WebViewClassic.java revision 0b8413bbeb528c854e28c5ba1550239867da5c2e
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.Message; 61import android.os.SystemClock; 62import android.provider.Settings; 63import android.security.KeyChain; 64import android.speech.tts.TextToSpeech; 65import android.text.Editable; 66import android.text.InputType; 67import android.text.Selection; 68import android.text.TextUtils; 69import android.util.DisplayMetrics; 70import android.util.EventLog; 71import android.util.Log; 72import android.view.Display; 73import android.view.Gravity; 74import android.view.HapticFeedbackConstants; 75import android.view.HardwareCanvas; 76import android.view.InputDevice; 77import android.view.KeyCharacterMap; 78import android.view.KeyEvent; 79import android.view.LayoutInflater; 80import android.view.MotionEvent; 81import android.view.ScaleGestureDetector; 82import android.view.SoundEffectConstants; 83import android.view.VelocityTracker; 84import android.view.View; 85import android.view.View.MeasureSpec; 86import android.view.ViewConfiguration; 87import android.view.ViewGroup; 88import android.view.ViewParent; 89import android.view.ViewTreeObserver; 90import android.view.WindowManager; 91import android.view.accessibility.AccessibilityEvent; 92import android.view.accessibility.AccessibilityManager; 93import android.view.accessibility.AccessibilityNodeInfo; 94import android.view.inputmethod.BaseInputConnection; 95import android.view.inputmethod.EditorInfo; 96import android.view.inputmethod.InputConnection; 97import android.view.inputmethod.InputMethodManager; 98import android.webkit.WebView.HitTestResult; 99import android.webkit.WebView.PictureListener; 100import android.webkit.WebViewCore.DrawData; 101import android.webkit.WebViewCore.EventHub; 102import android.webkit.WebViewCore.TextFieldInitData; 103import android.webkit.WebViewCore.TouchEventData; 104import android.webkit.WebViewCore.TouchHighlightData; 105import android.webkit.WebViewCore.WebKitHitTest; 106import android.widget.AbsoluteLayout; 107import android.widget.Adapter; 108import android.widget.AdapterView; 109import android.widget.AdapterView.OnItemClickListener; 110import android.widget.ArrayAdapter; 111import android.widget.CheckedTextView; 112import android.widget.LinearLayout; 113import android.widget.ListView; 114import android.widget.OverScroller; 115import android.widget.PopupWindow; 116import android.widget.Scroller; 117import android.widget.TextView; 118import android.widget.Toast; 119 120import junit.framework.Assert; 121 122import java.io.File; 123import java.io.FileInputStream; 124import java.io.FileNotFoundException; 125import java.io.FileOutputStream; 126import java.io.IOException; 127import java.io.InputStream; 128import java.io.OutputStream; 129import java.net.URLDecoder; 130import java.util.ArrayList; 131import java.util.HashMap; 132import java.util.HashSet; 133import java.util.List; 134import java.util.Map; 135import java.util.Set; 136import java.util.Vector; 137import java.util.regex.Matcher; 138import java.util.regex.Pattern; 139 140/** 141 * <p>A View that displays web pages. This class is the basis upon which you 142 * can roll your own web browser or simply display some online content within your Activity. 143 * It uses the WebKit rendering engine to display 144 * web pages and includes methods to navigate forward and backward 145 * through a history, zoom in and out, perform text searches and more.</p> 146 * <p>To enable the built-in zoom, set 147 * {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)} 148 * (introduced in API version 3). 149 * <p>Note that, in order for your Activity to access the Internet and load web pages 150 * in a WebView, you must add the {@code INTERNET} permissions to your 151 * Android Manifest file:</p> 152 * <pre><uses-permission android:name="android.permission.INTERNET" /></pre> 153 * 154 * <p>This must be a child of the <a 155 * href="{@docRoot}guide/topics/manifest/manifest-element.html">{@code <manifest>}</a> 156 * element.</p> 157 * 158 * <p>See the <a href="{@docRoot}resources/tutorials/views/hello-webview.html">Web View 159 * tutorial</a>.</p> 160 * 161 * <h3>Basic usage</h3> 162 * 163 * <p>By default, a WebView provides no browser-like widgets, does not 164 * enable JavaScript and web page errors are ignored. If your goal is only 165 * to display some HTML as a part of your UI, this is probably fine; 166 * the user won't need to interact with the web page beyond reading 167 * it, and the web page won't need to interact with the user. If you 168 * actually want a full-blown web browser, then you probably want to 169 * invoke the Browser application with a URL Intent rather than show it 170 * with a WebView. For example: 171 * <pre> 172 * Uri uri = Uri.parse("http://www.example.com"); 173 * Intent intent = new Intent(Intent.ACTION_VIEW, uri); 174 * startActivity(intent); 175 * </pre> 176 * <p>See {@link android.content.Intent} for more information.</p> 177 * 178 * <p>To provide a WebView in your own Activity, include a {@code <WebView>} in your layout, 179 * or set the entire Activity window as a WebView during {@link 180 * android.app.Activity#onCreate(Bundle) onCreate()}:</p> 181 * <pre class="prettyprint"> 182 * WebView webview = new WebView(this); 183 * setContentView(webview); 184 * </pre> 185 * 186 * <p>Then load the desired web page:</p> 187 * <pre> 188 * // Simplest usage: note that an exception will NOT be thrown 189 * // if there is an error loading this page (see below). 190 * webview.loadUrl("http://slashdot.org/"); 191 * 192 * // OR, you can also load from an HTML string: 193 * String summary = "<html><body>You scored <b>192</b> points.</body></html>"; 194 * webview.loadData(summary, "text/html", null); 195 * // ... although note that there are restrictions on what this HTML can do. 196 * // See the JavaDocs for {@link #loadData(String,String,String) loadData()} and {@link 197 * #loadDataWithBaseURL(String,String,String,String,String) loadDataWithBaseURL()} for more info. 198 * </pre> 199 * 200 * <p>A WebView has several customization points where you can add your 201 * own behavior. These are:</p> 202 * 203 * <ul> 204 * <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass. 205 * This class is called when something that might impact a 206 * browser UI happens, for instance, progress updates and 207 * JavaScript alerts are sent here (see <a 208 * href="{@docRoot}guide/developing/debug-tasks.html#DebuggingWebPages">Debugging Tasks</a>). 209 * </li> 210 * <li>Creating and setting a {@link android.webkit.WebViewClient} subclass. 211 * It will be called when things happen that impact the 212 * rendering of the content, eg, errors or form submissions. You 213 * can also intercept URL loading here (via {@link 214 * android.webkit.WebViewClient#shouldOverrideUrlLoading(WebView,String) 215 * shouldOverrideUrlLoading()}).</li> 216 * <li>Modifying the {@link android.webkit.WebSettings}, such as 217 * enabling JavaScript with {@link android.webkit.WebSettings#setJavaScriptEnabled(boolean) 218 * setJavaScriptEnabled()}. </li> 219 * <li>Injecting Java objects into the WebView using the 220 * {@link android.webkit.WebView#addJavascriptInterface} method. This 221 * method allows you to inject Java objects into a page's JavaScript 222 * context, so that they can be accessed by JavaScript in the page.</li> 223 * </ul> 224 * 225 * <p>Here's a more complicated example, showing error handling, 226 * settings, and progress notification:</p> 227 * 228 * <pre class="prettyprint"> 229 * // Let's display the progress in the activity title bar, like the 230 * // browser app does. 231 * getWindow().requestFeature(Window.FEATURE_PROGRESS); 232 * 233 * webview.getSettings().setJavaScriptEnabled(true); 234 * 235 * final Activity activity = this; 236 * webview.setWebChromeClient(new WebChromeClient() { 237 * public void onProgressChanged(WebView view, int progress) { 238 * // Activities and WebViews measure progress with different scales. 239 * // The progress meter will automatically disappear when we reach 100% 240 * activity.setProgress(progress * 1000); 241 * } 242 * }); 243 * webview.setWebViewClient(new WebViewClient() { 244 * public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { 245 * Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); 246 * } 247 * }); 248 * 249 * webview.loadUrl("http://slashdot.org/"); 250 * </pre> 251 * 252 * <h3>Cookie and window management</h3> 253 * 254 * <p>For obvious security reasons, your application has its own 255 * cache, cookie store etc.—it does not share the Browser 256 * application's data. Cookies are managed on a separate thread, so 257 * operations like index building don't block the UI 258 * thread. Follow the instructions in {@link android.webkit.CookieSyncManager} 259 * if you want to use cookies in your application. 260 * </p> 261 * 262 * <p>By default, requests by the HTML to open new windows are 263 * ignored. This is true whether they be opened by JavaScript or by 264 * the target attribute on a link. You can customize your 265 * {@link WebChromeClient} to provide your own behaviour for opening multiple windows, 266 * and render them in whatever manner you want.</p> 267 * 268 * <p>The standard behavior for an Activity is to be destroyed and 269 * recreated when the device orientation or any other configuration changes. This will cause 270 * the WebView to reload the current page. If you don't want that, you 271 * can set your Activity to handle the {@code orientation} and {@code keyboardHidden} 272 * changes, and then just leave the WebView alone. It'll automatically 273 * re-orient itself as appropriate. Read <a 274 * href="{@docRoot}guide/topics/resources/runtime-changes.html">Handling Runtime Changes</a> for 275 * more information about how to handle configuration changes during runtime.</p> 276 * 277 * 278 * <h3>Building web pages to support different screen densities</h3> 279 * 280 * <p>The screen density of a device is based on the screen resolution. A screen with low density 281 * has fewer available pixels per inch, where a screen with high density 282 * has more — sometimes significantly more — pixels per inch. The density of a 283 * screen is important because, other things being equal, a UI element (such as a button) whose 284 * height and width are defined in terms of screen pixels will appear larger on the lower density 285 * screen and smaller on the higher density screen. 286 * For simplicity, Android collapses all actual screen densities into three generalized densities: 287 * high, medium, and low.</p> 288 * <p>By default, WebView scales a web page so that it is drawn at a size that matches the default 289 * appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen 290 * (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels 291 * are bigger). 292 * Starting with API Level 5 (Android 2.0), WebView supports DOM, CSS, and meta tag features to help 293 * you (as a web developer) target screens with different screen densities.</p> 294 * <p>Here's a summary of the features you can use to handle different screen densities:</p> 295 * <ul> 296 * <li>The {@code window.devicePixelRatio} DOM property. The value of this property specifies the 297 * default scaling factor used for the current device. For example, if the value of {@code 298 * window.devicePixelRatio} is "1.0", then the device is considered a medium density (mdpi) device 299 * and default scaling is not applied to the web page; if the value is "1.5", then the device is 300 * considered a high density device (hdpi) and the page content is scaled 1.5x; if the 301 * value is "0.75", then the device is considered a low density device (ldpi) and the content is 302 * scaled 0.75x. However, if you specify the {@code "target-densitydpi"} meta property 303 * (discussed below), then you can stop this default scaling behavior.</li> 304 * <li>The {@code -webkit-device-pixel-ratio} CSS media query. Use this to specify the screen 305 * densities for which this style sheet is to be used. The corresponding value should be either 306 * "0.75", "1", or "1.5", to indicate that the styles are for devices with low density, medium 307 * density, or high density screens, respectively. For example: 308 * <pre> 309 * <link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /></pre> 310 * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5, 311 * which is the high density pixel ratio.</p> 312 * </li> 313 * <li>The {@code target-densitydpi} property for the {@code viewport} meta tag. You can use 314 * this to specify the target density for which the web page is designed, using the following 315 * values: 316 * <ul> 317 * <li>{@code device-dpi} - Use the device's native dpi as the target dpi. Default scaling never 318 * occurs.</li> 319 * <li>{@code high-dpi} - Use hdpi as the target dpi. Medium and low density screens scale down 320 * as appropriate.</li> 321 * <li>{@code medium-dpi} - Use mdpi as the target dpi. High density screens scale up and 322 * low density screens scale down. This is also the default behavior.</li> 323 * <li>{@code low-dpi} - Use ldpi as the target dpi. Medium and high density screens scale up 324 * as appropriate.</li> 325 * <li><em>{@code <value>}</em> - Specify a dpi value to use as the target dpi (accepted 326 * values are 70-400).</li> 327 * </ul> 328 * <p>Here's an example meta tag to specify the target density:</p> 329 * <pre><meta name="viewport" content="target-densitydpi=device-dpi" /></pre></li> 330 * </ul> 331 * <p>If you want to modify your web page for different densities, by using the {@code 332 * -webkit-device-pixel-ratio} CSS media query and/or the {@code 333 * window.devicePixelRatio} DOM property, then you should set the {@code target-densitydpi} meta 334 * property to {@code device-dpi}. This stops Android from performing scaling in your web page and 335 * allows you to make the necessary adjustments for each density via CSS and JavaScript.</p> 336 * 337 * <h3>HTML5 Video support</h3> 338 * 339 * <p>In order to support inline HTML5 video in your application, you need to have hardware 340 * acceleration turned on, and set a {@link android.webkit.WebChromeClient}. For full screen support, 341 * implementations of {@link WebChromeClient#onShowCustomView(View, WebChromeClient.CustomViewCallback)} 342 * and {@link WebChromeClient#onHideCustomView()} are required, 343 * {@link WebChromeClient#getVideoLoadingProgressView()} is optional. 344 * </p> 345 * 346 * @hide 347 */ 348// TODO: Check if any WebView published API methods are called from within here, and if so 349// we should bounce the call out via the proxy to enable any sub-class to override it. 350@Widget 351@SuppressWarnings("deprecation") 352public final class WebViewClassic implements WebViewProvider, WebViewProvider.ScrollDelegate, 353 WebViewProvider.ViewDelegate { 354 private class InnerGlobalLayoutListener implements ViewTreeObserver.OnGlobalLayoutListener { 355 @Override 356 public void onGlobalLayout() { 357 if (mWebView.isShown()) { 358 setGLRectViewport(); 359 } 360 } 361 } 362 363 private class InnerScrollChangedListener implements ViewTreeObserver.OnScrollChangedListener { 364 @Override 365 public void onScrollChanged() { 366 if (mWebView.isShown()) { 367 setGLRectViewport(); 368 } 369 } 370 } 371 372 /** 373 * InputConnection used for ContentEditable. This captures changes 374 * to the text and sends them either as key strokes or text changes. 375 */ 376 class WebViewInputConnection extends BaseInputConnection { 377 // Used for mapping characters to keys typed. 378 private KeyCharacterMap mKeyCharacterMap; 379 private boolean mIsKeySentByMe; 380 private int mInputType; 381 private int mImeOptions; 382 private String mHint; 383 private int mMaxLength; 384 private boolean mIsAutoFillable; 385 private boolean mIsAutoCompleteEnabled; 386 private String mName; 387 private int mBatchLevel; 388 389 public WebViewInputConnection() { 390 super(mWebView, true); 391 } 392 393 public void setAutoFillable(int queryId) { 394 mIsAutoFillable = getSettings().getAutoFillEnabled() 395 && (queryId != WebTextView.FORM_NOT_AUTOFILLABLE); 396 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 397 if (variation != EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD 398 && (mIsAutoFillable || mIsAutoCompleteEnabled)) { 399 if (mName != null && mName.length() > 0) { 400 requestFormData(mName, mFieldPointer, mIsAutoFillable, 401 mIsAutoCompleteEnabled); 402 } 403 } 404 } 405 406 @Override 407 public boolean beginBatchEdit() { 408 if (mBatchLevel == 0) { 409 beginTextBatch(); 410 } 411 mBatchLevel++; 412 return false; 413 } 414 415 @Override 416 public boolean endBatchEdit() { 417 mBatchLevel--; 418 if (mBatchLevel == 0) { 419 commitTextBatch(); 420 } 421 return false; 422 } 423 424 public boolean getIsAutoFillable() { 425 return mIsAutoFillable; 426 } 427 428 @Override 429 public boolean sendKeyEvent(KeyEvent event) { 430 // Some IMEs send key events directly using sendKeyEvents. 431 // WebViewInputConnection should treat these as text changes. 432 if (!mIsKeySentByMe) { 433 if (event.getAction() == KeyEvent.ACTION_UP) { 434 if (event.getKeyCode() == KeyEvent.KEYCODE_DEL) { 435 return deleteSurroundingText(1, 0); 436 } else if (event.getKeyCode() == KeyEvent.KEYCODE_FORWARD_DEL) { 437 return deleteSurroundingText(0, 1); 438 } else if (event.getUnicodeChar() != 0){ 439 String newComposingText = 440 Character.toString((char)event.getUnicodeChar()); 441 return commitText(newComposingText, 1); 442 } 443 } else if (event.getAction() == KeyEvent.ACTION_DOWN && 444 (event.getKeyCode() == KeyEvent.KEYCODE_DEL 445 || event.getKeyCode() == KeyEvent.KEYCODE_FORWARD_DEL 446 || event.getUnicodeChar() != 0)) { 447 return true; // only act on action_down 448 } 449 } 450 return super.sendKeyEvent(event); 451 } 452 453 public void setTextAndKeepSelection(CharSequence text) { 454 Editable editable = getEditable(); 455 int selectionStart = Selection.getSelectionStart(editable); 456 int selectionEnd = Selection.getSelectionEnd(editable); 457 text = limitReplaceTextByMaxLength(text, editable.length()); 458 editable.replace(0, editable.length(), text); 459 restartInput(); 460 // Keep the previous selection. 461 selectionStart = Math.min(selectionStart, editable.length()); 462 selectionEnd = Math.min(selectionEnd, editable.length()); 463 setSelection(selectionStart, selectionEnd); 464 } 465 466 public void replaceSelection(CharSequence text) { 467 Editable editable = getEditable(); 468 int selectionStart = Selection.getSelectionStart(editable); 469 int selectionEnd = Selection.getSelectionEnd(editable); 470 text = limitReplaceTextByMaxLength(text, selectionEnd - selectionStart); 471 setNewText(selectionStart, selectionEnd, text); 472 editable.replace(selectionStart, selectionEnd, text); 473 restartInput(); 474 // Move caret to the end of the new text 475 int newCaret = selectionStart + text.length(); 476 setSelection(newCaret, newCaret); 477 } 478 479 @Override 480 public boolean setComposingText(CharSequence text, int newCursorPosition) { 481 Editable editable = getEditable(); 482 int start = getComposingSpanStart(editable); 483 int end = getComposingSpanEnd(editable); 484 if (start < 0 || end < 0) { 485 start = Selection.getSelectionStart(editable); 486 end = Selection.getSelectionEnd(editable); 487 } 488 if (end < start) { 489 int temp = end; 490 end = start; 491 start = temp; 492 } 493 CharSequence limitedText = limitReplaceTextByMaxLength(text, end - start); 494 setNewText(start, end, limitedText); 495 if (limitedText != text) { 496 newCursorPosition -= text.length() - limitedText.length(); 497 } 498 super.setComposingText(limitedText, newCursorPosition); 499 if (limitedText != text) { 500 restartInput(); 501 int lastCaret = start + limitedText.length(); 502 finishComposingText(); 503 setSelection(lastCaret, lastCaret); 504 } 505 return true; 506 } 507 508 @Override 509 public boolean commitText(CharSequence text, int newCursorPosition) { 510 setComposingText(text, newCursorPosition); 511 int cursorPosition = Selection.getSelectionEnd(getEditable()); 512 setComposingRegion(cursorPosition, cursorPosition); 513 return true; 514 } 515 516 @Override 517 public boolean deleteSurroundingText(int leftLength, int rightLength) { 518 Editable editable = getEditable(); 519 int cursorPosition = Selection.getSelectionEnd(editable); 520 int startDelete = Math.max(0, cursorPosition - leftLength); 521 int endDelete = Math.min(editable.length(), 522 cursorPosition + rightLength); 523 setNewText(startDelete, endDelete, ""); 524 return super.deleteSurroundingText(leftLength, rightLength); 525 } 526 527 @Override 528 public boolean performEditorAction(int editorAction) { 529 530 boolean handled = true; 531 switch (editorAction) { 532 case EditorInfo.IME_ACTION_NEXT: 533 mWebView.requestFocus(View.FOCUS_FORWARD); 534 break; 535 case EditorInfo.IME_ACTION_PREVIOUS: 536 mWebView.requestFocus(View.FOCUS_BACKWARD); 537 break; 538 case EditorInfo.IME_ACTION_DONE: 539 WebViewClassic.this.hideSoftKeyboard(); 540 break; 541 case EditorInfo.IME_ACTION_GO: 542 case EditorInfo.IME_ACTION_SEARCH: 543 WebViewClassic.this.hideSoftKeyboard(); 544 String text = getEditable().toString(); 545 passToJavaScript(text, new KeyEvent(KeyEvent.ACTION_DOWN, 546 KeyEvent.KEYCODE_ENTER)); 547 passToJavaScript(text, new KeyEvent(KeyEvent.ACTION_UP, 548 KeyEvent.KEYCODE_ENTER)); 549 break; 550 551 default: 552 handled = super.performEditorAction(editorAction); 553 break; 554 } 555 556 return handled; 557 } 558 559 public void initEditorInfo(WebViewCore.TextFieldInitData initData) { 560 int type = initData.mType; 561 int inputType = InputType.TYPE_CLASS_TEXT 562 | InputType.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT; 563 int imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI 564 | EditorInfo.IME_FLAG_NO_FULLSCREEN; 565 if (!initData.mIsSpellCheckEnabled) { 566 inputType |= InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS; 567 } 568 if (WebTextView.TEXT_AREA != type) { 569 if (initData.mIsTextFieldNext) { 570 imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 571 } 572 if (initData.mIsTextFieldPrev) { 573 imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 574 } 575 } 576 switch (type) { 577 case WebTextView.NORMAL_TEXT_FIELD: 578 imeOptions |= EditorInfo.IME_ACTION_GO; 579 break; 580 case WebTextView.TEXT_AREA: 581 inputType |= InputType.TYPE_TEXT_FLAG_MULTI_LINE 582 | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES 583 | InputType.TYPE_TEXT_FLAG_AUTO_CORRECT; 584 imeOptions |= EditorInfo.IME_ACTION_NONE; 585 break; 586 case WebTextView.PASSWORD: 587 inputType |= EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 588 imeOptions |= EditorInfo.IME_ACTION_GO; 589 break; 590 case WebTextView.SEARCH: 591 imeOptions |= EditorInfo.IME_ACTION_SEARCH; 592 break; 593 case WebTextView.EMAIL: 594 // inputType needs to be overwritten because of the different text variation. 595 inputType = InputType.TYPE_CLASS_TEXT 596 | InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS; 597 imeOptions |= EditorInfo.IME_ACTION_GO; 598 break; 599 case WebTextView.NUMBER: 600 // inputType needs to be overwritten because of the different class. 601 inputType = InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_NORMAL 602 | InputType.TYPE_NUMBER_FLAG_SIGNED | InputType.TYPE_NUMBER_FLAG_DECIMAL; 603 // Number and telephone do not have both a Tab key and an 604 // action, so set the action to NEXT 605 imeOptions |= EditorInfo.IME_ACTION_NEXT; 606 break; 607 case WebTextView.TELEPHONE: 608 // inputType needs to be overwritten because of the different class. 609 inputType = InputType.TYPE_CLASS_PHONE; 610 imeOptions |= EditorInfo.IME_ACTION_NEXT; 611 break; 612 case WebTextView.URL: 613 // TYPE_TEXT_VARIATION_URI prevents Tab key from showing, so 614 // exclude it for now. 615 imeOptions |= EditorInfo.IME_ACTION_GO; 616 inputType |= InputType.TYPE_TEXT_VARIATION_URI; 617 break; 618 default: 619 imeOptions |= EditorInfo.IME_ACTION_GO; 620 break; 621 } 622 mHint = initData.mLabel; 623 mInputType = inputType; 624 mImeOptions = imeOptions; 625 mMaxLength = initData.mMaxLength; 626 mIsAutoCompleteEnabled = initData.mIsAutoCompleteEnabled; 627 mName = initData.mName; 628 mAutoCompletePopup.clearAdapter(); 629 } 630 631 public void setupEditorInfo(EditorInfo outAttrs) { 632 outAttrs.inputType = mInputType; 633 outAttrs.imeOptions = mImeOptions; 634 outAttrs.hintText = mHint; 635 outAttrs.initialCapsMode = getCursorCapsMode(InputType.TYPE_CLASS_TEXT); 636 } 637 638 /** 639 * Sends a text change to webkit indirectly. If it is a single- 640 * character add or delete, it sends it as a key stroke. If it cannot 641 * be represented as a key stroke, it sends it as a field change. 642 * @param start The start offset (inclusive) of the text being changed. 643 * @param end The end offset (exclusive) of the text being changed. 644 * @param text The new text to replace the changed text. 645 */ 646 private void setNewText(int start, int end, CharSequence text) { 647 mIsKeySentByMe = true; 648 Editable editable = getEditable(); 649 CharSequence original = editable.subSequence(start, end); 650 boolean isCharacterAdd = false; 651 boolean isCharacterDelete = false; 652 int textLength = text.length(); 653 int originalLength = original.length(); 654 if (textLength > originalLength) { 655 isCharacterAdd = (textLength == originalLength + 1) 656 && TextUtils.regionMatches(text, 0, original, 0, 657 originalLength); 658 } else if (originalLength > textLength) { 659 isCharacterDelete = (textLength == originalLength - 1) 660 && TextUtils.regionMatches(text, 0, original, 0, 661 textLength); 662 } 663 if (isCharacterAdd) { 664 sendCharacter(text.charAt(textLength - 1)); 665 } else if (isCharacterDelete) { 666 sendKey(KeyEvent.KEYCODE_DEL); 667 } else if ((textLength != originalLength) || 668 !TextUtils.regionMatches(text, 0, original, 0, 669 textLength)) { 670 // Send a message so that key strokes and text replacement 671 // do not come out of order. 672 Message replaceMessage = mPrivateHandler.obtainMessage( 673 REPLACE_TEXT, start, end, text.toString()); 674 mPrivateHandler.sendMessage(replaceMessage); 675 } 676 if (mAutoCompletePopup != null) { 677 StringBuilder newText = new StringBuilder(); 678 newText.append(editable.subSequence(0, start)); 679 newText.append(text); 680 newText.append(editable.subSequence(end, editable.length())); 681 mAutoCompletePopup.setText(newText.toString()); 682 } 683 mIsKeySentByMe = false; 684 } 685 686 /** 687 * Send a single character to the WebView as a key down and up event. 688 * @param c The character to be sent. 689 */ 690 private void sendCharacter(char c) { 691 if (mKeyCharacterMap == null) { 692 mKeyCharacterMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD); 693 } 694 char[] chars = new char[1]; 695 chars[0] = c; 696 KeyEvent[] events = mKeyCharacterMap.getEvents(chars); 697 if (events != null) { 698 for (KeyEvent event : events) { 699 sendKeyEvent(event); 700 } 701 } else { 702 Message msg = mPrivateHandler.obtainMessage(KEY_PRESS, (int) c, 0); 703 mPrivateHandler.sendMessage(msg); 704 } 705 } 706 707 /** 708 * Send a key event for a specific key code, not a standard 709 * unicode character. 710 * @param keyCode The key code to send. 711 */ 712 private void sendKey(int keyCode) { 713 long eventTime = SystemClock.uptimeMillis(); 714 sendKeyEvent(new KeyEvent(eventTime, eventTime, 715 KeyEvent.ACTION_DOWN, keyCode, 0, 0, 716 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 717 KeyEvent.FLAG_SOFT_KEYBOARD)); 718 sendKeyEvent(new KeyEvent(SystemClock.uptimeMillis(), eventTime, 719 KeyEvent.ACTION_UP, keyCode, 0, 0, 720 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 721 KeyEvent.FLAG_SOFT_KEYBOARD)); 722 } 723 724 private CharSequence limitReplaceTextByMaxLength(CharSequence text, 725 int numReplaced) { 726 if (mMaxLength > 0) { 727 Editable editable = getEditable(); 728 int maxReplace = mMaxLength - editable.length() + numReplaced; 729 if (maxReplace < text.length()) { 730 maxReplace = Math.max(maxReplace, 0); 731 // New length is greater than the maximum. trim it down. 732 text = text.subSequence(0, maxReplace); 733 } 734 } 735 return text; 736 } 737 738 private void restartInput() { 739 InputMethodManager imm = InputMethodManager.peekInstance(); 740 if (imm != null) { 741 // Since the text has changed, do not allow the IME to replace the 742 // existing text as though it were a completion. 743 imm.restartInput(mWebView); 744 } 745 } 746 } 747 748 private class PastePopupWindow extends PopupWindow implements View.OnClickListener { 749 private ViewGroup mContentView; 750 private TextView mPasteTextView; 751 752 public PastePopupWindow() { 753 super(mContext, null, 754 com.android.internal.R.attr.textSelectHandleWindowStyle); 755 setClippingEnabled(true); 756 LinearLayout linearLayout = new LinearLayout(mContext); 757 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 758 mContentView = linearLayout; 759 mContentView.setBackgroundResource( 760 com.android.internal.R.drawable.text_edit_paste_window); 761 762 LayoutInflater inflater = (LayoutInflater)mContext. 763 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 764 765 ViewGroup.LayoutParams wrapContent = new ViewGroup.LayoutParams( 766 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 767 768 mPasteTextView = (TextView) inflater.inflate( 769 com.android.internal.R.layout.text_edit_action_popup_text, null); 770 mPasteTextView.setLayoutParams(wrapContent); 771 mContentView.addView(mPasteTextView); 772 mPasteTextView.setText(com.android.internal.R.string.paste); 773 mPasteTextView.setOnClickListener(this); 774 this.setContentView(mContentView); 775 } 776 777 public void show(Point cursorBottom, Point cursorTop, 778 int windowLeft, int windowTop) { 779 measureContent(); 780 781 int width = mContentView.getMeasuredWidth(); 782 int height = mContentView.getMeasuredHeight(); 783 int y = cursorTop.y - height; 784 int x = cursorTop.x - (width / 2); 785 if (y < windowTop) { 786 // There's not enough room vertically, move it below the 787 // handle. 788 ensureSelectionHandles(); 789 y = cursorBottom.y + mSelectHandleCenter.getIntrinsicHeight(); 790 x = cursorBottom.x - (width / 2); 791 } 792 if (x < windowLeft) { 793 x = windowLeft; 794 } 795 if (!isShowing()) { 796 showAtLocation(mWebView, Gravity.NO_GRAVITY, x, y); 797 } 798 update(x, y, width, height); 799 } 800 801 public void hide() { 802 dismiss(); 803 } 804 805 @Override 806 public void onClick(View view) { 807 pasteFromClipboard(); 808 selectionDone(); 809 } 810 811 protected void measureContent() { 812 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 813 mContentView.measure( 814 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 815 View.MeasureSpec.AT_MOST), 816 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 817 View.MeasureSpec.AT_MOST)); 818 } 819 } 820 821 // The listener to capture global layout change event. 822 private InnerGlobalLayoutListener mGlobalLayoutListener = null; 823 824 // The listener to capture scroll event. 825 private InnerScrollChangedListener mScrollChangedListener = null; 826 827 // if AUTO_REDRAW_HACK is true, then the CALL key will toggle redrawing 828 // the screen all-the-time. Good for profiling our drawing code 829 static private final boolean AUTO_REDRAW_HACK = false; 830 // true means redraw the screen all-the-time. Only with AUTO_REDRAW_HACK 831 private boolean mAutoRedraw; 832 833 // Reference to the AlertDialog displayed by InvokeListBox. 834 // It's used to dismiss the dialog in destroy if not done before. 835 private AlertDialog mListBoxDialog = null; 836 837 static final String LOGTAG = "webview"; 838 839 private ZoomManager mZoomManager; 840 841 private final Rect mGLRectViewport = new Rect(); 842 private final Rect mViewRectViewport = new Rect(); 843 private final RectF mVisibleContentRect = new RectF(); 844 private boolean mGLViewportEmpty = false; 845 WebViewInputConnection mInputConnection = null; 846 private int mFieldPointer; 847 private PastePopupWindow mPasteWindow; 848 private AutoCompletePopup mAutoCompletePopup; 849 Rect mEditTextBounds = new Rect(); 850 Rect mEditTextContent = new Rect(); 851 int mEditTextLayerId; 852 boolean mIsEditingText = false; 853 ArrayList<Message> mBatchedTextChanges = new ArrayList<Message>(); 854 boolean mIsBatchingTextChanges = false; 855 856 private static class OnTrimMemoryListener implements ComponentCallbacks2 { 857 private static OnTrimMemoryListener sInstance = null; 858 859 static void init(Context c) { 860 if (sInstance == null) { 861 sInstance = new OnTrimMemoryListener(c.getApplicationContext()); 862 } 863 } 864 865 private OnTrimMemoryListener(Context c) { 866 c.registerComponentCallbacks(this); 867 } 868 869 @Override 870 public void onConfigurationChanged(Configuration newConfig) { 871 // Ignore 872 } 873 874 @Override 875 public void onLowMemory() { 876 // Ignore 877 } 878 879 @Override 880 public void onTrimMemory(int level) { 881 if (DebugFlags.WEB_VIEW) { 882 Log.d("WebView", "onTrimMemory: " + level); 883 } 884 // When framework reset EGL context during high memory pressure, all 885 // the existing GL resources for the html5 video will be destroyed 886 // at native side. 887 // Here we just need to clean up the Surface Texture which is static. 888 HTML5VideoInline.cleanupSurfaceTexture(); 889 WebViewClassic.nativeOnTrimMemory(level); 890 } 891 892 } 893 894 // A final CallbackProxy shared by WebViewCore and BrowserFrame. 895 private CallbackProxy mCallbackProxy; 896 897 private WebViewDatabase mDatabase; 898 899 // SSL certificate for the main top-level page (if secure) 900 private SslCertificate mCertificate; 901 902 // Native WebView pointer that is 0 until the native object has been 903 // created. 904 private int mNativeClass; 905 // This would be final but it needs to be set to null when the WebView is 906 // destroyed. 907 private WebViewCore mWebViewCore; 908 // Handler for dispatching UI messages. 909 /* package */ final Handler mPrivateHandler = new PrivateHandler(); 910 // Used to ignore changes to webkit text that arrives to the UI side after 911 // more key events. 912 private int mTextGeneration; 913 914 /* package */ void incrementTextGeneration() { mTextGeneration++; } 915 916 // Used by WebViewCore to create child views. 917 /* package */ ViewManager mViewManager; 918 919 // Used to display in full screen mode 920 PluginFullScreenHolder mFullScreenHolder; 921 922 /** 923 * Position of the last touch event in pixels. 924 * Use integer to prevent loss of dragging delta calculation accuracy; 925 * which was done in float and converted to integer, and resulted in gradual 926 * and compounding touch position and view dragging mismatch. 927 */ 928 private int mLastTouchX; 929 private int mLastTouchY; 930 private int mStartTouchX; 931 private int mStartTouchY; 932 private float mAverageAngle; 933 934 /** 935 * Time of the last touch event. 936 */ 937 private long mLastTouchTime; 938 939 /** 940 * Time of the last time sending touch event to WebViewCore 941 */ 942 private long mLastSentTouchTime; 943 944 /** 945 * The minimum elapsed time before sending another ACTION_MOVE event to 946 * WebViewCore. This really should be tuned for each type of the devices. 947 * For example in Google Map api test case, it takes Dream device at least 948 * 150ms to do a full cycle in the WebViewCore by processing a touch event, 949 * triggering the layout and drawing the picture. While the same process 950 * takes 60+ms on the current high speed device. If we make 951 * TOUCH_SENT_INTERVAL too small, there will be multiple touch events sent 952 * to WebViewCore queue and the real layout and draw events will be pushed 953 * to further, which slows down the refresh rate. Choose 50 to favor the 954 * current high speed devices. For Dream like devices, 100 is a better 955 * choice. Maybe make this in the buildspec later. 956 * (Update 12/14/2010: changed to 0 since current device should be able to 957 * handle the raw events and Map team voted to have the raw events too. 958 */ 959 private static final int TOUCH_SENT_INTERVAL = 0; 960 private int mCurrentTouchInterval = TOUCH_SENT_INTERVAL; 961 962 /** 963 * Helper class to get velocity for fling 964 */ 965 VelocityTracker mVelocityTracker; 966 private int mMaximumFling; 967 private float mLastVelocity; 968 private float mLastVelX; 969 private float mLastVelY; 970 971 // The id of the native layer being scrolled. 972 private int mCurrentScrollingLayerId; 973 private Rect mScrollingLayerRect = new Rect(); 974 975 // only trigger accelerated fling if the new velocity is at least 976 // MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION times of the previous velocity 977 private static final float MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION = 0.2f; 978 979 /** 980 * Touch mode 981 */ 982 private int mTouchMode = TOUCH_DONE_MODE; 983 private static final int TOUCH_INIT_MODE = 1; 984 private static final int TOUCH_DRAG_START_MODE = 2; 985 private static final int TOUCH_DRAG_MODE = 3; 986 private static final int TOUCH_SHORTPRESS_START_MODE = 4; 987 private static final int TOUCH_SHORTPRESS_MODE = 5; 988 private static final int TOUCH_DOUBLE_TAP_MODE = 6; 989 private static final int TOUCH_DONE_MODE = 7; 990 private static final int TOUCH_PINCH_DRAG = 8; 991 private static final int TOUCH_DRAG_LAYER_MODE = 9; 992 private static final int TOUCH_DRAG_TEXT_MODE = 10; 993 994 // Whether to forward the touch events to WebCore 995 // Can only be set by WebKit via JNI. 996 private boolean mForwardTouchEvents = false; 997 998 // Whether to prevent default during touch. The initial value depends on 999 // mForwardTouchEvents. If WebCore wants all the touch events, it says yes 1000 // for touch down. Otherwise UI will wait for the answer of the first 1001 // confirmed move before taking over the control. 1002 private static final int PREVENT_DEFAULT_NO = 0; 1003 private static final int PREVENT_DEFAULT_MAYBE_YES = 1; 1004 private static final int PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN = 2; 1005 private static final int PREVENT_DEFAULT_YES = 3; 1006 private static final int PREVENT_DEFAULT_IGNORE = 4; 1007 private int mPreventDefault = PREVENT_DEFAULT_IGNORE; 1008 1009 // true when the touch movement exceeds the slop 1010 private boolean mConfirmMove; 1011 private boolean mTouchInEditText; 1012 1013 // if true, touch events will be first processed by WebCore, if prevent 1014 // default is not set, the UI will continue handle them. 1015 private boolean mDeferTouchProcess; 1016 1017 // to avoid interfering with the current touch events, track them 1018 // separately. Currently no snapping or fling in the deferred process mode 1019 private int mDeferTouchMode = TOUCH_DONE_MODE; 1020 private float mLastDeferTouchX; 1021 private float mLastDeferTouchY; 1022 1023 // Whether or not to draw the cursor ring. 1024 private boolean mDrawCursorRing = true; 1025 1026 // true if onPause has been called (and not onResume) 1027 private boolean mIsPaused; 1028 1029 private HitTestResult mInitialHitTestResult; 1030 private WebKitHitTest mFocusedNode; 1031 1032 /** 1033 * Customizable constant 1034 */ 1035 // pre-computed square of ViewConfiguration.getScaledTouchSlop() 1036 private int mTouchSlopSquare; 1037 // pre-computed square of ViewConfiguration.getScaledDoubleTapSlop() 1038 private int mDoubleTapSlopSquare; 1039 // pre-computed density adjusted navigation slop 1040 private int mNavSlop; 1041 // This should be ViewConfiguration.getTapTimeout() 1042 // But system time out is 100ms, which is too short for the browser. 1043 // In the browser, if it switches out of tap too soon, jump tap won't work. 1044 // In addition, a double tap on a trackpad will always have a duration of 1045 // 300ms, so this value must be at least that (otherwise we will timeout the 1046 // first tap and convert it to a long press). 1047 private static final int TAP_TIMEOUT = 300; 1048 // This should be ViewConfiguration.getLongPressTimeout() 1049 // But system time out is 500ms, which is too short for the browser. 1050 // With a short timeout, it's difficult to treat trigger a short press. 1051 private static final int LONG_PRESS_TIMEOUT = 1000; 1052 // needed to avoid flinging after a pause of no movement 1053 private static final int MIN_FLING_TIME = 250; 1054 // draw unfiltered after drag is held without movement 1055 private static final int MOTIONLESS_TIME = 100; 1056 // The amount of content to overlap between two screens when going through 1057 // pages with the space bar, in pixels. 1058 private static final int PAGE_SCROLL_OVERLAP = 24; 1059 1060 // Time between successive calls to text scroll fling animation 1061 private static final int TEXT_SCROLL_ANIMATION_DELAY_MS = 16; 1062 1063 /** 1064 * These prevent calling requestLayout if either dimension is fixed. This 1065 * depends on the layout parameters and the measure specs. 1066 */ 1067 boolean mWidthCanMeasure; 1068 boolean mHeightCanMeasure; 1069 1070 // Remember the last dimensions we sent to the native side so we can avoid 1071 // sending the same dimensions more than once. 1072 int mLastWidthSent; 1073 int mLastHeightSent; 1074 // Since view height sent to webkit could be fixed to avoid relayout, this 1075 // value records the last sent actual view height. 1076 int mLastActualHeightSent; 1077 1078 private int mContentWidth; // cache of value from WebViewCore 1079 private int mContentHeight; // cache of value from WebViewCore 1080 1081 // Need to have the separate control for horizontal and vertical scrollbar 1082 // style than the View's single scrollbar style 1083 private boolean mOverlayHorizontalScrollbar = true; 1084 private boolean mOverlayVerticalScrollbar = false; 1085 1086 // our standard speed. this way small distances will be traversed in less 1087 // time than large distances, but we cap the duration, so that very large 1088 // distances won't take too long to get there. 1089 private static final int STD_SPEED = 480; // pixels per second 1090 // time for the longest scroll animation 1091 private static final int MAX_DURATION = 750; // milliseconds 1092 private static final int SLIDE_TITLE_DURATION = 500; // milliseconds 1093 1094 // Used by OverScrollGlow 1095 OverScroller mScroller; 1096 Scroller mEditTextScroller; 1097 1098 private boolean mInOverScrollMode = false; 1099 private static Paint mOverScrollBackground; 1100 private static Paint mOverScrollBorder; 1101 1102 private boolean mWrapContent; 1103 private static final int MOTIONLESS_FALSE = 0; 1104 private static final int MOTIONLESS_PENDING = 1; 1105 private static final int MOTIONLESS_TRUE = 2; 1106 private static final int MOTIONLESS_IGNORE = 3; 1107 private int mHeldMotionless; 1108 1109 // An instance for injecting accessibility in WebViews with disabled 1110 // JavaScript or ones for which no accessibility script exists 1111 private AccessibilityInjector mAccessibilityInjector; 1112 1113 // flag indicating if accessibility script is injected so we 1114 // know to handle Shift and arrows natively first 1115 private boolean mAccessibilityScriptInjected; 1116 1117 1118 /** 1119 * How long the caret handle will last without being touched. 1120 */ 1121 private static final long CARET_HANDLE_STAMINA_MS = 3000; 1122 1123 private Drawable mSelectHandleLeft; 1124 private Drawable mSelectHandleRight; 1125 private Drawable mSelectHandleCenter; 1126 private Point mSelectHandleLeftOffset; 1127 private Point mSelectHandleRightOffset; 1128 private Point mSelectHandleCenterOffset; 1129 private Point mSelectCursorBase = new Point(); 1130 private int mSelectCursorBaseLayerId; 1131 private QuadF mSelectCursorBaseTextQuad = new QuadF(); 1132 private Point mSelectCursorExtent = new Point(); 1133 private int mSelectCursorExtentLayerId; 1134 private QuadF mSelectCursorExtentTextQuad = new QuadF(); 1135 private Point mSelectDraggingCursor; 1136 private Point mSelectDraggingOffset; 1137 private QuadF mSelectDraggingTextQuad; 1138 private boolean mIsCaretSelection; 1139 static final int HANDLE_ID_START = 0; 1140 static final int HANDLE_ID_END = 1; 1141 static final int HANDLE_ID_BASE = 2; 1142 static final int HANDLE_ID_EXTENT = 3; 1143 1144 // the color used to highlight the touch rectangles 1145 static final int HIGHLIGHT_COLOR = 0x6633b5e5; 1146 // the region indicating where the user touched on the screen 1147 private Region mTouchHighlightRegion = new Region(); 1148 // the paint for the touch highlight 1149 private Paint mTouchHightlightPaint = new Paint(); 1150 // debug only 1151 private static final boolean DEBUG_TOUCH_HIGHLIGHT = true; 1152 private static final int TOUCH_HIGHLIGHT_ELAPSE_TIME = 2000; 1153 private Paint mTouchCrossHairColor; 1154 private int mTouchHighlightX; 1155 private int mTouchHighlightY; 1156 private long mTouchHighlightRequested; 1157 1158 // Basically this proxy is used to tell the Video to update layer tree at 1159 // SetBaseLayer time and to pause when WebView paused. 1160 private HTML5VideoViewProxy mHTML5VideoViewProxy; 1161 1162 // If we are using a set picture, don't send view updates to webkit 1163 private boolean mBlockWebkitViewMessages = false; 1164 1165 // cached value used to determine if we need to switch drawing models 1166 private boolean mHardwareAccelSkia = false; 1167 1168 /* 1169 * Private message ids 1170 */ 1171 private static final int REMEMBER_PASSWORD = 1; 1172 private static final int NEVER_REMEMBER_PASSWORD = 2; 1173 private static final int SWITCH_TO_SHORTPRESS = 3; 1174 private static final int SWITCH_TO_LONGPRESS = 4; 1175 private static final int RELEASE_SINGLE_TAP = 5; 1176 private static final int REQUEST_FORM_DATA = 6; 1177 private static final int DRAG_HELD_MOTIONLESS = 8; 1178 private static final int AWAKEN_SCROLL_BARS = 9; 1179 private static final int PREVENT_DEFAULT_TIMEOUT = 10; 1180 private static final int SCROLL_SELECT_TEXT = 11; 1181 1182 1183 private static final int FIRST_PRIVATE_MSG_ID = REMEMBER_PASSWORD; 1184 private static final int LAST_PRIVATE_MSG_ID = SCROLL_SELECT_TEXT; 1185 1186 /* 1187 * Package message ids 1188 */ 1189 static final int SCROLL_TO_MSG_ID = 101; 1190 static final int NEW_PICTURE_MSG_ID = 105; 1191 static final int WEBCORE_INITIALIZED_MSG_ID = 107; 1192 static final int UPDATE_TEXTFIELD_TEXT_MSG_ID = 108; 1193 static final int UPDATE_ZOOM_RANGE = 109; 1194 static final int TAKE_FOCUS = 110; 1195 static final int CLEAR_TEXT_ENTRY = 111; 1196 static final int UPDATE_TEXT_SELECTION_MSG_ID = 112; 1197 static final int SHOW_RECT_MSG_ID = 113; 1198 static final int LONG_PRESS_CENTER = 114; 1199 static final int PREVENT_TOUCH_ID = 115; 1200 static final int WEBCORE_NEED_TOUCH_EVENTS = 116; 1201 // obj=Rect in doc coordinates 1202 static final int INVAL_RECT_MSG_ID = 117; 1203 static final int REQUEST_KEYBOARD = 118; 1204 static final int SHOW_FULLSCREEN = 120; 1205 static final int HIDE_FULLSCREEN = 121; 1206 static final int REPLACE_BASE_CONTENT = 123; 1207 static final int FORM_DID_BLUR = 124; 1208 static final int UPDATE_MATCH_COUNT = 126; 1209 static final int CENTER_FIT_RECT = 127; 1210 static final int REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID = 128; 1211 static final int SET_SCROLLBAR_MODES = 129; 1212 static final int SELECTION_STRING_CHANGED = 130; 1213 static final int HIT_TEST_RESULT = 131; 1214 static final int SAVE_WEBARCHIVE_FINISHED = 132; 1215 1216 static final int SET_AUTOFILLABLE = 133; 1217 static final int AUTOFILL_COMPLETE = 134; 1218 1219 static final int SCREEN_ON = 136; 1220 static final int ENTER_FULLSCREEN_VIDEO = 137; 1221 static final int UPDATE_ZOOM_DENSITY = 139; 1222 static final int EXIT_FULLSCREEN_VIDEO = 140; 1223 1224 static final int COPY_TO_CLIPBOARD = 141; 1225 static final int INIT_EDIT_FIELD = 142; 1226 static final int REPLACE_TEXT = 143; 1227 static final int CLEAR_CARET_HANDLE = 144; 1228 static final int KEY_PRESS = 145; 1229 static final int RELOCATE_AUTO_COMPLETE_POPUP = 146; 1230 static final int FOCUS_NODE_CHANGED = 147; 1231 static final int AUTOFILL_FORM = 148; 1232 static final int ANIMATE_TEXT_SCROLL = 149; 1233 static final int EDIT_TEXT_SIZE_CHANGED = 150; 1234 static final int SHOW_CARET_HANDLE = 151; 1235 1236 private static final int FIRST_PACKAGE_MSG_ID = SCROLL_TO_MSG_ID; 1237 private static final int LAST_PACKAGE_MSG_ID = HIT_TEST_RESULT; 1238 1239 static final String[] HandlerPrivateDebugString = { 1240 "REMEMBER_PASSWORD", // = 1; 1241 "NEVER_REMEMBER_PASSWORD", // = 2; 1242 "SWITCH_TO_SHORTPRESS", // = 3; 1243 "SWITCH_TO_LONGPRESS", // = 4; 1244 "RELEASE_SINGLE_TAP", // = 5; 1245 "REQUEST_FORM_DATA", // = 6; 1246 "RESUME_WEBCORE_PRIORITY", // = 7; 1247 "DRAG_HELD_MOTIONLESS", // = 8; 1248 "AWAKEN_SCROLL_BARS", // = 9; 1249 "PREVENT_DEFAULT_TIMEOUT", // = 10; 1250 "SCROLL_SELECT_TEXT" // = 11; 1251 }; 1252 1253 static final String[] HandlerPackageDebugString = { 1254 "SCROLL_TO_MSG_ID", // = 101; 1255 "102", // = 102; 1256 "103", // = 103; 1257 "104", // = 104; 1258 "NEW_PICTURE_MSG_ID", // = 105; 1259 "UPDATE_TEXT_ENTRY_MSG_ID", // = 106; 1260 "WEBCORE_INITIALIZED_MSG_ID", // = 107; 1261 "UPDATE_TEXTFIELD_TEXT_MSG_ID", // = 108; 1262 "UPDATE_ZOOM_RANGE", // = 109; 1263 "UNHANDLED_NAV_KEY", // = 110; 1264 "CLEAR_TEXT_ENTRY", // = 111; 1265 "UPDATE_TEXT_SELECTION_MSG_ID", // = 112; 1266 "SHOW_RECT_MSG_ID", // = 113; 1267 "LONG_PRESS_CENTER", // = 114; 1268 "PREVENT_TOUCH_ID", // = 115; 1269 "WEBCORE_NEED_TOUCH_EVENTS", // = 116; 1270 "INVAL_RECT_MSG_ID", // = 117; 1271 "REQUEST_KEYBOARD", // = 118; 1272 "DO_MOTION_UP", // = 119; 1273 "SHOW_FULLSCREEN", // = 120; 1274 "HIDE_FULLSCREEN", // = 121; 1275 "DOM_FOCUS_CHANGED", // = 122; 1276 "REPLACE_BASE_CONTENT", // = 123; 1277 "FORM_DID_BLUR", // = 124; 1278 "RETURN_LABEL", // = 125; 1279 "UPDATE_MATCH_COUNT", // = 126; 1280 "CENTER_FIT_RECT", // = 127; 1281 "REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID", // = 128; 1282 "SET_SCROLLBAR_MODES", // = 129; 1283 "SELECTION_STRING_CHANGED", // = 130; 1284 "SET_TOUCH_HIGHLIGHT_RECTS", // = 131; 1285 "SAVE_WEBARCHIVE_FINISHED", // = 132; 1286 "SET_AUTOFILLABLE", // = 133; 1287 "AUTOFILL_COMPLETE", // = 134; 1288 "SELECT_AT", // = 135; 1289 "SCREEN_ON", // = 136; 1290 "ENTER_FULLSCREEN_VIDEO", // = 137; 1291 "UPDATE_SELECTION", // = 138; 1292 "UPDATE_ZOOM_DENSITY" // = 139; 1293 }; 1294 1295 // If the site doesn't use the viewport meta tag to specify the viewport, 1296 // use DEFAULT_VIEWPORT_WIDTH as the default viewport width 1297 static final int DEFAULT_VIEWPORT_WIDTH = 980; 1298 1299 // normally we try to fit the content to the minimum preferred width 1300 // calculated by the Webkit. To avoid the bad behavior when some site's 1301 // minimum preferred width keeps growing when changing the viewport width or 1302 // the minimum preferred width is huge, an upper limit is needed. 1303 static int sMaxViewportWidth = DEFAULT_VIEWPORT_WIDTH; 1304 1305 // initial scale in percent. 0 means using default. 1306 private int mInitialScaleInPercent = 0; 1307 1308 // Whether or not a scroll event should be sent to webkit. This is only set 1309 // to false when restoring the scroll position. 1310 private boolean mSendScrollEvent = true; 1311 1312 private int mSnapScrollMode = SNAP_NONE; 1313 private static final int SNAP_NONE = 0; 1314 private static final int SNAP_LOCK = 1; // not a separate state 1315 private static final int SNAP_X = 2; // may be combined with SNAP_LOCK 1316 private static final int SNAP_Y = 4; // may be combined with SNAP_LOCK 1317 private boolean mSnapPositive; 1318 1319 // keep these in sync with their counterparts in WebView.cpp 1320 private static final int DRAW_EXTRAS_NONE = 0; 1321 private static final int DRAW_EXTRAS_SELECTION = 1; 1322 private static final int DRAW_EXTRAS_CURSOR_RING = 2; 1323 1324 // keep this in sync with WebCore:ScrollbarMode in WebKit 1325 private static final int SCROLLBAR_AUTO = 0; 1326 private static final int SCROLLBAR_ALWAYSOFF = 1; 1327 // as we auto fade scrollbar, this is ignored. 1328 private static final int SCROLLBAR_ALWAYSON = 2; 1329 private int mHorizontalScrollBarMode = SCROLLBAR_AUTO; 1330 private int mVerticalScrollBarMode = SCROLLBAR_AUTO; 1331 1332 // constants for determining script injection strategy 1333 private static final int ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED = -1; 1334 private static final int ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT = 0; 1335 private static final int ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED = 1; 1336 1337 // the alias via which accessibility JavaScript interface is exposed 1338 private static final String ALIAS_ACCESSIBILITY_JS_INTERFACE = "accessibility"; 1339 1340 // Template for JavaScript that injects a screen-reader. 1341 private static final String ACCESSIBILITY_SCREEN_READER_JAVASCRIPT_TEMPLATE = 1342 "javascript:(function() {" + 1343 " var chooser = document.createElement('script');" + 1344 " chooser.type = 'text/javascript';" + 1345 " chooser.src = '%1s';" + 1346 " document.getElementsByTagName('head')[0].appendChild(chooser);" + 1347 " })();"; 1348 1349 // Regular expression that matches the "axs" URL parameter. 1350 // The value of 0 means the accessibility script is opted out 1351 // The value of 1 means the accessibility script is already injected 1352 private static final String PATTERN_MATCH_AXS_URL_PARAMETER = "(\\?axs=(0|1))|(&axs=(0|1))"; 1353 1354 // TextToSpeech instance exposed to JavaScript to the injected screenreader. 1355 private TextToSpeech mTextToSpeech; 1356 1357 // variable to cache the above pattern in case accessibility is enabled. 1358 private Pattern mMatchAxsUrlParameterPattern; 1359 1360 /** 1361 * Max distance to overscroll by in pixels. 1362 * This how far content can be pulled beyond its normal bounds by the user. 1363 */ 1364 private int mOverscrollDistance; 1365 1366 /** 1367 * Max distance to overfling by in pixels. 1368 * This is how far flinged content can move beyond the end of its normal bounds. 1369 */ 1370 private int mOverflingDistance; 1371 1372 private OverScrollGlow mOverScrollGlow; 1373 1374 // Used to match key downs and key ups 1375 private Vector<Integer> mKeysPressed; 1376 1377 /* package */ static boolean mLogEvent = true; 1378 1379 // for event log 1380 private long mLastTouchUpTime = 0; 1381 1382 private WebViewCore.AutoFillData mAutoFillData; 1383 1384 private static boolean sNotificationsEnabled = true; 1385 1386 /** 1387 * URI scheme for telephone number 1388 */ 1389 public static final String SCHEME_TEL = "tel:"; 1390 /** 1391 * URI scheme for email address 1392 */ 1393 public static final String SCHEME_MAILTO = "mailto:"; 1394 /** 1395 * URI scheme for map address 1396 */ 1397 public static final String SCHEME_GEO = "geo:0,0?q="; 1398 1399 private int mBackgroundColor = Color.WHITE; 1400 1401 private static final long SELECT_SCROLL_INTERVAL = 1000 / 60; // 60 / second 1402 private int mAutoScrollX = 0; 1403 private int mAutoScrollY = 0; 1404 private int mMinAutoScrollX = 0; 1405 private int mMaxAutoScrollX = 0; 1406 private int mMinAutoScrollY = 0; 1407 private int mMaxAutoScrollY = 0; 1408 private Rect mScrollingLayerBounds = new Rect(); 1409 private boolean mSentAutoScrollMessage = false; 1410 1411 // used for serializing asynchronously handled touch events. 1412 private final TouchEventQueue mTouchEventQueue = new TouchEventQueue(); 1413 1414 // Used to track whether picture updating was paused due to a window focus change. 1415 private boolean mPictureUpdatePausedForFocusChange = false; 1416 1417 // Used to notify listeners of a new picture. 1418 private PictureListener mPictureListener; 1419 1420 // Used to notify listeners about find-on-page results. 1421 private WebView.FindListener mFindListener; 1422 1423 // Used to prevent resending save password message 1424 private Message mResumeMsg; 1425 1426 /** 1427 * Refer to {@link WebView#requestFocusNodeHref(Message)} for more information 1428 */ 1429 static class FocusNodeHref { 1430 static final String TITLE = "title"; 1431 static final String URL = "url"; 1432 static final String SRC = "src"; 1433 } 1434 1435 public WebViewClassic(WebView webView, WebView.PrivateAccess privateAccess) { 1436 mWebView = webView; 1437 mWebViewPrivate = privateAccess; 1438 mContext = webView.getContext(); 1439 } 1440 1441 /** 1442 * See {@link WebViewProvider#init(Map, boolean)} 1443 */ 1444 @Override 1445 public void init(Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { 1446 Context context = mContext; 1447 1448 // Used by the chrome stack to find application paths 1449 JniUtil.setContext(context); 1450 1451 mCallbackProxy = new CallbackProxy(context, this); 1452 mViewManager = new ViewManager(this); 1453 L10nUtils.setApplicationContext(context.getApplicationContext()); 1454 mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javaScriptInterfaces); 1455 mDatabase = WebViewDatabase.getInstance(context); 1456 mScroller = new OverScroller(context, null, 0, 0, false); //TODO Use OverScroller's flywheel 1457 mZoomManager = new ZoomManager(this, mCallbackProxy); 1458 1459 /* The init method must follow the creation of certain member variables, 1460 * such as the mZoomManager. 1461 */ 1462 init(); 1463 setupPackageListener(context); 1464 setupProxyListener(context); 1465 setupTrustStorageListener(context); 1466 updateMultiTouchSupport(context); 1467 1468 if (privateBrowsing) { 1469 startPrivateBrowsing(); 1470 } 1471 1472 mAutoFillData = new WebViewCore.AutoFillData(); 1473 mEditTextScroller = new Scroller(context); 1474 } 1475 1476 // WebViewProvider bindings 1477 1478 static class Factory implements WebViewFactoryProvider, WebViewFactoryProvider.Statics { 1479 @Override 1480 public WebViewProvider createWebView(WebView webView, WebView.PrivateAccess privateAccess) { 1481 return new WebViewClassic(webView, privateAccess); 1482 } 1483 1484 @Override 1485 public Statics getStatics() { return this; } 1486 1487 @Override 1488 public String findAddress(String addr) { 1489 return WebViewClassic.findAddress(addr); 1490 } 1491 @Override 1492 public void setPlatformNotificationsEnabled(boolean enable) { 1493 if (enable) { 1494 WebViewClassic.enablePlatformNotifications(); 1495 } else { 1496 WebViewClassic.disablePlatformNotifications(); 1497 } 1498 } 1499 1500 } 1501 1502 // The webview that is bound to this WebViewClassic instance. Primarily needed for supplying 1503 // as the first param in the WebViewClient and WebChromeClient callbacks. 1504 final private WebView mWebView; 1505 // Callback interface, provides priviledged access into the WebView instance. 1506 final private WebView.PrivateAccess mWebViewPrivate; 1507 // Cached reference to mWebView.getContext(), for convenience. 1508 final private Context mContext; 1509 1510 /** 1511 * @return The webview proxy that this classic webview is bound to. 1512 */ 1513 public WebView getWebView() { 1514 return mWebView; 1515 } 1516 1517 @Override 1518 public ViewDelegate getViewDelegate() { 1519 return this; 1520 } 1521 1522 @Override 1523 public ScrollDelegate getScrollDelegate() { 1524 return this; 1525 } 1526 1527 public static WebViewClassic fromWebView(WebView webView) { 1528 return webView == null ? null : (WebViewClassic) webView.getWebViewProvider(); 1529 } 1530 1531 // Accessors, purely for convenience (and to reduce code churn during webview proxy migration). 1532 int getScrollX() { 1533 return mWebView.getScrollX(); 1534 } 1535 1536 int getScrollY() { 1537 return mWebView.getScrollY(); 1538 } 1539 1540 int getWidth() { 1541 return mWebView.getWidth(); 1542 } 1543 1544 int getHeight() { 1545 return mWebView.getHeight(); 1546 } 1547 1548 Context getContext() { 1549 return mContext; 1550 } 1551 1552 void invalidate() { 1553 mWebView.invalidate(); 1554 } 1555 1556 // Setters for the Scroll X & Y, without invoking the onScrollChanged etc code paths. 1557 void setScrollXRaw(int mScrollX) { 1558 mWebViewPrivate.setScrollXRaw(mScrollX); 1559 } 1560 1561 void setScrollYRaw(int mScrollY) { 1562 mWebViewPrivate.setScrollYRaw(mScrollY); 1563 } 1564 1565 private static class TrustStorageListener extends BroadcastReceiver { 1566 @Override 1567 public void onReceive(Context context, Intent intent) { 1568 if (intent.getAction().equals(KeyChain.ACTION_STORAGE_CHANGED)) { 1569 handleCertTrustChanged(); 1570 } 1571 } 1572 } 1573 private static TrustStorageListener sTrustStorageListener; 1574 1575 /** 1576 * Handles update to the trust storage. 1577 */ 1578 private static void handleCertTrustChanged() { 1579 // send a message for indicating trust storage change 1580 WebViewCore.sendStaticMessage(EventHub.TRUST_STORAGE_UPDATED, null); 1581 } 1582 1583 /* 1584 * @param context This method expects this to be a valid context. 1585 */ 1586 private static void setupTrustStorageListener(Context context) { 1587 if (sTrustStorageListener != null ) { 1588 return; 1589 } 1590 IntentFilter filter = new IntentFilter(); 1591 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1592 sTrustStorageListener = new TrustStorageListener(); 1593 Intent current = 1594 context.getApplicationContext().registerReceiver(sTrustStorageListener, filter); 1595 if (current != null) { 1596 handleCertTrustChanged(); 1597 } 1598 } 1599 1600 private static class ProxyReceiver extends BroadcastReceiver { 1601 @Override 1602 public void onReceive(Context context, Intent intent) { 1603 if (intent.getAction().equals(Proxy.PROXY_CHANGE_ACTION)) { 1604 handleProxyBroadcast(intent); 1605 } 1606 } 1607 } 1608 1609 /* 1610 * Receiver for PROXY_CHANGE_ACTION, will be null when it is not added handling broadcasts. 1611 */ 1612 private static ProxyReceiver sProxyReceiver; 1613 1614 /* 1615 * @param context This method expects this to be a valid context 1616 */ 1617 private static synchronized void setupProxyListener(Context context) { 1618 if (sProxyReceiver != null || sNotificationsEnabled == false) { 1619 return; 1620 } 1621 IntentFilter filter = new IntentFilter(); 1622 filter.addAction(Proxy.PROXY_CHANGE_ACTION); 1623 sProxyReceiver = new ProxyReceiver(); 1624 Intent currentProxy = context.getApplicationContext().registerReceiver( 1625 sProxyReceiver, filter); 1626 if (currentProxy != null) { 1627 handleProxyBroadcast(currentProxy); 1628 } 1629 } 1630 1631 /* 1632 * @param context This method expects this to be a valid context 1633 */ 1634 private static synchronized void disableProxyListener(Context context) { 1635 if (sProxyReceiver == null) 1636 return; 1637 1638 context.getApplicationContext().unregisterReceiver(sProxyReceiver); 1639 sProxyReceiver = null; 1640 } 1641 1642 private static void handleProxyBroadcast(Intent intent) { 1643 ProxyProperties proxyProperties = (ProxyProperties)intent.getExtra(Proxy.EXTRA_PROXY_INFO); 1644 if (proxyProperties == null || proxyProperties.getHost() == null) { 1645 WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, null); 1646 return; 1647 } 1648 WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, proxyProperties); 1649 } 1650 1651 /* 1652 * A variable to track if there is a receiver added for ACTION_PACKAGE_ADDED 1653 * or ACTION_PACKAGE_REMOVED. 1654 */ 1655 private static boolean sPackageInstallationReceiverAdded = false; 1656 1657 /* 1658 * A set of Google packages we monitor for the 1659 * navigator.isApplicationInstalled() API. Add additional packages as 1660 * needed. 1661 */ 1662 private static Set<String> sGoogleApps; 1663 static { 1664 sGoogleApps = new HashSet<String>(); 1665 sGoogleApps.add("com.google.android.youtube"); 1666 } 1667 1668 private static class PackageListener extends BroadcastReceiver { 1669 @Override 1670 public void onReceive(Context context, Intent intent) { 1671 final String action = intent.getAction(); 1672 final String packageName = intent.getData().getSchemeSpecificPart(); 1673 final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 1674 if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) { 1675 // if it is replacing, refreshPlugins() when adding 1676 return; 1677 } 1678 1679 if (sGoogleApps.contains(packageName)) { 1680 if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1681 WebViewCore.sendStaticMessage(EventHub.ADD_PACKAGE_NAME, packageName); 1682 } else { 1683 WebViewCore.sendStaticMessage(EventHub.REMOVE_PACKAGE_NAME, packageName); 1684 } 1685 } 1686 1687 PluginManager pm = PluginManager.getInstance(context); 1688 if (pm.containsPluginPermissionAndSignatures(packageName)) { 1689 pm.refreshPlugins(Intent.ACTION_PACKAGE_ADDED.equals(action)); 1690 } 1691 } 1692 } 1693 1694 private void setupPackageListener(Context context) { 1695 1696 /* 1697 * we must synchronize the instance check and the creation of the 1698 * receiver to ensure that only ONE receiver exists for all WebView 1699 * instances. 1700 */ 1701 synchronized (WebViewClassic.class) { 1702 1703 // if the receiver already exists then we do not need to register it 1704 // again 1705 if (sPackageInstallationReceiverAdded) { 1706 return; 1707 } 1708 1709 IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); 1710 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1711 filter.addDataScheme("package"); 1712 BroadcastReceiver packageListener = new PackageListener(); 1713 context.getApplicationContext().registerReceiver(packageListener, filter); 1714 sPackageInstallationReceiverAdded = true; 1715 } 1716 1717 // check if any of the monitored apps are already installed 1718 AsyncTask<Void, Void, Set<String>> task = new AsyncTask<Void, Void, Set<String>>() { 1719 1720 @Override 1721 protected Set<String> doInBackground(Void... unused) { 1722 Set<String> installedPackages = new HashSet<String>(); 1723 PackageManager pm = mContext.getPackageManager(); 1724 for (String name : sGoogleApps) { 1725 try { 1726 pm.getPackageInfo(name, 1727 PackageManager.GET_ACTIVITIES | PackageManager.GET_SERVICES); 1728 installedPackages.add(name); 1729 } catch (PackageManager.NameNotFoundException e) { 1730 // package not found 1731 } 1732 } 1733 return installedPackages; 1734 } 1735 1736 // Executes on the UI thread 1737 @Override 1738 protected void onPostExecute(Set<String> installedPackages) { 1739 if (mWebViewCore != null) { 1740 mWebViewCore.sendMessage(EventHub.ADD_PACKAGE_NAMES, installedPackages); 1741 } 1742 } 1743 }; 1744 task.execute(); 1745 } 1746 1747 void updateMultiTouchSupport(Context context) { 1748 mZoomManager.updateMultiTouchSupport(context); 1749 } 1750 1751 private void init() { 1752 OnTrimMemoryListener.init(mContext); 1753 mWebView.setWillNotDraw(false); 1754 mWebView.setFocusable(true); 1755 mWebView.setFocusableInTouchMode(true); 1756 mWebView.setClickable(true); 1757 mWebView.setLongClickable(true); 1758 1759 final ViewConfiguration configuration = ViewConfiguration.get(mContext); 1760 int slop = configuration.getScaledTouchSlop(); 1761 mTouchSlopSquare = slop * slop; 1762 slop = configuration.getScaledDoubleTapSlop(); 1763 mDoubleTapSlopSquare = slop * slop; 1764 final float density = mContext.getResources().getDisplayMetrics().density; 1765 // use one line height, 16 based on our current default font, for how 1766 // far we allow a touch be away from the edge of a link 1767 mNavSlop = (int) (16 * density); 1768 mZoomManager.init(density); 1769 mMaximumFling = configuration.getScaledMaximumFlingVelocity(); 1770 1771 // Compute the inverse of the density squared. 1772 DRAG_LAYER_INVERSE_DENSITY_SQUARED = 1 / (density * density); 1773 1774 mOverscrollDistance = configuration.getScaledOverscrollDistance(); 1775 mOverflingDistance = configuration.getScaledOverflingDistance(); 1776 1777 setScrollBarStyle(mWebViewPrivate.super_getScrollBarStyle()); 1778 // Initially use a size of two, since the user is likely to only hold 1779 // down two keys at a time (shift + another key) 1780 mKeysPressed = new Vector<Integer>(2); 1781 mHTML5VideoViewProxy = null ; 1782 } 1783 1784 @Override 1785 public boolean shouldDelayChildPressedState() { 1786 return true; 1787 } 1788 1789 /** 1790 * Adds accessibility APIs to JavaScript. 1791 * 1792 * Note: This method is responsible to performing the necessary 1793 * check if the accessibility APIs should be exposed. 1794 */ 1795 private void addAccessibilityApisToJavaScript() { 1796 if (AccessibilityManager.getInstance(mContext).isEnabled() 1797 && getSettings().getJavaScriptEnabled()) { 1798 // exposing the TTS for now ... 1799 final Context ctx = mContext; 1800 if (ctx != null) { 1801 final String packageName = ctx.getPackageName(); 1802 if (packageName != null) { 1803 mTextToSpeech = new TextToSpeech(ctx, null, null, 1804 packageName + ".**webview**", true); 1805 addJavascriptInterface(mTextToSpeech, ALIAS_ACCESSIBILITY_JS_INTERFACE); 1806 } 1807 } 1808 } 1809 } 1810 1811 /** 1812 * Removes accessibility APIs from JavaScript. 1813 */ 1814 private void removeAccessibilityApisFromJavaScript() { 1815 // exposing the TTS for now ... 1816 if (mTextToSpeech != null) { 1817 removeJavascriptInterface(ALIAS_ACCESSIBILITY_JS_INTERFACE); 1818 mTextToSpeech.shutdown(); 1819 mTextToSpeech = null; 1820 } 1821 } 1822 1823 @Override 1824 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 1825 info.setScrollable(isScrollableForAccessibility()); 1826 } 1827 1828 @Override 1829 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 1830 event.setScrollable(isScrollableForAccessibility()); 1831 event.setScrollX(getScrollX()); 1832 event.setScrollY(getScrollY()); 1833 final int convertedContentWidth = contentToViewX(getContentWidth()); 1834 final int adjustedViewWidth = getWidth() - mWebView.getPaddingLeft() 1835 - mWebView.getPaddingLeft(); 1836 event.setMaxScrollX(Math.max(convertedContentWidth - adjustedViewWidth, 0)); 1837 final int convertedContentHeight = contentToViewY(getContentHeight()); 1838 final int adjustedViewHeight = getHeight() - mWebView.getPaddingTop() 1839 - mWebView.getPaddingBottom(); 1840 event.setMaxScrollY(Math.max(convertedContentHeight - adjustedViewHeight, 0)); 1841 } 1842 1843 private boolean isScrollableForAccessibility() { 1844 return (contentToViewX(getContentWidth()) > getWidth() - mWebView.getPaddingLeft() 1845 - mWebView.getPaddingRight() 1846 || contentToViewY(getContentHeight()) > getHeight() - mWebView.getPaddingTop() 1847 - mWebView.getPaddingBottom()); 1848 } 1849 1850 @Override 1851 public void setOverScrollMode(int mode) { 1852 if (mode != View.OVER_SCROLL_NEVER) { 1853 if (mOverScrollGlow == null) { 1854 mOverScrollGlow = new OverScrollGlow(this); 1855 } 1856 } else { 1857 mOverScrollGlow = null; 1858 } 1859 } 1860 1861 /* package */ void adjustDefaultZoomDensity(int zoomDensity) { 1862 final float density = mContext.getResources().getDisplayMetrics().density 1863 * 100 / zoomDensity; 1864 updateDefaultZoomDensity(density); 1865 } 1866 1867 /* package */ void updateDefaultZoomDensity(float density) { 1868 mNavSlop = (int) (16 * density); 1869 mZoomManager.updateDefaultZoomDensity(density); 1870 } 1871 1872 /* package */ boolean onSavePassword(String schemePlusHost, String username, 1873 String password, final Message resumeMsg) { 1874 boolean rVal = false; 1875 if (resumeMsg == null) { 1876 // null resumeMsg implies saving password silently 1877 mDatabase.setUsernamePassword(schemePlusHost, username, password); 1878 } else { 1879 if (mResumeMsg != null) { 1880 Log.w(LOGTAG, "onSavePassword should not be called while dialog is up"); 1881 resumeMsg.sendToTarget(); 1882 return true; 1883 } 1884 mResumeMsg = resumeMsg; 1885 final Message remember = mPrivateHandler.obtainMessage( 1886 REMEMBER_PASSWORD); 1887 remember.getData().putString("host", schemePlusHost); 1888 remember.getData().putString("username", username); 1889 remember.getData().putString("password", password); 1890 remember.obj = resumeMsg; 1891 1892 final Message neverRemember = mPrivateHandler.obtainMessage( 1893 NEVER_REMEMBER_PASSWORD); 1894 neverRemember.getData().putString("host", schemePlusHost); 1895 neverRemember.getData().putString("username", username); 1896 neverRemember.getData().putString("password", password); 1897 neverRemember.obj = resumeMsg; 1898 1899 new AlertDialog.Builder(mContext) 1900 .setTitle(com.android.internal.R.string.save_password_label) 1901 .setMessage(com.android.internal.R.string.save_password_message) 1902 .setPositiveButton(com.android.internal.R.string.save_password_notnow, 1903 new DialogInterface.OnClickListener() { 1904 @Override 1905 public void onClick(DialogInterface dialog, int which) { 1906 if (mResumeMsg != null) { 1907 resumeMsg.sendToTarget(); 1908 mResumeMsg = null; 1909 } 1910 } 1911 }) 1912 .setNeutralButton(com.android.internal.R.string.save_password_remember, 1913 new DialogInterface.OnClickListener() { 1914 @Override 1915 public void onClick(DialogInterface dialog, int which) { 1916 if (mResumeMsg != null) { 1917 remember.sendToTarget(); 1918 mResumeMsg = null; 1919 } 1920 } 1921 }) 1922 .setNegativeButton(com.android.internal.R.string.save_password_never, 1923 new DialogInterface.OnClickListener() { 1924 @Override 1925 public void onClick(DialogInterface dialog, int which) { 1926 if (mResumeMsg != null) { 1927 neverRemember.sendToTarget(); 1928 mResumeMsg = null; 1929 } 1930 } 1931 }) 1932 .setOnCancelListener(new OnCancelListener() { 1933 @Override 1934 public void onCancel(DialogInterface dialog) { 1935 if (mResumeMsg != null) { 1936 resumeMsg.sendToTarget(); 1937 mResumeMsg = null; 1938 } 1939 } 1940 }).show(); 1941 // Return true so that WebViewCore will pause while the dialog is 1942 // up. 1943 rVal = true; 1944 } 1945 return rVal; 1946 } 1947 1948 @Override 1949 public void setScrollBarStyle(int style) { 1950 if (style == View.SCROLLBARS_INSIDE_INSET 1951 || style == View.SCROLLBARS_OUTSIDE_INSET) { 1952 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = false; 1953 } else { 1954 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = true; 1955 } 1956 } 1957 1958 /** 1959 * See {@link WebView#setHorizontalScrollbarOverlay(boolean)} 1960 */ 1961 @Override 1962 public void setHorizontalScrollbarOverlay(boolean overlay) { 1963 mOverlayHorizontalScrollbar = overlay; 1964 } 1965 1966 /** 1967 * See {@link WebView#setVerticalScrollbarOverlay(boolean) 1968 */ 1969 @Override 1970 public void setVerticalScrollbarOverlay(boolean overlay) { 1971 mOverlayVerticalScrollbar = overlay; 1972 } 1973 1974 /** 1975 * See {@link WebView#overlayHorizontalScrollbar()} 1976 */ 1977 @Override 1978 public boolean overlayHorizontalScrollbar() { 1979 return mOverlayHorizontalScrollbar; 1980 } 1981 1982 /** 1983 * See {@link WebView#overlayVerticalScrollbar()} 1984 */ 1985 @Override 1986 public boolean overlayVerticalScrollbar() { 1987 return mOverlayVerticalScrollbar; 1988 } 1989 1990 /* 1991 * Return the width of the view where the content of WebView should render 1992 * to. 1993 * Note: this can be called from WebCoreThread. 1994 */ 1995 /* package */ int getViewWidth() { 1996 if (!mWebView.isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) { 1997 return getWidth(); 1998 } else { 1999 return Math.max(0, getWidth() - mWebView.getVerticalScrollbarWidth()); 2000 } 2001 } 2002 2003 // Interface to enable the browser to override title bar handling. 2004 public interface TitleBarDelegate { 2005 int getTitleHeight(); 2006 public void onSetEmbeddedTitleBar(final View title); 2007 } 2008 2009 /** 2010 * Returns the height (in pixels) of the embedded title bar (if any). Does not care about 2011 * scrolling 2012 */ 2013 protected int getTitleHeight() { 2014 if (mWebView instanceof TitleBarDelegate) { 2015 return ((TitleBarDelegate) mWebView).getTitleHeight(); 2016 } 2017 return mTitleBar != null ? mTitleBar.getHeight() : 0; 2018 } 2019 2020 /** 2021 * See {@link WebView#getVisibleTitleHeight()} 2022 */ 2023 @Override 2024 @Deprecated 2025 public int getVisibleTitleHeight() { 2026 // Actually, this method returns the height of the embedded title bar if one is set via the 2027 // hidden setEmbeddedTitleBar method. 2028 return getVisibleTitleHeightImpl(); 2029 } 2030 2031 private int getVisibleTitleHeightImpl() { 2032 // need to restrict mScrollY due to over scroll 2033 return Math.max(getTitleHeight() - Math.max(0, getScrollY()), 2034 getOverlappingActionModeHeight()); 2035 } 2036 2037 private int mCachedOverlappingActionModeHeight = -1; 2038 2039 private int getOverlappingActionModeHeight() { 2040 if (mFindCallback == null) { 2041 return 0; 2042 } 2043 if (mCachedOverlappingActionModeHeight < 0) { 2044 mWebView.getGlobalVisibleRect(mGlobalVisibleRect, mGlobalVisibleOffset); 2045 mCachedOverlappingActionModeHeight = Math.max(0, 2046 mFindCallback.getActionModeGlobalBottom() - mGlobalVisibleRect.top); 2047 } 2048 return mCachedOverlappingActionModeHeight; 2049 } 2050 2051 /* 2052 * Return the height of the view where the content of WebView should render 2053 * to. Note that this excludes mTitleBar, if there is one. 2054 * Note: this can be called from WebCoreThread. 2055 */ 2056 /* package */ int getViewHeight() { 2057 return getViewHeightWithTitle() - getVisibleTitleHeightImpl(); 2058 } 2059 2060 int getViewHeightWithTitle() { 2061 int height = getHeight(); 2062 if (mWebView.isHorizontalScrollBarEnabled() && !mOverlayHorizontalScrollbar) { 2063 height -= mWebViewPrivate.getHorizontalScrollbarHeight(); 2064 } 2065 return height; 2066 } 2067 2068 /** 2069 * See {@link WebView#getCertificate()} 2070 */ 2071 @Override 2072 public SslCertificate getCertificate() { 2073 return mCertificate; 2074 } 2075 2076 /** 2077 * See {@link WebView#setCertificate(SslCertificate)} 2078 */ 2079 @Override 2080 public void setCertificate(SslCertificate certificate) { 2081 if (DebugFlags.WEB_VIEW) { 2082 Log.v(LOGTAG, "setCertificate=" + certificate); 2083 } 2084 // here, the certificate can be null (if the site is not secure) 2085 mCertificate = certificate; 2086 } 2087 2088 //------------------------------------------------------------------------- 2089 // Methods called by activity 2090 //------------------------------------------------------------------------- 2091 2092 /** 2093 * See {@link WebView#savePassword(String, String, String)} 2094 */ 2095 @Override 2096 public void savePassword(String host, String username, String password) { 2097 mDatabase.setUsernamePassword(host, username, password); 2098 } 2099 2100 /** 2101 * See {@link WebView#setHttpAuthUsernamePassword(String, String, String, String)} 2102 */ 2103 @Override 2104 public void setHttpAuthUsernamePassword(String host, String realm, 2105 String username, String password) { 2106 mDatabase.setHttpAuthUsernamePassword(host, realm, username, password); 2107 } 2108 2109 /** 2110 * See {@link WebView#getHttpAuthUsernamePassword(String, String)} 2111 */ 2112 @Override 2113 public String[] getHttpAuthUsernamePassword(String host, String realm) { 2114 return mDatabase.getHttpAuthUsernamePassword(host, realm); 2115 } 2116 2117 /** 2118 * Remove Find or Select ActionModes, if active. 2119 */ 2120 private void clearActionModes() { 2121 if (mSelectCallback != null) { 2122 mSelectCallback.finish(); 2123 } 2124 if (mFindCallback != null) { 2125 mFindCallback.finish(); 2126 } 2127 } 2128 2129 /** 2130 * Called to clear state when moving from one page to another, or changing 2131 * in some other way that makes elements associated with the current page 2132 * (such as ActionModes) no longer relevant. 2133 */ 2134 private void clearHelpers() { 2135 hideSoftKeyboard(); 2136 clearActionModes(); 2137 dismissFullScreenMode(); 2138 cancelSelectDialog(); 2139 } 2140 2141 private void cancelSelectDialog() { 2142 if (mListBoxDialog != null) { 2143 mListBoxDialog.cancel(); 2144 mListBoxDialog = null; 2145 } 2146 } 2147 2148 /** 2149 * See {@link WebView#destroy()} 2150 */ 2151 @Override 2152 public void destroy() { 2153 destroyImpl(); 2154 } 2155 2156 private void destroyImpl() { 2157 mCallbackProxy.blockMessages(); 2158 clearHelpers(); 2159 if (mListBoxDialog != null) { 2160 mListBoxDialog.dismiss(); 2161 mListBoxDialog = null; 2162 } 2163 if (mNativeClass != 0) nativeStopGL(); 2164 if (mWebViewCore != null) { 2165 // Tell WebViewCore to destroy itself 2166 synchronized (this) { 2167 WebViewCore webViewCore = mWebViewCore; 2168 mWebViewCore = null; // prevent using partial webViewCore 2169 webViewCore.destroy(); 2170 } 2171 // Remove any pending messages that might not be serviced yet. 2172 mPrivateHandler.removeCallbacksAndMessages(null); 2173 } 2174 if (mNativeClass != 0) { 2175 nativeDestroy(); 2176 mNativeClass = 0; 2177 } 2178 } 2179 2180 /** 2181 * See {@link WebView#enablePlatformNotifications()} 2182 */ 2183 @Deprecated 2184 public static void enablePlatformNotifications() { 2185 synchronized (WebViewClassic.class) { 2186 sNotificationsEnabled = true; 2187 Context context = JniUtil.getContext(); 2188 if (context != null) 2189 setupProxyListener(context); 2190 } 2191 } 2192 2193 /** 2194 * See {@link WebView#disablePlatformNotifications()} 2195 */ 2196 @Deprecated 2197 public static void disablePlatformNotifications() { 2198 synchronized (WebViewClassic.class) { 2199 sNotificationsEnabled = false; 2200 Context context = JniUtil.getContext(); 2201 if (context != null) 2202 disableProxyListener(context); 2203 } 2204 } 2205 2206 /** 2207 * Sets JavaScript engine flags. 2208 * 2209 * @param flags JS engine flags in a String 2210 * 2211 * This is an implementation detail. 2212 */ 2213 public void setJsFlags(String flags) { 2214 mWebViewCore.sendMessage(EventHub.SET_JS_FLAGS, flags); 2215 } 2216 2217 /** 2218 * See {@link WebView#setNetworkAvailable(boolean)} 2219 */ 2220 @Override 2221 public void setNetworkAvailable(boolean networkUp) { 2222 mWebViewCore.sendMessage(EventHub.SET_NETWORK_STATE, 2223 networkUp ? 1 : 0, 0); 2224 } 2225 2226 /** 2227 * Inform WebView about the current network type. 2228 */ 2229 public void setNetworkType(String type, String subtype) { 2230 Map<String, String> map = new HashMap<String, String>(); 2231 map.put("type", type); 2232 map.put("subtype", subtype); 2233 mWebViewCore.sendMessage(EventHub.SET_NETWORK_TYPE, map); 2234 } 2235 2236 /** 2237 * See {@link WebView#saveState(Bundle)} 2238 */ 2239 @Override 2240 public WebBackForwardList saveState(Bundle outState) { 2241 if (outState == null) { 2242 return null; 2243 } 2244 // We grab a copy of the back/forward list because a client of WebView 2245 // may have invalidated the history list by calling clearHistory. 2246 WebBackForwardList list = copyBackForwardList(); 2247 final int currentIndex = list.getCurrentIndex(); 2248 final int size = list.getSize(); 2249 // We should fail saving the state if the list is empty or the index is 2250 // not in a valid range. 2251 if (currentIndex < 0 || currentIndex >= size || size == 0) { 2252 return null; 2253 } 2254 outState.putInt("index", currentIndex); 2255 // FIXME: This should just be a byte[][] instead of ArrayList but 2256 // Parcel.java does not have the code to handle multi-dimensional 2257 // arrays. 2258 ArrayList<byte[]> history = new ArrayList<byte[]>(size); 2259 for (int i = 0; i < size; i++) { 2260 WebHistoryItem item = list.getItemAtIndex(i); 2261 if (null == item) { 2262 // FIXME: this shouldn't happen 2263 // need to determine how item got set to null 2264 Log.w(LOGTAG, "saveState: Unexpected null history item."); 2265 return null; 2266 } 2267 byte[] data = item.getFlattenedData(); 2268 if (data == null) { 2269 // It would be very odd to not have any data for a given history 2270 // item. And we will fail to rebuild the history list without 2271 // flattened data. 2272 return null; 2273 } 2274 history.add(data); 2275 } 2276 outState.putSerializable("history", history); 2277 if (mCertificate != null) { 2278 outState.putBundle("certificate", 2279 SslCertificate.saveState(mCertificate)); 2280 } 2281 outState.putBoolean("privateBrowsingEnabled", isPrivateBrowsingEnabled()); 2282 mZoomManager.saveZoomState(outState); 2283 return list; 2284 } 2285 2286 /** 2287 * See {@link WebView#savePicture(Bundle, File)} 2288 */ 2289 @Override 2290 @Deprecated 2291 public boolean savePicture(Bundle b, final File dest) { 2292 if (dest == null || b == null) { 2293 return false; 2294 } 2295 final Picture p = capturePicture(); 2296 // Use a temporary file while writing to ensure the destination file 2297 // contains valid data. 2298 final File temp = new File(dest.getPath() + ".writing"); 2299 new Thread(new Runnable() { 2300 @Override 2301 public void run() { 2302 FileOutputStream out = null; 2303 try { 2304 out = new FileOutputStream(temp); 2305 p.writeToStream(out); 2306 // Writing the picture succeeded, rename the temporary file 2307 // to the destination. 2308 temp.renameTo(dest); 2309 } catch (Exception e) { 2310 // too late to do anything about it. 2311 } finally { 2312 if (out != null) { 2313 try { 2314 out.close(); 2315 } catch (Exception e) { 2316 // Can't do anything about that 2317 } 2318 } 2319 temp.delete(); 2320 } 2321 } 2322 }).start(); 2323 // now update the bundle 2324 b.putInt("scrollX", getScrollX()); 2325 b.putInt("scrollY", getScrollY()); 2326 mZoomManager.saveZoomState(b); 2327 return true; 2328 } 2329 2330 private void restoreHistoryPictureFields(Picture p, Bundle b) { 2331 int sx = b.getInt("scrollX", 0); 2332 int sy = b.getInt("scrollY", 0); 2333 2334 mDrawHistory = true; 2335 mHistoryPicture = p; 2336 2337 setScrollXRaw(sx); 2338 setScrollYRaw(sy); 2339 mZoomManager.restoreZoomState(b); 2340 final float scale = mZoomManager.getScale(); 2341 mHistoryWidth = Math.round(p.getWidth() * scale); 2342 mHistoryHeight = Math.round(p.getHeight() * scale); 2343 2344 invalidate(); 2345 } 2346 2347 /** 2348 * See {@link WebView#restorePicture(Bundle, File)}; 2349 */ 2350 @Override 2351 @Deprecated 2352 public boolean restorePicture(Bundle b, File src) { 2353 if (src == null || b == null) { 2354 return false; 2355 } 2356 if (!src.exists()) { 2357 return false; 2358 } 2359 try { 2360 final FileInputStream in = new FileInputStream(src); 2361 final Bundle copy = new Bundle(b); 2362 new Thread(new Runnable() { 2363 @Override 2364 public void run() { 2365 try { 2366 final Picture p = Picture.createFromStream(in); 2367 if (p != null) { 2368 // Post a runnable on the main thread to update the 2369 // history picture fields. 2370 mPrivateHandler.post(new Runnable() { 2371 @Override 2372 public void run() { 2373 restoreHistoryPictureFields(p, copy); 2374 } 2375 }); 2376 } 2377 } finally { 2378 try { 2379 in.close(); 2380 } catch (Exception e) { 2381 // Nothing we can do now. 2382 } 2383 } 2384 } 2385 }).start(); 2386 } catch (FileNotFoundException e){ 2387 e.printStackTrace(); 2388 } 2389 return true; 2390 } 2391 2392 /** 2393 * Saves the view data to the output stream. The output is highly 2394 * version specific, and may not be able to be loaded by newer versions 2395 * of WebView. 2396 * @param stream The {@link OutputStream} to save to 2397 * @return True if saved successfully 2398 */ 2399 public boolean saveViewState(OutputStream stream) { 2400 try { 2401 return ViewStateSerializer.serializeViewState(stream, this); 2402 } catch (IOException e) { 2403 Log.w(LOGTAG, "Failed to saveViewState", e); 2404 } 2405 return false; 2406 } 2407 2408 /** 2409 * Loads the view data from the input stream. See 2410 * {@link #saveViewState(OutputStream)} for more information. 2411 * @param stream The {@link InputStream} to load from 2412 * @return True if loaded successfully 2413 */ 2414 public boolean loadViewState(InputStream stream) { 2415 try { 2416 mLoadedPicture = ViewStateSerializer.deserializeViewState(stream, this); 2417 mBlockWebkitViewMessages = true; 2418 setNewPicture(mLoadedPicture, true); 2419 mLoadedPicture.mViewState = null; 2420 return true; 2421 } catch (IOException e) { 2422 Log.w(LOGTAG, "Failed to loadViewState", e); 2423 } 2424 return false; 2425 } 2426 2427 /** 2428 * Clears the view state set with {@link #loadViewState(InputStream)}. 2429 * This WebView will then switch to showing the content from webkit 2430 */ 2431 public void clearViewState() { 2432 mBlockWebkitViewMessages = false; 2433 mLoadedPicture = null; 2434 invalidate(); 2435 } 2436 2437 /** 2438 * See {@link WebView#restoreState(Bundle)} 2439 */ 2440 @Override 2441 public WebBackForwardList restoreState(Bundle inState) { 2442 WebBackForwardList returnList = null; 2443 if (inState == null) { 2444 return returnList; 2445 } 2446 if (inState.containsKey("index") && inState.containsKey("history")) { 2447 mCertificate = SslCertificate.restoreState( 2448 inState.getBundle("certificate")); 2449 2450 final WebBackForwardList list = mCallbackProxy.getBackForwardList(); 2451 final int index = inState.getInt("index"); 2452 // We can't use a clone of the list because we need to modify the 2453 // shared copy, so synchronize instead to prevent concurrent 2454 // modifications. 2455 synchronized (list) { 2456 final List<byte[]> history = 2457 (List<byte[]>) inState.getSerializable("history"); 2458 final int size = history.size(); 2459 // Check the index bounds so we don't crash in native code while 2460 // restoring the history index. 2461 if (index < 0 || index >= size) { 2462 return null; 2463 } 2464 for (int i = 0; i < size; i++) { 2465 byte[] data = history.remove(0); 2466 if (data == null) { 2467 // If we somehow have null data, we cannot reconstruct 2468 // the item and thus our history list cannot be rebuilt. 2469 return null; 2470 } 2471 WebHistoryItem item = new WebHistoryItem(data); 2472 list.addHistoryItem(item); 2473 } 2474 // Grab the most recent copy to return to the caller. 2475 returnList = copyBackForwardList(); 2476 // Update the copy to have the correct index. 2477 returnList.setCurrentIndex(index); 2478 } 2479 // Restore private browsing setting. 2480 if (inState.getBoolean("privateBrowsingEnabled")) { 2481 getSettings().setPrivateBrowsingEnabled(true); 2482 } 2483 mZoomManager.restoreZoomState(inState); 2484 // Remove all pending messages because we are restoring previous 2485 // state. 2486 mWebViewCore.removeMessages(); 2487 // Send a restore state message. 2488 mWebViewCore.sendMessage(EventHub.RESTORE_STATE, index); 2489 } 2490 return returnList; 2491 } 2492 2493 /** 2494 * See {@link WebView#loadUrl(String, Map)} 2495 */ 2496 @Override 2497 public void loadUrl(String url, Map<String, String> additionalHttpHeaders) { 2498 loadUrlImpl(url, additionalHttpHeaders); 2499 } 2500 2501 private void loadUrlImpl(String url, Map<String, String> extraHeaders) { 2502 switchOutDrawHistory(); 2503 WebViewCore.GetUrlData arg = new WebViewCore.GetUrlData(); 2504 arg.mUrl = url; 2505 arg.mExtraHeaders = extraHeaders; 2506 mWebViewCore.sendMessage(EventHub.LOAD_URL, arg); 2507 clearHelpers(); 2508 } 2509 2510 /** 2511 * See {@link WebView#loadUrl(String)} 2512 */ 2513 @Override 2514 public void loadUrl(String url) { 2515 loadUrlImpl(url); 2516 } 2517 2518 private void loadUrlImpl(String url) { 2519 if (url == null) { 2520 return; 2521 } 2522 loadUrlImpl(url, null); 2523 } 2524 2525 /** 2526 * See {@link WebView#postUrl(String, byte[])} 2527 */ 2528 @Override 2529 public void postUrl(String url, byte[] postData) { 2530 if (URLUtil.isNetworkUrl(url)) { 2531 switchOutDrawHistory(); 2532 WebViewCore.PostUrlData arg = new WebViewCore.PostUrlData(); 2533 arg.mUrl = url; 2534 arg.mPostData = postData; 2535 mWebViewCore.sendMessage(EventHub.POST_URL, arg); 2536 clearHelpers(); 2537 } else { 2538 loadUrlImpl(url); 2539 } 2540 } 2541 2542 /** 2543 * See {@link WebView#loadData(String, String, String)} 2544 */ 2545 @Override 2546 public void loadData(String data, String mimeType, String encoding) { 2547 loadDataImpl(data, mimeType, encoding); 2548 } 2549 2550 private void loadDataImpl(String data, String mimeType, String encoding) { 2551 StringBuilder dataUrl = new StringBuilder("data:"); 2552 dataUrl.append(mimeType); 2553 if ("base64".equals(encoding)) { 2554 dataUrl.append(";base64"); 2555 } 2556 dataUrl.append(","); 2557 dataUrl.append(data); 2558 loadUrlImpl(dataUrl.toString()); 2559 } 2560 2561 /** 2562 * See {@link WebView#loadDataWithBaseURL(String, String, String, String, String)} 2563 */ 2564 @Override 2565 public void loadDataWithBaseURL(String baseUrl, String data, 2566 String mimeType, String encoding, String historyUrl) { 2567 2568 if (baseUrl != null && baseUrl.toLowerCase().startsWith("data:")) { 2569 loadDataImpl(data, mimeType, encoding); 2570 return; 2571 } 2572 switchOutDrawHistory(); 2573 WebViewCore.BaseUrlData arg = new WebViewCore.BaseUrlData(); 2574 arg.mBaseUrl = baseUrl; 2575 arg.mData = data; 2576 arg.mMimeType = mimeType; 2577 arg.mEncoding = encoding; 2578 arg.mHistoryUrl = historyUrl; 2579 mWebViewCore.sendMessage(EventHub.LOAD_DATA, arg); 2580 clearHelpers(); 2581 } 2582 2583 /** 2584 * See {@link WebView#saveWebArchive(String)} 2585 */ 2586 @Override 2587 public void saveWebArchive(String filename) { 2588 saveWebArchiveImpl(filename, false, null); 2589 } 2590 2591 /* package */ static class SaveWebArchiveMessage { 2592 SaveWebArchiveMessage (String basename, boolean autoname, ValueCallback<String> callback) { 2593 mBasename = basename; 2594 mAutoname = autoname; 2595 mCallback = callback; 2596 } 2597 2598 /* package */ final String mBasename; 2599 /* package */ final boolean mAutoname; 2600 /* package */ final ValueCallback<String> mCallback; 2601 /* package */ String mResultFile; 2602 } 2603 2604 /** 2605 * See {@link WebView#saveWebArchive(String, boolean, ValueCallback)} 2606 */ 2607 @Override 2608 public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) { 2609 saveWebArchiveImpl(basename, autoname, callback); 2610 } 2611 2612 private void saveWebArchiveImpl(String basename, boolean autoname, 2613 ValueCallback<String> callback) { 2614 mWebViewCore.sendMessage(EventHub.SAVE_WEBARCHIVE, 2615 new SaveWebArchiveMessage(basename, autoname, callback)); 2616 } 2617 2618 /** 2619 * See {@link WebView#stopLoading()} 2620 */ 2621 @Override 2622 public void stopLoading() { 2623 // TODO: should we clear all the messages in the queue before sending 2624 // STOP_LOADING? 2625 switchOutDrawHistory(); 2626 mWebViewCore.sendMessage(EventHub.STOP_LOADING); 2627 } 2628 2629 /** 2630 * See {@link WebView#reload()} 2631 */ 2632 @Override 2633 public void reload() { 2634 clearHelpers(); 2635 switchOutDrawHistory(); 2636 mWebViewCore.sendMessage(EventHub.RELOAD); 2637 } 2638 2639 /** 2640 * See {@link WebView#canGoBack()} 2641 */ 2642 @Override 2643 public boolean canGoBack() { 2644 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2645 synchronized (l) { 2646 if (l.getClearPending()) { 2647 return false; 2648 } else { 2649 return l.getCurrentIndex() > 0; 2650 } 2651 } 2652 } 2653 2654 /** 2655 * See {@link WebView#goBack()} 2656 */ 2657 @Override 2658 public void goBack() { 2659 goBackOrForwardImpl(-1); 2660 } 2661 2662 /** 2663 * See {@link WebView#canGoForward()} 2664 */ 2665 @Override 2666 public boolean canGoForward() { 2667 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2668 synchronized (l) { 2669 if (l.getClearPending()) { 2670 return false; 2671 } else { 2672 return l.getCurrentIndex() < l.getSize() - 1; 2673 } 2674 } 2675 } 2676 2677 /** 2678 * See {@link WebView#goForward()} 2679 */ 2680 @Override 2681 public void goForward() { 2682 goBackOrForwardImpl(1); 2683 } 2684 2685 /** 2686 * See {@link WebView#canGoBackOrForward(int)} 2687 */ 2688 @Override 2689 public boolean canGoBackOrForward(int steps) { 2690 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2691 synchronized (l) { 2692 if (l.getClearPending()) { 2693 return false; 2694 } else { 2695 int newIndex = l.getCurrentIndex() + steps; 2696 return newIndex >= 0 && newIndex < l.getSize(); 2697 } 2698 } 2699 } 2700 2701 /** 2702 * See {@link WebView#goBackOrForward(int)} 2703 */ 2704 @Override 2705 public void goBackOrForward(int steps) { 2706 goBackOrForwardImpl(steps); 2707 } 2708 2709 private void goBackOrForwardImpl(int steps) { 2710 goBackOrForward(steps, false); 2711 } 2712 2713 private void goBackOrForward(int steps, boolean ignoreSnapshot) { 2714 if (steps != 0) { 2715 clearHelpers(); 2716 mWebViewCore.sendMessage(EventHub.GO_BACK_FORWARD, steps, 2717 ignoreSnapshot ? 1 : 0); 2718 } 2719 } 2720 2721 /** 2722 * See {@link WebView#isPrivateBrowsingEnabled()} 2723 */ 2724 @Override 2725 public boolean isPrivateBrowsingEnabled() { 2726 return getSettings().isPrivateBrowsingEnabled(); 2727 } 2728 2729 private void startPrivateBrowsing() { 2730 getSettings().setPrivateBrowsingEnabled(true); 2731 } 2732 2733 private boolean extendScroll(int y) { 2734 int finalY = mScroller.getFinalY(); 2735 int newY = pinLocY(finalY + y); 2736 if (newY == finalY) return false; 2737 mScroller.setFinalY(newY); 2738 mScroller.extendDuration(computeDuration(0, y)); 2739 return true; 2740 } 2741 2742 /** 2743 * See {@link WebView#pageUp(boolean)} 2744 */ 2745 @Override 2746 public boolean pageUp(boolean top) { 2747 if (mNativeClass == 0) { 2748 return false; 2749 } 2750 if (top) { 2751 // go to the top of the document 2752 return pinScrollTo(getScrollX(), 0, true, 0); 2753 } 2754 // Page up 2755 int h = getHeight(); 2756 int y; 2757 if (h > 2 * PAGE_SCROLL_OVERLAP) { 2758 y = -h + PAGE_SCROLL_OVERLAP; 2759 } else { 2760 y = -h / 2; 2761 } 2762 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 2763 : extendScroll(y); 2764 } 2765 2766 /** 2767 * See {@link WebView#pageDown(boolean)} 2768 */ 2769 @Override 2770 public boolean pageDown(boolean bottom) { 2771 if (mNativeClass == 0) { 2772 return false; 2773 } 2774 if (bottom) { 2775 return pinScrollTo(getScrollX(), computeRealVerticalScrollRange(), true, 0); 2776 } 2777 // Page down. 2778 int h = getHeight(); 2779 int y; 2780 if (h > 2 * PAGE_SCROLL_OVERLAP) { 2781 y = h - PAGE_SCROLL_OVERLAP; 2782 } else { 2783 y = h / 2; 2784 } 2785 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 2786 : extendScroll(y); 2787 } 2788 2789 /** 2790 * See {@link WebView#clearView()} 2791 */ 2792 @Override 2793 public void clearView() { 2794 mContentWidth = 0; 2795 mContentHeight = 0; 2796 setBaseLayer(0, null, false, false); 2797 mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); 2798 } 2799 2800 /** 2801 * See {@link WebView#capturePicture()} 2802 */ 2803 @Override 2804 public Picture capturePicture() { 2805 if (mNativeClass == 0) return null; 2806 Picture result = new Picture(); 2807 nativeCopyBaseContentToPicture(result); 2808 return result; 2809 } 2810 2811 /** 2812 * See {@link WebView#getScale()} 2813 */ 2814 @Override 2815 public float getScale() { 2816 return mZoomManager.getScale(); 2817 } 2818 2819 /** 2820 * Compute the reading level scale of the WebView 2821 * @param scale The current scale. 2822 * @return The reading level scale. 2823 */ 2824 /*package*/ float computeReadingLevelScale(float scale) { 2825 return mZoomManager.computeReadingLevelScale(scale); 2826 } 2827 2828 /** 2829 * See {@link WebView#setInitialScale(int)} 2830 */ 2831 @Override 2832 public void setInitialScale(int scaleInPercent) { 2833 mZoomManager.setInitialScaleInPercent(scaleInPercent); 2834 } 2835 2836 /** 2837 * See {@link WebView#invokeZoomPicker()} 2838 */ 2839 @Override 2840 public void invokeZoomPicker() { 2841 if (!getSettings().supportZoom()) { 2842 Log.w(LOGTAG, "This WebView doesn't support zoom."); 2843 return; 2844 } 2845 clearHelpers(); 2846 mZoomManager.invokeZoomPicker(); 2847 } 2848 2849 /** 2850 * See {@link WebView#getHitTestResult()} 2851 */ 2852 @Override 2853 public HitTestResult getHitTestResult() { 2854 return mInitialHitTestResult; 2855 } 2856 2857 // No left edge for double-tap zoom alignment 2858 static final int NO_LEFTEDGE = -1; 2859 2860 int getBlockLeftEdge(int x, int y, float readingScale) { 2861 float invReadingScale = 1.0f / readingScale; 2862 int readingWidth = (int) (getViewWidth() * invReadingScale); 2863 int left = NO_LEFTEDGE; 2864 if (mFocusedNode != null) { 2865 final int length = mFocusedNode.mEnclosingParentRects.length; 2866 for (int i = 0; i < length; i++) { 2867 Rect rect = mFocusedNode.mEnclosingParentRects[i]; 2868 if (rect.width() < mFocusedNode.mHitTestSlop) { 2869 // ignore bounding boxes that are too small 2870 continue; 2871 } else if (left != NO_LEFTEDGE && rect.width() > readingWidth) { 2872 // stop when bounding box doesn't fit the screen width 2873 // at reading scale 2874 break; 2875 } 2876 2877 left = rect.left; 2878 } 2879 } 2880 2881 return left; 2882 } 2883 2884 /** 2885 * See {@link WebView#requestFocusNodeHref(Message)} 2886 */ 2887 @Override 2888 public void requestFocusNodeHref(Message hrefMsg) { 2889 if (hrefMsg == null) { 2890 return; 2891 } 2892 int contentX = viewToContentX(mLastTouchX + getScrollX()); 2893 int contentY = viewToContentY(mLastTouchY + getScrollY()); 2894 if (mFocusedNode != null && mFocusedNode.mHitTestX == contentX 2895 && mFocusedNode.mHitTestY == contentY) { 2896 hrefMsg.getData().putString(FocusNodeHref.URL, mFocusedNode.mLinkUrl); 2897 hrefMsg.getData().putString(FocusNodeHref.TITLE, mFocusedNode.mAnchorText); 2898 hrefMsg.getData().putString(FocusNodeHref.SRC, mFocusedNode.mImageUrl); 2899 hrefMsg.sendToTarget(); 2900 return; 2901 } 2902 mWebViewCore.sendMessage(EventHub.REQUEST_CURSOR_HREF, 2903 contentX, contentY, hrefMsg); 2904 } 2905 2906 /** 2907 * See {@link WebView#requestImageRef(Message)} 2908 */ 2909 @Override 2910 public void requestImageRef(Message msg) { 2911 if (0 == mNativeClass) return; // client isn't initialized 2912 String url = mFocusedNode != null ? mFocusedNode.mImageUrl : null; 2913 Bundle data = msg.getData(); 2914 data.putString("url", url); 2915 msg.setData(data); 2916 msg.sendToTarget(); 2917 } 2918 2919 static int pinLoc(int x, int viewMax, int docMax) { 2920// Log.d(LOGTAG, "-- pinLoc " + x + " " + viewMax + " " + docMax); 2921 if (docMax < viewMax) { // the doc has room on the sides for "blank" 2922 // pin the short document to the top/left of the screen 2923 x = 0; 2924// Log.d(LOGTAG, "--- center " + x); 2925 } else if (x < 0) { 2926 x = 0; 2927// Log.d(LOGTAG, "--- zero"); 2928 } else if (x + viewMax > docMax) { 2929 x = docMax - viewMax; 2930// Log.d(LOGTAG, "--- pin " + x); 2931 } 2932 return x; 2933 } 2934 2935 // Expects x in view coordinates 2936 int pinLocX(int x) { 2937 if (mInOverScrollMode) return x; 2938 return pinLoc(x, getViewWidth(), computeRealHorizontalScrollRange()); 2939 } 2940 2941 // Expects y in view coordinates 2942 int pinLocY(int y) { 2943 if (mInOverScrollMode) return y; 2944 return pinLoc(y, getViewHeightWithTitle(), 2945 computeRealVerticalScrollRange() + getTitleHeight()); 2946 } 2947 2948 /** 2949 * A title bar which is embedded in this WebView, and scrolls along with it 2950 * vertically, but not horizontally. 2951 */ 2952 private View mTitleBar; 2953 2954 /** 2955 * the title bar rendering gravity 2956 */ 2957 private int mTitleGravity; 2958 2959 /** 2960 * Add or remove a title bar to be embedded into the WebView, and scroll 2961 * along with it vertically, while remaining in view horizontally. Pass 2962 * null to remove the title bar from the WebView, and return to drawing 2963 * the WebView normally without translating to account for the title bar. 2964 */ 2965 public void setEmbeddedTitleBar(View v) { 2966 if (mWebView instanceof TitleBarDelegate) { 2967 ((TitleBarDelegate) mWebView).onSetEmbeddedTitleBar(v); 2968 } 2969 if (mTitleBar == v) return; 2970 if (mTitleBar != null) { 2971 mWebView.removeView(mTitleBar); 2972 } 2973 if (null != v) { 2974 mWebView.addView(v, new AbsoluteLayout.LayoutParams( 2975 ViewGroup.LayoutParams.MATCH_PARENT, 2976 ViewGroup.LayoutParams.WRAP_CONTENT, 0, 0)); 2977 } 2978 mTitleBar = v; 2979 } 2980 2981 /** 2982 * Set where to render the embedded title bar 2983 * NO_GRAVITY at the top of the page 2984 * TOP at the top of the screen 2985 */ 2986 public void setTitleBarGravity(int gravity) { 2987 mTitleGravity = gravity; 2988 // force refresh 2989 invalidate(); 2990 } 2991 2992 /** 2993 * Given a distance in view space, convert it to content space. Note: this 2994 * does not reflect translation, just scaling, so this should not be called 2995 * with coordinates, but should be called for dimensions like width or 2996 * height. 2997 */ 2998 private int viewToContentDimension(int d) { 2999 return Math.round(d * mZoomManager.getInvScale()); 3000 } 3001 3002 /** 3003 * Given an x coordinate in view space, convert it to content space. Also 3004 * may be used for absolute heights. 3005 */ 3006 /*package*/ int viewToContentX(int x) { 3007 return viewToContentDimension(x); 3008 } 3009 3010 /** 3011 * Given a y coordinate in view space, convert it to content space. 3012 * Takes into account the height of the title bar if there is one 3013 * embedded into the WebView. 3014 */ 3015 /*package*/ int viewToContentY(int y) { 3016 return viewToContentDimension(y - getTitleHeight()); 3017 } 3018 3019 /** 3020 * Given a x coordinate in view space, convert it to content space. 3021 * Returns the result as a float. 3022 */ 3023 private float viewToContentXf(int x) { 3024 return x * mZoomManager.getInvScale(); 3025 } 3026 3027 /** 3028 * Given a y coordinate in view space, convert it to content space. 3029 * Takes into account the height of the title bar if there is one 3030 * embedded into the WebView. Returns the result as a float. 3031 */ 3032 private float viewToContentYf(int y) { 3033 return (y - getTitleHeight()) * mZoomManager.getInvScale(); 3034 } 3035 3036 /** 3037 * Given a distance in content space, convert it to view space. Note: this 3038 * does not reflect translation, just scaling, so this should not be called 3039 * with coordinates, but should be called for dimensions like width or 3040 * height. 3041 */ 3042 /*package*/ int contentToViewDimension(int d) { 3043 return Math.round(d * mZoomManager.getScale()); 3044 } 3045 3046 /** 3047 * Given an x coordinate in content space, convert it to view 3048 * space. 3049 */ 3050 /*package*/ int contentToViewX(int x) { 3051 return contentToViewDimension(x); 3052 } 3053 3054 /** 3055 * Given a y coordinate in content space, convert it to view 3056 * space. Takes into account the height of the title bar. 3057 */ 3058 /*package*/ int contentToViewY(int y) { 3059 return contentToViewDimension(y) + getTitleHeight(); 3060 } 3061 3062 private Rect contentToViewRect(Rect x) { 3063 return new Rect(contentToViewX(x.left), contentToViewY(x.top), 3064 contentToViewX(x.right), contentToViewY(x.bottom)); 3065 } 3066 3067 /* To invalidate a rectangle in content coordinates, we need to transform 3068 the rect into view coordinates, so we can then call invalidate(...). 3069 3070 Normally, we would just call contentToView[XY](...), which eventually 3071 calls Math.round(coordinate * mActualScale). However, for invalidates, 3072 we need to account for the slop that occurs with antialiasing. To 3073 address that, we are a little more liberal in the size of the rect that 3074 we invalidate. 3075 3076 This liberal calculation calls floor() for the top/left, and ceil() for 3077 the bottom/right coordinates. This catches the possible extra pixels of 3078 antialiasing that we might have missed with just round(). 3079 */ 3080 3081 // Called by JNI to invalidate the View, given rectangle coordinates in 3082 // content space 3083 private void viewInvalidate(int l, int t, int r, int b) { 3084 final float scale = mZoomManager.getScale(); 3085 final int dy = getTitleHeight(); 3086 mWebView.invalidate((int)Math.floor(l * scale), 3087 (int)Math.floor(t * scale) + dy, 3088 (int)Math.ceil(r * scale), 3089 (int)Math.ceil(b * scale) + dy); 3090 } 3091 3092 // Called by JNI to invalidate the View after a delay, given rectangle 3093 // coordinates in content space 3094 private void viewInvalidateDelayed(long delay, int l, int t, int r, int b) { 3095 final float scale = mZoomManager.getScale(); 3096 final int dy = getTitleHeight(); 3097 mWebView.postInvalidateDelayed(delay, 3098 (int)Math.floor(l * scale), 3099 (int)Math.floor(t * scale) + dy, 3100 (int)Math.ceil(r * scale), 3101 (int)Math.ceil(b * scale) + dy); 3102 } 3103 3104 private void invalidateContentRect(Rect r) { 3105 viewInvalidate(r.left, r.top, r.right, r.bottom); 3106 } 3107 3108 // stop the scroll animation, and don't let a subsequent fling add 3109 // to the existing velocity 3110 private void abortAnimation() { 3111 mScroller.abortAnimation(); 3112 mLastVelocity = 0; 3113 } 3114 3115 /* call from webcoreview.draw(), so we're still executing in the UI thread 3116 */ 3117 private void recordNewContentSize(int w, int h, boolean updateLayout) { 3118 3119 // premature data from webkit, ignore 3120 if ((w | h) == 0) { 3121 return; 3122 } 3123 3124 // don't abort a scroll animation if we didn't change anything 3125 if (mContentWidth != w || mContentHeight != h) { 3126 // record new dimensions 3127 mContentWidth = w; 3128 mContentHeight = h; 3129 // If history Picture is drawn, don't update scroll. They will be 3130 // updated when we get out of that mode. 3131 if (!mDrawHistory) { 3132 // repin our scroll, taking into account the new content size 3133 updateScrollCoordinates(pinLocX(getScrollX()), pinLocY(getScrollY())); 3134 if (!mScroller.isFinished()) { 3135 // We are in the middle of a scroll. Repin the final scroll 3136 // position. 3137 mScroller.setFinalX(pinLocX(mScroller.getFinalX())); 3138 mScroller.setFinalY(pinLocY(mScroller.getFinalY())); 3139 } 3140 } 3141 } 3142 contentSizeChanged(updateLayout); 3143 } 3144 3145 // Used to avoid sending many visible rect messages. 3146 private Rect mLastVisibleRectSent = new Rect(); 3147 private Rect mLastGlobalRect = new Rect(); 3148 private Rect mVisibleRect = new Rect(); 3149 private Rect mGlobalVisibleRect = new Rect(); 3150 private Point mScrollOffset = new Point(); 3151 3152 Rect sendOurVisibleRect() { 3153 if (mZoomManager.isPreventingWebkitUpdates()) return mLastVisibleRectSent; 3154 calcOurContentVisibleRect(mVisibleRect); 3155 // Rect.equals() checks for null input. 3156 if (!mVisibleRect.equals(mLastVisibleRectSent)) { 3157 if (!mBlockWebkitViewMessages) { 3158 mScrollOffset.set(mVisibleRect.left, mVisibleRect.top); 3159 mWebViewCore.removeMessages(EventHub.SET_SCROLL_OFFSET); 3160 mWebViewCore.sendMessage(EventHub.SET_SCROLL_OFFSET, 3161 mSendScrollEvent ? 1 : 0, mScrollOffset); 3162 } 3163 mLastVisibleRectSent.set(mVisibleRect); 3164 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 3165 } 3166 if (mWebView.getGlobalVisibleRect(mGlobalVisibleRect) 3167 && !mGlobalVisibleRect.equals(mLastGlobalRect)) { 3168 if (DebugFlags.WEB_VIEW) { 3169 Log.v(LOGTAG, "sendOurVisibleRect=(" + mGlobalVisibleRect.left + "," 3170 + mGlobalVisibleRect.top + ",r=" + mGlobalVisibleRect.right + ",b=" 3171 + mGlobalVisibleRect.bottom); 3172 } 3173 // TODO: the global offset is only used by windowRect() 3174 // in ChromeClientAndroid ; other clients such as touch 3175 // and mouse events could return view + screen relative points. 3176 if (!mBlockWebkitViewMessages) { 3177 mWebViewCore.sendMessage(EventHub.SET_GLOBAL_BOUNDS, mGlobalVisibleRect); 3178 } 3179 mLastGlobalRect.set(mGlobalVisibleRect); 3180 } 3181 return mVisibleRect; 3182 } 3183 3184 private Point mGlobalVisibleOffset = new Point(); 3185 // Sets r to be the visible rectangle of our webview in view coordinates 3186 private void calcOurVisibleRect(Rect r) { 3187 mWebView.getGlobalVisibleRect(r, mGlobalVisibleOffset); 3188 r.offset(-mGlobalVisibleOffset.x, -mGlobalVisibleOffset.y); 3189 } 3190 3191 // Sets r to be our visible rectangle in content coordinates 3192 private void calcOurContentVisibleRect(Rect r) { 3193 calcOurVisibleRect(r); 3194 r.left = viewToContentX(r.left); 3195 // viewToContentY will remove the total height of the title bar. Add 3196 // the visible height back in to account for the fact that if the title 3197 // bar is partially visible, the part of the visible rect which is 3198 // displaying our content is displaced by that amount. 3199 r.top = viewToContentY(r.top + getVisibleTitleHeightImpl()); 3200 r.right = viewToContentX(r.right); 3201 r.bottom = viewToContentY(r.bottom); 3202 } 3203 3204 private Rect mContentVisibleRect = new Rect(); 3205 // Sets r to be our visible rectangle in content coordinates. We use this 3206 // method on the native side to compute the position of the fixed layers. 3207 // Uses floating coordinates (necessary to correctly place elements when 3208 // the scale factor is not 1) 3209 private void calcOurContentVisibleRectF(RectF r) { 3210 calcOurVisibleRect(mContentVisibleRect); 3211 r.left = viewToContentXf(mContentVisibleRect.left); 3212 // viewToContentY will remove the total height of the title bar. Add 3213 // the visible height back in to account for the fact that if the title 3214 // bar is partially visible, the part of the visible rect which is 3215 // displaying our content is displaced by that amount. 3216 r.top = viewToContentYf(mContentVisibleRect.top + getVisibleTitleHeightImpl()); 3217 r.right = viewToContentXf(mContentVisibleRect.right); 3218 r.bottom = viewToContentYf(mContentVisibleRect.bottom); 3219 } 3220 3221 static class ViewSizeData { 3222 int mWidth; 3223 int mHeight; 3224 float mHeightWidthRatio; 3225 int mActualViewHeight; 3226 int mTextWrapWidth; 3227 int mAnchorX; 3228 int mAnchorY; 3229 float mScale; 3230 boolean mIgnoreHeight; 3231 } 3232 3233 /** 3234 * Compute unzoomed width and height, and if they differ from the last 3235 * values we sent, send them to webkit (to be used as new viewport) 3236 * 3237 * @param force ensures that the message is sent to webkit even if the width 3238 * or height has not changed since the last message 3239 * 3240 * @return true if new values were sent 3241 */ 3242 boolean sendViewSizeZoom(boolean force) { 3243 if (mBlockWebkitViewMessages) return false; 3244 if (mZoomManager.isPreventingWebkitUpdates()) return false; 3245 3246 int viewWidth = getViewWidth(); 3247 int newWidth = Math.round(viewWidth * mZoomManager.getInvScale()); 3248 // This height could be fixed and be different from actual visible height. 3249 int viewHeight = getViewHeightWithTitle() - getTitleHeight(); 3250 int newHeight = Math.round(viewHeight * mZoomManager.getInvScale()); 3251 // Make the ratio more accurate than (newHeight / newWidth), since the 3252 // latter both are calculated and rounded. 3253 float heightWidthRatio = (float) viewHeight / viewWidth; 3254 /* 3255 * Because the native side may have already done a layout before the 3256 * View system was able to measure us, we have to send a height of 0 to 3257 * remove excess whitespace when we grow our width. This will trigger a 3258 * layout and a change in content size. This content size change will 3259 * mean that contentSizeChanged will either call this method directly or 3260 * indirectly from onSizeChanged. 3261 */ 3262 if (newWidth > mLastWidthSent && mWrapContent) { 3263 newHeight = 0; 3264 heightWidthRatio = 0; 3265 } 3266 // Actual visible content height. 3267 int actualViewHeight = Math.round(getViewHeight() * mZoomManager.getInvScale()); 3268 // Avoid sending another message if the dimensions have not changed. 3269 if (newWidth != mLastWidthSent || newHeight != mLastHeightSent || force || 3270 actualViewHeight != mLastActualHeightSent) { 3271 ViewSizeData data = new ViewSizeData(); 3272 data.mWidth = newWidth; 3273 data.mHeight = newHeight; 3274 data.mHeightWidthRatio = heightWidthRatio; 3275 data.mActualViewHeight = actualViewHeight; 3276 data.mTextWrapWidth = Math.round(viewWidth / mZoomManager.getTextWrapScale()); 3277 data.mScale = mZoomManager.getScale(); 3278 data.mIgnoreHeight = mZoomManager.isFixedLengthAnimationInProgress() 3279 && !mHeightCanMeasure; 3280 data.mAnchorX = mZoomManager.getDocumentAnchorX(); 3281 data.mAnchorY = mZoomManager.getDocumentAnchorY(); 3282 mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, data); 3283 mLastWidthSent = newWidth; 3284 mLastHeightSent = newHeight; 3285 mLastActualHeightSent = actualViewHeight; 3286 mZoomManager.clearDocumentAnchor(); 3287 return true; 3288 } 3289 return false; 3290 } 3291 3292 /** 3293 * Update the double-tap zoom. 3294 */ 3295 /* package */ void updateDoubleTapZoom(int doubleTapZoom) { 3296 mZoomManager.updateDoubleTapZoom(doubleTapZoom); 3297 } 3298 3299 private int computeRealHorizontalScrollRange() { 3300 if (mDrawHistory) { 3301 return mHistoryWidth; 3302 } else { 3303 // to avoid rounding error caused unnecessary scrollbar, use floor 3304 return (int) Math.floor(mContentWidth * mZoomManager.getScale()); 3305 } 3306 } 3307 3308 @Override 3309 public int computeHorizontalScrollRange() { 3310 int range = computeRealHorizontalScrollRange(); 3311 3312 // Adjust reported range if overscrolled to compress the scroll bars 3313 final int scrollX = getScrollX(); 3314 final int overscrollRight = computeMaxScrollX(); 3315 if (scrollX < 0) { 3316 range -= scrollX; 3317 } else if (scrollX > overscrollRight) { 3318 range += scrollX - overscrollRight; 3319 } 3320 3321 return range; 3322 } 3323 3324 @Override 3325 public int computeHorizontalScrollOffset() { 3326 return Math.max(getScrollX(), 0); 3327 } 3328 3329 private int computeRealVerticalScrollRange() { 3330 if (mDrawHistory) { 3331 return mHistoryHeight; 3332 } else { 3333 // to avoid rounding error caused unnecessary scrollbar, use floor 3334 return (int) Math.floor(mContentHeight * mZoomManager.getScale()); 3335 } 3336 } 3337 3338 @Override 3339 public int computeVerticalScrollRange() { 3340 int range = computeRealVerticalScrollRange(); 3341 3342 // Adjust reported range if overscrolled to compress the scroll bars 3343 final int scrollY = getScrollY(); 3344 final int overscrollBottom = computeMaxScrollY(); 3345 if (scrollY < 0) { 3346 range -= scrollY; 3347 } else if (scrollY > overscrollBottom) { 3348 range += scrollY - overscrollBottom; 3349 } 3350 3351 return range; 3352 } 3353 3354 @Override 3355 public int computeVerticalScrollOffset() { 3356 return Math.max(getScrollY() - getTitleHeight(), 0); 3357 } 3358 3359 @Override 3360 public int computeVerticalScrollExtent() { 3361 return getViewHeight(); 3362 } 3363 3364 @Override 3365 public void onDrawVerticalScrollBar(Canvas canvas, 3366 Drawable scrollBar, 3367 int l, int t, int r, int b) { 3368 if (getScrollY() < 0) { 3369 t -= getScrollY(); 3370 } 3371 scrollBar.setBounds(l, t + getVisibleTitleHeightImpl(), r, b); 3372 scrollBar.draw(canvas); 3373 } 3374 3375 @Override 3376 public void onOverScrolled(int scrollX, int scrollY, boolean clampedX, 3377 boolean clampedY) { 3378 // Special-case layer scrolling so that we do not trigger normal scroll 3379 // updating. 3380 if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3381 scrollEditText(scrollX, scrollY); 3382 return; 3383 } 3384 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3385 scrollLayerTo(scrollX, scrollY); 3386 return; 3387 } 3388 mInOverScrollMode = false; 3389 int maxX = computeMaxScrollX(); 3390 int maxY = computeMaxScrollY(); 3391 if (maxX == 0) { 3392 // do not over scroll x if the page just fits the screen 3393 scrollX = pinLocX(scrollX); 3394 } else if (scrollX < 0 || scrollX > maxX) { 3395 mInOverScrollMode = true; 3396 } 3397 if (scrollY < 0 || scrollY > maxY) { 3398 mInOverScrollMode = true; 3399 } 3400 3401 int oldX = getScrollX(); 3402 int oldY = getScrollY(); 3403 3404 mWebViewPrivate.super_scrollTo(scrollX, scrollY); 3405 3406 if (mOverScrollGlow != null) { 3407 mOverScrollGlow.pullGlow(getScrollX(), getScrollY(), oldX, oldY, maxX, maxY); 3408 } 3409 } 3410 3411 /** 3412 * See {@link WebView#getUrl()} 3413 */ 3414 @Override 3415 public String getUrl() { 3416 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3417 return h != null ? h.getUrl() : null; 3418 } 3419 3420 /** 3421 * See {@link WebView#getOriginalUrl()} 3422 */ 3423 @Override 3424 public String getOriginalUrl() { 3425 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3426 return h != null ? h.getOriginalUrl() : null; 3427 } 3428 3429 /** 3430 * See {@link WebView#getTitle()} 3431 */ 3432 @Override 3433 public String getTitle() { 3434 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3435 return h != null ? h.getTitle() : null; 3436 } 3437 3438 /** 3439 * See {@link WebView#getFavicon()} 3440 */ 3441 @Override 3442 public Bitmap getFavicon() { 3443 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3444 return h != null ? h.getFavicon() : null; 3445 } 3446 3447 /** 3448 * See {@link WebView#getTouchIconUrl()} 3449 */ 3450 @Override 3451 public String getTouchIconUrl() { 3452 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3453 return h != null ? h.getTouchIconUrl() : null; 3454 } 3455 3456 /** 3457 * See {@link WebView#getProgress()} 3458 */ 3459 @Override 3460 public int getProgress() { 3461 return mCallbackProxy.getProgress(); 3462 } 3463 3464 /** 3465 * See {@link WebView#getContentHeight()} 3466 */ 3467 @Override 3468 public int getContentHeight() { 3469 return mContentHeight; 3470 } 3471 3472 /** 3473 * See {@link WebView#getContentWidth()} 3474 */ 3475 @Override 3476 public int getContentWidth() { 3477 return mContentWidth; 3478 } 3479 3480 public int getPageBackgroundColor() { 3481 return nativeGetBackgroundColor(); 3482 } 3483 3484 /** 3485 * See {@link WebView#pauseTimers()} 3486 */ 3487 @Override 3488 public void pauseTimers() { 3489 mWebViewCore.sendMessage(EventHub.PAUSE_TIMERS); 3490 } 3491 3492 /** 3493 * See {@link WebView#resumeTimers()} 3494 */ 3495 @Override 3496 public void resumeTimers() { 3497 mWebViewCore.sendMessage(EventHub.RESUME_TIMERS); 3498 } 3499 3500 /** 3501 * See {@link WebView#onPause()} 3502 */ 3503 @Override 3504 public void onPause() { 3505 if (!mIsPaused) { 3506 mIsPaused = true; 3507 mWebViewCore.sendMessage(EventHub.ON_PAUSE); 3508 // We want to pause the current playing video when switching out 3509 // from the current WebView/tab. 3510 if (mHTML5VideoViewProxy != null) { 3511 mHTML5VideoViewProxy.pauseAndDispatch(); 3512 } 3513 if (mNativeClass != 0) { 3514 nativeSetPauseDrawing(mNativeClass, true); 3515 } 3516 3517 cancelSelectDialog(); 3518 WebCoreThreadWatchdog.pause(); 3519 } 3520 } 3521 3522 @Override 3523 public void onWindowVisibilityChanged(int visibility) { 3524 updateDrawingState(); 3525 } 3526 3527 void updateDrawingState() { 3528 if (mNativeClass == 0 || mIsPaused) return; 3529 if (mWebView.getWindowVisibility() != View.VISIBLE) { 3530 nativeSetPauseDrawing(mNativeClass, true); 3531 } else if (mWebView.getVisibility() != View.VISIBLE) { 3532 nativeSetPauseDrawing(mNativeClass, true); 3533 } else { 3534 nativeSetPauseDrawing(mNativeClass, false); 3535 } 3536 } 3537 3538 /** 3539 * See {@link WebView#onResume()} 3540 */ 3541 @Override 3542 public void onResume() { 3543 if (mIsPaused) { 3544 mIsPaused = false; 3545 mWebViewCore.sendMessage(EventHub.ON_RESUME); 3546 if (mNativeClass != 0) { 3547 nativeSetPauseDrawing(mNativeClass, false); 3548 } 3549 } 3550 // Ensure that the watchdog has a currently valid Context to be able to display 3551 // a prompt dialog. For example, if the Activity was finished whilst the WebCore 3552 // thread was blocked and the Activity is started again, we may reuse the blocked 3553 // thread, but we'll have a new Activity. 3554 WebCoreThreadWatchdog.updateContext(mContext); 3555 // We get a call to onResume for new WebViews (i.e. mIsPaused will be false). We need 3556 // to ensure that the Watchdog thread is running for the new WebView, so call 3557 // it outside the if block above. 3558 WebCoreThreadWatchdog.resume(); 3559 } 3560 3561 /** 3562 * See {@link WebView#isPaused()} 3563 */ 3564 @Override 3565 public boolean isPaused() { 3566 return mIsPaused; 3567 } 3568 3569 /** 3570 * See {@link WebView#freeMemory()} 3571 */ 3572 @Override 3573 public void freeMemory() { 3574 mWebViewCore.sendMessage(EventHub.FREE_MEMORY); 3575 } 3576 3577 /** 3578 * See {@link WebView#clearCache(boolean)} 3579 */ 3580 @Override 3581 public void clearCache(boolean includeDiskFiles) { 3582 // Note: this really needs to be a static method as it clears cache for all 3583 // WebView. But we need mWebViewCore to send message to WebCore thread, so 3584 // we can't make this static. 3585 mWebViewCore.sendMessage(EventHub.CLEAR_CACHE, 3586 includeDiskFiles ? 1 : 0, 0); 3587 } 3588 3589 /** 3590 * See {@link WebView#clearFormData()} 3591 */ 3592 @Override 3593 public void clearFormData() { 3594 if (mAutoCompletePopup != null) { 3595 mAutoCompletePopup.clearAdapter(); 3596 } 3597 } 3598 3599 /** 3600 * See {@link WebView#clearHistory()} 3601 */ 3602 @Override 3603 public void clearHistory() { 3604 mCallbackProxy.getBackForwardList().setClearPending(); 3605 mWebViewCore.sendMessage(EventHub.CLEAR_HISTORY); 3606 } 3607 3608 /** 3609 * See {@link WebView#clearSslPreferences()} 3610 */ 3611 @Override 3612 public void clearSslPreferences() { 3613 mWebViewCore.sendMessage(EventHub.CLEAR_SSL_PREF_TABLE); 3614 } 3615 3616 /** 3617 * See {@link WebView#copyBackForwardList()} 3618 */ 3619 @Override 3620 public WebBackForwardList copyBackForwardList() { 3621 return mCallbackProxy.getBackForwardList().clone(); 3622 } 3623 3624 /** 3625 * See {@link WebView#setFindListener(WebView.FindListener)}. 3626 * @hide 3627 */ 3628 public void setFindListener(WebView.FindListener listener) { 3629 mFindListener = listener; 3630 } 3631 3632 /** 3633 * See {@link WebView#findNext(boolean)} 3634 */ 3635 @Override 3636 public void findNext(boolean forward) { 3637 if (0 == mNativeClass) return; // client isn't initialized 3638 if (mFindRequest != null) { 3639 mWebViewCore.sendMessage(EventHub.FIND_NEXT, forward ? 1 : 0, mFindRequest); 3640 } 3641 } 3642 3643 /** 3644 * See {@link WebView#findAll(String)} 3645 */ 3646 @Override 3647 public int findAll(String find) { 3648 return findAllBody(find, false); 3649 } 3650 3651 public void findAllAsync(String find) { 3652 findAllBody(find, true); 3653 } 3654 3655 private int findAllBody(String find, boolean isAsync) { 3656 if (0 == mNativeClass) return 0; // client isn't initialized 3657 mFindRequest = null; 3658 if (find == null) return 0; 3659 mWebViewCore.removeMessages(EventHub.FIND_ALL); 3660 mFindRequest = new WebViewCore.FindAllRequest(find); 3661 if (isAsync) { 3662 mWebViewCore.sendMessage(EventHub.FIND_ALL, mFindRequest); 3663 return 0; // no need to wait for response 3664 } 3665 synchronized(mFindRequest) { 3666 try { 3667 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.FIND_ALL, mFindRequest); 3668 while (mFindRequest.mMatchCount == -1) { 3669 mFindRequest.wait(); 3670 } 3671 } 3672 catch (InterruptedException e) { 3673 return 0; 3674 } 3675 return mFindRequest.mMatchCount; 3676 } 3677 } 3678 3679 /** 3680 * Start an ActionMode for finding text in this WebView. Only works if this 3681 * WebView is attached to the view system. 3682 * @param text If non-null, will be the initial text to search for. 3683 * Otherwise, the last String searched for in this WebView will 3684 * be used to start. 3685 * @param showIme If true, show the IME, assuming the user will begin typing. 3686 * If false and text is non-null, perform a find all. 3687 * @return boolean True if the find dialog is shown, false otherwise. 3688 */ 3689 public boolean showFindDialog(String text, boolean showIme) { 3690 FindActionModeCallback callback = new FindActionModeCallback(mContext); 3691 if (mWebView.getParent() == null || mWebView.startActionMode(callback) == null) { 3692 // Could not start the action mode, so end Find on page 3693 return false; 3694 } 3695 mCachedOverlappingActionModeHeight = -1; 3696 mFindCallback = callback; 3697 setFindIsUp(true); 3698 mFindCallback.setWebView(this); 3699 if (showIme) { 3700 mFindCallback.showSoftInput(); 3701 } else if (text != null) { 3702 mFindCallback.setText(text); 3703 mFindCallback.findAll(); 3704 return true; 3705 } 3706 if (text == null) { 3707 text = mFindRequest == null ? null : mFindRequest.mSearchText; 3708 } 3709 if (text != null) { 3710 mFindCallback.setText(text); 3711 mFindCallback.findAll(); 3712 } 3713 return true; 3714 } 3715 3716 /** 3717 * Keep track of the find callback so that we can remove its titlebar if 3718 * necessary. 3719 */ 3720 private FindActionModeCallback mFindCallback; 3721 3722 /** 3723 * Toggle whether the find dialog is showing, for both native and Java. 3724 */ 3725 private void setFindIsUp(boolean isUp) { 3726 mFindIsUp = isUp; 3727 } 3728 3729 // Used to know whether the find dialog is open. Affects whether 3730 // or not we draw the highlights for matches. 3731 private boolean mFindIsUp; 3732 3733 // Keep track of the last find request sent. 3734 private WebViewCore.FindAllRequest mFindRequest = null; 3735 3736 /** 3737 * Return the first substring consisting of the address of a physical 3738 * location. Currently, only addresses in the United States are detected, 3739 * and consist of: 3740 * - a house number 3741 * - a street name 3742 * - a street type (Road, Circle, etc), either spelled out or abbreviated 3743 * - a city name 3744 * - a state or territory, either spelled out or two-letter abbr. 3745 * - an optional 5 digit or 9 digit zip code. 3746 * 3747 * All names must be correctly capitalized, and the zip code, if present, 3748 * must be valid for the state. The street type must be a standard USPS 3749 * spelling or abbreviation. The state or territory must also be spelled 3750 * or abbreviated using USPS standards. The house number may not exceed 3751 * five digits. 3752 * @param addr The string to search for addresses. 3753 * 3754 * @return the address, or if no address is found, return null. 3755 */ 3756 public static String findAddress(String addr) { 3757 return findAddress(addr, false); 3758 } 3759 3760 /** 3761 * Return the first substring consisting of the address of a physical 3762 * location. Currently, only addresses in the United States are detected, 3763 * and consist of: 3764 * - a house number 3765 * - a street name 3766 * - a street type (Road, Circle, etc), either spelled out or abbreviated 3767 * - a city name 3768 * - a state or territory, either spelled out or two-letter abbr. 3769 * - an optional 5 digit or 9 digit zip code. 3770 * 3771 * Names are optionally capitalized, and the zip code, if present, 3772 * must be valid for the state. The street type must be a standard USPS 3773 * spelling or abbreviation. The state or territory must also be spelled 3774 * or abbreviated using USPS standards. The house number may not exceed 3775 * five digits. 3776 * @param addr The string to search for addresses. 3777 * @param caseInsensitive addr Set to true to make search ignore case. 3778 * 3779 * @return the address, or if no address is found, return null. 3780 */ 3781 public static String findAddress(String addr, boolean caseInsensitive) { 3782 return WebViewCore.nativeFindAddress(addr, caseInsensitive); 3783 } 3784 3785 /** 3786 * See {@link WebView#clearMatches()} 3787 */ 3788 @Override 3789 public void clearMatches() { 3790 if (mNativeClass == 0) 3791 return; 3792 mWebViewCore.removeMessages(EventHub.FIND_ALL); 3793 mWebViewCore.sendMessage(EventHub.FIND_ALL, null); 3794 } 3795 3796 3797 /** 3798 * Called when the find ActionMode ends. 3799 */ 3800 void notifyFindDialogDismissed() { 3801 mFindCallback = null; 3802 mCachedOverlappingActionModeHeight = -1; 3803 if (mWebViewCore == null) { 3804 return; 3805 } 3806 clearMatches(); 3807 setFindIsUp(false); 3808 // Now that the dialog has been removed, ensure that we scroll to a 3809 // location that is not beyond the end of the page. 3810 pinScrollTo(getScrollX(), getScrollY(), false, 0); 3811 invalidate(); 3812 } 3813 3814 /** 3815 * See {@link WebView#documentHasImages(Message)} 3816 */ 3817 @Override 3818 public void documentHasImages(Message response) { 3819 if (response == null) { 3820 return; 3821 } 3822 mWebViewCore.sendMessage(EventHub.DOC_HAS_IMAGES, response); 3823 } 3824 3825 /** 3826 * Request the scroller to abort any ongoing animation 3827 */ 3828 public void stopScroll() { 3829 mScroller.forceFinished(true); 3830 mLastVelocity = 0; 3831 } 3832 3833 @Override 3834 public void computeScroll() { 3835 if (mScroller.computeScrollOffset()) { 3836 int oldX = getScrollX(); 3837 int oldY = getScrollY(); 3838 int x = mScroller.getCurrX(); 3839 int y = mScroller.getCurrY(); 3840 invalidate(); // So we draw again 3841 3842 if (!mScroller.isFinished()) { 3843 int rangeX = computeMaxScrollX(); 3844 int rangeY = computeMaxScrollY(); 3845 int overflingDistance = mOverflingDistance; 3846 3847 // Use the layer's scroll data if needed. 3848 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3849 oldX = mScrollingLayerRect.left; 3850 oldY = mScrollingLayerRect.top; 3851 rangeX = mScrollingLayerRect.right; 3852 rangeY = mScrollingLayerRect.bottom; 3853 // No overscrolling for layers. 3854 overflingDistance = 0; 3855 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3856 oldX = getTextScrollX(); 3857 oldY = getTextScrollY(); 3858 rangeX = getMaxTextScrollX(); 3859 rangeY = getMaxTextScrollY(); 3860 overflingDistance = 0; 3861 } 3862 3863 mWebViewPrivate.overScrollBy(x - oldX, y - oldY, oldX, oldY, 3864 rangeX, rangeY, 3865 overflingDistance, overflingDistance, false); 3866 3867 if (mOverScrollGlow != null) { 3868 mOverScrollGlow.absorbGlow(x, y, oldX, oldY, rangeX, rangeY); 3869 } 3870 } else { 3871 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3872 // Update the layer position instead of WebView. 3873 scrollLayerTo(x, y); 3874 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3875 scrollEditText(x, y); 3876 } else { 3877 setScrollXRaw(x); 3878 setScrollYRaw(y); 3879 } 3880 abortAnimation(); 3881 nativeSetIsScrolling(false); 3882 if (!mBlockWebkitViewMessages) { 3883 WebViewCore.resumePriority(); 3884 if (!mSelectingText) { 3885 WebViewCore.resumeUpdatePicture(mWebViewCore); 3886 } 3887 } 3888 if (oldX != getScrollX() || oldY != getScrollY()) { 3889 sendOurVisibleRect(); 3890 } 3891 } 3892 } else { 3893 mWebViewPrivate.super_computeScroll(); 3894 } 3895 } 3896 3897 private void scrollLayerTo(int x, int y) { 3898 int dx = mScrollingLayerRect.left - x; 3899 int dy = mScrollingLayerRect.top - y; 3900 if (dx == 0 && dy == 0) { 3901 return; 3902 } 3903 if (mSelectingText) { 3904 if (mSelectCursorBaseLayerId == mCurrentScrollingLayerId) { 3905 mSelectCursorBase.offset(dx, dy); 3906 mSelectCursorBaseTextQuad.offset(dx, dy); 3907 } 3908 if (mSelectCursorExtentLayerId == mCurrentScrollingLayerId) { 3909 mSelectCursorExtent.offset(dx, dy); 3910 mSelectCursorExtentTextQuad.offset(dx, dy); 3911 } 3912 } 3913 if (mAutoCompletePopup != null && 3914 mCurrentScrollingLayerId == mEditTextLayerId) { 3915 mEditTextBounds.offset(dx, dy); 3916 mAutoCompletePopup.resetRect(); 3917 } 3918 nativeScrollLayer(mCurrentScrollingLayerId, x, y); 3919 mScrollingLayerRect.left = x; 3920 mScrollingLayerRect.top = y; 3921 mWebViewCore.sendMessage(WebViewCore.EventHub.SCROLL_LAYER, mCurrentScrollingLayerId, 3922 mScrollingLayerRect); 3923 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), getScrollX(), getScrollY()); 3924 invalidate(); 3925 } 3926 3927 private static int computeDuration(int dx, int dy) { 3928 int distance = Math.max(Math.abs(dx), Math.abs(dy)); 3929 int duration = distance * 1000 / STD_SPEED; 3930 return Math.min(duration, MAX_DURATION); 3931 } 3932 3933 // helper to pin the scrollBy parameters (already in view coordinates) 3934 // returns true if the scroll was changed 3935 private boolean pinScrollBy(int dx, int dy, boolean animate, int animationDuration) { 3936 return pinScrollTo(getScrollX() + dx, getScrollY() + dy, animate, animationDuration); 3937 } 3938 // helper to pin the scrollTo parameters (already in view coordinates) 3939 // returns true if the scroll was changed 3940 private boolean pinScrollTo(int x, int y, boolean animate, int animationDuration) { 3941 abortAnimation(); 3942 x = pinLocX(x); 3943 y = pinLocY(y); 3944 int dx = x - getScrollX(); 3945 int dy = y - getScrollY(); 3946 3947 if ((dx | dy) == 0) { 3948 return false; 3949 } 3950 if (animate) { 3951 // Log.d(LOGTAG, "startScroll: " + dx + " " + dy); 3952 mScroller.startScroll(getScrollX(), getScrollY(), dx, dy, 3953 animationDuration > 0 ? animationDuration : computeDuration(dx, dy)); 3954 mWebViewPrivate.awakenScrollBars(mScroller.getDuration()); 3955 invalidate(); 3956 } else { 3957 mWebView.scrollTo(x, y); 3958 } 3959 return true; 3960 } 3961 3962 // Scale from content to view coordinates, and pin. 3963 // Also called by jni webview.cpp 3964 private boolean setContentScrollBy(int cx, int cy, boolean animate) { 3965 if (mDrawHistory) { 3966 // disallow WebView to change the scroll position as History Picture 3967 // is used in the view system. 3968 // TODO: as we switchOutDrawHistory when trackball or navigation 3969 // keys are hit, this should be safe. Right? 3970 return false; 3971 } 3972 cx = contentToViewDimension(cx); 3973 cy = contentToViewDimension(cy); 3974 if (mHeightCanMeasure) { 3975 // move our visible rect according to scroll request 3976 if (cy != 0) { 3977 Rect tempRect = new Rect(); 3978 calcOurVisibleRect(tempRect); 3979 tempRect.offset(cx, cy); 3980 mWebView.requestRectangleOnScreen(tempRect); 3981 } 3982 // FIXME: We scroll horizontally no matter what because currently 3983 // ScrollView and ListView will not scroll horizontally. 3984 // FIXME: Why do we only scroll horizontally if there is no 3985 // vertical scroll? 3986// Log.d(LOGTAG, "setContentScrollBy cy=" + cy); 3987 return cy == 0 && cx != 0 && pinScrollBy(cx, 0, animate, 0); 3988 } else { 3989 return pinScrollBy(cx, cy, animate, 0); 3990 } 3991 } 3992 3993 /** 3994 * Called by CallbackProxy when the page starts loading. 3995 * @param url The URL of the page which has started loading. 3996 */ 3997 /* package */ void onPageStarted(String url) { 3998 // every time we start a new page, we want to reset the 3999 // WebView certificate: if the new site is secure, we 4000 // will reload it and get a new certificate set; 4001 // if the new site is not secure, the certificate must be 4002 // null, and that will be the case 4003 mWebView.setCertificate(null); 4004 4005 // reset the flag since we set to true in if need after 4006 // loading is see onPageFinished(Url) 4007 mAccessibilityScriptInjected = false; 4008 } 4009 4010 /** 4011 * Called by CallbackProxy when the page finishes loading. 4012 * @param url The URL of the page which has finished loading. 4013 */ 4014 /* package */ void onPageFinished(String url) { 4015 if (mPageThatNeedsToSlideTitleBarOffScreen != null) { 4016 // If the user is now on a different page, or has scrolled the page 4017 // past the point where the title bar is offscreen, ignore the 4018 // scroll request. 4019 if (mPageThatNeedsToSlideTitleBarOffScreen.equals(url) 4020 && getScrollX() == 0 && getScrollY() == 0) { 4021 pinScrollTo(0, mYDistanceToSlideTitleOffScreen, true, 4022 SLIDE_TITLE_DURATION); 4023 } 4024 mPageThatNeedsToSlideTitleBarOffScreen = null; 4025 } 4026 mZoomManager.onPageFinished(url); 4027 injectAccessibilityForUrl(url); 4028 } 4029 4030 /** 4031 * This method injects accessibility in the loaded document if accessibility 4032 * is enabled. If JavaScript is enabled we try to inject a URL specific script. 4033 * If no URL specific script is found or JavaScript is disabled we fallback to 4034 * the default {@link AccessibilityInjector} implementation. 4035 * </p> 4036 * If the URL has the "axs" paramter set to 1 it has already done the 4037 * script injection so we do nothing. If the parameter is set to 0 4038 * the URL opts out accessibility script injection so we fall back to 4039 * the default {@link AccessibilityInjector}. 4040 * </p> 4041 * Note: If the user has not opted-in the accessibility script injection no scripts 4042 * are injected rather the default {@link AccessibilityInjector} implementation 4043 * is used. 4044 * 4045 * @param url The URL loaded by this {@link WebView}. 4046 */ 4047 private void injectAccessibilityForUrl(String url) { 4048 if (mWebViewCore == null) { 4049 return; 4050 } 4051 AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(mContext); 4052 4053 if (!accessibilityManager.isEnabled()) { 4054 // it is possible that accessibility was turned off between reloads 4055 ensureAccessibilityScriptInjectorInstance(false); 4056 return; 4057 } 4058 4059 if (!getSettings().getJavaScriptEnabled()) { 4060 // no JS so we fallback to the basic buil-in support 4061 ensureAccessibilityScriptInjectorInstance(true); 4062 return; 4063 } 4064 4065 // check the URL "axs" parameter to choose appropriate action 4066 int axsParameterValue = getAxsUrlParameterValue(url); 4067 if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED) { 4068 boolean onDeviceScriptInjectionEnabled = (Settings.Secure.getInt(mContext 4069 .getContentResolver(), Settings.Secure.ACCESSIBILITY_SCRIPT_INJECTION, 0) == 1); 4070 if (onDeviceScriptInjectionEnabled) { 4071 ensureAccessibilityScriptInjectorInstance(false); 4072 // neither script injected nor script injection opted out => we inject 4073 mWebView.loadUrl(getScreenReaderInjectingJs()); 4074 // TODO: Set this flag after successfull script injection. Maybe upon injection 4075 // the chooser should update the meta tag and we check it to declare success 4076 mAccessibilityScriptInjected = true; 4077 } else { 4078 // injection disabled so we fallback to the basic built-in support 4079 ensureAccessibilityScriptInjectorInstance(true); 4080 } 4081 } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT) { 4082 // injection opted out so we fallback to the basic buil-in support 4083 ensureAccessibilityScriptInjectorInstance(true); 4084 } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED) { 4085 ensureAccessibilityScriptInjectorInstance(false); 4086 // the URL provides accessibility but we still need to add our generic script 4087 mWebView.loadUrl(getScreenReaderInjectingJs()); 4088 } else { 4089 Log.e(LOGTAG, "Unknown URL value for the \"axs\" URL parameter: " + axsParameterValue); 4090 } 4091 } 4092 4093 /** 4094 * Ensures the instance of the {@link AccessibilityInjector} to be present ot not. 4095 * 4096 * @param present True to ensure an insance, false to ensure no instance. 4097 */ 4098 private void ensureAccessibilityScriptInjectorInstance(boolean present) { 4099 if (present) { 4100 if (mAccessibilityInjector == null) { 4101 mAccessibilityInjector = new AccessibilityInjector(this); 4102 } 4103 } else { 4104 mAccessibilityInjector = null; 4105 } 4106 } 4107 4108 /** 4109 * Gets JavaScript that injects a screen-reader. 4110 * 4111 * @return The JavaScript snippet. 4112 */ 4113 private String getScreenReaderInjectingJs() { 4114 String screenReaderUrl = Settings.Secure.getString(mContext.getContentResolver(), 4115 Settings.Secure.ACCESSIBILITY_SCREEN_READER_URL); 4116 return String.format(ACCESSIBILITY_SCREEN_READER_JAVASCRIPT_TEMPLATE, screenReaderUrl); 4117 } 4118 4119 /** 4120 * Gets the "axs" URL parameter value. 4121 * 4122 * @param url A url to fetch the paramter from. 4123 * @return The parameter value if such, -1 otherwise. 4124 */ 4125 private int getAxsUrlParameterValue(String url) { 4126 if (mMatchAxsUrlParameterPattern == null) { 4127 mMatchAxsUrlParameterPattern = Pattern.compile(PATTERN_MATCH_AXS_URL_PARAMETER); 4128 } 4129 Matcher matcher = mMatchAxsUrlParameterPattern.matcher(url); 4130 if (matcher.find()) { 4131 String keyValuePair = url.substring(matcher.start(), matcher.end()); 4132 return Integer.parseInt(keyValuePair.split("=")[1]); 4133 } 4134 return -1; 4135 } 4136 4137 /** 4138 * The URL of a page that sent a message to scroll the title bar off screen. 4139 * 4140 * Many mobile sites tell the page to scroll to (0,1) in order to scroll the 4141 * title bar off the screen. Sometimes, the scroll position is set before 4142 * the page finishes loading. Rather than scrolling while the page is still 4143 * loading, keep track of the URL and new scroll position so we can perform 4144 * the scroll once the page finishes loading. 4145 */ 4146 private String mPageThatNeedsToSlideTitleBarOffScreen; 4147 4148 /** 4149 * The destination Y scroll position to be used when the page finishes 4150 * loading. See mPageThatNeedsToSlideTitleBarOffScreen. 4151 */ 4152 private int mYDistanceToSlideTitleOffScreen; 4153 4154 // scale from content to view coordinates, and pin 4155 // return true if pin caused the final x/y different than the request cx/cy, 4156 // and a future scroll may reach the request cx/cy after our size has 4157 // changed 4158 // return false if the view scroll to the exact position as it is requested, 4159 // where negative numbers are taken to mean 0 4160 private boolean setContentScrollTo(int cx, int cy) { 4161 if (mDrawHistory) { 4162 // disallow WebView to change the scroll position as History Picture 4163 // is used in the view system. 4164 // One known case where this is called is that WebCore tries to 4165 // restore the scroll position. As history Picture already uses the 4166 // saved scroll position, it is ok to skip this. 4167 return false; 4168 } 4169 int vx; 4170 int vy; 4171 if ((cx | cy) == 0) { 4172 // If the page is being scrolled to (0,0), do not add in the title 4173 // bar's height, and simply scroll to (0,0). (The only other work 4174 // in contentToView_ is to multiply, so this would not change 0.) 4175 vx = 0; 4176 vy = 0; 4177 } else { 4178 vx = contentToViewX(cx); 4179 vy = contentToViewY(cy); 4180 } 4181// Log.d(LOGTAG, "content scrollTo [" + cx + " " + cy + "] view=[" + 4182// vx + " " + vy + "]"); 4183 // Some mobile sites attempt to scroll the title bar off the page by 4184 // scrolling to (0,1). If we are at the top left corner of the 4185 // page, assume this is an attempt to scroll off the title bar, and 4186 // animate the title bar off screen slowly enough that the user can see 4187 // it. 4188 if (cx == 0 && cy == 1 && getScrollX() == 0 && getScrollY() == 0 4189 && mTitleBar != null) { 4190 // FIXME: 100 should be defined somewhere as our max progress. 4191 if (getProgress() < 100) { 4192 // Wait to scroll the title bar off screen until the page has 4193 // finished loading. Keep track of the URL and the destination 4194 // Y position 4195 mPageThatNeedsToSlideTitleBarOffScreen = getUrl(); 4196 mYDistanceToSlideTitleOffScreen = vy; 4197 } else { 4198 pinScrollTo(vx, vy, true, SLIDE_TITLE_DURATION); 4199 } 4200 // Since we are animating, we have not yet reached the desired 4201 // scroll position. Do not return true to request another attempt 4202 return false; 4203 } 4204 pinScrollTo(vx, vy, false, 0); 4205 // If the request was to scroll to a negative coordinate, treat it as if 4206 // it was a request to scroll to 0 4207 if ((getScrollX() != vx && cx >= 0) || (getScrollY() != vy && cy >= 0)) { 4208 return true; 4209 } else { 4210 return false; 4211 } 4212 } 4213 4214 // scale from content to view coordinates, and pin 4215 private void spawnContentScrollTo(int cx, int cy) { 4216 if (mDrawHistory) { 4217 // disallow WebView to change the scroll position as History Picture 4218 // is used in the view system. 4219 return; 4220 } 4221 int vx = contentToViewDimension(cx - mScrollOffset.x); 4222 int vy = contentToViewDimension(cy - mScrollOffset.y); 4223 pinScrollBy(vx, vy, true, 0); 4224 } 4225 4226 /** 4227 * These are from webkit, and are in content coordinate system (unzoomed) 4228 */ 4229 private void contentSizeChanged(boolean updateLayout) { 4230 // suppress 0,0 since we usually see real dimensions soon after 4231 // this avoids drawing the prev content in a funny place. If we find a 4232 // way to consolidate these notifications, this check may become 4233 // obsolete 4234 if ((mContentWidth | mContentHeight) == 0) { 4235 return; 4236 } 4237 4238 if (mHeightCanMeasure) { 4239 if (mWebView.getMeasuredHeight() != contentToViewDimension(mContentHeight) 4240 || updateLayout) { 4241 mWebView.requestLayout(); 4242 } 4243 } else if (mWidthCanMeasure) { 4244 if (mWebView.getMeasuredWidth() != contentToViewDimension(mContentWidth) 4245 || updateLayout) { 4246 mWebView.requestLayout(); 4247 } 4248 } else { 4249 // If we don't request a layout, try to send our view size to the 4250 // native side to ensure that WebCore has the correct dimensions. 4251 sendViewSizeZoom(false); 4252 } 4253 } 4254 4255 /** 4256 * See {@link WebView#setWebViewClient(WebViewClient)} 4257 */ 4258 @Override 4259 public void setWebViewClient(WebViewClient client) { 4260 mCallbackProxy.setWebViewClient(client); 4261 } 4262 4263 /** 4264 * Gets the WebViewClient 4265 * @return the current WebViewClient instance. 4266 * 4267 * This is an implementation detail. 4268 */ 4269 public WebViewClient getWebViewClient() { 4270 return mCallbackProxy.getWebViewClient(); 4271 } 4272 4273 /** 4274 * See {@link WebView#setDownloadListener(DownloadListener)} 4275 */ 4276 @Override 4277 public void setDownloadListener(DownloadListener listener) { 4278 mCallbackProxy.setDownloadListener(listener); 4279 } 4280 4281 /** 4282 * See {@link WebView#setWebChromeClient(WebChromeClient)} 4283 */ 4284 @Override 4285 public void setWebChromeClient(WebChromeClient client) { 4286 mCallbackProxy.setWebChromeClient(client); 4287 } 4288 4289 /** 4290 * Gets the chrome handler. 4291 * @return the current WebChromeClient instance. 4292 * 4293 * This is an implementation detail. 4294 */ 4295 public WebChromeClient getWebChromeClient() { 4296 return mCallbackProxy.getWebChromeClient(); 4297 } 4298 4299 /** 4300 * Set the back/forward list client. This is an implementation of 4301 * WebBackForwardListClient for handling new items and changes in the 4302 * history index. 4303 * @param client An implementation of WebBackForwardListClient. 4304 */ 4305 public void setWebBackForwardListClient(WebBackForwardListClient client) { 4306 mCallbackProxy.setWebBackForwardListClient(client); 4307 } 4308 4309 /** 4310 * Gets the WebBackForwardListClient. 4311 */ 4312 public WebBackForwardListClient getWebBackForwardListClient() { 4313 return mCallbackProxy.getWebBackForwardListClient(); 4314 } 4315 4316 /** 4317 * See {@link WebView#setPictureListener(PictureListener)} 4318 */ 4319 @Override 4320 @Deprecated 4321 public void setPictureListener(PictureListener listener) { 4322 mPictureListener = listener; 4323 } 4324 4325 /* FIXME: Debug only! Remove for SDK! */ 4326 public void externalRepresentation(Message callback) { 4327 mWebViewCore.sendMessage(EventHub.REQUEST_EXT_REPRESENTATION, callback); 4328 } 4329 4330 /* FIXME: Debug only! Remove for SDK! */ 4331 public void documentAsText(Message callback) { 4332 mWebViewCore.sendMessage(EventHub.REQUEST_DOC_AS_TEXT, callback); 4333 } 4334 4335 /** 4336 * See {@link WebView#addJavascriptInterface(Object, String)} 4337 */ 4338 @Override 4339 public void addJavascriptInterface(Object object, String name) { 4340 if (object == null) { 4341 return; 4342 } 4343 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 4344 arg.mObject = object; 4345 arg.mInterfaceName = name; 4346 mWebViewCore.sendMessage(EventHub.ADD_JS_INTERFACE, arg); 4347 } 4348 4349 /** 4350 * See {@link WebView#removeJavascriptInterface(String)} 4351 */ 4352 @Override 4353 public void removeJavascriptInterface(String interfaceName) { 4354 if (mWebViewCore != null) { 4355 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 4356 arg.mInterfaceName = interfaceName; 4357 mWebViewCore.sendMessage(EventHub.REMOVE_JS_INTERFACE, arg); 4358 } 4359 } 4360 4361 /** 4362 * See {@link WebView#getSettings()} 4363 * Note this returns WebSettingsClassic, a sub-class of WebSettings, which can be used 4364 * to access extension APIs. 4365 */ 4366 @Override 4367 public WebSettingsClassic getSettings() { 4368 return (mWebViewCore != null) ? mWebViewCore.getSettings() : null; 4369 } 4370 4371 /** 4372 * See {@link WebView#getPluginList()} 4373 */ 4374 @Deprecated 4375 public static synchronized PluginList getPluginList() { 4376 return new PluginList(); 4377 } 4378 4379 /** 4380 * See {@link WebView#refreshPlugins(boolean)} 4381 */ 4382 @Deprecated 4383 public void refreshPlugins(boolean reloadOpenPages) { 4384 } 4385 4386 //------------------------------------------------------------------------- 4387 // Override View methods 4388 //------------------------------------------------------------------------- 4389 4390 @Override 4391 protected void finalize() throws Throwable { 4392 try { 4393 if (mNativeClass != 0) { 4394 mPrivateHandler.post(new Runnable() { 4395 @Override 4396 public void run() { 4397 destroy(); 4398 } 4399 }); 4400 } 4401 } finally { 4402 super.finalize(); 4403 } 4404 } 4405 4406 @Override 4407 public boolean drawChild(Canvas canvas, View child, long drawingTime) { 4408 if (child == mTitleBar) { 4409 // When drawing the title bar, move it horizontally to always show 4410 // at the top of the WebView. 4411 mTitleBar.offsetLeftAndRight(getScrollX() - mTitleBar.getLeft()); 4412 int newTop = 0; 4413 if (mTitleGravity == Gravity.NO_GRAVITY) { 4414 newTop = Math.min(0, getScrollY()); 4415 } else if (mTitleGravity == Gravity.TOP) { 4416 newTop = getScrollY(); 4417 } 4418 mTitleBar.setBottom(newTop + mTitleBar.getHeight()); 4419 mTitleBar.setTop(newTop); 4420 } 4421 return false; // We never call invalidate(), so unconditionally returning false. 4422 } 4423 4424 private void drawContent(Canvas canvas) { 4425 if (mDrawHistory) { 4426 canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); 4427 canvas.drawPicture(mHistoryPicture); 4428 return; 4429 } 4430 if (mNativeClass == 0) return; 4431 4432 boolean animateZoom = mZoomManager.isFixedLengthAnimationInProgress(); 4433 boolean animateScroll = ((!mScroller.isFinished() 4434 || mVelocityTracker != null) 4435 && (mTouchMode != TOUCH_DRAG_MODE || 4436 mHeldMotionless != MOTIONLESS_TRUE)) 4437 || mDeferTouchMode == TOUCH_DRAG_MODE; 4438 if (mTouchMode == TOUCH_DRAG_MODE) { 4439 if (mHeldMotionless == MOTIONLESS_PENDING) { 4440 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 4441 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 4442 mHeldMotionless = MOTIONLESS_FALSE; 4443 } 4444 if (mHeldMotionless == MOTIONLESS_FALSE) { 4445 mPrivateHandler.sendMessageDelayed(mPrivateHandler 4446 .obtainMessage(DRAG_HELD_MOTIONLESS), MOTIONLESS_TIME); 4447 mPrivateHandler.sendMessageDelayed(mPrivateHandler 4448 .obtainMessage(AWAKEN_SCROLL_BARS), 4449 ViewConfiguration.getScrollDefaultDelay()); 4450 mHeldMotionless = MOTIONLESS_PENDING; 4451 } 4452 } 4453 int saveCount = canvas.save(); 4454 if (animateZoom) { 4455 mZoomManager.animateZoom(canvas); 4456 } else if (!canvas.isHardwareAccelerated()) { 4457 canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); 4458 } 4459 4460 boolean UIAnimationsRunning = false; 4461 // Currently for each draw we compute the animation values; 4462 // We may in the future decide to do that independently. 4463 if (mNativeClass != 0 && !canvas.isHardwareAccelerated() 4464 && nativeEvaluateLayersAnimations(mNativeClass)) { 4465 UIAnimationsRunning = true; 4466 // If we have unfinished (or unstarted) animations, 4467 // we ask for a repaint. We only need to do this in software 4468 // rendering (with hardware rendering we already have a different 4469 // method of requesting a repaint) 4470 mWebViewCore.sendMessage(EventHub.NOTIFY_ANIMATION_STARTED); 4471 invalidate(); 4472 } 4473 4474 // decide which adornments to draw 4475 int extras = DRAW_EXTRAS_NONE; 4476 if (!mFindIsUp && mSelectingText) { 4477 extras = DRAW_EXTRAS_SELECTION; 4478 } 4479 4480 calcOurContentVisibleRectF(mVisibleContentRect); 4481 if (canvas.isHardwareAccelerated()) { 4482 Rect glRectViewport = mGLViewportEmpty ? null : mGLRectViewport; 4483 Rect viewRectViewport = mGLViewportEmpty ? null : mViewRectViewport; 4484 4485 int functor = nativeGetDrawGLFunction(mNativeClass, glRectViewport, 4486 viewRectViewport, mVisibleContentRect, getScale(), extras); 4487 ((HardwareCanvas) canvas).callDrawGLFunction(functor); 4488 if (mHardwareAccelSkia != getSettings().getHardwareAccelSkiaEnabled()) { 4489 mHardwareAccelSkia = getSettings().getHardwareAccelSkiaEnabled(); 4490 nativeUseHardwareAccelSkia(mHardwareAccelSkia); 4491 } 4492 4493 } else { 4494 DrawFilter df = null; 4495 if (mZoomManager.isZoomAnimating() || UIAnimationsRunning) { 4496 df = mZoomFilter; 4497 } else if (animateScroll) { 4498 df = mScrollFilter; 4499 } 4500 canvas.setDrawFilter(df); 4501 // XXX: Revisit splitting content. Right now it causes a 4502 // synchronization problem with layers. 4503 int content = nativeDraw(canvas, mVisibleContentRect, mBackgroundColor, 4504 extras, false); 4505 canvas.setDrawFilter(null); 4506 if (!mBlockWebkitViewMessages && content != 0) { 4507 mWebViewCore.sendMessage(EventHub.SPLIT_PICTURE_SET, content, 0); 4508 } 4509 } 4510 4511 canvas.restoreToCount(saveCount); 4512 if (mSelectingText) { 4513 drawTextSelectionHandles(canvas); 4514 } 4515 4516 if (extras == DRAW_EXTRAS_CURSOR_RING) { 4517 if (mTouchMode == TOUCH_SHORTPRESS_START_MODE) { 4518 mTouchMode = TOUCH_SHORTPRESS_MODE; 4519 } 4520 } 4521 } 4522 4523 /** 4524 * Draw the background when beyond bounds 4525 * @param canvas Canvas to draw into 4526 */ 4527 private void drawOverScrollBackground(Canvas canvas) { 4528 if (mOverScrollBackground == null) { 4529 mOverScrollBackground = new Paint(); 4530 Bitmap bm = BitmapFactory.decodeResource( 4531 mContext.getResources(), 4532 com.android.internal.R.drawable.status_bar_background); 4533 mOverScrollBackground.setShader(new BitmapShader(bm, 4534 Shader.TileMode.REPEAT, Shader.TileMode.REPEAT)); 4535 mOverScrollBorder = new Paint(); 4536 mOverScrollBorder.setStyle(Paint.Style.STROKE); 4537 mOverScrollBorder.setStrokeWidth(0); 4538 mOverScrollBorder.setColor(0xffbbbbbb); 4539 } 4540 4541 int top = 0; 4542 int right = computeRealHorizontalScrollRange(); 4543 int bottom = top + computeRealVerticalScrollRange(); 4544 // first draw the background and anchor to the top of the view 4545 canvas.save(); 4546 canvas.translate(getScrollX(), getScrollY()); 4547 canvas.clipRect(-getScrollX(), top - getScrollY(), right - getScrollX(), bottom 4548 - getScrollY(), Region.Op.DIFFERENCE); 4549 canvas.drawPaint(mOverScrollBackground); 4550 canvas.restore(); 4551 // then draw the border 4552 canvas.drawRect(-1, top - 1, right, bottom, mOverScrollBorder); 4553 // next clip the region for the content 4554 canvas.clipRect(0, top, right, bottom); 4555 } 4556 4557 @Override 4558 public void onDraw(Canvas canvas) { 4559 if (inFullScreenMode()) { 4560 return; // no need to draw anything if we aren't visible. 4561 } 4562 // if mNativeClass is 0, the WebView is either destroyed or not 4563 // initialized. In either case, just draw the background color and return 4564 if (mNativeClass == 0) { 4565 canvas.drawColor(mBackgroundColor); 4566 return; 4567 } 4568 4569 // if both mContentWidth and mContentHeight are 0, it means there is no 4570 // valid Picture passed to WebView yet. This can happen when WebView 4571 // just starts. Draw the background and return. 4572 if ((mContentWidth | mContentHeight) == 0 && mHistoryPicture == null) { 4573 canvas.drawColor(mBackgroundColor); 4574 return; 4575 } 4576 4577 if (canvas.isHardwareAccelerated()) { 4578 mZoomManager.setHardwareAccelerated(); 4579 } else { 4580 mWebViewCore.resumeWebKitDraw(); 4581 } 4582 4583 int saveCount = canvas.save(); 4584 if (mInOverScrollMode && !getSettings() 4585 .getUseWebViewBackgroundForOverscrollBackground()) { 4586 drawOverScrollBackground(canvas); 4587 } 4588 if (mTitleBar != null) { 4589 canvas.translate(0, getTitleHeight()); 4590 } 4591 drawContent(canvas); 4592 canvas.restoreToCount(saveCount); 4593 4594 if (AUTO_REDRAW_HACK && mAutoRedraw) { 4595 invalidate(); 4596 } 4597 mWebViewCore.signalRepaintDone(); 4598 4599 if (mOverScrollGlow != null && mOverScrollGlow.drawEdgeGlows(canvas)) { 4600 invalidate(); 4601 } 4602 4603 if (mFocusTransition != null) { 4604 mFocusTransition.draw(canvas); 4605 } else if (shouldDrawHighlightRect()) { 4606 RegionIterator iter = new RegionIterator(mTouchHighlightRegion); 4607 Rect r = new Rect(); 4608 while (iter.next(r)) { 4609 canvas.drawRect(r, mTouchHightlightPaint); 4610 } 4611 } 4612 if (DEBUG_TOUCH_HIGHLIGHT) { 4613 if (getSettings().getNavDump()) { 4614 if ((mTouchHighlightX | mTouchHighlightY) != 0) { 4615 if (mTouchCrossHairColor == null) { 4616 mTouchCrossHairColor = new Paint(); 4617 mTouchCrossHairColor.setColor(Color.RED); 4618 } 4619 canvas.drawLine(mTouchHighlightX - mNavSlop, 4620 mTouchHighlightY - mNavSlop, mTouchHighlightX 4621 + mNavSlop + 1, mTouchHighlightY + mNavSlop 4622 + 1, mTouchCrossHairColor); 4623 canvas.drawLine(mTouchHighlightX + mNavSlop + 1, 4624 mTouchHighlightY - mNavSlop, mTouchHighlightX 4625 - mNavSlop, 4626 mTouchHighlightY + mNavSlop + 1, 4627 mTouchCrossHairColor); 4628 } 4629 } 4630 } 4631 } 4632 4633 private void removeTouchHighlight() { 4634 mWebViewCore.removeMessages(EventHub.HIT_TEST); 4635 mPrivateHandler.removeMessages(HIT_TEST_RESULT); 4636 setTouchHighlightRects(null); 4637 } 4638 4639 @Override 4640 public void setLayoutParams(ViewGroup.LayoutParams params) { 4641 if (params.height == AbsoluteLayout.LayoutParams.WRAP_CONTENT) { 4642 mWrapContent = true; 4643 } 4644 mWebViewPrivate.super_setLayoutParams(params); 4645 } 4646 4647 @Override 4648 public boolean performLongClick() { 4649 // performLongClick() is the result of a delayed message. If we switch 4650 // to windows overview, the WebView will be temporarily removed from the 4651 // view system. In that case, do nothing. 4652 if (mWebView.getParent() == null) return false; 4653 4654 // A multi-finger gesture can look like a long press; make sure we don't take 4655 // long press actions if we're scaling. 4656 final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); 4657 if (detector != null && detector.isInProgress()) { 4658 return false; 4659 } 4660 4661 if (mSelectingText) return false; // long click does nothing on selection 4662 /* if long click brings up a context menu, the super function 4663 * returns true and we're done. Otherwise, nothing happened when 4664 * the user clicked. */ 4665 if (mWebViewPrivate.super_performLongClick()) { 4666 return true; 4667 } 4668 /* In the case where the application hasn't already handled the long 4669 * click action, look for a word under the click. If one is found, 4670 * animate the text selection into view. 4671 * FIXME: no animation code yet */ 4672 final boolean isSelecting = selectText(); 4673 if (isSelecting) { 4674 mWebView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 4675 } else if (focusCandidateIsEditableText()) { 4676 mSelectCallback = new SelectActionModeCallback(); 4677 mSelectCallback.setWebView(this); 4678 mSelectCallback.setTextSelected(false); 4679 mWebView.startActionMode(mSelectCallback); 4680 } 4681 return isSelecting; 4682 } 4683 4684 /** 4685 * Select the word at the last click point. 4686 * 4687 * This is an implementation detail. 4688 */ 4689 public boolean selectText() { 4690 int x = viewToContentX(mLastTouchX + getScrollX()); 4691 int y = viewToContentY(mLastTouchY + getScrollY()); 4692 return selectText(x, y); 4693 } 4694 4695 /** 4696 * Select the word at the indicated content coordinates. 4697 */ 4698 boolean selectText(int x, int y) { 4699 mWebViewCore.sendMessage(EventHub.SELECT_WORD_AT, x, y); 4700 return true; 4701 } 4702 4703 private int mOrientation = Configuration.ORIENTATION_UNDEFINED; 4704 4705 @Override 4706 public void onConfigurationChanged(Configuration newConfig) { 4707 mCachedOverlappingActionModeHeight = -1; 4708 if (mSelectingText && mOrientation != newConfig.orientation) { 4709 selectionDone(); 4710 } 4711 mOrientation = newConfig.orientation; 4712 if (mWebViewCore != null && !mBlockWebkitViewMessages) { 4713 mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); 4714 } 4715 } 4716 4717 /** 4718 * Keep track of the Callback so we can end its ActionMode or remove its 4719 * titlebar. 4720 */ 4721 private SelectActionModeCallback mSelectCallback; 4722 4723 void setBaseLayer(int layer, Region invalRegion, boolean showVisualIndicator, 4724 boolean isPictureAfterFirstLayout) { 4725 if (mNativeClass == 0) 4726 return; 4727 boolean queueFull; 4728 queueFull = nativeSetBaseLayer(mNativeClass, layer, invalRegion, 4729 showVisualIndicator, isPictureAfterFirstLayout); 4730 4731 if (queueFull) { 4732 mWebViewCore.pauseWebKitDraw(); 4733 } else { 4734 mWebViewCore.resumeWebKitDraw(); 4735 } 4736 4737 if (mHTML5VideoViewProxy != null) { 4738 mHTML5VideoViewProxy.setBaseLayer(layer); 4739 } 4740 } 4741 4742 int getBaseLayer() { 4743 if (mNativeClass == 0) { 4744 return 0; 4745 } 4746 return nativeGetBaseLayer(); 4747 } 4748 4749 private void onZoomAnimationStart() { 4750 } 4751 4752 private void onZoomAnimationEnd() { 4753 mPrivateHandler.sendEmptyMessage(RELOCATE_AUTO_COMPLETE_POPUP); 4754 } 4755 4756 void onFixedLengthZoomAnimationStart() { 4757 WebViewCore.pauseUpdatePicture(getWebViewCore()); 4758 onZoomAnimationStart(); 4759 } 4760 4761 void onFixedLengthZoomAnimationEnd() { 4762 if (!mBlockWebkitViewMessages && !mSelectingText) { 4763 WebViewCore.resumeUpdatePicture(mWebViewCore); 4764 } 4765 onZoomAnimationEnd(); 4766 } 4767 4768 private static final int ZOOM_BITS = Paint.FILTER_BITMAP_FLAG | 4769 Paint.DITHER_FLAG | 4770 Paint.SUBPIXEL_TEXT_FLAG; 4771 private static final int SCROLL_BITS = Paint.FILTER_BITMAP_FLAG | 4772 Paint.DITHER_FLAG; 4773 4774 private final DrawFilter mZoomFilter = 4775 new PaintFlagsDrawFilter(ZOOM_BITS, Paint.LINEAR_TEXT_FLAG); 4776 // If we need to trade better quality for speed, set mScrollFilter to null 4777 private final DrawFilter mScrollFilter = 4778 new PaintFlagsDrawFilter(SCROLL_BITS, 0); 4779 4780 private void ensureSelectionHandles() { 4781 if (mSelectHandleCenter == null) { 4782 mSelectHandleCenter = mContext.getResources().getDrawable( 4783 com.android.internal.R.drawable.text_select_handle_middle); 4784 mSelectHandleLeft = mContext.getResources().getDrawable( 4785 com.android.internal.R.drawable.text_select_handle_left); 4786 mSelectHandleRight = mContext.getResources().getDrawable( 4787 com.android.internal.R.drawable.text_select_handle_right); 4788 mSelectHandleCenterOffset = new Point(0, 4789 -mSelectHandleCenter.getIntrinsicHeight()); 4790 mSelectHandleLeftOffset = new Point(0, 4791 -mSelectHandleLeft.getIntrinsicHeight()); 4792 mSelectHandleRightOffset = new Point( 4793 -mSelectHandleLeft.getIntrinsicWidth() / 2, 4794 -mSelectHandleRight.getIntrinsicHeight()); 4795 } 4796 } 4797 4798 private void drawTextSelectionHandles(Canvas canvas) { 4799 ensureSelectionHandles(); 4800 int[] handles = new int[4]; 4801 getSelectionHandles(handles); 4802 int start_x = contentToViewDimension(handles[0]); 4803 int start_y = contentToViewDimension(handles[1]); 4804 int end_x = contentToViewDimension(handles[2]); 4805 int end_y = contentToViewDimension(handles[3]); 4806 4807 if (mIsCaretSelection) { 4808 // Caret handle is centered 4809 start_x -= (mSelectHandleCenter.getIntrinsicWidth() / 2); 4810 mSelectHandleCenter.setBounds(start_x, start_y, 4811 start_x + mSelectHandleCenter.getIntrinsicWidth(), 4812 start_y + mSelectHandleCenter.getIntrinsicHeight()); 4813 mSelectHandleCenter.draw(canvas); 4814 } else { 4815 // Magic formula copied from TextView 4816 start_x -= (mSelectHandleLeft.getIntrinsicWidth() * 3) / 4; 4817 mSelectHandleLeft.setBounds(start_x, start_y, 4818 start_x + mSelectHandleLeft.getIntrinsicWidth(), 4819 start_y + mSelectHandleLeft.getIntrinsicHeight()); 4820 end_x -= mSelectHandleRight.getIntrinsicWidth() / 4; 4821 mSelectHandleRight.setBounds(end_x, end_y, 4822 end_x + mSelectHandleRight.getIntrinsicWidth(), 4823 end_y + mSelectHandleRight.getIntrinsicHeight()); 4824 mSelectHandleLeft.draw(canvas); 4825 mSelectHandleRight.draw(canvas); 4826 } 4827 } 4828 4829 /** 4830 * Takes an int[4] array as an output param with the values being 4831 * startX, startY, endX, endY 4832 */ 4833 private void getSelectionHandles(int[] handles) { 4834 handles[0] = mSelectCursorBase.x; 4835 handles[1] = mSelectCursorBase.y; 4836 handles[2] = mSelectCursorExtent.x; 4837 handles[3] = mSelectCursorExtent.y; 4838 if (!nativeIsBaseFirst(mNativeClass)) { 4839 int swap = handles[0]; 4840 handles[0] = handles[2]; 4841 handles[2] = swap; 4842 swap = handles[1]; 4843 handles[1] = handles[3]; 4844 handles[3] = swap; 4845 } 4846 } 4847 4848 // draw history 4849 private boolean mDrawHistory = false; 4850 private Picture mHistoryPicture = null; 4851 private int mHistoryWidth = 0; 4852 private int mHistoryHeight = 0; 4853 4854 // Only check the flag, can be called from WebCore thread 4855 boolean drawHistory() { 4856 return mDrawHistory; 4857 } 4858 4859 int getHistoryPictureWidth() { 4860 return (mHistoryPicture != null) ? mHistoryPicture.getWidth() : 0; 4861 } 4862 4863 // Should only be called in UI thread 4864 void switchOutDrawHistory() { 4865 if (null == mWebViewCore) return; // CallbackProxy may trigger this 4866 if (mDrawHistory && (getProgress() == 100 || nativeHasContent())) { 4867 mDrawHistory = false; 4868 mHistoryPicture = null; 4869 invalidate(); 4870 int oldScrollX = getScrollX(); 4871 int oldScrollY = getScrollY(); 4872 setScrollXRaw(pinLocX(getScrollX())); 4873 setScrollYRaw(pinLocY(getScrollY())); 4874 if (oldScrollX != getScrollX() || oldScrollY != getScrollY()) { 4875 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), oldScrollX, oldScrollY); 4876 } else { 4877 sendOurVisibleRect(); 4878 } 4879 } 4880 } 4881 4882 /** 4883 * Delete text from start to end in the focused textfield. If there is no 4884 * focus, or if start == end, silently fail. If start and end are out of 4885 * order, swap them. 4886 * @param start Beginning of selection to delete. 4887 * @param end End of selection to delete. 4888 */ 4889 /* package */ void deleteSelection(int start, int end) { 4890 mTextGeneration++; 4891 WebViewCore.TextSelectionData data 4892 = new WebViewCore.TextSelectionData(start, end, 0); 4893 mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, mTextGeneration, 0, 4894 data); 4895 } 4896 4897 /** 4898 * Set the selection to (start, end) in the focused textfield. If start and 4899 * end are out of order, swap them. 4900 * @param start Beginning of selection. 4901 * @param end End of selection. 4902 */ 4903 /* package */ void setSelection(int start, int end) { 4904 if (mWebViewCore != null) { 4905 mWebViewCore.sendMessage(EventHub.SET_SELECTION, start, end); 4906 } 4907 } 4908 4909 @Override 4910 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4911 if (mInputConnection == null) { 4912 mInputConnection = new WebViewInputConnection(); 4913 mAutoCompletePopup = new AutoCompletePopup(mContext, this, 4914 mInputConnection); 4915 } 4916 mInputConnection.setupEditorInfo(outAttrs); 4917 return mInputConnection; 4918 } 4919 4920 private void relocateAutoCompletePopup() { 4921 if (mAutoCompletePopup != null) { 4922 mAutoCompletePopup.resetRect(); 4923 mAutoCompletePopup.setText(mInputConnection.getEditable()); 4924 } 4925 } 4926 4927 /** 4928 * Called in response to a message from webkit telling us that the soft 4929 * keyboard should be launched. 4930 */ 4931 private void displaySoftKeyboard(boolean isTextView) { 4932 InputMethodManager imm = (InputMethodManager) 4933 mContext.getSystemService(Context.INPUT_METHOD_SERVICE); 4934 4935 // bring it back to the default level scale so that user can enter text 4936 boolean zoom = mZoomManager.getScale() < mZoomManager.getDefaultScale(); 4937 if (zoom) { 4938 mZoomManager.setZoomCenter(mLastTouchX, mLastTouchY); 4939 mZoomManager.setZoomScale(mZoomManager.getDefaultScale(), false); 4940 } 4941 // Used by plugins and contentEditable. 4942 // Also used if the navigation cache is out of date, and 4943 // does not recognize that a textfield is in focus. In that 4944 // case, use WebView as the targeted view. 4945 // see http://b/issue?id=2457459 4946 imm.showSoftInput(mWebView, 0); 4947 } 4948 4949 // Called by WebKit to instruct the UI to hide the keyboard 4950 private void hideSoftKeyboard() { 4951 InputMethodManager imm = InputMethodManager.peekInstance(); 4952 if (imm != null && (imm.isActive(mWebView))) { 4953 imm.hideSoftInputFromWindow(mWebView.getWindowToken(), 0); 4954 } 4955 } 4956 4957 /** 4958 * Called by AutoCompletePopup to find saved form data associated with the 4959 * textfield 4960 * @param name Name of the textfield. 4961 * @param nodePointer Pointer to the node of the textfield, so it can be 4962 * compared to the currently focused textfield when the data is 4963 * retrieved. 4964 * @param autoFillable true if WebKit has determined this field is part of 4965 * a form that can be auto filled. 4966 * @param autoComplete true if the attribute "autocomplete" is set to true 4967 * on the textfield. 4968 */ 4969 /* package */ void requestFormData(String name, int nodePointer, 4970 boolean autoFillable, boolean autoComplete) { 4971 if (mWebViewCore.getSettings().getSaveFormData()) { 4972 Message update = mPrivateHandler.obtainMessage(REQUEST_FORM_DATA); 4973 update.arg1 = nodePointer; 4974 RequestFormData updater = new RequestFormData(name, getUrl(), 4975 update, autoFillable, autoComplete); 4976 Thread t = new Thread(updater); 4977 t.start(); 4978 } 4979 } 4980 4981 /* 4982 * This class requests an Adapter for the AutoCompletePopup which shows past 4983 * entries stored in the database. It is a Runnable so that it can be done 4984 * in its own thread, without slowing down the UI. 4985 */ 4986 private class RequestFormData implements Runnable { 4987 private String mName; 4988 private String mUrl; 4989 private Message mUpdateMessage; 4990 private boolean mAutoFillable; 4991 private boolean mAutoComplete; 4992 private WebSettingsClassic mWebSettings; 4993 4994 public RequestFormData(String name, String url, Message msg, 4995 boolean autoFillable, boolean autoComplete) { 4996 mName = name; 4997 mUrl = WebTextView.urlForAutoCompleteData(url); 4998 mUpdateMessage = msg; 4999 mAutoFillable = autoFillable; 5000 mAutoComplete = autoComplete; 5001 mWebSettings = getSettings(); 5002 } 5003 5004 @Override 5005 public void run() { 5006 ArrayList<String> pastEntries = new ArrayList<String>(); 5007 5008 if (mAutoFillable) { 5009 // Note that code inside the adapter click handler in AutoCompletePopup depends 5010 // on the AutoFill item being at the top of the drop down list. If you change 5011 // the order, make sure to do it there too! 5012 if (mWebSettings != null && mWebSettings.getAutoFillProfile() != null) { 5013 pastEntries.add(mWebView.getResources().getText( 5014 com.android.internal.R.string.autofill_this_form).toString() + 5015 " " + 5016 mAutoFillData.getPreviewString()); 5017 mAutoCompletePopup.setIsAutoFillProfileSet(true); 5018 } else { 5019 // There is no autofill profile set up yet, so add an option that 5020 // will invite the user to set their profile up. 5021 pastEntries.add(mWebView.getResources().getText( 5022 com.android.internal.R.string.setup_autofill).toString()); 5023 mAutoCompletePopup.setIsAutoFillProfileSet(false); 5024 } 5025 } 5026 5027 if (mAutoComplete) { 5028 pastEntries.addAll(mDatabase.getFormData(mUrl, mName)); 5029 } 5030 5031 if (pastEntries.size() > 0) { 5032 ArrayAdapter<String> adapter = new ArrayAdapter<String>( 5033 mContext, 5034 com.android.internal.R.layout.web_text_view_dropdown, 5035 pastEntries); 5036 mUpdateMessage.obj = adapter; 5037 mUpdateMessage.sendToTarget(); 5038 } 5039 } 5040 } 5041 5042 /** 5043 * Dump the display tree to "/sdcard/displayTree.txt" 5044 * 5045 * debug only 5046 */ 5047 public void dumpDisplayTree() { 5048 nativeDumpDisplayTree(getUrl()); 5049 } 5050 5051 /** 5052 * Dump the dom tree to adb shell if "toFile" is False, otherwise dump it to 5053 * "/sdcard/domTree.txt" 5054 * 5055 * debug only 5056 */ 5057 public void dumpDomTree(boolean toFile) { 5058 mWebViewCore.sendMessage(EventHub.DUMP_DOMTREE, toFile ? 1 : 0, 0); 5059 } 5060 5061 /** 5062 * Dump the render tree to adb shell if "toFile" is False, otherwise dump it 5063 * to "/sdcard/renderTree.txt" 5064 * 5065 * debug only 5066 */ 5067 public void dumpRenderTree(boolean toFile) { 5068 mWebViewCore.sendMessage(EventHub.DUMP_RENDERTREE, toFile ? 1 : 0, 0); 5069 } 5070 5071 /** 5072 * Called by DRT on UI thread, need to proxy to WebCore thread. 5073 * 5074 * debug only 5075 */ 5076 public void useMockDeviceOrientation() { 5077 mWebViewCore.sendMessage(EventHub.USE_MOCK_DEVICE_ORIENTATION); 5078 } 5079 5080 /** 5081 * Called by DRT on WebCore thread. 5082 * 5083 * debug only 5084 */ 5085 public void setMockDeviceOrientation(boolean canProvideAlpha, double alpha, 5086 boolean canProvideBeta, double beta, boolean canProvideGamma, double gamma) { 5087 mWebViewCore.setMockDeviceOrientation(canProvideAlpha, alpha, canProvideBeta, beta, 5088 canProvideGamma, gamma); 5089 } 5090 5091 // This is used to determine long press with the center key. Does not 5092 // affect long press with the trackball/touch. 5093 private boolean mGotCenterDown = false; 5094 5095 @Override 5096 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5097 if (mBlockWebkitViewMessages) { 5098 return false; 5099 } 5100 // send complex characters to webkit for use by JS and plugins 5101 if (keyCode == KeyEvent.KEYCODE_UNKNOWN && event.getCharacters() != null) { 5102 // pass the key to DOM 5103 sendBatchableInputMessage(EventHub.KEY_DOWN, 0, 0, event); 5104 sendBatchableInputMessage(EventHub.KEY_UP, 0, 0, event); 5105 // return true as DOM handles the key 5106 return true; 5107 } 5108 return false; 5109 } 5110 5111 private boolean isEnterActionKey(int keyCode) { 5112 return keyCode == KeyEvent.KEYCODE_DPAD_CENTER 5113 || keyCode == KeyEvent.KEYCODE_ENTER 5114 || keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER; 5115 } 5116 5117 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5118 if (mAutoCompletePopup != null) { 5119 return mAutoCompletePopup.onKeyPreIme(keyCode, event); 5120 } 5121 return false; 5122 } 5123 5124 @Override 5125 public boolean onKeyDown(int keyCode, KeyEvent event) { 5126 if (DebugFlags.WEB_VIEW) { 5127 Log.v(LOGTAG, "keyDown at " + System.currentTimeMillis() 5128 + "keyCode=" + keyCode 5129 + ", " + event + ", unicode=" + event.getUnicodeChar()); 5130 } 5131 if (mIsCaretSelection) { 5132 selectionDone(); 5133 } 5134 if (mBlockWebkitViewMessages) { 5135 return false; 5136 } 5137 5138 // don't implement accelerator keys here; defer to host application 5139 if (event.isCtrlPressed()) { 5140 return false; 5141 } 5142 5143 if (mNativeClass == 0) { 5144 return false; 5145 } 5146 5147 // do this hack up front, so it always works, regardless of touch-mode 5148 if (AUTO_REDRAW_HACK && (keyCode == KeyEvent.KEYCODE_CALL)) { 5149 mAutoRedraw = !mAutoRedraw; 5150 if (mAutoRedraw) { 5151 invalidate(); 5152 } 5153 return true; 5154 } 5155 5156 // Bubble up the key event if 5157 // 1. it is a system key; or 5158 // 2. the host application wants to handle it; 5159 if (event.isSystem() 5160 || mCallbackProxy.uiOverrideKeyEvent(event)) { 5161 return false; 5162 } 5163 5164 // accessibility support 5165 if (accessibilityScriptInjected()) { 5166 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 5167 // if an accessibility script is injected we delegate to it the key handling. 5168 // this script is a screen reader which is a fully fledged solution for blind 5169 // users to navigate in and interact with web pages. 5170 sendBatchableInputMessage(EventHub.KEY_DOWN, 0, 0, event); 5171 return true; 5172 } else { 5173 // Clean up if accessibility was disabled after loading the current URL. 5174 mAccessibilityScriptInjected = false; 5175 } 5176 } else if (mAccessibilityInjector != null) { 5177 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 5178 if (mAccessibilityInjector.onKeyEvent(event)) { 5179 // if an accessibility injector is present (no JavaScript enabled or the site 5180 // opts out injecting our JavaScript screen reader) we let it decide whether 5181 // to act on and consume the event. 5182 return true; 5183 } 5184 } else { 5185 // Clean up if accessibility was disabled after loading the current URL. 5186 mAccessibilityInjector = null; 5187 } 5188 } 5189 5190 if (keyCode == KeyEvent.KEYCODE_PAGE_UP) { 5191 if (event.hasNoModifiers()) { 5192 pageUp(false); 5193 return true; 5194 } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) { 5195 pageUp(true); 5196 return true; 5197 } 5198 } 5199 5200 if (keyCode == KeyEvent.KEYCODE_PAGE_DOWN) { 5201 if (event.hasNoModifiers()) { 5202 pageDown(false); 5203 return true; 5204 } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) { 5205 pageDown(true); 5206 return true; 5207 } 5208 } 5209 5210 if (keyCode == KeyEvent.KEYCODE_MOVE_HOME && event.hasNoModifiers()) { 5211 pageUp(true); 5212 return true; 5213 } 5214 5215 if (keyCode == KeyEvent.KEYCODE_MOVE_END && event.hasNoModifiers()) { 5216 pageDown(true); 5217 return true; 5218 } 5219 5220 if (keyCode >= KeyEvent.KEYCODE_DPAD_UP 5221 && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { 5222 switchOutDrawHistory(); 5223 } 5224 5225 if (isEnterActionKey(keyCode)) { 5226 switchOutDrawHistory(); 5227 if (event.getRepeatCount() == 0) { 5228 if (mSelectingText) { 5229 return true; // discard press if copy in progress 5230 } 5231 mGotCenterDown = true; 5232 mPrivateHandler.sendMessageDelayed(mPrivateHandler 5233 .obtainMessage(LONG_PRESS_CENTER), LONG_PRESS_TIMEOUT); 5234 } 5235 } 5236 5237 if (getSettings().getNavDump()) { 5238 switch (keyCode) { 5239 case KeyEvent.KEYCODE_4: 5240 dumpDisplayTree(); 5241 break; 5242 case KeyEvent.KEYCODE_5: 5243 case KeyEvent.KEYCODE_6: 5244 dumpDomTree(keyCode == KeyEvent.KEYCODE_5); 5245 break; 5246 case KeyEvent.KEYCODE_7: 5247 case KeyEvent.KEYCODE_8: 5248 dumpRenderTree(keyCode == KeyEvent.KEYCODE_7); 5249 break; 5250 } 5251 } 5252 5253 // pass the key to DOM 5254 sendKeyEvent(event); 5255 // return true as DOM handles the key 5256 return true; 5257 } 5258 5259 @Override 5260 public boolean onKeyUp(int keyCode, KeyEvent event) { 5261 if (DebugFlags.WEB_VIEW) { 5262 Log.v(LOGTAG, "keyUp at " + System.currentTimeMillis() 5263 + ", " + event + ", unicode=" + event.getUnicodeChar()); 5264 } 5265 if (mBlockWebkitViewMessages) { 5266 return false; 5267 } 5268 5269 if (mNativeClass == 0) { 5270 return false; 5271 } 5272 5273 // special CALL handling when cursor node's href is "tel:XXX" 5274 if (keyCode == KeyEvent.KEYCODE_CALL 5275 && mInitialHitTestResult != null 5276 && mInitialHitTestResult.getType() == HitTestResult.PHONE_TYPE) { 5277 String text = mInitialHitTestResult.getExtra(); 5278 Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse(text)); 5279 mContext.startActivity(intent); 5280 return true; 5281 } 5282 5283 // Bubble up the key event if 5284 // 1. it is a system key; or 5285 // 2. the host application wants to handle it; 5286 if (event.isSystem() 5287 || mCallbackProxy.uiOverrideKeyEvent(event)) { 5288 return false; 5289 } 5290 5291 // accessibility support 5292 if (accessibilityScriptInjected()) { 5293 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 5294 // if an accessibility script is injected we delegate to it the key handling. 5295 // this script is a screen reader which is a fully fledged solution for blind 5296 // users to navigate in and interact with web pages. 5297 sendBatchableInputMessage(EventHub.KEY_UP, 0, 0, event); 5298 return true; 5299 } else { 5300 // Clean up if accessibility was disabled after loading the current URL. 5301 mAccessibilityScriptInjected = false; 5302 } 5303 } else if (mAccessibilityInjector != null) { 5304 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 5305 if (mAccessibilityInjector.onKeyEvent(event)) { 5306 // if an accessibility injector is present (no JavaScript enabled or the site 5307 // opts out injecting our JavaScript screen reader) we let it decide whether to 5308 // act on and consume the event. 5309 return true; 5310 } 5311 } else { 5312 // Clean up if accessibility was disabled after loading the current URL. 5313 mAccessibilityInjector = null; 5314 } 5315 } 5316 5317 if (isEnterActionKey(keyCode)) { 5318 // remove the long press message first 5319 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 5320 mGotCenterDown = false; 5321 5322 if (mSelectingText) { 5323 copySelection(); 5324 selectionDone(); 5325 return true; // discard press if copy in progress 5326 } 5327 } 5328 5329 // pass the key to DOM 5330 sendKeyEvent(event); 5331 // return true as DOM handles the key 5332 return true; 5333 } 5334 5335 private boolean startSelectActionMode() { 5336 mSelectCallback = new SelectActionModeCallback(); 5337 mSelectCallback.setTextSelected(!mIsCaretSelection); 5338 mSelectCallback.setWebView(this); 5339 if (mWebView.startActionMode(mSelectCallback) == null) { 5340 // There is no ActionMode, so do not allow the user to modify a 5341 // selection. 5342 selectionDone(); 5343 return false; 5344 } 5345 mWebView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 5346 return true; 5347 } 5348 5349 private void showPasteWindow() { 5350 ClipboardManager cm = (ClipboardManager)(mContext 5351 .getSystemService(Context.CLIPBOARD_SERVICE)); 5352 if (cm.hasPrimaryClip()) { 5353 Point cursorPoint = new Point(contentToViewX(mSelectCursorBase.x), 5354 contentToViewY(mSelectCursorBase.y)); 5355 Point cursorTop = calculateCaretTop(); 5356 cursorTop.set(contentToViewX(cursorTop.x), 5357 contentToViewY(cursorTop.y)); 5358 5359 int[] location = new int[2]; 5360 mWebView.getLocationInWindow(location); 5361 int offsetX = location[0] - getScrollX(); 5362 int offsetY = location[1] - getScrollY(); 5363 cursorPoint.offset(offsetX, offsetY); 5364 cursorTop.offset(offsetX, offsetY); 5365 if (mPasteWindow == null) { 5366 mPasteWindow = new PastePopupWindow(); 5367 } 5368 mPasteWindow.show(cursorPoint, cursorTop, location[0], location[1]); 5369 } 5370 } 5371 5372 /** 5373 * Given segment AB, this finds the point C along AB that is closest to 5374 * point and then returns it scale along AB. The scale factor is AC/AB. 5375 * 5376 * @param x The x coordinate of the point near segment AB that determines 5377 * the scale factor. 5378 * @param y The y coordinate of the point near segment AB that determines 5379 * the scale factor. 5380 * @param a The first point of the line segment. 5381 * @param b The second point of the line segment. 5382 * @return The scale factor AC/AB, where C is the point on AB closest to 5383 * point. 5384 */ 5385 private static float scaleAlongSegment(int x, int y, PointF a, PointF b) { 5386 // The bottom line of the text box is line AB 5387 float abX = b.x - a.x; 5388 float abY = b.y - a.y; 5389 float ab2 = (abX * abX) + (abY * abY); 5390 5391 // The line from first point in text bounds to bottom is AP 5392 float apX = x - a.x; 5393 float apY = y - a.y; 5394 float abDotAP = (apX * abX) + (apY * abY); 5395 float scale = abDotAP / ab2; 5396 return scale; 5397 } 5398 5399 /** 5400 * Assuming arbitrary shape of a quadralateral forming text bounds, this 5401 * calculates the top of a caret. 5402 */ 5403 private Point calculateCaretTop() { 5404 float scale = scaleAlongSegment(mSelectCursorBase.x, mSelectCursorBase.y, 5405 mSelectCursorBaseTextQuad.p4, mSelectCursorBaseTextQuad.p3); 5406 int x = Math.round(scaleCoordinate(scale, 5407 mSelectCursorBaseTextQuad.p1.x, mSelectCursorBaseTextQuad.p2.x)); 5408 int y = Math.round(scaleCoordinate(scale, 5409 mSelectCursorBaseTextQuad.p1.y, mSelectCursorBaseTextQuad.p2.y)); 5410 return new Point(x, y); 5411 } 5412 5413 private void hidePasteButton() { 5414 if (mPasteWindow != null) { 5415 mPasteWindow.hide(); 5416 } 5417 } 5418 5419 private void syncSelectionCursors() { 5420 mSelectCursorBaseLayerId = 5421 nativeGetHandleLayerId(mNativeClass, HANDLE_ID_BASE, 5422 mSelectCursorBase, mSelectCursorBaseTextQuad); 5423 mSelectCursorExtentLayerId = 5424 nativeGetHandleLayerId(mNativeClass, HANDLE_ID_EXTENT, 5425 mSelectCursorExtent, mSelectCursorExtentTextQuad); 5426 } 5427 5428 private void adjustSelectionCursors() { 5429 boolean wasDraggingStart = (mSelectDraggingCursor == mSelectCursorBase); 5430 int oldX = mSelectDraggingCursor.x; 5431 int oldY = mSelectDraggingCursor.y; 5432 int oldStartX = mSelectCursorBase.x; 5433 int oldStartY = mSelectCursorBase.y; 5434 int oldEndX = mSelectCursorExtent.x; 5435 int oldEndY = mSelectCursorExtent.y; 5436 5437 syncSelectionCursors(); 5438 boolean dragChanged = oldX != mSelectDraggingCursor.x || 5439 oldY != mSelectDraggingCursor.y; 5440 if (dragChanged && !mIsCaretSelection) { 5441 boolean draggingStart; 5442 if (wasDraggingStart) { 5443 float endStart = distanceSquared(oldEndX, oldEndY, 5444 mSelectCursorBase); 5445 float endEnd = distanceSquared(oldEndX, oldEndY, 5446 mSelectCursorExtent); 5447 draggingStart = endStart > endEnd; 5448 } else { 5449 float startStart = distanceSquared(oldStartX, oldStartY, 5450 mSelectCursorBase); 5451 float startEnd = distanceSquared(oldStartX, oldStartY, 5452 mSelectCursorExtent); 5453 draggingStart = startStart > startEnd; 5454 } 5455 mSelectDraggingCursor = (draggingStart 5456 ? mSelectCursorBase : mSelectCursorExtent); 5457 mSelectDraggingTextQuad = (draggingStart 5458 ? mSelectCursorBaseTextQuad : mSelectCursorExtentTextQuad); 5459 mSelectDraggingOffset = (draggingStart 5460 ? mSelectHandleLeftOffset : mSelectHandleRightOffset); 5461 } 5462 mSelectDraggingCursor.set(oldX, oldY); 5463 } 5464 5465 private float distanceSquared(int x, int y, Point p) { 5466 float dx = p.x - x; 5467 float dy = p.y - y; 5468 return (dx * dx) + (dy * dy); 5469 } 5470 5471 private boolean setupWebkitSelect() { 5472 syncSelectionCursors(); 5473 if (!mIsCaretSelection && !startSelectActionMode()) { 5474 selectionDone(); 5475 return false; 5476 } 5477 mSelectingText = true; 5478 mTouchMode = TOUCH_DRAG_MODE; 5479 return true; 5480 } 5481 5482 private void updateWebkitSelection() { 5483 int[] handles = null; 5484 if (mIsCaretSelection) { 5485 mSelectCursorExtent.set(mSelectCursorBase.x, mSelectCursorBase.y); 5486 } 5487 if (mSelectingText) { 5488 handles = new int[4]; 5489 handles[0] = mSelectCursorBase.x; 5490 handles[1] = mSelectCursorBase.y; 5491 handles[2] = mSelectCursorExtent.x; 5492 handles[3] = mSelectCursorExtent.y; 5493 } else { 5494 nativeSetTextSelection(mNativeClass, 0); 5495 } 5496 mWebViewCore.removeMessages(EventHub.SELECT_TEXT); 5497 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SELECT_TEXT, handles); 5498 } 5499 5500 private void resetCaretTimer() { 5501 mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE); 5502 if (!mSelectionStarted) { 5503 mPrivateHandler.sendEmptyMessageDelayed(CLEAR_CARET_HANDLE, 5504 CARET_HANDLE_STAMINA_MS); 5505 } 5506 } 5507 5508 /** 5509 * See {@link WebView#emulateShiftHeld()} 5510 */ 5511 @Override 5512 @Deprecated 5513 public void emulateShiftHeld() { 5514 } 5515 5516 /** 5517 * Select all of the text in this WebView. 5518 * 5519 * This is an implementation detail. 5520 */ 5521 public void selectAll() { 5522 mWebViewCore.sendMessage(EventHub.SELECT_ALL); 5523 } 5524 5525 /** 5526 * Called when the selection has been removed. 5527 */ 5528 void selectionDone() { 5529 if (mSelectingText) { 5530 hidePasteButton(); 5531 mSelectingText = false; 5532 // finish is idempotent, so this is fine even if selectionDone was 5533 // called by mSelectCallback.onDestroyActionMode 5534 if (mSelectCallback != null) { 5535 mSelectCallback.finish(); 5536 mSelectCallback = null; 5537 } 5538 if (!mIsCaretSelection) { 5539 updateWebkitSelection(); 5540 } 5541 invalidate(); // redraw without selection 5542 mAutoScrollX = 0; 5543 mAutoScrollY = 0; 5544 mSentAutoScrollMessage = false; 5545 } 5546 } 5547 5548 /** 5549 * Copy the selection to the clipboard 5550 * 5551 * This is an implementation detail. 5552 */ 5553 public boolean copySelection() { 5554 boolean copiedSomething = false; 5555 String selection = getSelection(); 5556 if (selection != null && selection != "") { 5557 if (DebugFlags.WEB_VIEW) { 5558 Log.v(LOGTAG, "copySelection \"" + selection + "\""); 5559 } 5560 Toast.makeText(mContext 5561 , com.android.internal.R.string.text_copied 5562 , Toast.LENGTH_SHORT).show(); 5563 copiedSomething = true; 5564 ClipboardManager cm = (ClipboardManager)mContext 5565 .getSystemService(Context.CLIPBOARD_SERVICE); 5566 cm.setText(selection); 5567 int[] handles = new int[4]; 5568 getSelectionHandles(handles); 5569 mWebViewCore.sendMessage(EventHub.COPY_TEXT, handles); 5570 } 5571 invalidate(); // remove selection region and pointer 5572 return copiedSomething; 5573 } 5574 5575 /** 5576 * Cut the selected text into the clipboard 5577 * 5578 * This is an implementation detail 5579 */ 5580 public void cutSelection() { 5581 copySelection(); 5582 int[] handles = new int[4]; 5583 getSelectionHandles(handles); 5584 mWebViewCore.sendMessage(EventHub.DELETE_TEXT, handles); 5585 } 5586 5587 /** 5588 * Paste text from the clipboard to the cursor position. 5589 * 5590 * This is an implementation detail 5591 */ 5592 public void pasteFromClipboard() { 5593 ClipboardManager cm = (ClipboardManager)mContext 5594 .getSystemService(Context.CLIPBOARD_SERVICE); 5595 ClipData clipData = cm.getPrimaryClip(); 5596 if (clipData != null) { 5597 ClipData.Item clipItem = clipData.getItemAt(0); 5598 CharSequence pasteText = clipItem.getText(); 5599 if (mInputConnection != null) { 5600 mInputConnection.replaceSelection(pasteText); 5601 } 5602 } 5603 } 5604 5605 /** 5606 * This is an implementation detail. 5607 */ 5608 public SearchBox getSearchBox() { 5609 if ((mWebViewCore == null) || (mWebViewCore.getBrowserFrame() == null)) { 5610 return null; 5611 } 5612 return mWebViewCore.getBrowserFrame().getSearchBox(); 5613 } 5614 5615 /** 5616 * Returns the currently highlighted text as a string. 5617 */ 5618 String getSelection() { 5619 if (mNativeClass == 0) return ""; 5620 return nativeGetSelection(); 5621 } 5622 5623 @Override 5624 public void onAttachedToWindow() { 5625 if (mWebView.hasWindowFocus()) setActive(true); 5626 final ViewTreeObserver treeObserver = mWebView.getViewTreeObserver(); 5627 if (mGlobalLayoutListener == null) { 5628 mGlobalLayoutListener = new InnerGlobalLayoutListener(); 5629 treeObserver.addOnGlobalLayoutListener(mGlobalLayoutListener); 5630 } 5631 if (mScrollChangedListener == null) { 5632 mScrollChangedListener = new InnerScrollChangedListener(); 5633 treeObserver.addOnScrollChangedListener(mScrollChangedListener); 5634 } 5635 5636 addAccessibilityApisToJavaScript(); 5637 5638 mTouchEventQueue.reset(); 5639 updateHwAccelerated(); 5640 } 5641 5642 @Override 5643 public void onDetachedFromWindow() { 5644 clearHelpers(); 5645 mZoomManager.dismissZoomPicker(); 5646 if (mWebView.hasWindowFocus()) setActive(false); 5647 5648 final ViewTreeObserver treeObserver = mWebView.getViewTreeObserver(); 5649 if (mGlobalLayoutListener != null) { 5650 treeObserver.removeGlobalOnLayoutListener(mGlobalLayoutListener); 5651 mGlobalLayoutListener = null; 5652 } 5653 if (mScrollChangedListener != null) { 5654 treeObserver.removeOnScrollChangedListener(mScrollChangedListener); 5655 mScrollChangedListener = null; 5656 } 5657 5658 removeAccessibilityApisFromJavaScript(); 5659 updateHwAccelerated(); 5660 } 5661 5662 @Override 5663 public void onVisibilityChanged(View changedView, int visibility) { 5664 // The zoomManager may be null if the webview is created from XML that 5665 // specifies the view's visibility param as not visible (see http://b/2794841) 5666 if (visibility != View.VISIBLE && mZoomManager != null) { 5667 mZoomManager.dismissZoomPicker(); 5668 } 5669 updateDrawingState(); 5670 } 5671 5672 void setActive(boolean active) { 5673 if (active) { 5674 if (mWebView.hasFocus()) { 5675 // If our window regained focus, and we have focus, then begin 5676 // drawing the cursor ring 5677 mDrawCursorRing = true; 5678 setFocusControllerActive(true); 5679 } else { 5680 mDrawCursorRing = false; 5681 setFocusControllerActive(false); 5682 } 5683 } else { 5684 if (!mZoomManager.isZoomPickerVisible()) { 5685 /* 5686 * The external zoom controls come in their own window, so our 5687 * window loses focus. Our policy is to not draw the cursor ring 5688 * if our window is not focused, but this is an exception since 5689 * the user can still navigate the web page with the zoom 5690 * controls showing. 5691 */ 5692 mDrawCursorRing = false; 5693 } 5694 mKeysPressed.clear(); 5695 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5696 mTouchMode = TOUCH_DONE_MODE; 5697 setFocusControllerActive(false); 5698 } 5699 invalidate(); 5700 } 5701 5702 // To avoid drawing the cursor ring, and remove the TextView when our window 5703 // loses focus. 5704 @Override 5705 public void onWindowFocusChanged(boolean hasWindowFocus) { 5706 setActive(hasWindowFocus); 5707 if (hasWindowFocus) { 5708 JWebCoreJavaBridge.setActiveWebView(this); 5709 if (mPictureUpdatePausedForFocusChange) { 5710 WebViewCore.resumeUpdatePicture(mWebViewCore); 5711 mPictureUpdatePausedForFocusChange = false; 5712 } 5713 } else { 5714 JWebCoreJavaBridge.removeActiveWebView(this); 5715 final WebSettings settings = getSettings(); 5716 if (settings != null && settings.enableSmoothTransition() && 5717 mWebViewCore != null && !WebViewCore.isUpdatePicturePaused(mWebViewCore)) { 5718 WebViewCore.pauseUpdatePicture(mWebViewCore); 5719 mPictureUpdatePausedForFocusChange = true; 5720 } 5721 } 5722 } 5723 5724 /* 5725 * Pass a message to WebCore Thread, telling the WebCore::Page's 5726 * FocusController to be "inactive" so that it will 5727 * not draw the blinking cursor. It gets set to "active" to draw the cursor 5728 * in WebViewCore.cpp, when the WebCore thread receives key events/clicks. 5729 */ 5730 /* package */ void setFocusControllerActive(boolean active) { 5731 if (mWebViewCore == null) return; 5732 mWebViewCore.sendMessage(EventHub.SET_ACTIVE, active ? 1 : 0, 0); 5733 // Need to send this message after the document regains focus. 5734 if (active && mListBoxMessage != null) { 5735 mWebViewCore.sendMessage(mListBoxMessage); 5736 mListBoxMessage = null; 5737 } 5738 } 5739 5740 @Override 5741 public void onFocusChanged(boolean focused, int direction, 5742 Rect previouslyFocusedRect) { 5743 if (DebugFlags.WEB_VIEW) { 5744 Log.v(LOGTAG, "MT focusChanged " + focused + ", " + direction); 5745 } 5746 if (focused) { 5747 mDrawCursorRing = true; 5748 setFocusControllerActive(true); 5749 } else { 5750 mDrawCursorRing = false; 5751 setFocusControllerActive(false); 5752 mKeysPressed.clear(); 5753 } 5754 if (!mTouchHighlightRegion.isEmpty()) { 5755 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 5756 } 5757 } 5758 5759 void setGLRectViewport() { 5760 // Use the getGlobalVisibleRect() to get the intersection among the parents 5761 // visible == false means we're clipped - send a null rect down to indicate that 5762 // we should not draw 5763 boolean visible = mWebView.getGlobalVisibleRect(mGLRectViewport); 5764 if (visible) { 5765 // Then need to invert the Y axis, just for GL 5766 View rootView = mWebView.getRootView(); 5767 int rootViewHeight = rootView.getHeight(); 5768 mViewRectViewport.set(mGLRectViewport); 5769 int savedWebViewBottom = mGLRectViewport.bottom; 5770 mGLRectViewport.bottom = rootViewHeight - mGLRectViewport.top - getVisibleTitleHeightImpl(); 5771 mGLRectViewport.top = rootViewHeight - savedWebViewBottom; 5772 mGLViewportEmpty = false; 5773 } else { 5774 mGLViewportEmpty = true; 5775 } 5776 calcOurContentVisibleRectF(mVisibleContentRect); 5777 nativeUpdateDrawGLFunction(mGLViewportEmpty ? null : mGLRectViewport, 5778 mGLViewportEmpty ? null : mViewRectViewport, 5779 mVisibleContentRect, getScale()); 5780 } 5781 5782 @Override 5783 public boolean setFrame(int left, int top, int right, int bottom) { 5784 boolean changed = mWebViewPrivate.super_setFrame(left, top, right, bottom); 5785 if (!changed && mHeightCanMeasure) { 5786 // When mHeightCanMeasure is true, we will set mLastHeightSent to 0 5787 // in WebViewCore after we get the first layout. We do call 5788 // requestLayout() when we get contentSizeChanged(). But the View 5789 // system won't call onSizeChanged if the dimension is not changed. 5790 // In this case, we need to call sendViewSizeZoom() explicitly to 5791 // notify the WebKit about the new dimensions. 5792 sendViewSizeZoom(false); 5793 } 5794 setGLRectViewport(); 5795 return changed; 5796 } 5797 5798 @Override 5799 public void onSizeChanged(int w, int h, int ow, int oh) { 5800 // adjust the max viewport width depending on the view dimensions. This 5801 // is to ensure the scaling is not going insane. So do not shrink it if 5802 // the view size is temporarily smaller, e.g. when soft keyboard is up. 5803 int newMaxViewportWidth = (int) (Math.max(w, h) / mZoomManager.getDefaultMinZoomScale()); 5804 if (newMaxViewportWidth > sMaxViewportWidth) { 5805 sMaxViewportWidth = newMaxViewportWidth; 5806 } 5807 5808 mZoomManager.onSizeChanged(w, h, ow, oh); 5809 5810 if (mLoadedPicture != null && mDelaySetPicture == null) { 5811 // Size changes normally result in a new picture 5812 // Re-set the loaded picture to simulate that 5813 // However, do not update the base layer as that hasn't changed 5814 setNewPicture(mLoadedPicture, false); 5815 } 5816 relocateAutoCompletePopup(); 5817 } 5818 5819 @Override 5820 public void onScrollChanged(int l, int t, int oldl, int oldt) { 5821 if (!mInOverScrollMode) { 5822 sendOurVisibleRect(); 5823 // update WebKit if visible title bar height changed. The logic is same 5824 // as getVisibleTitleHeightImpl. 5825 int titleHeight = getTitleHeight(); 5826 if (Math.max(titleHeight - t, 0) != Math.max(titleHeight - oldt, 0)) { 5827 sendViewSizeZoom(false); 5828 } 5829 } 5830 } 5831 5832 @Override 5833 public boolean dispatchKeyEvent(KeyEvent event) { 5834 switch (event.getAction()) { 5835 case KeyEvent.ACTION_DOWN: 5836 mKeysPressed.add(Integer.valueOf(event.getKeyCode())); 5837 break; 5838 case KeyEvent.ACTION_MULTIPLE: 5839 // Always accept the action. 5840 break; 5841 case KeyEvent.ACTION_UP: 5842 int location = mKeysPressed.indexOf(Integer.valueOf(event.getKeyCode())); 5843 if (location == -1) { 5844 // We did not receive the key down for this key, so do not 5845 // handle the key up. 5846 return false; 5847 } else { 5848 // We did receive the key down. Handle the key up, and 5849 // remove it from our pressed keys. 5850 mKeysPressed.remove(location); 5851 } 5852 break; 5853 default: 5854 // Accept the action. This should not happen, unless a new 5855 // action is added to KeyEvent. 5856 break; 5857 } 5858 return mWebViewPrivate.super_dispatchKeyEvent(event); 5859 } 5860 5861 /* 5862 * Here is the snap align logic: 5863 * 1. If it starts nearly horizontally or vertically, snap align; 5864 * 2. If there is a dramitic direction change, let it go; 5865 * 5866 * Adjustable parameters. Angle is the radians on a unit circle, limited 5867 * to quadrant 1. Values range from 0f (horizontal) to PI/2 (vertical) 5868 */ 5869 private static final float HSLOPE_TO_START_SNAP = .25f; 5870 private static final float HSLOPE_TO_BREAK_SNAP = .4f; 5871 private static final float VSLOPE_TO_START_SNAP = 1.25f; 5872 private static final float VSLOPE_TO_BREAK_SNAP = .95f; 5873 /* 5874 * These values are used to influence the average angle when entering 5875 * snap mode. If is is the first movement entering snap, we set the average 5876 * to the appropriate ideal. If the user is entering into snap after the 5877 * first movement, then we average the average angle with these values. 5878 */ 5879 private static final float ANGLE_VERT = 2f; 5880 private static final float ANGLE_HORIZ = 0f; 5881 /* 5882 * The modified moving average weight. 5883 * Formula: MAV[t]=MAV[t-1] + (P[t]-MAV[t-1])/n 5884 */ 5885 private static final float MMA_WEIGHT_N = 5; 5886 5887 private boolean hitFocusedPlugin(int contentX, int contentY) { 5888 // TODO: Figure out what to do with this (b/6111517) 5889 return false; 5890 } 5891 5892 private boolean shouldForwardTouchEvent() { 5893 if (mFullScreenHolder != null) return true; 5894 if (mBlockWebkitViewMessages) return false; 5895 return mForwardTouchEvents 5896 && !mSelectingText 5897 && mPreventDefault != PREVENT_DEFAULT_IGNORE 5898 && mPreventDefault != PREVENT_DEFAULT_NO; 5899 } 5900 5901 private boolean inFullScreenMode() { 5902 return mFullScreenHolder != null; 5903 } 5904 5905 private void dismissFullScreenMode() { 5906 if (inFullScreenMode()) { 5907 mFullScreenHolder.hide(); 5908 mFullScreenHolder = null; 5909 invalidate(); 5910 } 5911 } 5912 5913 void onPinchToZoomAnimationStart() { 5914 // cancel the single touch handling 5915 cancelTouch(); 5916 onZoomAnimationStart(); 5917 } 5918 5919 void onPinchToZoomAnimationEnd(ScaleGestureDetector detector) { 5920 onZoomAnimationEnd(); 5921 // start a drag, TOUCH_PINCH_DRAG, can't use TOUCH_INIT_MODE as 5922 // it may trigger the unwanted click, can't use TOUCH_DRAG_MODE 5923 // as it may trigger the unwanted fling. 5924 mTouchMode = TOUCH_PINCH_DRAG; 5925 mConfirmMove = true; 5926 startTouch(detector.getFocusX(), detector.getFocusY(), mLastTouchTime); 5927 } 5928 5929 // See if there is a layer at x, y and switch to TOUCH_DRAG_LAYER_MODE if a 5930 // layer is found. 5931 private void startScrollingLayer(float x, float y) { 5932 int contentX = viewToContentX((int) x + getScrollX()); 5933 int contentY = viewToContentY((int) y + getScrollY()); 5934 mCurrentScrollingLayerId = nativeScrollableLayer(contentX, contentY, 5935 mScrollingLayerRect, mScrollingLayerBounds); 5936 if (mCurrentScrollingLayerId != 0) { 5937 mTouchMode = TOUCH_DRAG_LAYER_MODE; 5938 } 5939 } 5940 5941 // 1/(density * density) used to compute the distance between points. 5942 // Computed in init(). 5943 private float DRAG_LAYER_INVERSE_DENSITY_SQUARED; 5944 5945 // The distance between two points reported in onTouchEvent scaled by the 5946 // density of the screen. 5947 private static final int DRAG_LAYER_FINGER_DISTANCE = 20000; 5948 5949 @Override 5950 public boolean onHoverEvent(MotionEvent event) { 5951 if (mNativeClass == 0) { 5952 return false; 5953 } 5954 int x = viewToContentX((int) event.getX() + getScrollX()); 5955 int y = viewToContentY((int) event.getY() + getScrollY()); 5956 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, x, y); 5957 return true; 5958 } 5959 5960 @Override 5961 public boolean onTouchEvent(MotionEvent ev) { 5962 if (mNativeClass == 0 || (!mWebView.isClickable() && !mWebView.isLongClickable())) { 5963 return false; 5964 } 5965 5966 if (!mWebView.isFocused()) { 5967 mWebView.requestFocus(); 5968 } 5969 5970 if (DebugFlags.WEB_VIEW) { 5971 Log.v(LOGTAG, ev + " at " + ev.getEventTime() 5972 + " mTouchMode=" + mTouchMode 5973 + " numPointers=" + ev.getPointerCount()); 5974 } 5975 5976 // If WebKit wasn't interested in this multitouch gesture, enqueue 5977 // the event for handling directly rather than making the round trip 5978 // to WebKit and back. 5979 if (ev.getPointerCount() > 1 && mPreventDefault != PREVENT_DEFAULT_NO) { 5980 passMultiTouchToWebKit(ev, mTouchEventQueue.nextTouchSequence()); 5981 } else { 5982 mTouchEventQueue.enqueueTouchEvent(ev); 5983 } 5984 5985 // Since all events are handled asynchronously, we always want the gesture stream. 5986 return true; 5987 } 5988 5989 private float calculateDragAngle(int dx, int dy) { 5990 dx = Math.abs(dx); 5991 dy = Math.abs(dy); 5992 return (float) Math.atan2(dy, dx); 5993 } 5994 5995 /* 5996 * Common code for single touch and multi-touch. 5997 * (x, y) denotes current focus point, which is the touch point for single touch 5998 * and the middle point for multi-touch. 5999 */ 6000 private boolean handleTouchEventCommon(MotionEvent ev, int action, int x, int y) { 6001 long eventTime = ev.getEventTime(); 6002 6003 // Due to the touch screen edge effect, a touch closer to the edge 6004 // always snapped to the edge. As getViewWidth() can be different from 6005 // getWidth() due to the scrollbar, adjusting the point to match 6006 // getViewWidth(). Same applied to the height. 6007 x = Math.min(x, getViewWidth() - 1); 6008 y = Math.min(y, getViewHeightWithTitle() - 1); 6009 6010 int deltaX = mLastTouchX - x; 6011 int deltaY = mLastTouchY - y; 6012 int contentX = viewToContentX(x + getScrollX()); 6013 int contentY = viewToContentY(y + getScrollY()); 6014 6015 switch (action) { 6016 case MotionEvent.ACTION_DOWN: { 6017 mPreventDefault = PREVENT_DEFAULT_NO; 6018 mConfirmMove = false; 6019 mInitialHitTestResult = null; 6020 if (!mEditTextScroller.isFinished()) { 6021 mEditTextScroller.abortAnimation(); 6022 } 6023 if (!mScroller.isFinished()) { 6024 // stop the current scroll animation, but if this is 6025 // the start of a fling, allow it to add to the current 6026 // fling's velocity 6027 mScroller.abortAnimation(); 6028 mTouchMode = TOUCH_DRAG_START_MODE; 6029 mConfirmMove = true; 6030 nativeSetIsScrolling(false); 6031 } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) { 6032 mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP); 6033 removeTouchHighlight(); 6034 if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) { 6035 mTouchMode = TOUCH_DOUBLE_TAP_MODE; 6036 } else { 6037 // commit the short press action for the previous tap 6038 doShortPress(); 6039 mTouchMode = TOUCH_INIT_MODE; 6040 mDeferTouchProcess = !mBlockWebkitViewMessages 6041 && (!inFullScreenMode() && mForwardTouchEvents) 6042 ? hitFocusedPlugin(contentX, contentY) 6043 : false; 6044 } 6045 } else { // the normal case 6046 mTouchMode = TOUCH_INIT_MODE; 6047 mDeferTouchProcess = !mBlockWebkitViewMessages 6048 && (!inFullScreenMode() && mForwardTouchEvents) 6049 ? hitFocusedPlugin(contentX, contentY) 6050 : false; 6051 TouchHighlightData data = new TouchHighlightData(); 6052 data.mX = contentX; 6053 data.mY = contentY; 6054 data.mNativeLayerRect = new Rect(); 6055 data.mNativeLayer = nativeScrollableLayer( 6056 contentX, contentY, data.mNativeLayerRect, null); 6057 data.mSlop = viewToContentDimension(mNavSlop); 6058 mTouchHighlightRegion.setEmpty(); 6059 if (!mBlockWebkitViewMessages) { 6060 mTouchHighlightRequested = System.currentTimeMillis(); 6061 mWebViewCore.sendMessageAtFrontOfQueue( 6062 EventHub.HIT_TEST, data); 6063 } 6064 if (DEBUG_TOUCH_HIGHLIGHT) { 6065 if (getSettings().getNavDump()) { 6066 mTouchHighlightX = x + getScrollX(); 6067 mTouchHighlightY = y + getScrollY(); 6068 mPrivateHandler.postDelayed(new Runnable() { 6069 @Override 6070 public void run() { 6071 mTouchHighlightX = mTouchHighlightY = 0; 6072 invalidate(); 6073 } 6074 }, TOUCH_HIGHLIGHT_ELAPSE_TIME); 6075 } 6076 } 6077 if (mLogEvent && eventTime - mLastTouchUpTime < 1000) { 6078 EventLog.writeEvent(EventLogTags.BROWSER_DOUBLE_TAP_DURATION, 6079 (eventTime - mLastTouchUpTime), eventTime); 6080 } 6081 mSelectionStarted = false; 6082 if (mSelectingText) { 6083 ensureSelectionHandles(); 6084 int shiftedY = y - getTitleHeight() + getScrollY(); 6085 int shiftedX = x + getScrollX(); 6086 if (mSelectHandleCenter != null && mSelectHandleCenter.getBounds() 6087 .contains(shiftedX, shiftedY)) { 6088 mSelectionStarted = true; 6089 mSelectDraggingCursor = mSelectCursorBase; 6090 mSelectDraggingOffset = mSelectHandleCenterOffset; 6091 mSelectDraggingTextQuad = mSelectCursorBaseTextQuad; 6092 mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE); 6093 hidePasteButton(); 6094 } else if (mSelectHandleLeft != null 6095 && mSelectHandleLeft.getBounds() 6096 .contains(shiftedX, shiftedY)) { 6097 mSelectionStarted = true; 6098 mSelectDraggingCursor = mSelectCursorBase; 6099 mSelectDraggingOffset = mSelectHandleLeftOffset; 6100 mSelectDraggingTextQuad = mSelectCursorBaseTextQuad; 6101 } else if (mSelectHandleRight != null 6102 && mSelectHandleRight.getBounds() 6103 .contains(shiftedX, shiftedY)) { 6104 mSelectionStarted = true; 6105 mSelectDraggingCursor = mSelectCursorExtent; 6106 mSelectDraggingOffset = mSelectHandleRightOffset; 6107 mSelectDraggingTextQuad = mSelectCursorExtentTextQuad; 6108 } else if (mIsCaretSelection) { 6109 selectionDone(); 6110 } 6111 if (DebugFlags.WEB_VIEW) { 6112 Log.v(LOGTAG, "select=" + contentX + "," + contentY); 6113 } 6114 } 6115 } 6116 // Trigger the link 6117 if (!mSelectingText && (mTouchMode == TOUCH_INIT_MODE 6118 || mTouchMode == TOUCH_DOUBLE_TAP_MODE)) { 6119 mPrivateHandler.sendEmptyMessageDelayed( 6120 SWITCH_TO_SHORTPRESS, TAP_TIMEOUT); 6121 mPrivateHandler.sendEmptyMessageDelayed( 6122 SWITCH_TO_LONGPRESS, LONG_PRESS_TIMEOUT); 6123 if (inFullScreenMode() || mDeferTouchProcess) { 6124 mPreventDefault = PREVENT_DEFAULT_YES; 6125 } else if (!mBlockWebkitViewMessages && mForwardTouchEvents) { 6126 mPreventDefault = PREVENT_DEFAULT_MAYBE_YES; 6127 } else { 6128 mPreventDefault = PREVENT_DEFAULT_NO; 6129 } 6130 // pass the touch events from UI thread to WebCore thread 6131 if (shouldForwardTouchEvent()) { 6132 TouchEventData ted = new TouchEventData(); 6133 ted.mAction = action; 6134 ted.mIds = new int[1]; 6135 ted.mIds[0] = ev.getPointerId(0); 6136 ted.mPoints = new Point[1]; 6137 ted.mPoints[0] = new Point(contentX, contentY); 6138 ted.mPointsInView = new Point[1]; 6139 ted.mPointsInView[0] = new Point(x, y); 6140 ted.mMetaState = ev.getMetaState(); 6141 ted.mReprocess = mDeferTouchProcess; 6142 ted.mNativeLayer = nativeScrollableLayer( 6143 contentX, contentY, ted.mNativeLayerRect, null); 6144 ted.mSequence = mTouchEventQueue.nextTouchSequence(); 6145 mTouchEventQueue.preQueueTouchEventData(ted); 6146 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 6147 if (mDeferTouchProcess) { 6148 // still needs to set them for compute deltaX/Y 6149 mLastTouchX = x; 6150 mLastTouchY = y; 6151 break; 6152 } 6153 if (!inFullScreenMode()) { 6154 mPrivateHandler.removeMessages(PREVENT_DEFAULT_TIMEOUT); 6155 mPrivateHandler.sendMessageDelayed(mPrivateHandler 6156 .obtainMessage(PREVENT_DEFAULT_TIMEOUT, 6157 action, 0), TAP_TIMEOUT); 6158 } 6159 } 6160 } 6161 startTouch(x, y, eventTime); 6162 if (mIsEditingText) { 6163 mTouchInEditText = mEditTextBounds.contains(contentX, contentY); 6164 } 6165 break; 6166 } 6167 case MotionEvent.ACTION_MOVE: { 6168 boolean firstMove = false; 6169 if (!mConfirmMove && (deltaX * deltaX + deltaY * deltaY) 6170 >= mTouchSlopSquare) { 6171 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6172 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6173 mConfirmMove = true; 6174 firstMove = true; 6175 if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 6176 mTouchMode = TOUCH_INIT_MODE; 6177 } 6178 removeTouchHighlight(); 6179 } 6180 if (mSelectingText && mSelectionStarted) { 6181 if (DebugFlags.WEB_VIEW) { 6182 Log.v(LOGTAG, "extend=" + contentX + "," + contentY); 6183 } 6184 ViewParent parent = mWebView.getParent(); 6185 if (parent != null) { 6186 parent.requestDisallowInterceptTouchEvent(true); 6187 } 6188 if (deltaX != 0 || deltaY != 0) { 6189 snapDraggingCursor(contentX, contentY); 6190 updateWebkitSelection(); 6191 mLastTouchX = x; 6192 mLastTouchY = y; 6193 invalidate(); 6194 } 6195 break; 6196 } 6197 6198 // pass the touch events from UI thread to WebCore thread 6199 if (shouldForwardTouchEvent() && mConfirmMove && (firstMove 6200 || eventTime - mLastSentTouchTime > mCurrentTouchInterval)) { 6201 TouchEventData ted = new TouchEventData(); 6202 ted.mAction = action; 6203 ted.mIds = new int[1]; 6204 ted.mIds[0] = ev.getPointerId(0); 6205 ted.mPoints = new Point[1]; 6206 ted.mPoints[0] = new Point(contentX, contentY); 6207 ted.mPointsInView = new Point[1]; 6208 ted.mPointsInView[0] = new Point(x, y); 6209 ted.mMetaState = ev.getMetaState(); 6210 ted.mReprocess = mDeferTouchProcess; 6211 ted.mNativeLayer = mCurrentScrollingLayerId; 6212 ted.mNativeLayerRect.set(mScrollingLayerRect); 6213 ted.mMotionEvent = MotionEvent.obtain(ev); 6214 ted.mSequence = mTouchEventQueue.nextTouchSequence(); 6215 mTouchEventQueue.preQueueTouchEventData(ted); 6216 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 6217 mLastSentTouchTime = eventTime; 6218 if (mDeferTouchProcess) { 6219 break; 6220 } 6221 if (firstMove && !inFullScreenMode()) { 6222 mPrivateHandler.sendMessageDelayed(mPrivateHandler 6223 .obtainMessage(PREVENT_DEFAULT_TIMEOUT, 6224 action, 0), TAP_TIMEOUT); 6225 } 6226 } 6227 if (mTouchMode == TOUCH_DONE_MODE 6228 || mPreventDefault == PREVENT_DEFAULT_YES) { 6229 // no dragging during scroll zoom animation, or when prevent 6230 // default is yes 6231 break; 6232 } 6233 if (mVelocityTracker == null) { 6234 Log.e(LOGTAG, "Got null mVelocityTracker when " 6235 + "mPreventDefault = " + mPreventDefault 6236 + " mDeferTouchProcess = " + mDeferTouchProcess 6237 + " mTouchMode = " + mTouchMode); 6238 } else { 6239 mVelocityTracker.addMovement(ev); 6240 } 6241 6242 if (mTouchMode != TOUCH_DRAG_MODE && 6243 mTouchMode != TOUCH_DRAG_LAYER_MODE && 6244 mTouchMode != TOUCH_DRAG_TEXT_MODE) { 6245 6246 if (!mConfirmMove) { 6247 break; 6248 } 6249 6250 if (mPreventDefault == PREVENT_DEFAULT_MAYBE_YES 6251 || mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN) { 6252 // track mLastTouchTime as we may need to do fling at 6253 // ACTION_UP 6254 mLastTouchTime = eventTime; 6255 break; 6256 } 6257 6258 // Only lock dragging to one axis if we don't have a scale in progress. 6259 // Scaling implies free-roaming movement. Note this is only ever a question 6260 // if mZoomManager.supportsPanDuringZoom() is true. 6261 final ScaleGestureDetector detector = 6262 mZoomManager.getMultiTouchGestureDetector(); 6263 mAverageAngle = calculateDragAngle(deltaX, deltaY); 6264 if (detector == null || !detector.isInProgress()) { 6265 // if it starts nearly horizontal or vertical, enforce it 6266 if (mAverageAngle < HSLOPE_TO_START_SNAP) { 6267 mSnapScrollMode = SNAP_X; 6268 mSnapPositive = deltaX > 0; 6269 mAverageAngle = ANGLE_HORIZ; 6270 } else if (mAverageAngle > VSLOPE_TO_START_SNAP) { 6271 mSnapScrollMode = SNAP_Y; 6272 mSnapPositive = deltaY > 0; 6273 mAverageAngle = ANGLE_VERT; 6274 } 6275 } 6276 6277 mTouchMode = TOUCH_DRAG_MODE; 6278 mLastTouchX = x; 6279 mLastTouchY = y; 6280 deltaX = 0; 6281 deltaY = 0; 6282 6283 startScrollingLayer(x, y); 6284 startDrag(); 6285 } 6286 6287 // do pan 6288 boolean done = false; 6289 boolean keepScrollBarsVisible = false; 6290 if (deltaX == 0 && deltaY == 0) { 6291 keepScrollBarsVisible = done = true; 6292 } else { 6293 mAverageAngle += 6294 (calculateDragAngle(deltaX, deltaY) - mAverageAngle) 6295 / MMA_WEIGHT_N; 6296 if (mSnapScrollMode != SNAP_NONE) { 6297 if (mSnapScrollMode == SNAP_Y) { 6298 // radical change means getting out of snap mode 6299 if (mAverageAngle < VSLOPE_TO_BREAK_SNAP) { 6300 mSnapScrollMode = SNAP_NONE; 6301 } 6302 } 6303 if (mSnapScrollMode == SNAP_X) { 6304 // radical change means getting out of snap mode 6305 if (mAverageAngle > HSLOPE_TO_BREAK_SNAP) { 6306 mSnapScrollMode = SNAP_NONE; 6307 } 6308 } 6309 } else { 6310 if (mAverageAngle < HSLOPE_TO_START_SNAP) { 6311 mSnapScrollMode = SNAP_X; 6312 mSnapPositive = deltaX > 0; 6313 mAverageAngle = (mAverageAngle + ANGLE_HORIZ) / 2; 6314 } else if (mAverageAngle > VSLOPE_TO_START_SNAP) { 6315 mSnapScrollMode = SNAP_Y; 6316 mSnapPositive = deltaY > 0; 6317 mAverageAngle = (mAverageAngle + ANGLE_VERT) / 2; 6318 } 6319 } 6320 if (mSnapScrollMode != SNAP_NONE) { 6321 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 6322 deltaY = 0; 6323 } else { 6324 deltaX = 0; 6325 } 6326 } 6327 if (deltaX * deltaX + deltaY * deltaY > mTouchSlopSquare) { 6328 mHeldMotionless = MOTIONLESS_FALSE; 6329 nativeSetIsScrolling(true); 6330 } else { 6331 mHeldMotionless = MOTIONLESS_TRUE; 6332 nativeSetIsScrolling(false); 6333 keepScrollBarsVisible = true; 6334 } 6335 6336 mLastTouchTime = eventTime; 6337 boolean allDrag = doDrag(deltaX, deltaY); 6338 if (allDrag) { 6339 mLastTouchX = x; 6340 mLastTouchY = y; 6341 } else { 6342 int contentDeltaX = (int)Math.floor(deltaX * mZoomManager.getInvScale()); 6343 int roundedDeltaX = contentToViewDimension(contentDeltaX); 6344 int contentDeltaY = (int)Math.floor(deltaY * mZoomManager.getInvScale()); 6345 int roundedDeltaY = contentToViewDimension(contentDeltaY); 6346 mLastTouchX -= roundedDeltaX; 6347 mLastTouchY -= roundedDeltaY; 6348 } 6349 } 6350 6351 // Turn off scrollbars when dragging a layer. 6352 if (keepScrollBarsVisible && 6353 mTouchMode != TOUCH_DRAG_LAYER_MODE && 6354 mTouchMode != TOUCH_DRAG_TEXT_MODE) { 6355 if (mHeldMotionless != MOTIONLESS_TRUE) { 6356 mHeldMotionless = MOTIONLESS_TRUE; 6357 invalidate(); 6358 } 6359 // keep the scrollbar on the screen even there is no scroll 6360 mWebViewPrivate.awakenScrollBars(ViewConfiguration.getScrollDefaultDelay(), 6361 false); 6362 // Post a message so that we'll keep them alive while we're not scrolling. 6363 mPrivateHandler.sendMessageDelayed(mPrivateHandler 6364 .obtainMessage(AWAKEN_SCROLL_BARS), 6365 ViewConfiguration.getScrollDefaultDelay()); 6366 // return false to indicate that we can't pan out of the 6367 // view space 6368 return !done; 6369 } else { 6370 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 6371 } 6372 break; 6373 } 6374 case MotionEvent.ACTION_UP: { 6375 if (!mConfirmMove && mIsEditingText && mSelectionStarted && 6376 mIsCaretSelection) { 6377 showPasteWindow(); 6378 stopTouch(); 6379 break; 6380 } 6381 // pass the touch events from UI thread to WebCore thread 6382 if (shouldForwardTouchEvent()) { 6383 TouchEventData ted = new TouchEventData(); 6384 ted.mIds = new int[1]; 6385 ted.mIds[0] = ev.getPointerId(0); 6386 ted.mAction = action; 6387 ted.mPoints = new Point[1]; 6388 ted.mPoints[0] = new Point(contentX, contentY); 6389 ted.mPointsInView = new Point[1]; 6390 ted.mPointsInView[0] = new Point(x, y); 6391 ted.mMetaState = ev.getMetaState(); 6392 ted.mReprocess = mDeferTouchProcess; 6393 ted.mNativeLayer = mCurrentScrollingLayerId; 6394 ted.mNativeLayerRect.set(mScrollingLayerRect); 6395 ted.mSequence = mTouchEventQueue.nextTouchSequence(); 6396 mTouchEventQueue.preQueueTouchEventData(ted); 6397 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 6398 } 6399 mLastTouchUpTime = eventTime; 6400 if (mSentAutoScrollMessage) { 6401 mAutoScrollX = mAutoScrollY = 0; 6402 } 6403 switch (mTouchMode) { 6404 case TOUCH_DOUBLE_TAP_MODE: // double tap 6405 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6406 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6407 if (inFullScreenMode() || mDeferTouchProcess) { 6408 TouchEventData ted = new TouchEventData(); 6409 ted.mIds = new int[1]; 6410 ted.mIds[0] = ev.getPointerId(0); 6411 ted.mAction = WebViewCore.ACTION_DOUBLETAP; 6412 ted.mPoints = new Point[1]; 6413 ted.mPoints[0] = new Point(contentX, contentY); 6414 ted.mPointsInView = new Point[1]; 6415 ted.mPointsInView[0] = new Point(x, y); 6416 ted.mMetaState = ev.getMetaState(); 6417 ted.mReprocess = mDeferTouchProcess; 6418 ted.mNativeLayer = nativeScrollableLayer( 6419 contentX, contentY, 6420 ted.mNativeLayerRect, null); 6421 ted.mSequence = mTouchEventQueue.nextTouchSequence(); 6422 mTouchEventQueue.preQueueTouchEventData(ted); 6423 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 6424 } else if (mPreventDefault != PREVENT_DEFAULT_YES){ 6425 mZoomManager.handleDoubleTap(mLastTouchX, mLastTouchY); 6426 mTouchMode = TOUCH_DONE_MODE; 6427 } 6428 break; 6429 case TOUCH_INIT_MODE: // tap 6430 case TOUCH_SHORTPRESS_START_MODE: 6431 case TOUCH_SHORTPRESS_MODE: 6432 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6433 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6434 if (mConfirmMove) { 6435 Log.w(LOGTAG, "Miss a drag as we are waiting for" + 6436 " WebCore's response for touch down."); 6437 if (mPreventDefault != PREVENT_DEFAULT_YES 6438 && (computeMaxScrollX() > 0 6439 || computeMaxScrollY() > 0)) { 6440 // If the user has performed a very quick touch 6441 // sequence it is possible that we may get here 6442 // before WebCore has had a chance to process the events. 6443 // In this case, any call to preventDefault in the 6444 // JS touch handler will not have been executed yet. 6445 // Hence we will see both the UI (now) and WebCore 6446 // (when context switches) handling the event, 6447 // regardless of whether the web developer actually 6448 // doeses preventDefault in their touch handler. This 6449 // is the nature of our asynchronous touch model. 6450 6451 // we will not rewrite drag code here, but we 6452 // will try fling if it applies. 6453 WebViewCore.reducePriority(); 6454 // to get better performance, pause updating the 6455 // picture 6456 WebViewCore.pauseUpdatePicture(mWebViewCore); 6457 // fall through to TOUCH_DRAG_MODE 6458 } else { 6459 // WebKit may consume the touch event and modify 6460 // DOM. drawContentPicture() will be called with 6461 // animateSroll as true for better performance. 6462 // Force redraw in high-quality. 6463 invalidate(); 6464 break; 6465 } 6466 } else { 6467 if (mSelectingText) { 6468 // tapping on selection or controls does nothing 6469 if (!mSelectionStarted) { 6470 selectionDone(); 6471 } 6472 break; 6473 } 6474 // only trigger double tap if the WebView is 6475 // scalable 6476 if (mTouchMode == TOUCH_INIT_MODE 6477 && (canZoomIn() || canZoomOut())) { 6478 mPrivateHandler.sendEmptyMessageDelayed( 6479 RELEASE_SINGLE_TAP, ViewConfiguration 6480 .getDoubleTapTimeout()); 6481 } else { 6482 doShortPress(); 6483 } 6484 break; 6485 } 6486 case TOUCH_DRAG_MODE: 6487 case TOUCH_DRAG_LAYER_MODE: 6488 case TOUCH_DRAG_TEXT_MODE: 6489 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 6490 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 6491 // if the user waits a while w/o moving before the 6492 // up, we don't want to do a fling 6493 if (eventTime - mLastTouchTime <= MIN_FLING_TIME) { 6494 if (mVelocityTracker == null) { 6495 Log.e(LOGTAG, "Got null mVelocityTracker when " 6496 + "mPreventDefault = " 6497 + mPreventDefault 6498 + " mDeferTouchProcess = " 6499 + mDeferTouchProcess); 6500 } else { 6501 mVelocityTracker.addMovement(ev); 6502 } 6503 // set to MOTIONLESS_IGNORE so that it won't keep 6504 // removing and sending message in 6505 // drawCoreAndCursorRing() 6506 mHeldMotionless = MOTIONLESS_IGNORE; 6507 doFling(); 6508 break; 6509 } else { 6510 if (mScroller.springBack(getScrollX(), getScrollY(), 0, 6511 computeMaxScrollX(), 0, 6512 computeMaxScrollY())) { 6513 invalidate(); 6514 } 6515 } 6516 // redraw in high-quality, as we're done dragging 6517 mHeldMotionless = MOTIONLESS_TRUE; 6518 invalidate(); 6519 // fall through 6520 case TOUCH_DRAG_START_MODE: 6521 // TOUCH_DRAG_START_MODE should not happen for the real 6522 // device as we almost certain will get a MOVE. But this 6523 // is possible on emulator. 6524 mLastVelocity = 0; 6525 WebViewCore.resumePriority(); 6526 if (!mSelectingText) { 6527 WebViewCore.resumeUpdatePicture(mWebViewCore); 6528 } 6529 break; 6530 } 6531 stopTouch(); 6532 break; 6533 } 6534 case MotionEvent.ACTION_CANCEL: { 6535 if (mTouchMode == TOUCH_DRAG_MODE) { 6536 mScroller.springBack(getScrollX(), getScrollY(), 0, 6537 computeMaxScrollX(), 0, computeMaxScrollY()); 6538 invalidate(); 6539 } 6540 cancelWebCoreTouchEvent(contentX, contentY, false); 6541 cancelTouch(); 6542 break; 6543 } 6544 } 6545 return true; 6546 } 6547 6548 private void passMultiTouchToWebKit(MotionEvent ev, long sequence) { 6549 TouchEventData ted = new TouchEventData(); 6550 ted.mAction = ev.getActionMasked(); 6551 final int count = ev.getPointerCount(); 6552 ted.mIds = new int[count]; 6553 ted.mPoints = new Point[count]; 6554 ted.mPointsInView = new Point[count]; 6555 for (int c = 0; c < count; c++) { 6556 ted.mIds[c] = ev.getPointerId(c); 6557 int x = viewToContentX((int) ev.getX(c) + getScrollX()); 6558 int y = viewToContentY((int) ev.getY(c) + getScrollY()); 6559 ted.mPoints[c] = new Point(x, y); 6560 ted.mPointsInView[c] = new Point((int) ev.getX(c), (int) ev.getY(c)); 6561 } 6562 if (ted.mAction == MotionEvent.ACTION_POINTER_DOWN 6563 || ted.mAction == MotionEvent.ACTION_POINTER_UP) { 6564 ted.mActionIndex = ev.getActionIndex(); 6565 } 6566 ted.mMetaState = ev.getMetaState(); 6567 ted.mReprocess = true; 6568 ted.mMotionEvent = MotionEvent.obtain(ev); 6569 ted.mSequence = sequence; 6570 mTouchEventQueue.preQueueTouchEventData(ted); 6571 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 6572 mWebView.cancelLongPress(); 6573 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6574 } 6575 6576 void handleMultiTouchInWebView(MotionEvent ev) { 6577 if (DebugFlags.WEB_VIEW) { 6578 Log.v(LOGTAG, "multi-touch: " + ev + " at " + ev.getEventTime() 6579 + " mTouchMode=" + mTouchMode 6580 + " numPointers=" + ev.getPointerCount() 6581 + " scrolloffset=(" + getScrollX() + "," + getScrollY() + ")"); 6582 } 6583 6584 final ScaleGestureDetector detector = 6585 mZoomManager.getMultiTouchGestureDetector(); 6586 6587 // A few apps use WebView but don't instantiate gesture detector. 6588 // We don't need to support multi touch for them. 6589 if (detector == null) return; 6590 6591 float x = ev.getX(); 6592 float y = ev.getY(); 6593 6594 if (mPreventDefault != PREVENT_DEFAULT_YES) { 6595 detector.onTouchEvent(ev); 6596 6597 if (detector.isInProgress()) { 6598 if (DebugFlags.WEB_VIEW) { 6599 Log.v(LOGTAG, "detector is in progress"); 6600 } 6601 mLastTouchTime = ev.getEventTime(); 6602 x = detector.getFocusX(); 6603 y = detector.getFocusY(); 6604 6605 mWebView.cancelLongPress(); 6606 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6607 if (!mZoomManager.supportsPanDuringZoom()) { 6608 return; 6609 } 6610 mTouchMode = TOUCH_DRAG_MODE; 6611 if (mVelocityTracker == null) { 6612 mVelocityTracker = VelocityTracker.obtain(); 6613 } 6614 } 6615 } 6616 6617 int action = ev.getActionMasked(); 6618 if (action == MotionEvent.ACTION_POINTER_DOWN) { 6619 cancelTouch(); 6620 action = MotionEvent.ACTION_DOWN; 6621 } else if (action == MotionEvent.ACTION_POINTER_UP && ev.getPointerCount() >= 2) { 6622 // set mLastTouchX/Y to the remaining points for multi-touch. 6623 mLastTouchX = Math.round(x); 6624 mLastTouchY = Math.round(y); 6625 } else if (action == MotionEvent.ACTION_MOVE) { 6626 // negative x or y indicate it is on the edge, skip it. 6627 if (x < 0 || y < 0) { 6628 return; 6629 } 6630 } 6631 6632 handleTouchEventCommon(ev, action, Math.round(x), Math.round(y)); 6633 } 6634 6635 private void cancelWebCoreTouchEvent(int x, int y, boolean removeEvents) { 6636 if (shouldForwardTouchEvent()) { 6637 if (removeEvents) { 6638 mWebViewCore.removeMessages(EventHub.TOUCH_EVENT); 6639 } 6640 TouchEventData ted = new TouchEventData(); 6641 ted.mIds = new int[1]; 6642 ted.mIds[0] = 0; 6643 ted.mPoints = new Point[1]; 6644 ted.mPoints[0] = new Point(x, y); 6645 ted.mPointsInView = new Point[1]; 6646 int viewX = contentToViewX(x) - getScrollX(); 6647 int viewY = contentToViewY(y) - getScrollY(); 6648 ted.mPointsInView[0] = new Point(viewX, viewY); 6649 ted.mAction = MotionEvent.ACTION_CANCEL; 6650 ted.mNativeLayer = nativeScrollableLayer( 6651 x, y, ted.mNativeLayerRect, null); 6652 ted.mSequence = mTouchEventQueue.nextTouchSequence(); 6653 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 6654 mPreventDefault = PREVENT_DEFAULT_IGNORE; 6655 6656 if (removeEvents) { 6657 // Mark this after sending the message above; we should 6658 // be willing to ignore the cancel event that we just sent. 6659 mTouchEventQueue.ignoreCurrentlyMissingEvents(); 6660 } 6661 } 6662 } 6663 6664 private void startTouch(float x, float y, long eventTime) { 6665 // Remember where the motion event started 6666 mStartTouchX = mLastTouchX = Math.round(x); 6667 mStartTouchY = mLastTouchY = Math.round(y); 6668 mLastTouchTime = eventTime; 6669 mVelocityTracker = VelocityTracker.obtain(); 6670 mSnapScrollMode = SNAP_NONE; 6671 } 6672 6673 private void startDrag() { 6674 WebViewCore.reducePriority(); 6675 // to get better performance, pause updating the picture 6676 WebViewCore.pauseUpdatePicture(mWebViewCore); 6677 nativeSetIsScrolling(true); 6678 6679 if (mHorizontalScrollBarMode != SCROLLBAR_ALWAYSOFF 6680 || mVerticalScrollBarMode != SCROLLBAR_ALWAYSOFF) { 6681 mZoomManager.invokeZoomPicker(); 6682 } 6683 } 6684 6685 private boolean doDrag(int deltaX, int deltaY) { 6686 boolean allDrag = true; 6687 if ((deltaX | deltaY) != 0) { 6688 int oldX = getScrollX(); 6689 int oldY = getScrollY(); 6690 int rangeX = computeMaxScrollX(); 6691 int rangeY = computeMaxScrollY(); 6692 final int contentX = (int)Math.floor(deltaX * mZoomManager.getInvScale()); 6693 final int contentY = (int)Math.floor(deltaY * mZoomManager.getInvScale()); 6694 6695 // Assume page scrolling and change below if we're wrong 6696 mTouchMode = TOUCH_DRAG_MODE; 6697 6698 // Check special scrolling before going to main page scrolling. 6699 if (mIsEditingText && mTouchInEditText && canTextScroll(deltaX, deltaY)) { 6700 // Edit text scrolling 6701 oldX = getTextScrollX(); 6702 rangeX = getMaxTextScrollX(); 6703 deltaX = contentX; 6704 oldY = getTextScrollY(); 6705 rangeY = getMaxTextScrollY(); 6706 deltaY = contentY; 6707 mTouchMode = TOUCH_DRAG_TEXT_MODE; 6708 allDrag = false; 6709 } else if (mCurrentScrollingLayerId != 0) { 6710 // Check the scrolling bounds to see if we will actually do any 6711 // scrolling. The rectangle is in document coordinates. 6712 final int maxX = mScrollingLayerRect.right; 6713 final int maxY = mScrollingLayerRect.bottom; 6714 final int resultX = Math.max(0, 6715 Math.min(mScrollingLayerRect.left + contentX, maxX)); 6716 final int resultY = Math.max(0, 6717 Math.min(mScrollingLayerRect.top + contentY, maxY)); 6718 6719 if (resultX != mScrollingLayerRect.left || 6720 resultY != mScrollingLayerRect.top) { 6721 // In case we switched to dragging the page. 6722 mTouchMode = TOUCH_DRAG_LAYER_MODE; 6723 deltaX = contentX; 6724 deltaY = contentY; 6725 oldX = mScrollingLayerRect.left; 6726 oldY = mScrollingLayerRect.top; 6727 rangeX = maxX; 6728 rangeY = maxY; 6729 allDrag = false; 6730 } 6731 } 6732 6733 if (mOverScrollGlow != null) { 6734 mOverScrollGlow.setOverScrollDeltas(deltaX, deltaY); 6735 } 6736 6737 mWebViewPrivate.overScrollBy(deltaX, deltaY, oldX, oldY, 6738 rangeX, rangeY, 6739 mOverscrollDistance, mOverscrollDistance, true); 6740 if (mOverScrollGlow != null && mOverScrollGlow.isAnimating()) { 6741 invalidate(); 6742 } 6743 } 6744 mZoomManager.keepZoomPickerVisible(); 6745 return allDrag; 6746 } 6747 6748 private void stopTouch() { 6749 if (mScroller.isFinished() && !mSelectingText 6750 && (mTouchMode == TOUCH_DRAG_MODE 6751 || mTouchMode == TOUCH_DRAG_LAYER_MODE)) { 6752 WebViewCore.resumePriority(); 6753 WebViewCore.resumeUpdatePicture(mWebViewCore); 6754 nativeSetIsScrolling(false); 6755 } 6756 6757 // we also use mVelocityTracker == null to tell us that we are 6758 // not "moving around", so we can take the slower/prettier 6759 // mode in the drawing code 6760 if (mVelocityTracker != null) { 6761 mVelocityTracker.recycle(); 6762 mVelocityTracker = null; 6763 } 6764 6765 // Release any pulled glows 6766 if (mOverScrollGlow != null) { 6767 mOverScrollGlow.releaseAll(); 6768 } 6769 6770 if (mSelectingText) { 6771 mSelectionStarted = false; 6772 syncSelectionCursors(); 6773 if (mIsCaretSelection) { 6774 resetCaretTimer(); 6775 } 6776 invalidate(); 6777 } 6778 } 6779 6780 private void cancelTouch() { 6781 // we also use mVelocityTracker == null to tell us that we are 6782 // not "moving around", so we can take the slower/prettier 6783 // mode in the drawing code 6784 if (mVelocityTracker != null) { 6785 mVelocityTracker.recycle(); 6786 mVelocityTracker = null; 6787 } 6788 6789 if ((mTouchMode == TOUCH_DRAG_MODE 6790 || mTouchMode == TOUCH_DRAG_LAYER_MODE) && !mSelectingText) { 6791 WebViewCore.resumePriority(); 6792 WebViewCore.resumeUpdatePicture(mWebViewCore); 6793 nativeSetIsScrolling(false); 6794 } 6795 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6796 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6797 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 6798 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 6799 removeTouchHighlight(); 6800 mHeldMotionless = MOTIONLESS_TRUE; 6801 mTouchMode = TOUCH_DONE_MODE; 6802 } 6803 6804 private void snapDraggingCursor(int x, int y) { 6805 x += viewToContentDimension(mSelectDraggingOffset.x); 6806 y += viewToContentDimension(mSelectDraggingOffset.y); 6807 if (mSelectDraggingTextQuad.containsPoint(x, y)) { 6808 float scale = scaleAlongSegment(x, y, 6809 mSelectDraggingTextQuad.p4, mSelectDraggingTextQuad.p3); 6810 // clamp scale to ensure point is on the bottom segment 6811 scale = Math.max(0.0f, scale); 6812 scale = Math.min(scale, 1.0f); 6813 float newX = scaleCoordinate(scale, 6814 mSelectDraggingTextQuad.p4.x, mSelectDraggingTextQuad.p3.x); 6815 float newY = scaleCoordinate(scale, 6816 mSelectDraggingTextQuad.p4.y, mSelectDraggingTextQuad.p3.y); 6817 mSelectDraggingCursor.set(Math.round(newX), Math.round(newY)); 6818 } else { 6819 mSelectDraggingCursor.set(x, y); 6820 } 6821 } 6822 6823 private static float scaleCoordinate(float scale, float coord1, float coord2) { 6824 float diff = coord2 - coord1; 6825 return coord1 + (scale * diff); 6826 } 6827 6828 @Override 6829 public boolean onGenericMotionEvent(MotionEvent event) { 6830 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 6831 switch (event.getAction()) { 6832 case MotionEvent.ACTION_SCROLL: { 6833 final float vscroll; 6834 final float hscroll; 6835 if ((event.getMetaState() & KeyEvent.META_SHIFT_ON) != 0) { 6836 vscroll = 0; 6837 hscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 6838 } else { 6839 vscroll = -event.getAxisValue(MotionEvent.AXIS_VSCROLL); 6840 hscroll = event.getAxisValue(MotionEvent.AXIS_HSCROLL); 6841 } 6842 if (hscroll != 0 || vscroll != 0) { 6843 final int vdelta = (int) (vscroll * 6844 mWebViewPrivate.getVerticalScrollFactor()); 6845 final int hdelta = (int) (hscroll * 6846 mWebViewPrivate.getHorizontalScrollFactor()); 6847 if (pinScrollBy(hdelta, vdelta, false, 0)) { 6848 return true; 6849 } 6850 } 6851 } 6852 } 6853 } 6854 return mWebViewPrivate.super_onGenericMotionEvent(event); 6855 } 6856 6857 private long mTrackballFirstTime = 0; 6858 private long mTrackballLastTime = 0; 6859 private float mTrackballRemainsX = 0.0f; 6860 private float mTrackballRemainsY = 0.0f; 6861 private int mTrackballXMove = 0; 6862 private int mTrackballYMove = 0; 6863 private boolean mSelectingText = false; 6864 private boolean mSelectionStarted = false; 6865 private static final int TRACKBALL_KEY_TIMEOUT = 1000; 6866 private static final int TRACKBALL_TIMEOUT = 200; 6867 private static final int TRACKBALL_WAIT = 100; 6868 private static final int TRACKBALL_SCALE = 400; 6869 private static final int TRACKBALL_SCROLL_COUNT = 5; 6870 private static final int TRACKBALL_MOVE_COUNT = 10; 6871 private static final int TRACKBALL_MULTIPLIER = 3; 6872 private static final int SELECT_CURSOR_OFFSET = 16; 6873 private static final int SELECT_SCROLL = 5; 6874 private int mSelectX = 0; 6875 private int mSelectY = 0; 6876 private boolean mTrackballDown = false; 6877 private long mTrackballUpTime = 0; 6878 private long mLastCursorTime = 0; 6879 private Rect mLastCursorBounds; 6880 6881 // Set by default; BrowserActivity clears to interpret trackball data 6882 // directly for movement. Currently, the framework only passes 6883 // arrow key events, not trackball events, from one child to the next 6884 private boolean mMapTrackballToArrowKeys = true; 6885 6886 private DrawData mDelaySetPicture; 6887 private DrawData mLoadedPicture; 6888 6889 public void setMapTrackballToArrowKeys(boolean setMap) { 6890 mMapTrackballToArrowKeys = setMap; 6891 } 6892 6893 void resetTrackballTime() { 6894 mTrackballLastTime = 0; 6895 } 6896 6897 @Override 6898 public boolean onTrackballEvent(MotionEvent ev) { 6899 long time = ev.getEventTime(); 6900 if ((ev.getMetaState() & KeyEvent.META_ALT_ON) != 0) { 6901 if (ev.getY() > 0) pageDown(true); 6902 if (ev.getY() < 0) pageUp(true); 6903 return true; 6904 } 6905 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 6906 if (mSelectingText) { 6907 return true; // discard press if copy in progress 6908 } 6909 mTrackballDown = true; 6910 if (mNativeClass == 0) { 6911 return false; 6912 } 6913 if (DebugFlags.WEB_VIEW) { 6914 Log.v(LOGTAG, "onTrackballEvent down ev=" + ev 6915 + " time=" + time 6916 + " mLastCursorTime=" + mLastCursorTime); 6917 } 6918 if (mWebView.isInTouchMode()) mWebView.requestFocusFromTouch(); 6919 return false; // let common code in onKeyDown at it 6920 } 6921 if (ev.getAction() == MotionEvent.ACTION_UP) { 6922 // LONG_PRESS_CENTER is set in common onKeyDown 6923 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 6924 mTrackballDown = false; 6925 mTrackballUpTime = time; 6926 if (mSelectingText) { 6927 copySelection(); 6928 selectionDone(); 6929 return true; // discard press if copy in progress 6930 } 6931 if (DebugFlags.WEB_VIEW) { 6932 Log.v(LOGTAG, "onTrackballEvent up ev=" + ev 6933 + " time=" + time 6934 ); 6935 } 6936 return false; // let common code in onKeyUp at it 6937 } 6938 if ((mMapTrackballToArrowKeys && (ev.getMetaState() & KeyEvent.META_SHIFT_ON) == 0) || 6939 AccessibilityManager.getInstance(mContext).isEnabled()) { 6940 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit"); 6941 return false; 6942 } 6943 if (mTrackballDown) { 6944 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent down quit"); 6945 return true; // discard move if trackball is down 6946 } 6947 if (time - mTrackballUpTime < TRACKBALL_TIMEOUT) { 6948 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent up timeout quit"); 6949 return true; 6950 } 6951 // TODO: alternatively we can do panning as touch does 6952 switchOutDrawHistory(); 6953 if (time - mTrackballLastTime > TRACKBALL_TIMEOUT) { 6954 if (DebugFlags.WEB_VIEW) { 6955 Log.v(LOGTAG, "onTrackballEvent time=" 6956 + time + " last=" + mTrackballLastTime); 6957 } 6958 mTrackballFirstTime = time; 6959 mTrackballXMove = mTrackballYMove = 0; 6960 } 6961 mTrackballLastTime = time; 6962 if (DebugFlags.WEB_VIEW) { 6963 Log.v(LOGTAG, "onTrackballEvent ev=" + ev + " time=" + time); 6964 } 6965 mTrackballRemainsX += ev.getX(); 6966 mTrackballRemainsY += ev.getY(); 6967 doTrackball(time, ev.getMetaState()); 6968 return true; 6969 } 6970 6971 private int scaleTrackballX(float xRate, int width) { 6972 int xMove = (int) (xRate / TRACKBALL_SCALE * width); 6973 int nextXMove = xMove; 6974 if (xMove > 0) { 6975 if (xMove > mTrackballXMove) { 6976 xMove -= mTrackballXMove; 6977 } 6978 } else if (xMove < mTrackballXMove) { 6979 xMove -= mTrackballXMove; 6980 } 6981 mTrackballXMove = nextXMove; 6982 return xMove; 6983 } 6984 6985 private int scaleTrackballY(float yRate, int height) { 6986 int yMove = (int) (yRate / TRACKBALL_SCALE * height); 6987 int nextYMove = yMove; 6988 if (yMove > 0) { 6989 if (yMove > mTrackballYMove) { 6990 yMove -= mTrackballYMove; 6991 } 6992 } else if (yMove < mTrackballYMove) { 6993 yMove -= mTrackballYMove; 6994 } 6995 mTrackballYMove = nextYMove; 6996 return yMove; 6997 } 6998 6999 private int keyCodeToSoundsEffect(int keyCode) { 7000 switch(keyCode) { 7001 case KeyEvent.KEYCODE_DPAD_UP: 7002 return SoundEffectConstants.NAVIGATION_UP; 7003 case KeyEvent.KEYCODE_DPAD_RIGHT: 7004 return SoundEffectConstants.NAVIGATION_RIGHT; 7005 case KeyEvent.KEYCODE_DPAD_DOWN: 7006 return SoundEffectConstants.NAVIGATION_DOWN; 7007 case KeyEvent.KEYCODE_DPAD_LEFT: 7008 return SoundEffectConstants.NAVIGATION_LEFT; 7009 } 7010 return 0; 7011 } 7012 7013 private void doTrackball(long time, int metaState) { 7014 int elapsed = (int) (mTrackballLastTime - mTrackballFirstTime); 7015 if (elapsed == 0) { 7016 elapsed = TRACKBALL_TIMEOUT; 7017 } 7018 float xRate = mTrackballRemainsX * 1000 / elapsed; 7019 float yRate = mTrackballRemainsY * 1000 / elapsed; 7020 int viewWidth = getViewWidth(); 7021 int viewHeight = getViewHeight(); 7022 float ax = Math.abs(xRate); 7023 float ay = Math.abs(yRate); 7024 float maxA = Math.max(ax, ay); 7025 if (DebugFlags.WEB_VIEW) { 7026 Log.v(LOGTAG, "doTrackball elapsed=" + elapsed 7027 + " xRate=" + xRate 7028 + " yRate=" + yRate 7029 + " mTrackballRemainsX=" + mTrackballRemainsX 7030 + " mTrackballRemainsY=" + mTrackballRemainsY); 7031 } 7032 int width = mContentWidth - viewWidth; 7033 int height = mContentHeight - viewHeight; 7034 if (width < 0) width = 0; 7035 if (height < 0) height = 0; 7036 ax = Math.abs(mTrackballRemainsX * TRACKBALL_MULTIPLIER); 7037 ay = Math.abs(mTrackballRemainsY * TRACKBALL_MULTIPLIER); 7038 maxA = Math.max(ax, ay); 7039 int count = Math.max(0, (int) maxA); 7040 int oldScrollX = getScrollX(); 7041 int oldScrollY = getScrollY(); 7042 if (count > 0) { 7043 int selectKeyCode = ax < ay ? mTrackballRemainsY < 0 ? 7044 KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN : 7045 mTrackballRemainsX < 0 ? KeyEvent.KEYCODE_DPAD_LEFT : 7046 KeyEvent.KEYCODE_DPAD_RIGHT; 7047 count = Math.min(count, TRACKBALL_MOVE_COUNT); 7048 if (DebugFlags.WEB_VIEW) { 7049 Log.v(LOGTAG, "doTrackball keyCode=" + selectKeyCode 7050 + " count=" + count 7051 + " mTrackballRemainsX=" + mTrackballRemainsX 7052 + " mTrackballRemainsY=" + mTrackballRemainsY); 7053 } 7054 if (mNativeClass != 0) { 7055 for (int i = 0; i < count; i++) { 7056 letPageHandleNavKey(selectKeyCode, time, true, metaState); 7057 } 7058 letPageHandleNavKey(selectKeyCode, time, false, metaState); 7059 } 7060 mTrackballRemainsX = mTrackballRemainsY = 0; 7061 } 7062 if (count >= TRACKBALL_SCROLL_COUNT) { 7063 int xMove = scaleTrackballX(xRate, width); 7064 int yMove = scaleTrackballY(yRate, height); 7065 if (DebugFlags.WEB_VIEW) { 7066 Log.v(LOGTAG, "doTrackball pinScrollBy" 7067 + " count=" + count 7068 + " xMove=" + xMove + " yMove=" + yMove 7069 + " mScrollX-oldScrollX=" + (getScrollX()-oldScrollX) 7070 + " mScrollY-oldScrollY=" + (getScrollY()-oldScrollY) 7071 ); 7072 } 7073 if (Math.abs(getScrollX() - oldScrollX) > Math.abs(xMove)) { 7074 xMove = 0; 7075 } 7076 if (Math.abs(getScrollY() - oldScrollY) > Math.abs(yMove)) { 7077 yMove = 0; 7078 } 7079 if (xMove != 0 || yMove != 0) { 7080 pinScrollBy(xMove, yMove, true, 0); 7081 } 7082 } 7083 } 7084 7085 /** 7086 * Compute the maximum horizontal scroll position. Used by {@link OverScrollGlow}. 7087 * @return Maximum horizontal scroll position within real content 7088 */ 7089 int computeMaxScrollX() { 7090 return Math.max(computeRealHorizontalScrollRange() - getViewWidth(), 0); 7091 } 7092 7093 /** 7094 * Compute the maximum vertical scroll position. Used by {@link OverScrollGlow}. 7095 * @return Maximum vertical scroll position within real content 7096 */ 7097 int computeMaxScrollY() { 7098 return Math.max(computeRealVerticalScrollRange() + getTitleHeight() 7099 - getViewHeightWithTitle(), 0); 7100 } 7101 7102 boolean updateScrollCoordinates(int x, int y) { 7103 int oldX = getScrollX(); 7104 int oldY = getScrollY(); 7105 setScrollXRaw(x); 7106 setScrollYRaw(y); 7107 if (oldX != getScrollX() || oldY != getScrollY()) { 7108 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), oldX, oldY); 7109 return true; 7110 } else { 7111 return false; 7112 } 7113 } 7114 7115 public void flingScroll(int vx, int vy) { 7116 mScroller.fling(getScrollX(), getScrollY(), vx, vy, 0, computeMaxScrollX(), 0, 7117 computeMaxScrollY(), mOverflingDistance, mOverflingDistance); 7118 invalidate(); 7119 } 7120 7121 private void doFling() { 7122 if (mVelocityTracker == null) { 7123 return; 7124 } 7125 int maxX = computeMaxScrollX(); 7126 int maxY = computeMaxScrollY(); 7127 7128 mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling); 7129 int vx = (int) mVelocityTracker.getXVelocity(); 7130 int vy = (int) mVelocityTracker.getYVelocity(); 7131 7132 int scrollX = getScrollX(); 7133 int scrollY = getScrollY(); 7134 int overscrollDistance = mOverscrollDistance; 7135 int overflingDistance = mOverflingDistance; 7136 7137 // Use the layer's scroll data if applicable. 7138 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 7139 scrollX = mScrollingLayerRect.left; 7140 scrollY = mScrollingLayerRect.top; 7141 maxX = mScrollingLayerRect.right; 7142 maxY = mScrollingLayerRect.bottom; 7143 // No overscrolling for layers. 7144 overscrollDistance = overflingDistance = 0; 7145 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 7146 scrollX = getTextScrollX(); 7147 scrollY = getTextScrollY(); 7148 maxX = getMaxTextScrollX(); 7149 maxY = getMaxTextScrollY(); 7150 // No overscrolling for edit text. 7151 overscrollDistance = overflingDistance = 0; 7152 } 7153 7154 if (mSnapScrollMode != SNAP_NONE) { 7155 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 7156 vy = 0; 7157 } else { 7158 vx = 0; 7159 } 7160 } 7161 if ((maxX == 0 && vy == 0) || (maxY == 0 && vx == 0)) { 7162 WebViewCore.resumePriority(); 7163 if (!mSelectingText) { 7164 WebViewCore.resumeUpdatePicture(mWebViewCore); 7165 } 7166 if (mScroller.springBack(scrollX, scrollY, 0, maxX, 0, maxY)) { 7167 invalidate(); 7168 } 7169 return; 7170 } 7171 float currentVelocity = mScroller.getCurrVelocity(); 7172 float velocity = (float) Math.hypot(vx, vy); 7173 if (mLastVelocity > 0 && currentVelocity > 0 && velocity 7174 > mLastVelocity * MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION) { 7175 float deltaR = (float) (Math.abs(Math.atan2(mLastVelY, mLastVelX) 7176 - Math.atan2(vy, vx))); 7177 final float circle = (float) (Math.PI) * 2.0f; 7178 if (deltaR > circle * 0.9f || deltaR < circle * 0.1f) { 7179 vx += currentVelocity * mLastVelX / mLastVelocity; 7180 vy += currentVelocity * mLastVelY / mLastVelocity; 7181 velocity = (float) Math.hypot(vx, vy); 7182 if (DebugFlags.WEB_VIEW) { 7183 Log.v(LOGTAG, "doFling vx= " + vx + " vy=" + vy); 7184 } 7185 } else if (DebugFlags.WEB_VIEW) { 7186 Log.v(LOGTAG, "doFling missed " + deltaR / circle); 7187 } 7188 } else if (DebugFlags.WEB_VIEW) { 7189 Log.v(LOGTAG, "doFling start last=" + mLastVelocity 7190 + " current=" + currentVelocity 7191 + " vx=" + vx + " vy=" + vy 7192 + " maxX=" + maxX + " maxY=" + maxY 7193 + " scrollX=" + scrollX + " scrollY=" + scrollY 7194 + " layer=" + mCurrentScrollingLayerId); 7195 } 7196 7197 // Allow sloppy flings without overscrolling at the edges. 7198 if ((scrollX == 0 || scrollX == maxX) && Math.abs(vx) < Math.abs(vy)) { 7199 vx = 0; 7200 } 7201 if ((scrollY == 0 || scrollY == maxY) && Math.abs(vy) < Math.abs(vx)) { 7202 vy = 0; 7203 } 7204 7205 if (overscrollDistance < overflingDistance) { 7206 if ((vx > 0 && scrollX == -overscrollDistance) || 7207 (vx < 0 && scrollX == maxX + overscrollDistance)) { 7208 vx = 0; 7209 } 7210 if ((vy > 0 && scrollY == -overscrollDistance) || 7211 (vy < 0 && scrollY == maxY + overscrollDistance)) { 7212 vy = 0; 7213 } 7214 } 7215 7216 mLastVelX = vx; 7217 mLastVelY = vy; 7218 mLastVelocity = velocity; 7219 7220 // no horizontal overscroll if the content just fits 7221 mScroller.fling(scrollX, scrollY, -vx, -vy, 0, maxX, 0, maxY, 7222 maxX == 0 ? 0 : overflingDistance, overflingDistance); 7223 // Duration is calculated based on velocity. With range boundaries and overscroll 7224 // we may not know how long the final animation will take. (Hence the deprecation 7225 // warning on the call below.) It's not a big deal for scroll bars but if webcore 7226 // resumes during this effect we will take a performance hit. See computeScroll; 7227 // we resume webcore there when the animation is finished. 7228 final int time = mScroller.getDuration(); 7229 7230 // Suppress scrollbars for layer scrolling. 7231 if (mTouchMode != TOUCH_DRAG_LAYER_MODE && mTouchMode != TOUCH_DRAG_TEXT_MODE) { 7232 mWebViewPrivate.awakenScrollBars(time); 7233 } 7234 7235 invalidate(); 7236 } 7237 7238 /** 7239 * See {@link WebView#getZoomControls()} 7240 */ 7241 @Override 7242 @Deprecated 7243 public View getZoomControls() { 7244 if (!getSettings().supportZoom()) { 7245 Log.w(LOGTAG, "This WebView doesn't support zoom."); 7246 return null; 7247 } 7248 return mZoomManager.getExternalZoomPicker(); 7249 } 7250 7251 void dismissZoomControl() { 7252 mZoomManager.dismissZoomPicker(); 7253 } 7254 7255 float getDefaultZoomScale() { 7256 return mZoomManager.getDefaultScale(); 7257 } 7258 7259 /** 7260 * Return the overview scale of the WebView 7261 * @return The overview scale. 7262 */ 7263 float getZoomOverviewScale() { 7264 return mZoomManager.getZoomOverviewScale(); 7265 } 7266 7267 /** 7268 * See {@link WebView#canZoomIn()} 7269 */ 7270 @Override 7271 public boolean canZoomIn() { 7272 return mZoomManager.canZoomIn(); 7273 } 7274 7275 /** 7276 * See {@link WebView#canZoomOut()} 7277 */ 7278 @Override 7279 public boolean canZoomOut() { 7280 return mZoomManager.canZoomOut(); 7281 } 7282 7283 /** 7284 * See {@link WebView#zoomIn()} 7285 */ 7286 @Override 7287 public boolean zoomIn() { 7288 return mZoomManager.zoomIn(); 7289 } 7290 7291 /** 7292 * See {@link WebView#zoomOut()} 7293 */ 7294 @Override 7295 public boolean zoomOut() { 7296 return mZoomManager.zoomOut(); 7297 } 7298 7299 private void doShortPress() { 7300 if (mNativeClass == 0) { 7301 return; 7302 } 7303 if (mPreventDefault == PREVENT_DEFAULT_YES) { 7304 return; 7305 } 7306 mTouchMode = TOUCH_DONE_MODE; 7307 switchOutDrawHistory(); 7308 if (!mTouchHighlightRegion.isEmpty()) { 7309 // set mTouchHighlightRequested to 0 to cause an immediate 7310 // drawing of the touch rings 7311 mTouchHighlightRequested = 0; 7312 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 7313 mPrivateHandler.postDelayed(new Runnable() { 7314 @Override 7315 public void run() { 7316 removeTouchHighlight(); 7317 } 7318 }, ViewConfiguration.getPressedStateDuration()); 7319 } 7320 if (mFocusedNode != null && mFocusedNode.mIntentUrl != null) { 7321 mWebView.playSoundEffect(SoundEffectConstants.CLICK); 7322 overrideLoading(mFocusedNode.mIntentUrl); 7323 } else { 7324 WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData(); 7325 // use "0" as generation id to inform WebKit to use the same x/y as 7326 // it used when processing GET_TOUCH_HIGHLIGHT_RECTS 7327 touchUpData.mMoveGeneration = 0; 7328 mWebViewCore.sendMessage(EventHub.TOUCH_UP, touchUpData); 7329 } 7330 } 7331 7332 /* 7333 * Return true if the rect (e.g. plugin) is fully visible and maximized 7334 * inside the WebView. 7335 */ 7336 boolean isRectFitOnScreen(Rect rect) { 7337 final int rectWidth = rect.width(); 7338 final int rectHeight = rect.height(); 7339 final int viewWidth = getViewWidth(); 7340 final int viewHeight = getViewHeightWithTitle(); 7341 float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight / rectHeight); 7342 scale = mZoomManager.computeScaleWithLimits(scale); 7343 return !mZoomManager.willScaleTriggerZoom(scale) 7344 && contentToViewX(rect.left) >= getScrollX() 7345 && contentToViewX(rect.right) <= getScrollX() + viewWidth 7346 && contentToViewY(rect.top) >= getScrollY() 7347 && contentToViewY(rect.bottom) <= getScrollY() + viewHeight; 7348 } 7349 7350 /* 7351 * Maximize and center the rectangle, specified in the document coordinate 7352 * space, inside the WebView. If the zoom doesn't need to be changed, do an 7353 * animated scroll to center it. If the zoom needs to be changed, find the 7354 * zoom center and do a smooth zoom transition. The rect is in document 7355 * coordinates 7356 */ 7357 void centerFitRect(Rect rect) { 7358 final int rectWidth = rect.width(); 7359 final int rectHeight = rect.height(); 7360 final int viewWidth = getViewWidth(); 7361 final int viewHeight = getViewHeightWithTitle(); 7362 float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight 7363 / rectHeight); 7364 scale = mZoomManager.computeScaleWithLimits(scale); 7365 if (!mZoomManager.willScaleTriggerZoom(scale)) { 7366 pinScrollTo(contentToViewX(rect.left + rectWidth / 2) - viewWidth / 2, 7367 contentToViewY(rect.top + rectHeight / 2) - viewHeight / 2, 7368 true, 0); 7369 } else { 7370 float actualScale = mZoomManager.getScale(); 7371 float oldScreenX = rect.left * actualScale - getScrollX(); 7372 float rectViewX = rect.left * scale; 7373 float rectViewWidth = rectWidth * scale; 7374 float newMaxWidth = mContentWidth * scale; 7375 float newScreenX = (viewWidth - rectViewWidth) / 2; 7376 // pin the newX to the WebView 7377 if (newScreenX > rectViewX) { 7378 newScreenX = rectViewX; 7379 } else if (newScreenX > (newMaxWidth - rectViewX - rectViewWidth)) { 7380 newScreenX = viewWidth - (newMaxWidth - rectViewX); 7381 } 7382 float zoomCenterX = (oldScreenX * scale - newScreenX * actualScale) 7383 / (scale - actualScale); 7384 float oldScreenY = rect.top * actualScale + getTitleHeight() 7385 - getScrollY(); 7386 float rectViewY = rect.top * scale + getTitleHeight(); 7387 float rectViewHeight = rectHeight * scale; 7388 float newMaxHeight = mContentHeight * scale + getTitleHeight(); 7389 float newScreenY = (viewHeight - rectViewHeight) / 2; 7390 // pin the newY to the WebView 7391 if (newScreenY > rectViewY) { 7392 newScreenY = rectViewY; 7393 } else if (newScreenY > (newMaxHeight - rectViewY - rectViewHeight)) { 7394 newScreenY = viewHeight - (newMaxHeight - rectViewY); 7395 } 7396 float zoomCenterY = (oldScreenY * scale - newScreenY * actualScale) 7397 / (scale - actualScale); 7398 mZoomManager.setZoomCenter(zoomCenterX, zoomCenterY); 7399 mZoomManager.startZoomAnimation(scale, false); 7400 } 7401 } 7402 7403 // Called by JNI to handle a touch on a node representing an email address, 7404 // address, or phone number 7405 private void overrideLoading(String url) { 7406 mCallbackProxy.uiOverrideUrlLoading(url); 7407 } 7408 7409 @Override 7410 public boolean requestFocus(int direction, Rect previouslyFocusedRect) { 7411 // FIXME: If a subwindow is showing find, and the user touches the 7412 // background window, it can steal focus. 7413 if (mFindIsUp) return false; 7414 boolean result = false; 7415 result = mWebViewPrivate.super_requestFocus(direction, previouslyFocusedRect); 7416 if (mWebViewCore.getSettings().getNeedInitialFocus() && !mWebView.isInTouchMode()) { 7417 // For cases such as GMail, where we gain focus from a direction, 7418 // we want to move to the first available link. 7419 // FIXME: If there are no visible links, we may not want to 7420 int fakeKeyDirection = 0; 7421 switch(direction) { 7422 case View.FOCUS_UP: 7423 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_UP; 7424 break; 7425 case View.FOCUS_DOWN: 7426 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_DOWN; 7427 break; 7428 case View.FOCUS_LEFT: 7429 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_LEFT; 7430 break; 7431 case View.FOCUS_RIGHT: 7432 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_RIGHT; 7433 break; 7434 default: 7435 return result; 7436 } 7437 // TODO: Send initial focus request to webkit (b/6108927) 7438 } 7439 return result; 7440 } 7441 7442 @Override 7443 public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 7444 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 7445 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 7446 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 7447 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 7448 7449 int measuredHeight = heightSize; 7450 int measuredWidth = widthSize; 7451 7452 // Grab the content size from WebViewCore. 7453 int contentHeight = contentToViewDimension(mContentHeight); 7454 int contentWidth = contentToViewDimension(mContentWidth); 7455 7456// Log.d(LOGTAG, "------- measure " + heightMode); 7457 7458 if (heightMode != MeasureSpec.EXACTLY) { 7459 mHeightCanMeasure = true; 7460 measuredHeight = contentHeight; 7461 if (heightMode == MeasureSpec.AT_MOST) { 7462 // If we are larger than the AT_MOST height, then our height can 7463 // no longer be measured and we should scroll internally. 7464 if (measuredHeight > heightSize) { 7465 measuredHeight = heightSize; 7466 mHeightCanMeasure = false; 7467 measuredHeight |= View.MEASURED_STATE_TOO_SMALL; 7468 } 7469 } 7470 } else { 7471 mHeightCanMeasure = false; 7472 } 7473 if (mNativeClass != 0) { 7474 nativeSetHeightCanMeasure(mHeightCanMeasure); 7475 } 7476 // For the width, always use the given size unless unspecified. 7477 if (widthMode == MeasureSpec.UNSPECIFIED) { 7478 mWidthCanMeasure = true; 7479 measuredWidth = contentWidth; 7480 } else { 7481 if (measuredWidth < contentWidth) { 7482 measuredWidth |= View.MEASURED_STATE_TOO_SMALL; 7483 } 7484 mWidthCanMeasure = false; 7485 } 7486 7487 synchronized (this) { 7488 mWebViewPrivate.setMeasuredDimension(measuredWidth, measuredHeight); 7489 } 7490 } 7491 7492 @Override 7493 public boolean requestChildRectangleOnScreen(View child, 7494 Rect rect, 7495 boolean immediate) { 7496 if (mNativeClass == 0) { 7497 return false; 7498 } 7499 // don't scroll while in zoom animation. When it is done, we will adjust 7500 // the necessary components 7501 if (mZoomManager.isFixedLengthAnimationInProgress()) { 7502 return false; 7503 } 7504 7505 rect.offset(child.getLeft() - child.getScrollX(), 7506 child.getTop() - child.getScrollY()); 7507 7508 Rect content = new Rect(viewToContentX(getScrollX()), 7509 viewToContentY(getScrollY()), 7510 viewToContentX(getScrollX() + getWidth() 7511 - mWebView.getVerticalScrollbarWidth()), 7512 viewToContentY(getScrollY() + getViewHeightWithTitle())); 7513 int screenTop = contentToViewY(content.top); 7514 int screenBottom = contentToViewY(content.bottom); 7515 int height = screenBottom - screenTop; 7516 int scrollYDelta = 0; 7517 7518 if (rect.bottom > screenBottom) { 7519 int oneThirdOfScreenHeight = height / 3; 7520 if (rect.height() > 2 * oneThirdOfScreenHeight) { 7521 // If the rectangle is too tall to fit in the bottom two thirds 7522 // of the screen, place it at the top. 7523 scrollYDelta = rect.top - screenTop; 7524 } else { 7525 // If the rectangle will still fit on screen, we want its 7526 // top to be in the top third of the screen. 7527 scrollYDelta = rect.top - (screenTop + oneThirdOfScreenHeight); 7528 } 7529 } else if (rect.top < screenTop) { 7530 scrollYDelta = rect.top - screenTop; 7531 } 7532 7533 int screenLeft = contentToViewX(content.left); 7534 int screenRight = contentToViewX(content.right); 7535 int width = screenRight - screenLeft; 7536 int scrollXDelta = 0; 7537 7538 if (rect.right > screenRight && rect.left > screenLeft) { 7539 if (rect.width() > width) { 7540 scrollXDelta += (rect.left - screenLeft); 7541 } else { 7542 scrollXDelta += (rect.right - screenRight); 7543 } 7544 } else if (rect.left < screenLeft) { 7545 scrollXDelta -= (screenLeft - rect.left); 7546 } 7547 7548 if ((scrollYDelta | scrollXDelta) != 0) { 7549 return pinScrollBy(scrollXDelta, scrollYDelta, !immediate, 0); 7550 } 7551 7552 return false; 7553 } 7554 7555 /* package */ void replaceTextfieldText(int oldStart, int oldEnd, 7556 String replace, int newStart, int newEnd) { 7557 WebViewCore.ReplaceTextData arg = new WebViewCore.ReplaceTextData(); 7558 arg.mReplace = replace; 7559 arg.mNewStart = newStart; 7560 arg.mNewEnd = newEnd; 7561 mTextGeneration++; 7562 arg.mTextGeneration = mTextGeneration; 7563 sendBatchableInputMessage(EventHub.REPLACE_TEXT, oldStart, oldEnd, arg); 7564 } 7565 7566 /* package */ void passToJavaScript(String currentText, KeyEvent event) { 7567 // check if mWebViewCore has been destroyed 7568 if (mWebViewCore == null) { 7569 return; 7570 } 7571 WebViewCore.JSKeyData arg = new WebViewCore.JSKeyData(); 7572 arg.mEvent = event; 7573 arg.mCurrentText = currentText; 7574 // Increase our text generation number, and pass it to webcore thread 7575 mTextGeneration++; 7576 mWebViewCore.sendMessage(EventHub.PASS_TO_JS, mTextGeneration, 0, arg); 7577 // WebKit's document state is not saved until about to leave the page. 7578 // To make sure the host application, like Browser, has the up to date 7579 // document state when it goes to background, we force to save the 7580 // document state. 7581 mWebViewCore.removeMessages(EventHub.SAVE_DOCUMENT_STATE); 7582 mWebViewCore.sendMessageDelayed(EventHub.SAVE_DOCUMENT_STATE, null, 1000); 7583 } 7584 7585 public synchronized WebViewCore getWebViewCore() { 7586 return mWebViewCore; 7587 } 7588 7589 private boolean canTextScroll(int directionX, int directionY) { 7590 int scrollX = getTextScrollX(); 7591 int scrollY = getTextScrollY(); 7592 int maxScrollX = getMaxTextScrollX(); 7593 int maxScrollY = getMaxTextScrollY(); 7594 boolean canScrollX = (directionX > 0) 7595 ? (scrollX < maxScrollX) 7596 : (scrollX > 0); 7597 boolean canScrollY = (directionY > 0) 7598 ? (scrollY < maxScrollY) 7599 : (scrollY > 0); 7600 return canScrollX || canScrollY; 7601 } 7602 7603 private int getTextScrollX() { 7604 return -mEditTextContent.left; 7605 } 7606 7607 private int getTextScrollY() { 7608 return -mEditTextContent.top; 7609 } 7610 7611 private int getMaxTextScrollX() { 7612 return Math.max(0, mEditTextContent.width() - mEditTextBounds.width()); 7613 } 7614 7615 private int getMaxTextScrollY() { 7616 return Math.max(0, mEditTextContent.height() - mEditTextBounds.height()); 7617 } 7618 7619 /** 7620 * Used only by TouchEventQueue to store pending touch events. 7621 */ 7622 private static class QueuedTouch { 7623 long mSequence; 7624 MotionEvent mEvent; // Optional 7625 TouchEventData mTed; // Optional 7626 7627 QueuedTouch mNext; 7628 7629 public QueuedTouch set(TouchEventData ted) { 7630 mSequence = ted.mSequence; 7631 mTed = ted; 7632 mEvent = null; 7633 mNext = null; 7634 return this; 7635 } 7636 7637 public QueuedTouch set(MotionEvent ev, long sequence) { 7638 mEvent = MotionEvent.obtain(ev); 7639 mSequence = sequence; 7640 mTed = null; 7641 mNext = null; 7642 return this; 7643 } 7644 7645 public QueuedTouch add(QueuedTouch other) { 7646 if (other.mSequence < mSequence) { 7647 other.mNext = this; 7648 return other; 7649 } 7650 7651 QueuedTouch insertAt = this; 7652 while (insertAt.mNext != null && insertAt.mNext.mSequence < other.mSequence) { 7653 insertAt = insertAt.mNext; 7654 } 7655 other.mNext = insertAt.mNext; 7656 insertAt.mNext = other; 7657 return this; 7658 } 7659 } 7660 7661 /** 7662 * WebView handles touch events asynchronously since some events must be passed to WebKit 7663 * for potentially slower processing. TouchEventQueue serializes touch events regardless 7664 * of which path they take to ensure that no events are ever processed out of order 7665 * by WebView. 7666 */ 7667 private class TouchEventQueue { 7668 private long mNextTouchSequence = Long.MIN_VALUE + 1; 7669 private long mLastHandledTouchSequence = Long.MIN_VALUE; 7670 private long mIgnoreUntilSequence = Long.MIN_VALUE + 1; 7671 7672 // Events waiting to be processed. 7673 private QueuedTouch mTouchEventQueue; 7674 7675 // Known events that are waiting on a response before being enqueued. 7676 private QueuedTouch mPreQueue; 7677 7678 // Pool of QueuedTouch objects saved for later use. 7679 private QueuedTouch mQueuedTouchRecycleBin; 7680 private int mQueuedTouchRecycleCount; 7681 7682 private long mLastEventTime = Long.MAX_VALUE; 7683 private static final int MAX_RECYCLED_QUEUED_TOUCH = 15; 7684 7685 // milliseconds until we abandon hope of getting all of a previous gesture 7686 private static final int QUEUED_GESTURE_TIMEOUT = 1000; 7687 7688 private QueuedTouch obtainQueuedTouch() { 7689 if (mQueuedTouchRecycleBin != null) { 7690 QueuedTouch result = mQueuedTouchRecycleBin; 7691 mQueuedTouchRecycleBin = result.mNext; 7692 mQueuedTouchRecycleCount--; 7693 return result; 7694 } 7695 return new QueuedTouch(); 7696 } 7697 7698 /** 7699 * Allow events with any currently missing sequence numbers to be skipped in processing. 7700 */ 7701 public void ignoreCurrentlyMissingEvents() { 7702 mIgnoreUntilSequence = mNextTouchSequence; 7703 7704 // Run any events we have available and complete, pre-queued or otherwise. 7705 runQueuedAndPreQueuedEvents(); 7706 } 7707 7708 private void runQueuedAndPreQueuedEvents() { 7709 QueuedTouch qd = mPreQueue; 7710 boolean fromPreQueue = true; 7711 while (qd != null && qd.mSequence == mLastHandledTouchSequence + 1) { 7712 handleQueuedTouch(qd); 7713 QueuedTouch recycleMe = qd; 7714 if (fromPreQueue) { 7715 mPreQueue = qd.mNext; 7716 } else { 7717 mTouchEventQueue = qd.mNext; 7718 } 7719 recycleQueuedTouch(recycleMe); 7720 mLastHandledTouchSequence++; 7721 7722 long nextPre = mPreQueue != null ? mPreQueue.mSequence : Long.MAX_VALUE; 7723 long nextQueued = mTouchEventQueue != null ? 7724 mTouchEventQueue.mSequence : Long.MAX_VALUE; 7725 fromPreQueue = nextPre < nextQueued; 7726 qd = fromPreQueue ? mPreQueue : mTouchEventQueue; 7727 } 7728 } 7729 7730 /** 7731 * Add a TouchEventData to the pre-queue. 7732 * 7733 * An event in the pre-queue is an event that we know about that 7734 * has been sent to webkit, but that we haven't received back and 7735 * enqueued into the normal touch queue yet. If webkit ever times 7736 * out and we need to ignore currently missing events, we'll run 7737 * events from the pre-queue to patch the holes. 7738 * 7739 * @param ted TouchEventData to pre-queue 7740 */ 7741 public void preQueueTouchEventData(TouchEventData ted) { 7742 QueuedTouch newTouch = obtainQueuedTouch().set(ted); 7743 if (mPreQueue == null) { 7744 mPreQueue = newTouch; 7745 } else { 7746 QueuedTouch insertionPoint = mPreQueue; 7747 while (insertionPoint.mNext != null && 7748 insertionPoint.mNext.mSequence < newTouch.mSequence) { 7749 insertionPoint = insertionPoint.mNext; 7750 } 7751 newTouch.mNext = insertionPoint.mNext; 7752 insertionPoint.mNext = newTouch; 7753 } 7754 } 7755 7756 private void recycleQueuedTouch(QueuedTouch qd) { 7757 if (mQueuedTouchRecycleCount < MAX_RECYCLED_QUEUED_TOUCH) { 7758 qd.mNext = mQueuedTouchRecycleBin; 7759 mQueuedTouchRecycleBin = qd; 7760 mQueuedTouchRecycleCount++; 7761 } 7762 } 7763 7764 /** 7765 * Reset the touch event queue. This will dump any pending events 7766 * and reset the sequence numbering. 7767 */ 7768 public void reset() { 7769 mNextTouchSequence = Long.MIN_VALUE + 1; 7770 mLastHandledTouchSequence = Long.MIN_VALUE; 7771 mIgnoreUntilSequence = Long.MIN_VALUE + 1; 7772 while (mTouchEventQueue != null) { 7773 QueuedTouch recycleMe = mTouchEventQueue; 7774 mTouchEventQueue = mTouchEventQueue.mNext; 7775 recycleQueuedTouch(recycleMe); 7776 } 7777 while (mPreQueue != null) { 7778 QueuedTouch recycleMe = mPreQueue; 7779 mPreQueue = mPreQueue.mNext; 7780 recycleQueuedTouch(recycleMe); 7781 } 7782 } 7783 7784 /** 7785 * Return the next valid sequence number for tagging incoming touch events. 7786 * @return The next touch event sequence number 7787 */ 7788 public long nextTouchSequence() { 7789 return mNextTouchSequence++; 7790 } 7791 7792 /** 7793 * Enqueue a touch event in the form of TouchEventData. 7794 * The sequence number will be read from the mSequence field of the argument. 7795 * 7796 * If the touch event's sequence number is the next in line to be processed, it will 7797 * be handled before this method returns. Any subsequent events that have already 7798 * been queued will also be processed in their proper order. 7799 * 7800 * @param ted Touch data to be processed in order. 7801 * @return true if the event was processed before returning, false if it was just enqueued. 7802 */ 7803 public boolean enqueueTouchEvent(TouchEventData ted) { 7804 // Remove from the pre-queue if present 7805 QueuedTouch preQueue = mPreQueue; 7806 if (preQueue != null) { 7807 // On exiting this block, preQueue is set to the pre-queued QueuedTouch object 7808 // if it was present in the pre-queue, and removed from the pre-queue itself. 7809 if (preQueue.mSequence == ted.mSequence) { 7810 mPreQueue = preQueue.mNext; 7811 } else { 7812 QueuedTouch prev = preQueue; 7813 preQueue = null; 7814 while (prev.mNext != null) { 7815 if (prev.mNext.mSequence == ted.mSequence) { 7816 preQueue = prev.mNext; 7817 prev.mNext = preQueue.mNext; 7818 break; 7819 } else { 7820 prev = prev.mNext; 7821 } 7822 } 7823 } 7824 } 7825 7826 if (ted.mSequence < mLastHandledTouchSequence) { 7827 // Stale event and we already moved on; drop it. (Should not be common.) 7828 Log.w(LOGTAG, "Stale touch event " + MotionEvent.actionToString(ted.mAction) + 7829 " received from webcore; ignoring"); 7830 return false; 7831 } 7832 7833 if (dropStaleGestures(ted.mMotionEvent, ted.mSequence)) { 7834 return false; 7835 } 7836 7837 // dropStaleGestures above might have fast-forwarded us to 7838 // an event we have already. 7839 runNextQueuedEvents(); 7840 7841 if (mLastHandledTouchSequence + 1 == ted.mSequence) { 7842 if (preQueue != null) { 7843 recycleQueuedTouch(preQueue); 7844 preQueue = null; 7845 } 7846 handleQueuedTouchEventData(ted); 7847 7848 mLastHandledTouchSequence++; 7849 7850 // Do we have any more? Run them if so. 7851 runNextQueuedEvents(); 7852 } else { 7853 // Reuse the pre-queued object if we had it. 7854 QueuedTouch qd = preQueue != null ? preQueue : obtainQueuedTouch().set(ted); 7855 mTouchEventQueue = mTouchEventQueue == null ? qd : mTouchEventQueue.add(qd); 7856 } 7857 return true; 7858 } 7859 7860 /** 7861 * Enqueue a touch event in the form of a MotionEvent from the framework. 7862 * 7863 * If the touch event's sequence number is the next in line to be processed, it will 7864 * be handled before this method returns. Any subsequent events that have already 7865 * been queued will also be processed in their proper order. 7866 * 7867 * @param ev MotionEvent to be processed in order 7868 */ 7869 public void enqueueTouchEvent(MotionEvent ev) { 7870 final long sequence = nextTouchSequence(); 7871 7872 if (dropStaleGestures(ev, sequence)) { 7873 return; 7874 } 7875 7876 // dropStaleGestures above might have fast-forwarded us to 7877 // an event we have already. 7878 runNextQueuedEvents(); 7879 7880 if (mLastHandledTouchSequence + 1 == sequence) { 7881 handleQueuedMotionEvent(ev); 7882 7883 mLastHandledTouchSequence++; 7884 7885 // Do we have any more? Run them if so. 7886 runNextQueuedEvents(); 7887 } else { 7888 QueuedTouch qd = obtainQueuedTouch().set(ev, sequence); 7889 mTouchEventQueue = mTouchEventQueue == null ? qd : mTouchEventQueue.add(qd); 7890 } 7891 } 7892 7893 private void runNextQueuedEvents() { 7894 QueuedTouch qd = mTouchEventQueue; 7895 while (qd != null && qd.mSequence == mLastHandledTouchSequence + 1) { 7896 handleQueuedTouch(qd); 7897 QueuedTouch recycleMe = qd; 7898 qd = qd.mNext; 7899 recycleQueuedTouch(recycleMe); 7900 mLastHandledTouchSequence++; 7901 } 7902 mTouchEventQueue = qd; 7903 } 7904 7905 private boolean dropStaleGestures(MotionEvent ev, long sequence) { 7906 if (ev != null && ev.getAction() == MotionEvent.ACTION_MOVE && !mConfirmMove) { 7907 // This is to make sure that we don't attempt to process a tap 7908 // or long press when webkit takes too long to get back to us. 7909 // The movement will be properly confirmed when we process the 7910 // enqueued event later. 7911 final int dx = Math.round(ev.getX()) - mLastTouchX; 7912 final int dy = Math.round(ev.getY()) - mLastTouchY; 7913 if (dx * dx + dy * dy > mTouchSlopSquare) { 7914 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 7915 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 7916 } 7917 } 7918 7919 if (mTouchEventQueue == null) { 7920 return sequence <= mLastHandledTouchSequence; 7921 } 7922 7923 // If we have a new down event and it's been a while since the last event 7924 // we saw, catch up as best we can and keep going. 7925 if (ev != null && ev.getAction() == MotionEvent.ACTION_DOWN) { 7926 long eventTime = ev.getEventTime(); 7927 long lastHandledEventTime = mLastEventTime; 7928 if (eventTime > lastHandledEventTime + QUEUED_GESTURE_TIMEOUT) { 7929 Log.w(LOGTAG, "Got ACTION_DOWN but still waiting on stale event. " + 7930 "Catching up."); 7931 runQueuedAndPreQueuedEvents(); 7932 7933 // Drop leftovers that we truly don't have. 7934 QueuedTouch qd = mTouchEventQueue; 7935 while (qd != null && qd.mSequence < sequence) { 7936 QueuedTouch recycleMe = qd; 7937 qd = qd.mNext; 7938 recycleQueuedTouch(recycleMe); 7939 } 7940 mTouchEventQueue = qd; 7941 mLastHandledTouchSequence = sequence - 1; 7942 } 7943 } 7944 7945 if (mIgnoreUntilSequence - 1 > mLastHandledTouchSequence) { 7946 QueuedTouch qd = mTouchEventQueue; 7947 while (qd != null && qd.mSequence < mIgnoreUntilSequence) { 7948 QueuedTouch recycleMe = qd; 7949 qd = qd.mNext; 7950 recycleQueuedTouch(recycleMe); 7951 } 7952 mTouchEventQueue = qd; 7953 mLastHandledTouchSequence = mIgnoreUntilSequence - 1; 7954 } 7955 7956 if (mPreQueue != null) { 7957 // Drop stale prequeued events 7958 QueuedTouch qd = mPreQueue; 7959 while (qd != null && qd.mSequence < mIgnoreUntilSequence) { 7960 QueuedTouch recycleMe = qd; 7961 qd = qd.mNext; 7962 recycleQueuedTouch(recycleMe); 7963 } 7964 mPreQueue = qd; 7965 } 7966 7967 return sequence <= mLastHandledTouchSequence; 7968 } 7969 7970 private void handleQueuedTouch(QueuedTouch qt) { 7971 if (qt.mTed != null) { 7972 handleQueuedTouchEventData(qt.mTed); 7973 } else { 7974 handleQueuedMotionEvent(qt.mEvent); 7975 qt.mEvent.recycle(); 7976 } 7977 } 7978 7979 private void handleQueuedMotionEvent(MotionEvent ev) { 7980 mLastEventTime = ev.getEventTime(); 7981 int action = ev.getActionMasked(); 7982 if (ev.getPointerCount() > 1) { // Multi-touch 7983 handleMultiTouchInWebView(ev); 7984 } else { 7985 final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); 7986 if (detector != null && mPreventDefault != PREVENT_DEFAULT_YES) { 7987 // ScaleGestureDetector needs a consistent event stream to operate properly. 7988 // It won't take any action with fewer than two pointers, but it needs to 7989 // update internal bookkeeping state. 7990 detector.onTouchEvent(ev); 7991 } 7992 7993 handleTouchEventCommon(ev, action, Math.round(ev.getX()), Math.round(ev.getY())); 7994 } 7995 } 7996 7997 private void handleQueuedTouchEventData(TouchEventData ted) { 7998 if (ted.mMotionEvent != null) { 7999 mLastEventTime = ted.mMotionEvent.getEventTime(); 8000 } 8001 if (!ted.mReprocess) { 8002 if (ted.mAction == MotionEvent.ACTION_DOWN 8003 && mPreventDefault == PREVENT_DEFAULT_MAYBE_YES) { 8004 // if prevent default is called from WebCore, UI 8005 // will not handle the rest of the touch events any 8006 // more. 8007 mPreventDefault = ted.mNativeResult ? PREVENT_DEFAULT_YES 8008 : PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN; 8009 } else if (ted.mAction == MotionEvent.ACTION_MOVE 8010 && mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN) { 8011 // the return for the first ACTION_MOVE will decide 8012 // whether UI will handle touch or not. Currently no 8013 // support for alternating prevent default 8014 mPreventDefault = ted.mNativeResult ? PREVENT_DEFAULT_YES 8015 : PREVENT_DEFAULT_NO; 8016 } 8017 if (mPreventDefault == PREVENT_DEFAULT_YES) { 8018 mTouchHighlightRegion.setEmpty(); 8019 } 8020 } else { 8021 if (ted.mPoints.length > 1) { // multi-touch 8022 if (!ted.mNativeResult && mPreventDefault != PREVENT_DEFAULT_YES) { 8023 mPreventDefault = PREVENT_DEFAULT_NO; 8024 handleMultiTouchInWebView(ted.mMotionEvent); 8025 } else { 8026 mPreventDefault = PREVENT_DEFAULT_YES; 8027 } 8028 return; 8029 } 8030 8031 // prevent default is not called in WebCore, so the 8032 // message needs to be reprocessed in UI 8033 if (!ted.mNativeResult) { 8034 // Following is for single touch. 8035 switch (ted.mAction) { 8036 case MotionEvent.ACTION_DOWN: 8037 mLastDeferTouchX = ted.mPointsInView[0].x; 8038 mLastDeferTouchY = ted.mPointsInView[0].y; 8039 mDeferTouchMode = TOUCH_INIT_MODE; 8040 break; 8041 case MotionEvent.ACTION_MOVE: { 8042 // no snapping in defer process 8043 int x = ted.mPointsInView[0].x; 8044 int y = ted.mPointsInView[0].y; 8045 8046 if (mDeferTouchMode != TOUCH_DRAG_MODE) { 8047 mDeferTouchMode = TOUCH_DRAG_MODE; 8048 mLastDeferTouchX = x; 8049 mLastDeferTouchY = y; 8050 startScrollingLayer(x, y); 8051 startDrag(); 8052 } 8053 int deltaX = pinLocX((int) (getScrollX() 8054 + mLastDeferTouchX - x)) 8055 - getScrollX(); 8056 int deltaY = pinLocY((int) (getScrollY() 8057 + mLastDeferTouchY - y)) 8058 - getScrollY(); 8059 doDrag(deltaX, deltaY); 8060 if (deltaX != 0) mLastDeferTouchX = x; 8061 if (deltaY != 0) mLastDeferTouchY = y; 8062 break; 8063 } 8064 case MotionEvent.ACTION_UP: 8065 case MotionEvent.ACTION_CANCEL: 8066 if (mDeferTouchMode == TOUCH_DRAG_MODE) { 8067 // no fling in defer process 8068 mScroller.springBack(getScrollX(), getScrollY(), 0, 8069 computeMaxScrollX(), 0, 8070 computeMaxScrollY()); 8071 invalidate(); 8072 WebViewCore.resumePriority(); 8073 WebViewCore.resumeUpdatePicture(mWebViewCore); 8074 } 8075 mDeferTouchMode = TOUCH_DONE_MODE; 8076 break; 8077 case WebViewCore.ACTION_DOUBLETAP: 8078 // doDoubleTap() needs mLastTouchX/Y as anchor 8079 mLastDeferTouchX = ted.mPointsInView[0].x; 8080 mLastDeferTouchY = ted.mPointsInView[0].y; 8081 mZoomManager.handleDoubleTap(mLastTouchX, mLastTouchY); 8082 mDeferTouchMode = TOUCH_DONE_MODE; 8083 break; 8084 case WebViewCore.ACTION_LONGPRESS: 8085 HitTestResult hitTest = getHitTestResult(); 8086 if (hitTest != null && hitTest.getType() 8087 != HitTestResult.UNKNOWN_TYPE) { 8088 performLongClick(); 8089 } 8090 mDeferTouchMode = TOUCH_DONE_MODE; 8091 break; 8092 } 8093 } 8094 } 8095 } 8096 } 8097 8098 //------------------------------------------------------------------------- 8099 // Methods can be called from a separate thread, like WebViewCore 8100 // If it needs to call the View system, it has to send message. 8101 //------------------------------------------------------------------------- 8102 8103 /** 8104 * General handler to receive message coming from webkit thread 8105 */ 8106 class PrivateHandler extends Handler { 8107 @Override 8108 public void handleMessage(Message msg) { 8109 // exclude INVAL_RECT_MSG_ID since it is frequently output 8110 if (DebugFlags.WEB_VIEW && msg.what != INVAL_RECT_MSG_ID) { 8111 if (msg.what >= FIRST_PRIVATE_MSG_ID 8112 && msg.what <= LAST_PRIVATE_MSG_ID) { 8113 Log.v(LOGTAG, HandlerPrivateDebugString[msg.what 8114 - FIRST_PRIVATE_MSG_ID]); 8115 } else if (msg.what >= FIRST_PACKAGE_MSG_ID 8116 && msg.what <= LAST_PACKAGE_MSG_ID) { 8117 Log.v(LOGTAG, HandlerPackageDebugString[msg.what 8118 - FIRST_PACKAGE_MSG_ID]); 8119 } else { 8120 Log.v(LOGTAG, Integer.toString(msg.what)); 8121 } 8122 } 8123 if (mWebViewCore == null) { 8124 // after WebView's destroy() is called, skip handling messages. 8125 return; 8126 } 8127 if (mBlockWebkitViewMessages 8128 && msg.what != WEBCORE_INITIALIZED_MSG_ID) { 8129 // Blocking messages from webkit 8130 return; 8131 } 8132 switch (msg.what) { 8133 case REMEMBER_PASSWORD: { 8134 mDatabase.setUsernamePassword( 8135 msg.getData().getString("host"), 8136 msg.getData().getString("username"), 8137 msg.getData().getString("password")); 8138 ((Message) msg.obj).sendToTarget(); 8139 break; 8140 } 8141 case NEVER_REMEMBER_PASSWORD: { 8142 mDatabase.setUsernamePassword( 8143 msg.getData().getString("host"), null, null); 8144 ((Message) msg.obj).sendToTarget(); 8145 break; 8146 } 8147 case PREVENT_DEFAULT_TIMEOUT: { 8148 // if timeout happens, cancel it so that it won't block UI 8149 // to continue handling touch events 8150 if ((msg.arg1 == MotionEvent.ACTION_DOWN 8151 && mPreventDefault == PREVENT_DEFAULT_MAYBE_YES) 8152 || (msg.arg1 == MotionEvent.ACTION_MOVE 8153 && mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN)) { 8154 cancelWebCoreTouchEvent( 8155 viewToContentX(mLastTouchX + getScrollX()), 8156 viewToContentY(mLastTouchY + getScrollY()), 8157 true); 8158 } 8159 break; 8160 } 8161 case SCROLL_SELECT_TEXT: { 8162 if (mAutoScrollX == 0 && mAutoScrollY == 0) { 8163 mSentAutoScrollMessage = false; 8164 break; 8165 } 8166 if (mCurrentScrollingLayerId == 0) { 8167 pinScrollBy(mAutoScrollX, mAutoScrollY, true, 0); 8168 } else { 8169 scrollLayerTo(mScrollingLayerRect.left + mAutoScrollX, 8170 mScrollingLayerRect.top + mAutoScrollY); 8171 } 8172 sendEmptyMessageDelayed( 8173 SCROLL_SELECT_TEXT, SELECT_SCROLL_INTERVAL); 8174 break; 8175 } 8176 case SWITCH_TO_SHORTPRESS: { 8177 if (mTouchMode == TOUCH_INIT_MODE) { 8178 mTouchMode = TOUCH_SHORTPRESS_MODE; 8179 } else if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 8180 mTouchMode = TOUCH_DONE_MODE; 8181 } 8182 break; 8183 } 8184 case SWITCH_TO_LONGPRESS: { 8185 removeTouchHighlight(); 8186 if (inFullScreenMode() || mDeferTouchProcess) { 8187 TouchEventData ted = new TouchEventData(); 8188 ted.mAction = WebViewCore.ACTION_LONGPRESS; 8189 ted.mIds = new int[1]; 8190 ted.mIds[0] = 0; 8191 ted.mPoints = new Point[1]; 8192 ted.mPoints[0] = new Point(viewToContentX(mLastTouchX + getScrollX()), 8193 viewToContentY(mLastTouchY + getScrollY())); 8194 ted.mPointsInView = new Point[1]; 8195 ted.mPointsInView[0] = new Point(mLastTouchX, mLastTouchY); 8196 // metaState for long press is tricky. Should it be the 8197 // state when the press started or when the press was 8198 // released? Or some intermediary key state? For 8199 // simplicity for now, we don't set it. 8200 ted.mMetaState = 0; 8201 ted.mReprocess = mDeferTouchProcess; 8202 ted.mNativeLayer = nativeScrollableLayer( 8203 ted.mPoints[0].x, ted.mPoints[0].y, 8204 ted.mNativeLayerRect, null); 8205 ted.mSequence = mTouchEventQueue.nextTouchSequence(); 8206 mTouchEventQueue.preQueueTouchEventData(ted); 8207 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 8208 } else if (mPreventDefault != PREVENT_DEFAULT_YES) { 8209 mTouchMode = TOUCH_DONE_MODE; 8210 performLongClick(); 8211 } 8212 break; 8213 } 8214 case RELEASE_SINGLE_TAP: { 8215 doShortPress(); 8216 break; 8217 } 8218 case SCROLL_TO_MSG_ID: { 8219 // arg1 = animate, arg2 = onlyIfImeIsShowing 8220 // obj = Point(x, y) 8221 if (msg.arg2 == 1) { 8222 // This scroll is intended to bring the textfield into 8223 // view, but is only necessary if the IME is showing 8224 InputMethodManager imm = InputMethodManager.peekInstance(); 8225 if (imm == null || !imm.isAcceptingText() 8226 || !imm.isActive(mWebView)) { 8227 break; 8228 } 8229 } 8230 final Point p = (Point) msg.obj; 8231 if (msg.arg1 == 1) { 8232 spawnContentScrollTo(p.x, p.y); 8233 } else { 8234 setContentScrollTo(p.x, p.y); 8235 } 8236 break; 8237 } 8238 case UPDATE_ZOOM_RANGE: { 8239 WebViewCore.ViewState viewState = (WebViewCore.ViewState) msg.obj; 8240 // mScrollX contains the new minPrefWidth 8241 mZoomManager.updateZoomRange(viewState, getViewWidth(), viewState.mScrollX); 8242 break; 8243 } 8244 case UPDATE_ZOOM_DENSITY: { 8245 final float density = (Float) msg.obj; 8246 mZoomManager.updateDefaultZoomDensity(density); 8247 break; 8248 } 8249 case REPLACE_BASE_CONTENT: { 8250 nativeReplaceBaseContent(msg.arg1); 8251 break; 8252 } 8253 case NEW_PICTURE_MSG_ID: { 8254 // called for new content 8255 final WebViewCore.DrawData draw = (WebViewCore.DrawData) msg.obj; 8256 setNewPicture(draw, true); 8257 break; 8258 } 8259 case WEBCORE_INITIALIZED_MSG_ID: 8260 // nativeCreate sets mNativeClass to a non-zero value 8261 String drawableDir = BrowserFrame.getRawResFilename( 8262 BrowserFrame.DRAWABLEDIR, mContext); 8263 WindowManager windowManager = 8264 (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); 8265 Display display = windowManager.getDefaultDisplay(); 8266 nativeCreate(msg.arg1, drawableDir, 8267 ActivityManager.isHighEndGfx(display)); 8268 if (mDelaySetPicture != null) { 8269 setNewPicture(mDelaySetPicture, true); 8270 mDelaySetPicture = null; 8271 } 8272 if (mIsPaused) { 8273 nativeSetPauseDrawing(mNativeClass, true); 8274 } 8275 break; 8276 case UPDATE_TEXTFIELD_TEXT_MSG_ID: 8277 // Make sure that the textfield is currently focused 8278 // and representing the same node as the pointer. 8279 if (msg.arg2 == mTextGeneration) { 8280 String text = (String) msg.obj; 8281 if (null == text) { 8282 text = ""; 8283 } 8284 if (mInputConnection != null && 8285 mFieldPointer == msg.arg1) { 8286 mInputConnection.setTextAndKeepSelection(text); 8287 } 8288 } 8289 break; 8290 case REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID: 8291 displaySoftKeyboard(true); 8292 // fall through to UPDATE_TEXT_SELECTION_MSG_ID 8293 case UPDATE_TEXT_SELECTION_MSG_ID: 8294 updateTextSelectionFromMessage(msg.arg1, msg.arg2, 8295 (WebViewCore.TextSelectionData) msg.obj); 8296 break; 8297 case FORM_DID_BLUR: 8298 // TODO: Figure out if this is needed for something (b/6111763) 8299 break; 8300 case TAKE_FOCUS: 8301 int direction = msg.arg1; 8302 View focusSearch = mWebView.focusSearch(direction); 8303 if (focusSearch != null && focusSearch != mWebView) { 8304 focusSearch.requestFocus(); 8305 } 8306 break; 8307 case CLEAR_TEXT_ENTRY: 8308 hideSoftKeyboard(); 8309 break; 8310 case INVAL_RECT_MSG_ID: { 8311 Rect r = (Rect)msg.obj; 8312 if (r == null) { 8313 invalidate(); 8314 } else { 8315 // we need to scale r from content into view coords, 8316 // which viewInvalidate() does for us 8317 viewInvalidate(r.left, r.top, r.right, r.bottom); 8318 } 8319 break; 8320 } 8321 case REQUEST_FORM_DATA: 8322 if (mFieldPointer == msg.arg1) { 8323 ArrayAdapter<String> adapter = (ArrayAdapter<String>)msg.obj; 8324 mAutoCompletePopup.setAdapter(adapter); 8325 } 8326 break; 8327 8328 case LONG_PRESS_CENTER: 8329 // as this is shared by keydown and trackballdown, reset all 8330 // the states 8331 mGotCenterDown = false; 8332 mTrackballDown = false; 8333 performLongClick(); 8334 break; 8335 8336 case WEBCORE_NEED_TOUCH_EVENTS: 8337 mForwardTouchEvents = (msg.arg1 != 0); 8338 break; 8339 8340 case PREVENT_TOUCH_ID: 8341 if (inFullScreenMode()) { 8342 break; 8343 } 8344 TouchEventData ted = (TouchEventData) msg.obj; 8345 8346 if (mTouchEventQueue.enqueueTouchEvent(ted)) { 8347 // WebCore is responding to us; remove pending timeout. 8348 // It will be re-posted when needed. 8349 removeMessages(PREVENT_DEFAULT_TIMEOUT); 8350 } 8351 break; 8352 8353 case REQUEST_KEYBOARD: 8354 if (msg.arg1 == 0) { 8355 hideSoftKeyboard(); 8356 } else { 8357 displaySoftKeyboard(false); 8358 } 8359 break; 8360 8361 case DRAG_HELD_MOTIONLESS: 8362 mHeldMotionless = MOTIONLESS_TRUE; 8363 invalidate(); 8364 // fall through to keep scrollbars awake 8365 8366 case AWAKEN_SCROLL_BARS: 8367 if (mTouchMode == TOUCH_DRAG_MODE 8368 && mHeldMotionless == MOTIONLESS_TRUE) { 8369 mWebViewPrivate.awakenScrollBars(ViewConfiguration 8370 .getScrollDefaultDelay(), false); 8371 mPrivateHandler.sendMessageDelayed(mPrivateHandler 8372 .obtainMessage(AWAKEN_SCROLL_BARS), 8373 ViewConfiguration.getScrollDefaultDelay()); 8374 } 8375 break; 8376 8377 case SCREEN_ON: 8378 mWebView.setKeepScreenOn(msg.arg1 == 1); 8379 break; 8380 8381 case ENTER_FULLSCREEN_VIDEO: 8382 int layerId = msg.arg1; 8383 8384 String url = (String) msg.obj; 8385 if (mHTML5VideoViewProxy != null) { 8386 mHTML5VideoViewProxy.enterFullScreenVideo(layerId, url); 8387 } 8388 break; 8389 8390 case EXIT_FULLSCREEN_VIDEO: 8391 if (mHTML5VideoViewProxy != null) { 8392 mHTML5VideoViewProxy.exitFullScreenVideo(); 8393 } 8394 break; 8395 8396 case SHOW_FULLSCREEN: { 8397 View view = (View) msg.obj; 8398 int orientation = msg.arg1; 8399 int npp = msg.arg2; 8400 8401 if (inFullScreenMode()) { 8402 Log.w(LOGTAG, "Should not have another full screen."); 8403 dismissFullScreenMode(); 8404 } 8405 mFullScreenHolder = new PluginFullScreenHolder(WebViewClassic.this, orientation, npp); 8406 mFullScreenHolder.setContentView(view); 8407 mFullScreenHolder.show(); 8408 invalidate(); 8409 8410 break; 8411 } 8412 case HIDE_FULLSCREEN: 8413 dismissFullScreenMode(); 8414 break; 8415 8416 case SHOW_RECT_MSG_ID: { 8417 WebViewCore.ShowRectData data = (WebViewCore.ShowRectData) msg.obj; 8418 int x = getScrollX(); 8419 int left = contentToViewX(data.mLeft); 8420 int width = contentToViewDimension(data.mWidth); 8421 int maxWidth = contentToViewDimension(data.mContentWidth); 8422 int viewWidth = getViewWidth(); 8423 if (width < viewWidth) { 8424 // center align 8425 x += left + width / 2 - getScrollX() - viewWidth / 2; 8426 } else { 8427 x += (int) (left + data.mXPercentInDoc * width 8428 - getScrollX() - data.mXPercentInView * viewWidth); 8429 } 8430 if (DebugFlags.WEB_VIEW) { 8431 Log.v(LOGTAG, "showRectMsg=(left=" + left + ",width=" + 8432 width + ",maxWidth=" + maxWidth + 8433 ",viewWidth=" + viewWidth + ",x=" 8434 + x + ",xPercentInDoc=" + data.mXPercentInDoc + 8435 ",xPercentInView=" + data.mXPercentInView+ ")"); 8436 } 8437 // use the passing content width to cap x as the current 8438 // mContentWidth may not be updated yet 8439 x = Math.max(0, 8440 (Math.min(maxWidth, x + viewWidth)) - viewWidth); 8441 int top = contentToViewY(data.mTop); 8442 int height = contentToViewDimension(data.mHeight); 8443 int maxHeight = contentToViewDimension(data.mContentHeight); 8444 int viewHeight = getViewHeight(); 8445 int y = (int) (top + data.mYPercentInDoc * height - 8446 data.mYPercentInView * viewHeight); 8447 if (DebugFlags.WEB_VIEW) { 8448 Log.v(LOGTAG, "showRectMsg=(top=" + top + ",height=" + 8449 height + ",maxHeight=" + maxHeight + 8450 ",viewHeight=" + viewHeight + ",y=" 8451 + y + ",yPercentInDoc=" + data.mYPercentInDoc + 8452 ",yPercentInView=" + data.mYPercentInView+ ")"); 8453 } 8454 // use the passing content height to cap y as the current 8455 // mContentHeight may not be updated yet 8456 y = Math.max(0, 8457 (Math.min(maxHeight, y + viewHeight) - viewHeight)); 8458 // We need to take into account the visible title height 8459 // when scrolling since y is an absolute view position. 8460 y = Math.max(0, y - getVisibleTitleHeightImpl()); 8461 mWebView.scrollTo(x, y); 8462 } 8463 break; 8464 8465 case CENTER_FIT_RECT: 8466 centerFitRect((Rect)msg.obj); 8467 break; 8468 8469 case SET_SCROLLBAR_MODES: 8470 mHorizontalScrollBarMode = msg.arg1; 8471 mVerticalScrollBarMode = msg.arg2; 8472 break; 8473 8474 case SELECTION_STRING_CHANGED: 8475 if (mAccessibilityInjector != null) { 8476 String selectionString = (String) msg.obj; 8477 mAccessibilityInjector.onSelectionStringChange(selectionString); 8478 } 8479 break; 8480 8481 case FOCUS_NODE_CHANGED: 8482 mIsEditingText = (msg.arg1 == mFieldPointer); 8483 if (mAutoCompletePopup != null && !mIsEditingText) { 8484 mAutoCompletePopup.clearAdapter(); 8485 } 8486 // fall through to HIT_TEST_RESULT 8487 case HIT_TEST_RESULT: 8488 WebKitHitTest hit = (WebKitHitTest) msg.obj; 8489 mFocusedNode = hit; 8490 setTouchHighlightRects(hit); 8491 setHitTestResult(hit); 8492 break; 8493 8494 case SAVE_WEBARCHIVE_FINISHED: 8495 SaveWebArchiveMessage saveMessage = (SaveWebArchiveMessage)msg.obj; 8496 if (saveMessage.mCallback != null) { 8497 saveMessage.mCallback.onReceiveValue(saveMessage.mResultFile); 8498 } 8499 break; 8500 8501 case SET_AUTOFILLABLE: 8502 mAutoFillData = (WebViewCore.AutoFillData) msg.obj; 8503 if (mInputConnection != null) { 8504 mInputConnection.setAutoFillable(mAutoFillData.getQueryId()); 8505 mAutoCompletePopup.setAutoFillQueryId(mAutoFillData.getQueryId()); 8506 } 8507 break; 8508 8509 case AUTOFILL_COMPLETE: 8510 if (mAutoCompletePopup != null) { 8511 ArrayList<String> pastEntries = new ArrayList<String>(); 8512 mAutoCompletePopup.setAdapter(new ArrayAdapter<String>( 8513 mContext, 8514 com.android.internal.R.layout.web_text_view_dropdown, 8515 pastEntries)); 8516 } 8517 break; 8518 8519 case COPY_TO_CLIPBOARD: 8520 copyToClipboard((String) msg.obj); 8521 break; 8522 8523 case INIT_EDIT_FIELD: 8524 if (mInputConnection != null) { 8525 TextFieldInitData initData = (TextFieldInitData) msg.obj; 8526 mTextGeneration = 0; 8527 mFieldPointer = initData.mFieldPointer; 8528 mInputConnection.initEditorInfo(initData); 8529 mInputConnection.setTextAndKeepSelection(initData.mText); 8530 mEditTextBounds.set(initData.mNodeBounds); 8531 mEditTextLayerId = initData.mNodeLayerId; 8532 nativeMapLayerRect(mNativeClass, mEditTextLayerId, 8533 mEditTextBounds); 8534 mEditTextContent.set(initData.mContentRect); 8535 relocateAutoCompletePopup(); 8536 } 8537 break; 8538 8539 case REPLACE_TEXT:{ 8540 String text = (String)msg.obj; 8541 int start = msg.arg1; 8542 int end = msg.arg2; 8543 int cursorPosition = start + text.length(); 8544 replaceTextfieldText(start, end, text, 8545 cursorPosition, cursorPosition); 8546 break; 8547 } 8548 8549 case UPDATE_MATCH_COUNT: { 8550 WebViewCore.FindAllRequest request = (WebViewCore.FindAllRequest)msg.obj; 8551 if (request == null) { 8552 if (mFindCallback != null) { 8553 mFindCallback.updateMatchCount(0, 0, true); 8554 } 8555 } else if (request == mFindRequest) { 8556 int matchCount, matchIndex; 8557 synchronized (mFindRequest) { 8558 matchCount = request.mMatchCount; 8559 matchIndex = request.mMatchIndex; 8560 } 8561 if (mFindCallback != null) { 8562 mFindCallback.updateMatchCount(matchIndex, matchCount, false); 8563 } 8564 if (mFindListener != null) { 8565 mFindListener.onFindResultReceived(matchIndex, matchCount, true); 8566 } 8567 } 8568 break; 8569 } 8570 8571 case CLEAR_CARET_HANDLE: 8572 selectionDone(); 8573 break; 8574 8575 case KEY_PRESS: 8576 sendBatchableInputMessage(EventHub.KEY_PRESS, msg.arg1, 0, null); 8577 break; 8578 8579 case RELOCATE_AUTO_COMPLETE_POPUP: 8580 relocateAutoCompletePopup(); 8581 break; 8582 8583 case AUTOFILL_FORM: 8584 mWebViewCore.sendMessage(EventHub.AUTOFILL_FORM, 8585 msg.arg1, /* unused */0); 8586 break; 8587 8588 case ANIMATE_TEXT_SCROLL: 8589 computeEditTextScroll(); 8590 break; 8591 8592 case EDIT_TEXT_SIZE_CHANGED: 8593 if (msg.arg1 == mFieldPointer) { 8594 mEditTextContent.set((Rect)msg.obj); 8595 } 8596 break; 8597 8598 case SHOW_CARET_HANDLE: 8599 if (!mSelectingText && mIsEditingText && mIsCaretSelection) { 8600 setupWebkitSelect(); 8601 resetCaretTimer(); 8602 showPasteWindow(); 8603 } 8604 break; 8605 8606 default: 8607 super.handleMessage(msg); 8608 break; 8609 } 8610 } 8611 } 8612 8613 private void setHitTestTypeFromUrl(String url) { 8614 String substr = null; 8615 if (url.startsWith(SCHEME_GEO)) { 8616 mInitialHitTestResult.setType(HitTestResult.GEO_TYPE); 8617 substr = url.substring(SCHEME_GEO.length()); 8618 } else if (url.startsWith(SCHEME_TEL)) { 8619 mInitialHitTestResult.setType(HitTestResult.PHONE_TYPE); 8620 substr = url.substring(SCHEME_TEL.length()); 8621 } else if (url.startsWith(SCHEME_MAILTO)) { 8622 mInitialHitTestResult.setType(HitTestResult.EMAIL_TYPE); 8623 substr = url.substring(SCHEME_MAILTO.length()); 8624 } else { 8625 mInitialHitTestResult.setType(HitTestResult.SRC_ANCHOR_TYPE); 8626 mInitialHitTestResult.setExtra(url); 8627 return; 8628 } 8629 try { 8630 mInitialHitTestResult.setExtra(URLDecoder.decode(substr, "UTF-8")); 8631 } catch (Throwable e) { 8632 Log.w(LOGTAG, "Failed to decode URL! " + substr, e); 8633 mInitialHitTestResult.setType(HitTestResult.UNKNOWN_TYPE); 8634 } 8635 } 8636 8637 private void setHitTestResult(WebKitHitTest hit) { 8638 if (hit == null) { 8639 mInitialHitTestResult = null; 8640 return; 8641 } 8642 mInitialHitTestResult = new HitTestResult(); 8643 if (hit.mLinkUrl != null) { 8644 setHitTestTypeFromUrl(hit.mLinkUrl); 8645 if (hit.mImageUrl != null 8646 && mInitialHitTestResult.getType() == HitTestResult.SRC_ANCHOR_TYPE) { 8647 mInitialHitTestResult.setType(HitTestResult.SRC_IMAGE_ANCHOR_TYPE); 8648 mInitialHitTestResult.setExtra(hit.mImageUrl); 8649 } 8650 } else if (hit.mImageUrl != null) { 8651 mInitialHitTestResult.setType(HitTestResult.IMAGE_TYPE); 8652 mInitialHitTestResult.setExtra(hit.mImageUrl); 8653 } else if (hit.mEditable) { 8654 mInitialHitTestResult.setType(HitTestResult.EDIT_TEXT_TYPE); 8655 } else if (hit.mIntentUrl != null) { 8656 setHitTestTypeFromUrl(hit.mIntentUrl); 8657 } 8658 } 8659 8660 private boolean shouldDrawHighlightRect() { 8661 if (mFocusedNode == null || mInitialHitTestResult == null) { 8662 return false; 8663 } 8664 if (mTouchHighlightRegion.isEmpty()) { 8665 return false; 8666 } 8667 if (mFocusedNode.mHasFocus && !mWebView.isInTouchMode()) { 8668 return mDrawCursorRing && !mFocusedNode.mEditable; 8669 } 8670 if (mFocusedNode.mHasFocus && mFocusedNode.mEditable) { 8671 return false; 8672 } 8673 long delay = System.currentTimeMillis() - mTouchHighlightRequested; 8674 if (delay < ViewConfiguration.getTapTimeout()) { 8675 Rect r = mTouchHighlightRegion.getBounds(); 8676 mWebView.postInvalidateDelayed(delay, r.left, r.top, r.right, r.bottom); 8677 return false; 8678 } 8679 return true; 8680 } 8681 8682 8683 private FocusTransitionDrawable mFocusTransition = null; 8684 static class FocusTransitionDrawable extends Drawable { 8685 Region mPreviousRegion; 8686 Region mNewRegion; 8687 float mProgress = 0; 8688 WebViewClassic mWebView; 8689 Paint mPaint; 8690 int mMaxAlpha; 8691 Point mTranslate; 8692 8693 public FocusTransitionDrawable(WebViewClassic view) { 8694 mWebView = view; 8695 mPaint = new Paint(mWebView.mTouchHightlightPaint); 8696 mMaxAlpha = mPaint.getAlpha(); 8697 } 8698 8699 @Override 8700 public void setColorFilter(ColorFilter cf) { 8701 } 8702 8703 @Override 8704 public void setAlpha(int alpha) { 8705 } 8706 8707 @Override 8708 public int getOpacity() { 8709 return 0; 8710 } 8711 8712 public void setProgress(float p) { 8713 mProgress = p; 8714 if (mWebView.mFocusTransition == this) { 8715 if (mProgress == 1f) 8716 mWebView.mFocusTransition = null; 8717 mWebView.invalidate(); 8718 } 8719 } 8720 8721 public float getProgress() { 8722 return mProgress; 8723 } 8724 8725 @Override 8726 public void draw(Canvas canvas) { 8727 if (mTranslate == null) { 8728 Rect bounds = mPreviousRegion.getBounds(); 8729 Point from = new Point(bounds.centerX(), bounds.centerY()); 8730 mNewRegion.getBounds(bounds); 8731 Point to = new Point(bounds.centerX(), bounds.centerY()); 8732 mTranslate = new Point(from.x - to.x, from.y - to.y); 8733 } 8734 int alpha = (int) (mProgress * mMaxAlpha); 8735 RegionIterator iter = new RegionIterator(mPreviousRegion); 8736 Rect r = new Rect(); 8737 mPaint.setAlpha(mMaxAlpha - alpha); 8738 float tx = mTranslate.x * mProgress; 8739 float ty = mTranslate.y * mProgress; 8740 int save = canvas.save(Canvas.MATRIX_SAVE_FLAG); 8741 canvas.translate(-tx, -ty); 8742 while (iter.next(r)) { 8743 canvas.drawRect(r, mPaint); 8744 } 8745 canvas.restoreToCount(save); 8746 iter = new RegionIterator(mNewRegion); 8747 r = new Rect(); 8748 mPaint.setAlpha(alpha); 8749 save = canvas.save(Canvas.MATRIX_SAVE_FLAG); 8750 tx = mTranslate.x - tx; 8751 ty = mTranslate.y - ty; 8752 canvas.translate(tx, ty); 8753 while (iter.next(r)) { 8754 canvas.drawRect(r, mPaint); 8755 } 8756 canvas.restoreToCount(save); 8757 } 8758 }; 8759 8760 private boolean shouldAnimateTo(WebKitHitTest hit) { 8761 // TODO: Don't be annoying or throw out the animation entirely 8762 return false; 8763 } 8764 8765 private void setTouchHighlightRects(WebKitHitTest hit) { 8766 FocusTransitionDrawable transition = null; 8767 if (shouldAnimateTo(hit)) { 8768 transition = new FocusTransitionDrawable(this); 8769 } 8770 Rect[] rects = hit != null ? hit.mTouchRects : null; 8771 if (!mTouchHighlightRegion.isEmpty()) { 8772 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 8773 if (transition != null) { 8774 transition.mPreviousRegion = new Region(mTouchHighlightRegion); 8775 } 8776 mTouchHighlightRegion.setEmpty(); 8777 } 8778 if (rects != null) { 8779 mTouchHightlightPaint.setColor(hit.mTapHighlightColor); 8780 for (Rect rect : rects) { 8781 Rect viewRect = contentToViewRect(rect); 8782 // some sites, like stories in nytimes.com, set 8783 // mouse event handler in the top div. It is not 8784 // user friendly to highlight the div if it covers 8785 // more than half of the screen. 8786 if (viewRect.width() < getWidth() >> 1 8787 || viewRect.height() < getHeight() >> 1) { 8788 mTouchHighlightRegion.union(viewRect); 8789 } else { 8790 Log.w(LOGTAG, "Skip the huge selection rect:" 8791 + viewRect); 8792 } 8793 } 8794 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 8795 if (transition != null && transition.mPreviousRegion != null) { 8796 transition.mNewRegion = new Region(mTouchHighlightRegion); 8797 mFocusTransition = transition; 8798 ObjectAnimator animator = ObjectAnimator.ofFloat( 8799 mFocusTransition, "progress", 1f); 8800 animator.start(); 8801 } 8802 } 8803 } 8804 8805 // Interface to allow the profiled WebView to hook the page swap notifications. 8806 public interface PageSwapDelegate { 8807 void onPageSwapOccurred(boolean notifyAnimationStarted); 8808 } 8809 8810 long mLastSwapTime; 8811 double mAverageSwapFps; 8812 8813 /** Called by JNI when pages are swapped (only occurs with hardware 8814 * acceleration) */ 8815 protected void pageSwapCallback(boolean notifyAnimationStarted) { 8816 if (DebugFlags.MEASURE_PAGE_SWAP_FPS) { 8817 long now = System.currentTimeMillis(); 8818 long diff = now - mLastSwapTime; 8819 mAverageSwapFps = ((1000.0 / diff) + mAverageSwapFps) / 2; 8820 Log.d(LOGTAG, "page swap fps: " + mAverageSwapFps); 8821 mLastSwapTime = now; 8822 } 8823 mWebViewCore.resumeWebKitDraw(); 8824 if (notifyAnimationStarted) { 8825 mWebViewCore.sendMessage(EventHub.NOTIFY_ANIMATION_STARTED); 8826 } 8827 if (mWebView instanceof PageSwapDelegate) { 8828 // This provides a hook for ProfiledWebView to observe the tile page swaps. 8829 ((PageSwapDelegate) mWebView).onPageSwapOccurred(notifyAnimationStarted); 8830 } 8831 } 8832 8833 void setNewPicture(final WebViewCore.DrawData draw, boolean updateBaseLayer) { 8834 if (mNativeClass == 0) { 8835 if (mDelaySetPicture != null) { 8836 throw new IllegalStateException("Tried to setNewPicture with" 8837 + " a delay picture already set! (memory leak)"); 8838 } 8839 // Not initialized yet, delay set 8840 mDelaySetPicture = draw; 8841 return; 8842 } 8843 WebViewCore.ViewState viewState = draw.mViewState; 8844 boolean isPictureAfterFirstLayout = viewState != null; 8845 8846 if (updateBaseLayer) { 8847 setBaseLayer(draw.mBaseLayer, draw.mInvalRegion, 8848 getSettings().getShowVisualIndicator(), 8849 isPictureAfterFirstLayout); 8850 } 8851 final Point viewSize = draw.mViewSize; 8852 // We update the layout (i.e. request a layout from the 8853 // view system) if the last view size that we sent to 8854 // WebCore matches the view size of the picture we just 8855 // received in the fixed dimension. 8856 final boolean updateLayout = viewSize.x == mLastWidthSent 8857 && viewSize.y == mLastHeightSent; 8858 // Don't send scroll event for picture coming from webkit, 8859 // since the new picture may cause a scroll event to override 8860 // the saved history scroll position. 8861 mSendScrollEvent = false; 8862 recordNewContentSize(draw.mContentSize.x, 8863 draw.mContentSize.y, updateLayout); 8864 if (isPictureAfterFirstLayout) { 8865 // Reset the last sent data here since dealing with new page. 8866 mLastWidthSent = 0; 8867 mZoomManager.onFirstLayout(draw); 8868 int scrollX = viewState.mShouldStartScrolledRight 8869 ? getContentWidth() : viewState.mScrollX; 8870 int scrollY = viewState.mScrollY; 8871 setContentScrollTo(scrollX, scrollY); 8872 if (!mDrawHistory) { 8873 // As we are on a new page, hide the keyboard 8874 hideSoftKeyboard(); 8875 } 8876 } 8877 mSendScrollEvent = true; 8878 8879 if (DebugFlags.WEB_VIEW) { 8880 Rect b = draw.mInvalRegion.getBounds(); 8881 Log.v(LOGTAG, "NEW_PICTURE_MSG_ID {" + 8882 b.left+","+b.top+","+b.right+","+b.bottom+"}"); 8883 } 8884 Rect invalBounds = draw.mInvalRegion.getBounds(); 8885 if (!invalBounds.isEmpty()) { 8886 invalidateContentRect(invalBounds); 8887 } else { 8888 mWebView.invalidate(); 8889 } 8890 8891 if (mPictureListener != null) { 8892 mPictureListener.onNewPicture(getWebView(), capturePicture()); 8893 } 8894 8895 // update the zoom information based on the new picture 8896 mZoomManager.onNewPicture(draw); 8897 8898 if (isPictureAfterFirstLayout) { 8899 mViewManager.postReadyToDrawAll(); 8900 } 8901 } 8902 8903 /** 8904 * Used when receiving messages for REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID 8905 * and UPDATE_TEXT_SELECTION_MSG_ID. 8906 */ 8907 private void updateTextSelectionFromMessage(int nodePointer, 8908 int textGeneration, WebViewCore.TextSelectionData data) { 8909 if (textGeneration == mTextGeneration) { 8910 if (mInputConnection != null && mFieldPointer == nodePointer) { 8911 mInputConnection.setSelection(data.mStart, data.mEnd); 8912 } 8913 } 8914 nativeSetTextSelection(mNativeClass, data.mSelectTextPtr); 8915 8916 if (data.mSelectTextPtr != 0 && 8917 (data.mStart != data.mEnd || 8918 (mFieldPointer == nodePointer && mFieldPointer != 0))) { 8919 mIsCaretSelection = (data.mStart == data.mEnd); 8920 if (mIsCaretSelection && 8921 (mInputConnection == null || 8922 mInputConnection.getEditable().length() == 0)) { 8923 // There's no text, don't show caret handle. 8924 selectionDone(); 8925 } else { 8926 if (!mSelectingText) { 8927 setupWebkitSelect(); 8928 } else if (!mSelectionStarted) { 8929 syncSelectionCursors(); 8930 } else { 8931 adjustSelectionCursors(); 8932 } 8933 if (mIsCaretSelection) { 8934 resetCaretTimer(); 8935 } 8936 } 8937 } else { 8938 selectionDone(); 8939 } 8940 invalidate(); 8941 } 8942 8943 private void computeEditTextScroll() { 8944 if (mEditTextScroller.computeScrollOffset()) { 8945 scrollEditText(mEditTextScroller.getCurrX(), 8946 mEditTextScroller.getCurrY()); 8947 } 8948 } 8949 8950 private void scrollEditText(int scrollX, int scrollY) { 8951 // Scrollable edit text. Scroll it. 8952 float maxScrollX = getMaxTextScrollX(); 8953 float scrollPercentX = ((float)scrollX)/maxScrollX; 8954 mEditTextContent.offsetTo(-scrollX, -scrollY); 8955 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SCROLL_TEXT_INPUT, 0, 8956 scrollY, (Float)scrollPercentX); 8957 mPrivateHandler.sendEmptyMessageDelayed(ANIMATE_TEXT_SCROLL, 8958 TEXT_SCROLL_ANIMATION_DELAY_MS); 8959 } 8960 8961 private void beginTextBatch() { 8962 mIsBatchingTextChanges = true; 8963 } 8964 8965 private void commitTextBatch() { 8966 if (mWebViewCore != null) { 8967 mWebViewCore.sendMessages(mBatchedTextChanges); 8968 } 8969 mBatchedTextChanges.clear(); 8970 mIsBatchingTextChanges = false; 8971 } 8972 8973 private void sendBatchableInputMessage(int what, int arg1, int arg2, 8974 Object obj) { 8975 if (mWebViewCore == null) { 8976 return; 8977 } 8978 Message message = Message.obtain(null, what, arg1, arg2, obj); 8979 if (mIsBatchingTextChanges) { 8980 mBatchedTextChanges.add(message); 8981 } else { 8982 mWebViewCore.sendMessage(message); 8983 } 8984 } 8985 8986 // Class used to use a dropdown for a <select> element 8987 private class InvokeListBox implements Runnable { 8988 // Whether the listbox allows multiple selection. 8989 private boolean mMultiple; 8990 // Passed in to a list with multiple selection to tell 8991 // which items are selected. 8992 private int[] mSelectedArray; 8993 // Passed in to a list with single selection to tell 8994 // where the initial selection is. 8995 private int mSelection; 8996 8997 private Container[] mContainers; 8998 8999 // Need these to provide stable ids to my ArrayAdapter, 9000 // which normally does not have stable ids. (Bug 1250098) 9001 private class Container extends Object { 9002 /** 9003 * Possible values for mEnabled. Keep in sync with OptionStatus in 9004 * WebViewCore.cpp 9005 */ 9006 final static int OPTGROUP = -1; 9007 final static int OPTION_DISABLED = 0; 9008 final static int OPTION_ENABLED = 1; 9009 9010 String mString; 9011 int mEnabled; 9012 int mId; 9013 9014 @Override 9015 public String toString() { 9016 return mString; 9017 } 9018 } 9019 9020 /** 9021 * Subclass ArrayAdapter so we can disable OptionGroupLabels, 9022 * and allow filtering. 9023 */ 9024 private class MyArrayListAdapter extends ArrayAdapter<Container> { 9025 public MyArrayListAdapter() { 9026 super(WebViewClassic.this.mContext, 9027 mMultiple ? com.android.internal.R.layout.select_dialog_multichoice : 9028 com.android.internal.R.layout.webview_select_singlechoice, 9029 mContainers); 9030 } 9031 9032 @Override 9033 public View getView(int position, View convertView, 9034 ViewGroup parent) { 9035 // Always pass in null so that we will get a new CheckedTextView 9036 // Otherwise, an item which was previously used as an <optgroup> 9037 // element (i.e. has no check), could get used as an <option> 9038 // element, which needs a checkbox/radio, but it would not have 9039 // one. 9040 convertView = super.getView(position, null, parent); 9041 Container c = item(position); 9042 if (c != null && Container.OPTION_ENABLED != c.mEnabled) { 9043 // ListView does not draw dividers between disabled and 9044 // enabled elements. Use a LinearLayout to provide dividers 9045 LinearLayout layout = new LinearLayout(mContext); 9046 layout.setOrientation(LinearLayout.VERTICAL); 9047 if (position > 0) { 9048 View dividerTop = new View(mContext); 9049 dividerTop.setBackgroundResource( 9050 android.R.drawable.divider_horizontal_bright); 9051 layout.addView(dividerTop); 9052 } 9053 9054 if (Container.OPTGROUP == c.mEnabled) { 9055 // Currently select_dialog_multichoice uses CheckedTextViews. 9056 // If that changes, the class cast will no longer be valid. 9057 if (mMultiple) { 9058 Assert.assertTrue(convertView instanceof CheckedTextView); 9059 ((CheckedTextView) convertView).setCheckMarkDrawable(null); 9060 } 9061 } else { 9062 // c.mEnabled == Container.OPTION_DISABLED 9063 // Draw the disabled element in a disabled state. 9064 convertView.setEnabled(false); 9065 } 9066 9067 layout.addView(convertView); 9068 if (position < getCount() - 1) { 9069 View dividerBottom = new View(mContext); 9070 dividerBottom.setBackgroundResource( 9071 android.R.drawable.divider_horizontal_bright); 9072 layout.addView(dividerBottom); 9073 } 9074 return layout; 9075 } 9076 return convertView; 9077 } 9078 9079 @Override 9080 public boolean hasStableIds() { 9081 // AdapterView's onChanged method uses this to determine whether 9082 // to restore the old state. Return false so that the old (out 9083 // of date) state does not replace the new, valid state. 9084 return false; 9085 } 9086 9087 private Container item(int position) { 9088 if (position < 0 || position >= getCount()) { 9089 return null; 9090 } 9091 return getItem(position); 9092 } 9093 9094 @Override 9095 public long getItemId(int position) { 9096 Container item = item(position); 9097 if (item == null) { 9098 return -1; 9099 } 9100 return item.mId; 9101 } 9102 9103 @Override 9104 public boolean areAllItemsEnabled() { 9105 return false; 9106 } 9107 9108 @Override 9109 public boolean isEnabled(int position) { 9110 Container item = item(position); 9111 if (item == null) { 9112 return false; 9113 } 9114 return Container.OPTION_ENABLED == item.mEnabled; 9115 } 9116 } 9117 9118 private InvokeListBox(String[] array, int[] enabled, int[] selected) { 9119 mMultiple = true; 9120 mSelectedArray = selected; 9121 9122 int length = array.length; 9123 mContainers = new Container[length]; 9124 for (int i = 0; i < length; i++) { 9125 mContainers[i] = new Container(); 9126 mContainers[i].mString = array[i]; 9127 mContainers[i].mEnabled = enabled[i]; 9128 mContainers[i].mId = i; 9129 } 9130 } 9131 9132 private InvokeListBox(String[] array, int[] enabled, int selection) { 9133 mSelection = selection; 9134 mMultiple = false; 9135 9136 int length = array.length; 9137 mContainers = new Container[length]; 9138 for (int i = 0; i < length; i++) { 9139 mContainers[i] = new Container(); 9140 mContainers[i].mString = array[i]; 9141 mContainers[i].mEnabled = enabled[i]; 9142 mContainers[i].mId = i; 9143 } 9144 } 9145 9146 /* 9147 * Whenever the data set changes due to filtering, this class ensures 9148 * that the checked item remains checked. 9149 */ 9150 private class SingleDataSetObserver extends DataSetObserver { 9151 private long mCheckedId; 9152 private ListView mListView; 9153 private Adapter mAdapter; 9154 9155 /* 9156 * Create a new observer. 9157 * @param id The ID of the item to keep checked. 9158 * @param l ListView for getting and clearing the checked states 9159 * @param a Adapter for getting the IDs 9160 */ 9161 public SingleDataSetObserver(long id, ListView l, Adapter a) { 9162 mCheckedId = id; 9163 mListView = l; 9164 mAdapter = a; 9165 } 9166 9167 @Override 9168 public void onChanged() { 9169 // The filter may have changed which item is checked. Find the 9170 // item that the ListView thinks is checked. 9171 int position = mListView.getCheckedItemPosition(); 9172 long id = mAdapter.getItemId(position); 9173 if (mCheckedId != id) { 9174 // Clear the ListView's idea of the checked item, since 9175 // it is incorrect 9176 mListView.clearChoices(); 9177 // Search for mCheckedId. If it is in the filtered list, 9178 // mark it as checked 9179 int count = mAdapter.getCount(); 9180 for (int i = 0; i < count; i++) { 9181 if (mAdapter.getItemId(i) == mCheckedId) { 9182 mListView.setItemChecked(i, true); 9183 break; 9184 } 9185 } 9186 } 9187 } 9188 } 9189 9190 @Override 9191 public void run() { 9192 final ListView listView = (ListView) LayoutInflater.from(mContext) 9193 .inflate(com.android.internal.R.layout.select_dialog, null); 9194 final MyArrayListAdapter adapter = new MyArrayListAdapter(); 9195 AlertDialog.Builder b = new AlertDialog.Builder(mContext) 9196 .setView(listView).setCancelable(true) 9197 .setInverseBackgroundForced(true); 9198 9199 if (mMultiple) { 9200 b.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { 9201 @Override 9202 public void onClick(DialogInterface dialog, int which) { 9203 mWebViewCore.sendMessage( 9204 EventHub.LISTBOX_CHOICES, 9205 adapter.getCount(), 0, 9206 listView.getCheckedItemPositions()); 9207 }}); 9208 b.setNegativeButton(android.R.string.cancel, 9209 new DialogInterface.OnClickListener() { 9210 @Override 9211 public void onClick(DialogInterface dialog, int which) { 9212 mWebViewCore.sendMessage( 9213 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 9214 }}); 9215 } 9216 mListBoxDialog = b.create(); 9217 listView.setAdapter(adapter); 9218 listView.setFocusableInTouchMode(true); 9219 // There is a bug (1250103) where the checks in a ListView with 9220 // multiple items selected are associated with the positions, not 9221 // the ids, so the items do not properly retain their checks when 9222 // filtered. Do not allow filtering on multiple lists until 9223 // that bug is fixed. 9224 9225 listView.setTextFilterEnabled(!mMultiple); 9226 if (mMultiple) { 9227 listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 9228 int length = mSelectedArray.length; 9229 for (int i = 0; i < length; i++) { 9230 listView.setItemChecked(mSelectedArray[i], true); 9231 } 9232 } else { 9233 listView.setOnItemClickListener(new OnItemClickListener() { 9234 @Override 9235 public void onItemClick(AdapterView<?> parent, View v, 9236 int position, long id) { 9237 // Rather than sending the message right away, send it 9238 // after the page regains focus. 9239 mListBoxMessage = Message.obtain(null, 9240 EventHub.SINGLE_LISTBOX_CHOICE, (int) id, 0); 9241 if (mListBoxDialog != null) { 9242 mListBoxDialog.dismiss(); 9243 mListBoxDialog = null; 9244 } 9245 } 9246 }); 9247 if (mSelection != -1) { 9248 listView.setSelection(mSelection); 9249 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 9250 listView.setItemChecked(mSelection, true); 9251 DataSetObserver observer = new SingleDataSetObserver( 9252 adapter.getItemId(mSelection), listView, adapter); 9253 adapter.registerDataSetObserver(observer); 9254 } 9255 } 9256 mListBoxDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { 9257 @Override 9258 public void onCancel(DialogInterface dialog) { 9259 mWebViewCore.sendMessage( 9260 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 9261 mListBoxDialog = null; 9262 } 9263 }); 9264 mListBoxDialog.show(); 9265 } 9266 } 9267 9268 private Message mListBoxMessage; 9269 9270 /* 9271 * Request a dropdown menu for a listbox with multiple selection. 9272 * 9273 * @param array Labels for the listbox. 9274 * @param enabledArray State for each element in the list. See static 9275 * integers in Container class. 9276 * @param selectedArray Which positions are initally selected. 9277 */ 9278 void requestListBox(String[] array, int[] enabledArray, int[] 9279 selectedArray) { 9280 mPrivateHandler.post( 9281 new InvokeListBox(array, enabledArray, selectedArray)); 9282 } 9283 9284 /* 9285 * Request a dropdown menu for a listbox with single selection or a single 9286 * <select> element. 9287 * 9288 * @param array Labels for the listbox. 9289 * @param enabledArray State for each element in the list. See static 9290 * integers in Container class. 9291 * @param selection Which position is initally selected. 9292 */ 9293 void requestListBox(String[] array, int[] enabledArray, int selection) { 9294 mPrivateHandler.post( 9295 new InvokeListBox(array, enabledArray, selection)); 9296 } 9297 9298 private int getScaledMaxXScroll() { 9299 int width; 9300 if (mHeightCanMeasure == false) { 9301 width = getViewWidth() / 4; 9302 } else { 9303 Rect visRect = new Rect(); 9304 calcOurVisibleRect(visRect); 9305 width = visRect.width() / 2; 9306 } 9307 // FIXME the divisor should be retrieved from somewhere 9308 return viewToContentX(width); 9309 } 9310 9311 private int getScaledMaxYScroll() { 9312 int height; 9313 if (mHeightCanMeasure == false) { 9314 height = getViewHeight() / 4; 9315 } else { 9316 Rect visRect = new Rect(); 9317 calcOurVisibleRect(visRect); 9318 height = visRect.height() / 2; 9319 } 9320 // FIXME the divisor should be retrieved from somewhere 9321 // the closest thing today is hard-coded into ScrollView.java 9322 // (from ScrollView.java, line 363) int maxJump = height/2; 9323 return Math.round(height * mZoomManager.getInvScale()); 9324 } 9325 9326 /** 9327 * Called by JNI to invalidate view 9328 */ 9329 private void viewInvalidate() { 9330 invalidate(); 9331 } 9332 9333 /** 9334 * Pass the key directly to the page. This assumes that 9335 * nativePageShouldHandleShiftAndArrows() returned true. 9336 */ 9337 private void letPageHandleNavKey(int keyCode, long time, boolean down, int metaState) { 9338 int keyEventAction; 9339 if (down) { 9340 keyEventAction = KeyEvent.ACTION_DOWN; 9341 } else { 9342 keyEventAction = KeyEvent.ACTION_UP; 9343 } 9344 9345 KeyEvent event = new KeyEvent(time, time, keyEventAction, keyCode, 9346 1, (metaState & KeyEvent.META_SHIFT_ON) 9347 | (metaState & KeyEvent.META_ALT_ON) 9348 | (metaState & KeyEvent.META_SYM_ON) 9349 , KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0); 9350 sendKeyEvent(event); 9351 } 9352 9353 private void sendKeyEvent(KeyEvent event) { 9354 int direction = 0; 9355 switch (event.getKeyCode()) { 9356 case KeyEvent.KEYCODE_DPAD_DOWN: 9357 direction = View.FOCUS_DOWN; 9358 break; 9359 case KeyEvent.KEYCODE_DPAD_UP: 9360 direction = View.FOCUS_UP; 9361 break; 9362 case KeyEvent.KEYCODE_DPAD_LEFT: 9363 direction = View.FOCUS_LEFT; 9364 break; 9365 case KeyEvent.KEYCODE_DPAD_RIGHT: 9366 direction = View.FOCUS_RIGHT; 9367 break; 9368 case KeyEvent.KEYCODE_TAB: 9369 direction = event.isShiftPressed() ? View.FOCUS_BACKWARD : View.FOCUS_FORWARD; 9370 break; 9371 } 9372 if (direction != 0 && mWebView.focusSearch(direction) == null) { 9373 // Can't take focus in that direction 9374 direction = 0; 9375 } 9376 int eventHubAction = EventHub.KEY_UP; 9377 if (event.getAction() == KeyEvent.ACTION_DOWN) { 9378 eventHubAction = EventHub.KEY_DOWN; 9379 int sound = keyCodeToSoundsEffect(event.getKeyCode()); 9380 if (sound != 0) { 9381 mWebView.playSoundEffect(sound); 9382 } 9383 } 9384 sendBatchableInputMessage(eventHubAction, direction, 0, event); 9385 } 9386 9387 /** 9388 * @return Whether accessibility script has been injected. 9389 */ 9390 private boolean accessibilityScriptInjected() { 9391 // TODO: Maybe the injected script should announce its presence in 9392 // the page meta-tag so the nativePageShouldHandleShiftAndArrows 9393 // will check that as one of the conditions it looks for 9394 return mAccessibilityScriptInjected; 9395 } 9396 9397 /** 9398 * See {@link WebView#setBackgroundColor(int)} 9399 */ 9400 @Override 9401 public void setBackgroundColor(int color) { 9402 mBackgroundColor = color; 9403 mWebViewCore.sendMessage(EventHub.SET_BACKGROUND_COLOR, color); 9404 } 9405 9406 /** 9407 * See {@link WebView#debugDump()} 9408 */ 9409 @Override 9410 @Deprecated 9411 public void debugDump() { 9412 } 9413 9414 /** 9415 * Draw the HTML page into the specified canvas. This call ignores any 9416 * view-specific zoom, scroll offset, or other changes. It does not draw 9417 * any view-specific chrome, such as progress or URL bars. 9418 * 9419 * only needs to be accessible to Browser and testing 9420 */ 9421 public void drawPage(Canvas canvas) { 9422 calcOurContentVisibleRectF(mVisibleContentRect); 9423 nativeDraw(canvas, mVisibleContentRect, 0, 0, false); 9424 } 9425 9426 /** 9427 * Enable the communication b/t the webView and VideoViewProxy 9428 * 9429 * only used by the Browser 9430 */ 9431 public void setHTML5VideoViewProxy(HTML5VideoViewProxy proxy) { 9432 mHTML5VideoViewProxy = proxy; 9433 } 9434 9435 /** 9436 * Set the time to wait between passing touches to WebCore. See also the 9437 * TOUCH_SENT_INTERVAL member for further discussion. 9438 * 9439 * This is only used by the DRT test application. 9440 */ 9441 public void setTouchInterval(int interval) { 9442 mCurrentTouchInterval = interval; 9443 } 9444 9445 /** 9446 * Copy text into the clipboard. This is called indirectly from 9447 * WebViewCore. 9448 * @param text The text to put into the clipboard. 9449 */ 9450 private void copyToClipboard(String text) { 9451 ClipboardManager cm = (ClipboardManager)mContext 9452 .getSystemService(Context.CLIPBOARD_SERVICE); 9453 ClipData clip = ClipData.newPlainText(getTitle(), text); 9454 cm.setPrimaryClip(clip); 9455 } 9456 9457 /*package*/ void autoFillForm(int autoFillQueryId) { 9458 mPrivateHandler.obtainMessage(AUTOFILL_FORM, autoFillQueryId, 0) 9459 .sendToTarget(); 9460 } 9461 9462 /* package */ ViewManager getViewManager() { 9463 return mViewManager; 9464 } 9465 9466 /** send content invalidate */ 9467 protected void contentInvalidateAll() { 9468 if (mWebViewCore != null && !mBlockWebkitViewMessages) { 9469 mWebViewCore.sendMessage(EventHub.CONTENT_INVALIDATE_ALL); 9470 } 9471 } 9472 9473 /** discard all textures from tiles. Used in Profiled WebView */ 9474 public void discardAllTextures() { 9475 nativeDiscardAllTextures(); 9476 } 9477 9478 @Override 9479 public void setLayerType(int layerType, Paint paint) { 9480 updateHwAccelerated(); 9481 } 9482 9483 private void updateHwAccelerated() { 9484 if (mNativeClass == 0) { 9485 return; 9486 } 9487 boolean hwAccelerated = false; 9488 if (mWebView.isHardwareAccelerated() 9489 && mWebView.getLayerType() != View.LAYER_TYPE_SOFTWARE) { 9490 hwAccelerated = true; 9491 } 9492 int result = nativeSetHwAccelerated(mNativeClass, hwAccelerated); 9493 if (mWebViewCore == null || mBlockWebkitViewMessages) { 9494 return; 9495 } 9496 if (result == 1) { 9497 // Sync layers 9498 mWebViewCore.layersDraw(); 9499 } 9500 } 9501 9502 /** 9503 * Begin collecting per-tile profiling data 9504 * 9505 * only used by profiling tests 9506 */ 9507 public void tileProfilingStart() { 9508 nativeTileProfilingStart(); 9509 } 9510 /** 9511 * Return per-tile profiling data 9512 * 9513 * only used by profiling tests 9514 */ 9515 public float tileProfilingStop() { 9516 return nativeTileProfilingStop(); 9517 } 9518 9519 /** only used by profiling tests */ 9520 public void tileProfilingClear() { 9521 nativeTileProfilingClear(); 9522 } 9523 /** only used by profiling tests */ 9524 public int tileProfilingNumFrames() { 9525 return nativeTileProfilingNumFrames(); 9526 } 9527 /** only used by profiling tests */ 9528 public int tileProfilingNumTilesInFrame(int frame) { 9529 return nativeTileProfilingNumTilesInFrame(frame); 9530 } 9531 /** only used by profiling tests */ 9532 public int tileProfilingGetInt(int frame, int tile, String key) { 9533 return nativeTileProfilingGetInt(frame, tile, key); 9534 } 9535 /** only used by profiling tests */ 9536 public float tileProfilingGetFloat(int frame, int tile, String key) { 9537 return nativeTileProfilingGetFloat(frame, tile, key); 9538 } 9539 9540 /** 9541 * Checks the focused content for an editable text field. This can be 9542 * text input or ContentEditable. 9543 * @return true if the focused item is an editable text field. 9544 */ 9545 boolean focusCandidateIsEditableText() { 9546 if (mFocusedNode != null) { 9547 return mFocusedNode.mEditable; 9548 } 9549 return false; 9550 } 9551 9552 // Called via JNI 9553 private void postInvalidate() { 9554 mWebView.postInvalidate(); 9555 } 9556 9557 private native void nativeCreate(int ptr, String drawableDir, boolean isHighEndGfx); 9558 private native void nativeDebugDump(); 9559 private native void nativeDestroy(); 9560 9561 /** 9562 * Draw the picture set with a background color and extra. If 9563 * "splitIfNeeded" is true and the return value is not 0, the return value 9564 * MUST be passed to WebViewCore with SPLIT_PICTURE_SET message so that the 9565 * native allocation can be freed. 9566 */ 9567 private native int nativeDraw(Canvas canvas, RectF visibleRect, 9568 int color, int extra, boolean splitIfNeeded); 9569 private native void nativeDumpDisplayTree(String urlOrNull); 9570 private native boolean nativeEvaluateLayersAnimations(int nativeInstance); 9571 private native int nativeGetDrawGLFunction(int nativeInstance, Rect rect, 9572 Rect viewRect, RectF visibleRect, float scale, int extras); 9573 private native void nativeUpdateDrawGLFunction(Rect rect, Rect viewRect, 9574 RectF visibleRect, float scale); 9575 private native String nativeGetSelection(); 9576 private native Rect nativeLayerBounds(int layer); 9577 private native void nativeSetHeightCanMeasure(boolean measure); 9578 private native boolean nativeSetBaseLayer(int nativeInstance, 9579 int layer, Region invalRegion, 9580 boolean showVisualIndicator, boolean isPictureAfterFirstLayout); 9581 private native int nativeGetBaseLayer(); 9582 private native void nativeReplaceBaseContent(int content); 9583 private native void nativeCopyBaseContentToPicture(Picture pict); 9584 private native boolean nativeHasContent(); 9585 private native void nativeStopGL(); 9586 private native void nativeDiscardAllTextures(); 9587 private native void nativeTileProfilingStart(); 9588 private native float nativeTileProfilingStop(); 9589 private native void nativeTileProfilingClear(); 9590 private native int nativeTileProfilingNumFrames(); 9591 private native int nativeTileProfilingNumTilesInFrame(int frame); 9592 private native int nativeTileProfilingGetInt(int frame, int tile, String key); 9593 private native float nativeTileProfilingGetFloat(int frame, int tile, String key); 9594 9595 private native void nativeUseHardwareAccelSkia(boolean enabled); 9596 9597 // Returns a pointer to the scrollable LayerAndroid at the given point. 9598 private native int nativeScrollableLayer(int x, int y, Rect scrollRect, 9599 Rect scrollBounds); 9600 /** 9601 * Scroll the specified layer. 9602 * @param layer Id of the layer to scroll, as determined by nativeScrollableLayer. 9603 * @param newX Destination x position to which to scroll. 9604 * @param newY Destination y position to which to scroll. 9605 * @return True if the layer is successfully scrolled. 9606 */ 9607 private native boolean nativeScrollLayer(int layer, int newX, int newY); 9608 private native void nativeSetIsScrolling(boolean isScrolling); 9609 private native int nativeGetBackgroundColor(); 9610 native boolean nativeSetProperty(String key, String value); 9611 native String nativeGetProperty(String key); 9612 /** 9613 * See {@link ComponentCallbacks2} for the trim levels and descriptions 9614 */ 9615 private static native void nativeOnTrimMemory(int level); 9616 private static native void nativeSetPauseDrawing(int instance, boolean pause); 9617 private static native void nativeSetTextSelection(int instance, int selection); 9618 private static native int nativeGetHandleLayerId(int instance, int handle, 9619 Point cursorLocation, QuadF textQuad); 9620 private static native boolean nativeIsBaseFirst(int instance); 9621 private static native void nativeMapLayerRect(int instance, int layerId, 9622 Rect rect); 9623 // Returns 1 if a layer sync is needed, else 0 9624 private static native int nativeSetHwAccelerated(int instance, boolean hwAccelerated); 9625} 9626