WebView.java revision 6b91b45e3151bf07d761939694c18158e4eed4fe
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 com.android.internal.R; 20 21import android.annotation.Widget; 22import android.app.AlertDialog; 23import android.content.BroadcastReceiver; 24import android.content.ClipboardManager; 25import android.content.Context; 26import android.content.DialogInterface; 27import android.content.DialogInterface.OnCancelListener; 28import android.content.Intent; 29import android.content.IntentFilter; 30import android.content.pm.PackageInfo; 31import android.content.pm.PackageManager; 32import android.content.res.Configuration; 33import android.content.res.Resources; 34import android.database.DataSetObserver; 35import android.graphics.Bitmap; 36import android.graphics.BitmapFactory; 37import android.graphics.BitmapShader; 38import android.graphics.Canvas; 39import android.graphics.Color; 40import android.graphics.CornerPathEffect; 41import android.graphics.DrawFilter; 42import android.graphics.Paint; 43import android.graphics.PaintFlagsDrawFilter; 44import android.graphics.Picture; 45import android.graphics.Point; 46import android.graphics.Rect; 47import android.graphics.RectF; 48import android.graphics.Region; 49import android.graphics.Shader; 50import android.graphics.drawable.Drawable; 51import android.net.Proxy; 52import android.net.ProxyProperties; 53import android.net.Uri; 54import android.net.http.SslCertificate; 55import android.os.AsyncTask; 56import android.os.Bundle; 57import android.os.Handler; 58import android.os.Message; 59import android.provider.Settings; 60import android.speech.tts.TextToSpeech; 61import android.text.Selection; 62import android.text.Spannable; 63import android.util.AttributeSet; 64import android.util.EventLog; 65import android.util.Log; 66import android.view.Gravity; 67import android.view.KeyCharacterMap; 68import android.view.KeyEvent; 69import android.view.LayoutInflater; 70import android.view.MotionEvent; 71import android.view.ScaleGestureDetector; 72import android.view.SoundEffectConstants; 73import android.view.VelocityTracker; 74import android.view.View; 75import android.view.ViewConfiguration; 76import android.view.ViewGroup; 77import android.view.ViewParent; 78import android.view.ViewTreeObserver; 79import android.view.accessibility.AccessibilityManager; 80import android.view.inputmethod.EditorInfo; 81import android.view.inputmethod.InputConnection; 82import android.view.inputmethod.InputMethodManager; 83import android.webkit.WebTextView.AutoCompleteAdapter; 84import android.webkit.WebViewCore.EventHub; 85import android.webkit.WebViewCore.TouchEventData; 86import android.webkit.WebViewCore.TouchHighlightData; 87import android.widget.AbsoluteLayout; 88import android.widget.Adapter; 89import android.widget.AdapterView; 90import android.widget.AdapterView.OnItemClickListener; 91import android.widget.ArrayAdapter; 92import android.widget.CheckedTextView; 93import android.widget.EdgeGlow; 94import android.widget.LinearLayout; 95import android.widget.ListView; 96import android.widget.OverScroller; 97import android.widget.Toast; 98 99import java.io.File; 100import java.io.FileInputStream; 101import java.io.FileNotFoundException; 102import java.io.FileOutputStream; 103import java.net.URLDecoder; 104import java.util.ArrayList; 105import java.util.HashMap; 106import java.util.HashSet; 107import java.util.List; 108import java.util.Map; 109import java.util.Set; 110import java.util.regex.Matcher; 111import java.util.regex.Pattern; 112 113import junit.framework.Assert; 114 115/** 116 * <p>A View that displays web pages. This class is the basis upon which you 117 * can roll your own web browser or simply display some online content within your Activity. 118 * It uses the WebKit rendering engine to display 119 * web pages and includes methods to navigate forward and backward 120 * through a history, zoom in and out, perform text searches and more.</p> 121 * <p>To enable the built-in zoom, set 122 * {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)} 123 * (introduced in API version 3). 124 * <p>Note that, in order for your Activity to access the Internet and load web pages 125 * in a WebView, you must add the {@code INTERNET} permissions to your 126 * Android Manifest file:</p> 127 * <pre><uses-permission android:name="android.permission.INTERNET" /></pre> 128 * 129 * <p>This must be a child of the <a 130 * href="{@docRoot}guide/topics/manifest/manifest-element.html">{@code <manifest>}</a> 131 * element.</p> 132 * 133 * <p>See the <a href="{@docRoot}resources/tutorials/views/hello-webview.html">Web View 134 * tutorial</a>.</p> 135 * 136 * <h3>Basic usage</h3> 137 * 138 * <p>By default, a WebView provides no browser-like widgets, does not 139 * enable JavaScript and web page errors are ignored. If your goal is only 140 * to display some HTML as a part of your UI, this is probably fine; 141 * the user won't need to interact with the web page beyond reading 142 * it, and the web page won't need to interact with the user. If you 143 * actually want a full-blown web browser, then you probably want to 144 * invoke the Browser application with a URL Intent rather than show it 145 * with a WebView. For example: 146 * <pre> 147 * Uri uri = Uri.parse("http://www.example.com"); 148 * Intent intent = new Intent(Intent.ACTION_VIEW, uri); 149 * startActivity(intent); 150 * </pre> 151 * <p>See {@link android.content.Intent} for more information.</p> 152 * 153 * <p>To provide a WebView in your own Activity, include a {@code <WebView>} in your layout, 154 * or set the entire Activity window as a WebView during {@link 155 * android.app.Activity#onCreate(Bundle) onCreate()}:</p> 156 * <pre class="prettyprint"> 157 * WebView webview = new WebView(this); 158 * setContentView(webview); 159 * </pre> 160 * 161 * <p>Then load the desired web page:</p> 162 * <pre> 163 * // Simplest usage: note that an exception will NOT be thrown 164 * // if there is an error loading this page (see below). 165 * webview.loadUrl("http://slashdot.org/"); 166 * 167 * // OR, you can also load from an HTML string: 168 * String summary = "<html><body>You scored <b>192</b> points.</body></html>"; 169 * webview.loadData(summary, "text/html", "utf-8"); 170 * // ... although note that there are restrictions on what this HTML can do. 171 * // See the JavaDocs for {@link #loadData(String,String,String) loadData()} and {@link 172 * #loadDataWithBaseURL(String,String,String,String,String) loadDataWithBaseURL()} for more info. 173 * </pre> 174 * 175 * <p>A WebView has several customization points where you can add your 176 * own behavior. These are:</p> 177 * 178 * <ul> 179 * <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass. 180 * This class is called when something that might impact a 181 * browser UI happens, for instance, progress updates and 182 * JavaScript alerts are sent here (see <a 183 * href="{@docRoot}guide/developing/debug-tasks.html#DebuggingWebPages">Debugging Tasks</a>). 184 * </li> 185 * <li>Creating and setting a {@link android.webkit.WebViewClient} subclass. 186 * It will be called when things happen that impact the 187 * rendering of the content, eg, errors or form submissions. You 188 * can also intercept URL loading here (via {@link 189 * android.webkit.WebViewClient#shouldOverrideUrlLoading(WebView,String) 190 * shouldOverrideUrlLoading()}).</li> 191 * <li>Modifying the {@link android.webkit.WebSettings}, such as 192 * enabling JavaScript with {@link android.webkit.WebSettings#setJavaScriptEnabled(boolean) 193 * setJavaScriptEnabled()}. </li> 194 * <li>Adding JavaScript-to-Java interfaces with the {@link 195 * android.webkit.WebView#addJavascriptInterface} method. 196 * This lets you bind Java objects into the WebView so they can be 197 * controlled from the web pages JavaScript.</li> 198 * </ul> 199 * 200 * <p>Here's a more complicated example, showing error handling, 201 * settings, and progress notification:</p> 202 * 203 * <pre class="prettyprint"> 204 * // Let's display the progress in the activity title bar, like the 205 * // browser app does. 206 * getWindow().requestFeature(Window.FEATURE_PROGRESS); 207 * 208 * webview.getSettings().setJavaScriptEnabled(true); 209 * 210 * final Activity activity = this; 211 * webview.setWebChromeClient(new WebChromeClient() { 212 * public void onProgressChanged(WebView view, int progress) { 213 * // Activities and WebViews measure progress with different scales. 214 * // The progress meter will automatically disappear when we reach 100% 215 * activity.setProgress(progress * 1000); 216 * } 217 * }); 218 * webview.setWebViewClient(new WebViewClient() { 219 * public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { 220 * Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); 221 * } 222 * }); 223 * 224 * webview.loadUrl("http://slashdot.org/"); 225 * </pre> 226 * 227 * <h3>Cookie and window management</h3> 228 * 229 * <p>For obvious security reasons, your application has its own 230 * cache, cookie store etc.—it does not share the Browser 231 * application's data. Cookies are managed on a separate thread, so 232 * operations like index building don't block the UI 233 * thread. Follow the instructions in {@link android.webkit.CookieSyncManager} 234 * if you want to use cookies in your application. 235 * </p> 236 * 237 * <p>By default, requests by the HTML to open new windows are 238 * ignored. This is true whether they be opened by JavaScript or by 239 * the target attribute on a link. You can customize your 240 * {@link WebChromeClient} to provide your own behaviour for opening multiple windows, 241 * and render them in whatever manner you want.</p> 242 * 243 * <p>The standard behavior for an Activity is to be destroyed and 244 * recreated when the device orientation or any other configuration changes. This will cause 245 * the WebView to reload the current page. If you don't want that, you 246 * can set your Activity to handle the {@code orientation} and {@code keyboardHidden} 247 * changes, and then just leave the WebView alone. It'll automatically 248 * re-orient itself as appropriate. Read <a 249 * href="{@docRoot}guide/topics/resources/runtime-changes.html">Handling Runtime Changes</a> for 250 * more information about how to handle configuration changes during runtime.</p> 251 * 252 * 253 * <h3>Building web pages to support different screen densities</h3> 254 * 255 * <p>The screen density of a device is based on the screen resolution. A screen with low density 256 * has fewer available pixels per inch, where a screen with high density 257 * has more — sometimes significantly more — pixels per inch. The density of a 258 * screen is important because, other things being equal, a UI element (such as a button) whose 259 * height and width are defined in terms of screen pixels will appear larger on the lower density 260 * screen and smaller on the higher density screen. 261 * For simplicity, Android collapses all actual screen densities into three generalized densities: 262 * high, medium, and low.</p> 263 * <p>By default, WebView scales a web page so that it is drawn at a size that matches the default 264 * appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen 265 * (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels 266 * are bigger). 267 * Starting with API Level 5 (Android 2.0), WebView supports DOM, CSS, and meta tag features to help 268 * you (as a web developer) target screens with different screen densities.</p> 269 * <p>Here's a summary of the features you can use to handle different screen densities:</p> 270 * <ul> 271 * <li>The {@code window.devicePixelRatio} DOM property. The value of this property specifies the 272 * default scaling factor used for the current device. For example, if the value of {@code 273 * window.devicePixelRatio} is "1.0", then the device is considered a medium density (mdpi) device 274 * and default scaling is not applied to the web page; if the value is "1.5", then the device is 275 * considered a high density device (hdpi) and the page content is scaled 1.5x; if the 276 * value is "0.75", then the device is considered a low density device (ldpi) and the content is 277 * scaled 0.75x. However, if you specify the {@code "target-densitydpi"} meta property 278 * (discussed below), then you can stop this default scaling behavior.</li> 279 * <li>The {@code -webkit-device-pixel-ratio} CSS media query. Use this to specify the screen 280 * densities for which this style sheet is to be used. The corresponding value should be either 281 * "0.75", "1", or "1.5", to indicate that the styles are for devices with low density, medium 282 * density, or high density screens, respectively. For example: 283 * <pre> 284 * <link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /></pre> 285 * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5, 286 * which is the high density pixel ratio.</p> 287 * </li> 288 * <li>The {@code target-densitydpi} property for the {@code viewport} meta tag. You can use 289 * this to specify the target density for which the web page is designed, using the following 290 * values: 291 * <ul> 292 * <li>{@code device-dpi} - Use the device's native dpi as the target dpi. Default scaling never 293 * occurs.</li> 294 * <li>{@code high-dpi} - Use hdpi as the target dpi. Medium and low density screens scale down 295 * as appropriate.</li> 296 * <li>{@code medium-dpi} - Use mdpi as the target dpi. High density screens scale up and 297 * low density screens scale down. This is also the default behavior.</li> 298 * <li>{@code low-dpi} - Use ldpi as the target dpi. Medium and high density screens scale up 299 * as appropriate.</li> 300 * <li><em>{@code <value>}</em> - Specify a dpi value to use as the target dpi (accepted 301 * values are 70-400).</li> 302 * </ul> 303 * <p>Here's an example meta tag to specify the target density:</p> 304 * <pre><meta name="viewport" content="target-densitydpi=device-dpi" /></pre></li> 305 * </ul> 306 * <p>If you want to modify your web page for different densities, by using the {@code 307 * -webkit-device-pixel-ratio} CSS media query and/or the {@code 308 * window.devicePixelRatio} DOM property, then you should set the {@code target-densitydpi} meta 309 * property to {@code device-dpi}. This stops Android from performing scaling in your web page and 310 * allows you to make the necessary adjustments for each density via CSS and JavaScript.</p> 311 * 312 * 313 */ 314@Widget 315public class WebView extends AbsoluteLayout 316 implements ViewTreeObserver.OnGlobalFocusChangeListener, 317 ViewGroup.OnHierarchyChangeListener { 318 319 private class InnerGlobalLayoutListener implements ViewTreeObserver.OnGlobalLayoutListener { 320 public void onGlobalLayout() { 321 if (isShown()) { 322 setGLRectViewport(); 323 } 324 } 325 } 326 327 private class InnerScrollChangedListener implements ViewTreeObserver.OnScrollChangedListener { 328 public void onScrollChanged() { 329 if (isShown()) { 330 setGLRectViewport(); 331 } 332 } 333 } 334 335 // The listener to capture global layout change event. 336 private InnerGlobalLayoutListener mGlobalLayoutListener = null; 337 338 // The listener to capture scroll event. 339 private InnerScrollChangedListener mScrollChangedListener = null; 340 341 // if AUTO_REDRAW_HACK is true, then the CALL key will toggle redrawing 342 // the screen all-the-time. Good for profiling our drawing code 343 static private final boolean AUTO_REDRAW_HACK = false; 344 // true means redraw the screen all-the-time. Only with AUTO_REDRAW_HACK 345 private boolean mAutoRedraw; 346 347 // Reference to the AlertDialog displayed by InvokeListBox. 348 // It's used to dismiss the dialog in destroy if not done before. 349 private AlertDialog mListBoxDialog = null; 350 351 static final String LOGTAG = "webview"; 352 353 private ZoomManager mZoomManager; 354 355 private Rect mGLRectViewport; 356 357 /** 358 * Transportation object for returning WebView across thread boundaries. 359 */ 360 public class WebViewTransport { 361 private WebView mWebview; 362 363 /** 364 * Set the WebView to the transportation object. 365 * @param webview The WebView to transport. 366 */ 367 public synchronized void setWebView(WebView webview) { 368 mWebview = webview; 369 } 370 371 /** 372 * Return the WebView object. 373 * @return WebView The transported WebView object. 374 */ 375 public synchronized WebView getWebView() { 376 return mWebview; 377 } 378 } 379 380 // A final CallbackProxy shared by WebViewCore and BrowserFrame. 381 private final CallbackProxy mCallbackProxy; 382 383 private final WebViewDatabase mDatabase; 384 385 // SSL certificate for the main top-level page (if secure) 386 private SslCertificate mCertificate; 387 388 // Native WebView pointer that is 0 until the native object has been 389 // created. 390 private int mNativeClass; 391 // This would be final but it needs to be set to null when the WebView is 392 // destroyed. 393 private WebViewCore mWebViewCore; 394 // Handler for dispatching UI messages. 395 /* package */ final Handler mPrivateHandler = new PrivateHandler(); 396 private WebTextView mWebTextView; 397 // Used to ignore changes to webkit text that arrives to the UI side after 398 // more key events. 399 private int mTextGeneration; 400 401 /* package */ void incrementTextGeneration() { mTextGeneration++; } 402 403 // Used by WebViewCore to create child views. 404 /* package */ final ViewManager mViewManager; 405 406 // Used to display in full screen mode 407 PluginFullScreenHolder mFullScreenHolder; 408 409 /** 410 * Position of the last touch event. 411 */ 412 private float mLastTouchX; 413 private float mLastTouchY; 414 415 /** 416 * Time of the last touch event. 417 */ 418 private long mLastTouchTime; 419 420 /** 421 * Time of the last time sending touch event to WebViewCore 422 */ 423 private long mLastSentTouchTime; 424 425 /** 426 * The minimum elapsed time before sending another ACTION_MOVE event to 427 * WebViewCore. This really should be tuned for each type of the devices. 428 * For example in Google Map api test case, it takes Dream device at least 429 * 150ms to do a full cycle in the WebViewCore by processing a touch event, 430 * triggering the layout and drawing the picture. While the same process 431 * takes 60+ms on the current high speed device. If we make 432 * TOUCH_SENT_INTERVAL too small, there will be multiple touch events sent 433 * to WebViewCore queue and the real layout and draw events will be pushed 434 * to further, which slows down the refresh rate. Choose 50 to favor the 435 * current high speed devices. For Dream like devices, 100 is a better 436 * choice. Maybe make this in the buildspec later. 437 * (Update 12/14/2010: changed to 0 since current device should be able to 438 * handle the raw events and Map team voted to have the raw events too. 439 */ 440 private static final int TOUCH_SENT_INTERVAL = 0; 441 private int mCurrentTouchInterval = TOUCH_SENT_INTERVAL; 442 443 /** 444 * Helper class to get velocity for fling 445 */ 446 VelocityTracker mVelocityTracker; 447 private int mMaximumFling; 448 private float mLastVelocity; 449 private float mLastVelX; 450 private float mLastVelY; 451 452 // The id of the native layer being scrolled. 453 private int mScrollingLayer; 454 private Rect mScrollingLayerRect = new Rect(); 455 456 // only trigger accelerated fling if the new velocity is at least 457 // MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION times of the previous velocity 458 private static final float MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION = 0.2f; 459 460 /** 461 * Touch mode 462 */ 463 private int mTouchMode = TOUCH_DONE_MODE; 464 private static final int TOUCH_INIT_MODE = 1; 465 private static final int TOUCH_DRAG_START_MODE = 2; 466 private static final int TOUCH_DRAG_MODE = 3; 467 private static final int TOUCH_SHORTPRESS_START_MODE = 4; 468 private static final int TOUCH_SHORTPRESS_MODE = 5; 469 private static final int TOUCH_DOUBLE_TAP_MODE = 6; 470 private static final int TOUCH_DONE_MODE = 7; 471 private static final int TOUCH_PINCH_DRAG = 8; 472 private static final int TOUCH_DRAG_LAYER_MODE = 9; 473 474 // Whether to forward the touch events to WebCore 475 private boolean mForwardTouchEvents = false; 476 477 // Whether to prevent default during touch. The initial value depends on 478 // mForwardTouchEvents. If WebCore wants all the touch events, it says yes 479 // for touch down. Otherwise UI will wait for the answer of the first 480 // confirmed move before taking over the control. 481 private static final int PREVENT_DEFAULT_NO = 0; 482 private static final int PREVENT_DEFAULT_MAYBE_YES = 1; 483 private static final int PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN = 2; 484 private static final int PREVENT_DEFAULT_YES = 3; 485 private static final int PREVENT_DEFAULT_IGNORE = 4; 486 private int mPreventDefault = PREVENT_DEFAULT_IGNORE; 487 488 // true when the touch movement exceeds the slop 489 private boolean mConfirmMove; 490 491 // if true, touch events will be first processed by WebCore, if prevent 492 // default is not set, the UI will continue handle them. 493 private boolean mDeferTouchProcess; 494 495 // if true, multi-touch events will be passed to webkit directly before UI 496 private boolean mDeferMultitouch = false; 497 498 // to avoid interfering with the current touch events, track them 499 // separately. Currently no snapping or fling in the deferred process mode 500 private int mDeferTouchMode = TOUCH_DONE_MODE; 501 private float mLastDeferTouchX; 502 private float mLastDeferTouchY; 503 504 // To keep track of whether the current drag was initiated by a WebTextView, 505 // so that we know not to hide the cursor 506 boolean mDragFromTextInput; 507 508 // Whether or not to draw the cursor ring. 509 private boolean mDrawCursorRing = true; 510 511 // true if onPause has been called (and not onResume) 512 private boolean mIsPaused; 513 514 private HitTestResult mInitialHitTestResult; 515 516 /** 517 * Customizable constant 518 */ 519 // pre-computed square of ViewConfiguration.getScaledTouchSlop() 520 private int mTouchSlopSquare; 521 // pre-computed square of ViewConfiguration.getScaledDoubleTapSlop() 522 private int mDoubleTapSlopSquare; 523 // pre-computed density adjusted navigation slop 524 private int mNavSlop; 525 // This should be ViewConfiguration.getTapTimeout() 526 // But system time out is 100ms, which is too short for the browser. 527 // In the browser, if it switches out of tap too soon, jump tap won't work. 528 private static final int TAP_TIMEOUT = 200; 529 // This should be ViewConfiguration.getLongPressTimeout() 530 // But system time out is 500ms, which is too short for the browser. 531 // With a short timeout, it's difficult to treat trigger a short press. 532 private static final int LONG_PRESS_TIMEOUT = 1000; 533 // needed to avoid flinging after a pause of no movement 534 private static final int MIN_FLING_TIME = 250; 535 // draw unfiltered after drag is held without movement 536 private static final int MOTIONLESS_TIME = 100; 537 // The amount of content to overlap between two screens when going through 538 // pages with the space bar, in pixels. 539 private static final int PAGE_SCROLL_OVERLAP = 24; 540 541 /** 542 * These prevent calling requestLayout if either dimension is fixed. This 543 * depends on the layout parameters and the measure specs. 544 */ 545 boolean mWidthCanMeasure; 546 boolean mHeightCanMeasure; 547 548 // Remember the last dimensions we sent to the native side so we can avoid 549 // sending the same dimensions more than once. 550 int mLastWidthSent; 551 int mLastHeightSent; 552 553 private int mContentWidth; // cache of value from WebViewCore 554 private int mContentHeight; // cache of value from WebViewCore 555 556 // Need to have the separate control for horizontal and vertical scrollbar 557 // style than the View's single scrollbar style 558 private boolean mOverlayHorizontalScrollbar = true; 559 private boolean mOverlayVerticalScrollbar = false; 560 561 // our standard speed. this way small distances will be traversed in less 562 // time than large distances, but we cap the duration, so that very large 563 // distances won't take too long to get there. 564 private static final int STD_SPEED = 480; // pixels per second 565 // time for the longest scroll animation 566 private static final int MAX_DURATION = 750; // milliseconds 567 private static final int SLIDE_TITLE_DURATION = 500; // milliseconds 568 569 // Used by OverScrollGlow 570 OverScroller mScroller; 571 572 private boolean mInOverScrollMode = false; 573 private static Paint mOverScrollBackground; 574 private static Paint mOverScrollBorder; 575 576 private boolean mWrapContent; 577 private static final int MOTIONLESS_FALSE = 0; 578 private static final int MOTIONLESS_PENDING = 1; 579 private static final int MOTIONLESS_TRUE = 2; 580 private static final int MOTIONLESS_IGNORE = 3; 581 private int mHeldMotionless; 582 583 // An instance for injecting accessibility in WebViews with disabled 584 // JavaScript or ones for which no accessibility script exists 585 private AccessibilityInjector mAccessibilityInjector; 586 587 // flag indicating if accessibility script is injected so we 588 // know to handle Shift and arrows natively first 589 private boolean mAccessibilityScriptInjected; 590 591 // the color used to highlight the touch rectangles 592 private static final int mHightlightColor = 0x33000000; 593 // the round corner for the highlight path 594 private static final float TOUCH_HIGHLIGHT_ARC = 5.0f; 595 // the region indicating where the user touched on the screen 596 private Region mTouchHighlightRegion = new Region(); 597 // the paint for the touch highlight 598 private Paint mTouchHightlightPaint; 599 // debug only 600 private static final boolean DEBUG_TOUCH_HIGHLIGHT = true; 601 private static final int TOUCH_HIGHLIGHT_ELAPSE_TIME = 2000; 602 private Paint mTouchCrossHairColor; 603 private int mTouchHighlightX; 604 private int mTouchHighlightY; 605 606 /* 607 * Private message ids 608 */ 609 private static final int REMEMBER_PASSWORD = 1; 610 private static final int NEVER_REMEMBER_PASSWORD = 2; 611 private static final int SWITCH_TO_SHORTPRESS = 3; 612 private static final int SWITCH_TO_LONGPRESS = 4; 613 private static final int RELEASE_SINGLE_TAP = 5; 614 private static final int REQUEST_FORM_DATA = 6; 615 private static final int RESUME_WEBCORE_PRIORITY = 7; 616 private static final int DRAG_HELD_MOTIONLESS = 8; 617 private static final int AWAKEN_SCROLL_BARS = 9; 618 private static final int PREVENT_DEFAULT_TIMEOUT = 10; 619 private static final int SCROLL_SELECT_TEXT = 11; 620 621 622 private static final int FIRST_PRIVATE_MSG_ID = REMEMBER_PASSWORD; 623 private static final int LAST_PRIVATE_MSG_ID = SCROLL_SELECT_TEXT; 624 625 /* 626 * Package message ids 627 */ 628 //! arg1=x, arg2=y 629 static final int SCROLL_TO_MSG_ID = 101; 630 static final int SCROLL_BY_MSG_ID = 102; 631 //! arg1=x, arg2=y 632 static final int SPAWN_SCROLL_TO_MSG_ID = 103; 633 //! arg1=x, arg2=y 634 static final int SYNC_SCROLL_TO_MSG_ID = 104; 635 static final int NEW_PICTURE_MSG_ID = 105; 636 static final int UPDATE_TEXT_ENTRY_MSG_ID = 106; 637 static final int WEBCORE_INITIALIZED_MSG_ID = 107; 638 static final int UPDATE_TEXTFIELD_TEXT_MSG_ID = 108; 639 static final int UPDATE_ZOOM_RANGE = 109; 640 static final int UNHANDLED_NAV_KEY = 110; 641 static final int CLEAR_TEXT_ENTRY = 111; 642 static final int UPDATE_TEXT_SELECTION_MSG_ID = 112; 643 static final int SHOW_RECT_MSG_ID = 113; 644 static final int LONG_PRESS_CENTER = 114; 645 static final int PREVENT_TOUCH_ID = 115; 646 static final int WEBCORE_NEED_TOUCH_EVENTS = 116; 647 // obj=Rect in doc coordinates 648 static final int INVAL_RECT_MSG_ID = 117; 649 static final int REQUEST_KEYBOARD = 118; 650 static final int DO_MOTION_UP = 119; 651 static final int SHOW_FULLSCREEN = 120; 652 static final int HIDE_FULLSCREEN = 121; 653 static final int DOM_FOCUS_CHANGED = 122; 654 static final int REPLACE_BASE_CONTENT = 123; 655 static final int FORM_DID_BLUR = 124; 656 static final int RETURN_LABEL = 125; 657 static final int FIND_AGAIN = 126; 658 static final int CENTER_FIT_RECT = 127; 659 static final int REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID = 128; 660 static final int SET_SCROLLBAR_MODES = 129; 661 static final int SELECTION_STRING_CHANGED = 130; 662 static final int SET_TOUCH_HIGHLIGHT_RECTS = 131; 663 static final int SAVE_WEBARCHIVE_FINISHED = 132; 664 665 static final int SET_AUTOFILLABLE = 133; 666 static final int AUTOFILL_COMPLETE = 134; 667 668 private static final int FIRST_PACKAGE_MSG_ID = SCROLL_TO_MSG_ID; 669 private static final int LAST_PACKAGE_MSG_ID = SET_TOUCH_HIGHLIGHT_RECTS; 670 671 static final String[] HandlerPrivateDebugString = { 672 "REMEMBER_PASSWORD", // = 1; 673 "NEVER_REMEMBER_PASSWORD", // = 2; 674 "SWITCH_TO_SHORTPRESS", // = 3; 675 "SWITCH_TO_LONGPRESS", // = 4; 676 "RELEASE_SINGLE_TAP", // = 5; 677 "REQUEST_FORM_DATA", // = 6; 678 "RESUME_WEBCORE_PRIORITY", // = 7; 679 "DRAG_HELD_MOTIONLESS", // = 8; 680 "AWAKEN_SCROLL_BARS", // = 9; 681 "PREVENT_DEFAULT_TIMEOUT", // = 10; 682 "SCROLL_SELECT_TEXT" // = 11; 683 }; 684 685 static final String[] HandlerPackageDebugString = { 686 "SCROLL_TO_MSG_ID", // = 101; 687 "SCROLL_BY_MSG_ID", // = 102; 688 "SPAWN_SCROLL_TO_MSG_ID", // = 103; 689 "SYNC_SCROLL_TO_MSG_ID", // = 104; 690 "NEW_PICTURE_MSG_ID", // = 105; 691 "UPDATE_TEXT_ENTRY_MSG_ID", // = 106; 692 "WEBCORE_INITIALIZED_MSG_ID", // = 107; 693 "UPDATE_TEXTFIELD_TEXT_MSG_ID", // = 108; 694 "UPDATE_ZOOM_RANGE", // = 109; 695 "UNHANDLED_NAV_KEY", // = 110; 696 "CLEAR_TEXT_ENTRY", // = 111; 697 "UPDATE_TEXT_SELECTION_MSG_ID", // = 112; 698 "SHOW_RECT_MSG_ID", // = 113; 699 "LONG_PRESS_CENTER", // = 114; 700 "PREVENT_TOUCH_ID", // = 115; 701 "WEBCORE_NEED_TOUCH_EVENTS", // = 116; 702 "INVAL_RECT_MSG_ID", // = 117; 703 "REQUEST_KEYBOARD", // = 118; 704 "DO_MOTION_UP", // = 119; 705 "SHOW_FULLSCREEN", // = 120; 706 "HIDE_FULLSCREEN", // = 121; 707 "DOM_FOCUS_CHANGED", // = 122; 708 "REPLACE_BASE_CONTENT", // = 123; 709 "FORM_DID_BLUR", // = 124; 710 "RETURN_LABEL", // = 125; 711 "FIND_AGAIN", // = 126; 712 "CENTER_FIT_RECT", // = 127; 713 "REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID", // = 128; 714 "SET_SCROLLBAR_MODES", // = 129; 715 "SELECTION_STRING_CHANGED", // = 130; 716 "SET_TOUCH_HIGHLIGHT_RECTS", // = 131; 717 "SAVE_WEBARCHIVE_FINISHED", // = 132; 718 "SET_AUTOFILLABLE", // = 133; 719 "AUTOFILL_COMPLETE" // = 134; 720 }; 721 722 // If the site doesn't use the viewport meta tag to specify the viewport, 723 // use DEFAULT_VIEWPORT_WIDTH as the default viewport width 724 static final int DEFAULT_VIEWPORT_WIDTH = 980; 725 726 // normally we try to fit the content to the minimum preferred width 727 // calculated by the Webkit. To avoid the bad behavior when some site's 728 // minimum preferred width keeps growing when changing the viewport width or 729 // the minimum preferred width is huge, an upper limit is needed. 730 static int sMaxViewportWidth = DEFAULT_VIEWPORT_WIDTH; 731 732 // initial scale in percent. 0 means using default. 733 private int mInitialScaleInPercent = 0; 734 735 private boolean mUserScroll = false; 736 737 private int mSnapScrollMode = SNAP_NONE; 738 private static final int SNAP_NONE = 0; 739 private static final int SNAP_LOCK = 1; // not a separate state 740 private static final int SNAP_X = 2; // may be combined with SNAP_LOCK 741 private static final int SNAP_Y = 4; // may be combined with SNAP_LOCK 742 private boolean mSnapPositive; 743 744 // keep these in sync with their counterparts in WebView.cpp 745 private static final int DRAW_EXTRAS_NONE = 0; 746 private static final int DRAW_EXTRAS_FIND = 1; 747 private static final int DRAW_EXTRAS_SELECTION = 2; 748 private static final int DRAW_EXTRAS_CURSOR_RING = 3; 749 750 // keep this in sync with WebCore:ScrollbarMode in WebKit 751 private static final int SCROLLBAR_AUTO = 0; 752 private static final int SCROLLBAR_ALWAYSOFF = 1; 753 // as we auto fade scrollbar, this is ignored. 754 private static final int SCROLLBAR_ALWAYSON = 2; 755 private int mHorizontalScrollBarMode = SCROLLBAR_AUTO; 756 private int mVerticalScrollBarMode = SCROLLBAR_AUTO; 757 758 // constants for determining script injection strategy 759 private static final int ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED = -1; 760 private static final int ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT = 0; 761 private static final int ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED = 1; 762 763 // the alias via which accessibility JavaScript interface is exposed 764 private static final String ALIAS_ACCESSIBILITY_JS_INTERFACE = "accessibility"; 765 766 // JavaScript to inject the script chooser which will 767 // pick the right script for the current URL 768 private static final String ACCESSIBILITY_SCRIPT_CHOOSER_JAVASCRIPT = 769 "javascript:(function() {" + 770 " var chooser = document.createElement('script');" + 771 " chooser.type = 'text/javascript';" + 772 " chooser.src = 'https://ssl.gstatic.com/accessibility/javascript/android/AndroidScriptChooser.user.js';" + 773 " document.getElementsByTagName('head')[0].appendChild(chooser);" + 774 " })();"; 775 776 // Regular expression that matches the "axs" URL parameter. 777 // The value of 0 means the accessibility script is opted out 778 // The value of 1 means the accessibility script is already injected 779 private static final String PATTERN_MATCH_AXS_URL_PARAMETER = "(\\?axs=(0|1))|(&axs=(0|1))"; 780 781 // variable to cache the above pattern in case accessibility is enabled. 782 private Pattern mMatchAxsUrlParameterPattern; 783 784 /** 785 * Max distance to overscroll by in pixels. 786 * This how far content can be pulled beyond its normal bounds by the user. 787 */ 788 private int mOverscrollDistance; 789 790 /** 791 * Max distance to overfling by in pixels. 792 * This is how far flinged content can move beyond the end of its normal bounds. 793 */ 794 private int mOverflingDistance; 795 796 private OverScrollGlow mOverScrollGlow; 797 798 // Used to match key downs and key ups 799 private boolean mGotKeyDown; 800 801 /* package */ static boolean mLogEvent = true; 802 803 // for event log 804 private long mLastTouchUpTime = 0; 805 806 private WebViewCore.AutoFillData mAutoFillData; 807 808 /** 809 * URI scheme for telephone number 810 */ 811 public static final String SCHEME_TEL = "tel:"; 812 /** 813 * URI scheme for email address 814 */ 815 public static final String SCHEME_MAILTO = "mailto:"; 816 /** 817 * URI scheme for map address 818 */ 819 public static final String SCHEME_GEO = "geo:0,0?q="; 820 821 private int mBackgroundColor = Color.WHITE; 822 823 private static final long SELECT_SCROLL_INTERVAL = 1000 / 60; // 60 / second 824 private int mAutoScrollX = 0; 825 private int mAutoScrollY = 0; 826 private boolean mSentAutoScrollMessage = false; 827 828 // Used to notify listeners of a new picture. 829 private PictureListener mPictureListener; 830 /** 831 * Interface to listen for new pictures as they change. 832 */ 833 public interface PictureListener { 834 /** 835 * Notify the listener that the picture has changed. 836 * @param view The WebView that owns the picture. 837 * @param picture The new picture. 838 */ 839 public void onNewPicture(WebView view, Picture picture); 840 } 841 842 // FIXME: Want to make this public, but need to change the API file. 843 public /*static*/ class HitTestResult { 844 /** 845 * Default HitTestResult, where the target is unknown 846 */ 847 public static final int UNKNOWN_TYPE = 0; 848 /** 849 * HitTestResult for hitting a HTML::a tag 850 */ 851 public static final int ANCHOR_TYPE = 1; 852 /** 853 * HitTestResult for hitting a phone number 854 */ 855 public static final int PHONE_TYPE = 2; 856 /** 857 * HitTestResult for hitting a map address 858 */ 859 public static final int GEO_TYPE = 3; 860 /** 861 * HitTestResult for hitting an email address 862 */ 863 public static final int EMAIL_TYPE = 4; 864 /** 865 * HitTestResult for hitting an HTML::img tag 866 */ 867 public static final int IMAGE_TYPE = 5; 868 /** 869 * HitTestResult for hitting a HTML::a tag which contains HTML::img 870 */ 871 public static final int IMAGE_ANCHOR_TYPE = 6; 872 /** 873 * HitTestResult for hitting a HTML::a tag with src=http 874 */ 875 public static final int SRC_ANCHOR_TYPE = 7; 876 /** 877 * HitTestResult for hitting a HTML::a tag with src=http + HTML::img 878 */ 879 public static final int SRC_IMAGE_ANCHOR_TYPE = 8; 880 /** 881 * HitTestResult for hitting an edit text area 882 */ 883 public static final int EDIT_TEXT_TYPE = 9; 884 885 private int mType; 886 private String mExtra; 887 888 HitTestResult() { 889 mType = UNKNOWN_TYPE; 890 } 891 892 private void setType(int type) { 893 mType = type; 894 } 895 896 private void setExtra(String extra) { 897 mExtra = extra; 898 } 899 900 public int getType() { 901 return mType; 902 } 903 904 public String getExtra() { 905 return mExtra; 906 } 907 } 908 909 /** 910 * Construct a new WebView with a Context object. 911 * @param context A Context object used to access application assets. 912 */ 913 public WebView(Context context) { 914 this(context, null); 915 } 916 917 /** 918 * Construct a new WebView with layout parameters. 919 * @param context A Context object used to access application assets. 920 * @param attrs An AttributeSet passed to our parent. 921 */ 922 public WebView(Context context, AttributeSet attrs) { 923 this(context, attrs, com.android.internal.R.attr.webViewStyle); 924 } 925 926 /** 927 * Construct a new WebView with layout parameters and a default style. 928 * @param context A Context object used to access application assets. 929 * @param attrs An AttributeSet passed to our parent. 930 * @param defStyle The default style resource ID. 931 */ 932 public WebView(Context context, AttributeSet attrs, int defStyle) { 933 this(context, attrs, defStyle, false); 934 } 935 936 /** 937 * Construct a new WebView with layout parameters and a default style. 938 * @param context A Context object used to access application assets. 939 * @param attrs An AttributeSet passed to our parent. 940 * @param defStyle The default style resource ID. 941 */ 942 public WebView(Context context, AttributeSet attrs, int defStyle, 943 boolean privateBrowsing) { 944 this(context, attrs, defStyle, null, privateBrowsing); 945 } 946 947 /** 948 * Construct a new WebView with layout parameters, a default style and a set 949 * of custom Javscript interfaces to be added to the WebView at initialization 950 * time. This guarantees that these interfaces will be available when the JS 951 * context is initialized. 952 * @param context A Context object used to access application assets. 953 * @param attrs An AttributeSet passed to our parent. 954 * @param defStyle The default style resource ID. 955 * @param javaScriptInterfaces is a Map of interface names, as keys, and 956 * object implementing those interfaces, as values. 957 * @hide pending API council approval. 958 */ 959 protected WebView(Context context, AttributeSet attrs, int defStyle, 960 Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { 961 super(context, attrs, defStyle); 962 963 // Used by the chrome stack to find application paths 964 JniUtil.setContext(context); 965 966 if (AccessibilityManager.getInstance(context).isEnabled()) { 967 if (javaScriptInterfaces == null) { 968 javaScriptInterfaces = new HashMap<String, Object>(); 969 } 970 exposeAccessibilityJavaScriptApi(javaScriptInterfaces); 971 } 972 973 mCallbackProxy = new CallbackProxy(context, this); 974 mViewManager = new ViewManager(this); 975 L10nUtils.loadStrings(context); 976 mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javaScriptInterfaces); 977 mDatabase = WebViewDatabase.getInstance(context); 978 mScroller = new OverScroller(context, null, 0, 0, false); //TODO Use OverScroller's flywheel 979 mZoomManager = new ZoomManager(this, mCallbackProxy); 980 981 /* The init method must follow the creation of certain member variables, 982 * such as the mZoomManager. 983 */ 984 init(); 985 setupPackageListener(context); 986 setupProxyListener(context); 987 updateMultiTouchSupport(context); 988 989 if (privateBrowsing) { 990 startPrivateBrowsing(); 991 } 992 993 mAutoFillData = new WebViewCore.AutoFillData(); 994 } 995 996 private static class ProxyReceiver extends BroadcastReceiver { 997 @Override 998 public void onReceive(Context context, Intent intent) { 999 if (intent.getAction().equals(Proxy.PROXY_CHANGE_ACTION)) { 1000 handleProxyBroadcast(intent); 1001 } 1002 } 1003 } 1004 1005 private static void setupProxyListener(Context context) { 1006 IntentFilter filter = new IntentFilter(); 1007 filter.addAction(Proxy.PROXY_CHANGE_ACTION); 1008 Intent currentProxy = context.getApplicationContext().registerReceiver(new ProxyReceiver(), filter); 1009 if (currentProxy != null) { 1010 handleProxyBroadcast(currentProxy); 1011 } 1012 } 1013 1014 private static void handleProxyBroadcast(Intent intent) { 1015 ProxyProperties proxyProperties = (ProxyProperties)intent.getExtra(Proxy.EXTRA_PROXY_INFO); 1016 if (proxyProperties == null || proxyProperties.getHost() == null) { 1017 WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, ""); 1018 return; 1019 } 1020 1021 String host = proxyProperties.getHost(); 1022 int port = proxyProperties.getPort(); 1023 if (port != 0) 1024 host += ": " + port; 1025 1026 // TODO: Handle exclusion list 1027 // The plan is to make an AndroidProxyResolver, and handle the blacklist 1028 // there 1029 String exclusionList = proxyProperties.getExclusionList(); 1030 WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, host); 1031 } 1032 1033 /* 1034 * A variable to track if there is a receiver added for ACTION_PACKAGE_ADDED 1035 * or ACTION_PACKAGE_REMOVED. 1036 */ 1037 private static boolean sPackageInstallationReceiverAdded = false; 1038 1039 /* 1040 * A set of Google packages we monitor for the 1041 * navigator.isApplicationInstalled() API. Add additional packages as 1042 * needed. 1043 */ 1044 private static Set<String> sGoogleApps; 1045 static { 1046 sGoogleApps = new HashSet<String>(); 1047 sGoogleApps.add("com.google.android.youtube"); 1048 } 1049 1050 private static class PackageListener extends BroadcastReceiver { 1051 @Override 1052 public void onReceive(Context context, Intent intent) { 1053 final String action = intent.getAction(); 1054 final String packageName = intent.getData().getSchemeSpecificPart(); 1055 final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 1056 if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) { 1057 // if it is replacing, refreshPlugins() when adding 1058 return; 1059 } 1060 1061 if (sGoogleApps.contains(packageName)) { 1062 if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1063 WebViewCore.sendStaticMessage(EventHub.ADD_PACKAGE_NAME, packageName); 1064 } else { 1065 WebViewCore.sendStaticMessage(EventHub.REMOVE_PACKAGE_NAME, packageName); 1066 } 1067 } 1068 1069 PluginManager pm = PluginManager.getInstance(context); 1070 if (pm.containsPluginPermissionAndSignatures(packageName)) { 1071 pm.refreshPlugins(Intent.ACTION_PACKAGE_ADDED.equals(action)); 1072 } 1073 } 1074 } 1075 1076 private void setupPackageListener(Context context) { 1077 1078 /* 1079 * we must synchronize the instance check and the creation of the 1080 * receiver to ensure that only ONE receiver exists for all WebView 1081 * instances. 1082 */ 1083 synchronized (WebView.class) { 1084 1085 // if the receiver already exists then we do not need to register it 1086 // again 1087 if (sPackageInstallationReceiverAdded) { 1088 return; 1089 } 1090 1091 IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); 1092 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1093 filter.addDataScheme("package"); 1094 BroadcastReceiver packageListener = new PackageListener(); 1095 context.getApplicationContext().registerReceiver(packageListener, filter); 1096 sPackageInstallationReceiverAdded = true; 1097 } 1098 1099 // check if any of the monitored apps are already installed 1100 AsyncTask<Void, Void, Set<String>> task = new AsyncTask<Void, Void, Set<String>>() { 1101 1102 @Override 1103 protected Set<String> doInBackground(Void... unused) { 1104 Set<String> installedPackages = new HashSet<String>(); 1105 PackageManager pm = mContext.getPackageManager(); 1106 List<PackageInfo> packages = pm.getInstalledPackages(0); 1107 for (PackageInfo p : packages) { 1108 if (sGoogleApps.contains(p.packageName)) { 1109 installedPackages.add(p.packageName); 1110 } 1111 } 1112 return installedPackages; 1113 } 1114 1115 // Executes on the UI thread 1116 @Override 1117 protected void onPostExecute(Set<String> installedPackages) { 1118 if (mWebViewCore != null) { 1119 mWebViewCore.sendMessage(EventHub.ADD_PACKAGE_NAMES, installedPackages); 1120 } 1121 } 1122 }; 1123 task.execute(); 1124 } 1125 1126 void updateMultiTouchSupport(Context context) { 1127 mZoomManager.updateMultiTouchSupport(context); 1128 } 1129 1130 private void init() { 1131 setWillNotDraw(false); 1132 setFocusable(true); 1133 setFocusableInTouchMode(true); 1134 setClickable(true); 1135 setLongClickable(true); 1136 1137 final ViewConfiguration configuration = ViewConfiguration.get(getContext()); 1138 int slop = configuration.getScaledTouchSlop(); 1139 mTouchSlopSquare = slop * slop; 1140 mMinLockSnapReverseDistance = slop; 1141 slop = configuration.getScaledDoubleTapSlop(); 1142 mDoubleTapSlopSquare = slop * slop; 1143 final float density = getContext().getResources().getDisplayMetrics().density; 1144 // use one line height, 16 based on our current default font, for how 1145 // far we allow a touch be away from the edge of a link 1146 mNavSlop = (int) (16 * density); 1147 mZoomManager.init(density); 1148 mMaximumFling = configuration.getScaledMaximumFlingVelocity(); 1149 1150 // Compute the inverse of the density squared. 1151 DRAG_LAYER_INVERSE_DENSITY_SQUARED = 1 / (density * density); 1152 1153 mOverscrollDistance = configuration.getScaledOverscrollDistance(); 1154 mOverflingDistance = configuration.getScaledOverflingDistance(); 1155 } 1156 1157 /** 1158 * Exposes accessibility APIs to JavaScript by appending them to the JavaScript 1159 * interfaces map provided by the WebView client. In case of conflicting 1160 * alias with the one of the accessibility API the user specified one wins. 1161 * 1162 * @param javaScriptInterfaces A map with interfaces to be exposed to JavaScript. 1163 */ 1164 private void exposeAccessibilityJavaScriptApi(Map<String, Object> javaScriptInterfaces) { 1165 if (javaScriptInterfaces.containsKey(ALIAS_ACCESSIBILITY_JS_INTERFACE)) { 1166 Log.w(LOGTAG, "JavaScript interface mapped to \"" + ALIAS_ACCESSIBILITY_JS_INTERFACE 1167 + "\" overrides the accessibility API JavaScript interface. No accessibility" 1168 + "API will be exposed to JavaScript!"); 1169 return; 1170 } 1171 1172 // expose the TTS for now ... 1173 javaScriptInterfaces.put(ALIAS_ACCESSIBILITY_JS_INTERFACE, 1174 new TextToSpeech(getContext(), null)); 1175 } 1176 1177 @Override 1178 public void setOverScrollMode(int mode) { 1179 super.setOverScrollMode(mode); 1180 if (mode != OVER_SCROLL_NEVER) { 1181 if (mOverScrollGlow == null) { 1182 mOverScrollGlow = new OverScrollGlow(this); 1183 } 1184 } else { 1185 mOverScrollGlow = null; 1186 } 1187 } 1188 1189 /* package */void updateDefaultZoomDensity(int zoomDensity) { 1190 final float density = mContext.getResources().getDisplayMetrics().density 1191 * 100 / zoomDensity; 1192 mNavSlop = (int) (16 * density); 1193 mZoomManager.updateDefaultZoomDensity(density); 1194 } 1195 1196 /* package */ boolean onSavePassword(String schemePlusHost, String username, 1197 String password, final Message resumeMsg) { 1198 boolean rVal = false; 1199 if (resumeMsg == null) { 1200 // null resumeMsg implies saving password silently 1201 mDatabase.setUsernamePassword(schemePlusHost, username, password); 1202 } else { 1203 final Message remember = mPrivateHandler.obtainMessage( 1204 REMEMBER_PASSWORD); 1205 remember.getData().putString("host", schemePlusHost); 1206 remember.getData().putString("username", username); 1207 remember.getData().putString("password", password); 1208 remember.obj = resumeMsg; 1209 1210 final Message neverRemember = mPrivateHandler.obtainMessage( 1211 NEVER_REMEMBER_PASSWORD); 1212 neverRemember.getData().putString("host", schemePlusHost); 1213 neverRemember.getData().putString("username", username); 1214 neverRemember.getData().putString("password", password); 1215 neverRemember.obj = resumeMsg; 1216 1217 new AlertDialog.Builder(getContext()) 1218 .setTitle(com.android.internal.R.string.save_password_label) 1219 .setMessage(com.android.internal.R.string.save_password_message) 1220 .setPositiveButton(com.android.internal.R.string.save_password_notnow, 1221 new DialogInterface.OnClickListener() { 1222 public void onClick(DialogInterface dialog, int which) { 1223 resumeMsg.sendToTarget(); 1224 } 1225 }) 1226 .setNeutralButton(com.android.internal.R.string.save_password_remember, 1227 new DialogInterface.OnClickListener() { 1228 public void onClick(DialogInterface dialog, int which) { 1229 remember.sendToTarget(); 1230 } 1231 }) 1232 .setNegativeButton(com.android.internal.R.string.save_password_never, 1233 new DialogInterface.OnClickListener() { 1234 public void onClick(DialogInterface dialog, int which) { 1235 neverRemember.sendToTarget(); 1236 } 1237 }) 1238 .setOnCancelListener(new OnCancelListener() { 1239 public void onCancel(DialogInterface dialog) { 1240 resumeMsg.sendToTarget(); 1241 } 1242 }).show(); 1243 // Return true so that WebViewCore will pause while the dialog is 1244 // up. 1245 rVal = true; 1246 } 1247 return rVal; 1248 } 1249 1250 @Override 1251 public void setScrollBarStyle(int style) { 1252 if (style == View.SCROLLBARS_INSIDE_INSET 1253 || style == View.SCROLLBARS_OUTSIDE_INSET) { 1254 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = false; 1255 } else { 1256 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = true; 1257 } 1258 super.setScrollBarStyle(style); 1259 } 1260 1261 /** 1262 * Specify whether the horizontal scrollbar has overlay style. 1263 * @param overlay TRUE if horizontal scrollbar should have overlay style. 1264 */ 1265 public void setHorizontalScrollbarOverlay(boolean overlay) { 1266 mOverlayHorizontalScrollbar = overlay; 1267 } 1268 1269 /** 1270 * Specify whether the vertical scrollbar has overlay style. 1271 * @param overlay TRUE if vertical scrollbar should have overlay style. 1272 */ 1273 public void setVerticalScrollbarOverlay(boolean overlay) { 1274 mOverlayVerticalScrollbar = overlay; 1275 } 1276 1277 /** 1278 * Return whether horizontal scrollbar has overlay style 1279 * @return TRUE if horizontal scrollbar has overlay style. 1280 */ 1281 public boolean overlayHorizontalScrollbar() { 1282 return mOverlayHorizontalScrollbar; 1283 } 1284 1285 /** 1286 * Return whether vertical scrollbar has overlay style 1287 * @return TRUE if vertical scrollbar has overlay style. 1288 */ 1289 public boolean overlayVerticalScrollbar() { 1290 return mOverlayVerticalScrollbar; 1291 } 1292 1293 /* 1294 * Return the width of the view where the content of WebView should render 1295 * to. 1296 * Note: this can be called from WebCoreThread. 1297 */ 1298 /* package */ int getViewWidth() { 1299 if (!isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) { 1300 return getWidth(); 1301 } else { 1302 return Math.max(0, getWidth() - getVerticalScrollbarWidth()); 1303 } 1304 } 1305 1306 /* 1307 * returns the height of the titlebarview (if any). Does not care about 1308 * scrolling 1309 */ 1310 int getTitleHeight() { 1311 return mTitleBar != null ? mTitleBar.getHeight() : 0; 1312 } 1313 1314 /* 1315 * Return the amount of the titlebarview (if any) that is visible 1316 * 1317 * @hide 1318 */ 1319 public int getVisibleTitleHeight() { 1320 // need to restrict mScrollY due to over scroll 1321 return Math.max(getTitleHeight() - Math.max(0, mScrollY), 0); 1322 } 1323 1324 /* 1325 * Return the height of the view where the content of WebView should render 1326 * to. Note that this excludes mTitleBar, if there is one. 1327 * Note: this can be called from WebCoreThread. 1328 */ 1329 /* package */ int getViewHeight() { 1330 return getViewHeightWithTitle() - getVisibleTitleHeight(); 1331 } 1332 1333 private int getViewHeightWithTitle() { 1334 int height = getHeight(); 1335 if (isHorizontalScrollBarEnabled() && !mOverlayHorizontalScrollbar) { 1336 height -= getHorizontalScrollbarHeight(); 1337 } 1338 return height; 1339 } 1340 1341 /** 1342 * @return The SSL certificate for the main top-level page or null if 1343 * there is no certificate (the site is not secure). 1344 */ 1345 public SslCertificate getCertificate() { 1346 return mCertificate; 1347 } 1348 1349 /** 1350 * Sets the SSL certificate for the main top-level page. 1351 */ 1352 public void setCertificate(SslCertificate certificate) { 1353 if (DebugFlags.WEB_VIEW) { 1354 Log.v(LOGTAG, "setCertificate=" + certificate); 1355 } 1356 // here, the certificate can be null (if the site is not secure) 1357 mCertificate = certificate; 1358 } 1359 1360 //------------------------------------------------------------------------- 1361 // Methods called by activity 1362 //------------------------------------------------------------------------- 1363 1364 /** 1365 * Save the username and password for a particular host in the WebView's 1366 * internal database. 1367 * @param host The host that required the credentials. 1368 * @param username The username for the given host. 1369 * @param password The password for the given host. 1370 */ 1371 public void savePassword(String host, String username, String password) { 1372 mDatabase.setUsernamePassword(host, username, password); 1373 } 1374 1375 /** 1376 * Set the HTTP authentication credentials for a given host and realm. 1377 * 1378 * @param host The host for the credentials. 1379 * @param realm The realm for the credentials. 1380 * @param username The username for the password. If it is null, it means 1381 * password can't be saved. 1382 * @param password The password 1383 */ 1384 public void setHttpAuthUsernamePassword(String host, String realm, 1385 String username, String password) { 1386 mDatabase.setHttpAuthUsernamePassword(host, realm, username, password); 1387 } 1388 1389 /** 1390 * Retrieve the HTTP authentication username and password for a given 1391 * host & realm pair 1392 * 1393 * @param host The host for which the credentials apply. 1394 * @param realm The realm for which the credentials apply. 1395 * @return String[] if found, String[0] is username, which can be null and 1396 * String[1] is password. Return null if it can't find anything. 1397 */ 1398 public String[] getHttpAuthUsernamePassword(String host, String realm) { 1399 return mDatabase.getHttpAuthUsernamePassword(host, realm); 1400 } 1401 1402 /** 1403 * Remove Find or Select ActionModes, if active. 1404 */ 1405 private void clearActionModes() { 1406 if (mSelectCallback != null) { 1407 mSelectCallback.finish(); 1408 } 1409 if (mFindCallback != null) { 1410 mFindCallback.finish(); 1411 } 1412 } 1413 1414 /** 1415 * Called to clear state when moving from one page to another, or changing 1416 * in some other way that makes elements associated with the current page 1417 * (such as WebTextView or ActionModes) no longer relevant. 1418 */ 1419 private void clearHelpers() { 1420 clearTextEntry(); 1421 clearActionModes(); 1422 dismissFullScreenMode(); 1423 } 1424 1425 /** 1426 * Destroy the internal state of the WebView. This method should be called 1427 * after the WebView has been removed from the view system. No other 1428 * methods may be called on a WebView after destroy. 1429 */ 1430 public void destroy() { 1431 clearHelpers(); 1432 if (mListBoxDialog != null) { 1433 mListBoxDialog.dismiss(); 1434 mListBoxDialog = null; 1435 } 1436 if (mWebViewCore != null) { 1437 // Set the handlers to null before destroying WebViewCore so no 1438 // more messages will be posted. 1439 mCallbackProxy.setWebViewClient(null); 1440 mCallbackProxy.setWebChromeClient(null); 1441 // Tell WebViewCore to destroy itself 1442 synchronized (this) { 1443 WebViewCore webViewCore = mWebViewCore; 1444 mWebViewCore = null; // prevent using partial webViewCore 1445 webViewCore.destroy(); 1446 } 1447 // Remove any pending messages that might not be serviced yet. 1448 mPrivateHandler.removeCallbacksAndMessages(null); 1449 mCallbackProxy.removeCallbacksAndMessages(null); 1450 // Wake up the WebCore thread just in case it is waiting for a 1451 // JavaScript dialog. 1452 synchronized (mCallbackProxy) { 1453 mCallbackProxy.notify(); 1454 } 1455 } 1456 if (mNativeClass != 0) { 1457 nativeDestroy(); 1458 mNativeClass = 0; 1459 } 1460 } 1461 1462 /** 1463 * Enables platform notifications of data state and proxy changes. 1464 */ 1465 public static void enablePlatformNotifications() { 1466 Network.enablePlatformNotifications(); 1467 } 1468 1469 /** 1470 * If platform notifications are enabled, this should be called 1471 * from the Activity's onPause() or onStop(). 1472 */ 1473 public static void disablePlatformNotifications() { 1474 Network.disablePlatformNotifications(); 1475 } 1476 1477 /** 1478 * Sets JavaScript engine flags. 1479 * 1480 * @param flags JS engine flags in a String 1481 * 1482 * @hide pending API solidification 1483 */ 1484 public void setJsFlags(String flags) { 1485 mWebViewCore.sendMessage(EventHub.SET_JS_FLAGS, flags); 1486 } 1487 1488 /** 1489 * Inform WebView of the network state. This is used to set 1490 * the JavaScript property window.navigator.isOnline and 1491 * generates the online/offline event as specified in HTML5, sec. 5.7.7 1492 * @param networkUp boolean indicating if network is available 1493 */ 1494 public void setNetworkAvailable(boolean networkUp) { 1495 mWebViewCore.sendMessage(EventHub.SET_NETWORK_STATE, 1496 networkUp ? 1 : 0, 0); 1497 } 1498 1499 /** 1500 * Inform WebView about the current network type. 1501 * {@hide} 1502 */ 1503 public void setNetworkType(String type, String subtype) { 1504 Map<String, String> map = new HashMap<String, String>(); 1505 map.put("type", type); 1506 map.put("subtype", subtype); 1507 mWebViewCore.sendMessage(EventHub.SET_NETWORK_TYPE, map); 1508 } 1509 /** 1510 * Save the state of this WebView used in 1511 * {@link android.app.Activity#onSaveInstanceState}. Please note that this 1512 * method no longer stores the display data for this WebView. The previous 1513 * behavior could potentially leak files if {@link #restoreState} was never 1514 * called. See {@link #savePicture} and {@link #restorePicture} for saving 1515 * and restoring the display data. 1516 * @param outState The Bundle to store the WebView state. 1517 * @return The same copy of the back/forward list used to save the state. If 1518 * saveState fails, the returned list will be null. 1519 * @see #savePicture 1520 * @see #restorePicture 1521 */ 1522 public WebBackForwardList saveState(Bundle outState) { 1523 if (outState == null) { 1524 return null; 1525 } 1526 // We grab a copy of the back/forward list because a client of WebView 1527 // may have invalidated the history list by calling clearHistory. 1528 WebBackForwardList list = copyBackForwardList(); 1529 final int currentIndex = list.getCurrentIndex(); 1530 final int size = list.getSize(); 1531 // We should fail saving the state if the list is empty or the index is 1532 // not in a valid range. 1533 if (currentIndex < 0 || currentIndex >= size || size == 0) { 1534 return null; 1535 } 1536 outState.putInt("index", currentIndex); 1537 // FIXME: This should just be a byte[][] instead of ArrayList but 1538 // Parcel.java does not have the code to handle multi-dimensional 1539 // arrays. 1540 ArrayList<byte[]> history = new ArrayList<byte[]>(size); 1541 for (int i = 0; i < size; i++) { 1542 WebHistoryItem item = list.getItemAtIndex(i); 1543 if (null == item) { 1544 // FIXME: this shouldn't happen 1545 // need to determine how item got set to null 1546 Log.w(LOGTAG, "saveState: Unexpected null history item."); 1547 return null; 1548 } 1549 byte[] data = item.getFlattenedData(); 1550 if (data == null) { 1551 // It would be very odd to not have any data for a given history 1552 // item. And we will fail to rebuild the history list without 1553 // flattened data. 1554 return null; 1555 } 1556 history.add(data); 1557 } 1558 outState.putSerializable("history", history); 1559 if (mCertificate != null) { 1560 outState.putBundle("certificate", 1561 SslCertificate.saveState(mCertificate)); 1562 } 1563 outState.putBoolean("privateBrowsingEnabled", isPrivateBrowsingEnabled()); 1564 mZoomManager.saveZoomState(outState); 1565 return list; 1566 } 1567 1568 /** 1569 * Save the current display data to the Bundle given. Used in conjunction 1570 * with {@link #saveState}. 1571 * @param b A Bundle to store the display data. 1572 * @param dest The file to store the serialized picture data. Will be 1573 * overwritten with this WebView's picture data. 1574 * @return True if the picture was successfully saved. 1575 */ 1576 public boolean savePicture(Bundle b, final File dest) { 1577 if (dest == null || b == null) { 1578 return false; 1579 } 1580 final Picture p = capturePicture(); 1581 // Use a temporary file while writing to ensure the destination file 1582 // contains valid data. 1583 final File temp = new File(dest.getPath() + ".writing"); 1584 new Thread(new Runnable() { 1585 public void run() { 1586 FileOutputStream out = null; 1587 try { 1588 out = new FileOutputStream(temp); 1589 p.writeToStream(out); 1590 // Writing the picture succeeded, rename the temporary file 1591 // to the destination. 1592 temp.renameTo(dest); 1593 } catch (Exception e) { 1594 // too late to do anything about it. 1595 } finally { 1596 if (out != null) { 1597 try { 1598 out.close(); 1599 } catch (Exception e) { 1600 // Can't do anything about that 1601 } 1602 } 1603 temp.delete(); 1604 } 1605 } 1606 }).start(); 1607 // now update the bundle 1608 b.putInt("scrollX", mScrollX); 1609 b.putInt("scrollY", mScrollY); 1610 mZoomManager.saveZoomState(b); 1611 return true; 1612 } 1613 1614 private void restoreHistoryPictureFields(Picture p, Bundle b) { 1615 int sx = b.getInt("scrollX", 0); 1616 int sy = b.getInt("scrollY", 0); 1617 1618 mDrawHistory = true; 1619 mHistoryPicture = p; 1620 mScrollX = sx; 1621 mScrollY = sy; 1622 mZoomManager.restoreZoomState(b); 1623 final float scale = mZoomManager.getScale(); 1624 mHistoryWidth = Math.round(p.getWidth() * scale); 1625 mHistoryHeight = Math.round(p.getHeight() * scale); 1626 1627 invalidate(); 1628 } 1629 1630 /** 1631 * Restore the display data that was save in {@link #savePicture}. Used in 1632 * conjunction with {@link #restoreState}. 1633 * @param b A Bundle containing the saved display data. 1634 * @param src The file where the picture data was stored. 1635 * @return True if the picture was successfully restored. 1636 */ 1637 public boolean restorePicture(Bundle b, File src) { 1638 if (src == null || b == null) { 1639 return false; 1640 } 1641 if (!src.exists()) { 1642 return false; 1643 } 1644 try { 1645 final FileInputStream in = new FileInputStream(src); 1646 final Bundle copy = new Bundle(b); 1647 new Thread(new Runnable() { 1648 public void run() { 1649 try { 1650 final Picture p = Picture.createFromStream(in); 1651 if (p != null) { 1652 // Post a runnable on the main thread to update the 1653 // history picture fields. 1654 mPrivateHandler.post(new Runnable() { 1655 public void run() { 1656 restoreHistoryPictureFields(p, copy); 1657 } 1658 }); 1659 } 1660 } finally { 1661 try { 1662 in.close(); 1663 } catch (Exception e) { 1664 // Nothing we can do now. 1665 } 1666 } 1667 } 1668 }).start(); 1669 } catch (FileNotFoundException e){ 1670 e.printStackTrace(); 1671 } 1672 return true; 1673 } 1674 1675 /** 1676 * Restore the state of this WebView from the given map used in 1677 * {@link android.app.Activity#onRestoreInstanceState}. This method should 1678 * be called to restore the state of the WebView before using the object. If 1679 * it is called after the WebView has had a chance to build state (load 1680 * pages, create a back/forward list, etc.) there may be undesirable 1681 * side-effects. Please note that this method no longer restores the 1682 * display data for this WebView. See {@link #savePicture} and {@link 1683 * #restorePicture} for saving and restoring the display data. 1684 * @param inState The incoming Bundle of state. 1685 * @return The restored back/forward list or null if restoreState failed. 1686 * @see #savePicture 1687 * @see #restorePicture 1688 */ 1689 public WebBackForwardList restoreState(Bundle inState) { 1690 WebBackForwardList returnList = null; 1691 if (inState == null) { 1692 return returnList; 1693 } 1694 if (inState.containsKey("index") && inState.containsKey("history")) { 1695 mCertificate = SslCertificate.restoreState( 1696 inState.getBundle("certificate")); 1697 1698 final WebBackForwardList list = mCallbackProxy.getBackForwardList(); 1699 final int index = inState.getInt("index"); 1700 // We can't use a clone of the list because we need to modify the 1701 // shared copy, so synchronize instead to prevent concurrent 1702 // modifications. 1703 synchronized (list) { 1704 final List<byte[]> history = 1705 (List<byte[]>) inState.getSerializable("history"); 1706 final int size = history.size(); 1707 // Check the index bounds so we don't crash in native code while 1708 // restoring the history index. 1709 if (index < 0 || index >= size) { 1710 return null; 1711 } 1712 for (int i = 0; i < size; i++) { 1713 byte[] data = history.remove(0); 1714 if (data == null) { 1715 // If we somehow have null data, we cannot reconstruct 1716 // the item and thus our history list cannot be rebuilt. 1717 return null; 1718 } 1719 WebHistoryItem item = new WebHistoryItem(data); 1720 list.addHistoryItem(item); 1721 } 1722 // Grab the most recent copy to return to the caller. 1723 returnList = copyBackForwardList(); 1724 // Update the copy to have the correct index. 1725 returnList.setCurrentIndex(index); 1726 } 1727 // Restore private browsing setting. 1728 if (inState.getBoolean("privateBrowsingEnabled")) { 1729 getSettings().setPrivateBrowsingEnabled(true); 1730 } 1731 mZoomManager.restoreZoomState(inState); 1732 // Remove all pending messages because we are restoring previous 1733 // state. 1734 mWebViewCore.removeMessages(); 1735 // Send a restore state message. 1736 mWebViewCore.sendMessage(EventHub.RESTORE_STATE, index); 1737 } 1738 return returnList; 1739 } 1740 1741 /** 1742 * Load the given url with the extra headers. 1743 * @param url The url of the resource to load. 1744 * @param extraHeaders The extra headers sent with this url. This should not 1745 * include the common headers like "user-agent". If it does, it 1746 * will be replaced by the intrinsic value of the WebView. 1747 */ 1748 public void loadUrl(String url, Map<String, String> extraHeaders) { 1749 switchOutDrawHistory(); 1750 WebViewCore.GetUrlData arg = new WebViewCore.GetUrlData(); 1751 arg.mUrl = url; 1752 arg.mExtraHeaders = extraHeaders; 1753 mWebViewCore.sendMessage(EventHub.LOAD_URL, arg); 1754 clearHelpers(); 1755 } 1756 1757 /** 1758 * Load the given url. 1759 * @param url The url of the resource to load. 1760 */ 1761 public void loadUrl(String url) { 1762 if (url == null) { 1763 return; 1764 } 1765 loadUrl(url, null); 1766 } 1767 1768 /** 1769 * Load the url with postData using "POST" method into the WebView. If url 1770 * is not a network url, it will be loaded with {link 1771 * {@link #loadUrl(String)} instead. 1772 * 1773 * @param url The url of the resource to load. 1774 * @param postData The data will be passed to "POST" request. 1775 */ 1776 public void postUrl(String url, byte[] postData) { 1777 if (URLUtil.isNetworkUrl(url)) { 1778 switchOutDrawHistory(); 1779 WebViewCore.PostUrlData arg = new WebViewCore.PostUrlData(); 1780 arg.mUrl = url; 1781 arg.mPostData = postData; 1782 mWebViewCore.sendMessage(EventHub.POST_URL, arg); 1783 clearHelpers(); 1784 } else { 1785 loadUrl(url); 1786 } 1787 } 1788 1789 /** 1790 * Load the given data into the WebView. This will load the data into 1791 * WebView using the data: scheme. Content loaded through this mechanism 1792 * does not have the ability to load content from the network. 1793 * @param data A String of data in the given encoding. The date must 1794 * be URI-escaped -- '#', '%', '\', '?' should be replaced by %23, %25, 1795 * %27, %3f respectively. 1796 * @param mimeType The MIMEType of the data. i.e. text/html, image/jpeg 1797 * @param encoding The encoding of the data. i.e. utf-8, base64 1798 */ 1799 public void loadData(String data, String mimeType, String encoding) { 1800 loadUrl("data:" + mimeType + ";" + encoding + "," + data); 1801 } 1802 1803 /** 1804 * Load the given data into the WebView, use the provided URL as the base 1805 * URL for the content. The base URL is the URL that represents the page 1806 * that is loaded through this interface. As such, it is used to resolve any 1807 * relative URLs. The historyUrl is used for the history entry. 1808 * <p> 1809 * Note for post 1.0. Due to the change in the WebKit, the access to asset 1810 * files through "file:///android_asset/" for the sub resources is more 1811 * restricted. If you provide null or empty string as baseUrl, you won't be 1812 * able to access asset files. If the baseUrl is anything other than 1813 * http(s)/ftp(s)/about/javascript as scheme, you can access asset files for 1814 * sub resources. 1815 * 1816 * @param baseUrl Url to resolve relative paths with, if null defaults to 1817 * "about:blank" 1818 * @param data A String of data in the given encoding. 1819 * @param mimeType The MIMEType of the data. i.e. text/html. If null, 1820 * defaults to "text/html" 1821 * @param encoding The encoding of the data. i.e. utf-8, us-ascii 1822 * @param historyUrl URL to use as the history entry. Can be null. 1823 */ 1824 public void loadDataWithBaseURL(String baseUrl, String data, 1825 String mimeType, String encoding, String historyUrl) { 1826 1827 if (baseUrl != null && baseUrl.toLowerCase().startsWith("data:")) { 1828 loadData(data, mimeType, encoding); 1829 return; 1830 } 1831 switchOutDrawHistory(); 1832 WebViewCore.BaseUrlData arg = new WebViewCore.BaseUrlData(); 1833 arg.mBaseUrl = baseUrl; 1834 arg.mData = data; 1835 arg.mMimeType = mimeType; 1836 arg.mEncoding = encoding; 1837 arg.mHistoryUrl = historyUrl; 1838 mWebViewCore.sendMessage(EventHub.LOAD_DATA, arg); 1839 clearHelpers(); 1840 } 1841 1842 /** 1843 * Saves the current view as a web archive. 1844 * 1845 * @param filename The filename where the archive should be placed. 1846 */ 1847 public void saveWebArchive(String filename) { 1848 saveWebArchive(filename, false, null); 1849 } 1850 1851 /* package */ static class SaveWebArchiveMessage { 1852 SaveWebArchiveMessage (String basename, boolean autoname, ValueCallback<String> callback) { 1853 mBasename = basename; 1854 mAutoname = autoname; 1855 mCallback = callback; 1856 } 1857 1858 /* package */ final String mBasename; 1859 /* package */ final boolean mAutoname; 1860 /* package */ final ValueCallback<String> mCallback; 1861 /* package */ String mResultFile; 1862 } 1863 1864 /** 1865 * Saves the current view as a web archive. 1866 * 1867 * @param basename The filename where the archive should be placed. 1868 * @param autoname If false, takes basename to be a file. If true, basename 1869 * is assumed to be a directory in which a filename will be 1870 * chosen according to the url of the current page. 1871 * @param callback Called after the web archive has been saved. The 1872 * parameter for onReceiveValue will either be the filename 1873 * under which the file was saved, or null if saving the 1874 * file failed. 1875 */ 1876 public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) { 1877 mWebViewCore.sendMessage(EventHub.SAVE_WEBARCHIVE, 1878 new SaveWebArchiveMessage(basename, autoname, callback)); 1879 } 1880 1881 /** 1882 * Stop the current load. 1883 */ 1884 public void stopLoading() { 1885 // TODO: should we clear all the messages in the queue before sending 1886 // STOP_LOADING? 1887 switchOutDrawHistory(); 1888 mWebViewCore.sendMessage(EventHub.STOP_LOADING); 1889 } 1890 1891 /** 1892 * Reload the current url. 1893 */ 1894 public void reload() { 1895 clearHelpers(); 1896 switchOutDrawHistory(); 1897 mWebViewCore.sendMessage(EventHub.RELOAD); 1898 } 1899 1900 /** 1901 * Return true if this WebView has a back history item. 1902 * @return True iff this WebView has a back history item. 1903 */ 1904 public boolean canGoBack() { 1905 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 1906 synchronized (l) { 1907 if (l.getClearPending()) { 1908 return false; 1909 } else { 1910 return l.getCurrentIndex() > 0; 1911 } 1912 } 1913 } 1914 1915 /** 1916 * Go back in the history of this WebView. 1917 */ 1918 public void goBack() { 1919 goBackOrForward(-1); 1920 } 1921 1922 /** 1923 * Return true if this WebView has a forward history item. 1924 * @return True iff this Webview has a forward history item. 1925 */ 1926 public boolean canGoForward() { 1927 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 1928 synchronized (l) { 1929 if (l.getClearPending()) { 1930 return false; 1931 } else { 1932 return l.getCurrentIndex() < l.getSize() - 1; 1933 } 1934 } 1935 } 1936 1937 /** 1938 * Go forward in the history of this WebView. 1939 */ 1940 public void goForward() { 1941 goBackOrForward(1); 1942 } 1943 1944 /** 1945 * Return true if the page can go back or forward the given 1946 * number of steps. 1947 * @param steps The negative or positive number of steps to move the 1948 * history. 1949 */ 1950 public boolean canGoBackOrForward(int steps) { 1951 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 1952 synchronized (l) { 1953 if (l.getClearPending()) { 1954 return false; 1955 } else { 1956 int newIndex = l.getCurrentIndex() + steps; 1957 return newIndex >= 0 && newIndex < l.getSize(); 1958 } 1959 } 1960 } 1961 1962 /** 1963 * Go to the history item that is the number of steps away from 1964 * the current item. Steps is negative if backward and positive 1965 * if forward. 1966 * @param steps The number of steps to take back or forward in the back 1967 * forward list. 1968 */ 1969 public void goBackOrForward(int steps) { 1970 goBackOrForward(steps, false); 1971 } 1972 1973 private void goBackOrForward(int steps, boolean ignoreSnapshot) { 1974 if (steps != 0) { 1975 clearHelpers(); 1976 mWebViewCore.sendMessage(EventHub.GO_BACK_FORWARD, steps, 1977 ignoreSnapshot ? 1 : 0); 1978 } 1979 } 1980 1981 /** 1982 * Returns true if private browsing is enabled in this WebView. 1983 */ 1984 public boolean isPrivateBrowsingEnabled() { 1985 return getSettings().isPrivateBrowsingEnabled(); 1986 } 1987 1988 private void startPrivateBrowsing() { 1989 boolean wasPrivateBrowsingEnabled = isPrivateBrowsingEnabled(); 1990 1991 getSettings().setPrivateBrowsingEnabled(true); 1992 1993 if (!wasPrivateBrowsingEnabled) { 1994 loadUrl("browser:incognito"); 1995 } 1996 } 1997 1998 private boolean extendScroll(int y) { 1999 int finalY = mScroller.getFinalY(); 2000 int newY = pinLocY(finalY + y); 2001 if (newY == finalY) return false; 2002 mScroller.setFinalY(newY); 2003 mScroller.extendDuration(computeDuration(0, y)); 2004 return true; 2005 } 2006 2007 /** 2008 * Scroll the contents of the view up by half the view size 2009 * @param top true to jump to the top of the page 2010 * @return true if the page was scrolled 2011 */ 2012 public boolean pageUp(boolean top) { 2013 if (mNativeClass == 0) { 2014 return false; 2015 } 2016 nativeClearCursor(); // start next trackball movement from page edge 2017 if (top) { 2018 // go to the top of the document 2019 return pinScrollTo(mScrollX, 0, true, 0); 2020 } 2021 // Page up 2022 int h = getHeight(); 2023 int y; 2024 if (h > 2 * PAGE_SCROLL_OVERLAP) { 2025 y = -h + PAGE_SCROLL_OVERLAP; 2026 } else { 2027 y = -h / 2; 2028 } 2029 mUserScroll = true; 2030 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 2031 : extendScroll(y); 2032 } 2033 2034 /** 2035 * Scroll the contents of the view down by half the page size 2036 * @param bottom true to jump to bottom of page 2037 * @return true if the page was scrolled 2038 */ 2039 public boolean pageDown(boolean bottom) { 2040 if (mNativeClass == 0) { 2041 return false; 2042 } 2043 nativeClearCursor(); // start next trackball movement from page edge 2044 if (bottom) { 2045 return pinScrollTo(mScrollX, computeRealVerticalScrollRange(), true, 0); 2046 } 2047 // Page down. 2048 int h = getHeight(); 2049 int y; 2050 if (h > 2 * PAGE_SCROLL_OVERLAP) { 2051 y = h - PAGE_SCROLL_OVERLAP; 2052 } else { 2053 y = h / 2; 2054 } 2055 mUserScroll = true; 2056 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 2057 : extendScroll(y); 2058 } 2059 2060 /** 2061 * Clear the view so that onDraw() will draw nothing but white background, 2062 * and onMeasure() will return 0 if MeasureSpec is not MeasureSpec.EXACTLY 2063 */ 2064 public void clearView() { 2065 mContentWidth = 0; 2066 mContentHeight = 0; 2067 setBaseLayer(0, null); 2068 mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); 2069 } 2070 2071 /** 2072 * Return a new picture that captures the current display of the webview. 2073 * This is a copy of the display, and will be unaffected if the webview 2074 * later loads a different URL. 2075 * 2076 * @return a picture containing the current contents of the view. Note this 2077 * picture is of the entire document, and is not restricted to the 2078 * bounds of the view. 2079 */ 2080 public Picture capturePicture() { 2081 if (mNativeClass == 0) return null; 2082 Picture result = new Picture(); 2083 nativeCopyBaseContentToPicture(result); 2084 return result; 2085 } 2086 2087 /** 2088 * Return true if the browser is displaying a TextView for text input. 2089 */ 2090 private boolean inEditingMode() { 2091 return mWebTextView != null && mWebTextView.getParent() != null; 2092 } 2093 2094 /** 2095 * Remove the WebTextView. 2096 */ 2097 private void clearTextEntry() { 2098 if (inEditingMode()) { 2099 mWebTextView.remove(); 2100 } else { 2101 // The keyboard may be open with the WebView as the served view 2102 hideSoftKeyboard(); 2103 } 2104 } 2105 2106 /** 2107 * Return the current scale of the WebView 2108 * @return The current scale. 2109 */ 2110 public float getScale() { 2111 return mZoomManager.getScale(); 2112 } 2113 2114 /** 2115 * Set the initial scale for the WebView. 0 means default. If 2116 * {@link WebSettings#getUseWideViewPort()} is true, it zooms out all the 2117 * way. Otherwise it starts with 100%. If initial scale is greater than 0, 2118 * WebView starts will this value as initial scale. 2119 * 2120 * @param scaleInPercent The initial scale in percent. 2121 */ 2122 public void setInitialScale(int scaleInPercent) { 2123 mZoomManager.setInitialScaleInPercent(scaleInPercent); 2124 } 2125 2126 /** 2127 * Invoke the graphical zoom picker widget for this WebView. This will 2128 * result in the zoom widget appearing on the screen to control the zoom 2129 * level of this WebView. 2130 */ 2131 public void invokeZoomPicker() { 2132 if (!getSettings().supportZoom()) { 2133 Log.w(LOGTAG, "This WebView doesn't support zoom."); 2134 return; 2135 } 2136 clearHelpers(); 2137 mZoomManager.invokeZoomPicker(); 2138 } 2139 2140 /** 2141 * Return a HitTestResult based on the current cursor node. If a HTML::a tag 2142 * is found and the anchor has a non-JavaScript url, the HitTestResult type 2143 * is set to SRC_ANCHOR_TYPE and the url is set in the "extra" field. If the 2144 * anchor does not have a url or if it is a JavaScript url, the type will 2145 * be UNKNOWN_TYPE and the url has to be retrieved through 2146 * {@link #requestFocusNodeHref} asynchronously. If a HTML::img tag is 2147 * found, the HitTestResult type is set to IMAGE_TYPE and the url is set in 2148 * the "extra" field. A type of 2149 * SRC_IMAGE_ANCHOR_TYPE indicates an anchor with a url that has an image as 2150 * a child node. If a phone number is found, the HitTestResult type is set 2151 * to PHONE_TYPE and the phone number is set in the "extra" field of 2152 * HitTestResult. If a map address is found, the HitTestResult type is set 2153 * to GEO_TYPE and the address is set in the "extra" field of HitTestResult. 2154 * If an email address is found, the HitTestResult type is set to EMAIL_TYPE 2155 * and the email is set in the "extra" field of HitTestResult. Otherwise, 2156 * HitTestResult type is set to UNKNOWN_TYPE. 2157 */ 2158 public HitTestResult getHitTestResult() { 2159 return hitTestResult(mInitialHitTestResult); 2160 } 2161 2162 private HitTestResult hitTestResult(HitTestResult fallback) { 2163 if (mNativeClass == 0) { 2164 return null; 2165 } 2166 2167 HitTestResult result = new HitTestResult(); 2168 if (nativeHasCursorNode()) { 2169 if (nativeCursorIsTextInput()) { 2170 result.setType(HitTestResult.EDIT_TEXT_TYPE); 2171 } else { 2172 String text = nativeCursorText(); 2173 if (text != null) { 2174 if (text.startsWith(SCHEME_TEL)) { 2175 result.setType(HitTestResult.PHONE_TYPE); 2176 result.setExtra(text.substring(SCHEME_TEL.length())); 2177 } else if (text.startsWith(SCHEME_MAILTO)) { 2178 result.setType(HitTestResult.EMAIL_TYPE); 2179 result.setExtra(text.substring(SCHEME_MAILTO.length())); 2180 } else if (text.startsWith(SCHEME_GEO)) { 2181 result.setType(HitTestResult.GEO_TYPE); 2182 result.setExtra(URLDecoder.decode(text 2183 .substring(SCHEME_GEO.length()))); 2184 } else if (nativeCursorIsAnchor()) { 2185 result.setType(HitTestResult.SRC_ANCHOR_TYPE); 2186 result.setExtra(text); 2187 } 2188 } 2189 } 2190 } else if (fallback != null) { 2191 /* If webkit causes a rebuild while the long press is in progress, 2192 * the cursor node may be reset, even if it is still around. This 2193 * uses the cursor node saved when the touch began. Since the 2194 * nativeImageURI below only changes the result if it is successful, 2195 * this uses the data beneath the touch if available or the original 2196 * tap data otherwise. 2197 */ 2198 Log.v(LOGTAG, "hitTestResult use fallback"); 2199 result = fallback; 2200 } 2201 int type = result.getType(); 2202 if (type == HitTestResult.UNKNOWN_TYPE 2203 || type == HitTestResult.SRC_ANCHOR_TYPE) { 2204 // Now check to see if it is an image. 2205 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 2206 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 2207 String text = nativeImageURI(contentX, contentY); 2208 if (text != null) { 2209 result.setType(type == HitTestResult.UNKNOWN_TYPE ? 2210 HitTestResult.IMAGE_TYPE : 2211 HitTestResult.SRC_IMAGE_ANCHOR_TYPE); 2212 result.setExtra(text); 2213 } 2214 } 2215 return result; 2216 } 2217 2218 // Called by JNI when the DOM has changed the focus. Clear the focus so 2219 // that new keys will go to the newly focused field 2220 private void domChangedFocus() { 2221 if (inEditingMode()) { 2222 mPrivateHandler.obtainMessage(DOM_FOCUS_CHANGED).sendToTarget(); 2223 } 2224 } 2225 /** 2226 * Request the anchor or image element URL at the last tapped point. 2227 * If hrefMsg is null, this method returns immediately and does not 2228 * dispatch hrefMsg to its target. If the tapped point hits an image, 2229 * an anchor, or an image in an anchor, the message associates 2230 * strings in named keys in its data. The value paired with the key 2231 * may be an empty string. 2232 * 2233 * @param hrefMsg This message will be dispatched with the result of the 2234 * request. The message data contains three keys: 2235 * - "url" returns the anchor's href attribute. 2236 * - "title" returns the anchor's text. 2237 * - "src" returns the image's src attribute. 2238 */ 2239 public void requestFocusNodeHref(Message hrefMsg) { 2240 if (hrefMsg == null) { 2241 return; 2242 } 2243 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 2244 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 2245 mWebViewCore.sendMessage(EventHub.REQUEST_CURSOR_HREF, 2246 contentX, contentY, hrefMsg); 2247 } 2248 2249 /** 2250 * Request the url of the image last touched by the user. msg will be sent 2251 * to its target with a String representing the url as its object. 2252 * 2253 * @param msg This message will be dispatched with the result of the request 2254 * as the data member with "url" as key. The result can be null. 2255 */ 2256 public void requestImageRef(Message msg) { 2257 if (0 == mNativeClass) return; // client isn't initialized 2258 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 2259 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 2260 String ref = nativeImageURI(contentX, contentY); 2261 Bundle data = msg.getData(); 2262 data.putString("url", ref); 2263 msg.setData(data); 2264 msg.sendToTarget(); 2265 } 2266 2267 static int pinLoc(int x, int viewMax, int docMax) { 2268// Log.d(LOGTAG, "-- pinLoc " + x + " " + viewMax + " " + docMax); 2269 if (docMax < viewMax) { // the doc has room on the sides for "blank" 2270 // pin the short document to the top/left of the screen 2271 x = 0; 2272// Log.d(LOGTAG, "--- center " + x); 2273 } else if (x < 0) { 2274 x = 0; 2275// Log.d(LOGTAG, "--- zero"); 2276 } else if (x + viewMax > docMax) { 2277 x = docMax - viewMax; 2278// Log.d(LOGTAG, "--- pin " + x); 2279 } 2280 return x; 2281 } 2282 2283 // Expects x in view coordinates 2284 int pinLocX(int x) { 2285 if (mInOverScrollMode) return x; 2286 return pinLoc(x, getViewWidth(), computeRealHorizontalScrollRange()); 2287 } 2288 2289 // Expects y in view coordinates 2290 int pinLocY(int y) { 2291 if (mInOverScrollMode) return y; 2292 return pinLoc(y, getViewHeightWithTitle(), 2293 computeRealVerticalScrollRange() + getTitleHeight()); 2294 } 2295 2296 /** 2297 * A title bar which is embedded in this WebView, and scrolls along with it 2298 * vertically, but not horizontally. 2299 */ 2300 private View mTitleBar; 2301 2302 /** 2303 * Add or remove a title bar to be embedded into the WebView, and scroll 2304 * along with it vertically, while remaining in view horizontally. Pass 2305 * null to remove the title bar from the WebView, and return to drawing 2306 * the WebView normally without translating to account for the title bar. 2307 * @hide 2308 */ 2309 public void setEmbeddedTitleBar(View v) { 2310 if (mTitleBar == v) return; 2311 if (mTitleBar != null) { 2312 removeView(mTitleBar); 2313 } 2314 if (null != v) { 2315 addView(v, new AbsoluteLayout.LayoutParams( 2316 ViewGroup.LayoutParams.MATCH_PARENT, 2317 ViewGroup.LayoutParams.WRAP_CONTENT, 0, 0)); 2318 } 2319 mTitleBar = v; 2320 } 2321 2322 /** 2323 * Given a distance in view space, convert it to content space. Note: this 2324 * does not reflect translation, just scaling, so this should not be called 2325 * with coordinates, but should be called for dimensions like width or 2326 * height. 2327 */ 2328 private int viewToContentDimension(int d) { 2329 return Math.round(d * mZoomManager.getInvScale()); 2330 } 2331 2332 /** 2333 * Given an x coordinate in view space, convert it to content space. Also 2334 * may be used for absolute heights (such as for the WebTextView's 2335 * textSize, which is unaffected by the height of the title bar). 2336 */ 2337 /*package*/ int viewToContentX(int x) { 2338 return viewToContentDimension(x); 2339 } 2340 2341 /** 2342 * Given a y coordinate in view space, convert it to content space. 2343 * Takes into account the height of the title bar if there is one 2344 * embedded into the WebView. 2345 */ 2346 /*package*/ int viewToContentY(int y) { 2347 return viewToContentDimension(y - getTitleHeight()); 2348 } 2349 2350 /** 2351 * Given a x coordinate in view space, convert it to content space. 2352 * Returns the result as a float. 2353 */ 2354 private float viewToContentXf(int x) { 2355 return x * mZoomManager.getInvScale(); 2356 } 2357 2358 /** 2359 * Given a y coordinate in view space, convert it to content space. 2360 * Takes into account the height of the title bar if there is one 2361 * embedded into the WebView. Returns the result as a float. 2362 */ 2363 private float viewToContentYf(int y) { 2364 return (y - getTitleHeight()) * mZoomManager.getInvScale(); 2365 } 2366 2367 /** 2368 * Given a distance in content space, convert it to view space. Note: this 2369 * does not reflect translation, just scaling, so this should not be called 2370 * with coordinates, but should be called for dimensions like width or 2371 * height. 2372 */ 2373 /*package*/ int contentToViewDimension(int d) { 2374 return Math.round(d * mZoomManager.getScale()); 2375 } 2376 2377 /** 2378 * Given an x coordinate in content space, convert it to view 2379 * space. 2380 */ 2381 /*package*/ int contentToViewX(int x) { 2382 return contentToViewDimension(x); 2383 } 2384 2385 /** 2386 * Given a y coordinate in content space, convert it to view 2387 * space. Takes into account the height of the title bar. 2388 */ 2389 /*package*/ int contentToViewY(int y) { 2390 return contentToViewDimension(y) + getTitleHeight(); 2391 } 2392 2393 private Rect contentToViewRect(Rect x) { 2394 return new Rect(contentToViewX(x.left), contentToViewY(x.top), 2395 contentToViewX(x.right), contentToViewY(x.bottom)); 2396 } 2397 2398 /* To invalidate a rectangle in content coordinates, we need to transform 2399 the rect into view coordinates, so we can then call invalidate(...). 2400 2401 Normally, we would just call contentToView[XY](...), which eventually 2402 calls Math.round(coordinate * mActualScale). However, for invalidates, 2403 we need to account for the slop that occurs with antialiasing. To 2404 address that, we are a little more liberal in the size of the rect that 2405 we invalidate. 2406 2407 This liberal calculation calls floor() for the top/left, and ceil() for 2408 the bottom/right coordinates. This catches the possible extra pixels of 2409 antialiasing that we might have missed with just round(). 2410 */ 2411 2412 // Called by JNI to invalidate the View, given rectangle coordinates in 2413 // content space 2414 private void viewInvalidate(int l, int t, int r, int b) { 2415 final float scale = mZoomManager.getScale(); 2416 final int dy = getTitleHeight(); 2417 invalidate((int)Math.floor(l * scale), 2418 (int)Math.floor(t * scale) + dy, 2419 (int)Math.ceil(r * scale), 2420 (int)Math.ceil(b * scale) + dy); 2421 } 2422 2423 // Called by JNI to invalidate the View after a delay, given rectangle 2424 // coordinates in content space 2425 private void viewInvalidateDelayed(long delay, int l, int t, int r, int b) { 2426 final float scale = mZoomManager.getScale(); 2427 final int dy = getTitleHeight(); 2428 postInvalidateDelayed(delay, 2429 (int)Math.floor(l * scale), 2430 (int)Math.floor(t * scale) + dy, 2431 (int)Math.ceil(r * scale), 2432 (int)Math.ceil(b * scale) + dy); 2433 } 2434 2435 private void invalidateContentRect(Rect r) { 2436 viewInvalidate(r.left, r.top, r.right, r.bottom); 2437 } 2438 2439 // stop the scroll animation, and don't let a subsequent fling add 2440 // to the existing velocity 2441 private void abortAnimation() { 2442 mScroller.abortAnimation(); 2443 mLastVelocity = 0; 2444 } 2445 2446 /* call from webcoreview.draw(), so we're still executing in the UI thread 2447 */ 2448 private void recordNewContentSize(int w, int h, boolean updateLayout) { 2449 2450 // premature data from webkit, ignore 2451 if ((w | h) == 0) { 2452 return; 2453 } 2454 2455 // don't abort a scroll animation if we didn't change anything 2456 if (mContentWidth != w || mContentHeight != h) { 2457 // record new dimensions 2458 mContentWidth = w; 2459 mContentHeight = h; 2460 // If history Picture is drawn, don't update scroll. They will be 2461 // updated when we get out of that mode. 2462 if (!mDrawHistory) { 2463 // repin our scroll, taking into account the new content size 2464 updateScrollCoordinates(pinLocX(mScrollX), pinLocY(mScrollY)); 2465 if (!mScroller.isFinished()) { 2466 // We are in the middle of a scroll. Repin the final scroll 2467 // position. 2468 mScroller.setFinalX(pinLocX(mScroller.getFinalX())); 2469 mScroller.setFinalY(pinLocY(mScroller.getFinalY())); 2470 } 2471 } 2472 } 2473 contentSizeChanged(updateLayout); 2474 } 2475 2476 // Used to avoid sending many visible rect messages. 2477 private Rect mLastVisibleRectSent; 2478 private Rect mLastGlobalRect; 2479 2480 Rect sendOurVisibleRect() { 2481 if (mZoomManager.isPreventingWebkitUpdates()) return mLastVisibleRectSent; 2482 Rect rect = new Rect(); 2483 calcOurContentVisibleRect(rect); 2484 // Rect.equals() checks for null input. 2485 if (!rect.equals(mLastVisibleRectSent)) { 2486 Point pos = new Point(rect.left, rect.top); 2487 mWebViewCore.sendMessage(EventHub.SET_SCROLL_OFFSET, 2488 nativeMoveGeneration(), mUserScroll ? 1 : 0, pos); 2489 mLastVisibleRectSent = rect; 2490 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 2491 } 2492 Rect globalRect = new Rect(); 2493 if (getGlobalVisibleRect(globalRect) 2494 && !globalRect.equals(mLastGlobalRect)) { 2495 if (DebugFlags.WEB_VIEW) { 2496 Log.v(LOGTAG, "sendOurVisibleRect=(" + globalRect.left + "," 2497 + globalRect.top + ",r=" + globalRect.right + ",b=" 2498 + globalRect.bottom); 2499 } 2500 // TODO: the global offset is only used by windowRect() 2501 // in ChromeClientAndroid ; other clients such as touch 2502 // and mouse events could return view + screen relative points. 2503 mWebViewCore.sendMessage(EventHub.SET_GLOBAL_BOUNDS, globalRect); 2504 mLastGlobalRect = globalRect; 2505 } 2506 return rect; 2507 } 2508 2509 // Sets r to be the visible rectangle of our webview in view coordinates 2510 private void calcOurVisibleRect(Rect r) { 2511 Point p = new Point(); 2512 getGlobalVisibleRect(r, p); 2513 r.offset(-p.x, -p.y); 2514 } 2515 2516 // Sets r to be our visible rectangle in content coordinates 2517 private void calcOurContentVisibleRect(Rect r) { 2518 calcOurVisibleRect(r); 2519 r.left = viewToContentX(r.left); 2520 // viewToContentY will remove the total height of the title bar. Add 2521 // the visible height back in to account for the fact that if the title 2522 // bar is partially visible, the part of the visible rect which is 2523 // displaying our content is displaced by that amount. 2524 r.top = viewToContentY(r.top + getVisibleTitleHeight()); 2525 r.right = viewToContentX(r.right); 2526 r.bottom = viewToContentY(r.bottom); 2527 } 2528 2529 // Sets r to be our visible rectangle in content coordinates. We use this 2530 // method on the native side to compute the position of the fixed layers. 2531 // Uses floating coordinates (necessary to correctly place elements when 2532 // the scale factor is not 1) 2533 private void calcOurContentVisibleRectF(RectF r) { 2534 Rect ri = new Rect(0,0,0,0); 2535 calcOurVisibleRect(ri); 2536 r.left = viewToContentXf(ri.left); 2537 // viewToContentY will remove the total height of the title bar. Add 2538 // the visible height back in to account for the fact that if the title 2539 // bar is partially visible, the part of the visible rect which is 2540 // displaying our content is displaced by that amount. 2541 r.top = viewToContentYf(ri.top + getVisibleTitleHeight()); 2542 r.right = viewToContentXf(ri.right); 2543 r.bottom = viewToContentYf(ri.bottom); 2544 } 2545 2546 static class ViewSizeData { 2547 int mWidth; 2548 int mHeight; 2549 int mTextWrapWidth; 2550 int mAnchorX; 2551 int mAnchorY; 2552 float mScale; 2553 boolean mIgnoreHeight; 2554 } 2555 2556 /** 2557 * Compute unzoomed width and height, and if they differ from the last 2558 * values we sent, send them to webkit (to be used as new viewport) 2559 * 2560 * @param force ensures that the message is sent to webkit even if the width 2561 * or height has not changed since the last message 2562 * 2563 * @return true if new values were sent 2564 */ 2565 boolean sendViewSizeZoom(boolean force) { 2566 if (mZoomManager.isPreventingWebkitUpdates()) return false; 2567 2568 int viewWidth = getViewWidth(); 2569 int newWidth = Math.round(viewWidth * mZoomManager.getInvScale()); 2570 int newHeight = Math.round((getViewHeightWithTitle() - getTitleHeight()) * mZoomManager.getInvScale()); 2571 /* 2572 * Because the native side may have already done a layout before the 2573 * View system was able to measure us, we have to send a height of 0 to 2574 * remove excess whitespace when we grow our width. This will trigger a 2575 * layout and a change in content size. This content size change will 2576 * mean that contentSizeChanged will either call this method directly or 2577 * indirectly from onSizeChanged. 2578 */ 2579 if (newWidth > mLastWidthSent && mWrapContent) { 2580 newHeight = 0; 2581 } 2582 // Avoid sending another message if the dimensions have not changed. 2583 if (newWidth != mLastWidthSent || newHeight != mLastHeightSent || force) { 2584 ViewSizeData data = new ViewSizeData(); 2585 data.mWidth = newWidth; 2586 data.mHeight = newHeight; 2587 data.mTextWrapWidth = Math.round(viewWidth / mZoomManager.getTextWrapScale()); 2588 data.mScale = mZoomManager.getScale(); 2589 data.mIgnoreHeight = mZoomManager.isFixedLengthAnimationInProgress() 2590 && !mHeightCanMeasure; 2591 data.mAnchorX = mZoomManager.getDocumentAnchorX(); 2592 data.mAnchorY = mZoomManager.getDocumentAnchorY(); 2593 mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, data); 2594 mLastWidthSent = newWidth; 2595 mLastHeightSent = newHeight; 2596 mZoomManager.clearDocumentAnchor(); 2597 return true; 2598 } 2599 return false; 2600 } 2601 2602 private int computeRealHorizontalScrollRange() { 2603 if (mDrawHistory) { 2604 return mHistoryWidth; 2605 } else if (mHorizontalScrollBarMode == SCROLLBAR_ALWAYSOFF 2606 && !mZoomManager.canZoomOut()) { 2607 // only honor the scrollbar mode when it is at minimum zoom level 2608 return computeHorizontalScrollExtent(); 2609 } else { 2610 // to avoid rounding error caused unnecessary scrollbar, use floor 2611 return (int) Math.floor(mContentWidth * mZoomManager.getScale()); 2612 } 2613 } 2614 2615 @Override 2616 protected int computeHorizontalScrollRange() { 2617 int range = computeRealHorizontalScrollRange(); 2618 2619 // Adjust reported range if overscrolled to compress the scroll bars 2620 final int scrollX = mScrollX; 2621 final int overscrollRight = computeMaxScrollX(); 2622 if (scrollX < 0) { 2623 range -= scrollX; 2624 } else if (scrollX > overscrollRight) { 2625 range += scrollX - overscrollRight; 2626 } 2627 2628 return range; 2629 } 2630 2631 @Override 2632 protected int computeHorizontalScrollOffset() { 2633 return Math.max(mScrollX, 0); 2634 } 2635 2636 private int computeRealVerticalScrollRange() { 2637 if (mDrawHistory) { 2638 return mHistoryHeight; 2639 } else if (mVerticalScrollBarMode == SCROLLBAR_ALWAYSOFF 2640 && !mZoomManager.canZoomOut()) { 2641 // only honor the scrollbar mode when it is at minimum zoom level 2642 return computeVerticalScrollExtent(); 2643 } else { 2644 // to avoid rounding error caused unnecessary scrollbar, use floor 2645 return (int) Math.floor(mContentHeight * mZoomManager.getScale()); 2646 } 2647 } 2648 2649 @Override 2650 protected int computeVerticalScrollRange() { 2651 int range = computeRealVerticalScrollRange(); 2652 2653 // Adjust reported range if overscrolled to compress the scroll bars 2654 final int scrollY = mScrollY; 2655 final int overscrollBottom = computeMaxScrollY(); 2656 if (scrollY < 0) { 2657 range -= scrollY; 2658 } else if (scrollY > overscrollBottom) { 2659 range += scrollY - overscrollBottom; 2660 } 2661 2662 return range; 2663 } 2664 2665 @Override 2666 protected int computeVerticalScrollOffset() { 2667 return Math.max(mScrollY - getTitleHeight(), 0); 2668 } 2669 2670 @Override 2671 protected int computeVerticalScrollExtent() { 2672 return getViewHeight(); 2673 } 2674 2675 /** @hide */ 2676 @Override 2677 protected void onDrawVerticalScrollBar(Canvas canvas, 2678 Drawable scrollBar, 2679 int l, int t, int r, int b) { 2680 if (mScrollY < 0) { 2681 t -= mScrollY; 2682 } 2683 scrollBar.setBounds(l, t + getVisibleTitleHeight(), r, b); 2684 scrollBar.draw(canvas); 2685 } 2686 2687 @Override 2688 protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, 2689 boolean clampedY) { 2690 // Special-case layer scrolling so that we do not trigger normal scroll 2691 // updating. 2692 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 2693 nativeScrollLayer(mScrollingLayer, scrollX, scrollY); 2694 mScrollingLayerRect.left = scrollX; 2695 mScrollingLayerRect.top = scrollY; 2696 invalidate(); 2697 return; 2698 } 2699 mInOverScrollMode = false; 2700 int maxX = computeMaxScrollX(); 2701 int maxY = computeMaxScrollY(); 2702 if (maxX == 0) { 2703 // do not over scroll x if the page just fits the screen 2704 scrollX = pinLocX(scrollX); 2705 } else if (scrollX < 0 || scrollX > maxX) { 2706 mInOverScrollMode = true; 2707 } 2708 if (scrollY < 0 || scrollY > maxY) { 2709 mInOverScrollMode = true; 2710 } 2711 2712 int oldX = mScrollX; 2713 int oldY = mScrollY; 2714 2715 super.scrollTo(scrollX, scrollY); 2716 2717 if (mOverScrollGlow != null) { 2718 mOverScrollGlow.pullGlow(mScrollX, mScrollY, oldX, oldY, maxX, maxY); 2719 } 2720 } 2721 2722 /** 2723 * Get the url for the current page. This is not always the same as the url 2724 * passed to WebViewClient.onPageStarted because although the load for 2725 * that url has begun, the current page may not have changed. 2726 * @return The url for the current page. 2727 */ 2728 public String getUrl() { 2729 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2730 return h != null ? h.getUrl() : null; 2731 } 2732 2733 /** 2734 * Get the original url for the current page. This is not always the same 2735 * as the url passed to WebViewClient.onPageStarted because although the 2736 * load for that url has begun, the current page may not have changed. 2737 * Also, there may have been redirects resulting in a different url to that 2738 * originally requested. 2739 * @return The url that was originally requested for the current page. 2740 */ 2741 public String getOriginalUrl() { 2742 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2743 return h != null ? h.getOriginalUrl() : null; 2744 } 2745 2746 /** 2747 * Get the title for the current page. This is the title of the current page 2748 * until WebViewClient.onReceivedTitle is called. 2749 * @return The title for the current page. 2750 */ 2751 public String getTitle() { 2752 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2753 return h != null ? h.getTitle() : null; 2754 } 2755 2756 /** 2757 * Get the favicon for the current page. This is the favicon of the current 2758 * page until WebViewClient.onReceivedIcon is called. 2759 * @return The favicon for the current page. 2760 */ 2761 public Bitmap getFavicon() { 2762 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2763 return h != null ? h.getFavicon() : null; 2764 } 2765 2766 /** 2767 * Get the touch icon url for the apple-touch-icon <link> element, or 2768 * a URL on this site's server pointing to the standard location of a 2769 * touch icon. 2770 * @hide 2771 */ 2772 public String getTouchIconUrl() { 2773 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2774 return h != null ? h.getTouchIconUrl() : null; 2775 } 2776 2777 /** 2778 * Get the progress for the current page. 2779 * @return The progress for the current page between 0 and 100. 2780 */ 2781 public int getProgress() { 2782 return mCallbackProxy.getProgress(); 2783 } 2784 2785 /** 2786 * @return the height of the HTML content. 2787 */ 2788 public int getContentHeight() { 2789 return mContentHeight; 2790 } 2791 2792 /** 2793 * @return the width of the HTML content. 2794 * @hide 2795 */ 2796 public int getContentWidth() { 2797 return mContentWidth; 2798 } 2799 2800 /** 2801 * Pause all layout, parsing, and JavaScript timers for all webviews. This 2802 * is a global requests, not restricted to just this webview. This can be 2803 * useful if the application has been paused. 2804 */ 2805 public void pauseTimers() { 2806 mWebViewCore.sendMessage(EventHub.PAUSE_TIMERS); 2807 } 2808 2809 /** 2810 * Resume all layout, parsing, and JavaScript timers for all webviews. 2811 * This will resume dispatching all timers. 2812 */ 2813 public void resumeTimers() { 2814 mWebViewCore.sendMessage(EventHub.RESUME_TIMERS); 2815 } 2816 2817 /** 2818 * Call this to pause any extra processing associated with this WebView and 2819 * its associated DOM, plugins, JavaScript etc. For example, if the WebView 2820 * is taken offscreen, this could be called to reduce unnecessary CPU or 2821 * network traffic. When the WebView is again "active", call onResume(). 2822 * 2823 * Note that this differs from pauseTimers(), which affects all WebViews. 2824 */ 2825 public void onPause() { 2826 if (!mIsPaused) { 2827 mIsPaused = true; 2828 mWebViewCore.sendMessage(EventHub.ON_PAUSE); 2829 } 2830 } 2831 2832 /** 2833 * Call this to resume a WebView after a previous call to onPause(). 2834 */ 2835 public void onResume() { 2836 if (mIsPaused) { 2837 mIsPaused = false; 2838 mWebViewCore.sendMessage(EventHub.ON_RESUME); 2839 } 2840 } 2841 2842 /** 2843 * Returns true if the view is paused, meaning onPause() was called. Calling 2844 * onResume() sets the paused state back to false. 2845 * @hide 2846 */ 2847 public boolean isPaused() { 2848 return mIsPaused; 2849 } 2850 2851 /** 2852 * Call this to inform the view that memory is low so that it can 2853 * free any available memory. 2854 */ 2855 public void freeMemory() { 2856 mWebViewCore.sendMessage(EventHub.FREE_MEMORY); 2857 } 2858 2859 /** 2860 * Clear the resource cache. Note that the cache is per-application, so 2861 * this will clear the cache for all WebViews used. 2862 * 2863 * @param includeDiskFiles If false, only the RAM cache is cleared. 2864 */ 2865 public void clearCache(boolean includeDiskFiles) { 2866 // Note: this really needs to be a static method as it clears cache for all 2867 // WebView. But we need mWebViewCore to send message to WebCore thread, so 2868 // we can't make this static. 2869 mWebViewCore.sendMessage(EventHub.CLEAR_CACHE, 2870 includeDiskFiles ? 1 : 0, 0); 2871 } 2872 2873 /** 2874 * Make sure that clearing the form data removes the adapter from the 2875 * currently focused textfield if there is one. 2876 */ 2877 public void clearFormData() { 2878 if (inEditingMode()) { 2879 AutoCompleteAdapter adapter = null; 2880 mWebTextView.setAdapterCustom(adapter); 2881 } 2882 } 2883 2884 /** 2885 * Tell the WebView to clear its internal back/forward list. 2886 */ 2887 public void clearHistory() { 2888 mCallbackProxy.getBackForwardList().setClearPending(); 2889 mWebViewCore.sendMessage(EventHub.CLEAR_HISTORY); 2890 } 2891 2892 /** 2893 * Clear the SSL preferences table stored in response to proceeding with SSL 2894 * certificate errors. 2895 */ 2896 public void clearSslPreferences() { 2897 mWebViewCore.sendMessage(EventHub.CLEAR_SSL_PREF_TABLE); 2898 } 2899 2900 /** 2901 * Return the WebBackForwardList for this WebView. This contains the 2902 * back/forward list for use in querying each item in the history stack. 2903 * This is a copy of the private WebBackForwardList so it contains only a 2904 * snapshot of the current state. Multiple calls to this method may return 2905 * different objects. The object returned from this method will not be 2906 * updated to reflect any new state. 2907 */ 2908 public WebBackForwardList copyBackForwardList() { 2909 return mCallbackProxy.getBackForwardList().clone(); 2910 } 2911 2912 /* 2913 * Highlight and scroll to the next occurance of String in findAll. 2914 * Wraps the page infinitely, and scrolls. Must be called after 2915 * calling findAll. 2916 * 2917 * @param forward Direction to search. 2918 */ 2919 public void findNext(boolean forward) { 2920 if (0 == mNativeClass) return; // client isn't initialized 2921 nativeFindNext(forward); 2922 } 2923 2924 /* 2925 * Find all instances of find on the page and highlight them. 2926 * @param find String to find. 2927 * @return int The number of occurances of the String "find" 2928 * that were found. 2929 */ 2930 public int findAll(String find) { 2931 if (0 == mNativeClass) return 0; // client isn't initialized 2932 int result = find != null ? nativeFindAll(find.toLowerCase(), 2933 find.toUpperCase(), find.equalsIgnoreCase(mLastFind)) : 0; 2934 invalidate(); 2935 mLastFind = find; 2936 return result; 2937 } 2938 2939 /** 2940 * Start an ActionMode for finding text in this WebView. 2941 * @param text If non-null, will be the initial text to search for. 2942 * Otherwise, the last String searched for in this WebView will 2943 * be used to start. 2944 */ 2945 public void showFindDialog(String text) { 2946 mFindCallback = new FindActionModeCallback(mContext); 2947 setFindIsUp(true); 2948 mFindCallback.setWebView(this); 2949 View titleBar = mTitleBar; 2950 startActionMode(mFindCallback); 2951 if (text == null) { 2952 text = mLastFind; 2953 } 2954 if (text != null) { 2955 mFindCallback.setText(text); 2956 } 2957 } 2958 2959 /** 2960 * Keep track of the find callback so that we can remove its titlebar if 2961 * necessary. 2962 */ 2963 private FindActionModeCallback mFindCallback; 2964 2965 /** 2966 * Toggle whether the find dialog is showing, for both native and Java. 2967 */ 2968 private void setFindIsUp(boolean isUp) { 2969 mFindIsUp = isUp; 2970 if (0 == mNativeClass) return; // client isn't initialized 2971 nativeSetFindIsUp(isUp); 2972 } 2973 2974 /** 2975 * Return the index of the currently highlighted match. 2976 */ 2977 int findIndex() { 2978 if (0 == mNativeClass) return -1; 2979 return nativeFindIndex(); 2980 } 2981 2982 // Used to know whether the find dialog is open. Affects whether 2983 // or not we draw the highlights for matches. 2984 private boolean mFindIsUp; 2985 2986 // Keep track of the last string sent, so we can search again when find is 2987 // reopened. 2988 private String mLastFind; 2989 2990 /** 2991 * Return the first substring consisting of the address of a physical 2992 * location. Currently, only addresses in the United States are detected, 2993 * and consist of: 2994 * - a house number 2995 * - a street name 2996 * - a street type (Road, Circle, etc), either spelled out or abbreviated 2997 * - a city name 2998 * - a state or territory, either spelled out or two-letter abbr. 2999 * - an optional 5 digit or 9 digit zip code. 3000 * 3001 * All names must be correctly capitalized, and the zip code, if present, 3002 * must be valid for the state. The street type must be a standard USPS 3003 * spelling or abbreviation. The state or territory must also be spelled 3004 * or abbreviated using USPS standards. The house number may not exceed 3005 * five digits. 3006 * @param addr The string to search for addresses. 3007 * 3008 * @return the address, or if no address is found, return null. 3009 */ 3010 public static String findAddress(String addr) { 3011 return findAddress(addr, false); 3012 } 3013 3014 /** 3015 * @hide 3016 * Return the first substring consisting of the address of a physical 3017 * location. Currently, only addresses in the United States are detected, 3018 * and consist of: 3019 * - a house number 3020 * - a street name 3021 * - a street type (Road, Circle, etc), either spelled out or abbreviated 3022 * - a city name 3023 * - a state or territory, either spelled out or two-letter abbr. 3024 * - an optional 5 digit or 9 digit zip code. 3025 * 3026 * Names are optionally capitalized, and the zip code, if present, 3027 * must be valid for the state. The street type must be a standard USPS 3028 * spelling or abbreviation. The state or territory must also be spelled 3029 * or abbreviated using USPS standards. The house number may not exceed 3030 * five digits. 3031 * @param addr The string to search for addresses. 3032 * @param caseInsensitive addr Set to true to make search ignore case. 3033 * 3034 * @return the address, or if no address is found, return null. 3035 */ 3036 public static String findAddress(String addr, boolean caseInsensitive) { 3037 return WebViewCore.nativeFindAddress(addr, caseInsensitive); 3038 } 3039 3040 /* 3041 * Clear the highlighting surrounding text matches created by findAll. 3042 */ 3043 public void clearMatches() { 3044 if (mNativeClass == 0) 3045 return; 3046 nativeSetFindIsEmpty(); 3047 invalidate(); 3048 } 3049 3050 /** 3051 * Called when the find ActionMode ends. 3052 */ 3053 void notifyFindDialogDismissed() { 3054 mFindCallback = null; 3055 if (mWebViewCore == null) { 3056 return; 3057 } 3058 clearMatches(); 3059 setFindIsUp(false); 3060 // Now that the dialog has been removed, ensure that we scroll to a 3061 // location that is not beyond the end of the page. 3062 pinScrollTo(mScrollX, mScrollY, false, 0); 3063 invalidate(); 3064 } 3065 3066 /** 3067 * Query the document to see if it contains any image references. The 3068 * message object will be dispatched with arg1 being set to 1 if images 3069 * were found and 0 if the document does not reference any images. 3070 * @param response The message that will be dispatched with the result. 3071 */ 3072 public void documentHasImages(Message response) { 3073 if (response == null) { 3074 return; 3075 } 3076 mWebViewCore.sendMessage(EventHub.DOC_HAS_IMAGES, response); 3077 } 3078 3079 /** 3080 * Request the scroller to abort any ongoing animation 3081 * 3082 * @hide 3083 */ 3084 public void stopScroll() { 3085 mScroller.forceFinished(true); 3086 mLastVelocity = 0; 3087 } 3088 3089 @Override 3090 public void computeScroll() { 3091 if (mScroller.computeScrollOffset()) { 3092 int oldX = mScrollX; 3093 int oldY = mScrollY; 3094 int x = mScroller.getCurrX(); 3095 int y = mScroller.getCurrY(); 3096 invalidate(); // So we draw again 3097 3098 if (!mScroller.isFinished()) { 3099 int rangeX = computeMaxScrollX(); 3100 int rangeY = computeMaxScrollY(); 3101 int overflingDistance = mOverflingDistance; 3102 3103 // Use the layer's scroll data if needed. 3104 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 3105 oldX = mScrollingLayerRect.left; 3106 oldY = mScrollingLayerRect.top; 3107 rangeX = mScrollingLayerRect.right; 3108 rangeY = mScrollingLayerRect.bottom; 3109 // No overscrolling for layers. 3110 overflingDistance = 0; 3111 } 3112 3113 overScrollBy(x - oldX, y - oldY, oldX, oldY, 3114 rangeX, rangeY, 3115 overflingDistance, overflingDistance, false); 3116 3117 if (mOverScrollGlow != null) { 3118 mOverScrollGlow.absorbGlow(x, y, oldX, oldY, rangeX, rangeY); 3119 } 3120 } else { 3121 if (mTouchMode != TOUCH_DRAG_LAYER_MODE) { 3122 mScrollX = x; 3123 mScrollY = y; 3124 } else { 3125 // Update the layer position instead of WebView. 3126 nativeScrollLayer(mScrollingLayer, x, y); 3127 mScrollingLayerRect.left = x; 3128 mScrollingLayerRect.top = y; 3129 } 3130 abortAnimation(); 3131 mPrivateHandler.removeMessages(RESUME_WEBCORE_PRIORITY); 3132 WebViewCore.resumePriority(); 3133 if (!mSelectingText) { 3134 WebViewCore.resumeUpdatePicture(mWebViewCore); 3135 } 3136 } 3137 } else { 3138 super.computeScroll(); 3139 } 3140 } 3141 3142 private static int computeDuration(int dx, int dy) { 3143 int distance = Math.max(Math.abs(dx), Math.abs(dy)); 3144 int duration = distance * 1000 / STD_SPEED; 3145 return Math.min(duration, MAX_DURATION); 3146 } 3147 3148 // helper to pin the scrollBy parameters (already in view coordinates) 3149 // returns true if the scroll was changed 3150 private boolean pinScrollBy(int dx, int dy, boolean animate, int animationDuration) { 3151 return pinScrollTo(mScrollX + dx, mScrollY + dy, animate, animationDuration); 3152 } 3153 // helper to pin the scrollTo parameters (already in view coordinates) 3154 // returns true if the scroll was changed 3155 private boolean pinScrollTo(int x, int y, boolean animate, int animationDuration) { 3156 x = pinLocX(x); 3157 y = pinLocY(y); 3158 int dx = x - mScrollX; 3159 int dy = y - mScrollY; 3160 3161 if ((dx | dy) == 0) { 3162 return false; 3163 } 3164 abortAnimation(); 3165 if (animate) { 3166 // Log.d(LOGTAG, "startScroll: " + dx + " " + dy); 3167 mScroller.startScroll(mScrollX, mScrollY, dx, dy, 3168 animationDuration > 0 ? animationDuration : computeDuration(dx, dy)); 3169 awakenScrollBars(mScroller.getDuration()); 3170 invalidate(); 3171 } else { 3172 scrollTo(x, y); 3173 } 3174 return true; 3175 } 3176 3177 // Scale from content to view coordinates, and pin. 3178 // Also called by jni webview.cpp 3179 private boolean setContentScrollBy(int cx, int cy, boolean animate) { 3180 if (mDrawHistory) { 3181 // disallow WebView to change the scroll position as History Picture 3182 // is used in the view system. 3183 // TODO: as we switchOutDrawHistory when trackball or navigation 3184 // keys are hit, this should be safe. Right? 3185 return false; 3186 } 3187 cx = contentToViewDimension(cx); 3188 cy = contentToViewDimension(cy); 3189 if (mHeightCanMeasure) { 3190 // move our visible rect according to scroll request 3191 if (cy != 0) { 3192 Rect tempRect = new Rect(); 3193 calcOurVisibleRect(tempRect); 3194 tempRect.offset(cx, cy); 3195 requestRectangleOnScreen(tempRect); 3196 } 3197 // FIXME: We scroll horizontally no matter what because currently 3198 // ScrollView and ListView will not scroll horizontally. 3199 // FIXME: Why do we only scroll horizontally if there is no 3200 // vertical scroll? 3201// Log.d(LOGTAG, "setContentScrollBy cy=" + cy); 3202 return cy == 0 && cx != 0 && pinScrollBy(cx, 0, animate, 0); 3203 } else { 3204 return pinScrollBy(cx, cy, animate, 0); 3205 } 3206 } 3207 3208 /** 3209 * Called by CallbackProxy when the page starts loading. 3210 * @param url The URL of the page which has started loading. 3211 */ 3212 /* package */ void onPageStarted(String url) { 3213 // every time we start a new page, we want to reset the 3214 // WebView certificate: if the new site is secure, we 3215 // will reload it and get a new certificate set; 3216 // if the new site is not secure, the certificate must be 3217 // null, and that will be the case 3218 setCertificate(null); 3219 3220 // reset the flag since we set to true in if need after 3221 // loading is see onPageFinished(Url) 3222 mAccessibilityScriptInjected = false; 3223 } 3224 3225 /** 3226 * Called by CallbackProxy when the page finishes loading. 3227 * @param url The URL of the page which has finished loading. 3228 */ 3229 /* package */ void onPageFinished(String url) { 3230 if (mPageThatNeedsToSlideTitleBarOffScreen != null) { 3231 // If the user is now on a different page, or has scrolled the page 3232 // past the point where the title bar is offscreen, ignore the 3233 // scroll request. 3234 if (mPageThatNeedsToSlideTitleBarOffScreen.equals(url) 3235 && mScrollX == 0 && mScrollY == 0) { 3236 pinScrollTo(0, mYDistanceToSlideTitleOffScreen, true, 3237 SLIDE_TITLE_DURATION); 3238 } 3239 mPageThatNeedsToSlideTitleBarOffScreen = null; 3240 } 3241 3242 injectAccessibilityForUrl(url); 3243 } 3244 3245 /** 3246 * This method injects accessibility in the loaded document if accessibility 3247 * is enabled. If JavaScript is enabled we try to inject a URL specific script. 3248 * If no URL specific script is found or JavaScript is disabled we fallback to 3249 * the default {@link AccessibilityInjector} implementation. 3250 * </p> 3251 * If the URL has the "axs" paramter set to 1 it has already done the 3252 * script injection so we do nothing. If the parameter is set to 0 3253 * the URL opts out accessibility script injection so we fall back to 3254 * the default {@link AccessibilityInjector}. 3255 * </p> 3256 * Note: If the user has not opted-in the accessibility script injection no scripts 3257 * are injected rather the default {@link AccessibilityInjector} implementation 3258 * is used. 3259 * 3260 * @param url The URL loaded by this {@link WebView}. 3261 */ 3262 private void injectAccessibilityForUrl(String url) { 3263 AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(mContext); 3264 3265 if (!accessibilityManager.isEnabled()) { 3266 // it is possible that accessibility was turned off between reloads 3267 ensureAccessibilityScriptInjectorInstance(false); 3268 return; 3269 } 3270 3271 if (!getSettings().getJavaScriptEnabled()) { 3272 // no JS so we fallback to the basic buil-in support 3273 ensureAccessibilityScriptInjectorInstance(true); 3274 return; 3275 } 3276 3277 // check the URL "axs" parameter to choose appropriate action 3278 int axsParameterValue = getAxsUrlParameterValue(url); 3279 if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED) { 3280 boolean onDeviceScriptInjectionEnabled = (Settings.Secure.getInt(mContext 3281 .getContentResolver(), Settings.Secure.ACCESSIBILITY_SCRIPT_INJECTION, 0) == 1); 3282 if (onDeviceScriptInjectionEnabled) { 3283 ensureAccessibilityScriptInjectorInstance(false); 3284 // neither script injected nor script injection opted out => we inject 3285 loadUrl(ACCESSIBILITY_SCRIPT_CHOOSER_JAVASCRIPT); 3286 // TODO: Set this flag after successfull script injection. Maybe upon injection 3287 // the chooser should update the meta tag and we check it to declare success 3288 mAccessibilityScriptInjected = true; 3289 } else { 3290 // injection disabled so we fallback to the basic built-in support 3291 ensureAccessibilityScriptInjectorInstance(true); 3292 } 3293 } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT) { 3294 // injection opted out so we fallback to the basic buil-in support 3295 ensureAccessibilityScriptInjectorInstance(true); 3296 } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED) { 3297 ensureAccessibilityScriptInjectorInstance(false); 3298 // the URL provides accessibility but we still need to add our generic script 3299 loadUrl(ACCESSIBILITY_SCRIPT_CHOOSER_JAVASCRIPT); 3300 } else { 3301 Log.e(LOGTAG, "Unknown URL value for the \"axs\" URL parameter: " + axsParameterValue); 3302 } 3303 } 3304 3305 /** 3306 * Ensures the instance of the {@link AccessibilityInjector} to be present ot not. 3307 * 3308 * @param present True to ensure an insance, false to ensure no instance. 3309 */ 3310 private void ensureAccessibilityScriptInjectorInstance(boolean present) { 3311 if (present && mAccessibilityInjector == null) { 3312 mAccessibilityInjector = new AccessibilityInjector(this); 3313 } else { 3314 mAccessibilityInjector = null; 3315 } 3316 } 3317 3318 /** 3319 * Gets the "axs" URL parameter value. 3320 * 3321 * @param url A url to fetch the paramter from. 3322 * @return The parameter value if such, -1 otherwise. 3323 */ 3324 private int getAxsUrlParameterValue(String url) { 3325 if (mMatchAxsUrlParameterPattern == null) { 3326 mMatchAxsUrlParameterPattern = Pattern.compile(PATTERN_MATCH_AXS_URL_PARAMETER); 3327 } 3328 Matcher matcher = mMatchAxsUrlParameterPattern.matcher(url); 3329 if (matcher.find()) { 3330 String keyValuePair = url.substring(matcher.start(), matcher.end()); 3331 return Integer.parseInt(keyValuePair.split("=")[1]); 3332 } 3333 return -1; 3334 } 3335 3336 /** 3337 * The URL of a page that sent a message to scroll the title bar off screen. 3338 * 3339 * Many mobile sites tell the page to scroll to (0,1) in order to scroll the 3340 * title bar off the screen. Sometimes, the scroll position is set before 3341 * the page finishes loading. Rather than scrolling while the page is still 3342 * loading, keep track of the URL and new scroll position so we can perform 3343 * the scroll once the page finishes loading. 3344 */ 3345 private String mPageThatNeedsToSlideTitleBarOffScreen; 3346 3347 /** 3348 * The destination Y scroll position to be used when the page finishes 3349 * loading. See mPageThatNeedsToSlideTitleBarOffScreen. 3350 */ 3351 private int mYDistanceToSlideTitleOffScreen; 3352 3353 // scale from content to view coordinates, and pin 3354 // return true if pin caused the final x/y different than the request cx/cy, 3355 // and a future scroll may reach the request cx/cy after our size has 3356 // changed 3357 // return false if the view scroll to the exact position as it is requested, 3358 // where negative numbers are taken to mean 0 3359 private boolean setContentScrollTo(int cx, int cy) { 3360 if (mDrawHistory) { 3361 // disallow WebView to change the scroll position as History Picture 3362 // is used in the view system. 3363 // One known case where this is called is that WebCore tries to 3364 // restore the scroll position. As history Picture already uses the 3365 // saved scroll position, it is ok to skip this. 3366 return false; 3367 } 3368 int vx; 3369 int vy; 3370 if ((cx | cy) == 0) { 3371 // If the page is being scrolled to (0,0), do not add in the title 3372 // bar's height, and simply scroll to (0,0). (The only other work 3373 // in contentToView_ is to multiply, so this would not change 0.) 3374 vx = 0; 3375 vy = 0; 3376 } else { 3377 vx = contentToViewX(cx); 3378 vy = contentToViewY(cy); 3379 } 3380// Log.d(LOGTAG, "content scrollTo [" + cx + " " + cy + "] view=[" + 3381// vx + " " + vy + "]"); 3382 // Some mobile sites attempt to scroll the title bar off the page by 3383 // scrolling to (0,1). If we are at the top left corner of the 3384 // page, assume this is an attempt to scroll off the title bar, and 3385 // animate the title bar off screen slowly enough that the user can see 3386 // it. 3387 if (cx == 0 && cy == 1 && mScrollX == 0 && mScrollY == 0 3388 && mTitleBar != null) { 3389 // FIXME: 100 should be defined somewhere as our max progress. 3390 if (getProgress() < 100) { 3391 // Wait to scroll the title bar off screen until the page has 3392 // finished loading. Keep track of the URL and the destination 3393 // Y position 3394 mPageThatNeedsToSlideTitleBarOffScreen = getUrl(); 3395 mYDistanceToSlideTitleOffScreen = vy; 3396 } else { 3397 pinScrollTo(vx, vy, true, SLIDE_TITLE_DURATION); 3398 } 3399 // Since we are animating, we have not yet reached the desired 3400 // scroll position. Do not return true to request another attempt 3401 return false; 3402 } 3403 pinScrollTo(vx, vy, false, 0); 3404 // If the request was to scroll to a negative coordinate, treat it as if 3405 // it was a request to scroll to 0 3406 if ((mScrollX != vx && cx >= 0) || (mScrollY != vy && cy >= 0)) { 3407 return true; 3408 } else { 3409 return false; 3410 } 3411 } 3412 3413 // scale from content to view coordinates, and pin 3414 private void spawnContentScrollTo(int cx, int cy) { 3415 if (mDrawHistory) { 3416 // disallow WebView to change the scroll position as History Picture 3417 // is used in the view system. 3418 return; 3419 } 3420 int vx = contentToViewX(cx); 3421 int vy = contentToViewY(cy); 3422 pinScrollTo(vx, vy, true, 0); 3423 } 3424 3425 /** 3426 * These are from webkit, and are in content coordinate system (unzoomed) 3427 */ 3428 private void contentSizeChanged(boolean updateLayout) { 3429 // suppress 0,0 since we usually see real dimensions soon after 3430 // this avoids drawing the prev content in a funny place. If we find a 3431 // way to consolidate these notifications, this check may become 3432 // obsolete 3433 if ((mContentWidth | mContentHeight) == 0) { 3434 return; 3435 } 3436 3437 if (mHeightCanMeasure) { 3438 if (getMeasuredHeight() != contentToViewDimension(mContentHeight) 3439 || updateLayout) { 3440 requestLayout(); 3441 } 3442 } else if (mWidthCanMeasure) { 3443 if (getMeasuredWidth() != contentToViewDimension(mContentWidth) 3444 || updateLayout) { 3445 requestLayout(); 3446 } 3447 } else { 3448 // If we don't request a layout, try to send our view size to the 3449 // native side to ensure that WebCore has the correct dimensions. 3450 sendViewSizeZoom(false); 3451 } 3452 } 3453 3454 /** 3455 * Set the WebViewClient that will receive various notifications and 3456 * requests. This will replace the current handler. 3457 * @param client An implementation of WebViewClient. 3458 */ 3459 public void setWebViewClient(WebViewClient client) { 3460 mCallbackProxy.setWebViewClient(client); 3461 } 3462 3463 /** 3464 * Gets the WebViewClient 3465 * @return the current WebViewClient instance. 3466 * 3467 *@hide pending API council approval. 3468 */ 3469 public WebViewClient getWebViewClient() { 3470 return mCallbackProxy.getWebViewClient(); 3471 } 3472 3473 /** 3474 * Register the interface to be used when content can not be handled by 3475 * the rendering engine, and should be downloaded instead. This will replace 3476 * the current handler. 3477 * @param listener An implementation of DownloadListener. 3478 */ 3479 public void setDownloadListener(DownloadListener listener) { 3480 mCallbackProxy.setDownloadListener(listener); 3481 } 3482 3483 /** 3484 * Set the chrome handler. This is an implementation of WebChromeClient for 3485 * use in handling JavaScript dialogs, favicons, titles, and the progress. 3486 * This will replace the current handler. 3487 * @param client An implementation of WebChromeClient. 3488 */ 3489 public void setWebChromeClient(WebChromeClient client) { 3490 mCallbackProxy.setWebChromeClient(client); 3491 } 3492 3493 /** 3494 * Gets the chrome handler. 3495 * @return the current WebChromeClient instance. 3496 * 3497 * @hide API council approval. 3498 */ 3499 public WebChromeClient getWebChromeClient() { 3500 return mCallbackProxy.getWebChromeClient(); 3501 } 3502 3503 /** 3504 * Set the back/forward list client. This is an implementation of 3505 * WebBackForwardListClient for handling new items and changes in the 3506 * history index. 3507 * @param client An implementation of WebBackForwardListClient. 3508 * {@hide} 3509 */ 3510 public void setWebBackForwardListClient(WebBackForwardListClient client) { 3511 mCallbackProxy.setWebBackForwardListClient(client); 3512 } 3513 3514 /** 3515 * Gets the WebBackForwardListClient. 3516 * {@hide} 3517 */ 3518 public WebBackForwardListClient getWebBackForwardListClient() { 3519 return mCallbackProxy.getWebBackForwardListClient(); 3520 } 3521 3522 /** 3523 * Set the Picture listener. This is an interface used to receive 3524 * notifications of a new Picture. 3525 * @param listener An implementation of WebView.PictureListener. 3526 */ 3527 public void setPictureListener(PictureListener listener) { 3528 mPictureListener = listener; 3529 } 3530 3531 /** 3532 * {@hide} 3533 */ 3534 /* FIXME: Debug only! Remove for SDK! */ 3535 public void externalRepresentation(Message callback) { 3536 mWebViewCore.sendMessage(EventHub.REQUEST_EXT_REPRESENTATION, callback); 3537 } 3538 3539 /** 3540 * {@hide} 3541 */ 3542 /* FIXME: Debug only! Remove for SDK! */ 3543 public void documentAsText(Message callback) { 3544 mWebViewCore.sendMessage(EventHub.REQUEST_DOC_AS_TEXT, callback); 3545 } 3546 3547 /** 3548 * Use this function to bind an object to JavaScript so that the 3549 * methods can be accessed from JavaScript. 3550 * <p><strong>IMPORTANT:</strong> 3551 * <ul> 3552 * <li> Using addJavascriptInterface() allows JavaScript to control your 3553 * application. This can be a very useful feature or a dangerous security 3554 * issue. When the HTML in the WebView is untrustworthy (for example, part 3555 * or all of the HTML is provided by some person or process), then an 3556 * attacker could inject HTML that will execute your code and possibly any 3557 * code of the attacker's choosing.<br> 3558 * Do not use addJavascriptInterface() unless all of the HTML in this 3559 * WebView was written by you.</li> 3560 * <li> The Java object that is bound runs in another thread and not in 3561 * the thread that it was constructed in.</li> 3562 * </ul></p> 3563 * @param obj The class instance to bind to JavaScript, null instances are 3564 * ignored. 3565 * @param interfaceName The name to used to expose the instance in 3566 * JavaScript. 3567 */ 3568 public void addJavascriptInterface(Object obj, String interfaceName) { 3569 if (obj == null) { 3570 return; 3571 } 3572 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 3573 arg.mObject = obj; 3574 arg.mInterfaceName = interfaceName; 3575 mWebViewCore.sendMessage(EventHub.ADD_JS_INTERFACE, arg); 3576 } 3577 3578 /** 3579 * Removes a previously added JavaScript interface with the given name. 3580 * @param interfaceName The name of the interface to remove. 3581 */ 3582 public void removeJavascriptInterface(String interfaceName) { 3583 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 3584 arg.mInterfaceName = interfaceName; 3585 mWebViewCore.sendMessage(EventHub.REMOVE_JS_INTERFACE, arg); 3586 } 3587 3588 /** 3589 * Return the WebSettings object used to control the settings for this 3590 * WebView. 3591 * @return A WebSettings object that can be used to control this WebView's 3592 * settings. 3593 */ 3594 public WebSettings getSettings() { 3595 return (mWebViewCore != null) ? mWebViewCore.getSettings() : null; 3596 } 3597 3598 /** 3599 * Return the list of currently loaded plugins. 3600 * @return The list of currently loaded plugins. 3601 * 3602 * @deprecated This was used for Gears, which has been deprecated. 3603 */ 3604 @Deprecated 3605 public static synchronized PluginList getPluginList() { 3606 return new PluginList(); 3607 } 3608 3609 /** 3610 * @deprecated This was used for Gears, which has been deprecated. 3611 */ 3612 @Deprecated 3613 public void refreshPlugins(boolean reloadOpenPages) { } 3614 3615 //------------------------------------------------------------------------- 3616 // Override View methods 3617 //------------------------------------------------------------------------- 3618 3619 @Override 3620 protected void finalize() throws Throwable { 3621 try { 3622 destroy(); 3623 } finally { 3624 super.finalize(); 3625 } 3626 } 3627 3628 @Override 3629 protected boolean drawChild(Canvas canvas, View child, long drawingTime) { 3630 if (child == mTitleBar) { 3631 // When drawing the title bar, move it horizontally to always show 3632 // at the top of the WebView. 3633 mTitleBar.offsetLeftAndRight(mScrollX - mTitleBar.getLeft()); 3634 int newTop = Math.min(0, mScrollY); 3635 mTitleBar.setBottom(newTop + getTitleHeight()); 3636 mTitleBar.setTop(newTop); 3637 } 3638 return super.drawChild(canvas, child, drawingTime); 3639 } 3640 3641 private void drawContent(Canvas canvas) { 3642 // Update the buttons in the picture, so when we draw the picture 3643 // to the screen, they are in the correct state. 3644 // Tell the native side if user is a) touching the screen, 3645 // b) pressing the trackball down, or c) pressing the enter key 3646 // If the cursor is on a button, we need to draw it in the pressed 3647 // state. 3648 // If mNativeClass is 0, we should not reach here, so we do not 3649 // need to check it again. 3650 nativeRecordButtons(hasFocus() && hasWindowFocus(), 3651 mTouchMode == TOUCH_SHORTPRESS_START_MODE 3652 || mTrackballDown || mGotCenterDown, false); 3653 drawCoreAndCursorRing(canvas, mBackgroundColor, mDrawCursorRing); 3654 } 3655 3656 /** 3657 * Draw the background when beyond bounds 3658 * @param canvas Canvas to draw into 3659 */ 3660 private void drawOverScrollBackground(Canvas canvas) { 3661 if (mOverScrollBackground == null) { 3662 mOverScrollBackground = new Paint(); 3663 Bitmap bm = BitmapFactory.decodeResource( 3664 mContext.getResources(), 3665 com.android.internal.R.drawable.status_bar_background); 3666 mOverScrollBackground.setShader(new BitmapShader(bm, 3667 Shader.TileMode.REPEAT, Shader.TileMode.REPEAT)); 3668 mOverScrollBorder = new Paint(); 3669 mOverScrollBorder.setStyle(Paint.Style.STROKE); 3670 mOverScrollBorder.setStrokeWidth(0); 3671 mOverScrollBorder.setColor(0xffbbbbbb); 3672 } 3673 3674 int top = 0; 3675 int right = computeRealHorizontalScrollRange(); 3676 int bottom = top + computeRealVerticalScrollRange(); 3677 // first draw the background and anchor to the top of the view 3678 canvas.save(); 3679 canvas.translate(mScrollX, mScrollY); 3680 canvas.clipRect(-mScrollX, top - mScrollY, right - mScrollX, bottom 3681 - mScrollY, Region.Op.DIFFERENCE); 3682 canvas.drawPaint(mOverScrollBackground); 3683 canvas.restore(); 3684 // then draw the border 3685 canvas.drawRect(-1, top - 1, right, bottom, mOverScrollBorder); 3686 // next clip the region for the content 3687 canvas.clipRect(0, top, right, bottom); 3688 } 3689 3690 @Override 3691 protected void onDraw(Canvas canvas) { 3692 // if mNativeClass is 0, the WebView has been destroyed. Do nothing. 3693 if (mNativeClass == 0) { 3694 return; 3695 } 3696 3697 // if both mContentWidth and mContentHeight are 0, it means there is no 3698 // valid Picture passed to WebView yet. This can happen when WebView 3699 // just starts. Draw the background and return. 3700 if ((mContentWidth | mContentHeight) == 0 && mHistoryPicture == null) { 3701 canvas.drawColor(mBackgroundColor); 3702 return; 3703 } 3704 3705 int saveCount = canvas.save(); 3706 if (mInOverScrollMode && !getSettings() 3707 .getUseWebViewBackgroundForOverscrollBackground()) { 3708 drawOverScrollBackground(canvas); 3709 } 3710 if (mTitleBar != null) { 3711 canvas.translate(0, (int) mTitleBar.getHeight()); 3712 } 3713 drawContent(canvas); 3714 canvas.restoreToCount(saveCount); 3715 3716 if (AUTO_REDRAW_HACK && mAutoRedraw) { 3717 invalidate(); 3718 } 3719 if (inEditingMode()) { 3720 mWebTextView.onDrawSubstitute(); 3721 } 3722 mWebViewCore.signalRepaintDone(); 3723 3724 if (mOverScrollGlow != null && mOverScrollGlow.drawEdgeGlows(canvas)) { 3725 invalidate(); 3726 } 3727 3728 // paint the highlight in the end 3729 if (!mTouchHighlightRegion.isEmpty()) { 3730 if (mTouchHightlightPaint == null) { 3731 mTouchHightlightPaint = new Paint(); 3732 mTouchHightlightPaint.setColor(mHightlightColor); 3733 mTouchHightlightPaint.setAntiAlias(true); 3734 mTouchHightlightPaint.setPathEffect(new CornerPathEffect( 3735 TOUCH_HIGHLIGHT_ARC)); 3736 } 3737 canvas.drawPath(mTouchHighlightRegion.getBoundaryPath(), 3738 mTouchHightlightPaint); 3739 } 3740 if (DEBUG_TOUCH_HIGHLIGHT) { 3741 if (getSettings().getNavDump()) { 3742 if ((mTouchHighlightX | mTouchHighlightY) != 0) { 3743 if (mTouchCrossHairColor == null) { 3744 mTouchCrossHairColor = new Paint(); 3745 mTouchCrossHairColor.setColor(Color.RED); 3746 } 3747 canvas.drawLine(mTouchHighlightX - mNavSlop, 3748 mTouchHighlightY - mNavSlop, mTouchHighlightX 3749 + mNavSlop + 1, mTouchHighlightY + mNavSlop 3750 + 1, mTouchCrossHairColor); 3751 canvas.drawLine(mTouchHighlightX + mNavSlop + 1, 3752 mTouchHighlightY - mNavSlop, mTouchHighlightX 3753 - mNavSlop, 3754 mTouchHighlightY + mNavSlop + 1, 3755 mTouchCrossHairColor); 3756 } 3757 } 3758 } 3759 } 3760 3761 private void removeTouchHighlight(boolean removePendingMessage) { 3762 if (removePendingMessage) { 3763 mWebViewCore.removeMessages(EventHub.GET_TOUCH_HIGHLIGHT_RECTS); 3764 } 3765 mWebViewCore.sendMessage(EventHub.REMOVE_TOUCH_HIGHLIGHT_RECTS); 3766 } 3767 3768 @Override 3769 public void setLayoutParams(ViewGroup.LayoutParams params) { 3770 if (params.height == LayoutParams.WRAP_CONTENT) { 3771 mWrapContent = true; 3772 } 3773 super.setLayoutParams(params); 3774 } 3775 3776 @Override 3777 public boolean performLongClick() { 3778 // performLongClick() is the result of a delayed message. If we switch 3779 // to windows overview, the WebView will be temporarily removed from the 3780 // view system. In that case, do nothing. 3781 if (getParent() == null) return false; 3782 3783 // A multi-finger gesture can look like a long press; make sure we don't take 3784 // long press actions if we're scaling. 3785 final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); 3786 if (detector != null && detector.isInProgress()) { 3787 return false; 3788 } 3789 3790 if (mNativeClass != 0 && nativeCursorIsTextInput()) { 3791 // Send the click so that the textfield is in focus 3792 centerKeyPressOnTextField(); 3793 rebuildWebTextView(); 3794 } else { 3795 clearTextEntry(); 3796 } 3797 if (inEditingMode()) { 3798 // Since we just called rebuildWebTextView, the layout is not set 3799 // properly. Update it so it can correctly find the word to select. 3800 mWebTextView.ensureLayout(); 3801 // Provide a touch down event to WebTextView, which will allow it 3802 // to store the location to use in performLongClick. 3803 AbsoluteLayout.LayoutParams params 3804 = (AbsoluteLayout.LayoutParams) mWebTextView.getLayoutParams(); 3805 MotionEvent fake = MotionEvent.obtain(mLastTouchTime, 3806 mLastTouchTime, MotionEvent.ACTION_DOWN, 3807 mLastTouchX - params.x + mScrollX, 3808 mLastTouchY - params.y + mScrollY, 0); 3809 mWebTextView.dispatchTouchEvent(fake); 3810 return mWebTextView.performLongClick(); 3811 } 3812 if (mSelectingText) return false; // long click does nothing on selection 3813 /* if long click brings up a context menu, the super function 3814 * returns true and we're done. Otherwise, nothing happened when 3815 * the user clicked. */ 3816 if (super.performLongClick()) { 3817 return true; 3818 } 3819 /* In the case where the application hasn't already handled the long 3820 * click action, look for a word under the click. If one is found, 3821 * animate the text selection into view. 3822 * FIXME: no animation code yet */ 3823 return selectText(); 3824 } 3825 3826 /** 3827 * Select the word at the last click point. 3828 * 3829 * @hide pending API council approval 3830 */ 3831 public boolean selectText() { 3832 int x = viewToContentX((int) mLastTouchX + mScrollX); 3833 int y = viewToContentY((int) mLastTouchY + mScrollY); 3834 if (!setUpSelect()) { 3835 return false; 3836 } 3837 if (mNativeClass != 0 && nativeWordSelection(x, y)) { 3838 nativeSetExtendSelection(); 3839 mDrawSelectionPointer = false; 3840 mSelectionStarted = true; 3841 mTouchMode = TOUCH_DRAG_MODE; 3842 return true; 3843 } 3844 selectionDone(); 3845 return false; 3846 } 3847 3848 private int mOrientation = Configuration.ORIENTATION_UNDEFINED; 3849 3850 @Override 3851 protected void onConfigurationChanged(Configuration newConfig) { 3852 if (mSelectingText && mOrientation != newConfig.orientation) { 3853 selectionDone(); 3854 } 3855 mOrientation = newConfig.orientation; 3856 } 3857 3858 /** 3859 * Keep track of the Callback so we can end its ActionMode or remove its 3860 * titlebar. 3861 */ 3862 private SelectActionModeCallback mSelectCallback; 3863 3864 // These values are possible options for didUpdateWebTextViewDimensions. 3865 private static final int FULLY_ON_SCREEN = 0; 3866 private static final int INTERSECTS_SCREEN = 1; 3867 private static final int ANYWHERE = 2; 3868 3869 /** 3870 * Check to see if the focused textfield/textarea is still on screen. If it 3871 * is, update the the dimensions and location of WebTextView. Otherwise, 3872 * remove the WebTextView. Should be called when the zoom level changes. 3873 * @param intersection How to determine whether the textfield/textarea is 3874 * still on screen. 3875 * @return boolean True if the textfield/textarea is still on screen and the 3876 * dimensions/location of WebTextView have been updated. 3877 */ 3878 private boolean didUpdateWebTextViewDimensions(int intersection) { 3879 Rect contentBounds = nativeFocusCandidateNodeBounds(); 3880 Rect vBox = contentToViewRect(contentBounds); 3881 Rect visibleRect = new Rect(); 3882 calcOurVisibleRect(visibleRect); 3883 // If the textfield is on screen, place the WebTextView in 3884 // its new place, accounting for our new scroll/zoom values, 3885 // and adjust its textsize. 3886 boolean onScreen; 3887 switch (intersection) { 3888 case FULLY_ON_SCREEN: 3889 onScreen = visibleRect.contains(vBox); 3890 break; 3891 case INTERSECTS_SCREEN: 3892 onScreen = Rect.intersects(visibleRect, vBox); 3893 break; 3894 case ANYWHERE: 3895 onScreen = true; 3896 break; 3897 default: 3898 throw new AssertionError( 3899 "invalid parameter passed to didUpdateWebTextViewDimensions"); 3900 } 3901 if (onScreen) { 3902 mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), 3903 vBox.height()); 3904 mWebTextView.updateTextSize(); 3905 updateWebTextViewPadding(); 3906 return true; 3907 } else { 3908 // The textfield is now off screen. The user probably 3909 // was not zooming to see the textfield better. Remove 3910 // the WebTextView. If the user types a key, and the 3911 // textfield is still in focus, we will reconstruct 3912 // the WebTextView and scroll it back on screen. 3913 mWebTextView.remove(); 3914 return false; 3915 } 3916 } 3917 3918 void setBaseLayer(int layer, Rect invalRect) { 3919 if (mNativeClass == 0) 3920 return; 3921 if (invalRect == null) { 3922 Rect rect = new Rect(0, 0, mContentWidth, mContentHeight); 3923 nativeSetBaseLayer(layer, rect); 3924 } else { 3925 nativeSetBaseLayer(layer, invalRect); 3926 } 3927 } 3928 3929 private void onZoomAnimationStart() { 3930 // If it is in password mode, turn it off so it does not draw misplaced. 3931 if (inEditingMode() && nativeFocusCandidateIsPassword()) { 3932 mWebTextView.setInPassword(false); 3933 } 3934 } 3935 3936 private void onZoomAnimationEnd() { 3937 // adjust the edit text view if needed 3938 if (inEditingMode() && didUpdateWebTextViewDimensions(FULLY_ON_SCREEN) 3939 && nativeFocusCandidateIsPassword()) { 3940 // If it is a password field, start drawing the WebTextView once 3941 // again. 3942 mWebTextView.setInPassword(true); 3943 } 3944 } 3945 3946 void onFixedLengthZoomAnimationStart() { 3947 WebViewCore.pauseUpdatePicture(getWebViewCore()); 3948 onZoomAnimationStart(); 3949 } 3950 3951 void onFixedLengthZoomAnimationEnd() { 3952 if (!mSelectingText) { 3953 WebViewCore.resumeUpdatePicture(mWebViewCore); 3954 } 3955 onZoomAnimationEnd(); 3956 } 3957 3958 private static final int ZOOM_BITS = Paint.FILTER_BITMAP_FLAG | 3959 Paint.DITHER_FLAG | 3960 Paint.SUBPIXEL_TEXT_FLAG; 3961 private static final int SCROLL_BITS = Paint.FILTER_BITMAP_FLAG | 3962 Paint.DITHER_FLAG; 3963 3964 private final DrawFilter mZoomFilter = 3965 new PaintFlagsDrawFilter(ZOOM_BITS, Paint.LINEAR_TEXT_FLAG); 3966 // If we need to trade better quality for speed, set mScrollFilter to null 3967 private final DrawFilter mScrollFilter = 3968 new PaintFlagsDrawFilter(SCROLL_BITS, 0); 3969 3970 private void drawCoreAndCursorRing(Canvas canvas, int color, 3971 boolean drawCursorRing) { 3972 if (mDrawHistory) { 3973 canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); 3974 canvas.drawPicture(mHistoryPicture); 3975 return; 3976 } 3977 if (mNativeClass == 0) return; 3978 3979 boolean animateZoom = mZoomManager.isFixedLengthAnimationInProgress(); 3980 boolean animateScroll = ((!mScroller.isFinished() 3981 || mVelocityTracker != null) 3982 && (mTouchMode != TOUCH_DRAG_MODE || 3983 mHeldMotionless != MOTIONLESS_TRUE)) 3984 || mDeferTouchMode == TOUCH_DRAG_MODE; 3985 if (mTouchMode == TOUCH_DRAG_MODE) { 3986 if (mHeldMotionless == MOTIONLESS_PENDING) { 3987 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 3988 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 3989 mHeldMotionless = MOTIONLESS_FALSE; 3990 } 3991 if (mHeldMotionless == MOTIONLESS_FALSE) { 3992 mPrivateHandler.sendMessageDelayed(mPrivateHandler 3993 .obtainMessage(DRAG_HELD_MOTIONLESS), MOTIONLESS_TIME); 3994 mHeldMotionless = MOTIONLESS_PENDING; 3995 } 3996 } 3997 if (animateZoom) { 3998 mZoomManager.animateZoom(canvas); 3999 } else { 4000 canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); 4001 } 4002 4003 boolean UIAnimationsRunning = false; 4004 // Currently for each draw we compute the animation values; 4005 // We may in the future decide to do that independently. 4006 if (mNativeClass != 0 && nativeEvaluateLayersAnimations()) { 4007 UIAnimationsRunning = true; 4008 // If we have unfinished (or unstarted) animations, 4009 // we ask for a repaint. 4010 invalidate(); 4011 } 4012 4013 // decide which adornments to draw 4014 int extras = DRAW_EXTRAS_NONE; 4015 if (mFindIsUp) { 4016 extras = DRAW_EXTRAS_FIND; 4017 } else if (mSelectingText) { 4018 extras = DRAW_EXTRAS_SELECTION; 4019 nativeSetSelectionPointer(mDrawSelectionPointer, 4020 mZoomManager.getInvScale(), 4021 mSelectX, mSelectY - getTitleHeight()); 4022 } else if (drawCursorRing) { 4023 extras = DRAW_EXTRAS_CURSOR_RING; 4024 } 4025 if (DebugFlags.WEB_VIEW) { 4026 Log.v(LOGTAG, "mFindIsUp=" + mFindIsUp 4027 + " mSelectingText=" + mSelectingText 4028 + " nativePageShouldHandleShiftAndArrows()=" 4029 + nativePageShouldHandleShiftAndArrows() 4030 + " animateZoom=" + animateZoom 4031 + " extras=" + extras); 4032 } 4033 4034 if (canvas.isHardwareAccelerated()) { 4035 try { 4036 if (canvas.acquireContext()) { 4037 Rect rect = new Rect(mGLRectViewport.left, 4038 mGLRectViewport.top, 4039 mGLRectViewport.right, 4040 mGLRectViewport.bottom 4041 - getVisibleTitleHeight()); 4042 if (nativeDrawGL(rect, getScale(), extras)) { 4043 invalidate(); 4044 } 4045 } 4046 } finally { 4047 canvas.releaseContext(); 4048 } 4049 } else { 4050 DrawFilter df = null; 4051 if (mZoomManager.isZoomAnimating() || UIAnimationsRunning) { 4052 df = mZoomFilter; 4053 } else if (animateScroll) { 4054 df = mScrollFilter; 4055 } 4056 canvas.setDrawFilter(df); 4057 int content = nativeDraw(canvas, color, extras, true); 4058 canvas.setDrawFilter(null); 4059 if (content != 0) { 4060 mWebViewCore.sendMessage(EventHub.SPLIT_PICTURE_SET, content, 0); 4061 } 4062 } 4063 4064 if (extras == DRAW_EXTRAS_CURSOR_RING) { 4065 if (mTouchMode == TOUCH_SHORTPRESS_START_MODE) { 4066 mTouchMode = TOUCH_SHORTPRESS_MODE; 4067 } 4068 } 4069 if (mFocusSizeChanged) { 4070 mFocusSizeChanged = false; 4071 // If we are zooming, this will get handled above, when the zoom 4072 // finishes. We also do not need to do this unless the WebTextView 4073 // is showing. 4074 if (!animateZoom && inEditingMode()) { 4075 didUpdateWebTextViewDimensions(ANYWHERE); 4076 } 4077 } 4078 } 4079 4080 // draw history 4081 private boolean mDrawHistory = false; 4082 private Picture mHistoryPicture = null; 4083 private int mHistoryWidth = 0; 4084 private int mHistoryHeight = 0; 4085 4086 // Only check the flag, can be called from WebCore thread 4087 boolean drawHistory() { 4088 return mDrawHistory; 4089 } 4090 4091 int getHistoryPictureWidth() { 4092 return (mHistoryPicture != null) ? mHistoryPicture.getWidth() : 0; 4093 } 4094 4095 // Should only be called in UI thread 4096 void switchOutDrawHistory() { 4097 if (null == mWebViewCore) return; // CallbackProxy may trigger this 4098 if (mDrawHistory && (getProgress() == 100 || nativeHasContent())) { 4099 mDrawHistory = false; 4100 mHistoryPicture = null; 4101 invalidate(); 4102 int oldScrollX = mScrollX; 4103 int oldScrollY = mScrollY; 4104 mScrollX = pinLocX(mScrollX); 4105 mScrollY = pinLocY(mScrollY); 4106 if (oldScrollX != mScrollX || oldScrollY != mScrollY) { 4107 mUserScroll = false; 4108 mWebViewCore.sendMessage(EventHub.SYNC_SCROLL, oldScrollX, 4109 oldScrollY); 4110 onScrollChanged(mScrollX, mScrollY, oldScrollX, oldScrollY); 4111 } else { 4112 sendOurVisibleRect(); 4113 } 4114 } 4115 } 4116 4117 WebViewCore.CursorData cursorData() { 4118 WebViewCore.CursorData result = new WebViewCore.CursorData(); 4119 result.mMoveGeneration = nativeMoveGeneration(); 4120 result.mFrame = nativeCursorFramePointer(); 4121 Point position = nativeCursorPosition(); 4122 result.mX = position.x; 4123 result.mY = position.y; 4124 return result; 4125 } 4126 4127 /** 4128 * Delete text from start to end in the focused textfield. If there is no 4129 * focus, or if start == end, silently fail. If start and end are out of 4130 * order, swap them. 4131 * @param start Beginning of selection to delete. 4132 * @param end End of selection to delete. 4133 */ 4134 /* package */ void deleteSelection(int start, int end) { 4135 mTextGeneration++; 4136 WebViewCore.TextSelectionData data 4137 = new WebViewCore.TextSelectionData(start, end); 4138 mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, mTextGeneration, 0, 4139 data); 4140 } 4141 4142 /** 4143 * Set the selection to (start, end) in the focused textfield. If start and 4144 * end are out of order, swap them. 4145 * @param start Beginning of selection. 4146 * @param end End of selection. 4147 */ 4148 /* package */ void setSelection(int start, int end) { 4149 if (mWebViewCore != null) { 4150 mWebViewCore.sendMessage(EventHub.SET_SELECTION, start, end); 4151 } 4152 } 4153 4154 @Override 4155 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4156 InputConnection connection = super.onCreateInputConnection(outAttrs); 4157 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_FULLSCREEN; 4158 return connection; 4159 } 4160 4161 /** 4162 * Called in response to a message from webkit telling us that the soft 4163 * keyboard should be launched. 4164 */ 4165 private void displaySoftKeyboard(boolean isTextView) { 4166 InputMethodManager imm = (InputMethodManager) 4167 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 4168 4169 // bring it back to the default level scale so that user can enter text 4170 boolean zoom = mZoomManager.getScale() < mZoomManager.getDefaultScale(); 4171 if (zoom) { 4172 mZoomManager.setZoomCenter(mLastTouchX, mLastTouchY); 4173 mZoomManager.setZoomScale(mZoomManager.getDefaultScale(), false); 4174 } 4175 if (isTextView) { 4176 rebuildWebTextView(); 4177 if (inEditingMode()) { 4178 imm.showSoftInput(mWebTextView, 0); 4179 if (zoom) { 4180 didUpdateWebTextViewDimensions(INTERSECTS_SCREEN); 4181 } 4182 return; 4183 } 4184 } 4185 // Used by plugins and contentEditable. 4186 // Also used if the navigation cache is out of date, and 4187 // does not recognize that a textfield is in focus. In that 4188 // case, use WebView as the targeted view. 4189 // see http://b/issue?id=2457459 4190 imm.showSoftInput(this, 0); 4191 } 4192 4193 // Called by WebKit to instruct the UI to hide the keyboard 4194 private void hideSoftKeyboard() { 4195 InputMethodManager imm = InputMethodManager.peekInstance(); 4196 if (imm != null && (imm.isActive(this) 4197 || (inEditingMode() && imm.isActive(mWebTextView)))) { 4198 imm.hideSoftInputFromWindow(this.getWindowToken(), 0); 4199 } 4200 } 4201 4202 /* 4203 * This method checks the current focus and cursor and potentially rebuilds 4204 * mWebTextView to have the appropriate properties, such as password, 4205 * multiline, and what text it contains. It also removes it if necessary. 4206 */ 4207 /* package */ void rebuildWebTextView() { 4208 // If the WebView does not have focus, do nothing until it gains focus. 4209 if (!hasFocus() && (null == mWebTextView || !mWebTextView.hasFocus())) { 4210 return; 4211 } 4212 boolean alreadyThere = inEditingMode(); 4213 // inEditingMode can only return true if mWebTextView is non-null, 4214 // so we can safely call remove() if (alreadyThere) 4215 if (0 == mNativeClass || !nativeFocusCandidateIsTextInput()) { 4216 if (alreadyThere) { 4217 mWebTextView.remove(); 4218 } 4219 return; 4220 } 4221 // At this point, we know we have found an input field, so go ahead 4222 // and create the WebTextView if necessary. 4223 if (mWebTextView == null) { 4224 mWebTextView = new WebTextView(mContext, WebView.this, mAutoFillData.getQueryId()); 4225 // Initialize our generation number. 4226 mTextGeneration = 0; 4227 } 4228 mWebTextView.updateTextSize(); 4229 Rect visibleRect = new Rect(); 4230 calcOurContentVisibleRect(visibleRect); 4231 // Note that sendOurVisibleRect calls viewToContent, so the coordinates 4232 // should be in content coordinates. 4233 Rect bounds = nativeFocusCandidateNodeBounds(); 4234 Rect vBox = contentToViewRect(bounds); 4235 mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), vBox.height()); 4236 if (!Rect.intersects(bounds, visibleRect)) { 4237 mWebTextView.bringIntoView(); 4238 } 4239 String text = nativeFocusCandidateText(); 4240 int nodePointer = nativeFocusCandidatePointer(); 4241 if (alreadyThere && mWebTextView.isSameTextField(nodePointer)) { 4242 // It is possible that we have the same textfield, but it has moved, 4243 // i.e. In the case of opening/closing the screen. 4244 // In that case, we need to set the dimensions, but not the other 4245 // aspects. 4246 // If the text has been changed by webkit, update it. However, if 4247 // there has been more UI text input, ignore it. We will receive 4248 // another update when that text is recognized. 4249 if (text != null && !text.equals(mWebTextView.getText().toString()) 4250 && nativeTextGeneration() == mTextGeneration) { 4251 mWebTextView.setTextAndKeepSelection(text); 4252 } 4253 } else { 4254 mWebTextView.setGravity(nativeFocusCandidateIsRtlText() ? 4255 Gravity.RIGHT : Gravity.NO_GRAVITY); 4256 // This needs to be called before setType, which may call 4257 // requestFormData, and it needs to have the correct nodePointer. 4258 mWebTextView.setNodePointer(nodePointer); 4259 mWebTextView.setType(nativeFocusCandidateType()); 4260 updateWebTextViewPadding(); 4261 if (null == text) { 4262 if (DebugFlags.WEB_VIEW) { 4263 Log.v(LOGTAG, "rebuildWebTextView null == text"); 4264 } 4265 text = ""; 4266 } 4267 mWebTextView.setTextAndKeepSelection(text); 4268 InputMethodManager imm = InputMethodManager.peekInstance(); 4269 if (imm != null && imm.isActive(mWebTextView)) { 4270 imm.restartInput(mWebTextView); 4271 } 4272 } 4273 if (isFocused()) { 4274 mWebTextView.requestFocus(); 4275 } 4276 } 4277 4278 /** 4279 * Update the padding of mWebTextView based on the native textfield/textarea 4280 */ 4281 void updateWebTextViewPadding() { 4282 Rect paddingRect = nativeFocusCandidatePaddingRect(); 4283 if (paddingRect != null) { 4284 // Use contentToViewDimension since these are the dimensions of 4285 // the padding. 4286 mWebTextView.setPadding( 4287 contentToViewDimension(paddingRect.left), 4288 contentToViewDimension(paddingRect.top), 4289 contentToViewDimension(paddingRect.right), 4290 contentToViewDimension(paddingRect.bottom)); 4291 } 4292 } 4293 4294 /** 4295 * Tell webkit to put the cursor on screen. 4296 */ 4297 /* package */ void revealSelection() { 4298 if (mWebViewCore != null) { 4299 mWebViewCore.sendMessage(EventHub.REVEAL_SELECTION); 4300 } 4301 } 4302 4303 /** 4304 * Called by WebTextView to find saved form data associated with the 4305 * textfield 4306 * @param name Name of the textfield. 4307 * @param nodePointer Pointer to the node of the textfield, so it can be 4308 * compared to the currently focused textfield when the data is 4309 * retrieved. 4310 * @param autoFillable true if WebKit has determined this field is part of 4311 * a form that can be auto filled. 4312 */ 4313 /* package */ void requestFormData(String name, int nodePointer, boolean autoFillable) { 4314 if (mWebViewCore.getSettings().getSaveFormData()) { 4315 Message update = mPrivateHandler.obtainMessage(REQUEST_FORM_DATA); 4316 update.arg1 = nodePointer; 4317 RequestFormData updater = new RequestFormData(name, getUrl(), 4318 update, autoFillable); 4319 Thread t = new Thread(updater); 4320 t.start(); 4321 } 4322 } 4323 4324 /** 4325 * Pass a message to find out the <label> associated with the <input> 4326 * identified by nodePointer 4327 * @param framePointer Pointer to the frame containing the <input> node 4328 * @param nodePointer Pointer to the node for which a <label> is desired. 4329 */ 4330 /* package */ void requestLabel(int framePointer, int nodePointer) { 4331 mWebViewCore.sendMessage(EventHub.REQUEST_LABEL, framePointer, 4332 nodePointer); 4333 } 4334 4335 /* 4336 * This class requests an Adapter for the WebTextView which shows past 4337 * entries stored in the database. It is a Runnable so that it can be done 4338 * in its own thread, without slowing down the UI. 4339 */ 4340 private class RequestFormData implements Runnable { 4341 private String mName; 4342 private String mUrl; 4343 private Message mUpdateMessage; 4344 private boolean mAutoFillable; 4345 4346 public RequestFormData(String name, String url, Message msg, boolean autoFillable) { 4347 mName = name; 4348 mUrl = url; 4349 mUpdateMessage = msg; 4350 mAutoFillable = autoFillable; 4351 } 4352 4353 public void run() { 4354 ArrayList<String> pastEntries = new ArrayList(); 4355 4356 if (mAutoFillable) { 4357 // Note that code inside the adapter click handler in WebTextView depends 4358 // on the AutoFill item being at the top of the drop down list. If you change 4359 // the order, make sure to do it there too! 4360 WebSettings settings = getSettings(); 4361 if (settings != null && settings.getAutoFillProfile() != null) { 4362 pastEntries.add(getResources().getText( 4363 com.android.internal.R.string.autofill_this_form).toString() + 4364 " " + 4365 mAutoFillData.getPreviewString()); 4366 mWebTextView.setAutoFillProfileIsSet(true); 4367 } else { 4368 // There is no autofill profile set up yet, so add an option that 4369 // will invite the user to set their profile up. 4370 pastEntries.add(getResources().getText( 4371 com.android.internal.R.string.setup_autofill).toString()); 4372 mWebTextView.setAutoFillProfileIsSet(false); 4373 } 4374 } 4375 4376 pastEntries.addAll(mDatabase.getFormData(mUrl, mName)); 4377 4378 if (pastEntries.size() > 0) { 4379 AutoCompleteAdapter adapter = new 4380 AutoCompleteAdapter(mContext, pastEntries); 4381 mUpdateMessage.obj = adapter; 4382 mUpdateMessage.sendToTarget(); 4383 } 4384 } 4385 } 4386 4387 /** 4388 * Dump the display tree to "/sdcard/displayTree.txt" 4389 * 4390 * @hide debug only 4391 */ 4392 public void dumpDisplayTree() { 4393 nativeDumpDisplayTree(getUrl()); 4394 } 4395 4396 /** 4397 * Dump the dom tree to adb shell if "toFile" is False, otherwise dump it to 4398 * "/sdcard/domTree.txt" 4399 * 4400 * @hide debug only 4401 */ 4402 public void dumpDomTree(boolean toFile) { 4403 mWebViewCore.sendMessage(EventHub.DUMP_DOMTREE, toFile ? 1 : 0, 0); 4404 } 4405 4406 /** 4407 * Dump the render tree to adb shell if "toFile" is False, otherwise dump it 4408 * to "/sdcard/renderTree.txt" 4409 * 4410 * @hide debug only 4411 */ 4412 public void dumpRenderTree(boolean toFile) { 4413 mWebViewCore.sendMessage(EventHub.DUMP_RENDERTREE, toFile ? 1 : 0, 0); 4414 } 4415 4416 /** 4417 * Called by DRT on UI thread, need to proxy to WebCore thread. 4418 * 4419 * @hide debug only 4420 */ 4421 public void useMockDeviceOrientation() { 4422 mWebViewCore.sendMessage(EventHub.USE_MOCK_DEVICE_ORIENTATION); 4423 } 4424 4425 /** 4426 * Called by DRT on WebCore thread. 4427 * 4428 * @hide debug only 4429 */ 4430 public void setMockDeviceOrientation(boolean canProvideAlpha, double alpha, 4431 boolean canProvideBeta, double beta, boolean canProvideGamma, double gamma) { 4432 mWebViewCore.setMockDeviceOrientation(canProvideAlpha, alpha, canProvideBeta, beta, 4433 canProvideGamma, gamma); 4434 } 4435 4436 /** 4437 * Dump the V8 counters to standard output. 4438 * Note that you need a build with V8 and WEBCORE_INSTRUMENTATION set to 4439 * true. Otherwise, this will do nothing. 4440 * 4441 * @hide debug only 4442 */ 4443 public void dumpV8Counters() { 4444 mWebViewCore.sendMessage(EventHub.DUMP_V8COUNTERS); 4445 } 4446 4447 // This is used to determine long press with the center key. Does not 4448 // affect long press with the trackball/touch. 4449 private boolean mGotCenterDown = false; 4450 4451 @Override 4452 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4453 // send complex characters to webkit for use by JS and plugins 4454 if (keyCode == KeyEvent.KEYCODE_UNKNOWN && event.getCharacters() != null) { 4455 // pass the key to DOM 4456 mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); 4457 mWebViewCore.sendMessage(EventHub.KEY_UP, event); 4458 // return true as DOM handles the key 4459 return true; 4460 } 4461 return false; 4462 } 4463 4464 @Override 4465 public boolean onKeyDown(int keyCode, KeyEvent event) { 4466 if (DebugFlags.WEB_VIEW) { 4467 Log.v(LOGTAG, "keyDown at " + System.currentTimeMillis() 4468 + ", " + event + ", unicode=" + event.getUnicodeChar()); 4469 } 4470 4471 if (mNativeClass == 0) { 4472 return false; 4473 } 4474 4475 // do this hack up front, so it always works, regardless of touch-mode 4476 if (AUTO_REDRAW_HACK && (keyCode == KeyEvent.KEYCODE_CALL)) { 4477 mAutoRedraw = !mAutoRedraw; 4478 if (mAutoRedraw) { 4479 invalidate(); 4480 } 4481 return true; 4482 } 4483 4484 // Bubble up the key event if 4485 // 1. it is a system key; or 4486 // 2. the host application wants to handle it; 4487 // 3. the accessibility injector is present and wants to handle it; 4488 if (event.isSystem() 4489 || mCallbackProxy.uiOverrideKeyEvent(event) 4490 || (mAccessibilityInjector != null && mAccessibilityInjector.onKeyEvent(event))) { 4491 return false; 4492 } 4493 4494 if (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT 4495 || keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT) { 4496 if (!pageShouldHandleShiftAndArrows() && !nativeCursorWantsKeyEvents() 4497 && !mSelectingText) { 4498 setUpSelect(); 4499 } 4500 } 4501 4502 if (keyCode == KeyEvent.KEYCODE_PAGE_UP) { 4503 pageUp(false); 4504 return true; 4505 } 4506 4507 if (keyCode == KeyEvent.KEYCODE_PAGE_DOWN) { 4508 pageDown(false); 4509 return true; 4510 } 4511 4512 if (keyCode >= KeyEvent.KEYCODE_DPAD_UP 4513 && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { 4514 switchOutDrawHistory(); 4515 if (pageShouldHandleShiftAndArrows()) { 4516 letPageHandleNavKey(keyCode, event.getEventTime(), true, event.getMetaState()); 4517 return true; 4518 } 4519 if (mSelectingText) { 4520 int xRate = keyCode == KeyEvent.KEYCODE_DPAD_LEFT 4521 ? -1 : keyCode == KeyEvent.KEYCODE_DPAD_RIGHT ? 1 : 0; 4522 int yRate = keyCode == KeyEvent.KEYCODE_DPAD_UP ? 4523 -1 : keyCode == KeyEvent.KEYCODE_DPAD_DOWN ? 1 : 0; 4524 int multiplier = event.getRepeatCount() + 1; 4525 moveSelection(xRate * multiplier, yRate * multiplier); 4526 return true; 4527 } 4528 if (navHandledKey(keyCode, 1, false, event.getEventTime())) { 4529 playSoundEffect(keyCodeToSoundsEffect(keyCode)); 4530 return true; 4531 } 4532 // Bubble up the key event as WebView doesn't handle it 4533 return false; 4534 } 4535 4536 if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { 4537 switchOutDrawHistory(); 4538 if (event.getRepeatCount() == 0) { 4539 if (mSelectingText) { 4540 return true; // discard press if copy in progress 4541 } 4542 mGotCenterDown = true; 4543 mPrivateHandler.sendMessageDelayed(mPrivateHandler 4544 .obtainMessage(LONG_PRESS_CENTER), LONG_PRESS_TIMEOUT); 4545 // Already checked mNativeClass, so we do not need to check it 4546 // again. 4547 nativeRecordButtons(hasFocus() && hasWindowFocus(), true, true); 4548 return true; 4549 } 4550 // Bubble up the key event as WebView doesn't handle it 4551 return false; 4552 } 4553 4554 if (keyCode != KeyEvent.KEYCODE_SHIFT_LEFT 4555 && keyCode != KeyEvent.KEYCODE_SHIFT_RIGHT) { 4556 // turn off copy select if a shift-key combo is pressed 4557 selectionDone(); 4558 } 4559 4560 if (getSettings().getNavDump()) { 4561 switch (keyCode) { 4562 case KeyEvent.KEYCODE_4: 4563 dumpDisplayTree(); 4564 break; 4565 case KeyEvent.KEYCODE_5: 4566 case KeyEvent.KEYCODE_6: 4567 dumpDomTree(keyCode == KeyEvent.KEYCODE_5); 4568 break; 4569 case KeyEvent.KEYCODE_7: 4570 case KeyEvent.KEYCODE_8: 4571 dumpRenderTree(keyCode == KeyEvent.KEYCODE_7); 4572 break; 4573 case KeyEvent.KEYCODE_9: 4574 nativeInstrumentReport(); 4575 return true; 4576 } 4577 } 4578 4579 if (nativeCursorIsTextInput()) { 4580 // This message will put the node in focus, for the DOM's notion 4581 // of focus, and make the focuscontroller active 4582 mWebViewCore.sendMessage(EventHub.CLICK, nativeCursorFramePointer(), 4583 nativeCursorNodePointer()); 4584 // This will bring up the WebTextView and put it in focus, for 4585 // our view system's notion of focus 4586 rebuildWebTextView(); 4587 // Now we need to pass the event to it 4588 if (inEditingMode()) { 4589 mWebTextView.setDefaultSelection(); 4590 return mWebTextView.dispatchKeyEvent(event); 4591 } 4592 } else if (nativeHasFocusNode()) { 4593 // In this case, the cursor is not on a text input, but the focus 4594 // might be. Check it, and if so, hand over to the WebTextView. 4595 rebuildWebTextView(); 4596 if (inEditingMode()) { 4597 mWebTextView.setDefaultSelection(); 4598 return mWebTextView.dispatchKeyEvent(event); 4599 } 4600 } 4601 4602 // TODO: should we pass all the keys to DOM or check the meta tag 4603 if (nativeCursorWantsKeyEvents() || true) { 4604 // pass the key to DOM 4605 mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); 4606 // return true as DOM handles the key 4607 return true; 4608 } 4609 4610 // Bubble up the key event as WebView doesn't handle it 4611 return false; 4612 } 4613 4614 @Override 4615 public boolean onKeyUp(int keyCode, KeyEvent event) { 4616 if (DebugFlags.WEB_VIEW) { 4617 Log.v(LOGTAG, "keyUp at " + System.currentTimeMillis() 4618 + ", " + event + ", unicode=" + event.getUnicodeChar()); 4619 } 4620 4621 if (mNativeClass == 0) { 4622 return false; 4623 } 4624 4625 // special CALL handling when cursor node's href is "tel:XXX" 4626 if (keyCode == KeyEvent.KEYCODE_CALL && nativeHasCursorNode()) { 4627 String text = nativeCursorText(); 4628 if (!nativeCursorIsTextInput() && text != null 4629 && text.startsWith(SCHEME_TEL)) { 4630 Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse(text)); 4631 getContext().startActivity(intent); 4632 return true; 4633 } 4634 } 4635 4636 // Bubble up the key event if 4637 // 1. it is a system key; or 4638 // 2. the host application wants to handle it; 4639 // 3. the accessibility injector is present and wants to handle it; 4640 if (event.isSystem() 4641 || mCallbackProxy.uiOverrideKeyEvent(event) 4642 || (mAccessibilityInjector != null && mAccessibilityInjector.onKeyEvent(event))) { 4643 return false; 4644 } 4645 4646 if (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT 4647 || keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT) { 4648 if (!pageShouldHandleShiftAndArrows() && copySelection()) { 4649 selectionDone(); 4650 return true; 4651 } 4652 } 4653 4654 if (keyCode >= KeyEvent.KEYCODE_DPAD_UP 4655 && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { 4656 if (pageShouldHandleShiftAndArrows()) { 4657 letPageHandleNavKey(keyCode, event.getEventTime(), false, event.getMetaState()); 4658 return true; 4659 } 4660 // always handle the navigation keys in the UI thread 4661 // Bubble up the key event as WebView doesn't handle it 4662 return false; 4663 } 4664 4665 if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { 4666 // remove the long press message first 4667 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 4668 mGotCenterDown = false; 4669 4670 if (mSelectingText) { 4671 if (mExtendSelection) { 4672 copySelection(); 4673 selectionDone(); 4674 } else { 4675 mExtendSelection = true; 4676 nativeSetExtendSelection(); 4677 invalidate(); // draw the i-beam instead of the arrow 4678 } 4679 return true; // discard press if copy in progress 4680 } 4681 4682 // perform the single click 4683 Rect visibleRect = sendOurVisibleRect(); 4684 // Note that sendOurVisibleRect calls viewToContent, so the 4685 // coordinates should be in content coordinates. 4686 if (!nativeCursorIntersects(visibleRect)) { 4687 return false; 4688 } 4689 WebViewCore.CursorData data = cursorData(); 4690 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, data); 4691 playSoundEffect(SoundEffectConstants.CLICK); 4692 if (nativeCursorIsTextInput()) { 4693 rebuildWebTextView(); 4694 centerKeyPressOnTextField(); 4695 if (inEditingMode()) { 4696 mWebTextView.setDefaultSelection(); 4697 } 4698 return true; 4699 } 4700 clearTextEntry(); 4701 nativeShowCursorTimed(); 4702 if (!mCallbackProxy.uiOverrideUrlLoading(nativeCursorText())) { 4703 mWebViewCore.sendMessage(EventHub.CLICK, data.mFrame, 4704 nativeCursorNodePointer()); 4705 } 4706 return true; 4707 } 4708 4709 // TODO: should we pass all the keys to DOM or check the meta tag 4710 if (nativeCursorWantsKeyEvents() || true) { 4711 // pass the key to DOM 4712 mWebViewCore.sendMessage(EventHub.KEY_UP, event); 4713 // return true as DOM handles the key 4714 return true; 4715 } 4716 4717 // Bubble up the key event as WebView doesn't handle it 4718 return false; 4719 } 4720 4721 /* 4722 * Enter selecting text mode. Returns true if the WebView is now in 4723 * selecting text mode (including if it was already in that mode, and this 4724 * method did nothing). 4725 */ 4726 private boolean setUpSelect() { 4727 if (0 == mNativeClass) return false; // client isn't initialized 4728 if (inFullScreenMode()) return false; 4729 if (mSelectingText) return true; 4730 mExtendSelection = false; 4731 mSelectingText = mDrawSelectionPointer = true; 4732 // don't let the picture change during text selection 4733 WebViewCore.pauseUpdatePicture(mWebViewCore); 4734 nativeResetSelection(); 4735 if (nativeHasCursorNode()) { 4736 Rect rect = nativeCursorNodeBounds(); 4737 mSelectX = contentToViewX(rect.left); 4738 mSelectY = contentToViewY(rect.top); 4739 } else if (mLastTouchY > getVisibleTitleHeight()) { 4740 mSelectX = mScrollX + (int) mLastTouchX; 4741 mSelectY = mScrollY + (int) mLastTouchY; 4742 } else { 4743 mSelectX = mScrollX + getViewWidth() / 2; 4744 mSelectY = mScrollY + getViewHeightWithTitle() / 2; 4745 } 4746 nativeHideCursor(); 4747 mSelectCallback = new SelectActionModeCallback(); 4748 mSelectCallback.setWebView(this); 4749 if (startActionMode(mSelectCallback) == null) { 4750 // There is no ActionMode, so do not allow the user to modify a 4751 // selection. 4752 selectionDone(); 4753 return false; 4754 } 4755 return true; 4756 } 4757 4758 /** 4759 * Use this method to put the WebView into text selection mode. 4760 * Do not rely on this functionality; it will be deprecated in the future. 4761 */ 4762 public void emulateShiftHeld() { 4763 setUpSelect(); 4764 } 4765 4766 /** 4767 * Select all of the text in this WebView. 4768 */ 4769 void selectAll() { 4770 if (0 == mNativeClass) return; // client isn't initialized 4771 if (inFullScreenMode()) return; 4772 if (!mSelectingText && !setUpSelect()) { 4773 return; 4774 } 4775 nativeSelectAll(); 4776 mDrawSelectionPointer = false; 4777 mExtendSelection = true; 4778 invalidate(); 4779 } 4780 4781 /** 4782 * Called when the selection has been removed. 4783 */ 4784 void selectionDone() { 4785 if (mSelectingText) { 4786 mSelectingText = false; 4787 // finish is idempotent, so this is fine even if selectionDone was 4788 // called by mSelectCallback.onDestroyActionMode 4789 mSelectCallback.finish(); 4790 mSelectCallback = null; 4791 WebViewCore.resumePriority(); 4792 WebViewCore.resumeUpdatePicture(mWebViewCore); 4793 invalidate(); // redraw without selection 4794 mAutoScrollX = 0; 4795 mAutoScrollY = 0; 4796 mSentAutoScrollMessage = false; 4797 } 4798 } 4799 4800 /** 4801 * Copy the selection to the clipboard 4802 */ 4803 boolean copySelection() { 4804 boolean copiedSomething = false; 4805 String selection = getSelection(); 4806 if (selection != "") { 4807 if (DebugFlags.WEB_VIEW) { 4808 Log.v(LOGTAG, "copySelection \"" + selection + "\""); 4809 } 4810 Toast.makeText(mContext 4811 , com.android.internal.R.string.text_copied 4812 , Toast.LENGTH_SHORT).show(); 4813 copiedSomething = true; 4814 ClipboardManager cm = (ClipboardManager)getContext() 4815 .getSystemService(Context.CLIPBOARD_SERVICE); 4816 cm.setText(selection); 4817 } 4818 invalidate(); // remove selection region and pointer 4819 return copiedSomething; 4820 } 4821 4822 /** 4823 * Returns the currently highlighted text as a string. 4824 */ 4825 String getSelection() { 4826 if (mNativeClass == 0) return ""; 4827 return nativeGetSelection(); 4828 } 4829 4830 @Override 4831 protected void onAttachedToWindow() { 4832 super.onAttachedToWindow(); 4833 if (hasWindowFocus()) setActive(true); 4834 final ViewTreeObserver treeObserver = getViewTreeObserver(); 4835 if (treeObserver != null) { 4836 if (mGlobalLayoutListener == null) { 4837 mGlobalLayoutListener = new InnerGlobalLayoutListener(); 4838 treeObserver.addOnGlobalLayoutListener(mGlobalLayoutListener); 4839 } 4840 if (mScrollChangedListener == null) { 4841 mScrollChangedListener = new InnerScrollChangedListener(); 4842 treeObserver.addOnScrollChangedListener(mScrollChangedListener); 4843 } 4844 } 4845 } 4846 4847 @Override 4848 protected void onDetachedFromWindow() { 4849 clearHelpers(); 4850 mZoomManager.dismissZoomPicker(); 4851 if (hasWindowFocus()) setActive(false); 4852 4853 final ViewTreeObserver treeObserver = getViewTreeObserver(); 4854 if (treeObserver != null) { 4855 if (mGlobalLayoutListener != null) { 4856 treeObserver.removeGlobalOnLayoutListener(mGlobalLayoutListener); 4857 mGlobalLayoutListener = null; 4858 } 4859 if (mScrollChangedListener != null) { 4860 treeObserver.removeOnScrollChangedListener(mScrollChangedListener); 4861 mScrollChangedListener = null; 4862 } 4863 } 4864 4865 super.onDetachedFromWindow(); 4866 } 4867 4868 @Override 4869 protected void onVisibilityChanged(View changedView, int visibility) { 4870 super.onVisibilityChanged(changedView, visibility); 4871 // The zoomManager may be null if the webview is created from XML that 4872 // specifies the view's visibility param as not visible (see http://b/2794841) 4873 if (visibility != View.VISIBLE && mZoomManager != null) { 4874 mZoomManager.dismissZoomPicker(); 4875 } 4876 } 4877 4878 /** 4879 * @deprecated WebView no longer needs to implement 4880 * ViewGroup.OnHierarchyChangeListener. This method does nothing now. 4881 */ 4882 @Deprecated 4883 public void onChildViewAdded(View parent, View child) {} 4884 4885 /** 4886 * @deprecated WebView no longer needs to implement 4887 * ViewGroup.OnHierarchyChangeListener. This method does nothing now. 4888 */ 4889 @Deprecated 4890 public void onChildViewRemoved(View p, View child) {} 4891 4892 /** 4893 * @deprecated WebView should not have implemented 4894 * ViewTreeObserver.OnGlobalFocusChangeListener. This method 4895 * does nothing now. 4896 */ 4897 @Deprecated 4898 public void onGlobalFocusChanged(View oldFocus, View newFocus) { 4899 } 4900 4901 private void setActive(boolean active) { 4902 if (active) { 4903 if (hasFocus()) { 4904 // If our window regained focus, and we have focus, then begin 4905 // drawing the cursor ring 4906 mDrawCursorRing = true; 4907 setFocusControllerActive(true); 4908 if (mNativeClass != 0) { 4909 nativeRecordButtons(true, false, true); 4910 } 4911 } else { 4912 if (!inEditingMode()) { 4913 // If our window gained focus, but we do not have it, do not 4914 // draw the cursor ring. 4915 mDrawCursorRing = false; 4916 setFocusControllerActive(false); 4917 } 4918 // We do not call nativeRecordButtons here because we assume 4919 // that when we lost focus, or window focus, it got called with 4920 // false for the first parameter 4921 } 4922 } else { 4923 if (!mZoomManager.isZoomPickerVisible()) { 4924 /* 4925 * The external zoom controls come in their own window, so our 4926 * window loses focus. Our policy is to not draw the cursor ring 4927 * if our window is not focused, but this is an exception since 4928 * the user can still navigate the web page with the zoom 4929 * controls showing. 4930 */ 4931 mDrawCursorRing = false; 4932 } 4933 mGotKeyDown = false; 4934 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 4935 mTouchMode = TOUCH_DONE_MODE; 4936 if (mNativeClass != 0) { 4937 nativeRecordButtons(false, false, true); 4938 } 4939 setFocusControllerActive(false); 4940 } 4941 invalidate(); 4942 } 4943 4944 // To avoid drawing the cursor ring, and remove the TextView when our window 4945 // loses focus. 4946 @Override 4947 public void onWindowFocusChanged(boolean hasWindowFocus) { 4948 setActive(hasWindowFocus); 4949 if (hasWindowFocus) { 4950 JWebCoreJavaBridge.setActiveWebView(this); 4951 } else { 4952 JWebCoreJavaBridge.removeActiveWebView(this); 4953 } 4954 super.onWindowFocusChanged(hasWindowFocus); 4955 } 4956 4957 /* 4958 * Pass a message to WebCore Thread, telling the WebCore::Page's 4959 * FocusController to be "inactive" so that it will 4960 * not draw the blinking cursor. It gets set to "active" to draw the cursor 4961 * in WebViewCore.cpp, when the WebCore thread receives key events/clicks. 4962 */ 4963 /* package */ void setFocusControllerActive(boolean active) { 4964 if (mWebViewCore == null) return; 4965 mWebViewCore.sendMessage(EventHub.SET_ACTIVE, active ? 1 : 0, 0); 4966 // Need to send this message after the document regains focus. 4967 if (active && mListBoxMessage != null) { 4968 mWebViewCore.sendMessage(mListBoxMessage); 4969 mListBoxMessage = null; 4970 } 4971 } 4972 4973 @Override 4974 protected void onFocusChanged(boolean focused, int direction, 4975 Rect previouslyFocusedRect) { 4976 if (DebugFlags.WEB_VIEW) { 4977 Log.v(LOGTAG, "MT focusChanged " + focused + ", " + direction); 4978 } 4979 if (focused) { 4980 // When we regain focus, if we have window focus, resume drawing 4981 // the cursor ring 4982 if (hasWindowFocus()) { 4983 mDrawCursorRing = true; 4984 if (mNativeClass != 0) { 4985 nativeRecordButtons(true, false, true); 4986 } 4987 setFocusControllerActive(true); 4988 //} else { 4989 // The WebView has gained focus while we do not have 4990 // windowfocus. When our window lost focus, we should have 4991 // called nativeRecordButtons(false...) 4992 } 4993 } else { 4994 // When we lost focus, unless focus went to the TextView (which is 4995 // true if we are in editing mode), stop drawing the cursor ring. 4996 if (!inEditingMode()) { 4997 mDrawCursorRing = false; 4998 if (mNativeClass != 0) { 4999 nativeRecordButtons(false, false, true); 5000 } 5001 setFocusControllerActive(false); 5002 } 5003 mGotKeyDown = false; 5004 } 5005 5006 super.onFocusChanged(focused, direction, previouslyFocusedRect); 5007 } 5008 5009 void setGLRectViewport() { 5010 // Use the getGlobalVisibleRect() to get the intersection among the parents 5011 Rect webViewRect = new Rect(); 5012 boolean visible = getGlobalVisibleRect(webViewRect); 5013 5014 // Then need to invert the Y axis, just for GL 5015 View rootView = getRootView(); 5016 int rootViewHeight = rootView.getHeight(); 5017 int savedWebViewBottom = webViewRect.bottom; 5018 webViewRect.bottom = rootViewHeight - webViewRect.top; 5019 webViewRect.top = rootViewHeight - savedWebViewBottom; 5020 5021 // Store the viewport 5022 mGLRectViewport = webViewRect; 5023 } 5024 5025 /** 5026 * @hide 5027 */ 5028 @Override 5029 protected boolean setFrame(int left, int top, int right, int bottom) { 5030 boolean changed = super.setFrame(left, top, right, bottom); 5031 if (!changed && mHeightCanMeasure) { 5032 // When mHeightCanMeasure is true, we will set mLastHeightSent to 0 5033 // in WebViewCore after we get the first layout. We do call 5034 // requestLayout() when we get contentSizeChanged(). But the View 5035 // system won't call onSizeChanged if the dimension is not changed. 5036 // In this case, we need to call sendViewSizeZoom() explicitly to 5037 // notify the WebKit about the new dimensions. 5038 sendViewSizeZoom(false); 5039 } 5040 setGLRectViewport(); 5041 return changed; 5042 } 5043 5044 @Override 5045 protected void onSizeChanged(int w, int h, int ow, int oh) { 5046 super.onSizeChanged(w, h, ow, oh); 5047 5048 // adjust the max viewport width depending on the view dimensions. This 5049 // is to ensure the scaling is not going insane. So do not shrink it if 5050 // the view size is temporarily smaller, e.g. when soft keyboard is up. 5051 int newMaxViewportWidth = (int) (Math.max(w, h) / mZoomManager.getDefaultMinZoomScale()); 5052 if (newMaxViewportWidth > sMaxViewportWidth) { 5053 sMaxViewportWidth = newMaxViewportWidth; 5054 } 5055 5056 mZoomManager.onSizeChanged(w, h, ow, oh); 5057 } 5058 5059 @Override 5060 protected void onScrollChanged(int l, int t, int oldl, int oldt) { 5061 super.onScrollChanged(l, t, oldl, oldt); 5062 if (!mInOverScrollMode) { 5063 sendOurVisibleRect(); 5064 // update WebKit if visible title bar height changed. The logic is same 5065 // as getVisibleTitleHeight. 5066 int titleHeight = getTitleHeight(); 5067 if (Math.max(titleHeight - t, 0) != Math.max(titleHeight - oldt, 0)) { 5068 sendViewSizeZoom(false); 5069 } 5070 } 5071 } 5072 5073 @Override 5074 public boolean dispatchKeyEvent(KeyEvent event) { 5075 boolean dispatch = true; 5076 5077 // Textfields, plugins, and contentEditable nodes need to receive the 5078 // shift up key even if another key was released while the shift key 5079 // was held down. 5080 if (!inEditingMode() && (mNativeClass == 0 5081 || !nativePageShouldHandleShiftAndArrows())) { 5082 if (event.getAction() == KeyEvent.ACTION_DOWN) { 5083 mGotKeyDown = true; 5084 } else { 5085 if (!mGotKeyDown) { 5086 /* 5087 * We got a key up for which we were not the recipient of 5088 * the original key down. Don't give it to the view. 5089 */ 5090 dispatch = false; 5091 } 5092 mGotKeyDown = false; 5093 } 5094 } 5095 5096 if (dispatch) { 5097 return super.dispatchKeyEvent(event); 5098 } else { 5099 // We didn't dispatch, so let something else handle the key 5100 return false; 5101 } 5102 } 5103 5104 // Here are the snap align logic: 5105 // 1. If it starts nearly horizontally or vertically, snap align; 5106 // 2. If there is a dramitic direction change, let it go; 5107 // 3. If there is a same direction back and forth, lock it. 5108 5109 // adjustable parameters 5110 private int mMinLockSnapReverseDistance; 5111 private static final float MAX_SLOPE_FOR_DIAG = 1.5f; 5112 private static final int MIN_BREAK_SNAP_CROSS_DISTANCE = 80; 5113 5114 private boolean hitFocusedPlugin(int contentX, int contentY) { 5115 if (DebugFlags.WEB_VIEW) { 5116 Log.v(LOGTAG, "nativeFocusIsPlugin()=" + nativeFocusIsPlugin()); 5117 Rect r = nativeFocusNodeBounds(); 5118 Log.v(LOGTAG, "nativeFocusNodeBounds()=(" + r.left + ", " + r.top 5119 + ", " + r.right + ", " + r.bottom + ")"); 5120 } 5121 return nativeFocusIsPlugin() 5122 && nativeFocusNodeBounds().contains(contentX, contentY); 5123 } 5124 5125 private boolean shouldForwardTouchEvent() { 5126 return mFullScreenHolder != null || (mForwardTouchEvents 5127 && !mSelectingText 5128 && mPreventDefault != PREVENT_DEFAULT_IGNORE); 5129 } 5130 5131 private boolean inFullScreenMode() { 5132 return mFullScreenHolder != null; 5133 } 5134 5135 private void dismissFullScreenMode() { 5136 if (inFullScreenMode()) { 5137 mFullScreenHolder.dismiss(); 5138 mFullScreenHolder = null; 5139 } 5140 } 5141 5142 void onPinchToZoomAnimationStart() { 5143 // cancel the single touch handling 5144 cancelTouch(); 5145 onZoomAnimationStart(); 5146 } 5147 5148 void onPinchToZoomAnimationEnd(ScaleGestureDetector detector) { 5149 onZoomAnimationEnd(); 5150 // start a drag, TOUCH_PINCH_DRAG, can't use TOUCH_INIT_MODE as 5151 // it may trigger the unwanted click, can't use TOUCH_DRAG_MODE 5152 // as it may trigger the unwanted fling. 5153 mTouchMode = TOUCH_PINCH_DRAG; 5154 mConfirmMove = true; 5155 startTouch(detector.getFocusX(), detector.getFocusY(), mLastTouchTime); 5156 } 5157 5158 // See if there is a layer at x, y and switch to TOUCH_DRAG_LAYER_MODE if a 5159 // layer is found. 5160 private void startScrollingLayer(float x, float y) { 5161 int contentX = viewToContentX((int) x + mScrollX); 5162 int contentY = viewToContentY((int) y + mScrollY); 5163 mScrollingLayer = nativeScrollableLayer(contentX, contentY, 5164 mScrollingLayerRect); 5165 if (mScrollingLayer != 0) { 5166 mTouchMode = TOUCH_DRAG_LAYER_MODE; 5167 } 5168 } 5169 5170 // 1/(density * density) used to compute the distance between points. 5171 // Computed in init(). 5172 private float DRAG_LAYER_INVERSE_DENSITY_SQUARED; 5173 5174 // The distance between two points reported in onTouchEvent scaled by the 5175 // density of the screen. 5176 private static final int DRAG_LAYER_FINGER_DISTANCE = 20000; 5177 5178 @Override 5179 public boolean onTouchEvent(MotionEvent ev) { 5180 if (mNativeClass == 0 || (!isClickable() && !isLongClickable())) { 5181 return false; 5182 } 5183 5184 if (DebugFlags.WEB_VIEW) { 5185 Log.v(LOGTAG, ev + " at " + ev.getEventTime() 5186 + " mTouchMode=" + mTouchMode 5187 + " numPointers=" + ev.getPointerCount()); 5188 } 5189 5190 int action = ev.getAction(); 5191 float x = ev.getX(); 5192 float y = ev.getY(); 5193 long eventTime = ev.getEventTime(); 5194 5195 // mDeferMultitouch is a hack for layout tests, where it is used to 5196 // force passing multi-touch events to webkit. 5197 // FIXME: always pass multi-touch events to webkit and remove everything 5198 // related to mDeferMultitouch. 5199 if (ev.getPointerCount() > 1 && 5200 (mDeferMultitouch || mZoomManager.isZoomScaleFixed())) { 5201 if (DebugFlags.WEB_VIEW) { 5202 Log.v(LOGTAG, "passing " + ev.getPointerCount() + " points to webkit"); 5203 } 5204 passMultiTouchToWebKit(ev); 5205 return true; 5206 } 5207 5208 final ScaleGestureDetector detector = 5209 mZoomManager.getMultiTouchGestureDetector(); 5210 5211 if (mZoomManager.supportsMultiTouchZoom() && ev.getPointerCount() > 1) { 5212 if (!detector.isInProgress() && 5213 ev.getActionMasked() != MotionEvent.ACTION_POINTER_DOWN) { 5214 // Insert a fake pointer down event in order to start 5215 // the zoom scale detector. 5216 MotionEvent temp = MotionEvent.obtain(ev); 5217 // Clear the original event and set it to 5218 // ACTION_POINTER_DOWN. 5219 try { 5220 temp.setAction(temp.getAction() & 5221 ~MotionEvent.ACTION_MASK | 5222 MotionEvent.ACTION_POINTER_DOWN); 5223 detector.onTouchEvent(temp); 5224 } finally { 5225 temp.recycle(); 5226 } 5227 } 5228 5229 detector.onTouchEvent(ev); 5230 5231 if (detector.isInProgress()) { 5232 mLastTouchTime = eventTime; 5233 cancelLongPress(); 5234 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5235 if (!mZoomManager.supportsPanDuringZoom()) { 5236 return true; 5237 } 5238 mTouchMode = TOUCH_DRAG_MODE; 5239 if (mVelocityTracker == null) { 5240 mVelocityTracker = VelocityTracker.obtain(); 5241 } 5242 } 5243 5244 x = detector.getFocusX(); 5245 y = detector.getFocusY(); 5246 action = ev.getAction() & MotionEvent.ACTION_MASK; 5247 if (action == MotionEvent.ACTION_POINTER_DOWN) { 5248 cancelTouch(); 5249 action = MotionEvent.ACTION_DOWN; 5250 } else if (action == MotionEvent.ACTION_POINTER_UP) { 5251 // set mLastTouchX/Y to the remaining point 5252 mLastTouchX = x; 5253 mLastTouchY = y; 5254 } else if (action == MotionEvent.ACTION_MOVE) { 5255 // negative x or y indicate it is on the edge, skip it. 5256 if (x < 0 || y < 0) { 5257 return true; 5258 } 5259 } 5260 } 5261 5262 // Due to the touch screen edge effect, a touch closer to the edge 5263 // always snapped to the edge. As getViewWidth() can be different from 5264 // getWidth() due to the scrollbar, adjusting the point to match 5265 // getViewWidth(). Same applied to the height. 5266 x = Math.min(x, getViewWidth() - 1); 5267 y = Math.min(y, getViewHeightWithTitle() - 1); 5268 5269 float fDeltaX = mLastTouchX - x; 5270 float fDeltaY = mLastTouchY - y; 5271 int deltaX = (int) fDeltaX; 5272 int deltaY = (int) fDeltaY; 5273 int contentX = viewToContentX((int) x + mScrollX); 5274 int contentY = viewToContentY((int) y + mScrollY); 5275 5276 switch (action) { 5277 case MotionEvent.ACTION_DOWN: { 5278 mPreventDefault = PREVENT_DEFAULT_NO; 5279 mConfirmMove = false; 5280 mInitialHitTestResult = null; 5281 if (!mScroller.isFinished()) { 5282 // stop the current scroll animation, but if this is 5283 // the start of a fling, allow it to add to the current 5284 // fling's velocity 5285 mScroller.abortAnimation(); 5286 mTouchMode = TOUCH_DRAG_START_MODE; 5287 mConfirmMove = true; 5288 mPrivateHandler.removeMessages(RESUME_WEBCORE_PRIORITY); 5289 } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) { 5290 mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP); 5291 if (getSettings().supportTouchOnly()) { 5292 removeTouchHighlight(true); 5293 } 5294 if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) { 5295 mTouchMode = TOUCH_DOUBLE_TAP_MODE; 5296 } else { 5297 // commit the short press action for the previous tap 5298 doShortPress(); 5299 mTouchMode = TOUCH_INIT_MODE; 5300 mDeferTouchProcess = (!inFullScreenMode() 5301 && mForwardTouchEvents) ? hitFocusedPlugin( 5302 contentX, contentY) : false; 5303 } 5304 } else { // the normal case 5305 mTouchMode = TOUCH_INIT_MODE; 5306 mDeferTouchProcess = (!inFullScreenMode() 5307 && mForwardTouchEvents) ? hitFocusedPlugin( 5308 contentX, contentY) : false; 5309 mWebViewCore.sendMessage( 5310 EventHub.UPDATE_FRAME_CACHE_IF_LOADING); 5311 if (getSettings().supportTouchOnly()) { 5312 TouchHighlightData data = new TouchHighlightData(); 5313 data.mX = contentX; 5314 data.mY = contentY; 5315 data.mSlop = viewToContentDimension(mNavSlop); 5316 mWebViewCore.sendMessageDelayed( 5317 EventHub.GET_TOUCH_HIGHLIGHT_RECTS, data, 5318 ViewConfiguration.getTapTimeout()); 5319 if (DEBUG_TOUCH_HIGHLIGHT) { 5320 if (getSettings().getNavDump()) { 5321 mTouchHighlightX = (int) x + mScrollX; 5322 mTouchHighlightY = (int) y + mScrollY; 5323 mPrivateHandler.postDelayed(new Runnable() { 5324 public void run() { 5325 mTouchHighlightX = mTouchHighlightY = 0; 5326 invalidate(); 5327 } 5328 }, TOUCH_HIGHLIGHT_ELAPSE_TIME); 5329 } 5330 } 5331 } 5332 if (mLogEvent && eventTime - mLastTouchUpTime < 1000) { 5333 EventLog.writeEvent(EventLogTags.BROWSER_DOUBLE_TAP_DURATION, 5334 (eventTime - mLastTouchUpTime), eventTime); 5335 } 5336 if (mSelectingText) { 5337 mDrawSelectionPointer = false; 5338 mSelectionStarted = nativeStartSelection(contentX, contentY); 5339 if (DebugFlags.WEB_VIEW) { 5340 Log.v(LOGTAG, "select=" + contentX + "," + contentY); 5341 } 5342 invalidate(); 5343 } 5344 } 5345 // Trigger the link 5346 if (mTouchMode == TOUCH_INIT_MODE 5347 || mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 5348 mPrivateHandler.sendEmptyMessageDelayed( 5349 SWITCH_TO_SHORTPRESS, TAP_TIMEOUT); 5350 mPrivateHandler.sendEmptyMessageDelayed( 5351 SWITCH_TO_LONGPRESS, LONG_PRESS_TIMEOUT); 5352 if (inFullScreenMode() || mDeferTouchProcess) { 5353 mPreventDefault = PREVENT_DEFAULT_YES; 5354 } else if (mForwardTouchEvents) { 5355 mPreventDefault = PREVENT_DEFAULT_MAYBE_YES; 5356 } else { 5357 mPreventDefault = PREVENT_DEFAULT_NO; 5358 } 5359 // pass the touch events from UI thread to WebCore thread 5360 if (shouldForwardTouchEvent()) { 5361 TouchEventData ted = new TouchEventData(); 5362 ted.mAction = action; 5363 ted.mPoints = new Point[1]; 5364 ted.mPoints[0] = new Point(contentX, contentY); 5365 ted.mMetaState = ev.getMetaState(); 5366 ted.mReprocess = mDeferTouchProcess; 5367 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5368 if (mDeferTouchProcess) { 5369 // still needs to set them for compute deltaX/Y 5370 mLastTouchX = x; 5371 mLastTouchY = y; 5372 break; 5373 } 5374 if (!inFullScreenMode()) { 5375 mPrivateHandler.removeMessages(PREVENT_DEFAULT_TIMEOUT); 5376 mPrivateHandler.sendMessageDelayed(mPrivateHandler 5377 .obtainMessage(PREVENT_DEFAULT_TIMEOUT, 5378 action, 0), TAP_TIMEOUT); 5379 } 5380 } 5381 } 5382 startTouch(x, y, eventTime); 5383 break; 5384 } 5385 case MotionEvent.ACTION_MOVE: { 5386 boolean firstMove = false; 5387 if (!mConfirmMove && (deltaX * deltaX + deltaY * deltaY) 5388 >= mTouchSlopSquare) { 5389 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 5390 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5391 mConfirmMove = true; 5392 firstMove = true; 5393 if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 5394 mTouchMode = TOUCH_INIT_MODE; 5395 } 5396 if (getSettings().supportTouchOnly()) { 5397 removeTouchHighlight(true); 5398 } 5399 } 5400 // pass the touch events from UI thread to WebCore thread 5401 if (shouldForwardTouchEvent() && mConfirmMove && (firstMove 5402 || eventTime - mLastSentTouchTime > mCurrentTouchInterval)) { 5403 TouchEventData ted = new TouchEventData(); 5404 ted.mAction = action; 5405 ted.mPoints = new Point[1]; 5406 ted.mPoints[0] = new Point(contentX, contentY); 5407 ted.mMetaState = ev.getMetaState(); 5408 ted.mReprocess = mDeferTouchProcess; 5409 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5410 mLastSentTouchTime = eventTime; 5411 if (mDeferTouchProcess) { 5412 break; 5413 } 5414 if (firstMove && !inFullScreenMode()) { 5415 mPrivateHandler.sendMessageDelayed(mPrivateHandler 5416 .obtainMessage(PREVENT_DEFAULT_TIMEOUT, 5417 action, 0), TAP_TIMEOUT); 5418 } 5419 } 5420 if (mTouchMode == TOUCH_DONE_MODE 5421 || mPreventDefault == PREVENT_DEFAULT_YES) { 5422 // no dragging during scroll zoom animation, or when prevent 5423 // default is yes 5424 break; 5425 } 5426 if (mVelocityTracker == null) { 5427 Log.e(LOGTAG, "Got null mVelocityTracker when " 5428 + "mPreventDefault = " + mPreventDefault 5429 + " mDeferTouchProcess = " + mDeferTouchProcess 5430 + " mTouchMode = " + mTouchMode); 5431 } 5432 mVelocityTracker.addMovement(ev); 5433 if (mSelectingText && mSelectionStarted) { 5434 if (DebugFlags.WEB_VIEW) { 5435 Log.v(LOGTAG, "extend=" + contentX + "," + contentY); 5436 } 5437 ViewParent parent = getParent(); 5438 if (parent != null) { 5439 parent.requestDisallowInterceptTouchEvent(true); 5440 } 5441 int layer = nativeScrollableLayer(contentX, contentY, mScrollingLayerRect); 5442 if (layer == 0) { 5443 mAutoScrollX = x <= SELECT_SCROLL ? -SELECT_SCROLL 5444 : x >= getViewWidth() - SELECT_SCROLL 5445 ? SELECT_SCROLL : 0; 5446 mAutoScrollY = y <= SELECT_SCROLL ? -SELECT_SCROLL 5447 : y >= getViewHeightWithTitle() - SELECT_SCROLL 5448 ? SELECT_SCROLL : 0; 5449 if (!mSentAutoScrollMessage) { 5450 mSentAutoScrollMessage = true; 5451 mPrivateHandler.sendEmptyMessageDelayed( 5452 SCROLL_SELECT_TEXT, SELECT_SCROLL_INTERVAL); 5453 } 5454 } else { 5455 // TODO: allow scrollable overflow div to autoscroll 5456 } 5457 nativeExtendSelection(contentX, contentY); 5458 invalidate(); 5459 break; 5460 } 5461 5462 if (mTouchMode != TOUCH_DRAG_MODE && 5463 mTouchMode != TOUCH_DRAG_LAYER_MODE) { 5464 5465 if (!mConfirmMove) { 5466 break; 5467 } 5468 5469 if (mPreventDefault == PREVENT_DEFAULT_MAYBE_YES 5470 || mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN) { 5471 // track mLastTouchTime as we may need to do fling at 5472 // ACTION_UP 5473 mLastTouchTime = eventTime; 5474 break; 5475 } 5476 5477 // Only lock dragging to one axis if we don't have a scale in progress. 5478 // Scaling implies free-roaming movement. Note this is only ever a question 5479 // if mZoomManager.supportsPanDuringZoom() is true. 5480 if (detector != null && !detector.isInProgress()) { 5481 // if it starts nearly horizontal or vertical, enforce it 5482 int ax = Math.abs(deltaX); 5483 int ay = Math.abs(deltaY); 5484 if (ax > MAX_SLOPE_FOR_DIAG * ay) { 5485 mSnapScrollMode = SNAP_X; 5486 mSnapPositive = deltaX > 0; 5487 } else if (ay > MAX_SLOPE_FOR_DIAG * ax) { 5488 mSnapScrollMode = SNAP_Y; 5489 mSnapPositive = deltaY > 0; 5490 } 5491 } 5492 5493 mTouchMode = TOUCH_DRAG_MODE; 5494 mLastTouchX = x; 5495 mLastTouchY = y; 5496 fDeltaX = 0.0f; 5497 fDeltaY = 0.0f; 5498 deltaX = 0; 5499 deltaY = 0; 5500 5501 startScrollingLayer(x, y); 5502 startDrag(); 5503 } 5504 5505 // do pan 5506 boolean done = false; 5507 boolean keepScrollBarsVisible = false; 5508 if (Math.abs(fDeltaX) < 1.0f && Math.abs(fDeltaY) < 1.0f) { 5509 mLastTouchX = x; 5510 mLastTouchY = y; 5511 keepScrollBarsVisible = done = true; 5512 } else { 5513 if (mSnapScrollMode == SNAP_X || mSnapScrollMode == SNAP_Y) { 5514 int ax = Math.abs(deltaX); 5515 int ay = Math.abs(deltaY); 5516 if (mSnapScrollMode == SNAP_X) { 5517 // radical change means getting out of snap mode 5518 if (ay > MAX_SLOPE_FOR_DIAG * ax 5519 && ay > MIN_BREAK_SNAP_CROSS_DISTANCE) { 5520 mSnapScrollMode = SNAP_NONE; 5521 } 5522 // reverse direction means lock in the snap mode 5523 if (ax > MAX_SLOPE_FOR_DIAG * ay && 5524 (mSnapPositive 5525 ? deltaX < -mMinLockSnapReverseDistance 5526 : deltaX > mMinLockSnapReverseDistance)) { 5527 mSnapScrollMode |= SNAP_LOCK; 5528 } 5529 } else { 5530 // radical change means getting out of snap mode 5531 if (ax > MAX_SLOPE_FOR_DIAG * ay 5532 && ax > MIN_BREAK_SNAP_CROSS_DISTANCE) { 5533 mSnapScrollMode = SNAP_NONE; 5534 } 5535 // reverse direction means lock in the snap mode 5536 if (ay > MAX_SLOPE_FOR_DIAG * ax && 5537 (mSnapPositive 5538 ? deltaY < -mMinLockSnapReverseDistance 5539 : deltaY > mMinLockSnapReverseDistance)) { 5540 mSnapScrollMode |= SNAP_LOCK; 5541 } 5542 } 5543 } 5544 if (mSnapScrollMode != SNAP_NONE) { 5545 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 5546 deltaY = 0; 5547 } else { 5548 deltaX = 0; 5549 } 5550 } 5551 if ((deltaX | deltaY) != 0) { 5552 if (deltaX != 0) { 5553 mLastTouchX = x; 5554 } 5555 if (deltaY != 0) { 5556 mLastTouchY = y; 5557 } 5558 mHeldMotionless = MOTIONLESS_FALSE; 5559 } else { 5560 // keep the scrollbar on the screen even there is no 5561 // scroll 5562 mLastTouchX = x; 5563 mLastTouchY = y; 5564 keepScrollBarsVisible = true; 5565 } 5566 mLastTouchTime = eventTime; 5567 mUserScroll = true; 5568 } 5569 5570 doDrag(deltaX, deltaY); 5571 5572 // Turn off scrollbars when dragging a layer. 5573 if (keepScrollBarsVisible && 5574 mTouchMode != TOUCH_DRAG_LAYER_MODE) { 5575 if (mHeldMotionless != MOTIONLESS_TRUE) { 5576 mHeldMotionless = MOTIONLESS_TRUE; 5577 invalidate(); 5578 } 5579 // keep the scrollbar on the screen even there is no scroll 5580 awakenScrollBars(ViewConfiguration.getScrollDefaultDelay(), 5581 false); 5582 // return false to indicate that we can't pan out of the 5583 // view space 5584 return !done; 5585 } 5586 break; 5587 } 5588 case MotionEvent.ACTION_UP: { 5589 if (!isFocused()) requestFocus(); 5590 // pass the touch events from UI thread to WebCore thread 5591 if (shouldForwardTouchEvent()) { 5592 TouchEventData ted = new TouchEventData(); 5593 ted.mAction = action; 5594 ted.mPoints = new Point[1]; 5595 ted.mPoints[0] = new Point(contentX, contentY); 5596 ted.mMetaState = ev.getMetaState(); 5597 ted.mReprocess = mDeferTouchProcess; 5598 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5599 } 5600 mLastTouchUpTime = eventTime; 5601 switch (mTouchMode) { 5602 case TOUCH_DOUBLE_TAP_MODE: // double tap 5603 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 5604 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5605 if (inFullScreenMode() || mDeferTouchProcess) { 5606 TouchEventData ted = new TouchEventData(); 5607 ted.mAction = WebViewCore.ACTION_DOUBLETAP; 5608 ted.mPoints = new Point[1]; 5609 ted.mPoints[0] = new Point(contentX, contentY); 5610 ted.mMetaState = ev.getMetaState(); 5611 ted.mReprocess = mDeferTouchProcess; 5612 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5613 } else if (mPreventDefault != PREVENT_DEFAULT_YES){ 5614 mZoomManager.handleDoubleTap(mLastTouchX, mLastTouchY); 5615 mTouchMode = TOUCH_DONE_MODE; 5616 } 5617 break; 5618 case TOUCH_INIT_MODE: // tap 5619 case TOUCH_SHORTPRESS_START_MODE: 5620 case TOUCH_SHORTPRESS_MODE: 5621 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 5622 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5623 if (mConfirmMove) { 5624 Log.w(LOGTAG, "Miss a drag as we are waiting for" + 5625 " WebCore's response for touch down."); 5626 if (mPreventDefault != PREVENT_DEFAULT_YES 5627 && (computeMaxScrollX() > 0 5628 || computeMaxScrollY() > 0)) { 5629 // If the user has performed a very quick touch 5630 // sequence it is possible that we may get here 5631 // before WebCore has had a chance to process the events. 5632 // In this case, any call to preventDefault in the 5633 // JS touch handler will not have been executed yet. 5634 // Hence we will see both the UI (now) and WebCore 5635 // (when context switches) handling the event, 5636 // regardless of whether the web developer actually 5637 // doeses preventDefault in their touch handler. This 5638 // is the nature of our asynchronous touch model. 5639 5640 // we will not rewrite drag code here, but we 5641 // will try fling if it applies. 5642 WebViewCore.reducePriority(); 5643 // to get better performance, pause updating the 5644 // picture 5645 WebViewCore.pauseUpdatePicture(mWebViewCore); 5646 // fall through to TOUCH_DRAG_MODE 5647 } else { 5648 // WebKit may consume the touch event and modify 5649 // DOM. drawContentPicture() will be called with 5650 // animateSroll as true for better performance. 5651 // Force redraw in high-quality. 5652 invalidate(); 5653 break; 5654 } 5655 } else { 5656 if (mSelectingText) { 5657 // tapping on selection or controls does nothing 5658 if (!nativeHitSelection(contentX, contentY)) { 5659 selectionDone(); 5660 } 5661 break; 5662 } 5663 // only trigger double tap if the WebView is 5664 // scalable 5665 if (mTouchMode == TOUCH_INIT_MODE 5666 && (canZoomIn() || canZoomOut())) { 5667 mPrivateHandler.sendEmptyMessageDelayed( 5668 RELEASE_SINGLE_TAP, ViewConfiguration 5669 .getDoubleTapTimeout()); 5670 } else { 5671 doShortPress(); 5672 } 5673 break; 5674 } 5675 case TOUCH_DRAG_MODE: 5676 case TOUCH_DRAG_LAYER_MODE: 5677 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 5678 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 5679 // if the user waits a while w/o moving before the 5680 // up, we don't want to do a fling 5681 if (eventTime - mLastTouchTime <= MIN_FLING_TIME) { 5682 if (mVelocityTracker == null) { 5683 Log.e(LOGTAG, "Got null mVelocityTracker when " 5684 + "mPreventDefault = " 5685 + mPreventDefault 5686 + " mDeferTouchProcess = " 5687 + mDeferTouchProcess); 5688 } 5689 mVelocityTracker.addMovement(ev); 5690 // set to MOTIONLESS_IGNORE so that it won't keep 5691 // removing and sending message in 5692 // drawCoreAndCursorRing() 5693 mHeldMotionless = MOTIONLESS_IGNORE; 5694 doFling(); 5695 break; 5696 } else { 5697 if (mScroller.springBack(mScrollX, mScrollY, 0, 5698 computeMaxScrollX(), 0, 5699 computeMaxScrollY())) { 5700 invalidate(); 5701 } 5702 } 5703 // redraw in high-quality, as we're done dragging 5704 mHeldMotionless = MOTIONLESS_TRUE; 5705 invalidate(); 5706 // fall through 5707 case TOUCH_DRAG_START_MODE: 5708 // TOUCH_DRAG_START_MODE should not happen for the real 5709 // device as we almost certain will get a MOVE. But this 5710 // is possible on emulator. 5711 mLastVelocity = 0; 5712 WebViewCore.resumePriority(); 5713 if (!mSelectingText) { 5714 WebViewCore.resumeUpdatePicture(mWebViewCore); 5715 } 5716 break; 5717 } 5718 stopTouch(); 5719 break; 5720 } 5721 case MotionEvent.ACTION_CANCEL: { 5722 if (mTouchMode == TOUCH_DRAG_MODE) { 5723 mScroller.springBack(mScrollX, mScrollY, 0, 5724 computeMaxScrollX(), 0, computeMaxScrollY()); 5725 invalidate(); 5726 } 5727 cancelWebCoreTouchEvent(contentX, contentY, false); 5728 cancelTouch(); 5729 break; 5730 } 5731 } 5732 return true; 5733 } 5734 5735 private void passMultiTouchToWebKit(MotionEvent ev) { 5736 TouchEventData ted = new TouchEventData(); 5737 ted.mAction = ev.getAction() & MotionEvent.ACTION_MASK; 5738 final int count = ev.getPointerCount(); 5739 ted.mPoints = new Point[count]; 5740 for (int c = 0; c < count; c++) { 5741 int x = viewToContentX((int) ev.getX(c) + mScrollX); 5742 int y = viewToContentY((int) ev.getY(c) + mScrollY); 5743 ted.mPoints[c] = new Point(x, y); 5744 } 5745 ted.mMetaState = ev.getMetaState(); 5746 ted.mReprocess = mDeferTouchProcess; 5747 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5748 cancelLongPress(); 5749 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5750 mPreventDefault = PREVENT_DEFAULT_IGNORE; 5751 } 5752 5753 private void cancelWebCoreTouchEvent(int x, int y, boolean removeEvents) { 5754 if (shouldForwardTouchEvent()) { 5755 if (removeEvents) { 5756 mWebViewCore.removeMessages(EventHub.TOUCH_EVENT); 5757 } 5758 TouchEventData ted = new TouchEventData(); 5759 ted.mPoints = new Point[1]; 5760 ted.mPoints[0] = new Point(x, y); 5761 ted.mAction = MotionEvent.ACTION_CANCEL; 5762 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5763 mPreventDefault = PREVENT_DEFAULT_IGNORE; 5764 } 5765 } 5766 5767 private void startTouch(float x, float y, long eventTime) { 5768 // Remember where the motion event started 5769 mLastTouchX = x; 5770 mLastTouchY = y; 5771 mLastTouchTime = eventTime; 5772 mVelocityTracker = VelocityTracker.obtain(); 5773 mSnapScrollMode = SNAP_NONE; 5774 } 5775 5776 private void startDrag() { 5777 WebViewCore.reducePriority(); 5778 // to get better performance, pause updating the picture 5779 WebViewCore.pauseUpdatePicture(mWebViewCore); 5780 if (!mDragFromTextInput) { 5781 nativeHideCursor(); 5782 } 5783 5784 if (mHorizontalScrollBarMode != SCROLLBAR_ALWAYSOFF 5785 || mVerticalScrollBarMode != SCROLLBAR_ALWAYSOFF) { 5786 mZoomManager.invokeZoomPicker(); 5787 } 5788 } 5789 5790 private void doDrag(int deltaX, int deltaY) { 5791 if ((deltaX | deltaY) != 0) { 5792 int oldX = mScrollX; 5793 int oldY = mScrollY; 5794 int rangeX = computeMaxScrollX(); 5795 int rangeY = computeMaxScrollY(); 5796 int overscrollDistance = mOverscrollDistance; 5797 5798 // Check for the original scrolling layer in case we change 5799 // directions. mTouchMode might be TOUCH_DRAG_MODE if we have 5800 // reached the edge of a layer but mScrollingLayer will be non-zero 5801 // if we initiated the drag on a layer. 5802 if (mScrollingLayer != 0) { 5803 final int contentX = viewToContentDimension(deltaX); 5804 final int contentY = viewToContentDimension(deltaY); 5805 5806 // Check the scrolling bounds to see if we will actually do any 5807 // scrolling. The rectangle is in document coordinates. 5808 final int maxX = mScrollingLayerRect.right; 5809 final int maxY = mScrollingLayerRect.bottom; 5810 final int resultX = Math.max(0, 5811 Math.min(mScrollingLayerRect.left + contentX, maxX)); 5812 final int resultY = Math.max(0, 5813 Math.min(mScrollingLayerRect.top + contentY, maxY)); 5814 5815 if (resultX != mScrollingLayerRect.left || 5816 resultY != mScrollingLayerRect.top) { 5817 // In case we switched to dragging the page. 5818 mTouchMode = TOUCH_DRAG_LAYER_MODE; 5819 deltaX = contentX; 5820 deltaY = contentY; 5821 oldX = mScrollingLayerRect.left; 5822 oldY = mScrollingLayerRect.top; 5823 rangeX = maxX; 5824 rangeY = maxY; 5825 } else { 5826 // Scroll the main page if we are not going to scroll the 5827 // layer. This does not reset mScrollingLayer in case the 5828 // user changes directions and the layer can scroll the 5829 // other way. 5830 mTouchMode = TOUCH_DRAG_MODE; 5831 } 5832 } 5833 5834 if (mOverScrollGlow != null) { 5835 mOverScrollGlow.setOverScrollDeltas(deltaX, deltaY); 5836 } 5837 5838 overScrollBy(deltaX, deltaY, oldX, oldY, 5839 rangeX, rangeY, 5840 mOverscrollDistance, mOverscrollDistance, true); 5841 if (mOverScrollGlow != null && mOverScrollGlow.isAnimating()) { 5842 invalidate(); 5843 } 5844 } 5845 mZoomManager.keepZoomPickerVisible(); 5846 } 5847 5848 private void stopTouch() { 5849 // we also use mVelocityTracker == null to tell us that we are 5850 // not "moving around", so we can take the slower/prettier 5851 // mode in the drawing code 5852 if (mVelocityTracker != null) { 5853 mVelocityTracker.recycle(); 5854 mVelocityTracker = null; 5855 } 5856 5857 // Release any pulled glows 5858 if (mOverScrollGlow != null) { 5859 mOverScrollGlow.releaseAll(); 5860 } 5861 } 5862 5863 private void cancelTouch() { 5864 // we also use mVelocityTracker == null to tell us that we are 5865 // not "moving around", so we can take the slower/prettier 5866 // mode in the drawing code 5867 if (mVelocityTracker != null) { 5868 mVelocityTracker.recycle(); 5869 mVelocityTracker = null; 5870 } 5871 5872 if ((mTouchMode == TOUCH_DRAG_MODE 5873 || mTouchMode == TOUCH_DRAG_LAYER_MODE) && !mSelectingText) { 5874 WebViewCore.resumePriority(); 5875 WebViewCore.resumeUpdatePicture(mWebViewCore); 5876 } 5877 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 5878 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 5879 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 5880 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 5881 if (getSettings().supportTouchOnly()) { 5882 removeTouchHighlight(true); 5883 } 5884 mHeldMotionless = MOTIONLESS_TRUE; 5885 mTouchMode = TOUCH_DONE_MODE; 5886 nativeHideCursor(); 5887 } 5888 5889 private long mTrackballFirstTime = 0; 5890 private long mTrackballLastTime = 0; 5891 private float mTrackballRemainsX = 0.0f; 5892 private float mTrackballRemainsY = 0.0f; 5893 private int mTrackballXMove = 0; 5894 private int mTrackballYMove = 0; 5895 private boolean mSelectingText = false; 5896 private boolean mSelectionStarted = false; 5897 private boolean mExtendSelection = false; 5898 private boolean mDrawSelectionPointer = false; 5899 private static final int TRACKBALL_KEY_TIMEOUT = 1000; 5900 private static final int TRACKBALL_TIMEOUT = 200; 5901 private static final int TRACKBALL_WAIT = 100; 5902 private static final int TRACKBALL_SCALE = 400; 5903 private static final int TRACKBALL_SCROLL_COUNT = 5; 5904 private static final int TRACKBALL_MOVE_COUNT = 10; 5905 private static final int TRACKBALL_MULTIPLIER = 3; 5906 private static final int SELECT_CURSOR_OFFSET = 16; 5907 private static final int SELECT_SCROLL = 5; 5908 private int mSelectX = 0; 5909 private int mSelectY = 0; 5910 private boolean mFocusSizeChanged = false; 5911 private boolean mTrackballDown = false; 5912 private long mTrackballUpTime = 0; 5913 private long mLastCursorTime = 0; 5914 private Rect mLastCursorBounds; 5915 5916 // Set by default; BrowserActivity clears to interpret trackball data 5917 // directly for movement. Currently, the framework only passes 5918 // arrow key events, not trackball events, from one child to the next 5919 private boolean mMapTrackballToArrowKeys = true; 5920 5921 public void setMapTrackballToArrowKeys(boolean setMap) { 5922 mMapTrackballToArrowKeys = setMap; 5923 } 5924 5925 void resetTrackballTime() { 5926 mTrackballLastTime = 0; 5927 } 5928 5929 @Override 5930 public boolean onTrackballEvent(MotionEvent ev) { 5931 long time = ev.getEventTime(); 5932 if ((ev.getMetaState() & KeyEvent.META_ALT_ON) != 0) { 5933 if (ev.getY() > 0) pageDown(true); 5934 if (ev.getY() < 0) pageUp(true); 5935 return true; 5936 } 5937 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 5938 if (mSelectingText) { 5939 return true; // discard press if copy in progress 5940 } 5941 mTrackballDown = true; 5942 if (mNativeClass == 0) { 5943 return false; 5944 } 5945 nativeRecordButtons(hasFocus() && hasWindowFocus(), true, true); 5946 if (time - mLastCursorTime <= TRACKBALL_TIMEOUT 5947 && !mLastCursorBounds.equals(nativeGetCursorRingBounds())) { 5948 nativeSelectBestAt(mLastCursorBounds); 5949 } 5950 if (DebugFlags.WEB_VIEW) { 5951 Log.v(LOGTAG, "onTrackballEvent down ev=" + ev 5952 + " time=" + time 5953 + " mLastCursorTime=" + mLastCursorTime); 5954 } 5955 if (isInTouchMode()) requestFocusFromTouch(); 5956 return false; // let common code in onKeyDown at it 5957 } 5958 if (ev.getAction() == MotionEvent.ACTION_UP) { 5959 // LONG_PRESS_CENTER is set in common onKeyDown 5960 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 5961 mTrackballDown = false; 5962 mTrackballUpTime = time; 5963 if (mSelectingText) { 5964 if (mExtendSelection) { 5965 copySelection(); 5966 selectionDone(); 5967 } else { 5968 mExtendSelection = true; 5969 nativeSetExtendSelection(); 5970 invalidate(); // draw the i-beam instead of the arrow 5971 } 5972 return true; // discard press if copy in progress 5973 } 5974 if (DebugFlags.WEB_VIEW) { 5975 Log.v(LOGTAG, "onTrackballEvent up ev=" + ev 5976 + " time=" + time 5977 ); 5978 } 5979 return false; // let common code in onKeyUp at it 5980 } 5981 if ((mMapTrackballToArrowKeys && (ev.getMetaState() & KeyEvent.META_SHIFT_ON) == 0) || 5982 (mAccessibilityInjector != null || mAccessibilityScriptInjected)) { 5983 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit"); 5984 return false; 5985 } 5986 if (mTrackballDown) { 5987 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent down quit"); 5988 return true; // discard move if trackball is down 5989 } 5990 if (time - mTrackballUpTime < TRACKBALL_TIMEOUT) { 5991 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent up timeout quit"); 5992 return true; 5993 } 5994 // TODO: alternatively we can do panning as touch does 5995 switchOutDrawHistory(); 5996 if (time - mTrackballLastTime > TRACKBALL_TIMEOUT) { 5997 if (DebugFlags.WEB_VIEW) { 5998 Log.v(LOGTAG, "onTrackballEvent time=" 5999 + time + " last=" + mTrackballLastTime); 6000 } 6001 mTrackballFirstTime = time; 6002 mTrackballXMove = mTrackballYMove = 0; 6003 } 6004 mTrackballLastTime = time; 6005 if (DebugFlags.WEB_VIEW) { 6006 Log.v(LOGTAG, "onTrackballEvent ev=" + ev + " time=" + time); 6007 } 6008 mTrackballRemainsX += ev.getX(); 6009 mTrackballRemainsY += ev.getY(); 6010 doTrackball(time, ev.getMetaState()); 6011 return true; 6012 } 6013 6014 void moveSelection(float xRate, float yRate) { 6015 if (mNativeClass == 0) 6016 return; 6017 int width = getViewWidth(); 6018 int height = getViewHeight(); 6019 mSelectX += xRate; 6020 mSelectY += yRate; 6021 int maxX = width + mScrollX; 6022 int maxY = height + mScrollY; 6023 mSelectX = Math.min(maxX, Math.max(mScrollX - SELECT_CURSOR_OFFSET 6024 , mSelectX)); 6025 mSelectY = Math.min(maxY, Math.max(mScrollY - SELECT_CURSOR_OFFSET 6026 , mSelectY)); 6027 if (DebugFlags.WEB_VIEW) { 6028 Log.v(LOGTAG, "moveSelection" 6029 + " mSelectX=" + mSelectX 6030 + " mSelectY=" + mSelectY 6031 + " mScrollX=" + mScrollX 6032 + " mScrollY=" + mScrollY 6033 + " xRate=" + xRate 6034 + " yRate=" + yRate 6035 ); 6036 } 6037 nativeMoveSelection(viewToContentX(mSelectX), viewToContentY(mSelectY)); 6038 int scrollX = mSelectX < mScrollX ? -SELECT_CURSOR_OFFSET 6039 : mSelectX > maxX - SELECT_CURSOR_OFFSET ? SELECT_CURSOR_OFFSET 6040 : 0; 6041 int scrollY = mSelectY < mScrollY ? -SELECT_CURSOR_OFFSET 6042 : mSelectY > maxY - SELECT_CURSOR_OFFSET ? SELECT_CURSOR_OFFSET 6043 : 0; 6044 pinScrollBy(scrollX, scrollY, true, 0); 6045 Rect select = new Rect(mSelectX, mSelectY, mSelectX + 1, mSelectY + 1); 6046 requestRectangleOnScreen(select); 6047 invalidate(); 6048 } 6049 6050 private int scaleTrackballX(float xRate, int width) { 6051 int xMove = (int) (xRate / TRACKBALL_SCALE * width); 6052 int nextXMove = xMove; 6053 if (xMove > 0) { 6054 if (xMove > mTrackballXMove) { 6055 xMove -= mTrackballXMove; 6056 } 6057 } else if (xMove < mTrackballXMove) { 6058 xMove -= mTrackballXMove; 6059 } 6060 mTrackballXMove = nextXMove; 6061 return xMove; 6062 } 6063 6064 private int scaleTrackballY(float yRate, int height) { 6065 int yMove = (int) (yRate / TRACKBALL_SCALE * height); 6066 int nextYMove = yMove; 6067 if (yMove > 0) { 6068 if (yMove > mTrackballYMove) { 6069 yMove -= mTrackballYMove; 6070 } 6071 } else if (yMove < mTrackballYMove) { 6072 yMove -= mTrackballYMove; 6073 } 6074 mTrackballYMove = nextYMove; 6075 return yMove; 6076 } 6077 6078 private int keyCodeToSoundsEffect(int keyCode) { 6079 switch(keyCode) { 6080 case KeyEvent.KEYCODE_DPAD_UP: 6081 return SoundEffectConstants.NAVIGATION_UP; 6082 case KeyEvent.KEYCODE_DPAD_RIGHT: 6083 return SoundEffectConstants.NAVIGATION_RIGHT; 6084 case KeyEvent.KEYCODE_DPAD_DOWN: 6085 return SoundEffectConstants.NAVIGATION_DOWN; 6086 case KeyEvent.KEYCODE_DPAD_LEFT: 6087 return SoundEffectConstants.NAVIGATION_LEFT; 6088 } 6089 throw new IllegalArgumentException("keyCode must be one of " + 6090 "{KEYCODE_DPAD_UP, KEYCODE_DPAD_RIGHT, KEYCODE_DPAD_DOWN, " + 6091 "KEYCODE_DPAD_LEFT}."); 6092 } 6093 6094 private void doTrackball(long time, int metaState) { 6095 int elapsed = (int) (mTrackballLastTime - mTrackballFirstTime); 6096 if (elapsed == 0) { 6097 elapsed = TRACKBALL_TIMEOUT; 6098 } 6099 float xRate = mTrackballRemainsX * 1000 / elapsed; 6100 float yRate = mTrackballRemainsY * 1000 / elapsed; 6101 int viewWidth = getViewWidth(); 6102 int viewHeight = getViewHeight(); 6103 if (mSelectingText) { 6104 if (!mDrawSelectionPointer) { 6105 // The last selection was made by touch, disabling drawing the 6106 // selection pointer. Allow the trackball to adjust the 6107 // position of the touch control. 6108 mSelectX = contentToViewX(nativeSelectionX()); 6109 mSelectY = contentToViewY(nativeSelectionY()); 6110 mDrawSelectionPointer = mExtendSelection = true; 6111 nativeSetExtendSelection(); 6112 } 6113 moveSelection(scaleTrackballX(xRate, viewWidth), 6114 scaleTrackballY(yRate, viewHeight)); 6115 mTrackballRemainsX = mTrackballRemainsY = 0; 6116 return; 6117 } 6118 float ax = Math.abs(xRate); 6119 float ay = Math.abs(yRate); 6120 float maxA = Math.max(ax, ay); 6121 if (DebugFlags.WEB_VIEW) { 6122 Log.v(LOGTAG, "doTrackball elapsed=" + elapsed 6123 + " xRate=" + xRate 6124 + " yRate=" + yRate 6125 + " mTrackballRemainsX=" + mTrackballRemainsX 6126 + " mTrackballRemainsY=" + mTrackballRemainsY); 6127 } 6128 int width = mContentWidth - viewWidth; 6129 int height = mContentHeight - viewHeight; 6130 if (width < 0) width = 0; 6131 if (height < 0) height = 0; 6132 ax = Math.abs(mTrackballRemainsX * TRACKBALL_MULTIPLIER); 6133 ay = Math.abs(mTrackballRemainsY * TRACKBALL_MULTIPLIER); 6134 maxA = Math.max(ax, ay); 6135 int count = Math.max(0, (int) maxA); 6136 int oldScrollX = mScrollX; 6137 int oldScrollY = mScrollY; 6138 if (count > 0) { 6139 int selectKeyCode = ax < ay ? mTrackballRemainsY < 0 ? 6140 KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN : 6141 mTrackballRemainsX < 0 ? KeyEvent.KEYCODE_DPAD_LEFT : 6142 KeyEvent.KEYCODE_DPAD_RIGHT; 6143 count = Math.min(count, TRACKBALL_MOVE_COUNT); 6144 if (DebugFlags.WEB_VIEW) { 6145 Log.v(LOGTAG, "doTrackball keyCode=" + selectKeyCode 6146 + " count=" + count 6147 + " mTrackballRemainsX=" + mTrackballRemainsX 6148 + " mTrackballRemainsY=" + mTrackballRemainsY); 6149 } 6150 if (mNativeClass != 0 && nativePageShouldHandleShiftAndArrows()) { 6151 for (int i = 0; i < count; i++) { 6152 letPageHandleNavKey(selectKeyCode, time, true, metaState); 6153 } 6154 letPageHandleNavKey(selectKeyCode, time, false, metaState); 6155 } else if (navHandledKey(selectKeyCode, count, false, time)) { 6156 playSoundEffect(keyCodeToSoundsEffect(selectKeyCode)); 6157 } 6158 mTrackballRemainsX = mTrackballRemainsY = 0; 6159 } 6160 if (count >= TRACKBALL_SCROLL_COUNT) { 6161 int xMove = scaleTrackballX(xRate, width); 6162 int yMove = scaleTrackballY(yRate, height); 6163 if (DebugFlags.WEB_VIEW) { 6164 Log.v(LOGTAG, "doTrackball pinScrollBy" 6165 + " count=" + count 6166 + " xMove=" + xMove + " yMove=" + yMove 6167 + " mScrollX-oldScrollX=" + (mScrollX-oldScrollX) 6168 + " mScrollY-oldScrollY=" + (mScrollY-oldScrollY) 6169 ); 6170 } 6171 if (Math.abs(mScrollX - oldScrollX) > Math.abs(xMove)) { 6172 xMove = 0; 6173 } 6174 if (Math.abs(mScrollY - oldScrollY) > Math.abs(yMove)) { 6175 yMove = 0; 6176 } 6177 if (xMove != 0 || yMove != 0) { 6178 pinScrollBy(xMove, yMove, true, 0); 6179 } 6180 mUserScroll = true; 6181 } 6182 } 6183 6184 /** 6185 * Compute the maximum horizontal scroll position. Used by {@link OverScrollGlow}. 6186 * @return Maximum horizontal scroll position within real content 6187 */ 6188 int computeMaxScrollX() { 6189 return Math.max(computeRealHorizontalScrollRange() - getViewWidth(), 0); 6190 } 6191 6192 /** 6193 * Compute the maximum vertical scroll position. Used by {@link OverScrollGlow}. 6194 * @return Maximum vertical scroll position within real content 6195 */ 6196 int computeMaxScrollY() { 6197 return Math.max(computeRealVerticalScrollRange() + getTitleHeight() 6198 - getViewHeightWithTitle(), 0); 6199 } 6200 6201 boolean updateScrollCoordinates(int x, int y) { 6202 int oldX = mScrollX; 6203 int oldY = mScrollY; 6204 mScrollX = x; 6205 mScrollY = y; 6206 if (oldX != mScrollX || oldY != mScrollY) { 6207 onScrollChanged(mScrollX, mScrollY, oldX, oldY); 6208 return true; 6209 } else { 6210 return false; 6211 } 6212 } 6213 6214 public void flingScroll(int vx, int vy) { 6215 mScroller.fling(mScrollX, mScrollY, vx, vy, 0, computeMaxScrollX(), 0, 6216 computeMaxScrollY(), mOverflingDistance, mOverflingDistance); 6217 invalidate(); 6218 } 6219 6220 private void doFling() { 6221 if (mVelocityTracker == null) { 6222 return; 6223 } 6224 int maxX = computeMaxScrollX(); 6225 int maxY = computeMaxScrollY(); 6226 6227 mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling); 6228 int vx = (int) mVelocityTracker.getXVelocity(); 6229 int vy = (int) mVelocityTracker.getYVelocity(); 6230 6231 int scrollX = mScrollX; 6232 int scrollY = mScrollY; 6233 int overscrollDistance = mOverscrollDistance; 6234 int overflingDistance = mOverflingDistance; 6235 6236 // Use the layer's scroll data if applicable. 6237 if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { 6238 scrollX = mScrollingLayerRect.left; 6239 scrollY = mScrollingLayerRect.top; 6240 maxX = mScrollingLayerRect.right; 6241 maxY = mScrollingLayerRect.bottom; 6242 // No overscrolling for layers. 6243 overscrollDistance = overflingDistance = 0; 6244 } 6245 6246 if (mSnapScrollMode != SNAP_NONE) { 6247 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 6248 vy = 0; 6249 } else { 6250 vx = 0; 6251 } 6252 } 6253 if (true /* EMG release: make our fling more like Maps' */) { 6254 // maps cuts their velocity in half 6255 vx = vx * 3 / 4; 6256 vy = vy * 3 / 4; 6257 } 6258 if ((maxX == 0 && vy == 0) || (maxY == 0 && vx == 0)) { 6259 WebViewCore.resumePriority(); 6260 if (!mSelectingText) { 6261 WebViewCore.resumeUpdatePicture(mWebViewCore); 6262 } 6263 if (mScroller.springBack(scrollX, scrollY, 0, maxX, 0, maxY)) { 6264 invalidate(); 6265 } 6266 return; 6267 } 6268 float currentVelocity = mScroller.getCurrVelocity(); 6269 float velocity = (float) Math.hypot(vx, vy); 6270 if (mLastVelocity > 0 && currentVelocity > 0 && velocity 6271 > mLastVelocity * MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION) { 6272 float deltaR = (float) (Math.abs(Math.atan2(mLastVelY, mLastVelX) 6273 - Math.atan2(vy, vx))); 6274 final float circle = (float) (Math.PI) * 2.0f; 6275 if (deltaR > circle * 0.9f || deltaR < circle * 0.1f) { 6276 vx += currentVelocity * mLastVelX / mLastVelocity; 6277 vy += currentVelocity * mLastVelY / mLastVelocity; 6278 velocity = (float) Math.hypot(vx, vy); 6279 if (DebugFlags.WEB_VIEW) { 6280 Log.v(LOGTAG, "doFling vx= " + vx + " vy=" + vy); 6281 } 6282 } else if (DebugFlags.WEB_VIEW) { 6283 Log.v(LOGTAG, "doFling missed " + deltaR / circle); 6284 } 6285 } else if (DebugFlags.WEB_VIEW) { 6286 Log.v(LOGTAG, "doFling start last=" + mLastVelocity 6287 + " current=" + currentVelocity 6288 + " vx=" + vx + " vy=" + vy 6289 + " maxX=" + maxX + " maxY=" + maxY 6290 + " scrollX=" + scrollX + " scrollY=" + scrollY 6291 + " layer=" + mScrollingLayer); 6292 } 6293 6294 // Allow sloppy flings without overscrolling at the edges. 6295 if ((scrollX == 0 || scrollX == maxX) && Math.abs(vx) < Math.abs(vy)) { 6296 vx = 0; 6297 } 6298 if ((scrollY == 0 || scrollY == maxY) && Math.abs(vy) < Math.abs(vx)) { 6299 vy = 0; 6300 } 6301 6302 if (overscrollDistance < overflingDistance) { 6303 if ((vx > 0 && scrollX == -overscrollDistance) || 6304 (vx < 0 && scrollX == maxX + overscrollDistance)) { 6305 vx = 0; 6306 } 6307 if ((vy > 0 && scrollY == -overscrollDistance) || 6308 (vy < 0 && scrollY == maxY + overscrollDistance)) { 6309 vy = 0; 6310 } 6311 } 6312 6313 mLastVelX = vx; 6314 mLastVelY = vy; 6315 mLastVelocity = velocity; 6316 6317 // no horizontal overscroll if the content just fits 6318 mScroller.fling(scrollX, scrollY, -vx, -vy, 0, maxX, 0, maxY, 6319 maxX == 0 ? 0 : overflingDistance, overflingDistance); 6320 // Duration is calculated based on velocity. With range boundaries and overscroll 6321 // we may not know how long the final animation will take. (Hence the deprecation 6322 // warning on the call below.) It's not a big deal for scroll bars but if webcore 6323 // resumes during this effect we will take a performance hit. See computeScroll; 6324 // we resume webcore there when the animation is finished. 6325 final int time = mScroller.getDuration(); 6326 6327 // Suppress scrollbars for layer scrolling. 6328 if (mTouchMode != TOUCH_DRAG_LAYER_MODE) { 6329 awakenScrollBars(time); 6330 } 6331 6332 invalidate(); 6333 } 6334 6335 /** 6336 * Returns a view containing zoom controls i.e. +/- buttons. The caller is 6337 * in charge of installing this view to the view hierarchy. This view will 6338 * become visible when the user starts scrolling via touch and fade away if 6339 * the user does not interact with it. 6340 * <p/> 6341 * API version 3 introduces a built-in zoom mechanism that is shown 6342 * automatically by the MapView. This is the preferred approach for 6343 * showing the zoom UI. 6344 * 6345 * @deprecated The built-in zoom mechanism is preferred, see 6346 * {@link WebSettings#setBuiltInZoomControls(boolean)}. 6347 */ 6348 @Deprecated 6349 public View getZoomControls() { 6350 if (!getSettings().supportZoom()) { 6351 Log.w(LOGTAG, "This WebView doesn't support zoom."); 6352 return null; 6353 } 6354 return mZoomManager.getExternalZoomPicker(); 6355 } 6356 6357 void dismissZoomControl() { 6358 mZoomManager.dismissZoomPicker(); 6359 } 6360 6361 float getDefaultZoomScale() { 6362 return mZoomManager.getDefaultScale(); 6363 } 6364 6365 /** 6366 * @return TRUE if the WebView can be zoomed in. 6367 */ 6368 public boolean canZoomIn() { 6369 return mZoomManager.canZoomIn(); 6370 } 6371 6372 /** 6373 * @return TRUE if the WebView can be zoomed out. 6374 */ 6375 public boolean canZoomOut() { 6376 return mZoomManager.canZoomOut(); 6377 } 6378 6379 /** 6380 * Perform zoom in in the webview 6381 * @return TRUE if zoom in succeeds. FALSE if no zoom changes. 6382 */ 6383 public boolean zoomIn() { 6384 return mZoomManager.zoomIn(); 6385 } 6386 6387 /** 6388 * Perform zoom out in the webview 6389 * @return TRUE if zoom out succeeds. FALSE if no zoom changes. 6390 */ 6391 public boolean zoomOut() { 6392 return mZoomManager.zoomOut(); 6393 } 6394 6395 private void updateSelection() { 6396 if (mNativeClass == 0) { 6397 return; 6398 } 6399 // mLastTouchX and mLastTouchY are the point in the current viewport 6400 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 6401 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 6402 Rect rect = new Rect(contentX - mNavSlop, contentY - mNavSlop, 6403 contentX + mNavSlop, contentY + mNavSlop); 6404 nativeSelectBestAt(rect); 6405 mInitialHitTestResult = hitTestResult(null); 6406 } 6407 6408 /** 6409 * Scroll the focused text field/area to match the WebTextView 6410 * @param xPercent New x position of the WebTextView from 0 to 1. 6411 * @param y New y position of the WebTextView in view coordinates 6412 */ 6413 /*package*/ void scrollFocusedTextInput(float xPercent, int y) { 6414 if (!inEditingMode() || mWebViewCore == null) { 6415 return; 6416 } 6417 mWebViewCore.sendMessage(EventHub.SCROLL_TEXT_INPUT, 6418 // Since this position is relative to the top of the text input 6419 // field, we do not need to take the title bar's height into 6420 // consideration. 6421 viewToContentDimension(y), 6422 new Float(xPercent)); 6423 } 6424 6425 /** 6426 * Set our starting point and time for a drag from the WebTextView. 6427 */ 6428 /*package*/ void initiateTextFieldDrag(float x, float y, long eventTime) { 6429 if (!inEditingMode()) { 6430 return; 6431 } 6432 mLastTouchX = x + (float) (mWebTextView.getLeft() - mScrollX); 6433 mLastTouchY = y + (float) (mWebTextView.getTop() - mScrollY); 6434 mLastTouchTime = eventTime; 6435 if (!mScroller.isFinished()) { 6436 abortAnimation(); 6437 mPrivateHandler.removeMessages(RESUME_WEBCORE_PRIORITY); 6438 } 6439 mSnapScrollMode = SNAP_NONE; 6440 mVelocityTracker = VelocityTracker.obtain(); 6441 mTouchMode = TOUCH_DRAG_START_MODE; 6442 } 6443 6444 /** 6445 * Given a motion event from the WebTextView, set its location to our 6446 * coordinates, and handle the event. 6447 */ 6448 /*package*/ boolean textFieldDrag(MotionEvent event) { 6449 if (!inEditingMode()) { 6450 return false; 6451 } 6452 mDragFromTextInput = true; 6453 event.offsetLocation((float) (mWebTextView.getLeft() - mScrollX), 6454 (float) (mWebTextView.getTop() - mScrollY)); 6455 boolean result = onTouchEvent(event); 6456 mDragFromTextInput = false; 6457 return result; 6458 } 6459 6460 /** 6461 * Due a touch up from a WebTextView. This will be handled by webkit to 6462 * change the selection. 6463 * @param event MotionEvent in the WebTextView's coordinates. 6464 */ 6465 /*package*/ void touchUpOnTextField(MotionEvent event) { 6466 if (!inEditingMode()) { 6467 return; 6468 } 6469 int x = viewToContentX((int) event.getX() + mWebTextView.getLeft()); 6470 int y = viewToContentY((int) event.getY() + mWebTextView.getTop()); 6471 nativeMotionUp(x, y, mNavSlop); 6472 } 6473 6474 /** 6475 * Called when pressing the center key or trackball on a textfield. 6476 */ 6477 /*package*/ void centerKeyPressOnTextField() { 6478 mWebViewCore.sendMessage(EventHub.CLICK, nativeCursorFramePointer(), 6479 nativeCursorNodePointer()); 6480 } 6481 6482 private void doShortPress() { 6483 if (mNativeClass == 0) { 6484 return; 6485 } 6486 if (mPreventDefault == PREVENT_DEFAULT_YES) { 6487 return; 6488 } 6489 mTouchMode = TOUCH_DONE_MODE; 6490 switchOutDrawHistory(); 6491 // mLastTouchX and mLastTouchY are the point in the current viewport 6492 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 6493 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 6494 if (getSettings().supportTouchOnly()) { 6495 removeTouchHighlight(false); 6496 WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData(); 6497 // use "0" as generation id to inform WebKit to use the same x/y as 6498 // it used when processing GET_TOUCH_HIGHLIGHT_RECTS 6499 touchUpData.mMoveGeneration = 0; 6500 mWebViewCore.sendMessage(EventHub.TOUCH_UP, touchUpData); 6501 } else if (nativePointInNavCache(contentX, contentY, mNavSlop)) { 6502 WebViewCore.MotionUpData motionUpData = new WebViewCore 6503 .MotionUpData(); 6504 motionUpData.mFrame = nativeCacheHitFramePointer(); 6505 motionUpData.mNode = nativeCacheHitNodePointer(); 6506 motionUpData.mBounds = nativeCacheHitNodeBounds(); 6507 motionUpData.mX = contentX; 6508 motionUpData.mY = contentY; 6509 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.VALID_NODE_BOUNDS, 6510 motionUpData); 6511 } else { 6512 doMotionUp(contentX, contentY); 6513 } 6514 } 6515 6516 private void doMotionUp(int contentX, int contentY) { 6517 if (nativeMotionUp(contentX, contentY, mNavSlop) && mLogEvent) { 6518 EventLog.writeEvent(EventLogTags.BROWSER_SNAP_CENTER); 6519 } 6520 if (nativeHasCursorNode() && !nativeCursorIsTextInput()) { 6521 playSoundEffect(SoundEffectConstants.CLICK); 6522 } 6523 } 6524 6525 /* 6526 * Return true if the view (Plugin) is fully visible and maximized inside 6527 * the WebView. 6528 */ 6529 boolean isPluginFitOnScreen(ViewManager.ChildView view) { 6530 final int viewWidth = getViewWidth(); 6531 final int viewHeight = getViewHeightWithTitle(); 6532 float scale = Math.min((float) viewWidth / view.width, (float) viewHeight / view.height); 6533 scale = mZoomManager.computeScaleWithLimits(scale); 6534 return !mZoomManager.willScaleTriggerZoom(scale) 6535 && contentToViewX(view.x) >= mScrollX 6536 && contentToViewX(view.x + view.width) <= mScrollX + viewWidth 6537 && contentToViewY(view.y) >= mScrollY 6538 && contentToViewY(view.y + view.height) <= mScrollY + viewHeight; 6539 } 6540 6541 /* 6542 * Maximize and center the rectangle, specified in the document coordinate 6543 * space, inside the WebView. If the zoom doesn't need to be changed, do an 6544 * animated scroll to center it. If the zoom needs to be changed, find the 6545 * zoom center and do a smooth zoom transition. 6546 */ 6547 void centerFitRect(int docX, int docY, int docWidth, int docHeight) { 6548 int viewWidth = getViewWidth(); 6549 int viewHeight = getViewHeightWithTitle(); 6550 float scale = Math.min((float) viewWidth / docWidth, (float) viewHeight 6551 / docHeight); 6552 scale = mZoomManager.computeScaleWithLimits(scale); 6553 if (!mZoomManager.willScaleTriggerZoom(scale)) { 6554 pinScrollTo(contentToViewX(docX + docWidth / 2) - viewWidth / 2, 6555 contentToViewY(docY + docHeight / 2) - viewHeight / 2, 6556 true, 0); 6557 } else { 6558 float actualScale = mZoomManager.getScale(); 6559 float oldScreenX = docX * actualScale - mScrollX; 6560 float rectViewX = docX * scale; 6561 float rectViewWidth = docWidth * scale; 6562 float newMaxWidth = mContentWidth * scale; 6563 float newScreenX = (viewWidth - rectViewWidth) / 2; 6564 // pin the newX to the WebView 6565 if (newScreenX > rectViewX) { 6566 newScreenX = rectViewX; 6567 } else if (newScreenX > (newMaxWidth - rectViewX - rectViewWidth)) { 6568 newScreenX = viewWidth - (newMaxWidth - rectViewX); 6569 } 6570 float zoomCenterX = (oldScreenX * scale - newScreenX * actualScale) 6571 / (scale - actualScale); 6572 float oldScreenY = docY * actualScale + getTitleHeight() 6573 - mScrollY; 6574 float rectViewY = docY * scale + getTitleHeight(); 6575 float rectViewHeight = docHeight * scale; 6576 float newMaxHeight = mContentHeight * scale + getTitleHeight(); 6577 float newScreenY = (viewHeight - rectViewHeight) / 2; 6578 // pin the newY to the WebView 6579 if (newScreenY > rectViewY) { 6580 newScreenY = rectViewY; 6581 } else if (newScreenY > (newMaxHeight - rectViewY - rectViewHeight)) { 6582 newScreenY = viewHeight - (newMaxHeight - rectViewY); 6583 } 6584 float zoomCenterY = (oldScreenY * scale - newScreenY * actualScale) 6585 / (scale - actualScale); 6586 mZoomManager.setZoomCenter(zoomCenterX, zoomCenterY); 6587 mZoomManager.startZoomAnimation(scale, false); 6588 } 6589 } 6590 6591 // Called by JNI to handle a touch on a node representing an email address, 6592 // address, or phone number 6593 private void overrideLoading(String url) { 6594 mCallbackProxy.uiOverrideUrlLoading(url); 6595 } 6596 6597 @Override 6598 public boolean requestFocus(int direction, Rect previouslyFocusedRect) { 6599 // FIXME: If a subwindow is showing find, and the user touches the 6600 // background window, it can steal focus. 6601 if (mFindIsUp) return false; 6602 boolean result = false; 6603 if (inEditingMode()) { 6604 result = mWebTextView.requestFocus(direction, 6605 previouslyFocusedRect); 6606 } else { 6607 result = super.requestFocus(direction, previouslyFocusedRect); 6608 if (mWebViewCore.getSettings().getNeedInitialFocus()) { 6609 // For cases such as GMail, where we gain focus from a direction, 6610 // we want to move to the first available link. 6611 // FIXME: If there are no visible links, we may not want to 6612 int fakeKeyDirection = 0; 6613 switch(direction) { 6614 case View.FOCUS_UP: 6615 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_UP; 6616 break; 6617 case View.FOCUS_DOWN: 6618 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_DOWN; 6619 break; 6620 case View.FOCUS_LEFT: 6621 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_LEFT; 6622 break; 6623 case View.FOCUS_RIGHT: 6624 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_RIGHT; 6625 break; 6626 default: 6627 return result; 6628 } 6629 if (mNativeClass != 0 && !nativeHasCursorNode()) { 6630 navHandledKey(fakeKeyDirection, 1, true, 0); 6631 } 6632 } 6633 } 6634 return result; 6635 } 6636 6637 @Override 6638 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6639 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 6640 6641 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6642 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6643 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6644 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6645 6646 int measuredHeight = heightSize; 6647 int measuredWidth = widthSize; 6648 6649 // Grab the content size from WebViewCore. 6650 int contentHeight = contentToViewDimension(mContentHeight); 6651 int contentWidth = contentToViewDimension(mContentWidth); 6652 6653// Log.d(LOGTAG, "------- measure " + heightMode); 6654 6655 if (heightMode != MeasureSpec.EXACTLY) { 6656 mHeightCanMeasure = true; 6657 measuredHeight = contentHeight; 6658 if (heightMode == MeasureSpec.AT_MOST) { 6659 // If we are larger than the AT_MOST height, then our height can 6660 // no longer be measured and we should scroll internally. 6661 if (measuredHeight > heightSize) { 6662 measuredHeight = heightSize; 6663 mHeightCanMeasure = false; 6664 } else if (measuredHeight < heightSize) { 6665 measuredHeight |= MEASURED_STATE_TOO_SMALL; 6666 } 6667 } 6668 } else { 6669 mHeightCanMeasure = false; 6670 } 6671 if (mNativeClass != 0) { 6672 nativeSetHeightCanMeasure(mHeightCanMeasure); 6673 } 6674 // For the width, always use the given size unless unspecified. 6675 if (widthMode == MeasureSpec.UNSPECIFIED) { 6676 mWidthCanMeasure = true; 6677 measuredWidth = contentWidth; 6678 } else { 6679 if (measuredWidth < contentWidth) { 6680 measuredWidth |= MEASURED_STATE_TOO_SMALL; 6681 } 6682 mWidthCanMeasure = false; 6683 } 6684 6685 synchronized (this) { 6686 setMeasuredDimension(measuredWidth, measuredHeight); 6687 } 6688 } 6689 6690 @Override 6691 public boolean requestChildRectangleOnScreen(View child, 6692 Rect rect, 6693 boolean immediate) { 6694 if (mNativeClass == 0) { 6695 return false; 6696 } 6697 // don't scroll while in zoom animation. When it is done, we will adjust 6698 // the necessary components (e.g., WebTextView if it is in editing mode) 6699 if (mZoomManager.isFixedLengthAnimationInProgress()) { 6700 return false; 6701 } 6702 6703 rect.offset(child.getLeft() - child.getScrollX(), 6704 child.getTop() - child.getScrollY()); 6705 6706 Rect content = new Rect(viewToContentX(mScrollX), 6707 viewToContentY(mScrollY), 6708 viewToContentX(mScrollX + getWidth() 6709 - getVerticalScrollbarWidth()), 6710 viewToContentY(mScrollY + getViewHeightWithTitle())); 6711 content = nativeSubtractLayers(content); 6712 int screenTop = contentToViewY(content.top); 6713 int screenBottom = contentToViewY(content.bottom); 6714 int height = screenBottom - screenTop; 6715 int scrollYDelta = 0; 6716 6717 if (rect.bottom > screenBottom) { 6718 int oneThirdOfScreenHeight = height / 3; 6719 if (rect.height() > 2 * oneThirdOfScreenHeight) { 6720 // If the rectangle is too tall to fit in the bottom two thirds 6721 // of the screen, place it at the top. 6722 scrollYDelta = rect.top - screenTop; 6723 } else { 6724 // If the rectangle will still fit on screen, we want its 6725 // top to be in the top third of the screen. 6726 scrollYDelta = rect.top - (screenTop + oneThirdOfScreenHeight); 6727 } 6728 } else if (rect.top < screenTop) { 6729 scrollYDelta = rect.top - screenTop; 6730 } 6731 6732 int screenLeft = contentToViewX(content.left); 6733 int screenRight = contentToViewX(content.right); 6734 int width = screenRight - screenLeft; 6735 int scrollXDelta = 0; 6736 6737 if (rect.right > screenRight && rect.left > screenLeft) { 6738 if (rect.width() > width) { 6739 scrollXDelta += (rect.left - screenLeft); 6740 } else { 6741 scrollXDelta += (rect.right - screenRight); 6742 } 6743 } else if (rect.left < screenLeft) { 6744 scrollXDelta -= (screenLeft - rect.left); 6745 } 6746 6747 if ((scrollYDelta | scrollXDelta) != 0) { 6748 return pinScrollBy(scrollXDelta, scrollYDelta, !immediate, 0); 6749 } 6750 6751 return false; 6752 } 6753 6754 /* package */ void replaceTextfieldText(int oldStart, int oldEnd, 6755 String replace, int newStart, int newEnd) { 6756 WebViewCore.ReplaceTextData arg = new WebViewCore.ReplaceTextData(); 6757 arg.mReplace = replace; 6758 arg.mNewStart = newStart; 6759 arg.mNewEnd = newEnd; 6760 mTextGeneration++; 6761 arg.mTextGeneration = mTextGeneration; 6762 mWebViewCore.sendMessage(EventHub.REPLACE_TEXT, oldStart, oldEnd, arg); 6763 } 6764 6765 /* package */ void passToJavaScript(String currentText, KeyEvent event) { 6766 WebViewCore.JSKeyData arg = new WebViewCore.JSKeyData(); 6767 arg.mEvent = event; 6768 arg.mCurrentText = currentText; 6769 // Increase our text generation number, and pass it to webcore thread 6770 mTextGeneration++; 6771 mWebViewCore.sendMessage(EventHub.PASS_TO_JS, mTextGeneration, 0, arg); 6772 // WebKit's document state is not saved until about to leave the page. 6773 // To make sure the host application, like Browser, has the up to date 6774 // document state when it goes to background, we force to save the 6775 // document state. 6776 mWebViewCore.removeMessages(EventHub.SAVE_DOCUMENT_STATE); 6777 mWebViewCore.sendMessageDelayed(EventHub.SAVE_DOCUMENT_STATE, 6778 cursorData(), 1000); 6779 } 6780 6781 /* package */ synchronized WebViewCore getWebViewCore() { 6782 return mWebViewCore; 6783 } 6784 6785 //------------------------------------------------------------------------- 6786 // Methods can be called from a separate thread, like WebViewCore 6787 // If it needs to call the View system, it has to send message. 6788 //------------------------------------------------------------------------- 6789 6790 /** 6791 * General handler to receive message coming from webkit thread 6792 */ 6793 class PrivateHandler extends Handler { 6794 @Override 6795 public void handleMessage(Message msg) { 6796 // exclude INVAL_RECT_MSG_ID since it is frequently output 6797 if (DebugFlags.WEB_VIEW && msg.what != INVAL_RECT_MSG_ID) { 6798 if (msg.what >= FIRST_PRIVATE_MSG_ID 6799 && msg.what <= LAST_PRIVATE_MSG_ID) { 6800 Log.v(LOGTAG, HandlerPrivateDebugString[msg.what 6801 - FIRST_PRIVATE_MSG_ID]); 6802 } else if (msg.what >= FIRST_PACKAGE_MSG_ID 6803 && msg.what <= LAST_PACKAGE_MSG_ID) { 6804 Log.v(LOGTAG, HandlerPackageDebugString[msg.what 6805 - FIRST_PACKAGE_MSG_ID]); 6806 } else { 6807 Log.v(LOGTAG, Integer.toString(msg.what)); 6808 } 6809 } 6810 if (mWebViewCore == null) { 6811 // after WebView's destroy() is called, skip handling messages. 6812 return; 6813 } 6814 switch (msg.what) { 6815 case REMEMBER_PASSWORD: { 6816 mDatabase.setUsernamePassword( 6817 msg.getData().getString("host"), 6818 msg.getData().getString("username"), 6819 msg.getData().getString("password")); 6820 ((Message) msg.obj).sendToTarget(); 6821 break; 6822 } 6823 case NEVER_REMEMBER_PASSWORD: { 6824 mDatabase.setUsernamePassword( 6825 msg.getData().getString("host"), null, null); 6826 ((Message) msg.obj).sendToTarget(); 6827 break; 6828 } 6829 case PREVENT_DEFAULT_TIMEOUT: { 6830 // if timeout happens, cancel it so that it won't block UI 6831 // to continue handling touch events 6832 if ((msg.arg1 == MotionEvent.ACTION_DOWN 6833 && mPreventDefault == PREVENT_DEFAULT_MAYBE_YES) 6834 || (msg.arg1 == MotionEvent.ACTION_MOVE 6835 && mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN)) { 6836 cancelWebCoreTouchEvent( 6837 viewToContentX((int) mLastTouchX + mScrollX), 6838 viewToContentY((int) mLastTouchY + mScrollY), 6839 true); 6840 } 6841 break; 6842 } 6843 case SCROLL_SELECT_TEXT: { 6844 if (mAutoScrollX == 0 && mAutoScrollY == 0) { 6845 mSentAutoScrollMessage = false; 6846 break; 6847 } 6848 pinScrollBy(mAutoScrollX, mAutoScrollY, true, 0); 6849 sendEmptyMessageDelayed( 6850 SCROLL_SELECT_TEXT, SELECT_SCROLL_INTERVAL); 6851 break; 6852 } 6853 case SWITCH_TO_SHORTPRESS: { 6854 mInitialHitTestResult = null; // set by updateSelection() 6855 if (mTouchMode == TOUCH_INIT_MODE) { 6856 if (!getSettings().supportTouchOnly() 6857 && mPreventDefault != PREVENT_DEFAULT_YES) { 6858 mTouchMode = TOUCH_SHORTPRESS_START_MODE; 6859 updateSelection(); 6860 } else { 6861 // set to TOUCH_SHORTPRESS_MODE so that it won't 6862 // trigger double tap any more 6863 mTouchMode = TOUCH_SHORTPRESS_MODE; 6864 } 6865 } else if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 6866 mTouchMode = TOUCH_DONE_MODE; 6867 } 6868 break; 6869 } 6870 case SWITCH_TO_LONGPRESS: { 6871 if (getSettings().supportTouchOnly()) { 6872 removeTouchHighlight(false); 6873 } 6874 if (inFullScreenMode() || mDeferTouchProcess) { 6875 TouchEventData ted = new TouchEventData(); 6876 ted.mAction = WebViewCore.ACTION_LONGPRESS; 6877 ted.mPoints = new Point[1]; 6878 ted.mPoints[0] = new Point(viewToContentX((int) mLastTouchX + mScrollX), 6879 viewToContentY((int) mLastTouchY + mScrollY)); 6880 // metaState for long press is tricky. Should it be the 6881 // state when the press started or when the press was 6882 // released? Or some intermediary key state? For 6883 // simplicity for now, we don't set it. 6884 ted.mMetaState = 0; 6885 ted.mReprocess = mDeferTouchProcess; 6886 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 6887 } else if (mPreventDefault != PREVENT_DEFAULT_YES) { 6888 mTouchMode = TOUCH_DONE_MODE; 6889 performLongClick(); 6890 } 6891 break; 6892 } 6893 case RELEASE_SINGLE_TAP: { 6894 doShortPress(); 6895 break; 6896 } 6897 case SCROLL_BY_MSG_ID: 6898 setContentScrollBy(msg.arg1, msg.arg2, (Boolean) msg.obj); 6899 break; 6900 case SYNC_SCROLL_TO_MSG_ID: 6901 if (mUserScroll) { 6902 // if user has scrolled explicitly, don't sync the 6903 // scroll position any more 6904 mUserScroll = false; 6905 break; 6906 } 6907 setContentScrollTo(msg.arg1, msg.arg2); 6908 break; 6909 case SCROLL_TO_MSG_ID: 6910 if (setContentScrollTo(msg.arg1, msg.arg2)) { 6911 // if we can't scroll to the exact position due to pin, 6912 // send a message to WebCore to re-scroll when we get a 6913 // new picture 6914 mUserScroll = false; 6915 mWebViewCore.sendMessage(EventHub.SYNC_SCROLL, 6916 msg.arg1, msg.arg2); 6917 } 6918 break; 6919 case SPAWN_SCROLL_TO_MSG_ID: 6920 spawnContentScrollTo(msg.arg1, msg.arg2); 6921 break; 6922 case UPDATE_ZOOM_RANGE: { 6923 WebViewCore.ViewState viewState = (WebViewCore.ViewState) msg.obj; 6924 // mScrollX contains the new minPrefWidth 6925 mZoomManager.updateZoomRange(viewState, getViewWidth(), viewState.mScrollX); 6926 break; 6927 } 6928 case REPLACE_BASE_CONTENT: { 6929 nativeReplaceBaseContent(msg.arg1); 6930 break; 6931 } 6932 case NEW_PICTURE_MSG_ID: { 6933 // called for new content 6934 mUserScroll = false; 6935 final WebViewCore.DrawData draw = (WebViewCore.DrawData) msg.obj; 6936 setBaseLayer(draw.mBaseLayer, draw.mInvalRegion.getBounds()); 6937 final Point viewSize = draw.mViewSize; 6938 WebViewCore.ViewState viewState = draw.mViewState; 6939 boolean isPictureAfterFirstLayout = viewState != null; 6940 if (isPictureAfterFirstLayout) { 6941 // Reset the last sent data here since dealing with new page. 6942 mLastWidthSent = 0; 6943 mZoomManager.onFirstLayout(draw); 6944 if (!mDrawHistory) { 6945 setContentScrollTo(viewState.mScrollX, viewState.mScrollY); 6946 // As we are on a new page, remove the WebTextView. This 6947 // is necessary for page loads driven by webkit, and in 6948 // particular when the user was on a password field, so 6949 // the WebTextView was visible. 6950 clearTextEntry(); 6951 } 6952 } 6953 6954 // We update the layout (i.e. request a layout from the 6955 // view system) if the last view size that we sent to 6956 // WebCore matches the view size of the picture we just 6957 // received in the fixed dimension. 6958 final boolean updateLayout = viewSize.x == mLastWidthSent 6959 && viewSize.y == mLastHeightSent; 6960 recordNewContentSize(draw.mContentSize.x, 6961 draw.mContentSize.y, updateLayout); 6962 if (DebugFlags.WEB_VIEW) { 6963 Rect b = draw.mInvalRegion.getBounds(); 6964 Log.v(LOGTAG, "NEW_PICTURE_MSG_ID {" + 6965 b.left+","+b.top+","+b.right+","+b.bottom+"}"); 6966 } 6967 invalidateContentRect(draw.mInvalRegion.getBounds()); 6968 6969 if (mPictureListener != null) { 6970 mPictureListener.onNewPicture(WebView.this, capturePicture()); 6971 } 6972 6973 // update the zoom information based on the new picture 6974 mZoomManager.onNewPicture(draw); 6975 6976 if (draw.mFocusSizeChanged && inEditingMode()) { 6977 mFocusSizeChanged = true; 6978 } 6979 if (isPictureAfterFirstLayout) { 6980 mViewManager.postReadyToDrawAll(); 6981 } 6982 break; 6983 } 6984 case WEBCORE_INITIALIZED_MSG_ID: 6985 // nativeCreate sets mNativeClass to a non-zero value 6986 nativeCreate(msg.arg1); 6987 break; 6988 case UPDATE_TEXTFIELD_TEXT_MSG_ID: 6989 // Make sure that the textfield is currently focused 6990 // and representing the same node as the pointer. 6991 if (inEditingMode() && 6992 mWebTextView.isSameTextField(msg.arg1)) { 6993 if (msg.getData().getBoolean("password")) { 6994 Spannable text = (Spannable) mWebTextView.getText(); 6995 int start = Selection.getSelectionStart(text); 6996 int end = Selection.getSelectionEnd(text); 6997 mWebTextView.setInPassword(true); 6998 // Restore the selection, which may have been 6999 // ruined by setInPassword. 7000 Spannable pword = 7001 (Spannable) mWebTextView.getText(); 7002 Selection.setSelection(pword, start, end); 7003 // If the text entry has created more events, ignore 7004 // this one. 7005 } else if (msg.arg2 == mTextGeneration) { 7006 String text = (String) msg.obj; 7007 if (null == text) { 7008 text = ""; 7009 } 7010 mWebTextView.setTextAndKeepSelection(text); 7011 } 7012 } 7013 break; 7014 case REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID: 7015 displaySoftKeyboard(true); 7016 // fall through to UPDATE_TEXT_SELECTION_MSG_ID 7017 case UPDATE_TEXT_SELECTION_MSG_ID: 7018 updateTextSelectionFromMessage(msg.arg1, msg.arg2, 7019 (WebViewCore.TextSelectionData) msg.obj); 7020 break; 7021 case FORM_DID_BLUR: 7022 if (inEditingMode() 7023 && mWebTextView.isSameTextField(msg.arg1)) { 7024 hideSoftKeyboard(); 7025 } 7026 break; 7027 case RETURN_LABEL: 7028 if (inEditingMode() 7029 && mWebTextView.isSameTextField(msg.arg1)) { 7030 mWebTextView.setHint((String) msg.obj); 7031 InputMethodManager imm 7032 = InputMethodManager.peekInstance(); 7033 // The hint is propagated to the IME in 7034 // onCreateInputConnection. If the IME is already 7035 // active, restart it so that its hint text is updated. 7036 if (imm != null && imm.isActive(mWebTextView)) { 7037 imm.restartInput(mWebTextView); 7038 } 7039 } 7040 break; 7041 case UNHANDLED_NAV_KEY: 7042 navHandledKey(msg.arg1, 1, false, 0); 7043 break; 7044 case UPDATE_TEXT_ENTRY_MSG_ID: 7045 // this is sent after finishing resize in WebViewCore. Make 7046 // sure the text edit box is still on the screen. 7047 if (inEditingMode() && nativeCursorIsTextInput()) { 7048 mWebTextView.bringIntoView(); 7049 rebuildWebTextView(); 7050 } 7051 break; 7052 case CLEAR_TEXT_ENTRY: 7053 clearTextEntry(); 7054 break; 7055 case INVAL_RECT_MSG_ID: { 7056 Rect r = (Rect)msg.obj; 7057 if (r == null) { 7058 invalidate(); 7059 } else { 7060 // we need to scale r from content into view coords, 7061 // which viewInvalidate() does for us 7062 viewInvalidate(r.left, r.top, r.right, r.bottom); 7063 } 7064 break; 7065 } 7066 case REQUEST_FORM_DATA: 7067 AutoCompleteAdapter adapter = (AutoCompleteAdapter) msg.obj; 7068 if (mWebTextView.isSameTextField(msg.arg1)) { 7069 mWebTextView.setAdapterCustom(adapter); 7070 } 7071 break; 7072 case RESUME_WEBCORE_PRIORITY: 7073 WebViewCore.resumePriority(); 7074 WebViewCore.resumeUpdatePicture(mWebViewCore); 7075 break; 7076 7077 case LONG_PRESS_CENTER: 7078 // as this is shared by keydown and trackballdown, reset all 7079 // the states 7080 mGotCenterDown = false; 7081 mTrackballDown = false; 7082 performLongClick(); 7083 break; 7084 7085 case WEBCORE_NEED_TOUCH_EVENTS: 7086 mForwardTouchEvents = (msg.arg1 != 0); 7087 break; 7088 7089 case PREVENT_TOUCH_ID: 7090 if (inFullScreenMode()) { 7091 break; 7092 } 7093 if (msg.obj == null) { 7094 if (msg.arg1 == MotionEvent.ACTION_DOWN 7095 && mPreventDefault == PREVENT_DEFAULT_MAYBE_YES) { 7096 // if prevent default is called from WebCore, UI 7097 // will not handle the rest of the touch events any 7098 // more. 7099 mPreventDefault = msg.arg2 == 1 ? PREVENT_DEFAULT_YES 7100 : PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN; 7101 } else if (msg.arg1 == MotionEvent.ACTION_MOVE 7102 && mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN) { 7103 // the return for the first ACTION_MOVE will decide 7104 // whether UI will handle touch or not. Currently no 7105 // support for alternating prevent default 7106 mPreventDefault = msg.arg2 == 1 ? PREVENT_DEFAULT_YES 7107 : PREVENT_DEFAULT_NO; 7108 } 7109 if (mPreventDefault == PREVENT_DEFAULT_YES) { 7110 mTouchHighlightRegion.setEmpty(); 7111 } 7112 } else if (msg.arg2 == 0) { 7113 // prevent default is not called in WebCore, so the 7114 // message needs to be reprocessed in UI 7115 TouchEventData ted = (TouchEventData) msg.obj; 7116 switch (ted.mAction) { 7117 case MotionEvent.ACTION_DOWN: 7118 mLastDeferTouchX = contentToViewX(ted.mPoints[0].x) 7119 - mScrollX; 7120 mLastDeferTouchY = contentToViewY(ted.mPoints[0].y) 7121 - mScrollY; 7122 mDeferTouchMode = TOUCH_INIT_MODE; 7123 break; 7124 case MotionEvent.ACTION_MOVE: { 7125 // no snapping in defer process 7126 int x = contentToViewX(ted.mPoints[0].x) - mScrollX; 7127 int y = contentToViewY(ted.mPoints[0].y) - mScrollY; 7128 if (mDeferTouchMode != TOUCH_DRAG_MODE) { 7129 mDeferTouchMode = TOUCH_DRAG_MODE; 7130 mLastDeferTouchX = x; 7131 mLastDeferTouchY = y; 7132 startScrollingLayer(x, y); 7133 startDrag(); 7134 } 7135 int deltaX = pinLocX((int) (mScrollX 7136 + mLastDeferTouchX - x)) 7137 - mScrollX; 7138 int deltaY = pinLocY((int) (mScrollY 7139 + mLastDeferTouchY - y)) 7140 - mScrollY; 7141 doDrag(deltaX, deltaY); 7142 if (deltaX != 0) mLastDeferTouchX = x; 7143 if (deltaY != 0) mLastDeferTouchY = y; 7144 break; 7145 } 7146 case MotionEvent.ACTION_UP: 7147 case MotionEvent.ACTION_CANCEL: 7148 if (mDeferTouchMode == TOUCH_DRAG_MODE) { 7149 // no fling in defer process 7150 mScroller.springBack(mScrollX, mScrollY, 0, 7151 computeMaxScrollX(), 0, 7152 computeMaxScrollY()); 7153 invalidate(); 7154 WebViewCore.resumePriority(); 7155 WebViewCore.resumeUpdatePicture(mWebViewCore); 7156 } 7157 mDeferTouchMode = TOUCH_DONE_MODE; 7158 break; 7159 case WebViewCore.ACTION_DOUBLETAP: 7160 // doDoubleTap() needs mLastTouchX/Y as anchor 7161 mLastTouchX = contentToViewX(ted.mPoints[0].x) - mScrollX; 7162 mLastTouchY = contentToViewY(ted.mPoints[0].y) - mScrollY; 7163 mZoomManager.handleDoubleTap(mLastTouchX, mLastTouchY); 7164 mDeferTouchMode = TOUCH_DONE_MODE; 7165 break; 7166 case WebViewCore.ACTION_LONGPRESS: 7167 HitTestResult hitTest = getHitTestResult(); 7168 if (hitTest != null && hitTest.mType 7169 != HitTestResult.UNKNOWN_TYPE) { 7170 performLongClick(); 7171 } 7172 mDeferTouchMode = TOUCH_DONE_MODE; 7173 break; 7174 } 7175 } 7176 break; 7177 7178 case REQUEST_KEYBOARD: 7179 if (msg.arg1 == 0) { 7180 hideSoftKeyboard(); 7181 } else { 7182 displaySoftKeyboard(false); 7183 } 7184 break; 7185 7186 case FIND_AGAIN: 7187 // Ignore if find has been dismissed. 7188 if (mFindIsUp && mFindCallback != null) { 7189 mFindCallback.findAll(); 7190 } 7191 break; 7192 7193 case DRAG_HELD_MOTIONLESS: 7194 mHeldMotionless = MOTIONLESS_TRUE; 7195 invalidate(); 7196 // fall through to keep scrollbars awake 7197 7198 case AWAKEN_SCROLL_BARS: 7199 if (mTouchMode == TOUCH_DRAG_MODE 7200 && mHeldMotionless == MOTIONLESS_TRUE) { 7201 awakenScrollBars(ViewConfiguration 7202 .getScrollDefaultDelay(), false); 7203 mPrivateHandler.sendMessageDelayed(mPrivateHandler 7204 .obtainMessage(AWAKEN_SCROLL_BARS), 7205 ViewConfiguration.getScrollDefaultDelay()); 7206 } 7207 break; 7208 7209 case DO_MOTION_UP: 7210 doMotionUp(msg.arg1, msg.arg2); 7211 break; 7212 7213 case SHOW_FULLSCREEN: { 7214 View view = (View) msg.obj; 7215 int npp = msg.arg1; 7216 7217 if (inFullScreenMode()) { 7218 Log.w(LOGTAG, "Should not have another full screen."); 7219 dismissFullScreenMode(); 7220 } 7221 mFullScreenHolder = new PluginFullScreenHolder(WebView.this, npp); 7222 mFullScreenHolder.setContentView(view); 7223 mFullScreenHolder.setCancelable(false); 7224 mFullScreenHolder.setCanceledOnTouchOutside(false); 7225 mFullScreenHolder.show(); 7226 7227 break; 7228 } 7229 case HIDE_FULLSCREEN: 7230 dismissFullScreenMode(); 7231 break; 7232 7233 case DOM_FOCUS_CHANGED: 7234 if (inEditingMode()) { 7235 nativeClearCursor(); 7236 rebuildWebTextView(); 7237 } 7238 break; 7239 7240 case SHOW_RECT_MSG_ID: { 7241 WebViewCore.ShowRectData data = (WebViewCore.ShowRectData) msg.obj; 7242 int x = mScrollX; 7243 int left = contentToViewX(data.mLeft); 7244 int width = contentToViewDimension(data.mWidth); 7245 int maxWidth = contentToViewDimension(data.mContentWidth); 7246 int viewWidth = getViewWidth(); 7247 if (width < viewWidth) { 7248 // center align 7249 x += left + width / 2 - mScrollX - viewWidth / 2; 7250 } else { 7251 x += (int) (left + data.mXPercentInDoc * width 7252 - mScrollX - data.mXPercentInView * viewWidth); 7253 } 7254 if (DebugFlags.WEB_VIEW) { 7255 Log.v(LOGTAG, "showRectMsg=(left=" + left + ",width=" + 7256 width + ",maxWidth=" + maxWidth + 7257 ",viewWidth=" + viewWidth + ",x=" 7258 + x + ",xPercentInDoc=" + data.mXPercentInDoc + 7259 ",xPercentInView=" + data.mXPercentInView+ ")"); 7260 } 7261 // use the passing content width to cap x as the current 7262 // mContentWidth may not be updated yet 7263 x = Math.max(0, 7264 (Math.min(maxWidth, x + viewWidth)) - viewWidth); 7265 int top = contentToViewY(data.mTop); 7266 int height = contentToViewDimension(data.mHeight); 7267 int maxHeight = contentToViewDimension(data.mContentHeight); 7268 int viewHeight = getViewHeight(); 7269 int y = (int) (top + data.mYPercentInDoc * height - 7270 data.mYPercentInView * viewHeight); 7271 if (DebugFlags.WEB_VIEW) { 7272 Log.v(LOGTAG, "showRectMsg=(top=" + top + ",height=" + 7273 height + ",maxHeight=" + maxHeight + 7274 ",viewHeight=" + viewHeight + ",y=" 7275 + y + ",yPercentInDoc=" + data.mYPercentInDoc + 7276 ",yPercentInView=" + data.mYPercentInView+ ")"); 7277 } 7278 // use the passing content height to cap y as the current 7279 // mContentHeight may not be updated yet 7280 y = Math.max(0, 7281 (Math.min(maxHeight, y + viewHeight) - viewHeight)); 7282 // We need to take into account the visible title height 7283 // when scrolling since y is an absolute view position. 7284 y = Math.max(0, y - getVisibleTitleHeight()); 7285 scrollTo(x, y); 7286 } 7287 break; 7288 7289 case CENTER_FIT_RECT: 7290 Rect r = (Rect)msg.obj; 7291 centerFitRect(r.left, r.top, r.width(), r.height()); 7292 break; 7293 7294 case SET_SCROLLBAR_MODES: 7295 mHorizontalScrollBarMode = msg.arg1; 7296 mVerticalScrollBarMode = msg.arg2; 7297 break; 7298 7299 case SELECTION_STRING_CHANGED: 7300 if (mAccessibilityInjector != null) { 7301 String selectionString = (String) msg.obj; 7302 mAccessibilityInjector.onSelectionStringChange(selectionString); 7303 } 7304 break; 7305 7306 case SET_TOUCH_HIGHLIGHT_RECTS: 7307 invalidate(mTouchHighlightRegion.getBounds()); 7308 mTouchHighlightRegion.setEmpty(); 7309 if (msg.obj != null) { 7310 ArrayList<Rect> rects = (ArrayList<Rect>) msg.obj; 7311 for (Rect rect : rects) { 7312 Rect viewRect = contentToViewRect(rect); 7313 // some sites, like stories in nytimes.com, set 7314 // mouse event handler in the top div. It is not 7315 // user friendly to highlight the div if it covers 7316 // more than half of the screen. 7317 if (viewRect.width() < getWidth() >> 1 7318 || viewRect.height() < getHeight() >> 1) { 7319 mTouchHighlightRegion.union(viewRect); 7320 invalidate(viewRect); 7321 } else { 7322 Log.w(LOGTAG, "Skip the huge selection rect:" 7323 + viewRect); 7324 } 7325 } 7326 } 7327 break; 7328 7329 case SAVE_WEBARCHIVE_FINISHED: 7330 SaveWebArchiveMessage saveMessage = (SaveWebArchiveMessage)msg.obj; 7331 if (saveMessage.mCallback != null) { 7332 saveMessage.mCallback.onReceiveValue(saveMessage.mResultFile); 7333 } 7334 break; 7335 7336 case SET_AUTOFILLABLE: 7337 mAutoFillData = (WebViewCore.AutoFillData) msg.obj; 7338 if (mWebTextView != null) { 7339 mWebTextView.setAutoFillable(mAutoFillData.getQueryId()); 7340 rebuildWebTextView(); 7341 } 7342 break; 7343 7344 case AUTOFILL_COMPLETE: 7345 if (mWebTextView != null) { 7346 // Clear the WebTextView adapter when AutoFill finishes 7347 // so that the drop down gets cleared. 7348 mWebTextView.setAdapterCustom(null); 7349 } 7350 break; 7351 7352 default: 7353 super.handleMessage(msg); 7354 break; 7355 } 7356 } 7357 } 7358 7359 /** 7360 * Used when receiving messages for REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID 7361 * and UPDATE_TEXT_SELECTION_MSG_ID. Update the selection of WebTextView. 7362 */ 7363 private void updateTextSelectionFromMessage(int nodePointer, 7364 int textGeneration, WebViewCore.TextSelectionData data) { 7365 if (inEditingMode() 7366 && mWebTextView.isSameTextField(nodePointer) 7367 && textGeneration == mTextGeneration) { 7368 mWebTextView.setSelectionFromWebKit(data.mStart, data.mEnd); 7369 } 7370 } 7371 7372 // Class used to use a dropdown for a <select> element 7373 private class InvokeListBox implements Runnable { 7374 // Whether the listbox allows multiple selection. 7375 private boolean mMultiple; 7376 // Passed in to a list with multiple selection to tell 7377 // which items are selected. 7378 private int[] mSelectedArray; 7379 // Passed in to a list with single selection to tell 7380 // where the initial selection is. 7381 private int mSelection; 7382 7383 private Container[] mContainers; 7384 7385 // Need these to provide stable ids to my ArrayAdapter, 7386 // which normally does not have stable ids. (Bug 1250098) 7387 private class Container extends Object { 7388 /** 7389 * Possible values for mEnabled. Keep in sync with OptionStatus in 7390 * WebViewCore.cpp 7391 */ 7392 final static int OPTGROUP = -1; 7393 final static int OPTION_DISABLED = 0; 7394 final static int OPTION_ENABLED = 1; 7395 7396 String mString; 7397 int mEnabled; 7398 int mId; 7399 7400 public String toString() { 7401 return mString; 7402 } 7403 } 7404 7405 /** 7406 * Subclass ArrayAdapter so we can disable OptionGroupLabels, 7407 * and allow filtering. 7408 */ 7409 private class MyArrayListAdapter extends ArrayAdapter<Container> { 7410 public MyArrayListAdapter(Context context, Container[] objects, boolean multiple) { 7411 super(context, 7412 multiple ? com.android.internal.R.layout.select_dialog_multichoice : 7413 com.android.internal.R.layout.select_dialog_singlechoice, 7414 objects); 7415 } 7416 7417 @Override 7418 public View getView(int position, View convertView, 7419 ViewGroup parent) { 7420 // Always pass in null so that we will get a new CheckedTextView 7421 // Otherwise, an item which was previously used as an <optgroup> 7422 // element (i.e. has no check), could get used as an <option> 7423 // element, which needs a checkbox/radio, but it would not have 7424 // one. 7425 convertView = super.getView(position, null, parent); 7426 Container c = item(position); 7427 if (c != null && Container.OPTION_ENABLED != c.mEnabled) { 7428 // ListView does not draw dividers between disabled and 7429 // enabled elements. Use a LinearLayout to provide dividers 7430 LinearLayout layout = new LinearLayout(mContext); 7431 layout.setOrientation(LinearLayout.VERTICAL); 7432 if (position > 0) { 7433 View dividerTop = new View(mContext); 7434 dividerTop.setBackgroundResource( 7435 android.R.drawable.divider_horizontal_bright); 7436 layout.addView(dividerTop); 7437 } 7438 7439 if (Container.OPTGROUP == c.mEnabled) { 7440 // Currently select_dialog_multichoice and 7441 // select_dialog_singlechoice are CheckedTextViews. If 7442 // that changes, the class cast will no longer be valid. 7443 Assert.assertTrue( 7444 convertView instanceof CheckedTextView); 7445 ((CheckedTextView) convertView).setCheckMarkDrawable( 7446 null); 7447 } else { 7448 // c.mEnabled == Container.OPTION_DISABLED 7449 // Draw the disabled element in a disabled state. 7450 convertView.setEnabled(false); 7451 } 7452 7453 layout.addView(convertView); 7454 if (position < getCount() - 1) { 7455 View dividerBottom = new View(mContext); 7456 dividerBottom.setBackgroundResource( 7457 android.R.drawable.divider_horizontal_bright); 7458 layout.addView(dividerBottom); 7459 } 7460 return layout; 7461 } 7462 return convertView; 7463 } 7464 7465 @Override 7466 public boolean hasStableIds() { 7467 // AdapterView's onChanged method uses this to determine whether 7468 // to restore the old state. Return false so that the old (out 7469 // of date) state does not replace the new, valid state. 7470 return false; 7471 } 7472 7473 private Container item(int position) { 7474 if (position < 0 || position >= getCount()) { 7475 return null; 7476 } 7477 return (Container) getItem(position); 7478 } 7479 7480 @Override 7481 public long getItemId(int position) { 7482 Container item = item(position); 7483 if (item == null) { 7484 return -1; 7485 } 7486 return item.mId; 7487 } 7488 7489 @Override 7490 public boolean areAllItemsEnabled() { 7491 return false; 7492 } 7493 7494 @Override 7495 public boolean isEnabled(int position) { 7496 Container item = item(position); 7497 if (item == null) { 7498 return false; 7499 } 7500 return Container.OPTION_ENABLED == item.mEnabled; 7501 } 7502 } 7503 7504 private InvokeListBox(String[] array, int[] enabled, int[] selected) { 7505 mMultiple = true; 7506 mSelectedArray = selected; 7507 7508 int length = array.length; 7509 mContainers = new Container[length]; 7510 for (int i = 0; i < length; i++) { 7511 mContainers[i] = new Container(); 7512 mContainers[i].mString = array[i]; 7513 mContainers[i].mEnabled = enabled[i]; 7514 mContainers[i].mId = i; 7515 } 7516 } 7517 7518 private InvokeListBox(String[] array, int[] enabled, int selection) { 7519 mSelection = selection; 7520 mMultiple = false; 7521 7522 int length = array.length; 7523 mContainers = new Container[length]; 7524 for (int i = 0; i < length; i++) { 7525 mContainers[i] = new Container(); 7526 mContainers[i].mString = array[i]; 7527 mContainers[i].mEnabled = enabled[i]; 7528 mContainers[i].mId = i; 7529 } 7530 } 7531 7532 /* 7533 * Whenever the data set changes due to filtering, this class ensures 7534 * that the checked item remains checked. 7535 */ 7536 private class SingleDataSetObserver extends DataSetObserver { 7537 private long mCheckedId; 7538 private ListView mListView; 7539 private Adapter mAdapter; 7540 7541 /* 7542 * Create a new observer. 7543 * @param id The ID of the item to keep checked. 7544 * @param l ListView for getting and clearing the checked states 7545 * @param a Adapter for getting the IDs 7546 */ 7547 public SingleDataSetObserver(long id, ListView l, Adapter a) { 7548 mCheckedId = id; 7549 mListView = l; 7550 mAdapter = a; 7551 } 7552 7553 public void onChanged() { 7554 // The filter may have changed which item is checked. Find the 7555 // item that the ListView thinks is checked. 7556 int position = mListView.getCheckedItemPosition(); 7557 long id = mAdapter.getItemId(position); 7558 if (mCheckedId != id) { 7559 // Clear the ListView's idea of the checked item, since 7560 // it is incorrect 7561 mListView.clearChoices(); 7562 // Search for mCheckedId. If it is in the filtered list, 7563 // mark it as checked 7564 int count = mAdapter.getCount(); 7565 for (int i = 0; i < count; i++) { 7566 if (mAdapter.getItemId(i) == mCheckedId) { 7567 mListView.setItemChecked(i, true); 7568 break; 7569 } 7570 } 7571 } 7572 } 7573 7574 public void onInvalidate() {} 7575 } 7576 7577 public void run() { 7578 final ListView listView = (ListView) LayoutInflater.from(mContext) 7579 .inflate(com.android.internal.R.layout.select_dialog, null); 7580 final MyArrayListAdapter adapter = new 7581 MyArrayListAdapter(mContext, mContainers, mMultiple); 7582 AlertDialog.Builder b = new AlertDialog.Builder(mContext) 7583 .setView(listView).setCancelable(true) 7584 .setInverseBackgroundForced(true); 7585 7586 if (mMultiple) { 7587 b.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { 7588 public void onClick(DialogInterface dialog, int which) { 7589 mWebViewCore.sendMessage( 7590 EventHub.LISTBOX_CHOICES, 7591 adapter.getCount(), 0, 7592 listView.getCheckedItemPositions()); 7593 }}); 7594 b.setNegativeButton(android.R.string.cancel, 7595 new DialogInterface.OnClickListener() { 7596 public void onClick(DialogInterface dialog, int which) { 7597 mWebViewCore.sendMessage( 7598 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 7599 }}); 7600 } 7601 mListBoxDialog = b.create(); 7602 listView.setAdapter(adapter); 7603 listView.setFocusableInTouchMode(true); 7604 // There is a bug (1250103) where the checks in a ListView with 7605 // multiple items selected are associated with the positions, not 7606 // the ids, so the items do not properly retain their checks when 7607 // filtered. Do not allow filtering on multiple lists until 7608 // that bug is fixed. 7609 7610 listView.setTextFilterEnabled(!mMultiple); 7611 if (mMultiple) { 7612 listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 7613 int length = mSelectedArray.length; 7614 for (int i = 0; i < length; i++) { 7615 listView.setItemChecked(mSelectedArray[i], true); 7616 } 7617 } else { 7618 listView.setOnItemClickListener(new OnItemClickListener() { 7619 public void onItemClick(AdapterView parent, View v, 7620 int position, long id) { 7621 // Rather than sending the message right away, send it 7622 // after the page regains focus. 7623 mListBoxMessage = Message.obtain(null, 7624 EventHub.SINGLE_LISTBOX_CHOICE, (int) id, 0); 7625 mListBoxDialog.dismiss(); 7626 mListBoxDialog = null; 7627 } 7628 }); 7629 if (mSelection != -1) { 7630 listView.setSelection(mSelection); 7631 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 7632 listView.setItemChecked(mSelection, true); 7633 DataSetObserver observer = new SingleDataSetObserver( 7634 adapter.getItemId(mSelection), listView, adapter); 7635 adapter.registerDataSetObserver(observer); 7636 } 7637 } 7638 mListBoxDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { 7639 public void onCancel(DialogInterface dialog) { 7640 mWebViewCore.sendMessage( 7641 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 7642 mListBoxDialog = null; 7643 } 7644 }); 7645 mListBoxDialog.show(); 7646 } 7647 } 7648 7649 private Message mListBoxMessage; 7650 7651 /* 7652 * Request a dropdown menu for a listbox with multiple selection. 7653 * 7654 * @param array Labels for the listbox. 7655 * @param enabledArray State for each element in the list. See static 7656 * integers in Container class. 7657 * @param selectedArray Which positions are initally selected. 7658 */ 7659 void requestListBox(String[] array, int[] enabledArray, int[] 7660 selectedArray) { 7661 mPrivateHandler.post( 7662 new InvokeListBox(array, enabledArray, selectedArray)); 7663 } 7664 7665 /* 7666 * Request a dropdown menu for a listbox with single selection or a single 7667 * <select> element. 7668 * 7669 * @param array Labels for the listbox. 7670 * @param enabledArray State for each element in the list. See static 7671 * integers in Container class. 7672 * @param selection Which position is initally selected. 7673 */ 7674 void requestListBox(String[] array, int[] enabledArray, int selection) { 7675 mPrivateHandler.post( 7676 new InvokeListBox(array, enabledArray, selection)); 7677 } 7678 7679 // called by JNI 7680 private void sendMoveFocus(int frame, int node) { 7681 mWebViewCore.sendMessage(EventHub.SET_MOVE_FOCUS, 7682 new WebViewCore.CursorData(frame, node, 0, 0)); 7683 } 7684 7685 // called by JNI 7686 private void sendMoveMouse(int frame, int node, int x, int y) { 7687 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, 7688 new WebViewCore.CursorData(frame, node, x, y)); 7689 } 7690 7691 /* 7692 * Send a mouse move event to the webcore thread. 7693 * 7694 * @param removeFocus Pass true if the "mouse" cursor is now over a node 7695 * which wants key events, but it is not the focus. This 7696 * will make the visual appear as though nothing is in 7697 * focus. Remove the WebTextView, if present, and stop 7698 * drawing the blinking caret. 7699 * called by JNI 7700 */ 7701 private void sendMoveMouseIfLatest(boolean removeFocus) { 7702 if (removeFocus) { 7703 clearTextEntry(); 7704 } 7705 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE_IF_LATEST, 7706 cursorData()); 7707 } 7708 7709 // called by JNI 7710 private void sendMotionUp(int touchGeneration, 7711 int frame, int node, int x, int y) { 7712 WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData(); 7713 touchUpData.mMoveGeneration = touchGeneration; 7714 touchUpData.mFrame = frame; 7715 touchUpData.mNode = node; 7716 touchUpData.mX = x; 7717 touchUpData.mY = y; 7718 mWebViewCore.sendMessage(EventHub.TOUCH_UP, touchUpData); 7719 } 7720 7721 7722 private int getScaledMaxXScroll() { 7723 int width; 7724 if (mHeightCanMeasure == false) { 7725 width = getViewWidth() / 4; 7726 } else { 7727 Rect visRect = new Rect(); 7728 calcOurVisibleRect(visRect); 7729 width = visRect.width() / 2; 7730 } 7731 // FIXME the divisor should be retrieved from somewhere 7732 return viewToContentX(width); 7733 } 7734 7735 private int getScaledMaxYScroll() { 7736 int height; 7737 if (mHeightCanMeasure == false) { 7738 height = getViewHeight() / 4; 7739 } else { 7740 Rect visRect = new Rect(); 7741 calcOurVisibleRect(visRect); 7742 height = visRect.height() / 2; 7743 } 7744 // FIXME the divisor should be retrieved from somewhere 7745 // the closest thing today is hard-coded into ScrollView.java 7746 // (from ScrollView.java, line 363) int maxJump = height/2; 7747 return Math.round(height * mZoomManager.getInvScale()); 7748 } 7749 7750 /** 7751 * Called by JNI to invalidate view 7752 */ 7753 private void viewInvalidate() { 7754 invalidate(); 7755 } 7756 7757 /** 7758 * Pass the key directly to the page. This assumes that 7759 * nativePageShouldHandleShiftAndArrows() returned true. 7760 */ 7761 private void letPageHandleNavKey(int keyCode, long time, boolean down, int metaState) { 7762 int keyEventAction; 7763 int eventHubAction; 7764 if (down) { 7765 keyEventAction = KeyEvent.ACTION_DOWN; 7766 eventHubAction = EventHub.KEY_DOWN; 7767 playSoundEffect(keyCodeToSoundsEffect(keyCode)); 7768 } else { 7769 keyEventAction = KeyEvent.ACTION_UP; 7770 eventHubAction = EventHub.KEY_UP; 7771 } 7772 7773 KeyEvent event = new KeyEvent(time, time, keyEventAction, keyCode, 7774 1, (metaState & KeyEvent.META_SHIFT_ON) 7775 | (metaState & KeyEvent.META_ALT_ON) 7776 | (metaState & KeyEvent.META_SYM_ON) 7777 , KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0); 7778 mWebViewCore.sendMessage(eventHubAction, event); 7779 } 7780 7781 // return true if the key was handled 7782 private boolean navHandledKey(int keyCode, int count, boolean noScroll, 7783 long time) { 7784 if (mNativeClass == 0) { 7785 return false; 7786 } 7787 mInitialHitTestResult = null; 7788 mLastCursorTime = time; 7789 mLastCursorBounds = nativeGetCursorRingBounds(); 7790 boolean keyHandled 7791 = nativeMoveCursor(keyCode, count, noScroll) == false; 7792 if (DebugFlags.WEB_VIEW) { 7793 Log.v(LOGTAG, "navHandledKey mLastCursorBounds=" + mLastCursorBounds 7794 + " mLastCursorTime=" + mLastCursorTime 7795 + " handled=" + keyHandled); 7796 } 7797 if (keyHandled == false || mHeightCanMeasure == false) { 7798 return keyHandled; 7799 } 7800 Rect contentCursorRingBounds = nativeGetCursorRingBounds(); 7801 if (contentCursorRingBounds.isEmpty()) return keyHandled; 7802 Rect viewCursorRingBounds = contentToViewRect(contentCursorRingBounds); 7803 Rect visRect = new Rect(); 7804 calcOurVisibleRect(visRect); 7805 Rect outset = new Rect(visRect); 7806 int maxXScroll = visRect.width() / 2; 7807 int maxYScroll = visRect.height() / 2; 7808 outset.inset(-maxXScroll, -maxYScroll); 7809 if (Rect.intersects(outset, viewCursorRingBounds) == false) { 7810 return keyHandled; 7811 } 7812 // FIXME: Necessary because ScrollView/ListView do not scroll left/right 7813 int maxH = Math.min(viewCursorRingBounds.right - visRect.right, 7814 maxXScroll); 7815 if (maxH > 0) { 7816 pinScrollBy(maxH, 0, true, 0); 7817 } else { 7818 maxH = Math.max(viewCursorRingBounds.left - visRect.left, 7819 -maxXScroll); 7820 if (maxH < 0) { 7821 pinScrollBy(maxH, 0, true, 0); 7822 } 7823 } 7824 if (mLastCursorBounds.isEmpty()) return keyHandled; 7825 if (mLastCursorBounds.equals(contentCursorRingBounds)) { 7826 return keyHandled; 7827 } 7828 if (DebugFlags.WEB_VIEW) { 7829 Log.v(LOGTAG, "navHandledKey contentCursorRingBounds=" 7830 + contentCursorRingBounds); 7831 } 7832 requestRectangleOnScreen(viewCursorRingBounds); 7833 mUserScroll = true; 7834 return keyHandled; 7835 } 7836 7837 /** 7838 * @return If the page should receive Shift and arrows. 7839 */ 7840 private boolean pageShouldHandleShiftAndArrows() { 7841 // TODO: Maybe the injected script should announce its presence in 7842 // the page meta-tag so the nativePageShouldHandleShiftAndArrows 7843 // will check that as one of the conditions it looks for 7844 return (nativePageShouldHandleShiftAndArrows() || mAccessibilityScriptInjected); 7845 } 7846 7847 /** 7848 * Set the background color. It's white by default. Pass 7849 * zero to make the view transparent. 7850 * @param color the ARGB color described by Color.java 7851 */ 7852 public void setBackgroundColor(int color) { 7853 mBackgroundColor = color; 7854 mWebViewCore.sendMessage(EventHub.SET_BACKGROUND_COLOR, color); 7855 } 7856 7857 public void debugDump() { 7858 nativeDebugDump(); 7859 mWebViewCore.sendMessage(EventHub.DUMP_NAVTREE); 7860 } 7861 7862 /** 7863 * Draw the HTML page into the specified canvas. This call ignores any 7864 * view-specific zoom, scroll offset, or other changes. It does not draw 7865 * any view-specific chrome, such as progress or URL bars. 7866 * 7867 * @hide only needs to be accessible to Browser and testing 7868 */ 7869 public void drawPage(Canvas canvas) { 7870 nativeDraw(canvas, 0, 0, false); 7871 } 7872 7873 /** 7874 * Set the time to wait between passing touches to WebCore. See also the 7875 * TOUCH_SENT_INTERVAL member for further discussion. 7876 * 7877 * @hide This is only used by the DRT test application. 7878 */ 7879 public void setTouchInterval(int interval) { 7880 mCurrentTouchInterval = interval; 7881 } 7882 7883 /** 7884 * Toggle whether multi touch events should be sent to webkit 7885 * no matter if UI wants to handle it first. 7886 * 7887 * @hide This is only used by the webkit layout test. 7888 */ 7889 public void setDeferMultiTouch(boolean value) { 7890 mDeferMultitouch = value; 7891 Log.v(LOGTAG, "set mDeferMultitouch to " + value); 7892 } 7893 7894 /** 7895 * Update our cache with updatedText. 7896 * @param updatedText The new text to put in our cache. 7897 */ 7898 /* package */ void updateCachedTextfield(String updatedText) { 7899 // Also place our generation number so that when we look at the cache 7900 // we recognize that it is up to date. 7901 nativeUpdateCachedTextfield(updatedText, mTextGeneration); 7902 } 7903 7904 /*package*/ void autoFillForm(int autoFillQueryId) { 7905 mWebViewCore.sendMessage(EventHub.AUTOFILL_FORM, autoFillQueryId, /* unused */0); 7906 } 7907 7908 /* package */ ViewManager getViewManager() { 7909 return mViewManager; 7910 } 7911 7912 private native int nativeCacheHitFramePointer(); 7913 private native Rect nativeCacheHitNodeBounds(); 7914 private native int nativeCacheHitNodePointer(); 7915 /* package */ native void nativeClearCursor(); 7916 private native void nativeCreate(int ptr); 7917 private native int nativeCursorFramePointer(); 7918 private native Rect nativeCursorNodeBounds(); 7919 private native int nativeCursorNodePointer(); 7920 /* package */ native boolean nativeCursorMatchesFocus(); 7921 private native boolean nativeCursorIntersects(Rect visibleRect); 7922 private native boolean nativeCursorIsAnchor(); 7923 private native boolean nativeCursorIsTextInput(); 7924 private native Point nativeCursorPosition(); 7925 private native String nativeCursorText(); 7926 /** 7927 * Returns true if the native cursor node says it wants to handle key events 7928 * (ala plugins). This can only be called if mNativeClass is non-zero! 7929 */ 7930 private native boolean nativeCursorWantsKeyEvents(); 7931 private native void nativeDebugDump(); 7932 private native void nativeDestroy(); 7933 7934 /** 7935 * Draw the picture set with a background color and extra. If 7936 * "splitIfNeeded" is true and the return value is not 0, the return value 7937 * MUST be passed to WebViewCore with SPLIT_PICTURE_SET message so that the 7938 * native allocation can be freed. 7939 */ 7940 private native int nativeDraw(Canvas canvas, int color, int extra, 7941 boolean splitIfNeeded); 7942 private native void nativeDumpDisplayTree(String urlOrNull); 7943 private native boolean nativeEvaluateLayersAnimations(); 7944 private native boolean nativeDrawGL(Rect rect, float scale, int extras); 7945 private native void nativeExtendSelection(int x, int y); 7946 private native int nativeFindAll(String findLower, String findUpper, 7947 boolean sameAsLastSearch); 7948 private native void nativeFindNext(boolean forward); 7949 /* package */ native int nativeFocusCandidateFramePointer(); 7950 /* package */ native boolean nativeFocusCandidateHasNextTextfield(); 7951 /* package */ native boolean nativeFocusCandidateIsPassword(); 7952 private native boolean nativeFocusCandidateIsRtlText(); 7953 private native boolean nativeFocusCandidateIsTextInput(); 7954 /* package */ native int nativeFocusCandidateMaxLength(); 7955 /* package */ native String nativeFocusCandidateName(); 7956 private native Rect nativeFocusCandidateNodeBounds(); 7957 /** 7958 * @return A Rect with left, top, right, bottom set to the corresponding 7959 * padding values in the focus candidate, if it is a textfield/textarea with 7960 * a style. Otherwise return null. This is not actually a rectangle; Rect 7961 * is being used to pass four integers. 7962 */ 7963 private native Rect nativeFocusCandidatePaddingRect(); 7964 /* package */ native int nativeFocusCandidatePointer(); 7965 private native String nativeFocusCandidateText(); 7966 /* package */ native float nativeFocusCandidateTextSize(); 7967 /* package */ native int nativeFocusCandidateLineHeight(); 7968 /** 7969 * Returns an integer corresponding to WebView.cpp::type. 7970 * See WebTextView.setType() 7971 */ 7972 private native int nativeFocusCandidateType(); 7973 private native boolean nativeFocusIsPlugin(); 7974 private native Rect nativeFocusNodeBounds(); 7975 /* package */ native int nativeFocusNodePointer(); 7976 private native Rect nativeGetCursorRingBounds(); 7977 private native String nativeGetSelection(); 7978 private native boolean nativeHasCursorNode(); 7979 private native boolean nativeHasFocusNode(); 7980 private native void nativeHideCursor(); 7981 private native boolean nativeHitSelection(int x, int y); 7982 private native String nativeImageURI(int x, int y); 7983 private native void nativeInstrumentReport(); 7984 private native Rect nativeLayerBounds(int layer); 7985 /* package */ native boolean nativeMoveCursorToNextTextInput(); 7986 // return true if the page has been scrolled 7987 private native boolean nativeMotionUp(int x, int y, int slop); 7988 // returns false if it handled the key 7989 private native boolean nativeMoveCursor(int keyCode, int count, 7990 boolean noScroll); 7991 private native int nativeMoveGeneration(); 7992 private native void nativeMoveSelection(int x, int y); 7993 /** 7994 * @return true if the page should get the shift and arrow keys, rather 7995 * than select text/navigation. 7996 * 7997 * If the focus is a plugin, or if the focus and cursor match and are 7998 * a contentEditable element, then the page should handle these keys. 7999 */ 8000 private native boolean nativePageShouldHandleShiftAndArrows(); 8001 private native boolean nativePointInNavCache(int x, int y, int slop); 8002 // Like many other of our native methods, you must make sure that 8003 // mNativeClass is not null before calling this method. 8004 private native void nativeRecordButtons(boolean focused, 8005 boolean pressed, boolean invalidate); 8006 private native void nativeResetSelection(); 8007 private native void nativeSelectAll(); 8008 private native void nativeSelectBestAt(Rect rect); 8009 private native int nativeSelectionX(); 8010 private native int nativeSelectionY(); 8011 private native int nativeFindIndex(); 8012 private native void nativeSetExtendSelection(); 8013 private native void nativeSetFindIsEmpty(); 8014 private native void nativeSetFindIsUp(boolean isUp); 8015 private native void nativeSetHeightCanMeasure(boolean measure); 8016 private native void nativeSetBaseLayer(int layer, Rect invalRect); 8017 private native void nativeShowCursorTimed(); 8018 private native void nativeReplaceBaseContent(int content); 8019 private native void nativeCopyBaseContentToPicture(Picture pict); 8020 private native boolean nativeHasContent(); 8021 private native void nativeSetSelectionPointer(boolean set, 8022 float scale, int x, int y); 8023 private native boolean nativeStartSelection(int x, int y); 8024 private native Rect nativeSubtractLayers(Rect content); 8025 private native int nativeTextGeneration(); 8026 // Never call this version except by updateCachedTextfield(String) - 8027 // we always want to pass in our generation number. 8028 private native void nativeUpdateCachedTextfield(String updatedText, 8029 int generation); 8030 private native boolean nativeWordSelection(int x, int y); 8031 // return NO_LEFTEDGE means failure. 8032 static final int NO_LEFTEDGE = -1; 8033 native int nativeGetBlockLeftEdge(int x, int y, float scale); 8034 8035 // Returns a pointer to the scrollable LayerAndroid at the given point. 8036 private native int nativeScrollableLayer(int x, int y, Rect scrollRect); 8037 private native boolean nativeScrollLayer(int layer, int dx, int dy); 8038} 8039