WebView.java revision 75bea2e8d35044233ba892bedf102ed08406d653
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 17package android.webkit; 18 19import android.annotation.Widget; 20import android.content.Context; 21import android.content.res.Configuration; 22import android.graphics.Bitmap; 23import android.graphics.Canvas; 24import android.graphics.Paint; 25import android.graphics.Picture; 26import android.graphics.Rect; 27import android.graphics.drawable.Drawable; 28import android.net.http.SslCertificate; 29import android.os.Bundle; 30import android.os.Looper; 31import android.os.Message; 32import android.os.StrictMode; 33import android.util.AttributeSet; 34import android.util.Log; 35import android.view.KeyEvent; 36import android.view.MotionEvent; 37import android.view.View; 38import android.view.ViewDebug; 39import android.view.ViewGroup; 40import android.view.ViewTreeObserver; 41import android.view.accessibility.AccessibilityEvent; 42import android.view.accessibility.AccessibilityNodeInfo; 43import android.view.inputmethod.EditorInfo; 44import android.view.inputmethod.InputConnection; 45import android.widget.AbsoluteLayout; 46 47import java.io.BufferedWriter; 48import java.io.File; 49import java.util.Map; 50 51/** 52 * <p>A View that displays web pages. This class is the basis upon which you 53 * can roll your own web browser or simply display some online content within your Activity. 54 * It uses the WebKit rendering engine to display 55 * web pages and includes methods to navigate forward and backward 56 * through a history, zoom in and out, perform text searches and more.</p> 57 * <p>To enable the built-in zoom, set 58 * {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)} 59 * (introduced in API level {@link android.os.Build.VERSION_CODES#CUPCAKE}). 60 * <p>Note that, in order for your Activity to access the Internet and load web pages 61 * in a WebView, you must add the {@code INTERNET} permissions to your 62 * Android Manifest file:</p> 63 * <pre><uses-permission android:name="android.permission.INTERNET" /></pre> 64 * 65 * <p>This must be a child of the <a 66 * href="{@docRoot}guide/topics/manifest/manifest-element.html">{@code <manifest>}</a> 67 * element.</p> 68 * 69 * <p>For more information, read 70 * <a href="{@docRoot}guide/webapps/webview.html">Building Web Apps in WebView</a>.</p> 71 * 72 * <h3>Basic usage</h3> 73 * 74 * <p>By default, a WebView provides no browser-like widgets, does not 75 * enable JavaScript and web page errors are ignored. If your goal is only 76 * to display some HTML as a part of your UI, this is probably fine; 77 * the user won't need to interact with the web page beyond reading 78 * it, and the web page won't need to interact with the user. If you 79 * actually want a full-blown web browser, then you probably want to 80 * invoke the Browser application with a URL Intent rather than show it 81 * with a WebView. For example: 82 * <pre> 83 * Uri uri = Uri.parse("http://www.example.com"); 84 * Intent intent = new Intent(Intent.ACTION_VIEW, uri); 85 * startActivity(intent); 86 * </pre> 87 * <p>See {@link android.content.Intent} for more information.</p> 88 * 89 * <p>To provide a WebView in your own Activity, include a {@code <WebView>} in your layout, 90 * or set the entire Activity window as a WebView during {@link 91 * android.app.Activity#onCreate(Bundle) onCreate()}:</p> 92 * <pre class="prettyprint"> 93 * WebView webview = new WebView(this); 94 * setContentView(webview); 95 * </pre> 96 * 97 * <p>Then load the desired web page:</p> 98 * <pre> 99 * // Simplest usage: note that an exception will NOT be thrown 100 * // if there is an error loading this page (see below). 101 * webview.loadUrl("http://slashdot.org/"); 102 * 103 * // OR, you can also load from an HTML string: 104 * String summary = "<html><body>You scored <b>192</b> points.</body></html>"; 105 * webview.loadData(summary, "text/html", null); 106 * // ... although note that there are restrictions on what this HTML can do. 107 * // See the JavaDocs for {@link #loadData(String,String,String) loadData()} and {@link 108 * #loadDataWithBaseURL(String,String,String,String,String) loadDataWithBaseURL()} for more info. 109 * </pre> 110 * 111 * <p>A WebView has several customization points where you can add your 112 * own behavior. These are:</p> 113 * 114 * <ul> 115 * <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass. 116 * This class is called when something that might impact a 117 * browser UI happens, for instance, progress updates and 118 * JavaScript alerts are sent here (see <a 119 * href="{@docRoot}guide/developing/debug-tasks.html#DebuggingWebPages">Debugging Tasks</a>). 120 * </li> 121 * <li>Creating and setting a {@link android.webkit.WebViewClient} subclass. 122 * It will be called when things happen that impact the 123 * rendering of the content, eg, errors or form submissions. You 124 * can also intercept URL loading here (via {@link 125 * android.webkit.WebViewClient#shouldOverrideUrlLoading(WebView,String) 126 * shouldOverrideUrlLoading()}).</li> 127 * <li>Modifying the {@link android.webkit.WebSettings}, such as 128 * enabling JavaScript with {@link android.webkit.WebSettings#setJavaScriptEnabled(boolean) 129 * setJavaScriptEnabled()}. </li> 130 * <li>Injecting Java objects into the WebView using the 131 * {@link android.webkit.WebView#addJavascriptInterface} method. This 132 * method allows you to inject Java objects into a page's JavaScript 133 * context, so that they can be accessed by JavaScript in the page.</li> 134 * </ul> 135 * 136 * <p>Here's a more complicated example, showing error handling, 137 * settings, and progress notification:</p> 138 * 139 * <pre class="prettyprint"> 140 * // Let's display the progress in the activity title bar, like the 141 * // browser app does. 142 * getWindow().requestFeature(Window.FEATURE_PROGRESS); 143 * 144 * webview.getSettings().setJavaScriptEnabled(true); 145 * 146 * final Activity activity = this; 147 * webview.setWebChromeClient(new WebChromeClient() { 148 * public void onProgressChanged(WebView view, int progress) { 149 * // Activities and WebViews measure progress with different scales. 150 * // The progress meter will automatically disappear when we reach 100% 151 * activity.setProgress(progress * 1000); 152 * } 153 * }); 154 * webview.setWebViewClient(new WebViewClient() { 155 * public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { 156 * Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); 157 * } 158 * }); 159 * 160 * webview.loadUrl("http://slashdot.org/"); 161 * </pre> 162 * 163 * <h3>Cookie and window management</h3> 164 * 165 * <p>For obvious security reasons, your application has its own 166 * cache, cookie store etc.—it does not share the Browser 167 * application's data. Cookies are managed on a separate thread, so 168 * operations like index building don't block the UI 169 * thread. Follow the instructions in {@link android.webkit.CookieSyncManager} 170 * if you want to use cookies in your application. 171 * </p> 172 * 173 * <p>By default, requests by the HTML to open new windows are 174 * ignored. This is true whether they be opened by JavaScript or by 175 * the target attribute on a link. You can customize your 176 * {@link WebChromeClient} to provide your own behaviour for opening multiple windows, 177 * and render them in whatever manner you want.</p> 178 * 179 * <p>The standard behavior for an Activity is to be destroyed and 180 * recreated when the device orientation or any other configuration changes. This will cause 181 * the WebView to reload the current page. If you don't want that, you 182 * can set your Activity to handle the {@code orientation} and {@code keyboardHidden} 183 * changes, and then just leave the WebView alone. It'll automatically 184 * re-orient itself as appropriate. Read <a 185 * href="{@docRoot}guide/topics/resources/runtime-changes.html">Handling Runtime Changes</a> for 186 * more information about how to handle configuration changes during runtime.</p> 187 * 188 * 189 * <h3>Building web pages to support different screen densities</h3> 190 * 191 * <p>The screen density of a device is based on the screen resolution. A screen with low density 192 * has fewer available pixels per inch, where a screen with high density 193 * has more — sometimes significantly more — pixels per inch. The density of a 194 * screen is important because, other things being equal, a UI element (such as a button) whose 195 * height and width are defined in terms of screen pixels will appear larger on the lower density 196 * screen and smaller on the higher density screen. 197 * For simplicity, Android collapses all actual screen densities into three generalized densities: 198 * high, medium, and low.</p> 199 * <p>By default, WebView scales a web page so that it is drawn at a size that matches the default 200 * appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen 201 * (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels 202 * are bigger). 203 * Starting with API level {@link android.os.Build.VERSION_CODES#ECLAIR}, WebView supports DOM, CSS, 204 * and meta tag features to help you (as a web developer) target screens with different screen 205 * densities.</p> 206 * <p>Here's a summary of the features you can use to handle different screen densities:</p> 207 * <ul> 208 * <li>The {@code window.devicePixelRatio} DOM property. The value of this property specifies the 209 * default scaling factor used for the current device. For example, if the value of {@code 210 * window.devicePixelRatio} is "1.0", then the device is considered a medium density (mdpi) device 211 * and default scaling is not applied to the web page; if the value is "1.5", then the device is 212 * considered a high density device (hdpi) and the page content is scaled 1.5x; if the 213 * value is "0.75", then the device is considered a low density device (ldpi) and the content is 214 * scaled 0.75x. However, if you specify the {@code "target-densitydpi"} meta property 215 * (discussed below), then you can stop this default scaling behavior.</li> 216 * <li>The {@code -webkit-device-pixel-ratio} CSS media query. Use this to specify the screen 217 * densities for which this style sheet is to be used. The corresponding value should be either 218 * "0.75", "1", or "1.5", to indicate that the styles are for devices with low density, medium 219 * density, or high density screens, respectively. For example: 220 * <pre> 221 * <link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /></pre> 222 * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5, 223 * which is the high density pixel ratio.</p> 224 * </li> 225 * <li>The {@code target-densitydpi} property for the {@code viewport} meta tag. You can use 226 * this to specify the target density for which the web page is designed, using the following 227 * values: 228 * <ul> 229 * <li>{@code device-dpi} - Use the device's native dpi as the target dpi. Default scaling never 230 * occurs.</li> 231 * <li>{@code high-dpi} - Use hdpi as the target dpi. Medium and low density screens scale down 232 * as appropriate.</li> 233 * <li>{@code medium-dpi} - Use mdpi as the target dpi. High density screens scale up and 234 * low density screens scale down. This is also the default behavior.</li> 235 * <li>{@code low-dpi} - Use ldpi as the target dpi. Medium and high density screens scale up 236 * as appropriate.</li> 237 * <li><em>{@code <value>}</em> - Specify a dpi value to use as the target dpi (accepted 238 * values are 70-400).</li> 239 * </ul> 240 * <p>Here's an example meta tag to specify the target density:</p> 241 * <pre><meta name="viewport" content="target-densitydpi=device-dpi" /></pre></li> 242 * </ul> 243 * <p>If you want to modify your web page for different densities, by using the {@code 244 * -webkit-device-pixel-ratio} CSS media query and/or the {@code 245 * window.devicePixelRatio} DOM property, then you should set the {@code target-densitydpi} meta 246 * property to {@code device-dpi}. This stops Android from performing scaling in your web page and 247 * allows you to make the necessary adjustments for each density via CSS and JavaScript.</p> 248 * 249 * <h3>HTML5 Video support</h3> 250 * 251 * <p>In order to support inline HTML5 video in your application, you need to have hardware 252 * acceleration turned on, and set a {@link android.webkit.WebChromeClient}. For full screen support, 253 * implementations of {@link WebChromeClient#onShowCustomView(View, WebChromeClient.CustomViewCallback)} 254 * and {@link WebChromeClient#onHideCustomView()} are required, 255 * {@link WebChromeClient#getVideoLoadingProgressView()} is optional. 256 * </p> 257 */ 258// Implementation notes. 259// The WebView is a thin API class that delegates its public API to a backend WebViewProvider 260// class instance. WebView extends {@link AbsoluteLayout} for backward compatibility reasons. 261// Methods are delegated to the provider implementation: all public API methods introduced in this 262// file are fully delegated, whereas public and protected methods from the View base classes are 263// only delegated where a specific need exists for them to do so. 264@Widget 265public class WebView extends AbsoluteLayout 266 implements ViewTreeObserver.OnGlobalFocusChangeListener, 267 ViewGroup.OnHierarchyChangeListener, ViewDebug.HierarchyHandler { 268 269 private static final String LOGTAG = "webview_proxy"; 270 271 /** 272 * Transportation object for returning WebView across thread boundaries. 273 */ 274 public class WebViewTransport { 275 private WebView mWebview; 276 277 /** 278 * Sets the WebView to the transportation object. 279 * 280 * @param webview the WebView to transport 281 */ 282 public synchronized void setWebView(WebView webview) { 283 mWebview = webview; 284 } 285 286 /** 287 * Gets the WebView object. 288 * 289 * @return the transported WebView object 290 */ 291 public synchronized WebView getWebView() { 292 return mWebview; 293 } 294 } 295 296 /** 297 * URI scheme for telephone number. 298 */ 299 public static final String SCHEME_TEL = "tel:"; 300 /** 301 * URI scheme for email address. 302 */ 303 public static final String SCHEME_MAILTO = "mailto:"; 304 /** 305 * URI scheme for map address. 306 */ 307 public static final String SCHEME_GEO = "geo:0,0?q="; 308 309 /** 310 * Interface to listen for find results. 311 */ 312 public interface FindListener { 313 /** 314 * Notifies the listener about progress made by a find operation. 315 * 316 * @param numberOfMatches how many matches have been found 317 * @param activeMatchOrdinal the zero-based ordinal of the currently selected match 318 * @param isDoneCounting whether the find operation has actually completed. The listener 319 * may be notified multiple times while the 320 * operation is underway, and the numberOfMatches 321 * value should not be considered final unless 322 * isDoneCounting is true. 323 */ 324 public void onFindResultReceived(int numberOfMatches, int activeMatchOrdinal, 325 boolean isDoneCounting); 326 } 327 328 /** 329 * Interface to listen for new pictures as they change. 330 * 331 * @deprecated This interface is now obsolete. 332 */ 333 @Deprecated 334 public interface PictureListener { 335 /** 336 * Used to provide notification that the WebView's picture has changed. 337 * See {@link WebView#capturePicture} for details of the picture. 338 * 339 * @param view the WebView that owns the picture 340 * @param picture the new picture 341 * @deprecated Deprecated due to internal changes. 342 */ 343 @Deprecated 344 public void onNewPicture(WebView view, Picture picture); 345 } 346 347 public static class HitTestResult { 348 /** 349 * Default HitTestResult, where the target is unknown. 350 */ 351 public static final int UNKNOWN_TYPE = 0; 352 /** 353 * @deprecated This type is no longer used. 354 */ 355 @Deprecated 356 public static final int ANCHOR_TYPE = 1; 357 /** 358 * HitTestResult for hitting a phone number. 359 */ 360 public static final int PHONE_TYPE = 2; 361 /** 362 * HitTestResult for hitting a map address. 363 */ 364 public static final int GEO_TYPE = 3; 365 /** 366 * HitTestResult for hitting an email address. 367 */ 368 public static final int EMAIL_TYPE = 4; 369 /** 370 * HitTestResult for hitting an HTML::img tag. 371 */ 372 public static final int IMAGE_TYPE = 5; 373 /** 374 * @deprecated This type is no longer used. 375 */ 376 @Deprecated 377 public static final int IMAGE_ANCHOR_TYPE = 6; 378 /** 379 * HitTestResult for hitting a HTML::a tag with src=http. 380 */ 381 public static final int SRC_ANCHOR_TYPE = 7; 382 /** 383 * HitTestResult for hitting a HTML::a tag with src=http + HTML::img. 384 */ 385 public static final int SRC_IMAGE_ANCHOR_TYPE = 8; 386 /** 387 * HitTestResult for hitting an edit text area. 388 */ 389 public static final int EDIT_TEXT_TYPE = 9; 390 391 private int mType; 392 private String mExtra; 393 394 /** 395 * @hide Only for use by WebViewProvider implementations 396 */ 397 public HitTestResult() { 398 mType = UNKNOWN_TYPE; 399 } 400 401 /** 402 * @hide Only for use by WebViewProvider implementations 403 */ 404 public void setType(int type) { 405 mType = type; 406 } 407 408 /** 409 * @hide Only for use by WebViewProvider implementations 410 */ 411 public void setExtra(String extra) { 412 mExtra = extra; 413 } 414 415 /** 416 * Gets the type of the hit test result. See the XXX_TYPE constants 417 * defined in this class. 418 * 419 * @return the type of the hit test result 420 */ 421 public int getType() { 422 return mType; 423 } 424 425 /** 426 * Gets additional type-dependant information about the result. See 427 * {@link WebView#getHitTestResult()} for details. May either be null 428 * or contain extra information about this result. 429 * 430 * @return additional type-dependant information about the result 431 */ 432 public String getExtra() { 433 return mExtra; 434 } 435 } 436 437 /** 438 * Constructs a new WebView with a Context object. 439 * 440 * @param context a Context object used to access application assets 441 */ 442 public WebView(Context context) { 443 this(context, null); 444 } 445 446 /** 447 * Constructs a new WebView with layout parameters. 448 * 449 * @param context a Context object used to access application assets 450 * @param attrs an AttributeSet passed to our parent 451 */ 452 public WebView(Context context, AttributeSet attrs) { 453 this(context, attrs, com.android.internal.R.attr.webViewStyle); 454 } 455 456 /** 457 * Constructs a new WebView with layout parameters and a default style. 458 * 459 * @param context a Context object used to access application assets 460 * @param attrs an AttributeSet passed to our parent 461 * @param defStyle the default style resource ID 462 */ 463 public WebView(Context context, AttributeSet attrs, int defStyle) { 464 this(context, attrs, defStyle, false); 465 } 466 467 /** 468 * Constructs a new WebView with layout parameters and a default style. 469 * 470 * @param context a Context object used to access application assets 471 * @param attrs an AttributeSet passed to our parent 472 * @param defStyle the default style resource ID 473 * @param privateBrowsing whether this WebView will be initialized in 474 * private mode 475 */ 476 public WebView(Context context, AttributeSet attrs, int defStyle, 477 boolean privateBrowsing) { 478 this(context, attrs, defStyle, null, privateBrowsing); 479 } 480 481 /** 482 * Constructs a new WebView with layout parameters, a default style and a set 483 * of custom Javscript interfaces to be added to this WebView at initialization 484 * time. This guarantees that these interfaces will be available when the JS 485 * context is initialized. 486 * 487 * @param context a Context object used to access application assets 488 * @param attrs an AttributeSet passed to our parent 489 * @param defStyle the default style resource ID 490 * @param javaScriptInterfaces a Map of interface names, as keys, and 491 * object implementing those interfaces, as 492 * values 493 * @param privateBrowsing whether this WebView will be initialized in 494 * private mode 495 * @hide This is used internally by dumprendertree, as it requires the javaScript interfaces to 496 * be added synchronously, before a subsequent loadUrl call takes effect. 497 */ 498 @SuppressWarnings("deprecation") // for super() call into deprecated base class constructor. 499 protected WebView(Context context, AttributeSet attrs, int defStyle, 500 Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { 501 super(context, attrs, defStyle); 502 if (context == null) { 503 throw new IllegalArgumentException("Invalid context argument"); 504 } 505 checkThread(); 506 507 ensureProviderCreated(); 508 mProvider.init(javaScriptInterfaces, privateBrowsing); 509 } 510 511 /** 512 * Specifies whether the horizontal scrollbar has overlay style. 513 * 514 * @param overlay true if horizontal scrollbar should have overlay style 515 */ 516 public void setHorizontalScrollbarOverlay(boolean overlay) { 517 checkThread(); 518 mProvider.setHorizontalScrollbarOverlay(overlay); 519 } 520 521 /** 522 * Specifies whether the vertical scrollbar has overlay style. 523 * 524 * @param overlay true if vertical scrollbar should have overlay style 525 */ 526 public void setVerticalScrollbarOverlay(boolean overlay) { 527 checkThread(); 528 mProvider.setVerticalScrollbarOverlay(overlay); 529 } 530 531 /** 532 * Gets whether horizontal scrollbar has overlay style. 533 * 534 * @return true if horizontal scrollbar has overlay style 535 */ 536 public boolean overlayHorizontalScrollbar() { 537 checkThread(); 538 return mProvider.overlayHorizontalScrollbar(); 539 } 540 541 /** 542 * Gets whether vertical scrollbar has overlay style. 543 * 544 * @return true if vertical scrollbar has overlay style 545 */ 546 public boolean overlayVerticalScrollbar() { 547 checkThread(); 548 return mProvider.overlayVerticalScrollbar(); 549 } 550 551 /** 552 * Gets the visible height (in pixels) of the embedded title bar (if any). 553 * 554 * @deprecated This method is now obsolete. 555 */ 556 public int getVisibleTitleHeight() { 557 checkThread(); 558 return mProvider.getVisibleTitleHeight(); 559 } 560 561 /** 562 * Gets the SSL certificate for the main top-level page or null if there is 563 * no certificate (the site is not secure). 564 * 565 * @return the SSL certificate for the main top-level page 566 */ 567 public SslCertificate getCertificate() { 568 checkThread(); 569 return mProvider.getCertificate(); 570 } 571 572 /** 573 * Sets the SSL certificate for the main top-level page. 574 */ 575 public void setCertificate(SslCertificate certificate) { 576 checkThread(); 577 mProvider.setCertificate(certificate); 578 } 579 580 //------------------------------------------------------------------------- 581 // Methods called by activity 582 //------------------------------------------------------------------------- 583 584 /** 585 * Sets a username and password pair for the specified host. This data is 586 * used by the Webview to autocomplete username and password fields in web 587 * forms. Note that this is unrelated to the credentials used for HTTP 588 * authentication. 589 * 590 * @param host the host that required the credentials 591 * @param username the username for the given host 592 * @param password the password for the given host 593 * @see WebViewDatabase#clearUsernamePassword 594 * @see WebViewDatabase#hasUsernamePassword 595 */ 596 public void savePassword(String host, String username, String password) { 597 checkThread(); 598 mProvider.savePassword(host, username, password); 599 } 600 601 /** 602 * Stores HTTP authentication credentials for a given host and realm. This 603 * method is intended to be used with 604 * {@link WebViewClient#onReceivedHttpAuthRequest}. 605 * 606 * @param host the host to which the credentials apply 607 * @param realm the realm to which the credentials apply 608 * @param username the username 609 * @param password the password 610 * @see getHttpAuthUsernamePassword 611 * @see WebViewDatabase#hasHttpAuthUsernamePassword 612 * @see WebViewDatabase#clearHttpAuthUsernamePassword 613 */ 614 public void setHttpAuthUsernamePassword(String host, String realm, 615 String username, String password) { 616 checkThread(); 617 mProvider.setHttpAuthUsernamePassword(host, realm, username, password); 618 } 619 620 /** 621 * Retrieves HTTP authentication credentials for a given host and realm. 622 * This method is intended to be used with 623 * {@link WebViewClient#onReceivedHttpAuthRequest}. 624 * 625 * @param host the host to which the credentials apply 626 * @param realm the realm to which the credentials apply 627 * @return the credentials as a String array, if found. The first element 628 * is the username and the second element is the password. Null if 629 * no credentials are found. 630 * @see setHttpAuthUsernamePassword 631 * @see WebViewDatabase#hasHttpAuthUsernamePassword 632 * @see WebViewDatabase#clearHttpAuthUsernamePassword 633 */ 634 public String[] getHttpAuthUsernamePassword(String host, String realm) { 635 checkThread(); 636 return mProvider.getHttpAuthUsernamePassword(host, realm); 637 } 638 639 /** 640 * Destroys the internal state of this WebView. This method should be called 641 * after this WebView has been removed from the view system. No other 642 * methods may be called on this WebView after destroy. 643 */ 644 public void destroy() { 645 checkThread(); 646 mProvider.destroy(); 647 } 648 649 /** 650 * Enables platform notifications of data state and proxy changes. 651 * Notifications are enabled by default. 652 * 653 * @deprecated This method is now obsolete. 654 */ 655 @Deprecated 656 public static void enablePlatformNotifications() { 657 checkThread(); 658 getFactory().getStatics().setPlatformNotificationsEnabled(true); 659 } 660 661 /** 662 * Disables platform notifications of data state and proxy changes. 663 * Notifications are enabled by default. 664 * 665 * @deprecated This method is now obsolete. 666 */ 667 @Deprecated 668 public static void disablePlatformNotifications() { 669 checkThread(); 670 getFactory().getStatics().setPlatformNotificationsEnabled(false); 671 } 672 673 /** 674 * Informs WebView of the network state. This is used to set 675 * the JavaScript property window.navigator.isOnline and 676 * generates the online/offline event as specified in HTML5, sec. 5.7.7 677 * 678 * @param networkUp a boolean indicating if network is available 679 */ 680 public void setNetworkAvailable(boolean networkUp) { 681 checkThread(); 682 mProvider.setNetworkAvailable(networkUp); 683 } 684 685 /** 686 * Saves the state of this WebView used in 687 * {@link android.app.Activity#onSaveInstanceState}. Please note that this 688 * method no longer stores the display data for this WebView. The previous 689 * behavior could potentially leak files if {@link #restoreState} was never 690 * called. See {@link #savePicture} and {@link #restorePicture} for saving 691 * and restoring the display data. 692 * 693 * @param outState the Bundle to store this WebView's state 694 * @return the same copy of the back/forward list used to save the state. If 695 * saveState fails, the returned list will be null. 696 * @see #savePicture 697 * @see #restorePicture 698 */ 699 public WebBackForwardList saveState(Bundle outState) { 700 checkThread(); 701 return mProvider.saveState(outState); 702 } 703 704 /** 705 * Saves the current display data to the Bundle given. Used in conjunction 706 * with {@link #saveState}. 707 * @param b a Bundle to store the display data 708 * @param dest the file to store the serialized picture data. Will be 709 * overwritten with this WebView's picture data. 710 * @return true if the picture was successfully saved 711 * @deprecated This method is now obsolete. 712 */ 713 @Deprecated 714 public boolean savePicture(Bundle b, final File dest) { 715 checkThread(); 716 return mProvider.savePicture(b, dest); 717 } 718 719 /** 720 * Restores the display data that was saved in {@link #savePicture}. Used in 721 * conjunction with {@link #restoreState}. Note that this will not work if 722 * this WebView is hardware accelerated. 723 * 724 * @param b a Bundle containing the saved display data 725 * @param src the file where the picture data was stored 726 * @return true if the picture was successfully restored 727 * @deprecated This method is now obsolete. 728 */ 729 @Deprecated 730 public boolean restorePicture(Bundle b, File src) { 731 checkThread(); 732 return mProvider.restorePicture(b, src); 733 } 734 735 /** 736 * Restores the state of this WebView from the given Bundle. This method is 737 * intended for use in {@link android.app.Activity#onRestoreInstanceState} 738 * and should be called to restore the state of this WebView. If 739 * it is called after this WebView has had a chance to build state (load 740 * pages, create a back/forward list, etc.) there may be undesirable 741 * side-effects. Please note that this method no longer restores the 742 * display data for this WebView. See {@link #savePicture} and {@link 743 * #restorePicture} for saving and restoring the display data. 744 * 745 * @param inState the incoming Bundle of state 746 * @return the restored back/forward list or null if restoreState failed 747 * @see #savePicture 748 * @see #restorePicture 749 */ 750 public WebBackForwardList restoreState(Bundle inState) { 751 checkThread(); 752 return mProvider.restoreState(inState); 753 } 754 755 /** 756 * Loads the given URL with the specified additional HTTP headers. 757 * 758 * @param url the URL of the resource to load 759 * @param additionalHttpHeaders the additional headers to be used in the 760 * HTTP request for this URL, specified as a map from name to 761 * value. Note that if this map contains any of the headers 762 * that are set by default by this WebView, such as those 763 * controlling caching, accept types or the User-Agent, their 764 * values may be overriden by this WebView's defaults. 765 */ 766 public void loadUrl(String url, Map<String, String> additionalHttpHeaders) { 767 checkThread(); 768 mProvider.loadUrl(url, additionalHttpHeaders); 769 } 770 771 /** 772 * Loads the given URL. 773 * 774 * @param url the URL of the resource to load 775 */ 776 public void loadUrl(String url) { 777 checkThread(); 778 mProvider.loadUrl(url); 779 } 780 781 /** 782 * Loads the URL with postData using "POST" method into this WebView. If url 783 * is not a network URL, it will be loaded with {link 784 * {@link #loadUrl(String)} instead. 785 * 786 * @param url the URL of the resource to load 787 * @param postData the data will be passed to "POST" request 788 */ 789 public void postUrl(String url, byte[] postData) { 790 checkThread(); 791 mProvider.postUrl(url, postData); 792 } 793 794 /** 795 * Loads the given data into this WebView using a 'data' scheme URL. 796 * <p> 797 * Note that JavaScript's same origin policy means that script running in a 798 * page loaded using this method will be unable to access content loaded 799 * using any scheme other than 'data', including 'http(s)'. To avoid this 800 * restriction, use {@link 801 * #loadDataWithBaseURL(String,String,String,String,String) 802 * loadDataWithBaseURL()} with an appropriate base URL. 803 * <p> 804 * If the value of the encoding parameter is 'base64', then the data must 805 * be encoded as base64. Otherwise, the data must use ASCII encoding for 806 * octets inside the range of safe URL characters and use the standard %xx 807 * hex encoding of URLs for octets outside that range. For example, 808 * '#', '%', '\', '?' should be replaced by %23, %25, %27, %3f respectively. 809 * <p> 810 * The 'data' scheme URL formed by this method uses the default US-ASCII 811 * charset. If you need need to set a different charset, you should form a 812 * 'data' scheme URL which explicitly specifies a charset parameter in the 813 * mediatype portion of the URL and call {@link #loadUrl(String)} instead. 814 * Note that the charset obtained from the mediatype portion of a data URL 815 * always overrides that specified in the HTML or XML document itself. 816 * 817 * @param data a String of data in the given encoding 818 * @param mimeType the MIME type of the data, e.g. 'text/html' 819 * @param encoding the encoding of the data 820 */ 821 public void loadData(String data, String mimeType, String encoding) { 822 checkThread(); 823 mProvider.loadData(data, mimeType, encoding); 824 } 825 826 /** 827 * Loads the given data into this WebView, using baseUrl as the base URL for 828 * the content. The base URL is used both to resolve relative URLs and when 829 * applying JavaScript's same origin policy. The historyUrl is used for the 830 * history entry. 831 * <p> 832 * Note that content specified in this way can access local device files 833 * (via 'file' scheme URLs) only if baseUrl specifies a scheme other than 834 * 'http', 'https', 'ftp', 'ftps', 'about' or 'javascript'. 835 * <p> 836 * If the base URL uses the data scheme, this method is equivalent to 837 * calling {@link #loadData(String,String,String) loadData()} and the 838 * historyUrl is ignored. 839 * 840 * @param baseUrl the URL to use as the page's base URL. If null defaults to 841 * 'about:blank'. 842 * @param data a String of data in the given encoding 843 * @param mimeType the MIMEType of the data, e.g. 'text/html'. If null, 844 * defaults to 'text/html'. 845 * @param encoding the encoding of the data 846 * @param historyUrl the URL to use as the history entry. If null defaults 847 * to 'about:blank'. 848 */ 849 public void loadDataWithBaseURL(String baseUrl, String data, 850 String mimeType, String encoding, String historyUrl) { 851 checkThread(); 852 mProvider.loadDataWithBaseURL(baseUrl, data, mimeType, encoding, historyUrl); 853 } 854 855 /** 856 * Saves the current view as a web archive. 857 * 858 * @param filename the filename where the archive should be placed 859 */ 860 public void saveWebArchive(String filename) { 861 checkThread(); 862 mProvider.saveWebArchive(filename); 863 } 864 865 /** 866 * Saves the current view as a web archive. 867 * 868 * @param basename the filename where the archive should be placed 869 * @param autoname if false, takes basename to be a file. If true, basename 870 * is assumed to be a directory in which a filename will be 871 * chosen according to the URL of the current page. 872 * @param callback called after the web archive has been saved. The 873 * parameter for onReceiveValue will either be the filename 874 * under which the file was saved, or null if saving the 875 * file failed. 876 */ 877 public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) { 878 checkThread(); 879 mProvider.saveWebArchive(basename, autoname, callback); 880 } 881 882 /** 883 * Stops the current load. 884 */ 885 public void stopLoading() { 886 checkThread(); 887 mProvider.stopLoading(); 888 } 889 890 /** 891 * Reloads the current URL. 892 */ 893 public void reload() { 894 checkThread(); 895 mProvider.reload(); 896 } 897 898 /** 899 * Gets whether this WebView has a back history item. 900 * 901 * @return true iff this WebView has a back history item 902 */ 903 public boolean canGoBack() { 904 checkThread(); 905 return mProvider.canGoBack(); 906 } 907 908 /** 909 * Goes back in the history of this WebView. 910 */ 911 public void goBack() { 912 checkThread(); 913 mProvider.goBack(); 914 } 915 916 /** 917 * Gets whether this WebView has a forward history item. 918 * 919 * @return true iff this Webview has a forward history item 920 */ 921 public boolean canGoForward() { 922 checkThread(); 923 return mProvider.canGoForward(); 924 } 925 926 /** 927 * Goes forward in the history of this WebView. 928 */ 929 public void goForward() { 930 checkThread(); 931 mProvider.goForward(); 932 } 933 934 /** 935 * Gets whether the page can go back or forward the given 936 * number of steps. 937 * 938 * @param steps the negative or positive number of steps to move the 939 * history 940 */ 941 public boolean canGoBackOrForward(int steps) { 942 checkThread(); 943 return mProvider.canGoBackOrForward(steps); 944 } 945 946 /** 947 * Goes to the history item that is the number of steps away from 948 * the current item. Steps is negative if backward and positive 949 * if forward. 950 * 951 * @param steps the number of steps to take back or forward in the back 952 * forward list 953 */ 954 public void goBackOrForward(int steps) { 955 checkThread(); 956 mProvider.goBackOrForward(steps); 957 } 958 959 /** 960 * Gets whether private browsing is enabled in this WebView. 961 */ 962 public boolean isPrivateBrowsingEnabled() { 963 checkThread(); 964 return mProvider.isPrivateBrowsingEnabled(); 965 } 966 967 /** 968 * Scrolls the contents of this WebView up by half the view size. 969 * 970 * @param top true to jump to the top of the page 971 * @return true if the page was scrolled 972 */ 973 public boolean pageUp(boolean top) { 974 checkThread(); 975 return mProvider.pageUp(top); 976 } 977 978 /** 979 * Scrolls the contents of this WebView down by half the page size. 980 * 981 * @param bottom true to jump to bottom of page 982 * @return true if the page was scrolled 983 */ 984 public boolean pageDown(boolean bottom) { 985 checkThread(); 986 return mProvider.pageDown(bottom); 987 } 988 989 /** 990 * Clears this WebView so that onDraw() will draw nothing but white background, 991 * and onMeasure() will return 0 if MeasureSpec is not MeasureSpec.EXACTLY. 992 */ 993 public void clearView() { 994 checkThread(); 995 mProvider.clearView(); 996 } 997 998 /** 999 * Gets a new picture that captures the current contents of this WebView. 1000 * The picture is of the entire document being displayed, and is not 1001 * limited to the area currently displayed by this WebView. Also, the 1002 * picture is a static copy and is unaffected by later changes to the 1003 * content being displayed. 1004 * <p> 1005 * Note that due to internal changes, for API levels between 1006 * {@link android.os.Build.VERSION_CODES#HONEYCOMB} and 1007 * {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH} inclusive, the 1008 * picture does not include fixed position elements or scrollable divs. 1009 * 1010 * @return a picture that captures the current contents of this WebView 1011 */ 1012 public Picture capturePicture() { 1013 checkThread(); 1014 return mProvider.capturePicture(); 1015 } 1016 1017 /** 1018 * Gets the current scale of this WebView. 1019 * 1020 * @return the current scale 1021 */ 1022 @ViewDebug.ExportedProperty(category = "webview") 1023 public float getScale() { 1024 checkThread(); 1025 return mProvider.getScale(); 1026 } 1027 1028 /** 1029 * Sets the initial scale for this WebView. 0 means default. If 1030 * {@link WebSettings#getUseWideViewPort()} is true, it zooms out all the 1031 * way. Otherwise it starts with 100%. If initial scale is greater than 0, 1032 * WebView starts with this value as initial scale. 1033 * Please note that unlike the scale properties in the viewport meta tag, 1034 * this method doesn't take the screen density into account. 1035 * 1036 * @param scaleInPercent the initial scale in percent 1037 */ 1038 public void setInitialScale(int scaleInPercent) { 1039 checkThread(); 1040 mProvider.setInitialScale(scaleInPercent); 1041 } 1042 1043 /** 1044 * Invokes the graphical zoom picker widget for this WebView. This will 1045 * result in the zoom widget appearing on the screen to control the zoom 1046 * level of this WebView. 1047 */ 1048 public void invokeZoomPicker() { 1049 checkThread(); 1050 mProvider.invokeZoomPicker(); 1051 } 1052 1053 /** 1054 * Gets a HitTestResult based on the current cursor node. If a HTML::a 1055 * tag is found and the anchor has a non-JavaScript URL, the HitTestResult 1056 * type is set to SRC_ANCHOR_TYPE and the URL is set in the "extra" field. 1057 * If the anchor does not have a URL or if it is a JavaScript URL, the type 1058 * will be UNKNOWN_TYPE and the URL has to be retrieved through 1059 * {@link #requestFocusNodeHref} asynchronously. If a HTML::img tag is 1060 * found, the HitTestResult type is set to IMAGE_TYPE and the URL is set in 1061 * the "extra" field. A type of 1062 * SRC_IMAGE_ANCHOR_TYPE indicates an anchor with a URL that has an image as 1063 * a child node. If a phone number is found, the HitTestResult type is set 1064 * to PHONE_TYPE and the phone number is set in the "extra" field of 1065 * HitTestResult. If a map address is found, the HitTestResult type is set 1066 * to GEO_TYPE and the address is set in the "extra" field of HitTestResult. 1067 * If an email address is found, the HitTestResult type is set to EMAIL_TYPE 1068 * and the email is set in the "extra" field of HitTestResult. Otherwise, 1069 * HitTestResult type is set to UNKNOWN_TYPE. 1070 */ 1071 public HitTestResult getHitTestResult() { 1072 checkThread(); 1073 return mProvider.getHitTestResult(); 1074 } 1075 1076 /** 1077 * Requests the anchor or image element URL at the last tapped point. 1078 * If hrefMsg is null, this method returns immediately and does not 1079 * dispatch hrefMsg to its target. If the tapped point hits an image, 1080 * an anchor, or an image in an anchor, the message associates 1081 * strings in named keys in its data. The value paired with the key 1082 * may be an empty string. 1083 * 1084 * @param hrefMsg the message to be dispatched with the result of the 1085 * request. The message data contains three keys. "url" 1086 * returns the anchor's href attribute. "title" returns the 1087 * anchor's text. "src" returns the image's src attribute. 1088 */ 1089 public void requestFocusNodeHref(Message hrefMsg) { 1090 checkThread(); 1091 mProvider.requestFocusNodeHref(hrefMsg); 1092 } 1093 1094 /** 1095 * Requests the URL of the image last touched by the user. msg will be sent 1096 * to its target with a String representing the URL as its object. 1097 * 1098 * @param msg the message to be dispatched with the result of the request 1099 * as the data member with "url" as key. The result can be null. 1100 */ 1101 public void requestImageRef(Message msg) { 1102 checkThread(); 1103 mProvider.requestImageRef(msg); 1104 } 1105 1106 /** 1107 * Gets the URL for the current page. This is not always the same as the URL 1108 * passed to WebViewClient.onPageStarted because although the load for 1109 * that URL has begun, the current page may not have changed. 1110 * 1111 * @return the URL for the current page 1112 */ 1113 @ViewDebug.ExportedProperty(category = "webview") 1114 public String getUrl() { 1115 checkThread(); 1116 return mProvider.getUrl(); 1117 } 1118 1119 /** 1120 * Gets the original URL for the current page. This is not always the same 1121 * as the URL passed to WebViewClient.onPageStarted because although the 1122 * load for that URL has begun, the current page may not have changed. 1123 * Also, there may have been redirects resulting in a different URL to that 1124 * originally requested. 1125 * 1126 * @return the URL that was originally requested for the current page 1127 */ 1128 @ViewDebug.ExportedProperty(category = "webview") 1129 public String getOriginalUrl() { 1130 checkThread(); 1131 return mProvider.getOriginalUrl(); 1132 } 1133 1134 /** 1135 * Gets the title for the current page. This is the title of the current page 1136 * until WebViewClient.onReceivedTitle is called. 1137 * 1138 * @return the title for the current page 1139 */ 1140 @ViewDebug.ExportedProperty(category = "webview") 1141 public String getTitle() { 1142 checkThread(); 1143 return mProvider.getTitle(); 1144 } 1145 1146 /** 1147 * Gets the favicon for the current page. This is the favicon of the current 1148 * page until WebViewClient.onReceivedIcon is called. 1149 * 1150 * @return the favicon for the current page 1151 */ 1152 public Bitmap getFavicon() { 1153 checkThread(); 1154 return mProvider.getFavicon(); 1155 } 1156 1157 /** 1158 * Gets the touch icon URL for the apple-touch-icon <link> element, or 1159 * a URL on this site's server pointing to the standard location of a 1160 * touch icon. 1161 * 1162 * @hide 1163 */ 1164 public String getTouchIconUrl() { 1165 return mProvider.getTouchIconUrl(); 1166 } 1167 1168 /** 1169 * Gets the progress for the current page. 1170 * 1171 * @return the progress for the current page between 0 and 100 1172 */ 1173 public int getProgress() { 1174 checkThread(); 1175 return mProvider.getProgress(); 1176 } 1177 1178 /** 1179 * Gets the height of the HTML content. 1180 * 1181 * @return the height of the HTML content 1182 */ 1183 @ViewDebug.ExportedProperty(category = "webview") 1184 public int getContentHeight() { 1185 checkThread(); 1186 return mProvider.getContentHeight(); 1187 } 1188 1189 /** 1190 * Gets the width of the HTML content. 1191 * 1192 * @return the width of the HTML content 1193 * @hide 1194 */ 1195 @ViewDebug.ExportedProperty(category = "webview") 1196 public int getContentWidth() { 1197 return mProvider.getContentWidth(); 1198 } 1199 1200 /** 1201 * Pauses all layout, parsing, and JavaScript timers for all WebViews. This 1202 * is a global requests, not restricted to just this WebView. This can be 1203 * useful if the application has been paused. 1204 */ 1205 public void pauseTimers() { 1206 checkThread(); 1207 mProvider.pauseTimers(); 1208 } 1209 1210 /** 1211 * Resumes all layout, parsing, and JavaScript timers for all WebViews. 1212 * This will resume dispatching all timers. 1213 */ 1214 public void resumeTimers() { 1215 checkThread(); 1216 mProvider.resumeTimers(); 1217 } 1218 1219 /** 1220 * Pauses any extra processing associated with this WebView and its 1221 * associated DOM, plugins, JavaScript etc. For example, if this WebView is 1222 * taken offscreen, this could be called to reduce unnecessary CPU or 1223 * network traffic. When this WebView is again "active", call onResume(). 1224 * Note that this differs from pauseTimers(), which affects all WebViews. 1225 */ 1226 public void onPause() { 1227 checkThread(); 1228 mProvider.onPause(); 1229 } 1230 1231 /** 1232 * Resumes a WebView after a previous call to onPause(). 1233 */ 1234 public void onResume() { 1235 checkThread(); 1236 mProvider.onResume(); 1237 } 1238 1239 /** 1240 * Gets whether this WebView is paused, meaning onPause() was called. 1241 * Calling onResume() sets the paused state back to false. 1242 * 1243 * @hide 1244 */ 1245 public boolean isPaused() { 1246 return mProvider.isPaused(); 1247 } 1248 1249 /** 1250 * Informs this WebView that memory is low so that it can free any available 1251 * memory. 1252 */ 1253 public void freeMemory() { 1254 checkThread(); 1255 mProvider.freeMemory(); 1256 } 1257 1258 /** 1259 * Clears the resource cache. Note that the cache is per-application, so 1260 * this will clear the cache for all WebViews used. 1261 * 1262 * @param includeDiskFiles if false, only the RAM cache is cleared 1263 */ 1264 public void clearCache(boolean includeDiskFiles) { 1265 checkThread(); 1266 mProvider.clearCache(includeDiskFiles); 1267 } 1268 1269 /** 1270 * Removes the autocomplete popup from the currently focused form field, if 1271 * present. Note this only affects the display of the autocomplete popup, 1272 * it does not remove any saved form data from this WebView's store. To do 1273 * that, use {@link WebViewDatabase#clearFormData}. 1274 */ 1275 public void clearFormData() { 1276 checkThread(); 1277 mProvider.clearFormData(); 1278 } 1279 1280 /** 1281 * Tells this WebView to clear its internal back/forward list. 1282 */ 1283 public void clearHistory() { 1284 checkThread(); 1285 mProvider.clearHistory(); 1286 } 1287 1288 /** 1289 * Clears the SSL preferences table stored in response to proceeding with 1290 * SSL certificate errors. 1291 */ 1292 public void clearSslPreferences() { 1293 checkThread(); 1294 mProvider.clearSslPreferences(); 1295 } 1296 1297 /** 1298 * Gets the WebBackForwardList for this WebView. This contains the 1299 * back/forward list for use in querying each item in the history stack. 1300 * This is a copy of the private WebBackForwardList so it contains only a 1301 * snapshot of the current state. Multiple calls to this method may return 1302 * different objects. The object returned from this method will not be 1303 * updated to reflect any new state. 1304 */ 1305 public WebBackForwardList copyBackForwardList() { 1306 checkThread(); 1307 return mProvider.copyBackForwardList(); 1308 1309 } 1310 1311 /** 1312 * Registers the listener to be notified as find-on-page operations 1313 * progress. This will replace the current listener. 1314 * 1315 * @param listener an implementation of {@link FindListener} 1316 */ 1317 public void setFindListener(FindListener listener) { 1318 checkThread(); 1319 mProvider.setFindListener(listener); 1320 } 1321 1322 /** 1323 * Highlights and scrolls to the next match found by {@link #findAll} or 1324 * {@link #findAllAsync}, wrapping around page boundaries as necessary. 1325 * Notifies any registered {@link FindListener}. If neither 1326 * {@link #findAll} nor {@link #findAllAsync(String)} has been called yet, 1327 * or if {@link #clearMatches} has been called since the last find 1328 * operation, this function does nothing. 1329 * 1330 * @param forward the direction to search 1331 * @see #setFindListener 1332 */ 1333 public void findNext(boolean forward) { 1334 checkThread(); 1335 mProvider.findNext(forward); 1336 } 1337 1338 /** 1339 * Finds all instances of find on the page and highlights them. 1340 * Notifies any registered {@link FindListener}. 1341 * 1342 * @param find the string to find 1343 * @return the number of occurances of the String "find" that were found 1344 * @deprecated {@link #findAllAsync} is preferred. 1345 * @see #setFindListener 1346 */ 1347 @Deprecated 1348 public int findAll(String find) { 1349 checkThread(); 1350 StrictMode.noteSlowCall("findAll blocks UI: prefer findAllAsync"); 1351 return mProvider.findAll(find); 1352 } 1353 1354 /** 1355 * Finds all instances of find on the page and highlights them, 1356 * asynchronously. Notifies any registered {@link FindListener}. 1357 * Successive calls to this or {@link #findAll} will cancel any 1358 * pending searches. 1359 * 1360 * @param find the string to find. 1361 * @see #setFindListener 1362 */ 1363 public void findAllAsync(String find) { 1364 checkThread(); 1365 mProvider.findAllAsync(find); 1366 } 1367 1368 /** 1369 * Starts an ActionMode for finding text in this WebView. Only works if this 1370 * WebView is attached to the view system. 1371 * 1372 * @param text if non-null, will be the initial text to search for. 1373 * Otherwise, the last String searched for in this WebView will 1374 * be used to start. 1375 * @param showIme if true, show the IME, assuming the user will begin typing. 1376 * If false and text is non-null, perform a find all. 1377 * @return true if the find dialog is shown, false otherwise 1378 */ 1379 public boolean showFindDialog(String text, boolean showIme) { 1380 checkThread(); 1381 return mProvider.showFindDialog(text, showIme); 1382 } 1383 1384 /** 1385 * Gets the first substring consisting of the address of a physical 1386 * location. Currently, only addresses in the United States are detected, 1387 * and consist of: 1388 * <ul> 1389 * <li>a house number</li> 1390 * <li>a street name</li> 1391 * <li>a street type (Road, Circle, etc), either spelled out or 1392 * abbreviated</li> 1393 * <li>a city name</li> 1394 * <li>a state or territory, either spelled out or two-letter abbr</li> 1395 * <li>an optional 5 digit or 9 digit zip code</li> 1396 * </ul> 1397 * All names must be correctly capitalized, and the zip code, if present, 1398 * must be valid for the state. The street type must be a standard USPS 1399 * spelling or abbreviation. The state or territory must also be spelled 1400 * or abbreviated using USPS standards. The house number may not exceed 1401 * five digits. 1402 * 1403 * @param addr the string to search for addresses 1404 * @return the address, or if no address is found, null 1405 */ 1406 public static String findAddress(String addr) { 1407 checkThread(); 1408 return getFactory().getStatics().findAddress(addr); 1409 } 1410 1411 /** 1412 * Clears the highlighting surrounding text matches created by 1413 * {@link #findAll} or {@link #findAllAsync}. 1414 */ 1415 public void clearMatches() { 1416 checkThread(); 1417 mProvider.clearMatches(); 1418 } 1419 1420 /** 1421 * Queries the document to see if it contains any image references. The 1422 * message object will be dispatched with arg1 being set to 1 if images 1423 * were found and 0 if the document does not reference any images. 1424 * 1425 * @param response the message that will be dispatched with the result 1426 */ 1427 public void documentHasImages(Message response) { 1428 checkThread(); 1429 mProvider.documentHasImages(response); 1430 } 1431 1432 /** 1433 * Sets the WebViewClient that will receive various notifications and 1434 * requests. This will replace the current handler. 1435 * 1436 * @param client an implementation of WebViewClient 1437 */ 1438 public void setWebViewClient(WebViewClient client) { 1439 checkThread(); 1440 mProvider.setWebViewClient(client); 1441 } 1442 1443 /** 1444 * Registers the interface to be used when content can not be handled by 1445 * the rendering engine, and should be downloaded instead. This will replace 1446 * the current handler. 1447 * 1448 * @param listener an implementation of DownloadListener 1449 */ 1450 public void setDownloadListener(DownloadListener listener) { 1451 checkThread(); 1452 mProvider.setDownloadListener(listener); 1453 } 1454 1455 /** 1456 * Sets the chrome handler. This is an implementation of WebChromeClient for 1457 * use in handling JavaScript dialogs, favicons, titles, and the progress. 1458 * This will replace the current handler. 1459 * 1460 * @param client an implementation of WebChromeClient 1461 */ 1462 public void setWebChromeClient(WebChromeClient client) { 1463 checkThread(); 1464 mProvider.setWebChromeClient(client); 1465 } 1466 1467 /** 1468 * Sets the Picture listener. This is an interface used to receive 1469 * notifications of a new Picture. 1470 * 1471 * @param listener an implementation of WebView.PictureListener 1472 * @deprecated This method is now obsolete. 1473 */ 1474 @Deprecated 1475 public void setPictureListener(PictureListener listener) { 1476 checkThread(); 1477 mProvider.setPictureListener(listener); 1478 } 1479 1480 /** 1481 * Injects the supplied Java object into this WebView. The object is 1482 * injected into the JavaScript context of the main frame, using the 1483 * supplied name. This allows the Java object's public methods to be 1484 * accessed from JavaScript. Note that that injected objects will not 1485 * appear in JavaScript until the page is next (re)loaded. For example: 1486 * <pre> webView.addJavascriptInterface(new Object(), "injectedObject"); 1487 * webView.loadData("<!DOCTYPE html><title></title>", "text/html", null); 1488 * webView.loadUrl("javascript:alert(injectedObject.toString())");</pre> 1489 * <p> 1490 * <strong>IMPORTANT:</strong> 1491 * <ul> 1492 * <li> This method can be used to allow JavaScript to control the host 1493 * application. This is a powerful feature, but also presents a security 1494 * risk, particularly as JavaScript could use reflection to access an 1495 * injected object's public fields. Use of this method in a WebView 1496 * containing untrusted content could allow an attacker to manipulate the 1497 * host application in unintended ways, executing Java code with the 1498 * permissions of the host application. Use extreme care when using this 1499 * method in a WebView which could contain untrusted content.</li> 1500 * <li> JavaScript interacts with Java object on a private, background 1501 * thread of this WebView. Care is therefore required to maintain thread 1502 * safety.</li> 1503 * </ul> 1504 * 1505 * @param object the Java object to inject into this WebView's JavaScript 1506 * context. Null values are ignored. 1507 * @param name the name used to expose the object in JavaScript 1508 */ 1509 public void addJavascriptInterface(Object object, String name) { 1510 checkThread(); 1511 mProvider.addJavascriptInterface(object, name); 1512 } 1513 1514 /** 1515 * Removes a previously injected Java object from this WebView. Note that 1516 * the removal will not be reflected in JavaScript until the page is next 1517 * (re)loaded. See {@link #addJavascriptInterface}. 1518 * 1519 * @param name the name used to expose the object in JavaScript 1520 */ 1521 public void removeJavascriptInterface(String name) { 1522 checkThread(); 1523 mProvider.removeJavascriptInterface(name); 1524 } 1525 1526 /** 1527 * Gets the WebSettings object used to control the settings for this 1528 * WebView. 1529 * 1530 * @return a WebSettings object that can be used to control this WebView's 1531 * settings 1532 */ 1533 public WebSettings getSettings() { 1534 checkThread(); 1535 return mProvider.getSettings(); 1536 } 1537 1538 /** 1539 * Gets the list of currently loaded plugins. 1540 * 1541 * @return the list of currently loaded plugins 1542 * @deprecated This was used for Gears, which has been deprecated. 1543 * @hide 1544 */ 1545 @Deprecated 1546 public static synchronized PluginList getPluginList() { 1547 checkThread(); 1548 return new PluginList(); 1549 } 1550 1551 /** 1552 * @deprecated This was used for Gears, which has been deprecated. 1553 * @hide 1554 */ 1555 @Deprecated 1556 public void refreshPlugins(boolean reloadOpenPages) { 1557 checkThread(); 1558 } 1559 1560 /** 1561 * Puts this WebView into text selection mode. Do not rely on this 1562 * functionality; it will be deprecated in the future. 1563 * 1564 * @deprecated This method is now obsolete. 1565 */ 1566 @Deprecated 1567 public void emulateShiftHeld() { 1568 checkThread(); 1569 } 1570 1571 /** 1572 * @deprecated WebView no longer needs to implement 1573 * ViewGroup.OnHierarchyChangeListener. This method does nothing now. 1574 */ 1575 @Override 1576 // Cannot add @hide as this can always be accessed via the interface. 1577 @Deprecated 1578 public void onChildViewAdded(View parent, View child) {} 1579 1580 /** 1581 * @deprecated WebView no longer needs to implement 1582 * ViewGroup.OnHierarchyChangeListener. This method does nothing now. 1583 */ 1584 @Override 1585 // Cannot add @hide as this can always be accessed via the interface. 1586 @Deprecated 1587 public void onChildViewRemoved(View p, View child) {} 1588 1589 /** 1590 * @deprecated WebView should not have implemented 1591 * ViewTreeObserver.OnGlobalFocusChangeListener. This method does nothing now. 1592 */ 1593 @Override 1594 // Cannot add @hide as this can always be accessed via the interface. 1595 @Deprecated 1596 public void onGlobalFocusChanged(View oldFocus, View newFocus) { 1597 } 1598 1599 public void setMapTrackballToArrowKeys(boolean setMap) { 1600 checkThread(); 1601 mProvider.setMapTrackballToArrowKeys(setMap); 1602 } 1603 1604 1605 public void flingScroll(int vx, int vy) { 1606 checkThread(); 1607 mProvider.flingScroll(vx, vy); 1608 } 1609 1610 /** 1611 * Gets the zoom controls for this WebView, as a separate View. The caller 1612 * is responsible for inserting this View into the layout hierarchy. 1613 * <p/> 1614 * API level {@link android.os.Build.VERSION_CODES#CUPCAKE} introduced 1615 * built-in zoom mechanisms for the WebView, as opposed to these separate 1616 * zoom controls. The built-in mechanisms are preferred and can be enabled 1617 * using {@link WebSettings#setBuiltInZoomControls}. 1618 * 1619 * @deprecated the built-in zoom mechanisms are preferred 1620 * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN} 1621 */ 1622 @Deprecated 1623 public View getZoomControls() { 1624 checkThread(); 1625 return mProvider.getZoomControls(); 1626 } 1627 1628 /** 1629 * Gets whether this WebView can be zoomed in. 1630 * 1631 * @return true if this WebView can be zoomed in 1632 */ 1633 public boolean canZoomIn() { 1634 checkThread(); 1635 return mProvider.canZoomIn(); 1636 } 1637 1638 /** 1639 * Gets whether this WebView can be zoomed out. 1640 * 1641 * @return true if this WebView can be zoomed out 1642 */ 1643 public boolean canZoomOut() { 1644 checkThread(); 1645 return mProvider.canZoomOut(); 1646 } 1647 1648 /** 1649 * Performs zoom in in this WebView. 1650 * 1651 * @return true if zoom in succeeds, false if no zoom changes 1652 */ 1653 public boolean zoomIn() { 1654 checkThread(); 1655 return mProvider.zoomIn(); 1656 } 1657 1658 /** 1659 * Performs zoom out in this WebView. 1660 * 1661 * @return true if zoom out succeeds, false if no zoom changes 1662 */ 1663 public boolean zoomOut() { 1664 checkThread(); 1665 return mProvider.zoomOut(); 1666 } 1667 1668 /** 1669 * @deprecated This method is now obsolete. 1670 */ 1671 @Deprecated 1672 public void debugDump() { 1673 checkThread(); 1674 } 1675 1676 /** 1677 * See {@link ViewDebug.HierarchyHandler#dumpViewHierarchyWithProperties(BufferedWriter, int)} 1678 * @hide 1679 */ 1680 @Override 1681 public void dumpViewHierarchyWithProperties(BufferedWriter out, int level) { 1682 mProvider.dumpViewHierarchyWithProperties(out, level); 1683 } 1684 1685 /** 1686 * See {@link ViewDebug.HierarchyHandler#findHierarchyView(String, int)} 1687 * @hide 1688 */ 1689 @Override 1690 public View findHierarchyView(String className, int hashCode) { 1691 return mProvider.findHierarchyView(className, hashCode); 1692 } 1693 1694 //------------------------------------------------------------------------- 1695 // Interface for WebView providers 1696 //------------------------------------------------------------------------- 1697 1698 /** 1699 * Gets the WebViewProvider. Used by providers to obtain the underlying 1700 * implementation, e.g. when the appliction responds to 1701 * WebViewClient.onCreateWindow() request. 1702 * 1703 * @hide WebViewProvider is not public API. 1704 */ 1705 public WebViewProvider getWebViewProvider() { 1706 return mProvider; 1707 } 1708 1709 /** 1710 * Callback interface, allows the provider implementation to access non-public methods 1711 * and fields, and make super-class calls in this WebView instance. 1712 * @hide Only for use by WebViewProvider implementations 1713 */ 1714 public class PrivateAccess { 1715 // ---- Access to super-class methods ---- 1716 public int super_getScrollBarStyle() { 1717 return WebView.super.getScrollBarStyle(); 1718 } 1719 1720 public void super_scrollTo(int scrollX, int scrollY) { 1721 WebView.super.scrollTo(scrollX, scrollY); 1722 } 1723 1724 public void super_computeScroll() { 1725 WebView.super.computeScroll(); 1726 } 1727 1728 public boolean super_onHoverEvent(MotionEvent event) { 1729 return WebView.super.onHoverEvent(event); 1730 } 1731 1732 public boolean super_performAccessibilityAction(int action, Bundle arguments) { 1733 return WebView.super.performAccessibilityAction(action, arguments); 1734 } 1735 1736 public boolean super_performLongClick() { 1737 return WebView.super.performLongClick(); 1738 } 1739 1740 public boolean super_setFrame(int left, int top, int right, int bottom) { 1741 return WebView.super.setFrame(left, top, right, bottom); 1742 } 1743 1744 public boolean super_dispatchKeyEvent(KeyEvent event) { 1745 return WebView.super.dispatchKeyEvent(event); 1746 } 1747 1748 public boolean super_onGenericMotionEvent(MotionEvent event) { 1749 return WebView.super.onGenericMotionEvent(event); 1750 } 1751 1752 public boolean super_requestFocus(int direction, Rect previouslyFocusedRect) { 1753 return WebView.super.requestFocus(direction, previouslyFocusedRect); 1754 } 1755 1756 public void super_setLayoutParams(ViewGroup.LayoutParams params) { 1757 WebView.super.setLayoutParams(params); 1758 } 1759 1760 // ---- Access to non-public methods ---- 1761 public void overScrollBy(int deltaX, int deltaY, 1762 int scrollX, int scrollY, 1763 int scrollRangeX, int scrollRangeY, 1764 int maxOverScrollX, int maxOverScrollY, 1765 boolean isTouchEvent) { 1766 WebView.this.overScrollBy(deltaX, deltaY, scrollX, scrollY, scrollRangeX, scrollRangeY, 1767 maxOverScrollX, maxOverScrollY, isTouchEvent); 1768 } 1769 1770 public void awakenScrollBars(int duration) { 1771 WebView.this.awakenScrollBars(duration); 1772 } 1773 1774 public void awakenScrollBars(int duration, boolean invalidate) { 1775 WebView.this.awakenScrollBars(duration, invalidate); 1776 } 1777 1778 public float getVerticalScrollFactor() { 1779 return WebView.this.getVerticalScrollFactor(); 1780 } 1781 1782 public float getHorizontalScrollFactor() { 1783 return WebView.this.getHorizontalScrollFactor(); 1784 } 1785 1786 public void setMeasuredDimension(int measuredWidth, int measuredHeight) { 1787 WebView.this.setMeasuredDimension(measuredWidth, measuredHeight); 1788 } 1789 1790 public void onScrollChanged(int l, int t, int oldl, int oldt) { 1791 WebView.this.onScrollChanged(l, t, oldl, oldt); 1792 } 1793 1794 public int getHorizontalScrollbarHeight() { 1795 return WebView.this.getHorizontalScrollbarHeight(); 1796 } 1797 1798 // ---- Access to (non-public) fields ---- 1799 /** Raw setter for the scroll X value, without invoking onScrollChanged handlers etc. */ 1800 public void setScrollXRaw(int scrollX) { 1801 WebView.this.mScrollX = scrollX; 1802 } 1803 1804 /** Raw setter for the scroll Y value, without invoking onScrollChanged handlers etc. */ 1805 public void setScrollYRaw(int scrollY) { 1806 WebView.this.mScrollY = scrollY; 1807 } 1808 1809 } 1810 1811 //------------------------------------------------------------------------- 1812 // Private internal stuff 1813 //------------------------------------------------------------------------- 1814 1815 private WebViewProvider mProvider; 1816 1817 private void ensureProviderCreated() { 1818 checkThread(); 1819 if (mProvider == null) { 1820 // As this can get called during the base class constructor chain, pass the minimum 1821 // number of dependencies here; the rest are deferred to init(). 1822 mProvider = getFactory().createWebView(this, new PrivateAccess()); 1823 } 1824 } 1825 1826 private static synchronized WebViewFactoryProvider getFactory() { 1827 // For now the main purpose of this function (and the factory abstration) is to keep 1828 // us honest and minimize usage of WebViewClassic internals when binding the proxy. 1829 checkThread(); 1830 return WebViewFactory.getProvider(); 1831 } 1832 1833 private static void checkThread() { 1834 if (Looper.myLooper() != Looper.getMainLooper()) { 1835 Throwable throwable = new Throwable( 1836 "Warning: A WebView method was called on thread '" + 1837 Thread.currentThread().getName() + "'. " + 1838 "All WebView methods must be called on the UI thread. " + 1839 "Future versions of WebView may not support use on other threads."); 1840 Log.w(LOGTAG, Log.getStackTraceString(throwable)); 1841 StrictMode.onWebViewMethodCalledOnWrongThread(throwable); 1842 } 1843 } 1844 1845 //------------------------------------------------------------------------- 1846 // Override View methods 1847 //------------------------------------------------------------------------- 1848 1849 // TODO: Add a test that enumerates all methods in ViewDelegte & ScrollDelegate, and ensures 1850 // there's a corresponding override (or better, caller) for each of them in here. 1851 1852 @Override 1853 protected void onAttachedToWindow() { 1854 super.onAttachedToWindow(); 1855 mProvider.getViewDelegate().onAttachedToWindow(); 1856 } 1857 1858 @Override 1859 protected void onDetachedFromWindow() { 1860 mProvider.getViewDelegate().onDetachedFromWindow(); 1861 super.onDetachedFromWindow(); 1862 } 1863 1864 @Override 1865 public void setLayoutParams(ViewGroup.LayoutParams params) { 1866 mProvider.getViewDelegate().setLayoutParams(params); 1867 } 1868 1869 @Override 1870 public void setOverScrollMode(int mode) { 1871 super.setOverScrollMode(mode); 1872 // This method may called in the constructor chain, before the WebView provider is 1873 // created. (Fortunately, this is the only method we override that can get called by 1874 // any of the base class constructors). 1875 ensureProviderCreated(); 1876 mProvider.getViewDelegate().setOverScrollMode(mode); 1877 } 1878 1879 @Override 1880 public void setScrollBarStyle(int style) { 1881 mProvider.getViewDelegate().setScrollBarStyle(style); 1882 super.setScrollBarStyle(style); 1883 } 1884 1885 @Override 1886 protected int computeHorizontalScrollRange() { 1887 return mProvider.getScrollDelegate().computeHorizontalScrollRange(); 1888 } 1889 1890 @Override 1891 protected int computeHorizontalScrollOffset() { 1892 return mProvider.getScrollDelegate().computeHorizontalScrollOffset(); 1893 } 1894 1895 @Override 1896 protected int computeVerticalScrollRange() { 1897 return mProvider.getScrollDelegate().computeVerticalScrollRange(); 1898 } 1899 1900 @Override 1901 protected int computeVerticalScrollOffset() { 1902 return mProvider.getScrollDelegate().computeVerticalScrollOffset(); 1903 } 1904 1905 @Override 1906 protected int computeVerticalScrollExtent() { 1907 return mProvider.getScrollDelegate().computeVerticalScrollExtent(); 1908 } 1909 1910 @Override 1911 public void computeScroll() { 1912 mProvider.getScrollDelegate().computeScroll(); 1913 } 1914 1915 @Override 1916 public boolean onHoverEvent(MotionEvent event) { 1917 return mProvider.getViewDelegate().onHoverEvent(event); 1918 } 1919 1920 @Override 1921 public boolean onTouchEvent(MotionEvent event) { 1922 return mProvider.getViewDelegate().onTouchEvent(event); 1923 } 1924 1925 @Override 1926 public boolean onGenericMotionEvent(MotionEvent event) { 1927 return mProvider.getViewDelegate().onGenericMotionEvent(event); 1928 } 1929 1930 @Override 1931 public boolean onTrackballEvent(MotionEvent event) { 1932 return mProvider.getViewDelegate().onTrackballEvent(event); 1933 } 1934 1935 @Override 1936 public boolean onKeyDown(int keyCode, KeyEvent event) { 1937 return mProvider.getViewDelegate().onKeyDown(keyCode, event); 1938 } 1939 1940 @Override 1941 public boolean onKeyUp(int keyCode, KeyEvent event) { 1942 return mProvider.getViewDelegate().onKeyUp(keyCode, event); 1943 } 1944 1945 @Override 1946 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 1947 return mProvider.getViewDelegate().onKeyMultiple(keyCode, repeatCount, event); 1948 } 1949 1950 /* 1951 TODO: These are not currently implemented in WebViewClassic, but it seems inconsistent not 1952 to be delegating them too. 1953 1954 @Override 1955 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 1956 return mProvider.getViewDelegate().onKeyPreIme(keyCode, event); 1957 } 1958 @Override 1959 public boolean onKeyLongPress(int keyCode, KeyEvent event) { 1960 return mProvider.getViewDelegate().onKeyLongPress(keyCode, event); 1961 } 1962 @Override 1963 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 1964 return mProvider.getViewDelegate().onKeyShortcut(keyCode, event); 1965 } 1966 */ 1967 1968 @Deprecated 1969 @Override 1970 public boolean shouldDelayChildPressedState() { 1971 return mProvider.getViewDelegate().shouldDelayChildPressedState(); 1972 } 1973 1974 @Override 1975 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 1976 super.onInitializeAccessibilityNodeInfo(info); 1977 info.setClassName(WebView.class.getName()); 1978 mProvider.getViewDelegate().onInitializeAccessibilityNodeInfo(info); 1979 } 1980 1981 @Override 1982 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 1983 super.onInitializeAccessibilityEvent(event); 1984 event.setClassName(WebView.class.getName()); 1985 mProvider.getViewDelegate().onInitializeAccessibilityEvent(event); 1986 } 1987 1988 @Override 1989 public boolean performAccessibilityAction(int action, Bundle arguments) { 1990 return mProvider.getViewDelegate().performAccessibilityAction(action, arguments); 1991 } 1992 1993 /** @hide */ 1994 @Override 1995 protected void onDrawVerticalScrollBar(Canvas canvas, Drawable scrollBar, 1996 int l, int t, int r, int b) { 1997 mProvider.getViewDelegate().onDrawVerticalScrollBar(canvas, scrollBar, l, t, r, b); 1998 } 1999 2000 @Override 2001 protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 2002 mProvider.getViewDelegate().onOverScrolled(scrollX, scrollY, clampedX, clampedY); 2003 } 2004 2005 @Override 2006 protected void onWindowVisibilityChanged(int visibility) { 2007 super.onWindowVisibilityChanged(visibility); 2008 mProvider.getViewDelegate().onWindowVisibilityChanged(visibility); 2009 } 2010 2011 @Override 2012 protected void onDraw(Canvas canvas) { 2013 mProvider.getViewDelegate().onDraw(canvas); 2014 } 2015 2016 @Override 2017 public boolean performLongClick() { 2018 return mProvider.getViewDelegate().performLongClick(); 2019 } 2020 2021 @Override 2022 protected void onConfigurationChanged(Configuration newConfig) { 2023 mProvider.getViewDelegate().onConfigurationChanged(newConfig); 2024 } 2025 2026 @Override 2027 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 2028 return mProvider.getViewDelegate().onCreateInputConnection(outAttrs); 2029 } 2030 2031 @Override 2032 protected void onVisibilityChanged(View changedView, int visibility) { 2033 super.onVisibilityChanged(changedView, visibility); 2034 mProvider.getViewDelegate().onVisibilityChanged(changedView, visibility); 2035 } 2036 2037 @Override 2038 public void onWindowFocusChanged(boolean hasWindowFocus) { 2039 mProvider.getViewDelegate().onWindowFocusChanged(hasWindowFocus); 2040 super.onWindowFocusChanged(hasWindowFocus); 2041 } 2042 2043 @Override 2044 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 2045 mProvider.getViewDelegate().onFocusChanged(focused, direction, previouslyFocusedRect); 2046 super.onFocusChanged(focused, direction, previouslyFocusedRect); 2047 } 2048 2049 /** @hide */ 2050 @Override 2051 protected boolean setFrame(int left, int top, int right, int bottom) { 2052 return mProvider.getViewDelegate().setFrame(left, top, right, bottom); 2053 } 2054 2055 @Override 2056 protected void onSizeChanged(int w, int h, int ow, int oh) { 2057 super.onSizeChanged(w, h, ow, oh); 2058 mProvider.getViewDelegate().onSizeChanged(w, h, ow, oh); 2059 } 2060 2061 @Override 2062 protected void onScrollChanged(int l, int t, int oldl, int oldt) { 2063 super.onScrollChanged(l, t, oldl, oldt); 2064 mProvider.getViewDelegate().onScrollChanged(l, t, oldl, oldt); 2065 } 2066 2067 @Override 2068 public boolean dispatchKeyEvent(KeyEvent event) { 2069 return mProvider.getViewDelegate().dispatchKeyEvent(event); 2070 } 2071 2072 @Override 2073 public boolean requestFocus(int direction, Rect previouslyFocusedRect) { 2074 return mProvider.getViewDelegate().requestFocus(direction, previouslyFocusedRect); 2075 } 2076 2077 @Deprecated 2078 @Override 2079 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 2080 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 2081 mProvider.getViewDelegate().onMeasure(widthMeasureSpec, heightMeasureSpec); 2082 } 2083 2084 @Override 2085 public boolean requestChildRectangleOnScreen(View child, Rect rect, boolean immediate) { 2086 return mProvider.getViewDelegate().requestChildRectangleOnScreen(child, rect, immediate); 2087 } 2088 2089 @Override 2090 public void setBackgroundColor(int color) { 2091 mProvider.getViewDelegate().setBackgroundColor(color); 2092 } 2093 2094 @Override 2095 public void setLayerType(int layerType, Paint paint) { 2096 super.setLayerType(layerType, paint); 2097 mProvider.getViewDelegate().setLayerType(layerType, paint); 2098 } 2099} 2100