TextView.java revision 0f6ba9267ff4ef8f87aecdfc2bb8fb7e2ba2e42e
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.ClickableSpan; 88import android.text.style.EasyEditSpan; 89import android.text.style.ParagraphStyle; 90import android.text.style.SpellCheckSpan; 91import android.text.style.SuggestionRangeSpan; 92import android.text.style.SuggestionSpan; 93import android.text.style.TextAppearanceSpan; 94import android.text.style.URLSpan; 95import android.text.style.UpdateAppearance; 96import android.text.util.Linkify; 97import android.util.AttributeSet; 98import android.util.DisplayMetrics; 99import android.util.FloatMath; 100import android.util.Log; 101import android.util.TypedValue; 102import android.view.ActionMode; 103import android.view.ActionMode.Callback; 104import android.view.DragEvent; 105import android.view.Gravity; 106import android.view.HapticFeedbackConstants; 107import android.view.KeyCharacterMap; 108import android.view.KeyEvent; 109import android.view.LayoutInflater; 110import android.view.Menu; 111import android.view.MenuItem; 112import android.view.MotionEvent; 113import android.view.View; 114import android.view.ViewConfiguration; 115import android.view.ViewDebug; 116import android.view.ViewGroup; 117import android.view.ViewGroup.LayoutParams; 118import android.view.ViewParent; 119import android.view.ViewRootImpl; 120import android.view.ViewTreeObserver; 121import android.view.WindowManager; 122import android.view.accessibility.AccessibilityEvent; 123import android.view.accessibility.AccessibilityManager; 124import android.view.accessibility.AccessibilityNodeInfo; 125import android.view.animation.AnimationUtils; 126import android.view.inputmethod.BaseInputConnection; 127import android.view.inputmethod.CompletionInfo; 128import android.view.inputmethod.CorrectionInfo; 129import android.view.inputmethod.EditorInfo; 130import android.view.inputmethod.ExtractedText; 131import android.view.inputmethod.ExtractedTextRequest; 132import android.view.inputmethod.InputConnection; 133import android.view.inputmethod.InputMethodManager; 134import android.view.inputmethod.InputMethodSubtype; 135import android.view.textservice.SpellCheckerSubtype; 136import android.view.textservice.TextServicesManager; 137import android.widget.AdapterView.OnItemClickListener; 138import android.widget.RemoteViews.RemoteView; 139 140import com.android.internal.util.FastMath; 141import com.android.internal.widget.EditableInputConnection; 142 143import org.xmlpull.v1.XmlPullParserException; 144 145import java.io.IOException; 146import java.lang.ref.WeakReference; 147import java.text.BreakIterator; 148import java.util.ArrayList; 149import java.util.Arrays; 150import java.util.Comparator; 151import java.util.HashMap; 152import java.util.Locale; 153 154/** 155 * Displays text to the user and optionally allows them to edit it. A TextView 156 * is a complete text editor, however the basic class is configured to not 157 * allow editing; see {@link EditText} for a subclass that configures the text 158 * view for editing. 159 * 160 * <p> 161 * <b>XML attributes</b> 162 * <p> 163 * See {@link android.R.styleable#TextView TextView Attributes}, 164 * {@link android.R.styleable#View View Attributes} 165 * 166 * @attr ref android.R.styleable#TextView_text 167 * @attr ref android.R.styleable#TextView_bufferType 168 * @attr ref android.R.styleable#TextView_hint 169 * @attr ref android.R.styleable#TextView_textColor 170 * @attr ref android.R.styleable#TextView_textColorHighlight 171 * @attr ref android.R.styleable#TextView_textColorHint 172 * @attr ref android.R.styleable#TextView_textAppearance 173 * @attr ref android.R.styleable#TextView_textColorLink 174 * @attr ref android.R.styleable#TextView_textSize 175 * @attr ref android.R.styleable#TextView_textScaleX 176 * @attr ref android.R.styleable#TextView_typeface 177 * @attr ref android.R.styleable#TextView_textStyle 178 * @attr ref android.R.styleable#TextView_cursorVisible 179 * @attr ref android.R.styleable#TextView_maxLines 180 * @attr ref android.R.styleable#TextView_maxHeight 181 * @attr ref android.R.styleable#TextView_lines 182 * @attr ref android.R.styleable#TextView_height 183 * @attr ref android.R.styleable#TextView_minLines 184 * @attr ref android.R.styleable#TextView_minHeight 185 * @attr ref android.R.styleable#TextView_maxEms 186 * @attr ref android.R.styleable#TextView_maxWidth 187 * @attr ref android.R.styleable#TextView_ems 188 * @attr ref android.R.styleable#TextView_width 189 * @attr ref android.R.styleable#TextView_minEms 190 * @attr ref android.R.styleable#TextView_minWidth 191 * @attr ref android.R.styleable#TextView_gravity 192 * @attr ref android.R.styleable#TextView_scrollHorizontally 193 * @attr ref android.R.styleable#TextView_password 194 * @attr ref android.R.styleable#TextView_singleLine 195 * @attr ref android.R.styleable#TextView_selectAllOnFocus 196 * @attr ref android.R.styleable#TextView_includeFontPadding 197 * @attr ref android.R.styleable#TextView_maxLength 198 * @attr ref android.R.styleable#TextView_shadowColor 199 * @attr ref android.R.styleable#TextView_shadowDx 200 * @attr ref android.R.styleable#TextView_shadowDy 201 * @attr ref android.R.styleable#TextView_shadowRadius 202 * @attr ref android.R.styleable#TextView_autoLink 203 * @attr ref android.R.styleable#TextView_linksClickable 204 * @attr ref android.R.styleable#TextView_numeric 205 * @attr ref android.R.styleable#TextView_digits 206 * @attr ref android.R.styleable#TextView_phoneNumber 207 * @attr ref android.R.styleable#TextView_inputMethod 208 * @attr ref android.R.styleable#TextView_capitalize 209 * @attr ref android.R.styleable#TextView_autoText 210 * @attr ref android.R.styleable#TextView_editable 211 * @attr ref android.R.styleable#TextView_freezesText 212 * @attr ref android.R.styleable#TextView_ellipsize 213 * @attr ref android.R.styleable#TextView_drawableTop 214 * @attr ref android.R.styleable#TextView_drawableBottom 215 * @attr ref android.R.styleable#TextView_drawableRight 216 * @attr ref android.R.styleable#TextView_drawableLeft 217 * @attr ref android.R.styleable#TextView_drawablePadding 218 * @attr ref android.R.styleable#TextView_lineSpacingExtra 219 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 220 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 221 * @attr ref android.R.styleable#TextView_inputType 222 * @attr ref android.R.styleable#TextView_imeOptions 223 * @attr ref android.R.styleable#TextView_privateImeOptions 224 * @attr ref android.R.styleable#TextView_imeActionLabel 225 * @attr ref android.R.styleable#TextView_imeActionId 226 * @attr ref android.R.styleable#TextView_editorExtras 227 */ 228@RemoteView 229public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 230 static final String LOG_TAG = "TextView"; 231 static final boolean DEBUG_EXTRACT = false; 232 233 private static final int PRIORITY = 100; 234 private int mCurrentAlpha = 255; 235 236 final int[] mTempCoords = new int[2]; 237 Rect mTempRect; 238 239 private ColorStateList mTextColor; 240 private int mCurTextColor; 241 private ColorStateList mHintTextColor; 242 private ColorStateList mLinkTextColor; 243 private int mCurHintTextColor; 244 private boolean mFreezesText; 245 private boolean mFrozenWithFocus; 246 private boolean mTemporaryDetach; 247 private boolean mDispatchTemporaryDetach; 248 249 private boolean mDiscardNextActionUp = false; 250 private boolean mIgnoreActionUpEvent = false; 251 252 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 253 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 254 255 private float mShadowRadius, mShadowDx, mShadowDy; 256 257 private static final int PREDRAW_NOT_REGISTERED = 0; 258 private static final int PREDRAW_PENDING = 1; 259 private static final int PREDRAW_DONE = 2; 260 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 261 262 private TextUtils.TruncateAt mEllipsize = null; 263 264 // Enum for the "typeface" XML parameter. 265 // TODO: How can we get this from the XML instead of hardcoding it here? 266 private static final int SANS = 1; 267 private static final int SERIF = 2; 268 private static final int MONOSPACE = 3; 269 270 // Bitfield for the "numeric" XML parameter. 271 // TODO: How can we get this from the XML instead of hardcoding it here? 272 private static final int SIGNED = 2; 273 private static final int DECIMAL = 4; 274 275 static class Drawables { 276 final Rect mCompoundRect = new Rect(); 277 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight, 278 mDrawableStart, mDrawableEnd; 279 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 280 mDrawableSizeStart, mDrawableSizeEnd; 281 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 282 mDrawableHeightStart, mDrawableHeightEnd; 283 int mDrawablePadding; 284 } 285 private Drawables mDrawables; 286 287 private CharSequence mError; 288 private boolean mErrorWasChanged; 289 private ErrorPopup mPopup; 290 /** 291 * This flag is set if the TextView tries to display an error before it 292 * is attached to the window (so its position is still unknown). 293 * It causes the error to be shown later, when onAttachedToWindow() 294 * is called. 295 */ 296 private boolean mShowErrorAfterAttach; 297 298 private CharWrapper mCharWrapper = null; 299 300 private boolean mSelectionMoved = false; 301 private boolean mTouchFocusSelected = false; 302 303 private Marquee mMarquee; 304 private boolean mRestartMarquee; 305 306 private int mMarqueeRepeatLimit = 3; 307 308 static class InputContentType { 309 int imeOptions = EditorInfo.IME_NULL; 310 String privateImeOptions; 311 CharSequence imeActionLabel; 312 int imeActionId; 313 Bundle extras; 314 OnEditorActionListener onEditorActionListener; 315 boolean enterDown; 316 } 317 InputContentType mInputContentType; 318 319 static class InputMethodState { 320 Rect mCursorRectInWindow = new Rect(); 321 RectF mTmpRectF = new RectF(); 322 float[] mTmpOffset = new float[2]; 323 ExtractedTextRequest mExtracting; 324 final ExtractedText mTmpExtracted = new ExtractedText(); 325 int mBatchEditNesting; 326 boolean mCursorChanged; 327 boolean mSelectionModeChanged; 328 boolean mContentChanged; 329 int mChangedStart, mChangedEnd, mChangedDelta; 330 } 331 InputMethodState mInputMethodState; 332 333 private int mTextSelectHandleLeftRes; 334 private int mTextSelectHandleRightRes; 335 private int mTextSelectHandleRes; 336 337 private int mTextEditSuggestionItemLayout; 338 private SuggestionsPopupWindow mSuggestionsPopupWindow; 339 private SuggestionRangeSpan mSuggestionRangeSpan; 340 341 private int mCursorDrawableRes; 342 private final Drawable[] mCursorDrawable = new Drawable[2]; 343 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 344 345 private Drawable mSelectHandleLeft; 346 private Drawable mSelectHandleRight; 347 private Drawable mSelectHandleCenter; 348 349 // Global listener that detects changes in the global position of the TextView 350 private PositionListener mPositionListener; 351 352 private float mLastDownPositionX, mLastDownPositionY; 353 private Callback mCustomSelectionActionModeCallback; 354 355 private final int mSquaredTouchSlopDistance; 356 // Set when this TextView gained focus with some text selected. Will start selection mode. 357 private boolean mCreatedWithASelection = false; 358 359 private WordIterator mWordIterator; 360 361 private SpellChecker mSpellChecker; 362 363 private boolean mSoftInputShownOnFocus = true; 364 365 // The alignment to pass to Layout, or null if not resolved. 366 private Layout.Alignment mLayoutAlignment; 367 368 // The default value for mTextAlign. 369 private TextAlign mTextAlign = TextAlign.INHERIT; 370 371 private static enum TextAlign { 372 INHERIT, GRAVITY, TEXT_START, TEXT_END, CENTER, VIEW_START, VIEW_END; 373 } 374 375 private boolean mResolvedDrawables = false; 376 377 /** 378 * On some devices the fading edges add a performance penalty if used 379 * extensively in the same layout. This mode indicates how the marquee 380 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 381 */ 382 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 383 384 /** 385 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 386 * the layout that should be used when the mode switches. 387 */ 388 private Layout mSavedMarqueeModeLayout; 389 390 /** 391 * Draw marquee text with fading edges as usual 392 */ 393 private static final int MARQUEE_FADE_NORMAL = 0; 394 395 /** 396 * Draw marquee text as ellipsize end while inactive instead of with the fade. 397 * (Useful for devices where the fade can be expensive if overdone) 398 */ 399 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 400 401 /** 402 * Draw marquee text with fading edges because it is currently active/animating. 403 */ 404 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 405 406 /* 407 * Kick-start the font cache for the zygote process (to pay the cost of 408 * initializing freetype for our default font only once). 409 */ 410 static { 411 Paint p = new Paint(); 412 p.setAntiAlias(true); 413 // We don't care about the result, just the side-effect of measuring. 414 p.measureText("H"); 415 } 416 417 /** 418 * Interface definition for a callback to be invoked when an action is 419 * performed on the editor. 420 */ 421 public interface OnEditorActionListener { 422 /** 423 * Called when an action is being performed. 424 * 425 * @param v The view that was clicked. 426 * @param actionId Identifier of the action. This will be either the 427 * identifier you supplied, or {@link EditorInfo#IME_NULL 428 * EditorInfo.IME_NULL} if being called due to the enter key 429 * being pressed. 430 * @param event If triggered by an enter key, this is the event; 431 * otherwise, this is null. 432 * @return Return true if you have consumed the action, else false. 433 */ 434 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 435 } 436 437 public TextView(Context context) { 438 this(context, null); 439 } 440 441 public TextView(Context context, 442 AttributeSet attrs) { 443 this(context, attrs, com.android.internal.R.attr.textViewStyle); 444 } 445 446 @SuppressWarnings("deprecation") 447 public TextView(Context context, 448 AttributeSet attrs, 449 int defStyle) { 450 super(context, attrs, defStyle); 451 mText = ""; 452 453 final Resources res = getResources(); 454 final CompatibilityInfo compat = res.getCompatibilityInfo(); 455 456 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 457 mTextPaint.density = res.getDisplayMetrics().density; 458 mTextPaint.setCompatibilityScaling(compat.applicationScale); 459 460 // If we get the paint from the skin, we should set it to left, since 461 // the layout always wants it to be left. 462 // mTextPaint.setTextAlign(Paint.Align.LEFT); 463 464 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 465 mHighlightPaint.setCompatibilityScaling(compat.applicationScale); 466 467 mMovement = getDefaultMovementMethod(); 468 mTransformation = null; 469 470 int textColorHighlight = 0; 471 ColorStateList textColor = null; 472 ColorStateList textColorHint = null; 473 ColorStateList textColorLink = null; 474 int textSize = 15; 475 int typefaceIndex = -1; 476 int styleIndex = -1; 477 boolean allCaps = false; 478 479 final Resources.Theme theme = context.getTheme(); 480 481 /* 482 * Look the appearance up without checking first if it exists because 483 * almost every TextView has one and it greatly simplifies the logic 484 * to be able to parse the appearance first and then let specific tags 485 * for this View override it. 486 */ 487 TypedArray a = theme.obtainStyledAttributes( 488 attrs, com.android.internal.R.styleable.TextViewAppearance, defStyle, 0); 489 TypedArray appearance = null; 490 int ap = a.getResourceId( 491 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 492 a.recycle(); 493 if (ap != -1) { 494 appearance = theme.obtainStyledAttributes( 495 ap, com.android.internal.R.styleable.TextAppearance); 496 } 497 if (appearance != null) { 498 int n = appearance.getIndexCount(); 499 for (int i = 0; i < n; i++) { 500 int attr = appearance.getIndex(i); 501 502 switch (attr) { 503 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 504 textColorHighlight = appearance.getColor(attr, textColorHighlight); 505 break; 506 507 case com.android.internal.R.styleable.TextAppearance_textColor: 508 textColor = appearance.getColorStateList(attr); 509 break; 510 511 case com.android.internal.R.styleable.TextAppearance_textColorHint: 512 textColorHint = appearance.getColorStateList(attr); 513 break; 514 515 case com.android.internal.R.styleable.TextAppearance_textColorLink: 516 textColorLink = appearance.getColorStateList(attr); 517 break; 518 519 case com.android.internal.R.styleable.TextAppearance_textSize: 520 textSize = appearance.getDimensionPixelSize(attr, textSize); 521 break; 522 523 case com.android.internal.R.styleable.TextAppearance_typeface: 524 typefaceIndex = appearance.getInt(attr, -1); 525 break; 526 527 case com.android.internal.R.styleable.TextAppearance_textStyle: 528 styleIndex = appearance.getInt(attr, -1); 529 break; 530 531 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 532 allCaps = appearance.getBoolean(attr, false); 533 break; 534 } 535 } 536 537 appearance.recycle(); 538 } 539 540 boolean editable = getDefaultEditable(); 541 CharSequence inputMethod = null; 542 int numeric = 0; 543 CharSequence digits = null; 544 boolean phone = false; 545 boolean autotext = false; 546 int autocap = -1; 547 int buffertype = 0; 548 boolean selectallonfocus = false; 549 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 550 drawableBottom = null, drawableStart = null, drawableEnd = null; 551 int drawablePadding = 0; 552 int ellipsize = -1; 553 boolean singleLine = false; 554 int maxlength = -1; 555 CharSequence text = ""; 556 CharSequence hint = null; 557 int shadowcolor = 0; 558 float dx = 0, dy = 0, r = 0; 559 boolean password = false; 560 int inputType = EditorInfo.TYPE_NULL; 561 562 a = theme.obtainStyledAttributes( 563 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 564 565 int n = a.getIndexCount(); 566 for (int i = 0; i < n; i++) { 567 int attr = a.getIndex(i); 568 569 switch (attr) { 570 case com.android.internal.R.styleable.TextView_editable: 571 editable = a.getBoolean(attr, editable); 572 break; 573 574 case com.android.internal.R.styleable.TextView_inputMethod: 575 inputMethod = a.getText(attr); 576 break; 577 578 case com.android.internal.R.styleable.TextView_numeric: 579 numeric = a.getInt(attr, numeric); 580 break; 581 582 case com.android.internal.R.styleable.TextView_digits: 583 digits = a.getText(attr); 584 break; 585 586 case com.android.internal.R.styleable.TextView_phoneNumber: 587 phone = a.getBoolean(attr, phone); 588 break; 589 590 case com.android.internal.R.styleable.TextView_autoText: 591 autotext = a.getBoolean(attr, autotext); 592 break; 593 594 case com.android.internal.R.styleable.TextView_capitalize: 595 autocap = a.getInt(attr, autocap); 596 break; 597 598 case com.android.internal.R.styleable.TextView_bufferType: 599 buffertype = a.getInt(attr, buffertype); 600 break; 601 602 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 603 selectallonfocus = a.getBoolean(attr, selectallonfocus); 604 break; 605 606 case com.android.internal.R.styleable.TextView_autoLink: 607 mAutoLinkMask = a.getInt(attr, 0); 608 break; 609 610 case com.android.internal.R.styleable.TextView_linksClickable: 611 mLinksClickable = a.getBoolean(attr, true); 612 break; 613 614// TODO uncomment when this attribute is made public in the next release 615// also add TextView_showSoftInputOnFocus to the list of attributes above 616// case com.android.internal.R.styleable.TextView_showSoftInputOnFocus: 617// setShowSoftInputOnFocus(a.getBoolean(attr, true)); 618// break; 619 620 case com.android.internal.R.styleable.TextView_drawableLeft: 621 drawableLeft = a.getDrawable(attr); 622 break; 623 624 case com.android.internal.R.styleable.TextView_drawableTop: 625 drawableTop = a.getDrawable(attr); 626 break; 627 628 case com.android.internal.R.styleable.TextView_drawableRight: 629 drawableRight = a.getDrawable(attr); 630 break; 631 632 case com.android.internal.R.styleable.TextView_drawableBottom: 633 drawableBottom = a.getDrawable(attr); 634 break; 635 636 case com.android.internal.R.styleable.TextView_drawableStart: 637 drawableStart = a.getDrawable(attr); 638 break; 639 640 case com.android.internal.R.styleable.TextView_drawableEnd: 641 drawableEnd = a.getDrawable(attr); 642 break; 643 644 case com.android.internal.R.styleable.TextView_drawablePadding: 645 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 646 break; 647 648 case com.android.internal.R.styleable.TextView_maxLines: 649 setMaxLines(a.getInt(attr, -1)); 650 break; 651 652 case com.android.internal.R.styleable.TextView_maxHeight: 653 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 654 break; 655 656 case com.android.internal.R.styleable.TextView_lines: 657 setLines(a.getInt(attr, -1)); 658 break; 659 660 case com.android.internal.R.styleable.TextView_height: 661 setHeight(a.getDimensionPixelSize(attr, -1)); 662 break; 663 664 case com.android.internal.R.styleable.TextView_minLines: 665 setMinLines(a.getInt(attr, -1)); 666 break; 667 668 case com.android.internal.R.styleable.TextView_minHeight: 669 setMinHeight(a.getDimensionPixelSize(attr, -1)); 670 break; 671 672 case com.android.internal.R.styleable.TextView_maxEms: 673 setMaxEms(a.getInt(attr, -1)); 674 break; 675 676 case com.android.internal.R.styleable.TextView_maxWidth: 677 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 678 break; 679 680 case com.android.internal.R.styleable.TextView_ems: 681 setEms(a.getInt(attr, -1)); 682 break; 683 684 case com.android.internal.R.styleable.TextView_width: 685 setWidth(a.getDimensionPixelSize(attr, -1)); 686 break; 687 688 case com.android.internal.R.styleable.TextView_minEms: 689 setMinEms(a.getInt(attr, -1)); 690 break; 691 692 case com.android.internal.R.styleable.TextView_minWidth: 693 setMinWidth(a.getDimensionPixelSize(attr, -1)); 694 break; 695 696 case com.android.internal.R.styleable.TextView_gravity: 697 setGravity(a.getInt(attr, -1)); 698 break; 699 700 case com.android.internal.R.styleable.TextView_hint: 701 hint = a.getText(attr); 702 break; 703 704 case com.android.internal.R.styleable.TextView_text: 705 text = a.getText(attr); 706 break; 707 708 case com.android.internal.R.styleable.TextView_scrollHorizontally: 709 if (a.getBoolean(attr, false)) { 710 setHorizontallyScrolling(true); 711 } 712 break; 713 714 case com.android.internal.R.styleable.TextView_singleLine: 715 singleLine = a.getBoolean(attr, singleLine); 716 break; 717 718 case com.android.internal.R.styleable.TextView_ellipsize: 719 ellipsize = a.getInt(attr, ellipsize); 720 break; 721 722 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 723 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 724 break; 725 726 case com.android.internal.R.styleable.TextView_includeFontPadding: 727 if (!a.getBoolean(attr, true)) { 728 setIncludeFontPadding(false); 729 } 730 break; 731 732 case com.android.internal.R.styleable.TextView_cursorVisible: 733 if (!a.getBoolean(attr, true)) { 734 setCursorVisible(false); 735 } 736 break; 737 738 case com.android.internal.R.styleable.TextView_maxLength: 739 maxlength = a.getInt(attr, -1); 740 break; 741 742 case com.android.internal.R.styleable.TextView_textScaleX: 743 setTextScaleX(a.getFloat(attr, 1.0f)); 744 break; 745 746 case com.android.internal.R.styleable.TextView_freezesText: 747 mFreezesText = a.getBoolean(attr, false); 748 break; 749 750 case com.android.internal.R.styleable.TextView_shadowColor: 751 shadowcolor = a.getInt(attr, 0); 752 break; 753 754 case com.android.internal.R.styleable.TextView_shadowDx: 755 dx = a.getFloat(attr, 0); 756 break; 757 758 case com.android.internal.R.styleable.TextView_shadowDy: 759 dy = a.getFloat(attr, 0); 760 break; 761 762 case com.android.internal.R.styleable.TextView_shadowRadius: 763 r = a.getFloat(attr, 0); 764 break; 765 766 case com.android.internal.R.styleable.TextView_enabled: 767 setEnabled(a.getBoolean(attr, isEnabled())); 768 break; 769 770 case com.android.internal.R.styleable.TextView_textColorHighlight: 771 textColorHighlight = a.getColor(attr, textColorHighlight); 772 break; 773 774 case com.android.internal.R.styleable.TextView_textColor: 775 textColor = a.getColorStateList(attr); 776 break; 777 778 case com.android.internal.R.styleable.TextView_textColorHint: 779 textColorHint = a.getColorStateList(attr); 780 break; 781 782 case com.android.internal.R.styleable.TextView_textColorLink: 783 textColorLink = a.getColorStateList(attr); 784 break; 785 786 case com.android.internal.R.styleable.TextView_textSize: 787 textSize = a.getDimensionPixelSize(attr, textSize); 788 break; 789 790 case com.android.internal.R.styleable.TextView_typeface: 791 typefaceIndex = a.getInt(attr, typefaceIndex); 792 break; 793 794 case com.android.internal.R.styleable.TextView_textStyle: 795 styleIndex = a.getInt(attr, styleIndex); 796 break; 797 798 case com.android.internal.R.styleable.TextView_password: 799 password = a.getBoolean(attr, password); 800 break; 801 802 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 803 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 804 break; 805 806 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 807 mSpacingMult = a.getFloat(attr, mSpacingMult); 808 break; 809 810 case com.android.internal.R.styleable.TextView_inputType: 811 inputType = a.getInt(attr, mInputType); 812 break; 813 814 case com.android.internal.R.styleable.TextView_imeOptions: 815 if (mInputContentType == null) { 816 mInputContentType = new InputContentType(); 817 } 818 mInputContentType.imeOptions = a.getInt(attr, 819 mInputContentType.imeOptions); 820 break; 821 822 case com.android.internal.R.styleable.TextView_imeActionLabel: 823 if (mInputContentType == null) { 824 mInputContentType = new InputContentType(); 825 } 826 mInputContentType.imeActionLabel = a.getText(attr); 827 break; 828 829 case com.android.internal.R.styleable.TextView_imeActionId: 830 if (mInputContentType == null) { 831 mInputContentType = new InputContentType(); 832 } 833 mInputContentType.imeActionId = a.getInt(attr, 834 mInputContentType.imeActionId); 835 break; 836 837 case com.android.internal.R.styleable.TextView_privateImeOptions: 838 setPrivateImeOptions(a.getString(attr)); 839 break; 840 841 case com.android.internal.R.styleable.TextView_editorExtras: 842 try { 843 setInputExtras(a.getResourceId(attr, 0)); 844 } catch (XmlPullParserException e) { 845 Log.w(LOG_TAG, "Failure reading input extras", e); 846 } catch (IOException e) { 847 Log.w(LOG_TAG, "Failure reading input extras", e); 848 } 849 break; 850 851 case com.android.internal.R.styleable.TextView_textCursorDrawable: 852 mCursorDrawableRes = a.getResourceId(attr, 0); 853 break; 854 855 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 856 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 857 break; 858 859 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 860 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 861 break; 862 863 case com.android.internal.R.styleable.TextView_textSelectHandle: 864 mTextSelectHandleRes = a.getResourceId(attr, 0); 865 break; 866 867 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 868 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 869 break; 870 871 case com.android.internal.R.styleable.TextView_textIsSelectable: 872 mTextIsSelectable = a.getBoolean(attr, false); 873 break; 874 875 case com.android.internal.R.styleable.TextView_textAllCaps: 876 allCaps = a.getBoolean(attr, false); 877 break; 878 } 879 } 880 a.recycle(); 881 882 BufferType bufferType = BufferType.EDITABLE; 883 884 final int variation = 885 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 886 final boolean passwordInputType = variation 887 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 888 final boolean webPasswordInputType = variation 889 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 890 final boolean numberPasswordInputType = variation 891 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 892 893 if (inputMethod != null) { 894 Class<?> c; 895 896 try { 897 c = Class.forName(inputMethod.toString()); 898 } catch (ClassNotFoundException ex) { 899 throw new RuntimeException(ex); 900 } 901 902 try { 903 mInput = (KeyListener) c.newInstance(); 904 } catch (InstantiationException ex) { 905 throw new RuntimeException(ex); 906 } catch (IllegalAccessException ex) { 907 throw new RuntimeException(ex); 908 } 909 try { 910 mInputType = inputType != EditorInfo.TYPE_NULL 911 ? inputType 912 : mInput.getInputType(); 913 } catch (IncompatibleClassChangeError e) { 914 mInputType = EditorInfo.TYPE_CLASS_TEXT; 915 } 916 } else if (digits != null) { 917 mInput = DigitsKeyListener.getInstance(digits.toString()); 918 // If no input type was specified, we will default to generic 919 // text, since we can't tell the IME about the set of digits 920 // that was selected. 921 mInputType = inputType != EditorInfo.TYPE_NULL 922 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 923 } else if (inputType != EditorInfo.TYPE_NULL) { 924 setInputType(inputType, true); 925 // If set, the input type overrides what was set using the deprecated singleLine flag. 926 singleLine = !isMultilineInputType(inputType); 927 } else if (phone) { 928 mInput = DialerKeyListener.getInstance(); 929 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 930 } else if (numeric != 0) { 931 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 932 (numeric & DECIMAL) != 0); 933 inputType = EditorInfo.TYPE_CLASS_NUMBER; 934 if ((numeric & SIGNED) != 0) { 935 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 936 } 937 if ((numeric & DECIMAL) != 0) { 938 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 939 } 940 mInputType = inputType; 941 } else if (autotext || autocap != -1) { 942 TextKeyListener.Capitalize cap; 943 944 inputType = EditorInfo.TYPE_CLASS_TEXT; 945 946 switch (autocap) { 947 case 1: 948 cap = TextKeyListener.Capitalize.SENTENCES; 949 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 950 break; 951 952 case 2: 953 cap = TextKeyListener.Capitalize.WORDS; 954 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 955 break; 956 957 case 3: 958 cap = TextKeyListener.Capitalize.CHARACTERS; 959 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 960 break; 961 962 default: 963 cap = TextKeyListener.Capitalize.NONE; 964 break; 965 } 966 967 mInput = TextKeyListener.getInstance(autotext, cap); 968 mInputType = inputType; 969 } else if (mTextIsSelectable) { 970 // Prevent text changes from keyboard. 971 mInputType = EditorInfo.TYPE_NULL; 972 mInput = null; 973 bufferType = BufferType.SPANNABLE; 974 // Required to request focus while in touch mode. 975 setFocusableInTouchMode(true); 976 // So that selection can be changed using arrow keys and touch is handled. 977 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 978 } else if (editable) { 979 mInput = TextKeyListener.getInstance(); 980 mInputType = EditorInfo.TYPE_CLASS_TEXT; 981 } else { 982 mInput = null; 983 984 switch (buffertype) { 985 case 0: 986 bufferType = BufferType.NORMAL; 987 break; 988 case 1: 989 bufferType = BufferType.SPANNABLE; 990 break; 991 case 2: 992 bufferType = BufferType.EDITABLE; 993 break; 994 } 995 } 996 997 // mInputType has been set from inputType, possibly modified by mInputMethod. 998 // Specialize mInputType to [web]password if we have a text class and the original input 999 // type was a password. 1000 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 1001 if (password || passwordInputType) { 1002 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1003 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 1004 } 1005 if (webPasswordInputType) { 1006 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1007 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 1008 } 1009 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 1010 if (numberPasswordInputType) { 1011 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1012 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 1013 } 1014 } 1015 1016 if (selectallonfocus) { 1017 mSelectAllOnFocus = true; 1018 1019 if (bufferType == BufferType.NORMAL) 1020 bufferType = BufferType.SPANNABLE; 1021 } 1022 1023 setCompoundDrawablesWithIntrinsicBounds( 1024 drawableLeft, drawableTop, drawableRight, drawableBottom); 1025 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1026 setCompoundDrawablePadding(drawablePadding); 1027 1028 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1029 // of lines of height are unchanged for multi-line TextViews. 1030 setInputTypeSingleLine(singleLine); 1031 applySingleLine(singleLine, singleLine, singleLine); 1032 1033 if (singleLine && mInput == null && ellipsize < 0) { 1034 ellipsize = 3; // END 1035 } 1036 1037 switch (ellipsize) { 1038 case 1: 1039 setEllipsize(TextUtils.TruncateAt.START); 1040 break; 1041 case 2: 1042 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1043 break; 1044 case 3: 1045 setEllipsize(TextUtils.TruncateAt.END); 1046 break; 1047 case 4: 1048 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1049 setHorizontalFadingEdgeEnabled(true); 1050 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1051 } else { 1052 setHorizontalFadingEdgeEnabled(false); 1053 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1054 } 1055 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1056 break; 1057 } 1058 1059 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 1060 setHintTextColor(textColorHint); 1061 setLinkTextColor(textColorLink); 1062 if (textColorHighlight != 0) { 1063 setHighlightColor(textColorHighlight); 1064 } 1065 setRawTextSize(textSize); 1066 1067 if (allCaps) { 1068 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 1069 } 1070 1071 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 1072 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1073 typefaceIndex = MONOSPACE; 1074 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1075 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1076 typefaceIndex = MONOSPACE; 1077 } 1078 1079 setTypefaceByIndex(typefaceIndex, styleIndex); 1080 1081 if (shadowcolor != 0) { 1082 setShadowLayer(r, dx, dy, shadowcolor); 1083 } 1084 1085 if (maxlength >= 0) { 1086 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1087 } else { 1088 setFilters(NO_FILTERS); 1089 } 1090 1091 setText(text, bufferType); 1092 if (hint != null) setHint(hint); 1093 1094 /* 1095 * Views are not normally focusable unless specified to be. 1096 * However, TextViews that have input or movement methods *are* 1097 * focusable by default. 1098 */ 1099 a = context.obtainStyledAttributes(attrs, 1100 com.android.internal.R.styleable.View, 1101 defStyle, 0); 1102 1103 boolean focusable = mMovement != null || mInput != null; 1104 boolean clickable = focusable; 1105 boolean longClickable = focusable; 1106 1107 n = a.getIndexCount(); 1108 for (int i = 0; i < n; i++) { 1109 int attr = a.getIndex(i); 1110 1111 switch (attr) { 1112 case com.android.internal.R.styleable.View_focusable: 1113 focusable = a.getBoolean(attr, focusable); 1114 break; 1115 1116 case com.android.internal.R.styleable.View_clickable: 1117 clickable = a.getBoolean(attr, clickable); 1118 break; 1119 1120 case com.android.internal.R.styleable.View_longClickable: 1121 longClickable = a.getBoolean(attr, longClickable); 1122 break; 1123 } 1124 } 1125 a.recycle(); 1126 1127 setFocusable(focusable); 1128 setClickable(clickable); 1129 setLongClickable(longClickable); 1130 1131 prepareCursorControllers(); 1132 1133 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1134 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1135 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1136 } 1137 1138 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1139 Typeface tf = null; 1140 switch (typefaceIndex) { 1141 case SANS: 1142 tf = Typeface.SANS_SERIF; 1143 break; 1144 1145 case SERIF: 1146 tf = Typeface.SERIF; 1147 break; 1148 1149 case MONOSPACE: 1150 tf = Typeface.MONOSPACE; 1151 break; 1152 } 1153 1154 setTypeface(tf, styleIndex); 1155 } 1156 1157 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1158 boolean hasRelativeDrawables = (start != null) || (end != null); 1159 if (hasRelativeDrawables) { 1160 Drawables dr = mDrawables; 1161 if (dr == null) { 1162 mDrawables = dr = new Drawables(); 1163 } 1164 final Rect compoundRect = dr.mCompoundRect; 1165 int[] state = getDrawableState(); 1166 if (start != null) { 1167 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1168 start.setState(state); 1169 start.copyBounds(compoundRect); 1170 start.setCallback(this); 1171 1172 dr.mDrawableStart = start; 1173 dr.mDrawableSizeStart = compoundRect.width(); 1174 dr.mDrawableHeightStart = compoundRect.height(); 1175 } else { 1176 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1177 } 1178 if (end != null) { 1179 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1180 end.setState(state); 1181 end.copyBounds(compoundRect); 1182 end.setCallback(this); 1183 1184 dr.mDrawableEnd = end; 1185 dr.mDrawableSizeEnd = compoundRect.width(); 1186 dr.mDrawableHeightEnd = compoundRect.height(); 1187 } else { 1188 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1189 } 1190 } 1191 } 1192 1193 @Override 1194 public void setEnabled(boolean enabled) { 1195 if (enabled == isEnabled()) { 1196 return; 1197 } 1198 1199 if (!enabled) { 1200 // Hide the soft input if the currently active TextView is disabled 1201 InputMethodManager imm = InputMethodManager.peekInstance(); 1202 if (imm != null && imm.isActive(this)) { 1203 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1204 } 1205 } 1206 super.setEnabled(enabled); 1207 prepareCursorControllers(); 1208 if (enabled) { 1209 // Make sure IME is updated with current editor info. 1210 InputMethodManager imm = InputMethodManager.peekInstance(); 1211 if (imm != null) imm.restartInput(this); 1212 } 1213 1214 // start or stop the cursor blinking as appropriate 1215 makeBlink(); 1216 } 1217 1218 /** 1219 * Sets the typeface and style in which the text should be displayed, 1220 * and turns on the fake bold and italic bits in the Paint if the 1221 * Typeface that you provided does not have all the bits in the 1222 * style that you specified. 1223 * 1224 * @attr ref android.R.styleable#TextView_typeface 1225 * @attr ref android.R.styleable#TextView_textStyle 1226 */ 1227 public void setTypeface(Typeface tf, int style) { 1228 if (style > 0) { 1229 if (tf == null) { 1230 tf = Typeface.defaultFromStyle(style); 1231 } else { 1232 tf = Typeface.create(tf, style); 1233 } 1234 1235 setTypeface(tf); 1236 // now compute what (if any) algorithmic styling is needed 1237 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1238 int need = style & ~typefaceStyle; 1239 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1240 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1241 } else { 1242 mTextPaint.setFakeBoldText(false); 1243 mTextPaint.setTextSkewX(0); 1244 setTypeface(tf); 1245 } 1246 } 1247 1248 /** 1249 * Subclasses override this to specify that they have a KeyListener 1250 * by default even if not specifically called for in the XML options. 1251 */ 1252 protected boolean getDefaultEditable() { 1253 return false; 1254 } 1255 1256 /** 1257 * Subclasses override this to specify a default movement method. 1258 */ 1259 protected MovementMethod getDefaultMovementMethod() { 1260 return null; 1261 } 1262 1263 /** 1264 * Return the text the TextView is displaying. If setText() was called with 1265 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1266 * the return value from this method to Spannable or Editable, respectively. 1267 * 1268 * Note: The content of the return value should not be modified. If you want 1269 * a modifiable one, you should make your own copy first. 1270 */ 1271 @ViewDebug.CapturedViewProperty 1272 public CharSequence getText() { 1273 return mText; 1274 } 1275 1276 /** 1277 * Returns the length, in characters, of the text managed by this TextView 1278 */ 1279 public int length() { 1280 return mText.length(); 1281 } 1282 1283 /** 1284 * Return the text the TextView is displaying as an Editable object. If 1285 * the text is not editable, null is returned. 1286 * 1287 * @see #getText 1288 */ 1289 public Editable getEditableText() { 1290 return (mText instanceof Editable) ? (Editable)mText : null; 1291 } 1292 1293 /** 1294 * @return the height of one standard line in pixels. Note that markup 1295 * within the text can cause individual lines to be taller or shorter 1296 * than this height, and the layout may contain additional first- 1297 * or last-line padding. 1298 */ 1299 public int getLineHeight() { 1300 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1301 } 1302 1303 /** 1304 * @return the Layout that is currently being used to display the text. 1305 * This can be null if the text or width has recently changes. 1306 */ 1307 public final Layout getLayout() { 1308 return mLayout; 1309 } 1310 1311 /** 1312 * @return the current key listener for this TextView. 1313 * This will frequently be null for non-EditText TextViews. 1314 */ 1315 public final KeyListener getKeyListener() { 1316 return mInput; 1317 } 1318 1319 /** 1320 * Sets the key listener to be used with this TextView. This can be null 1321 * to disallow user input. Note that this method has significant and 1322 * subtle interactions with soft keyboards and other input method: 1323 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1324 * for important details. Calling this method will replace the current 1325 * content type of the text view with the content type returned by the 1326 * key listener. 1327 * <p> 1328 * Be warned that if you want a TextView with a key listener or movement 1329 * method not to be focusable, or if you want a TextView without a 1330 * key listener or movement method to be focusable, you must call 1331 * {@link #setFocusable} again after calling this to get the focusability 1332 * back the way you want it. 1333 * 1334 * @attr ref android.R.styleable#TextView_numeric 1335 * @attr ref android.R.styleable#TextView_digits 1336 * @attr ref android.R.styleable#TextView_phoneNumber 1337 * @attr ref android.R.styleable#TextView_inputMethod 1338 * @attr ref android.R.styleable#TextView_capitalize 1339 * @attr ref android.R.styleable#TextView_autoText 1340 */ 1341 public void setKeyListener(KeyListener input) { 1342 setKeyListenerOnly(input); 1343 fixFocusableAndClickableSettings(); 1344 1345 if (input != null) { 1346 try { 1347 mInputType = mInput.getInputType(); 1348 } catch (IncompatibleClassChangeError e) { 1349 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1350 } 1351 // Change inputType, without affecting transformation. 1352 // No need to applySingleLine since mSingleLine is unchanged. 1353 setInputTypeSingleLine(mSingleLine); 1354 } else { 1355 mInputType = EditorInfo.TYPE_NULL; 1356 } 1357 1358 InputMethodManager imm = InputMethodManager.peekInstance(); 1359 if (imm != null) imm.restartInput(this); 1360 } 1361 1362 private void setKeyListenerOnly(KeyListener input) { 1363 mInput = input; 1364 if (mInput != null && !(mText instanceof Editable)) 1365 setText(mText); 1366 1367 setFilters((Editable) mText, mFilters); 1368 } 1369 1370 /** 1371 * @return the movement method being used for this TextView. 1372 * This will frequently be null for non-EditText TextViews. 1373 */ 1374 public final MovementMethod getMovementMethod() { 1375 return mMovement; 1376 } 1377 1378 /** 1379 * Sets the movement method (arrow key handler) to be used for 1380 * this TextView. This can be null to disallow using the arrow keys 1381 * to move the cursor or scroll the view. 1382 * <p> 1383 * Be warned that if you want a TextView with a key listener or movement 1384 * method not to be focusable, or if you want a TextView without a 1385 * key listener or movement method to be focusable, you must call 1386 * {@link #setFocusable} again after calling this to get the focusability 1387 * back the way you want it. 1388 */ 1389 public final void setMovementMethod(MovementMethod movement) { 1390 mMovement = movement; 1391 1392 if (mMovement != null && !(mText instanceof Spannable)) 1393 setText(mText); 1394 1395 fixFocusableAndClickableSettings(); 1396 1397 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1398 prepareCursorControllers(); 1399 } 1400 1401 private void fixFocusableAndClickableSettings() { 1402 if ((mMovement != null) || mInput != null) { 1403 setFocusable(true); 1404 setClickable(true); 1405 setLongClickable(true); 1406 } else { 1407 setFocusable(false); 1408 setClickable(false); 1409 setLongClickable(false); 1410 } 1411 } 1412 1413 /** 1414 * @return the current transformation method for this TextView. 1415 * This will frequently be null except for single-line and password 1416 * fields. 1417 */ 1418 public final TransformationMethod getTransformationMethod() { 1419 return mTransformation; 1420 } 1421 1422 /** 1423 * Sets the transformation that is applied to the text that this 1424 * TextView is displaying. 1425 * 1426 * @attr ref android.R.styleable#TextView_password 1427 * @attr ref android.R.styleable#TextView_singleLine 1428 */ 1429 public final void setTransformationMethod(TransformationMethod method) { 1430 if (method == mTransformation) { 1431 // Avoid the setText() below if the transformation is 1432 // the same. 1433 return; 1434 } 1435 if (mTransformation != null) { 1436 if (mText instanceof Spannable) { 1437 ((Spannable) mText).removeSpan(mTransformation); 1438 } 1439 } 1440 1441 mTransformation = method; 1442 1443 if (method instanceof TransformationMethod2) { 1444 TransformationMethod2 method2 = (TransformationMethod2) method; 1445 mAllowTransformationLengthChange = !mTextIsSelectable && !(mText instanceof Editable); 1446 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 1447 } else { 1448 mAllowTransformationLengthChange = false; 1449 } 1450 1451 setText(mText); 1452 } 1453 1454 /** 1455 * Returns the top padding of the view, plus space for the top 1456 * Drawable if any. 1457 */ 1458 public int getCompoundPaddingTop() { 1459 final Drawables dr = mDrawables; 1460 if (dr == null || dr.mDrawableTop == null) { 1461 return mPaddingTop; 1462 } else { 1463 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1464 } 1465 } 1466 1467 /** 1468 * Returns the bottom padding of the view, plus space for the bottom 1469 * Drawable if any. 1470 */ 1471 public int getCompoundPaddingBottom() { 1472 final Drawables dr = mDrawables; 1473 if (dr == null || dr.mDrawableBottom == null) { 1474 return mPaddingBottom; 1475 } else { 1476 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1477 } 1478 } 1479 1480 /** 1481 * Returns the left padding of the view, plus space for the left 1482 * Drawable if any. 1483 */ 1484 public int getCompoundPaddingLeft() { 1485 final Drawables dr = mDrawables; 1486 if (dr == null || dr.mDrawableLeft == null) { 1487 return mPaddingLeft; 1488 } else { 1489 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1490 } 1491 } 1492 1493 /** 1494 * Returns the right padding of the view, plus space for the right 1495 * Drawable if any. 1496 */ 1497 public int getCompoundPaddingRight() { 1498 final Drawables dr = mDrawables; 1499 if (dr == null || dr.mDrawableRight == null) { 1500 return mPaddingRight; 1501 } else { 1502 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1503 } 1504 } 1505 1506 /** 1507 * Returns the start padding of the view, plus space for the start 1508 * Drawable if any. 1509 * 1510 * @hide 1511 */ 1512 public int getCompoundPaddingStart() { 1513 resolveDrawables(); 1514 switch(getResolvedLayoutDirection()) { 1515 default: 1516 case LAYOUT_DIRECTION_LTR: 1517 return getCompoundPaddingLeft(); 1518 case LAYOUT_DIRECTION_RTL: 1519 return getCompoundPaddingRight(); 1520 } 1521 } 1522 1523 /** 1524 * Returns the end padding of the view, plus space for the end 1525 * Drawable if any. 1526 * 1527 * @hide 1528 */ 1529 public int getCompoundPaddingEnd() { 1530 resolveDrawables(); 1531 switch(getResolvedLayoutDirection()) { 1532 default: 1533 case LAYOUT_DIRECTION_LTR: 1534 return getCompoundPaddingRight(); 1535 case LAYOUT_DIRECTION_RTL: 1536 return getCompoundPaddingLeft(); 1537 } 1538 } 1539 1540 /** 1541 * Returns the extended top padding of the view, including both the 1542 * top Drawable if any and any extra space to keep more than maxLines 1543 * of text from showing. It is only valid to call this after measuring. 1544 */ 1545 public int getExtendedPaddingTop() { 1546 if (mMaxMode != LINES) { 1547 return getCompoundPaddingTop(); 1548 } 1549 1550 if (mLayout.getLineCount() <= mMaximum) { 1551 return getCompoundPaddingTop(); 1552 } 1553 1554 int top = getCompoundPaddingTop(); 1555 int bottom = getCompoundPaddingBottom(); 1556 int viewht = getHeight() - top - bottom; 1557 int layoutht = mLayout.getLineTop(mMaximum); 1558 1559 if (layoutht >= viewht) { 1560 return top; 1561 } 1562 1563 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1564 if (gravity == Gravity.TOP) { 1565 return top; 1566 } else if (gravity == Gravity.BOTTOM) { 1567 return top + viewht - layoutht; 1568 } else { // (gravity == Gravity.CENTER_VERTICAL) 1569 return top + (viewht - layoutht) / 2; 1570 } 1571 } 1572 1573 /** 1574 * Returns the extended bottom padding of the view, including both the 1575 * bottom Drawable if any and any extra space to keep more than maxLines 1576 * of text from showing. It is only valid to call this after measuring. 1577 */ 1578 public int getExtendedPaddingBottom() { 1579 if (mMaxMode != LINES) { 1580 return getCompoundPaddingBottom(); 1581 } 1582 1583 if (mLayout.getLineCount() <= mMaximum) { 1584 return getCompoundPaddingBottom(); 1585 } 1586 1587 int top = getCompoundPaddingTop(); 1588 int bottom = getCompoundPaddingBottom(); 1589 int viewht = getHeight() - top - bottom; 1590 int layoutht = mLayout.getLineTop(mMaximum); 1591 1592 if (layoutht >= viewht) { 1593 return bottom; 1594 } 1595 1596 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1597 if (gravity == Gravity.TOP) { 1598 return bottom + viewht - layoutht; 1599 } else if (gravity == Gravity.BOTTOM) { 1600 return bottom; 1601 } else { // (gravity == Gravity.CENTER_VERTICAL) 1602 return bottom + (viewht - layoutht) / 2; 1603 } 1604 } 1605 1606 /** 1607 * Returns the total left padding of the view, including the left 1608 * Drawable if any. 1609 */ 1610 public int getTotalPaddingLeft() { 1611 return getCompoundPaddingLeft(); 1612 } 1613 1614 /** 1615 * Returns the total right padding of the view, including the right 1616 * Drawable if any. 1617 */ 1618 public int getTotalPaddingRight() { 1619 return getCompoundPaddingRight(); 1620 } 1621 1622 /** 1623 * Returns the total start padding of the view, including the start 1624 * Drawable if any. 1625 * 1626 * @hide 1627 */ 1628 public int getTotalPaddingStart() { 1629 return getCompoundPaddingStart(); 1630 } 1631 1632 /** 1633 * Returns the total end padding of the view, including the end 1634 * Drawable if any. 1635 * 1636 * @hide 1637 */ 1638 public int getTotalPaddingEnd() { 1639 return getCompoundPaddingEnd(); 1640 } 1641 1642 /** 1643 * Returns the total top padding of the view, including the top 1644 * Drawable if any, the extra space to keep more than maxLines 1645 * from showing, and the vertical offset for gravity, if any. 1646 */ 1647 public int getTotalPaddingTop() { 1648 return getExtendedPaddingTop() + getVerticalOffset(true); 1649 } 1650 1651 /** 1652 * Returns the total bottom padding of the view, including the bottom 1653 * Drawable if any, the extra space to keep more than maxLines 1654 * from showing, and the vertical offset for gravity, if any. 1655 */ 1656 public int getTotalPaddingBottom() { 1657 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1658 } 1659 1660 /** 1661 * Sets the Drawables (if any) to appear to the left of, above, 1662 * to the right of, and below the text. Use null if you do not 1663 * want a Drawable there. The Drawables must already have had 1664 * {@link Drawable#setBounds} called. 1665 * 1666 * @attr ref android.R.styleable#TextView_drawableLeft 1667 * @attr ref android.R.styleable#TextView_drawableTop 1668 * @attr ref android.R.styleable#TextView_drawableRight 1669 * @attr ref android.R.styleable#TextView_drawableBottom 1670 */ 1671 public void setCompoundDrawables(Drawable left, Drawable top, 1672 Drawable right, Drawable bottom) { 1673 Drawables dr = mDrawables; 1674 1675 final boolean drawables = left != null || top != null 1676 || right != null || bottom != null; 1677 1678 if (!drawables) { 1679 // Clearing drawables... can we free the data structure? 1680 if (dr != null) { 1681 if (dr.mDrawablePadding == 0) { 1682 mDrawables = null; 1683 } else { 1684 // We need to retain the last set padding, so just clear 1685 // out all of the fields in the existing structure. 1686 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1687 dr.mDrawableLeft = null; 1688 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1689 dr.mDrawableTop = null; 1690 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1691 dr.mDrawableRight = null; 1692 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1693 dr.mDrawableBottom = null; 1694 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1695 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1696 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1697 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1698 } 1699 } 1700 } else { 1701 if (dr == null) { 1702 mDrawables = dr = new Drawables(); 1703 } 1704 1705 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1706 dr.mDrawableLeft.setCallback(null); 1707 } 1708 dr.mDrawableLeft = left; 1709 1710 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1711 dr.mDrawableTop.setCallback(null); 1712 } 1713 dr.mDrawableTop = top; 1714 1715 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1716 dr.mDrawableRight.setCallback(null); 1717 } 1718 dr.mDrawableRight = right; 1719 1720 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1721 dr.mDrawableBottom.setCallback(null); 1722 } 1723 dr.mDrawableBottom = bottom; 1724 1725 final Rect compoundRect = dr.mCompoundRect; 1726 int[] state; 1727 1728 state = getDrawableState(); 1729 1730 if (left != null) { 1731 left.setState(state); 1732 left.copyBounds(compoundRect); 1733 left.setCallback(this); 1734 dr.mDrawableSizeLeft = compoundRect.width(); 1735 dr.mDrawableHeightLeft = compoundRect.height(); 1736 } else { 1737 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1738 } 1739 1740 if (right != null) { 1741 right.setState(state); 1742 right.copyBounds(compoundRect); 1743 right.setCallback(this); 1744 dr.mDrawableSizeRight = compoundRect.width(); 1745 dr.mDrawableHeightRight = compoundRect.height(); 1746 } else { 1747 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1748 } 1749 1750 if (top != null) { 1751 top.setState(state); 1752 top.copyBounds(compoundRect); 1753 top.setCallback(this); 1754 dr.mDrawableSizeTop = compoundRect.height(); 1755 dr.mDrawableWidthTop = compoundRect.width(); 1756 } else { 1757 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1758 } 1759 1760 if (bottom != null) { 1761 bottom.setState(state); 1762 bottom.copyBounds(compoundRect); 1763 bottom.setCallback(this); 1764 dr.mDrawableSizeBottom = compoundRect.height(); 1765 dr.mDrawableWidthBottom = compoundRect.width(); 1766 } else { 1767 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1768 } 1769 } 1770 1771 invalidate(); 1772 requestLayout(); 1773 } 1774 1775 /** 1776 * Sets the Drawables (if any) to appear to the left of, above, 1777 * to the right of, and below the text. Use 0 if you do not 1778 * want a Drawable there. The Drawables' bounds will be set to 1779 * their intrinsic bounds. 1780 * 1781 * @param left Resource identifier of the left Drawable. 1782 * @param top Resource identifier of the top Drawable. 1783 * @param right Resource identifier of the right Drawable. 1784 * @param bottom Resource identifier of the bottom Drawable. 1785 * 1786 * @attr ref android.R.styleable#TextView_drawableLeft 1787 * @attr ref android.R.styleable#TextView_drawableTop 1788 * @attr ref android.R.styleable#TextView_drawableRight 1789 * @attr ref android.R.styleable#TextView_drawableBottom 1790 */ 1791 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1792 final Resources resources = getContext().getResources(); 1793 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1794 top != 0 ? resources.getDrawable(top) : null, 1795 right != 0 ? resources.getDrawable(right) : null, 1796 bottom != 0 ? resources.getDrawable(bottom) : null); 1797 } 1798 1799 /** 1800 * Sets the Drawables (if any) to appear to the left of, above, 1801 * to the right of, and below the text. Use null if you do not 1802 * want a Drawable there. The Drawables' bounds will be set to 1803 * their intrinsic bounds. 1804 * 1805 * @attr ref android.R.styleable#TextView_drawableLeft 1806 * @attr ref android.R.styleable#TextView_drawableTop 1807 * @attr ref android.R.styleable#TextView_drawableRight 1808 * @attr ref android.R.styleable#TextView_drawableBottom 1809 */ 1810 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1811 Drawable right, Drawable bottom) { 1812 1813 if (left != null) { 1814 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1815 } 1816 if (right != null) { 1817 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1818 } 1819 if (top != null) { 1820 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1821 } 1822 if (bottom != null) { 1823 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1824 } 1825 setCompoundDrawables(left, top, right, bottom); 1826 } 1827 1828 /** 1829 * Sets the Drawables (if any) to appear to the start of, above, 1830 * to the end of, and below the text. Use null if you do not 1831 * want a Drawable there. The Drawables must already have had 1832 * {@link Drawable#setBounds} called. 1833 * 1834 * @attr ref android.R.styleable#TextView_drawableStart 1835 * @attr ref android.R.styleable#TextView_drawableTop 1836 * @attr ref android.R.styleable#TextView_drawableEnd 1837 * @attr ref android.R.styleable#TextView_drawableBottom 1838 * 1839 * @hide 1840 */ 1841 public void setCompoundDrawablesRelative(Drawable start, Drawable top, 1842 Drawable end, Drawable bottom) { 1843 Drawables dr = mDrawables; 1844 1845 final boolean drawables = start != null || top != null 1846 || end != null || bottom != null; 1847 1848 if (!drawables) { 1849 // Clearing drawables... can we free the data structure? 1850 if (dr != null) { 1851 if (dr.mDrawablePadding == 0) { 1852 mDrawables = null; 1853 } else { 1854 // We need to retain the last set padding, so just clear 1855 // out all of the fields in the existing structure. 1856 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 1857 dr.mDrawableStart = null; 1858 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1859 dr.mDrawableTop = null; 1860 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 1861 dr.mDrawableEnd = null; 1862 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1863 dr.mDrawableBottom = null; 1864 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1865 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1866 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1867 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1868 } 1869 } 1870 } else { 1871 if (dr == null) { 1872 mDrawables = dr = new Drawables(); 1873 } 1874 1875 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 1876 dr.mDrawableStart.setCallback(null); 1877 } 1878 dr.mDrawableStart = start; 1879 1880 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1881 dr.mDrawableTop.setCallback(null); 1882 } 1883 dr.mDrawableTop = top; 1884 1885 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 1886 dr.mDrawableEnd.setCallback(null); 1887 } 1888 dr.mDrawableEnd = end; 1889 1890 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1891 dr.mDrawableBottom.setCallback(null); 1892 } 1893 dr.mDrawableBottom = bottom; 1894 1895 final Rect compoundRect = dr.mCompoundRect; 1896 int[] state; 1897 1898 state = getDrawableState(); 1899 1900 if (start != null) { 1901 start.setState(state); 1902 start.copyBounds(compoundRect); 1903 start.setCallback(this); 1904 dr.mDrawableSizeStart = compoundRect.width(); 1905 dr.mDrawableHeightStart = compoundRect.height(); 1906 } else { 1907 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1908 } 1909 1910 if (end != null) { 1911 end.setState(state); 1912 end.copyBounds(compoundRect); 1913 end.setCallback(this); 1914 dr.mDrawableSizeEnd = compoundRect.width(); 1915 dr.mDrawableHeightEnd = compoundRect.height(); 1916 } else { 1917 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1918 } 1919 1920 if (top != null) { 1921 top.setState(state); 1922 top.copyBounds(compoundRect); 1923 top.setCallback(this); 1924 dr.mDrawableSizeTop = compoundRect.height(); 1925 dr.mDrawableWidthTop = compoundRect.width(); 1926 } else { 1927 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1928 } 1929 1930 if (bottom != null) { 1931 bottom.setState(state); 1932 bottom.copyBounds(compoundRect); 1933 bottom.setCallback(this); 1934 dr.mDrawableSizeBottom = compoundRect.height(); 1935 dr.mDrawableWidthBottom = compoundRect.width(); 1936 } else { 1937 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1938 } 1939 } 1940 1941 resolveDrawables(); 1942 invalidate(); 1943 requestLayout(); 1944 } 1945 1946 /** 1947 * Sets the Drawables (if any) to appear to the start of, above, 1948 * to the end of, and below the text. Use 0 if you do not 1949 * want a Drawable there. The Drawables' bounds will be set to 1950 * their intrinsic bounds. 1951 * 1952 * @param start Resource identifier of the start Drawable. 1953 * @param top Resource identifier of the top Drawable. 1954 * @param end Resource identifier of the end Drawable. 1955 * @param bottom Resource identifier of the bottom Drawable. 1956 * 1957 * @attr ref android.R.styleable#TextView_drawableStart 1958 * @attr ref android.R.styleable#TextView_drawableTop 1959 * @attr ref android.R.styleable#TextView_drawableEnd 1960 * @attr ref android.R.styleable#TextView_drawableBottom 1961 * 1962 * @hide 1963 */ 1964 public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end, 1965 int bottom) { 1966 resetResolvedDrawables(); 1967 final Resources resources = getContext().getResources(); 1968 setCompoundDrawablesRelativeWithIntrinsicBounds( 1969 start != 0 ? resources.getDrawable(start) : null, 1970 top != 0 ? resources.getDrawable(top) : null, 1971 end != 0 ? resources.getDrawable(end) : null, 1972 bottom != 0 ? resources.getDrawable(bottom) : null); 1973 } 1974 1975 /** 1976 * Sets the Drawables (if any) to appear to the start of, above, 1977 * to the end of, and below the text. Use null if you do not 1978 * want a Drawable there. The Drawables' bounds will be set to 1979 * their intrinsic bounds. 1980 * 1981 * @attr ref android.R.styleable#TextView_drawableStart 1982 * @attr ref android.R.styleable#TextView_drawableTop 1983 * @attr ref android.R.styleable#TextView_drawableEnd 1984 * @attr ref android.R.styleable#TextView_drawableBottom 1985 * 1986 * @hide 1987 */ 1988 public void setCompoundDrawablesRelativeWithIntrinsicBounds(Drawable start, Drawable top, 1989 Drawable end, Drawable bottom) { 1990 1991 resetResolvedDrawables(); 1992 if (start != null) { 1993 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1994 } 1995 if (end != null) { 1996 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1997 } 1998 if (top != null) { 1999 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2000 } 2001 if (bottom != null) { 2002 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2003 } 2004 setCompoundDrawablesRelative(start, top, end, bottom); 2005 } 2006 2007 /** 2008 * Returns drawables for the left, top, right, and bottom borders. 2009 */ 2010 public Drawable[] getCompoundDrawables() { 2011 final Drawables dr = mDrawables; 2012 if (dr != null) { 2013 return new Drawable[] { 2014 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 2015 }; 2016 } else { 2017 return new Drawable[] { null, null, null, null }; 2018 } 2019 } 2020 2021 /** 2022 * Returns drawables for the start, top, end, and bottom borders. 2023 * 2024 * @hide 2025 */ 2026 public Drawable[] getCompoundDrawablesRelative() { 2027 final Drawables dr = mDrawables; 2028 if (dr != null) { 2029 return new Drawable[] { 2030 dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom 2031 }; 2032 } else { 2033 return new Drawable[] { null, null, null, null }; 2034 } 2035 } 2036 2037 /** 2038 * Sets the size of the padding between the compound drawables and 2039 * the text. 2040 * 2041 * @attr ref android.R.styleable#TextView_drawablePadding 2042 */ 2043 public void setCompoundDrawablePadding(int pad) { 2044 Drawables dr = mDrawables; 2045 if (pad == 0) { 2046 if (dr != null) { 2047 dr.mDrawablePadding = pad; 2048 } 2049 } else { 2050 if (dr == null) { 2051 mDrawables = dr = new Drawables(); 2052 } 2053 dr.mDrawablePadding = pad; 2054 } 2055 2056 invalidate(); 2057 requestLayout(); 2058 } 2059 2060 /** 2061 * Returns the padding between the compound drawables and the text. 2062 */ 2063 public int getCompoundDrawablePadding() { 2064 final Drawables dr = mDrawables; 2065 return dr != null ? dr.mDrawablePadding : 0; 2066 } 2067 2068 @Override 2069 public void setPadding(int left, int top, int right, int bottom) { 2070 if (left != mPaddingLeft || 2071 right != mPaddingRight || 2072 top != mPaddingTop || 2073 bottom != mPaddingBottom) { 2074 nullLayouts(); 2075 } 2076 2077 // the super call will requestLayout() 2078 super.setPadding(left, top, right, bottom); 2079 invalidate(); 2080 } 2081 2082 /** 2083 * Gets the autolink mask of the text. See {@link 2084 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2085 * possible values. 2086 * 2087 * @attr ref android.R.styleable#TextView_autoLink 2088 */ 2089 public final int getAutoLinkMask() { 2090 return mAutoLinkMask; 2091 } 2092 2093 /** 2094 * Sets the text color, size, style, hint color, and highlight color 2095 * from the specified TextAppearance resource. 2096 */ 2097 public void setTextAppearance(Context context, int resid) { 2098 TypedArray appearance = 2099 context.obtainStyledAttributes(resid, 2100 com.android.internal.R.styleable.TextAppearance); 2101 2102 int color; 2103 ColorStateList colors; 2104 int ts; 2105 2106 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 2107 if (color != 0) { 2108 setHighlightColor(color); 2109 } 2110 2111 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2112 TextAppearance_textColor); 2113 if (colors != null) { 2114 setTextColor(colors); 2115 } 2116 2117 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 2118 TextAppearance_textSize, 0); 2119 if (ts != 0) { 2120 setRawTextSize(ts); 2121 } 2122 2123 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2124 TextAppearance_textColorHint); 2125 if (colors != null) { 2126 setHintTextColor(colors); 2127 } 2128 2129 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2130 TextAppearance_textColorLink); 2131 if (colors != null) { 2132 setLinkTextColor(colors); 2133 } 2134 2135 int typefaceIndex, styleIndex; 2136 2137 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 2138 TextAppearance_typeface, -1); 2139 styleIndex = appearance.getInt(com.android.internal.R.styleable. 2140 TextAppearance_textStyle, -1); 2141 2142 setTypefaceByIndex(typefaceIndex, styleIndex); 2143 2144 if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps, 2145 false)) { 2146 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 2147 } 2148 2149 appearance.recycle(); 2150 } 2151 2152 /** 2153 * @return the size (in pixels) of the default text size in this TextView. 2154 */ 2155 public float getTextSize() { 2156 return mTextPaint.getTextSize(); 2157 } 2158 2159 /** 2160 * Set the default text size to the given value, interpreted as "scaled 2161 * pixel" units. This size is adjusted based on the current density and 2162 * user font size preference. 2163 * 2164 * @param size The scaled pixel size. 2165 * 2166 * @attr ref android.R.styleable#TextView_textSize 2167 */ 2168 @android.view.RemotableViewMethod 2169 public void setTextSize(float size) { 2170 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 2171 } 2172 2173 /** 2174 * Set the default text size to a given unit and value. See {@link 2175 * TypedValue} for the possible dimension units. 2176 * 2177 * @param unit The desired dimension unit. 2178 * @param size The desired size in the given units. 2179 * 2180 * @attr ref android.R.styleable#TextView_textSize 2181 */ 2182 public void setTextSize(int unit, float size) { 2183 Context c = getContext(); 2184 Resources r; 2185 2186 if (c == null) 2187 r = Resources.getSystem(); 2188 else 2189 r = c.getResources(); 2190 2191 setRawTextSize(TypedValue.applyDimension( 2192 unit, size, r.getDisplayMetrics())); 2193 } 2194 2195 private void setRawTextSize(float size) { 2196 if (size != mTextPaint.getTextSize()) { 2197 mTextPaint.setTextSize(size); 2198 2199 if (mLayout != null) { 2200 nullLayouts(); 2201 requestLayout(); 2202 invalidate(); 2203 } 2204 } 2205 } 2206 2207 /** 2208 * @return the extent by which text is currently being stretched 2209 * horizontally. This will usually be 1. 2210 */ 2211 public float getTextScaleX() { 2212 return mTextPaint.getTextScaleX(); 2213 } 2214 2215 /** 2216 * Sets the extent by which text should be stretched horizontally. 2217 * 2218 * @attr ref android.R.styleable#TextView_textScaleX 2219 */ 2220 @android.view.RemotableViewMethod 2221 public void setTextScaleX(float size) { 2222 if (size != mTextPaint.getTextScaleX()) { 2223 mUserSetTextScaleX = true; 2224 mTextPaint.setTextScaleX(size); 2225 2226 if (mLayout != null) { 2227 nullLayouts(); 2228 requestLayout(); 2229 invalidate(); 2230 } 2231 } 2232 } 2233 2234 /** 2235 * Sets the typeface and style in which the text should be displayed. 2236 * Note that not all Typeface families actually have bold and italic 2237 * variants, so you may need to use 2238 * {@link #setTypeface(Typeface, int)} to get the appearance 2239 * that you actually want. 2240 * 2241 * @attr ref android.R.styleable#TextView_typeface 2242 * @attr ref android.R.styleable#TextView_textStyle 2243 */ 2244 public void setTypeface(Typeface tf) { 2245 if (mTextPaint.getTypeface() != tf) { 2246 mTextPaint.setTypeface(tf); 2247 2248 if (mLayout != null) { 2249 nullLayouts(); 2250 requestLayout(); 2251 invalidate(); 2252 } 2253 } 2254 } 2255 2256 /** 2257 * @return the current typeface and style in which the text is being 2258 * displayed. 2259 */ 2260 public Typeface getTypeface() { 2261 return mTextPaint.getTypeface(); 2262 } 2263 2264 /** 2265 * Sets the text color for all the states (normal, selected, 2266 * focused) to be this color. 2267 * 2268 * @attr ref android.R.styleable#TextView_textColor 2269 */ 2270 @android.view.RemotableViewMethod 2271 public void setTextColor(int color) { 2272 mTextColor = ColorStateList.valueOf(color); 2273 updateTextColors(); 2274 } 2275 2276 /** 2277 * Sets the text color. 2278 * 2279 * @attr ref android.R.styleable#TextView_textColor 2280 */ 2281 public void setTextColor(ColorStateList colors) { 2282 if (colors == null) { 2283 throw new NullPointerException(); 2284 } 2285 2286 mTextColor = colors; 2287 updateTextColors(); 2288 } 2289 2290 /** 2291 * Return the set of text colors. 2292 * 2293 * @return Returns the set of text colors. 2294 */ 2295 public final ColorStateList getTextColors() { 2296 return mTextColor; 2297 } 2298 2299 /** 2300 * <p>Return the current color selected for normal text.</p> 2301 * 2302 * @return Returns the current text color. 2303 */ 2304 public final int getCurrentTextColor() { 2305 return mCurTextColor; 2306 } 2307 2308 /** 2309 * Sets the color used to display the selection highlight. 2310 * 2311 * @attr ref android.R.styleable#TextView_textColorHighlight 2312 */ 2313 @android.view.RemotableViewMethod 2314 public void setHighlightColor(int color) { 2315 if (mHighlightColor != color) { 2316 mHighlightColor = color; 2317 invalidate(); 2318 } 2319 } 2320 2321 /** 2322 * Gives the text a shadow of the specified radius and color, the specified 2323 * distance from its normal position. 2324 * 2325 * @attr ref android.R.styleable#TextView_shadowColor 2326 * @attr ref android.R.styleable#TextView_shadowDx 2327 * @attr ref android.R.styleable#TextView_shadowDy 2328 * @attr ref android.R.styleable#TextView_shadowRadius 2329 */ 2330 public void setShadowLayer(float radius, float dx, float dy, int color) { 2331 mTextPaint.setShadowLayer(radius, dx, dy, color); 2332 2333 mShadowRadius = radius; 2334 mShadowDx = dx; 2335 mShadowDy = dy; 2336 2337 invalidate(); 2338 } 2339 2340 /** 2341 * @return the base paint used for the text. Please use this only to 2342 * consult the Paint's properties and not to change them. 2343 */ 2344 public TextPaint getPaint() { 2345 return mTextPaint; 2346 } 2347 2348 /** 2349 * Sets the autolink mask of the text. See {@link 2350 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2351 * possible values. 2352 * 2353 * @attr ref android.R.styleable#TextView_autoLink 2354 */ 2355 @android.view.RemotableViewMethod 2356 public final void setAutoLinkMask(int mask) { 2357 mAutoLinkMask = mask; 2358 } 2359 2360 /** 2361 * Sets whether the movement method will automatically be set to 2362 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2363 * set to nonzero and links are detected in {@link #setText}. 2364 * The default is true. 2365 * 2366 * @attr ref android.R.styleable#TextView_linksClickable 2367 */ 2368 @android.view.RemotableViewMethod 2369 public final void setLinksClickable(boolean whether) { 2370 mLinksClickable = whether; 2371 } 2372 2373 /** 2374 * Returns whether the movement method will automatically be set to 2375 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2376 * set to nonzero and links are detected in {@link #setText}. 2377 * The default is true. 2378 * 2379 * @attr ref android.R.styleable#TextView_linksClickable 2380 */ 2381 public final boolean getLinksClickable() { 2382 return mLinksClickable; 2383 } 2384 2385 /** 2386 * Sets whether the soft input method will be made visible when this 2387 * TextView gets focused. The default is true. 2388 * 2389 * @attr ref android.R.styleable#TextView_softInputShownOnFocus 2390 * @hide 2391 */ 2392 @android.view.RemotableViewMethod 2393 public final void setSoftInputShownOnFocus(boolean show) { 2394 mSoftInputShownOnFocus = show; 2395 } 2396 2397 /** 2398 * Returns whether the soft input method will be made visible when this 2399 * TextView gets focused. The default is true. 2400 * 2401 * @attr ref android.R.styleable#TextView_softInputShownOnFocus 2402 * @hide 2403 */ 2404 public final boolean getSoftInputShownOnFocus() { 2405 return mSoftInputShownOnFocus; 2406 } 2407 2408 /** 2409 * Returns the list of URLSpans attached to the text 2410 * (by {@link Linkify} or otherwise) if any. You can call 2411 * {@link URLSpan#getURL} on them to find where they link to 2412 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2413 * to find the region of the text they are attached to. 2414 */ 2415 public URLSpan[] getUrls() { 2416 if (mText instanceof Spanned) { 2417 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2418 } else { 2419 return new URLSpan[0]; 2420 } 2421 } 2422 2423 /** 2424 * Sets the color of the hint text. 2425 * 2426 * @attr ref android.R.styleable#TextView_textColorHint 2427 */ 2428 @android.view.RemotableViewMethod 2429 public final void setHintTextColor(int color) { 2430 mHintTextColor = ColorStateList.valueOf(color); 2431 updateTextColors(); 2432 } 2433 2434 /** 2435 * Sets the color of the hint text. 2436 * 2437 * @attr ref android.R.styleable#TextView_textColorHint 2438 */ 2439 public final void setHintTextColor(ColorStateList colors) { 2440 mHintTextColor = colors; 2441 updateTextColors(); 2442 } 2443 2444 /** 2445 * <p>Return the color used to paint the hint text.</p> 2446 * 2447 * @return Returns the list of hint text colors. 2448 */ 2449 public final ColorStateList getHintTextColors() { 2450 return mHintTextColor; 2451 } 2452 2453 /** 2454 * <p>Return the current color selected to paint the hint text.</p> 2455 * 2456 * @return Returns the current hint text color. 2457 */ 2458 public final int getCurrentHintTextColor() { 2459 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2460 } 2461 2462 /** 2463 * Sets the color of links in the text. 2464 * 2465 * @attr ref android.R.styleable#TextView_textColorLink 2466 */ 2467 @android.view.RemotableViewMethod 2468 public final void setLinkTextColor(int color) { 2469 mLinkTextColor = ColorStateList.valueOf(color); 2470 updateTextColors(); 2471 } 2472 2473 /** 2474 * Sets the color of links in the text. 2475 * 2476 * @attr ref android.R.styleable#TextView_textColorLink 2477 */ 2478 public final void setLinkTextColor(ColorStateList colors) { 2479 mLinkTextColor = colors; 2480 updateTextColors(); 2481 } 2482 2483 /** 2484 * <p>Returns the color used to paint links in the text.</p> 2485 * 2486 * @return Returns the list of link text colors. 2487 */ 2488 public final ColorStateList getLinkTextColors() { 2489 return mLinkTextColor; 2490 } 2491 2492 /** 2493 * Sets the horizontal alignment of the text and the 2494 * vertical gravity that will be used when there is extra space 2495 * in the TextView beyond what is required for the text itself. 2496 * 2497 * @see android.view.Gravity 2498 * @attr ref android.R.styleable#TextView_gravity 2499 */ 2500 public void setGravity(int gravity) { 2501 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2502 gravity |= Gravity.START; 2503 } 2504 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2505 gravity |= Gravity.TOP; 2506 } 2507 2508 boolean newLayout = false; 2509 2510 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 2511 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 2512 newLayout = true; 2513 } 2514 2515 if (gravity != mGravity) { 2516 invalidate(); 2517 mLayoutAlignment = null; 2518 } 2519 2520 mGravity = gravity; 2521 2522 if (mLayout != null && newLayout) { 2523 // XXX this is heavy-handed because no actual content changes. 2524 int want = mLayout.getWidth(); 2525 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2526 2527 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2528 mRight - mLeft - getCompoundPaddingLeft() - 2529 getCompoundPaddingRight(), true); 2530 } 2531 } 2532 2533 /** 2534 * Returns the horizontal and vertical alignment of this TextView. 2535 * 2536 * @see android.view.Gravity 2537 * @attr ref android.R.styleable#TextView_gravity 2538 */ 2539 public int getGravity() { 2540 return mGravity; 2541 } 2542 2543 /** 2544 * @return the flags on the Paint being used to display the text. 2545 * @see Paint#getFlags 2546 */ 2547 public int getPaintFlags() { 2548 return mTextPaint.getFlags(); 2549 } 2550 2551 /** 2552 * Sets flags on the Paint being used to display the text and 2553 * reflows the text if they are different from the old flags. 2554 * @see Paint#setFlags 2555 */ 2556 @android.view.RemotableViewMethod 2557 public void setPaintFlags(int flags) { 2558 if (mTextPaint.getFlags() != flags) { 2559 mTextPaint.setFlags(flags); 2560 2561 if (mLayout != null) { 2562 nullLayouts(); 2563 requestLayout(); 2564 invalidate(); 2565 } 2566 } 2567 } 2568 2569 /** 2570 * Sets whether the text should be allowed to be wider than the 2571 * View is. If false, it will be wrapped to the width of the View. 2572 * 2573 * @attr ref android.R.styleable#TextView_scrollHorizontally 2574 */ 2575 public void setHorizontallyScrolling(boolean whether) { 2576 if (mHorizontallyScrolling != whether) { 2577 mHorizontallyScrolling = whether; 2578 2579 if (mLayout != null) { 2580 nullLayouts(); 2581 requestLayout(); 2582 invalidate(); 2583 } 2584 } 2585 } 2586 2587 /** 2588 * Returns whether the text is allowed to be wider than the View is. 2589 * If false, the text will be wrapped to the width of the View. 2590 * 2591 * @attr ref android.R.styleable#TextView_scrollHorizontally 2592 * @hide 2593 */ 2594 public boolean getHorizontallyScrolling() { 2595 return mHorizontallyScrolling; 2596 } 2597 2598 /** 2599 * Makes the TextView at least this many lines tall. 2600 * 2601 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2602 * set this value to 1. 2603 * 2604 * @attr ref android.R.styleable#TextView_minLines 2605 */ 2606 @android.view.RemotableViewMethod 2607 public void setMinLines(int minlines) { 2608 mMinimum = minlines; 2609 mMinMode = LINES; 2610 2611 requestLayout(); 2612 invalidate(); 2613 } 2614 2615 /** 2616 * Makes the TextView at least this many pixels tall. 2617 * 2618 * Setting this value overrides any other (minimum) number of lines setting. 2619 * 2620 * @attr ref android.R.styleable#TextView_minHeight 2621 */ 2622 @android.view.RemotableViewMethod 2623 public void setMinHeight(int minHeight) { 2624 mMinimum = minHeight; 2625 mMinMode = PIXELS; 2626 2627 requestLayout(); 2628 invalidate(); 2629 } 2630 2631 /** 2632 * Makes the TextView at most this many lines tall. 2633 * 2634 * Setting this value overrides any other (maximum) height setting. 2635 * 2636 * @attr ref android.R.styleable#TextView_maxLines 2637 */ 2638 @android.view.RemotableViewMethod 2639 public void setMaxLines(int maxlines) { 2640 mMaximum = maxlines; 2641 mMaxMode = LINES; 2642 2643 requestLayout(); 2644 invalidate(); 2645 } 2646 2647 /** 2648 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2649 * {@link #setMaxLines(int)} method. 2650 * 2651 * Setting this value overrides any other (maximum) number of lines setting. 2652 * 2653 * @attr ref android.R.styleable#TextView_maxHeight 2654 */ 2655 @android.view.RemotableViewMethod 2656 public void setMaxHeight(int maxHeight) { 2657 mMaximum = maxHeight; 2658 mMaxMode = PIXELS; 2659 2660 requestLayout(); 2661 invalidate(); 2662 } 2663 2664 /** 2665 * Makes the TextView exactly this many lines tall. 2666 * 2667 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2668 * height setting. A single line TextView will set this value to 1. 2669 * 2670 * @attr ref android.R.styleable#TextView_lines 2671 */ 2672 @android.view.RemotableViewMethod 2673 public void setLines(int lines) { 2674 mMaximum = mMinimum = lines; 2675 mMaxMode = mMinMode = LINES; 2676 2677 requestLayout(); 2678 invalidate(); 2679 } 2680 2681 /** 2682 * Makes the TextView exactly this many pixels tall. 2683 * You could do the same thing by specifying this number in the 2684 * LayoutParams. 2685 * 2686 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2687 * height setting. 2688 * 2689 * @attr ref android.R.styleable#TextView_height 2690 */ 2691 @android.view.RemotableViewMethod 2692 public void setHeight(int pixels) { 2693 mMaximum = mMinimum = pixels; 2694 mMaxMode = mMinMode = PIXELS; 2695 2696 requestLayout(); 2697 invalidate(); 2698 } 2699 2700 /** 2701 * Makes the TextView at least this many ems wide 2702 * 2703 * @attr ref android.R.styleable#TextView_minEms 2704 */ 2705 @android.view.RemotableViewMethod 2706 public void setMinEms(int minems) { 2707 mMinWidth = minems; 2708 mMinWidthMode = EMS; 2709 2710 requestLayout(); 2711 invalidate(); 2712 } 2713 2714 /** 2715 * Makes the TextView at least this many pixels wide 2716 * 2717 * @attr ref android.R.styleable#TextView_minWidth 2718 */ 2719 @android.view.RemotableViewMethod 2720 public void setMinWidth(int minpixels) { 2721 mMinWidth = minpixels; 2722 mMinWidthMode = PIXELS; 2723 2724 requestLayout(); 2725 invalidate(); 2726 } 2727 2728 /** 2729 * Makes the TextView at most this many ems wide 2730 * 2731 * @attr ref android.R.styleable#TextView_maxEms 2732 */ 2733 @android.view.RemotableViewMethod 2734 public void setMaxEms(int maxems) { 2735 mMaxWidth = maxems; 2736 mMaxWidthMode = EMS; 2737 2738 requestLayout(); 2739 invalidate(); 2740 } 2741 2742 /** 2743 * Makes the TextView at most this many pixels wide 2744 * 2745 * @attr ref android.R.styleable#TextView_maxWidth 2746 */ 2747 @android.view.RemotableViewMethod 2748 public void setMaxWidth(int maxpixels) { 2749 mMaxWidth = maxpixels; 2750 mMaxWidthMode = PIXELS; 2751 2752 requestLayout(); 2753 invalidate(); 2754 } 2755 2756 /** 2757 * Makes the TextView exactly this many ems wide 2758 * 2759 * @attr ref android.R.styleable#TextView_ems 2760 */ 2761 @android.view.RemotableViewMethod 2762 public void setEms(int ems) { 2763 mMaxWidth = mMinWidth = ems; 2764 mMaxWidthMode = mMinWidthMode = EMS; 2765 2766 requestLayout(); 2767 invalidate(); 2768 } 2769 2770 /** 2771 * Makes the TextView exactly this many pixels wide. 2772 * You could do the same thing by specifying this number in the 2773 * LayoutParams. 2774 * 2775 * @attr ref android.R.styleable#TextView_width 2776 */ 2777 @android.view.RemotableViewMethod 2778 public void setWidth(int pixels) { 2779 mMaxWidth = mMinWidth = pixels; 2780 mMaxWidthMode = mMinWidthMode = PIXELS; 2781 2782 requestLayout(); 2783 invalidate(); 2784 } 2785 2786 2787 /** 2788 * Sets line spacing for this TextView. Each line will have its height 2789 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2790 * 2791 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2792 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2793 */ 2794 public void setLineSpacing(float add, float mult) { 2795 if (mSpacingAdd != add || mSpacingMult != mult) { 2796 mSpacingAdd = add; 2797 mSpacingMult = mult; 2798 2799 if (mLayout != null) { 2800 nullLayouts(); 2801 requestLayout(); 2802 invalidate(); 2803 } 2804 } 2805 } 2806 2807 /** 2808 * Convenience method: Append the specified text to the TextView's 2809 * display buffer, upgrading it to BufferType.EDITABLE if it was 2810 * not already editable. 2811 */ 2812 public final void append(CharSequence text) { 2813 append(text, 0, text.length()); 2814 } 2815 2816 /** 2817 * Convenience method: Append the specified text slice to the TextView's 2818 * display buffer, upgrading it to BufferType.EDITABLE if it was 2819 * not already editable. 2820 */ 2821 public void append(CharSequence text, int start, int end) { 2822 if (!(mText instanceof Editable)) { 2823 setText(mText, BufferType.EDITABLE); 2824 } 2825 2826 ((Editable) mText).append(text, start, end); 2827 } 2828 2829 private void updateTextColors() { 2830 boolean inval = false; 2831 int color = mTextColor.getColorForState(getDrawableState(), 0); 2832 if (color != mCurTextColor) { 2833 mCurTextColor = color; 2834 inval = true; 2835 } 2836 if (mLinkTextColor != null) { 2837 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2838 if (color != mTextPaint.linkColor) { 2839 mTextPaint.linkColor = color; 2840 inval = true; 2841 } 2842 } 2843 if (mHintTextColor != null) { 2844 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2845 if (color != mCurHintTextColor && mText.length() == 0) { 2846 mCurHintTextColor = color; 2847 inval = true; 2848 } 2849 } 2850 if (inval) { 2851 invalidate(); 2852 } 2853 } 2854 2855 @Override 2856 protected void drawableStateChanged() { 2857 super.drawableStateChanged(); 2858 if (mTextColor != null && mTextColor.isStateful() 2859 || (mHintTextColor != null && mHintTextColor.isStateful()) 2860 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2861 updateTextColors(); 2862 } 2863 2864 final Drawables dr = mDrawables; 2865 if (dr != null) { 2866 int[] state = getDrawableState(); 2867 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2868 dr.mDrawableTop.setState(state); 2869 } 2870 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2871 dr.mDrawableBottom.setState(state); 2872 } 2873 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2874 dr.mDrawableLeft.setState(state); 2875 } 2876 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2877 dr.mDrawableRight.setState(state); 2878 } 2879 if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) { 2880 dr.mDrawableStart.setState(state); 2881 } 2882 if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) { 2883 dr.mDrawableEnd.setState(state); 2884 } 2885 } 2886 } 2887 2888 /** 2889 * User interface state that is stored by TextView for implementing 2890 * {@link View#onSaveInstanceState}. 2891 */ 2892 public static class SavedState extends BaseSavedState { 2893 int selStart; 2894 int selEnd; 2895 CharSequence text; 2896 boolean frozenWithFocus; 2897 CharSequence error; 2898 2899 SavedState(Parcelable superState) { 2900 super(superState); 2901 } 2902 2903 @Override 2904 public void writeToParcel(Parcel out, int flags) { 2905 super.writeToParcel(out, flags); 2906 out.writeInt(selStart); 2907 out.writeInt(selEnd); 2908 out.writeInt(frozenWithFocus ? 1 : 0); 2909 TextUtils.writeToParcel(text, out, flags); 2910 2911 if (error == null) { 2912 out.writeInt(0); 2913 } else { 2914 out.writeInt(1); 2915 TextUtils.writeToParcel(error, out, flags); 2916 } 2917 } 2918 2919 @Override 2920 public String toString() { 2921 String str = "TextView.SavedState{" 2922 + Integer.toHexString(System.identityHashCode(this)) 2923 + " start=" + selStart + " end=" + selEnd; 2924 if (text != null) { 2925 str += " text=" + text; 2926 } 2927 return str + "}"; 2928 } 2929 2930 @SuppressWarnings("hiding") 2931 public static final Parcelable.Creator<SavedState> CREATOR 2932 = new Parcelable.Creator<SavedState>() { 2933 public SavedState createFromParcel(Parcel in) { 2934 return new SavedState(in); 2935 } 2936 2937 public SavedState[] newArray(int size) { 2938 return new SavedState[size]; 2939 } 2940 }; 2941 2942 private SavedState(Parcel in) { 2943 super(in); 2944 selStart = in.readInt(); 2945 selEnd = in.readInt(); 2946 frozenWithFocus = (in.readInt() != 0); 2947 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2948 2949 if (in.readInt() != 0) { 2950 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2951 } 2952 } 2953 } 2954 2955 @Override 2956 public Parcelable onSaveInstanceState() { 2957 Parcelable superState = super.onSaveInstanceState(); 2958 2959 // Save state if we are forced to 2960 boolean save = mFreezesText; 2961 int start = 0; 2962 int end = 0; 2963 2964 if (mText != null) { 2965 start = getSelectionStart(); 2966 end = getSelectionEnd(); 2967 if (start >= 0 || end >= 0) { 2968 // Or save state if there is a selection 2969 save = true; 2970 } 2971 } 2972 2973 if (save) { 2974 SavedState ss = new SavedState(superState); 2975 // XXX Should also save the current scroll position! 2976 ss.selStart = start; 2977 ss.selEnd = end; 2978 2979 if (mText instanceof Spanned) { 2980 /* 2981 * Calling setText() strips off any ChangeWatchers; 2982 * strip them now to avoid leaking references. 2983 * But do it to a copy so that if there are any 2984 * further changes to the text of this view, it 2985 * won't get into an inconsistent state. 2986 */ 2987 2988 Spannable sp = new SpannableString(mText); 2989 2990 for (ChangeWatcher cw : sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2991 sp.removeSpan(cw); 2992 } 2993 2994 removeMisspelledSpans(sp); 2995 sp.removeSpan(mSuggestionRangeSpan); 2996 2997 ss.text = sp; 2998 } else { 2999 ss.text = mText.toString(); 3000 } 3001 3002 if (isFocused() && start >= 0 && end >= 0) { 3003 ss.frozenWithFocus = true; 3004 } 3005 3006 ss.error = mError; 3007 3008 return ss; 3009 } 3010 3011 return superState; 3012 } 3013 3014 void removeMisspelledSpans(Spannable spannable) { 3015 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(), 3016 SuggestionSpan.class); 3017 for (int i = 0; i < suggestionSpans.length; i++) { 3018 int flags = suggestionSpans[i].getFlags(); 3019 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 3020 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 3021 spannable.removeSpan(suggestionSpans[i]); 3022 } 3023 } 3024 } 3025 3026 @Override 3027 public void onRestoreInstanceState(Parcelable state) { 3028 if (!(state instanceof SavedState)) { 3029 super.onRestoreInstanceState(state); 3030 return; 3031 } 3032 3033 SavedState ss = (SavedState)state; 3034 super.onRestoreInstanceState(ss.getSuperState()); 3035 3036 // XXX restore buffer type too, as well as lots of other stuff 3037 if (ss.text != null) { 3038 setText(ss.text); 3039 } 3040 3041 if (ss.selStart >= 0 && ss.selEnd >= 0) { 3042 if (mText instanceof Spannable) { 3043 int len = mText.length(); 3044 3045 if (ss.selStart > len || ss.selEnd > len) { 3046 String restored = ""; 3047 3048 if (ss.text != null) { 3049 restored = "(restored) "; 3050 } 3051 3052 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 3053 "/" + ss.selEnd + " out of range for " + restored + 3054 "text " + mText); 3055 } else { 3056 Selection.setSelection((Spannable) mText, ss.selStart, 3057 ss.selEnd); 3058 3059 if (ss.frozenWithFocus) { 3060 mFrozenWithFocus = true; 3061 } 3062 } 3063 } 3064 } 3065 3066 if (ss.error != null) { 3067 final CharSequence error = ss.error; 3068 // Display the error later, after the first layout pass 3069 post(new Runnable() { 3070 public void run() { 3071 setError(error); 3072 } 3073 }); 3074 } 3075 } 3076 3077 /** 3078 * Control whether this text view saves its entire text contents when 3079 * freezing to an icicle, in addition to dynamic state such as cursor 3080 * position. By default this is false, not saving the text. Set to true 3081 * if the text in the text view is not being saved somewhere else in 3082 * persistent storage (such as in a content provider) so that if the 3083 * view is later thawed the user will not lose their data. 3084 * 3085 * @param freezesText Controls whether a frozen icicle should include the 3086 * entire text data: true to include it, false to not. 3087 * 3088 * @attr ref android.R.styleable#TextView_freezesText 3089 */ 3090 @android.view.RemotableViewMethod 3091 public void setFreezesText(boolean freezesText) { 3092 mFreezesText = freezesText; 3093 } 3094 3095 /** 3096 * Return whether this text view is including its entire text contents 3097 * in frozen icicles. 3098 * 3099 * @return Returns true if text is included, false if it isn't. 3100 * 3101 * @see #setFreezesText 3102 */ 3103 public boolean getFreezesText() { 3104 return mFreezesText; 3105 } 3106 3107 /////////////////////////////////////////////////////////////////////////// 3108 3109 /** 3110 * Sets the Factory used to create new Editables. 3111 */ 3112 public final void setEditableFactory(Editable.Factory factory) { 3113 mEditableFactory = factory; 3114 setText(mText); 3115 } 3116 3117 /** 3118 * Sets the Factory used to create new Spannables. 3119 */ 3120 public final void setSpannableFactory(Spannable.Factory factory) { 3121 mSpannableFactory = factory; 3122 setText(mText); 3123 } 3124 3125 /** 3126 * Sets the string value of the TextView. TextView <em>does not</em> accept 3127 * HTML-like formatting, which you can do with text strings in XML resource files. 3128 * To style your strings, attach android.text.style.* objects to a 3129 * {@link android.text.SpannableString SpannableString}, or see the 3130 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 3131 * Available Resource Types</a> documentation for an example of setting 3132 * formatted text in the XML resource file. 3133 * 3134 * @attr ref android.R.styleable#TextView_text 3135 */ 3136 @android.view.RemotableViewMethod 3137 public final void setText(CharSequence text) { 3138 setText(text, mBufferType); 3139 } 3140 3141 /** 3142 * Like {@link #setText(CharSequence)}, 3143 * except that the cursor position (if any) is retained in the new text. 3144 * 3145 * @param text The new text to place in the text view. 3146 * 3147 * @see #setText(CharSequence) 3148 */ 3149 @android.view.RemotableViewMethod 3150 public final void setTextKeepState(CharSequence text) { 3151 setTextKeepState(text, mBufferType); 3152 } 3153 3154 /** 3155 * Sets the text that this TextView is to display (see 3156 * {@link #setText(CharSequence)}) and also sets whether it is stored 3157 * in a styleable/spannable buffer and whether it is editable. 3158 * 3159 * @attr ref android.R.styleable#TextView_text 3160 * @attr ref android.R.styleable#TextView_bufferType 3161 */ 3162 public void setText(CharSequence text, BufferType type) { 3163 setText(text, type, true, 0); 3164 3165 if (mCharWrapper != null) { 3166 mCharWrapper.mChars = null; 3167 } 3168 } 3169 3170 private void setText(CharSequence text, BufferType type, 3171 boolean notifyBefore, int oldlen) { 3172 if (text == null) { 3173 text = ""; 3174 } 3175 3176 // If suggestions are not enabled, remove the suggestion spans from the text 3177 if (!isSuggestionsEnabled()) { 3178 text = removeSuggestionSpans(text); 3179 } 3180 3181 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 3182 3183 if (text instanceof Spanned && 3184 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 3185 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 3186 setHorizontalFadingEdgeEnabled(true); 3187 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 3188 } else { 3189 setHorizontalFadingEdgeEnabled(false); 3190 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 3191 } 3192 setEllipsize(TextUtils.TruncateAt.MARQUEE); 3193 } 3194 3195 int n = mFilters.length; 3196 for (int i = 0; i < n; i++) { 3197 CharSequence out = mFilters[i].filter(text, 0, text.length(), 3198 EMPTY_SPANNED, 0, 0); 3199 if (out != null) { 3200 text = out; 3201 } 3202 } 3203 3204 if (notifyBefore) { 3205 if (mText != null) { 3206 oldlen = mText.length(); 3207 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 3208 } else { 3209 sendBeforeTextChanged("", 0, 0, text.length()); 3210 } 3211 } 3212 3213 boolean needEditableForNotification = false; 3214 boolean startSpellCheck = false; 3215 3216 if (mListeners != null && mListeners.size() != 0) { 3217 needEditableForNotification = true; 3218 } 3219 3220 if (type == BufferType.EDITABLE || mInput != null || needEditableForNotification) { 3221 Editable t = mEditableFactory.newEditable(text); 3222 text = t; 3223 setFilters(t, mFilters); 3224 InputMethodManager imm = InputMethodManager.peekInstance(); 3225 if (imm != null) imm.restartInput(this); 3226 startSpellCheck = true; 3227 } else if (type == BufferType.SPANNABLE || mMovement != null) { 3228 text = mSpannableFactory.newSpannable(text); 3229 } else if (!(text instanceof CharWrapper)) { 3230 text = TextUtils.stringOrSpannedString(text); 3231 } 3232 3233 if (mAutoLinkMask != 0) { 3234 Spannable s2; 3235 3236 if (type == BufferType.EDITABLE || text instanceof Spannable) { 3237 s2 = (Spannable) text; 3238 } else { 3239 s2 = mSpannableFactory.newSpannable(text); 3240 } 3241 3242 if (Linkify.addLinks(s2, mAutoLinkMask)) { 3243 text = s2; 3244 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 3245 3246 /* 3247 * We must go ahead and set the text before changing the 3248 * movement method, because setMovementMethod() may call 3249 * setText() again to try to upgrade the buffer type. 3250 */ 3251 mText = text; 3252 3253 // Do not change the movement method for text that support text selection as it 3254 // would prevent an arbitrary cursor displacement. 3255 if (mLinksClickable && !textCanBeSelected()) { 3256 setMovementMethod(LinkMovementMethod.getInstance()); 3257 } 3258 } 3259 } 3260 3261 mBufferType = type; 3262 mText = text; 3263 3264 if (mTransformation == null) { 3265 mTransformed = text; 3266 } else { 3267 mTransformed = mTransformation.getTransformation(text, this); 3268 } 3269 3270 final int textLength = text.length(); 3271 3272 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 3273 Spannable sp = (Spannable) text; 3274 3275 // Remove any ChangeWatchers that might have come 3276 // from other TextViews. 3277 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 3278 final int count = watchers.length; 3279 for (int i = 0; i < count; i++) 3280 sp.removeSpan(watchers[i]); 3281 3282 if (mChangeWatcher == null) 3283 mChangeWatcher = new ChangeWatcher(); 3284 3285 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 3286 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 3287 3288 if (mInput != null) { 3289 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3290 } 3291 3292 if (mTransformation != null) { 3293 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3294 } 3295 3296 if (mMovement != null) { 3297 mMovement.initialize(this, (Spannable) text); 3298 3299 /* 3300 * Initializing the movement method will have set the 3301 * selection, so reset mSelectionMoved to keep that from 3302 * interfering with the normal on-focus selection-setting. 3303 */ 3304 mSelectionMoved = false; 3305 } 3306 } 3307 3308 if (mLayout != null) { 3309 checkForRelayout(); 3310 } 3311 3312 sendOnTextChanged(text, 0, oldlen, textLength); 3313 onTextChanged(text, 0, oldlen, textLength); 3314 3315 if (startSpellCheck && mSpellChecker != null) { 3316 // This view has to have been previously attached for mSpellChecker to exist 3317 updateSpellCheckSpans(0, textLength); 3318 } 3319 3320 if (needEditableForNotification) { 3321 sendAfterTextChanged((Editable) text); 3322 } 3323 3324 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 3325 prepareCursorControllers(); 3326 } 3327 3328 /** 3329 * Sets the TextView to display the specified slice of the specified 3330 * char array. You must promise that you will not change the contents 3331 * of the array except for right before another call to setText(), 3332 * since the TextView has no way to know that the text 3333 * has changed and that it needs to invalidate and re-layout. 3334 */ 3335 public final void setText(char[] text, int start, int len) { 3336 int oldlen = 0; 3337 3338 if (start < 0 || len < 0 || start + len > text.length) { 3339 throw new IndexOutOfBoundsException(start + ", " + len); 3340 } 3341 3342 /* 3343 * We must do the before-notification here ourselves because if 3344 * the old text is a CharWrapper we destroy it before calling 3345 * into the normal path. 3346 */ 3347 if (mText != null) { 3348 oldlen = mText.length(); 3349 sendBeforeTextChanged(mText, 0, oldlen, len); 3350 } else { 3351 sendBeforeTextChanged("", 0, 0, len); 3352 } 3353 3354 if (mCharWrapper == null) { 3355 mCharWrapper = new CharWrapper(text, start, len); 3356 } else { 3357 mCharWrapper.set(text, start, len); 3358 } 3359 3360 setText(mCharWrapper, mBufferType, false, oldlen); 3361 } 3362 3363 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 3364 private char[] mChars; 3365 private int mStart, mLength; 3366 3367 public CharWrapper(char[] chars, int start, int len) { 3368 mChars = chars; 3369 mStart = start; 3370 mLength = len; 3371 } 3372 3373 /* package */ void set(char[] chars, int start, int len) { 3374 mChars = chars; 3375 mStart = start; 3376 mLength = len; 3377 } 3378 3379 public int length() { 3380 return mLength; 3381 } 3382 3383 public char charAt(int off) { 3384 return mChars[off + mStart]; 3385 } 3386 3387 @Override 3388 public String toString() { 3389 return new String(mChars, mStart, mLength); 3390 } 3391 3392 public CharSequence subSequence(int start, int end) { 3393 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3394 throw new IndexOutOfBoundsException(start + ", " + end); 3395 } 3396 3397 return new String(mChars, start + mStart, end - start); 3398 } 3399 3400 public void getChars(int start, int end, char[] buf, int off) { 3401 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3402 throw new IndexOutOfBoundsException(start + ", " + end); 3403 } 3404 3405 System.arraycopy(mChars, start + mStart, buf, off, end - start); 3406 } 3407 3408 public void drawText(Canvas c, int start, int end, 3409 float x, float y, Paint p) { 3410 c.drawText(mChars, start + mStart, end - start, x, y, p); 3411 } 3412 3413 public void drawTextRun(Canvas c, int start, int end, 3414 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 3415 int count = end - start; 3416 int contextCount = contextEnd - contextStart; 3417 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 3418 contextCount, x, y, flags, p); 3419 } 3420 3421 public float measureText(int start, int end, Paint p) { 3422 return p.measureText(mChars, start + mStart, end - start); 3423 } 3424 3425 public int getTextWidths(int start, int end, float[] widths, Paint p) { 3426 return p.getTextWidths(mChars, start + mStart, end - start, widths); 3427 } 3428 3429 public float getTextRunAdvances(int start, int end, int contextStart, 3430 int contextEnd, int flags, float[] advances, int advancesIndex, 3431 Paint p) { 3432 int count = end - start; 3433 int contextCount = contextEnd - contextStart; 3434 return p.getTextRunAdvances(mChars, start + mStart, count, 3435 contextStart + mStart, contextCount, flags, advances, 3436 advancesIndex); 3437 } 3438 3439 public float getTextRunAdvances(int start, int end, int contextStart, 3440 int contextEnd, int flags, float[] advances, int advancesIndex, 3441 Paint p, int reserved) { 3442 int count = end - start; 3443 int contextCount = contextEnd - contextStart; 3444 return p.getTextRunAdvances(mChars, start + mStart, count, 3445 contextStart + mStart, contextCount, flags, advances, 3446 advancesIndex, reserved); 3447 } 3448 3449 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 3450 int offset, int cursorOpt, Paint p) { 3451 int contextCount = contextEnd - contextStart; 3452 return p.getTextRunCursor(mChars, contextStart + mStart, 3453 contextCount, flags, offset + mStart, cursorOpt); 3454 } 3455 } 3456 3457 /** 3458 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 3459 * except that the cursor position (if any) is retained in the new text. 3460 * 3461 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3462 */ 3463 public final void setTextKeepState(CharSequence text, BufferType type) { 3464 int start = getSelectionStart(); 3465 int end = getSelectionEnd(); 3466 int len = text.length(); 3467 3468 setText(text, type); 3469 3470 if (start >= 0 || end >= 0) { 3471 if (mText instanceof Spannable) { 3472 Selection.setSelection((Spannable) mText, 3473 Math.max(0, Math.min(start, len)), 3474 Math.max(0, Math.min(end, len))); 3475 } 3476 } 3477 } 3478 3479 @android.view.RemotableViewMethod 3480 public final void setText(int resid) { 3481 setText(getContext().getResources().getText(resid)); 3482 } 3483 3484 public final void setText(int resid, BufferType type) { 3485 setText(getContext().getResources().getText(resid), type); 3486 } 3487 3488 /** 3489 * Sets the text to be displayed when the text of the TextView is empty. 3490 * Null means to use the normal empty text. The hint does not currently 3491 * participate in determining the size of the view. 3492 * 3493 * @attr ref android.R.styleable#TextView_hint 3494 */ 3495 @android.view.RemotableViewMethod 3496 public final void setHint(CharSequence hint) { 3497 mHint = TextUtils.stringOrSpannedString(hint); 3498 3499 if (mLayout != null) { 3500 checkForRelayout(); 3501 } 3502 3503 if (mText.length() == 0) { 3504 invalidate(); 3505 } 3506 } 3507 3508 /** 3509 * Sets the text to be displayed when the text of the TextView is empty, 3510 * from a resource. 3511 * 3512 * @attr ref android.R.styleable#TextView_hint 3513 */ 3514 @android.view.RemotableViewMethod 3515 public final void setHint(int resid) { 3516 setHint(getContext().getResources().getText(resid)); 3517 } 3518 3519 /** 3520 * Returns the hint that is displayed when the text of the TextView 3521 * is empty. 3522 * 3523 * @attr ref android.R.styleable#TextView_hint 3524 */ 3525 @ViewDebug.CapturedViewProperty 3526 public CharSequence getHint() { 3527 return mHint; 3528 } 3529 3530 private static boolean isMultilineInputType(int type) { 3531 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3532 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3533 } 3534 3535 /** 3536 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3537 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3538 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3539 * then a soft keyboard will not be displayed for this text view. 3540 * 3541 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3542 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3543 * type. 3544 * 3545 * @see #getInputType() 3546 * @see #setRawInputType(int) 3547 * @see android.text.InputType 3548 * @attr ref android.R.styleable#TextView_inputType 3549 */ 3550 public void setInputType(int type) { 3551 final boolean wasPassword = isPasswordInputType(mInputType); 3552 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3553 setInputType(type, false); 3554 final boolean isPassword = isPasswordInputType(type); 3555 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3556 boolean forceUpdate = false; 3557 if (isPassword) { 3558 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3559 setTypefaceByIndex(MONOSPACE, 0); 3560 } else if (isVisiblePassword) { 3561 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3562 forceUpdate = true; 3563 } 3564 setTypefaceByIndex(MONOSPACE, 0); 3565 } else if (wasPassword || wasVisiblePassword) { 3566 // not in password mode, clean up typeface and transformation 3567 setTypefaceByIndex(-1, -1); 3568 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3569 forceUpdate = true; 3570 } 3571 } 3572 3573 boolean singleLine = !isMultilineInputType(type); 3574 3575 // We need to update the single line mode if it has changed or we 3576 // were previously in password mode. 3577 if (mSingleLine != singleLine || forceUpdate) { 3578 // Change single line mode, but only change the transformation if 3579 // we are not in password mode. 3580 applySingleLine(singleLine, !isPassword, true); 3581 } 3582 3583 if (!isSuggestionsEnabled()) { 3584 mText = removeSuggestionSpans(mText); 3585 } 3586 3587 InputMethodManager imm = InputMethodManager.peekInstance(); 3588 if (imm != null) imm.restartInput(this); 3589 } 3590 3591 /** 3592 * It would be better to rely on the input type for everything. A password inputType should have 3593 * a password transformation. We should hence use isPasswordInputType instead of this method. 3594 * 3595 * We should: 3596 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3597 * would install the correct transformation). 3598 * - Refuse the installation of a non-password transformation in setTransformation if the input 3599 * type is password. 3600 * 3601 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3602 * is useful since it matches what the user can see (obfuscated text or not). 3603 * 3604 * @return true if the current transformation method is of the password type. 3605 */ 3606 private boolean hasPasswordTransformationMethod() { 3607 return mTransformation instanceof PasswordTransformationMethod; 3608 } 3609 3610 private static boolean isPasswordInputType(int inputType) { 3611 final int variation = 3612 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3613 return variation 3614 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3615 || variation 3616 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3617 || variation 3618 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3619 } 3620 3621 private static boolean isVisiblePasswordInputType(int inputType) { 3622 final int variation = 3623 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3624 return variation 3625 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3626 } 3627 3628 /** 3629 * Directly change the content type integer of the text view, without 3630 * modifying any other state. 3631 * @see #setInputType(int) 3632 * @see android.text.InputType 3633 * @attr ref android.R.styleable#TextView_inputType 3634 */ 3635 public void setRawInputType(int type) { 3636 mInputType = type; 3637 } 3638 3639 private void setInputType(int type, boolean direct) { 3640 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3641 KeyListener input; 3642 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3643 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3644 TextKeyListener.Capitalize cap; 3645 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3646 cap = TextKeyListener.Capitalize.CHARACTERS; 3647 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3648 cap = TextKeyListener.Capitalize.WORDS; 3649 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3650 cap = TextKeyListener.Capitalize.SENTENCES; 3651 } else { 3652 cap = TextKeyListener.Capitalize.NONE; 3653 } 3654 input = TextKeyListener.getInstance(autotext, cap); 3655 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3656 input = DigitsKeyListener.getInstance( 3657 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3658 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3659 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3660 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3661 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3662 input = DateKeyListener.getInstance(); 3663 break; 3664 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3665 input = TimeKeyListener.getInstance(); 3666 break; 3667 default: 3668 input = DateTimeKeyListener.getInstance(); 3669 break; 3670 } 3671 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3672 input = DialerKeyListener.getInstance(); 3673 } else { 3674 input = TextKeyListener.getInstance(); 3675 } 3676 setRawInputType(type); 3677 if (direct) mInput = input; 3678 else { 3679 setKeyListenerOnly(input); 3680 } 3681 } 3682 3683 /** 3684 * Get the type of the content. 3685 * 3686 * @see #setInputType(int) 3687 * @see android.text.InputType 3688 */ 3689 public int getInputType() { 3690 return mInputType; 3691 } 3692 3693 /** 3694 * Change the editor type integer associated with the text view, which 3695 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3696 * has focus. 3697 * @see #getImeOptions 3698 * @see android.view.inputmethod.EditorInfo 3699 * @attr ref android.R.styleable#TextView_imeOptions 3700 */ 3701 public void setImeOptions(int imeOptions) { 3702 if (mInputContentType == null) { 3703 mInputContentType = new InputContentType(); 3704 } 3705 mInputContentType.imeOptions = imeOptions; 3706 } 3707 3708 /** 3709 * Get the type of the IME editor. 3710 * 3711 * @see #setImeOptions(int) 3712 * @see android.view.inputmethod.EditorInfo 3713 */ 3714 public int getImeOptions() { 3715 return mInputContentType != null 3716 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3717 } 3718 3719 /** 3720 * Change the custom IME action associated with the text view, which 3721 * will be reported to an IME with {@link EditorInfo#actionLabel} 3722 * and {@link EditorInfo#actionId} when it has focus. 3723 * @see #getImeActionLabel 3724 * @see #getImeActionId 3725 * @see android.view.inputmethod.EditorInfo 3726 * @attr ref android.R.styleable#TextView_imeActionLabel 3727 * @attr ref android.R.styleable#TextView_imeActionId 3728 */ 3729 public void setImeActionLabel(CharSequence label, int actionId) { 3730 if (mInputContentType == null) { 3731 mInputContentType = new InputContentType(); 3732 } 3733 mInputContentType.imeActionLabel = label; 3734 mInputContentType.imeActionId = actionId; 3735 } 3736 3737 /** 3738 * Get the IME action label previous set with {@link #setImeActionLabel}. 3739 * 3740 * @see #setImeActionLabel 3741 * @see android.view.inputmethod.EditorInfo 3742 */ 3743 public CharSequence getImeActionLabel() { 3744 return mInputContentType != null 3745 ? mInputContentType.imeActionLabel : null; 3746 } 3747 3748 /** 3749 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3750 * 3751 * @see #setImeActionLabel 3752 * @see android.view.inputmethod.EditorInfo 3753 */ 3754 public int getImeActionId() { 3755 return mInputContentType != null 3756 ? mInputContentType.imeActionId : 0; 3757 } 3758 3759 /** 3760 * Set a special listener to be called when an action is performed 3761 * on the text view. This will be called when the enter key is pressed, 3762 * or when an action supplied to the IME is selected by the user. Setting 3763 * this means that the normal hard key event will not insert a newline 3764 * into the text view, even if it is multi-line; holding down the ALT 3765 * modifier will, however, allow the user to insert a newline character. 3766 */ 3767 public void setOnEditorActionListener(OnEditorActionListener l) { 3768 if (mInputContentType == null) { 3769 mInputContentType = new InputContentType(); 3770 } 3771 mInputContentType.onEditorActionListener = l; 3772 } 3773 3774 /** 3775 * Called when an attached input method calls 3776 * {@link InputConnection#performEditorAction(int) 3777 * InputConnection.performEditorAction()} 3778 * for this text view. The default implementation will call your action 3779 * listener supplied to {@link #setOnEditorActionListener}, or perform 3780 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3781 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3782 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3783 * EditorInfo.IME_ACTION_DONE}. 3784 * 3785 * <p>For backwards compatibility, if no IME options have been set and the 3786 * text view would not normally advance focus on enter, then 3787 * the NEXT and DONE actions received here will be turned into an enter 3788 * key down/up pair to go through the normal key handling. 3789 * 3790 * @param actionCode The code of the action being performed. 3791 * 3792 * @see #setOnEditorActionListener 3793 */ 3794 public void onEditorAction(int actionCode) { 3795 final InputContentType ict = mInputContentType; 3796 if (ict != null) { 3797 if (ict.onEditorActionListener != null) { 3798 if (ict.onEditorActionListener.onEditorAction(this, 3799 actionCode, null)) { 3800 return; 3801 } 3802 } 3803 3804 // This is the handling for some default action. 3805 // Note that for backwards compatibility we don't do this 3806 // default handling if explicit ime options have not been given, 3807 // instead turning this into the normal enter key codes that an 3808 // app may be expecting. 3809 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3810 View v = focusSearch(FOCUS_FORWARD); 3811 if (v != null) { 3812 if (!v.requestFocus(FOCUS_FORWARD)) { 3813 throw new IllegalStateException("focus search returned a view " + 3814 "that wasn't able to take focus!"); 3815 } 3816 } 3817 return; 3818 3819 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3820 View v = focusSearch(FOCUS_BACKWARD); 3821 if (v != null) { 3822 if (!v.requestFocus(FOCUS_BACKWARD)) { 3823 throw new IllegalStateException("focus search returned a view " + 3824 "that wasn't able to take focus!"); 3825 } 3826 } 3827 return; 3828 3829 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3830 InputMethodManager imm = InputMethodManager.peekInstance(); 3831 if (imm != null && imm.isActive(this)) { 3832 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3833 } 3834 clearFocus(); 3835 return; 3836 } 3837 } 3838 3839 Handler h = getHandler(); 3840 if (h != null) { 3841 long eventTime = SystemClock.uptimeMillis(); 3842 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3843 new KeyEvent(eventTime, eventTime, 3844 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3845 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3846 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3847 | KeyEvent.FLAG_EDITOR_ACTION))); 3848 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3849 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3850 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3851 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3852 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3853 | KeyEvent.FLAG_EDITOR_ACTION))); 3854 } 3855 } 3856 3857 /** 3858 * Set the private content type of the text, which is the 3859 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3860 * field that will be filled in when creating an input connection. 3861 * 3862 * @see #getPrivateImeOptions() 3863 * @see EditorInfo#privateImeOptions 3864 * @attr ref android.R.styleable#TextView_privateImeOptions 3865 */ 3866 public void setPrivateImeOptions(String type) { 3867 if (mInputContentType == null) mInputContentType = new InputContentType(); 3868 mInputContentType.privateImeOptions = type; 3869 } 3870 3871 /** 3872 * Get the private type of the content. 3873 * 3874 * @see #setPrivateImeOptions(String) 3875 * @see EditorInfo#privateImeOptions 3876 */ 3877 public String getPrivateImeOptions() { 3878 return mInputContentType != null 3879 ? mInputContentType.privateImeOptions : null; 3880 } 3881 3882 /** 3883 * Set the extra input data of the text, which is the 3884 * {@link EditorInfo#extras TextBoxAttribute.extras} 3885 * Bundle that will be filled in when creating an input connection. The 3886 * given integer is the resource ID of an XML resource holding an 3887 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3888 * 3889 * @see #getInputExtras(boolean) 3890 * @see EditorInfo#extras 3891 * @attr ref android.R.styleable#TextView_editorExtras 3892 */ 3893 public void setInputExtras(int xmlResId) 3894 throws XmlPullParserException, IOException { 3895 XmlResourceParser parser = getResources().getXml(xmlResId); 3896 if (mInputContentType == null) mInputContentType = new InputContentType(); 3897 mInputContentType.extras = new Bundle(); 3898 getResources().parseBundleExtras(parser, mInputContentType.extras); 3899 } 3900 3901 /** 3902 * Retrieve the input extras currently associated with the text view, which 3903 * can be viewed as well as modified. 3904 * 3905 * @param create If true, the extras will be created if they don't already 3906 * exist. Otherwise, null will be returned if none have been created. 3907 * @see #setInputExtras(int) 3908 * @see EditorInfo#extras 3909 * @attr ref android.R.styleable#TextView_editorExtras 3910 */ 3911 public Bundle getInputExtras(boolean create) { 3912 if (mInputContentType == null) { 3913 if (!create) return null; 3914 mInputContentType = new InputContentType(); 3915 } 3916 if (mInputContentType.extras == null) { 3917 if (!create) return null; 3918 mInputContentType.extras = new Bundle(); 3919 } 3920 return mInputContentType.extras; 3921 } 3922 3923 /** 3924 * Returns the error message that was set to be displayed with 3925 * {@link #setError}, or <code>null</code> if no error was set 3926 * or if it the error was cleared by the widget after user input. 3927 */ 3928 public CharSequence getError() { 3929 return mError; 3930 } 3931 3932 /** 3933 * Sets the right-hand compound drawable of the TextView to the "error" 3934 * icon and sets an error message that will be displayed in a popup when 3935 * the TextView has focus. The icon and error message will be reset to 3936 * null when any key events cause changes to the TextView's text. If the 3937 * <code>error</code> is <code>null</code>, the error message and icon 3938 * will be cleared. 3939 */ 3940 @android.view.RemotableViewMethod 3941 public void setError(CharSequence error) { 3942 if (error == null) { 3943 setError(null, null); 3944 } else { 3945 Drawable dr = getContext().getResources(). 3946 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3947 3948 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3949 setError(error, dr); 3950 } 3951 } 3952 3953 /** 3954 * Sets the right-hand compound drawable of the TextView to the specified 3955 * icon and sets an error message that will be displayed in a popup when 3956 * the TextView has focus. The icon and error message will be reset to 3957 * null when any key events cause changes to the TextView's text. The 3958 * drawable must already have had {@link Drawable#setBounds} set on it. 3959 * If the <code>error</code> is <code>null</code>, the error message will 3960 * be cleared (and you should provide a <code>null</code> icon as well). 3961 */ 3962 public void setError(CharSequence error, Drawable icon) { 3963 error = TextUtils.stringOrSpannedString(error); 3964 3965 mError = error; 3966 mErrorWasChanged = true; 3967 final Drawables dr = mDrawables; 3968 if (dr != null) { 3969 switch (getResolvedLayoutDirection()) { 3970 default: 3971 case LAYOUT_DIRECTION_LTR: 3972 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, 3973 dr.mDrawableBottom); 3974 break; 3975 case LAYOUT_DIRECTION_RTL: 3976 setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight, 3977 dr.mDrawableBottom); 3978 break; 3979 } 3980 } else { 3981 setCompoundDrawables(null, null, icon, null); 3982 } 3983 3984 if (error == null) { 3985 if (mPopup != null) { 3986 if (mPopup.isShowing()) { 3987 mPopup.dismiss(); 3988 } 3989 3990 mPopup = null; 3991 } 3992 } else { 3993 if (isFocused()) { 3994 showError(); 3995 } 3996 } 3997 } 3998 3999 private void showError() { 4000 if (getWindowToken() == null) { 4001 mShowErrorAfterAttach = true; 4002 return; 4003 } 4004 4005 if (mPopup == null) { 4006 LayoutInflater inflater = LayoutInflater.from(getContext()); 4007 final TextView err = (TextView) inflater.inflate( 4008 com.android.internal.R.layout.textview_hint, null); 4009 4010 final float scale = getResources().getDisplayMetrics().density; 4011 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 4012 mPopup.setFocusable(false); 4013 // The user is entering text, so the input method is needed. We 4014 // don't want the popup to be displayed on top of it. 4015 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 4016 } 4017 4018 TextView tv = (TextView) mPopup.getContentView(); 4019 chooseSize(mPopup, mError, tv); 4020 tv.setText(mError); 4021 4022 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 4023 mPopup.fixDirection(mPopup.isAboveAnchor()); 4024 } 4025 4026 private static class ErrorPopup extends PopupWindow { 4027 private boolean mAbove = false; 4028 private final TextView mView; 4029 private int mPopupInlineErrorBackgroundId = 0; 4030 private int mPopupInlineErrorAboveBackgroundId = 0; 4031 4032 ErrorPopup(TextView v, int width, int height) { 4033 super(v, width, height); 4034 mView = v; 4035 // Make sure the TextView has a background set as it will be used the first time it is 4036 // shown and positionned. Initialized with below background, which should have 4037 // dimensions identical to the above version for this to work (and is more likely). 4038 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 4039 com.android.internal.R.styleable.Theme_errorMessageBackground); 4040 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 4041 } 4042 4043 void fixDirection(boolean above) { 4044 mAbove = above; 4045 4046 if (above) { 4047 mPopupInlineErrorAboveBackgroundId = 4048 getResourceId(mPopupInlineErrorAboveBackgroundId, 4049 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 4050 } else { 4051 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 4052 com.android.internal.R.styleable.Theme_errorMessageBackground); 4053 } 4054 4055 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 4056 mPopupInlineErrorBackgroundId); 4057 } 4058 4059 private int getResourceId(int currentId, int index) { 4060 if (currentId == 0) { 4061 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 4062 R.styleable.Theme); 4063 currentId = styledAttributes.getResourceId(index, 0); 4064 styledAttributes.recycle(); 4065 } 4066 return currentId; 4067 } 4068 4069 @Override 4070 public void update(int x, int y, int w, int h, boolean force) { 4071 super.update(x, y, w, h, force); 4072 4073 boolean above = isAboveAnchor(); 4074 if (above != mAbove) { 4075 fixDirection(above); 4076 } 4077 } 4078 } 4079 4080 /** 4081 * Returns the Y offset to make the pointy top of the error point 4082 * at the middle of the error icon. 4083 */ 4084 private int getErrorX() { 4085 /* 4086 * The "25" is the distance between the point and the right edge 4087 * of the background 4088 */ 4089 final float scale = getResources().getDisplayMetrics().density; 4090 4091 final Drawables dr = mDrawables; 4092 return getWidth() - mPopup.getWidth() - getPaddingRight() - 4093 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 4094 } 4095 4096 /** 4097 * Returns the Y offset to make the pointy top of the error point 4098 * at the bottom of the error icon. 4099 */ 4100 private int getErrorY() { 4101 /* 4102 * Compound, not extended, because the icon is not clipped 4103 * if the text height is smaller. 4104 */ 4105 final int compoundPaddingTop = getCompoundPaddingTop(); 4106 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 4107 4108 final Drawables dr = mDrawables; 4109 int icontop = compoundPaddingTop + 4110 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 4111 4112 /* 4113 * The "2" is the distance between the point and the top edge 4114 * of the background. 4115 */ 4116 final float scale = getResources().getDisplayMetrics().density; 4117 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 4118 (int) (2 * scale + 0.5f); 4119 } 4120 4121 private void hideError() { 4122 if (mPopup != null) { 4123 if (mPopup.isShowing()) { 4124 mPopup.dismiss(); 4125 } 4126 } 4127 4128 mShowErrorAfterAttach = false; 4129 } 4130 4131 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 4132 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 4133 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 4134 4135 int defaultWidthInPixels = getResources().getDimensionPixelSize( 4136 com.android.internal.R.dimen.textview_error_popup_default_width); 4137 Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels, 4138 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 4139 float max = 0; 4140 for (int i = 0; i < l.getLineCount(); i++) { 4141 max = Math.max(max, l.getLineWidth(i)); 4142 } 4143 4144 /* 4145 * Now set the popup size to be big enough for the text plus the border capped 4146 * to DEFAULT_MAX_POPUP_WIDTH 4147 */ 4148 pop.setWidth(wid + (int) Math.ceil(max)); 4149 pop.setHeight(ht + l.getHeight()); 4150 } 4151 4152 4153 @Override 4154 protected boolean setFrame(int l, int t, int r, int b) { 4155 boolean result = super.setFrame(l, t, r, b); 4156 4157 if (mPopup != null) { 4158 TextView tv = (TextView) mPopup.getContentView(); 4159 chooseSize(mPopup, mError, tv); 4160 mPopup.update(this, getErrorX(), getErrorY(), 4161 mPopup.getWidth(), mPopup.getHeight()); 4162 } 4163 4164 restartMarqueeIfNeeded(); 4165 4166 return result; 4167 } 4168 4169 private void restartMarqueeIfNeeded() { 4170 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4171 mRestartMarquee = false; 4172 startMarquee(); 4173 } 4174 } 4175 4176 /** 4177 * Sets the list of input filters that will be used if the buffer is 4178 * Editable. Has no effect otherwise. 4179 * 4180 * @attr ref android.R.styleable#TextView_maxLength 4181 */ 4182 public void setFilters(InputFilter[] filters) { 4183 if (filters == null) { 4184 throw new IllegalArgumentException(); 4185 } 4186 4187 mFilters = filters; 4188 4189 if (mText instanceof Editable) { 4190 setFilters((Editable) mText, filters); 4191 } 4192 } 4193 4194 /** 4195 * Sets the list of input filters on the specified Editable, 4196 * and includes mInput in the list if it is an InputFilter. 4197 */ 4198 private void setFilters(Editable e, InputFilter[] filters) { 4199 if (mInput instanceof InputFilter) { 4200 InputFilter[] nf = new InputFilter[filters.length + 1]; 4201 4202 System.arraycopy(filters, 0, nf, 0, filters.length); 4203 nf[filters.length] = (InputFilter) mInput; 4204 4205 e.setFilters(nf); 4206 } else { 4207 e.setFilters(filters); 4208 } 4209 } 4210 4211 /** 4212 * Returns the current list of input filters. 4213 */ 4214 public InputFilter[] getFilters() { 4215 return mFilters; 4216 } 4217 4218 ///////////////////////////////////////////////////////////////////////// 4219 4220 private int getVerticalOffset(boolean forceNormal) { 4221 int voffset = 0; 4222 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4223 4224 Layout l = mLayout; 4225 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4226 l = mHintLayout; 4227 } 4228 4229 if (gravity != Gravity.TOP) { 4230 int boxht; 4231 4232 if (l == mHintLayout) { 4233 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4234 getCompoundPaddingBottom(); 4235 } else { 4236 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4237 getExtendedPaddingBottom(); 4238 } 4239 int textht = l.getHeight(); 4240 4241 if (textht < boxht) { 4242 if (gravity == Gravity.BOTTOM) 4243 voffset = boxht - textht; 4244 else // (gravity == Gravity.CENTER_VERTICAL) 4245 voffset = (boxht - textht) >> 1; 4246 } 4247 } 4248 return voffset; 4249 } 4250 4251 private int getBottomVerticalOffset(boolean forceNormal) { 4252 int voffset = 0; 4253 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4254 4255 Layout l = mLayout; 4256 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4257 l = mHintLayout; 4258 } 4259 4260 if (gravity != Gravity.BOTTOM) { 4261 int boxht; 4262 4263 if (l == mHintLayout) { 4264 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4265 getCompoundPaddingBottom(); 4266 } else { 4267 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4268 getExtendedPaddingBottom(); 4269 } 4270 int textht = l.getHeight(); 4271 4272 if (textht < boxht) { 4273 if (gravity == Gravity.TOP) 4274 voffset = boxht - textht; 4275 else // (gravity == Gravity.CENTER_VERTICAL) 4276 voffset = (boxht - textht) >> 1; 4277 } 4278 } 4279 return voffset; 4280 } 4281 4282 private void invalidateCursorPath() { 4283 if (mHighlightPathBogus) { 4284 invalidateCursor(); 4285 } else { 4286 final int horizontalPadding = getCompoundPaddingLeft(); 4287 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4288 4289 if (mCursorCount == 0) { 4290 synchronized (sTempRect) { 4291 /* 4292 * The reason for this concern about the thickness of the 4293 * cursor and doing the floor/ceil on the coordinates is that 4294 * some EditTexts (notably textfields in the Browser) have 4295 * anti-aliased text where not all the characters are 4296 * necessarily at integer-multiple locations. This should 4297 * make sure the entire cursor gets invalidated instead of 4298 * sometimes missing half a pixel. 4299 */ 4300 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 4301 if (thick < 1.0f) { 4302 thick = 1.0f; 4303 } 4304 4305 thick /= 2.0f; 4306 4307 mHighlightPath.computeBounds(sTempRect, false); 4308 4309 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 4310 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 4311 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 4312 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 4313 } 4314 } else { 4315 for (int i = 0; i < mCursorCount; i++) { 4316 Rect bounds = mCursorDrawable[i].getBounds(); 4317 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 4318 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 4319 } 4320 } 4321 } 4322 } 4323 4324 private void invalidateCursor() { 4325 int where = getSelectionEnd(); 4326 4327 invalidateCursor(where, where, where); 4328 } 4329 4330 private void invalidateCursor(int a, int b, int c) { 4331 if (mLayout == null) { 4332 invalidate(); 4333 } else { 4334 if (a >= 0 || b >= 0 || c >= 0) { 4335 int first = Math.min(Math.min(a, b), c); 4336 int last = Math.max(Math.max(a, b), c); 4337 4338 int line = mLayout.getLineForOffset(first); 4339 int top = mLayout.getLineTop(line); 4340 4341 // This is ridiculous, but the descent from the line above 4342 // can hang down into the line we really want to redraw, 4343 // so we have to invalidate part of the line above to make 4344 // sure everything that needs to be redrawn really is. 4345 // (But not the whole line above, because that would cause 4346 // the same problem with the descenders on the line above it!) 4347 if (line > 0) { 4348 top -= mLayout.getLineDescent(line - 1); 4349 } 4350 4351 int line2; 4352 4353 if (first == last) 4354 line2 = line; 4355 else 4356 line2 = mLayout.getLineForOffset(last); 4357 4358 int bottom = mLayout.getLineTop(line2 + 1); 4359 4360 final int horizontalPadding = getCompoundPaddingLeft(); 4361 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4362 4363 // If used, the cursor drawables can have an arbitrary dimension that can go beyond 4364 // the invalidated lines specified above. 4365 for (int i = 0; i < mCursorCount; i++) { 4366 Rect bounds = mCursorDrawable[i].getBounds(); 4367 top = Math.min(top, bounds.top); 4368 bottom = Math.max(bottom, bounds.bottom); 4369 // Horizontal bounds are already full width, no need to update 4370 } 4371 4372 invalidate(horizontalPadding + mScrollX, top + verticalPadding, 4373 horizontalPadding + mScrollX + getWidth() - 4374 getCompoundPaddingLeft() - getCompoundPaddingRight(), 4375 bottom + verticalPadding); 4376 } 4377 } 4378 } 4379 4380 private void registerForPreDraw() { 4381 final ViewTreeObserver observer = getViewTreeObserver(); 4382 4383 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 4384 observer.addOnPreDrawListener(this); 4385 mPreDrawState = PREDRAW_PENDING; 4386 } else if (mPreDrawState == PREDRAW_DONE) { 4387 mPreDrawState = PREDRAW_PENDING; 4388 } 4389 4390 // else state is PREDRAW_PENDING, so keep waiting. 4391 } 4392 4393 /** 4394 * {@inheritDoc} 4395 */ 4396 public boolean onPreDraw() { 4397 if (mPreDrawState != PREDRAW_PENDING) { 4398 return true; 4399 } 4400 4401 if (mLayout == null) { 4402 assumeLayout(); 4403 } 4404 4405 boolean changed = false; 4406 4407 if (mMovement != null) { 4408 /* This code also provides auto-scrolling when a cursor is moved using a 4409 * CursorController (insertion point or selection limits). 4410 * For selection, ensure start or end is visible depending on controller's state. 4411 */ 4412 int curs = getSelectionEnd(); 4413 // Do not create the controller if it is not already created. 4414 if (mSelectionModifierCursorController != null && 4415 mSelectionModifierCursorController.isSelectionStartDragged()) { 4416 curs = getSelectionStart(); 4417 } 4418 4419 /* 4420 * TODO: This should really only keep the end in view if 4421 * it already was before the text changed. I'm not sure 4422 * of a good way to tell from here if it was. 4423 */ 4424 if (curs < 0 && 4425 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 4426 curs = mText.length(); 4427 } 4428 4429 if (curs >= 0) { 4430 changed = bringPointIntoView(curs); 4431 } 4432 } else { 4433 changed = bringTextIntoView(); 4434 } 4435 4436 // This has to be checked here since: 4437 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 4438 // a screen rotation) since layout is not yet initialized at that point. 4439 if (mCreatedWithASelection) { 4440 startSelectionActionMode(); 4441 mCreatedWithASelection = false; 4442 } 4443 4444 // Phone specific code (there is no ExtractEditText on tablets). 4445 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 4446 // not be set. Do the test here instead. 4447 if (this instanceof ExtractEditText && hasSelection()) { 4448 startSelectionActionMode(); 4449 } 4450 4451 mPreDrawState = PREDRAW_DONE; 4452 return !changed; 4453 } 4454 4455 @Override 4456 protected void onAttachedToWindow() { 4457 super.onAttachedToWindow(); 4458 4459 mTemporaryDetach = false; 4460 4461 if (mShowErrorAfterAttach) { 4462 showError(); 4463 mShowErrorAfterAttach = false; 4464 } 4465 4466 final ViewTreeObserver observer = getViewTreeObserver(); 4467 // No need to create the controller. 4468 // The get method will add the listener on controller creation. 4469 if (mInsertionPointCursorController != null) { 4470 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 4471 } 4472 if (mSelectionModifierCursorController != null) { 4473 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 4474 } 4475 4476 // Resolve drawables as the layout direction has been resolved 4477 resolveDrawables(); 4478 4479 updateSpellCheckSpans(0, mText.length()); 4480 } 4481 4482 @Override 4483 protected void onDetachedFromWindow() { 4484 super.onDetachedFromWindow(); 4485 4486 final ViewTreeObserver observer = getViewTreeObserver(); 4487 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 4488 observer.removeOnPreDrawListener(this); 4489 mPreDrawState = PREDRAW_NOT_REGISTERED; 4490 } 4491 4492 if (mError != null) { 4493 hideError(); 4494 } 4495 4496 if (mBlink != null) { 4497 mBlink.removeCallbacks(mBlink); 4498 } 4499 4500 if (mInsertionPointCursorController != null) { 4501 mInsertionPointCursorController.onDetached(); 4502 } 4503 4504 if (mSelectionModifierCursorController != null) { 4505 mSelectionModifierCursorController.onDetached(); 4506 } 4507 4508 hideControllers(); 4509 4510 resetResolvedDrawables(); 4511 4512 if (mSpellChecker != null) { 4513 mSpellChecker.closeSession(); 4514 // Forces the creation of a new SpellChecker next time this window is created. 4515 // Will handle the cases where the settings has been changed in the meantime. 4516 mSpellChecker = null; 4517 } 4518 } 4519 4520 @Override 4521 protected boolean isPaddingOffsetRequired() { 4522 return mShadowRadius != 0 || mDrawables != null; 4523 } 4524 4525 @Override 4526 protected int getLeftPaddingOffset() { 4527 return getCompoundPaddingLeft() - mPaddingLeft + 4528 (int) Math.min(0, mShadowDx - mShadowRadius); 4529 } 4530 4531 @Override 4532 protected int getTopPaddingOffset() { 4533 return (int) Math.min(0, mShadowDy - mShadowRadius); 4534 } 4535 4536 @Override 4537 protected int getBottomPaddingOffset() { 4538 return (int) Math.max(0, mShadowDy + mShadowRadius); 4539 } 4540 4541 @Override 4542 protected int getRightPaddingOffset() { 4543 return -(getCompoundPaddingRight() - mPaddingRight) + 4544 (int) Math.max(0, mShadowDx + mShadowRadius); 4545 } 4546 4547 @Override 4548 protected boolean verifyDrawable(Drawable who) { 4549 final boolean verified = super.verifyDrawable(who); 4550 if (!verified && mDrawables != null) { 4551 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4552 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom || 4553 who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd; 4554 } 4555 return verified; 4556 } 4557 4558 @Override 4559 public void jumpDrawablesToCurrentState() { 4560 super.jumpDrawablesToCurrentState(); 4561 if (mDrawables != null) { 4562 if (mDrawables.mDrawableLeft != null) { 4563 mDrawables.mDrawableLeft.jumpToCurrentState(); 4564 } 4565 if (mDrawables.mDrawableTop != null) { 4566 mDrawables.mDrawableTop.jumpToCurrentState(); 4567 } 4568 if (mDrawables.mDrawableRight != null) { 4569 mDrawables.mDrawableRight.jumpToCurrentState(); 4570 } 4571 if (mDrawables.mDrawableBottom != null) { 4572 mDrawables.mDrawableBottom.jumpToCurrentState(); 4573 } 4574 if (mDrawables.mDrawableStart != null) { 4575 mDrawables.mDrawableStart.jumpToCurrentState(); 4576 } 4577 if (mDrawables.mDrawableEnd != null) { 4578 mDrawables.mDrawableEnd.jumpToCurrentState(); 4579 } 4580 } 4581 } 4582 4583 @Override 4584 public void invalidateDrawable(Drawable drawable) { 4585 if (verifyDrawable(drawable)) { 4586 final Rect dirty = drawable.getBounds(); 4587 int scrollX = mScrollX; 4588 int scrollY = mScrollY; 4589 4590 // IMPORTANT: The coordinates below are based on the coordinates computed 4591 // for each compound drawable in onDraw(). Make sure to update each section 4592 // accordingly. 4593 final TextView.Drawables drawables = mDrawables; 4594 if (drawables != null) { 4595 if (drawable == drawables.mDrawableLeft) { 4596 final int compoundPaddingTop = getCompoundPaddingTop(); 4597 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4598 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4599 4600 scrollX += mPaddingLeft; 4601 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4602 } else if (drawable == drawables.mDrawableRight) { 4603 final int compoundPaddingTop = getCompoundPaddingTop(); 4604 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4605 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4606 4607 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4608 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4609 } else if (drawable == drawables.mDrawableTop) { 4610 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4611 final int compoundPaddingRight = getCompoundPaddingRight(); 4612 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4613 4614 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4615 scrollY += mPaddingTop; 4616 } else if (drawable == drawables.mDrawableBottom) { 4617 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4618 final int compoundPaddingRight = getCompoundPaddingRight(); 4619 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4620 4621 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4622 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4623 } 4624 } 4625 4626 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4627 dirty.right + scrollX, dirty.bottom + scrollY); 4628 } 4629 } 4630 4631 /** 4632 * @hide 4633 */ 4634 @Override 4635 public int getResolvedLayoutDirection(Drawable who) { 4636 if (who == null) return View.LAYOUT_DIRECTION_LTR; 4637 if (mDrawables != null) { 4638 final Drawables drawables = mDrawables; 4639 if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight || 4640 who == drawables.mDrawableTop || who == drawables.mDrawableBottom || 4641 who == drawables.mDrawableStart || who == drawables.mDrawableEnd) { 4642 return getResolvedLayoutDirection(); 4643 } 4644 } 4645 return super.getResolvedLayoutDirection(who); 4646 } 4647 4648 @Override 4649 protected boolean onSetAlpha(int alpha) { 4650 // Alpha is supported if and only if the drawing can be done in one pass. 4651 // TODO text with spans with a background color currently do not respect this alpha. 4652 if (getBackground() == null) { 4653 mCurrentAlpha = alpha; 4654 final Drawables dr = mDrawables; 4655 if (dr != null) { 4656 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4657 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4658 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4659 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4660 if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha); 4661 if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha); 4662 } 4663 return true; 4664 } 4665 4666 mCurrentAlpha = 255; 4667 return false; 4668 } 4669 4670 /** 4671 * When a TextView is used to display a useful piece of information to the user (such as a 4672 * contact's address), it should be made selectable, so that the user can select and copy this 4673 * content. 4674 * 4675 * Use {@link #setTextIsSelectable(boolean)} or the 4676 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4677 * selectable (text is not selectable by default). 4678 * 4679 * Note that this method simply returns the state of this flag. Although this flag has to be set 4680 * in order to select text in non-editable TextView, the content of an {@link EditText} can 4681 * always be selected, independently of the value of this flag. 4682 * 4683 * @return True if the text displayed in this TextView can be selected by the user. 4684 * 4685 * @attr ref android.R.styleable#TextView_textIsSelectable 4686 */ 4687 public boolean isTextSelectable() { 4688 return mTextIsSelectable; 4689 } 4690 4691 /** 4692 * Sets whether or not (default) the content of this view is selectable by the user. 4693 * 4694 * Note that this methods affect the {@link #setFocusable(boolean)}, 4695 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4696 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4697 * customized. 4698 * 4699 * See {@link #isTextSelectable} for details. 4700 * 4701 * @param selectable Whether or not the content of this TextView should be selectable. 4702 */ 4703 public void setTextIsSelectable(boolean selectable) { 4704 if (mTextIsSelectable == selectable) return; 4705 4706 mTextIsSelectable = selectable; 4707 4708 setFocusableInTouchMode(selectable); 4709 setFocusable(selectable); 4710 setClickable(selectable); 4711 setLongClickable(selectable); 4712 4713 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4714 4715 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4716 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4717 4718 // Called by setText above, but safer in case of future code changes 4719 prepareCursorControllers(); 4720 } 4721 4722 @Override 4723 protected int[] onCreateDrawableState(int extraSpace) { 4724 final int[] drawableState; 4725 4726 if (mSingleLine) { 4727 drawableState = super.onCreateDrawableState(extraSpace); 4728 } else { 4729 drawableState = super.onCreateDrawableState(extraSpace + 1); 4730 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4731 } 4732 4733 if (mTextIsSelectable) { 4734 // Disable pressed state, which was introduced when TextView was made clickable. 4735 // Prevents text color change. 4736 // setClickable(false) would have a similar effect, but it also disables focus changes 4737 // and long press actions, which are both needed by text selection. 4738 final int length = drawableState.length; 4739 for (int i = 0; i < length; i++) { 4740 if (drawableState[i] == R.attr.state_pressed) { 4741 final int[] nonPressedState = new int[length - 1]; 4742 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4743 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4744 return nonPressedState; 4745 } 4746 } 4747 } 4748 4749 return drawableState; 4750 } 4751 4752 @Override 4753 protected void onDraw(Canvas canvas) { 4754 if (mPreDrawState == PREDRAW_DONE) { 4755 final ViewTreeObserver observer = getViewTreeObserver(); 4756 observer.removeOnPreDrawListener(this); 4757 mPreDrawState = PREDRAW_NOT_REGISTERED; 4758 } 4759 4760 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4761 4762 restartMarqueeIfNeeded(); 4763 4764 // Draw the background for this view 4765 super.onDraw(canvas); 4766 4767 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4768 final int compoundPaddingTop = getCompoundPaddingTop(); 4769 final int compoundPaddingRight = getCompoundPaddingRight(); 4770 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4771 final int scrollX = mScrollX; 4772 final int scrollY = mScrollY; 4773 final int right = mRight; 4774 final int left = mLeft; 4775 final int bottom = mBottom; 4776 final int top = mTop; 4777 4778 final Drawables dr = mDrawables; 4779 if (dr != null) { 4780 /* 4781 * Compound, not extended, because the icon is not clipped 4782 * if the text height is smaller. 4783 */ 4784 4785 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4786 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4787 4788 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4789 // Make sure to update invalidateDrawable() when changing this code. 4790 if (dr.mDrawableLeft != null) { 4791 canvas.save(); 4792 canvas.translate(scrollX + mPaddingLeft, 4793 scrollY + compoundPaddingTop + 4794 (vspace - dr.mDrawableHeightLeft) / 2); 4795 dr.mDrawableLeft.draw(canvas); 4796 canvas.restore(); 4797 } 4798 4799 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4800 // Make sure to update invalidateDrawable() when changing this code. 4801 if (dr.mDrawableRight != null) { 4802 canvas.save(); 4803 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4804 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4805 dr.mDrawableRight.draw(canvas); 4806 canvas.restore(); 4807 } 4808 4809 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4810 // Make sure to update invalidateDrawable() when changing this code. 4811 if (dr.mDrawableTop != null) { 4812 canvas.save(); 4813 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4814 scrollY + mPaddingTop); 4815 dr.mDrawableTop.draw(canvas); 4816 canvas.restore(); 4817 } 4818 4819 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4820 // Make sure to update invalidateDrawable() when changing this code. 4821 if (dr.mDrawableBottom != null) { 4822 canvas.save(); 4823 canvas.translate(scrollX + compoundPaddingLeft + 4824 (hspace - dr.mDrawableWidthBottom) / 2, 4825 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4826 dr.mDrawableBottom.draw(canvas); 4827 canvas.restore(); 4828 } 4829 } 4830 4831 int color = mCurTextColor; 4832 4833 if (mLayout == null) { 4834 assumeLayout(); 4835 } 4836 4837 Layout layout = mLayout; 4838 int cursorcolor = color; 4839 4840 if (mHint != null && mText.length() == 0) { 4841 if (mHintTextColor != null) { 4842 color = mCurHintTextColor; 4843 } 4844 4845 layout = mHintLayout; 4846 } 4847 4848 mTextPaint.setColor(color); 4849 if (mCurrentAlpha != 255) { 4850 // If set, the alpha will override the color's alpha. Multiply the alphas. 4851 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4852 } 4853 mTextPaint.drawableState = getDrawableState(); 4854 4855 canvas.save(); 4856 /* Would be faster if we didn't have to do this. Can we chop the 4857 (displayable) text so that we don't need to do this ever? 4858 */ 4859 4860 int extendedPaddingTop = getExtendedPaddingTop(); 4861 int extendedPaddingBottom = getExtendedPaddingBottom(); 4862 4863 float clipLeft = compoundPaddingLeft + scrollX; 4864 float clipTop = extendedPaddingTop + scrollY; 4865 float clipRight = right - left - compoundPaddingRight + scrollX; 4866 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4867 4868 if (mShadowRadius != 0) { 4869 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4870 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4871 4872 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4873 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4874 } 4875 4876 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4877 4878 int voffsetText = 0; 4879 int voffsetCursor = 0; 4880 4881 // translate in by our padding 4882 { 4883 /* shortcircuit calling getVerticaOffset() */ 4884 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4885 voffsetText = getVerticalOffset(false); 4886 voffsetCursor = getVerticalOffset(true); 4887 } 4888 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4889 } 4890 4891 final int layoutDirection = getResolvedLayoutDirection(); 4892 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 4893 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 4894 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 4895 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4896 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4897 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4898 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4899 } 4900 4901 if (mMarquee != null && mMarquee.isRunning()) { 4902 canvas.translate(-mMarquee.mScroll, 0.0f); 4903 } 4904 } 4905 4906 Path highlight = null; 4907 int selStart = -1, selEnd = -1; 4908 boolean drawCursor = false; 4909 4910 // If there is no movement method, then there can be no selection. 4911 // Check that first and attempt to skip everything having to do with 4912 // the cursor. 4913 // XXX This is not strictly true -- a program could set the 4914 // selection manually if it really wanted to. 4915 if (mMovement != null && (isFocused() || isPressed())) { 4916 selStart = getSelectionStart(); 4917 selEnd = getSelectionEnd(); 4918 4919 if (selStart >= 0) { 4920 if (mHighlightPath == null) mHighlightPath = new Path(); 4921 4922 if (selStart == selEnd) { 4923 if (isCursorVisible() && 4924 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4925 if (mHighlightPathBogus) { 4926 mHighlightPath.reset(); 4927 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4928 updateCursorsPositions(); 4929 mHighlightPathBogus = false; 4930 } 4931 4932 // XXX should pass to skin instead of drawing directly 4933 mHighlightPaint.setColor(cursorcolor); 4934 if (mCurrentAlpha != 255) { 4935 mHighlightPaint.setAlpha( 4936 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4937 } 4938 mHighlightPaint.setStyle(Paint.Style.STROKE); 4939 highlight = mHighlightPath; 4940 drawCursor = mCursorCount > 0; 4941 } 4942 } else if (textCanBeSelected()) { 4943 if (mHighlightPathBogus) { 4944 mHighlightPath.reset(); 4945 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4946 mHighlightPathBogus = false; 4947 } 4948 4949 // XXX should pass to skin instead of drawing directly 4950 mHighlightPaint.setColor(mHighlightColor); 4951 if (mCurrentAlpha != 255) { 4952 mHighlightPaint.setAlpha( 4953 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4954 } 4955 mHighlightPaint.setStyle(Paint.Style.FILL); 4956 4957 highlight = mHighlightPath; 4958 } 4959 } 4960 } 4961 4962 /* Comment out until we decide what to do about animations 4963 boolean isLinearTextOn = false; 4964 if (currentTransformation != null) { 4965 isLinearTextOn = mTextPaint.isLinearTextOn(); 4966 Matrix m = currentTransformation.getMatrix(); 4967 if (!m.isIdentity()) { 4968 // mTextPaint.setLinearTextOn(true); 4969 } 4970 } 4971 */ 4972 4973 final InputMethodState ims = mInputMethodState; 4974 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4975 if (ims != null && ims.mBatchEditNesting == 0) { 4976 InputMethodManager imm = InputMethodManager.peekInstance(); 4977 if (imm != null) { 4978 if (imm.isActive(this)) { 4979 boolean reported = false; 4980 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4981 // We are in extract mode and the content has changed 4982 // in some way... just report complete new text to the 4983 // input method. 4984 reported = reportExtractedText(); 4985 } 4986 if (!reported && highlight != null) { 4987 int candStart = -1; 4988 int candEnd = -1; 4989 if (mText instanceof Spannable) { 4990 Spannable sp = (Spannable)mText; 4991 candStart = EditableInputConnection.getComposingSpanStart(sp); 4992 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4993 } 4994 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4995 } 4996 } 4997 4998 if (imm.isWatchingCursor(this) && highlight != null) { 4999 highlight.computeBounds(ims.mTmpRectF, true); 5000 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 5001 5002 canvas.getMatrix().mapPoints(ims.mTmpOffset); 5003 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 5004 5005 ims.mTmpRectF.offset(0, cursorOffsetVertical); 5006 5007 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 5008 (int)(ims.mTmpRectF.top + 0.5), 5009 (int)(ims.mTmpRectF.right + 0.5), 5010 (int)(ims.mTmpRectF.bottom + 0.5)); 5011 5012 imm.updateCursor(this, 5013 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 5014 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 5015 } 5016 } 5017 } 5018 5019 if (mCorrectionHighlighter != null) { 5020 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 5021 } 5022 5023 if (drawCursor) { 5024 drawCursor(canvas, cursorOffsetVertical); 5025 // Rely on the drawable entirely, do not draw the cursor line. 5026 // Has to be done after the IMM related code above which relies on the highlight. 5027 highlight = null; 5028 } 5029 5030 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5031 5032 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 5033 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 5034 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5035 } 5036 5037 /* Comment out until we decide what to do about animations 5038 if (currentTransformation != null) { 5039 mTextPaint.setLinearTextOn(isLinearTextOn); 5040 } 5041 */ 5042 5043 canvas.restore(); 5044 } 5045 5046 private void updateCursorsPositions() { 5047 if (mCursorDrawableRes == 0) { 5048 mCursorCount = 0; 5049 return; 5050 } 5051 5052 final int offset = getSelectionStart(); 5053 final int line = mLayout.getLineForOffset(offset); 5054 final int top = mLayout.getLineTop(line); 5055 final int bottom = mLayout.getLineTop(line + 1); 5056 5057 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 5058 5059 int middle = bottom; 5060 if (mCursorCount == 2) { 5061 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 5062 middle = (top + bottom) >> 1; 5063 } 5064 5065 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 5066 5067 if (mCursorCount == 2) { 5068 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 5069 } 5070 } 5071 5072 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 5073 if (mCursorDrawable[cursorIndex] == null) 5074 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 5075 5076 if (mTempRect == null) mTempRect = new Rect(); 5077 5078 mCursorDrawable[cursorIndex].getPadding(mTempRect); 5079 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 5080 horizontal = Math.max(0.5f, horizontal - 0.5f); 5081 final int left = (int) (horizontal) - mTempRect.left; 5082 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 5083 bottom + mTempRect.bottom); 5084 } 5085 5086 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 5087 final boolean translate = cursorOffsetVertical != 0; 5088 if (translate) canvas.translate(0, cursorOffsetVertical); 5089 for (int i = 0; i < mCursorCount; i++) { 5090 mCursorDrawable[i].draw(canvas); 5091 } 5092 if (translate) canvas.translate(0, -cursorOffsetVertical); 5093 } 5094 5095 @Override 5096 public void getFocusedRect(Rect r) { 5097 if (mLayout == null) { 5098 super.getFocusedRect(r); 5099 return; 5100 } 5101 5102 int selEnd = getSelectionEnd(); 5103 if (selEnd < 0) { 5104 super.getFocusedRect(r); 5105 return; 5106 } 5107 5108 int selStart = getSelectionStart(); 5109 if (selStart < 0 || selStart >= selEnd) { 5110 int line = mLayout.getLineForOffset(selEnd); 5111 r.top = mLayout.getLineTop(line); 5112 r.bottom = mLayout.getLineBottom(line); 5113 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 5114 r.right = r.left + 4; 5115 } else { 5116 int lineStart = mLayout.getLineForOffset(selStart); 5117 int lineEnd = mLayout.getLineForOffset(selEnd); 5118 r.top = mLayout.getLineTop(lineStart); 5119 r.bottom = mLayout.getLineBottom(lineEnd); 5120 if (lineStart == lineEnd) { 5121 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 5122 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 5123 } else { 5124 // Selection extends across multiple lines -- the focused 5125 // rect covers the entire width. 5126 if (mHighlightPath == null) mHighlightPath = new Path(); 5127 if (mHighlightPathBogus) { 5128 mHighlightPath.reset(); 5129 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 5130 mHighlightPathBogus = false; 5131 } 5132 synchronized (sTempRect) { 5133 mHighlightPath.computeBounds(sTempRect, true); 5134 r.left = (int)sTempRect.left-1; 5135 r.right = (int)sTempRect.right+1; 5136 } 5137 } 5138 } 5139 5140 // Adjust for padding and gravity. 5141 int paddingLeft = getCompoundPaddingLeft(); 5142 int paddingTop = getExtendedPaddingTop(); 5143 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5144 paddingTop += getVerticalOffset(false); 5145 } 5146 r.offset(paddingLeft, paddingTop); 5147 } 5148 5149 /** 5150 * Return the number of lines of text, or 0 if the internal Layout has not 5151 * been built. 5152 */ 5153 public int getLineCount() { 5154 return mLayout != null ? mLayout.getLineCount() : 0; 5155 } 5156 5157 /** 5158 * Return the baseline for the specified line (0...getLineCount() - 1) 5159 * If bounds is not null, return the top, left, right, bottom extents 5160 * of the specified line in it. If the internal Layout has not been built, 5161 * return 0 and set bounds to (0, 0, 0, 0) 5162 * @param line which line to examine (0..getLineCount() - 1) 5163 * @param bounds Optional. If not null, it returns the extent of the line 5164 * @return the Y-coordinate of the baseline 5165 */ 5166 public int getLineBounds(int line, Rect bounds) { 5167 if (mLayout == null) { 5168 if (bounds != null) { 5169 bounds.set(0, 0, 0, 0); 5170 } 5171 return 0; 5172 } 5173 else { 5174 int baseline = mLayout.getLineBounds(line, bounds); 5175 5176 int voffset = getExtendedPaddingTop(); 5177 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5178 voffset += getVerticalOffset(true); 5179 } 5180 if (bounds != null) { 5181 bounds.offset(getCompoundPaddingLeft(), voffset); 5182 } 5183 return baseline + voffset; 5184 } 5185 } 5186 5187 @Override 5188 public int getBaseline() { 5189 if (mLayout == null) { 5190 return super.getBaseline(); 5191 } 5192 5193 int voffset = 0; 5194 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5195 voffset = getVerticalOffset(true); 5196 } 5197 5198 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 5199 } 5200 5201 /** 5202 * @hide 5203 * @param offsetRequired 5204 */ 5205 @Override 5206 protected int getFadeTop(boolean offsetRequired) { 5207 if (mLayout == null) return 0; 5208 5209 int voffset = 0; 5210 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5211 voffset = getVerticalOffset(true); 5212 } 5213 5214 if (offsetRequired) voffset += getTopPaddingOffset(); 5215 5216 return getExtendedPaddingTop() + voffset; 5217 } 5218 5219 /** 5220 * @hide 5221 * @param offsetRequired 5222 */ 5223 @Override 5224 protected int getFadeHeight(boolean offsetRequired) { 5225 return mLayout != null ? mLayout.getHeight() : 0; 5226 } 5227 5228 @Override 5229 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5230 if (keyCode == KeyEvent.KEYCODE_BACK) { 5231 boolean isInSelectionMode = mSelectionActionMode != null; 5232 5233 if (isInSelectionMode) { 5234 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 5235 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5236 if (state != null) { 5237 state.startTracking(event, this); 5238 } 5239 return true; 5240 } else if (event.getAction() == KeyEvent.ACTION_UP) { 5241 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5242 if (state != null) { 5243 state.handleUpEvent(event); 5244 } 5245 if (event.isTracking() && !event.isCanceled()) { 5246 if (isInSelectionMode) { 5247 stopSelectionActionMode(); 5248 return true; 5249 } 5250 } 5251 } 5252 } 5253 } 5254 return super.onKeyPreIme(keyCode, event); 5255 } 5256 5257 @Override 5258 public boolean onKeyDown(int keyCode, KeyEvent event) { 5259 int which = doKeyDown(keyCode, event, null); 5260 if (which == 0) { 5261 // Go through default dispatching. 5262 return super.onKeyDown(keyCode, event); 5263 } 5264 5265 return true; 5266 } 5267 5268 @Override 5269 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5270 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 5271 5272 int which = doKeyDown(keyCode, down, event); 5273 if (which == 0) { 5274 // Go through default dispatching. 5275 return super.onKeyMultiple(keyCode, repeatCount, event); 5276 } 5277 if (which == -1) { 5278 // Consumed the whole thing. 5279 return true; 5280 } 5281 5282 repeatCount--; 5283 5284 // We are going to dispatch the remaining events to either the input 5285 // or movement method. To do this, we will just send a repeated stream 5286 // of down and up events until we have done the complete repeatCount. 5287 // It would be nice if those interfaces had an onKeyMultiple() method, 5288 // but adding that is a more complicated change. 5289 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 5290 if (which == 1) { 5291 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5292 while (--repeatCount > 0) { 5293 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 5294 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5295 } 5296 hideErrorIfUnchanged(); 5297 5298 } else if (which == 2) { 5299 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5300 while (--repeatCount > 0) { 5301 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 5302 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5303 } 5304 } 5305 5306 return true; 5307 } 5308 5309 /** 5310 * Returns true if pressing ENTER in this field advances focus instead 5311 * of inserting the character. This is true mostly in single-line fields, 5312 * but also in mail addresses and subjects which will display on multiple 5313 * lines but where it doesn't make sense to insert newlines. 5314 */ 5315 private boolean shouldAdvanceFocusOnEnter() { 5316 if (mInput == null) { 5317 return false; 5318 } 5319 5320 if (mSingleLine) { 5321 return true; 5322 } 5323 5324 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5325 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5326 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 5327 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 5328 return true; 5329 } 5330 } 5331 5332 return false; 5333 } 5334 5335 /** 5336 * Returns true if pressing TAB in this field advances focus instead 5337 * of inserting the character. Insert tabs only in multi-line editors. 5338 */ 5339 private boolean shouldAdvanceFocusOnTab() { 5340 if (mInput != null && !mSingleLine) { 5341 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5342 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5343 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 5344 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 5345 return false; 5346 } 5347 } 5348 } 5349 return true; 5350 } 5351 5352 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 5353 if (!isEnabled()) { 5354 return 0; 5355 } 5356 5357 switch (keyCode) { 5358 case KeyEvent.KEYCODE_ENTER: 5359 mEnterKeyIsDown = true; 5360 if (event.hasNoModifiers()) { 5361 // When mInputContentType is set, we know that we are 5362 // running in a "modern" cupcake environment, so don't need 5363 // to worry about the application trying to capture 5364 // enter key events. 5365 if (mInputContentType != null) { 5366 // If there is an action listener, given them a 5367 // chance to consume the event. 5368 if (mInputContentType.onEditorActionListener != null && 5369 mInputContentType.onEditorActionListener.onEditorAction( 5370 this, EditorInfo.IME_NULL, event)) { 5371 mInputContentType.enterDown = true; 5372 // We are consuming the enter key for them. 5373 return -1; 5374 } 5375 } 5376 5377 // If our editor should move focus when enter is pressed, or 5378 // this is a generated event from an IME action button, then 5379 // don't let it be inserted into the text. 5380 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5381 || shouldAdvanceFocusOnEnter()) { 5382 if (hasOnClickListeners()) { 5383 return 0; 5384 } 5385 return -1; 5386 } 5387 } 5388 break; 5389 5390 case KeyEvent.KEYCODE_DPAD_CENTER: 5391 mDPadCenterIsDown = true; 5392 if (event.hasNoModifiers()) { 5393 if (shouldAdvanceFocusOnEnter()) { 5394 return 0; 5395 } 5396 } 5397 break; 5398 5399 case KeyEvent.KEYCODE_TAB: 5400 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 5401 if (shouldAdvanceFocusOnTab()) { 5402 return 0; 5403 } 5404 } 5405 break; 5406 5407 // Has to be done on key down (and not on key up) to correctly be intercepted. 5408 case KeyEvent.KEYCODE_BACK: 5409 if (mSelectionActionMode != null) { 5410 stopSelectionActionMode(); 5411 return -1; 5412 } 5413 break; 5414 } 5415 5416 if (mInput != null) { 5417 resetErrorChangedFlag(); 5418 5419 boolean doDown = true; 5420 if (otherEvent != null) { 5421 try { 5422 beginBatchEdit(); 5423 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 5424 hideErrorIfUnchanged(); 5425 doDown = false; 5426 if (handled) { 5427 return -1; 5428 } 5429 } catch (AbstractMethodError e) { 5430 // onKeyOther was added after 1.0, so if it isn't 5431 // implemented we need to try to dispatch as a regular down. 5432 } finally { 5433 endBatchEdit(); 5434 } 5435 } 5436 5437 if (doDown) { 5438 beginBatchEdit(); 5439 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 5440 endBatchEdit(); 5441 hideErrorIfUnchanged(); 5442 if (handled) return 1; 5443 } 5444 } 5445 5446 // bug 650865: sometimes we get a key event before a layout. 5447 // don't try to move around if we don't know the layout. 5448 5449 if (mMovement != null && mLayout != null) { 5450 boolean doDown = true; 5451 if (otherEvent != null) { 5452 try { 5453 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 5454 otherEvent); 5455 doDown = false; 5456 if (handled) { 5457 return -1; 5458 } 5459 } catch (AbstractMethodError e) { 5460 // onKeyOther was added after 1.0, so if it isn't 5461 // implemented we need to try to dispatch as a regular down. 5462 } 5463 } 5464 if (doDown) { 5465 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 5466 return 2; 5467 } 5468 } 5469 5470 return 0; 5471 } 5472 5473 /** 5474 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 5475 * can be recorded. 5476 * @hide 5477 */ 5478 public void resetErrorChangedFlag() { 5479 /* 5480 * Keep track of what the error was before doing the input 5481 * so that if an input filter changed the error, we leave 5482 * that error showing. Otherwise, we take down whatever 5483 * error was showing when the user types something. 5484 */ 5485 mErrorWasChanged = false; 5486 } 5487 5488 /** 5489 * @hide 5490 */ 5491 public void hideErrorIfUnchanged() { 5492 if (mError != null && !mErrorWasChanged) { 5493 setError(null, null); 5494 } 5495 } 5496 5497 @Override 5498 public boolean onKeyUp(int keyCode, KeyEvent event) { 5499 if (!isEnabled()) { 5500 return super.onKeyUp(keyCode, event); 5501 } 5502 5503 switch (keyCode) { 5504 case KeyEvent.KEYCODE_DPAD_CENTER: 5505 mDPadCenterIsDown = false; 5506 if (event.hasNoModifiers()) { 5507 /* 5508 * If there is a click listener, just call through to 5509 * super, which will invoke it. 5510 * 5511 * If there isn't a click listener, try to show the soft 5512 * input method. (It will also 5513 * call performClick(), but that won't do anything in 5514 * this case.) 5515 */ 5516 if (hasOnClickListeners()) { 5517 if (mMovement != null && mText instanceof Editable 5518 && mLayout != null && onCheckIsTextEditor()) { 5519 InputMethodManager imm = InputMethodManager.peekInstance(); 5520 viewClicked(imm); 5521 if (imm != null && mSoftInputShownOnFocus) { 5522 imm.showSoftInput(this, 0); 5523 } 5524 } 5525 } 5526 } 5527 return super.onKeyUp(keyCode, event); 5528 5529 case KeyEvent.KEYCODE_ENTER: 5530 mEnterKeyIsDown = false; 5531 if (event.hasNoModifiers()) { 5532 if (mInputContentType != null 5533 && mInputContentType.onEditorActionListener != null 5534 && mInputContentType.enterDown) { 5535 mInputContentType.enterDown = false; 5536 if (mInputContentType.onEditorActionListener.onEditorAction( 5537 this, EditorInfo.IME_NULL, event)) { 5538 return true; 5539 } 5540 } 5541 5542 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5543 || shouldAdvanceFocusOnEnter()) { 5544 /* 5545 * If there is a click listener, just call through to 5546 * super, which will invoke it. 5547 * 5548 * If there isn't a click listener, try to advance focus, 5549 * but still call through to super, which will reset the 5550 * pressed state and longpress state. (It will also 5551 * call performClick(), but that won't do anything in 5552 * this case.) 5553 */ 5554 if (hasOnClickListeners()) { 5555 View v = focusSearch(FOCUS_DOWN); 5556 5557 if (v != null) { 5558 if (!v.requestFocus(FOCUS_DOWN)) { 5559 throw new IllegalStateException( 5560 "focus search returned a view " + 5561 "that wasn't able to take focus!"); 5562 } 5563 5564 /* 5565 * Return true because we handled the key; super 5566 * will return false because there was no click 5567 * listener. 5568 */ 5569 super.onKeyUp(keyCode, event); 5570 return true; 5571 } else if ((event.getFlags() 5572 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 5573 // No target for next focus, but make sure the IME 5574 // if this came from it. 5575 InputMethodManager imm = InputMethodManager.peekInstance(); 5576 if (imm != null && imm.isActive(this)) { 5577 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5578 } 5579 } 5580 } 5581 } 5582 return super.onKeyUp(keyCode, event); 5583 } 5584 break; 5585 } 5586 5587 if (mInput != null) 5588 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 5589 return true; 5590 5591 if (mMovement != null && mLayout != null) 5592 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5593 return true; 5594 5595 return super.onKeyUp(keyCode, event); 5596 } 5597 5598 @Override public boolean onCheckIsTextEditor() { 5599 return mInputType != EditorInfo.TYPE_NULL; 5600 } 5601 5602 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5603 if (onCheckIsTextEditor() && isEnabled()) { 5604 if (mInputMethodState == null) { 5605 mInputMethodState = new InputMethodState(); 5606 } 5607 outAttrs.inputType = mInputType; 5608 if (mInputContentType != null) { 5609 outAttrs.imeOptions = mInputContentType.imeOptions; 5610 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 5611 outAttrs.actionLabel = mInputContentType.imeActionLabel; 5612 outAttrs.actionId = mInputContentType.imeActionId; 5613 outAttrs.extras = mInputContentType.extras; 5614 } else { 5615 outAttrs.imeOptions = EditorInfo.IME_NULL; 5616 } 5617 if (focusSearch(FOCUS_DOWN) != null) { 5618 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5619 } 5620 if (focusSearch(FOCUS_UP) != null) { 5621 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5622 } 5623 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5624 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5625 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5626 // An action has not been set, but the enter key will move to 5627 // the next focus, so set the action to that. 5628 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5629 } else { 5630 // An action has not been set, and there is no focus to move 5631 // to, so let's just supply a "done" action. 5632 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5633 } 5634 if (!shouldAdvanceFocusOnEnter()) { 5635 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5636 } 5637 } 5638 if (isMultilineInputType(outAttrs.inputType)) { 5639 // Multi-line text editors should always show an enter key. 5640 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5641 } 5642 outAttrs.hintText = mHint; 5643 if (mText instanceof Editable) { 5644 InputConnection ic = new EditableInputConnection(this); 5645 outAttrs.initialSelStart = getSelectionStart(); 5646 outAttrs.initialSelEnd = getSelectionEnd(); 5647 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5648 return ic; 5649 } 5650 } 5651 return null; 5652 } 5653 5654 /** 5655 * If this TextView contains editable content, extract a portion of it 5656 * based on the information in <var>request</var> in to <var>outText</var>. 5657 * @return Returns true if the text was successfully extracted, else false. 5658 */ 5659 public boolean extractText(ExtractedTextRequest request, 5660 ExtractedText outText) { 5661 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5662 EXTRACT_UNKNOWN, outText); 5663 } 5664 5665 static final int EXTRACT_NOTHING = -2; 5666 static final int EXTRACT_UNKNOWN = -1; 5667 5668 boolean extractTextInternal(ExtractedTextRequest request, 5669 int partialStartOffset, int partialEndOffset, int delta, 5670 ExtractedText outText) { 5671 final CharSequence content = mText; 5672 if (content != null) { 5673 if (partialStartOffset != EXTRACT_NOTHING) { 5674 final int N = content.length(); 5675 if (partialStartOffset < 0) { 5676 outText.partialStartOffset = outText.partialEndOffset = -1; 5677 partialStartOffset = 0; 5678 partialEndOffset = N; 5679 } else { 5680 // Now use the delta to determine the actual amount of text 5681 // we need. 5682 partialEndOffset += delta; 5683 // Adjust offsets to ensure we contain full spans. 5684 if (content instanceof Spanned) { 5685 Spanned spanned = (Spanned)content; 5686 Object[] spans = spanned.getSpans(partialStartOffset, 5687 partialEndOffset, ParcelableSpan.class); 5688 int i = spans.length; 5689 while (i > 0) { 5690 i--; 5691 int j = spanned.getSpanStart(spans[i]); 5692 if (j < partialStartOffset) partialStartOffset = j; 5693 j = spanned.getSpanEnd(spans[i]); 5694 if (j > partialEndOffset) partialEndOffset = j; 5695 } 5696 } 5697 outText.partialStartOffset = partialStartOffset; 5698 outText.partialEndOffset = partialEndOffset - delta; 5699 5700 if (partialStartOffset > N) { 5701 partialStartOffset = N; 5702 } else if (partialStartOffset < 0) { 5703 partialStartOffset = 0; 5704 } 5705 if (partialEndOffset > N) { 5706 partialEndOffset = N; 5707 } else if (partialEndOffset < 0) { 5708 partialEndOffset = 0; 5709 } 5710 } 5711 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5712 outText.text = content.subSequence(partialStartOffset, 5713 partialEndOffset); 5714 } else { 5715 outText.text = TextUtils.substring(content, partialStartOffset, 5716 partialEndOffset); 5717 } 5718 } else { 5719 outText.partialStartOffset = 0; 5720 outText.partialEndOffset = 0; 5721 outText.text = ""; 5722 } 5723 outText.flags = 0; 5724 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5725 outText.flags |= ExtractedText.FLAG_SELECTING; 5726 } 5727 if (mSingleLine) { 5728 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5729 } 5730 outText.startOffset = 0; 5731 outText.selectionStart = getSelectionStart(); 5732 outText.selectionEnd = getSelectionEnd(); 5733 return true; 5734 } 5735 return false; 5736 } 5737 5738 boolean reportExtractedText() { 5739 final InputMethodState ims = mInputMethodState; 5740 if (ims != null) { 5741 final boolean contentChanged = ims.mContentChanged; 5742 if (contentChanged || ims.mSelectionModeChanged) { 5743 ims.mContentChanged = false; 5744 ims.mSelectionModeChanged = false; 5745 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5746 if (req != null) { 5747 InputMethodManager imm = InputMethodManager.peekInstance(); 5748 if (imm != null) { 5749 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5750 + ims.mChangedStart + " end=" + ims.mChangedEnd 5751 + " delta=" + ims.mChangedDelta); 5752 if (ims.mChangedStart < 0 && !contentChanged) { 5753 ims.mChangedStart = EXTRACT_NOTHING; 5754 } 5755 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5756 ims.mChangedDelta, ims.mTmpExtracted)) { 5757 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5758 + ims.mTmpExtracted.partialStartOffset 5759 + " end=" + ims.mTmpExtracted.partialEndOffset 5760 + ": " + ims.mTmpExtracted.text); 5761 imm.updateExtractedText(this, req.token, 5762 mInputMethodState.mTmpExtracted); 5763 ims.mChangedStart = EXTRACT_UNKNOWN; 5764 ims.mChangedEnd = EXTRACT_UNKNOWN; 5765 ims.mChangedDelta = 0; 5766 ims.mContentChanged = false; 5767 return true; 5768 } 5769 } 5770 } 5771 } 5772 } 5773 return false; 5774 } 5775 5776 /** 5777 * This is used to remove all style-impacting spans from text before new 5778 * extracted text is being replaced into it, so that we don't have any 5779 * lingering spans applied during the replace. 5780 */ 5781 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5782 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5783 int i = spans.length; 5784 while (i > 0) { 5785 i--; 5786 spannable.removeSpan(spans[i]); 5787 } 5788 } 5789 5790 /** 5791 * Apply to this text view the given extracted text, as previously 5792 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5793 */ 5794 public void setExtractedText(ExtractedText text) { 5795 Editable content = getEditableText(); 5796 if (text.text != null) { 5797 if (content == null) { 5798 setText(text.text, TextView.BufferType.EDITABLE); 5799 } else if (text.partialStartOffset < 0) { 5800 removeParcelableSpans(content, 0, content.length()); 5801 content.replace(0, content.length(), text.text); 5802 } else { 5803 final int N = content.length(); 5804 int start = text.partialStartOffset; 5805 if (start > N) start = N; 5806 int end = text.partialEndOffset; 5807 if (end > N) end = N; 5808 removeParcelableSpans(content, start, end); 5809 content.replace(start, end, text.text); 5810 } 5811 } 5812 5813 // Now set the selection position... make sure it is in range, to 5814 // avoid crashes. If this is a partial update, it is possible that 5815 // the underlying text may have changed, causing us problems here. 5816 // Also we just don't want to trust clients to do the right thing. 5817 Spannable sp = (Spannable)getText(); 5818 final int N = sp.length(); 5819 int start = text.selectionStart; 5820 if (start < 0) start = 0; 5821 else if (start > N) start = N; 5822 int end = text.selectionEnd; 5823 if (end < 0) end = 0; 5824 else if (end > N) end = N; 5825 Selection.setSelection(sp, start, end); 5826 5827 // Finally, update the selection mode. 5828 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5829 MetaKeyKeyListener.startSelecting(this, sp); 5830 } else { 5831 MetaKeyKeyListener.stopSelecting(this, sp); 5832 } 5833 } 5834 5835 /** 5836 * @hide 5837 */ 5838 public void setExtracting(ExtractedTextRequest req) { 5839 if (mInputMethodState != null) { 5840 mInputMethodState.mExtracting = req; 5841 } 5842 // This would stop a possible selection mode, but no such mode is started in case 5843 // extracted mode will start. Some text is selected though, and will trigger an action mode 5844 // in the extracted view. 5845 hideControllers(); 5846 } 5847 5848 /** 5849 * Called by the framework in response to a text completion from 5850 * the current input method, provided by it calling 5851 * {@link InputConnection#commitCompletion 5852 * InputConnection.commitCompletion()}. The default implementation does 5853 * nothing; text views that are supporting auto-completion should override 5854 * this to do their desired behavior. 5855 * 5856 * @param text The auto complete text the user has selected. 5857 */ 5858 public void onCommitCompletion(CompletionInfo text) { 5859 // intentionally empty 5860 } 5861 5862 /** 5863 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5864 * a dictionnary) from the current input method, provided by it calling 5865 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5866 * implementation flashes the background of the corrected word to provide feedback to the user. 5867 * 5868 * @param info The auto correct info about the text that was corrected. 5869 */ 5870 public void onCommitCorrection(CorrectionInfo info) { 5871 if (mCorrectionHighlighter == null) { 5872 mCorrectionHighlighter = new CorrectionHighlighter(); 5873 } else { 5874 mCorrectionHighlighter.invalidate(false); 5875 } 5876 5877 mCorrectionHighlighter.highlight(info); 5878 } 5879 5880 private class CorrectionHighlighter { 5881 private final Path mPath = new Path(); 5882 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5883 private int mStart, mEnd; 5884 private long mFadingStartTime; 5885 private final static int FADE_OUT_DURATION = 400; 5886 5887 public CorrectionHighlighter() { 5888 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5889 mPaint.setStyle(Paint.Style.FILL); 5890 } 5891 5892 public void highlight(CorrectionInfo info) { 5893 mStart = info.getOffset(); 5894 mEnd = mStart + info.getNewText().length(); 5895 mFadingStartTime = SystemClock.uptimeMillis(); 5896 5897 if (mStart < 0 || mEnd < 0) { 5898 stopAnimation(); 5899 } 5900 } 5901 5902 public void draw(Canvas canvas, int cursorOffsetVertical) { 5903 if (updatePath() && updatePaint()) { 5904 if (cursorOffsetVertical != 0) { 5905 canvas.translate(0, cursorOffsetVertical); 5906 } 5907 5908 canvas.drawPath(mPath, mPaint); 5909 5910 if (cursorOffsetVertical != 0) { 5911 canvas.translate(0, -cursorOffsetVertical); 5912 } 5913 invalidate(true); 5914 } else { 5915 stopAnimation(); 5916 invalidate(false); 5917 } 5918 } 5919 5920 private boolean updatePaint() { 5921 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5922 if (duration > FADE_OUT_DURATION) return false; 5923 5924 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5925 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5926 final int color = (mHighlightColor & 0x00FFFFFF) + 5927 ((int) (highlightColorAlpha * coef) << 24); 5928 mPaint.setColor(color); 5929 return true; 5930 } 5931 5932 private boolean updatePath() { 5933 final Layout layout = TextView.this.mLayout; 5934 if (layout == null) return false; 5935 5936 // Update in case text is edited while the animation is run 5937 final int length = mText.length(); 5938 int start = Math.min(length, mStart); 5939 int end = Math.min(length, mEnd); 5940 5941 mPath.reset(); 5942 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5943 return true; 5944 } 5945 5946 private void invalidate(boolean delayed) { 5947 if (TextView.this.mLayout == null) return; 5948 5949 synchronized (sTempRect) { 5950 mPath.computeBounds(sTempRect, false); 5951 5952 int left = getCompoundPaddingLeft(); 5953 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5954 5955 if (delayed) { 5956 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5957 left + (int) sTempRect.left, top + (int) sTempRect.top, 5958 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5959 } else { 5960 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5961 (int) sTempRect.right, (int) sTempRect.bottom); 5962 } 5963 } 5964 } 5965 5966 private void stopAnimation() { 5967 TextView.this.mCorrectionHighlighter = null; 5968 } 5969 } 5970 5971 public void beginBatchEdit() { 5972 mInBatchEditControllers = true; 5973 final InputMethodState ims = mInputMethodState; 5974 if (ims != null) { 5975 int nesting = ++ims.mBatchEditNesting; 5976 if (nesting == 1) { 5977 ims.mCursorChanged = false; 5978 ims.mChangedDelta = 0; 5979 if (ims.mContentChanged) { 5980 // We already have a pending change from somewhere else, 5981 // so turn this into a full update. 5982 ims.mChangedStart = 0; 5983 ims.mChangedEnd = mText.length(); 5984 } else { 5985 ims.mChangedStart = EXTRACT_UNKNOWN; 5986 ims.mChangedEnd = EXTRACT_UNKNOWN; 5987 ims.mContentChanged = false; 5988 } 5989 onBeginBatchEdit(); 5990 } 5991 } 5992 } 5993 5994 public void endBatchEdit() { 5995 mInBatchEditControllers = false; 5996 final InputMethodState ims = mInputMethodState; 5997 if (ims != null) { 5998 int nesting = --ims.mBatchEditNesting; 5999 if (nesting == 0) { 6000 finishBatchEdit(ims); 6001 } 6002 } 6003 } 6004 6005 void ensureEndedBatchEdit() { 6006 final InputMethodState ims = mInputMethodState; 6007 if (ims != null && ims.mBatchEditNesting != 0) { 6008 ims.mBatchEditNesting = 0; 6009 finishBatchEdit(ims); 6010 } 6011 } 6012 6013 void finishBatchEdit(final InputMethodState ims) { 6014 onEndBatchEdit(); 6015 6016 if (ims.mContentChanged || ims.mSelectionModeChanged) { 6017 updateAfterEdit(); 6018 reportExtractedText(); 6019 } else if (ims.mCursorChanged) { 6020 // Cheezy way to get us to report the current cursor location. 6021 invalidateCursor(); 6022 } 6023 } 6024 6025 void updateAfterEdit() { 6026 invalidate(); 6027 int curs = getSelectionStart(); 6028 6029 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6030 registerForPreDraw(); 6031 } 6032 6033 if (curs >= 0) { 6034 mHighlightPathBogus = true; 6035 makeBlink(); 6036 bringPointIntoView(curs); 6037 } 6038 6039 checkForResize(); 6040 } 6041 6042 /** 6043 * Called by the framework in response to a request to begin a batch 6044 * of edit operations through a call to link {@link #beginBatchEdit()}. 6045 */ 6046 public void onBeginBatchEdit() { 6047 // intentionally empty 6048 } 6049 6050 /** 6051 * Called by the framework in response to a request to end a batch 6052 * of edit operations through a call to link {@link #endBatchEdit}. 6053 */ 6054 public void onEndBatchEdit() { 6055 // intentionally empty 6056 } 6057 6058 /** 6059 * Called by the framework in response to a private command from the 6060 * current method, provided by it calling 6061 * {@link InputConnection#performPrivateCommand 6062 * InputConnection.performPrivateCommand()}. 6063 * 6064 * @param action The action name of the command. 6065 * @param data Any additional data for the command. This may be null. 6066 * @return Return true if you handled the command, else false. 6067 */ 6068 public boolean onPrivateIMECommand(String action, Bundle data) { 6069 return false; 6070 } 6071 6072 private void nullLayouts() { 6073 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 6074 mSavedLayout = (BoringLayout) mLayout; 6075 } 6076 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 6077 mSavedHintLayout = (BoringLayout) mHintLayout; 6078 } 6079 6080 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 6081 6082 mBoring = mHintBoring = null; 6083 6084 // Since it depends on the value of mLayout 6085 prepareCursorControllers(); 6086 } 6087 6088 /** 6089 * Make a new Layout based on the already-measured size of the view, 6090 * on the assumption that it was measured correctly at some point. 6091 */ 6092 private void assumeLayout() { 6093 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6094 6095 if (width < 1) { 6096 width = 0; 6097 } 6098 6099 int physicalWidth = width; 6100 6101 if (mHorizontallyScrolling) { 6102 width = VERY_WIDE; 6103 } 6104 6105 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 6106 physicalWidth, false); 6107 } 6108 6109 @Override 6110 protected void resetResolvedLayoutDirection() { 6111 super.resetResolvedLayoutDirection(); 6112 6113 if (mLayoutAlignment != null && 6114 (mTextAlign == TextAlign.VIEW_START || 6115 mTextAlign == TextAlign.VIEW_END)) { 6116 mLayoutAlignment = null; 6117 } 6118 } 6119 6120 private Layout.Alignment getLayoutAlignment() { 6121 if (mLayoutAlignment == null) { 6122 Layout.Alignment alignment; 6123 TextAlign textAlign = mTextAlign; 6124 switch (textAlign) { 6125 case INHERIT: 6126 // fall through to gravity temporarily 6127 // intention is to inherit value through view hierarchy. 6128 case GRAVITY: 6129 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 6130 case Gravity.START: 6131 alignment = Layout.Alignment.ALIGN_NORMAL; 6132 break; 6133 case Gravity.END: 6134 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6135 break; 6136 case Gravity.LEFT: 6137 alignment = Layout.Alignment.ALIGN_LEFT; 6138 break; 6139 case Gravity.RIGHT: 6140 alignment = Layout.Alignment.ALIGN_RIGHT; 6141 break; 6142 case Gravity.CENTER_HORIZONTAL: 6143 alignment = Layout.Alignment.ALIGN_CENTER; 6144 break; 6145 default: 6146 alignment = Layout.Alignment.ALIGN_NORMAL; 6147 break; 6148 } 6149 break; 6150 case TEXT_START: 6151 alignment = Layout.Alignment.ALIGN_NORMAL; 6152 break; 6153 case TEXT_END: 6154 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6155 break; 6156 case CENTER: 6157 alignment = Layout.Alignment.ALIGN_CENTER; 6158 break; 6159 case VIEW_START: 6160 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6161 Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 6162 break; 6163 case VIEW_END: 6164 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6165 Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 6166 break; 6167 default: 6168 alignment = Layout.Alignment.ALIGN_NORMAL; 6169 break; 6170 } 6171 mLayoutAlignment = alignment; 6172 } 6173 return mLayoutAlignment; 6174 } 6175 6176 /** 6177 * The width passed in is now the desired layout width, 6178 * not the full view width with padding. 6179 * {@hide} 6180 */ 6181 protected void makeNewLayout(int wantWidth, int hintWidth, 6182 BoringLayout.Metrics boring, 6183 BoringLayout.Metrics hintBoring, 6184 int ellipsisWidth, boolean bringIntoView) { 6185 stopMarquee(); 6186 6187 // Update "old" cached values 6188 mOldMaximum = mMaximum; 6189 mOldMaxMode = mMaxMode; 6190 6191 mHighlightPathBogus = true; 6192 6193 if (wantWidth < 0) { 6194 wantWidth = 0; 6195 } 6196 if (hintWidth < 0) { 6197 hintWidth = 0; 6198 } 6199 6200 Layout.Alignment alignment = getLayoutAlignment(); 6201 boolean shouldEllipsize = mEllipsize != null && mInput == null; 6202 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE && 6203 mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 6204 TruncateAt effectiveEllipsize = mEllipsize; 6205 if (mEllipsize == TruncateAt.MARQUEE && 6206 mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 6207 effectiveEllipsize = TruncateAt.END_SMALL; 6208 } 6209 6210 if (mTextDir == null) { 6211 resolveTextDirection(); 6212 } 6213 6214 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 6215 effectiveEllipsize, effectiveEllipsize == mEllipsize); 6216 if (switchEllipsize) { 6217 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ? 6218 TruncateAt.END : TruncateAt.MARQUEE; 6219 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 6220 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 6221 } 6222 6223 shouldEllipsize = mEllipsize != null; 6224 mHintLayout = null; 6225 6226 if (mHint != null) { 6227 if (shouldEllipsize) hintWidth = wantWidth; 6228 6229 if (hintBoring == UNKNOWN_BORING) { 6230 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 6231 mHintBoring); 6232 if (hintBoring != null) { 6233 mHintBoring = hintBoring; 6234 } 6235 } 6236 6237 if (hintBoring != null) { 6238 if (hintBoring.width <= hintWidth && 6239 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 6240 if (mSavedHintLayout != null) { 6241 mHintLayout = mSavedHintLayout. 6242 replaceOrMake(mHint, mTextPaint, 6243 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6244 hintBoring, mIncludePad); 6245 } else { 6246 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6247 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6248 hintBoring, mIncludePad); 6249 } 6250 6251 mSavedHintLayout = (BoringLayout) mHintLayout; 6252 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 6253 if (mSavedHintLayout != null) { 6254 mHintLayout = mSavedHintLayout. 6255 replaceOrMake(mHint, mTextPaint, 6256 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6257 hintBoring, mIncludePad, mEllipsize, 6258 ellipsisWidth); 6259 } else { 6260 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6261 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6262 hintBoring, mIncludePad, mEllipsize, 6263 ellipsisWidth); 6264 } 6265 } else if (shouldEllipsize) { 6266 mHintLayout = new StaticLayout(mHint, 6267 0, mHint.length(), 6268 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6269 mSpacingAdd, mIncludePad, mEllipsize, 6270 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6271 } else { 6272 mHintLayout = new StaticLayout(mHint, mTextPaint, 6273 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6274 mIncludePad); 6275 } 6276 } else if (shouldEllipsize) { 6277 mHintLayout = new StaticLayout(mHint, 6278 0, mHint.length(), 6279 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6280 mSpacingAdd, mIncludePad, mEllipsize, 6281 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6282 } else { 6283 mHintLayout = new StaticLayout(mHint, mTextPaint, 6284 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6285 mIncludePad); 6286 } 6287 } 6288 6289 if (bringIntoView) { 6290 registerForPreDraw(); 6291 } 6292 6293 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6294 if (!compressText(ellipsisWidth)) { 6295 final int height = mLayoutParams.height; 6296 // If the size of the view does not depend on the size of the text, try to 6297 // start the marquee immediately 6298 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 6299 startMarquee(); 6300 } else { 6301 // Defer the start of the marquee until we know our width (see setFrame()) 6302 mRestartMarquee = true; 6303 } 6304 } 6305 } 6306 6307 // CursorControllers need a non-null mLayout 6308 prepareCursorControllers(); 6309 } 6310 6311 private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 6312 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 6313 boolean useSaved) { 6314 Layout result = null; 6315 if (mText instanceof Spannable) { 6316 result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth, 6317 alignment, mTextDir, mSpacingMult, 6318 mSpacingAdd, mIncludePad, mInput == null ? effectiveEllipsize : null, 6319 ellipsisWidth); 6320 } else { 6321 if (boring == UNKNOWN_BORING) { 6322 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6323 if (boring != null) { 6324 mBoring = boring; 6325 } 6326 } 6327 6328 if (boring != null) { 6329 if (boring.width <= wantWidth && 6330 (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 6331 if (useSaved && mSavedLayout != null) { 6332 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6333 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6334 boring, mIncludePad); 6335 } else { 6336 result = BoringLayout.make(mTransformed, mTextPaint, 6337 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6338 boring, mIncludePad); 6339 } 6340 6341 if (useSaved) { 6342 mSavedLayout = (BoringLayout) result; 6343 } 6344 } else if (shouldEllipsize && boring.width <= wantWidth) { 6345 if (useSaved && mSavedLayout != null) { 6346 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6347 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6348 boring, mIncludePad, effectiveEllipsize, 6349 ellipsisWidth); 6350 } else { 6351 result = BoringLayout.make(mTransformed, mTextPaint, 6352 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6353 boring, mIncludePad, effectiveEllipsize, 6354 ellipsisWidth); 6355 } 6356 } else if (shouldEllipsize) { 6357 result = new StaticLayout(mTransformed, 6358 0, mTransformed.length(), 6359 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6360 mSpacingAdd, mIncludePad, effectiveEllipsize, 6361 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6362 } else { 6363 result = new StaticLayout(mTransformed, mTextPaint, 6364 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6365 mIncludePad); 6366 } 6367 } else if (shouldEllipsize) { 6368 result = new StaticLayout(mTransformed, 6369 0, mTransformed.length(), 6370 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6371 mSpacingAdd, mIncludePad, effectiveEllipsize, 6372 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6373 } else { 6374 result = new StaticLayout(mTransformed, mTextPaint, 6375 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6376 mIncludePad); 6377 } 6378 } 6379 return result; 6380 } 6381 6382 private boolean compressText(float width) { 6383 if (isHardwareAccelerated()) return false; 6384 6385 // Only compress the text if it hasn't been compressed by the previous pass 6386 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 6387 mTextPaint.getTextScaleX() == 1.0f) { 6388 final float textWidth = mLayout.getLineWidth(0); 6389 final float overflow = (textWidth + 1.0f - width) / width; 6390 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 6391 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 6392 post(new Runnable() { 6393 public void run() { 6394 requestLayout(); 6395 } 6396 }); 6397 return true; 6398 } 6399 } 6400 6401 return false; 6402 } 6403 6404 private static int desired(Layout layout) { 6405 int n = layout.getLineCount(); 6406 CharSequence text = layout.getText(); 6407 float max = 0; 6408 6409 // if any line was wrapped, we can't use it. 6410 // but it's ok for the last line not to have a newline 6411 6412 for (int i = 0; i < n - 1; i++) { 6413 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 6414 return -1; 6415 } 6416 6417 for (int i = 0; i < n; i++) { 6418 max = Math.max(max, layout.getLineWidth(i)); 6419 } 6420 6421 return (int) FloatMath.ceil(max); 6422 } 6423 6424 /** 6425 * Set whether the TextView includes extra top and bottom padding to make 6426 * room for accents that go above the normal ascent and descent. 6427 * The default is true. 6428 * 6429 * @attr ref android.R.styleable#TextView_includeFontPadding 6430 */ 6431 public void setIncludeFontPadding(boolean includepad) { 6432 if (mIncludePad != includepad) { 6433 mIncludePad = includepad; 6434 6435 if (mLayout != null) { 6436 nullLayouts(); 6437 requestLayout(); 6438 invalidate(); 6439 } 6440 } 6441 } 6442 6443 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 6444 6445 @Override 6446 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6447 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6448 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6449 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6450 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6451 6452 int width; 6453 int height; 6454 6455 BoringLayout.Metrics boring = UNKNOWN_BORING; 6456 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 6457 6458 if (mTextDir == null) { 6459 resolveTextDirection(); 6460 } 6461 6462 int des = -1; 6463 boolean fromexisting = false; 6464 6465 if (widthMode == MeasureSpec.EXACTLY) { 6466 // Parent has told us how big to be. So be it. 6467 width = widthSize; 6468 } else { 6469 if (mLayout != null && mEllipsize == null) { 6470 des = desired(mLayout); 6471 } 6472 6473 if (des < 0) { 6474 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6475 if (boring != null) { 6476 mBoring = boring; 6477 } 6478 } else { 6479 fromexisting = true; 6480 } 6481 6482 if (boring == null || boring == UNKNOWN_BORING) { 6483 if (des < 0) { 6484 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 6485 } 6486 6487 width = des; 6488 } else { 6489 width = boring.width; 6490 } 6491 6492 final Drawables dr = mDrawables; 6493 if (dr != null) { 6494 width = Math.max(width, dr.mDrawableWidthTop); 6495 width = Math.max(width, dr.mDrawableWidthBottom); 6496 } 6497 6498 if (mHint != null) { 6499 int hintDes = -1; 6500 int hintWidth; 6501 6502 if (mHintLayout != null && mEllipsize == null) { 6503 hintDes = desired(mHintLayout); 6504 } 6505 6506 if (hintDes < 0) { 6507 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 6508 if (hintBoring != null) { 6509 mHintBoring = hintBoring; 6510 } 6511 } 6512 6513 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 6514 if (hintDes < 0) { 6515 hintDes = (int) FloatMath.ceil( 6516 Layout.getDesiredWidth(mHint, mTextPaint)); 6517 } 6518 6519 hintWidth = hintDes; 6520 } else { 6521 hintWidth = hintBoring.width; 6522 } 6523 6524 if (hintWidth > width) { 6525 width = hintWidth; 6526 } 6527 } 6528 6529 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 6530 6531 if (mMaxWidthMode == EMS) { 6532 width = Math.min(width, mMaxWidth * getLineHeight()); 6533 } else { 6534 width = Math.min(width, mMaxWidth); 6535 } 6536 6537 if (mMinWidthMode == EMS) { 6538 width = Math.max(width, mMinWidth * getLineHeight()); 6539 } else { 6540 width = Math.max(width, mMinWidth); 6541 } 6542 6543 // Check against our minimum width 6544 width = Math.max(width, getSuggestedMinimumWidth()); 6545 6546 if (widthMode == MeasureSpec.AT_MOST) { 6547 width = Math.min(widthSize, width); 6548 } 6549 } 6550 6551 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6552 int unpaddedWidth = want; 6553 6554 if (mHorizontallyScrolling) want = VERY_WIDE; 6555 6556 int hintWant = want; 6557 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 6558 6559 if (mLayout == null) { 6560 makeNewLayout(want, hintWant, boring, hintBoring, 6561 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6562 } else { 6563 final boolean layoutChanged = (mLayout.getWidth() != want) || 6564 (hintWidth != hintWant) || 6565 (mLayout.getEllipsizedWidth() != 6566 width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6567 6568 final boolean widthChanged = (mHint == null) && 6569 (mEllipsize == null) && 6570 (want > mLayout.getWidth()) && 6571 (mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want)); 6572 6573 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 6574 6575 if (layoutChanged || maximumChanged) { 6576 if (!maximumChanged && widthChanged) { 6577 mLayout.increaseWidthTo(want); 6578 } else { 6579 makeNewLayout(want, hintWant, boring, hintBoring, 6580 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6581 } 6582 } else { 6583 // Nothing has changed 6584 } 6585 } 6586 6587 if (heightMode == MeasureSpec.EXACTLY) { 6588 // Parent has told us how big to be. So be it. 6589 height = heightSize; 6590 mDesiredHeightAtMeasure = -1; 6591 } else { 6592 int desired = getDesiredHeight(); 6593 6594 height = desired; 6595 mDesiredHeightAtMeasure = desired; 6596 6597 if (heightMode == MeasureSpec.AT_MOST) { 6598 height = Math.min(desired, heightSize); 6599 } 6600 } 6601 6602 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6603 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 6604 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 6605 } 6606 6607 /* 6608 * We didn't let makeNewLayout() register to bring the cursor into view, 6609 * so do it here if there is any possibility that it is needed. 6610 */ 6611 if (mMovement != null || 6612 mLayout.getWidth() > unpaddedWidth || 6613 mLayout.getHeight() > unpaddedHeight) { 6614 registerForPreDraw(); 6615 } else { 6616 scrollTo(0, 0); 6617 } 6618 6619 setMeasuredDimension(width, height); 6620 } 6621 6622 private int getDesiredHeight() { 6623 return Math.max( 6624 getDesiredHeight(mLayout, true), 6625 getDesiredHeight(mHintLayout, mEllipsize != null)); 6626 } 6627 6628 private int getDesiredHeight(Layout layout, boolean cap) { 6629 if (layout == null) { 6630 return 0; 6631 } 6632 6633 int linecount = layout.getLineCount(); 6634 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 6635 int desired = layout.getLineTop(linecount); 6636 6637 final Drawables dr = mDrawables; 6638 if (dr != null) { 6639 desired = Math.max(desired, dr.mDrawableHeightLeft); 6640 desired = Math.max(desired, dr.mDrawableHeightRight); 6641 } 6642 6643 desired += pad; 6644 6645 if (mMaxMode == LINES) { 6646 /* 6647 * Don't cap the hint to a certain number of lines. 6648 * (Do cap it, though, if we have a maximum pixel height.) 6649 */ 6650 if (cap) { 6651 if (linecount > mMaximum) { 6652 desired = layout.getLineTop(mMaximum); 6653 6654 if (dr != null) { 6655 desired = Math.max(desired, dr.mDrawableHeightLeft); 6656 desired = Math.max(desired, dr.mDrawableHeightRight); 6657 } 6658 6659 desired += pad; 6660 linecount = mMaximum; 6661 } 6662 } 6663 } else { 6664 desired = Math.min(desired, mMaximum); 6665 } 6666 6667 if (mMinMode == LINES) { 6668 if (linecount < mMinimum) { 6669 desired += getLineHeight() * (mMinimum - linecount); 6670 } 6671 } else { 6672 desired = Math.max(desired, mMinimum); 6673 } 6674 6675 // Check against our minimum height 6676 desired = Math.max(desired, getSuggestedMinimumHeight()); 6677 6678 return desired; 6679 } 6680 6681 /** 6682 * Check whether a change to the existing text layout requires a 6683 * new view layout. 6684 */ 6685 private void checkForResize() { 6686 boolean sizeChanged = false; 6687 6688 if (mLayout != null) { 6689 // Check if our width changed 6690 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6691 sizeChanged = true; 6692 invalidate(); 6693 } 6694 6695 // Check if our height changed 6696 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6697 int desiredHeight = getDesiredHeight(); 6698 6699 if (desiredHeight != this.getHeight()) { 6700 sizeChanged = true; 6701 } 6702 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6703 if (mDesiredHeightAtMeasure >= 0) { 6704 int desiredHeight = getDesiredHeight(); 6705 6706 if (desiredHeight != mDesiredHeightAtMeasure) { 6707 sizeChanged = true; 6708 } 6709 } 6710 } 6711 } 6712 6713 if (sizeChanged) { 6714 requestLayout(); 6715 // caller will have already invalidated 6716 } 6717 } 6718 6719 /** 6720 * Check whether entirely new text requires a new view layout 6721 * or merely a new text layout. 6722 */ 6723 private void checkForRelayout() { 6724 // If we have a fixed width, we can just swap in a new text layout 6725 // if the text height stays the same or if the view height is fixed. 6726 6727 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6728 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6729 (mHint == null || mHintLayout != null) && 6730 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6731 // Static width, so try making a new text layout. 6732 6733 int oldht = mLayout.getHeight(); 6734 int want = mLayout.getWidth(); 6735 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6736 6737 /* 6738 * No need to bring the text into view, since the size is not 6739 * changing (unless we do the requestLayout(), in which case it 6740 * will happen at measure). 6741 */ 6742 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6743 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6744 false); 6745 6746 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6747 // In a fixed-height view, so use our new text layout. 6748 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6749 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6750 invalidate(); 6751 return; 6752 } 6753 6754 // Dynamic height, but height has stayed the same, 6755 // so use our new text layout. 6756 if (mLayout.getHeight() == oldht && 6757 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6758 invalidate(); 6759 return; 6760 } 6761 } 6762 6763 // We lose: the height has changed and we have a dynamic height. 6764 // Request a new view layout using our new text layout. 6765 requestLayout(); 6766 invalidate(); 6767 } else { 6768 // Dynamic width, so we have no choice but to request a new 6769 // view layout with a new text layout. 6770 nullLayouts(); 6771 requestLayout(); 6772 invalidate(); 6773 } 6774 } 6775 6776 /** 6777 * Returns true if anything changed. 6778 */ 6779 private boolean bringTextIntoView() { 6780 int line = 0; 6781 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6782 line = mLayout.getLineCount() - 1; 6783 } 6784 6785 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6786 int dir = mLayout.getParagraphDirection(line); 6787 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6788 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6789 int ht = mLayout.getHeight(); 6790 6791 int scrollx, scrolly; 6792 6793 // Convert to left, center, or right alignment. 6794 if (a == Layout.Alignment.ALIGN_NORMAL) { 6795 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT : 6796 Layout.Alignment.ALIGN_RIGHT; 6797 } else if (a == Layout.Alignment.ALIGN_OPPOSITE){ 6798 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT : 6799 Layout.Alignment.ALIGN_LEFT; 6800 } 6801 6802 if (a == Layout.Alignment.ALIGN_CENTER) { 6803 /* 6804 * Keep centered if possible, or, if it is too wide to fit, 6805 * keep leading edge in view. 6806 */ 6807 6808 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6809 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6810 6811 if (right - left < hspace) { 6812 scrollx = (right + left) / 2 - hspace / 2; 6813 } else { 6814 if (dir < 0) { 6815 scrollx = right - hspace; 6816 } else { 6817 scrollx = left; 6818 } 6819 } 6820 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 6821 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6822 scrollx = right - hspace; 6823 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 6824 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6825 } 6826 6827 if (ht < vspace) { 6828 scrolly = 0; 6829 } else { 6830 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6831 scrolly = ht - vspace; 6832 } else { 6833 scrolly = 0; 6834 } 6835 } 6836 6837 if (scrollx != mScrollX || scrolly != mScrollY) { 6838 scrollTo(scrollx, scrolly); 6839 return true; 6840 } else { 6841 return false; 6842 } 6843 } 6844 6845 /** 6846 * Move the point, specified by the offset, into the view if it is needed. 6847 * This has to be called after layout. Returns true if anything changed. 6848 */ 6849 public boolean bringPointIntoView(int offset) { 6850 boolean changed = false; 6851 6852 if (mLayout == null) return changed; 6853 6854 int line = mLayout.getLineForOffset(offset); 6855 6856 // FIXME: Is it okay to truncate this, or should we round? 6857 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6858 final int top = mLayout.getLineTop(line); 6859 final int bottom = mLayout.getLineTop(line + 1); 6860 6861 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6862 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6863 int ht = mLayout.getHeight(); 6864 6865 int grav; 6866 6867 switch (mLayout.getParagraphAlignment(line)) { 6868 case ALIGN_LEFT: 6869 grav = 1; 6870 break; 6871 case ALIGN_RIGHT: 6872 grav = -1; 6873 break; 6874 case ALIGN_NORMAL: 6875 grav = mLayout.getParagraphDirection(line); 6876 break; 6877 case ALIGN_OPPOSITE: 6878 grav = -mLayout.getParagraphDirection(line); 6879 break; 6880 case ALIGN_CENTER: 6881 default: 6882 grav = 0; 6883 break; 6884 } 6885 6886 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6887 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6888 6889 int hslack = (bottom - top) / 2; 6890 int vslack = hslack; 6891 6892 if (vslack > vspace / 4) 6893 vslack = vspace / 4; 6894 if (hslack > hspace / 4) 6895 hslack = hspace / 4; 6896 6897 int hs = mScrollX; 6898 int vs = mScrollY; 6899 6900 if (top - vs < vslack) 6901 vs = top - vslack; 6902 if (bottom - vs > vspace - vslack) 6903 vs = bottom - (vspace - vslack); 6904 if (ht - vs < vspace) 6905 vs = ht - vspace; 6906 if (0 - vs > 0) 6907 vs = 0; 6908 6909 if (grav != 0) { 6910 if (x - hs < hslack) { 6911 hs = x - hslack; 6912 } 6913 if (x - hs > hspace - hslack) { 6914 hs = x - (hspace - hslack); 6915 } 6916 } 6917 6918 if (grav < 0) { 6919 if (left - hs > 0) 6920 hs = left; 6921 if (right - hs < hspace) 6922 hs = right - hspace; 6923 } else if (grav > 0) { 6924 if (right - hs < hspace) 6925 hs = right - hspace; 6926 if (left - hs > 0) 6927 hs = left; 6928 } else /* grav == 0 */ { 6929 if (right - left <= hspace) { 6930 /* 6931 * If the entire text fits, center it exactly. 6932 */ 6933 hs = left - (hspace - (right - left)) / 2; 6934 } else if (x > right - hslack) { 6935 /* 6936 * If we are near the right edge, keep the right edge 6937 * at the edge of the view. 6938 */ 6939 hs = right - hspace; 6940 } else if (x < left + hslack) { 6941 /* 6942 * If we are near the left edge, keep the left edge 6943 * at the edge of the view. 6944 */ 6945 hs = left; 6946 } else if (left > hs) { 6947 /* 6948 * Is there whitespace visible at the left? Fix it if so. 6949 */ 6950 hs = left; 6951 } else if (right < hs + hspace) { 6952 /* 6953 * Is there whitespace visible at the right? Fix it if so. 6954 */ 6955 hs = right - hspace; 6956 } else { 6957 /* 6958 * Otherwise, float as needed. 6959 */ 6960 if (x - hs < hslack) { 6961 hs = x - hslack; 6962 } 6963 if (x - hs > hspace - hslack) { 6964 hs = x - (hspace - hslack); 6965 } 6966 } 6967 } 6968 6969 if (hs != mScrollX || vs != mScrollY) { 6970 if (mScroller == null) { 6971 scrollTo(hs, vs); 6972 } else { 6973 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6974 int dx = hs - mScrollX; 6975 int dy = vs - mScrollY; 6976 6977 if (duration > ANIMATED_SCROLL_GAP) { 6978 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6979 awakenScrollBars(mScroller.getDuration()); 6980 invalidate(); 6981 } else { 6982 if (!mScroller.isFinished()) { 6983 mScroller.abortAnimation(); 6984 } 6985 6986 scrollBy(dx, dy); 6987 } 6988 6989 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6990 } 6991 6992 changed = true; 6993 } 6994 6995 if (isFocused()) { 6996 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6997 // requestRectangleOnScreen() is in terms of content coordinates. 6998 6999 if (mTempRect == null) mTempRect = new Rect(); 7000 // The offsets here are to ensure the rectangle we are using is 7001 // within our view bounds, in case the cursor is on the far left 7002 // or right. If it isn't withing the bounds, then this request 7003 // will be ignored. 7004 mTempRect.set(x - 2, top, x + 2, bottom); 7005 getInterestingRect(mTempRect, line); 7006 mTempRect.offset(mScrollX, mScrollY); 7007 7008 if (requestRectangleOnScreen(mTempRect)) { 7009 changed = true; 7010 } 7011 } 7012 7013 return changed; 7014 } 7015 7016 /** 7017 * Move the cursor, if needed, so that it is at an offset that is visible 7018 * to the user. This will not move the cursor if it represents more than 7019 * one character (a selection range). This will only work if the 7020 * TextView contains spannable text; otherwise it will do nothing. 7021 * 7022 * @return True if the cursor was actually moved, false otherwise. 7023 */ 7024 public boolean moveCursorToVisibleOffset() { 7025 if (!(mText instanceof Spannable)) { 7026 return false; 7027 } 7028 int start = getSelectionStart(); 7029 int end = getSelectionEnd(); 7030 if (start != end) { 7031 return false; 7032 } 7033 7034 // First: make sure the line is visible on screen: 7035 7036 int line = mLayout.getLineForOffset(start); 7037 7038 final int top = mLayout.getLineTop(line); 7039 final int bottom = mLayout.getLineTop(line + 1); 7040 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 7041 int vslack = (bottom - top) / 2; 7042 if (vslack > vspace / 4) 7043 vslack = vspace / 4; 7044 final int vs = mScrollY; 7045 7046 if (top < (vs+vslack)) { 7047 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 7048 } else if (bottom > (vspace+vs-vslack)) { 7049 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 7050 } 7051 7052 // Next: make sure the character is visible on screen: 7053 7054 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 7055 final int hs = mScrollX; 7056 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 7057 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 7058 7059 // line might contain bidirectional text 7060 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 7061 final int highChar = leftChar > rightChar ? leftChar : rightChar; 7062 7063 int newStart = start; 7064 if (newStart < lowChar) { 7065 newStart = lowChar; 7066 } else if (newStart > highChar) { 7067 newStart = highChar; 7068 } 7069 7070 if (newStart != start) { 7071 Selection.setSelection((Spannable)mText, newStart); 7072 return true; 7073 } 7074 7075 return false; 7076 } 7077 7078 @Override 7079 public void computeScroll() { 7080 if (mScroller != null) { 7081 if (mScroller.computeScrollOffset()) { 7082 mScrollX = mScroller.getCurrX(); 7083 mScrollY = mScroller.getCurrY(); 7084 invalidateParentCaches(); 7085 postInvalidate(); // So we draw again 7086 } 7087 } 7088 } 7089 7090 private void getInterestingRect(Rect r, int line) { 7091 convertFromViewportToContentCoordinates(r); 7092 7093 // Rectangle can can be expanded on first and last line to take 7094 // padding into account. 7095 // TODO Take left/right padding into account too? 7096 if (line == 0) r.top -= getExtendedPaddingTop(); 7097 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 7098 } 7099 7100 private void convertFromViewportToContentCoordinates(Rect r) { 7101 final int horizontalOffset = viewportToContentHorizontalOffset(); 7102 r.left += horizontalOffset; 7103 r.right += horizontalOffset; 7104 7105 final int verticalOffset = viewportToContentVerticalOffset(); 7106 r.top += verticalOffset; 7107 r.bottom += verticalOffset; 7108 } 7109 7110 private int viewportToContentHorizontalOffset() { 7111 return getCompoundPaddingLeft() - mScrollX; 7112 } 7113 7114 private int viewportToContentVerticalOffset() { 7115 int offset = getExtendedPaddingTop() - mScrollY; 7116 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7117 offset += getVerticalOffset(false); 7118 } 7119 return offset; 7120 } 7121 7122 @Override 7123 public void debug(int depth) { 7124 super.debug(depth); 7125 7126 String output = debugIndent(depth); 7127 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 7128 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 7129 + "} "; 7130 7131 if (mText != null) { 7132 7133 output += "mText=\"" + mText + "\" "; 7134 if (mLayout != null) { 7135 output += "mLayout width=" + mLayout.getWidth() 7136 + " height=" + mLayout.getHeight(); 7137 } 7138 } else { 7139 output += "mText=NULL"; 7140 } 7141 Log.d(VIEW_LOG_TAG, output); 7142 } 7143 7144 /** 7145 * Convenience for {@link Selection#getSelectionStart}. 7146 */ 7147 @ViewDebug.ExportedProperty(category = "text") 7148 public int getSelectionStart() { 7149 return Selection.getSelectionStart(getText()); 7150 } 7151 7152 /** 7153 * Convenience for {@link Selection#getSelectionEnd}. 7154 */ 7155 @ViewDebug.ExportedProperty(category = "text") 7156 public int getSelectionEnd() { 7157 return Selection.getSelectionEnd(getText()); 7158 } 7159 7160 /** 7161 * Return true iff there is a selection inside this text view. 7162 */ 7163 public boolean hasSelection() { 7164 final int selectionStart = getSelectionStart(); 7165 final int selectionEnd = getSelectionEnd(); 7166 7167 return selectionStart >= 0 && selectionStart != selectionEnd; 7168 } 7169 7170 /** 7171 * Sets the properties of this field (lines, horizontally scrolling, 7172 * transformation method) to be for a single-line input. 7173 * 7174 * @attr ref android.R.styleable#TextView_singleLine 7175 */ 7176 public void setSingleLine() { 7177 setSingleLine(true); 7178 } 7179 7180 /** 7181 * Sets the properties of this field to transform input to ALL CAPS 7182 * display. This may use a "small caps" formatting if available. 7183 * This setting will be ignored if this field is editable or selectable. 7184 * 7185 * This call replaces the current transformation method. Disabling this 7186 * will not necessarily restore the previous behavior from before this 7187 * was enabled. 7188 * 7189 * @see #setTransformationMethod(TransformationMethod) 7190 * @attr ref android.R.styleable#TextView_textAllCaps 7191 */ 7192 public void setAllCaps(boolean allCaps) { 7193 if (allCaps) { 7194 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 7195 } else { 7196 setTransformationMethod(null); 7197 } 7198 } 7199 7200 /** 7201 * If true, sets the properties of this field (number of lines, horizontally scrolling, 7202 * transformation method) to be for a single-line input; if false, restores these to the default 7203 * conditions. 7204 * 7205 * Note that the default conditions are not necessarily those that were in effect prior this 7206 * method, and you may want to reset these properties to your custom values. 7207 * 7208 * @attr ref android.R.styleable#TextView_singleLine 7209 */ 7210 @android.view.RemotableViewMethod 7211 public void setSingleLine(boolean singleLine) { 7212 // Could be used, but may break backward compatibility. 7213 // if (mSingleLine == singleLine) return; 7214 setInputTypeSingleLine(singleLine); 7215 applySingleLine(singleLine, true, true); 7216 } 7217 7218 /** 7219 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 7220 * @param singleLine 7221 */ 7222 private void setInputTypeSingleLine(boolean singleLine) { 7223 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 7224 if (singleLine) { 7225 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7226 } else { 7227 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7228 } 7229 } 7230 } 7231 7232 private void applySingleLine(boolean singleLine, boolean applyTransformation, 7233 boolean changeMaxLines) { 7234 mSingleLine = singleLine; 7235 if (singleLine) { 7236 setLines(1); 7237 setHorizontallyScrolling(true); 7238 if (applyTransformation) { 7239 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 7240 } 7241 } else { 7242 if (changeMaxLines) { 7243 setMaxLines(Integer.MAX_VALUE); 7244 } 7245 setHorizontallyScrolling(false); 7246 if (applyTransformation) { 7247 setTransformationMethod(null); 7248 } 7249 } 7250 } 7251 7252 /** 7253 * Causes words in the text that are longer than the view is wide 7254 * to be ellipsized instead of broken in the middle. You may also 7255 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 7256 * to constrain the text to a single line. Use <code>null</code> 7257 * to turn off ellipsizing. 7258 * 7259 * If {@link #setMaxLines} has been used to set two or more lines, 7260 * {@link android.text.TextUtils.TruncateAt#END} and 7261 * {@link android.text.TextUtils.TruncateAt#MARQUEE}* are only supported 7262 * (other ellipsizing types will not do anything). 7263 * 7264 * @attr ref android.R.styleable#TextView_ellipsize 7265 */ 7266 public void setEllipsize(TextUtils.TruncateAt where) { 7267 // TruncateAt is an enum. != comparison is ok between these singleton objects. 7268 if (mEllipsize != where) { 7269 mEllipsize = where; 7270 7271 if (mLayout != null) { 7272 nullLayouts(); 7273 requestLayout(); 7274 invalidate(); 7275 } 7276 } 7277 } 7278 7279 /** 7280 * Sets how many times to repeat the marquee animation. Only applied if the 7281 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 7282 * 7283 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7284 */ 7285 public void setMarqueeRepeatLimit(int marqueeLimit) { 7286 mMarqueeRepeatLimit = marqueeLimit; 7287 } 7288 7289 /** 7290 * Returns where, if anywhere, words that are longer than the view 7291 * is wide should be ellipsized. 7292 */ 7293 @ViewDebug.ExportedProperty 7294 public TextUtils.TruncateAt getEllipsize() { 7295 return mEllipsize; 7296 } 7297 7298 /** 7299 * Set the TextView so that when it takes focus, all the text is 7300 * selected. 7301 * 7302 * @attr ref android.R.styleable#TextView_selectAllOnFocus 7303 */ 7304 @android.view.RemotableViewMethod 7305 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 7306 mSelectAllOnFocus = selectAllOnFocus; 7307 7308 if (selectAllOnFocus && !(mText instanceof Spannable)) { 7309 setText(mText, BufferType.SPANNABLE); 7310 } 7311 } 7312 7313 /** 7314 * Set whether the cursor is visible. The default is true. 7315 * 7316 * @attr ref android.R.styleable#TextView_cursorVisible 7317 */ 7318 @android.view.RemotableViewMethod 7319 public void setCursorVisible(boolean visible) { 7320 if (mCursorVisible != visible) { 7321 mCursorVisible = visible; 7322 invalidate(); 7323 7324 makeBlink(); 7325 7326 // InsertionPointCursorController depends on mCursorVisible 7327 prepareCursorControllers(); 7328 } 7329 } 7330 7331 private boolean isCursorVisible() { 7332 return mCursorVisible && isTextEditable(); 7333 } 7334 7335 private boolean canMarquee() { 7336 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 7337 return width > 0 && (mLayout.getLineWidth(0) > width || 7338 (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null && 7339 mSavedMarqueeModeLayout.getLineWidth(0) > width)); 7340 } 7341 7342 private void startMarquee() { 7343 // Do not ellipsize EditText 7344 if (mInput != null) return; 7345 7346 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 7347 return; 7348 } 7349 7350 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 7351 getLineCount() == 1 && canMarquee()) { 7352 7353 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7354 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 7355 final Layout tmp = mLayout; 7356 mLayout = mSavedMarqueeModeLayout; 7357 mSavedMarqueeModeLayout = tmp; 7358 setHorizontalFadingEdgeEnabled(true); 7359 requestLayout(); 7360 invalidate(); 7361 } 7362 7363 if (mMarquee == null) mMarquee = new Marquee(this); 7364 mMarquee.start(mMarqueeRepeatLimit); 7365 } 7366 } 7367 7368 private void stopMarquee() { 7369 if (mMarquee != null && !mMarquee.isStopped()) { 7370 mMarquee.stop(); 7371 } 7372 7373 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 7374 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 7375 final Layout tmp = mSavedMarqueeModeLayout; 7376 mSavedMarqueeModeLayout = mLayout; 7377 mLayout = tmp; 7378 setHorizontalFadingEdgeEnabled(false); 7379 requestLayout(); 7380 invalidate(); 7381 } 7382 } 7383 7384 private void startStopMarquee(boolean start) { 7385 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7386 if (start) { 7387 startMarquee(); 7388 } else { 7389 stopMarquee(); 7390 } 7391 } 7392 } 7393 7394 private static final class Marquee extends Handler { 7395 // TODO: Add an option to configure this 7396 private static final float MARQUEE_DELTA_MAX = 0.07f; 7397 private static final int MARQUEE_DELAY = 1200; 7398 private static final int MARQUEE_RESTART_DELAY = 1200; 7399 private static final int MARQUEE_RESOLUTION = 1000 / 30; 7400 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 7401 7402 private static final byte MARQUEE_STOPPED = 0x0; 7403 private static final byte MARQUEE_STARTING = 0x1; 7404 private static final byte MARQUEE_RUNNING = 0x2; 7405 7406 private static final int MESSAGE_START = 0x1; 7407 private static final int MESSAGE_TICK = 0x2; 7408 private static final int MESSAGE_RESTART = 0x3; 7409 7410 private final WeakReference<TextView> mView; 7411 7412 private byte mStatus = MARQUEE_STOPPED; 7413 private final float mScrollUnit; 7414 private float mMaxScroll; 7415 float mMaxFadeScroll; 7416 private float mGhostStart; 7417 private float mGhostOffset; 7418 private float mFadeStop; 7419 private int mRepeatLimit; 7420 7421 float mScroll; 7422 7423 Marquee(TextView v) { 7424 final float density = v.getContext().getResources().getDisplayMetrics().density; 7425 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 7426 mView = new WeakReference<TextView>(v); 7427 } 7428 7429 @Override 7430 public void handleMessage(Message msg) { 7431 switch (msg.what) { 7432 case MESSAGE_START: 7433 mStatus = MARQUEE_RUNNING; 7434 tick(); 7435 break; 7436 case MESSAGE_TICK: 7437 tick(); 7438 break; 7439 case MESSAGE_RESTART: 7440 if (mStatus == MARQUEE_RUNNING) { 7441 if (mRepeatLimit >= 0) { 7442 mRepeatLimit--; 7443 } 7444 start(mRepeatLimit); 7445 } 7446 break; 7447 } 7448 } 7449 7450 void tick() { 7451 if (mStatus != MARQUEE_RUNNING) { 7452 return; 7453 } 7454 7455 removeMessages(MESSAGE_TICK); 7456 7457 final TextView textView = mView.get(); 7458 if (textView != null && (textView.isFocused() || textView.isSelected())) { 7459 mScroll += mScrollUnit; 7460 if (mScroll > mMaxScroll) { 7461 mScroll = mMaxScroll; 7462 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 7463 } else { 7464 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 7465 } 7466 textView.invalidate(); 7467 } 7468 } 7469 7470 void stop() { 7471 mStatus = MARQUEE_STOPPED; 7472 removeMessages(MESSAGE_START); 7473 removeMessages(MESSAGE_RESTART); 7474 removeMessages(MESSAGE_TICK); 7475 resetScroll(); 7476 } 7477 7478 private void resetScroll() { 7479 mScroll = 0.0f; 7480 final TextView textView = mView.get(); 7481 if (textView != null) textView.invalidate(); 7482 } 7483 7484 void start(int repeatLimit) { 7485 if (repeatLimit == 0) { 7486 stop(); 7487 return; 7488 } 7489 mRepeatLimit = repeatLimit; 7490 final TextView textView = mView.get(); 7491 if (textView != null && textView.mLayout != null) { 7492 mStatus = MARQUEE_STARTING; 7493 mScroll = 0.0f; 7494 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 7495 textView.getCompoundPaddingRight(); 7496 final float lineWidth = textView.mLayout.getLineWidth(0); 7497 final float gap = textWidth / 3.0f; 7498 mGhostStart = lineWidth - textWidth + gap; 7499 mMaxScroll = mGhostStart + textWidth; 7500 mGhostOffset = lineWidth + gap; 7501 mFadeStop = lineWidth + textWidth / 6.0f; 7502 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 7503 7504 textView.invalidate(); 7505 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 7506 } 7507 } 7508 7509 float getGhostOffset() { 7510 return mGhostOffset; 7511 } 7512 7513 boolean shouldDrawLeftFade() { 7514 return mScroll <= mFadeStop; 7515 } 7516 7517 boolean shouldDrawGhost() { 7518 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 7519 } 7520 7521 boolean isRunning() { 7522 return mStatus == MARQUEE_RUNNING; 7523 } 7524 7525 boolean isStopped() { 7526 return mStatus == MARQUEE_STOPPED; 7527 } 7528 } 7529 7530 /** 7531 * This method is called when the text is changed, in case any subclasses 7532 * would like to know. 7533 * 7534 * Within <code>text</code>, the <code>lengthAfter</code> characters 7535 * beginning at <code>start</code> have just replaced old text that had 7536 * length <code>lengthBefore</code>. It is an error to attempt to make 7537 * changes to <code>text</code> from this callback. 7538 * 7539 * @param text The text the TextView is displaying 7540 * @param start The offset of the start of the range of the text that was 7541 * modified 7542 * @param lengthBefore The length of the former text that has been replaced 7543 * @param lengthAfter The length of the replacement modified text 7544 */ 7545 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 7546 // intentionally empty, template pattern method can be overridden by subclasses 7547 } 7548 7549 /** 7550 * This method is called when the selection has changed, in case any 7551 * subclasses would like to know. 7552 * 7553 * @param selStart The new selection start location. 7554 * @param selEnd The new selection end location. 7555 */ 7556 protected void onSelectionChanged(int selStart, int selEnd) { 7557 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 7558 } 7559 7560 /** 7561 * Adds a TextWatcher to the list of those whose methods are called 7562 * whenever this TextView's text changes. 7563 * <p> 7564 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 7565 * not called after {@link #setText} calls. Now, doing {@link #setText} 7566 * if there are any text changed listeners forces the buffer type to 7567 * Editable if it would not otherwise be and does call this method. 7568 */ 7569 public void addTextChangedListener(TextWatcher watcher) { 7570 if (mListeners == null) { 7571 mListeners = new ArrayList<TextWatcher>(); 7572 } 7573 7574 mListeners.add(watcher); 7575 } 7576 7577 /** 7578 * Removes the specified TextWatcher from the list of those whose 7579 * methods are called 7580 * whenever this TextView's text changes. 7581 */ 7582 public void removeTextChangedListener(TextWatcher watcher) { 7583 if (mListeners != null) { 7584 int i = mListeners.indexOf(watcher); 7585 7586 if (i >= 0) { 7587 mListeners.remove(i); 7588 } 7589 } 7590 } 7591 7592 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 7593 if (mListeners != null) { 7594 final ArrayList<TextWatcher> list = mListeners; 7595 final int count = list.size(); 7596 for (int i = 0; i < count; i++) { 7597 list.get(i).beforeTextChanged(text, start, before, after); 7598 } 7599 } 7600 7601 // The spans that are inside or intersect the modified region no longer make sense 7602 removeIntersectingSpans(start, start + before, SpellCheckSpan.class); 7603 removeIntersectingSpans(start, start + before, SuggestionSpan.class); 7604 } 7605 7606 // Removes all spans that are inside or actually overlap the start..end range 7607 private <T> void removeIntersectingSpans(int start, int end, Class<T> type) { 7608 if (!(mText instanceof Editable)) return; 7609 Editable text = (Editable) mText; 7610 7611 T[] spans = text.getSpans(start, end, type); 7612 final int length = spans.length; 7613 for (int i = 0; i < length; i++) { 7614 final int s = text.getSpanStart(spans[i]); 7615 final int e = text.getSpanEnd(spans[i]); 7616 // Spans that are adjacent to the edited region will be handled in 7617 // updateSpellCheckSpans. Result depends on what will be added (space or text) 7618 if (e == start || s == end) break; 7619 text.removeSpan(spans[i]); 7620 } 7621 } 7622 7623 /** 7624 * Not private so it can be called from an inner class without going 7625 * through a thunk. 7626 */ 7627 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 7628 if (mListeners != null) { 7629 final ArrayList<TextWatcher> list = mListeners; 7630 final int count = list.size(); 7631 for (int i = 0; i < count; i++) { 7632 list.get(i).onTextChanged(text, start, before, after); 7633 } 7634 } 7635 } 7636 7637 /** 7638 * Not private so it can be called from an inner class without going 7639 * through a thunk. 7640 */ 7641 void sendAfterTextChanged(Editable text) { 7642 if (mListeners != null) { 7643 final ArrayList<TextWatcher> list = mListeners; 7644 final int count = list.size(); 7645 for (int i = 0; i < count; i++) { 7646 list.get(i).afterTextChanged(text); 7647 } 7648 } 7649 } 7650 7651 /** 7652 * Not private so it can be called from an inner class without going 7653 * through a thunk. 7654 */ 7655 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 7656 final InputMethodState ims = mInputMethodState; 7657 if (ims == null || ims.mBatchEditNesting == 0) { 7658 updateAfterEdit(); 7659 } 7660 if (ims != null) { 7661 ims.mContentChanged = true; 7662 if (ims.mChangedStart < 0) { 7663 ims.mChangedStart = start; 7664 ims.mChangedEnd = start+before; 7665 } else { 7666 ims.mChangedStart = Math.min(ims.mChangedStart, start); 7667 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 7668 } 7669 ims.mChangedDelta += after-before; 7670 } 7671 7672 sendOnTextChanged(buffer, start, before, after); 7673 onTextChanged(buffer, start, before, after); 7674 7675 updateSpellCheckSpans(start, start + after); 7676 7677 // Hide the controllers if the amount of content changed 7678 if (before != after) { 7679 // We do not hide the span controllers, as they can be added when a new text is 7680 // inserted into the text view 7681 hideCursorControllers(); 7682 } 7683 } 7684 7685 /** 7686 * Not private so it can be called from an inner class without going 7687 * through a thunk. 7688 */ 7689 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 7690 // XXX Make the start and end move together if this ends up 7691 // spending too much time invalidating. 7692 7693 boolean selChanged = false; 7694 int newSelStart=-1, newSelEnd=-1; 7695 7696 final InputMethodState ims = mInputMethodState; 7697 7698 if (what == Selection.SELECTION_END) { 7699 mHighlightPathBogus = true; 7700 selChanged = true; 7701 newSelEnd = newStart; 7702 7703 if (!isFocused()) { 7704 mSelectionMoved = true; 7705 } 7706 7707 if (oldStart >= 0 || newStart >= 0) { 7708 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 7709 registerForPreDraw(); 7710 makeBlink(); 7711 } 7712 } 7713 7714 if (what == Selection.SELECTION_START) { 7715 mHighlightPathBogus = true; 7716 selChanged = true; 7717 newSelStart = newStart; 7718 7719 if (!isFocused()) { 7720 mSelectionMoved = true; 7721 } 7722 7723 if (oldStart >= 0 || newStart >= 0) { 7724 int end = Selection.getSelectionEnd(buf); 7725 invalidateCursor(end, oldStart, newStart); 7726 } 7727 } 7728 7729 if (selChanged) { 7730 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 7731 if (newSelStart < 0) { 7732 newSelStart = Selection.getSelectionStart(buf); 7733 } 7734 if (newSelEnd < 0) { 7735 newSelEnd = Selection.getSelectionEnd(buf); 7736 } 7737 onSelectionChanged(newSelStart, newSelEnd); 7738 } 7739 } 7740 7741 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle 7742 || (what instanceof SuggestionSpan && (((SuggestionSpan)what).getFlags() 7743 & SuggestionSpan.FLAG_AUTO_CORRECTION) != 0)) { 7744 if (ims == null || ims.mBatchEditNesting == 0) { 7745 invalidate(); 7746 mHighlightPathBogus = true; 7747 checkForResize(); 7748 } else { 7749 ims.mContentChanged = true; 7750 } 7751 } 7752 7753 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7754 mHighlightPathBogus = true; 7755 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7756 ims.mSelectionModeChanged = true; 7757 } 7758 7759 if (Selection.getSelectionStart(buf) >= 0) { 7760 if (ims == null || ims.mBatchEditNesting == 0) { 7761 invalidateCursor(); 7762 } else { 7763 ims.mCursorChanged = true; 7764 } 7765 } 7766 } 7767 7768 if (what instanceof ParcelableSpan) { 7769 // If this is a span that can be sent to a remote process, 7770 // the current extract editor would be interested in it. 7771 if (ims != null && ims.mExtracting != null) { 7772 if (ims.mBatchEditNesting != 0) { 7773 if (oldStart >= 0) { 7774 if (ims.mChangedStart > oldStart) { 7775 ims.mChangedStart = oldStart; 7776 } 7777 if (ims.mChangedStart > oldEnd) { 7778 ims.mChangedStart = oldEnd; 7779 } 7780 } 7781 if (newStart >= 0) { 7782 if (ims.mChangedStart > newStart) { 7783 ims.mChangedStart = newStart; 7784 } 7785 if (ims.mChangedStart > newEnd) { 7786 ims.mChangedStart = newEnd; 7787 } 7788 } 7789 } else { 7790 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7791 + oldStart + "-" + oldEnd + "," 7792 + newStart + "-" + newEnd + what); 7793 ims.mContentChanged = true; 7794 } 7795 } 7796 } 7797 7798 if (newStart < 0 && what instanceof SpellCheckSpan) { 7799 getSpellChecker().removeSpellCheckSpan((SpellCheckSpan) what); 7800 } 7801 } 7802 7803 /** 7804 * Create new SpellCheckSpans on the modified region. 7805 */ 7806 private void updateSpellCheckSpans(int start, int end) { 7807 if (isTextEditable() && isSuggestionsEnabled()) { 7808 getSpellChecker().spellCheck(start, end); 7809 } 7810 } 7811 7812 /** 7813 * Controls the {@link EasyEditSpan} monitoring when it is added, and when the related 7814 * pop-up should be displayed. 7815 */ 7816 private class EasyEditSpanController { 7817 7818 private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs 7819 7820 private EasyEditPopupWindow mPopupWindow; 7821 7822 private EasyEditSpan mEasyEditSpan; 7823 7824 private Runnable mHidePopup; 7825 7826 private void hide() { 7827 if (mPopupWindow != null) { 7828 mPopupWindow.hide(); 7829 TextView.this.removeCallbacks(mHidePopup); 7830 } 7831 removeSpans(mText); 7832 mEasyEditSpan = null; 7833 } 7834 7835 /** 7836 * Monitors the changes in the text. 7837 * 7838 * <p>{@link ChangeWatcher#onSpanAdded(Spannable, Object, int, int)} cannot be used, 7839 * as the notifications are not sent when a spannable (with spans) is inserted. 7840 */ 7841 public void onTextChange(CharSequence buffer) { 7842 adjustSpans(mText); 7843 7844 if (getWindowVisibility() != View.VISIBLE) { 7845 // The window is not visible yet, ignore the text change. 7846 return; 7847 } 7848 7849 if (mLayout == null) { 7850 // The view has not been layout yet, ignore the text change 7851 return; 7852 } 7853 7854 InputMethodManager imm = InputMethodManager.peekInstance(); 7855 if (!(TextView.this instanceof ExtractEditText) 7856 && imm != null && imm.isFullscreenMode()) { 7857 // The input is in extract mode. We do not have to handle the easy edit in the 7858 // original TextView, as the ExtractEditText will do 7859 return; 7860 } 7861 7862 // Remove the current easy edit span, as the text changed, and remove the pop-up 7863 // (if any) 7864 if (mEasyEditSpan != null) { 7865 if (mText instanceof Spannable) { 7866 ((Spannable) mText).removeSpan(mEasyEditSpan); 7867 } 7868 mEasyEditSpan = null; 7869 } 7870 if (mPopupWindow != null && mPopupWindow.isShowing()) { 7871 mPopupWindow.hide(); 7872 } 7873 7874 // Display the new easy edit span (if any). 7875 if (buffer instanceof Spanned) { 7876 mEasyEditSpan = getSpan((Spanned) buffer); 7877 if (mEasyEditSpan != null) { 7878 if (mPopupWindow == null) { 7879 mPopupWindow = new EasyEditPopupWindow(); 7880 mHidePopup = new Runnable() { 7881 @Override 7882 public void run() { 7883 hide(); 7884 } 7885 }; 7886 } 7887 mPopupWindow.show(mEasyEditSpan); 7888 TextView.this.removeCallbacks(mHidePopup); 7889 TextView.this.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS); 7890 } 7891 } 7892 } 7893 7894 /** 7895 * Adjusts the spans by removing all of them except the last one. 7896 */ 7897 private void adjustSpans(CharSequence buffer) { 7898 // This method enforces that only one easy edit span is attached to the text. 7899 // A better way to enforce this would be to listen for onSpanAdded, but this method 7900 // cannot be used in this scenario as no notification is triggered when a text with 7901 // spans is inserted into a text. 7902 if (buffer instanceof Spannable) { 7903 Spannable spannable = (Spannable) buffer; 7904 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 7905 EasyEditSpan.class); 7906 for (int i = 0; i < spans.length - 1; i++) { 7907 spannable.removeSpan(spans[i]); 7908 } 7909 } 7910 } 7911 7912 /** 7913 * Removes all the {@link EasyEditSpan} currently attached. 7914 */ 7915 private void removeSpans(CharSequence buffer) { 7916 if (buffer instanceof Spannable) { 7917 Spannable spannable = (Spannable) buffer; 7918 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 7919 EasyEditSpan.class); 7920 for (int i = 0; i < spans.length; i++) { 7921 spannable.removeSpan(spans[i]); 7922 } 7923 } 7924 } 7925 7926 private EasyEditSpan getSpan(Spanned spanned) { 7927 EasyEditSpan[] easyEditSpans = spanned.getSpans(0, spanned.length(), 7928 EasyEditSpan.class); 7929 if (easyEditSpans.length == 0) { 7930 return null; 7931 } else { 7932 return easyEditSpans[0]; 7933 } 7934 } 7935 } 7936 7937 /** 7938 * Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled 7939 * by {@link EasyEditSpanController}. 7940 */ 7941 private class EasyEditPopupWindow extends PinnedPopupWindow 7942 implements OnClickListener { 7943 private static final int POPUP_TEXT_LAYOUT = 7944 com.android.internal.R.layout.text_edit_action_popup_text; 7945 private TextView mDeleteTextView; 7946 private EasyEditSpan mEasyEditSpan; 7947 7948 @Override 7949 protected void createPopupWindow() { 7950 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 7951 com.android.internal.R.attr.textSelectHandleWindowStyle); 7952 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 7953 mPopupWindow.setClippingEnabled(true); 7954 } 7955 7956 @Override 7957 protected void initContentView() { 7958 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 7959 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 7960 mContentView = linearLayout; 7961 mContentView.setBackgroundResource( 7962 com.android.internal.R.drawable.text_edit_side_paste_window); 7963 7964 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 7965 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 7966 7967 LayoutParams wrapContent = new LayoutParams( 7968 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 7969 7970 mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 7971 mDeleteTextView.setLayoutParams(wrapContent); 7972 mDeleteTextView.setText(com.android.internal.R.string.delete); 7973 mDeleteTextView.setOnClickListener(this); 7974 mContentView.addView(mDeleteTextView); 7975 } 7976 7977 public void show(EasyEditSpan easyEditSpan) { 7978 mEasyEditSpan = easyEditSpan; 7979 super.show(); 7980 } 7981 7982 @Override 7983 public void onClick(View view) { 7984 if (view == mDeleteTextView) { 7985 deleteText(); 7986 } 7987 } 7988 7989 private void deleteText() { 7990 Editable editable = (Editable) mText; 7991 int start = editable.getSpanStart(mEasyEditSpan); 7992 int end = editable.getSpanEnd(mEasyEditSpan); 7993 if (start >= 0 && end >= 0) { 7994 editable.delete(start, end); 7995 } 7996 } 7997 7998 @Override 7999 protected int getTextOffset() { 8000 // Place the pop-up at the end of the span 8001 Editable editable = (Editable) mText; 8002 return editable.getSpanEnd(mEasyEditSpan); 8003 } 8004 8005 @Override 8006 protected int getVerticalLocalPosition(int line) { 8007 return mLayout.getLineBottom(line); 8008 } 8009 8010 @Override 8011 protected int clipVertically(int positionY) { 8012 // As we display the pop-up below the span, no vertical clipping is required. 8013 return positionY; 8014 } 8015 } 8016 8017 private class ChangeWatcher implements TextWatcher, SpanWatcher { 8018 8019 private CharSequence mBeforeText; 8020 8021 private EasyEditSpanController mEasyEditSpanController; 8022 8023 private ChangeWatcher() { 8024 mEasyEditSpanController = new EasyEditSpanController(); 8025 } 8026 8027 public void beforeTextChanged(CharSequence buffer, int start, 8028 int before, int after) { 8029 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 8030 + " before=" + before + " after=" + after + ": " + buffer); 8031 8032 if (AccessibilityManager.getInstance(mContext).isEnabled() 8033 && !isPasswordInputType(mInputType) 8034 && !hasPasswordTransformationMethod()) { 8035 mBeforeText = buffer.toString(); 8036 } 8037 8038 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 8039 } 8040 8041 public void onTextChanged(CharSequence buffer, int start, 8042 int before, int after) { 8043 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 8044 + " before=" + before + " after=" + after + ": " + buffer); 8045 TextView.this.handleTextChanged(buffer, start, before, after); 8046 8047 mEasyEditSpanController.onTextChange(buffer); 8048 8049 if (AccessibilityManager.getInstance(mContext).isEnabled() && 8050 (isFocused() || isSelected() && isShown())) { 8051 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 8052 mBeforeText = null; 8053 } 8054 } 8055 8056 public void afterTextChanged(Editable buffer) { 8057 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 8058 TextView.this.sendAfterTextChanged(buffer); 8059 8060 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 8061 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 8062 } 8063 } 8064 8065 public void onSpanChanged(Spannable buf, 8066 Object what, int s, int e, int st, int en) { 8067 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 8068 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 8069 TextView.this.spanChange(buf, what, s, st, e, en); 8070 } 8071 8072 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 8073 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 8074 + " what=" + what + ": " + buf); 8075 TextView.this.spanChange(buf, what, -1, s, -1, e); 8076 } 8077 8078 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 8079 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 8080 + " what=" + what + ": " + buf); 8081 TextView.this.spanChange(buf, what, s, -1, e, -1); 8082 } 8083 8084 private void hideControllers() { 8085 mEasyEditSpanController.hide(); 8086 } 8087 } 8088 8089 /** 8090 * @hide 8091 */ 8092 @Override 8093 public void dispatchFinishTemporaryDetach() { 8094 mDispatchTemporaryDetach = true; 8095 super.dispatchFinishTemporaryDetach(); 8096 mDispatchTemporaryDetach = false; 8097 } 8098 8099 @Override 8100 public void onStartTemporaryDetach() { 8101 super.onStartTemporaryDetach(); 8102 // Only track when onStartTemporaryDetach() is called directly, 8103 // usually because this instance is an editable field in a list 8104 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 8105 8106 // Because of View recycling in ListView, there is no easy way to know when a TextView with 8107 // selection becomes visible again. Until a better solution is found, stop text selection 8108 // mode (if any) as soon as this TextView is recycled. 8109 hideControllers(); 8110 } 8111 8112 @Override 8113 public void onFinishTemporaryDetach() { 8114 super.onFinishTemporaryDetach(); 8115 // Only track when onStartTemporaryDetach() is called directly, 8116 // usually because this instance is an editable field in a list 8117 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 8118 } 8119 8120 @Override 8121 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 8122 if (mTemporaryDetach) { 8123 // If we are temporarily in the detach state, then do nothing. 8124 super.onFocusChanged(focused, direction, previouslyFocusedRect); 8125 return; 8126 } 8127 8128 mShowCursor = SystemClock.uptimeMillis(); 8129 8130 ensureEndedBatchEdit(); 8131 8132 if (focused) { 8133 int selStart = getSelectionStart(); 8134 int selEnd = getSelectionEnd(); 8135 8136 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 8137 // mode for these, unless there was a specific selection already started. 8138 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 8139 selEnd == mText.length(); 8140 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 8141 8142 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 8143 // If a tap was used to give focus to that view, move cursor at tap position. 8144 // Has to be done before onTakeFocus, which can be overloaded. 8145 final int lastTapPosition = getLastTapPosition(); 8146 if (lastTapPosition >= 0) { 8147 Selection.setSelection((Spannable) mText, lastTapPosition); 8148 } 8149 8150 if (mMovement != null) { 8151 mMovement.onTakeFocus(this, (Spannable) mText, direction); 8152 } 8153 8154 // The DecorView does not have focus when the 'Done' ExtractEditText button is 8155 // pressed. Since it is the ViewAncestor's mView, it requests focus before 8156 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 8157 // This special case ensure that we keep current selection in that case. 8158 // It would be better to know why the DecorView does not have focus at that time. 8159 if (((this instanceof ExtractEditText) || mSelectionMoved) && 8160 selStart >= 0 && selEnd >= 0) { 8161 /* 8162 * Someone intentionally set the selection, so let them 8163 * do whatever it is that they wanted to do instead of 8164 * the default on-focus behavior. We reset the selection 8165 * here instead of just skipping the onTakeFocus() call 8166 * because some movement methods do something other than 8167 * just setting the selection in theirs and we still 8168 * need to go through that path. 8169 */ 8170 Selection.setSelection((Spannable) mText, selStart, selEnd); 8171 } 8172 8173 if (mSelectAllOnFocus) { 8174 selectAll(); 8175 } 8176 8177 mTouchFocusSelected = true; 8178 } 8179 8180 mFrozenWithFocus = false; 8181 mSelectionMoved = false; 8182 8183 if (mText instanceof Spannable) { 8184 Spannable sp = (Spannable) mText; 8185 MetaKeyKeyListener.resetMetaState(sp); 8186 } 8187 8188 makeBlink(); 8189 8190 if (mError != null) { 8191 showError(); 8192 } 8193 } else { 8194 if (mError != null) { 8195 hideError(); 8196 } 8197 // Don't leave us in the middle of a batch edit. 8198 onEndBatchEdit(); 8199 8200 if (this instanceof ExtractEditText) { 8201 // terminateTextSelectionMode removes selection, which we want to keep when 8202 // ExtractEditText goes out of focus. 8203 final int selStart = getSelectionStart(); 8204 final int selEnd = getSelectionEnd(); 8205 hideControllers(); 8206 Selection.setSelection((Spannable) mText, selStart, selEnd); 8207 } else { 8208 hideControllers(); 8209 downgradeEasyCorrectionSpans(); 8210 } 8211 8212 // No need to create the controller 8213 if (mSelectionModifierCursorController != null) { 8214 mSelectionModifierCursorController.resetTouchOffsets(); 8215 } 8216 } 8217 8218 startStopMarquee(focused); 8219 8220 if (mTransformation != null) { 8221 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 8222 } 8223 8224 super.onFocusChanged(focused, direction, previouslyFocusedRect); 8225 } 8226 8227 private int getLastTapPosition() { 8228 // No need to create the controller at that point, no last tap position saved 8229 if (mSelectionModifierCursorController != null) { 8230 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 8231 if (lastTapPosition >= 0) { 8232 // Safety check, should not be possible. 8233 if (lastTapPosition > mText.length()) { 8234 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 8235 + mText.length() + ")"); 8236 lastTapPosition = mText.length(); 8237 } 8238 return lastTapPosition; 8239 } 8240 } 8241 8242 return -1; 8243 } 8244 8245 @Override 8246 public void onWindowFocusChanged(boolean hasWindowFocus) { 8247 super.onWindowFocusChanged(hasWindowFocus); 8248 8249 if (hasWindowFocus) { 8250 if (mBlink != null) { 8251 mBlink.uncancel(); 8252 makeBlink(); 8253 } 8254 } else { 8255 if (mBlink != null) { 8256 mBlink.cancel(); 8257 } 8258 // Don't leave us in the middle of a batch edit. 8259 onEndBatchEdit(); 8260 if (mInputContentType != null) { 8261 mInputContentType.enterDown = false; 8262 } 8263 8264 hideControllers(); 8265 if (mSuggestionsPopupWindow != null) { 8266 mSuggestionsPopupWindow.onParentLostFocus(); 8267 } 8268 } 8269 8270 startStopMarquee(hasWindowFocus); 8271 } 8272 8273 @Override 8274 protected void onVisibilityChanged(View changedView, int visibility) { 8275 super.onVisibilityChanged(changedView, visibility); 8276 if (visibility != VISIBLE) { 8277 hideControllers(); 8278 } 8279 } 8280 8281 /** 8282 * Use {@link BaseInputConnection#removeComposingSpans 8283 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 8284 * state from this text view. 8285 */ 8286 public void clearComposingText() { 8287 if (mText instanceof Spannable) { 8288 BaseInputConnection.removeComposingSpans((Spannable)mText); 8289 } 8290 } 8291 8292 @Override 8293 public void setSelected(boolean selected) { 8294 boolean wasSelected = isSelected(); 8295 8296 super.setSelected(selected); 8297 8298 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 8299 if (selected) { 8300 startMarquee(); 8301 } else { 8302 stopMarquee(); 8303 } 8304 } 8305 } 8306 8307 @Override 8308 public boolean onTouchEvent(MotionEvent event) { 8309 final int action = event.getActionMasked(); 8310 8311 if (hasSelectionController()) { 8312 getSelectionController().onTouchEvent(event); 8313 } 8314 8315 if (action == MotionEvent.ACTION_DOWN) { 8316 mLastDownPositionX = event.getX(); 8317 mLastDownPositionY = event.getY(); 8318 8319 // Reset this state; it will be re-set if super.onTouchEvent 8320 // causes focus to move to the view. 8321 mTouchFocusSelected = false; 8322 mIgnoreActionUpEvent = false; 8323 } 8324 8325 final boolean superResult = super.onTouchEvent(event); 8326 8327 /* 8328 * Don't handle the release after a long press, because it will 8329 * move the selection away from whatever the menu action was 8330 * trying to affect. 8331 */ 8332 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 8333 mDiscardNextActionUp = false; 8334 return superResult; 8335 } 8336 8337 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) && 8338 !shouldIgnoreActionUpEvent() && isFocused(); 8339 8340 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 8341 && mText instanceof Spannable && mLayout != null) { 8342 boolean handled = false; 8343 8344 if (mMovement != null) { 8345 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 8346 } 8347 8348 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable) { 8349 // The LinkMovementMethod which should handle taps on links has not been installed 8350 // on non editable text that support text selection. 8351 // We reproduce its behavior here to open links for these. 8352 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 8353 getSelectionEnd(), ClickableSpan.class); 8354 8355 if (links.length != 0) { 8356 links[0].onClick(this); 8357 handled = true; 8358 } 8359 } 8360 8361 if (touchIsFinished && (isTextEditable() || mTextIsSelectable)) { 8362 // Show the IME, except when selecting in read-only text. 8363 final InputMethodManager imm = InputMethodManager.peekInstance(); 8364 viewClicked(imm); 8365 if (!mTextIsSelectable && mSoftInputShownOnFocus) { 8366 handled |= imm != null && imm.showSoftInput(this, 0); 8367 } 8368 8369 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 8370 hideControllers(); 8371 if (!selectAllGotFocus && mText.length() > 0) { 8372 if (mSpellChecker != null) { 8373 // When the cursor moves, the word that was typed may need spell check 8374 mSpellChecker.onSelectionChanged(); 8375 } 8376 if (!extractedTextModeWillBeStarted()) { 8377 if (isCursorInsideEasyCorrectionSpan()) { 8378 showSuggestions(); 8379 } else if (hasInsertionController()) { 8380 getInsertionController().show(); 8381 } 8382 } 8383 } 8384 8385 handled = true; 8386 } 8387 8388 if (handled) { 8389 return true; 8390 } 8391 } 8392 8393 return superResult; 8394 } 8395 8396 /** 8397 * @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}. 8398 */ 8399 private boolean isCursorInsideSuggestionSpan() { 8400 if (!(mText instanceof Spannable)) return false; 8401 8402 SuggestionSpan[] suggestionSpans = ((Spannable) mText).getSpans(getSelectionStart(), 8403 getSelectionEnd(), SuggestionSpan.class); 8404 return (suggestionSpans.length > 0); 8405 } 8406 8407 /** 8408 * @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with 8409 * {@link SuggestionSpan#FLAG_EASY_CORRECT} set. 8410 */ 8411 private boolean isCursorInsideEasyCorrectionSpan() { 8412 Spannable spannable = (Spannable) mText; 8413 SuggestionSpan[] suggestionSpans = spannable.getSpans(getSelectionStart(), 8414 getSelectionEnd(), SuggestionSpan.class); 8415 for (int i = 0; i < suggestionSpans.length; i++) { 8416 if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) { 8417 return true; 8418 } 8419 } 8420 return false; 8421 } 8422 8423 /** 8424 * Downgrades to simple suggestions all the easy correction spans that are not a spell check 8425 * span. 8426 */ 8427 private void downgradeEasyCorrectionSpans() { 8428 if (mText instanceof Spannable) { 8429 Spannable spannable = (Spannable) mText; 8430 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, 8431 spannable.length(), SuggestionSpan.class); 8432 for (int i = 0; i < suggestionSpans.length; i++) { 8433 int flags = suggestionSpans[i].getFlags(); 8434 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 8435 && (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) { 8436 flags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 8437 suggestionSpans[i].setFlags(flags); 8438 } 8439 } 8440 } 8441 } 8442 8443 @Override 8444 public boolean onGenericMotionEvent(MotionEvent event) { 8445 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 8446 try { 8447 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 8448 return true; 8449 } 8450 } catch (AbstractMethodError ex) { 8451 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 8452 // Ignore its absence in case third party applications implemented the 8453 // interface directly. 8454 } 8455 } 8456 return super.onGenericMotionEvent(event); 8457 } 8458 8459 private void prepareCursorControllers() { 8460 boolean windowSupportsHandles = false; 8461 8462 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 8463 if (params instanceof WindowManager.LayoutParams) { 8464 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 8465 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 8466 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 8467 } 8468 8469 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 8470 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 8471 mLayout != null; 8472 8473 if (!mInsertionControllerEnabled) { 8474 hideInsertionPointCursorController(); 8475 if (mInsertionPointCursorController != null) { 8476 mInsertionPointCursorController.onDetached(); 8477 mInsertionPointCursorController = null; 8478 } 8479 } 8480 8481 if (!mSelectionControllerEnabled) { 8482 stopSelectionActionMode(); 8483 if (mSelectionModifierCursorController != null) { 8484 mSelectionModifierCursorController.onDetached(); 8485 mSelectionModifierCursorController = null; 8486 } 8487 } 8488 } 8489 8490 /** 8491 * @return True iff this TextView contains a text that can be edited, or if this is 8492 * a selectable TextView. 8493 */ 8494 private boolean isTextEditable() { 8495 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 8496 } 8497 8498 /** 8499 * Returns true, only while processing a touch gesture, if the initial 8500 * touch down event caused focus to move to the text view and as a result 8501 * its selection changed. Only valid while processing the touch gesture 8502 * of interest. 8503 */ 8504 public boolean didTouchFocusSelect() { 8505 return mTouchFocusSelected; 8506 } 8507 8508 @Override 8509 public void cancelLongPress() { 8510 super.cancelLongPress(); 8511 mIgnoreActionUpEvent = true; 8512 } 8513 8514 /** 8515 * This method is only valid during a touch event. 8516 * 8517 * @return true when the ACTION_UP event should be ignored, false otherwise. 8518 * 8519 * @hide 8520 */ 8521 public boolean shouldIgnoreActionUpEvent() { 8522 return mIgnoreActionUpEvent; 8523 } 8524 8525 @Override 8526 public boolean onTrackballEvent(MotionEvent event) { 8527 if (mMovement != null && mText instanceof Spannable && 8528 mLayout != null) { 8529 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 8530 return true; 8531 } 8532 } 8533 8534 return super.onTrackballEvent(event); 8535 } 8536 8537 public void setScroller(Scroller s) { 8538 mScroller = s; 8539 } 8540 8541 private static class Blink extends Handler implements Runnable { 8542 private final WeakReference<TextView> mView; 8543 private boolean mCancelled; 8544 8545 public Blink(TextView v) { 8546 mView = new WeakReference<TextView>(v); 8547 } 8548 8549 public void run() { 8550 if (mCancelled) { 8551 return; 8552 } 8553 8554 removeCallbacks(Blink.this); 8555 8556 TextView tv = mView.get(); 8557 8558 if (tv != null && tv.shouldBlink()) { 8559 if (tv.mLayout != null) { 8560 tv.invalidateCursorPath(); 8561 } 8562 8563 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 8564 } 8565 } 8566 8567 void cancel() { 8568 if (!mCancelled) { 8569 removeCallbacks(Blink.this); 8570 mCancelled = true; 8571 } 8572 } 8573 8574 void uncancel() { 8575 mCancelled = false; 8576 } 8577 } 8578 8579 /** 8580 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 8581 */ 8582 private boolean shouldBlink() { 8583 if (!isFocused()) return false; 8584 8585 final int start = getSelectionStart(); 8586 if (start < 0) return false; 8587 8588 final int end = getSelectionEnd(); 8589 if (end < 0) return false; 8590 8591 return start == end; 8592 } 8593 8594 private void makeBlink() { 8595 if (isCursorVisible()) { 8596 if (shouldBlink()) { 8597 mShowCursor = SystemClock.uptimeMillis(); 8598 if (mBlink == null) mBlink = new Blink(this); 8599 mBlink.removeCallbacks(mBlink); 8600 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 8601 } 8602 } else { 8603 if (mBlink != null) mBlink.removeCallbacks(mBlink); 8604 } 8605 } 8606 8607 @Override 8608 protected float getLeftFadingEdgeStrength() { 8609 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8610 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8611 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8612 if (mMarquee != null && !mMarquee.isStopped()) { 8613 final Marquee marquee = mMarquee; 8614 if (marquee.shouldDrawLeftFade()) { 8615 return marquee.mScroll / getHorizontalFadingEdgeLength(); 8616 } else { 8617 return 0.0f; 8618 } 8619 } else if (getLineCount() == 1) { 8620 final int layoutDirection = getResolvedLayoutDirection(); 8621 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8622 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8623 case Gravity.LEFT: 8624 return 0.0f; 8625 case Gravity.RIGHT: 8626 return (mLayout.getLineRight(0) - (mRight - mLeft) - 8627 getCompoundPaddingLeft() - getCompoundPaddingRight() - 8628 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 8629 case Gravity.CENTER_HORIZONTAL: 8630 return 0.0f; 8631 } 8632 } 8633 } 8634 return super.getLeftFadingEdgeStrength(); 8635 } 8636 8637 @Override 8638 protected float getRightFadingEdgeStrength() { 8639 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8640 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8641 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8642 if (mMarquee != null && !mMarquee.isStopped()) { 8643 final Marquee marquee = mMarquee; 8644 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 8645 } else if (getLineCount() == 1) { 8646 final int layoutDirection = getResolvedLayoutDirection(); 8647 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8648 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8649 case Gravity.LEFT: 8650 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 8651 getCompoundPaddingRight(); 8652 final float lineWidth = mLayout.getLineWidth(0); 8653 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 8654 case Gravity.RIGHT: 8655 return 0.0f; 8656 case Gravity.CENTER_HORIZONTAL: 8657 case Gravity.FILL_HORIZONTAL: 8658 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 8659 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 8660 getHorizontalFadingEdgeLength(); 8661 } 8662 } 8663 } 8664 return super.getRightFadingEdgeStrength(); 8665 } 8666 8667 @Override 8668 protected int computeHorizontalScrollRange() { 8669 if (mLayout != null) { 8670 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 8671 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 8672 } 8673 8674 return super.computeHorizontalScrollRange(); 8675 } 8676 8677 @Override 8678 protected int computeVerticalScrollRange() { 8679 if (mLayout != null) 8680 return mLayout.getHeight(); 8681 8682 return super.computeVerticalScrollRange(); 8683 } 8684 8685 @Override 8686 protected int computeVerticalScrollExtent() { 8687 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 8688 } 8689 8690 @Override 8691 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 8692 super.findViewsWithText(outViews, searched, flags); 8693 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 8694 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 8695 String searchedLowerCase = searched.toString().toLowerCase(); 8696 String textLowerCase = mText.toString().toLowerCase(); 8697 if (textLowerCase.contains(searchedLowerCase)) { 8698 outViews.add(this); 8699 } 8700 } 8701 } 8702 8703 public enum BufferType { 8704 NORMAL, SPANNABLE, EDITABLE, 8705 } 8706 8707 /** 8708 * Returns the TextView_textColor attribute from the 8709 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 8710 * from the TextView_textAppearance attribute, if TextView_textColor 8711 * was not set directly. 8712 */ 8713 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 8714 ColorStateList colors; 8715 colors = attrs.getColorStateList(com.android.internal.R.styleable. 8716 TextView_textColor); 8717 8718 if (colors == null) { 8719 int ap = attrs.getResourceId(com.android.internal.R.styleable. 8720 TextView_textAppearance, -1); 8721 if (ap != -1) { 8722 TypedArray appearance; 8723 appearance = context.obtainStyledAttributes(ap, 8724 com.android.internal.R.styleable.TextAppearance); 8725 colors = appearance.getColorStateList(com.android.internal.R.styleable. 8726 TextAppearance_textColor); 8727 appearance.recycle(); 8728 } 8729 } 8730 8731 return colors; 8732 } 8733 8734 /** 8735 * Returns the default color from the TextView_textColor attribute 8736 * from the AttributeSet, if set, or the default color from the 8737 * TextAppearance_textColor from the TextView_textAppearance attribute, 8738 * if TextView_textColor was not set directly. 8739 */ 8740 public static int getTextColor(Context context, 8741 TypedArray attrs, 8742 int def) { 8743 ColorStateList colors = getTextColors(context, attrs); 8744 8745 if (colors == null) { 8746 return def; 8747 } else { 8748 return colors.getDefaultColor(); 8749 } 8750 } 8751 8752 @Override 8753 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 8754 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 8755 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 8756 switch (keyCode) { 8757 case KeyEvent.KEYCODE_A: 8758 if (canSelectText()) { 8759 return onTextContextMenuItem(ID_SELECT_ALL); 8760 } 8761 break; 8762 case KeyEvent.KEYCODE_X: 8763 if (canCut()) { 8764 return onTextContextMenuItem(ID_CUT); 8765 } 8766 break; 8767 case KeyEvent.KEYCODE_C: 8768 if (canCopy()) { 8769 return onTextContextMenuItem(ID_COPY); 8770 } 8771 break; 8772 case KeyEvent.KEYCODE_V: 8773 if (canPaste()) { 8774 return onTextContextMenuItem(ID_PASTE); 8775 } 8776 break; 8777 } 8778 } 8779 return super.onKeyShortcut(keyCode, event); 8780 } 8781 8782 /** 8783 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 8784 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 8785 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 8786 */ 8787 private boolean canSelectText() { 8788 return hasSelectionController() && mText.length() != 0; 8789 } 8790 8791 /** 8792 * Test based on the <i>intrinsic</i> charateristics of the TextView. 8793 * The text must be spannable and the movement method must allow for arbitary selection. 8794 * 8795 * See also {@link #canSelectText()}. 8796 */ 8797 private boolean textCanBeSelected() { 8798 // prepareCursorController() relies on this method. 8799 // If you change this condition, make sure prepareCursorController is called anywhere 8800 // the value of this condition might be changed. 8801 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 8802 return isTextEditable() || (mTextIsSelectable && mText instanceof Spannable && isEnabled()); 8803 } 8804 8805 private boolean canCut() { 8806 if (hasPasswordTransformationMethod()) { 8807 return false; 8808 } 8809 8810 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 8811 return true; 8812 } 8813 8814 return false; 8815 } 8816 8817 private boolean canCopy() { 8818 if (hasPasswordTransformationMethod()) { 8819 return false; 8820 } 8821 8822 if (mText.length() > 0 && hasSelection()) { 8823 return true; 8824 } 8825 8826 return false; 8827 } 8828 8829 private boolean canPaste() { 8830 return (mText instanceof Editable && 8831 mInput != null && 8832 getSelectionStart() >= 0 && 8833 getSelectionEnd() >= 0 && 8834 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 8835 hasPrimaryClip()); 8836 } 8837 8838 private static long packRangeInLong(int start, int end) { 8839 return (((long) start) << 32) | end; 8840 } 8841 8842 private static int extractRangeStartFromLong(long range) { 8843 return (int) (range >>> 32); 8844 } 8845 8846 private static int extractRangeEndFromLong(long range) { 8847 return (int) (range & 0x00000000FFFFFFFFL); 8848 } 8849 8850 private boolean selectAll() { 8851 final int length = mText.length(); 8852 Selection.setSelection((Spannable) mText, 0, length); 8853 return length > 0; 8854 } 8855 8856 /** 8857 * Adjusts selection to the word under last touch offset. 8858 * Return true if the operation was successfully performed. 8859 */ 8860 private boolean selectCurrentWord() { 8861 if (!canSelectText()) { 8862 return false; 8863 } 8864 8865 if (hasPasswordTransformationMethod()) { 8866 // Always select all on a password field. 8867 // Cut/copy menu entries are not available for passwords, but being able to select all 8868 // is however useful to delete or paste to replace the entire content. 8869 return selectAll(); 8870 } 8871 8872 int klass = mInputType & InputType.TYPE_MASK_CLASS; 8873 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 8874 8875 // Specific text field types: select the entire text for these 8876 if (klass == InputType.TYPE_CLASS_NUMBER || 8877 klass == InputType.TYPE_CLASS_PHONE || 8878 klass == InputType.TYPE_CLASS_DATETIME || 8879 variation == InputType.TYPE_TEXT_VARIATION_URI || 8880 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 8881 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 8882 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 8883 return selectAll(); 8884 } 8885 8886 long lastTouchOffsets = getLastTouchOffsets(); 8887 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 8888 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 8889 8890 // Safety check in case standard touch event handling has been bypassed 8891 if (minOffset < 0 || minOffset >= mText.length()) return false; 8892 if (maxOffset < 0 || maxOffset >= mText.length()) return false; 8893 8894 int selectionStart, selectionEnd; 8895 8896 // If a URLSpan (web address, email, phone...) is found at that position, select it. 8897 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 8898 if (urlSpans.length >= 1) { 8899 URLSpan urlSpan = urlSpans[0]; 8900 selectionStart = ((Spanned) mText).getSpanStart(urlSpan); 8901 selectionEnd = ((Spanned) mText).getSpanEnd(urlSpan); 8902 } else { 8903 final WordIterator wordIterator = getWordIterator(); 8904 wordIterator.setCharSequence(mText, minOffset, maxOffset); 8905 8906 selectionStart = wordIterator.getBeginning(minOffset); 8907 if (selectionStart == BreakIterator.DONE) return false; 8908 8909 selectionEnd = wordIterator.getEnd(maxOffset); 8910 if (selectionEnd == BreakIterator.DONE) return false; 8911 8912 if (selectionStart == selectionEnd) { 8913 // Possible when the word iterator does not properly handle the text's language 8914 long range = getCharRange(selectionStart); 8915 selectionStart = extractRangeStartFromLong(range); 8916 selectionEnd = extractRangeEndFromLong(range); 8917 } 8918 } 8919 8920 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8921 return selectionEnd > selectionStart; 8922 } 8923 8924 /** 8925 * This is a temporary method. Future versions may support multi-locale text. 8926 * 8927 * @return The locale that should be used for a word iterator and a spell checker 8928 * in this TextView, based on the current spell checker settings, 8929 * the current IME's locale, or the system default locale. 8930 * @hide 8931 */ 8932 public Locale getTextServicesLocale() { 8933 Locale locale = Locale.getDefault(); 8934 final TextServicesManager textServicesManager = (TextServicesManager) 8935 mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE); 8936 final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true); 8937 if (subtype != null) { 8938 locale = new Locale(subtype.getLocale()); 8939 } 8940 return locale; 8941 } 8942 8943 void onLocaleChanged() { 8944 removeMisspelledSpans((Editable) mText); 8945 // Will be re-created on demand in getWordIterator with the proper new locale 8946 mWordIterator = null; 8947 } 8948 8949 /** 8950 * @hide 8951 */ 8952 public WordIterator getWordIterator() { 8953 if (mWordIterator == null) { 8954 mWordIterator = new WordIterator(getTextServicesLocale()); 8955 } 8956 return mWordIterator; 8957 } 8958 8959 private long getCharRange(int offset) { 8960 final int textLength = mText.length(); 8961 if (offset + 1 < textLength) { 8962 final char currentChar = mText.charAt(offset); 8963 final char nextChar = mText.charAt(offset + 1); 8964 if (Character.isSurrogatePair(currentChar, nextChar)) { 8965 return packRangeInLong(offset, offset + 2); 8966 } 8967 } 8968 if (offset < textLength) { 8969 return packRangeInLong(offset, offset + 1); 8970 } 8971 if (offset - 2 >= 0) { 8972 final char previousChar = mText.charAt(offset - 1); 8973 final char previousPreviousChar = mText.charAt(offset - 2); 8974 if (Character.isSurrogatePair(previousPreviousChar, previousChar)) { 8975 return packRangeInLong(offset - 2, offset); 8976 } 8977 } 8978 if (offset - 1 >= 0) { 8979 return packRangeInLong(offset - 1, offset); 8980 } 8981 return packRangeInLong(offset, offset); 8982 } 8983 8984 private SpellChecker getSpellChecker() { 8985 if (mSpellChecker == null) { 8986 mSpellChecker = new SpellChecker(this); 8987 } 8988 return mSpellChecker; 8989 } 8990 8991 private long getLastTouchOffsets() { 8992 int minOffset, maxOffset; 8993 8994 if (mContextMenuTriggeredByKey) { 8995 minOffset = getSelectionStart(); 8996 maxOffset = getSelectionEnd(); 8997 } else { 8998 SelectionModifierCursorController selectionController = getSelectionController(); 8999 minOffset = selectionController.getMinTouchOffset(); 9000 maxOffset = selectionController.getMaxTouchOffset(); 9001 } 9002 9003 return packRangeInLong(minOffset, maxOffset); 9004 } 9005 9006 @Override 9007 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 9008 super.onPopulateAccessibilityEvent(event); 9009 9010 final boolean isPassword = hasPasswordTransformationMethod(); 9011 if (!isPassword) { 9012 CharSequence text = getTextForAccessibility(); 9013 if (!TextUtils.isEmpty(text)) { 9014 event.getText().add(text); 9015 } 9016 } 9017 } 9018 9019 @Override 9020 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 9021 super.onInitializeAccessibilityEvent(event); 9022 9023 final boolean isPassword = hasPasswordTransformationMethod(); 9024 event.setPassword(isPassword); 9025 9026 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 9027 event.setFromIndex(Selection.getSelectionStart(mText)); 9028 event.setToIndex(Selection.getSelectionEnd(mText)); 9029 event.setItemCount(mText.length()); 9030 } 9031 } 9032 9033 @Override 9034 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 9035 super.onInitializeAccessibilityNodeInfo(info); 9036 9037 final boolean isPassword = hasPasswordTransformationMethod(); 9038 if (!isPassword) { 9039 info.setText(getTextForAccessibility()); 9040 } 9041 info.setPassword(isPassword); 9042 } 9043 9044 @Override 9045 public void sendAccessibilityEvent(int eventType) { 9046 // Do not send scroll events since first they are not interesting for 9047 // accessibility and second such events a generated too frequently. 9048 // For details see the implementation of bringTextIntoView(). 9049 if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 9050 return; 9051 } 9052 super.sendAccessibilityEvent(eventType); 9053 } 9054 9055 /** 9056 * Gets the text reported for accessibility purposes. It is the 9057 * text if not empty or the hint. 9058 * 9059 * @return The accessibility text. 9060 */ 9061 private CharSequence getTextForAccessibility() { 9062 CharSequence text = getText(); 9063 if (TextUtils.isEmpty(text)) { 9064 text = getHint(); 9065 } 9066 return text; 9067 } 9068 9069 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 9070 int fromIndex, int removedCount, int addedCount) { 9071 AccessibilityEvent event = 9072 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 9073 event.setFromIndex(fromIndex); 9074 event.setRemovedCount(removedCount); 9075 event.setAddedCount(addedCount); 9076 event.setBeforeText(beforeText); 9077 sendAccessibilityEventUnchecked(event); 9078 } 9079 9080 /** 9081 * Returns whether this text view is a current input method target. The 9082 * default implementation just checks with {@link InputMethodManager}. 9083 */ 9084 public boolean isInputMethodTarget() { 9085 InputMethodManager imm = InputMethodManager.peekInstance(); 9086 return imm != null && imm.isActive(this); 9087 } 9088 9089 // Selection context mode 9090 private static final int ID_SELECT_ALL = android.R.id.selectAll; 9091 private static final int ID_CUT = android.R.id.cut; 9092 private static final int ID_COPY = android.R.id.copy; 9093 private static final int ID_PASTE = android.R.id.paste; 9094 9095 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 9096 public boolean onMenuItemClick(MenuItem item) { 9097 return onTextContextMenuItem(item.getItemId()); 9098 } 9099 } 9100 9101 /** 9102 * Called when a context menu option for the text view is selected. Currently 9103 * this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut}, 9104 * {@link android.R.id#copy} or {@link android.R.id#paste}. 9105 * 9106 * @return true if the context menu item action was performed. 9107 */ 9108 public boolean onTextContextMenuItem(int id) { 9109 int min = 0; 9110 int max = mText.length(); 9111 9112 if (isFocused()) { 9113 final int selStart = getSelectionStart(); 9114 final int selEnd = getSelectionEnd(); 9115 9116 min = Math.max(0, Math.min(selStart, selEnd)); 9117 max = Math.max(0, Math.max(selStart, selEnd)); 9118 } 9119 9120 switch (id) { 9121 case ID_SELECT_ALL: 9122 // This does not enter text selection mode. Text is highlighted, so that it can be 9123 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 9124 selectAll(); 9125 return true; 9126 9127 case ID_PASTE: 9128 paste(min, max); 9129 return true; 9130 9131 case ID_CUT: 9132 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 9133 ((Editable) mText).delete(min, max); 9134 stopSelectionActionMode(); 9135 return true; 9136 9137 case ID_COPY: 9138 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 9139 stopSelectionActionMode(); 9140 return true; 9141 } 9142 return false; 9143 } 9144 9145 private CharSequence getTransformedText(int start, int end) { 9146 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 9147 } 9148 9149 /** 9150 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 9151 * by [min, max] when replacing this region by paste. 9152 * Note that if there were two spaces (or more) at that position before, they are kept. We just 9153 * make sure we do not add an extra one from the paste content. 9154 */ 9155 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 9156 if (paste.length() > 0) { 9157 if (min > 0) { 9158 final char charBefore = mTransformed.charAt(min - 1); 9159 final char charAfter = paste.charAt(0); 9160 9161 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 9162 // Two spaces at beginning of paste: remove one 9163 final int originalLength = mText.length(); 9164 ((Editable) mText).delete(min - 1, min); 9165 // Due to filters, there is no guarantee that exactly one character was 9166 // removed: count instead. 9167 final int delta = mText.length() - originalLength; 9168 min += delta; 9169 max += delta; 9170 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 9171 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 9172 // No space at beginning of paste: add one 9173 final int originalLength = mText.length(); 9174 ((Editable) mText).replace(min, min, " "); 9175 // Taking possible filters into account as above. 9176 final int delta = mText.length() - originalLength; 9177 min += delta; 9178 max += delta; 9179 } 9180 } 9181 9182 if (max < mText.length()) { 9183 final char charBefore = paste.charAt(paste.length() - 1); 9184 final char charAfter = mTransformed.charAt(max); 9185 9186 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 9187 // Two spaces at end of paste: remove one 9188 ((Editable) mText).delete(max, max + 1); 9189 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 9190 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 9191 // No space at end of paste: add one 9192 ((Editable) mText).replace(max, max, " "); 9193 } 9194 } 9195 } 9196 9197 return packRangeInLong(min, max); 9198 } 9199 9200 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 9201 TextView shadowView = (TextView) inflate(mContext, 9202 com.android.internal.R.layout.text_drag_thumbnail, null); 9203 9204 if (shadowView == null) { 9205 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 9206 } 9207 9208 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 9209 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 9210 } 9211 shadowView.setText(text); 9212 shadowView.setTextColor(getTextColors()); 9213 9214 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 9215 shadowView.setGravity(Gravity.CENTER); 9216 9217 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9218 ViewGroup.LayoutParams.WRAP_CONTENT)); 9219 9220 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 9221 shadowView.measure(size, size); 9222 9223 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 9224 shadowView.invalidate(); 9225 return new DragShadowBuilder(shadowView); 9226 } 9227 9228 private static class DragLocalState { 9229 public TextView sourceTextView; 9230 public int start, end; 9231 9232 public DragLocalState(TextView sourceTextView, int start, int end) { 9233 this.sourceTextView = sourceTextView; 9234 this.start = start; 9235 this.end = end; 9236 } 9237 } 9238 9239 @Override 9240 public boolean performLongClick() { 9241 boolean handled = false; 9242 boolean vibrate = true; 9243 9244 if (super.performLongClick()) { 9245 mDiscardNextActionUp = true; 9246 handled = true; 9247 } 9248 9249 // Long press in empty space moves cursor and shows the Paste affordance if available. 9250 if (!handled && !isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 9251 mInsertionControllerEnabled) { 9252 final int offset = getOffsetForPosition(mLastDownPositionX, mLastDownPositionY); 9253 stopSelectionActionMode(); 9254 Selection.setSelection((Spannable) mText, offset); 9255 getInsertionController().showWithActionPopup(); 9256 handled = true; 9257 vibrate = false; 9258 } 9259 9260 if (!handled && mSelectionActionMode != null) { 9261 if (touchPositionIsInSelection()) { 9262 // Start a drag 9263 final int start = getSelectionStart(); 9264 final int end = getSelectionEnd(); 9265 CharSequence selectedText = getTransformedText(start, end); 9266 ClipData data = ClipData.newPlainText(null, selectedText); 9267 DragLocalState localState = new DragLocalState(this, start, end); 9268 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 9269 stopSelectionActionMode(); 9270 } else { 9271 getSelectionController().hide(); 9272 selectCurrentWord(); 9273 getSelectionController().show(); 9274 } 9275 handled = true; 9276 } 9277 9278 // Start a new selection 9279 if (!handled) { 9280 vibrate = handled = startSelectionActionMode(); 9281 } 9282 9283 if (vibrate) { 9284 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 9285 } 9286 9287 if (handled) { 9288 mDiscardNextActionUp = true; 9289 } 9290 9291 return handled; 9292 } 9293 9294 private boolean touchPositionIsInSelection() { 9295 int selectionStart = getSelectionStart(); 9296 int selectionEnd = getSelectionEnd(); 9297 9298 if (selectionStart == selectionEnd) { 9299 return false; 9300 } 9301 9302 if (selectionStart > selectionEnd) { 9303 int tmp = selectionStart; 9304 selectionStart = selectionEnd; 9305 selectionEnd = tmp; 9306 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 9307 } 9308 9309 SelectionModifierCursorController selectionController = getSelectionController(); 9310 int minOffset = selectionController.getMinTouchOffset(); 9311 int maxOffset = selectionController.getMaxTouchOffset(); 9312 9313 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 9314 } 9315 9316 private PositionListener getPositionListener() { 9317 if (mPositionListener == null) { 9318 mPositionListener = new PositionListener(); 9319 } 9320 return mPositionListener; 9321 } 9322 9323 private interface TextViewPositionListener { 9324 public void updatePosition(int parentPositionX, int parentPositionY, 9325 boolean parentPositionChanged, boolean parentScrolled); 9326 } 9327 9328 private class PositionListener implements ViewTreeObserver.OnPreDrawListener { 9329 // 3 handles 9330 // 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others) 9331 private final int MAXIMUM_NUMBER_OF_LISTENERS = 6; 9332 private TextViewPositionListener[] mPositionListeners = 9333 new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; 9334 private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; 9335 private boolean mPositionHasChanged = true; 9336 // Absolute position of the TextView with respect to its parent window 9337 private int mPositionX, mPositionY; 9338 private int mNumberOfListeners; 9339 private boolean mScrollHasChanged; 9340 9341 public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { 9342 if (mNumberOfListeners == 0) { 9343 updatePosition(); 9344 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9345 vto.addOnPreDrawListener(this); 9346 } 9347 9348 int emptySlotIndex = -1; 9349 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9350 TextViewPositionListener listener = mPositionListeners[i]; 9351 if (listener == positionListener) { 9352 return; 9353 } else if (emptySlotIndex < 0 && listener == null) { 9354 emptySlotIndex = i; 9355 } 9356 } 9357 9358 mPositionListeners[emptySlotIndex] = positionListener; 9359 mCanMove[emptySlotIndex] = canMove; 9360 mNumberOfListeners++; 9361 } 9362 9363 public void removeSubscriber(TextViewPositionListener positionListener) { 9364 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9365 if (mPositionListeners[i] == positionListener) { 9366 mPositionListeners[i] = null; 9367 mNumberOfListeners--; 9368 break; 9369 } 9370 } 9371 9372 if (mNumberOfListeners == 0) { 9373 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9374 vto.removeOnPreDrawListener(this); 9375 } 9376 } 9377 9378 public int getPositionX() { 9379 return mPositionX; 9380 } 9381 9382 public int getPositionY() { 9383 return mPositionY; 9384 } 9385 9386 @Override 9387 public boolean onPreDraw() { 9388 updatePosition(); 9389 9390 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9391 if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) { 9392 TextViewPositionListener positionListener = mPositionListeners[i]; 9393 if (positionListener != null) { 9394 positionListener.updatePosition(mPositionX, mPositionY, 9395 mPositionHasChanged, mScrollHasChanged); 9396 } 9397 } 9398 } 9399 9400 mScrollHasChanged = false; 9401 return true; 9402 } 9403 9404 private void updatePosition() { 9405 TextView.this.getLocationInWindow(mTempCoords); 9406 9407 mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; 9408 9409 mPositionX = mTempCoords[0]; 9410 mPositionY = mTempCoords[1]; 9411 } 9412 9413 public boolean isVisible(int positionX, int positionY) { 9414 final TextView textView = TextView.this; 9415 9416 if (mTempRect == null) mTempRect = new Rect(); 9417 final Rect clip = mTempRect; 9418 clip.left = getCompoundPaddingLeft(); 9419 clip.top = getExtendedPaddingTop(); 9420 clip.right = textView.getWidth() - getCompoundPaddingRight(); 9421 clip.bottom = textView.getHeight() - getExtendedPaddingBottom(); 9422 9423 final ViewParent parent = textView.getParent(); 9424 if (parent == null || !parent.getChildVisibleRect(textView, clip, null)) { 9425 return false; 9426 } 9427 9428 int posX = mPositionX + positionX; 9429 int posY = mPositionY + positionY; 9430 9431 // Offset by 1 to take into account 0.5 and int rounding around getPrimaryHorizontal. 9432 return posX >= clip.left - 1 && posX <= clip.right + 1 && 9433 posY >= clip.top && posY <= clip.bottom; 9434 } 9435 9436 public boolean isOffsetVisible(int offset) { 9437 final int line = mLayout.getLineForOffset(offset); 9438 final int lineBottom = mLayout.getLineBottom(line); 9439 final int primaryHorizontal = (int) mLayout.getPrimaryHorizontal(offset); 9440 return isVisible(primaryHorizontal + viewportToContentHorizontalOffset(), 9441 lineBottom + viewportToContentVerticalOffset()); 9442 } 9443 9444 public void onScrollChanged() { 9445 mScrollHasChanged = true; 9446 } 9447 } 9448 9449 @Override 9450 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 9451 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 9452 if (mPositionListener != null) { 9453 mPositionListener.onScrollChanged(); 9454 } 9455 } 9456 9457 private abstract class PinnedPopupWindow implements TextViewPositionListener { 9458 protected PopupWindow mPopupWindow; 9459 protected ViewGroup mContentView; 9460 int mPositionX, mPositionY; 9461 9462 protected abstract void createPopupWindow(); 9463 protected abstract void initContentView(); 9464 protected abstract int getTextOffset(); 9465 protected abstract int getVerticalLocalPosition(int line); 9466 protected abstract int clipVertically(int positionY); 9467 9468 public PinnedPopupWindow() { 9469 createPopupWindow(); 9470 9471 mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 9472 mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 9473 mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 9474 9475 initContentView(); 9476 9477 LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9478 ViewGroup.LayoutParams.WRAP_CONTENT); 9479 mContentView.setLayoutParams(wrapContent); 9480 9481 mPopupWindow.setContentView(mContentView); 9482 } 9483 9484 public void show() { 9485 TextView.this.getPositionListener().addSubscriber(this, false /* offset is fixed */); 9486 9487 computeLocalPosition(); 9488 9489 final PositionListener positionListener = TextView.this.getPositionListener(); 9490 updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); 9491 } 9492 9493 protected void measureContent() { 9494 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9495 mContentView.measure( 9496 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 9497 View.MeasureSpec.AT_MOST), 9498 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 9499 View.MeasureSpec.AT_MOST)); 9500 } 9501 9502 /* The popup window will be horizontally centered on the getTextOffset() and vertically 9503 * positioned according to viewportToContentHorizontalOffset. 9504 * 9505 * This method assumes that mContentView has properly been measured from its content. */ 9506 private void computeLocalPosition() { 9507 measureContent(); 9508 final int width = mContentView.getMeasuredWidth(); 9509 final int offset = getTextOffset(); 9510 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f); 9511 mPositionX += viewportToContentHorizontalOffset(); 9512 9513 final int line = mLayout.getLineForOffset(offset); 9514 mPositionY = getVerticalLocalPosition(line); 9515 mPositionY += viewportToContentVerticalOffset(); 9516 } 9517 9518 private void updatePosition(int parentPositionX, int parentPositionY) { 9519 int positionX = parentPositionX + mPositionX; 9520 int positionY = parentPositionY + mPositionY; 9521 9522 positionY = clipVertically(positionY); 9523 9524 // Horizontal clipping 9525 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9526 final int width = mContentView.getMeasuredWidth(); 9527 positionX = Math.min(displayMetrics.widthPixels - width, positionX); 9528 positionX = Math.max(0, positionX); 9529 9530 if (isShowing()) { 9531 mPopupWindow.update(positionX, positionY, -1, -1); 9532 } else { 9533 mPopupWindow.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 9534 positionX, positionY); 9535 } 9536 } 9537 9538 public void hide() { 9539 mPopupWindow.dismiss(); 9540 TextView.this.getPositionListener().removeSubscriber(this); 9541 } 9542 9543 @Override 9544 public void updatePosition(int parentPositionX, int parentPositionY, 9545 boolean parentPositionChanged, boolean parentScrolled) { 9546 // Either parentPositionChanged or parentScrolled is true, check if still visible 9547 if (isShowing() && getPositionListener().isOffsetVisible(getTextOffset())) { 9548 if (parentScrolled) computeLocalPosition(); 9549 updatePosition(parentPositionX, parentPositionY); 9550 } else { 9551 hide(); 9552 } 9553 } 9554 9555 public boolean isShowing() { 9556 return mPopupWindow.isShowing(); 9557 } 9558 } 9559 9560 private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener { 9561 private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE; 9562 private static final int ADD_TO_DICTIONARY = -1; 9563 private static final int DELETE_TEXT = -2; 9564 private SuggestionInfo[] mSuggestionInfos; 9565 private int mNumberOfSuggestions; 9566 private boolean mCursorWasVisibleBeforeSuggestions; 9567 private boolean mIsShowingUp = false; 9568 private SuggestionAdapter mSuggestionsAdapter; 9569 private final Comparator<SuggestionSpan> mSuggestionSpanComparator; 9570 private final HashMap<SuggestionSpan, Integer> mSpansLengths; 9571 9572 private class CustomPopupWindow extends PopupWindow { 9573 public CustomPopupWindow(Context context, int defStyle) { 9574 super(context, null, defStyle); 9575 } 9576 9577 @Override 9578 public void dismiss() { 9579 super.dismiss(); 9580 9581 TextView.this.getPositionListener().removeSubscriber(SuggestionsPopupWindow.this); 9582 9583 // Safe cast since show() checks that mText is an Editable 9584 ((Spannable) mText).removeSpan(mSuggestionRangeSpan); 9585 9586 setCursorVisible(mCursorWasVisibleBeforeSuggestions); 9587 if (hasInsertionController()) { 9588 getInsertionController().show(); 9589 } 9590 } 9591 } 9592 9593 public SuggestionsPopupWindow() { 9594 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 9595 mSuggestionSpanComparator = new SuggestionSpanComparator(); 9596 mSpansLengths = new HashMap<SuggestionSpan, Integer>(); 9597 } 9598 9599 @Override 9600 protected void createPopupWindow() { 9601 mPopupWindow = new CustomPopupWindow(TextView.this.mContext, 9602 com.android.internal.R.attr.textSuggestionsWindowStyle); 9603 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 9604 mPopupWindow.setFocusable(true); 9605 mPopupWindow.setClippingEnabled(false); 9606 } 9607 9608 @Override 9609 protected void initContentView() { 9610 ListView listView = new ListView(TextView.this.getContext()); 9611 mSuggestionsAdapter = new SuggestionAdapter(); 9612 listView.setAdapter(mSuggestionsAdapter); 9613 listView.setOnItemClickListener(this); 9614 mContentView = listView; 9615 9616 // Inflate the suggestion items once and for all. + 2 for add to dictionary and delete 9617 mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2]; 9618 for (int i = 0; i < mSuggestionInfos.length; i++) { 9619 mSuggestionInfos[i] = new SuggestionInfo(); 9620 } 9621 } 9622 9623 public boolean isShowingUp() { 9624 return mIsShowingUp; 9625 } 9626 9627 public void onParentLostFocus() { 9628 mIsShowingUp = false; 9629 } 9630 9631 private class SuggestionInfo { 9632 int suggestionStart, suggestionEnd; // range of actual suggestion within text 9633 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 9634 int suggestionIndex; // the index of this suggestion inside suggestionSpan 9635 SpannableStringBuilder text = new SpannableStringBuilder(); 9636 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext, 9637 android.R.style.TextAppearance_SuggestionHighlight); 9638 } 9639 9640 private class SuggestionAdapter extends BaseAdapter { 9641 private LayoutInflater mInflater = (LayoutInflater) TextView.this.mContext. 9642 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 9643 9644 @Override 9645 public int getCount() { 9646 return mNumberOfSuggestions; 9647 } 9648 9649 @Override 9650 public Object getItem(int position) { 9651 return mSuggestionInfos[position]; 9652 } 9653 9654 @Override 9655 public long getItemId(int position) { 9656 return position; 9657 } 9658 9659 @Override 9660 public View getView(int position, View convertView, ViewGroup parent) { 9661 TextView textView = (TextView) convertView; 9662 9663 if (textView == null) { 9664 textView = (TextView) mInflater.inflate(mTextEditSuggestionItemLayout, parent, 9665 false); 9666 } 9667 9668 final SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9669 textView.setText(suggestionInfo.text); 9670 9671 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9672 textView.setCompoundDrawablesWithIntrinsicBounds( 9673 com.android.internal.R.drawable.ic_suggestions_add, 0, 0, 0); 9674 } else if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9675 textView.setCompoundDrawablesWithIntrinsicBounds( 9676 com.android.internal.R.drawable.ic_suggestions_delete, 0, 0, 0); 9677 } else { 9678 textView.setCompoundDrawables(null, null, null, null); 9679 } 9680 9681 return textView; 9682 } 9683 } 9684 9685 private class SuggestionSpanComparator implements Comparator<SuggestionSpan> { 9686 public int compare(SuggestionSpan span1, SuggestionSpan span2) { 9687 final int flag1 = span1.getFlags(); 9688 final int flag2 = span2.getFlags(); 9689 if (flag1 != flag2) { 9690 // The order here should match what is used in updateDrawState 9691 final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 9692 final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 9693 final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0; 9694 final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0; 9695 if (easy1 && !misspelled1) return -1; 9696 if (easy2 && !misspelled2) return 1; 9697 if (misspelled1) return -1; 9698 if (misspelled2) return 1; 9699 } 9700 9701 return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue(); 9702 } 9703 } 9704 9705 /** 9706 * Returns the suggestion spans that cover the current cursor position. The suggestion 9707 * spans are sorted according to the length of text that they are attached to. 9708 */ 9709 private SuggestionSpan[] getSuggestionSpans() { 9710 int pos = TextView.this.getSelectionStart(); 9711 Spannable spannable = (Spannable) TextView.this.mText; 9712 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 9713 9714 mSpansLengths.clear(); 9715 for (SuggestionSpan suggestionSpan : suggestionSpans) { 9716 int start = spannable.getSpanStart(suggestionSpan); 9717 int end = spannable.getSpanEnd(suggestionSpan); 9718 mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start)); 9719 } 9720 9721 // The suggestions are sorted according to their types (easy correction first, then 9722 // misspelled) and to the length of the text that they cover (shorter first). 9723 Arrays.sort(suggestionSpans, mSuggestionSpanComparator); 9724 return suggestionSpans; 9725 } 9726 9727 @Override 9728 public void show() { 9729 if (!(mText instanceof Editable)) return; 9730 9731 updateSuggestions(); 9732 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 9733 setCursorVisible(false); 9734 mIsShowingUp = true; 9735 super.show(); 9736 } 9737 9738 @Override 9739 protected void measureContent() { 9740 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9741 final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec( 9742 displayMetrics.widthPixels, View.MeasureSpec.AT_MOST); 9743 final int verticalMeasure = View.MeasureSpec.makeMeasureSpec( 9744 displayMetrics.heightPixels, View.MeasureSpec.AT_MOST); 9745 9746 int width = 0; 9747 View view = null; 9748 for (int i = 0; i < mNumberOfSuggestions; i++) { 9749 view = mSuggestionsAdapter.getView(i, view, mContentView); 9750 view.getLayoutParams().width = LayoutParams.WRAP_CONTENT; 9751 view.measure(horizontalMeasure, verticalMeasure); 9752 width = Math.max(width, view.getMeasuredWidth()); 9753 } 9754 9755 // Enforce the width based on actual text widths 9756 mContentView.measure( 9757 View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), 9758 verticalMeasure); 9759 9760 Drawable popupBackground = mPopupWindow.getBackground(); 9761 if (popupBackground != null) { 9762 if (mTempRect == null) mTempRect = new Rect(); 9763 popupBackground.getPadding(mTempRect); 9764 width += mTempRect.left + mTempRect.right; 9765 } 9766 mPopupWindow.setWidth(width); 9767 } 9768 9769 @Override 9770 protected int getTextOffset() { 9771 return getSelectionStart(); 9772 } 9773 9774 @Override 9775 protected int getVerticalLocalPosition(int line) { 9776 return mLayout.getLineBottom(line); 9777 } 9778 9779 @Override 9780 protected int clipVertically(int positionY) { 9781 final int height = mContentView.getMeasuredHeight(); 9782 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9783 return Math.min(positionY, displayMetrics.heightPixels - height); 9784 } 9785 9786 @Override 9787 public void hide() { 9788 super.hide(); 9789 } 9790 9791 private void updateSuggestions() { 9792 Spannable spannable = (Spannable) TextView.this.mText; 9793 SuggestionSpan[] suggestionSpans = getSuggestionSpans(); 9794 9795 final int nbSpans = suggestionSpans.length; 9796 9797 mNumberOfSuggestions = 0; 9798 int spanUnionStart = mText.length(); 9799 int spanUnionEnd = 0; 9800 9801 SuggestionSpan misspelledSpan = null; 9802 int underlineColor = 0; 9803 9804 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 9805 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 9806 final int spanStart = spannable.getSpanStart(suggestionSpan); 9807 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 9808 spanUnionStart = Math.min(spanStart, spanUnionStart); 9809 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 9810 9811 if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) { 9812 misspelledSpan = suggestionSpan; 9813 } 9814 9815 // The first span dictates the background color of the highlighted text 9816 if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor(); 9817 9818 String[] suggestions = suggestionSpan.getSuggestions(); 9819 int nbSuggestions = suggestions.length; 9820 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 9821 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9822 suggestionInfo.suggestionSpan = suggestionSpan; 9823 suggestionInfo.suggestionIndex = suggestionIndex; 9824 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9825 suggestions[suggestionIndex]); 9826 9827 mNumberOfSuggestions++; 9828 if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) { 9829 // Also end outer for loop 9830 spanIndex = nbSpans; 9831 break; 9832 } 9833 } 9834 } 9835 9836 for (int i = 0; i < mNumberOfSuggestions; i++) { 9837 highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd); 9838 } 9839 9840 // Add to dictionary item is there a span with the misspelled flag 9841 if (misspelledSpan != null) { 9842 final int misspelledStart = spannable.getSpanStart(misspelledSpan); 9843 final int misspelledEnd = spannable.getSpanEnd(misspelledSpan); 9844 if (misspelledStart >= 0 && misspelledEnd > misspelledStart) { 9845 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9846 suggestionInfo.suggestionSpan = misspelledSpan; 9847 suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY; 9848 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9849 getContext().getString(com.android.internal.R.string.addToDictionary)); 9850 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 9851 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9852 9853 mNumberOfSuggestions++; 9854 } 9855 } 9856 9857 // Delete item 9858 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9859 suggestionInfo.suggestionSpan = null; 9860 suggestionInfo.suggestionIndex = DELETE_TEXT; 9861 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9862 getContext().getString(com.android.internal.R.string.deleteText)); 9863 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 9864 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9865 mNumberOfSuggestions++; 9866 9867 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 9868 if (underlineColor == 0) { 9869 // Fallback on the default highlight color when the first span does not provide one 9870 mSuggestionRangeSpan.setBackgroundColor(mHighlightColor); 9871 } else { 9872 final float BACKGROUND_TRANSPARENCY = 0.4f; 9873 final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY); 9874 mSuggestionRangeSpan.setBackgroundColor( 9875 (underlineColor & 0x00FFFFFF) + (newAlpha << 24)); 9876 } 9877 spannable.setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 9878 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9879 9880 mSuggestionsAdapter.notifyDataSetChanged(); 9881 } 9882 9883 private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart, 9884 int unionEnd) { 9885 final Spannable text = (Spannable) mText; 9886 final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan); 9887 final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan); 9888 9889 // Adjust the start/end of the suggestion span 9890 suggestionInfo.suggestionStart = spanStart - unionStart; 9891 suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart 9892 + suggestionInfo.text.length(); 9893 9894 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 9895 suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9896 9897 // Add the text before and after the span. 9898 suggestionInfo.text.insert(0, mText.toString().substring(unionStart, spanStart)); 9899 suggestionInfo.text.append(mText.toString().substring(spanEnd, unionEnd)); 9900 } 9901 9902 @Override 9903 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 9904 TextView textView = (TextView) view; 9905 Editable editable = (Editable) mText; 9906 9907 SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9908 9909 if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9910 final int spanUnionStart = editable.getSpanStart(mSuggestionRangeSpan); 9911 int spanUnionEnd = editable.getSpanEnd(mSuggestionRangeSpan); 9912 if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) { 9913 // Do not leave two adjacent spaces after deletion, or one at beginning of text 9914 if (spanUnionEnd < editable.length() && 9915 Character.isSpaceChar(editable.charAt(spanUnionEnd)) && 9916 (spanUnionStart == 0 || 9917 Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) { 9918 spanUnionEnd = spanUnionEnd + 1; 9919 } 9920 editable.replace(spanUnionStart, spanUnionEnd, ""); 9921 } 9922 hide(); 9923 return; 9924 } 9925 9926 final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan); 9927 final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan); 9928 if (spanStart < 0 || spanEnd < 0) { 9929 // Span has been removed 9930 hide(); 9931 return; 9932 } 9933 final String originalText = mText.toString().substring(spanStart, spanEnd); 9934 9935 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9936 Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT); 9937 intent.putExtra("word", originalText); 9938 intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 9939 getContext().startActivity(intent); 9940 // There is no way to know if the word was indeed added. Re-check. 9941 editable.removeSpan(suggestionInfo.suggestionSpan); 9942 updateSpellCheckSpans(spanStart, spanEnd); 9943 } else { 9944 // SuggestionSpans are removed by replace: save them before 9945 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 9946 SuggestionSpan.class); 9947 final int length = suggestionSpans.length; 9948 int[] suggestionSpansStarts = new int[length]; 9949 int[] suggestionSpansEnds = new int[length]; 9950 int[] suggestionSpansFlags = new int[length]; 9951 for (int i = 0; i < length; i++) { 9952 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 9953 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 9954 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 9955 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 9956 9957 // Remove potential misspelled flags 9958 int suggestionSpanFlags = suggestionSpan.getFlags(); 9959 if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) { 9960 suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED; 9961 suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 9962 suggestionSpan.setFlags(suggestionSpanFlags); 9963 } 9964 } 9965 9966 final int suggestionStart = suggestionInfo.suggestionStart; 9967 final int suggestionEnd = suggestionInfo.suggestionEnd; 9968 final String suggestion = textView.getText().subSequence( 9969 suggestionStart, suggestionEnd).toString(); 9970 editable.replace(spanStart, spanEnd, suggestion); 9971 9972 // Notify source IME of the suggestion pick. Do this before swaping texts. 9973 if (!TextUtils.isEmpty( 9974 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 9975 InputMethodManager imm = InputMethodManager.peekInstance(); 9976 if (imm != null) { 9977 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 9978 suggestionInfo.suggestionIndex); 9979 } 9980 } 9981 9982 // Swap text content between actual text and Suggestion span 9983 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 9984 suggestions[suggestionInfo.suggestionIndex] = originalText; 9985 9986 // Restore previous SuggestionSpans 9987 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 9988 for (int i = 0; i < length; i++) { 9989 // Only spans that include the modified region make sense after replacement 9990 // Spans partially included in the replaced region are removed, there is no 9991 // way to assign them a valid range after replacement 9992 if (suggestionSpansStarts[i] <= spanStart && 9993 suggestionSpansEnds[i] >= spanEnd) { 9994 editable.setSpan(suggestionSpans[i], suggestionSpansStarts[i], 9995 suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]); 9996 } 9997 } 9998 9999 // Move cursor at the end of the replaced word 10000 Selection.setSelection(editable, spanEnd + lengthDifference); 10001 } 10002 10003 hide(); 10004 } 10005 } 10006 10007 /** 10008 * Removes the suggestion spans. 10009 */ 10010 CharSequence removeSuggestionSpans(CharSequence text) { 10011 if (text instanceof Spanned) { 10012 Spannable spannable; 10013 if (text instanceof Spannable) { 10014 spannable = (Spannable) text; 10015 } else { 10016 spannable = new SpannableString(text); 10017 text = spannable; 10018 } 10019 10020 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 10021 for (int i = 0; i < spans.length; i++) { 10022 spannable.removeSpan(spans[i]); 10023 } 10024 } 10025 return text; 10026 } 10027 10028 void showSuggestions() { 10029 if (mSuggestionsPopupWindow == null) { 10030 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 10031 } 10032 hideControllers(); 10033 mSuggestionsPopupWindow.show(); 10034 } 10035 10036 boolean areSuggestionsShown() { 10037 return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing(); 10038 } 10039 10040 /** 10041 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 10042 * by the IME or by the spell checker as the user types. This is done by adding 10043 * {@link SuggestionSpan}s to the text. 10044 * 10045 * When suggestions are enabled (default), this list of suggestions will be displayed when the 10046 * user asks for them on these parts of the text. This value depends on the inputType of this 10047 * TextView. 10048 * 10049 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 10050 * 10051 * In addition, the type variation must be one of 10052 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 10053 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 10054 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 10055 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 10056 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 10057 * 10058 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 10059 * 10060 * @return true if the suggestions popup window is enabled, based on the inputType. 10061 */ 10062 public boolean isSuggestionsEnabled() { 10063 if ((mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) return false; 10064 if ((mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 10065 10066 final int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 10067 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL || 10068 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT || 10069 variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE || 10070 variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE || 10071 variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 10072 } 10073 10074 /** 10075 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 10076 * selection is initiated in this View. 10077 * 10078 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 10079 * Paste actions, depending on what this View supports. 10080 * 10081 * A custom implementation can add new entries in the default menu in its 10082 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The 10083 * default actions can also be removed from the menu using {@link Menu#removeItem(int)} and 10084 * passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} 10085 * or {@link android.R.id#paste} ids as parameters. 10086 * 10087 * Returning false from 10088 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent 10089 * the action mode from being started. 10090 * 10091 * Action click events should be handled by the custom implementation of 10092 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 10093 * 10094 * Note that text selection mode is not started when a TextView receives focus and the 10095 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 10096 * that case, to allow for quick replacement. 10097 */ 10098 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 10099 mCustomSelectionActionModeCallback = actionModeCallback; 10100 } 10101 10102 /** 10103 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 10104 * 10105 * @return The current custom selection callback. 10106 */ 10107 public ActionMode.Callback getCustomSelectionActionModeCallback() { 10108 return mCustomSelectionActionModeCallback; 10109 } 10110 10111 /** 10112 * 10113 * @return true if the selection mode was actually started. 10114 */ 10115 private boolean startSelectionActionMode() { 10116 if (mSelectionActionMode != null) { 10117 // Selection action mode is already started 10118 return false; 10119 } 10120 10121 if (!canSelectText() || !requestFocus()) { 10122 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 10123 return false; 10124 } 10125 10126 if (!hasSelection()) { 10127 // There may already be a selection on device rotation 10128 if (!selectCurrentWord()) { 10129 // No word found under cursor or text selection not permitted. 10130 return false; 10131 } 10132 } 10133 10134 boolean willExtract = extractedTextModeWillBeStarted(); 10135 10136 // Do not start the action mode when extracted text will show up full screen, thus 10137 // immediately hiding the newly created action bar, which would be visually distracting. 10138 if (!willExtract) { 10139 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 10140 mSelectionActionMode = startActionMode(actionModeCallback); 10141 } 10142 10143 final boolean selectionStarted = mSelectionActionMode != null || willExtract; 10144 if (selectionStarted && !mTextIsSelectable && mSoftInputShownOnFocus) { 10145 // Show the IME to be able to replace text, except when selecting non editable text. 10146 final InputMethodManager imm = InputMethodManager.peekInstance(); 10147 if (imm != null) { 10148 imm.showSoftInput(this, 0, null); 10149 } 10150 } 10151 10152 return selectionStarted; 10153 } 10154 10155 private boolean extractedTextModeWillBeStarted() { 10156 if (!(this instanceof ExtractEditText)) { 10157 final InputMethodManager imm = InputMethodManager.peekInstance(); 10158 return imm != null && imm.isFullscreenMode(); 10159 } 10160 return false; 10161 } 10162 10163 private void stopSelectionActionMode() { 10164 if (mSelectionActionMode != null) { 10165 // This will hide the mSelectionModifierCursorController 10166 mSelectionActionMode.finish(); 10167 } 10168 } 10169 10170 /** 10171 * Paste clipboard content between min and max positions. 10172 */ 10173 private void paste(int min, int max) { 10174 ClipboardManager clipboard = 10175 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 10176 ClipData clip = clipboard.getPrimaryClip(); 10177 if (clip != null) { 10178 boolean didFirst = false; 10179 for (int i=0; i<clip.getItemCount(); i++) { 10180 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 10181 if (paste != null) { 10182 if (!didFirst) { 10183 long minMax = prepareSpacesAroundPaste(min, max, paste); 10184 min = extractRangeStartFromLong(minMax); 10185 max = extractRangeEndFromLong(minMax); 10186 Selection.setSelection((Spannable) mText, max); 10187 ((Editable) mText).replace(min, max, paste); 10188 didFirst = true; 10189 } else { 10190 ((Editable) mText).insert(getSelectionEnd(), "\n"); 10191 ((Editable) mText).insert(getSelectionEnd(), paste); 10192 } 10193 } 10194 } 10195 stopSelectionActionMode(); 10196 sLastCutOrCopyTime = 0; 10197 } 10198 } 10199 10200 private void setPrimaryClip(ClipData clip) { 10201 ClipboardManager clipboard = (ClipboardManager) getContext(). 10202 getSystemService(Context.CLIPBOARD_SERVICE); 10203 clipboard.setPrimaryClip(clip); 10204 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 10205 } 10206 10207 /** 10208 * An ActionMode Callback class that is used to provide actions while in text selection mode. 10209 * 10210 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 10211 * on which of these this TextView supports. 10212 */ 10213 private class SelectionActionModeCallback implements ActionMode.Callback { 10214 10215 @Override 10216 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 10217 TypedArray styledAttributes = mContext.obtainStyledAttributes( 10218 com.android.internal.R.styleable.SelectionModeDrawables); 10219 10220 boolean allowText = getContext().getResources().getBoolean( 10221 com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon); 10222 10223 mode.setTitle(allowText ? 10224 mContext.getString(com.android.internal.R.string.textSelectionCABTitle) : null); 10225 mode.setSubtitle(null); 10226 10227 int selectAllIconId = 0; // No icon by default 10228 if (!allowText) { 10229 // Provide an icon, text will not be displayed on smaller screens. 10230 selectAllIconId = styledAttributes.getResourceId( 10231 R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0); 10232 } 10233 10234 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 10235 setIcon(selectAllIconId). 10236 setAlphabeticShortcut('a'). 10237 setShowAsAction( 10238 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10239 10240 if (canCut()) { 10241 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 10242 setIcon(styledAttributes.getResourceId( 10243 R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)). 10244 setAlphabeticShortcut('x'). 10245 setShowAsAction( 10246 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10247 } 10248 10249 if (canCopy()) { 10250 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 10251 setIcon(styledAttributes.getResourceId( 10252 R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)). 10253 setAlphabeticShortcut('c'). 10254 setShowAsAction( 10255 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10256 } 10257 10258 if (canPaste()) { 10259 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 10260 setIcon(styledAttributes.getResourceId( 10261 R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)). 10262 setAlphabeticShortcut('v'). 10263 setShowAsAction( 10264 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10265 } 10266 10267 styledAttributes.recycle(); 10268 10269 if (mCustomSelectionActionModeCallback != null) { 10270 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 10271 // The custom mode can choose to cancel the action mode 10272 return false; 10273 } 10274 } 10275 10276 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 10277 getSelectionController().show(); 10278 return true; 10279 } else { 10280 return false; 10281 } 10282 } 10283 10284 @Override 10285 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 10286 if (mCustomSelectionActionModeCallback != null) { 10287 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 10288 } 10289 return true; 10290 } 10291 10292 @Override 10293 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 10294 if (mCustomSelectionActionModeCallback != null && 10295 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 10296 return true; 10297 } 10298 return onTextContextMenuItem(item.getItemId()); 10299 } 10300 10301 @Override 10302 public void onDestroyActionMode(ActionMode mode) { 10303 if (mCustomSelectionActionModeCallback != null) { 10304 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 10305 } 10306 Selection.setSelection((Spannable) mText, getSelectionEnd()); 10307 10308 if (mSelectionModifierCursorController != null) { 10309 mSelectionModifierCursorController.hide(); 10310 } 10311 10312 mSelectionActionMode = null; 10313 } 10314 } 10315 10316 private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { 10317 private static final int POPUP_TEXT_LAYOUT = 10318 com.android.internal.R.layout.text_edit_action_popup_text; 10319 private TextView mPasteTextView; 10320 private TextView mReplaceTextView; 10321 10322 @Override 10323 protected void createPopupWindow() { 10324 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 10325 com.android.internal.R.attr.textSelectHandleWindowStyle); 10326 mPopupWindow.setClippingEnabled(true); 10327 } 10328 10329 @Override 10330 protected void initContentView() { 10331 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 10332 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 10333 mContentView = linearLayout; 10334 mContentView.setBackgroundResource( 10335 com.android.internal.R.drawable.text_edit_paste_window); 10336 10337 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 10338 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 10339 10340 LayoutParams wrapContent = new LayoutParams( 10341 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 10342 10343 mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10344 mPasteTextView.setLayoutParams(wrapContent); 10345 mContentView.addView(mPasteTextView); 10346 mPasteTextView.setText(com.android.internal.R.string.paste); 10347 mPasteTextView.setOnClickListener(this); 10348 10349 mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10350 mReplaceTextView.setLayoutParams(wrapContent); 10351 mContentView.addView(mReplaceTextView); 10352 mReplaceTextView.setText(com.android.internal.R.string.replace); 10353 mReplaceTextView.setOnClickListener(this); 10354 } 10355 10356 @Override 10357 public void show() { 10358 boolean canPaste = canPaste(); 10359 boolean canSuggest = isSuggestionsEnabled() && isCursorInsideSuggestionSpan(); 10360 mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); 10361 mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE); 10362 10363 if (!canPaste && !canSuggest) return; 10364 10365 super.show(); 10366 } 10367 10368 @Override 10369 public void onClick(View view) { 10370 if (view == mPasteTextView && canPaste()) { 10371 onTextContextMenuItem(ID_PASTE); 10372 hide(); 10373 } else if (view == mReplaceTextView) { 10374 final int middle = (getSelectionStart() + getSelectionEnd()) / 2; 10375 stopSelectionActionMode(); 10376 Selection.setSelection((Spannable) mText, middle); 10377 showSuggestions(); 10378 } 10379 } 10380 10381 @Override 10382 protected int getTextOffset() { 10383 return (getSelectionStart() + getSelectionEnd()) / 2; 10384 } 10385 10386 @Override 10387 protected int getVerticalLocalPosition(int line) { 10388 return mLayout.getLineTop(line) - mContentView.getMeasuredHeight(); 10389 } 10390 10391 @Override 10392 protected int clipVertically(int positionY) { 10393 if (positionY < 0) { 10394 final int offset = getTextOffset(); 10395 final int line = mLayout.getLineForOffset(offset); 10396 positionY += mLayout.getLineBottom(line) - mLayout.getLineTop(line); 10397 positionY += mContentView.getMeasuredHeight(); 10398 10399 // Assumes insertion and selection handles share the same height 10400 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 10401 positionY += handle.getIntrinsicHeight(); 10402 } 10403 10404 return positionY; 10405 } 10406 } 10407 10408 private abstract class HandleView extends View implements TextViewPositionListener { 10409 protected Drawable mDrawable; 10410 protected Drawable mDrawableLtr; 10411 protected Drawable mDrawableRtl; 10412 private final PopupWindow mContainer; 10413 // Position with respect to the parent TextView 10414 private int mPositionX, mPositionY; 10415 private boolean mIsDragging; 10416 // Offset from touch position to mPosition 10417 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 10418 protected int mHotspotX; 10419 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 10420 private float mTouchOffsetY; 10421 // Where the touch position should be on the handle to ensure a maximum cursor visibility 10422 private float mIdealVerticalOffset; 10423 // Parent's (TextView) previous position in window 10424 private int mLastParentX, mLastParentY; 10425 // Transient action popup window for Paste and Replace actions 10426 protected ActionPopupWindow mActionPopupWindow; 10427 // Previous text character offset 10428 private int mPreviousOffset = -1; 10429 // Previous text character offset 10430 private boolean mPositionHasChanged = true; 10431 // Used to delay the appearance of the action popup window 10432 private Runnable mActionPopupShower; 10433 10434 public HandleView(Drawable drawableLtr, Drawable drawableRtl) { 10435 super(TextView.this.mContext); 10436 mContainer = new PopupWindow(TextView.this.mContext, null, 10437 com.android.internal.R.attr.textSelectHandleWindowStyle); 10438 mContainer.setSplitTouchEnabled(true); 10439 mContainer.setClippingEnabled(false); 10440 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 10441 mContainer.setContentView(this); 10442 10443 mDrawableLtr = drawableLtr; 10444 mDrawableRtl = drawableRtl; 10445 10446 updateDrawable(); 10447 10448 final int handleHeight = mDrawable.getIntrinsicHeight(); 10449 mTouchOffsetY = -0.3f * handleHeight; 10450 mIdealVerticalOffset = 0.7f * handleHeight; 10451 } 10452 10453 protected void updateDrawable() { 10454 final int offset = getCurrentCursorOffset(); 10455 final boolean isRtlCharAtOffset = mLayout.isRtlCharAt(offset); 10456 mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr; 10457 mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset); 10458 } 10459 10460 protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun); 10461 10462 // Touch-up filter: number of previous positions remembered 10463 private static final int HISTORY_SIZE = 5; 10464 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 10465 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 10466 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 10467 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 10468 private int mPreviousOffsetIndex = 0; 10469 private int mNumberPreviousOffsets = 0; 10470 10471 private void startTouchUpFilter(int offset) { 10472 mNumberPreviousOffsets = 0; 10473 addPositionToTouchUpFilter(offset); 10474 } 10475 10476 private void addPositionToTouchUpFilter(int offset) { 10477 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 10478 mPreviousOffsets[mPreviousOffsetIndex] = offset; 10479 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 10480 mNumberPreviousOffsets++; 10481 } 10482 10483 private void filterOnTouchUp() { 10484 final long now = SystemClock.uptimeMillis(); 10485 int i = 0; 10486 int index = mPreviousOffsetIndex; 10487 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 10488 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 10489 i++; 10490 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 10491 } 10492 10493 if (i > 0 && i < iMax && 10494 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 10495 positionAtCursorOffset(mPreviousOffsets[index], false); 10496 } 10497 } 10498 10499 public boolean offsetHasBeenChanged() { 10500 return mNumberPreviousOffsets > 1; 10501 } 10502 10503 @Override 10504 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 10505 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 10506 } 10507 10508 public void show() { 10509 if (isShowing()) return; 10510 10511 getPositionListener().addSubscriber(this, true /* local position may change */); 10512 10513 // Make sure the offset is always considered new, even when focusing at same position 10514 mPreviousOffset = -1; 10515 positionAtCursorOffset(getCurrentCursorOffset(), false); 10516 10517 hideActionPopupWindow(); 10518 } 10519 10520 protected void dismiss() { 10521 mIsDragging = false; 10522 mContainer.dismiss(); 10523 onDetached(); 10524 } 10525 10526 public void hide() { 10527 dismiss(); 10528 10529 TextView.this.getPositionListener().removeSubscriber(this); 10530 } 10531 10532 void showActionPopupWindow(int delay) { 10533 if (mActionPopupWindow == null) { 10534 mActionPopupWindow = new ActionPopupWindow(); 10535 } 10536 if (mActionPopupShower == null) { 10537 mActionPopupShower = new Runnable() { 10538 public void run() { 10539 mActionPopupWindow.show(); 10540 } 10541 }; 10542 } else { 10543 TextView.this.removeCallbacks(mActionPopupShower); 10544 } 10545 TextView.this.postDelayed(mActionPopupShower, delay); 10546 } 10547 10548 protected void hideActionPopupWindow() { 10549 if (mActionPopupShower != null) { 10550 TextView.this.removeCallbacks(mActionPopupShower); 10551 } 10552 if (mActionPopupWindow != null) { 10553 mActionPopupWindow.hide(); 10554 } 10555 } 10556 10557 public boolean isShowing() { 10558 return mContainer.isShowing(); 10559 } 10560 10561 private boolean isVisible() { 10562 // Always show a dragging handle. 10563 if (mIsDragging) { 10564 return true; 10565 } 10566 10567 if (isInBatchEditMode()) { 10568 return false; 10569 } 10570 10571 return getPositionListener().isVisible(mPositionX + mHotspotX, mPositionY); 10572 } 10573 10574 public abstract int getCurrentCursorOffset(); 10575 10576 protected abstract void updateSelection(int offset); 10577 10578 public abstract void updatePosition(float x, float y); 10579 10580 protected void positionAtCursorOffset(int offset, boolean parentScrolled) { 10581 // A HandleView relies on the layout, which may be nulled by external methods 10582 if (mLayout == null) { 10583 // Will update controllers' state, hiding them and stopping selection mode if needed 10584 prepareCursorControllers(); 10585 return; 10586 } 10587 10588 if (offset != mPreviousOffset || parentScrolled) { 10589 updateSelection(offset); 10590 addPositionToTouchUpFilter(offset); 10591 final int line = mLayout.getLineForOffset(offset); 10592 10593 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 10594 mPositionY = mLayout.getLineBottom(line); 10595 10596 // Take TextView's padding and scroll into account. 10597 mPositionX += viewportToContentHorizontalOffset(); 10598 mPositionY += viewportToContentVerticalOffset(); 10599 10600 mPreviousOffset = offset; 10601 mPositionHasChanged = true; 10602 } 10603 } 10604 10605 public void updatePosition(int parentPositionX, int parentPositionY, 10606 boolean parentPositionChanged, boolean parentScrolled) { 10607 positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled); 10608 if (parentPositionChanged || mPositionHasChanged) { 10609 if (mIsDragging) { 10610 // Update touchToWindow offset in case of parent scrolling while dragging 10611 if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { 10612 mTouchToWindowOffsetX += parentPositionX - mLastParentX; 10613 mTouchToWindowOffsetY += parentPositionY - mLastParentY; 10614 mLastParentX = parentPositionX; 10615 mLastParentY = parentPositionY; 10616 } 10617 10618 onHandleMoved(); 10619 } 10620 10621 if (isVisible()) { 10622 final int positionX = parentPositionX + mPositionX; 10623 final int positionY = parentPositionY + mPositionY; 10624 if (isShowing()) { 10625 mContainer.update(positionX, positionY, -1, -1); 10626 } else { 10627 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 10628 positionX, positionY); 10629 } 10630 } else { 10631 if (isShowing()) { 10632 dismiss(); 10633 } 10634 } 10635 10636 mPositionHasChanged = false; 10637 } 10638 } 10639 10640 @Override 10641 protected void onDraw(Canvas c) { 10642 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 10643 mDrawable.draw(c); 10644 } 10645 10646 @Override 10647 public boolean onTouchEvent(MotionEvent ev) { 10648 switch (ev.getActionMasked()) { 10649 case MotionEvent.ACTION_DOWN: { 10650 startTouchUpFilter(getCurrentCursorOffset()); 10651 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 10652 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 10653 10654 final PositionListener positionListener = getPositionListener(); 10655 mLastParentX = positionListener.getPositionX(); 10656 mLastParentY = positionListener.getPositionY(); 10657 mIsDragging = true; 10658 break; 10659 } 10660 10661 case MotionEvent.ACTION_MOVE: { 10662 final float rawX = ev.getRawX(); 10663 final float rawY = ev.getRawY(); 10664 10665 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 10666 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 10667 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 10668 float newVerticalOffset; 10669 if (previousVerticalOffset < mIdealVerticalOffset) { 10670 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 10671 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 10672 } else { 10673 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 10674 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 10675 } 10676 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 10677 10678 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 10679 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 10680 10681 updatePosition(newPosX, newPosY); 10682 break; 10683 } 10684 10685 case MotionEvent.ACTION_UP: 10686 filterOnTouchUp(); 10687 mIsDragging = false; 10688 break; 10689 10690 case MotionEvent.ACTION_CANCEL: 10691 mIsDragging = false; 10692 break; 10693 } 10694 return true; 10695 } 10696 10697 public boolean isDragging() { 10698 return mIsDragging; 10699 } 10700 10701 void onHandleMoved() { 10702 hideActionPopupWindow(); 10703 } 10704 10705 public void onDetached() { 10706 hideActionPopupWindow(); 10707 } 10708 } 10709 10710 private class InsertionHandleView extends HandleView { 10711 private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; 10712 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 10713 10714 // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow 10715 private float mDownPositionX, mDownPositionY; 10716 private Runnable mHider; 10717 10718 public InsertionHandleView(Drawable drawable) { 10719 super(drawable, drawable); 10720 } 10721 10722 @Override 10723 public void show() { 10724 super.show(); 10725 10726 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 10727 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 10728 showActionPopupWindow(0); 10729 } 10730 10731 hideAfterDelay(); 10732 } 10733 10734 public void showWithActionPopup() { 10735 show(); 10736 showActionPopupWindow(0); 10737 } 10738 10739 private void hideAfterDelay() { 10740 removeHiderCallback(); 10741 if (mHider == null) { 10742 mHider = new Runnable() { 10743 public void run() { 10744 hide(); 10745 } 10746 }; 10747 } 10748 TextView.this.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); 10749 } 10750 10751 private void removeHiderCallback() { 10752 if (mHider != null) { 10753 TextView.this.removeCallbacks(mHider); 10754 } 10755 } 10756 10757 @Override 10758 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10759 return drawable.getIntrinsicWidth() / 2; 10760 } 10761 10762 @Override 10763 public boolean onTouchEvent(MotionEvent ev) { 10764 final boolean result = super.onTouchEvent(ev); 10765 10766 switch (ev.getActionMasked()) { 10767 case MotionEvent.ACTION_DOWN: 10768 mDownPositionX = ev.getRawX(); 10769 mDownPositionY = ev.getRawY(); 10770 break; 10771 10772 case MotionEvent.ACTION_UP: 10773 if (!offsetHasBeenChanged()) { 10774 final float deltaX = mDownPositionX - ev.getRawX(); 10775 final float deltaY = mDownPositionY - ev.getRawY(); 10776 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 10777 if (distanceSquared < mSquaredTouchSlopDistance) { 10778 if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { 10779 // Tapping on the handle dismisses the displayed action popup 10780 mActionPopupWindow.hide(); 10781 } else { 10782 showWithActionPopup(); 10783 } 10784 } 10785 } 10786 hideAfterDelay(); 10787 break; 10788 10789 case MotionEvent.ACTION_CANCEL: 10790 hideAfterDelay(); 10791 break; 10792 10793 default: 10794 break; 10795 } 10796 10797 return result; 10798 } 10799 10800 @Override 10801 public int getCurrentCursorOffset() { 10802 return TextView.this.getSelectionStart(); 10803 } 10804 10805 @Override 10806 public void updateSelection(int offset) { 10807 Selection.setSelection((Spannable) mText, offset); 10808 } 10809 10810 @Override 10811 public void updatePosition(float x, float y) { 10812 positionAtCursorOffset(getOffsetForPosition(x, y), false); 10813 } 10814 10815 @Override 10816 void onHandleMoved() { 10817 super.onHandleMoved(); 10818 removeHiderCallback(); 10819 } 10820 10821 @Override 10822 public void onDetached() { 10823 super.onDetached(); 10824 removeHiderCallback(); 10825 } 10826 } 10827 10828 private class SelectionStartHandleView extends HandleView { 10829 10830 public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10831 super(drawableLtr, drawableRtl); 10832 } 10833 10834 @Override 10835 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10836 if (isRtlRun) { 10837 return drawable.getIntrinsicWidth() / 4; 10838 } else { 10839 return (drawable.getIntrinsicWidth() * 3) / 4; 10840 } 10841 } 10842 10843 @Override 10844 public int getCurrentCursorOffset() { 10845 return TextView.this.getSelectionStart(); 10846 } 10847 10848 @Override 10849 public void updateSelection(int offset) { 10850 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 10851 updateDrawable(); 10852 } 10853 10854 @Override 10855 public void updatePosition(float x, float y) { 10856 int offset = getOffsetForPosition(x, y); 10857 10858 // Handles can not cross and selection is at least one character 10859 final int selectionEnd = getSelectionEnd(); 10860 if (offset >= selectionEnd) offset = selectionEnd - 1; 10861 10862 positionAtCursorOffset(offset, false); 10863 } 10864 10865 public ActionPopupWindow getActionPopupWindow() { 10866 return mActionPopupWindow; 10867 } 10868 } 10869 10870 private class SelectionEndHandleView extends HandleView { 10871 10872 public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10873 super(drawableLtr, drawableRtl); 10874 } 10875 10876 @Override 10877 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10878 if (isRtlRun) { 10879 return (drawable.getIntrinsicWidth() * 3) / 4; 10880 } else { 10881 return drawable.getIntrinsicWidth() / 4; 10882 } 10883 } 10884 10885 @Override 10886 public int getCurrentCursorOffset() { 10887 return TextView.this.getSelectionEnd(); 10888 } 10889 10890 @Override 10891 public void updateSelection(int offset) { 10892 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 10893 updateDrawable(); 10894 } 10895 10896 @Override 10897 public void updatePosition(float x, float y) { 10898 int offset = getOffsetForPosition(x, y); 10899 10900 // Handles can not cross and selection is at least one character 10901 final int selectionStart = getSelectionStart(); 10902 if (offset <= selectionStart) offset = selectionStart + 1; 10903 10904 positionAtCursorOffset(offset, false); 10905 } 10906 10907 public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { 10908 mActionPopupWindow = actionPopupWindow; 10909 } 10910 } 10911 10912 /** 10913 * A CursorController instance can be used to control a cursor in the text. 10914 * It is not used outside of {@link TextView}. 10915 * @hide 10916 */ 10917 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 10918 /** 10919 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 10920 * See also {@link #hide()}. 10921 */ 10922 public void show(); 10923 10924 /** 10925 * Hide the cursor controller from screen. 10926 * See also {@link #show()}. 10927 */ 10928 public void hide(); 10929 10930 /** 10931 * Called when the view is detached from window. Perform house keeping task, such as 10932 * stopping Runnable thread that would otherwise keep a reference on the context, thus 10933 * preventing the activity from being recycled. 10934 */ 10935 public void onDetached(); 10936 } 10937 10938 private class InsertionPointCursorController implements CursorController { 10939 private InsertionHandleView mHandle; 10940 10941 public void show() { 10942 getHandle().show(); 10943 } 10944 10945 public void showWithActionPopup() { 10946 getHandle().showWithActionPopup(); 10947 } 10948 10949 public void hide() { 10950 if (mHandle != null) { 10951 mHandle.hide(); 10952 } 10953 } 10954 10955 public void onTouchModeChanged(boolean isInTouchMode) { 10956 if (!isInTouchMode) { 10957 hide(); 10958 } 10959 } 10960 10961 private InsertionHandleView getHandle() { 10962 if (mSelectHandleCenter == null) { 10963 mSelectHandleCenter = mContext.getResources().getDrawable( 10964 mTextSelectHandleRes); 10965 } 10966 if (mHandle == null) { 10967 mHandle = new InsertionHandleView(mSelectHandleCenter); 10968 } 10969 return mHandle; 10970 } 10971 10972 @Override 10973 public void onDetached() { 10974 final ViewTreeObserver observer = getViewTreeObserver(); 10975 observer.removeOnTouchModeChangeListener(this); 10976 10977 if (mHandle != null) mHandle.onDetached(); 10978 } 10979 } 10980 10981 private class SelectionModifierCursorController implements CursorController { 10982 private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds 10983 // The cursor controller handles, lazily created when shown. 10984 private SelectionStartHandleView mStartHandle; 10985 private SelectionEndHandleView mEndHandle; 10986 // The offsets of that last touch down event. Remembered to start selection there. 10987 private int mMinTouchOffset, mMaxTouchOffset; 10988 10989 // Double tap detection 10990 private long mPreviousTapUpTime = 0; 10991 private float mPreviousTapPositionX, mPreviousTapPositionY; 10992 10993 SelectionModifierCursorController() { 10994 resetTouchOffsets(); 10995 } 10996 10997 public void show() { 10998 if (isInBatchEditMode()) { 10999 return; 11000 } 11001 initDrawables(); 11002 initHandles(); 11003 hideInsertionPointCursorController(); 11004 } 11005 11006 private void initDrawables() { 11007 if (mSelectHandleLeft == null) { 11008 mSelectHandleLeft = mContext.getResources().getDrawable( 11009 mTextSelectHandleLeftRes); 11010 } 11011 if (mSelectHandleRight == null) { 11012 mSelectHandleRight = mContext.getResources().getDrawable( 11013 mTextSelectHandleRightRes); 11014 } 11015 } 11016 11017 private void initHandles() { 11018 // Lazy object creation has to be done before updatePosition() is called. 11019 if (mStartHandle == null) { 11020 mStartHandle = new SelectionStartHandleView(mSelectHandleLeft, mSelectHandleRight); 11021 } 11022 if (mEndHandle == null) { 11023 mEndHandle = new SelectionEndHandleView(mSelectHandleRight, mSelectHandleLeft); 11024 } 11025 11026 mStartHandle.show(); 11027 mEndHandle.show(); 11028 11029 // Make sure both left and right handles share the same ActionPopupWindow (so that 11030 // moving any of the handles hides the action popup). 11031 mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); 11032 mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); 11033 11034 hideInsertionPointCursorController(); 11035 } 11036 11037 public void hide() { 11038 if (mStartHandle != null) mStartHandle.hide(); 11039 if (mEndHandle != null) mEndHandle.hide(); 11040 } 11041 11042 public void onTouchEvent(MotionEvent event) { 11043 // This is done even when the View does not have focus, so that long presses can start 11044 // selection and tap can move cursor from this tap position. 11045 switch (event.getActionMasked()) { 11046 case MotionEvent.ACTION_DOWN: 11047 final float x = event.getX(); 11048 final float y = event.getY(); 11049 11050 // Remember finger down position, to be able to start selection from there 11051 mMinTouchOffset = mMaxTouchOffset = getOffsetForPosition(x, y); 11052 11053 // Double tap detection 11054 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 11055 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 11056 isPositionOnText(x, y)) { 11057 final float deltaX = x - mPreviousTapPositionX; 11058 final float deltaY = y - mPreviousTapPositionY; 11059 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 11060 if (distanceSquared < mSquaredTouchSlopDistance) { 11061 startSelectionActionMode(); 11062 mDiscardNextActionUp = true; 11063 } 11064 } 11065 11066 mPreviousTapPositionX = x; 11067 mPreviousTapPositionY = y; 11068 break; 11069 11070 case MotionEvent.ACTION_POINTER_DOWN: 11071 case MotionEvent.ACTION_POINTER_UP: 11072 // Handle multi-point gestures. Keep min and max offset positions. 11073 // Only activated for devices that correctly handle multi-touch. 11074 if (mContext.getPackageManager().hasSystemFeature( 11075 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 11076 updateMinAndMaxOffsets(event); 11077 } 11078 break; 11079 11080 case MotionEvent.ACTION_UP: 11081 mPreviousTapUpTime = SystemClock.uptimeMillis(); 11082 break; 11083 } 11084 } 11085 11086 /** 11087 * @param event 11088 */ 11089 private void updateMinAndMaxOffsets(MotionEvent event) { 11090 int pointerCount = event.getPointerCount(); 11091 for (int index = 0; index < pointerCount; index++) { 11092 int offset = getOffsetForPosition(event.getX(index), event.getY(index)); 11093 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 11094 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 11095 } 11096 } 11097 11098 public int getMinTouchOffset() { 11099 return mMinTouchOffset; 11100 } 11101 11102 public int getMaxTouchOffset() { 11103 return mMaxTouchOffset; 11104 } 11105 11106 public void resetTouchOffsets() { 11107 mMinTouchOffset = mMaxTouchOffset = -1; 11108 } 11109 11110 /** 11111 * @return true iff this controller is currently used to move the selection start. 11112 */ 11113 public boolean isSelectionStartDragged() { 11114 return mStartHandle != null && mStartHandle.isDragging(); 11115 } 11116 11117 public void onTouchModeChanged(boolean isInTouchMode) { 11118 if (!isInTouchMode) { 11119 hide(); 11120 } 11121 } 11122 11123 @Override 11124 public void onDetached() { 11125 final ViewTreeObserver observer = getViewTreeObserver(); 11126 observer.removeOnTouchModeChangeListener(this); 11127 11128 if (mStartHandle != null) mStartHandle.onDetached(); 11129 if (mEndHandle != null) mEndHandle.onDetached(); 11130 } 11131 } 11132 11133 private void hideInsertionPointCursorController() { 11134 // No need to create the controller to hide it. 11135 if (mInsertionPointCursorController != null) { 11136 mInsertionPointCursorController.hide(); 11137 } 11138 } 11139 11140 /** 11141 * Hides the insertion controller and stops text selection mode, hiding the selection controller 11142 */ 11143 private void hideControllers() { 11144 hideCursorControllers(); 11145 hideSpanControllers(); 11146 } 11147 11148 private void hideSpanControllers() { 11149 if (mChangeWatcher != null) { 11150 mChangeWatcher.hideControllers(); 11151 } 11152 } 11153 11154 private void hideCursorControllers() { 11155 if (mSuggestionsPopupWindow != null && !mSuggestionsPopupWindow.isShowingUp()) { 11156 // Should be done before hide insertion point controller since it triggers a show of it 11157 mSuggestionsPopupWindow.hide(); 11158 } 11159 hideInsertionPointCursorController(); 11160 stopSelectionActionMode(); 11161 } 11162 11163 /** 11164 * Get the character offset closest to the specified absolute position. A typical use case is to 11165 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 11166 * 11167 * @param x The horizontal absolute position of a point on screen 11168 * @param y The vertical absolute position of a point on screen 11169 * @return the character offset for the character whose position is closest to the specified 11170 * position. Returns -1 if there is no layout. 11171 */ 11172 public int getOffsetForPosition(float x, float y) { 11173 if (getLayout() == null) return -1; 11174 final int line = getLineAtCoordinate(y); 11175 final int offset = getOffsetAtCoordinate(line, x); 11176 return offset; 11177 } 11178 11179 private float convertToLocalHorizontalCoordinate(float x) { 11180 x -= getTotalPaddingLeft(); 11181 // Clamp the position to inside of the view. 11182 x = Math.max(0.0f, x); 11183 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 11184 x += getScrollX(); 11185 return x; 11186 } 11187 11188 private int getLineAtCoordinate(float y) { 11189 y -= getTotalPaddingTop(); 11190 // Clamp the position to inside of the view. 11191 y = Math.max(0.0f, y); 11192 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 11193 y += getScrollY(); 11194 return getLayout().getLineForVertical((int) y); 11195 } 11196 11197 private int getOffsetAtCoordinate(int line, float x) { 11198 x = convertToLocalHorizontalCoordinate(x); 11199 return getLayout().getOffsetForHorizontal(line, x); 11200 } 11201 11202 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 11203 * in the view. Returns false when the position is in the empty space of left/right of text. 11204 */ 11205 private boolean isPositionOnText(float x, float y) { 11206 if (getLayout() == null) return false; 11207 11208 final int line = getLineAtCoordinate(y); 11209 x = convertToLocalHorizontalCoordinate(x); 11210 11211 if (x < getLayout().getLineLeft(line)) return false; 11212 if (x > getLayout().getLineRight(line)) return false; 11213 return true; 11214 } 11215 11216 @Override 11217 public boolean onDragEvent(DragEvent event) { 11218 switch (event.getAction()) { 11219 case DragEvent.ACTION_DRAG_STARTED: 11220 return hasInsertionController(); 11221 11222 case DragEvent.ACTION_DRAG_ENTERED: 11223 TextView.this.requestFocus(); 11224 return true; 11225 11226 case DragEvent.ACTION_DRAG_LOCATION: 11227 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11228 Selection.setSelection((Spannable)mText, offset); 11229 return true; 11230 11231 case DragEvent.ACTION_DROP: 11232 onDrop(event); 11233 return true; 11234 11235 case DragEvent.ACTION_DRAG_ENDED: 11236 case DragEvent.ACTION_DRAG_EXITED: 11237 default: 11238 return true; 11239 } 11240 } 11241 11242 private void onDrop(DragEvent event) { 11243 StringBuilder content = new StringBuilder(""); 11244 ClipData clipData = event.getClipData(); 11245 final int itemCount = clipData.getItemCount(); 11246 for (int i=0; i < itemCount; i++) { 11247 Item item = clipData.getItemAt(i); 11248 content.append(item.coerceToText(TextView.this.mContext)); 11249 } 11250 11251 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11252 11253 Object localState = event.getLocalState(); 11254 DragLocalState dragLocalState = null; 11255 if (localState instanceof DragLocalState) { 11256 dragLocalState = (DragLocalState) localState; 11257 } 11258 boolean dragDropIntoItself = dragLocalState != null && 11259 dragLocalState.sourceTextView == this; 11260 11261 if (dragDropIntoItself) { 11262 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 11263 // A drop inside the original selection discards the drop. 11264 return; 11265 } 11266 } 11267 11268 final int originalLength = mText.length(); 11269 long minMax = prepareSpacesAroundPaste(offset, offset, content); 11270 int min = extractRangeStartFromLong(minMax); 11271 int max = extractRangeEndFromLong(minMax); 11272 11273 Selection.setSelection((Spannable) mText, max); 11274 ((Editable) mText).replace(min, max, content); 11275 11276 if (dragDropIntoItself) { 11277 int dragSourceStart = dragLocalState.start; 11278 int dragSourceEnd = dragLocalState.end; 11279 if (max <= dragSourceStart) { 11280 // Inserting text before selection has shifted positions 11281 final int shift = mText.length() - originalLength; 11282 dragSourceStart += shift; 11283 dragSourceEnd += shift; 11284 } 11285 11286 // Delete original selection 11287 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 11288 11289 // Make sure we do not leave two adjacent spaces. 11290 if ((dragSourceStart == 0 || 11291 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 11292 (dragSourceStart == mText.length() || 11293 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 11294 final int pos = dragSourceStart == mText.length() ? 11295 dragSourceStart - 1 : dragSourceStart; 11296 ((Editable) mText).delete(pos, pos + 1); 11297 } 11298 } 11299 } 11300 11301 /** 11302 * @return True if this view supports insertion handles. 11303 */ 11304 boolean hasInsertionController() { 11305 return mInsertionControllerEnabled; 11306 } 11307 11308 /** 11309 * @return True if this view supports selection handles. 11310 */ 11311 boolean hasSelectionController() { 11312 return mSelectionControllerEnabled; 11313 } 11314 11315 InsertionPointCursorController getInsertionController() { 11316 if (!mInsertionControllerEnabled) { 11317 return null; 11318 } 11319 11320 if (mInsertionPointCursorController == null) { 11321 mInsertionPointCursorController = new InsertionPointCursorController(); 11322 11323 final ViewTreeObserver observer = getViewTreeObserver(); 11324 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 11325 } 11326 11327 return mInsertionPointCursorController; 11328 } 11329 11330 SelectionModifierCursorController getSelectionController() { 11331 if (!mSelectionControllerEnabled) { 11332 return null; 11333 } 11334 11335 if (mSelectionModifierCursorController == null) { 11336 mSelectionModifierCursorController = new SelectionModifierCursorController(); 11337 11338 final ViewTreeObserver observer = getViewTreeObserver(); 11339 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 11340 } 11341 11342 return mSelectionModifierCursorController; 11343 } 11344 11345 boolean isInBatchEditMode() { 11346 final InputMethodState ims = mInputMethodState; 11347 if (ims != null) { 11348 return ims.mBatchEditNesting > 0; 11349 } 11350 return mInBatchEditControllers; 11351 } 11352 11353 @Override 11354 protected void resolveTextDirection() { 11355 if (hasPasswordTransformationMethod()) { 11356 mTextDir = TextDirectionHeuristics.LOCALE; 11357 return; 11358 } 11359 11360 // Always need to resolve layout direction first 11361 final boolean defaultIsRtl = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL); 11362 11363 // Then resolve text direction on the parent 11364 super.resolveTextDirection(); 11365 11366 // Now, we can select the heuristic 11367 int textDir = getResolvedTextDirection(); 11368 switch (textDir) { 11369 default: 11370 case TEXT_DIRECTION_FIRST_STRONG: 11371 mTextDir = (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 11372 TextDirectionHeuristics.FIRSTSTRONG_LTR); 11373 break; 11374 case TEXT_DIRECTION_ANY_RTL: 11375 mTextDir = TextDirectionHeuristics.ANYRTL_LTR; 11376 break; 11377 case TEXT_DIRECTION_LTR: 11378 mTextDir = TextDirectionHeuristics.LTR; 11379 break; 11380 case TEXT_DIRECTION_RTL: 11381 mTextDir = TextDirectionHeuristics.RTL; 11382 break; 11383 } 11384 } 11385 11386 /** 11387 * Subclasses will need to override this method to implement their own way of resolving 11388 * drawables depending on the layout direction. 11389 * 11390 * A call to the super method will be required from the subclasses implementation. 11391 * 11392 */ 11393 protected void resolveDrawables() { 11394 // No need to resolve twice 11395 if (mResolvedDrawables) { 11396 return; 11397 } 11398 // No drawable to resolve 11399 if (mDrawables == null) { 11400 return; 11401 } 11402 // No relative drawable to resolve 11403 if (mDrawables.mDrawableStart == null && mDrawables.mDrawableEnd == null) { 11404 mResolvedDrawables = true; 11405 return; 11406 } 11407 11408 Drawables dr = mDrawables; 11409 switch(getResolvedLayoutDirection()) { 11410 case LAYOUT_DIRECTION_RTL: 11411 if (dr.mDrawableStart != null) { 11412 dr.mDrawableRight = dr.mDrawableStart; 11413 11414 dr.mDrawableSizeRight = dr.mDrawableSizeStart; 11415 dr.mDrawableHeightRight = dr.mDrawableHeightStart; 11416 } 11417 if (dr.mDrawableEnd != null) { 11418 dr.mDrawableLeft = dr.mDrawableEnd; 11419 11420 dr.mDrawableSizeLeft = dr.mDrawableSizeEnd; 11421 dr.mDrawableHeightLeft = dr.mDrawableHeightEnd; 11422 } 11423 break; 11424 11425 case LAYOUT_DIRECTION_LTR: 11426 default: 11427 if (dr.mDrawableStart != null) { 11428 dr.mDrawableLeft = dr.mDrawableStart; 11429 11430 dr.mDrawableSizeLeft = dr.mDrawableSizeStart; 11431 dr.mDrawableHeightLeft = dr.mDrawableHeightStart; 11432 } 11433 if (dr.mDrawableEnd != null) { 11434 dr.mDrawableRight = dr.mDrawableEnd; 11435 11436 dr.mDrawableSizeRight = dr.mDrawableSizeEnd; 11437 dr.mDrawableHeightRight = dr.mDrawableHeightEnd; 11438 } 11439 break; 11440 } 11441 mResolvedDrawables = true; 11442 } 11443 11444 protected void resetResolvedDrawables() { 11445 mResolvedDrawables = false; 11446 } 11447 11448 /** 11449 * @hide 11450 */ 11451 protected void viewClicked(InputMethodManager imm) { 11452 if (imm != null) { 11453 imm.viewClicked(this); 11454 } 11455 } 11456 11457 @ViewDebug.ExportedProperty(category = "text") 11458 private CharSequence mText; 11459 private CharSequence mTransformed; 11460 private BufferType mBufferType = BufferType.NORMAL; 11461 11462 private int mInputType = EditorInfo.TYPE_NULL; 11463 private CharSequence mHint; 11464 private Layout mHintLayout; 11465 11466 private KeyListener mInput; 11467 11468 private MovementMethod mMovement; 11469 private TransformationMethod mTransformation; 11470 private boolean mAllowTransformationLengthChange; 11471 private ChangeWatcher mChangeWatcher; 11472 11473 private ArrayList<TextWatcher> mListeners = null; 11474 11475 // display attributes 11476 private final TextPaint mTextPaint; 11477 private boolean mUserSetTextScaleX; 11478 private final Paint mHighlightPaint; 11479 private int mHighlightColor = 0x6633B5E5; 11480 /** 11481 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 11482 * this field being protected. Will be restored as private when lineHeight 11483 * feature request 3215097 is implemented 11484 * @hide 11485 */ 11486 protected Layout mLayout; 11487 11488 private long mShowCursor; 11489 private Blink mBlink; 11490 private boolean mCursorVisible = true; 11491 11492 // Cursor Controllers. 11493 private InsertionPointCursorController mInsertionPointCursorController; 11494 private SelectionModifierCursorController mSelectionModifierCursorController; 11495 private ActionMode mSelectionActionMode; 11496 private boolean mInsertionControllerEnabled; 11497 private boolean mSelectionControllerEnabled; 11498 private boolean mInBatchEditControllers; 11499 11500 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 11501 // select from the current cursor position. Otherwise, select from long pressed position. 11502 private boolean mDPadCenterIsDown = false; 11503 private boolean mEnterKeyIsDown = false; 11504 private boolean mContextMenuTriggeredByKey = false; 11505 11506 private boolean mSelectAllOnFocus = false; 11507 11508 private int mGravity = Gravity.TOP | Gravity.START; 11509 private boolean mHorizontallyScrolling; 11510 11511 private int mAutoLinkMask; 11512 private boolean mLinksClickable = true; 11513 11514 private float mSpacingMult = 1.0f; 11515 private float mSpacingAdd = 0.0f; 11516 private boolean mTextIsSelectable = false; 11517 11518 private static final int LINES = 1; 11519 private static final int EMS = LINES; 11520 private static final int PIXELS = 2; 11521 11522 private int mMaximum = Integer.MAX_VALUE; 11523 private int mMaxMode = LINES; 11524 private int mMinimum = 0; 11525 private int mMinMode = LINES; 11526 11527 private int mOldMaximum = mMaximum; 11528 private int mOldMaxMode = mMaxMode; 11529 11530 private int mMaxWidth = Integer.MAX_VALUE; 11531 private int mMaxWidthMode = PIXELS; 11532 private int mMinWidth = 0; 11533 private int mMinWidthMode = PIXELS; 11534 11535 private boolean mSingleLine; 11536 private int mDesiredHeightAtMeasure = -1; 11537 private boolean mIncludePad = true; 11538 11539 // tmp primitives, so we don't alloc them on each draw 11540 private Path mHighlightPath; 11541 private boolean mHighlightPathBogus = true; 11542 private static final RectF sTempRect = new RectF(); 11543 11544 // XXX should be much larger 11545 private static final int VERY_WIDE = 1024*1024; 11546 11547 private static final int BLINK = 500; 11548 11549 private static final int ANIMATED_SCROLL_GAP = 250; 11550 private long mLastScroll; 11551 private Scroller mScroller = null; 11552 11553 private BoringLayout.Metrics mBoring; 11554 private BoringLayout.Metrics mHintBoring; 11555 11556 private BoringLayout mSavedLayout, mSavedHintLayout; 11557 11558 private TextDirectionHeuristic mTextDir = null; 11559 11560 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 11561 private InputFilter[] mFilters = NO_FILTERS; 11562 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 11563 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 11564 // System wide time for last cut or copy action. 11565 private static long sLastCutOrCopyTime; 11566 // Used to highlight a word when it is corrected by the IME 11567 private CorrectionHighlighter mCorrectionHighlighter; 11568 // New state used to change background based on whether this TextView is multiline. 11569 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 11570} 11571