WebViewClassic.java revision 9dd4a6c7a4ed45ce8ffae73ce9ac6dac51943581
1/* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.webkit; 18 19import android.animation.ObjectAnimator; 20import android.annotation.Widget; 21import android.app.ActivityManager; 22import android.app.AlertDialog; 23import android.content.BroadcastReceiver; 24import android.content.ClipData; 25import android.content.ClipboardManager; 26import android.content.ComponentCallbacks2; 27import android.content.Context; 28import android.content.DialogInterface; 29import android.content.DialogInterface.OnCancelListener; 30import android.content.Intent; 31import android.content.IntentFilter; 32import android.content.pm.PackageManager; 33import android.content.res.Configuration; 34import android.database.DataSetObserver; 35import android.graphics.Bitmap; 36import android.graphics.BitmapFactory; 37import android.graphics.BitmapShader; 38import android.graphics.Canvas; 39import android.graphics.Color; 40import android.graphics.ColorFilter; 41import android.graphics.DrawFilter; 42import android.graphics.Paint; 43import android.graphics.PaintFlagsDrawFilter; 44import android.graphics.Picture; 45import android.graphics.Point; 46import android.graphics.PointF; 47import android.graphics.Rect; 48import android.graphics.RectF; 49import android.graphics.Region; 50import android.graphics.RegionIterator; 51import android.graphics.Shader; 52import android.graphics.drawable.Drawable; 53import android.net.Proxy; 54import android.net.ProxyProperties; 55import android.net.Uri; 56import android.net.http.SslCertificate; 57import android.os.AsyncTask; 58import android.os.Bundle; 59import android.os.Handler; 60import android.os.Looper; 61import android.os.Message; 62import android.os.SystemClock; 63import android.provider.Settings; 64import android.security.KeyChain; 65import android.speech.tts.TextToSpeech; 66import android.text.Editable; 67import android.text.InputType; 68import android.text.Selection; 69import android.text.TextUtils; 70import android.util.DisplayMetrics; 71import android.util.EventLog; 72import android.util.Log; 73import android.view.Display; 74import android.view.Gravity; 75import android.view.HapticFeedbackConstants; 76import android.view.HardwareCanvas; 77import android.view.InputDevice; 78import android.view.KeyCharacterMap; 79import android.view.KeyEvent; 80import android.view.LayoutInflater; 81import android.view.MotionEvent; 82import android.view.ScaleGestureDetector; 83import android.view.SoundEffectConstants; 84import android.view.VelocityTracker; 85import android.view.View; 86import android.view.View.MeasureSpec; 87import android.view.ViewConfiguration; 88import android.view.ViewGroup; 89import android.view.ViewParent; 90import android.view.ViewTreeObserver; 91import android.view.WindowManager; 92import android.view.accessibility.AccessibilityEvent; 93import android.view.accessibility.AccessibilityManager; 94import android.view.accessibility.AccessibilityNodeInfo; 95import android.view.inputmethod.BaseInputConnection; 96import android.view.inputmethod.EditorInfo; 97import android.view.inputmethod.InputConnection; 98import android.view.inputmethod.InputMethodManager; 99import android.webkit.WebView.HitTestResult; 100import android.webkit.WebView.PictureListener; 101import android.webkit.WebViewCore.DrawData; 102import android.webkit.WebViewCore.EventHub; 103import android.webkit.WebViewCore.TextFieldInitData; 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 finishComposingText(); 465 } 466 467 public void replaceSelection(CharSequence text) { 468 Editable editable = getEditable(); 469 int selectionStart = Selection.getSelectionStart(editable); 470 int selectionEnd = Selection.getSelectionEnd(editable); 471 text = limitReplaceTextByMaxLength(text, selectionEnd - selectionStart); 472 setNewText(selectionStart, selectionEnd, text); 473 editable.replace(selectionStart, selectionEnd, text); 474 restartInput(); 475 // Move caret to the end of the new text 476 int newCaret = selectionStart + text.length(); 477 setSelection(newCaret, newCaret); 478 } 479 480 @Override 481 public boolean setComposingText(CharSequence text, int newCursorPosition) { 482 Editable editable = getEditable(); 483 int start = getComposingSpanStart(editable); 484 int end = getComposingSpanEnd(editable); 485 if (start < 0 || end < 0) { 486 start = Selection.getSelectionStart(editable); 487 end = Selection.getSelectionEnd(editable); 488 } 489 if (end < start) { 490 int temp = end; 491 end = start; 492 start = temp; 493 } 494 CharSequence limitedText = limitReplaceTextByMaxLength(text, end - start); 495 setNewText(start, end, limitedText); 496 if (limitedText != text) { 497 newCursorPosition -= text.length() - limitedText.length(); 498 } 499 super.setComposingText(limitedText, newCursorPosition); 500 if (limitedText != text) { 501 restartInput(); 502 int lastCaret = start + limitedText.length(); 503 finishComposingText(); 504 setSelection(lastCaret, lastCaret); 505 } 506 return true; 507 } 508 509 @Override 510 public boolean commitText(CharSequence text, int newCursorPosition) { 511 setComposingText(text, newCursorPosition); 512 int cursorPosition = Selection.getSelectionEnd(getEditable()); 513 setComposingRegion(cursorPosition, cursorPosition); 514 return true; 515 } 516 517 @Override 518 public boolean deleteSurroundingText(int leftLength, int rightLength) { 519 Editable editable = getEditable(); 520 int cursorPosition = Selection.getSelectionEnd(editable); 521 int startDelete = Math.max(0, cursorPosition - leftLength); 522 int endDelete = Math.min(editable.length(), 523 cursorPosition + rightLength); 524 setNewText(startDelete, endDelete, ""); 525 return super.deleteSurroundingText(leftLength, rightLength); 526 } 527 528 @Override 529 public boolean performEditorAction(int editorAction) { 530 531 boolean handled = true; 532 switch (editorAction) { 533 case EditorInfo.IME_ACTION_NEXT: 534 mWebView.requestFocus(View.FOCUS_FORWARD); 535 break; 536 case EditorInfo.IME_ACTION_PREVIOUS: 537 mWebView.requestFocus(View.FOCUS_BACKWARD); 538 break; 539 case EditorInfo.IME_ACTION_DONE: 540 WebViewClassic.this.hideSoftKeyboard(); 541 break; 542 case EditorInfo.IME_ACTION_GO: 543 case EditorInfo.IME_ACTION_SEARCH: 544 WebViewClassic.this.hideSoftKeyboard(); 545 String text = getEditable().toString(); 546 passToJavaScript(text, new KeyEvent(KeyEvent.ACTION_DOWN, 547 KeyEvent.KEYCODE_ENTER)); 548 passToJavaScript(text, new KeyEvent(KeyEvent.ACTION_UP, 549 KeyEvent.KEYCODE_ENTER)); 550 break; 551 552 default: 553 handled = super.performEditorAction(editorAction); 554 break; 555 } 556 557 return handled; 558 } 559 560 public void initEditorInfo(WebViewCore.TextFieldInitData initData) { 561 int type = initData.mType; 562 int inputType = InputType.TYPE_CLASS_TEXT 563 | InputType.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT; 564 int imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI 565 | EditorInfo.IME_FLAG_NO_FULLSCREEN; 566 if (!initData.mIsSpellCheckEnabled) { 567 inputType |= InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS; 568 } 569 if (WebTextView.TEXT_AREA != type) { 570 if (initData.mIsTextFieldNext) { 571 imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 572 } 573 if (initData.mIsTextFieldPrev) { 574 imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 575 } 576 } 577 switch (type) { 578 case WebTextView.NORMAL_TEXT_FIELD: 579 imeOptions |= EditorInfo.IME_ACTION_GO; 580 break; 581 case WebTextView.TEXT_AREA: 582 inputType |= InputType.TYPE_TEXT_FLAG_MULTI_LINE 583 | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES 584 | InputType.TYPE_TEXT_FLAG_AUTO_CORRECT; 585 imeOptions |= EditorInfo.IME_ACTION_NONE; 586 break; 587 case WebTextView.PASSWORD: 588 inputType |= EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 589 imeOptions |= EditorInfo.IME_ACTION_GO; 590 break; 591 case WebTextView.SEARCH: 592 imeOptions |= EditorInfo.IME_ACTION_SEARCH; 593 break; 594 case WebTextView.EMAIL: 595 // inputType needs to be overwritten because of the different text variation. 596 inputType = InputType.TYPE_CLASS_TEXT 597 | InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS; 598 imeOptions |= EditorInfo.IME_ACTION_GO; 599 break; 600 case WebTextView.NUMBER: 601 // inputType needs to be overwritten because of the different class. 602 inputType = InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_NORMAL 603 | InputType.TYPE_NUMBER_FLAG_SIGNED | InputType.TYPE_NUMBER_FLAG_DECIMAL; 604 // Number and telephone do not have both a Tab key and an 605 // action, so set the action to NEXT 606 imeOptions |= EditorInfo.IME_ACTION_NEXT; 607 break; 608 case WebTextView.TELEPHONE: 609 // inputType needs to be overwritten because of the different class. 610 inputType = InputType.TYPE_CLASS_PHONE; 611 imeOptions |= EditorInfo.IME_ACTION_NEXT; 612 break; 613 case WebTextView.URL: 614 // TYPE_TEXT_VARIATION_URI prevents Tab key from showing, so 615 // exclude it for now. 616 imeOptions |= EditorInfo.IME_ACTION_GO; 617 inputType |= InputType.TYPE_TEXT_VARIATION_URI; 618 break; 619 default: 620 imeOptions |= EditorInfo.IME_ACTION_GO; 621 break; 622 } 623 mHint = initData.mLabel; 624 mInputType = inputType; 625 mImeOptions = imeOptions; 626 mMaxLength = initData.mMaxLength; 627 mIsAutoCompleteEnabled = initData.mIsAutoCompleteEnabled; 628 mName = initData.mName; 629 mAutoCompletePopup.clearAdapter(); 630 } 631 632 public void setupEditorInfo(EditorInfo outAttrs) { 633 outAttrs.inputType = mInputType; 634 outAttrs.imeOptions = mImeOptions; 635 outAttrs.hintText = mHint; 636 outAttrs.initialCapsMode = getCursorCapsMode(InputType.TYPE_CLASS_TEXT); 637 } 638 639 /** 640 * Sends a text change to webkit indirectly. If it is a single- 641 * character add or delete, it sends it as a key stroke. If it cannot 642 * be represented as a key stroke, it sends it as a field change. 643 * @param start The start offset (inclusive) of the text being changed. 644 * @param end The end offset (exclusive) of the text being changed. 645 * @param text The new text to replace the changed text. 646 */ 647 private void setNewText(int start, int end, CharSequence text) { 648 mIsKeySentByMe = true; 649 Editable editable = getEditable(); 650 CharSequence original = editable.subSequence(start, end); 651 boolean isCharacterAdd = false; 652 boolean isCharacterDelete = false; 653 int textLength = text.length(); 654 int originalLength = original.length(); 655 if (textLength > originalLength) { 656 isCharacterAdd = (textLength == originalLength + 1) 657 && TextUtils.regionMatches(text, 0, original, 0, 658 originalLength); 659 } else if (originalLength > textLength) { 660 isCharacterDelete = (textLength == originalLength - 1) 661 && TextUtils.regionMatches(text, 0, original, 0, 662 textLength); 663 } 664 if (isCharacterAdd) { 665 sendCharacter(text.charAt(textLength - 1)); 666 } else if (isCharacterDelete) { 667 sendKey(KeyEvent.KEYCODE_DEL); 668 } else if ((textLength != originalLength) || 669 !TextUtils.regionMatches(text, 0, original, 0, 670 textLength)) { 671 // Send a message so that key strokes and text replacement 672 // do not come out of order. 673 Message replaceMessage = mPrivateHandler.obtainMessage( 674 REPLACE_TEXT, start, end, text.toString()); 675 mPrivateHandler.sendMessage(replaceMessage); 676 } 677 if (mAutoCompletePopup != null) { 678 StringBuilder newText = new StringBuilder(); 679 newText.append(editable.subSequence(0, start)); 680 newText.append(text); 681 newText.append(editable.subSequence(end, editable.length())); 682 mAutoCompletePopup.setText(newText.toString()); 683 } 684 mIsKeySentByMe = false; 685 } 686 687 /** 688 * Send a single character to the WebView as a key down and up event. 689 * @param c The character to be sent. 690 */ 691 private void sendCharacter(char c) { 692 if (mKeyCharacterMap == null) { 693 mKeyCharacterMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD); 694 } 695 char[] chars = new char[1]; 696 chars[0] = c; 697 KeyEvent[] events = mKeyCharacterMap.getEvents(chars); 698 if (events != null) { 699 for (KeyEvent event : events) { 700 sendKeyEvent(event); 701 } 702 } else { 703 Message msg = mPrivateHandler.obtainMessage(KEY_PRESS, (int) c, 0); 704 mPrivateHandler.sendMessage(msg); 705 } 706 } 707 708 /** 709 * Send a key event for a specific key code, not a standard 710 * unicode character. 711 * @param keyCode The key code to send. 712 */ 713 private void sendKey(int keyCode) { 714 long eventTime = SystemClock.uptimeMillis(); 715 sendKeyEvent(new KeyEvent(eventTime, eventTime, 716 KeyEvent.ACTION_DOWN, keyCode, 0, 0, 717 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 718 KeyEvent.FLAG_SOFT_KEYBOARD)); 719 sendKeyEvent(new KeyEvent(SystemClock.uptimeMillis(), eventTime, 720 KeyEvent.ACTION_UP, keyCode, 0, 0, 721 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 722 KeyEvent.FLAG_SOFT_KEYBOARD)); 723 } 724 725 private CharSequence limitReplaceTextByMaxLength(CharSequence text, 726 int numReplaced) { 727 if (mMaxLength > 0) { 728 Editable editable = getEditable(); 729 int maxReplace = mMaxLength - editable.length() + numReplaced; 730 if (maxReplace < text.length()) { 731 maxReplace = Math.max(maxReplace, 0); 732 // New length is greater than the maximum. trim it down. 733 text = text.subSequence(0, maxReplace); 734 } 735 } 736 return text; 737 } 738 739 private void restartInput() { 740 InputMethodManager imm = InputMethodManager.peekInstance(); 741 if (imm != null) { 742 // Since the text has changed, do not allow the IME to replace the 743 // existing text as though it were a completion. 744 imm.restartInput(mWebView); 745 } 746 } 747 } 748 749 private class PastePopupWindow extends PopupWindow implements View.OnClickListener { 750 private ViewGroup mContentView; 751 private TextView mPasteTextView; 752 753 public PastePopupWindow() { 754 super(mContext, null, 755 com.android.internal.R.attr.textSelectHandleWindowStyle); 756 setClippingEnabled(true); 757 LinearLayout linearLayout = new LinearLayout(mContext); 758 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 759 mContentView = linearLayout; 760 mContentView.setBackgroundResource( 761 com.android.internal.R.drawable.text_edit_paste_window); 762 763 LayoutInflater inflater = (LayoutInflater)mContext. 764 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 765 766 ViewGroup.LayoutParams wrapContent = new ViewGroup.LayoutParams( 767 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 768 769 mPasteTextView = (TextView) inflater.inflate( 770 com.android.internal.R.layout.text_edit_action_popup_text, null); 771 mPasteTextView.setLayoutParams(wrapContent); 772 mContentView.addView(mPasteTextView); 773 mPasteTextView.setText(com.android.internal.R.string.paste); 774 mPasteTextView.setOnClickListener(this); 775 this.setContentView(mContentView); 776 } 777 778 public void show(Point cursorBottom, Point cursorTop, 779 int windowLeft, int windowTop) { 780 measureContent(); 781 782 int width = mContentView.getMeasuredWidth(); 783 int height = mContentView.getMeasuredHeight(); 784 int y = cursorTop.y - height; 785 int x = cursorTop.x - (width / 2); 786 if (y < windowTop) { 787 // There's not enough room vertically, move it below the 788 // handle. 789 ensureSelectionHandles(); 790 y = cursorBottom.y + mSelectHandleCenter.getIntrinsicHeight(); 791 x = cursorBottom.x - (width / 2); 792 } 793 if (x < windowLeft) { 794 x = windowLeft; 795 } 796 if (!isShowing()) { 797 showAtLocation(mWebView, Gravity.NO_GRAVITY, x, y); 798 } 799 update(x, y, width, height); 800 } 801 802 public void hide() { 803 dismiss(); 804 } 805 806 @Override 807 public void onClick(View view) { 808 pasteFromClipboard(); 809 selectionDone(); 810 } 811 812 protected void measureContent() { 813 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 814 mContentView.measure( 815 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 816 View.MeasureSpec.AT_MOST), 817 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 818 View.MeasureSpec.AT_MOST)); 819 } 820 } 821 822 // The listener to capture global layout change event. 823 private InnerGlobalLayoutListener mGlobalLayoutListener = null; 824 825 // The listener to capture scroll event. 826 private InnerScrollChangedListener mScrollChangedListener = null; 827 828 // if AUTO_REDRAW_HACK is true, then the CALL key will toggle redrawing 829 // the screen all-the-time. Good for profiling our drawing code 830 static private final boolean AUTO_REDRAW_HACK = false; 831 832 // The rate at which edit text is scrolled in content pixels per millisecond 833 static private final float TEXT_SCROLL_RATE = 0.01f; 834 835 // The presumed scroll rate for the first scroll of edit text 836 static private final long TEXT_SCROLL_FIRST_SCROLL_MS = 16; 837 838 // true means redraw the screen all-the-time. Only with AUTO_REDRAW_HACK 839 private boolean mAutoRedraw; 840 841 // Reference to the AlertDialog displayed by InvokeListBox. 842 // It's used to dismiss the dialog in destroy if not done before. 843 private AlertDialog mListBoxDialog = null; 844 845 static final String LOGTAG = "webview"; 846 847 private ZoomManager mZoomManager; 848 849 private final Rect mGLRectViewport = new Rect(); 850 private final Rect mViewRectViewport = new Rect(); 851 private final RectF mVisibleContentRect = new RectF(); 852 private boolean mGLViewportEmpty = false; 853 WebViewInputConnection mInputConnection = null; 854 private int mFieldPointer; 855 private PastePopupWindow mPasteWindow; 856 private AutoCompletePopup mAutoCompletePopup; 857 Rect mEditTextContentBounds = new Rect(); 858 Rect mEditTextContent = new Rect(); 859 int mEditTextLayerId; 860 boolean mIsEditingText = false; 861 ArrayList<Message> mBatchedTextChanges = new ArrayList<Message>(); 862 boolean mIsBatchingTextChanges = false; 863 private long mLastEditScroll = 0; 864 865 private static class OnTrimMemoryListener implements ComponentCallbacks2 { 866 private static OnTrimMemoryListener sInstance = null; 867 868 static void init(Context c) { 869 if (sInstance == null) { 870 sInstance = new OnTrimMemoryListener(c.getApplicationContext()); 871 } 872 } 873 874 private OnTrimMemoryListener(Context c) { 875 c.registerComponentCallbacks(this); 876 } 877 878 @Override 879 public void onConfigurationChanged(Configuration newConfig) { 880 // Ignore 881 } 882 883 @Override 884 public void onLowMemory() { 885 // Ignore 886 } 887 888 @Override 889 public void onTrimMemory(int level) { 890 if (DebugFlags.WEB_VIEW) { 891 Log.d("WebView", "onTrimMemory: " + level); 892 } 893 // When framework reset EGL context during high memory pressure, all 894 // the existing GL resources for the html5 video will be destroyed 895 // at native side. 896 // Here we just need to clean up the Surface Texture which is static. 897 if (level >= TRIM_MEMORY_UI_HIDDEN) { 898 HTML5VideoInline.cleanupSurfaceTexture(); 899 } 900 WebViewClassic.nativeOnTrimMemory(level); 901 } 902 903 } 904 905 // A final CallbackProxy shared by WebViewCore and BrowserFrame. 906 private CallbackProxy mCallbackProxy; 907 908 private WebViewDatabase mDatabase; 909 910 // SSL certificate for the main top-level page (if secure) 911 private SslCertificate mCertificate; 912 913 // Native WebView pointer that is 0 until the native object has been 914 // created. 915 private int mNativeClass; 916 // This would be final but it needs to be set to null when the WebView is 917 // destroyed. 918 private WebViewCore mWebViewCore; 919 // Handler for dispatching UI messages. 920 /* package */ final Handler mPrivateHandler = new PrivateHandler(); 921 // Used to ignore changes to webkit text that arrives to the UI side after 922 // more key events. 923 private int mTextGeneration; 924 925 /* package */ void incrementTextGeneration() { mTextGeneration++; } 926 927 // Used by WebViewCore to create child views. 928 /* package */ ViewManager mViewManager; 929 930 // Used to display in full screen mode 931 PluginFullScreenHolder mFullScreenHolder; 932 933 /** 934 * Position of the last touch event in pixels. 935 * Use integer to prevent loss of dragging delta calculation accuracy; 936 * which was done in float and converted to integer, and resulted in gradual 937 * and compounding touch position and view dragging mismatch. 938 */ 939 private int mLastTouchX; 940 private int mLastTouchY; 941 private int mStartTouchX; 942 private int mStartTouchY; 943 private float mAverageAngle; 944 945 /** 946 * Time of the last touch event. 947 */ 948 private long mLastTouchTime; 949 950 /** 951 * Time of the last time sending touch event to WebViewCore 952 */ 953 private long mLastSentTouchTime; 954 955 /** 956 * The minimum elapsed time before sending another ACTION_MOVE event to 957 * WebViewCore. This really should be tuned for each type of the devices. 958 * For example in Google Map api test case, it takes Dream device at least 959 * 150ms to do a full cycle in the WebViewCore by processing a touch event, 960 * triggering the layout and drawing the picture. While the same process 961 * takes 60+ms on the current high speed device. If we make 962 * TOUCH_SENT_INTERVAL too small, there will be multiple touch events sent 963 * to WebViewCore queue and the real layout and draw events will be pushed 964 * to further, which slows down the refresh rate. Choose 50 to favor the 965 * current high speed devices. For Dream like devices, 100 is a better 966 * choice. Maybe make this in the buildspec later. 967 * (Update 12/14/2010: changed to 0 since current device should be able to 968 * handle the raw events and Map team voted to have the raw events too. 969 */ 970 private static final int TOUCH_SENT_INTERVAL = 0; 971 private int mCurrentTouchInterval = TOUCH_SENT_INTERVAL; 972 973 /** 974 * Helper class to get velocity for fling 975 */ 976 VelocityTracker mVelocityTracker; 977 private int mMaximumFling; 978 private float mLastVelocity; 979 private float mLastVelX; 980 private float mLastVelY; 981 982 // The id of the native layer being scrolled. 983 private int mCurrentScrollingLayerId; 984 private Rect mScrollingLayerRect = new Rect(); 985 986 // only trigger accelerated fling if the new velocity is at least 987 // MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION times of the previous velocity 988 private static final float MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION = 0.2f; 989 990 /** 991 * Touch mode 992 * TODO: Some of this is now unnecessary as it is handled by 993 * WebInputTouchDispatcher (such as click, long press, and double tap). 994 */ 995 private int mTouchMode = TOUCH_DONE_MODE; 996 private static final int TOUCH_INIT_MODE = 1; 997 private static final int TOUCH_DRAG_START_MODE = 2; 998 private static final int TOUCH_DRAG_MODE = 3; 999 private static final int TOUCH_SHORTPRESS_START_MODE = 4; 1000 private static final int TOUCH_SHORTPRESS_MODE = 5; 1001 private static final int TOUCH_DOUBLE_TAP_MODE = 6; 1002 private static final int TOUCH_DONE_MODE = 7; 1003 private static final int TOUCH_PINCH_DRAG = 8; 1004 private static final int TOUCH_DRAG_LAYER_MODE = 9; 1005 private static final int TOUCH_DRAG_TEXT_MODE = 10; 1006 1007 // true when the touch movement exceeds the slop 1008 private boolean mConfirmMove; 1009 private boolean mTouchInEditText; 1010 1011 // Whether or not to draw the cursor ring. 1012 private boolean mDrawCursorRing = true; 1013 1014 // true if onPause has been called (and not onResume) 1015 private boolean mIsPaused; 1016 1017 private HitTestResult mInitialHitTestResult; 1018 private WebKitHitTest mFocusedNode; 1019 1020 /** 1021 * Customizable constant 1022 */ 1023 // pre-computed square of ViewConfiguration.getScaledTouchSlop() 1024 private int mTouchSlopSquare; 1025 // pre-computed square of ViewConfiguration.getScaledDoubleTapSlop() 1026 private int mDoubleTapSlopSquare; 1027 // pre-computed density adjusted navigation slop 1028 private int mNavSlop; 1029 // This should be ViewConfiguration.getTapTimeout() 1030 // But system time out is 100ms, which is too short for the browser. 1031 // In the browser, if it switches out of tap too soon, jump tap won't work. 1032 // In addition, a double tap on a trackpad will always have a duration of 1033 // 300ms, so this value must be at least that (otherwise we will timeout the 1034 // first tap and convert it to a long press). 1035 private static final int TAP_TIMEOUT = 300; 1036 // This should be ViewConfiguration.getLongPressTimeout() 1037 // But system time out is 500ms, which is too short for the browser. 1038 // With a short timeout, it's difficult to treat trigger a short press. 1039 private static final int LONG_PRESS_TIMEOUT = 1000; 1040 // needed to avoid flinging after a pause of no movement 1041 private static final int MIN_FLING_TIME = 250; 1042 // draw unfiltered after drag is held without movement 1043 private static final int MOTIONLESS_TIME = 100; 1044 // The amount of content to overlap between two screens when going through 1045 // pages with the space bar, in pixels. 1046 private static final int PAGE_SCROLL_OVERLAP = 24; 1047 1048 /** 1049 * These prevent calling requestLayout if either dimension is fixed. This 1050 * depends on the layout parameters and the measure specs. 1051 */ 1052 boolean mWidthCanMeasure; 1053 boolean mHeightCanMeasure; 1054 1055 // Remember the last dimensions we sent to the native side so we can avoid 1056 // sending the same dimensions more than once. 1057 int mLastWidthSent; 1058 int mLastHeightSent; 1059 // Since view height sent to webkit could be fixed to avoid relayout, this 1060 // value records the last sent actual view height. 1061 int mLastActualHeightSent; 1062 1063 private int mContentWidth; // cache of value from WebViewCore 1064 private int mContentHeight; // cache of value from WebViewCore 1065 1066 // Need to have the separate control for horizontal and vertical scrollbar 1067 // style than the View's single scrollbar style 1068 private boolean mOverlayHorizontalScrollbar = true; 1069 private boolean mOverlayVerticalScrollbar = false; 1070 1071 // our standard speed. this way small distances will be traversed in less 1072 // time than large distances, but we cap the duration, so that very large 1073 // distances won't take too long to get there. 1074 private static final int STD_SPEED = 480; // pixels per second 1075 // time for the longest scroll animation 1076 private static final int MAX_DURATION = 750; // milliseconds 1077 1078 // Used by OverScrollGlow 1079 OverScroller mScroller; 1080 Scroller mEditTextScroller; 1081 1082 private boolean mInOverScrollMode = false; 1083 private static Paint mOverScrollBackground; 1084 private static Paint mOverScrollBorder; 1085 1086 private boolean mWrapContent; 1087 private static final int MOTIONLESS_FALSE = 0; 1088 private static final int MOTIONLESS_PENDING = 1; 1089 private static final int MOTIONLESS_TRUE = 2; 1090 private static final int MOTIONLESS_IGNORE = 3; 1091 private int mHeldMotionless; 1092 1093 // An instance for injecting accessibility in WebViews with disabled 1094 // JavaScript or ones for which no accessibility script exists 1095 private AccessibilityInjector mAccessibilityInjector; 1096 1097 // flag indicating if accessibility script is injected so we 1098 // know to handle Shift and arrows natively first 1099 private boolean mAccessibilityScriptInjected; 1100 1101 1102 /** 1103 * How long the caret handle will last without being touched. 1104 */ 1105 private static final long CARET_HANDLE_STAMINA_MS = 3000; 1106 1107 private Drawable mSelectHandleLeft; 1108 private Drawable mSelectHandleRight; 1109 private Drawable mSelectHandleCenter; 1110 private Point mSelectHandleLeftOffset; 1111 private Point mSelectHandleRightOffset; 1112 private Point mSelectHandleCenterOffset; 1113 private Point mSelectCursorBase = new Point(); 1114 private int mSelectCursorBaseLayerId; 1115 private QuadF mSelectCursorBaseTextQuad = new QuadF(); 1116 private Point mSelectCursorExtent = new Point(); 1117 private int mSelectCursorExtentLayerId; 1118 private QuadF mSelectCursorExtentTextQuad = new QuadF(); 1119 private Point mSelectDraggingCursor; 1120 private Point mSelectDraggingOffset; 1121 private QuadF mSelectDraggingTextQuad; 1122 private boolean mIsCaretSelection; 1123 static final int HANDLE_ID_START = 0; 1124 static final int HANDLE_ID_END = 1; 1125 static final int HANDLE_ID_BASE = 2; 1126 static final int HANDLE_ID_EXTENT = 3; 1127 1128 // the color used to highlight the touch rectangles 1129 static final int HIGHLIGHT_COLOR = 0x6633b5e5; 1130 // the region indicating where the user touched on the screen 1131 private Region mTouchHighlightRegion = new Region(); 1132 // the paint for the touch highlight 1133 private Paint mTouchHightlightPaint = new Paint(); 1134 // debug only 1135 private static final boolean DEBUG_TOUCH_HIGHLIGHT = true; 1136 private static final int TOUCH_HIGHLIGHT_ELAPSE_TIME = 2000; 1137 private Paint mTouchCrossHairColor; 1138 private int mTouchHighlightX; 1139 private int mTouchHighlightY; 1140 private long mTouchHighlightRequested; 1141 1142 // Basically this proxy is used to tell the Video to update layer tree at 1143 // SetBaseLayer time and to pause when WebView paused. 1144 private HTML5VideoViewProxy mHTML5VideoViewProxy; 1145 1146 // If we are using a set picture, don't send view updates to webkit 1147 private boolean mBlockWebkitViewMessages = false; 1148 1149 // cached value used to determine if we need to switch drawing models 1150 private boolean mHardwareAccelSkia = false; 1151 1152 /* 1153 * Private message ids 1154 */ 1155 private static final int REMEMBER_PASSWORD = 1; 1156 private static final int NEVER_REMEMBER_PASSWORD = 2; 1157 private static final int SWITCH_TO_SHORTPRESS = 3; 1158 private static final int SWITCH_TO_LONGPRESS = 4; 1159 private static final int RELEASE_SINGLE_TAP = 5; 1160 private static final int REQUEST_FORM_DATA = 6; 1161 private static final int DRAG_HELD_MOTIONLESS = 8; 1162 private static final int AWAKEN_SCROLL_BARS = 9; 1163 private static final int PREVENT_DEFAULT_TIMEOUT = 10; 1164 private static final int SCROLL_SELECT_TEXT = 11; 1165 1166 1167 private static final int FIRST_PRIVATE_MSG_ID = REMEMBER_PASSWORD; 1168 private static final int LAST_PRIVATE_MSG_ID = SCROLL_SELECT_TEXT; 1169 1170 /* 1171 * Package message ids 1172 */ 1173 static final int SCROLL_TO_MSG_ID = 101; 1174 static final int NEW_PICTURE_MSG_ID = 105; 1175 static final int WEBCORE_INITIALIZED_MSG_ID = 107; 1176 static final int UPDATE_TEXTFIELD_TEXT_MSG_ID = 108; 1177 static final int UPDATE_ZOOM_RANGE = 109; 1178 static final int TAKE_FOCUS = 110; 1179 static final int CLEAR_TEXT_ENTRY = 111; 1180 static final int UPDATE_TEXT_SELECTION_MSG_ID = 112; 1181 static final int SHOW_RECT_MSG_ID = 113; 1182 static final int LONG_PRESS_CENTER = 114; 1183 static final int PREVENT_TOUCH_ID = 115; 1184 static final int WEBCORE_NEED_TOUCH_EVENTS = 116; 1185 // obj=Rect in doc coordinates 1186 static final int INVAL_RECT_MSG_ID = 117; 1187 static final int REQUEST_KEYBOARD = 118; 1188 static final int SHOW_FULLSCREEN = 120; 1189 static final int HIDE_FULLSCREEN = 121; 1190 static final int REPLACE_BASE_CONTENT = 123; 1191 static final int UPDATE_MATCH_COUNT = 126; 1192 static final int CENTER_FIT_RECT = 127; 1193 static final int SET_SCROLLBAR_MODES = 129; 1194 static final int SELECTION_STRING_CHANGED = 130; 1195 static final int HIT_TEST_RESULT = 131; 1196 static final int SAVE_WEBARCHIVE_FINISHED = 132; 1197 1198 static final int SET_AUTOFILLABLE = 133; 1199 static final int AUTOFILL_COMPLETE = 134; 1200 1201 static final int SCREEN_ON = 136; 1202 static final int ENTER_FULLSCREEN_VIDEO = 137; 1203 static final int UPDATE_ZOOM_DENSITY = 139; 1204 static final int EXIT_FULLSCREEN_VIDEO = 140; 1205 1206 static final int COPY_TO_CLIPBOARD = 141; 1207 static final int INIT_EDIT_FIELD = 142; 1208 static final int REPLACE_TEXT = 143; 1209 static final int CLEAR_CARET_HANDLE = 144; 1210 static final int KEY_PRESS = 145; 1211 static final int RELOCATE_AUTO_COMPLETE_POPUP = 146; 1212 static final int FOCUS_NODE_CHANGED = 147; 1213 static final int AUTOFILL_FORM = 148; 1214 static final int SCROLL_EDIT_TEXT = 149; 1215 static final int EDIT_TEXT_SIZE_CHANGED = 150; 1216 static final int SHOW_CARET_HANDLE = 151; 1217 static final int UPDATE_CONTENT_BOUNDS = 152; 1218 1219 private static final int FIRST_PACKAGE_MSG_ID = SCROLL_TO_MSG_ID; 1220 private static final int LAST_PACKAGE_MSG_ID = HIT_TEST_RESULT; 1221 1222 static final String[] HandlerPrivateDebugString = { 1223 "REMEMBER_PASSWORD", // = 1; 1224 "NEVER_REMEMBER_PASSWORD", // = 2; 1225 "SWITCH_TO_SHORTPRESS", // = 3; 1226 "SWITCH_TO_LONGPRESS", // = 4; 1227 "RELEASE_SINGLE_TAP", // = 5; 1228 "REQUEST_FORM_DATA", // = 6; 1229 "RESUME_WEBCORE_PRIORITY", // = 7; 1230 "DRAG_HELD_MOTIONLESS", // = 8; 1231 "AWAKEN_SCROLL_BARS", // = 9; 1232 "PREVENT_DEFAULT_TIMEOUT", // = 10; 1233 "SCROLL_SELECT_TEXT" // = 11; 1234 }; 1235 1236 static final String[] HandlerPackageDebugString = { 1237 "SCROLL_TO_MSG_ID", // = 101; 1238 "102", // = 102; 1239 "103", // = 103; 1240 "104", // = 104; 1241 "NEW_PICTURE_MSG_ID", // = 105; 1242 "UPDATE_TEXT_ENTRY_MSG_ID", // = 106; 1243 "WEBCORE_INITIALIZED_MSG_ID", // = 107; 1244 "UPDATE_TEXTFIELD_TEXT_MSG_ID", // = 108; 1245 "UPDATE_ZOOM_RANGE", // = 109; 1246 "UNHANDLED_NAV_KEY", // = 110; 1247 "CLEAR_TEXT_ENTRY", // = 111; 1248 "UPDATE_TEXT_SELECTION_MSG_ID", // = 112; 1249 "SHOW_RECT_MSG_ID", // = 113; 1250 "LONG_PRESS_CENTER", // = 114; 1251 "PREVENT_TOUCH_ID", // = 115; 1252 "WEBCORE_NEED_TOUCH_EVENTS", // = 116; 1253 "INVAL_RECT_MSG_ID", // = 117; 1254 "REQUEST_KEYBOARD", // = 118; 1255 "DO_MOTION_UP", // = 119; 1256 "SHOW_FULLSCREEN", // = 120; 1257 "HIDE_FULLSCREEN", // = 121; 1258 "DOM_FOCUS_CHANGED", // = 122; 1259 "REPLACE_BASE_CONTENT", // = 123; 1260 "RETURN_LABEL", // = 125; 1261 "UPDATE_MATCH_COUNT", // = 126; 1262 "CENTER_FIT_RECT", // = 127; 1263 "REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID", // = 128; 1264 "SET_SCROLLBAR_MODES", // = 129; 1265 "SELECTION_STRING_CHANGED", // = 130; 1266 "SET_TOUCH_HIGHLIGHT_RECTS", // = 131; 1267 "SAVE_WEBARCHIVE_FINISHED", // = 132; 1268 "SET_AUTOFILLABLE", // = 133; 1269 "AUTOFILL_COMPLETE", // = 134; 1270 "SELECT_AT", // = 135; 1271 "SCREEN_ON", // = 136; 1272 "ENTER_FULLSCREEN_VIDEO", // = 137; 1273 "UPDATE_SELECTION", // = 138; 1274 "UPDATE_ZOOM_DENSITY" // = 139; 1275 }; 1276 1277 // If the site doesn't use the viewport meta tag to specify the viewport, 1278 // use DEFAULT_VIEWPORT_WIDTH as the default viewport width 1279 static final int DEFAULT_VIEWPORT_WIDTH = 980; 1280 1281 // normally we try to fit the content to the minimum preferred width 1282 // calculated by the Webkit. To avoid the bad behavior when some site's 1283 // minimum preferred width keeps growing when changing the viewport width or 1284 // the minimum preferred width is huge, an upper limit is needed. 1285 static int sMaxViewportWidth = DEFAULT_VIEWPORT_WIDTH; 1286 1287 // initial scale in percent. 0 means using default. 1288 private int mInitialScaleInPercent = 0; 1289 1290 // Whether or not a scroll event should be sent to webkit. This is only set 1291 // to false when restoring the scroll position. 1292 private boolean mSendScrollEvent = true; 1293 1294 private int mSnapScrollMode = SNAP_NONE; 1295 private static final int SNAP_NONE = 0; 1296 private static final int SNAP_LOCK = 1; // not a separate state 1297 private static final int SNAP_X = 2; // may be combined with SNAP_LOCK 1298 private static final int SNAP_Y = 4; // may be combined with SNAP_LOCK 1299 private boolean mSnapPositive; 1300 1301 // keep these in sync with their counterparts in WebView.cpp 1302 private static final int DRAW_EXTRAS_NONE = 0; 1303 private static final int DRAW_EXTRAS_SELECTION = 1; 1304 private static final int DRAW_EXTRAS_CURSOR_RING = 2; 1305 1306 // keep this in sync with WebCore:ScrollbarMode in WebKit 1307 private static final int SCROLLBAR_AUTO = 0; 1308 private static final int SCROLLBAR_ALWAYSOFF = 1; 1309 // as we auto fade scrollbar, this is ignored. 1310 private static final int SCROLLBAR_ALWAYSON = 2; 1311 private int mHorizontalScrollBarMode = SCROLLBAR_AUTO; 1312 private int mVerticalScrollBarMode = SCROLLBAR_AUTO; 1313 1314 // constants for determining script injection strategy 1315 private static final int ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED = -1; 1316 private static final int ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT = 0; 1317 private static final int ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED = 1; 1318 1319 // the alias via which accessibility JavaScript interface is exposed 1320 private static final String ALIAS_ACCESSIBILITY_JS_INTERFACE = "accessibility"; 1321 1322 // Template for JavaScript that injects a screen-reader. 1323 private static final String ACCESSIBILITY_SCREEN_READER_JAVASCRIPT_TEMPLATE = 1324 "javascript:(function() {" + 1325 " var chooser = document.createElement('script');" + 1326 " chooser.type = 'text/javascript';" + 1327 " chooser.src = '%1s';" + 1328 " document.getElementsByTagName('head')[0].appendChild(chooser);" + 1329 " })();"; 1330 1331 // Regular expression that matches the "axs" URL parameter. 1332 // The value of 0 means the accessibility script is opted out 1333 // The value of 1 means the accessibility script is already injected 1334 private static final String PATTERN_MATCH_AXS_URL_PARAMETER = "(\\?axs=(0|1))|(&axs=(0|1))"; 1335 1336 // TextToSpeech instance exposed to JavaScript to the injected screenreader. 1337 private TextToSpeech mTextToSpeech; 1338 1339 // variable to cache the above pattern in case accessibility is enabled. 1340 private Pattern mMatchAxsUrlParameterPattern; 1341 1342 /** 1343 * Max distance to overscroll by in pixels. 1344 * This how far content can be pulled beyond its normal bounds by the user. 1345 */ 1346 private int mOverscrollDistance; 1347 1348 /** 1349 * Max distance to overfling by in pixels. 1350 * This is how far flinged content can move beyond the end of its normal bounds. 1351 */ 1352 private int mOverflingDistance; 1353 1354 private OverScrollGlow mOverScrollGlow; 1355 1356 // Used to match key downs and key ups 1357 private Vector<Integer> mKeysPressed; 1358 1359 /* package */ static boolean mLogEvent = true; 1360 1361 // for event log 1362 private long mLastTouchUpTime = 0; 1363 1364 private WebViewCore.AutoFillData mAutoFillData; 1365 1366 private static boolean sNotificationsEnabled = true; 1367 1368 /** 1369 * URI scheme for telephone number 1370 */ 1371 public static final String SCHEME_TEL = "tel:"; 1372 /** 1373 * URI scheme for email address 1374 */ 1375 public static final String SCHEME_MAILTO = "mailto:"; 1376 /** 1377 * URI scheme for map address 1378 */ 1379 public static final String SCHEME_GEO = "geo:0,0?q="; 1380 1381 private int mBackgroundColor = Color.WHITE; 1382 1383 private static final long SELECT_SCROLL_INTERVAL = 1000 / 60; // 60 / second 1384 private int mAutoScrollX = 0; 1385 private int mAutoScrollY = 0; 1386 private int mMinAutoScrollX = 0; 1387 private int mMaxAutoScrollX = 0; 1388 private int mMinAutoScrollY = 0; 1389 private int mMaxAutoScrollY = 0; 1390 private Rect mScrollingLayerBounds = new Rect(); 1391 private boolean mSentAutoScrollMessage = false; 1392 1393 // used for serializing asynchronously handled touch events. 1394 private WebViewInputDispatcher mInputDispatcher; 1395 1396 // Used to track whether picture updating was paused due to a window focus change. 1397 private boolean mPictureUpdatePausedForFocusChange = false; 1398 1399 // Used to notify listeners of a new picture. 1400 private PictureListener mPictureListener; 1401 1402 // Used to notify listeners about find-on-page results. 1403 private WebView.FindListener mFindListener; 1404 1405 // Used to prevent resending save password message 1406 private Message mResumeMsg; 1407 1408 /** 1409 * Refer to {@link WebView#requestFocusNodeHref(Message)} for more information 1410 */ 1411 static class FocusNodeHref { 1412 static final String TITLE = "title"; 1413 static final String URL = "url"; 1414 static final String SRC = "src"; 1415 } 1416 1417 public WebViewClassic(WebView webView, WebView.PrivateAccess privateAccess) { 1418 mWebView = webView; 1419 mWebViewPrivate = privateAccess; 1420 mContext = webView.getContext(); 1421 } 1422 1423 /** 1424 * See {@link WebViewProvider#init(Map, boolean)} 1425 */ 1426 @Override 1427 public void init(Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { 1428 Context context = mContext; 1429 1430 // Used by the chrome stack to find application paths 1431 JniUtil.setContext(context); 1432 1433 mCallbackProxy = new CallbackProxy(context, this); 1434 mViewManager = new ViewManager(this); 1435 L10nUtils.setApplicationContext(context.getApplicationContext()); 1436 mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javaScriptInterfaces); 1437 mDatabase = WebViewDatabase.getInstance(context); 1438 mScroller = new OverScroller(context, null, 0, 0, false); //TODO Use OverScroller's flywheel 1439 mZoomManager = new ZoomManager(this, mCallbackProxy); 1440 1441 /* The init method must follow the creation of certain member variables, 1442 * such as the mZoomManager. 1443 */ 1444 init(); 1445 setupPackageListener(context); 1446 setupProxyListener(context); 1447 setupTrustStorageListener(context); 1448 updateMultiTouchSupport(context); 1449 1450 if (privateBrowsing) { 1451 startPrivateBrowsing(); 1452 } 1453 1454 mAutoFillData = new WebViewCore.AutoFillData(); 1455 mEditTextScroller = new Scroller(context); 1456 } 1457 1458 // WebViewProvider bindings 1459 1460 static class Factory implements WebViewFactoryProvider, WebViewFactoryProvider.Statics { 1461 @Override 1462 public WebViewProvider createWebView(WebView webView, WebView.PrivateAccess privateAccess) { 1463 return new WebViewClassic(webView, privateAccess); 1464 } 1465 1466 @Override 1467 public Statics getStatics() { return this; } 1468 1469 @Override 1470 public String findAddress(String addr) { 1471 return WebViewClassic.findAddress(addr); 1472 } 1473 @Override 1474 public void setPlatformNotificationsEnabled(boolean enable) { 1475 if (enable) { 1476 WebViewClassic.enablePlatformNotifications(); 1477 } else { 1478 WebViewClassic.disablePlatformNotifications(); 1479 } 1480 } 1481 1482 } 1483 1484 private void onHandleUiEvent(MotionEvent event, int eventType, int flags) { 1485 switch (eventType) { 1486 case WebViewInputDispatcher.EVENT_TYPE_LONG_PRESS: 1487 HitTestResult hitTest = getHitTestResult(); 1488 if (hitTest != null) { 1489 performLongClick(); 1490 } 1491 break; 1492 case WebViewInputDispatcher.EVENT_TYPE_DOUBLE_TAP: 1493 mZoomManager.handleDoubleTap(event.getX(), event.getY()); 1494 break; 1495 case WebViewInputDispatcher.EVENT_TYPE_TOUCH: 1496 onHandleUiTouchEvent(event); 1497 break; 1498 } 1499 } 1500 1501 private void onHandleUiTouchEvent(MotionEvent ev) { 1502 final ScaleGestureDetector detector = 1503 mZoomManager.getMultiTouchGestureDetector(); 1504 1505 float x = ev.getX(); 1506 float y = ev.getY(); 1507 1508 if (detector != null) { 1509 detector.onTouchEvent(ev); 1510 if (detector.isInProgress()) { 1511 mLastTouchTime = ev.getEventTime(); 1512 x = detector.getFocusX(); 1513 y = detector.getFocusY(); 1514 1515 mWebView.cancelLongPress(); 1516 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 1517 if (!mZoomManager.supportsPanDuringZoom()) { 1518 return; 1519 } 1520 mTouchMode = TOUCH_DRAG_MODE; 1521 if (mVelocityTracker == null) { 1522 mVelocityTracker = VelocityTracker.obtain(); 1523 } 1524 } 1525 } 1526 1527 int action = ev.getActionMasked(); 1528 if (action == MotionEvent.ACTION_POINTER_DOWN) { 1529 cancelTouch(); 1530 action = MotionEvent.ACTION_DOWN; 1531 } else if (action == MotionEvent.ACTION_POINTER_UP && ev.getPointerCount() >= 2) { 1532 // set mLastTouchX/Y to the remaining points for multi-touch. 1533 mLastTouchX = Math.round(x); 1534 mLastTouchY = Math.round(y); 1535 } else if (action == MotionEvent.ACTION_MOVE) { 1536 // negative x or y indicate it is on the edge, skip it. 1537 if (x < 0 || y < 0) { 1538 return; 1539 } 1540 } 1541 1542 handleTouchEventCommon(ev, action, Math.round(x), Math.round(y)); 1543 } 1544 1545 // The webview that is bound to this WebViewClassic instance. Primarily needed for supplying 1546 // as the first param in the WebViewClient and WebChromeClient callbacks. 1547 final private WebView mWebView; 1548 // Callback interface, provides priviledged access into the WebView instance. 1549 final private WebView.PrivateAccess mWebViewPrivate; 1550 // Cached reference to mWebView.getContext(), for convenience. 1551 final private Context mContext; 1552 1553 /** 1554 * @return The webview proxy that this classic webview is bound to. 1555 */ 1556 public WebView getWebView() { 1557 return mWebView; 1558 } 1559 1560 @Override 1561 public ViewDelegate getViewDelegate() { 1562 return this; 1563 } 1564 1565 @Override 1566 public ScrollDelegate getScrollDelegate() { 1567 return this; 1568 } 1569 1570 public static WebViewClassic fromWebView(WebView webView) { 1571 return webView == null ? null : (WebViewClassic) webView.getWebViewProvider(); 1572 } 1573 1574 // Accessors, purely for convenience (and to reduce code churn during webview proxy migration). 1575 int getScrollX() { 1576 return mWebView.getScrollX(); 1577 } 1578 1579 int getScrollY() { 1580 return mWebView.getScrollY(); 1581 } 1582 1583 int getWidth() { 1584 return mWebView.getWidth(); 1585 } 1586 1587 int getHeight() { 1588 return mWebView.getHeight(); 1589 } 1590 1591 Context getContext() { 1592 return mContext; 1593 } 1594 1595 void invalidate() { 1596 mWebView.invalidate(); 1597 } 1598 1599 // Setters for the Scroll X & Y, without invoking the onScrollChanged etc code paths. 1600 void setScrollXRaw(int mScrollX) { 1601 mWebViewPrivate.setScrollXRaw(mScrollX); 1602 } 1603 1604 void setScrollYRaw(int mScrollY) { 1605 mWebViewPrivate.setScrollYRaw(mScrollY); 1606 } 1607 1608 private static class TrustStorageListener extends BroadcastReceiver { 1609 @Override 1610 public void onReceive(Context context, Intent intent) { 1611 if (intent.getAction().equals(KeyChain.ACTION_STORAGE_CHANGED)) { 1612 handleCertTrustChanged(); 1613 } 1614 } 1615 } 1616 private static TrustStorageListener sTrustStorageListener; 1617 1618 /** 1619 * Handles update to the trust storage. 1620 */ 1621 private static void handleCertTrustChanged() { 1622 // send a message for indicating trust storage change 1623 WebViewCore.sendStaticMessage(EventHub.TRUST_STORAGE_UPDATED, null); 1624 } 1625 1626 /* 1627 * @param context This method expects this to be a valid context. 1628 */ 1629 private static void setupTrustStorageListener(Context context) { 1630 if (sTrustStorageListener != null ) { 1631 return; 1632 } 1633 IntentFilter filter = new IntentFilter(); 1634 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1635 sTrustStorageListener = new TrustStorageListener(); 1636 Intent current = 1637 context.getApplicationContext().registerReceiver(sTrustStorageListener, filter); 1638 if (current != null) { 1639 handleCertTrustChanged(); 1640 } 1641 } 1642 1643 private static class ProxyReceiver extends BroadcastReceiver { 1644 @Override 1645 public void onReceive(Context context, Intent intent) { 1646 if (intent.getAction().equals(Proxy.PROXY_CHANGE_ACTION)) { 1647 handleProxyBroadcast(intent); 1648 } 1649 } 1650 } 1651 1652 /* 1653 * Receiver for PROXY_CHANGE_ACTION, will be null when it is not added handling broadcasts. 1654 */ 1655 private static ProxyReceiver sProxyReceiver; 1656 1657 /* 1658 * @param context This method expects this to be a valid context 1659 */ 1660 private static synchronized void setupProxyListener(Context context) { 1661 if (sProxyReceiver != null || sNotificationsEnabled == false) { 1662 return; 1663 } 1664 IntentFilter filter = new IntentFilter(); 1665 filter.addAction(Proxy.PROXY_CHANGE_ACTION); 1666 sProxyReceiver = new ProxyReceiver(); 1667 Intent currentProxy = context.getApplicationContext().registerReceiver( 1668 sProxyReceiver, filter); 1669 if (currentProxy != null) { 1670 handleProxyBroadcast(currentProxy); 1671 } 1672 } 1673 1674 /* 1675 * @param context This method expects this to be a valid context 1676 */ 1677 private static synchronized void disableProxyListener(Context context) { 1678 if (sProxyReceiver == null) 1679 return; 1680 1681 context.getApplicationContext().unregisterReceiver(sProxyReceiver); 1682 sProxyReceiver = null; 1683 } 1684 1685 private static void handleProxyBroadcast(Intent intent) { 1686 ProxyProperties proxyProperties = (ProxyProperties)intent.getExtra(Proxy.EXTRA_PROXY_INFO); 1687 if (proxyProperties == null || proxyProperties.getHost() == null) { 1688 WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, null); 1689 return; 1690 } 1691 WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, proxyProperties); 1692 } 1693 1694 /* 1695 * A variable to track if there is a receiver added for ACTION_PACKAGE_ADDED 1696 * or ACTION_PACKAGE_REMOVED. 1697 */ 1698 private static boolean sPackageInstallationReceiverAdded = false; 1699 1700 /* 1701 * A set of Google packages we monitor for the 1702 * navigator.isApplicationInstalled() API. Add additional packages as 1703 * needed. 1704 */ 1705 private static Set<String> sGoogleApps; 1706 static { 1707 sGoogleApps = new HashSet<String>(); 1708 sGoogleApps.add("com.google.android.youtube"); 1709 } 1710 1711 private static class PackageListener extends BroadcastReceiver { 1712 @Override 1713 public void onReceive(Context context, Intent intent) { 1714 final String action = intent.getAction(); 1715 final String packageName = intent.getData().getSchemeSpecificPart(); 1716 final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 1717 if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) { 1718 // if it is replacing, refreshPlugins() when adding 1719 return; 1720 } 1721 1722 if (sGoogleApps.contains(packageName)) { 1723 if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1724 WebViewCore.sendStaticMessage(EventHub.ADD_PACKAGE_NAME, packageName); 1725 } else { 1726 WebViewCore.sendStaticMessage(EventHub.REMOVE_PACKAGE_NAME, packageName); 1727 } 1728 } 1729 1730 PluginManager pm = PluginManager.getInstance(context); 1731 if (pm.containsPluginPermissionAndSignatures(packageName)) { 1732 pm.refreshPlugins(Intent.ACTION_PACKAGE_ADDED.equals(action)); 1733 } 1734 } 1735 } 1736 1737 private void setupPackageListener(Context context) { 1738 1739 /* 1740 * we must synchronize the instance check and the creation of the 1741 * receiver to ensure that only ONE receiver exists for all WebView 1742 * instances. 1743 */ 1744 synchronized (WebViewClassic.class) { 1745 1746 // if the receiver already exists then we do not need to register it 1747 // again 1748 if (sPackageInstallationReceiverAdded) { 1749 return; 1750 } 1751 1752 IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); 1753 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1754 filter.addDataScheme("package"); 1755 BroadcastReceiver packageListener = new PackageListener(); 1756 context.getApplicationContext().registerReceiver(packageListener, filter); 1757 sPackageInstallationReceiverAdded = true; 1758 } 1759 1760 // check if any of the monitored apps are already installed 1761 AsyncTask<Void, Void, Set<String>> task = new AsyncTask<Void, Void, Set<String>>() { 1762 1763 @Override 1764 protected Set<String> doInBackground(Void... unused) { 1765 Set<String> installedPackages = new HashSet<String>(); 1766 PackageManager pm = mContext.getPackageManager(); 1767 for (String name : sGoogleApps) { 1768 try { 1769 pm.getPackageInfo(name, 1770 PackageManager.GET_ACTIVITIES | PackageManager.GET_SERVICES); 1771 installedPackages.add(name); 1772 } catch (PackageManager.NameNotFoundException e) { 1773 // package not found 1774 } 1775 } 1776 return installedPackages; 1777 } 1778 1779 // Executes on the UI thread 1780 @Override 1781 protected void onPostExecute(Set<String> installedPackages) { 1782 if (mWebViewCore != null) { 1783 mWebViewCore.sendMessage(EventHub.ADD_PACKAGE_NAMES, installedPackages); 1784 } 1785 } 1786 }; 1787 task.execute(); 1788 } 1789 1790 void updateMultiTouchSupport(Context context) { 1791 mZoomManager.updateMultiTouchSupport(context); 1792 } 1793 1794 private void init() { 1795 OnTrimMemoryListener.init(mContext); 1796 mWebView.setWillNotDraw(false); 1797 mWebView.setFocusable(true); 1798 mWebView.setFocusableInTouchMode(true); 1799 mWebView.setClickable(true); 1800 mWebView.setLongClickable(true); 1801 1802 final ViewConfiguration configuration = ViewConfiguration.get(mContext); 1803 int slop = configuration.getScaledTouchSlop(); 1804 mTouchSlopSquare = slop * slop; 1805 slop = configuration.getScaledDoubleTapSlop(); 1806 mDoubleTapSlopSquare = slop * slop; 1807 final float density = mContext.getResources().getDisplayMetrics().density; 1808 // use one line height, 16 based on our current default font, for how 1809 // far we allow a touch be away from the edge of a link 1810 mNavSlop = (int) (16 * density); 1811 mZoomManager.init(density); 1812 mMaximumFling = configuration.getScaledMaximumFlingVelocity(); 1813 1814 // Compute the inverse of the density squared. 1815 DRAG_LAYER_INVERSE_DENSITY_SQUARED = 1 / (density * density); 1816 1817 mOverscrollDistance = configuration.getScaledOverscrollDistance(); 1818 mOverflingDistance = configuration.getScaledOverflingDistance(); 1819 1820 setScrollBarStyle(mWebViewPrivate.super_getScrollBarStyle()); 1821 // Initially use a size of two, since the user is likely to only hold 1822 // down two keys at a time (shift + another key) 1823 mKeysPressed = new Vector<Integer>(2); 1824 mHTML5VideoViewProxy = null ; 1825 } 1826 1827 @Override 1828 public boolean shouldDelayChildPressedState() { 1829 return true; 1830 } 1831 1832 /** 1833 * Adds accessibility APIs to JavaScript. 1834 * 1835 * Note: This method is responsible to performing the necessary 1836 * check if the accessibility APIs should be exposed. 1837 */ 1838 private void addAccessibilityApisToJavaScript() { 1839 if (AccessibilityManager.getInstance(mContext).isEnabled() 1840 && getSettings().getJavaScriptEnabled()) { 1841 // exposing the TTS for now ... 1842 final Context ctx = mContext; 1843 if (ctx != null) { 1844 final String packageName = ctx.getPackageName(); 1845 if (packageName != null) { 1846 mTextToSpeech = new TextToSpeech(ctx, null, null, 1847 packageName + ".**webview**", true); 1848 addJavascriptInterface(mTextToSpeech, ALIAS_ACCESSIBILITY_JS_INTERFACE); 1849 } 1850 } 1851 } 1852 } 1853 1854 /** 1855 * Removes accessibility APIs from JavaScript. 1856 */ 1857 private void removeAccessibilityApisFromJavaScript() { 1858 // exposing the TTS for now ... 1859 if (mTextToSpeech != null) { 1860 removeJavascriptInterface(ALIAS_ACCESSIBILITY_JS_INTERFACE); 1861 mTextToSpeech.shutdown(); 1862 mTextToSpeech = null; 1863 } 1864 } 1865 1866 @Override 1867 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 1868 info.setScrollable(isScrollableForAccessibility()); 1869 } 1870 1871 @Override 1872 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 1873 event.setScrollable(isScrollableForAccessibility()); 1874 event.setScrollX(getScrollX()); 1875 event.setScrollY(getScrollY()); 1876 final int convertedContentWidth = contentToViewX(getContentWidth()); 1877 final int adjustedViewWidth = getWidth() - mWebView.getPaddingLeft() 1878 - mWebView.getPaddingLeft(); 1879 event.setMaxScrollX(Math.max(convertedContentWidth - adjustedViewWidth, 0)); 1880 final int convertedContentHeight = contentToViewY(getContentHeight()); 1881 final int adjustedViewHeight = getHeight() - mWebView.getPaddingTop() 1882 - mWebView.getPaddingBottom(); 1883 event.setMaxScrollY(Math.max(convertedContentHeight - adjustedViewHeight, 0)); 1884 } 1885 1886 private boolean isScrollableForAccessibility() { 1887 return (contentToViewX(getContentWidth()) > getWidth() - mWebView.getPaddingLeft() 1888 - mWebView.getPaddingRight() 1889 || contentToViewY(getContentHeight()) > getHeight() - mWebView.getPaddingTop() 1890 - mWebView.getPaddingBottom()); 1891 } 1892 1893 @Override 1894 public void setOverScrollMode(int mode) { 1895 if (mode != View.OVER_SCROLL_NEVER) { 1896 if (mOverScrollGlow == null) { 1897 mOverScrollGlow = new OverScrollGlow(this); 1898 } 1899 } else { 1900 mOverScrollGlow = null; 1901 } 1902 } 1903 1904 /* package */ void adjustDefaultZoomDensity(int zoomDensity) { 1905 final float density = mContext.getResources().getDisplayMetrics().density 1906 * 100 / zoomDensity; 1907 updateDefaultZoomDensity(density); 1908 } 1909 1910 /* package */ void updateDefaultZoomDensity(float density) { 1911 mNavSlop = (int) (16 * density); 1912 mZoomManager.updateDefaultZoomDensity(density); 1913 } 1914 1915 /* package */ boolean onSavePassword(String schemePlusHost, String username, 1916 String password, final Message resumeMsg) { 1917 boolean rVal = false; 1918 if (resumeMsg == null) { 1919 // null resumeMsg implies saving password silently 1920 mDatabase.setUsernamePassword(schemePlusHost, username, password); 1921 } else { 1922 if (mResumeMsg != null) { 1923 Log.w(LOGTAG, "onSavePassword should not be called while dialog is up"); 1924 resumeMsg.sendToTarget(); 1925 return true; 1926 } 1927 mResumeMsg = resumeMsg; 1928 final Message remember = mPrivateHandler.obtainMessage( 1929 REMEMBER_PASSWORD); 1930 remember.getData().putString("host", schemePlusHost); 1931 remember.getData().putString("username", username); 1932 remember.getData().putString("password", password); 1933 remember.obj = resumeMsg; 1934 1935 final Message neverRemember = mPrivateHandler.obtainMessage( 1936 NEVER_REMEMBER_PASSWORD); 1937 neverRemember.getData().putString("host", schemePlusHost); 1938 neverRemember.getData().putString("username", username); 1939 neverRemember.getData().putString("password", password); 1940 neverRemember.obj = resumeMsg; 1941 1942 new AlertDialog.Builder(mContext) 1943 .setTitle(com.android.internal.R.string.save_password_label) 1944 .setMessage(com.android.internal.R.string.save_password_message) 1945 .setPositiveButton(com.android.internal.R.string.save_password_notnow, 1946 new DialogInterface.OnClickListener() { 1947 @Override 1948 public void onClick(DialogInterface dialog, int which) { 1949 if (mResumeMsg != null) { 1950 resumeMsg.sendToTarget(); 1951 mResumeMsg = null; 1952 } 1953 } 1954 }) 1955 .setNeutralButton(com.android.internal.R.string.save_password_remember, 1956 new DialogInterface.OnClickListener() { 1957 @Override 1958 public void onClick(DialogInterface dialog, int which) { 1959 if (mResumeMsg != null) { 1960 remember.sendToTarget(); 1961 mResumeMsg = null; 1962 } 1963 } 1964 }) 1965 .setNegativeButton(com.android.internal.R.string.save_password_never, 1966 new DialogInterface.OnClickListener() { 1967 @Override 1968 public void onClick(DialogInterface dialog, int which) { 1969 if (mResumeMsg != null) { 1970 neverRemember.sendToTarget(); 1971 mResumeMsg = null; 1972 } 1973 } 1974 }) 1975 .setOnCancelListener(new OnCancelListener() { 1976 @Override 1977 public void onCancel(DialogInterface dialog) { 1978 if (mResumeMsg != null) { 1979 resumeMsg.sendToTarget(); 1980 mResumeMsg = null; 1981 } 1982 } 1983 }).show(); 1984 // Return true so that WebViewCore will pause while the dialog is 1985 // up. 1986 rVal = true; 1987 } 1988 return rVal; 1989 } 1990 1991 @Override 1992 public void setScrollBarStyle(int style) { 1993 if (style == View.SCROLLBARS_INSIDE_INSET 1994 || style == View.SCROLLBARS_OUTSIDE_INSET) { 1995 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = false; 1996 } else { 1997 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = true; 1998 } 1999 } 2000 2001 /** 2002 * See {@link WebView#setHorizontalScrollbarOverlay(boolean)} 2003 */ 2004 @Override 2005 public void setHorizontalScrollbarOverlay(boolean overlay) { 2006 mOverlayHorizontalScrollbar = overlay; 2007 } 2008 2009 /** 2010 * See {@link WebView#setVerticalScrollbarOverlay(boolean) 2011 */ 2012 @Override 2013 public void setVerticalScrollbarOverlay(boolean overlay) { 2014 mOverlayVerticalScrollbar = overlay; 2015 } 2016 2017 /** 2018 * See {@link WebView#overlayHorizontalScrollbar()} 2019 */ 2020 @Override 2021 public boolean overlayHorizontalScrollbar() { 2022 return mOverlayHorizontalScrollbar; 2023 } 2024 2025 /** 2026 * See {@link WebView#overlayVerticalScrollbar()} 2027 */ 2028 @Override 2029 public boolean overlayVerticalScrollbar() { 2030 return mOverlayVerticalScrollbar; 2031 } 2032 2033 /* 2034 * Return the width of the view where the content of WebView should render 2035 * to. 2036 * Note: this can be called from WebCoreThread. 2037 */ 2038 /* package */ int getViewWidth() { 2039 if (!mWebView.isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) { 2040 return getWidth(); 2041 } else { 2042 return Math.max(0, getWidth() - mWebView.getVerticalScrollbarWidth()); 2043 } 2044 } 2045 2046 // Interface to enable the browser to override title bar handling. 2047 public interface TitleBarDelegate { 2048 int getTitleHeight(); 2049 public void onSetEmbeddedTitleBar(final View title); 2050 } 2051 2052 /** 2053 * Returns the height (in pixels) of the embedded title bar (if any). Does not care about 2054 * scrolling 2055 */ 2056 protected int getTitleHeight() { 2057 if (mWebView instanceof TitleBarDelegate) { 2058 return ((TitleBarDelegate) mWebView).getTitleHeight(); 2059 } 2060 return 0; 2061 } 2062 2063 /** 2064 * See {@link WebView#getVisibleTitleHeight()} 2065 */ 2066 @Override 2067 @Deprecated 2068 public int getVisibleTitleHeight() { 2069 // Actually, this method returns the height of the embedded title bar if one is set via the 2070 // hidden setEmbeddedTitleBar method. 2071 return getVisibleTitleHeightImpl(); 2072 } 2073 2074 private int getVisibleTitleHeightImpl() { 2075 // need to restrict mScrollY due to over scroll 2076 return Math.max(getTitleHeight() - Math.max(0, getScrollY()), 2077 getOverlappingActionModeHeight()); 2078 } 2079 2080 private int mCachedOverlappingActionModeHeight = -1; 2081 2082 private int getOverlappingActionModeHeight() { 2083 if (mFindCallback == null) { 2084 return 0; 2085 } 2086 if (mCachedOverlappingActionModeHeight < 0) { 2087 mWebView.getGlobalVisibleRect(mGlobalVisibleRect, mGlobalVisibleOffset); 2088 mCachedOverlappingActionModeHeight = Math.max(0, 2089 mFindCallback.getActionModeGlobalBottom() - mGlobalVisibleRect.top); 2090 } 2091 return mCachedOverlappingActionModeHeight; 2092 } 2093 2094 /* 2095 * Return the height of the view where the content of WebView should render 2096 * to. Note that this excludes mTitleBar, if there is one. 2097 * Note: this can be called from WebCoreThread. 2098 */ 2099 /* package */ int getViewHeight() { 2100 return getViewHeightWithTitle() - getVisibleTitleHeightImpl(); 2101 } 2102 2103 int getViewHeightWithTitle() { 2104 int height = getHeight(); 2105 if (mWebView.isHorizontalScrollBarEnabled() && !mOverlayHorizontalScrollbar) { 2106 height -= mWebViewPrivate.getHorizontalScrollbarHeight(); 2107 } 2108 return height; 2109 } 2110 2111 /** 2112 * See {@link WebView#getCertificate()} 2113 */ 2114 @Override 2115 public SslCertificate getCertificate() { 2116 return mCertificate; 2117 } 2118 2119 /** 2120 * See {@link WebView#setCertificate(SslCertificate)} 2121 */ 2122 @Override 2123 public void setCertificate(SslCertificate certificate) { 2124 if (DebugFlags.WEB_VIEW) { 2125 Log.v(LOGTAG, "setCertificate=" + certificate); 2126 } 2127 // here, the certificate can be null (if the site is not secure) 2128 mCertificate = certificate; 2129 } 2130 2131 //------------------------------------------------------------------------- 2132 // Methods called by activity 2133 //------------------------------------------------------------------------- 2134 2135 /** 2136 * See {@link WebView#savePassword(String, String, String)} 2137 */ 2138 @Override 2139 public void savePassword(String host, String username, String password) { 2140 mDatabase.setUsernamePassword(host, username, password); 2141 } 2142 2143 /** 2144 * See {@link WebView#setHttpAuthUsernamePassword(String, String, String, String)} 2145 */ 2146 @Override 2147 public void setHttpAuthUsernamePassword(String host, String realm, 2148 String username, String password) { 2149 mDatabase.setHttpAuthUsernamePassword(host, realm, username, password); 2150 } 2151 2152 /** 2153 * See {@link WebView#getHttpAuthUsernamePassword(String, String)} 2154 */ 2155 @Override 2156 public String[] getHttpAuthUsernamePassword(String host, String realm) { 2157 return mDatabase.getHttpAuthUsernamePassword(host, realm); 2158 } 2159 2160 /** 2161 * Remove Find or Select ActionModes, if active. 2162 */ 2163 private void clearActionModes() { 2164 if (mSelectCallback != null) { 2165 mSelectCallback.finish(); 2166 } 2167 if (mFindCallback != null) { 2168 mFindCallback.finish(); 2169 } 2170 } 2171 2172 /** 2173 * Called to clear state when moving from one page to another, or changing 2174 * in some other way that makes elements associated with the current page 2175 * (such as ActionModes) no longer relevant. 2176 */ 2177 private void clearHelpers() { 2178 hideSoftKeyboard(); 2179 clearActionModes(); 2180 dismissFullScreenMode(); 2181 cancelSelectDialog(); 2182 } 2183 2184 private void cancelSelectDialog() { 2185 if (mListBoxDialog != null) { 2186 mListBoxDialog.cancel(); 2187 mListBoxDialog = null; 2188 } 2189 } 2190 2191 /** 2192 * See {@link WebView#destroy()} 2193 */ 2194 @Override 2195 public void destroy() { 2196 destroyImpl(); 2197 } 2198 2199 private void destroyImpl() { 2200 mCallbackProxy.blockMessages(); 2201 clearHelpers(); 2202 if (mListBoxDialog != null) { 2203 mListBoxDialog.dismiss(); 2204 mListBoxDialog = null; 2205 } 2206 if (mNativeClass != 0) nativeStopGL(); 2207 if (mWebViewCore != null) { 2208 // Tell WebViewCore to destroy itself 2209 synchronized (this) { 2210 WebViewCore webViewCore = mWebViewCore; 2211 mWebViewCore = null; // prevent using partial webViewCore 2212 webViewCore.destroy(); 2213 } 2214 // Remove any pending messages that might not be serviced yet. 2215 mPrivateHandler.removeCallbacksAndMessages(null); 2216 } 2217 if (mNativeClass != 0) { 2218 nativeDestroy(); 2219 mNativeClass = 0; 2220 } 2221 } 2222 2223 /** 2224 * See {@link WebView#enablePlatformNotifications()} 2225 */ 2226 @Deprecated 2227 public static void enablePlatformNotifications() { 2228 synchronized (WebViewClassic.class) { 2229 sNotificationsEnabled = true; 2230 Context context = JniUtil.getContext(); 2231 if (context != null) 2232 setupProxyListener(context); 2233 } 2234 } 2235 2236 /** 2237 * See {@link WebView#disablePlatformNotifications()} 2238 */ 2239 @Deprecated 2240 public static void disablePlatformNotifications() { 2241 synchronized (WebViewClassic.class) { 2242 sNotificationsEnabled = false; 2243 Context context = JniUtil.getContext(); 2244 if (context != null) 2245 disableProxyListener(context); 2246 } 2247 } 2248 2249 /** 2250 * Sets JavaScript engine flags. 2251 * 2252 * @param flags JS engine flags in a String 2253 * 2254 * This is an implementation detail. 2255 */ 2256 public void setJsFlags(String flags) { 2257 mWebViewCore.sendMessage(EventHub.SET_JS_FLAGS, flags); 2258 } 2259 2260 /** 2261 * See {@link WebView#setNetworkAvailable(boolean)} 2262 */ 2263 @Override 2264 public void setNetworkAvailable(boolean networkUp) { 2265 mWebViewCore.sendMessage(EventHub.SET_NETWORK_STATE, 2266 networkUp ? 1 : 0, 0); 2267 } 2268 2269 /** 2270 * Inform WebView about the current network type. 2271 */ 2272 public void setNetworkType(String type, String subtype) { 2273 Map<String, String> map = new HashMap<String, String>(); 2274 map.put("type", type); 2275 map.put("subtype", subtype); 2276 mWebViewCore.sendMessage(EventHub.SET_NETWORK_TYPE, map); 2277 } 2278 2279 /** 2280 * See {@link WebView#saveState(Bundle)} 2281 */ 2282 @Override 2283 public WebBackForwardList saveState(Bundle outState) { 2284 if (outState == null) { 2285 return null; 2286 } 2287 // We grab a copy of the back/forward list because a client of WebView 2288 // may have invalidated the history list by calling clearHistory. 2289 WebBackForwardList list = copyBackForwardList(); 2290 final int currentIndex = list.getCurrentIndex(); 2291 final int size = list.getSize(); 2292 // We should fail saving the state if the list is empty or the index is 2293 // not in a valid range. 2294 if (currentIndex < 0 || currentIndex >= size || size == 0) { 2295 return null; 2296 } 2297 outState.putInt("index", currentIndex); 2298 // FIXME: This should just be a byte[][] instead of ArrayList but 2299 // Parcel.java does not have the code to handle multi-dimensional 2300 // arrays. 2301 ArrayList<byte[]> history = new ArrayList<byte[]>(size); 2302 for (int i = 0; i < size; i++) { 2303 WebHistoryItem item = list.getItemAtIndex(i); 2304 if (null == item) { 2305 // FIXME: this shouldn't happen 2306 // need to determine how item got set to null 2307 Log.w(LOGTAG, "saveState: Unexpected null history item."); 2308 return null; 2309 } 2310 byte[] data = item.getFlattenedData(); 2311 if (data == null) { 2312 // It would be very odd to not have any data for a given history 2313 // item. And we will fail to rebuild the history list without 2314 // flattened data. 2315 return null; 2316 } 2317 history.add(data); 2318 } 2319 outState.putSerializable("history", history); 2320 if (mCertificate != null) { 2321 outState.putBundle("certificate", 2322 SslCertificate.saveState(mCertificate)); 2323 } 2324 outState.putBoolean("privateBrowsingEnabled", isPrivateBrowsingEnabled()); 2325 mZoomManager.saveZoomState(outState); 2326 return list; 2327 } 2328 2329 /** 2330 * See {@link WebView#savePicture(Bundle, File)} 2331 */ 2332 @Override 2333 @Deprecated 2334 public boolean savePicture(Bundle b, final File dest) { 2335 if (dest == null || b == null) { 2336 return false; 2337 } 2338 final Picture p = capturePicture(); 2339 // Use a temporary file while writing to ensure the destination file 2340 // contains valid data. 2341 final File temp = new File(dest.getPath() + ".writing"); 2342 new Thread(new Runnable() { 2343 @Override 2344 public void run() { 2345 FileOutputStream out = null; 2346 try { 2347 out = new FileOutputStream(temp); 2348 p.writeToStream(out); 2349 // Writing the picture succeeded, rename the temporary file 2350 // to the destination. 2351 temp.renameTo(dest); 2352 } catch (Exception e) { 2353 // too late to do anything about it. 2354 } finally { 2355 if (out != null) { 2356 try { 2357 out.close(); 2358 } catch (Exception e) { 2359 // Can't do anything about that 2360 } 2361 } 2362 temp.delete(); 2363 } 2364 } 2365 }).start(); 2366 // now update the bundle 2367 b.putInt("scrollX", getScrollX()); 2368 b.putInt("scrollY", getScrollY()); 2369 mZoomManager.saveZoomState(b); 2370 return true; 2371 } 2372 2373 private void restoreHistoryPictureFields(Picture p, Bundle b) { 2374 int sx = b.getInt("scrollX", 0); 2375 int sy = b.getInt("scrollY", 0); 2376 2377 mDrawHistory = true; 2378 mHistoryPicture = p; 2379 2380 setScrollXRaw(sx); 2381 setScrollYRaw(sy); 2382 mZoomManager.restoreZoomState(b); 2383 final float scale = mZoomManager.getScale(); 2384 mHistoryWidth = Math.round(p.getWidth() * scale); 2385 mHistoryHeight = Math.round(p.getHeight() * scale); 2386 2387 invalidate(); 2388 } 2389 2390 /** 2391 * See {@link WebView#restorePicture(Bundle, File)}; 2392 */ 2393 @Override 2394 @Deprecated 2395 public boolean restorePicture(Bundle b, File src) { 2396 if (src == null || b == null) { 2397 return false; 2398 } 2399 if (!src.exists()) { 2400 return false; 2401 } 2402 try { 2403 final FileInputStream in = new FileInputStream(src); 2404 final Bundle copy = new Bundle(b); 2405 new Thread(new Runnable() { 2406 @Override 2407 public void run() { 2408 try { 2409 final Picture p = Picture.createFromStream(in); 2410 if (p != null) { 2411 // Post a runnable on the main thread to update the 2412 // history picture fields. 2413 mPrivateHandler.post(new Runnable() { 2414 @Override 2415 public void run() { 2416 restoreHistoryPictureFields(p, copy); 2417 } 2418 }); 2419 } 2420 } finally { 2421 try { 2422 in.close(); 2423 } catch (Exception e) { 2424 // Nothing we can do now. 2425 } 2426 } 2427 } 2428 }).start(); 2429 } catch (FileNotFoundException e){ 2430 e.printStackTrace(); 2431 } 2432 return true; 2433 } 2434 2435 /** 2436 * Saves the view data to the output stream. The output is highly 2437 * version specific, and may not be able to be loaded by newer versions 2438 * of WebView. 2439 * @param stream The {@link OutputStream} to save to 2440 * @param callback The {@link ValueCallback} to call with the result 2441 */ 2442 public void saveViewState(OutputStream stream, ValueCallback<Boolean> callback) { 2443 if (mWebViewCore == null) { 2444 callback.onReceiveValue(false); 2445 return; 2446 } 2447 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SAVE_VIEW_STATE, 2448 new WebViewCore.SaveViewStateRequest(stream, callback)); 2449 } 2450 2451 /** 2452 * Loads the view data from the input stream. See 2453 * {@link #saveViewState(OutputStream)} for more information. 2454 * @param stream The {@link InputStream} to load from 2455 */ 2456 public void loadViewState(InputStream stream) { 2457 mBlockWebkitViewMessages = true; 2458 new AsyncTask<InputStream, Void, DrawData>() { 2459 2460 @Override 2461 protected DrawData doInBackground(InputStream... params) { 2462 try { 2463 return ViewStateSerializer.deserializeViewState(params[0]); 2464 } catch (IOException e) { 2465 return null; 2466 } 2467 } 2468 2469 @Override 2470 protected void onPostExecute(DrawData draw) { 2471 if (draw == null) { 2472 Log.e(LOGTAG, "Failed to load view state!"); 2473 return; 2474 } 2475 int viewWidth = getViewWidth(); 2476 int viewHeight = getViewHeightWithTitle() - getTitleHeight(); 2477 draw.mViewSize = new Point(viewWidth, viewHeight); 2478 draw.mViewState.mDefaultScale = getDefaultZoomScale(); 2479 mLoadedPicture = draw; 2480 setNewPicture(mLoadedPicture, true); 2481 mLoadedPicture.mViewState = null; 2482 } 2483 2484 }.execute(stream); 2485 } 2486 2487 /** 2488 * Clears the view state set with {@link #loadViewState(InputStream)}. 2489 * This WebView will then switch to showing the content from webkit 2490 */ 2491 public void clearViewState() { 2492 mBlockWebkitViewMessages = false; 2493 mLoadedPicture = null; 2494 invalidate(); 2495 } 2496 2497 /** 2498 * See {@link WebView#restoreState(Bundle)} 2499 */ 2500 @Override 2501 public WebBackForwardList restoreState(Bundle inState) { 2502 WebBackForwardList returnList = null; 2503 if (inState == null) { 2504 return returnList; 2505 } 2506 if (inState.containsKey("index") && inState.containsKey("history")) { 2507 mCertificate = SslCertificate.restoreState( 2508 inState.getBundle("certificate")); 2509 2510 final WebBackForwardList list = mCallbackProxy.getBackForwardList(); 2511 final int index = inState.getInt("index"); 2512 // We can't use a clone of the list because we need to modify the 2513 // shared copy, so synchronize instead to prevent concurrent 2514 // modifications. 2515 synchronized (list) { 2516 final List<byte[]> history = 2517 (List<byte[]>) inState.getSerializable("history"); 2518 final int size = history.size(); 2519 // Check the index bounds so we don't crash in native code while 2520 // restoring the history index. 2521 if (index < 0 || index >= size) { 2522 return null; 2523 } 2524 for (int i = 0; i < size; i++) { 2525 byte[] data = history.remove(0); 2526 if (data == null) { 2527 // If we somehow have null data, we cannot reconstruct 2528 // the item and thus our history list cannot be rebuilt. 2529 return null; 2530 } 2531 WebHistoryItem item = new WebHistoryItem(data); 2532 list.addHistoryItem(item); 2533 } 2534 // Grab the most recent copy to return to the caller. 2535 returnList = copyBackForwardList(); 2536 // Update the copy to have the correct index. 2537 returnList.setCurrentIndex(index); 2538 } 2539 // Restore private browsing setting. 2540 if (inState.getBoolean("privateBrowsingEnabled")) { 2541 getSettings().setPrivateBrowsingEnabled(true); 2542 } 2543 mZoomManager.restoreZoomState(inState); 2544 // Remove all pending messages because we are restoring previous 2545 // state. 2546 mWebViewCore.removeMessages(); 2547 // Send a restore state message. 2548 mWebViewCore.sendMessage(EventHub.RESTORE_STATE, index); 2549 } 2550 return returnList; 2551 } 2552 2553 /** 2554 * See {@link WebView#loadUrl(String, Map)} 2555 */ 2556 @Override 2557 public void loadUrl(String url, Map<String, String> additionalHttpHeaders) { 2558 loadUrlImpl(url, additionalHttpHeaders); 2559 } 2560 2561 private void loadUrlImpl(String url, Map<String, String> extraHeaders) { 2562 switchOutDrawHistory(); 2563 WebViewCore.GetUrlData arg = new WebViewCore.GetUrlData(); 2564 arg.mUrl = url; 2565 arg.mExtraHeaders = extraHeaders; 2566 mWebViewCore.sendMessage(EventHub.LOAD_URL, arg); 2567 clearHelpers(); 2568 } 2569 2570 /** 2571 * See {@link WebView#loadUrl(String)} 2572 */ 2573 @Override 2574 public void loadUrl(String url) { 2575 loadUrlImpl(url); 2576 } 2577 2578 private void loadUrlImpl(String url) { 2579 if (url == null) { 2580 return; 2581 } 2582 loadUrlImpl(url, null); 2583 } 2584 2585 /** 2586 * See {@link WebView#postUrl(String, byte[])} 2587 */ 2588 @Override 2589 public void postUrl(String url, byte[] postData) { 2590 if (URLUtil.isNetworkUrl(url)) { 2591 switchOutDrawHistory(); 2592 WebViewCore.PostUrlData arg = new WebViewCore.PostUrlData(); 2593 arg.mUrl = url; 2594 arg.mPostData = postData; 2595 mWebViewCore.sendMessage(EventHub.POST_URL, arg); 2596 clearHelpers(); 2597 } else { 2598 loadUrlImpl(url); 2599 } 2600 } 2601 2602 /** 2603 * See {@link WebView#loadData(String, String, String)} 2604 */ 2605 @Override 2606 public void loadData(String data, String mimeType, String encoding) { 2607 loadDataImpl(data, mimeType, encoding); 2608 } 2609 2610 private void loadDataImpl(String data, String mimeType, String encoding) { 2611 StringBuilder dataUrl = new StringBuilder("data:"); 2612 dataUrl.append(mimeType); 2613 if ("base64".equals(encoding)) { 2614 dataUrl.append(";base64"); 2615 } 2616 dataUrl.append(","); 2617 dataUrl.append(data); 2618 loadUrlImpl(dataUrl.toString()); 2619 } 2620 2621 /** 2622 * See {@link WebView#loadDataWithBaseURL(String, String, String, String, String)} 2623 */ 2624 @Override 2625 public void loadDataWithBaseURL(String baseUrl, String data, 2626 String mimeType, String encoding, String historyUrl) { 2627 2628 if (baseUrl != null && baseUrl.toLowerCase().startsWith("data:")) { 2629 loadDataImpl(data, mimeType, encoding); 2630 return; 2631 } 2632 switchOutDrawHistory(); 2633 WebViewCore.BaseUrlData arg = new WebViewCore.BaseUrlData(); 2634 arg.mBaseUrl = baseUrl; 2635 arg.mData = data; 2636 arg.mMimeType = mimeType; 2637 arg.mEncoding = encoding; 2638 arg.mHistoryUrl = historyUrl; 2639 mWebViewCore.sendMessage(EventHub.LOAD_DATA, arg); 2640 clearHelpers(); 2641 } 2642 2643 /** 2644 * See {@link WebView#saveWebArchive(String)} 2645 */ 2646 @Override 2647 public void saveWebArchive(String filename) { 2648 saveWebArchiveImpl(filename, false, null); 2649 } 2650 2651 /* package */ static class SaveWebArchiveMessage { 2652 SaveWebArchiveMessage (String basename, boolean autoname, ValueCallback<String> callback) { 2653 mBasename = basename; 2654 mAutoname = autoname; 2655 mCallback = callback; 2656 } 2657 2658 /* package */ final String mBasename; 2659 /* package */ final boolean mAutoname; 2660 /* package */ final ValueCallback<String> mCallback; 2661 /* package */ String mResultFile; 2662 } 2663 2664 /** 2665 * See {@link WebView#saveWebArchive(String, boolean, ValueCallback)} 2666 */ 2667 @Override 2668 public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) { 2669 saveWebArchiveImpl(basename, autoname, callback); 2670 } 2671 2672 private void saveWebArchiveImpl(String basename, boolean autoname, 2673 ValueCallback<String> callback) { 2674 mWebViewCore.sendMessage(EventHub.SAVE_WEBARCHIVE, 2675 new SaveWebArchiveMessage(basename, autoname, callback)); 2676 } 2677 2678 /** 2679 * See {@link WebView#stopLoading()} 2680 */ 2681 @Override 2682 public void stopLoading() { 2683 // TODO: should we clear all the messages in the queue before sending 2684 // STOP_LOADING? 2685 switchOutDrawHistory(); 2686 mWebViewCore.sendMessage(EventHub.STOP_LOADING); 2687 } 2688 2689 /** 2690 * See {@link WebView#reload()} 2691 */ 2692 @Override 2693 public void reload() { 2694 clearHelpers(); 2695 switchOutDrawHistory(); 2696 mWebViewCore.sendMessage(EventHub.RELOAD); 2697 } 2698 2699 /** 2700 * See {@link WebView#canGoBack()} 2701 */ 2702 @Override 2703 public boolean canGoBack() { 2704 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2705 synchronized (l) { 2706 if (l.getClearPending()) { 2707 return false; 2708 } else { 2709 return l.getCurrentIndex() > 0; 2710 } 2711 } 2712 } 2713 2714 /** 2715 * See {@link WebView#goBack()} 2716 */ 2717 @Override 2718 public void goBack() { 2719 goBackOrForwardImpl(-1); 2720 } 2721 2722 /** 2723 * See {@link WebView#canGoForward()} 2724 */ 2725 @Override 2726 public boolean canGoForward() { 2727 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2728 synchronized (l) { 2729 if (l.getClearPending()) { 2730 return false; 2731 } else { 2732 return l.getCurrentIndex() < l.getSize() - 1; 2733 } 2734 } 2735 } 2736 2737 /** 2738 * See {@link WebView#goForward()} 2739 */ 2740 @Override 2741 public void goForward() { 2742 goBackOrForwardImpl(1); 2743 } 2744 2745 /** 2746 * See {@link WebView#canGoBackOrForward(int)} 2747 */ 2748 @Override 2749 public boolean canGoBackOrForward(int steps) { 2750 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 2751 synchronized (l) { 2752 if (l.getClearPending()) { 2753 return false; 2754 } else { 2755 int newIndex = l.getCurrentIndex() + steps; 2756 return newIndex >= 0 && newIndex < l.getSize(); 2757 } 2758 } 2759 } 2760 2761 /** 2762 * See {@link WebView#goBackOrForward(int)} 2763 */ 2764 @Override 2765 public void goBackOrForward(int steps) { 2766 goBackOrForwardImpl(steps); 2767 } 2768 2769 private void goBackOrForwardImpl(int steps) { 2770 goBackOrForward(steps, false); 2771 } 2772 2773 private void goBackOrForward(int steps, boolean ignoreSnapshot) { 2774 if (steps != 0) { 2775 clearHelpers(); 2776 mWebViewCore.sendMessage(EventHub.GO_BACK_FORWARD, steps, 2777 ignoreSnapshot ? 1 : 0); 2778 } 2779 } 2780 2781 /** 2782 * See {@link WebView#isPrivateBrowsingEnabled()} 2783 */ 2784 @Override 2785 public boolean isPrivateBrowsingEnabled() { 2786 return getSettings().isPrivateBrowsingEnabled(); 2787 } 2788 2789 private void startPrivateBrowsing() { 2790 getSettings().setPrivateBrowsingEnabled(true); 2791 } 2792 2793 private boolean extendScroll(int y) { 2794 int finalY = mScroller.getFinalY(); 2795 int newY = pinLocY(finalY + y); 2796 if (newY == finalY) return false; 2797 mScroller.setFinalY(newY); 2798 mScroller.extendDuration(computeDuration(0, y)); 2799 return true; 2800 } 2801 2802 /** 2803 * See {@link WebView#pageUp(boolean)} 2804 */ 2805 @Override 2806 public boolean pageUp(boolean top) { 2807 if (mNativeClass == 0) { 2808 return false; 2809 } 2810 if (top) { 2811 // go to the top of the document 2812 return pinScrollTo(getScrollX(), 0, true, 0); 2813 } 2814 // Page up 2815 int h = getHeight(); 2816 int y; 2817 if (h > 2 * PAGE_SCROLL_OVERLAP) { 2818 y = -h + PAGE_SCROLL_OVERLAP; 2819 } else { 2820 y = -h / 2; 2821 } 2822 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 2823 : extendScroll(y); 2824 } 2825 2826 /** 2827 * See {@link WebView#pageDown(boolean)} 2828 */ 2829 @Override 2830 public boolean pageDown(boolean bottom) { 2831 if (mNativeClass == 0) { 2832 return false; 2833 } 2834 if (bottom) { 2835 return pinScrollTo(getScrollX(), computeRealVerticalScrollRange(), true, 0); 2836 } 2837 // Page down. 2838 int h = getHeight(); 2839 int y; 2840 if (h > 2 * PAGE_SCROLL_OVERLAP) { 2841 y = h - PAGE_SCROLL_OVERLAP; 2842 } else { 2843 y = h / 2; 2844 } 2845 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 2846 : extendScroll(y); 2847 } 2848 2849 /** 2850 * See {@link WebView#clearView()} 2851 */ 2852 @Override 2853 public void clearView() { 2854 mContentWidth = 0; 2855 mContentHeight = 0; 2856 setBaseLayer(0, null, false, false); 2857 mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); 2858 } 2859 2860 /** 2861 * See {@link WebView#capturePicture()} 2862 */ 2863 @Override 2864 public Picture capturePicture() { 2865 if (mNativeClass == 0) return null; 2866 Picture result = new Picture(); 2867 nativeCopyBaseContentToPicture(result); 2868 return result; 2869 } 2870 2871 /** 2872 * See {@link WebView#getScale()} 2873 */ 2874 @Override 2875 public float getScale() { 2876 return mZoomManager.getScale(); 2877 } 2878 2879 /** 2880 * Compute the reading level scale of the WebView 2881 * @param scale The current scale. 2882 * @return The reading level scale. 2883 */ 2884 /*package*/ float computeReadingLevelScale(float scale) { 2885 return mZoomManager.computeReadingLevelScale(scale); 2886 } 2887 2888 /** 2889 * See {@link WebView#setInitialScale(int)} 2890 */ 2891 @Override 2892 public void setInitialScale(int scaleInPercent) { 2893 mZoomManager.setInitialScaleInPercent(scaleInPercent); 2894 } 2895 2896 /** 2897 * See {@link WebView#invokeZoomPicker()} 2898 */ 2899 @Override 2900 public void invokeZoomPicker() { 2901 if (!getSettings().supportZoom()) { 2902 Log.w(LOGTAG, "This WebView doesn't support zoom."); 2903 return; 2904 } 2905 clearHelpers(); 2906 mZoomManager.invokeZoomPicker(); 2907 } 2908 2909 /** 2910 * See {@link WebView#getHitTestResult()} 2911 */ 2912 @Override 2913 public HitTestResult getHitTestResult() { 2914 return mInitialHitTestResult; 2915 } 2916 2917 // No left edge for double-tap zoom alignment 2918 static final int NO_LEFTEDGE = -1; 2919 2920 int getBlockLeftEdge(int x, int y, float readingScale) { 2921 float invReadingScale = 1.0f / readingScale; 2922 int readingWidth = (int) (getViewWidth() * invReadingScale); 2923 int left = NO_LEFTEDGE; 2924 if (mFocusedNode != null) { 2925 final int length = mFocusedNode.mEnclosingParentRects.length; 2926 for (int i = 0; i < length; i++) { 2927 Rect rect = mFocusedNode.mEnclosingParentRects[i]; 2928 if (rect.width() < mFocusedNode.mHitTestSlop) { 2929 // ignore bounding boxes that are too small 2930 continue; 2931 } else if (rect.width() > readingWidth) { 2932 // stop when bounding box doesn't fit the screen width 2933 // at reading scale 2934 break; 2935 } 2936 2937 left = rect.left; 2938 } 2939 } 2940 2941 return left; 2942 } 2943 2944 /** 2945 * See {@link WebView#requestFocusNodeHref(Message)} 2946 */ 2947 @Override 2948 public void requestFocusNodeHref(Message hrefMsg) { 2949 if (hrefMsg == null) { 2950 return; 2951 } 2952 int contentX = viewToContentX(mLastTouchX + getScrollX()); 2953 int contentY = viewToContentY(mLastTouchY + getScrollY()); 2954 if (mFocusedNode != null && mFocusedNode.mHitTestX == contentX 2955 && mFocusedNode.mHitTestY == contentY) { 2956 hrefMsg.getData().putString(FocusNodeHref.URL, mFocusedNode.mLinkUrl); 2957 hrefMsg.getData().putString(FocusNodeHref.TITLE, mFocusedNode.mAnchorText); 2958 hrefMsg.getData().putString(FocusNodeHref.SRC, mFocusedNode.mImageUrl); 2959 hrefMsg.sendToTarget(); 2960 return; 2961 } 2962 mWebViewCore.sendMessage(EventHub.REQUEST_CURSOR_HREF, 2963 contentX, contentY, hrefMsg); 2964 } 2965 2966 /** 2967 * See {@link WebView#requestImageRef(Message)} 2968 */ 2969 @Override 2970 public void requestImageRef(Message msg) { 2971 if (0 == mNativeClass) return; // client isn't initialized 2972 String url = mFocusedNode != null ? mFocusedNode.mImageUrl : null; 2973 Bundle data = msg.getData(); 2974 data.putString("url", url); 2975 msg.setData(data); 2976 msg.sendToTarget(); 2977 } 2978 2979 static int pinLoc(int x, int viewMax, int docMax) { 2980// Log.d(LOGTAG, "-- pinLoc " + x + " " + viewMax + " " + docMax); 2981 if (docMax < viewMax) { // the doc has room on the sides for "blank" 2982 // pin the short document to the top/left of the screen 2983 x = 0; 2984// Log.d(LOGTAG, "--- center " + x); 2985 } else if (x < 0) { 2986 x = 0; 2987// Log.d(LOGTAG, "--- zero"); 2988 } else if (x + viewMax > docMax) { 2989 x = docMax - viewMax; 2990// Log.d(LOGTAG, "--- pin " + x); 2991 } 2992 return x; 2993 } 2994 2995 // Expects x in view coordinates 2996 int pinLocX(int x) { 2997 if (mInOverScrollMode) return x; 2998 return pinLoc(x, getViewWidth(), computeRealHorizontalScrollRange()); 2999 } 3000 3001 // Expects y in view coordinates 3002 int pinLocY(int y) { 3003 if (mInOverScrollMode) return y; 3004 return pinLoc(y, getViewHeightWithTitle(), 3005 computeRealVerticalScrollRange() + getTitleHeight()); 3006 } 3007 3008 /** 3009 * Given a distance in view space, convert it to content space. Note: this 3010 * does not reflect translation, just scaling, so this should not be called 3011 * with coordinates, but should be called for dimensions like width or 3012 * height. 3013 */ 3014 private int viewToContentDimension(int d) { 3015 return Math.round(d * mZoomManager.getInvScale()); 3016 } 3017 3018 /** 3019 * Given an x coordinate in view space, convert it to content space. Also 3020 * may be used for absolute heights. 3021 */ 3022 /*package*/ int viewToContentX(int x) { 3023 return viewToContentDimension(x); 3024 } 3025 3026 /** 3027 * Given a y coordinate in view space, convert it to content space. 3028 * Takes into account the height of the title bar if there is one 3029 * embedded into the WebView. 3030 */ 3031 /*package*/ int viewToContentY(int y) { 3032 return viewToContentDimension(y - getTitleHeight()); 3033 } 3034 3035 /** 3036 * Given a x coordinate in view space, convert it to content space. 3037 * Returns the result as a float. 3038 */ 3039 private float viewToContentXf(int x) { 3040 return x * mZoomManager.getInvScale(); 3041 } 3042 3043 /** 3044 * Given a y coordinate in view space, convert it to content space. 3045 * Takes into account the height of the title bar if there is one 3046 * embedded into the WebView. Returns the result as a float. 3047 */ 3048 private float viewToContentYf(int y) { 3049 return (y - getTitleHeight()) * mZoomManager.getInvScale(); 3050 } 3051 3052 /** 3053 * Given a distance in content space, convert it to view space. Note: this 3054 * does not reflect translation, just scaling, so this should not be called 3055 * with coordinates, but should be called for dimensions like width or 3056 * height. 3057 */ 3058 /*package*/ int contentToViewDimension(int d) { 3059 return Math.round(d * mZoomManager.getScale()); 3060 } 3061 3062 /** 3063 * Given an x coordinate in content space, convert it to view 3064 * space. 3065 */ 3066 /*package*/ int contentToViewX(int x) { 3067 return contentToViewDimension(x); 3068 } 3069 3070 /** 3071 * Given a y coordinate in content space, convert it to view 3072 * space. Takes into account the height of the title bar. 3073 */ 3074 /*package*/ int contentToViewY(int y) { 3075 return contentToViewDimension(y) + getTitleHeight(); 3076 } 3077 3078 private Rect contentToViewRect(Rect x) { 3079 return new Rect(contentToViewX(x.left), contentToViewY(x.top), 3080 contentToViewX(x.right), contentToViewY(x.bottom)); 3081 } 3082 3083 /* To invalidate a rectangle in content coordinates, we need to transform 3084 the rect into view coordinates, so we can then call invalidate(...). 3085 3086 Normally, we would just call contentToView[XY](...), which eventually 3087 calls Math.round(coordinate * mActualScale). However, for invalidates, 3088 we need to account for the slop that occurs with antialiasing. To 3089 address that, we are a little more liberal in the size of the rect that 3090 we invalidate. 3091 3092 This liberal calculation calls floor() for the top/left, and ceil() for 3093 the bottom/right coordinates. This catches the possible extra pixels of 3094 antialiasing that we might have missed with just round(). 3095 */ 3096 3097 // Called by JNI to invalidate the View, given rectangle coordinates in 3098 // content space 3099 private void viewInvalidate(int l, int t, int r, int b) { 3100 final float scale = mZoomManager.getScale(); 3101 final int dy = getTitleHeight(); 3102 mWebView.invalidate((int)Math.floor(l * scale), 3103 (int)Math.floor(t * scale) + dy, 3104 (int)Math.ceil(r * scale), 3105 (int)Math.ceil(b * scale) + dy); 3106 } 3107 3108 // Called by JNI to invalidate the View after a delay, given rectangle 3109 // coordinates in content space 3110 private void viewInvalidateDelayed(long delay, int l, int t, int r, int b) { 3111 final float scale = mZoomManager.getScale(); 3112 final int dy = getTitleHeight(); 3113 mWebView.postInvalidateDelayed(delay, 3114 (int)Math.floor(l * scale), 3115 (int)Math.floor(t * scale) + dy, 3116 (int)Math.ceil(r * scale), 3117 (int)Math.ceil(b * scale) + dy); 3118 } 3119 3120 private void invalidateContentRect(Rect r) { 3121 viewInvalidate(r.left, r.top, r.right, r.bottom); 3122 } 3123 3124 // stop the scroll animation, and don't let a subsequent fling add 3125 // to the existing velocity 3126 private void abortAnimation() { 3127 mScroller.abortAnimation(); 3128 mLastVelocity = 0; 3129 } 3130 3131 /* call from webcoreview.draw(), so we're still executing in the UI thread 3132 */ 3133 private void recordNewContentSize(int w, int h, boolean updateLayout) { 3134 3135 // premature data from webkit, ignore 3136 if ((w | h) == 0) { 3137 return; 3138 } 3139 3140 // don't abort a scroll animation if we didn't change anything 3141 if (mContentWidth != w || mContentHeight != h) { 3142 // record new dimensions 3143 mContentWidth = w; 3144 mContentHeight = h; 3145 // If history Picture is drawn, don't update scroll. They will be 3146 // updated when we get out of that mode. 3147 if (!mDrawHistory) { 3148 // repin our scroll, taking into account the new content size 3149 updateScrollCoordinates(pinLocX(getScrollX()), pinLocY(getScrollY())); 3150 if (!mScroller.isFinished()) { 3151 // We are in the middle of a scroll. Repin the final scroll 3152 // position. 3153 mScroller.setFinalX(pinLocX(mScroller.getFinalX())); 3154 mScroller.setFinalY(pinLocY(mScroller.getFinalY())); 3155 } 3156 } 3157 } 3158 contentSizeChanged(updateLayout); 3159 } 3160 3161 // Used to avoid sending many visible rect messages. 3162 private Rect mLastVisibleRectSent = new Rect(); 3163 private Rect mLastGlobalRect = new Rect(); 3164 private Rect mVisibleRect = new Rect(); 3165 private Rect mGlobalVisibleRect = new Rect(); 3166 private Point mScrollOffset = new Point(); 3167 3168 Rect sendOurVisibleRect() { 3169 if (mZoomManager.isPreventingWebkitUpdates()) return mLastVisibleRectSent; 3170 calcOurContentVisibleRect(mVisibleRect); 3171 // Rect.equals() checks for null input. 3172 if (!mVisibleRect.equals(mLastVisibleRectSent)) { 3173 if (!mBlockWebkitViewMessages) { 3174 mScrollOffset.set(mVisibleRect.left, mVisibleRect.top); 3175 mWebViewCore.removeMessages(EventHub.SET_SCROLL_OFFSET); 3176 mWebViewCore.sendMessage(EventHub.SET_SCROLL_OFFSET, 3177 mSendScrollEvent ? 1 : 0, mScrollOffset); 3178 } 3179 mLastVisibleRectSent.set(mVisibleRect); 3180 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 3181 } 3182 if (mWebView.getGlobalVisibleRect(mGlobalVisibleRect) 3183 && !mGlobalVisibleRect.equals(mLastGlobalRect)) { 3184 if (DebugFlags.WEB_VIEW) { 3185 Log.v(LOGTAG, "sendOurVisibleRect=(" + mGlobalVisibleRect.left + "," 3186 + mGlobalVisibleRect.top + ",r=" + mGlobalVisibleRect.right + ",b=" 3187 + mGlobalVisibleRect.bottom); 3188 } 3189 // TODO: the global offset is only used by windowRect() 3190 // in ChromeClientAndroid ; other clients such as touch 3191 // and mouse events could return view + screen relative points. 3192 if (!mBlockWebkitViewMessages) { 3193 mWebViewCore.sendMessage(EventHub.SET_GLOBAL_BOUNDS, mGlobalVisibleRect); 3194 } 3195 mLastGlobalRect.set(mGlobalVisibleRect); 3196 } 3197 return mVisibleRect; 3198 } 3199 3200 private Point mGlobalVisibleOffset = new Point(); 3201 // Sets r to be the visible rectangle of our webview in view coordinates 3202 private void calcOurVisibleRect(Rect r) { 3203 mWebView.getGlobalVisibleRect(r, mGlobalVisibleOffset); 3204 r.offset(-mGlobalVisibleOffset.x, -mGlobalVisibleOffset.y); 3205 } 3206 3207 // Sets r to be our visible rectangle in content coordinates 3208 private void calcOurContentVisibleRect(Rect r) { 3209 calcOurVisibleRect(r); 3210 r.left = viewToContentX(r.left); 3211 // viewToContentY will remove the total height of the title bar. Add 3212 // the visible height back in to account for the fact that if the title 3213 // bar is partially visible, the part of the visible rect which is 3214 // displaying our content is displaced by that amount. 3215 r.top = viewToContentY(r.top + getVisibleTitleHeightImpl()); 3216 r.right = viewToContentX(r.right); 3217 r.bottom = viewToContentY(r.bottom); 3218 } 3219 3220 private Rect mContentVisibleRect = new Rect(); 3221 // Sets r to be our visible rectangle in content coordinates. We use this 3222 // method on the native side to compute the position of the fixed layers. 3223 // Uses floating coordinates (necessary to correctly place elements when 3224 // the scale factor is not 1) 3225 private void calcOurContentVisibleRectF(RectF r) { 3226 calcOurVisibleRect(mContentVisibleRect); 3227 r.left = viewToContentXf(mContentVisibleRect.left); 3228 // viewToContentY will remove the total height of the title bar. Add 3229 // the visible height back in to account for the fact that if the title 3230 // bar is partially visible, the part of the visible rect which is 3231 // displaying our content is displaced by that amount. 3232 r.top = viewToContentYf(mContentVisibleRect.top + getVisibleTitleHeightImpl()); 3233 r.right = viewToContentXf(mContentVisibleRect.right); 3234 r.bottom = viewToContentYf(mContentVisibleRect.bottom); 3235 } 3236 3237 static class ViewSizeData { 3238 int mWidth; 3239 int mHeight; 3240 float mHeightWidthRatio; 3241 int mActualViewHeight; 3242 int mTextWrapWidth; 3243 int mAnchorX; 3244 int mAnchorY; 3245 float mScale; 3246 boolean mIgnoreHeight; 3247 } 3248 3249 /** 3250 * Compute unzoomed width and height, and if they differ from the last 3251 * values we sent, send them to webkit (to be used as new viewport) 3252 * 3253 * @param force ensures that the message is sent to webkit even if the width 3254 * or height has not changed since the last message 3255 * 3256 * @return true if new values were sent 3257 */ 3258 boolean sendViewSizeZoom(boolean force) { 3259 if (mBlockWebkitViewMessages) return false; 3260 if (mZoomManager.isPreventingWebkitUpdates()) return false; 3261 3262 int viewWidth = getViewWidth(); 3263 int newWidth = Math.round(viewWidth * mZoomManager.getInvScale()); 3264 // This height could be fixed and be different from actual visible height. 3265 int viewHeight = getViewHeightWithTitle() - getTitleHeight(); 3266 int newHeight = Math.round(viewHeight * mZoomManager.getInvScale()); 3267 // Make the ratio more accurate than (newHeight / newWidth), since the 3268 // latter both are calculated and rounded. 3269 float heightWidthRatio = (float) viewHeight / viewWidth; 3270 /* 3271 * Because the native side may have already done a layout before the 3272 * View system was able to measure us, we have to send a height of 0 to 3273 * remove excess whitespace when we grow our width. This will trigger a 3274 * layout and a change in content size. This content size change will 3275 * mean that contentSizeChanged will either call this method directly or 3276 * indirectly from onSizeChanged. 3277 */ 3278 if (newWidth > mLastWidthSent && mWrapContent) { 3279 newHeight = 0; 3280 heightWidthRatio = 0; 3281 } 3282 // Actual visible content height. 3283 int actualViewHeight = Math.round(getViewHeight() * mZoomManager.getInvScale()); 3284 // Avoid sending another message if the dimensions have not changed. 3285 if (newWidth != mLastWidthSent || newHeight != mLastHeightSent || force || 3286 actualViewHeight != mLastActualHeightSent) { 3287 ViewSizeData data = new ViewSizeData(); 3288 data.mWidth = newWidth; 3289 data.mHeight = newHeight; 3290 data.mHeightWidthRatio = heightWidthRatio; 3291 data.mActualViewHeight = actualViewHeight; 3292 data.mTextWrapWidth = Math.round(viewWidth / mZoomManager.getTextWrapScale()); 3293 data.mScale = mZoomManager.getScale(); 3294 data.mIgnoreHeight = mZoomManager.isFixedLengthAnimationInProgress() 3295 && !mHeightCanMeasure; 3296 data.mAnchorX = mZoomManager.getDocumentAnchorX(); 3297 data.mAnchorY = mZoomManager.getDocumentAnchorY(); 3298 mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, data); 3299 mLastWidthSent = newWidth; 3300 mLastHeightSent = newHeight; 3301 mLastActualHeightSent = actualViewHeight; 3302 mZoomManager.clearDocumentAnchor(); 3303 return true; 3304 } 3305 return false; 3306 } 3307 3308 /** 3309 * Update the double-tap zoom. 3310 */ 3311 /* package */ void updateDoubleTapZoom(int doubleTapZoom) { 3312 mZoomManager.updateDoubleTapZoom(doubleTapZoom); 3313 } 3314 3315 private int computeRealHorizontalScrollRange() { 3316 if (mDrawHistory) { 3317 return mHistoryWidth; 3318 } else { 3319 // to avoid rounding error caused unnecessary scrollbar, use floor 3320 return (int) Math.floor(mContentWidth * mZoomManager.getScale()); 3321 } 3322 } 3323 3324 @Override 3325 public int computeHorizontalScrollRange() { 3326 int range = computeRealHorizontalScrollRange(); 3327 3328 // Adjust reported range if overscrolled to compress the scroll bars 3329 final int scrollX = getScrollX(); 3330 final int overscrollRight = computeMaxScrollX(); 3331 if (scrollX < 0) { 3332 range -= scrollX; 3333 } else if (scrollX > overscrollRight) { 3334 range += scrollX - overscrollRight; 3335 } 3336 3337 return range; 3338 } 3339 3340 @Override 3341 public int computeHorizontalScrollOffset() { 3342 return Math.max(getScrollX(), 0); 3343 } 3344 3345 private int computeRealVerticalScrollRange() { 3346 if (mDrawHistory) { 3347 return mHistoryHeight; 3348 } else { 3349 // to avoid rounding error caused unnecessary scrollbar, use floor 3350 return (int) Math.floor(mContentHeight * mZoomManager.getScale()); 3351 } 3352 } 3353 3354 @Override 3355 public int computeVerticalScrollRange() { 3356 int range = computeRealVerticalScrollRange(); 3357 3358 // Adjust reported range if overscrolled to compress the scroll bars 3359 final int scrollY = getScrollY(); 3360 final int overscrollBottom = computeMaxScrollY(); 3361 if (scrollY < 0) { 3362 range -= scrollY; 3363 } else if (scrollY > overscrollBottom) { 3364 range += scrollY - overscrollBottom; 3365 } 3366 3367 return range; 3368 } 3369 3370 @Override 3371 public int computeVerticalScrollOffset() { 3372 return Math.max(getScrollY() - getTitleHeight(), 0); 3373 } 3374 3375 @Override 3376 public int computeVerticalScrollExtent() { 3377 return getViewHeight(); 3378 } 3379 3380 @Override 3381 public void onDrawVerticalScrollBar(Canvas canvas, 3382 Drawable scrollBar, 3383 int l, int t, int r, int b) { 3384 if (getScrollY() < 0) { 3385 t -= getScrollY(); 3386 } 3387 scrollBar.setBounds(l, t + getVisibleTitleHeightImpl(), r, b); 3388 scrollBar.draw(canvas); 3389 } 3390 3391 @Override 3392 public void onOverScrolled(int scrollX, int scrollY, boolean clampedX, 3393 boolean clampedY) { 3394 // Special-case layer scrolling so that we do not trigger normal scroll 3395 // updating. 3396 if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3397 scrollEditText(scrollX, scrollY); 3398 return; 3399 } 3400 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3401 scrollLayerTo(scrollX, scrollY); 3402 return; 3403 } 3404 mInOverScrollMode = false; 3405 int maxX = computeMaxScrollX(); 3406 int maxY = computeMaxScrollY(); 3407 if (maxX == 0) { 3408 // do not over scroll x if the page just fits the screen 3409 scrollX = pinLocX(scrollX); 3410 } else if (scrollX < 0 || scrollX > maxX) { 3411 mInOverScrollMode = true; 3412 } 3413 if (scrollY < 0 || scrollY > maxY) { 3414 mInOverScrollMode = true; 3415 } 3416 3417 int oldX = getScrollX(); 3418 int oldY = getScrollY(); 3419 3420 mWebViewPrivate.super_scrollTo(scrollX, scrollY); 3421 3422 if (mOverScrollGlow != null) { 3423 mOverScrollGlow.pullGlow(getScrollX(), getScrollY(), oldX, oldY, maxX, maxY); 3424 } 3425 } 3426 3427 /** 3428 * See {@link WebView#getUrl()} 3429 */ 3430 @Override 3431 public String getUrl() { 3432 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3433 return h != null ? h.getUrl() : null; 3434 } 3435 3436 /** 3437 * See {@link WebView#getOriginalUrl()} 3438 */ 3439 @Override 3440 public String getOriginalUrl() { 3441 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3442 return h != null ? h.getOriginalUrl() : null; 3443 } 3444 3445 /** 3446 * See {@link WebView#getTitle()} 3447 */ 3448 @Override 3449 public String getTitle() { 3450 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3451 return h != null ? h.getTitle() : null; 3452 } 3453 3454 /** 3455 * See {@link WebView#getFavicon()} 3456 */ 3457 @Override 3458 public Bitmap getFavicon() { 3459 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3460 return h != null ? h.getFavicon() : null; 3461 } 3462 3463 /** 3464 * See {@link WebView#getTouchIconUrl()} 3465 */ 3466 @Override 3467 public String getTouchIconUrl() { 3468 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 3469 return h != null ? h.getTouchIconUrl() : null; 3470 } 3471 3472 /** 3473 * See {@link WebView#getProgress()} 3474 */ 3475 @Override 3476 public int getProgress() { 3477 return mCallbackProxy.getProgress(); 3478 } 3479 3480 /** 3481 * See {@link WebView#getContentHeight()} 3482 */ 3483 @Override 3484 public int getContentHeight() { 3485 return mContentHeight; 3486 } 3487 3488 /** 3489 * See {@link WebView#getContentWidth()} 3490 */ 3491 @Override 3492 public int getContentWidth() { 3493 return mContentWidth; 3494 } 3495 3496 public int getPageBackgroundColor() { 3497 return nativeGetBackgroundColor(); 3498 } 3499 3500 /** 3501 * See {@link WebView#pauseTimers()} 3502 */ 3503 @Override 3504 public void pauseTimers() { 3505 mWebViewCore.sendMessage(EventHub.PAUSE_TIMERS); 3506 } 3507 3508 /** 3509 * See {@link WebView#resumeTimers()} 3510 */ 3511 @Override 3512 public void resumeTimers() { 3513 mWebViewCore.sendMessage(EventHub.RESUME_TIMERS); 3514 } 3515 3516 /** 3517 * See {@link WebView#onPause()} 3518 */ 3519 @Override 3520 public void onPause() { 3521 if (!mIsPaused) { 3522 mIsPaused = true; 3523 mWebViewCore.sendMessage(EventHub.ON_PAUSE); 3524 // We want to pause the current playing video when switching out 3525 // from the current WebView/tab. 3526 if (mHTML5VideoViewProxy != null) { 3527 mHTML5VideoViewProxy.pauseAndDispatch(); 3528 } 3529 if (mNativeClass != 0) { 3530 nativeSetPauseDrawing(mNativeClass, true); 3531 } 3532 3533 cancelSelectDialog(); 3534 WebCoreThreadWatchdog.pause(); 3535 } 3536 } 3537 3538 @Override 3539 public void onWindowVisibilityChanged(int visibility) { 3540 updateDrawingState(); 3541 } 3542 3543 void updateDrawingState() { 3544 if (mNativeClass == 0 || mIsPaused) return; 3545 if (mWebView.getWindowVisibility() != View.VISIBLE) { 3546 nativeSetPauseDrawing(mNativeClass, true); 3547 } else if (mWebView.getVisibility() != View.VISIBLE) { 3548 nativeSetPauseDrawing(mNativeClass, true); 3549 } else { 3550 nativeSetPauseDrawing(mNativeClass, false); 3551 } 3552 } 3553 3554 /** 3555 * See {@link WebView#onResume()} 3556 */ 3557 @Override 3558 public void onResume() { 3559 if (mIsPaused) { 3560 mIsPaused = false; 3561 mWebViewCore.sendMessage(EventHub.ON_RESUME); 3562 if (mNativeClass != 0) { 3563 nativeSetPauseDrawing(mNativeClass, false); 3564 } 3565 } 3566 // Ensure that the watchdog has a currently valid Context to be able to display 3567 // a prompt dialog. For example, if the Activity was finished whilst the WebCore 3568 // thread was blocked and the Activity is started again, we may reuse the blocked 3569 // thread, but we'll have a new Activity. 3570 WebCoreThreadWatchdog.updateContext(mContext); 3571 // We get a call to onResume for new WebViews (i.e. mIsPaused will be false). We need 3572 // to ensure that the Watchdog thread is running for the new WebView, so call 3573 // it outside the if block above. 3574 WebCoreThreadWatchdog.resume(); 3575 } 3576 3577 /** 3578 * See {@link WebView#isPaused()} 3579 */ 3580 @Override 3581 public boolean isPaused() { 3582 return mIsPaused; 3583 } 3584 3585 /** 3586 * See {@link WebView#freeMemory()} 3587 */ 3588 @Override 3589 public void freeMemory() { 3590 mWebViewCore.sendMessage(EventHub.FREE_MEMORY); 3591 } 3592 3593 /** 3594 * See {@link WebView#clearCache(boolean)} 3595 */ 3596 @Override 3597 public void clearCache(boolean includeDiskFiles) { 3598 // Note: this really needs to be a static method as it clears cache for all 3599 // WebView. But we need mWebViewCore to send message to WebCore thread, so 3600 // we can't make this static. 3601 mWebViewCore.sendMessage(EventHub.CLEAR_CACHE, 3602 includeDiskFiles ? 1 : 0, 0); 3603 } 3604 3605 /** 3606 * See {@link WebView#clearFormData()} 3607 */ 3608 @Override 3609 public void clearFormData() { 3610 if (mAutoCompletePopup != null) { 3611 mAutoCompletePopup.clearAdapter(); 3612 } 3613 } 3614 3615 /** 3616 * See {@link WebView#clearHistory()} 3617 */ 3618 @Override 3619 public void clearHistory() { 3620 mCallbackProxy.getBackForwardList().setClearPending(); 3621 mWebViewCore.sendMessage(EventHub.CLEAR_HISTORY); 3622 } 3623 3624 /** 3625 * See {@link WebView#clearSslPreferences()} 3626 */ 3627 @Override 3628 public void clearSslPreferences() { 3629 mWebViewCore.sendMessage(EventHub.CLEAR_SSL_PREF_TABLE); 3630 } 3631 3632 /** 3633 * See {@link WebView#copyBackForwardList()} 3634 */ 3635 @Override 3636 public WebBackForwardList copyBackForwardList() { 3637 return mCallbackProxy.getBackForwardList().clone(); 3638 } 3639 3640 /** 3641 * See {@link WebView#setFindListener(WebView.FindListener)}. 3642 * @hide 3643 */ 3644 public void setFindListener(WebView.FindListener listener) { 3645 mFindListener = listener; 3646 } 3647 3648 /** 3649 * See {@link WebView#findNext(boolean)} 3650 */ 3651 @Override 3652 public void findNext(boolean forward) { 3653 if (0 == mNativeClass) return; // client isn't initialized 3654 if (mFindRequest != null) { 3655 mWebViewCore.sendMessage(EventHub.FIND_NEXT, forward ? 1 : 0, mFindRequest); 3656 } 3657 } 3658 3659 /** 3660 * See {@link WebView#findAll(String)} 3661 */ 3662 @Override 3663 public int findAll(String find) { 3664 return findAllBody(find, false); 3665 } 3666 3667 public void findAllAsync(String find) { 3668 findAllBody(find, true); 3669 } 3670 3671 private int findAllBody(String find, boolean isAsync) { 3672 if (0 == mNativeClass) return 0; // client isn't initialized 3673 mFindRequest = null; 3674 if (find == null) return 0; 3675 mWebViewCore.removeMessages(EventHub.FIND_ALL); 3676 mFindRequest = new WebViewCore.FindAllRequest(find); 3677 if (isAsync) { 3678 mWebViewCore.sendMessage(EventHub.FIND_ALL, mFindRequest); 3679 return 0; // no need to wait for response 3680 } 3681 synchronized(mFindRequest) { 3682 try { 3683 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.FIND_ALL, mFindRequest); 3684 while (mFindRequest.mMatchCount == -1) { 3685 mFindRequest.wait(); 3686 } 3687 } 3688 catch (InterruptedException e) { 3689 return 0; 3690 } 3691 return mFindRequest.mMatchCount; 3692 } 3693 } 3694 3695 /** 3696 * Start an ActionMode for finding text in this WebView. Only works if this 3697 * WebView is attached to the view system. 3698 * @param text If non-null, will be the initial text to search for. 3699 * Otherwise, the last String searched for in this WebView will 3700 * be used to start. 3701 * @param showIme If true, show the IME, assuming the user will begin typing. 3702 * If false and text is non-null, perform a find all. 3703 * @return boolean True if the find dialog is shown, false otherwise. 3704 */ 3705 public boolean showFindDialog(String text, boolean showIme) { 3706 FindActionModeCallback callback = new FindActionModeCallback(mContext); 3707 if (mWebView.getParent() == null || mWebView.startActionMode(callback) == null) { 3708 // Could not start the action mode, so end Find on page 3709 return false; 3710 } 3711 mCachedOverlappingActionModeHeight = -1; 3712 mFindCallback = callback; 3713 setFindIsUp(true); 3714 mFindCallback.setWebView(this); 3715 if (showIme) { 3716 mFindCallback.showSoftInput(); 3717 } else if (text != null) { 3718 mFindCallback.setText(text); 3719 mFindCallback.findAll(); 3720 return true; 3721 } 3722 if (text == null) { 3723 text = mFindRequest == null ? null : mFindRequest.mSearchText; 3724 } 3725 if (text != null) { 3726 mFindCallback.setText(text); 3727 mFindCallback.findAll(); 3728 } 3729 return true; 3730 } 3731 3732 /** 3733 * Keep track of the find callback so that we can remove its titlebar if 3734 * necessary. 3735 */ 3736 private FindActionModeCallback mFindCallback; 3737 3738 /** 3739 * Toggle whether the find dialog is showing, for both native and Java. 3740 */ 3741 private void setFindIsUp(boolean isUp) { 3742 mFindIsUp = isUp; 3743 } 3744 3745 // Used to know whether the find dialog is open. Affects whether 3746 // or not we draw the highlights for matches. 3747 private boolean mFindIsUp; 3748 3749 // Keep track of the last find request sent. 3750 private WebViewCore.FindAllRequest mFindRequest = null; 3751 3752 /** 3753 * Return the first substring consisting of the address of a physical 3754 * location. Currently, only addresses in the United States are detected, 3755 * and consist of: 3756 * - a house number 3757 * - a street name 3758 * - a street type (Road, Circle, etc), either spelled out or abbreviated 3759 * - a city name 3760 * - a state or territory, either spelled out or two-letter abbr. 3761 * - an optional 5 digit or 9 digit zip code. 3762 * 3763 * All names must be correctly capitalized, and the zip code, if present, 3764 * must be valid for the state. The street type must be a standard USPS 3765 * spelling or abbreviation. The state or territory must also be spelled 3766 * or abbreviated using USPS standards. The house number may not exceed 3767 * five digits. 3768 * @param addr The string to search for addresses. 3769 * 3770 * @return the address, or if no address is found, return null. 3771 */ 3772 public static String findAddress(String addr) { 3773 return findAddress(addr, false); 3774 } 3775 3776 /** 3777 * Return the first substring consisting of the address of a physical 3778 * location. Currently, only addresses in the United States are detected, 3779 * and consist of: 3780 * - a house number 3781 * - a street name 3782 * - a street type (Road, Circle, etc), either spelled out or abbreviated 3783 * - a city name 3784 * - a state or territory, either spelled out or two-letter abbr. 3785 * - an optional 5 digit or 9 digit zip code. 3786 * 3787 * Names are optionally capitalized, and the zip code, if present, 3788 * must be valid for the state. The street type must be a standard USPS 3789 * spelling or abbreviation. The state or territory must also be spelled 3790 * or abbreviated using USPS standards. The house number may not exceed 3791 * five digits. 3792 * @param addr The string to search for addresses. 3793 * @param caseInsensitive addr Set to true to make search ignore case. 3794 * 3795 * @return the address, or if no address is found, return null. 3796 */ 3797 public static String findAddress(String addr, boolean caseInsensitive) { 3798 return WebViewCore.nativeFindAddress(addr, caseInsensitive); 3799 } 3800 3801 /** 3802 * See {@link WebView#clearMatches()} 3803 */ 3804 @Override 3805 public void clearMatches() { 3806 if (mNativeClass == 0) 3807 return; 3808 mWebViewCore.removeMessages(EventHub.FIND_ALL); 3809 mWebViewCore.sendMessage(EventHub.FIND_ALL, null); 3810 } 3811 3812 3813 /** 3814 * Called when the find ActionMode ends. 3815 */ 3816 void notifyFindDialogDismissed() { 3817 mFindCallback = null; 3818 mCachedOverlappingActionModeHeight = -1; 3819 if (mWebViewCore == null) { 3820 return; 3821 } 3822 clearMatches(); 3823 setFindIsUp(false); 3824 // Now that the dialog has been removed, ensure that we scroll to a 3825 // location that is not beyond the end of the page. 3826 pinScrollTo(getScrollX(), getScrollY(), false, 0); 3827 invalidate(); 3828 } 3829 3830 /** 3831 * See {@link WebView#documentHasImages(Message)} 3832 */ 3833 @Override 3834 public void documentHasImages(Message response) { 3835 if (response == null) { 3836 return; 3837 } 3838 mWebViewCore.sendMessage(EventHub.DOC_HAS_IMAGES, response); 3839 } 3840 3841 /** 3842 * Request the scroller to abort any ongoing animation 3843 */ 3844 public void stopScroll() { 3845 mScroller.forceFinished(true); 3846 mLastVelocity = 0; 3847 } 3848 3849 @Override 3850 public void computeScroll() { 3851 if (mScroller.computeScrollOffset()) { 3852 int oldX = getScrollX(); 3853 int oldY = getScrollY(); 3854 int x = mScroller.getCurrX(); 3855 int y = mScroller.getCurrY(); 3856 invalidate(); // So we draw again 3857 3858 if (!mScroller.isFinished()) { 3859 int rangeX = computeMaxScrollX(); 3860 int rangeY = computeMaxScrollY(); 3861 int overflingDistance = mOverflingDistance; 3862 3863 // Use the layer's scroll data if needed. 3864 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3865 oldX = mScrollingLayerRect.left; 3866 oldY = mScrollingLayerRect.top; 3867 rangeX = mScrollingLayerRect.right; 3868 rangeY = mScrollingLayerRect.bottom; 3869 // No overscrolling for layers. 3870 overflingDistance = 0; 3871 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3872 oldX = getTextScrollX(); 3873 oldY = getTextScrollY(); 3874 rangeX = getMaxTextScrollX(); 3875 rangeY = getMaxTextScrollY(); 3876 overflingDistance = 0; 3877 } 3878 3879 mWebViewPrivate.overScrollBy(x - oldX, y - oldY, oldX, oldY, 3880 rangeX, rangeY, 3881 overflingDistance, overflingDistance, false); 3882 3883 if (mOverScrollGlow != null) { 3884 mOverScrollGlow.absorbGlow(x, y, oldX, oldY, rangeX, rangeY); 3885 } 3886 } else { 3887 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3888 // Update the layer position instead of WebView. 3889 scrollLayerTo(x, y); 3890 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 3891 scrollEditText(x, y); 3892 } else { 3893 setScrollXRaw(x); 3894 setScrollYRaw(y); 3895 } 3896 abortAnimation(); 3897 nativeSetIsScrolling(false); 3898 if (!mBlockWebkitViewMessages) { 3899 WebViewCore.resumePriority(); 3900 if (!mSelectingText) { 3901 WebViewCore.resumeUpdatePicture(mWebViewCore); 3902 } 3903 } 3904 if (oldX != getScrollX() || oldY != getScrollY()) { 3905 sendOurVisibleRect(); 3906 } 3907 } 3908 } else { 3909 mWebViewPrivate.super_computeScroll(); 3910 } 3911 } 3912 3913 private void scrollLayerTo(int x, int y) { 3914 int dx = mScrollingLayerRect.left - x; 3915 int dy = mScrollingLayerRect.top - y; 3916 if (dx == 0 && dy == 0) { 3917 return; 3918 } 3919 if (mSelectingText) { 3920 if (mSelectCursorBaseLayerId == mCurrentScrollingLayerId) { 3921 mSelectCursorBase.offset(dx, dy); 3922 mSelectCursorBaseTextQuad.offset(dx, dy); 3923 } 3924 if (mSelectCursorExtentLayerId == mCurrentScrollingLayerId) { 3925 mSelectCursorExtent.offset(dx, dy); 3926 mSelectCursorExtentTextQuad.offset(dx, dy); 3927 } 3928 } 3929 if (mAutoCompletePopup != null && 3930 mCurrentScrollingLayerId == mEditTextLayerId) { 3931 mEditTextContentBounds.offset(dx, dy); 3932 mAutoCompletePopup.resetRect(); 3933 } 3934 nativeScrollLayer(mCurrentScrollingLayerId, x, y); 3935 mScrollingLayerRect.left = x; 3936 mScrollingLayerRect.top = y; 3937 mWebViewCore.sendMessage(WebViewCore.EventHub.SCROLL_LAYER, mCurrentScrollingLayerId, 3938 mScrollingLayerRect); 3939 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), getScrollX(), getScrollY()); 3940 invalidate(); 3941 } 3942 3943 private static int computeDuration(int dx, int dy) { 3944 int distance = Math.max(Math.abs(dx), Math.abs(dy)); 3945 int duration = distance * 1000 / STD_SPEED; 3946 return Math.min(duration, MAX_DURATION); 3947 } 3948 3949 // helper to pin the scrollBy parameters (already in view coordinates) 3950 // returns true if the scroll was changed 3951 private boolean pinScrollBy(int dx, int dy, boolean animate, int animationDuration) { 3952 return pinScrollTo(getScrollX() + dx, getScrollY() + dy, animate, animationDuration); 3953 } 3954 // helper to pin the scrollTo parameters (already in view coordinates) 3955 // returns true if the scroll was changed 3956 private boolean pinScrollTo(int x, int y, boolean animate, int animationDuration) { 3957 abortAnimation(); 3958 x = pinLocX(x); 3959 y = pinLocY(y); 3960 int dx = x - getScrollX(); 3961 int dy = y - getScrollY(); 3962 3963 if ((dx | dy) == 0) { 3964 return false; 3965 } 3966 if (animate) { 3967 // Log.d(LOGTAG, "startScroll: " + dx + " " + dy); 3968 mScroller.startScroll(getScrollX(), getScrollY(), dx, dy, 3969 animationDuration > 0 ? animationDuration : computeDuration(dx, dy)); 3970 mWebViewPrivate.awakenScrollBars(mScroller.getDuration()); 3971 invalidate(); 3972 } else { 3973 mWebView.scrollTo(x, y); 3974 } 3975 return true; 3976 } 3977 3978 // Scale from content to view coordinates, and pin. 3979 // Also called by jni webview.cpp 3980 private boolean setContentScrollBy(int cx, int cy, boolean animate) { 3981 if (mDrawHistory) { 3982 // disallow WebView to change the scroll position as History Picture 3983 // is used in the view system. 3984 // TODO: as we switchOutDrawHistory when trackball or navigation 3985 // keys are hit, this should be safe. Right? 3986 return false; 3987 } 3988 cx = contentToViewDimension(cx); 3989 cy = contentToViewDimension(cy); 3990 if (mHeightCanMeasure) { 3991 // move our visible rect according to scroll request 3992 if (cy != 0) { 3993 Rect tempRect = new Rect(); 3994 calcOurVisibleRect(tempRect); 3995 tempRect.offset(cx, cy); 3996 mWebView.requestRectangleOnScreen(tempRect); 3997 } 3998 // FIXME: We scroll horizontally no matter what because currently 3999 // ScrollView and ListView will not scroll horizontally. 4000 // FIXME: Why do we only scroll horizontally if there is no 4001 // vertical scroll? 4002// Log.d(LOGTAG, "setContentScrollBy cy=" + cy); 4003 return cy == 0 && cx != 0 && pinScrollBy(cx, 0, animate, 0); 4004 } else { 4005 return pinScrollBy(cx, cy, animate, 0); 4006 } 4007 } 4008 4009 /** 4010 * Called by CallbackProxy when the page starts loading. 4011 * @param url The URL of the page which has started loading. 4012 */ 4013 /* package */ void onPageStarted(String url) { 4014 // every time we start a new page, we want to reset the 4015 // WebView certificate: if the new site is secure, we 4016 // will reload it and get a new certificate set; 4017 // if the new site is not secure, the certificate must be 4018 // null, and that will be the case 4019 mWebView.setCertificate(null); 4020 4021 // reset the flag since we set to true in if need after 4022 // loading is see onPageFinished(Url) 4023 mAccessibilityScriptInjected = false; 4024 } 4025 4026 /** 4027 * Called by CallbackProxy when the page finishes loading. 4028 * @param url The URL of the page which has finished loading. 4029 */ 4030 /* package */ void onPageFinished(String url) { 4031 mZoomManager.onPageFinished(url); 4032 injectAccessibilityForUrl(url); 4033 } 4034 4035 /** 4036 * This method injects accessibility in the loaded document if accessibility 4037 * is enabled. If JavaScript is enabled we try to inject a URL specific script. 4038 * If no URL specific script is found or JavaScript is disabled we fallback to 4039 * the default {@link AccessibilityInjector} implementation. 4040 * </p> 4041 * If the URL has the "axs" paramter set to 1 it has already done the 4042 * script injection so we do nothing. If the parameter is set to 0 4043 * the URL opts out accessibility script injection so we fall back to 4044 * the default {@link AccessibilityInjector}. 4045 * </p> 4046 * Note: If the user has not opted-in the accessibility script injection no scripts 4047 * are injected rather the default {@link AccessibilityInjector} implementation 4048 * is used. 4049 * 4050 * @param url The URL loaded by this {@link WebView}. 4051 */ 4052 private void injectAccessibilityForUrl(String url) { 4053 if (mWebViewCore == null) { 4054 return; 4055 } 4056 AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(mContext); 4057 4058 if (!accessibilityManager.isEnabled()) { 4059 // it is possible that accessibility was turned off between reloads 4060 ensureAccessibilityScriptInjectorInstance(false); 4061 return; 4062 } 4063 4064 if (!getSettings().getJavaScriptEnabled()) { 4065 // no JS so we fallback to the basic buil-in support 4066 ensureAccessibilityScriptInjectorInstance(true); 4067 return; 4068 } 4069 4070 // check the URL "axs" parameter to choose appropriate action 4071 int axsParameterValue = getAxsUrlParameterValue(url); 4072 if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED) { 4073 boolean onDeviceScriptInjectionEnabled = (Settings.Secure.getInt(mContext 4074 .getContentResolver(), Settings.Secure.ACCESSIBILITY_SCRIPT_INJECTION, 0) == 1); 4075 if (onDeviceScriptInjectionEnabled) { 4076 ensureAccessibilityScriptInjectorInstance(false); 4077 // neither script injected nor script injection opted out => we inject 4078 mWebView.loadUrl(getScreenReaderInjectingJs()); 4079 // TODO: Set this flag after successfull script injection. Maybe upon injection 4080 // the chooser should update the meta tag and we check it to declare success 4081 mAccessibilityScriptInjected = true; 4082 } else { 4083 // injection disabled so we fallback to the basic built-in support 4084 ensureAccessibilityScriptInjectorInstance(true); 4085 } 4086 } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT) { 4087 // injection opted out so we fallback to the basic buil-in support 4088 ensureAccessibilityScriptInjectorInstance(true); 4089 } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED) { 4090 ensureAccessibilityScriptInjectorInstance(false); 4091 // the URL provides accessibility but we still need to add our generic script 4092 mWebView.loadUrl(getScreenReaderInjectingJs()); 4093 } else { 4094 Log.e(LOGTAG, "Unknown URL value for the \"axs\" URL parameter: " + axsParameterValue); 4095 } 4096 } 4097 4098 /** 4099 * Ensures the instance of the {@link AccessibilityInjector} to be present ot not. 4100 * 4101 * @param present True to ensure an insance, false to ensure no instance. 4102 */ 4103 private void ensureAccessibilityScriptInjectorInstance(boolean present) { 4104 if (present) { 4105 if (mAccessibilityInjector == null) { 4106 mAccessibilityInjector = new AccessibilityInjector(this); 4107 } 4108 } else { 4109 mAccessibilityInjector = null; 4110 } 4111 } 4112 4113 /** 4114 * Gets JavaScript that injects a screen-reader. 4115 * 4116 * @return The JavaScript snippet. 4117 */ 4118 private String getScreenReaderInjectingJs() { 4119 String screenReaderUrl = Settings.Secure.getString(mContext.getContentResolver(), 4120 Settings.Secure.ACCESSIBILITY_SCREEN_READER_URL); 4121 return String.format(ACCESSIBILITY_SCREEN_READER_JAVASCRIPT_TEMPLATE, screenReaderUrl); 4122 } 4123 4124 /** 4125 * Gets the "axs" URL parameter value. 4126 * 4127 * @param url A url to fetch the paramter from. 4128 * @return The parameter value if such, -1 otherwise. 4129 */ 4130 private int getAxsUrlParameterValue(String url) { 4131 if (mMatchAxsUrlParameterPattern == null) { 4132 mMatchAxsUrlParameterPattern = Pattern.compile(PATTERN_MATCH_AXS_URL_PARAMETER); 4133 } 4134 Matcher matcher = mMatchAxsUrlParameterPattern.matcher(url); 4135 if (matcher.find()) { 4136 String keyValuePair = url.substring(matcher.start(), matcher.end()); 4137 return Integer.parseInt(keyValuePair.split("=")[1]); 4138 } 4139 return -1; 4140 } 4141 4142 // scale from content to view coordinates, and pin 4143 private void contentScrollTo(int cx, int cy, boolean animate) { 4144 if (mDrawHistory) { 4145 // disallow WebView to change the scroll position as History Picture 4146 // is used in the view system. 4147 return; 4148 } 4149 int vx = contentToViewX(cx); 4150 int vy = contentToViewY(cy); 4151 pinScrollTo(vx, vy, animate, 0); 4152 } 4153 4154 /** 4155 * These are from webkit, and are in content coordinate system (unzoomed) 4156 */ 4157 private void contentSizeChanged(boolean updateLayout) { 4158 // suppress 0,0 since we usually see real dimensions soon after 4159 // this avoids drawing the prev content in a funny place. If we find a 4160 // way to consolidate these notifications, this check may become 4161 // obsolete 4162 if ((mContentWidth | mContentHeight) == 0) { 4163 return; 4164 } 4165 4166 if (mHeightCanMeasure) { 4167 if (mWebView.getMeasuredHeight() != contentToViewDimension(mContentHeight) 4168 || updateLayout) { 4169 mWebView.requestLayout(); 4170 } 4171 } else if (mWidthCanMeasure) { 4172 if (mWebView.getMeasuredWidth() != contentToViewDimension(mContentWidth) 4173 || updateLayout) { 4174 mWebView.requestLayout(); 4175 } 4176 } else { 4177 // If we don't request a layout, try to send our view size to the 4178 // native side to ensure that WebCore has the correct dimensions. 4179 sendViewSizeZoom(false); 4180 } 4181 } 4182 4183 /** 4184 * See {@link WebView#setWebViewClient(WebViewClient)} 4185 */ 4186 @Override 4187 public void setWebViewClient(WebViewClient client) { 4188 mCallbackProxy.setWebViewClient(client); 4189 } 4190 4191 /** 4192 * Gets the WebViewClient 4193 * @return the current WebViewClient instance. 4194 * 4195 * This is an implementation detail. 4196 */ 4197 public WebViewClient getWebViewClient() { 4198 return mCallbackProxy.getWebViewClient(); 4199 } 4200 4201 /** 4202 * See {@link WebView#setDownloadListener(DownloadListener)} 4203 */ 4204 @Override 4205 public void setDownloadListener(DownloadListener listener) { 4206 mCallbackProxy.setDownloadListener(listener); 4207 } 4208 4209 /** 4210 * See {@link WebView#setWebChromeClient(WebChromeClient)} 4211 */ 4212 @Override 4213 public void setWebChromeClient(WebChromeClient client) { 4214 mCallbackProxy.setWebChromeClient(client); 4215 } 4216 4217 /** 4218 * Gets the chrome handler. 4219 * @return the current WebChromeClient instance. 4220 * 4221 * This is an implementation detail. 4222 */ 4223 public WebChromeClient getWebChromeClient() { 4224 return mCallbackProxy.getWebChromeClient(); 4225 } 4226 4227 /** 4228 * Set the back/forward list client. This is an implementation of 4229 * WebBackForwardListClient for handling new items and changes in the 4230 * history index. 4231 * @param client An implementation of WebBackForwardListClient. 4232 */ 4233 public void setWebBackForwardListClient(WebBackForwardListClient client) { 4234 mCallbackProxy.setWebBackForwardListClient(client); 4235 } 4236 4237 /** 4238 * Gets the WebBackForwardListClient. 4239 */ 4240 public WebBackForwardListClient getWebBackForwardListClient() { 4241 return mCallbackProxy.getWebBackForwardListClient(); 4242 } 4243 4244 /** 4245 * See {@link WebView#setPictureListener(PictureListener)} 4246 */ 4247 @Override 4248 @Deprecated 4249 public void setPictureListener(PictureListener listener) { 4250 mPictureListener = listener; 4251 } 4252 4253 /* FIXME: Debug only! Remove for SDK! */ 4254 public void externalRepresentation(Message callback) { 4255 mWebViewCore.sendMessage(EventHub.REQUEST_EXT_REPRESENTATION, callback); 4256 } 4257 4258 /* FIXME: Debug only! Remove for SDK! */ 4259 public void documentAsText(Message callback) { 4260 mWebViewCore.sendMessage(EventHub.REQUEST_DOC_AS_TEXT, callback); 4261 } 4262 4263 /** 4264 * See {@link WebView#addJavascriptInterface(Object, String)} 4265 */ 4266 @Override 4267 public void addJavascriptInterface(Object object, String name) { 4268 if (object == null) { 4269 return; 4270 } 4271 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 4272 arg.mObject = object; 4273 arg.mInterfaceName = name; 4274 mWebViewCore.sendMessage(EventHub.ADD_JS_INTERFACE, arg); 4275 } 4276 4277 /** 4278 * See {@link WebView#removeJavascriptInterface(String)} 4279 */ 4280 @Override 4281 public void removeJavascriptInterface(String interfaceName) { 4282 if (mWebViewCore != null) { 4283 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 4284 arg.mInterfaceName = interfaceName; 4285 mWebViewCore.sendMessage(EventHub.REMOVE_JS_INTERFACE, arg); 4286 } 4287 } 4288 4289 /** 4290 * See {@link WebView#getSettings()} 4291 * Note this returns WebSettingsClassic, a sub-class of WebSettings, which can be used 4292 * to access extension APIs. 4293 */ 4294 @Override 4295 public WebSettingsClassic getSettings() { 4296 return (mWebViewCore != null) ? mWebViewCore.getSettings() : null; 4297 } 4298 4299 /** 4300 * See {@link WebView#getPluginList()} 4301 */ 4302 @Deprecated 4303 public static synchronized PluginList getPluginList() { 4304 return new PluginList(); 4305 } 4306 4307 /** 4308 * See {@link WebView#refreshPlugins(boolean)} 4309 */ 4310 @Deprecated 4311 public void refreshPlugins(boolean reloadOpenPages) { 4312 } 4313 4314 //------------------------------------------------------------------------- 4315 // Override View methods 4316 //------------------------------------------------------------------------- 4317 4318 @Override 4319 protected void finalize() throws Throwable { 4320 try { 4321 if (mNativeClass != 0) { 4322 mPrivateHandler.post(new Runnable() { 4323 @Override 4324 public void run() { 4325 destroy(); 4326 } 4327 }); 4328 } 4329 } finally { 4330 super.finalize(); 4331 } 4332 } 4333 4334 private void drawContent(Canvas canvas) { 4335 if (mDrawHistory) { 4336 canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); 4337 canvas.drawPicture(mHistoryPicture); 4338 return; 4339 } 4340 if (mNativeClass == 0) return; 4341 4342 boolean animateZoom = mZoomManager.isFixedLengthAnimationInProgress(); 4343 boolean animateScroll = ((!mScroller.isFinished() 4344 || mVelocityTracker != null) 4345 && (mTouchMode != TOUCH_DRAG_MODE || 4346 mHeldMotionless != MOTIONLESS_TRUE)); 4347 if (mTouchMode == TOUCH_DRAG_MODE) { 4348 if (mHeldMotionless == MOTIONLESS_PENDING) { 4349 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 4350 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 4351 mHeldMotionless = MOTIONLESS_FALSE; 4352 } 4353 if (mHeldMotionless == MOTIONLESS_FALSE) { 4354 mPrivateHandler.sendMessageDelayed(mPrivateHandler 4355 .obtainMessage(DRAG_HELD_MOTIONLESS), MOTIONLESS_TIME); 4356 mPrivateHandler.sendMessageDelayed(mPrivateHandler 4357 .obtainMessage(AWAKEN_SCROLL_BARS), 4358 ViewConfiguration.getScrollDefaultDelay()); 4359 mHeldMotionless = MOTIONLESS_PENDING; 4360 } 4361 } 4362 int saveCount = canvas.save(); 4363 if (animateZoom) { 4364 mZoomManager.animateZoom(canvas); 4365 } else if (!canvas.isHardwareAccelerated()) { 4366 canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); 4367 } 4368 4369 boolean UIAnimationsRunning = false; 4370 // Currently for each draw we compute the animation values; 4371 // We may in the future decide to do that independently. 4372 if (mNativeClass != 0 && !canvas.isHardwareAccelerated() 4373 && nativeEvaluateLayersAnimations(mNativeClass)) { 4374 UIAnimationsRunning = true; 4375 // If we have unfinished (or unstarted) animations, 4376 // we ask for a repaint. We only need to do this in software 4377 // rendering (with hardware rendering we already have a different 4378 // method of requesting a repaint) 4379 mWebViewCore.sendMessage(EventHub.NOTIFY_ANIMATION_STARTED); 4380 invalidate(); 4381 } 4382 4383 // decide which adornments to draw 4384 int extras = DRAW_EXTRAS_NONE; 4385 if (!mFindIsUp && mSelectingText) { 4386 extras = DRAW_EXTRAS_SELECTION; 4387 } 4388 4389 calcOurContentVisibleRectF(mVisibleContentRect); 4390 if (canvas.isHardwareAccelerated()) { 4391 Rect glRectViewport = mGLViewportEmpty ? null : mGLRectViewport; 4392 Rect viewRectViewport = mGLViewportEmpty ? null : mViewRectViewport; 4393 4394 int functor = nativeGetDrawGLFunction(mNativeClass, glRectViewport, 4395 viewRectViewport, mVisibleContentRect, getScale(), extras); 4396 ((HardwareCanvas) canvas).callDrawGLFunction(functor); 4397 if (mHardwareAccelSkia != getSettings().getHardwareAccelSkiaEnabled()) { 4398 mHardwareAccelSkia = getSettings().getHardwareAccelSkiaEnabled(); 4399 nativeUseHardwareAccelSkia(mHardwareAccelSkia); 4400 } 4401 4402 } else { 4403 DrawFilter df = null; 4404 if (mZoomManager.isZoomAnimating() || UIAnimationsRunning) { 4405 df = mZoomFilter; 4406 } else if (animateScroll) { 4407 df = mScrollFilter; 4408 } 4409 canvas.setDrawFilter(df); 4410 // XXX: Revisit splitting content. Right now it causes a 4411 // synchronization problem with layers. 4412 int content = nativeDraw(canvas, mVisibleContentRect, mBackgroundColor, 4413 extras, false); 4414 canvas.setDrawFilter(null); 4415 if (!mBlockWebkitViewMessages && content != 0) { 4416 mWebViewCore.sendMessage(EventHub.SPLIT_PICTURE_SET, content, 0); 4417 } 4418 } 4419 4420 canvas.restoreToCount(saveCount); 4421 if (mSelectingText) { 4422 drawTextSelectionHandles(canvas); 4423 } 4424 4425 if (extras == DRAW_EXTRAS_CURSOR_RING) { 4426 if (mTouchMode == TOUCH_SHORTPRESS_START_MODE) { 4427 mTouchMode = TOUCH_SHORTPRESS_MODE; 4428 } 4429 } 4430 } 4431 4432 /** 4433 * Draw the background when beyond bounds 4434 * @param canvas Canvas to draw into 4435 */ 4436 private void drawOverScrollBackground(Canvas canvas) { 4437 if (mOverScrollBackground == null) { 4438 mOverScrollBackground = new Paint(); 4439 Bitmap bm = BitmapFactory.decodeResource( 4440 mContext.getResources(), 4441 com.android.internal.R.drawable.status_bar_background); 4442 mOverScrollBackground.setShader(new BitmapShader(bm, 4443 Shader.TileMode.REPEAT, Shader.TileMode.REPEAT)); 4444 mOverScrollBorder = new Paint(); 4445 mOverScrollBorder.setStyle(Paint.Style.STROKE); 4446 mOverScrollBorder.setStrokeWidth(0); 4447 mOverScrollBorder.setColor(0xffbbbbbb); 4448 } 4449 4450 int top = 0; 4451 int right = computeRealHorizontalScrollRange(); 4452 int bottom = top + computeRealVerticalScrollRange(); 4453 // first draw the background and anchor to the top of the view 4454 canvas.save(); 4455 canvas.translate(getScrollX(), getScrollY()); 4456 canvas.clipRect(-getScrollX(), top - getScrollY(), right - getScrollX(), bottom 4457 - getScrollY(), Region.Op.DIFFERENCE); 4458 canvas.drawPaint(mOverScrollBackground); 4459 canvas.restore(); 4460 // then draw the border 4461 canvas.drawRect(-1, top - 1, right, bottom, mOverScrollBorder); 4462 // next clip the region for the content 4463 canvas.clipRect(0, top, right, bottom); 4464 } 4465 4466 @Override 4467 public void onDraw(Canvas canvas) { 4468 if (inFullScreenMode()) { 4469 return; // no need to draw anything if we aren't visible. 4470 } 4471 // if mNativeClass is 0, the WebView is either destroyed or not 4472 // initialized. In either case, just draw the background color and return 4473 if (mNativeClass == 0) { 4474 canvas.drawColor(mBackgroundColor); 4475 return; 4476 } 4477 4478 // if both mContentWidth and mContentHeight are 0, it means there is no 4479 // valid Picture passed to WebView yet. This can happen when WebView 4480 // just starts. Draw the background and return. 4481 if ((mContentWidth | mContentHeight) == 0 && mHistoryPicture == null) { 4482 canvas.drawColor(mBackgroundColor); 4483 return; 4484 } 4485 4486 if (canvas.isHardwareAccelerated()) { 4487 mZoomManager.setHardwareAccelerated(); 4488 } else { 4489 mWebViewCore.resumeWebKitDraw(); 4490 } 4491 4492 int saveCount = canvas.save(); 4493 if (mInOverScrollMode && !getSettings() 4494 .getUseWebViewBackgroundForOverscrollBackground()) { 4495 drawOverScrollBackground(canvas); 4496 } 4497 4498 canvas.translate(0, getTitleHeight()); 4499 drawContent(canvas); 4500 canvas.restoreToCount(saveCount); 4501 4502 if (AUTO_REDRAW_HACK && mAutoRedraw) { 4503 invalidate(); 4504 } 4505 mWebViewCore.signalRepaintDone(); 4506 4507 if (mOverScrollGlow != null && mOverScrollGlow.drawEdgeGlows(canvas)) { 4508 invalidate(); 4509 } 4510 4511 if (mFocusTransition != null) { 4512 mFocusTransition.draw(canvas); 4513 } else if (shouldDrawHighlightRect()) { 4514 RegionIterator iter = new RegionIterator(mTouchHighlightRegion); 4515 Rect r = new Rect(); 4516 while (iter.next(r)) { 4517 canvas.drawRect(r, mTouchHightlightPaint); 4518 } 4519 } 4520 if (DEBUG_TOUCH_HIGHLIGHT) { 4521 if (getSettings().getNavDump()) { 4522 if ((mTouchHighlightX | mTouchHighlightY) != 0) { 4523 if (mTouchCrossHairColor == null) { 4524 mTouchCrossHairColor = new Paint(); 4525 mTouchCrossHairColor.setColor(Color.RED); 4526 } 4527 canvas.drawLine(mTouchHighlightX - mNavSlop, 4528 mTouchHighlightY - mNavSlop, mTouchHighlightX 4529 + mNavSlop + 1, mTouchHighlightY + mNavSlop 4530 + 1, mTouchCrossHairColor); 4531 canvas.drawLine(mTouchHighlightX + mNavSlop + 1, 4532 mTouchHighlightY - mNavSlop, mTouchHighlightX 4533 - mNavSlop, 4534 mTouchHighlightY + mNavSlop + 1, 4535 mTouchCrossHairColor); 4536 } 4537 } 4538 } 4539 } 4540 4541 private void removeTouchHighlight() { 4542 mWebViewCore.removeMessages(EventHub.HIT_TEST); 4543 mPrivateHandler.removeMessages(HIT_TEST_RESULT); 4544 setTouchHighlightRects(null); 4545 } 4546 4547 @Override 4548 public void setLayoutParams(ViewGroup.LayoutParams params) { 4549 if (params.height == AbsoluteLayout.LayoutParams.WRAP_CONTENT) { 4550 mWrapContent = true; 4551 } 4552 mWebViewPrivate.super_setLayoutParams(params); 4553 } 4554 4555 @Override 4556 public boolean performLongClick() { 4557 // performLongClick() is the result of a delayed message. If we switch 4558 // to windows overview, the WebView will be temporarily removed from the 4559 // view system. In that case, do nothing. 4560 if (mWebView.getParent() == null) return false; 4561 4562 // A multi-finger gesture can look like a long press; make sure we don't take 4563 // long press actions if we're scaling. 4564 final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); 4565 if (detector != null && detector.isInProgress()) { 4566 return false; 4567 } 4568 4569 if (mSelectingText) return false; // long click does nothing on selection 4570 /* if long click brings up a context menu, the super function 4571 * returns true and we're done. Otherwise, nothing happened when 4572 * the user clicked. */ 4573 if (mWebViewPrivate.super_performLongClick()) { 4574 return true; 4575 } 4576 /* In the case where the application hasn't already handled the long 4577 * click action, look for a word under the click. If one is found, 4578 * animate the text selection into view. 4579 * FIXME: no animation code yet */ 4580 final boolean isSelecting = selectText(); 4581 if (isSelecting) { 4582 mWebView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 4583 } else if (focusCandidateIsEditableText()) { 4584 mSelectCallback = new SelectActionModeCallback(); 4585 mSelectCallback.setWebView(this); 4586 mSelectCallback.setTextSelected(false); 4587 mWebView.startActionMode(mSelectCallback); 4588 } 4589 return isSelecting; 4590 } 4591 4592 /** 4593 * Select the word at the last click point. 4594 * 4595 * This is an implementation detail. 4596 */ 4597 public boolean selectText() { 4598 int x = viewToContentX(mLastTouchX + getScrollX()); 4599 int y = viewToContentY(mLastTouchY + getScrollY()); 4600 return selectText(x, y); 4601 } 4602 4603 /** 4604 * Select the word at the indicated content coordinates. 4605 */ 4606 boolean selectText(int x, int y) { 4607 if (mWebViewCore == null) { 4608 return false; 4609 } 4610 mWebViewCore.sendMessage(EventHub.SELECT_WORD_AT, x, y); 4611 return true; 4612 } 4613 4614 private int mOrientation = Configuration.ORIENTATION_UNDEFINED; 4615 4616 @Override 4617 public void onConfigurationChanged(Configuration newConfig) { 4618 mCachedOverlappingActionModeHeight = -1; 4619 if (mSelectingText && mOrientation != newConfig.orientation) { 4620 selectionDone(); 4621 } 4622 mOrientation = newConfig.orientation; 4623 if (mWebViewCore != null && !mBlockWebkitViewMessages) { 4624 mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); 4625 } 4626 } 4627 4628 /** 4629 * Keep track of the Callback so we can end its ActionMode or remove its 4630 * titlebar. 4631 */ 4632 private SelectActionModeCallback mSelectCallback; 4633 4634 void setBaseLayer(int layer, Region invalRegion, boolean showVisualIndicator, 4635 boolean isPictureAfterFirstLayout) { 4636 if (mNativeClass == 0) 4637 return; 4638 boolean queueFull; 4639 queueFull = nativeSetBaseLayer(mNativeClass, layer, invalRegion, 4640 showVisualIndicator, isPictureAfterFirstLayout); 4641 4642 if (queueFull) { 4643 mWebViewCore.pauseWebKitDraw(); 4644 } else { 4645 mWebViewCore.resumeWebKitDraw(); 4646 } 4647 4648 if (mHTML5VideoViewProxy != null) { 4649 mHTML5VideoViewProxy.setBaseLayer(layer); 4650 } 4651 } 4652 4653 int getBaseLayer() { 4654 if (mNativeClass == 0) { 4655 return 0; 4656 } 4657 return nativeGetBaseLayer(); 4658 } 4659 4660 private void onZoomAnimationStart() { 4661 } 4662 4663 private void onZoomAnimationEnd() { 4664 mPrivateHandler.sendEmptyMessage(RELOCATE_AUTO_COMPLETE_POPUP); 4665 } 4666 4667 void onFixedLengthZoomAnimationStart() { 4668 WebViewCore.pauseUpdatePicture(getWebViewCore()); 4669 onZoomAnimationStart(); 4670 } 4671 4672 void onFixedLengthZoomAnimationEnd() { 4673 if (!mBlockWebkitViewMessages && !mSelectingText) { 4674 WebViewCore.resumeUpdatePicture(mWebViewCore); 4675 } 4676 onZoomAnimationEnd(); 4677 } 4678 4679 private static final int ZOOM_BITS = Paint.FILTER_BITMAP_FLAG | 4680 Paint.DITHER_FLAG | 4681 Paint.SUBPIXEL_TEXT_FLAG; 4682 private static final int SCROLL_BITS = Paint.FILTER_BITMAP_FLAG | 4683 Paint.DITHER_FLAG; 4684 4685 private final DrawFilter mZoomFilter = 4686 new PaintFlagsDrawFilter(ZOOM_BITS, Paint.LINEAR_TEXT_FLAG); 4687 // If we need to trade better quality for speed, set mScrollFilter to null 4688 private final DrawFilter mScrollFilter = 4689 new PaintFlagsDrawFilter(SCROLL_BITS, 0); 4690 4691 private void ensureSelectionHandles() { 4692 if (mSelectHandleCenter == null) { 4693 mSelectHandleCenter = mContext.getResources().getDrawable( 4694 com.android.internal.R.drawable.text_select_handle_middle); 4695 mSelectHandleLeft = mContext.getResources().getDrawable( 4696 com.android.internal.R.drawable.text_select_handle_left); 4697 mSelectHandleRight = mContext.getResources().getDrawable( 4698 com.android.internal.R.drawable.text_select_handle_right); 4699 mSelectHandleCenterOffset = new Point(0, 4700 -mSelectHandleCenter.getIntrinsicHeight()); 4701 mSelectHandleLeftOffset = new Point(0, 4702 -mSelectHandleLeft.getIntrinsicHeight()); 4703 mSelectHandleRightOffset = new Point( 4704 -mSelectHandleLeft.getIntrinsicWidth() / 2, 4705 -mSelectHandleRight.getIntrinsicHeight()); 4706 } 4707 } 4708 4709 private void drawTextSelectionHandles(Canvas canvas) { 4710 ensureSelectionHandles(); 4711 int[] handles = new int[4]; 4712 getSelectionHandles(handles); 4713 int start_x = contentToViewDimension(handles[0]); 4714 int start_y = contentToViewDimension(handles[1]); 4715 int end_x = contentToViewDimension(handles[2]); 4716 int end_y = contentToViewDimension(handles[3]); 4717 4718 if (mIsCaretSelection) { 4719 // Caret handle is centered 4720 start_x -= (mSelectHandleCenter.getIntrinsicWidth() / 2); 4721 mSelectHandleCenter.setBounds(start_x, start_y, 4722 start_x + mSelectHandleCenter.getIntrinsicWidth(), 4723 start_y + mSelectHandleCenter.getIntrinsicHeight()); 4724 mSelectHandleCenter.draw(canvas); 4725 } else { 4726 // Magic formula copied from TextView 4727 start_x -= (mSelectHandleLeft.getIntrinsicWidth() * 3) / 4; 4728 mSelectHandleLeft.setBounds(start_x, start_y, 4729 start_x + mSelectHandleLeft.getIntrinsicWidth(), 4730 start_y + mSelectHandleLeft.getIntrinsicHeight()); 4731 end_x -= mSelectHandleRight.getIntrinsicWidth() / 4; 4732 mSelectHandleRight.setBounds(end_x, end_y, 4733 end_x + mSelectHandleRight.getIntrinsicWidth(), 4734 end_y + mSelectHandleRight.getIntrinsicHeight()); 4735 mSelectHandleLeft.draw(canvas); 4736 mSelectHandleRight.draw(canvas); 4737 } 4738 } 4739 4740 /** 4741 * Takes an int[4] array as an output param with the values being 4742 * startX, startY, endX, endY 4743 */ 4744 private void getSelectionHandles(int[] handles) { 4745 handles[0] = mSelectCursorBase.x; 4746 handles[1] = mSelectCursorBase.y; 4747 handles[2] = mSelectCursorExtent.x; 4748 handles[3] = mSelectCursorExtent.y; 4749 if (!nativeIsBaseFirst(mNativeClass)) { 4750 int swap = handles[0]; 4751 handles[0] = handles[2]; 4752 handles[2] = swap; 4753 swap = handles[1]; 4754 handles[1] = handles[3]; 4755 handles[3] = swap; 4756 } 4757 } 4758 4759 // draw history 4760 private boolean mDrawHistory = false; 4761 private Picture mHistoryPicture = null; 4762 private int mHistoryWidth = 0; 4763 private int mHistoryHeight = 0; 4764 4765 // Only check the flag, can be called from WebCore thread 4766 boolean drawHistory() { 4767 return mDrawHistory; 4768 } 4769 4770 int getHistoryPictureWidth() { 4771 return (mHistoryPicture != null) ? mHistoryPicture.getWidth() : 0; 4772 } 4773 4774 // Should only be called in UI thread 4775 void switchOutDrawHistory() { 4776 if (null == mWebViewCore) return; // CallbackProxy may trigger this 4777 if (mDrawHistory && (getProgress() == 100 || nativeHasContent())) { 4778 mDrawHistory = false; 4779 mHistoryPicture = null; 4780 invalidate(); 4781 int oldScrollX = getScrollX(); 4782 int oldScrollY = getScrollY(); 4783 setScrollXRaw(pinLocX(getScrollX())); 4784 setScrollYRaw(pinLocY(getScrollY())); 4785 if (oldScrollX != getScrollX() || oldScrollY != getScrollY()) { 4786 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), oldScrollX, oldScrollY); 4787 } else { 4788 sendOurVisibleRect(); 4789 } 4790 } 4791 } 4792 4793 /** 4794 * Delete text from start to end in the focused textfield. If there is no 4795 * focus, or if start == end, silently fail. If start and end are out of 4796 * order, swap them. 4797 * @param start Beginning of selection to delete. 4798 * @param end End of selection to delete. 4799 */ 4800 /* package */ void deleteSelection(int start, int end) { 4801 mTextGeneration++; 4802 WebViewCore.TextSelectionData data 4803 = new WebViewCore.TextSelectionData(start, end, 0); 4804 mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, mTextGeneration, 0, 4805 data); 4806 } 4807 4808 /** 4809 * Set the selection to (start, end) in the focused textfield. If start and 4810 * end are out of order, swap them. 4811 * @param start Beginning of selection. 4812 * @param end End of selection. 4813 */ 4814 /* package */ void setSelection(int start, int end) { 4815 if (mWebViewCore != null) { 4816 mWebViewCore.sendMessage(EventHub.SET_SELECTION, start, end); 4817 } 4818 } 4819 4820 @Override 4821 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4822 if (mInputConnection == null) { 4823 mInputConnection = new WebViewInputConnection(); 4824 mAutoCompletePopup = new AutoCompletePopup(mContext, this, 4825 mInputConnection); 4826 } 4827 mInputConnection.setupEditorInfo(outAttrs); 4828 return mInputConnection; 4829 } 4830 4831 private void relocateAutoCompletePopup() { 4832 if (mAutoCompletePopup != null) { 4833 mAutoCompletePopup.resetRect(); 4834 mAutoCompletePopup.setText(mInputConnection.getEditable()); 4835 } 4836 } 4837 4838 /** 4839 * Called in response to a message from webkit telling us that the soft 4840 * keyboard should be launched. 4841 */ 4842 private void displaySoftKeyboard(boolean isTextView) { 4843 InputMethodManager imm = (InputMethodManager) 4844 mContext.getSystemService(Context.INPUT_METHOD_SERVICE); 4845 4846 // bring it back to the default level scale so that user can enter text 4847 boolean zoom = mZoomManager.getScale() < mZoomManager.getDefaultScale(); 4848 if (zoom) { 4849 mZoomManager.setZoomCenter(mLastTouchX, mLastTouchY); 4850 mZoomManager.setZoomScale(mZoomManager.getDefaultScale(), false); 4851 } 4852 // Used by plugins and contentEditable. 4853 // Also used if the navigation cache is out of date, and 4854 // does not recognize that a textfield is in focus. In that 4855 // case, use WebView as the targeted view. 4856 // see http://b/issue?id=2457459 4857 imm.showSoftInput(mWebView, 0); 4858 } 4859 4860 // Called by WebKit to instruct the UI to hide the keyboard 4861 private void hideSoftKeyboard() { 4862 InputMethodManager imm = InputMethodManager.peekInstance(); 4863 if (imm != null && (imm.isActive(mWebView))) { 4864 imm.hideSoftInputFromWindow(mWebView.getWindowToken(), 0); 4865 } 4866 } 4867 4868 /** 4869 * Called by AutoCompletePopup to find saved form data associated with the 4870 * textfield 4871 * @param name Name of the textfield. 4872 * @param nodePointer Pointer to the node of the textfield, so it can be 4873 * compared to the currently focused textfield when the data is 4874 * retrieved. 4875 * @param autoFillable true if WebKit has determined this field is part of 4876 * a form that can be auto filled. 4877 * @param autoComplete true if the attribute "autocomplete" is set to true 4878 * on the textfield. 4879 */ 4880 /* package */ void requestFormData(String name, int nodePointer, 4881 boolean autoFillable, boolean autoComplete) { 4882 if (mWebViewCore.getSettings().getSaveFormData()) { 4883 Message update = mPrivateHandler.obtainMessage(REQUEST_FORM_DATA); 4884 update.arg1 = nodePointer; 4885 RequestFormData updater = new RequestFormData(name, getUrl(), 4886 update, autoFillable, autoComplete); 4887 Thread t = new Thread(updater); 4888 t.start(); 4889 } 4890 } 4891 4892 /* 4893 * This class requests an Adapter for the AutoCompletePopup which shows past 4894 * entries stored in the database. It is a Runnable so that it can be done 4895 * in its own thread, without slowing down the UI. 4896 */ 4897 private class RequestFormData implements Runnable { 4898 private String mName; 4899 private String mUrl; 4900 private Message mUpdateMessage; 4901 private boolean mAutoFillable; 4902 private boolean mAutoComplete; 4903 private WebSettingsClassic mWebSettings; 4904 4905 public RequestFormData(String name, String url, Message msg, 4906 boolean autoFillable, boolean autoComplete) { 4907 mName = name; 4908 mUrl = WebTextView.urlForAutoCompleteData(url); 4909 mUpdateMessage = msg; 4910 mAutoFillable = autoFillable; 4911 mAutoComplete = autoComplete; 4912 mWebSettings = getSettings(); 4913 } 4914 4915 @Override 4916 public void run() { 4917 ArrayList<String> pastEntries = new ArrayList<String>(); 4918 4919 if (mAutoFillable) { 4920 // Note that code inside the adapter click handler in AutoCompletePopup depends 4921 // on the AutoFill item being at the top of the drop down list. If you change 4922 // the order, make sure to do it there too! 4923 if (mWebSettings != null && mWebSettings.getAutoFillProfile() != null) { 4924 pastEntries.add(mWebView.getResources().getText( 4925 com.android.internal.R.string.autofill_this_form).toString() + 4926 " " + 4927 mAutoFillData.getPreviewString()); 4928 mAutoCompletePopup.setIsAutoFillProfileSet(true); 4929 } else { 4930 // There is no autofill profile set up yet, so add an option that 4931 // will invite the user to set their profile up. 4932 pastEntries.add(mWebView.getResources().getText( 4933 com.android.internal.R.string.setup_autofill).toString()); 4934 mAutoCompletePopup.setIsAutoFillProfileSet(false); 4935 } 4936 } 4937 4938 if (mAutoComplete) { 4939 pastEntries.addAll(mDatabase.getFormData(mUrl, mName)); 4940 } 4941 4942 if (pastEntries.size() > 0) { 4943 ArrayAdapter<String> adapter = new ArrayAdapter<String>( 4944 mContext, 4945 com.android.internal.R.layout.web_text_view_dropdown, 4946 pastEntries); 4947 mUpdateMessage.obj = adapter; 4948 mUpdateMessage.sendToTarget(); 4949 } 4950 } 4951 } 4952 4953 /** 4954 * Dump the display tree to "/sdcard/displayTree.txt" 4955 * 4956 * debug only 4957 */ 4958 public void dumpDisplayTree() { 4959 nativeDumpDisplayTree(getUrl()); 4960 } 4961 4962 /** 4963 * Dump the dom tree to adb shell if "toFile" is False, otherwise dump it to 4964 * "/sdcard/domTree.txt" 4965 * 4966 * debug only 4967 */ 4968 public void dumpDomTree(boolean toFile) { 4969 mWebViewCore.sendMessage(EventHub.DUMP_DOMTREE, toFile ? 1 : 0, 0); 4970 } 4971 4972 /** 4973 * Dump the render tree to adb shell if "toFile" is False, otherwise dump it 4974 * to "/sdcard/renderTree.txt" 4975 * 4976 * debug only 4977 */ 4978 public void dumpRenderTree(boolean toFile) { 4979 mWebViewCore.sendMessage(EventHub.DUMP_RENDERTREE, toFile ? 1 : 0, 0); 4980 } 4981 4982 /** 4983 * Called by DRT on UI thread, need to proxy to WebCore thread. 4984 * 4985 * debug only 4986 */ 4987 public void setUseMockDeviceOrientation() { 4988 mWebViewCore.sendMessage(EventHub.SET_USE_MOCK_DEVICE_ORIENTATION); 4989 } 4990 4991 /** 4992 * Called by DRT on WebCore thread. 4993 * 4994 * debug only 4995 */ 4996 public void setMockDeviceOrientation(boolean canProvideAlpha, double alpha, 4997 boolean canProvideBeta, double beta, boolean canProvideGamma, double gamma) { 4998 mWebViewCore.setMockDeviceOrientation(canProvideAlpha, alpha, canProvideBeta, beta, 4999 canProvideGamma, gamma); 5000 } 5001 5002 // This is used to determine long press with the center key. Does not 5003 // affect long press with the trackball/touch. 5004 private boolean mGotCenterDown = false; 5005 5006 @Override 5007 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5008 if (mBlockWebkitViewMessages) { 5009 return false; 5010 } 5011 // send complex characters to webkit for use by JS and plugins 5012 if (keyCode == KeyEvent.KEYCODE_UNKNOWN && event.getCharacters() != null) { 5013 // pass the key to DOM 5014 sendBatchableInputMessage(EventHub.KEY_DOWN, 0, 0, event); 5015 sendBatchableInputMessage(EventHub.KEY_UP, 0, 0, event); 5016 // return true as DOM handles the key 5017 return true; 5018 } 5019 return false; 5020 } 5021 5022 private boolean isEnterActionKey(int keyCode) { 5023 return keyCode == KeyEvent.KEYCODE_DPAD_CENTER 5024 || keyCode == KeyEvent.KEYCODE_ENTER 5025 || keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER; 5026 } 5027 5028 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5029 if (mAutoCompletePopup != null) { 5030 return mAutoCompletePopup.onKeyPreIme(keyCode, event); 5031 } 5032 return false; 5033 } 5034 5035 @Override 5036 public boolean onKeyDown(int keyCode, KeyEvent event) { 5037 if (DebugFlags.WEB_VIEW) { 5038 Log.v(LOGTAG, "keyDown at " + System.currentTimeMillis() 5039 + "keyCode=" + keyCode 5040 + ", " + event + ", unicode=" + event.getUnicodeChar()); 5041 } 5042 if (mIsCaretSelection) { 5043 selectionDone(); 5044 } 5045 if (mBlockWebkitViewMessages) { 5046 return false; 5047 } 5048 5049 // don't implement accelerator keys here; defer to host application 5050 if (event.isCtrlPressed()) { 5051 return false; 5052 } 5053 5054 if (mNativeClass == 0) { 5055 return false; 5056 } 5057 5058 // do this hack up front, so it always works, regardless of touch-mode 5059 if (AUTO_REDRAW_HACK && (keyCode == KeyEvent.KEYCODE_CALL)) { 5060 mAutoRedraw = !mAutoRedraw; 5061 if (mAutoRedraw) { 5062 invalidate(); 5063 } 5064 return true; 5065 } 5066 5067 // Bubble up the key event if 5068 // 1. it is a system key; or 5069 // 2. the host application wants to handle it; 5070 if (event.isSystem() 5071 || mCallbackProxy.uiOverrideKeyEvent(event)) { 5072 return false; 5073 } 5074 5075 // accessibility support 5076 if (accessibilityScriptInjected()) { 5077 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 5078 // if an accessibility script is injected we delegate to it the key handling. 5079 // this script is a screen reader which is a fully fledged solution for blind 5080 // users to navigate in and interact with web pages. 5081 sendBatchableInputMessage(EventHub.KEY_DOWN, 0, 0, event); 5082 return true; 5083 } else { 5084 // Clean up if accessibility was disabled after loading the current URL. 5085 mAccessibilityScriptInjected = false; 5086 } 5087 } else if (mAccessibilityInjector != null) { 5088 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 5089 if (mAccessibilityInjector.onKeyEvent(event)) { 5090 // if an accessibility injector is present (no JavaScript enabled or the site 5091 // opts out injecting our JavaScript screen reader) we let it decide whether 5092 // to act on and consume the event. 5093 return true; 5094 } 5095 } else { 5096 // Clean up if accessibility was disabled after loading the current URL. 5097 mAccessibilityInjector = null; 5098 } 5099 } 5100 5101 if (keyCode == KeyEvent.KEYCODE_PAGE_UP) { 5102 if (event.hasNoModifiers()) { 5103 pageUp(false); 5104 return true; 5105 } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) { 5106 pageUp(true); 5107 return true; 5108 } 5109 } 5110 5111 if (keyCode == KeyEvent.KEYCODE_PAGE_DOWN) { 5112 if (event.hasNoModifiers()) { 5113 pageDown(false); 5114 return true; 5115 } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) { 5116 pageDown(true); 5117 return true; 5118 } 5119 } 5120 5121 if (keyCode == KeyEvent.KEYCODE_MOVE_HOME && event.hasNoModifiers()) { 5122 pageUp(true); 5123 return true; 5124 } 5125 5126 if (keyCode == KeyEvent.KEYCODE_MOVE_END && event.hasNoModifiers()) { 5127 pageDown(true); 5128 return true; 5129 } 5130 5131 if (keyCode >= KeyEvent.KEYCODE_DPAD_UP 5132 && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { 5133 switchOutDrawHistory(); 5134 } 5135 5136 if (isEnterActionKey(keyCode)) { 5137 switchOutDrawHistory(); 5138 if (event.getRepeatCount() == 0) { 5139 if (mSelectingText) { 5140 return true; // discard press if copy in progress 5141 } 5142 mGotCenterDown = true; 5143 mPrivateHandler.sendMessageDelayed(mPrivateHandler 5144 .obtainMessage(LONG_PRESS_CENTER), LONG_PRESS_TIMEOUT); 5145 } 5146 } 5147 5148 if (getSettings().getNavDump()) { 5149 switch (keyCode) { 5150 case KeyEvent.KEYCODE_4: 5151 dumpDisplayTree(); 5152 break; 5153 case KeyEvent.KEYCODE_5: 5154 case KeyEvent.KEYCODE_6: 5155 dumpDomTree(keyCode == KeyEvent.KEYCODE_5); 5156 break; 5157 case KeyEvent.KEYCODE_7: 5158 case KeyEvent.KEYCODE_8: 5159 dumpRenderTree(keyCode == KeyEvent.KEYCODE_7); 5160 break; 5161 } 5162 } 5163 5164 // pass the key to DOM 5165 sendKeyEvent(event); 5166 // return true as DOM handles the key 5167 return true; 5168 } 5169 5170 @Override 5171 public boolean onKeyUp(int keyCode, KeyEvent event) { 5172 if (DebugFlags.WEB_VIEW) { 5173 Log.v(LOGTAG, "keyUp at " + System.currentTimeMillis() 5174 + ", " + event + ", unicode=" + event.getUnicodeChar()); 5175 } 5176 if (mBlockWebkitViewMessages) { 5177 return false; 5178 } 5179 5180 if (mNativeClass == 0) { 5181 return false; 5182 } 5183 5184 // special CALL handling when cursor node's href is "tel:XXX" 5185 if (keyCode == KeyEvent.KEYCODE_CALL 5186 && mInitialHitTestResult != null 5187 && mInitialHitTestResult.getType() == HitTestResult.PHONE_TYPE) { 5188 String text = mInitialHitTestResult.getExtra(); 5189 Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse(text)); 5190 mContext.startActivity(intent); 5191 return true; 5192 } 5193 5194 // Bubble up the key event if 5195 // 1. it is a system key; or 5196 // 2. the host application wants to handle it; 5197 if (event.isSystem() 5198 || mCallbackProxy.uiOverrideKeyEvent(event)) { 5199 return false; 5200 } 5201 5202 // accessibility support 5203 if (accessibilityScriptInjected()) { 5204 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 5205 // if an accessibility script is injected we delegate to it the key handling. 5206 // this script is a screen reader which is a fully fledged solution for blind 5207 // users to navigate in and interact with web pages. 5208 sendBatchableInputMessage(EventHub.KEY_UP, 0, 0, event); 5209 return true; 5210 } else { 5211 // Clean up if accessibility was disabled after loading the current URL. 5212 mAccessibilityScriptInjected = false; 5213 } 5214 } else if (mAccessibilityInjector != null) { 5215 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 5216 if (mAccessibilityInjector.onKeyEvent(event)) { 5217 // if an accessibility injector is present (no JavaScript enabled or the site 5218 // opts out injecting our JavaScript screen reader) we let it decide whether to 5219 // act on and consume the event. 5220 return true; 5221 } 5222 } else { 5223 // Clean up if accessibility was disabled after loading the current URL. 5224 mAccessibilityInjector = null; 5225 } 5226 } 5227 5228 if (isEnterActionKey(keyCode)) { 5229 // remove the long press message first 5230 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 5231 mGotCenterDown = false; 5232 5233 if (mSelectingText) { 5234 copySelection(); 5235 selectionDone(); 5236 return true; // discard press if copy in progress 5237 } 5238 } 5239 5240 // pass the key to DOM 5241 sendKeyEvent(event); 5242 // return true as DOM handles the key 5243 return true; 5244 } 5245 5246 private boolean startSelectActionMode() { 5247 mSelectCallback = new SelectActionModeCallback(); 5248 mSelectCallback.setTextSelected(!mIsCaretSelection); 5249 mSelectCallback.setWebView(this); 5250 if (mWebView.startActionMode(mSelectCallback) == null) { 5251 // There is no ActionMode, so do not allow the user to modify a 5252 // selection. 5253 selectionDone(); 5254 return false; 5255 } 5256 mWebView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 5257 return true; 5258 } 5259 5260 private void showPasteWindow() { 5261 ClipboardManager cm = (ClipboardManager)(mContext 5262 .getSystemService(Context.CLIPBOARD_SERVICE)); 5263 if (cm.hasPrimaryClip()) { 5264 Point cursorPoint = new Point(contentToViewX(mSelectCursorBase.x), 5265 contentToViewY(mSelectCursorBase.y)); 5266 Point cursorTop = calculateCaretTop(); 5267 cursorTop.set(contentToViewX(cursorTop.x), 5268 contentToViewY(cursorTop.y)); 5269 5270 int[] location = new int[2]; 5271 mWebView.getLocationInWindow(location); 5272 int offsetX = location[0] - getScrollX(); 5273 int offsetY = location[1] - getScrollY(); 5274 cursorPoint.offset(offsetX, offsetY); 5275 cursorTop.offset(offsetX, offsetY); 5276 if (mPasteWindow == null) { 5277 mPasteWindow = new PastePopupWindow(); 5278 } 5279 mPasteWindow.show(cursorPoint, cursorTop, location[0], location[1]); 5280 } 5281 } 5282 5283 /** 5284 * Given segment AB, this finds the point C along AB that is closest to 5285 * point and then returns it scale along AB. The scale factor is AC/AB. 5286 * 5287 * @param x The x coordinate of the point near segment AB that determines 5288 * the scale factor. 5289 * @param y The y coordinate of the point near segment AB that determines 5290 * the scale factor. 5291 * @param a The first point of the line segment. 5292 * @param b The second point of the line segment. 5293 * @return The scale factor AC/AB, where C is the point on AB closest to 5294 * point. 5295 */ 5296 private static float scaleAlongSegment(int x, int y, PointF a, PointF b) { 5297 // The bottom line of the text box is line AB 5298 float abX = b.x - a.x; 5299 float abY = b.y - a.y; 5300 float ab2 = (abX * abX) + (abY * abY); 5301 5302 // The line from first point in text bounds to bottom is AP 5303 float apX = x - a.x; 5304 float apY = y - a.y; 5305 float abDotAP = (apX * abX) + (apY * abY); 5306 float scale = abDotAP / ab2; 5307 return scale; 5308 } 5309 5310 /** 5311 * Assuming arbitrary shape of a quadralateral forming text bounds, this 5312 * calculates the top of a caret. 5313 */ 5314 private Point calculateCaretTop() { 5315 float scale = scaleAlongSegment(mSelectCursorBase.x, mSelectCursorBase.y, 5316 mSelectCursorBaseTextQuad.p4, mSelectCursorBaseTextQuad.p3); 5317 int x = Math.round(scaleCoordinate(scale, 5318 mSelectCursorBaseTextQuad.p1.x, mSelectCursorBaseTextQuad.p2.x)); 5319 int y = Math.round(scaleCoordinate(scale, 5320 mSelectCursorBaseTextQuad.p1.y, mSelectCursorBaseTextQuad.p2.y)); 5321 return new Point(x, y); 5322 } 5323 5324 private void hidePasteButton() { 5325 if (mPasteWindow != null) { 5326 mPasteWindow.hide(); 5327 } 5328 } 5329 5330 private void syncSelectionCursors() { 5331 mSelectCursorBaseLayerId = 5332 nativeGetHandleLayerId(mNativeClass, HANDLE_ID_BASE, 5333 mSelectCursorBase, mSelectCursorBaseTextQuad); 5334 mSelectCursorExtentLayerId = 5335 nativeGetHandleLayerId(mNativeClass, HANDLE_ID_EXTENT, 5336 mSelectCursorExtent, mSelectCursorExtentTextQuad); 5337 } 5338 5339 private void adjustSelectionCursors() { 5340 boolean wasDraggingStart = (mSelectDraggingCursor == mSelectCursorBase); 5341 int oldX = mSelectDraggingCursor.x; 5342 int oldY = mSelectDraggingCursor.y; 5343 int oldStartX = mSelectCursorBase.x; 5344 int oldStartY = mSelectCursorBase.y; 5345 int oldEndX = mSelectCursorExtent.x; 5346 int oldEndY = mSelectCursorExtent.y; 5347 5348 syncSelectionCursors(); 5349 boolean dragChanged = oldX != mSelectDraggingCursor.x || 5350 oldY != mSelectDraggingCursor.y; 5351 if (dragChanged && !mIsCaretSelection) { 5352 boolean draggingStart; 5353 if (wasDraggingStart) { 5354 float endStart = distanceSquared(oldEndX, oldEndY, 5355 mSelectCursorBase); 5356 float endEnd = distanceSquared(oldEndX, oldEndY, 5357 mSelectCursorExtent); 5358 draggingStart = endStart > endEnd; 5359 } else { 5360 float startStart = distanceSquared(oldStartX, oldStartY, 5361 mSelectCursorBase); 5362 float startEnd = distanceSquared(oldStartX, oldStartY, 5363 mSelectCursorExtent); 5364 draggingStart = startStart > startEnd; 5365 } 5366 mSelectDraggingCursor = (draggingStart 5367 ? mSelectCursorBase : mSelectCursorExtent); 5368 mSelectDraggingTextQuad = (draggingStart 5369 ? mSelectCursorBaseTextQuad : mSelectCursorExtentTextQuad); 5370 mSelectDraggingOffset = (draggingStart 5371 ? mSelectHandleLeftOffset : mSelectHandleRightOffset); 5372 } 5373 mSelectDraggingCursor.set(oldX, oldY); 5374 } 5375 5376 private float distanceSquared(int x, int y, Point p) { 5377 float dx = p.x - x; 5378 float dy = p.y - y; 5379 return (dx * dx) + (dy * dy); 5380 } 5381 5382 private boolean setupWebkitSelect() { 5383 syncSelectionCursors(); 5384 if (!mIsCaretSelection && !startSelectActionMode()) { 5385 selectionDone(); 5386 return false; 5387 } 5388 mSelectingText = true; 5389 mTouchMode = TOUCH_DRAG_MODE; 5390 return true; 5391 } 5392 5393 private void updateWebkitSelection() { 5394 int[] handles = null; 5395 if (mIsCaretSelection) { 5396 mSelectCursorExtent.set(mSelectCursorBase.x, mSelectCursorBase.y); 5397 } 5398 if (mSelectingText) { 5399 handles = new int[4]; 5400 handles[0] = mSelectCursorBase.x; 5401 handles[1] = mSelectCursorBase.y; 5402 handles[2] = mSelectCursorExtent.x; 5403 handles[3] = mSelectCursorExtent.y; 5404 } else { 5405 nativeSetTextSelection(mNativeClass, 0); 5406 } 5407 mWebViewCore.removeMessages(EventHub.SELECT_TEXT); 5408 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SELECT_TEXT, handles); 5409 } 5410 5411 private void resetCaretTimer() { 5412 mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE); 5413 if (!mSelectionStarted) { 5414 mPrivateHandler.sendEmptyMessageDelayed(CLEAR_CARET_HANDLE, 5415 CARET_HANDLE_STAMINA_MS); 5416 } 5417 } 5418 5419 /** 5420 * See {@link WebView#emulateShiftHeld()} 5421 */ 5422 @Override 5423 @Deprecated 5424 public void emulateShiftHeld() { 5425 } 5426 5427 /** 5428 * Select all of the text in this WebView. 5429 * 5430 * This is an implementation detail. 5431 */ 5432 public void selectAll() { 5433 mWebViewCore.sendMessage(EventHub.SELECT_ALL); 5434 } 5435 5436 /** 5437 * Called when the selection has been removed. 5438 */ 5439 void selectionDone() { 5440 if (mSelectingText) { 5441 hidePasteButton(); 5442 mSelectingText = false; 5443 // finish is idempotent, so this is fine even if selectionDone was 5444 // called by mSelectCallback.onDestroyActionMode 5445 if (mSelectCallback != null) { 5446 mSelectCallback.finish(); 5447 mSelectCallback = null; 5448 } 5449 if (!mIsCaretSelection) { 5450 updateWebkitSelection(); 5451 } 5452 invalidate(); // redraw without selection 5453 mAutoScrollX = 0; 5454 mAutoScrollY = 0; 5455 mSentAutoScrollMessage = false; 5456 } 5457 } 5458 5459 /** 5460 * Copy the selection to the clipboard 5461 * 5462 * This is an implementation detail. 5463 */ 5464 public boolean copySelection() { 5465 boolean copiedSomething = false; 5466 String selection = getSelection(); 5467 if (selection != null && selection != "") { 5468 if (DebugFlags.WEB_VIEW) { 5469 Log.v(LOGTAG, "copySelection \"" + selection + "\""); 5470 } 5471 Toast.makeText(mContext 5472 , com.android.internal.R.string.text_copied 5473 , Toast.LENGTH_SHORT).show(); 5474 copiedSomething = true; 5475 ClipboardManager cm = (ClipboardManager)mContext 5476 .getSystemService(Context.CLIPBOARD_SERVICE); 5477 cm.setText(selection); 5478 int[] handles = new int[4]; 5479 getSelectionHandles(handles); 5480 mWebViewCore.sendMessage(EventHub.COPY_TEXT, handles); 5481 } 5482 invalidate(); // remove selection region and pointer 5483 return copiedSomething; 5484 } 5485 5486 /** 5487 * Cut the selected text into the clipboard 5488 * 5489 * This is an implementation detail 5490 */ 5491 public void cutSelection() { 5492 copySelection(); 5493 int[] handles = new int[4]; 5494 getSelectionHandles(handles); 5495 mWebViewCore.sendMessage(EventHub.DELETE_TEXT, handles); 5496 } 5497 5498 /** 5499 * Paste text from the clipboard to the cursor position. 5500 * 5501 * This is an implementation detail 5502 */ 5503 public void pasteFromClipboard() { 5504 ClipboardManager cm = (ClipboardManager)mContext 5505 .getSystemService(Context.CLIPBOARD_SERVICE); 5506 ClipData clipData = cm.getPrimaryClip(); 5507 if (clipData != null) { 5508 ClipData.Item clipItem = clipData.getItemAt(0); 5509 CharSequence pasteText = clipItem.getText(); 5510 if (mInputConnection != null) { 5511 mInputConnection.replaceSelection(pasteText); 5512 } 5513 } 5514 } 5515 5516 /** 5517 * This is an implementation detail. 5518 */ 5519 public SearchBox getSearchBox() { 5520 if ((mWebViewCore == null) || (mWebViewCore.getBrowserFrame() == null)) { 5521 return null; 5522 } 5523 return mWebViewCore.getBrowserFrame().getSearchBox(); 5524 } 5525 5526 /** 5527 * Returns the currently highlighted text as a string. 5528 */ 5529 String getSelection() { 5530 if (mNativeClass == 0) return ""; 5531 return nativeGetSelection(); 5532 } 5533 5534 @Override 5535 public void onAttachedToWindow() { 5536 if (mWebView.hasWindowFocus()) setActive(true); 5537 final ViewTreeObserver treeObserver = mWebView.getViewTreeObserver(); 5538 if (mGlobalLayoutListener == null) { 5539 mGlobalLayoutListener = new InnerGlobalLayoutListener(); 5540 treeObserver.addOnGlobalLayoutListener(mGlobalLayoutListener); 5541 } 5542 if (mScrollChangedListener == null) { 5543 mScrollChangedListener = new InnerScrollChangedListener(); 5544 treeObserver.addOnScrollChangedListener(mScrollChangedListener); 5545 } 5546 5547 addAccessibilityApisToJavaScript(); 5548 5549 updateHwAccelerated(); 5550 } 5551 5552 @Override 5553 public void onDetachedFromWindow() { 5554 clearHelpers(); 5555 mZoomManager.dismissZoomPicker(); 5556 if (mWebView.hasWindowFocus()) setActive(false); 5557 5558 final ViewTreeObserver treeObserver = mWebView.getViewTreeObserver(); 5559 if (mGlobalLayoutListener != null) { 5560 treeObserver.removeGlobalOnLayoutListener(mGlobalLayoutListener); 5561 mGlobalLayoutListener = null; 5562 } 5563 if (mScrollChangedListener != null) { 5564 treeObserver.removeOnScrollChangedListener(mScrollChangedListener); 5565 mScrollChangedListener = null; 5566 } 5567 5568 removeAccessibilityApisFromJavaScript(); 5569 updateHwAccelerated(); 5570 } 5571 5572 @Override 5573 public void onVisibilityChanged(View changedView, int visibility) { 5574 // The zoomManager may be null if the webview is created from XML that 5575 // specifies the view's visibility param as not visible (see http://b/2794841) 5576 if (visibility != View.VISIBLE && mZoomManager != null) { 5577 mZoomManager.dismissZoomPicker(); 5578 } 5579 updateDrawingState(); 5580 } 5581 5582 void setActive(boolean active) { 5583 if (active) { 5584 if (mWebView.hasFocus()) { 5585 // If our window regained focus, and we have focus, then begin 5586 // drawing the cursor ring 5587 mDrawCursorRing = true; 5588 setFocusControllerActive(true); 5589 } else { 5590 mDrawCursorRing = false; 5591 setFocusControllerActive(false); 5592 } 5593 } else { 5594 if (!mZoomManager.isZoomPickerVisible()) { 5595 /* 5596 * The external zoom controls come in their own window, so our 5597 * window loses focus. Our policy is to not draw the cursor ring 5598 * if our window is not focused, but this is an exception since 5599 * the user can still navigate the web page with the zoom 5600 * controls showing. 5601 */ 5602 mDrawCursorRing = false; 5603 } 5604 mKeysPressed.clear(); 5605 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5606 mTouchMode = TOUCH_DONE_MODE; 5607 setFocusControllerActive(false); 5608 } 5609 invalidate(); 5610 } 5611 5612 // To avoid drawing the cursor ring, and remove the TextView when our window 5613 // loses focus. 5614 @Override 5615 public void onWindowFocusChanged(boolean hasWindowFocus) { 5616 setActive(hasWindowFocus); 5617 if (hasWindowFocus) { 5618 JWebCoreJavaBridge.setActiveWebView(this); 5619 if (mPictureUpdatePausedForFocusChange) { 5620 WebViewCore.resumeUpdatePicture(mWebViewCore); 5621 mPictureUpdatePausedForFocusChange = false; 5622 } 5623 } else { 5624 JWebCoreJavaBridge.removeActiveWebView(this); 5625 final WebSettings settings = getSettings(); 5626 if (settings != null && settings.enableSmoothTransition() && 5627 mWebViewCore != null && !WebViewCore.isUpdatePicturePaused(mWebViewCore)) { 5628 WebViewCore.pauseUpdatePicture(mWebViewCore); 5629 mPictureUpdatePausedForFocusChange = true; 5630 } 5631 } 5632 } 5633 5634 /* 5635 * Pass a message to WebCore Thread, telling the WebCore::Page's 5636 * FocusController to be "inactive" so that it will 5637 * not draw the blinking cursor. It gets set to "active" to draw the cursor 5638 * in WebViewCore.cpp, when the WebCore thread receives key events/clicks. 5639 */ 5640 /* package */ void setFocusControllerActive(boolean active) { 5641 if (mWebViewCore == null) return; 5642 mWebViewCore.sendMessage(EventHub.SET_ACTIVE, active ? 1 : 0, 0); 5643 // Need to send this message after the document regains focus. 5644 if (active && mListBoxMessage != null) { 5645 mWebViewCore.sendMessage(mListBoxMessage); 5646 mListBoxMessage = null; 5647 } 5648 } 5649 5650 @Override 5651 public void onFocusChanged(boolean focused, int direction, 5652 Rect previouslyFocusedRect) { 5653 if (DebugFlags.WEB_VIEW) { 5654 Log.v(LOGTAG, "MT focusChanged " + focused + ", " + direction); 5655 } 5656 if (focused) { 5657 mDrawCursorRing = true; 5658 setFocusControllerActive(true); 5659 } else { 5660 mDrawCursorRing = false; 5661 setFocusControllerActive(false); 5662 mKeysPressed.clear(); 5663 } 5664 if (!mTouchHighlightRegion.isEmpty()) { 5665 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 5666 } 5667 } 5668 5669 void setGLRectViewport() { 5670 // Use the getGlobalVisibleRect() to get the intersection among the parents 5671 // visible == false means we're clipped - send a null rect down to indicate that 5672 // we should not draw 5673 boolean visible = mWebView.getGlobalVisibleRect(mGLRectViewport); 5674 if (visible) { 5675 // Then need to invert the Y axis, just for GL 5676 View rootView = mWebView.getRootView(); 5677 int rootViewHeight = rootView.getHeight(); 5678 mViewRectViewport.set(mGLRectViewport); 5679 int savedWebViewBottom = mGLRectViewport.bottom; 5680 mGLRectViewport.bottom = rootViewHeight - mGLRectViewport.top - getVisibleTitleHeightImpl(); 5681 mGLRectViewport.top = rootViewHeight - savedWebViewBottom; 5682 mGLViewportEmpty = false; 5683 } else { 5684 mGLViewportEmpty = true; 5685 } 5686 calcOurContentVisibleRectF(mVisibleContentRect); 5687 nativeUpdateDrawGLFunction(mGLViewportEmpty ? null : mGLRectViewport, 5688 mGLViewportEmpty ? null : mViewRectViewport, 5689 mVisibleContentRect, getScale()); 5690 } 5691 5692 @Override 5693 public boolean setFrame(int left, int top, int right, int bottom) { 5694 boolean changed = mWebViewPrivate.super_setFrame(left, top, right, bottom); 5695 if (!changed && mHeightCanMeasure) { 5696 // When mHeightCanMeasure is true, we will set mLastHeightSent to 0 5697 // in WebViewCore after we get the first layout. We do call 5698 // requestLayout() when we get contentSizeChanged(). But the View 5699 // system won't call onSizeChanged if the dimension is not changed. 5700 // In this case, we need to call sendViewSizeZoom() explicitly to 5701 // notify the WebKit about the new dimensions. 5702 sendViewSizeZoom(false); 5703 } 5704 setGLRectViewport(); 5705 return changed; 5706 } 5707 5708 @Override 5709 public void onSizeChanged(int w, int h, int ow, int oh) { 5710 // adjust the max viewport width depending on the view dimensions. This 5711 // is to ensure the scaling is not going insane. So do not shrink it if 5712 // the view size is temporarily smaller, e.g. when soft keyboard is up. 5713 int newMaxViewportWidth = (int) (Math.max(w, h) / mZoomManager.getDefaultMinZoomScale()); 5714 if (newMaxViewportWidth > sMaxViewportWidth) { 5715 sMaxViewportWidth = newMaxViewportWidth; 5716 } 5717 5718 mZoomManager.onSizeChanged(w, h, ow, oh); 5719 5720 if (mLoadedPicture != null && mDelaySetPicture == null) { 5721 // Size changes normally result in a new picture 5722 // Re-set the loaded picture to simulate that 5723 // However, do not update the base layer as that hasn't changed 5724 setNewPicture(mLoadedPicture, false); 5725 } 5726 relocateAutoCompletePopup(); 5727 } 5728 5729 @Override 5730 public void onScrollChanged(int l, int t, int oldl, int oldt) { 5731 if (!mInOverScrollMode) { 5732 sendOurVisibleRect(); 5733 // update WebKit if visible title bar height changed. The logic is same 5734 // as getVisibleTitleHeightImpl. 5735 int titleHeight = getTitleHeight(); 5736 if (Math.max(titleHeight - t, 0) != Math.max(titleHeight - oldt, 0)) { 5737 sendViewSizeZoom(false); 5738 } 5739 } 5740 } 5741 5742 @Override 5743 public boolean dispatchKeyEvent(KeyEvent event) { 5744 switch (event.getAction()) { 5745 case KeyEvent.ACTION_DOWN: 5746 mKeysPressed.add(Integer.valueOf(event.getKeyCode())); 5747 break; 5748 case KeyEvent.ACTION_MULTIPLE: 5749 // Always accept the action. 5750 break; 5751 case KeyEvent.ACTION_UP: 5752 int location = mKeysPressed.indexOf(Integer.valueOf(event.getKeyCode())); 5753 if (location == -1) { 5754 // We did not receive the key down for this key, so do not 5755 // handle the key up. 5756 return false; 5757 } else { 5758 // We did receive the key down. Handle the key up, and 5759 // remove it from our pressed keys. 5760 mKeysPressed.remove(location); 5761 } 5762 break; 5763 default: 5764 // Accept the action. This should not happen, unless a new 5765 // action is added to KeyEvent. 5766 break; 5767 } 5768 return mWebViewPrivate.super_dispatchKeyEvent(event); 5769 } 5770 5771 /* 5772 * Here is the snap align logic: 5773 * 1. If it starts nearly horizontally or vertically, snap align; 5774 * 2. If there is a dramitic direction change, let it go; 5775 * 5776 * Adjustable parameters. Angle is the radians on a unit circle, limited 5777 * to quadrant 1. Values range from 0f (horizontal) to PI/2 (vertical) 5778 */ 5779 private static final float HSLOPE_TO_START_SNAP = .25f; 5780 private static final float HSLOPE_TO_BREAK_SNAP = .4f; 5781 private static final float VSLOPE_TO_START_SNAP = 1.25f; 5782 private static final float VSLOPE_TO_BREAK_SNAP = .95f; 5783 /* 5784 * These values are used to influence the average angle when entering 5785 * snap mode. If is is the first movement entering snap, we set the average 5786 * to the appropriate ideal. If the user is entering into snap after the 5787 * first movement, then we average the average angle with these values. 5788 */ 5789 private static final float ANGLE_VERT = 2f; 5790 private static final float ANGLE_HORIZ = 0f; 5791 /* 5792 * The modified moving average weight. 5793 * Formula: MAV[t]=MAV[t-1] + (P[t]-MAV[t-1])/n 5794 */ 5795 private static final float MMA_WEIGHT_N = 5; 5796 5797 private boolean inFullScreenMode() { 5798 return mFullScreenHolder != null; 5799 } 5800 5801 private void dismissFullScreenMode() { 5802 if (inFullScreenMode()) { 5803 mFullScreenHolder.hide(); 5804 mFullScreenHolder = null; 5805 invalidate(); 5806 } 5807 } 5808 5809 void onPinchToZoomAnimationStart() { 5810 // cancel the single touch handling 5811 cancelTouch(); 5812 onZoomAnimationStart(); 5813 } 5814 5815 void onPinchToZoomAnimationEnd(ScaleGestureDetector detector) { 5816 onZoomAnimationEnd(); 5817 // start a drag, TOUCH_PINCH_DRAG, can't use TOUCH_INIT_MODE as 5818 // it may trigger the unwanted click, can't use TOUCH_DRAG_MODE 5819 // as it may trigger the unwanted fling. 5820 mTouchMode = TOUCH_PINCH_DRAG; 5821 mConfirmMove = true; 5822 startTouch(detector.getFocusX(), detector.getFocusY(), mLastTouchTime); 5823 } 5824 5825 // See if there is a layer at x, y and switch to TOUCH_DRAG_LAYER_MODE if a 5826 // layer is found. 5827 private void startScrollingLayer(float x, float y) { 5828 int contentX = viewToContentX((int) x + getScrollX()); 5829 int contentY = viewToContentY((int) y + getScrollY()); 5830 mCurrentScrollingLayerId = nativeScrollableLayer(contentX, contentY, 5831 mScrollingLayerRect, mScrollingLayerBounds); 5832 if (mCurrentScrollingLayerId != 0) { 5833 mTouchMode = TOUCH_DRAG_LAYER_MODE; 5834 } 5835 } 5836 5837 // 1/(density * density) used to compute the distance between points. 5838 // Computed in init(). 5839 private float DRAG_LAYER_INVERSE_DENSITY_SQUARED; 5840 5841 // The distance between two points reported in onTouchEvent scaled by the 5842 // density of the screen. 5843 private static final int DRAG_LAYER_FINGER_DISTANCE = 20000; 5844 5845 @Override 5846 public boolean onHoverEvent(MotionEvent event) { 5847 if (mNativeClass == 0) { 5848 return false; 5849 } 5850 int x = viewToContentX((int) event.getX() + getScrollX()); 5851 int y = viewToContentY((int) event.getY() + getScrollY()); 5852 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, x, y); 5853 return true; 5854 } 5855 5856 @Override 5857 public boolean onTouchEvent(MotionEvent ev) { 5858 if (mNativeClass == 0 || (!mWebView.isClickable() && !mWebView.isLongClickable())) { 5859 return false; 5860 } 5861 5862 if (!mWebView.isFocused()) { 5863 mWebView.requestFocus(); 5864 } 5865 5866 if (mInputDispatcher == null) { 5867 return false; 5868 } 5869 5870 if (mInputDispatcher.postPointerEvent(ev, getScrollX(), 5871 getScrollY() - getTitleHeight(), mZoomManager.getInvScale())) { 5872 return true; 5873 } else { 5874 Log.w(LOGTAG, "mInputDispatcher rejected the event!"); 5875 return false; 5876 } 5877 } 5878 5879 private float calculateDragAngle(int dx, int dy) { 5880 dx = Math.abs(dx); 5881 dy = Math.abs(dy); 5882 return (float) Math.atan2(dy, dx); 5883 } 5884 5885 /* 5886 * Common code for single touch and multi-touch. 5887 * (x, y) denotes current focus point, which is the touch point for single touch 5888 * and the middle point for multi-touch. 5889 */ 5890 private void handleTouchEventCommon(MotionEvent event, int action, int x, int y) { 5891 ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); 5892 5893 long eventTime = event.getEventTime(); 5894 5895 // Due to the touch screen edge effect, a touch closer to the edge 5896 // always snapped to the edge. As getViewWidth() can be different from 5897 // getWidth() due to the scrollbar, adjusting the point to match 5898 // getViewWidth(). Same applied to the height. 5899 x = Math.min(x, getViewWidth() - 1); 5900 y = Math.min(y, getViewHeightWithTitle() - 1); 5901 5902 int deltaX = mLastTouchX - x; 5903 int deltaY = mLastTouchY - y; 5904 int contentX = viewToContentX(x + getScrollX()); 5905 int contentY = viewToContentY(y + getScrollY()); 5906 5907 switch (action) { 5908 case MotionEvent.ACTION_DOWN: { 5909 mConfirmMove = false; 5910 mInitialHitTestResult = null; 5911 if (!mEditTextScroller.isFinished()) { 5912 mEditTextScroller.abortAnimation(); 5913 } 5914 if (!mScroller.isFinished()) { 5915 // stop the current scroll animation, but if this is 5916 // the start of a fling, allow it to add to the current 5917 // fling's velocity 5918 mScroller.abortAnimation(); 5919 mTouchMode = TOUCH_DRAG_START_MODE; 5920 mConfirmMove = true; 5921 nativeSetIsScrolling(false); 5922 } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) { 5923 mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP); 5924 removeTouchHighlight(); 5925 if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) { 5926 mTouchMode = TOUCH_DOUBLE_TAP_MODE; 5927 } else { 5928 mTouchMode = TOUCH_INIT_MODE; 5929 } 5930 } else { // the normal case 5931 mTouchMode = TOUCH_INIT_MODE; 5932 // TODO: Have WebViewInputDispatch handle this 5933 TouchHighlightData data = new TouchHighlightData(); 5934 data.mX = contentX; 5935 data.mY = contentY; 5936 data.mNativeLayerRect = new Rect(); 5937 data.mNativeLayer = nativeScrollableLayer( 5938 contentX, contentY, data.mNativeLayerRect, null); 5939 data.mSlop = viewToContentDimension(mNavSlop); 5940 removeTouchHighlight(); 5941 if (!mBlockWebkitViewMessages) { 5942 mTouchHighlightRequested = SystemClock.uptimeMillis(); 5943 mWebViewCore.sendMessageAtFrontOfQueue( 5944 EventHub.HIT_TEST, data); 5945 } 5946 if (mLogEvent && eventTime - mLastTouchUpTime < 1000) { 5947 EventLog.writeEvent(EventLogTags.BROWSER_DOUBLE_TAP_DURATION, 5948 (eventTime - mLastTouchUpTime), eventTime); 5949 } 5950 mSelectionStarted = false; 5951 if (mSelectingText) { 5952 ensureSelectionHandles(); 5953 int shiftedY = y - getTitleHeight() + getScrollY(); 5954 int shiftedX = x + getScrollX(); 5955 if (mSelectHandleCenter != null && mSelectHandleCenter.getBounds() 5956 .contains(shiftedX, shiftedY)) { 5957 mSelectionStarted = true; 5958 mSelectDraggingCursor = mSelectCursorBase; 5959 mSelectDraggingOffset = mSelectHandleCenterOffset; 5960 mSelectDraggingTextQuad = mSelectCursorBaseTextQuad; 5961 mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE); 5962 hidePasteButton(); 5963 } else if (mSelectHandleLeft != null 5964 && mSelectHandleLeft.getBounds() 5965 .contains(shiftedX, shiftedY)) { 5966 mSelectionStarted = true; 5967 mSelectDraggingCursor = mSelectCursorBase; 5968 mSelectDraggingOffset = mSelectHandleLeftOffset; 5969 mSelectDraggingTextQuad = mSelectCursorBaseTextQuad; 5970 } else if (mSelectHandleRight != null 5971 && mSelectHandleRight.getBounds() 5972 .contains(shiftedX, shiftedY)) { 5973 mSelectionStarted = true; 5974 mSelectDraggingCursor = mSelectCursorExtent; 5975 mSelectDraggingOffset = mSelectHandleRightOffset; 5976 mSelectDraggingTextQuad = mSelectCursorExtentTextQuad; 5977 } else if (mIsCaretSelection) { 5978 selectionDone(); 5979 } 5980 if (DebugFlags.WEB_VIEW) { 5981 Log.v(LOGTAG, "select=" + contentX + "," + contentY); 5982 } 5983 } 5984 } 5985 // Trigger the link 5986 if (!mSelectingText && (mTouchMode == TOUCH_INIT_MODE 5987 || mTouchMode == TOUCH_DOUBLE_TAP_MODE)) { 5988 mPrivateHandler.sendEmptyMessageDelayed( 5989 SWITCH_TO_SHORTPRESS, TAP_TIMEOUT); 5990 mPrivateHandler.sendEmptyMessageDelayed( 5991 SWITCH_TO_LONGPRESS, LONG_PRESS_TIMEOUT); 5992 } 5993 startTouch(x, y, eventTime); 5994 if (mIsEditingText) { 5995 mTouchInEditText = mEditTextContentBounds 5996 .contains(contentX, contentY); 5997 } 5998 break; 5999 } 6000 case MotionEvent.ACTION_MOVE: { 6001 if (!mConfirmMove && (deltaX * deltaX + deltaY * deltaY) 6002 >= mTouchSlopSquare) { 6003 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6004 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6005 mConfirmMove = true; 6006 if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 6007 mTouchMode = TOUCH_INIT_MODE; 6008 } 6009 removeTouchHighlight(); 6010 } 6011 if (mSelectingText && mSelectionStarted) { 6012 if (DebugFlags.WEB_VIEW) { 6013 Log.v(LOGTAG, "extend=" + contentX + "," + contentY); 6014 } 6015 ViewParent parent = mWebView.getParent(); 6016 if (parent != null) { 6017 parent.requestDisallowInterceptTouchEvent(true); 6018 } 6019 if (deltaX != 0 || deltaY != 0) { 6020 int handleX = contentX + 6021 viewToContentDimension(mSelectDraggingOffset.x); 6022 int handleY = contentY + 6023 viewToContentDimension(mSelectDraggingOffset.y); 6024 mSelectDraggingCursor.set(handleX, handleY); 6025 boolean inCursorText = 6026 mSelectDraggingTextQuad.containsPoint(handleX, handleY); 6027 boolean inEditBounds = mEditTextContentBounds 6028 .contains(handleX, handleY); 6029 if (mIsEditingText && !inEditBounds) { 6030 beginScrollEdit(); 6031 } else { 6032 endScrollEdit(); 6033 } 6034 if (inCursorText || (mIsEditingText && !inEditBounds)) { 6035 snapDraggingCursor(); 6036 } 6037 updateWebkitSelection(); 6038 if (!inCursorText && mIsEditingText && inEditBounds) { 6039 // Visually snap even if we have moved the handle. 6040 snapDraggingCursor(); 6041 } 6042 mLastTouchX = x; 6043 mLastTouchY = y; 6044 invalidate(); 6045 } 6046 break; 6047 } 6048 6049 if (mTouchMode == TOUCH_DONE_MODE) { 6050 // no dragging during scroll zoom animation, or when prevent 6051 // default is yes 6052 break; 6053 } 6054 if (mVelocityTracker == null) { 6055 Log.e(LOGTAG, "Got null mVelocityTracker when " 6056 + " mTouchMode = " + mTouchMode); 6057 } else { 6058 mVelocityTracker.addMovement(event); 6059 } 6060 6061 if (mTouchMode != TOUCH_DRAG_MODE && 6062 mTouchMode != TOUCH_DRAG_LAYER_MODE && 6063 mTouchMode != TOUCH_DRAG_TEXT_MODE) { 6064 6065 if (!mConfirmMove) { 6066 break; 6067 } 6068 6069 // Only lock dragging to one axis if we don't have a scale in progress. 6070 // Scaling implies free-roaming movement. Note this is only ever a question 6071 // if mZoomManager.supportsPanDuringZoom() is true. 6072 mAverageAngle = calculateDragAngle(deltaX, deltaY); 6073 if (detector == null || !detector.isInProgress()) { 6074 // if it starts nearly horizontal or vertical, enforce it 6075 if (mAverageAngle < HSLOPE_TO_START_SNAP) { 6076 mSnapScrollMode = SNAP_X; 6077 mSnapPositive = deltaX > 0; 6078 mAverageAngle = ANGLE_HORIZ; 6079 } else if (mAverageAngle > VSLOPE_TO_START_SNAP) { 6080 mSnapScrollMode = SNAP_Y; 6081 mSnapPositive = deltaY > 0; 6082 mAverageAngle = ANGLE_VERT; 6083 } 6084 } 6085 6086 mTouchMode = TOUCH_DRAG_MODE; 6087 mLastTouchX = x; 6088 mLastTouchY = y; 6089 deltaX = 0; 6090 deltaY = 0; 6091 6092 startScrollingLayer(x, y); 6093 startDrag(); 6094 } 6095 6096 // do pan 6097 boolean keepScrollBarsVisible = false; 6098 if (deltaX == 0 && deltaY == 0) { 6099 keepScrollBarsVisible = true; 6100 } else { 6101 mAverageAngle += 6102 (calculateDragAngle(deltaX, deltaY) - mAverageAngle) 6103 / MMA_WEIGHT_N; 6104 if (mSnapScrollMode != SNAP_NONE) { 6105 if (mSnapScrollMode == SNAP_Y) { 6106 // radical change means getting out of snap mode 6107 if (mAverageAngle < VSLOPE_TO_BREAK_SNAP) { 6108 mSnapScrollMode = SNAP_NONE; 6109 } 6110 } 6111 if (mSnapScrollMode == SNAP_X) { 6112 // radical change means getting out of snap mode 6113 if (mAverageAngle > HSLOPE_TO_BREAK_SNAP) { 6114 mSnapScrollMode = SNAP_NONE; 6115 } 6116 } 6117 } else { 6118 if (mAverageAngle < HSLOPE_TO_START_SNAP) { 6119 mSnapScrollMode = SNAP_X; 6120 mSnapPositive = deltaX > 0; 6121 mAverageAngle = (mAverageAngle + ANGLE_HORIZ) / 2; 6122 } else if (mAverageAngle > VSLOPE_TO_START_SNAP) { 6123 mSnapScrollMode = SNAP_Y; 6124 mSnapPositive = deltaY > 0; 6125 mAverageAngle = (mAverageAngle + ANGLE_VERT) / 2; 6126 } 6127 } 6128 if (mSnapScrollMode != SNAP_NONE) { 6129 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 6130 deltaY = 0; 6131 } else { 6132 deltaX = 0; 6133 } 6134 } 6135 if (deltaX * deltaX + deltaY * deltaY > mTouchSlopSquare) { 6136 mHeldMotionless = MOTIONLESS_FALSE; 6137 nativeSetIsScrolling(true); 6138 } else { 6139 mHeldMotionless = MOTIONLESS_TRUE; 6140 nativeSetIsScrolling(false); 6141 keepScrollBarsVisible = true; 6142 } 6143 6144 mLastTouchTime = eventTime; 6145 boolean allDrag = doDrag(deltaX, deltaY); 6146 if (allDrag) { 6147 mLastTouchX = x; 6148 mLastTouchY = y; 6149 } else { 6150 int contentDeltaX = (int)Math.floor(deltaX * mZoomManager.getInvScale()); 6151 int roundedDeltaX = contentToViewDimension(contentDeltaX); 6152 int contentDeltaY = (int)Math.floor(deltaY * mZoomManager.getInvScale()); 6153 int roundedDeltaY = contentToViewDimension(contentDeltaY); 6154 mLastTouchX -= roundedDeltaX; 6155 mLastTouchY -= roundedDeltaY; 6156 } 6157 } 6158 6159 // Turn off scrollbars when dragging a layer. 6160 if (keepScrollBarsVisible && 6161 mTouchMode != TOUCH_DRAG_LAYER_MODE && 6162 mTouchMode != TOUCH_DRAG_TEXT_MODE) { 6163 if (mHeldMotionless != MOTIONLESS_TRUE) { 6164 mHeldMotionless = MOTIONLESS_TRUE; 6165 invalidate(); 6166 } 6167 // keep the scrollbar on the screen even there is no scroll 6168 mWebViewPrivate.awakenScrollBars(ViewConfiguration.getScrollDefaultDelay(), 6169 false); 6170 // Post a message so that we'll keep them alive while we're not scrolling. 6171 mPrivateHandler.sendMessageDelayed(mPrivateHandler 6172 .obtainMessage(AWAKEN_SCROLL_BARS), 6173 ViewConfiguration.getScrollDefaultDelay()); 6174 // return false to indicate that we can't pan out of the 6175 // view space 6176 return; 6177 } else { 6178 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 6179 } 6180 break; 6181 } 6182 case MotionEvent.ACTION_UP: { 6183 endScrollEdit(); 6184 if (!mConfirmMove && mIsEditingText && mSelectionStarted && 6185 mIsCaretSelection) { 6186 showPasteWindow(); 6187 stopTouch(); 6188 break; 6189 } 6190 mLastTouchUpTime = eventTime; 6191 if (mSentAutoScrollMessage) { 6192 mAutoScrollX = mAutoScrollY = 0; 6193 } 6194 switch (mTouchMode) { 6195 case TOUCH_DOUBLE_TAP_MODE: // double tap 6196 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6197 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6198 mTouchMode = TOUCH_DONE_MODE; 6199 break; 6200 case TOUCH_INIT_MODE: // tap 6201 case TOUCH_SHORTPRESS_START_MODE: 6202 case TOUCH_SHORTPRESS_MODE: 6203 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6204 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6205 if (!mConfirmMove) { 6206 if (mSelectingText) { 6207 // tapping on selection or controls does nothing 6208 if (!mSelectionStarted) { 6209 selectionDone(); 6210 } 6211 break; 6212 } 6213 // only trigger double tap if the WebView is 6214 // scalable 6215 if (mTouchMode == TOUCH_INIT_MODE 6216 && (canZoomIn() || canZoomOut())) { 6217 mPrivateHandler.sendEmptyMessageDelayed( 6218 RELEASE_SINGLE_TAP, ViewConfiguration 6219 .getDoubleTapTimeout()); 6220 } 6221 break; 6222 } 6223 case TOUCH_DRAG_MODE: 6224 case TOUCH_DRAG_LAYER_MODE: 6225 case TOUCH_DRAG_TEXT_MODE: 6226 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 6227 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 6228 // if the user waits a while w/o moving before the 6229 // up, we don't want to do a fling 6230 if (eventTime - mLastTouchTime <= MIN_FLING_TIME) { 6231 if (mVelocityTracker == null) { 6232 Log.e(LOGTAG, "Got null mVelocityTracker"); 6233 } else { 6234 mVelocityTracker.addMovement(event); 6235 } 6236 // set to MOTIONLESS_IGNORE so that it won't keep 6237 // removing and sending message in 6238 // drawCoreAndCursorRing() 6239 mHeldMotionless = MOTIONLESS_IGNORE; 6240 doFling(); 6241 break; 6242 } else { 6243 if (mScroller.springBack(getScrollX(), getScrollY(), 0, 6244 computeMaxScrollX(), 0, 6245 computeMaxScrollY())) { 6246 invalidate(); 6247 } 6248 } 6249 // redraw in high-quality, as we're done dragging 6250 mHeldMotionless = MOTIONLESS_TRUE; 6251 invalidate(); 6252 // fall through 6253 case TOUCH_DRAG_START_MODE: 6254 // TOUCH_DRAG_START_MODE should not happen for the real 6255 // device as we almost certain will get a MOVE. But this 6256 // is possible on emulator. 6257 mLastVelocity = 0; 6258 WebViewCore.resumePriority(); 6259 if (!mSelectingText) { 6260 WebViewCore.resumeUpdatePicture(mWebViewCore); 6261 } 6262 break; 6263 } 6264 stopTouch(); 6265 break; 6266 } 6267 case MotionEvent.ACTION_CANCEL: { 6268 if (mTouchMode == TOUCH_DRAG_MODE) { 6269 mScroller.springBack(getScrollX(), getScrollY(), 0, 6270 computeMaxScrollX(), 0, computeMaxScrollY()); 6271 invalidate(); 6272 } 6273 cancelTouch(); 6274 break; 6275 } 6276 } 6277 } 6278 6279 /** 6280 * Returns the text scroll speed in content pixels per millisecond based on 6281 * the touch location. 6282 * @param coordinate The x or y touch coordinate in content space 6283 * @param min The minimum coordinate (x or y) of the edit content bounds 6284 * @param max The maximum coordinate (x or y) of the edit content bounds 6285 */ 6286 private static float getTextScrollSpeed(int coordinate, int min, int max) { 6287 if (coordinate < min) { 6288 return (coordinate - min) * TEXT_SCROLL_RATE; 6289 } else if (coordinate >= max) { 6290 return (coordinate - max + 1) * TEXT_SCROLL_RATE; 6291 } else { 6292 return 0.0f; 6293 } 6294 } 6295 6296 private void beginScrollEdit() { 6297 if (mLastEditScroll == 0) { 6298 mLastEditScroll = SystemClock.uptimeMillis() - 6299 TEXT_SCROLL_FIRST_SCROLL_MS; 6300 scrollEditWithCursor(); 6301 } 6302 } 6303 6304 private void endScrollEdit() { 6305 mLastEditScroll = 0; 6306 } 6307 6308 private static int getTextScrollDelta(float speed, long deltaT) { 6309 float distance = speed * deltaT; 6310 int intDistance = (int)Math.floor(distance); 6311 float probability = distance - intDistance; 6312 if (Math.random() < probability) { 6313 intDistance++; 6314 } 6315 return intDistance; 6316 } 6317 /** 6318 * Scrolls edit text a distance based on the last touch point, 6319 * the last scroll time, and the edit text content bounds. 6320 */ 6321 private void scrollEditWithCursor() { 6322 if (mLastEditScroll != 0) { 6323 int x = viewToContentX(mLastTouchX + getScrollX() + mSelectDraggingOffset.x); 6324 float scrollSpeedX = getTextScrollSpeed(x, mEditTextContentBounds.left, 6325 mEditTextContentBounds.right); 6326 int y = viewToContentY(mLastTouchY + getScrollY() + mSelectDraggingOffset.y); 6327 float scrollSpeedY = getTextScrollSpeed(y, mEditTextContentBounds.top, 6328 mEditTextContentBounds.bottom); 6329 if (scrollSpeedX == 0.0f && scrollSpeedY == 0.0f) { 6330 endScrollEdit(); 6331 } else { 6332 long currentTime = SystemClock.uptimeMillis(); 6333 long timeSinceLastUpdate = currentTime - mLastEditScroll; 6334 int deltaX = getTextScrollDelta(scrollSpeedX, timeSinceLastUpdate); 6335 int deltaY = getTextScrollDelta(scrollSpeedY, timeSinceLastUpdate); 6336 mLastEditScroll = currentTime; 6337 if (deltaX == 0 && deltaY == 0) { 6338 // By probability no text scroll this time. Try again later. 6339 mPrivateHandler.sendEmptyMessageDelayed(SCROLL_EDIT_TEXT, 6340 TEXT_SCROLL_FIRST_SCROLL_MS); 6341 } else { 6342 int scrollX = getTextScrollX() + deltaX; 6343 scrollX = Math.min(getMaxTextScrollX(), scrollX); 6344 scrollX = Math.max(0, scrollX); 6345 int scrollY = getTextScrollY() + deltaY; 6346 scrollY = Math.min(getMaxTextScrollY(), scrollY); 6347 scrollY = Math.max(0, scrollY); 6348 scrollEditText(scrollX, scrollY); 6349 int cursorX = mSelectDraggingCursor.x; 6350 int cursorY = mSelectDraggingCursor.y; 6351 mSelectDraggingCursor.set(x - deltaX, y - deltaY); 6352 updateWebkitSelection(); 6353 mSelectDraggingCursor.set(cursorX, cursorY); 6354 } 6355 } 6356 } 6357 } 6358 6359 private void startTouch(float x, float y, long eventTime) { 6360 // Remember where the motion event started 6361 mStartTouchX = mLastTouchX = Math.round(x); 6362 mStartTouchY = mLastTouchY = Math.round(y); 6363 mLastTouchTime = eventTime; 6364 mVelocityTracker = VelocityTracker.obtain(); 6365 mSnapScrollMode = SNAP_NONE; 6366 } 6367 6368 private void startDrag() { 6369 WebViewCore.reducePriority(); 6370 // to get better performance, pause updating the picture 6371 WebViewCore.pauseUpdatePicture(mWebViewCore); 6372 nativeSetIsScrolling(true); 6373 6374 if (mHorizontalScrollBarMode != SCROLLBAR_ALWAYSOFF 6375 || mVerticalScrollBarMode != SCROLLBAR_ALWAYSOFF) { 6376 mZoomManager.invokeZoomPicker(); 6377 } 6378 } 6379 6380 private boolean doDrag(int deltaX, int deltaY) { 6381 boolean allDrag = true; 6382 if ((deltaX | deltaY) != 0) { 6383 int oldX = getScrollX(); 6384 int oldY = getScrollY(); 6385 int rangeX = computeMaxScrollX(); 6386 int rangeY = computeMaxScrollY(); 6387 final int contentX = (int)Math.floor(deltaX * mZoomManager.getInvScale()); 6388 final int contentY = (int)Math.floor(deltaY * mZoomManager.getInvScale()); 6389 6390 // Assume page scrolling and change below if we're wrong 6391 mTouchMode = TOUCH_DRAG_MODE; 6392 6393 // Check special scrolling before going to main page scrolling. 6394 if (mIsEditingText && mTouchInEditText && canTextScroll(deltaX, deltaY)) { 6395 // Edit text scrolling 6396 oldX = getTextScrollX(); 6397 rangeX = getMaxTextScrollX(); 6398 deltaX = contentX; 6399 oldY = getTextScrollY(); 6400 rangeY = getMaxTextScrollY(); 6401 deltaY = contentY; 6402 mTouchMode = TOUCH_DRAG_TEXT_MODE; 6403 allDrag = false; 6404 } else if (mCurrentScrollingLayerId != 0) { 6405 // Check the scrolling bounds to see if we will actually do any 6406 // scrolling. The rectangle is in document coordinates. 6407 final int maxX = mScrollingLayerRect.right; 6408 final int maxY = mScrollingLayerRect.bottom; 6409 final int resultX = Math.max(0, 6410 Math.min(mScrollingLayerRect.left + contentX, maxX)); 6411 final int resultY = Math.max(0, 6412 Math.min(mScrollingLayerRect.top + contentY, maxY)); 6413 6414 if (resultX != mScrollingLayerRect.left || 6415 resultY != mScrollingLayerRect.top) { 6416 // In case we switched to dragging the page. 6417 mTouchMode = TOUCH_DRAG_LAYER_MODE; 6418 deltaX = contentX; 6419 deltaY = contentY; 6420 oldX = mScrollingLayerRect.left; 6421 oldY = mScrollingLayerRect.top; 6422 rangeX = maxX; 6423 rangeY = maxY; 6424 allDrag = false; 6425 } 6426 } 6427 6428 if (mOverScrollGlow != null) { 6429 mOverScrollGlow.setOverScrollDeltas(deltaX, deltaY); 6430 } 6431 6432 mWebViewPrivate.overScrollBy(deltaX, deltaY, oldX, oldY, 6433 rangeX, rangeY, 6434 mOverscrollDistance, mOverscrollDistance, true); 6435 if (mOverScrollGlow != null && mOverScrollGlow.isAnimating()) { 6436 invalidate(); 6437 } 6438 } 6439 mZoomManager.keepZoomPickerVisible(); 6440 return allDrag; 6441 } 6442 6443 private void stopTouch() { 6444 if (mScroller.isFinished() && !mSelectingText 6445 && (mTouchMode == TOUCH_DRAG_MODE 6446 || mTouchMode == TOUCH_DRAG_LAYER_MODE)) { 6447 WebViewCore.resumePriority(); 6448 WebViewCore.resumeUpdatePicture(mWebViewCore); 6449 nativeSetIsScrolling(false); 6450 } 6451 6452 // we also use mVelocityTracker == null to tell us that we are 6453 // not "moving around", so we can take the slower/prettier 6454 // mode in the drawing code 6455 if (mVelocityTracker != null) { 6456 mVelocityTracker.recycle(); 6457 mVelocityTracker = null; 6458 } 6459 6460 // Release any pulled glows 6461 if (mOverScrollGlow != null) { 6462 mOverScrollGlow.releaseAll(); 6463 } 6464 6465 if (mSelectingText) { 6466 mSelectionStarted = false; 6467 syncSelectionCursors(); 6468 if (mIsCaretSelection) { 6469 resetCaretTimer(); 6470 } 6471 invalidate(); 6472 } 6473 } 6474 6475 private void cancelTouch() { 6476 // we also use mVelocityTracker == null to tell us that we are 6477 // not "moving around", so we can take the slower/prettier 6478 // mode in the drawing code 6479 if (mVelocityTracker != null) { 6480 mVelocityTracker.recycle(); 6481 mVelocityTracker = null; 6482 } 6483 6484 if ((mTouchMode == TOUCH_DRAG_MODE 6485 || mTouchMode == TOUCH_DRAG_LAYER_MODE) && !mSelectingText) { 6486 WebViewCore.resumePriority(); 6487 WebViewCore.resumeUpdatePicture(mWebViewCore); 6488 nativeSetIsScrolling(false); 6489 } 6490 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 6491 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 6492 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 6493 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 6494 removeTouchHighlight(); 6495 mHeldMotionless = MOTIONLESS_TRUE; 6496 mTouchMode = TOUCH_DONE_MODE; 6497 } 6498 6499 private void snapDraggingCursor() { 6500 float scale = scaleAlongSegment( 6501 mSelectDraggingCursor.x, mSelectDraggingCursor.y, 6502 mSelectDraggingTextQuad.p4, mSelectDraggingTextQuad.p3); 6503 // clamp scale to ensure point is on the bottom segment 6504 scale = Math.max(0.0f, scale); 6505 scale = Math.min(scale, 1.0f); 6506 float newX = scaleCoordinate(scale, 6507 mSelectDraggingTextQuad.p4.x, mSelectDraggingTextQuad.p3.x); 6508 float newY = scaleCoordinate(scale, 6509 mSelectDraggingTextQuad.p4.y, mSelectDraggingTextQuad.p3.y); 6510 int x = Math.max(mEditTextContentBounds.left, 6511 Math.min(mEditTextContentBounds.right, Math.round(newX))); 6512 int y = Math.max(mEditTextContentBounds.top, 6513 Math.min(mEditTextContentBounds.bottom, Math.round(newY))); 6514 mSelectDraggingCursor.set(x, y); 6515 } 6516 6517 private static float scaleCoordinate(float scale, float coord1, float coord2) { 6518 float diff = coord2 - coord1; 6519 return coord1 + (scale * diff); 6520 } 6521 6522 @Override 6523 public boolean onGenericMotionEvent(MotionEvent event) { 6524 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 6525 switch (event.getAction()) { 6526 case MotionEvent.ACTION_SCROLL: { 6527 final float vscroll; 6528 final float hscroll; 6529 if ((event.getMetaState() & KeyEvent.META_SHIFT_ON) != 0) { 6530 vscroll = 0; 6531 hscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 6532 } else { 6533 vscroll = -event.getAxisValue(MotionEvent.AXIS_VSCROLL); 6534 hscroll = event.getAxisValue(MotionEvent.AXIS_HSCROLL); 6535 } 6536 if (hscroll != 0 || vscroll != 0) { 6537 final int vdelta = (int) (vscroll * 6538 mWebViewPrivate.getVerticalScrollFactor()); 6539 final int hdelta = (int) (hscroll * 6540 mWebViewPrivate.getHorizontalScrollFactor()); 6541 if (pinScrollBy(hdelta, vdelta, false, 0)) { 6542 return true; 6543 } 6544 } 6545 } 6546 } 6547 } 6548 return mWebViewPrivate.super_onGenericMotionEvent(event); 6549 } 6550 6551 private long mTrackballFirstTime = 0; 6552 private long mTrackballLastTime = 0; 6553 private float mTrackballRemainsX = 0.0f; 6554 private float mTrackballRemainsY = 0.0f; 6555 private int mTrackballXMove = 0; 6556 private int mTrackballYMove = 0; 6557 private boolean mSelectingText = false; 6558 private boolean mSelectionStarted = false; 6559 private static final int TRACKBALL_KEY_TIMEOUT = 1000; 6560 private static final int TRACKBALL_TIMEOUT = 200; 6561 private static final int TRACKBALL_WAIT = 100; 6562 private static final int TRACKBALL_SCALE = 400; 6563 private static final int TRACKBALL_SCROLL_COUNT = 5; 6564 private static final int TRACKBALL_MOVE_COUNT = 10; 6565 private static final int TRACKBALL_MULTIPLIER = 3; 6566 private static final int SELECT_CURSOR_OFFSET = 16; 6567 private static final int SELECT_SCROLL = 5; 6568 private int mSelectX = 0; 6569 private int mSelectY = 0; 6570 private boolean mTrackballDown = false; 6571 private long mTrackballUpTime = 0; 6572 private long mLastCursorTime = 0; 6573 private Rect mLastCursorBounds; 6574 6575 // Set by default; BrowserActivity clears to interpret trackball data 6576 // directly for movement. Currently, the framework only passes 6577 // arrow key events, not trackball events, from one child to the next 6578 private boolean mMapTrackballToArrowKeys = true; 6579 6580 private DrawData mDelaySetPicture; 6581 private DrawData mLoadedPicture; 6582 6583 public void setMapTrackballToArrowKeys(boolean setMap) { 6584 mMapTrackballToArrowKeys = setMap; 6585 } 6586 6587 void resetTrackballTime() { 6588 mTrackballLastTime = 0; 6589 } 6590 6591 @Override 6592 public boolean onTrackballEvent(MotionEvent ev) { 6593 long time = ev.getEventTime(); 6594 if ((ev.getMetaState() & KeyEvent.META_ALT_ON) != 0) { 6595 if (ev.getY() > 0) pageDown(true); 6596 if (ev.getY() < 0) pageUp(true); 6597 return true; 6598 } 6599 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 6600 if (mSelectingText) { 6601 return true; // discard press if copy in progress 6602 } 6603 mTrackballDown = true; 6604 if (mNativeClass == 0) { 6605 return false; 6606 } 6607 if (DebugFlags.WEB_VIEW) { 6608 Log.v(LOGTAG, "onTrackballEvent down ev=" + ev 6609 + " time=" + time 6610 + " mLastCursorTime=" + mLastCursorTime); 6611 } 6612 if (mWebView.isInTouchMode()) mWebView.requestFocusFromTouch(); 6613 return false; // let common code in onKeyDown at it 6614 } 6615 if (ev.getAction() == MotionEvent.ACTION_UP) { 6616 // LONG_PRESS_CENTER is set in common onKeyDown 6617 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 6618 mTrackballDown = false; 6619 mTrackballUpTime = time; 6620 if (mSelectingText) { 6621 copySelection(); 6622 selectionDone(); 6623 return true; // discard press if copy in progress 6624 } 6625 if (DebugFlags.WEB_VIEW) { 6626 Log.v(LOGTAG, "onTrackballEvent up ev=" + ev 6627 + " time=" + time 6628 ); 6629 } 6630 return false; // let common code in onKeyUp at it 6631 } 6632 if ((mMapTrackballToArrowKeys && (ev.getMetaState() & KeyEvent.META_SHIFT_ON) == 0) || 6633 AccessibilityManager.getInstance(mContext).isEnabled()) { 6634 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit"); 6635 return false; 6636 } 6637 if (mTrackballDown) { 6638 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent down quit"); 6639 return true; // discard move if trackball is down 6640 } 6641 if (time - mTrackballUpTime < TRACKBALL_TIMEOUT) { 6642 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent up timeout quit"); 6643 return true; 6644 } 6645 // TODO: alternatively we can do panning as touch does 6646 switchOutDrawHistory(); 6647 if (time - mTrackballLastTime > TRACKBALL_TIMEOUT) { 6648 if (DebugFlags.WEB_VIEW) { 6649 Log.v(LOGTAG, "onTrackballEvent time=" 6650 + time + " last=" + mTrackballLastTime); 6651 } 6652 mTrackballFirstTime = time; 6653 mTrackballXMove = mTrackballYMove = 0; 6654 } 6655 mTrackballLastTime = time; 6656 if (DebugFlags.WEB_VIEW) { 6657 Log.v(LOGTAG, "onTrackballEvent ev=" + ev + " time=" + time); 6658 } 6659 mTrackballRemainsX += ev.getX(); 6660 mTrackballRemainsY += ev.getY(); 6661 doTrackball(time, ev.getMetaState()); 6662 return true; 6663 } 6664 6665 private int scaleTrackballX(float xRate, int width) { 6666 int xMove = (int) (xRate / TRACKBALL_SCALE * width); 6667 int nextXMove = xMove; 6668 if (xMove > 0) { 6669 if (xMove > mTrackballXMove) { 6670 xMove -= mTrackballXMove; 6671 } 6672 } else if (xMove < mTrackballXMove) { 6673 xMove -= mTrackballXMove; 6674 } 6675 mTrackballXMove = nextXMove; 6676 return xMove; 6677 } 6678 6679 private int scaleTrackballY(float yRate, int height) { 6680 int yMove = (int) (yRate / TRACKBALL_SCALE * height); 6681 int nextYMove = yMove; 6682 if (yMove > 0) { 6683 if (yMove > mTrackballYMove) { 6684 yMove -= mTrackballYMove; 6685 } 6686 } else if (yMove < mTrackballYMove) { 6687 yMove -= mTrackballYMove; 6688 } 6689 mTrackballYMove = nextYMove; 6690 return yMove; 6691 } 6692 6693 private int keyCodeToSoundsEffect(int keyCode) { 6694 switch(keyCode) { 6695 case KeyEvent.KEYCODE_DPAD_UP: 6696 return SoundEffectConstants.NAVIGATION_UP; 6697 case KeyEvent.KEYCODE_DPAD_RIGHT: 6698 return SoundEffectConstants.NAVIGATION_RIGHT; 6699 case KeyEvent.KEYCODE_DPAD_DOWN: 6700 return SoundEffectConstants.NAVIGATION_DOWN; 6701 case KeyEvent.KEYCODE_DPAD_LEFT: 6702 return SoundEffectConstants.NAVIGATION_LEFT; 6703 } 6704 return 0; 6705 } 6706 6707 private void doTrackball(long time, int metaState) { 6708 int elapsed = (int) (mTrackballLastTime - mTrackballFirstTime); 6709 if (elapsed == 0) { 6710 elapsed = TRACKBALL_TIMEOUT; 6711 } 6712 float xRate = mTrackballRemainsX * 1000 / elapsed; 6713 float yRate = mTrackballRemainsY * 1000 / elapsed; 6714 int viewWidth = getViewWidth(); 6715 int viewHeight = getViewHeight(); 6716 float ax = Math.abs(xRate); 6717 float ay = Math.abs(yRate); 6718 float maxA = Math.max(ax, ay); 6719 if (DebugFlags.WEB_VIEW) { 6720 Log.v(LOGTAG, "doTrackball elapsed=" + elapsed 6721 + " xRate=" + xRate 6722 + " yRate=" + yRate 6723 + " mTrackballRemainsX=" + mTrackballRemainsX 6724 + " mTrackballRemainsY=" + mTrackballRemainsY); 6725 } 6726 int width = mContentWidth - viewWidth; 6727 int height = mContentHeight - viewHeight; 6728 if (width < 0) width = 0; 6729 if (height < 0) height = 0; 6730 ax = Math.abs(mTrackballRemainsX * TRACKBALL_MULTIPLIER); 6731 ay = Math.abs(mTrackballRemainsY * TRACKBALL_MULTIPLIER); 6732 maxA = Math.max(ax, ay); 6733 int count = Math.max(0, (int) maxA); 6734 int oldScrollX = getScrollX(); 6735 int oldScrollY = getScrollY(); 6736 if (count > 0) { 6737 int selectKeyCode = ax < ay ? mTrackballRemainsY < 0 ? 6738 KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN : 6739 mTrackballRemainsX < 0 ? KeyEvent.KEYCODE_DPAD_LEFT : 6740 KeyEvent.KEYCODE_DPAD_RIGHT; 6741 count = Math.min(count, TRACKBALL_MOVE_COUNT); 6742 if (DebugFlags.WEB_VIEW) { 6743 Log.v(LOGTAG, "doTrackball keyCode=" + selectKeyCode 6744 + " count=" + count 6745 + " mTrackballRemainsX=" + mTrackballRemainsX 6746 + " mTrackballRemainsY=" + mTrackballRemainsY); 6747 } 6748 if (mNativeClass != 0) { 6749 for (int i = 0; i < count; i++) { 6750 letPageHandleNavKey(selectKeyCode, time, true, metaState); 6751 } 6752 letPageHandleNavKey(selectKeyCode, time, false, metaState); 6753 } 6754 mTrackballRemainsX = mTrackballRemainsY = 0; 6755 } 6756 if (count >= TRACKBALL_SCROLL_COUNT) { 6757 int xMove = scaleTrackballX(xRate, width); 6758 int yMove = scaleTrackballY(yRate, height); 6759 if (DebugFlags.WEB_VIEW) { 6760 Log.v(LOGTAG, "doTrackball pinScrollBy" 6761 + " count=" + count 6762 + " xMove=" + xMove + " yMove=" + yMove 6763 + " mScrollX-oldScrollX=" + (getScrollX()-oldScrollX) 6764 + " mScrollY-oldScrollY=" + (getScrollY()-oldScrollY) 6765 ); 6766 } 6767 if (Math.abs(getScrollX() - oldScrollX) > Math.abs(xMove)) { 6768 xMove = 0; 6769 } 6770 if (Math.abs(getScrollY() - oldScrollY) > Math.abs(yMove)) { 6771 yMove = 0; 6772 } 6773 if (xMove != 0 || yMove != 0) { 6774 pinScrollBy(xMove, yMove, true, 0); 6775 } 6776 } 6777 } 6778 6779 /** 6780 * Compute the maximum horizontal scroll position. Used by {@link OverScrollGlow}. 6781 * @return Maximum horizontal scroll position within real content 6782 */ 6783 int computeMaxScrollX() { 6784 return Math.max(computeRealHorizontalScrollRange() - getViewWidth(), 0); 6785 } 6786 6787 /** 6788 * Compute the maximum vertical scroll position. Used by {@link OverScrollGlow}. 6789 * @return Maximum vertical scroll position within real content 6790 */ 6791 int computeMaxScrollY() { 6792 return Math.max(computeRealVerticalScrollRange() + getTitleHeight() 6793 - getViewHeightWithTitle(), 0); 6794 } 6795 6796 boolean updateScrollCoordinates(int x, int y) { 6797 int oldX = getScrollX(); 6798 int oldY = getScrollY(); 6799 setScrollXRaw(x); 6800 setScrollYRaw(y); 6801 if (oldX != getScrollX() || oldY != getScrollY()) { 6802 mWebViewPrivate.onScrollChanged(getScrollX(), getScrollY(), oldX, oldY); 6803 return true; 6804 } else { 6805 return false; 6806 } 6807 } 6808 6809 public void flingScroll(int vx, int vy) { 6810 mScroller.fling(getScrollX(), getScrollY(), vx, vy, 0, computeMaxScrollX(), 0, 6811 computeMaxScrollY(), mOverflingDistance, mOverflingDistance); 6812 invalidate(); 6813 } 6814 6815 private void doFling() { 6816 if (mVelocityTracker == null) { 6817 return; 6818 } 6819 int maxX = computeMaxScrollX(); 6820 int maxY = computeMaxScrollY(); 6821 6822 mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling); 6823 int vx = (int) mVelocityTracker.getXVelocity(); 6824 int vy = (int) mVelocityTracker.getYVelocity(); 6825 6826 int scrollX = getScrollX(); 6827 int scrollY = getScrollY(); 6828 int overscrollDistance = mOverscrollDistance; 6829 int overflingDistance = mOverflingDistance; 6830 6831 // Use the layer's scroll data if applicable. 6832 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 6833 scrollX = mScrollingLayerRect.left; 6834 scrollY = mScrollingLayerRect.top; 6835 maxX = mScrollingLayerRect.right; 6836 maxY = mScrollingLayerRect.bottom; 6837 // No overscrolling for layers. 6838 overscrollDistance = overflingDistance = 0; 6839 } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { 6840 scrollX = getTextScrollX(); 6841 scrollY = getTextScrollY(); 6842 maxX = getMaxTextScrollX(); 6843 maxY = getMaxTextScrollY(); 6844 // No overscrolling for edit text. 6845 overscrollDistance = overflingDistance = 0; 6846 } 6847 6848 if (mSnapScrollMode != SNAP_NONE) { 6849 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 6850 vy = 0; 6851 } else { 6852 vx = 0; 6853 } 6854 } 6855 if ((maxX == 0 && vy == 0) || (maxY == 0 && vx == 0)) { 6856 WebViewCore.resumePriority(); 6857 if (!mSelectingText) { 6858 WebViewCore.resumeUpdatePicture(mWebViewCore); 6859 } 6860 if (mScroller.springBack(scrollX, scrollY, 0, maxX, 0, maxY)) { 6861 invalidate(); 6862 } 6863 return; 6864 } 6865 float currentVelocity = mScroller.getCurrVelocity(); 6866 float velocity = (float) Math.hypot(vx, vy); 6867 if (mLastVelocity > 0 && currentVelocity > 0 && velocity 6868 > mLastVelocity * MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION) { 6869 float deltaR = (float) (Math.abs(Math.atan2(mLastVelY, mLastVelX) 6870 - Math.atan2(vy, vx))); 6871 final float circle = (float) (Math.PI) * 2.0f; 6872 if (deltaR > circle * 0.9f || deltaR < circle * 0.1f) { 6873 vx += currentVelocity * mLastVelX / mLastVelocity; 6874 vy += currentVelocity * mLastVelY / mLastVelocity; 6875 velocity = (float) Math.hypot(vx, vy); 6876 if (DebugFlags.WEB_VIEW) { 6877 Log.v(LOGTAG, "doFling vx= " + vx + " vy=" + vy); 6878 } 6879 } else if (DebugFlags.WEB_VIEW) { 6880 Log.v(LOGTAG, "doFling missed " + deltaR / circle); 6881 } 6882 } else if (DebugFlags.WEB_VIEW) { 6883 Log.v(LOGTAG, "doFling start last=" + mLastVelocity 6884 + " current=" + currentVelocity 6885 + " vx=" + vx + " vy=" + vy 6886 + " maxX=" + maxX + " maxY=" + maxY 6887 + " scrollX=" + scrollX + " scrollY=" + scrollY 6888 + " layer=" + mCurrentScrollingLayerId); 6889 } 6890 6891 // Allow sloppy flings without overscrolling at the edges. 6892 if ((scrollX == 0 || scrollX == maxX) && Math.abs(vx) < Math.abs(vy)) { 6893 vx = 0; 6894 } 6895 if ((scrollY == 0 || scrollY == maxY) && Math.abs(vy) < Math.abs(vx)) { 6896 vy = 0; 6897 } 6898 6899 if (overscrollDistance < overflingDistance) { 6900 if ((vx > 0 && scrollX == -overscrollDistance) || 6901 (vx < 0 && scrollX == maxX + overscrollDistance)) { 6902 vx = 0; 6903 } 6904 if ((vy > 0 && scrollY == -overscrollDistance) || 6905 (vy < 0 && scrollY == maxY + overscrollDistance)) { 6906 vy = 0; 6907 } 6908 } 6909 6910 mLastVelX = vx; 6911 mLastVelY = vy; 6912 mLastVelocity = velocity; 6913 6914 // no horizontal overscroll if the content just fits 6915 mScroller.fling(scrollX, scrollY, -vx, -vy, 0, maxX, 0, maxY, 6916 maxX == 0 ? 0 : overflingDistance, overflingDistance); 6917 // Duration is calculated based on velocity. With range boundaries and overscroll 6918 // we may not know how long the final animation will take. (Hence the deprecation 6919 // warning on the call below.) It's not a big deal for scroll bars but if webcore 6920 // resumes during this effect we will take a performance hit. See computeScroll; 6921 // we resume webcore there when the animation is finished. 6922 final int time = mScroller.getDuration(); 6923 6924 // Suppress scrollbars for layer scrolling. 6925 if (mTouchMode != TOUCH_DRAG_LAYER_MODE && mTouchMode != TOUCH_DRAG_TEXT_MODE) { 6926 mWebViewPrivate.awakenScrollBars(time); 6927 } 6928 6929 invalidate(); 6930 } 6931 6932 /** 6933 * See {@link WebView#getZoomControls()} 6934 */ 6935 @Override 6936 @Deprecated 6937 public View getZoomControls() { 6938 if (!getSettings().supportZoom()) { 6939 Log.w(LOGTAG, "This WebView doesn't support zoom."); 6940 return null; 6941 } 6942 return mZoomManager.getExternalZoomPicker(); 6943 } 6944 6945 void dismissZoomControl() { 6946 mZoomManager.dismissZoomPicker(); 6947 } 6948 6949 float getDefaultZoomScale() { 6950 return mZoomManager.getDefaultScale(); 6951 } 6952 6953 /** 6954 * Return the overview scale of the WebView 6955 * @return The overview scale. 6956 */ 6957 float getZoomOverviewScale() { 6958 return mZoomManager.getZoomOverviewScale(); 6959 } 6960 6961 /** 6962 * See {@link WebView#canZoomIn()} 6963 */ 6964 @Override 6965 public boolean canZoomIn() { 6966 return mZoomManager.canZoomIn(); 6967 } 6968 6969 /** 6970 * See {@link WebView#canZoomOut()} 6971 */ 6972 @Override 6973 public boolean canZoomOut() { 6974 return mZoomManager.canZoomOut(); 6975 } 6976 6977 /** 6978 * See {@link WebView#zoomIn()} 6979 */ 6980 @Override 6981 public boolean zoomIn() { 6982 return mZoomManager.zoomIn(); 6983 } 6984 6985 /** 6986 * See {@link WebView#zoomOut()} 6987 */ 6988 @Override 6989 public boolean zoomOut() { 6990 return mZoomManager.zoomOut(); 6991 } 6992 6993 /* 6994 * Return true if the rect (e.g. plugin) is fully visible and maximized 6995 * inside the WebView. 6996 */ 6997 boolean isRectFitOnScreen(Rect rect) { 6998 final int rectWidth = rect.width(); 6999 final int rectHeight = rect.height(); 7000 final int viewWidth = getViewWidth(); 7001 final int viewHeight = getViewHeightWithTitle(); 7002 float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight / rectHeight); 7003 scale = mZoomManager.computeScaleWithLimits(scale); 7004 return !mZoomManager.willScaleTriggerZoom(scale) 7005 && contentToViewX(rect.left) >= getScrollX() 7006 && contentToViewX(rect.right) <= getScrollX() + viewWidth 7007 && contentToViewY(rect.top) >= getScrollY() 7008 && contentToViewY(rect.bottom) <= getScrollY() + viewHeight; 7009 } 7010 7011 /* 7012 * Maximize and center the rectangle, specified in the document coordinate 7013 * space, inside the WebView. If the zoom doesn't need to be changed, do an 7014 * animated scroll to center it. If the zoom needs to be changed, find the 7015 * zoom center and do a smooth zoom transition. The rect is in document 7016 * coordinates 7017 */ 7018 void centerFitRect(Rect rect) { 7019 final int rectWidth = rect.width(); 7020 final int rectHeight = rect.height(); 7021 final int viewWidth = getViewWidth(); 7022 final int viewHeight = getViewHeightWithTitle(); 7023 float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight 7024 / rectHeight); 7025 scale = mZoomManager.computeScaleWithLimits(scale); 7026 if (!mZoomManager.willScaleTriggerZoom(scale)) { 7027 pinScrollTo(contentToViewX(rect.left + rectWidth / 2) - viewWidth / 2, 7028 contentToViewY(rect.top + rectHeight / 2) - viewHeight / 2, 7029 true, 0); 7030 } else { 7031 float actualScale = mZoomManager.getScale(); 7032 float oldScreenX = rect.left * actualScale - getScrollX(); 7033 float rectViewX = rect.left * scale; 7034 float rectViewWidth = rectWidth * scale; 7035 float newMaxWidth = mContentWidth * scale; 7036 float newScreenX = (viewWidth - rectViewWidth) / 2; 7037 // pin the newX to the WebView 7038 if (newScreenX > rectViewX) { 7039 newScreenX = rectViewX; 7040 } else if (newScreenX > (newMaxWidth - rectViewX - rectViewWidth)) { 7041 newScreenX = viewWidth - (newMaxWidth - rectViewX); 7042 } 7043 float zoomCenterX = (oldScreenX * scale - newScreenX * actualScale) 7044 / (scale - actualScale); 7045 float oldScreenY = rect.top * actualScale + getTitleHeight() 7046 - getScrollY(); 7047 float rectViewY = rect.top * scale + getTitleHeight(); 7048 float rectViewHeight = rectHeight * scale; 7049 float newMaxHeight = mContentHeight * scale + getTitleHeight(); 7050 float newScreenY = (viewHeight - rectViewHeight) / 2; 7051 // pin the newY to the WebView 7052 if (newScreenY > rectViewY) { 7053 newScreenY = rectViewY; 7054 } else if (newScreenY > (newMaxHeight - rectViewY - rectViewHeight)) { 7055 newScreenY = viewHeight - (newMaxHeight - rectViewY); 7056 } 7057 float zoomCenterY = (oldScreenY * scale - newScreenY * actualScale) 7058 / (scale - actualScale); 7059 mZoomManager.setZoomCenter(zoomCenterX, zoomCenterY); 7060 mZoomManager.startZoomAnimation(scale, false); 7061 } 7062 } 7063 7064 // Called by JNI to handle a touch on a node representing an email address, 7065 // address, or phone number 7066 private void overrideLoading(String url) { 7067 mCallbackProxy.uiOverrideUrlLoading(url); 7068 } 7069 7070 @Override 7071 public boolean requestFocus(int direction, Rect previouslyFocusedRect) { 7072 // FIXME: If a subwindow is showing find, and the user touches the 7073 // background window, it can steal focus. 7074 if (mFindIsUp) return false; 7075 boolean result = false; 7076 result = mWebViewPrivate.super_requestFocus(direction, previouslyFocusedRect); 7077 if (mWebViewCore.getSettings().getNeedInitialFocus() 7078 && !mWebView.isInTouchMode()) { 7079 // For cases such as GMail, where we gain focus from a direction, 7080 // we want to move to the first available link. 7081 // FIXME: If there are no visible links, we may not want to 7082 int fakeKeyDirection = 0; 7083 switch(direction) { 7084 case View.FOCUS_UP: 7085 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_UP; 7086 break; 7087 case View.FOCUS_DOWN: 7088 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_DOWN; 7089 break; 7090 case View.FOCUS_LEFT: 7091 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_LEFT; 7092 break; 7093 case View.FOCUS_RIGHT: 7094 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_RIGHT; 7095 break; 7096 default: 7097 return result; 7098 } 7099 mWebViewCore.sendMessage(EventHub.SET_INITIAL_FOCUS, fakeKeyDirection); 7100 } 7101 return result; 7102 } 7103 7104 @Override 7105 public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 7106 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 7107 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 7108 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 7109 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 7110 7111 int measuredHeight = heightSize; 7112 int measuredWidth = widthSize; 7113 7114 // Grab the content size from WebViewCore. 7115 int contentHeight = contentToViewDimension(mContentHeight); 7116 int contentWidth = contentToViewDimension(mContentWidth); 7117 7118// Log.d(LOGTAG, "------- measure " + heightMode); 7119 7120 if (heightMode != MeasureSpec.EXACTLY) { 7121 mHeightCanMeasure = true; 7122 measuredHeight = contentHeight; 7123 if (heightMode == MeasureSpec.AT_MOST) { 7124 // If we are larger than the AT_MOST height, then our height can 7125 // no longer be measured and we should scroll internally. 7126 if (measuredHeight > heightSize) { 7127 measuredHeight = heightSize; 7128 mHeightCanMeasure = false; 7129 measuredHeight |= View.MEASURED_STATE_TOO_SMALL; 7130 } 7131 } 7132 } else { 7133 mHeightCanMeasure = false; 7134 } 7135 if (mNativeClass != 0) { 7136 nativeSetHeightCanMeasure(mHeightCanMeasure); 7137 } 7138 // For the width, always use the given size unless unspecified. 7139 if (widthMode == MeasureSpec.UNSPECIFIED) { 7140 mWidthCanMeasure = true; 7141 measuredWidth = contentWidth; 7142 } else { 7143 if (measuredWidth < contentWidth) { 7144 measuredWidth |= View.MEASURED_STATE_TOO_SMALL; 7145 } 7146 mWidthCanMeasure = false; 7147 } 7148 7149 synchronized (this) { 7150 mWebViewPrivate.setMeasuredDimension(measuredWidth, measuredHeight); 7151 } 7152 } 7153 7154 @Override 7155 public boolean requestChildRectangleOnScreen(View child, 7156 Rect rect, 7157 boolean immediate) { 7158 if (mNativeClass == 0) { 7159 return false; 7160 } 7161 // don't scroll while in zoom animation. When it is done, we will adjust 7162 // the necessary components 7163 if (mZoomManager.isFixedLengthAnimationInProgress()) { 7164 return false; 7165 } 7166 7167 rect.offset(child.getLeft() - child.getScrollX(), 7168 child.getTop() - child.getScrollY()); 7169 7170 Rect content = new Rect(viewToContentX(getScrollX()), 7171 viewToContentY(getScrollY()), 7172 viewToContentX(getScrollX() + getWidth() 7173 - mWebView.getVerticalScrollbarWidth()), 7174 viewToContentY(getScrollY() + getViewHeightWithTitle())); 7175 int screenTop = contentToViewY(content.top); 7176 int screenBottom = contentToViewY(content.bottom); 7177 int height = screenBottom - screenTop; 7178 int scrollYDelta = 0; 7179 7180 if (rect.bottom > screenBottom) { 7181 int oneThirdOfScreenHeight = height / 3; 7182 if (rect.height() > 2 * oneThirdOfScreenHeight) { 7183 // If the rectangle is too tall to fit in the bottom two thirds 7184 // of the screen, place it at the top. 7185 scrollYDelta = rect.top - screenTop; 7186 } else { 7187 // If the rectangle will still fit on screen, we want its 7188 // top to be in the top third of the screen. 7189 scrollYDelta = rect.top - (screenTop + oneThirdOfScreenHeight); 7190 } 7191 } else if (rect.top < screenTop) { 7192 scrollYDelta = rect.top - screenTop; 7193 } 7194 7195 int screenLeft = contentToViewX(content.left); 7196 int screenRight = contentToViewX(content.right); 7197 int width = screenRight - screenLeft; 7198 int scrollXDelta = 0; 7199 7200 if (rect.right > screenRight && rect.left > screenLeft) { 7201 if (rect.width() > width) { 7202 scrollXDelta += (rect.left - screenLeft); 7203 } else { 7204 scrollXDelta += (rect.right - screenRight); 7205 } 7206 } else if (rect.left < screenLeft) { 7207 scrollXDelta -= (screenLeft - rect.left); 7208 } 7209 7210 if ((scrollYDelta | scrollXDelta) != 0) { 7211 return pinScrollBy(scrollXDelta, scrollYDelta, !immediate, 0); 7212 } 7213 7214 return false; 7215 } 7216 7217 /* package */ void replaceTextfieldText(int oldStart, int oldEnd, 7218 String replace, int newStart, int newEnd) { 7219 WebViewCore.ReplaceTextData arg = new WebViewCore.ReplaceTextData(); 7220 arg.mReplace = replace; 7221 arg.mNewStart = newStart; 7222 arg.mNewEnd = newEnd; 7223 mTextGeneration++; 7224 arg.mTextGeneration = mTextGeneration; 7225 sendBatchableInputMessage(EventHub.REPLACE_TEXT, oldStart, oldEnd, arg); 7226 } 7227 7228 /* package */ void passToJavaScript(String currentText, KeyEvent event) { 7229 // check if mWebViewCore has been destroyed 7230 if (mWebViewCore == null) { 7231 return; 7232 } 7233 WebViewCore.JSKeyData arg = new WebViewCore.JSKeyData(); 7234 arg.mEvent = event; 7235 arg.mCurrentText = currentText; 7236 // Increase our text generation number, and pass it to webcore thread 7237 mTextGeneration++; 7238 mWebViewCore.sendMessage(EventHub.PASS_TO_JS, mTextGeneration, 0, arg); 7239 // WebKit's document state is not saved until about to leave the page. 7240 // To make sure the host application, like Browser, has the up to date 7241 // document state when it goes to background, we force to save the 7242 // document state. 7243 mWebViewCore.removeMessages(EventHub.SAVE_DOCUMENT_STATE); 7244 mWebViewCore.sendMessageDelayed(EventHub.SAVE_DOCUMENT_STATE, null, 1000); 7245 } 7246 7247 public synchronized WebViewCore getWebViewCore() { 7248 return mWebViewCore; 7249 } 7250 7251 private boolean canTextScroll(int directionX, int directionY) { 7252 int scrollX = getTextScrollX(); 7253 int scrollY = getTextScrollY(); 7254 int maxScrollX = getMaxTextScrollX(); 7255 int maxScrollY = getMaxTextScrollY(); 7256 boolean canScrollX = (directionX > 0) 7257 ? (scrollX < maxScrollX) 7258 : (scrollX > 0); 7259 boolean canScrollY = (directionY > 0) 7260 ? (scrollY < maxScrollY) 7261 : (scrollY > 0); 7262 return canScrollX || canScrollY; 7263 } 7264 7265 private int getTextScrollX() { 7266 return -mEditTextContent.left; 7267 } 7268 7269 private int getTextScrollY() { 7270 return -mEditTextContent.top; 7271 } 7272 7273 private int getMaxTextScrollX() { 7274 return Math.max(0, mEditTextContent.width() - mEditTextContentBounds.width()); 7275 } 7276 7277 private int getMaxTextScrollY() { 7278 return Math.max(0, mEditTextContent.height() - mEditTextContentBounds.height()); 7279 } 7280 7281 //------------------------------------------------------------------------- 7282 // Methods can be called from a separate thread, like WebViewCore 7283 // If it needs to call the View system, it has to send message. 7284 //------------------------------------------------------------------------- 7285 7286 /** 7287 * General handler to receive message coming from webkit thread 7288 */ 7289 class PrivateHandler extends Handler implements WebViewInputDispatcher.UiCallbacks { 7290 @Override 7291 public void handleMessage(Message msg) { 7292 // exclude INVAL_RECT_MSG_ID since it is frequently output 7293 if (DebugFlags.WEB_VIEW && msg.what != INVAL_RECT_MSG_ID) { 7294 if (msg.what >= FIRST_PRIVATE_MSG_ID 7295 && msg.what <= LAST_PRIVATE_MSG_ID) { 7296 Log.v(LOGTAG, HandlerPrivateDebugString[msg.what 7297 - FIRST_PRIVATE_MSG_ID]); 7298 } else if (msg.what >= FIRST_PACKAGE_MSG_ID 7299 && msg.what <= LAST_PACKAGE_MSG_ID) { 7300 Log.v(LOGTAG, HandlerPackageDebugString[msg.what 7301 - FIRST_PACKAGE_MSG_ID]); 7302 } else { 7303 Log.v(LOGTAG, Integer.toString(msg.what)); 7304 } 7305 } 7306 if (mWebViewCore == null) { 7307 // after WebView's destroy() is called, skip handling messages. 7308 return; 7309 } 7310 if (mBlockWebkitViewMessages 7311 && msg.what != WEBCORE_INITIALIZED_MSG_ID) { 7312 // Blocking messages from webkit 7313 return; 7314 } 7315 switch (msg.what) { 7316 case REMEMBER_PASSWORD: { 7317 mDatabase.setUsernamePassword( 7318 msg.getData().getString("host"), 7319 msg.getData().getString("username"), 7320 msg.getData().getString("password")); 7321 ((Message) msg.obj).sendToTarget(); 7322 break; 7323 } 7324 case NEVER_REMEMBER_PASSWORD: { 7325 mDatabase.setUsernamePassword( 7326 msg.getData().getString("host"), null, null); 7327 ((Message) msg.obj).sendToTarget(); 7328 break; 7329 } 7330 case SCROLL_SELECT_TEXT: { 7331 if (mAutoScrollX == 0 && mAutoScrollY == 0) { 7332 mSentAutoScrollMessage = false; 7333 break; 7334 } 7335 if (mCurrentScrollingLayerId == 0) { 7336 pinScrollBy(mAutoScrollX, mAutoScrollY, true, 0); 7337 } else { 7338 scrollLayerTo(mScrollingLayerRect.left + mAutoScrollX, 7339 mScrollingLayerRect.top + mAutoScrollY); 7340 } 7341 sendEmptyMessageDelayed( 7342 SCROLL_SELECT_TEXT, SELECT_SCROLL_INTERVAL); 7343 break; 7344 } 7345 case SCROLL_TO_MSG_ID: { 7346 // arg1 = animate, arg2 = onlyIfImeIsShowing 7347 // obj = Point(x, y) 7348 if (msg.arg2 == 1) { 7349 // This scroll is intended to bring the textfield into 7350 // view, but is only necessary if the IME is showing 7351 InputMethodManager imm = InputMethodManager.peekInstance(); 7352 if (imm == null || !imm.isAcceptingText() 7353 || !imm.isActive(mWebView)) { 7354 break; 7355 } 7356 } 7357 final Point p = (Point) msg.obj; 7358 contentScrollTo(p.x, p.y, msg.arg1 == 1); 7359 break; 7360 } 7361 case UPDATE_ZOOM_RANGE: { 7362 WebViewCore.ViewState viewState = (WebViewCore.ViewState) msg.obj; 7363 // mScrollX contains the new minPrefWidth 7364 mZoomManager.updateZoomRange(viewState, getViewWidth(), viewState.mScrollX); 7365 break; 7366 } 7367 case UPDATE_ZOOM_DENSITY: { 7368 final float density = (Float) msg.obj; 7369 mZoomManager.updateDefaultZoomDensity(density); 7370 break; 7371 } 7372 case REPLACE_BASE_CONTENT: { 7373 nativeReplaceBaseContent(msg.arg1); 7374 break; 7375 } 7376 case NEW_PICTURE_MSG_ID: { 7377 // called for new content 7378 final WebViewCore.DrawData draw = (WebViewCore.DrawData) msg.obj; 7379 setNewPicture(draw, true); 7380 break; 7381 } 7382 case WEBCORE_INITIALIZED_MSG_ID: 7383 // nativeCreate sets mNativeClass to a non-zero value 7384 String drawableDir = BrowserFrame.getRawResFilename( 7385 BrowserFrame.DRAWABLEDIR, mContext); 7386 WindowManager windowManager = 7387 (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); 7388 Display display = windowManager.getDefaultDisplay(); 7389 nativeCreate(msg.arg1, drawableDir, 7390 ActivityManager.isHighEndGfx(display)); 7391 if (mDelaySetPicture != null) { 7392 setNewPicture(mDelaySetPicture, true); 7393 mDelaySetPicture = null; 7394 } 7395 if (mIsPaused) { 7396 nativeSetPauseDrawing(mNativeClass, true); 7397 } 7398 mInputDispatcher = new WebViewInputDispatcher(this, 7399 mWebViewCore.getInputDispatcherCallbacks()); 7400 break; 7401 case UPDATE_TEXTFIELD_TEXT_MSG_ID: 7402 // Make sure that the textfield is currently focused 7403 // and representing the same node as the pointer. 7404 if (msg.arg2 == mTextGeneration) { 7405 String text = (String) msg.obj; 7406 if (null == text) { 7407 text = ""; 7408 } 7409 if (mInputConnection != null && 7410 mFieldPointer == msg.arg1) { 7411 mInputConnection.setTextAndKeepSelection(text); 7412 } 7413 } 7414 break; 7415 case UPDATE_TEXT_SELECTION_MSG_ID: 7416 updateTextSelectionFromMessage(msg.arg1, msg.arg2, 7417 (WebViewCore.TextSelectionData) msg.obj); 7418 break; 7419 case TAKE_FOCUS: 7420 int direction = msg.arg1; 7421 View focusSearch = mWebView.focusSearch(direction); 7422 if (focusSearch != null && focusSearch != mWebView) { 7423 focusSearch.requestFocus(); 7424 } 7425 break; 7426 case CLEAR_TEXT_ENTRY: 7427 hideSoftKeyboard(); 7428 break; 7429 case INVAL_RECT_MSG_ID: { 7430 Rect r = (Rect)msg.obj; 7431 if (r == null) { 7432 invalidate(); 7433 } else { 7434 // we need to scale r from content into view coords, 7435 // which viewInvalidate() does for us 7436 viewInvalidate(r.left, r.top, r.right, r.bottom); 7437 } 7438 break; 7439 } 7440 case REQUEST_FORM_DATA: 7441 if (mFieldPointer == msg.arg1) { 7442 ArrayAdapter<String> adapter = (ArrayAdapter<String>)msg.obj; 7443 mAutoCompletePopup.setAdapter(adapter); 7444 } 7445 break; 7446 7447 case LONG_PRESS_CENTER: 7448 // as this is shared by keydown and trackballdown, reset all 7449 // the states 7450 mGotCenterDown = false; 7451 mTrackballDown = false; 7452 performLongClick(); 7453 break; 7454 7455 case WEBCORE_NEED_TOUCH_EVENTS: 7456 mInputDispatcher.setWebKitWantsTouchEvents(msg.arg1 != 0); 7457 break; 7458 7459 case REQUEST_KEYBOARD: 7460 if (msg.arg1 == 0) { 7461 hideSoftKeyboard(); 7462 } else { 7463 displaySoftKeyboard(false); 7464 } 7465 break; 7466 7467 case DRAG_HELD_MOTIONLESS: 7468 mHeldMotionless = MOTIONLESS_TRUE; 7469 invalidate(); 7470 // fall through to keep scrollbars awake 7471 7472 case AWAKEN_SCROLL_BARS: 7473 if (mTouchMode == TOUCH_DRAG_MODE 7474 && mHeldMotionless == MOTIONLESS_TRUE) { 7475 mWebViewPrivate.awakenScrollBars(ViewConfiguration 7476 .getScrollDefaultDelay(), false); 7477 mPrivateHandler.sendMessageDelayed(mPrivateHandler 7478 .obtainMessage(AWAKEN_SCROLL_BARS), 7479 ViewConfiguration.getScrollDefaultDelay()); 7480 } 7481 break; 7482 7483 case SCREEN_ON: 7484 mWebView.setKeepScreenOn(msg.arg1 == 1); 7485 break; 7486 7487 case ENTER_FULLSCREEN_VIDEO: 7488 int layerId = msg.arg1; 7489 7490 String url = (String) msg.obj; 7491 if (mHTML5VideoViewProxy != null) { 7492 mHTML5VideoViewProxy.enterFullScreenVideo(layerId, url); 7493 } 7494 break; 7495 7496 case EXIT_FULLSCREEN_VIDEO: 7497 if (mHTML5VideoViewProxy != null) { 7498 mHTML5VideoViewProxy.exitFullScreenVideo(); 7499 } 7500 break; 7501 7502 case SHOW_FULLSCREEN: { 7503 View view = (View) msg.obj; 7504 int orientation = msg.arg1; 7505 int npp = msg.arg2; 7506 7507 if (inFullScreenMode()) { 7508 Log.w(LOGTAG, "Should not have another full screen."); 7509 dismissFullScreenMode(); 7510 } 7511 mFullScreenHolder = new PluginFullScreenHolder(WebViewClassic.this, orientation, npp); 7512 mFullScreenHolder.setContentView(view); 7513 mFullScreenHolder.show(); 7514 invalidate(); 7515 7516 break; 7517 } 7518 case HIDE_FULLSCREEN: 7519 dismissFullScreenMode(); 7520 break; 7521 7522 case SHOW_RECT_MSG_ID: { 7523 WebViewCore.ShowRectData data = (WebViewCore.ShowRectData) msg.obj; 7524 int x = getScrollX(); 7525 int left = contentToViewX(data.mLeft); 7526 int width = contentToViewDimension(data.mWidth); 7527 int maxWidth = contentToViewDimension(data.mContentWidth); 7528 int viewWidth = getViewWidth(); 7529 if (width < viewWidth) { 7530 // center align 7531 x += left + width / 2 - getScrollX() - viewWidth / 2; 7532 } else { 7533 x += (int) (left + data.mXPercentInDoc * width 7534 - getScrollX() - data.mXPercentInView * viewWidth); 7535 } 7536 if (DebugFlags.WEB_VIEW) { 7537 Log.v(LOGTAG, "showRectMsg=(left=" + left + ",width=" + 7538 width + ",maxWidth=" + maxWidth + 7539 ",viewWidth=" + viewWidth + ",x=" 7540 + x + ",xPercentInDoc=" + data.mXPercentInDoc + 7541 ",xPercentInView=" + data.mXPercentInView+ ")"); 7542 } 7543 // use the passing content width to cap x as the current 7544 // mContentWidth may not be updated yet 7545 x = Math.max(0, 7546 (Math.min(maxWidth, x + viewWidth)) - viewWidth); 7547 int top = contentToViewY(data.mTop); 7548 int height = contentToViewDimension(data.mHeight); 7549 int maxHeight = contentToViewDimension(data.mContentHeight); 7550 int viewHeight = getViewHeight(); 7551 int y = (int) (top + data.mYPercentInDoc * height - 7552 data.mYPercentInView * viewHeight); 7553 if (DebugFlags.WEB_VIEW) { 7554 Log.v(LOGTAG, "showRectMsg=(top=" + top + ",height=" + 7555 height + ",maxHeight=" + maxHeight + 7556 ",viewHeight=" + viewHeight + ",y=" 7557 + y + ",yPercentInDoc=" + data.mYPercentInDoc + 7558 ",yPercentInView=" + data.mYPercentInView+ ")"); 7559 } 7560 // use the passing content height to cap y as the current 7561 // mContentHeight may not be updated yet 7562 y = Math.max(0, 7563 (Math.min(maxHeight, y + viewHeight) - viewHeight)); 7564 // We need to take into account the visible title height 7565 // when scrolling since y is an absolute view position. 7566 y = Math.max(0, y - getVisibleTitleHeightImpl()); 7567 mWebView.scrollTo(x, y); 7568 } 7569 break; 7570 7571 case CENTER_FIT_RECT: 7572 centerFitRect((Rect)msg.obj); 7573 break; 7574 7575 case SET_SCROLLBAR_MODES: 7576 mHorizontalScrollBarMode = msg.arg1; 7577 mVerticalScrollBarMode = msg.arg2; 7578 break; 7579 7580 case SELECTION_STRING_CHANGED: 7581 if (mAccessibilityInjector != null) { 7582 String selectionString = (String) msg.obj; 7583 mAccessibilityInjector.onSelectionStringChange(selectionString); 7584 } 7585 break; 7586 7587 case FOCUS_NODE_CHANGED: 7588 mIsEditingText = (msg.arg1 == mFieldPointer); 7589 if (mAutoCompletePopup != null && !mIsEditingText) { 7590 mAutoCompletePopup.clearAdapter(); 7591 } 7592 // fall through to HIT_TEST_RESULT 7593 case HIT_TEST_RESULT: 7594 WebKitHitTest hit = (WebKitHitTest) msg.obj; 7595 mFocusedNode = hit; 7596 setTouchHighlightRects(hit); 7597 setHitTestResult(hit); 7598 break; 7599 7600 case SAVE_WEBARCHIVE_FINISHED: 7601 SaveWebArchiveMessage saveMessage = (SaveWebArchiveMessage)msg.obj; 7602 if (saveMessage.mCallback != null) { 7603 saveMessage.mCallback.onReceiveValue(saveMessage.mResultFile); 7604 } 7605 break; 7606 7607 case SET_AUTOFILLABLE: 7608 mAutoFillData = (WebViewCore.AutoFillData) msg.obj; 7609 if (mInputConnection != null) { 7610 mInputConnection.setAutoFillable(mAutoFillData.getQueryId()); 7611 mAutoCompletePopup.setAutoFillQueryId(mAutoFillData.getQueryId()); 7612 } 7613 break; 7614 7615 case AUTOFILL_COMPLETE: 7616 if (mAutoCompletePopup != null) { 7617 ArrayList<String> pastEntries = new ArrayList<String>(); 7618 mAutoCompletePopup.setAdapter(new ArrayAdapter<String>( 7619 mContext, 7620 com.android.internal.R.layout.web_text_view_dropdown, 7621 pastEntries)); 7622 } 7623 break; 7624 7625 case COPY_TO_CLIPBOARD: 7626 copyToClipboard((String) msg.obj); 7627 break; 7628 7629 case INIT_EDIT_FIELD: 7630 if (mInputConnection != null) { 7631 TextFieldInitData initData = (TextFieldInitData) msg.obj; 7632 mTextGeneration = 0; 7633 mFieldPointer = initData.mFieldPointer; 7634 mInputConnection.initEditorInfo(initData); 7635 mInputConnection.setTextAndKeepSelection(initData.mText); 7636 mEditTextContentBounds.set(initData.mContentBounds); 7637 mEditTextLayerId = initData.mNodeLayerId; 7638 nativeMapLayerRect(mNativeClass, mEditTextLayerId, 7639 mEditTextContentBounds); 7640 mEditTextContent.set(initData.mContentRect); 7641 relocateAutoCompletePopup(); 7642 } 7643 break; 7644 7645 case REPLACE_TEXT:{ 7646 String text = (String)msg.obj; 7647 int start = msg.arg1; 7648 int end = msg.arg2; 7649 int cursorPosition = start + text.length(); 7650 replaceTextfieldText(start, end, text, 7651 cursorPosition, cursorPosition); 7652 break; 7653 } 7654 7655 case UPDATE_MATCH_COUNT: { 7656 WebViewCore.FindAllRequest request = (WebViewCore.FindAllRequest)msg.obj; 7657 if (request == null) { 7658 if (mFindCallback != null) { 7659 mFindCallback.updateMatchCount(0, 0, true); 7660 } 7661 } else if (request == mFindRequest) { 7662 int matchCount, matchIndex; 7663 synchronized (mFindRequest) { 7664 matchCount = request.mMatchCount; 7665 matchIndex = request.mMatchIndex; 7666 } 7667 if (mFindCallback != null) { 7668 mFindCallback.updateMatchCount(matchIndex, matchCount, false); 7669 } 7670 if (mFindListener != null) { 7671 mFindListener.onFindResultReceived(matchIndex, matchCount, true); 7672 } 7673 } 7674 break; 7675 } 7676 7677 case CLEAR_CARET_HANDLE: 7678 selectionDone(); 7679 break; 7680 7681 case KEY_PRESS: 7682 sendBatchableInputMessage(EventHub.KEY_PRESS, msg.arg1, 0, null); 7683 break; 7684 7685 case RELOCATE_AUTO_COMPLETE_POPUP: 7686 relocateAutoCompletePopup(); 7687 break; 7688 7689 case AUTOFILL_FORM: 7690 mWebViewCore.sendMessage(EventHub.AUTOFILL_FORM, 7691 msg.arg1, /* unused */0); 7692 break; 7693 7694 case EDIT_TEXT_SIZE_CHANGED: 7695 if (msg.arg1 == mFieldPointer) { 7696 mEditTextContent.set((Rect)msg.obj); 7697 } 7698 break; 7699 7700 case SHOW_CARET_HANDLE: 7701 if (!mSelectingText && mIsEditingText && mIsCaretSelection) { 7702 setupWebkitSelect(); 7703 resetCaretTimer(); 7704 showPasteWindow(); 7705 } 7706 break; 7707 7708 case UPDATE_CONTENT_BOUNDS: 7709 mEditTextContentBounds.set((Rect) msg.obj); 7710 break; 7711 7712 case SCROLL_EDIT_TEXT: 7713 scrollEditWithCursor(); 7714 break; 7715 7716 default: 7717 super.handleMessage(msg); 7718 break; 7719 } 7720 } 7721 7722 @Override 7723 public Looper getUiLooper() { 7724 return getLooper(); 7725 } 7726 7727 @Override 7728 public void dispatchUiEvent(MotionEvent event, int eventType, int flags) { 7729 onHandleUiEvent(event, eventType, flags); 7730 } 7731 7732 @Override 7733 public Context getContext() { 7734 return WebViewClassic.this.getContext(); 7735 } 7736 } 7737 7738 private void setHitTestTypeFromUrl(String url) { 7739 String substr = null; 7740 if (url.startsWith(SCHEME_GEO)) { 7741 mInitialHitTestResult.setType(HitTestResult.GEO_TYPE); 7742 substr = url.substring(SCHEME_GEO.length()); 7743 } else if (url.startsWith(SCHEME_TEL)) { 7744 mInitialHitTestResult.setType(HitTestResult.PHONE_TYPE); 7745 substr = url.substring(SCHEME_TEL.length()); 7746 } else if (url.startsWith(SCHEME_MAILTO)) { 7747 mInitialHitTestResult.setType(HitTestResult.EMAIL_TYPE); 7748 substr = url.substring(SCHEME_MAILTO.length()); 7749 } else { 7750 mInitialHitTestResult.setType(HitTestResult.SRC_ANCHOR_TYPE); 7751 mInitialHitTestResult.setExtra(url); 7752 return; 7753 } 7754 try { 7755 mInitialHitTestResult.setExtra(URLDecoder.decode(substr, "UTF-8")); 7756 } catch (Throwable e) { 7757 Log.w(LOGTAG, "Failed to decode URL! " + substr, e); 7758 mInitialHitTestResult.setType(HitTestResult.UNKNOWN_TYPE); 7759 } 7760 } 7761 7762 private void setHitTestResult(WebKitHitTest hit) { 7763 if (hit == null) { 7764 mInitialHitTestResult = null; 7765 return; 7766 } 7767 mInitialHitTestResult = new HitTestResult(); 7768 if (hit.mLinkUrl != null) { 7769 setHitTestTypeFromUrl(hit.mLinkUrl); 7770 if (hit.mImageUrl != null 7771 && mInitialHitTestResult.getType() == HitTestResult.SRC_ANCHOR_TYPE) { 7772 mInitialHitTestResult.setType(HitTestResult.SRC_IMAGE_ANCHOR_TYPE); 7773 mInitialHitTestResult.setExtra(hit.mImageUrl); 7774 } 7775 } else if (hit.mImageUrl != null) { 7776 mInitialHitTestResult.setType(HitTestResult.IMAGE_TYPE); 7777 mInitialHitTestResult.setExtra(hit.mImageUrl); 7778 } else if (hit.mEditable) { 7779 mInitialHitTestResult.setType(HitTestResult.EDIT_TEXT_TYPE); 7780 } else if (hit.mIntentUrl != null) { 7781 setHitTestTypeFromUrl(hit.mIntentUrl); 7782 } 7783 } 7784 7785 private boolean shouldDrawHighlightRect() { 7786 if (mFocusedNode == null || mInitialHitTestResult == null) { 7787 return false; 7788 } 7789 if (mTouchHighlightRegion.isEmpty()) { 7790 return false; 7791 } 7792 if (mFocusedNode.mHasFocus && !mWebView.isInTouchMode()) { 7793 return mDrawCursorRing && !mFocusedNode.mEditable; 7794 } 7795 if (mFocusedNode.mHasFocus && mFocusedNode.mEditable) { 7796 return false; 7797 } 7798 long delay = SystemClock.uptimeMillis() - mTouchHighlightRequested; 7799 if (delay < ViewConfiguration.getTapTimeout()) { 7800 Rect r = mTouchHighlightRegion.getBounds(); 7801 mWebView.postInvalidateDelayed(delay, r.left, r.top, r.right, r.bottom); 7802 return false; 7803 } 7804 if (mInputDispatcher == null) { 7805 return false; 7806 } 7807 return mInputDispatcher.shouldShowTapHighlight(); 7808 } 7809 7810 7811 private FocusTransitionDrawable mFocusTransition = null; 7812 static class FocusTransitionDrawable extends Drawable { 7813 Region mPreviousRegion; 7814 Region mNewRegion; 7815 float mProgress = 0; 7816 WebViewClassic mWebView; 7817 Paint mPaint; 7818 int mMaxAlpha; 7819 Point mTranslate; 7820 7821 public FocusTransitionDrawable(WebViewClassic view) { 7822 mWebView = view; 7823 mPaint = new Paint(mWebView.mTouchHightlightPaint); 7824 mMaxAlpha = mPaint.getAlpha(); 7825 } 7826 7827 @Override 7828 public void setColorFilter(ColorFilter cf) { 7829 } 7830 7831 @Override 7832 public void setAlpha(int alpha) { 7833 } 7834 7835 @Override 7836 public int getOpacity() { 7837 return 0; 7838 } 7839 7840 public void setProgress(float p) { 7841 mProgress = p; 7842 if (mWebView.mFocusTransition == this) { 7843 if (mProgress == 1f) 7844 mWebView.mFocusTransition = null; 7845 mWebView.invalidate(); 7846 } 7847 } 7848 7849 public float getProgress() { 7850 return mProgress; 7851 } 7852 7853 @Override 7854 public void draw(Canvas canvas) { 7855 if (mTranslate == null) { 7856 Rect bounds = mPreviousRegion.getBounds(); 7857 Point from = new Point(bounds.centerX(), bounds.centerY()); 7858 mNewRegion.getBounds(bounds); 7859 Point to = new Point(bounds.centerX(), bounds.centerY()); 7860 mTranslate = new Point(from.x - to.x, from.y - to.y); 7861 } 7862 int alpha = (int) (mProgress * mMaxAlpha); 7863 RegionIterator iter = new RegionIterator(mPreviousRegion); 7864 Rect r = new Rect(); 7865 mPaint.setAlpha(mMaxAlpha - alpha); 7866 float tx = mTranslate.x * mProgress; 7867 float ty = mTranslate.y * mProgress; 7868 int save = canvas.save(Canvas.MATRIX_SAVE_FLAG); 7869 canvas.translate(-tx, -ty); 7870 while (iter.next(r)) { 7871 canvas.drawRect(r, mPaint); 7872 } 7873 canvas.restoreToCount(save); 7874 iter = new RegionIterator(mNewRegion); 7875 r = new Rect(); 7876 mPaint.setAlpha(alpha); 7877 save = canvas.save(Canvas.MATRIX_SAVE_FLAG); 7878 tx = mTranslate.x - tx; 7879 ty = mTranslate.y - ty; 7880 canvas.translate(tx, ty); 7881 while (iter.next(r)) { 7882 canvas.drawRect(r, mPaint); 7883 } 7884 canvas.restoreToCount(save); 7885 } 7886 }; 7887 7888 private boolean shouldAnimateTo(WebKitHitTest hit) { 7889 // TODO: Don't be annoying or throw out the animation entirely 7890 return false; 7891 } 7892 7893 private void setTouchHighlightRects(WebKitHitTest hit) { 7894 FocusTransitionDrawable transition = null; 7895 if (shouldAnimateTo(hit)) { 7896 transition = new FocusTransitionDrawable(this); 7897 } 7898 Rect[] rects = hit != null ? hit.mTouchRects : null; 7899 if (!mTouchHighlightRegion.isEmpty()) { 7900 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 7901 if (transition != null) { 7902 transition.mPreviousRegion = new Region(mTouchHighlightRegion); 7903 } 7904 mTouchHighlightRegion.setEmpty(); 7905 } 7906 if (rects != null) { 7907 mTouchHightlightPaint.setColor(hit.mTapHighlightColor); 7908 for (Rect rect : rects) { 7909 Rect viewRect = contentToViewRect(rect); 7910 // some sites, like stories in nytimes.com, set 7911 // mouse event handler in the top div. It is not 7912 // user friendly to highlight the div if it covers 7913 // more than half of the screen. 7914 if (viewRect.width() < getWidth() >> 1 7915 || viewRect.height() < getHeight() >> 1) { 7916 mTouchHighlightRegion.union(viewRect); 7917 } else if (DebugFlags.WEB_VIEW) { 7918 Log.d(LOGTAG, "Skip the huge selection rect:" 7919 + viewRect); 7920 } 7921 } 7922 mWebView.invalidate(mTouchHighlightRegion.getBounds()); 7923 if (transition != null && transition.mPreviousRegion != null) { 7924 transition.mNewRegion = new Region(mTouchHighlightRegion); 7925 mFocusTransition = transition; 7926 ObjectAnimator animator = ObjectAnimator.ofFloat( 7927 mFocusTransition, "progress", 1f); 7928 animator.start(); 7929 } 7930 } 7931 } 7932 7933 // Interface to allow the profiled WebView to hook the page swap notifications. 7934 public interface PageSwapDelegate { 7935 void onPageSwapOccurred(boolean notifyAnimationStarted); 7936 } 7937 7938 long mLastSwapTime; 7939 double mAverageSwapFps; 7940 7941 /** Called by JNI when pages are swapped (only occurs with hardware 7942 * acceleration) */ 7943 protected void pageSwapCallback(boolean notifyAnimationStarted) { 7944 if (DebugFlags.MEASURE_PAGE_SWAP_FPS) { 7945 long now = System.currentTimeMillis(); 7946 long diff = now - mLastSwapTime; 7947 mAverageSwapFps = ((1000.0 / diff) + mAverageSwapFps) / 2; 7948 Log.d(LOGTAG, "page swap fps: " + mAverageSwapFps); 7949 mLastSwapTime = now; 7950 } 7951 mWebViewCore.resumeWebKitDraw(); 7952 if (notifyAnimationStarted) { 7953 mWebViewCore.sendMessage(EventHub.NOTIFY_ANIMATION_STARTED); 7954 } 7955 if (mWebView instanceof PageSwapDelegate) { 7956 // This provides a hook for ProfiledWebView to observe the tile page swaps. 7957 ((PageSwapDelegate) mWebView).onPageSwapOccurred(notifyAnimationStarted); 7958 } 7959 } 7960 7961 void setNewPicture(final WebViewCore.DrawData draw, boolean updateBaseLayer) { 7962 if (mNativeClass == 0) { 7963 if (mDelaySetPicture != null) { 7964 throw new IllegalStateException("Tried to setNewPicture with" 7965 + " a delay picture already set! (memory leak)"); 7966 } 7967 // Not initialized yet, delay set 7968 mDelaySetPicture = draw; 7969 return; 7970 } 7971 WebViewCore.ViewState viewState = draw.mViewState; 7972 boolean isPictureAfterFirstLayout = viewState != null; 7973 7974 if (updateBaseLayer) { 7975 setBaseLayer(draw.mBaseLayer, draw.mInvalRegion, 7976 getSettings().getShowVisualIndicator(), 7977 isPictureAfterFirstLayout); 7978 } 7979 final Point viewSize = draw.mViewSize; 7980 // We update the layout (i.e. request a layout from the 7981 // view system) if the last view size that we sent to 7982 // WebCore matches the view size of the picture we just 7983 // received in the fixed dimension. 7984 final boolean updateLayout = viewSize.x == mLastWidthSent 7985 && viewSize.y == mLastHeightSent; 7986 // Don't send scroll event for picture coming from webkit, 7987 // since the new picture may cause a scroll event to override 7988 // the saved history scroll position. 7989 mSendScrollEvent = false; 7990 recordNewContentSize(draw.mContentSize.x, 7991 draw.mContentSize.y, updateLayout); 7992 if (isPictureAfterFirstLayout) { 7993 // Reset the last sent data here since dealing with new page. 7994 mLastWidthSent = 0; 7995 mZoomManager.onFirstLayout(draw); 7996 int scrollX = viewState.mShouldStartScrolledRight 7997 ? getContentWidth() : viewState.mScrollX; 7998 int scrollY = viewState.mScrollY; 7999 contentScrollTo(scrollX, scrollY, false); 8000 if (!mDrawHistory) { 8001 // As we are on a new page, hide the keyboard 8002 hideSoftKeyboard(); 8003 } 8004 } 8005 mSendScrollEvent = true; 8006 8007 if (DebugFlags.WEB_VIEW) { 8008 Rect b = draw.mInvalRegion.getBounds(); 8009 Log.v(LOGTAG, "NEW_PICTURE_MSG_ID {" + 8010 b.left+","+b.top+","+b.right+","+b.bottom+"}"); 8011 } 8012 Rect invalBounds = draw.mInvalRegion.getBounds(); 8013 if (!invalBounds.isEmpty()) { 8014 invalidateContentRect(invalBounds); 8015 } else { 8016 mWebView.invalidate(); 8017 } 8018 8019 // update the zoom information based on the new picture 8020 mZoomManager.onNewPicture(draw); 8021 8022 if (isPictureAfterFirstLayout) { 8023 mViewManager.postReadyToDrawAll(); 8024 } 8025 scrollEditWithCursor(); 8026 8027 if (mPictureListener != null) { 8028 mPictureListener.onNewPicture(getWebView(), capturePicture()); 8029 } 8030 } 8031 8032 /** 8033 * Used when receiving messages for REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID 8034 * and UPDATE_TEXT_SELECTION_MSG_ID. 8035 */ 8036 private void updateTextSelectionFromMessage(int nodePointer, 8037 int textGeneration, WebViewCore.TextSelectionData data) { 8038 if (textGeneration == mTextGeneration) { 8039 if (mInputConnection != null && mFieldPointer == nodePointer) { 8040 mInputConnection.setSelection(data.mStart, data.mEnd); 8041 } 8042 } 8043 nativeSetTextSelection(mNativeClass, data.mSelectTextPtr); 8044 8045 if (data.mSelectTextPtr != 0 && 8046 (data.mStart != data.mEnd || 8047 (mFieldPointer == nodePointer && mFieldPointer != 0))) { 8048 mIsCaretSelection = (data.mStart == data.mEnd); 8049 if (mIsCaretSelection && 8050 (mInputConnection == null || 8051 mInputConnection.getEditable().length() == 0)) { 8052 // There's no text, don't show caret handle. 8053 selectionDone(); 8054 } else { 8055 if (!mSelectingText) { 8056 setupWebkitSelect(); 8057 } else if (!mSelectionStarted) { 8058 syncSelectionCursors(); 8059 } else { 8060 adjustSelectionCursors(); 8061 } 8062 if (mIsCaretSelection) { 8063 resetCaretTimer(); 8064 } 8065 } 8066 } else { 8067 selectionDone(); 8068 } 8069 invalidate(); 8070 } 8071 8072 private void scrollEditText(int scrollX, int scrollY) { 8073 // Scrollable edit text. Scroll it. 8074 float maxScrollX = getMaxTextScrollX(); 8075 float scrollPercentX = ((float)scrollX)/maxScrollX; 8076 mEditTextContent.offsetTo(-scrollX, -scrollY); 8077 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SCROLL_TEXT_INPUT, 0, 8078 scrollY, (Float)scrollPercentX); 8079 } 8080 8081 private void beginTextBatch() { 8082 mIsBatchingTextChanges = true; 8083 } 8084 8085 private void commitTextBatch() { 8086 if (mWebViewCore != null) { 8087 mWebViewCore.sendMessages(mBatchedTextChanges); 8088 } 8089 mBatchedTextChanges.clear(); 8090 mIsBatchingTextChanges = false; 8091 } 8092 8093 private void sendBatchableInputMessage(int what, int arg1, int arg2, 8094 Object obj) { 8095 if (mWebViewCore == null) { 8096 return; 8097 } 8098 Message message = Message.obtain(null, what, arg1, arg2, obj); 8099 if (mIsBatchingTextChanges) { 8100 mBatchedTextChanges.add(message); 8101 } else { 8102 mWebViewCore.sendMessage(message); 8103 } 8104 } 8105 8106 // Class used to use a dropdown for a <select> element 8107 private class InvokeListBox implements Runnable { 8108 // Whether the listbox allows multiple selection. 8109 private boolean mMultiple; 8110 // Passed in to a list with multiple selection to tell 8111 // which items are selected. 8112 private int[] mSelectedArray; 8113 // Passed in to a list with single selection to tell 8114 // where the initial selection is. 8115 private int mSelection; 8116 8117 private Container[] mContainers; 8118 8119 // Need these to provide stable ids to my ArrayAdapter, 8120 // which normally does not have stable ids. (Bug 1250098) 8121 private class Container extends Object { 8122 /** 8123 * Possible values for mEnabled. Keep in sync with OptionStatus in 8124 * WebViewCore.cpp 8125 */ 8126 final static int OPTGROUP = -1; 8127 final static int OPTION_DISABLED = 0; 8128 final static int OPTION_ENABLED = 1; 8129 8130 String mString; 8131 int mEnabled; 8132 int mId; 8133 8134 @Override 8135 public String toString() { 8136 return mString; 8137 } 8138 } 8139 8140 /** 8141 * Subclass ArrayAdapter so we can disable OptionGroupLabels, 8142 * and allow filtering. 8143 */ 8144 private class MyArrayListAdapter extends ArrayAdapter<Container> { 8145 public MyArrayListAdapter() { 8146 super(WebViewClassic.this.mContext, 8147 mMultiple ? com.android.internal.R.layout.select_dialog_multichoice : 8148 com.android.internal.R.layout.webview_select_singlechoice, 8149 mContainers); 8150 } 8151 8152 @Override 8153 public View getView(int position, View convertView, 8154 ViewGroup parent) { 8155 // Always pass in null so that we will get a new CheckedTextView 8156 // Otherwise, an item which was previously used as an <optgroup> 8157 // element (i.e. has no check), could get used as an <option> 8158 // element, which needs a checkbox/radio, but it would not have 8159 // one. 8160 convertView = super.getView(position, null, parent); 8161 Container c = item(position); 8162 if (c != null && Container.OPTION_ENABLED != c.mEnabled) { 8163 // ListView does not draw dividers between disabled and 8164 // enabled elements. Use a LinearLayout to provide dividers 8165 LinearLayout layout = new LinearLayout(mContext); 8166 layout.setOrientation(LinearLayout.VERTICAL); 8167 if (position > 0) { 8168 View dividerTop = new View(mContext); 8169 dividerTop.setBackgroundResource( 8170 android.R.drawable.divider_horizontal_bright); 8171 layout.addView(dividerTop); 8172 } 8173 8174 if (Container.OPTGROUP == c.mEnabled) { 8175 // Currently select_dialog_multichoice uses CheckedTextViews. 8176 // If that changes, the class cast will no longer be valid. 8177 if (mMultiple) { 8178 Assert.assertTrue(convertView instanceof CheckedTextView); 8179 ((CheckedTextView) convertView).setCheckMarkDrawable(null); 8180 } 8181 } else { 8182 // c.mEnabled == Container.OPTION_DISABLED 8183 // Draw the disabled element in a disabled state. 8184 convertView.setEnabled(false); 8185 } 8186 8187 layout.addView(convertView); 8188 if (position < getCount() - 1) { 8189 View dividerBottom = new View(mContext); 8190 dividerBottom.setBackgroundResource( 8191 android.R.drawable.divider_horizontal_bright); 8192 layout.addView(dividerBottom); 8193 } 8194 return layout; 8195 } 8196 return convertView; 8197 } 8198 8199 @Override 8200 public boolean hasStableIds() { 8201 // AdapterView's onChanged method uses this to determine whether 8202 // to restore the old state. Return false so that the old (out 8203 // of date) state does not replace the new, valid state. 8204 return false; 8205 } 8206 8207 private Container item(int position) { 8208 if (position < 0 || position >= getCount()) { 8209 return null; 8210 } 8211 return getItem(position); 8212 } 8213 8214 @Override 8215 public long getItemId(int position) { 8216 Container item = item(position); 8217 if (item == null) { 8218 return -1; 8219 } 8220 return item.mId; 8221 } 8222 8223 @Override 8224 public boolean areAllItemsEnabled() { 8225 return false; 8226 } 8227 8228 @Override 8229 public boolean isEnabled(int position) { 8230 Container item = item(position); 8231 if (item == null) { 8232 return false; 8233 } 8234 return Container.OPTION_ENABLED == item.mEnabled; 8235 } 8236 } 8237 8238 private InvokeListBox(String[] array, int[] enabled, int[] selected) { 8239 mMultiple = true; 8240 mSelectedArray = selected; 8241 8242 int length = array.length; 8243 mContainers = new Container[length]; 8244 for (int i = 0; i < length; i++) { 8245 mContainers[i] = new Container(); 8246 mContainers[i].mString = array[i]; 8247 mContainers[i].mEnabled = enabled[i]; 8248 mContainers[i].mId = i; 8249 } 8250 } 8251 8252 private InvokeListBox(String[] array, int[] enabled, int selection) { 8253 mSelection = selection; 8254 mMultiple = false; 8255 8256 int length = array.length; 8257 mContainers = new Container[length]; 8258 for (int i = 0; i < length; i++) { 8259 mContainers[i] = new Container(); 8260 mContainers[i].mString = array[i]; 8261 mContainers[i].mEnabled = enabled[i]; 8262 mContainers[i].mId = i; 8263 } 8264 } 8265 8266 /* 8267 * Whenever the data set changes due to filtering, this class ensures 8268 * that the checked item remains checked. 8269 */ 8270 private class SingleDataSetObserver extends DataSetObserver { 8271 private long mCheckedId; 8272 private ListView mListView; 8273 private Adapter mAdapter; 8274 8275 /* 8276 * Create a new observer. 8277 * @param id The ID of the item to keep checked. 8278 * @param l ListView for getting and clearing the checked states 8279 * @param a Adapter for getting the IDs 8280 */ 8281 public SingleDataSetObserver(long id, ListView l, Adapter a) { 8282 mCheckedId = id; 8283 mListView = l; 8284 mAdapter = a; 8285 } 8286 8287 @Override 8288 public void onChanged() { 8289 // The filter may have changed which item is checked. Find the 8290 // item that the ListView thinks is checked. 8291 int position = mListView.getCheckedItemPosition(); 8292 long id = mAdapter.getItemId(position); 8293 if (mCheckedId != id) { 8294 // Clear the ListView's idea of the checked item, since 8295 // it is incorrect 8296 mListView.clearChoices(); 8297 // Search for mCheckedId. If it is in the filtered list, 8298 // mark it as checked 8299 int count = mAdapter.getCount(); 8300 for (int i = 0; i < count; i++) { 8301 if (mAdapter.getItemId(i) == mCheckedId) { 8302 mListView.setItemChecked(i, true); 8303 break; 8304 } 8305 } 8306 } 8307 } 8308 } 8309 8310 @Override 8311 public void run() { 8312 final ListView listView = (ListView) LayoutInflater.from(mContext) 8313 .inflate(com.android.internal.R.layout.select_dialog, null); 8314 final MyArrayListAdapter adapter = new MyArrayListAdapter(); 8315 AlertDialog.Builder b = new AlertDialog.Builder(mContext) 8316 .setView(listView).setCancelable(true) 8317 .setInverseBackgroundForced(true); 8318 8319 if (mMultiple) { 8320 b.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { 8321 @Override 8322 public void onClick(DialogInterface dialog, int which) { 8323 mWebViewCore.sendMessage( 8324 EventHub.LISTBOX_CHOICES, 8325 adapter.getCount(), 0, 8326 listView.getCheckedItemPositions()); 8327 }}); 8328 b.setNegativeButton(android.R.string.cancel, 8329 new DialogInterface.OnClickListener() { 8330 @Override 8331 public void onClick(DialogInterface dialog, int which) { 8332 mWebViewCore.sendMessage( 8333 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 8334 }}); 8335 } 8336 mListBoxDialog = b.create(); 8337 listView.setAdapter(adapter); 8338 listView.setFocusableInTouchMode(true); 8339 // There is a bug (1250103) where the checks in a ListView with 8340 // multiple items selected are associated with the positions, not 8341 // the ids, so the items do not properly retain their checks when 8342 // filtered. Do not allow filtering on multiple lists until 8343 // that bug is fixed. 8344 8345 listView.setTextFilterEnabled(!mMultiple); 8346 if (mMultiple) { 8347 listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 8348 int length = mSelectedArray.length; 8349 for (int i = 0; i < length; i++) { 8350 listView.setItemChecked(mSelectedArray[i], true); 8351 } 8352 } else { 8353 listView.setOnItemClickListener(new OnItemClickListener() { 8354 @Override 8355 public void onItemClick(AdapterView<?> parent, View v, 8356 int position, long id) { 8357 // Rather than sending the message right away, send it 8358 // after the page regains focus. 8359 mListBoxMessage = Message.obtain(null, 8360 EventHub.SINGLE_LISTBOX_CHOICE, (int) id, 0); 8361 if (mListBoxDialog != null) { 8362 mListBoxDialog.dismiss(); 8363 mListBoxDialog = null; 8364 } 8365 } 8366 }); 8367 if (mSelection != -1) { 8368 listView.setSelection(mSelection); 8369 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 8370 listView.setItemChecked(mSelection, true); 8371 DataSetObserver observer = new SingleDataSetObserver( 8372 adapter.getItemId(mSelection), listView, adapter); 8373 adapter.registerDataSetObserver(observer); 8374 } 8375 } 8376 mListBoxDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { 8377 @Override 8378 public void onCancel(DialogInterface dialog) { 8379 mWebViewCore.sendMessage( 8380 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 8381 mListBoxDialog = null; 8382 } 8383 }); 8384 mListBoxDialog.show(); 8385 } 8386 } 8387 8388 private Message mListBoxMessage; 8389 8390 /* 8391 * Request a dropdown menu for a listbox with multiple selection. 8392 * 8393 * @param array Labels for the listbox. 8394 * @param enabledArray State for each element in the list. See static 8395 * integers in Container class. 8396 * @param selectedArray Which positions are initally selected. 8397 */ 8398 void requestListBox(String[] array, int[] enabledArray, int[] 8399 selectedArray) { 8400 mPrivateHandler.post( 8401 new InvokeListBox(array, enabledArray, selectedArray)); 8402 } 8403 8404 /* 8405 * Request a dropdown menu for a listbox with single selection or a single 8406 * <select> element. 8407 * 8408 * @param array Labels for the listbox. 8409 * @param enabledArray State for each element in the list. See static 8410 * integers in Container class. 8411 * @param selection Which position is initally selected. 8412 */ 8413 void requestListBox(String[] array, int[] enabledArray, int selection) { 8414 mPrivateHandler.post( 8415 new InvokeListBox(array, enabledArray, selection)); 8416 } 8417 8418 private int getScaledMaxXScroll() { 8419 int width; 8420 if (mHeightCanMeasure == false) { 8421 width = getViewWidth() / 4; 8422 } else { 8423 Rect visRect = new Rect(); 8424 calcOurVisibleRect(visRect); 8425 width = visRect.width() / 2; 8426 } 8427 // FIXME the divisor should be retrieved from somewhere 8428 return viewToContentX(width); 8429 } 8430 8431 private int getScaledMaxYScroll() { 8432 int height; 8433 if (mHeightCanMeasure == false) { 8434 height = getViewHeight() / 4; 8435 } else { 8436 Rect visRect = new Rect(); 8437 calcOurVisibleRect(visRect); 8438 height = visRect.height() / 2; 8439 } 8440 // FIXME the divisor should be retrieved from somewhere 8441 // the closest thing today is hard-coded into ScrollView.java 8442 // (from ScrollView.java, line 363) int maxJump = height/2; 8443 return Math.round(height * mZoomManager.getInvScale()); 8444 } 8445 8446 /** 8447 * Called by JNI to invalidate view 8448 */ 8449 private void viewInvalidate() { 8450 invalidate(); 8451 } 8452 8453 /** 8454 * Pass the key directly to the page. This assumes that 8455 * nativePageShouldHandleShiftAndArrows() returned true. 8456 */ 8457 private void letPageHandleNavKey(int keyCode, long time, boolean down, int metaState) { 8458 int keyEventAction; 8459 if (down) { 8460 keyEventAction = KeyEvent.ACTION_DOWN; 8461 } else { 8462 keyEventAction = KeyEvent.ACTION_UP; 8463 } 8464 8465 KeyEvent event = new KeyEvent(time, time, keyEventAction, keyCode, 8466 1, (metaState & KeyEvent.META_SHIFT_ON) 8467 | (metaState & KeyEvent.META_ALT_ON) 8468 | (metaState & KeyEvent.META_SYM_ON) 8469 , KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0); 8470 sendKeyEvent(event); 8471 } 8472 8473 private void sendKeyEvent(KeyEvent event) { 8474 int direction = 0; 8475 switch (event.getKeyCode()) { 8476 case KeyEvent.KEYCODE_DPAD_DOWN: 8477 direction = View.FOCUS_DOWN; 8478 break; 8479 case KeyEvent.KEYCODE_DPAD_UP: 8480 direction = View.FOCUS_UP; 8481 break; 8482 case KeyEvent.KEYCODE_DPAD_LEFT: 8483 direction = View.FOCUS_LEFT; 8484 break; 8485 case KeyEvent.KEYCODE_DPAD_RIGHT: 8486 direction = View.FOCUS_RIGHT; 8487 break; 8488 case KeyEvent.KEYCODE_TAB: 8489 direction = event.isShiftPressed() ? View.FOCUS_BACKWARD : View.FOCUS_FORWARD; 8490 break; 8491 } 8492 if (direction != 0 && mWebView.focusSearch(direction) == null) { 8493 // Can't take focus in that direction 8494 direction = 0; 8495 } 8496 int eventHubAction = EventHub.KEY_UP; 8497 if (event.getAction() == KeyEvent.ACTION_DOWN) { 8498 eventHubAction = EventHub.KEY_DOWN; 8499 int sound = keyCodeToSoundsEffect(event.getKeyCode()); 8500 if (sound != 0) { 8501 mWebView.playSoundEffect(sound); 8502 } 8503 } 8504 sendBatchableInputMessage(eventHubAction, direction, 0, event); 8505 } 8506 8507 /** 8508 * @return Whether accessibility script has been injected. 8509 */ 8510 private boolean accessibilityScriptInjected() { 8511 // TODO: Maybe the injected script should announce its presence in 8512 // the page meta-tag so the nativePageShouldHandleShiftAndArrows 8513 // will check that as one of the conditions it looks for 8514 return mAccessibilityScriptInjected; 8515 } 8516 8517 /** 8518 * See {@link WebView#setBackgroundColor(int)} 8519 */ 8520 @Override 8521 public void setBackgroundColor(int color) { 8522 mBackgroundColor = color; 8523 mWebViewCore.sendMessage(EventHub.SET_BACKGROUND_COLOR, color); 8524 } 8525 8526 /** 8527 * See {@link WebView#debugDump()} 8528 */ 8529 @Override 8530 @Deprecated 8531 public void debugDump() { 8532 } 8533 8534 /** 8535 * Draw the HTML page into the specified canvas. This call ignores any 8536 * view-specific zoom, scroll offset, or other changes. It does not draw 8537 * any view-specific chrome, such as progress or URL bars. 8538 * 8539 * only needs to be accessible to Browser and testing 8540 */ 8541 public void drawPage(Canvas canvas) { 8542 calcOurContentVisibleRectF(mVisibleContentRect); 8543 nativeDraw(canvas, mVisibleContentRect, 0, 0, false); 8544 } 8545 8546 /** 8547 * Enable the communication b/t the webView and VideoViewProxy 8548 * 8549 * only used by the Browser 8550 */ 8551 public void setHTML5VideoViewProxy(HTML5VideoViewProxy proxy) { 8552 mHTML5VideoViewProxy = proxy; 8553 } 8554 8555 /** 8556 * Set the time to wait between passing touches to WebCore. See also the 8557 * TOUCH_SENT_INTERVAL member for further discussion. 8558 * 8559 * This is only used by the DRT test application. 8560 */ 8561 public void setTouchInterval(int interval) { 8562 mCurrentTouchInterval = interval; 8563 } 8564 8565 /** 8566 * Copy text into the clipboard. This is called indirectly from 8567 * WebViewCore. 8568 * @param text The text to put into the clipboard. 8569 */ 8570 private void copyToClipboard(String text) { 8571 ClipboardManager cm = (ClipboardManager)mContext 8572 .getSystemService(Context.CLIPBOARD_SERVICE); 8573 ClipData clip = ClipData.newPlainText(getTitle(), text); 8574 cm.setPrimaryClip(clip); 8575 } 8576 8577 /*package*/ void autoFillForm(int autoFillQueryId) { 8578 mPrivateHandler.obtainMessage(AUTOFILL_FORM, autoFillQueryId, 0) 8579 .sendToTarget(); 8580 } 8581 8582 /* package */ ViewManager getViewManager() { 8583 return mViewManager; 8584 } 8585 8586 /** send content invalidate */ 8587 protected void contentInvalidateAll() { 8588 if (mWebViewCore != null && !mBlockWebkitViewMessages) { 8589 mWebViewCore.sendMessage(EventHub.CONTENT_INVALIDATE_ALL); 8590 } 8591 } 8592 8593 /** discard all textures from tiles. Used in Profiled WebView */ 8594 public void discardAllTextures() { 8595 nativeDiscardAllTextures(); 8596 } 8597 8598 @Override 8599 public void setLayerType(int layerType, Paint paint) { 8600 updateHwAccelerated(); 8601 } 8602 8603 private void updateHwAccelerated() { 8604 if (mNativeClass == 0) { 8605 return; 8606 } 8607 boolean hwAccelerated = false; 8608 if (mWebView.isHardwareAccelerated() 8609 && mWebView.getLayerType() != View.LAYER_TYPE_SOFTWARE) { 8610 hwAccelerated = true; 8611 } 8612 8613 // result is of type LayerAndroid::InvalidateFlags, non zero means invalidate/redraw 8614 int result = nativeSetHwAccelerated(mNativeClass, hwAccelerated); 8615 if (mWebViewCore != null && !mBlockWebkitViewMessages && result != 0) { 8616 mWebViewCore.contentDraw(); 8617 } 8618 } 8619 8620 /** 8621 * Begin collecting per-tile profiling data 8622 * 8623 * only used by profiling tests 8624 */ 8625 public void tileProfilingStart() { 8626 nativeTileProfilingStart(); 8627 } 8628 /** 8629 * Return per-tile profiling data 8630 * 8631 * only used by profiling tests 8632 */ 8633 public float tileProfilingStop() { 8634 return nativeTileProfilingStop(); 8635 } 8636 8637 /** only used by profiling tests */ 8638 public void tileProfilingClear() { 8639 nativeTileProfilingClear(); 8640 } 8641 /** only used by profiling tests */ 8642 public int tileProfilingNumFrames() { 8643 return nativeTileProfilingNumFrames(); 8644 } 8645 /** only used by profiling tests */ 8646 public int tileProfilingNumTilesInFrame(int frame) { 8647 return nativeTileProfilingNumTilesInFrame(frame); 8648 } 8649 /** only used by profiling tests */ 8650 public int tileProfilingGetInt(int frame, int tile, String key) { 8651 return nativeTileProfilingGetInt(frame, tile, key); 8652 } 8653 /** only used by profiling tests */ 8654 public float tileProfilingGetFloat(int frame, int tile, String key) { 8655 return nativeTileProfilingGetFloat(frame, tile, key); 8656 } 8657 8658 /** 8659 * Checks the focused content for an editable text field. This can be 8660 * text input or ContentEditable. 8661 * @return true if the focused item is an editable text field. 8662 */ 8663 boolean focusCandidateIsEditableText() { 8664 if (mFocusedNode != null) { 8665 return mFocusedNode.mEditable; 8666 } 8667 return false; 8668 } 8669 8670 // Called via JNI 8671 private void postInvalidate() { 8672 mWebView.postInvalidate(); 8673 } 8674 8675 private native void nativeCreate(int ptr, String drawableDir, boolean isHighEndGfx); 8676 private native void nativeDebugDump(); 8677 private native void nativeDestroy(); 8678 8679 /** 8680 * Draw the picture set with a background color and extra. If 8681 * "splitIfNeeded" is true and the return value is not 0, the return value 8682 * MUST be passed to WebViewCore with SPLIT_PICTURE_SET message so that the 8683 * native allocation can be freed. 8684 */ 8685 private native int nativeDraw(Canvas canvas, RectF visibleRect, 8686 int color, int extra, boolean splitIfNeeded); 8687 private native void nativeDumpDisplayTree(String urlOrNull); 8688 private native boolean nativeEvaluateLayersAnimations(int nativeInstance); 8689 private native int nativeGetDrawGLFunction(int nativeInstance, Rect rect, 8690 Rect viewRect, RectF visibleRect, float scale, int extras); 8691 private native void nativeUpdateDrawGLFunction(Rect rect, Rect viewRect, 8692 RectF visibleRect, float scale); 8693 private native String nativeGetSelection(); 8694 private native Rect nativeLayerBounds(int layer); 8695 private native void nativeSetHeightCanMeasure(boolean measure); 8696 private native boolean nativeSetBaseLayer(int nativeInstance, 8697 int layer, Region invalRegion, 8698 boolean showVisualIndicator, boolean isPictureAfterFirstLayout); 8699 private native int nativeGetBaseLayer(); 8700 private native void nativeReplaceBaseContent(int content); 8701 private native void nativeCopyBaseContentToPicture(Picture pict); 8702 private native boolean nativeHasContent(); 8703 private native void nativeStopGL(); 8704 private native void nativeDiscardAllTextures(); 8705 private native void nativeTileProfilingStart(); 8706 private native float nativeTileProfilingStop(); 8707 private native void nativeTileProfilingClear(); 8708 private native int nativeTileProfilingNumFrames(); 8709 private native int nativeTileProfilingNumTilesInFrame(int frame); 8710 private native int nativeTileProfilingGetInt(int frame, int tile, String key); 8711 private native float nativeTileProfilingGetFloat(int frame, int tile, String key); 8712 8713 private native void nativeUseHardwareAccelSkia(boolean enabled); 8714 8715 // Returns a pointer to the scrollable LayerAndroid at the given point. 8716 private native int nativeScrollableLayer(int x, int y, Rect scrollRect, 8717 Rect scrollBounds); 8718 /** 8719 * Scroll the specified layer. 8720 * @param layer Id of the layer to scroll, as determined by nativeScrollableLayer. 8721 * @param newX Destination x position to which to scroll. 8722 * @param newY Destination y position to which to scroll. 8723 * @return True if the layer is successfully scrolled. 8724 */ 8725 private native boolean nativeScrollLayer(int layer, int newX, int newY); 8726 private native void nativeSetIsScrolling(boolean isScrolling); 8727 private native int nativeGetBackgroundColor(); 8728 native boolean nativeSetProperty(String key, String value); 8729 native String nativeGetProperty(String key); 8730 /** 8731 * See {@link ComponentCallbacks2} for the trim levels and descriptions 8732 */ 8733 private static native void nativeOnTrimMemory(int level); 8734 private static native void nativeSetPauseDrawing(int instance, boolean pause); 8735 private static native void nativeSetTextSelection(int instance, int selection); 8736 private static native int nativeGetHandleLayerId(int instance, int handle, 8737 Point cursorLocation, QuadF textQuad); 8738 private static native boolean nativeIsBaseFirst(int instance); 8739 private static native void nativeMapLayerRect(int instance, int layerId, 8740 Rect rect); 8741 // Returns 1 if a layer sync is needed, else 0 8742 private static native int nativeSetHwAccelerated(int instance, boolean hwAccelerated); 8743} 8744