TextView.java revision e7769bc76d01e9b031f65a58129b3e358ebabd3f
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget; 18 19import android.R; 20import android.content.ClipData; 21import android.content.ClipData.Item; 22import android.content.ClipboardManager; 23import android.content.Context; 24import android.content.Intent; 25import android.content.pm.PackageManager; 26import android.content.res.ColorStateList; 27import android.content.res.CompatibilityInfo; 28import android.content.res.Resources; 29import android.content.res.TypedArray; 30import android.content.res.XmlResourceParser; 31import android.graphics.Canvas; 32import android.graphics.Color; 33import android.graphics.Paint; 34import android.graphics.Path; 35import android.graphics.Rect; 36import android.graphics.RectF; 37import android.graphics.Typeface; 38import android.graphics.drawable.Drawable; 39import android.inputmethodservice.ExtractEditText; 40import android.os.Bundle; 41import android.os.Handler; 42import android.os.Message; 43import android.os.Parcel; 44import android.os.Parcelable; 45import android.os.SystemClock; 46import android.provider.Settings; 47import android.text.BoringLayout; 48import android.text.DynamicLayout; 49import android.text.Editable; 50import android.text.GetChars; 51import android.text.GraphicsOperations; 52import android.text.InputFilter; 53import android.text.InputType; 54import android.text.Layout; 55import android.text.ParcelableSpan; 56import android.text.Selection; 57import android.text.SpanWatcher; 58import android.text.Spannable; 59import android.text.SpannableString; 60import android.text.SpannableStringBuilder; 61import android.text.Spanned; 62import android.text.SpannedString; 63import android.text.StaticLayout; 64import android.text.TextDirectionHeuristic; 65import android.text.TextDirectionHeuristics; 66import android.text.TextPaint; 67import android.text.TextUtils; 68import android.text.TextUtils.TruncateAt; 69import android.text.TextWatcher; 70import android.text.method.AllCapsTransformationMethod; 71import android.text.method.ArrowKeyMovementMethod; 72import android.text.method.DateKeyListener; 73import android.text.method.DateTimeKeyListener; 74import android.text.method.DialerKeyListener; 75import android.text.method.DigitsKeyListener; 76import android.text.method.KeyListener; 77import android.text.method.LinkMovementMethod; 78import android.text.method.MetaKeyKeyListener; 79import android.text.method.MovementMethod; 80import android.text.method.PasswordTransformationMethod; 81import android.text.method.SingleLineTransformationMethod; 82import android.text.method.TextKeyListener; 83import android.text.method.TimeKeyListener; 84import android.text.method.TransformationMethod; 85import android.text.method.TransformationMethod2; 86import android.text.method.WordIterator; 87import android.text.style.CharacterStyle; 88import android.text.style.ClickableSpan; 89import android.text.style.EasyEditSpan; 90import android.text.style.ParagraphStyle; 91import android.text.style.SpellCheckSpan; 92import android.text.style.SuggestionRangeSpan; 93import android.text.style.SuggestionSpan; 94import android.text.style.TextAppearanceSpan; 95import android.text.style.URLSpan; 96import android.text.style.UpdateAppearance; 97import android.text.util.Linkify; 98import android.util.AttributeSet; 99import android.util.DisplayMetrics; 100import android.util.FloatMath; 101import android.util.Log; 102import android.util.TypedValue; 103import android.view.ActionMode; 104import android.view.ActionMode.Callback; 105import android.view.DisplayList; 106import android.view.DragEvent; 107import android.view.Gravity; 108import android.view.HapticFeedbackConstants; 109import android.view.HardwareCanvas; 110import android.view.KeyCharacterMap; 111import android.view.KeyEvent; 112import android.view.LayoutInflater; 113import android.view.Menu; 114import android.view.MenuItem; 115import android.view.MotionEvent; 116import android.view.View; 117import android.view.ViewConfiguration; 118import android.view.ViewDebug; 119import android.view.ViewGroup; 120import android.view.ViewGroup.LayoutParams; 121import android.view.ViewParent; 122import android.view.ViewRootImpl; 123import android.view.ViewTreeObserver; 124import android.view.WindowManager; 125import android.view.accessibility.AccessibilityEvent; 126import android.view.accessibility.AccessibilityManager; 127import android.view.accessibility.AccessibilityNodeInfo; 128import android.view.animation.AnimationUtils; 129import android.view.inputmethod.BaseInputConnection; 130import android.view.inputmethod.CompletionInfo; 131import android.view.inputmethod.CorrectionInfo; 132import android.view.inputmethod.EditorInfo; 133import android.view.inputmethod.ExtractedText; 134import android.view.inputmethod.ExtractedTextRequest; 135import android.view.inputmethod.InputConnection; 136import android.view.inputmethod.InputMethodManager; 137import android.view.textservice.SpellCheckerSubtype; 138import android.view.textservice.TextServicesManager; 139import android.widget.AdapterView.OnItemClickListener; 140import android.widget.RemoteViews.RemoteView; 141 142import com.android.internal.util.FastMath; 143import com.android.internal.widget.EditableInputConnection; 144 145import org.xmlpull.v1.XmlPullParserException; 146 147import java.io.IOException; 148import java.lang.ref.WeakReference; 149import java.text.BreakIterator; 150import java.util.ArrayList; 151import java.util.Arrays; 152import java.util.Comparator; 153import java.util.HashMap; 154import java.util.Locale; 155 156/** 157 * Displays text to the user and optionally allows them to edit it. A TextView 158 * is a complete text editor, however the basic class is configured to not 159 * allow editing; see {@link EditText} for a subclass that configures the text 160 * view for editing. 161 * 162 * <p> 163 * <b>XML attributes</b> 164 * <p> 165 * See {@link android.R.styleable#TextView TextView Attributes}, 166 * {@link android.R.styleable#View View Attributes} 167 * 168 * @attr ref android.R.styleable#TextView_text 169 * @attr ref android.R.styleable#TextView_bufferType 170 * @attr ref android.R.styleable#TextView_hint 171 * @attr ref android.R.styleable#TextView_textColor 172 * @attr ref android.R.styleable#TextView_textColorHighlight 173 * @attr ref android.R.styleable#TextView_textColorHint 174 * @attr ref android.R.styleable#TextView_textAppearance 175 * @attr ref android.R.styleable#TextView_textColorLink 176 * @attr ref android.R.styleable#TextView_textSize 177 * @attr ref android.R.styleable#TextView_textScaleX 178 * @attr ref android.R.styleable#TextView_typeface 179 * @attr ref android.R.styleable#TextView_textStyle 180 * @attr ref android.R.styleable#TextView_cursorVisible 181 * @attr ref android.R.styleable#TextView_maxLines 182 * @attr ref android.R.styleable#TextView_maxHeight 183 * @attr ref android.R.styleable#TextView_lines 184 * @attr ref android.R.styleable#TextView_height 185 * @attr ref android.R.styleable#TextView_minLines 186 * @attr ref android.R.styleable#TextView_minHeight 187 * @attr ref android.R.styleable#TextView_maxEms 188 * @attr ref android.R.styleable#TextView_maxWidth 189 * @attr ref android.R.styleable#TextView_ems 190 * @attr ref android.R.styleable#TextView_width 191 * @attr ref android.R.styleable#TextView_minEms 192 * @attr ref android.R.styleable#TextView_minWidth 193 * @attr ref android.R.styleable#TextView_gravity 194 * @attr ref android.R.styleable#TextView_scrollHorizontally 195 * @attr ref android.R.styleable#TextView_password 196 * @attr ref android.R.styleable#TextView_singleLine 197 * @attr ref android.R.styleable#TextView_selectAllOnFocus 198 * @attr ref android.R.styleable#TextView_includeFontPadding 199 * @attr ref android.R.styleable#TextView_maxLength 200 * @attr ref android.R.styleable#TextView_shadowColor 201 * @attr ref android.R.styleable#TextView_shadowDx 202 * @attr ref android.R.styleable#TextView_shadowDy 203 * @attr ref android.R.styleable#TextView_shadowRadius 204 * @attr ref android.R.styleable#TextView_autoLink 205 * @attr ref android.R.styleable#TextView_linksClickable 206 * @attr ref android.R.styleable#TextView_numeric 207 * @attr ref android.R.styleable#TextView_digits 208 * @attr ref android.R.styleable#TextView_phoneNumber 209 * @attr ref android.R.styleable#TextView_inputMethod 210 * @attr ref android.R.styleable#TextView_capitalize 211 * @attr ref android.R.styleable#TextView_autoText 212 * @attr ref android.R.styleable#TextView_editable 213 * @attr ref android.R.styleable#TextView_freezesText 214 * @attr ref android.R.styleable#TextView_ellipsize 215 * @attr ref android.R.styleable#TextView_drawableTop 216 * @attr ref android.R.styleable#TextView_drawableBottom 217 * @attr ref android.R.styleable#TextView_drawableRight 218 * @attr ref android.R.styleable#TextView_drawableLeft 219 * @attr ref android.R.styleable#TextView_drawablePadding 220 * @attr ref android.R.styleable#TextView_lineSpacingExtra 221 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 222 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 223 * @attr ref android.R.styleable#TextView_inputType 224 * @attr ref android.R.styleable#TextView_imeOptions 225 * @attr ref android.R.styleable#TextView_privateImeOptions 226 * @attr ref android.R.styleable#TextView_imeActionLabel 227 * @attr ref android.R.styleable#TextView_imeActionId 228 * @attr ref android.R.styleable#TextView_editorExtras 229 */ 230@RemoteView 231public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 232 static final String LOG_TAG = "TextView"; 233 static final boolean DEBUG_EXTRACT = false; 234 235 // Enum for the "typeface" XML parameter. 236 // TODO: How can we get this from the XML instead of hardcoding it here? 237 private static final int SANS = 1; 238 private static final int SERIF = 2; 239 private static final int MONOSPACE = 3; 240 241 // Bitfield for the "numeric" XML parameter. 242 // TODO: How can we get this from the XML instead of hardcoding it here? 243 private static final int SIGNED = 2; 244 private static final int DECIMAL = 4; 245 246 private static enum TEXT_ALIGN { 247 INHERIT, GRAVITY, TEXT_START, TEXT_END, CENTER, VIEW_START, VIEW_END; 248 } 249 250 /** 251 * Draw marquee text with fading edges as usual 252 */ 253 private static final int MARQUEE_FADE_NORMAL = 0; 254 255 /** 256 * Draw marquee text as ellipsize end while inactive instead of with the fade. 257 * (Useful for devices where the fade can be expensive if overdone) 258 */ 259 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 260 261 /** 262 * Draw marquee text with fading edges because it is currently active/animating. 263 */ 264 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 265 266 private static final int LINES = 1; 267 private static final int EMS = LINES; 268 private static final int PIXELS = 2; 269 270 private static final RectF TEMP_RECTF = new RectF(); 271 private static final float[] TEMP_POSITION = new float[2]; 272 273 // XXX should be much larger 274 private static final int VERY_WIDE = 1024*1024; 275 private static final int BLINK = 500; 276 private static final int ANIMATED_SCROLL_GAP = 250; 277 278 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 279 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 280 281 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 282 private static final int CHANGE_WATCHER_PRIORITY = 100; 283 284 // New state used to change background based on whether this TextView is multiline. 285 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 286 287 // System wide time for last cut or copy action. 288 private static long LAST_CUT_OR_COPY_TIME; 289 290 private int mCurrentAlpha = 255; 291 292 private ColorStateList mTextColor; 293 private ColorStateList mHintTextColor; 294 private ColorStateList mLinkTextColor; 295 private int mCurTextColor; 296 private int mCurHintTextColor; 297 private boolean mFreezesText; 298 private boolean mTemporaryDetach; 299 private boolean mDispatchTemporaryDetach; 300 301 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 302 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 303 304 private float mShadowRadius, mShadowDx, mShadowDy; 305 306 private boolean mPreDrawRegistered; 307 308 private TextUtils.TruncateAt mEllipsize; 309 310 static class Drawables { 311 final Rect mCompoundRect = new Rect(); 312 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight, 313 mDrawableStart, mDrawableEnd; 314 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 315 mDrawableSizeStart, mDrawableSizeEnd; 316 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 317 mDrawableHeightStart, mDrawableHeightEnd; 318 int mDrawablePadding; 319 } 320 private Drawables mDrawables; 321 322 private CharWrapper mCharWrapper; 323 324 private Marquee mMarquee; 325 private boolean mRestartMarquee; 326 327 private int mMarqueeRepeatLimit = 3; 328 329 // The alignment to pass to Layout, or null if not resolved. 330 private Layout.Alignment mLayoutAlignment; 331 332 // The default value for mTextAlign. 333 private TEXT_ALIGN mTextAlign = TEXT_ALIGN.INHERIT; 334 335 private boolean mResolvedDrawables; 336 337 /** 338 * On some devices the fading edges add a performance penalty if used 339 * extensively in the same layout. This mode indicates how the marquee 340 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 341 */ 342 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 343 344 /** 345 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 346 * the layout that should be used when the mode switches. 347 */ 348 private Layout mSavedMarqueeModeLayout; 349 350 @ViewDebug.ExportedProperty(category = "text") 351 private CharSequence mText; 352 private CharSequence mTransformed; 353 private BufferType mBufferType = BufferType.NORMAL; 354 355 private CharSequence mHint; 356 private Layout mHintLayout; 357 358 private MovementMethod mMovement; 359 360 private TransformationMethod mTransformation; 361 private boolean mAllowTransformationLengthChange; 362 private ChangeWatcher mChangeWatcher; 363 364 private ArrayList<TextWatcher> mListeners; 365 366 // display attributes 367 private final TextPaint mTextPaint; 368 private boolean mUserSetTextScaleX; 369 private Layout mLayout; 370 371 private int mGravity = Gravity.TOP | Gravity.START; 372 private boolean mHorizontallyScrolling; 373 374 private int mAutoLinkMask; 375 private boolean mLinksClickable = true; 376 377 private float mSpacingMult = 1.0f; 378 private float mSpacingAdd = 0.0f; 379 380 private int mMaximum = Integer.MAX_VALUE; 381 private int mMaxMode = LINES; 382 private int mMinimum = 0; 383 private int mMinMode = LINES; 384 385 private int mOldMaximum = mMaximum; 386 private int mOldMaxMode = mMaxMode; 387 388 private int mMaxWidth = Integer.MAX_VALUE; 389 private int mMaxWidthMode = PIXELS; 390 private int mMinWidth = 0; 391 private int mMinWidthMode = PIXELS; 392 393 private boolean mSingleLine; 394 private int mDesiredHeightAtMeasure = -1; 395 private boolean mIncludePad = true; 396 397 // tmp primitives, so we don't alloc them on each draw 398 private Rect mTempRect; 399 private long mLastScroll; 400 private Scroller mScroller; 401 402 private BoringLayout.Metrics mBoring, mHintBoring; 403 private BoringLayout mSavedLayout, mSavedHintLayout; 404 405 private TextDirectionHeuristic mTextDir; 406 407 private InputFilter[] mFilters = NO_FILTERS; 408 409 // Although these fields are specific to editable text, they are not added to Editor because 410 // they are defined by the TextView's style and are theme-dependent. 411 private int mHighlightColor = 0x6633B5E5; 412 private int mCursorDrawableRes; 413 // These four fields, could be moved to Editor, since we know their default values and we 414 // could condition the creation of the Editor to a non standard value. This is however 415 // brittle since the hardcoded values here (such as 416 // com.android.internal.R.drawable.text_select_handle_left) would have to be updated if the 417 // default style is modified. 418 private int mTextSelectHandleLeftRes; 419 private int mTextSelectHandleRightRes; 420 private int mTextSelectHandleRes; 421 private int mTextEditSuggestionItemLayout; 422 423 /** 424 * EditText specific data, created on demand when one of the Editor fields is used. 425 * See {@link #createEditorIfNeeded(String)}. 426 */ 427 private Editor mEditor; 428 429 /* 430 * Kick-start the font cache for the zygote process (to pay the cost of 431 * initializing freetype for our default font only once). 432 */ 433 static { 434 Paint p = new Paint(); 435 p.setAntiAlias(true); 436 // We don't care about the result, just the side-effect of measuring. 437 p.measureText("H"); 438 } 439 440 /** 441 * Interface definition for a callback to be invoked when an action is 442 * performed on the editor. 443 */ 444 public interface OnEditorActionListener { 445 /** 446 * Called when an action is being performed. 447 * 448 * @param v The view that was clicked. 449 * @param actionId Identifier of the action. This will be either the 450 * identifier you supplied, or {@link EditorInfo#IME_NULL 451 * EditorInfo.IME_NULL} if being called due to the enter key 452 * being pressed. 453 * @param event If triggered by an enter key, this is the event; 454 * otherwise, this is null. 455 * @return Return true if you have consumed the action, else false. 456 */ 457 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 458 } 459 460 public TextView(Context context) { 461 this(context, null); 462 } 463 464 public TextView(Context context, AttributeSet attrs) { 465 this(context, attrs, com.android.internal.R.attr.textViewStyle); 466 } 467 468 @SuppressWarnings("deprecation") 469 public TextView(Context context, AttributeSet attrs, int defStyle) { 470 super(context, attrs, defStyle); 471 mText = ""; 472 473 final Resources res = getResources(); 474 final CompatibilityInfo compat = res.getCompatibilityInfo(); 475 476 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 477 mTextPaint.density = res.getDisplayMetrics().density; 478 mTextPaint.setCompatibilityScaling(compat.applicationScale); 479 480 mMovement = getDefaultMovementMethod(); 481 482 mTransformation = null; 483 484 int textColorHighlight = 0; 485 ColorStateList textColor = null; 486 ColorStateList textColorHint = null; 487 ColorStateList textColorLink = null; 488 int textSize = 15; 489 int typefaceIndex = -1; 490 int styleIndex = -1; 491 boolean allCaps = false; 492 493 final Resources.Theme theme = context.getTheme(); 494 495 /* 496 * Look the appearance up without checking first if it exists because 497 * almost every TextView has one and it greatly simplifies the logic 498 * to be able to parse the appearance first and then let specific tags 499 * for this View override it. 500 */ 501 TypedArray a = theme.obtainStyledAttributes( 502 attrs, com.android.internal.R.styleable.TextViewAppearance, defStyle, 0); 503 TypedArray appearance = null; 504 int ap = a.getResourceId( 505 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 506 a.recycle(); 507 if (ap != -1) { 508 appearance = theme.obtainStyledAttributes( 509 ap, com.android.internal.R.styleable.TextAppearance); 510 } 511 if (appearance != null) { 512 int n = appearance.getIndexCount(); 513 for (int i = 0; i < n; i++) { 514 int attr = appearance.getIndex(i); 515 516 switch (attr) { 517 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 518 textColorHighlight = appearance.getColor(attr, textColorHighlight); 519 break; 520 521 case com.android.internal.R.styleable.TextAppearance_textColor: 522 textColor = appearance.getColorStateList(attr); 523 break; 524 525 case com.android.internal.R.styleable.TextAppearance_textColorHint: 526 textColorHint = appearance.getColorStateList(attr); 527 break; 528 529 case com.android.internal.R.styleable.TextAppearance_textColorLink: 530 textColorLink = appearance.getColorStateList(attr); 531 break; 532 533 case com.android.internal.R.styleable.TextAppearance_textSize: 534 textSize = appearance.getDimensionPixelSize(attr, textSize); 535 break; 536 537 case com.android.internal.R.styleable.TextAppearance_typeface: 538 typefaceIndex = appearance.getInt(attr, -1); 539 break; 540 541 case com.android.internal.R.styleable.TextAppearance_textStyle: 542 styleIndex = appearance.getInt(attr, -1); 543 break; 544 545 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 546 allCaps = appearance.getBoolean(attr, false); 547 break; 548 } 549 } 550 551 appearance.recycle(); 552 } 553 554 boolean editable = getDefaultEditable(); 555 CharSequence inputMethod = null; 556 int numeric = 0; 557 CharSequence digits = null; 558 boolean phone = false; 559 boolean autotext = false; 560 int autocap = -1; 561 int buffertype = 0; 562 boolean selectallonfocus = false; 563 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 564 drawableBottom = null, drawableStart = null, drawableEnd = null; 565 int drawablePadding = 0; 566 int ellipsize = -1; 567 boolean singleLine = false; 568 int maxlength = -1; 569 CharSequence text = ""; 570 CharSequence hint = null; 571 int shadowcolor = 0; 572 float dx = 0, dy = 0, r = 0; 573 boolean password = false; 574 int inputType = EditorInfo.TYPE_NULL; 575 576 a = theme.obtainStyledAttributes( 577 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 578 579 int n = a.getIndexCount(); 580 for (int i = 0; i < n; i++) { 581 int attr = a.getIndex(i); 582 583 switch (attr) { 584 case com.android.internal.R.styleable.TextView_editable: 585 editable = a.getBoolean(attr, editable); 586 break; 587 588 case com.android.internal.R.styleable.TextView_inputMethod: 589 inputMethod = a.getText(attr); 590 break; 591 592 case com.android.internal.R.styleable.TextView_numeric: 593 numeric = a.getInt(attr, numeric); 594 break; 595 596 case com.android.internal.R.styleable.TextView_digits: 597 digits = a.getText(attr); 598 break; 599 600 case com.android.internal.R.styleable.TextView_phoneNumber: 601 phone = a.getBoolean(attr, phone); 602 break; 603 604 case com.android.internal.R.styleable.TextView_autoText: 605 autotext = a.getBoolean(attr, autotext); 606 break; 607 608 case com.android.internal.R.styleable.TextView_capitalize: 609 autocap = a.getInt(attr, autocap); 610 break; 611 612 case com.android.internal.R.styleable.TextView_bufferType: 613 buffertype = a.getInt(attr, buffertype); 614 break; 615 616 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 617 selectallonfocus = a.getBoolean(attr, selectallonfocus); 618 break; 619 620 case com.android.internal.R.styleable.TextView_autoLink: 621 mAutoLinkMask = a.getInt(attr, 0); 622 break; 623 624 case com.android.internal.R.styleable.TextView_linksClickable: 625 mLinksClickable = a.getBoolean(attr, true); 626 break; 627 628 case com.android.internal.R.styleable.TextView_drawableLeft: 629 drawableLeft = a.getDrawable(attr); 630 break; 631 632 case com.android.internal.R.styleable.TextView_drawableTop: 633 drawableTop = a.getDrawable(attr); 634 break; 635 636 case com.android.internal.R.styleable.TextView_drawableRight: 637 drawableRight = a.getDrawable(attr); 638 break; 639 640 case com.android.internal.R.styleable.TextView_drawableBottom: 641 drawableBottom = a.getDrawable(attr); 642 break; 643 644 case com.android.internal.R.styleable.TextView_drawableStart: 645 drawableStart = a.getDrawable(attr); 646 break; 647 648 case com.android.internal.R.styleable.TextView_drawableEnd: 649 drawableEnd = a.getDrawable(attr); 650 break; 651 652 case com.android.internal.R.styleable.TextView_drawablePadding: 653 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 654 break; 655 656 case com.android.internal.R.styleable.TextView_maxLines: 657 setMaxLines(a.getInt(attr, -1)); 658 break; 659 660 case com.android.internal.R.styleable.TextView_maxHeight: 661 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 662 break; 663 664 case com.android.internal.R.styleable.TextView_lines: 665 setLines(a.getInt(attr, -1)); 666 break; 667 668 case com.android.internal.R.styleable.TextView_height: 669 setHeight(a.getDimensionPixelSize(attr, -1)); 670 break; 671 672 case com.android.internal.R.styleable.TextView_minLines: 673 setMinLines(a.getInt(attr, -1)); 674 break; 675 676 case com.android.internal.R.styleable.TextView_minHeight: 677 setMinHeight(a.getDimensionPixelSize(attr, -1)); 678 break; 679 680 case com.android.internal.R.styleable.TextView_maxEms: 681 setMaxEms(a.getInt(attr, -1)); 682 break; 683 684 case com.android.internal.R.styleable.TextView_maxWidth: 685 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 686 break; 687 688 case com.android.internal.R.styleable.TextView_ems: 689 setEms(a.getInt(attr, -1)); 690 break; 691 692 case com.android.internal.R.styleable.TextView_width: 693 setWidth(a.getDimensionPixelSize(attr, -1)); 694 break; 695 696 case com.android.internal.R.styleable.TextView_minEms: 697 setMinEms(a.getInt(attr, -1)); 698 break; 699 700 case com.android.internal.R.styleable.TextView_minWidth: 701 setMinWidth(a.getDimensionPixelSize(attr, -1)); 702 break; 703 704 case com.android.internal.R.styleable.TextView_gravity: 705 setGravity(a.getInt(attr, -1)); 706 break; 707 708 case com.android.internal.R.styleable.TextView_hint: 709 hint = a.getText(attr); 710 break; 711 712 case com.android.internal.R.styleable.TextView_text: 713 text = a.getText(attr); 714 break; 715 716 case com.android.internal.R.styleable.TextView_scrollHorizontally: 717 if (a.getBoolean(attr, false)) { 718 setHorizontallyScrolling(true); 719 } 720 break; 721 722 case com.android.internal.R.styleable.TextView_singleLine: 723 singleLine = a.getBoolean(attr, singleLine); 724 break; 725 726 case com.android.internal.R.styleable.TextView_ellipsize: 727 ellipsize = a.getInt(attr, ellipsize); 728 break; 729 730 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 731 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 732 break; 733 734 case com.android.internal.R.styleable.TextView_includeFontPadding: 735 if (!a.getBoolean(attr, true)) { 736 setIncludeFontPadding(false); 737 } 738 break; 739 740 case com.android.internal.R.styleable.TextView_cursorVisible: 741 if (!a.getBoolean(attr, true)) { 742 setCursorVisible(false); 743 } 744 break; 745 746 case com.android.internal.R.styleable.TextView_maxLength: 747 maxlength = a.getInt(attr, -1); 748 break; 749 750 case com.android.internal.R.styleable.TextView_textScaleX: 751 setTextScaleX(a.getFloat(attr, 1.0f)); 752 break; 753 754 case com.android.internal.R.styleable.TextView_freezesText: 755 mFreezesText = a.getBoolean(attr, false); 756 break; 757 758 case com.android.internal.R.styleable.TextView_shadowColor: 759 shadowcolor = a.getInt(attr, 0); 760 break; 761 762 case com.android.internal.R.styleable.TextView_shadowDx: 763 dx = a.getFloat(attr, 0); 764 break; 765 766 case com.android.internal.R.styleable.TextView_shadowDy: 767 dy = a.getFloat(attr, 0); 768 break; 769 770 case com.android.internal.R.styleable.TextView_shadowRadius: 771 r = a.getFloat(attr, 0); 772 break; 773 774 case com.android.internal.R.styleable.TextView_enabled: 775 setEnabled(a.getBoolean(attr, isEnabled())); 776 break; 777 778 case com.android.internal.R.styleable.TextView_textColorHighlight: 779 textColorHighlight = a.getColor(attr, textColorHighlight); 780 break; 781 782 case com.android.internal.R.styleable.TextView_textColor: 783 textColor = a.getColorStateList(attr); 784 break; 785 786 case com.android.internal.R.styleable.TextView_textColorHint: 787 textColorHint = a.getColorStateList(attr); 788 break; 789 790 case com.android.internal.R.styleable.TextView_textColorLink: 791 textColorLink = a.getColorStateList(attr); 792 break; 793 794 case com.android.internal.R.styleable.TextView_textSize: 795 textSize = a.getDimensionPixelSize(attr, textSize); 796 break; 797 798 case com.android.internal.R.styleable.TextView_typeface: 799 typefaceIndex = a.getInt(attr, typefaceIndex); 800 break; 801 802 case com.android.internal.R.styleable.TextView_textStyle: 803 styleIndex = a.getInt(attr, styleIndex); 804 break; 805 806 case com.android.internal.R.styleable.TextView_password: 807 password = a.getBoolean(attr, password); 808 break; 809 810 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 811 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 812 break; 813 814 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 815 mSpacingMult = a.getFloat(attr, mSpacingMult); 816 break; 817 818 case com.android.internal.R.styleable.TextView_inputType: 819 inputType = a.getInt(attr, EditorInfo.TYPE_NULL); 820 break; 821 822 case com.android.internal.R.styleable.TextView_imeOptions: 823 createEditorIfNeeded("IME options specified in constructor"); 824 if (getEditor().mInputContentType == null) { 825 getEditor().mInputContentType = new InputContentType(); 826 } 827 getEditor().mInputContentType.imeOptions = a.getInt(attr, 828 getEditor().mInputContentType.imeOptions); 829 break; 830 831 case com.android.internal.R.styleable.TextView_imeActionLabel: 832 createEditorIfNeeded("IME action label specified in constructor"); 833 if (getEditor().mInputContentType == null) { 834 getEditor().mInputContentType = new InputContentType(); 835 } 836 getEditor().mInputContentType.imeActionLabel = a.getText(attr); 837 break; 838 839 case com.android.internal.R.styleable.TextView_imeActionId: 840 createEditorIfNeeded("IME action id specified in constructor"); 841 if (getEditor().mInputContentType == null) { 842 getEditor().mInputContentType = new InputContentType(); 843 } 844 getEditor().mInputContentType.imeActionId = a.getInt(attr, 845 getEditor().mInputContentType.imeActionId); 846 break; 847 848 case com.android.internal.R.styleable.TextView_privateImeOptions: 849 setPrivateImeOptions(a.getString(attr)); 850 break; 851 852 case com.android.internal.R.styleable.TextView_editorExtras: 853 try { 854 setInputExtras(a.getResourceId(attr, 0)); 855 } catch (XmlPullParserException e) { 856 Log.w(LOG_TAG, "Failure reading input extras", e); 857 } catch (IOException e) { 858 Log.w(LOG_TAG, "Failure reading input extras", e); 859 } 860 break; 861 862 case com.android.internal.R.styleable.TextView_textCursorDrawable: 863 mCursorDrawableRes = a.getResourceId(attr, 0); 864 break; 865 866 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 867 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 868 break; 869 870 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 871 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 872 break; 873 874 case com.android.internal.R.styleable.TextView_textSelectHandle: 875 mTextSelectHandleRes = a.getResourceId(attr, 0); 876 break; 877 878 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 879 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 880 break; 881 882 case com.android.internal.R.styleable.TextView_textIsSelectable: 883 setTextIsSelectable(a.getBoolean(attr, false)); 884 break; 885 886 case com.android.internal.R.styleable.TextView_textAllCaps: 887 allCaps = a.getBoolean(attr, false); 888 break; 889 } 890 } 891 a.recycle(); 892 893 BufferType bufferType = BufferType.EDITABLE; 894 895 final int variation = 896 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 897 final boolean passwordInputType = variation 898 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 899 final boolean webPasswordInputType = variation 900 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 901 final boolean numberPasswordInputType = variation 902 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 903 904 if (inputMethod != null) { 905 Class<?> c; 906 907 try { 908 c = Class.forName(inputMethod.toString()); 909 } catch (ClassNotFoundException ex) { 910 throw new RuntimeException(ex); 911 } 912 913 try { 914 createEditorIfNeeded("inputMethod in ctor"); 915 getEditor().mKeyListener = (KeyListener) c.newInstance(); 916 } catch (InstantiationException ex) { 917 throw new RuntimeException(ex); 918 } catch (IllegalAccessException ex) { 919 throw new RuntimeException(ex); 920 } 921 try { 922 getEditor().mInputType = inputType != EditorInfo.TYPE_NULL 923 ? inputType 924 : getEditor().mKeyListener.getInputType(); 925 } catch (IncompatibleClassChangeError e) { 926 getEditor().mInputType = EditorInfo.TYPE_CLASS_TEXT; 927 } 928 } else if (digits != null) { 929 createEditorIfNeeded("digits in ctor"); 930 getEditor().mKeyListener = DigitsKeyListener.getInstance(digits.toString()); 931 // If no input type was specified, we will default to generic 932 // text, since we can't tell the IME about the set of digits 933 // that was selected. 934 getEditor().mInputType = inputType != EditorInfo.TYPE_NULL 935 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 936 } else if (inputType != EditorInfo.TYPE_NULL) { 937 setInputType(inputType, true); 938 // If set, the input type overrides what was set using the deprecated singleLine flag. 939 singleLine = !isMultilineInputType(inputType); 940 } else if (phone) { 941 createEditorIfNeeded("dialer in ctor"); 942 getEditor().mKeyListener = DialerKeyListener.getInstance(); 943 getEditor().mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 944 } else if (numeric != 0) { 945 createEditorIfNeeded("numeric in ctor"); 946 getEditor().mKeyListener = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 947 (numeric & DECIMAL) != 0); 948 inputType = EditorInfo.TYPE_CLASS_NUMBER; 949 if ((numeric & SIGNED) != 0) { 950 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 951 } 952 if ((numeric & DECIMAL) != 0) { 953 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 954 } 955 getEditor().mInputType = inputType; 956 } else if (autotext || autocap != -1) { 957 TextKeyListener.Capitalize cap; 958 959 inputType = EditorInfo.TYPE_CLASS_TEXT; 960 961 switch (autocap) { 962 case 1: 963 cap = TextKeyListener.Capitalize.SENTENCES; 964 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 965 break; 966 967 case 2: 968 cap = TextKeyListener.Capitalize.WORDS; 969 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 970 break; 971 972 case 3: 973 cap = TextKeyListener.Capitalize.CHARACTERS; 974 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 975 break; 976 977 default: 978 cap = TextKeyListener.Capitalize.NONE; 979 break; 980 } 981 982 createEditorIfNeeded("text input in ctor"); 983 getEditor().mKeyListener = TextKeyListener.getInstance(autotext, cap); 984 getEditor().mInputType = inputType; 985 } else if (isTextSelectable()) { 986 // Prevent text changes from keyboard. 987 if (mEditor != null) { 988 getEditor().mKeyListener = null; 989 getEditor().mInputType = EditorInfo.TYPE_NULL; 990 } 991 bufferType = BufferType.SPANNABLE; 992 // So that selection can be changed using arrow keys and touch is handled. 993 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 994 } else if (editable) { 995 createEditorIfNeeded("editable input in ctor"); 996 getEditor().mKeyListener = TextKeyListener.getInstance(); 997 getEditor().mInputType = EditorInfo.TYPE_CLASS_TEXT; 998 } else { 999 if (mEditor != null) getEditor().mKeyListener = null; 1000 1001 switch (buffertype) { 1002 case 0: 1003 bufferType = BufferType.NORMAL; 1004 break; 1005 case 1: 1006 bufferType = BufferType.SPANNABLE; 1007 break; 1008 case 2: 1009 bufferType = BufferType.EDITABLE; 1010 break; 1011 } 1012 } 1013 1014 if (mEditor != null) getEditor().adjustInputType(password, passwordInputType, webPasswordInputType, 1015 numberPasswordInputType); 1016 1017 if (selectallonfocus) { 1018 createEditorIfNeeded("selectallonfocus in constructor"); 1019 getEditor().mSelectAllOnFocus = true; 1020 1021 if (bufferType == BufferType.NORMAL) 1022 bufferType = BufferType.SPANNABLE; 1023 } 1024 1025 setCompoundDrawablesWithIntrinsicBounds( 1026 drawableLeft, drawableTop, drawableRight, drawableBottom); 1027 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1028 setCompoundDrawablePadding(drawablePadding); 1029 1030 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1031 // of lines of height are unchanged for multi-line TextViews. 1032 setInputTypeSingleLine(singleLine); 1033 applySingleLine(singleLine, singleLine, singleLine); 1034 1035 if (singleLine && getKeyListener() == null && ellipsize < 0) { 1036 ellipsize = 3; // END 1037 } 1038 1039 switch (ellipsize) { 1040 case 1: 1041 setEllipsize(TextUtils.TruncateAt.START); 1042 break; 1043 case 2: 1044 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1045 break; 1046 case 3: 1047 setEllipsize(TextUtils.TruncateAt.END); 1048 break; 1049 case 4: 1050 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1051 setHorizontalFadingEdgeEnabled(true); 1052 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1053 } else { 1054 setHorizontalFadingEdgeEnabled(false); 1055 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1056 } 1057 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1058 break; 1059 } 1060 1061 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 1062 setHintTextColor(textColorHint); 1063 setLinkTextColor(textColorLink); 1064 if (textColorHighlight != 0) { 1065 setHighlightColor(textColorHighlight); 1066 } 1067 setRawTextSize(textSize); 1068 1069 if (allCaps) { 1070 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 1071 } 1072 1073 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 1074 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1075 typefaceIndex = MONOSPACE; 1076 } else if (mEditor != null && (getEditor().mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1077 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1078 typefaceIndex = MONOSPACE; 1079 } 1080 1081 setTypefaceByIndex(typefaceIndex, styleIndex); 1082 1083 if (shadowcolor != 0) { 1084 setShadowLayer(r, dx, dy, shadowcolor); 1085 } 1086 1087 if (maxlength >= 0) { 1088 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1089 } else { 1090 setFilters(NO_FILTERS); 1091 } 1092 1093 setText(text, bufferType); 1094 if (hint != null) setHint(hint); 1095 1096 /* 1097 * Views are not normally focusable unless specified to be. 1098 * However, TextViews that have input or movement methods *are* 1099 * focusable by default. 1100 */ 1101 a = context.obtainStyledAttributes(attrs, 1102 com.android.internal.R.styleable.View, 1103 defStyle, 0); 1104 1105 boolean focusable = mMovement != null || getKeyListener() != null; 1106 boolean clickable = focusable; 1107 boolean longClickable = focusable; 1108 1109 n = a.getIndexCount(); 1110 for (int i = 0; i < n; i++) { 1111 int attr = a.getIndex(i); 1112 1113 switch (attr) { 1114 case com.android.internal.R.styleable.View_focusable: 1115 focusable = a.getBoolean(attr, focusable); 1116 break; 1117 1118 case com.android.internal.R.styleable.View_clickable: 1119 clickable = a.getBoolean(attr, clickable); 1120 break; 1121 1122 case com.android.internal.R.styleable.View_longClickable: 1123 longClickable = a.getBoolean(attr, longClickable); 1124 break; 1125 } 1126 } 1127 a.recycle(); 1128 1129 setFocusable(focusable); 1130 setClickable(clickable); 1131 setLongClickable(longClickable); 1132 1133 prepareCursorControllers(); 1134 } 1135 1136 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1137 Typeface tf = null; 1138 switch (typefaceIndex) { 1139 case SANS: 1140 tf = Typeface.SANS_SERIF; 1141 break; 1142 1143 case SERIF: 1144 tf = Typeface.SERIF; 1145 break; 1146 1147 case MONOSPACE: 1148 tf = Typeface.MONOSPACE; 1149 break; 1150 } 1151 1152 setTypeface(tf, styleIndex); 1153 } 1154 1155 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1156 boolean hasRelativeDrawables = (start != null) || (end != null); 1157 if (hasRelativeDrawables) { 1158 Drawables dr = mDrawables; 1159 if (dr == null) { 1160 mDrawables = dr = new Drawables(); 1161 } 1162 final Rect compoundRect = dr.mCompoundRect; 1163 int[] state = getDrawableState(); 1164 if (start != null) { 1165 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1166 start.setState(state); 1167 start.copyBounds(compoundRect); 1168 start.setCallback(this); 1169 1170 dr.mDrawableStart = start; 1171 dr.mDrawableSizeStart = compoundRect.width(); 1172 dr.mDrawableHeightStart = compoundRect.height(); 1173 } else { 1174 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1175 } 1176 if (end != null) { 1177 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1178 end.setState(state); 1179 end.copyBounds(compoundRect); 1180 end.setCallback(this); 1181 1182 dr.mDrawableEnd = end; 1183 dr.mDrawableSizeEnd = compoundRect.width(); 1184 dr.mDrawableHeightEnd = compoundRect.height(); 1185 } else { 1186 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1187 } 1188 } 1189 } 1190 1191 @Override 1192 public void setEnabled(boolean enabled) { 1193 if (enabled == isEnabled()) { 1194 return; 1195 } 1196 1197 if (!enabled) { 1198 // Hide the soft input if the currently active TextView is disabled 1199 InputMethodManager imm = InputMethodManager.peekInstance(); 1200 if (imm != null && imm.isActive(this)) { 1201 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1202 } 1203 } 1204 1205 super.setEnabled(enabled); 1206 1207 if (enabled) { 1208 // Make sure IME is updated with current editor info. 1209 InputMethodManager imm = InputMethodManager.peekInstance(); 1210 if (imm != null) imm.restartInput(this); 1211 } 1212 1213 if (mEditor != null) getEditor().mTextDisplayListIsValid = false; 1214 prepareCursorControllers(); 1215 1216 // start or stop the cursor blinking as appropriate 1217 makeBlink(); 1218 } 1219 1220 /** 1221 * Sets the typeface and style in which the text should be displayed, 1222 * and turns on the fake bold and italic bits in the Paint if the 1223 * Typeface that you provided does not have all the bits in the 1224 * style that you specified. 1225 * 1226 * @attr ref android.R.styleable#TextView_typeface 1227 * @attr ref android.R.styleable#TextView_textStyle 1228 */ 1229 public void setTypeface(Typeface tf, int style) { 1230 if (style > 0) { 1231 if (tf == null) { 1232 tf = Typeface.defaultFromStyle(style); 1233 } else { 1234 tf = Typeface.create(tf, style); 1235 } 1236 1237 setTypeface(tf); 1238 // now compute what (if any) algorithmic styling is needed 1239 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1240 int need = style & ~typefaceStyle; 1241 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1242 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1243 } else { 1244 mTextPaint.setFakeBoldText(false); 1245 mTextPaint.setTextSkewX(0); 1246 setTypeface(tf); 1247 } 1248 } 1249 1250 /** 1251 * Subclasses override this to specify that they have a KeyListener 1252 * by default even if not specifically called for in the XML options. 1253 */ 1254 protected boolean getDefaultEditable() { 1255 return false; 1256 } 1257 1258 /** 1259 * Subclasses override this to specify a default movement method. 1260 */ 1261 protected MovementMethod getDefaultMovementMethod() { 1262 return null; 1263 } 1264 1265 /** 1266 * Return the text the TextView is displaying. If setText() was called with 1267 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1268 * the return value from this method to Spannable or Editable, respectively. 1269 * 1270 * Note: The content of the return value should not be modified. If you want 1271 * a modifiable one, you should make your own copy first. 1272 */ 1273 @ViewDebug.CapturedViewProperty 1274 public CharSequence getText() { 1275 return mText; 1276 } 1277 1278 /** 1279 * Returns the length, in characters, of the text managed by this TextView 1280 */ 1281 public int length() { 1282 return mText.length(); 1283 } 1284 1285 /** 1286 * Return the text the TextView is displaying as an Editable object. If 1287 * the text is not editable, null is returned. 1288 * 1289 * @see #getText 1290 */ 1291 public Editable getEditableText() { 1292 return (mText instanceof Editable) ? (Editable)mText : null; 1293 } 1294 1295 /** 1296 * @return the height of one standard line in pixels. Note that markup 1297 * within the text can cause individual lines to be taller or shorter 1298 * than this height, and the layout may contain additional first- 1299 * or last-line padding. 1300 */ 1301 public int getLineHeight() { 1302 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1303 } 1304 1305 /** 1306 * @return the Layout that is currently being used to display the text. 1307 * This can be null if the text or width has recently changes. 1308 */ 1309 public final Layout getLayout() { 1310 return mLayout; 1311 } 1312 1313 /** 1314 * @return the current key listener for this TextView. 1315 * This will frequently be null for non-EditText TextViews. 1316 */ 1317 public final KeyListener getKeyListener() { 1318 return mEditor == null ? null : getEditor().mKeyListener; 1319 } 1320 1321 /** 1322 * Sets the key listener to be used with this TextView. This can be null 1323 * to disallow user input. Note that this method has significant and 1324 * subtle interactions with soft keyboards and other input method: 1325 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1326 * for important details. Calling this method will replace the current 1327 * content type of the text view with the content type returned by the 1328 * key listener. 1329 * <p> 1330 * Be warned that if you want a TextView with a key listener or movement 1331 * method not to be focusable, or if you want a TextView without a 1332 * key listener or movement method to be focusable, you must call 1333 * {@link #setFocusable} again after calling this to get the focusability 1334 * back the way you want it. 1335 * 1336 * @attr ref android.R.styleable#TextView_numeric 1337 * @attr ref android.R.styleable#TextView_digits 1338 * @attr ref android.R.styleable#TextView_phoneNumber 1339 * @attr ref android.R.styleable#TextView_inputMethod 1340 * @attr ref android.R.styleable#TextView_capitalize 1341 * @attr ref android.R.styleable#TextView_autoText 1342 */ 1343 public void setKeyListener(KeyListener input) { 1344 setKeyListenerOnly(input); 1345 fixFocusableAndClickableSettings(); 1346 1347 if (input != null) { 1348 createEditorIfNeeded("input is not null"); 1349 try { 1350 getEditor().mInputType = getEditor().mKeyListener.getInputType(); 1351 } catch (IncompatibleClassChangeError e) { 1352 getEditor().mInputType = EditorInfo.TYPE_CLASS_TEXT; 1353 } 1354 // Change inputType, without affecting transformation. 1355 // No need to applySingleLine since mSingleLine is unchanged. 1356 setInputTypeSingleLine(mSingleLine); 1357 } else { 1358 if (mEditor != null) getEditor().mInputType = EditorInfo.TYPE_NULL; 1359 } 1360 1361 InputMethodManager imm = InputMethodManager.peekInstance(); 1362 if (imm != null) imm.restartInput(this); 1363 } 1364 1365 private void setKeyListenerOnly(KeyListener input) { 1366 if (mEditor == null && input == null) return; // null is the default value 1367 1368 createEditorIfNeeded("setKeyListenerOnly"); 1369 if (getEditor().mKeyListener != input) { 1370 getEditor().mKeyListener = input; 1371 if (input != null && !(mText instanceof Editable)) { 1372 setText(mText); 1373 } 1374 1375 setFilters((Editable) mText, mFilters); 1376 } 1377 } 1378 1379 /** 1380 * @return the movement method being used for this TextView. 1381 * This will frequently be null for non-EditText TextViews. 1382 */ 1383 public final MovementMethod getMovementMethod() { 1384 return mMovement; 1385 } 1386 1387 /** 1388 * Sets the movement method (arrow key handler) to be used for 1389 * this TextView. This can be null to disallow using the arrow keys 1390 * to move the cursor or scroll the view. 1391 * <p> 1392 * Be warned that if you want a TextView with a key listener or movement 1393 * method not to be focusable, or if you want a TextView without a 1394 * key listener or movement method to be focusable, you must call 1395 * {@link #setFocusable} again after calling this to get the focusability 1396 * back the way you want it. 1397 */ 1398 public final void setMovementMethod(MovementMethod movement) { 1399 if (mMovement != movement) { 1400 mMovement = movement; 1401 1402 if (movement != null && !(mText instanceof Spannable)) { 1403 setText(mText); 1404 } 1405 1406 fixFocusableAndClickableSettings(); 1407 1408 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1409 prepareCursorControllers(); 1410 } 1411 } 1412 1413 private void fixFocusableAndClickableSettings() { 1414 if (mMovement != null || (mEditor != null && getEditor().mKeyListener != null)) { 1415 setFocusable(true); 1416 setClickable(true); 1417 setLongClickable(true); 1418 } else { 1419 setFocusable(false); 1420 setClickable(false); 1421 setLongClickable(false); 1422 } 1423 } 1424 1425 /** 1426 * @return the current transformation method for this TextView. 1427 * This will frequently be null except for single-line and password 1428 * fields. 1429 */ 1430 public final TransformationMethod getTransformationMethod() { 1431 return mTransformation; 1432 } 1433 1434 /** 1435 * Sets the transformation that is applied to the text that this 1436 * TextView is displaying. 1437 * 1438 * @attr ref android.R.styleable#TextView_password 1439 * @attr ref android.R.styleable#TextView_singleLine 1440 */ 1441 public final void setTransformationMethod(TransformationMethod method) { 1442 if (method == mTransformation) { 1443 // Avoid the setText() below if the transformation is 1444 // the same. 1445 return; 1446 } 1447 if (mTransformation != null) { 1448 if (mText instanceof Spannable) { 1449 ((Spannable) mText).removeSpan(mTransformation); 1450 } 1451 } 1452 1453 mTransformation = method; 1454 1455 if (method instanceof TransformationMethod2) { 1456 TransformationMethod2 method2 = (TransformationMethod2) method; 1457 mAllowTransformationLengthChange = !isTextSelectable() && !(mText instanceof Editable); 1458 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 1459 } else { 1460 mAllowTransformationLengthChange = false; 1461 } 1462 1463 setText(mText); 1464 } 1465 1466 /** 1467 * Returns the top padding of the view, plus space for the top 1468 * Drawable if any. 1469 */ 1470 public int getCompoundPaddingTop() { 1471 final Drawables dr = mDrawables; 1472 if (dr == null || dr.mDrawableTop == null) { 1473 return mPaddingTop; 1474 } else { 1475 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1476 } 1477 } 1478 1479 /** 1480 * Returns the bottom padding of the view, plus space for the bottom 1481 * Drawable if any. 1482 */ 1483 public int getCompoundPaddingBottom() { 1484 final Drawables dr = mDrawables; 1485 if (dr == null || dr.mDrawableBottom == null) { 1486 return mPaddingBottom; 1487 } else { 1488 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1489 } 1490 } 1491 1492 /** 1493 * Returns the left padding of the view, plus space for the left 1494 * Drawable if any. 1495 */ 1496 public int getCompoundPaddingLeft() { 1497 final Drawables dr = mDrawables; 1498 if (dr == null || dr.mDrawableLeft == null) { 1499 return mPaddingLeft; 1500 } else { 1501 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1502 } 1503 } 1504 1505 /** 1506 * Returns the right padding of the view, plus space for the right 1507 * Drawable if any. 1508 */ 1509 public int getCompoundPaddingRight() { 1510 final Drawables dr = mDrawables; 1511 if (dr == null || dr.mDrawableRight == null) { 1512 return mPaddingRight; 1513 } else { 1514 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1515 } 1516 } 1517 1518 /** 1519 * Returns the start padding of the view, plus space for the start 1520 * Drawable if any. 1521 * 1522 * @hide 1523 */ 1524 public int getCompoundPaddingStart() { 1525 resolveDrawables(); 1526 switch(getResolvedLayoutDirection()) { 1527 default: 1528 case LAYOUT_DIRECTION_LTR: 1529 return getCompoundPaddingLeft(); 1530 case LAYOUT_DIRECTION_RTL: 1531 return getCompoundPaddingRight(); 1532 } 1533 } 1534 1535 /** 1536 * Returns the end padding of the view, plus space for the end 1537 * Drawable if any. 1538 * 1539 * @hide 1540 */ 1541 public int getCompoundPaddingEnd() { 1542 resolveDrawables(); 1543 switch(getResolvedLayoutDirection()) { 1544 default: 1545 case LAYOUT_DIRECTION_LTR: 1546 return getCompoundPaddingRight(); 1547 case LAYOUT_DIRECTION_RTL: 1548 return getCompoundPaddingLeft(); 1549 } 1550 } 1551 1552 /** 1553 * Returns the extended top padding of the view, including both the 1554 * top Drawable if any and any extra space to keep more than maxLines 1555 * of text from showing. It is only valid to call this after measuring. 1556 */ 1557 public int getExtendedPaddingTop() { 1558 if (mMaxMode != LINES) { 1559 return getCompoundPaddingTop(); 1560 } 1561 1562 if (mLayout.getLineCount() <= mMaximum) { 1563 return getCompoundPaddingTop(); 1564 } 1565 1566 int top = getCompoundPaddingTop(); 1567 int bottom = getCompoundPaddingBottom(); 1568 int viewht = getHeight() - top - bottom; 1569 int layoutht = mLayout.getLineTop(mMaximum); 1570 1571 if (layoutht >= viewht) { 1572 return top; 1573 } 1574 1575 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1576 if (gravity == Gravity.TOP) { 1577 return top; 1578 } else if (gravity == Gravity.BOTTOM) { 1579 return top + viewht - layoutht; 1580 } else { // (gravity == Gravity.CENTER_VERTICAL) 1581 return top + (viewht - layoutht) / 2; 1582 } 1583 } 1584 1585 /** 1586 * Returns the extended bottom padding of the view, including both the 1587 * bottom Drawable if any and any extra space to keep more than maxLines 1588 * of text from showing. It is only valid to call this after measuring. 1589 */ 1590 public int getExtendedPaddingBottom() { 1591 if (mMaxMode != LINES) { 1592 return getCompoundPaddingBottom(); 1593 } 1594 1595 if (mLayout.getLineCount() <= mMaximum) { 1596 return getCompoundPaddingBottom(); 1597 } 1598 1599 int top = getCompoundPaddingTop(); 1600 int bottom = getCompoundPaddingBottom(); 1601 int viewht = getHeight() - top - bottom; 1602 int layoutht = mLayout.getLineTop(mMaximum); 1603 1604 if (layoutht >= viewht) { 1605 return bottom; 1606 } 1607 1608 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1609 if (gravity == Gravity.TOP) { 1610 return bottom + viewht - layoutht; 1611 } else if (gravity == Gravity.BOTTOM) { 1612 return bottom; 1613 } else { // (gravity == Gravity.CENTER_VERTICAL) 1614 return bottom + (viewht - layoutht) / 2; 1615 } 1616 } 1617 1618 /** 1619 * Returns the total left padding of the view, including the left 1620 * Drawable if any. 1621 */ 1622 public int getTotalPaddingLeft() { 1623 return getCompoundPaddingLeft(); 1624 } 1625 1626 /** 1627 * Returns the total right padding of the view, including the right 1628 * Drawable if any. 1629 */ 1630 public int getTotalPaddingRight() { 1631 return getCompoundPaddingRight(); 1632 } 1633 1634 /** 1635 * Returns the total start padding of the view, including the start 1636 * Drawable if any. 1637 * 1638 * @hide 1639 */ 1640 public int getTotalPaddingStart() { 1641 return getCompoundPaddingStart(); 1642 } 1643 1644 /** 1645 * Returns the total end padding of the view, including the end 1646 * Drawable if any. 1647 * 1648 * @hide 1649 */ 1650 public int getTotalPaddingEnd() { 1651 return getCompoundPaddingEnd(); 1652 } 1653 1654 /** 1655 * Returns the total top padding of the view, including the top 1656 * Drawable if any, the extra space to keep more than maxLines 1657 * from showing, and the vertical offset for gravity, if any. 1658 */ 1659 public int getTotalPaddingTop() { 1660 return getExtendedPaddingTop() + getVerticalOffset(true); 1661 } 1662 1663 /** 1664 * Returns the total bottom padding of the view, including the bottom 1665 * Drawable if any, the extra space to keep more than maxLines 1666 * from showing, and the vertical offset for gravity, if any. 1667 */ 1668 public int getTotalPaddingBottom() { 1669 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1670 } 1671 1672 /** 1673 * Sets the Drawables (if any) to appear to the left of, above, 1674 * to the right of, and below the text. Use null if you do not 1675 * want a Drawable there. The Drawables must already have had 1676 * {@link Drawable#setBounds} called. 1677 * 1678 * @attr ref android.R.styleable#TextView_drawableLeft 1679 * @attr ref android.R.styleable#TextView_drawableTop 1680 * @attr ref android.R.styleable#TextView_drawableRight 1681 * @attr ref android.R.styleable#TextView_drawableBottom 1682 */ 1683 public void setCompoundDrawables(Drawable left, Drawable top, 1684 Drawable right, Drawable bottom) { 1685 Drawables dr = mDrawables; 1686 1687 final boolean drawables = left != null || top != null 1688 || right != null || bottom != null; 1689 1690 if (!drawables) { 1691 // Clearing drawables... can we free the data structure? 1692 if (dr != null) { 1693 if (dr.mDrawablePadding == 0) { 1694 mDrawables = null; 1695 } else { 1696 // We need to retain the last set padding, so just clear 1697 // out all of the fields in the existing structure. 1698 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1699 dr.mDrawableLeft = null; 1700 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1701 dr.mDrawableTop = null; 1702 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1703 dr.mDrawableRight = null; 1704 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1705 dr.mDrawableBottom = null; 1706 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1707 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1708 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1709 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1710 } 1711 } 1712 } else { 1713 if (dr == null) { 1714 mDrawables = dr = new Drawables(); 1715 } 1716 1717 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1718 dr.mDrawableLeft.setCallback(null); 1719 } 1720 dr.mDrawableLeft = left; 1721 1722 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1723 dr.mDrawableTop.setCallback(null); 1724 } 1725 dr.mDrawableTop = top; 1726 1727 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1728 dr.mDrawableRight.setCallback(null); 1729 } 1730 dr.mDrawableRight = right; 1731 1732 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1733 dr.mDrawableBottom.setCallback(null); 1734 } 1735 dr.mDrawableBottom = bottom; 1736 1737 final Rect compoundRect = dr.mCompoundRect; 1738 int[] state; 1739 1740 state = getDrawableState(); 1741 1742 if (left != null) { 1743 left.setState(state); 1744 left.copyBounds(compoundRect); 1745 left.setCallback(this); 1746 dr.mDrawableSizeLeft = compoundRect.width(); 1747 dr.mDrawableHeightLeft = compoundRect.height(); 1748 } else { 1749 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1750 } 1751 1752 if (right != null) { 1753 right.setState(state); 1754 right.copyBounds(compoundRect); 1755 right.setCallback(this); 1756 dr.mDrawableSizeRight = compoundRect.width(); 1757 dr.mDrawableHeightRight = compoundRect.height(); 1758 } else { 1759 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1760 } 1761 1762 if (top != null) { 1763 top.setState(state); 1764 top.copyBounds(compoundRect); 1765 top.setCallback(this); 1766 dr.mDrawableSizeTop = compoundRect.height(); 1767 dr.mDrawableWidthTop = compoundRect.width(); 1768 } else { 1769 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1770 } 1771 1772 if (bottom != null) { 1773 bottom.setState(state); 1774 bottom.copyBounds(compoundRect); 1775 bottom.setCallback(this); 1776 dr.mDrawableSizeBottom = compoundRect.height(); 1777 dr.mDrawableWidthBottom = compoundRect.width(); 1778 } else { 1779 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1780 } 1781 } 1782 1783 invalidate(); 1784 requestLayout(); 1785 } 1786 1787 /** 1788 * Sets the Drawables (if any) to appear to the left of, above, 1789 * to the right of, and below the text. Use 0 if you do not 1790 * want a Drawable there. The Drawables' bounds will be set to 1791 * their intrinsic bounds. 1792 * 1793 * @param left Resource identifier of the left Drawable. 1794 * @param top Resource identifier of the top Drawable. 1795 * @param right Resource identifier of the right Drawable. 1796 * @param bottom Resource identifier of the bottom Drawable. 1797 * 1798 * @attr ref android.R.styleable#TextView_drawableLeft 1799 * @attr ref android.R.styleable#TextView_drawableTop 1800 * @attr ref android.R.styleable#TextView_drawableRight 1801 * @attr ref android.R.styleable#TextView_drawableBottom 1802 */ 1803 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1804 final Resources resources = getContext().getResources(); 1805 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1806 top != 0 ? resources.getDrawable(top) : null, 1807 right != 0 ? resources.getDrawable(right) : null, 1808 bottom != 0 ? resources.getDrawable(bottom) : null); 1809 } 1810 1811 /** 1812 * Sets the Drawables (if any) to appear to the left of, above, 1813 * to the right of, and below the text. Use null if you do not 1814 * want a Drawable there. The Drawables' bounds will be set to 1815 * their intrinsic bounds. 1816 * 1817 * @attr ref android.R.styleable#TextView_drawableLeft 1818 * @attr ref android.R.styleable#TextView_drawableTop 1819 * @attr ref android.R.styleable#TextView_drawableRight 1820 * @attr ref android.R.styleable#TextView_drawableBottom 1821 */ 1822 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1823 Drawable right, Drawable bottom) { 1824 1825 if (left != null) { 1826 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1827 } 1828 if (right != null) { 1829 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1830 } 1831 if (top != null) { 1832 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1833 } 1834 if (bottom != null) { 1835 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1836 } 1837 setCompoundDrawables(left, top, right, bottom); 1838 } 1839 1840 /** 1841 * Sets the Drawables (if any) to appear to the start of, above, 1842 * to the end of, and below the text. Use null if you do not 1843 * want a Drawable there. The Drawables must already have had 1844 * {@link Drawable#setBounds} called. 1845 * 1846 * @attr ref android.R.styleable#TextView_drawableStart 1847 * @attr ref android.R.styleable#TextView_drawableTop 1848 * @attr ref android.R.styleable#TextView_drawableEnd 1849 * @attr ref android.R.styleable#TextView_drawableBottom 1850 * 1851 * @hide 1852 */ 1853 public void setCompoundDrawablesRelative(Drawable start, Drawable top, 1854 Drawable end, Drawable bottom) { 1855 Drawables dr = mDrawables; 1856 1857 final boolean drawables = start != null || top != null 1858 || end != null || bottom != null; 1859 1860 if (!drawables) { 1861 // Clearing drawables... can we free the data structure? 1862 if (dr != null) { 1863 if (dr.mDrawablePadding == 0) { 1864 mDrawables = null; 1865 } else { 1866 // We need to retain the last set padding, so just clear 1867 // out all of the fields in the existing structure. 1868 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 1869 dr.mDrawableStart = null; 1870 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1871 dr.mDrawableTop = null; 1872 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 1873 dr.mDrawableEnd = null; 1874 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1875 dr.mDrawableBottom = null; 1876 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1877 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1878 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1879 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1880 } 1881 } 1882 } else { 1883 if (dr == null) { 1884 mDrawables = dr = new Drawables(); 1885 } 1886 1887 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 1888 dr.mDrawableStart.setCallback(null); 1889 } 1890 dr.mDrawableStart = start; 1891 1892 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1893 dr.mDrawableTop.setCallback(null); 1894 } 1895 dr.mDrawableTop = top; 1896 1897 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 1898 dr.mDrawableEnd.setCallback(null); 1899 } 1900 dr.mDrawableEnd = end; 1901 1902 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1903 dr.mDrawableBottom.setCallback(null); 1904 } 1905 dr.mDrawableBottom = bottom; 1906 1907 final Rect compoundRect = dr.mCompoundRect; 1908 int[] state; 1909 1910 state = getDrawableState(); 1911 1912 if (start != null) { 1913 start.setState(state); 1914 start.copyBounds(compoundRect); 1915 start.setCallback(this); 1916 dr.mDrawableSizeStart = compoundRect.width(); 1917 dr.mDrawableHeightStart = compoundRect.height(); 1918 } else { 1919 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1920 } 1921 1922 if (end != null) { 1923 end.setState(state); 1924 end.copyBounds(compoundRect); 1925 end.setCallback(this); 1926 dr.mDrawableSizeEnd = compoundRect.width(); 1927 dr.mDrawableHeightEnd = compoundRect.height(); 1928 } else { 1929 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1930 } 1931 1932 if (top != null) { 1933 top.setState(state); 1934 top.copyBounds(compoundRect); 1935 top.setCallback(this); 1936 dr.mDrawableSizeTop = compoundRect.height(); 1937 dr.mDrawableWidthTop = compoundRect.width(); 1938 } else { 1939 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1940 } 1941 1942 if (bottom != null) { 1943 bottom.setState(state); 1944 bottom.copyBounds(compoundRect); 1945 bottom.setCallback(this); 1946 dr.mDrawableSizeBottom = compoundRect.height(); 1947 dr.mDrawableWidthBottom = compoundRect.width(); 1948 } else { 1949 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1950 } 1951 } 1952 1953 resolveDrawables(); 1954 invalidate(); 1955 requestLayout(); 1956 } 1957 1958 /** 1959 * Sets the Drawables (if any) to appear to the start of, above, 1960 * to the end of, and below the text. Use 0 if you do not 1961 * want a Drawable there. The Drawables' bounds will be set to 1962 * their intrinsic bounds. 1963 * 1964 * @param start Resource identifier of the start Drawable. 1965 * @param top Resource identifier of the top Drawable. 1966 * @param end Resource identifier of the end Drawable. 1967 * @param bottom Resource identifier of the bottom Drawable. 1968 * 1969 * @attr ref android.R.styleable#TextView_drawableStart 1970 * @attr ref android.R.styleable#TextView_drawableTop 1971 * @attr ref android.R.styleable#TextView_drawableEnd 1972 * @attr ref android.R.styleable#TextView_drawableBottom 1973 * 1974 * @hide 1975 */ 1976 public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end, 1977 int bottom) { 1978 resetResolvedDrawables(); 1979 final Resources resources = getContext().getResources(); 1980 setCompoundDrawablesRelativeWithIntrinsicBounds( 1981 start != 0 ? resources.getDrawable(start) : null, 1982 top != 0 ? resources.getDrawable(top) : null, 1983 end != 0 ? resources.getDrawable(end) : null, 1984 bottom != 0 ? resources.getDrawable(bottom) : null); 1985 } 1986 1987 /** 1988 * Sets the Drawables (if any) to appear to the start of, above, 1989 * to the end of, and below the text. Use null if you do not 1990 * want a Drawable there. The Drawables' bounds will be set to 1991 * their intrinsic bounds. 1992 * 1993 * @attr ref android.R.styleable#TextView_drawableStart 1994 * @attr ref android.R.styleable#TextView_drawableTop 1995 * @attr ref android.R.styleable#TextView_drawableEnd 1996 * @attr ref android.R.styleable#TextView_drawableBottom 1997 * 1998 * @hide 1999 */ 2000 public void setCompoundDrawablesRelativeWithIntrinsicBounds(Drawable start, Drawable top, 2001 Drawable end, Drawable bottom) { 2002 2003 resetResolvedDrawables(); 2004 if (start != null) { 2005 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 2006 } 2007 if (end != null) { 2008 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 2009 } 2010 if (top != null) { 2011 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2012 } 2013 if (bottom != null) { 2014 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2015 } 2016 setCompoundDrawablesRelative(start, top, end, bottom); 2017 } 2018 2019 /** 2020 * Returns drawables for the left, top, right, and bottom borders. 2021 */ 2022 public Drawable[] getCompoundDrawables() { 2023 final Drawables dr = mDrawables; 2024 if (dr != null) { 2025 return new Drawable[] { 2026 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 2027 }; 2028 } else { 2029 return new Drawable[] { null, null, null, null }; 2030 } 2031 } 2032 2033 /** 2034 * Returns drawables for the start, top, end, and bottom borders. 2035 * 2036 * @hide 2037 */ 2038 public Drawable[] getCompoundDrawablesRelative() { 2039 final Drawables dr = mDrawables; 2040 if (dr != null) { 2041 return new Drawable[] { 2042 dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom 2043 }; 2044 } else { 2045 return new Drawable[] { null, null, null, null }; 2046 } 2047 } 2048 2049 /** 2050 * Sets the size of the padding between the compound drawables and 2051 * the text. 2052 * 2053 * @attr ref android.R.styleable#TextView_drawablePadding 2054 */ 2055 public void setCompoundDrawablePadding(int pad) { 2056 Drawables dr = mDrawables; 2057 if (pad == 0) { 2058 if (dr != null) { 2059 dr.mDrawablePadding = pad; 2060 } 2061 } else { 2062 if (dr == null) { 2063 mDrawables = dr = new Drawables(); 2064 } 2065 dr.mDrawablePadding = pad; 2066 } 2067 2068 invalidate(); 2069 requestLayout(); 2070 } 2071 2072 /** 2073 * Returns the padding between the compound drawables and the text. 2074 */ 2075 public int getCompoundDrawablePadding() { 2076 final Drawables dr = mDrawables; 2077 return dr != null ? dr.mDrawablePadding : 0; 2078 } 2079 2080 @Override 2081 public void setPadding(int left, int top, int right, int bottom) { 2082 if (left != mPaddingLeft || 2083 right != mPaddingRight || 2084 top != mPaddingTop || 2085 bottom != mPaddingBottom) { 2086 nullLayouts(); 2087 } 2088 2089 // the super call will requestLayout() 2090 super.setPadding(left, top, right, bottom); 2091 invalidate(); 2092 } 2093 2094 /** 2095 * Gets the autolink mask of the text. See {@link 2096 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2097 * possible values. 2098 * 2099 * @attr ref android.R.styleable#TextView_autoLink 2100 */ 2101 public final int getAutoLinkMask() { 2102 return mAutoLinkMask; 2103 } 2104 2105 /** 2106 * Sets the text color, size, style, hint color, and highlight color 2107 * from the specified TextAppearance resource. 2108 */ 2109 public void setTextAppearance(Context context, int resid) { 2110 TypedArray appearance = 2111 context.obtainStyledAttributes(resid, 2112 com.android.internal.R.styleable.TextAppearance); 2113 2114 int color; 2115 ColorStateList colors; 2116 int ts; 2117 2118 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 2119 if (color != 0) { 2120 setHighlightColor(color); 2121 } 2122 2123 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2124 TextAppearance_textColor); 2125 if (colors != null) { 2126 setTextColor(colors); 2127 } 2128 2129 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 2130 TextAppearance_textSize, 0); 2131 if (ts != 0) { 2132 setRawTextSize(ts); 2133 } 2134 2135 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2136 TextAppearance_textColorHint); 2137 if (colors != null) { 2138 setHintTextColor(colors); 2139 } 2140 2141 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2142 TextAppearance_textColorLink); 2143 if (colors != null) { 2144 setLinkTextColor(colors); 2145 } 2146 2147 int typefaceIndex, styleIndex; 2148 2149 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 2150 TextAppearance_typeface, -1); 2151 styleIndex = appearance.getInt(com.android.internal.R.styleable. 2152 TextAppearance_textStyle, -1); 2153 2154 setTypefaceByIndex(typefaceIndex, styleIndex); 2155 2156 if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps, 2157 false)) { 2158 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 2159 } 2160 2161 appearance.recycle(); 2162 } 2163 2164 /** 2165 * @return the size (in pixels) of the default text size in this TextView. 2166 */ 2167 public float getTextSize() { 2168 return mTextPaint.getTextSize(); 2169 } 2170 2171 /** 2172 * Set the default text size to the given value, interpreted as "scaled 2173 * pixel" units. This size is adjusted based on the current density and 2174 * user font size preference. 2175 * 2176 * @param size The scaled pixel size. 2177 * 2178 * @attr ref android.R.styleable#TextView_textSize 2179 */ 2180 @android.view.RemotableViewMethod 2181 public void setTextSize(float size) { 2182 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 2183 } 2184 2185 /** 2186 * Set the default text size to a given unit and value. See {@link 2187 * TypedValue} for the possible dimension units. 2188 * 2189 * @param unit The desired dimension unit. 2190 * @param size The desired size in the given units. 2191 * 2192 * @attr ref android.R.styleable#TextView_textSize 2193 */ 2194 public void setTextSize(int unit, float size) { 2195 Context c = getContext(); 2196 Resources r; 2197 2198 if (c == null) 2199 r = Resources.getSystem(); 2200 else 2201 r = c.getResources(); 2202 2203 setRawTextSize(TypedValue.applyDimension( 2204 unit, size, r.getDisplayMetrics())); 2205 } 2206 2207 private void setRawTextSize(float size) { 2208 if (size != mTextPaint.getTextSize()) { 2209 mTextPaint.setTextSize(size); 2210 2211 if (mLayout != null) { 2212 nullLayouts(); 2213 requestLayout(); 2214 invalidate(); 2215 } 2216 } 2217 } 2218 2219 /** 2220 * @return the extent by which text is currently being stretched 2221 * horizontally. This will usually be 1. 2222 */ 2223 public float getTextScaleX() { 2224 return mTextPaint.getTextScaleX(); 2225 } 2226 2227 /** 2228 * Sets the extent by which text should be stretched horizontally. 2229 * 2230 * @attr ref android.R.styleable#TextView_textScaleX 2231 */ 2232 @android.view.RemotableViewMethod 2233 public void setTextScaleX(float size) { 2234 if (size != mTextPaint.getTextScaleX()) { 2235 mUserSetTextScaleX = true; 2236 mTextPaint.setTextScaleX(size); 2237 2238 if (mLayout != null) { 2239 nullLayouts(); 2240 requestLayout(); 2241 invalidate(); 2242 } 2243 } 2244 } 2245 2246 /** 2247 * Sets the typeface and style in which the text should be displayed. 2248 * Note that not all Typeface families actually have bold and italic 2249 * variants, so you may need to use 2250 * {@link #setTypeface(Typeface, int)} to get the appearance 2251 * that you actually want. 2252 * 2253 * @attr ref android.R.styleable#TextView_typeface 2254 * @attr ref android.R.styleable#TextView_textStyle 2255 */ 2256 public void setTypeface(Typeface tf) { 2257 if (mTextPaint.getTypeface() != tf) { 2258 mTextPaint.setTypeface(tf); 2259 2260 if (mLayout != null) { 2261 nullLayouts(); 2262 requestLayout(); 2263 invalidate(); 2264 } 2265 } 2266 } 2267 2268 /** 2269 * @return the current typeface and style in which the text is being 2270 * displayed. 2271 */ 2272 public Typeface getTypeface() { 2273 return mTextPaint.getTypeface(); 2274 } 2275 2276 /** 2277 * Sets the text color for all the states (normal, selected, 2278 * focused) to be this color. 2279 * 2280 * @attr ref android.R.styleable#TextView_textColor 2281 */ 2282 @android.view.RemotableViewMethod 2283 public void setTextColor(int color) { 2284 mTextColor = ColorStateList.valueOf(color); 2285 updateTextColors(); 2286 } 2287 2288 /** 2289 * Sets the text color. 2290 * 2291 * @attr ref android.R.styleable#TextView_textColor 2292 */ 2293 public void setTextColor(ColorStateList colors) { 2294 if (colors == null) { 2295 throw new NullPointerException(); 2296 } 2297 2298 mTextColor = colors; 2299 updateTextColors(); 2300 } 2301 2302 /** 2303 * Return the set of text colors. 2304 * 2305 * @return Returns the set of text colors. 2306 */ 2307 public final ColorStateList getTextColors() { 2308 return mTextColor; 2309 } 2310 2311 /** 2312 * <p>Return the current color selected for normal text.</p> 2313 * 2314 * @return Returns the current text color. 2315 */ 2316 public final int getCurrentTextColor() { 2317 return mCurTextColor; 2318 } 2319 2320 /** 2321 * Sets the color used to display the selection highlight. 2322 * 2323 * @attr ref android.R.styleable#TextView_textColorHighlight 2324 */ 2325 @android.view.RemotableViewMethod 2326 public void setHighlightColor(int color) { 2327 if (mHighlightColor != color) { 2328 mHighlightColor = color; 2329 if (mEditor != null) getEditor().mTextDisplayListIsValid = false; 2330 invalidate(); 2331 } 2332 } 2333 2334 /** 2335 * Gives the text a shadow of the specified radius and color, the specified 2336 * distance from its normal position. 2337 * 2338 * @attr ref android.R.styleable#TextView_shadowColor 2339 * @attr ref android.R.styleable#TextView_shadowDx 2340 * @attr ref android.R.styleable#TextView_shadowDy 2341 * @attr ref android.R.styleable#TextView_shadowRadius 2342 */ 2343 public void setShadowLayer(float radius, float dx, float dy, int color) { 2344 mTextPaint.setShadowLayer(radius, dx, dy, color); 2345 2346 mShadowRadius = radius; 2347 mShadowDx = dx; 2348 mShadowDy = dy; 2349 2350 if (mEditor != null) getEditor().mTextDisplayListIsValid = false; 2351 invalidate(); 2352 } 2353 2354 /** 2355 * @return the base paint used for the text. Please use this only to 2356 * consult the Paint's properties and not to change them. 2357 */ 2358 public TextPaint getPaint() { 2359 return mTextPaint; 2360 } 2361 2362 /** 2363 * Sets the autolink mask of the text. See {@link 2364 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2365 * possible values. 2366 * 2367 * @attr ref android.R.styleable#TextView_autoLink 2368 */ 2369 @android.view.RemotableViewMethod 2370 public final void setAutoLinkMask(int mask) { 2371 mAutoLinkMask = mask; 2372 } 2373 2374 /** 2375 * Sets whether the movement method will automatically be set to 2376 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2377 * set to nonzero and links are detected in {@link #setText}. 2378 * The default is true. 2379 * 2380 * @attr ref android.R.styleable#TextView_linksClickable 2381 */ 2382 @android.view.RemotableViewMethod 2383 public final void setLinksClickable(boolean whether) { 2384 mLinksClickable = whether; 2385 } 2386 2387 /** 2388 * Returns whether the movement method will automatically be set to 2389 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2390 * set to nonzero and links are detected in {@link #setText}. 2391 * The default is true. 2392 * 2393 * @attr ref android.R.styleable#TextView_linksClickable 2394 */ 2395 public final boolean getLinksClickable() { 2396 return mLinksClickable; 2397 } 2398 2399 /** 2400 * Returns the list of URLSpans attached to the text 2401 * (by {@link Linkify} or otherwise) if any. You can call 2402 * {@link URLSpan#getURL} on them to find where they link to 2403 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2404 * to find the region of the text they are attached to. 2405 */ 2406 public URLSpan[] getUrls() { 2407 if (mText instanceof Spanned) { 2408 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2409 } else { 2410 return new URLSpan[0]; 2411 } 2412 } 2413 2414 /** 2415 * Sets the color of the hint text. 2416 * 2417 * @attr ref android.R.styleable#TextView_textColorHint 2418 */ 2419 @android.view.RemotableViewMethod 2420 public final void setHintTextColor(int color) { 2421 mHintTextColor = ColorStateList.valueOf(color); 2422 updateTextColors(); 2423 } 2424 2425 /** 2426 * Sets the color of the hint text. 2427 * 2428 * @attr ref android.R.styleable#TextView_textColorHint 2429 */ 2430 public final void setHintTextColor(ColorStateList colors) { 2431 mHintTextColor = colors; 2432 updateTextColors(); 2433 } 2434 2435 /** 2436 * <p>Return the color used to paint the hint text.</p> 2437 * 2438 * @return Returns the list of hint text colors. 2439 */ 2440 public final ColorStateList getHintTextColors() { 2441 return mHintTextColor; 2442 } 2443 2444 /** 2445 * <p>Return the current color selected to paint the hint text.</p> 2446 * 2447 * @return Returns the current hint text color. 2448 */ 2449 public final int getCurrentHintTextColor() { 2450 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2451 } 2452 2453 /** 2454 * Sets the color of links in the text. 2455 * 2456 * @attr ref android.R.styleable#TextView_textColorLink 2457 */ 2458 @android.view.RemotableViewMethod 2459 public final void setLinkTextColor(int color) { 2460 mLinkTextColor = ColorStateList.valueOf(color); 2461 updateTextColors(); 2462 } 2463 2464 /** 2465 * Sets the color of links in the text. 2466 * 2467 * @attr ref android.R.styleable#TextView_textColorLink 2468 */ 2469 public final void setLinkTextColor(ColorStateList colors) { 2470 mLinkTextColor = colors; 2471 updateTextColors(); 2472 } 2473 2474 /** 2475 * <p>Returns the color used to paint links in the text.</p> 2476 * 2477 * @return Returns the list of link text colors. 2478 */ 2479 public final ColorStateList getLinkTextColors() { 2480 return mLinkTextColor; 2481 } 2482 2483 /** 2484 * Sets the horizontal alignment of the text and the 2485 * vertical gravity that will be used when there is extra space 2486 * in the TextView beyond what is required for the text itself. 2487 * 2488 * @see android.view.Gravity 2489 * @attr ref android.R.styleable#TextView_gravity 2490 */ 2491 public void setGravity(int gravity) { 2492 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2493 gravity |= Gravity.START; 2494 } 2495 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2496 gravity |= Gravity.TOP; 2497 } 2498 2499 boolean newLayout = false; 2500 2501 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 2502 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 2503 newLayout = true; 2504 } 2505 2506 if (gravity != mGravity) { 2507 invalidate(); 2508 mLayoutAlignment = null; 2509 } 2510 2511 mGravity = gravity; 2512 2513 if (mLayout != null && newLayout) { 2514 // XXX this is heavy-handed because no actual content changes. 2515 int want = mLayout.getWidth(); 2516 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2517 2518 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2519 mRight - mLeft - getCompoundPaddingLeft() - 2520 getCompoundPaddingRight(), true); 2521 } 2522 } 2523 2524 /** 2525 * Returns the horizontal and vertical alignment of this TextView. 2526 * 2527 * @see android.view.Gravity 2528 * @attr ref android.R.styleable#TextView_gravity 2529 */ 2530 public int getGravity() { 2531 return mGravity; 2532 } 2533 2534 /** 2535 * @return the flags on the Paint being used to display the text. 2536 * @see Paint#getFlags 2537 */ 2538 public int getPaintFlags() { 2539 return mTextPaint.getFlags(); 2540 } 2541 2542 /** 2543 * Sets flags on the Paint being used to display the text and 2544 * reflows the text if they are different from the old flags. 2545 * @see Paint#setFlags 2546 */ 2547 @android.view.RemotableViewMethod 2548 public void setPaintFlags(int flags) { 2549 if (mTextPaint.getFlags() != flags) { 2550 mTextPaint.setFlags(flags); 2551 2552 if (mLayout != null) { 2553 nullLayouts(); 2554 requestLayout(); 2555 invalidate(); 2556 } 2557 } 2558 } 2559 2560 /** 2561 * Sets whether the text should be allowed to be wider than the 2562 * View is. If false, it will be wrapped to the width of the View. 2563 * 2564 * @attr ref android.R.styleable#TextView_scrollHorizontally 2565 */ 2566 public void setHorizontallyScrolling(boolean whether) { 2567 if (mHorizontallyScrolling != whether) { 2568 mHorizontallyScrolling = whether; 2569 2570 if (mLayout != null) { 2571 nullLayouts(); 2572 requestLayout(); 2573 invalidate(); 2574 } 2575 } 2576 } 2577 2578 /** 2579 * Returns whether the text is allowed to be wider than the View is. 2580 * If false, the text will be wrapped to the width of the View. 2581 * 2582 * @attr ref android.R.styleable#TextView_scrollHorizontally 2583 * @hide 2584 */ 2585 public boolean getHorizontallyScrolling() { 2586 return mHorizontallyScrolling; 2587 } 2588 2589 /** 2590 * Makes the TextView at least this many lines tall. 2591 * 2592 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2593 * set this value to 1. 2594 * 2595 * @attr ref android.R.styleable#TextView_minLines 2596 */ 2597 @android.view.RemotableViewMethod 2598 public void setMinLines(int minlines) { 2599 mMinimum = minlines; 2600 mMinMode = LINES; 2601 2602 requestLayout(); 2603 invalidate(); 2604 } 2605 2606 /** 2607 * Makes the TextView at least this many pixels tall. 2608 * 2609 * Setting this value overrides any other (minimum) number of lines setting. 2610 * 2611 * @attr ref android.R.styleable#TextView_minHeight 2612 */ 2613 @android.view.RemotableViewMethod 2614 public void setMinHeight(int minHeight) { 2615 mMinimum = minHeight; 2616 mMinMode = PIXELS; 2617 2618 requestLayout(); 2619 invalidate(); 2620 } 2621 2622 /** 2623 * Makes the TextView at most this many lines tall. 2624 * 2625 * Setting this value overrides any other (maximum) height setting. 2626 * 2627 * @attr ref android.R.styleable#TextView_maxLines 2628 */ 2629 @android.view.RemotableViewMethod 2630 public void setMaxLines(int maxlines) { 2631 mMaximum = maxlines; 2632 mMaxMode = LINES; 2633 2634 requestLayout(); 2635 invalidate(); 2636 } 2637 2638 /** 2639 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2640 * {@link #setMaxLines(int)} method. 2641 * 2642 * Setting this value overrides any other (maximum) number of lines setting. 2643 * 2644 * @attr ref android.R.styleable#TextView_maxHeight 2645 */ 2646 @android.view.RemotableViewMethod 2647 public void setMaxHeight(int maxHeight) { 2648 mMaximum = maxHeight; 2649 mMaxMode = PIXELS; 2650 2651 requestLayout(); 2652 invalidate(); 2653 } 2654 2655 /** 2656 * Makes the TextView exactly this many lines tall. 2657 * 2658 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2659 * height setting. A single line TextView will set this value to 1. 2660 * 2661 * @attr ref android.R.styleable#TextView_lines 2662 */ 2663 @android.view.RemotableViewMethod 2664 public void setLines(int lines) { 2665 mMaximum = mMinimum = lines; 2666 mMaxMode = mMinMode = LINES; 2667 2668 requestLayout(); 2669 invalidate(); 2670 } 2671 2672 /** 2673 * Makes the TextView exactly this many pixels tall. 2674 * You could do the same thing by specifying this number in the 2675 * LayoutParams. 2676 * 2677 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2678 * height setting. 2679 * 2680 * @attr ref android.R.styleable#TextView_height 2681 */ 2682 @android.view.RemotableViewMethod 2683 public void setHeight(int pixels) { 2684 mMaximum = mMinimum = pixels; 2685 mMaxMode = mMinMode = PIXELS; 2686 2687 requestLayout(); 2688 invalidate(); 2689 } 2690 2691 /** 2692 * Makes the TextView at least this many ems wide 2693 * 2694 * @attr ref android.R.styleable#TextView_minEms 2695 */ 2696 @android.view.RemotableViewMethod 2697 public void setMinEms(int minems) { 2698 mMinWidth = minems; 2699 mMinWidthMode = EMS; 2700 2701 requestLayout(); 2702 invalidate(); 2703 } 2704 2705 /** 2706 * Makes the TextView at least this many pixels wide 2707 * 2708 * @attr ref android.R.styleable#TextView_minWidth 2709 */ 2710 @android.view.RemotableViewMethod 2711 public void setMinWidth(int minpixels) { 2712 mMinWidth = minpixels; 2713 mMinWidthMode = PIXELS; 2714 2715 requestLayout(); 2716 invalidate(); 2717 } 2718 2719 /** 2720 * Makes the TextView at most this many ems wide 2721 * 2722 * @attr ref android.R.styleable#TextView_maxEms 2723 */ 2724 @android.view.RemotableViewMethod 2725 public void setMaxEms(int maxems) { 2726 mMaxWidth = maxems; 2727 mMaxWidthMode = EMS; 2728 2729 requestLayout(); 2730 invalidate(); 2731 } 2732 2733 /** 2734 * Makes the TextView at most this many pixels wide 2735 * 2736 * @attr ref android.R.styleable#TextView_maxWidth 2737 */ 2738 @android.view.RemotableViewMethod 2739 public void setMaxWidth(int maxpixels) { 2740 mMaxWidth = maxpixels; 2741 mMaxWidthMode = PIXELS; 2742 2743 requestLayout(); 2744 invalidate(); 2745 } 2746 2747 /** 2748 * Makes the TextView exactly this many ems wide 2749 * 2750 * @attr ref android.R.styleable#TextView_ems 2751 */ 2752 @android.view.RemotableViewMethod 2753 public void setEms(int ems) { 2754 mMaxWidth = mMinWidth = ems; 2755 mMaxWidthMode = mMinWidthMode = EMS; 2756 2757 requestLayout(); 2758 invalidate(); 2759 } 2760 2761 /** 2762 * Makes the TextView exactly this many pixels wide. 2763 * You could do the same thing by specifying this number in the 2764 * LayoutParams. 2765 * 2766 * @attr ref android.R.styleable#TextView_width 2767 */ 2768 @android.view.RemotableViewMethod 2769 public void setWidth(int pixels) { 2770 mMaxWidth = mMinWidth = pixels; 2771 mMaxWidthMode = mMinWidthMode = PIXELS; 2772 2773 requestLayout(); 2774 invalidate(); 2775 } 2776 2777 2778 /** 2779 * Sets line spacing for this TextView. Each line will have its height 2780 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2781 * 2782 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2783 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2784 */ 2785 public void setLineSpacing(float add, float mult) { 2786 if (mSpacingAdd != add || mSpacingMult != mult) { 2787 mSpacingAdd = add; 2788 mSpacingMult = mult; 2789 2790 if (mLayout != null) { 2791 nullLayouts(); 2792 requestLayout(); 2793 invalidate(); 2794 } 2795 } 2796 } 2797 2798 /** 2799 * Convenience method: Append the specified text to the TextView's 2800 * display buffer, upgrading it to BufferType.EDITABLE if it was 2801 * not already editable. 2802 */ 2803 public final void append(CharSequence text) { 2804 append(text, 0, text.length()); 2805 } 2806 2807 /** 2808 * Convenience method: Append the specified text slice to the TextView's 2809 * display buffer, upgrading it to BufferType.EDITABLE if it was 2810 * not already editable. 2811 */ 2812 public void append(CharSequence text, int start, int end) { 2813 if (!(mText instanceof Editable)) { 2814 setText(mText, BufferType.EDITABLE); 2815 } 2816 2817 ((Editable) mText).append(text, start, end); 2818 } 2819 2820 private void updateTextColors() { 2821 boolean inval = false; 2822 int color = mTextColor.getColorForState(getDrawableState(), 0); 2823 if (color != mCurTextColor) { 2824 mCurTextColor = color; 2825 inval = true; 2826 } 2827 if (mLinkTextColor != null) { 2828 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2829 if (color != mTextPaint.linkColor) { 2830 mTextPaint.linkColor = color; 2831 inval = true; 2832 } 2833 } 2834 if (mHintTextColor != null) { 2835 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2836 if (color != mCurHintTextColor && mText.length() == 0) { 2837 mCurHintTextColor = color; 2838 inval = true; 2839 } 2840 } 2841 if (inval) { 2842 if (mEditor != null) getEditor().mTextDisplayListIsValid = false; 2843 invalidate(); 2844 } 2845 } 2846 2847 @Override 2848 protected void drawableStateChanged() { 2849 super.drawableStateChanged(); 2850 if (mTextColor != null && mTextColor.isStateful() 2851 || (mHintTextColor != null && mHintTextColor.isStateful()) 2852 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2853 updateTextColors(); 2854 } 2855 2856 final Drawables dr = mDrawables; 2857 if (dr != null) { 2858 int[] state = getDrawableState(); 2859 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2860 dr.mDrawableTop.setState(state); 2861 } 2862 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2863 dr.mDrawableBottom.setState(state); 2864 } 2865 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2866 dr.mDrawableLeft.setState(state); 2867 } 2868 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2869 dr.mDrawableRight.setState(state); 2870 } 2871 if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) { 2872 dr.mDrawableStart.setState(state); 2873 } 2874 if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) { 2875 dr.mDrawableEnd.setState(state); 2876 } 2877 } 2878 } 2879 2880 @Override 2881 public Parcelable onSaveInstanceState() { 2882 Parcelable superState = super.onSaveInstanceState(); 2883 2884 // Save state if we are forced to 2885 boolean save = mFreezesText; 2886 int start = 0; 2887 int end = 0; 2888 2889 if (mText != null) { 2890 start = getSelectionStart(); 2891 end = getSelectionEnd(); 2892 if (start >= 0 || end >= 0) { 2893 // Or save state if there is a selection 2894 save = true; 2895 } 2896 } 2897 2898 if (save) { 2899 SavedState ss = new SavedState(superState); 2900 // XXX Should also save the current scroll position! 2901 ss.selStart = start; 2902 ss.selEnd = end; 2903 2904 if (mText instanceof Spanned) { 2905 /* 2906 * Calling setText() strips off any ChangeWatchers; 2907 * strip them now to avoid leaking references. 2908 * But do it to a copy so that if there are any 2909 * further changes to the text of this view, it 2910 * won't get into an inconsistent state. 2911 */ 2912 2913 Spannable sp = new SpannableString(mText); 2914 2915 for (ChangeWatcher cw : sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2916 sp.removeSpan(cw); 2917 } 2918 2919 if (mEditor != null) { 2920 removeMisspelledSpans(sp); 2921 sp.removeSpan(getEditor().mSuggestionRangeSpan); 2922 } 2923 2924 ss.text = sp; 2925 } else { 2926 ss.text = mText.toString(); 2927 } 2928 2929 if (isFocused() && start >= 0 && end >= 0) { 2930 ss.frozenWithFocus = true; 2931 } 2932 2933 ss.error = getError(); 2934 2935 return ss; 2936 } 2937 2938 return superState; 2939 } 2940 2941 void removeMisspelledSpans(Spannable spannable) { 2942 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(), 2943 SuggestionSpan.class); 2944 for (int i = 0; i < suggestionSpans.length; i++) { 2945 int flags = suggestionSpans[i].getFlags(); 2946 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 2947 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 2948 spannable.removeSpan(suggestionSpans[i]); 2949 } 2950 } 2951 } 2952 2953 @Override 2954 public void onRestoreInstanceState(Parcelable state) { 2955 if (!(state instanceof SavedState)) { 2956 super.onRestoreInstanceState(state); 2957 return; 2958 } 2959 2960 SavedState ss = (SavedState)state; 2961 super.onRestoreInstanceState(ss.getSuperState()); 2962 2963 // XXX restore buffer type too, as well as lots of other stuff 2964 if (ss.text != null) { 2965 setText(ss.text); 2966 } 2967 2968 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2969 if (mText instanceof Spannable) { 2970 int len = mText.length(); 2971 2972 if (ss.selStart > len || ss.selEnd > len) { 2973 String restored = ""; 2974 2975 if (ss.text != null) { 2976 restored = "(restored) "; 2977 } 2978 2979 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2980 "/" + ss.selEnd + " out of range for " + restored + 2981 "text " + mText); 2982 } else { 2983 Selection.setSelection((Spannable) mText, ss.selStart, ss.selEnd); 2984 2985 if (ss.frozenWithFocus) { 2986 createEditorIfNeeded("restore instance with focus"); 2987 getEditor().mFrozenWithFocus = true; 2988 } 2989 } 2990 } 2991 } 2992 2993 if (ss.error != null) { 2994 final CharSequence error = ss.error; 2995 // Display the error later, after the first layout pass 2996 post(new Runnable() { 2997 public void run() { 2998 setError(error); 2999 } 3000 }); 3001 } 3002 } 3003 3004 /** 3005 * Control whether this text view saves its entire text contents when 3006 * freezing to an icicle, in addition to dynamic state such as cursor 3007 * position. By default this is false, not saving the text. Set to true 3008 * if the text in the text view is not being saved somewhere else in 3009 * persistent storage (such as in a content provider) so that if the 3010 * view is later thawed the user will not lose their data. 3011 * 3012 * @param freezesText Controls whether a frozen icicle should include the 3013 * entire text data: true to include it, false to not. 3014 * 3015 * @attr ref android.R.styleable#TextView_freezesText 3016 */ 3017 @android.view.RemotableViewMethod 3018 public void setFreezesText(boolean freezesText) { 3019 mFreezesText = freezesText; 3020 } 3021 3022 /** 3023 * Return whether this text view is including its entire text contents 3024 * in frozen icicles. 3025 * 3026 * @return Returns true if text is included, false if it isn't. 3027 * 3028 * @see #setFreezesText 3029 */ 3030 public boolean getFreezesText() { 3031 return mFreezesText; 3032 } 3033 3034 /////////////////////////////////////////////////////////////////////////// 3035 3036 /** 3037 * Sets the Factory used to create new Editables. 3038 */ 3039 public final void setEditableFactory(Editable.Factory factory) { 3040 mEditableFactory = factory; 3041 setText(mText); 3042 } 3043 3044 /** 3045 * Sets the Factory used to create new Spannables. 3046 */ 3047 public final void setSpannableFactory(Spannable.Factory factory) { 3048 mSpannableFactory = factory; 3049 setText(mText); 3050 } 3051 3052 /** 3053 * Sets the string value of the TextView. TextView <em>does not</em> accept 3054 * HTML-like formatting, which you can do with text strings in XML resource files. 3055 * To style your strings, attach android.text.style.* objects to a 3056 * {@link android.text.SpannableString SpannableString}, or see the 3057 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 3058 * Available Resource Types</a> documentation for an example of setting 3059 * formatted text in the XML resource file. 3060 * 3061 * @attr ref android.R.styleable#TextView_text 3062 */ 3063 @android.view.RemotableViewMethod 3064 public final void setText(CharSequence text) { 3065 setText(text, mBufferType); 3066 } 3067 3068 /** 3069 * Like {@link #setText(CharSequence)}, 3070 * except that the cursor position (if any) is retained in the new text. 3071 * 3072 * @param text The new text to place in the text view. 3073 * 3074 * @see #setText(CharSequence) 3075 */ 3076 @android.view.RemotableViewMethod 3077 public final void setTextKeepState(CharSequence text) { 3078 setTextKeepState(text, mBufferType); 3079 } 3080 3081 /** 3082 * Sets the text that this TextView is to display (see 3083 * {@link #setText(CharSequence)}) and also sets whether it is stored 3084 * in a styleable/spannable buffer and whether it is editable. 3085 * 3086 * @attr ref android.R.styleable#TextView_text 3087 * @attr ref android.R.styleable#TextView_bufferType 3088 */ 3089 public void setText(CharSequence text, BufferType type) { 3090 setText(text, type, true, 0); 3091 3092 if (mCharWrapper != null) { 3093 mCharWrapper.mChars = null; 3094 } 3095 } 3096 3097 private void setText(CharSequence text, BufferType type, 3098 boolean notifyBefore, int oldlen) { 3099 if (text == null) { 3100 text = ""; 3101 } 3102 3103 // If suggestions are not enabled, remove the suggestion spans from the text 3104 if (!isSuggestionsEnabled()) { 3105 text = removeSuggestionSpans(text); 3106 } 3107 3108 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 3109 3110 if (text instanceof Spanned && 3111 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 3112 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 3113 setHorizontalFadingEdgeEnabled(true); 3114 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 3115 } else { 3116 setHorizontalFadingEdgeEnabled(false); 3117 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 3118 } 3119 setEllipsize(TextUtils.TruncateAt.MARQUEE); 3120 } 3121 3122 int n = mFilters.length; 3123 for (int i = 0; i < n; i++) { 3124 CharSequence out = mFilters[i].filter(text, 0, text.length(), EMPTY_SPANNED, 0, 0); 3125 if (out != null) { 3126 text = out; 3127 } 3128 } 3129 3130 if (notifyBefore) { 3131 if (mText != null) { 3132 oldlen = mText.length(); 3133 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 3134 } else { 3135 sendBeforeTextChanged("", 0, 0, text.length()); 3136 } 3137 } 3138 3139 boolean needEditableForNotification = false; 3140 3141 if (mListeners != null && mListeners.size() != 0) { 3142 needEditableForNotification = true; 3143 } 3144 3145 if (type == BufferType.EDITABLE || getKeyListener() != null || needEditableForNotification) { 3146 createEditorIfNeeded("setText with BufferType.EDITABLE or non null mInput"); 3147 Editable t = mEditableFactory.newEditable(text); 3148 text = t; 3149 setFilters(t, mFilters); 3150 InputMethodManager imm = InputMethodManager.peekInstance(); 3151 if (imm != null) imm.restartInput(this); 3152 } else if (type == BufferType.SPANNABLE || mMovement != null) { 3153 text = mSpannableFactory.newSpannable(text); 3154 } else if (!(text instanceof CharWrapper)) { 3155 text = TextUtils.stringOrSpannedString(text); 3156 } 3157 3158 if (mAutoLinkMask != 0) { 3159 Spannable s2; 3160 3161 if (type == BufferType.EDITABLE || text instanceof Spannable) { 3162 s2 = (Spannable) text; 3163 } else { 3164 s2 = mSpannableFactory.newSpannable(text); 3165 } 3166 3167 if (Linkify.addLinks(s2, mAutoLinkMask)) { 3168 text = s2; 3169 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 3170 3171 /* 3172 * We must go ahead and set the text before changing the 3173 * movement method, because setMovementMethod() may call 3174 * setText() again to try to upgrade the buffer type. 3175 */ 3176 mText = text; 3177 3178 // Do not change the movement method for text that support text selection as it 3179 // would prevent an arbitrary cursor displacement. 3180 if (mLinksClickable && !textCanBeSelected()) { 3181 setMovementMethod(LinkMovementMethod.getInstance()); 3182 } 3183 } 3184 } 3185 3186 mBufferType = type; 3187 mText = text; 3188 3189 if (mTransformation == null) { 3190 mTransformed = text; 3191 } else { 3192 mTransformed = mTransformation.getTransformation(text, this); 3193 } 3194 3195 final int textLength = text.length(); 3196 3197 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 3198 Spannable sp = (Spannable) text; 3199 3200 // Remove any ChangeWatchers that might have come 3201 // from other TextViews. 3202 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 3203 final int count = watchers.length; 3204 for (int i = 0; i < count; i++) 3205 sp.removeSpan(watchers[i]); 3206 3207 if (mChangeWatcher == null) 3208 mChangeWatcher = new ChangeWatcher(); 3209 3210 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 3211 (CHANGE_WATCHER_PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 3212 3213 if (mEditor != null && getEditor().mKeyListener != null) { 3214 sp.setSpan(getEditor().mKeyListener, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3215 } 3216 3217 if (mTransformation != null) { 3218 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3219 } 3220 3221 if (mMovement != null) { 3222 mMovement.initialize(this, (Spannable) text); 3223 3224 /* 3225 * Initializing the movement method will have set the 3226 * selection, so reset mSelectionMoved to keep that from 3227 * interfering with the normal on-focus selection-setting. 3228 */ 3229 if (mEditor != null) getEditor().mSelectionMoved = false; 3230 } 3231 } 3232 3233 if (mLayout != null) { 3234 checkForRelayout(); 3235 } 3236 3237 sendOnTextChanged(text, 0, oldlen, textLength); 3238 onTextChanged(text, 0, oldlen, textLength); 3239 3240 if (needEditableForNotification) { 3241 sendAfterTextChanged((Editable) text); 3242 } 3243 3244 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 3245 prepareCursorControllers(); 3246 } 3247 3248 /** 3249 * Sets the TextView to display the specified slice of the specified 3250 * char array. You must promise that you will not change the contents 3251 * of the array except for right before another call to setText(), 3252 * since the TextView has no way to know that the text 3253 * has changed and that it needs to invalidate and re-layout. 3254 */ 3255 public final void setText(char[] text, int start, int len) { 3256 int oldlen = 0; 3257 3258 if (start < 0 || len < 0 || start + len > text.length) { 3259 throw new IndexOutOfBoundsException(start + ", " + len); 3260 } 3261 3262 /* 3263 * We must do the before-notification here ourselves because if 3264 * the old text is a CharWrapper we destroy it before calling 3265 * into the normal path. 3266 */ 3267 if (mText != null) { 3268 oldlen = mText.length(); 3269 sendBeforeTextChanged(mText, 0, oldlen, len); 3270 } else { 3271 sendBeforeTextChanged("", 0, 0, len); 3272 } 3273 3274 if (mCharWrapper == null) { 3275 mCharWrapper = new CharWrapper(text, start, len); 3276 } else { 3277 mCharWrapper.set(text, start, len); 3278 } 3279 3280 setText(mCharWrapper, mBufferType, false, oldlen); 3281 } 3282 3283 /** 3284 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 3285 * except that the cursor position (if any) is retained in the new text. 3286 * 3287 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3288 */ 3289 public final void setTextKeepState(CharSequence text, BufferType type) { 3290 int start = getSelectionStart(); 3291 int end = getSelectionEnd(); 3292 int len = text.length(); 3293 3294 setText(text, type); 3295 3296 if (start >= 0 || end >= 0) { 3297 if (mText instanceof Spannable) { 3298 Selection.setSelection((Spannable) mText, 3299 Math.max(0, Math.min(start, len)), 3300 Math.max(0, Math.min(end, len))); 3301 } 3302 } 3303 } 3304 3305 @android.view.RemotableViewMethod 3306 public final void setText(int resid) { 3307 setText(getContext().getResources().getText(resid)); 3308 } 3309 3310 public final void setText(int resid, BufferType type) { 3311 setText(getContext().getResources().getText(resid), type); 3312 } 3313 3314 /** 3315 * Sets the text to be displayed when the text of the TextView is empty. 3316 * Null means to use the normal empty text. The hint does not currently 3317 * participate in determining the size of the view. 3318 * 3319 * @attr ref android.R.styleable#TextView_hint 3320 */ 3321 @android.view.RemotableViewMethod 3322 public final void setHint(CharSequence hint) { 3323 mHint = TextUtils.stringOrSpannedString(hint); 3324 3325 if (mLayout != null) { 3326 checkForRelayout(); 3327 } 3328 3329 if (mText.length() == 0) { 3330 invalidate(); 3331 } 3332 3333 // Invalidate display list if hint will be used 3334 if (mEditor != null && mText.length() == 0 && mHint != null) { 3335 getEditor().mTextDisplayListIsValid = false; 3336 } 3337 } 3338 3339 /** 3340 * Sets the text to be displayed when the text of the TextView is empty, 3341 * from a resource. 3342 * 3343 * @attr ref android.R.styleable#TextView_hint 3344 */ 3345 @android.view.RemotableViewMethod 3346 public final void setHint(int resid) { 3347 setHint(getContext().getResources().getText(resid)); 3348 } 3349 3350 /** 3351 * Returns the hint that is displayed when the text of the TextView 3352 * is empty. 3353 * 3354 * @attr ref android.R.styleable#TextView_hint 3355 */ 3356 @ViewDebug.CapturedViewProperty 3357 public CharSequence getHint() { 3358 return mHint; 3359 } 3360 3361 private static boolean isMultilineInputType(int type) { 3362 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3363 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3364 } 3365 3366 /** 3367 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3368 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3369 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3370 * then a soft keyboard will not be displayed for this text view. 3371 * 3372 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3373 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3374 * type. 3375 * 3376 * @see #getInputType() 3377 * @see #setRawInputType(int) 3378 * @see android.text.InputType 3379 * @attr ref android.R.styleable#TextView_inputType 3380 */ 3381 public void setInputType(int type) { 3382 final boolean wasPassword = isPasswordInputType(getInputType()); 3383 final boolean wasVisiblePassword = isVisiblePasswordInputType(getInputType()); 3384 setInputType(type, false); 3385 final boolean isPassword = isPasswordInputType(type); 3386 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3387 boolean forceUpdate = false; 3388 if (isPassword) { 3389 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3390 setTypefaceByIndex(MONOSPACE, 0); 3391 } else if (isVisiblePassword) { 3392 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3393 forceUpdate = true; 3394 } 3395 setTypefaceByIndex(MONOSPACE, 0); 3396 } else if (wasPassword || wasVisiblePassword) { 3397 // not in password mode, clean up typeface and transformation 3398 setTypefaceByIndex(-1, -1); 3399 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3400 forceUpdate = true; 3401 } 3402 } 3403 3404 boolean singleLine = !isMultilineInputType(type); 3405 3406 // We need to update the single line mode if it has changed or we 3407 // were previously in password mode. 3408 if (mSingleLine != singleLine || forceUpdate) { 3409 // Change single line mode, but only change the transformation if 3410 // we are not in password mode. 3411 applySingleLine(singleLine, !isPassword, true); 3412 } 3413 3414 if (!isSuggestionsEnabled()) { 3415 mText = removeSuggestionSpans(mText); 3416 } 3417 3418 InputMethodManager imm = InputMethodManager.peekInstance(); 3419 if (imm != null) imm.restartInput(this); 3420 } 3421 3422 /** 3423 * It would be better to rely on the input type for everything. A password inputType should have 3424 * a password transformation. We should hence use isPasswordInputType instead of this method. 3425 * 3426 * We should: 3427 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3428 * would install the correct transformation). 3429 * - Refuse the installation of a non-password transformation in setTransformation if the input 3430 * type is password. 3431 * 3432 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3433 * is useful since it matches what the user can see (obfuscated text or not). 3434 * 3435 * @return true if the current transformation method is of the password type. 3436 */ 3437 private boolean hasPasswordTransformationMethod() { 3438 return mTransformation instanceof PasswordTransformationMethod; 3439 } 3440 3441 private static boolean isPasswordInputType(int inputType) { 3442 final int variation = 3443 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3444 return variation 3445 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3446 || variation 3447 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3448 || variation 3449 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3450 } 3451 3452 private static boolean isVisiblePasswordInputType(int inputType) { 3453 final int variation = 3454 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3455 return variation 3456 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3457 } 3458 3459 /** 3460 * Directly change the content type integer of the text view, without 3461 * modifying any other state. 3462 * @see #setInputType(int) 3463 * @see android.text.InputType 3464 * @attr ref android.R.styleable#TextView_inputType 3465 */ 3466 public void setRawInputType(int type) { 3467 if (type == InputType.TYPE_NULL && mEditor == null) return; //TYPE_NULL is the default value 3468 createEditorIfNeeded("non null input type"); 3469 getEditor().mInputType = type; 3470 } 3471 3472 private void setInputType(int type, boolean direct) { 3473 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3474 KeyListener input; 3475 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3476 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3477 TextKeyListener.Capitalize cap; 3478 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3479 cap = TextKeyListener.Capitalize.CHARACTERS; 3480 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3481 cap = TextKeyListener.Capitalize.WORDS; 3482 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3483 cap = TextKeyListener.Capitalize.SENTENCES; 3484 } else { 3485 cap = TextKeyListener.Capitalize.NONE; 3486 } 3487 input = TextKeyListener.getInstance(autotext, cap); 3488 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3489 input = DigitsKeyListener.getInstance( 3490 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3491 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3492 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3493 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3494 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3495 input = DateKeyListener.getInstance(); 3496 break; 3497 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3498 input = TimeKeyListener.getInstance(); 3499 break; 3500 default: 3501 input = DateTimeKeyListener.getInstance(); 3502 break; 3503 } 3504 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3505 input = DialerKeyListener.getInstance(); 3506 } else { 3507 input = TextKeyListener.getInstance(); 3508 } 3509 setRawInputType(type); 3510 if (direct) { 3511 createEditorIfNeeded("setInputType"); 3512 getEditor().mKeyListener = input; 3513 } else { 3514 setKeyListenerOnly(input); 3515 } 3516 } 3517 3518 /** 3519 * Get the type of the editable content. 3520 * 3521 * @see #setInputType(int) 3522 * @see android.text.InputType 3523 */ 3524 public int getInputType() { 3525 return mEditor == null ? EditorInfo.TYPE_NULL : getEditor().mInputType; 3526 } 3527 3528 /** 3529 * Change the editor type integer associated with the text view, which 3530 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3531 * has focus. 3532 * @see #getImeOptions 3533 * @see android.view.inputmethod.EditorInfo 3534 * @attr ref android.R.styleable#TextView_imeOptions 3535 */ 3536 public void setImeOptions(int imeOptions) { 3537 createEditorIfNeeded("IME options specified"); 3538 if (getEditor().mInputContentType == null) { 3539 getEditor().mInputContentType = new InputContentType(); 3540 } 3541 getEditor().mInputContentType.imeOptions = imeOptions; 3542 } 3543 3544 /** 3545 * Get the type of the IME editor. 3546 * 3547 * @see #setImeOptions(int) 3548 * @see android.view.inputmethod.EditorInfo 3549 */ 3550 public int getImeOptions() { 3551 return mEditor != null && getEditor().mInputContentType != null 3552 ? getEditor().mInputContentType.imeOptions : EditorInfo.IME_NULL; 3553 } 3554 3555 /** 3556 * Change the custom IME action associated with the text view, which 3557 * will be reported to an IME with {@link EditorInfo#actionLabel} 3558 * and {@link EditorInfo#actionId} when it has focus. 3559 * @see #getImeActionLabel 3560 * @see #getImeActionId 3561 * @see android.view.inputmethod.EditorInfo 3562 * @attr ref android.R.styleable#TextView_imeActionLabel 3563 * @attr ref android.R.styleable#TextView_imeActionId 3564 */ 3565 public void setImeActionLabel(CharSequence label, int actionId) { 3566 createEditorIfNeeded("IME action label specified"); 3567 if (getEditor().mInputContentType == null) { 3568 getEditor().mInputContentType = new InputContentType(); 3569 } 3570 getEditor().mInputContentType.imeActionLabel = label; 3571 getEditor().mInputContentType.imeActionId = actionId; 3572 } 3573 3574 /** 3575 * Get the IME action label previous set with {@link #setImeActionLabel}. 3576 * 3577 * @see #setImeActionLabel 3578 * @see android.view.inputmethod.EditorInfo 3579 */ 3580 public CharSequence getImeActionLabel() { 3581 return mEditor != null && getEditor().mInputContentType != null 3582 ? getEditor().mInputContentType.imeActionLabel : null; 3583 } 3584 3585 /** 3586 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3587 * 3588 * @see #setImeActionLabel 3589 * @see android.view.inputmethod.EditorInfo 3590 */ 3591 public int getImeActionId() { 3592 return mEditor != null && getEditor().mInputContentType != null 3593 ? getEditor().mInputContentType.imeActionId : 0; 3594 } 3595 3596 /** 3597 * Set a special listener to be called when an action is performed 3598 * on the text view. This will be called when the enter key is pressed, 3599 * or when an action supplied to the IME is selected by the user. Setting 3600 * this means that the normal hard key event will not insert a newline 3601 * into the text view, even if it is multi-line; holding down the ALT 3602 * modifier will, however, allow the user to insert a newline character. 3603 */ 3604 public void setOnEditorActionListener(OnEditorActionListener l) { 3605 createEditorIfNeeded("Editor action listener set"); 3606 if (getEditor().mInputContentType == null) { 3607 getEditor().mInputContentType = new InputContentType(); 3608 } 3609 getEditor().mInputContentType.onEditorActionListener = l; 3610 } 3611 3612 /** 3613 * Called when an attached input method calls 3614 * {@link InputConnection#performEditorAction(int) 3615 * InputConnection.performEditorAction()} 3616 * for this text view. The default implementation will call your action 3617 * listener supplied to {@link #setOnEditorActionListener}, or perform 3618 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3619 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3620 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3621 * EditorInfo.IME_ACTION_DONE}. 3622 * 3623 * <p>For backwards compatibility, if no IME options have been set and the 3624 * text view would not normally advance focus on enter, then 3625 * the NEXT and DONE actions received here will be turned into an enter 3626 * key down/up pair to go through the normal key handling. 3627 * 3628 * @param actionCode The code of the action being performed. 3629 * 3630 * @see #setOnEditorActionListener 3631 */ 3632 public void onEditorAction(int actionCode) { 3633 final InputContentType ict = mEditor == null ? null : getEditor().mInputContentType; 3634 if (ict != null) { 3635 if (ict.onEditorActionListener != null) { 3636 if (ict.onEditorActionListener.onEditorAction(this, 3637 actionCode, null)) { 3638 return; 3639 } 3640 } 3641 3642 // This is the handling for some default action. 3643 // Note that for backwards compatibility we don't do this 3644 // default handling if explicit ime options have not been given, 3645 // instead turning this into the normal enter key codes that an 3646 // app may be expecting. 3647 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3648 View v = focusSearch(FOCUS_FORWARD); 3649 if (v != null) { 3650 if (!v.requestFocus(FOCUS_FORWARD)) { 3651 throw new IllegalStateException("focus search returned a view " + 3652 "that wasn't able to take focus!"); 3653 } 3654 } 3655 return; 3656 3657 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3658 View v = focusSearch(FOCUS_BACKWARD); 3659 if (v != null) { 3660 if (!v.requestFocus(FOCUS_BACKWARD)) { 3661 throw new IllegalStateException("focus search returned a view " + 3662 "that wasn't able to take focus!"); 3663 } 3664 } 3665 return; 3666 3667 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3668 InputMethodManager imm = InputMethodManager.peekInstance(); 3669 if (imm != null && imm.isActive(this)) { 3670 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3671 } 3672 return; 3673 } 3674 } 3675 3676 ViewRootImpl viewRootImpl = getViewRootImpl(); 3677 if (viewRootImpl != null) { 3678 long eventTime = SystemClock.uptimeMillis(); 3679 viewRootImpl.dispatchKeyFromIme( 3680 new KeyEvent(eventTime, eventTime, 3681 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3682 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3683 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3684 | KeyEvent.FLAG_EDITOR_ACTION)); 3685 viewRootImpl.dispatchKeyFromIme( 3686 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3687 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3688 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3689 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3690 | KeyEvent.FLAG_EDITOR_ACTION)); 3691 } 3692 } 3693 3694 /** 3695 * Set the private content type of the text, which is the 3696 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3697 * field that will be filled in when creating an input connection. 3698 * 3699 * @see #getPrivateImeOptions() 3700 * @see EditorInfo#privateImeOptions 3701 * @attr ref android.R.styleable#TextView_privateImeOptions 3702 */ 3703 public void setPrivateImeOptions(String type) { 3704 createEditorIfNeeded("Private IME option set"); 3705 if (getEditor().mInputContentType == null) 3706 getEditor().mInputContentType = new InputContentType(); 3707 getEditor().mInputContentType.privateImeOptions = type; 3708 } 3709 3710 /** 3711 * Get the private type of the content. 3712 * 3713 * @see #setPrivateImeOptions(String) 3714 * @see EditorInfo#privateImeOptions 3715 */ 3716 public String getPrivateImeOptions() { 3717 return mEditor != null && getEditor().mInputContentType != null 3718 ? getEditor().mInputContentType.privateImeOptions : null; 3719 } 3720 3721 /** 3722 * Set the extra input data of the text, which is the 3723 * {@link EditorInfo#extras TextBoxAttribute.extras} 3724 * Bundle that will be filled in when creating an input connection. The 3725 * given integer is the resource ID of an XML resource holding an 3726 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3727 * 3728 * @see #getInputExtras(boolean) 3729 * @see EditorInfo#extras 3730 * @attr ref android.R.styleable#TextView_editorExtras 3731 */ 3732 public void setInputExtras(int xmlResId) throws XmlPullParserException, IOException { 3733 createEditorIfNeeded("Input extra set"); 3734 XmlResourceParser parser = getResources().getXml(xmlResId); 3735 if (getEditor().mInputContentType == null) 3736 getEditor().mInputContentType = new InputContentType(); 3737 getEditor().mInputContentType.extras = new Bundle(); 3738 getResources().parseBundleExtras(parser, getEditor().mInputContentType.extras); 3739 } 3740 3741 /** 3742 * Retrieve the input extras currently associated with the text view, which 3743 * can be viewed as well as modified. 3744 * 3745 * @param create If true, the extras will be created if they don't already 3746 * exist. Otherwise, null will be returned if none have been created. 3747 * @see #setInputExtras(int) 3748 * @see EditorInfo#extras 3749 * @attr ref android.R.styleable#TextView_editorExtras 3750 */ 3751 public Bundle getInputExtras(boolean create) { 3752 if (mEditor == null && !create) return null; 3753 createEditorIfNeeded("get Input extra"); 3754 if (getEditor().mInputContentType == null) { 3755 if (!create) return null; 3756 getEditor().mInputContentType = new InputContentType(); 3757 } 3758 if (getEditor().mInputContentType.extras == null) { 3759 if (!create) return null; 3760 getEditor().mInputContentType.extras = new Bundle(); 3761 } 3762 return getEditor().mInputContentType.extras; 3763 } 3764 3765 /** 3766 * Returns the error message that was set to be displayed with 3767 * {@link #setError}, or <code>null</code> if no error was set 3768 * or if it the error was cleared by the widget after user input. 3769 */ 3770 public CharSequence getError() { 3771 return mEditor == null ? null : getEditor().mError; 3772 } 3773 3774 /** 3775 * Sets the right-hand compound drawable of the TextView to the "error" 3776 * icon and sets an error message that will be displayed in a popup when 3777 * the TextView has focus. The icon and error message will be reset to 3778 * null when any key events cause changes to the TextView's text. If the 3779 * <code>error</code> is <code>null</code>, the error message and icon 3780 * will be cleared. 3781 */ 3782 @android.view.RemotableViewMethod 3783 public void setError(CharSequence error) { 3784 if (error == null) { 3785 setError(null, null); 3786 } else { 3787 Drawable dr = getContext().getResources(). 3788 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3789 3790 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3791 setError(error, dr); 3792 } 3793 } 3794 3795 /** 3796 * Sets the right-hand compound drawable of the TextView to the specified 3797 * icon and sets an error message that will be displayed in a popup when 3798 * the TextView has focus. The icon and error message will be reset to 3799 * null when any key events cause changes to the TextView's text. The 3800 * drawable must already have had {@link Drawable#setBounds} set on it. 3801 * If the <code>error</code> is <code>null</code>, the error message will 3802 * be cleared (and you should provide a <code>null</code> icon as well). 3803 */ 3804 public void setError(CharSequence error, Drawable icon) { 3805 createEditorIfNeeded("setError"); 3806 error = TextUtils.stringOrSpannedString(error); 3807 3808 getEditor().mError = error; 3809 getEditor().mErrorWasChanged = true; 3810 final Drawables dr = mDrawables; 3811 if (dr != null) { 3812 switch (getResolvedLayoutDirection()) { 3813 default: 3814 case LAYOUT_DIRECTION_LTR: 3815 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, 3816 dr.mDrawableBottom); 3817 break; 3818 case LAYOUT_DIRECTION_RTL: 3819 setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight, 3820 dr.mDrawableBottom); 3821 break; 3822 } 3823 } else { 3824 setCompoundDrawables(null, null, icon, null); 3825 } 3826 3827 if (error == null) { 3828 if (getEditor().mErrorPopup != null) { 3829 if (getEditor().mErrorPopup.isShowing()) { 3830 getEditor().mErrorPopup.dismiss(); 3831 } 3832 3833 getEditor().mErrorPopup = null; 3834 } 3835 } else { 3836 if (isFocused()) { 3837 showError(); 3838 } 3839 } 3840 } 3841 3842 private void showError() { 3843 if (getWindowToken() == null) { 3844 getEditor().mShowErrorAfterAttach = true; 3845 return; 3846 } 3847 3848 if (getEditor().mErrorPopup == null) { 3849 LayoutInflater inflater = LayoutInflater.from(getContext()); 3850 final TextView err = (TextView) inflater.inflate( 3851 com.android.internal.R.layout.textview_hint, null); 3852 3853 final float scale = getResources().getDisplayMetrics().density; 3854 getEditor().mErrorPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 3855 getEditor().mErrorPopup.setFocusable(false); 3856 // The user is entering text, so the input method is needed. We 3857 // don't want the popup to be displayed on top of it. 3858 getEditor().mErrorPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3859 } 3860 3861 TextView tv = (TextView) getEditor().mErrorPopup.getContentView(); 3862 chooseSize(getEditor().mErrorPopup, getEditor().mError, tv); 3863 tv.setText(getEditor().mError); 3864 3865 getEditor().mErrorPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3866 getEditor().mErrorPopup.fixDirection(getEditor().mErrorPopup.isAboveAnchor()); 3867 } 3868 3869 /** 3870 * Returns the Y offset to make the pointy top of the error point 3871 * at the middle of the error icon. 3872 */ 3873 private int getErrorX() { 3874 /* 3875 * The "25" is the distance between the point and the right edge 3876 * of the background 3877 */ 3878 final float scale = getResources().getDisplayMetrics().density; 3879 3880 final Drawables dr = mDrawables; 3881 return getWidth() - getEditor().mErrorPopup.getWidth() - getPaddingRight() - 3882 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3883 } 3884 3885 /** 3886 * Returns the Y offset to make the pointy top of the error point 3887 * at the bottom of the error icon. 3888 */ 3889 private int getErrorY() { 3890 /* 3891 * Compound, not extended, because the icon is not clipped 3892 * if the text height is smaller. 3893 */ 3894 final int compoundPaddingTop = getCompoundPaddingTop(); 3895 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 3896 3897 final Drawables dr = mDrawables; 3898 int icontop = compoundPaddingTop + 3899 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3900 3901 /* 3902 * The "2" is the distance between the point and the top edge 3903 * of the background. 3904 */ 3905 final float scale = getResources().getDisplayMetrics().density; 3906 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 3907 (int) (2 * scale + 0.5f); 3908 } 3909 3910 private void hideError() { 3911 if (getEditor().mErrorPopup != null) { 3912 if (getEditor().mErrorPopup.isShowing()) { 3913 getEditor().mErrorPopup.dismiss(); 3914 } 3915 } 3916 3917 getEditor().mShowErrorAfterAttach = false; 3918 } 3919 3920 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3921 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3922 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3923 3924 int defaultWidthInPixels = getResources().getDimensionPixelSize( 3925 com.android.internal.R.dimen.textview_error_popup_default_width); 3926 Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels, 3927 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3928 float max = 0; 3929 for (int i = 0; i < l.getLineCount(); i++) { 3930 max = Math.max(max, l.getLineWidth(i)); 3931 } 3932 3933 /* 3934 * Now set the popup size to be big enough for the text plus the border capped 3935 * to DEFAULT_MAX_POPUP_WIDTH 3936 */ 3937 pop.setWidth(wid + (int) Math.ceil(max)); 3938 pop.setHeight(ht + l.getHeight()); 3939 } 3940 3941 3942 @Override 3943 protected boolean setFrame(int l, int t, int r, int b) { 3944 boolean result = super.setFrame(l, t, r, b); 3945 3946 if (mEditor != null) getEditor().setFrame(); 3947 3948 restartMarqueeIfNeeded(); 3949 3950 return result; 3951 } 3952 3953 private void restartMarqueeIfNeeded() { 3954 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3955 mRestartMarquee = false; 3956 startMarquee(); 3957 } 3958 } 3959 3960 /** 3961 * Sets the list of input filters that will be used if the buffer is 3962 * Editable. Has no effect otherwise. 3963 * 3964 * @attr ref android.R.styleable#TextView_maxLength 3965 */ 3966 public void setFilters(InputFilter[] filters) { 3967 if (filters == null) { 3968 throw new IllegalArgumentException(); 3969 } 3970 3971 mFilters = filters; 3972 3973 if (mText instanceof Editable) { 3974 setFilters((Editable) mText, filters); 3975 } 3976 } 3977 3978 /** 3979 * Sets the list of input filters on the specified Editable, 3980 * and includes mInput in the list if it is an InputFilter. 3981 */ 3982 private void setFilters(Editable e, InputFilter[] filters) { 3983 if (mEditor != null && getEditor().mKeyListener instanceof InputFilter) { 3984 InputFilter[] nf = new InputFilter[filters.length + 1]; 3985 3986 System.arraycopy(filters, 0, nf, 0, filters.length); 3987 nf[filters.length] = (InputFilter) getEditor().mKeyListener; 3988 3989 e.setFilters(nf); 3990 } else { 3991 e.setFilters(filters); 3992 } 3993 } 3994 3995 /** 3996 * Returns the current list of input filters. 3997 */ 3998 public InputFilter[] getFilters() { 3999 return mFilters; 4000 } 4001 4002 ///////////////////////////////////////////////////////////////////////// 4003 4004 private int getVerticalOffset(boolean forceNormal) { 4005 int voffset = 0; 4006 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4007 4008 Layout l = mLayout; 4009 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4010 l = mHintLayout; 4011 } 4012 4013 if (gravity != Gravity.TOP) { 4014 int boxht; 4015 4016 if (l == mHintLayout) { 4017 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4018 getCompoundPaddingBottom(); 4019 } else { 4020 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4021 getExtendedPaddingBottom(); 4022 } 4023 int textht = l.getHeight(); 4024 4025 if (textht < boxht) { 4026 if (gravity == Gravity.BOTTOM) 4027 voffset = boxht - textht; 4028 else // (gravity == Gravity.CENTER_VERTICAL) 4029 voffset = (boxht - textht) >> 1; 4030 } 4031 } 4032 return voffset; 4033 } 4034 4035 private int getBottomVerticalOffset(boolean forceNormal) { 4036 int voffset = 0; 4037 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4038 4039 Layout l = mLayout; 4040 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4041 l = mHintLayout; 4042 } 4043 4044 if (gravity != Gravity.BOTTOM) { 4045 int boxht; 4046 4047 if (l == mHintLayout) { 4048 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4049 getCompoundPaddingBottom(); 4050 } else { 4051 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4052 getExtendedPaddingBottom(); 4053 } 4054 int textht = l.getHeight(); 4055 4056 if (textht < boxht) { 4057 if (gravity == Gravity.TOP) 4058 voffset = boxht - textht; 4059 else // (gravity == Gravity.CENTER_VERTICAL) 4060 voffset = (boxht - textht) >> 1; 4061 } 4062 } 4063 return voffset; 4064 } 4065 4066 private void invalidateCursorPath() { 4067 if (getEditor().mHighlightPathBogus) { 4068 invalidateCursor(); 4069 } else { 4070 final int horizontalPadding = getCompoundPaddingLeft(); 4071 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4072 4073 if (getEditor().mCursorCount == 0) { 4074 synchronized (TEMP_RECTF) { 4075 /* 4076 * The reason for this concern about the thickness of the 4077 * cursor and doing the floor/ceil on the coordinates is that 4078 * some EditTexts (notably textfields in the Browser) have 4079 * anti-aliased text where not all the characters are 4080 * necessarily at integer-multiple locations. This should 4081 * make sure the entire cursor gets invalidated instead of 4082 * sometimes missing half a pixel. 4083 */ 4084 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 4085 if (thick < 1.0f) { 4086 thick = 1.0f; 4087 } 4088 4089 thick /= 2.0f; 4090 4091 getEditor().mHighlightPath.computeBounds(TEMP_RECTF, false); 4092 4093 invalidate((int) FloatMath.floor(horizontalPadding + TEMP_RECTF.left - thick), 4094 (int) FloatMath.floor(verticalPadding + TEMP_RECTF.top - thick), 4095 (int) FloatMath.ceil(horizontalPadding + TEMP_RECTF.right + thick), 4096 (int) FloatMath.ceil(verticalPadding + TEMP_RECTF.bottom + thick)); 4097 } 4098 } else { 4099 for (int i = 0; i < getEditor().mCursorCount; i++) { 4100 Rect bounds = getEditor().mCursorDrawable[i].getBounds(); 4101 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 4102 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 4103 } 4104 } 4105 } 4106 } 4107 4108 private void invalidateCursor() { 4109 int where = getSelectionEnd(); 4110 4111 invalidateCursor(where, where, where); 4112 } 4113 4114 private void invalidateCursor(int a, int b, int c) { 4115 if (a >= 0 || b >= 0 || c >= 0) { 4116 int start = Math.min(Math.min(a, b), c); 4117 int end = Math.max(Math.max(a, b), c); 4118 invalidateRegion(start, end, true /* Also invalidates blinking cursor */); 4119 } 4120 } 4121 4122 /** 4123 * Invalidates the region of text enclosed between the start and end text offsets. 4124 * 4125 * @hide 4126 */ 4127 void invalidateRegion(int start, int end, boolean invalidateCursor) { 4128 if (mLayout == null) { 4129 invalidate(); 4130 } else { 4131 int lineStart = mLayout.getLineForOffset(start); 4132 int top = mLayout.getLineTop(lineStart); 4133 4134 // This is ridiculous, but the descent from the line above 4135 // can hang down into the line we really want to redraw, 4136 // so we have to invalidate part of the line above to make 4137 // sure everything that needs to be redrawn really is. 4138 // (But not the whole line above, because that would cause 4139 // the same problem with the descenders on the line above it!) 4140 if (lineStart > 0) { 4141 top -= mLayout.getLineDescent(lineStart - 1); 4142 } 4143 4144 int lineEnd; 4145 4146 if (start == end) 4147 lineEnd = lineStart; 4148 else 4149 lineEnd = mLayout.getLineForOffset(end); 4150 4151 int bottom = mLayout.getLineBottom(lineEnd); 4152 4153 if (invalidateCursor) { 4154 for (int i = 0; i < getEditor().mCursorCount; i++) { 4155 Rect bounds = getEditor().mCursorDrawable[i].getBounds(); 4156 top = Math.min(top, bounds.top); 4157 bottom = Math.max(bottom, bounds.bottom); 4158 } 4159 } 4160 4161 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4162 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4163 4164 int left, right; 4165 if (lineStart == lineEnd && !invalidateCursor) { 4166 left = (int) mLayout.getPrimaryHorizontal(start); 4167 right = (int) (mLayout.getPrimaryHorizontal(end) + 1.0); 4168 left += compoundPaddingLeft; 4169 right += compoundPaddingLeft; 4170 } else { 4171 // Rectangle bounding box when the region spans several lines 4172 left = compoundPaddingLeft; 4173 right = getWidth() - getCompoundPaddingRight(); 4174 } 4175 4176 invalidate(mScrollX + left, verticalPadding + top, 4177 mScrollX + right, verticalPadding + bottom); 4178 } 4179 } 4180 4181 private void registerForPreDraw() { 4182 if (!mPreDrawRegistered) { 4183 getViewTreeObserver().addOnPreDrawListener(this); 4184 mPreDrawRegistered = true; 4185 } 4186 } 4187 4188 /** 4189 * {@inheritDoc} 4190 */ 4191 public boolean onPreDraw() { 4192 if (mLayout == null) { 4193 assumeLayout(); 4194 } 4195 4196 boolean changed = false; 4197 4198 if (mMovement != null) { 4199 /* This code also provides auto-scrolling when a cursor is moved using a 4200 * CursorController (insertion point or selection limits). 4201 * For selection, ensure start or end is visible depending on controller's state. 4202 */ 4203 int curs = getSelectionEnd(); 4204 // Do not create the controller if it is not already created. 4205 if (mEditor != null && getEditor().mSelectionModifierCursorController != null && 4206 getEditor().mSelectionModifierCursorController.isSelectionStartDragged()) { 4207 curs = getSelectionStart(); 4208 } 4209 4210 /* 4211 * TODO: This should really only keep the end in view if 4212 * it already was before the text changed. I'm not sure 4213 * of a good way to tell from here if it was. 4214 */ 4215 if (curs < 0 && (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 4216 curs = mText.length(); 4217 } 4218 4219 if (curs >= 0) { 4220 changed = bringPointIntoView(curs); 4221 } 4222 } else { 4223 changed = bringTextIntoView(); 4224 } 4225 4226 // This has to be checked here since: 4227 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 4228 // a screen rotation) since layout is not yet initialized at that point. 4229 if (mEditor != null && getEditor().mCreatedWithASelection) { 4230 startSelectionActionMode(); 4231 getEditor().mCreatedWithASelection = false; 4232 } 4233 4234 // Phone specific code (there is no ExtractEditText on tablets). 4235 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 4236 // not be set. Do the test here instead. 4237 if (this instanceof ExtractEditText && hasSelection()) { 4238 startSelectionActionMode(); 4239 } 4240 4241 getViewTreeObserver().removeOnPreDrawListener(this); 4242 mPreDrawRegistered = false; 4243 4244 return !changed; 4245 } 4246 4247 @Override 4248 protected void onAttachedToWindow() { 4249 super.onAttachedToWindow(); 4250 4251 mTemporaryDetach = false; 4252 4253 if (mEditor != null && getEditor().mShowErrorAfterAttach) { 4254 showError(); 4255 getEditor().mShowErrorAfterAttach = false; 4256 } 4257 4258 // Resolve drawables as the layout direction has been resolved 4259 resolveDrawables(); 4260 4261 if (mEditor != null) getEditor().onAttachedToWindow(); 4262 } 4263 4264 @Override 4265 protected void onDetachedFromWindow() { 4266 super.onDetachedFromWindow(); 4267 4268 if (mPreDrawRegistered) { 4269 getViewTreeObserver().removeOnPreDrawListener(this); 4270 mPreDrawRegistered = false; 4271 } 4272 4273 resetResolvedDrawables(); 4274 4275 if (mEditor != null) getEditor().onDetachedFromWindow(); 4276 } 4277 4278 @Override 4279 protected boolean isPaddingOffsetRequired() { 4280 return mShadowRadius != 0 || mDrawables != null; 4281 } 4282 4283 @Override 4284 protected int getLeftPaddingOffset() { 4285 return getCompoundPaddingLeft() - mPaddingLeft + 4286 (int) Math.min(0, mShadowDx - mShadowRadius); 4287 } 4288 4289 @Override 4290 protected int getTopPaddingOffset() { 4291 return (int) Math.min(0, mShadowDy - mShadowRadius); 4292 } 4293 4294 @Override 4295 protected int getBottomPaddingOffset() { 4296 return (int) Math.max(0, mShadowDy + mShadowRadius); 4297 } 4298 4299 @Override 4300 protected int getRightPaddingOffset() { 4301 return -(getCompoundPaddingRight() - mPaddingRight) + 4302 (int) Math.max(0, mShadowDx + mShadowRadius); 4303 } 4304 4305 @Override 4306 protected boolean verifyDrawable(Drawable who) { 4307 final boolean verified = super.verifyDrawable(who); 4308 if (!verified && mDrawables != null) { 4309 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4310 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom || 4311 who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd; 4312 } 4313 return verified; 4314 } 4315 4316 @Override 4317 public void jumpDrawablesToCurrentState() { 4318 super.jumpDrawablesToCurrentState(); 4319 if (mDrawables != null) { 4320 if (mDrawables.mDrawableLeft != null) { 4321 mDrawables.mDrawableLeft.jumpToCurrentState(); 4322 } 4323 if (mDrawables.mDrawableTop != null) { 4324 mDrawables.mDrawableTop.jumpToCurrentState(); 4325 } 4326 if (mDrawables.mDrawableRight != null) { 4327 mDrawables.mDrawableRight.jumpToCurrentState(); 4328 } 4329 if (mDrawables.mDrawableBottom != null) { 4330 mDrawables.mDrawableBottom.jumpToCurrentState(); 4331 } 4332 if (mDrawables.mDrawableStart != null) { 4333 mDrawables.mDrawableStart.jumpToCurrentState(); 4334 } 4335 if (mDrawables.mDrawableEnd != null) { 4336 mDrawables.mDrawableEnd.jumpToCurrentState(); 4337 } 4338 } 4339 } 4340 4341 @Override 4342 public void invalidateDrawable(Drawable drawable) { 4343 if (verifyDrawable(drawable)) { 4344 final Rect dirty = drawable.getBounds(); 4345 int scrollX = mScrollX; 4346 int scrollY = mScrollY; 4347 4348 // IMPORTANT: The coordinates below are based on the coordinates computed 4349 // for each compound drawable in onDraw(). Make sure to update each section 4350 // accordingly. 4351 final TextView.Drawables drawables = mDrawables; 4352 if (drawables != null) { 4353 if (drawable == drawables.mDrawableLeft) { 4354 final int compoundPaddingTop = getCompoundPaddingTop(); 4355 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4356 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4357 4358 scrollX += mPaddingLeft; 4359 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4360 } else if (drawable == drawables.mDrawableRight) { 4361 final int compoundPaddingTop = getCompoundPaddingTop(); 4362 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4363 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4364 4365 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4366 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4367 } else if (drawable == drawables.mDrawableTop) { 4368 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4369 final int compoundPaddingRight = getCompoundPaddingRight(); 4370 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4371 4372 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4373 scrollY += mPaddingTop; 4374 } else if (drawable == drawables.mDrawableBottom) { 4375 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4376 final int compoundPaddingRight = getCompoundPaddingRight(); 4377 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4378 4379 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4380 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4381 } 4382 } 4383 4384 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4385 dirty.right + scrollX, dirty.bottom + scrollY); 4386 } 4387 } 4388 4389 /** 4390 * @hide 4391 */ 4392 @Override 4393 public int getResolvedLayoutDirection(Drawable who) { 4394 if (who == null) return View.LAYOUT_DIRECTION_LTR; 4395 if (mDrawables != null) { 4396 final Drawables drawables = mDrawables; 4397 if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight || 4398 who == drawables.mDrawableTop || who == drawables.mDrawableBottom || 4399 who == drawables.mDrawableStart || who == drawables.mDrawableEnd) { 4400 return getResolvedLayoutDirection(); 4401 } 4402 } 4403 return super.getResolvedLayoutDirection(who); 4404 } 4405 4406 @Override 4407 protected boolean onSetAlpha(int alpha) { 4408 // Alpha is supported if and only if the drawing can be done in one pass. 4409 // TODO text with spans with a background color currently do not respect this alpha. 4410 if (getBackground() == null) { 4411 if (mCurrentAlpha != alpha) { 4412 mCurrentAlpha = alpha; 4413 final Drawables dr = mDrawables; 4414 if (dr != null) { 4415 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4416 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4417 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4418 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4419 if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha); 4420 if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha); 4421 } 4422 if (mEditor != null) getEditor().mTextDisplayListIsValid = false; 4423 } 4424 return true; 4425 } 4426 4427 if (mCurrentAlpha != 255) { 4428 if (mEditor != null) getEditor().mTextDisplayListIsValid = false; 4429 } 4430 mCurrentAlpha = 255; 4431 return false; 4432 } 4433 4434 /** 4435 * When a TextView is used to display a useful piece of information to the user (such as a 4436 * contact's address), it should be made selectable, so that the user can select and copy this 4437 * content. 4438 * 4439 * Use {@link #setTextIsSelectable(boolean)} or the 4440 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4441 * selectable (text is not selectable by default). 4442 * 4443 * Note that this method simply returns the state of this flag. Although this flag has to be set 4444 * in order to select text in non-editable TextView, the content of an {@link EditText} can 4445 * always be selected, independently of the value of this flag. 4446 * 4447 * @return True if the text displayed in this TextView can be selected by the user. 4448 * 4449 * @attr ref android.R.styleable#TextView_textIsSelectable 4450 */ 4451 public boolean isTextSelectable() { 4452 return mEditor == null ? false : getEditor().mTextIsSelectable; 4453 } 4454 4455 /** 4456 * Sets whether or not (default) the content of this view is selectable by the user. 4457 * 4458 * Note that this methods affect the {@link #setFocusable(boolean)}, 4459 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4460 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4461 * customized. 4462 * 4463 * See {@link #isTextSelectable} for details. 4464 * 4465 * @param selectable Whether or not the content of this TextView should be selectable. 4466 */ 4467 public void setTextIsSelectable(boolean selectable) { 4468 if (!selectable && mEditor == null) return; // false is default value with no edit data 4469 4470 createEditorIfNeeded("setTextIsSelectable"); 4471 if (getEditor().mTextIsSelectable == selectable) return; 4472 4473 getEditor().mTextIsSelectable = selectable; 4474 setFocusableInTouchMode(selectable); 4475 setFocusable(selectable); 4476 setClickable(selectable); 4477 setLongClickable(selectable); 4478 4479 // mInputType should already be EditorInfo.TYPE_NULL and mInput should be null 4480 4481 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4482 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4483 4484 // Called by setText above, but safer in case of future code changes 4485 prepareCursorControllers(); 4486 } 4487 4488 @Override 4489 protected int[] onCreateDrawableState(int extraSpace) { 4490 final int[] drawableState; 4491 4492 if (mSingleLine) { 4493 drawableState = super.onCreateDrawableState(extraSpace); 4494 } else { 4495 drawableState = super.onCreateDrawableState(extraSpace + 1); 4496 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4497 } 4498 4499 if (isTextSelectable()) { 4500 // Disable pressed state, which was introduced when TextView was made clickable. 4501 // Prevents text color change. 4502 // setClickable(false) would have a similar effect, but it also disables focus changes 4503 // and long press actions, which are both needed by text selection. 4504 final int length = drawableState.length; 4505 for (int i = 0; i < length; i++) { 4506 if (drawableState[i] == R.attr.state_pressed) { 4507 final int[] nonPressedState = new int[length - 1]; 4508 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4509 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4510 return nonPressedState; 4511 } 4512 } 4513 } 4514 4515 return drawableState; 4516 } 4517 4518 @Override 4519 protected void onDraw(Canvas canvas) { 4520 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4521 4522 restartMarqueeIfNeeded(); 4523 4524 // Draw the background for this view 4525 super.onDraw(canvas); 4526 4527 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4528 final int compoundPaddingTop = getCompoundPaddingTop(); 4529 final int compoundPaddingRight = getCompoundPaddingRight(); 4530 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4531 final int scrollX = mScrollX; 4532 final int scrollY = mScrollY; 4533 final int right = mRight; 4534 final int left = mLeft; 4535 final int bottom = mBottom; 4536 final int top = mTop; 4537 4538 final Drawables dr = mDrawables; 4539 if (dr != null) { 4540 /* 4541 * Compound, not extended, because the icon is not clipped 4542 * if the text height is smaller. 4543 */ 4544 4545 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4546 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4547 4548 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4549 // Make sure to update invalidateDrawable() when changing this code. 4550 if (dr.mDrawableLeft != null) { 4551 canvas.save(); 4552 canvas.translate(scrollX + mPaddingLeft, 4553 scrollY + compoundPaddingTop + 4554 (vspace - dr.mDrawableHeightLeft) / 2); 4555 dr.mDrawableLeft.draw(canvas); 4556 canvas.restore(); 4557 } 4558 4559 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4560 // Make sure to update invalidateDrawable() when changing this code. 4561 if (dr.mDrawableRight != null) { 4562 canvas.save(); 4563 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4564 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4565 dr.mDrawableRight.draw(canvas); 4566 canvas.restore(); 4567 } 4568 4569 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4570 // Make sure to update invalidateDrawable() when changing this code. 4571 if (dr.mDrawableTop != null) { 4572 canvas.save(); 4573 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4574 scrollY + mPaddingTop); 4575 dr.mDrawableTop.draw(canvas); 4576 canvas.restore(); 4577 } 4578 4579 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4580 // Make sure to update invalidateDrawable() when changing this code. 4581 if (dr.mDrawableBottom != null) { 4582 canvas.save(); 4583 canvas.translate(scrollX + compoundPaddingLeft + 4584 (hspace - dr.mDrawableWidthBottom) / 2, 4585 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4586 dr.mDrawableBottom.draw(canvas); 4587 canvas.restore(); 4588 } 4589 } 4590 4591 int color = mCurTextColor; 4592 4593 if (mLayout == null) { 4594 assumeLayout(); 4595 } 4596 4597 Layout layout = mLayout; 4598 4599 if (mHint != null && mText.length() == 0) { 4600 if (mHintTextColor != null) { 4601 color = mCurHintTextColor; 4602 } 4603 4604 layout = mHintLayout; 4605 } 4606 4607 mTextPaint.setColor(color); 4608 if (mCurrentAlpha != 255) { 4609 // If set, the alpha will override the color's alpha. Multiply the alphas. 4610 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4611 } 4612 mTextPaint.drawableState = getDrawableState(); 4613 4614 canvas.save(); 4615 /* Would be faster if we didn't have to do this. Can we chop the 4616 (displayable) text so that we don't need to do this ever? 4617 */ 4618 4619 int extendedPaddingTop = getExtendedPaddingTop(); 4620 int extendedPaddingBottom = getExtendedPaddingBottom(); 4621 4622 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4623 final int maxScrollY = mLayout.getHeight() - vspace; 4624 4625 float clipLeft = compoundPaddingLeft + scrollX; 4626 float clipTop = (scrollY == 0) ? 0 : extendedPaddingTop + scrollY; 4627 float clipRight = right - left - compoundPaddingRight + scrollX; 4628 float clipBottom = bottom - top + scrollY - 4629 ((scrollY == maxScrollY) ? 0 : extendedPaddingBottom); 4630 4631 if (mShadowRadius != 0) { 4632 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4633 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4634 4635 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4636 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4637 } 4638 4639 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4640 4641 int voffsetText = 0; 4642 int voffsetCursor = 0; 4643 4644 // translate in by our padding 4645 /* shortcircuit calling getVerticaOffset() */ 4646 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4647 voffsetText = getVerticalOffset(false); 4648 voffsetCursor = getVerticalOffset(true); 4649 } 4650 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4651 4652 final int layoutDirection = getResolvedLayoutDirection(); 4653 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 4654 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 4655 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 4656 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4657 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4658 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4659 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4660 } 4661 4662 if (mMarquee != null && mMarquee.isRunning()) { 4663 canvas.translate(-mMarquee.mScroll, 0.0f); 4664 } 4665 } 4666 4667 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4668 4669 if (mEditor != null) { 4670 getEditor().onDraw(canvas, layout, cursorOffsetVertical); 4671 } else { 4672 layout.draw(canvas, null, null, cursorOffsetVertical); 4673 4674 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4675 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4676 layout.draw(canvas, null, null, cursorOffsetVertical); 4677 } 4678 } 4679 4680 canvas.restore(); 4681 } 4682 4683 private void updateCursorsPositions() { 4684 if (mCursorDrawableRes == 0) { 4685 getEditor().mCursorCount = 0; 4686 return; 4687 } 4688 4689 final int offset = getSelectionStart(); 4690 final int line = mLayout.getLineForOffset(offset); 4691 final int top = mLayout.getLineTop(line); 4692 final int bottom = mLayout.getLineTop(line + 1); 4693 4694 getEditor().mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 4695 4696 int middle = bottom; 4697 if (getEditor().mCursorCount == 2) { 4698 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 4699 middle = (top + bottom) >> 1; 4700 } 4701 4702 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 4703 4704 if (getEditor().mCursorCount == 2) { 4705 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 4706 } 4707 } 4708 4709 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 4710 if (getEditor().mCursorDrawable[cursorIndex] == null) 4711 getEditor().mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 4712 4713 if (mTempRect == null) mTempRect = new Rect(); 4714 getEditor().mCursorDrawable[cursorIndex].getPadding(mTempRect); 4715 final int width = getEditor().mCursorDrawable[cursorIndex].getIntrinsicWidth(); 4716 horizontal = Math.max(0.5f, horizontal - 0.5f); 4717 final int left = (int) (horizontal) - mTempRect.left; 4718 getEditor().mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 4719 bottom + mTempRect.bottom); 4720 } 4721 4722 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 4723 final boolean translate = cursorOffsetVertical != 0; 4724 if (translate) canvas.translate(0, cursorOffsetVertical); 4725 for (int i = 0; i < getEditor().mCursorCount; i++) { 4726 getEditor().mCursorDrawable[i].draw(canvas); 4727 } 4728 if (translate) canvas.translate(0, -cursorOffsetVertical); 4729 } 4730 4731 @Override 4732 public void getFocusedRect(Rect r) { 4733 if (mLayout == null) { 4734 super.getFocusedRect(r); 4735 return; 4736 } 4737 4738 int selEnd = getSelectionEnd(); 4739 if (selEnd < 0) { 4740 super.getFocusedRect(r); 4741 return; 4742 } 4743 4744 int selStart = getSelectionStart(); 4745 if (selStart < 0 || selStart >= selEnd) { 4746 int line = mLayout.getLineForOffset(selEnd); 4747 r.top = mLayout.getLineTop(line); 4748 r.bottom = mLayout.getLineBottom(line); 4749 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 4750 r.right = r.left + 4; 4751 } else { 4752 int lineStart = mLayout.getLineForOffset(selStart); 4753 int lineEnd = mLayout.getLineForOffset(selEnd); 4754 r.top = mLayout.getLineTop(lineStart); 4755 r.bottom = mLayout.getLineBottom(lineEnd); 4756 if (lineStart == lineEnd) { 4757 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 4758 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 4759 } else { 4760 // Selection extends across multiple lines -- make the focused 4761 // rect cover the entire width. 4762 if (mEditor != null) { 4763 if (getEditor().mHighlightPath == null) getEditor().mHighlightPath = new Path(); 4764 if (getEditor().mHighlightPathBogus) { 4765 getEditor().mHighlightPath.reset(); 4766 mLayout.getSelectionPath(selStart, selEnd, getEditor().mHighlightPath); 4767 getEditor().mHighlightPathBogus = false; 4768 } 4769 synchronized (TEMP_RECTF) { 4770 getEditor().mHighlightPath.computeBounds(TEMP_RECTF, true); 4771 r.left = (int)TEMP_RECTF.left-1; 4772 r.right = (int)TEMP_RECTF.right+1; 4773 } 4774 } else { 4775 r.left = 0; 4776 r.right = getMeasuredWidth(); 4777 } 4778 } 4779 } 4780 4781 // Adjust for padding and gravity. 4782 int paddingLeft = getCompoundPaddingLeft(); 4783 int paddingTop = getExtendedPaddingTop(); 4784 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4785 paddingTop += getVerticalOffset(false); 4786 } 4787 r.offset(paddingLeft, paddingTop); 4788 int paddingBottom = getExtendedPaddingBottom(); 4789 r.bottom += paddingBottom; 4790 } 4791 4792 /** 4793 * Return the number of lines of text, or 0 if the internal Layout has not 4794 * been built. 4795 */ 4796 public int getLineCount() { 4797 return mLayout != null ? mLayout.getLineCount() : 0; 4798 } 4799 4800 /** 4801 * Return the baseline for the specified line (0...getLineCount() - 1) 4802 * If bounds is not null, return the top, left, right, bottom extents 4803 * of the specified line in it. If the internal Layout has not been built, 4804 * return 0 and set bounds to (0, 0, 0, 0) 4805 * @param line which line to examine (0..getLineCount() - 1) 4806 * @param bounds Optional. If not null, it returns the extent of the line 4807 * @return the Y-coordinate of the baseline 4808 */ 4809 public int getLineBounds(int line, Rect bounds) { 4810 if (mLayout == null) { 4811 if (bounds != null) { 4812 bounds.set(0, 0, 0, 0); 4813 } 4814 return 0; 4815 } 4816 else { 4817 int baseline = mLayout.getLineBounds(line, bounds); 4818 4819 int voffset = getExtendedPaddingTop(); 4820 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4821 voffset += getVerticalOffset(true); 4822 } 4823 if (bounds != null) { 4824 bounds.offset(getCompoundPaddingLeft(), voffset); 4825 } 4826 return baseline + voffset; 4827 } 4828 } 4829 4830 @Override 4831 public int getBaseline() { 4832 if (mLayout == null) { 4833 return super.getBaseline(); 4834 } 4835 4836 int voffset = 0; 4837 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4838 voffset = getVerticalOffset(true); 4839 } 4840 4841 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4842 } 4843 4844 /** 4845 * @hide 4846 * @param offsetRequired 4847 */ 4848 @Override 4849 protected int getFadeTop(boolean offsetRequired) { 4850 if (mLayout == null) return 0; 4851 4852 int voffset = 0; 4853 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4854 voffset = getVerticalOffset(true); 4855 } 4856 4857 if (offsetRequired) voffset += getTopPaddingOffset(); 4858 4859 return getExtendedPaddingTop() + voffset; 4860 } 4861 4862 /** 4863 * @hide 4864 * @param offsetRequired 4865 */ 4866 @Override 4867 protected int getFadeHeight(boolean offsetRequired) { 4868 return mLayout != null ? mLayout.getHeight() : 0; 4869 } 4870 4871 @Override 4872 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 4873 if (keyCode == KeyEvent.KEYCODE_BACK) { 4874 boolean isInSelectionMode = mEditor != null && getEditor().mSelectionActionMode != null; 4875 4876 if (isInSelectionMode) { 4877 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 4878 KeyEvent.DispatcherState state = getKeyDispatcherState(); 4879 if (state != null) { 4880 state.startTracking(event, this); 4881 } 4882 return true; 4883 } else if (event.getAction() == KeyEvent.ACTION_UP) { 4884 KeyEvent.DispatcherState state = getKeyDispatcherState(); 4885 if (state != null) { 4886 state.handleUpEvent(event); 4887 } 4888 if (event.isTracking() && !event.isCanceled()) { 4889 stopSelectionActionMode(); 4890 return true; 4891 } 4892 } 4893 } 4894 } 4895 return super.onKeyPreIme(keyCode, event); 4896 } 4897 4898 @Override 4899 public boolean onKeyDown(int keyCode, KeyEvent event) { 4900 int which = doKeyDown(keyCode, event, null); 4901 if (which == 0) { 4902 // Go through default dispatching. 4903 return super.onKeyDown(keyCode, event); 4904 } 4905 4906 return true; 4907 } 4908 4909 @Override 4910 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4911 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4912 4913 int which = doKeyDown(keyCode, down, event); 4914 if (which == 0) { 4915 // Go through default dispatching. 4916 return super.onKeyMultiple(keyCode, repeatCount, event); 4917 } 4918 if (which == -1) { 4919 // Consumed the whole thing. 4920 return true; 4921 } 4922 4923 repeatCount--; 4924 4925 // We are going to dispatch the remaining events to either the input 4926 // or movement method. To do this, we will just send a repeated stream 4927 // of down and up events until we have done the complete repeatCount. 4928 // It would be nice if those interfaces had an onKeyMultiple() method, 4929 // but adding that is a more complicated change. 4930 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4931 if (which == 1) { 4932 // mEditor and getEditor().mInput are not null from doKeyDown 4933 getEditor().mKeyListener.onKeyUp(this, (Editable)mText, keyCode, up); 4934 while (--repeatCount > 0) { 4935 getEditor().mKeyListener.onKeyDown(this, (Editable)mText, keyCode, down); 4936 getEditor().mKeyListener.onKeyUp(this, (Editable)mText, keyCode, up); 4937 } 4938 hideErrorIfUnchanged(); 4939 4940 } else if (which == 2) { 4941 // mMovement is not null from doKeyDown 4942 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4943 while (--repeatCount > 0) { 4944 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4945 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4946 } 4947 } 4948 4949 return true; 4950 } 4951 4952 /** 4953 * Returns true if pressing ENTER in this field advances focus instead 4954 * of inserting the character. This is true mostly in single-line fields, 4955 * but also in mail addresses and subjects which will display on multiple 4956 * lines but where it doesn't make sense to insert newlines. 4957 */ 4958 private boolean shouldAdvanceFocusOnEnter() { 4959 if (getKeyListener() == null) { 4960 return false; 4961 } 4962 4963 if (mSingleLine) { 4964 return true; 4965 } 4966 4967 if (mEditor != null && (getEditor().mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4968 int variation = getEditor().mInputType & EditorInfo.TYPE_MASK_VARIATION; 4969 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 4970 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4971 return true; 4972 } 4973 } 4974 4975 return false; 4976 } 4977 4978 /** 4979 * Returns true if pressing TAB in this field advances focus instead 4980 * of inserting the character. Insert tabs only in multi-line editors. 4981 */ 4982 private boolean shouldAdvanceFocusOnTab() { 4983 if (getKeyListener() != null && !mSingleLine) { 4984 if (mEditor != null && (getEditor().mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4985 int variation = getEditor().mInputType & EditorInfo.TYPE_MASK_VARIATION; 4986 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 4987 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 4988 return false; 4989 } 4990 } 4991 } 4992 return true; 4993 } 4994 4995 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4996 if (!isEnabled()) { 4997 return 0; 4998 } 4999 5000 switch (keyCode) { 5001 case KeyEvent.KEYCODE_ENTER: 5002 if (event.hasNoModifiers()) { 5003 // When mInputContentType is set, we know that we are 5004 // running in a "modern" cupcake environment, so don't need 5005 // to worry about the application trying to capture 5006 // enter key events. 5007 if (mEditor != null && getEditor().mInputContentType != null) { 5008 // If there is an action listener, given them a 5009 // chance to consume the event. 5010 if (getEditor().mInputContentType.onEditorActionListener != null && 5011 getEditor().mInputContentType.onEditorActionListener.onEditorAction( 5012 this, EditorInfo.IME_NULL, event)) { 5013 getEditor().mInputContentType.enterDown = true; 5014 // We are consuming the enter key for them. 5015 return -1; 5016 } 5017 } 5018 5019 // If our editor should move focus when enter is pressed, or 5020 // this is a generated event from an IME action button, then 5021 // don't let it be inserted into the text. 5022 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5023 || shouldAdvanceFocusOnEnter()) { 5024 if (hasOnClickListeners()) { 5025 return 0; 5026 } 5027 return -1; 5028 } 5029 } 5030 break; 5031 5032 case KeyEvent.KEYCODE_DPAD_CENTER: 5033 if (event.hasNoModifiers()) { 5034 if (shouldAdvanceFocusOnEnter()) { 5035 return 0; 5036 } 5037 } 5038 break; 5039 5040 case KeyEvent.KEYCODE_TAB: 5041 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 5042 if (shouldAdvanceFocusOnTab()) { 5043 return 0; 5044 } 5045 } 5046 break; 5047 5048 // Has to be done on key down (and not on key up) to correctly be intercepted. 5049 case KeyEvent.KEYCODE_BACK: 5050 if (mEditor != null && getEditor().mSelectionActionMode != null) { 5051 stopSelectionActionMode(); 5052 return -1; 5053 } 5054 break; 5055 } 5056 5057 if (mEditor != null && getEditor().mKeyListener != null) { 5058 resetErrorChangedFlag(); 5059 5060 boolean doDown = true; 5061 if (otherEvent != null) { 5062 try { 5063 beginBatchEdit(); 5064 final boolean handled = getEditor().mKeyListener.onKeyOther(this, (Editable) mText, otherEvent); 5065 hideErrorIfUnchanged(); 5066 doDown = false; 5067 if (handled) { 5068 return -1; 5069 } 5070 } catch (AbstractMethodError e) { 5071 // onKeyOther was added after 1.0, so if it isn't 5072 // implemented we need to try to dispatch as a regular down. 5073 } finally { 5074 endBatchEdit(); 5075 } 5076 } 5077 5078 if (doDown) { 5079 beginBatchEdit(); 5080 final boolean handled = getEditor().mKeyListener.onKeyDown(this, (Editable) mText, keyCode, event); 5081 endBatchEdit(); 5082 hideErrorIfUnchanged(); 5083 if (handled) return 1; 5084 } 5085 } 5086 5087 // bug 650865: sometimes we get a key event before a layout. 5088 // don't try to move around if we don't know the layout. 5089 5090 if (mMovement != null && mLayout != null) { 5091 boolean doDown = true; 5092 if (otherEvent != null) { 5093 try { 5094 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 5095 otherEvent); 5096 doDown = false; 5097 if (handled) { 5098 return -1; 5099 } 5100 } catch (AbstractMethodError e) { 5101 // onKeyOther was added after 1.0, so if it isn't 5102 // implemented we need to try to dispatch as a regular down. 5103 } 5104 } 5105 if (doDown) { 5106 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 5107 return 2; 5108 } 5109 } 5110 5111 return 0; 5112 } 5113 5114 /** 5115 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 5116 * can be recorded. 5117 * @hide 5118 */ 5119 public void resetErrorChangedFlag() { 5120 /* 5121 * Keep track of what the error was before doing the input 5122 * so that if an input filter changed the error, we leave 5123 * that error showing. Otherwise, we take down whatever 5124 * error was showing when the user types something. 5125 */ 5126 if (mEditor != null) getEditor().mErrorWasChanged = false; 5127 } 5128 5129 /** 5130 * @hide 5131 */ 5132 public void hideErrorIfUnchanged() { 5133 if (mEditor != null && getEditor().mError != null && !getEditor().mErrorWasChanged) { 5134 setError(null, null); 5135 } 5136 } 5137 5138 @Override 5139 public boolean onKeyUp(int keyCode, KeyEvent event) { 5140 if (!isEnabled()) { 5141 return super.onKeyUp(keyCode, event); 5142 } 5143 5144 switch (keyCode) { 5145 case KeyEvent.KEYCODE_DPAD_CENTER: 5146 if (event.hasNoModifiers()) { 5147 /* 5148 * If there is a click listener, just call through to 5149 * super, which will invoke it. 5150 * 5151 * If there isn't a click listener, try to show the soft 5152 * input method. (It will also 5153 * call performClick(), but that won't do anything in 5154 * this case.) 5155 */ 5156 if (!hasOnClickListeners()) { 5157 if (mMovement != null && mText instanceof Editable 5158 && mLayout != null && onCheckIsTextEditor()) { 5159 InputMethodManager imm = InputMethodManager.peekInstance(); 5160 viewClicked(imm); 5161 if (imm != null) { 5162 imm.showSoftInput(this, 0); 5163 } 5164 } 5165 } 5166 } 5167 return super.onKeyUp(keyCode, event); 5168 5169 case KeyEvent.KEYCODE_ENTER: 5170 if (event.hasNoModifiers()) { 5171 if (mEditor != null && getEditor().mInputContentType != null 5172 && getEditor().mInputContentType.onEditorActionListener != null 5173 && getEditor().mInputContentType.enterDown) { 5174 getEditor().mInputContentType.enterDown = false; 5175 if (getEditor().mInputContentType.onEditorActionListener.onEditorAction( 5176 this, EditorInfo.IME_NULL, event)) { 5177 return true; 5178 } 5179 } 5180 5181 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5182 || shouldAdvanceFocusOnEnter()) { 5183 /* 5184 * If there is a click listener, just call through to 5185 * super, which will invoke it. 5186 * 5187 * If there isn't a click listener, try to advance focus, 5188 * but still call through to super, which will reset the 5189 * pressed state and longpress state. (It will also 5190 * call performClick(), but that won't do anything in 5191 * this case.) 5192 */ 5193 if (!hasOnClickListeners()) { 5194 View v = focusSearch(FOCUS_DOWN); 5195 5196 if (v != null) { 5197 if (!v.requestFocus(FOCUS_DOWN)) { 5198 throw new IllegalStateException( 5199 "focus search returned a view " + 5200 "that wasn't able to take focus!"); 5201 } 5202 5203 /* 5204 * Return true because we handled the key; super 5205 * will return false because there was no click 5206 * listener. 5207 */ 5208 super.onKeyUp(keyCode, event); 5209 return true; 5210 } else if ((event.getFlags() 5211 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 5212 // No target for next focus, but make sure the IME 5213 // if this came from it. 5214 InputMethodManager imm = InputMethodManager.peekInstance(); 5215 if (imm != null && imm.isActive(this)) { 5216 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5217 } 5218 } 5219 } 5220 } 5221 return super.onKeyUp(keyCode, event); 5222 } 5223 break; 5224 } 5225 5226 if (mEditor != null && getEditor().mKeyListener != null) 5227 if (getEditor().mKeyListener.onKeyUp(this, (Editable) mText, keyCode, event)) 5228 return true; 5229 5230 if (mMovement != null && mLayout != null) 5231 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5232 return true; 5233 5234 return super.onKeyUp(keyCode, event); 5235 } 5236 5237 @Override 5238 public boolean onCheckIsTextEditor() { 5239 return mEditor != null && getEditor().mInputType != EditorInfo.TYPE_NULL; 5240 } 5241 5242 @Override 5243 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5244 createEditorIfNeeded("onCreateInputConnection"); 5245 if (onCheckIsTextEditor() && isEnabled()) { 5246 if (getEditor().mInputMethodState == null) { 5247 getEditor().mInputMethodState = new InputMethodState(); 5248 } 5249 outAttrs.inputType = getInputType(); 5250 if (getEditor().mInputContentType != null) { 5251 outAttrs.imeOptions = getEditor().mInputContentType.imeOptions; 5252 outAttrs.privateImeOptions = getEditor().mInputContentType.privateImeOptions; 5253 outAttrs.actionLabel = getEditor().mInputContentType.imeActionLabel; 5254 outAttrs.actionId = getEditor().mInputContentType.imeActionId; 5255 outAttrs.extras = getEditor().mInputContentType.extras; 5256 } else { 5257 outAttrs.imeOptions = EditorInfo.IME_NULL; 5258 } 5259 if (focusSearch(FOCUS_DOWN) != null) { 5260 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5261 } 5262 if (focusSearch(FOCUS_UP) != null) { 5263 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5264 } 5265 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5266 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5267 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5268 // An action has not been set, but the enter key will move to 5269 // the next focus, so set the action to that. 5270 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5271 } else { 5272 // An action has not been set, and there is no focus to move 5273 // to, so let's just supply a "done" action. 5274 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5275 } 5276 if (!shouldAdvanceFocusOnEnter()) { 5277 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5278 } 5279 } 5280 if (isMultilineInputType(outAttrs.inputType)) { 5281 // Multi-line text editors should always show an enter key. 5282 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5283 } 5284 outAttrs.hintText = mHint; 5285 if (mText instanceof Editable) { 5286 InputConnection ic = new EditableInputConnection(this); 5287 outAttrs.initialSelStart = getSelectionStart(); 5288 outAttrs.initialSelEnd = getSelectionEnd(); 5289 outAttrs.initialCapsMode = ic.getCursorCapsMode(getInputType()); 5290 return ic; 5291 } 5292 } 5293 return null; 5294 } 5295 5296 /** 5297 * If this TextView contains editable content, extract a portion of it 5298 * based on the information in <var>request</var> in to <var>outText</var>. 5299 * @return Returns true if the text was successfully extracted, else false. 5300 */ 5301 public boolean extractText(ExtractedTextRequest request, 5302 ExtractedText outText) { 5303 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5304 EXTRACT_UNKNOWN, outText); 5305 } 5306 5307 static final int EXTRACT_NOTHING = -2; 5308 static final int EXTRACT_UNKNOWN = -1; 5309 5310 boolean extractTextInternal(ExtractedTextRequest request, 5311 int partialStartOffset, int partialEndOffset, int delta, 5312 ExtractedText outText) { 5313 final CharSequence content = mText; 5314 if (content != null) { 5315 if (partialStartOffset != EXTRACT_NOTHING) { 5316 final int N = content.length(); 5317 if (partialStartOffset < 0) { 5318 outText.partialStartOffset = outText.partialEndOffset = -1; 5319 partialStartOffset = 0; 5320 partialEndOffset = N; 5321 } else { 5322 // Now use the delta to determine the actual amount of text 5323 // we need. 5324 partialEndOffset += delta; 5325 // Adjust offsets to ensure we contain full spans. 5326 if (content instanceof Spanned) { 5327 Spanned spanned = (Spanned)content; 5328 Object[] spans = spanned.getSpans(partialStartOffset, 5329 partialEndOffset, ParcelableSpan.class); 5330 int i = spans.length; 5331 while (i > 0) { 5332 i--; 5333 int j = spanned.getSpanStart(spans[i]); 5334 if (j < partialStartOffset) partialStartOffset = j; 5335 j = spanned.getSpanEnd(spans[i]); 5336 if (j > partialEndOffset) partialEndOffset = j; 5337 } 5338 } 5339 outText.partialStartOffset = partialStartOffset; 5340 outText.partialEndOffset = partialEndOffset - delta; 5341 5342 if (partialStartOffset > N) { 5343 partialStartOffset = N; 5344 } else if (partialStartOffset < 0) { 5345 partialStartOffset = 0; 5346 } 5347 if (partialEndOffset > N) { 5348 partialEndOffset = N; 5349 } else if (partialEndOffset < 0) { 5350 partialEndOffset = 0; 5351 } 5352 } 5353 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5354 outText.text = content.subSequence(partialStartOffset, 5355 partialEndOffset); 5356 } else { 5357 outText.text = TextUtils.substring(content, partialStartOffset, 5358 partialEndOffset); 5359 } 5360 } else { 5361 outText.partialStartOffset = 0; 5362 outText.partialEndOffset = 0; 5363 outText.text = ""; 5364 } 5365 outText.flags = 0; 5366 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5367 outText.flags |= ExtractedText.FLAG_SELECTING; 5368 } 5369 if (mSingleLine) { 5370 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5371 } 5372 outText.startOffset = 0; 5373 outText.selectionStart = getSelectionStart(); 5374 outText.selectionEnd = getSelectionEnd(); 5375 return true; 5376 } 5377 return false; 5378 } 5379 5380 boolean reportExtractedText() { 5381 final InputMethodState ims = getEditor().mInputMethodState; 5382 if (ims != null) { 5383 final boolean contentChanged = ims.mContentChanged; 5384 if (contentChanged || ims.mSelectionModeChanged) { 5385 ims.mContentChanged = false; 5386 ims.mSelectionModeChanged = false; 5387 final ExtractedTextRequest req = ims.mExtracting; 5388 if (req != null) { 5389 InputMethodManager imm = InputMethodManager.peekInstance(); 5390 if (imm != null) { 5391 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5392 + ims.mChangedStart + " end=" + ims.mChangedEnd 5393 + " delta=" + ims.mChangedDelta); 5394 if (ims.mChangedStart < 0 && !contentChanged) { 5395 ims.mChangedStart = EXTRACT_NOTHING; 5396 } 5397 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5398 ims.mChangedDelta, ims.mTmpExtracted)) { 5399 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5400 + ims.mTmpExtracted.partialStartOffset 5401 + " end=" + ims.mTmpExtracted.partialEndOffset 5402 + ": " + ims.mTmpExtracted.text); 5403 imm.updateExtractedText(this, req.token, ims.mTmpExtracted); 5404 ims.mChangedStart = EXTRACT_UNKNOWN; 5405 ims.mChangedEnd = EXTRACT_UNKNOWN; 5406 ims.mChangedDelta = 0; 5407 ims.mContentChanged = false; 5408 return true; 5409 } 5410 } 5411 } 5412 } 5413 } 5414 return false; 5415 } 5416 5417 /** 5418 * This is used to remove all style-impacting spans from text before new 5419 * extracted text is being replaced into it, so that we don't have any 5420 * lingering spans applied during the replace. 5421 */ 5422 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5423 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5424 int i = spans.length; 5425 while (i > 0) { 5426 i--; 5427 spannable.removeSpan(spans[i]); 5428 } 5429 } 5430 5431 /** 5432 * Apply to this text view the given extracted text, as previously 5433 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5434 */ 5435 public void setExtractedText(ExtractedText text) { 5436 Editable content = getEditableText(); 5437 if (text.text != null) { 5438 if (content == null) { 5439 setText(text.text, TextView.BufferType.EDITABLE); 5440 } else if (text.partialStartOffset < 0) { 5441 removeParcelableSpans(content, 0, content.length()); 5442 content.replace(0, content.length(), text.text); 5443 } else { 5444 final int N = content.length(); 5445 int start = text.partialStartOffset; 5446 if (start > N) start = N; 5447 int end = text.partialEndOffset; 5448 if (end > N) end = N; 5449 removeParcelableSpans(content, start, end); 5450 content.replace(start, end, text.text); 5451 } 5452 } 5453 5454 // Now set the selection position... make sure it is in range, to 5455 // avoid crashes. If this is a partial update, it is possible that 5456 // the underlying text may have changed, causing us problems here. 5457 // Also we just don't want to trust clients to do the right thing. 5458 Spannable sp = (Spannable)getText(); 5459 final int N = sp.length(); 5460 int start = text.selectionStart; 5461 if (start < 0) start = 0; 5462 else if (start > N) start = N; 5463 int end = text.selectionEnd; 5464 if (end < 0) end = 0; 5465 else if (end > N) end = N; 5466 Selection.setSelection(sp, start, end); 5467 5468 // Finally, update the selection mode. 5469 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5470 MetaKeyKeyListener.startSelecting(this, sp); 5471 } else { 5472 MetaKeyKeyListener.stopSelecting(this, sp); 5473 } 5474 } 5475 5476 /** 5477 * @hide 5478 */ 5479 public void setExtracting(ExtractedTextRequest req) { 5480 if (getEditor().mInputMethodState != null) { 5481 getEditor().mInputMethodState.mExtracting = req; 5482 } 5483 // This would stop a possible selection mode, but no such mode is started in case 5484 // extracted mode will start. Some text is selected though, and will trigger an action mode 5485 // in the extracted view. 5486 hideControllers(); 5487 } 5488 5489 /** 5490 * Called by the framework in response to a text completion from 5491 * the current input method, provided by it calling 5492 * {@link InputConnection#commitCompletion 5493 * InputConnection.commitCompletion()}. The default implementation does 5494 * nothing; text views that are supporting auto-completion should override 5495 * this to do their desired behavior. 5496 * 5497 * @param text The auto complete text the user has selected. 5498 */ 5499 public void onCommitCompletion(CompletionInfo text) { 5500 // intentionally empty 5501 } 5502 5503 /** 5504 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5505 * a dictionnary) from the current input method, provided by it calling 5506 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5507 * implementation flashes the background of the corrected word to provide feedback to the user. 5508 * 5509 * @param info The auto correct info about the text that was corrected. 5510 */ 5511 public void onCommitCorrection(CorrectionInfo info) { 5512 if (mEditor == null) return; 5513 if (getEditor().mCorrectionHighlighter == null) { 5514 getEditor().mCorrectionHighlighter = new CorrectionHighlighter(); 5515 } else { 5516 getEditor().mCorrectionHighlighter.invalidate(false); 5517 } 5518 5519 getEditor().mCorrectionHighlighter.highlight(info); 5520 } 5521 5522 public void beginBatchEdit() { 5523 if (mEditor == null) return; 5524 getEditor().mInBatchEditControllers = true; 5525 final InputMethodState ims = getEditor().mInputMethodState; 5526 if (ims != null) { 5527 int nesting = ++ims.mBatchEditNesting; 5528 if (nesting == 1) { 5529 ims.mCursorChanged = false; 5530 ims.mChangedDelta = 0; 5531 if (ims.mContentChanged) { 5532 // We already have a pending change from somewhere else, 5533 // so turn this into a full update. 5534 ims.mChangedStart = 0; 5535 ims.mChangedEnd = mText.length(); 5536 } else { 5537 ims.mChangedStart = EXTRACT_UNKNOWN; 5538 ims.mChangedEnd = EXTRACT_UNKNOWN; 5539 ims.mContentChanged = false; 5540 } 5541 onBeginBatchEdit(); 5542 } 5543 } 5544 } 5545 5546 public void endBatchEdit() { 5547 if (mEditor == null) return; 5548 getEditor().mInBatchEditControllers = false; 5549 final InputMethodState ims = getEditor().mInputMethodState; 5550 if (ims != null) { 5551 int nesting = --ims.mBatchEditNesting; 5552 if (nesting == 0) { 5553 finishBatchEdit(ims); 5554 } 5555 } 5556 } 5557 5558 void ensureEndedBatchEdit() { 5559 final InputMethodState ims = getEditor().mInputMethodState; 5560 if (ims != null && ims.mBatchEditNesting != 0) { 5561 ims.mBatchEditNesting = 0; 5562 finishBatchEdit(ims); 5563 } 5564 } 5565 5566 void finishBatchEdit(final InputMethodState ims) { 5567 onEndBatchEdit(); 5568 5569 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5570 updateAfterEdit(); 5571 reportExtractedText(); 5572 } else if (ims.mCursorChanged) { 5573 // Cheezy way to get us to report the current cursor location. 5574 invalidateCursor(); 5575 } 5576 } 5577 5578 void updateAfterEdit() { 5579 invalidate(); 5580 int curs = getSelectionStart(); 5581 5582 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5583 registerForPreDraw(); 5584 } 5585 5586 if (curs >= 0) { 5587 getEditor().mHighlightPathBogus = true; 5588 makeBlink(); 5589 bringPointIntoView(curs); 5590 } 5591 5592 checkForResize(); 5593 } 5594 5595 /** 5596 * Called by the framework in response to a request to begin a batch 5597 * of edit operations through a call to link {@link #beginBatchEdit()}. 5598 */ 5599 public void onBeginBatchEdit() { 5600 // intentionally empty 5601 } 5602 5603 /** 5604 * Called by the framework in response to a request to end a batch 5605 * of edit operations through a call to link {@link #endBatchEdit}. 5606 */ 5607 public void onEndBatchEdit() { 5608 // intentionally empty 5609 } 5610 5611 /** 5612 * Called by the framework in response to a private command from the 5613 * current method, provided by it calling 5614 * {@link InputConnection#performPrivateCommand 5615 * InputConnection.performPrivateCommand()}. 5616 * 5617 * @param action The action name of the command. 5618 * @param data Any additional data for the command. This may be null. 5619 * @return Return true if you handled the command, else false. 5620 */ 5621 public boolean onPrivateIMECommand(String action, Bundle data) { 5622 return false; 5623 } 5624 5625 private void nullLayouts() { 5626 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5627 mSavedLayout = (BoringLayout) mLayout; 5628 } 5629 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5630 mSavedHintLayout = (BoringLayout) mHintLayout; 5631 } 5632 5633 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 5634 5635 mBoring = mHintBoring = null; 5636 5637 // Since it depends on the value of mLayout 5638 prepareCursorControllers(); 5639 } 5640 5641 /** 5642 * Make a new Layout based on the already-measured size of the view, 5643 * on the assumption that it was measured correctly at some point. 5644 */ 5645 private void assumeLayout() { 5646 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5647 5648 if (width < 1) { 5649 width = 0; 5650 } 5651 5652 int physicalWidth = width; 5653 5654 if (mHorizontallyScrolling) { 5655 width = VERY_WIDE; 5656 } 5657 5658 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5659 physicalWidth, false); 5660 } 5661 5662 @Override 5663 protected void resetResolvedLayoutDirection() { 5664 super.resetResolvedLayoutDirection(); 5665 5666 if (mLayoutAlignment != null && 5667 (mTextAlign == TEXT_ALIGN.VIEW_START || 5668 mTextAlign == TEXT_ALIGN.VIEW_END)) { 5669 mLayoutAlignment = null; 5670 } 5671 } 5672 5673 private Layout.Alignment getLayoutAlignment() { 5674 if (mLayoutAlignment == null) { 5675 Layout.Alignment alignment; 5676 TEXT_ALIGN textAlign = mTextAlign; 5677 switch (textAlign) { 5678 case INHERIT: 5679 // fall through to gravity temporarily 5680 // intention is to inherit value through view hierarchy. 5681 case GRAVITY: 5682 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 5683 case Gravity.START: 5684 alignment = Layout.Alignment.ALIGN_NORMAL; 5685 break; 5686 case Gravity.END: 5687 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5688 break; 5689 case Gravity.LEFT: 5690 alignment = Layout.Alignment.ALIGN_LEFT; 5691 break; 5692 case Gravity.RIGHT: 5693 alignment = Layout.Alignment.ALIGN_RIGHT; 5694 break; 5695 case Gravity.CENTER_HORIZONTAL: 5696 alignment = Layout.Alignment.ALIGN_CENTER; 5697 break; 5698 default: 5699 alignment = Layout.Alignment.ALIGN_NORMAL; 5700 break; 5701 } 5702 break; 5703 case TEXT_START: 5704 alignment = Layout.Alignment.ALIGN_NORMAL; 5705 break; 5706 case TEXT_END: 5707 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5708 break; 5709 case CENTER: 5710 alignment = Layout.Alignment.ALIGN_CENTER; 5711 break; 5712 case VIEW_START: 5713 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 5714 Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 5715 break; 5716 case VIEW_END: 5717 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 5718 Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 5719 break; 5720 default: 5721 alignment = Layout.Alignment.ALIGN_NORMAL; 5722 break; 5723 } 5724 mLayoutAlignment = alignment; 5725 } 5726 return mLayoutAlignment; 5727 } 5728 5729 /** 5730 * The width passed in is now the desired layout width, 5731 * not the full view width with padding. 5732 * {@hide} 5733 */ 5734 protected void makeNewLayout(int wantWidth, int hintWidth, 5735 BoringLayout.Metrics boring, 5736 BoringLayout.Metrics hintBoring, 5737 int ellipsisWidth, boolean bringIntoView) { 5738 stopMarquee(); 5739 5740 // Update "old" cached values 5741 mOldMaximum = mMaximum; 5742 mOldMaxMode = mMaxMode; 5743 5744 if (mEditor != null) getEditor().mHighlightPathBogus = true; 5745 5746 if (wantWidth < 0) { 5747 wantWidth = 0; 5748 } 5749 if (hintWidth < 0) { 5750 hintWidth = 0; 5751 } 5752 5753 Layout.Alignment alignment = getLayoutAlignment(); 5754 boolean shouldEllipsize = mEllipsize != null && getKeyListener() == null; 5755 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE && 5756 mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 5757 TruncateAt effectiveEllipsize = mEllipsize; 5758 if (mEllipsize == TruncateAt.MARQUEE && 5759 mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 5760 effectiveEllipsize = TruncateAt.END_SMALL; 5761 } 5762 5763 if (mTextDir == null) { 5764 resolveTextDirection(); 5765 } 5766 5767 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 5768 effectiveEllipsize, effectiveEllipsize == mEllipsize); 5769 if (switchEllipsize) { 5770 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ? 5771 TruncateAt.END : TruncateAt.MARQUEE; 5772 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 5773 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 5774 } 5775 5776 shouldEllipsize = mEllipsize != null; 5777 mHintLayout = null; 5778 5779 if (mHint != null) { 5780 if (shouldEllipsize) hintWidth = wantWidth; 5781 5782 if (hintBoring == UNKNOWN_BORING) { 5783 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 5784 mHintBoring); 5785 if (hintBoring != null) { 5786 mHintBoring = hintBoring; 5787 } 5788 } 5789 5790 if (hintBoring != null) { 5791 if (hintBoring.width <= hintWidth && 5792 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5793 if (mSavedHintLayout != null) { 5794 mHintLayout = mSavedHintLayout. 5795 replaceOrMake(mHint, mTextPaint, 5796 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5797 hintBoring, mIncludePad); 5798 } else { 5799 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5800 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5801 hintBoring, mIncludePad); 5802 } 5803 5804 mSavedHintLayout = (BoringLayout) mHintLayout; 5805 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5806 if (mSavedHintLayout != null) { 5807 mHintLayout = mSavedHintLayout. 5808 replaceOrMake(mHint, mTextPaint, 5809 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5810 hintBoring, mIncludePad, mEllipsize, 5811 ellipsisWidth); 5812 } else { 5813 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5814 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5815 hintBoring, mIncludePad, mEllipsize, 5816 ellipsisWidth); 5817 } 5818 } else if (shouldEllipsize) { 5819 mHintLayout = new StaticLayout(mHint, 5820 0, mHint.length(), 5821 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 5822 mSpacingAdd, mIncludePad, mEllipsize, 5823 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 5824 } else { 5825 mHintLayout = new StaticLayout(mHint, mTextPaint, 5826 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 5827 mIncludePad); 5828 } 5829 } else if (shouldEllipsize) { 5830 mHintLayout = new StaticLayout(mHint, 5831 0, mHint.length(), 5832 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 5833 mSpacingAdd, mIncludePad, mEllipsize, 5834 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 5835 } else { 5836 mHintLayout = new StaticLayout(mHint, mTextPaint, 5837 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 5838 mIncludePad); 5839 } 5840 } 5841 5842 if (bringIntoView) { 5843 registerForPreDraw(); 5844 } 5845 5846 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5847 if (!compressText(ellipsisWidth)) { 5848 final int height = mLayoutParams.height; 5849 // If the size of the view does not depend on the size of the text, try to 5850 // start the marquee immediately 5851 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5852 startMarquee(); 5853 } else { 5854 // Defer the start of the marquee until we know our width (see setFrame()) 5855 mRestartMarquee = true; 5856 } 5857 } 5858 } 5859 5860 // CursorControllers need a non-null mLayout 5861 prepareCursorControllers(); 5862 } 5863 5864 private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 5865 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 5866 boolean useSaved) { 5867 Layout result = null; 5868 if (mText instanceof Spannable) { 5869 result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth, 5870 alignment, mTextDir, mSpacingMult, 5871 mSpacingAdd, mIncludePad, getKeyListener() == null ? effectiveEllipsize : null, 5872 ellipsisWidth); 5873 } else { 5874 if (boring == UNKNOWN_BORING) { 5875 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 5876 if (boring != null) { 5877 mBoring = boring; 5878 } 5879 } 5880 5881 if (boring != null) { 5882 if (boring.width <= wantWidth && 5883 (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 5884 if (useSaved && mSavedLayout != null) { 5885 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 5886 wantWidth, alignment, mSpacingMult, mSpacingAdd, 5887 boring, mIncludePad); 5888 } else { 5889 result = BoringLayout.make(mTransformed, mTextPaint, 5890 wantWidth, alignment, mSpacingMult, mSpacingAdd, 5891 boring, mIncludePad); 5892 } 5893 5894 if (useSaved) { 5895 mSavedLayout = (BoringLayout) result; 5896 } 5897 } else if (shouldEllipsize && boring.width <= wantWidth) { 5898 if (useSaved && mSavedLayout != null) { 5899 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 5900 wantWidth, alignment, mSpacingMult, mSpacingAdd, 5901 boring, mIncludePad, effectiveEllipsize, 5902 ellipsisWidth); 5903 } else { 5904 result = BoringLayout.make(mTransformed, mTextPaint, 5905 wantWidth, alignment, mSpacingMult, mSpacingAdd, 5906 boring, mIncludePad, effectiveEllipsize, 5907 ellipsisWidth); 5908 } 5909 } else if (shouldEllipsize) { 5910 result = new StaticLayout(mTransformed, 5911 0, mTransformed.length(), 5912 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 5913 mSpacingAdd, mIncludePad, effectiveEllipsize, 5914 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 5915 } else { 5916 result = new StaticLayout(mTransformed, mTextPaint, 5917 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 5918 mIncludePad); 5919 } 5920 } else if (shouldEllipsize) { 5921 result = new StaticLayout(mTransformed, 5922 0, mTransformed.length(), 5923 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 5924 mSpacingAdd, mIncludePad, effectiveEllipsize, 5925 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 5926 } else { 5927 result = new StaticLayout(mTransformed, mTextPaint, 5928 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 5929 mIncludePad); 5930 } 5931 } 5932 return result; 5933 } 5934 5935 private boolean compressText(float width) { 5936 if (isHardwareAccelerated()) return false; 5937 5938 // Only compress the text if it hasn't been compressed by the previous pass 5939 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5940 mTextPaint.getTextScaleX() == 1.0f) { 5941 final float textWidth = mLayout.getLineWidth(0); 5942 final float overflow = (textWidth + 1.0f - width) / width; 5943 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5944 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5945 post(new Runnable() { 5946 public void run() { 5947 requestLayout(); 5948 } 5949 }); 5950 return true; 5951 } 5952 } 5953 5954 return false; 5955 } 5956 5957 private static int desired(Layout layout) { 5958 int n = layout.getLineCount(); 5959 CharSequence text = layout.getText(); 5960 float max = 0; 5961 5962 // if any line was wrapped, we can't use it. 5963 // but it's ok for the last line not to have a newline 5964 5965 for (int i = 0; i < n - 1; i++) { 5966 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5967 return -1; 5968 } 5969 5970 for (int i = 0; i < n; i++) { 5971 max = Math.max(max, layout.getLineWidth(i)); 5972 } 5973 5974 return (int) FloatMath.ceil(max); 5975 } 5976 5977 /** 5978 * Set whether the TextView includes extra top and bottom padding to make 5979 * room for accents that go above the normal ascent and descent. 5980 * The default is true. 5981 * 5982 * @attr ref android.R.styleable#TextView_includeFontPadding 5983 */ 5984 public void setIncludeFontPadding(boolean includepad) { 5985 if (mIncludePad != includepad) { 5986 mIncludePad = includepad; 5987 5988 if (mLayout != null) { 5989 nullLayouts(); 5990 requestLayout(); 5991 invalidate(); 5992 } 5993 } 5994 } 5995 5996 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5997 5998 @Override 5999 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6000 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6001 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6002 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6003 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6004 6005 int width; 6006 int height; 6007 6008 BoringLayout.Metrics boring = UNKNOWN_BORING; 6009 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 6010 6011 if (mTextDir == null) { 6012 resolveTextDirection(); 6013 } 6014 6015 int des = -1; 6016 boolean fromexisting = false; 6017 6018 if (widthMode == MeasureSpec.EXACTLY) { 6019 // Parent has told us how big to be. So be it. 6020 width = widthSize; 6021 } else { 6022 if (mLayout != null && mEllipsize == null) { 6023 des = desired(mLayout); 6024 } 6025 6026 if (des < 0) { 6027 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6028 if (boring != null) { 6029 mBoring = boring; 6030 } 6031 } else { 6032 fromexisting = true; 6033 } 6034 6035 if (boring == null || boring == UNKNOWN_BORING) { 6036 if (des < 0) { 6037 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 6038 } 6039 6040 width = des; 6041 } else { 6042 width = boring.width; 6043 } 6044 6045 final Drawables dr = mDrawables; 6046 if (dr != null) { 6047 width = Math.max(width, dr.mDrawableWidthTop); 6048 width = Math.max(width, dr.mDrawableWidthBottom); 6049 } 6050 6051 if (mHint != null) { 6052 int hintDes = -1; 6053 int hintWidth; 6054 6055 if (mHintLayout != null && mEllipsize == null) { 6056 hintDes = desired(mHintLayout); 6057 } 6058 6059 if (hintDes < 0) { 6060 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 6061 if (hintBoring != null) { 6062 mHintBoring = hintBoring; 6063 } 6064 } 6065 6066 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 6067 if (hintDes < 0) { 6068 hintDes = (int) FloatMath.ceil( 6069 Layout.getDesiredWidth(mHint, mTextPaint)); 6070 } 6071 6072 hintWidth = hintDes; 6073 } else { 6074 hintWidth = hintBoring.width; 6075 } 6076 6077 if (hintWidth > width) { 6078 width = hintWidth; 6079 } 6080 } 6081 6082 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 6083 6084 if (mMaxWidthMode == EMS) { 6085 width = Math.min(width, mMaxWidth * getLineHeight()); 6086 } else { 6087 width = Math.min(width, mMaxWidth); 6088 } 6089 6090 if (mMinWidthMode == EMS) { 6091 width = Math.max(width, mMinWidth * getLineHeight()); 6092 } else { 6093 width = Math.max(width, mMinWidth); 6094 } 6095 6096 // Check against our minimum width 6097 width = Math.max(width, getSuggestedMinimumWidth()); 6098 6099 if (widthMode == MeasureSpec.AT_MOST) { 6100 width = Math.min(widthSize, width); 6101 } 6102 } 6103 6104 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6105 int unpaddedWidth = want; 6106 6107 if (mHorizontallyScrolling) want = VERY_WIDE; 6108 6109 int hintWant = want; 6110 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 6111 6112 if (mLayout == null) { 6113 makeNewLayout(want, hintWant, boring, hintBoring, 6114 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6115 } else { 6116 final boolean layoutChanged = (mLayout.getWidth() != want) || 6117 (hintWidth != hintWant) || 6118 (mLayout.getEllipsizedWidth() != 6119 width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6120 6121 final boolean widthChanged = (mHint == null) && 6122 (mEllipsize == null) && 6123 (want > mLayout.getWidth()) && 6124 (mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want)); 6125 6126 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 6127 6128 if (layoutChanged || maximumChanged) { 6129 if (!maximumChanged && widthChanged) { 6130 mLayout.increaseWidthTo(want); 6131 } else { 6132 makeNewLayout(want, hintWant, boring, hintBoring, 6133 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6134 } 6135 } else { 6136 // Nothing has changed 6137 } 6138 } 6139 6140 if (heightMode == MeasureSpec.EXACTLY) { 6141 // Parent has told us how big to be. So be it. 6142 height = heightSize; 6143 mDesiredHeightAtMeasure = -1; 6144 } else { 6145 int desired = getDesiredHeight(); 6146 6147 height = desired; 6148 mDesiredHeightAtMeasure = desired; 6149 6150 if (heightMode == MeasureSpec.AT_MOST) { 6151 height = Math.min(desired, heightSize); 6152 } 6153 } 6154 6155 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6156 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 6157 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 6158 } 6159 6160 /* 6161 * We didn't let makeNewLayout() register to bring the cursor into view, 6162 * so do it here if there is any possibility that it is needed. 6163 */ 6164 if (mMovement != null || 6165 mLayout.getWidth() > unpaddedWidth || 6166 mLayout.getHeight() > unpaddedHeight) { 6167 registerForPreDraw(); 6168 } else { 6169 scrollTo(0, 0); 6170 } 6171 6172 setMeasuredDimension(width, height); 6173 } 6174 6175 private int getDesiredHeight() { 6176 return Math.max( 6177 getDesiredHeight(mLayout, true), 6178 getDesiredHeight(mHintLayout, mEllipsize != null)); 6179 } 6180 6181 private int getDesiredHeight(Layout layout, boolean cap) { 6182 if (layout == null) { 6183 return 0; 6184 } 6185 6186 int linecount = layout.getLineCount(); 6187 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 6188 int desired = layout.getLineTop(linecount); 6189 6190 final Drawables dr = mDrawables; 6191 if (dr != null) { 6192 desired = Math.max(desired, dr.mDrawableHeightLeft); 6193 desired = Math.max(desired, dr.mDrawableHeightRight); 6194 } 6195 6196 desired += pad; 6197 6198 if (mMaxMode == LINES) { 6199 /* 6200 * Don't cap the hint to a certain number of lines. 6201 * (Do cap it, though, if we have a maximum pixel height.) 6202 */ 6203 if (cap) { 6204 if (linecount > mMaximum) { 6205 desired = layout.getLineTop(mMaximum); 6206 6207 if (dr != null) { 6208 desired = Math.max(desired, dr.mDrawableHeightLeft); 6209 desired = Math.max(desired, dr.mDrawableHeightRight); 6210 } 6211 6212 desired += pad; 6213 linecount = mMaximum; 6214 } 6215 } 6216 } else { 6217 desired = Math.min(desired, mMaximum); 6218 } 6219 6220 if (mMinMode == LINES) { 6221 if (linecount < mMinimum) { 6222 desired += getLineHeight() * (mMinimum - linecount); 6223 } 6224 } else { 6225 desired = Math.max(desired, mMinimum); 6226 } 6227 6228 // Check against our minimum height 6229 desired = Math.max(desired, getSuggestedMinimumHeight()); 6230 6231 return desired; 6232 } 6233 6234 /** 6235 * Check whether a change to the existing text layout requires a 6236 * new view layout. 6237 */ 6238 private void checkForResize() { 6239 boolean sizeChanged = false; 6240 6241 if (mLayout != null) { 6242 // Check if our width changed 6243 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6244 sizeChanged = true; 6245 invalidate(); 6246 } 6247 6248 // Check if our height changed 6249 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6250 int desiredHeight = getDesiredHeight(); 6251 6252 if (desiredHeight != this.getHeight()) { 6253 sizeChanged = true; 6254 } 6255 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6256 if (mDesiredHeightAtMeasure >= 0) { 6257 int desiredHeight = getDesiredHeight(); 6258 6259 if (desiredHeight != mDesiredHeightAtMeasure) { 6260 sizeChanged = true; 6261 } 6262 } 6263 } 6264 } 6265 6266 if (sizeChanged) { 6267 requestLayout(); 6268 // caller will have already invalidated 6269 } 6270 } 6271 6272 /** 6273 * Check whether entirely new text requires a new view layout 6274 * or merely a new text layout. 6275 */ 6276 private void checkForRelayout() { 6277 // If we have a fixed width, we can just swap in a new text layout 6278 // if the text height stays the same or if the view height is fixed. 6279 6280 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6281 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6282 (mHint == null || mHintLayout != null) && 6283 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6284 // Static width, so try making a new text layout. 6285 6286 int oldht = mLayout.getHeight(); 6287 int want = mLayout.getWidth(); 6288 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6289 6290 /* 6291 * No need to bring the text into view, since the size is not 6292 * changing (unless we do the requestLayout(), in which case it 6293 * will happen at measure). 6294 */ 6295 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6296 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6297 false); 6298 6299 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6300 // In a fixed-height view, so use our new text layout. 6301 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6302 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6303 invalidate(); 6304 return; 6305 } 6306 6307 // Dynamic height, but height has stayed the same, 6308 // so use our new text layout. 6309 if (mLayout.getHeight() == oldht && 6310 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6311 invalidate(); 6312 return; 6313 } 6314 } 6315 6316 // We lose: the height has changed and we have a dynamic height. 6317 // Request a new view layout using our new text layout. 6318 requestLayout(); 6319 invalidate(); 6320 } else { 6321 // Dynamic width, so we have no choice but to request a new 6322 // view layout with a new text layout. 6323 nullLayouts(); 6324 requestLayout(); 6325 invalidate(); 6326 } 6327 } 6328 6329 @Override 6330 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 6331 super.onLayout(changed, left, top, right, bottom); 6332 if (changed && mEditor != null) getEditor().mTextDisplayListIsValid = false; 6333 } 6334 6335 /** 6336 * Returns true if anything changed. 6337 */ 6338 private boolean bringTextIntoView() { 6339 int line = 0; 6340 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6341 line = mLayout.getLineCount() - 1; 6342 } 6343 6344 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6345 int dir = mLayout.getParagraphDirection(line); 6346 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6347 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6348 int ht = mLayout.getHeight(); 6349 6350 int scrollx, scrolly; 6351 6352 // Convert to left, center, or right alignment. 6353 if (a == Layout.Alignment.ALIGN_NORMAL) { 6354 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT : 6355 Layout.Alignment.ALIGN_RIGHT; 6356 } else if (a == Layout.Alignment.ALIGN_OPPOSITE){ 6357 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT : 6358 Layout.Alignment.ALIGN_LEFT; 6359 } 6360 6361 if (a == Layout.Alignment.ALIGN_CENTER) { 6362 /* 6363 * Keep centered if possible, or, if it is too wide to fit, 6364 * keep leading edge in view. 6365 */ 6366 6367 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6368 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6369 6370 if (right - left < hspace) { 6371 scrollx = (right + left) / 2 - hspace / 2; 6372 } else { 6373 if (dir < 0) { 6374 scrollx = right - hspace; 6375 } else { 6376 scrollx = left; 6377 } 6378 } 6379 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 6380 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6381 scrollx = right - hspace; 6382 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 6383 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6384 } 6385 6386 if (ht < vspace) { 6387 scrolly = 0; 6388 } else { 6389 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6390 scrolly = ht - vspace; 6391 } else { 6392 scrolly = 0; 6393 } 6394 } 6395 6396 if (scrollx != mScrollX || scrolly != mScrollY) { 6397 scrollTo(scrollx, scrolly); 6398 return true; 6399 } else { 6400 return false; 6401 } 6402 } 6403 6404 /** 6405 * Move the point, specified by the offset, into the view if it is needed. 6406 * This has to be called after layout. Returns true if anything changed. 6407 */ 6408 public boolean bringPointIntoView(int offset) { 6409 boolean changed = false; 6410 6411 if (mLayout == null) return changed; 6412 6413 int line = mLayout.getLineForOffset(offset); 6414 6415 // FIXME: Is it okay to truncate this, or should we round? 6416 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6417 final int top = mLayout.getLineTop(line); 6418 final int bottom = mLayout.getLineTop(line + 1); 6419 6420 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6421 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6422 int ht = mLayout.getHeight(); 6423 6424 int grav; 6425 6426 switch (mLayout.getParagraphAlignment(line)) { 6427 case ALIGN_LEFT: 6428 grav = 1; 6429 break; 6430 case ALIGN_RIGHT: 6431 grav = -1; 6432 break; 6433 case ALIGN_NORMAL: 6434 grav = mLayout.getParagraphDirection(line); 6435 break; 6436 case ALIGN_OPPOSITE: 6437 grav = -mLayout.getParagraphDirection(line); 6438 break; 6439 case ALIGN_CENTER: 6440 default: 6441 grav = 0; 6442 break; 6443 } 6444 6445 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6446 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6447 6448 int hslack = (bottom - top) / 2; 6449 int vslack = hslack; 6450 6451 if (vslack > vspace / 4) 6452 vslack = vspace / 4; 6453 if (hslack > hspace / 4) 6454 hslack = hspace / 4; 6455 6456 int hs = mScrollX; 6457 int vs = mScrollY; 6458 6459 if (top - vs < vslack) 6460 vs = top - vslack; 6461 if (bottom - vs > vspace - vslack) 6462 vs = bottom - (vspace - vslack); 6463 if (ht - vs < vspace) 6464 vs = ht - vspace; 6465 if (0 - vs > 0) 6466 vs = 0; 6467 6468 if (grav != 0) { 6469 if (x - hs < hslack) { 6470 hs = x - hslack; 6471 } 6472 if (x - hs > hspace - hslack) { 6473 hs = x - (hspace - hslack); 6474 } 6475 } 6476 6477 if (grav < 0) { 6478 if (left - hs > 0) 6479 hs = left; 6480 if (right - hs < hspace) 6481 hs = right - hspace; 6482 } else if (grav > 0) { 6483 if (right - hs < hspace) 6484 hs = right - hspace; 6485 if (left - hs > 0) 6486 hs = left; 6487 } else /* grav == 0 */ { 6488 if (right - left <= hspace) { 6489 /* 6490 * If the entire text fits, center it exactly. 6491 */ 6492 hs = left - (hspace - (right - left)) / 2; 6493 } else if (x > right - hslack) { 6494 /* 6495 * If we are near the right edge, keep the right edge 6496 * at the edge of the view. 6497 */ 6498 hs = right - hspace; 6499 } else if (x < left + hslack) { 6500 /* 6501 * If we are near the left edge, keep the left edge 6502 * at the edge of the view. 6503 */ 6504 hs = left; 6505 } else if (left > hs) { 6506 /* 6507 * Is there whitespace visible at the left? Fix it if so. 6508 */ 6509 hs = left; 6510 } else if (right < hs + hspace) { 6511 /* 6512 * Is there whitespace visible at the right? Fix it if so. 6513 */ 6514 hs = right - hspace; 6515 } else { 6516 /* 6517 * Otherwise, float as needed. 6518 */ 6519 if (x - hs < hslack) { 6520 hs = x - hslack; 6521 } 6522 if (x - hs > hspace - hslack) { 6523 hs = x - (hspace - hslack); 6524 } 6525 } 6526 } 6527 6528 if (hs != mScrollX || vs != mScrollY) { 6529 if (mScroller == null) { 6530 scrollTo(hs, vs); 6531 } else { 6532 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6533 int dx = hs - mScrollX; 6534 int dy = vs - mScrollY; 6535 6536 if (duration > ANIMATED_SCROLL_GAP) { 6537 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6538 awakenScrollBars(mScroller.getDuration()); 6539 invalidate(); 6540 } else { 6541 if (!mScroller.isFinished()) { 6542 mScroller.abortAnimation(); 6543 } 6544 6545 scrollBy(dx, dy); 6546 } 6547 6548 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6549 } 6550 6551 changed = true; 6552 } 6553 6554 if (isFocused()) { 6555 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6556 // requestRectangleOnScreen() is in terms of content coordinates. 6557 6558 // The offsets here are to ensure the rectangle we are using is 6559 // within our view bounds, in case the cursor is on the far left 6560 // or right. If it isn't withing the bounds, then this request 6561 // will be ignored. 6562 if (mTempRect == null) mTempRect = new Rect(); 6563 mTempRect.set(x - 2, top, x + 2, bottom); 6564 getInterestingRect(mTempRect, line); 6565 mTempRect.offset(mScrollX, mScrollY); 6566 6567 if (requestRectangleOnScreen(mTempRect)) { 6568 changed = true; 6569 } 6570 } 6571 6572 return changed; 6573 } 6574 6575 /** 6576 * Move the cursor, if needed, so that it is at an offset that is visible 6577 * to the user. This will not move the cursor if it represents more than 6578 * one character (a selection range). This will only work if the 6579 * TextView contains spannable text; otherwise it will do nothing. 6580 * 6581 * @return True if the cursor was actually moved, false otherwise. 6582 */ 6583 public boolean moveCursorToVisibleOffset() { 6584 if (!(mText instanceof Spannable)) { 6585 return false; 6586 } 6587 int start = getSelectionStart(); 6588 int end = getSelectionEnd(); 6589 if (start != end) { 6590 return false; 6591 } 6592 6593 // First: make sure the line is visible on screen: 6594 6595 int line = mLayout.getLineForOffset(start); 6596 6597 final int top = mLayout.getLineTop(line); 6598 final int bottom = mLayout.getLineTop(line + 1); 6599 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6600 int vslack = (bottom - top) / 2; 6601 if (vslack > vspace / 4) 6602 vslack = vspace / 4; 6603 final int vs = mScrollY; 6604 6605 if (top < (vs+vslack)) { 6606 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6607 } else if (bottom > (vspace+vs-vslack)) { 6608 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6609 } 6610 6611 // Next: make sure the character is visible on screen: 6612 6613 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6614 final int hs = mScrollX; 6615 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6616 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6617 6618 // line might contain bidirectional text 6619 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6620 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6621 6622 int newStart = start; 6623 if (newStart < lowChar) { 6624 newStart = lowChar; 6625 } else if (newStart > highChar) { 6626 newStart = highChar; 6627 } 6628 6629 if (newStart != start) { 6630 Selection.setSelection((Spannable)mText, newStart); 6631 return true; 6632 } 6633 6634 return false; 6635 } 6636 6637 @Override 6638 public void computeScroll() { 6639 if (mScroller != null) { 6640 if (mScroller.computeScrollOffset()) { 6641 mScrollX = mScroller.getCurrX(); 6642 mScrollY = mScroller.getCurrY(); 6643 invalidateParentCaches(); 6644 postInvalidate(); // So we draw again 6645 } 6646 } 6647 } 6648 6649 private void getInterestingRect(Rect r, int line) { 6650 convertFromViewportToContentCoordinates(r); 6651 6652 // Rectangle can can be expanded on first and last line to take 6653 // padding into account. 6654 // TODO Take left/right padding into account too? 6655 if (line == 0) r.top -= getExtendedPaddingTop(); 6656 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6657 } 6658 6659 private void convertFromViewportToContentCoordinates(Rect r) { 6660 final int horizontalOffset = viewportToContentHorizontalOffset(); 6661 r.left += horizontalOffset; 6662 r.right += horizontalOffset; 6663 6664 final int verticalOffset = viewportToContentVerticalOffset(); 6665 r.top += verticalOffset; 6666 r.bottom += verticalOffset; 6667 } 6668 6669 private int viewportToContentHorizontalOffset() { 6670 return getCompoundPaddingLeft() - mScrollX; 6671 } 6672 6673 private int viewportToContentVerticalOffset() { 6674 int offset = getExtendedPaddingTop() - mScrollY; 6675 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6676 offset += getVerticalOffset(false); 6677 } 6678 return offset; 6679 } 6680 6681 @Override 6682 public void debug(int depth) { 6683 super.debug(depth); 6684 6685 String output = debugIndent(depth); 6686 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6687 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6688 + "} "; 6689 6690 if (mText != null) { 6691 6692 output += "mText=\"" + mText + "\" "; 6693 if (mLayout != null) { 6694 output += "mLayout width=" + mLayout.getWidth() 6695 + " height=" + mLayout.getHeight(); 6696 } 6697 } else { 6698 output += "mText=NULL"; 6699 } 6700 Log.d(VIEW_LOG_TAG, output); 6701 } 6702 6703 /** 6704 * Convenience for {@link Selection#getSelectionStart}. 6705 */ 6706 @ViewDebug.ExportedProperty(category = "text") 6707 public int getSelectionStart() { 6708 return Selection.getSelectionStart(getText()); 6709 } 6710 6711 /** 6712 * Convenience for {@link Selection#getSelectionEnd}. 6713 */ 6714 @ViewDebug.ExportedProperty(category = "text") 6715 public int getSelectionEnd() { 6716 return Selection.getSelectionEnd(getText()); 6717 } 6718 6719 /** 6720 * Return true iff there is a selection inside this text view. 6721 */ 6722 public boolean hasSelection() { 6723 final int selectionStart = getSelectionStart(); 6724 final int selectionEnd = getSelectionEnd(); 6725 6726 return selectionStart >= 0 && selectionStart != selectionEnd; 6727 } 6728 6729 /** 6730 * Sets the properties of this field (lines, horizontally scrolling, 6731 * transformation method) to be for a single-line input. 6732 * 6733 * @attr ref android.R.styleable#TextView_singleLine 6734 */ 6735 public void setSingleLine() { 6736 setSingleLine(true); 6737 } 6738 6739 /** 6740 * Sets the properties of this field to transform input to ALL CAPS 6741 * display. This may use a "small caps" formatting if available. 6742 * This setting will be ignored if this field is editable or selectable. 6743 * 6744 * This call replaces the current transformation method. Disabling this 6745 * will not necessarily restore the previous behavior from before this 6746 * was enabled. 6747 * 6748 * @see #setTransformationMethod(TransformationMethod) 6749 * @attr ref android.R.styleable#TextView_textAllCaps 6750 */ 6751 public void setAllCaps(boolean allCaps) { 6752 if (allCaps) { 6753 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 6754 } else { 6755 setTransformationMethod(null); 6756 } 6757 } 6758 6759 /** 6760 * If true, sets the properties of this field (number of lines, horizontally scrolling, 6761 * transformation method) to be for a single-line input; if false, restores these to the default 6762 * conditions. 6763 * 6764 * Note that the default conditions are not necessarily those that were in effect prior this 6765 * method, and you may want to reset these properties to your custom values. 6766 * 6767 * @attr ref android.R.styleable#TextView_singleLine 6768 */ 6769 @android.view.RemotableViewMethod 6770 public void setSingleLine(boolean singleLine) { 6771 // Could be used, but may break backward compatibility. 6772 // if (mSingleLine == singleLine) return; 6773 setInputTypeSingleLine(singleLine); 6774 applySingleLine(singleLine, true, true); 6775 } 6776 6777 /** 6778 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 6779 * @param singleLine 6780 */ 6781 private void setInputTypeSingleLine(boolean singleLine) { 6782 if (mEditor != null && (getEditor().mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 6783 if (singleLine) { 6784 getEditor().mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6785 } else { 6786 getEditor().mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6787 } 6788 } 6789 } 6790 6791 private void applySingleLine(boolean singleLine, boolean applyTransformation, 6792 boolean changeMaxLines) { 6793 mSingleLine = singleLine; 6794 if (singleLine) { 6795 setLines(1); 6796 setHorizontallyScrolling(true); 6797 if (applyTransformation) { 6798 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 6799 } 6800 } else { 6801 if (changeMaxLines) { 6802 setMaxLines(Integer.MAX_VALUE); 6803 } 6804 setHorizontallyScrolling(false); 6805 if (applyTransformation) { 6806 setTransformationMethod(null); 6807 } 6808 } 6809 } 6810 6811 /** 6812 * Causes words in the text that are longer than the view is wide 6813 * to be ellipsized instead of broken in the middle. You may also 6814 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 6815 * to constrain the text to a single line. Use <code>null</code> 6816 * to turn off ellipsizing. 6817 * 6818 * If {@link #setMaxLines} has been used to set two or more lines, 6819 * {@link android.text.TextUtils.TruncateAt#END} and 6820 * {@link android.text.TextUtils.TruncateAt#MARQUEE}* are only supported 6821 * (other ellipsizing types will not do anything). 6822 * 6823 * @attr ref android.R.styleable#TextView_ellipsize 6824 */ 6825 public void setEllipsize(TextUtils.TruncateAt where) { 6826 // TruncateAt is an enum. != comparison is ok between these singleton objects. 6827 if (mEllipsize != where) { 6828 mEllipsize = where; 6829 6830 if (mLayout != null) { 6831 nullLayouts(); 6832 requestLayout(); 6833 invalidate(); 6834 } 6835 } 6836 } 6837 6838 /** 6839 * Sets how many times to repeat the marquee animation. Only applied if the 6840 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 6841 * 6842 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 6843 */ 6844 public void setMarqueeRepeatLimit(int marqueeLimit) { 6845 mMarqueeRepeatLimit = marqueeLimit; 6846 } 6847 6848 /** 6849 * Returns where, if anywhere, words that are longer than the view 6850 * is wide should be ellipsized. 6851 */ 6852 @ViewDebug.ExportedProperty 6853 public TextUtils.TruncateAt getEllipsize() { 6854 return mEllipsize; 6855 } 6856 6857 /** 6858 * Set the TextView so that when it takes focus, all the text is 6859 * selected. 6860 * 6861 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6862 */ 6863 @android.view.RemotableViewMethod 6864 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6865 createEditorIfNeeded("setSelectAllOnFocus"); 6866 getEditor().mSelectAllOnFocus = selectAllOnFocus; 6867 6868 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6869 setText(mText, BufferType.SPANNABLE); 6870 } 6871 } 6872 6873 /** 6874 * Set whether the cursor is visible. The default is true. 6875 * 6876 * @attr ref android.R.styleable#TextView_cursorVisible 6877 */ 6878 @android.view.RemotableViewMethod 6879 public void setCursorVisible(boolean visible) { 6880 if (visible && mEditor == null) return; // visible is the default value with no edit data 6881 createEditorIfNeeded("setCursorVisible"); 6882 if (getEditor().mCursorVisible != visible) { 6883 getEditor().mCursorVisible = visible; 6884 invalidate(); 6885 6886 makeBlink(); 6887 6888 // InsertionPointCursorController depends on mCursorVisible 6889 prepareCursorControllers(); 6890 } 6891 } 6892 6893 private boolean isCursorVisible() { 6894 // The default value is true, even when there is no associated Editor 6895 return mEditor == null ? true : (getEditor().mCursorVisible && isTextEditable()); 6896 } 6897 6898 private boolean canMarquee() { 6899 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6900 return width > 0 && (mLayout.getLineWidth(0) > width || 6901 (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null && 6902 mSavedMarqueeModeLayout.getLineWidth(0) > width)); 6903 } 6904 6905 private void startMarquee() { 6906 // Do not ellipsize EditText 6907 if (getKeyListener() != null) return; 6908 6909 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6910 return; 6911 } 6912 6913 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6914 getLineCount() == 1 && canMarquee()) { 6915 6916 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 6917 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 6918 final Layout tmp = mLayout; 6919 mLayout = mSavedMarqueeModeLayout; 6920 mSavedMarqueeModeLayout = tmp; 6921 setHorizontalFadingEdgeEnabled(true); 6922 requestLayout(); 6923 invalidate(); 6924 } 6925 6926 if (mMarquee == null) mMarquee = new Marquee(this); 6927 mMarquee.start(mMarqueeRepeatLimit); 6928 } 6929 } 6930 6931 private void stopMarquee() { 6932 if (mMarquee != null && !mMarquee.isStopped()) { 6933 mMarquee.stop(); 6934 } 6935 6936 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 6937 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 6938 final Layout tmp = mSavedMarqueeModeLayout; 6939 mSavedMarqueeModeLayout = mLayout; 6940 mLayout = tmp; 6941 setHorizontalFadingEdgeEnabled(false); 6942 requestLayout(); 6943 invalidate(); 6944 } 6945 } 6946 6947 private void startStopMarquee(boolean start) { 6948 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6949 if (start) { 6950 startMarquee(); 6951 } else { 6952 stopMarquee(); 6953 } 6954 } 6955 } 6956 6957 /** 6958 * This method is called when the text is changed, in case any subclasses 6959 * would like to know. 6960 * 6961 * Within <code>text</code>, the <code>lengthAfter</code> characters 6962 * beginning at <code>start</code> have just replaced old text that had 6963 * length <code>lengthBefore</code>. It is an error to attempt to make 6964 * changes to <code>text</code> from this callback. 6965 * 6966 * @param text The text the TextView is displaying 6967 * @param start The offset of the start of the range of the text that was 6968 * modified 6969 * @param lengthBefore The length of the former text that has been replaced 6970 * @param lengthAfter The length of the replacement modified text 6971 */ 6972 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 6973 // intentionally empty, template pattern method can be overridden by subclasses 6974 } 6975 6976 /** 6977 * This method is called when the selection has changed, in case any 6978 * subclasses would like to know. 6979 * 6980 * @param selStart The new selection start location. 6981 * @param selEnd The new selection end location. 6982 */ 6983 protected void onSelectionChanged(int selStart, int selEnd) { 6984 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 6985 // mEditor may be null if selection is created programatically. 6986 createEditorIfNeeded("onSelectionChanged"); 6987 // Invalidate even when selection range is empty, to remove previous highlight 6988 getEditor().mTextDisplayListIsValid = false; 6989 } 6990 6991 /** 6992 * Adds a TextWatcher to the list of those whose methods are called 6993 * whenever this TextView's text changes. 6994 * <p> 6995 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6996 * not called after {@link #setText} calls. Now, doing {@link #setText} 6997 * if there are any text changed listeners forces the buffer type to 6998 * Editable if it would not otherwise be and does call this method. 6999 */ 7000 public void addTextChangedListener(TextWatcher watcher) { 7001 if (mListeners == null) { 7002 mListeners = new ArrayList<TextWatcher>(); 7003 } 7004 7005 mListeners.add(watcher); 7006 } 7007 7008 /** 7009 * Removes the specified TextWatcher from the list of those whose 7010 * methods are called 7011 * whenever this TextView's text changes. 7012 */ 7013 public void removeTextChangedListener(TextWatcher watcher) { 7014 if (mListeners != null) { 7015 int i = mListeners.indexOf(watcher); 7016 7017 if (i >= 0) { 7018 mListeners.remove(i); 7019 } 7020 } 7021 } 7022 7023 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 7024 if (mListeners != null) { 7025 final ArrayList<TextWatcher> list = mListeners; 7026 final int count = list.size(); 7027 for (int i = 0; i < count; i++) { 7028 list.get(i).beforeTextChanged(text, start, before, after); 7029 } 7030 } 7031 7032 // The spans that are inside or intersect the modified region no longer make sense 7033 removeIntersectingSpans(start, start + before, SpellCheckSpan.class); 7034 removeIntersectingSpans(start, start + before, SuggestionSpan.class); 7035 } 7036 7037 // Removes all spans that are inside or actually overlap the start..end range 7038 private <T> void removeIntersectingSpans(int start, int end, Class<T> type) { 7039 if (!(mText instanceof Editable)) return; 7040 Editable text = (Editable) mText; 7041 7042 T[] spans = text.getSpans(start, end, type); 7043 final int length = spans.length; 7044 for (int i = 0; i < length; i++) { 7045 final int s = text.getSpanStart(spans[i]); 7046 final int e = text.getSpanEnd(spans[i]); 7047 // Spans that are adjacent to the edited region will be handled in 7048 // updateSpellCheckSpans. Result depends on what will be added (space or text) 7049 if (e == start || s == end) break; 7050 text.removeSpan(spans[i]); 7051 } 7052 } 7053 7054 /** 7055 * Not private so it can be called from an inner class without going 7056 * through a thunk. 7057 */ 7058 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 7059 if (mListeners != null) { 7060 final ArrayList<TextWatcher> list = mListeners; 7061 final int count = list.size(); 7062 for (int i = 0; i < count; i++) { 7063 list.get(i).onTextChanged(text, start, before, after); 7064 } 7065 } 7066 7067 if (mEditor != null) getEditor().sendOnTextChanged(start, after); 7068 } 7069 7070 /** 7071 * Not private so it can be called from an inner class without going 7072 * through a thunk. 7073 */ 7074 void sendAfterTextChanged(Editable text) { 7075 if (mListeners != null) { 7076 final ArrayList<TextWatcher> list = mListeners; 7077 final int count = list.size(); 7078 for (int i = 0; i < count; i++) { 7079 list.get(i).afterTextChanged(text); 7080 } 7081 } 7082 } 7083 7084 /** 7085 * Not private so it can be called from an inner class without going 7086 * through a thunk. 7087 */ 7088 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 7089 final InputMethodState ims = mEditor == null ? null : getEditor().mInputMethodState; 7090 if (ims == null || ims.mBatchEditNesting == 0) { 7091 updateAfterEdit(); 7092 } 7093 if (ims != null) { 7094 ims.mContentChanged = true; 7095 if (ims.mChangedStart < 0) { 7096 ims.mChangedStart = start; 7097 ims.mChangedEnd = start+before; 7098 } else { 7099 ims.mChangedStart = Math.min(ims.mChangedStart, start); 7100 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 7101 } 7102 ims.mChangedDelta += after-before; 7103 } 7104 7105 sendOnTextChanged(buffer, start, before, after); 7106 onTextChanged(buffer, start, before, after); 7107 } 7108 7109 /** 7110 * Not private so it can be called from an inner class without going 7111 * through a thunk. 7112 */ 7113 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 7114 // XXX Make the start and end move together if this ends up 7115 // spending too much time invalidating. 7116 7117 boolean selChanged = false; 7118 int newSelStart=-1, newSelEnd=-1; 7119 7120 final InputMethodState ims = mEditor == null ? null : getEditor().mInputMethodState; 7121 7122 if (what == Selection.SELECTION_END) { 7123 selChanged = true; 7124 newSelEnd = newStart; 7125 7126 if (oldStart >= 0 || newStart >= 0) { 7127 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 7128 registerForPreDraw(); 7129 makeBlink(); 7130 } 7131 } 7132 7133 if (what == Selection.SELECTION_START) { 7134 selChanged = true; 7135 newSelStart = newStart; 7136 7137 if (oldStart >= 0 || newStart >= 0) { 7138 int end = Selection.getSelectionEnd(buf); 7139 invalidateCursor(end, oldStart, newStart); 7140 } 7141 } 7142 7143 if (selChanged) { 7144 if (mEditor != null) { 7145 getEditor().mHighlightPathBogus = true; 7146 if (!isFocused()) getEditor().mSelectionMoved = true; 7147 } 7148 7149 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 7150 if (newSelStart < 0) { 7151 newSelStart = Selection.getSelectionStart(buf); 7152 } 7153 if (newSelEnd < 0) { 7154 newSelEnd = Selection.getSelectionEnd(buf); 7155 } 7156 onSelectionChanged(newSelStart, newSelEnd); 7157 } 7158 } 7159 7160 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle || 7161 what instanceof CharacterStyle) { 7162 if (ims == null || ims.mBatchEditNesting == 0) { 7163 invalidate(); 7164 if (mEditor != null) getEditor().mHighlightPathBogus = true; 7165 checkForResize(); 7166 } else { 7167 ims.mContentChanged = true; 7168 } 7169 if (mEditor != null) getEditor().mTextDisplayListIsValid = false; 7170 } 7171 7172 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7173 if (mEditor != null) getEditor().mHighlightPathBogus = true; 7174 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7175 ims.mSelectionModeChanged = true; 7176 } 7177 7178 if (Selection.getSelectionStart(buf) >= 0) { 7179 if (ims == null || ims.mBatchEditNesting == 0) { 7180 invalidateCursor(); 7181 } else { 7182 ims.mCursorChanged = true; 7183 } 7184 } 7185 } 7186 7187 if (what instanceof ParcelableSpan) { 7188 // If this is a span that can be sent to a remote process, 7189 // the current extract editor would be interested in it. 7190 if (ims != null && ims.mExtracting != null) { 7191 if (ims.mBatchEditNesting != 0) { 7192 if (oldStart >= 0) { 7193 if (ims.mChangedStart > oldStart) { 7194 ims.mChangedStart = oldStart; 7195 } 7196 if (ims.mChangedStart > oldEnd) { 7197 ims.mChangedStart = oldEnd; 7198 } 7199 } 7200 if (newStart >= 0) { 7201 if (ims.mChangedStart > newStart) { 7202 ims.mChangedStart = newStart; 7203 } 7204 if (ims.mChangedStart > newEnd) { 7205 ims.mChangedStart = newEnd; 7206 } 7207 } 7208 } else { 7209 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7210 + oldStart + "-" + oldEnd + "," 7211 + newStart + "-" + newEnd + what); 7212 ims.mContentChanged = true; 7213 } 7214 } 7215 } 7216 7217 if (mEditor != null && getEditor().mSpellChecker != null && newStart < 0 && what instanceof SpellCheckSpan) { 7218 getEditor().mSpellChecker.removeSpellCheckSpan((SpellCheckSpan) what); 7219 } 7220 } 7221 7222 /** 7223 * Create new SpellCheckSpans on the modified region. 7224 */ 7225 private void updateSpellCheckSpans(int start, int end, boolean createSpellChecker) { 7226 if (isTextEditable() && isSuggestionsEnabled() && !(this instanceof ExtractEditText)) { 7227 if (getEditor().mSpellChecker == null && createSpellChecker) { 7228 getEditor().mSpellChecker = new SpellChecker(this); 7229 } 7230 if (getEditor().mSpellChecker != null) { 7231 getEditor().mSpellChecker.spellCheck(start, end); 7232 } 7233 } 7234 } 7235 7236 /** 7237 * @hide 7238 */ 7239 @Override 7240 public void dispatchFinishTemporaryDetach() { 7241 mDispatchTemporaryDetach = true; 7242 super.dispatchFinishTemporaryDetach(); 7243 mDispatchTemporaryDetach = false; 7244 } 7245 7246 @Override 7247 public void onStartTemporaryDetach() { 7248 super.onStartTemporaryDetach(); 7249 // Only track when onStartTemporaryDetach() is called directly, 7250 // usually because this instance is an editable field in a list 7251 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7252 7253 // Because of View recycling in ListView, there is no easy way to know when a TextView with 7254 // selection becomes visible again. Until a better solution is found, stop text selection 7255 // mode (if any) as soon as this TextView is recycled. 7256 if (mEditor != null) hideControllers(); 7257 } 7258 7259 @Override 7260 public void onFinishTemporaryDetach() { 7261 super.onFinishTemporaryDetach(); 7262 // Only track when onStartTemporaryDetach() is called directly, 7263 // usually because this instance is an editable field in a list 7264 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7265 } 7266 7267 @Override 7268 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7269 if (mTemporaryDetach) { 7270 // If we are temporarily in the detach state, then do nothing. 7271 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7272 return; 7273 } 7274 7275 if (mEditor != null) getEditor().onFocusChanged(focused, direction); 7276 7277 if (focused) { 7278 if (mText instanceof Spannable) { 7279 Spannable sp = (Spannable) mText; 7280 MetaKeyKeyListener.resetMetaState(sp); 7281 } 7282 } 7283 7284 startStopMarquee(focused); 7285 7286 if (mTransformation != null) { 7287 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7288 } 7289 7290 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7291 } 7292 7293 @Override 7294 public void onWindowFocusChanged(boolean hasWindowFocus) { 7295 super.onWindowFocusChanged(hasWindowFocus); 7296 7297 if (mEditor != null) getEditor().onWindowFocusChanged(hasWindowFocus); 7298 7299 startStopMarquee(hasWindowFocus); 7300 } 7301 7302 @Override 7303 protected void onVisibilityChanged(View changedView, int visibility) { 7304 super.onVisibilityChanged(changedView, visibility); 7305 if (mEditor != null && visibility != VISIBLE) { 7306 hideControllers(); 7307 } 7308 } 7309 7310 /** 7311 * Use {@link BaseInputConnection#removeComposingSpans 7312 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7313 * state from this text view. 7314 */ 7315 public void clearComposingText() { 7316 if (mText instanceof Spannable) { 7317 BaseInputConnection.removeComposingSpans((Spannable)mText); 7318 } 7319 } 7320 7321 @Override 7322 public void setSelected(boolean selected) { 7323 boolean wasSelected = isSelected(); 7324 7325 super.setSelected(selected); 7326 7327 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7328 if (selected) { 7329 startMarquee(); 7330 } else { 7331 stopMarquee(); 7332 } 7333 } 7334 } 7335 7336 @Override 7337 public boolean onTouchEvent(MotionEvent event) { 7338 final int action = event.getActionMasked(); 7339 7340 if (mEditor != null) getEditor().onTouchEvent(event); 7341 7342 final boolean superResult = super.onTouchEvent(event); 7343 7344 /* 7345 * Don't handle the release after a long press, because it will 7346 * move the selection away from whatever the menu action was 7347 * trying to affect. 7348 */ 7349 if (mEditor != null && getEditor().mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7350 getEditor().mDiscardNextActionUp = false; 7351 return superResult; 7352 } 7353 7354 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) && 7355 (mEditor == null || !getEditor().mIgnoreActionUpEvent) && isFocused(); 7356 7357 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7358 && mText instanceof Spannable && mLayout != null) { 7359 boolean handled = false; 7360 7361 if (mMovement != null) { 7362 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7363 } 7364 7365 final boolean textIsSelectable = isTextSelectable(); 7366 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && textIsSelectable) { 7367 // The LinkMovementMethod which should handle taps on links has not been installed 7368 // on non editable text that support text selection. 7369 // We reproduce its behavior here to open links for these. 7370 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7371 getSelectionEnd(), ClickableSpan.class); 7372 7373 if (links.length > 0) { 7374 links[0].onClick(this); 7375 handled = true; 7376 } 7377 } 7378 7379 if (touchIsFinished && (isTextEditable() || textIsSelectable)) { 7380 // Show the IME, except when selecting in read-only text. 7381 final InputMethodManager imm = InputMethodManager.peekInstance(); 7382 viewClicked(imm); 7383 if (!textIsSelectable) { 7384 handled |= imm != null && imm.showSoftInput(this, 0); 7385 } 7386 7387 boolean selectAllGotFocus = getEditor().mSelectAllOnFocus && didTouchFocusSelect(); 7388 hideControllers(); 7389 if (!selectAllGotFocus && mText.length() > 0) { 7390 // Move cursor 7391 final int offset = getOffsetForPosition(event.getX(), event.getY()); 7392 Selection.setSelection((Spannable) mText, offset); 7393 if (getEditor().mSpellChecker != null) { 7394 // When the cursor moves, the word that was typed may need spell check 7395 getEditor().mSpellChecker.onSelectionChanged(); 7396 } 7397 if (!extractedTextModeWillBeStarted()) { 7398 if (isCursorInsideEasyCorrectionSpan()) { 7399 getEditor().mShowSuggestionRunnable = new Runnable() { 7400 public void run() { 7401 showSuggestions(); 7402 } 7403 }; 7404 // removeCallbacks is performed on every touch 7405 postDelayed(getEditor().mShowSuggestionRunnable, 7406 ViewConfiguration.getDoubleTapTimeout()); 7407 } else if (hasInsertionController()) { 7408 getInsertionController().show(); 7409 } 7410 } 7411 } 7412 7413 handled = true; 7414 } 7415 7416 if (handled) { 7417 return true; 7418 } 7419 } 7420 7421 return superResult; 7422 } 7423 7424 /** 7425 * @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}. 7426 */ 7427 private boolean isCursorInsideSuggestionSpan() { 7428 if (!(mText instanceof Spannable)) return false; 7429 7430 SuggestionSpan[] suggestionSpans = ((Spannable) mText).getSpans(getSelectionStart(), 7431 getSelectionEnd(), SuggestionSpan.class); 7432 return (suggestionSpans.length > 0); 7433 } 7434 7435 /** 7436 * @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with 7437 * {@link SuggestionSpan#FLAG_EASY_CORRECT} set. 7438 */ 7439 private boolean isCursorInsideEasyCorrectionSpan() { 7440 Spannable spannable = (Spannable) mText; 7441 SuggestionSpan[] suggestionSpans = spannable.getSpans(getSelectionStart(), 7442 getSelectionEnd(), SuggestionSpan.class); 7443 for (int i = 0; i < suggestionSpans.length; i++) { 7444 if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) { 7445 return true; 7446 } 7447 } 7448 return false; 7449 } 7450 7451 /** 7452 * Downgrades to simple suggestions all the easy correction spans that are not a spell check 7453 * span. 7454 */ 7455 private void downgradeEasyCorrectionSpans() { 7456 if (mText instanceof Spannable) { 7457 Spannable spannable = (Spannable) mText; 7458 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, 7459 spannable.length(), SuggestionSpan.class); 7460 for (int i = 0; i < suggestionSpans.length; i++) { 7461 int flags = suggestionSpans[i].getFlags(); 7462 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 7463 && (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) { 7464 flags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 7465 suggestionSpans[i].setFlags(flags); 7466 } 7467 } 7468 } 7469 } 7470 7471 @Override 7472 public boolean onGenericMotionEvent(MotionEvent event) { 7473 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 7474 try { 7475 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 7476 return true; 7477 } 7478 } catch (AbstractMethodError ex) { 7479 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 7480 // Ignore its absence in case third party applications implemented the 7481 // interface directly. 7482 } 7483 } 7484 return super.onGenericMotionEvent(event); 7485 } 7486 7487 private void prepareCursorControllers() { 7488 if (mEditor == null) return; 7489 7490 boolean windowSupportsHandles = false; 7491 7492 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 7493 if (params instanceof WindowManager.LayoutParams) { 7494 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 7495 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 7496 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 7497 } 7498 7499 getEditor().mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 7500 getEditor().mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 7501 mLayout != null; 7502 7503 if (!getEditor().mInsertionControllerEnabled) { 7504 hideInsertionPointCursorController(); 7505 if (getEditor().mInsertionPointCursorController != null) { 7506 getEditor().mInsertionPointCursorController.onDetached(); 7507 getEditor().mInsertionPointCursorController = null; 7508 } 7509 } 7510 7511 if (!getEditor().mSelectionControllerEnabled) { 7512 stopSelectionActionMode(); 7513 if (getEditor().mSelectionModifierCursorController != null) { 7514 getEditor().mSelectionModifierCursorController.onDetached(); 7515 getEditor().mSelectionModifierCursorController = null; 7516 } 7517 } 7518 } 7519 7520 /** 7521 * @return True iff this TextView contains a text that can be edited, or if this is 7522 * a selectable TextView. 7523 */ 7524 private boolean isTextEditable() { 7525 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 7526 } 7527 7528 /** 7529 * Returns true, only while processing a touch gesture, if the initial 7530 * touch down event caused focus to move to the text view and as a result 7531 * its selection changed. Only valid while processing the touch gesture 7532 * of interest. 7533 */ 7534 public boolean didTouchFocusSelect() { 7535 return mEditor != null && getEditor().mTouchFocusSelected; 7536 } 7537 7538 @Override 7539 public void cancelLongPress() { 7540 super.cancelLongPress(); 7541 if (mEditor != null) getEditor().mIgnoreActionUpEvent = true; 7542 } 7543 7544 @Override 7545 public boolean onTrackballEvent(MotionEvent event) { 7546 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 7547 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 7548 return true; 7549 } 7550 } 7551 7552 return super.onTrackballEvent(event); 7553 } 7554 7555 public void setScroller(Scroller s) { 7556 mScroller = s; 7557 } 7558 7559 /** 7560 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 7561 */ 7562 private boolean shouldBlink() { 7563 if (mEditor == null || !isCursorVisible() || !isFocused()) return false; 7564 7565 final int start = getSelectionStart(); 7566 if (start < 0) return false; 7567 7568 final int end = getSelectionEnd(); 7569 if (end < 0) return false; 7570 7571 return start == end; 7572 } 7573 7574 private void makeBlink() { 7575 if (shouldBlink()) { 7576 getEditor().mShowCursor = SystemClock.uptimeMillis(); 7577 if (getEditor().mBlink == null) getEditor().mBlink = new Blink(this); 7578 getEditor().mBlink.removeCallbacks(getEditor().mBlink); 7579 getEditor().mBlink.postAtTime(getEditor().mBlink, getEditor().mShowCursor + BLINK); 7580 } else { 7581 if (mEditor != null && getEditor().mBlink != null) getEditor().mBlink.removeCallbacks(getEditor().mBlink); 7582 } 7583 } 7584 7585 @Override 7586 protected float getLeftFadingEdgeStrength() { 7587 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7588 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 7589 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7590 if (mMarquee != null && !mMarquee.isStopped()) { 7591 final Marquee marquee = mMarquee; 7592 if (marquee.shouldDrawLeftFade()) { 7593 return marquee.mScroll / getHorizontalFadingEdgeLength(); 7594 } else { 7595 return 0.0f; 7596 } 7597 } else if (getLineCount() == 1) { 7598 final int layoutDirection = getResolvedLayoutDirection(); 7599 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 7600 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7601 case Gravity.LEFT: 7602 return 0.0f; 7603 case Gravity.RIGHT: 7604 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7605 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7606 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7607 case Gravity.CENTER_HORIZONTAL: 7608 return 0.0f; 7609 } 7610 } 7611 } 7612 return super.getLeftFadingEdgeStrength(); 7613 } 7614 7615 @Override 7616 protected float getRightFadingEdgeStrength() { 7617 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7618 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 7619 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7620 if (mMarquee != null && !mMarquee.isStopped()) { 7621 final Marquee marquee = mMarquee; 7622 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 7623 } else if (getLineCount() == 1) { 7624 final int layoutDirection = getResolvedLayoutDirection(); 7625 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 7626 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7627 case Gravity.LEFT: 7628 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7629 getCompoundPaddingRight(); 7630 final float lineWidth = mLayout.getLineWidth(0); 7631 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7632 case Gravity.RIGHT: 7633 return 0.0f; 7634 case Gravity.CENTER_HORIZONTAL: 7635 case Gravity.FILL_HORIZONTAL: 7636 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7637 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7638 getHorizontalFadingEdgeLength(); 7639 } 7640 } 7641 } 7642 return super.getRightFadingEdgeStrength(); 7643 } 7644 7645 @Override 7646 protected int computeHorizontalScrollRange() { 7647 if (mLayout != null) { 7648 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7649 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7650 } 7651 7652 return super.computeHorizontalScrollRange(); 7653 } 7654 7655 @Override 7656 protected int computeVerticalScrollRange() { 7657 if (mLayout != null) 7658 return mLayout.getHeight(); 7659 7660 return super.computeVerticalScrollRange(); 7661 } 7662 7663 @Override 7664 protected int computeVerticalScrollExtent() { 7665 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7666 } 7667 7668 @Override 7669 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 7670 super.findViewsWithText(outViews, searched, flags); 7671 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 7672 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 7673 String searchedLowerCase = searched.toString().toLowerCase(); 7674 String textLowerCase = mText.toString().toLowerCase(); 7675 if (textLowerCase.contains(searchedLowerCase)) { 7676 outViews.add(this); 7677 } 7678 } 7679 } 7680 7681 public enum BufferType { 7682 NORMAL, SPANNABLE, EDITABLE, 7683 } 7684 7685 /** 7686 * Returns the TextView_textColor attribute from the 7687 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7688 * from the TextView_textAppearance attribute, if TextView_textColor 7689 * was not set directly. 7690 */ 7691 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7692 ColorStateList colors; 7693 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7694 TextView_textColor); 7695 7696 if (colors == null) { 7697 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7698 TextView_textAppearance, -1); 7699 if (ap != -1) { 7700 TypedArray appearance; 7701 appearance = context.obtainStyledAttributes(ap, 7702 com.android.internal.R.styleable.TextAppearance); 7703 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7704 TextAppearance_textColor); 7705 appearance.recycle(); 7706 } 7707 } 7708 7709 return colors; 7710 } 7711 7712 /** 7713 * Returns the default color from the TextView_textColor attribute 7714 * from the AttributeSet, if set, or the default color from the 7715 * TextAppearance_textColor from the TextView_textAppearance attribute, 7716 * if TextView_textColor was not set directly. 7717 */ 7718 public static int getTextColor(Context context, 7719 TypedArray attrs, 7720 int def) { 7721 ColorStateList colors = getTextColors(context, attrs); 7722 7723 if (colors == null) { 7724 return def; 7725 } else { 7726 return colors.getDefaultColor(); 7727 } 7728 } 7729 7730 @Override 7731 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7732 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 7733 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 7734 switch (keyCode) { 7735 case KeyEvent.KEYCODE_A: 7736 if (canSelectText()) { 7737 return onTextContextMenuItem(ID_SELECT_ALL); 7738 } 7739 break; 7740 case KeyEvent.KEYCODE_X: 7741 if (canCut()) { 7742 return onTextContextMenuItem(ID_CUT); 7743 } 7744 break; 7745 case KeyEvent.KEYCODE_C: 7746 if (canCopy()) { 7747 return onTextContextMenuItem(ID_COPY); 7748 } 7749 break; 7750 case KeyEvent.KEYCODE_V: 7751 if (canPaste()) { 7752 return onTextContextMenuItem(ID_PASTE); 7753 } 7754 break; 7755 } 7756 } 7757 return super.onKeyShortcut(keyCode, event); 7758 } 7759 7760 /** 7761 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 7762 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 7763 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 7764 */ 7765 private boolean canSelectText() { 7766 return hasSelectionController() && mText.length() != 0; 7767 } 7768 7769 /** 7770 * Test based on the <i>intrinsic</i> charateristics of the TextView. 7771 * The text must be spannable and the movement method must allow for arbitary selection. 7772 * 7773 * See also {@link #canSelectText()}. 7774 */ 7775 private boolean textCanBeSelected() { 7776 // prepareCursorController() relies on this method. 7777 // If you change this condition, make sure prepareCursorController is called anywhere 7778 // the value of this condition might be changed. 7779 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 7780 return isTextEditable() || (isTextSelectable() && mText instanceof Spannable && isEnabled()); 7781 } 7782 7783 private boolean canCut() { 7784 if (hasPasswordTransformationMethod()) { 7785 return false; 7786 } 7787 7788 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mEditor != null && getEditor().mKeyListener != null) { 7789 return true; 7790 } 7791 7792 return false; 7793 } 7794 7795 private boolean canCopy() { 7796 if (hasPasswordTransformationMethod()) { 7797 return false; 7798 } 7799 7800 if (mText.length() > 0 && hasSelection()) { 7801 return true; 7802 } 7803 7804 return false; 7805 } 7806 7807 private boolean canPaste() { 7808 return (mText instanceof Editable && 7809 mEditor != null && getEditor().mKeyListener != null && 7810 getSelectionStart() >= 0 && 7811 getSelectionEnd() >= 0 && 7812 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7813 hasPrimaryClip()); 7814 } 7815 7816 private static long packRangeInLong(int start, int end) { 7817 return (((long) start) << 32) | end; 7818 } 7819 7820 private static int extractRangeStartFromLong(long range) { 7821 return (int) (range >>> 32); 7822 } 7823 7824 private static int extractRangeEndFromLong(long range) { 7825 return (int) (range & 0x00000000FFFFFFFFL); 7826 } 7827 7828 private boolean selectAll() { 7829 final int length = mText.length(); 7830 Selection.setSelection((Spannable) mText, 0, length); 7831 return length > 0; 7832 } 7833 7834 /** 7835 * Adjusts selection to the word under last touch offset. 7836 * Return true if the operation was successfully performed. 7837 */ 7838 private boolean selectCurrentWord() { 7839 if (!canSelectText()) { 7840 return false; 7841 } 7842 7843 if (hasPasswordTransformationMethod()) { 7844 // Always select all on a password field. 7845 // Cut/copy menu entries are not available for passwords, but being able to select all 7846 // is however useful to delete or paste to replace the entire content. 7847 return selectAll(); 7848 } 7849 7850 int inputType = getInputType(); 7851 int klass = inputType & InputType.TYPE_MASK_CLASS; 7852 int variation = inputType & InputType.TYPE_MASK_VARIATION; 7853 7854 // Specific text field types: select the entire text for these 7855 if (klass == InputType.TYPE_CLASS_NUMBER || 7856 klass == InputType.TYPE_CLASS_PHONE || 7857 klass == InputType.TYPE_CLASS_DATETIME || 7858 variation == InputType.TYPE_TEXT_VARIATION_URI || 7859 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7860 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 7861 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7862 return selectAll(); 7863 } 7864 7865 long lastTouchOffsets = getLastTouchOffsets(); 7866 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 7867 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 7868 7869 // Safety check in case standard touch event handling has been bypassed 7870 if (minOffset < 0 || minOffset >= mText.length()) return false; 7871 if (maxOffset < 0 || maxOffset >= mText.length()) return false; 7872 7873 int selectionStart, selectionEnd; 7874 7875 // If a URLSpan (web address, email, phone...) is found at that position, select it. 7876 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 7877 if (urlSpans.length >= 1) { 7878 URLSpan urlSpan = urlSpans[0]; 7879 selectionStart = ((Spanned) mText).getSpanStart(urlSpan); 7880 selectionEnd = ((Spanned) mText).getSpanEnd(urlSpan); 7881 } else { 7882 final WordIterator wordIterator = getWordIterator(); 7883 wordIterator.setCharSequence(mText, minOffset, maxOffset); 7884 7885 selectionStart = wordIterator.getBeginning(minOffset); 7886 selectionEnd = wordIterator.getEnd(maxOffset); 7887 7888 if (selectionStart == BreakIterator.DONE || selectionEnd == BreakIterator.DONE || 7889 selectionStart == selectionEnd) { 7890 // Possible when the word iterator does not properly handle the text's language 7891 long range = getCharRange(minOffset); 7892 selectionStart = extractRangeStartFromLong(range); 7893 selectionEnd = extractRangeEndFromLong(range); 7894 } 7895 } 7896 7897 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7898 return selectionEnd > selectionStart; 7899 } 7900 7901 /** 7902 * This is a temporary method. Future versions may support multi-locale text. 7903 * 7904 * @return The locale that should be used for a word iterator and a spell checker 7905 * in this TextView, based on the current spell checker settings, 7906 * the current IME's locale, or the system default locale. 7907 * @hide 7908 */ 7909 public Locale getTextServicesLocale() { 7910 Locale locale = Locale.getDefault(); 7911 final TextServicesManager textServicesManager = (TextServicesManager) 7912 mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE); 7913 final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true); 7914 if (subtype != null) { 7915 locale = new Locale(subtype.getLocale()); 7916 } 7917 return locale; 7918 } 7919 7920 void onLocaleChanged() { 7921 // Will be re-created on demand in getWordIterator with the proper new locale 7922 getEditor().mWordIterator = null; 7923 } 7924 7925 /** 7926 * @hide 7927 */ 7928 public WordIterator getWordIterator() { 7929 if (getEditor().mWordIterator == null) { 7930 getEditor().mWordIterator = new WordIterator(getTextServicesLocale()); 7931 } 7932 return getEditor().mWordIterator; 7933 } 7934 7935 private long getCharRange(int offset) { 7936 final int textLength = mText.length(); 7937 if (offset + 1 < textLength) { 7938 final char currentChar = mText.charAt(offset); 7939 final char nextChar = mText.charAt(offset + 1); 7940 if (Character.isSurrogatePair(currentChar, nextChar)) { 7941 return packRangeInLong(offset, offset + 2); 7942 } 7943 } 7944 if (offset < textLength) { 7945 return packRangeInLong(offset, offset + 1); 7946 } 7947 if (offset - 2 >= 0) { 7948 final char previousChar = mText.charAt(offset - 1); 7949 final char previousPreviousChar = mText.charAt(offset - 2); 7950 if (Character.isSurrogatePair(previousPreviousChar, previousChar)) { 7951 return packRangeInLong(offset - 2, offset); 7952 } 7953 } 7954 if (offset - 1 >= 0) { 7955 return packRangeInLong(offset - 1, offset); 7956 } 7957 return packRangeInLong(offset, offset); 7958 } 7959 7960 private long getLastTouchOffsets() { 7961 SelectionModifierCursorController selectionController = getSelectionController(); 7962 final int minOffset = selectionController.getMinTouchOffset(); 7963 final int maxOffset = selectionController.getMaxTouchOffset(); 7964 return packRangeInLong(minOffset, maxOffset); 7965 } 7966 7967 @Override 7968 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 7969 super.onPopulateAccessibilityEvent(event); 7970 7971 final boolean isPassword = hasPasswordTransformationMethod(); 7972 if (!isPassword) { 7973 CharSequence text = getTextForAccessibility(); 7974 if (!TextUtils.isEmpty(text)) { 7975 event.getText().add(text); 7976 } 7977 } 7978 } 7979 7980 @Override 7981 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 7982 super.onInitializeAccessibilityEvent(event); 7983 7984 event.setClassName(TextView.class.getName()); 7985 final boolean isPassword = hasPasswordTransformationMethod(); 7986 event.setPassword(isPassword); 7987 7988 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 7989 event.setFromIndex(Selection.getSelectionStart(mText)); 7990 event.setToIndex(Selection.getSelectionEnd(mText)); 7991 event.setItemCount(mText.length()); 7992 } 7993 } 7994 7995 @Override 7996 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 7997 super.onInitializeAccessibilityNodeInfo(info); 7998 7999 info.setClassName(TextView.class.getName()); 8000 final boolean isPassword = hasPasswordTransformationMethod(); 8001 info.setPassword(isPassword); 8002 8003 if (!isPassword) { 8004 info.setText(getTextForAccessibility()); 8005 } 8006 } 8007 8008 @Override 8009 public void sendAccessibilityEvent(int eventType) { 8010 // Do not send scroll events since first they are not interesting for 8011 // accessibility and second such events a generated too frequently. 8012 // For details see the implementation of bringTextIntoView(). 8013 if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 8014 return; 8015 } 8016 super.sendAccessibilityEvent(eventType); 8017 } 8018 8019 /** 8020 * Gets the text reported for accessibility purposes. It is the 8021 * text if not empty or the hint. 8022 * 8023 * @return The accessibility text. 8024 */ 8025 private CharSequence getTextForAccessibility() { 8026 CharSequence text = getText(); 8027 if (TextUtils.isEmpty(text)) { 8028 text = getHint(); 8029 } 8030 return text; 8031 } 8032 8033 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 8034 int fromIndex, int removedCount, int addedCount) { 8035 AccessibilityEvent event = 8036 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 8037 event.setFromIndex(fromIndex); 8038 event.setRemovedCount(removedCount); 8039 event.setAddedCount(addedCount); 8040 event.setBeforeText(beforeText); 8041 sendAccessibilityEventUnchecked(event); 8042 } 8043 8044 /** 8045 * Returns whether this text view is a current input method target. The 8046 * default implementation just checks with {@link InputMethodManager}. 8047 */ 8048 public boolean isInputMethodTarget() { 8049 InputMethodManager imm = InputMethodManager.peekInstance(); 8050 return imm != null && imm.isActive(this); 8051 } 8052 8053 // Selection context mode 8054 private static final int ID_SELECT_ALL = android.R.id.selectAll; 8055 private static final int ID_CUT = android.R.id.cut; 8056 private static final int ID_COPY = android.R.id.copy; 8057 private static final int ID_PASTE = android.R.id.paste; 8058 8059 /** 8060 * Called when a context menu option for the text view is selected. Currently 8061 * this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut}, 8062 * {@link android.R.id#copy} or {@link android.R.id#paste}. 8063 * 8064 * @return true if the context menu item action was performed. 8065 */ 8066 public boolean onTextContextMenuItem(int id) { 8067 int min = 0; 8068 int max = mText.length(); 8069 8070 if (isFocused()) { 8071 final int selStart = getSelectionStart(); 8072 final int selEnd = getSelectionEnd(); 8073 8074 min = Math.max(0, Math.min(selStart, selEnd)); 8075 max = Math.max(0, Math.max(selStart, selEnd)); 8076 } 8077 8078 switch (id) { 8079 case ID_SELECT_ALL: 8080 // This does not enter text selection mode. Text is highlighted, so that it can be 8081 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 8082 selectAll(); 8083 return true; 8084 8085 case ID_PASTE: 8086 paste(min, max); 8087 return true; 8088 8089 case ID_CUT: 8090 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 8091 deleteText_internal(min, max); 8092 stopSelectionActionMode(); 8093 return true; 8094 8095 case ID_COPY: 8096 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 8097 stopSelectionActionMode(); 8098 return true; 8099 } 8100 return false; 8101 } 8102 8103 private CharSequence getTransformedText(int start, int end) { 8104 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 8105 } 8106 8107 /** 8108 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 8109 * by [min, max] when replacing this region by paste. 8110 * Note that if there were two spaces (or more) at that position before, they are kept. We just 8111 * make sure we do not add an extra one from the paste content. 8112 */ 8113 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 8114 if (paste.length() > 0) { 8115 if (min > 0) { 8116 final char charBefore = mTransformed.charAt(min - 1); 8117 final char charAfter = paste.charAt(0); 8118 8119 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8120 // Two spaces at beginning of paste: remove one 8121 final int originalLength = mText.length(); 8122 deleteText_internal(min - 1, min); 8123 // Due to filters, there is no guarantee that exactly one character was 8124 // removed: count instead. 8125 final int delta = mText.length() - originalLength; 8126 min += delta; 8127 max += delta; 8128 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8129 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8130 // No space at beginning of paste: add one 8131 final int originalLength = mText.length(); 8132 replaceText_internal(min, min, " "); 8133 // Taking possible filters into account as above. 8134 final int delta = mText.length() - originalLength; 8135 min += delta; 8136 max += delta; 8137 } 8138 } 8139 8140 if (max < mText.length()) { 8141 final char charBefore = paste.charAt(paste.length() - 1); 8142 final char charAfter = mTransformed.charAt(max); 8143 8144 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8145 // Two spaces at end of paste: remove one 8146 deleteText_internal(max, max + 1); 8147 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8148 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8149 // No space at end of paste: add one 8150 replaceText_internal(max, max, " "); 8151 } 8152 } 8153 } 8154 8155 return packRangeInLong(min, max); 8156 } 8157 8158 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 8159 TextView shadowView = (TextView) inflate(mContext, 8160 com.android.internal.R.layout.text_drag_thumbnail, null); 8161 8162 if (shadowView == null) { 8163 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 8164 } 8165 8166 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 8167 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 8168 } 8169 shadowView.setText(text); 8170 shadowView.setTextColor(getTextColors()); 8171 8172 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 8173 shadowView.setGravity(Gravity.CENTER); 8174 8175 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8176 ViewGroup.LayoutParams.WRAP_CONTENT)); 8177 8178 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8179 shadowView.measure(size, size); 8180 8181 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 8182 shadowView.invalidate(); 8183 return new DragShadowBuilder(shadowView); 8184 } 8185 8186 @Override 8187 public boolean performLongClick() { 8188 boolean handled = false; 8189 boolean vibrate = true; 8190 8191 if (super.performLongClick()) { 8192 handled = true; 8193 } 8194 8195 // Long press in empty space moves cursor and shows the Paste affordance if available. 8196 if (!handled && mEditor != null && !isPositionOnText(getEditor().mLastDownPositionX, getEditor().mLastDownPositionY) && 8197 getEditor().mInsertionControllerEnabled) { 8198 final int offset = getOffsetForPosition(getEditor().mLastDownPositionX, getEditor().mLastDownPositionY); 8199 stopSelectionActionMode(); 8200 Selection.setSelection((Spannable) mText, offset); 8201 getInsertionController().showWithActionPopup(); 8202 handled = true; 8203 vibrate = false; 8204 } 8205 8206 if (!handled && mEditor != null && getEditor().mSelectionActionMode != null) { 8207 if (touchPositionIsInSelection()) { 8208 // Start a drag 8209 final int start = getSelectionStart(); 8210 final int end = getSelectionEnd(); 8211 CharSequence selectedText = getTransformedText(start, end); 8212 ClipData data = ClipData.newPlainText(null, selectedText); 8213 DragLocalState localState = new DragLocalState(this, start, end); 8214 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 8215 stopSelectionActionMode(); 8216 } else { 8217 getSelectionController().hide(); 8218 selectCurrentWord(); 8219 getSelectionController().show(); 8220 } 8221 handled = true; 8222 } 8223 8224 // Start a new selection 8225 if (!handled) { 8226 vibrate = handled = startSelectionActionMode(); 8227 } 8228 8229 if (vibrate) { 8230 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8231 } 8232 8233 if (handled && mEditor != null) { 8234 getEditor().mDiscardNextActionUp = true; 8235 } 8236 8237 return handled; 8238 } 8239 8240 private boolean touchPositionIsInSelection() { 8241 int selectionStart = getSelectionStart(); 8242 int selectionEnd = getSelectionEnd(); 8243 8244 if (selectionStart == selectionEnd) { 8245 return false; 8246 } 8247 8248 if (selectionStart > selectionEnd) { 8249 int tmp = selectionStart; 8250 selectionStart = selectionEnd; 8251 selectionEnd = tmp; 8252 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8253 } 8254 8255 SelectionModifierCursorController selectionController = getSelectionController(); 8256 int minOffset = selectionController.getMinTouchOffset(); 8257 int maxOffset = selectionController.getMaxTouchOffset(); 8258 8259 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 8260 } 8261 8262 private PositionListener getPositionListener() { 8263 if (getEditor().mPositionListener == null) { 8264 getEditor().mPositionListener = new PositionListener(); 8265 } 8266 return getEditor().mPositionListener; 8267 } 8268 8269 private interface TextViewPositionListener { 8270 public void updatePosition(int parentPositionX, int parentPositionY, 8271 boolean parentPositionChanged, boolean parentScrolled); 8272 } 8273 8274 private boolean isPositionVisible(int positionX, int positionY) { 8275 synchronized (TEMP_POSITION) { 8276 final float[] position = TEMP_POSITION; 8277 position[0] = positionX; 8278 position[1] = positionY; 8279 View view = this; 8280 8281 while (view != null) { 8282 if (view != this) { 8283 // Local scroll is already taken into account in positionX/Y 8284 position[0] -= view.getScrollX(); 8285 position[1] -= view.getScrollY(); 8286 } 8287 8288 if (position[0] < 0 || position[1] < 0 || 8289 position[0] > view.getWidth() || position[1] > view.getHeight()) { 8290 return false; 8291 } 8292 8293 if (!view.getMatrix().isIdentity()) { 8294 view.getMatrix().mapPoints(position); 8295 } 8296 8297 position[0] += view.getLeft(); 8298 position[1] += view.getTop(); 8299 8300 final ViewParent parent = view.getParent(); 8301 if (parent instanceof View) { 8302 view = (View) parent; 8303 } else { 8304 // We've reached the ViewRoot, stop iterating 8305 view = null; 8306 } 8307 } 8308 } 8309 8310 // We've been able to walk up the view hierarchy and the position was never clipped 8311 return true; 8312 } 8313 8314 private boolean isOffsetVisible(int offset) { 8315 final int line = mLayout.getLineForOffset(offset); 8316 final int lineBottom = mLayout.getLineBottom(line); 8317 final int primaryHorizontal = (int) mLayout.getPrimaryHorizontal(offset); 8318 return isPositionVisible(primaryHorizontal + viewportToContentHorizontalOffset(), 8319 lineBottom + viewportToContentVerticalOffset()); 8320 } 8321 8322 @Override 8323 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 8324 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 8325 if (mEditor != null && getEditor().mPositionListener != null) { 8326 getEditor().mPositionListener.onScrollChanged(); 8327 } 8328 } 8329 8330 /** 8331 * Removes the suggestion spans. 8332 */ 8333 CharSequence removeSuggestionSpans(CharSequence text) { 8334 if (text instanceof Spanned) { 8335 Spannable spannable; 8336 if (text instanceof Spannable) { 8337 spannable = (Spannable) text; 8338 } else { 8339 spannable = new SpannableString(text); 8340 text = spannable; 8341 } 8342 8343 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 8344 for (int i = 0; i < spans.length; i++) { 8345 spannable.removeSpan(spans[i]); 8346 } 8347 } 8348 return text; 8349 } 8350 8351 void showSuggestions() { 8352 if (getEditor().mSuggestionsPopupWindow == null) { 8353 getEditor().mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 8354 } 8355 hideControllers(); 8356 getEditor().mSuggestionsPopupWindow.show(); 8357 } 8358 8359 boolean areSuggestionsShown() { 8360 return getEditor().mSuggestionsPopupWindow != null && getEditor().mSuggestionsPopupWindow.isShowing(); 8361 } 8362 8363 /** 8364 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 8365 * by the IME or by the spell checker as the user types. This is done by adding 8366 * {@link SuggestionSpan}s to the text. 8367 * 8368 * When suggestions are enabled (default), this list of suggestions will be displayed when the 8369 * user asks for them on these parts of the text. This value depends on the inputType of this 8370 * TextView. 8371 * 8372 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 8373 * 8374 * In addition, the type variation must be one of 8375 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 8376 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 8377 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 8378 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 8379 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 8380 * 8381 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 8382 * 8383 * @return true if the suggestions popup window is enabled, based on the inputType. 8384 */ 8385 public boolean isSuggestionsEnabled() { 8386 if (mEditor == null) return false; 8387 if ((getEditor().mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) return false; 8388 if ((getEditor().mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 8389 8390 final int variation = getEditor().mInputType & EditorInfo.TYPE_MASK_VARIATION; 8391 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL || 8392 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT || 8393 variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE || 8394 variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE || 8395 variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 8396 } 8397 8398 /** 8399 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 8400 * selection is initiated in this View. 8401 * 8402 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 8403 * Paste actions, depending on what this View supports. 8404 * 8405 * A custom implementation can add new entries in the default menu in its 8406 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The 8407 * default actions can also be removed from the menu using {@link Menu#removeItem(int)} and 8408 * passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} 8409 * or {@link android.R.id#paste} ids as parameters. 8410 * 8411 * Returning false from 8412 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent 8413 * the action mode from being started. 8414 * 8415 * Action click events should be handled by the custom implementation of 8416 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 8417 * 8418 * Note that text selection mode is not started when a TextView receives focus and the 8419 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 8420 * that case, to allow for quick replacement. 8421 */ 8422 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 8423 createEditorIfNeeded("custom selection action mode set"); 8424 getEditor().mCustomSelectionActionModeCallback = actionModeCallback; 8425 } 8426 8427 /** 8428 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 8429 * 8430 * @return The current custom selection callback. 8431 */ 8432 public ActionMode.Callback getCustomSelectionActionModeCallback() { 8433 return mEditor == null ? null : getEditor().mCustomSelectionActionModeCallback; 8434 } 8435 8436 /** 8437 * 8438 * @return true if the selection mode was actually started. 8439 */ 8440 private boolean startSelectionActionMode() { 8441 if (getEditor().mSelectionActionMode != null) { 8442 // Selection action mode is already started 8443 return false; 8444 } 8445 8446 if (!canSelectText() || !requestFocus()) { 8447 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 8448 return false; 8449 } 8450 8451 if (!hasSelection()) { 8452 // There may already be a selection on device rotation 8453 if (!selectCurrentWord()) { 8454 // No word found under cursor or text selection not permitted. 8455 return false; 8456 } 8457 } 8458 8459 boolean willExtract = extractedTextModeWillBeStarted(); 8460 8461 // Do not start the action mode when extracted text will show up full screen, which would 8462 // immediately hide the newly created action bar and would be visually distracting. 8463 if (!willExtract) { 8464 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 8465 getEditor().mSelectionActionMode = startActionMode(actionModeCallback); 8466 } 8467 8468 final boolean selectionStarted = getEditor().mSelectionActionMode != null || willExtract; 8469 if (selectionStarted && !isTextSelectable()) { 8470 // Show the IME to be able to replace text, except when selecting non editable text. 8471 final InputMethodManager imm = InputMethodManager.peekInstance(); 8472 if (imm != null) { 8473 imm.showSoftInput(this, 0, null); 8474 } 8475 } 8476 8477 return selectionStarted; 8478 } 8479 8480 private boolean extractedTextModeWillBeStarted() { 8481 if (!(this instanceof ExtractEditText)) { 8482 final InputMethodManager imm = InputMethodManager.peekInstance(); 8483 return imm != null && imm.isFullscreenMode(); 8484 } 8485 return false; 8486 } 8487 8488 /** 8489 * @hide 8490 */ 8491 protected void stopSelectionActionMode() { 8492 if (getEditor().mSelectionActionMode != null) { 8493 // This will hide the mSelectionModifierCursorController 8494 getEditor().mSelectionActionMode.finish(); 8495 } 8496 } 8497 8498 /** 8499 * Paste clipboard content between min and max positions. 8500 */ 8501 private void paste(int min, int max) { 8502 ClipboardManager clipboard = 8503 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 8504 ClipData clip = clipboard.getPrimaryClip(); 8505 if (clip != null) { 8506 boolean didFirst = false; 8507 for (int i=0; i<clip.getItemCount(); i++) { 8508 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 8509 if (paste != null) { 8510 if (!didFirst) { 8511 long minMax = prepareSpacesAroundPaste(min, max, paste); 8512 min = extractRangeStartFromLong(minMax); 8513 max = extractRangeEndFromLong(minMax); 8514 Selection.setSelection((Spannable) mText, max); 8515 ((Editable) mText).replace(min, max, paste); 8516 didFirst = true; 8517 } else { 8518 ((Editable) mText).insert(getSelectionEnd(), "\n"); 8519 ((Editable) mText).insert(getSelectionEnd(), paste); 8520 } 8521 } 8522 } 8523 stopSelectionActionMode(); 8524 LAST_CUT_OR_COPY_TIME = 0; 8525 } 8526 } 8527 8528 private void setPrimaryClip(ClipData clip) { 8529 ClipboardManager clipboard = (ClipboardManager) getContext(). 8530 getSystemService(Context.CLIPBOARD_SERVICE); 8531 clipboard.setPrimaryClip(clip); 8532 LAST_CUT_OR_COPY_TIME = SystemClock.uptimeMillis(); 8533 } 8534 8535 private void hideInsertionPointCursorController() { 8536 // No need to create the controller to hide it. 8537 if (getEditor().mInsertionPointCursorController != null) { 8538 getEditor().mInsertionPointCursorController.hide(); 8539 } 8540 } 8541 8542 /** 8543 * Hides the insertion controller and stops text selection mode, hiding the selection controller 8544 */ 8545 private void hideControllers() { 8546 hideCursorControllers(); 8547 hideSpanControllers(); 8548 } 8549 8550 private void hideSpanControllers() { 8551 if (mChangeWatcher != null) { 8552 mChangeWatcher.hideControllers(); 8553 } 8554 } 8555 8556 private void hideCursorControllers() { 8557 if (getEditor().mSuggestionsPopupWindow != null && !getEditor().mSuggestionsPopupWindow.isShowingUp()) { 8558 // Should be done before hide insertion point controller since it triggers a show of it 8559 getEditor().mSuggestionsPopupWindow.hide(); 8560 } 8561 hideInsertionPointCursorController(); 8562 stopSelectionActionMode(); 8563 } 8564 8565 /** 8566 * Get the character offset closest to the specified absolute position. A typical use case is to 8567 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 8568 * 8569 * @param x The horizontal absolute position of a point on screen 8570 * @param y The vertical absolute position of a point on screen 8571 * @return the character offset for the character whose position is closest to the specified 8572 * position. Returns -1 if there is no layout. 8573 */ 8574 public int getOffsetForPosition(float x, float y) { 8575 if (getLayout() == null) return -1; 8576 final int line = getLineAtCoordinate(y); 8577 final int offset = getOffsetAtCoordinate(line, x); 8578 return offset; 8579 } 8580 8581 private float convertToLocalHorizontalCoordinate(float x) { 8582 x -= getTotalPaddingLeft(); 8583 // Clamp the position to inside of the view. 8584 x = Math.max(0.0f, x); 8585 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 8586 x += getScrollX(); 8587 return x; 8588 } 8589 8590 private int getLineAtCoordinate(float y) { 8591 y -= getTotalPaddingTop(); 8592 // Clamp the position to inside of the view. 8593 y = Math.max(0.0f, y); 8594 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 8595 y += getScrollY(); 8596 return getLayout().getLineForVertical((int) y); 8597 } 8598 8599 private int getOffsetAtCoordinate(int line, float x) { 8600 x = convertToLocalHorizontalCoordinate(x); 8601 return getLayout().getOffsetForHorizontal(line, x); 8602 } 8603 8604 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 8605 * in the view. Returns false when the position is in the empty space of left/right of text. 8606 */ 8607 private boolean isPositionOnText(float x, float y) { 8608 if (getLayout() == null) return false; 8609 8610 final int line = getLineAtCoordinate(y); 8611 x = convertToLocalHorizontalCoordinate(x); 8612 8613 if (x < getLayout().getLineLeft(line)) return false; 8614 if (x > getLayout().getLineRight(line)) return false; 8615 return true; 8616 } 8617 8618 @Override 8619 public boolean onDragEvent(DragEvent event) { 8620 switch (event.getAction()) { 8621 case DragEvent.ACTION_DRAG_STARTED: 8622 return mEditor != null && hasInsertionController(); 8623 8624 case DragEvent.ACTION_DRAG_ENTERED: 8625 TextView.this.requestFocus(); 8626 return true; 8627 8628 case DragEvent.ACTION_DRAG_LOCATION: 8629 final int offset = getOffsetForPosition(event.getX(), event.getY()); 8630 Selection.setSelection((Spannable)mText, offset); 8631 return true; 8632 8633 case DragEvent.ACTION_DROP: 8634 onDrop(event); 8635 return true; 8636 8637 case DragEvent.ACTION_DRAG_ENDED: 8638 case DragEvent.ACTION_DRAG_EXITED: 8639 default: 8640 return true; 8641 } 8642 } 8643 8644 private void onDrop(DragEvent event) { 8645 StringBuilder content = new StringBuilder(""); 8646 ClipData clipData = event.getClipData(); 8647 final int itemCount = clipData.getItemCount(); 8648 for (int i=0; i < itemCount; i++) { 8649 Item item = clipData.getItemAt(i); 8650 content.append(item.coerceToText(TextView.this.mContext)); 8651 } 8652 8653 final int offset = getOffsetForPosition(event.getX(), event.getY()); 8654 8655 Object localState = event.getLocalState(); 8656 DragLocalState dragLocalState = null; 8657 if (localState instanceof DragLocalState) { 8658 dragLocalState = (DragLocalState) localState; 8659 } 8660 boolean dragDropIntoItself = dragLocalState != null && 8661 dragLocalState.sourceTextView == this; 8662 8663 if (dragDropIntoItself) { 8664 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 8665 // A drop inside the original selection discards the drop. 8666 return; 8667 } 8668 } 8669 8670 final int originalLength = mText.length(); 8671 long minMax = prepareSpacesAroundPaste(offset, offset, content); 8672 int min = extractRangeStartFromLong(minMax); 8673 int max = extractRangeEndFromLong(minMax); 8674 8675 Selection.setSelection((Spannable) mText, max); 8676 replaceText_internal(min, max, content); 8677 8678 if (dragDropIntoItself) { 8679 int dragSourceStart = dragLocalState.start; 8680 int dragSourceEnd = dragLocalState.end; 8681 if (max <= dragSourceStart) { 8682 // Inserting text before selection has shifted positions 8683 final int shift = mText.length() - originalLength; 8684 dragSourceStart += shift; 8685 dragSourceEnd += shift; 8686 } 8687 8688 // Delete original selection 8689 deleteText_internal(dragSourceStart, dragSourceEnd); 8690 8691 // Make sure we do not leave two adjacent spaces. 8692 if ((dragSourceStart == 0 || 8693 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 8694 (dragSourceStart == mText.length() || 8695 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 8696 final int pos = dragSourceStart == mText.length() ? 8697 dragSourceStart - 1 : dragSourceStart; 8698 deleteText_internal(pos, pos + 1); 8699 } 8700 } 8701 } 8702 8703 /** 8704 * @return True if this view supports insertion handles. 8705 */ 8706 boolean hasInsertionController() { 8707 return getEditor().mInsertionControllerEnabled; 8708 } 8709 8710 /** 8711 * @return True if this view supports selection handles. 8712 */ 8713 boolean hasSelectionController() { 8714 return getEditor().mSelectionControllerEnabled; 8715 } 8716 8717 InsertionPointCursorController getInsertionController() { 8718 if (!getEditor().mInsertionControllerEnabled) { 8719 return null; 8720 } 8721 8722 if (getEditor().mInsertionPointCursorController == null) { 8723 getEditor().mInsertionPointCursorController = new InsertionPointCursorController(); 8724 8725 final ViewTreeObserver observer = getViewTreeObserver(); 8726 observer.addOnTouchModeChangeListener(getEditor().mInsertionPointCursorController); 8727 } 8728 8729 return getEditor().mInsertionPointCursorController; 8730 } 8731 8732 SelectionModifierCursorController getSelectionController() { 8733 if (!getEditor().mSelectionControllerEnabled) { 8734 return null; 8735 } 8736 8737 if (getEditor().mSelectionModifierCursorController == null) { 8738 getEditor().mSelectionModifierCursorController = new SelectionModifierCursorController(); 8739 8740 final ViewTreeObserver observer = getViewTreeObserver(); 8741 observer.addOnTouchModeChangeListener(getEditor().mSelectionModifierCursorController); 8742 } 8743 8744 return getEditor().mSelectionModifierCursorController; 8745 } 8746 8747 boolean isInBatchEditMode() { 8748 if (mEditor == null) return false; 8749 final InputMethodState ims = getEditor().mInputMethodState; 8750 if (ims != null) { 8751 return ims.mBatchEditNesting > 0; 8752 } 8753 return getEditor().mInBatchEditControllers; 8754 } 8755 8756 @Override 8757 public void onResolveTextDirection() { 8758 if (hasPasswordTransformationMethod()) { 8759 mTextDir = TextDirectionHeuristics.LOCALE; 8760 return; 8761 } 8762 8763 // Always need to resolve layout direction first 8764 final boolean defaultIsRtl = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL); 8765 8766 // Now, we can select the heuristic 8767 int textDir = getResolvedTextDirection(); 8768 switch (textDir) { 8769 default: 8770 case TEXT_DIRECTION_FIRST_STRONG: 8771 mTextDir = (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 8772 TextDirectionHeuristics.FIRSTSTRONG_LTR); 8773 break; 8774 case TEXT_DIRECTION_ANY_RTL: 8775 mTextDir = TextDirectionHeuristics.ANYRTL_LTR; 8776 break; 8777 case TEXT_DIRECTION_LTR: 8778 mTextDir = TextDirectionHeuristics.LTR; 8779 break; 8780 case TEXT_DIRECTION_RTL: 8781 mTextDir = TextDirectionHeuristics.RTL; 8782 break; 8783 case TEXT_DIRECTION_LOCALE: 8784 mTextDir = TextDirectionHeuristics.LOCALE; 8785 break; 8786 } 8787 } 8788 8789 /** 8790 * Subclasses will need to override this method to implement their own way of resolving 8791 * drawables depending on the layout direction. 8792 * 8793 * A call to the super method will be required from the subclasses implementation. 8794 */ 8795 protected void resolveDrawables() { 8796 // No need to resolve twice 8797 if (mResolvedDrawables) { 8798 return; 8799 } 8800 // No drawable to resolve 8801 if (mDrawables == null) { 8802 return; 8803 } 8804 // No relative drawable to resolve 8805 if (mDrawables.mDrawableStart == null && mDrawables.mDrawableEnd == null) { 8806 mResolvedDrawables = true; 8807 return; 8808 } 8809 8810 Drawables dr = mDrawables; 8811 switch(getResolvedLayoutDirection()) { 8812 case LAYOUT_DIRECTION_RTL: 8813 if (dr.mDrawableStart != null) { 8814 dr.mDrawableRight = dr.mDrawableStart; 8815 8816 dr.mDrawableSizeRight = dr.mDrawableSizeStart; 8817 dr.mDrawableHeightRight = dr.mDrawableHeightStart; 8818 } 8819 if (dr.mDrawableEnd != null) { 8820 dr.mDrawableLeft = dr.mDrawableEnd; 8821 8822 dr.mDrawableSizeLeft = dr.mDrawableSizeEnd; 8823 dr.mDrawableHeightLeft = dr.mDrawableHeightEnd; 8824 } 8825 break; 8826 8827 case LAYOUT_DIRECTION_LTR: 8828 default: 8829 if (dr.mDrawableStart != null) { 8830 dr.mDrawableLeft = dr.mDrawableStart; 8831 8832 dr.mDrawableSizeLeft = dr.mDrawableSizeStart; 8833 dr.mDrawableHeightLeft = dr.mDrawableHeightStart; 8834 } 8835 if (dr.mDrawableEnd != null) { 8836 dr.mDrawableRight = dr.mDrawableEnd; 8837 8838 dr.mDrawableSizeRight = dr.mDrawableSizeEnd; 8839 dr.mDrawableHeightRight = dr.mDrawableHeightEnd; 8840 } 8841 break; 8842 } 8843 mResolvedDrawables = true; 8844 } 8845 8846 protected void resetResolvedDrawables() { 8847 mResolvedDrawables = false; 8848 } 8849 8850 /** 8851 * @hide 8852 */ 8853 protected void viewClicked(InputMethodManager imm) { 8854 if (imm != null) { 8855 imm.viewClicked(this); 8856 } 8857 } 8858 8859 /** 8860 * Deletes the range of text [start, end[. 8861 * @hide 8862 */ 8863 protected void deleteText_internal(int start, int end) { 8864 ((Editable) mText).delete(start, end); 8865 } 8866 8867 /** 8868 * Replaces the range of text [start, end[ by replacement text 8869 * @hide 8870 */ 8871 protected void replaceText_internal(int start, int end, CharSequence text) { 8872 ((Editable) mText).replace(start, end, text); 8873 } 8874 8875 /** 8876 * Sets a span on the specified range of text 8877 * @hide 8878 */ 8879 protected void setSpan_internal(Object span, int start, int end, int flags) { 8880 ((Editable) mText).setSpan(span, start, end, flags); 8881 } 8882 8883 /** 8884 * Moves the cursor to the specified offset position in text 8885 * @hide 8886 */ 8887 protected void setCursorPosition_internal(int start, int end) { 8888 Selection.setSelection(((Editable) mText), start, end); 8889 } 8890 8891 /** 8892 * An Editor should be created as soon as any of the editable-specific fields (grouped 8893 * inside the Editor object) is assigned to a non-default value. 8894 * This method will create the Editor if needed. 8895 * 8896 * A standard TextView (as well as buttons, checkboxes...) should not qualify and hence will 8897 * have a null Editor, unlike an EditText. Inconsistent in-between states will have an 8898 * Editor for backward compatibility, as soon as one of these fields is assigned. 8899 * 8900 * Also note that for performance reasons, the mEditor is created when needed, but not 8901 * reset when no more edit-specific fields are needed. 8902 */ 8903 private void createEditorIfNeeded(String reason) { 8904 if (mEditor == null) { 8905 if (!(this instanceof EditText)) { 8906 Log.e(LOG_TAG + " EDITOR", "Creating Editor on TextView. " + reason); 8907 } 8908 mEditor = new Editor(); 8909 } else { 8910 if (!(this instanceof EditText)) { 8911 Log.d(LOG_TAG + " EDITOR", "Redundant Editor creation. " + reason); 8912 } 8913 } 8914 } 8915 8916 private Editor getEditor() { 8917 if (mEditor == null) { 8918 //createEditorIfNeeded("Problem: mEditor is not initialized!"); 8919 Log.e(LOG_TAG, "mEditor not initialized. Please send a bug report to debunne@"); 8920 } 8921 return mEditor; 8922 } 8923 8924 /** 8925 * User interface state that is stored by TextView for implementing 8926 * {@link View#onSaveInstanceState}. 8927 */ 8928 public static class SavedState extends BaseSavedState { 8929 int selStart; 8930 int selEnd; 8931 CharSequence text; 8932 boolean frozenWithFocus; 8933 CharSequence error; 8934 8935 SavedState(Parcelable superState) { 8936 super(superState); 8937 } 8938 8939 @Override 8940 public void writeToParcel(Parcel out, int flags) { 8941 super.writeToParcel(out, flags); 8942 out.writeInt(selStart); 8943 out.writeInt(selEnd); 8944 out.writeInt(frozenWithFocus ? 1 : 0); 8945 TextUtils.writeToParcel(text, out, flags); 8946 8947 if (error == null) { 8948 out.writeInt(0); 8949 } else { 8950 out.writeInt(1); 8951 TextUtils.writeToParcel(error, out, flags); 8952 } 8953 } 8954 8955 @Override 8956 public String toString() { 8957 String str = "TextView.SavedState{" 8958 + Integer.toHexString(System.identityHashCode(this)) 8959 + " start=" + selStart + " end=" + selEnd; 8960 if (text != null) { 8961 str += " text=" + text; 8962 } 8963 return str + "}"; 8964 } 8965 8966 @SuppressWarnings("hiding") 8967 public static final Parcelable.Creator<SavedState> CREATOR 8968 = new Parcelable.Creator<SavedState>() { 8969 public SavedState createFromParcel(Parcel in) { 8970 return new SavedState(in); 8971 } 8972 8973 public SavedState[] newArray(int size) { 8974 return new SavedState[size]; 8975 } 8976 }; 8977 8978 private SavedState(Parcel in) { 8979 super(in); 8980 selStart = in.readInt(); 8981 selEnd = in.readInt(); 8982 frozenWithFocus = (in.readInt() != 0); 8983 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 8984 8985 if (in.readInt() != 0) { 8986 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 8987 } 8988 } 8989 } 8990 8991 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 8992 private char[] mChars; 8993 private int mStart, mLength; 8994 8995 public CharWrapper(char[] chars, int start, int len) { 8996 mChars = chars; 8997 mStart = start; 8998 mLength = len; 8999 } 9000 9001 /* package */ void set(char[] chars, int start, int len) { 9002 mChars = chars; 9003 mStart = start; 9004 mLength = len; 9005 } 9006 9007 public int length() { 9008 return mLength; 9009 } 9010 9011 public char charAt(int off) { 9012 return mChars[off + mStart]; 9013 } 9014 9015 @Override 9016 public String toString() { 9017 return new String(mChars, mStart, mLength); 9018 } 9019 9020 public CharSequence subSequence(int start, int end) { 9021 if (start < 0 || end < 0 || start > mLength || end > mLength) { 9022 throw new IndexOutOfBoundsException(start + ", " + end); 9023 } 9024 9025 return new String(mChars, start + mStart, end - start); 9026 } 9027 9028 public void getChars(int start, int end, char[] buf, int off) { 9029 if (start < 0 || end < 0 || start > mLength || end > mLength) { 9030 throw new IndexOutOfBoundsException(start + ", " + end); 9031 } 9032 9033 System.arraycopy(mChars, start + mStart, buf, off, end - start); 9034 } 9035 9036 public void drawText(Canvas c, int start, int end, 9037 float x, float y, Paint p) { 9038 c.drawText(mChars, start + mStart, end - start, x, y, p); 9039 } 9040 9041 public void drawTextRun(Canvas c, int start, int end, 9042 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 9043 int count = end - start; 9044 int contextCount = contextEnd - contextStart; 9045 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 9046 contextCount, x, y, flags, p); 9047 } 9048 9049 public float measureText(int start, int end, Paint p) { 9050 return p.measureText(mChars, start + mStart, end - start); 9051 } 9052 9053 public int getTextWidths(int start, int end, float[] widths, Paint p) { 9054 return p.getTextWidths(mChars, start + mStart, end - start, widths); 9055 } 9056 9057 public float getTextRunAdvances(int start, int end, int contextStart, 9058 int contextEnd, int flags, float[] advances, int advancesIndex, 9059 Paint p) { 9060 int count = end - start; 9061 int contextCount = contextEnd - contextStart; 9062 return p.getTextRunAdvances(mChars, start + mStart, count, 9063 contextStart + mStart, contextCount, flags, advances, 9064 advancesIndex); 9065 } 9066 9067 public float getTextRunAdvances(int start, int end, int contextStart, 9068 int contextEnd, int flags, float[] advances, int advancesIndex, 9069 Paint p, int reserved) { 9070 int count = end - start; 9071 int contextCount = contextEnd - contextStart; 9072 return p.getTextRunAdvances(mChars, start + mStart, count, 9073 contextStart + mStart, contextCount, flags, advances, 9074 advancesIndex, reserved); 9075 } 9076 9077 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 9078 int offset, int cursorOpt, Paint p) { 9079 int contextCount = contextEnd - contextStart; 9080 return p.getTextRunCursor(mChars, contextStart + mStart, 9081 contextCount, flags, offset + mStart, cursorOpt); 9082 } 9083 } 9084 9085 private static class ErrorPopup extends PopupWindow { 9086 private boolean mAbove = false; 9087 private final TextView mView; 9088 private int mPopupInlineErrorBackgroundId = 0; 9089 private int mPopupInlineErrorAboveBackgroundId = 0; 9090 9091 ErrorPopup(TextView v, int width, int height) { 9092 super(v, width, height); 9093 mView = v; 9094 // Make sure the TextView has a background set as it will be used the first time it is 9095 // shown and positionned. Initialized with below background, which should have 9096 // dimensions identical to the above version for this to work (and is more likely). 9097 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 9098 com.android.internal.R.styleable.Theme_errorMessageBackground); 9099 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 9100 } 9101 9102 void fixDirection(boolean above) { 9103 mAbove = above; 9104 9105 if (above) { 9106 mPopupInlineErrorAboveBackgroundId = 9107 getResourceId(mPopupInlineErrorAboveBackgroundId, 9108 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 9109 } else { 9110 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 9111 com.android.internal.R.styleable.Theme_errorMessageBackground); 9112 } 9113 9114 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 9115 mPopupInlineErrorBackgroundId); 9116 } 9117 9118 private int getResourceId(int currentId, int index) { 9119 if (currentId == 0) { 9120 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 9121 R.styleable.Theme); 9122 currentId = styledAttributes.getResourceId(index, 0); 9123 styledAttributes.recycle(); 9124 } 9125 return currentId; 9126 } 9127 9128 @Override 9129 public void update(int x, int y, int w, int h, boolean force) { 9130 super.update(x, y, w, h, force); 9131 9132 boolean above = isAboveAnchor(); 9133 if (above != mAbove) { 9134 fixDirection(above); 9135 } 9136 } 9137 } 9138 9139 private class CorrectionHighlighter { 9140 private final Path mPath = new Path(); 9141 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 9142 private int mStart, mEnd; 9143 private long mFadingStartTime; 9144 private final static int FADE_OUT_DURATION = 400; 9145 9146 public CorrectionHighlighter() { 9147 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 9148 mPaint.setStyle(Paint.Style.FILL); 9149 } 9150 9151 public void highlight(CorrectionInfo info) { 9152 mStart = info.getOffset(); 9153 mEnd = mStart + info.getNewText().length(); 9154 mFadingStartTime = SystemClock.uptimeMillis(); 9155 9156 if (mStart < 0 || mEnd < 0) { 9157 stopAnimation(); 9158 } 9159 } 9160 9161 public void draw(Canvas canvas, int cursorOffsetVertical) { 9162 if (updatePath() && updatePaint()) { 9163 if (cursorOffsetVertical != 0) { 9164 canvas.translate(0, cursorOffsetVertical); 9165 } 9166 9167 canvas.drawPath(mPath, mPaint); 9168 9169 if (cursorOffsetVertical != 0) { 9170 canvas.translate(0, -cursorOffsetVertical); 9171 } 9172 invalidate(true); // TODO invalidate cursor region only 9173 } else { 9174 stopAnimation(); 9175 invalidate(false); // TODO invalidate cursor region only 9176 } 9177 } 9178 9179 private boolean updatePaint() { 9180 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 9181 if (duration > FADE_OUT_DURATION) return false; 9182 9183 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 9184 final int highlightColorAlpha = Color.alpha(mHighlightColor); 9185 final int color = (mHighlightColor & 0x00FFFFFF) + 9186 ((int) (highlightColorAlpha * coef) << 24); 9187 mPaint.setColor(color); 9188 return true; 9189 } 9190 9191 private boolean updatePath() { 9192 final Layout layout = TextView.this.mLayout; 9193 if (layout == null) return false; 9194 9195 // Update in case text is edited while the animation is run 9196 final int length = mText.length(); 9197 int start = Math.min(length, mStart); 9198 int end = Math.min(length, mEnd); 9199 9200 mPath.reset(); 9201 TextView.this.mLayout.getSelectionPath(start, end, mPath); 9202 return true; 9203 } 9204 9205 private void invalidate(boolean delayed) { 9206 if (TextView.this.mLayout == null) return; 9207 9208 synchronized (TEMP_RECTF) { 9209 mPath.computeBounds(TEMP_RECTF, false); 9210 9211 int left = getCompoundPaddingLeft(); 9212 int top = getExtendedPaddingTop() + getVerticalOffset(true); 9213 9214 if (delayed) { 9215 TextView.this.postInvalidateDelayed(16, // 60 Hz update 9216 left + (int) TEMP_RECTF.left, top + (int) TEMP_RECTF.top, 9217 left + (int) TEMP_RECTF.right, top + (int) TEMP_RECTF.bottom); 9218 } else { 9219 TextView.this.postInvalidate((int) TEMP_RECTF.left, (int) TEMP_RECTF.top, 9220 (int) TEMP_RECTF.right, (int) TEMP_RECTF.bottom); 9221 } 9222 } 9223 } 9224 9225 private void stopAnimation() { 9226 TextView.this.getEditor().mCorrectionHighlighter = null; 9227 } 9228 } 9229 9230 private static final class Marquee extends Handler { 9231 // TODO: Add an option to configure this 9232 private static final float MARQUEE_DELTA_MAX = 0.07f; 9233 private static final int MARQUEE_DELAY = 1200; 9234 private static final int MARQUEE_RESTART_DELAY = 1200; 9235 private static final int MARQUEE_RESOLUTION = 1000 / 30; 9236 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 9237 9238 private static final byte MARQUEE_STOPPED = 0x0; 9239 private static final byte MARQUEE_STARTING = 0x1; 9240 private static final byte MARQUEE_RUNNING = 0x2; 9241 9242 private static final int MESSAGE_START = 0x1; 9243 private static final int MESSAGE_TICK = 0x2; 9244 private static final int MESSAGE_RESTART = 0x3; 9245 9246 private final WeakReference<TextView> mView; 9247 9248 private byte mStatus = MARQUEE_STOPPED; 9249 private final float mScrollUnit; 9250 private float mMaxScroll; 9251 float mMaxFadeScroll; 9252 private float mGhostStart; 9253 private float mGhostOffset; 9254 private float mFadeStop; 9255 private int mRepeatLimit; 9256 9257 float mScroll; 9258 9259 Marquee(TextView v) { 9260 final float density = v.getContext().getResources().getDisplayMetrics().density; 9261 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 9262 mView = new WeakReference<TextView>(v); 9263 } 9264 9265 @Override 9266 public void handleMessage(Message msg) { 9267 switch (msg.what) { 9268 case MESSAGE_START: 9269 mStatus = MARQUEE_RUNNING; 9270 tick(); 9271 break; 9272 case MESSAGE_TICK: 9273 tick(); 9274 break; 9275 case MESSAGE_RESTART: 9276 if (mStatus == MARQUEE_RUNNING) { 9277 if (mRepeatLimit >= 0) { 9278 mRepeatLimit--; 9279 } 9280 start(mRepeatLimit); 9281 } 9282 break; 9283 } 9284 } 9285 9286 void tick() { 9287 if (mStatus != MARQUEE_RUNNING) { 9288 return; 9289 } 9290 9291 removeMessages(MESSAGE_TICK); 9292 9293 final TextView textView = mView.get(); 9294 if (textView != null && (textView.isFocused() || textView.isSelected())) { 9295 mScroll += mScrollUnit; 9296 if (mScroll > mMaxScroll) { 9297 mScroll = mMaxScroll; 9298 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 9299 } else { 9300 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 9301 } 9302 textView.invalidate(); 9303 } 9304 } 9305 9306 void stop() { 9307 mStatus = MARQUEE_STOPPED; 9308 removeMessages(MESSAGE_START); 9309 removeMessages(MESSAGE_RESTART); 9310 removeMessages(MESSAGE_TICK); 9311 resetScroll(); 9312 } 9313 9314 private void resetScroll() { 9315 mScroll = 0.0f; 9316 final TextView textView = mView.get(); 9317 if (textView != null) textView.invalidate(); 9318 } 9319 9320 void start(int repeatLimit) { 9321 if (repeatLimit == 0) { 9322 stop(); 9323 return; 9324 } 9325 mRepeatLimit = repeatLimit; 9326 final TextView textView = mView.get(); 9327 if (textView != null && textView.mLayout != null) { 9328 mStatus = MARQUEE_STARTING; 9329 mScroll = 0.0f; 9330 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 9331 textView.getCompoundPaddingRight(); 9332 final float lineWidth = textView.mLayout.getLineWidth(0); 9333 final float gap = textWidth / 3.0f; 9334 mGhostStart = lineWidth - textWidth + gap; 9335 mMaxScroll = mGhostStart + textWidth; 9336 mGhostOffset = lineWidth + gap; 9337 mFadeStop = lineWidth + textWidth / 6.0f; 9338 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 9339 9340 textView.invalidate(); 9341 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 9342 } 9343 } 9344 9345 float getGhostOffset() { 9346 return mGhostOffset; 9347 } 9348 9349 boolean shouldDrawLeftFade() { 9350 return mScroll <= mFadeStop; 9351 } 9352 9353 boolean shouldDrawGhost() { 9354 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 9355 } 9356 9357 boolean isRunning() { 9358 return mStatus == MARQUEE_RUNNING; 9359 } 9360 9361 boolean isStopped() { 9362 return mStatus == MARQUEE_STOPPED; 9363 } 9364 } 9365 9366 /** 9367 * Controls the {@link EasyEditSpan} monitoring when it is added, and when the related 9368 * pop-up should be displayed. 9369 */ 9370 private class EasyEditSpanController { 9371 9372 private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs 9373 9374 private EasyEditPopupWindow mPopupWindow; 9375 9376 private EasyEditSpan mEasyEditSpan; 9377 9378 private Runnable mHidePopup; 9379 9380 private void hide() { 9381 if (mPopupWindow != null) { 9382 mPopupWindow.hide(); 9383 TextView.this.removeCallbacks(mHidePopup); 9384 } 9385 removeSpans(mText); 9386 mEasyEditSpan = null; 9387 } 9388 9389 /** 9390 * Monitors the changes in the text. 9391 * 9392 * <p>{@link ChangeWatcher#onSpanAdded(Spannable, Object, int, int)} cannot be used, 9393 * as the notifications are not sent when a spannable (with spans) is inserted. 9394 */ 9395 public void onTextChange(CharSequence buffer) { 9396 adjustSpans(mText); 9397 9398 if (getWindowVisibility() != View.VISIBLE) { 9399 // The window is not visible yet, ignore the text change. 9400 return; 9401 } 9402 9403 if (mLayout == null) { 9404 // The view has not been layout yet, ignore the text change 9405 return; 9406 } 9407 9408 InputMethodManager imm = InputMethodManager.peekInstance(); 9409 if (!(TextView.this instanceof ExtractEditText) 9410 && imm != null && imm.isFullscreenMode()) { 9411 // The input is in extract mode. We do not have to handle the easy edit in the 9412 // original TextView, as the ExtractEditText will do 9413 return; 9414 } 9415 9416 // Remove the current easy edit span, as the text changed, and remove the pop-up 9417 // (if any) 9418 if (mEasyEditSpan != null) { 9419 if (mText instanceof Spannable) { 9420 ((Spannable) mText).removeSpan(mEasyEditSpan); 9421 } 9422 mEasyEditSpan = null; 9423 } 9424 if (mPopupWindow != null && mPopupWindow.isShowing()) { 9425 mPopupWindow.hide(); 9426 } 9427 9428 // Display the new easy edit span (if any). 9429 if (buffer instanceof Spanned) { 9430 mEasyEditSpan = getSpan((Spanned) buffer); 9431 if (mEasyEditSpan != null) { 9432 if (mPopupWindow == null) { 9433 mPopupWindow = new EasyEditPopupWindow(); 9434 mHidePopup = new Runnable() { 9435 @Override 9436 public void run() { 9437 hide(); 9438 } 9439 }; 9440 } 9441 mPopupWindow.show(mEasyEditSpan); 9442 TextView.this.removeCallbacks(mHidePopup); 9443 TextView.this.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS); 9444 } 9445 } 9446 } 9447 9448 /** 9449 * Adjusts the spans by removing all of them except the last one. 9450 */ 9451 private void adjustSpans(CharSequence buffer) { 9452 // This method enforces that only one easy edit span is attached to the text. 9453 // A better way to enforce this would be to listen for onSpanAdded, but this method 9454 // cannot be used in this scenario as no notification is triggered when a text with 9455 // spans is inserted into a text. 9456 if (buffer instanceof Spannable) { 9457 Spannable spannable = (Spannable) buffer; 9458 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 9459 EasyEditSpan.class); 9460 for (int i = 0; i < spans.length - 1; i++) { 9461 spannable.removeSpan(spans[i]); 9462 } 9463 } 9464 } 9465 9466 /** 9467 * Removes all the {@link EasyEditSpan} currently attached. 9468 */ 9469 private void removeSpans(CharSequence buffer) { 9470 if (buffer instanceof Spannable) { 9471 Spannable spannable = (Spannable) buffer; 9472 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 9473 EasyEditSpan.class); 9474 for (int i = 0; i < spans.length; i++) { 9475 spannable.removeSpan(spans[i]); 9476 } 9477 } 9478 } 9479 9480 private EasyEditSpan getSpan(Spanned spanned) { 9481 EasyEditSpan[] easyEditSpans = spanned.getSpans(0, spanned.length(), 9482 EasyEditSpan.class); 9483 if (easyEditSpans.length == 0) { 9484 return null; 9485 } else { 9486 return easyEditSpans[0]; 9487 } 9488 } 9489 } 9490 9491 /** 9492 * Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled 9493 * by {@link EasyEditSpanController}. 9494 */ 9495 private class EasyEditPopupWindow extends PinnedPopupWindow 9496 implements OnClickListener { 9497 private static final int POPUP_TEXT_LAYOUT = 9498 com.android.internal.R.layout.text_edit_action_popup_text; 9499 private TextView mDeleteTextView; 9500 private EasyEditSpan mEasyEditSpan; 9501 9502 @Override 9503 protected void createPopupWindow() { 9504 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 9505 com.android.internal.R.attr.textSelectHandleWindowStyle); 9506 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 9507 mPopupWindow.setClippingEnabled(true); 9508 } 9509 9510 @Override 9511 protected void initContentView() { 9512 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 9513 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 9514 mContentView = linearLayout; 9515 mContentView.setBackgroundResource( 9516 com.android.internal.R.drawable.text_edit_side_paste_window); 9517 9518 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 9519 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 9520 9521 LayoutParams wrapContent = new LayoutParams( 9522 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 9523 9524 mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 9525 mDeleteTextView.setLayoutParams(wrapContent); 9526 mDeleteTextView.setText(com.android.internal.R.string.delete); 9527 mDeleteTextView.setOnClickListener(this); 9528 mContentView.addView(mDeleteTextView); 9529 } 9530 9531 public void show(EasyEditSpan easyEditSpan) { 9532 mEasyEditSpan = easyEditSpan; 9533 super.show(); 9534 } 9535 9536 @Override 9537 public void onClick(View view) { 9538 if (view == mDeleteTextView) { 9539 Editable editable = (Editable) mText; 9540 int start = editable.getSpanStart(mEasyEditSpan); 9541 int end = editable.getSpanEnd(mEasyEditSpan); 9542 if (start >= 0 && end >= 0) { 9543 deleteText_internal(start, end); 9544 } 9545 } 9546 } 9547 9548 @Override 9549 protected int getTextOffset() { 9550 // Place the pop-up at the end of the span 9551 Editable editable = (Editable) mText; 9552 return editable.getSpanEnd(mEasyEditSpan); 9553 } 9554 9555 @Override 9556 protected int getVerticalLocalPosition(int line) { 9557 return mLayout.getLineBottom(line); 9558 } 9559 9560 @Override 9561 protected int clipVertically(int positionY) { 9562 // As we display the pop-up below the span, no vertical clipping is required. 9563 return positionY; 9564 } 9565 } 9566 9567 private class ChangeWatcher implements TextWatcher, SpanWatcher { 9568 9569 private CharSequence mBeforeText; 9570 9571 private EasyEditSpanController mEasyEditSpanController; 9572 9573 private ChangeWatcher() { 9574 mEasyEditSpanController = new EasyEditSpanController(); 9575 } 9576 9577 public void beforeTextChanged(CharSequence buffer, int start, 9578 int before, int after) { 9579 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 9580 + " before=" + before + " after=" + after + ": " + buffer); 9581 9582 if (AccessibilityManager.getInstance(mContext).isEnabled() 9583 && !isPasswordInputType(getInputType()) 9584 && !hasPasswordTransformationMethod()) { 9585 mBeforeText = buffer.toString(); 9586 } 9587 9588 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 9589 } 9590 9591 public void onTextChanged(CharSequence buffer, int start, 9592 int before, int after) { 9593 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 9594 + " before=" + before + " after=" + after + ": " + buffer); 9595 TextView.this.handleTextChanged(buffer, start, before, after); 9596 9597 mEasyEditSpanController.onTextChange(buffer); 9598 9599 if (AccessibilityManager.getInstance(mContext).isEnabled() && 9600 (isFocused() || isSelected() && isShown())) { 9601 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 9602 mBeforeText = null; 9603 } 9604 } 9605 9606 public void afterTextChanged(Editable buffer) { 9607 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 9608 TextView.this.sendAfterTextChanged(buffer); 9609 9610 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 9611 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 9612 } 9613 } 9614 9615 public void onSpanChanged(Spannable buf, 9616 Object what, int s, int e, int st, int en) { 9617 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 9618 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 9619 TextView.this.spanChange(buf, what, s, st, e, en); 9620 } 9621 9622 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 9623 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 9624 + " what=" + what + ": " + buf); 9625 TextView.this.spanChange(buf, what, -1, s, -1, e); 9626 } 9627 9628 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 9629 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 9630 + " what=" + what + ": " + buf); 9631 TextView.this.spanChange(buf, what, s, -1, e, -1); 9632 } 9633 9634 private void hideControllers() { 9635 mEasyEditSpanController.hide(); 9636 } 9637 } 9638 9639 private static class Blink extends Handler implements Runnable { 9640 private final WeakReference<TextView> mView; 9641 private boolean mCancelled; 9642 9643 public Blink(TextView v) { 9644 mView = new WeakReference<TextView>(v); 9645 } 9646 9647 public void run() { 9648 if (mCancelled) { 9649 return; 9650 } 9651 9652 removeCallbacks(Blink.this); 9653 9654 TextView tv = mView.get(); 9655 9656 if (tv != null && tv.shouldBlink()) { 9657 if (tv.mLayout != null) { 9658 tv.invalidateCursorPath(); 9659 } 9660 9661 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 9662 } 9663 } 9664 9665 void cancel() { 9666 if (!mCancelled) { 9667 removeCallbacks(Blink.this); 9668 mCancelled = true; 9669 } 9670 } 9671 9672 void uncancel() { 9673 mCancelled = false; 9674 } 9675 } 9676 9677 private static class DragLocalState { 9678 public TextView sourceTextView; 9679 public int start, end; 9680 9681 public DragLocalState(TextView sourceTextView, int start, int end) { 9682 this.sourceTextView = sourceTextView; 9683 this.start = start; 9684 this.end = end; 9685 } 9686 } 9687 9688 private class PositionListener implements ViewTreeObserver.OnPreDrawListener { 9689 // 3 handles 9690 // 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others) 9691 private final int MAXIMUM_NUMBER_OF_LISTENERS = 6; 9692 private TextViewPositionListener[] mPositionListeners = 9693 new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; 9694 private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; 9695 private boolean mPositionHasChanged = true; 9696 // Absolute position of the TextView with respect to its parent window 9697 private int mPositionX, mPositionY; 9698 private int mNumberOfListeners; 9699 private boolean mScrollHasChanged; 9700 final int[] mTempCoords = new int[2]; 9701 9702 public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { 9703 if (mNumberOfListeners == 0) { 9704 updatePosition(); 9705 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9706 vto.addOnPreDrawListener(this); 9707 } 9708 9709 int emptySlotIndex = -1; 9710 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9711 TextViewPositionListener listener = mPositionListeners[i]; 9712 if (listener == positionListener) { 9713 return; 9714 } else if (emptySlotIndex < 0 && listener == null) { 9715 emptySlotIndex = i; 9716 } 9717 } 9718 9719 mPositionListeners[emptySlotIndex] = positionListener; 9720 mCanMove[emptySlotIndex] = canMove; 9721 mNumberOfListeners++; 9722 } 9723 9724 public void removeSubscriber(TextViewPositionListener positionListener) { 9725 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9726 if (mPositionListeners[i] == positionListener) { 9727 mPositionListeners[i] = null; 9728 mNumberOfListeners--; 9729 break; 9730 } 9731 } 9732 9733 if (mNumberOfListeners == 0) { 9734 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9735 vto.removeOnPreDrawListener(this); 9736 } 9737 } 9738 9739 public int getPositionX() { 9740 return mPositionX; 9741 } 9742 9743 public int getPositionY() { 9744 return mPositionY; 9745 } 9746 9747 @Override 9748 public boolean onPreDraw() { 9749 updatePosition(); 9750 9751 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9752 if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) { 9753 TextViewPositionListener positionListener = mPositionListeners[i]; 9754 if (positionListener != null) { 9755 positionListener.updatePosition(mPositionX, mPositionY, 9756 mPositionHasChanged, mScrollHasChanged); 9757 } 9758 } 9759 } 9760 9761 mScrollHasChanged = false; 9762 return true; 9763 } 9764 9765 private void updatePosition() { 9766 TextView.this.getLocationInWindow(mTempCoords); 9767 9768 mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; 9769 9770 mPositionX = mTempCoords[0]; 9771 mPositionY = mTempCoords[1]; 9772 } 9773 9774 public void onScrollChanged() { 9775 mScrollHasChanged = true; 9776 } 9777 } 9778 9779 private abstract class PinnedPopupWindow implements TextViewPositionListener { 9780 protected PopupWindow mPopupWindow; 9781 protected ViewGroup mContentView; 9782 int mPositionX, mPositionY; 9783 9784 protected abstract void createPopupWindow(); 9785 protected abstract void initContentView(); 9786 protected abstract int getTextOffset(); 9787 protected abstract int getVerticalLocalPosition(int line); 9788 protected abstract int clipVertically(int positionY); 9789 9790 public PinnedPopupWindow() { 9791 createPopupWindow(); 9792 9793 mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 9794 mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 9795 mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 9796 9797 initContentView(); 9798 9799 LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9800 ViewGroup.LayoutParams.WRAP_CONTENT); 9801 mContentView.setLayoutParams(wrapContent); 9802 9803 mPopupWindow.setContentView(mContentView); 9804 } 9805 9806 public void show() { 9807 TextView.this.getPositionListener().addSubscriber(this, false /* offset is fixed */); 9808 9809 computeLocalPosition(); 9810 9811 final PositionListener positionListener = TextView.this.getPositionListener(); 9812 updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); 9813 } 9814 9815 protected void measureContent() { 9816 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9817 mContentView.measure( 9818 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 9819 View.MeasureSpec.AT_MOST), 9820 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 9821 View.MeasureSpec.AT_MOST)); 9822 } 9823 9824 /* The popup window will be horizontally centered on the getTextOffset() and vertically 9825 * positioned according to viewportToContentHorizontalOffset. 9826 * 9827 * This method assumes that mContentView has properly been measured from its content. */ 9828 private void computeLocalPosition() { 9829 measureContent(); 9830 final int width = mContentView.getMeasuredWidth(); 9831 final int offset = getTextOffset(); 9832 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f); 9833 mPositionX += viewportToContentHorizontalOffset(); 9834 9835 final int line = mLayout.getLineForOffset(offset); 9836 mPositionY = getVerticalLocalPosition(line); 9837 mPositionY += viewportToContentVerticalOffset(); 9838 } 9839 9840 private void updatePosition(int parentPositionX, int parentPositionY) { 9841 int positionX = parentPositionX + mPositionX; 9842 int positionY = parentPositionY + mPositionY; 9843 9844 positionY = clipVertically(positionY); 9845 9846 // Horizontal clipping 9847 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9848 final int width = mContentView.getMeasuredWidth(); 9849 positionX = Math.min(displayMetrics.widthPixels - width, positionX); 9850 positionX = Math.max(0, positionX); 9851 9852 if (isShowing()) { 9853 mPopupWindow.update(positionX, positionY, -1, -1); 9854 } else { 9855 mPopupWindow.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 9856 positionX, positionY); 9857 } 9858 } 9859 9860 public void hide() { 9861 mPopupWindow.dismiss(); 9862 TextView.this.getPositionListener().removeSubscriber(this); 9863 } 9864 9865 @Override 9866 public void updatePosition(int parentPositionX, int parentPositionY, 9867 boolean parentPositionChanged, boolean parentScrolled) { 9868 // Either parentPositionChanged or parentScrolled is true, check if still visible 9869 if (isShowing() && isOffsetVisible(getTextOffset())) { 9870 if (parentScrolled) computeLocalPosition(); 9871 updatePosition(parentPositionX, parentPositionY); 9872 } else { 9873 hide(); 9874 } 9875 } 9876 9877 public boolean isShowing() { 9878 return mPopupWindow.isShowing(); 9879 } 9880 } 9881 9882 private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener { 9883 private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE; 9884 private static final int ADD_TO_DICTIONARY = -1; 9885 private static final int DELETE_TEXT = -2; 9886 private SuggestionInfo[] mSuggestionInfos; 9887 private int mNumberOfSuggestions; 9888 private boolean mCursorWasVisibleBeforeSuggestions; 9889 private boolean mIsShowingUp = false; 9890 private SuggestionAdapter mSuggestionsAdapter; 9891 private final Comparator<SuggestionSpan> mSuggestionSpanComparator; 9892 private final HashMap<SuggestionSpan, Integer> mSpansLengths; 9893 9894 private class CustomPopupWindow extends PopupWindow { 9895 public CustomPopupWindow(Context context, int defStyle) { 9896 super(context, null, defStyle); 9897 } 9898 9899 @Override 9900 public void dismiss() { 9901 super.dismiss(); 9902 9903 TextView.this.getPositionListener().removeSubscriber(SuggestionsPopupWindow.this); 9904 9905 // Safe cast since show() checks that mText is an Editable 9906 ((Spannable) mText).removeSpan(getEditor().mSuggestionRangeSpan); 9907 9908 setCursorVisible(mCursorWasVisibleBeforeSuggestions); 9909 if (hasInsertionController()) { 9910 getInsertionController().show(); 9911 } 9912 } 9913 } 9914 9915 public SuggestionsPopupWindow() { 9916 mCursorWasVisibleBeforeSuggestions = getEditor().mCursorVisible; 9917 mSuggestionSpanComparator = new SuggestionSpanComparator(); 9918 mSpansLengths = new HashMap<SuggestionSpan, Integer>(); 9919 } 9920 9921 @Override 9922 protected void createPopupWindow() { 9923 mPopupWindow = new CustomPopupWindow(TextView.this.mContext, 9924 com.android.internal.R.attr.textSuggestionsWindowStyle); 9925 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 9926 mPopupWindow.setFocusable(true); 9927 mPopupWindow.setClippingEnabled(false); 9928 } 9929 9930 @Override 9931 protected void initContentView() { 9932 ListView listView = new ListView(TextView.this.getContext()); 9933 mSuggestionsAdapter = new SuggestionAdapter(); 9934 listView.setAdapter(mSuggestionsAdapter); 9935 listView.setOnItemClickListener(this); 9936 mContentView = listView; 9937 9938 // Inflate the suggestion items once and for all. + 2 for add to dictionary and delete 9939 mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2]; 9940 for (int i = 0; i < mSuggestionInfos.length; i++) { 9941 mSuggestionInfos[i] = new SuggestionInfo(); 9942 } 9943 } 9944 9945 public boolean isShowingUp() { 9946 return mIsShowingUp; 9947 } 9948 9949 public void onParentLostFocus() { 9950 mIsShowingUp = false; 9951 } 9952 9953 private class SuggestionInfo { 9954 int suggestionStart, suggestionEnd; // range of actual suggestion within text 9955 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 9956 int suggestionIndex; // the index of this suggestion inside suggestionSpan 9957 SpannableStringBuilder text = new SpannableStringBuilder(); 9958 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext, 9959 android.R.style.TextAppearance_SuggestionHighlight); 9960 } 9961 9962 private class SuggestionAdapter extends BaseAdapter { 9963 private LayoutInflater mInflater = (LayoutInflater) TextView.this.mContext. 9964 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 9965 9966 @Override 9967 public int getCount() { 9968 return mNumberOfSuggestions; 9969 } 9970 9971 @Override 9972 public Object getItem(int position) { 9973 return mSuggestionInfos[position]; 9974 } 9975 9976 @Override 9977 public long getItemId(int position) { 9978 return position; 9979 } 9980 9981 @Override 9982 public View getView(int position, View convertView, ViewGroup parent) { 9983 TextView textView = (TextView) convertView; 9984 9985 if (textView == null) { 9986 textView = (TextView) mInflater.inflate(mTextEditSuggestionItemLayout, parent, 9987 false); 9988 } 9989 9990 final SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9991 textView.setText(suggestionInfo.text); 9992 9993 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9994 textView.setCompoundDrawablesWithIntrinsicBounds( 9995 com.android.internal.R.drawable.ic_suggestions_add, 0, 0, 0); 9996 } else if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9997 textView.setCompoundDrawablesWithIntrinsicBounds( 9998 com.android.internal.R.drawable.ic_suggestions_delete, 0, 0, 0); 9999 } else { 10000 textView.setCompoundDrawables(null, null, null, null); 10001 } 10002 10003 return textView; 10004 } 10005 } 10006 10007 private class SuggestionSpanComparator implements Comparator<SuggestionSpan> { 10008 public int compare(SuggestionSpan span1, SuggestionSpan span2) { 10009 final int flag1 = span1.getFlags(); 10010 final int flag2 = span2.getFlags(); 10011 if (flag1 != flag2) { 10012 // The order here should match what is used in updateDrawState 10013 final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 10014 final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 10015 final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0; 10016 final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0; 10017 if (easy1 && !misspelled1) return -1; 10018 if (easy2 && !misspelled2) return 1; 10019 if (misspelled1) return -1; 10020 if (misspelled2) return 1; 10021 } 10022 10023 return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue(); 10024 } 10025 } 10026 10027 /** 10028 * Returns the suggestion spans that cover the current cursor position. The suggestion 10029 * spans are sorted according to the length of text that they are attached to. 10030 */ 10031 private SuggestionSpan[] getSuggestionSpans() { 10032 int pos = TextView.this.getSelectionStart(); 10033 Spannable spannable = (Spannable) TextView.this.mText; 10034 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 10035 10036 mSpansLengths.clear(); 10037 for (SuggestionSpan suggestionSpan : suggestionSpans) { 10038 int start = spannable.getSpanStart(suggestionSpan); 10039 int end = spannable.getSpanEnd(suggestionSpan); 10040 mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start)); 10041 } 10042 10043 // The suggestions are sorted according to their types (easy correction first, then 10044 // misspelled) and to the length of the text that they cover (shorter first). 10045 Arrays.sort(suggestionSpans, mSuggestionSpanComparator); 10046 return suggestionSpans; 10047 } 10048 10049 @Override 10050 public void show() { 10051 if (!(mText instanceof Editable)) return; 10052 10053 if (updateSuggestions()) { 10054 mCursorWasVisibleBeforeSuggestions = getEditor().mCursorVisible; 10055 setCursorVisible(false); 10056 mIsShowingUp = true; 10057 super.show(); 10058 } 10059 } 10060 10061 @Override 10062 protected void measureContent() { 10063 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 10064 final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec( 10065 displayMetrics.widthPixels, View.MeasureSpec.AT_MOST); 10066 final int verticalMeasure = View.MeasureSpec.makeMeasureSpec( 10067 displayMetrics.heightPixels, View.MeasureSpec.AT_MOST); 10068 10069 int width = 0; 10070 View view = null; 10071 for (int i = 0; i < mNumberOfSuggestions; i++) { 10072 view = mSuggestionsAdapter.getView(i, view, mContentView); 10073 view.getLayoutParams().width = LayoutParams.WRAP_CONTENT; 10074 view.measure(horizontalMeasure, verticalMeasure); 10075 width = Math.max(width, view.getMeasuredWidth()); 10076 } 10077 10078 // Enforce the width based on actual text widths 10079 mContentView.measure( 10080 View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), 10081 verticalMeasure); 10082 10083 Drawable popupBackground = mPopupWindow.getBackground(); 10084 if (popupBackground != null) { 10085 if (mTempRect == null) mTempRect = new Rect(); 10086 popupBackground.getPadding(mTempRect); 10087 width += mTempRect.left + mTempRect.right; 10088 } 10089 mPopupWindow.setWidth(width); 10090 } 10091 10092 @Override 10093 protected int getTextOffset() { 10094 return getSelectionStart(); 10095 } 10096 10097 @Override 10098 protected int getVerticalLocalPosition(int line) { 10099 return mLayout.getLineBottom(line); 10100 } 10101 10102 @Override 10103 protected int clipVertically(int positionY) { 10104 final int height = mContentView.getMeasuredHeight(); 10105 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 10106 return Math.min(positionY, displayMetrics.heightPixels - height); 10107 } 10108 10109 @Override 10110 public void hide() { 10111 super.hide(); 10112 } 10113 10114 private boolean updateSuggestions() { 10115 Spannable spannable = (Spannable) TextView.this.mText; 10116 SuggestionSpan[] suggestionSpans = getSuggestionSpans(); 10117 10118 final int nbSpans = suggestionSpans.length; 10119 // Suggestions are shown after a delay: the underlying spans may have been removed 10120 if (nbSpans == 0) return false; 10121 10122 mNumberOfSuggestions = 0; 10123 int spanUnionStart = mText.length(); 10124 int spanUnionEnd = 0; 10125 10126 SuggestionSpan misspelledSpan = null; 10127 int underlineColor = 0; 10128 10129 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 10130 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 10131 final int spanStart = spannable.getSpanStart(suggestionSpan); 10132 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 10133 spanUnionStart = Math.min(spanStart, spanUnionStart); 10134 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 10135 10136 if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) { 10137 misspelledSpan = suggestionSpan; 10138 } 10139 10140 // The first span dictates the background color of the highlighted text 10141 if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor(); 10142 10143 String[] suggestions = suggestionSpan.getSuggestions(); 10144 int nbSuggestions = suggestions.length; 10145 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 10146 String suggestion = suggestions[suggestionIndex]; 10147 10148 boolean suggestionIsDuplicate = false; 10149 for (int i = 0; i < mNumberOfSuggestions; i++) { 10150 if (mSuggestionInfos[i].text.toString().equals(suggestion)) { 10151 SuggestionSpan otherSuggestionSpan = mSuggestionInfos[i].suggestionSpan; 10152 final int otherSpanStart = spannable.getSpanStart(otherSuggestionSpan); 10153 final int otherSpanEnd = spannable.getSpanEnd(otherSuggestionSpan); 10154 if (spanStart == otherSpanStart && spanEnd == otherSpanEnd) { 10155 suggestionIsDuplicate = true; 10156 break; 10157 } 10158 } 10159 } 10160 10161 if (!suggestionIsDuplicate) { 10162 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 10163 suggestionInfo.suggestionSpan = suggestionSpan; 10164 suggestionInfo.suggestionIndex = suggestionIndex; 10165 suggestionInfo.text.replace(0, suggestionInfo.text.length(), suggestion); 10166 10167 mNumberOfSuggestions++; 10168 10169 if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) { 10170 // Also end outer for loop 10171 spanIndex = nbSpans; 10172 break; 10173 } 10174 } 10175 } 10176 } 10177 10178 for (int i = 0; i < mNumberOfSuggestions; i++) { 10179 highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd); 10180 } 10181 10182 // Add "Add to dictionary" item if there is a span with the misspelled flag 10183 if (misspelledSpan != null) { 10184 final int misspelledStart = spannable.getSpanStart(misspelledSpan); 10185 final int misspelledEnd = spannable.getSpanEnd(misspelledSpan); 10186 if (misspelledStart >= 0 && misspelledEnd > misspelledStart) { 10187 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 10188 suggestionInfo.suggestionSpan = misspelledSpan; 10189 suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY; 10190 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 10191 getContext().getString(com.android.internal.R.string.addToDictionary)); 10192 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 10193 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 10194 10195 mNumberOfSuggestions++; 10196 } 10197 } 10198 10199 // Delete item 10200 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 10201 suggestionInfo.suggestionSpan = null; 10202 suggestionInfo.suggestionIndex = DELETE_TEXT; 10203 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 10204 getContext().getString(com.android.internal.R.string.deleteText)); 10205 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 10206 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 10207 mNumberOfSuggestions++; 10208 10209 if (getEditor().mSuggestionRangeSpan == null) getEditor().mSuggestionRangeSpan = new SuggestionRangeSpan(); 10210 if (underlineColor == 0) { 10211 // Fallback on the default highlight color when the first span does not provide one 10212 getEditor().mSuggestionRangeSpan.setBackgroundColor(mHighlightColor); 10213 } else { 10214 final float BACKGROUND_TRANSPARENCY = 0.4f; 10215 final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY); 10216 getEditor().mSuggestionRangeSpan.setBackgroundColor( 10217 (underlineColor & 0x00FFFFFF) + (newAlpha << 24)); 10218 } 10219 spannable.setSpan(getEditor().mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 10220 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 10221 10222 mSuggestionsAdapter.notifyDataSetChanged(); 10223 return true; 10224 } 10225 10226 private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart, 10227 int unionEnd) { 10228 final Spannable text = (Spannable) mText; 10229 final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan); 10230 final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan); 10231 10232 // Adjust the start/end of the suggestion span 10233 suggestionInfo.suggestionStart = spanStart - unionStart; 10234 suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart 10235 + suggestionInfo.text.length(); 10236 10237 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 10238 suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 10239 10240 // Add the text before and after the span. 10241 final String textAsString = text.toString(); 10242 suggestionInfo.text.insert(0, textAsString.substring(unionStart, spanStart)); 10243 suggestionInfo.text.append(textAsString.substring(spanEnd, unionEnd)); 10244 } 10245 10246 @Override 10247 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 10248 Editable editable = (Editable) mText; 10249 SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 10250 10251 if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 10252 final int spanUnionStart = editable.getSpanStart(getEditor().mSuggestionRangeSpan); 10253 int spanUnionEnd = editable.getSpanEnd(getEditor().mSuggestionRangeSpan); 10254 if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) { 10255 // Do not leave two adjacent spaces after deletion, or one at beginning of text 10256 if (spanUnionEnd < editable.length() && 10257 Character.isSpaceChar(editable.charAt(spanUnionEnd)) && 10258 (spanUnionStart == 0 || 10259 Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) { 10260 spanUnionEnd = spanUnionEnd + 1; 10261 } 10262 deleteText_internal(spanUnionStart, spanUnionEnd); 10263 } 10264 hide(); 10265 return; 10266 } 10267 10268 final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan); 10269 final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan); 10270 if (spanStart < 0 || spanEnd <= spanStart) { 10271 // Span has been removed 10272 hide(); 10273 return; 10274 } 10275 final String originalText = mText.toString().substring(spanStart, spanEnd); 10276 10277 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 10278 Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT); 10279 intent.putExtra("word", originalText); 10280 intent.putExtra("locale", getTextServicesLocale().toString()); 10281 intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 10282 getContext().startActivity(intent); 10283 // There is no way to know if the word was indeed added. Re-check. 10284 // TODO The ExtractEditText should remove the span in the original text instead 10285 editable.removeSpan(suggestionInfo.suggestionSpan); 10286 updateSpellCheckSpans(spanStart, spanEnd, false); 10287 } else { 10288 // SuggestionSpans are removed by replace: save them before 10289 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 10290 SuggestionSpan.class); 10291 final int length = suggestionSpans.length; 10292 int[] suggestionSpansStarts = new int[length]; 10293 int[] suggestionSpansEnds = new int[length]; 10294 int[] suggestionSpansFlags = new int[length]; 10295 for (int i = 0; i < length; i++) { 10296 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 10297 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 10298 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 10299 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 10300 10301 // Remove potential misspelled flags 10302 int suggestionSpanFlags = suggestionSpan.getFlags(); 10303 if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) { 10304 suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED; 10305 suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 10306 suggestionSpan.setFlags(suggestionSpanFlags); 10307 } 10308 } 10309 10310 final int suggestionStart = suggestionInfo.suggestionStart; 10311 final int suggestionEnd = suggestionInfo.suggestionEnd; 10312 final String suggestion = suggestionInfo.text.subSequence( 10313 suggestionStart, suggestionEnd).toString(); 10314 replaceText_internal(spanStart, spanEnd, suggestion); 10315 10316 // Notify source IME of the suggestion pick. Do this before swaping texts. 10317 if (!TextUtils.isEmpty( 10318 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 10319 InputMethodManager imm = InputMethodManager.peekInstance(); 10320 if (imm != null) { 10321 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 10322 suggestionInfo.suggestionIndex); 10323 } 10324 } 10325 10326 // Swap text content between actual text and Suggestion span 10327 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 10328 suggestions[suggestionInfo.suggestionIndex] = originalText; 10329 10330 // Restore previous SuggestionSpans 10331 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 10332 for (int i = 0; i < length; i++) { 10333 // Only spans that include the modified region make sense after replacement 10334 // Spans partially included in the replaced region are removed, there is no 10335 // way to assign them a valid range after replacement 10336 if (suggestionSpansStarts[i] <= spanStart && 10337 suggestionSpansEnds[i] >= spanEnd) { 10338 setSpan_internal(suggestionSpans[i], suggestionSpansStarts[i], 10339 suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]); 10340 } 10341 } 10342 10343 // Move cursor at the end of the replaced word 10344 final int newCursorPosition = spanEnd + lengthDifference; 10345 setCursorPosition_internal(newCursorPosition, newCursorPosition); 10346 } 10347 10348 hide(); 10349 } 10350 } 10351 10352 /** 10353 * An ActionMode Callback class that is used to provide actions while in text selection mode. 10354 * 10355 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 10356 * on which of these this TextView supports. 10357 */ 10358 private class SelectionActionModeCallback implements ActionMode.Callback { 10359 10360 @Override 10361 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 10362 TypedArray styledAttributes = mContext.obtainStyledAttributes( 10363 com.android.internal.R.styleable.SelectionModeDrawables); 10364 10365 boolean allowText = getContext().getResources().getBoolean( 10366 com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon); 10367 10368 mode.setTitle(mContext.getString(com.android.internal.R.string.textSelectionCABTitle)); 10369 mode.setSubtitle(null); 10370 mode.setTitleOptionalHint(true); 10371 10372 int selectAllIconId = 0; // No icon by default 10373 if (!allowText) { 10374 // Provide an icon, text will not be displayed on smaller screens. 10375 selectAllIconId = styledAttributes.getResourceId( 10376 R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0); 10377 } 10378 10379 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 10380 setIcon(selectAllIconId). 10381 setAlphabeticShortcut('a'). 10382 setShowAsAction( 10383 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10384 10385 if (canCut()) { 10386 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 10387 setIcon(styledAttributes.getResourceId( 10388 R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)). 10389 setAlphabeticShortcut('x'). 10390 setShowAsAction( 10391 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10392 } 10393 10394 if (canCopy()) { 10395 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 10396 setIcon(styledAttributes.getResourceId( 10397 R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)). 10398 setAlphabeticShortcut('c'). 10399 setShowAsAction( 10400 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10401 } 10402 10403 if (canPaste()) { 10404 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 10405 setIcon(styledAttributes.getResourceId( 10406 R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)). 10407 setAlphabeticShortcut('v'). 10408 setShowAsAction( 10409 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10410 } 10411 10412 styledAttributes.recycle(); 10413 10414 if (getEditor().mCustomSelectionActionModeCallback != null) { 10415 if (!getEditor().mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 10416 // The custom mode can choose to cancel the action mode 10417 return false; 10418 } 10419 } 10420 10421 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 10422 getSelectionController().show(); 10423 return true; 10424 } else { 10425 return false; 10426 } 10427 } 10428 10429 @Override 10430 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 10431 if (getEditor().mCustomSelectionActionModeCallback != null) { 10432 return getEditor().mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 10433 } 10434 return true; 10435 } 10436 10437 @Override 10438 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 10439 if (getEditor().mCustomSelectionActionModeCallback != null && 10440 getEditor().mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 10441 return true; 10442 } 10443 return onTextContextMenuItem(item.getItemId()); 10444 } 10445 10446 @Override 10447 public void onDestroyActionMode(ActionMode mode) { 10448 if (getEditor().mCustomSelectionActionModeCallback != null) { 10449 getEditor().mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 10450 } 10451 Selection.setSelection((Spannable) mText, getSelectionEnd()); 10452 10453 if (getEditor().mSelectionModifierCursorController != null) { 10454 getEditor().mSelectionModifierCursorController.hide(); 10455 } 10456 10457 getEditor().mSelectionActionMode = null; 10458 } 10459 } 10460 10461 private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { 10462 private static final int POPUP_TEXT_LAYOUT = 10463 com.android.internal.R.layout.text_edit_action_popup_text; 10464 private TextView mPasteTextView; 10465 private TextView mReplaceTextView; 10466 10467 @Override 10468 protected void createPopupWindow() { 10469 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 10470 com.android.internal.R.attr.textSelectHandleWindowStyle); 10471 mPopupWindow.setClippingEnabled(true); 10472 } 10473 10474 @Override 10475 protected void initContentView() { 10476 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 10477 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 10478 mContentView = linearLayout; 10479 mContentView.setBackgroundResource( 10480 com.android.internal.R.drawable.text_edit_paste_window); 10481 10482 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 10483 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 10484 10485 LayoutParams wrapContent = new LayoutParams( 10486 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 10487 10488 mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10489 mPasteTextView.setLayoutParams(wrapContent); 10490 mContentView.addView(mPasteTextView); 10491 mPasteTextView.setText(com.android.internal.R.string.paste); 10492 mPasteTextView.setOnClickListener(this); 10493 10494 mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10495 mReplaceTextView.setLayoutParams(wrapContent); 10496 mContentView.addView(mReplaceTextView); 10497 mReplaceTextView.setText(com.android.internal.R.string.replace); 10498 mReplaceTextView.setOnClickListener(this); 10499 } 10500 10501 @Override 10502 public void show() { 10503 boolean canPaste = canPaste(); 10504 boolean canSuggest = isSuggestionsEnabled() && isCursorInsideSuggestionSpan(); 10505 mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); 10506 mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE); 10507 10508 if (!canPaste && !canSuggest) return; 10509 10510 super.show(); 10511 } 10512 10513 @Override 10514 public void onClick(View view) { 10515 if (view == mPasteTextView && canPaste()) { 10516 onTextContextMenuItem(ID_PASTE); 10517 hide(); 10518 } else if (view == mReplaceTextView) { 10519 final int middle = (getSelectionStart() + getSelectionEnd()) / 2; 10520 stopSelectionActionMode(); 10521 Selection.setSelection((Spannable) mText, middle); 10522 showSuggestions(); 10523 } 10524 } 10525 10526 @Override 10527 protected int getTextOffset() { 10528 return (getSelectionStart() + getSelectionEnd()) / 2; 10529 } 10530 10531 @Override 10532 protected int getVerticalLocalPosition(int line) { 10533 return mLayout.getLineTop(line) - mContentView.getMeasuredHeight(); 10534 } 10535 10536 @Override 10537 protected int clipVertically(int positionY) { 10538 if (positionY < 0) { 10539 final int offset = getTextOffset(); 10540 final int line = mLayout.getLineForOffset(offset); 10541 positionY += mLayout.getLineBottom(line) - mLayout.getLineTop(line); 10542 positionY += mContentView.getMeasuredHeight(); 10543 10544 // Assumes insertion and selection handles share the same height 10545 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 10546 positionY += handle.getIntrinsicHeight(); 10547 } 10548 10549 return positionY; 10550 } 10551 } 10552 10553 private abstract class HandleView extends View implements TextViewPositionListener { 10554 protected Drawable mDrawable; 10555 protected Drawable mDrawableLtr; 10556 protected Drawable mDrawableRtl; 10557 private final PopupWindow mContainer; 10558 // Position with respect to the parent TextView 10559 private int mPositionX, mPositionY; 10560 private boolean mIsDragging; 10561 // Offset from touch position to mPosition 10562 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 10563 protected int mHotspotX; 10564 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 10565 private float mTouchOffsetY; 10566 // Where the touch position should be on the handle to ensure a maximum cursor visibility 10567 private float mIdealVerticalOffset; 10568 // Parent's (TextView) previous position in window 10569 private int mLastParentX, mLastParentY; 10570 // Transient action popup window for Paste and Replace actions 10571 protected ActionPopupWindow mActionPopupWindow; 10572 // Previous text character offset 10573 private int mPreviousOffset = -1; 10574 // Previous text character offset 10575 private boolean mPositionHasChanged = true; 10576 // Used to delay the appearance of the action popup window 10577 private Runnable mActionPopupShower; 10578 10579 public HandleView(Drawable drawableLtr, Drawable drawableRtl) { 10580 super(TextView.this.mContext); 10581 mContainer = new PopupWindow(TextView.this.mContext, null, 10582 com.android.internal.R.attr.textSelectHandleWindowStyle); 10583 mContainer.setSplitTouchEnabled(true); 10584 mContainer.setClippingEnabled(false); 10585 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 10586 mContainer.setContentView(this); 10587 10588 mDrawableLtr = drawableLtr; 10589 mDrawableRtl = drawableRtl; 10590 10591 updateDrawable(); 10592 10593 final int handleHeight = mDrawable.getIntrinsicHeight(); 10594 mTouchOffsetY = -0.3f * handleHeight; 10595 mIdealVerticalOffset = 0.7f * handleHeight; 10596 } 10597 10598 protected void updateDrawable() { 10599 final int offset = getCurrentCursorOffset(); 10600 final boolean isRtlCharAtOffset = mLayout.isRtlCharAt(offset); 10601 mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr; 10602 mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset); 10603 } 10604 10605 protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun); 10606 10607 // Touch-up filter: number of previous positions remembered 10608 private static final int HISTORY_SIZE = 5; 10609 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 10610 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 10611 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 10612 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 10613 private int mPreviousOffsetIndex = 0; 10614 private int mNumberPreviousOffsets = 0; 10615 10616 private void startTouchUpFilter(int offset) { 10617 mNumberPreviousOffsets = 0; 10618 addPositionToTouchUpFilter(offset); 10619 } 10620 10621 private void addPositionToTouchUpFilter(int offset) { 10622 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 10623 mPreviousOffsets[mPreviousOffsetIndex] = offset; 10624 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 10625 mNumberPreviousOffsets++; 10626 } 10627 10628 private void filterOnTouchUp() { 10629 final long now = SystemClock.uptimeMillis(); 10630 int i = 0; 10631 int index = mPreviousOffsetIndex; 10632 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 10633 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 10634 i++; 10635 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 10636 } 10637 10638 if (i > 0 && i < iMax && 10639 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 10640 positionAtCursorOffset(mPreviousOffsets[index], false); 10641 } 10642 } 10643 10644 public boolean offsetHasBeenChanged() { 10645 return mNumberPreviousOffsets > 1; 10646 } 10647 10648 @Override 10649 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 10650 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 10651 } 10652 10653 public void show() { 10654 if (isShowing()) return; 10655 10656 getPositionListener().addSubscriber(this, true /* local position may change */); 10657 10658 // Make sure the offset is always considered new, even when focusing at same position 10659 mPreviousOffset = -1; 10660 positionAtCursorOffset(getCurrentCursorOffset(), false); 10661 10662 hideActionPopupWindow(); 10663 } 10664 10665 protected void dismiss() { 10666 mIsDragging = false; 10667 mContainer.dismiss(); 10668 onDetached(); 10669 } 10670 10671 public void hide() { 10672 dismiss(); 10673 10674 TextView.this.getPositionListener().removeSubscriber(this); 10675 } 10676 10677 void showActionPopupWindow(int delay) { 10678 if (mActionPopupWindow == null) { 10679 mActionPopupWindow = new ActionPopupWindow(); 10680 } 10681 if (mActionPopupShower == null) { 10682 mActionPopupShower = new Runnable() { 10683 public void run() { 10684 mActionPopupWindow.show(); 10685 } 10686 }; 10687 } else { 10688 TextView.this.removeCallbacks(mActionPopupShower); 10689 } 10690 TextView.this.postDelayed(mActionPopupShower, delay); 10691 } 10692 10693 protected void hideActionPopupWindow() { 10694 if (mActionPopupShower != null) { 10695 TextView.this.removeCallbacks(mActionPopupShower); 10696 } 10697 if (mActionPopupWindow != null) { 10698 mActionPopupWindow.hide(); 10699 } 10700 } 10701 10702 public boolean isShowing() { 10703 return mContainer.isShowing(); 10704 } 10705 10706 private boolean isVisible() { 10707 // Always show a dragging handle. 10708 if (mIsDragging) { 10709 return true; 10710 } 10711 10712 if (isInBatchEditMode()) { 10713 return false; 10714 } 10715 10716 return TextView.this.isPositionVisible(mPositionX + mHotspotX, mPositionY); 10717 } 10718 10719 public abstract int getCurrentCursorOffset(); 10720 10721 protected abstract void updateSelection(int offset); 10722 10723 public abstract void updatePosition(float x, float y); 10724 10725 protected void positionAtCursorOffset(int offset, boolean parentScrolled) { 10726 // A HandleView relies on the layout, which may be nulled by external methods 10727 if (mLayout == null) { 10728 // Will update controllers' state, hiding them and stopping selection mode if needed 10729 prepareCursorControllers(); 10730 return; 10731 } 10732 10733 if (offset != mPreviousOffset || parentScrolled) { 10734 updateSelection(offset); 10735 addPositionToTouchUpFilter(offset); 10736 final int line = mLayout.getLineForOffset(offset); 10737 10738 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 10739 mPositionY = mLayout.getLineBottom(line); 10740 10741 // Take TextView's padding and scroll into account. 10742 mPositionX += viewportToContentHorizontalOffset(); 10743 mPositionY += viewportToContentVerticalOffset(); 10744 10745 mPreviousOffset = offset; 10746 mPositionHasChanged = true; 10747 } 10748 } 10749 10750 public void updatePosition(int parentPositionX, int parentPositionY, 10751 boolean parentPositionChanged, boolean parentScrolled) { 10752 positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled); 10753 if (parentPositionChanged || mPositionHasChanged) { 10754 if (mIsDragging) { 10755 // Update touchToWindow offset in case of parent scrolling while dragging 10756 if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { 10757 mTouchToWindowOffsetX += parentPositionX - mLastParentX; 10758 mTouchToWindowOffsetY += parentPositionY - mLastParentY; 10759 mLastParentX = parentPositionX; 10760 mLastParentY = parentPositionY; 10761 } 10762 10763 onHandleMoved(); 10764 } 10765 10766 if (isVisible()) { 10767 final int positionX = parentPositionX + mPositionX; 10768 final int positionY = parentPositionY + mPositionY; 10769 if (isShowing()) { 10770 mContainer.update(positionX, positionY, -1, -1); 10771 } else { 10772 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 10773 positionX, positionY); 10774 } 10775 } else { 10776 if (isShowing()) { 10777 dismiss(); 10778 } 10779 } 10780 10781 mPositionHasChanged = false; 10782 } 10783 } 10784 10785 @Override 10786 protected void onDraw(Canvas c) { 10787 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 10788 mDrawable.draw(c); 10789 } 10790 10791 @Override 10792 public boolean onTouchEvent(MotionEvent ev) { 10793 switch (ev.getActionMasked()) { 10794 case MotionEvent.ACTION_DOWN: { 10795 startTouchUpFilter(getCurrentCursorOffset()); 10796 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 10797 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 10798 10799 final PositionListener positionListener = getPositionListener(); 10800 mLastParentX = positionListener.getPositionX(); 10801 mLastParentY = positionListener.getPositionY(); 10802 mIsDragging = true; 10803 break; 10804 } 10805 10806 case MotionEvent.ACTION_MOVE: { 10807 final float rawX = ev.getRawX(); 10808 final float rawY = ev.getRawY(); 10809 10810 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 10811 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 10812 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 10813 float newVerticalOffset; 10814 if (previousVerticalOffset < mIdealVerticalOffset) { 10815 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 10816 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 10817 } else { 10818 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 10819 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 10820 } 10821 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 10822 10823 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 10824 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 10825 10826 updatePosition(newPosX, newPosY); 10827 break; 10828 } 10829 10830 case MotionEvent.ACTION_UP: 10831 filterOnTouchUp(); 10832 mIsDragging = false; 10833 break; 10834 10835 case MotionEvent.ACTION_CANCEL: 10836 mIsDragging = false; 10837 break; 10838 } 10839 return true; 10840 } 10841 10842 public boolean isDragging() { 10843 return mIsDragging; 10844 } 10845 10846 void onHandleMoved() { 10847 hideActionPopupWindow(); 10848 } 10849 10850 public void onDetached() { 10851 hideActionPopupWindow(); 10852 } 10853 } 10854 10855 private class InsertionHandleView extends HandleView { 10856 private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; 10857 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 10858 10859 // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow 10860 private float mDownPositionX, mDownPositionY; 10861 private Runnable mHider; 10862 10863 public InsertionHandleView(Drawable drawable) { 10864 super(drawable, drawable); 10865 } 10866 10867 @Override 10868 public void show() { 10869 super.show(); 10870 10871 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - LAST_CUT_OR_COPY_TIME; 10872 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 10873 showActionPopupWindow(0); 10874 } 10875 10876 hideAfterDelay(); 10877 } 10878 10879 public void showWithActionPopup() { 10880 show(); 10881 showActionPopupWindow(0); 10882 } 10883 10884 private void hideAfterDelay() { 10885 if (mHider == null) { 10886 mHider = new Runnable() { 10887 public void run() { 10888 hide(); 10889 } 10890 }; 10891 } else { 10892 removeHiderCallback(); 10893 } 10894 TextView.this.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); 10895 } 10896 10897 private void removeHiderCallback() { 10898 if (mHider != null) { 10899 TextView.this.removeCallbacks(mHider); 10900 } 10901 } 10902 10903 @Override 10904 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10905 return drawable.getIntrinsicWidth() / 2; 10906 } 10907 10908 @Override 10909 public boolean onTouchEvent(MotionEvent ev) { 10910 final boolean result = super.onTouchEvent(ev); 10911 10912 switch (ev.getActionMasked()) { 10913 case MotionEvent.ACTION_DOWN: 10914 mDownPositionX = ev.getRawX(); 10915 mDownPositionY = ev.getRawY(); 10916 break; 10917 10918 case MotionEvent.ACTION_UP: 10919 if (!offsetHasBeenChanged()) { 10920 final float deltaX = mDownPositionX - ev.getRawX(); 10921 final float deltaY = mDownPositionY - ev.getRawY(); 10922 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 10923 10924 final ViewConfiguration viewConfiguration = ViewConfiguration.get( 10925 TextView.this.getContext()); 10926 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 10927 10928 if (distanceSquared < touchSlop * touchSlop) { 10929 if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { 10930 // Tapping on the handle dismisses the displayed action popup 10931 mActionPopupWindow.hide(); 10932 } else { 10933 showWithActionPopup(); 10934 } 10935 } 10936 } 10937 hideAfterDelay(); 10938 break; 10939 10940 case MotionEvent.ACTION_CANCEL: 10941 hideAfterDelay(); 10942 break; 10943 10944 default: 10945 break; 10946 } 10947 10948 return result; 10949 } 10950 10951 @Override 10952 public int getCurrentCursorOffset() { 10953 return TextView.this.getSelectionStart(); 10954 } 10955 10956 @Override 10957 public void updateSelection(int offset) { 10958 Selection.setSelection((Spannable) mText, offset); 10959 } 10960 10961 @Override 10962 public void updatePosition(float x, float y) { 10963 positionAtCursorOffset(getOffsetForPosition(x, y), false); 10964 } 10965 10966 @Override 10967 void onHandleMoved() { 10968 super.onHandleMoved(); 10969 removeHiderCallback(); 10970 } 10971 10972 @Override 10973 public void onDetached() { 10974 super.onDetached(); 10975 removeHiderCallback(); 10976 } 10977 } 10978 10979 private class SelectionStartHandleView extends HandleView { 10980 10981 public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10982 super(drawableLtr, drawableRtl); 10983 } 10984 10985 @Override 10986 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10987 if (isRtlRun) { 10988 return drawable.getIntrinsicWidth() / 4; 10989 } else { 10990 return (drawable.getIntrinsicWidth() * 3) / 4; 10991 } 10992 } 10993 10994 @Override 10995 public int getCurrentCursorOffset() { 10996 return TextView.this.getSelectionStart(); 10997 } 10998 10999 @Override 11000 public void updateSelection(int offset) { 11001 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 11002 updateDrawable(); 11003 } 11004 11005 @Override 11006 public void updatePosition(float x, float y) { 11007 int offset = getOffsetForPosition(x, y); 11008 11009 // Handles can not cross and selection is at least one character 11010 final int selectionEnd = getSelectionEnd(); 11011 if (offset >= selectionEnd) offset = Math.max(0, selectionEnd - 1); 11012 11013 positionAtCursorOffset(offset, false); 11014 } 11015 11016 public ActionPopupWindow getActionPopupWindow() { 11017 return mActionPopupWindow; 11018 } 11019 } 11020 11021 private class SelectionEndHandleView extends HandleView { 11022 11023 public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) { 11024 super(drawableLtr, drawableRtl); 11025 } 11026 11027 @Override 11028 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 11029 if (isRtlRun) { 11030 return (drawable.getIntrinsicWidth() * 3) / 4; 11031 } else { 11032 return drawable.getIntrinsicWidth() / 4; 11033 } 11034 } 11035 11036 @Override 11037 public int getCurrentCursorOffset() { 11038 return TextView.this.getSelectionEnd(); 11039 } 11040 11041 @Override 11042 public void updateSelection(int offset) { 11043 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 11044 updateDrawable(); 11045 } 11046 11047 @Override 11048 public void updatePosition(float x, float y) { 11049 int offset = getOffsetForPosition(x, y); 11050 11051 // Handles can not cross and selection is at least one character 11052 final int selectionStart = getSelectionStart(); 11053 if (offset <= selectionStart) offset = Math.min(selectionStart + 1, mText.length()); 11054 11055 positionAtCursorOffset(offset, false); 11056 } 11057 11058 public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { 11059 mActionPopupWindow = actionPopupWindow; 11060 } 11061 } 11062 11063 /** 11064 * A CursorController instance can be used to control a cursor in the text. 11065 * It is not used outside of {@link TextView}. 11066 * @hide 11067 */ 11068 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 11069 /** 11070 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 11071 * See also {@link #hide()}. 11072 */ 11073 public void show(); 11074 11075 /** 11076 * Hide the cursor controller from screen. 11077 * See also {@link #show()}. 11078 */ 11079 public void hide(); 11080 11081 /** 11082 * Called when the view is detached from window. Perform house keeping task, such as 11083 * stopping Runnable thread that would otherwise keep a reference on the context, thus 11084 * preventing the activity from being recycled. 11085 */ 11086 public void onDetached(); 11087 } 11088 11089 private class InsertionPointCursorController implements CursorController { 11090 private InsertionHandleView mHandle; 11091 11092 public void show() { 11093 getHandle().show(); 11094 } 11095 11096 public void showWithActionPopup() { 11097 getHandle().showWithActionPopup(); 11098 } 11099 11100 public void hide() { 11101 if (mHandle != null) { 11102 mHandle.hide(); 11103 } 11104 } 11105 11106 public void onTouchModeChanged(boolean isInTouchMode) { 11107 if (!isInTouchMode) { 11108 hide(); 11109 } 11110 } 11111 11112 private InsertionHandleView getHandle() { 11113 if (getEditor().mSelectHandleCenter == null) { 11114 getEditor().mSelectHandleCenter = mContext.getResources().getDrawable( 11115 mTextSelectHandleRes); 11116 } 11117 if (mHandle == null) { 11118 mHandle = new InsertionHandleView(getEditor().mSelectHandleCenter); 11119 } 11120 return mHandle; 11121 } 11122 11123 @Override 11124 public void onDetached() { 11125 final ViewTreeObserver observer = getViewTreeObserver(); 11126 observer.removeOnTouchModeChangeListener(this); 11127 11128 if (mHandle != null) mHandle.onDetached(); 11129 } 11130 } 11131 11132 private class SelectionModifierCursorController implements CursorController { 11133 private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds 11134 // The cursor controller handles, lazily created when shown. 11135 private SelectionStartHandleView mStartHandle; 11136 private SelectionEndHandleView mEndHandle; 11137 // The offsets of that last touch down event. Remembered to start selection there. 11138 private int mMinTouchOffset, mMaxTouchOffset; 11139 11140 // Double tap detection 11141 private long mPreviousTapUpTime = 0; 11142 private float mDownPositionX, mDownPositionY; 11143 private boolean mGestureStayedInTapRegion; 11144 11145 SelectionModifierCursorController() { 11146 resetTouchOffsets(); 11147 } 11148 11149 public void show() { 11150 if (isInBatchEditMode()) { 11151 return; 11152 } 11153 initDrawables(); 11154 initHandles(); 11155 hideInsertionPointCursorController(); 11156 } 11157 11158 private void initDrawables() { 11159 if (getEditor().mSelectHandleLeft == null) { 11160 getEditor().mSelectHandleLeft = mContext.getResources().getDrawable( 11161 mTextSelectHandleLeftRes); 11162 } 11163 if (getEditor().mSelectHandleRight == null) { 11164 getEditor().mSelectHandleRight = mContext.getResources().getDrawable( 11165 mTextSelectHandleRightRes); 11166 } 11167 } 11168 11169 private void initHandles() { 11170 // Lazy object creation has to be done before updatePosition() is called. 11171 if (mStartHandle == null) { 11172 mStartHandle = new SelectionStartHandleView(getEditor().mSelectHandleLeft, getEditor().mSelectHandleRight); 11173 } 11174 if (mEndHandle == null) { 11175 mEndHandle = new SelectionEndHandleView(getEditor().mSelectHandleRight, getEditor().mSelectHandleLeft); 11176 } 11177 11178 mStartHandle.show(); 11179 mEndHandle.show(); 11180 11181 // Make sure both left and right handles share the same ActionPopupWindow (so that 11182 // moving any of the handles hides the action popup). 11183 mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); 11184 mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); 11185 11186 hideInsertionPointCursorController(); 11187 } 11188 11189 public void hide() { 11190 if (mStartHandle != null) mStartHandle.hide(); 11191 if (mEndHandle != null) mEndHandle.hide(); 11192 } 11193 11194 public void onTouchEvent(MotionEvent event) { 11195 // This is done even when the View does not have focus, so that long presses can start 11196 // selection and tap can move cursor from this tap position. 11197 switch (event.getActionMasked()) { 11198 case MotionEvent.ACTION_DOWN: 11199 final float x = event.getX(); 11200 final float y = event.getY(); 11201 11202 // Remember finger down position, to be able to start selection from there 11203 mMinTouchOffset = mMaxTouchOffset = getOffsetForPosition(x, y); 11204 11205 // Double tap detection 11206 if (mGestureStayedInTapRegion) { 11207 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 11208 if (duration <= ViewConfiguration.getDoubleTapTimeout()) { 11209 final float deltaX = x - mDownPositionX; 11210 final float deltaY = y - mDownPositionY; 11211 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 11212 11213 ViewConfiguration viewConfiguration = ViewConfiguration.get( 11214 TextView.this.getContext()); 11215 int doubleTapSlop = viewConfiguration.getScaledDoubleTapSlop(); 11216 boolean stayedInArea = distanceSquared < doubleTapSlop * doubleTapSlop; 11217 11218 if (stayedInArea && isPositionOnText(x, y)) { 11219 startSelectionActionMode(); 11220 getEditor().mDiscardNextActionUp = true; 11221 } 11222 } 11223 } 11224 11225 mDownPositionX = x; 11226 mDownPositionY = y; 11227 mGestureStayedInTapRegion = true; 11228 break; 11229 11230 case MotionEvent.ACTION_POINTER_DOWN: 11231 case MotionEvent.ACTION_POINTER_UP: 11232 // Handle multi-point gestures. Keep min and max offset positions. 11233 // Only activated for devices that correctly handle multi-touch. 11234 if (mContext.getPackageManager().hasSystemFeature( 11235 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 11236 updateMinAndMaxOffsets(event); 11237 } 11238 break; 11239 11240 case MotionEvent.ACTION_MOVE: 11241 if (mGestureStayedInTapRegion) { 11242 final float deltaX = event.getX() - mDownPositionX; 11243 final float deltaY = event.getY() - mDownPositionY; 11244 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 11245 11246 final ViewConfiguration viewConfiguration = ViewConfiguration.get( 11247 TextView.this.getContext()); 11248 int doubleTapTouchSlop = viewConfiguration.getScaledDoubleTapTouchSlop(); 11249 11250 if (distanceSquared > doubleTapTouchSlop * doubleTapTouchSlop) { 11251 mGestureStayedInTapRegion = false; 11252 } 11253 } 11254 break; 11255 11256 case MotionEvent.ACTION_UP: 11257 mPreviousTapUpTime = SystemClock.uptimeMillis(); 11258 break; 11259 } 11260 } 11261 11262 /** 11263 * @param event 11264 */ 11265 private void updateMinAndMaxOffsets(MotionEvent event) { 11266 int pointerCount = event.getPointerCount(); 11267 for (int index = 0; index < pointerCount; index++) { 11268 int offset = getOffsetForPosition(event.getX(index), event.getY(index)); 11269 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 11270 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 11271 } 11272 } 11273 11274 public int getMinTouchOffset() { 11275 return mMinTouchOffset; 11276 } 11277 11278 public int getMaxTouchOffset() { 11279 return mMaxTouchOffset; 11280 } 11281 11282 public void resetTouchOffsets() { 11283 mMinTouchOffset = mMaxTouchOffset = -1; 11284 } 11285 11286 /** 11287 * @return true iff this controller is currently used to move the selection start. 11288 */ 11289 public boolean isSelectionStartDragged() { 11290 return mStartHandle != null && mStartHandle.isDragging(); 11291 } 11292 11293 public void onTouchModeChanged(boolean isInTouchMode) { 11294 if (!isInTouchMode) { 11295 hide(); 11296 } 11297 } 11298 11299 @Override 11300 public void onDetached() { 11301 final ViewTreeObserver observer = getViewTreeObserver(); 11302 observer.removeOnTouchModeChangeListener(this); 11303 11304 if (mStartHandle != null) mStartHandle.onDetached(); 11305 if (mEndHandle != null) mEndHandle.onDetached(); 11306 } 11307 } 11308 11309 static class InputContentType { 11310 int imeOptions = EditorInfo.IME_NULL; 11311 String privateImeOptions; 11312 CharSequence imeActionLabel; 11313 int imeActionId; 11314 Bundle extras; 11315 OnEditorActionListener onEditorActionListener; 11316 boolean enterDown; 11317 } 11318 11319 static class InputMethodState { 11320 Rect mCursorRectInWindow = new Rect(); 11321 RectF mTmpRectF = new RectF(); 11322 float[] mTmpOffset = new float[2]; 11323 ExtractedTextRequest mExtracting; 11324 final ExtractedText mTmpExtracted = new ExtractedText(); 11325 int mBatchEditNesting; 11326 boolean mCursorChanged; 11327 boolean mSelectionModeChanged; 11328 boolean mContentChanged; 11329 int mChangedStart, mChangedEnd, mChangedDelta; 11330 } 11331 11332 private class Editor { 11333 Editor() { 11334 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 11335 final CompatibilityInfo compat = TextView.this.getResources().getCompatibilityInfo(); 11336 mHighlightPaint.setCompatibilityScaling(compat.applicationScale); 11337 } 11338 11339 // Cursor Controllers. 11340 InsertionPointCursorController mInsertionPointCursorController; 11341 SelectionModifierCursorController mSelectionModifierCursorController; 11342 ActionMode mSelectionActionMode; 11343 boolean mInsertionControllerEnabled; 11344 boolean mSelectionControllerEnabled; 11345 11346 // Used to highlight a word when it is corrected by the IME 11347 CorrectionHighlighter mCorrectionHighlighter; 11348 11349 InputContentType mInputContentType; 11350 InputMethodState mInputMethodState; 11351 11352 Path mHighlightPath; 11353 boolean mHighlightPathBogus = true; 11354 final Paint mHighlightPaint; 11355 11356 DisplayList mTextDisplayList; 11357 boolean mTextDisplayListIsValid; 11358 11359 boolean mFrozenWithFocus; 11360 boolean mSelectionMoved; 11361 boolean mTouchFocusSelected; 11362 11363 KeyListener mKeyListener; 11364 int mInputType = EditorInfo.TYPE_NULL; 11365 11366 boolean mDiscardNextActionUp; 11367 boolean mIgnoreActionUpEvent; 11368 11369 long mShowCursor; 11370 Blink mBlink; 11371 11372 boolean mCursorVisible = true; 11373 boolean mSelectAllOnFocus; 11374 boolean mTextIsSelectable; 11375 11376 CharSequence mError; 11377 boolean mErrorWasChanged; 11378 ErrorPopup mErrorPopup; 11379 /** 11380 * This flag is set if the TextView tries to display an error before it 11381 * is attached to the window (so its position is still unknown). 11382 * It causes the error to be shown later, when onAttachedToWindow() 11383 * is called. 11384 */ 11385 boolean mShowErrorAfterAttach; 11386 11387 boolean mInBatchEditControllers; 11388 11389 SuggestionsPopupWindow mSuggestionsPopupWindow; 11390 SuggestionRangeSpan mSuggestionRangeSpan; 11391 Runnable mShowSuggestionRunnable; 11392 11393 final Drawable[] mCursorDrawable = new Drawable[2]; 11394 int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 (split) 11395 11396 Drawable mSelectHandleLeft; 11397 Drawable mSelectHandleRight; 11398 Drawable mSelectHandleCenter; 11399 11400 // Global listener that detects changes in the global position of the TextView 11401 PositionListener mPositionListener; 11402 11403 float mLastDownPositionX, mLastDownPositionY; 11404 Callback mCustomSelectionActionModeCallback; 11405 11406 // Set when this TextView gained focus with some text selected. Will start selection mode. 11407 boolean mCreatedWithASelection; 11408 11409 WordIterator mWordIterator; 11410 SpellChecker mSpellChecker; 11411 11412 void onAttachedToWindow() { 11413 final ViewTreeObserver observer = getViewTreeObserver(); 11414 // No need to create the controller. 11415 // The get method will add the listener on controller creation. 11416 if (mInsertionPointCursorController != null) { 11417 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 11418 } 11419 if (mSelectionModifierCursorController != null) { 11420 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 11421 } 11422 updateSpellCheckSpans(0, mText.length(), true /* create the spell checker if needed */); 11423 } 11424 11425 void onDetachedFromWindow() { 11426 if (mError != null) { 11427 hideError(); 11428 } 11429 11430 if (mBlink != null) { 11431 mBlink.removeCallbacks(mBlink); 11432 } 11433 11434 if (mInsertionPointCursorController != null) { 11435 mInsertionPointCursorController.onDetached(); 11436 } 11437 11438 if (mSelectionModifierCursorController != null) { 11439 mSelectionModifierCursorController.onDetached(); 11440 } 11441 11442 if (mShowSuggestionRunnable != null) { 11443 removeCallbacks(mShowSuggestionRunnable); 11444 } 11445 11446 if (mTextDisplayList != null) { 11447 mTextDisplayList.invalidate(); 11448 } 11449 11450 if (mSpellChecker != null) { 11451 mSpellChecker.closeSession(); 11452 // Forces the creation of a new SpellChecker next time this window is created. 11453 // Will handle the cases where the settings has been changed in the meantime. 11454 mSpellChecker = null; 11455 } 11456 11457 hideControllers(); 11458 } 11459 11460 void adjustInputType(boolean password, boolean passwordInputType, 11461 boolean webPasswordInputType, boolean numberPasswordInputType) { 11462 // mInputType has been set from inputType, possibly modified by mInputMethod. 11463 // Specialize mInputType to [web]password if we have a text class and the original input 11464 // type was a password. 11465 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 11466 if (password || passwordInputType) { 11467 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 11468 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 11469 } 11470 if (webPasswordInputType) { 11471 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 11472 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 11473 } 11474 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 11475 if (numberPasswordInputType) { 11476 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 11477 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 11478 } 11479 } 11480 } 11481 11482 void setFrame() { 11483 if (mErrorPopup != null) { 11484 TextView tv = (TextView) mErrorPopup.getContentView(); 11485 chooseSize(mErrorPopup, mError, tv); 11486 mErrorPopup.update(TextView.this, getErrorX(), getErrorY(), 11487 mErrorPopup.getWidth(), mErrorPopup.getHeight()); 11488 } 11489 } 11490 11491 void onFocusChanged(boolean focused, int direction) { 11492 mShowCursor = SystemClock.uptimeMillis(); 11493 ensureEndedBatchEdit(); 11494 11495 if (focused) { 11496 int selStart = getSelectionStart(); 11497 int selEnd = getSelectionEnd(); 11498 11499 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 11500 // mode for these, unless there was a specific selection already started. 11501 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 11502 selEnd == mText.length(); 11503 11504 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 11505 11506 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 11507 // If a tap was used to give focus to that view, move cursor at tap position. 11508 // Has to be done before onTakeFocus, which can be overloaded. 11509 final int lastTapPosition = getLastTapPosition(); 11510 if (lastTapPosition >= 0) { 11511 Selection.setSelection((Spannable) mText, lastTapPosition); 11512 } 11513 11514 // Note this may have to be moved out of the Editor class 11515 if (mMovement != null) { 11516 mMovement.onTakeFocus(TextView.this, (Spannable) mText, direction); 11517 } 11518 11519 // The DecorView does not have focus when the 'Done' ExtractEditText button is 11520 // pressed. Since it is the ViewAncestor's mView, it requests focus before 11521 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 11522 // This special case ensure that we keep current selection in that case. 11523 // It would be better to know why the DecorView does not have focus at that time. 11524 if (((TextView.this instanceof ExtractEditText) || mSelectionMoved) && 11525 selStart >= 0 && selEnd >= 0) { 11526 /* 11527 * Someone intentionally set the selection, so let them 11528 * do whatever it is that they wanted to do instead of 11529 * the default on-focus behavior. We reset the selection 11530 * here instead of just skipping the onTakeFocus() call 11531 * because some movement methods do something other than 11532 * just setting the selection in theirs and we still 11533 * need to go through that path. 11534 */ 11535 Selection.setSelection((Spannable) mText, selStart, selEnd); 11536 } 11537 11538 if (mSelectAllOnFocus) { 11539 selectAll(); 11540 } 11541 11542 mTouchFocusSelected = true; 11543 } 11544 11545 mFrozenWithFocus = false; 11546 mSelectionMoved = false; 11547 11548 if (mError != null) { 11549 showError(); 11550 } 11551 11552 makeBlink(); 11553 } else { 11554 if (mError != null) { 11555 hideError(); 11556 } 11557 // Don't leave us in the middle of a batch edit. 11558 onEndBatchEdit(); 11559 11560 if (TextView.this instanceof ExtractEditText) { 11561 // terminateTextSelectionMode removes selection, which we want to keep when 11562 // ExtractEditText goes out of focus. 11563 final int selStart = getSelectionStart(); 11564 final int selEnd = getSelectionEnd(); 11565 hideControllers(); 11566 Selection.setSelection((Spannable) mText, selStart, selEnd); 11567 } else { 11568 hideControllers(); 11569 downgradeEasyCorrectionSpans(); 11570 } 11571 11572 // No need to create the controller 11573 if (mSelectionModifierCursorController != null) { 11574 mSelectionModifierCursorController.resetTouchOffsets(); 11575 } 11576 } 11577 } 11578 11579 void sendOnTextChanged(int start, int after) { 11580 updateSpellCheckSpans(start, start + after, false); 11581 mTextDisplayListIsValid = false; 11582 11583 // Hide the controllers as soon as text is modified (typing, procedural...) 11584 // We do not hide the span controllers, since they can be added when a new text is 11585 // inserted into the text view (voice IME). 11586 hideCursorControllers(); 11587 } 11588 11589 private int getLastTapPosition() { 11590 // No need to create the controller at that point, no last tap position saved 11591 if (mSelectionModifierCursorController != null) { 11592 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 11593 if (lastTapPosition >= 0) { 11594 // Safety check, should not be possible. 11595 if (lastTapPosition > mText.length()) { 11596 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 11597 + mText.length() + ")"); 11598 lastTapPosition = mText.length(); 11599 } 11600 return lastTapPosition; 11601 } 11602 } 11603 11604 return -1; 11605 } 11606 11607 void onWindowFocusChanged(boolean hasWindowFocus) { 11608 if (hasWindowFocus) { 11609 if (mBlink != null) { 11610 mBlink.uncancel(); 11611 makeBlink(); 11612 } 11613 } else { 11614 if (mBlink != null) { 11615 mBlink.cancel(); 11616 } 11617 if (mInputContentType != null) { 11618 mInputContentType.enterDown = false; 11619 } 11620 // Order matters! Must be done before onParentLostFocus to rely on isShowingUp 11621 hideControllers(); 11622 if (mSuggestionsPopupWindow != null) { 11623 mSuggestionsPopupWindow.onParentLostFocus(); 11624 } 11625 11626 // Don't leave us in the middle of a batch edit. 11627 onEndBatchEdit(); 11628 } 11629 } 11630 11631 void onTouchEvent(MotionEvent event) { 11632 if (hasSelectionController()) { 11633 getSelectionController().onTouchEvent(event); 11634 } 11635 11636 if (mShowSuggestionRunnable != null) { 11637 removeCallbacks(mShowSuggestionRunnable); 11638 mShowSuggestionRunnable = null; 11639 } 11640 11641 if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 11642 mLastDownPositionX = event.getX(); 11643 mLastDownPositionY = event.getY(); 11644 11645 // Reset this state; it will be re-set if super.onTouchEvent 11646 // causes focus to move to the view. 11647 mTouchFocusSelected = false; 11648 mIgnoreActionUpEvent = false; 11649 } 11650 } 11651 11652 void onDraw(Canvas canvas, Layout layout, int cursorOffsetVertical) { 11653 Path highlight = null; 11654 Paint highlightPaint = null; 11655 11656 int selStart = -1, selEnd = -1; 11657 boolean drawCursor = false; 11658 11659 highlightPaint = mHighlightPaint; 11660 // If there is no movement method, then there can be no selection. 11661 // Check that first and attempt to skip everything having to do with 11662 // the cursor. 11663 // XXX This is not strictly true -- a program could set the 11664 // selection manually if it really wanted to. 11665 if (mMovement != null && (isFocused() || isPressed())) { 11666 selStart = getSelectionStart(); 11667 selEnd = getSelectionEnd(); 11668 11669 if (selStart >= 0) { 11670 if (mHighlightPath == null) mHighlightPath = new Path(); 11671 11672 if (selStart == selEnd) { 11673 if (isCursorVisible() && 11674 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 11675 if (mHighlightPathBogus) { 11676 mHighlightPath.reset(); 11677 mLayout.getCursorPath(selStart, mHighlightPath, mText); 11678 updateCursorsPositions(); 11679 mHighlightPathBogus = false; 11680 } 11681 11682 // XXX should pass to skin instead of drawing directly 11683 highlightPaint.setColor(mCurTextColor); 11684 if (mCurrentAlpha != 255) { 11685 highlightPaint.setAlpha( 11686 (mCurrentAlpha * Color.alpha(mCurTextColor)) / 255); 11687 } 11688 highlightPaint.setStyle(Paint.Style.STROKE); 11689 highlight = mHighlightPath; 11690 drawCursor = mCursorCount > 0; 11691 } 11692 } else if (textCanBeSelected()) { 11693 if (mHighlightPathBogus) { 11694 mHighlightPath.reset(); 11695 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 11696 mHighlightPathBogus = false; 11697 } 11698 11699 // XXX should pass to skin instead of drawing directly 11700 highlightPaint.setColor(mHighlightColor); 11701 if (mCurrentAlpha != 255) { 11702 highlightPaint.setAlpha( 11703 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 11704 } 11705 highlightPaint.setStyle(Paint.Style.FILL); 11706 11707 highlight = mHighlightPath; 11708 } 11709 } 11710 } 11711 11712 final InputMethodState ims = mInputMethodState; 11713 if (ims != null && ims.mBatchEditNesting == 0) { 11714 InputMethodManager imm = InputMethodManager.peekInstance(); 11715 if (imm != null) { 11716 if (imm.isActive(TextView.this)) { 11717 boolean reported = false; 11718 if (ims.mContentChanged || ims.mSelectionModeChanged) { 11719 // We are in extract mode and the content has changed 11720 // in some way... just report complete new text to the 11721 // input method. 11722 reported = reportExtractedText(); 11723 } 11724 if (!reported && highlight != null) { 11725 int candStart = -1; 11726 int candEnd = -1; 11727 if (mText instanceof Spannable) { 11728 Spannable sp = (Spannable)mText; 11729 candStart = EditableInputConnection.getComposingSpanStart(sp); 11730 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 11731 } 11732 imm.updateSelection(TextView.this, selStart, selEnd, candStart, candEnd); 11733 } 11734 } 11735 11736 if (imm.isWatchingCursor(TextView.this) && highlight != null) { 11737 highlight.computeBounds(ims.mTmpRectF, true); 11738 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 11739 11740 canvas.getMatrix().mapPoints(ims.mTmpOffset); 11741 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 11742 11743 ims.mTmpRectF.offset(0, cursorOffsetVertical); 11744 11745 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 11746 (int)(ims.mTmpRectF.top + 0.5), 11747 (int)(ims.mTmpRectF.right + 0.5), 11748 (int)(ims.mTmpRectF.bottom + 0.5)); 11749 11750 imm.updateCursor(TextView.this, 11751 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 11752 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 11753 } 11754 } 11755 } 11756 11757 if (mCorrectionHighlighter != null) { 11758 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 11759 } 11760 11761 if (drawCursor) { 11762 drawCursor(canvas, cursorOffsetVertical); 11763 // Rely on the drawable entirely, do not draw the cursor line. 11764 // Has to be done after the IMM related code above which relies on the highlight. 11765 highlight = null; 11766 } 11767 11768 if (canHaveDisplayList() && canvas.isHardwareAccelerated()) { 11769 final int width = mRight - mLeft; 11770 final int height = mBottom - mTop; 11771 11772 if (mTextDisplayList == null || !mTextDisplayList.isValid() || 11773 !mTextDisplayListIsValid) { 11774 if (mTextDisplayList == null) { 11775 mTextDisplayList = getHardwareRenderer().createDisplayList("Text"); 11776 } 11777 11778 final HardwareCanvas hardwareCanvas = mTextDisplayList.start(); 11779 try { 11780 hardwareCanvas.setViewport(width, height); 11781 // The dirty rect should always be null for a display list 11782 hardwareCanvas.onPreDraw(null); 11783 hardwareCanvas.translate(-mScrollX, -mScrollY); 11784 layout.draw(hardwareCanvas, highlight, highlightPaint, cursorOffsetVertical); 11785 hardwareCanvas.translate(mScrollX, mScrollY); 11786 } finally { 11787 hardwareCanvas.onPostDraw(); 11788 mTextDisplayList.end(); 11789 mTextDisplayListIsValid = true; 11790 } 11791 } 11792 canvas.translate(mScrollX, mScrollY); 11793 ((HardwareCanvas) canvas).drawDisplayList(mTextDisplayList, width, height, null, 11794 DisplayList.FLAG_CLIP_CHILDREN); 11795 canvas.translate(-mScrollX, -mScrollY); 11796 } else { 11797 layout.draw(canvas, highlight, highlightPaint, cursorOffsetVertical); 11798 } 11799 11800 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 11801 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 11802 layout.draw(canvas, highlight, highlightPaint, cursorOffsetVertical); 11803 } 11804 } 11805 } 11806} 11807