WebViewClassic.java revision 8d79d2727565034aa472b890f05be1ccada1e612
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.webkit; 18 19import android.animation.ObjectAnimator; 20import android.annotation.Widget; 21import android.app.ActivityManager; 22import android.app.AlertDialog; 23import android.content.BroadcastReceiver; 24import android.content.ClipData; 25import android.content.ClipboardManager; 26import android.content.ComponentCallbacks2; 27import android.content.Context; 28import android.content.DialogInterface; 29import android.content.DialogInterface.OnCancelListener; 30import android.content.Intent; 31import android.content.IntentFilter; 32import android.content.pm.PackageManager; 33import android.content.res.Configuration; 34import android.database.DataSetObserver; 35import android.graphics.Bitmap; 36import android.graphics.BitmapFactory; 37import android.graphics.BitmapShader; 38import android.graphics.Canvas; 39import android.graphics.Color; 40import android.graphics.ColorFilter; 41import android.graphics.DrawFilter; 42import android.graphics.Paint; 43import android.graphics.PaintFlagsDrawFilter; 44import android.graphics.Picture; 45import android.graphics.Point; 46import android.graphics.PointF; 47import android.graphics.Rect; 48import android.graphics.RectF; 49import android.graphics.Region; 50import android.graphics.RegionIterator; 51import android.graphics.Shader; 52import android.graphics.drawable.Drawable; 53import android.net.Proxy; 54import android.net.ProxyProperties; 55import android.net.Uri; 56import android.net.http.SslCertificate; 57import android.os.AsyncTask; 58import android.os.Bundle; 59import android.os.Handler; 60import android.os.Looper; 61import android.os.Message; 62import android.os.SystemClock; 63import android.security.KeyChain; 64import android.text.Editable; 65import android.text.InputType; 66import android.text.Selection; 67import android.text.TextUtils; 68import android.util.DisplayMetrics; 69import android.util.EventLog; 70import android.util.Log; 71import android.view.Display; 72import android.view.Gravity; 73import android.view.HapticFeedbackConstants; 74import android.view.HardwareCanvas; 75import android.view.InputDevice; 76import android.view.KeyCharacterMap; 77import android.view.KeyEvent; 78import android.view.LayoutInflater; 79import android.view.MotionEvent; 80import android.view.ScaleGestureDetector; 81import android.view.SoundEffectConstants; 82import android.view.VelocityTracker; 83import android.view.View; 84import android.view.View.MeasureSpec; 85import android.view.ViewConfiguration; 86import android.view.ViewGroup; 87import android.view.ViewParent; 88import android.view.ViewRootImpl; 89import android.view.WindowManager; 90import android.view.accessibility.AccessibilityEvent; 91import android.view.accessibility.AccessibilityManager; 92import android.view.accessibility.AccessibilityNodeInfo; 93import android.view.inputmethod.BaseInputConnection; 94import android.view.inputmethod.EditorInfo; 95import android.view.inputmethod.InputConnection; 96import android.view.inputmethod.InputMethodManager; 97import android.webkit.WebView.HitTestResult; 98import android.webkit.WebView.PictureListener; 99import android.webkit.WebViewCore.DrawData; 100import android.webkit.WebViewCore.EventHub; 101import android.webkit.WebViewCore.TextFieldInitData; 102import android.webkit.WebViewCore.TextSelectionData; 103import android.webkit.WebViewCore.WebKitHitTest; 104import android.widget.AbsoluteLayout; 105import android.widget.Adapter; 106import android.widget.AdapterView; 107import android.widget.AdapterView.OnItemClickListener; 108import android.widget.ArrayAdapter; 109import android.widget.CheckedTextView; 110import android.widget.LinearLayout; 111import android.widget.ListView; 112import android.widget.OverScroller; 113import android.widget.PopupWindow; 114import android.widget.Scroller; 115import android.widget.TextView; 116import android.widget.Toast; 117 118import junit.framework.Assert; 119 120import java.io.File; 121import java.io.FileInputStream; 122import java.io.FileNotFoundException; 123import java.io.FileOutputStream; 124import java.io.IOException; 125import java.io.InputStream; 126import java.io.OutputStream; 127import java.net.URLDecoder; 128import java.util.ArrayList; 129import java.util.HashMap; 130import java.util.HashSet; 131import java.util.List; 132import java.util.Map; 133import java.util.Set; 134import java.util.Vector; 135import java.util.regex.Matcher; 136import java.util.regex.Pattern; 137 138/** 139 * Implements a backend provider for the {@link WebView} public API. 140 * @hide 141 */ 142// TODO: Check if any WebView published API methods are called from within here, and if so 143// we should bounce the call out via the proxy to enable any sub-class to override it. 144@Widget 145@SuppressWarnings("deprecation") 146public final class WebViewClassic implements WebViewProvider, WebViewProvider.ScrollDelegate, 147 WebViewProvider.ViewDelegate { 148 /** 149 * InputConnection used for ContentEditable. This captures changes 150 * to the text and sends them either as key strokes or text changes. 151 */ 152 class WebViewInputConnection extends BaseInputConnection { 153 // Used for mapping characters to keys typed. 154 private KeyCharacterMap mKeyCharacterMap; 155 private boolean mIsKeySentByMe; 156 private int mInputType; 157 private int mImeOptions; 158 private String mHint; 159 private int mMaxLength; 160 private boolean mIsAutoFillable; 161 private boolean mIsAutoCompleteEnabled; 162 private String mName; 163 private int mBatchLevel; 164 165 public WebViewInputConnection() { 166 super(mWebView, true); 167 } 168 169 public void setAutoFillable(int queryId) { 170 mIsAutoFillable = getSettings().getAutoFillEnabled() 171 && (queryId != WebTextView.FORM_NOT_AUTOFILLABLE); 172 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 173 if (variation != EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD 174 && (mIsAutoFillable || mIsAutoCompleteEnabled)) { 175 if (mName != null && mName.length() > 0) { 176 requestFormData(mName, mFieldPointer, mIsAutoFillable, 177 mIsAutoCompleteEnabled); 178 } 179 } 180 } 181 182 @Override 183 public boolean beginBatchEdit() { 184 if (mBatchLevel == 0) { 185 beginTextBatch(); 186 } 187 mBatchLevel++; 188 return false; 189 } 190 191 @Override 192 public boolean endBatchEdit() { 193 mBatchLevel--; 194 if (mBatchLevel == 0) { 195 commitTextBatch(); 196 } 197 return false; 198 } 199 200 public boolean getIsAutoFillable() { 201 return mIsAutoFillable; 202 } 203 204 @Override 205 public boolean sendKeyEvent(KeyEvent event) { 206 // Some IMEs send key events directly using sendKeyEvents. 207 // WebViewInputConnection should treat these as text changes. 208 if (!mIsKeySentByMe) { 209 if (event.getAction() == KeyEvent.ACTION_UP) { 210 if (event.getKeyCode() == KeyEvent.KEYCODE_DEL) { 211 return deleteSurroundingText(1, 0); 212 } else if (event.getKeyCode() == KeyEvent.KEYCODE_FORWARD_DEL) { 213 return deleteSurroundingText(0, 1); 214 } else if (event.getUnicodeChar() != 0){ 215 String newComposingText = 216 Character.toString((char)event.getUnicodeChar()); 217 return commitText(newComposingText, 1); 218 } 219 } else if (event.getAction() == KeyEvent.ACTION_DOWN && 220 (event.getKeyCode() == KeyEvent.KEYCODE_DEL 221 || event.getKeyCode() == KeyEvent.KEYCODE_FORWARD_DEL 222 || event.getUnicodeChar() != 0)) { 223 return true; // only act on action_down 224 } 225 } 226 return super.sendKeyEvent(event); 227 } 228 229 public void setTextAndKeepSelection(CharSequence text) { 230 Editable editable = getEditable(); 231 int selectionStart = Selection.getSelectionStart(editable); 232 int selectionEnd = Selection.getSelectionEnd(editable); 233 text = limitReplaceTextByMaxLength(text, editable.length()); 234 editable.replace(0, editable.length(), text); 235 restartInput(); 236 // Keep the previous selection. 237 selectionStart = Math.min(selectionStart, editable.length()); 238 selectionEnd = Math.min(selectionEnd, editable.length()); 239 setSelection(selectionStart, selectionEnd); 240 finishComposingText(); 241 } 242 243 public void replaceSelection(CharSequence text) { 244 Editable editable = getEditable(); 245 int selectionStart = Selection.getSelectionStart(editable); 246 int selectionEnd = Selection.getSelectionEnd(editable); 247 text = limitReplaceTextByMaxLength(text, selectionEnd - selectionStart); 248 setNewText(selectionStart, selectionEnd, text); 249 editable.replace(selectionStart, selectionEnd, text); 250 restartInput(); 251 // Move caret to the end of the new text 252 int newCaret = selectionStart + text.length(); 253 setSelection(newCaret, newCaret); 254 } 255 256 @Override 257 public boolean setComposingText(CharSequence text, int newCursorPosition) { 258 Editable editable = getEditable(); 259 int start = getComposingSpanStart(editable); 260 int end = getComposingSpanEnd(editable); 261 if (start < 0 || end < 0) { 262 start = Selection.getSelectionStart(editable); 263 end = Selection.getSelectionEnd(editable); 264 } 265 if (end < start) { 266 int temp = end; 267 end = start; 268 start = temp; 269 } 270 CharSequence limitedText = limitReplaceTextByMaxLength(text, end - start); 271 setNewText(start, end, limitedText); 272 if (limitedText != text) { 273 newCursorPosition -= text.length() - limitedText.length(); 274 } 275 super.setComposingText(limitedText, newCursorPosition); 276 updateSelection(); 277 if (limitedText != text) { 278 restartInput(); 279 int lastCaret = start + limitedText.length(); 280 finishComposingText(); 281 setSelection(lastCaret, lastCaret); 282 } 283 return true; 284 } 285 286 @Override 287 public boolean commitText(CharSequence text, int newCursorPosition) { 288 setComposingText(text, newCursorPosition); 289 finishComposingText(); 290 return true; 291 } 292 293 @Override 294 public boolean deleteSurroundingText(int leftLength, int rightLength) { 295 // This code is from BaseInputConnection#deleteSurroundText. 296 // We have to delete the same text in webkit. 297 Editable content = getEditable(); 298 int a = Selection.getSelectionStart(content); 299 int b = Selection.getSelectionEnd(content); 300 301 if (a > b) { 302 int tmp = a; 303 a = b; 304 b = tmp; 305 } 306 307 int ca = getComposingSpanStart(content); 308 int cb = getComposingSpanEnd(content); 309 if (cb < ca) { 310 int tmp = ca; 311 ca = cb; 312 cb = tmp; 313 } 314 if (ca != -1 && cb != -1) { 315 if (ca < a) a = ca; 316 if (cb > b) b = cb; 317 } 318 319 int endDelete = Math.min(content.length(), b + rightLength); 320 if (endDelete > b) { 321 setNewText(b, endDelete, ""); 322 } 323 int startDelete = Math.max(0, a - leftLength); 324 if (startDelete < a) { 325 setNewText(startDelete, a, ""); 326 } 327 return super.deleteSurroundingText(leftLength, rightLength); 328 } 329 330 @Override 331 public boolean performEditorAction(int editorAction) { 332 333 boolean handled = true; 334 switch (editorAction) { 335 case EditorInfo.IME_ACTION_NEXT: 336 mWebView.requestFocus(View.FOCUS_FORWARD); 337 break; 338 case EditorInfo.IME_ACTION_PREVIOUS: 339 mWebView.requestFocus(View.FOCUS_BACKWARD); 340 break; 341 case EditorInfo.IME_ACTION_DONE: 342 WebViewClassic.this.hideSoftKeyboard(); 343 break; 344 case EditorInfo.IME_ACTION_GO: 345 case EditorInfo.IME_ACTION_SEARCH: 346 WebViewClassic.this.hideSoftKeyboard(); 347 String text = getEditable().toString(); 348 passToJavaScript(text, new KeyEvent(KeyEvent.ACTION_DOWN, 349 KeyEvent.KEYCODE_ENTER)); 350 passToJavaScript(text, new KeyEvent(KeyEvent.ACTION_UP, 351 KeyEvent.KEYCODE_ENTER)); 352 break; 353 354 default: 355 handled = super.performEditorAction(editorAction); 356 break; 357 } 358 359 return handled; 360 } 361 362 public void initEditorInfo(WebViewCore.TextFieldInitData initData) { 363 int type = initData.mType; 364 int inputType = InputType.TYPE_CLASS_TEXT 365 | InputType.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT; 366 int imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI 367 | EditorInfo.IME_FLAG_NO_FULLSCREEN; 368 if (!initData.mIsSpellCheckEnabled) { 369 inputType |= InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS; 370 } 371 if (WebTextView.TEXT_AREA != type) { 372 if (initData.mIsTextFieldNext) { 373 imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 374 } 375 if (initData.mIsTextFieldPrev) { 376 imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 377 } 378 } 379 switch (type) { 380 case WebTextView.NORMAL_TEXT_FIELD: 381 imeOptions |= EditorInfo.IME_ACTION_GO; 382 break; 383 case WebTextView.TEXT_AREA: 384 inputType |= InputType.TYPE_TEXT_FLAG_MULTI_LINE 385 | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES 386 | InputType.TYPE_TEXT_FLAG_AUTO_CORRECT; 387 imeOptions |= EditorInfo.IME_ACTION_NONE; 388 break; 389 case WebTextView.PASSWORD: 390 inputType |= EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 391 imeOptions |= EditorInfo.IME_ACTION_GO; 392 break; 393 case WebTextView.SEARCH: 394 imeOptions |= EditorInfo.IME_ACTION_SEARCH; 395 break; 396 case WebTextView.EMAIL: 397 // inputType needs to be overwritten because of the different text variation. 398 inputType = InputType.TYPE_CLASS_TEXT 399 | InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS; 400 imeOptions |= EditorInfo.IME_ACTION_GO; 401 break; 402 case WebTextView.NUMBER: 403 // inputType needs to be overwritten because of the different class. 404 inputType = InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_NORMAL 405 | InputType.TYPE_NUMBER_FLAG_SIGNED | InputType.TYPE_NUMBER_FLAG_DECIMAL; 406 // Number and telephone do not have both a Tab key and an 407 // action, so set the action to NEXT 408 imeOptions |= EditorInfo.IME_ACTION_NEXT; 409 break; 410 case WebTextView.TELEPHONE: 411 // inputType needs to be overwritten because of the different class. 412 inputType = InputType.TYPE_CLASS_PHONE; 413 imeOptions |= EditorInfo.IME_ACTION_NEXT; 414 break; 415 case WebTextView.URL: 416 // TYPE_TEXT_VARIATION_URI prevents Tab key from showing, so 417 // exclude it for now. 418 imeOptions |= EditorInfo.IME_ACTION_GO; 419 inputType |= InputType.TYPE_TEXT_VARIATION_URI; 420 break; 421 default: 422 imeOptions |= EditorInfo.IME_ACTION_GO; 423 break; 424 } 425 mHint = initData.mLabel; 426 mInputType = inputType; 427 mImeOptions = imeOptions; 428 mMaxLength = initData.mMaxLength; 429 mIsAutoCompleteEnabled = initData.mIsAutoCompleteEnabled; 430 mName = initData.mName; 431 mAutoCompletePopup.clearAdapter(); 432 } 433 434 public void setupEditorInfo(EditorInfo outAttrs) { 435 outAttrs.inputType = mInputType; 436 outAttrs.imeOptions = mImeOptions; 437 outAttrs.hintText = mHint; 438 outAttrs.initialCapsMode = getCursorCapsMode(InputType.TYPE_CLASS_TEXT); 439 440 Editable editable = getEditable(); 441 int selectionStart = Selection.getSelectionStart(editable); 442 int selectionEnd = Selection.getSelectionEnd(editable); 443 if (selectionStart < 0 || selectionEnd < 0) { 444 selectionStart = editable.length(); 445 selectionEnd = selectionStart; 446 } 447 outAttrs.initialSelStart = selectionStart; 448 outAttrs.initialSelEnd = selectionEnd; 449 } 450 451 @Override 452 public boolean setSelection(int start, int end) { 453 boolean result = super.setSelection(start, end); 454 updateSelection(); 455 return result; 456 } 457 458 @Override 459 public boolean setComposingRegion(int start, int end) { 460 boolean result = super.setComposingRegion(start, end); 461 updateSelection(); 462 return result; 463 } 464 465 /** 466 * Send the selection and composing spans to the IME. 467 */ 468 private void updateSelection() { 469 Editable editable = getEditable(); 470 int selectionStart = Selection.getSelectionStart(editable); 471 int selectionEnd = Selection.getSelectionEnd(editable); 472 int composingStart = getComposingSpanStart(editable); 473 int composingEnd = getComposingSpanEnd(editable); 474 InputMethodManager imm = InputMethodManager.peekInstance(); 475 if (imm != null) { 476 imm.updateSelection(mWebView, selectionStart, selectionEnd, 477 composingStart, composingEnd); 478 } 479 } 480 481 /** 482 * Sends a text change to webkit indirectly. If it is a single- 483 * character add or delete, it sends it as a key stroke. If it cannot 484 * be represented as a key stroke, it sends it as a field change. 485 * @param start The start offset (inclusive) of the text being changed. 486 * @param end The end offset (exclusive) of the text being changed. 487 * @param text The new text to replace the changed text. 488 */ 489 private void setNewText(int start, int end, CharSequence text) { 490 mIsKeySentByMe = true; 491 Editable editable = getEditable(); 492 CharSequence original = editable.subSequence(start, end); 493 boolean isCharacterAdd = false; 494 boolean isCharacterDelete = false; 495 int textLength = text.length(); 496 int originalLength = original.length(); 497 int selectionStart = Selection.getSelectionStart(editable); 498 int selectionEnd = Selection.getSelectionEnd(editable); 499 if (selectionStart == selectionEnd) { 500 if (textLength > originalLength) { 501 isCharacterAdd = (textLength == originalLength + 1) 502 && TextUtils.regionMatches(text, 0, original, 0, 503 originalLength); 504 } else if (originalLength > textLength) { 505 isCharacterDelete = (textLength == originalLength - 1) 506 && TextUtils.regionMatches(text, 0, original, 0, 507 textLength); 508 } 509 } 510 if (isCharacterAdd) { 511 sendCharacter(text.charAt(textLength - 1)); 512 } else if (isCharacterDelete) { 513 sendKey(KeyEvent.KEYCODE_DEL); 514 } else if ((textLength != originalLength) || 515 !TextUtils.regionMatches(text, 0, original, 0, 516 textLength)) { 517 // Send a message so that key strokes and text replacement 518 // do not come out of order. 519 Message replaceMessage = mPrivateHandler.obtainMessage( 520 REPLACE_TEXT, start, end, text.toString()); 521 mPrivateHandler.sendMessage(replaceMessage); 522 } 523 if (mAutoCompletePopup != null) { 524 StringBuilder newText = new StringBuilder(); 525 newText.append(editable.subSequence(0, start)); 526 newText.append(text); 527 newText.append(editable.subSequence(end, editable.length())); 528 mAutoCompletePopup.setText(newText.toString()); 529 } 530 mIsKeySentByMe = false; 531 } 532 533 /** 534 * Send a single character to the WebView as a key down and up event. 535 * @param c The character to be sent. 536 */ 537 private void sendCharacter(char c) { 538 if (mKeyCharacterMap == null) { 539 mKeyCharacterMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD); 540 } 541 char[] chars = new char[1]; 542 chars[0] = c; 543 KeyEvent[] events = mKeyCharacterMap.getEvents(chars); 544 if (events != null) { 545 for (KeyEvent event : events) { 546 sendKeyEvent(event); 547 } 548 } else { 549 Message msg = mPrivateHandler.obtainMessage(KEY_PRESS, (int) c, 0); 550 mPrivateHandler.sendMessage(msg); 551 } 552 } 553 554 /** 555 * Send a key event for a specific key code, not a standard 556 * unicode character. 557 * @param keyCode The key code to send. 558 */ 559 private void sendKey(int keyCode) { 560 long eventTime = SystemClock.uptimeMillis(); 561 sendKeyEvent(new KeyEvent(eventTime, eventTime, 562 KeyEvent.ACTION_DOWN, keyCode, 0, 0, 563 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 564 KeyEvent.FLAG_SOFT_KEYBOARD)); 565 sendKeyEvent(new KeyEvent(SystemClock.uptimeMillis(), eventTime, 566 KeyEvent.ACTION_UP, keyCode, 0, 0, 567 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 568 KeyEvent.FLAG_SOFT_KEYBOARD)); 569 } 570 571 private CharSequence limitReplaceTextByMaxLength(CharSequence text, 572 int numReplaced) { 573 if (mMaxLength > 0) { 574 Editable editable = getEditable(); 575 int maxReplace = mMaxLength - editable.length() + numReplaced; 576 if (maxReplace < text.length()) { 577 maxReplace = Math.max(maxReplace, 0); 578 // New length is greater than the maximum. trim it down. 579 text = text.subSequence(0, maxReplace); 580 } 581 } 582 return text; 583 } 584 585 private void restartInput() { 586 InputMethodManager imm = InputMethodManager.peekInstance(); 587 if (imm != null) { 588 // Since the text has changed, do not allow the IME to replace the 589 // existing text as though it were a completion. 590 imm.restartInput(mWebView); 591 } 592 } 593 } 594 595 private class PastePopupWindow extends PopupWindow implements View.OnClickListener { 596 private ViewGroup mContentView; 597 private TextView mPasteTextView; 598 599 public PastePopupWindow() { 600 super(mContext, null, 601 com.android.internal.R.attr.textSelectHandleWindowStyle); 602 setClippingEnabled(true); 603 LinearLayout linearLayout = new LinearLayout(mContext); 604 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 605 mContentView = linearLayout; 606 mContentView.setBackgroundResource( 607 com.android.internal.R.drawable.text_edit_paste_window); 608 609 LayoutInflater inflater = (LayoutInflater)mContext. 610 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 611 612 ViewGroup.LayoutParams wrapContent = new ViewGroup.LayoutParams( 613 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 614 615 mPasteTextView = (TextView) inflater.inflate( 616 com.android.internal.R.layout.text_edit_action_popup_text, null); 617 mPasteTextView.setLayoutParams(wrapContent); 618 mContentView.addView(mPasteTextView); 619 mPasteTextView.setText(com.android.internal.R.string.paste); 620 mPasteTextView.setOnClickListener(this); 621 this.setContentView(mContentView); 622 } 623 624 public void show(Point cursorBottom, Point cursorTop, 625 int windowLeft, int windowTop) { 626 measureContent(); 627 628 int width = mContentView.getMeasuredWidth(); 629 int height = mContentView.getMeasuredHeight(); 630 int y = cursorTop.y - height; 631 int x = cursorTop.x - (width / 2); 632 if (y < windowTop) { 633 // There's not enough room vertically, move it below the 634 // handle. 635 ensureSelectionHandles(); 636 y = cursorBottom.y + mSelectHandleCenter.getIntrinsicHeight(); 637 x = cursorBottom.x - (width / 2); 638 } 639 if (x < windowLeft) { 640 x = windowLeft; 641 } 642 if (!isShowing()) { 643 showAtLocation(mWebView, Gravity.NO_GRAVITY, x, y); 644 } 645 update(x, y, width, height); 646 } 647 648 public void hide() { 649 dismiss(); 650 } 651 652 @Override 653 public void onClick(View view) { 654 pasteFromClipboard(); 655 selectionDone(); 656 } 657 658 protected void measureContent() { 659 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 660 mContentView.measure( 661 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 662 View.MeasureSpec.AT_MOST), 663 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 664 View.MeasureSpec.AT_MOST)); 665 } 666 } 667 668 // if AUTO_REDRAW_HACK is true, then the CALL key will toggle redrawing 669 // the screen all-the-time. Good for profiling our drawing code 670 static private final boolean AUTO_REDRAW_HACK = false; 671 672 // The rate at which edit text is scrolled in content pixels per millisecond 673 static private final float TEXT_SCROLL_RATE = 0.01f; 674 675 // The presumed scroll rate for the first scroll of edit text 676 static private final long TEXT_SCROLL_FIRST_SCROLL_MS = 16; 677 678 // Buffer pixels of the caret rectangle when moving edit text into view 679 // after resize. 680 static private final int EDIT_RECT_BUFFER = 10; 681 682 // true means redraw the screen all-the-time. Only with AUTO_REDRAW_HACK 683 private boolean mAutoRedraw; 684 685 // Reference to the AlertDialog displayed by InvokeListBox. 686 // It's used to dismiss the dialog in destroy if not done before. 687 private AlertDialog mListBoxDialog = null; 688 689 static final String LOGTAG = "webview"; 690 691 private ZoomManager mZoomManager; 692 693 private final Rect mInvScreenRect = new Rect(); 694 private final Rect mScreenRect = new Rect(); 695 private final RectF mVisibleContentRect = new RectF(); 696 private boolean mIsWebViewVisible = true; 697 WebViewInputConnection mInputConnection = null; 698 private int mFieldPointer; 699 private PastePopupWindow mPasteWindow; 700 private AutoCompletePopup mAutoCompletePopup; 701 Rect mEditTextContentBounds = new Rect(); 702 Rect mEditTextContent = new Rect(); 703 int mEditTextLayerId; 704 boolean mIsEditingText = false; 705 ArrayList<Message> mBatchedTextChanges = new ArrayList<Message>(); 706 boolean mIsBatchingTextChanges = false; 707 private long mLastEditScroll = 0; 708 709 private static class OnTrimMemoryListener implements ComponentCallbacks2 { 710 private static OnTrimMemoryListener sInstance = null; 711 712 static void init(Context c) { 713 if (sInstance == null) { 714 sInstance = new OnTrimMemoryListener(c.getApplicationContext()); 715 } 716 } 717 718 private OnTrimMemoryListener(Context c) { 719 c.registerComponentCallbacks(this); 720 } 721 722 @Override 723 public void onConfigurationChanged(Configuration newConfig) { 724 // Ignore 725 } 726 727 @Override 728 public void onLowMemory() { 729 // Ignore 730 } 731 732 @Override 733 public void onTrimMemory(int level) { 734 if (DebugFlags.WEB_VIEW) { 735 Log.d("WebView", "onTrimMemory: " + level); 736 } 737 // When framework reset EGL context during high memory pressure, all 738 // the existing GL resources for the html5 video will be destroyed 739 // at native side. 740 // Here we just need to clean up the Surface Texture which is static. 741 if (level >= TRIM_MEMORY_UI_HIDDEN) { 742 HTML5VideoInline.cleanupSurfaceTexture(); 743 } 744 WebViewClassic.nativeOnTrimMemory(level); 745 } 746 747 } 748 749 // A final CallbackProxy shared by WebViewCore and BrowserFrame. 750 private CallbackProxy mCallbackProxy; 751 752 private WebViewDatabaseClassic mDatabase; 753 754 // SSL certificate for the main top-level page (if secure) 755 private SslCertificate mCertificate; 756 757 // Native WebView pointer that is 0 until the native object has been 758 // created. 759 private int mNativeClass; 760 // This would be final but it needs to be set to null when the WebView is 761 // destroyed. 762 private WebViewCore mWebViewCore; 763 // Handler for dispatching UI messages. 764 /* package */ final Handler mPrivateHandler = new PrivateHandler(); 765 // Used to ignore changes to webkit text that arrives to the UI side after 766 // more key events. 767 private int mTextGeneration; 768 769 /* package */ void incrementTextGeneration() { mTextGeneration++; } 770 771 // Used by WebViewCore to create child views. 772 /* package */ ViewManager mViewManager; 773 774 // Used to display in full screen mode 775 PluginFullScreenHolder mFullScreenHolder; 776 777 /** 778 * Position of the last touch event in pixels. 779 * Use integer to prevent loss of dragging delta calculation accuracy; 780 * which was done in float and converted to integer, and resulted in gradual 781 * and compounding touch position and view dragging mismatch. 782 */ 783 private int mLastTouchX; 784 private int mLastTouchY; 785 private int mStartTouchX; 786 private int mStartTouchY; 787 private float mAverageAngle; 788 789 /** 790 * Time of the last touch event. 791 */ 792 private long mLastTouchTime; 793 794 /** 795 * Time of the last time sending touch event to WebViewCore 796 */ 797 private long mLastSentTouchTime; 798 799 /** 800 * The minimum elapsed time before sending another ACTION_MOVE event to 801 * WebViewCore. This really should be tuned for each type of the devices. 802 * For example in Google Map api test case, it takes Dream device at least 803 * 150ms to do a full cycle in the WebViewCore by processing a touch event, 804 * triggering the layout and drawing the picture. While the same process 805 * takes 60+ms on the current high speed device. If we make 806 * TOUCH_SENT_INTERVAL too small, there will be multiple touch events sent 807 * to WebViewCore queue and the real layout and draw events will be pushed 808 * to further, which slows down the refresh rate. Choose 50 to favor the 809 * current high speed devices. For Dream like devices, 100 is a better 810 * choice. Maybe make this in the buildspec later. 811 * (Update 12/14/2010: changed to 0 since current device should be able to 812 * handle the raw events and Map team voted to have the raw events too. 813 */ 814 private static final int TOUCH_SENT_INTERVAL = 0; 815 private int mCurrentTouchInterval = TOUCH_SENT_INTERVAL; 816 817 /** 818 * Helper class to get velocity for fling 819 */ 820 VelocityTracker mVelocityTracker; 821 private int mMaximumFling; 822 private float mLastVelocity; 823 private float mLastVelX; 824 private float mLastVelY; 825 826 // The id of the native layer being scrolled. 827 private int mCurrentScrollingLayerId; 828 private Rect mScrollingLayerRect = new Rect(); 829 830 // only trigger accelerated fling if the new velocity is at least 831 // MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION times of the previous velocity 832 private static final float MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION = 0.2f; 833 834 /** 835 * Touch mode 836 * TODO: Some of this is now unnecessary as it is handled by 837 * WebInputTouchDispatcher (such as click, long press, and double tap). 838 */ 839 private int mTouchMode = TOUCH_DONE_MODE; 840 private static final int TOUCH_INIT_MODE = 1; 841 private static final int TOUCH_DRAG_START_MODE = 2; 842 private static final int TOUCH_DRAG_MODE = 3; 843 private static final int TOUCH_SHORTPRESS_START_MODE = 4; 844 private static final int TOUCH_SHORTPRESS_MODE = 5; 845 private static final int TOUCH_DOUBLE_TAP_MODE = 6; 846 private static final int TOUCH_DONE_MODE = 7; 847 private static final int TOUCH_PINCH_DRAG = 8; 848 private static final int TOUCH_DRAG_LAYER_MODE = 9; 849 private static final int TOUCH_DRAG_TEXT_MODE = 10; 850 851 // true when the touch movement exceeds the slop 852 private boolean mConfirmMove; 853 private boolean mTouchInEditText; 854 855 // Whether or not to draw the cursor ring. 856 private boolean mDrawCursorRing = true; 857 858 // true if onPause has been called (and not onResume) 859 private boolean mIsPaused; 860 861 private HitTestResult mInitialHitTestResult; 862 private WebKitHitTest mFocusedNode; 863 864 /** 865 * Customizable constant 866 */ 867 // pre-computed square of ViewConfiguration.getScaledTouchSlop() 868 private int mTouchSlopSquare; 869 // pre-computed square of ViewConfiguration.getScaledDoubleTapSlop() 870 private int mDoubleTapSlopSquare; 871 // pre-computed density adjusted navigation slop 872 private int mNavSlop; 873 // This should be ViewConfiguration.getTapTimeout() 874 // But system time out is 100ms, which is too short for the browser. 875 // In the browser, if it switches out of tap too soon, jump tap won't work. 876 // In addition, a double tap on a trackpad will always have a duration of 877 // 300ms, so this value must be at least that (otherwise we will timeout the 878 // first tap and convert it to a long press). 879 private static final int TAP_TIMEOUT = 300; 880 // This should be ViewConfiguration.getLongPressTimeout() 881 // But system time out is 500ms, which is too short for the browser. 882 // With a short timeout, it's difficult to treat trigger a short press. 883 private static final int LONG_PRESS_TIMEOUT = 1000; 884 // needed to avoid flinging after a pause of no movement 885 private static final int MIN_FLING_TIME = 250; 886 // draw unfiltered after drag is held without movement 887 private static final int MOTIONLESS_TIME = 100; 888 // The amount of content to overlap between two screens when going through 889 // pages with the space bar, in pixels. 890 private static final int PAGE_SCROLL_OVERLAP = 24; 891 892 /** 893 * These prevent calling requestLayout if either dimension is fixed. This 894 * depends on the layout parameters and the measure specs. 895 */ 896 boolean mWidthCanMeasure; 897 boolean mHeightCanMeasure; 898 899 // Remember the last dimensions we sent to the native side so we can avoid 900 // sending the same dimensions more than once. 901 int mLastWidthSent; 902 int mLastHeightSent; 903 // Since view height sent to webkit could be fixed to avoid relayout, this 904 // value records the last sent actual view height. 905 int mLastActualHeightSent; 906 907 private int mContentWidth; // cache of value from WebViewCore 908 private int mContentHeight; // cache of value from WebViewCore 909 910 // Need to have the separate control for horizontal and vertical scrollbar 911 // style than the View's single scrollbar style 912 private boolean mOverlayHorizontalScrollbar = true; 913 private boolean mOverlayVerticalScrollbar = false; 914 915 // our standard speed. this way small distances will be traversed in less 916 // time than large distances, but we cap the duration, so that very large 917 // distances won't take too long to get there. 918 private static final int STD_SPEED = 480; // pixels per second 919 // time for the longest scroll animation 920 private static final int MAX_DURATION = 750; // milliseconds 921 922 // Used by OverScrollGlow 923 OverScroller mScroller; 924 Scroller mEditTextScroller; 925 926 private boolean mInOverScrollMode = false; 927 private static Paint mOverScrollBackground; 928 private static Paint mOverScrollBorder; 929 930 private boolean mWrapContent; 931 private static final int MOTIONLESS_FALSE = 0; 932 private static final int MOTIONLESS_PENDING = 1; 933 private static final int MOTIONLESS_TRUE = 2; 934 private static final int MOTIONLESS_IGNORE = 3; 935 private int mHeldMotionless; 936 937 // Lazily-instantiated instance for injecting accessibility. 938 private AccessibilityInjector mAccessibilityInjector; 939 940 /** 941 * How long the caret handle will last without being touched. 942 */ 943 private static final long CARET_HANDLE_STAMINA_MS = 3000; 944 945 private Drawable mSelectHandleLeft; 946 private Drawable mSelectHandleRight; 947 private Drawable mSelectHandleCenter; 948 private Point mSelectOffset; 949 private Point mSelectCursorBase = new Point(); 950 private Rect mSelectHandleBaseBounds = new Rect(); 951 private int mSelectCursorBaseLayerId; 952 private QuadF mSelectCursorBaseTextQuad = new QuadF(); 953 private Point mSelectCursorExtent = new Point(); 954 private Rect mSelectHandleExtentBounds = new Rect(); 955 private int mSelectCursorExtentLayerId; 956 private QuadF mSelectCursorExtentTextQuad = new QuadF(); 957 private Point mSelectDraggingCursor; 958 private QuadF mSelectDraggingTextQuad; 959 private boolean mIsCaretSelection; 960 static final int HANDLE_ID_BASE = 0; 961 static final int HANDLE_ID_EXTENT = 1; 962 963 // the color used to highlight the touch rectangles 964 static final int HIGHLIGHT_COLOR = 0x6633b5e5; 965 // the region indicating where the user touched on the screen 966 private Region mTouchHighlightRegion = new Region(); 967 // the paint for the touch highlight 968 private Paint mTouchHightlightPaint = new Paint(); 969 // debug only 970 private static final boolean DEBUG_TOUCH_HIGHLIGHT = true; 971 private static final int TOUCH_HIGHLIGHT_ELAPSE_TIME = 2000; 972 private Paint mTouchCrossHairColor; 973 private int mTouchHighlightX; 974 private int mTouchHighlightY; 975 private boolean mShowTapHighlight; 976 977 // Basically this proxy is used to tell the Video to update layer tree at 978 // SetBaseLayer time and to pause when WebView paused. 979 private HTML5VideoViewProxy mHTML5VideoViewProxy; 980 981 // If we are using a set picture, don't send view updates to webkit 982 private boolean mBlockWebkitViewMessages = false; 983 984 // cached value used to determine if we need to switch drawing models 985 private boolean mHardwareAccelSkia = false; 986 987 /* 988 * Private message ids 989 */ 990 private static final int REMEMBER_PASSWORD = 1; 991 private static final int NEVER_REMEMBER_PASSWORD = 2; 992 private static final int SWITCH_TO_SHORTPRESS = 3; 993 private static final int SWITCH_TO_LONGPRESS = 4; 994 private static final int RELEASE_SINGLE_TAP = 5; 995 private static final int REQUEST_FORM_DATA = 6; 996 private static final int DRAG_HELD_MOTIONLESS = 8; 997 private static final int PREVENT_DEFAULT_TIMEOUT = 10; 998 private static final int SCROLL_SELECT_TEXT = 11; 999 1000 1001 private static final int FIRST_PRIVATE_MSG_ID = REMEMBER_PASSWORD; 1002 private static final int LAST_PRIVATE_MSG_ID = SCROLL_SELECT_TEXT; 1003 1004 /* 1005 * Package message ids 1006 */ 1007 static final int SCROLL_TO_MSG_ID = 101; 1008 static final int NEW_PICTURE_MSG_ID = 105; 1009 static final int WEBCORE_INITIALIZED_MSG_ID = 107; 1010 static final int UPDATE_TEXTFIELD_TEXT_MSG_ID = 108; 1011 static final int UPDATE_ZOOM_RANGE = 109; 1012 static final int TAKE_FOCUS = 110; 1013 static final int CLEAR_TEXT_ENTRY = 111; 1014 static final int UPDATE_TEXT_SELECTION_MSG_ID = 112; 1015 static final int SHOW_RECT_MSG_ID = 113; 1016 static final int LONG_PRESS_CENTER = 114; 1017 static final int PREVENT_TOUCH_ID = 115; 1018 static final int WEBCORE_NEED_TOUCH_EVENTS = 116; 1019 // obj=Rect in doc coordinates 1020 static final int INVAL_RECT_MSG_ID = 117; 1021 static final int REQUEST_KEYBOARD = 118; 1022 static final int SHOW_FULLSCREEN = 120; 1023 static final int HIDE_FULLSCREEN = 121; 1024 static final int UPDATE_MATCH_COUNT = 126; 1025 static final int CENTER_FIT_RECT = 127; 1026 static final int SET_SCROLLBAR_MODES = 129; 1027 static final int SELECTION_STRING_CHANGED = 130; 1028 static final int HIT_TEST_RESULT = 131; 1029 static final int SAVE_WEBARCHIVE_FINISHED = 132; 1030 1031 static final int SET_AUTOFILLABLE = 133; 1032 static final int AUTOFILL_COMPLETE = 134; 1033 1034 static final int SCREEN_ON = 136; 1035 static final int ENTER_FULLSCREEN_VIDEO = 137; 1036 static final int UPDATE_ZOOM_DENSITY = 139; 1037 static final int EXIT_FULLSCREEN_VIDEO = 140; 1038 1039 static final int COPY_TO_CLIPBOARD = 141; 1040 static final int INIT_EDIT_FIELD = 142; 1041 static final int REPLACE_TEXT = 143; 1042 static final int CLEAR_CARET_HANDLE = 144; 1043 static final int KEY_PRESS = 145; 1044 static final int RELOCATE_AUTO_COMPLETE_POPUP = 146; 1045 static final int FOCUS_NODE_CHANGED = 147; 1046 static final int AUTOFILL_FORM = 148; 1047 static final int SCROLL_EDIT_TEXT = 149; 1048 static final int EDIT_TEXT_SIZE_CHANGED = 150; 1049 static final int SHOW_CARET_HANDLE = 151; 1050 static final int UPDATE_CONTENT_BOUNDS = 152; 1051 1052 private static final int FIRST_PACKAGE_MSG_ID = SCROLL_TO_MSG_ID; 1053 private static final int LAST_PACKAGE_MSG_ID = HIT_TEST_RESULT; 1054 1055 static final String[] HandlerPrivateDebugString = { 1056 "REMEMBER_PASSWORD", // = 1; 1057 "NEVER_REMEMBER_PASSWORD", // = 2; 1058 "SWITCH_TO_SHORTPRESS", // = 3; 1059 "SWITCH_TO_LONGPRESS", // = 4; 1060 "RELEASE_SINGLE_TAP", // = 5; 1061 "REQUEST_FORM_DATA", // = 6; 1062 "RESUME_WEBCORE_PRIORITY", // = 7; 1063 "DRAG_HELD_MOTIONLESS", // = 8; 1064 "", // = 9; 1065 "PREVENT_DEFAULT_TIMEOUT", // = 10; 1066 "SCROLL_SELECT_TEXT" // = 11; 1067 }; 1068 1069 static final String[] HandlerPackageDebugString = { 1070 "SCROLL_TO_MSG_ID", // = 101; 1071 "102", // = 102; 1072 "103", // = 103; 1073 "104", // = 104; 1074 "NEW_PICTURE_MSG_ID", // = 105; 1075 "UPDATE_TEXT_ENTRY_MSG_ID", // = 106; 1076 "WEBCORE_INITIALIZED_MSG_ID", // = 107; 1077 "UPDATE_TEXTFIELD_TEXT_MSG_ID", // = 108; 1078 "UPDATE_ZOOM_RANGE", // = 109; 1079 "UNHANDLED_NAV_KEY", // = 110; 1080 "CLEAR_TEXT_ENTRY", // = 111; 1081 "UPDATE_TEXT_SELECTION_MSG_ID", // = 112; 1082 "SHOW_RECT_MSG_ID", // = 113; 1083 "LONG_PRESS_CENTER", // = 114; 1084 "PREVENT_TOUCH_ID", // = 115; 1085 "WEBCORE_NEED_TOUCH_EVENTS", // = 116; 1086 "INVAL_RECT_MSG_ID", // = 117; 1087 "REQUEST_KEYBOARD", // = 118; 1088 "DO_MOTION_UP", // = 119; 1089 "SHOW_FULLSCREEN", // = 120; 1090 "HIDE_FULLSCREEN", // = 121; 1091 "DOM_FOCUS_CHANGED", // = 122; 1092 "REPLACE_BASE_CONTENT", // = 123; 1093 "RETURN_LABEL", // = 125; 1094 "UPDATE_MATCH_COUNT", // = 126; 1095 "CENTER_FIT_RECT", // = 127; 1096 "REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID", // = 128; 1097 "SET_SCROLLBAR_MODES", // = 129; 1098 "SELECTION_STRING_CHANGED", // = 130; 1099 "SET_TOUCH_HIGHLIGHT_RECTS", // = 131; 1100 "SAVE_WEBARCHIVE_FINISHED", // = 132; 1101 "SET_AUTOFILLABLE", // = 133; 1102 "AUTOFILL_COMPLETE", // = 134; 1103 "SELECT_AT", // = 135; 1104 "SCREEN_ON", // = 136; 1105 "ENTER_FULLSCREEN_VIDEO", // = 137; 1106 "UPDATE_SELECTION", // = 138; 1107 "UPDATE_ZOOM_DENSITY" // = 139; 1108 }; 1109 1110 // If the site doesn't use the viewport meta tag to specify the viewport, 1111 // use DEFAULT_VIEWPORT_WIDTH as the default viewport width 1112 static final int DEFAULT_VIEWPORT_WIDTH = 980; 1113 1114 // normally we try to fit the content to the minimum preferred width 1115 // calculated by the Webkit. To avoid the bad behavior when some site's 1116 // minimum preferred width keeps growing when changing the viewport width or 1117 // the minimum preferred width is huge, an upper limit is needed. 1118 static int sMaxViewportWidth = DEFAULT_VIEWPORT_WIDTH; 1119 1120 // initial scale in percent. 0 means using default. 1121 private int mInitialScaleInPercent = 0; 1122 1123 // Whether or not a scroll event should be sent to webkit. This is only set 1124 // to false when restoring the scroll position. 1125 private boolean mSendScrollEvent = true; 1126 1127 private int mSnapScrollMode = SNAP_NONE; 1128 private static final int SNAP_NONE = 0; 1129 private static final int SNAP_LOCK = 1; // not a separate state 1130 private static final int SNAP_X = 2; // may be combined with SNAP_LOCK 1131 private static final int SNAP_Y = 4; // may be combined with SNAP_LOCK 1132 private boolean mSnapPositive; 1133 1134 // keep these in sync with their counterparts in WebView.cpp 1135 private static final int DRAW_EXTRAS_NONE = 0; 1136 private static final int DRAW_EXTRAS_SELECTION = 1; 1137 private static final int DRAW_EXTRAS_CURSOR_RING = 2; 1138 1139 // keep this in sync with WebCore:ScrollbarMode in WebKit 1140 private static final int SCROLLBAR_AUTO = 0; 1141 private static final int SCROLLBAR_ALWAYSOFF = 1; 1142 // as we auto fade scrollbar, this is ignored. 1143 private static final int SCROLLBAR_ALWAYSON = 2; 1144 private int mHorizontalScrollBarMode = SCROLLBAR_AUTO; 1145 private int mVerticalScrollBarMode = SCROLLBAR_AUTO; 1146 1147 /** 1148 * Max distance to overscroll by in pixels. 1149 * This how far content can be pulled beyond its normal bounds by the user. 1150 */ 1151 private int mOverscrollDistance; 1152 1153 /** 1154 * Max distance to overfling by in pixels. 1155 * This is how far flinged content can move beyond the end of its normal bounds. 1156 */ 1157 private int mOverflingDistance; 1158 1159 private OverScrollGlow mOverScrollGlow; 1160 1161 // Used to match key downs and key ups 1162 private Vector<Integer> mKeysPressed; 1163 1164 /* package */ static boolean mLogEvent = true; 1165 1166 // for event log 1167 private long mLastTouchUpTime = 0; 1168 1169 private WebViewCore.AutoFillData mAutoFillData; 1170 1171 private static boolean sNotificationsEnabled = true; 1172 1173 /** 1174 * URI scheme for telephone number 1175 */ 1176 public static final String SCHEME_TEL = "tel:"; 1177 /** 1178 * URI scheme for email address 1179 */ 1180 public static final String SCHEME_MAILTO = "mailto:"; 1181 /** 1182 * URI scheme for map address 1183 */ 1184 public static final String SCHEME_GEO = "geo:0,0?q="; 1185 1186 private int mBackgroundColor = Color.WHITE; 1187 1188 private static final long SELECT_SCROLL_INTERVAL = 1000 / 60; // 60 / second 1189 private int mAutoScrollX = 0; 1190 private int mAutoScrollY = 0; 1191 private int mMinAutoScrollX = 0; 1192 private int mMaxAutoScrollX = 0; 1193 private int mMinAutoScrollY = 0; 1194 private int mMaxAutoScrollY = 0; 1195 private Rect mScrollingLayerBounds = new Rect(); 1196 private boolean mSentAutoScrollMessage = false; 1197 1198 // used for serializing asynchronously handled touch events. 1199 private WebViewInputDispatcher mInputDispatcher; 1200 1201 // Used to track whether picture updating was paused due to a window focus change. 1202 private boolean mPictureUpdatePausedForFocusChange = false; 1203 1204 // Used to notify listeners of a new picture. 1205 private PictureListener mPictureListener; 1206 1207 // Used to notify listeners about find-on-page results. 1208 private WebView.FindListener mFindListener; 1209 1210 // Used to prevent resending save password message 1211 private Message mResumeMsg; 1212 1213 /** 1214 * Refer to {@link WebView#requestFocusNodeHref(Message)} for more information 1215 */ 1216 static class FocusNodeHref { 1217 static final String TITLE = "title"; 1218 static final String URL = "url"; 1219 static final String SRC = "src"; 1220 } 1221 1222 public WebViewClassic(WebView webView, WebView.PrivateAccess privateAccess) { 1223 mWebView = webView; 1224 mWebViewPrivate = privateAccess; 1225 mContext = webView.getContext(); 1226 } 1227 1228 /** 1229 * See {@link WebViewProvider#init(Map, boolean)} 1230 */ 1231 @Override 1232 public void init(Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { 1233 Context context = mContext; 1234 1235 // Used by the chrome stack to find application paths 1236 JniUtil.setContext(context); 1237 1238 mCallbackProxy = new CallbackProxy(context, this); 1239 mViewManager = new ViewManager(this); 1240 L10nUtils.setApplicationContext(context.getApplicationContext()); 1241 mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javaScriptInterfaces); 1242 mDatabase = WebViewDatabaseClassic.getInstance(context); 1243 mScroller = new OverScroller(context, null, 0, 0, false); //TODO Use OverScroller's flywheel 1244 mZoomManager = new ZoomManager(this, mCallbackProxy); 1245 1246 /* The init method must follow the creation of certain member variables, 1247 * such as the mZoomManager. 1248 */ 1249 init(); 1250 setupPackageListener(context); 1251 setupProxyListener(context); 1252 setupTrustStorageListener(context); 1253 updateMultiTouchSupport(context); 1254 1255 if (privateBrowsing) { 1256 startPrivateBrowsing(); 1257 } 1258 1259 mAutoFillData = new WebViewCore.AutoFillData(); 1260 mEditTextScroller = new Scroller(context); 1261 } 1262 1263 // WebViewProvider bindings 1264 1265 static class Factory implements WebViewFactoryProvider, WebViewFactoryProvider.Statics { 1266 @Override 1267 public String findAddress(String addr) { 1268 return WebViewClassic.findAddress(addr); 1269 } 1270 @Override 1271 public void setPlatformNotificationsEnabled(boolean enable) { 1272 if (enable) { 1273 WebViewClassic.enablePlatformNotifications(); 1274 } else { 1275 WebViewClassic.disablePlatformNotifications(); 1276 } 1277 } 1278 1279 @Override 1280 public Statics getStatics() { return this; } 1281 1282 @Override 1283 public WebViewProvider createWebView(WebView webView, WebView.PrivateAccess privateAccess) { 1284 return new WebViewClassic(webView, privateAccess); 1285 } 1286 1287 @Override 1288 public GeolocationPermissions getGeolocationPermissions() { 1289 return GeolocationPermissionsClassic.getInstance(); 1290 } 1291 1292 @Override 1293 public CookieManager getCookieManager() { 1294 return CookieManagerClassic.getInstance(); 1295 } 1296 1297 @Override 1298 public WebIconDatabase getWebIconDatabase() { 1299 return WebIconDatabaseClassic.getInstance(); 1300 } 1301 1302 @Override 1303 public WebStorage getWebStorage() { 1304 return WebStorageClassic.getInstance(); 1305 } 1306 1307 @Override 1308 public WebViewDatabase getWebViewDatabase(Context context) { 1309 return WebViewDatabaseClassic.getInstance(context); 1310 } 1311 } 1312 1313 private void onHandleUiEvent(MotionEvent event, int eventType, int flags) { 1314 switch (eventType) { 1315 case WebViewInputDispatcher.EVENT_TYPE_LONG_PRESS: 1316 HitTestResult hitTest = getHitTestResult(); 1317 if (hitTest != null) { 1318 performLongClick(); 1319 } 1320 break; 1321 case WebViewInputDispatcher.EVENT_TYPE_DOUBLE_TAP: 1322 mZoomManager.handleDoubleTap(event.getX(), event.getY()); 1323 break; 1324 case WebViewInputDispatcher.EVENT_TYPE_TOUCH: 1325 onHandleUiTouchEvent(event); 1326 break; 1327 case WebViewInputDispatcher.EVENT_TYPE_CLICK: 1328 if (mFocusedNode != null && mFocusedNode.mIntentUrl != null) { 1329 mWebView.playSoundEffect(SoundEffectConstants.CLICK); 1330 overrideLoading(mFocusedNode.mIntentUrl); 1331 } 1332 break; 1333 } 1334 } 1335 1336 private void onHandleUiTouchEvent(MotionEvent ev) { 1337 final ScaleGestureDetector detector = 1338 mZoomManager.getMultiTouchGestureDetector(); 1339 1340 float x = ev.getX(); 1341 float y = ev.getY(); 1342 1343 if (detector != null) { 1344 detector.onTouchEvent(ev); 1345 if (detector.isInProgress()) { 1346 mLastTouchTime = ev.getEventTime(); 1347 x = detector.getFocusX(); 1348 y = detector.getFocusY(); 1349 1350 mWebView.cancelLongPress(); 1351 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 1352 if (!mZoomManager.supportsPanDuringZoom()) { 1353 return; 1354 } 1355 mTouchMode = TOUCH_DRAG_MODE; 1356 if (mVelocityTracker == null) { 1357 mVelocityTracker = VelocityTracker.obtain(); 1358 } 1359 } 1360 } 1361 1362 int action = ev.getActionMasked(); 1363 if (action == MotionEvent.ACTION_POINTER_DOWN) { 1364 cancelTouch(); 1365 action = MotionEvent.ACTION_DOWN; 1366 } else if (action == MotionEvent.ACTION_POINTER_UP && ev.getPointerCount() >= 2) { 1367 // set mLastTouchX/Y to the remaining points for multi-touch. 1368 mLastTouchX = Math.round(x); 1369 mLastTouchY = Math.round(y); 1370 } else if (action == MotionEvent.ACTION_MOVE) { 1371 // negative x or y indicate it is on the edge, skip it. 1372 if (x < 0 || y < 0) { 1373 return; 1374 } 1375 } 1376 1377 handleTouchEventCommon(ev, action, Math.round(x), Math.round(y)); 1378 } 1379 1380 // The webview that is bound to this WebViewClassic instance. Primarily needed for supplying 1381 // as the first param in the WebViewClient and WebChromeClient callbacks. 1382 final private WebView mWebView; 1383 // Callback interface, provides priviledged access into the WebView instance. 1384 final private WebView.PrivateAccess mWebViewPrivate; 1385 // Cached reference to mWebView.getContext(), for convenience. 1386 final private Context mContext; 1387 1388 /** 1389 * @return The webview proxy that this classic webview is bound to. 1390 */ 1391 public WebView getWebView() { 1392 return mWebView; 1393 } 1394 1395 @Override 1396 public ViewDelegate getViewDelegate() { 1397 return this; 1398 } 1399 1400 @Override 1401 public ScrollDelegate getScrollDelegate() { 1402 return this; 1403 } 1404 1405 public static WebViewClassic fromWebView(WebView webView) { 1406 return webView == null ? null : (WebViewClassic) webView.getWebViewProvider(); 1407 } 1408 1409 // Accessors, purely for convenience (and to reduce code churn during webview proxy migration). 1410 int getScrollX() { 1411 return mWebView.getScrollX(); 1412 } 1413 1414 int getScrollY() { 1415 return mWebView.getScrollY(); 1416 } 1417 1418 int getWidth() { 1419 return mWebView.getWidth(); 1420 } 1421 1422 int getHeight() { 1423 return mWebView.getHeight(); 1424 } 1425 1426 Context getContext() { 1427 return mContext; 1428 } 1429 1430 void invalidate() { 1431 mWebView.invalidate(); 1432 } 1433 1434 // Setters for the Scroll X & Y, without invoking the onScrollChanged etc code paths. 1435 void setScrollXRaw(int mScrollX) { 1436 mWebViewPrivate.setScrollXRaw(mScrollX); 1437 } 1438 1439 void setScrollYRaw(int mScrollY) { 1440 mWebViewPrivate.setScrollYRaw(mScrollY); 1441 } 1442 1443 private static class TrustStorageListener extends BroadcastReceiver { 1444 @Override 1445 public void onReceive(Context context, Intent intent) { 1446 if (intent.getAction().equals(KeyChain.ACTION_STORAGE_CHANGED)) { 1447 handleCertTrustChanged(); 1448 } 1449 } 1450 } 1451 private static TrustStorageListener sTrustStorageListener; 1452 1453 /** 1454 * Handles update to the trust storage. 1455 */ 1456 private static void handleCertTrustChanged() { 1457 // send a message for indicating trust storage change 1458 WebViewCore.sendStaticMessage(EventHub.TRUST_STORAGE_UPDATED, null); 1459 } 1460 1461 /* 1462 * @param context This method expects this to be a valid context. 1463 */ 1464 private static void setupTrustStorageListener(Context context) { 1465 if (sTrustStorageListener != null ) { 1466 return; 1467 } 1468 IntentFilter filter = new IntentFilter(); 1469 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1470 sTrustStorageListener = new TrustStorageListener(); 1471 Intent current = 1472 context.getApplicationContext().registerReceiver(sTrustStorageListener, filter); 1473 if (current != null) { 1474 handleCertTrustChanged(); 1475 } 1476 } 1477 1478 private static class ProxyReceiver extends BroadcastReceiver { 1479 @Override 1480 public void onReceive(Context context, Intent intent) { 1481 if (intent.getAction().equals(Proxy.PROXY_CHANGE_ACTION)) { 1482 handleProxyBroadcast(intent); 1483 } 1484 } 1485 } 1486 1487 /* 1488 * Receiver for PROXY_CHANGE_ACTION, will be null when it is not added handling broadcasts. 1489 */ 1490 private static ProxyReceiver sProxyReceiver; 1491 1492 /* 1493 * @param context This method expects this to be a valid context 1494 */ 1495 private static synchronized void setupProxyListener(Context context) { 1496 if (sProxyReceiver != null || sNotificationsEnabled == false) { 1497 return; 1498 } 1499 IntentFilter filter = new IntentFilter(); 1500 filter.addAction(Proxy.PROXY_CHANGE_ACTION); 1501 sProxyReceiver = new ProxyReceiver(); 1502 Intent currentProxy = context.getApplicationContext().registerReceiver( 1503 sProxyReceiver, filter); 1504 if (currentProxy != null) { 1505 handleProxyBroadcast(currentProxy); 1506 } 1507 } 1508 1509 /* 1510 * @param context This method expects this to be a valid context 1511 */ 1512 private static synchronized void disableProxyListener(Context context) { 1513 if (sProxyReceiver == null) 1514 return; 1515 1516 context.getApplicationContext().unregisterReceiver(sProxyReceiver); 1517 sProxyReceiver = null; 1518 } 1519 1520 private static void handleProxyBroadcast(Intent intent) { 1521 ProxyProperties proxyProperties = (ProxyProperties)intent.getExtra(Proxy.EXTRA_PROXY_INFO); 1522 if (proxyProperties == null || proxyProperties.getHost() == null) { 1523 WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, null); 1524 return; 1525 } 1526 WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, proxyProperties); 1527 } 1528 1529 /* 1530 * A variable to track if there is a receiver added for ACTION_PACKAGE_ADDED 1531 * or ACTION_PACKAGE_REMOVED. 1532 */ 1533 private static boolean sPackageInstallationReceiverAdded = false; 1534 1535 /* 1536 * A set of Google packages we monitor for the 1537 * navigator.isApplicationInstalled() API. Add additional packages as 1538 * needed. 1539 */ 1540 private static Set<String> sGoogleApps; 1541 static { 1542 sGoogleApps = new HashSet<String>(); 1543 sGoogleApps.add("com.google.android.youtube"); 1544 } 1545 1546 private static class PackageListener extends BroadcastReceiver { 1547 @Override 1548 public void onReceive(Context context, Intent intent) { 1549 final String action = intent.getAction(); 1550 final String packageName = intent.getData().getSchemeSpecificPart(); 1551 final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 1552 if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) { 1553 // if it is replacing, refreshPlugins() when adding 1554 return; 1555 } 1556 1557 if (sGoogleApps.contains(packageName)) { 1558 if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1559 WebViewCore.sendStaticMessage(EventHub.ADD_PACKAGE_NAME, packageName); 1560 } else { 1561 WebViewCore.sendStaticMessage(EventHub.REMOVE_PACKAGE_NAME, packageName); 1562 } 1563 } 1564 1565 PluginManager pm = PluginManager.getInstance(context); 1566 if (pm.containsPluginPermissionAndSignatures(packageName)) { 1567 pm.refreshPlugins(Intent.ACTION_PACKAGE_ADDED.equals(action)); 1568 } 1569 } 1570 } 1571 1572 private void setupPackageListener(Context context) { 1573 1574 /* 1575 * we must synchronize the instance check and the creation of the 1576 * receiver to ensure that only ONE receiver exists for all WebView 1577 * instances. 1578 */ 1579 synchronized (WebViewClassic.class) { 1580 1581 // if the receiver already exists then we do not need to register it 1582 // again 1583 if (sPackageInstallationReceiverAdded) { 1584 return; 1585 } 1586 1587 IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); 1588 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1589 filter.addDataScheme("package"); 1590 BroadcastReceiver packageListener = new PackageListener(); 1591 context.getApplicationContext().registerReceiver(packageListener, filter); 1592 sPackageInstallationReceiverAdded = true; 1593 } 1594 1595 // check if any of the monitored apps are already installed 1596 AsyncTask<Void, Void, Set<String>> task = new AsyncTask<Void, Void, Set<String>>() { 1597 1598 @Override 1599 protected Set<String> doInBackground(Void... unused) { 1600 Set<String> installedPackages = new HashSet<String>(); 1601 PackageManager pm = mContext.getPackageManager(); 1602 for (String name : sGoogleApps) { 1603 try { 1604 pm.getPackageInfo(name, 1605 PackageManager.GET_ACTIVITIES | PackageManager.GET_SERVICES); 1606 installedPackages.add(name); 1607 } catch (PackageManager.NameNotFoundException e) { 1608 // package not found 1609 } 1610 } 1611 return installedPackages; 1612 } 1613 1614 // Executes on the UI thread 1615 @Override 1616 protected void onPostExecute(Set<String> installedPackages) { 1617 if (mWebViewCore != null) { 1618 mWebViewCore.sendMessage(EventHub.ADD_PACKAGE_NAMES, installedPackages); 1619 } 1620 } 1621 }; 1622 task.execute(); 1623 } 1624 1625 void updateMultiTouchSupport(Context context) { 1626 mZoomManager.updateMultiTouchSupport(context); 1627 } 1628 1629 private void init() { 1630 OnTrimMemoryListener.init(mContext); 1631 mWebView.setWillNotDraw(false); 1632 mWebView.setClickable(true); 1633 mWebView.setLongClickable(true); 1634 1635 final ViewConfiguration configuration = ViewConfiguration.get(mContext); 1636 int slop = configuration.getScaledTouchSlop(); 1637 mTouchSlopSquare = slop * slop; 1638 slop = configuration.getScaledDoubleTapSlop(); 1639 mDoubleTapSlopSquare = slop * slop; 1640 final float density = mContext.getResources().getDisplayMetrics().density; 1641 // use one line height, 16 based on our current default font, for how 1642 // far we allow a touch be away from the edge of a link 1643 mNavSlop = (int) (16 * density); 1644 mZoomManager.init(density); 1645 mMaximumFling = configuration.getScaledMaximumFlingVelocity(); 1646 1647 // Compute the inverse of the density squared. 1648 DRAG_LAYER_INVERSE_DENSITY_SQUARED = 1 / (density * density); 1649 1650 mOverscrollDistance = configuration.getScaledOverscrollDistance(); 1651 mOverflingDistance = configuration.getScaledOverflingDistance(); 1652 1653 setScrollBarStyle(mWebViewPrivate.super_getScrollBarStyle()); 1654 // Initially use a size of two, since the user is likely to only hold 1655 // down two keys at a time (shift + another key) 1656 mKeysPressed = new Vector<Integer>(2); 1657 mHTML5VideoViewProxy = null ; 1658 } 1659 1660 @Override 1661 public boolean shouldDelayChildPressedState() { 1662 return true; 1663 } 1664 1665 @Override 1666 public boolean performAccessibilityAction(int action, Bundle arguments) { 1667 if (!mWebView.isEnabled()) { 1668 // Only default actions are supported while disabled. 1669 return mWebViewPrivate.super_performAccessibilityAction(action, arguments); 1670 } 1671 1672 if (getAccessibilityInjector().supportsAccessibilityAction(action)) { 1673 return getAccessibilityInjector().performAccessibilityAction(action, arguments); 1674 } 1675 1676 switch (action) { 1677 case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: 1678 case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1679 final int convertedContentHeight = contentToViewY(getContentHeight()); 1680 final int adjustedViewHeight = getHeight() - mWebView.getPaddingTop() 1681 - mWebView.getPaddingBottom(); 1682 final int maxScrollY = Math.max(convertedContentHeight - adjustedViewHeight, 0); 1683 final boolean canScrollBackward = (getScrollY() > 0); 1684 final boolean canScrollForward = ((getScrollY() - maxScrollY) > 0); 1685 if ((action == AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD) && canScrollBackward) { 1686 mWebView.scrollBy(0, adjustedViewHeight); 1687 return true; 1688 } 1689 if ((action == AccessibilityNodeInfo.ACTION_SCROLL_FORWARD) && canScrollForward) { 1690 mWebView.scrollBy(0, -adjustedViewHeight); 1691 return true; 1692 } 1693 return false; 1694 } 1695 } 1696 1697 return mWebViewPrivate.super_performAccessibilityAction(action, arguments); 1698 } 1699 1700 @Override 1701 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 1702 if (!mWebView.isEnabled()) { 1703 // Only default actions are supported while disabled. 1704 return; 1705 } 1706 1707 info.setScrollable(isScrollableForAccessibility()); 1708 1709 final int convertedContentHeight = contentToViewY(getContentHeight()); 1710 final int adjustedViewHeight = getHeight() - mWebView.getPaddingTop() 1711 - mWebView.getPaddingBottom(); 1712 final int maxScrollY = Math.max(convertedContentHeight - adjustedViewHeight, 0); 1713 final boolean canScrollBackward = (getScrollY() > 0); 1714 final boolean canScrollForward = ((getScrollY() - maxScrollY) > 0); 1715 1716 if (canScrollForward) { 1717 info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1718 } 1719 1720 if (canScrollForward) { 1721 info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1722 } 1723 1724 getAccessibilityInjector().onInitializeAccessibilityNodeInfo(info); 1725 } 1726 1727 @Override 1728 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 1729 event.setScrollable(isScrollableForAccessibility()); 1730 event.setScrollX(getScrollX()); 1731 event.setScrollY(getScrollY()); 1732 final int convertedContentWidth = contentToViewX(getContentWidth()); 1733 final int adjustedViewWidth = getWidth() - mWebView.getPaddingLeft() 1734 - mWebView.getPaddingLeft(); 1735 event.setMaxScrollX(Math.max(convertedContentWidth - adjustedViewWidth, 0)); 1736 final int convertedContentHeight = contentToViewY(getContentHeight()); 1737 final int adjustedViewHeight = getHeight() - mWebView.getPaddingTop() 1738 - mWebView.getPaddingBottom(); 1739 event.setMaxScrollY(Math.max(convertedContentHeight - adjustedViewHeight, 0)); 1740 } 1741 1742 private boolean isAccessibilityEnabled() { 1743 return AccessibilityManager.getInstance(mContext).isEnabled(); 1744 } 1745 1746 private AccessibilityInjector getAccessibilityInjector() { 1747 if (mAccessibilityInjector == null) { 1748 mAccessibilityInjector = new AccessibilityInjector(this); 1749 } 1750 return mAccessibilityInjector; 1751 } 1752 1753 private boolean isScrollableForAccessibility() { 1754 return (contentToViewX(getContentWidth()) > getWidth() - mWebView.getPaddingLeft() 1755 - mWebView.getPaddingRight() 1756 || contentToViewY(getContentHeight()) > getHeight() - mWebView.getPaddingTop() 1757 - mWebView.getPaddingBottom()); 1758 } 1759 1760 @Override 1761 public void setOverScrollMode(int mode) { 1762 if (mode != View.OVER_SCROLL_NEVER) { 1763 if (mOverScrollGlow == null) { 1764 mOverScrollGlow = new OverScrollGlow(this); 1765 } 1766 } else { 1767 mOverScrollGlow = null; 1768 } 1769 } 1770 1771 /* package */ void adjustDefaultZoomDensity(int zoomDensity) { 1772 final float density = mContext.getResources().getDisplayMetrics().density 1773 * 100 / zoomDensity; 1774 updateDefaultZoomDensity(density); 1775 } 1776 1777 /* package */ void updateDefaultZoomDensity(float density) { 1778 mNavSlop = (int) (16 * density); 1779 mZoomManager.updateDefaultZoomDensity(density); 1780 } 1781 1782 /* package */ int getScaledNavSlop() { 1783 return viewToContentDimension(mNavSlop); 1784 } 1785 1786 /* package */ boolean onSavePassword(String schemePlusHost, String username, 1787 String password, final Message resumeMsg) { 1788 boolean rVal = false; 1789 if (resumeMsg == null) { 1790 // null resumeMsg implies saving password silently 1791 mDatabase.setUsernamePassword(schemePlusHost, username, password); 1792 } else { 1793 if (mResumeMsg != null) { 1794 Log.w(LOGTAG, "onSavePassword should not be called while dialog is up"); 1795 resumeMsg.sendToTarget(); 1796 return true; 1797 } 1798 mResumeMsg = resumeMsg; 1799 final Message remember = mPrivateHandler.obtainMessage( 1800 REMEMBER_PASSWORD); 1801 remember.getData().putString("host", schemePlusHost); 1802 remember.getData().putString("username", username); 1803 remember.getData().putString("password", password); 1804 remember.obj = resumeMsg; 1805 1806 final Message neverRemember = mPrivateHandler.obtainMessage( 1807 NEVER_REMEMBER_PASSWORD); 1808 neverRemember.getData().putString("host", schemePlusHost); 1809 neverRemember.getData().putString("username", username); 1810 neverRemember.getData().putString("password", password); 1811 neverRemember.obj = resumeMsg; 1812 1813 new AlertDialog.Builder(mContext) 1814 .setTitle(com.android.internal.R.string.save_password_label) 1815 .setMessage(com.android.internal.R.string.save_password_message) 1816 .setPositiveButton(com.android.internal.R.string.save_password_notnow, 1817 new DialogInterface.OnClickListener() { 1818 @Override 1819 public void onClick(DialogInterface dialog, int which) { 1820 if (mResumeMsg != null) { 1821 resumeMsg.sendToTarget(); 1822 mResumeMsg = null; 1823 } 1824 } 1825 }) 1826 .setNeutralButton(com.android.internal.R.string.save_password_remember, 1827 new DialogInterface.OnClickListener() { 1828 @Override 1829 public void onClick(DialogInterface dialog, int which) { 1830 if (mResumeMsg != null) { 1831 remember.sendToTarget(); 1832 mResumeMsg = null; 1833 } 1834 } 1835 }) 1836 .setNegativeButton(com.android.internal.R.string.save_password_never, 1837 new DialogInterface.OnClickListener() { 1838 @Override 1839 public void onClick(DialogInterface dialog, int which) { 1840 if (mResumeMsg != null) { 1841 neverRemember.sendToTarget(); 1842 mResumeMsg = null; 1843 } 1844 } 1845 }) 1846 .setOnCancelListener(new OnCancelListener() { 1847 @Override 1848 public void onCancel(DialogInterface dialog) { 1849 if (mResumeMsg != null) { 1850 resumeMsg.sendToTarget(); 1851 mResumeMsg = null; 1852 } 1853 } 1854 }).show(); 1855 // Return true so that WebViewCore will pause while the dialog is 1856 // up. 1857 rVal = true; 1858 } 1859 return rVal; 1860 } 1861 1862 @Override 1863 public void setScrollBarStyle(int style) { 1864 if (style == View.SCROLLBARS_INSIDE_INSET 1865 || style == View.SCROLLBARS_OUTSIDE_INSET) { 1866 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = false; 1867 } else { 1868 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = true; 1869 } 1870 } 1871 1872 /** 1873 * See {@link WebView#setHorizontalScrollbarOverlay(boolean)} 1874 */ 1875 @Override 1876 public void setHorizontalScrollbarOverlay(boolean overlay) { 1877 mOverlayHorizontalScrollbar = overlay; 1878 } 1879 1880 /** 1881 * See {@link WebView#setVerticalScrollbarOverlay(boolean) 1882 */ 1883 @Override 1884 public void setVerticalScrollbarOverlay(boolean overlay) { 1885 mOverlayVerticalScrollbar = overlay; 1886 } 1887 1888 /** 1889 * See {@link WebView#overlayHorizontalScrollbar()} 1890 */ 1891 @Override 1892 public boolean overlayHorizontalScrollbar() { 1893 return mOverlayHorizontalScrollbar; 1894 } 1895 1896 /** 1897 * See {@link WebView#overlayVerticalScrollbar()} 1898 */ 1899 @Override 1900 public boolean overlayVerticalScrollbar() { 1901 return mOverlayVerticalScrollbar; 1902 } 1903 1904 /* 1905 * Return the width of the view where the content of WebView should render 1906 * to. 1907 * Note: this can be called from WebCoreThread. 1908 */ 1909 /* package */ int getViewWidth() { 1910 if (!mWebView.isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) { 1911 return getWidth(); 1912 } else { 1913 return Math.max(0, getWidth() - mWebView.getVerticalScrollbarWidth()); 1914 } 1915 } 1916 1917 // Interface to enable the browser to override title bar handling. 1918 public interface TitleBarDelegate { 1919 int getTitleHeight(); 1920 public void onSetEmbeddedTitleBar(final View title); 1921 } 1922 1923 /** 1924 * Returns the height (in pixels) of the embedded title bar (if any). Does not care about 1925 * scrolling 1926 */ 1927 protected int getTitleHeight() { 1928 if (mWebView instanceof TitleBarDelegate) { 1929 return ((TitleBarDelegate) mWebView).getTitleHeight(); 1930 } 1931 return 0; 1932 } 1933 1934 /** 1935 * See {@link WebView#getVisibleTitleHeight()} 1936 */ 1937 @Override 1938 @Deprecated 1939 public int getVisibleTitleHeight() { 1940 // Actually, this method returns the height of the embedded title bar if one is set via the 1941 // hidden setEmbeddedTitleBar method. 1942 return getVisibleTitleHeightImpl(); 1943 } 1944 1945 private int getVisibleTitleHeightImpl() { 1946 // need to restrict mScrollY due to over scroll 1947 return Math.max(getTitleHeight() - Math.max(0, getScrollY()), 1948 getOverlappingActionModeHeight()); 1949 } 1950 1951 private int mCachedOverlappingActionModeHeight = -1; 1952 1953 private int getOverlappingActionModeHeight() { 1954 if (mFindCallback == null) { 1955 return 0; 1956 } 1957 if (mCachedOverlappingActionModeHeight < 0) { 1958 mWebView.getGlobalVisibleRect(mGlobalVisibleRect, mGlobalVisibleOffset); 1959 mCachedOverlappingActionModeHeight = Math.max(0, 1960 mFindCallback.getActionModeGlobalBottom() - mGlobalVisibleRect.top); 1961 } 1962 return mCachedOverlappingActionModeHeight; 1963 } 1964 1965 /* 1966 * Return the height of the view where the content of WebView should render 1967 * to. Note that this excludes mTitleBar, if there is one. 1968 * Note: this can be called from WebCoreThread. 1969 */ 1970 /* package */ int getViewHeight() { 1971 return getViewHeightWithTitle() - getVisibleTitleHeightImpl(); 1972 } 1973 1974 int getViewHeightWithTitle() { 1975 int height = getHeight(); 1976 if (mWebView.isHorizontalScrollBarEnabled() && !mOverlayHorizontalScrollbar) { 1977 height -= mWebViewPrivate.getHorizontalScrollbarHeight(); 1978 } 1979 return height; 1980 } 1981 1982 /** 1983 * See {@link WebView#getCertificate()} 1984 */ 1985 @Override 1986 public SslCertificate getCertificate() { 1987 return mCertificate; 1988 } 1989 1990 /** 1991 * See {@link WebView#setCertificate(SslCertificate)} 1992 */ 1993 @Override 1994 public void setCertificate(SslCertificate certificate) { 1995 if (DebugFlags.WEB_VIEW) { 1996 Log.v(LOGTAG, "setCertificate=" + certificate); 1997 } 1998 // here, the certificate can be null (if the site is not secure) 1999 mCertificate = certificate; 2000 } 2001 2002 //------------------------------------------------------------------------- 2003 // Methods called by activity 2004 //------------------------------------------------------------------------- 2005 2006 /** 2007 * See {@link WebView#savePassword(String, String, String)} 2008 */ 2009 @Override 2010 public void savePassword(String host, String username, String password) { 2011 mDatabase.setUsernamePassword(host, username, password); 2012 } 2013 2014 /** 2015 * See {@link WebView#setHttpAuthUsernamePassword(String, String, String, String)} 2016 */ 2017 @Override 2018 public void setHttpAuthUsernamePassword(String host, String realm, 2019 String username, String password) { 2020 mDatabase.setHttpAuthUsernamePassword(host, realm, username, password); 2021 } 2022 2023 /** 2024 * See {@link WebView#getHttpAuthUsernamePassword(String, String)} 2025 */ 2026 @Override 2027 public String[] getHttpAuthUsernamePassword(String host, String realm) { 2028 return mDatabase.getHttpAuthUsernamePassword(host, realm); 2029 } 2030 2031 /** 2032 * Remove Find or Select ActionModes, if active. 2033 */ 2034 private void clearActionModes() { 2035 if (mSelectCallback != null) { 2036 mSelectCallback.finish(); 2037 } 2038 if (mFindCallback != null) { 2039 mFindCallback.finish(); 2040 } 2041 } 2042 2043 /** 2044 * Called to clear state when moving from one page to another, or changing 2045 * in some other way that makes elements associated with the current page 2046 * (such as ActionModes) no longer relevant. 2047 */ 2048 private void clearHelpers() { 2049 hideSoftKeyboard(); 2050 clearActionModes(); 2051 dismissFullScreenMode(); 2052 cancelSelectDialog(); 2053 } 2054 2055 private void cancelSelectDialog() { 2056 if (mListBoxDialog != null) { 2057 mListBoxDialog.cancel(); 2058 mListBoxDialog = null; 2059 } 2060 } 2061 2062 /** 2063 * See {@link WebView#destroy()} 2064 */ 2065 @Override 2066 public void destroy() { 2067 if (mWebView.getViewRootImpl() != null) { 2068 Log.e(LOGTAG, "Error: WebView.destroy() called while still attached!"); 2069 } 2070 ensureFunctorDetached(); 2071 destroyJava(); 2072 destroyNative(); 2073 } 2074 2075 private void ensureFunctorDetached() { 2076 if (mWebView.isHardwareAccelerated()) { 2077 int drawGLFunction = nativeGetDrawGLFunction(mNativeClass); 2078 ViewRootImpl viewRoot = mWebView.getViewRootImpl(); 2079 if (drawGLFunction != 0 && viewRoot != null) { 2080 viewRoot.detachFunctor(drawGLFunction); 2081 } 2082 } 2083 } 2084 2085 private void destroyJava() { 2086 mCallbackProxy.blockMessages(); 2087 clearHelpers(); 2088 if (mListBoxDialog != null) { 2089 mListBoxDialog.dismiss(); 2090 mListBoxDialog = null; 2091 } 2092 if (mWebViewCore != null) { 2093 // Tell WebViewCore to destroy itself 2094 synchronized (this) { 2095 WebViewCore webViewCore = mWebViewCore; 2096 mWebViewCore = null; // prevent using partial webViewCore 2097 webViewCore.destroy(); 2098 } 2099 // Remove any pending messages that might not be serviced yet. 2100 mPrivateHandler.removeCallbacksAndMessages(null); 2101 } 2102 } 2103 2104 private void destroyNative() { 2105 if (mNativeClass == 0) return; 2106 int nptr = mNativeClass; 2107 mNativeClass = 0; 2108 if (Thread.currentThread() == mPrivateHandler.getLooper().getThread()) { 2109 // We are on the main thread and can safely delete 2110 nativeDestroy(nptr); 2111 } else { 2112 mPrivateHandler.post(new DestroyNativeRunnable(nptr)); 2113 } 2114 } 2115 2116 private static class DestroyNativeRunnable implements Runnable { 2117 2118 private int mNativePtr; 2119 2120 public DestroyNativeRunnable(int nativePtr) { 2121 mNativePtr = nativePtr; 2122 } 2123 2124 @Override 2125 public void run() { 2126 // nativeDestroy also does a stopGL() 2127 nativeDestroy(mNativePtr); 2128 } 2129 2130 } 2131 2132 /** 2133 * See {@link WebView#enablePlatformNotifications()} 2134 */ 2135 @Deprecated 2136 public static void enablePlatformNotifications() { 2137 synchronized (WebViewClassic.class) { 2138 sNotificationsEnabled = true; 2139 Context context = JniUtil.getContext(); 2140 if (context != null) 2141 setupProxyListener(context); 2142 } 2143 } 2144 2145 /** 2146 * See {@link WebView#disablePlatformNotifications()} 2147 */ 2148 @Deprecated 2149 public static void disablePlatformNotifications() { 2150 synchronized (WebViewClassic.class) { 2151 sNotificationsEnabled = false; 2152 Context context = JniUtil.getContext(); 2153 if (context != null) 2154 disableProxyListener(context); 2155 } 2156 } 2157 2158 /** 2159 * Sets JavaScript engine flags. 2160 * 2161 * @param flags JS engine flags in a String 2162 * 2163 * This is an implementation detail. 2164 */ 2165 public void setJsFlags(String flags) { 2166 mWebViewCore.sendMessage(EventHub.SET_JS_FLAGS, flags); 2167 } 2168 2169 /** 2170 * See {@link WebView#setNetworkAvailable(boolean)} 2171 */ 2172 @Override 2173 public void setNetworkAvailable(boolean networkUp) { 2174 mWebViewCore.sendMessage(EventHub.SET_NETWORK_STATE, 2175 networkUp ? 1 : 0, 0); 2176 } 2177 2178 /** 2179 * Inform WebView about the current network type. 2180 */ 2181 public void setNetworkType(String type, String subtype) { 2182 Map<String, String> map = new HashMap<String, String>(); 2183 map.put("type", type); 2184 map.put("subtype", subtype); 2185 mWebViewCore.sendMessage(EventHub.SET_NETWORK_TYPE, map); 2186 } 2187 2188 /** 2189 * See {@link WebView#saveState(Bundle)} 2190 */ 2191 @Override 2192 public WebBackForwardList saveState(Bundle outState) { 2193 if (outState == null) { 2194 return null; 2195 } 2196 // We grab a copy of the back/forward list because a client of WebView 2197 // may have invalidated the history list by calling clearHistory. 2198 WebBackForwardList list = copyBackForwardList(); 2199 final int currentIndex = list.getCurrentIndex(); 2200 final int size = list.getSize(); 2201 // We should fail saving the state if the list is empty or the index is 2202 // not in a valid range. 2203 if (currentIndex < 0 || currentIndex >= size || size == 0) { 2204 return null; 2205 } 2206 outState.putInt("index", currentIndex); 2207 // FIXME: This should just be a byte[][] instead of ArrayList but 2208 // Parcel.java does not have the code to handle multi-dimensional 2209 // arrays. 2210 ArrayList<byte[]> history = new ArrayList<byte[]>(size); 2211 for (int i = 0; i < size; i++) { 2212 WebHistoryItem item = list.getItemAtIndex(i); 2213 if (null == item) { 2214 // FIXME: this shouldn't happen 2215 // need to determine how item got set to null 2216 Log.w(LOGTAG, "saveState: Unexpected null history item."); 2217 return null; 2218 } 2219 byte[] data = item.getFlattenedData(); 2220 if (data == null) { 2221 // It would be very odd to not have any data for a given history 2222 // item. And we will fail to rebuild the history list without 2223 // flattened data. 2224 return null; 2225 } 2226 history.add(data); 2227 } 2228 outState.putSerializable("history", history); 2229 if (mCertificate != null) { 2230 outState.putBundle("certificate", 2231 SslCertificate.saveState(mCertificate)); 2232 } 2233 outState.putBoolean("privateBrowsingEnabled", isPrivateBrowsingEnabled()); 2234 mZoomManager.saveZoomState(outState); 2235 return list; 2236 } 2237 2238 /** 2239 * See {@link WebView#savePicture(Bundle, File)} 2240 */ 2241 @Override 2242 @Deprecated 2243 public boolean savePicture(Bundle b, final File dest) { 2244 if (dest == null || b == null) { 2245 return false; 2246 } 2247 final Picture p = capturePicture(); 2248 // Use a temporary file while writing to ensure the destination file 2249 // contains valid data. 2250 final File temp = new File(dest.getPath() + ".writing"); 2251 new Thread(new Runnable() { 2252 @Override 2253 public void run() { 2254 FileOutputStream out = null; 2255 try { 2256 out = new FileOutputStream(temp); 2257 p.writeToStream(out); 2258 // Writing the picture succeeded, rename the temporary file 2259 // to the destination. 2260 temp.renameTo(dest); 2261 } catch (Exception e) { 2262 // too late to do anything about it. 2263 } finally { 2264 if (out != null) { 2265 try { 2266 out.close(); 2267 } catch (Exception e) { 2268 // Can't do anything about that 2269 } 2270 } 2271 temp.delete(); 2272 } 2273 } 2274 }).start(); 2275 // now update the bundle 2276 b.putInt("scrollX", getScrollX()); 2277 b.putInt("scrollY", getScrollY()); 2278 mZoomManager.saveZoomState(b); 2279 return true; 2280 } 2281 2282 private void restoreHistoryPictureFields(Picture p, Bundle b) { 2283 int sx = b.getInt("scrollX", 0); 2284 int sy = b.getInt("scrollY", 0); 2285 2286 mDrawHistory = true; 2287 mHistoryPicture = p; 2288 2289 setScrollXRaw(sx); 2290 setScrollYRaw(sy); 2291 mZoomManager.restoreZoomState(b); 2292 final float scale = mZoomManager.getScale(); 2293 mHistoryWidth = Math.round(p.getWidth() * scale); 2294 mHistoryHeight = Math.round(p.getHeight() * scale); 2295 2296 invalidate(); 2297 } 2298 2299 /** 2300 * See {@link WebView#restorePicture(Bundle, File)}; 2301 */ 2302 @Override 2303 @Deprecated 2304 public boolean restorePicture(Bundle b, File src) { 2305 if (src == null || b == null) { 2306 return false; 2307 } 2308 if (!src.exists()) { 2309 return false; 2310 } 2311 try { 2312 final FileInputStream in = new FileInputStream(src); 2313 final Bundle copy = new Bundle(b); 2314 new Thread(new Runnable() { 2315 @Override 2316 public void run() { 2317 try { 2318 final Picture p = Picture.createFromStream(in); 2319 if (p != null) { 2320 // Post a runnable on the main thread to update the 2321 // history picture fields. 2322 mPrivateHandler.post(new Runnable() { 2323 @Override 2324 public void run() { 2325 restoreHistoryPictureFields(p, copy); 2326 } 2327 }); 2328 } 2329 } finally { 2330 try { 2331 in.close(); 2332 } catch (Exception e) { 2333 // Nothing we can do now. 2334 } 2335 } 2336 } 2337 }).start(); 2338 } catch (FileNotFoundException e){ 2339 e.printStackTrace(); 2340 } 2341 return true; 2342 } 2343 2344 /** 2345 * Saves the view data to the output stream. The output is highly 2346 * version specific, and may not be able to be loaded by newer versions 2347 * of WebView. 2348 * @param stream The {@link OutputStream} to save to 2349 * @param callback The {@link ValueCallback} to call with the result 2350 */ 2351 public void saveViewState(OutputStream stream, ValueCallback<Boolean> callback) { 2352 if (mWebViewCore == null) { 2353 callback.onReceiveValue(false); 2354 return; 2355 } 2356 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SAVE_VIEW_STATE, 2357 new WebViewCore.SaveViewStateRequest(stream, callback)); 2358 } 2359 2360 /** 2361 * Loads the view data from the input stream. See 2362 * {@link #saveViewState(java.io.OutputStream, ValueCallback)} for more information. 2363 * @param stream The {@link InputStream} to load from 2364 */ 2365 public void loadViewState(InputStream stream) { 2366 mBlockWebkitViewMessages = true; 2367 new AsyncTask<InputStream, Void, DrawData>() { 2368 2369 @Override 2370 protected DrawData doInBackground(InputStream... params) { 2371 try { 2372 return ViewStateSerializer.deserializeViewState(params[0]); 2373 } catch (IOException e) { 2374 return null; 2375 } 2376 } 2377 2378 @Override 2379 protected void onPostExecute(DrawData draw) { 2380 if (draw == null) { 2381 Log.e(LOGTAG, "Failed to load view state!"); 2382 return; 2383 } 2384 int viewWidth = getViewWidth(); 2385 int viewHeight = getViewHeightWithTitle() - getTitleHeight(); 2386 draw.mViewSize = new Point(viewWidth, viewHeight); 2387 draw.mViewState.mDefaultScale = getDefaultZoomScale(); 2388 mLoadedPicture = draw; 2389 setNewPicture(mLoadedPicture, true); 2390 mLoadedPicture.mViewState = null; 2391 } 2392 2393 }.execute(stream); 2394 } 2395 2396 /** 2397 * Clears the view state set with {@link #loadViewState(InputStream)}. 2398 * This WebView will then switch to showing the content from webkit 2399 */ 2400 public void clearViewState() { 2401 mBlockWebkitViewMessages = false; 2402 mLoadedPicture = null; 2403 invalidate(); 2404 } 2405 2406 /** 2407 * See {@link WebView#restoreState(Bundle)} 2408 */ 2409 @Override 2410 public WebBackForwardList restoreState(Bundle inState) { 2411 WebBackForwardList returnList = null; 2412 if (inState == null) { 2413 return returnList; 2414 } 2415 if (inState.containsKey("index") && inState.containsKey("history")) { 2416 mCertificate = SslCertificate.restoreState( 2417 inState.getBundle("certificate")); 2418 2419 final WebBackForwardList list = mCallbackProxy.getBackForwardList(); 2420 final int index = inState.getInt("index"); 2421 // We can't use a clone of the list because we need to modify the 2422 // shared copy, so synchronize instead to prevent concurrent 2423 // modifications. 2424 synchronized (list) { 2425 final List<byte[]> history = 2426 (List<byte[]>) inState.getSerializable("history"); 2427 final int size = history.size(); 2428 // Check the index bounds so we don't crash in native code while 2429 // restoring the history index. 2430 if (index < 0 || index >= size) { 2431 return null; 2432 } 2433 for (int i = 0; i < size; i++) { 2434 byte[] data = history.remove(0); 2435 if (data == null) { 2436 // If we somehow have null data, we cannot reconstruct 2437 // the item and thus our history list cannot be rebuilt. 2438 return null; 2439 } 2440 WebHistoryItem item = new WebHistoryItem(data); 2441 list.addHistoryItem(item); 2442 } 2443 // Grab the most recent copy to return to the caller. 2444 returnList = copyBackForwardList(); 2445 // Update the copy to have the correct index. 2446 returnList.setCurrentIndex(index); 2447 } 2448 // Restore private browsing setting. 2449 if (inState.getBoolean("privateBrowsingEnabled")) { 2450 getSettings().setPrivateBrowsingEnabled(true); 2451 } 2452 mZoomManager.restoreZoomState(inState); 2453 // Remove all pending messages because we are restoring previous 2454 // state. 2455 mWebViewCore.removeMessages(); 2456 // Send a restore state message. 2457 mWebViewCore.sendMessage(EventHub.RESTORE_STATE, index); 2458 } 2459 return returnList; 2460 } 2461 2462 /** 2463 * See {@link WebView#loadUrl(String, Map)} 2464 */ 2465 @Override 2466 public void loadUrl(String url, Map<String, String> additionalHttpHeaders) { 2467 loadUrlImpl(url, additionalHttpHeaders); 2468 } 2469 2470 private void loadUrlImpl(String url, Map<String, String> extraHeaders) { 2471 switchOutDrawHistory(); 2472 WebViewCore.GetUrlData arg = new WebViewCore.GetUrlData(); 2473 arg.mUrl = url; 2474 arg.mExtraHeaders = extraHeaders; 2475 mWebViewCore.sendMessage(EventHub.LOAD_URL, arg); 2476 clearHelpers(); 2477 } 2478 2479 /** 2480 * See {@link WebView#loadUrl(String)} 2481 */ 2482 @Override 2483 public void loadUrl(String url) { 2484 loadUrlImpl(url); 2485 } 2486 2487 private void loadUrlImpl(String url) { 2488 if (url == null) { 2489 return; 2490 } 2491 loadUrlImpl(url, null); 2492 } 2493 2494 /** 2495 * See {@link WebView#postUrl(String, byte[])} 2496 */ 2497 @Override 2498 public void postUrl(String url, byte[] postData) { 2499 if (URLUtil.isNetworkUrl(url)) { 2500 switchOutDrawHistory(); 2501 WebViewCore.PostUrlData arg = new WebViewCore.PostUrlData(); 2502 arg.mUrl = url; 2503 arg.mPostData = postData; 2504 mWebViewCore.sendMessage(EventHub.POST_URL, arg); 2505 clearHelpers(); 2506 } else { 2507 loadUrlImpl(url); 2508 } 2509 } 2510 2511 /** 2512 * See {@link WebView#loadData(String, String, String)} 2513 */ 2514 @Override 2515 public void loadData(String data, String mimeType, String encoding) { 2516 loadDataImpl(data, mimeType, encoding); 2517 } 2518 2519 private void loadDataImpl(String data, String mimeType, String encoding) { 2520 StringBuilder dataUrl = new StringBuilder("data:"); 2521 dataUrl.append(mimeType); 2522 if ("base64".equals(encoding)) { 2523 dataUrl.append(";base64"); 2524 } 2525 dataUrl.append(","); 2526 dataUrl.append(data); 2527 loadUrlImpl(dataUrl.toString()); 2528 } 2529 2530 /** 2531 * See {@link WebView#loadDataWithBaseURL(String, String, String, String, String)} 2532 */ 2533 @Override 2534 public void loadDataWithBaseURL(String baseUrl, String data, 2535 String mimeType, String encoding, String historyUrl) { 2536 2537 if (baseUrl != null && baseUrl.toLowerCase().startsWith("data:")) { 2538 loadDataImpl(data, mimeType, encoding); 2539 return; 2540 } 2541 switchOutDrawHistory(); 2542 WebViewCore.BaseUrlData arg = new WebViewCore.BaseUrlData(); 2543 arg.mBaseUrl = baseUrl; 2544 arg.mData = data; 2545 arg.mMimeType = mimeType; 2546 arg.mEncoding = encoding; 2547 arg.mHistoryUrl = historyUrl; 2548 mWebViewCore.sendMessage(EventHub.LOAD_DATA, arg); 2549 clearHelpers(); 2550 } 2551 2552 /** 2553 * See {@link WebView#saveWebArchive(String)} 2554 */ 2555 @Override 2556 public void saveWebArchive(String filename) { 2557 saveWebArchiveImpl(filename, false, null); 2558 } 2559 2560 /* package */ static class SaveWebArchiveMessage { 2561 SaveWebArchiveMessage (String basename, boolean autoname, ValueCallback<String> callback) { 2562 mBasename = basename; 2563 mAutoname = autoname; 2564 mCallback = callback; 2565 } 2566 2567 /* package */ final String mBasename; 2568 /* package */ final boolean mAutoname; 2569 /* package */ final ValueCallback<String> mCallback; 2570 /* package */ String mResultFile; 2571 } 2572 2573 /** 2574 * See {@link WebView#saveWebArchive(String, boolean, ValueCallback)} 2575 */ 2576 @Override 2577 public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) { 2578 saveWebArchiveImpl(basename, autoname, callback); 2579 } 2580 2581 private void saveWebArchiveImpl(String basename, boolean autoname, 2582 ValueCallback<String> callback) { 2583 mWebViewCore.sendMessage(EventHub.SAVE_WEBARCHIVE, 2584 new SaveWebArchiveMessage(basename, autoname, callback)); 2585 } 2586 2587 /** 2588 * See {@link WebView#stopLoading()} 2589 */ 2590 @Override 2591 public void stopLoading() { 2592 // TODO: should we clear all the messages in the queue before sending 2593 // STOP_LOADING? 2594 switchOutDrawHistory(); 2595 mWebViewCore.sendMessage(EventHub.STOP_LOADING); 2596 } 2597 2598 /** 2599 * See {@link WebView#reload()} 2600 */ 2601 @Override 2602 public void reload() { 2603 clearHelpers(); 2604 switchOutDrawHistory(); 2605 mWebViewCore.sendMessage(EventHub.RELOAD); 2606 } 2607 2608 /** 2609 * See {@link WebView#canGoBack()} 2610 */ 2611 @Override 2612 public boolean canGoBack() { 2613 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2614 synchronized (l) { 2615 if (l.getClearPending()) { 2616 return false; 2617 } else { 2618 return l.getCurrentIndex() > 0; 2619 } 2620 } 2621 } 2622 2623 /** 2624 * See {@link WebView#goBack()} 2625 */ 2626 @Override 2627 public void goBack() { 2628 goBackOrForwardImpl(-1); 2629 } 2630 2631 /** 2632 * See {@link WebView#canGoForward()} 2633 */ 2634 @Override 2635 public boolean canGoForward() { 2636 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2637 synchronized (l) { 2638 if (l.getClearPending()) { 2639 return false; 2640 } else { 2641 return l.getCurrentIndex() < l.getSize() - 1; 2642 } 2643 } 2644 } 2645 2646 /** 2647 * See {@link WebView#goForward()} 2648 */ 2649 @Override 2650 public void goForward() { 2651 goBackOrForwardImpl(1); 2652 } 2653 2654 /** 2655 * See {@link WebView#canGoBackOrForward(int)} 2656 */ 2657 @Override 2658 public boolean canGoBackOrForward(int steps) { 2659 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2660 synchronized (l) { 2661 if (l.getClearPending()) { 2662 return false; 2663 } else { 2664 int newIndex = l.getCurrentIndex() + steps; 2665 return newIndex >= 0 && newIndex < l.getSize(); 2666 } 2667 } 2668 } 2669 2670 /** 2671 * See {@link WebView#goBackOrForward(int)} 2672 */ 2673 @Override 2674 public void goBackOrForward(int steps) { 2675 goBackOrForwardImpl(steps); 2676 } 2677 2678 private void goBackOrForwardImpl(int steps) { 2679 goBackOrForward(steps, false); 2680 } 2681 2682 private void goBackOrForward(int steps, boolean ignoreSnapshot) { 2683 if (steps != 0) { 2684 clearHelpers(); 2685 mWebViewCore.sendMessage(EventHub.GO_BACK_FORWARD, steps, 2686 ignoreSnapshot ? 1 : 0); 2687 } 2688 } 2689 2690 /** 2691 * See {@link WebView#isPrivateBrowsingEnabled()} 2692 */ 2693 @Override 2694 public boolean isPrivateBrowsingEnabled() { 2695 WebSettingsClassic settings = getSettings(); 2696 return (settings != null) ? settings.isPrivateBrowsingEnabled() : false; 2697 } 2698 2699 private void startPrivateBrowsing() { 2700 getSettings().setPrivateBrowsingEnabled(true); 2701 } 2702 2703 private boolean extendScroll(int y) { 2704 int finalY = mScroller.getFinalY(); 2705 int newY = pinLocY(finalY + y); 2706 if (newY == finalY) return false; 2707 mScroller.setFinalY(newY); 2708 mScroller.extendDuration(computeDuration(0, y)); 2709 return true; 2710 } 2711 2712 /** 2713 * See {@link WebView#pageUp(boolean)} 2714 */ 2715 @Override 2716 public boolean pageUp(boolean top) { 2717 if (mNativeClass == 0) { 2718 return false; 2719 } 2720 if (top) { 2721 // go to the top of the document 2722 return pinScrollTo(getScrollX(), 0, true, 0); 2723 } 2724 // Page up 2725 int h = getHeight(); 2726 int y; 2727 if (h > 2 * PAGE_SCROLL_OVERLAP) { 2728 y = -h + PAGE_SCROLL_OVERLAP; 2729 } else { 2730 y = -h / 2; 2731 } 2732 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 2733 : extendScroll(y); 2734 } 2735 2736 /** 2737 * See {@link WebView#pageDown(boolean)} 2738 */ 2739 @Override 2740 public boolean pageDown(boolean bottom) { 2741 if (mNativeClass == 0) { 2742 return false; 2743 } 2744 if (bottom) { 2745 return pinScrollTo(getScrollX(), computeRealVerticalScrollRange(), true, 0); 2746 } 2747 // Page down. 2748 int h = getHeight(); 2749 int y; 2750 if (h > 2 * PAGE_SCROLL_OVERLAP) { 2751 y = h - PAGE_SCROLL_OVERLAP; 2752 } else { 2753 y = h / 2; 2754 } 2755 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 2756 : extendScroll(y); 2757 } 2758 2759 /** 2760 * See {@link WebView#clearView()} 2761 */ 2762 @Override 2763 public void clearView() { 2764 mContentWidth = 0; 2765 mContentHeight = 0; 2766 setBaseLayer(0, false, false); 2767 mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); 2768 } 2769 2770 /** 2771 * See {@link WebView#capturePicture()} 2772 */ 2773 @Override 2774 public Picture capturePicture() { 2775 if (mNativeClass == 0) return null; 2776 Picture result = new Picture(); 2777 nativeCopyBaseContentToPicture(result); 2778 return result; 2779 } 2780 2781 /** 2782 * See {@link WebView#getScale()} 2783 */ 2784 @Override 2785 public float getScale() { 2786 return mZoomManager.getScale(); 2787 } 2788 2789 /** 2790 * Compute the reading level scale of the WebView 2791 * @param scale The current scale. 2792 * @return The reading level scale. 2793 */ 2794 /*package*/ float computeReadingLevelScale(float scale) { 2795 return mZoomManager.computeReadingLevelScale(scale); 2796 } 2797 2798 /** 2799 * See {@link WebView#setInitialScale(int)} 2800 */ 2801 @Override 2802 public void setInitialScale(int scaleInPercent) { 2803 mZoomManager.setInitialScaleInPercent(scaleInPercent); 2804 } 2805 2806 /** 2807 * See {@link WebView#invokeZoomPicker()} 2808 */ 2809 @Override 2810 public void invokeZoomPicker() { 2811 if (!getSettings().supportZoom()) { 2812 Log.w(LOGTAG, "This WebView doesn't support zoom."); 2813 return; 2814 } 2815 clearHelpers(); 2816 mZoomManager.invokeZoomPicker(); 2817 } 2818 2819 /** 2820 * See {@link WebView#getHitTestResult()} 2821 */ 2822 @Override 2823 public HitTestResult getHitTestResult() { 2824 return mInitialHitTestResult; 2825 } 2826 2827 // No left edge for double-tap zoom alignment 2828 static final int NO_LEFTEDGE = -1; 2829 2830 int getBlockLeftEdge(int x, int y, float readingScale) { 2831 float invReadingScale = 1.0f / readingScale; 2832 int readingWidth = (int) (getViewWidth() * invReadingScale); 2833 int left = NO_LEFTEDGE; 2834 if (mFocusedNode != null) { 2835 final int length = mFocusedNode.mEnclosingParentRects.length; 2836 for (int i = 0; i < length; i++) { 2837 Rect rect = mFocusedNode.mEnclosingParentRects[i]; 2838 if (rect.width() < mFocusedNode.mHitTestSlop) { 2839 // ignore bounding boxes that are too small 2840 continue; 2841 } else if (rect.width() > readingWidth) { 2842 // stop when bounding box doesn't fit the screen width 2843 // at reading scale 2844 break; 2845 } 2846 2847 left = rect.left; 2848 } 2849 } 2850 2851 return left; 2852 } 2853 2854 /** 2855 * See {@link WebView#requestFocusNodeHref(Message)} 2856 */ 2857 @Override 2858 public void requestFocusNodeHref(Message hrefMsg) { 2859 if (hrefMsg == null) { 2860 return; 2861 } 2862 int contentX = viewToContentX(mLastTouchX + getScrollX()); 2863 int contentY = viewToContentY(mLastTouchY + getScrollY()); 2864 if (mFocusedNode != null && mFocusedNode.mHitTestX == contentX 2865 && mFocusedNode.mHitTestY == contentY) { 2866 hrefMsg.getData().putString(FocusNodeHref.URL, mFocusedNode.mLinkUrl); 2867 hrefMsg.getData().putString(FocusNodeHref.TITLE, mFocusedNode.mAnchorText); 2868 hrefMsg.getData().putString(FocusNodeHref.SRC, mFocusedNode.mImageUrl); 2869 hrefMsg.sendToTarget(); 2870 return; 2871 } 2872 mWebViewCore.sendMessage(EventHub.REQUEST_CURSOR_HREF, 2873 contentX, contentY, hrefMsg); 2874 } 2875 2876 /** 2877 * See {@link WebView#requestImageRef(Message)} 2878 */ 2879 @Override 2880 public void requestImageRef(Message msg) { 2881 if (0 == mNativeClass) return; // client isn't initialized 2882 String url = mFocusedNode != null ? mFocusedNode.mImageUrl : null; 2883 Bundle data = msg.getData(); 2884 data.putString("url", url); 2885 msg.setData(data); 2886 msg.sendToTarget(); 2887 } 2888 2889 static int pinLoc(int x, int viewMax, int docMax) { 2890// Log.d(LOGTAG, "-- pinLoc " + x + " " + viewMax + " " + docMax); 2891 if (docMax < viewMax) { // the doc has room on the sides for "blank" 2892 // pin the short document to the top/left of the screen 2893 x = 0; 2894// Log.d(LOGTAG, "--- center " + x); 2895 } else if (x < 0) { 2896 x = 0; 2897// Log.d(LOGTAG, "--- zero"); 2898 } else if (x + viewMax > docMax) { 2899 x = docMax - viewMax; 2900// Log.d(LOGTAG, "--- pin " + x); 2901 } 2902 return x; 2903 } 2904 2905 // Expects x in view coordinates 2906 int pinLocX(int x) { 2907 if (mInOverScrollMode) return x; 2908 return pinLoc(x, getViewWidth(), computeRealHorizontalScrollRange()); 2909 } 2910 2911 // Expects y in view coordinates 2912 int pinLocY(int y) { 2913 if (mInOverScrollMode) return y; 2914 return pinLoc(y, getViewHeightWithTitle(), 2915 computeRealVerticalScrollRange() + getTitleHeight()); 2916 } 2917 2918 /** 2919 * Given a distance in view space, convert it to content space. Note: this 2920 * does not reflect translation, just scaling, so this should not be called 2921 * with coordinates, but should be called for dimensions like width or 2922 * height. 2923 */ 2924 private int viewToContentDimension(int d) { 2925 return Math.round(d * mZoomManager.getInvScale()); 2926 } 2927 2928 /** 2929 * Given an x coordinate in view space, convert it to content space. Also 2930 * may be used for absolute heights. 2931 */ 2932 /*package*/ int viewToContentX(int x) { 2933 return viewToContentDimension(x); 2934 } 2935 2936 /** 2937 * Given a y coordinate in view space, convert it to content space. 2938 * Takes into account the height of the title bar if there is one 2939 * embedded into the WebView. 2940 */ 2941 /*package*/ int viewToContentY(int y) { 2942 return viewToContentDimension(y - getTitleHeight()); 2943 } 2944 2945 /** 2946 * Given a x coordinate in view space, convert it to content space. 2947 * Returns the result as a float. 2948 */ 2949 private float viewToContentXf(int x) { 2950 return x * mZoomManager.getInvScale(); 2951 } 2952 2953 /** 2954 * Given a y coordinate in view space, convert it to content space. 2955 * Takes into account the height of the title bar if there is one 2956 * embedded into the WebView. Returns the result as a float. 2957 */ 2958 private float viewToContentYf(int y) { 2959 return (y - getTitleHeight()) * mZoomManager.getInvScale(); 2960 } 2961 2962 /** 2963 * Given a distance in content space, convert it to view space. Note: this 2964 * does not reflect translation, just scaling, so this should not be called 2965 * with coordinates, but should be called for dimensions like width or 2966 * height. 2967 */ 2968 /*package*/ int contentToViewDimension(int d) { 2969 return Math.round(d * mZoomManager.getScale()); 2970 } 2971 2972 /** 2973 * Given an x coordinate in content space, convert it to view 2974 * space. 2975 */ 2976 /*package*/ int contentToViewX(int x) { 2977 return contentToViewDimension(x); 2978 } 2979 2980 /** 2981 * Given a y coordinate in content space, convert it to view 2982 * space. Takes into account the height of the title bar. 2983 */ 2984 /*package*/ int contentToViewY(int y) { 2985 return contentToViewDimension(y) + getTitleHeight(); 2986 } 2987 2988 private Rect contentToViewRect(Rect x) { 2989 return new Rect(contentToViewX(x.left), contentToViewY(x.top), 2990 contentToViewX(x.right), contentToViewY(x.bottom)); 2991 } 2992 2993 /* To invalidate a rectangle in content coordinates, we need to transform 2994 the rect into view coordinates, so we can then call invalidate(...). 2995 2996 Normally, we would just call contentToView[XY](...), which eventually 2997 calls Math.round(coordinate * mActualScale). However, for invalidates, 2998 we need to account for the slop that occurs with antialiasing. To 2999 address that, we are a little more liberal in the size of the rect that 3000 we invalidate. 3001 3002 This liberal calculation calls floor() for the top/left, and ceil() for 3003 the bottom/right coordinates. This catches the possible extra pixels of 3004 antialiasing that we might have missed with just round(). 3005 */ 3006 3007 // Called by JNI to invalidate the View, given rectangle coordinates in 3008 // content space 3009 private void viewInvalidate(int l, int t, int r, int b) { 3010 final float scale = mZoomManager.getScale(); 3011 final int dy = getTitleHeight(); 3012 mWebView.invalidate((int)Math.floor(l * scale), 3013 (int)Math.floor(t * scale) + dy, 3014 (int)Math.ceil(r * scale), 3015 (int)Math.ceil(b * scale) + dy); 3016 } 3017 3018 // Called by JNI to invalidate the View after a delay, given rectangle 3019 // coordinates in content space 3020 private void viewInvalidateDelayed(long delay, int l, int t, int r, int b) { 3021 final float scale = mZoomManager.getScale(); 3022 final int dy = getTitleHeight(); 3023 mWebView.postInvalidateDelayed(delay, 3024 (int)Math.floor(l * scale), 3025 (int)Math.floor(t * scale) + dy, 3026 (int)Math.ceil(r * scale), 3027 (int)Math.ceil(b * scale) + dy); 3028 } 3029 3030 private void invalidateContentRect(Rect r) { 3031 viewInvalidate(r.left, r.top, r.right, r.bottom); 3032 } 3033 3034 // stop the scroll animation, and don't let a subsequent fling add 3035 // to the existing velocity 3036 private void abortAnimation() { 3037 mScroller.abortAnimation(); 3038 mLastVelocity = 0; 3039 } 3040 3041 /* call from webcoreview.draw(), so we're still executing in the UI thread 3042 */ 3043 private void recordNewContentSize(int w, int h, boolean updateLayout) { 3044 3045 // premature data from webkit, ignore 3046 if ((w | h) == 0) { 3047 invalidate(); 3048 return; 3049 } 3050 3051 // don't abort a scroll animation if we didn't change anything 3052 if (mContentWidth != w || mContentHeight != h) { 3053 // record new dimensions 3054 mContentWidth = w; 3055 mContentHeight = h; 3056 // If history Picture is drawn, don't update scroll. They will be 3057 // updated when we get out of that mode. 3058 if (!mDrawHistory) { 3059 // repin our scroll, taking into account the new content size 3060 updateScrollCoordinates(pinLocX(getScrollX()), pinLocY(getScrollY())); 3061 if (!mScroller.isFinished()) { 3062 // We are in the middle of a scroll. Repin the final scroll 3063 // position. 3064 mScroller.setFinalX(pinLocX(mScroller.getFinalX())); 3065 mScroller.setFinalY(pinLocY(mScroller.getFinalY())); 3066 } 3067 } 3068 invalidate(); 3069 } 3070 contentSizeChanged(updateLayout); 3071 } 3072 3073 // Used to avoid sending many visible rect messages. 3074 private Rect mLastVisibleRectSent = new Rect(); 3075 private Rect mLastGlobalRect = new Rect(); 3076 private Rect mVisibleRect = new Rect(); 3077 private Rect mGlobalVisibleRect = new Rect(); 3078 private Point mScrollOffset = new Point(); 3079 3080 Rect sendOurVisibleRect() { 3081 if (mZoomManager.isPreventingWebkitUpdates()) return mLastVisibleRectSent; 3082 calcOurContentVisibleRect(mVisibleRect); 3083 // Rect.equals() checks for null input. 3084 if (!mVisibleRect.equals(mLastVisibleRectSent)) { 3085 if (!mBlockWebkitViewMessages) { 3086 mScrollOffset.set(mVisibleRect.left, mVisibleRect.top); 3087 mWebViewCore.removeMessages(EventHub.SET_SCROLL_OFFSET); 3088 mWebViewCore.sendMessage(EventHub.SET_SCROLL_OFFSET, 3089 mSendScrollEvent ? 1 : 0, mScrollOffset); 3090 } 3091 mLastVisibleRectSent.set(mVisibleRect); 3092 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 3093 } 3094 if (mWebView.getGlobalVisibleRect(mGlobalVisibleRect) 3095 && !mGlobalVisibleRect.equals(mLastGlobalRect)) { 3096 if (DebugFlags.WEB_VIEW) { 3097 Log.v(LOGTAG, "sendOurVisibleRect=(" + mGlobalVisibleRect.left + "," 3098 + mGlobalVisibleRect.top + ",r=" + mGlobalVisibleRect.right + ",b=" 3099 + mGlobalVisibleRect.bottom); 3100 } 3101 // TODO: the global offset is only used by windowRect() 3102 // in ChromeClientAndroid ; other clients such as touch 3103 // and mouse events could return view + screen relative points. 3104 if (!mBlockWebkitViewMessages) { 3105 mWebViewCore.sendMessage(EventHub.SET_GLOBAL_BOUNDS, mGlobalVisibleRect); 3106 } 3107 mLastGlobalRect.set(mGlobalVisibleRect); 3108 } 3109 return mVisibleRect; 3110 } 3111 3112 private Point mGlobalVisibleOffset = new Point(); 3113 // Sets r to be the visible rectangle of our webview in view coordinates 3114 private void calcOurVisibleRect(Rect r) { 3115 mWebView.getGlobalVisibleRect(r, mGlobalVisibleOffset); 3116 r.offset(-mGlobalVisibleOffset.x, -mGlobalVisibleOffset.y); 3117 } 3118 3119 // Sets r to be our visible rectangle in content coordinates 3120 private void calcOurContentVisibleRect(Rect r) { 3121 calcOurVisibleRect(r); 3122 r.left = viewToContentX(r.left); 3123 // viewToContentY will remove the total height of the title bar. Add 3124 // the visible height back in to account for the fact that if the title 3125 // bar is partially visible, the part of the visible rect which is 3126 // displaying our content is displaced by that amount. 3127 r.top = viewToContentY(r.top + getVisibleTitleHeightImpl()); 3128 r.right = viewToContentX(r.right); 3129 r.bottom = viewToContentY(r.bottom); 3130 } 3131 3132 private final Rect mTempContentVisibleRect = new Rect(); 3133 // Sets r to be our visible rectangle in content coordinates. We use this 3134 // method on the native side to compute the position of the fixed layers. 3135 // Uses floating coordinates (necessary to correctly place elements when 3136 // the scale factor is not 1) 3137 private void calcOurContentVisibleRectF(RectF r) { 3138 calcOurVisibleRect(mTempContentVisibleRect); 3139 viewToContentVisibleRect(r, mTempContentVisibleRect); 3140 } 3141 3142 static class ViewSizeData { 3143 int mWidth; 3144 int mHeight; 3145 float mHeightWidthRatio; 3146 int mActualViewHeight; 3147 int mTextWrapWidth; 3148 int mAnchorX; 3149 int mAnchorY; 3150 float mScale; 3151 boolean mIgnoreHeight; 3152 } 3153 3154 /** 3155 * Compute unzoomed width and height, and if they differ from the last 3156 * values we sent, send them to webkit (to be used as new viewport) 3157 * 3158 * @param force ensures that the message is sent to webkit even if the width 3159 * or height has not changed since the last message 3160 * 3161 * @return true if new values were sent 3162 */ 3163 boolean sendViewSizeZoom(boolean force) { 3164 if (mBlockWebkitViewMessages) return false; 3165 if (mZoomManager.isPreventingWebkitUpdates()) return false; 3166 3167 int viewWidth = getViewWidth(); 3168 int newWidth = Math.round(viewWidth * mZoomManager.getInvScale()); 3169 // This height could be fixed and be different from actual visible height. 3170 int viewHeight = getViewHeightWithTitle() - getTitleHeight(); 3171 int newHeight = Math.round(viewHeight * mZoomManager.getInvScale()); 3172 // Make the ratio more accurate than (newHeight / newWidth), since the 3173 // latter both are calculated and rounded. 3174 float heightWidthRatio = (float) viewHeight / viewWidth; 3175 /* 3176 * Because the native side may have already done a layout before the 3177 * View system was able to measure us, we have to send a height of 0 to 3178 * remove excess whitespace when we grow our width. This will trigger a 3179 * layout and a change in content size. This content size change will 3180 * mean that contentSizeChanged will either call this method directly or 3181 * indirectly from onSizeChanged. 3182 */ 3183 if (newWidth > mLastWidthSent && mWrapContent) { 3184 newHeight = 0; 3185 heightWidthRatio = 0; 3186 } 3187 // Actual visible content height. 3188 int actualViewHeight = Math.round(getViewHeight() * mZoomManager.getInvScale()); 3189 // Avoid sending another message if the dimensions have not changed. 3190 if (newWidth != mLastWidthSent || newHeight != mLastHeightSent || force || 3191 actualViewHeight != mLastActualHeightSent) { 3192 ViewSizeData data = new ViewSizeData(); 3193 data.mWidth = newWidth; 3194 data.mHeight = newHeight; 3195 data.mHeightWidthRatio = heightWidthRatio; 3196 data.mActualViewHeight = actualViewHeight; 3197 data.mTextWrapWidth = Math.round(viewWidth / mZoomManager.getTextWrapScale()); 3198 data.mScale = mZoomManager.getScale(); 3199 data.mIgnoreHeight = mZoomManager.isFixedLengthAnimationInProgress() 3200 && !mHeightCanMeasure; 3201 data.mAnchorX = mZoomManager.getDocumentAnchorX(); 3202 data.mAnchorY = mZoomManager.getDocumentAnchorY(); 3203 mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, data); 3204 mLastWidthSent = newWidth; 3205 mLastHeightSent = newHeight; 3206 mLastActualHeightSent = actualViewHeight; 3207 mZoomManager.clearDocumentAnchor(); 3208 return true; 3209 } 3210 return false; 3211 } 3212 3213 /** 3214 * Update the double-tap zoom. 3215 */ 3216 /* package */ void updateDoubleTapZoom(int doubleTapZoom) { 3217 mZoomManager.updateDoubleTapZoom(doubleTapZoom); 3218 } 3219 3220 private int computeRealHorizontalScrollRange() { 3221 if (mDrawHistory) { 3222 return mHistoryWidth; 3223 } else { 3224 // to avoid rounding error caused unnecessary scrollbar, use floor 3225 return (int) Math.floor(mContentWidth * mZoomManager.getScale()); 3226 } 3227 } 3228 3229 @Override 3230 public int computeHorizontalScrollRange() { 3231 int range = computeRealHorizontalScrollRange(); 3232 3233 // Adjust reported range if overscrolled to compress the scroll bars 3234 final int scrollX = getScrollX(); 3235 final int overscrollRight = computeMaxScrollX(); 3236 if (scrollX < 0) { 3237 range -= scrollX; 3238 } else if (scrollX > overscrollRight) { 3239 range += scrollX - overscrollRight; 3240 } 3241 3242 return range; 3243 } 3244 3245 @Override 3246 public int computeHorizontalScrollOffset() { 3247 return Math.max(getScrollX(), 0); 3248 } 3249 3250 private int computeRealVerticalScrollRange() { 3251 if (mDrawHistory) { 3252 return mHistoryHeight; 3253 } else { 3254 // to avoid rounding error caused unnecessary scrollbar, use floor 3255 return (int) Math.floor(mContentHeight * mZoomManager.getScale()); 3256 } 3257 } 3258 3259 @Override 3260 public int computeVerticalScrollRange() { 3261 int range = computeRealVerticalScrollRange(); 3262 3263 // Adjust reported range if overscrolled to compress the scroll bars 3264 final int scrollY = getScrollY(); 3265 final int overscrollBottom = computeMaxScrollY(); 3266 if (scrollY < 0) { 3267 range -= scrollY; 3268 } else if (scrollY > overscrollBottom) { 3269 range += scrollY - overscrollBottom; 3270 } 3271 3272 return range; 3273 } 3274 3275 @Override 3276 public int computeVerticalScrollOffset() { 3277 return Math.max(getScrollY() - getTitleHeight(), 0); 3278 } 3279 3280 @Override 3281 public int computeVerticalScrollExtent() { 3282 return getViewHeight(); 3283 } 3284 3285 @Override 3286 public void onDrawVerticalScrollBar(Canvas canvas, 3287 Drawable scrollBar, 3288 int l, int t, int r, int b) { 3289 if (getScrollY() < 0) { 3290 t -= getScrollY(); 3291 } 3292 scrollBar.setBounds(l, t + getVisibleTitleHeightImpl(), r, b); 3293 scrollBar.draw(canvas); 3294 } 3295 3296 @Override 3297 public void onOverScrolled(int scrollX, int scrollY, boolean clampedX, 3298 boolean clampedY) { 3299 // Special-case layer scrolling so that we do not trigger normal scroll 3300 // updating. 3301 if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3302 scrollEditText(scrollX, scrollY); 3303 return; 3304 } 3305 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3306 scrollLayerTo(scrollX, scrollY); 3307 return; 3308 } 3309 mInOverScrollMode = false; 3310 int maxX = computeMaxScrollX(); 3311 int maxY = computeMaxScrollY(); 3312 if (maxX == 0) { 3313 // do not over scroll x if the page just fits the screen 3314 scrollX = pinLocX(scrollX); 3315 } else if (scrollX < 0 || scrollX > maxX) { 3316 mInOverScrollMode = true; 3317 } 3318 if (scrollY < 0 || scrollY > maxY) { 3319 mInOverScrollMode = true; 3320 } 3321 3322 int oldX = getScrollX(); 3323 int oldY = getScrollY(); 3324 3325 mWebViewPrivate.super_scrollTo(scrollX, scrollY); 3326 3327 if (mOverScrollGlow != null) { 3328 mOverScrollGlow.pullGlow(getScrollX(), getScrollY(), oldX, oldY, maxX, maxY); 3329 } 3330 } 3331 3332 /** 3333 * See {@link WebView#getUrl()} 3334 */ 3335 @Override 3336 public String getUrl() { 3337 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3338 return h != null ? h.getUrl() : null; 3339 } 3340 3341 /** 3342 * See {@link WebView#getOriginalUrl()} 3343 */ 3344 @Override 3345 public String getOriginalUrl() { 3346 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3347 return h != null ? h.getOriginalUrl() : null; 3348 } 3349 3350 /** 3351 * See {@link WebView#getTitle()} 3352 */ 3353 @Override 3354 public String getTitle() { 3355 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3356 return h != null ? h.getTitle() : null; 3357 } 3358 3359 /** 3360 * See {@link WebView#getFavicon()} 3361 */ 3362 @Override 3363 public Bitmap getFavicon() { 3364 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3365 return h != null ? h.getFavicon() : null; 3366 } 3367 3368 /** 3369 * See {@link WebView#getTouchIconUrl()} 3370 */ 3371 @Override 3372 public String getTouchIconUrl() { 3373 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3374 return h != null ? h.getTouchIconUrl() : null; 3375 } 3376 3377 /** 3378 * See {@link WebView#getProgress()} 3379 */ 3380 @Override 3381 public int getProgress() { 3382 return mCallbackProxy.getProgress(); 3383 } 3384 3385 /** 3386 * See {@link WebView#getContentHeight()} 3387 */ 3388 @Override 3389 public int getContentHeight() { 3390 return mContentHeight; 3391 } 3392 3393 /** 3394 * See {@link WebView#getContentWidth()} 3395 */ 3396 @Override 3397 public int getContentWidth() { 3398 return mContentWidth; 3399 } 3400 3401 public int getPageBackgroundColor() { 3402 if (mNativeClass == 0) return Color.WHITE; 3403 return nativeGetBackgroundColor(mNativeClass); 3404 } 3405 3406 /** 3407 * See {@link WebView#pauseTimers()} 3408 */ 3409 @Override 3410 public void pauseTimers() { 3411 mWebViewCore.sendMessage(EventHub.PAUSE_TIMERS); 3412 } 3413 3414 /** 3415 * See {@link WebView#resumeTimers()} 3416 */ 3417 @Override 3418 public void resumeTimers() { 3419 mWebViewCore.sendMessage(EventHub.RESUME_TIMERS); 3420 } 3421 3422 /** 3423 * See {@link WebView#onPause()} 3424 */ 3425 @Override 3426 public void onPause() { 3427 if (!mIsPaused) { 3428 mIsPaused = true; 3429 mWebViewCore.sendMessage(EventHub.ON_PAUSE); 3430 // We want to pause the current playing video when switching out 3431 // from the current WebView/tab. 3432 if (mHTML5VideoViewProxy != null) { 3433 mHTML5VideoViewProxy.pauseAndDispatch(); 3434 } 3435 if (mNativeClass != 0) { 3436 nativeSetPauseDrawing(mNativeClass, true); 3437 } 3438 3439 cancelSelectDialog(); 3440 WebCoreThreadWatchdog.pause(); 3441 } 3442 } 3443 3444 @Override 3445 public void onWindowVisibilityChanged(int visibility) { 3446 updateDrawingState(); 3447 } 3448 3449 void updateDrawingState() { 3450 if (mNativeClass == 0 || mIsPaused) return; 3451 if (mWebView.getWindowVisibility() != View.VISIBLE) { 3452 nativeSetPauseDrawing(mNativeClass, true); 3453 } else if (mWebView.getVisibility() != View.VISIBLE) { 3454 nativeSetPauseDrawing(mNativeClass, true); 3455 } else { 3456 nativeSetPauseDrawing(mNativeClass, false); 3457 } 3458 } 3459 3460 /** 3461 * See {@link WebView#onResume()} 3462 */ 3463 @Override 3464 public void onResume() { 3465 if (mIsPaused) { 3466 mIsPaused = false; 3467 mWebViewCore.sendMessage(EventHub.ON_RESUME); 3468 if (mNativeClass != 0) { 3469 nativeSetPauseDrawing(mNativeClass, false); 3470 } 3471 } 3472 // We get a call to onResume for new WebViews (i.e. mIsPaused will be false). We need 3473 // to ensure that the Watchdog thread is running for the new WebView, so call 3474 // it outside the if block above. 3475 WebCoreThreadWatchdog.resume(); 3476 } 3477 3478 /** 3479 * See {@link WebView#isPaused()} 3480 */ 3481 @Override 3482 public boolean isPaused() { 3483 return mIsPaused; 3484 } 3485 3486 /** 3487 * See {@link WebView#freeMemory()} 3488 */ 3489 @Override 3490 public void freeMemory() { 3491 mWebViewCore.sendMessage(EventHub.FREE_MEMORY); 3492 } 3493 3494 /** 3495 * See {@link WebView#clearCache(boolean)} 3496 */ 3497 @Override 3498 public void clearCache(boolean includeDiskFiles) { 3499 // Note: this really needs to be a static method as it clears cache for all 3500 // WebView. But we need mWebViewCore to send message to WebCore thread, so 3501 // we can't make this static. 3502 mWebViewCore.sendMessage(EventHub.CLEAR_CACHE, 3503 includeDiskFiles ? 1 : 0, 0); 3504 } 3505 3506 /** 3507 * See {@link WebView#clearFormData()} 3508 */ 3509 @Override 3510 public void clearFormData() { 3511 if (mAutoCompletePopup != null) { 3512 mAutoCompletePopup.clearAdapter(); 3513 } 3514 } 3515 3516 /** 3517 * See {@link WebView#clearHistory()} 3518 */ 3519 @Override 3520 public void clearHistory() { 3521 mCallbackProxy.getBackForwardList().setClearPending(); 3522 mWebViewCore.sendMessage(EventHub.CLEAR_HISTORY); 3523 } 3524 3525 /** 3526 * See {@link WebView#clearSslPreferences()} 3527 */ 3528 @Override 3529 public void clearSslPreferences() { 3530 mWebViewCore.sendMessage(EventHub.CLEAR_SSL_PREF_TABLE); 3531 } 3532 3533 /** 3534 * See {@link WebView#copyBackForwardList()} 3535 */ 3536 @Override 3537 public WebBackForwardList copyBackForwardList() { 3538 return mCallbackProxy.getBackForwardList().clone(); 3539 } 3540 3541 /** 3542 * See {@link WebView#setFindListener(WebView.FindListener)}. 3543 * @hide 3544 */ 3545 public void setFindListener(WebView.FindListener listener) { 3546 mFindListener = listener; 3547 } 3548 3549 /** 3550 * See {@link WebView#findNext(boolean)} 3551 */ 3552 @Override 3553 public void findNext(boolean forward) { 3554 if (0 == mNativeClass) return; // client isn't initialized 3555 if (mFindRequest != null) { 3556 mWebViewCore.sendMessage(EventHub.FIND_NEXT, forward ? 1 : 0, mFindRequest); 3557 } 3558 } 3559 3560 /** 3561 * See {@link WebView#findAll(String)} 3562 */ 3563 @Override 3564 public int findAll(String find) { 3565 return findAllBody(find, false); 3566 } 3567 3568 public void findAllAsync(String find) { 3569 findAllBody(find, true); 3570 } 3571 3572 private int findAllBody(String find, boolean isAsync) { 3573 if (0 == mNativeClass) return 0; // client isn't initialized 3574 mFindRequest = null; 3575 if (find == null) return 0; 3576 mWebViewCore.removeMessages(EventHub.FIND_ALL); 3577 mFindRequest = new WebViewCore.FindAllRequest(find); 3578 if (isAsync) { 3579 mWebViewCore.sendMessage(EventHub.FIND_ALL, mFindRequest); 3580 return 0; // no need to wait for response 3581 } 3582 synchronized(mFindRequest) { 3583 try { 3584 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.FIND_ALL, mFindRequest); 3585 while (mFindRequest.mMatchCount == -1) { 3586 mFindRequest.wait(); 3587 } 3588 } 3589 catch (InterruptedException e) { 3590 return 0; 3591 } 3592 return mFindRequest.mMatchCount; 3593 } 3594 } 3595 3596 /** 3597 * Start an ActionMode for finding text in this WebView. Only works if this 3598 * WebView is attached to the view system. 3599 * @param text If non-null, will be the initial text to search for. 3600 * Otherwise, the last String searched for in this WebView will 3601 * be used to start. 3602 * @param showIme If true, show the IME, assuming the user will begin typing. 3603 * If false and text is non-null, perform a find all. 3604 * @return boolean True if the find dialog is shown, false otherwise. 3605 */ 3606 public boolean showFindDialog(String text, boolean showIme) { 3607 FindActionModeCallback callback = new FindActionModeCallback(mContext); 3608 if (mWebView.getParent() == null || mWebView.startActionMode(callback) == null) { 3609 // Could not start the action mode, so end Find on page 3610 return false; 3611 } 3612 mCachedOverlappingActionModeHeight = -1; 3613 mFindCallback = callback; 3614 setFindIsUp(true); 3615 mFindCallback.setWebView(this); 3616 if (showIme) { 3617 mFindCallback.showSoftInput(); 3618 } else if (text != null) { 3619 mFindCallback.setText(text); 3620 mFindCallback.findAll(); 3621 return true; 3622 } 3623 if (text == null) { 3624 text = mFindRequest == null ? null : mFindRequest.mSearchText; 3625 } 3626 if (text != null) { 3627 mFindCallback.setText(text); 3628 mFindCallback.findAll(); 3629 } 3630 return true; 3631 } 3632 3633 /** 3634 * Keep track of the find callback so that we can remove its titlebar if 3635 * necessary. 3636 */ 3637 private FindActionModeCallback mFindCallback; 3638 3639 /** 3640 * Toggle whether the find dialog is showing, for both native and Java. 3641 */ 3642 private void setFindIsUp(boolean isUp) { 3643 mFindIsUp = isUp; 3644 } 3645 3646 // Used to know whether the find dialog is open. Affects whether 3647 // or not we draw the highlights for matches. 3648 private boolean mFindIsUp; 3649 3650 // Keep track of the last find request sent. 3651 private WebViewCore.FindAllRequest mFindRequest = null; 3652 3653 /** 3654 * Return the first substring consisting of the address of a physical 3655 * location. Currently, only addresses in the United States are detected, 3656 * and consist of: 3657 * - a house number 3658 * - a street name 3659 * - a street type (Road, Circle, etc), either spelled out or abbreviated 3660 * - a city name 3661 * - a state or territory, either spelled out or two-letter abbr. 3662 * - an optional 5 digit or 9 digit zip code. 3663 * 3664 * All names must be correctly capitalized, and the zip code, if present, 3665 * must be valid for the state. The street type must be a standard USPS 3666 * spelling or abbreviation. The state or territory must also be spelled 3667 * or abbreviated using USPS standards. The house number may not exceed 3668 * five digits. 3669 * @param addr The string to search for addresses. 3670 * 3671 * @return the address, or if no address is found, return null. 3672 */ 3673 public static String findAddress(String addr) { 3674 return findAddress(addr, false); 3675 } 3676 3677 /** 3678 * Return the first substring consisting of the address of a physical 3679 * location. Currently, only addresses in the United States are detected, 3680 * and consist of: 3681 * - a house number 3682 * - a street name 3683 * - a street type (Road, Circle, etc), either spelled out or abbreviated 3684 * - a city name 3685 * - a state or territory, either spelled out or two-letter abbr. 3686 * - an optional 5 digit or 9 digit zip code. 3687 * 3688 * Names are optionally capitalized, and the zip code, if present, 3689 * must be valid for the state. The street type must be a standard USPS 3690 * spelling or abbreviation. The state or territory must also be spelled 3691 * or abbreviated using USPS standards. The house number may not exceed 3692 * five digits. 3693 * @param addr The string to search for addresses. 3694 * @param caseInsensitive addr Set to true to make search ignore case. 3695 * 3696 * @return the address, or if no address is found, return null. 3697 */ 3698 public static String findAddress(String addr, boolean caseInsensitive) { 3699 return WebViewCore.nativeFindAddress(addr, caseInsensitive); 3700 } 3701 3702 /** 3703 * See {@link WebView#clearMatches()} 3704 */ 3705 @Override 3706 public void clearMatches() { 3707 if (mNativeClass == 0) 3708 return; 3709 mWebViewCore.removeMessages(EventHub.FIND_ALL); 3710 mWebViewCore.sendMessage(EventHub.FIND_ALL, null); 3711 } 3712 3713 3714 /** 3715 * Called when the find ActionMode ends. 3716 */ 3717 void notifyFindDialogDismissed() { 3718 mFindCallback = null; 3719 mCachedOverlappingActionModeHeight = -1; 3720 if (mWebViewCore == null) { 3721 return; 3722 } 3723 clearMatches(); 3724 setFindIsUp(false); 3725 // Now that the dialog has been removed, ensure that we scroll to a 3726 // location that is not beyond the end of the page. 3727 pinScrollTo(getScrollX(), getScrollY(), false, 0); 3728 invalidate(); 3729 } 3730 3731 /** 3732 * See {@link WebView#documentHasImages(Message)} 3733 */ 3734 @Override 3735 public void documentHasImages(Message response) { 3736 if (response == null) { 3737 return; 3738 } 3739 mWebViewCore.sendMessage(EventHub.DOC_HAS_IMAGES, response); 3740 } 3741 3742 /** 3743 * Request the scroller to abort any ongoing animation 3744 */ 3745 public void stopScroll() { 3746 mScroller.forceFinished(true); 3747 mLastVelocity = 0; 3748 } 3749 3750 @Override 3751 public void computeScroll() { 3752 if (mScroller.computeScrollOffset()) { 3753 int oldX = getScrollX(); 3754 int oldY = getScrollY(); 3755 int x = mScroller.getCurrX(); 3756 int y = mScroller.getCurrY(); 3757 invalidate(); // So we draw again 3758 3759 if (!mScroller.isFinished()) { 3760 int rangeX = computeMaxScrollX(); 3761 int rangeY = computeMaxScrollY(); 3762 int overflingDistance = mOverflingDistance; 3763 3764 // Use the layer's scroll data if needed. 3765 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3766 oldX = mScrollingLayerRect.left; 3767 oldY = mScrollingLayerRect.top; 3768 rangeX = mScrollingLayerRect.right; 3769 rangeY = mScrollingLayerRect.bottom; 3770 // No overscrolling for layers. 3771 overflingDistance = 0; 3772 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3773 oldX = getTextScrollX(); 3774 oldY = getTextScrollY(); 3775 rangeX = getMaxTextScrollX(); 3776 rangeY = getMaxTextScrollY(); 3777 overflingDistance = 0; 3778 } 3779 3780 mWebViewPrivate.overScrollBy(x - oldX, y - oldY, oldX, oldY, 3781 rangeX, rangeY, 3782 overflingDistance, overflingDistance, false); 3783 3784 if (mOverScrollGlow != null) { 3785 mOverScrollGlow.absorbGlow(x, y, oldX, oldY, rangeX, rangeY); 3786 } 3787 } else { 3788 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3789 // Update the layer position instead of WebView. 3790 scrollLayerTo(x, y); 3791 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3792 scrollEditText(x, y); 3793 } else { 3794 setScrollXRaw(x); 3795 setScrollYRaw(y); 3796 } 3797 abortAnimation(); 3798 nativeSetIsScrolling(false); 3799 if (!mBlockWebkitViewMessages) { 3800 WebViewCore.resumePriority(); 3801 if (!mSelectingText) { 3802 WebViewCore.resumeUpdatePicture(mWebViewCore); 3803 } 3804 } 3805 if (oldX != getScrollX() || oldY != getScrollY()) { 3806 sendOurVisibleRect(); 3807 } 3808 } 3809 } else { 3810 mWebViewPrivate.super_computeScroll(); 3811 } 3812 } 3813 3814 private void scrollLayerTo(int x, int y) { 3815 int dx = mScrollingLayerRect.left - x; 3816 int dy = mScrollingLayerRect.top - y; 3817 if ((dx == 0 && dy == 0) || mNativeClass == 0) { 3818 return; 3819 } 3820 if (mSelectingText) { 3821 if (mSelectCursorBaseLayerId == mCurrentScrollingLayerId) { 3822 mSelectCursorBase.offset(dx, dy); 3823 mSelectCursorBaseTextQuad.offset(dx, dy); 3824 } 3825 if (mSelectCursorExtentLayerId == mCurrentScrollingLayerId) { 3826 mSelectCursorExtent.offset(dx, dy); 3827 mSelectCursorExtentTextQuad.offset(dx, dy); 3828 } 3829 } else if (mHandleAlpha.getAlpha() > 0) { 3830 // stop fading as we're not going to move with the layer. 3831 mHandleAlphaAnimator.end(); 3832 } 3833 if (mAutoCompletePopup != null && 3834 mCurrentScrollingLayerId == mEditTextLayerId) { 3835 mEditTextContentBounds.offset(dx, dy); 3836 mAutoCompletePopup.resetRect(); 3837 } 3838 nativeScrollLayer(mNativeClass, mCurrentScrollingLayerId, x, y); 3839 mScrollingLayerRect.left = x; 3840 mScrollingLayerRect.top = y; 3841 mWebViewCore.sendMessage(WebViewCore.EventHub.SCROLL_LAYER, mCurrentScrollingLayerId, 3842 mScrollingLayerRect); 3843 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), getScrollX(), getScrollY()); 3844 invalidate(); 3845 } 3846 3847 private static int computeDuration(int dx, int dy) { 3848 int distance = Math.max(Math.abs(dx), Math.abs(dy)); 3849 int duration = distance * 1000 / STD_SPEED; 3850 return Math.min(duration, MAX_DURATION); 3851 } 3852 3853 // helper to pin the scrollBy parameters (already in view coordinates) 3854 // returns true if the scroll was changed 3855 private boolean pinScrollBy(int dx, int dy, boolean animate, int animationDuration) { 3856 return pinScrollTo(getScrollX() + dx, getScrollY() + dy, animate, animationDuration); 3857 } 3858 // helper to pin the scrollTo parameters (already in view coordinates) 3859 // returns true if the scroll was changed 3860 private boolean pinScrollTo(int x, int y, boolean animate, int animationDuration) { 3861 abortAnimation(); 3862 x = pinLocX(x); 3863 y = pinLocY(y); 3864 int dx = x - getScrollX(); 3865 int dy = y - getScrollY(); 3866 3867 if ((dx | dy) == 0) { 3868 return false; 3869 } 3870 if (animate) { 3871 // Log.d(LOGTAG, "startScroll: " + dx + " " + dy); 3872 mScroller.startScroll(getScrollX(), getScrollY(), dx, dy, 3873 animationDuration > 0 ? animationDuration : computeDuration(dx, dy)); 3874 invalidate(); 3875 } else { 3876 mWebView.scrollTo(x, y); 3877 } 3878 return true; 3879 } 3880 3881 // Scale from content to view coordinates, and pin. 3882 // Also called by jni webview.cpp 3883 private boolean setContentScrollBy(int cx, int cy, boolean animate) { 3884 if (mDrawHistory) { 3885 // disallow WebView to change the scroll position as History Picture 3886 // is used in the view system. 3887 // TODO: as we switchOutDrawHistory when trackball or navigation 3888 // keys are hit, this should be safe. Right? 3889 return false; 3890 } 3891 cx = contentToViewDimension(cx); 3892 cy = contentToViewDimension(cy); 3893 if (mHeightCanMeasure) { 3894 // move our visible rect according to scroll request 3895 if (cy != 0) { 3896 Rect tempRect = new Rect(); 3897 calcOurVisibleRect(tempRect); 3898 tempRect.offset(cx, cy); 3899 mWebView.requestRectangleOnScreen(tempRect); 3900 } 3901 // FIXME: We scroll horizontally no matter what because currently 3902 // ScrollView and ListView will not scroll horizontally. 3903 // FIXME: Why do we only scroll horizontally if there is no 3904 // vertical scroll? 3905// Log.d(LOGTAG, "setContentScrollBy cy=" + cy); 3906 return cy == 0 && cx != 0 && pinScrollBy(cx, 0, animate, 0); 3907 } else { 3908 return pinScrollBy(cx, cy, animate, 0); 3909 } 3910 } 3911 3912 /** 3913 * Called by CallbackProxy when the page starts loading. 3914 * @param url The URL of the page which has started loading. 3915 */ 3916 /* package */ void onPageStarted(String url) { 3917 // every time we start a new page, we want to reset the 3918 // WebView certificate: if the new site is secure, we 3919 // will reload it and get a new certificate set; 3920 // if the new site is not secure, the certificate must be 3921 // null, and that will be the case 3922 mWebView.setCertificate(null); 3923 3924 // reset the flag since we set to true in if need after 3925 // loading is see onPageFinished(Url) 3926 if (isAccessibilityEnabled()) { 3927 getAccessibilityInjector().onPageStarted(url); 3928 } 3929 3930 // Don't start out editing. 3931 mIsEditingText = false; 3932 } 3933 3934 /** 3935 * Called by CallbackProxy when the page finishes loading. 3936 * @param url The URL of the page which has finished loading. 3937 */ 3938 /* package */ void onPageFinished(String url) { 3939 mZoomManager.onPageFinished(url); 3940 3941 if (isAccessibilityEnabled()) { 3942 getAccessibilityInjector().onPageFinished(url); 3943 } 3944 } 3945 3946 // scale from content to view coordinates, and pin 3947 private void contentScrollTo(int cx, int cy, boolean animate) { 3948 if (mDrawHistory) { 3949 // disallow WebView to change the scroll position as History Picture 3950 // is used in the view system. 3951 return; 3952 } 3953 int vx = contentToViewX(cx); 3954 int vy = contentToViewY(cy); 3955 pinScrollTo(vx, vy, animate, 0); 3956 } 3957 3958 /** 3959 * These are from webkit, and are in content coordinate system (unzoomed) 3960 */ 3961 private void contentSizeChanged(boolean updateLayout) { 3962 // suppress 0,0 since we usually see real dimensions soon after 3963 // this avoids drawing the prev content in a funny place. If we find a 3964 // way to consolidate these notifications, this check may become 3965 // obsolete 3966 if ((mContentWidth | mContentHeight) == 0) { 3967 return; 3968 } 3969 3970 if (mHeightCanMeasure) { 3971 if (mWebView.getMeasuredHeight() != contentToViewDimension(mContentHeight) 3972 || updateLayout) { 3973 mWebView.requestLayout(); 3974 } 3975 } else if (mWidthCanMeasure) { 3976 if (mWebView.getMeasuredWidth() != contentToViewDimension(mContentWidth) 3977 || updateLayout) { 3978 mWebView.requestLayout(); 3979 } 3980 } else { 3981 // If we don't request a layout, try to send our view size to the 3982 // native side to ensure that WebCore has the correct dimensions. 3983 sendViewSizeZoom(false); 3984 } 3985 } 3986 3987 /** 3988 * See {@link WebView#setWebViewClient(WebViewClient)} 3989 */ 3990 @Override 3991 public void setWebViewClient(WebViewClient client) { 3992 mCallbackProxy.setWebViewClient(client); 3993 } 3994 3995 /** 3996 * Gets the WebViewClient 3997 * @return the current WebViewClient instance. 3998 * 3999 * This is an implementation detail. 4000 */ 4001 public WebViewClient getWebViewClient() { 4002 return mCallbackProxy.getWebViewClient(); 4003 } 4004 4005 /** 4006 * See {@link WebView#setDownloadListener(DownloadListener)} 4007 */ 4008 @Override 4009 public void setDownloadListener(DownloadListener listener) { 4010 mCallbackProxy.setDownloadListener(listener); 4011 } 4012 4013 /** 4014 * See {@link WebView#setWebChromeClient(WebChromeClient)} 4015 */ 4016 @Override 4017 public void setWebChromeClient(WebChromeClient client) { 4018 mCallbackProxy.setWebChromeClient(client); 4019 } 4020 4021 /** 4022 * Gets the chrome handler. 4023 * @return the current WebChromeClient instance. 4024 * 4025 * This is an implementation detail. 4026 */ 4027 public WebChromeClient getWebChromeClient() { 4028 return mCallbackProxy.getWebChromeClient(); 4029 } 4030 4031 /** 4032 * Set the back/forward list client. This is an implementation of 4033 * WebBackForwardListClient for handling new items and changes in the 4034 * history index. 4035 * @param client An implementation of WebBackForwardListClient. 4036 */ 4037 public void setWebBackForwardListClient(WebBackForwardListClient client) { 4038 mCallbackProxy.setWebBackForwardListClient(client); 4039 } 4040 4041 /** 4042 * Gets the WebBackForwardListClient. 4043 */ 4044 public WebBackForwardListClient getWebBackForwardListClient() { 4045 return mCallbackProxy.getWebBackForwardListClient(); 4046 } 4047 4048 /** 4049 * See {@link WebView#setPictureListener(PictureListener)} 4050 */ 4051 @Override 4052 @Deprecated 4053 public void setPictureListener(PictureListener listener) { 4054 mPictureListener = listener; 4055 } 4056 4057 /* FIXME: Debug only! Remove for SDK! */ 4058 public void externalRepresentation(Message callback) { 4059 mWebViewCore.sendMessage(EventHub.REQUEST_EXT_REPRESENTATION, callback); 4060 } 4061 4062 /* FIXME: Debug only! Remove for SDK! */ 4063 public void documentAsText(Message callback) { 4064 mWebViewCore.sendMessage(EventHub.REQUEST_DOC_AS_TEXT, callback); 4065 } 4066 4067 /** 4068 * See {@link WebView#addJavascriptInterface(Object, String)} 4069 */ 4070 @Override 4071 public void addJavascriptInterface(Object object, String name) { 4072 if (object == null) { 4073 return; 4074 } 4075 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 4076 arg.mObject = object; 4077 arg.mInterfaceName = name; 4078 mWebViewCore.sendMessage(EventHub.ADD_JS_INTERFACE, arg); 4079 } 4080 4081 /** 4082 * See {@link WebView#removeJavascriptInterface(String)} 4083 */ 4084 @Override 4085 public void removeJavascriptInterface(String interfaceName) { 4086 if (mWebViewCore != null) { 4087 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 4088 arg.mInterfaceName = interfaceName; 4089 mWebViewCore.sendMessage(EventHub.REMOVE_JS_INTERFACE, arg); 4090 } 4091 } 4092 4093 /** 4094 * See {@link WebView#getSettings()} 4095 * Note this returns WebSettingsClassic, a sub-class of WebSettings, which can be used 4096 * to access extension APIs. 4097 */ 4098 @Override 4099 public WebSettingsClassic getSettings() { 4100 return (mWebViewCore != null) ? mWebViewCore.getSettings() : null; 4101 } 4102 4103 /** 4104 * See {@link WebView#getPluginList()} 4105 */ 4106 @Deprecated 4107 public static synchronized PluginList getPluginList() { 4108 return new PluginList(); 4109 } 4110 4111 /** 4112 * See {@link WebView#refreshPlugins(boolean)} 4113 */ 4114 @Deprecated 4115 public void refreshPlugins(boolean reloadOpenPages) { 4116 } 4117 4118 //------------------------------------------------------------------------- 4119 // Override View methods 4120 //------------------------------------------------------------------------- 4121 4122 @Override 4123 protected void finalize() throws Throwable { 4124 try { 4125 destroy(); 4126 } finally { 4127 super.finalize(); 4128 } 4129 } 4130 4131 private void drawContent(Canvas canvas) { 4132 if (mDrawHistory) { 4133 canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); 4134 canvas.drawPicture(mHistoryPicture); 4135 return; 4136 } 4137 if (mNativeClass == 0) return; 4138 4139 boolean animateZoom = mZoomManager.isFixedLengthAnimationInProgress(); 4140 boolean animateScroll = ((!mScroller.isFinished() 4141 || mVelocityTracker != null) 4142 && (mTouchMode != TOUCH_DRAG_MODE || 4143 mHeldMotionless != MOTIONLESS_TRUE)); 4144 if (mTouchMode == TOUCH_DRAG_MODE) { 4145 if (mHeldMotionless == MOTIONLESS_PENDING) { 4146 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 4147 mHeldMotionless = MOTIONLESS_FALSE; 4148 } 4149 if (mHeldMotionless == MOTIONLESS_FALSE) { 4150 mPrivateHandler.sendMessageDelayed(mPrivateHandler 4151 .obtainMessage(DRAG_HELD_MOTIONLESS), MOTIONLESS_TIME); 4152 mHeldMotionless = MOTIONLESS_PENDING; 4153 } 4154 } 4155 int saveCount = canvas.save(); 4156 if (animateZoom) { 4157 mZoomManager.animateZoom(canvas); 4158 } else if (!canvas.isHardwareAccelerated()) { 4159 canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); 4160 } 4161 4162 boolean UIAnimationsRunning = false; 4163 // Currently for each draw we compute the animation values; 4164 // We may in the future decide to do that independently. 4165 if (mNativeClass != 0 && !canvas.isHardwareAccelerated() 4166 && nativeEvaluateLayersAnimations(mNativeClass)) { 4167 UIAnimationsRunning = true; 4168 // If we have unfinished (or unstarted) animations, 4169 // we ask for a repaint. We only need to do this in software 4170 // rendering (with hardware rendering we already have a different 4171 // method of requesting a repaint) 4172 mWebViewCore.sendMessage(EventHub.NOTIFY_ANIMATION_STARTED); 4173 invalidate(); 4174 } 4175 4176 // decide which adornments to draw 4177 int extras = DRAW_EXTRAS_NONE; 4178 if (!mFindIsUp && mShowTextSelectionExtra) { 4179 extras = DRAW_EXTRAS_SELECTION; 4180 } 4181 4182 calcOurContentVisibleRectF(mVisibleContentRect); 4183 if (canvas.isHardwareAccelerated()) { 4184 Rect invScreenRect = mIsWebViewVisible ? mInvScreenRect : null; 4185 Rect screenRect = mIsWebViewVisible ? mScreenRect : null; 4186 4187 int functor = nativeCreateDrawGLFunction(mNativeClass, invScreenRect, 4188 screenRect, mVisibleContentRect, getScale(), extras); 4189 ((HardwareCanvas) canvas).callDrawGLFunction(functor); 4190 if (mHardwareAccelSkia != getSettings().getHardwareAccelSkiaEnabled()) { 4191 mHardwareAccelSkia = getSettings().getHardwareAccelSkiaEnabled(); 4192 nativeUseHardwareAccelSkia(mHardwareAccelSkia); 4193 } 4194 4195 } else { 4196 DrawFilter df = null; 4197 if (mZoomManager.isZoomAnimating() || UIAnimationsRunning) { 4198 df = mZoomFilter; 4199 } else if (animateScroll) { 4200 df = mScrollFilter; 4201 } 4202 canvas.setDrawFilter(df); 4203 nativeDraw(canvas, mVisibleContentRect, mBackgroundColor, extras); 4204 canvas.setDrawFilter(null); 4205 } 4206 4207 canvas.restoreToCount(saveCount); 4208 drawTextSelectionHandles(canvas); 4209 4210 if (extras == DRAW_EXTRAS_CURSOR_RING) { 4211 if (mTouchMode == TOUCH_SHORTPRESS_START_MODE) { 4212 mTouchMode = TOUCH_SHORTPRESS_MODE; 4213 } 4214 } 4215 } 4216 4217 /** 4218 * Draw the background when beyond bounds 4219 * @param canvas Canvas to draw into 4220 */ 4221 private void drawOverScrollBackground(Canvas canvas) { 4222 if (mOverScrollBackground == null) { 4223 mOverScrollBackground = new Paint(); 4224 Bitmap bm = BitmapFactory.decodeResource( 4225 mContext.getResources(), 4226 com.android.internal.R.drawable.status_bar_background); 4227 mOverScrollBackground.setShader(new BitmapShader(bm, 4228 Shader.TileMode.REPEAT, Shader.TileMode.REPEAT)); 4229 mOverScrollBorder = new Paint(); 4230 mOverScrollBorder.setStyle(Paint.Style.STROKE); 4231 mOverScrollBorder.setStrokeWidth(0); 4232 mOverScrollBorder.setColor(0xffbbbbbb); 4233 } 4234 4235 int top = 0; 4236 int right = computeRealHorizontalScrollRange(); 4237 int bottom = top + computeRealVerticalScrollRange(); 4238 // first draw the background and anchor to the top of the view 4239 canvas.save(); 4240 canvas.translate(getScrollX(), getScrollY()); 4241 canvas.clipRect(-getScrollX(), top - getScrollY(), right - getScrollX(), bottom 4242 - getScrollY(), Region.Op.DIFFERENCE); 4243 canvas.drawPaint(mOverScrollBackground); 4244 canvas.restore(); 4245 // then draw the border 4246 canvas.drawRect(-1, top - 1, right, bottom, mOverScrollBorder); 4247 // next clip the region for the content 4248 canvas.clipRect(0, top, right, bottom); 4249 } 4250 4251 @Override 4252 public void onDraw(Canvas canvas) { 4253 if (inFullScreenMode()) { 4254 return; // no need to draw anything if we aren't visible. 4255 } 4256 // if mNativeClass is 0, the WebView is either destroyed or not 4257 // initialized. In either case, just draw the background color and return 4258 if (mNativeClass == 0) { 4259 canvas.drawColor(mBackgroundColor); 4260 return; 4261 } 4262 4263 // if both mContentWidth and mContentHeight are 0, it means there is no 4264 // valid Picture passed to WebView yet. This can happen when WebView 4265 // just starts. Draw the background and return. 4266 if ((mContentWidth | mContentHeight) == 0 && mHistoryPicture == null) { 4267 canvas.drawColor(mBackgroundColor); 4268 return; 4269 } 4270 4271 if (canvas.isHardwareAccelerated()) { 4272 mZoomManager.setHardwareAccelerated(); 4273 } else { 4274 mWebViewCore.resumeWebKitDraw(); 4275 } 4276 4277 int saveCount = canvas.save(); 4278 if (mInOverScrollMode && !getSettings() 4279 .getUseWebViewBackgroundForOverscrollBackground()) { 4280 drawOverScrollBackground(canvas); 4281 } 4282 4283 canvas.translate(0, getTitleHeight()); 4284 drawContent(canvas); 4285 canvas.restoreToCount(saveCount); 4286 4287 if (AUTO_REDRAW_HACK && mAutoRedraw) { 4288 invalidate(); 4289 } 4290 mWebViewCore.signalRepaintDone(); 4291 4292 if (mOverScrollGlow != null && mOverScrollGlow.drawEdgeGlows(canvas)) { 4293 invalidate(); 4294 } 4295 4296 if (mFocusTransition != null) { 4297 mFocusTransition.draw(canvas); 4298 } else if (shouldDrawHighlightRect()) { 4299 RegionIterator iter = new RegionIterator(mTouchHighlightRegion); 4300 Rect r = new Rect(); 4301 while (iter.next(r)) { 4302 canvas.drawRect(r, mTouchHightlightPaint); 4303 } 4304 } 4305 if (DEBUG_TOUCH_HIGHLIGHT) { 4306 if (getSettings().getNavDump()) { 4307 if ((mTouchHighlightX | mTouchHighlightY) != 0) { 4308 if (mTouchCrossHairColor == null) { 4309 mTouchCrossHairColor = new Paint(); 4310 mTouchCrossHairColor.setColor(Color.RED); 4311 } 4312 canvas.drawLine(mTouchHighlightX - mNavSlop, 4313 mTouchHighlightY - mNavSlop, mTouchHighlightX 4314 + mNavSlop + 1, mTouchHighlightY + mNavSlop 4315 + 1, mTouchCrossHairColor); 4316 canvas.drawLine(mTouchHighlightX + mNavSlop + 1, 4317 mTouchHighlightY - mNavSlop, mTouchHighlightX 4318 - mNavSlop, 4319 mTouchHighlightY + mNavSlop + 1, 4320 mTouchCrossHairColor); 4321 } 4322 } 4323 } 4324 } 4325 4326 private void removeTouchHighlight() { 4327 setTouchHighlightRects(null); 4328 } 4329 4330 @Override 4331 public void setLayoutParams(ViewGroup.LayoutParams params) { 4332 if (params.height == AbsoluteLayout.LayoutParams.WRAP_CONTENT) { 4333 mWrapContent = true; 4334 } 4335 mWebViewPrivate.super_setLayoutParams(params); 4336 } 4337 4338 @Override 4339 public boolean performLongClick() { 4340 // performLongClick() is the result of a delayed message. If we switch 4341 // to windows overview, the WebView will be temporarily removed from the 4342 // view system. In that case, do nothing. 4343 if (mWebView.getParent() == null) return false; 4344 4345 // A multi-finger gesture can look like a long press; make sure we don't take 4346 // long press actions if we're scaling. 4347 final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); 4348 if (detector != null && detector.isInProgress()) { 4349 return false; 4350 } 4351 4352 if (mSelectingText) return false; // long click does nothing on selection 4353 /* if long click brings up a context menu, the super function 4354 * returns true and we're done. Otherwise, nothing happened when 4355 * the user clicked. */ 4356 if (mWebViewPrivate.super_performLongClick()) { 4357 return true; 4358 } 4359 /* In the case where the application hasn't already handled the long 4360 * click action, look for a word under the click. If one is found, 4361 * animate the text selection into view. 4362 * FIXME: no animation code yet */ 4363 final boolean isSelecting = selectText(); 4364 if (isSelecting) { 4365 mWebView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 4366 } else if (focusCandidateIsEditableText()) { 4367 mSelectCallback = new SelectActionModeCallback(); 4368 mSelectCallback.setWebView(this); 4369 mSelectCallback.setTextSelected(false); 4370 mWebView.startActionMode(mSelectCallback); 4371 } 4372 return isSelecting; 4373 } 4374 4375 /** 4376 * Select the word at the last click point. 4377 * 4378 * This is an implementation detail. 4379 */ 4380 public boolean selectText() { 4381 int x = viewToContentX(mLastTouchX + getScrollX()); 4382 int y = viewToContentY(mLastTouchY + getScrollY()); 4383 return selectText(x, y); 4384 } 4385 4386 /** 4387 * Select the word at the indicated content coordinates. 4388 */ 4389 boolean selectText(int x, int y) { 4390 if (mWebViewCore == null) { 4391 return false; 4392 } 4393 mWebViewCore.sendMessage(EventHub.SELECT_WORD_AT, x, y); 4394 return true; 4395 } 4396 4397 private int mOrientation = Configuration.ORIENTATION_UNDEFINED; 4398 4399 @Override 4400 public void onConfigurationChanged(Configuration newConfig) { 4401 mCachedOverlappingActionModeHeight = -1; 4402 if (mSelectingText && mOrientation != newConfig.orientation) { 4403 selectionDone(); 4404 } 4405 mOrientation = newConfig.orientation; 4406 if (mWebViewCore != null && !mBlockWebkitViewMessages) { 4407 mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); 4408 } 4409 } 4410 4411 /** 4412 * Keep track of the Callback so we can end its ActionMode or remove its 4413 * titlebar. 4414 */ 4415 private SelectActionModeCallback mSelectCallback; 4416 4417 void setBaseLayer(int layer, boolean showVisualIndicator, 4418 boolean isPictureAfterFirstLayout) { 4419 if (mNativeClass == 0) 4420 return; 4421 boolean queueFull; 4422 final int scrollingLayer = (mTouchMode == TOUCH_DRAG_LAYER_MODE) 4423 ? mCurrentScrollingLayerId : 0; 4424 queueFull = nativeSetBaseLayer(mNativeClass, layer, 4425 showVisualIndicator, isPictureAfterFirstLayout, 4426 scrollingLayer); 4427 4428 if (queueFull) { 4429 mWebViewCore.pauseWebKitDraw(); 4430 } else { 4431 mWebViewCore.resumeWebKitDraw(); 4432 } 4433 4434 if (mHTML5VideoViewProxy != null) { 4435 mHTML5VideoViewProxy.setBaseLayer(layer); 4436 } 4437 } 4438 4439 int getBaseLayer() { 4440 if (mNativeClass == 0) { 4441 return 0; 4442 } 4443 return nativeGetBaseLayer(mNativeClass); 4444 } 4445 4446 private void onZoomAnimationStart() { 4447 if (!mSelectingText && mHandleAlpha.getAlpha() > 0) { 4448 mHandleAlphaAnimator.end(); 4449 } 4450 } 4451 4452 private void onZoomAnimationEnd() { 4453 mPrivateHandler.sendEmptyMessage(RELOCATE_AUTO_COMPLETE_POPUP); 4454 } 4455 4456 void onFixedLengthZoomAnimationStart() { 4457 WebViewCore.pauseUpdatePicture(getWebViewCore()); 4458 onZoomAnimationStart(); 4459 } 4460 4461 void onFixedLengthZoomAnimationEnd() { 4462 if (!mBlockWebkitViewMessages && !mSelectingText) { 4463 WebViewCore.resumeUpdatePicture(mWebViewCore); 4464 } 4465 onZoomAnimationEnd(); 4466 } 4467 4468 private static final int ZOOM_BITS = Paint.FILTER_BITMAP_FLAG | 4469 Paint.DITHER_FLAG | 4470 Paint.SUBPIXEL_TEXT_FLAG; 4471 private static final int SCROLL_BITS = Paint.FILTER_BITMAP_FLAG | 4472 Paint.DITHER_FLAG; 4473 4474 private final DrawFilter mZoomFilter = 4475 new PaintFlagsDrawFilter(ZOOM_BITS, Paint.LINEAR_TEXT_FLAG); 4476 // If we need to trade better quality for speed, set mScrollFilter to null 4477 private final DrawFilter mScrollFilter = 4478 new PaintFlagsDrawFilter(SCROLL_BITS, 0); 4479 4480 private class SelectionHandleAlpha { 4481 private int mAlpha = 0; 4482 public void setAlpha(int alpha) { 4483 mAlpha = alpha; 4484 if (mSelectHandleCenter != null) { 4485 mSelectHandleCenter.setAlpha(alpha); 4486 mSelectHandleLeft.setAlpha(alpha); 4487 mSelectHandleRight.setAlpha(alpha); 4488 // TODO: Use partial invalidate 4489 invalidate(); 4490 } 4491 } 4492 4493 public int getAlpha() { 4494 return mAlpha; 4495 } 4496 4497 } 4498 4499 private void startSelectingText() { 4500 mSelectingText = true; 4501 mShowTextSelectionExtra = true; 4502 mHandleAlphaAnimator.setIntValues(255); 4503 mHandleAlphaAnimator.start(); 4504 } 4505 private void endSelectingText() { 4506 mSelectingText = false; 4507 mShowTextSelectionExtra = false; 4508 mHandleAlphaAnimator.setIntValues(0); 4509 mHandleAlphaAnimator.start(); 4510 } 4511 4512 private void ensureSelectionHandles() { 4513 if (mSelectHandleCenter == null) { 4514 mSelectHandleCenter = mContext.getResources().getDrawable( 4515 com.android.internal.R.drawable.text_select_handle_middle); 4516 mSelectHandleLeft = mContext.getResources().getDrawable( 4517 com.android.internal.R.drawable.text_select_handle_left); 4518 mSelectHandleRight = mContext.getResources().getDrawable( 4519 com.android.internal.R.drawable.text_select_handle_right); 4520 mHandleAlpha.setAlpha(mHandleAlpha.getAlpha()); 4521 // All handles have the same height, so we can save effort with 4522 // this assumption. 4523 mSelectOffset = new Point(0, 4524 -mSelectHandleLeft.getIntrinsicHeight()); 4525 } 4526 } 4527 4528 private void drawHandle(Point point, int handleId, Rect bounds, 4529 Canvas canvas) { 4530 int offset; 4531 int width; 4532 int height; 4533 Drawable drawable; 4534 boolean isLeft = nativeIsHandleLeft(mNativeClass, handleId); 4535 if (isLeft) { 4536 drawable = mSelectHandleLeft; 4537 width = mSelectHandleLeft.getIntrinsicWidth(); 4538 height = mSelectHandleLeft.getIntrinsicHeight(); 4539 // Magic formula copied from TextView 4540 offset = (width * 3) / 4; 4541 } else { 4542 drawable = mSelectHandleRight; 4543 width = mSelectHandleRight.getIntrinsicWidth(); 4544 height = mSelectHandleRight.getIntrinsicHeight(); 4545 // Magic formula copied from TextView 4546 offset = width / 4; 4547 } 4548 int x = contentToViewDimension(point.x); 4549 int y = contentToViewDimension(point.y); 4550 bounds.set(x - offset, y, x - offset + width, y + height); 4551 drawable.setBounds(bounds); 4552 drawable.draw(canvas); 4553 } 4554 4555 private void drawTextSelectionHandles(Canvas canvas) { 4556 if (mHandleAlpha.getAlpha() == 0) { 4557 return; 4558 } 4559 ensureSelectionHandles(); 4560 if (mSelectingText) { 4561 if (mIsCaretSelection) { 4562 // Caret handle is centered 4563 int x = contentToViewDimension(mSelectCursorBase.x - 4564 (mSelectHandleCenter.getIntrinsicWidth() / 2)); 4565 int y = contentToViewDimension(mSelectCursorBase.y); 4566 mSelectHandleBaseBounds.set(x, y, 4567 x + mSelectHandleCenter.getIntrinsicWidth(), 4568 y + mSelectHandleCenter.getIntrinsicHeight()); 4569 mSelectHandleCenter.setBounds(mSelectHandleBaseBounds); 4570 mSelectHandleCenter.draw(canvas); 4571 } else { 4572 drawHandle(mSelectCursorBase, HANDLE_ID_BASE, 4573 mSelectHandleBaseBounds, canvas); 4574 drawHandle(mSelectCursorExtent, HANDLE_ID_EXTENT, 4575 mSelectHandleExtentBounds, canvas); 4576 } 4577 } 4578 } 4579 4580 /** 4581 * Takes an int[4] array as an output param with the values being 4582 * startX, startY, endX, endY 4583 */ 4584 private void getSelectionHandles(int[] handles) { 4585 handles[0] = mSelectCursorBase.x; 4586 handles[1] = mSelectCursorBase.y; 4587 handles[2] = mSelectCursorExtent.x; 4588 handles[3] = mSelectCursorExtent.y; 4589 } 4590 4591 // draw history 4592 private boolean mDrawHistory = false; 4593 private Picture mHistoryPicture = null; 4594 private int mHistoryWidth = 0; 4595 private int mHistoryHeight = 0; 4596 4597 // Only check the flag, can be called from WebCore thread 4598 boolean drawHistory() { 4599 return mDrawHistory; 4600 } 4601 4602 int getHistoryPictureWidth() { 4603 return (mHistoryPicture != null) ? mHistoryPicture.getWidth() : 0; 4604 } 4605 4606 // Should only be called in UI thread 4607 void switchOutDrawHistory() { 4608 if (null == mWebViewCore) return; // CallbackProxy may trigger this 4609 if (mDrawHistory && (getProgress() == 100 || nativeHasContent())) { 4610 mDrawHistory = false; 4611 mHistoryPicture = null; 4612 invalidate(); 4613 int oldScrollX = getScrollX(); 4614 int oldScrollY = getScrollY(); 4615 setScrollXRaw(pinLocX(getScrollX())); 4616 setScrollYRaw(pinLocY(getScrollY())); 4617 if (oldScrollX != getScrollX() || oldScrollY != getScrollY()) { 4618 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), oldScrollX, oldScrollY); 4619 } else { 4620 sendOurVisibleRect(); 4621 } 4622 } 4623 } 4624 4625 /** 4626 * Delete text from start to end in the focused textfield. If there is no 4627 * focus, or if start == end, silently fail. If start and end are out of 4628 * order, swap them. 4629 * @param start Beginning of selection to delete. 4630 * @param end End of selection to delete. 4631 */ 4632 /* package */ void deleteSelection(int start, int end) { 4633 mTextGeneration++; 4634 WebViewCore.TextSelectionData data 4635 = new WebViewCore.TextSelectionData(start, end, 0); 4636 mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, mTextGeneration, 0, 4637 data); 4638 } 4639 4640 /** 4641 * Set the selection to (start, end) in the focused textfield. If start and 4642 * end are out of order, swap them. 4643 * @param start Beginning of selection. 4644 * @param end End of selection. 4645 */ 4646 /* package */ void setSelection(int start, int end) { 4647 if (mWebViewCore != null) { 4648 mWebViewCore.sendMessage(EventHub.SET_SELECTION, start, end); 4649 } 4650 } 4651 4652 @Override 4653 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4654 if (mInputConnection == null) { 4655 mInputConnection = new WebViewInputConnection(); 4656 mAutoCompletePopup = new AutoCompletePopup(this, mInputConnection); 4657 } 4658 mInputConnection.setupEditorInfo(outAttrs); 4659 return mInputConnection; 4660 } 4661 4662 private void relocateAutoCompletePopup() { 4663 if (mAutoCompletePopup != null) { 4664 mAutoCompletePopup.resetRect(); 4665 mAutoCompletePopup.setText(mInputConnection.getEditable()); 4666 } 4667 } 4668 4669 /** 4670 * Called in response to a message from webkit telling us that the soft 4671 * keyboard should be launched. 4672 */ 4673 private void displaySoftKeyboard(boolean isTextView) { 4674 InputMethodManager imm = (InputMethodManager) 4675 mContext.getSystemService(Context.INPUT_METHOD_SERVICE); 4676 4677 // bring it back to the default level scale so that user can enter text 4678 boolean zoom = mZoomManager.getScale() < mZoomManager.getDefaultScale(); 4679 if (zoom) { 4680 mZoomManager.setZoomCenter(mLastTouchX, mLastTouchY); 4681 mZoomManager.setZoomScale(mZoomManager.getDefaultScale(), false); 4682 } 4683 // Used by plugins and contentEditable. 4684 // Also used if the navigation cache is out of date, and 4685 // does not recognize that a textfield is in focus. In that 4686 // case, use WebView as the targeted view. 4687 // see http://b/issue?id=2457459 4688 imm.showSoftInput(mWebView, 0); 4689 } 4690 4691 // Called by WebKit to instruct the UI to hide the keyboard 4692 private void hideSoftKeyboard() { 4693 InputMethodManager imm = InputMethodManager.peekInstance(); 4694 if (imm != null && (imm.isActive(mWebView))) { 4695 imm.hideSoftInputFromWindow(mWebView.getWindowToken(), 0); 4696 } 4697 } 4698 4699 /** 4700 * Called by AutoCompletePopup to find saved form data associated with the 4701 * textfield 4702 * @param name Name of the textfield. 4703 * @param nodePointer Pointer to the node of the textfield, so it can be 4704 * compared to the currently focused textfield when the data is 4705 * retrieved. 4706 * @param autoFillable true if WebKit has determined this field is part of 4707 * a form that can be auto filled. 4708 * @param autoComplete true if the attribute "autocomplete" is set to true 4709 * on the textfield. 4710 */ 4711 /* package */ void requestFormData(String name, int nodePointer, 4712 boolean autoFillable, boolean autoComplete) { 4713 if (mWebViewCore.getSettings().getSaveFormData()) { 4714 Message update = mPrivateHandler.obtainMessage(REQUEST_FORM_DATA); 4715 update.arg1 = nodePointer; 4716 RequestFormData updater = new RequestFormData(name, getUrl(), 4717 update, autoFillable, autoComplete); 4718 Thread t = new Thread(updater); 4719 t.start(); 4720 } 4721 } 4722 4723 /* 4724 * This class requests an Adapter for the AutoCompletePopup which shows past 4725 * entries stored in the database. It is a Runnable so that it can be done 4726 * in its own thread, without slowing down the UI. 4727 */ 4728 private class RequestFormData implements Runnable { 4729 private String mName; 4730 private String mUrl; 4731 private Message mUpdateMessage; 4732 private boolean mAutoFillable; 4733 private boolean mAutoComplete; 4734 private WebSettingsClassic mWebSettings; 4735 4736 public RequestFormData(String name, String url, Message msg, 4737 boolean autoFillable, boolean autoComplete) { 4738 mName = name; 4739 mUrl = WebTextView.urlForAutoCompleteData(url); 4740 mUpdateMessage = msg; 4741 mAutoFillable = autoFillable; 4742 mAutoComplete = autoComplete; 4743 mWebSettings = getSettings(); 4744 } 4745 4746 @Override 4747 public void run() { 4748 ArrayList<String> pastEntries = new ArrayList<String>(); 4749 4750 if (mAutoFillable) { 4751 // Note that code inside the adapter click handler in AutoCompletePopup depends 4752 // on the AutoFill item being at the top of the drop down list. If you change 4753 // the order, make sure to do it there too! 4754 if (mWebSettings != null && mWebSettings.getAutoFillProfile() != null) { 4755 pastEntries.add(mWebView.getResources().getText( 4756 com.android.internal.R.string.autofill_this_form).toString() + 4757 " " + 4758 mAutoFillData.getPreviewString()); 4759 mAutoCompletePopup.setIsAutoFillProfileSet(true); 4760 } else { 4761 // There is no autofill profile set up yet, so add an option that 4762 // will invite the user to set their profile up. 4763 pastEntries.add(mWebView.getResources().getText( 4764 com.android.internal.R.string.setup_autofill).toString()); 4765 mAutoCompletePopup.setIsAutoFillProfileSet(false); 4766 } 4767 } 4768 4769 if (mAutoComplete) { 4770 pastEntries.addAll(mDatabase.getFormData(mUrl, mName)); 4771 } 4772 4773 if (pastEntries.size() > 0) { 4774 ArrayAdapter<String> adapter = new ArrayAdapter<String>( 4775 mContext, 4776 com.android.internal.R.layout.web_text_view_dropdown, 4777 pastEntries); 4778 mUpdateMessage.obj = adapter; 4779 mUpdateMessage.sendToTarget(); 4780 } 4781 } 4782 } 4783 4784 /** 4785 * Dump the display tree to "/sdcard/displayTree.txt" 4786 * 4787 * debug only 4788 */ 4789 public void dumpDisplayTree() { 4790 nativeDumpDisplayTree(getUrl()); 4791 } 4792 4793 /** 4794 * Dump the dom tree to adb shell if "toFile" is False, otherwise dump it to 4795 * "/sdcard/domTree.txt" 4796 * 4797 * debug only 4798 */ 4799 public void dumpDomTree(boolean toFile) { 4800 mWebViewCore.sendMessage(EventHub.DUMP_DOMTREE, toFile ? 1 : 0, 0); 4801 } 4802 4803 /** 4804 * Dump the render tree to adb shell if "toFile" is False, otherwise dump it 4805 * to "/sdcard/renderTree.txt" 4806 * 4807 * debug only 4808 */ 4809 public void dumpRenderTree(boolean toFile) { 4810 mWebViewCore.sendMessage(EventHub.DUMP_RENDERTREE, toFile ? 1 : 0, 0); 4811 } 4812 4813 /** 4814 * Called by DRT on UI thread, need to proxy to WebCore thread. 4815 * 4816 * debug only 4817 */ 4818 public void setUseMockDeviceOrientation() { 4819 mWebViewCore.sendMessage(EventHub.SET_USE_MOCK_DEVICE_ORIENTATION); 4820 } 4821 4822 /** 4823 * Sets use of the Geolocation mock client. Also resets that client. Called 4824 * by DRT on UI thread, need to proxy to WebCore thread. 4825 * 4826 * debug only 4827 */ 4828 public void setUseMockGeolocation() { 4829 mWebViewCore.sendMessage(EventHub.SET_USE_MOCK_GEOLOCATION); 4830 } 4831 4832 /** 4833 * Called by DRT on WebCore thread. 4834 * 4835 * debug only 4836 */ 4837 public void setMockGeolocationPosition(double latitude, double longitude, double accuracy) { 4838 mWebViewCore.setMockGeolocationPosition(latitude, longitude, accuracy); 4839 } 4840 4841 /** 4842 * Called by DRT on WebCore thread. 4843 * 4844 * debug only 4845 */ 4846 public void setMockGeolocationError(int code, String message) { 4847 mWebViewCore.setMockGeolocationError(code, message); 4848 } 4849 4850 /** 4851 * Called by DRT on WebCore thread. 4852 * 4853 * debug only 4854 */ 4855 public void setMockGeolocationPermission(boolean allow) { 4856 mWebViewCore.setMockGeolocationPermission(allow); 4857 } 4858 4859 /** 4860 * Called by DRT on WebCore thread. 4861 * 4862 * debug only 4863 */ 4864 public void setMockDeviceOrientation(boolean canProvideAlpha, double alpha, 4865 boolean canProvideBeta, double beta, boolean canProvideGamma, double gamma) { 4866 mWebViewCore.setMockDeviceOrientation(canProvideAlpha, alpha, canProvideBeta, beta, 4867 canProvideGamma, gamma); 4868 } 4869 4870 // This is used to determine long press with the center key. Does not 4871 // affect long press with the trackball/touch. 4872 private boolean mGotCenterDown = false; 4873 4874 @Override 4875 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4876 if (mBlockWebkitViewMessages) { 4877 return false; 4878 } 4879 // send complex characters to webkit for use by JS and plugins 4880 if (keyCode == KeyEvent.KEYCODE_UNKNOWN && event.getCharacters() != null) { 4881 // pass the key to DOM 4882 sendBatchableInputMessage(EventHub.KEY_DOWN, 0, 0, event); 4883 sendBatchableInputMessage(EventHub.KEY_UP, 0, 0, event); 4884 // return true as DOM handles the key 4885 return true; 4886 } 4887 return false; 4888 } 4889 4890 private boolean isEnterActionKey(int keyCode) { 4891 return keyCode == KeyEvent.KEYCODE_DPAD_CENTER 4892 || keyCode == KeyEvent.KEYCODE_ENTER 4893 || keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER; 4894 } 4895 4896 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 4897 if (mAutoCompletePopup != null) { 4898 return mAutoCompletePopup.onKeyPreIme(keyCode, event); 4899 } 4900 return false; 4901 } 4902 4903 @Override 4904 public boolean onKeyDown(int keyCode, KeyEvent event) { 4905 if (DebugFlags.WEB_VIEW) { 4906 Log.v(LOGTAG, "keyDown at " + System.currentTimeMillis() 4907 + "keyCode=" + keyCode 4908 + ", " + event + ", unicode=" + event.getUnicodeChar()); 4909 } 4910 if (mIsCaretSelection) { 4911 selectionDone(); 4912 } 4913 if (mBlockWebkitViewMessages) { 4914 return false; 4915 } 4916 4917 // don't implement accelerator keys here; defer to host application 4918 if (event.isCtrlPressed()) { 4919 return false; 4920 } 4921 4922 if (mNativeClass == 0) { 4923 return false; 4924 } 4925 4926 // do this hack up front, so it always works, regardless of touch-mode 4927 if (AUTO_REDRAW_HACK && (keyCode == KeyEvent.KEYCODE_CALL)) { 4928 mAutoRedraw = !mAutoRedraw; 4929 if (mAutoRedraw) { 4930 invalidate(); 4931 } 4932 return true; 4933 } 4934 4935 // Bubble up the key event if 4936 // 1. it is a system key; or 4937 // 2. the host application wants to handle it; 4938 if (event.isSystem() 4939 || mCallbackProxy.uiOverrideKeyEvent(event)) { 4940 return false; 4941 } 4942 4943 // See if the accessibility injector needs to handle this event. 4944 if (isAccessibilityEnabled() 4945 && getAccessibilityInjector().handleKeyEventIfNecessary(event)) { 4946 return true; 4947 } 4948 4949 if (keyCode == KeyEvent.KEYCODE_PAGE_UP) { 4950 if (event.hasNoModifiers()) { 4951 pageUp(false); 4952 return true; 4953 } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) { 4954 pageUp(true); 4955 return true; 4956 } 4957 } 4958 4959 if (keyCode == KeyEvent.KEYCODE_PAGE_DOWN) { 4960 if (event.hasNoModifiers()) { 4961 pageDown(false); 4962 return true; 4963 } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) { 4964 pageDown(true); 4965 return true; 4966 } 4967 } 4968 4969 if (keyCode == KeyEvent.KEYCODE_MOVE_HOME && event.hasNoModifiers()) { 4970 pageUp(true); 4971 return true; 4972 } 4973 4974 if (keyCode == KeyEvent.KEYCODE_MOVE_END && event.hasNoModifiers()) { 4975 pageDown(true); 4976 return true; 4977 } 4978 4979 if (keyCode >= KeyEvent.KEYCODE_DPAD_UP 4980 && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { 4981 switchOutDrawHistory(); 4982 } 4983 4984 if (isEnterActionKey(keyCode)) { 4985 switchOutDrawHistory(); 4986 if (event.getRepeatCount() == 0) { 4987 if (mSelectingText) { 4988 return true; // discard press if copy in progress 4989 } 4990 mGotCenterDown = true; 4991 mPrivateHandler.sendMessageDelayed(mPrivateHandler 4992 .obtainMessage(LONG_PRESS_CENTER), LONG_PRESS_TIMEOUT); 4993 } 4994 } 4995 4996 if (getSettings().getNavDump()) { 4997 switch (keyCode) { 4998 case KeyEvent.KEYCODE_4: 4999 dumpDisplayTree(); 5000 break; 5001 case KeyEvent.KEYCODE_5: 5002 case KeyEvent.KEYCODE_6: 5003 dumpDomTree(keyCode == KeyEvent.KEYCODE_5); 5004 break; 5005 case KeyEvent.KEYCODE_7: 5006 case KeyEvent.KEYCODE_8: 5007 dumpRenderTree(keyCode == KeyEvent.KEYCODE_7); 5008 break; 5009 } 5010 } 5011 5012 // pass the key to DOM 5013 sendKeyEvent(event); 5014 // return true as DOM handles the key 5015 return true; 5016 } 5017 5018 @Override 5019 public boolean onKeyUp(int keyCode, KeyEvent event) { 5020 if (DebugFlags.WEB_VIEW) { 5021 Log.v(LOGTAG, "keyUp at " + System.currentTimeMillis() 5022 + ", " + event + ", unicode=" + event.getUnicodeChar()); 5023 } 5024 if (mBlockWebkitViewMessages) { 5025 return false; 5026 } 5027 5028 if (mNativeClass == 0) { 5029 return false; 5030 } 5031 5032 // special CALL handling when cursor node's href is "tel:XXX" 5033 if (keyCode == KeyEvent.KEYCODE_CALL 5034 && mInitialHitTestResult != null 5035 && mInitialHitTestResult.getType() == HitTestResult.PHONE_TYPE) { 5036 String text = mInitialHitTestResult.getExtra(); 5037 Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse(text)); 5038 mContext.startActivity(intent); 5039 return true; 5040 } 5041 5042 // Bubble up the key event if 5043 // 1. it is a system key; or 5044 // 2. the host application wants to handle it; 5045 if (event.isSystem() 5046 || mCallbackProxy.uiOverrideKeyEvent(event)) { 5047 return false; 5048 } 5049 5050 // See if the accessibility injector needs to handle this event. 5051 if (isAccessibilityEnabled() 5052 && getAccessibilityInjector().handleKeyEventIfNecessary(event)) { 5053 return true; 5054 } 5055 5056 if (isEnterActionKey(keyCode)) { 5057 // remove the long press message first 5058 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 5059 mGotCenterDown = false; 5060 5061 if (mSelectingText) { 5062 copySelection(); 5063 selectionDone(); 5064 return true; // discard press if copy in progress 5065 } 5066 } 5067 5068 // pass the key to DOM 5069 sendKeyEvent(event); 5070 // return true as DOM handles the key 5071 return true; 5072 } 5073 5074 private boolean startSelectActionMode() { 5075 mSelectCallback = new SelectActionModeCallback(); 5076 mSelectCallback.setTextSelected(!mIsCaretSelection); 5077 mSelectCallback.setWebView(this); 5078 if (mWebView.startActionMode(mSelectCallback) == null) { 5079 // There is no ActionMode, so do not allow the user to modify a 5080 // selection. 5081 selectionDone(); 5082 return false; 5083 } 5084 mWebView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 5085 return true; 5086 } 5087 5088 private void showPasteWindow() { 5089 ClipboardManager cm = (ClipboardManager)(mContext 5090 .getSystemService(Context.CLIPBOARD_SERVICE)); 5091 if (cm.hasPrimaryClip()) { 5092 Point cursorPoint = new Point(contentToViewX(mSelectCursorBase.x), 5093 contentToViewY(mSelectCursorBase.y)); 5094 Point cursorTop = calculateCaretTop(); 5095 cursorTop.set(contentToViewX(cursorTop.x), 5096 contentToViewY(cursorTop.y)); 5097 5098 int[] location = new int[2]; 5099 mWebView.getLocationInWindow(location); 5100 int offsetX = location[0] - getScrollX(); 5101 int offsetY = location[1] - getScrollY(); 5102 cursorPoint.offset(offsetX, offsetY); 5103 cursorTop.offset(offsetX, offsetY); 5104 if (mPasteWindow == null) { 5105 mPasteWindow = new PastePopupWindow(); 5106 } 5107 mPasteWindow.show(cursorPoint, cursorTop, location[0], location[1]); 5108 } 5109 } 5110 5111 /** 5112 * Given segment AB, this finds the point C along AB that is closest to 5113 * point and then returns it scale along AB. The scale factor is AC/AB. 5114 * 5115 * @param x The x coordinate of the point near segment AB that determines 5116 * the scale factor. 5117 * @param y The y coordinate of the point near segment AB that determines 5118 * the scale factor. 5119 * @param a The first point of the line segment. 5120 * @param b The second point of the line segment. 5121 * @return The scale factor AC/AB, where C is the point on AB closest to 5122 * point. 5123 */ 5124 private static float scaleAlongSegment(int x, int y, PointF a, PointF b) { 5125 // The bottom line of the text box is line AB 5126 float abX = b.x - a.x; 5127 float abY = b.y - a.y; 5128 float ab2 = (abX * abX) + (abY * abY); 5129 5130 // The line from first point in text bounds to bottom is AP 5131 float apX = x - a.x; 5132 float apY = y - a.y; 5133 float abDotAP = (apX * abX) + (apY * abY); 5134 float scale = abDotAP / ab2; 5135 return scale; 5136 } 5137 5138 /** 5139 * Assuming arbitrary shape of a quadralateral forming text bounds, this 5140 * calculates the top of a caret. 5141 */ 5142 private Point calculateCaretTop() { 5143 float scale = scaleAlongSegment(mSelectCursorBase.x, mSelectCursorBase.y, 5144 mSelectCursorBaseTextQuad.p4, mSelectCursorBaseTextQuad.p3); 5145 int x = Math.round(scaleCoordinate(scale, 5146 mSelectCursorBaseTextQuad.p1.x, mSelectCursorBaseTextQuad.p2.x)); 5147 int y = Math.round(scaleCoordinate(scale, 5148 mSelectCursorBaseTextQuad.p1.y, mSelectCursorBaseTextQuad.p2.y)); 5149 return new Point(x, y); 5150 } 5151 5152 private void hidePasteButton() { 5153 if (mPasteWindow != null) { 5154 mPasteWindow.hide(); 5155 } 5156 } 5157 5158 private void syncSelectionCursors() { 5159 mSelectCursorBaseLayerId = 5160 nativeGetHandleLayerId(mNativeClass, HANDLE_ID_BASE, 5161 mSelectCursorBase, mSelectCursorBaseTextQuad); 5162 mSelectCursorExtentLayerId = 5163 nativeGetHandleLayerId(mNativeClass, HANDLE_ID_EXTENT, 5164 mSelectCursorExtent, mSelectCursorExtentTextQuad); 5165 } 5166 5167 private boolean setupWebkitSelect() { 5168 syncSelectionCursors(); 5169 if (!mIsCaretSelection && !startSelectActionMode()) { 5170 selectionDone(); 5171 return false; 5172 } 5173 startSelectingText(); 5174 mTouchMode = TOUCH_DRAG_MODE; 5175 return true; 5176 } 5177 5178 private void updateWebkitSelection() { 5179 int handleId = (mSelectDraggingCursor == mSelectCursorBase) 5180 ? HANDLE_ID_BASE : HANDLE_ID_EXTENT; 5181 mWebViewCore.removeMessages(EventHub.SELECT_TEXT); 5182 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SELECT_TEXT, 5183 mSelectDraggingCursor.x, mSelectDraggingCursor.y, (Integer)handleId); 5184 } 5185 5186 private void resetCaretTimer() { 5187 mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE); 5188 if (!mSelectionStarted) { 5189 mPrivateHandler.sendEmptyMessageDelayed(CLEAR_CARET_HANDLE, 5190 CARET_HANDLE_STAMINA_MS); 5191 } 5192 } 5193 5194 /** 5195 * See {@link WebView#emulateShiftHeld()} 5196 */ 5197 @Override 5198 @Deprecated 5199 public void emulateShiftHeld() { 5200 } 5201 5202 /** 5203 * Select all of the text in this WebView. 5204 * 5205 * This is an implementation detail. 5206 */ 5207 public void selectAll() { 5208 mWebViewCore.sendMessage(EventHub.SELECT_ALL); 5209 } 5210 5211 /** 5212 * Called when the selection has been removed. 5213 */ 5214 void selectionDone() { 5215 if (mSelectingText) { 5216 hidePasteButton(); 5217 endSelectingText(); 5218 // finish is idempotent, so this is fine even if selectionDone was 5219 // called by mSelectCallback.onDestroyActionMode 5220 if (mSelectCallback != null) { 5221 mSelectCallback.finish(); 5222 mSelectCallback = null; 5223 } 5224 invalidate(); // redraw without selection 5225 mAutoScrollX = 0; 5226 mAutoScrollY = 0; 5227 mSentAutoScrollMessage = false; 5228 } 5229 } 5230 5231 /** 5232 * Copy the selection to the clipboard 5233 * 5234 * This is an implementation detail. 5235 */ 5236 public boolean copySelection() { 5237 boolean copiedSomething = false; 5238 String selection = getSelection(); 5239 if (selection != null && selection != "") { 5240 if (DebugFlags.WEB_VIEW) { 5241 Log.v(LOGTAG, "copySelection \"" + selection + "\""); 5242 } 5243 Toast.makeText(mContext 5244 , com.android.internal.R.string.text_copied 5245 , Toast.LENGTH_SHORT).show(); 5246 copiedSomething = true; 5247 ClipboardManager cm = (ClipboardManager)mContext 5248 .getSystemService(Context.CLIPBOARD_SERVICE); 5249 cm.setText(selection); 5250 int[] handles = new int[4]; 5251 getSelectionHandles(handles); 5252 mWebViewCore.sendMessage(EventHub.COPY_TEXT, handles); 5253 } 5254 invalidate(); // remove selection region and pointer 5255 return copiedSomething; 5256 } 5257 5258 /** 5259 * Cut the selected text into the clipboard 5260 * 5261 * This is an implementation detail 5262 */ 5263 public void cutSelection() { 5264 copySelection(); 5265 int[] handles = new int[4]; 5266 getSelectionHandles(handles); 5267 mWebViewCore.sendMessage(EventHub.DELETE_TEXT, handles); 5268 } 5269 5270 /** 5271 * Paste text from the clipboard to the cursor position. 5272 * 5273 * This is an implementation detail 5274 */ 5275 public void pasteFromClipboard() { 5276 ClipboardManager cm = (ClipboardManager)mContext 5277 .getSystemService(Context.CLIPBOARD_SERVICE); 5278 ClipData clipData = cm.getPrimaryClip(); 5279 if (clipData != null) { 5280 ClipData.Item clipItem = clipData.getItemAt(0); 5281 CharSequence pasteText = clipItem.getText(); 5282 if (mInputConnection != null) { 5283 mInputConnection.replaceSelection(pasteText); 5284 } 5285 } 5286 } 5287 5288 /** 5289 * This is an implementation detail. 5290 */ 5291 public SearchBox getSearchBox() { 5292 if ((mWebViewCore == null) || (mWebViewCore.getBrowserFrame() == null)) { 5293 return null; 5294 } 5295 return mWebViewCore.getBrowserFrame().getSearchBox(); 5296 } 5297 5298 /** 5299 * Returns the currently highlighted text as a string. 5300 */ 5301 String getSelection() { 5302 if (mNativeClass == 0) return ""; 5303 return nativeGetSelection(); 5304 } 5305 5306 @Override 5307 public void onAttachedToWindow() { 5308 if (mWebView.hasWindowFocus()) setActive(true); 5309 5310 if (isAccessibilityEnabled()) { 5311 getAccessibilityInjector().addAccessibilityApisIfNecessary(); 5312 } 5313 5314 updateHwAccelerated(); 5315 } 5316 5317 @Override 5318 public void onDetachedFromWindow() { 5319 clearHelpers(); 5320 mZoomManager.dismissZoomPicker(); 5321 if (mWebView.hasWindowFocus()) setActive(false); 5322 5323 if (isAccessibilityEnabled()) { 5324 getAccessibilityInjector().removeAccessibilityApisIfNecessary(); 5325 } else { 5326 // Ensure the injector is cleared if we're detaching from the window 5327 // and accessibility is disabled. 5328 mAccessibilityInjector = null; 5329 } 5330 5331 updateHwAccelerated(); 5332 5333 ensureFunctorDetached(); 5334 } 5335 5336 @Override 5337 public void onVisibilityChanged(View changedView, int visibility) { 5338 // The zoomManager may be null if the webview is created from XML that 5339 // specifies the view's visibility param as not visible (see http://b/2794841) 5340 if (visibility != View.VISIBLE && mZoomManager != null) { 5341 mZoomManager.dismissZoomPicker(); 5342 } 5343 updateDrawingState(); 5344 } 5345 5346 void setActive(boolean active) { 5347 if (active) { 5348 if (mWebView.hasFocus()) { 5349 // If our window regained focus, and we have focus, then begin 5350 // drawing the cursor ring 5351 mDrawCursorRing = true; 5352 setFocusControllerActive(true); 5353 } else { 5354 mDrawCursorRing = false; 5355 setFocusControllerActive(false); 5356 } 5357 } else { 5358 if (!mZoomManager.isZoomPickerVisible()) { 5359 /* 5360 * The external zoom controls come in their own window, so our 5361 * window loses focus. Our policy is to not draw the cursor ring 5362 * if our window is not focused, but this is an exception since 5363 * the user can still navigate the web page with the zoom 5364 * controls showing. 5365 */ 5366 mDrawCursorRing = false; 5367 } 5368 mKeysPressed.clear(); 5369 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5370 mTouchMode = TOUCH_DONE_MODE; 5371 setFocusControllerActive(false); 5372 } 5373 invalidate(); 5374 } 5375 5376 // To avoid drawing the cursor ring, and remove the TextView when our window 5377 // loses focus. 5378 @Override 5379 public void onWindowFocusChanged(boolean hasWindowFocus) { 5380 setActive(hasWindowFocus); 5381 if (hasWindowFocus) { 5382 JWebCoreJavaBridge.setActiveWebView(this); 5383 if (mPictureUpdatePausedForFocusChange) { 5384 WebViewCore.resumeUpdatePicture(mWebViewCore); 5385 mPictureUpdatePausedForFocusChange = false; 5386 } 5387 } else { 5388 JWebCoreJavaBridge.removeActiveWebView(this); 5389 final WebSettings settings = getSettings(); 5390 if (settings != null && settings.enableSmoothTransition() && 5391 mWebViewCore != null && !WebViewCore.isUpdatePicturePaused(mWebViewCore)) { 5392 WebViewCore.pauseUpdatePicture(mWebViewCore); 5393 mPictureUpdatePausedForFocusChange = true; 5394 } 5395 } 5396 } 5397 5398 /* 5399 * Pass a message to WebCore Thread, telling the WebCore::Page's 5400 * FocusController to be "inactive" so that it will 5401 * not draw the blinking cursor. It gets set to "active" to draw the cursor 5402 * in WebViewCore.cpp, when the WebCore thread receives key events/clicks. 5403 */ 5404 /* package */ void setFocusControllerActive(boolean active) { 5405 if (mWebViewCore == null) return; 5406 mWebViewCore.sendMessage(EventHub.SET_ACTIVE, active ? 1 : 0, 0); 5407 // Need to send this message after the document regains focus. 5408 if (active && mListBoxMessage != null) { 5409 mWebViewCore.sendMessage(mListBoxMessage); 5410 mListBoxMessage = null; 5411 } 5412 } 5413 5414 @Override 5415 public void onFocusChanged(boolean focused, int direction, 5416 Rect previouslyFocusedRect) { 5417 if (DebugFlags.WEB_VIEW) { 5418 Log.v(LOGTAG, "MT focusChanged " + focused + ", " + direction); 5419 } 5420 if (focused) { 5421 mDrawCursorRing = true; 5422 setFocusControllerActive(true); 5423 } else { 5424 mDrawCursorRing = false; 5425 setFocusControllerActive(false); 5426 mKeysPressed.clear(); 5427 } 5428 if (!mTouchHighlightRegion.isEmpty()) { 5429 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 5430 } 5431 } 5432 5433 // updateRectsForGL() happens almost every draw call, in order to avoid creating 5434 // any object in this code path, we move the local variable out to be a private 5435 // final member, and we marked them as mTemp*. 5436 private final Point mTempVisibleRectOffset = new Point(); 5437 private final Rect mTempVisibleRect = new Rect(); 5438 5439 void updateRectsForGL() { 5440 // Use the getGlobalVisibleRect() to get the intersection among the parents 5441 // visible == false means we're clipped - send a null rect down to indicate that 5442 // we should not draw 5443 boolean visible = mWebView.getGlobalVisibleRect(mTempVisibleRect, mTempVisibleRectOffset); 5444 mInvScreenRect.set(mTempVisibleRect); 5445 if (visible) { 5446 // Then need to invert the Y axis, just for GL 5447 View rootView = mWebView.getRootView(); 5448 int rootViewHeight = rootView.getHeight(); 5449 mScreenRect.set(mInvScreenRect); 5450 int savedWebViewBottom = mInvScreenRect.bottom; 5451 mInvScreenRect.bottom = rootViewHeight - mInvScreenRect.top - getVisibleTitleHeightImpl(); 5452 mInvScreenRect.top = rootViewHeight - savedWebViewBottom; 5453 mIsWebViewVisible = true; 5454 } else { 5455 mIsWebViewVisible = false; 5456 } 5457 5458 mTempVisibleRect.offset(-mTempVisibleRectOffset.x, -mTempVisibleRectOffset.y); 5459 viewToContentVisibleRect(mVisibleContentRect, mTempVisibleRect); 5460 5461 nativeUpdateDrawGLFunction(mNativeClass, mIsWebViewVisible ? mInvScreenRect : null, 5462 mIsWebViewVisible ? mScreenRect : null, 5463 mVisibleContentRect, getScale()); 5464 } 5465 5466 // Input : viewRect, rect in view/screen coordinate. 5467 // Output: contentRect, rect in content/document coordinate. 5468 private void viewToContentVisibleRect(RectF contentRect, Rect viewRect) { 5469 contentRect.left = viewToContentXf(viewRect.left) / mWebView.getScaleX(); 5470 // viewToContentY will remove the total height of the title bar. Add 5471 // the visible height back in to account for the fact that if the title 5472 // bar is partially visible, the part of the visible rect which is 5473 // displaying our content is displaced by that amount. 5474 contentRect.top = viewToContentYf(viewRect.top + getVisibleTitleHeightImpl()) 5475 / mWebView.getScaleY(); 5476 contentRect.right = viewToContentXf(viewRect.right) / mWebView.getScaleX(); 5477 contentRect.bottom = viewToContentYf(viewRect.bottom) / mWebView.getScaleY(); 5478 } 5479 5480 @Override 5481 public boolean setFrame(int left, int top, int right, int bottom) { 5482 boolean changed = mWebViewPrivate.super_setFrame(left, top, right, bottom); 5483 if (!changed && mHeightCanMeasure) { 5484 // When mHeightCanMeasure is true, we will set mLastHeightSent to 0 5485 // in WebViewCore after we get the first layout. We do call 5486 // requestLayout() when we get contentSizeChanged(). But the View 5487 // system won't call onSizeChanged if the dimension is not changed. 5488 // In this case, we need to call sendViewSizeZoom() explicitly to 5489 // notify the WebKit about the new dimensions. 5490 sendViewSizeZoom(false); 5491 } 5492 updateRectsForGL(); 5493 return changed; 5494 } 5495 5496 @Override 5497 public void onSizeChanged(int w, int h, int ow, int oh) { 5498 // adjust the max viewport width depending on the view dimensions. This 5499 // is to ensure the scaling is not going insane. So do not shrink it if 5500 // the view size is temporarily smaller, e.g. when soft keyboard is up. 5501 int newMaxViewportWidth = (int) (Math.max(w, h) / mZoomManager.getDefaultMinZoomScale()); 5502 if (newMaxViewportWidth > sMaxViewportWidth) { 5503 sMaxViewportWidth = newMaxViewportWidth; 5504 } 5505 5506 mZoomManager.onSizeChanged(w, h, ow, oh); 5507 5508 if (mLoadedPicture != null && mDelaySetPicture == null) { 5509 // Size changes normally result in a new picture 5510 // Re-set the loaded picture to simulate that 5511 // However, do not update the base layer as that hasn't changed 5512 setNewPicture(mLoadedPicture, false); 5513 } 5514 if (mIsEditingText) { 5515 scrollEditIntoView(); 5516 } 5517 relocateAutoCompletePopup(); 5518 } 5519 5520 /** 5521 * Scrolls the edit field into view using the minimum scrolling necessary. 5522 * If the edit field is too large to fit in the visible window, the caret 5523 * dimensions are used so that at least the caret is visible. 5524 * A buffer of EDIT_RECT_BUFFER in view pixels is used to offset the 5525 * edit rectangle to ensure a margin with the edge of the screen. 5526 */ 5527 private void scrollEditIntoView() { 5528 Rect visibleRect = new Rect(viewToContentX(getScrollX()), 5529 viewToContentY(getScrollY()), 5530 viewToContentX(getScrollX() + getWidth()), 5531 viewToContentY(getScrollY() + getViewHeightWithTitle())); 5532 if (visibleRect.contains(mEditTextContentBounds)) { 5533 return; // no need to scroll 5534 } 5535 syncSelectionCursors(); 5536 nativeFindMaxVisibleRect(mNativeClass, mEditTextLayerId, visibleRect); 5537 final int buffer = Math.max(1, viewToContentDimension(EDIT_RECT_BUFFER)); 5538 Rect showRect = new Rect( 5539 Math.max(0, mEditTextContentBounds.left - buffer), 5540 Math.max(0, mEditTextContentBounds.top - buffer), 5541 mEditTextContentBounds.right + buffer, 5542 mEditTextContentBounds.bottom + buffer); 5543 Point caretTop = calculateCaretTop(); 5544 if (visibleRect.width() < mEditTextContentBounds.width()) { 5545 // The whole edit won't fit in the width, so use the caret rect 5546 if (mSelectCursorBase.x < caretTop.x) { 5547 showRect.left = Math.max(0, mSelectCursorBase.x - buffer); 5548 showRect.right = caretTop.x + buffer; 5549 } else { 5550 showRect.left = Math.max(0, caretTop.x - buffer); 5551 showRect.right = mSelectCursorBase.x + buffer; 5552 } 5553 } 5554 if (visibleRect.height() < mEditTextContentBounds.height()) { 5555 // The whole edit won't fit in the height, so use the caret rect 5556 if (mSelectCursorBase.y > caretTop.y) { 5557 showRect.top = Math.max(0, caretTop.y - buffer); 5558 showRect.bottom = mSelectCursorBase.y + buffer; 5559 } else { 5560 showRect.top = Math.max(0, mSelectCursorBase.y - buffer); 5561 showRect.bottom = caretTop.y + buffer; 5562 } 5563 } 5564 5565 if (visibleRect.contains(showRect)) { 5566 return; // no need to scroll 5567 } 5568 5569 int scrollX = viewToContentX(getScrollX()); 5570 if (visibleRect.left > showRect.left) { 5571 // We are scrolled too far 5572 scrollX += showRect.left - visibleRect.left; 5573 } else if (visibleRect.right < showRect.right) { 5574 // We aren't scrolled enough to include the right 5575 scrollX += showRect.right - visibleRect.right; 5576 } 5577 int scrollY = viewToContentY(getScrollY()); 5578 if (visibleRect.top > showRect.top) { 5579 scrollY += showRect.top - visibleRect.top; 5580 } else if (visibleRect.bottom < showRect.bottom) { 5581 scrollY += showRect.bottom - visibleRect.bottom; 5582 } 5583 5584 contentScrollTo(scrollX, scrollY, false); 5585 } 5586 5587 @Override 5588 public void onScrollChanged(int l, int t, int oldl, int oldt) { 5589 if (!mInOverScrollMode) { 5590 sendOurVisibleRect(); 5591 // update WebKit if visible title bar height changed. The logic is same 5592 // as getVisibleTitleHeightImpl. 5593 int titleHeight = getTitleHeight(); 5594 if (Math.max(titleHeight - t, 0) != Math.max(titleHeight - oldt, 0)) { 5595 sendViewSizeZoom(false); 5596 } 5597 } 5598 } 5599 5600 @Override 5601 public boolean dispatchKeyEvent(KeyEvent event) { 5602 switch (event.getAction()) { 5603 case KeyEvent.ACTION_DOWN: 5604 mKeysPressed.add(Integer.valueOf(event.getKeyCode())); 5605 break; 5606 case KeyEvent.ACTION_MULTIPLE: 5607 // Always accept the action. 5608 break; 5609 case KeyEvent.ACTION_UP: 5610 int location = mKeysPressed.indexOf(Integer.valueOf(event.getKeyCode())); 5611 if (location == -1) { 5612 // We did not receive the key down for this key, so do not 5613 // handle the key up. 5614 return false; 5615 } else { 5616 // We did receive the key down. Handle the key up, and 5617 // remove it from our pressed keys. 5618 mKeysPressed.remove(location); 5619 } 5620 break; 5621 default: 5622 // Accept the action. This should not happen, unless a new 5623 // action is added to KeyEvent. 5624 break; 5625 } 5626 return mWebViewPrivate.super_dispatchKeyEvent(event); 5627 } 5628 5629 /* 5630 * Here is the snap align logic: 5631 * 1. If it starts nearly horizontally or vertically, snap align; 5632 * 2. If there is a dramitic direction change, let it go; 5633 * 5634 * Adjustable parameters. Angle is the radians on a unit circle, limited 5635 * to quadrant 1. Values range from 0f (horizontal) to PI/2 (vertical) 5636 */ 5637 private static final float HSLOPE_TO_START_SNAP = .25f; 5638 private static final float HSLOPE_TO_BREAK_SNAP = .4f; 5639 private static final float VSLOPE_TO_START_SNAP = 1.25f; 5640 private static final float VSLOPE_TO_BREAK_SNAP = .95f; 5641 /* 5642 * These values are used to influence the average angle when entering 5643 * snap mode. If is is the first movement entering snap, we set the average 5644 * to the appropriate ideal. If the user is entering into snap after the 5645 * first movement, then we average the average angle with these values. 5646 */ 5647 private static final float ANGLE_VERT = 2f; 5648 private static final float ANGLE_HORIZ = 0f; 5649 /* 5650 * The modified moving average weight. 5651 * Formula: MAV[t]=MAV[t-1] + (P[t]-MAV[t-1])/n 5652 */ 5653 private static final float MMA_WEIGHT_N = 5; 5654 5655 private boolean inFullScreenMode() { 5656 return mFullScreenHolder != null; 5657 } 5658 5659 private void dismissFullScreenMode() { 5660 if (inFullScreenMode()) { 5661 mFullScreenHolder.hide(); 5662 mFullScreenHolder = null; 5663 invalidate(); 5664 } 5665 } 5666 5667 void onPinchToZoomAnimationStart() { 5668 // cancel the single touch handling 5669 cancelTouch(); 5670 onZoomAnimationStart(); 5671 } 5672 5673 void onPinchToZoomAnimationEnd(ScaleGestureDetector detector) { 5674 onZoomAnimationEnd(); 5675 // start a drag, TOUCH_PINCH_DRAG, can't use TOUCH_INIT_MODE as 5676 // it may trigger the unwanted click, can't use TOUCH_DRAG_MODE 5677 // as it may trigger the unwanted fling. 5678 mTouchMode = TOUCH_PINCH_DRAG; 5679 mConfirmMove = true; 5680 startTouch(detector.getFocusX(), detector.getFocusY(), mLastTouchTime); 5681 } 5682 5683 // See if there is a layer at x, y and switch to TOUCH_DRAG_LAYER_MODE if a 5684 // layer is found. 5685 private void startScrollingLayer(float x, float y) { 5686 if (mNativeClass == 0) 5687 return; 5688 5689 int contentX = viewToContentX((int) x + getScrollX()); 5690 int contentY = viewToContentY((int) y + getScrollY()); 5691 mCurrentScrollingLayerId = nativeScrollableLayer(mNativeClass, 5692 contentX, contentY, mScrollingLayerRect, mScrollingLayerBounds); 5693 if (mCurrentScrollingLayerId != 0) { 5694 mTouchMode = TOUCH_DRAG_LAYER_MODE; 5695 } 5696 } 5697 5698 // 1/(density * density) used to compute the distance between points. 5699 // Computed in init(). 5700 private float DRAG_LAYER_INVERSE_DENSITY_SQUARED; 5701 5702 // The distance between two points reported in onTouchEvent scaled by the 5703 // density of the screen. 5704 private static final int DRAG_LAYER_FINGER_DISTANCE = 20000; 5705 5706 @Override 5707 public boolean onHoverEvent(MotionEvent event) { 5708 if (mNativeClass == 0) { 5709 return false; 5710 } 5711 int x = viewToContentX((int) event.getX() + getScrollX()); 5712 int y = viewToContentY((int) event.getY() + getScrollY()); 5713 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, x, y); 5714 return true; 5715 } 5716 5717 @Override 5718 public boolean onTouchEvent(MotionEvent ev) { 5719 if (mNativeClass == 0 || (!mWebView.isClickable() && !mWebView.isLongClickable())) { 5720 return false; 5721 } 5722 5723 if (mInputDispatcher == null) { 5724 return false; 5725 } 5726 5727 if (mWebView.isFocusable() && mWebView.isFocusableInTouchMode() 5728 && !mWebView.isFocused()) { 5729 mWebView.requestFocus(); 5730 } 5731 5732 if (mInputDispatcher.postPointerEvent(ev, getScrollX(), 5733 getScrollY() - getTitleHeight(), mZoomManager.getInvScale())) { 5734 mInputDispatcher.dispatchUiEvents(); 5735 return true; 5736 } else { 5737 Log.w(LOGTAG, "mInputDispatcher rejected the event!"); 5738 return false; 5739 } 5740 } 5741 5742 private float calculateDragAngle(int dx, int dy) { 5743 dx = Math.abs(dx); 5744 dy = Math.abs(dy); 5745 return (float) Math.atan2(dy, dx); 5746 } 5747 5748 /* 5749 * Common code for single touch and multi-touch. 5750 * (x, y) denotes current focus point, which is the touch point for single touch 5751 * and the middle point for multi-touch. 5752 */ 5753 private void handleTouchEventCommon(MotionEvent event, int action, int x, int y) { 5754 ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); 5755 5756 long eventTime = event.getEventTime(); 5757 5758 // Due to the touch screen edge effect, a touch closer to the edge 5759 // always snapped to the edge. As getViewWidth() can be different from 5760 // getWidth() due to the scrollbar, adjusting the point to match 5761 // getViewWidth(). Same applied to the height. 5762 x = Math.min(x, getViewWidth() - 1); 5763 y = Math.min(y, getViewHeightWithTitle() - 1); 5764 5765 int deltaX = mLastTouchX - x; 5766 int deltaY = mLastTouchY - y; 5767 int contentX = viewToContentX(x + getScrollX()); 5768 int contentY = viewToContentY(y + getScrollY()); 5769 5770 switch (action) { 5771 case MotionEvent.ACTION_DOWN: { 5772 mConfirmMove = false; 5773 if (!mEditTextScroller.isFinished()) { 5774 mEditTextScroller.abortAnimation(); 5775 } 5776 if (!mScroller.isFinished()) { 5777 // stop the current scroll animation, but if this is 5778 // the start of a fling, allow it to add to the current 5779 // fling's velocity 5780 mScroller.abortAnimation(); 5781 mTouchMode = TOUCH_DRAG_START_MODE; 5782 mConfirmMove = true; 5783 nativeSetIsScrolling(false); 5784 } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) { 5785 mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP); 5786 removeTouchHighlight(); 5787 if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) { 5788 mTouchMode = TOUCH_DOUBLE_TAP_MODE; 5789 } else { 5790 mTouchMode = TOUCH_INIT_MODE; 5791 } 5792 } else { // the normal case 5793 mTouchMode = TOUCH_INIT_MODE; 5794 if (mLogEvent && eventTime - mLastTouchUpTime < 1000) { 5795 EventLog.writeEvent(EventLogTags.BROWSER_DOUBLE_TAP_DURATION, 5796 (eventTime - mLastTouchUpTime), eventTime); 5797 } 5798 mSelectionStarted = false; 5799 if (mSelectingText) { 5800 ensureSelectionHandles(); 5801 int shiftedY = y - getTitleHeight() + getScrollY(); 5802 int shiftedX = x + getScrollX(); 5803 if (mSelectHandleBaseBounds.contains(shiftedX, shiftedY)) { 5804 mSelectionStarted = true; 5805 mSelectDraggingCursor = mSelectCursorBase; 5806 mSelectDraggingTextQuad = mSelectCursorBaseTextQuad; 5807 if (mIsCaretSelection) { 5808 mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE); 5809 hidePasteButton(); 5810 } 5811 } else if (mSelectHandleExtentBounds 5812 .contains(shiftedX, shiftedY)) { 5813 mSelectionStarted = true; 5814 mSelectDraggingCursor = mSelectCursorExtent; 5815 mSelectDraggingTextQuad = mSelectCursorExtentTextQuad; 5816 } else if (mIsCaretSelection) { 5817 selectionDone(); 5818 } 5819 if (DebugFlags.WEB_VIEW) { 5820 Log.v(LOGTAG, "select=" + contentX + "," + contentY); 5821 } 5822 } 5823 } 5824 // Trigger the link 5825 if (!mSelectingText && (mTouchMode == TOUCH_INIT_MODE 5826 || mTouchMode == TOUCH_DOUBLE_TAP_MODE)) { 5827 mPrivateHandler.sendEmptyMessageDelayed( 5828 SWITCH_TO_SHORTPRESS, TAP_TIMEOUT); 5829 mPrivateHandler.sendEmptyMessageDelayed( 5830 SWITCH_TO_LONGPRESS, LONG_PRESS_TIMEOUT); 5831 } 5832 startTouch(x, y, eventTime); 5833 if (mIsEditingText) { 5834 mTouchInEditText = mEditTextContentBounds 5835 .contains(contentX, contentY); 5836 } 5837 break; 5838 } 5839 case MotionEvent.ACTION_MOVE: { 5840 if (!mConfirmMove && (deltaX * deltaX + deltaY * deltaY) 5841 >= mTouchSlopSquare) { 5842 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 5843 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5844 mConfirmMove = true; 5845 if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 5846 mTouchMode = TOUCH_INIT_MODE; 5847 } 5848 removeTouchHighlight(); 5849 } 5850 if (mSelectingText && mSelectionStarted) { 5851 if (DebugFlags.WEB_VIEW) { 5852 Log.v(LOGTAG, "extend=" + contentX + "," + contentY); 5853 } 5854 ViewParent parent = mWebView.getParent(); 5855 if (parent != null) { 5856 parent.requestDisallowInterceptTouchEvent(true); 5857 } 5858 if (deltaX != 0 || deltaY != 0) { 5859 int handleX = contentX + 5860 viewToContentDimension(mSelectOffset.x); 5861 int handleY = contentY + 5862 viewToContentDimension(mSelectOffset.y); 5863 mSelectDraggingCursor.set(handleX, handleY); 5864 boolean inCursorText = 5865 mSelectDraggingTextQuad.containsPoint(handleX, handleY); 5866 boolean inEditBounds = mEditTextContentBounds 5867 .contains(handleX, handleY); 5868 if (mIsEditingText && !inEditBounds) { 5869 beginScrollEdit(); 5870 } else { 5871 endScrollEdit(); 5872 } 5873 if (inCursorText || (mIsEditingText && !inEditBounds)) { 5874 snapDraggingCursor(); 5875 } 5876 updateWebkitSelection(); 5877 if (!inCursorText && mIsEditingText && inEditBounds) { 5878 // Visually snap even if we have moved the handle. 5879 snapDraggingCursor(); 5880 } 5881 mLastTouchX = x; 5882 mLastTouchY = y; 5883 invalidate(); 5884 } 5885 break; 5886 } 5887 5888 if (mTouchMode == TOUCH_DONE_MODE) { 5889 // no dragging during scroll zoom animation, or when prevent 5890 // default is yes 5891 break; 5892 } 5893 if (mVelocityTracker == null) { 5894 Log.e(LOGTAG, "Got null mVelocityTracker when " 5895 + " mTouchMode = " + mTouchMode); 5896 } else { 5897 mVelocityTracker.addMovement(event); 5898 } 5899 5900 if (mTouchMode != TOUCH_DRAG_MODE && 5901 mTouchMode != TOUCH_DRAG_LAYER_MODE && 5902 mTouchMode != TOUCH_DRAG_TEXT_MODE) { 5903 5904 if (!mConfirmMove) { 5905 break; 5906 } 5907 5908 // Only lock dragging to one axis if we don't have a scale in progress. 5909 // Scaling implies free-roaming movement. Note this is only ever a question 5910 // if mZoomManager.supportsPanDuringZoom() is true. 5911 mAverageAngle = calculateDragAngle(deltaX, deltaY); 5912 if (detector == null || !detector.isInProgress()) { 5913 // if it starts nearly horizontal or vertical, enforce it 5914 if (mAverageAngle < HSLOPE_TO_START_SNAP) { 5915 mSnapScrollMode = SNAP_X; 5916 mSnapPositive = deltaX > 0; 5917 mAverageAngle = ANGLE_HORIZ; 5918 } else if (mAverageAngle > VSLOPE_TO_START_SNAP) { 5919 mSnapScrollMode = SNAP_Y; 5920 mSnapPositive = deltaY > 0; 5921 mAverageAngle = ANGLE_VERT; 5922 } 5923 } 5924 5925 mTouchMode = TOUCH_DRAG_MODE; 5926 mLastTouchX = x; 5927 mLastTouchY = y; 5928 deltaX = 0; 5929 deltaY = 0; 5930 5931 startScrollingLayer(x, y); 5932 startDrag(); 5933 } 5934 5935 // do pan 5936 boolean keepScrollBarsVisible = false; 5937 if (deltaX == 0 && deltaY == 0) { 5938 keepScrollBarsVisible = true; 5939 } else { 5940 mAverageAngle += 5941 (calculateDragAngle(deltaX, deltaY) - mAverageAngle) 5942 / MMA_WEIGHT_N; 5943 if (mSnapScrollMode != SNAP_NONE) { 5944 if (mSnapScrollMode == SNAP_Y) { 5945 // radical change means getting out of snap mode 5946 if (mAverageAngle < VSLOPE_TO_BREAK_SNAP) { 5947 mSnapScrollMode = SNAP_NONE; 5948 } 5949 } 5950 if (mSnapScrollMode == SNAP_X) { 5951 // radical change means getting out of snap mode 5952 if (mAverageAngle > HSLOPE_TO_BREAK_SNAP) { 5953 mSnapScrollMode = SNAP_NONE; 5954 } 5955 } 5956 } else { 5957 if (mAverageAngle < HSLOPE_TO_START_SNAP) { 5958 mSnapScrollMode = SNAP_X; 5959 mSnapPositive = deltaX > 0; 5960 mAverageAngle = (mAverageAngle + ANGLE_HORIZ) / 2; 5961 } else if (mAverageAngle > VSLOPE_TO_START_SNAP) { 5962 mSnapScrollMode = SNAP_Y; 5963 mSnapPositive = deltaY > 0; 5964 mAverageAngle = (mAverageAngle + ANGLE_VERT) / 2; 5965 } 5966 } 5967 if (mSnapScrollMode != SNAP_NONE) { 5968 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 5969 deltaY = 0; 5970 } else { 5971 deltaX = 0; 5972 } 5973 } 5974 if (deltaX * deltaX + deltaY * deltaY > mTouchSlopSquare) { 5975 mHeldMotionless = MOTIONLESS_FALSE; 5976 } else { 5977 mHeldMotionless = MOTIONLESS_TRUE; 5978 keepScrollBarsVisible = true; 5979 } 5980 5981 mLastTouchTime = eventTime; 5982 boolean allDrag = doDrag(deltaX, deltaY); 5983 if (allDrag) { 5984 mLastTouchX = x; 5985 mLastTouchY = y; 5986 } else { 5987 int contentDeltaX = (int)Math.floor(deltaX * mZoomManager.getInvScale()); 5988 int roundedDeltaX = contentToViewDimension(contentDeltaX); 5989 int contentDeltaY = (int)Math.floor(deltaY * mZoomManager.getInvScale()); 5990 int roundedDeltaY = contentToViewDimension(contentDeltaY); 5991 mLastTouchX -= roundedDeltaX; 5992 mLastTouchY -= roundedDeltaY; 5993 } 5994 } 5995 5996 break; 5997 } 5998 case MotionEvent.ACTION_UP: { 5999 endScrollEdit(); 6000 if (!mConfirmMove && mIsEditingText && mSelectionStarted && 6001 mIsCaretSelection) { 6002 showPasteWindow(); 6003 stopTouch(); 6004 break; 6005 } 6006 mLastTouchUpTime = eventTime; 6007 if (mSentAutoScrollMessage) { 6008 mAutoScrollX = mAutoScrollY = 0; 6009 } 6010 switch (mTouchMode) { 6011 case TOUCH_DOUBLE_TAP_MODE: // double tap 6012 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6013 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6014 mTouchMode = TOUCH_DONE_MODE; 6015 break; 6016 case TOUCH_INIT_MODE: // tap 6017 case TOUCH_SHORTPRESS_START_MODE: 6018 case TOUCH_SHORTPRESS_MODE: 6019 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6020 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6021 if (!mConfirmMove) { 6022 if (mSelectingText) { 6023 // tapping on selection or controls does nothing 6024 if (!mSelectionStarted) { 6025 selectionDone(); 6026 } 6027 break; 6028 } 6029 // only trigger double tap if the WebView is 6030 // scalable 6031 if (mTouchMode == TOUCH_INIT_MODE 6032 && (canZoomIn() || canZoomOut())) { 6033 mPrivateHandler.sendEmptyMessageDelayed( 6034 RELEASE_SINGLE_TAP, ViewConfiguration 6035 .getDoubleTapTimeout()); 6036 } 6037 break; 6038 } 6039 case TOUCH_DRAG_MODE: 6040 case TOUCH_DRAG_LAYER_MODE: 6041 case TOUCH_DRAG_TEXT_MODE: 6042 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 6043 // if the user waits a while w/o moving before the 6044 // up, we don't want to do a fling 6045 if (eventTime - mLastTouchTime <= MIN_FLING_TIME) { 6046 if (mVelocityTracker == null) { 6047 Log.e(LOGTAG, "Got null mVelocityTracker"); 6048 } else { 6049 mVelocityTracker.addMovement(event); 6050 } 6051 // set to MOTIONLESS_IGNORE so that it won't keep 6052 // removing and sending message in 6053 // drawCoreAndCursorRing() 6054 mHeldMotionless = MOTIONLESS_IGNORE; 6055 doFling(); 6056 break; 6057 } else { 6058 if (mScroller.springBack(getScrollX(), getScrollY(), 0, 6059 computeMaxScrollX(), 0, 6060 computeMaxScrollY())) { 6061 invalidate(); 6062 } 6063 } 6064 // redraw in high-quality, as we're done dragging 6065 mHeldMotionless = MOTIONLESS_TRUE; 6066 invalidate(); 6067 // fall through 6068 case TOUCH_DRAG_START_MODE: 6069 // TOUCH_DRAG_START_MODE should not happen for the real 6070 // device as we almost certain will get a MOVE. But this 6071 // is possible on emulator. 6072 mLastVelocity = 0; 6073 WebViewCore.resumePriority(); 6074 if (!mSelectingText) { 6075 WebViewCore.resumeUpdatePicture(mWebViewCore); 6076 } 6077 break; 6078 } 6079 stopTouch(); 6080 break; 6081 } 6082 case MotionEvent.ACTION_CANCEL: { 6083 if (mTouchMode == TOUCH_DRAG_MODE) { 6084 mScroller.springBack(getScrollX(), getScrollY(), 0, 6085 computeMaxScrollX(), 0, computeMaxScrollY()); 6086 invalidate(); 6087 } 6088 cancelTouch(); 6089 break; 6090 } 6091 } 6092 } 6093 6094 /** 6095 * Returns the text scroll speed in content pixels per millisecond based on 6096 * the touch location. 6097 * @param coordinate The x or y touch coordinate in content space 6098 * @param min The minimum coordinate (x or y) of the edit content bounds 6099 * @param max The maximum coordinate (x or y) of the edit content bounds 6100 */ 6101 private static float getTextScrollSpeed(int coordinate, int min, int max) { 6102 if (coordinate < min) { 6103 return (coordinate - min) * TEXT_SCROLL_RATE; 6104 } else if (coordinate >= max) { 6105 return (coordinate - max + 1) * TEXT_SCROLL_RATE; 6106 } else { 6107 return 0.0f; 6108 } 6109 } 6110 6111 private static int getSelectionCoordinate(int coordinate, int min, int max) { 6112 return Math.max(Math.min(coordinate, max), min); 6113 } 6114 6115 private void beginScrollEdit() { 6116 if (mLastEditScroll == 0) { 6117 mLastEditScroll = SystemClock.uptimeMillis() - 6118 TEXT_SCROLL_FIRST_SCROLL_MS; 6119 scrollEditWithCursor(); 6120 } 6121 } 6122 6123 private void endScrollEdit() { 6124 mLastEditScroll = 0; 6125 } 6126 6127 private static int getTextScrollDelta(float speed, long deltaT) { 6128 float distance = speed * deltaT; 6129 int intDistance = (int)Math.floor(distance); 6130 float probability = distance - intDistance; 6131 if (Math.random() < probability) { 6132 intDistance++; 6133 } 6134 return intDistance; 6135 } 6136 /** 6137 * Scrolls edit text a distance based on the last touch point, 6138 * the last scroll time, and the edit text content bounds. 6139 */ 6140 private void scrollEditWithCursor() { 6141 if (mLastEditScroll != 0) { 6142 int x = viewToContentX(mLastTouchX + getScrollX() + mSelectOffset.x); 6143 float scrollSpeedX = getTextScrollSpeed(x, mEditTextContentBounds.left, 6144 mEditTextContentBounds.right); 6145 int y = viewToContentY(mLastTouchY + getScrollY() + mSelectOffset.y); 6146 float scrollSpeedY = getTextScrollSpeed(y, mEditTextContentBounds.top, 6147 mEditTextContentBounds.bottom); 6148 if (scrollSpeedX == 0.0f && scrollSpeedY == 0.0f) { 6149 endScrollEdit(); 6150 } else { 6151 long currentTime = SystemClock.uptimeMillis(); 6152 long timeSinceLastUpdate = currentTime - mLastEditScroll; 6153 int deltaX = getTextScrollDelta(scrollSpeedX, timeSinceLastUpdate); 6154 int deltaY = getTextScrollDelta(scrollSpeedY, timeSinceLastUpdate); 6155 int scrollX = getTextScrollX() + deltaX; 6156 scrollX = Math.min(getMaxTextScrollX(), scrollX); 6157 scrollX = Math.max(0, scrollX); 6158 int scrollY = getTextScrollY() + deltaY; 6159 scrollY = Math.min(getMaxTextScrollY(), scrollY); 6160 scrollY = Math.max(0, scrollY); 6161 6162 mLastEditScroll = currentTime; 6163 if (scrollX == getTextScrollX() && scrollY == getTextScrollY()) { 6164 // By probability no text scroll this time. Try again later. 6165 mPrivateHandler.sendEmptyMessageDelayed(SCROLL_EDIT_TEXT, 6166 TEXT_SCROLL_FIRST_SCROLL_MS); 6167 } else { 6168 scrollEditText(scrollX, scrollY); 6169 int selectionX = getSelectionCoordinate(x, 6170 mEditTextContentBounds.left, mEditTextContentBounds.right); 6171 int selectionY = getSelectionCoordinate(y, 6172 mEditTextContentBounds.top, mEditTextContentBounds.bottom); 6173 int oldX = mSelectDraggingCursor.x; 6174 int oldY = mSelectDraggingCursor.y; 6175 mSelectDraggingCursor.set(selectionX, selectionY); 6176 updateWebkitSelection(); 6177 mSelectDraggingCursor.set(oldX, oldY); 6178 } 6179 } 6180 } 6181 } 6182 6183 private void startTouch(float x, float y, long eventTime) { 6184 // Remember where the motion event started 6185 mStartTouchX = mLastTouchX = Math.round(x); 6186 mStartTouchY = mLastTouchY = Math.round(y); 6187 mLastTouchTime = eventTime; 6188 mVelocityTracker = VelocityTracker.obtain(); 6189 mSnapScrollMode = SNAP_NONE; 6190 } 6191 6192 private void startDrag() { 6193 WebViewCore.reducePriority(); 6194 // to get better performance, pause updating the picture 6195 WebViewCore.pauseUpdatePicture(mWebViewCore); 6196 nativeSetIsScrolling(true); 6197 6198 if (mHorizontalScrollBarMode != SCROLLBAR_ALWAYSOFF 6199 || mVerticalScrollBarMode != SCROLLBAR_ALWAYSOFF) { 6200 mZoomManager.invokeZoomPicker(); 6201 } 6202 } 6203 6204 private boolean doDrag(int deltaX, int deltaY) { 6205 boolean allDrag = true; 6206 if ((deltaX | deltaY) != 0) { 6207 int oldX = getScrollX(); 6208 int oldY = getScrollY(); 6209 int rangeX = computeMaxScrollX(); 6210 int rangeY = computeMaxScrollY(); 6211 final int contentX = (int)Math.floor(deltaX * mZoomManager.getInvScale()); 6212 final int contentY = (int)Math.floor(deltaY * mZoomManager.getInvScale()); 6213 6214 // Assume page scrolling and change below if we're wrong 6215 mTouchMode = TOUCH_DRAG_MODE; 6216 6217 // Check special scrolling before going to main page scrolling. 6218 if (mIsEditingText && mTouchInEditText && canTextScroll(deltaX, deltaY)) { 6219 // Edit text scrolling 6220 oldX = getTextScrollX(); 6221 rangeX = getMaxTextScrollX(); 6222 deltaX = contentX; 6223 oldY = getTextScrollY(); 6224 rangeY = getMaxTextScrollY(); 6225 deltaY = contentY; 6226 mTouchMode = TOUCH_DRAG_TEXT_MODE; 6227 allDrag = false; 6228 } else if (mCurrentScrollingLayerId != 0) { 6229 // Check the scrolling bounds to see if we will actually do any 6230 // scrolling. The rectangle is in document coordinates. 6231 final int maxX = mScrollingLayerRect.right; 6232 final int maxY = mScrollingLayerRect.bottom; 6233 final int resultX = Math.max(0, 6234 Math.min(mScrollingLayerRect.left + contentX, maxX)); 6235 final int resultY = Math.max(0, 6236 Math.min(mScrollingLayerRect.top + contentY, maxY)); 6237 6238 if (resultX != mScrollingLayerRect.left 6239 || resultY != mScrollingLayerRect.top 6240 || (contentX | contentY) == 0) { 6241 // In case we switched to dragging the page. 6242 mTouchMode = TOUCH_DRAG_LAYER_MODE; 6243 deltaX = contentX; 6244 deltaY = contentY; 6245 oldX = mScrollingLayerRect.left; 6246 oldY = mScrollingLayerRect.top; 6247 rangeX = maxX; 6248 rangeY = maxY; 6249 allDrag = false; 6250 } 6251 } 6252 6253 if (mOverScrollGlow != null) { 6254 mOverScrollGlow.setOverScrollDeltas(deltaX, deltaY); 6255 } 6256 6257 mWebViewPrivate.overScrollBy(deltaX, deltaY, oldX, oldY, 6258 rangeX, rangeY, 6259 mOverscrollDistance, mOverscrollDistance, true); 6260 if (mOverScrollGlow != null && mOverScrollGlow.isAnimating()) { 6261 invalidate(); 6262 } 6263 } 6264 mZoomManager.keepZoomPickerVisible(); 6265 return allDrag; 6266 } 6267 6268 private void stopTouch() { 6269 if (mScroller.isFinished() && !mSelectingText 6270 && (mTouchMode == TOUCH_DRAG_MODE 6271 || mTouchMode == TOUCH_DRAG_LAYER_MODE)) { 6272 WebViewCore.resumePriority(); 6273 WebViewCore.resumeUpdatePicture(mWebViewCore); 6274 nativeSetIsScrolling(false); 6275 } 6276 6277 // we also use mVelocityTracker == null to tell us that we are 6278 // not "moving around", so we can take the slower/prettier 6279 // mode in the drawing code 6280 if (mVelocityTracker != null) { 6281 mVelocityTracker.recycle(); 6282 mVelocityTracker = null; 6283 } 6284 6285 // Release any pulled glows 6286 if (mOverScrollGlow != null) { 6287 mOverScrollGlow.releaseAll(); 6288 } 6289 6290 if (mSelectingText) { 6291 mSelectionStarted = false; 6292 syncSelectionCursors(); 6293 if (mIsCaretSelection) { 6294 resetCaretTimer(); 6295 } 6296 invalidate(); 6297 } 6298 } 6299 6300 private void cancelTouch() { 6301 // we also use mVelocityTracker == null to tell us that we are 6302 // not "moving around", so we can take the slower/prettier 6303 // mode in the drawing code 6304 if (mVelocityTracker != null) { 6305 mVelocityTracker.recycle(); 6306 mVelocityTracker = null; 6307 } 6308 6309 if ((mTouchMode == TOUCH_DRAG_MODE 6310 || mTouchMode == TOUCH_DRAG_LAYER_MODE) && !mSelectingText) { 6311 WebViewCore.resumePriority(); 6312 WebViewCore.resumeUpdatePicture(mWebViewCore); 6313 nativeSetIsScrolling(false); 6314 } 6315 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6316 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6317 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 6318 removeTouchHighlight(); 6319 mHeldMotionless = MOTIONLESS_TRUE; 6320 mTouchMode = TOUCH_DONE_MODE; 6321 } 6322 6323 private void snapDraggingCursor() { 6324 float scale = scaleAlongSegment( 6325 mSelectDraggingCursor.x, mSelectDraggingCursor.y, 6326 mSelectDraggingTextQuad.p4, mSelectDraggingTextQuad.p3); 6327 // clamp scale to ensure point is on the bottom segment 6328 scale = Math.max(0.0f, scale); 6329 scale = Math.min(scale, 1.0f); 6330 float newX = scaleCoordinate(scale, 6331 mSelectDraggingTextQuad.p4.x, mSelectDraggingTextQuad.p3.x); 6332 float newY = scaleCoordinate(scale, 6333 mSelectDraggingTextQuad.p4.y, mSelectDraggingTextQuad.p3.y); 6334 int x = Math.round(newX); 6335 int y = Math.round(newY); 6336 if (mIsEditingText) { 6337 x = Math.max(mEditTextContentBounds.left, 6338 Math.min(mEditTextContentBounds.right, x)); 6339 y = Math.max(mEditTextContentBounds.top, 6340 Math.min(mEditTextContentBounds.bottom, y)); 6341 } 6342 mSelectDraggingCursor.set(x, y); 6343 } 6344 6345 private static float scaleCoordinate(float scale, float coord1, float coord2) { 6346 float diff = coord2 - coord1; 6347 return coord1 + (scale * diff); 6348 } 6349 6350 @Override 6351 public boolean onGenericMotionEvent(MotionEvent event) { 6352 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 6353 switch (event.getAction()) { 6354 case MotionEvent.ACTION_SCROLL: { 6355 final float vscroll; 6356 final float hscroll; 6357 if ((event.getMetaState() & KeyEvent.META_SHIFT_ON) != 0) { 6358 vscroll = 0; 6359 hscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 6360 } else { 6361 vscroll = -event.getAxisValue(MotionEvent.AXIS_VSCROLL); 6362 hscroll = event.getAxisValue(MotionEvent.AXIS_HSCROLL); 6363 } 6364 if (hscroll != 0 || vscroll != 0) { 6365 final int vdelta = (int) (vscroll * 6366 mWebViewPrivate.getVerticalScrollFactor()); 6367 final int hdelta = (int) (hscroll * 6368 mWebViewPrivate.getHorizontalScrollFactor()); 6369 if (pinScrollBy(hdelta, vdelta, false, 0)) { 6370 return true; 6371 } 6372 } 6373 } 6374 } 6375 } 6376 return mWebViewPrivate.super_onGenericMotionEvent(event); 6377 } 6378 6379 private long mTrackballFirstTime = 0; 6380 private long mTrackballLastTime = 0; 6381 private float mTrackballRemainsX = 0.0f; 6382 private float mTrackballRemainsY = 0.0f; 6383 private int mTrackballXMove = 0; 6384 private int mTrackballYMove = 0; 6385 private boolean mSelectingText = false; 6386 private boolean mShowTextSelectionExtra = false; 6387 private boolean mSelectionStarted = false; 6388 private static final int TRACKBALL_KEY_TIMEOUT = 1000; 6389 private static final int TRACKBALL_TIMEOUT = 200; 6390 private static final int TRACKBALL_WAIT = 100; 6391 private static final int TRACKBALL_SCALE = 400; 6392 private static final int TRACKBALL_SCROLL_COUNT = 5; 6393 private static final int TRACKBALL_MOVE_COUNT = 10; 6394 private static final int TRACKBALL_MULTIPLIER = 3; 6395 private static final int SELECT_CURSOR_OFFSET = 16; 6396 private static final int SELECT_SCROLL = 5; 6397 private int mSelectX = 0; 6398 private int mSelectY = 0; 6399 private boolean mTrackballDown = false; 6400 private long mTrackballUpTime = 0; 6401 private long mLastCursorTime = 0; 6402 private Rect mLastCursorBounds; 6403 private SelectionHandleAlpha mHandleAlpha = new SelectionHandleAlpha(); 6404 private ObjectAnimator mHandleAlphaAnimator = 6405 ObjectAnimator.ofInt(mHandleAlpha, "alpha", 0); 6406 6407 // Set by default; BrowserActivity clears to interpret trackball data 6408 // directly for movement. Currently, the framework only passes 6409 // arrow key events, not trackball events, from one child to the next 6410 private boolean mMapTrackballToArrowKeys = true; 6411 6412 private DrawData mDelaySetPicture; 6413 private DrawData mLoadedPicture; 6414 6415 public void setMapTrackballToArrowKeys(boolean setMap) { 6416 mMapTrackballToArrowKeys = setMap; 6417 } 6418 6419 void resetTrackballTime() { 6420 mTrackballLastTime = 0; 6421 } 6422 6423 @Override 6424 public boolean onTrackballEvent(MotionEvent ev) { 6425 long time = ev.getEventTime(); 6426 if ((ev.getMetaState() & KeyEvent.META_ALT_ON) != 0) { 6427 if (ev.getY() > 0) pageDown(true); 6428 if (ev.getY() < 0) pageUp(true); 6429 return true; 6430 } 6431 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 6432 if (mSelectingText) { 6433 return true; // discard press if copy in progress 6434 } 6435 mTrackballDown = true; 6436 if (mNativeClass == 0) { 6437 return false; 6438 } 6439 if (DebugFlags.WEB_VIEW) { 6440 Log.v(LOGTAG, "onTrackballEvent down ev=" + ev 6441 + " time=" + time 6442 + " mLastCursorTime=" + mLastCursorTime); 6443 } 6444 if (mWebView.isInTouchMode()) mWebView.requestFocusFromTouch(); 6445 return false; // let common code in onKeyDown at it 6446 } 6447 if (ev.getAction() == MotionEvent.ACTION_UP) { 6448 // LONG_PRESS_CENTER is set in common onKeyDown 6449 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 6450 mTrackballDown = false; 6451 mTrackballUpTime = time; 6452 if (mSelectingText) { 6453 copySelection(); 6454 selectionDone(); 6455 return true; // discard press if copy in progress 6456 } 6457 if (DebugFlags.WEB_VIEW) { 6458 Log.v(LOGTAG, "onTrackballEvent up ev=" + ev 6459 + " time=" + time 6460 ); 6461 } 6462 return false; // let common code in onKeyUp at it 6463 } 6464 if ((mMapTrackballToArrowKeys && (ev.getMetaState() & KeyEvent.META_SHIFT_ON) == 0) || 6465 AccessibilityManager.getInstance(mContext).isEnabled()) { 6466 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit"); 6467 return false; 6468 } 6469 if (mTrackballDown) { 6470 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent down quit"); 6471 return true; // discard move if trackball is down 6472 } 6473 if (time - mTrackballUpTime < TRACKBALL_TIMEOUT) { 6474 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent up timeout quit"); 6475 return true; 6476 } 6477 // TODO: alternatively we can do panning as touch does 6478 switchOutDrawHistory(); 6479 if (time - mTrackballLastTime > TRACKBALL_TIMEOUT) { 6480 if (DebugFlags.WEB_VIEW) { 6481 Log.v(LOGTAG, "onTrackballEvent time=" 6482 + time + " last=" + mTrackballLastTime); 6483 } 6484 mTrackballFirstTime = time; 6485 mTrackballXMove = mTrackballYMove = 0; 6486 } 6487 mTrackballLastTime = time; 6488 if (DebugFlags.WEB_VIEW) { 6489 Log.v(LOGTAG, "onTrackballEvent ev=" + ev + " time=" + time); 6490 } 6491 mTrackballRemainsX += ev.getX(); 6492 mTrackballRemainsY += ev.getY(); 6493 doTrackball(time, ev.getMetaState()); 6494 return true; 6495 } 6496 6497 private int scaleTrackballX(float xRate, int width) { 6498 int xMove = (int) (xRate / TRACKBALL_SCALE * width); 6499 int nextXMove = xMove; 6500 if (xMove > 0) { 6501 if (xMove > mTrackballXMove) { 6502 xMove -= mTrackballXMove; 6503 } 6504 } else if (xMove < mTrackballXMove) { 6505 xMove -= mTrackballXMove; 6506 } 6507 mTrackballXMove = nextXMove; 6508 return xMove; 6509 } 6510 6511 private int scaleTrackballY(float yRate, int height) { 6512 int yMove = (int) (yRate / TRACKBALL_SCALE * height); 6513 int nextYMove = yMove; 6514 if (yMove > 0) { 6515 if (yMove > mTrackballYMove) { 6516 yMove -= mTrackballYMove; 6517 } 6518 } else if (yMove < mTrackballYMove) { 6519 yMove -= mTrackballYMove; 6520 } 6521 mTrackballYMove = nextYMove; 6522 return yMove; 6523 } 6524 6525 private int keyCodeToSoundsEffect(int keyCode) { 6526 switch(keyCode) { 6527 case KeyEvent.KEYCODE_DPAD_UP: 6528 return SoundEffectConstants.NAVIGATION_UP; 6529 case KeyEvent.KEYCODE_DPAD_RIGHT: 6530 return SoundEffectConstants.NAVIGATION_RIGHT; 6531 case KeyEvent.KEYCODE_DPAD_DOWN: 6532 return SoundEffectConstants.NAVIGATION_DOWN; 6533 case KeyEvent.KEYCODE_DPAD_LEFT: 6534 return SoundEffectConstants.NAVIGATION_LEFT; 6535 } 6536 return 0; 6537 } 6538 6539 private void doTrackball(long time, int metaState) { 6540 int elapsed = (int) (mTrackballLastTime - mTrackballFirstTime); 6541 if (elapsed == 0) { 6542 elapsed = TRACKBALL_TIMEOUT; 6543 } 6544 float xRate = mTrackballRemainsX * 1000 / elapsed; 6545 float yRate = mTrackballRemainsY * 1000 / elapsed; 6546 int viewWidth = getViewWidth(); 6547 int viewHeight = getViewHeight(); 6548 float ax = Math.abs(xRate); 6549 float ay = Math.abs(yRate); 6550 float maxA = Math.max(ax, ay); 6551 if (DebugFlags.WEB_VIEW) { 6552 Log.v(LOGTAG, "doTrackball elapsed=" + elapsed 6553 + " xRate=" + xRate 6554 + " yRate=" + yRate 6555 + " mTrackballRemainsX=" + mTrackballRemainsX 6556 + " mTrackballRemainsY=" + mTrackballRemainsY); 6557 } 6558 int width = mContentWidth - viewWidth; 6559 int height = mContentHeight - viewHeight; 6560 if (width < 0) width = 0; 6561 if (height < 0) height = 0; 6562 ax = Math.abs(mTrackballRemainsX * TRACKBALL_MULTIPLIER); 6563 ay = Math.abs(mTrackballRemainsY * TRACKBALL_MULTIPLIER); 6564 maxA = Math.max(ax, ay); 6565 int count = Math.max(0, (int) maxA); 6566 int oldScrollX = getScrollX(); 6567 int oldScrollY = getScrollY(); 6568 if (count > 0) { 6569 int selectKeyCode = ax < ay ? mTrackballRemainsY < 0 ? 6570 KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN : 6571 mTrackballRemainsX < 0 ? KeyEvent.KEYCODE_DPAD_LEFT : 6572 KeyEvent.KEYCODE_DPAD_RIGHT; 6573 count = Math.min(count, TRACKBALL_MOVE_COUNT); 6574 if (DebugFlags.WEB_VIEW) { 6575 Log.v(LOGTAG, "doTrackball keyCode=" + selectKeyCode 6576 + " count=" + count 6577 + " mTrackballRemainsX=" + mTrackballRemainsX 6578 + " mTrackballRemainsY=" + mTrackballRemainsY); 6579 } 6580 if (mNativeClass != 0) { 6581 for (int i = 0; i < count; i++) { 6582 letPageHandleNavKey(selectKeyCode, time, true, metaState); 6583 } 6584 letPageHandleNavKey(selectKeyCode, time, false, metaState); 6585 } 6586 mTrackballRemainsX = mTrackballRemainsY = 0; 6587 } 6588 if (count >= TRACKBALL_SCROLL_COUNT) { 6589 int xMove = scaleTrackballX(xRate, width); 6590 int yMove = scaleTrackballY(yRate, height); 6591 if (DebugFlags.WEB_VIEW) { 6592 Log.v(LOGTAG, "doTrackball pinScrollBy" 6593 + " count=" + count 6594 + " xMove=" + xMove + " yMove=" + yMove 6595 + " mScrollX-oldScrollX=" + (getScrollX()-oldScrollX) 6596 + " mScrollY-oldScrollY=" + (getScrollY()-oldScrollY) 6597 ); 6598 } 6599 if (Math.abs(getScrollX() - oldScrollX) > Math.abs(xMove)) { 6600 xMove = 0; 6601 } 6602 if (Math.abs(getScrollY() - oldScrollY) > Math.abs(yMove)) { 6603 yMove = 0; 6604 } 6605 if (xMove != 0 || yMove != 0) { 6606 pinScrollBy(xMove, yMove, true, 0); 6607 } 6608 } 6609 } 6610 6611 /** 6612 * Compute the maximum horizontal scroll position. Used by {@link OverScrollGlow}. 6613 * @return Maximum horizontal scroll position within real content 6614 */ 6615 int computeMaxScrollX() { 6616 return Math.max(computeRealHorizontalScrollRange() - getViewWidth(), 0); 6617 } 6618 6619 /** 6620 * Compute the maximum vertical scroll position. Used by {@link OverScrollGlow}. 6621 * @return Maximum vertical scroll position within real content 6622 */ 6623 int computeMaxScrollY() { 6624 return Math.max(computeRealVerticalScrollRange() + getTitleHeight() 6625 - getViewHeightWithTitle(), 0); 6626 } 6627 6628 boolean updateScrollCoordinates(int x, int y) { 6629 int oldX = getScrollX(); 6630 int oldY = getScrollY(); 6631 setScrollXRaw(x); 6632 setScrollYRaw(y); 6633 if (oldX != getScrollX() || oldY != getScrollY()) { 6634 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), oldX, oldY); 6635 return true; 6636 } else { 6637 return false; 6638 } 6639 } 6640 6641 public void flingScroll(int vx, int vy) { 6642 mScroller.fling(getScrollX(), getScrollY(), vx, vy, 0, computeMaxScrollX(), 0, 6643 computeMaxScrollY(), mOverflingDistance, mOverflingDistance); 6644 invalidate(); 6645 } 6646 6647 private void doFling() { 6648 if (mVelocityTracker == null) { 6649 return; 6650 } 6651 int maxX = computeMaxScrollX(); 6652 int maxY = computeMaxScrollY(); 6653 6654 mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling); 6655 int vx = (int) mVelocityTracker.getXVelocity(); 6656 int vy = (int) mVelocityTracker.getYVelocity(); 6657 6658 int scrollX = getScrollX(); 6659 int scrollY = getScrollY(); 6660 int overscrollDistance = mOverscrollDistance; 6661 int overflingDistance = mOverflingDistance; 6662 6663 // Use the layer's scroll data if applicable. 6664 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 6665 scrollX = mScrollingLayerRect.left; 6666 scrollY = mScrollingLayerRect.top; 6667 maxX = mScrollingLayerRect.right; 6668 maxY = mScrollingLayerRect.bottom; 6669 // No overscrolling for layers. 6670 overscrollDistance = overflingDistance = 0; 6671 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 6672 scrollX = getTextScrollX(); 6673 scrollY = getTextScrollY(); 6674 maxX = getMaxTextScrollX(); 6675 maxY = getMaxTextScrollY(); 6676 // No overscrolling for edit text. 6677 overscrollDistance = overflingDistance = 0; 6678 } 6679 6680 if (mSnapScrollMode != SNAP_NONE) { 6681 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 6682 vy = 0; 6683 } else { 6684 vx = 0; 6685 } 6686 } 6687 if ((maxX == 0 && vy == 0) || (maxY == 0 && vx == 0)) { 6688 WebViewCore.resumePriority(); 6689 if (!mSelectingText) { 6690 WebViewCore.resumeUpdatePicture(mWebViewCore); 6691 } 6692 if (mScroller.springBack(scrollX, scrollY, 0, maxX, 0, maxY)) { 6693 invalidate(); 6694 } 6695 return; 6696 } 6697 float currentVelocity = mScroller.getCurrVelocity(); 6698 float velocity = (float) Math.hypot(vx, vy); 6699 if (mLastVelocity > 0 && currentVelocity > 0 && velocity 6700 > mLastVelocity * MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION) { 6701 float deltaR = (float) (Math.abs(Math.atan2(mLastVelY, mLastVelX) 6702 - Math.atan2(vy, vx))); 6703 final float circle = (float) (Math.PI) * 2.0f; 6704 if (deltaR > circle * 0.9f || deltaR < circle * 0.1f) { 6705 vx += currentVelocity * mLastVelX / mLastVelocity; 6706 vy += currentVelocity * mLastVelY / mLastVelocity; 6707 velocity = (float) Math.hypot(vx, vy); 6708 if (DebugFlags.WEB_VIEW) { 6709 Log.v(LOGTAG, "doFling vx= " + vx + " vy=" + vy); 6710 } 6711 } else if (DebugFlags.WEB_VIEW) { 6712 Log.v(LOGTAG, "doFling missed " + deltaR / circle); 6713 } 6714 } else if (DebugFlags.WEB_VIEW) { 6715 Log.v(LOGTAG, "doFling start last=" + mLastVelocity 6716 + " current=" + currentVelocity 6717 + " vx=" + vx + " vy=" + vy 6718 + " maxX=" + maxX + " maxY=" + maxY 6719 + " scrollX=" + scrollX + " scrollY=" + scrollY 6720 + " layer=" + mCurrentScrollingLayerId); 6721 } 6722 6723 // Allow sloppy flings without overscrolling at the edges. 6724 if ((scrollX == 0 || scrollX == maxX) && Math.abs(vx) < Math.abs(vy)) { 6725 vx = 0; 6726 } 6727 if ((scrollY == 0 || scrollY == maxY) && Math.abs(vy) < Math.abs(vx)) { 6728 vy = 0; 6729 } 6730 6731 if (overscrollDistance < overflingDistance) { 6732 if ((vx > 0 && scrollX == -overscrollDistance) || 6733 (vx < 0 && scrollX == maxX + overscrollDistance)) { 6734 vx = 0; 6735 } 6736 if ((vy > 0 && scrollY == -overscrollDistance) || 6737 (vy < 0 && scrollY == maxY + overscrollDistance)) { 6738 vy = 0; 6739 } 6740 } 6741 6742 mLastVelX = vx; 6743 mLastVelY = vy; 6744 mLastVelocity = velocity; 6745 6746 // no horizontal overscroll if the content just fits 6747 mScroller.fling(scrollX, scrollY, -vx, -vy, 0, maxX, 0, maxY, 6748 maxX == 0 ? 0 : overflingDistance, overflingDistance); 6749 6750 invalidate(); 6751 } 6752 6753 /** 6754 * See {@link WebView#getZoomControls()} 6755 */ 6756 @Override 6757 @Deprecated 6758 public View getZoomControls() { 6759 if (!getSettings().supportZoom()) { 6760 Log.w(LOGTAG, "This WebView doesn't support zoom."); 6761 return null; 6762 } 6763 return mZoomManager.getExternalZoomPicker(); 6764 } 6765 6766 void dismissZoomControl() { 6767 mZoomManager.dismissZoomPicker(); 6768 } 6769 6770 float getDefaultZoomScale() { 6771 return mZoomManager.getDefaultScale(); 6772 } 6773 6774 /** 6775 * Return the overview scale of the WebView 6776 * @return The overview scale. 6777 */ 6778 float getZoomOverviewScale() { 6779 return mZoomManager.getZoomOverviewScale(); 6780 } 6781 6782 /** 6783 * See {@link WebView#canZoomIn()} 6784 */ 6785 @Override 6786 public boolean canZoomIn() { 6787 return mZoomManager.canZoomIn(); 6788 } 6789 6790 /** 6791 * See {@link WebView#canZoomOut()} 6792 */ 6793 @Override 6794 public boolean canZoomOut() { 6795 return mZoomManager.canZoomOut(); 6796 } 6797 6798 /** 6799 * See {@link WebView#zoomIn()} 6800 */ 6801 @Override 6802 public boolean zoomIn() { 6803 return mZoomManager.zoomIn(); 6804 } 6805 6806 /** 6807 * See {@link WebView#zoomOut()} 6808 */ 6809 @Override 6810 public boolean zoomOut() { 6811 return mZoomManager.zoomOut(); 6812 } 6813 6814 /* 6815 * Return true if the rect (e.g. plugin) is fully visible and maximized 6816 * inside the WebView. 6817 */ 6818 boolean isRectFitOnScreen(Rect rect) { 6819 final int rectWidth = rect.width(); 6820 final int rectHeight = rect.height(); 6821 final int viewWidth = getViewWidth(); 6822 final int viewHeight = getViewHeightWithTitle(); 6823 float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight / rectHeight); 6824 scale = mZoomManager.computeScaleWithLimits(scale); 6825 return !mZoomManager.willScaleTriggerZoom(scale) 6826 && contentToViewX(rect.left) >= getScrollX() 6827 && contentToViewX(rect.right) <= getScrollX() + viewWidth 6828 && contentToViewY(rect.top) >= getScrollY() 6829 && contentToViewY(rect.bottom) <= getScrollY() + viewHeight; 6830 } 6831 6832 /* 6833 * Maximize and center the rectangle, specified in the document coordinate 6834 * space, inside the WebView. If the zoom doesn't need to be changed, do an 6835 * animated scroll to center it. If the zoom needs to be changed, find the 6836 * zoom center and do a smooth zoom transition. The rect is in document 6837 * coordinates 6838 */ 6839 void centerFitRect(Rect rect) { 6840 final int rectWidth = rect.width(); 6841 final int rectHeight = rect.height(); 6842 final int viewWidth = getViewWidth(); 6843 final int viewHeight = getViewHeightWithTitle(); 6844 float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight 6845 / rectHeight); 6846 scale = mZoomManager.computeScaleWithLimits(scale); 6847 if (!mZoomManager.willScaleTriggerZoom(scale)) { 6848 pinScrollTo(contentToViewX(rect.left + rectWidth / 2) - viewWidth / 2, 6849 contentToViewY(rect.top + rectHeight / 2) - viewHeight / 2, 6850 true, 0); 6851 } else { 6852 float actualScale = mZoomManager.getScale(); 6853 float oldScreenX = rect.left * actualScale - getScrollX(); 6854 float rectViewX = rect.left * scale; 6855 float rectViewWidth = rectWidth * scale; 6856 float newMaxWidth = mContentWidth * scale; 6857 float newScreenX = (viewWidth - rectViewWidth) / 2; 6858 // pin the newX to the WebView 6859 if (newScreenX > rectViewX) { 6860 newScreenX = rectViewX; 6861 } else if (newScreenX > (newMaxWidth - rectViewX - rectViewWidth)) { 6862 newScreenX = viewWidth - (newMaxWidth - rectViewX); 6863 } 6864 float zoomCenterX = (oldScreenX * scale - newScreenX * actualScale) 6865 / (scale - actualScale); 6866 float oldScreenY = rect.top * actualScale + getTitleHeight() 6867 - getScrollY(); 6868 float rectViewY = rect.top * scale + getTitleHeight(); 6869 float rectViewHeight = rectHeight * scale; 6870 float newMaxHeight = mContentHeight * scale + getTitleHeight(); 6871 float newScreenY = (viewHeight - rectViewHeight) / 2; 6872 // pin the newY to the WebView 6873 if (newScreenY > rectViewY) { 6874 newScreenY = rectViewY; 6875 } else if (newScreenY > (newMaxHeight - rectViewY - rectViewHeight)) { 6876 newScreenY = viewHeight - (newMaxHeight - rectViewY); 6877 } 6878 float zoomCenterY = (oldScreenY * scale - newScreenY * actualScale) 6879 / (scale - actualScale); 6880 mZoomManager.setZoomCenter(zoomCenterX, zoomCenterY); 6881 mZoomManager.startZoomAnimation(scale, false); 6882 } 6883 } 6884 6885 // Called by JNI to handle a touch on a node representing an email address, 6886 // address, or phone number 6887 private void overrideLoading(String url) { 6888 mCallbackProxy.uiOverrideUrlLoading(url); 6889 } 6890 6891 @Override 6892 public boolean requestFocus(int direction, Rect previouslyFocusedRect) { 6893 // FIXME: If a subwindow is showing find, and the user touches the 6894 // background window, it can steal focus. 6895 if (mFindIsUp) return false; 6896 boolean result = false; 6897 result = mWebViewPrivate.super_requestFocus(direction, previouslyFocusedRect); 6898 if (mWebViewCore.getSettings().getNeedInitialFocus() 6899 && !mWebView.isInTouchMode()) { 6900 // For cases such as GMail, where we gain focus from a direction, 6901 // we want to move to the first available link. 6902 // FIXME: If there are no visible links, we may not want to 6903 int fakeKeyDirection = 0; 6904 switch(direction) { 6905 case View.FOCUS_UP: 6906 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_UP; 6907 break; 6908 case View.FOCUS_DOWN: 6909 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_DOWN; 6910 break; 6911 case View.FOCUS_LEFT: 6912 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_LEFT; 6913 break; 6914 case View.FOCUS_RIGHT: 6915 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_RIGHT; 6916 break; 6917 default: 6918 return result; 6919 } 6920 mWebViewCore.sendMessage(EventHub.SET_INITIAL_FOCUS, fakeKeyDirection); 6921 } 6922 return result; 6923 } 6924 6925 @Override 6926 public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6927 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6928 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6929 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6930 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6931 6932 int measuredHeight = heightSize; 6933 int measuredWidth = widthSize; 6934 6935 // Grab the content size from WebViewCore. 6936 int contentHeight = contentToViewDimension(mContentHeight); 6937 int contentWidth = contentToViewDimension(mContentWidth); 6938 6939// Log.d(LOGTAG, "------- measure " + heightMode); 6940 6941 if (heightMode != MeasureSpec.EXACTLY) { 6942 mHeightCanMeasure = true; 6943 measuredHeight = contentHeight; 6944 if (heightMode == MeasureSpec.AT_MOST) { 6945 // If we are larger than the AT_MOST height, then our height can 6946 // no longer be measured and we should scroll internally. 6947 if (measuredHeight > heightSize) { 6948 measuredHeight = heightSize; 6949 mHeightCanMeasure = false; 6950 measuredHeight |= View.MEASURED_STATE_TOO_SMALL; 6951 } 6952 } 6953 } else { 6954 mHeightCanMeasure = false; 6955 } 6956 if (mNativeClass != 0) { 6957 nativeSetHeightCanMeasure(mHeightCanMeasure); 6958 } 6959 // For the width, always use the given size unless unspecified. 6960 if (widthMode == MeasureSpec.UNSPECIFIED) { 6961 mWidthCanMeasure = true; 6962 measuredWidth = contentWidth; 6963 } else { 6964 if (measuredWidth < contentWidth) { 6965 measuredWidth |= View.MEASURED_STATE_TOO_SMALL; 6966 } 6967 mWidthCanMeasure = false; 6968 } 6969 6970 synchronized (this) { 6971 mWebViewPrivate.setMeasuredDimension(measuredWidth, measuredHeight); 6972 } 6973 } 6974 6975 @Override 6976 public boolean requestChildRectangleOnScreen(View child, 6977 Rect rect, 6978 boolean immediate) { 6979 if (mNativeClass == 0) { 6980 return false; 6981 } 6982 // don't scroll while in zoom animation. When it is done, we will adjust 6983 // the necessary components 6984 if (mZoomManager.isFixedLengthAnimationInProgress()) { 6985 return false; 6986 } 6987 6988 rect.offset(child.getLeft() - child.getScrollX(), 6989 child.getTop() - child.getScrollY()); 6990 6991 Rect content = new Rect(viewToContentX(getScrollX()), 6992 viewToContentY(getScrollY()), 6993 viewToContentX(getScrollX() + getWidth() 6994 - mWebView.getVerticalScrollbarWidth()), 6995 viewToContentY(getScrollY() + getViewHeightWithTitle())); 6996 int screenTop = contentToViewY(content.top); 6997 int screenBottom = contentToViewY(content.bottom); 6998 int height = screenBottom - screenTop; 6999 int scrollYDelta = 0; 7000 7001 if (rect.bottom > screenBottom) { 7002 int oneThirdOfScreenHeight = height / 3; 7003 if (rect.height() > 2 * oneThirdOfScreenHeight) { 7004 // If the rectangle is too tall to fit in the bottom two thirds 7005 // of the screen, place it at the top. 7006 scrollYDelta = rect.top - screenTop; 7007 } else { 7008 // If the rectangle will still fit on screen, we want its 7009 // top to be in the top third of the screen. 7010 scrollYDelta = rect.top - (screenTop + oneThirdOfScreenHeight); 7011 } 7012 } else if (rect.top < screenTop) { 7013 scrollYDelta = rect.top - screenTop; 7014 } 7015 7016 int screenLeft = contentToViewX(content.left); 7017 int screenRight = contentToViewX(content.right); 7018 int width = screenRight - screenLeft; 7019 int scrollXDelta = 0; 7020 7021 if (rect.right > screenRight && rect.left > screenLeft) { 7022 if (rect.width() > width) { 7023 scrollXDelta += (rect.left - screenLeft); 7024 } else { 7025 scrollXDelta += (rect.right - screenRight); 7026 } 7027 } else if (rect.left < screenLeft) { 7028 scrollXDelta -= (screenLeft - rect.left); 7029 } 7030 7031 if ((scrollYDelta | scrollXDelta) != 0) { 7032 return pinScrollBy(scrollXDelta, scrollYDelta, !immediate, 0); 7033 } 7034 7035 return false; 7036 } 7037 7038 /* package */ void replaceTextfieldText(int oldStart, int oldEnd, 7039 String replace, int newStart, int newEnd) { 7040 WebViewCore.ReplaceTextData arg = new WebViewCore.ReplaceTextData(); 7041 arg.mReplace = replace; 7042 arg.mNewStart = newStart; 7043 arg.mNewEnd = newEnd; 7044 mTextGeneration++; 7045 arg.mTextGeneration = mTextGeneration; 7046 sendBatchableInputMessage(EventHub.REPLACE_TEXT, oldStart, oldEnd, arg); 7047 } 7048 7049 /* package */ void passToJavaScript(String currentText, KeyEvent event) { 7050 // check if mWebViewCore has been destroyed 7051 if (mWebViewCore == null) { 7052 return; 7053 } 7054 WebViewCore.JSKeyData arg = new WebViewCore.JSKeyData(); 7055 arg.mEvent = event; 7056 arg.mCurrentText = currentText; 7057 // Increase our text generation number, and pass it to webcore thread 7058 mTextGeneration++; 7059 mWebViewCore.sendMessage(EventHub.PASS_TO_JS, mTextGeneration, 0, arg); 7060 // WebKit's document state is not saved until about to leave the page. 7061 // To make sure the host application, like Browser, has the up to date 7062 // document state when it goes to background, we force to save the 7063 // document state. 7064 mWebViewCore.removeMessages(EventHub.SAVE_DOCUMENT_STATE); 7065 mWebViewCore.sendMessageDelayed(EventHub.SAVE_DOCUMENT_STATE, null, 1000); 7066 } 7067 7068 public synchronized WebViewCore getWebViewCore() { 7069 return mWebViewCore; 7070 } 7071 7072 private boolean canTextScroll(int directionX, int directionY) { 7073 int scrollX = getTextScrollX(); 7074 int scrollY = getTextScrollY(); 7075 int maxScrollX = getMaxTextScrollX(); 7076 int maxScrollY = getMaxTextScrollY(); 7077 boolean canScrollX = (directionX > 0) 7078 ? (scrollX < maxScrollX) 7079 : (scrollX > 0); 7080 boolean canScrollY = (directionY > 0) 7081 ? (scrollY < maxScrollY) 7082 : (scrollY > 0); 7083 return canScrollX || canScrollY; 7084 } 7085 7086 private int getTextScrollX() { 7087 return -mEditTextContent.left; 7088 } 7089 7090 private int getTextScrollY() { 7091 return -mEditTextContent.top; 7092 } 7093 7094 private int getMaxTextScrollX() { 7095 return Math.max(0, mEditTextContent.width() - mEditTextContentBounds.width()); 7096 } 7097 7098 private int getMaxTextScrollY() { 7099 return Math.max(0, mEditTextContent.height() - mEditTextContentBounds.height()); 7100 } 7101 7102 //------------------------------------------------------------------------- 7103 // Methods can be called from a separate thread, like WebViewCore 7104 // If it needs to call the View system, it has to send message. 7105 //------------------------------------------------------------------------- 7106 7107 /** 7108 * General handler to receive message coming from webkit thread 7109 */ 7110 class PrivateHandler extends Handler implements WebViewInputDispatcher.UiCallbacks { 7111 @Override 7112 public void handleMessage(Message msg) { 7113 // exclude INVAL_RECT_MSG_ID since it is frequently output 7114 if (DebugFlags.WEB_VIEW && msg.what != INVAL_RECT_MSG_ID) { 7115 if (msg.what >= FIRST_PRIVATE_MSG_ID 7116 && msg.what <= LAST_PRIVATE_MSG_ID) { 7117 Log.v(LOGTAG, HandlerPrivateDebugString[msg.what 7118 - FIRST_PRIVATE_MSG_ID]); 7119 } else if (msg.what >= FIRST_PACKAGE_MSG_ID 7120 && msg.what <= LAST_PACKAGE_MSG_ID) { 7121 Log.v(LOGTAG, HandlerPackageDebugString[msg.what 7122 - FIRST_PACKAGE_MSG_ID]); 7123 } else { 7124 Log.v(LOGTAG, Integer.toString(msg.what)); 7125 } 7126 } 7127 if (mWebViewCore == null) { 7128 // after WebView's destroy() is called, skip handling messages. 7129 return; 7130 } 7131 if (mBlockWebkitViewMessages 7132 && msg.what != WEBCORE_INITIALIZED_MSG_ID) { 7133 // Blocking messages from webkit 7134 return; 7135 } 7136 switch (msg.what) { 7137 case REMEMBER_PASSWORD: { 7138 mDatabase.setUsernamePassword( 7139 msg.getData().getString("host"), 7140 msg.getData().getString("username"), 7141 msg.getData().getString("password")); 7142 ((Message) msg.obj).sendToTarget(); 7143 break; 7144 } 7145 case NEVER_REMEMBER_PASSWORD: { 7146 mDatabase.setUsernamePassword(msg.getData().getString("host"), null, null); 7147 ((Message) msg.obj).sendToTarget(); 7148 break; 7149 } 7150 case SCROLL_SELECT_TEXT: { 7151 if (mAutoScrollX == 0 && mAutoScrollY == 0) { 7152 mSentAutoScrollMessage = false; 7153 break; 7154 } 7155 if (mCurrentScrollingLayerId == 0) { 7156 pinScrollBy(mAutoScrollX, mAutoScrollY, true, 0); 7157 } else { 7158 scrollLayerTo(mScrollingLayerRect.left + mAutoScrollX, 7159 mScrollingLayerRect.top + mAutoScrollY); 7160 } 7161 sendEmptyMessageDelayed( 7162 SCROLL_SELECT_TEXT, SELECT_SCROLL_INTERVAL); 7163 break; 7164 } 7165 case SCROLL_TO_MSG_ID: { 7166 // arg1 = animate, arg2 = onlyIfImeIsShowing 7167 // obj = Point(x, y) 7168 if (msg.arg2 == 1) { 7169 // This scroll is intended to bring the textfield into 7170 // view, but is only necessary if the IME is showing 7171 InputMethodManager imm = InputMethodManager.peekInstance(); 7172 if (imm == null || !imm.isAcceptingText() 7173 || !imm.isActive(mWebView)) { 7174 break; 7175 } 7176 } 7177 final Point p = (Point) msg.obj; 7178 contentScrollTo(p.x, p.y, msg.arg1 == 1); 7179 break; 7180 } 7181 case UPDATE_ZOOM_RANGE: { 7182 WebViewCore.ViewState viewState = (WebViewCore.ViewState) msg.obj; 7183 // mScrollX contains the new minPrefWidth 7184 mZoomManager.updateZoomRange(viewState, getViewWidth(), viewState.mScrollX); 7185 break; 7186 } 7187 case UPDATE_ZOOM_DENSITY: { 7188 final float density = (Float) msg.obj; 7189 mZoomManager.updateDefaultZoomDensity(density); 7190 break; 7191 } 7192 case NEW_PICTURE_MSG_ID: { 7193 // called for new content 7194 final WebViewCore.DrawData draw = (WebViewCore.DrawData) msg.obj; 7195 setNewPicture(draw, true); 7196 break; 7197 } 7198 case WEBCORE_INITIALIZED_MSG_ID: 7199 // nativeCreate sets mNativeClass to a non-zero value 7200 String drawableDir = BrowserFrame.getRawResFilename( 7201 BrowserFrame.DRAWABLEDIR, mContext); 7202 WindowManager windowManager = 7203 (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); 7204 Display display = windowManager.getDefaultDisplay(); 7205 nativeCreate(msg.arg1, drawableDir, 7206 ActivityManager.isHighEndGfx(display)); 7207 if (mDelaySetPicture != null) { 7208 setNewPicture(mDelaySetPicture, true); 7209 mDelaySetPicture = null; 7210 } 7211 if (mIsPaused) { 7212 nativeSetPauseDrawing(mNativeClass, true); 7213 } 7214 mInputDispatcher = new WebViewInputDispatcher(this, 7215 mWebViewCore.getInputDispatcherCallbacks()); 7216 break; 7217 case UPDATE_TEXTFIELD_TEXT_MSG_ID: 7218 // Make sure that the textfield is currently focused 7219 // and representing the same node as the pointer. 7220 if (msg.arg2 == mTextGeneration) { 7221 String text = (String) msg.obj; 7222 if (null == text) { 7223 text = ""; 7224 } 7225 if (mInputConnection != null && 7226 mFieldPointer == msg.arg1) { 7227 mInputConnection.setTextAndKeepSelection(text); 7228 } 7229 } 7230 break; 7231 case UPDATE_TEXT_SELECTION_MSG_ID: 7232 updateTextSelectionFromMessage(msg.arg1, msg.arg2, 7233 (WebViewCore.TextSelectionData) msg.obj); 7234 break; 7235 case TAKE_FOCUS: 7236 int direction = msg.arg1; 7237 View focusSearch = mWebView.focusSearch(direction); 7238 if (focusSearch != null && focusSearch != mWebView) { 7239 focusSearch.requestFocus(); 7240 } 7241 break; 7242 case CLEAR_TEXT_ENTRY: 7243 hideSoftKeyboard(); 7244 break; 7245 case INVAL_RECT_MSG_ID: { 7246 Rect r = (Rect)msg.obj; 7247 if (r == null) { 7248 invalidate(); 7249 } else { 7250 // we need to scale r from content into view coords, 7251 // which viewInvalidate() does for us 7252 viewInvalidate(r.left, r.top, r.right, r.bottom); 7253 } 7254 break; 7255 } 7256 case REQUEST_FORM_DATA: 7257 if (mFieldPointer == msg.arg1) { 7258 ArrayAdapter<String> adapter = (ArrayAdapter<String>)msg.obj; 7259 mAutoCompletePopup.setAdapter(adapter); 7260 } 7261 break; 7262 7263 case LONG_PRESS_CENTER: 7264 // as this is shared by keydown and trackballdown, reset all 7265 // the states 7266 mGotCenterDown = false; 7267 mTrackballDown = false; 7268 performLongClick(); 7269 break; 7270 7271 case WEBCORE_NEED_TOUCH_EVENTS: 7272 mInputDispatcher.setWebKitWantsTouchEvents(msg.arg1 != 0); 7273 break; 7274 7275 case REQUEST_KEYBOARD: 7276 if (msg.arg1 == 0) { 7277 hideSoftKeyboard(); 7278 } else { 7279 displaySoftKeyboard(false); 7280 } 7281 break; 7282 7283 case DRAG_HELD_MOTIONLESS: 7284 mHeldMotionless = MOTIONLESS_TRUE; 7285 invalidate(); 7286 break; 7287 7288 case SCREEN_ON: 7289 mWebView.setKeepScreenOn(msg.arg1 == 1); 7290 break; 7291 7292 case ENTER_FULLSCREEN_VIDEO: 7293 int layerId = msg.arg1; 7294 7295 String url = (String) msg.obj; 7296 if (mHTML5VideoViewProxy != null) { 7297 mHTML5VideoViewProxy.enterFullScreenVideo(layerId, url); 7298 } 7299 break; 7300 7301 case EXIT_FULLSCREEN_VIDEO: 7302 if (mHTML5VideoViewProxy != null) { 7303 mHTML5VideoViewProxy.exitFullScreenVideo(); 7304 } 7305 break; 7306 7307 case SHOW_FULLSCREEN: { 7308 View view = (View) msg.obj; 7309 int orientation = msg.arg1; 7310 int npp = msg.arg2; 7311 7312 if (inFullScreenMode()) { 7313 Log.w(LOGTAG, "Should not have another full screen."); 7314 dismissFullScreenMode(); 7315 } 7316 mFullScreenHolder = new PluginFullScreenHolder(WebViewClassic.this, orientation, npp); 7317 mFullScreenHolder.setContentView(view); 7318 mFullScreenHolder.show(); 7319 invalidate(); 7320 7321 break; 7322 } 7323 case HIDE_FULLSCREEN: 7324 dismissFullScreenMode(); 7325 break; 7326 7327 case SHOW_RECT_MSG_ID: { 7328 WebViewCore.ShowRectData data = (WebViewCore.ShowRectData) msg.obj; 7329 int left = contentToViewX(data.mLeft); 7330 int width = contentToViewDimension(data.mWidth); 7331 int maxWidth = contentToViewDimension(data.mContentWidth); 7332 int viewWidth = getViewWidth(); 7333 int x = (int) (left + data.mXPercentInDoc * width - 7334 data.mXPercentInView * viewWidth); 7335 if (DebugFlags.WEB_VIEW) { 7336 Log.v(LOGTAG, "showRectMsg=(left=" + left + ",width=" + 7337 width + ",maxWidth=" + maxWidth + 7338 ",viewWidth=" + viewWidth + ",x=" 7339 + x + ",xPercentInDoc=" + data.mXPercentInDoc + 7340 ",xPercentInView=" + data.mXPercentInView+ ")"); 7341 } 7342 // use the passing content width to cap x as the current 7343 // mContentWidth may not be updated yet 7344 x = Math.max(0, 7345 (Math.min(maxWidth, x + viewWidth)) - viewWidth); 7346 int top = contentToViewY(data.mTop); 7347 int height = contentToViewDimension(data.mHeight); 7348 int maxHeight = contentToViewDimension(data.mContentHeight); 7349 int viewHeight = getViewHeight(); 7350 int y = (int) (top + data.mYPercentInDoc * height - 7351 data.mYPercentInView * viewHeight); 7352 if (DebugFlags.WEB_VIEW) { 7353 Log.v(LOGTAG, "showRectMsg=(top=" + top + ",height=" + 7354 height + ",maxHeight=" + maxHeight + 7355 ",viewHeight=" + viewHeight + ",y=" 7356 + y + ",yPercentInDoc=" + data.mYPercentInDoc + 7357 ",yPercentInView=" + data.mYPercentInView+ ")"); 7358 } 7359 // use the passing content height to cap y as the current 7360 // mContentHeight may not be updated yet 7361 y = Math.max(0, 7362 (Math.min(maxHeight, y + viewHeight) - viewHeight)); 7363 // We need to take into account the visible title height 7364 // when scrolling since y is an absolute view position. 7365 y = Math.max(0, y - getVisibleTitleHeightImpl()); 7366 mWebView.scrollTo(x, y); 7367 } 7368 break; 7369 7370 case CENTER_FIT_RECT: 7371 centerFitRect((Rect)msg.obj); 7372 break; 7373 7374 case SET_SCROLLBAR_MODES: 7375 mHorizontalScrollBarMode = msg.arg1; 7376 mVerticalScrollBarMode = msg.arg2; 7377 break; 7378 7379 case SELECTION_STRING_CHANGED: 7380 if (isAccessibilityEnabled()) { 7381 getAccessibilityInjector() 7382 .handleSelectionChangedIfNecessary((String) msg.obj); 7383 } 7384 break; 7385 7386 case FOCUS_NODE_CHANGED: 7387 mIsEditingText = (msg.arg1 == mFieldPointer); 7388 if (mAutoCompletePopup != null && !mIsEditingText) { 7389 mAutoCompletePopup.clearAdapter(); 7390 } 7391 // fall through to HIT_TEST_RESULT 7392 case HIT_TEST_RESULT: 7393 WebKitHitTest hit = (WebKitHitTest) msg.obj; 7394 mFocusedNode = hit; 7395 setTouchHighlightRects(hit); 7396 setHitTestResult(hit); 7397 break; 7398 7399 case SAVE_WEBARCHIVE_FINISHED: 7400 SaveWebArchiveMessage saveMessage = (SaveWebArchiveMessage)msg.obj; 7401 if (saveMessage.mCallback != null) { 7402 saveMessage.mCallback.onReceiveValue(saveMessage.mResultFile); 7403 } 7404 break; 7405 7406 case SET_AUTOFILLABLE: 7407 mAutoFillData = (WebViewCore.AutoFillData) msg.obj; 7408 if (mInputConnection != null) { 7409 mInputConnection.setAutoFillable(mAutoFillData.getQueryId()); 7410 mAutoCompletePopup.setAutoFillQueryId(mAutoFillData.getQueryId()); 7411 } 7412 break; 7413 7414 case AUTOFILL_COMPLETE: 7415 if (mAutoCompletePopup != null) { 7416 ArrayList<String> pastEntries = new ArrayList<String>(); 7417 mAutoCompletePopup.setAdapter(new ArrayAdapter<String>( 7418 mContext, 7419 com.android.internal.R.layout.web_text_view_dropdown, 7420 pastEntries)); 7421 } 7422 break; 7423 7424 case COPY_TO_CLIPBOARD: 7425 copyToClipboard((String) msg.obj); 7426 break; 7427 7428 case INIT_EDIT_FIELD: 7429 if (mInputConnection != null) { 7430 TextFieldInitData initData = (TextFieldInitData) msg.obj; 7431 mTextGeneration = 0; 7432 mFieldPointer = initData.mFieldPointer; 7433 mInputConnection.initEditorInfo(initData); 7434 mInputConnection.setTextAndKeepSelection(initData.mText); 7435 mEditTextContentBounds.set(initData.mContentBounds); 7436 mEditTextLayerId = initData.mNodeLayerId; 7437 nativeMapLayerRect(mNativeClass, mEditTextLayerId, 7438 mEditTextContentBounds); 7439 mEditTextContent.set(initData.mClientRect); 7440 relocateAutoCompletePopup(); 7441 } 7442 break; 7443 7444 case REPLACE_TEXT:{ 7445 String text = (String)msg.obj; 7446 int start = msg.arg1; 7447 int end = msg.arg2; 7448 int cursorPosition = start + text.length(); 7449 replaceTextfieldText(start, end, text, 7450 cursorPosition, cursorPosition); 7451 selectionDone(); 7452 break; 7453 } 7454 7455 case UPDATE_MATCH_COUNT: { 7456 WebViewCore.FindAllRequest request = (WebViewCore.FindAllRequest)msg.obj; 7457 if (request == null) { 7458 if (mFindCallback != null) { 7459 mFindCallback.updateMatchCount(0, 0, true); 7460 } 7461 } else if (request == mFindRequest) { 7462 int matchCount, matchIndex; 7463 synchronized (mFindRequest) { 7464 matchCount = request.mMatchCount; 7465 matchIndex = request.mMatchIndex; 7466 } 7467 if (mFindCallback != null) { 7468 mFindCallback.updateMatchCount(matchIndex, matchCount, false); 7469 } 7470 if (mFindListener != null) { 7471 mFindListener.onFindResultReceived(matchIndex, matchCount, true); 7472 } 7473 } 7474 break; 7475 } 7476 7477 case CLEAR_CARET_HANDLE: 7478 if (mIsCaretSelection) { 7479 selectionDone(); 7480 } 7481 break; 7482 7483 case KEY_PRESS: 7484 sendBatchableInputMessage(EventHub.KEY_PRESS, msg.arg1, 0, null); 7485 break; 7486 7487 case RELOCATE_AUTO_COMPLETE_POPUP: 7488 relocateAutoCompletePopup(); 7489 break; 7490 7491 case AUTOFILL_FORM: 7492 mWebViewCore.sendMessage(EventHub.AUTOFILL_FORM, 7493 msg.arg1, /* unused */0); 7494 break; 7495 7496 case EDIT_TEXT_SIZE_CHANGED: 7497 if (msg.arg1 == mFieldPointer) { 7498 mEditTextContent.set((Rect)msg.obj); 7499 } 7500 break; 7501 7502 case SHOW_CARET_HANDLE: 7503 if (!mSelectingText && mIsEditingText && mIsCaretSelection) { 7504 setupWebkitSelect(); 7505 resetCaretTimer(); 7506 showPasteWindow(); 7507 } 7508 break; 7509 7510 case UPDATE_CONTENT_BOUNDS: 7511 mEditTextContentBounds.set((Rect) msg.obj); 7512 nativeMapLayerRect(mNativeClass, mEditTextLayerId, 7513 mEditTextContentBounds); 7514 break; 7515 7516 case SCROLL_EDIT_TEXT: 7517 scrollEditWithCursor(); 7518 break; 7519 7520 default: 7521 super.handleMessage(msg); 7522 break; 7523 } 7524 } 7525 7526 @Override 7527 public Looper getUiLooper() { 7528 return getLooper(); 7529 } 7530 7531 @Override 7532 public void dispatchUiEvent(MotionEvent event, int eventType, int flags) { 7533 onHandleUiEvent(event, eventType, flags); 7534 } 7535 7536 @Override 7537 public Context getContext() { 7538 return WebViewClassic.this.getContext(); 7539 } 7540 7541 @Override 7542 public boolean shouldInterceptTouchEvent(MotionEvent event) { 7543 if (!mSelectingText) { 7544 return false; 7545 } 7546 ensureSelectionHandles(); 7547 int y = Math.round(event.getY() - getTitleHeight() + getScrollY()); 7548 int x = Math.round(event.getX() + getScrollX()); 7549 boolean isPressingHandle; 7550 if (mIsCaretSelection) { 7551 isPressingHandle = mSelectHandleCenter.getBounds() 7552 .contains(x, y); 7553 } else { 7554 isPressingHandle = 7555 mSelectHandleBaseBounds.contains(x, y) 7556 || mSelectHandleExtentBounds.contains(x, y); 7557 } 7558 return isPressingHandle; 7559 } 7560 7561 @Override 7562 public void showTapHighlight(boolean show) { 7563 if (mShowTapHighlight != show) { 7564 mShowTapHighlight = show; 7565 invalidate(); 7566 } 7567 } 7568 7569 @Override 7570 public void clearPreviousHitTest() { 7571 setHitTestResult(null); 7572 } 7573 } 7574 7575 private void setHitTestTypeFromUrl(String url) { 7576 String substr = null; 7577 if (url.startsWith(SCHEME_GEO)) { 7578 mInitialHitTestResult.setType(HitTestResult.GEO_TYPE); 7579 substr = url.substring(SCHEME_GEO.length()); 7580 } else if (url.startsWith(SCHEME_TEL)) { 7581 mInitialHitTestResult.setType(HitTestResult.PHONE_TYPE); 7582 substr = url.substring(SCHEME_TEL.length()); 7583 } else if (url.startsWith(SCHEME_MAILTO)) { 7584 mInitialHitTestResult.setType(HitTestResult.EMAIL_TYPE); 7585 substr = url.substring(SCHEME_MAILTO.length()); 7586 } else { 7587 mInitialHitTestResult.setType(HitTestResult.SRC_ANCHOR_TYPE); 7588 mInitialHitTestResult.setExtra(url); 7589 return; 7590 } 7591 try { 7592 mInitialHitTestResult.setExtra(URLDecoder.decode(substr, "UTF-8")); 7593 } catch (Throwable e) { 7594 Log.w(LOGTAG, "Failed to decode URL! " + substr, e); 7595 mInitialHitTestResult.setType(HitTestResult.UNKNOWN_TYPE); 7596 } 7597 } 7598 7599 private void setHitTestResult(WebKitHitTest hit) { 7600 if (hit == null) { 7601 mInitialHitTestResult = null; 7602 return; 7603 } 7604 mInitialHitTestResult = new HitTestResult(); 7605 if (hit.mLinkUrl != null) { 7606 setHitTestTypeFromUrl(hit.mLinkUrl); 7607 if (hit.mImageUrl != null 7608 && mInitialHitTestResult.getType() == HitTestResult.SRC_ANCHOR_TYPE) { 7609 mInitialHitTestResult.setType(HitTestResult.SRC_IMAGE_ANCHOR_TYPE); 7610 mInitialHitTestResult.setExtra(hit.mImageUrl); 7611 } 7612 } else if (hit.mImageUrl != null) { 7613 mInitialHitTestResult.setType(HitTestResult.IMAGE_TYPE); 7614 mInitialHitTestResult.setExtra(hit.mImageUrl); 7615 } else if (hit.mEditable) { 7616 mInitialHitTestResult.setType(HitTestResult.EDIT_TEXT_TYPE); 7617 } else if (hit.mIntentUrl != null) { 7618 setHitTestTypeFromUrl(hit.mIntentUrl); 7619 } 7620 } 7621 7622 private boolean shouldDrawHighlightRect() { 7623 if (mFocusedNode == null || mInitialHitTestResult == null) { 7624 return false; 7625 } 7626 if (mTouchHighlightRegion.isEmpty()) { 7627 return false; 7628 } 7629 if (mFocusedNode.mHasFocus && !mWebView.isInTouchMode()) { 7630 return mDrawCursorRing && !mFocusedNode.mEditable; 7631 } 7632 if (mFocusedNode.mHasFocus && mFocusedNode.mEditable) { 7633 return false; 7634 } 7635 return mShowTapHighlight; 7636 } 7637 7638 7639 private FocusTransitionDrawable mFocusTransition = null; 7640 static class FocusTransitionDrawable extends Drawable { 7641 Region mPreviousRegion; 7642 Region mNewRegion; 7643 float mProgress = 0; 7644 WebViewClassic mWebView; 7645 Paint mPaint; 7646 int mMaxAlpha; 7647 Point mTranslate; 7648 7649 public FocusTransitionDrawable(WebViewClassic view) { 7650 mWebView = view; 7651 mPaint = new Paint(mWebView.mTouchHightlightPaint); 7652 mMaxAlpha = mPaint.getAlpha(); 7653 } 7654 7655 @Override 7656 public void setColorFilter(ColorFilter cf) { 7657 } 7658 7659 @Override 7660 public void setAlpha(int alpha) { 7661 } 7662 7663 @Override 7664 public int getOpacity() { 7665 return 0; 7666 } 7667 7668 public void setProgress(float p) { 7669 mProgress = p; 7670 if (mWebView.mFocusTransition == this) { 7671 if (mProgress == 1f) 7672 mWebView.mFocusTransition = null; 7673 mWebView.invalidate(); 7674 } 7675 } 7676 7677 public float getProgress() { 7678 return mProgress; 7679 } 7680 7681 @Override 7682 public void draw(Canvas canvas) { 7683 if (mTranslate == null) { 7684 Rect bounds = mPreviousRegion.getBounds(); 7685 Point from = new Point(bounds.centerX(), bounds.centerY()); 7686 mNewRegion.getBounds(bounds); 7687 Point to = new Point(bounds.centerX(), bounds.centerY()); 7688 mTranslate = new Point(from.x - to.x, from.y - to.y); 7689 } 7690 int alpha = (int) (mProgress * mMaxAlpha); 7691 RegionIterator iter = new RegionIterator(mPreviousRegion); 7692 Rect r = new Rect(); 7693 mPaint.setAlpha(mMaxAlpha - alpha); 7694 float tx = mTranslate.x * mProgress; 7695 float ty = mTranslate.y * mProgress; 7696 int save = canvas.save(Canvas.MATRIX_SAVE_FLAG); 7697 canvas.translate(-tx, -ty); 7698 while (iter.next(r)) { 7699 canvas.drawRect(r, mPaint); 7700 } 7701 canvas.restoreToCount(save); 7702 iter = new RegionIterator(mNewRegion); 7703 r = new Rect(); 7704 mPaint.setAlpha(alpha); 7705 save = canvas.save(Canvas.MATRIX_SAVE_FLAG); 7706 tx = mTranslate.x - tx; 7707 ty = mTranslate.y - ty; 7708 canvas.translate(tx, ty); 7709 while (iter.next(r)) { 7710 canvas.drawRect(r, mPaint); 7711 } 7712 canvas.restoreToCount(save); 7713 } 7714 }; 7715 7716 private boolean shouldAnimateTo(WebKitHitTest hit) { 7717 // TODO: Don't be annoying or throw out the animation entirely 7718 return false; 7719 } 7720 7721 private void setTouchHighlightRects(WebKitHitTest hit) { 7722 FocusTransitionDrawable transition = null; 7723 if (shouldAnimateTo(hit)) { 7724 transition = new FocusTransitionDrawable(this); 7725 } 7726 Rect[] rects = hit != null ? hit.mTouchRects : null; 7727 if (!mTouchHighlightRegion.isEmpty()) { 7728 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 7729 if (transition != null) { 7730 transition.mPreviousRegion = new Region(mTouchHighlightRegion); 7731 } 7732 mTouchHighlightRegion.setEmpty(); 7733 } 7734 if (rects != null) { 7735 mTouchHightlightPaint.setColor(hit.mTapHighlightColor); 7736 for (Rect rect : rects) { 7737 Rect viewRect = contentToViewRect(rect); 7738 // some sites, like stories in nytimes.com, set 7739 // mouse event handler in the top div. It is not 7740 // user friendly to highlight the div if it covers 7741 // more than half of the screen. 7742 if (viewRect.width() < getWidth() >> 1 7743 || viewRect.height() < getHeight() >> 1) { 7744 mTouchHighlightRegion.union(viewRect); 7745 } else if (DebugFlags.WEB_VIEW) { 7746 Log.d(LOGTAG, "Skip the huge selection rect:" 7747 + viewRect); 7748 } 7749 } 7750 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 7751 if (transition != null && transition.mPreviousRegion != null) { 7752 transition.mNewRegion = new Region(mTouchHighlightRegion); 7753 mFocusTransition = transition; 7754 ObjectAnimator animator = ObjectAnimator.ofFloat( 7755 mFocusTransition, "progress", 1f); 7756 animator.start(); 7757 } 7758 } 7759 } 7760 7761 // Interface to allow the profiled WebView to hook the page swap notifications. 7762 public interface PageSwapDelegate { 7763 void onPageSwapOccurred(boolean notifyAnimationStarted); 7764 } 7765 7766 long mLastSwapTime; 7767 double mAverageSwapFps; 7768 7769 /** Called by JNI when pages are swapped (only occurs with hardware 7770 * acceleration) */ 7771 protected void pageSwapCallback(boolean notifyAnimationStarted) { 7772 if (DebugFlags.MEASURE_PAGE_SWAP_FPS) { 7773 long now = System.currentTimeMillis(); 7774 long diff = now - mLastSwapTime; 7775 mAverageSwapFps = ((1000.0 / diff) + mAverageSwapFps) / 2; 7776 Log.d(LOGTAG, "page swap fps: " + mAverageSwapFps); 7777 mLastSwapTime = now; 7778 } 7779 mWebViewCore.resumeWebKitDraw(); 7780 if (notifyAnimationStarted) { 7781 mWebViewCore.sendMessage(EventHub.NOTIFY_ANIMATION_STARTED); 7782 } 7783 if (mWebView instanceof PageSwapDelegate) { 7784 // This provides a hook for ProfiledWebView to observe the tile page swaps. 7785 ((PageSwapDelegate) mWebView).onPageSwapOccurred(notifyAnimationStarted); 7786 } 7787 7788 if (mPictureListener != null) { 7789 // trigger picture listener for hardware layers. Software layers are 7790 // triggered in setNewPicture 7791 mPictureListener.onNewPicture(getWebView(), capturePicture()); 7792 } 7793 } 7794 7795 void setNewPicture(final WebViewCore.DrawData draw, boolean updateBaseLayer) { 7796 if (mNativeClass == 0) { 7797 if (mDelaySetPicture != null) { 7798 throw new IllegalStateException("Tried to setNewPicture with" 7799 + " a delay picture already set! (memory leak)"); 7800 } 7801 // Not initialized yet, delay set 7802 mDelaySetPicture = draw; 7803 return; 7804 } 7805 WebViewCore.ViewState viewState = draw.mViewState; 7806 boolean isPictureAfterFirstLayout = viewState != null; 7807 7808 if (updateBaseLayer) { 7809 setBaseLayer(draw.mBaseLayer, 7810 getSettings().getShowVisualIndicator(), 7811 isPictureAfterFirstLayout); 7812 } 7813 final Point viewSize = draw.mViewSize; 7814 // We update the layout (i.e. request a layout from the 7815 // view system) if the last view size that we sent to 7816 // WebCore matches the view size of the picture we just 7817 // received in the fixed dimension. 7818 final boolean updateLayout = viewSize.x == mLastWidthSent 7819 && viewSize.y == mLastHeightSent; 7820 // Don't send scroll event for picture coming from webkit, 7821 // since the new picture may cause a scroll event to override 7822 // the saved history scroll position. 7823 mSendScrollEvent = false; 7824 recordNewContentSize(draw.mContentSize.x, 7825 draw.mContentSize.y, updateLayout); 7826 if (isPictureAfterFirstLayout) { 7827 // Reset the last sent data here since dealing with new page. 7828 mLastWidthSent = 0; 7829 mZoomManager.onFirstLayout(draw); 7830 int scrollX = viewState.mShouldStartScrolledRight 7831 ? getContentWidth() : viewState.mScrollX; 7832 int scrollY = viewState.mScrollY; 7833 contentScrollTo(scrollX, scrollY, false); 7834 if (!mDrawHistory) { 7835 // As we are on a new page, hide the keyboard 7836 hideSoftKeyboard(); 7837 } 7838 } 7839 mSendScrollEvent = true; 7840 7841 int functor = 0; 7842 boolean forceInval = isPictureAfterFirstLayout; 7843 ViewRootImpl viewRoot = mWebView.getViewRootImpl(); 7844 if (mWebView.isHardwareAccelerated() && viewRoot != null) { 7845 functor = nativeGetDrawGLFunction(mNativeClass); 7846 if (functor != 0) { 7847 // force an invalidate if functor attach not successful 7848 forceInval |= !viewRoot.attachFunctor(functor); 7849 } 7850 } 7851 7852 if (functor == 0 7853 || forceInval 7854 || mWebView.getLayerType() != View.LAYER_TYPE_NONE) { 7855 // invalidate the screen so that the next repaint will show new content 7856 // TODO: partial invalidate 7857 mWebView.invalidate(); 7858 } 7859 7860 // update the zoom information based on the new picture 7861 if (mZoomManager.onNewPicture(draw)) 7862 invalidate(); 7863 7864 if (isPictureAfterFirstLayout) { 7865 mViewManager.postReadyToDrawAll(); 7866 } 7867 scrollEditWithCursor(); 7868 7869 if (mPictureListener != null) { 7870 if (!mWebView.isHardwareAccelerated() 7871 || mWebView.getLayerType() == View.LAYER_TYPE_SOFTWARE) { 7872 // trigger picture listener for software layers. Hardware layers are 7873 // triggered in pageSwapCallback 7874 mPictureListener.onNewPicture(getWebView(), capturePicture()); 7875 } 7876 } 7877 } 7878 7879 /** 7880 * Used when receiving messages for REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID 7881 * and UPDATE_TEXT_SELECTION_MSG_ID. 7882 */ 7883 private void updateTextSelectionFromMessage(int nodePointer, 7884 int textGeneration, WebViewCore.TextSelectionData data) { 7885 if (textGeneration == mTextGeneration) { 7886 if (mInputConnection != null && mFieldPointer == nodePointer) { 7887 mInputConnection.setSelection(data.mStart, data.mEnd); 7888 } 7889 } 7890 nativeSetTextSelection(mNativeClass, data.mSelectTextPtr); 7891 7892 if ((data.mSelectionReason == TextSelectionData.REASON_ACCESSIBILITY_INJECTOR) 7893 || (!mSelectingText && data.mStart != data.mEnd 7894 && data.mSelectionReason != TextSelectionData.REASON_SELECT_WORD)) { 7895 selectionDone(); 7896 mShowTextSelectionExtra = true; 7897 invalidate(); 7898 return; 7899 } 7900 7901 if (data.mSelectTextPtr != 0 && 7902 (data.mStart != data.mEnd || 7903 (mFieldPointer == nodePointer && mFieldPointer != 0))) { 7904 mIsCaretSelection = (data.mStart == data.mEnd); 7905 if (mIsCaretSelection && 7906 (mInputConnection == null || 7907 mInputConnection.getEditable().length() == 0)) { 7908 // There's no text, don't show caret handle. 7909 selectionDone(); 7910 } else { 7911 if (!mSelectingText) { 7912 setupWebkitSelect(); 7913 } else { 7914 syncSelectionCursors(); 7915 } 7916 if (mIsCaretSelection) { 7917 resetCaretTimer(); 7918 } 7919 } 7920 } else { 7921 selectionDone(); 7922 } 7923 invalidate(); 7924 } 7925 7926 private void scrollEditText(int scrollX, int scrollY) { 7927 // Scrollable edit text. Scroll it. 7928 float maxScrollX = getMaxTextScrollX(); 7929 float scrollPercentX = ((float)scrollX)/maxScrollX; 7930 mEditTextContent.offsetTo(-scrollX, -scrollY); 7931 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SCROLL_TEXT_INPUT, 0, 7932 scrollY, (Float)scrollPercentX); 7933 } 7934 7935 private void beginTextBatch() { 7936 mIsBatchingTextChanges = true; 7937 } 7938 7939 private void commitTextBatch() { 7940 if (mWebViewCore != null) { 7941 mWebViewCore.sendMessages(mBatchedTextChanges); 7942 } 7943 mBatchedTextChanges.clear(); 7944 mIsBatchingTextChanges = false; 7945 } 7946 7947 void sendBatchableInputMessage(int what, int arg1, int arg2, 7948 Object obj) { 7949 if (mWebViewCore == null) { 7950 return; 7951 } 7952 Message message = Message.obtain(null, what, arg1, arg2, obj); 7953 if (mIsBatchingTextChanges) { 7954 mBatchedTextChanges.add(message); 7955 } else { 7956 mWebViewCore.sendMessage(message); 7957 } 7958 } 7959 7960 // Class used to use a dropdown for a <select> element 7961 private class InvokeListBox implements Runnable { 7962 // Whether the listbox allows multiple selection. 7963 private boolean mMultiple; 7964 // Passed in to a list with multiple selection to tell 7965 // which items are selected. 7966 private int[] mSelectedArray; 7967 // Passed in to a list with single selection to tell 7968 // where the initial selection is. 7969 private int mSelection; 7970 7971 private Container[] mContainers; 7972 7973 // Need these to provide stable ids to my ArrayAdapter, 7974 // which normally does not have stable ids. (Bug 1250098) 7975 private class Container extends Object { 7976 /** 7977 * Possible values for mEnabled. Keep in sync with OptionStatus in 7978 * WebViewCore.cpp 7979 */ 7980 final static int OPTGROUP = -1; 7981 final static int OPTION_DISABLED = 0; 7982 final static int OPTION_ENABLED = 1; 7983 7984 String mString; 7985 int mEnabled; 7986 int mId; 7987 7988 @Override 7989 public String toString() { 7990 return mString; 7991 } 7992 } 7993 7994 /** 7995 * Subclass ArrayAdapter so we can disable OptionGroupLabels, 7996 * and allow filtering. 7997 */ 7998 private class MyArrayListAdapter extends ArrayAdapter<Container> { 7999 public MyArrayListAdapter() { 8000 super(WebViewClassic.this.mContext, 8001 mMultiple ? com.android.internal.R.layout.select_dialog_multichoice : 8002 com.android.internal.R.layout.webview_select_singlechoice, 8003 mContainers); 8004 } 8005 8006 @Override 8007 public View getView(int position, View convertView, 8008 ViewGroup parent) { 8009 // Always pass in null so that we will get a new CheckedTextView 8010 // Otherwise, an item which was previously used as an <optgroup> 8011 // element (i.e. has no check), could get used as an <option> 8012 // element, which needs a checkbox/radio, but it would not have 8013 // one. 8014 convertView = super.getView(position, null, parent); 8015 Container c = item(position); 8016 if (c != null && Container.OPTION_ENABLED != c.mEnabled) { 8017 // ListView does not draw dividers between disabled and 8018 // enabled elements. Use a LinearLayout to provide dividers 8019 LinearLayout layout = new LinearLayout(mContext); 8020 layout.setOrientation(LinearLayout.VERTICAL); 8021 if (position > 0) { 8022 View dividerTop = new View(mContext); 8023 dividerTop.setBackgroundResource( 8024 android.R.drawable.divider_horizontal_bright); 8025 layout.addView(dividerTop); 8026 } 8027 8028 if (Container.OPTGROUP == c.mEnabled) { 8029 // Currently select_dialog_multichoice uses CheckedTextViews. 8030 // If that changes, the class cast will no longer be valid. 8031 if (mMultiple) { 8032 Assert.assertTrue(convertView instanceof CheckedTextView); 8033 ((CheckedTextView) convertView).setCheckMarkDrawable(null); 8034 } 8035 } else { 8036 // c.mEnabled == Container.OPTION_DISABLED 8037 // Draw the disabled element in a disabled state. 8038 convertView.setEnabled(false); 8039 } 8040 8041 layout.addView(convertView); 8042 if (position < getCount() - 1) { 8043 View dividerBottom = new View(mContext); 8044 dividerBottom.setBackgroundResource( 8045 android.R.drawable.divider_horizontal_bright); 8046 layout.addView(dividerBottom); 8047 } 8048 return layout; 8049 } 8050 return convertView; 8051 } 8052 8053 @Override 8054 public boolean hasStableIds() { 8055 // AdapterView's onChanged method uses this to determine whether 8056 // to restore the old state. Return false so that the old (out 8057 // of date) state does not replace the new, valid state. 8058 return false; 8059 } 8060 8061 private Container item(int position) { 8062 if (position < 0 || position >= getCount()) { 8063 return null; 8064 } 8065 return getItem(position); 8066 } 8067 8068 @Override 8069 public long getItemId(int position) { 8070 Container item = item(position); 8071 if (item == null) { 8072 return -1; 8073 } 8074 return item.mId; 8075 } 8076 8077 @Override 8078 public boolean areAllItemsEnabled() { 8079 return false; 8080 } 8081 8082 @Override 8083 public boolean isEnabled(int position) { 8084 Container item = item(position); 8085 if (item == null) { 8086 return false; 8087 } 8088 return Container.OPTION_ENABLED == item.mEnabled; 8089 } 8090 } 8091 8092 private InvokeListBox(String[] array, int[] enabled, int[] selected) { 8093 mMultiple = true; 8094 mSelectedArray = selected; 8095 8096 int length = array.length; 8097 mContainers = new Container[length]; 8098 for (int i = 0; i < length; i++) { 8099 mContainers[i] = new Container(); 8100 mContainers[i].mString = array[i]; 8101 mContainers[i].mEnabled = enabled[i]; 8102 mContainers[i].mId = i; 8103 } 8104 } 8105 8106 private InvokeListBox(String[] array, int[] enabled, int selection) { 8107 mSelection = selection; 8108 mMultiple = false; 8109 8110 int length = array.length; 8111 mContainers = new Container[length]; 8112 for (int i = 0; i < length; i++) { 8113 mContainers[i] = new Container(); 8114 mContainers[i].mString = array[i]; 8115 mContainers[i].mEnabled = enabled[i]; 8116 mContainers[i].mId = i; 8117 } 8118 } 8119 8120 /* 8121 * Whenever the data set changes due to filtering, this class ensures 8122 * that the checked item remains checked. 8123 */ 8124 private class SingleDataSetObserver extends DataSetObserver { 8125 private long mCheckedId; 8126 private ListView mListView; 8127 private Adapter mAdapter; 8128 8129 /* 8130 * Create a new observer. 8131 * @param id The ID of the item to keep checked. 8132 * @param l ListView for getting and clearing the checked states 8133 * @param a Adapter for getting the IDs 8134 */ 8135 public SingleDataSetObserver(long id, ListView l, Adapter a) { 8136 mCheckedId = id; 8137 mListView = l; 8138 mAdapter = a; 8139 } 8140 8141 @Override 8142 public void onChanged() { 8143 // The filter may have changed which item is checked. Find the 8144 // item that the ListView thinks is checked. 8145 int position = mListView.getCheckedItemPosition(); 8146 long id = mAdapter.getItemId(position); 8147 if (mCheckedId != id) { 8148 // Clear the ListView's idea of the checked item, since 8149 // it is incorrect 8150 mListView.clearChoices(); 8151 // Search for mCheckedId. If it is in the filtered list, 8152 // mark it as checked 8153 int count = mAdapter.getCount(); 8154 for (int i = 0; i < count; i++) { 8155 if (mAdapter.getItemId(i) == mCheckedId) { 8156 mListView.setItemChecked(i, true); 8157 break; 8158 } 8159 } 8160 } 8161 } 8162 } 8163 8164 @Override 8165 public void run() { 8166 if (mWebViewCore == null 8167 || getWebView().getWindowToken() == null 8168 || getWebView().getViewRootImpl() == null) { 8169 // We've been detached and/or destroyed since this was posted 8170 return; 8171 } 8172 final ListView listView = (ListView) LayoutInflater.from(mContext) 8173 .inflate(com.android.internal.R.layout.select_dialog, null); 8174 final MyArrayListAdapter adapter = new MyArrayListAdapter(); 8175 AlertDialog.Builder b = new AlertDialog.Builder(mContext) 8176 .setView(listView).setCancelable(true) 8177 .setInverseBackgroundForced(true); 8178 8179 if (mMultiple) { 8180 b.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { 8181 @Override 8182 public void onClick(DialogInterface dialog, int which) { 8183 mWebViewCore.sendMessage( 8184 EventHub.LISTBOX_CHOICES, 8185 adapter.getCount(), 0, 8186 listView.getCheckedItemPositions()); 8187 }}); 8188 b.setNegativeButton(android.R.string.cancel, 8189 new DialogInterface.OnClickListener() { 8190 @Override 8191 public void onClick(DialogInterface dialog, int which) { 8192 mWebViewCore.sendMessage( 8193 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 8194 }}); 8195 } 8196 mListBoxDialog = b.create(); 8197 listView.setAdapter(adapter); 8198 listView.setFocusableInTouchMode(true); 8199 // There is a bug (1250103) where the checks in a ListView with 8200 // multiple items selected are associated with the positions, not 8201 // the ids, so the items do not properly retain their checks when 8202 // filtered. Do not allow filtering on multiple lists until 8203 // that bug is fixed. 8204 8205 listView.setTextFilterEnabled(!mMultiple); 8206 if (mMultiple) { 8207 listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 8208 int length = mSelectedArray.length; 8209 for (int i = 0; i < length; i++) { 8210 listView.setItemChecked(mSelectedArray[i], true); 8211 } 8212 } else { 8213 listView.setOnItemClickListener(new OnItemClickListener() { 8214 @Override 8215 public void onItemClick(AdapterView<?> parent, View v, 8216 int position, long id) { 8217 // Rather than sending the message right away, send it 8218 // after the page regains focus. 8219 mListBoxMessage = Message.obtain(null, 8220 EventHub.SINGLE_LISTBOX_CHOICE, (int) id, 0); 8221 if (mListBoxDialog != null) { 8222 mListBoxDialog.dismiss(); 8223 mListBoxDialog = null; 8224 } 8225 } 8226 }); 8227 if (mSelection != -1) { 8228 listView.setSelection(mSelection); 8229 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 8230 listView.setItemChecked(mSelection, true); 8231 DataSetObserver observer = new SingleDataSetObserver( 8232 adapter.getItemId(mSelection), listView, adapter); 8233 adapter.registerDataSetObserver(observer); 8234 } 8235 } 8236 mListBoxDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { 8237 @Override 8238 public void onCancel(DialogInterface dialog) { 8239 mWebViewCore.sendMessage( 8240 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 8241 mListBoxDialog = null; 8242 } 8243 }); 8244 mListBoxDialog.show(); 8245 } 8246 } 8247 8248 private Message mListBoxMessage; 8249 8250 /* 8251 * Request a dropdown menu for a listbox with multiple selection. 8252 * 8253 * @param array Labels for the listbox. 8254 * @param enabledArray State for each element in the list. See static 8255 * integers in Container class. 8256 * @param selectedArray Which positions are initally selected. 8257 */ 8258 void requestListBox(String[] array, int[] enabledArray, int[] 8259 selectedArray) { 8260 mPrivateHandler.post( 8261 new InvokeListBox(array, enabledArray, selectedArray)); 8262 } 8263 8264 /* 8265 * Request a dropdown menu for a listbox with single selection or a single 8266 * <select> element. 8267 * 8268 * @param array Labels for the listbox. 8269 * @param enabledArray State for each element in the list. See static 8270 * integers in Container class. 8271 * @param selection Which position is initally selected. 8272 */ 8273 void requestListBox(String[] array, int[] enabledArray, int selection) { 8274 mPrivateHandler.post( 8275 new InvokeListBox(array, enabledArray, selection)); 8276 } 8277 8278 private int getScaledMaxXScroll() { 8279 int width; 8280 if (mHeightCanMeasure == false) { 8281 width = getViewWidth() / 4; 8282 } else { 8283 Rect visRect = new Rect(); 8284 calcOurVisibleRect(visRect); 8285 width = visRect.width() / 2; 8286 } 8287 // FIXME the divisor should be retrieved from somewhere 8288 return viewToContentX(width); 8289 } 8290 8291 private int getScaledMaxYScroll() { 8292 int height; 8293 if (mHeightCanMeasure == false) { 8294 height = getViewHeight() / 4; 8295 } else { 8296 Rect visRect = new Rect(); 8297 calcOurVisibleRect(visRect); 8298 height = visRect.height() / 2; 8299 } 8300 // FIXME the divisor should be retrieved from somewhere 8301 // the closest thing today is hard-coded into ScrollView.java 8302 // (from ScrollView.java, line 363) int maxJump = height/2; 8303 return Math.round(height * mZoomManager.getInvScale()); 8304 } 8305 8306 /** 8307 * Called by JNI to invalidate view 8308 */ 8309 private void viewInvalidate() { 8310 invalidate(); 8311 } 8312 8313 /** 8314 * Pass the key directly to the page. This assumes that 8315 * nativePageShouldHandleShiftAndArrows() returned true. 8316 */ 8317 private void letPageHandleNavKey(int keyCode, long time, boolean down, int metaState) { 8318 int keyEventAction; 8319 if (down) { 8320 keyEventAction = KeyEvent.ACTION_DOWN; 8321 } else { 8322 keyEventAction = KeyEvent.ACTION_UP; 8323 } 8324 8325 KeyEvent event = new KeyEvent(time, time, keyEventAction, keyCode, 8326 1, (metaState & KeyEvent.META_SHIFT_ON) 8327 | (metaState & KeyEvent.META_ALT_ON) 8328 | (metaState & KeyEvent.META_SYM_ON) 8329 , KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0); 8330 sendKeyEvent(event); 8331 } 8332 8333 private void sendKeyEvent(KeyEvent event) { 8334 int direction = 0; 8335 switch (event.getKeyCode()) { 8336 case KeyEvent.KEYCODE_DPAD_DOWN: 8337 direction = View.FOCUS_DOWN; 8338 break; 8339 case KeyEvent.KEYCODE_DPAD_UP: 8340 direction = View.FOCUS_UP; 8341 break; 8342 case KeyEvent.KEYCODE_DPAD_LEFT: 8343 direction = View.FOCUS_LEFT; 8344 break; 8345 case KeyEvent.KEYCODE_DPAD_RIGHT: 8346 direction = View.FOCUS_RIGHT; 8347 break; 8348 case KeyEvent.KEYCODE_TAB: 8349 direction = event.isShiftPressed() ? View.FOCUS_BACKWARD : View.FOCUS_FORWARD; 8350 break; 8351 } 8352 if (direction != 0 && mWebView.focusSearch(direction) == null) { 8353 // Can't take focus in that direction 8354 direction = 0; 8355 } 8356 int eventHubAction = EventHub.KEY_UP; 8357 if (event.getAction() == KeyEvent.ACTION_DOWN) { 8358 eventHubAction = EventHub.KEY_DOWN; 8359 int sound = keyCodeToSoundsEffect(event.getKeyCode()); 8360 if (sound != 0) { 8361 mWebView.playSoundEffect(sound); 8362 } 8363 } 8364 sendBatchableInputMessage(eventHubAction, direction, 0, event); 8365 } 8366 8367 /** 8368 * See {@link WebView#setBackgroundColor(int)} 8369 */ 8370 @Override 8371 public void setBackgroundColor(int color) { 8372 mBackgroundColor = color; 8373 mWebViewCore.sendMessage(EventHub.SET_BACKGROUND_COLOR, color); 8374 } 8375 8376 /** 8377 * See {@link WebView#debugDump()} 8378 */ 8379 @Override 8380 @Deprecated 8381 public void debugDump() { 8382 } 8383 8384 /** 8385 * Enable the communication b/t the webView and VideoViewProxy 8386 * 8387 * only used by the Browser 8388 */ 8389 public void setHTML5VideoViewProxy(HTML5VideoViewProxy proxy) { 8390 mHTML5VideoViewProxy = proxy; 8391 } 8392 8393 /** 8394 * Set the time to wait between passing touches to WebCore. See also the 8395 * TOUCH_SENT_INTERVAL member for further discussion. 8396 * 8397 * This is only used by the DRT test application. 8398 */ 8399 public void setTouchInterval(int interval) { 8400 mCurrentTouchInterval = interval; 8401 } 8402 8403 /** 8404 * Copy text into the clipboard. This is called indirectly from 8405 * WebViewCore. 8406 * @param text The text to put into the clipboard. 8407 */ 8408 private void copyToClipboard(String text) { 8409 ClipboardManager cm = (ClipboardManager)mContext 8410 .getSystemService(Context.CLIPBOARD_SERVICE); 8411 ClipData clip = ClipData.newPlainText(getTitle(), text); 8412 cm.setPrimaryClip(clip); 8413 } 8414 8415 /*package*/ void autoFillForm(int autoFillQueryId) { 8416 mPrivateHandler.obtainMessage(AUTOFILL_FORM, autoFillQueryId, 0) 8417 .sendToTarget(); 8418 } 8419 8420 /* package */ ViewManager getViewManager() { 8421 return mViewManager; 8422 } 8423 8424 /** send content invalidate */ 8425 protected void contentInvalidateAll() { 8426 if (mWebViewCore != null && !mBlockWebkitViewMessages) { 8427 mWebViewCore.sendMessage(EventHub.CONTENT_INVALIDATE_ALL); 8428 } 8429 } 8430 8431 /** discard all textures from tiles. Used in Profiled WebView */ 8432 public void discardAllTextures() { 8433 nativeDiscardAllTextures(); 8434 } 8435 8436 @Override 8437 public void setLayerType(int layerType, Paint paint) { 8438 updateHwAccelerated(); 8439 } 8440 8441 private void updateHwAccelerated() { 8442 if (mNativeClass == 0) { 8443 return; 8444 } 8445 boolean hwAccelerated = false; 8446 if (mWebView.isHardwareAccelerated() 8447 && mWebView.getLayerType() != View.LAYER_TYPE_SOFTWARE) { 8448 hwAccelerated = true; 8449 } 8450 8451 // result is of type LayerAndroid::InvalidateFlags, non zero means invalidate/redraw 8452 int result = nativeSetHwAccelerated(mNativeClass, hwAccelerated); 8453 if (mWebViewCore != null && !mBlockWebkitViewMessages && result != 0) { 8454 mWebViewCore.contentDraw(); 8455 } 8456 } 8457 8458 /** 8459 * Begin collecting per-tile profiling data 8460 * 8461 * only used by profiling tests 8462 */ 8463 public void tileProfilingStart() { 8464 nativeTileProfilingStart(); 8465 } 8466 /** 8467 * Return per-tile profiling data 8468 * 8469 * only used by profiling tests 8470 */ 8471 public float tileProfilingStop() { 8472 return nativeTileProfilingStop(); 8473 } 8474 8475 /** only used by profiling tests */ 8476 public void tileProfilingClear() { 8477 nativeTileProfilingClear(); 8478 } 8479 /** only used by profiling tests */ 8480 public int tileProfilingNumFrames() { 8481 return nativeTileProfilingNumFrames(); 8482 } 8483 /** only used by profiling tests */ 8484 public int tileProfilingNumTilesInFrame(int frame) { 8485 return nativeTileProfilingNumTilesInFrame(frame); 8486 } 8487 /** only used by profiling tests */ 8488 public int tileProfilingGetInt(int frame, int tile, String key) { 8489 return nativeTileProfilingGetInt(frame, tile, key); 8490 } 8491 /** only used by profiling tests */ 8492 public float tileProfilingGetFloat(int frame, int tile, String key) { 8493 return nativeTileProfilingGetFloat(frame, tile, key); 8494 } 8495 8496 /** 8497 * Checks the focused content for an editable text field. This can be 8498 * text input or ContentEditable. 8499 * @return true if the focused item is an editable text field. 8500 */ 8501 boolean focusCandidateIsEditableText() { 8502 if (mFocusedNode != null) { 8503 return mFocusedNode.mEditable; 8504 } 8505 return false; 8506 } 8507 8508 // Called via JNI 8509 private void postInvalidate() { 8510 mWebView.postInvalidate(); 8511 } 8512 8513 // Note: must be called before first WebViewClassic is created. 8514 public static void setShouldMonitorWebCoreThread() { 8515 WebViewCore.setShouldMonitorWebCoreThread(); 8516 } 8517 8518 private native void nativeCreate(int ptr, String drawableDir, boolean isHighEndGfx); 8519 private native void nativeDebugDump(); 8520 private static native void nativeDestroy(int ptr); 8521 8522 private native void nativeDraw(Canvas canvas, RectF visibleRect, 8523 int color, int extra); 8524 private native void nativeDumpDisplayTree(String urlOrNull); 8525 private native boolean nativeEvaluateLayersAnimations(int nativeInstance); 8526 private native int nativeCreateDrawGLFunction(int nativeInstance, Rect invScreenRect, 8527 Rect screenRect, RectF visibleContentRect, float scale, int extras); 8528 private native int nativeGetDrawGLFunction(int nativeInstance); 8529 private native void nativeUpdateDrawGLFunction(int nativeInstance, Rect invScreenRect, 8530 Rect screenRect, RectF visibleContentRect, float scale); 8531 private native String nativeGetSelection(); 8532 private native void nativeSetHeightCanMeasure(boolean measure); 8533 private native boolean nativeSetBaseLayer(int nativeInstance, 8534 int layer, boolean showVisualIndicator, boolean isPictureAfterFirstLayout, 8535 int scrollingLayer); 8536 private native int nativeGetBaseLayer(int nativeInstance); 8537 private native void nativeCopyBaseContentToPicture(Picture pict); 8538 private native boolean nativeHasContent(); 8539 private native void nativeStopGL(int ptr); 8540 private native void nativeDiscardAllTextures(); 8541 private native void nativeTileProfilingStart(); 8542 private native float nativeTileProfilingStop(); 8543 private native void nativeTileProfilingClear(); 8544 private native int nativeTileProfilingNumFrames(); 8545 private native int nativeTileProfilingNumTilesInFrame(int frame); 8546 private native int nativeTileProfilingGetInt(int frame, int tile, String key); 8547 private native float nativeTileProfilingGetFloat(int frame, int tile, String key); 8548 8549 private native void nativeUseHardwareAccelSkia(boolean enabled); 8550 8551 // Returns a pointer to the scrollable LayerAndroid at the given point. 8552 private native int nativeScrollableLayer(int nativeInstance, int x, int y, Rect scrollRect, 8553 Rect scrollBounds); 8554 /** 8555 * Scroll the specified layer. 8556 * @param nativeInstance Native WebView instance 8557 * @param layer Id of the layer to scroll, as determined by nativeScrollableLayer. 8558 * @param newX Destination x position to which to scroll. 8559 * @param newY Destination y position to which to scroll. 8560 * @return True if the layer is successfully scrolled. 8561 */ 8562 private native boolean nativeScrollLayer(int nativeInstance, int layer, int newX, int newY); 8563 private native void nativeSetIsScrolling(boolean isScrolling); 8564 private native int nativeGetBackgroundColor(int nativeInstance); 8565 native boolean nativeSetProperty(String key, String value); 8566 native String nativeGetProperty(String key); 8567 /** 8568 * See {@link ComponentCallbacks2} for the trim levels and descriptions 8569 */ 8570 private static native void nativeOnTrimMemory(int level); 8571 private static native void nativeSetPauseDrawing(int instance, boolean pause); 8572 private static native void nativeSetTextSelection(int instance, int selection); 8573 private static native int nativeGetHandleLayerId(int instance, int handle, 8574 Point cursorLocation, QuadF textQuad); 8575 private static native void nativeMapLayerRect(int instance, int layerId, 8576 Rect rect); 8577 // Returns 1 if a layer sync is needed, else 0 8578 private static native int nativeSetHwAccelerated(int instance, boolean hwAccelerated); 8579 private static native void nativeFindMaxVisibleRect(int instance, int layerId, 8580 Rect visibleContentRect); 8581 private static native boolean nativeIsHandleLeft(int instance, int handleId); 8582} 8583