Editor.java revision fb9f5be318e4f530eff9964702cfb655a6433f00
1/* 2 * Copyright (C) 2012 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.Context; 23import android.content.Intent; 24import android.content.pm.PackageManager; 25import android.content.res.TypedArray; 26import android.graphics.Canvas; 27import android.graphics.Color; 28import android.graphics.Paint; 29import android.graphics.Path; 30import android.graphics.Rect; 31import android.graphics.RectF; 32import android.graphics.drawable.Drawable; 33import android.inputmethodservice.ExtractEditText; 34import android.os.Bundle; 35import android.os.Handler; 36import android.os.SystemClock; 37import android.provider.Settings; 38import android.text.DynamicLayout; 39import android.text.Editable; 40import android.text.InputType; 41import android.text.Layout; 42import android.text.ParcelableSpan; 43import android.text.Selection; 44import android.text.SpanWatcher; 45import android.text.Spannable; 46import android.text.SpannableStringBuilder; 47import android.text.Spanned; 48import android.text.StaticLayout; 49import android.text.TextUtils; 50import android.text.TextWatcher; 51import android.text.method.KeyListener; 52import android.text.method.MetaKeyKeyListener; 53import android.text.method.MovementMethod; 54import android.text.method.PasswordTransformationMethod; 55import android.text.method.WordIterator; 56import android.text.style.EasyEditSpan; 57import android.text.style.SuggestionRangeSpan; 58import android.text.style.SuggestionSpan; 59import android.text.style.TextAppearanceSpan; 60import android.text.style.URLSpan; 61import android.util.DisplayMetrics; 62import android.util.Log; 63import android.view.ActionMode; 64import android.view.ActionMode.Callback; 65import android.view.DisplayList; 66import android.view.DragEvent; 67import android.view.Gravity; 68import android.view.HardwareCanvas; 69import android.view.LayoutInflater; 70import android.view.Menu; 71import android.view.MenuItem; 72import android.view.MotionEvent; 73import android.view.View; 74import android.view.ViewConfiguration; 75import android.view.ViewGroup; 76import android.view.View.DragShadowBuilder; 77import android.view.View.OnClickListener; 78import android.view.ViewGroup.LayoutParams; 79import android.view.ViewParent; 80import android.view.ViewTreeObserver; 81import android.view.WindowManager; 82import android.view.inputmethod.CorrectionInfo; 83import android.view.inputmethod.EditorInfo; 84import android.view.inputmethod.ExtractedText; 85import android.view.inputmethod.ExtractedTextRequest; 86import android.view.inputmethod.InputConnection; 87import android.view.inputmethod.InputMethodManager; 88import android.widget.AdapterView.OnItemClickListener; 89import android.widget.TextView.Drawables; 90import android.widget.TextView.OnEditorActionListener; 91 92import com.android.internal.util.ArrayUtils; 93import com.android.internal.widget.EditableInputConnection; 94 95import java.text.BreakIterator; 96import java.util.Arrays; 97import java.util.Comparator; 98import java.util.HashMap; 99 100/** 101 * Helper class used by TextView to handle editable text views. 102 * 103 * @hide 104 */ 105public class Editor { 106 static final int BLINK = 500; 107 private static final float[] TEMP_POSITION = new float[2]; 108 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 109 110 // Cursor Controllers. 111 InsertionPointCursorController mInsertionPointCursorController; 112 SelectionModifierCursorController mSelectionModifierCursorController; 113 ActionMode mSelectionActionMode; 114 boolean mInsertionControllerEnabled; 115 boolean mSelectionControllerEnabled; 116 117 // Used to highlight a word when it is corrected by the IME 118 CorrectionHighlighter mCorrectionHighlighter; 119 120 InputContentType mInputContentType; 121 InputMethodState mInputMethodState; 122 123 DisplayList[] mTextDisplayLists; 124 125 boolean mFrozenWithFocus; 126 boolean mSelectionMoved; 127 boolean mTouchFocusSelected; 128 129 KeyListener mKeyListener; 130 int mInputType = EditorInfo.TYPE_NULL; 131 132 boolean mDiscardNextActionUp; 133 boolean mIgnoreActionUpEvent; 134 135 long mShowCursor; 136 Blink mBlink; 137 138 boolean mCursorVisible = true; 139 boolean mSelectAllOnFocus; 140 boolean mTextIsSelectable; 141 142 CharSequence mError; 143 boolean mErrorWasChanged; 144 ErrorPopup mErrorPopup; 145 /** 146 * This flag is set if the TextView tries to display an error before it 147 * is attached to the window (so its position is still unknown). 148 * It causes the error to be shown later, when onAttachedToWindow() 149 * is called. 150 */ 151 boolean mShowErrorAfterAttach; 152 153 boolean mInBatchEditControllers; 154 155 SuggestionsPopupWindow mSuggestionsPopupWindow; 156 SuggestionRangeSpan mSuggestionRangeSpan; 157 Runnable mShowSuggestionRunnable; 158 159 final Drawable[] mCursorDrawable = new Drawable[2]; 160 int mCursorCount; // Current number of used mCursorDrawable: 0 (resource=0), 1 or 2 (split) 161 162 private Drawable mSelectHandleLeft; 163 private Drawable mSelectHandleRight; 164 private Drawable mSelectHandleCenter; 165 166 // Global listener that detects changes in the global position of the TextView 167 private PositionListener mPositionListener; 168 169 float mLastDownPositionX, mLastDownPositionY; 170 Callback mCustomSelectionActionModeCallback; 171 172 // Set when this TextView gained focus with some text selected. Will start selection mode. 173 boolean mCreatedWithASelection; 174 175 private EasyEditSpanController mEasyEditSpanController; 176 177 WordIterator mWordIterator; 178 SpellChecker mSpellChecker; 179 180 private Rect mTempRect; 181 182 private TextView mTextView; 183 184 Editor(TextView textView) { 185 mTextView = textView; 186 mEasyEditSpanController = new EasyEditSpanController(); 187 mTextView.addTextChangedListener(mEasyEditSpanController); 188 } 189 190 void onAttachedToWindow() { 191 if (mShowErrorAfterAttach) { 192 showError(); 193 mShowErrorAfterAttach = false; 194 } 195 196 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 197 // No need to create the controller. 198 // The get method will add the listener on controller creation. 199 if (mInsertionPointCursorController != null) { 200 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 201 } 202 if (mSelectionModifierCursorController != null) { 203 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 204 } 205 updateSpellCheckSpans(0, mTextView.getText().length(), 206 true /* create the spell checker if needed */); 207 } 208 209 void onDetachedFromWindow() { 210 if (mError != null) { 211 hideError(); 212 } 213 214 if (mBlink != null) { 215 mBlink.removeCallbacks(mBlink); 216 } 217 218 if (mInsertionPointCursorController != null) { 219 mInsertionPointCursorController.onDetached(); 220 } 221 222 if (mSelectionModifierCursorController != null) { 223 mSelectionModifierCursorController.onDetached(); 224 } 225 226 if (mShowSuggestionRunnable != null) { 227 mTextView.removeCallbacks(mShowSuggestionRunnable); 228 } 229 230 invalidateTextDisplayList(); 231 232 if (mSpellChecker != null) { 233 mSpellChecker.closeSession(); 234 // Forces the creation of a new SpellChecker next time this window is created. 235 // Will handle the cases where the settings has been changed in the meantime. 236 mSpellChecker = null; 237 } 238 239 hideControllers(); 240 } 241 242 private void showError() { 243 if (mTextView.getWindowToken() == null) { 244 mShowErrorAfterAttach = true; 245 return; 246 } 247 248 if (mErrorPopup == null) { 249 LayoutInflater inflater = LayoutInflater.from(mTextView.getContext()); 250 final TextView err = (TextView) inflater.inflate( 251 com.android.internal.R.layout.textview_hint, null); 252 253 final float scale = mTextView.getResources().getDisplayMetrics().density; 254 mErrorPopup = new ErrorPopup(err, (int)(200 * scale + 0.5f), (int)(50 * scale + 0.5f)); 255 mErrorPopup.setFocusable(false); 256 // The user is entering text, so the input method is needed. We 257 // don't want the popup to be displayed on top of it. 258 mErrorPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 259 } 260 261 TextView tv = (TextView) mErrorPopup.getContentView(); 262 chooseSize(mErrorPopup, mError, tv); 263 tv.setText(mError); 264 265 mErrorPopup.showAsDropDown(mTextView, getErrorX(), getErrorY()); 266 mErrorPopup.fixDirection(mErrorPopup.isAboveAnchor()); 267 } 268 269 public void setError(CharSequence error, Drawable icon) { 270 mError = TextUtils.stringOrSpannedString(error); 271 mErrorWasChanged = true; 272 final Drawables dr = mTextView.mDrawables; 273 if (dr != null) { 274 switch (mTextView.getResolvedLayoutDirection()) { 275 default: 276 case View.LAYOUT_DIRECTION_LTR: 277 mTextView.setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, 278 dr.mDrawableBottom); 279 break; 280 case View.LAYOUT_DIRECTION_RTL: 281 mTextView.setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight, 282 dr.mDrawableBottom); 283 break; 284 } 285 } else { 286 mTextView.setCompoundDrawables(null, null, icon, null); 287 } 288 289 if (mError == null) { 290 if (mErrorPopup != null) { 291 if (mErrorPopup.isShowing()) { 292 mErrorPopup.dismiss(); 293 } 294 295 mErrorPopup = null; 296 } 297 } else { 298 if (mTextView.isFocused()) { 299 showError(); 300 } 301 } 302 } 303 304 private void hideError() { 305 if (mErrorPopup != null) { 306 if (mErrorPopup.isShowing()) { 307 mErrorPopup.dismiss(); 308 } 309 } 310 311 mShowErrorAfterAttach = false; 312 } 313 314 /** 315 * Returns the Y offset to make the pointy top of the error point 316 * at the middle of the error icon. 317 */ 318 private int getErrorX() { 319 /* 320 * The "25" is the distance between the point and the right edge 321 * of the background 322 */ 323 final float scale = mTextView.getResources().getDisplayMetrics().density; 324 325 final Drawables dr = mTextView.mDrawables; 326 return mTextView.getWidth() - mErrorPopup.getWidth() - mTextView.getPaddingRight() - 327 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 328 } 329 330 /** 331 * Returns the Y offset to make the pointy top of the error point 332 * at the bottom of the error icon. 333 */ 334 private int getErrorY() { 335 /* 336 * Compound, not extended, because the icon is not clipped 337 * if the text height is smaller. 338 */ 339 final int compoundPaddingTop = mTextView.getCompoundPaddingTop(); 340 int vspace = mTextView.getBottom() - mTextView.getTop() - 341 mTextView.getCompoundPaddingBottom() - compoundPaddingTop; 342 343 final Drawables dr = mTextView.mDrawables; 344 int icontop = compoundPaddingTop + 345 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 346 347 /* 348 * The "2" is the distance between the point and the top edge 349 * of the background. 350 */ 351 final float scale = mTextView.getResources().getDisplayMetrics().density; 352 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - mTextView.getHeight() - 353 (int) (2 * scale + 0.5f); 354 } 355 356 void createInputContentTypeIfNeeded() { 357 if (mInputContentType == null) { 358 mInputContentType = new InputContentType(); 359 } 360 } 361 362 void createInputMethodStateIfNeeded() { 363 if (mInputMethodState == null) { 364 mInputMethodState = new InputMethodState(); 365 } 366 } 367 368 boolean isCursorVisible() { 369 // The default value is true, even when there is no associated Editor 370 return mCursorVisible && mTextView.isTextEditable(); 371 } 372 373 void prepareCursorControllers() { 374 boolean windowSupportsHandles = false; 375 376 ViewGroup.LayoutParams params = mTextView.getRootView().getLayoutParams(); 377 if (params instanceof WindowManager.LayoutParams) { 378 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 379 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 380 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 381 } 382 383 boolean enabled = windowSupportsHandles && mTextView.getLayout() != null; 384 mInsertionControllerEnabled = enabled && isCursorVisible(); 385 mSelectionControllerEnabled = enabled && mTextView.textCanBeSelected(); 386 387 if (!mInsertionControllerEnabled) { 388 hideInsertionPointCursorController(); 389 if (mInsertionPointCursorController != null) { 390 mInsertionPointCursorController.onDetached(); 391 mInsertionPointCursorController = null; 392 } 393 } 394 395 if (!mSelectionControllerEnabled) { 396 stopSelectionActionMode(); 397 if (mSelectionModifierCursorController != null) { 398 mSelectionModifierCursorController.onDetached(); 399 mSelectionModifierCursorController = null; 400 } 401 } 402 } 403 404 private void hideInsertionPointCursorController() { 405 if (mInsertionPointCursorController != null) { 406 mInsertionPointCursorController.hide(); 407 } 408 } 409 410 /** 411 * Hides the insertion controller and stops text selection mode, hiding the selection controller 412 */ 413 void hideControllers() { 414 hideCursorControllers(); 415 hideSpanControllers(); 416 } 417 418 private void hideSpanControllers() { 419 if (mEasyEditSpanController != null) { 420 mEasyEditSpanController.hide(); 421 } 422 } 423 424 private void hideCursorControllers() { 425 if (mSuggestionsPopupWindow != null && !mSuggestionsPopupWindow.isShowingUp()) { 426 // Should be done before hide insertion point controller since it triggers a show of it 427 mSuggestionsPopupWindow.hide(); 428 } 429 hideInsertionPointCursorController(); 430 stopSelectionActionMode(); 431 } 432 433 /** 434 * Create new SpellCheckSpans on the modified region. 435 */ 436 private void updateSpellCheckSpans(int start, int end, boolean createSpellChecker) { 437 if (mTextView.isTextEditable() && mTextView.isSuggestionsEnabled() && 438 !(mTextView instanceof ExtractEditText)) { 439 if (mSpellChecker == null && createSpellChecker) { 440 mSpellChecker = new SpellChecker(mTextView); 441 } 442 if (mSpellChecker != null) { 443 mSpellChecker.spellCheck(start, end); 444 } 445 } 446 } 447 448 void onScreenStateChanged(int screenState) { 449 switch (screenState) { 450 case View.SCREEN_STATE_ON: 451 resumeBlink(); 452 break; 453 case View.SCREEN_STATE_OFF: 454 suspendBlink(); 455 break; 456 } 457 } 458 459 private void suspendBlink() { 460 if (mBlink != null) { 461 mBlink.cancel(); 462 } 463 } 464 465 private void resumeBlink() { 466 if (mBlink != null) { 467 mBlink.uncancel(); 468 makeBlink(); 469 } 470 } 471 472 void adjustInputType(boolean password, boolean passwordInputType, 473 boolean webPasswordInputType, boolean numberPasswordInputType) { 474 // mInputType has been set from inputType, possibly modified by mInputMethod. 475 // Specialize mInputType to [web]password if we have a text class and the original input 476 // type was a password. 477 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 478 if (password || passwordInputType) { 479 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 480 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 481 } 482 if (webPasswordInputType) { 483 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 484 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 485 } 486 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 487 if (numberPasswordInputType) { 488 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 489 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 490 } 491 } 492 } 493 494 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 495 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 496 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 497 498 int defaultWidthInPixels = mTextView.getResources().getDimensionPixelSize( 499 com.android.internal.R.dimen.textview_error_popup_default_width); 500 Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels, 501 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 502 float max = 0; 503 for (int i = 0; i < l.getLineCount(); i++) { 504 max = Math.max(max, l.getLineWidth(i)); 505 } 506 507 /* 508 * Now set the popup size to be big enough for the text plus the border capped 509 * to DEFAULT_MAX_POPUP_WIDTH 510 */ 511 pop.setWidth(wid + (int) Math.ceil(max)); 512 pop.setHeight(ht + l.getHeight()); 513 } 514 515 void setFrame() { 516 if (mErrorPopup != null) { 517 TextView tv = (TextView) mErrorPopup.getContentView(); 518 chooseSize(mErrorPopup, mError, tv); 519 mErrorPopup.update(mTextView, getErrorX(), getErrorY(), 520 mErrorPopup.getWidth(), mErrorPopup.getHeight()); 521 } 522 } 523 524 /** 525 * Unlike {@link TextView#textCanBeSelected()}, this method is based on the <i>current</i> state 526 * of the TextView. textCanBeSelected() has to be true (this is one of the conditions to have 527 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 528 */ 529 private boolean canSelectText() { 530 return hasSelectionController() && mTextView.getText().length() != 0; 531 } 532 533 /** 534 * It would be better to rely on the input type for everything. A password inputType should have 535 * a password transformation. We should hence use isPasswordInputType instead of this method. 536 * 537 * We should: 538 * - Call setInputType in setKeyListener instead of changing the input type directly (which 539 * would install the correct transformation). 540 * - Refuse the installation of a non-password transformation in setTransformation if the input 541 * type is password. 542 * 543 * However, this is like this for legacy reasons and we cannot break existing apps. This method 544 * is useful since it matches what the user can see (obfuscated text or not). 545 * 546 * @return true if the current transformation method is of the password type. 547 */ 548 private boolean hasPasswordTransformationMethod() { 549 return mTextView.getTransformationMethod() instanceof PasswordTransformationMethod; 550 } 551 552 /** 553 * Adjusts selection to the word under last touch offset. 554 * Return true if the operation was successfully performed. 555 */ 556 private boolean selectCurrentWord() { 557 if (!canSelectText()) { 558 return false; 559 } 560 561 if (hasPasswordTransformationMethod()) { 562 // Always select all on a password field. 563 // Cut/copy menu entries are not available for passwords, but being able to select all 564 // is however useful to delete or paste to replace the entire content. 565 return mTextView.selectAllText(); 566 } 567 568 int inputType = mTextView.getInputType(); 569 int klass = inputType & InputType.TYPE_MASK_CLASS; 570 int variation = inputType & InputType.TYPE_MASK_VARIATION; 571 572 // Specific text field types: select the entire text for these 573 if (klass == InputType.TYPE_CLASS_NUMBER || 574 klass == InputType.TYPE_CLASS_PHONE || 575 klass == InputType.TYPE_CLASS_DATETIME || 576 variation == InputType.TYPE_TEXT_VARIATION_URI || 577 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 578 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 579 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 580 return mTextView.selectAllText(); 581 } 582 583 long lastTouchOffsets = getLastTouchOffsets(); 584 final int minOffset = TextUtils.unpackRangeStartFromLong(lastTouchOffsets); 585 final int maxOffset = TextUtils.unpackRangeEndFromLong(lastTouchOffsets); 586 587 // Safety check in case standard touch event handling has been bypassed 588 if (minOffset < 0 || minOffset >= mTextView.getText().length()) return false; 589 if (maxOffset < 0 || maxOffset >= mTextView.getText().length()) return false; 590 591 int selectionStart, selectionEnd; 592 593 // If a URLSpan (web address, email, phone...) is found at that position, select it. 594 URLSpan[] urlSpans = ((Spanned) mTextView.getText()). 595 getSpans(minOffset, maxOffset, URLSpan.class); 596 if (urlSpans.length >= 1) { 597 URLSpan urlSpan = urlSpans[0]; 598 selectionStart = ((Spanned) mTextView.getText()).getSpanStart(urlSpan); 599 selectionEnd = ((Spanned) mTextView.getText()).getSpanEnd(urlSpan); 600 } else { 601 final WordIterator wordIterator = getWordIterator(); 602 wordIterator.setCharSequence(mTextView.getText(), minOffset, maxOffset); 603 604 selectionStart = wordIterator.getBeginning(minOffset); 605 selectionEnd = wordIterator.getEnd(maxOffset); 606 607 if (selectionStart == BreakIterator.DONE || selectionEnd == BreakIterator.DONE || 608 selectionStart == selectionEnd) { 609 // Possible when the word iterator does not properly handle the text's language 610 long range = getCharRange(minOffset); 611 selectionStart = TextUtils.unpackRangeStartFromLong(range); 612 selectionEnd = TextUtils.unpackRangeEndFromLong(range); 613 } 614 } 615 616 Selection.setSelection((Spannable) mTextView.getText(), selectionStart, selectionEnd); 617 return selectionEnd > selectionStart; 618 } 619 620 void onLocaleChanged() { 621 // Will be re-created on demand in getWordIterator with the proper new locale 622 mWordIterator = null; 623 } 624 625 /** 626 * @hide 627 */ 628 public WordIterator getWordIterator() { 629 if (mWordIterator == null) { 630 mWordIterator = new WordIterator(mTextView.getTextServicesLocale()); 631 } 632 return mWordIterator; 633 } 634 635 private long getCharRange(int offset) { 636 final int textLength = mTextView.getText().length(); 637 if (offset + 1 < textLength) { 638 final char currentChar = mTextView.getText().charAt(offset); 639 final char nextChar = mTextView.getText().charAt(offset + 1); 640 if (Character.isSurrogatePair(currentChar, nextChar)) { 641 return TextUtils.packRangeInLong(offset, offset + 2); 642 } 643 } 644 if (offset < textLength) { 645 return TextUtils.packRangeInLong(offset, offset + 1); 646 } 647 if (offset - 2 >= 0) { 648 final char previousChar = mTextView.getText().charAt(offset - 1); 649 final char previousPreviousChar = mTextView.getText().charAt(offset - 2); 650 if (Character.isSurrogatePair(previousPreviousChar, previousChar)) { 651 return TextUtils.packRangeInLong(offset - 2, offset); 652 } 653 } 654 if (offset - 1 >= 0) { 655 return TextUtils.packRangeInLong(offset - 1, offset); 656 } 657 return TextUtils.packRangeInLong(offset, offset); 658 } 659 660 private boolean touchPositionIsInSelection() { 661 int selectionStart = mTextView.getSelectionStart(); 662 int selectionEnd = mTextView.getSelectionEnd(); 663 664 if (selectionStart == selectionEnd) { 665 return false; 666 } 667 668 if (selectionStart > selectionEnd) { 669 int tmp = selectionStart; 670 selectionStart = selectionEnd; 671 selectionEnd = tmp; 672 Selection.setSelection((Spannable) mTextView.getText(), selectionStart, selectionEnd); 673 } 674 675 SelectionModifierCursorController selectionController = getSelectionController(); 676 int minOffset = selectionController.getMinTouchOffset(); 677 int maxOffset = selectionController.getMaxTouchOffset(); 678 679 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 680 } 681 682 private PositionListener getPositionListener() { 683 if (mPositionListener == null) { 684 mPositionListener = new PositionListener(); 685 } 686 return mPositionListener; 687 } 688 689 private interface TextViewPositionListener { 690 public void updatePosition(int parentPositionX, int parentPositionY, 691 boolean parentPositionChanged, boolean parentScrolled); 692 } 693 694 private boolean isPositionVisible(int positionX, int positionY) { 695 synchronized (TEMP_POSITION) { 696 final float[] position = TEMP_POSITION; 697 position[0] = positionX; 698 position[1] = positionY; 699 View view = mTextView; 700 701 while (view != null) { 702 if (view != mTextView) { 703 // Local scroll is already taken into account in positionX/Y 704 position[0] -= view.getScrollX(); 705 position[1] -= view.getScrollY(); 706 } 707 708 if (position[0] < 0 || position[1] < 0 || 709 position[0] > view.getWidth() || position[1] > view.getHeight()) { 710 return false; 711 } 712 713 if (!view.getMatrix().isIdentity()) { 714 view.getMatrix().mapPoints(position); 715 } 716 717 position[0] += view.getLeft(); 718 position[1] += view.getTop(); 719 720 final ViewParent parent = view.getParent(); 721 if (parent instanceof View) { 722 view = (View) parent; 723 } else { 724 // We've reached the ViewRoot, stop iterating 725 view = null; 726 } 727 } 728 } 729 730 // We've been able to walk up the view hierarchy and the position was never clipped 731 return true; 732 } 733 734 private boolean isOffsetVisible(int offset) { 735 Layout layout = mTextView.getLayout(); 736 final int line = layout.getLineForOffset(offset); 737 final int lineBottom = layout.getLineBottom(line); 738 final int primaryHorizontal = (int) layout.getPrimaryHorizontal(offset); 739 return isPositionVisible(primaryHorizontal + mTextView.viewportToContentHorizontalOffset(), 740 lineBottom + mTextView.viewportToContentVerticalOffset()); 741 } 742 743 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 744 * in the view. Returns false when the position is in the empty space of left/right of text. 745 */ 746 private boolean isPositionOnText(float x, float y) { 747 Layout layout = mTextView.getLayout(); 748 if (layout == null) return false; 749 750 final int line = mTextView.getLineAtCoordinate(y); 751 x = mTextView.convertToLocalHorizontalCoordinate(x); 752 753 if (x < layout.getLineLeft(line)) return false; 754 if (x > layout.getLineRight(line)) return false; 755 return true; 756 } 757 758 public boolean performLongClick(boolean handled) { 759 // Long press in empty space moves cursor and shows the Paste affordance if available. 760 if (!handled && !isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 761 mInsertionControllerEnabled) { 762 final int offset = mTextView.getOffsetForPosition(mLastDownPositionX, 763 mLastDownPositionY); 764 stopSelectionActionMode(); 765 Selection.setSelection((Spannable) mTextView.getText(), offset); 766 getInsertionController().showWithActionPopup(); 767 handled = true; 768 } 769 770 if (!handled && mSelectionActionMode != null) { 771 if (touchPositionIsInSelection()) { 772 // Start a drag 773 final int start = mTextView.getSelectionStart(); 774 final int end = mTextView.getSelectionEnd(); 775 CharSequence selectedText = mTextView.getTransformedText(start, end); 776 ClipData data = ClipData.newPlainText(null, selectedText); 777 DragLocalState localState = new DragLocalState(mTextView, start, end); 778 mTextView.startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 779 stopSelectionActionMode(); 780 } else { 781 getSelectionController().hide(); 782 selectCurrentWord(); 783 getSelectionController().show(); 784 } 785 handled = true; 786 } 787 788 // Start a new selection 789 if (!handled) { 790 handled = startSelectionActionMode(); 791 } 792 793 return handled; 794 } 795 796 private long getLastTouchOffsets() { 797 SelectionModifierCursorController selectionController = getSelectionController(); 798 final int minOffset = selectionController.getMinTouchOffset(); 799 final int maxOffset = selectionController.getMaxTouchOffset(); 800 return TextUtils.packRangeInLong(minOffset, maxOffset); 801 } 802 803 void onFocusChanged(boolean focused, int direction) { 804 mShowCursor = SystemClock.uptimeMillis(); 805 ensureEndedBatchEdit(); 806 807 if (focused) { 808 int selStart = mTextView.getSelectionStart(); 809 int selEnd = mTextView.getSelectionEnd(); 810 811 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 812 // mode for these, unless there was a specific selection already started. 813 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 814 selEnd == mTextView.getText().length(); 815 816 mCreatedWithASelection = mFrozenWithFocus && mTextView.hasSelection() && 817 !isFocusHighlighted; 818 819 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 820 // If a tap was used to give focus to that view, move cursor at tap position. 821 // Has to be done before onTakeFocus, which can be overloaded. 822 final int lastTapPosition = getLastTapPosition(); 823 if (lastTapPosition >= 0) { 824 Selection.setSelection((Spannable) mTextView.getText(), lastTapPosition); 825 } 826 827 // Note this may have to be moved out of the Editor class 828 MovementMethod mMovement = mTextView.getMovementMethod(); 829 if (mMovement != null) { 830 mMovement.onTakeFocus(mTextView, (Spannable) mTextView.getText(), direction); 831 } 832 833 // The DecorView does not have focus when the 'Done' ExtractEditText button is 834 // pressed. Since it is the ViewAncestor's mView, it requests focus before 835 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 836 // This special case ensure that we keep current selection in that case. 837 // It would be better to know why the DecorView does not have focus at that time. 838 if (((mTextView instanceof ExtractEditText) || mSelectionMoved) && 839 selStart >= 0 && selEnd >= 0) { 840 /* 841 * Someone intentionally set the selection, so let them 842 * do whatever it is that they wanted to do instead of 843 * the default on-focus behavior. We reset the selection 844 * here instead of just skipping the onTakeFocus() call 845 * because some movement methods do something other than 846 * just setting the selection in theirs and we still 847 * need to go through that path. 848 */ 849 Selection.setSelection((Spannable) mTextView.getText(), selStart, selEnd); 850 } 851 852 if (mSelectAllOnFocus) { 853 mTextView.selectAllText(); 854 } 855 856 mTouchFocusSelected = true; 857 } 858 859 mFrozenWithFocus = false; 860 mSelectionMoved = false; 861 862 if (mError != null) { 863 showError(); 864 } 865 866 makeBlink(); 867 } else { 868 if (mError != null) { 869 hideError(); 870 } 871 // Don't leave us in the middle of a batch edit. 872 mTextView.onEndBatchEdit(); 873 874 if (mTextView instanceof ExtractEditText) { 875 // terminateTextSelectionMode removes selection, which we want to keep when 876 // ExtractEditText goes out of focus. 877 final int selStart = mTextView.getSelectionStart(); 878 final int selEnd = mTextView.getSelectionEnd(); 879 hideControllers(); 880 Selection.setSelection((Spannable) mTextView.getText(), selStart, selEnd); 881 } else { 882 hideControllers(); 883 downgradeEasyCorrectionSpans(); 884 } 885 886 // No need to create the controller 887 if (mSelectionModifierCursorController != null) { 888 mSelectionModifierCursorController.resetTouchOffsets(); 889 } 890 } 891 } 892 893 /** 894 * Downgrades to simple suggestions all the easy correction spans that are not a spell check 895 * span. 896 */ 897 private void downgradeEasyCorrectionSpans() { 898 CharSequence text = mTextView.getText(); 899 if (text instanceof Spannable) { 900 Spannable spannable = (Spannable) text; 901 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, 902 spannable.length(), SuggestionSpan.class); 903 for (int i = 0; i < suggestionSpans.length; i++) { 904 int flags = suggestionSpans[i].getFlags(); 905 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 906 && (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) { 907 flags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 908 suggestionSpans[i].setFlags(flags); 909 } 910 } 911 } 912 } 913 914 void sendOnTextChanged(int start, int after) { 915 updateSpellCheckSpans(start, start + after, false); 916 917 // Hide the controllers as soon as text is modified (typing, procedural...) 918 // We do not hide the span controllers, since they can be added when a new text is 919 // inserted into the text view (voice IME). 920 hideCursorControllers(); 921 } 922 923 private int getLastTapPosition() { 924 // No need to create the controller at that point, no last tap position saved 925 if (mSelectionModifierCursorController != null) { 926 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 927 if (lastTapPosition >= 0) { 928 // Safety check, should not be possible. 929 if (lastTapPosition > mTextView.getText().length()) { 930 lastTapPosition = mTextView.getText().length(); 931 } 932 return lastTapPosition; 933 } 934 } 935 936 return -1; 937 } 938 939 void onWindowFocusChanged(boolean hasWindowFocus) { 940 if (hasWindowFocus) { 941 if (mBlink != null) { 942 mBlink.uncancel(); 943 makeBlink(); 944 } 945 } else { 946 if (mBlink != null) { 947 mBlink.cancel(); 948 } 949 if (mInputContentType != null) { 950 mInputContentType.enterDown = false; 951 } 952 // Order matters! Must be done before onParentLostFocus to rely on isShowingUp 953 hideControllers(); 954 if (mSuggestionsPopupWindow != null) { 955 mSuggestionsPopupWindow.onParentLostFocus(); 956 } 957 958 // Don't leave us in the middle of a batch edit. 959 mTextView.onEndBatchEdit(); 960 } 961 } 962 963 void onTouchEvent(MotionEvent event) { 964 if (hasSelectionController()) { 965 getSelectionController().onTouchEvent(event); 966 } 967 968 if (mShowSuggestionRunnable != null) { 969 mTextView.removeCallbacks(mShowSuggestionRunnable); 970 mShowSuggestionRunnable = null; 971 } 972 973 if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 974 mLastDownPositionX = event.getX(); 975 mLastDownPositionY = event.getY(); 976 977 // Reset this state; it will be re-set if super.onTouchEvent 978 // causes focus to move to the view. 979 mTouchFocusSelected = false; 980 mIgnoreActionUpEvent = false; 981 } 982 } 983 984 public void beginBatchEdit() { 985 mInBatchEditControllers = true; 986 final InputMethodState ims = mInputMethodState; 987 if (ims != null) { 988 int nesting = ++ims.mBatchEditNesting; 989 if (nesting == 1) { 990 ims.mCursorChanged = false; 991 ims.mChangedDelta = 0; 992 if (ims.mContentChanged) { 993 // We already have a pending change from somewhere else, 994 // so turn this into a full update. 995 ims.mChangedStart = 0; 996 ims.mChangedEnd = mTextView.getText().length(); 997 } else { 998 ims.mChangedStart = EXTRACT_UNKNOWN; 999 ims.mChangedEnd = EXTRACT_UNKNOWN; 1000 ims.mContentChanged = false; 1001 } 1002 mTextView.onBeginBatchEdit(); 1003 } 1004 } 1005 } 1006 1007 public void endBatchEdit() { 1008 mInBatchEditControllers = false; 1009 final InputMethodState ims = mInputMethodState; 1010 if (ims != null) { 1011 int nesting = --ims.mBatchEditNesting; 1012 if (nesting == 0) { 1013 finishBatchEdit(ims); 1014 } 1015 } 1016 } 1017 1018 void ensureEndedBatchEdit() { 1019 final InputMethodState ims = mInputMethodState; 1020 if (ims != null && ims.mBatchEditNesting != 0) { 1021 ims.mBatchEditNesting = 0; 1022 finishBatchEdit(ims); 1023 } 1024 } 1025 1026 void finishBatchEdit(final InputMethodState ims) { 1027 mTextView.onEndBatchEdit(); 1028 1029 if (ims.mContentChanged || ims.mSelectionModeChanged) { 1030 mTextView.updateAfterEdit(); 1031 reportExtractedText(); 1032 } else if (ims.mCursorChanged) { 1033 // Cheezy way to get us to report the current cursor location. 1034 mTextView.invalidateCursor(); 1035 } 1036 } 1037 1038 static final int EXTRACT_NOTHING = -2; 1039 static final int EXTRACT_UNKNOWN = -1; 1040 1041 boolean extractText(ExtractedTextRequest request, ExtractedText outText) { 1042 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 1043 EXTRACT_UNKNOWN, outText); 1044 } 1045 1046 private boolean extractTextInternal(ExtractedTextRequest request, 1047 int partialStartOffset, int partialEndOffset, int delta, 1048 ExtractedText outText) { 1049 final CharSequence content = mTextView.getText(); 1050 if (content != null) { 1051 if (partialStartOffset != EXTRACT_NOTHING) { 1052 final int N = content.length(); 1053 if (partialStartOffset < 0) { 1054 outText.partialStartOffset = outText.partialEndOffset = -1; 1055 partialStartOffset = 0; 1056 partialEndOffset = N; 1057 } else { 1058 // Now use the delta to determine the actual amount of text 1059 // we need. 1060 partialEndOffset += delta; 1061 // Adjust offsets to ensure we contain full spans. 1062 if (content instanceof Spanned) { 1063 Spanned spanned = (Spanned)content; 1064 Object[] spans = spanned.getSpans(partialStartOffset, 1065 partialEndOffset, ParcelableSpan.class); 1066 int i = spans.length; 1067 while (i > 0) { 1068 i--; 1069 int j = spanned.getSpanStart(spans[i]); 1070 if (j < partialStartOffset) partialStartOffset = j; 1071 j = spanned.getSpanEnd(spans[i]); 1072 if (j > partialEndOffset) partialEndOffset = j; 1073 } 1074 } 1075 outText.partialStartOffset = partialStartOffset; 1076 outText.partialEndOffset = partialEndOffset - delta; 1077 1078 if (partialStartOffset > N) { 1079 partialStartOffset = N; 1080 } else if (partialStartOffset < 0) { 1081 partialStartOffset = 0; 1082 } 1083 if (partialEndOffset > N) { 1084 partialEndOffset = N; 1085 } else if (partialEndOffset < 0) { 1086 partialEndOffset = 0; 1087 } 1088 } 1089 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 1090 outText.text = content.subSequence(partialStartOffset, 1091 partialEndOffset); 1092 } else { 1093 outText.text = TextUtils.substring(content, partialStartOffset, 1094 partialEndOffset); 1095 } 1096 } else { 1097 outText.partialStartOffset = 0; 1098 outText.partialEndOffset = 0; 1099 outText.text = ""; 1100 } 1101 outText.flags = 0; 1102 if (MetaKeyKeyListener.getMetaState(content, MetaKeyKeyListener.META_SELECTING) != 0) { 1103 outText.flags |= ExtractedText.FLAG_SELECTING; 1104 } 1105 if (mTextView.isSingleLine()) { 1106 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 1107 } 1108 outText.startOffset = 0; 1109 outText.selectionStart = mTextView.getSelectionStart(); 1110 outText.selectionEnd = mTextView.getSelectionEnd(); 1111 return true; 1112 } 1113 return false; 1114 } 1115 1116 boolean reportExtractedText() { 1117 final Editor.InputMethodState ims = mInputMethodState; 1118 if (ims != null) { 1119 final boolean contentChanged = ims.mContentChanged; 1120 if (contentChanged || ims.mSelectionModeChanged) { 1121 ims.mContentChanged = false; 1122 ims.mSelectionModeChanged = false; 1123 final ExtractedTextRequest req = ims.mExtracting; 1124 if (req != null) { 1125 InputMethodManager imm = InputMethodManager.peekInstance(); 1126 if (imm != null) { 1127 if (TextView.DEBUG_EXTRACT) Log.v(TextView.LOG_TAG, 1128 "Retrieving extracted start=" + ims.mChangedStart + 1129 " end=" + ims.mChangedEnd + 1130 " delta=" + ims.mChangedDelta); 1131 if (ims.mChangedStart < 0 && !contentChanged) { 1132 ims.mChangedStart = EXTRACT_NOTHING; 1133 } 1134 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 1135 ims.mChangedDelta, ims.mTmpExtracted)) { 1136 if (TextView.DEBUG_EXTRACT) Log.v(TextView.LOG_TAG, 1137 "Reporting extracted start=" + 1138 ims.mTmpExtracted.partialStartOffset + 1139 " end=" + ims.mTmpExtracted.partialEndOffset + 1140 ": " + ims.mTmpExtracted.text); 1141 imm.updateExtractedText(mTextView, req.token, ims.mTmpExtracted); 1142 ims.mChangedStart = EXTRACT_UNKNOWN; 1143 ims.mChangedEnd = EXTRACT_UNKNOWN; 1144 ims.mChangedDelta = 0; 1145 ims.mContentChanged = false; 1146 return true; 1147 } 1148 } 1149 } 1150 } 1151 } 1152 return false; 1153 } 1154 1155 void onDraw(Canvas canvas, Layout layout, Path highlight, Paint highlightPaint, 1156 int cursorOffsetVertical) { 1157 final int selectionStart = mTextView.getSelectionStart(); 1158 final int selectionEnd = mTextView.getSelectionEnd(); 1159 1160 final InputMethodState ims = mInputMethodState; 1161 if (ims != null && ims.mBatchEditNesting == 0) { 1162 InputMethodManager imm = InputMethodManager.peekInstance(); 1163 if (imm != null) { 1164 if (imm.isActive(mTextView)) { 1165 boolean reported = false; 1166 if (ims.mContentChanged || ims.mSelectionModeChanged) { 1167 // We are in extract mode and the content has changed 1168 // in some way... just report complete new text to the 1169 // input method. 1170 reported = reportExtractedText(); 1171 } 1172 if (!reported && highlight != null) { 1173 int candStart = -1; 1174 int candEnd = -1; 1175 if (mTextView.getText() instanceof Spannable) { 1176 Spannable sp = (Spannable) mTextView.getText(); 1177 candStart = EditableInputConnection.getComposingSpanStart(sp); 1178 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 1179 } 1180 imm.updateSelection(mTextView, 1181 selectionStart, selectionEnd, candStart, candEnd); 1182 } 1183 } 1184 1185 if (imm.isWatchingCursor(mTextView) && highlight != null) { 1186 highlight.computeBounds(ims.mTmpRectF, true); 1187 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 1188 1189 canvas.getMatrix().mapPoints(ims.mTmpOffset); 1190 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 1191 1192 ims.mTmpRectF.offset(0, cursorOffsetVertical); 1193 1194 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 1195 (int)(ims.mTmpRectF.top + 0.5), 1196 (int)(ims.mTmpRectF.right + 0.5), 1197 (int)(ims.mTmpRectF.bottom + 0.5)); 1198 1199 imm.updateCursor(mTextView, 1200 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 1201 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 1202 } 1203 } 1204 } 1205 1206 if (mCorrectionHighlighter != null) { 1207 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 1208 } 1209 1210 if (highlight != null && selectionStart == selectionEnd && mCursorCount > 0) { 1211 drawCursor(canvas, cursorOffsetVertical); 1212 // Rely on the drawable entirely, do not draw the cursor line. 1213 // Has to be done after the IMM related code above which relies on the highlight. 1214 highlight = null; 1215 } 1216 1217 if (mTextView.canHaveDisplayList() && canvas.isHardwareAccelerated()) { 1218 drawHardwareAccelerated(canvas, layout, highlight, highlightPaint, 1219 cursorOffsetVertical); 1220 } else { 1221 layout.draw(canvas, highlight, highlightPaint, cursorOffsetVertical); 1222 } 1223 } 1224 1225 private void drawHardwareAccelerated(Canvas canvas, Layout layout, Path highlight, 1226 Paint highlightPaint, int cursorOffsetVertical) { 1227 final int width = mTextView.getWidth(); 1228 1229 final long lineRange = layout.getLineRangeForDraw(canvas); 1230 int firstLine = TextUtils.unpackRangeStartFromLong(lineRange); 1231 int lastLine = TextUtils.unpackRangeEndFromLong(lineRange); 1232 if (lastLine < 0) return; 1233 1234 layout.drawBackground(canvas, highlight, highlightPaint, cursorOffsetVertical, 1235 firstLine, lastLine); 1236 1237 if (layout instanceof DynamicLayout) { 1238 if (mTextDisplayLists == null) { 1239 mTextDisplayLists = new DisplayList[ArrayUtils.idealObjectArraySize(0)]; 1240 } 1241 1242 DynamicLayout dynamicLayout = (DynamicLayout) layout; 1243 int[] blockEndLines = dynamicLayout.getBlockEndLines(); 1244 int[] blockIndices = dynamicLayout.getBlockIndices(); 1245 final int numberOfBlocks = dynamicLayout.getNumberOfBlocks(); 1246 1247 final int scrollX = mTextView.getScrollX(); 1248 final int scrollY = mTextView.getScrollY(); 1249 canvas.translate(scrollX, scrollY); 1250 1251 int endOfPreviousBlock = -1; 1252 int searchStartIndex = 0; 1253 for (int i = 0; i < numberOfBlocks; i++) { 1254 int blockEndLine = blockEndLines[i]; 1255 int blockIndex = blockIndices[i]; 1256 1257 final boolean blockIsInvalid = blockIndex == DynamicLayout.INVALID_BLOCK_INDEX; 1258 if (blockIsInvalid) { 1259 blockIndex = getAvailableDisplayListIndex(blockIndices, numberOfBlocks, 1260 searchStartIndex); 1261 // Note how dynamic layout's internal block indices get updated from Editor 1262 blockIndices[i] = blockIndex; 1263 searchStartIndex = blockIndex + 1; 1264 } 1265 1266 DisplayList blockDisplayList = mTextDisplayLists[blockIndex]; 1267 if (blockDisplayList == null) { 1268 blockDisplayList = mTextDisplayLists[blockIndex] = 1269 mTextView.getHardwareRenderer().createDisplayList("Text " + blockIndex); 1270 } else { 1271 if (blockIsInvalid) blockDisplayList.invalidate(); 1272 } 1273 1274 if (!blockDisplayList.isValid()) { 1275 final int blockBeginLine = endOfPreviousBlock + 1; 1276 final int top = layout.getLineTop(blockBeginLine); 1277 final int bottom = layout.getLineBottom(blockEndLine); 1278 1279 final HardwareCanvas hardwareCanvas = blockDisplayList.start(); 1280 try { 1281 hardwareCanvas.setViewport(width, bottom - top); 1282 // The dirty rect should always be null for a display list 1283 hardwareCanvas.onPreDraw(null); 1284 // drawText is always relative to TextView's origin, this translation brings 1285 // this range of text back to the top of the viewport 1286 hardwareCanvas.translate(-scrollX, -top); 1287 layout.drawText(hardwareCanvas, blockBeginLine, blockEndLine); 1288 hardwareCanvas.translate(scrollX, top); 1289 } finally { 1290 hardwareCanvas.onPostDraw(); 1291 blockDisplayList.end(); 1292 blockDisplayList.setLeftTopRightBottom(0, top, width, bottom); 1293 // Same as drawDisplayList below, handled by our TextView's parent 1294 blockDisplayList.setClipChildren(false); 1295 } 1296 } 1297 1298 // TODO When View.USE_DISPLAY_LIST_PROPERTIES is the only code path, the 1299 // width and height parameters should be removed and the bounds set above in 1300 // setLeftTopRightBottom should be used instead for quick rejection. 1301 ((HardwareCanvas) canvas).drawDisplayList(blockDisplayList, null, 1302 0 /* no child clipping, our TextView parent enforces it */); 1303 endOfPreviousBlock = blockEndLine; 1304 1305 canvas.translate(-scrollX, -scrollY); 1306 } 1307 } else { 1308 // Boring layout is used for empty and hint text 1309 layout.drawText(canvas, firstLine, lastLine); 1310 } 1311 } 1312 1313 private int getAvailableDisplayListIndex(int[] blockIndices, int numberOfBlocks, 1314 int searchStartIndex) { 1315 int length = mTextDisplayLists.length; 1316 for (int i = searchStartIndex; i < length; i++) { 1317 boolean blockIndexFound = false; 1318 for (int j = 0; j < numberOfBlocks; j++) { 1319 if (blockIndices[j] == i) { 1320 blockIndexFound = true; 1321 break; 1322 } 1323 } 1324 if (blockIndexFound) continue; 1325 return i; 1326 } 1327 1328 // No available index found, the pool has to grow 1329 int newSize = ArrayUtils.idealIntArraySize(length + 1); 1330 DisplayList[] displayLists = new DisplayList[newSize]; 1331 System.arraycopy(mTextDisplayLists, 0, displayLists, 0, length); 1332 mTextDisplayLists = displayLists; 1333 return length; 1334 } 1335 1336 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 1337 final boolean translate = cursorOffsetVertical != 0; 1338 if (translate) canvas.translate(0, cursorOffsetVertical); 1339 for (int i = 0; i < mCursorCount; i++) { 1340 mCursorDrawable[i].draw(canvas); 1341 } 1342 if (translate) canvas.translate(0, -cursorOffsetVertical); 1343 } 1344 1345 /** 1346 * Invalidates all the sub-display lists that overlap the specified character range 1347 */ 1348 void invalidateTextDisplayList(Layout layout, int start, int end) { 1349 if (mTextDisplayLists != null && layout instanceof DynamicLayout) { 1350 final int firstLine = layout.getLineForOffset(start); 1351 final int lastLine = layout.getLineForOffset(end); 1352 1353 DynamicLayout dynamicLayout = (DynamicLayout) layout; 1354 int[] blockEndLines = dynamicLayout.getBlockEndLines(); 1355 int[] blockIndices = dynamicLayout.getBlockIndices(); 1356 final int numberOfBlocks = dynamicLayout.getNumberOfBlocks(); 1357 1358 int i = 0; 1359 // Skip the blocks before firstLine 1360 while (i < numberOfBlocks) { 1361 if (blockEndLines[i] >= firstLine) break; 1362 i++; 1363 } 1364 1365 // Invalidate all subsequent blocks until lastLine is passed 1366 while (i < numberOfBlocks) { 1367 final int blockIndex = blockIndices[i]; 1368 if (blockIndex != DynamicLayout.INVALID_BLOCK_INDEX) { 1369 mTextDisplayLists[blockIndex].invalidate(); 1370 } 1371 if (blockEndLines[i] >= lastLine) break; 1372 i++; 1373 } 1374 } 1375 } 1376 1377 void invalidateTextDisplayList() { 1378 if (mTextDisplayLists != null) { 1379 for (int i = 0; i < mTextDisplayLists.length; i++) { 1380 if (mTextDisplayLists[i] != null) mTextDisplayLists[i].invalidate(); 1381 } 1382 } 1383 } 1384 1385 void updateCursorsPositions() { 1386 if (mTextView.mCursorDrawableRes == 0) { 1387 mCursorCount = 0; 1388 return; 1389 } 1390 1391 Layout layout = mTextView.getLayout(); 1392 final int offset = mTextView.getSelectionStart(); 1393 final int line = layout.getLineForOffset(offset); 1394 final int top = layout.getLineTop(line); 1395 final int bottom = layout.getLineTop(line + 1); 1396 1397 mCursorCount = layout.isLevelBoundary(offset) ? 2 : 1; 1398 1399 int middle = bottom; 1400 if (mCursorCount == 2) { 1401 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 1402 middle = (top + bottom) >> 1; 1403 } 1404 1405 updateCursorPosition(0, top, middle, layout.getPrimaryHorizontal(offset)); 1406 1407 if (mCursorCount == 2) { 1408 updateCursorPosition(1, middle, bottom, layout.getSecondaryHorizontal(offset)); 1409 } 1410 } 1411 1412 /** 1413 * @return true if the selection mode was actually started. 1414 */ 1415 boolean startSelectionActionMode() { 1416 if (mSelectionActionMode != null) { 1417 // Selection action mode is already started 1418 return false; 1419 } 1420 1421 if (!canSelectText() || !mTextView.requestFocus()) { 1422 Log.w(TextView.LOG_TAG, 1423 "TextView does not support text selection. Action mode cancelled."); 1424 return false; 1425 } 1426 1427 if (!mTextView.hasSelection()) { 1428 // There may already be a selection on device rotation 1429 if (!selectCurrentWord()) { 1430 // No word found under cursor or text selection not permitted. 1431 return false; 1432 } 1433 } 1434 1435 boolean willExtract = extractedTextModeWillBeStarted(); 1436 1437 // Do not start the action mode when extracted text will show up full screen, which would 1438 // immediately hide the newly created action bar and would be visually distracting. 1439 if (!willExtract) { 1440 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 1441 mSelectionActionMode = mTextView.startActionMode(actionModeCallback); 1442 } 1443 1444 final boolean selectionStarted = mSelectionActionMode != null || willExtract; 1445 if (selectionStarted && !mTextView.isTextSelectable()) { 1446 // Show the IME to be able to replace text, except when selecting non editable text. 1447 final InputMethodManager imm = InputMethodManager.peekInstance(); 1448 if (imm != null) { 1449 imm.showSoftInput(mTextView, 0, null); 1450 } 1451 } 1452 1453 return selectionStarted; 1454 } 1455 1456 private boolean extractedTextModeWillBeStarted() { 1457 if (!(mTextView instanceof ExtractEditText)) { 1458 final InputMethodManager imm = InputMethodManager.peekInstance(); 1459 return imm != null && imm.isFullscreenMode(); 1460 } 1461 return false; 1462 } 1463 1464 /** 1465 * @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}. 1466 */ 1467 private boolean isCursorInsideSuggestionSpan() { 1468 CharSequence text = mTextView.getText(); 1469 if (!(text instanceof Spannable)) return false; 1470 1471 SuggestionSpan[] suggestionSpans = ((Spannable) text).getSpans( 1472 mTextView.getSelectionStart(), mTextView.getSelectionEnd(), SuggestionSpan.class); 1473 return (suggestionSpans.length > 0); 1474 } 1475 1476 /** 1477 * @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with 1478 * {@link SuggestionSpan#FLAG_EASY_CORRECT} set. 1479 */ 1480 private boolean isCursorInsideEasyCorrectionSpan() { 1481 Spannable spannable = (Spannable) mTextView.getText(); 1482 SuggestionSpan[] suggestionSpans = spannable.getSpans(mTextView.getSelectionStart(), 1483 mTextView.getSelectionEnd(), SuggestionSpan.class); 1484 for (int i = 0; i < suggestionSpans.length; i++) { 1485 if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) { 1486 return true; 1487 } 1488 } 1489 return false; 1490 } 1491 1492 void onTouchUpEvent(MotionEvent event) { 1493 boolean selectAllGotFocus = mSelectAllOnFocus && mTextView.didTouchFocusSelect(); 1494 hideControllers(); 1495 CharSequence text = mTextView.getText(); 1496 if (!selectAllGotFocus && text.length() > 0) { 1497 // Move cursor 1498 final int offset = mTextView.getOffsetForPosition(event.getX(), event.getY()); 1499 Selection.setSelection((Spannable) text, offset); 1500 if (mSpellChecker != null) { 1501 // When the cursor moves, the word that was typed may need spell check 1502 mSpellChecker.onSelectionChanged(); 1503 } 1504 if (!extractedTextModeWillBeStarted()) { 1505 if (isCursorInsideEasyCorrectionSpan()) { 1506 mShowSuggestionRunnable = new Runnable() { 1507 public void run() { 1508 showSuggestions(); 1509 } 1510 }; 1511 // removeCallbacks is performed on every touch 1512 mTextView.postDelayed(mShowSuggestionRunnable, 1513 ViewConfiguration.getDoubleTapTimeout()); 1514 } else if (hasInsertionController()) { 1515 getInsertionController().show(); 1516 } 1517 } 1518 } 1519 } 1520 1521 protected void stopSelectionActionMode() { 1522 if (mSelectionActionMode != null) { 1523 // This will hide the mSelectionModifierCursorController 1524 mSelectionActionMode.finish(); 1525 } 1526 } 1527 1528 /** 1529 * @return True if this view supports insertion handles. 1530 */ 1531 boolean hasInsertionController() { 1532 return mInsertionControllerEnabled; 1533 } 1534 1535 /** 1536 * @return True if this view supports selection handles. 1537 */ 1538 boolean hasSelectionController() { 1539 return mSelectionControllerEnabled; 1540 } 1541 1542 InsertionPointCursorController getInsertionController() { 1543 if (!mInsertionControllerEnabled) { 1544 return null; 1545 } 1546 1547 if (mInsertionPointCursorController == null) { 1548 mInsertionPointCursorController = new InsertionPointCursorController(); 1549 1550 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 1551 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 1552 } 1553 1554 return mInsertionPointCursorController; 1555 } 1556 1557 SelectionModifierCursorController getSelectionController() { 1558 if (!mSelectionControllerEnabled) { 1559 return null; 1560 } 1561 1562 if (mSelectionModifierCursorController == null) { 1563 mSelectionModifierCursorController = new SelectionModifierCursorController(); 1564 1565 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 1566 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 1567 } 1568 1569 return mSelectionModifierCursorController; 1570 } 1571 1572 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 1573 if (mCursorDrawable[cursorIndex] == null) 1574 mCursorDrawable[cursorIndex] = mTextView.getResources().getDrawable( 1575 mTextView.mCursorDrawableRes); 1576 1577 if (mTempRect == null) mTempRect = new Rect(); 1578 mCursorDrawable[cursorIndex].getPadding(mTempRect); 1579 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 1580 horizontal = Math.max(0.5f, horizontal - 0.5f); 1581 final int left = (int) (horizontal) - mTempRect.left; 1582 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 1583 bottom + mTempRect.bottom); 1584 } 1585 1586 /** 1587 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 1588 * a dictionnary) from the current input method, provided by it calling 1589 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 1590 * implementation flashes the background of the corrected word to provide feedback to the user. 1591 * 1592 * @param info The auto correct info about the text that was corrected. 1593 */ 1594 public void onCommitCorrection(CorrectionInfo info) { 1595 if (mCorrectionHighlighter == null) { 1596 mCorrectionHighlighter = new CorrectionHighlighter(); 1597 } else { 1598 mCorrectionHighlighter.invalidate(false); 1599 } 1600 1601 mCorrectionHighlighter.highlight(info); 1602 } 1603 1604 void showSuggestions() { 1605 if (mSuggestionsPopupWindow == null) { 1606 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 1607 } 1608 hideControllers(); 1609 mSuggestionsPopupWindow.show(); 1610 } 1611 1612 boolean areSuggestionsShown() { 1613 return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing(); 1614 } 1615 1616 void onScrollChanged() { 1617 if (mPositionListener != null) { 1618 mPositionListener.onScrollChanged(); 1619 } 1620 } 1621 1622 /** 1623 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 1624 */ 1625 private boolean shouldBlink() { 1626 if (!isCursorVisible() || !mTextView.isFocused()) return false; 1627 1628 final int start = mTextView.getSelectionStart(); 1629 if (start < 0) return false; 1630 1631 final int end = mTextView.getSelectionEnd(); 1632 if (end < 0) return false; 1633 1634 return start == end; 1635 } 1636 1637 void makeBlink() { 1638 if (shouldBlink()) { 1639 mShowCursor = SystemClock.uptimeMillis(); 1640 if (mBlink == null) mBlink = new Blink(); 1641 mBlink.removeCallbacks(mBlink); 1642 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 1643 } else { 1644 if (mBlink != null) mBlink.removeCallbacks(mBlink); 1645 } 1646 } 1647 1648 private class Blink extends Handler implements Runnable { 1649 private boolean mCancelled; 1650 1651 public void run() { 1652 if (mCancelled) { 1653 return; 1654 } 1655 1656 removeCallbacks(Blink.this); 1657 1658 if (shouldBlink()) { 1659 if (mTextView.getLayout() != null) { 1660 mTextView.invalidateCursorPath(); 1661 } 1662 1663 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 1664 } 1665 } 1666 1667 void cancel() { 1668 if (!mCancelled) { 1669 removeCallbacks(Blink.this); 1670 mCancelled = true; 1671 } 1672 } 1673 1674 void uncancel() { 1675 mCancelled = false; 1676 } 1677 } 1678 1679 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 1680 TextView shadowView = (TextView) View.inflate(mTextView.getContext(), 1681 com.android.internal.R.layout.text_drag_thumbnail, null); 1682 1683 if (shadowView == null) { 1684 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 1685 } 1686 1687 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 1688 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 1689 } 1690 shadowView.setText(text); 1691 shadowView.setTextColor(mTextView.getTextColors()); 1692 1693 shadowView.setTextAppearance(mTextView.getContext(), R.styleable.Theme_textAppearanceLarge); 1694 shadowView.setGravity(Gravity.CENTER); 1695 1696 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 1697 ViewGroup.LayoutParams.WRAP_CONTENT)); 1698 1699 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 1700 shadowView.measure(size, size); 1701 1702 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 1703 shadowView.invalidate(); 1704 return new DragShadowBuilder(shadowView); 1705 } 1706 1707 private static class DragLocalState { 1708 public TextView sourceTextView; 1709 public int start, end; 1710 1711 public DragLocalState(TextView sourceTextView, int start, int end) { 1712 this.sourceTextView = sourceTextView; 1713 this.start = start; 1714 this.end = end; 1715 } 1716 } 1717 1718 void onDrop(DragEvent event) { 1719 StringBuilder content = new StringBuilder(""); 1720 ClipData clipData = event.getClipData(); 1721 final int itemCount = clipData.getItemCount(); 1722 for (int i=0; i < itemCount; i++) { 1723 Item item = clipData.getItemAt(i); 1724 content.append(item.coerceToStyledText(mTextView.getContext())); 1725 } 1726 1727 final int offset = mTextView.getOffsetForPosition(event.getX(), event.getY()); 1728 1729 Object localState = event.getLocalState(); 1730 DragLocalState dragLocalState = null; 1731 if (localState instanceof DragLocalState) { 1732 dragLocalState = (DragLocalState) localState; 1733 } 1734 boolean dragDropIntoItself = dragLocalState != null && 1735 dragLocalState.sourceTextView == mTextView; 1736 1737 if (dragDropIntoItself) { 1738 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 1739 // A drop inside the original selection discards the drop. 1740 return; 1741 } 1742 } 1743 1744 final int originalLength = mTextView.getText().length(); 1745 long minMax = mTextView.prepareSpacesAroundPaste(offset, offset, content); 1746 int min = TextUtils.unpackRangeStartFromLong(minMax); 1747 int max = TextUtils.unpackRangeEndFromLong(minMax); 1748 1749 Selection.setSelection((Spannable) mTextView.getText(), max); 1750 mTextView.replaceText_internal(min, max, content); 1751 1752 if (dragDropIntoItself) { 1753 int dragSourceStart = dragLocalState.start; 1754 int dragSourceEnd = dragLocalState.end; 1755 if (max <= dragSourceStart) { 1756 // Inserting text before selection has shifted positions 1757 final int shift = mTextView.getText().length() - originalLength; 1758 dragSourceStart += shift; 1759 dragSourceEnd += shift; 1760 } 1761 1762 // Delete original selection 1763 mTextView.deleteText_internal(dragSourceStart, dragSourceEnd); 1764 1765 // Make sure we do not leave two adjacent spaces. 1766 CharSequence t = mTextView.getTransformedText(dragSourceStart - 1, dragSourceStart + 1); 1767 if ( (dragSourceStart == 0 || Character.isSpaceChar(t.charAt(0))) && 1768 (dragSourceStart == mTextView.getText().length() || 1769 Character.isSpaceChar(t.charAt(1))) ) { 1770 final int pos = dragSourceStart == mTextView.getText().length() ? 1771 dragSourceStart - 1 : dragSourceStart; 1772 mTextView.deleteText_internal(pos, pos + 1); 1773 } 1774 } 1775 } 1776 1777 /** 1778 * Controls the {@link EasyEditSpan} monitoring when it is added, and when the related 1779 * pop-up should be displayed. 1780 */ 1781 class EasyEditSpanController implements TextWatcher { 1782 1783 private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs 1784 1785 private EasyEditPopupWindow mPopupWindow; 1786 1787 private EasyEditSpan mEasyEditSpan; 1788 1789 private Runnable mHidePopup; 1790 1791 public void hide() { 1792 if (mPopupWindow != null) { 1793 mPopupWindow.hide(); 1794 mTextView.removeCallbacks(mHidePopup); 1795 } 1796 removeSpans(mTextView.getText()); 1797 mEasyEditSpan = null; 1798 } 1799 1800 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1801 // Intentionally empty 1802 } 1803 1804 public void afterTextChanged(Editable s) { 1805 // Intentionally empty 1806 } 1807 1808 /** 1809 * Monitors the changes in the text. 1810 * 1811 * <p>{@link SpanWatcher#onSpanAdded(Spannable, Object, int, int)} cannot be used, 1812 * as the notifications are not sent when a spannable (with spans) is inserted. 1813 */ 1814 public void onTextChanged(CharSequence buffer, int start, int before, int after) { 1815 adjustSpans(buffer, start, after); 1816 1817 if (mTextView.getWindowVisibility() != View.VISIBLE) { 1818 // The window is not visible yet, ignore the text change. 1819 return; 1820 } 1821 1822 if (mTextView.getLayout() == null) { 1823 // The view has not been layout yet, ignore the text change 1824 return; 1825 } 1826 1827 InputMethodManager imm = InputMethodManager.peekInstance(); 1828 if (!(mTextView instanceof ExtractEditText) && imm != null && imm.isFullscreenMode()) { 1829 // The input is in extract mode. We do not have to handle the easy edit in the 1830 // original TextView, as the ExtractEditText will do 1831 return; 1832 } 1833 1834 // Remove the current easy edit span, as the text changed, and remove the pop-up 1835 // (if any) 1836 if (mEasyEditSpan != null) { 1837 if (buffer instanceof Spannable) { 1838 ((Spannable) buffer).removeSpan(mEasyEditSpan); 1839 } 1840 mEasyEditSpan = null; 1841 } 1842 if (mPopupWindow != null && mPopupWindow.isShowing()) { 1843 mPopupWindow.hide(); 1844 } 1845 1846 // Display the new easy edit span (if any). 1847 if (buffer instanceof Spanned) { 1848 mEasyEditSpan = getSpan((Spanned) buffer); 1849 if (mEasyEditSpan != null) { 1850 if (mPopupWindow == null) { 1851 mPopupWindow = new EasyEditPopupWindow(); 1852 mHidePopup = new Runnable() { 1853 @Override 1854 public void run() { 1855 hide(); 1856 } 1857 }; 1858 } 1859 mPopupWindow.show(mEasyEditSpan); 1860 mTextView.removeCallbacks(mHidePopup); 1861 mTextView.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS); 1862 } 1863 } 1864 } 1865 1866 /** 1867 * Adjusts the spans by removing all of them except the last one. 1868 */ 1869 private void adjustSpans(CharSequence buffer, int start, int after) { 1870 // This method enforces that only one easy edit span is attached to the text. 1871 // A better way to enforce this would be to listen for onSpanAdded, but this method 1872 // cannot be used in this scenario as no notification is triggered when a text with 1873 // spans is inserted into a text. 1874 if (buffer instanceof Spannable) { 1875 Spannable spannable = (Spannable) buffer; 1876 EasyEditSpan[] spans = spannable.getSpans(start, start + after, EasyEditSpan.class); 1877 if (spans.length > 0) { 1878 // Assuming there was only one EasyEditSpan before, we only need check to 1879 // check for a duplicate if a new one is found in the modified interval 1880 spans = spannable.getSpans(0, spannable.length(), EasyEditSpan.class); 1881 for (int i = 1; i < spans.length; i++) { 1882 spannable.removeSpan(spans[i]); 1883 } 1884 } 1885 } 1886 } 1887 1888 /** 1889 * Removes all the {@link EasyEditSpan} currently attached. 1890 */ 1891 private void removeSpans(CharSequence buffer) { 1892 if (buffer instanceof Spannable) { 1893 Spannable spannable = (Spannable) buffer; 1894 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 1895 EasyEditSpan.class); 1896 for (int i = 0; i < spans.length; i++) { 1897 spannable.removeSpan(spans[i]); 1898 } 1899 } 1900 } 1901 1902 private EasyEditSpan getSpan(Spanned spanned) { 1903 EasyEditSpan[] easyEditSpans = spanned.getSpans(0, spanned.length(), 1904 EasyEditSpan.class); 1905 if (easyEditSpans.length == 0) { 1906 return null; 1907 } else { 1908 return easyEditSpans[0]; 1909 } 1910 } 1911 } 1912 1913 /** 1914 * Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled 1915 * by {@link EasyEditSpanController}. 1916 */ 1917 private class EasyEditPopupWindow extends PinnedPopupWindow 1918 implements OnClickListener { 1919 private static final int POPUP_TEXT_LAYOUT = 1920 com.android.internal.R.layout.text_edit_action_popup_text; 1921 private TextView mDeleteTextView; 1922 private EasyEditSpan mEasyEditSpan; 1923 1924 @Override 1925 protected void createPopupWindow() { 1926 mPopupWindow = new PopupWindow(mTextView.getContext(), null, 1927 com.android.internal.R.attr.textSelectHandleWindowStyle); 1928 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 1929 mPopupWindow.setClippingEnabled(true); 1930 } 1931 1932 @Override 1933 protected void initContentView() { 1934 LinearLayout linearLayout = new LinearLayout(mTextView.getContext()); 1935 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 1936 mContentView = linearLayout; 1937 mContentView.setBackgroundResource( 1938 com.android.internal.R.drawable.text_edit_side_paste_window); 1939 1940 LayoutInflater inflater = (LayoutInflater)mTextView.getContext(). 1941 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 1942 1943 LayoutParams wrapContent = new LayoutParams( 1944 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 1945 1946 mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 1947 mDeleteTextView.setLayoutParams(wrapContent); 1948 mDeleteTextView.setText(com.android.internal.R.string.delete); 1949 mDeleteTextView.setOnClickListener(this); 1950 mContentView.addView(mDeleteTextView); 1951 } 1952 1953 public void show(EasyEditSpan easyEditSpan) { 1954 mEasyEditSpan = easyEditSpan; 1955 super.show(); 1956 } 1957 1958 @Override 1959 public void onClick(View view) { 1960 if (view == mDeleteTextView) { 1961 Editable editable = (Editable) mTextView.getText(); 1962 int start = editable.getSpanStart(mEasyEditSpan); 1963 int end = editable.getSpanEnd(mEasyEditSpan); 1964 if (start >= 0 && end >= 0) { 1965 mTextView.deleteText_internal(start, end); 1966 } 1967 } 1968 } 1969 1970 @Override 1971 protected int getTextOffset() { 1972 // Place the pop-up at the end of the span 1973 Editable editable = (Editable) mTextView.getText(); 1974 return editable.getSpanEnd(mEasyEditSpan); 1975 } 1976 1977 @Override 1978 protected int getVerticalLocalPosition(int line) { 1979 return mTextView.getLayout().getLineBottom(line); 1980 } 1981 1982 @Override 1983 protected int clipVertically(int positionY) { 1984 // As we display the pop-up below the span, no vertical clipping is required. 1985 return positionY; 1986 } 1987 } 1988 1989 private class PositionListener implements ViewTreeObserver.OnPreDrawListener { 1990 // 3 handles 1991 // 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others) 1992 private final int MAXIMUM_NUMBER_OF_LISTENERS = 6; 1993 private TextViewPositionListener[] mPositionListeners = 1994 new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; 1995 private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; 1996 private boolean mPositionHasChanged = true; 1997 // Absolute position of the TextView with respect to its parent window 1998 private int mPositionX, mPositionY; 1999 private int mNumberOfListeners; 2000 private boolean mScrollHasChanged; 2001 final int[] mTempCoords = new int[2]; 2002 2003 public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { 2004 if (mNumberOfListeners == 0) { 2005 updatePosition(); 2006 ViewTreeObserver vto = mTextView.getViewTreeObserver(); 2007 vto.addOnPreDrawListener(this); 2008 } 2009 2010 int emptySlotIndex = -1; 2011 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 2012 TextViewPositionListener listener = mPositionListeners[i]; 2013 if (listener == positionListener) { 2014 return; 2015 } else if (emptySlotIndex < 0 && listener == null) { 2016 emptySlotIndex = i; 2017 } 2018 } 2019 2020 mPositionListeners[emptySlotIndex] = positionListener; 2021 mCanMove[emptySlotIndex] = canMove; 2022 mNumberOfListeners++; 2023 } 2024 2025 public void removeSubscriber(TextViewPositionListener positionListener) { 2026 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 2027 if (mPositionListeners[i] == positionListener) { 2028 mPositionListeners[i] = null; 2029 mNumberOfListeners--; 2030 break; 2031 } 2032 } 2033 2034 if (mNumberOfListeners == 0) { 2035 ViewTreeObserver vto = mTextView.getViewTreeObserver(); 2036 vto.removeOnPreDrawListener(this); 2037 } 2038 } 2039 2040 public int getPositionX() { 2041 return mPositionX; 2042 } 2043 2044 public int getPositionY() { 2045 return mPositionY; 2046 } 2047 2048 @Override 2049 public boolean onPreDraw() { 2050 updatePosition(); 2051 2052 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 2053 if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) { 2054 TextViewPositionListener positionListener = mPositionListeners[i]; 2055 if (positionListener != null) { 2056 positionListener.updatePosition(mPositionX, mPositionY, 2057 mPositionHasChanged, mScrollHasChanged); 2058 } 2059 } 2060 } 2061 2062 mScrollHasChanged = false; 2063 return true; 2064 } 2065 2066 private void updatePosition() { 2067 mTextView.getLocationInWindow(mTempCoords); 2068 2069 mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; 2070 2071 mPositionX = mTempCoords[0]; 2072 mPositionY = mTempCoords[1]; 2073 } 2074 2075 public void onScrollChanged() { 2076 mScrollHasChanged = true; 2077 } 2078 } 2079 2080 private abstract class PinnedPopupWindow implements TextViewPositionListener { 2081 protected PopupWindow mPopupWindow; 2082 protected ViewGroup mContentView; 2083 int mPositionX, mPositionY; 2084 2085 protected abstract void createPopupWindow(); 2086 protected abstract void initContentView(); 2087 protected abstract int getTextOffset(); 2088 protected abstract int getVerticalLocalPosition(int line); 2089 protected abstract int clipVertically(int positionY); 2090 2091 public PinnedPopupWindow() { 2092 createPopupWindow(); 2093 2094 mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 2095 mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 2096 mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 2097 2098 initContentView(); 2099 2100 LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 2101 ViewGroup.LayoutParams.WRAP_CONTENT); 2102 mContentView.setLayoutParams(wrapContent); 2103 2104 mPopupWindow.setContentView(mContentView); 2105 } 2106 2107 public void show() { 2108 getPositionListener().addSubscriber(this, false /* offset is fixed */); 2109 2110 computeLocalPosition(); 2111 2112 final PositionListener positionListener = getPositionListener(); 2113 updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); 2114 } 2115 2116 protected void measureContent() { 2117 final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); 2118 mContentView.measure( 2119 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 2120 View.MeasureSpec.AT_MOST), 2121 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 2122 View.MeasureSpec.AT_MOST)); 2123 } 2124 2125 /* The popup window will be horizontally centered on the getTextOffset() and vertically 2126 * positioned according to viewportToContentHorizontalOffset. 2127 * 2128 * This method assumes that mContentView has properly been measured from its content. */ 2129 private void computeLocalPosition() { 2130 measureContent(); 2131 final int width = mContentView.getMeasuredWidth(); 2132 final int offset = getTextOffset(); 2133 mPositionX = (int) (mTextView.getLayout().getPrimaryHorizontal(offset) - width / 2.0f); 2134 mPositionX += mTextView.viewportToContentHorizontalOffset(); 2135 2136 final int line = mTextView.getLayout().getLineForOffset(offset); 2137 mPositionY = getVerticalLocalPosition(line); 2138 mPositionY += mTextView.viewportToContentVerticalOffset(); 2139 } 2140 2141 private void updatePosition(int parentPositionX, int parentPositionY) { 2142 int positionX = parentPositionX + mPositionX; 2143 int positionY = parentPositionY + mPositionY; 2144 2145 positionY = clipVertically(positionY); 2146 2147 // Horizontal clipping 2148 final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); 2149 final int width = mContentView.getMeasuredWidth(); 2150 positionX = Math.min(displayMetrics.widthPixels - width, positionX); 2151 positionX = Math.max(0, positionX); 2152 2153 if (isShowing()) { 2154 mPopupWindow.update(positionX, positionY, -1, -1); 2155 } else { 2156 mPopupWindow.showAtLocation(mTextView, Gravity.NO_GRAVITY, 2157 positionX, positionY); 2158 } 2159 } 2160 2161 public void hide() { 2162 mPopupWindow.dismiss(); 2163 getPositionListener().removeSubscriber(this); 2164 } 2165 2166 @Override 2167 public void updatePosition(int parentPositionX, int parentPositionY, 2168 boolean parentPositionChanged, boolean parentScrolled) { 2169 // Either parentPositionChanged or parentScrolled is true, check if still visible 2170 if (isShowing() && isOffsetVisible(getTextOffset())) { 2171 if (parentScrolled) computeLocalPosition(); 2172 updatePosition(parentPositionX, parentPositionY); 2173 } else { 2174 hide(); 2175 } 2176 } 2177 2178 public boolean isShowing() { 2179 return mPopupWindow.isShowing(); 2180 } 2181 } 2182 2183 private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener { 2184 private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE; 2185 private static final int ADD_TO_DICTIONARY = -1; 2186 private static final int DELETE_TEXT = -2; 2187 private SuggestionInfo[] mSuggestionInfos; 2188 private int mNumberOfSuggestions; 2189 private boolean mCursorWasVisibleBeforeSuggestions; 2190 private boolean mIsShowingUp = false; 2191 private SuggestionAdapter mSuggestionsAdapter; 2192 private final Comparator<SuggestionSpan> mSuggestionSpanComparator; 2193 private final HashMap<SuggestionSpan, Integer> mSpansLengths; 2194 2195 private class CustomPopupWindow extends PopupWindow { 2196 public CustomPopupWindow(Context context, int defStyle) { 2197 super(context, null, defStyle); 2198 } 2199 2200 @Override 2201 public void dismiss() { 2202 super.dismiss(); 2203 2204 getPositionListener().removeSubscriber(SuggestionsPopupWindow.this); 2205 2206 // Safe cast since show() checks that mTextView.getText() is an Editable 2207 ((Spannable) mTextView.getText()).removeSpan(mSuggestionRangeSpan); 2208 2209 mTextView.setCursorVisible(mCursorWasVisibleBeforeSuggestions); 2210 if (hasInsertionController()) { 2211 getInsertionController().show(); 2212 } 2213 } 2214 } 2215 2216 public SuggestionsPopupWindow() { 2217 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 2218 mSuggestionSpanComparator = new SuggestionSpanComparator(); 2219 mSpansLengths = new HashMap<SuggestionSpan, Integer>(); 2220 } 2221 2222 @Override 2223 protected void createPopupWindow() { 2224 mPopupWindow = new CustomPopupWindow(mTextView.getContext(), 2225 com.android.internal.R.attr.textSuggestionsWindowStyle); 2226 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 2227 mPopupWindow.setFocusable(true); 2228 mPopupWindow.setClippingEnabled(false); 2229 } 2230 2231 @Override 2232 protected void initContentView() { 2233 ListView listView = new ListView(mTextView.getContext()); 2234 mSuggestionsAdapter = new SuggestionAdapter(); 2235 listView.setAdapter(mSuggestionsAdapter); 2236 listView.setOnItemClickListener(this); 2237 mContentView = listView; 2238 2239 // Inflate the suggestion items once and for all. + 2 for add to dictionary and delete 2240 mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2]; 2241 for (int i = 0; i < mSuggestionInfos.length; i++) { 2242 mSuggestionInfos[i] = new SuggestionInfo(); 2243 } 2244 } 2245 2246 public boolean isShowingUp() { 2247 return mIsShowingUp; 2248 } 2249 2250 public void onParentLostFocus() { 2251 mIsShowingUp = false; 2252 } 2253 2254 private class SuggestionInfo { 2255 int suggestionStart, suggestionEnd; // range of actual suggestion within text 2256 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 2257 int suggestionIndex; // the index of this suggestion inside suggestionSpan 2258 SpannableStringBuilder text = new SpannableStringBuilder(); 2259 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mTextView.getContext(), 2260 android.R.style.TextAppearance_SuggestionHighlight); 2261 } 2262 2263 private class SuggestionAdapter extends BaseAdapter { 2264 private LayoutInflater mInflater = (LayoutInflater) mTextView.getContext(). 2265 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 2266 2267 @Override 2268 public int getCount() { 2269 return mNumberOfSuggestions; 2270 } 2271 2272 @Override 2273 public Object getItem(int position) { 2274 return mSuggestionInfos[position]; 2275 } 2276 2277 @Override 2278 public long getItemId(int position) { 2279 return position; 2280 } 2281 2282 @Override 2283 public View getView(int position, View convertView, ViewGroup parent) { 2284 TextView textView = (TextView) convertView; 2285 2286 if (textView == null) { 2287 textView = (TextView) mInflater.inflate(mTextView.mTextEditSuggestionItemLayout, 2288 parent, false); 2289 } 2290 2291 final SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 2292 textView.setText(suggestionInfo.text); 2293 2294 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 2295 textView.setCompoundDrawablesWithIntrinsicBounds( 2296 com.android.internal.R.drawable.ic_suggestions_add, 0, 0, 0); 2297 } else if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 2298 textView.setCompoundDrawablesWithIntrinsicBounds( 2299 com.android.internal.R.drawable.ic_suggestions_delete, 0, 0, 0); 2300 } else { 2301 textView.setCompoundDrawables(null, null, null, null); 2302 } 2303 2304 return textView; 2305 } 2306 } 2307 2308 private class SuggestionSpanComparator implements Comparator<SuggestionSpan> { 2309 public int compare(SuggestionSpan span1, SuggestionSpan span2) { 2310 final int flag1 = span1.getFlags(); 2311 final int flag2 = span2.getFlags(); 2312 if (flag1 != flag2) { 2313 // The order here should match what is used in updateDrawState 2314 final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 2315 final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 2316 final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0; 2317 final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0; 2318 if (easy1 && !misspelled1) return -1; 2319 if (easy2 && !misspelled2) return 1; 2320 if (misspelled1) return -1; 2321 if (misspelled2) return 1; 2322 } 2323 2324 return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue(); 2325 } 2326 } 2327 2328 /** 2329 * Returns the suggestion spans that cover the current cursor position. The suggestion 2330 * spans are sorted according to the length of text that they are attached to. 2331 */ 2332 private SuggestionSpan[] getSuggestionSpans() { 2333 int pos = mTextView.getSelectionStart(); 2334 Spannable spannable = (Spannable) mTextView.getText(); 2335 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 2336 2337 mSpansLengths.clear(); 2338 for (SuggestionSpan suggestionSpan : suggestionSpans) { 2339 int start = spannable.getSpanStart(suggestionSpan); 2340 int end = spannable.getSpanEnd(suggestionSpan); 2341 mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start)); 2342 } 2343 2344 // The suggestions are sorted according to their types (easy correction first, then 2345 // misspelled) and to the length of the text that they cover (shorter first). 2346 Arrays.sort(suggestionSpans, mSuggestionSpanComparator); 2347 return suggestionSpans; 2348 } 2349 2350 @Override 2351 public void show() { 2352 if (!(mTextView.getText() instanceof Editable)) return; 2353 2354 if (updateSuggestions()) { 2355 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 2356 mTextView.setCursorVisible(false); 2357 mIsShowingUp = true; 2358 super.show(); 2359 } 2360 } 2361 2362 @Override 2363 protected void measureContent() { 2364 final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); 2365 final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec( 2366 displayMetrics.widthPixels, View.MeasureSpec.AT_MOST); 2367 final int verticalMeasure = View.MeasureSpec.makeMeasureSpec( 2368 displayMetrics.heightPixels, View.MeasureSpec.AT_MOST); 2369 2370 int width = 0; 2371 View view = null; 2372 for (int i = 0; i < mNumberOfSuggestions; i++) { 2373 view = mSuggestionsAdapter.getView(i, view, mContentView); 2374 view.getLayoutParams().width = LayoutParams.WRAP_CONTENT; 2375 view.measure(horizontalMeasure, verticalMeasure); 2376 width = Math.max(width, view.getMeasuredWidth()); 2377 } 2378 2379 // Enforce the width based on actual text widths 2380 mContentView.measure( 2381 View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), 2382 verticalMeasure); 2383 2384 Drawable popupBackground = mPopupWindow.getBackground(); 2385 if (popupBackground != null) { 2386 if (mTempRect == null) mTempRect = new Rect(); 2387 popupBackground.getPadding(mTempRect); 2388 width += mTempRect.left + mTempRect.right; 2389 } 2390 mPopupWindow.setWidth(width); 2391 } 2392 2393 @Override 2394 protected int getTextOffset() { 2395 return mTextView.getSelectionStart(); 2396 } 2397 2398 @Override 2399 protected int getVerticalLocalPosition(int line) { 2400 return mTextView.getLayout().getLineBottom(line); 2401 } 2402 2403 @Override 2404 protected int clipVertically(int positionY) { 2405 final int height = mContentView.getMeasuredHeight(); 2406 final DisplayMetrics displayMetrics = mTextView.getResources().getDisplayMetrics(); 2407 return Math.min(positionY, displayMetrics.heightPixels - height); 2408 } 2409 2410 @Override 2411 public void hide() { 2412 super.hide(); 2413 } 2414 2415 private boolean updateSuggestions() { 2416 Spannable spannable = (Spannable) mTextView.getText(); 2417 SuggestionSpan[] suggestionSpans = getSuggestionSpans(); 2418 2419 final int nbSpans = suggestionSpans.length; 2420 // Suggestions are shown after a delay: the underlying spans may have been removed 2421 if (nbSpans == 0) return false; 2422 2423 mNumberOfSuggestions = 0; 2424 int spanUnionStart = mTextView.getText().length(); 2425 int spanUnionEnd = 0; 2426 2427 SuggestionSpan misspelledSpan = null; 2428 int underlineColor = 0; 2429 2430 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 2431 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 2432 final int spanStart = spannable.getSpanStart(suggestionSpan); 2433 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 2434 spanUnionStart = Math.min(spanStart, spanUnionStart); 2435 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 2436 2437 if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) { 2438 misspelledSpan = suggestionSpan; 2439 } 2440 2441 // The first span dictates the background color of the highlighted text 2442 if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor(); 2443 2444 String[] suggestions = suggestionSpan.getSuggestions(); 2445 int nbSuggestions = suggestions.length; 2446 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 2447 String suggestion = suggestions[suggestionIndex]; 2448 2449 boolean suggestionIsDuplicate = false; 2450 for (int i = 0; i < mNumberOfSuggestions; i++) { 2451 if (mSuggestionInfos[i].text.toString().equals(suggestion)) { 2452 SuggestionSpan otherSuggestionSpan = mSuggestionInfos[i].suggestionSpan; 2453 final int otherSpanStart = spannable.getSpanStart(otherSuggestionSpan); 2454 final int otherSpanEnd = spannable.getSpanEnd(otherSuggestionSpan); 2455 if (spanStart == otherSpanStart && spanEnd == otherSpanEnd) { 2456 suggestionIsDuplicate = true; 2457 break; 2458 } 2459 } 2460 } 2461 2462 if (!suggestionIsDuplicate) { 2463 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 2464 suggestionInfo.suggestionSpan = suggestionSpan; 2465 suggestionInfo.suggestionIndex = suggestionIndex; 2466 suggestionInfo.text.replace(0, suggestionInfo.text.length(), suggestion); 2467 2468 mNumberOfSuggestions++; 2469 2470 if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) { 2471 // Also end outer for loop 2472 spanIndex = nbSpans; 2473 break; 2474 } 2475 } 2476 } 2477 } 2478 2479 for (int i = 0; i < mNumberOfSuggestions; i++) { 2480 highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd); 2481 } 2482 2483 // Add "Add to dictionary" item if there is a span with the misspelled flag 2484 if (misspelledSpan != null) { 2485 final int misspelledStart = spannable.getSpanStart(misspelledSpan); 2486 final int misspelledEnd = spannable.getSpanEnd(misspelledSpan); 2487 if (misspelledStart >= 0 && misspelledEnd > misspelledStart) { 2488 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 2489 suggestionInfo.suggestionSpan = misspelledSpan; 2490 suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY; 2491 suggestionInfo.text.replace(0, suggestionInfo.text.length(), mTextView. 2492 getContext().getString(com.android.internal.R.string.addToDictionary)); 2493 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 2494 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2495 2496 mNumberOfSuggestions++; 2497 } 2498 } 2499 2500 // Delete item 2501 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 2502 suggestionInfo.suggestionSpan = null; 2503 suggestionInfo.suggestionIndex = DELETE_TEXT; 2504 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 2505 mTextView.getContext().getString(com.android.internal.R.string.deleteText)); 2506 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 2507 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2508 mNumberOfSuggestions++; 2509 2510 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 2511 if (underlineColor == 0) { 2512 // Fallback on the default highlight color when the first span does not provide one 2513 mSuggestionRangeSpan.setBackgroundColor(mTextView.mHighlightColor); 2514 } else { 2515 final float BACKGROUND_TRANSPARENCY = 0.4f; 2516 final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY); 2517 mSuggestionRangeSpan.setBackgroundColor( 2518 (underlineColor & 0x00FFFFFF) + (newAlpha << 24)); 2519 } 2520 spannable.setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 2521 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2522 2523 mSuggestionsAdapter.notifyDataSetChanged(); 2524 return true; 2525 } 2526 2527 private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart, 2528 int unionEnd) { 2529 final Spannable text = (Spannable) mTextView.getText(); 2530 final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan); 2531 final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan); 2532 2533 // Adjust the start/end of the suggestion span 2534 suggestionInfo.suggestionStart = spanStart - unionStart; 2535 suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart 2536 + suggestionInfo.text.length(); 2537 2538 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 2539 suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2540 2541 // Add the text before and after the span. 2542 final String textAsString = text.toString(); 2543 suggestionInfo.text.insert(0, textAsString.substring(unionStart, spanStart)); 2544 suggestionInfo.text.append(textAsString.substring(spanEnd, unionEnd)); 2545 } 2546 2547 @Override 2548 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 2549 Editable editable = (Editable) mTextView.getText(); 2550 SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 2551 2552 if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 2553 final int spanUnionStart = editable.getSpanStart(mSuggestionRangeSpan); 2554 int spanUnionEnd = editable.getSpanEnd(mSuggestionRangeSpan); 2555 if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) { 2556 // Do not leave two adjacent spaces after deletion, or one at beginning of text 2557 if (spanUnionEnd < editable.length() && 2558 Character.isSpaceChar(editable.charAt(spanUnionEnd)) && 2559 (spanUnionStart == 0 || 2560 Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) { 2561 spanUnionEnd = spanUnionEnd + 1; 2562 } 2563 mTextView.deleteText_internal(spanUnionStart, spanUnionEnd); 2564 } 2565 hide(); 2566 return; 2567 } 2568 2569 final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan); 2570 final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan); 2571 if (spanStart < 0 || spanEnd <= spanStart) { 2572 // Span has been removed 2573 hide(); 2574 return; 2575 } 2576 2577 final String originalText = editable.toString().substring(spanStart, spanEnd); 2578 2579 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 2580 Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT); 2581 intent.putExtra("word", originalText); 2582 intent.putExtra("locale", mTextView.getTextServicesLocale().toString()); 2583 intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 2584 mTextView.getContext().startActivity(intent); 2585 // There is no way to know if the word was indeed added. Re-check. 2586 // TODO The ExtractEditText should remove the span in the original text instead 2587 editable.removeSpan(suggestionInfo.suggestionSpan); 2588 Selection.setSelection(editable, spanEnd); 2589 updateSpellCheckSpans(spanStart, spanEnd, false); 2590 } else { 2591 // SuggestionSpans are removed by replace: save them before 2592 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 2593 SuggestionSpan.class); 2594 final int length = suggestionSpans.length; 2595 int[] suggestionSpansStarts = new int[length]; 2596 int[] suggestionSpansEnds = new int[length]; 2597 int[] suggestionSpansFlags = new int[length]; 2598 for (int i = 0; i < length; i++) { 2599 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 2600 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 2601 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 2602 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 2603 2604 // Remove potential misspelled flags 2605 int suggestionSpanFlags = suggestionSpan.getFlags(); 2606 if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) { 2607 suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED; 2608 suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 2609 suggestionSpan.setFlags(suggestionSpanFlags); 2610 } 2611 } 2612 2613 final int suggestionStart = suggestionInfo.suggestionStart; 2614 final int suggestionEnd = suggestionInfo.suggestionEnd; 2615 final String suggestion = suggestionInfo.text.subSequence( 2616 suggestionStart, suggestionEnd).toString(); 2617 mTextView.replaceText_internal(spanStart, spanEnd, suggestion); 2618 2619 // Notify source IME of the suggestion pick. Do this before swaping texts. 2620 if (!TextUtils.isEmpty( 2621 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 2622 InputMethodManager imm = InputMethodManager.peekInstance(); 2623 if (imm != null) { 2624 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 2625 suggestionInfo.suggestionIndex); 2626 } 2627 } 2628 2629 // Swap text content between actual text and Suggestion span 2630 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 2631 suggestions[suggestionInfo.suggestionIndex] = originalText; 2632 2633 // Restore previous SuggestionSpans 2634 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 2635 for (int i = 0; i < length; i++) { 2636 // Only spans that include the modified region make sense after replacement 2637 // Spans partially included in the replaced region are removed, there is no 2638 // way to assign them a valid range after replacement 2639 if (suggestionSpansStarts[i] <= spanStart && 2640 suggestionSpansEnds[i] >= spanEnd) { 2641 mTextView.setSpan_internal(suggestionSpans[i], suggestionSpansStarts[i], 2642 suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]); 2643 } 2644 } 2645 2646 // Move cursor at the end of the replaced word 2647 final int newCursorPosition = spanEnd + lengthDifference; 2648 mTextView.setCursorPosition_internal(newCursorPosition, newCursorPosition); 2649 } 2650 2651 hide(); 2652 } 2653 } 2654 2655 /** 2656 * An ActionMode Callback class that is used to provide actions while in text selection mode. 2657 * 2658 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 2659 * on which of these this TextView supports. 2660 */ 2661 private class SelectionActionModeCallback implements ActionMode.Callback { 2662 2663 @Override 2664 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 2665 TypedArray styledAttributes = mTextView.getContext().obtainStyledAttributes( 2666 com.android.internal.R.styleable.SelectionModeDrawables); 2667 2668 boolean allowText = mTextView.getContext().getResources().getBoolean( 2669 com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon); 2670 2671 mode.setTitle(mTextView.getContext().getString( 2672 com.android.internal.R.string.textSelectionCABTitle)); 2673 mode.setSubtitle(null); 2674 mode.setTitleOptionalHint(true); 2675 2676 int selectAllIconId = 0; // No icon by default 2677 if (!allowText) { 2678 // Provide an icon, text will not be displayed on smaller screens. 2679 selectAllIconId = styledAttributes.getResourceId( 2680 R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0); 2681 } 2682 2683 menu.add(0, TextView.ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 2684 setIcon(selectAllIconId). 2685 setAlphabeticShortcut('a'). 2686 setShowAsAction( 2687 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 2688 2689 if (mTextView.canCut()) { 2690 menu.add(0, TextView.ID_CUT, 0, com.android.internal.R.string.cut). 2691 setIcon(styledAttributes.getResourceId( 2692 R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)). 2693 setAlphabeticShortcut('x'). 2694 setShowAsAction( 2695 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 2696 } 2697 2698 if (mTextView.canCopy()) { 2699 menu.add(0, TextView.ID_COPY, 0, com.android.internal.R.string.copy). 2700 setIcon(styledAttributes.getResourceId( 2701 R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)). 2702 setAlphabeticShortcut('c'). 2703 setShowAsAction( 2704 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 2705 } 2706 2707 if (mTextView.canPaste()) { 2708 menu.add(0, TextView.ID_PASTE, 0, com.android.internal.R.string.paste). 2709 setIcon(styledAttributes.getResourceId( 2710 R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)). 2711 setAlphabeticShortcut('v'). 2712 setShowAsAction( 2713 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 2714 } 2715 2716 styledAttributes.recycle(); 2717 2718 if (mCustomSelectionActionModeCallback != null) { 2719 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 2720 // The custom mode can choose to cancel the action mode 2721 return false; 2722 } 2723 } 2724 2725 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 2726 getSelectionController().show(); 2727 return true; 2728 } else { 2729 return false; 2730 } 2731 } 2732 2733 @Override 2734 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 2735 if (mCustomSelectionActionModeCallback != null) { 2736 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 2737 } 2738 return true; 2739 } 2740 2741 @Override 2742 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 2743 if (mCustomSelectionActionModeCallback != null && 2744 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 2745 return true; 2746 } 2747 return mTextView.onTextContextMenuItem(item.getItemId()); 2748 } 2749 2750 @Override 2751 public void onDestroyActionMode(ActionMode mode) { 2752 if (mCustomSelectionActionModeCallback != null) { 2753 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 2754 } 2755 Selection.setSelection((Spannable) mTextView.getText(), mTextView.getSelectionEnd()); 2756 2757 if (mSelectionModifierCursorController != null) { 2758 mSelectionModifierCursorController.hide(); 2759 } 2760 2761 mSelectionActionMode = null; 2762 } 2763 } 2764 2765 private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { 2766 private static final int POPUP_TEXT_LAYOUT = 2767 com.android.internal.R.layout.text_edit_action_popup_text; 2768 private TextView mPasteTextView; 2769 private TextView mReplaceTextView; 2770 2771 @Override 2772 protected void createPopupWindow() { 2773 mPopupWindow = new PopupWindow(mTextView.getContext(), null, 2774 com.android.internal.R.attr.textSelectHandleWindowStyle); 2775 mPopupWindow.setClippingEnabled(true); 2776 } 2777 2778 @Override 2779 protected void initContentView() { 2780 LinearLayout linearLayout = new LinearLayout(mTextView.getContext()); 2781 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 2782 mContentView = linearLayout; 2783 mContentView.setBackgroundResource( 2784 com.android.internal.R.drawable.text_edit_paste_window); 2785 2786 LayoutInflater inflater = (LayoutInflater) mTextView.getContext(). 2787 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 2788 2789 LayoutParams wrapContent = new LayoutParams( 2790 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 2791 2792 mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 2793 mPasteTextView.setLayoutParams(wrapContent); 2794 mContentView.addView(mPasteTextView); 2795 mPasteTextView.setText(com.android.internal.R.string.paste); 2796 mPasteTextView.setOnClickListener(this); 2797 2798 mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 2799 mReplaceTextView.setLayoutParams(wrapContent); 2800 mContentView.addView(mReplaceTextView); 2801 mReplaceTextView.setText(com.android.internal.R.string.replace); 2802 mReplaceTextView.setOnClickListener(this); 2803 } 2804 2805 @Override 2806 public void show() { 2807 boolean canPaste = mTextView.canPaste(); 2808 boolean canSuggest = mTextView.isSuggestionsEnabled() && isCursorInsideSuggestionSpan(); 2809 mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); 2810 mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE); 2811 2812 if (!canPaste && !canSuggest) return; 2813 2814 super.show(); 2815 } 2816 2817 @Override 2818 public void onClick(View view) { 2819 if (view == mPasteTextView && mTextView.canPaste()) { 2820 mTextView.onTextContextMenuItem(TextView.ID_PASTE); 2821 hide(); 2822 } else if (view == mReplaceTextView) { 2823 int middle = (mTextView.getSelectionStart() + mTextView.getSelectionEnd()) / 2; 2824 stopSelectionActionMode(); 2825 Selection.setSelection((Spannable) mTextView.getText(), middle); 2826 showSuggestions(); 2827 } 2828 } 2829 2830 @Override 2831 protected int getTextOffset() { 2832 return (mTextView.getSelectionStart() + mTextView.getSelectionEnd()) / 2; 2833 } 2834 2835 @Override 2836 protected int getVerticalLocalPosition(int line) { 2837 return mTextView.getLayout().getLineTop(line) - mContentView.getMeasuredHeight(); 2838 } 2839 2840 @Override 2841 protected int clipVertically(int positionY) { 2842 if (positionY < 0) { 2843 final int offset = getTextOffset(); 2844 final Layout layout = mTextView.getLayout(); 2845 final int line = layout.getLineForOffset(offset); 2846 positionY += layout.getLineBottom(line) - layout.getLineTop(line); 2847 positionY += mContentView.getMeasuredHeight(); 2848 2849 // Assumes insertion and selection handles share the same height 2850 final Drawable handle = mTextView.getResources().getDrawable( 2851 mTextView.mTextSelectHandleRes); 2852 positionY += handle.getIntrinsicHeight(); 2853 } 2854 2855 return positionY; 2856 } 2857 } 2858 2859 private abstract class HandleView extends View implements TextViewPositionListener { 2860 protected Drawable mDrawable; 2861 protected Drawable mDrawableLtr; 2862 protected Drawable mDrawableRtl; 2863 private final PopupWindow mContainer; 2864 // Position with respect to the parent TextView 2865 private int mPositionX, mPositionY; 2866 private boolean mIsDragging; 2867 // Offset from touch position to mPosition 2868 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 2869 protected int mHotspotX; 2870 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 2871 private float mTouchOffsetY; 2872 // Where the touch position should be on the handle to ensure a maximum cursor visibility 2873 private float mIdealVerticalOffset; 2874 // Parent's (TextView) previous position in window 2875 private int mLastParentX, mLastParentY; 2876 // Transient action popup window for Paste and Replace actions 2877 protected ActionPopupWindow mActionPopupWindow; 2878 // Previous text character offset 2879 private int mPreviousOffset = -1; 2880 // Previous text character offset 2881 private boolean mPositionHasChanged = true; 2882 // Used to delay the appearance of the action popup window 2883 private Runnable mActionPopupShower; 2884 2885 public HandleView(Drawable drawableLtr, Drawable drawableRtl) { 2886 super(mTextView.getContext()); 2887 mContainer = new PopupWindow(mTextView.getContext(), null, 2888 com.android.internal.R.attr.textSelectHandleWindowStyle); 2889 mContainer.setSplitTouchEnabled(true); 2890 mContainer.setClippingEnabled(false); 2891 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 2892 mContainer.setContentView(this); 2893 2894 mDrawableLtr = drawableLtr; 2895 mDrawableRtl = drawableRtl; 2896 2897 updateDrawable(); 2898 2899 final int handleHeight = mDrawable.getIntrinsicHeight(); 2900 mTouchOffsetY = -0.3f * handleHeight; 2901 mIdealVerticalOffset = 0.7f * handleHeight; 2902 } 2903 2904 protected void updateDrawable() { 2905 final int offset = getCurrentCursorOffset(); 2906 final boolean isRtlCharAtOffset = mTextView.getLayout().isRtlCharAt(offset); 2907 mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr; 2908 mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset); 2909 } 2910 2911 protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun); 2912 2913 // Touch-up filter: number of previous positions remembered 2914 private static final int HISTORY_SIZE = 5; 2915 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 2916 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 2917 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 2918 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 2919 private int mPreviousOffsetIndex = 0; 2920 private int mNumberPreviousOffsets = 0; 2921 2922 private void startTouchUpFilter(int offset) { 2923 mNumberPreviousOffsets = 0; 2924 addPositionToTouchUpFilter(offset); 2925 } 2926 2927 private void addPositionToTouchUpFilter(int offset) { 2928 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 2929 mPreviousOffsets[mPreviousOffsetIndex] = offset; 2930 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 2931 mNumberPreviousOffsets++; 2932 } 2933 2934 private void filterOnTouchUp() { 2935 final long now = SystemClock.uptimeMillis(); 2936 int i = 0; 2937 int index = mPreviousOffsetIndex; 2938 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 2939 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 2940 i++; 2941 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 2942 } 2943 2944 if (i > 0 && i < iMax && 2945 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 2946 positionAtCursorOffset(mPreviousOffsets[index], false); 2947 } 2948 } 2949 2950 public boolean offsetHasBeenChanged() { 2951 return mNumberPreviousOffsets > 1; 2952 } 2953 2954 @Override 2955 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 2956 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 2957 } 2958 2959 public void show() { 2960 if (isShowing()) return; 2961 2962 getPositionListener().addSubscriber(this, true /* local position may change */); 2963 2964 // Make sure the offset is always considered new, even when focusing at same position 2965 mPreviousOffset = -1; 2966 positionAtCursorOffset(getCurrentCursorOffset(), false); 2967 2968 hideActionPopupWindow(); 2969 } 2970 2971 protected void dismiss() { 2972 mIsDragging = false; 2973 mContainer.dismiss(); 2974 onDetached(); 2975 } 2976 2977 public void hide() { 2978 dismiss(); 2979 2980 getPositionListener().removeSubscriber(this); 2981 } 2982 2983 void showActionPopupWindow(int delay) { 2984 if (mActionPopupWindow == null) { 2985 mActionPopupWindow = new ActionPopupWindow(); 2986 } 2987 if (mActionPopupShower == null) { 2988 mActionPopupShower = new Runnable() { 2989 public void run() { 2990 mActionPopupWindow.show(); 2991 } 2992 }; 2993 } else { 2994 mTextView.removeCallbacks(mActionPopupShower); 2995 } 2996 mTextView.postDelayed(mActionPopupShower, delay); 2997 } 2998 2999 protected void hideActionPopupWindow() { 3000 if (mActionPopupShower != null) { 3001 mTextView.removeCallbacks(mActionPopupShower); 3002 } 3003 if (mActionPopupWindow != null) { 3004 mActionPopupWindow.hide(); 3005 } 3006 } 3007 3008 public boolean isShowing() { 3009 return mContainer.isShowing(); 3010 } 3011 3012 private boolean isVisible() { 3013 // Always show a dragging handle. 3014 if (mIsDragging) { 3015 return true; 3016 } 3017 3018 if (mTextView.isInBatchEditMode()) { 3019 return false; 3020 } 3021 3022 return isPositionVisible(mPositionX + mHotspotX, mPositionY); 3023 } 3024 3025 public abstract int getCurrentCursorOffset(); 3026 3027 protected abstract void updateSelection(int offset); 3028 3029 public abstract void updatePosition(float x, float y); 3030 3031 protected void positionAtCursorOffset(int offset, boolean parentScrolled) { 3032 // A HandleView relies on the layout, which may be nulled by external methods 3033 Layout layout = mTextView.getLayout(); 3034 if (layout == null) { 3035 // Will update controllers' state, hiding them and stopping selection mode if needed 3036 prepareCursorControllers(); 3037 return; 3038 } 3039 3040 boolean offsetChanged = offset != mPreviousOffset; 3041 if (offsetChanged || parentScrolled) { 3042 if (offsetChanged) { 3043 updateSelection(offset); 3044 addPositionToTouchUpFilter(offset); 3045 } 3046 final int line = layout.getLineForOffset(offset); 3047 3048 mPositionX = (int) (layout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 3049 mPositionY = layout.getLineBottom(line); 3050 3051 // Take TextView's padding and scroll into account. 3052 mPositionX += mTextView.viewportToContentHorizontalOffset(); 3053 mPositionY += mTextView.viewportToContentVerticalOffset(); 3054 3055 mPreviousOffset = offset; 3056 mPositionHasChanged = true; 3057 } 3058 } 3059 3060 public void updatePosition(int parentPositionX, int parentPositionY, 3061 boolean parentPositionChanged, boolean parentScrolled) { 3062 positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled); 3063 if (parentPositionChanged || mPositionHasChanged) { 3064 if (mIsDragging) { 3065 // Update touchToWindow offset in case of parent scrolling while dragging 3066 if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { 3067 mTouchToWindowOffsetX += parentPositionX - mLastParentX; 3068 mTouchToWindowOffsetY += parentPositionY - mLastParentY; 3069 mLastParentX = parentPositionX; 3070 mLastParentY = parentPositionY; 3071 } 3072 3073 onHandleMoved(); 3074 } 3075 3076 if (isVisible()) { 3077 final int positionX = parentPositionX + mPositionX; 3078 final int positionY = parentPositionY + mPositionY; 3079 if (isShowing()) { 3080 mContainer.update(positionX, positionY, -1, -1); 3081 } else { 3082 mContainer.showAtLocation(mTextView, Gravity.NO_GRAVITY, 3083 positionX, positionY); 3084 } 3085 } else { 3086 if (isShowing()) { 3087 dismiss(); 3088 } 3089 } 3090 3091 mPositionHasChanged = false; 3092 } 3093 } 3094 3095 @Override 3096 protected void onDraw(Canvas c) { 3097 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 3098 mDrawable.draw(c); 3099 } 3100 3101 @Override 3102 public boolean onTouchEvent(MotionEvent ev) { 3103 switch (ev.getActionMasked()) { 3104 case MotionEvent.ACTION_DOWN: { 3105 startTouchUpFilter(getCurrentCursorOffset()); 3106 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 3107 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 3108 3109 final PositionListener positionListener = getPositionListener(); 3110 mLastParentX = positionListener.getPositionX(); 3111 mLastParentY = positionListener.getPositionY(); 3112 mIsDragging = true; 3113 break; 3114 } 3115 3116 case MotionEvent.ACTION_MOVE: { 3117 final float rawX = ev.getRawX(); 3118 final float rawY = ev.getRawY(); 3119 3120 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 3121 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 3122 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 3123 float newVerticalOffset; 3124 if (previousVerticalOffset < mIdealVerticalOffset) { 3125 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 3126 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 3127 } else { 3128 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 3129 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 3130 } 3131 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 3132 3133 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 3134 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 3135 3136 updatePosition(newPosX, newPosY); 3137 break; 3138 } 3139 3140 case MotionEvent.ACTION_UP: 3141 filterOnTouchUp(); 3142 mIsDragging = false; 3143 break; 3144 3145 case MotionEvent.ACTION_CANCEL: 3146 mIsDragging = false; 3147 break; 3148 } 3149 return true; 3150 } 3151 3152 public boolean isDragging() { 3153 return mIsDragging; 3154 } 3155 3156 void onHandleMoved() { 3157 hideActionPopupWindow(); 3158 } 3159 3160 public void onDetached() { 3161 hideActionPopupWindow(); 3162 } 3163 } 3164 3165 private class InsertionHandleView extends HandleView { 3166 private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; 3167 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 3168 3169 // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow 3170 private float mDownPositionX, mDownPositionY; 3171 private Runnable mHider; 3172 3173 public InsertionHandleView(Drawable drawable) { 3174 super(drawable, drawable); 3175 } 3176 3177 @Override 3178 public void show() { 3179 super.show(); 3180 3181 final long durationSinceCutOrCopy = 3182 SystemClock.uptimeMillis() - TextView.LAST_CUT_OR_COPY_TIME; 3183 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 3184 showActionPopupWindow(0); 3185 } 3186 3187 hideAfterDelay(); 3188 } 3189 3190 public void showWithActionPopup() { 3191 show(); 3192 showActionPopupWindow(0); 3193 } 3194 3195 private void hideAfterDelay() { 3196 if (mHider == null) { 3197 mHider = new Runnable() { 3198 public void run() { 3199 hide(); 3200 } 3201 }; 3202 } else { 3203 removeHiderCallback(); 3204 } 3205 mTextView.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); 3206 } 3207 3208 private void removeHiderCallback() { 3209 if (mHider != null) { 3210 mTextView.removeCallbacks(mHider); 3211 } 3212 } 3213 3214 @Override 3215 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 3216 return drawable.getIntrinsicWidth() / 2; 3217 } 3218 3219 @Override 3220 public boolean onTouchEvent(MotionEvent ev) { 3221 final boolean result = super.onTouchEvent(ev); 3222 3223 switch (ev.getActionMasked()) { 3224 case MotionEvent.ACTION_DOWN: 3225 mDownPositionX = ev.getRawX(); 3226 mDownPositionY = ev.getRawY(); 3227 break; 3228 3229 case MotionEvent.ACTION_UP: 3230 if (!offsetHasBeenChanged()) { 3231 final float deltaX = mDownPositionX - ev.getRawX(); 3232 final float deltaY = mDownPositionY - ev.getRawY(); 3233 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 3234 3235 final ViewConfiguration viewConfiguration = ViewConfiguration.get( 3236 mTextView.getContext()); 3237 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 3238 3239 if (distanceSquared < touchSlop * touchSlop) { 3240 if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { 3241 // Tapping on the handle dismisses the displayed action popup 3242 mActionPopupWindow.hide(); 3243 } else { 3244 showWithActionPopup(); 3245 } 3246 } 3247 } 3248 hideAfterDelay(); 3249 break; 3250 3251 case MotionEvent.ACTION_CANCEL: 3252 hideAfterDelay(); 3253 break; 3254 3255 default: 3256 break; 3257 } 3258 3259 return result; 3260 } 3261 3262 @Override 3263 public int getCurrentCursorOffset() { 3264 return mTextView.getSelectionStart(); 3265 } 3266 3267 @Override 3268 public void updateSelection(int offset) { 3269 Selection.setSelection((Spannable) mTextView.getText(), offset); 3270 } 3271 3272 @Override 3273 public void updatePosition(float x, float y) { 3274 positionAtCursorOffset(mTextView.getOffsetForPosition(x, y), false); 3275 } 3276 3277 @Override 3278 void onHandleMoved() { 3279 super.onHandleMoved(); 3280 removeHiderCallback(); 3281 } 3282 3283 @Override 3284 public void onDetached() { 3285 super.onDetached(); 3286 removeHiderCallback(); 3287 } 3288 } 3289 3290 private class SelectionStartHandleView extends HandleView { 3291 3292 public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) { 3293 super(drawableLtr, drawableRtl); 3294 } 3295 3296 @Override 3297 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 3298 if (isRtlRun) { 3299 return drawable.getIntrinsicWidth() / 4; 3300 } else { 3301 return (drawable.getIntrinsicWidth() * 3) / 4; 3302 } 3303 } 3304 3305 @Override 3306 public int getCurrentCursorOffset() { 3307 return mTextView.getSelectionStart(); 3308 } 3309 3310 @Override 3311 public void updateSelection(int offset) { 3312 Selection.setSelection((Spannable) mTextView.getText(), offset, 3313 mTextView.getSelectionEnd()); 3314 updateDrawable(); 3315 } 3316 3317 @Override 3318 public void updatePosition(float x, float y) { 3319 int offset = mTextView.getOffsetForPosition(x, y); 3320 3321 // Handles can not cross and selection is at least one character 3322 final int selectionEnd = mTextView.getSelectionEnd(); 3323 if (offset >= selectionEnd) offset = Math.max(0, selectionEnd - 1); 3324 3325 positionAtCursorOffset(offset, false); 3326 } 3327 3328 public ActionPopupWindow getActionPopupWindow() { 3329 return mActionPopupWindow; 3330 } 3331 } 3332 3333 private class SelectionEndHandleView extends HandleView { 3334 3335 public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) { 3336 super(drawableLtr, drawableRtl); 3337 } 3338 3339 @Override 3340 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 3341 if (isRtlRun) { 3342 return (drawable.getIntrinsicWidth() * 3) / 4; 3343 } else { 3344 return drawable.getIntrinsicWidth() / 4; 3345 } 3346 } 3347 3348 @Override 3349 public int getCurrentCursorOffset() { 3350 return mTextView.getSelectionEnd(); 3351 } 3352 3353 @Override 3354 public void updateSelection(int offset) { 3355 Selection.setSelection((Spannable) mTextView.getText(), 3356 mTextView.getSelectionStart(), offset); 3357 updateDrawable(); 3358 } 3359 3360 @Override 3361 public void updatePosition(float x, float y) { 3362 int offset = mTextView.getOffsetForPosition(x, y); 3363 3364 // Handles can not cross and selection is at least one character 3365 final int selectionStart = mTextView.getSelectionStart(); 3366 if (offset <= selectionStart) { 3367 offset = Math.min(selectionStart + 1, mTextView.getText().length()); 3368 } 3369 3370 positionAtCursorOffset(offset, false); 3371 } 3372 3373 public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { 3374 mActionPopupWindow = actionPopupWindow; 3375 } 3376 } 3377 3378 /** 3379 * A CursorController instance can be used to control a cursor in the text. 3380 */ 3381 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 3382 /** 3383 * Makes the cursor controller visible on screen. 3384 * See also {@link #hide()}. 3385 */ 3386 public void show(); 3387 3388 /** 3389 * Hide the cursor controller from screen. 3390 * See also {@link #show()}. 3391 */ 3392 public void hide(); 3393 3394 /** 3395 * Called when the view is detached from window. Perform house keeping task, such as 3396 * stopping Runnable thread that would otherwise keep a reference on the context, thus 3397 * preventing the activity from being recycled. 3398 */ 3399 public void onDetached(); 3400 } 3401 3402 private class InsertionPointCursorController implements CursorController { 3403 private InsertionHandleView mHandle; 3404 3405 public void show() { 3406 getHandle().show(); 3407 } 3408 3409 public void showWithActionPopup() { 3410 getHandle().showWithActionPopup(); 3411 } 3412 3413 public void hide() { 3414 if (mHandle != null) { 3415 mHandle.hide(); 3416 } 3417 } 3418 3419 public void onTouchModeChanged(boolean isInTouchMode) { 3420 if (!isInTouchMode) { 3421 hide(); 3422 } 3423 } 3424 3425 private InsertionHandleView getHandle() { 3426 if (mSelectHandleCenter == null) { 3427 mSelectHandleCenter = mTextView.getResources().getDrawable( 3428 mTextView.mTextSelectHandleRes); 3429 } 3430 if (mHandle == null) { 3431 mHandle = new InsertionHandleView(mSelectHandleCenter); 3432 } 3433 return mHandle; 3434 } 3435 3436 @Override 3437 public void onDetached() { 3438 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 3439 observer.removeOnTouchModeChangeListener(this); 3440 3441 if (mHandle != null) mHandle.onDetached(); 3442 } 3443 } 3444 3445 class SelectionModifierCursorController implements CursorController { 3446 private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds 3447 // The cursor controller handles, lazily created when shown. 3448 private SelectionStartHandleView mStartHandle; 3449 private SelectionEndHandleView mEndHandle; 3450 // The offsets of that last touch down event. Remembered to start selection there. 3451 private int mMinTouchOffset, mMaxTouchOffset; 3452 3453 // Double tap detection 3454 private long mPreviousTapUpTime = 0; 3455 private float mDownPositionX, mDownPositionY; 3456 private boolean mGestureStayedInTapRegion; 3457 3458 SelectionModifierCursorController() { 3459 resetTouchOffsets(); 3460 } 3461 3462 public void show() { 3463 if (mTextView.isInBatchEditMode()) { 3464 return; 3465 } 3466 initDrawables(); 3467 initHandles(); 3468 hideInsertionPointCursorController(); 3469 } 3470 3471 private void initDrawables() { 3472 if (mSelectHandleLeft == null) { 3473 mSelectHandleLeft = mTextView.getContext().getResources().getDrawable( 3474 mTextView.mTextSelectHandleLeftRes); 3475 } 3476 if (mSelectHandleRight == null) { 3477 mSelectHandleRight = mTextView.getContext().getResources().getDrawable( 3478 mTextView.mTextSelectHandleRightRes); 3479 } 3480 } 3481 3482 private void initHandles() { 3483 // Lazy object creation has to be done before updatePosition() is called. 3484 if (mStartHandle == null) { 3485 mStartHandle = new SelectionStartHandleView(mSelectHandleLeft, mSelectHandleRight); 3486 } 3487 if (mEndHandle == null) { 3488 mEndHandle = new SelectionEndHandleView(mSelectHandleRight, mSelectHandleLeft); 3489 } 3490 3491 mStartHandle.show(); 3492 mEndHandle.show(); 3493 3494 // Make sure both left and right handles share the same ActionPopupWindow (so that 3495 // moving any of the handles hides the action popup). 3496 mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); 3497 mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); 3498 3499 hideInsertionPointCursorController(); 3500 } 3501 3502 public void hide() { 3503 if (mStartHandle != null) mStartHandle.hide(); 3504 if (mEndHandle != null) mEndHandle.hide(); 3505 } 3506 3507 public void onTouchEvent(MotionEvent event) { 3508 // This is done even when the View does not have focus, so that long presses can start 3509 // selection and tap can move cursor from this tap position. 3510 switch (event.getActionMasked()) { 3511 case MotionEvent.ACTION_DOWN: 3512 final float x = event.getX(); 3513 final float y = event.getY(); 3514 3515 // Remember finger down position, to be able to start selection from there 3516 mMinTouchOffset = mMaxTouchOffset = mTextView.getOffsetForPosition(x, y); 3517 3518 // Double tap detection 3519 if (mGestureStayedInTapRegion) { 3520 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 3521 if (duration <= ViewConfiguration.getDoubleTapTimeout()) { 3522 final float deltaX = x - mDownPositionX; 3523 final float deltaY = y - mDownPositionY; 3524 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 3525 3526 ViewConfiguration viewConfiguration = ViewConfiguration.get( 3527 mTextView.getContext()); 3528 int doubleTapSlop = viewConfiguration.getScaledDoubleTapSlop(); 3529 boolean stayedInArea = distanceSquared < doubleTapSlop * doubleTapSlop; 3530 3531 if (stayedInArea && isPositionOnText(x, y)) { 3532 startSelectionActionMode(); 3533 mDiscardNextActionUp = true; 3534 } 3535 } 3536 } 3537 3538 mDownPositionX = x; 3539 mDownPositionY = y; 3540 mGestureStayedInTapRegion = true; 3541 break; 3542 3543 case MotionEvent.ACTION_POINTER_DOWN: 3544 case MotionEvent.ACTION_POINTER_UP: 3545 // Handle multi-point gestures. Keep min and max offset positions. 3546 // Only activated for devices that correctly handle multi-touch. 3547 if (mTextView.getContext().getPackageManager().hasSystemFeature( 3548 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 3549 updateMinAndMaxOffsets(event); 3550 } 3551 break; 3552 3553 case MotionEvent.ACTION_MOVE: 3554 if (mGestureStayedInTapRegion) { 3555 final float deltaX = event.getX() - mDownPositionX; 3556 final float deltaY = event.getY() - mDownPositionY; 3557 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 3558 3559 final ViewConfiguration viewConfiguration = ViewConfiguration.get( 3560 mTextView.getContext()); 3561 int doubleTapTouchSlop = viewConfiguration.getScaledDoubleTapTouchSlop(); 3562 3563 if (distanceSquared > doubleTapTouchSlop * doubleTapTouchSlop) { 3564 mGestureStayedInTapRegion = false; 3565 } 3566 } 3567 break; 3568 3569 case MotionEvent.ACTION_UP: 3570 mPreviousTapUpTime = SystemClock.uptimeMillis(); 3571 break; 3572 } 3573 } 3574 3575 /** 3576 * @param event 3577 */ 3578 private void updateMinAndMaxOffsets(MotionEvent event) { 3579 int pointerCount = event.getPointerCount(); 3580 for (int index = 0; index < pointerCount; index++) { 3581 int offset = mTextView.getOffsetForPosition(event.getX(index), event.getY(index)); 3582 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 3583 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 3584 } 3585 } 3586 3587 public int getMinTouchOffset() { 3588 return mMinTouchOffset; 3589 } 3590 3591 public int getMaxTouchOffset() { 3592 return mMaxTouchOffset; 3593 } 3594 3595 public void resetTouchOffsets() { 3596 mMinTouchOffset = mMaxTouchOffset = -1; 3597 } 3598 3599 /** 3600 * @return true iff this controller is currently used to move the selection start. 3601 */ 3602 public boolean isSelectionStartDragged() { 3603 return mStartHandle != null && mStartHandle.isDragging(); 3604 } 3605 3606 public void onTouchModeChanged(boolean isInTouchMode) { 3607 if (!isInTouchMode) { 3608 hide(); 3609 } 3610 } 3611 3612 @Override 3613 public void onDetached() { 3614 final ViewTreeObserver observer = mTextView.getViewTreeObserver(); 3615 observer.removeOnTouchModeChangeListener(this); 3616 3617 if (mStartHandle != null) mStartHandle.onDetached(); 3618 if (mEndHandle != null) mEndHandle.onDetached(); 3619 } 3620 } 3621 3622 private class CorrectionHighlighter { 3623 private final Path mPath = new Path(); 3624 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 3625 private int mStart, mEnd; 3626 private long mFadingStartTime; 3627 private RectF mTempRectF; 3628 private final static int FADE_OUT_DURATION = 400; 3629 3630 public CorrectionHighlighter() { 3631 mPaint.setCompatibilityScaling(mTextView.getResources().getCompatibilityInfo(). 3632 applicationScale); 3633 mPaint.setStyle(Paint.Style.FILL); 3634 } 3635 3636 public void highlight(CorrectionInfo info) { 3637 mStart = info.getOffset(); 3638 mEnd = mStart + info.getNewText().length(); 3639 mFadingStartTime = SystemClock.uptimeMillis(); 3640 3641 if (mStart < 0 || mEnd < 0) { 3642 stopAnimation(); 3643 } 3644 } 3645 3646 public void draw(Canvas canvas, int cursorOffsetVertical) { 3647 if (updatePath() && updatePaint()) { 3648 if (cursorOffsetVertical != 0) { 3649 canvas.translate(0, cursorOffsetVertical); 3650 } 3651 3652 canvas.drawPath(mPath, mPaint); 3653 3654 if (cursorOffsetVertical != 0) { 3655 canvas.translate(0, -cursorOffsetVertical); 3656 } 3657 invalidate(true); // TODO invalidate cursor region only 3658 } else { 3659 stopAnimation(); 3660 invalidate(false); // TODO invalidate cursor region only 3661 } 3662 } 3663 3664 private boolean updatePaint() { 3665 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 3666 if (duration > FADE_OUT_DURATION) return false; 3667 3668 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 3669 final int highlightColorAlpha = Color.alpha(mTextView.mHighlightColor); 3670 final int color = (mTextView.mHighlightColor & 0x00FFFFFF) + 3671 ((int) (highlightColorAlpha * coef) << 24); 3672 mPaint.setColor(color); 3673 return true; 3674 } 3675 3676 private boolean updatePath() { 3677 final Layout layout = mTextView.getLayout(); 3678 if (layout == null) return false; 3679 3680 // Update in case text is edited while the animation is run 3681 final int length = mTextView.getText().length(); 3682 int start = Math.min(length, mStart); 3683 int end = Math.min(length, mEnd); 3684 3685 mPath.reset(); 3686 layout.getSelectionPath(start, end, mPath); 3687 return true; 3688 } 3689 3690 private void invalidate(boolean delayed) { 3691 if (mTextView.getLayout() == null) return; 3692 3693 if (mTempRectF == null) mTempRectF = new RectF(); 3694 mPath.computeBounds(mTempRectF, false); 3695 3696 int left = mTextView.getCompoundPaddingLeft(); 3697 int top = mTextView.getExtendedPaddingTop() + mTextView.getVerticalOffset(true); 3698 3699 if (delayed) { 3700 mTextView.postInvalidateOnAnimation( 3701 left + (int) mTempRectF.left, top + (int) mTempRectF.top, 3702 left + (int) mTempRectF.right, top + (int) mTempRectF.bottom); 3703 } else { 3704 mTextView.postInvalidate((int) mTempRectF.left, (int) mTempRectF.top, 3705 (int) mTempRectF.right, (int) mTempRectF.bottom); 3706 } 3707 } 3708 3709 private void stopAnimation() { 3710 Editor.this.mCorrectionHighlighter = null; 3711 } 3712 } 3713 3714 private static class ErrorPopup extends PopupWindow { 3715 private boolean mAbove = false; 3716 private final TextView mView; 3717 private int mPopupInlineErrorBackgroundId = 0; 3718 private int mPopupInlineErrorAboveBackgroundId = 0; 3719 3720 ErrorPopup(TextView v, int width, int height) { 3721 super(v, width, height); 3722 mView = v; 3723 // Make sure the TextView has a background set as it will be used the first time it is 3724 // shown and positionned. Initialized with below background, which should have 3725 // dimensions identical to the above version for this to work (and is more likely). 3726 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3727 com.android.internal.R.styleable.Theme_errorMessageBackground); 3728 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 3729 } 3730 3731 void fixDirection(boolean above) { 3732 mAbove = above; 3733 3734 if (above) { 3735 mPopupInlineErrorAboveBackgroundId = 3736 getResourceId(mPopupInlineErrorAboveBackgroundId, 3737 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 3738 } else { 3739 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3740 com.android.internal.R.styleable.Theme_errorMessageBackground); 3741 } 3742 3743 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 3744 mPopupInlineErrorBackgroundId); 3745 } 3746 3747 private int getResourceId(int currentId, int index) { 3748 if (currentId == 0) { 3749 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 3750 R.styleable.Theme); 3751 currentId = styledAttributes.getResourceId(index, 0); 3752 styledAttributes.recycle(); 3753 } 3754 return currentId; 3755 } 3756 3757 @Override 3758 public void update(int x, int y, int w, int h, boolean force) { 3759 super.update(x, y, w, h, force); 3760 3761 boolean above = isAboveAnchor(); 3762 if (above != mAbove) { 3763 fixDirection(above); 3764 } 3765 } 3766 } 3767 3768 static class InputContentType { 3769 int imeOptions = EditorInfo.IME_NULL; 3770 String privateImeOptions; 3771 CharSequence imeActionLabel; 3772 int imeActionId; 3773 Bundle extras; 3774 OnEditorActionListener onEditorActionListener; 3775 boolean enterDown; 3776 } 3777 3778 static class InputMethodState { 3779 Rect mCursorRectInWindow = new Rect(); 3780 RectF mTmpRectF = new RectF(); 3781 float[] mTmpOffset = new float[2]; 3782 ExtractedTextRequest mExtracting; 3783 final ExtractedText mTmpExtracted = new ExtractedText(); 3784 int mBatchEditNesting; 3785 boolean mCursorChanged; 3786 boolean mSelectionModeChanged; 3787 boolean mContentChanged; 3788 int mChangedStart, mChangedEnd, mChangedDelta; 3789 } 3790} 3791