1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.webkit; 18 19 import android.annotation.Widget; 20 import android.content.Context; 21 import android.content.res.Configuration; 22 import android.graphics.Bitmap; 23 import android.graphics.Canvas; 24 import android.graphics.Paint; 25 import android.graphics.Picture; 26 import android.graphics.Rect; 27 import android.graphics.drawable.Drawable; 28 import android.net.http.SslCertificate; 29 import android.os.Build; 30 import android.os.Bundle; 31 import android.os.Looper; 32 import android.os.Message; 33 import android.os.StrictMode; 34 import android.util.AttributeSet; 35 import android.util.Log; 36 import android.view.KeyEvent; 37 import android.view.MotionEvent; 38 import android.view.View; 39 import android.view.ViewDebug; 40 import android.view.ViewGroup; 41 import android.view.ViewTreeObserver; 42 import android.view.accessibility.AccessibilityEvent; 43 import android.view.accessibility.AccessibilityNodeInfo; 44 import android.view.inputmethod.EditorInfo; 45 import android.view.inputmethod.InputConnection; 46 import android.widget.AbsoluteLayout; 47 48 import java.io.BufferedWriter; 49 import java.io.File; 50 import java.util.Map; 51 52 /** 53 * <p>A View that displays web pages. This class is the basis upon which you 54 * can roll your own web browser or simply display some online content within your Activity. 55 * It uses the WebKit rendering engine to display 56 * web pages and includes methods to navigate forward and backward 57 * through a history, zoom in and out, perform text searches and more.</p> 58 * <p>To enable the built-in zoom, set 59 * {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)} 60 * (introduced in API level {@link android.os.Build.VERSION_CODES#CUPCAKE}). 61 * <p>Note that, in order for your Activity to access the Internet and load web pages 62 * in a WebView, you must add the {@code INTERNET} permissions to your 63 * Android Manifest file:</p> 64 * <pre><uses-permission android:name="android.permission.INTERNET" /></pre> 65 * 66 * <p>This must be a child of the <a 67 * href="{@docRoot}guide/topics/manifest/manifest-element.html">{@code <manifest>}</a> 68 * element.</p> 69 * 70 * <p>For more information, read 71 * <a href="{@docRoot}guide/webapps/webview.html">Building Web Apps in WebView</a>.</p> 72 * 73 * <h3>Basic usage</h3> 74 * 75 * <p>By default, a WebView provides no browser-like widgets, does not 76 * enable JavaScript and web page errors are ignored. If your goal is only 77 * to display some HTML as a part of your UI, this is probably fine; 78 * the user won't need to interact with the web page beyond reading 79 * it, and the web page won't need to interact with the user. If you 80 * actually want a full-blown web browser, then you probably want to 81 * invoke the Browser application with a URL Intent rather than show it 82 * with a WebView. For example: 83 * <pre> 84 * Uri uri = Uri.parse("http://www.example.com"); 85 * Intent intent = new Intent(Intent.ACTION_VIEW, uri); 86 * startActivity(intent); 87 * </pre> 88 * <p>See {@link android.content.Intent} for more information.</p> 89 * 90 * <p>To provide a WebView in your own Activity, include a {@code <WebView>} in your layout, 91 * or set the entire Activity window as a WebView during {@link 92 * android.app.Activity#onCreate(Bundle) onCreate()}:</p> 93 * <pre class="prettyprint"> 94 * WebView webview = new WebView(this); 95 * setContentView(webview); 96 * </pre> 97 * 98 * <p>Then load the desired web page:</p> 99 * <pre> 100 * // Simplest usage: note that an exception will NOT be thrown 101 * // if there is an error loading this page (see below). 102 * webview.loadUrl("http://slashdot.org/"); 103 * 104 * // OR, you can also load from an HTML string: 105 * String summary = "<html><body>You scored <b>192</b> points.</body></html>"; 106 * webview.loadData(summary, "text/html", null); 107 * // ... although note that there are restrictions on what this HTML can do. 108 * // See the JavaDocs for {@link #loadData(String,String,String) loadData()} and {@link 109 * #loadDataWithBaseURL(String,String,String,String,String) loadDataWithBaseURL()} for more info. 110 * </pre> 111 * 112 * <p>A WebView has several customization points where you can add your 113 * own behavior. These are:</p> 114 * 115 * <ul> 116 * <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass. 117 * This class is called when something that might impact a 118 * browser UI happens, for instance, progress updates and 119 * JavaScript alerts are sent here (see <a 120 * href="{@docRoot}guide/developing/debug-tasks.html#DebuggingWebPages">Debugging Tasks</a>). 121 * </li> 122 * <li>Creating and setting a {@link android.webkit.WebViewClient} subclass. 123 * It will be called when things happen that impact the 124 * rendering of the content, eg, errors or form submissions. You 125 * can also intercept URL loading here (via {@link 126 * android.webkit.WebViewClient#shouldOverrideUrlLoading(WebView,String) 127 * shouldOverrideUrlLoading()}).</li> 128 * <li>Modifying the {@link android.webkit.WebSettings}, such as 129 * enabling JavaScript with {@link android.webkit.WebSettings#setJavaScriptEnabled(boolean) 130 * setJavaScriptEnabled()}. </li> 131 * <li>Injecting Java objects into the WebView using the 132 * {@link android.webkit.WebView#addJavascriptInterface} method. This 133 * method allows you to inject Java objects into a page's JavaScript 134 * context, so that they can be accessed by JavaScript in the page.</li> 135 * </ul> 136 * 137 * <p>Here's a more complicated example, showing error handling, 138 * settings, and progress notification:</p> 139 * 140 * <pre class="prettyprint"> 141 * // Let's display the progress in the activity title bar, like the 142 * // browser app does. 143 * getWindow().requestFeature(Window.FEATURE_PROGRESS); 144 * 145 * webview.getSettings().setJavaScriptEnabled(true); 146 * 147 * final Activity activity = this; 148 * webview.setWebChromeClient(new WebChromeClient() { 149 * public void onProgressChanged(WebView view, int progress) { 150 * // Activities and WebViews measure progress with different scales. 151 * // The progress meter will automatically disappear when we reach 100% 152 * activity.setProgress(progress * 1000); 153 * } 154 * }); 155 * webview.setWebViewClient(new WebViewClient() { 156 * public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { 157 * Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); 158 * } 159 * }); 160 * 161 * webview.loadUrl("http://slashdot.org/"); 162 * </pre> 163 * 164 * <h3>Cookie and window management</h3> 165 * 166 * <p>For obvious security reasons, your application has its own 167 * cache, cookie store etc.—it does not share the Browser 168 * application's data. 169 * </p> 170 * 171 * <p>By default, requests by the HTML to open new windows are 172 * ignored. This is true whether they be opened by JavaScript or by 173 * the target attribute on a link. You can customize your 174 * {@link WebChromeClient} to provide your own behaviour for opening multiple windows, 175 * and render them in whatever manner you want.</p> 176 * 177 * <p>The standard behavior for an Activity is to be destroyed and 178 * recreated when the device orientation or any other configuration changes. This will cause 179 * the WebView to reload the current page. If you don't want that, you 180 * can set your Activity to handle the {@code orientation} and {@code keyboardHidden} 181 * changes, and then just leave the WebView alone. It'll automatically 182 * re-orient itself as appropriate. Read <a 183 * href="{@docRoot}guide/topics/resources/runtime-changes.html">Handling Runtime Changes</a> for 184 * more information about how to handle configuration changes during runtime.</p> 185 * 186 * 187 * <h3>Building web pages to support different screen densities</h3> 188 * 189 * <p>The screen density of a device is based on the screen resolution. A screen with low density 190 * has fewer available pixels per inch, where a screen with high density 191 * has more — sometimes significantly more — pixels per inch. The density of a 192 * screen is important because, other things being equal, a UI element (such as a button) whose 193 * height and width are defined in terms of screen pixels will appear larger on the lower density 194 * screen and smaller on the higher density screen. 195 * For simplicity, Android collapses all actual screen densities into three generalized densities: 196 * high, medium, and low.</p> 197 * <p>By default, WebView scales a web page so that it is drawn at a size that matches the default 198 * appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen 199 * (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels 200 * are bigger). 201 * Starting with API level {@link android.os.Build.VERSION_CODES#ECLAIR}, WebView supports DOM, CSS, 202 * and meta tag features to help you (as a web developer) target screens with different screen 203 * densities.</p> 204 * <p>Here's a summary of the features you can use to handle different screen densities:</p> 205 * <ul> 206 * <li>The {@code window.devicePixelRatio} DOM property. The value of this property specifies the 207 * default scaling factor used for the current device. For example, if the value of {@code 208 * window.devicePixelRatio} is "1.0", then the device is considered a medium density (mdpi) device 209 * and default scaling is not applied to the web page; if the value is "1.5", then the device is 210 * considered a high density device (hdpi) and the page content is scaled 1.5x; if the 211 * value is "0.75", then the device is considered a low density device (ldpi) and the content is 212 * scaled 0.75x.</li> 213 * <li>The {@code -webkit-device-pixel-ratio} CSS media query. Use this to specify the screen 214 * densities for which this style sheet is to be used. The corresponding value should be either 215 * "0.75", "1", or "1.5", to indicate that the styles are for devices with low density, medium 216 * density, or high density screens, respectively. For example: 217 * <pre> 218 * <link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /></pre> 219 * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5, 220 * which is the high density pixel ratio.</p> 221 * </li> 222 * 223 * <h3>HTML5 Video support</h3> 224 * 225 * <p>In order to support inline HTML5 video in your application, you need to have hardware 226 * acceleration turned on, and set a {@link android.webkit.WebChromeClient}. For full screen support, 227 * implementations of {@link WebChromeClient#onShowCustomView(View, WebChromeClient.CustomViewCallback)} 228 * and {@link WebChromeClient#onHideCustomView()} are required, 229 * {@link WebChromeClient#getVideoLoadingProgressView()} is optional. 230 * </p> 231 */ 232 // Implementation notes. 233 // The WebView is a thin API class that delegates its public API to a backend WebViewProvider 234 // class instance. WebView extends {@link AbsoluteLayout} for backward compatibility reasons. 235 // Methods are delegated to the provider implementation: all public API methods introduced in this 236 // file are fully delegated, whereas public and protected methods from the View base classes are 237 // only delegated where a specific need exists for them to do so. 238 @Widget 239 public class WebView extends AbsoluteLayout 240 implements ViewTreeObserver.OnGlobalFocusChangeListener, 241 ViewGroup.OnHierarchyChangeListener, ViewDebug.HierarchyHandler { 242 243 private static final String LOGTAG = "webview_proxy"; 244 245 // Throwing an exception for incorrect thread usage if the 246 // build target is JB MR2 or newer. Defaults to false, and is 247 // set in the WebView constructor. 248 private static Boolean sEnforceThreadChecking = false; 249 250 /** 251 * Transportation object for returning WebView across thread boundaries. 252 */ 253 public class WebViewTransport { 254 private WebView mWebview; 255 256 /** 257 * Sets the WebView to the transportation object. 258 * 259 * @param webview the WebView to transport 260 */ 261 public synchronized void setWebView(WebView webview) { 262 mWebview = webview; 263 } 264 265 /** 266 * Gets the WebView object. 267 * 268 * @return the transported WebView object 269 */ 270 public synchronized WebView getWebView() { 271 return mWebview; 272 } 273 } 274 275 /** 276 * URI scheme for telephone number. 277 */ 278 public static final String SCHEME_TEL = "tel:"; 279 /** 280 * URI scheme for email address. 281 */ 282 public static final String SCHEME_MAILTO = "mailto:"; 283 /** 284 * URI scheme for map address. 285 */ 286 public static final String SCHEME_GEO = "geo:0,0?q="; 287 288 /** 289 * Interface to listen for find results. 290 */ 291 public interface FindListener { 292 /** 293 * Notifies the listener about progress made by a find operation. 294 * 295 * @param activeMatchOrdinal the zero-based ordinal of the currently selected match 296 * @param numberOfMatches how many matches have been found 297 * @param isDoneCounting whether the find operation has actually completed. The listener 298 * may be notified multiple times while the 299 * operation is underway, and the numberOfMatches 300 * value should not be considered final unless 301 * isDoneCounting is true. 302 */ 303 public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, 304 boolean isDoneCounting); 305 } 306 307 /** 308 * Interface to listen for new pictures as they change. 309 * 310 * @deprecated This interface is now obsolete. 311 */ 312 @Deprecated 313 public interface PictureListener { 314 /** 315 * Used to provide notification that the WebView's picture has changed. 316 * See {@link WebView#capturePicture} for details of the picture. 317 * 318 * @param view the WebView that owns the picture 319 * @param picture the new picture. Applications targeting 320 * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR2} or above 321 * will always receive a null Picture. 322 * @deprecated Deprecated due to internal changes. 323 */ 324 @Deprecated 325 public void onNewPicture(WebView view, Picture picture); 326 } 327 328 public static class HitTestResult { 329 /** 330 * Default HitTestResult, where the target is unknown. 331 */ 332 public static final int UNKNOWN_TYPE = 0; 333 /** 334 * @deprecated This type is no longer used. 335 */ 336 @Deprecated 337 public static final int ANCHOR_TYPE = 1; 338 /** 339 * HitTestResult for hitting a phone number. 340 */ 341 public static final int PHONE_TYPE = 2; 342 /** 343 * HitTestResult for hitting a map address. 344 */ 345 public static final int GEO_TYPE = 3; 346 /** 347 * HitTestResult for hitting an email address. 348 */ 349 public static final int EMAIL_TYPE = 4; 350 /** 351 * HitTestResult for hitting an HTML::img tag. 352 */ 353 public static final int IMAGE_TYPE = 5; 354 /** 355 * @deprecated This type is no longer used. 356 */ 357 @Deprecated 358 public static final int IMAGE_ANCHOR_TYPE = 6; 359 /** 360 * HitTestResult for hitting a HTML::a tag with src=http. 361 */ 362 public static final int SRC_ANCHOR_TYPE = 7; 363 /** 364 * HitTestResult for hitting a HTML::a tag with src=http + HTML::img. 365 */ 366 public static final int SRC_IMAGE_ANCHOR_TYPE = 8; 367 /** 368 * HitTestResult for hitting an edit text area. 369 */ 370 public static final int EDIT_TEXT_TYPE = 9; 371 372 private int mType; 373 private String mExtra; 374 375 /** 376 * @hide Only for use by WebViewProvider implementations 377 */ 378 public HitTestResult() { 379 mType = UNKNOWN_TYPE; 380 } 381 382 /** 383 * @hide Only for use by WebViewProvider implementations 384 */ 385 public void setType(int type) { 386 mType = type; 387 } 388 389 /** 390 * @hide Only for use by WebViewProvider implementations 391 */ 392 public void setExtra(String extra) { 393 mExtra = extra; 394 } 395 396 /** 397 * Gets the type of the hit test result. See the XXX_TYPE constants 398 * defined in this class. 399 * 400 * @return the type of the hit test result 401 */ 402 public int getType() { 403 return mType; 404 } 405 406 /** 407 * Gets additional type-dependant information about the result. See 408 * {@link WebView#getHitTestResult()} for details. May either be null 409 * or contain extra information about this result. 410 * 411 * @return additional type-dependant information about the result 412 */ 413 public String getExtra() { 414 return mExtra; 415 } 416 } 417 418 /** 419 * Constructs a new WebView with a Context object. 420 * 421 * @param context a Context object used to access application assets 422 */ 423 public WebView(Context context) { 424 this(context, null); 425 } 426 427 /** 428 * Constructs a new WebView with layout parameters. 429 * 430 * @param context a Context object used to access application assets 431 * @param attrs an AttributeSet passed to our parent 432 */ 433 public WebView(Context context, AttributeSet attrs) { 434 this(context, attrs, com.android.internal.R.attr.webViewStyle); 435 } 436 437 /** 438 * Constructs a new WebView with layout parameters and a default style. 439 * 440 * @param context a Context object used to access application assets 441 * @param attrs an AttributeSet passed to our parent 442 * @param defStyle the default style resource ID 443 */ 444 public WebView(Context context, AttributeSet attrs, int defStyle) { 445 this(context, attrs, defStyle, false); 446 } 447 448 /** 449 * Constructs a new WebView with layout parameters and a default style. 450 * 451 * @param context a Context object used to access application assets 452 * @param attrs an AttributeSet passed to our parent 453 * @param defStyle the default style resource ID 454 * @param privateBrowsing whether this WebView will be initialized in 455 * private mode 456 * 457 * @deprecated Private browsing is no longer supported directly via 458 * WebView and will be removed in a future release. Prefer using 459 * {@link WebSettings}, {@link WebViewDatabase}, {@link CookieManager} 460 * and {@link WebStorage} for fine-grained control of privacy data. 461 */ 462 @Deprecated 463 public WebView(Context context, AttributeSet attrs, int defStyle, 464 boolean privateBrowsing) { 465 this(context, attrs, defStyle, null, privateBrowsing); 466 } 467 468 /** 469 * Constructs a new WebView with layout parameters, a default style and a set 470 * of custom Javscript interfaces to be added to this WebView at initialization 471 * time. This guarantees that these interfaces will be available when the JS 472 * context is initialized. 473 * 474 * @param context a Context object used to access application assets 475 * @param attrs an AttributeSet passed to our parent 476 * @param defStyle the default style resource ID 477 * @param javaScriptInterfaces a Map of interface names, as keys, and 478 * object implementing those interfaces, as 479 * values 480 * @param privateBrowsing whether this WebView will be initialized in 481 * private mode 482 * @hide This is used internally by dumprendertree, as it requires the javaScript interfaces to 483 * be added synchronously, before a subsequent loadUrl call takes effect. 484 */ 485 @SuppressWarnings("deprecation") // for super() call into deprecated base class constructor. 486 protected WebView(Context context, AttributeSet attrs, int defStyle, 487 Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { 488 super(context, attrs, defStyle); 489 if (context == null) { 490 throw new IllegalArgumentException("Invalid context argument"); 491 } 492 sEnforceThreadChecking = context.getApplicationInfo().targetSdkVersion >= 493 Build.VERSION_CODES.JELLY_BEAN_MR2; 494 checkThread(); 495 496 ensureProviderCreated(); 497 mProvider.init(javaScriptInterfaces, privateBrowsing); 498 } 499 500 /** 501 * Specifies whether the horizontal scrollbar has overlay style. 502 * 503 * @param overlay true if horizontal scrollbar should have overlay style 504 */ 505 public void setHorizontalScrollbarOverlay(boolean overlay) { 506 checkThread(); 507 mProvider.setHorizontalScrollbarOverlay(overlay); 508 } 509 510 /** 511 * Specifies whether the vertical scrollbar has overlay style. 512 * 513 * @param overlay true if vertical scrollbar should have overlay style 514 */ 515 public void setVerticalScrollbarOverlay(boolean overlay) { 516 checkThread(); 517 mProvider.setVerticalScrollbarOverlay(overlay); 518 } 519 520 /** 521 * Gets whether horizontal scrollbar has overlay style. 522 * 523 * @return true if horizontal scrollbar has overlay style 524 */ 525 public boolean overlayHorizontalScrollbar() { 526 checkThread(); 527 return mProvider.overlayHorizontalScrollbar(); 528 } 529 530 /** 531 * Gets whether vertical scrollbar has overlay style. 532 * 533 * @return true if vertical scrollbar has overlay style 534 */ 535 public boolean overlayVerticalScrollbar() { 536 checkThread(); 537 return mProvider.overlayVerticalScrollbar(); 538 } 539 540 /** 541 * Gets the visible height (in pixels) of the embedded title bar (if any). 542 * 543 * @deprecated This method is now obsolete. 544 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} 545 */ 546 public int getVisibleTitleHeight() { 547 checkThread(); 548 return mProvider.getVisibleTitleHeight(); 549 } 550 551 /** 552 * Gets the SSL certificate for the main top-level page or null if there is 553 * no certificate (the site is not secure). 554 * 555 * @return the SSL certificate for the main top-level page 556 */ 557 public SslCertificate getCertificate() { 558 checkThread(); 559 return mProvider.getCertificate(); 560 } 561 562 /** 563 * Sets the SSL certificate for the main top-level page. 564 * 565 * @deprecated Calling this function has no useful effect, and will be 566 * ignored in future releases. 567 */ 568 @Deprecated 569 public void setCertificate(SslCertificate certificate) { 570 checkThread(); 571 mProvider.setCertificate(certificate); 572 } 573 574 //------------------------------------------------------------------------- 575 // Methods called by activity 576 //------------------------------------------------------------------------- 577 578 /** 579 * Sets a username and password pair for the specified host. This data is 580 * used by the Webview to autocomplete username and password fields in web 581 * forms. Note that this is unrelated to the credentials used for HTTP 582 * authentication. 583 * 584 * @param host the host that required the credentials 585 * @param username the username for the given host 586 * @param password the password for the given host 587 * @see WebViewDatabase#clearUsernamePassword 588 * @see WebViewDatabase#hasUsernamePassword 589 * @deprecated Saving passwords in WebView will not be supported in future versions. 590 */ 591 @Deprecated 592 public void savePassword(String host, String username, String password) { 593 checkThread(); 594 mProvider.savePassword(host, username, password); 595 } 596 597 /** 598 * Stores HTTP authentication credentials for a given host and realm. This 599 * method is intended to be used with 600 * {@link WebViewClient#onReceivedHttpAuthRequest}. 601 * 602 * @param host the host to which the credentials apply 603 * @param realm the realm to which the credentials apply 604 * @param username the username 605 * @param password the password 606 * @see #getHttpAuthUsernamePassword 607 * @see WebViewDatabase#hasHttpAuthUsernamePassword 608 * @see WebViewDatabase#clearHttpAuthUsernamePassword 609 */ 610 public void setHttpAuthUsernamePassword(String host, String realm, 611 String username, String password) { 612 checkThread(); 613 mProvider.setHttpAuthUsernamePassword(host, realm, username, password); 614 } 615 616 /** 617 * Retrieves HTTP authentication credentials for a given host and realm. 618 * This method is intended to be used with 619 * {@link WebViewClient#onReceivedHttpAuthRequest}. 620 * 621 * @param host the host to which the credentials apply 622 * @param realm the realm to which the credentials apply 623 * @return the credentials as a String array, if found. The first element 624 * is the username and the second element is the password. Null if 625 * no credentials are found. 626 * @see #setHttpAuthUsernamePassword 627 * @see WebViewDatabase#hasHttpAuthUsernamePassword 628 * @see WebViewDatabase#clearHttpAuthUsernamePassword 629 */ 630 public String[] getHttpAuthUsernamePassword(String host, String realm) { 631 checkThread(); 632 return mProvider.getHttpAuthUsernamePassword(host, realm); 633 } 634 635 /** 636 * Destroys the internal state of this WebView. This method should be called 637 * after this WebView has been removed from the view system. No other 638 * methods may be called on this WebView after destroy. 639 */ 640 public void destroy() { 641 checkThread(); 642 mProvider.destroy(); 643 } 644 645 /** 646 * Enables platform notifications of data state and proxy changes. 647 * Notifications are enabled by default. 648 * 649 * @deprecated This method is now obsolete. 650 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} 651 */ 652 @Deprecated 653 public static void enablePlatformNotifications() { 654 checkThread(); 655 getFactory().getStatics().setPlatformNotificationsEnabled(true); 656 } 657 658 /** 659 * Disables platform notifications of data state and proxy changes. 660 * Notifications are enabled by default. 661 * 662 * @deprecated This method is now obsolete. 663 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} 664 */ 665 @Deprecated 666 public static void disablePlatformNotifications() { 667 checkThread(); 668 getFactory().getStatics().setPlatformNotificationsEnabled(false); 669 } 670 671 /** 672 * Informs WebView of the network state. This is used to set 673 * the JavaScript property window.navigator.isOnline and 674 * generates the online/offline event as specified in HTML5, sec. 5.7.7 675 * 676 * @param networkUp a boolean indicating if network is available 677 */ 678 public void setNetworkAvailable(boolean networkUp) { 679 checkThread(); 680 mProvider.setNetworkAvailable(networkUp); 681 } 682 683 /** 684 * Saves the state of this WebView used in 685 * {@link android.app.Activity#onSaveInstanceState}. Please note that this 686 * method no longer stores the display data for this WebView. The previous 687 * behavior could potentially leak files if {@link #restoreState} was never 688 * called. 689 * 690 * @param outState the Bundle to store this WebView's state 691 * @return the same copy of the back/forward list used to save the state. If 692 * saveState fails, the returned list will be null. 693 */ 694 public WebBackForwardList saveState(Bundle outState) { 695 checkThread(); 696 return mProvider.saveState(outState); 697 } 698 699 /** 700 * Saves the current display data to the Bundle given. Used in conjunction 701 * with {@link #saveState}. 702 * @param b a Bundle to store the display data 703 * @param dest the file to store the serialized picture data. Will be 704 * overwritten with this WebView's picture data. 705 * @return true if the picture was successfully saved 706 * @deprecated This method is now obsolete. 707 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} 708 */ 709 @Deprecated 710 public boolean savePicture(Bundle b, final File dest) { 711 checkThread(); 712 return mProvider.savePicture(b, dest); 713 } 714 715 /** 716 * Restores the display data that was saved in {@link #savePicture}. Used in 717 * conjunction with {@link #restoreState}. Note that this will not work if 718 * this WebView is hardware accelerated. 719 * 720 * @param b a Bundle containing the saved display data 721 * @param src the file where the picture data was stored 722 * @return true if the picture was successfully restored 723 * @deprecated This method is now obsolete. 724 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} 725 */ 726 @Deprecated 727 public boolean restorePicture(Bundle b, File src) { 728 checkThread(); 729 return mProvider.restorePicture(b, src); 730 } 731 732 /** 733 * Restores the state of this WebView from the given Bundle. This method is 734 * intended for use in {@link android.app.Activity#onRestoreInstanceState} 735 * and should be called to restore the state of this WebView. If 736 * it is called after this WebView has had a chance to build state (load 737 * pages, create a back/forward list, etc.) there may be undesirable 738 * side-effects. Please note that this method no longer restores the 739 * display data for this WebView. 740 * 741 * @param inState the incoming Bundle of state 742 * @return the restored back/forward list or null if restoreState failed 743 */ 744 public WebBackForwardList restoreState(Bundle inState) { 745 checkThread(); 746 return mProvider.restoreState(inState); 747 } 748 749 /** 750 * Loads the given URL with the specified additional HTTP headers. 751 * 752 * @param url the URL of the resource to load 753 * @param additionalHttpHeaders the additional headers to be used in the 754 * HTTP request for this URL, specified as a map from name to 755 * value. Note that if this map contains any of the headers 756 * that are set by default by this WebView, such as those 757 * controlling caching, accept types or the User-Agent, their 758 * values may be overriden by this WebView's defaults. 759 */ 760 public void loadUrl(String url, Map<String, String> additionalHttpHeaders) { 761 checkThread(); 762 mProvider.loadUrl(url, additionalHttpHeaders); 763 } 764 765 /** 766 * Loads the given URL. 767 * 768 * @param url the URL of the resource to load 769 */ 770 public void loadUrl(String url) { 771 checkThread(); 772 mProvider.loadUrl(url); 773 } 774 775 /** 776 * Loads the URL with postData using "POST" method into this WebView. If url 777 * is not a network URL, it will be loaded with {link 778 * {@link #loadUrl(String)} instead. 779 * 780 * @param url the URL of the resource to load 781 * @param postData the data will be passed to "POST" request 782 */ 783 public void postUrl(String url, byte[] postData) { 784 checkThread(); 785 mProvider.postUrl(url, postData); 786 } 787 788 /** 789 * Loads the given data into this WebView using a 'data' scheme URL. 790 * <p> 791 * Note that JavaScript's same origin policy means that script running in a 792 * page loaded using this method will be unable to access content loaded 793 * using any scheme other than 'data', including 'http(s)'. To avoid this 794 * restriction, use {@link 795 * #loadDataWithBaseURL(String,String,String,String,String) 796 * loadDataWithBaseURL()} with an appropriate base URL. 797 * <p> 798 * The encoding parameter specifies whether the data is base64 or URL 799 * encoded. If the data is base64 encoded, the value of the encoding 800 * parameter must be 'base64'. For all other values of the parameter, 801 * including null, it is assumed that the data uses ASCII encoding for 802 * octets inside the range of safe URL characters and use the standard %xx 803 * hex encoding of URLs for octets outside that range. For example, '#', 804 * '%', '\', '?' should be replaced by %23, %25, %27, %3f respectively. 805 * <p> 806 * The 'data' scheme URL formed by this method uses the default US-ASCII 807 * charset. If you need need to set a different charset, you should form a 808 * 'data' scheme URL which explicitly specifies a charset parameter in the 809 * mediatype portion of the URL and call {@link #loadUrl(String)} instead. 810 * Note that the charset obtained from the mediatype portion of a data URL 811 * always overrides that specified in the HTML or XML document itself. 812 * 813 * @param data a String of data in the given encoding 814 * @param mimeType the MIME type of the data, e.g. 'text/html' 815 * @param encoding the encoding of the data 816 */ 817 public void loadData(String data, String mimeType, String encoding) { 818 checkThread(); 819 mProvider.loadData(data, mimeType, encoding); 820 } 821 822 /** 823 * Loads the given data into this WebView, using baseUrl as the base URL for 824 * the content. The base URL is used both to resolve relative URLs and when 825 * applying JavaScript's same origin policy. The historyUrl is used for the 826 * history entry. 827 * <p> 828 * Note that content specified in this way can access local device files 829 * (via 'file' scheme URLs) only if baseUrl specifies a scheme other than 830 * 'http', 'https', 'ftp', 'ftps', 'about' or 'javascript'. 831 * <p> 832 * If the base URL uses the data scheme, this method is equivalent to 833 * calling {@link #loadData(String,String,String) loadData()} and the 834 * historyUrl is ignored. 835 * 836 * @param baseUrl the URL to use as the page's base URL. If null defaults to 837 * 'about:blank'. 838 * @param data a String of data in the given encoding 839 * @param mimeType the MIMEType of the data, e.g. 'text/html'. If null, 840 * defaults to 'text/html'. 841 * @param encoding the encoding of the data 842 * @param historyUrl the URL to use as the history entry. If null defaults 843 * to 'about:blank'. If non-null, this must be a valid URL. 844 */ 845 public void loadDataWithBaseURL(String baseUrl, String data, 846 String mimeType, String encoding, String historyUrl) { 847 checkThread(); 848 mProvider.loadDataWithBaseURL(baseUrl, data, mimeType, encoding, historyUrl); 849 } 850 851 /** 852 * Saves the current view as a web archive. 853 * 854 * @param filename the filename where the archive should be placed 855 */ 856 public void saveWebArchive(String filename) { 857 checkThread(); 858 mProvider.saveWebArchive(filename); 859 } 860 861 /** 862 * Saves the current view as a web archive. 863 * 864 * @param basename the filename where the archive should be placed 865 * @param autoname if false, takes basename to be a file. If true, basename 866 * is assumed to be a directory in which a filename will be 867 * chosen according to the URL of the current page. 868 * @param callback called after the web archive has been saved. The 869 * parameter for onReceiveValue will either be the filename 870 * under which the file was saved, or null if saving the 871 * file failed. 872 */ 873 public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) { 874 checkThread(); 875 mProvider.saveWebArchive(basename, autoname, callback); 876 } 877 878 /** 879 * Stops the current load. 880 */ 881 public void stopLoading() { 882 checkThread(); 883 mProvider.stopLoading(); 884 } 885 886 /** 887 * Reloads the current URL. 888 */ 889 public void reload() { 890 checkThread(); 891 mProvider.reload(); 892 } 893 894 /** 895 * Gets whether this WebView has a back history item. 896 * 897 * @return true iff this WebView has a back history item 898 */ 899 public boolean canGoBack() { 900 checkThread(); 901 return mProvider.canGoBack(); 902 } 903 904 /** 905 * Goes back in the history of this WebView. 906 */ 907 public void goBack() { 908 checkThread(); 909 mProvider.goBack(); 910 } 911 912 /** 913 * Gets whether this WebView has a forward history item. 914 * 915 * @return true iff this Webview has a forward history item 916 */ 917 public boolean canGoForward() { 918 checkThread(); 919 return mProvider.canGoForward(); 920 } 921 922 /** 923 * Goes forward in the history of this WebView. 924 */ 925 public void goForward() { 926 checkThread(); 927 mProvider.goForward(); 928 } 929 930 /** 931 * Gets whether the page can go back or forward the given 932 * number of steps. 933 * 934 * @param steps the negative or positive number of steps to move the 935 * history 936 */ 937 public boolean canGoBackOrForward(int steps) { 938 checkThread(); 939 return mProvider.canGoBackOrForward(steps); 940 } 941 942 /** 943 * Goes to the history item that is the number of steps away from 944 * the current item. Steps is negative if backward and positive 945 * if forward. 946 * 947 * @param steps the number of steps to take back or forward in the back 948 * forward list 949 */ 950 public void goBackOrForward(int steps) { 951 checkThread(); 952 mProvider.goBackOrForward(steps); 953 } 954 955 /** 956 * Gets whether private browsing is enabled in this WebView. 957 */ 958 public boolean isPrivateBrowsingEnabled() { 959 checkThread(); 960 return mProvider.isPrivateBrowsingEnabled(); 961 } 962 963 /** 964 * Scrolls the contents of this WebView up by half the view size. 965 * 966 * @param top true to jump to the top of the page 967 * @return true if the page was scrolled 968 */ 969 public boolean pageUp(boolean top) { 970 checkThread(); 971 return mProvider.pageUp(top); 972 } 973 974 /** 975 * Scrolls the contents of this WebView down by half the page size. 976 * 977 * @param bottom true to jump to bottom of page 978 * @return true if the page was scrolled 979 */ 980 public boolean pageDown(boolean bottom) { 981 checkThread(); 982 return mProvider.pageDown(bottom); 983 } 984 985 /** 986 * Clears this WebView so that onDraw() will draw nothing but white background, 987 * and onMeasure() will return 0 if MeasureSpec is not MeasureSpec.EXACTLY. 988 * @deprecated Use WebView.loadUrl("about:blank") to reliably reset the view state 989 * and release page resources (including any running JavaScript). 990 */ 991 @Deprecated 992 public void clearView() { 993 checkThread(); 994 mProvider.clearView(); 995 } 996 997 /** 998 * Gets a new picture that captures the current contents of this WebView. 999 * The picture is of the entire document being displayed, and is not 1000 * limited to the area currently displayed by this WebView. Also, the 1001 * picture is a static copy and is unaffected by later changes to the 1002 * content being displayed. 1003 * <p> 1004 * Note that due to internal changes, for API levels between 1005 * {@link android.os.Build.VERSION_CODES#HONEYCOMB} and 1006 * {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH} inclusive, the 1007 * picture does not include fixed position elements or scrollable divs. 1008 * 1009 * @return a picture that captures the current contents of this WebView 1010 */ 1011 public Picture capturePicture() { 1012 checkThread(); 1013 return mProvider.capturePicture(); 1014 } 1015 1016 /** 1017 * Gets the current scale of this WebView. 1018 * 1019 * @return the current scale 1020 * 1021 * @deprecated This method is prone to inaccuracy due to race conditions 1022 * between the web rendering and UI threads; prefer 1023 * {@link WebViewClient#onScaleChanged}. 1024 */ 1025 @Deprecated 1026 @ViewDebug.ExportedProperty(category = "webview") 1027 public float getScale() { 1028 checkThread(); 1029 return mProvider.getScale(); 1030 } 1031 1032 /** 1033 * Sets the initial scale for this WebView. 0 means default. If 1034 * {@link WebSettings#getUseWideViewPort()} is true, it zooms out all the 1035 * way. Otherwise it starts with 100%. If initial scale is greater than 0, 1036 * WebView starts with this value as initial scale. 1037 * Please note that unlike the scale properties in the viewport meta tag, 1038 * this method doesn't take the screen density into account. 1039 * 1040 * @param scaleInPercent the initial scale in percent 1041 */ 1042 public void setInitialScale(int scaleInPercent) { 1043 checkThread(); 1044 mProvider.setInitialScale(scaleInPercent); 1045 } 1046 1047 /** 1048 * Invokes the graphical zoom picker widget for this WebView. This will 1049 * result in the zoom widget appearing on the screen to control the zoom 1050 * level of this WebView. 1051 */ 1052 public void invokeZoomPicker() { 1053 checkThread(); 1054 mProvider.invokeZoomPicker(); 1055 } 1056 1057 /** 1058 * Gets a HitTestResult based on the current cursor node. If a HTML::a 1059 * tag is found and the anchor has a non-JavaScript URL, the HitTestResult 1060 * type is set to SRC_ANCHOR_TYPE and the URL is set in the "extra" field. 1061 * If the anchor does not have a URL or if it is a JavaScript URL, the type 1062 * will be UNKNOWN_TYPE and the URL has to be retrieved through 1063 * {@link #requestFocusNodeHref} asynchronously. If a HTML::img tag is 1064 * found, the HitTestResult type is set to IMAGE_TYPE and the URL is set in 1065 * the "extra" field. A type of 1066 * SRC_IMAGE_ANCHOR_TYPE indicates an anchor with a URL that has an image as 1067 * a child node. If a phone number is found, the HitTestResult type is set 1068 * to PHONE_TYPE and the phone number is set in the "extra" field of 1069 * HitTestResult. If a map address is found, the HitTestResult type is set 1070 * to GEO_TYPE and the address is set in the "extra" field of HitTestResult. 1071 * If an email address is found, the HitTestResult type is set to EMAIL_TYPE 1072 * and the email is set in the "extra" field of HitTestResult. Otherwise, 1073 * HitTestResult type is set to UNKNOWN_TYPE. 1074 */ 1075 public HitTestResult getHitTestResult() { 1076 checkThread(); 1077 return mProvider.getHitTestResult(); 1078 } 1079 1080 /** 1081 * Requests the anchor or image element URL at the last tapped point. 1082 * If hrefMsg is null, this method returns immediately and does not 1083 * dispatch hrefMsg to its target. If the tapped point hits an image, 1084 * an anchor, or an image in an anchor, the message associates 1085 * strings in named keys in its data. The value paired with the key 1086 * may be an empty string. 1087 * 1088 * @param hrefMsg the message to be dispatched with the result of the 1089 * request. The message data contains three keys. "url" 1090 * returns the anchor's href attribute. "title" returns the 1091 * anchor's text. "src" returns the image's src attribute. 1092 */ 1093 public void requestFocusNodeHref(Message hrefMsg) { 1094 checkThread(); 1095 mProvider.requestFocusNodeHref(hrefMsg); 1096 } 1097 1098 /** 1099 * Requests the URL of the image last touched by the user. msg will be sent 1100 * to its target with a String representing the URL as its object. 1101 * 1102 * @param msg the message to be dispatched with the result of the request 1103 * as the data member with "url" as key. The result can be null. 1104 */ 1105 public void requestImageRef(Message msg) { 1106 checkThread(); 1107 mProvider.requestImageRef(msg); 1108 } 1109 1110 /** 1111 * Gets the URL for the current page. This is not always the same as the URL 1112 * passed to WebViewClient.onPageStarted because although the load for 1113 * that URL has begun, the current page may not have changed. 1114 * 1115 * @return the URL for the current page 1116 */ 1117 @ViewDebug.ExportedProperty(category = "webview") 1118 public String getUrl() { 1119 checkThread(); 1120 return mProvider.getUrl(); 1121 } 1122 1123 /** 1124 * Gets the original URL for the current page. This is not always the same 1125 * as the URL passed to WebViewClient.onPageStarted because although the 1126 * load for that URL has begun, the current page may not have changed. 1127 * Also, there may have been redirects resulting in a different URL to that 1128 * originally requested. 1129 * 1130 * @return the URL that was originally requested for the current page 1131 */ 1132 @ViewDebug.ExportedProperty(category = "webview") 1133 public String getOriginalUrl() { 1134 checkThread(); 1135 return mProvider.getOriginalUrl(); 1136 } 1137 1138 /** 1139 * Gets the title for the current page. This is the title of the current page 1140 * until WebViewClient.onReceivedTitle is called. 1141 * 1142 * @return the title for the current page 1143 */ 1144 @ViewDebug.ExportedProperty(category = "webview") 1145 public String getTitle() { 1146 checkThread(); 1147 return mProvider.getTitle(); 1148 } 1149 1150 /** 1151 * Gets the favicon for the current page. This is the favicon of the current 1152 * page until WebViewClient.onReceivedIcon is called. 1153 * 1154 * @return the favicon for the current page 1155 */ 1156 public Bitmap getFavicon() { 1157 checkThread(); 1158 return mProvider.getFavicon(); 1159 } 1160 1161 /** 1162 * Gets the touch icon URL for the apple-touch-icon <link> element, or 1163 * a URL on this site's server pointing to the standard location of a 1164 * touch icon. 1165 * 1166 * @hide 1167 */ 1168 public String getTouchIconUrl() { 1169 return mProvider.getTouchIconUrl(); 1170 } 1171 1172 /** 1173 * Gets the progress for the current page. 1174 * 1175 * @return the progress for the current page between 0 and 100 1176 */ 1177 public int getProgress() { 1178 checkThread(); 1179 return mProvider.getProgress(); 1180 } 1181 1182 /** 1183 * Gets the height of the HTML content. 1184 * 1185 * @return the height of the HTML content 1186 */ 1187 @ViewDebug.ExportedProperty(category = "webview") 1188 public int getContentHeight() { 1189 checkThread(); 1190 return mProvider.getContentHeight(); 1191 } 1192 1193 /** 1194 * Gets the width of the HTML content. 1195 * 1196 * @return the width of the HTML content 1197 * @hide 1198 */ 1199 @ViewDebug.ExportedProperty(category = "webview") 1200 public int getContentWidth() { 1201 return mProvider.getContentWidth(); 1202 } 1203 1204 /** 1205 * Pauses all layout, parsing, and JavaScript timers for all WebViews. This 1206 * is a global requests, not restricted to just this WebView. This can be 1207 * useful if the application has been paused. 1208 */ 1209 public void pauseTimers() { 1210 checkThread(); 1211 mProvider.pauseTimers(); 1212 } 1213 1214 /** 1215 * Resumes all layout, parsing, and JavaScript timers for all WebViews. 1216 * This will resume dispatching all timers. 1217 */ 1218 public void resumeTimers() { 1219 checkThread(); 1220 mProvider.resumeTimers(); 1221 } 1222 1223 /** 1224 * Pauses any extra processing associated with this WebView and its 1225 * associated DOM, plugins, JavaScript etc. For example, if this WebView is 1226 * taken offscreen, this could be called to reduce unnecessary CPU or 1227 * network traffic. When this WebView is again "active", call onResume(). 1228 * Note that this differs from pauseTimers(), which affects all WebViews. 1229 */ 1230 public void onPause() { 1231 checkThread(); 1232 mProvider.onPause(); 1233 } 1234 1235 /** 1236 * Resumes a WebView after a previous call to onPause(). 1237 */ 1238 public void onResume() { 1239 checkThread(); 1240 mProvider.onResume(); 1241 } 1242 1243 /** 1244 * Gets whether this WebView is paused, meaning onPause() was called. 1245 * Calling onResume() sets the paused state back to false. 1246 * 1247 * @hide 1248 */ 1249 public boolean isPaused() { 1250 return mProvider.isPaused(); 1251 } 1252 1253 /** 1254 * Informs this WebView that memory is low so that it can free any available 1255 * memory. 1256 */ 1257 public void freeMemory() { 1258 checkThread(); 1259 mProvider.freeMemory(); 1260 } 1261 1262 /** 1263 * Clears the resource cache. Note that the cache is per-application, so 1264 * this will clear the cache for all WebViews used. 1265 * 1266 * @param includeDiskFiles if false, only the RAM cache is cleared 1267 */ 1268 public void clearCache(boolean includeDiskFiles) { 1269 checkThread(); 1270 mProvider.clearCache(includeDiskFiles); 1271 } 1272 1273 /** 1274 * Removes the autocomplete popup from the currently focused form field, if 1275 * present. Note this only affects the display of the autocomplete popup, 1276 * it does not remove any saved form data from this WebView's store. To do 1277 * that, use {@link WebViewDatabase#clearFormData}. 1278 */ 1279 public void clearFormData() { 1280 checkThread(); 1281 mProvider.clearFormData(); 1282 } 1283 1284 /** 1285 * Tells this WebView to clear its internal back/forward list. 1286 */ 1287 public void clearHistory() { 1288 checkThread(); 1289 mProvider.clearHistory(); 1290 } 1291 1292 /** 1293 * Clears the SSL preferences table stored in response to proceeding with 1294 * SSL certificate errors. 1295 */ 1296 public void clearSslPreferences() { 1297 checkThread(); 1298 mProvider.clearSslPreferences(); 1299 } 1300 1301 /** 1302 * Gets the WebBackForwardList for this WebView. This contains the 1303 * back/forward list for use in querying each item in the history stack. 1304 * This is a copy of the private WebBackForwardList so it contains only a 1305 * snapshot of the current state. Multiple calls to this method may return 1306 * different objects. The object returned from this method will not be 1307 * updated to reflect any new state. 1308 */ 1309 public WebBackForwardList copyBackForwardList() { 1310 checkThread(); 1311 return mProvider.copyBackForwardList(); 1312 1313 } 1314 1315 /** 1316 * Registers the listener to be notified as find-on-page operations 1317 * progress. This will replace the current listener. 1318 * 1319 * @param listener an implementation of {@link FindListener} 1320 */ 1321 public void setFindListener(FindListener listener) { 1322 checkThread(); 1323 setupFindListenerIfNeeded(); 1324 mFindListener.mUserFindListener = listener; 1325 } 1326 1327 /** 1328 * Highlights and scrolls to the next match found by 1329 * {@link #findAllAsync}, wrapping around page boundaries as necessary. 1330 * Notifies any registered {@link FindListener}. If {@link #findAllAsync(String)} 1331 * has not been called yet, or if {@link #clearMatches} has been called since the 1332 * last find operation, this function does nothing. 1333 * 1334 * @param forward the direction to search 1335 * @see #setFindListener 1336 */ 1337 public void findNext(boolean forward) { 1338 checkThread(); 1339 mProvider.findNext(forward); 1340 } 1341 1342 /** 1343 * Finds all instances of find on the page and highlights them. 1344 * Notifies any registered {@link FindListener}. 1345 * 1346 * @param find the string to find 1347 * @return the number of occurances of the String "find" that were found 1348 * @deprecated {@link #findAllAsync} is preferred. 1349 * @see #setFindListener 1350 */ 1351 @Deprecated 1352 public int findAll(String find) { 1353 checkThread(); 1354 StrictMode.noteSlowCall("findAll blocks UI: prefer findAllAsync"); 1355 return mProvider.findAll(find); 1356 } 1357 1358 /** 1359 * Finds all instances of find on the page and highlights them, 1360 * asynchronously. Notifies any registered {@link FindListener}. 1361 * Successive calls to this will cancel any pending searches. 1362 * 1363 * @param find the string to find. 1364 * @see #setFindListener 1365 */ 1366 public void findAllAsync(String find) { 1367 checkThread(); 1368 mProvider.findAllAsync(find); 1369 } 1370 1371 /** 1372 * Starts an ActionMode for finding text in this WebView. Only works if this 1373 * WebView is attached to the view system. 1374 * 1375 * @param text if non-null, will be the initial text to search for. 1376 * Otherwise, the last String searched for in this WebView will 1377 * be used to start. 1378 * @param showIme if true, show the IME, assuming the user will begin typing. 1379 * If false and text is non-null, perform a find all. 1380 * @return true if the find dialog is shown, false otherwise 1381 * @deprecated This method does not work reliably on all Android versions; 1382 * implementing a custom find dialog using WebView.findAllAsync() 1383 * provides a more robust solution. 1384 */ 1385 @Deprecated 1386 public boolean showFindDialog(String text, boolean showIme) { 1387 checkThread(); 1388 return mProvider.showFindDialog(text, showIme); 1389 } 1390 1391 /** 1392 * Gets the first substring consisting of the address of a physical 1393 * location. Currently, only addresses in the United States are detected, 1394 * and consist of: 1395 * <ul> 1396 * <li>a house number</li> 1397 * <li>a street name</li> 1398 * <li>a street type (Road, Circle, etc), either spelled out or 1399 * abbreviated</li> 1400 * <li>a city name</li> 1401 * <li>a state or territory, either spelled out or two-letter abbr</li> 1402 * <li>an optional 5 digit or 9 digit zip code</li> 1403 * </ul> 1404 * All names must be correctly capitalized, and the zip code, if present, 1405 * must be valid for the state. The street type must be a standard USPS 1406 * spelling or abbreviation. The state or territory must also be spelled 1407 * or abbreviated using USPS standards. The house number may not exceed 1408 * five digits. 1409 * 1410 * @param addr the string to search for addresses 1411 * @return the address, or if no address is found, null 1412 */ 1413 public static String findAddress(String addr) { 1414 return getFactory().getStatics().findAddress(addr); 1415 } 1416 1417 /** 1418 * Clears the highlighting surrounding text matches created by 1419 * {@link #findAllAsync}. 1420 */ 1421 public void clearMatches() { 1422 checkThread(); 1423 mProvider.clearMatches(); 1424 } 1425 1426 /** 1427 * Queries the document to see if it contains any image references. The 1428 * message object will be dispatched with arg1 being set to 1 if images 1429 * were found and 0 if the document does not reference any images. 1430 * 1431 * @param response the message that will be dispatched with the result 1432 */ 1433 public void documentHasImages(Message response) { 1434 checkThread(); 1435 mProvider.documentHasImages(response); 1436 } 1437 1438 /** 1439 * Sets the WebViewClient that will receive various notifications and 1440 * requests. This will replace the current handler. 1441 * 1442 * @param client an implementation of WebViewClient 1443 */ 1444 public void setWebViewClient(WebViewClient client) { 1445 checkThread(); 1446 mProvider.setWebViewClient(client); 1447 } 1448 1449 /** 1450 * Registers the interface to be used when content can not be handled by 1451 * the rendering engine, and should be downloaded instead. This will replace 1452 * the current handler. 1453 * 1454 * @param listener an implementation of DownloadListener 1455 */ 1456 public void setDownloadListener(DownloadListener listener) { 1457 checkThread(); 1458 mProvider.setDownloadListener(listener); 1459 } 1460 1461 /** 1462 * Sets the chrome handler. This is an implementation of WebChromeClient for 1463 * use in handling JavaScript dialogs, favicons, titles, and the progress. 1464 * This will replace the current handler. 1465 * 1466 * @param client an implementation of WebChromeClient 1467 */ 1468 public void setWebChromeClient(WebChromeClient client) { 1469 checkThread(); 1470 mProvider.setWebChromeClient(client); 1471 } 1472 1473 /** 1474 * Sets the Picture listener. This is an interface used to receive 1475 * notifications of a new Picture. 1476 * 1477 * @param listener an implementation of WebView.PictureListener 1478 * @deprecated This method is now obsolete. 1479 */ 1480 @Deprecated 1481 public void setPictureListener(PictureListener listener) { 1482 checkThread(); 1483 mProvider.setPictureListener(listener); 1484 } 1485 1486 /** 1487 * Injects the supplied Java object into this WebView. The object is 1488 * injected into the JavaScript context of the main frame, using the 1489 * supplied name. This allows the Java object's methods to be 1490 * accessed from JavaScript. For applications targeted to API 1491 * level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} 1492 * and above, only public methods that are annotated with 1493 * {@link android.webkit.JavascriptInterface} can be accessed from JavaScript. 1494 * For applications targeted to API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN} or below, 1495 * all public methods (including the inherited ones) can be accessed, see the 1496 * important security note below for implications. 1497 * <p> Note that injected objects will not 1498 * appear in JavaScript until the page is next (re)loaded. For example: 1499 * <pre> 1500 * class JsObject { 1501 * {@literal @}JavascriptInterface 1502 * public String toString() { return "injectedObject"; } 1503 * } 1504 * webView.addJavascriptInterface(new JsObject(), "injectedObject"); 1505 * webView.loadData("<!DOCTYPE html><title></title>", "text/html", null); 1506 * webView.loadUrl("javascript:alert(injectedObject.toString())");</pre> 1507 * <p> 1508 * <strong>IMPORTANT:</strong> 1509 * <ul> 1510 * <li> This method can be used to allow JavaScript to control the host 1511 * application. This is a powerful feature, but also presents a security 1512 * risk for applications targeted to API level 1513 * {@link android.os.Build.VERSION_CODES#JELLY_BEAN} or below, because 1514 * JavaScript could use reflection to access an 1515 * injected object's public fields. Use of this method in a WebView 1516 * containing untrusted content could allow an attacker to manipulate the 1517 * host application in unintended ways, executing Java code with the 1518 * permissions of the host application. Use extreme care when using this 1519 * method in a WebView which could contain untrusted content.</li> 1520 * <li> JavaScript interacts with Java object on a private, background 1521 * thread of this WebView. Care is therefore required to maintain thread 1522 * safety.</li> 1523 * <li> The Java object's fields are not accessible.</li> 1524 * </ul> 1525 * 1526 * @param object the Java object to inject into this WebView's JavaScript 1527 * context. Null values are ignored. 1528 * @param name the name used to expose the object in JavaScript 1529 */ 1530 public void addJavascriptInterface(Object object, String name) { 1531 checkThread(); 1532 mProvider.addJavascriptInterface(object, name); 1533 } 1534 1535 /** 1536 * Removes a previously injected Java object from this WebView. Note that 1537 * the removal will not be reflected in JavaScript until the page is next 1538 * (re)loaded. See {@link #addJavascriptInterface}. 1539 * 1540 * @param name the name used to expose the object in JavaScript 1541 */ 1542 public void removeJavascriptInterface(String name) { 1543 checkThread(); 1544 mProvider.removeJavascriptInterface(name); 1545 } 1546 1547 /** 1548 * Gets the WebSettings object used to control the settings for this 1549 * WebView. 1550 * 1551 * @return a WebSettings object that can be used to control this WebView's 1552 * settings 1553 */ 1554 public WebSettings getSettings() { 1555 checkThread(); 1556 return mProvider.getSettings(); 1557 } 1558 1559 /** 1560 * Gets the list of currently loaded plugins. 1561 * 1562 * @return the list of currently loaded plugins 1563 * @deprecated This was used for Gears, which has been deprecated. 1564 * @hide 1565 */ 1566 @Deprecated 1567 public static synchronized PluginList getPluginList() { 1568 checkThread(); 1569 return new PluginList(); 1570 } 1571 1572 /** 1573 * @deprecated This was used for Gears, which has been deprecated. 1574 * @hide 1575 */ 1576 @Deprecated 1577 public void refreshPlugins(boolean reloadOpenPages) { 1578 checkThread(); 1579 } 1580 1581 /** 1582 * Puts this WebView into text selection mode. Do not rely on this 1583 * functionality; it will be deprecated in the future. 1584 * 1585 * @deprecated This method is now obsolete. 1586 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} 1587 */ 1588 @Deprecated 1589 public void emulateShiftHeld() { 1590 checkThread(); 1591 } 1592 1593 /** 1594 * @deprecated WebView no longer needs to implement 1595 * ViewGroup.OnHierarchyChangeListener. This method does nothing now. 1596 */ 1597 @Override 1598 // Cannot add @hide as this can always be accessed via the interface. 1599 @Deprecated 1600 public void onChildViewAdded(View parent, View child) {} 1601 1602 /** 1603 * @deprecated WebView no longer needs to implement 1604 * ViewGroup.OnHierarchyChangeListener. This method does nothing now. 1605 */ 1606 @Override 1607 // Cannot add @hide as this can always be accessed via the interface. 1608 @Deprecated 1609 public void onChildViewRemoved(View p, View child) {} 1610 1611 /** 1612 * @deprecated WebView should not have implemented 1613 * ViewTreeObserver.OnGlobalFocusChangeListener. This method does nothing now. 1614 */ 1615 @Override 1616 // Cannot add @hide as this can always be accessed via the interface. 1617 @Deprecated 1618 public void onGlobalFocusChanged(View oldFocus, View newFocus) { 1619 } 1620 1621 /** 1622 * @deprecated Only the default case, true, will be supported in a future version. 1623 */ 1624 @Deprecated 1625 public void setMapTrackballToArrowKeys(boolean setMap) { 1626 checkThread(); 1627 mProvider.setMapTrackballToArrowKeys(setMap); 1628 } 1629 1630 1631 public void flingScroll(int vx, int vy) { 1632 checkThread(); 1633 mProvider.flingScroll(vx, vy); 1634 } 1635 1636 /** 1637 * Gets the zoom controls for this WebView, as a separate View. The caller 1638 * is responsible for inserting this View into the layout hierarchy. 1639 * <p/> 1640 * API level {@link android.os.Build.VERSION_CODES#CUPCAKE} introduced 1641 * built-in zoom mechanisms for the WebView, as opposed to these separate 1642 * zoom controls. The built-in mechanisms are preferred and can be enabled 1643 * using {@link WebSettings#setBuiltInZoomControls}. 1644 * 1645 * @deprecated the built-in zoom mechanisms are preferred 1646 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN} 1647 */ 1648 @Deprecated 1649 public View getZoomControls() { 1650 checkThread(); 1651 return mProvider.getZoomControls(); 1652 } 1653 1654 /** 1655 * Gets whether this WebView can be zoomed in. 1656 * 1657 * @return true if this WebView can be zoomed in 1658 * 1659 * @deprecated This method is prone to inaccuracy due to race conditions 1660 * between the web rendering and UI threads; prefer 1661 * {@link WebViewClient#onScaleChanged}. 1662 */ 1663 @Deprecated 1664 public boolean canZoomIn() { 1665 checkThread(); 1666 return mProvider.canZoomIn(); 1667 } 1668 1669 /** 1670 * Gets whether this WebView can be zoomed out. 1671 * 1672 * @return true if this WebView can be zoomed out 1673 * 1674 * @deprecated This method is prone to inaccuracy due to race conditions 1675 * between the web rendering and UI threads; prefer 1676 * {@link WebViewClient#onScaleChanged}. 1677 */ 1678 @Deprecated 1679 public boolean canZoomOut() { 1680 checkThread(); 1681 return mProvider.canZoomOut(); 1682 } 1683 1684 /** 1685 * Performs zoom in in this WebView. 1686 * 1687 * @return true if zoom in succeeds, false if no zoom changes 1688 */ 1689 public boolean zoomIn() { 1690 checkThread(); 1691 return mProvider.zoomIn(); 1692 } 1693 1694 /** 1695 * Performs zoom out in this WebView. 1696 * 1697 * @return true if zoom out succeeds, false if no zoom changes 1698 */ 1699 public boolean zoomOut() { 1700 checkThread(); 1701 return mProvider.zoomOut(); 1702 } 1703 1704 /** 1705 * @deprecated This method is now obsolete. 1706 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} 1707 */ 1708 @Deprecated 1709 public void debugDump() { 1710 checkThread(); 1711 } 1712 1713 /** 1714 * See {@link ViewDebug.HierarchyHandler#dumpViewHierarchyWithProperties(BufferedWriter, int)} 1715 * @hide 1716 */ 1717 @Override 1718 public void dumpViewHierarchyWithProperties(BufferedWriter out, int level) { 1719 mProvider.dumpViewHierarchyWithProperties(out, level); 1720 } 1721 1722 /** 1723 * See {@link ViewDebug.HierarchyHandler#findHierarchyView(String, int)} 1724 * @hide 1725 */ 1726 @Override 1727 public View findHierarchyView(String className, int hashCode) { 1728 return mProvider.findHierarchyView(className, hashCode); 1729 } 1730 1731 //------------------------------------------------------------------------- 1732 // Interface for WebView providers 1733 //------------------------------------------------------------------------- 1734 1735 /** 1736 * Gets the WebViewProvider. Used by providers to obtain the underlying 1737 * implementation, e.g. when the appliction responds to 1738 * WebViewClient.onCreateWindow() request. 1739 * 1740 * @hide WebViewProvider is not public API. 1741 */ 1742 public WebViewProvider getWebViewProvider() { 1743 return mProvider; 1744 } 1745 1746 /** 1747 * Callback interface, allows the provider implementation to access non-public methods 1748 * and fields, and make super-class calls in this WebView instance. 1749 * @hide Only for use by WebViewProvider implementations 1750 */ 1751 public class PrivateAccess { 1752 // ---- Access to super-class methods ---- 1753 public int super_getScrollBarStyle() { 1754 return WebView.super.getScrollBarStyle(); 1755 } 1756 1757 public void super_scrollTo(int scrollX, int scrollY) { 1758 WebView.super.scrollTo(scrollX, scrollY); 1759 } 1760 1761 public void super_computeScroll() { 1762 WebView.super.computeScroll(); 1763 } 1764 1765 public boolean super_onHoverEvent(MotionEvent event) { 1766 return WebView.super.onHoverEvent(event); 1767 } 1768 1769 public boolean super_performAccessibilityAction(int action, Bundle arguments) { 1770 return WebView.super.performAccessibilityAction(action, arguments); 1771 } 1772 1773 public boolean super_performLongClick() { 1774 return WebView.super.performLongClick(); 1775 } 1776 1777 public boolean super_setFrame(int left, int top, int right, int bottom) { 1778 return WebView.super.setFrame(left, top, right, bottom); 1779 } 1780 1781 public boolean super_dispatchKeyEvent(KeyEvent event) { 1782 return WebView.super.dispatchKeyEvent(event); 1783 } 1784 1785 public boolean super_onGenericMotionEvent(MotionEvent event) { 1786 return WebView.super.onGenericMotionEvent(event); 1787 } 1788 1789 public boolean super_requestFocus(int direction, Rect previouslyFocusedRect) { 1790 return WebView.super.requestFocus(direction, previouslyFocusedRect); 1791 } 1792 1793 public void super_setLayoutParams(ViewGroup.LayoutParams params) { 1794 WebView.super.setLayoutParams(params); 1795 } 1796 1797 // ---- Access to non-public methods ---- 1798 public void overScrollBy(int deltaX, int deltaY, 1799 int scrollX, int scrollY, 1800 int scrollRangeX, int scrollRangeY, 1801 int maxOverScrollX, int maxOverScrollY, 1802 boolean isTouchEvent) { 1803 WebView.this.overScrollBy(deltaX, deltaY, scrollX, scrollY, scrollRangeX, scrollRangeY, 1804 maxOverScrollX, maxOverScrollY, isTouchEvent); 1805 } 1806 1807 public void awakenScrollBars(int duration) { 1808 WebView.this.awakenScrollBars(duration); 1809 } 1810 1811 public void awakenScrollBars(int duration, boolean invalidate) { 1812 WebView.this.awakenScrollBars(duration, invalidate); 1813 } 1814 1815 public float getVerticalScrollFactor() { 1816 return WebView.this.getVerticalScrollFactor(); 1817 } 1818 1819 public float getHorizontalScrollFactor() { 1820 return WebView.this.getHorizontalScrollFactor(); 1821 } 1822 1823 public void setMeasuredDimension(int measuredWidth, int measuredHeight) { 1824 WebView.this.setMeasuredDimension(measuredWidth, measuredHeight); 1825 } 1826 1827 public void onScrollChanged(int l, int t, int oldl, int oldt) { 1828 WebView.this.onScrollChanged(l, t, oldl, oldt); 1829 } 1830 1831 public int getHorizontalScrollbarHeight() { 1832 return WebView.this.getHorizontalScrollbarHeight(); 1833 } 1834 1835 // ---- Access to (non-public) fields ---- 1836 /** Raw setter for the scroll X value, without invoking onScrollChanged handlers etc. */ 1837 public void setScrollXRaw(int scrollX) { 1838 WebView.this.mScrollX = scrollX; 1839 } 1840 1841 /** Raw setter for the scroll Y value, without invoking onScrollChanged handlers etc. */ 1842 public void setScrollYRaw(int scrollY) { 1843 WebView.this.mScrollY = scrollY; 1844 } 1845 1846 } 1847 1848 //------------------------------------------------------------------------- 1849 // Package-private internal stuff 1850 //------------------------------------------------------------------------- 1851 1852 // Only used by android.webkit.FindActionModeCallback. 1853 void setFindDialogFindListener(FindListener listener) { 1854 checkThread(); 1855 setupFindListenerIfNeeded(); 1856 mFindListener.mFindDialogFindListener = listener; 1857 } 1858 1859 // Only used by android.webkit.FindActionModeCallback. 1860 void notifyFindDialogDismissed() { 1861 checkThread(); 1862 mProvider.notifyFindDialogDismissed(); 1863 } 1864 1865 //------------------------------------------------------------------------- 1866 // Private internal stuff 1867 //------------------------------------------------------------------------- 1868 1869 private WebViewProvider mProvider; 1870 1871 /** 1872 * In addition to the FindListener that the user may set via the WebView.setFindListener 1873 * API, FindActionModeCallback will register it's own FindListener. We keep them separate 1874 * via this class so that that the two FindListeners can potentially exist at once. 1875 */ 1876 private class FindListenerDistributor implements FindListener { 1877 private FindListener mFindDialogFindListener; 1878 private FindListener mUserFindListener; 1879 1880 @Override 1881 public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, 1882 boolean isDoneCounting) { 1883 if (mFindDialogFindListener != null) { 1884 mFindDialogFindListener.onFindResultReceived(activeMatchOrdinal, numberOfMatches, 1885 isDoneCounting); 1886 } 1887 1888 if (mUserFindListener != null) { 1889 mUserFindListener.onFindResultReceived(activeMatchOrdinal, numberOfMatches, 1890 isDoneCounting); 1891 } 1892 } 1893 } 1894 private FindListenerDistributor mFindListener; 1895 1896 private void setupFindListenerIfNeeded() { 1897 if (mFindListener == null) { 1898 mFindListener = new FindListenerDistributor(); 1899 mProvider.setFindListener(mFindListener); 1900 } 1901 } 1902 1903 private void ensureProviderCreated() { 1904 checkThread(); 1905 if (mProvider == null) { 1906 // As this can get called during the base class constructor chain, pass the minimum 1907 // number of dependencies here; the rest are deferred to init(). 1908 mProvider = getFactory().createWebView(this, new PrivateAccess()); 1909 } 1910 } 1911 1912 private static synchronized WebViewFactoryProvider getFactory() { 1913 return WebViewFactory.getProvider(); 1914 } 1915 1916 private static void checkThread() { 1917 if (Looper.myLooper() != Looper.getMainLooper()) { 1918 Throwable throwable = new Throwable( 1919 "Warning: A WebView method was called on thread '" + 1920 Thread.currentThread().getName() + "'. " + 1921 "All WebView methods must be called on the UI thread. " + 1922 "Future versions of WebView may not support use on other threads."); 1923 Log.w(LOGTAG, Log.getStackTraceString(throwable)); 1924 StrictMode.onWebViewMethodCalledOnWrongThread(throwable); 1925 1926 if (sEnforceThreadChecking) { 1927 throw new RuntimeException(throwable); 1928 } 1929 } 1930 } 1931 1932 //------------------------------------------------------------------------- 1933 // Override View methods 1934 //------------------------------------------------------------------------- 1935 1936 // TODO: Add a test that enumerates all methods in ViewDelegte & ScrollDelegate, and ensures 1937 // there's a corresponding override (or better, caller) for each of them in here. 1938 1939 @Override 1940 protected void onAttachedToWindow() { 1941 super.onAttachedToWindow(); 1942 mProvider.getViewDelegate().onAttachedToWindow(); 1943 } 1944 1945 @Override 1946 protected void onDetachedFromWindow() { 1947 mProvider.getViewDelegate().onDetachedFromWindow(); 1948 super.onDetachedFromWindow(); 1949 } 1950 1951 @Override 1952 public void setLayoutParams(ViewGroup.LayoutParams params) { 1953 mProvider.getViewDelegate().setLayoutParams(params); 1954 } 1955 1956 @Override 1957 public void setOverScrollMode(int mode) { 1958 super.setOverScrollMode(mode); 1959 // This method may be called in the constructor chain, before the WebView provider is 1960 // created. 1961 ensureProviderCreated(); 1962 mProvider.getViewDelegate().setOverScrollMode(mode); 1963 } 1964 1965 @Override 1966 public void setScrollBarStyle(int style) { 1967 mProvider.getViewDelegate().setScrollBarStyle(style); 1968 super.setScrollBarStyle(style); 1969 } 1970 1971 @Override 1972 protected int computeHorizontalScrollRange() { 1973 return mProvider.getScrollDelegate().computeHorizontalScrollRange(); 1974 } 1975 1976 @Override 1977 protected int computeHorizontalScrollOffset() { 1978 return mProvider.getScrollDelegate().computeHorizontalScrollOffset(); 1979 } 1980 1981 @Override 1982 protected int computeVerticalScrollRange() { 1983 return mProvider.getScrollDelegate().computeVerticalScrollRange(); 1984 } 1985 1986 @Override 1987 protected int computeVerticalScrollOffset() { 1988 return mProvider.getScrollDelegate().computeVerticalScrollOffset(); 1989 } 1990 1991 @Override 1992 protected int computeVerticalScrollExtent() { 1993 return mProvider.getScrollDelegate().computeVerticalScrollExtent(); 1994 } 1995 1996 @Override 1997 public void computeScroll() { 1998 mProvider.getScrollDelegate().computeScroll(); 1999 } 2000 2001 @Override 2002 public boolean onHoverEvent(MotionEvent event) { 2003 return mProvider.getViewDelegate().onHoverEvent(event); 2004 } 2005 2006 @Override 2007 public boolean onTouchEvent(MotionEvent event) { 2008 return mProvider.getViewDelegate().onTouchEvent(event); 2009 } 2010 2011 @Override 2012 public boolean onGenericMotionEvent(MotionEvent event) { 2013 return mProvider.getViewDelegate().onGenericMotionEvent(event); 2014 } 2015 2016 @Override 2017 public boolean onTrackballEvent(MotionEvent event) { 2018 return mProvider.getViewDelegate().onTrackballEvent(event); 2019 } 2020 2021 @Override 2022 public boolean onKeyDown(int keyCode, KeyEvent event) { 2023 return mProvider.getViewDelegate().onKeyDown(keyCode, event); 2024 } 2025 2026 @Override 2027 public boolean onKeyUp(int keyCode, KeyEvent event) { 2028 return mProvider.getViewDelegate().onKeyUp(keyCode, event); 2029 } 2030 2031 @Override 2032 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 2033 return mProvider.getViewDelegate().onKeyMultiple(keyCode, repeatCount, event); 2034 } 2035 2036 /* 2037 TODO: These are not currently implemented in WebViewClassic, but it seems inconsistent not 2038 to be delegating them too. 2039 2040 @Override 2041 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 2042 return mProvider.getViewDelegate().onKeyPreIme(keyCode, event); 2043 } 2044 @Override 2045 public boolean onKeyLongPress(int keyCode, KeyEvent event) { 2046 return mProvider.getViewDelegate().onKeyLongPress(keyCode, event); 2047 } 2048 @Override 2049 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 2050 return mProvider.getViewDelegate().onKeyShortcut(keyCode, event); 2051 } 2052 */ 2053 2054 @Deprecated 2055 @Override 2056 public boolean shouldDelayChildPressedState() { 2057 return mProvider.getViewDelegate().shouldDelayChildPressedState(); 2058 } 2059 2060 @Override 2061 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 2062 super.onInitializeAccessibilityNodeInfo(info); 2063 info.setClassName(WebView.class.getName()); 2064 mProvider.getViewDelegate().onInitializeAccessibilityNodeInfo(info); 2065 } 2066 2067 @Override 2068 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 2069 super.onInitializeAccessibilityEvent(event); 2070 event.setClassName(WebView.class.getName()); 2071 mProvider.getViewDelegate().onInitializeAccessibilityEvent(event); 2072 } 2073 2074 @Override 2075 public boolean performAccessibilityAction(int action, Bundle arguments) { 2076 return mProvider.getViewDelegate().performAccessibilityAction(action, arguments); 2077 } 2078 2079 /** @hide */ 2080 @Override 2081 protected void onDrawVerticalScrollBar(Canvas canvas, Drawable scrollBar, 2082 int l, int t, int r, int b) { 2083 mProvider.getViewDelegate().onDrawVerticalScrollBar(canvas, scrollBar, l, t, r, b); 2084 } 2085 2086 @Override 2087 protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 2088 mProvider.getViewDelegate().onOverScrolled(scrollX, scrollY, clampedX, clampedY); 2089 } 2090 2091 @Override 2092 protected void onWindowVisibilityChanged(int visibility) { 2093 super.onWindowVisibilityChanged(visibility); 2094 mProvider.getViewDelegate().onWindowVisibilityChanged(visibility); 2095 } 2096 2097 @Override 2098 protected void onDraw(Canvas canvas) { 2099 mProvider.getViewDelegate().onDraw(canvas); 2100 } 2101 2102 @Override 2103 public boolean performLongClick() { 2104 return mProvider.getViewDelegate().performLongClick(); 2105 } 2106 2107 @Override 2108 protected void onConfigurationChanged(Configuration newConfig) { 2109 mProvider.getViewDelegate().onConfigurationChanged(newConfig); 2110 } 2111 2112 @Override 2113 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 2114 return mProvider.getViewDelegate().onCreateInputConnection(outAttrs); 2115 } 2116 2117 @Override 2118 protected void onVisibilityChanged(View changedView, int visibility) { 2119 super.onVisibilityChanged(changedView, visibility); 2120 // This method may be called in the constructor chain, before the WebView provider is 2121 // created. 2122 ensureProviderCreated(); 2123 mProvider.getViewDelegate().onVisibilityChanged(changedView, visibility); 2124 } 2125 2126 @Override 2127 public void onWindowFocusChanged(boolean hasWindowFocus) { 2128 mProvider.getViewDelegate().onWindowFocusChanged(hasWindowFocus); 2129 super.onWindowFocusChanged(hasWindowFocus); 2130 } 2131 2132 @Override 2133 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 2134 mProvider.getViewDelegate().onFocusChanged(focused, direction, previouslyFocusedRect); 2135 super.onFocusChanged(focused, direction, previouslyFocusedRect); 2136 } 2137 2138 /** @hide */ 2139 @Override 2140 protected boolean setFrame(int left, int top, int right, int bottom) { 2141 return mProvider.getViewDelegate().setFrame(left, top, right, bottom); 2142 } 2143 2144 @Override 2145 protected void onSizeChanged(int w, int h, int ow, int oh) { 2146 super.onSizeChanged(w, h, ow, oh); 2147 mProvider.getViewDelegate().onSizeChanged(w, h, ow, oh); 2148 } 2149 2150 @Override 2151 protected void onScrollChanged(int l, int t, int oldl, int oldt) { 2152 super.onScrollChanged(l, t, oldl, oldt); 2153 mProvider.getViewDelegate().onScrollChanged(l, t, oldl, oldt); 2154 } 2155 2156 @Override 2157 public boolean dispatchKeyEvent(KeyEvent event) { 2158 return mProvider.getViewDelegate().dispatchKeyEvent(event); 2159 } 2160 2161 @Override 2162 public boolean requestFocus(int direction, Rect previouslyFocusedRect) { 2163 return mProvider.getViewDelegate().requestFocus(direction, previouslyFocusedRect); 2164 } 2165 2166 @Deprecated 2167 @Override 2168 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 2169 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 2170 mProvider.getViewDelegate().onMeasure(widthMeasureSpec, heightMeasureSpec); 2171 } 2172 2173 @Override 2174 public boolean requestChildRectangleOnScreen(View child, Rect rect, boolean immediate) { 2175 return mProvider.getViewDelegate().requestChildRectangleOnScreen(child, rect, immediate); 2176 } 2177 2178 @Override 2179 public void setBackgroundColor(int color) { 2180 mProvider.getViewDelegate().setBackgroundColor(color); 2181 } 2182 2183 @Override 2184 public void setLayerType(int layerType, Paint paint) { 2185 super.setLayerType(layerType, paint); 2186 mProvider.getViewDelegate().setLayerType(layerType, paint); 2187 } 2188 2189 @Override 2190 protected void dispatchDraw(Canvas canvas) { 2191 mProvider.getViewDelegate().preDispatchDraw(canvas); 2192 super.dispatchDraw(canvas); 2193 } 2194 } 2195