TextView.java revision 592ddaa34f5a6799e4bb707996a3b8308448282e
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.Resources; 28import android.content.res.TypedArray; 29import android.content.res.XmlResourceParser; 30import android.graphics.Canvas; 31import android.graphics.Color; 32import android.graphics.Paint; 33import android.graphics.Path; 34import android.graphics.Rect; 35import android.graphics.RectF; 36import android.graphics.Typeface; 37import android.graphics.drawable.Drawable; 38import android.inputmethodservice.ExtractEditText; 39import android.net.Uri; 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.ContextMenu; 105import android.view.DragEvent; 106import android.view.Gravity; 107import android.view.HapticFeedbackConstants; 108import android.view.KeyCharacterMap; 109import android.view.KeyEvent; 110import android.view.LayoutInflater; 111import android.view.Menu; 112import android.view.MenuItem; 113import android.view.MotionEvent; 114import android.view.View; 115import android.view.ViewConfiguration; 116import android.view.ViewDebug; 117import android.view.ViewGroup; 118import android.view.ViewGroup.LayoutParams; 119import android.view.ViewParent; 120import android.view.ViewRootImpl; 121import android.view.ViewTreeObserver; 122import android.view.WindowManager; 123import android.view.accessibility.AccessibilityEvent; 124import android.view.accessibility.AccessibilityManager; 125import android.view.accessibility.AccessibilityNodeInfo; 126import android.view.animation.AnimationUtils; 127import android.view.inputmethod.BaseInputConnection; 128import android.view.inputmethod.CompletionInfo; 129import android.view.inputmethod.CorrectionInfo; 130import android.view.inputmethod.EditorInfo; 131import android.view.inputmethod.ExtractedText; 132import android.view.inputmethod.ExtractedTextRequest; 133import android.view.inputmethod.InputConnection; 134import android.view.inputmethod.InputMethodManager; 135import android.widget.AdapterView.OnItemClickListener; 136import android.widget.RemoteViews.RemoteView; 137 138import com.android.internal.util.FastMath; 139import com.android.internal.widget.EditableInputConnection; 140 141import org.xmlpull.v1.XmlPullParserException; 142 143import java.io.IOException; 144import java.lang.ref.WeakReference; 145import java.text.BreakIterator; 146import java.util.ArrayList; 147import java.util.Arrays; 148import java.util.Comparator; 149import java.util.HashMap; 150 151/** 152 * Displays text to the user and optionally allows them to edit it. A TextView 153 * is a complete text editor, however the basic class is configured to not 154 * allow editing; see {@link EditText} for a subclass that configures the text 155 * view for editing. 156 * 157 * <p> 158 * <b>XML attributes</b> 159 * <p> 160 * See {@link android.R.styleable#TextView TextView Attributes}, 161 * {@link android.R.styleable#View View Attributes} 162 * 163 * @attr ref android.R.styleable#TextView_text 164 * @attr ref android.R.styleable#TextView_bufferType 165 * @attr ref android.R.styleable#TextView_hint 166 * @attr ref android.R.styleable#TextView_textColor 167 * @attr ref android.R.styleable#TextView_textColorHighlight 168 * @attr ref android.R.styleable#TextView_textColorHint 169 * @attr ref android.R.styleable#TextView_textAppearance 170 * @attr ref android.R.styleable#TextView_textColorLink 171 * @attr ref android.R.styleable#TextView_textSize 172 * @attr ref android.R.styleable#TextView_textScaleX 173 * @attr ref android.R.styleable#TextView_typeface 174 * @attr ref android.R.styleable#TextView_textStyle 175 * @attr ref android.R.styleable#TextView_cursorVisible 176 * @attr ref android.R.styleable#TextView_maxLines 177 * @attr ref android.R.styleable#TextView_maxHeight 178 * @attr ref android.R.styleable#TextView_lines 179 * @attr ref android.R.styleable#TextView_height 180 * @attr ref android.R.styleable#TextView_minLines 181 * @attr ref android.R.styleable#TextView_minHeight 182 * @attr ref android.R.styleable#TextView_maxEms 183 * @attr ref android.R.styleable#TextView_maxWidth 184 * @attr ref android.R.styleable#TextView_ems 185 * @attr ref android.R.styleable#TextView_width 186 * @attr ref android.R.styleable#TextView_minEms 187 * @attr ref android.R.styleable#TextView_minWidth 188 * @attr ref android.R.styleable#TextView_gravity 189 * @attr ref android.R.styleable#TextView_scrollHorizontally 190 * @attr ref android.R.styleable#TextView_password 191 * @attr ref android.R.styleable#TextView_singleLine 192 * @attr ref android.R.styleable#TextView_selectAllOnFocus 193 * @attr ref android.R.styleable#TextView_includeFontPadding 194 * @attr ref android.R.styleable#TextView_maxLength 195 * @attr ref android.R.styleable#TextView_shadowColor 196 * @attr ref android.R.styleable#TextView_shadowDx 197 * @attr ref android.R.styleable#TextView_shadowDy 198 * @attr ref android.R.styleable#TextView_shadowRadius 199 * @attr ref android.R.styleable#TextView_autoLink 200 * @attr ref android.R.styleable#TextView_linksClickable 201 * @attr ref android.R.styleable#TextView_numeric 202 * @attr ref android.R.styleable#TextView_digits 203 * @attr ref android.R.styleable#TextView_phoneNumber 204 * @attr ref android.R.styleable#TextView_inputMethod 205 * @attr ref android.R.styleable#TextView_capitalize 206 * @attr ref android.R.styleable#TextView_autoText 207 * @attr ref android.R.styleable#TextView_editable 208 * @attr ref android.R.styleable#TextView_freezesText 209 * @attr ref android.R.styleable#TextView_ellipsize 210 * @attr ref android.R.styleable#TextView_drawableTop 211 * @attr ref android.R.styleable#TextView_drawableBottom 212 * @attr ref android.R.styleable#TextView_drawableRight 213 * @attr ref android.R.styleable#TextView_drawableLeft 214 * @attr ref android.R.styleable#TextView_drawablePadding 215 * @attr ref android.R.styleable#TextView_lineSpacingExtra 216 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 217 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 218 * @attr ref android.R.styleable#TextView_inputType 219 * @attr ref android.R.styleable#TextView_imeOptions 220 * @attr ref android.R.styleable#TextView_privateImeOptions 221 * @attr ref android.R.styleable#TextView_imeActionLabel 222 * @attr ref android.R.styleable#TextView_imeActionId 223 * @attr ref android.R.styleable#TextView_editorExtras 224 */ 225@RemoteView 226public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 227 static final String LOG_TAG = "TextView"; 228 static final boolean DEBUG_EXTRACT = false; 229 230 private static final int PRIORITY = 100; 231 private int mCurrentAlpha = 255; 232 233 final int[] mTempCoords = new int[2]; 234 Rect mTempRect; 235 236 private ColorStateList mTextColor; 237 private int mCurTextColor; 238 private ColorStateList mHintTextColor; 239 private ColorStateList mLinkTextColor; 240 private int mCurHintTextColor; 241 private boolean mFreezesText; 242 private boolean mFrozenWithFocus; 243 private boolean mTemporaryDetach; 244 private boolean mDispatchTemporaryDetach; 245 246 private boolean mDiscardNextActionUp = false; 247 private boolean mIgnoreActionUpEvent = false; 248 249 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 250 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 251 252 private float mShadowRadius, mShadowDx, mShadowDy; 253 254 private static final int PREDRAW_NOT_REGISTERED = 0; 255 private static final int PREDRAW_PENDING = 1; 256 private static final int PREDRAW_DONE = 2; 257 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 258 259 private TextUtils.TruncateAt mEllipsize = null; 260 261 // Enum for the "typeface" XML parameter. 262 // TODO: How can we get this from the XML instead of hardcoding it here? 263 private static final int SANS = 1; 264 private static final int SERIF = 2; 265 private static final int MONOSPACE = 3; 266 267 // Bitfield for the "numeric" XML parameter. 268 // TODO: How can we get this from the XML instead of hardcoding it here? 269 private static final int SIGNED = 2; 270 private static final int DECIMAL = 4; 271 272 class Drawables { 273 final Rect mCompoundRect = new Rect(); 274 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight, 275 mDrawableStart, mDrawableEnd; 276 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 277 mDrawableSizeStart, mDrawableSizeEnd; 278 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 279 mDrawableHeightStart, mDrawableHeightEnd; 280 int mDrawablePadding; 281 } 282 private Drawables mDrawables; 283 284 private CharSequence mError; 285 private boolean mErrorWasChanged; 286 private ErrorPopup mPopup; 287 /** 288 * This flag is set if the TextView tries to display an error before it 289 * is attached to the window (so its position is still unknown). 290 * It causes the error to be shown later, when onAttachedToWindow() 291 * is called. 292 */ 293 private boolean mShowErrorAfterAttach; 294 295 private CharWrapper mCharWrapper = null; 296 297 private boolean mSelectionMoved = false; 298 private boolean mTouchFocusSelected = false; 299 300 private Marquee mMarquee; 301 private boolean mRestartMarquee; 302 303 private int mMarqueeRepeatLimit = 3; 304 305 class InputContentType { 306 int imeOptions = EditorInfo.IME_NULL; 307 String privateImeOptions; 308 CharSequence imeActionLabel; 309 int imeActionId; 310 Bundle extras; 311 OnEditorActionListener onEditorActionListener; 312 boolean enterDown; 313 } 314 InputContentType mInputContentType; 315 316 class InputMethodState { 317 Rect mCursorRectInWindow = new Rect(); 318 RectF mTmpRectF = new RectF(); 319 float[] mTmpOffset = new float[2]; 320 ExtractedTextRequest mExtracting; 321 final ExtractedText mTmpExtracted = new ExtractedText(); 322 int mBatchEditNesting; 323 boolean mCursorChanged; 324 boolean mSelectionModeChanged; 325 boolean mContentChanged; 326 int mChangedStart, mChangedEnd, mChangedDelta; 327 } 328 InputMethodState mInputMethodState; 329 330 private int mTextSelectHandleLeftRes; 331 private int mTextSelectHandleRightRes; 332 private int mTextSelectHandleRes; 333 334 private int mTextEditSuggestionItemLayout; 335 private SuggestionsPopupWindow mSuggestionsPopupWindow; 336 private SuggestionRangeSpan mSuggestionRangeSpan; 337 338 private int mCursorDrawableRes; 339 private final Drawable[] mCursorDrawable = new Drawable[2]; 340 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 341 342 private Drawable mSelectHandleLeft; 343 private Drawable mSelectHandleRight; 344 private Drawable mSelectHandleCenter; 345 346 // Global listener that detects changes in the global position of the TextView 347 private PositionListener mPositionListener; 348 349 private float mLastDownPositionX, mLastDownPositionY; 350 private Callback mCustomSelectionActionModeCallback; 351 352 private final int mSquaredTouchSlopDistance; 353 // Set when this TextView gained focus with some text selected. Will start selection mode. 354 private boolean mCreatedWithASelection = false; 355 356 private WordIterator mWordIterator; 357 358 private SpellChecker mSpellChecker; 359 360 // The alignment to pass to Layout, or null if not resolved. 361 private Layout.Alignment mLayoutAlignment; 362 363 // The default value for mTextAlign. 364 private TextAlign mTextAlign = TextAlign.INHERIT; 365 366 private static enum TextAlign { 367 INHERIT, GRAVITY, TEXT_START, TEXT_END, CENTER, VIEW_START, VIEW_END; 368 } 369 370 private boolean mResolvedDrawables = false; 371 372 /** 373 * On some devices the fading edges add a performance penalty if used 374 * extensively in the same layout. This mode indicates how the marquee 375 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 376 */ 377 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 378 379 /** 380 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 381 * the layout that should be used when the mode switches. 382 */ 383 private Layout mSavedMarqueeModeLayout; 384 385 /** 386 * Draw marquee text with fading edges as usual 387 */ 388 private static final int MARQUEE_FADE_NORMAL = 0; 389 390 /** 391 * Draw marquee text as ellipsize end while inactive instead of with the fade. 392 * (Useful for devices where the fade can be expensive if overdone) 393 */ 394 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 395 396 /** 397 * Draw marquee text with fading edges because it is currently active/animating. 398 */ 399 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 400 401 /* 402 * Kick-start the font cache for the zygote process (to pay the cost of 403 * initializing freetype for our default font only once). 404 */ 405 static { 406 Paint p = new Paint(); 407 p.setAntiAlias(true); 408 // We don't care about the result, just the side-effect of measuring. 409 p.measureText("H"); 410 } 411 412 /** 413 * Interface definition for a callback to be invoked when an action is 414 * performed on the editor. 415 */ 416 public interface OnEditorActionListener { 417 /** 418 * Called when an action is being performed. 419 * 420 * @param v The view that was clicked. 421 * @param actionId Identifier of the action. This will be either the 422 * identifier you supplied, or {@link EditorInfo#IME_NULL 423 * EditorInfo.IME_NULL} if being called due to the enter key 424 * being pressed. 425 * @param event If triggered by an enter key, this is the event; 426 * otherwise, this is null. 427 * @return Return true if you have consumed the action, else false. 428 */ 429 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 430 } 431 432 public TextView(Context context) { 433 this(context, null); 434 } 435 436 public TextView(Context context, 437 AttributeSet attrs) { 438 this(context, attrs, com.android.internal.R.attr.textViewStyle); 439 } 440 441 @SuppressWarnings("deprecation") 442 public TextView(Context context, 443 AttributeSet attrs, 444 int defStyle) { 445 super(context, attrs, defStyle); 446 mText = ""; 447 448 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 449 mTextPaint.density = getResources().getDisplayMetrics().density; 450 mTextPaint.setCompatibilityScaling( 451 getResources().getCompatibilityInfo().applicationScale); 452 453 // If we get the paint from the skin, we should set it to left, since 454 // the layout always wants it to be left. 455 // mTextPaint.setTextAlign(Paint.Align.LEFT); 456 457 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 458 mHighlightPaint.setCompatibilityScaling( 459 getResources().getCompatibilityInfo().applicationScale); 460 461 mMovement = getDefaultMovementMethod(); 462 mTransformation = null; 463 464 int textColorHighlight = 0; 465 ColorStateList textColor = null; 466 ColorStateList textColorHint = null; 467 ColorStateList textColorLink = null; 468 int textSize = 15; 469 int typefaceIndex = -1; 470 int styleIndex = -1; 471 boolean allCaps = false; 472 473 final Resources.Theme theme = context.getTheme(); 474 475 /* 476 * Look the appearance up without checking first if it exists because 477 * almost every TextView has one and it greatly simplifies the logic 478 * to be able to parse the appearance first and then let specific tags 479 * for this View override it. 480 */ 481 TypedArray a = theme.obtainStyledAttributes( 482 attrs, com.android.internal.R.styleable.TextViewAppearance, defStyle, 0); 483 TypedArray appearance = null; 484 int ap = a.getResourceId( 485 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 486 a.recycle(); 487 if (ap != -1) { 488 appearance = theme.obtainStyledAttributes( 489 ap, com.android.internal.R.styleable.TextAppearance); 490 } 491 if (appearance != null) { 492 int n = appearance.getIndexCount(); 493 for (int i = 0; i < n; i++) { 494 int attr = appearance.getIndex(i); 495 496 switch (attr) { 497 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 498 textColorHighlight = appearance.getColor(attr, textColorHighlight); 499 break; 500 501 case com.android.internal.R.styleable.TextAppearance_textColor: 502 textColor = appearance.getColorStateList(attr); 503 break; 504 505 case com.android.internal.R.styleable.TextAppearance_textColorHint: 506 textColorHint = appearance.getColorStateList(attr); 507 break; 508 509 case com.android.internal.R.styleable.TextAppearance_textColorLink: 510 textColorLink = appearance.getColorStateList(attr); 511 break; 512 513 case com.android.internal.R.styleable.TextAppearance_textSize: 514 textSize = appearance.getDimensionPixelSize(attr, textSize); 515 break; 516 517 case com.android.internal.R.styleable.TextAppearance_typeface: 518 typefaceIndex = appearance.getInt(attr, -1); 519 break; 520 521 case com.android.internal.R.styleable.TextAppearance_textStyle: 522 styleIndex = appearance.getInt(attr, -1); 523 break; 524 525 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 526 allCaps = appearance.getBoolean(attr, false); 527 break; 528 } 529 } 530 531 appearance.recycle(); 532 } 533 534 boolean editable = getDefaultEditable(); 535 CharSequence inputMethod = null; 536 int numeric = 0; 537 CharSequence digits = null; 538 boolean phone = false; 539 boolean autotext = false; 540 int autocap = -1; 541 int buffertype = 0; 542 boolean selectallonfocus = false; 543 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 544 drawableBottom = null, drawableStart = null, drawableEnd = null; 545 int drawablePadding = 0; 546 int ellipsize = -1; 547 boolean singleLine = false; 548 int maxlength = -1; 549 CharSequence text = ""; 550 CharSequence hint = null; 551 int shadowcolor = 0; 552 float dx = 0, dy = 0, r = 0; 553 boolean password = false; 554 int inputType = EditorInfo.TYPE_NULL; 555 556 a = theme.obtainStyledAttributes( 557 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 558 559 int n = a.getIndexCount(); 560 for (int i = 0; i < n; i++) { 561 int attr = a.getIndex(i); 562 563 switch (attr) { 564 case com.android.internal.R.styleable.TextView_editable: 565 editable = a.getBoolean(attr, editable); 566 break; 567 568 case com.android.internal.R.styleable.TextView_inputMethod: 569 inputMethod = a.getText(attr); 570 break; 571 572 case com.android.internal.R.styleable.TextView_numeric: 573 numeric = a.getInt(attr, numeric); 574 break; 575 576 case com.android.internal.R.styleable.TextView_digits: 577 digits = a.getText(attr); 578 break; 579 580 case com.android.internal.R.styleable.TextView_phoneNumber: 581 phone = a.getBoolean(attr, phone); 582 break; 583 584 case com.android.internal.R.styleable.TextView_autoText: 585 autotext = a.getBoolean(attr, autotext); 586 break; 587 588 case com.android.internal.R.styleable.TextView_capitalize: 589 autocap = a.getInt(attr, autocap); 590 break; 591 592 case com.android.internal.R.styleable.TextView_bufferType: 593 buffertype = a.getInt(attr, buffertype); 594 break; 595 596 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 597 selectallonfocus = a.getBoolean(attr, selectallonfocus); 598 break; 599 600 case com.android.internal.R.styleable.TextView_autoLink: 601 mAutoLinkMask = a.getInt(attr, 0); 602 break; 603 604 case com.android.internal.R.styleable.TextView_linksClickable: 605 mLinksClickable = a.getBoolean(attr, true); 606 break; 607 608 case com.android.internal.R.styleable.TextView_drawableLeft: 609 drawableLeft = a.getDrawable(attr); 610 break; 611 612 case com.android.internal.R.styleable.TextView_drawableTop: 613 drawableTop = a.getDrawable(attr); 614 break; 615 616 case com.android.internal.R.styleable.TextView_drawableRight: 617 drawableRight = a.getDrawable(attr); 618 break; 619 620 case com.android.internal.R.styleable.TextView_drawableBottom: 621 drawableBottom = a.getDrawable(attr); 622 break; 623 624 case com.android.internal.R.styleable.TextView_drawableStart: 625 drawableStart = a.getDrawable(attr); 626 break; 627 628 case com.android.internal.R.styleable.TextView_drawableEnd: 629 drawableEnd = a.getDrawable(attr); 630 break; 631 632 case com.android.internal.R.styleable.TextView_drawablePadding: 633 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 634 break; 635 636 case com.android.internal.R.styleable.TextView_maxLines: 637 setMaxLines(a.getInt(attr, -1)); 638 break; 639 640 case com.android.internal.R.styleable.TextView_maxHeight: 641 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 642 break; 643 644 case com.android.internal.R.styleable.TextView_lines: 645 setLines(a.getInt(attr, -1)); 646 break; 647 648 case com.android.internal.R.styleable.TextView_height: 649 setHeight(a.getDimensionPixelSize(attr, -1)); 650 break; 651 652 case com.android.internal.R.styleable.TextView_minLines: 653 setMinLines(a.getInt(attr, -1)); 654 break; 655 656 case com.android.internal.R.styleable.TextView_minHeight: 657 setMinHeight(a.getDimensionPixelSize(attr, -1)); 658 break; 659 660 case com.android.internal.R.styleable.TextView_maxEms: 661 setMaxEms(a.getInt(attr, -1)); 662 break; 663 664 case com.android.internal.R.styleable.TextView_maxWidth: 665 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 666 break; 667 668 case com.android.internal.R.styleable.TextView_ems: 669 setEms(a.getInt(attr, -1)); 670 break; 671 672 case com.android.internal.R.styleable.TextView_width: 673 setWidth(a.getDimensionPixelSize(attr, -1)); 674 break; 675 676 case com.android.internal.R.styleable.TextView_minEms: 677 setMinEms(a.getInt(attr, -1)); 678 break; 679 680 case com.android.internal.R.styleable.TextView_minWidth: 681 setMinWidth(a.getDimensionPixelSize(attr, -1)); 682 break; 683 684 case com.android.internal.R.styleable.TextView_gravity: 685 setGravity(a.getInt(attr, -1)); 686 break; 687 688 case com.android.internal.R.styleable.TextView_hint: 689 hint = a.getText(attr); 690 break; 691 692 case com.android.internal.R.styleable.TextView_text: 693 text = a.getText(attr); 694 break; 695 696 case com.android.internal.R.styleable.TextView_scrollHorizontally: 697 if (a.getBoolean(attr, false)) { 698 setHorizontallyScrolling(true); 699 } 700 break; 701 702 case com.android.internal.R.styleable.TextView_singleLine: 703 singleLine = a.getBoolean(attr, singleLine); 704 break; 705 706 case com.android.internal.R.styleable.TextView_ellipsize: 707 ellipsize = a.getInt(attr, ellipsize); 708 break; 709 710 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 711 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 712 break; 713 714 case com.android.internal.R.styleable.TextView_includeFontPadding: 715 if (!a.getBoolean(attr, true)) { 716 setIncludeFontPadding(false); 717 } 718 break; 719 720 case com.android.internal.R.styleable.TextView_cursorVisible: 721 if (!a.getBoolean(attr, true)) { 722 setCursorVisible(false); 723 } 724 break; 725 726 case com.android.internal.R.styleable.TextView_maxLength: 727 maxlength = a.getInt(attr, -1); 728 break; 729 730 case com.android.internal.R.styleable.TextView_textScaleX: 731 setTextScaleX(a.getFloat(attr, 1.0f)); 732 break; 733 734 case com.android.internal.R.styleable.TextView_freezesText: 735 mFreezesText = a.getBoolean(attr, false); 736 break; 737 738 case com.android.internal.R.styleable.TextView_shadowColor: 739 shadowcolor = a.getInt(attr, 0); 740 break; 741 742 case com.android.internal.R.styleable.TextView_shadowDx: 743 dx = a.getFloat(attr, 0); 744 break; 745 746 case com.android.internal.R.styleable.TextView_shadowDy: 747 dy = a.getFloat(attr, 0); 748 break; 749 750 case com.android.internal.R.styleable.TextView_shadowRadius: 751 r = a.getFloat(attr, 0); 752 break; 753 754 case com.android.internal.R.styleable.TextView_enabled: 755 setEnabled(a.getBoolean(attr, isEnabled())); 756 break; 757 758 case com.android.internal.R.styleable.TextView_textColorHighlight: 759 textColorHighlight = a.getColor(attr, textColorHighlight); 760 break; 761 762 case com.android.internal.R.styleable.TextView_textColor: 763 textColor = a.getColorStateList(attr); 764 break; 765 766 case com.android.internal.R.styleable.TextView_textColorHint: 767 textColorHint = a.getColorStateList(attr); 768 break; 769 770 case com.android.internal.R.styleable.TextView_textColorLink: 771 textColorLink = a.getColorStateList(attr); 772 break; 773 774 case com.android.internal.R.styleable.TextView_textSize: 775 textSize = a.getDimensionPixelSize(attr, textSize); 776 break; 777 778 case com.android.internal.R.styleable.TextView_typeface: 779 typefaceIndex = a.getInt(attr, typefaceIndex); 780 break; 781 782 case com.android.internal.R.styleable.TextView_textStyle: 783 styleIndex = a.getInt(attr, styleIndex); 784 break; 785 786 case com.android.internal.R.styleable.TextView_password: 787 password = a.getBoolean(attr, password); 788 break; 789 790 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 791 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 792 break; 793 794 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 795 mSpacingMult = a.getFloat(attr, mSpacingMult); 796 break; 797 798 case com.android.internal.R.styleable.TextView_inputType: 799 inputType = a.getInt(attr, mInputType); 800 break; 801 802 case com.android.internal.R.styleable.TextView_imeOptions: 803 if (mInputContentType == null) { 804 mInputContentType = new InputContentType(); 805 } 806 mInputContentType.imeOptions = a.getInt(attr, 807 mInputContentType.imeOptions); 808 break; 809 810 case com.android.internal.R.styleable.TextView_imeActionLabel: 811 if (mInputContentType == null) { 812 mInputContentType = new InputContentType(); 813 } 814 mInputContentType.imeActionLabel = a.getText(attr); 815 break; 816 817 case com.android.internal.R.styleable.TextView_imeActionId: 818 if (mInputContentType == null) { 819 mInputContentType = new InputContentType(); 820 } 821 mInputContentType.imeActionId = a.getInt(attr, 822 mInputContentType.imeActionId); 823 break; 824 825 case com.android.internal.R.styleable.TextView_privateImeOptions: 826 setPrivateImeOptions(a.getString(attr)); 827 break; 828 829 case com.android.internal.R.styleable.TextView_editorExtras: 830 try { 831 setInputExtras(a.getResourceId(attr, 0)); 832 } catch (XmlPullParserException e) { 833 Log.w(LOG_TAG, "Failure reading input extras", e); 834 } catch (IOException e) { 835 Log.w(LOG_TAG, "Failure reading input extras", e); 836 } 837 break; 838 839 case com.android.internal.R.styleable.TextView_textCursorDrawable: 840 mCursorDrawableRes = a.getResourceId(attr, 0); 841 break; 842 843 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 844 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 845 break; 846 847 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 848 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 849 break; 850 851 case com.android.internal.R.styleable.TextView_textSelectHandle: 852 mTextSelectHandleRes = a.getResourceId(attr, 0); 853 break; 854 855 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 856 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 857 break; 858 859 case com.android.internal.R.styleable.TextView_textIsSelectable: 860 mTextIsSelectable = a.getBoolean(attr, false); 861 break; 862 863 case com.android.internal.R.styleable.TextView_textAllCaps: 864 allCaps = a.getBoolean(attr, false); 865 break; 866 } 867 } 868 a.recycle(); 869 870 BufferType bufferType = BufferType.EDITABLE; 871 872 final int variation = 873 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 874 final boolean passwordInputType = variation 875 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 876 final boolean webPasswordInputType = variation 877 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 878 final boolean numberPasswordInputType = variation 879 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 880 881 if (inputMethod != null) { 882 Class<?> c; 883 884 try { 885 c = Class.forName(inputMethod.toString()); 886 } catch (ClassNotFoundException ex) { 887 throw new RuntimeException(ex); 888 } 889 890 try { 891 mInput = (KeyListener) c.newInstance(); 892 } catch (InstantiationException ex) { 893 throw new RuntimeException(ex); 894 } catch (IllegalAccessException ex) { 895 throw new RuntimeException(ex); 896 } 897 try { 898 mInputType = inputType != EditorInfo.TYPE_NULL 899 ? inputType 900 : mInput.getInputType(); 901 } catch (IncompatibleClassChangeError e) { 902 mInputType = EditorInfo.TYPE_CLASS_TEXT; 903 } 904 } else if (digits != null) { 905 mInput = DigitsKeyListener.getInstance(digits.toString()); 906 // If no input type was specified, we will default to generic 907 // text, since we can't tell the IME about the set of digits 908 // that was selected. 909 mInputType = inputType != EditorInfo.TYPE_NULL 910 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 911 } else if (inputType != EditorInfo.TYPE_NULL) { 912 setInputType(inputType, true); 913 // If set, the input type overrides what was set using the deprecated singleLine flag. 914 singleLine = !isMultilineInputType(inputType); 915 } else if (phone) { 916 mInput = DialerKeyListener.getInstance(); 917 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 918 } else if (numeric != 0) { 919 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 920 (numeric & DECIMAL) != 0); 921 inputType = EditorInfo.TYPE_CLASS_NUMBER; 922 if ((numeric & SIGNED) != 0) { 923 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 924 } 925 if ((numeric & DECIMAL) != 0) { 926 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 927 } 928 mInputType = inputType; 929 } else if (autotext || autocap != -1) { 930 TextKeyListener.Capitalize cap; 931 932 inputType = EditorInfo.TYPE_CLASS_TEXT; 933 934 switch (autocap) { 935 case 1: 936 cap = TextKeyListener.Capitalize.SENTENCES; 937 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 938 break; 939 940 case 2: 941 cap = TextKeyListener.Capitalize.WORDS; 942 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 943 break; 944 945 case 3: 946 cap = TextKeyListener.Capitalize.CHARACTERS; 947 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 948 break; 949 950 default: 951 cap = TextKeyListener.Capitalize.NONE; 952 break; 953 } 954 955 mInput = TextKeyListener.getInstance(autotext, cap); 956 mInputType = inputType; 957 } else if (mTextIsSelectable) { 958 // Prevent text changes from keyboard. 959 mInputType = EditorInfo.TYPE_NULL; 960 mInput = null; 961 bufferType = BufferType.SPANNABLE; 962 // Required to request focus while in touch mode. 963 setFocusableInTouchMode(true); 964 // So that selection can be changed using arrow keys and touch is handled. 965 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 966 } else if (editable) { 967 mInput = TextKeyListener.getInstance(); 968 mInputType = EditorInfo.TYPE_CLASS_TEXT; 969 } else { 970 mInput = null; 971 972 switch (buffertype) { 973 case 0: 974 bufferType = BufferType.NORMAL; 975 break; 976 case 1: 977 bufferType = BufferType.SPANNABLE; 978 break; 979 case 2: 980 bufferType = BufferType.EDITABLE; 981 break; 982 } 983 } 984 985 // mInputType has been set from inputType, possibly modified by mInputMethod. 986 // Specialize mInputType to [web]password if we have a text class and the original input 987 // type was a password. 988 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 989 if (password || passwordInputType) { 990 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 991 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 992 } 993 if (webPasswordInputType) { 994 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 995 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 996 } 997 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 998 if (numberPasswordInputType) { 999 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1000 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 1001 } 1002 } 1003 1004 if (selectallonfocus) { 1005 mSelectAllOnFocus = true; 1006 1007 if (bufferType == BufferType.NORMAL) 1008 bufferType = BufferType.SPANNABLE; 1009 } 1010 1011 setCompoundDrawablesWithIntrinsicBounds( 1012 drawableLeft, drawableTop, drawableRight, drawableBottom); 1013 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1014 setCompoundDrawablePadding(drawablePadding); 1015 1016 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1017 // of lines of height are unchanged for multi-line TextViews. 1018 setInputTypeSingleLine(singleLine); 1019 applySingleLine(singleLine, singleLine, singleLine); 1020 1021 if (singleLine && mInput == null && ellipsize < 0) { 1022 ellipsize = 3; // END 1023 } 1024 1025 switch (ellipsize) { 1026 case 1: 1027 setEllipsize(TextUtils.TruncateAt.START); 1028 break; 1029 case 2: 1030 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1031 break; 1032 case 3: 1033 setEllipsize(TextUtils.TruncateAt.END); 1034 break; 1035 case 4: 1036 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1037 setHorizontalFadingEdgeEnabled(true); 1038 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1039 } else { 1040 setHorizontalFadingEdgeEnabled(false); 1041 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1042 } 1043 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1044 break; 1045 } 1046 1047 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 1048 setHintTextColor(textColorHint); 1049 setLinkTextColor(textColorLink); 1050 if (textColorHighlight != 0) { 1051 setHighlightColor(textColorHighlight); 1052 } 1053 setRawTextSize(textSize); 1054 1055 if (allCaps) { 1056 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 1057 } 1058 1059 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 1060 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1061 typefaceIndex = MONOSPACE; 1062 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1063 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1064 typefaceIndex = MONOSPACE; 1065 } 1066 1067 setTypefaceByIndex(typefaceIndex, styleIndex); 1068 1069 if (shadowcolor != 0) { 1070 setShadowLayer(r, dx, dy, shadowcolor); 1071 } 1072 1073 if (maxlength >= 0) { 1074 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1075 } else { 1076 setFilters(NO_FILTERS); 1077 } 1078 1079 setText(text, bufferType); 1080 if (hint != null) setHint(hint); 1081 1082 /* 1083 * Views are not normally focusable unless specified to be. 1084 * However, TextViews that have input or movement methods *are* 1085 * focusable by default. 1086 */ 1087 a = context.obtainStyledAttributes(attrs, 1088 com.android.internal.R.styleable.View, 1089 defStyle, 0); 1090 1091 boolean focusable = mMovement != null || mInput != null; 1092 boolean clickable = focusable; 1093 boolean longClickable = focusable; 1094 1095 n = a.getIndexCount(); 1096 for (int i = 0; i < n; i++) { 1097 int attr = a.getIndex(i); 1098 1099 switch (attr) { 1100 case com.android.internal.R.styleable.View_focusable: 1101 focusable = a.getBoolean(attr, focusable); 1102 break; 1103 1104 case com.android.internal.R.styleable.View_clickable: 1105 clickable = a.getBoolean(attr, clickable); 1106 break; 1107 1108 case com.android.internal.R.styleable.View_longClickable: 1109 longClickable = a.getBoolean(attr, longClickable); 1110 break; 1111 } 1112 } 1113 a.recycle(); 1114 1115 setFocusable(focusable); 1116 setClickable(clickable); 1117 setLongClickable(longClickable); 1118 1119 prepareCursorControllers(); 1120 1121 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1122 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1123 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1124 } 1125 1126 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1127 Typeface tf = null; 1128 switch (typefaceIndex) { 1129 case SANS: 1130 tf = Typeface.SANS_SERIF; 1131 break; 1132 1133 case SERIF: 1134 tf = Typeface.SERIF; 1135 break; 1136 1137 case MONOSPACE: 1138 tf = Typeface.MONOSPACE; 1139 break; 1140 } 1141 1142 setTypeface(tf, styleIndex); 1143 } 1144 1145 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1146 boolean hasRelativeDrawables = (start != null) || (end != null); 1147 if (hasRelativeDrawables) { 1148 Drawables dr = mDrawables; 1149 if (dr == null) { 1150 mDrawables = dr = new Drawables(); 1151 } 1152 final Rect compoundRect = dr.mCompoundRect; 1153 int[] state = getDrawableState(); 1154 if (start != null) { 1155 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1156 start.setState(state); 1157 start.copyBounds(compoundRect); 1158 start.setCallback(this); 1159 1160 dr.mDrawableStart = start; 1161 dr.mDrawableSizeStart = compoundRect.width(); 1162 dr.mDrawableHeightStart = compoundRect.height(); 1163 } else { 1164 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1165 } 1166 if (end != null) { 1167 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1168 end.setState(state); 1169 end.copyBounds(compoundRect); 1170 end.setCallback(this); 1171 1172 dr.mDrawableEnd = end; 1173 dr.mDrawableSizeEnd = compoundRect.width(); 1174 dr.mDrawableHeightEnd = compoundRect.height(); 1175 } else { 1176 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1177 } 1178 } 1179 } 1180 1181 @Override 1182 public void setEnabled(boolean enabled) { 1183 if (enabled == isEnabled()) { 1184 return; 1185 } 1186 1187 if (!enabled) { 1188 // Hide the soft input if the currently active TextView is disabled 1189 InputMethodManager imm = InputMethodManager.peekInstance(); 1190 if (imm != null && imm.isActive(this)) { 1191 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1192 } 1193 } 1194 super.setEnabled(enabled); 1195 prepareCursorControllers(); 1196 if (enabled) { 1197 // Make sure IME is updated with current editor info. 1198 InputMethodManager imm = InputMethodManager.peekInstance(); 1199 if (imm != null) imm.restartInput(this); 1200 } 1201 } 1202 1203 /** 1204 * Sets the typeface and style in which the text should be displayed, 1205 * and turns on the fake bold and italic bits in the Paint if the 1206 * Typeface that you provided does not have all the bits in the 1207 * style that you specified. 1208 * 1209 * @attr ref android.R.styleable#TextView_typeface 1210 * @attr ref android.R.styleable#TextView_textStyle 1211 */ 1212 public void setTypeface(Typeface tf, int style) { 1213 if (style > 0) { 1214 if (tf == null) { 1215 tf = Typeface.defaultFromStyle(style); 1216 } else { 1217 tf = Typeface.create(tf, style); 1218 } 1219 1220 setTypeface(tf); 1221 // now compute what (if any) algorithmic styling is needed 1222 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1223 int need = style & ~typefaceStyle; 1224 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1225 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1226 } else { 1227 mTextPaint.setFakeBoldText(false); 1228 mTextPaint.setTextSkewX(0); 1229 setTypeface(tf); 1230 } 1231 } 1232 1233 /** 1234 * Subclasses override this to specify that they have a KeyListener 1235 * by default even if not specifically called for in the XML options. 1236 */ 1237 protected boolean getDefaultEditable() { 1238 return false; 1239 } 1240 1241 /** 1242 * Subclasses override this to specify a default movement method. 1243 */ 1244 protected MovementMethod getDefaultMovementMethod() { 1245 return null; 1246 } 1247 1248 /** 1249 * Return the text the TextView is displaying. If setText() was called with 1250 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1251 * the return value from this method to Spannable or Editable, respectively. 1252 * 1253 * Note: The content of the return value should not be modified. If you want 1254 * a modifiable one, you should make your own copy first. 1255 */ 1256 @ViewDebug.CapturedViewProperty 1257 public CharSequence getText() { 1258 return mText; 1259 } 1260 1261 /** 1262 * Returns the length, in characters, of the text managed by this TextView 1263 */ 1264 public int length() { 1265 return mText.length(); 1266 } 1267 1268 /** 1269 * Return the text the TextView is displaying as an Editable object. If 1270 * the text is not editable, null is returned. 1271 * 1272 * @see #getText 1273 */ 1274 public Editable getEditableText() { 1275 return (mText instanceof Editable) ? (Editable)mText : null; 1276 } 1277 1278 /** 1279 * @return the height of one standard line in pixels. Note that markup 1280 * within the text can cause individual lines to be taller or shorter 1281 * than this height, and the layout may contain additional first- 1282 * or last-line padding. 1283 */ 1284 public int getLineHeight() { 1285 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1286 } 1287 1288 /** 1289 * @return the Layout that is currently being used to display the text. 1290 * This can be null if the text or width has recently changes. 1291 */ 1292 public final Layout getLayout() { 1293 return mLayout; 1294 } 1295 1296 /** 1297 * @return the current key listener for this TextView. 1298 * This will frequently be null for non-EditText TextViews. 1299 */ 1300 public final KeyListener getKeyListener() { 1301 return mInput; 1302 } 1303 1304 /** 1305 * Sets the key listener to be used with this TextView. This can be null 1306 * to disallow user input. Note that this method has significant and 1307 * subtle interactions with soft keyboards and other input method: 1308 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1309 * for important details. Calling this method will replace the current 1310 * content type of the text view with the content type returned by the 1311 * key listener. 1312 * <p> 1313 * Be warned that if you want a TextView with a key listener or movement 1314 * method not to be focusable, or if you want a TextView without a 1315 * key listener or movement method to be focusable, you must call 1316 * {@link #setFocusable} again after calling this to get the focusability 1317 * back the way you want it. 1318 * 1319 * @attr ref android.R.styleable#TextView_numeric 1320 * @attr ref android.R.styleable#TextView_digits 1321 * @attr ref android.R.styleable#TextView_phoneNumber 1322 * @attr ref android.R.styleable#TextView_inputMethod 1323 * @attr ref android.R.styleable#TextView_capitalize 1324 * @attr ref android.R.styleable#TextView_autoText 1325 */ 1326 public void setKeyListener(KeyListener input) { 1327 setKeyListenerOnly(input); 1328 fixFocusableAndClickableSettings(); 1329 1330 if (input != null) { 1331 try { 1332 mInputType = mInput.getInputType(); 1333 } catch (IncompatibleClassChangeError e) { 1334 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1335 } 1336 // Change inputType, without affecting transformation. 1337 // No need to applySingleLine since mSingleLine is unchanged. 1338 setInputTypeSingleLine(mSingleLine); 1339 } else { 1340 mInputType = EditorInfo.TYPE_NULL; 1341 } 1342 1343 InputMethodManager imm = InputMethodManager.peekInstance(); 1344 if (imm != null) imm.restartInput(this); 1345 } 1346 1347 private void setKeyListenerOnly(KeyListener input) { 1348 mInput = input; 1349 if (mInput != null && !(mText instanceof Editable)) 1350 setText(mText); 1351 1352 setFilters((Editable) mText, mFilters); 1353 } 1354 1355 /** 1356 * @return the movement method being used for this TextView. 1357 * This will frequently be null for non-EditText TextViews. 1358 */ 1359 public final MovementMethod getMovementMethod() { 1360 return mMovement; 1361 } 1362 1363 /** 1364 * Sets the movement method (arrow key handler) to be used for 1365 * this TextView. This can be null to disallow using the arrow keys 1366 * to move the cursor or scroll the view. 1367 * <p> 1368 * Be warned that if you want a TextView with a key listener or movement 1369 * method not to be focusable, or if you want a TextView without a 1370 * key listener or movement method to be focusable, you must call 1371 * {@link #setFocusable} again after calling this to get the focusability 1372 * back the way you want it. 1373 */ 1374 public final void setMovementMethod(MovementMethod movement) { 1375 mMovement = movement; 1376 1377 if (mMovement != null && !(mText instanceof Spannable)) 1378 setText(mText); 1379 1380 fixFocusableAndClickableSettings(); 1381 1382 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1383 prepareCursorControllers(); 1384 } 1385 1386 private void fixFocusableAndClickableSettings() { 1387 if ((mMovement != null) || mInput != null) { 1388 setFocusable(true); 1389 setClickable(true); 1390 setLongClickable(true); 1391 } else { 1392 setFocusable(false); 1393 setClickable(false); 1394 setLongClickable(false); 1395 } 1396 } 1397 1398 /** 1399 * @return the current transformation method for this TextView. 1400 * This will frequently be null except for single-line and password 1401 * fields. 1402 */ 1403 public final TransformationMethod getTransformationMethod() { 1404 return mTransformation; 1405 } 1406 1407 /** 1408 * Sets the transformation that is applied to the text that this 1409 * TextView is displaying. 1410 * 1411 * @attr ref android.R.styleable#TextView_password 1412 * @attr ref android.R.styleable#TextView_singleLine 1413 */ 1414 public final void setTransformationMethod(TransformationMethod method) { 1415 if (method == mTransformation) { 1416 // Avoid the setText() below if the transformation is 1417 // the same. 1418 return; 1419 } 1420 if (mTransformation != null) { 1421 if (mText instanceof Spannable) { 1422 ((Spannable) mText).removeSpan(mTransformation); 1423 } 1424 } 1425 1426 mTransformation = method; 1427 1428 if (method instanceof TransformationMethod2) { 1429 TransformationMethod2 method2 = (TransformationMethod2) method; 1430 mAllowTransformationLengthChange = !mTextIsSelectable && !(mText instanceof Editable); 1431 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 1432 } else { 1433 mAllowTransformationLengthChange = false; 1434 } 1435 1436 setText(mText); 1437 } 1438 1439 /** 1440 * Returns the top padding of the view, plus space for the top 1441 * Drawable if any. 1442 */ 1443 public int getCompoundPaddingTop() { 1444 final Drawables dr = mDrawables; 1445 if (dr == null || dr.mDrawableTop == null) { 1446 return mPaddingTop; 1447 } else { 1448 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1449 } 1450 } 1451 1452 /** 1453 * Returns the bottom padding of the view, plus space for the bottom 1454 * Drawable if any. 1455 */ 1456 public int getCompoundPaddingBottom() { 1457 final Drawables dr = mDrawables; 1458 if (dr == null || dr.mDrawableBottom == null) { 1459 return mPaddingBottom; 1460 } else { 1461 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1462 } 1463 } 1464 1465 /** 1466 * Returns the left padding of the view, plus space for the left 1467 * Drawable if any. 1468 */ 1469 public int getCompoundPaddingLeft() { 1470 final Drawables dr = mDrawables; 1471 if (dr == null || dr.mDrawableLeft == null) { 1472 return mPaddingLeft; 1473 } else { 1474 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1475 } 1476 } 1477 1478 /** 1479 * Returns the right padding of the view, plus space for the right 1480 * Drawable if any. 1481 */ 1482 public int getCompoundPaddingRight() { 1483 final Drawables dr = mDrawables; 1484 if (dr == null || dr.mDrawableRight == null) { 1485 return mPaddingRight; 1486 } else { 1487 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1488 } 1489 } 1490 1491 /** 1492 * Returns the start padding of the view, plus space for the start 1493 * Drawable if any. 1494 * 1495 * @hide 1496 */ 1497 public int getCompoundPaddingStart() { 1498 resolveDrawables(); 1499 switch(getResolvedLayoutDirection()) { 1500 default: 1501 case LAYOUT_DIRECTION_LTR: 1502 return getCompoundPaddingLeft(); 1503 case LAYOUT_DIRECTION_RTL: 1504 return getCompoundPaddingRight(); 1505 } 1506 } 1507 1508 /** 1509 * Returns the end padding of the view, plus space for the end 1510 * Drawable if any. 1511 * 1512 * @hide 1513 */ 1514 public int getCompoundPaddingEnd() { 1515 resolveDrawables(); 1516 switch(getResolvedLayoutDirection()) { 1517 default: 1518 case LAYOUT_DIRECTION_LTR: 1519 return getCompoundPaddingRight(); 1520 case LAYOUT_DIRECTION_RTL: 1521 return getCompoundPaddingLeft(); 1522 } 1523 } 1524 1525 /** 1526 * Returns the extended top padding of the view, including both the 1527 * top Drawable if any and any extra space to keep more than maxLines 1528 * of text from showing. It is only valid to call this after measuring. 1529 */ 1530 public int getExtendedPaddingTop() { 1531 if (mMaxMode != LINES) { 1532 return getCompoundPaddingTop(); 1533 } 1534 1535 if (mLayout.getLineCount() <= mMaximum) { 1536 return getCompoundPaddingTop(); 1537 } 1538 1539 int top = getCompoundPaddingTop(); 1540 int bottom = getCompoundPaddingBottom(); 1541 int viewht = getHeight() - top - bottom; 1542 int layoutht = mLayout.getLineTop(mMaximum); 1543 1544 if (layoutht >= viewht) { 1545 return top; 1546 } 1547 1548 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1549 if (gravity == Gravity.TOP) { 1550 return top; 1551 } else if (gravity == Gravity.BOTTOM) { 1552 return top + viewht - layoutht; 1553 } else { // (gravity == Gravity.CENTER_VERTICAL) 1554 return top + (viewht - layoutht) / 2; 1555 } 1556 } 1557 1558 /** 1559 * Returns the extended bottom padding of the view, including both the 1560 * bottom Drawable if any and any extra space to keep more than maxLines 1561 * of text from showing. It is only valid to call this after measuring. 1562 */ 1563 public int getExtendedPaddingBottom() { 1564 if (mMaxMode != LINES) { 1565 return getCompoundPaddingBottom(); 1566 } 1567 1568 if (mLayout.getLineCount() <= mMaximum) { 1569 return getCompoundPaddingBottom(); 1570 } 1571 1572 int top = getCompoundPaddingTop(); 1573 int bottom = getCompoundPaddingBottom(); 1574 int viewht = getHeight() - top - bottom; 1575 int layoutht = mLayout.getLineTop(mMaximum); 1576 1577 if (layoutht >= viewht) { 1578 return bottom; 1579 } 1580 1581 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1582 if (gravity == Gravity.TOP) { 1583 return bottom + viewht - layoutht; 1584 } else if (gravity == Gravity.BOTTOM) { 1585 return bottom; 1586 } else { // (gravity == Gravity.CENTER_VERTICAL) 1587 return bottom + (viewht - layoutht) / 2; 1588 } 1589 } 1590 1591 /** 1592 * Returns the total left padding of the view, including the left 1593 * Drawable if any. 1594 */ 1595 public int getTotalPaddingLeft() { 1596 return getCompoundPaddingLeft(); 1597 } 1598 1599 /** 1600 * Returns the total right padding of the view, including the right 1601 * Drawable if any. 1602 */ 1603 public int getTotalPaddingRight() { 1604 return getCompoundPaddingRight(); 1605 } 1606 1607 /** 1608 * Returns the total start padding of the view, including the start 1609 * Drawable if any. 1610 * 1611 * @hide 1612 */ 1613 public int getTotalPaddingStart() { 1614 return getCompoundPaddingStart(); 1615 } 1616 1617 /** 1618 * Returns the total end padding of the view, including the end 1619 * Drawable if any. 1620 * 1621 * @hide 1622 */ 1623 public int getTotalPaddingEnd() { 1624 return getCompoundPaddingEnd(); 1625 } 1626 1627 /** 1628 * Returns the total top padding of the view, including the top 1629 * Drawable if any, the extra space to keep more than maxLines 1630 * from showing, and the vertical offset for gravity, if any. 1631 */ 1632 public int getTotalPaddingTop() { 1633 return getExtendedPaddingTop() + getVerticalOffset(true); 1634 } 1635 1636 /** 1637 * Returns the total bottom padding of the view, including the bottom 1638 * Drawable if any, the extra space to keep more than maxLines 1639 * from showing, and the vertical offset for gravity, if any. 1640 */ 1641 public int getTotalPaddingBottom() { 1642 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1643 } 1644 1645 /** 1646 * Sets the Drawables (if any) to appear to the left of, above, 1647 * to the right of, and below the text. Use null if you do not 1648 * want a Drawable there. The Drawables must already have had 1649 * {@link Drawable#setBounds} called. 1650 * 1651 * @attr ref android.R.styleable#TextView_drawableLeft 1652 * @attr ref android.R.styleable#TextView_drawableTop 1653 * @attr ref android.R.styleable#TextView_drawableRight 1654 * @attr ref android.R.styleable#TextView_drawableBottom 1655 */ 1656 public void setCompoundDrawables(Drawable left, Drawable top, 1657 Drawable right, Drawable bottom) { 1658 Drawables dr = mDrawables; 1659 1660 final boolean drawables = left != null || top != null 1661 || right != null || bottom != null; 1662 1663 if (!drawables) { 1664 // Clearing drawables... can we free the data structure? 1665 if (dr != null) { 1666 if (dr.mDrawablePadding == 0) { 1667 mDrawables = null; 1668 } else { 1669 // We need to retain the last set padding, so just clear 1670 // out all of the fields in the existing structure. 1671 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1672 dr.mDrawableLeft = null; 1673 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1674 dr.mDrawableTop = null; 1675 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1676 dr.mDrawableRight = null; 1677 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1678 dr.mDrawableBottom = null; 1679 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1680 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1681 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1682 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1683 } 1684 } 1685 } else { 1686 if (dr == null) { 1687 mDrawables = dr = new Drawables(); 1688 } 1689 1690 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1691 dr.mDrawableLeft.setCallback(null); 1692 } 1693 dr.mDrawableLeft = left; 1694 1695 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1696 dr.mDrawableTop.setCallback(null); 1697 } 1698 dr.mDrawableTop = top; 1699 1700 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1701 dr.mDrawableRight.setCallback(null); 1702 } 1703 dr.mDrawableRight = right; 1704 1705 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1706 dr.mDrawableBottom.setCallback(null); 1707 } 1708 dr.mDrawableBottom = bottom; 1709 1710 final Rect compoundRect = dr.mCompoundRect; 1711 int[] state; 1712 1713 state = getDrawableState(); 1714 1715 if (left != null) { 1716 left.setState(state); 1717 left.copyBounds(compoundRect); 1718 left.setCallback(this); 1719 dr.mDrawableSizeLeft = compoundRect.width(); 1720 dr.mDrawableHeightLeft = compoundRect.height(); 1721 } else { 1722 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1723 } 1724 1725 if (right != null) { 1726 right.setState(state); 1727 right.copyBounds(compoundRect); 1728 right.setCallback(this); 1729 dr.mDrawableSizeRight = compoundRect.width(); 1730 dr.mDrawableHeightRight = compoundRect.height(); 1731 } else { 1732 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1733 } 1734 1735 if (top != null) { 1736 top.setState(state); 1737 top.copyBounds(compoundRect); 1738 top.setCallback(this); 1739 dr.mDrawableSizeTop = compoundRect.height(); 1740 dr.mDrawableWidthTop = compoundRect.width(); 1741 } else { 1742 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1743 } 1744 1745 if (bottom != null) { 1746 bottom.setState(state); 1747 bottom.copyBounds(compoundRect); 1748 bottom.setCallback(this); 1749 dr.mDrawableSizeBottom = compoundRect.height(); 1750 dr.mDrawableWidthBottom = compoundRect.width(); 1751 } else { 1752 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1753 } 1754 } 1755 1756 invalidate(); 1757 requestLayout(); 1758 } 1759 1760 /** 1761 * Sets the Drawables (if any) to appear to the left of, above, 1762 * to the right of, and below the text. Use 0 if you do not 1763 * want a Drawable there. The Drawables' bounds will be set to 1764 * their intrinsic bounds. 1765 * 1766 * @param left Resource identifier of the left Drawable. 1767 * @param top Resource identifier of the top Drawable. 1768 * @param right Resource identifier of the right Drawable. 1769 * @param bottom Resource identifier of the bottom Drawable. 1770 * 1771 * @attr ref android.R.styleable#TextView_drawableLeft 1772 * @attr ref android.R.styleable#TextView_drawableTop 1773 * @attr ref android.R.styleable#TextView_drawableRight 1774 * @attr ref android.R.styleable#TextView_drawableBottom 1775 */ 1776 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1777 final Resources resources = getContext().getResources(); 1778 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1779 top != 0 ? resources.getDrawable(top) : null, 1780 right != 0 ? resources.getDrawable(right) : null, 1781 bottom != 0 ? resources.getDrawable(bottom) : null); 1782 } 1783 1784 /** 1785 * Sets the Drawables (if any) to appear to the left of, above, 1786 * to the right of, and below the text. Use null if you do not 1787 * want a Drawable there. The Drawables' bounds will be set to 1788 * their intrinsic bounds. 1789 * 1790 * @attr ref android.R.styleable#TextView_drawableLeft 1791 * @attr ref android.R.styleable#TextView_drawableTop 1792 * @attr ref android.R.styleable#TextView_drawableRight 1793 * @attr ref android.R.styleable#TextView_drawableBottom 1794 */ 1795 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1796 Drawable right, Drawable bottom) { 1797 1798 if (left != null) { 1799 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1800 } 1801 if (right != null) { 1802 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1803 } 1804 if (top != null) { 1805 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1806 } 1807 if (bottom != null) { 1808 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1809 } 1810 setCompoundDrawables(left, top, right, bottom); 1811 } 1812 1813 /** 1814 * Sets the Drawables (if any) to appear to the start of, above, 1815 * to the end of, and below the text. Use null if you do not 1816 * want a Drawable there. The Drawables must already have had 1817 * {@link Drawable#setBounds} called. 1818 * 1819 * @attr ref android.R.styleable#TextView_drawableStart 1820 * @attr ref android.R.styleable#TextView_drawableTop 1821 * @attr ref android.R.styleable#TextView_drawableEnd 1822 * @attr ref android.R.styleable#TextView_drawableBottom 1823 * 1824 * @hide 1825 */ 1826 public void setCompoundDrawablesRelative(Drawable start, Drawable top, 1827 Drawable end, Drawable bottom) { 1828 Drawables dr = mDrawables; 1829 1830 final boolean drawables = start != null || top != null 1831 || end != null || bottom != null; 1832 1833 if (!drawables) { 1834 // Clearing drawables... can we free the data structure? 1835 if (dr != null) { 1836 if (dr.mDrawablePadding == 0) { 1837 mDrawables = null; 1838 } else { 1839 // We need to retain the last set padding, so just clear 1840 // out all of the fields in the existing structure. 1841 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 1842 dr.mDrawableStart = null; 1843 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1844 dr.mDrawableTop = null; 1845 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 1846 dr.mDrawableEnd = null; 1847 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1848 dr.mDrawableBottom = null; 1849 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1850 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1851 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1852 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1853 } 1854 } 1855 } else { 1856 if (dr == null) { 1857 mDrawables = dr = new Drawables(); 1858 } 1859 1860 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 1861 dr.mDrawableStart.setCallback(null); 1862 } 1863 dr.mDrawableStart = start; 1864 1865 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1866 dr.mDrawableTop.setCallback(null); 1867 } 1868 dr.mDrawableTop = top; 1869 1870 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 1871 dr.mDrawableEnd.setCallback(null); 1872 } 1873 dr.mDrawableEnd = end; 1874 1875 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1876 dr.mDrawableBottom.setCallback(null); 1877 } 1878 dr.mDrawableBottom = bottom; 1879 1880 final Rect compoundRect = dr.mCompoundRect; 1881 int[] state; 1882 1883 state = getDrawableState(); 1884 1885 if (start != null) { 1886 start.setState(state); 1887 start.copyBounds(compoundRect); 1888 start.setCallback(this); 1889 dr.mDrawableSizeStart = compoundRect.width(); 1890 dr.mDrawableHeightStart = compoundRect.height(); 1891 } else { 1892 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1893 } 1894 1895 if (end != null) { 1896 end.setState(state); 1897 end.copyBounds(compoundRect); 1898 end.setCallback(this); 1899 dr.mDrawableSizeEnd = compoundRect.width(); 1900 dr.mDrawableHeightEnd = compoundRect.height(); 1901 } else { 1902 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1903 } 1904 1905 if (top != null) { 1906 top.setState(state); 1907 top.copyBounds(compoundRect); 1908 top.setCallback(this); 1909 dr.mDrawableSizeTop = compoundRect.height(); 1910 dr.mDrawableWidthTop = compoundRect.width(); 1911 } else { 1912 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1913 } 1914 1915 if (bottom != null) { 1916 bottom.setState(state); 1917 bottom.copyBounds(compoundRect); 1918 bottom.setCallback(this); 1919 dr.mDrawableSizeBottom = compoundRect.height(); 1920 dr.mDrawableWidthBottom = compoundRect.width(); 1921 } else { 1922 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1923 } 1924 } 1925 1926 resolveDrawables(); 1927 invalidate(); 1928 requestLayout(); 1929 } 1930 1931 /** 1932 * Sets the Drawables (if any) to appear to the start of, above, 1933 * to the end of, and below the text. Use 0 if you do not 1934 * want a Drawable there. The Drawables' bounds will be set to 1935 * their intrinsic bounds. 1936 * 1937 * @param start Resource identifier of the start Drawable. 1938 * @param top Resource identifier of the top Drawable. 1939 * @param end Resource identifier of the end Drawable. 1940 * @param bottom Resource identifier of the bottom Drawable. 1941 * 1942 * @attr ref android.R.styleable#TextView_drawableStart 1943 * @attr ref android.R.styleable#TextView_drawableTop 1944 * @attr ref android.R.styleable#TextView_drawableEnd 1945 * @attr ref android.R.styleable#TextView_drawableBottom 1946 * 1947 * @hide 1948 */ 1949 public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end, 1950 int bottom) { 1951 resetResolvedDrawables(); 1952 final Resources resources = getContext().getResources(); 1953 setCompoundDrawablesRelativeWithIntrinsicBounds( 1954 start != 0 ? resources.getDrawable(start) : null, 1955 top != 0 ? resources.getDrawable(top) : null, 1956 end != 0 ? resources.getDrawable(end) : null, 1957 bottom != 0 ? resources.getDrawable(bottom) : null); 1958 } 1959 1960 /** 1961 * Sets the Drawables (if any) to appear to the start of, above, 1962 * to the end of, and below the text. Use null if you do not 1963 * want a Drawable there. The Drawables' bounds will be set to 1964 * their intrinsic bounds. 1965 * 1966 * @attr ref android.R.styleable#TextView_drawableStart 1967 * @attr ref android.R.styleable#TextView_drawableTop 1968 * @attr ref android.R.styleable#TextView_drawableEnd 1969 * @attr ref android.R.styleable#TextView_drawableBottom 1970 * 1971 * @hide 1972 */ 1973 public void setCompoundDrawablesRelativeWithIntrinsicBounds(Drawable start, Drawable top, 1974 Drawable end, Drawable bottom) { 1975 1976 resetResolvedDrawables(); 1977 if (start != null) { 1978 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1979 } 1980 if (end != null) { 1981 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1982 } 1983 if (top != null) { 1984 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1985 } 1986 if (bottom != null) { 1987 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1988 } 1989 setCompoundDrawablesRelative(start, top, end, bottom); 1990 } 1991 1992 /** 1993 * Returns drawables for the left, top, right, and bottom borders. 1994 */ 1995 public Drawable[] getCompoundDrawables() { 1996 final Drawables dr = mDrawables; 1997 if (dr != null) { 1998 return new Drawable[] { 1999 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 2000 }; 2001 } else { 2002 return new Drawable[] { null, null, null, null }; 2003 } 2004 } 2005 2006 /** 2007 * Returns drawables for the start, top, end, and bottom borders. 2008 * 2009 * @hide 2010 */ 2011 public Drawable[] getCompoundDrawablesRelative() { 2012 final Drawables dr = mDrawables; 2013 if (dr != null) { 2014 return new Drawable[] { 2015 dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom 2016 }; 2017 } else { 2018 return new Drawable[] { null, null, null, null }; 2019 } 2020 } 2021 2022 /** 2023 * Sets the size of the padding between the compound drawables and 2024 * the text. 2025 * 2026 * @attr ref android.R.styleable#TextView_drawablePadding 2027 */ 2028 public void setCompoundDrawablePadding(int pad) { 2029 Drawables dr = mDrawables; 2030 if (pad == 0) { 2031 if (dr != null) { 2032 dr.mDrawablePadding = pad; 2033 } 2034 } else { 2035 if (dr == null) { 2036 mDrawables = dr = new Drawables(); 2037 } 2038 dr.mDrawablePadding = pad; 2039 } 2040 2041 invalidate(); 2042 requestLayout(); 2043 } 2044 2045 /** 2046 * Returns the padding between the compound drawables and the text. 2047 */ 2048 public int getCompoundDrawablePadding() { 2049 final Drawables dr = mDrawables; 2050 return dr != null ? dr.mDrawablePadding : 0; 2051 } 2052 2053 @Override 2054 public void setPadding(int left, int top, int right, int bottom) { 2055 if (left != mPaddingLeft || 2056 right != mPaddingRight || 2057 top != mPaddingTop || 2058 bottom != mPaddingBottom) { 2059 nullLayouts(); 2060 } 2061 2062 // the super call will requestLayout() 2063 super.setPadding(left, top, right, bottom); 2064 invalidate(); 2065 } 2066 2067 /** 2068 * Gets the autolink mask of the text. See {@link 2069 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2070 * possible values. 2071 * 2072 * @attr ref android.R.styleable#TextView_autoLink 2073 */ 2074 public final int getAutoLinkMask() { 2075 return mAutoLinkMask; 2076 } 2077 2078 /** 2079 * Sets the text color, size, style, hint color, and highlight color 2080 * from the specified TextAppearance resource. 2081 */ 2082 public void setTextAppearance(Context context, int resid) { 2083 TypedArray appearance = 2084 context.obtainStyledAttributes(resid, 2085 com.android.internal.R.styleable.TextAppearance); 2086 2087 int color; 2088 ColorStateList colors; 2089 int ts; 2090 2091 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 2092 if (color != 0) { 2093 setHighlightColor(color); 2094 } 2095 2096 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2097 TextAppearance_textColor); 2098 if (colors != null) { 2099 setTextColor(colors); 2100 } 2101 2102 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 2103 TextAppearance_textSize, 0); 2104 if (ts != 0) { 2105 setRawTextSize(ts); 2106 } 2107 2108 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2109 TextAppearance_textColorHint); 2110 if (colors != null) { 2111 setHintTextColor(colors); 2112 } 2113 2114 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2115 TextAppearance_textColorLink); 2116 if (colors != null) { 2117 setLinkTextColor(colors); 2118 } 2119 2120 int typefaceIndex, styleIndex; 2121 2122 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 2123 TextAppearance_typeface, -1); 2124 styleIndex = appearance.getInt(com.android.internal.R.styleable. 2125 TextAppearance_textStyle, -1); 2126 2127 setTypefaceByIndex(typefaceIndex, styleIndex); 2128 2129 if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps, 2130 false)) { 2131 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 2132 } 2133 2134 appearance.recycle(); 2135 } 2136 2137 /** 2138 * @return the size (in pixels) of the default text size in this TextView. 2139 */ 2140 public float getTextSize() { 2141 return mTextPaint.getTextSize(); 2142 } 2143 2144 /** 2145 * Set the default text size to the given value, interpreted as "scaled 2146 * pixel" units. This size is adjusted based on the current density and 2147 * user font size preference. 2148 * 2149 * @param size The scaled pixel size. 2150 * 2151 * @attr ref android.R.styleable#TextView_textSize 2152 */ 2153 @android.view.RemotableViewMethod 2154 public void setTextSize(float size) { 2155 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 2156 } 2157 2158 /** 2159 * Set the default text size to a given unit and value. See {@link 2160 * TypedValue} for the possible dimension units. 2161 * 2162 * @param unit The desired dimension unit. 2163 * @param size The desired size in the given units. 2164 * 2165 * @attr ref android.R.styleable#TextView_textSize 2166 */ 2167 public void setTextSize(int unit, float size) { 2168 Context c = getContext(); 2169 Resources r; 2170 2171 if (c == null) 2172 r = Resources.getSystem(); 2173 else 2174 r = c.getResources(); 2175 2176 setRawTextSize(TypedValue.applyDimension( 2177 unit, size, r.getDisplayMetrics())); 2178 } 2179 2180 private void setRawTextSize(float size) { 2181 if (size != mTextPaint.getTextSize()) { 2182 mTextPaint.setTextSize(size); 2183 2184 if (mLayout != null) { 2185 nullLayouts(); 2186 requestLayout(); 2187 invalidate(); 2188 } 2189 } 2190 } 2191 2192 /** 2193 * @return the extent by which text is currently being stretched 2194 * horizontally. This will usually be 1. 2195 */ 2196 public float getTextScaleX() { 2197 return mTextPaint.getTextScaleX(); 2198 } 2199 2200 /** 2201 * Sets the extent by which text should be stretched horizontally. 2202 * 2203 * @attr ref android.R.styleable#TextView_textScaleX 2204 */ 2205 @android.view.RemotableViewMethod 2206 public void setTextScaleX(float size) { 2207 if (size != mTextPaint.getTextScaleX()) { 2208 mUserSetTextScaleX = true; 2209 mTextPaint.setTextScaleX(size); 2210 2211 if (mLayout != null) { 2212 nullLayouts(); 2213 requestLayout(); 2214 invalidate(); 2215 } 2216 } 2217 } 2218 2219 /** 2220 * Sets the typeface and style in which the text should be displayed. 2221 * Note that not all Typeface families actually have bold and italic 2222 * variants, so you may need to use 2223 * {@link #setTypeface(Typeface, int)} to get the appearance 2224 * that you actually want. 2225 * 2226 * @attr ref android.R.styleable#TextView_typeface 2227 * @attr ref android.R.styleable#TextView_textStyle 2228 */ 2229 public void setTypeface(Typeface tf) { 2230 if (mTextPaint.getTypeface() != tf) { 2231 mTextPaint.setTypeface(tf); 2232 2233 if (mLayout != null) { 2234 nullLayouts(); 2235 requestLayout(); 2236 invalidate(); 2237 } 2238 } 2239 } 2240 2241 /** 2242 * @return the current typeface and style in which the text is being 2243 * displayed. 2244 */ 2245 public Typeface getTypeface() { 2246 return mTextPaint.getTypeface(); 2247 } 2248 2249 /** 2250 * Sets the text color for all the states (normal, selected, 2251 * focused) to be this color. 2252 * 2253 * @attr ref android.R.styleable#TextView_textColor 2254 */ 2255 @android.view.RemotableViewMethod 2256 public void setTextColor(int color) { 2257 mTextColor = ColorStateList.valueOf(color); 2258 updateTextColors(); 2259 } 2260 2261 /** 2262 * Sets the text color. 2263 * 2264 * @attr ref android.R.styleable#TextView_textColor 2265 */ 2266 public void setTextColor(ColorStateList colors) { 2267 if (colors == null) { 2268 throw new NullPointerException(); 2269 } 2270 2271 mTextColor = colors; 2272 updateTextColors(); 2273 } 2274 2275 /** 2276 * Return the set of text colors. 2277 * 2278 * @return Returns the set of text colors. 2279 */ 2280 public final ColorStateList getTextColors() { 2281 return mTextColor; 2282 } 2283 2284 /** 2285 * <p>Return the current color selected for normal text.</p> 2286 * 2287 * @return Returns the current text color. 2288 */ 2289 public final int getCurrentTextColor() { 2290 return mCurTextColor; 2291 } 2292 2293 /** 2294 * Sets the color used to display the selection highlight. 2295 * 2296 * @attr ref android.R.styleable#TextView_textColorHighlight 2297 */ 2298 @android.view.RemotableViewMethod 2299 public void setHighlightColor(int color) { 2300 if (mHighlightColor != color) { 2301 mHighlightColor = color; 2302 invalidate(); 2303 } 2304 } 2305 2306 /** 2307 * Gives the text a shadow of the specified radius and color, the specified 2308 * distance from its normal position. 2309 * 2310 * @attr ref android.R.styleable#TextView_shadowColor 2311 * @attr ref android.R.styleable#TextView_shadowDx 2312 * @attr ref android.R.styleable#TextView_shadowDy 2313 * @attr ref android.R.styleable#TextView_shadowRadius 2314 */ 2315 public void setShadowLayer(float radius, float dx, float dy, int color) { 2316 mTextPaint.setShadowLayer(radius, dx, dy, color); 2317 2318 mShadowRadius = radius; 2319 mShadowDx = dx; 2320 mShadowDy = dy; 2321 2322 invalidate(); 2323 } 2324 2325 /** 2326 * @return the base paint used for the text. Please use this only to 2327 * consult the Paint's properties and not to change them. 2328 */ 2329 public TextPaint getPaint() { 2330 return mTextPaint; 2331 } 2332 2333 /** 2334 * Sets the autolink mask of the text. See {@link 2335 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2336 * possible values. 2337 * 2338 * @attr ref android.R.styleable#TextView_autoLink 2339 */ 2340 @android.view.RemotableViewMethod 2341 public final void setAutoLinkMask(int mask) { 2342 mAutoLinkMask = mask; 2343 } 2344 2345 /** 2346 * Sets whether the movement method will automatically be set to 2347 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2348 * set to nonzero and links are detected in {@link #setText}. 2349 * The default is true. 2350 * 2351 * @attr ref android.R.styleable#TextView_linksClickable 2352 */ 2353 @android.view.RemotableViewMethod 2354 public final void setLinksClickable(boolean whether) { 2355 mLinksClickable = whether; 2356 } 2357 2358 /** 2359 * Returns whether the movement method will automatically be set to 2360 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2361 * set to nonzero and links are detected in {@link #setText}. 2362 * The default is true. 2363 * 2364 * @attr ref android.R.styleable#TextView_linksClickable 2365 */ 2366 public final boolean getLinksClickable() { 2367 return mLinksClickable; 2368 } 2369 2370 /** 2371 * Returns the list of URLSpans attached to the text 2372 * (by {@link Linkify} or otherwise) if any. You can call 2373 * {@link URLSpan#getURL} on them to find where they link to 2374 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2375 * to find the region of the text they are attached to. 2376 */ 2377 public URLSpan[] getUrls() { 2378 if (mText instanceof Spanned) { 2379 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2380 } else { 2381 return new URLSpan[0]; 2382 } 2383 } 2384 2385 /** 2386 * Sets the color of the hint text. 2387 * 2388 * @attr ref android.R.styleable#TextView_textColorHint 2389 */ 2390 @android.view.RemotableViewMethod 2391 public final void setHintTextColor(int color) { 2392 mHintTextColor = ColorStateList.valueOf(color); 2393 updateTextColors(); 2394 } 2395 2396 /** 2397 * Sets the color of the hint text. 2398 * 2399 * @attr ref android.R.styleable#TextView_textColorHint 2400 */ 2401 public final void setHintTextColor(ColorStateList colors) { 2402 mHintTextColor = colors; 2403 updateTextColors(); 2404 } 2405 2406 /** 2407 * <p>Return the color used to paint the hint text.</p> 2408 * 2409 * @return Returns the list of hint text colors. 2410 */ 2411 public final ColorStateList getHintTextColors() { 2412 return mHintTextColor; 2413 } 2414 2415 /** 2416 * <p>Return the current color selected to paint the hint text.</p> 2417 * 2418 * @return Returns the current hint text color. 2419 */ 2420 public final int getCurrentHintTextColor() { 2421 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2422 } 2423 2424 /** 2425 * Sets the color of links in the text. 2426 * 2427 * @attr ref android.R.styleable#TextView_textColorLink 2428 */ 2429 @android.view.RemotableViewMethod 2430 public final void setLinkTextColor(int color) { 2431 mLinkTextColor = ColorStateList.valueOf(color); 2432 updateTextColors(); 2433 } 2434 2435 /** 2436 * Sets the color of links in the text. 2437 * 2438 * @attr ref android.R.styleable#TextView_textColorLink 2439 */ 2440 public final void setLinkTextColor(ColorStateList colors) { 2441 mLinkTextColor = colors; 2442 updateTextColors(); 2443 } 2444 2445 /** 2446 * <p>Returns the color used to paint links in the text.</p> 2447 * 2448 * @return Returns the list of link text colors. 2449 */ 2450 public final ColorStateList getLinkTextColors() { 2451 return mLinkTextColor; 2452 } 2453 2454 /** 2455 * Sets the horizontal alignment of the text and the 2456 * vertical gravity that will be used when there is extra space 2457 * in the TextView beyond what is required for the text itself. 2458 * 2459 * @see android.view.Gravity 2460 * @attr ref android.R.styleable#TextView_gravity 2461 */ 2462 public void setGravity(int gravity) { 2463 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2464 gravity |= Gravity.START; 2465 } 2466 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2467 gravity |= Gravity.TOP; 2468 } 2469 2470 boolean newLayout = false; 2471 2472 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 2473 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 2474 newLayout = true; 2475 } 2476 2477 if (gravity != mGravity) { 2478 invalidate(); 2479 mLayoutAlignment = null; 2480 } 2481 2482 mGravity = gravity; 2483 2484 if (mLayout != null && newLayout) { 2485 // XXX this is heavy-handed because no actual content changes. 2486 int want = mLayout.getWidth(); 2487 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2488 2489 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2490 mRight - mLeft - getCompoundPaddingLeft() - 2491 getCompoundPaddingRight(), true); 2492 } 2493 } 2494 2495 /** 2496 * Returns the horizontal and vertical alignment of this TextView. 2497 * 2498 * @see android.view.Gravity 2499 * @attr ref android.R.styleable#TextView_gravity 2500 */ 2501 public int getGravity() { 2502 return mGravity; 2503 } 2504 2505 /** 2506 * @return the flags on the Paint being used to display the text. 2507 * @see Paint#getFlags 2508 */ 2509 public int getPaintFlags() { 2510 return mTextPaint.getFlags(); 2511 } 2512 2513 /** 2514 * Sets flags on the Paint being used to display the text and 2515 * reflows the text if they are different from the old flags. 2516 * @see Paint#setFlags 2517 */ 2518 @android.view.RemotableViewMethod 2519 public void setPaintFlags(int flags) { 2520 if (mTextPaint.getFlags() != flags) { 2521 mTextPaint.setFlags(flags); 2522 2523 if (mLayout != null) { 2524 nullLayouts(); 2525 requestLayout(); 2526 invalidate(); 2527 } 2528 } 2529 } 2530 2531 /** 2532 * Sets whether the text should be allowed to be wider than the 2533 * View is. If false, it will be wrapped to the width of the View. 2534 * 2535 * @attr ref android.R.styleable#TextView_scrollHorizontally 2536 */ 2537 public void setHorizontallyScrolling(boolean whether) { 2538 if (mHorizontallyScrolling != whether) { 2539 mHorizontallyScrolling = whether; 2540 2541 if (mLayout != null) { 2542 nullLayouts(); 2543 requestLayout(); 2544 invalidate(); 2545 } 2546 } 2547 } 2548 2549 /** 2550 * Makes the TextView at least this many lines tall. 2551 * 2552 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2553 * set this value to 1. 2554 * 2555 * @attr ref android.R.styleable#TextView_minLines 2556 */ 2557 @android.view.RemotableViewMethod 2558 public void setMinLines(int minlines) { 2559 mMinimum = minlines; 2560 mMinMode = LINES; 2561 2562 requestLayout(); 2563 invalidate(); 2564 } 2565 2566 /** 2567 * Makes the TextView at least this many pixels tall. 2568 * 2569 * Setting this value overrides any other (minimum) number of lines setting. 2570 * 2571 * @attr ref android.R.styleable#TextView_minHeight 2572 */ 2573 @android.view.RemotableViewMethod 2574 public void setMinHeight(int minHeight) { 2575 mMinimum = minHeight; 2576 mMinMode = PIXELS; 2577 2578 requestLayout(); 2579 invalidate(); 2580 } 2581 2582 /** 2583 * Makes the TextView at most this many lines tall. 2584 * 2585 * Setting this value overrides any other (maximum) height setting. 2586 * 2587 * @attr ref android.R.styleable#TextView_maxLines 2588 */ 2589 @android.view.RemotableViewMethod 2590 public void setMaxLines(int maxlines) { 2591 mMaximum = maxlines; 2592 mMaxMode = LINES; 2593 2594 requestLayout(); 2595 invalidate(); 2596 } 2597 2598 /** 2599 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2600 * {@link #setMaxLines(int)} method. 2601 * 2602 * Setting this value overrides any other (maximum) number of lines setting. 2603 * 2604 * @attr ref android.R.styleable#TextView_maxHeight 2605 */ 2606 @android.view.RemotableViewMethod 2607 public void setMaxHeight(int maxHeight) { 2608 mMaximum = maxHeight; 2609 mMaxMode = PIXELS; 2610 2611 requestLayout(); 2612 invalidate(); 2613 } 2614 2615 /** 2616 * Makes the TextView exactly this many lines tall. 2617 * 2618 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2619 * height setting. A single line TextView will set this value to 1. 2620 * 2621 * @attr ref android.R.styleable#TextView_lines 2622 */ 2623 @android.view.RemotableViewMethod 2624 public void setLines(int lines) { 2625 mMaximum = mMinimum = lines; 2626 mMaxMode = mMinMode = LINES; 2627 2628 requestLayout(); 2629 invalidate(); 2630 } 2631 2632 /** 2633 * Makes the TextView exactly this many pixels tall. 2634 * You could do the same thing by specifying this number in the 2635 * LayoutParams. 2636 * 2637 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2638 * height setting. 2639 * 2640 * @attr ref android.R.styleable#TextView_height 2641 */ 2642 @android.view.RemotableViewMethod 2643 public void setHeight(int pixels) { 2644 mMaximum = mMinimum = pixels; 2645 mMaxMode = mMinMode = PIXELS; 2646 2647 requestLayout(); 2648 invalidate(); 2649 } 2650 2651 /** 2652 * Makes the TextView at least this many ems wide 2653 * 2654 * @attr ref android.R.styleable#TextView_minEms 2655 */ 2656 @android.view.RemotableViewMethod 2657 public void setMinEms(int minems) { 2658 mMinWidth = minems; 2659 mMinWidthMode = EMS; 2660 2661 requestLayout(); 2662 invalidate(); 2663 } 2664 2665 /** 2666 * Makes the TextView at least this many pixels wide 2667 * 2668 * @attr ref android.R.styleable#TextView_minWidth 2669 */ 2670 @android.view.RemotableViewMethod 2671 public void setMinWidth(int minpixels) { 2672 mMinWidth = minpixels; 2673 mMinWidthMode = PIXELS; 2674 2675 requestLayout(); 2676 invalidate(); 2677 } 2678 2679 /** 2680 * Makes the TextView at most this many ems wide 2681 * 2682 * @attr ref android.R.styleable#TextView_maxEms 2683 */ 2684 @android.view.RemotableViewMethod 2685 public void setMaxEms(int maxems) { 2686 mMaxWidth = maxems; 2687 mMaxWidthMode = EMS; 2688 2689 requestLayout(); 2690 invalidate(); 2691 } 2692 2693 /** 2694 * Makes the TextView at most this many pixels wide 2695 * 2696 * @attr ref android.R.styleable#TextView_maxWidth 2697 */ 2698 @android.view.RemotableViewMethod 2699 public void setMaxWidth(int maxpixels) { 2700 mMaxWidth = maxpixels; 2701 mMaxWidthMode = PIXELS; 2702 2703 requestLayout(); 2704 invalidate(); 2705 } 2706 2707 /** 2708 * Makes the TextView exactly this many ems wide 2709 * 2710 * @attr ref android.R.styleable#TextView_ems 2711 */ 2712 @android.view.RemotableViewMethod 2713 public void setEms(int ems) { 2714 mMaxWidth = mMinWidth = ems; 2715 mMaxWidthMode = mMinWidthMode = EMS; 2716 2717 requestLayout(); 2718 invalidate(); 2719 } 2720 2721 /** 2722 * Makes the TextView exactly this many pixels wide. 2723 * You could do the same thing by specifying this number in the 2724 * LayoutParams. 2725 * 2726 * @attr ref android.R.styleable#TextView_width 2727 */ 2728 @android.view.RemotableViewMethod 2729 public void setWidth(int pixels) { 2730 mMaxWidth = mMinWidth = pixels; 2731 mMaxWidthMode = mMinWidthMode = PIXELS; 2732 2733 requestLayout(); 2734 invalidate(); 2735 } 2736 2737 2738 /** 2739 * Sets line spacing for this TextView. Each line will have its height 2740 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2741 * 2742 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2743 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2744 */ 2745 public void setLineSpacing(float add, float mult) { 2746 if (mSpacingAdd != add || mSpacingMult != mult) { 2747 mSpacingAdd = add; 2748 mSpacingMult = mult; 2749 2750 if (mLayout != null) { 2751 nullLayouts(); 2752 requestLayout(); 2753 invalidate(); 2754 } 2755 } 2756 } 2757 2758 /** 2759 * Convenience method: Append the specified text to the TextView's 2760 * display buffer, upgrading it to BufferType.EDITABLE if it was 2761 * not already editable. 2762 */ 2763 public final void append(CharSequence text) { 2764 append(text, 0, text.length()); 2765 } 2766 2767 /** 2768 * Convenience method: Append the specified text slice to the TextView's 2769 * display buffer, upgrading it to BufferType.EDITABLE if it was 2770 * not already editable. 2771 */ 2772 public void append(CharSequence text, int start, int end) { 2773 if (!(mText instanceof Editable)) { 2774 setText(mText, BufferType.EDITABLE); 2775 } 2776 2777 ((Editable) mText).append(text, start, end); 2778 } 2779 2780 private void updateTextColors() { 2781 boolean inval = false; 2782 int color = mTextColor.getColorForState(getDrawableState(), 0); 2783 if (color != mCurTextColor) { 2784 mCurTextColor = color; 2785 inval = true; 2786 } 2787 if (mLinkTextColor != null) { 2788 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2789 if (color != mTextPaint.linkColor) { 2790 mTextPaint.linkColor = color; 2791 inval = true; 2792 } 2793 } 2794 if (mHintTextColor != null) { 2795 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2796 if (color != mCurHintTextColor && mText.length() == 0) { 2797 mCurHintTextColor = color; 2798 inval = true; 2799 } 2800 } 2801 if (inval) { 2802 invalidate(); 2803 } 2804 } 2805 2806 @Override 2807 protected void drawableStateChanged() { 2808 super.drawableStateChanged(); 2809 if (mTextColor != null && mTextColor.isStateful() 2810 || (mHintTextColor != null && mHintTextColor.isStateful()) 2811 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2812 updateTextColors(); 2813 } 2814 2815 final Drawables dr = mDrawables; 2816 if (dr != null) { 2817 int[] state = getDrawableState(); 2818 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2819 dr.mDrawableTop.setState(state); 2820 } 2821 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2822 dr.mDrawableBottom.setState(state); 2823 } 2824 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2825 dr.mDrawableLeft.setState(state); 2826 } 2827 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2828 dr.mDrawableRight.setState(state); 2829 } 2830 if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) { 2831 dr.mDrawableStart.setState(state); 2832 } 2833 if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) { 2834 dr.mDrawableEnd.setState(state); 2835 } 2836 } 2837 } 2838 2839 /** 2840 * User interface state that is stored by TextView for implementing 2841 * {@link View#onSaveInstanceState}. 2842 */ 2843 public static class SavedState extends BaseSavedState { 2844 int selStart; 2845 int selEnd; 2846 CharSequence text; 2847 boolean frozenWithFocus; 2848 CharSequence error; 2849 2850 SavedState(Parcelable superState) { 2851 super(superState); 2852 } 2853 2854 @Override 2855 public void writeToParcel(Parcel out, int flags) { 2856 super.writeToParcel(out, flags); 2857 out.writeInt(selStart); 2858 out.writeInt(selEnd); 2859 out.writeInt(frozenWithFocus ? 1 : 0); 2860 TextUtils.writeToParcel(text, out, flags); 2861 2862 if (error == null) { 2863 out.writeInt(0); 2864 } else { 2865 out.writeInt(1); 2866 TextUtils.writeToParcel(error, out, flags); 2867 } 2868 } 2869 2870 @Override 2871 public String toString() { 2872 String str = "TextView.SavedState{" 2873 + Integer.toHexString(System.identityHashCode(this)) 2874 + " start=" + selStart + " end=" + selEnd; 2875 if (text != null) { 2876 str += " text=" + text; 2877 } 2878 return str + "}"; 2879 } 2880 2881 @SuppressWarnings("hiding") 2882 public static final Parcelable.Creator<SavedState> CREATOR 2883 = new Parcelable.Creator<SavedState>() { 2884 public SavedState createFromParcel(Parcel in) { 2885 return new SavedState(in); 2886 } 2887 2888 public SavedState[] newArray(int size) { 2889 return new SavedState[size]; 2890 } 2891 }; 2892 2893 private SavedState(Parcel in) { 2894 super(in); 2895 selStart = in.readInt(); 2896 selEnd = in.readInt(); 2897 frozenWithFocus = (in.readInt() != 0); 2898 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2899 2900 if (in.readInt() != 0) { 2901 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2902 } 2903 } 2904 } 2905 2906 @Override 2907 public Parcelable onSaveInstanceState() { 2908 Parcelable superState = super.onSaveInstanceState(); 2909 2910 // Save state if we are forced to 2911 boolean save = mFreezesText; 2912 int start = 0; 2913 int end = 0; 2914 2915 if (mText != null) { 2916 start = getSelectionStart(); 2917 end = getSelectionEnd(); 2918 if (start >= 0 || end >= 0) { 2919 // Or save state if there is a selection 2920 save = true; 2921 } 2922 } 2923 2924 if (save) { 2925 SavedState ss = new SavedState(superState); 2926 // XXX Should also save the current scroll position! 2927 ss.selStart = start; 2928 ss.selEnd = end; 2929 2930 if (mText instanceof Spanned) { 2931 /* 2932 * Calling setText() strips off any ChangeWatchers; 2933 * strip them now to avoid leaking references. 2934 * But do it to a copy so that if there are any 2935 * further changes to the text of this view, it 2936 * won't get into an inconsistent state. 2937 */ 2938 2939 Spannable sp = new SpannableString(mText); 2940 2941 for (ChangeWatcher cw : sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2942 sp.removeSpan(cw); 2943 } 2944 2945 SuggestionSpan[] suggestionSpans = sp.getSpans(0, sp.length(), SuggestionSpan.class); 2946 for (int i = 0; i < suggestionSpans.length; i++) { 2947 int flags = suggestionSpans[i].getFlags(); 2948 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 2949 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 2950 sp.removeSpan(suggestionSpans[i]); 2951 } 2952 } 2953 2954 sp.removeSpan(mSuggestionRangeSpan); 2955 2956 ss.text = sp; 2957 } else { 2958 ss.text = mText.toString(); 2959 } 2960 2961 if (isFocused() && start >= 0 && end >= 0) { 2962 ss.frozenWithFocus = true; 2963 } 2964 2965 ss.error = mError; 2966 2967 return ss; 2968 } 2969 2970 return superState; 2971 } 2972 2973 @Override 2974 public void onRestoreInstanceState(Parcelable state) { 2975 if (!(state instanceof SavedState)) { 2976 super.onRestoreInstanceState(state); 2977 return; 2978 } 2979 2980 SavedState ss = (SavedState)state; 2981 super.onRestoreInstanceState(ss.getSuperState()); 2982 2983 // XXX restore buffer type too, as well as lots of other stuff 2984 if (ss.text != null) { 2985 setText(ss.text); 2986 } 2987 2988 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2989 if (mText instanceof Spannable) { 2990 int len = mText.length(); 2991 2992 if (ss.selStart > len || ss.selEnd > len) { 2993 String restored = ""; 2994 2995 if (ss.text != null) { 2996 restored = "(restored) "; 2997 } 2998 2999 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 3000 "/" + ss.selEnd + " out of range for " + restored + 3001 "text " + mText); 3002 } else { 3003 Selection.setSelection((Spannable) mText, ss.selStart, 3004 ss.selEnd); 3005 3006 if (ss.frozenWithFocus) { 3007 mFrozenWithFocus = true; 3008 } 3009 } 3010 } 3011 } 3012 3013 if (ss.error != null) { 3014 final CharSequence error = ss.error; 3015 // Display the error later, after the first layout pass 3016 post(new Runnable() { 3017 public void run() { 3018 setError(error); 3019 } 3020 }); 3021 } 3022 } 3023 3024 /** 3025 * Control whether this text view saves its entire text contents when 3026 * freezing to an icicle, in addition to dynamic state such as cursor 3027 * position. By default this is false, not saving the text. Set to true 3028 * if the text in the text view is not being saved somewhere else in 3029 * persistent storage (such as in a content provider) so that if the 3030 * view is later thawed the user will not lose their data. 3031 * 3032 * @param freezesText Controls whether a frozen icicle should include the 3033 * entire text data: true to include it, false to not. 3034 * 3035 * @attr ref android.R.styleable#TextView_freezesText 3036 */ 3037 @android.view.RemotableViewMethod 3038 public void setFreezesText(boolean freezesText) { 3039 mFreezesText = freezesText; 3040 } 3041 3042 /** 3043 * Return whether this text view is including its entire text contents 3044 * in frozen icicles. 3045 * 3046 * @return Returns true if text is included, false if it isn't. 3047 * 3048 * @see #setFreezesText 3049 */ 3050 public boolean getFreezesText() { 3051 return mFreezesText; 3052 } 3053 3054 /////////////////////////////////////////////////////////////////////////// 3055 3056 /** 3057 * Sets the Factory used to create new Editables. 3058 */ 3059 public final void setEditableFactory(Editable.Factory factory) { 3060 mEditableFactory = factory; 3061 setText(mText); 3062 } 3063 3064 /** 3065 * Sets the Factory used to create new Spannables. 3066 */ 3067 public final void setSpannableFactory(Spannable.Factory factory) { 3068 mSpannableFactory = factory; 3069 setText(mText); 3070 } 3071 3072 /** 3073 * Sets the string value of the TextView. TextView <em>does not</em> accept 3074 * HTML-like formatting, which you can do with text strings in XML resource files. 3075 * To style your strings, attach android.text.style.* objects to a 3076 * {@link android.text.SpannableString SpannableString}, or see the 3077 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 3078 * Available Resource Types</a> documentation for an example of setting 3079 * formatted text in the XML resource file. 3080 * 3081 * @attr ref android.R.styleable#TextView_text 3082 */ 3083 @android.view.RemotableViewMethod 3084 public final void setText(CharSequence text) { 3085 setText(text, mBufferType); 3086 } 3087 3088 /** 3089 * Like {@link #setText(CharSequence)}, 3090 * except that the cursor position (if any) is retained in the new text. 3091 * 3092 * @param text The new text to place in the text view. 3093 * 3094 * @see #setText(CharSequence) 3095 */ 3096 @android.view.RemotableViewMethod 3097 public final void setTextKeepState(CharSequence text) { 3098 setTextKeepState(text, mBufferType); 3099 } 3100 3101 /** 3102 * Sets the text that this TextView is to display (see 3103 * {@link #setText(CharSequence)}) and also sets whether it is stored 3104 * in a styleable/spannable buffer and whether it is editable. 3105 * 3106 * @attr ref android.R.styleable#TextView_text 3107 * @attr ref android.R.styleable#TextView_bufferType 3108 */ 3109 public void setText(CharSequence text, BufferType type) { 3110 setText(text, type, true, 0); 3111 3112 if (mCharWrapper != null) { 3113 mCharWrapper.mChars = null; 3114 } 3115 } 3116 3117 private void setText(CharSequence text, BufferType type, 3118 boolean notifyBefore, int oldlen) { 3119 if (text == null) { 3120 text = ""; 3121 } 3122 3123 // If suggestions are not enabled, remove the suggestion spans from the text 3124 if (!isSuggestionsEnabled()) { 3125 text = removeSuggestionSpans(text); 3126 } 3127 3128 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 3129 3130 if (text instanceof Spanned && 3131 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 3132 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 3133 setHorizontalFadingEdgeEnabled(true); 3134 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 3135 } else { 3136 setHorizontalFadingEdgeEnabled(false); 3137 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 3138 } 3139 setEllipsize(TextUtils.TruncateAt.MARQUEE); 3140 } 3141 3142 int n = mFilters.length; 3143 for (int i = 0; i < n; i++) { 3144 CharSequence out = mFilters[i].filter(text, 0, text.length(), 3145 EMPTY_SPANNED, 0, 0); 3146 if (out != null) { 3147 text = out; 3148 } 3149 } 3150 3151 if (notifyBefore) { 3152 if (mText != null) { 3153 oldlen = mText.length(); 3154 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 3155 } else { 3156 sendBeforeTextChanged("", 0, 0, text.length()); 3157 } 3158 } 3159 3160 boolean needEditableForNotification = false; 3161 boolean startSpellCheck = false; 3162 3163 if (mListeners != null && mListeners.size() != 0) { 3164 needEditableForNotification = true; 3165 } 3166 3167 if (type == BufferType.EDITABLE || mInput != null || needEditableForNotification) { 3168 Editable t = mEditableFactory.newEditable(text); 3169 text = t; 3170 setFilters(t, mFilters); 3171 InputMethodManager imm = InputMethodManager.peekInstance(); 3172 if (imm != null) imm.restartInput(this); 3173 startSpellCheck = true; 3174 } else if (type == BufferType.SPANNABLE || mMovement != null) { 3175 text = mSpannableFactory.newSpannable(text); 3176 } else if (!(text instanceof CharWrapper)) { 3177 text = TextUtils.stringOrSpannedString(text); 3178 } 3179 3180 if (mAutoLinkMask != 0) { 3181 Spannable s2; 3182 3183 if (type == BufferType.EDITABLE || text instanceof Spannable) { 3184 s2 = (Spannable) text; 3185 } else { 3186 s2 = mSpannableFactory.newSpannable(text); 3187 } 3188 3189 if (Linkify.addLinks(s2, mAutoLinkMask)) { 3190 text = s2; 3191 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 3192 3193 /* 3194 * We must go ahead and set the text before changing the 3195 * movement method, because setMovementMethod() may call 3196 * setText() again to try to upgrade the buffer type. 3197 */ 3198 mText = text; 3199 3200 // Do not change the movement method for text that support text selection as it 3201 // would prevent an arbitrary cursor displacement. 3202 if (mLinksClickable && !textCanBeSelected()) { 3203 setMovementMethod(LinkMovementMethod.getInstance()); 3204 } 3205 } 3206 } 3207 3208 mBufferType = type; 3209 mText = text; 3210 3211 if (mTransformation == null) { 3212 mTransformed = text; 3213 } else { 3214 mTransformed = mTransformation.getTransformation(text, this); 3215 } 3216 3217 final int textLength = text.length(); 3218 3219 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 3220 Spannable sp = (Spannable) text; 3221 3222 // Remove any ChangeWatchers that might have come 3223 // from other TextViews. 3224 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 3225 final int count = watchers.length; 3226 for (int i = 0; i < count; i++) 3227 sp.removeSpan(watchers[i]); 3228 3229 if (mChangeWatcher == null) 3230 mChangeWatcher = new ChangeWatcher(); 3231 3232 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 3233 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 3234 3235 if (mInput != null) { 3236 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3237 } 3238 3239 if (mTransformation != null) { 3240 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3241 } 3242 3243 if (mMovement != null) { 3244 mMovement.initialize(this, (Spannable) text); 3245 3246 /* 3247 * Initializing the movement method will have set the 3248 * selection, so reset mSelectionMoved to keep that from 3249 * interfering with the normal on-focus selection-setting. 3250 */ 3251 mSelectionMoved = false; 3252 } 3253 } 3254 3255 if (mLayout != null) { 3256 checkForRelayout(); 3257 } 3258 3259 sendOnTextChanged(text, 0, oldlen, textLength); 3260 onTextChanged(text, 0, oldlen, textLength); 3261 3262 if (startSpellCheck && mSpellChecker != null) { 3263 // This view has to have been previously attached for mSpellChecker to exist 3264 updateSpellCheckSpans(0, textLength); 3265 } 3266 3267 if (needEditableForNotification) { 3268 sendAfterTextChanged((Editable) text); 3269 } 3270 3271 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 3272 prepareCursorControllers(); 3273 } 3274 3275 /** 3276 * Sets the TextView to display the specified slice of the specified 3277 * char array. You must promise that you will not change the contents 3278 * of the array except for right before another call to setText(), 3279 * since the TextView has no way to know that the text 3280 * has changed and that it needs to invalidate and re-layout. 3281 */ 3282 public final void setText(char[] text, int start, int len) { 3283 int oldlen = 0; 3284 3285 if (start < 0 || len < 0 || start + len > text.length) { 3286 throw new IndexOutOfBoundsException(start + ", " + len); 3287 } 3288 3289 /* 3290 * We must do the before-notification here ourselves because if 3291 * the old text is a CharWrapper we destroy it before calling 3292 * into the normal path. 3293 */ 3294 if (mText != null) { 3295 oldlen = mText.length(); 3296 sendBeforeTextChanged(mText, 0, oldlen, len); 3297 } else { 3298 sendBeforeTextChanged("", 0, 0, len); 3299 } 3300 3301 if (mCharWrapper == null) { 3302 mCharWrapper = new CharWrapper(text, start, len); 3303 } else { 3304 mCharWrapper.set(text, start, len); 3305 } 3306 3307 setText(mCharWrapper, mBufferType, false, oldlen); 3308 } 3309 3310 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 3311 private char[] mChars; 3312 private int mStart, mLength; 3313 3314 public CharWrapper(char[] chars, int start, int len) { 3315 mChars = chars; 3316 mStart = start; 3317 mLength = len; 3318 } 3319 3320 /* package */ void set(char[] chars, int start, int len) { 3321 mChars = chars; 3322 mStart = start; 3323 mLength = len; 3324 } 3325 3326 public int length() { 3327 return mLength; 3328 } 3329 3330 public char charAt(int off) { 3331 return mChars[off + mStart]; 3332 } 3333 3334 @Override 3335 public String toString() { 3336 return new String(mChars, mStart, mLength); 3337 } 3338 3339 public CharSequence subSequence(int start, int end) { 3340 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3341 throw new IndexOutOfBoundsException(start + ", " + end); 3342 } 3343 3344 return new String(mChars, start + mStart, end - start); 3345 } 3346 3347 public void getChars(int start, int end, char[] buf, int off) { 3348 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3349 throw new IndexOutOfBoundsException(start + ", " + end); 3350 } 3351 3352 System.arraycopy(mChars, start + mStart, buf, off, end - start); 3353 } 3354 3355 public void drawText(Canvas c, int start, int end, 3356 float x, float y, Paint p) { 3357 c.drawText(mChars, start + mStart, end - start, x, y, p); 3358 } 3359 3360 public void drawTextRun(Canvas c, int start, int end, 3361 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 3362 int count = end - start; 3363 int contextCount = contextEnd - contextStart; 3364 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 3365 contextCount, x, y, flags, p); 3366 } 3367 3368 public float measureText(int start, int end, Paint p) { 3369 return p.measureText(mChars, start + mStart, end - start); 3370 } 3371 3372 public int getTextWidths(int start, int end, float[] widths, Paint p) { 3373 return p.getTextWidths(mChars, start + mStart, end - start, widths); 3374 } 3375 3376 public float getTextRunAdvances(int start, int end, int contextStart, 3377 int contextEnd, int flags, float[] advances, int advancesIndex, 3378 Paint p) { 3379 int count = end - start; 3380 int contextCount = contextEnd - contextStart; 3381 return p.getTextRunAdvances(mChars, start + mStart, count, 3382 contextStart + mStart, contextCount, flags, advances, 3383 advancesIndex); 3384 } 3385 3386 public float getTextRunAdvances(int start, int end, int contextStart, 3387 int contextEnd, int flags, float[] advances, int advancesIndex, 3388 Paint p, int reserved) { 3389 int count = end - start; 3390 int contextCount = contextEnd - contextStart; 3391 return p.getTextRunAdvances(mChars, start + mStart, count, 3392 contextStart + mStart, contextCount, flags, advances, 3393 advancesIndex, reserved); 3394 } 3395 3396 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 3397 int offset, int cursorOpt, Paint p) { 3398 int contextCount = contextEnd - contextStart; 3399 return p.getTextRunCursor(mChars, contextStart + mStart, 3400 contextCount, flags, offset + mStart, cursorOpt); 3401 } 3402 } 3403 3404 /** 3405 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 3406 * except that the cursor position (if any) is retained in the new text. 3407 * 3408 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3409 */ 3410 public final void setTextKeepState(CharSequence text, BufferType type) { 3411 int start = getSelectionStart(); 3412 int end = getSelectionEnd(); 3413 int len = text.length(); 3414 3415 setText(text, type); 3416 3417 if (start >= 0 || end >= 0) { 3418 if (mText instanceof Spannable) { 3419 Selection.setSelection((Spannable) mText, 3420 Math.max(0, Math.min(start, len)), 3421 Math.max(0, Math.min(end, len))); 3422 } 3423 } 3424 } 3425 3426 @android.view.RemotableViewMethod 3427 public final void setText(int resid) { 3428 setText(getContext().getResources().getText(resid)); 3429 } 3430 3431 public final void setText(int resid, BufferType type) { 3432 setText(getContext().getResources().getText(resid), type); 3433 } 3434 3435 /** 3436 * Sets the text to be displayed when the text of the TextView is empty. 3437 * Null means to use the normal empty text. The hint does not currently 3438 * participate in determining the size of the view. 3439 * 3440 * @attr ref android.R.styleable#TextView_hint 3441 */ 3442 @android.view.RemotableViewMethod 3443 public final void setHint(CharSequence hint) { 3444 mHint = TextUtils.stringOrSpannedString(hint); 3445 3446 if (mLayout != null) { 3447 checkForRelayout(); 3448 } 3449 3450 if (mText.length() == 0) { 3451 invalidate(); 3452 } 3453 } 3454 3455 /** 3456 * Sets the text to be displayed when the text of the TextView is empty, 3457 * from a resource. 3458 * 3459 * @attr ref android.R.styleable#TextView_hint 3460 */ 3461 @android.view.RemotableViewMethod 3462 public final void setHint(int resid) { 3463 setHint(getContext().getResources().getText(resid)); 3464 } 3465 3466 /** 3467 * Returns the hint that is displayed when the text of the TextView 3468 * is empty. 3469 * 3470 * @attr ref android.R.styleable#TextView_hint 3471 */ 3472 @ViewDebug.CapturedViewProperty 3473 public CharSequence getHint() { 3474 return mHint; 3475 } 3476 3477 private static boolean isMultilineInputType(int type) { 3478 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3479 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3480 } 3481 3482 /** 3483 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3484 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3485 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3486 * then a soft keyboard will not be displayed for this text view. 3487 * 3488 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3489 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3490 * type. 3491 * 3492 * @see #getInputType() 3493 * @see #setRawInputType(int) 3494 * @see android.text.InputType 3495 * @attr ref android.R.styleable#TextView_inputType 3496 */ 3497 public void setInputType(int type) { 3498 final boolean wasPassword = isPasswordInputType(mInputType); 3499 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3500 setInputType(type, false); 3501 final boolean isPassword = isPasswordInputType(type); 3502 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3503 boolean forceUpdate = false; 3504 if (isPassword) { 3505 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3506 setTypefaceByIndex(MONOSPACE, 0); 3507 } else if (isVisiblePassword) { 3508 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3509 forceUpdate = true; 3510 } 3511 setTypefaceByIndex(MONOSPACE, 0); 3512 } else if (wasPassword || wasVisiblePassword) { 3513 // not in password mode, clean up typeface and transformation 3514 setTypefaceByIndex(-1, -1); 3515 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3516 forceUpdate = true; 3517 } 3518 } 3519 3520 boolean singleLine = !isMultilineInputType(type); 3521 3522 // We need to update the single line mode if it has changed or we 3523 // were previously in password mode. 3524 if (mSingleLine != singleLine || forceUpdate) { 3525 // Change single line mode, but only change the transformation if 3526 // we are not in password mode. 3527 applySingleLine(singleLine, !isPassword, true); 3528 } 3529 3530 if (!isSuggestionsEnabled()) { 3531 mText = removeSuggestionSpans(mText); 3532 } 3533 3534 InputMethodManager imm = InputMethodManager.peekInstance(); 3535 if (imm != null) imm.restartInput(this); 3536 } 3537 3538 /** 3539 * It would be better to rely on the input type for everything. A password inputType should have 3540 * a password transformation. We should hence use isPasswordInputType instead of this method. 3541 * 3542 * We should: 3543 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3544 * would install the correct transformation). 3545 * - Refuse the installation of a non-password transformation in setTransformation if the input 3546 * type is password. 3547 * 3548 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3549 * is useful since it matches what the user can see (obfuscated text or not). 3550 * 3551 * @return true if the current transformation method is of the password type. 3552 */ 3553 private boolean hasPasswordTransformationMethod() { 3554 return mTransformation instanceof PasswordTransformationMethod; 3555 } 3556 3557 private static boolean isPasswordInputType(int inputType) { 3558 final int variation = 3559 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3560 return variation 3561 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3562 || variation 3563 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3564 || variation 3565 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3566 } 3567 3568 private static boolean isVisiblePasswordInputType(int inputType) { 3569 final int variation = 3570 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3571 return variation 3572 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3573 } 3574 3575 /** 3576 * Directly change the content type integer of the text view, without 3577 * modifying any other state. 3578 * @see #setInputType(int) 3579 * @see android.text.InputType 3580 * @attr ref android.R.styleable#TextView_inputType 3581 */ 3582 public void setRawInputType(int type) { 3583 mInputType = type; 3584 } 3585 3586 private void setInputType(int type, boolean direct) { 3587 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3588 KeyListener input; 3589 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3590 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3591 TextKeyListener.Capitalize cap; 3592 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3593 cap = TextKeyListener.Capitalize.CHARACTERS; 3594 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3595 cap = TextKeyListener.Capitalize.WORDS; 3596 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3597 cap = TextKeyListener.Capitalize.SENTENCES; 3598 } else { 3599 cap = TextKeyListener.Capitalize.NONE; 3600 } 3601 input = TextKeyListener.getInstance(autotext, cap); 3602 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3603 input = DigitsKeyListener.getInstance( 3604 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3605 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3606 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3607 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3608 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3609 input = DateKeyListener.getInstance(); 3610 break; 3611 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3612 input = TimeKeyListener.getInstance(); 3613 break; 3614 default: 3615 input = DateTimeKeyListener.getInstance(); 3616 break; 3617 } 3618 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3619 input = DialerKeyListener.getInstance(); 3620 } else { 3621 input = TextKeyListener.getInstance(); 3622 } 3623 setRawInputType(type); 3624 if (direct) mInput = input; 3625 else { 3626 setKeyListenerOnly(input); 3627 } 3628 } 3629 3630 /** 3631 * Get the type of the content. 3632 * 3633 * @see #setInputType(int) 3634 * @see android.text.InputType 3635 */ 3636 public int getInputType() { 3637 return mInputType; 3638 } 3639 3640 /** 3641 * Change the editor type integer associated with the text view, which 3642 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3643 * has focus. 3644 * @see #getImeOptions 3645 * @see android.view.inputmethod.EditorInfo 3646 * @attr ref android.R.styleable#TextView_imeOptions 3647 */ 3648 public void setImeOptions(int imeOptions) { 3649 if (mInputContentType == null) { 3650 mInputContentType = new InputContentType(); 3651 } 3652 mInputContentType.imeOptions = imeOptions; 3653 } 3654 3655 /** 3656 * Get the type of the IME editor. 3657 * 3658 * @see #setImeOptions(int) 3659 * @see android.view.inputmethod.EditorInfo 3660 */ 3661 public int getImeOptions() { 3662 return mInputContentType != null 3663 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3664 } 3665 3666 /** 3667 * Change the custom IME action associated with the text view, which 3668 * will be reported to an IME with {@link EditorInfo#actionLabel} 3669 * and {@link EditorInfo#actionId} when it has focus. 3670 * @see #getImeActionLabel 3671 * @see #getImeActionId 3672 * @see android.view.inputmethod.EditorInfo 3673 * @attr ref android.R.styleable#TextView_imeActionLabel 3674 * @attr ref android.R.styleable#TextView_imeActionId 3675 */ 3676 public void setImeActionLabel(CharSequence label, int actionId) { 3677 if (mInputContentType == null) { 3678 mInputContentType = new InputContentType(); 3679 } 3680 mInputContentType.imeActionLabel = label; 3681 mInputContentType.imeActionId = actionId; 3682 } 3683 3684 /** 3685 * Get the IME action label previous set with {@link #setImeActionLabel}. 3686 * 3687 * @see #setImeActionLabel 3688 * @see android.view.inputmethod.EditorInfo 3689 */ 3690 public CharSequence getImeActionLabel() { 3691 return mInputContentType != null 3692 ? mInputContentType.imeActionLabel : null; 3693 } 3694 3695 /** 3696 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3697 * 3698 * @see #setImeActionLabel 3699 * @see android.view.inputmethod.EditorInfo 3700 */ 3701 public int getImeActionId() { 3702 return mInputContentType != null 3703 ? mInputContentType.imeActionId : 0; 3704 } 3705 3706 /** 3707 * Set a special listener to be called when an action is performed 3708 * on the text view. This will be called when the enter key is pressed, 3709 * or when an action supplied to the IME is selected by the user. Setting 3710 * this means that the normal hard key event will not insert a newline 3711 * into the text view, even if it is multi-line; holding down the ALT 3712 * modifier will, however, allow the user to insert a newline character. 3713 */ 3714 public void setOnEditorActionListener(OnEditorActionListener l) { 3715 if (mInputContentType == null) { 3716 mInputContentType = new InputContentType(); 3717 } 3718 mInputContentType.onEditorActionListener = l; 3719 } 3720 3721 /** 3722 * Called when an attached input method calls 3723 * {@link InputConnection#performEditorAction(int) 3724 * InputConnection.performEditorAction()} 3725 * for this text view. The default implementation will call your action 3726 * listener supplied to {@link #setOnEditorActionListener}, or perform 3727 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3728 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3729 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3730 * EditorInfo.IME_ACTION_DONE}. 3731 * 3732 * <p>For backwards compatibility, if no IME options have been set and the 3733 * text view would not normally advance focus on enter, then 3734 * the NEXT and DONE actions received here will be turned into an enter 3735 * key down/up pair to go through the normal key handling. 3736 * 3737 * @param actionCode The code of the action being performed. 3738 * 3739 * @see #setOnEditorActionListener 3740 */ 3741 public void onEditorAction(int actionCode) { 3742 final InputContentType ict = mInputContentType; 3743 if (ict != null) { 3744 if (ict.onEditorActionListener != null) { 3745 if (ict.onEditorActionListener.onEditorAction(this, 3746 actionCode, null)) { 3747 return; 3748 } 3749 } 3750 3751 // This is the handling for some default action. 3752 // Note that for backwards compatibility we don't do this 3753 // default handling if explicit ime options have not been given, 3754 // instead turning this into the normal enter key codes that an 3755 // app may be expecting. 3756 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3757 View v = focusSearch(FOCUS_FORWARD); 3758 if (v != null) { 3759 if (!v.requestFocus(FOCUS_FORWARD)) { 3760 throw new IllegalStateException("focus search returned a view " + 3761 "that wasn't able to take focus!"); 3762 } 3763 } 3764 return; 3765 3766 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3767 View v = focusSearch(FOCUS_BACKWARD); 3768 if (v != null) { 3769 if (!v.requestFocus(FOCUS_BACKWARD)) { 3770 throw new IllegalStateException("focus search returned a view " + 3771 "that wasn't able to take focus!"); 3772 } 3773 } 3774 return; 3775 3776 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3777 InputMethodManager imm = InputMethodManager.peekInstance(); 3778 if (imm != null && imm.isActive(this)) { 3779 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3780 } 3781 clearFocus(); 3782 return; 3783 } 3784 } 3785 3786 Handler h = getHandler(); 3787 if (h != null) { 3788 long eventTime = SystemClock.uptimeMillis(); 3789 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3790 new KeyEvent(eventTime, eventTime, 3791 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3792 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3793 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3794 | KeyEvent.FLAG_EDITOR_ACTION))); 3795 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3796 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3797 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3798 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3799 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3800 | KeyEvent.FLAG_EDITOR_ACTION))); 3801 } 3802 } 3803 3804 /** 3805 * Set the private content type of the text, which is the 3806 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3807 * field that will be filled in when creating an input connection. 3808 * 3809 * @see #getPrivateImeOptions() 3810 * @see EditorInfo#privateImeOptions 3811 * @attr ref android.R.styleable#TextView_privateImeOptions 3812 */ 3813 public void setPrivateImeOptions(String type) { 3814 if (mInputContentType == null) mInputContentType = new InputContentType(); 3815 mInputContentType.privateImeOptions = type; 3816 } 3817 3818 /** 3819 * Get the private type of the content. 3820 * 3821 * @see #setPrivateImeOptions(String) 3822 * @see EditorInfo#privateImeOptions 3823 */ 3824 public String getPrivateImeOptions() { 3825 return mInputContentType != null 3826 ? mInputContentType.privateImeOptions : null; 3827 } 3828 3829 /** 3830 * Set the extra input data of the text, which is the 3831 * {@link EditorInfo#extras TextBoxAttribute.extras} 3832 * Bundle that will be filled in when creating an input connection. The 3833 * given integer is the resource ID of an XML resource holding an 3834 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3835 * 3836 * @see #getInputExtras(boolean) 3837 * @see EditorInfo#extras 3838 * @attr ref android.R.styleable#TextView_editorExtras 3839 */ 3840 public void setInputExtras(int xmlResId) 3841 throws XmlPullParserException, IOException { 3842 XmlResourceParser parser = getResources().getXml(xmlResId); 3843 if (mInputContentType == null) mInputContentType = new InputContentType(); 3844 mInputContentType.extras = new Bundle(); 3845 getResources().parseBundleExtras(parser, mInputContentType.extras); 3846 } 3847 3848 /** 3849 * Retrieve the input extras currently associated with the text view, which 3850 * can be viewed as well as modified. 3851 * 3852 * @param create If true, the extras will be created if they don't already 3853 * exist. Otherwise, null will be returned if none have been created. 3854 * @see #setInputExtras(int) 3855 * @see EditorInfo#extras 3856 * @attr ref android.R.styleable#TextView_editorExtras 3857 */ 3858 public Bundle getInputExtras(boolean create) { 3859 if (mInputContentType == null) { 3860 if (!create) return null; 3861 mInputContentType = new InputContentType(); 3862 } 3863 if (mInputContentType.extras == null) { 3864 if (!create) return null; 3865 mInputContentType.extras = new Bundle(); 3866 } 3867 return mInputContentType.extras; 3868 } 3869 3870 /** 3871 * Returns the error message that was set to be displayed with 3872 * {@link #setError}, or <code>null</code> if no error was set 3873 * or if it the error was cleared by the widget after user input. 3874 */ 3875 public CharSequence getError() { 3876 return mError; 3877 } 3878 3879 /** 3880 * Sets the right-hand compound drawable of the TextView to the "error" 3881 * icon and sets an error message that will be displayed in a popup when 3882 * the TextView has focus. The icon and error message will be reset to 3883 * null when any key events cause changes to the TextView's text. If the 3884 * <code>error</code> is <code>null</code>, the error message and icon 3885 * will be cleared. 3886 */ 3887 @android.view.RemotableViewMethod 3888 public void setError(CharSequence error) { 3889 if (error == null) { 3890 setError(null, null); 3891 } else { 3892 Drawable dr = getContext().getResources(). 3893 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3894 3895 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3896 setError(error, dr); 3897 } 3898 } 3899 3900 /** 3901 * Sets the right-hand compound drawable of the TextView to the specified 3902 * icon and sets an error message that will be displayed in a popup when 3903 * the TextView has focus. The icon and error message will be reset to 3904 * null when any key events cause changes to the TextView's text. The 3905 * drawable must already have had {@link Drawable#setBounds} set on it. 3906 * If the <code>error</code> is <code>null</code>, the error message will 3907 * be cleared (and you should provide a <code>null</code> icon as well). 3908 */ 3909 public void setError(CharSequence error, Drawable icon) { 3910 error = TextUtils.stringOrSpannedString(error); 3911 3912 mError = error; 3913 mErrorWasChanged = true; 3914 final Drawables dr = mDrawables; 3915 if (dr != null) { 3916 switch (getResolvedLayoutDirection()) { 3917 default: 3918 case LAYOUT_DIRECTION_LTR: 3919 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, 3920 dr.mDrawableBottom); 3921 break; 3922 case LAYOUT_DIRECTION_RTL: 3923 setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight, 3924 dr.mDrawableBottom); 3925 break; 3926 } 3927 } else { 3928 setCompoundDrawables(null, null, icon, null); 3929 } 3930 3931 if (error == null) { 3932 if (mPopup != null) { 3933 if (mPopup.isShowing()) { 3934 mPopup.dismiss(); 3935 } 3936 3937 mPopup = null; 3938 } 3939 } else { 3940 if (isFocused()) { 3941 showError(); 3942 } 3943 } 3944 } 3945 3946 private void showError() { 3947 if (getWindowToken() == null) { 3948 mShowErrorAfterAttach = true; 3949 return; 3950 } 3951 3952 if (mPopup == null) { 3953 LayoutInflater inflater = LayoutInflater.from(getContext()); 3954 final TextView err = (TextView) inflater.inflate( 3955 com.android.internal.R.layout.textview_hint, null); 3956 3957 final float scale = getResources().getDisplayMetrics().density; 3958 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 3959 mPopup.setFocusable(false); 3960 // The user is entering text, so the input method is needed. We 3961 // don't want the popup to be displayed on top of it. 3962 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3963 } 3964 3965 TextView tv = (TextView) mPopup.getContentView(); 3966 chooseSize(mPopup, mError, tv); 3967 tv.setText(mError); 3968 3969 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3970 mPopup.fixDirection(mPopup.isAboveAnchor()); 3971 } 3972 3973 private static class ErrorPopup extends PopupWindow { 3974 private boolean mAbove = false; 3975 private final TextView mView; 3976 private int mPopupInlineErrorBackgroundId = 0; 3977 private int mPopupInlineErrorAboveBackgroundId = 0; 3978 3979 ErrorPopup(TextView v, int width, int height) { 3980 super(v, width, height); 3981 mView = v; 3982 // Make sure the TextView has a background set as it will be used the first time it is 3983 // shown and positionned. Initialized with below background, which should have 3984 // dimensions identical to the above version for this to work (and is more likely). 3985 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3986 com.android.internal.R.styleable.Theme_errorMessageBackground); 3987 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 3988 } 3989 3990 void fixDirection(boolean above) { 3991 mAbove = above; 3992 3993 if (above) { 3994 mPopupInlineErrorAboveBackgroundId = 3995 getResourceId(mPopupInlineErrorAboveBackgroundId, 3996 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 3997 } else { 3998 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3999 com.android.internal.R.styleable.Theme_errorMessageBackground); 4000 } 4001 4002 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 4003 mPopupInlineErrorBackgroundId); 4004 } 4005 4006 private int getResourceId(int currentId, int index) { 4007 if (currentId == 0) { 4008 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 4009 R.styleable.Theme); 4010 currentId = styledAttributes.getResourceId(index, 0); 4011 styledAttributes.recycle(); 4012 } 4013 return currentId; 4014 } 4015 4016 @Override 4017 public void update(int x, int y, int w, int h, boolean force) { 4018 super.update(x, y, w, h, force); 4019 4020 boolean above = isAboveAnchor(); 4021 if (above != mAbove) { 4022 fixDirection(above); 4023 } 4024 } 4025 } 4026 4027 /** 4028 * Returns the Y offset to make the pointy top of the error point 4029 * at the middle of the error icon. 4030 */ 4031 private int getErrorX() { 4032 /* 4033 * The "25" is the distance between the point and the right edge 4034 * of the background 4035 */ 4036 final float scale = getResources().getDisplayMetrics().density; 4037 4038 final Drawables dr = mDrawables; 4039 return getWidth() - mPopup.getWidth() - getPaddingRight() - 4040 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 4041 } 4042 4043 /** 4044 * Returns the Y offset to make the pointy top of the error point 4045 * at the bottom of the error icon. 4046 */ 4047 private int getErrorY() { 4048 /* 4049 * Compound, not extended, because the icon is not clipped 4050 * if the text height is smaller. 4051 */ 4052 final int compoundPaddingTop = getCompoundPaddingTop(); 4053 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 4054 4055 final Drawables dr = mDrawables; 4056 int icontop = compoundPaddingTop + 4057 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 4058 4059 /* 4060 * The "2" is the distance between the point and the top edge 4061 * of the background. 4062 */ 4063 final float scale = getResources().getDisplayMetrics().density; 4064 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 4065 (int) (2 * scale + 0.5f); 4066 } 4067 4068 private void hideError() { 4069 if (mPopup != null) { 4070 if (mPopup.isShowing()) { 4071 mPopup.dismiss(); 4072 } 4073 } 4074 4075 mShowErrorAfterAttach = false; 4076 } 4077 4078 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 4079 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 4080 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 4081 4082 int defaultWidthInPixels = getResources().getDimensionPixelSize( 4083 com.android.internal.R.dimen.textview_error_popup_default_width); 4084 Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels, 4085 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 4086 float max = 0; 4087 for (int i = 0; i < l.getLineCount(); i++) { 4088 max = Math.max(max, l.getLineWidth(i)); 4089 } 4090 4091 /* 4092 * Now set the popup size to be big enough for the text plus the border capped 4093 * to DEFAULT_MAX_POPUP_WIDTH 4094 */ 4095 pop.setWidth(wid + (int) Math.ceil(max)); 4096 pop.setHeight(ht + l.getHeight()); 4097 } 4098 4099 4100 @Override 4101 protected boolean setFrame(int l, int t, int r, int b) { 4102 boolean result = super.setFrame(l, t, r, b); 4103 4104 if (mPopup != null) { 4105 TextView tv = (TextView) mPopup.getContentView(); 4106 chooseSize(mPopup, mError, tv); 4107 mPopup.update(this, getErrorX(), getErrorY(), 4108 mPopup.getWidth(), mPopup.getHeight()); 4109 } 4110 4111 restartMarqueeIfNeeded(); 4112 4113 return result; 4114 } 4115 4116 private void restartMarqueeIfNeeded() { 4117 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4118 mRestartMarquee = false; 4119 startMarquee(); 4120 } 4121 } 4122 4123 /** 4124 * Sets the list of input filters that will be used if the buffer is 4125 * Editable. Has no effect otherwise. 4126 * 4127 * @attr ref android.R.styleable#TextView_maxLength 4128 */ 4129 public void setFilters(InputFilter[] filters) { 4130 if (filters == null) { 4131 throw new IllegalArgumentException(); 4132 } 4133 4134 mFilters = filters; 4135 4136 if (mText instanceof Editable) { 4137 setFilters((Editable) mText, filters); 4138 } 4139 } 4140 4141 /** 4142 * Sets the list of input filters on the specified Editable, 4143 * and includes mInput in the list if it is an InputFilter. 4144 */ 4145 private void setFilters(Editable e, InputFilter[] filters) { 4146 if (mInput instanceof InputFilter) { 4147 InputFilter[] nf = new InputFilter[filters.length + 1]; 4148 4149 System.arraycopy(filters, 0, nf, 0, filters.length); 4150 nf[filters.length] = (InputFilter) mInput; 4151 4152 e.setFilters(nf); 4153 } else { 4154 e.setFilters(filters); 4155 } 4156 } 4157 4158 /** 4159 * Returns the current list of input filters. 4160 */ 4161 public InputFilter[] getFilters() { 4162 return mFilters; 4163 } 4164 4165 ///////////////////////////////////////////////////////////////////////// 4166 4167 private int getVerticalOffset(boolean forceNormal) { 4168 int voffset = 0; 4169 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4170 4171 Layout l = mLayout; 4172 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4173 l = mHintLayout; 4174 } 4175 4176 if (gravity != Gravity.TOP) { 4177 int boxht; 4178 4179 if (l == mHintLayout) { 4180 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4181 getCompoundPaddingBottom(); 4182 } else { 4183 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4184 getExtendedPaddingBottom(); 4185 } 4186 int textht = l.getHeight(); 4187 4188 if (textht < boxht) { 4189 if (gravity == Gravity.BOTTOM) 4190 voffset = boxht - textht; 4191 else // (gravity == Gravity.CENTER_VERTICAL) 4192 voffset = (boxht - textht) >> 1; 4193 } 4194 } 4195 return voffset; 4196 } 4197 4198 private int getBottomVerticalOffset(boolean forceNormal) { 4199 int voffset = 0; 4200 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4201 4202 Layout l = mLayout; 4203 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4204 l = mHintLayout; 4205 } 4206 4207 if (gravity != Gravity.BOTTOM) { 4208 int boxht; 4209 4210 if (l == mHintLayout) { 4211 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4212 getCompoundPaddingBottom(); 4213 } else { 4214 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4215 getExtendedPaddingBottom(); 4216 } 4217 int textht = l.getHeight(); 4218 4219 if (textht < boxht) { 4220 if (gravity == Gravity.TOP) 4221 voffset = boxht - textht; 4222 else // (gravity == Gravity.CENTER_VERTICAL) 4223 voffset = (boxht - textht) >> 1; 4224 } 4225 } 4226 return voffset; 4227 } 4228 4229 private void invalidateCursorPath() { 4230 if (mHighlightPathBogus) { 4231 invalidateCursor(); 4232 } else { 4233 final int horizontalPadding = getCompoundPaddingLeft(); 4234 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4235 4236 if (mCursorCount == 0) { 4237 synchronized (sTempRect) { 4238 /* 4239 * The reason for this concern about the thickness of the 4240 * cursor and doing the floor/ceil on the coordinates is that 4241 * some EditTexts (notably textfields in the Browser) have 4242 * anti-aliased text where not all the characters are 4243 * necessarily at integer-multiple locations. This should 4244 * make sure the entire cursor gets invalidated instead of 4245 * sometimes missing half a pixel. 4246 */ 4247 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 4248 if (thick < 1.0f) { 4249 thick = 1.0f; 4250 } 4251 4252 thick /= 2.0f; 4253 4254 mHighlightPath.computeBounds(sTempRect, false); 4255 4256 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 4257 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 4258 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 4259 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 4260 } 4261 } else { 4262 for (int i = 0; i < mCursorCount; i++) { 4263 Rect bounds = mCursorDrawable[i].getBounds(); 4264 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 4265 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 4266 } 4267 } 4268 } 4269 } 4270 4271 private void invalidateCursor() { 4272 int where = getSelectionEnd(); 4273 4274 invalidateCursor(where, where, where); 4275 } 4276 4277 private void invalidateCursor(int a, int b, int c) { 4278 if (mLayout == null) { 4279 invalidate(); 4280 } else { 4281 if (a >= 0 || b >= 0 || c >= 0) { 4282 int first = Math.min(Math.min(a, b), c); 4283 int last = Math.max(Math.max(a, b), c); 4284 4285 int line = mLayout.getLineForOffset(first); 4286 int top = mLayout.getLineTop(line); 4287 4288 // This is ridiculous, but the descent from the line above 4289 // can hang down into the line we really want to redraw, 4290 // so we have to invalidate part of the line above to make 4291 // sure everything that needs to be redrawn really is. 4292 // (But not the whole line above, because that would cause 4293 // the same problem with the descenders on the line above it!) 4294 if (line > 0) { 4295 top -= mLayout.getLineDescent(line - 1); 4296 } 4297 4298 int line2; 4299 4300 if (first == last) 4301 line2 = line; 4302 else 4303 line2 = mLayout.getLineForOffset(last); 4304 4305 int bottom = mLayout.getLineTop(line2 + 1); 4306 4307 final int horizontalPadding = getCompoundPaddingLeft(); 4308 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4309 4310 // If used, the cursor drawables can have an arbitrary dimension that can go beyond 4311 // the invalidated lines specified above. 4312 for (int i = 0; i < mCursorCount; i++) { 4313 Rect bounds = mCursorDrawable[i].getBounds(); 4314 top = Math.min(top, bounds.top); 4315 bottom = Math.max(bottom, bounds.bottom); 4316 // Horizontal bounds are already full width, no need to update 4317 } 4318 4319 invalidate(horizontalPadding + mScrollX, top + verticalPadding, 4320 horizontalPadding + mScrollX + getWidth() - 4321 getCompoundPaddingLeft() - getCompoundPaddingRight(), 4322 bottom + verticalPadding); 4323 } 4324 } 4325 } 4326 4327 private void registerForPreDraw() { 4328 final ViewTreeObserver observer = getViewTreeObserver(); 4329 4330 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 4331 observer.addOnPreDrawListener(this); 4332 mPreDrawState = PREDRAW_PENDING; 4333 } else if (mPreDrawState == PREDRAW_DONE) { 4334 mPreDrawState = PREDRAW_PENDING; 4335 } 4336 4337 // else state is PREDRAW_PENDING, so keep waiting. 4338 } 4339 4340 /** 4341 * {@inheritDoc} 4342 */ 4343 public boolean onPreDraw() { 4344 if (mPreDrawState != PREDRAW_PENDING) { 4345 return true; 4346 } 4347 4348 if (mLayout == null) { 4349 assumeLayout(); 4350 } 4351 4352 boolean changed = false; 4353 4354 if (mMovement != null) { 4355 /* This code also provides auto-scrolling when a cursor is moved using a 4356 * CursorController (insertion point or selection limits). 4357 * For selection, ensure start or end is visible depending on controller's state. 4358 */ 4359 int curs = getSelectionEnd(); 4360 // Do not create the controller if it is not already created. 4361 if (mSelectionModifierCursorController != null && 4362 mSelectionModifierCursorController.isSelectionStartDragged()) { 4363 curs = getSelectionStart(); 4364 } 4365 4366 /* 4367 * TODO: This should really only keep the end in view if 4368 * it already was before the text changed. I'm not sure 4369 * of a good way to tell from here if it was. 4370 */ 4371 if (curs < 0 && 4372 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 4373 curs = mText.length(); 4374 } 4375 4376 if (curs >= 0) { 4377 changed = bringPointIntoView(curs); 4378 } 4379 } else { 4380 changed = bringTextIntoView(); 4381 } 4382 4383 // This has to be checked here since: 4384 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 4385 // a screen rotation) since layout is not yet initialized at that point. 4386 if (mCreatedWithASelection) { 4387 startSelectionActionMode(); 4388 mCreatedWithASelection = false; 4389 } 4390 4391 // Phone specific code (there is no ExtractEditText on tablets). 4392 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 4393 // not be set. Do the test here instead. 4394 if (this instanceof ExtractEditText && hasSelection()) { 4395 startSelectionActionMode(); 4396 } 4397 4398 mPreDrawState = PREDRAW_DONE; 4399 return !changed; 4400 } 4401 4402 @Override 4403 protected void onAttachedToWindow() { 4404 super.onAttachedToWindow(); 4405 4406 mTemporaryDetach = false; 4407 4408 if (mShowErrorAfterAttach) { 4409 showError(); 4410 mShowErrorAfterAttach = false; 4411 } 4412 4413 final ViewTreeObserver observer = getViewTreeObserver(); 4414 // No need to create the controller. 4415 // The get method will add the listener on controller creation. 4416 if (mInsertionPointCursorController != null) { 4417 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 4418 } 4419 if (mSelectionModifierCursorController != null) { 4420 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 4421 } 4422 4423 // Resolve drawables as the layout direction has been resolved 4424 resolveDrawables(); 4425 4426 updateSpellCheckSpans(0, mText.length()); 4427 } 4428 4429 @Override 4430 protected void onDetachedFromWindow() { 4431 super.onDetachedFromWindow(); 4432 4433 final ViewTreeObserver observer = getViewTreeObserver(); 4434 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 4435 observer.removeOnPreDrawListener(this); 4436 mPreDrawState = PREDRAW_NOT_REGISTERED; 4437 } 4438 4439 if (mError != null) { 4440 hideError(); 4441 } 4442 4443 if (mBlink != null) { 4444 mBlink.removeCallbacks(mBlink); 4445 } 4446 4447 if (mInsertionPointCursorController != null) { 4448 mInsertionPointCursorController.onDetached(); 4449 } 4450 4451 if (mSelectionModifierCursorController != null) { 4452 mSelectionModifierCursorController.onDetached(); 4453 } 4454 4455 hideControllers(); 4456 4457 resetResolvedDrawables(); 4458 4459 if (mSpellChecker != null) { 4460 mSpellChecker.closeSession(); 4461 // Forces the creation of a new SpellChecker next time this window is created. 4462 // Will handle the cases where the settings has been changed in the meantime. 4463 mSpellChecker = null; 4464 } 4465 } 4466 4467 @Override 4468 protected boolean isPaddingOffsetRequired() { 4469 return mShadowRadius != 0 || mDrawables != null; 4470 } 4471 4472 @Override 4473 protected int getLeftPaddingOffset() { 4474 return getCompoundPaddingLeft() - mPaddingLeft + 4475 (int) Math.min(0, mShadowDx - mShadowRadius); 4476 } 4477 4478 @Override 4479 protected int getTopPaddingOffset() { 4480 return (int) Math.min(0, mShadowDy - mShadowRadius); 4481 } 4482 4483 @Override 4484 protected int getBottomPaddingOffset() { 4485 return (int) Math.max(0, mShadowDy + mShadowRadius); 4486 } 4487 4488 @Override 4489 protected int getRightPaddingOffset() { 4490 return -(getCompoundPaddingRight() - mPaddingRight) + 4491 (int) Math.max(0, mShadowDx + mShadowRadius); 4492 } 4493 4494 @Override 4495 protected boolean verifyDrawable(Drawable who) { 4496 final boolean verified = super.verifyDrawable(who); 4497 if (!verified && mDrawables != null) { 4498 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4499 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom || 4500 who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd; 4501 } 4502 return verified; 4503 } 4504 4505 @Override 4506 public void jumpDrawablesToCurrentState() { 4507 super.jumpDrawablesToCurrentState(); 4508 if (mDrawables != null) { 4509 if (mDrawables.mDrawableLeft != null) { 4510 mDrawables.mDrawableLeft.jumpToCurrentState(); 4511 } 4512 if (mDrawables.mDrawableTop != null) { 4513 mDrawables.mDrawableTop.jumpToCurrentState(); 4514 } 4515 if (mDrawables.mDrawableRight != null) { 4516 mDrawables.mDrawableRight.jumpToCurrentState(); 4517 } 4518 if (mDrawables.mDrawableBottom != null) { 4519 mDrawables.mDrawableBottom.jumpToCurrentState(); 4520 } 4521 if (mDrawables.mDrawableStart != null) { 4522 mDrawables.mDrawableStart.jumpToCurrentState(); 4523 } 4524 if (mDrawables.mDrawableEnd != null) { 4525 mDrawables.mDrawableEnd.jumpToCurrentState(); 4526 } 4527 } 4528 } 4529 4530 @Override 4531 public void invalidateDrawable(Drawable drawable) { 4532 if (verifyDrawable(drawable)) { 4533 final Rect dirty = drawable.getBounds(); 4534 int scrollX = mScrollX; 4535 int scrollY = mScrollY; 4536 4537 // IMPORTANT: The coordinates below are based on the coordinates computed 4538 // for each compound drawable in onDraw(). Make sure to update each section 4539 // accordingly. 4540 final TextView.Drawables drawables = mDrawables; 4541 if (drawables != null) { 4542 if (drawable == drawables.mDrawableLeft) { 4543 final int compoundPaddingTop = getCompoundPaddingTop(); 4544 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4545 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4546 4547 scrollX += mPaddingLeft; 4548 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4549 } else if (drawable == drawables.mDrawableRight) { 4550 final int compoundPaddingTop = getCompoundPaddingTop(); 4551 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4552 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4553 4554 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4555 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4556 } else if (drawable == drawables.mDrawableTop) { 4557 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4558 final int compoundPaddingRight = getCompoundPaddingRight(); 4559 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4560 4561 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4562 scrollY += mPaddingTop; 4563 } else if (drawable == drawables.mDrawableBottom) { 4564 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4565 final int compoundPaddingRight = getCompoundPaddingRight(); 4566 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4567 4568 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4569 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4570 } 4571 } 4572 4573 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4574 dirty.right + scrollX, dirty.bottom + scrollY); 4575 } 4576 } 4577 4578 /** 4579 * @hide 4580 */ 4581 @Override 4582 public int getResolvedLayoutDirection(Drawable who) { 4583 if (who == null) return View.LAYOUT_DIRECTION_LTR; 4584 if (mDrawables != null) { 4585 final Drawables drawables = mDrawables; 4586 if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight || 4587 who == drawables.mDrawableTop || who == drawables.mDrawableBottom || 4588 who == drawables.mDrawableStart || who == drawables.mDrawableEnd) { 4589 return getResolvedLayoutDirection(); 4590 } 4591 } 4592 return super.getResolvedLayoutDirection(who); 4593 } 4594 4595 @Override 4596 protected boolean onSetAlpha(int alpha) { 4597 // Alpha is supported if and only if the drawing can be done in one pass. 4598 // TODO text with spans with a background color currently do not respect this alpha. 4599 if (getBackground() == null) { 4600 mCurrentAlpha = alpha; 4601 final Drawables dr = mDrawables; 4602 if (dr != null) { 4603 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4604 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4605 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4606 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4607 if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha); 4608 if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha); 4609 } 4610 return true; 4611 } 4612 4613 mCurrentAlpha = 255; 4614 return false; 4615 } 4616 4617 /** 4618 * When a TextView is used to display a useful piece of information to the user (such as a 4619 * contact's address), it should be made selectable, so that the user can select and copy this 4620 * content. 4621 * 4622 * Use {@link #setTextIsSelectable(boolean)} or the 4623 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4624 * selectable (text is not selectable by default). 4625 * 4626 * Note that this method simply returns the state of this flag. Although this flag has to be set 4627 * in order to select text in non-editable TextView, the content of an {@link EditText} can 4628 * always be selected, independently of the value of this flag. 4629 * 4630 * @return True if the text displayed in this TextView can be selected by the user. 4631 * 4632 * @attr ref android.R.styleable#TextView_textIsSelectable 4633 */ 4634 public boolean isTextSelectable() { 4635 return mTextIsSelectable; 4636 } 4637 4638 /** 4639 * Sets whether or not (default) the content of this view is selectable by the user. 4640 * 4641 * Note that this methods affect the {@link #setFocusable(boolean)}, 4642 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4643 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4644 * customized. 4645 * 4646 * See {@link #isTextSelectable} for details. 4647 * 4648 * @param selectable Whether or not the content of this TextView should be selectable. 4649 */ 4650 public void setTextIsSelectable(boolean selectable) { 4651 if (mTextIsSelectable == selectable) return; 4652 4653 mTextIsSelectable = selectable; 4654 4655 setFocusableInTouchMode(selectable); 4656 setFocusable(selectable); 4657 setClickable(selectable); 4658 setLongClickable(selectable); 4659 4660 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4661 4662 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4663 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4664 4665 // Called by setText above, but safer in case of future code changes 4666 prepareCursorControllers(); 4667 } 4668 4669 @Override 4670 protected int[] onCreateDrawableState(int extraSpace) { 4671 final int[] drawableState; 4672 4673 if (mSingleLine) { 4674 drawableState = super.onCreateDrawableState(extraSpace); 4675 } else { 4676 drawableState = super.onCreateDrawableState(extraSpace + 1); 4677 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4678 } 4679 4680 if (mTextIsSelectable) { 4681 // Disable pressed state, which was introduced when TextView was made clickable. 4682 // Prevents text color change. 4683 // setClickable(false) would have a similar effect, but it also disables focus changes 4684 // and long press actions, which are both needed by text selection. 4685 final int length = drawableState.length; 4686 for (int i = 0; i < length; i++) { 4687 if (drawableState[i] == R.attr.state_pressed) { 4688 final int[] nonPressedState = new int[length - 1]; 4689 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4690 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4691 return nonPressedState; 4692 } 4693 } 4694 } 4695 4696 return drawableState; 4697 } 4698 4699 @Override 4700 protected void onDraw(Canvas canvas) { 4701 if (mPreDrawState == PREDRAW_DONE) { 4702 final ViewTreeObserver observer = getViewTreeObserver(); 4703 observer.removeOnPreDrawListener(this); 4704 mPreDrawState = PREDRAW_NOT_REGISTERED; 4705 } 4706 4707 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4708 4709 restartMarqueeIfNeeded(); 4710 4711 // Draw the background for this view 4712 super.onDraw(canvas); 4713 4714 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4715 final int compoundPaddingTop = getCompoundPaddingTop(); 4716 final int compoundPaddingRight = getCompoundPaddingRight(); 4717 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4718 final int scrollX = mScrollX; 4719 final int scrollY = mScrollY; 4720 final int right = mRight; 4721 final int left = mLeft; 4722 final int bottom = mBottom; 4723 final int top = mTop; 4724 4725 final Drawables dr = mDrawables; 4726 if (dr != null) { 4727 /* 4728 * Compound, not extended, because the icon is not clipped 4729 * if the text height is smaller. 4730 */ 4731 4732 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4733 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4734 4735 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4736 // Make sure to update invalidateDrawable() when changing this code. 4737 if (dr.mDrawableLeft != null) { 4738 canvas.save(); 4739 canvas.translate(scrollX + mPaddingLeft, 4740 scrollY + compoundPaddingTop + 4741 (vspace - dr.mDrawableHeightLeft) / 2); 4742 dr.mDrawableLeft.draw(canvas); 4743 canvas.restore(); 4744 } 4745 4746 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4747 // Make sure to update invalidateDrawable() when changing this code. 4748 if (dr.mDrawableRight != null) { 4749 canvas.save(); 4750 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4751 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4752 dr.mDrawableRight.draw(canvas); 4753 canvas.restore(); 4754 } 4755 4756 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4757 // Make sure to update invalidateDrawable() when changing this code. 4758 if (dr.mDrawableTop != null) { 4759 canvas.save(); 4760 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4761 scrollY + mPaddingTop); 4762 dr.mDrawableTop.draw(canvas); 4763 canvas.restore(); 4764 } 4765 4766 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4767 // Make sure to update invalidateDrawable() when changing this code. 4768 if (dr.mDrawableBottom != null) { 4769 canvas.save(); 4770 canvas.translate(scrollX + compoundPaddingLeft + 4771 (hspace - dr.mDrawableWidthBottom) / 2, 4772 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4773 dr.mDrawableBottom.draw(canvas); 4774 canvas.restore(); 4775 } 4776 } 4777 4778 int color = mCurTextColor; 4779 4780 if (mLayout == null) { 4781 assumeLayout(); 4782 } 4783 4784 Layout layout = mLayout; 4785 int cursorcolor = color; 4786 4787 if (mHint != null && mText.length() == 0) { 4788 if (mHintTextColor != null) { 4789 color = mCurHintTextColor; 4790 } 4791 4792 layout = mHintLayout; 4793 } 4794 4795 mTextPaint.setColor(color); 4796 if (mCurrentAlpha != 255) { 4797 // If set, the alpha will override the color's alpha. Multiply the alphas. 4798 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4799 } 4800 mTextPaint.drawableState = getDrawableState(); 4801 4802 canvas.save(); 4803 /* Would be faster if we didn't have to do this. Can we chop the 4804 (displayable) text so that we don't need to do this ever? 4805 */ 4806 4807 int extendedPaddingTop = getExtendedPaddingTop(); 4808 int extendedPaddingBottom = getExtendedPaddingBottom(); 4809 4810 float clipLeft = compoundPaddingLeft + scrollX; 4811 float clipTop = extendedPaddingTop + scrollY; 4812 float clipRight = right - left - compoundPaddingRight + scrollX; 4813 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4814 4815 if (mShadowRadius != 0) { 4816 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4817 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4818 4819 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4820 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4821 } 4822 4823 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4824 4825 int voffsetText = 0; 4826 int voffsetCursor = 0; 4827 4828 // translate in by our padding 4829 { 4830 /* shortcircuit calling getVerticaOffset() */ 4831 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4832 voffsetText = getVerticalOffset(false); 4833 voffsetCursor = getVerticalOffset(true); 4834 } 4835 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4836 } 4837 4838 final int layoutDirection = getResolvedLayoutDirection(); 4839 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 4840 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 4841 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 4842 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4843 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4844 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4845 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4846 } 4847 4848 if (mMarquee != null && mMarquee.isRunning()) { 4849 canvas.translate(-mMarquee.mScroll, 0.0f); 4850 } 4851 } 4852 4853 Path highlight = null; 4854 int selStart = -1, selEnd = -1; 4855 boolean drawCursor = false; 4856 4857 // If there is no movement method, then there can be no selection. 4858 // Check that first and attempt to skip everything having to do with 4859 // the cursor. 4860 // XXX This is not strictly true -- a program could set the 4861 // selection manually if it really wanted to. 4862 if (mMovement != null && (isFocused() || isPressed())) { 4863 selStart = getSelectionStart(); 4864 selEnd = getSelectionEnd(); 4865 4866 if (selStart >= 0) { 4867 if (mHighlightPath == null) mHighlightPath = new Path(); 4868 4869 if (selStart == selEnd) { 4870 if (isCursorVisible() && 4871 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4872 if (mHighlightPathBogus) { 4873 mHighlightPath.reset(); 4874 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4875 updateCursorsPositions(); 4876 mHighlightPathBogus = false; 4877 } 4878 4879 // XXX should pass to skin instead of drawing directly 4880 mHighlightPaint.setColor(cursorcolor); 4881 if (mCurrentAlpha != 255) { 4882 mHighlightPaint.setAlpha( 4883 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4884 } 4885 mHighlightPaint.setStyle(Paint.Style.STROKE); 4886 highlight = mHighlightPath; 4887 drawCursor = mCursorCount > 0; 4888 } 4889 } else if (textCanBeSelected()) { 4890 if (mHighlightPathBogus) { 4891 mHighlightPath.reset(); 4892 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4893 mHighlightPathBogus = false; 4894 } 4895 4896 // XXX should pass to skin instead of drawing directly 4897 mHighlightPaint.setColor(mHighlightColor); 4898 if (mCurrentAlpha != 255) { 4899 mHighlightPaint.setAlpha( 4900 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4901 } 4902 mHighlightPaint.setStyle(Paint.Style.FILL); 4903 4904 highlight = mHighlightPath; 4905 } 4906 } 4907 } 4908 4909 /* Comment out until we decide what to do about animations 4910 boolean isLinearTextOn = false; 4911 if (currentTransformation != null) { 4912 isLinearTextOn = mTextPaint.isLinearTextOn(); 4913 Matrix m = currentTransformation.getMatrix(); 4914 if (!m.isIdentity()) { 4915 // mTextPaint.setLinearTextOn(true); 4916 } 4917 } 4918 */ 4919 4920 final InputMethodState ims = mInputMethodState; 4921 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4922 if (ims != null && ims.mBatchEditNesting == 0) { 4923 InputMethodManager imm = InputMethodManager.peekInstance(); 4924 if (imm != null) { 4925 if (imm.isActive(this)) { 4926 boolean reported = false; 4927 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4928 // We are in extract mode and the content has changed 4929 // in some way... just report complete new text to the 4930 // input method. 4931 reported = reportExtractedText(); 4932 } 4933 if (!reported && highlight != null) { 4934 int candStart = -1; 4935 int candEnd = -1; 4936 if (mText instanceof Spannable) { 4937 Spannable sp = (Spannable)mText; 4938 candStart = EditableInputConnection.getComposingSpanStart(sp); 4939 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4940 } 4941 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4942 } 4943 } 4944 4945 if (imm.isWatchingCursor(this) && highlight != null) { 4946 highlight.computeBounds(ims.mTmpRectF, true); 4947 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4948 4949 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4950 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4951 4952 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4953 4954 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4955 (int)(ims.mTmpRectF.top + 0.5), 4956 (int)(ims.mTmpRectF.right + 0.5), 4957 (int)(ims.mTmpRectF.bottom + 0.5)); 4958 4959 imm.updateCursor(this, 4960 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4961 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4962 } 4963 } 4964 } 4965 4966 if (mCorrectionHighlighter != null) { 4967 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 4968 } 4969 4970 if (drawCursor) { 4971 drawCursor(canvas, cursorOffsetVertical); 4972 // Rely on the drawable entirely, do not draw the cursor line. 4973 // Has to be done after the IMM related code above which relies on the highlight. 4974 highlight = null; 4975 } 4976 4977 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4978 4979 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4980 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4981 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4982 } 4983 4984 /* Comment out until we decide what to do about animations 4985 if (currentTransformation != null) { 4986 mTextPaint.setLinearTextOn(isLinearTextOn); 4987 } 4988 */ 4989 4990 canvas.restore(); 4991 } 4992 4993 private void updateCursorsPositions() { 4994 if (mCursorDrawableRes == 0) { 4995 mCursorCount = 0; 4996 return; 4997 } 4998 4999 final int offset = getSelectionStart(); 5000 final int line = mLayout.getLineForOffset(offset); 5001 final int top = mLayout.getLineTop(line); 5002 final int bottom = mLayout.getLineTop(line + 1); 5003 5004 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 5005 5006 int middle = bottom; 5007 if (mCursorCount == 2) { 5008 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 5009 middle = (top + bottom) >> 1; 5010 } 5011 5012 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 5013 5014 if (mCursorCount == 2) { 5015 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 5016 } 5017 } 5018 5019 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 5020 if (mCursorDrawable[cursorIndex] == null) 5021 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 5022 5023 if (mTempRect == null) mTempRect = new Rect(); 5024 5025 mCursorDrawable[cursorIndex].getPadding(mTempRect); 5026 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 5027 horizontal = Math.max(0.5f, horizontal - 0.5f); 5028 final int left = (int) (horizontal) - mTempRect.left; 5029 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 5030 bottom + mTempRect.bottom); 5031 } 5032 5033 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 5034 final boolean translate = cursorOffsetVertical != 0; 5035 if (translate) canvas.translate(0, cursorOffsetVertical); 5036 for (int i = 0; i < mCursorCount; i++) { 5037 mCursorDrawable[i].draw(canvas); 5038 } 5039 if (translate) canvas.translate(0, -cursorOffsetVertical); 5040 } 5041 5042 @Override 5043 public void getFocusedRect(Rect r) { 5044 if (mLayout == null) { 5045 super.getFocusedRect(r); 5046 return; 5047 } 5048 5049 int selEnd = getSelectionEnd(); 5050 if (selEnd < 0) { 5051 super.getFocusedRect(r); 5052 return; 5053 } 5054 5055 int selStart = getSelectionStart(); 5056 if (selStart < 0 || selStart >= selEnd) { 5057 int line = mLayout.getLineForOffset(selEnd); 5058 r.top = mLayout.getLineTop(line); 5059 r.bottom = mLayout.getLineBottom(line); 5060 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 5061 r.right = r.left + 4; 5062 } else { 5063 int lineStart = mLayout.getLineForOffset(selStart); 5064 int lineEnd = mLayout.getLineForOffset(selEnd); 5065 r.top = mLayout.getLineTop(lineStart); 5066 r.bottom = mLayout.getLineBottom(lineEnd); 5067 if (lineStart == lineEnd) { 5068 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 5069 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 5070 } else { 5071 // Selection extends across multiple lines -- the focused 5072 // rect covers the entire width. 5073 if (mHighlightPath == null) mHighlightPath = new Path(); 5074 if (mHighlightPathBogus) { 5075 mHighlightPath.reset(); 5076 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 5077 mHighlightPathBogus = false; 5078 } 5079 synchronized (sTempRect) { 5080 mHighlightPath.computeBounds(sTempRect, true); 5081 r.left = (int)sTempRect.left-1; 5082 r.right = (int)sTempRect.right+1; 5083 } 5084 } 5085 } 5086 5087 // Adjust for padding and gravity. 5088 int paddingLeft = getCompoundPaddingLeft(); 5089 int paddingTop = getExtendedPaddingTop(); 5090 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5091 paddingTop += getVerticalOffset(false); 5092 } 5093 r.offset(paddingLeft, paddingTop); 5094 } 5095 5096 /** 5097 * Return the number of lines of text, or 0 if the internal Layout has not 5098 * been built. 5099 */ 5100 public int getLineCount() { 5101 return mLayout != null ? mLayout.getLineCount() : 0; 5102 } 5103 5104 /** 5105 * Return the baseline for the specified line (0...getLineCount() - 1) 5106 * If bounds is not null, return the top, left, right, bottom extents 5107 * of the specified line in it. If the internal Layout has not been built, 5108 * return 0 and set bounds to (0, 0, 0, 0) 5109 * @param line which line to examine (0..getLineCount() - 1) 5110 * @param bounds Optional. If not null, it returns the extent of the line 5111 * @return the Y-coordinate of the baseline 5112 */ 5113 public int getLineBounds(int line, Rect bounds) { 5114 if (mLayout == null) { 5115 if (bounds != null) { 5116 bounds.set(0, 0, 0, 0); 5117 } 5118 return 0; 5119 } 5120 else { 5121 int baseline = mLayout.getLineBounds(line, bounds); 5122 5123 int voffset = getExtendedPaddingTop(); 5124 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5125 voffset += getVerticalOffset(true); 5126 } 5127 if (bounds != null) { 5128 bounds.offset(getCompoundPaddingLeft(), voffset); 5129 } 5130 return baseline + voffset; 5131 } 5132 } 5133 5134 @Override 5135 public int getBaseline() { 5136 if (mLayout == null) { 5137 return super.getBaseline(); 5138 } 5139 5140 int voffset = 0; 5141 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5142 voffset = getVerticalOffset(true); 5143 } 5144 5145 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 5146 } 5147 5148 /** 5149 * @hide 5150 * @param offsetRequired 5151 */ 5152 @Override 5153 protected int getFadeTop(boolean offsetRequired) { 5154 if (mLayout == null) return 0; 5155 5156 int voffset = 0; 5157 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5158 voffset = getVerticalOffset(true); 5159 } 5160 5161 if (offsetRequired) voffset += getTopPaddingOffset(); 5162 5163 return getExtendedPaddingTop() + voffset; 5164 } 5165 5166 /** 5167 * @hide 5168 * @param offsetRequired 5169 */ 5170 @Override 5171 protected int getFadeHeight(boolean offsetRequired) { 5172 return mLayout != null ? mLayout.getHeight() : 0; 5173 } 5174 5175 @Override 5176 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5177 if (keyCode == KeyEvent.KEYCODE_BACK) { 5178 boolean isInSelectionMode = mSelectionActionMode != null; 5179 5180 if (isInSelectionMode) { 5181 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 5182 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5183 if (state != null) { 5184 state.startTracking(event, this); 5185 } 5186 return true; 5187 } else if (event.getAction() == KeyEvent.ACTION_UP) { 5188 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5189 if (state != null) { 5190 state.handleUpEvent(event); 5191 } 5192 if (event.isTracking() && !event.isCanceled()) { 5193 if (isInSelectionMode) { 5194 stopSelectionActionMode(); 5195 return true; 5196 } 5197 } 5198 } 5199 } 5200 } 5201 return super.onKeyPreIme(keyCode, event); 5202 } 5203 5204 @Override 5205 public boolean onKeyDown(int keyCode, KeyEvent event) { 5206 int which = doKeyDown(keyCode, event, null); 5207 if (which == 0) { 5208 // Go through default dispatching. 5209 return super.onKeyDown(keyCode, event); 5210 } 5211 5212 return true; 5213 } 5214 5215 @Override 5216 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5217 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 5218 5219 int which = doKeyDown(keyCode, down, event); 5220 if (which == 0) { 5221 // Go through default dispatching. 5222 return super.onKeyMultiple(keyCode, repeatCount, event); 5223 } 5224 if (which == -1) { 5225 // Consumed the whole thing. 5226 return true; 5227 } 5228 5229 repeatCount--; 5230 5231 // We are going to dispatch the remaining events to either the input 5232 // or movement method. To do this, we will just send a repeated stream 5233 // of down and up events until we have done the complete repeatCount. 5234 // It would be nice if those interfaces had an onKeyMultiple() method, 5235 // but adding that is a more complicated change. 5236 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 5237 if (which == 1) { 5238 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5239 while (--repeatCount > 0) { 5240 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 5241 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5242 } 5243 hideErrorIfUnchanged(); 5244 5245 } else if (which == 2) { 5246 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5247 while (--repeatCount > 0) { 5248 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 5249 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5250 } 5251 } 5252 5253 return true; 5254 } 5255 5256 /** 5257 * Returns true if pressing ENTER in this field advances focus instead 5258 * of inserting the character. This is true mostly in single-line fields, 5259 * but also in mail addresses and subjects which will display on multiple 5260 * lines but where it doesn't make sense to insert newlines. 5261 */ 5262 private boolean shouldAdvanceFocusOnEnter() { 5263 if (mInput == null) { 5264 return false; 5265 } 5266 5267 if (mSingleLine) { 5268 return true; 5269 } 5270 5271 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5272 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5273 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 5274 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 5275 return true; 5276 } 5277 } 5278 5279 return false; 5280 } 5281 5282 /** 5283 * Returns true if pressing TAB in this field advances focus instead 5284 * of inserting the character. Insert tabs only in multi-line editors. 5285 */ 5286 private boolean shouldAdvanceFocusOnTab() { 5287 if (mInput != null && !mSingleLine) { 5288 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5289 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5290 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 5291 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 5292 return false; 5293 } 5294 } 5295 } 5296 return true; 5297 } 5298 5299 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 5300 if (!isEnabled()) { 5301 return 0; 5302 } 5303 5304 switch (keyCode) { 5305 case KeyEvent.KEYCODE_ENTER: 5306 mEnterKeyIsDown = true; 5307 if (event.hasNoModifiers()) { 5308 // When mInputContentType is set, we know that we are 5309 // running in a "modern" cupcake environment, so don't need 5310 // to worry about the application trying to capture 5311 // enter key events. 5312 if (mInputContentType != null) { 5313 // If there is an action listener, given them a 5314 // chance to consume the event. 5315 if (mInputContentType.onEditorActionListener != null && 5316 mInputContentType.onEditorActionListener.onEditorAction( 5317 this, EditorInfo.IME_NULL, event)) { 5318 mInputContentType.enterDown = true; 5319 // We are consuming the enter key for them. 5320 return -1; 5321 } 5322 } 5323 5324 // If our editor should move focus when enter is pressed, or 5325 // this is a generated event from an IME action button, then 5326 // don't let it be inserted into the text. 5327 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5328 || shouldAdvanceFocusOnEnter()) { 5329 if (mOnClickListener != null) { 5330 return 0; 5331 } 5332 return -1; 5333 } 5334 } 5335 break; 5336 5337 case KeyEvent.KEYCODE_DPAD_CENTER: 5338 mDPadCenterIsDown = true; 5339 if (event.hasNoModifiers()) { 5340 if (shouldAdvanceFocusOnEnter()) { 5341 return 0; 5342 } 5343 } 5344 break; 5345 5346 case KeyEvent.KEYCODE_TAB: 5347 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 5348 if (shouldAdvanceFocusOnTab()) { 5349 return 0; 5350 } 5351 } 5352 break; 5353 5354 // Has to be done on key down (and not on key up) to correctly be intercepted. 5355 case KeyEvent.KEYCODE_BACK: 5356 if (mSelectionActionMode != null) { 5357 stopSelectionActionMode(); 5358 return -1; 5359 } 5360 break; 5361 } 5362 5363 if (mInput != null) { 5364 resetErrorChangedFlag(); 5365 5366 boolean doDown = true; 5367 if (otherEvent != null) { 5368 try { 5369 beginBatchEdit(); 5370 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 5371 hideErrorIfUnchanged(); 5372 doDown = false; 5373 if (handled) { 5374 return -1; 5375 } 5376 } catch (AbstractMethodError e) { 5377 // onKeyOther was added after 1.0, so if it isn't 5378 // implemented we need to try to dispatch as a regular down. 5379 } finally { 5380 endBatchEdit(); 5381 } 5382 } 5383 5384 if (doDown) { 5385 beginBatchEdit(); 5386 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 5387 endBatchEdit(); 5388 hideErrorIfUnchanged(); 5389 if (handled) return 1; 5390 } 5391 } 5392 5393 // bug 650865: sometimes we get a key event before a layout. 5394 // don't try to move around if we don't know the layout. 5395 5396 if (mMovement != null && mLayout != null) { 5397 boolean doDown = true; 5398 if (otherEvent != null) { 5399 try { 5400 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 5401 otherEvent); 5402 doDown = false; 5403 if (handled) { 5404 return -1; 5405 } 5406 } catch (AbstractMethodError e) { 5407 // onKeyOther was added after 1.0, so if it isn't 5408 // implemented we need to try to dispatch as a regular down. 5409 } 5410 } 5411 if (doDown) { 5412 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 5413 return 2; 5414 } 5415 } 5416 5417 return 0; 5418 } 5419 5420 /** 5421 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 5422 * can be recorded. 5423 * @hide 5424 */ 5425 public void resetErrorChangedFlag() { 5426 /* 5427 * Keep track of what the error was before doing the input 5428 * so that if an input filter changed the error, we leave 5429 * that error showing. Otherwise, we take down whatever 5430 * error was showing when the user types something. 5431 */ 5432 mErrorWasChanged = false; 5433 } 5434 5435 /** 5436 * @hide 5437 */ 5438 public void hideErrorIfUnchanged() { 5439 if (mError != null && !mErrorWasChanged) { 5440 setError(null, null); 5441 } 5442 } 5443 5444 @Override 5445 public boolean onKeyUp(int keyCode, KeyEvent event) { 5446 if (!isEnabled()) { 5447 return super.onKeyUp(keyCode, event); 5448 } 5449 5450 switch (keyCode) { 5451 case KeyEvent.KEYCODE_DPAD_CENTER: 5452 mDPadCenterIsDown = false; 5453 if (event.hasNoModifiers()) { 5454 /* 5455 * If there is a click listener, just call through to 5456 * super, which will invoke it. 5457 * 5458 * If there isn't a click listener, try to show the soft 5459 * input method. (It will also 5460 * call performClick(), but that won't do anything in 5461 * this case.) 5462 */ 5463 if (mOnClickListener == null) { 5464 if (mMovement != null && mText instanceof Editable 5465 && mLayout != null && onCheckIsTextEditor()) { 5466 InputMethodManager imm = InputMethodManager.peekInstance(); 5467 viewClicked(imm); 5468 if (imm != null) { 5469 imm.showSoftInput(this, 0); 5470 } 5471 } 5472 } 5473 } 5474 return super.onKeyUp(keyCode, event); 5475 5476 case KeyEvent.KEYCODE_ENTER: 5477 mEnterKeyIsDown = false; 5478 if (event.hasNoModifiers()) { 5479 if (mInputContentType != null 5480 && mInputContentType.onEditorActionListener != null 5481 && mInputContentType.enterDown) { 5482 mInputContentType.enterDown = false; 5483 if (mInputContentType.onEditorActionListener.onEditorAction( 5484 this, EditorInfo.IME_NULL, event)) { 5485 return true; 5486 } 5487 } 5488 5489 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5490 || shouldAdvanceFocusOnEnter()) { 5491 /* 5492 * If there is a click listener, just call through to 5493 * super, which will invoke it. 5494 * 5495 * If there isn't a click listener, try to advance focus, 5496 * but still call through to super, which will reset the 5497 * pressed state and longpress state. (It will also 5498 * call performClick(), but that won't do anything in 5499 * this case.) 5500 */ 5501 if (mOnClickListener == null) { 5502 View v = focusSearch(FOCUS_DOWN); 5503 5504 if (v != null) { 5505 if (!v.requestFocus(FOCUS_DOWN)) { 5506 throw new IllegalStateException( 5507 "focus search returned a view " + 5508 "that wasn't able to take focus!"); 5509 } 5510 5511 /* 5512 * Return true because we handled the key; super 5513 * will return false because there was no click 5514 * listener. 5515 */ 5516 super.onKeyUp(keyCode, event); 5517 return true; 5518 } else if ((event.getFlags() 5519 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 5520 // No target for next focus, but make sure the IME 5521 // if this came from it. 5522 InputMethodManager imm = InputMethodManager.peekInstance(); 5523 if (imm != null && imm.isActive(this)) { 5524 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5525 } 5526 } 5527 } 5528 } 5529 return super.onKeyUp(keyCode, event); 5530 } 5531 break; 5532 } 5533 5534 if (mInput != null) 5535 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 5536 return true; 5537 5538 if (mMovement != null && mLayout != null) 5539 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5540 return true; 5541 5542 return super.onKeyUp(keyCode, event); 5543 } 5544 5545 @Override public boolean onCheckIsTextEditor() { 5546 return mInputType != EditorInfo.TYPE_NULL; 5547 } 5548 5549 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5550 if (onCheckIsTextEditor() && isEnabled()) { 5551 if (mInputMethodState == null) { 5552 mInputMethodState = new InputMethodState(); 5553 } 5554 outAttrs.inputType = mInputType; 5555 if (mInputContentType != null) { 5556 outAttrs.imeOptions = mInputContentType.imeOptions; 5557 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 5558 outAttrs.actionLabel = mInputContentType.imeActionLabel; 5559 outAttrs.actionId = mInputContentType.imeActionId; 5560 outAttrs.extras = mInputContentType.extras; 5561 } else { 5562 outAttrs.imeOptions = EditorInfo.IME_NULL; 5563 } 5564 if (focusSearch(FOCUS_DOWN) != null) { 5565 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5566 } 5567 if (focusSearch(FOCUS_UP) != null) { 5568 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5569 } 5570 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5571 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5572 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5573 // An action has not been set, but the enter key will move to 5574 // the next focus, so set the action to that. 5575 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5576 } else { 5577 // An action has not been set, and there is no focus to move 5578 // to, so let's just supply a "done" action. 5579 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5580 } 5581 if (!shouldAdvanceFocusOnEnter()) { 5582 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5583 } 5584 } 5585 if (isMultilineInputType(outAttrs.inputType)) { 5586 // Multi-line text editors should always show an enter key. 5587 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5588 } 5589 outAttrs.hintText = mHint; 5590 if (mText instanceof Editable) { 5591 InputConnection ic = new EditableInputConnection(this); 5592 outAttrs.initialSelStart = getSelectionStart(); 5593 outAttrs.initialSelEnd = getSelectionEnd(); 5594 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5595 return ic; 5596 } 5597 } 5598 return null; 5599 } 5600 5601 /** 5602 * If this TextView contains editable content, extract a portion of it 5603 * based on the information in <var>request</var> in to <var>outText</var>. 5604 * @return Returns true if the text was successfully extracted, else false. 5605 */ 5606 public boolean extractText(ExtractedTextRequest request, 5607 ExtractedText outText) { 5608 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5609 EXTRACT_UNKNOWN, outText); 5610 } 5611 5612 static final int EXTRACT_NOTHING = -2; 5613 static final int EXTRACT_UNKNOWN = -1; 5614 5615 boolean extractTextInternal(ExtractedTextRequest request, 5616 int partialStartOffset, int partialEndOffset, int delta, 5617 ExtractedText outText) { 5618 final CharSequence content = mText; 5619 if (content != null) { 5620 if (partialStartOffset != EXTRACT_NOTHING) { 5621 final int N = content.length(); 5622 if (partialStartOffset < 0) { 5623 outText.partialStartOffset = outText.partialEndOffset = -1; 5624 partialStartOffset = 0; 5625 partialEndOffset = N; 5626 } else { 5627 // Now use the delta to determine the actual amount of text 5628 // we need. 5629 partialEndOffset += delta; 5630 // Adjust offsets to ensure we contain full spans. 5631 if (content instanceof Spanned) { 5632 Spanned spanned = (Spanned)content; 5633 Object[] spans = spanned.getSpans(partialStartOffset, 5634 partialEndOffset, ParcelableSpan.class); 5635 int i = spans.length; 5636 while (i > 0) { 5637 i--; 5638 int j = spanned.getSpanStart(spans[i]); 5639 if (j < partialStartOffset) partialStartOffset = j; 5640 j = spanned.getSpanEnd(spans[i]); 5641 if (j > partialEndOffset) partialEndOffset = j; 5642 } 5643 } 5644 outText.partialStartOffset = partialStartOffset; 5645 outText.partialEndOffset = partialEndOffset - delta; 5646 5647 if (partialStartOffset > N) { 5648 partialStartOffset = N; 5649 } else if (partialStartOffset < 0) { 5650 partialStartOffset = 0; 5651 } 5652 if (partialEndOffset > N) { 5653 partialEndOffset = N; 5654 } else if (partialEndOffset < 0) { 5655 partialEndOffset = 0; 5656 } 5657 } 5658 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5659 outText.text = content.subSequence(partialStartOffset, 5660 partialEndOffset); 5661 } else { 5662 outText.text = TextUtils.substring(content, partialStartOffset, 5663 partialEndOffset); 5664 } 5665 } else { 5666 outText.partialStartOffset = 0; 5667 outText.partialEndOffset = 0; 5668 outText.text = ""; 5669 } 5670 outText.flags = 0; 5671 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5672 outText.flags |= ExtractedText.FLAG_SELECTING; 5673 } 5674 if (mSingleLine) { 5675 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5676 } 5677 outText.startOffset = 0; 5678 outText.selectionStart = getSelectionStart(); 5679 outText.selectionEnd = getSelectionEnd(); 5680 return true; 5681 } 5682 return false; 5683 } 5684 5685 boolean reportExtractedText() { 5686 final InputMethodState ims = mInputMethodState; 5687 if (ims != null) { 5688 final boolean contentChanged = ims.mContentChanged; 5689 if (contentChanged || ims.mSelectionModeChanged) { 5690 ims.mContentChanged = false; 5691 ims.mSelectionModeChanged = false; 5692 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5693 if (req != null) { 5694 InputMethodManager imm = InputMethodManager.peekInstance(); 5695 if (imm != null) { 5696 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5697 + ims.mChangedStart + " end=" + ims.mChangedEnd 5698 + " delta=" + ims.mChangedDelta); 5699 if (ims.mChangedStart < 0 && !contentChanged) { 5700 ims.mChangedStart = EXTRACT_NOTHING; 5701 } 5702 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5703 ims.mChangedDelta, ims.mTmpExtracted)) { 5704 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5705 + ims.mTmpExtracted.partialStartOffset 5706 + " end=" + ims.mTmpExtracted.partialEndOffset 5707 + ": " + ims.mTmpExtracted.text); 5708 imm.updateExtractedText(this, req.token, 5709 mInputMethodState.mTmpExtracted); 5710 ims.mChangedStart = EXTRACT_UNKNOWN; 5711 ims.mChangedEnd = EXTRACT_UNKNOWN; 5712 ims.mChangedDelta = 0; 5713 ims.mContentChanged = false; 5714 return true; 5715 } 5716 } 5717 } 5718 } 5719 } 5720 return false; 5721 } 5722 5723 /** 5724 * This is used to remove all style-impacting spans from text before new 5725 * extracted text is being replaced into it, so that we don't have any 5726 * lingering spans applied during the replace. 5727 */ 5728 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5729 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5730 int i = spans.length; 5731 while (i > 0) { 5732 i--; 5733 spannable.removeSpan(spans[i]); 5734 } 5735 } 5736 5737 /** 5738 * Apply to this text view the given extracted text, as previously 5739 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5740 */ 5741 public void setExtractedText(ExtractedText text) { 5742 Editable content = getEditableText(); 5743 if (text.text != null) { 5744 if (content == null) { 5745 setText(text.text, TextView.BufferType.EDITABLE); 5746 } else if (text.partialStartOffset < 0) { 5747 removeParcelableSpans(content, 0, content.length()); 5748 content.replace(0, content.length(), text.text); 5749 } else { 5750 final int N = content.length(); 5751 int start = text.partialStartOffset; 5752 if (start > N) start = N; 5753 int end = text.partialEndOffset; 5754 if (end > N) end = N; 5755 removeParcelableSpans(content, start, end); 5756 content.replace(start, end, text.text); 5757 } 5758 } 5759 5760 // Now set the selection position... make sure it is in range, to 5761 // avoid crashes. If this is a partial update, it is possible that 5762 // the underlying text may have changed, causing us problems here. 5763 // Also we just don't want to trust clients to do the right thing. 5764 Spannable sp = (Spannable)getText(); 5765 final int N = sp.length(); 5766 int start = text.selectionStart; 5767 if (start < 0) start = 0; 5768 else if (start > N) start = N; 5769 int end = text.selectionEnd; 5770 if (end < 0) end = 0; 5771 else if (end > N) end = N; 5772 Selection.setSelection(sp, start, end); 5773 5774 // Finally, update the selection mode. 5775 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5776 MetaKeyKeyListener.startSelecting(this, sp); 5777 } else { 5778 MetaKeyKeyListener.stopSelecting(this, sp); 5779 } 5780 } 5781 5782 /** 5783 * @hide 5784 */ 5785 public void setExtracting(ExtractedTextRequest req) { 5786 if (mInputMethodState != null) { 5787 mInputMethodState.mExtracting = req; 5788 } 5789 // This would stop a possible selection mode, but no such mode is started in case 5790 // extracted mode will start. Some text is selected though, and will trigger an action mode 5791 // in the extracted view. 5792 hideControllers(); 5793 } 5794 5795 /** 5796 * Called by the framework in response to a text completion from 5797 * the current input method, provided by it calling 5798 * {@link InputConnection#commitCompletion 5799 * InputConnection.commitCompletion()}. The default implementation does 5800 * nothing; text views that are supporting auto-completion should override 5801 * this to do their desired behavior. 5802 * 5803 * @param text The auto complete text the user has selected. 5804 */ 5805 public void onCommitCompletion(CompletionInfo text) { 5806 // intentionally empty 5807 } 5808 5809 /** 5810 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5811 * a dictionnary) from the current input method, provided by it calling 5812 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5813 * implementation flashes the background of the corrected word to provide feedback to the user. 5814 * 5815 * @param info The auto correct info about the text that was corrected. 5816 */ 5817 public void onCommitCorrection(CorrectionInfo info) { 5818 if (mCorrectionHighlighter == null) { 5819 mCorrectionHighlighter = new CorrectionHighlighter(); 5820 } else { 5821 mCorrectionHighlighter.invalidate(false); 5822 } 5823 5824 mCorrectionHighlighter.highlight(info); 5825 } 5826 5827 private class CorrectionHighlighter { 5828 private final Path mPath = new Path(); 5829 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5830 private int mStart, mEnd; 5831 private long mFadingStartTime; 5832 private final static int FADE_OUT_DURATION = 400; 5833 5834 public CorrectionHighlighter() { 5835 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5836 mPaint.setStyle(Paint.Style.FILL); 5837 } 5838 5839 public void highlight(CorrectionInfo info) { 5840 mStart = info.getOffset(); 5841 mEnd = mStart + info.getNewText().length(); 5842 mFadingStartTime = SystemClock.uptimeMillis(); 5843 5844 if (mStart < 0 || mEnd < 0) { 5845 stopAnimation(); 5846 } 5847 } 5848 5849 public void draw(Canvas canvas, int cursorOffsetVertical) { 5850 if (updatePath() && updatePaint()) { 5851 if (cursorOffsetVertical != 0) { 5852 canvas.translate(0, cursorOffsetVertical); 5853 } 5854 5855 canvas.drawPath(mPath, mPaint); 5856 5857 if (cursorOffsetVertical != 0) { 5858 canvas.translate(0, -cursorOffsetVertical); 5859 } 5860 invalidate(true); 5861 } else { 5862 stopAnimation(); 5863 invalidate(false); 5864 } 5865 } 5866 5867 private boolean updatePaint() { 5868 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5869 if (duration > FADE_OUT_DURATION) return false; 5870 5871 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5872 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5873 final int color = (mHighlightColor & 0x00FFFFFF) + 5874 ((int) (highlightColorAlpha * coef) << 24); 5875 mPaint.setColor(color); 5876 return true; 5877 } 5878 5879 private boolean updatePath() { 5880 final Layout layout = TextView.this.mLayout; 5881 if (layout == null) return false; 5882 5883 // Update in case text is edited while the animation is run 5884 final int length = mText.length(); 5885 int start = Math.min(length, mStart); 5886 int end = Math.min(length, mEnd); 5887 5888 mPath.reset(); 5889 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5890 return true; 5891 } 5892 5893 private void invalidate(boolean delayed) { 5894 if (TextView.this.mLayout == null) return; 5895 5896 synchronized (sTempRect) { 5897 mPath.computeBounds(sTempRect, false); 5898 5899 int left = getCompoundPaddingLeft(); 5900 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5901 5902 if (delayed) { 5903 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5904 left + (int) sTempRect.left, top + (int) sTempRect.top, 5905 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5906 } else { 5907 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5908 (int) sTempRect.right, (int) sTempRect.bottom); 5909 } 5910 } 5911 } 5912 5913 private void stopAnimation() { 5914 TextView.this.mCorrectionHighlighter = null; 5915 } 5916 } 5917 5918 public void beginBatchEdit() { 5919 mInBatchEditControllers = true; 5920 final InputMethodState ims = mInputMethodState; 5921 if (ims != null) { 5922 int nesting = ++ims.mBatchEditNesting; 5923 if (nesting == 1) { 5924 ims.mCursorChanged = false; 5925 ims.mChangedDelta = 0; 5926 if (ims.mContentChanged) { 5927 // We already have a pending change from somewhere else, 5928 // so turn this into a full update. 5929 ims.mChangedStart = 0; 5930 ims.mChangedEnd = mText.length(); 5931 } else { 5932 ims.mChangedStart = EXTRACT_UNKNOWN; 5933 ims.mChangedEnd = EXTRACT_UNKNOWN; 5934 ims.mContentChanged = false; 5935 } 5936 onBeginBatchEdit(); 5937 } 5938 } 5939 } 5940 5941 public void endBatchEdit() { 5942 mInBatchEditControllers = false; 5943 final InputMethodState ims = mInputMethodState; 5944 if (ims != null) { 5945 int nesting = --ims.mBatchEditNesting; 5946 if (nesting == 0) { 5947 finishBatchEdit(ims); 5948 } 5949 } 5950 } 5951 5952 void ensureEndedBatchEdit() { 5953 final InputMethodState ims = mInputMethodState; 5954 if (ims != null && ims.mBatchEditNesting != 0) { 5955 ims.mBatchEditNesting = 0; 5956 finishBatchEdit(ims); 5957 } 5958 } 5959 5960 void finishBatchEdit(final InputMethodState ims) { 5961 onEndBatchEdit(); 5962 5963 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5964 updateAfterEdit(); 5965 reportExtractedText(); 5966 } else if (ims.mCursorChanged) { 5967 // Cheezy way to get us to report the current cursor location. 5968 invalidateCursor(); 5969 } 5970 } 5971 5972 void updateAfterEdit() { 5973 invalidate(); 5974 int curs = getSelectionStart(); 5975 5976 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5977 registerForPreDraw(); 5978 } 5979 5980 if (curs >= 0) { 5981 mHighlightPathBogus = true; 5982 makeBlink(); 5983 bringPointIntoView(curs); 5984 } 5985 5986 checkForResize(); 5987 } 5988 5989 /** 5990 * Called by the framework in response to a request to begin a batch 5991 * of edit operations through a call to link {@link #beginBatchEdit()}. 5992 */ 5993 public void onBeginBatchEdit() { 5994 // intentionally empty 5995 } 5996 5997 /** 5998 * Called by the framework in response to a request to end a batch 5999 * of edit operations through a call to link {@link #endBatchEdit}. 6000 */ 6001 public void onEndBatchEdit() { 6002 // intentionally empty 6003 } 6004 6005 /** 6006 * Called by the framework in response to a private command from the 6007 * current method, provided by it calling 6008 * {@link InputConnection#performPrivateCommand 6009 * InputConnection.performPrivateCommand()}. 6010 * 6011 * @param action The action name of the command. 6012 * @param data Any additional data for the command. This may be null. 6013 * @return Return true if you handled the command, else false. 6014 */ 6015 public boolean onPrivateIMECommand(String action, Bundle data) { 6016 return false; 6017 } 6018 6019 private void nullLayouts() { 6020 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 6021 mSavedLayout = (BoringLayout) mLayout; 6022 } 6023 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 6024 mSavedHintLayout = (BoringLayout) mHintLayout; 6025 } 6026 6027 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 6028 6029 // Since it depends on the value of mLayout 6030 prepareCursorControllers(); 6031 } 6032 6033 /** 6034 * Make a new Layout based on the already-measured size of the view, 6035 * on the assumption that it was measured correctly at some point. 6036 */ 6037 private void assumeLayout() { 6038 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6039 6040 if (width < 1) { 6041 width = 0; 6042 } 6043 6044 int physicalWidth = width; 6045 6046 if (mHorizontallyScrolling) { 6047 width = VERY_WIDE; 6048 } 6049 6050 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 6051 physicalWidth, false); 6052 } 6053 6054 @Override 6055 protected void resetResolvedLayoutDirection() { 6056 super.resetResolvedLayoutDirection(); 6057 6058 if (mLayoutAlignment != null && 6059 (mTextAlign == TextAlign.VIEW_START || 6060 mTextAlign == TextAlign.VIEW_END)) { 6061 mLayoutAlignment = null; 6062 } 6063 } 6064 6065 private Layout.Alignment getLayoutAlignment() { 6066 if (mLayoutAlignment == null) { 6067 Layout.Alignment alignment; 6068 TextAlign textAlign = mTextAlign; 6069 switch (textAlign) { 6070 case INHERIT: 6071 // fall through to gravity temporarily 6072 // intention is to inherit value through view hierarchy. 6073 case GRAVITY: 6074 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 6075 case Gravity.START: 6076 alignment = Layout.Alignment.ALIGN_NORMAL; 6077 break; 6078 case Gravity.END: 6079 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6080 break; 6081 case Gravity.LEFT: 6082 alignment = Layout.Alignment.ALIGN_LEFT; 6083 break; 6084 case Gravity.RIGHT: 6085 alignment = Layout.Alignment.ALIGN_RIGHT; 6086 break; 6087 case Gravity.CENTER_HORIZONTAL: 6088 alignment = Layout.Alignment.ALIGN_CENTER; 6089 break; 6090 default: 6091 alignment = Layout.Alignment.ALIGN_NORMAL; 6092 break; 6093 } 6094 break; 6095 case TEXT_START: 6096 alignment = Layout.Alignment.ALIGN_NORMAL; 6097 break; 6098 case TEXT_END: 6099 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6100 break; 6101 case CENTER: 6102 alignment = Layout.Alignment.ALIGN_CENTER; 6103 break; 6104 case VIEW_START: 6105 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6106 Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 6107 break; 6108 case VIEW_END: 6109 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6110 Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 6111 break; 6112 default: 6113 alignment = Layout.Alignment.ALIGN_NORMAL; 6114 break; 6115 } 6116 mLayoutAlignment = alignment; 6117 } 6118 return mLayoutAlignment; 6119 } 6120 6121 /** 6122 * The width passed in is now the desired layout width, 6123 * not the full view width with padding. 6124 * {@hide} 6125 */ 6126 protected void makeNewLayout(int wantWidth, int hintWidth, 6127 BoringLayout.Metrics boring, 6128 BoringLayout.Metrics hintBoring, 6129 int ellipsisWidth, boolean bringIntoView) { 6130 stopMarquee(); 6131 6132 // Update "old" cached values 6133 mOldMaximum = mMaximum; 6134 mOldMaxMode = mMaxMode; 6135 6136 mHighlightPathBogus = true; 6137 6138 if (wantWidth < 0) { 6139 wantWidth = 0; 6140 } 6141 if (hintWidth < 0) { 6142 hintWidth = 0; 6143 } 6144 6145 Layout.Alignment alignment = getLayoutAlignment(); 6146 boolean shouldEllipsize = mEllipsize != null && mInput == null; 6147 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE && 6148 mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 6149 TruncateAt effectiveEllipsize = mEllipsize; 6150 if (mEllipsize == TruncateAt.MARQUEE && 6151 mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 6152 effectiveEllipsize = TruncateAt.END_SMALL; 6153 } 6154 6155 if (mTextDir == null) { 6156 resolveTextDirection(); 6157 } 6158 6159 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 6160 effectiveEllipsize, effectiveEllipsize == mEllipsize); 6161 if (switchEllipsize) { 6162 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ? 6163 TruncateAt.END : TruncateAt.MARQUEE; 6164 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 6165 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 6166 } 6167 6168 shouldEllipsize = mEllipsize != null; 6169 mHintLayout = null; 6170 6171 if (mHint != null) { 6172 if (shouldEllipsize) hintWidth = wantWidth; 6173 6174 if (hintBoring == UNKNOWN_BORING) { 6175 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 6176 mHintBoring); 6177 if (hintBoring != null) { 6178 mHintBoring = hintBoring; 6179 } 6180 } 6181 6182 if (hintBoring != null) { 6183 if (hintBoring.width <= hintWidth && 6184 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 6185 if (mSavedHintLayout != null) { 6186 mHintLayout = mSavedHintLayout. 6187 replaceOrMake(mHint, mTextPaint, 6188 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6189 hintBoring, mIncludePad); 6190 } else { 6191 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6192 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6193 hintBoring, mIncludePad); 6194 } 6195 6196 mSavedHintLayout = (BoringLayout) mHintLayout; 6197 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 6198 if (mSavedHintLayout != null) { 6199 mHintLayout = mSavedHintLayout. 6200 replaceOrMake(mHint, mTextPaint, 6201 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6202 hintBoring, mIncludePad, mEllipsize, 6203 ellipsisWidth); 6204 } else { 6205 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6206 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6207 hintBoring, mIncludePad, mEllipsize, 6208 ellipsisWidth); 6209 } 6210 } else if (shouldEllipsize) { 6211 mHintLayout = new StaticLayout(mHint, 6212 0, mHint.length(), 6213 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6214 mSpacingAdd, mIncludePad, mEllipsize, 6215 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6216 } else { 6217 mHintLayout = new StaticLayout(mHint, mTextPaint, 6218 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6219 mIncludePad); 6220 } 6221 } else if (shouldEllipsize) { 6222 mHintLayout = new StaticLayout(mHint, 6223 0, mHint.length(), 6224 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6225 mSpacingAdd, mIncludePad, mEllipsize, 6226 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6227 } else { 6228 mHintLayout = new StaticLayout(mHint, mTextPaint, 6229 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6230 mIncludePad); 6231 } 6232 } 6233 6234 if (bringIntoView) { 6235 registerForPreDraw(); 6236 } 6237 6238 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6239 if (!compressText(ellipsisWidth)) { 6240 final int height = mLayoutParams.height; 6241 // If the size of the view does not depend on the size of the text, try to 6242 // start the marquee immediately 6243 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 6244 startMarquee(); 6245 } else { 6246 // Defer the start of the marquee until we know our width (see setFrame()) 6247 mRestartMarquee = true; 6248 } 6249 } 6250 } 6251 6252 // CursorControllers need a non-null mLayout 6253 prepareCursorControllers(); 6254 } 6255 6256 private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 6257 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 6258 boolean useSaved) { 6259 Layout result = null; 6260 if (mText instanceof Spannable) { 6261 result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth, 6262 alignment, mTextDir, mSpacingMult, 6263 mSpacingAdd, mIncludePad, mInput == null ? effectiveEllipsize : null, 6264 ellipsisWidth); 6265 } else { 6266 if (boring == UNKNOWN_BORING) { 6267 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6268 if (boring != null) { 6269 mBoring = boring; 6270 } 6271 } 6272 6273 if (boring != null) { 6274 if (boring.width <= wantWidth && 6275 (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 6276 if (useSaved && mSavedLayout != null) { 6277 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6278 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6279 boring, mIncludePad); 6280 } else { 6281 result = BoringLayout.make(mTransformed, mTextPaint, 6282 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6283 boring, mIncludePad); 6284 } 6285 6286 if (useSaved) { 6287 mSavedLayout = (BoringLayout) result; 6288 } 6289 } else if (shouldEllipsize && boring.width <= wantWidth) { 6290 if (useSaved && mSavedLayout != null) { 6291 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6292 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6293 boring, mIncludePad, effectiveEllipsize, 6294 ellipsisWidth); 6295 } else { 6296 result = BoringLayout.make(mTransformed, mTextPaint, 6297 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6298 boring, mIncludePad, effectiveEllipsize, 6299 ellipsisWidth); 6300 } 6301 } else if (shouldEllipsize) { 6302 result = new StaticLayout(mTransformed, 6303 0, mTransformed.length(), 6304 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6305 mSpacingAdd, mIncludePad, effectiveEllipsize, 6306 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6307 } else { 6308 result = new StaticLayout(mTransformed, mTextPaint, 6309 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6310 mIncludePad); 6311 } 6312 } else if (shouldEllipsize) { 6313 result = new StaticLayout(mTransformed, 6314 0, mTransformed.length(), 6315 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6316 mSpacingAdd, mIncludePad, effectiveEllipsize, 6317 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6318 } else { 6319 result = new StaticLayout(mTransformed, mTextPaint, 6320 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6321 mIncludePad); 6322 } 6323 } 6324 return result; 6325 } 6326 6327 private boolean compressText(float width) { 6328 if (isHardwareAccelerated()) return false; 6329 6330 // Only compress the text if it hasn't been compressed by the previous pass 6331 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 6332 mTextPaint.getTextScaleX() == 1.0f) { 6333 final float textWidth = mLayout.getLineWidth(0); 6334 final float overflow = (textWidth + 1.0f - width) / width; 6335 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 6336 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 6337 post(new Runnable() { 6338 public void run() { 6339 requestLayout(); 6340 } 6341 }); 6342 return true; 6343 } 6344 } 6345 6346 return false; 6347 } 6348 6349 private static int desired(Layout layout) { 6350 int n = layout.getLineCount(); 6351 CharSequence text = layout.getText(); 6352 float max = 0; 6353 6354 // if any line was wrapped, we can't use it. 6355 // but it's ok for the last line not to have a newline 6356 6357 for (int i = 0; i < n - 1; i++) { 6358 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 6359 return -1; 6360 } 6361 6362 for (int i = 0; i < n; i++) { 6363 max = Math.max(max, layout.getLineWidth(i)); 6364 } 6365 6366 return (int) FloatMath.ceil(max); 6367 } 6368 6369 /** 6370 * Set whether the TextView includes extra top and bottom padding to make 6371 * room for accents that go above the normal ascent and descent. 6372 * The default is true. 6373 * 6374 * @attr ref android.R.styleable#TextView_includeFontPadding 6375 */ 6376 public void setIncludeFontPadding(boolean includepad) { 6377 if (mIncludePad != includepad) { 6378 mIncludePad = includepad; 6379 6380 if (mLayout != null) { 6381 nullLayouts(); 6382 requestLayout(); 6383 invalidate(); 6384 } 6385 } 6386 } 6387 6388 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 6389 6390 @Override 6391 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6392 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6393 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6394 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6395 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6396 6397 int width; 6398 int height; 6399 6400 BoringLayout.Metrics boring = UNKNOWN_BORING; 6401 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 6402 6403 if (mTextDir == null) { 6404 resolveTextDirection(); 6405 } 6406 6407 int des = -1; 6408 boolean fromexisting = false; 6409 6410 if (widthMode == MeasureSpec.EXACTLY) { 6411 // Parent has told us how big to be. So be it. 6412 width = widthSize; 6413 } else { 6414 if (mLayout != null && mEllipsize == null) { 6415 des = desired(mLayout); 6416 } 6417 6418 if (des < 0) { 6419 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6420 if (boring != null) { 6421 mBoring = boring; 6422 } 6423 } else { 6424 fromexisting = true; 6425 } 6426 6427 if (boring == null || boring == UNKNOWN_BORING) { 6428 if (des < 0) { 6429 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 6430 } 6431 6432 width = des; 6433 } else { 6434 width = boring.width; 6435 } 6436 6437 final Drawables dr = mDrawables; 6438 if (dr != null) { 6439 width = Math.max(width, dr.mDrawableWidthTop); 6440 width = Math.max(width, dr.mDrawableWidthBottom); 6441 } 6442 6443 if (mHint != null) { 6444 int hintDes = -1; 6445 int hintWidth; 6446 6447 if (mHintLayout != null && mEllipsize == null) { 6448 hintDes = desired(mHintLayout); 6449 } 6450 6451 if (hintDes < 0) { 6452 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 6453 if (hintBoring != null) { 6454 mHintBoring = hintBoring; 6455 } 6456 } 6457 6458 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 6459 if (hintDes < 0) { 6460 hintDes = (int) FloatMath.ceil( 6461 Layout.getDesiredWidth(mHint, mTextPaint)); 6462 } 6463 6464 hintWidth = hintDes; 6465 } else { 6466 hintWidth = hintBoring.width; 6467 } 6468 6469 if (hintWidth > width) { 6470 width = hintWidth; 6471 } 6472 } 6473 6474 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 6475 6476 if (mMaxWidthMode == EMS) { 6477 width = Math.min(width, mMaxWidth * getLineHeight()); 6478 } else { 6479 width = Math.min(width, mMaxWidth); 6480 } 6481 6482 if (mMinWidthMode == EMS) { 6483 width = Math.max(width, mMinWidth * getLineHeight()); 6484 } else { 6485 width = Math.max(width, mMinWidth); 6486 } 6487 6488 // Check against our minimum width 6489 width = Math.max(width, getSuggestedMinimumWidth()); 6490 6491 if (widthMode == MeasureSpec.AT_MOST) { 6492 width = Math.min(widthSize, width); 6493 } 6494 } 6495 6496 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6497 int unpaddedWidth = want; 6498 6499 if (mHorizontallyScrolling) want = VERY_WIDE; 6500 6501 int hintWant = want; 6502 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 6503 6504 if (mLayout == null) { 6505 makeNewLayout(want, hintWant, boring, hintBoring, 6506 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6507 } else { 6508 final boolean layoutChanged = (mLayout.getWidth() != want) || 6509 (hintWidth != hintWant) || 6510 (mLayout.getEllipsizedWidth() != 6511 width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6512 6513 final boolean widthChanged = (mHint == null) && 6514 (mEllipsize == null) && 6515 (want > mLayout.getWidth()) && 6516 (mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want)); 6517 6518 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 6519 6520 if (layoutChanged || maximumChanged) { 6521 if (!maximumChanged && widthChanged) { 6522 mLayout.increaseWidthTo(want); 6523 } else { 6524 makeNewLayout(want, hintWant, boring, hintBoring, 6525 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6526 } 6527 } else { 6528 // Nothing has changed 6529 } 6530 } 6531 6532 if (heightMode == MeasureSpec.EXACTLY) { 6533 // Parent has told us how big to be. So be it. 6534 height = heightSize; 6535 mDesiredHeightAtMeasure = -1; 6536 } else { 6537 int desired = getDesiredHeight(); 6538 6539 height = desired; 6540 mDesiredHeightAtMeasure = desired; 6541 6542 if (heightMode == MeasureSpec.AT_MOST) { 6543 height = Math.min(desired, heightSize); 6544 } 6545 } 6546 6547 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6548 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 6549 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 6550 } 6551 6552 /* 6553 * We didn't let makeNewLayout() register to bring the cursor into view, 6554 * so do it here if there is any possibility that it is needed. 6555 */ 6556 if (mMovement != null || 6557 mLayout.getWidth() > unpaddedWidth || 6558 mLayout.getHeight() > unpaddedHeight) { 6559 registerForPreDraw(); 6560 } else { 6561 scrollTo(0, 0); 6562 } 6563 6564 setMeasuredDimension(width, height); 6565 } 6566 6567 private int getDesiredHeight() { 6568 return Math.max( 6569 getDesiredHeight(mLayout, true), 6570 getDesiredHeight(mHintLayout, mEllipsize != null)); 6571 } 6572 6573 private int getDesiredHeight(Layout layout, boolean cap) { 6574 if (layout == null) { 6575 return 0; 6576 } 6577 6578 int linecount = layout.getLineCount(); 6579 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 6580 int desired = layout.getLineTop(linecount); 6581 6582 final Drawables dr = mDrawables; 6583 if (dr != null) { 6584 desired = Math.max(desired, dr.mDrawableHeightLeft); 6585 desired = Math.max(desired, dr.mDrawableHeightRight); 6586 } 6587 6588 desired += pad; 6589 6590 if (mMaxMode == LINES) { 6591 /* 6592 * Don't cap the hint to a certain number of lines. 6593 * (Do cap it, though, if we have a maximum pixel height.) 6594 */ 6595 if (cap) { 6596 if (linecount > mMaximum) { 6597 desired = layout.getLineTop(mMaximum); 6598 6599 if (dr != null) { 6600 desired = Math.max(desired, dr.mDrawableHeightLeft); 6601 desired = Math.max(desired, dr.mDrawableHeightRight); 6602 } 6603 6604 desired += pad; 6605 linecount = mMaximum; 6606 } 6607 } 6608 } else { 6609 desired = Math.min(desired, mMaximum); 6610 } 6611 6612 if (mMinMode == LINES) { 6613 if (linecount < mMinimum) { 6614 desired += getLineHeight() * (mMinimum - linecount); 6615 } 6616 } else { 6617 desired = Math.max(desired, mMinimum); 6618 } 6619 6620 // Check against our minimum height 6621 desired = Math.max(desired, getSuggestedMinimumHeight()); 6622 6623 return desired; 6624 } 6625 6626 /** 6627 * Check whether a change to the existing text layout requires a 6628 * new view layout. 6629 */ 6630 private void checkForResize() { 6631 boolean sizeChanged = false; 6632 6633 if (mLayout != null) { 6634 // Check if our width changed 6635 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6636 sizeChanged = true; 6637 invalidate(); 6638 } 6639 6640 // Check if our height changed 6641 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6642 int desiredHeight = getDesiredHeight(); 6643 6644 if (desiredHeight != this.getHeight()) { 6645 sizeChanged = true; 6646 } 6647 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6648 if (mDesiredHeightAtMeasure >= 0) { 6649 int desiredHeight = getDesiredHeight(); 6650 6651 if (desiredHeight != mDesiredHeightAtMeasure) { 6652 sizeChanged = true; 6653 } 6654 } 6655 } 6656 } 6657 6658 if (sizeChanged) { 6659 requestLayout(); 6660 // caller will have already invalidated 6661 } 6662 } 6663 6664 /** 6665 * Check whether entirely new text requires a new view layout 6666 * or merely a new text layout. 6667 */ 6668 private void checkForRelayout() { 6669 // If we have a fixed width, we can just swap in a new text layout 6670 // if the text height stays the same or if the view height is fixed. 6671 6672 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6673 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6674 (mHint == null || mHintLayout != null) && 6675 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6676 // Static width, so try making a new text layout. 6677 6678 int oldht = mLayout.getHeight(); 6679 int want = mLayout.getWidth(); 6680 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6681 6682 /* 6683 * No need to bring the text into view, since the size is not 6684 * changing (unless we do the requestLayout(), in which case it 6685 * will happen at measure). 6686 */ 6687 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6688 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6689 false); 6690 6691 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6692 // In a fixed-height view, so use our new text layout. 6693 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6694 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6695 invalidate(); 6696 return; 6697 } 6698 6699 // Dynamic height, but height has stayed the same, 6700 // so use our new text layout. 6701 if (mLayout.getHeight() == oldht && 6702 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6703 invalidate(); 6704 return; 6705 } 6706 } 6707 6708 // We lose: the height has changed and we have a dynamic height. 6709 // Request a new view layout using our new text layout. 6710 requestLayout(); 6711 invalidate(); 6712 } else { 6713 // Dynamic width, so we have no choice but to request a new 6714 // view layout with a new text layout. 6715 nullLayouts(); 6716 requestLayout(); 6717 invalidate(); 6718 } 6719 } 6720 6721 /** 6722 * Returns true if anything changed. 6723 */ 6724 private boolean bringTextIntoView() { 6725 int line = 0; 6726 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6727 line = mLayout.getLineCount() - 1; 6728 } 6729 6730 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6731 int dir = mLayout.getParagraphDirection(line); 6732 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6733 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6734 int ht = mLayout.getHeight(); 6735 6736 int scrollx, scrolly; 6737 6738 // Convert to left, center, or right alignment. 6739 if (a == Layout.Alignment.ALIGN_NORMAL) { 6740 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT : 6741 Layout.Alignment.ALIGN_RIGHT; 6742 } else if (a == Layout.Alignment.ALIGN_OPPOSITE){ 6743 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT : 6744 Layout.Alignment.ALIGN_LEFT; 6745 } 6746 6747 if (a == Layout.Alignment.ALIGN_CENTER) { 6748 /* 6749 * Keep centered if possible, or, if it is too wide to fit, 6750 * keep leading edge in view. 6751 */ 6752 6753 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6754 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6755 6756 if (right - left < hspace) { 6757 scrollx = (right + left) / 2 - hspace / 2; 6758 } else { 6759 if (dir < 0) { 6760 scrollx = right - hspace; 6761 } else { 6762 scrollx = left; 6763 } 6764 } 6765 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 6766 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6767 scrollx = right - hspace; 6768 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 6769 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6770 } 6771 6772 if (ht < vspace) { 6773 scrolly = 0; 6774 } else { 6775 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6776 scrolly = ht - vspace; 6777 } else { 6778 scrolly = 0; 6779 } 6780 } 6781 6782 if (scrollx != mScrollX || scrolly != mScrollY) { 6783 scrollTo(scrollx, scrolly); 6784 return true; 6785 } else { 6786 return false; 6787 } 6788 } 6789 6790 /** 6791 * Move the point, specified by the offset, into the view if it is needed. 6792 * This has to be called after layout. Returns true if anything changed. 6793 */ 6794 public boolean bringPointIntoView(int offset) { 6795 boolean changed = false; 6796 6797 if (mLayout == null) return changed; 6798 6799 int line = mLayout.getLineForOffset(offset); 6800 6801 // FIXME: Is it okay to truncate this, or should we round? 6802 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6803 final int top = mLayout.getLineTop(line); 6804 final int bottom = mLayout.getLineTop(line + 1); 6805 6806 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6807 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6808 int ht = mLayout.getHeight(); 6809 6810 int grav; 6811 6812 switch (mLayout.getParagraphAlignment(line)) { 6813 case ALIGN_LEFT: 6814 grav = 1; 6815 break; 6816 case ALIGN_RIGHT: 6817 grav = -1; 6818 break; 6819 case ALIGN_NORMAL: 6820 grav = mLayout.getParagraphDirection(line); 6821 break; 6822 case ALIGN_OPPOSITE: 6823 grav = -mLayout.getParagraphDirection(line); 6824 break; 6825 case ALIGN_CENTER: 6826 default: 6827 grav = 0; 6828 break; 6829 } 6830 6831 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6832 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6833 6834 int hslack = (bottom - top) / 2; 6835 int vslack = hslack; 6836 6837 if (vslack > vspace / 4) 6838 vslack = vspace / 4; 6839 if (hslack > hspace / 4) 6840 hslack = hspace / 4; 6841 6842 int hs = mScrollX; 6843 int vs = mScrollY; 6844 6845 if (top - vs < vslack) 6846 vs = top - vslack; 6847 if (bottom - vs > vspace - vslack) 6848 vs = bottom - (vspace - vslack); 6849 if (ht - vs < vspace) 6850 vs = ht - vspace; 6851 if (0 - vs > 0) 6852 vs = 0; 6853 6854 if (grav != 0) { 6855 if (x - hs < hslack) { 6856 hs = x - hslack; 6857 } 6858 if (x - hs > hspace - hslack) { 6859 hs = x - (hspace - hslack); 6860 } 6861 } 6862 6863 if (grav < 0) { 6864 if (left - hs > 0) 6865 hs = left; 6866 if (right - hs < hspace) 6867 hs = right - hspace; 6868 } else if (grav > 0) { 6869 if (right - hs < hspace) 6870 hs = right - hspace; 6871 if (left - hs > 0) 6872 hs = left; 6873 } else /* grav == 0 */ { 6874 if (right - left <= hspace) { 6875 /* 6876 * If the entire text fits, center it exactly. 6877 */ 6878 hs = left - (hspace - (right - left)) / 2; 6879 } else if (x > right - hslack) { 6880 /* 6881 * If we are near the right edge, keep the right edge 6882 * at the edge of the view. 6883 */ 6884 hs = right - hspace; 6885 } else if (x < left + hslack) { 6886 /* 6887 * If we are near the left edge, keep the left edge 6888 * at the edge of the view. 6889 */ 6890 hs = left; 6891 } else if (left > hs) { 6892 /* 6893 * Is there whitespace visible at the left? Fix it if so. 6894 */ 6895 hs = left; 6896 } else if (right < hs + hspace) { 6897 /* 6898 * Is there whitespace visible at the right? Fix it if so. 6899 */ 6900 hs = right - hspace; 6901 } else { 6902 /* 6903 * Otherwise, float as needed. 6904 */ 6905 if (x - hs < hslack) { 6906 hs = x - hslack; 6907 } 6908 if (x - hs > hspace - hslack) { 6909 hs = x - (hspace - hslack); 6910 } 6911 } 6912 } 6913 6914 if (hs != mScrollX || vs != mScrollY) { 6915 if (mScroller == null) { 6916 scrollTo(hs, vs); 6917 } else { 6918 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6919 int dx = hs - mScrollX; 6920 int dy = vs - mScrollY; 6921 6922 if (duration > ANIMATED_SCROLL_GAP) { 6923 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6924 awakenScrollBars(mScroller.getDuration()); 6925 invalidate(); 6926 } else { 6927 if (!mScroller.isFinished()) { 6928 mScroller.abortAnimation(); 6929 } 6930 6931 scrollBy(dx, dy); 6932 } 6933 6934 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6935 } 6936 6937 changed = true; 6938 } 6939 6940 if (isFocused()) { 6941 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6942 // requestRectangleOnScreen() is in terms of content coordinates. 6943 6944 if (mTempRect == null) mTempRect = new Rect(); 6945 // The offsets here are to ensure the rectangle we are using is 6946 // within our view bounds, in case the cursor is on the far left 6947 // or right. If it isn't withing the bounds, then this request 6948 // will be ignored. 6949 mTempRect.set(x - 2, top, x + 2, bottom); 6950 getInterestingRect(mTempRect, line); 6951 mTempRect.offset(mScrollX, mScrollY); 6952 6953 if (requestRectangleOnScreen(mTempRect)) { 6954 changed = true; 6955 } 6956 } 6957 6958 return changed; 6959 } 6960 6961 /** 6962 * Move the cursor, if needed, so that it is at an offset that is visible 6963 * to the user. This will not move the cursor if it represents more than 6964 * one character (a selection range). This will only work if the 6965 * TextView contains spannable text; otherwise it will do nothing. 6966 * 6967 * @return True if the cursor was actually moved, false otherwise. 6968 */ 6969 public boolean moveCursorToVisibleOffset() { 6970 if (!(mText instanceof Spannable)) { 6971 return false; 6972 } 6973 int start = getSelectionStart(); 6974 int end = getSelectionEnd(); 6975 if (start != end) { 6976 return false; 6977 } 6978 6979 // First: make sure the line is visible on screen: 6980 6981 int line = mLayout.getLineForOffset(start); 6982 6983 final int top = mLayout.getLineTop(line); 6984 final int bottom = mLayout.getLineTop(line + 1); 6985 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6986 int vslack = (bottom - top) / 2; 6987 if (vslack > vspace / 4) 6988 vslack = vspace / 4; 6989 final int vs = mScrollY; 6990 6991 if (top < (vs+vslack)) { 6992 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6993 } else if (bottom > (vspace+vs-vslack)) { 6994 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6995 } 6996 6997 // Next: make sure the character is visible on screen: 6998 6999 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 7000 final int hs = mScrollX; 7001 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 7002 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 7003 7004 // line might contain bidirectional text 7005 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 7006 final int highChar = leftChar > rightChar ? leftChar : rightChar; 7007 7008 int newStart = start; 7009 if (newStart < lowChar) { 7010 newStart = lowChar; 7011 } else if (newStart > highChar) { 7012 newStart = highChar; 7013 } 7014 7015 if (newStart != start) { 7016 Selection.setSelection((Spannable)mText, newStart); 7017 return true; 7018 } 7019 7020 return false; 7021 } 7022 7023 @Override 7024 public void computeScroll() { 7025 if (mScroller != null) { 7026 if (mScroller.computeScrollOffset()) { 7027 mScrollX = mScroller.getCurrX(); 7028 mScrollY = mScroller.getCurrY(); 7029 invalidateParentCaches(); 7030 postInvalidate(); // So we draw again 7031 } 7032 } 7033 } 7034 7035 private void getInterestingRect(Rect r, int line) { 7036 convertFromViewportToContentCoordinates(r); 7037 7038 // Rectangle can can be expanded on first and last line to take 7039 // padding into account. 7040 // TODO Take left/right padding into account too? 7041 if (line == 0) r.top -= getExtendedPaddingTop(); 7042 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 7043 } 7044 7045 private void convertFromViewportToContentCoordinates(Rect r) { 7046 final int horizontalOffset = viewportToContentHorizontalOffset(); 7047 r.left += horizontalOffset; 7048 r.right += horizontalOffset; 7049 7050 final int verticalOffset = viewportToContentVerticalOffset(); 7051 r.top += verticalOffset; 7052 r.bottom += verticalOffset; 7053 } 7054 7055 private int viewportToContentHorizontalOffset() { 7056 return getCompoundPaddingLeft() - mScrollX; 7057 } 7058 7059 private int viewportToContentVerticalOffset() { 7060 int offset = getExtendedPaddingTop() - mScrollY; 7061 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7062 offset += getVerticalOffset(false); 7063 } 7064 return offset; 7065 } 7066 7067 @Override 7068 public void debug(int depth) { 7069 super.debug(depth); 7070 7071 String output = debugIndent(depth); 7072 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 7073 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 7074 + "} "; 7075 7076 if (mText != null) { 7077 7078 output += "mText=\"" + mText + "\" "; 7079 if (mLayout != null) { 7080 output += "mLayout width=" + mLayout.getWidth() 7081 + " height=" + mLayout.getHeight(); 7082 } 7083 } else { 7084 output += "mText=NULL"; 7085 } 7086 Log.d(VIEW_LOG_TAG, output); 7087 } 7088 7089 /** 7090 * Convenience for {@link Selection#getSelectionStart}. 7091 */ 7092 @ViewDebug.ExportedProperty(category = "text") 7093 public int getSelectionStart() { 7094 return Selection.getSelectionStart(getText()); 7095 } 7096 7097 /** 7098 * Convenience for {@link Selection#getSelectionEnd}. 7099 */ 7100 @ViewDebug.ExportedProperty(category = "text") 7101 public int getSelectionEnd() { 7102 return Selection.getSelectionEnd(getText()); 7103 } 7104 7105 /** 7106 * Return true iff there is a selection inside this text view. 7107 */ 7108 public boolean hasSelection() { 7109 final int selectionStart = getSelectionStart(); 7110 final int selectionEnd = getSelectionEnd(); 7111 7112 return selectionStart >= 0 && selectionStart != selectionEnd; 7113 } 7114 7115 /** 7116 * Sets the properties of this field (lines, horizontally scrolling, 7117 * transformation method) to be for a single-line input. 7118 * 7119 * @attr ref android.R.styleable#TextView_singleLine 7120 */ 7121 public void setSingleLine() { 7122 setSingleLine(true); 7123 } 7124 7125 /** 7126 * Sets the properties of this field to transform input to ALL CAPS 7127 * display. This may use a "small caps" formatting if available. 7128 * This setting will be ignored if this field is editable or selectable. 7129 * 7130 * This call replaces the current transformation method. Disabling this 7131 * will not necessarily restore the previous behavior from before this 7132 * was enabled. 7133 * 7134 * @see #setTransformationMethod(TransformationMethod) 7135 * @attr ref android.R.styleable#TextView_textAllCaps 7136 */ 7137 public void setAllCaps(boolean allCaps) { 7138 if (allCaps) { 7139 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 7140 } else { 7141 setTransformationMethod(null); 7142 } 7143 } 7144 7145 /** 7146 * If true, sets the properties of this field (number of lines, horizontally scrolling, 7147 * transformation method) to be for a single-line input; if false, restores these to the default 7148 * conditions. 7149 * 7150 * Note that the default conditions are not necessarily those that were in effect prior this 7151 * method, and you may want to reset these properties to your custom values. 7152 * 7153 * @attr ref android.R.styleable#TextView_singleLine 7154 */ 7155 @android.view.RemotableViewMethod 7156 public void setSingleLine(boolean singleLine) { 7157 // Could be used, but may break backward compatibility. 7158 // if (mSingleLine == singleLine) return; 7159 setInputTypeSingleLine(singleLine); 7160 applySingleLine(singleLine, true, true); 7161 } 7162 7163 /** 7164 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 7165 * @param singleLine 7166 */ 7167 private void setInputTypeSingleLine(boolean singleLine) { 7168 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 7169 if (singleLine) { 7170 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7171 } else { 7172 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7173 } 7174 } 7175 } 7176 7177 private void applySingleLine(boolean singleLine, boolean applyTransformation, 7178 boolean changeMaxLines) { 7179 mSingleLine = singleLine; 7180 if (singleLine) { 7181 setLines(1); 7182 setHorizontallyScrolling(true); 7183 if (applyTransformation) { 7184 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 7185 } 7186 } else { 7187 if (changeMaxLines) { 7188 setMaxLines(Integer.MAX_VALUE); 7189 } 7190 setHorizontallyScrolling(false); 7191 if (applyTransformation) { 7192 setTransformationMethod(null); 7193 } 7194 } 7195 } 7196 7197 /** 7198 * Causes words in the text that are longer than the view is wide 7199 * to be ellipsized instead of broken in the middle. You may also 7200 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 7201 * to constrain the text to a single line. Use <code>null</code> 7202 * to turn off ellipsizing. 7203 * 7204 * If {@link #setMaxLines} has been used to set two or more lines, 7205 * {@link android.text.TextUtils.TruncateAt#END} and 7206 * {@link android.text.TextUtils.TruncateAt#MARQUEE}* are only supported 7207 * (other ellipsizing types will not do anything). 7208 * 7209 * @attr ref android.R.styleable#TextView_ellipsize 7210 */ 7211 public void setEllipsize(TextUtils.TruncateAt where) { 7212 // TruncateAt is an enum. != comparison is ok between these singleton objects. 7213 if (mEllipsize != where) { 7214 mEllipsize = where; 7215 7216 if (mLayout != null) { 7217 nullLayouts(); 7218 requestLayout(); 7219 invalidate(); 7220 } 7221 } 7222 } 7223 7224 /** 7225 * Sets how many times to repeat the marquee animation. Only applied if the 7226 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 7227 * 7228 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7229 */ 7230 public void setMarqueeRepeatLimit(int marqueeLimit) { 7231 mMarqueeRepeatLimit = marqueeLimit; 7232 } 7233 7234 /** 7235 * Returns where, if anywhere, words that are longer than the view 7236 * is wide should be ellipsized. 7237 */ 7238 @ViewDebug.ExportedProperty 7239 public TextUtils.TruncateAt getEllipsize() { 7240 return mEllipsize; 7241 } 7242 7243 /** 7244 * Set the TextView so that when it takes focus, all the text is 7245 * selected. 7246 * 7247 * @attr ref android.R.styleable#TextView_selectAllOnFocus 7248 */ 7249 @android.view.RemotableViewMethod 7250 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 7251 mSelectAllOnFocus = selectAllOnFocus; 7252 7253 if (selectAllOnFocus && !(mText instanceof Spannable)) { 7254 setText(mText, BufferType.SPANNABLE); 7255 } 7256 } 7257 7258 /** 7259 * Set whether the cursor is visible. The default is true. 7260 * 7261 * @attr ref android.R.styleable#TextView_cursorVisible 7262 */ 7263 @android.view.RemotableViewMethod 7264 public void setCursorVisible(boolean visible) { 7265 if (mCursorVisible != visible) { 7266 mCursorVisible = visible; 7267 invalidate(); 7268 7269 makeBlink(); 7270 7271 // InsertionPointCursorController depends on mCursorVisible 7272 prepareCursorControllers(); 7273 } 7274 } 7275 7276 private boolean isCursorVisible() { 7277 return mCursorVisible && isTextEditable(); 7278 } 7279 7280 private boolean canMarquee() { 7281 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 7282 return width > 0 && (mLayout.getLineWidth(0) > width || 7283 (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null && 7284 mSavedMarqueeModeLayout.getLineWidth(0) > width)); 7285 } 7286 7287 private void startMarquee() { 7288 // Do not ellipsize EditText 7289 if (mInput != null) return; 7290 7291 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 7292 return; 7293 } 7294 7295 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 7296 getLineCount() == 1 && canMarquee()) { 7297 7298 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7299 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 7300 final Layout tmp = mLayout; 7301 mLayout = mSavedMarqueeModeLayout; 7302 mSavedMarqueeModeLayout = tmp; 7303 setHorizontalFadingEdgeEnabled(true); 7304 requestLayout(); 7305 invalidate(); 7306 } 7307 7308 if (mMarquee == null) mMarquee = new Marquee(this); 7309 mMarquee.start(mMarqueeRepeatLimit); 7310 } 7311 } 7312 7313 private void stopMarquee() { 7314 if (mMarquee != null && !mMarquee.isStopped()) { 7315 mMarquee.stop(); 7316 } 7317 7318 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 7319 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 7320 final Layout tmp = mSavedMarqueeModeLayout; 7321 mSavedMarqueeModeLayout = mLayout; 7322 mLayout = tmp; 7323 setHorizontalFadingEdgeEnabled(false); 7324 requestLayout(); 7325 invalidate(); 7326 } 7327 } 7328 7329 private void startStopMarquee(boolean start) { 7330 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7331 if (start) { 7332 startMarquee(); 7333 } else { 7334 stopMarquee(); 7335 } 7336 } 7337 } 7338 7339 private static final class Marquee extends Handler { 7340 // TODO: Add an option to configure this 7341 private static final float MARQUEE_DELTA_MAX = 0.07f; 7342 private static final int MARQUEE_DELAY = 1200; 7343 private static final int MARQUEE_RESTART_DELAY = 1200; 7344 private static final int MARQUEE_RESOLUTION = 1000 / 30; 7345 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 7346 7347 private static final byte MARQUEE_STOPPED = 0x0; 7348 private static final byte MARQUEE_STARTING = 0x1; 7349 private static final byte MARQUEE_RUNNING = 0x2; 7350 7351 private static final int MESSAGE_START = 0x1; 7352 private static final int MESSAGE_TICK = 0x2; 7353 private static final int MESSAGE_RESTART = 0x3; 7354 7355 private final WeakReference<TextView> mView; 7356 7357 private byte mStatus = MARQUEE_STOPPED; 7358 private final float mScrollUnit; 7359 private float mMaxScroll; 7360 float mMaxFadeScroll; 7361 private float mGhostStart; 7362 private float mGhostOffset; 7363 private float mFadeStop; 7364 private int mRepeatLimit; 7365 7366 float mScroll; 7367 7368 Marquee(TextView v) { 7369 final float density = v.getContext().getResources().getDisplayMetrics().density; 7370 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 7371 mView = new WeakReference<TextView>(v); 7372 } 7373 7374 @Override 7375 public void handleMessage(Message msg) { 7376 switch (msg.what) { 7377 case MESSAGE_START: 7378 mStatus = MARQUEE_RUNNING; 7379 tick(); 7380 break; 7381 case MESSAGE_TICK: 7382 tick(); 7383 break; 7384 case MESSAGE_RESTART: 7385 if (mStatus == MARQUEE_RUNNING) { 7386 if (mRepeatLimit >= 0) { 7387 mRepeatLimit--; 7388 } 7389 start(mRepeatLimit); 7390 } 7391 break; 7392 } 7393 } 7394 7395 void tick() { 7396 if (mStatus != MARQUEE_RUNNING) { 7397 return; 7398 } 7399 7400 removeMessages(MESSAGE_TICK); 7401 7402 final TextView textView = mView.get(); 7403 if (textView != null && (textView.isFocused() || textView.isSelected())) { 7404 mScroll += mScrollUnit; 7405 if (mScroll > mMaxScroll) { 7406 mScroll = mMaxScroll; 7407 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 7408 } else { 7409 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 7410 } 7411 textView.invalidate(); 7412 } 7413 } 7414 7415 void stop() { 7416 mStatus = MARQUEE_STOPPED; 7417 removeMessages(MESSAGE_START); 7418 removeMessages(MESSAGE_RESTART); 7419 removeMessages(MESSAGE_TICK); 7420 resetScroll(); 7421 } 7422 7423 private void resetScroll() { 7424 mScroll = 0.0f; 7425 final TextView textView = mView.get(); 7426 if (textView != null) textView.invalidate(); 7427 } 7428 7429 void start(int repeatLimit) { 7430 if (repeatLimit == 0) { 7431 stop(); 7432 return; 7433 } 7434 mRepeatLimit = repeatLimit; 7435 final TextView textView = mView.get(); 7436 if (textView != null && textView.mLayout != null) { 7437 mStatus = MARQUEE_STARTING; 7438 mScroll = 0.0f; 7439 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 7440 textView.getCompoundPaddingRight(); 7441 final float lineWidth = textView.mLayout.getLineWidth(0); 7442 final float gap = textWidth / 3.0f; 7443 mGhostStart = lineWidth - textWidth + gap; 7444 mMaxScroll = mGhostStart + textWidth; 7445 mGhostOffset = lineWidth + gap; 7446 mFadeStop = lineWidth + textWidth / 6.0f; 7447 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 7448 7449 textView.invalidate(); 7450 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 7451 } 7452 } 7453 7454 float getGhostOffset() { 7455 return mGhostOffset; 7456 } 7457 7458 boolean shouldDrawLeftFade() { 7459 return mScroll <= mFadeStop; 7460 } 7461 7462 boolean shouldDrawGhost() { 7463 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 7464 } 7465 7466 boolean isRunning() { 7467 return mStatus == MARQUEE_RUNNING; 7468 } 7469 7470 boolean isStopped() { 7471 return mStatus == MARQUEE_STOPPED; 7472 } 7473 } 7474 7475 /** 7476 * This method is called when the text is changed, in case any subclasses 7477 * would like to know. 7478 * 7479 * Within <code>text</code>, the <code>lengthAfter</code> characters 7480 * beginning at <code>start</code> have just replaced old text that had 7481 * length <code>lengthBefore</code>. It is an error to attempt to make 7482 * changes to <code>text</code> from this callback. 7483 * 7484 * @param text The text the TextView is displaying 7485 * @param start The offset of the start of the range of the text that was 7486 * modified 7487 * @param lengthBefore The length of the former text that has been replaced 7488 * @param lengthAfter The length of the replacement modified text 7489 */ 7490 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 7491 // intentionally empty, template pattern method can be overridden by subclasses 7492 } 7493 7494 /** 7495 * This method is called when the selection has changed, in case any 7496 * subclasses would like to know. 7497 * 7498 * @param selStart The new selection start location. 7499 * @param selEnd The new selection end location. 7500 */ 7501 protected void onSelectionChanged(int selStart, int selEnd) { 7502 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 7503 } 7504 7505 /** 7506 * Adds a TextWatcher to the list of those whose methods are called 7507 * whenever this TextView's text changes. 7508 * <p> 7509 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 7510 * not called after {@link #setText} calls. Now, doing {@link #setText} 7511 * if there are any text changed listeners forces the buffer type to 7512 * Editable if it would not otherwise be and does call this method. 7513 */ 7514 public void addTextChangedListener(TextWatcher watcher) { 7515 if (mListeners == null) { 7516 mListeners = new ArrayList<TextWatcher>(); 7517 } 7518 7519 mListeners.add(watcher); 7520 } 7521 7522 /** 7523 * Removes the specified TextWatcher from the list of those whose 7524 * methods are called 7525 * whenever this TextView's text changes. 7526 */ 7527 public void removeTextChangedListener(TextWatcher watcher) { 7528 if (mListeners != null) { 7529 int i = mListeners.indexOf(watcher); 7530 7531 if (i >= 0) { 7532 mListeners.remove(i); 7533 } 7534 } 7535 } 7536 7537 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 7538 if (mListeners != null) { 7539 final ArrayList<TextWatcher> list = mListeners; 7540 final int count = list.size(); 7541 for (int i = 0; i < count; i++) { 7542 list.get(i).beforeTextChanged(text, start, before, after); 7543 } 7544 } 7545 7546 // The spans that are inside or intersect the modified region no longer make sense 7547 removeIntersectingSpans(start, start + before, SpellCheckSpan.class); 7548 removeIntersectingSpans(start, start + before, SuggestionSpan.class); 7549 } 7550 7551 // Removes all spans that are inside or actually overlap the start..end range 7552 private <T> void removeIntersectingSpans(int start, int end, Class<T> type) { 7553 if (!(mText instanceof Editable)) return; 7554 Editable text = (Editable) mText; 7555 7556 T[] spans = text.getSpans(start, end, type); 7557 final int length = spans.length; 7558 for (int i = 0; i < length; i++) { 7559 final int s = text.getSpanStart(spans[i]); 7560 final int e = text.getSpanEnd(spans[i]); 7561 // Spans that are adjacent to the edited region will be handled in 7562 // updateSpellCheckSpans. Result depends on what will be added (space or text) 7563 if (e == start || s == end) break; 7564 text.removeSpan(spans[i]); 7565 } 7566 } 7567 7568 /** 7569 * Not private so it can be called from an inner class without going 7570 * through a thunk. 7571 */ 7572 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 7573 if (mListeners != null) { 7574 final ArrayList<TextWatcher> list = mListeners; 7575 final int count = list.size(); 7576 for (int i = 0; i < count; i++) { 7577 list.get(i).onTextChanged(text, start, before, after); 7578 } 7579 } 7580 } 7581 7582 /** 7583 * Not private so it can be called from an inner class without going 7584 * through a thunk. 7585 */ 7586 void sendAfterTextChanged(Editable text) { 7587 if (mListeners != null) { 7588 final ArrayList<TextWatcher> list = mListeners; 7589 final int count = list.size(); 7590 for (int i = 0; i < count; i++) { 7591 list.get(i).afterTextChanged(text); 7592 } 7593 } 7594 } 7595 7596 /** 7597 * Not private so it can be called from an inner class without going 7598 * through a thunk. 7599 */ 7600 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 7601 final InputMethodState ims = mInputMethodState; 7602 if (ims == null || ims.mBatchEditNesting == 0) { 7603 updateAfterEdit(); 7604 } 7605 if (ims != null) { 7606 ims.mContentChanged = true; 7607 if (ims.mChangedStart < 0) { 7608 ims.mChangedStart = start; 7609 ims.mChangedEnd = start+before; 7610 } else { 7611 ims.mChangedStart = Math.min(ims.mChangedStart, start); 7612 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 7613 } 7614 ims.mChangedDelta += after-before; 7615 } 7616 7617 sendOnTextChanged(buffer, start, before, after); 7618 onTextChanged(buffer, start, before, after); 7619 7620 updateSpellCheckSpans(start, start + after); 7621 7622 // Hide the controllers if the amount of content changed 7623 if (before != after) { 7624 // We do not hide the span controllers, as they can be added when a new text is 7625 // inserted into the text view 7626 hideCursorControllers(); 7627 } 7628 } 7629 7630 /** 7631 * Not private so it can be called from an inner class without going 7632 * through a thunk. 7633 */ 7634 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 7635 // XXX Make the start and end move together if this ends up 7636 // spending too much time invalidating. 7637 7638 boolean selChanged = false; 7639 int newSelStart=-1, newSelEnd=-1; 7640 7641 final InputMethodState ims = mInputMethodState; 7642 7643 if (what == Selection.SELECTION_END) { 7644 mHighlightPathBogus = true; 7645 selChanged = true; 7646 newSelEnd = newStart; 7647 7648 if (!isFocused()) { 7649 mSelectionMoved = true; 7650 } 7651 7652 if (oldStart >= 0 || newStart >= 0) { 7653 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 7654 registerForPreDraw(); 7655 makeBlink(); 7656 } 7657 } 7658 7659 if (what == Selection.SELECTION_START) { 7660 mHighlightPathBogus = true; 7661 selChanged = true; 7662 newSelStart = newStart; 7663 7664 if (!isFocused()) { 7665 mSelectionMoved = true; 7666 } 7667 7668 if (oldStart >= 0 || newStart >= 0) { 7669 int end = Selection.getSelectionEnd(buf); 7670 invalidateCursor(end, oldStart, newStart); 7671 } 7672 } 7673 7674 if (selChanged) { 7675 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 7676 if (newSelStart < 0) { 7677 newSelStart = Selection.getSelectionStart(buf); 7678 } 7679 if (newSelEnd < 0) { 7680 newSelEnd = Selection.getSelectionEnd(buf); 7681 } 7682 onSelectionChanged(newSelStart, newSelEnd); 7683 } 7684 } 7685 7686 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle 7687 || (what instanceof SuggestionSpan && (((SuggestionSpan)what).getFlags() 7688 & SuggestionSpan.FLAG_AUTO_CORRECTION) != 0)) { 7689 if (ims == null || ims.mBatchEditNesting == 0) { 7690 invalidate(); 7691 mHighlightPathBogus = true; 7692 checkForResize(); 7693 } else { 7694 ims.mContentChanged = true; 7695 } 7696 } 7697 7698 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7699 mHighlightPathBogus = true; 7700 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7701 ims.mSelectionModeChanged = true; 7702 } 7703 7704 if (Selection.getSelectionStart(buf) >= 0) { 7705 if (ims == null || ims.mBatchEditNesting == 0) { 7706 invalidateCursor(); 7707 } else { 7708 ims.mCursorChanged = true; 7709 } 7710 } 7711 } 7712 7713 if (what instanceof ParcelableSpan) { 7714 // If this is a span that can be sent to a remote process, 7715 // the current extract editor would be interested in it. 7716 if (ims != null && ims.mExtracting != null) { 7717 if (ims.mBatchEditNesting != 0) { 7718 if (oldStart >= 0) { 7719 if (ims.mChangedStart > oldStart) { 7720 ims.mChangedStart = oldStart; 7721 } 7722 if (ims.mChangedStart > oldEnd) { 7723 ims.mChangedStart = oldEnd; 7724 } 7725 } 7726 if (newStart >= 0) { 7727 if (ims.mChangedStart > newStart) { 7728 ims.mChangedStart = newStart; 7729 } 7730 if (ims.mChangedStart > newEnd) { 7731 ims.mChangedStart = newEnd; 7732 } 7733 } 7734 } else { 7735 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7736 + oldStart + "-" + oldEnd + "," 7737 + newStart + "-" + newEnd + what); 7738 ims.mContentChanged = true; 7739 } 7740 } 7741 } 7742 7743 if (newStart < 0 && what instanceof SpellCheckSpan) { 7744 getSpellChecker().removeSpellCheckSpan((SpellCheckSpan) what); 7745 } 7746 } 7747 7748 /** 7749 * Create new SpellCheckSpans on the modified region. 7750 */ 7751 private void updateSpellCheckSpans(int start, int end) { 7752 if (isTextEditable() && isSuggestionsEnabled()) { 7753 getSpellChecker().spellCheck(start, end); 7754 } 7755 } 7756 7757 /** 7758 * Controls the {@link EasyEditSpan} monitoring when it is added, and when the related 7759 * pop-up should be displayed. 7760 */ 7761 private class EasyEditSpanController { 7762 7763 private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs 7764 7765 private EasyEditPopupWindow mPopupWindow; 7766 7767 private EasyEditSpan mEasyEditSpan; 7768 7769 private Runnable mHidePopup; 7770 7771 private void hide() { 7772 if (mPopupWindow != null) { 7773 mPopupWindow.hide(); 7774 TextView.this.removeCallbacks(mHidePopup); 7775 } 7776 removeSpans(mText); 7777 mEasyEditSpan = null; 7778 } 7779 7780 /** 7781 * Monitors the changes in the text. 7782 * 7783 * <p>{@link ChangeWatcher#onSpanAdded(Spannable, Object, int, int)} cannot be used, 7784 * as the notifications are not sent when a spannable (with spans) is inserted. 7785 */ 7786 public void onTextChange(CharSequence buffer) { 7787 adjustSpans(mText); 7788 7789 if (getWindowVisibility() != View.VISIBLE) { 7790 // The window is not visible yet, ignore the text change. 7791 return; 7792 } 7793 7794 if (mLayout == null) { 7795 // The view has not been layout yet, ignore the text change 7796 return; 7797 } 7798 7799 InputMethodManager imm = InputMethodManager.peekInstance(); 7800 if (!(TextView.this instanceof ExtractEditText) 7801 && imm != null && imm.isFullscreenMode()) { 7802 // The input is in extract mode. We do not have to handle the easy edit in the 7803 // original TextView, as the ExtractEditText will do 7804 return; 7805 } 7806 7807 // Remove the current easy edit span, as the text changed, and remove the pop-up 7808 // (if any) 7809 if (mEasyEditSpan != null) { 7810 if (mText instanceof Spannable) { 7811 ((Spannable) mText).removeSpan(mEasyEditSpan); 7812 } 7813 mEasyEditSpan = null; 7814 } 7815 if (mPopupWindow != null && mPopupWindow.isShowing()) { 7816 mPopupWindow.hide(); 7817 } 7818 7819 // Display the new easy edit span (if any). 7820 if (buffer instanceof Spanned) { 7821 mEasyEditSpan = getSpan((Spanned) buffer); 7822 if (mEasyEditSpan != null) { 7823 if (mPopupWindow == null) { 7824 mPopupWindow = new EasyEditPopupWindow(); 7825 mHidePopup = new Runnable() { 7826 @Override 7827 public void run() { 7828 hide(); 7829 } 7830 }; 7831 } 7832 mPopupWindow.show(mEasyEditSpan); 7833 TextView.this.removeCallbacks(mHidePopup); 7834 TextView.this.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS); 7835 } 7836 } 7837 } 7838 7839 /** 7840 * Adjusts the spans by removing all of them except the last one. 7841 */ 7842 private void adjustSpans(CharSequence buffer) { 7843 // This method enforces that only one easy edit span is attached to the text. 7844 // A better way to enforce this would be to listen for onSpanAdded, but this method 7845 // cannot be used in this scenario as no notification is triggered when a text with 7846 // spans is inserted into a text. 7847 if (buffer instanceof Spannable) { 7848 Spannable spannable = (Spannable) buffer; 7849 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 7850 EasyEditSpan.class); 7851 for (int i = 0; i < spans.length - 1; i++) { 7852 spannable.removeSpan(spans[i]); 7853 } 7854 } 7855 } 7856 7857 /** 7858 * Removes all the {@link EasyEditSpan} currently attached. 7859 */ 7860 private void removeSpans(CharSequence buffer) { 7861 if (buffer instanceof Spannable) { 7862 Spannable spannable = (Spannable) buffer; 7863 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 7864 EasyEditSpan.class); 7865 for (int i = 0; i < spans.length; i++) { 7866 spannable.removeSpan(spans[i]); 7867 } 7868 } 7869 } 7870 7871 private EasyEditSpan getSpan(Spanned spanned) { 7872 EasyEditSpan[] easyEditSpans = spanned.getSpans(0, spanned.length(), 7873 EasyEditSpan.class); 7874 if (easyEditSpans.length == 0) { 7875 return null; 7876 } else { 7877 return easyEditSpans[0]; 7878 } 7879 } 7880 } 7881 7882 /** 7883 * Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled 7884 * by {@link EasyEditSpanController}. 7885 */ 7886 private class EasyEditPopupWindow extends PinnedPopupWindow 7887 implements OnClickListener { 7888 private static final int POPUP_TEXT_LAYOUT = 7889 com.android.internal.R.layout.text_edit_action_popup_text; 7890 private TextView mDeleteTextView; 7891 private EasyEditSpan mEasyEditSpan; 7892 7893 @Override 7894 protected void createPopupWindow() { 7895 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 7896 com.android.internal.R.attr.textSelectHandleWindowStyle); 7897 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 7898 mPopupWindow.setClippingEnabled(true); 7899 } 7900 7901 @Override 7902 protected void initContentView() { 7903 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 7904 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 7905 mContentView = linearLayout; 7906 mContentView.setBackgroundResource( 7907 com.android.internal.R.drawable.text_edit_side_paste_window); 7908 7909 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 7910 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 7911 7912 LayoutParams wrapContent = new LayoutParams( 7913 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 7914 7915 mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 7916 mDeleteTextView.setLayoutParams(wrapContent); 7917 mDeleteTextView.setText(com.android.internal.R.string.delete); 7918 mDeleteTextView.setOnClickListener(this); 7919 mContentView.addView(mDeleteTextView); 7920 } 7921 7922 public void show(EasyEditSpan easyEditSpan) { 7923 mEasyEditSpan = easyEditSpan; 7924 super.show(); 7925 } 7926 7927 @Override 7928 public void onClick(View view) { 7929 if (view == mDeleteTextView) { 7930 deleteText(); 7931 } 7932 } 7933 7934 private void deleteText() { 7935 Editable editable = (Editable) mText; 7936 int start = editable.getSpanStart(mEasyEditSpan); 7937 int end = editable.getSpanEnd(mEasyEditSpan); 7938 if (start >= 0 && end >= 0) { 7939 editable.delete(start, end); 7940 } 7941 } 7942 7943 @Override 7944 protected int getTextOffset() { 7945 // Place the pop-up at the end of the span 7946 Editable editable = (Editable) mText; 7947 return editable.getSpanEnd(mEasyEditSpan); 7948 } 7949 7950 @Override 7951 protected int getVerticalLocalPosition(int line) { 7952 return mLayout.getLineBottom(line); 7953 } 7954 7955 @Override 7956 protected int clipVertically(int positionY) { 7957 // As we display the pop-up below the span, no vertical clipping is required. 7958 return positionY; 7959 } 7960 } 7961 7962 private class ChangeWatcher implements TextWatcher, SpanWatcher { 7963 7964 private CharSequence mBeforeText; 7965 7966 private EasyEditSpanController mEasyEditSpanController; 7967 7968 private ChangeWatcher() { 7969 mEasyEditSpanController = new EasyEditSpanController(); 7970 } 7971 7972 public void beforeTextChanged(CharSequence buffer, int start, 7973 int before, int after) { 7974 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 7975 + " before=" + before + " after=" + after + ": " + buffer); 7976 7977 if (AccessibilityManager.getInstance(mContext).isEnabled() 7978 && !isPasswordInputType(mInputType) 7979 && !hasPasswordTransformationMethod()) { 7980 mBeforeText = buffer.toString(); 7981 } 7982 7983 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 7984 } 7985 7986 public void onTextChanged(CharSequence buffer, int start, 7987 int before, int after) { 7988 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 7989 + " before=" + before + " after=" + after + ": " + buffer); 7990 TextView.this.handleTextChanged(buffer, start, before, after); 7991 7992 mEasyEditSpanController.onTextChange(buffer); 7993 7994 if (AccessibilityManager.getInstance(mContext).isEnabled() && 7995 (isFocused() || isSelected() && isShown())) { 7996 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 7997 mBeforeText = null; 7998 } 7999 } 8000 8001 public void afterTextChanged(Editable buffer) { 8002 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 8003 TextView.this.sendAfterTextChanged(buffer); 8004 8005 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 8006 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 8007 } 8008 } 8009 8010 public void onSpanChanged(Spannable buf, 8011 Object what, int s, int e, int st, int en) { 8012 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 8013 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 8014 TextView.this.spanChange(buf, what, s, st, e, en); 8015 } 8016 8017 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 8018 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 8019 + " what=" + what + ": " + buf); 8020 TextView.this.spanChange(buf, what, -1, s, -1, e); 8021 } 8022 8023 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 8024 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 8025 + " what=" + what + ": " + buf); 8026 TextView.this.spanChange(buf, what, s, -1, e, -1); 8027 } 8028 8029 private void hideControllers() { 8030 mEasyEditSpanController.hide(); 8031 } 8032 } 8033 8034 /** 8035 * @hide 8036 */ 8037 @Override 8038 public void dispatchFinishTemporaryDetach() { 8039 mDispatchTemporaryDetach = true; 8040 super.dispatchFinishTemporaryDetach(); 8041 mDispatchTemporaryDetach = false; 8042 } 8043 8044 @Override 8045 public void onStartTemporaryDetach() { 8046 super.onStartTemporaryDetach(); 8047 // Only track when onStartTemporaryDetach() is called directly, 8048 // usually because this instance is an editable field in a list 8049 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 8050 8051 // Because of View recycling in ListView, there is no easy way to know when a TextView with 8052 // selection becomes visible again. Until a better solution is found, stop text selection 8053 // mode (if any) as soon as this TextView is recycled. 8054 hideControllers(); 8055 } 8056 8057 @Override 8058 public void onFinishTemporaryDetach() { 8059 super.onFinishTemporaryDetach(); 8060 // Only track when onStartTemporaryDetach() is called directly, 8061 // usually because this instance is an editable field in a list 8062 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 8063 } 8064 8065 @Override 8066 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 8067 if (mTemporaryDetach) { 8068 // If we are temporarily in the detach state, then do nothing. 8069 super.onFocusChanged(focused, direction, previouslyFocusedRect); 8070 return; 8071 } 8072 8073 mShowCursor = SystemClock.uptimeMillis(); 8074 8075 ensureEndedBatchEdit(); 8076 8077 if (focused) { 8078 int selStart = getSelectionStart(); 8079 int selEnd = getSelectionEnd(); 8080 8081 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 8082 // mode for these, unless there was a specific selection already started. 8083 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 8084 selEnd == mText.length(); 8085 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 8086 8087 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 8088 // If a tap was used to give focus to that view, move cursor at tap position. 8089 // Has to be done before onTakeFocus, which can be overloaded. 8090 final int lastTapPosition = getLastTapPosition(); 8091 if (lastTapPosition >= 0) { 8092 Selection.setSelection((Spannable) mText, lastTapPosition); 8093 } 8094 8095 if (mMovement != null) { 8096 mMovement.onTakeFocus(this, (Spannable) mText, direction); 8097 } 8098 8099 // The DecorView does not have focus when the 'Done' ExtractEditText button is 8100 // pressed. Since it is the ViewAncestor's mView, it requests focus before 8101 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 8102 // This special case ensure that we keep current selection in that case. 8103 // It would be better to know why the DecorView does not have focus at that time. 8104 if (((this instanceof ExtractEditText) || mSelectionMoved) && 8105 selStart >= 0 && selEnd >= 0) { 8106 /* 8107 * Someone intentionally set the selection, so let them 8108 * do whatever it is that they wanted to do instead of 8109 * the default on-focus behavior. We reset the selection 8110 * here instead of just skipping the onTakeFocus() call 8111 * because some movement methods do something other than 8112 * just setting the selection in theirs and we still 8113 * need to go through that path. 8114 */ 8115 Selection.setSelection((Spannable) mText, selStart, selEnd); 8116 } 8117 8118 if (mSelectAllOnFocus) { 8119 selectAll(); 8120 } 8121 8122 mTouchFocusSelected = true; 8123 } 8124 8125 mFrozenWithFocus = false; 8126 mSelectionMoved = false; 8127 8128 if (mText instanceof Spannable) { 8129 Spannable sp = (Spannable) mText; 8130 MetaKeyKeyListener.resetMetaState(sp); 8131 } 8132 8133 makeBlink(); 8134 8135 if (mError != null) { 8136 showError(); 8137 } 8138 } else { 8139 if (mError != null) { 8140 hideError(); 8141 } 8142 // Don't leave us in the middle of a batch edit. 8143 onEndBatchEdit(); 8144 8145 if (this instanceof ExtractEditText) { 8146 // terminateTextSelectionMode removes selection, which we want to keep when 8147 // ExtractEditText goes out of focus. 8148 final int selStart = getSelectionStart(); 8149 final int selEnd = getSelectionEnd(); 8150 hideControllers(); 8151 Selection.setSelection((Spannable) mText, selStart, selEnd); 8152 } else { 8153 hideControllers(); 8154 downgradeEasyCorrectionSpans(); 8155 } 8156 8157 // No need to create the controller 8158 if (mSelectionModifierCursorController != null) { 8159 mSelectionModifierCursorController.resetTouchOffsets(); 8160 } 8161 } 8162 8163 startStopMarquee(focused); 8164 8165 if (mTransformation != null) { 8166 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 8167 } 8168 8169 super.onFocusChanged(focused, direction, previouslyFocusedRect); 8170 } 8171 8172 private int getLastTapPosition() { 8173 // No need to create the controller at that point, no last tap position saved 8174 if (mSelectionModifierCursorController != null) { 8175 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 8176 if (lastTapPosition >= 0) { 8177 // Safety check, should not be possible. 8178 if (lastTapPosition > mText.length()) { 8179 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 8180 + mText.length() + ")"); 8181 lastTapPosition = mText.length(); 8182 } 8183 return lastTapPosition; 8184 } 8185 } 8186 8187 return -1; 8188 } 8189 8190 @Override 8191 public void onWindowFocusChanged(boolean hasWindowFocus) { 8192 super.onWindowFocusChanged(hasWindowFocus); 8193 8194 if (hasWindowFocus) { 8195 if (mBlink != null) { 8196 mBlink.uncancel(); 8197 makeBlink(); 8198 } 8199 } else { 8200 if (mBlink != null) { 8201 mBlink.cancel(); 8202 } 8203 // Don't leave us in the middle of a batch edit. 8204 onEndBatchEdit(); 8205 if (mInputContentType != null) { 8206 mInputContentType.enterDown = false; 8207 } 8208 8209 hideControllers(); 8210 } 8211 8212 startStopMarquee(hasWindowFocus); 8213 } 8214 8215 @Override 8216 protected void onVisibilityChanged(View changedView, int visibility) { 8217 super.onVisibilityChanged(changedView, visibility); 8218 if (visibility != VISIBLE) { 8219 hideControllers(); 8220 } 8221 } 8222 8223 /** 8224 * Use {@link BaseInputConnection#removeComposingSpans 8225 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 8226 * state from this text view. 8227 */ 8228 public void clearComposingText() { 8229 if (mText instanceof Spannable) { 8230 BaseInputConnection.removeComposingSpans((Spannable)mText); 8231 } 8232 } 8233 8234 @Override 8235 public void setSelected(boolean selected) { 8236 boolean wasSelected = isSelected(); 8237 8238 super.setSelected(selected); 8239 8240 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 8241 if (selected) { 8242 startMarquee(); 8243 } else { 8244 stopMarquee(); 8245 } 8246 } 8247 } 8248 8249 @Override 8250 public boolean onTouchEvent(MotionEvent event) { 8251 final int action = event.getActionMasked(); 8252 8253 if (hasSelectionController()) { 8254 getSelectionController().onTouchEvent(event); 8255 } 8256 8257 if (action == MotionEvent.ACTION_DOWN) { 8258 mLastDownPositionX = event.getX(); 8259 mLastDownPositionY = event.getY(); 8260 8261 // Reset this state; it will be re-set if super.onTouchEvent 8262 // causes focus to move to the view. 8263 mTouchFocusSelected = false; 8264 mIgnoreActionUpEvent = false; 8265 } 8266 8267 final boolean superResult = super.onTouchEvent(event); 8268 8269 /* 8270 * Don't handle the release after a long press, because it will 8271 * move the selection away from whatever the menu action was 8272 * trying to affect. 8273 */ 8274 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 8275 mDiscardNextActionUp = false; 8276 return superResult; 8277 } 8278 8279 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) && 8280 !shouldIgnoreActionUpEvent() && isFocused(); 8281 8282 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 8283 && mText instanceof Spannable && mLayout != null) { 8284 boolean handled = false; 8285 8286 if (mMovement != null) { 8287 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 8288 } 8289 8290 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable) { 8291 // The LinkMovementMethod which should handle taps on links has not been installed 8292 // on non editable text that support text selection. 8293 // We reproduce its behavior here to open links for these. 8294 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 8295 getSelectionEnd(), ClickableSpan.class); 8296 8297 if (links.length != 0) { 8298 links[0].onClick(this); 8299 handled = true; 8300 } 8301 } 8302 8303 if (touchIsFinished && (isTextEditable() || mTextIsSelectable)) { 8304 // Show the IME, except when selecting in read-only text. 8305 final InputMethodManager imm = InputMethodManager.peekInstance(); 8306 viewClicked(imm); 8307 if (!mTextIsSelectable) { 8308 handled |= imm != null && imm.showSoftInput(this, 0); 8309 } 8310 8311 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 8312 hideControllers(); 8313 if (!selectAllGotFocus && mText.length() > 0) { 8314 if (mSpellChecker != null) { 8315 // When the cursor moves, the word that was typed may need spell check 8316 mSpellChecker.onSelectionChanged(); 8317 } 8318 if (isCursorInsideEasyCorrectionSpan()) { 8319 showSuggestions(); 8320 } else if (hasInsertionController()) { 8321 getInsertionController().show(); 8322 } 8323 } 8324 8325 handled = true; 8326 } 8327 8328 if (handled) { 8329 return true; 8330 } 8331 } 8332 8333 return superResult; 8334 } 8335 8336 /** 8337 * @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}. 8338 */ 8339 private boolean isCursorInsideSuggestionSpan() { 8340 if (!(mText instanceof Spannable)) return false; 8341 8342 SuggestionSpan[] suggestionSpans = ((Spannable) mText).getSpans(getSelectionStart(), 8343 getSelectionEnd(), SuggestionSpan.class); 8344 return (suggestionSpans.length > 0); 8345 } 8346 8347 /** 8348 * @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with 8349 * {@link SuggestionSpan#FLAG_EASY_CORRECT} set. 8350 */ 8351 private boolean isCursorInsideEasyCorrectionSpan() { 8352 Spannable spannable = (Spannable) mText; 8353 SuggestionSpan[] suggestionSpans = spannable.getSpans(getSelectionStart(), 8354 getSelectionEnd(), SuggestionSpan.class); 8355 for (int i = 0; i < suggestionSpans.length; i++) { 8356 if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) { 8357 return true; 8358 } 8359 } 8360 return false; 8361 } 8362 8363 /** 8364 * Downgrades to simple suggestions all the easy correction spans that are not a spell check 8365 * span. 8366 */ 8367 private void downgradeEasyCorrectionSpans() { 8368 if (mText instanceof Spannable) { 8369 Spannable spannable = (Spannable) mText; 8370 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, 8371 spannable.length(), SuggestionSpan.class); 8372 for (int i = 0; i < suggestionSpans.length; i++) { 8373 int flags = suggestionSpans[i].getFlags(); 8374 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 8375 && (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) { 8376 flags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 8377 suggestionSpans[i].setFlags(flags); 8378 } 8379 } 8380 } 8381 } 8382 8383 @Override 8384 public boolean onGenericMotionEvent(MotionEvent event) { 8385 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 8386 try { 8387 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 8388 return true; 8389 } 8390 } catch (AbstractMethodError ex) { 8391 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 8392 // Ignore its absence in case third party applications implemented the 8393 // interface directly. 8394 } 8395 } 8396 return super.onGenericMotionEvent(event); 8397 } 8398 8399 private void prepareCursorControllers() { 8400 boolean windowSupportsHandles = false; 8401 8402 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 8403 if (params instanceof WindowManager.LayoutParams) { 8404 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 8405 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 8406 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 8407 } 8408 8409 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 8410 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 8411 mLayout != null; 8412 8413 if (!mInsertionControllerEnabled) { 8414 hideInsertionPointCursorController(); 8415 if (mInsertionPointCursorController != null) { 8416 mInsertionPointCursorController.onDetached(); 8417 mInsertionPointCursorController = null; 8418 } 8419 } 8420 8421 if (!mSelectionControllerEnabled) { 8422 stopSelectionActionMode(); 8423 if (mSelectionModifierCursorController != null) { 8424 mSelectionModifierCursorController.onDetached(); 8425 mSelectionModifierCursorController = null; 8426 } 8427 } 8428 } 8429 8430 /** 8431 * @return True iff this TextView contains a text that can be edited, or if this is 8432 * a selectable TextView. 8433 */ 8434 private boolean isTextEditable() { 8435 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 8436 } 8437 8438 /** 8439 * Returns true, only while processing a touch gesture, if the initial 8440 * touch down event caused focus to move to the text view and as a result 8441 * its selection changed. Only valid while processing the touch gesture 8442 * of interest. 8443 */ 8444 public boolean didTouchFocusSelect() { 8445 return mTouchFocusSelected; 8446 } 8447 8448 @Override 8449 public void cancelLongPress() { 8450 super.cancelLongPress(); 8451 mIgnoreActionUpEvent = true; 8452 } 8453 8454 /** 8455 * This method is only valid during a touch event. 8456 * 8457 * @return true when the ACTION_UP event should be ignored, false otherwise. 8458 * 8459 * @hide 8460 */ 8461 public boolean shouldIgnoreActionUpEvent() { 8462 return mIgnoreActionUpEvent; 8463 } 8464 8465 @Override 8466 public boolean onTrackballEvent(MotionEvent event) { 8467 if (mMovement != null && mText instanceof Spannable && 8468 mLayout != null) { 8469 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 8470 return true; 8471 } 8472 } 8473 8474 return super.onTrackballEvent(event); 8475 } 8476 8477 public void setScroller(Scroller s) { 8478 mScroller = s; 8479 } 8480 8481 private static class Blink extends Handler implements Runnable { 8482 private final WeakReference<TextView> mView; 8483 private boolean mCancelled; 8484 8485 public Blink(TextView v) { 8486 mView = new WeakReference<TextView>(v); 8487 } 8488 8489 public void run() { 8490 if (mCancelled) { 8491 return; 8492 } 8493 8494 removeCallbacks(Blink.this); 8495 8496 TextView tv = mView.get(); 8497 8498 if (tv != null && tv.shouldBlink()) { 8499 if (tv.mLayout != null) { 8500 tv.invalidateCursorPath(); 8501 } 8502 8503 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 8504 } 8505 } 8506 8507 void cancel() { 8508 if (!mCancelled) { 8509 removeCallbacks(Blink.this); 8510 mCancelled = true; 8511 } 8512 } 8513 8514 void uncancel() { 8515 mCancelled = false; 8516 } 8517 } 8518 8519 /** 8520 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 8521 */ 8522 private boolean shouldBlink() { 8523 if (!isFocused()) return false; 8524 8525 final int start = getSelectionStart(); 8526 if (start < 0) return false; 8527 8528 final int end = getSelectionEnd(); 8529 if (end < 0) return false; 8530 8531 return start == end; 8532 } 8533 8534 private void makeBlink() { 8535 if (isCursorVisible()) { 8536 if (shouldBlink()) { 8537 mShowCursor = SystemClock.uptimeMillis(); 8538 if (mBlink == null) mBlink = new Blink(this); 8539 mBlink.removeCallbacks(mBlink); 8540 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 8541 } 8542 } else { 8543 if (mBlink != null) mBlink.removeCallbacks(mBlink); 8544 } 8545 } 8546 8547 @Override 8548 protected float getLeftFadingEdgeStrength() { 8549 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8550 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8551 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8552 if (mMarquee != null && !mMarquee.isStopped()) { 8553 final Marquee marquee = mMarquee; 8554 if (marquee.shouldDrawLeftFade()) { 8555 return marquee.mScroll / getHorizontalFadingEdgeLength(); 8556 } else { 8557 return 0.0f; 8558 } 8559 } else if (getLineCount() == 1) { 8560 final int layoutDirection = getResolvedLayoutDirection(); 8561 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8562 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8563 case Gravity.LEFT: 8564 return 0.0f; 8565 case Gravity.RIGHT: 8566 return (mLayout.getLineRight(0) - (mRight - mLeft) - 8567 getCompoundPaddingLeft() - getCompoundPaddingRight() - 8568 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 8569 case Gravity.CENTER_HORIZONTAL: 8570 return 0.0f; 8571 } 8572 } 8573 } 8574 return super.getLeftFadingEdgeStrength(); 8575 } 8576 8577 @Override 8578 protected float getRightFadingEdgeStrength() { 8579 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8580 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8581 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8582 if (mMarquee != null && !mMarquee.isStopped()) { 8583 final Marquee marquee = mMarquee; 8584 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 8585 } else if (getLineCount() == 1) { 8586 final int layoutDirection = getResolvedLayoutDirection(); 8587 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8588 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8589 case Gravity.LEFT: 8590 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 8591 getCompoundPaddingRight(); 8592 final float lineWidth = mLayout.getLineWidth(0); 8593 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 8594 case Gravity.RIGHT: 8595 return 0.0f; 8596 case Gravity.CENTER_HORIZONTAL: 8597 case Gravity.FILL_HORIZONTAL: 8598 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 8599 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 8600 getHorizontalFadingEdgeLength(); 8601 } 8602 } 8603 } 8604 return super.getRightFadingEdgeStrength(); 8605 } 8606 8607 @Override 8608 protected int computeHorizontalScrollRange() { 8609 if (mLayout != null) { 8610 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 8611 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 8612 } 8613 8614 return super.computeHorizontalScrollRange(); 8615 } 8616 8617 @Override 8618 protected int computeVerticalScrollRange() { 8619 if (mLayout != null) 8620 return mLayout.getHeight(); 8621 8622 return super.computeVerticalScrollRange(); 8623 } 8624 8625 @Override 8626 protected int computeVerticalScrollExtent() { 8627 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 8628 } 8629 8630 @Override 8631 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 8632 super.findViewsWithText(outViews, searched, flags); 8633 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 8634 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 8635 String searchedLowerCase = searched.toString().toLowerCase(); 8636 String textLowerCase = mText.toString().toLowerCase(); 8637 if (textLowerCase.contains(searchedLowerCase)) { 8638 outViews.add(this); 8639 } 8640 } 8641 } 8642 8643 public enum BufferType { 8644 NORMAL, SPANNABLE, EDITABLE, 8645 } 8646 8647 /** 8648 * Returns the TextView_textColor attribute from the 8649 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 8650 * from the TextView_textAppearance attribute, if TextView_textColor 8651 * was not set directly. 8652 */ 8653 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 8654 ColorStateList colors; 8655 colors = attrs.getColorStateList(com.android.internal.R.styleable. 8656 TextView_textColor); 8657 8658 if (colors == null) { 8659 int ap = attrs.getResourceId(com.android.internal.R.styleable. 8660 TextView_textAppearance, -1); 8661 if (ap != -1) { 8662 TypedArray appearance; 8663 appearance = context.obtainStyledAttributes(ap, 8664 com.android.internal.R.styleable.TextAppearance); 8665 colors = appearance.getColorStateList(com.android.internal.R.styleable. 8666 TextAppearance_textColor); 8667 appearance.recycle(); 8668 } 8669 } 8670 8671 return colors; 8672 } 8673 8674 /** 8675 * Returns the default color from the TextView_textColor attribute 8676 * from the AttributeSet, if set, or the default color from the 8677 * TextAppearance_textColor from the TextView_textAppearance attribute, 8678 * if TextView_textColor was not set directly. 8679 */ 8680 public static int getTextColor(Context context, 8681 TypedArray attrs, 8682 int def) { 8683 ColorStateList colors = getTextColors(context, attrs); 8684 8685 if (colors == null) { 8686 return def; 8687 } else { 8688 return colors.getDefaultColor(); 8689 } 8690 } 8691 8692 @Override 8693 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 8694 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 8695 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 8696 switch (keyCode) { 8697 case KeyEvent.KEYCODE_A: 8698 if (canSelectText()) { 8699 return onTextContextMenuItem(ID_SELECT_ALL); 8700 } 8701 break; 8702 case KeyEvent.KEYCODE_X: 8703 if (canCut()) { 8704 return onTextContextMenuItem(ID_CUT); 8705 } 8706 break; 8707 case KeyEvent.KEYCODE_C: 8708 if (canCopy()) { 8709 return onTextContextMenuItem(ID_COPY); 8710 } 8711 break; 8712 case KeyEvent.KEYCODE_V: 8713 if (canPaste()) { 8714 return onTextContextMenuItem(ID_PASTE); 8715 } 8716 break; 8717 } 8718 } 8719 return super.onKeyShortcut(keyCode, event); 8720 } 8721 8722 /** 8723 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 8724 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 8725 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 8726 */ 8727 private boolean canSelectText() { 8728 return hasSelectionController() && mText.length() != 0; 8729 } 8730 8731 /** 8732 * Test based on the <i>intrinsic</i> charateristics of the TextView. 8733 * The text must be spannable and the movement method must allow for arbitary selection. 8734 * 8735 * See also {@link #canSelectText()}. 8736 */ 8737 private boolean textCanBeSelected() { 8738 // prepareCursorController() relies on this method. 8739 // If you change this condition, make sure prepareCursorController is called anywhere 8740 // the value of this condition might be changed. 8741 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 8742 return isTextEditable() || (mTextIsSelectable && mText instanceof Spannable && isEnabled()); 8743 } 8744 8745 private boolean canCut() { 8746 if (hasPasswordTransformationMethod()) { 8747 return false; 8748 } 8749 8750 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 8751 return true; 8752 } 8753 8754 return false; 8755 } 8756 8757 private boolean canCopy() { 8758 if (hasPasswordTransformationMethod()) { 8759 return false; 8760 } 8761 8762 if (mText.length() > 0 && hasSelection()) { 8763 return true; 8764 } 8765 8766 return false; 8767 } 8768 8769 private boolean canPaste() { 8770 return (mText instanceof Editable && 8771 mInput != null && 8772 getSelectionStart() >= 0 && 8773 getSelectionEnd() >= 0 && 8774 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 8775 hasPrimaryClip()); 8776 } 8777 8778 private static long packRangeInLong(int start, int end) { 8779 return (((long) start) << 32) | end; 8780 } 8781 8782 private static int extractRangeStartFromLong(long range) { 8783 return (int) (range >>> 32); 8784 } 8785 8786 private static int extractRangeEndFromLong(long range) { 8787 return (int) (range & 0x00000000FFFFFFFFL); 8788 } 8789 8790 private boolean selectAll() { 8791 final int length = mText.length(); 8792 Selection.setSelection((Spannable) mText, 0, length); 8793 return length > 0; 8794 } 8795 8796 /** 8797 * Adjusts selection to the word under last touch offset. 8798 * Return true if the operation was successfully performed. 8799 */ 8800 private boolean selectCurrentWord() { 8801 if (!canSelectText()) { 8802 return false; 8803 } 8804 8805 if (hasPasswordTransformationMethod()) { 8806 // Always select all on a password field. 8807 // Cut/copy menu entries are not available for passwords, but being able to select all 8808 // is however useful to delete or paste to replace the entire content. 8809 return selectAll(); 8810 } 8811 8812 int klass = mInputType & InputType.TYPE_MASK_CLASS; 8813 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 8814 8815 // Specific text field types: select the entire text for these 8816 if (klass == InputType.TYPE_CLASS_NUMBER || 8817 klass == InputType.TYPE_CLASS_PHONE || 8818 klass == InputType.TYPE_CLASS_DATETIME || 8819 variation == InputType.TYPE_TEXT_VARIATION_URI || 8820 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 8821 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 8822 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 8823 return selectAll(); 8824 } 8825 8826 long lastTouchOffsets = getLastTouchOffsets(); 8827 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 8828 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 8829 8830 // Safety check in case standard touch event handling has been bypassed 8831 if (minOffset < 0 || minOffset >= mText.length()) return false; 8832 if (maxOffset < 0 || maxOffset >= mText.length()) return false; 8833 8834 int selectionStart, selectionEnd; 8835 8836 // If a URLSpan (web address, email, phone...) is found at that position, select it. 8837 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 8838 if (urlSpans.length >= 1) { 8839 URLSpan urlSpan = urlSpans[0]; 8840 selectionStart = ((Spanned) mText).getSpanStart(urlSpan); 8841 selectionEnd = ((Spanned) mText).getSpanEnd(urlSpan); 8842 } else { 8843 if (mWordIterator == null) { 8844 mWordIterator = new WordIterator(); 8845 } 8846 mWordIterator.setCharSequence(mText, minOffset, maxOffset); 8847 8848 selectionStart = mWordIterator.getBeginning(minOffset); 8849 if (selectionStart == BreakIterator.DONE) return false; 8850 8851 selectionEnd = mWordIterator.getEnd(maxOffset); 8852 if (selectionEnd == BreakIterator.DONE) return false; 8853 8854 if (selectionStart == selectionEnd) { 8855 // Possible when the word iterator does not properly handle the text's language 8856 long range = getCharRange(selectionStart); 8857 selectionStart = extractRangeStartFromLong(range); 8858 selectionEnd = extractRangeEndFromLong(range); 8859 } 8860 } 8861 8862 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8863 return selectionEnd > selectionStart; 8864 } 8865 8866 private long getCharRange(int offset) { 8867 final int textLength = mText.length(); 8868 if (offset + 1 < textLength) { 8869 final char currentChar = mText.charAt(offset); 8870 final char nextChar = mText.charAt(offset + 1); 8871 if (Character.isSurrogatePair(currentChar, nextChar)) { 8872 return packRangeInLong(offset, offset + 2); 8873 } 8874 } 8875 if (offset < textLength) { 8876 return packRangeInLong(offset, offset + 1); 8877 } 8878 if (offset - 2 >= 0) { 8879 final char previousChar = mText.charAt(offset - 1); 8880 final char previousPreviousChar = mText.charAt(offset - 2); 8881 if (Character.isSurrogatePair(previousPreviousChar, previousChar)) { 8882 return packRangeInLong(offset - 2, offset); 8883 } 8884 } 8885 if (offset - 1 >= 0) { 8886 return packRangeInLong(offset - 1, offset); 8887 } 8888 return packRangeInLong(offset, offset); 8889 } 8890 8891 private SpellChecker getSpellChecker() { 8892 if (mSpellChecker == null) { 8893 mSpellChecker = new SpellChecker(this); 8894 } 8895 return mSpellChecker; 8896 } 8897 8898 private long getLastTouchOffsets() { 8899 int minOffset, maxOffset; 8900 8901 if (mContextMenuTriggeredByKey) { 8902 minOffset = getSelectionStart(); 8903 maxOffset = getSelectionEnd(); 8904 } else { 8905 SelectionModifierCursorController selectionController = getSelectionController(); 8906 minOffset = selectionController.getMinTouchOffset(); 8907 maxOffset = selectionController.getMaxTouchOffset(); 8908 } 8909 8910 return packRangeInLong(minOffset, maxOffset); 8911 } 8912 8913 @Override 8914 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 8915 super.onPopulateAccessibilityEvent(event); 8916 8917 final boolean isPassword = hasPasswordTransformationMethod(); 8918 if (!isPassword) { 8919 CharSequence text = getTextForAccessibility(); 8920 if (!TextUtils.isEmpty(text)) { 8921 event.getText().add(text); 8922 } 8923 } 8924 } 8925 8926 @Override 8927 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 8928 super.onInitializeAccessibilityEvent(event); 8929 8930 final boolean isPassword = hasPasswordTransformationMethod(); 8931 event.setPassword(isPassword); 8932 8933 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 8934 event.setFromIndex(Selection.getSelectionStart(mText)); 8935 event.setToIndex(Selection.getSelectionEnd(mText)); 8936 event.setItemCount(mText.length()); 8937 } 8938 } 8939 8940 @Override 8941 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 8942 super.onInitializeAccessibilityNodeInfo(info); 8943 8944 final boolean isPassword = hasPasswordTransformationMethod(); 8945 if (!isPassword) { 8946 info.setText(getTextForAccessibility()); 8947 } 8948 info.setPassword(isPassword); 8949 } 8950 8951 @Override 8952 public void sendAccessibilityEvent(int eventType) { 8953 // Do not send scroll events since first they are not interesting for 8954 // accessibility and second such events a generated too frequently. 8955 // For details see the implementation of bringTextIntoView(). 8956 if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 8957 return; 8958 } 8959 super.sendAccessibilityEvent(eventType); 8960 } 8961 8962 /** 8963 * Gets the text reported for accessibility purposes. It is the 8964 * text if not empty or the hint. 8965 * 8966 * @return The accessibility text. 8967 */ 8968 private CharSequence getTextForAccessibility() { 8969 CharSequence text = getText(); 8970 if (TextUtils.isEmpty(text)) { 8971 text = getHint(); 8972 } 8973 return text; 8974 } 8975 8976 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 8977 int fromIndex, int removedCount, int addedCount) { 8978 AccessibilityEvent event = 8979 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 8980 event.setFromIndex(fromIndex); 8981 event.setRemovedCount(removedCount); 8982 event.setAddedCount(addedCount); 8983 event.setBeforeText(beforeText); 8984 sendAccessibilityEventUnchecked(event); 8985 } 8986 8987 @Override 8988 protected void onCreateContextMenu(ContextMenu menu) { 8989 super.onCreateContextMenu(menu); 8990 boolean added = false; 8991 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 8992 // Problem with context menu on long press: the menu appears while the key in down and when 8993 // the key is released, the view does not receive the key_up event. 8994 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 8995 // events. We cannot simply clear these flags in onTextContextMenuItem since 8996 // it may not be called (if the user/ discards the context menu with the back key). 8997 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 8998 // available in onTextContextMenuItem. 8999 mDPadCenterIsDown = mEnterKeyIsDown = false; 9000 9001 MenuHandler handler = new MenuHandler(); 9002 9003 if (mText instanceof Spanned && hasSelectionController()) { 9004 long lastTouchOffset = getLastTouchOffsets(); 9005 final int selStart = extractRangeStartFromLong(lastTouchOffset); 9006 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 9007 9008 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 9009 if (urls.length > 0) { 9010 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 9011 setOnMenuItemClickListener(handler); 9012 9013 added = true; 9014 } 9015 } 9016 9017 // The context menu is not empty, which will prevent the selection mode from starting. 9018 // Add a entry to start it in the context menu. 9019 // TODO Does not handle the case where a subclass does not call super.thisMethod or 9020 // populates the menu AFTER this call. 9021 if (menu.size() > 0) { 9022 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 9023 setOnMenuItemClickListener(handler); 9024 added = true; 9025 } 9026 9027 if (added) { 9028 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 9029 } 9030 } 9031 9032 /** 9033 * Returns whether this text view is a current input method target. The 9034 * default implementation just checks with {@link InputMethodManager}. 9035 */ 9036 public boolean isInputMethodTarget() { 9037 InputMethodManager imm = InputMethodManager.peekInstance(); 9038 return imm != null && imm.isActive(this); 9039 } 9040 9041 // Selection context mode 9042 private static final int ID_SELECT_ALL = android.R.id.selectAll; 9043 private static final int ID_CUT = android.R.id.cut; 9044 private static final int ID_COPY = android.R.id.copy; 9045 private static final int ID_PASTE = android.R.id.paste; 9046 // Context menu entries 9047 private static final int ID_COPY_URL = android.R.id.copyUrl; 9048 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 9049 9050 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 9051 public boolean onMenuItemClick(MenuItem item) { 9052 return onTextContextMenuItem(item.getItemId()); 9053 } 9054 } 9055 9056 /** 9057 * Called when a context menu option for the text view is selected. Currently 9058 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 9059 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 9060 * or {@link android.R.id#copy}. 9061 * 9062 * @return true if the context menu item action was performed. 9063 */ 9064 public boolean onTextContextMenuItem(int id) { 9065 int min = 0; 9066 int max = mText.length(); 9067 9068 if (isFocused()) { 9069 final int selStart = getSelectionStart(); 9070 final int selEnd = getSelectionEnd(); 9071 9072 min = Math.max(0, Math.min(selStart, selEnd)); 9073 max = Math.max(0, Math.max(selStart, selEnd)); 9074 } 9075 9076 switch (id) { 9077 case ID_COPY_URL: 9078 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 9079 if (urls.length >= 1) { 9080 ClipData clip = null; 9081 for (int i=0; i<urls.length; i++) { 9082 Uri uri = Uri.parse(urls[0].getURL()); 9083 if (clip == null) { 9084 clip = ClipData.newRawUri(null, uri); 9085 } else { 9086 clip.addItem(new ClipData.Item(uri)); 9087 } 9088 } 9089 if (clip != null) { 9090 setPrimaryClip(clip); 9091 } 9092 } 9093 stopSelectionActionMode(); 9094 return true; 9095 9096 case ID_SELECTION_MODE: 9097 if (mSelectionActionMode != null) { 9098 // Selection mode is already started, simply change selected part. 9099 selectCurrentWord(); 9100 } else { 9101 startSelectionActionMode(); 9102 } 9103 return true; 9104 9105 case ID_SELECT_ALL: 9106 // This does not enter text selection mode. Text is highlighted, so that it can be 9107 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 9108 selectAll(); 9109 return true; 9110 9111 case ID_PASTE: 9112 paste(min, max); 9113 return true; 9114 9115 case ID_CUT: 9116 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 9117 ((Editable) mText).delete(min, max); 9118 stopSelectionActionMode(); 9119 return true; 9120 9121 case ID_COPY: 9122 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 9123 stopSelectionActionMode(); 9124 return true; 9125 } 9126 return false; 9127 } 9128 9129 private CharSequence getTransformedText(int start, int end) { 9130 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 9131 } 9132 9133 /** 9134 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 9135 * by [min, max] when replacing this region by paste. 9136 * Note that if there were two spaces (or more) at that position before, they are kept. We just 9137 * make sure we do not add an extra one from the paste content. 9138 */ 9139 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 9140 if (paste.length() > 0) { 9141 if (min > 0) { 9142 final char charBefore = mTransformed.charAt(min - 1); 9143 final char charAfter = paste.charAt(0); 9144 9145 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 9146 // Two spaces at beginning of paste: remove one 9147 final int originalLength = mText.length(); 9148 ((Editable) mText).delete(min - 1, min); 9149 // Due to filters, there is no guarantee that exactly one character was 9150 // removed: count instead. 9151 final int delta = mText.length() - originalLength; 9152 min += delta; 9153 max += delta; 9154 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 9155 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 9156 // No space at beginning of paste: add one 9157 final int originalLength = mText.length(); 9158 ((Editable) mText).replace(min, min, " "); 9159 // Taking possible filters into account as above. 9160 final int delta = mText.length() - originalLength; 9161 min += delta; 9162 max += delta; 9163 } 9164 } 9165 9166 if (max < mText.length()) { 9167 final char charBefore = paste.charAt(paste.length() - 1); 9168 final char charAfter = mTransformed.charAt(max); 9169 9170 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 9171 // Two spaces at end of paste: remove one 9172 ((Editable) mText).delete(max, max + 1); 9173 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 9174 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 9175 // No space at end of paste: add one 9176 ((Editable) mText).replace(max, max, " "); 9177 } 9178 } 9179 } 9180 9181 return packRangeInLong(min, max); 9182 } 9183 9184 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 9185 TextView shadowView = (TextView) inflate(mContext, 9186 com.android.internal.R.layout.text_drag_thumbnail, null); 9187 9188 if (shadowView == null) { 9189 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 9190 } 9191 9192 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 9193 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 9194 } 9195 shadowView.setText(text); 9196 shadowView.setTextColor(getTextColors()); 9197 9198 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 9199 shadowView.setGravity(Gravity.CENTER); 9200 9201 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9202 ViewGroup.LayoutParams.WRAP_CONTENT)); 9203 9204 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 9205 shadowView.measure(size, size); 9206 9207 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 9208 shadowView.invalidate(); 9209 return new DragShadowBuilder(shadowView); 9210 } 9211 9212 private static class DragLocalState { 9213 public TextView sourceTextView; 9214 public int start, end; 9215 9216 public DragLocalState(TextView sourceTextView, int start, int end) { 9217 this.sourceTextView = sourceTextView; 9218 this.start = start; 9219 this.end = end; 9220 } 9221 } 9222 9223 @Override 9224 public boolean performLongClick() { 9225 boolean handled = false; 9226 boolean vibrate = true; 9227 9228 if (super.performLongClick()) { 9229 mDiscardNextActionUp = true; 9230 handled = true; 9231 } 9232 9233 // Long press in empty space moves cursor and shows the Paste affordance if available. 9234 if (!handled && !isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 9235 mInsertionControllerEnabled) { 9236 final int offset = getOffsetForPosition(mLastDownPositionX, mLastDownPositionY); 9237 stopSelectionActionMode(); 9238 Selection.setSelection((Spannable) mText, offset); 9239 getInsertionController().showWithActionPopup(); 9240 handled = true; 9241 vibrate = false; 9242 } 9243 9244 if (!handled && mSelectionActionMode != null) { 9245 if (touchPositionIsInSelection()) { 9246 // Start a drag 9247 final int start = getSelectionStart(); 9248 final int end = getSelectionEnd(); 9249 CharSequence selectedText = getTransformedText(start, end); 9250 ClipData data = ClipData.newPlainText(null, selectedText); 9251 DragLocalState localState = new DragLocalState(this, start, end); 9252 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 9253 stopSelectionActionMode(); 9254 } else { 9255 getSelectionController().hide(); 9256 selectCurrentWord(); 9257 getSelectionController().show(); 9258 } 9259 handled = true; 9260 } 9261 9262 // Start a new selection 9263 if (!handled) { 9264 vibrate = handled = startSelectionActionMode(); 9265 } 9266 9267 if (vibrate) { 9268 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 9269 } 9270 9271 if (handled) { 9272 mDiscardNextActionUp = true; 9273 } 9274 9275 return handled; 9276 } 9277 9278 private boolean touchPositionIsInSelection() { 9279 int selectionStart = getSelectionStart(); 9280 int selectionEnd = getSelectionEnd(); 9281 9282 if (selectionStart == selectionEnd) { 9283 return false; 9284 } 9285 9286 if (selectionStart > selectionEnd) { 9287 int tmp = selectionStart; 9288 selectionStart = selectionEnd; 9289 selectionEnd = tmp; 9290 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 9291 } 9292 9293 SelectionModifierCursorController selectionController = getSelectionController(); 9294 int minOffset = selectionController.getMinTouchOffset(); 9295 int maxOffset = selectionController.getMaxTouchOffset(); 9296 9297 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 9298 } 9299 9300 private PositionListener getPositionListener() { 9301 if (mPositionListener == null) { 9302 mPositionListener = new PositionListener(); 9303 } 9304 return mPositionListener; 9305 } 9306 9307 private interface TextViewPositionListener { 9308 public void updatePosition(int parentPositionX, int parentPositionY, 9309 boolean parentPositionChanged, boolean parentScrolled); 9310 } 9311 9312 private class PositionListener implements ViewTreeObserver.OnPreDrawListener { 9313 // 3 handles 9314 // 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others) 9315 private final int MAXIMUM_NUMBER_OF_LISTENERS = 6; 9316 private TextViewPositionListener[] mPositionListeners = 9317 new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; 9318 private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; 9319 private boolean mPositionHasChanged = true; 9320 // Absolute position of the TextView with respect to its parent window 9321 private int mPositionX, mPositionY; 9322 private int mNumberOfListeners; 9323 private boolean mScrollHasChanged; 9324 9325 public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { 9326 if (mNumberOfListeners == 0) { 9327 updatePosition(); 9328 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9329 vto.addOnPreDrawListener(this); 9330 } 9331 9332 int emptySlotIndex = -1; 9333 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9334 TextViewPositionListener listener = mPositionListeners[i]; 9335 if (listener == positionListener) { 9336 return; 9337 } else if (emptySlotIndex < 0 && listener == null) { 9338 emptySlotIndex = i; 9339 } 9340 } 9341 9342 mPositionListeners[emptySlotIndex] = positionListener; 9343 mCanMove[emptySlotIndex] = canMove; 9344 mNumberOfListeners++; 9345 } 9346 9347 public void removeSubscriber(TextViewPositionListener positionListener) { 9348 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9349 if (mPositionListeners[i] == positionListener) { 9350 mPositionListeners[i] = null; 9351 mNumberOfListeners--; 9352 break; 9353 } 9354 } 9355 9356 if (mNumberOfListeners == 0) { 9357 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9358 vto.removeOnPreDrawListener(this); 9359 } 9360 } 9361 9362 public int getPositionX() { 9363 return mPositionX; 9364 } 9365 9366 public int getPositionY() { 9367 return mPositionY; 9368 } 9369 9370 @Override 9371 public boolean onPreDraw() { 9372 updatePosition(); 9373 9374 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9375 if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) { 9376 TextViewPositionListener positionListener = mPositionListeners[i]; 9377 if (positionListener != null) { 9378 positionListener.updatePosition(mPositionX, mPositionY, 9379 mPositionHasChanged, mScrollHasChanged); 9380 } 9381 } 9382 } 9383 9384 mScrollHasChanged = false; 9385 return true; 9386 } 9387 9388 private void updatePosition() { 9389 TextView.this.getLocationInWindow(mTempCoords); 9390 9391 mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; 9392 9393 mPositionX = mTempCoords[0]; 9394 mPositionY = mTempCoords[1]; 9395 } 9396 9397 public boolean isVisible(int positionX, int positionY) { 9398 final TextView textView = TextView.this; 9399 9400 if (mTempRect == null) mTempRect = new Rect(); 9401 final Rect clip = mTempRect; 9402 clip.left = getCompoundPaddingLeft(); 9403 clip.top = getExtendedPaddingTop(); 9404 clip.right = textView.getWidth() - getCompoundPaddingRight(); 9405 clip.bottom = textView.getHeight() - getExtendedPaddingBottom(); 9406 9407 final ViewParent parent = textView.getParent(); 9408 if (parent == null || !parent.getChildVisibleRect(textView, clip, null)) { 9409 return false; 9410 } 9411 9412 int posX = mPositionX + positionX - getScrollX(); 9413 int posY = mPositionY + positionY - getScrollY(); 9414 9415 // Offset by 1 to take into account 0.5 and int rounding around getPrimaryHorizontal. 9416 return posX >= clip.left - 1 && posX <= clip.right + 1 && 9417 posY >= clip.top && posY <= clip.bottom; 9418 } 9419 9420 public boolean isOffsetVisible(int offset) { 9421 final int line = mLayout.getLineForOffset(offset); 9422 final int lineBottom = mLayout.getLineBottom(line); 9423 final int primaryHorizontal = (int) mLayout.getPrimaryHorizontal(offset); 9424 return isVisible(primaryHorizontal, lineBottom); 9425 } 9426 9427 public void onScrollChanged() { 9428 mScrollHasChanged = true; 9429 } 9430 } 9431 9432 @Override 9433 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 9434 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 9435 if (mPositionListener != null) { 9436 mPositionListener.onScrollChanged(); 9437 } 9438 } 9439 9440 private abstract class PinnedPopupWindow implements TextViewPositionListener { 9441 protected PopupWindow mPopupWindow; 9442 protected ViewGroup mContentView; 9443 int mPositionX, mPositionY; 9444 9445 protected abstract void createPopupWindow(); 9446 protected abstract void initContentView(); 9447 protected abstract int getTextOffset(); 9448 protected abstract int getVerticalLocalPosition(int line); 9449 protected abstract int clipVertically(int positionY); 9450 9451 public PinnedPopupWindow() { 9452 createPopupWindow(); 9453 9454 mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 9455 mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 9456 mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 9457 9458 initContentView(); 9459 9460 LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9461 ViewGroup.LayoutParams.WRAP_CONTENT); 9462 mContentView.setLayoutParams(wrapContent); 9463 9464 mPopupWindow.setContentView(mContentView); 9465 } 9466 9467 public void show() { 9468 TextView.this.getPositionListener().addSubscriber(this, false /* offset is fixed */); 9469 9470 computeLocalPosition(); 9471 9472 final PositionListener positionListener = TextView.this.getPositionListener(); 9473 updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); 9474 } 9475 9476 protected void measureContent() { 9477 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9478 mContentView.measure( 9479 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 9480 View.MeasureSpec.AT_MOST), 9481 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 9482 View.MeasureSpec.AT_MOST)); 9483 } 9484 9485 /* The popup window will be horizontally centered on the getTextOffset() and vertically 9486 * positioned according to viewportToContentHorizontalOffset. 9487 * 9488 * This method assumes that mContentView has properly been measured from its content. */ 9489 private void computeLocalPosition() { 9490 measureContent(); 9491 final int width = mContentView.getMeasuredWidth(); 9492 final int offset = getTextOffset(); 9493 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f); 9494 mPositionX += viewportToContentHorizontalOffset(); 9495 9496 final int line = mLayout.getLineForOffset(offset); 9497 mPositionY = getVerticalLocalPosition(line); 9498 mPositionY += viewportToContentVerticalOffset(); 9499 } 9500 9501 private void updatePosition(int parentPositionX, int parentPositionY) { 9502 int positionX = parentPositionX + mPositionX; 9503 int positionY = parentPositionY + mPositionY; 9504 9505 positionY = clipVertically(positionY); 9506 9507 // Horizontal clipping 9508 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9509 final int width = mContentView.getMeasuredWidth(); 9510 positionX = Math.min(displayMetrics.widthPixels - width, positionX); 9511 positionX = Math.max(0, positionX); 9512 9513 if (isShowing()) { 9514 mPopupWindow.update(positionX, positionY, -1, -1); 9515 } else { 9516 mPopupWindow.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 9517 positionX, positionY); 9518 } 9519 } 9520 9521 public void hide() { 9522 mPopupWindow.dismiss(); 9523 TextView.this.getPositionListener().removeSubscriber(this); 9524 } 9525 9526 @Override 9527 public void updatePosition(int parentPositionX, int parentPositionY, 9528 boolean parentPositionChanged, boolean parentScrolled) { 9529 // Either parentPositionChanged or parentScrolled is true, check if still visible 9530 if (isShowing() && getPositionListener().isOffsetVisible(getTextOffset())) { 9531 if (parentScrolled) computeLocalPosition(); 9532 updatePosition(parentPositionX, parentPositionY); 9533 } else { 9534 hide(); 9535 } 9536 } 9537 9538 public boolean isShowing() { 9539 return mPopupWindow.isShowing(); 9540 } 9541 } 9542 9543 private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener { 9544 private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE; 9545 private static final int ADD_TO_DICTIONARY = -1; 9546 private static final int DELETE_TEXT = -2; 9547 private SuggestionInfo[] mSuggestionInfos; 9548 private int mNumberOfSuggestions; 9549 private boolean mCursorWasVisibleBeforeSuggestions; 9550 private SuggestionAdapter mSuggestionsAdapter; 9551 private final Comparator<SuggestionSpan> mSuggestionSpanComparator; 9552 private final HashMap<SuggestionSpan, Integer> mSpansLengths; 9553 9554 private class CustomPopupWindow extends PopupWindow { 9555 public CustomPopupWindow(Context context, int defStyle) { 9556 super(context, null, defStyle); 9557 } 9558 9559 @Override 9560 public void dismiss() { 9561 super.dismiss(); 9562 9563 TextView.this.getPositionListener().removeSubscriber(SuggestionsPopupWindow.this); 9564 9565 // Safe cast since show() checks that mText is an Editable 9566 ((Spannable) mText).removeSpan(mSuggestionRangeSpan); 9567 9568 setCursorVisible(mCursorWasVisibleBeforeSuggestions); 9569 if (hasInsertionController()) { 9570 getInsertionController().show(); 9571 } 9572 } 9573 } 9574 9575 public SuggestionsPopupWindow() { 9576 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 9577 mSuggestionSpanComparator = new SuggestionSpanComparator(); 9578 mSpansLengths = new HashMap<SuggestionSpan, Integer>(); 9579 } 9580 9581 @Override 9582 protected void createPopupWindow() { 9583 mPopupWindow = new CustomPopupWindow(TextView.this.mContext, 9584 com.android.internal.R.attr.textSuggestionsWindowStyle); 9585 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 9586 mPopupWindow.setFocusable(true); 9587 mPopupWindow.setClippingEnabled(false); 9588 } 9589 9590 @Override 9591 protected void initContentView() { 9592 ListView listView = new ListView(TextView.this.getContext()); 9593 mSuggestionsAdapter = new SuggestionAdapter(); 9594 listView.setAdapter(mSuggestionsAdapter); 9595 listView.setOnItemClickListener(this); 9596 mContentView = listView; 9597 9598 // Inflate the suggestion items once and for all. + 2 for add to dictionary and delete 9599 mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2]; 9600 for (int i = 0; i < mSuggestionInfos.length; i++) { 9601 mSuggestionInfos[i] = new SuggestionInfo(); 9602 } 9603 } 9604 9605 private class SuggestionInfo { 9606 int suggestionStart, suggestionEnd; // range of actual suggestion within text 9607 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 9608 int suggestionIndex; // the index of this suggestion inside suggestionSpan 9609 SpannableStringBuilder text = new SpannableStringBuilder(); 9610 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext, 9611 android.R.style.TextAppearance_SuggestionHighlight); 9612 9613 void removeMisspelledFlag() { 9614 int suggestionSpanFlags = suggestionSpan.getFlags(); 9615 if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) { 9616 suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED; 9617 suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 9618 suggestionSpan.setFlags(suggestionSpanFlags); 9619 } 9620 } 9621 } 9622 9623 private class SuggestionAdapter extends BaseAdapter { 9624 private LayoutInflater mInflater = (LayoutInflater) TextView.this.mContext. 9625 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 9626 9627 @Override 9628 public int getCount() { 9629 return mNumberOfSuggestions; 9630 } 9631 9632 @Override 9633 public Object getItem(int position) { 9634 return mSuggestionInfos[position]; 9635 } 9636 9637 @Override 9638 public long getItemId(int position) { 9639 return position; 9640 } 9641 9642 @Override 9643 public View getView(int position, View convertView, ViewGroup parent) { 9644 TextView textView = (TextView) convertView; 9645 9646 if (textView == null) { 9647 textView = (TextView) mInflater.inflate(mTextEditSuggestionItemLayout, parent, 9648 false); 9649 } 9650 9651 final SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9652 textView.setText(suggestionInfo.text); 9653 9654 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9655 textView.setCompoundDrawablesWithIntrinsicBounds( 9656 com.android.internal.R.drawable.ic_suggestions_add, 0, 0, 0); 9657 } else if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9658 textView.setCompoundDrawablesWithIntrinsicBounds( 9659 com.android.internal.R.drawable.ic_suggestions_delete, 0, 0, 0); 9660 } else { 9661 textView.setCompoundDrawables(null, null, null, null); 9662 } 9663 9664 return textView; 9665 } 9666 } 9667 9668 private class SuggestionSpanComparator implements Comparator<SuggestionSpan> { 9669 public int compare(SuggestionSpan span1, SuggestionSpan span2) { 9670 final int flag1 = span1.getFlags(); 9671 final int flag2 = span2.getFlags(); 9672 if (flag1 != flag2) { 9673 // The order here should match what is used in updateDrawState 9674 final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 9675 final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 9676 final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0; 9677 final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0; 9678 if (easy1 && !misspelled1) return -1; 9679 if (easy2 && !misspelled2) return 1; 9680 if (misspelled1) return -1; 9681 if (misspelled2) return 1; 9682 } 9683 9684 return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue(); 9685 } 9686 } 9687 9688 /** 9689 * Returns the suggestion spans that cover the current cursor position. The suggestion 9690 * spans are sorted according to the length of text that they are attached to. 9691 */ 9692 private SuggestionSpan[] getSuggestionSpans() { 9693 int pos = TextView.this.getSelectionStart(); 9694 Spannable spannable = (Spannable) TextView.this.mText; 9695 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 9696 9697 mSpansLengths.clear(); 9698 for (SuggestionSpan suggestionSpan : suggestionSpans) { 9699 int start = spannable.getSpanStart(suggestionSpan); 9700 int end = spannable.getSpanEnd(suggestionSpan); 9701 mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start)); 9702 } 9703 9704 // The suggestions are sorted according to their types (easy correction first, then 9705 // misspelled) and to the length of the text that they cover (shorter first). 9706 Arrays.sort(suggestionSpans, mSuggestionSpanComparator); 9707 return suggestionSpans; 9708 } 9709 9710 @Override 9711 public void show() { 9712 if (!(mText instanceof Editable)) return; 9713 9714 updateSuggestions(); 9715 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 9716 setCursorVisible(false); 9717 super.show(); 9718 } 9719 9720 @Override 9721 protected void measureContent() { 9722 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9723 final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec( 9724 displayMetrics.widthPixels, View.MeasureSpec.AT_MOST); 9725 final int verticalMeasure = View.MeasureSpec.makeMeasureSpec( 9726 displayMetrics.heightPixels, View.MeasureSpec.AT_MOST); 9727 9728 int width = 0; 9729 View view = null; 9730 for (int i = 0; i < mNumberOfSuggestions; i++) { 9731 view = mSuggestionsAdapter.getView(i, view, mContentView); 9732 view.getLayoutParams().width = LayoutParams.WRAP_CONTENT; 9733 view.measure(horizontalMeasure, verticalMeasure); 9734 width = Math.max(width, view.getMeasuredWidth()); 9735 } 9736 9737 // Enforce the width based on actual text widths 9738 mContentView.measure( 9739 View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), 9740 verticalMeasure); 9741 9742 Drawable popupBackground = mPopupWindow.getBackground(); 9743 if (popupBackground != null) { 9744 if (mTempRect == null) mTempRect = new Rect(); 9745 popupBackground.getPadding(mTempRect); 9746 width += mTempRect.left + mTempRect.right; 9747 } 9748 mPopupWindow.setWidth(width); 9749 } 9750 9751 @Override 9752 protected int getTextOffset() { 9753 return getSelectionStart(); 9754 } 9755 9756 @Override 9757 protected int getVerticalLocalPosition(int line) { 9758 return mLayout.getLineBottom(line); 9759 } 9760 9761 @Override 9762 protected int clipVertically(int positionY) { 9763 final int height = mContentView.getMeasuredHeight(); 9764 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9765 return Math.min(positionY, displayMetrics.heightPixels - height); 9766 } 9767 9768 @Override 9769 public void hide() { 9770 super.hide(); 9771 } 9772 9773 private void updateSuggestions() { 9774 Spannable spannable = (Spannable) TextView.this.mText; 9775 SuggestionSpan[] suggestionSpans = getSuggestionSpans(); 9776 9777 final int nbSpans = suggestionSpans.length; 9778 9779 mNumberOfSuggestions = 0; 9780 int spanUnionStart = mText.length(); 9781 int spanUnionEnd = 0; 9782 9783 SuggestionSpan misspelledSpan = null; 9784 int underlineColor = 0; 9785 9786 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 9787 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 9788 final int spanStart = spannable.getSpanStart(suggestionSpan); 9789 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 9790 spanUnionStart = Math.min(spanStart, spanUnionStart); 9791 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 9792 9793 if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) { 9794 misspelledSpan = suggestionSpan; 9795 } 9796 9797 // The first span dictates the background color of the highlighted text 9798 if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor(); 9799 9800 String[] suggestions = suggestionSpan.getSuggestions(); 9801 int nbSuggestions = suggestions.length; 9802 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 9803 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9804 suggestionInfo.suggestionSpan = suggestionSpan; 9805 suggestionInfo.suggestionIndex = suggestionIndex; 9806 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9807 suggestions[suggestionIndex]); 9808 9809 mNumberOfSuggestions++; 9810 if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) { 9811 // Also end outer for loop 9812 spanIndex = nbSpans; 9813 break; 9814 } 9815 } 9816 } 9817 9818 for (int i = 0; i < mNumberOfSuggestions; i++) { 9819 highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd); 9820 } 9821 9822 // Add to dictionary item is there a span with the misspelled flag 9823 if (misspelledSpan != null) { 9824 final int misspelledStart = spannable.getSpanStart(misspelledSpan); 9825 final int misspelledEnd = spannable.getSpanEnd(misspelledSpan); 9826 if (misspelledStart >= 0 && misspelledEnd > misspelledStart) { 9827 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9828 suggestionInfo.suggestionSpan = misspelledSpan; 9829 suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY; 9830 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9831 getContext().getString(com.android.internal.R.string.addToDictionary)); 9832 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 9833 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9834 9835 mNumberOfSuggestions++; 9836 } 9837 } 9838 9839 // Delete item 9840 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9841 suggestionInfo.suggestionSpan = null; 9842 suggestionInfo.suggestionIndex = DELETE_TEXT; 9843 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9844 getContext().getString(com.android.internal.R.string.deleteText)); 9845 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 9846 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9847 mNumberOfSuggestions++; 9848 9849 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 9850 if (underlineColor == 0) { 9851 // Fallback on the default highlight color when the first span does not provide one 9852 mSuggestionRangeSpan.setBackgroundColor(mHighlightColor); 9853 } else { 9854 final float BACKGROUND_TRANSPARENCY = 0.4f; 9855 final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY); 9856 mSuggestionRangeSpan.setBackgroundColor( 9857 (underlineColor & 0x00FFFFFF) + (newAlpha << 24)); 9858 } 9859 spannable.setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 9860 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9861 9862 mSuggestionsAdapter.notifyDataSetChanged(); 9863 } 9864 9865 private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart, 9866 int unionEnd) { 9867 final Spannable text = (Spannable) mText; 9868 final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan); 9869 final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan); 9870 9871 // Adjust the start/end of the suggestion span 9872 suggestionInfo.suggestionStart = spanStart - unionStart; 9873 suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart 9874 + suggestionInfo.text.length(); 9875 9876 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 9877 suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9878 9879 // Add the text before and after the span. 9880 suggestionInfo.text.insert(0, mText.toString().substring(unionStart, spanStart)); 9881 suggestionInfo.text.append(mText.toString().substring(spanEnd, unionEnd)); 9882 } 9883 9884 @Override 9885 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 9886 TextView textView = (TextView) view; 9887 Editable editable = (Editable) mText; 9888 9889 SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9890 9891 if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9892 final int spanUnionStart = editable.getSpanStart(mSuggestionRangeSpan); 9893 int spanUnionEnd = editable.getSpanEnd(mSuggestionRangeSpan); 9894 if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) { 9895 // Do not leave two adjacent spaces after deletion, or one at beginning of text 9896 if (spanUnionEnd < editable.length() && 9897 Character.isSpaceChar(editable.charAt(spanUnionEnd)) && 9898 (spanUnionStart == 0 || 9899 Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) { 9900 spanUnionEnd = spanUnionEnd + 1; 9901 } 9902 editable.replace(spanUnionStart, spanUnionEnd, ""); 9903 } 9904 hide(); 9905 return; 9906 } 9907 9908 final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan); 9909 final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan); 9910 if (spanStart < 0 || spanEnd < 0) { 9911 // Span has been removed 9912 hide(); 9913 return; 9914 } 9915 final String originalText = mText.toString().substring(spanStart, spanEnd); 9916 9917 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9918 Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT); 9919 intent.putExtra("word", originalText); 9920 intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 9921 getContext().startActivity(intent); 9922 // There is no way to know if the word was indeed added. Re-check. 9923 editable.removeSpan(suggestionInfo.suggestionSpan); 9924 updateSpellCheckSpans(spanStart, spanEnd); 9925 } else { 9926 // SuggestionSpans are removed by replace: save them before 9927 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 9928 SuggestionSpan.class); 9929 final int length = suggestionSpans.length; 9930 int[] suggestionSpansStarts = new int[length]; 9931 int[] suggestionSpansEnds = new int[length]; 9932 int[] suggestionSpansFlags = new int[length]; 9933 for (int i = 0; i < length; i++) { 9934 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 9935 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 9936 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 9937 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 9938 } 9939 9940 final int suggestionStart = suggestionInfo.suggestionStart; 9941 final int suggestionEnd = suggestionInfo.suggestionEnd; 9942 final String suggestion = textView.getText().subSequence( 9943 suggestionStart, suggestionEnd).toString(); 9944 editable.replace(spanStart, spanEnd, suggestion); 9945 9946 suggestionInfo.removeMisspelledFlag(); 9947 9948 // Notify source IME of the suggestion pick. Do this before swaping texts. 9949 if (!TextUtils.isEmpty( 9950 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 9951 InputMethodManager imm = InputMethodManager.peekInstance(); 9952 if (imm != null) { 9953 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 9954 suggestionInfo.suggestionIndex); 9955 } 9956 } 9957 9958 // Swap text content between actual text and Suggestion span 9959 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 9960 suggestions[suggestionInfo.suggestionIndex] = originalText; 9961 9962 // Restore previous SuggestionSpans 9963 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 9964 for (int i = 0; i < length; i++) { 9965 // Only spans that include the modified region make sense after replacement 9966 // Spans partially included in the replaced region are removed, there is no 9967 // way to assign them a valid range after replacement 9968 if (suggestionSpansStarts[i] <= spanStart && 9969 suggestionSpansEnds[i] >= spanEnd) { 9970 editable.setSpan(suggestionSpans[i], suggestionSpansStarts[i], 9971 suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]); 9972 } 9973 } 9974 9975 // Move cursor at the end of the replaced word 9976 Selection.setSelection(editable, spanEnd + lengthDifference); 9977 } 9978 9979 hide(); 9980 } 9981 } 9982 9983 /** 9984 * Removes the suggestion spans. 9985 */ 9986 CharSequence removeSuggestionSpans(CharSequence text) { 9987 if (text instanceof Spanned) { 9988 Spannable spannable; 9989 if (text instanceof Spannable) { 9990 spannable = (Spannable) text; 9991 } else { 9992 spannable = new SpannableString(text); 9993 text = spannable; 9994 } 9995 9996 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 9997 for (int i = 0; i < spans.length; i++) { 9998 spannable.removeSpan(spans[i]); 9999 } 10000 } 10001 return text; 10002 } 10003 10004 void showSuggestions() { 10005 if (mSuggestionsPopupWindow == null) { 10006 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 10007 } 10008 hideControllers(); 10009 mSuggestionsPopupWindow.show(); 10010 } 10011 10012 boolean areSuggestionsShown() { 10013 return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing(); 10014 } 10015 10016 /** 10017 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 10018 * by the IME or by the spell checker as the user types. This is done by adding 10019 * {@link SuggestionSpan}s to the text. 10020 * 10021 * When suggestions are enabled (default), this list of suggestions will be displayed when the 10022 * user asks for them on these parts of the text. This value depends on the inputType of this 10023 * TextView. 10024 * 10025 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 10026 * 10027 * In addition, the type variation must be one of 10028 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 10029 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 10030 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 10031 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 10032 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 10033 * 10034 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 10035 * 10036 * @return true if the suggestions popup window is enabled, based on the inputType. 10037 */ 10038 public boolean isSuggestionsEnabled() { 10039 if ((mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) return false; 10040 if ((mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 10041 10042 final int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 10043 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL || 10044 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT || 10045 variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE || 10046 variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE || 10047 variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 10048 } 10049 10050 /** 10051 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 10052 * selection is initiated in this View. 10053 * 10054 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 10055 * Paste actions, depending on what this View supports. 10056 * 10057 * A custom implementation can add new entries in the default menu in its 10058 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The 10059 * default actions can also be removed from the menu using {@link Menu#removeItem(int)} and 10060 * passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} 10061 * or {@link android.R.id#paste} ids as parameters. 10062 * 10063 * Returning false from 10064 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent 10065 * the action mode from being started. 10066 * 10067 * Action click events should be handled by the custom implementation of 10068 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 10069 * 10070 * Note that text selection mode is not started when a TextView receives focus and the 10071 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 10072 * that case, to allow for quick replacement. 10073 */ 10074 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 10075 mCustomSelectionActionModeCallback = actionModeCallback; 10076 } 10077 10078 /** 10079 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 10080 * 10081 * @return The current custom selection callback. 10082 */ 10083 public ActionMode.Callback getCustomSelectionActionModeCallback() { 10084 return mCustomSelectionActionModeCallback; 10085 } 10086 10087 /** 10088 * 10089 * @return true if the selection mode was actually started. 10090 */ 10091 private boolean startSelectionActionMode() { 10092 if (mSelectionActionMode != null) { 10093 // Selection action mode is already started 10094 return false; 10095 } 10096 10097 if (!canSelectText() || !requestFocus()) { 10098 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 10099 return false; 10100 } 10101 10102 if (!hasSelection()) { 10103 // There may already be a selection on device rotation 10104 if (!selectCurrentWord()) { 10105 // No word found under cursor or text selection not permitted. 10106 return false; 10107 } 10108 } 10109 10110 final InputMethodManager imm = InputMethodManager.peekInstance(); 10111 boolean extractedTextModeWillBeStartedFullScreen = !(this instanceof ExtractEditText) && 10112 imm != null && imm.isFullscreenMode(); 10113 10114 // Do not start the action mode when extracted text will show up full screen, thus 10115 // immediately hiding the newly created action bar, which would be visually distracting. 10116 if (!extractedTextModeWillBeStartedFullScreen) { 10117 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 10118 mSelectionActionMode = startActionMode(actionModeCallback); 10119 } 10120 final boolean selectionStarted = mSelectionActionMode != null || 10121 extractedTextModeWillBeStartedFullScreen; 10122 10123 if (selectionStarted && !mTextIsSelectable && imm != null) { 10124 // Show the IME to be able to replace text, except when selecting non editable text. 10125 imm.showSoftInput(this, 0, null); 10126 } 10127 10128 return selectionStarted; 10129 } 10130 10131 private void stopSelectionActionMode() { 10132 if (mSelectionActionMode != null) { 10133 // This will hide the mSelectionModifierCursorController 10134 mSelectionActionMode.finish(); 10135 } 10136 } 10137 10138 /** 10139 * Paste clipboard content between min and max positions. 10140 */ 10141 private void paste(int min, int max) { 10142 ClipboardManager clipboard = 10143 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 10144 ClipData clip = clipboard.getPrimaryClip(); 10145 if (clip != null) { 10146 boolean didFirst = false; 10147 for (int i=0; i<clip.getItemCount(); i++) { 10148 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 10149 if (paste != null) { 10150 if (!didFirst) { 10151 long minMax = prepareSpacesAroundPaste(min, max, paste); 10152 min = extractRangeStartFromLong(minMax); 10153 max = extractRangeEndFromLong(minMax); 10154 Selection.setSelection((Spannable) mText, max); 10155 ((Editable) mText).replace(min, max, paste); 10156 didFirst = true; 10157 } else { 10158 ((Editable) mText).insert(getSelectionEnd(), "\n"); 10159 ((Editable) mText).insert(getSelectionEnd(), paste); 10160 } 10161 } 10162 } 10163 stopSelectionActionMode(); 10164 sLastCutOrCopyTime = 0; 10165 } 10166 } 10167 10168 private void setPrimaryClip(ClipData clip) { 10169 ClipboardManager clipboard = (ClipboardManager) getContext(). 10170 getSystemService(Context.CLIPBOARD_SERVICE); 10171 clipboard.setPrimaryClip(clip); 10172 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 10173 } 10174 10175 /** 10176 * An ActionMode Callback class that is used to provide actions while in text selection mode. 10177 * 10178 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 10179 * on which of these this TextView supports. 10180 */ 10181 private class SelectionActionModeCallback implements ActionMode.Callback { 10182 10183 @Override 10184 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 10185 TypedArray styledAttributes = mContext.obtainStyledAttributes( 10186 com.android.internal.R.styleable.SelectionModeDrawables); 10187 10188 boolean allowText = getContext().getResources().getBoolean( 10189 com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon); 10190 10191 mode.setTitle(allowText ? 10192 mContext.getString(com.android.internal.R.string.textSelectionCABTitle) : null); 10193 mode.setSubtitle(null); 10194 10195 int selectAllIconId = 0; // No icon by default 10196 if (!allowText) { 10197 // Provide an icon, text will not be displayed on smaller screens. 10198 selectAllIconId = styledAttributes.getResourceId( 10199 R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0); 10200 } 10201 10202 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 10203 setIcon(selectAllIconId). 10204 setAlphabeticShortcut('a'). 10205 setShowAsAction( 10206 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10207 10208 if (canCut()) { 10209 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 10210 setIcon(styledAttributes.getResourceId( 10211 R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)). 10212 setAlphabeticShortcut('x'). 10213 setShowAsAction( 10214 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10215 } 10216 10217 if (canCopy()) { 10218 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 10219 setIcon(styledAttributes.getResourceId( 10220 R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)). 10221 setAlphabeticShortcut('c'). 10222 setShowAsAction( 10223 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10224 } 10225 10226 if (canPaste()) { 10227 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 10228 setIcon(styledAttributes.getResourceId( 10229 R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)). 10230 setAlphabeticShortcut('v'). 10231 setShowAsAction( 10232 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10233 } 10234 10235 styledAttributes.recycle(); 10236 10237 if (mCustomSelectionActionModeCallback != null) { 10238 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 10239 // The custom mode can choose to cancel the action mode 10240 return false; 10241 } 10242 } 10243 10244 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 10245 getSelectionController().show(); 10246 return true; 10247 } else { 10248 return false; 10249 } 10250 } 10251 10252 @Override 10253 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 10254 if (mCustomSelectionActionModeCallback != null) { 10255 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 10256 } 10257 return true; 10258 } 10259 10260 @Override 10261 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 10262 if (mCustomSelectionActionModeCallback != null && 10263 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 10264 return true; 10265 } 10266 return onTextContextMenuItem(item.getItemId()); 10267 } 10268 10269 @Override 10270 public void onDestroyActionMode(ActionMode mode) { 10271 if (mCustomSelectionActionModeCallback != null) { 10272 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 10273 } 10274 Selection.setSelection((Spannable) mText, getSelectionEnd()); 10275 10276 if (mSelectionModifierCursorController != null) { 10277 mSelectionModifierCursorController.hide(); 10278 } 10279 10280 mSelectionActionMode = null; 10281 } 10282 } 10283 10284 private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { 10285 private static final int POPUP_TEXT_LAYOUT = 10286 com.android.internal.R.layout.text_edit_action_popup_text; 10287 private TextView mPasteTextView; 10288 private TextView mReplaceTextView; 10289 10290 @Override 10291 protected void createPopupWindow() { 10292 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 10293 com.android.internal.R.attr.textSelectHandleWindowStyle); 10294 mPopupWindow.setClippingEnabled(true); 10295 } 10296 10297 @Override 10298 protected void initContentView() { 10299 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 10300 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 10301 mContentView = linearLayout; 10302 mContentView.setBackgroundResource( 10303 com.android.internal.R.drawable.text_edit_paste_window); 10304 10305 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 10306 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 10307 10308 LayoutParams wrapContent = new LayoutParams( 10309 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 10310 10311 mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10312 mPasteTextView.setLayoutParams(wrapContent); 10313 mContentView.addView(mPasteTextView); 10314 mPasteTextView.setText(com.android.internal.R.string.paste); 10315 mPasteTextView.setOnClickListener(this); 10316 10317 mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10318 mReplaceTextView.setLayoutParams(wrapContent); 10319 mContentView.addView(mReplaceTextView); 10320 mReplaceTextView.setText(com.android.internal.R.string.replace); 10321 mReplaceTextView.setOnClickListener(this); 10322 } 10323 10324 @Override 10325 public void show() { 10326 boolean canPaste = canPaste(); 10327 boolean canSuggest = isSuggestionsEnabled() && isCursorInsideSuggestionSpan(); 10328 mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); 10329 mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE); 10330 10331 if (!canPaste && !canSuggest) return; 10332 10333 super.show(); 10334 } 10335 10336 @Override 10337 public void onClick(View view) { 10338 if (view == mPasteTextView && canPaste()) { 10339 onTextContextMenuItem(ID_PASTE); 10340 hide(); 10341 } else if (view == mReplaceTextView) { 10342 final int middle = (getSelectionStart() + getSelectionEnd()) / 2; 10343 stopSelectionActionMode(); 10344 Selection.setSelection((Spannable) mText, middle); 10345 showSuggestions(); 10346 } 10347 } 10348 10349 @Override 10350 protected int getTextOffset() { 10351 return (getSelectionStart() + getSelectionEnd()) / 2; 10352 } 10353 10354 @Override 10355 protected int getVerticalLocalPosition(int line) { 10356 return mLayout.getLineTop(line) - mContentView.getMeasuredHeight(); 10357 } 10358 10359 @Override 10360 protected int clipVertically(int positionY) { 10361 if (positionY < 0) { 10362 final int offset = getTextOffset(); 10363 final int line = mLayout.getLineForOffset(offset); 10364 positionY += mLayout.getLineBottom(line) - mLayout.getLineTop(line); 10365 positionY += mContentView.getMeasuredHeight(); 10366 10367 // Assumes insertion and selection handles share the same height 10368 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 10369 positionY += handle.getIntrinsicHeight(); 10370 } 10371 10372 return positionY; 10373 } 10374 } 10375 10376 private abstract class HandleView extends View implements TextViewPositionListener { 10377 protected Drawable mDrawable; 10378 protected Drawable mDrawableLtr; 10379 protected Drawable mDrawableRtl; 10380 private final PopupWindow mContainer; 10381 // Position with respect to the parent TextView 10382 private int mPositionX, mPositionY; 10383 private boolean mIsDragging; 10384 // Offset from touch position to mPosition 10385 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 10386 protected int mHotspotX; 10387 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 10388 private float mTouchOffsetY; 10389 // Where the touch position should be on the handle to ensure a maximum cursor visibility 10390 private float mIdealVerticalOffset; 10391 // Parent's (TextView) previous position in window 10392 private int mLastParentX, mLastParentY; 10393 // Transient action popup window for Paste and Replace actions 10394 protected ActionPopupWindow mActionPopupWindow; 10395 // Previous text character offset 10396 private int mPreviousOffset = -1; 10397 // Previous text character offset 10398 private boolean mPositionHasChanged = true; 10399 // Used to delay the appearance of the action popup window 10400 private Runnable mActionPopupShower; 10401 10402 public HandleView(Drawable drawableLtr, Drawable drawableRtl) { 10403 super(TextView.this.mContext); 10404 mContainer = new PopupWindow(TextView.this.mContext, null, 10405 com.android.internal.R.attr.textSelectHandleWindowStyle); 10406 mContainer.setSplitTouchEnabled(true); 10407 mContainer.setClippingEnabled(false); 10408 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 10409 mContainer.setContentView(this); 10410 10411 mDrawableLtr = drawableLtr; 10412 mDrawableRtl = drawableRtl; 10413 10414 updateDrawable(); 10415 10416 final int handleHeight = mDrawable.getIntrinsicHeight(); 10417 mTouchOffsetY = -0.3f * handleHeight; 10418 mIdealVerticalOffset = 0.7f * handleHeight; 10419 } 10420 10421 protected void updateDrawable() { 10422 final int offset = getCurrentCursorOffset(); 10423 final boolean isRtlCharAtOffset = mLayout.isRtlCharAt(offset); 10424 mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr; 10425 mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset); 10426 } 10427 10428 protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun); 10429 10430 // Touch-up filter: number of previous positions remembered 10431 private static final int HISTORY_SIZE = 5; 10432 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 10433 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 10434 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 10435 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 10436 private int mPreviousOffsetIndex = 0; 10437 private int mNumberPreviousOffsets = 0; 10438 10439 private void startTouchUpFilter(int offset) { 10440 mNumberPreviousOffsets = 0; 10441 addPositionToTouchUpFilter(offset); 10442 } 10443 10444 private void addPositionToTouchUpFilter(int offset) { 10445 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 10446 mPreviousOffsets[mPreviousOffsetIndex] = offset; 10447 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 10448 mNumberPreviousOffsets++; 10449 } 10450 10451 private void filterOnTouchUp() { 10452 final long now = SystemClock.uptimeMillis(); 10453 int i = 0; 10454 int index = mPreviousOffsetIndex; 10455 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 10456 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 10457 i++; 10458 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 10459 } 10460 10461 if (i > 0 && i < iMax && 10462 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 10463 positionAtCursorOffset(mPreviousOffsets[index], false); 10464 } 10465 } 10466 10467 public boolean offsetHasBeenChanged() { 10468 return mNumberPreviousOffsets > 1; 10469 } 10470 10471 @Override 10472 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 10473 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 10474 } 10475 10476 public void show() { 10477 if (isShowing()) return; 10478 10479 getPositionListener().addSubscriber(this, true /* local position may change */); 10480 10481 // Make sure the offset is always considered new, even when focusing at same position 10482 mPreviousOffset = -1; 10483 positionAtCursorOffset(getCurrentCursorOffset(), false); 10484 10485 hideActionPopupWindow(); 10486 } 10487 10488 protected void dismiss() { 10489 mIsDragging = false; 10490 mContainer.dismiss(); 10491 onDetached(); 10492 } 10493 10494 public void hide() { 10495 dismiss(); 10496 10497 TextView.this.getPositionListener().removeSubscriber(this); 10498 } 10499 10500 void showActionPopupWindow(int delay) { 10501 if (mActionPopupWindow == null) { 10502 mActionPopupWindow = new ActionPopupWindow(); 10503 } 10504 if (mActionPopupShower == null) { 10505 mActionPopupShower = new Runnable() { 10506 public void run() { 10507 mActionPopupWindow.show(); 10508 } 10509 }; 10510 } else { 10511 TextView.this.removeCallbacks(mActionPopupShower); 10512 } 10513 TextView.this.postDelayed(mActionPopupShower, delay); 10514 } 10515 10516 protected void hideActionPopupWindow() { 10517 if (mActionPopupShower != null) { 10518 TextView.this.removeCallbacks(mActionPopupShower); 10519 } 10520 if (mActionPopupWindow != null) { 10521 mActionPopupWindow.hide(); 10522 } 10523 } 10524 10525 public boolean isShowing() { 10526 return mContainer.isShowing(); 10527 } 10528 10529 private boolean isVisible() { 10530 // Always show a dragging handle. 10531 if (mIsDragging) { 10532 return true; 10533 } 10534 10535 if (isInBatchEditMode()) { 10536 return false; 10537 } 10538 10539 return getPositionListener().isVisible(mPositionX + mHotspotX, mPositionY); 10540 } 10541 10542 public abstract int getCurrentCursorOffset(); 10543 10544 protected abstract void updateSelection(int offset); 10545 10546 public abstract void updatePosition(float x, float y); 10547 10548 protected void positionAtCursorOffset(int offset, boolean parentScrolled) { 10549 // A HandleView relies on the layout, which may be nulled by external methods 10550 if (mLayout == null) { 10551 // Will update controllers' state, hiding them and stopping selection mode if needed 10552 prepareCursorControllers(); 10553 return; 10554 } 10555 10556 if (offset != mPreviousOffset || parentScrolled) { 10557 updateSelection(offset); 10558 addPositionToTouchUpFilter(offset); 10559 final int line = mLayout.getLineForOffset(offset); 10560 10561 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 10562 mPositionY = mLayout.getLineBottom(line); 10563 10564 // Take TextView's padding into account. 10565 mPositionX += viewportToContentHorizontalOffset(); 10566 mPositionY += viewportToContentVerticalOffset(); 10567 10568 mPreviousOffset = offset; 10569 mPositionHasChanged = true; 10570 } 10571 } 10572 10573 public void updatePosition(int parentPositionX, int parentPositionY, 10574 boolean parentPositionChanged, boolean parentScrolled) { 10575 positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled); 10576 if (parentPositionChanged || mPositionHasChanged) { 10577 if (mIsDragging) { 10578 // Update touchToWindow offset in case of parent scrolling while dragging 10579 if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { 10580 mTouchToWindowOffsetX += parentPositionX - mLastParentX; 10581 mTouchToWindowOffsetY += parentPositionY - mLastParentY; 10582 mLastParentX = parentPositionX; 10583 mLastParentY = parentPositionY; 10584 } 10585 10586 onHandleMoved(); 10587 } 10588 10589 if (isVisible()) { 10590 final int positionX = parentPositionX + mPositionX; 10591 final int positionY = parentPositionY + mPositionY; 10592 if (isShowing()) { 10593 mContainer.update(positionX, positionY, -1, -1); 10594 } else { 10595 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 10596 positionX, positionY); 10597 } 10598 } else { 10599 if (isShowing()) { 10600 dismiss(); 10601 } 10602 } 10603 10604 mPositionHasChanged = false; 10605 } 10606 } 10607 10608 @Override 10609 protected void onDraw(Canvas c) { 10610 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 10611 mDrawable.draw(c); 10612 } 10613 10614 @Override 10615 public boolean onTouchEvent(MotionEvent ev) { 10616 switch (ev.getActionMasked()) { 10617 case MotionEvent.ACTION_DOWN: { 10618 startTouchUpFilter(getCurrentCursorOffset()); 10619 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 10620 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 10621 10622 final PositionListener positionListener = getPositionListener(); 10623 mLastParentX = positionListener.getPositionX(); 10624 mLastParentY = positionListener.getPositionY(); 10625 mIsDragging = true; 10626 break; 10627 } 10628 10629 case MotionEvent.ACTION_MOVE: { 10630 final float rawX = ev.getRawX(); 10631 final float rawY = ev.getRawY(); 10632 10633 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 10634 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 10635 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 10636 float newVerticalOffset; 10637 if (previousVerticalOffset < mIdealVerticalOffset) { 10638 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 10639 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 10640 } else { 10641 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 10642 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 10643 } 10644 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 10645 10646 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 10647 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 10648 10649 updatePosition(newPosX, newPosY); 10650 break; 10651 } 10652 10653 case MotionEvent.ACTION_UP: 10654 filterOnTouchUp(); 10655 mIsDragging = false; 10656 break; 10657 10658 case MotionEvent.ACTION_CANCEL: 10659 mIsDragging = false; 10660 break; 10661 } 10662 return true; 10663 } 10664 10665 public boolean isDragging() { 10666 return mIsDragging; 10667 } 10668 10669 void onHandleMoved() { 10670 hideActionPopupWindow(); 10671 } 10672 10673 public void onDetached() { 10674 hideActionPopupWindow(); 10675 } 10676 } 10677 10678 private class InsertionHandleView extends HandleView { 10679 private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; 10680 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 10681 10682 // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow 10683 private float mDownPositionX, mDownPositionY; 10684 private Runnable mHider; 10685 10686 public InsertionHandleView(Drawable drawable) { 10687 super(drawable, drawable); 10688 } 10689 10690 @Override 10691 public void show() { 10692 super.show(); 10693 10694 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 10695 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 10696 showActionPopupWindow(0); 10697 } 10698 10699 hideAfterDelay(); 10700 } 10701 10702 public void showWithActionPopup() { 10703 show(); 10704 showActionPopupWindow(0); 10705 } 10706 10707 private void hideAfterDelay() { 10708 removeHiderCallback(); 10709 if (mHider == null) { 10710 mHider = new Runnable() { 10711 public void run() { 10712 hide(); 10713 } 10714 }; 10715 } 10716 TextView.this.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); 10717 } 10718 10719 private void removeHiderCallback() { 10720 if (mHider != null) { 10721 TextView.this.removeCallbacks(mHider); 10722 } 10723 } 10724 10725 @Override 10726 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10727 return drawable.getIntrinsicWidth() / 2; 10728 } 10729 10730 @Override 10731 public boolean onTouchEvent(MotionEvent ev) { 10732 final boolean result = super.onTouchEvent(ev); 10733 10734 switch (ev.getActionMasked()) { 10735 case MotionEvent.ACTION_DOWN: 10736 mDownPositionX = ev.getRawX(); 10737 mDownPositionY = ev.getRawY(); 10738 break; 10739 10740 case MotionEvent.ACTION_UP: 10741 if (!offsetHasBeenChanged()) { 10742 final float deltaX = mDownPositionX - ev.getRawX(); 10743 final float deltaY = mDownPositionY - ev.getRawY(); 10744 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 10745 if (distanceSquared < mSquaredTouchSlopDistance) { 10746 if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { 10747 // Tapping on the handle dismisses the displayed action popup 10748 mActionPopupWindow.hide(); 10749 } else { 10750 showWithActionPopup(); 10751 } 10752 } 10753 } 10754 hideAfterDelay(); 10755 break; 10756 10757 case MotionEvent.ACTION_CANCEL: 10758 hideAfterDelay(); 10759 break; 10760 10761 default: 10762 break; 10763 } 10764 10765 return result; 10766 } 10767 10768 @Override 10769 public int getCurrentCursorOffset() { 10770 return TextView.this.getSelectionStart(); 10771 } 10772 10773 @Override 10774 public void updateSelection(int offset) { 10775 Selection.setSelection((Spannable) mText, offset); 10776 } 10777 10778 @Override 10779 public void updatePosition(float x, float y) { 10780 positionAtCursorOffset(getOffsetForPosition(x, y), false); 10781 } 10782 10783 @Override 10784 void onHandleMoved() { 10785 super.onHandleMoved(); 10786 removeHiderCallback(); 10787 } 10788 10789 @Override 10790 public void onDetached() { 10791 super.onDetached(); 10792 removeHiderCallback(); 10793 } 10794 } 10795 10796 private class SelectionStartHandleView extends HandleView { 10797 10798 public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10799 super(drawableLtr, drawableRtl); 10800 } 10801 10802 @Override 10803 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10804 if (isRtlRun) { 10805 return drawable.getIntrinsicWidth() / 4; 10806 } else { 10807 return (drawable.getIntrinsicWidth() * 3) / 4; 10808 } 10809 } 10810 10811 @Override 10812 public int getCurrentCursorOffset() { 10813 return TextView.this.getSelectionStart(); 10814 } 10815 10816 @Override 10817 public void updateSelection(int offset) { 10818 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 10819 updateDrawable(); 10820 } 10821 10822 @Override 10823 public void updatePosition(float x, float y) { 10824 int offset = getOffsetForPosition(x, y); 10825 10826 // Handles can not cross and selection is at least one character 10827 final int selectionEnd = getSelectionEnd(); 10828 if (offset >= selectionEnd) offset = selectionEnd - 1; 10829 10830 positionAtCursorOffset(offset, false); 10831 } 10832 10833 public ActionPopupWindow getActionPopupWindow() { 10834 return mActionPopupWindow; 10835 } 10836 } 10837 10838 private class SelectionEndHandleView extends HandleView { 10839 10840 public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10841 super(drawableLtr, drawableRtl); 10842 } 10843 10844 @Override 10845 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10846 if (isRtlRun) { 10847 return (drawable.getIntrinsicWidth() * 3) / 4; 10848 } else { 10849 return drawable.getIntrinsicWidth() / 4; 10850 } 10851 } 10852 10853 @Override 10854 public int getCurrentCursorOffset() { 10855 return TextView.this.getSelectionEnd(); 10856 } 10857 10858 @Override 10859 public void updateSelection(int offset) { 10860 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 10861 updateDrawable(); 10862 } 10863 10864 @Override 10865 public void updatePosition(float x, float y) { 10866 int offset = getOffsetForPosition(x, y); 10867 10868 // Handles can not cross and selection is at least one character 10869 final int selectionStart = getSelectionStart(); 10870 if (offset <= selectionStart) offset = selectionStart + 1; 10871 10872 positionAtCursorOffset(offset, false); 10873 } 10874 10875 public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { 10876 mActionPopupWindow = actionPopupWindow; 10877 } 10878 } 10879 10880 /** 10881 * A CursorController instance can be used to control a cursor in the text. 10882 * It is not used outside of {@link TextView}. 10883 * @hide 10884 */ 10885 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 10886 /** 10887 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 10888 * See also {@link #hide()}. 10889 */ 10890 public void show(); 10891 10892 /** 10893 * Hide the cursor controller from screen. 10894 * See also {@link #show()}. 10895 */ 10896 public void hide(); 10897 10898 /** 10899 * Called when the view is detached from window. Perform house keeping task, such as 10900 * stopping Runnable thread that would otherwise keep a reference on the context, thus 10901 * preventing the activity from being recycled. 10902 */ 10903 public void onDetached(); 10904 } 10905 10906 private class InsertionPointCursorController implements CursorController { 10907 private InsertionHandleView mHandle; 10908 10909 public void show() { 10910 getHandle().show(); 10911 } 10912 10913 public void showWithActionPopup() { 10914 getHandle().showWithActionPopup(); 10915 } 10916 10917 public void hide() { 10918 if (mHandle != null) { 10919 mHandle.hide(); 10920 } 10921 } 10922 10923 public void onTouchModeChanged(boolean isInTouchMode) { 10924 if (!isInTouchMode) { 10925 hide(); 10926 } 10927 } 10928 10929 private InsertionHandleView getHandle() { 10930 if (mSelectHandleCenter == null) { 10931 mSelectHandleCenter = mContext.getResources().getDrawable( 10932 mTextSelectHandleRes); 10933 } 10934 if (mHandle == null) { 10935 mHandle = new InsertionHandleView(mSelectHandleCenter); 10936 } 10937 return mHandle; 10938 } 10939 10940 @Override 10941 public void onDetached() { 10942 final ViewTreeObserver observer = getViewTreeObserver(); 10943 observer.removeOnTouchModeChangeListener(this); 10944 10945 if (mHandle != null) mHandle.onDetached(); 10946 } 10947 } 10948 10949 private class SelectionModifierCursorController implements CursorController { 10950 private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds 10951 // The cursor controller handles, lazily created when shown. 10952 private SelectionStartHandleView mStartHandle; 10953 private SelectionEndHandleView mEndHandle; 10954 // The offsets of that last touch down event. Remembered to start selection there. 10955 private int mMinTouchOffset, mMaxTouchOffset; 10956 10957 // Double tap detection 10958 private long mPreviousTapUpTime = 0; 10959 private float mPreviousTapPositionX, mPreviousTapPositionY; 10960 10961 SelectionModifierCursorController() { 10962 resetTouchOffsets(); 10963 } 10964 10965 public void show() { 10966 if (isInBatchEditMode()) { 10967 return; 10968 } 10969 initDrawables(); 10970 initHandles(); 10971 hideInsertionPointCursorController(); 10972 } 10973 10974 private void initDrawables() { 10975 if (mSelectHandleLeft == null) { 10976 mSelectHandleLeft = mContext.getResources().getDrawable( 10977 mTextSelectHandleLeftRes); 10978 } 10979 if (mSelectHandleRight == null) { 10980 mSelectHandleRight = mContext.getResources().getDrawable( 10981 mTextSelectHandleRightRes); 10982 } 10983 } 10984 10985 private void initHandles() { 10986 // Lazy object creation has to be done before updatePosition() is called. 10987 if (mStartHandle == null) { 10988 mStartHandle = new SelectionStartHandleView(mSelectHandleLeft, mSelectHandleRight); 10989 } 10990 if (mEndHandle == null) { 10991 mEndHandle = new SelectionEndHandleView(mSelectHandleRight, mSelectHandleLeft); 10992 } 10993 10994 mStartHandle.show(); 10995 mEndHandle.show(); 10996 10997 // Make sure both left and right handles share the same ActionPopupWindow (so that 10998 // moving any of the handles hides the action popup). 10999 mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); 11000 mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); 11001 11002 hideInsertionPointCursorController(); 11003 } 11004 11005 public void hide() { 11006 if (mStartHandle != null) mStartHandle.hide(); 11007 if (mEndHandle != null) mEndHandle.hide(); 11008 } 11009 11010 public void onTouchEvent(MotionEvent event) { 11011 // This is done even when the View does not have focus, so that long presses can start 11012 // selection and tap can move cursor from this tap position. 11013 switch (event.getActionMasked()) { 11014 case MotionEvent.ACTION_DOWN: 11015 final float x = event.getX(); 11016 final float y = event.getY(); 11017 11018 // Remember finger down position, to be able to start selection from there 11019 mMinTouchOffset = mMaxTouchOffset = getOffsetForPosition(x, y); 11020 11021 // Double tap detection 11022 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 11023 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 11024 isPositionOnText(x, y)) { 11025 final float deltaX = x - mPreviousTapPositionX; 11026 final float deltaY = y - mPreviousTapPositionY; 11027 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 11028 if (distanceSquared < mSquaredTouchSlopDistance) { 11029 startSelectionActionMode(); 11030 mDiscardNextActionUp = true; 11031 } 11032 } 11033 11034 mPreviousTapPositionX = x; 11035 mPreviousTapPositionY = y; 11036 break; 11037 11038 case MotionEvent.ACTION_POINTER_DOWN: 11039 case MotionEvent.ACTION_POINTER_UP: 11040 // Handle multi-point gestures. Keep min and max offset positions. 11041 // Only activated for devices that correctly handle multi-touch. 11042 if (mContext.getPackageManager().hasSystemFeature( 11043 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 11044 updateMinAndMaxOffsets(event); 11045 } 11046 break; 11047 11048 case MotionEvent.ACTION_UP: 11049 mPreviousTapUpTime = SystemClock.uptimeMillis(); 11050 break; 11051 } 11052 } 11053 11054 /** 11055 * @param event 11056 */ 11057 private void updateMinAndMaxOffsets(MotionEvent event) { 11058 int pointerCount = event.getPointerCount(); 11059 for (int index = 0; index < pointerCount; index++) { 11060 int offset = getOffsetForPosition(event.getX(index), event.getY(index)); 11061 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 11062 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 11063 } 11064 } 11065 11066 public int getMinTouchOffset() { 11067 return mMinTouchOffset; 11068 } 11069 11070 public int getMaxTouchOffset() { 11071 return mMaxTouchOffset; 11072 } 11073 11074 public void resetTouchOffsets() { 11075 mMinTouchOffset = mMaxTouchOffset = -1; 11076 } 11077 11078 /** 11079 * @return true iff this controller is currently used to move the selection start. 11080 */ 11081 public boolean isSelectionStartDragged() { 11082 return mStartHandle != null && mStartHandle.isDragging(); 11083 } 11084 11085 public void onTouchModeChanged(boolean isInTouchMode) { 11086 if (!isInTouchMode) { 11087 hide(); 11088 } 11089 } 11090 11091 @Override 11092 public void onDetached() { 11093 final ViewTreeObserver observer = getViewTreeObserver(); 11094 observer.removeOnTouchModeChangeListener(this); 11095 11096 if (mStartHandle != null) mStartHandle.onDetached(); 11097 if (mEndHandle != null) mEndHandle.onDetached(); 11098 } 11099 } 11100 11101 private void hideInsertionPointCursorController() { 11102 // No need to create the controller to hide it. 11103 if (mInsertionPointCursorController != null) { 11104 mInsertionPointCursorController.hide(); 11105 } 11106 } 11107 11108 /** 11109 * Hides the insertion controller and stops text selection mode, hiding the selection controller 11110 */ 11111 private void hideControllers() { 11112 hideCursorControllers(); 11113 hideSpanControllers(); 11114 } 11115 11116 private void hideSpanControllers() { 11117 if (mChangeWatcher != null) { 11118 mChangeWatcher.hideControllers(); 11119 } 11120 } 11121 11122 private void hideCursorControllers() { 11123 hideInsertionPointCursorController(); 11124 stopSelectionActionMode(); 11125 } 11126 11127 /** 11128 * Get the character offset closest to the specified absolute position. A typical use case is to 11129 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 11130 * 11131 * @param x The horizontal absolute position of a point on screen 11132 * @param y The vertical absolute position of a point on screen 11133 * @return the character offset for the character whose position is closest to the specified 11134 * position. Returns -1 if there is no layout. 11135 */ 11136 public int getOffsetForPosition(float x, float y) { 11137 if (getLayout() == null) return -1; 11138 final int line = getLineAtCoordinate(y); 11139 final int offset = getOffsetAtCoordinate(line, x); 11140 return offset; 11141 } 11142 11143 private float convertToLocalHorizontalCoordinate(float x) { 11144 x -= getTotalPaddingLeft(); 11145 // Clamp the position to inside of the view. 11146 x = Math.max(0.0f, x); 11147 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 11148 x += getScrollX(); 11149 return x; 11150 } 11151 11152 private int getLineAtCoordinate(float y) { 11153 y -= getTotalPaddingTop(); 11154 // Clamp the position to inside of the view. 11155 y = Math.max(0.0f, y); 11156 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 11157 y += getScrollY(); 11158 return getLayout().getLineForVertical((int) y); 11159 } 11160 11161 private int getOffsetAtCoordinate(int line, float x) { 11162 x = convertToLocalHorizontalCoordinate(x); 11163 return getLayout().getOffsetForHorizontal(line, x); 11164 } 11165 11166 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 11167 * in the view. Returns false when the position is in the empty space of left/right of text. 11168 */ 11169 private boolean isPositionOnText(float x, float y) { 11170 if (getLayout() == null) return false; 11171 11172 final int line = getLineAtCoordinate(y); 11173 x = convertToLocalHorizontalCoordinate(x); 11174 11175 if (x < getLayout().getLineLeft(line)) return false; 11176 if (x > getLayout().getLineRight(line)) return false; 11177 return true; 11178 } 11179 11180 @Override 11181 public boolean onDragEvent(DragEvent event) { 11182 switch (event.getAction()) { 11183 case DragEvent.ACTION_DRAG_STARTED: 11184 return hasInsertionController(); 11185 11186 case DragEvent.ACTION_DRAG_ENTERED: 11187 TextView.this.requestFocus(); 11188 return true; 11189 11190 case DragEvent.ACTION_DRAG_LOCATION: 11191 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11192 Selection.setSelection((Spannable)mText, offset); 11193 return true; 11194 11195 case DragEvent.ACTION_DROP: 11196 onDrop(event); 11197 return true; 11198 11199 case DragEvent.ACTION_DRAG_ENDED: 11200 case DragEvent.ACTION_DRAG_EXITED: 11201 default: 11202 return true; 11203 } 11204 } 11205 11206 private void onDrop(DragEvent event) { 11207 StringBuilder content = new StringBuilder(""); 11208 ClipData clipData = event.getClipData(); 11209 final int itemCount = clipData.getItemCount(); 11210 for (int i=0; i < itemCount; i++) { 11211 Item item = clipData.getItemAt(i); 11212 content.append(item.coerceToText(TextView.this.mContext)); 11213 } 11214 11215 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11216 11217 Object localState = event.getLocalState(); 11218 DragLocalState dragLocalState = null; 11219 if (localState instanceof DragLocalState) { 11220 dragLocalState = (DragLocalState) localState; 11221 } 11222 boolean dragDropIntoItself = dragLocalState != null && 11223 dragLocalState.sourceTextView == this; 11224 11225 if (dragDropIntoItself) { 11226 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 11227 // A drop inside the original selection discards the drop. 11228 return; 11229 } 11230 } 11231 11232 final int originalLength = mText.length(); 11233 long minMax = prepareSpacesAroundPaste(offset, offset, content); 11234 int min = extractRangeStartFromLong(minMax); 11235 int max = extractRangeEndFromLong(minMax); 11236 11237 Selection.setSelection((Spannable) mText, max); 11238 ((Editable) mText).replace(min, max, content); 11239 11240 if (dragDropIntoItself) { 11241 int dragSourceStart = dragLocalState.start; 11242 int dragSourceEnd = dragLocalState.end; 11243 if (max <= dragSourceStart) { 11244 // Inserting text before selection has shifted positions 11245 final int shift = mText.length() - originalLength; 11246 dragSourceStart += shift; 11247 dragSourceEnd += shift; 11248 } 11249 11250 // Delete original selection 11251 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 11252 11253 // Make sure we do not leave two adjacent spaces. 11254 if ((dragSourceStart == 0 || 11255 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 11256 (dragSourceStart == mText.length() || 11257 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 11258 final int pos = dragSourceStart == mText.length() ? 11259 dragSourceStart - 1 : dragSourceStart; 11260 ((Editable) mText).delete(pos, pos + 1); 11261 } 11262 } 11263 } 11264 11265 /** 11266 * @return True if this view supports insertion handles. 11267 */ 11268 boolean hasInsertionController() { 11269 return mInsertionControllerEnabled; 11270 } 11271 11272 /** 11273 * @return True if this view supports selection handles. 11274 */ 11275 boolean hasSelectionController() { 11276 return mSelectionControllerEnabled; 11277 } 11278 11279 InsertionPointCursorController getInsertionController() { 11280 if (!mInsertionControllerEnabled) { 11281 return null; 11282 } 11283 11284 if (mInsertionPointCursorController == null) { 11285 mInsertionPointCursorController = new InsertionPointCursorController(); 11286 11287 final ViewTreeObserver observer = getViewTreeObserver(); 11288 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 11289 } 11290 11291 return mInsertionPointCursorController; 11292 } 11293 11294 SelectionModifierCursorController getSelectionController() { 11295 if (!mSelectionControllerEnabled) { 11296 return null; 11297 } 11298 11299 if (mSelectionModifierCursorController == null) { 11300 mSelectionModifierCursorController = new SelectionModifierCursorController(); 11301 11302 final ViewTreeObserver observer = getViewTreeObserver(); 11303 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 11304 } 11305 11306 return mSelectionModifierCursorController; 11307 } 11308 11309 boolean isInBatchEditMode() { 11310 final InputMethodState ims = mInputMethodState; 11311 if (ims != null) { 11312 return ims.mBatchEditNesting > 0; 11313 } 11314 return mInBatchEditControllers; 11315 } 11316 11317 @Override 11318 protected void resolveTextDirection() { 11319 if (hasPasswordTransformationMethod()) { 11320 mTextDir = TextDirectionHeuristics.LOCALE; 11321 return; 11322 } 11323 11324 // Always need to resolve layout direction first 11325 final boolean defaultIsRtl = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL); 11326 11327 // Then resolve text direction on the parent 11328 super.resolveTextDirection(); 11329 11330 // Now, we can select the heuristic 11331 int textDir = getResolvedTextDirection(); 11332 switch (textDir) { 11333 default: 11334 case TEXT_DIRECTION_FIRST_STRONG: 11335 mTextDir = (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 11336 TextDirectionHeuristics.FIRSTSTRONG_LTR); 11337 break; 11338 case TEXT_DIRECTION_ANY_RTL: 11339 mTextDir = TextDirectionHeuristics.ANYRTL_LTR; 11340 break; 11341 case TEXT_DIRECTION_LTR: 11342 mTextDir = TextDirectionHeuristics.LTR; 11343 break; 11344 case TEXT_DIRECTION_RTL: 11345 mTextDir = TextDirectionHeuristics.RTL; 11346 break; 11347 } 11348 } 11349 11350 /** 11351 * Subclasses will need to override this method to implement their own way of resolving 11352 * drawables depending on the layout direction. 11353 * 11354 * A call to the super method will be required from the subclasses implementation. 11355 * 11356 */ 11357 protected void resolveDrawables() { 11358 // No need to resolve twice 11359 if (mResolvedDrawables) { 11360 return; 11361 } 11362 // No drawable to resolve 11363 if (mDrawables == null) { 11364 return; 11365 } 11366 // No relative drawable to resolve 11367 if (mDrawables.mDrawableStart == null && mDrawables.mDrawableEnd == null) { 11368 mResolvedDrawables = true; 11369 return; 11370 } 11371 11372 Drawables dr = mDrawables; 11373 switch(getResolvedLayoutDirection()) { 11374 case LAYOUT_DIRECTION_RTL: 11375 if (dr.mDrawableStart != null) { 11376 dr.mDrawableRight = dr.mDrawableStart; 11377 11378 dr.mDrawableSizeRight = dr.mDrawableSizeStart; 11379 dr.mDrawableHeightRight = dr.mDrawableHeightStart; 11380 } 11381 if (dr.mDrawableEnd != null) { 11382 dr.mDrawableLeft = dr.mDrawableEnd; 11383 11384 dr.mDrawableSizeLeft = dr.mDrawableSizeEnd; 11385 dr.mDrawableHeightLeft = dr.mDrawableHeightEnd; 11386 } 11387 break; 11388 11389 case LAYOUT_DIRECTION_LTR: 11390 default: 11391 if (dr.mDrawableStart != null) { 11392 dr.mDrawableLeft = dr.mDrawableStart; 11393 11394 dr.mDrawableSizeLeft = dr.mDrawableSizeStart; 11395 dr.mDrawableHeightLeft = dr.mDrawableHeightStart; 11396 } 11397 if (dr.mDrawableEnd != null) { 11398 dr.mDrawableRight = dr.mDrawableEnd; 11399 11400 dr.mDrawableSizeRight = dr.mDrawableSizeEnd; 11401 dr.mDrawableHeightRight = dr.mDrawableHeightEnd; 11402 } 11403 break; 11404 } 11405 mResolvedDrawables = true; 11406 } 11407 11408 protected void resetResolvedDrawables() { 11409 mResolvedDrawables = false; 11410 } 11411 11412 /** 11413 * @hide 11414 */ 11415 protected void viewClicked(InputMethodManager imm) { 11416 if (imm != null) { 11417 imm.viewClicked(this); 11418 } 11419 } 11420 11421 @ViewDebug.ExportedProperty(category = "text") 11422 private CharSequence mText; 11423 private CharSequence mTransformed; 11424 private BufferType mBufferType = BufferType.NORMAL; 11425 11426 private int mInputType = EditorInfo.TYPE_NULL; 11427 private CharSequence mHint; 11428 private Layout mHintLayout; 11429 11430 private KeyListener mInput; 11431 11432 private MovementMethod mMovement; 11433 private TransformationMethod mTransformation; 11434 private boolean mAllowTransformationLengthChange; 11435 private ChangeWatcher mChangeWatcher; 11436 11437 private ArrayList<TextWatcher> mListeners = null; 11438 11439 // display attributes 11440 private final TextPaint mTextPaint; 11441 private boolean mUserSetTextScaleX; 11442 private final Paint mHighlightPaint; 11443 private int mHighlightColor = 0x6633B5E5; 11444 /** 11445 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 11446 * this field being protected. Will be restored as private when lineHeight 11447 * feature request 3215097 is implemented 11448 * @hide 11449 */ 11450 protected Layout mLayout; 11451 11452 private long mShowCursor; 11453 private Blink mBlink; 11454 private boolean mCursorVisible = true; 11455 11456 // Cursor Controllers. 11457 private InsertionPointCursorController mInsertionPointCursorController; 11458 private SelectionModifierCursorController mSelectionModifierCursorController; 11459 private ActionMode mSelectionActionMode; 11460 private boolean mInsertionControllerEnabled; 11461 private boolean mSelectionControllerEnabled; 11462 private boolean mInBatchEditControllers; 11463 11464 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 11465 // select from the current cursor position. Otherwise, select from long pressed position. 11466 private boolean mDPadCenterIsDown = false; 11467 private boolean mEnterKeyIsDown = false; 11468 private boolean mContextMenuTriggeredByKey = false; 11469 11470 private boolean mSelectAllOnFocus = false; 11471 11472 private int mGravity = Gravity.TOP | Gravity.START; 11473 private boolean mHorizontallyScrolling; 11474 11475 private int mAutoLinkMask; 11476 private boolean mLinksClickable = true; 11477 11478 private float mSpacingMult = 1.0f; 11479 private float mSpacingAdd = 0.0f; 11480 private boolean mTextIsSelectable = false; 11481 11482 private static final int LINES = 1; 11483 private static final int EMS = LINES; 11484 private static final int PIXELS = 2; 11485 11486 private int mMaximum = Integer.MAX_VALUE; 11487 private int mMaxMode = LINES; 11488 private int mMinimum = 0; 11489 private int mMinMode = LINES; 11490 11491 private int mOldMaximum = mMaximum; 11492 private int mOldMaxMode = mMaxMode; 11493 11494 private int mMaxWidth = Integer.MAX_VALUE; 11495 private int mMaxWidthMode = PIXELS; 11496 private int mMinWidth = 0; 11497 private int mMinWidthMode = PIXELS; 11498 11499 private boolean mSingleLine; 11500 private int mDesiredHeightAtMeasure = -1; 11501 private boolean mIncludePad = true; 11502 11503 // tmp primitives, so we don't alloc them on each draw 11504 private Path mHighlightPath; 11505 private boolean mHighlightPathBogus = true; 11506 private static final RectF sTempRect = new RectF(); 11507 11508 // XXX should be much larger 11509 private static final int VERY_WIDE = 1024*1024; 11510 11511 private static final int BLINK = 500; 11512 11513 private static final int ANIMATED_SCROLL_GAP = 250; 11514 private long mLastScroll; 11515 private Scroller mScroller = null; 11516 11517 private BoringLayout.Metrics mBoring; 11518 private BoringLayout.Metrics mHintBoring; 11519 11520 private BoringLayout mSavedLayout, mSavedHintLayout; 11521 11522 private TextDirectionHeuristic mTextDir = null; 11523 11524 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 11525 private InputFilter[] mFilters = NO_FILTERS; 11526 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 11527 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 11528 // System wide time for last cut or copy action. 11529 private static long sLastCutOrCopyTime; 11530 // Used to highlight a word when it is corrected by the IME 11531 private CorrectionHighlighter mCorrectionHighlighter; 11532 // New state used to change background based on whether this TextView is multiline. 11533 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 11534} 11535