WebView.java revision 75a36c2bc70a5b1438b75c8ccb15a41d02d78c62
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.webkit; 18 19import android.app.AlertDialog; 20import android.content.Context; 21import android.content.DialogInterface; 22import android.content.Intent; 23import android.content.DialogInterface.OnCancelListener; 24import android.content.pm.PackageManager; 25import android.database.DataSetObserver; 26import android.graphics.Bitmap; 27import android.graphics.Canvas; 28import android.graphics.Color; 29import android.graphics.Interpolator; 30import android.graphics.Picture; 31import android.graphics.Point; 32import android.graphics.Rect; 33import android.graphics.drawable.Drawable; 34import android.net.http.SslCertificate; 35import android.net.Uri; 36import android.os.Bundle; 37import android.os.Handler; 38import android.os.Message; 39import android.os.ServiceManager; 40import android.os.SystemClock; 41import android.text.IClipboard; 42import android.text.Selection; 43import android.text.Spannable; 44import android.util.AttributeSet; 45import android.util.EventLog; 46import android.util.Log; 47import android.util.TypedValue; 48import android.view.Gravity; 49import android.view.KeyEvent; 50import android.view.LayoutInflater; 51import android.view.MotionEvent; 52import android.view.ScaleGestureDetector; 53import android.view.SoundEffectConstants; 54import android.view.VelocityTracker; 55import android.view.View; 56import android.view.ViewConfiguration; 57import android.view.ViewGroup; 58import android.view.ViewTreeObserver; 59import android.view.animation.AlphaAnimation; 60import android.view.inputmethod.EditorInfo; 61import android.view.inputmethod.InputConnection; 62import android.view.inputmethod.InputMethodManager; 63import android.webkit.WebTextView.AutoCompleteAdapter; 64import android.webkit.WebViewCore.EventHub; 65import android.widget.AbsoluteLayout; 66import android.widget.Adapter; 67import android.widget.AdapterView; 68import android.widget.ArrayAdapter; 69import android.widget.CheckedTextView; 70import android.widget.FrameLayout; 71import android.widget.LinearLayout; 72import android.widget.ListView; 73import android.widget.Scroller; 74import android.widget.Toast; 75import android.widget.ZoomButtonsController; 76import android.widget.ZoomControls; 77import android.widget.AdapterView.OnItemClickListener; 78 79import java.io.File; 80import java.io.FileInputStream; 81import java.io.FileNotFoundException; 82import java.io.FileOutputStream; 83import java.io.IOException; 84import java.net.URLDecoder; 85import java.util.ArrayList; 86import java.util.List; 87import java.util.HashMap; 88import java.util.Map; 89import java.util.Set; 90 91import junit.framework.Assert; 92 93/** 94 * <p>A View that displays web pages. This class is the basis upon which you 95 * can roll your own web browser or simply display some online content within your Activity. 96 * It uses the WebKit rendering engine to display 97 * web pages and includes methods to navigate forward and backward 98 * through a history, zoom in and out, perform text searches and more.</p> 99 * <p>To enable the built-in zoom, set 100 * {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)} 101 * (introduced in API version 3). 102 * <p>Note that, in order for your Activity to access the Internet and load web pages 103 * in a WebView, you must add the <var>INTERNET</var> permissions to your 104 * Android Manifest file:</p> 105 * <pre><uses-permission android:name="android.permission.INTERNET" /></pre> 106 * 107 * <p>This must be a child of the <code><manifest></code> element.</p> 108 * 109 * <h3>Basic usage</h3> 110 * 111 * <p>By default, a WebView provides no browser-like widgets, does not 112 * enable JavaScript and errors will be ignored. If your goal is only 113 * to display some HTML as a part of your UI, this is probably fine; 114 * the user won't need to interact with the web page beyond reading 115 * it, and the web page won't need to interact with the user. If you 116 * actually want a fully blown web browser, then you probably want to 117 * invoke the Browser application with your URL rather than show it 118 * with a WebView. See {@link android.content.Intent} for more information.</p> 119 * 120 * <pre class="prettyprint"> 121 * WebView webview = new WebView(this); 122 * setContentView(webview); 123 * 124 * // Simplest usage: note that an exception will NOT be thrown 125 * // if there is an error loading this page (see below). 126 * webview.loadUrl("http://slashdot.org/"); 127 * 128 * // Of course you can also load from any string: 129 * String summary = "<html><body>You scored <b>192</b> points.</body></html>"; 130 * webview.loadData(summary, "text/html", "utf-8"); 131 * // ... although note that there are restrictions on what this HTML can do. 132 * // See the JavaDocs for loadData and loadDataWithBaseUrl for more info. 133 * </pre> 134 * 135 * <p>A WebView has several customization points where you can add your 136 * own behavior. These are:</p> 137 * 138 * <ul> 139 * <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass. 140 * This class is called when something that might impact a 141 * browser UI happens, for instance, progress updates and 142 * JavaScript alerts are sent here. 143 * </li> 144 * <li>Creating and setting a {@link android.webkit.WebViewClient} subclass. 145 * It will be called when things happen that impact the 146 * rendering of the content, eg, errors or form submissions. You 147 * can also intercept URL loading here.</li> 148 * <li>Via the {@link android.webkit.WebSettings} class, which contains 149 * miscellaneous configuration. </li> 150 * <li>With the {@link android.webkit.WebView#addJavascriptInterface} method. 151 * This lets you bind Java objects into the WebView so they can be 152 * controlled from the web pages JavaScript.</li> 153 * </ul> 154 * 155 * <p>Here's a more complicated example, showing error handling, 156 * settings, and progress notification:</p> 157 * 158 * <pre class="prettyprint"> 159 * // Let's display the progress in the activity title bar, like the 160 * // browser app does. 161 * getWindow().requestFeature(Window.FEATURE_PROGRESS); 162 * 163 * webview.getSettings().setJavaScriptEnabled(true); 164 * 165 * final Activity activity = this; 166 * webview.setWebChromeClient(new WebChromeClient() { 167 * public void onProgressChanged(WebView view, int progress) { 168 * // Activities and WebViews measure progress with different scales. 169 * // The progress meter will automatically disappear when we reach 100% 170 * activity.setProgress(progress * 1000); 171 * } 172 * }); 173 * webview.setWebViewClient(new WebViewClient() { 174 * public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { 175 * Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); 176 * } 177 * }); 178 * 179 * webview.loadUrl("http://slashdot.org/"); 180 * </pre> 181 * 182 * <h3>Cookie and window management</h3> 183 * 184 * <p>For obvious security reasons, your application has its own 185 * cache, cookie store etc - it does not share the Browser 186 * applications data. Cookies are managed on a separate thread, so 187 * operations like index building don't block the UI 188 * thread. Follow the instructions in {@link android.webkit.CookieSyncManager} 189 * if you want to use cookies in your application. 190 * </p> 191 * 192 * <p>By default, requests by the HTML to open new windows are 193 * ignored. This is true whether they be opened by JavaScript or by 194 * the target attribute on a link. You can customize your 195 * WebChromeClient to provide your own behaviour for opening multiple windows, 196 * and render them in whatever manner you want.</p> 197 * 198 * <p>Standard behavior for an Activity is to be destroyed and 199 * recreated when the devices orientation is changed. This will cause 200 * the WebView to reload the current page. If you don't want that, you 201 * can set your Activity to handle the orientation and keyboardHidden 202 * changes, and then just leave the WebView alone. It'll automatically 203 * re-orient itself as appropriate.</p> 204 */ 205public class WebView extends AbsoluteLayout 206 implements ViewTreeObserver.OnGlobalFocusChangeListener, 207 ViewGroup.OnHierarchyChangeListener { 208 209 // enable debug output for drag trackers 210 private static final boolean DEBUG_DRAG_TRACKER = false; 211 // if AUTO_REDRAW_HACK is true, then the CALL key will toggle redrawing 212 // the screen all-the-time. Good for profiling our drawing code 213 static private final boolean AUTO_REDRAW_HACK = false; 214 // true means redraw the screen all-the-time. Only with AUTO_REDRAW_HACK 215 private boolean mAutoRedraw; 216 217 static final String LOGTAG = "webview"; 218 219 private static class ExtendedZoomControls extends FrameLayout { 220 public ExtendedZoomControls(Context context, AttributeSet attrs) { 221 super(context, attrs); 222 LayoutInflater inflater = (LayoutInflater) 223 context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 224 inflater.inflate(com.android.internal.R.layout.zoom_magnify, this, true); 225 mPlusMinusZoomControls = (ZoomControls) findViewById( 226 com.android.internal.R.id.zoomControls); 227 findViewById(com.android.internal.R.id.zoomMagnify).setVisibility( 228 View.GONE); 229 } 230 231 public void show(boolean showZoom, boolean canZoomOut) { 232 mPlusMinusZoomControls.setVisibility( 233 showZoom ? View.VISIBLE : View.GONE); 234 fade(View.VISIBLE, 0.0f, 1.0f); 235 } 236 237 public void hide() { 238 fade(View.GONE, 1.0f, 0.0f); 239 } 240 241 private void fade(int visibility, float startAlpha, float endAlpha) { 242 AlphaAnimation anim = new AlphaAnimation(startAlpha, endAlpha); 243 anim.setDuration(500); 244 startAnimation(anim); 245 setVisibility(visibility); 246 } 247 248 public boolean hasFocus() { 249 return mPlusMinusZoomControls.hasFocus(); 250 } 251 252 public void setOnZoomInClickListener(OnClickListener listener) { 253 mPlusMinusZoomControls.setOnZoomInClickListener(listener); 254 } 255 256 public void setOnZoomOutClickListener(OnClickListener listener) { 257 mPlusMinusZoomControls.setOnZoomOutClickListener(listener); 258 } 259 260 ZoomControls mPlusMinusZoomControls; 261 } 262 263 /** 264 * Transportation object for returning WebView across thread boundaries. 265 */ 266 public class WebViewTransport { 267 private WebView mWebview; 268 269 /** 270 * Set the WebView to the transportation object. 271 * @param webview The WebView to transport. 272 */ 273 public synchronized void setWebView(WebView webview) { 274 mWebview = webview; 275 } 276 277 /** 278 * Return the WebView object. 279 * @return WebView The transported WebView object. 280 */ 281 public synchronized WebView getWebView() { 282 return mWebview; 283 } 284 } 285 286 // A final CallbackProxy shared by WebViewCore and BrowserFrame. 287 private final CallbackProxy mCallbackProxy; 288 289 private final WebViewDatabase mDatabase; 290 291 // SSL certificate for the main top-level page (if secure) 292 private SslCertificate mCertificate; 293 294 // Native WebView pointer that is 0 until the native object has been 295 // created. 296 private int mNativeClass; 297 // This would be final but it needs to be set to null when the WebView is 298 // destroyed. 299 private WebViewCore mWebViewCore; 300 // Handler for dispatching UI messages. 301 /* package */ final Handler mPrivateHandler = new PrivateHandler(); 302 private WebTextView mWebTextView; 303 // Used to ignore changes to webkit text that arrives to the UI side after 304 // more key events. 305 private int mTextGeneration; 306 307 // Used by WebViewCore to create child views. 308 /* package */ final ViewManager mViewManager; 309 310 // Used to display in full screen mode 311 PluginFullScreenHolder mFullScreenHolder; 312 313 /** 314 * Position of the last touch event. 315 */ 316 private float mLastTouchX; 317 private float mLastTouchY; 318 319 /** 320 * Time of the last touch event. 321 */ 322 private long mLastTouchTime; 323 324 /** 325 * Time of the last time sending touch event to WebViewCore 326 */ 327 private long mLastSentTouchTime; 328 329 /** 330 * The minimum elapsed time before sending another ACTION_MOVE event to 331 * WebViewCore. This really should be tuned for each type of the devices. 332 * For example in Google Map api test case, it takes Dream device at least 333 * 150ms to do a full cycle in the WebViewCore by processing a touch event, 334 * triggering the layout and drawing the picture. While the same process 335 * takes 60+ms on the current high speed device. If we make 336 * TOUCH_SENT_INTERVAL too small, there will be multiple touch events sent 337 * to WebViewCore queue and the real layout and draw events will be pushed 338 * to further, which slows down the refresh rate. Choose 50 to favor the 339 * current high speed devices. For Dream like devices, 100 is a better 340 * choice. Maybe make this in the buildspec later. 341 */ 342 private static final int TOUCH_SENT_INTERVAL = 50; 343 private int mCurrentTouchInterval = TOUCH_SENT_INTERVAL; 344 345 /** 346 * Helper class to get velocity for fling 347 */ 348 VelocityTracker mVelocityTracker; 349 private int mMaximumFling; 350 private float mLastVelocity; 351 private float mLastVelX; 352 private float mLastVelY; 353 354 /** 355 * Touch mode 356 */ 357 private int mTouchMode = TOUCH_DONE_MODE; 358 private static final int TOUCH_INIT_MODE = 1; 359 private static final int TOUCH_DRAG_START_MODE = 2; 360 private static final int TOUCH_DRAG_MODE = 3; 361 private static final int TOUCH_SHORTPRESS_START_MODE = 4; 362 private static final int TOUCH_SHORTPRESS_MODE = 5; 363 private static final int TOUCH_DOUBLE_TAP_MODE = 6; 364 private static final int TOUCH_DONE_MODE = 7; 365 private static final int TOUCH_SELECT_MODE = 8; 366 private static final int TOUCH_PINCH_DRAG = 9; 367 368 // Whether to forward the touch events to WebCore 369 private boolean mForwardTouchEvents = false; 370 371 // Whether to prevent drag during touch. The initial value depends on 372 // mForwardTouchEvents. If WebCore wants touch events, we assume it will 373 // take control of touch events unless it says no for touch down event. 374 private static final int PREVENT_DRAG_NO = 0; 375 private static final int PREVENT_DRAG_MAYBE_YES = 1; 376 private static final int PREVENT_DRAG_YES = 2; 377 private static final int PREVENT_DRAG_CANCEL = 3; 378 private int mPreventDrag = PREVENT_DRAG_NO; 379 380 // by default mPreventLongPress is false. If it is true, long press event 381 // will be handled by WebKit instead of UI. 382 private boolean mPreventLongPress = false; 383 // by default mPreventDoubleTap is false. If it is true, double tap event 384 // will be handled by WebKit instead of UI. 385 private boolean mPreventDoubleTap = false; 386 387 // this needs to be in sync with the logic in WebKit's 388 // EventHandler::handleTouchEvent() 389 private static final int TOUCH_PREVENT_DRAG = 0x1; 390 private static final int TOUCH_PREVENT_LONGPRESS = 0x2; 391 private static final int TOUCH_PREVENT_DOUBLETAP = 0x4; 392 393 // To keep track of whether the current drag was initiated by a WebTextView, 394 // so that we know not to hide the cursor 395 boolean mDragFromTextInput; 396 397 // Whether or not to draw the cursor ring. 398 private boolean mDrawCursorRing = true; 399 400 // true if onPause has been called (and not onResume) 401 private boolean mIsPaused; 402 403 /** 404 * Customizable constant 405 */ 406 // pre-computed square of ViewConfiguration.getScaledTouchSlop() 407 private int mTouchSlopSquare; 408 // pre-computed square of ViewConfiguration.getScaledDoubleTapSlop() 409 private int mDoubleTapSlopSquare; 410 // pre-computed density adjusted navigation slop 411 private int mNavSlop; 412 // This should be ViewConfiguration.getTapTimeout() 413 // But system time out is 100ms, which is too short for the browser. 414 // In the browser, if it switches out of tap too soon, jump tap won't work. 415 private static final int TAP_TIMEOUT = 200; 416 // This should be ViewConfiguration.getLongPressTimeout() 417 // But system time out is 500ms, which is too short for the browser. 418 // With a short timeout, it's difficult to treat trigger a short press. 419 private static final int LONG_PRESS_TIMEOUT = 1000; 420 // needed to avoid flinging after a pause of no movement 421 private static final int MIN_FLING_TIME = 250; 422 // draw unfiltered after drag is held without movement 423 private static final int MOTIONLESS_TIME = 100; 424 // The time that the Zoom Controls are visible before fading away 425 private static final long ZOOM_CONTROLS_TIMEOUT = 426 ViewConfiguration.getZoomControlsTimeout(); 427 // The amount of content to overlap between two screens when going through 428 // pages with the space bar, in pixels. 429 private static final int PAGE_SCROLL_OVERLAP = 24; 430 431 /** 432 * These prevent calling requestLayout if either dimension is fixed. This 433 * depends on the layout parameters and the measure specs. 434 */ 435 boolean mWidthCanMeasure; 436 boolean mHeightCanMeasure; 437 438 // Remember the last dimensions we sent to the native side so we can avoid 439 // sending the same dimensions more than once. 440 int mLastWidthSent; 441 int mLastHeightSent; 442 443 private int mContentWidth; // cache of value from WebViewCore 444 private int mContentHeight; // cache of value from WebViewCore 445 446 // Need to have the separate control for horizontal and vertical scrollbar 447 // style than the View's single scrollbar style 448 private boolean mOverlayHorizontalScrollbar = true; 449 private boolean mOverlayVerticalScrollbar = false; 450 451 // our standard speed. this way small distances will be traversed in less 452 // time than large distances, but we cap the duration, so that very large 453 // distances won't take too long to get there. 454 private static final int STD_SPEED = 480; // pixels per second 455 // time for the longest scroll animation 456 private static final int MAX_DURATION = 750; // milliseconds 457 private static final int SLIDE_TITLE_DURATION = 500; // milliseconds 458 private Scroller mScroller; 459 460 private boolean mWrapContent; 461 private static final int MOTIONLESS_FALSE = 0; 462 private static final int MOTIONLESS_PENDING = 1; 463 private static final int MOTIONLESS_TRUE = 2; 464 private int mHeldMotionless; 465 466 // whether support multi-touch 467 private boolean mSupportMultiTouch; 468 // use the framework's ScaleGestureDetector to handle multi-touch 469 private ScaleGestureDetector mScaleDetector; 470 // minimum scale change during multi-touch zoom 471 private static float PREVIEW_SCALE_INCREMENT = 0.01f; 472 473 // the anchor point in the document space where VIEW_SIZE_CHANGED should 474 // apply to 475 private int mAnchorX; 476 private int mAnchorY; 477 478 /** 479 * Private message ids 480 */ 481 private static final int REMEMBER_PASSWORD = 1; 482 private static final int NEVER_REMEMBER_PASSWORD = 2; 483 private static final int SWITCH_TO_SHORTPRESS = 3; 484 private static final int SWITCH_TO_LONGPRESS = 4; 485 private static final int RELEASE_SINGLE_TAP = 5; 486 private static final int REQUEST_FORM_DATA = 6; 487 private static final int RESUME_WEBCORE_PRIORITY = 7; 488 private static final int DRAG_HELD_MOTIONLESS = 8; 489 private static final int AWAKEN_SCROLL_BARS = 9; 490 491 //! arg1=x, arg2=y 492 static final int SCROLL_TO_MSG_ID = 10; 493 static final int SCROLL_BY_MSG_ID = 11; 494 //! arg1=x, arg2=y 495 static final int SPAWN_SCROLL_TO_MSG_ID = 12; 496 //! arg1=x, arg2=y 497 static final int SYNC_SCROLL_TO_MSG_ID = 13; 498 static final int NEW_PICTURE_MSG_ID = 14; 499 static final int UPDATE_TEXT_ENTRY_MSG_ID = 15; 500 static final int WEBCORE_INITIALIZED_MSG_ID = 16; 501 static final int UPDATE_TEXTFIELD_TEXT_MSG_ID = 17; 502 static final int UPDATE_ZOOM_RANGE = 18; 503 static final int MOVE_OUT_OF_PLUGIN = 19; 504 static final int CLEAR_TEXT_ENTRY = 20; 505 static final int UPDATE_TEXT_SELECTION_MSG_ID = 21; 506 static final int SHOW_RECT_MSG_ID = 22; 507 static final int LONG_PRESS_CENTER = 23; 508 static final int PREVENT_TOUCH_ID = 24; 509 static final int WEBCORE_NEED_TOUCH_EVENTS = 25; 510 // obj=Rect in doc coordinates 511 static final int INVAL_RECT_MSG_ID = 26; 512 static final int REQUEST_KEYBOARD = 27; 513 static final int DO_MOTION_UP = 28; 514 static final int SHOW_FULLSCREEN = 29; 515 static final int HIDE_FULLSCREEN = 30; 516 static final int DOM_FOCUS_CHANGED = 31; 517 static final int IMMEDIATE_REPAINT_MSG_ID = 32; 518 static final int SET_ROOT_LAYER_MSG_ID = 33; 519 static final int RETURN_LABEL = 34; 520 static final int FIND_AGAIN = 35; 521 522 static final String[] HandlerDebugString = { 523 "REMEMBER_PASSWORD", // = 1; 524 "NEVER_REMEMBER_PASSWORD", // = 2; 525 "SWITCH_TO_SHORTPRESS", // = 3; 526 "SWITCH_TO_LONGPRESS", // = 4; 527 "RELEASE_SINGLE_TAP", // = 5; 528 "REQUEST_FORM_DATA", // = 6; 529 "RESUME_WEBCORE_PRIORITY", // = 7; 530 "DRAG_HELD_MOTIONLESS", // = 8; 531 "AWAKEN_SCROLL_BARS", // = 9; 532 "SCROLL_TO_MSG_ID", // = 10; 533 "SCROLL_BY_MSG_ID", // = 11; 534 "SPAWN_SCROLL_TO_MSG_ID", // = 12; 535 "SYNC_SCROLL_TO_MSG_ID", // = 13; 536 "NEW_PICTURE_MSG_ID", // = 14; 537 "UPDATE_TEXT_ENTRY_MSG_ID", // = 15; 538 "WEBCORE_INITIALIZED_MSG_ID", // = 16; 539 "UPDATE_TEXTFIELD_TEXT_MSG_ID", // = 17; 540 "UPDATE_ZOOM_RANGE", // = 18; 541 "MOVE_OUT_OF_PLUGIN", // = 19; 542 "CLEAR_TEXT_ENTRY", // = 20; 543 "UPDATE_TEXT_SELECTION_MSG_ID", // = 21; 544 "SHOW_RECT_MSG_ID", // = 22; 545 "LONG_PRESS_CENTER", // = 23; 546 "PREVENT_TOUCH_ID", // = 24; 547 "WEBCORE_NEED_TOUCH_EVENTS", // = 25; 548 "INVAL_RECT_MSG_ID", // = 26; 549 "REQUEST_KEYBOARD", // = 27; 550 "DO_MOTION_UP", // = 28; 551 "SHOW_FULLSCREEN", // = 29; 552 "HIDE_FULLSCREEN", // = 30; 553 "DOM_FOCUS_CHANGED", // = 31; 554 "IMMEDIATE_REPAINT_MSG_ID", // = 32; 555 "SET_ROOT_LAYER_MSG_ID", // = 33; 556 "RETURN_LABEL", // = 34; 557 "FIND_AGAIN" // = 35; 558 }; 559 560 // If the site doesn't use the viewport meta tag to specify the viewport, 561 // use DEFAULT_VIEWPORT_WIDTH as the default viewport width 562 static final int DEFAULT_VIEWPORT_WIDTH = 800; 563 564 // normally we try to fit the content to the minimum preferred width 565 // calculated by the Webkit. To avoid the bad behavior when some site's 566 // minimum preferred width keeps growing when changing the viewport width or 567 // the minimum preferred width is huge, an upper limit is needed. 568 static int sMaxViewportWidth = DEFAULT_VIEWPORT_WIDTH; 569 570 // default scale limit. Depending on the display density 571 private static float DEFAULT_MAX_ZOOM_SCALE; 572 private static float DEFAULT_MIN_ZOOM_SCALE; 573 // scale limit, which can be set through viewport meta tag in the web page 574 private float mMaxZoomScale; 575 private float mMinZoomScale; 576 private boolean mMinZoomScaleFixed = true; 577 578 // initial scale in percent. 0 means using default. 579 private int mInitialScaleInPercent = 0; 580 581 // while in the zoom overview mode, the page's width is fully fit to the 582 // current window. The page is alive, in another words, you can click to 583 // follow the links. Double tap will toggle between zoom overview mode and 584 // the last zoom scale. 585 boolean mInZoomOverview = false; 586 587 // ideally mZoomOverviewWidth should be mContentWidth. But sites like espn, 588 // engadget always have wider mContentWidth no matter what viewport size is. 589 int mZoomOverviewWidth = DEFAULT_VIEWPORT_WIDTH; 590 float mTextWrapScale; 591 592 // default scale. Depending on the display density. 593 static int DEFAULT_SCALE_PERCENT; 594 private float mDefaultScale; 595 596 // set to true temporarily during ScaleGesture triggered zoom 597 private boolean mPreviewZoomOnly = false; 598 599 // computed scale and inverse, from mZoomWidth. 600 private float mActualScale; 601 private float mInvActualScale; 602 // if this is non-zero, it is used on drawing rather than mActualScale 603 private float mZoomScale; 604 private float mInvInitialZoomScale; 605 private float mInvFinalZoomScale; 606 private int mInitialScrollX; 607 private int mInitialScrollY; 608 private long mZoomStart; 609 private static final int ZOOM_ANIMATION_LENGTH = 500; 610 611 private boolean mUserScroll = false; 612 613 private int mSnapScrollMode = SNAP_NONE; 614 private static final int SNAP_NONE = 0; 615 private static final int SNAP_LOCK = 1; // not a separate state 616 private static final int SNAP_X = 2; // may be combined with SNAP_LOCK 617 private static final int SNAP_Y = 4; // may be combined with SNAP_LOCK 618 private boolean mSnapPositive; 619 620 // keep these in sync with their counterparts in WebView.cpp 621 private static final int DRAW_EXTRAS_NONE = 0; 622 private static final int DRAW_EXTRAS_FIND = 1; 623 private static final int DRAW_EXTRAS_SELECTION = 2; 624 private static final int DRAW_EXTRAS_CURSOR_RING = 3; 625 626 // Used to match key downs and key ups 627 private boolean mGotKeyDown; 628 629 /* package */ static boolean mLogEvent = true; 630 631 // for event log 632 private long mLastTouchUpTime = 0; 633 634 /** 635 * URI scheme for telephone number 636 */ 637 public static final String SCHEME_TEL = "tel:"; 638 /** 639 * URI scheme for email address 640 */ 641 public static final String SCHEME_MAILTO = "mailto:"; 642 /** 643 * URI scheme for map address 644 */ 645 public static final String SCHEME_GEO = "geo:0,0?q="; 646 647 private int mBackgroundColor = Color.WHITE; 648 649 // Used to notify listeners of a new picture. 650 private PictureListener mPictureListener; 651 /** 652 * Interface to listen for new pictures as they change. 653 */ 654 public interface PictureListener { 655 /** 656 * Notify the listener that the picture has changed. 657 * @param view The WebView that owns the picture. 658 * @param picture The new picture. 659 */ 660 public void onNewPicture(WebView view, Picture picture); 661 } 662 663 // FIXME: Want to make this public, but need to change the API file. 664 public /*static*/ class HitTestResult { 665 /** 666 * Default HitTestResult, where the target is unknown 667 */ 668 public static final int UNKNOWN_TYPE = 0; 669 /** 670 * HitTestResult for hitting a HTML::a tag 671 */ 672 public static final int ANCHOR_TYPE = 1; 673 /** 674 * HitTestResult for hitting a phone number 675 */ 676 public static final int PHONE_TYPE = 2; 677 /** 678 * HitTestResult for hitting a map address 679 */ 680 public static final int GEO_TYPE = 3; 681 /** 682 * HitTestResult for hitting an email address 683 */ 684 public static final int EMAIL_TYPE = 4; 685 /** 686 * HitTestResult for hitting an HTML::img tag 687 */ 688 public static final int IMAGE_TYPE = 5; 689 /** 690 * HitTestResult for hitting a HTML::a tag which contains HTML::img 691 */ 692 public static final int IMAGE_ANCHOR_TYPE = 6; 693 /** 694 * HitTestResult for hitting a HTML::a tag with src=http 695 */ 696 public static final int SRC_ANCHOR_TYPE = 7; 697 /** 698 * HitTestResult for hitting a HTML::a tag with src=http + HTML::img 699 */ 700 public static final int SRC_IMAGE_ANCHOR_TYPE = 8; 701 /** 702 * HitTestResult for hitting an edit text area 703 */ 704 public static final int EDIT_TEXT_TYPE = 9; 705 706 private int mType; 707 private String mExtra; 708 709 HitTestResult() { 710 mType = UNKNOWN_TYPE; 711 } 712 713 private void setType(int type) { 714 mType = type; 715 } 716 717 private void setExtra(String extra) { 718 mExtra = extra; 719 } 720 721 public int getType() { 722 return mType; 723 } 724 725 public String getExtra() { 726 return mExtra; 727 } 728 } 729 730 // The View containing the zoom controls 731 private ExtendedZoomControls mZoomControls; 732 private Runnable mZoomControlRunnable; 733 734 private ZoomButtonsController mZoomButtonsController; 735 736 // These keep track of the center point of the zoom. They are used to 737 // determine the point around which we should zoom. 738 private float mZoomCenterX; 739 private float mZoomCenterY; 740 741 private ZoomButtonsController.OnZoomListener mZoomListener = 742 new ZoomButtonsController.OnZoomListener() { 743 744 public void onVisibilityChanged(boolean visible) { 745 if (visible) { 746 switchOutDrawHistory(); 747 // Bring back the hidden zoom controls. 748 mZoomButtonsController.getZoomControls().setVisibility( 749 View.VISIBLE); 750 updateZoomButtonsEnabled(); 751 } 752 } 753 754 public void onZoom(boolean zoomIn) { 755 if (zoomIn) { 756 zoomIn(); 757 } else { 758 zoomOut(); 759 } 760 761 updateZoomButtonsEnabled(); 762 } 763 }; 764 765 /** 766 * Construct a new WebView with a Context object. 767 * @param context A Context object used to access application assets. 768 */ 769 public WebView(Context context) { 770 this(context, null); 771 } 772 773 /** 774 * Construct a new WebView with layout parameters. 775 * @param context A Context object used to access application assets. 776 * @param attrs An AttributeSet passed to our parent. 777 */ 778 public WebView(Context context, AttributeSet attrs) { 779 this(context, attrs, com.android.internal.R.attr.webViewStyle); 780 } 781 782 /** 783 * Construct a new WebView with layout parameters and a default style. 784 * @param context A Context object used to access application assets. 785 * @param attrs An AttributeSet passed to our parent. 786 * @param defStyle The default style resource ID. 787 */ 788 public WebView(Context context, AttributeSet attrs, int defStyle) { 789 this(context, attrs, defStyle, null); 790 } 791 792 /** 793 * Construct a new WebView with layout parameters, a default style and a set 794 * of custom Javscript interfaces to be added to the WebView at initialization 795 * time. This guarantees that these interfaces will be available when the JS 796 * context is initialized. 797 * @param context A Context object used to access application assets. 798 * @param attrs An AttributeSet passed to our parent. 799 * @param defStyle The default style resource ID. 800 * @param javascriptInterfaces is a Map of intareface names, as keys, and 801 * object implementing those interfaces, as values. 802 * @hide pending API council approval. 803 */ 804 protected WebView(Context context, AttributeSet attrs, int defStyle, 805 Map<String, Object> javascriptInterfaces) { 806 super(context, attrs, defStyle); 807 init(); 808 809 mCallbackProxy = new CallbackProxy(context, this); 810 mViewManager = new ViewManager(this); 811 mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javascriptInterfaces); 812 mDatabase = WebViewDatabase.getInstance(context); 813 mScroller = new Scroller(context); 814 815 mZoomButtonsController = new ZoomButtonsController(this); 816 mZoomButtonsController.setOnZoomListener(mZoomListener); 817 // ZoomButtonsController positions the buttons at the bottom, but in 818 // the middle. Change their layout parameters so they appear on the 819 // right. 820 View controls = mZoomButtonsController.getZoomControls(); 821 ViewGroup.LayoutParams params = controls.getLayoutParams(); 822 if (params instanceof FrameLayout.LayoutParams) { 823 FrameLayout.LayoutParams frameParams = (FrameLayout.LayoutParams) 824 params; 825 frameParams.gravity = Gravity.RIGHT; 826 } 827 updateMultiTouchSupport(context); 828 } 829 830 void updateMultiTouchSupport(Context context) { 831 WebSettings settings = getSettings(); 832 mSupportMultiTouch = context.getPackageManager().hasSystemFeature( 833 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH) 834 && settings.supportZoom() && settings.getBuiltInZoomControls(); 835 if (mSupportMultiTouch && (mScaleDetector == null)) { 836 mScaleDetector = new ScaleGestureDetector(context, 837 new ScaleDetectorListener()); 838 } else if (!mSupportMultiTouch && (mScaleDetector != null)) { 839 mScaleDetector = null; 840 } 841 } 842 843 private void updateZoomButtonsEnabled() { 844 boolean canZoomIn = mActualScale < mMaxZoomScale; 845 boolean canZoomOut = mActualScale > mMinZoomScale && !mInZoomOverview; 846 if (!canZoomIn && !canZoomOut) { 847 // Hide the zoom in and out buttons, as well as the fit to page 848 // button, if the page cannot zoom 849 mZoomButtonsController.getZoomControls().setVisibility(View.GONE); 850 } else { 851 // Set each one individually, as a page may be able to zoom in 852 // or out. 853 mZoomButtonsController.setZoomInEnabled(canZoomIn); 854 mZoomButtonsController.setZoomOutEnabled(canZoomOut); 855 } 856 } 857 858 private void init() { 859 setWillNotDraw(false); 860 setFocusable(true); 861 setFocusableInTouchMode(true); 862 setClickable(true); 863 setLongClickable(true); 864 865 final ViewConfiguration configuration = ViewConfiguration.get(getContext()); 866 int slop = configuration.getScaledTouchSlop(); 867 mTouchSlopSquare = slop * slop; 868 mMinLockSnapReverseDistance = slop; 869 slop = configuration.getScaledDoubleTapSlop(); 870 mDoubleTapSlopSquare = slop * slop; 871 final float density = getContext().getResources().getDisplayMetrics().density; 872 // use one line height, 16 based on our current default font, for how 873 // far we allow a touch be away from the edge of a link 874 mNavSlop = (int) (16 * density); 875 // density adjusted scale factors 876 DEFAULT_SCALE_PERCENT = (int) (100 * density); 877 mDefaultScale = density; 878 mActualScale = density; 879 mInvActualScale = 1 / density; 880 mTextWrapScale = density; 881 DEFAULT_MAX_ZOOM_SCALE = 4.0f * density; 882 DEFAULT_MIN_ZOOM_SCALE = 0.25f * density; 883 mMaxZoomScale = DEFAULT_MAX_ZOOM_SCALE; 884 mMinZoomScale = DEFAULT_MIN_ZOOM_SCALE; 885 mMaximumFling = configuration.getScaledMaximumFlingVelocity(); 886 } 887 888 /* package */void updateDefaultZoomDensity(int zoomDensity) { 889 final float density = getContext().getResources().getDisplayMetrics().density 890 * 100 / zoomDensity; 891 if (Math.abs(density - mDefaultScale) > 0.01) { 892 float scaleFactor = density / mDefaultScale; 893 // adjust the limits 894 mNavSlop = (int) (16 * density); 895 DEFAULT_SCALE_PERCENT = (int) (100 * density); 896 DEFAULT_MAX_ZOOM_SCALE = 4.0f * density; 897 DEFAULT_MIN_ZOOM_SCALE = 0.25f * density; 898 mDefaultScale = density; 899 mMaxZoomScale *= scaleFactor; 900 mMinZoomScale *= scaleFactor; 901 setNewZoomScale(mActualScale * scaleFactor, true, false); 902 } 903 } 904 905 /* package */ boolean onSavePassword(String schemePlusHost, String username, 906 String password, final Message resumeMsg) { 907 boolean rVal = false; 908 if (resumeMsg == null) { 909 // null resumeMsg implies saving password silently 910 mDatabase.setUsernamePassword(schemePlusHost, username, password); 911 } else { 912 final Message remember = mPrivateHandler.obtainMessage( 913 REMEMBER_PASSWORD); 914 remember.getData().putString("host", schemePlusHost); 915 remember.getData().putString("username", username); 916 remember.getData().putString("password", password); 917 remember.obj = resumeMsg; 918 919 final Message neverRemember = mPrivateHandler.obtainMessage( 920 NEVER_REMEMBER_PASSWORD); 921 neverRemember.getData().putString("host", schemePlusHost); 922 neverRemember.getData().putString("username", username); 923 neverRemember.getData().putString("password", password); 924 neverRemember.obj = resumeMsg; 925 926 new AlertDialog.Builder(getContext()) 927 .setTitle(com.android.internal.R.string.save_password_label) 928 .setMessage(com.android.internal.R.string.save_password_message) 929 .setPositiveButton(com.android.internal.R.string.save_password_notnow, 930 new DialogInterface.OnClickListener() { 931 public void onClick(DialogInterface dialog, int which) { 932 resumeMsg.sendToTarget(); 933 } 934 }) 935 .setNeutralButton(com.android.internal.R.string.save_password_remember, 936 new DialogInterface.OnClickListener() { 937 public void onClick(DialogInterface dialog, int which) { 938 remember.sendToTarget(); 939 } 940 }) 941 .setNegativeButton(com.android.internal.R.string.save_password_never, 942 new DialogInterface.OnClickListener() { 943 public void onClick(DialogInterface dialog, int which) { 944 neverRemember.sendToTarget(); 945 } 946 }) 947 .setOnCancelListener(new OnCancelListener() { 948 public void onCancel(DialogInterface dialog) { 949 resumeMsg.sendToTarget(); 950 } 951 }).show(); 952 // Return true so that WebViewCore will pause while the dialog is 953 // up. 954 rVal = true; 955 } 956 return rVal; 957 } 958 959 @Override 960 public void setScrollBarStyle(int style) { 961 if (style == View.SCROLLBARS_INSIDE_INSET 962 || style == View.SCROLLBARS_OUTSIDE_INSET) { 963 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = false; 964 } else { 965 mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = true; 966 } 967 super.setScrollBarStyle(style); 968 } 969 970 /** 971 * Specify whether the horizontal scrollbar has overlay style. 972 * @param overlay TRUE if horizontal scrollbar should have overlay style. 973 */ 974 public void setHorizontalScrollbarOverlay(boolean overlay) { 975 mOverlayHorizontalScrollbar = overlay; 976 } 977 978 /** 979 * Specify whether the vertical scrollbar has overlay style. 980 * @param overlay TRUE if vertical scrollbar should have overlay style. 981 */ 982 public void setVerticalScrollbarOverlay(boolean overlay) { 983 mOverlayVerticalScrollbar = overlay; 984 } 985 986 /** 987 * Return whether horizontal scrollbar has overlay style 988 * @return TRUE if horizontal scrollbar has overlay style. 989 */ 990 public boolean overlayHorizontalScrollbar() { 991 return mOverlayHorizontalScrollbar; 992 } 993 994 /** 995 * Return whether vertical scrollbar has overlay style 996 * @return TRUE if vertical scrollbar has overlay style. 997 */ 998 public boolean overlayVerticalScrollbar() { 999 return mOverlayVerticalScrollbar; 1000 } 1001 1002 /* 1003 * Return the width of the view where the content of WebView should render 1004 * to. 1005 * Note: this can be called from WebCoreThread. 1006 */ 1007 /* package */ int getViewWidth() { 1008 if (!isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) { 1009 return getWidth(); 1010 } else { 1011 return getWidth() - getVerticalScrollbarWidth(); 1012 } 1013 } 1014 1015 /* 1016 * returns the height of the titlebarview (if any). Does not care about 1017 * scrolling 1018 */ 1019 private int getTitleHeight() { 1020 return mTitleBar != null ? mTitleBar.getHeight() : 0; 1021 } 1022 1023 /* 1024 * Return the amount of the titlebarview (if any) that is visible 1025 */ 1026 private int getVisibleTitleHeight() { 1027 return Math.max(getTitleHeight() - mScrollY, 0); 1028 } 1029 1030 /* 1031 * Return the height of the view where the content of WebView should render 1032 * to. Note that this excludes mTitleBar, if there is one. 1033 * Note: this can be called from WebCoreThread. 1034 */ 1035 /* package */ int getViewHeight() { 1036 return getViewHeightWithTitle() - getVisibleTitleHeight(); 1037 } 1038 1039 private int getViewHeightWithTitle() { 1040 int height = getHeight(); 1041 if (isHorizontalScrollBarEnabled() && !mOverlayHorizontalScrollbar) { 1042 height -= getHorizontalScrollbarHeight(); 1043 } 1044 return height; 1045 } 1046 1047 /** 1048 * @return The SSL certificate for the main top-level page or null if 1049 * there is no certificate (the site is not secure). 1050 */ 1051 public SslCertificate getCertificate() { 1052 return mCertificate; 1053 } 1054 1055 /** 1056 * Sets the SSL certificate for the main top-level page. 1057 */ 1058 public void setCertificate(SslCertificate certificate) { 1059 // here, the certificate can be null (if the site is not secure) 1060 mCertificate = certificate; 1061 } 1062 1063 //------------------------------------------------------------------------- 1064 // Methods called by activity 1065 //------------------------------------------------------------------------- 1066 1067 /** 1068 * Save the username and password for a particular host in the WebView's 1069 * internal database. 1070 * @param host The host that required the credentials. 1071 * @param username The username for the given host. 1072 * @param password The password for the given host. 1073 */ 1074 public void savePassword(String host, String username, String password) { 1075 mDatabase.setUsernamePassword(host, username, password); 1076 } 1077 1078 /** 1079 * Set the HTTP authentication credentials for a given host and realm. 1080 * 1081 * @param host The host for the credentials. 1082 * @param realm The realm for the credentials. 1083 * @param username The username for the password. If it is null, it means 1084 * password can't be saved. 1085 * @param password The password 1086 */ 1087 public void setHttpAuthUsernamePassword(String host, String realm, 1088 String username, String password) { 1089 mDatabase.setHttpAuthUsernamePassword(host, realm, username, password); 1090 } 1091 1092 /** 1093 * Retrieve the HTTP authentication username and password for a given 1094 * host & realm pair 1095 * 1096 * @param host The host for which the credentials apply. 1097 * @param realm The realm for which the credentials apply. 1098 * @return String[] if found, String[0] is username, which can be null and 1099 * String[1] is password. Return null if it can't find anything. 1100 */ 1101 public String[] getHttpAuthUsernamePassword(String host, String realm) { 1102 return mDatabase.getHttpAuthUsernamePassword(host, realm); 1103 } 1104 1105 /** 1106 * Destroy the internal state of the WebView. This method should be called 1107 * after the WebView has been removed from the view system. No other 1108 * methods may be called on a WebView after destroy. 1109 */ 1110 public void destroy() { 1111 clearTextEntry(false); 1112 if (mWebViewCore != null) { 1113 // Set the handlers to null before destroying WebViewCore so no 1114 // more messages will be posted. 1115 mCallbackProxy.setWebViewClient(null); 1116 mCallbackProxy.setWebChromeClient(null); 1117 // Tell WebViewCore to destroy itself 1118 WebViewCore webViewCore = mWebViewCore; 1119 mWebViewCore = null; // prevent using partial webViewCore 1120 webViewCore.destroy(); 1121 // Remove any pending messages that might not be serviced yet. 1122 mPrivateHandler.removeCallbacksAndMessages(null); 1123 mCallbackProxy.removeCallbacksAndMessages(null); 1124 // Wake up the WebCore thread just in case it is waiting for a 1125 // javascript dialog. 1126 synchronized (mCallbackProxy) { 1127 mCallbackProxy.notify(); 1128 } 1129 } 1130 if (mNativeClass != 0) { 1131 nativeDestroy(); 1132 mNativeClass = 0; 1133 } 1134 } 1135 1136 /** 1137 * Enables platform notifications of data state and proxy changes. 1138 */ 1139 public static void enablePlatformNotifications() { 1140 Network.enablePlatformNotifications(); 1141 } 1142 1143 /** 1144 * If platform notifications are enabled, this should be called 1145 * from the Activity's onPause() or onStop(). 1146 */ 1147 public static void disablePlatformNotifications() { 1148 Network.disablePlatformNotifications(); 1149 } 1150 1151 /** 1152 * Sets JavaScript engine flags. 1153 * 1154 * @param flags JS engine flags in a String 1155 * 1156 * @hide pending API solidification 1157 */ 1158 public void setJsFlags(String flags) { 1159 mWebViewCore.sendMessage(EventHub.SET_JS_FLAGS, flags); 1160 } 1161 1162 /** 1163 * Inform WebView of the network state. This is used to set 1164 * the javascript property window.navigator.isOnline and 1165 * generates the online/offline event as specified in HTML5, sec. 5.7.7 1166 * @param networkUp boolean indicating if network is available 1167 */ 1168 public void setNetworkAvailable(boolean networkUp) { 1169 mWebViewCore.sendMessage(EventHub.SET_NETWORK_STATE, 1170 networkUp ? 1 : 0, 0); 1171 } 1172 1173 /** 1174 * Inform WebView about the current network type. 1175 * {@hide} 1176 */ 1177 public void setNetworkType(String type, String subtype) { 1178 Map<String, String> map = new HashMap<String, String>(); 1179 map.put("type", type); 1180 map.put("subtype", subtype); 1181 mWebViewCore.sendMessage(EventHub.SET_NETWORK_TYPE, map); 1182 } 1183 /** 1184 * Save the state of this WebView used in 1185 * {@link android.app.Activity#onSaveInstanceState}. Please note that this 1186 * method no longer stores the display data for this WebView. The previous 1187 * behavior could potentially leak files if {@link #restoreState} was never 1188 * called. See {@link #savePicture} and {@link #restorePicture} for saving 1189 * and restoring the display data. 1190 * @param outState The Bundle to store the WebView state. 1191 * @return The same copy of the back/forward list used to save the state. If 1192 * saveState fails, the returned list will be null. 1193 * @see #savePicture 1194 * @see #restorePicture 1195 */ 1196 public WebBackForwardList saveState(Bundle outState) { 1197 if (outState == null) { 1198 return null; 1199 } 1200 // We grab a copy of the back/forward list because a client of WebView 1201 // may have invalidated the history list by calling clearHistory. 1202 WebBackForwardList list = copyBackForwardList(); 1203 final int currentIndex = list.getCurrentIndex(); 1204 final int size = list.getSize(); 1205 // We should fail saving the state if the list is empty or the index is 1206 // not in a valid range. 1207 if (currentIndex < 0 || currentIndex >= size || size == 0) { 1208 return null; 1209 } 1210 outState.putInt("index", currentIndex); 1211 // FIXME: This should just be a byte[][] instead of ArrayList but 1212 // Parcel.java does not have the code to handle multi-dimensional 1213 // arrays. 1214 ArrayList<byte[]> history = new ArrayList<byte[]>(size); 1215 for (int i = 0; i < size; i++) { 1216 WebHistoryItem item = list.getItemAtIndex(i); 1217 if (null == item) { 1218 // FIXME: this shouldn't happen 1219 // need to determine how item got set to null 1220 Log.w(LOGTAG, "saveState: Unexpected null history item."); 1221 return null; 1222 } 1223 byte[] data = item.getFlattenedData(); 1224 if (data == null) { 1225 // It would be very odd to not have any data for a given history 1226 // item. And we will fail to rebuild the history list without 1227 // flattened data. 1228 return null; 1229 } 1230 history.add(data); 1231 } 1232 outState.putSerializable("history", history); 1233 if (mCertificate != null) { 1234 outState.putBundle("certificate", 1235 SslCertificate.saveState(mCertificate)); 1236 } 1237 return list; 1238 } 1239 1240 /** 1241 * Save the current display data to the Bundle given. Used in conjunction 1242 * with {@link #saveState}. 1243 * @param b A Bundle to store the display data. 1244 * @param dest The file to store the serialized picture data. Will be 1245 * overwritten with this WebView's picture data. 1246 * @return True if the picture was successfully saved. 1247 */ 1248 public boolean savePicture(Bundle b, File dest) { 1249 if (dest == null || b == null) { 1250 return false; 1251 } 1252 final Picture p = capturePicture(); 1253 try { 1254 final FileOutputStream out = new FileOutputStream(dest); 1255 p.writeToStream(out); 1256 out.close(); 1257 } catch (FileNotFoundException e){ 1258 e.printStackTrace(); 1259 } catch (IOException e) { 1260 e.printStackTrace(); 1261 } catch (RuntimeException e) { 1262 e.printStackTrace(); 1263 } 1264 if (dest.length() > 0) { 1265 b.putInt("scrollX", mScrollX); 1266 b.putInt("scrollY", mScrollY); 1267 b.putFloat("scale", mActualScale); 1268 b.putFloat("textwrapScale", mTextWrapScale); 1269 b.putBoolean("overview", mInZoomOverview); 1270 return true; 1271 } 1272 return false; 1273 } 1274 1275 /** 1276 * Restore the display data that was save in {@link #savePicture}. Used in 1277 * conjunction with {@link #restoreState}. 1278 * @param b A Bundle containing the saved display data. 1279 * @param src The file where the picture data was stored. 1280 * @return True if the picture was successfully restored. 1281 */ 1282 public boolean restorePicture(Bundle b, File src) { 1283 if (src == null || b == null) { 1284 return false; 1285 } 1286 if (src.exists()) { 1287 Picture p = null; 1288 try { 1289 final FileInputStream in = new FileInputStream(src); 1290 p = Picture.createFromStream(in); 1291 in.close(); 1292 } catch (FileNotFoundException e){ 1293 e.printStackTrace(); 1294 } catch (RuntimeException e) { 1295 e.printStackTrace(); 1296 } catch (IOException e) { 1297 e.printStackTrace(); 1298 } 1299 if (p != null) { 1300 int sx = b.getInt("scrollX", 0); 1301 int sy = b.getInt("scrollY", 0); 1302 float scale = b.getFloat("scale", 1.0f); 1303 mDrawHistory = true; 1304 mHistoryPicture = p; 1305 mScrollX = sx; 1306 mScrollY = sy; 1307 mHistoryWidth = Math.round(p.getWidth() * scale); 1308 mHistoryHeight = Math.round(p.getHeight() * scale); 1309 // as getWidth() / getHeight() of the view are not 1310 // available yet, set up mActualScale, so that when 1311 // onSizeChanged() is called, the rest will be set 1312 // correctly 1313 mActualScale = scale; 1314 mInvActualScale = 1 / scale; 1315 mTextWrapScale = b.getFloat("textwrapScale", scale); 1316 mInZoomOverview = b.getBoolean("overview"); 1317 invalidate(); 1318 return true; 1319 } 1320 } 1321 return false; 1322 } 1323 1324 /** 1325 * Restore the state of this WebView from the given map used in 1326 * {@link android.app.Activity#onRestoreInstanceState}. This method should 1327 * be called to restore the state of the WebView before using the object. If 1328 * it is called after the WebView has had a chance to build state (load 1329 * pages, create a back/forward list, etc.) there may be undesirable 1330 * side-effects. Please note that this method no longer restores the 1331 * display data for this WebView. See {@link #savePicture} and {@link 1332 * #restorePicture} for saving and restoring the display data. 1333 * @param inState The incoming Bundle of state. 1334 * @return The restored back/forward list or null if restoreState failed. 1335 * @see #savePicture 1336 * @see #restorePicture 1337 */ 1338 public WebBackForwardList restoreState(Bundle inState) { 1339 WebBackForwardList returnList = null; 1340 if (inState == null) { 1341 return returnList; 1342 } 1343 if (inState.containsKey("index") && inState.containsKey("history")) { 1344 mCertificate = SslCertificate.restoreState( 1345 inState.getBundle("certificate")); 1346 1347 final WebBackForwardList list = mCallbackProxy.getBackForwardList(); 1348 final int index = inState.getInt("index"); 1349 // We can't use a clone of the list because we need to modify the 1350 // shared copy, so synchronize instead to prevent concurrent 1351 // modifications. 1352 synchronized (list) { 1353 final List<byte[]> history = 1354 (List<byte[]>) inState.getSerializable("history"); 1355 final int size = history.size(); 1356 // Check the index bounds so we don't crash in native code while 1357 // restoring the history index. 1358 if (index < 0 || index >= size) { 1359 return null; 1360 } 1361 for (int i = 0; i < size; i++) { 1362 byte[] data = history.remove(0); 1363 if (data == null) { 1364 // If we somehow have null data, we cannot reconstruct 1365 // the item and thus our history list cannot be rebuilt. 1366 return null; 1367 } 1368 WebHistoryItem item = new WebHistoryItem(data); 1369 list.addHistoryItem(item); 1370 } 1371 // Grab the most recent copy to return to the caller. 1372 returnList = copyBackForwardList(); 1373 // Update the copy to have the correct index. 1374 returnList.setCurrentIndex(index); 1375 } 1376 // Remove all pending messages because we are restoring previous 1377 // state. 1378 mWebViewCore.removeMessages(); 1379 // Send a restore state message. 1380 mWebViewCore.sendMessage(EventHub.RESTORE_STATE, index); 1381 } 1382 return returnList; 1383 } 1384 1385 /** 1386 * Load the given url with the extra headers. 1387 * @param url The url of the resource to load. 1388 * @param extraHeaders The extra headers sent with this url. This should not 1389 * include the common headers like "user-agent". If it does, it 1390 * will be replaced by the intrinsic value of the WebView. 1391 */ 1392 public void loadUrl(String url, Map<String, String> extraHeaders) { 1393 switchOutDrawHistory(); 1394 WebViewCore.GetUrlData arg = new WebViewCore.GetUrlData(); 1395 arg.mUrl = url; 1396 arg.mExtraHeaders = extraHeaders; 1397 mWebViewCore.sendMessage(EventHub.LOAD_URL, arg); 1398 clearTextEntry(false); 1399 } 1400 1401 /** 1402 * Load the given url. 1403 * @param url The url of the resource to load. 1404 */ 1405 public void loadUrl(String url) { 1406 if (url == null) { 1407 return; 1408 } 1409 loadUrl(url, null); 1410 } 1411 1412 /** 1413 * Load the url with postData using "POST" method into the WebView. If url 1414 * is not a network url, it will be loaded with {link 1415 * {@link #loadUrl(String)} instead. 1416 * 1417 * @param url The url of the resource to load. 1418 * @param postData The data will be passed to "POST" request. 1419 */ 1420 public void postUrl(String url, byte[] postData) { 1421 if (URLUtil.isNetworkUrl(url)) { 1422 switchOutDrawHistory(); 1423 WebViewCore.PostUrlData arg = new WebViewCore.PostUrlData(); 1424 arg.mUrl = url; 1425 arg.mPostData = postData; 1426 mWebViewCore.sendMessage(EventHub.POST_URL, arg); 1427 clearTextEntry(false); 1428 } else { 1429 loadUrl(url); 1430 } 1431 } 1432 1433 /** 1434 * Load the given data into the WebView. This will load the data into 1435 * WebView using the data: scheme. Content loaded through this mechanism 1436 * does not have the ability to load content from the network. 1437 * @param data A String of data in the given encoding. 1438 * @param mimeType The MIMEType of the data. i.e. text/html, image/jpeg 1439 * @param encoding The encoding of the data. i.e. utf-8, base64 1440 */ 1441 public void loadData(String data, String mimeType, String encoding) { 1442 loadUrl("data:" + mimeType + ";" + encoding + "," + data); 1443 } 1444 1445 /** 1446 * Load the given data into the WebView, use the provided URL as the base 1447 * URL for the content. The base URL is the URL that represents the page 1448 * that is loaded through this interface. As such, it is used for the 1449 * history entry and to resolve any relative URLs. The failUrl is used if 1450 * browser fails to load the data provided. If it is empty or null, and the 1451 * load fails, then no history entry is created. 1452 * <p> 1453 * Note for post 1.0. Due to the change in the WebKit, the access to asset 1454 * files through "file:///android_asset/" for the sub resources is more 1455 * restricted. If you provide null or empty string as baseUrl, you won't be 1456 * able to access asset files. If the baseUrl is anything other than 1457 * http(s)/ftp(s)/about/javascript as scheme, you can access asset files for 1458 * sub resources. 1459 * 1460 * @param baseUrl Url to resolve relative paths with, if null defaults to 1461 * "about:blank" 1462 * @param data A String of data in the given encoding. 1463 * @param mimeType The MIMEType of the data. i.e. text/html. If null, 1464 * defaults to "text/html" 1465 * @param encoding The encoding of the data. i.e. utf-8, us-ascii 1466 * @param failUrl URL to use if the content fails to load or null. 1467 */ 1468 public void loadDataWithBaseURL(String baseUrl, String data, 1469 String mimeType, String encoding, String failUrl) { 1470 1471 if (baseUrl != null && baseUrl.toLowerCase().startsWith("data:")) { 1472 loadData(data, mimeType, encoding); 1473 return; 1474 } 1475 switchOutDrawHistory(); 1476 WebViewCore.BaseUrlData arg = new WebViewCore.BaseUrlData(); 1477 arg.mBaseUrl = baseUrl; 1478 arg.mData = data; 1479 arg.mMimeType = mimeType; 1480 arg.mEncoding = encoding; 1481 arg.mFailUrl = failUrl; 1482 mWebViewCore.sendMessage(EventHub.LOAD_DATA, arg); 1483 clearTextEntry(false); 1484 } 1485 1486 /** 1487 * Stop the current load. 1488 */ 1489 public void stopLoading() { 1490 // TODO: should we clear all the messages in the queue before sending 1491 // STOP_LOADING? 1492 switchOutDrawHistory(); 1493 mWebViewCore.sendMessage(EventHub.STOP_LOADING); 1494 } 1495 1496 /** 1497 * Reload the current url. 1498 */ 1499 public void reload() { 1500 clearTextEntry(false); 1501 switchOutDrawHistory(); 1502 mWebViewCore.sendMessage(EventHub.RELOAD); 1503 } 1504 1505 /** 1506 * Return true if this WebView has a back history item. 1507 * @return True iff this WebView has a back history item. 1508 */ 1509 public boolean canGoBack() { 1510 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 1511 synchronized (l) { 1512 if (l.getClearPending()) { 1513 return false; 1514 } else { 1515 return l.getCurrentIndex() > 0; 1516 } 1517 } 1518 } 1519 1520 /** 1521 * Go back in the history of this WebView. 1522 */ 1523 public void goBack() { 1524 goBackOrForward(-1); 1525 } 1526 1527 /** 1528 * Return true if this WebView has a forward history item. 1529 * @return True iff this Webview has a forward history item. 1530 */ 1531 public boolean canGoForward() { 1532 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 1533 synchronized (l) { 1534 if (l.getClearPending()) { 1535 return false; 1536 } else { 1537 return l.getCurrentIndex() < l.getSize() - 1; 1538 } 1539 } 1540 } 1541 1542 /** 1543 * Go forward in the history of this WebView. 1544 */ 1545 public void goForward() { 1546 goBackOrForward(1); 1547 } 1548 1549 /** 1550 * Return true if the page can go back or forward the given 1551 * number of steps. 1552 * @param steps The negative or positive number of steps to move the 1553 * history. 1554 */ 1555 public boolean canGoBackOrForward(int steps) { 1556 WebBackForwardList l = mCallbackProxy.getBackForwardList(); 1557 synchronized (l) { 1558 if (l.getClearPending()) { 1559 return false; 1560 } else { 1561 int newIndex = l.getCurrentIndex() + steps; 1562 return newIndex >= 0 && newIndex < l.getSize(); 1563 } 1564 } 1565 } 1566 1567 /** 1568 * Go to the history item that is the number of steps away from 1569 * the current item. Steps is negative if backward and positive 1570 * if forward. 1571 * @param steps The number of steps to take back or forward in the back 1572 * forward list. 1573 */ 1574 public void goBackOrForward(int steps) { 1575 goBackOrForward(steps, false); 1576 } 1577 1578 private void goBackOrForward(int steps, boolean ignoreSnapshot) { 1579 // every time we go back or forward, we want to reset the 1580 // WebView certificate: 1581 // if the new site is secure, we will reload it and get a 1582 // new certificate set; 1583 // if the new site is not secure, the certificate must be 1584 // null, and that will be the case 1585 mCertificate = null; 1586 if (steps != 0) { 1587 clearTextEntry(false); 1588 mWebViewCore.sendMessage(EventHub.GO_BACK_FORWARD, steps, 1589 ignoreSnapshot ? 1 : 0); 1590 } 1591 } 1592 1593 private boolean extendScroll(int y) { 1594 int finalY = mScroller.getFinalY(); 1595 int newY = pinLocY(finalY + y); 1596 if (newY == finalY) return false; 1597 mScroller.setFinalY(newY); 1598 mScroller.extendDuration(computeDuration(0, y)); 1599 return true; 1600 } 1601 1602 /** 1603 * Scroll the contents of the view up by half the view size 1604 * @param top true to jump to the top of the page 1605 * @return true if the page was scrolled 1606 */ 1607 public boolean pageUp(boolean top) { 1608 if (mNativeClass == 0) { 1609 return false; 1610 } 1611 nativeClearCursor(); // start next trackball movement from page edge 1612 if (top) { 1613 // go to the top of the document 1614 return pinScrollTo(mScrollX, 0, true, 0); 1615 } 1616 // Page up 1617 int h = getHeight(); 1618 int y; 1619 if (h > 2 * PAGE_SCROLL_OVERLAP) { 1620 y = -h + PAGE_SCROLL_OVERLAP; 1621 } else { 1622 y = -h / 2; 1623 } 1624 mUserScroll = true; 1625 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 1626 : extendScroll(y); 1627 } 1628 1629 /** 1630 * Scroll the contents of the view down by half the page size 1631 * @param bottom true to jump to bottom of page 1632 * @return true if the page was scrolled 1633 */ 1634 public boolean pageDown(boolean bottom) { 1635 if (mNativeClass == 0) { 1636 return false; 1637 } 1638 nativeClearCursor(); // start next trackball movement from page edge 1639 if (bottom) { 1640 return pinScrollTo(mScrollX, computeVerticalScrollRange(), true, 0); 1641 } 1642 // Page down. 1643 int h = getHeight(); 1644 int y; 1645 if (h > 2 * PAGE_SCROLL_OVERLAP) { 1646 y = h - PAGE_SCROLL_OVERLAP; 1647 } else { 1648 y = h / 2; 1649 } 1650 mUserScroll = true; 1651 return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) 1652 : extendScroll(y); 1653 } 1654 1655 /** 1656 * Clear the view so that onDraw() will draw nothing but white background, 1657 * and onMeasure() will return 0 if MeasureSpec is not MeasureSpec.EXACTLY 1658 */ 1659 public void clearView() { 1660 mContentWidth = 0; 1661 mContentHeight = 0; 1662 mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); 1663 } 1664 1665 /** 1666 * Return a new picture that captures the current display of the webview. 1667 * This is a copy of the display, and will be unaffected if the webview 1668 * later loads a different URL. 1669 * 1670 * @return a picture containing the current contents of the view. Note this 1671 * picture is of the entire document, and is not restricted to the 1672 * bounds of the view. 1673 */ 1674 public Picture capturePicture() { 1675 if (null == mWebViewCore) return null; // check for out of memory tab 1676 return mWebViewCore.copyContentPicture(); 1677 } 1678 1679 /** 1680 * Return true if the browser is displaying a TextView for text input. 1681 */ 1682 private boolean inEditingMode() { 1683 return mWebTextView != null && mWebTextView.getParent() != null 1684 && mWebTextView.hasFocus(); 1685 } 1686 1687 /** 1688 * Remove the WebTextView. 1689 * @param disableFocusController If true, send a message to webkit 1690 * disabling the focus controller, so the caret stops blinking. 1691 */ 1692 private void clearTextEntry(boolean disableFocusController) { 1693 if (inEditingMode()) { 1694 mWebTextView.remove(); 1695 if (disableFocusController) { 1696 setFocusControllerInactive(); 1697 } 1698 } 1699 } 1700 1701 /** 1702 * Return the current scale of the WebView 1703 * @return The current scale. 1704 */ 1705 public float getScale() { 1706 return mActualScale; 1707 } 1708 1709 /** 1710 * Set the initial scale for the WebView. 0 means default. If 1711 * {@link WebSettings#getUseWideViewPort()} is true, it zooms out all the 1712 * way. Otherwise it starts with 100%. If initial scale is greater than 0, 1713 * WebView starts will this value as initial scale. 1714 * 1715 * @param scaleInPercent The initial scale in percent. 1716 */ 1717 public void setInitialScale(int scaleInPercent) { 1718 mInitialScaleInPercent = scaleInPercent; 1719 } 1720 1721 /** 1722 * Invoke the graphical zoom picker widget for this WebView. This will 1723 * result in the zoom widget appearing on the screen to control the zoom 1724 * level of this WebView. 1725 */ 1726 public void invokeZoomPicker() { 1727 if (!getSettings().supportZoom()) { 1728 Log.w(LOGTAG, "This WebView doesn't support zoom."); 1729 return; 1730 } 1731 clearTextEntry(false); 1732 if (getSettings().getBuiltInZoomControls()) { 1733 mZoomButtonsController.setVisible(true); 1734 } else { 1735 mPrivateHandler.removeCallbacks(mZoomControlRunnable); 1736 mPrivateHandler.postDelayed(mZoomControlRunnable, 1737 ZOOM_CONTROLS_TIMEOUT); 1738 } 1739 } 1740 1741 /** 1742 * Return a HitTestResult based on the current cursor node. If a HTML::a tag 1743 * is found and the anchor has a non-javascript url, the HitTestResult type 1744 * is set to SRC_ANCHOR_TYPE and the url is set in the "extra" field. If the 1745 * anchor does not have a url or if it is a javascript url, the type will 1746 * be UNKNOWN_TYPE and the url has to be retrieved through 1747 * {@link #requestFocusNodeHref} asynchronously. If a HTML::img tag is 1748 * found, the HitTestResult type is set to IMAGE_TYPE and the url is set in 1749 * the "extra" field. A type of 1750 * SRC_IMAGE_ANCHOR_TYPE indicates an anchor with a url that has an image as 1751 * a child node. If a phone number is found, the HitTestResult type is set 1752 * to PHONE_TYPE and the phone number is set in the "extra" field of 1753 * HitTestResult. If a map address is found, the HitTestResult type is set 1754 * to GEO_TYPE and the address is set in the "extra" field of HitTestResult. 1755 * If an email address is found, the HitTestResult type is set to EMAIL_TYPE 1756 * and the email is set in the "extra" field of HitTestResult. Otherwise, 1757 * HitTestResult type is set to UNKNOWN_TYPE. 1758 */ 1759 public HitTestResult getHitTestResult() { 1760 if (mNativeClass == 0) { 1761 return null; 1762 } 1763 1764 HitTestResult result = new HitTestResult(); 1765 if (nativeHasCursorNode()) { 1766 if (nativeCursorIsTextInput()) { 1767 result.setType(HitTestResult.EDIT_TEXT_TYPE); 1768 } else { 1769 String text = nativeCursorText(); 1770 if (text != null) { 1771 if (text.startsWith(SCHEME_TEL)) { 1772 result.setType(HitTestResult.PHONE_TYPE); 1773 result.setExtra(text.substring(SCHEME_TEL.length())); 1774 } else if (text.startsWith(SCHEME_MAILTO)) { 1775 result.setType(HitTestResult.EMAIL_TYPE); 1776 result.setExtra(text.substring(SCHEME_MAILTO.length())); 1777 } else if (text.startsWith(SCHEME_GEO)) { 1778 result.setType(HitTestResult.GEO_TYPE); 1779 result.setExtra(URLDecoder.decode(text 1780 .substring(SCHEME_GEO.length()))); 1781 } else if (nativeCursorIsAnchor()) { 1782 result.setType(HitTestResult.SRC_ANCHOR_TYPE); 1783 result.setExtra(text); 1784 } 1785 } 1786 } 1787 } 1788 int type = result.getType(); 1789 if (type == HitTestResult.UNKNOWN_TYPE 1790 || type == HitTestResult.SRC_ANCHOR_TYPE) { 1791 // Now check to see if it is an image. 1792 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 1793 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 1794 String text = nativeImageURI(contentX, contentY); 1795 if (text != null) { 1796 result.setType(type == HitTestResult.UNKNOWN_TYPE ? 1797 HitTestResult.IMAGE_TYPE : 1798 HitTestResult.SRC_IMAGE_ANCHOR_TYPE); 1799 result.setExtra(text); 1800 } 1801 } 1802 return result; 1803 } 1804 1805 // Called by JNI when the DOM has changed the focus. Clear the focus so 1806 // that new keys will go to the newly focused field 1807 private void domChangedFocus() { 1808 if (inEditingMode()) { 1809 mPrivateHandler.obtainMessage(DOM_FOCUS_CHANGED).sendToTarget(); 1810 } 1811 } 1812 /** 1813 * Request the href of an anchor element due to getFocusNodePath returning 1814 * "href." If hrefMsg is null, this method returns immediately and does not 1815 * dispatch hrefMsg to its target. 1816 * 1817 * @param hrefMsg This message will be dispatched with the result of the 1818 * request as the data member with "url" as key. The result can 1819 * be null. 1820 */ 1821 // FIXME: API change required to change the name of this function. We now 1822 // look at the cursor node, and not the focus node. Also, what is 1823 // getFocusNodePath? 1824 public void requestFocusNodeHref(Message hrefMsg) { 1825 if (hrefMsg == null || mNativeClass == 0) { 1826 return; 1827 } 1828 if (nativeCursorIsAnchor()) { 1829 mWebViewCore.sendMessage(EventHub.REQUEST_CURSOR_HREF, 1830 nativeCursorFramePointer(), nativeCursorNodePointer(), 1831 hrefMsg); 1832 } 1833 } 1834 1835 /** 1836 * Request the url of the image last touched by the user. msg will be sent 1837 * to its target with a String representing the url as its object. 1838 * 1839 * @param msg This message will be dispatched with the result of the request 1840 * as the data member with "url" as key. The result can be null. 1841 */ 1842 public void requestImageRef(Message msg) { 1843 if (0 == mNativeClass) return; // client isn't initialized 1844 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 1845 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 1846 String ref = nativeImageURI(contentX, contentY); 1847 Bundle data = msg.getData(); 1848 data.putString("url", ref); 1849 msg.setData(data); 1850 msg.sendToTarget(); 1851 } 1852 1853 private static int pinLoc(int x, int viewMax, int docMax) { 1854// Log.d(LOGTAG, "-- pinLoc " + x + " " + viewMax + " " + docMax); 1855 if (docMax < viewMax) { // the doc has room on the sides for "blank" 1856 // pin the short document to the top/left of the screen 1857 x = 0; 1858// Log.d(LOGTAG, "--- center " + x); 1859 } else if (x < 0) { 1860 x = 0; 1861// Log.d(LOGTAG, "--- zero"); 1862 } else if (x + viewMax > docMax) { 1863 x = docMax - viewMax; 1864// Log.d(LOGTAG, "--- pin " + x); 1865 } 1866 return x; 1867 } 1868 1869 // Expects x in view coordinates 1870 private int pinLocX(int x) { 1871 return pinLoc(x, getViewWidth(), computeHorizontalScrollRange()); 1872 } 1873 1874 // Expects y in view coordinates 1875 private int pinLocY(int y) { 1876 int titleH = getTitleHeight(); 1877 // if the titlebar is still visible, just pin against 0 1878 if (y <= titleH) { 1879 return Math.max(y, 0); 1880 } 1881 // convert to 0-based coordinate (subtract the title height) 1882 // pin(), and then add the title height back in 1883 return pinLoc(y - titleH, getViewHeight(), 1884 computeVerticalScrollRange()) + titleH; 1885 } 1886 1887 /** 1888 * A title bar which is embedded in this WebView, and scrolls along with it 1889 * vertically, but not horizontally. 1890 */ 1891 private View mTitleBar; 1892 1893 /** 1894 * Since we draw the title bar ourselves, we removed the shadow from the 1895 * browser's activity. We do want a shadow at the bottom of the title bar, 1896 * or at the top of the screen if the title bar is not visible. This 1897 * drawable serves that purpose. 1898 */ 1899 private Drawable mTitleShadow; 1900 1901 /** 1902 * Add or remove a title bar to be embedded into the WebView, and scroll 1903 * along with it vertically, while remaining in view horizontally. Pass 1904 * null to remove the title bar from the WebView, and return to drawing 1905 * the WebView normally without translating to account for the title bar. 1906 * @hide 1907 */ 1908 public void setEmbeddedTitleBar(View v) { 1909 if (mTitleBar == v) return; 1910 if (mTitleBar != null) { 1911 removeView(mTitleBar); 1912 } 1913 if (null != v) { 1914 addView(v, new AbsoluteLayout.LayoutParams( 1915 ViewGroup.LayoutParams.MATCH_PARENT, 1916 ViewGroup.LayoutParams.WRAP_CONTENT, 0, 0)); 1917 if (mTitleShadow == null) { 1918 mTitleShadow = (Drawable) mContext.getResources().getDrawable( 1919 com.android.internal.R.drawable.title_bar_shadow); 1920 } 1921 } 1922 mTitleBar = v; 1923 } 1924 1925 /** 1926 * Given a distance in view space, convert it to content space. Note: this 1927 * does not reflect translation, just scaling, so this should not be called 1928 * with coordinates, but should be called for dimensions like width or 1929 * height. 1930 */ 1931 private int viewToContentDimension(int d) { 1932 return Math.round(d * mInvActualScale); 1933 } 1934 1935 /** 1936 * Given an x coordinate in view space, convert it to content space. Also 1937 * may be used for absolute heights (such as for the WebTextView's 1938 * textSize, which is unaffected by the height of the title bar). 1939 */ 1940 /*package*/ int viewToContentX(int x) { 1941 return viewToContentDimension(x); 1942 } 1943 1944 /** 1945 * Given a y coordinate in view space, convert it to content space. 1946 * Takes into account the height of the title bar if there is one 1947 * embedded into the WebView. 1948 */ 1949 /*package*/ int viewToContentY(int y) { 1950 return viewToContentDimension(y - getTitleHeight()); 1951 } 1952 1953 /** 1954 * Given a distance in content space, convert it to view space. Note: this 1955 * does not reflect translation, just scaling, so this should not be called 1956 * with coordinates, but should be called for dimensions like width or 1957 * height. 1958 */ 1959 /*package*/ int contentToViewDimension(int d) { 1960 return Math.round(d * mActualScale); 1961 } 1962 1963 /** 1964 * Given an x coordinate in content space, convert it to view 1965 * space. 1966 */ 1967 /*package*/ int contentToViewX(int x) { 1968 return contentToViewDimension(x); 1969 } 1970 1971 /** 1972 * Given a y coordinate in content space, convert it to view 1973 * space. Takes into account the height of the title bar. 1974 */ 1975 /*package*/ int contentToViewY(int y) { 1976 return contentToViewDimension(y) + getTitleHeight(); 1977 } 1978 1979 private Rect contentToViewRect(Rect x) { 1980 return new Rect(contentToViewX(x.left), contentToViewY(x.top), 1981 contentToViewX(x.right), contentToViewY(x.bottom)); 1982 } 1983 1984 /* To invalidate a rectangle in content coordinates, we need to transform 1985 the rect into view coordinates, so we can then call invalidate(...). 1986 1987 Normally, we would just call contentToView[XY](...), which eventually 1988 calls Math.round(coordinate * mActualScale). However, for invalidates, 1989 we need to account for the slop that occurs with antialiasing. To 1990 address that, we are a little more liberal in the size of the rect that 1991 we invalidate. 1992 1993 This liberal calculation calls floor() for the top/left, and ceil() for 1994 the bottom/right coordinates. This catches the possible extra pixels of 1995 antialiasing that we might have missed with just round(). 1996 */ 1997 1998 // Called by JNI to invalidate the View, given rectangle coordinates in 1999 // content space 2000 private void viewInvalidate(int l, int t, int r, int b) { 2001 final float scale = mActualScale; 2002 final int dy = getTitleHeight(); 2003 invalidate((int)Math.floor(l * scale), 2004 (int)Math.floor(t * scale) + dy, 2005 (int)Math.ceil(r * scale), 2006 (int)Math.ceil(b * scale) + dy); 2007 } 2008 2009 // Called by JNI to invalidate the View after a delay, given rectangle 2010 // coordinates in content space 2011 private void viewInvalidateDelayed(long delay, int l, int t, int r, int b) { 2012 final float scale = mActualScale; 2013 final int dy = getTitleHeight(); 2014 postInvalidateDelayed(delay, 2015 (int)Math.floor(l * scale), 2016 (int)Math.floor(t * scale) + dy, 2017 (int)Math.ceil(r * scale), 2018 (int)Math.ceil(b * scale) + dy); 2019 } 2020 2021 private void invalidateContentRect(Rect r) { 2022 viewInvalidate(r.left, r.top, r.right, r.bottom); 2023 } 2024 2025 // stop the scroll animation, and don't let a subsequent fling add 2026 // to the existing velocity 2027 private void abortAnimation() { 2028 mScroller.abortAnimation(); 2029 mLastVelocity = 0; 2030 } 2031 2032 /* call from webcoreview.draw(), so we're still executing in the UI thread 2033 */ 2034 private void recordNewContentSize(int w, int h, boolean updateLayout) { 2035 2036 // premature data from webkit, ignore 2037 if ((w | h) == 0) { 2038 return; 2039 } 2040 2041 // don't abort a scroll animation if we didn't change anything 2042 if (mContentWidth != w || mContentHeight != h) { 2043 // record new dimensions 2044 mContentWidth = w; 2045 mContentHeight = h; 2046 // If history Picture is drawn, don't update scroll. They will be 2047 // updated when we get out of that mode. 2048 if (!mDrawHistory) { 2049 // repin our scroll, taking into account the new content size 2050 int oldX = mScrollX; 2051 int oldY = mScrollY; 2052 mScrollX = pinLocX(mScrollX); 2053 mScrollY = pinLocY(mScrollY); 2054 if (oldX != mScrollX || oldY != mScrollY) { 2055 sendOurVisibleRect(); 2056 } 2057 if (!mScroller.isFinished()) { 2058 // We are in the middle of a scroll. Repin the final scroll 2059 // position. 2060 mScroller.setFinalX(pinLocX(mScroller.getFinalX())); 2061 mScroller.setFinalY(pinLocY(mScroller.getFinalY())); 2062 } 2063 } 2064 } 2065 contentSizeChanged(updateLayout); 2066 } 2067 2068 private void setNewZoomScale(float scale, boolean updateTextWrapScale, 2069 boolean force) { 2070 if (scale < mMinZoomScale) { 2071 scale = mMinZoomScale; 2072 // set mInZoomOverview for non mobile sites 2073 if (scale < mDefaultScale) mInZoomOverview = true; 2074 } else if (scale > mMaxZoomScale) { 2075 scale = mMaxZoomScale; 2076 } 2077 if (updateTextWrapScale) { 2078 mTextWrapScale = scale; 2079 // reset mLastHeightSent to force VIEW_SIZE_CHANGED sent to WebKit 2080 mLastHeightSent = 0; 2081 } 2082 if (scale != mActualScale || force) { 2083 if (mDrawHistory) { 2084 // If history Picture is drawn, don't update scroll. They will 2085 // be updated when we get out of that mode. 2086 if (scale != mActualScale && !mPreviewZoomOnly) { 2087 mCallbackProxy.onScaleChanged(mActualScale, scale); 2088 } 2089 mActualScale = scale; 2090 mInvActualScale = 1 / scale; 2091 sendViewSizeZoom(); 2092 } else { 2093 // update our scroll so we don't appear to jump 2094 // i.e. keep the center of the doc in the center of the view 2095 2096 int oldX = mScrollX; 2097 int oldY = mScrollY; 2098 float ratio = scale * mInvActualScale; // old inverse 2099 float sx = ratio * oldX + (ratio - 1) * mZoomCenterX; 2100 float sy = ratio * oldY + (ratio - 1) 2101 * (mZoomCenterY - getTitleHeight()); 2102 2103 // now update our new scale and inverse 2104 if (scale != mActualScale && !mPreviewZoomOnly) { 2105 mCallbackProxy.onScaleChanged(mActualScale, scale); 2106 } 2107 mActualScale = scale; 2108 mInvActualScale = 1 / scale; 2109 2110 // Scale all the child views 2111 mViewManager.scaleAll(); 2112 2113 // as we don't have animation for scaling, don't do animation 2114 // for scrolling, as it causes weird intermediate state 2115 // pinScrollTo(Math.round(sx), Math.round(sy)); 2116 mScrollX = pinLocX(Math.round(sx)); 2117 mScrollY = pinLocY(Math.round(sy)); 2118 2119 // update webkit 2120 sendViewSizeZoom(); 2121 sendOurVisibleRect(); 2122 } 2123 } 2124 } 2125 2126 // Used to avoid sending many visible rect messages. 2127 private Rect mLastVisibleRectSent; 2128 private Rect mLastGlobalRect; 2129 2130 private Rect sendOurVisibleRect() { 2131 if (mPreviewZoomOnly) return mLastVisibleRectSent; 2132 2133 Rect rect = new Rect(); 2134 calcOurContentVisibleRect(rect); 2135 // Rect.equals() checks for null input. 2136 if (!rect.equals(mLastVisibleRectSent)) { 2137 Point pos = new Point(rect.left, rect.top); 2138 mWebViewCore.sendMessage(EventHub.SET_SCROLL_OFFSET, 2139 nativeMoveGeneration(), 0, pos); 2140 mLastVisibleRectSent = rect; 2141 } 2142 Rect globalRect = new Rect(); 2143 if (getGlobalVisibleRect(globalRect) 2144 && !globalRect.equals(mLastGlobalRect)) { 2145 if (DebugFlags.WEB_VIEW) { 2146 Log.v(LOGTAG, "sendOurVisibleRect=(" + globalRect.left + "," 2147 + globalRect.top + ",r=" + globalRect.right + ",b=" 2148 + globalRect.bottom); 2149 } 2150 // TODO: the global offset is only used by windowRect() 2151 // in ChromeClientAndroid ; other clients such as touch 2152 // and mouse events could return view + screen relative points. 2153 mWebViewCore.sendMessage(EventHub.SET_GLOBAL_BOUNDS, globalRect); 2154 mLastGlobalRect = globalRect; 2155 } 2156 return rect; 2157 } 2158 2159 // Sets r to be the visible rectangle of our webview in view coordinates 2160 private void calcOurVisibleRect(Rect r) { 2161 Point p = new Point(); 2162 getGlobalVisibleRect(r, p); 2163 r.offset(-p.x, -p.y); 2164 if (mFindIsUp) { 2165 r.bottom -= mFindHeight; 2166 } 2167 } 2168 2169 // Sets r to be our visible rectangle in content coordinates 2170 private void calcOurContentVisibleRect(Rect r) { 2171 calcOurVisibleRect(r); 2172 r.left = viewToContentX(r.left); 2173 // viewToContentY will remove the total height of the title bar. Add 2174 // the visible height back in to account for the fact that if the title 2175 // bar is partially visible, the part of the visible rect which is 2176 // displaying our content is displaced by that amount. 2177 r.top = viewToContentY(r.top + getVisibleTitleHeight()); 2178 r.right = viewToContentX(r.right); 2179 r.bottom = viewToContentY(r.bottom); 2180 } 2181 2182 static class ViewSizeData { 2183 int mWidth; 2184 int mHeight; 2185 int mTextWrapWidth; 2186 int mAnchorX; 2187 int mAnchorY; 2188 float mScale; 2189 boolean mIgnoreHeight; 2190 } 2191 2192 /** 2193 * Compute unzoomed width and height, and if they differ from the last 2194 * values we sent, send them to webkit (to be used has new viewport) 2195 * 2196 * @return true if new values were sent 2197 */ 2198 private boolean sendViewSizeZoom() { 2199 if (mPreviewZoomOnly) return false; 2200 2201 int viewWidth = getViewWidth(); 2202 int newWidth = Math.round(viewWidth * mInvActualScale); 2203 int newHeight = Math.round(getViewHeight() * mInvActualScale); 2204 /* 2205 * Because the native side may have already done a layout before the 2206 * View system was able to measure us, we have to send a height of 0 to 2207 * remove excess whitespace when we grow our width. This will trigger a 2208 * layout and a change in content size. This content size change will 2209 * mean that contentSizeChanged will either call this method directly or 2210 * indirectly from onSizeChanged. 2211 */ 2212 if (newWidth > mLastWidthSent && mWrapContent) { 2213 newHeight = 0; 2214 } 2215 // Avoid sending another message if the dimensions have not changed. 2216 if (newWidth != mLastWidthSent || newHeight != mLastHeightSent) { 2217 ViewSizeData data = new ViewSizeData(); 2218 data.mWidth = newWidth; 2219 data.mHeight = newHeight; 2220 data.mTextWrapWidth = Math.round(viewWidth / mTextWrapScale);; 2221 data.mScale = mActualScale; 2222 data.mIgnoreHeight = mZoomScale != 0 && !mHeightCanMeasure; 2223 data.mAnchorX = mAnchorX; 2224 data.mAnchorY = mAnchorY; 2225 mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, data); 2226 mLastWidthSent = newWidth; 2227 mLastHeightSent = newHeight; 2228 mAnchorX = mAnchorY = 0; 2229 return true; 2230 } 2231 return false; 2232 } 2233 2234 @Override 2235 protected int computeHorizontalScrollRange() { 2236 if (mDrawHistory) { 2237 return mHistoryWidth; 2238 } else { 2239 // to avoid rounding error caused unnecessary scrollbar, use floor 2240 return (int) Math.floor(mContentWidth * mActualScale); 2241 } 2242 } 2243 2244 @Override 2245 protected int computeVerticalScrollRange() { 2246 if (mDrawHistory) { 2247 return mHistoryHeight; 2248 } else { 2249 // to avoid rounding error caused unnecessary scrollbar, use floor 2250 return (int) Math.floor(mContentHeight * mActualScale); 2251 } 2252 } 2253 2254 @Override 2255 protected int computeVerticalScrollOffset() { 2256 return Math.max(mScrollY - getTitleHeight(), 0); 2257 } 2258 2259 @Override 2260 protected int computeVerticalScrollExtent() { 2261 return getViewHeight(); 2262 } 2263 2264 /** @hide */ 2265 @Override 2266 protected void onDrawVerticalScrollBar(Canvas canvas, 2267 Drawable scrollBar, 2268 int l, int t, int r, int b) { 2269 scrollBar.setBounds(l, t + getVisibleTitleHeight(), r, b); 2270 scrollBar.draw(canvas); 2271 } 2272 2273 /** 2274 * Get the url for the current page. This is not always the same as the url 2275 * passed to WebViewClient.onPageStarted because although the load for 2276 * that url has begun, the current page may not have changed. 2277 * @return The url for the current page. 2278 */ 2279 public String getUrl() { 2280 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2281 return h != null ? h.getUrl() : null; 2282 } 2283 2284 /** 2285 * Get the original url for the current page. This is not always the same 2286 * as the url passed to WebViewClient.onPageStarted because although the 2287 * load for that url has begun, the current page may not have changed. 2288 * Also, there may have been redirects resulting in a different url to that 2289 * originally requested. 2290 * @return The url that was originally requested for the current page. 2291 */ 2292 public String getOriginalUrl() { 2293 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2294 return h != null ? h.getOriginalUrl() : null; 2295 } 2296 2297 /** 2298 * Get the title for the current page. This is the title of the current page 2299 * until WebViewClient.onReceivedTitle is called. 2300 * @return The title for the current page. 2301 */ 2302 public String getTitle() { 2303 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2304 return h != null ? h.getTitle() : null; 2305 } 2306 2307 /** 2308 * Get the favicon for the current page. This is the favicon of the current 2309 * page until WebViewClient.onReceivedIcon is called. 2310 * @return The favicon for the current page. 2311 */ 2312 public Bitmap getFavicon() { 2313 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2314 return h != null ? h.getFavicon() : null; 2315 } 2316 2317 /** 2318 * Get the touch icon url for the apple-touch-icon <link> element. 2319 * @hide 2320 */ 2321 public String getTouchIconUrl() { 2322 WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); 2323 return h != null ? h.getTouchIconUrl() : null; 2324 } 2325 2326 /** 2327 * Get the progress for the current page. 2328 * @return The progress for the current page between 0 and 100. 2329 */ 2330 public int getProgress() { 2331 return mCallbackProxy.getProgress(); 2332 } 2333 2334 /** 2335 * @return the height of the HTML content. 2336 */ 2337 public int getContentHeight() { 2338 return mContentHeight; 2339 } 2340 2341 /** 2342 * @return the width of the HTML content. 2343 * @hide 2344 */ 2345 public int getContentWidth() { 2346 return mContentWidth; 2347 } 2348 2349 /** 2350 * Pause all layout, parsing, and javascript timers for all webviews. This 2351 * is a global requests, not restricted to just this webview. This can be 2352 * useful if the application has been paused. 2353 */ 2354 public void pauseTimers() { 2355 mWebViewCore.sendMessage(EventHub.PAUSE_TIMERS); 2356 } 2357 2358 /** 2359 * Resume all layout, parsing, and javascript timers for all webviews. 2360 * This will resume dispatching all timers. 2361 */ 2362 public void resumeTimers() { 2363 mWebViewCore.sendMessage(EventHub.RESUME_TIMERS); 2364 } 2365 2366 /** 2367 * Call this to pause any extra processing associated with this view and 2368 * its associated DOM/plugins/javascript/etc. For example, if the view is 2369 * taken offscreen, this could be called to reduce unnecessary CPU and/or 2370 * network traffic. When the view is again "active", call onResume(). 2371 * 2372 * Note that this differs from pauseTimers(), which affects all views/DOMs 2373 * @hide 2374 */ 2375 public void onPause() { 2376 if (!mIsPaused) { 2377 mIsPaused = true; 2378 mWebViewCore.sendMessage(EventHub.ON_PAUSE); 2379 } 2380 } 2381 2382 /** 2383 * Call this to balanace a previous call to onPause() 2384 * @hide 2385 */ 2386 public void onResume() { 2387 if (mIsPaused) { 2388 mIsPaused = false; 2389 mWebViewCore.sendMessage(EventHub.ON_RESUME); 2390 } 2391 } 2392 2393 /** 2394 * Returns true if the view is paused, meaning onPause() was called. Calling 2395 * onResume() sets the paused state back to false. 2396 * @hide 2397 */ 2398 public boolean isPaused() { 2399 return mIsPaused; 2400 } 2401 2402 /** 2403 * Call this to inform the view that memory is low so that it can 2404 * free any available memory. 2405 */ 2406 public void freeMemory() { 2407 mWebViewCore.sendMessage(EventHub.FREE_MEMORY); 2408 } 2409 2410 /** 2411 * Clear the resource cache. Note that the cache is per-application, so 2412 * this will clear the cache for all WebViews used. 2413 * 2414 * @param includeDiskFiles If false, only the RAM cache is cleared. 2415 */ 2416 public void clearCache(boolean includeDiskFiles) { 2417 // Note: this really needs to be a static method as it clears cache for all 2418 // WebView. But we need mWebViewCore to send message to WebCore thread, so 2419 // we can't make this static. 2420 mWebViewCore.sendMessage(EventHub.CLEAR_CACHE, 2421 includeDiskFiles ? 1 : 0, 0); 2422 } 2423 2424 /** 2425 * Make sure that clearing the form data removes the adapter from the 2426 * currently focused textfield if there is one. 2427 */ 2428 public void clearFormData() { 2429 if (inEditingMode()) { 2430 AutoCompleteAdapter adapter = null; 2431 mWebTextView.setAdapterCustom(adapter); 2432 } 2433 } 2434 2435 /** 2436 * Tell the WebView to clear its internal back/forward list. 2437 */ 2438 public void clearHistory() { 2439 mCallbackProxy.getBackForwardList().setClearPending(); 2440 mWebViewCore.sendMessage(EventHub.CLEAR_HISTORY); 2441 } 2442 2443 /** 2444 * Clear the SSL preferences table stored in response to proceeding with SSL 2445 * certificate errors. 2446 */ 2447 public void clearSslPreferences() { 2448 mWebViewCore.sendMessage(EventHub.CLEAR_SSL_PREF_TABLE); 2449 } 2450 2451 /** 2452 * Return the WebBackForwardList for this WebView. This contains the 2453 * back/forward list for use in querying each item in the history stack. 2454 * This is a copy of the private WebBackForwardList so it contains only a 2455 * snapshot of the current state. Multiple calls to this method may return 2456 * different objects. The object returned from this method will not be 2457 * updated to reflect any new state. 2458 */ 2459 public WebBackForwardList copyBackForwardList() { 2460 return mCallbackProxy.getBackForwardList().clone(); 2461 } 2462 2463 /* 2464 * Highlight and scroll to the next occurance of String in findAll. 2465 * Wraps the page infinitely, and scrolls. Must be called after 2466 * calling findAll. 2467 * 2468 * @param forward Direction to search. 2469 */ 2470 public void findNext(boolean forward) { 2471 if (0 == mNativeClass) return; // client isn't initialized 2472 nativeFindNext(forward); 2473 } 2474 2475 /* 2476 * Find all instances of find on the page and highlight them. 2477 * @param find String to find. 2478 * @return int The number of occurances of the String "find" 2479 * that were found. 2480 */ 2481 public int findAll(String find) { 2482 if (0 == mNativeClass) return 0; // client isn't initialized 2483 int result = find != null ? nativeFindAll(find.toLowerCase(), 2484 find.toUpperCase()) : 0; 2485 invalidate(); 2486 mLastFind = find; 2487 return result; 2488 } 2489 2490 /** 2491 * @hide 2492 */ 2493 public void setFindIsUp(boolean isUp) { 2494 mFindIsUp = isUp; 2495 if (isUp) { 2496 recordNewContentSize(mContentWidth, mContentHeight + mFindHeight, 2497 false); 2498 } 2499 if (0 == mNativeClass) return; // client isn't initialized 2500 nativeSetFindIsUp(isUp); 2501 } 2502 2503 // Used to know whether the find dialog is open. Affects whether 2504 // or not we draw the highlights for matches. 2505 private boolean mFindIsUp; 2506 2507 private int mFindHeight; 2508 // Keep track of the last string sent, so we can search again after an 2509 // orientation change or the dismissal of the soft keyboard. 2510 private String mLastFind; 2511 2512 /** 2513 * Return the first substring consisting of the address of a physical 2514 * location. Currently, only addresses in the United States are detected, 2515 * and consist of: 2516 * - a house number 2517 * - a street name 2518 * - a street type (Road, Circle, etc), either spelled out or abbreviated 2519 * - a city name 2520 * - a state or territory, either spelled out or two-letter abbr. 2521 * - an optional 5 digit or 9 digit zip code. 2522 * 2523 * All names must be correctly capitalized, and the zip code, if present, 2524 * must be valid for the state. The street type must be a standard USPS 2525 * spelling or abbreviation. The state or territory must also be spelled 2526 * or abbreviated using USPS standards. The house number may not exceed 2527 * five digits. 2528 * @param addr The string to search for addresses. 2529 * 2530 * @return the address, or if no address is found, return null. 2531 */ 2532 public static String findAddress(String addr) { 2533 return findAddress(addr, false); 2534 } 2535 2536 /** 2537 * @hide 2538 * Return the first substring consisting of the address of a physical 2539 * location. Currently, only addresses in the United States are detected, 2540 * and consist of: 2541 * - a house number 2542 * - a street name 2543 * - a street type (Road, Circle, etc), either spelled out or abbreviated 2544 * - a city name 2545 * - a state or territory, either spelled out or two-letter abbr. 2546 * - an optional 5 digit or 9 digit zip code. 2547 * 2548 * Names are optionally capitalized, and the zip code, if present, 2549 * must be valid for the state. The street type must be a standard USPS 2550 * spelling or abbreviation. The state or territory must also be spelled 2551 * or abbreviated using USPS standards. The house number may not exceed 2552 * five digits. 2553 * @param addr The string to search for addresses. 2554 * @param caseInsensitive addr Set to true to make search ignore case. 2555 * 2556 * @return the address, or if no address is found, return null. 2557 */ 2558 public static String findAddress(String addr, boolean caseInsensitive) { 2559 return WebViewCore.nativeFindAddress(addr, caseInsensitive); 2560 } 2561 2562 /* 2563 * Clear the highlighting surrounding text matches created by findAll. 2564 */ 2565 public void clearMatches() { 2566 mLastFind = ""; 2567 if (mNativeClass == 0) 2568 return; 2569 nativeSetFindIsEmpty(); 2570 invalidate(); 2571 } 2572 2573 /** 2574 * @hide 2575 */ 2576 public void notifyFindDialogDismissed() { 2577 clearMatches(); 2578 setFindIsUp(false); 2579 recordNewContentSize(mContentWidth, mContentHeight - mFindHeight, 2580 false); 2581 // Now that the dialog has been removed, ensure that we scroll to a 2582 // location that is not beyond the end of the page. 2583 pinScrollTo(mScrollX, mScrollY, false, 0); 2584 invalidate(); 2585 } 2586 2587 /** 2588 * @hide 2589 */ 2590 public void setFindDialogHeight(int height) { 2591 if (DebugFlags.WEB_VIEW) { 2592 Log.v(LOGTAG, "setFindDialogHeight height=" + height); 2593 } 2594 mFindHeight = height; 2595 } 2596 2597 /** 2598 * Query the document to see if it contains any image references. The 2599 * message object will be dispatched with arg1 being set to 1 if images 2600 * were found and 0 if the document does not reference any images. 2601 * @param response The message that will be dispatched with the result. 2602 */ 2603 public void documentHasImages(Message response) { 2604 if (response == null) { 2605 return; 2606 } 2607 mWebViewCore.sendMessage(EventHub.DOC_HAS_IMAGES, response); 2608 } 2609 2610 @Override 2611 public void computeScroll() { 2612 if (mScroller.computeScrollOffset()) { 2613 int oldX = mScrollX; 2614 int oldY = mScrollY; 2615 mScrollX = mScroller.getCurrX(); 2616 mScrollY = mScroller.getCurrY(); 2617 postInvalidate(); // So we draw again 2618 if (oldX != mScrollX || oldY != mScrollY) { 2619 // as onScrollChanged() is not called, sendOurVisibleRect() 2620 // needs to be call explicitly 2621 sendOurVisibleRect(); 2622 } 2623 } else { 2624 super.computeScroll(); 2625 } 2626 } 2627 2628 private static int computeDuration(int dx, int dy) { 2629 int distance = Math.max(Math.abs(dx), Math.abs(dy)); 2630 int duration = distance * 1000 / STD_SPEED; 2631 return Math.min(duration, MAX_DURATION); 2632 } 2633 2634 // helper to pin the scrollBy parameters (already in view coordinates) 2635 // returns true if the scroll was changed 2636 private boolean pinScrollBy(int dx, int dy, boolean animate, int animationDuration) { 2637 return pinScrollTo(mScrollX + dx, mScrollY + dy, animate, animationDuration); 2638 } 2639 // helper to pin the scrollTo parameters (already in view coordinates) 2640 // returns true if the scroll was changed 2641 private boolean pinScrollTo(int x, int y, boolean animate, int animationDuration) { 2642 x = pinLocX(x); 2643 y = pinLocY(y); 2644 int dx = x - mScrollX; 2645 int dy = y - mScrollY; 2646 2647 if ((dx | dy) == 0) { 2648 return false; 2649 } 2650 if (animate) { 2651 // Log.d(LOGTAG, "startScroll: " + dx + " " + dy); 2652 mScroller.startScroll(mScrollX, mScrollY, dx, dy, 2653 animationDuration > 0 ? animationDuration : computeDuration(dx, dy)); 2654 awakenScrollBars(mScroller.getDuration()); 2655 invalidate(); 2656 } else { 2657 abortAnimation(); // just in case 2658 scrollTo(x, y); 2659 } 2660 return true; 2661 } 2662 2663 // Scale from content to view coordinates, and pin. 2664 // Also called by jni webview.cpp 2665 private boolean setContentScrollBy(int cx, int cy, boolean animate) { 2666 if (mDrawHistory) { 2667 // disallow WebView to change the scroll position as History Picture 2668 // is used in the view system. 2669 // TODO: as we switchOutDrawHistory when trackball or navigation 2670 // keys are hit, this should be safe. Right? 2671 return false; 2672 } 2673 cx = contentToViewDimension(cx); 2674 cy = contentToViewDimension(cy); 2675 if (mHeightCanMeasure) { 2676 // move our visible rect according to scroll request 2677 if (cy != 0) { 2678 Rect tempRect = new Rect(); 2679 calcOurVisibleRect(tempRect); 2680 tempRect.offset(cx, cy); 2681 requestRectangleOnScreen(tempRect); 2682 } 2683 // FIXME: We scroll horizontally no matter what because currently 2684 // ScrollView and ListView will not scroll horizontally. 2685 // FIXME: Why do we only scroll horizontally if there is no 2686 // vertical scroll? 2687// Log.d(LOGTAG, "setContentScrollBy cy=" + cy); 2688 return cy == 0 && cx != 0 && pinScrollBy(cx, 0, animate, 0); 2689 } else { 2690 return pinScrollBy(cx, cy, animate, 0); 2691 } 2692 } 2693 2694 /** 2695 * Called by CallbackProxy when the page finishes loading. 2696 * @param url The URL of the page which has finished loading. 2697 */ 2698 /* package */ void onPageFinished(String url) { 2699 if (mPageThatNeedsToSlideTitleBarOffScreen != null) { 2700 // If the user is now on a different page, or has scrolled the page 2701 // past the point where the title bar is offscreen, ignore the 2702 // scroll request. 2703 if (mPageThatNeedsToSlideTitleBarOffScreen.equals(url) 2704 && mScrollX == 0 && mScrollY == 0) { 2705 pinScrollTo(0, mYDistanceToSlideTitleOffScreen, true, 2706 SLIDE_TITLE_DURATION); 2707 } 2708 mPageThatNeedsToSlideTitleBarOffScreen = null; 2709 } 2710 } 2711 2712 /** 2713 * The URL of a page that sent a message to scroll the title bar off screen. 2714 * 2715 * Many mobile sites tell the page to scroll to (0,1) in order to scroll the 2716 * title bar off the screen. Sometimes, the scroll position is set before 2717 * the page finishes loading. Rather than scrolling while the page is still 2718 * loading, keep track of the URL and new scroll position so we can perform 2719 * the scroll once the page finishes loading. 2720 */ 2721 private String mPageThatNeedsToSlideTitleBarOffScreen; 2722 2723 /** 2724 * The destination Y scroll position to be used when the page finishes 2725 * loading. See mPageThatNeedsToSlideTitleBarOffScreen. 2726 */ 2727 private int mYDistanceToSlideTitleOffScreen; 2728 2729 // scale from content to view coordinates, and pin 2730 // return true if pin caused the final x/y different than the request cx/cy, 2731 // and a future scroll may reach the request cx/cy after our size has 2732 // changed 2733 // return false if the view scroll to the exact position as it is requested, 2734 // where negative numbers are taken to mean 0 2735 private boolean setContentScrollTo(int cx, int cy) { 2736 if (mDrawHistory) { 2737 // disallow WebView to change the scroll position as History Picture 2738 // is used in the view system. 2739 // One known case where this is called is that WebCore tries to 2740 // restore the scroll position. As history Picture already uses the 2741 // saved scroll position, it is ok to skip this. 2742 return false; 2743 } 2744 int vx; 2745 int vy; 2746 if ((cx | cy) == 0) { 2747 // If the page is being scrolled to (0,0), do not add in the title 2748 // bar's height, and simply scroll to (0,0). (The only other work 2749 // in contentToView_ is to multiply, so this would not change 0.) 2750 vx = 0; 2751 vy = 0; 2752 } else { 2753 vx = contentToViewX(cx); 2754 vy = contentToViewY(cy); 2755 } 2756// Log.d(LOGTAG, "content scrollTo [" + cx + " " + cy + "] view=[" + 2757// vx + " " + vy + "]"); 2758 // Some mobile sites attempt to scroll the title bar off the page by 2759 // scrolling to (0,1). If we are at the top left corner of the 2760 // page, assume this is an attempt to scroll off the title bar, and 2761 // animate the title bar off screen slowly enough that the user can see 2762 // it. 2763 if (cx == 0 && cy == 1 && mScrollX == 0 && mScrollY == 0 2764 && mTitleBar != null) { 2765 // FIXME: 100 should be defined somewhere as our max progress. 2766 if (getProgress() < 100) { 2767 // Wait to scroll the title bar off screen until the page has 2768 // finished loading. Keep track of the URL and the destination 2769 // Y position 2770 mPageThatNeedsToSlideTitleBarOffScreen = getUrl(); 2771 mYDistanceToSlideTitleOffScreen = vy; 2772 } else { 2773 pinScrollTo(vx, vy, true, SLIDE_TITLE_DURATION); 2774 } 2775 // Since we are animating, we have not yet reached the desired 2776 // scroll position. Do not return true to request another attempt 2777 return false; 2778 } 2779 pinScrollTo(vx, vy, false, 0); 2780 // If the request was to scroll to a negative coordinate, treat it as if 2781 // it was a request to scroll to 0 2782 if ((mScrollX != vx && cx >= 0) || (mScrollY != vy && cy >= 0)) { 2783 return true; 2784 } else { 2785 return false; 2786 } 2787 } 2788 2789 // scale from content to view coordinates, and pin 2790 private void spawnContentScrollTo(int cx, int cy) { 2791 if (mDrawHistory) { 2792 // disallow WebView to change the scroll position as History Picture 2793 // is used in the view system. 2794 return; 2795 } 2796 int vx = contentToViewX(cx); 2797 int vy = contentToViewY(cy); 2798 pinScrollTo(vx, vy, true, 0); 2799 } 2800 2801 /** 2802 * These are from webkit, and are in content coordinate system (unzoomed) 2803 */ 2804 private void contentSizeChanged(boolean updateLayout) { 2805 // suppress 0,0 since we usually see real dimensions soon after 2806 // this avoids drawing the prev content in a funny place. If we find a 2807 // way to consolidate these notifications, this check may become 2808 // obsolete 2809 if ((mContentWidth | mContentHeight) == 0) { 2810 return; 2811 } 2812 2813 if (mHeightCanMeasure) { 2814 if (getMeasuredHeight() != contentToViewDimension(mContentHeight) 2815 || updateLayout) { 2816 requestLayout(); 2817 } 2818 } else if (mWidthCanMeasure) { 2819 if (getMeasuredWidth() != contentToViewDimension(mContentWidth) 2820 || updateLayout) { 2821 requestLayout(); 2822 } 2823 } else { 2824 // If we don't request a layout, try to send our view size to the 2825 // native side to ensure that WebCore has the correct dimensions. 2826 sendViewSizeZoom(); 2827 } 2828 } 2829 2830 /** 2831 * Set the WebViewClient that will receive various notifications and 2832 * requests. This will replace the current handler. 2833 * @param client An implementation of WebViewClient. 2834 */ 2835 public void setWebViewClient(WebViewClient client) { 2836 mCallbackProxy.setWebViewClient(client); 2837 } 2838 2839 /** 2840 * Gets the WebViewClient 2841 * @return the current WebViewClient instance. 2842 * 2843 *@hide pending API council approval. 2844 */ 2845 public WebViewClient getWebViewClient() { 2846 return mCallbackProxy.getWebViewClient(); 2847 } 2848 2849 /** 2850 * Register the interface to be used when content can not be handled by 2851 * the rendering engine, and should be downloaded instead. This will replace 2852 * the current handler. 2853 * @param listener An implementation of DownloadListener. 2854 */ 2855 public void setDownloadListener(DownloadListener listener) { 2856 mCallbackProxy.setDownloadListener(listener); 2857 } 2858 2859 /** 2860 * Set the chrome handler. This is an implementation of WebChromeClient for 2861 * use in handling Javascript dialogs, favicons, titles, and the progress. 2862 * This will replace the current handler. 2863 * @param client An implementation of WebChromeClient. 2864 */ 2865 public void setWebChromeClient(WebChromeClient client) { 2866 mCallbackProxy.setWebChromeClient(client); 2867 } 2868 2869 /** 2870 * Gets the chrome handler. 2871 * @return the current WebChromeClient instance. 2872 * 2873 * @hide API council approval. 2874 */ 2875 public WebChromeClient getWebChromeClient() { 2876 return mCallbackProxy.getWebChromeClient(); 2877 } 2878 2879 /** 2880 * Set the back/forward list client. This is an implementation of 2881 * WebBackForwardListClient for handling new items and changes in the 2882 * history index. 2883 * @param client An implementation of WebBackForwardListClient. 2884 * {@hide} 2885 */ 2886 public void setWebBackForwardListClient(WebBackForwardListClient client) { 2887 mCallbackProxy.setWebBackForwardListClient(client); 2888 } 2889 2890 /** 2891 * Gets the WebBackForwardListClient. 2892 * {@hide} 2893 */ 2894 public WebBackForwardListClient getWebBackForwardListClient() { 2895 return mCallbackProxy.getWebBackForwardListClient(); 2896 } 2897 2898 /** 2899 * Set the Picture listener. This is an interface used to receive 2900 * notifications of a new Picture. 2901 * @param listener An implementation of WebView.PictureListener. 2902 */ 2903 public void setPictureListener(PictureListener listener) { 2904 mPictureListener = listener; 2905 } 2906 2907 /** 2908 * {@hide} 2909 */ 2910 /* FIXME: Debug only! Remove for SDK! */ 2911 public void externalRepresentation(Message callback) { 2912 mWebViewCore.sendMessage(EventHub.REQUEST_EXT_REPRESENTATION, callback); 2913 } 2914 2915 /** 2916 * {@hide} 2917 */ 2918 /* FIXME: Debug only! Remove for SDK! */ 2919 public void documentAsText(Message callback) { 2920 mWebViewCore.sendMessage(EventHub.REQUEST_DOC_AS_TEXT, callback); 2921 } 2922 2923 /** 2924 * Use this function to bind an object to Javascript so that the 2925 * methods can be accessed from Javascript. 2926 * <p><strong>IMPORTANT:</strong> 2927 * <ul> 2928 * <li> Using addJavascriptInterface() allows JavaScript to control your 2929 * application. This can be a very useful feature or a dangerous security 2930 * issue. When the HTML in the WebView is untrustworthy (for example, part 2931 * or all of the HTML is provided by some person or process), then an 2932 * attacker could inject HTML that will execute your code and possibly any 2933 * code of the attacker's choosing.<br> 2934 * Do not use addJavascriptInterface() unless all of the HTML in this 2935 * WebView was written by you.</li> 2936 * <li> The Java object that is bound runs in another thread and not in 2937 * the thread that it was constructed in.</li> 2938 * </ul></p> 2939 * @param obj The class instance to bind to Javascript 2940 * @param interfaceName The name to used to expose the class in Javascript 2941 */ 2942 public void addJavascriptInterface(Object obj, String interfaceName) { 2943 WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); 2944 arg.mObject = obj; 2945 arg.mInterfaceName = interfaceName; 2946 mWebViewCore.sendMessage(EventHub.ADD_JS_INTERFACE, arg); 2947 } 2948 2949 /** 2950 * Return the WebSettings object used to control the settings for this 2951 * WebView. 2952 * @return A WebSettings object that can be used to control this WebView's 2953 * settings. 2954 */ 2955 public WebSettings getSettings() { 2956 return mWebViewCore.getSettings(); 2957 } 2958 2959 /** 2960 * Use this method to inform the webview about packages that are installed 2961 * in the system. This information will be used by the 2962 * navigator.isApplicationInstalled() API. 2963 * @param packageNames is a set of package names that are known to be 2964 * installed in the system. 2965 * 2966 * @hide not a public API 2967 */ 2968 public void addPackageNames(Set<String> packageNames) { 2969 mWebViewCore.sendMessage(EventHub.ADD_PACKAGE_NAMES, packageNames); 2970 } 2971 2972 /** 2973 * Use this method to inform the webview about single packages that are 2974 * installed in the system. This information will be used by the 2975 * navigator.isApplicationInstalled() API. 2976 * @param packageName is the name of a package that is known to be 2977 * installed in the system. 2978 * 2979 * @hide not a public API 2980 */ 2981 public void addPackageName(String packageName) { 2982 mWebViewCore.sendMessage(EventHub.ADD_PACKAGE_NAME, packageName); 2983 } 2984 2985 /** 2986 * Use this method to inform the webview about packages that are uninstalled 2987 * in the system. This information will be used by the 2988 * navigator.isApplicationInstalled() API. 2989 * @param packageName is the name of a package that has been uninstalled in 2990 * the system. 2991 * 2992 * @hide not a public API 2993 */ 2994 public void removePackageName(String packageName) { 2995 mWebViewCore.sendMessage(EventHub.REMOVE_PACKAGE_NAME, packageName); 2996 } 2997 2998 /** 2999 * Return the list of currently loaded plugins. 3000 * @return The list of currently loaded plugins. 3001 * 3002 * @deprecated This was used for Gears, which has been deprecated. 3003 */ 3004 @Deprecated 3005 public static synchronized PluginList getPluginList() { 3006 return new PluginList(); 3007 } 3008 3009 /** 3010 * @deprecated This was used for Gears, which has been deprecated. 3011 */ 3012 @Deprecated 3013 public void refreshPlugins(boolean reloadOpenPages) { } 3014 3015 //------------------------------------------------------------------------- 3016 // Override View methods 3017 //------------------------------------------------------------------------- 3018 3019 @Override 3020 protected void finalize() throws Throwable { 3021 try { 3022 destroy(); 3023 } finally { 3024 super.finalize(); 3025 } 3026 } 3027 3028 @Override 3029 protected boolean drawChild(Canvas canvas, View child, long drawingTime) { 3030 if (child == mTitleBar) { 3031 // When drawing the title bar, move it horizontally to always show 3032 // at the top of the WebView. 3033 mTitleBar.offsetLeftAndRight(mScrollX - mTitleBar.getLeft()); 3034 } 3035 return super.drawChild(canvas, child, drawingTime); 3036 } 3037 3038 private void drawContent(Canvas canvas) { 3039 // Update the buttons in the picture, so when we draw the picture 3040 // to the screen, they are in the correct state. 3041 // Tell the native side if user is a) touching the screen, 3042 // b) pressing the trackball down, or c) pressing the enter key 3043 // If the cursor is on a button, we need to draw it in the pressed 3044 // state. 3045 // If mNativeClass is 0, we should not reach here, so we do not 3046 // need to check it again. 3047 nativeRecordButtons(hasFocus() && hasWindowFocus(), 3048 mTouchMode == TOUCH_SHORTPRESS_START_MODE 3049 || mTrackballDown || mGotCenterDown, false); 3050 drawCoreAndCursorRing(canvas, mBackgroundColor, mDrawCursorRing); 3051 } 3052 3053 @Override 3054 protected void onDraw(Canvas canvas) { 3055 // if mNativeClass is 0, the WebView has been destroyed. Do nothing. 3056 if (mNativeClass == 0) { 3057 return; 3058 } 3059 3060 int saveCount = canvas.save(); 3061 if (mTitleBar != null) { 3062 canvas.translate(0, (int) mTitleBar.getHeight()); 3063 } 3064 if (mDragTrackerHandler == null) { 3065 drawContent(canvas); 3066 } else { 3067 if (!mDragTrackerHandler.draw(canvas)) { 3068 // sometimes the tracker doesn't draw, even though its active 3069 drawContent(canvas); 3070 } 3071 if (mDragTrackerHandler.isFinished()) { 3072 mDragTrackerHandler = null; 3073 } 3074 } 3075 canvas.restoreToCount(saveCount); 3076 3077 // Now draw the shadow. 3078 if (mTitleBar != null) { 3079 int y = mScrollY + getVisibleTitleHeight(); 3080 int height = (int) (5f * getContext().getResources() 3081 .getDisplayMetrics().density); 3082 mTitleShadow.setBounds(mScrollX, y, mScrollX + getWidth(), 3083 y + height); 3084 mTitleShadow.draw(canvas); 3085 } 3086 if (AUTO_REDRAW_HACK && mAutoRedraw) { 3087 invalidate(); 3088 } 3089 mWebViewCore.signalRepaintDone(); 3090 } 3091 3092 @Override 3093 public void setLayoutParams(ViewGroup.LayoutParams params) { 3094 if (params.height == LayoutParams.WRAP_CONTENT) { 3095 mWrapContent = true; 3096 } 3097 super.setLayoutParams(params); 3098 } 3099 3100 @Override 3101 public boolean performLongClick() { 3102 // performLongClick() is the result of a delayed message. If we switch 3103 // to windows overview, the WebView will be temporarily removed from the 3104 // view system. In that case, do nothing. 3105 if (getParent() == null) return false; 3106 if (mNativeClass != 0 && nativeCursorIsTextInput()) { 3107 // Send the click so that the textfield is in focus 3108 centerKeyPressOnTextField(); 3109 rebuildWebTextView(); 3110 } 3111 if (inEditingMode()) { 3112 return mWebTextView.performLongClick(); 3113 } else { 3114 return super.performLongClick(); 3115 } 3116 } 3117 3118 boolean inAnimateZoom() { 3119 return mZoomScale != 0; 3120 } 3121 3122 /** 3123 * Need to adjust the WebTextView after a change in zoom, since mActualScale 3124 * has changed. This is especially important for password fields, which are 3125 * drawn by the WebTextView, since it conveys more information than what 3126 * webkit draws. Thus we need to reposition it to show in the correct 3127 * place. 3128 */ 3129 private boolean mNeedToAdjustWebTextView; 3130 3131 private boolean didUpdateTextViewBounds(boolean allowIntersect) { 3132 Rect contentBounds = nativeFocusCandidateNodeBounds(); 3133 Rect vBox = contentToViewRect(contentBounds); 3134 Rect visibleRect = new Rect(); 3135 calcOurVisibleRect(visibleRect); 3136 // If the textfield is on screen, place the WebTextView in 3137 // its new place, accounting for our new scroll/zoom values, 3138 // and adjust its textsize. 3139 if (allowIntersect ? Rect.intersects(visibleRect, vBox) 3140 : visibleRect.contains(vBox)) { 3141 mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), 3142 vBox.height()); 3143 mWebTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX, 3144 contentToViewDimension( 3145 nativeFocusCandidateTextSize())); 3146 return true; 3147 } else { 3148 // The textfield is now off screen. The user probably 3149 // was not zooming to see the textfield better. Remove 3150 // the WebTextView. If the user types a key, and the 3151 // textfield is still in focus, we will reconstruct 3152 // the WebTextView and scroll it back on screen. 3153 mWebTextView.remove(); 3154 return false; 3155 } 3156 } 3157 3158 private static class Metrics { 3159 int mScrollX; 3160 int mScrollY; 3161 int mWidth; 3162 int mHeight; 3163 float mInvScale; 3164 } 3165 3166 private Metrics getViewMetrics() { 3167 Metrics metrics = new Metrics(); 3168 metrics.mScrollX = mScrollX; 3169 metrics.mScrollY = computeVerticalScrollOffset(); 3170 metrics.mWidth = getWidth(); 3171 metrics.mHeight = getHeight() - getVisibleTitleHeight(); 3172 if (mFindIsUp) { 3173 metrics.mHeight -= mFindHeight; 3174 } 3175 metrics.mInvScale = mInvActualScale; 3176 return metrics; 3177 } 3178 3179 private void drawExtras(Canvas canvas, int extras) { 3180 // If mNativeClass is 0, we should not reach here, so we do not 3181 // need to check it again. 3182 // Currently for each draw we compute the animation values; 3183 // We may in the future decide to do that independently. 3184 if (nativeEvaluateLayersAnimations()) { 3185 // If we have unfinished (or unstarted) animations, 3186 // we ask for a repaint. 3187 invalidate(); 3188 } 3189 3190 nativeDrawExtras(canvas, extras); 3191 } 3192 3193 private void drawCoreAndCursorRing(Canvas canvas, int color, 3194 boolean drawCursorRing) { 3195 if (mDrawHistory) { 3196 canvas.scale(mActualScale, mActualScale); 3197 canvas.drawPicture(mHistoryPicture); 3198 return; 3199 } 3200 3201 boolean animateZoom = mZoomScale != 0; 3202 boolean animateScroll = (!mScroller.isFinished() 3203 || mVelocityTracker != null) 3204 && (mTouchMode != TOUCH_DRAG_MODE || 3205 mHeldMotionless != MOTIONLESS_TRUE); 3206 if (mTouchMode == TOUCH_DRAG_MODE) { 3207 if (mHeldMotionless == MOTIONLESS_PENDING) { 3208 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 3209 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 3210 mHeldMotionless = MOTIONLESS_FALSE; 3211 } 3212 if (mHeldMotionless == MOTIONLESS_FALSE) { 3213 mPrivateHandler.sendMessageDelayed(mPrivateHandler 3214 .obtainMessage(DRAG_HELD_MOTIONLESS), MOTIONLESS_TIME); 3215 mHeldMotionless = MOTIONLESS_PENDING; 3216 } 3217 } 3218 if (animateZoom) { 3219 float zoomScale; 3220 int interval = (int) (SystemClock.uptimeMillis() - mZoomStart); 3221 if (interval < ZOOM_ANIMATION_LENGTH) { 3222 float ratio = (float) interval / ZOOM_ANIMATION_LENGTH; 3223 zoomScale = 1.0f / (mInvInitialZoomScale 3224 + (mInvFinalZoomScale - mInvInitialZoomScale) * ratio); 3225 invalidate(); 3226 } else { 3227 zoomScale = mZoomScale; 3228 // set mZoomScale to be 0 as we have done animation 3229 mZoomScale = 0; 3230 WebViewCore.resumeUpdatePicture(mWebViewCore); 3231 // call invalidate() again to draw with the final filters 3232 invalidate(); 3233 if (mNeedToAdjustWebTextView) { 3234 mNeedToAdjustWebTextView = false; 3235 if (didUpdateTextViewBounds(false) 3236 && nativeFocusCandidateIsPassword()) { 3237 // If it is a password field, start drawing the 3238 // WebTextView once again. 3239 mWebTextView.setInPassword(true); 3240 } 3241 } 3242 } 3243 // calculate the intermediate scroll position. As we need to use 3244 // zoomScale, we can't use pinLocX/Y directly. Copy the logic here. 3245 float scale = zoomScale * mInvInitialZoomScale; 3246 int tx = Math.round(scale * (mInitialScrollX + mZoomCenterX) 3247 - mZoomCenterX); 3248 tx = -pinLoc(tx, getViewWidth(), Math.round(mContentWidth 3249 * zoomScale)) + mScrollX; 3250 int titleHeight = getTitleHeight(); 3251 int ty = Math.round(scale 3252 * (mInitialScrollY + mZoomCenterY - titleHeight) 3253 - (mZoomCenterY - titleHeight)); 3254 ty = -(ty <= titleHeight ? Math.max(ty, 0) : pinLoc(ty 3255 - titleHeight, getViewHeight(), Math.round(mContentHeight 3256 * zoomScale)) + titleHeight) + mScrollY; 3257 canvas.translate(tx, ty); 3258 canvas.scale(zoomScale, zoomScale); 3259 if (inEditingMode() && !mNeedToAdjustWebTextView 3260 && mZoomScale != 0) { 3261 // The WebTextView is up. Keep track of this so we can adjust 3262 // its size and placement when we finish zooming 3263 mNeedToAdjustWebTextView = true; 3264 // If it is in password mode, turn it off so it does not draw 3265 // misplaced. 3266 if (nativeFocusCandidateIsPassword()) { 3267 mWebTextView.setInPassword(false); 3268 } 3269 } 3270 } else { 3271 canvas.scale(mActualScale, mActualScale); 3272 } 3273 3274 mWebViewCore.drawContentPicture(canvas, color, 3275 (animateZoom || mPreviewZoomOnly), animateScroll); 3276 if (mNativeClass == 0) return; 3277 // decide which adornments to draw 3278 int extras = DRAW_EXTRAS_NONE; 3279 if (mFindIsUp) { 3280 // When the FindDialog is up, only draw the matches if we are not in 3281 // the process of scrolling them into view. 3282 if (!animateScroll) { 3283 extras = DRAW_EXTRAS_FIND; 3284 } 3285 } else if (mShiftIsPressed) { 3286 if (!animateZoom && !mPreviewZoomOnly) { 3287 extras = DRAW_EXTRAS_SELECTION; 3288 nativeSetSelectionRegion(mTouchSelection || mExtendSelection); 3289 nativeSetSelectionPointer(!mTouchSelection, mInvActualScale, 3290 mSelectX, mSelectY - getTitleHeight(), 3291 mExtendSelection); 3292 } 3293 } else if (drawCursorRing) { 3294 extras = DRAW_EXTRAS_CURSOR_RING; 3295 } 3296 drawExtras(canvas, extras); 3297 3298 if (extras == DRAW_EXTRAS_CURSOR_RING) { 3299 if (mTouchMode == TOUCH_SHORTPRESS_START_MODE) { 3300 mTouchMode = TOUCH_SHORTPRESS_MODE; 3301 HitTestResult hitTest = getHitTestResult(); 3302 if (mPreventLongPress || (hitTest != null && 3303 hitTest.mType != HitTestResult.UNKNOWN_TYPE)) { 3304 mPrivateHandler.sendMessageDelayed(mPrivateHandler 3305 .obtainMessage(SWITCH_TO_LONGPRESS), 3306 LONG_PRESS_TIMEOUT); 3307 } 3308 } 3309 } 3310 if (mFocusSizeChanged) { 3311 mFocusSizeChanged = false; 3312 // If we are zooming, this will get handled above, when the zoom 3313 // finishes. We also do not need to do this unless the WebTextView 3314 // is showing. 3315 if (!animateZoom && inEditingMode()) { 3316 didUpdateTextViewBounds(true); 3317 } 3318 } 3319 } 3320 3321 // draw history 3322 private boolean mDrawHistory = false; 3323 private Picture mHistoryPicture = null; 3324 private int mHistoryWidth = 0; 3325 private int mHistoryHeight = 0; 3326 3327 // Only check the flag, can be called from WebCore thread 3328 boolean drawHistory() { 3329 return mDrawHistory; 3330 } 3331 3332 // Should only be called in UI thread 3333 void switchOutDrawHistory() { 3334 if (null == mWebViewCore) return; // CallbackProxy may trigger this 3335 if (mDrawHistory && mWebViewCore.pictureReady()) { 3336 mDrawHistory = false; 3337 invalidate(); 3338 int oldScrollX = mScrollX; 3339 int oldScrollY = mScrollY; 3340 mScrollX = pinLocX(mScrollX); 3341 mScrollY = pinLocY(mScrollY); 3342 if (oldScrollX != mScrollX || oldScrollY != mScrollY) { 3343 mUserScroll = false; 3344 mWebViewCore.sendMessage(EventHub.SYNC_SCROLL, oldScrollX, 3345 oldScrollY); 3346 } 3347 sendOurVisibleRect(); 3348 } 3349 } 3350 3351 WebViewCore.CursorData cursorData() { 3352 WebViewCore.CursorData result = new WebViewCore.CursorData(); 3353 result.mMoveGeneration = nativeMoveGeneration(); 3354 result.mFrame = nativeCursorFramePointer(); 3355 Point position = nativeCursorPosition(); 3356 result.mX = position.x; 3357 result.mY = position.y; 3358 return result; 3359 } 3360 3361 /** 3362 * Delete text from start to end in the focused textfield. If there is no 3363 * focus, or if start == end, silently fail. If start and end are out of 3364 * order, swap them. 3365 * @param start Beginning of selection to delete. 3366 * @param end End of selection to delete. 3367 */ 3368 /* package */ void deleteSelection(int start, int end) { 3369 mTextGeneration++; 3370 WebViewCore.TextSelectionData data 3371 = new WebViewCore.TextSelectionData(start, end); 3372 mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, mTextGeneration, 0, 3373 data); 3374 } 3375 3376 /** 3377 * Set the selection to (start, end) in the focused textfield. If start and 3378 * end are out of order, swap them. 3379 * @param start Beginning of selection. 3380 * @param end End of selection. 3381 */ 3382 /* package */ void setSelection(int start, int end) { 3383 mWebViewCore.sendMessage(EventHub.SET_SELECTION, start, end); 3384 } 3385 3386 @Override 3387 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3388 InputConnection connection = super.onCreateInputConnection(outAttrs); 3389 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_FULLSCREEN; 3390 return connection; 3391 } 3392 3393 /** 3394 * Called in response to a message from webkit telling us that the soft 3395 * keyboard should be launched. 3396 */ 3397 private void displaySoftKeyboard(boolean isTextView) { 3398 InputMethodManager imm = (InputMethodManager) 3399 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 3400 3401 // bring it back to the default scale so that user can enter text 3402 boolean zoom = mActualScale < mDefaultScale; 3403 if (zoom) { 3404 mInZoomOverview = false; 3405 mZoomCenterX = mLastTouchX; 3406 mZoomCenterY = mLastTouchY; 3407 // do not change text wrap scale so that there is no reflow 3408 setNewZoomScale(mDefaultScale, false, false); 3409 } 3410 if (isTextView) { 3411 rebuildWebTextView(); 3412 if (inEditingMode()) { 3413 imm.showSoftInput(mWebTextView, 0); 3414 if (zoom) { 3415 didUpdateTextViewBounds(true); 3416 } 3417 return; 3418 } 3419 } 3420 // Used by plugins. 3421 // Also used if the navigation cache is out of date, and 3422 // does not recognize that a textfield is in focus. In that 3423 // case, use WebView as the targeted view. 3424 // see http://b/issue?id=2457459 3425 imm.showSoftInput(this, 0); 3426 } 3427 3428 // Called by WebKit to instruct the UI to hide the keyboard 3429 private void hideSoftKeyboard() { 3430 InputMethodManager imm = (InputMethodManager) 3431 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 3432 3433 imm.hideSoftInputFromWindow(this.getWindowToken(), 0); 3434 } 3435 3436 /* 3437 * This method checks the current focus and cursor and potentially rebuilds 3438 * mWebTextView to have the appropriate properties, such as password, 3439 * multiline, and what text it contains. It also removes it if necessary. 3440 */ 3441 /* package */ void rebuildWebTextView() { 3442 // If the WebView does not have focus, do nothing until it gains focus. 3443 if (!hasFocus() && (null == mWebTextView || !mWebTextView.hasFocus())) { 3444 return; 3445 } 3446 boolean alreadyThere = inEditingMode(); 3447 // inEditingMode can only return true if mWebTextView is non-null, 3448 // so we can safely call remove() if (alreadyThere) 3449 if (0 == mNativeClass || !nativeFocusCandidateIsTextInput()) { 3450 if (alreadyThere) { 3451 mWebTextView.remove(); 3452 } 3453 return; 3454 } 3455 // At this point, we know we have found an input field, so go ahead 3456 // and create the WebTextView if necessary. 3457 if (mWebTextView == null) { 3458 mWebTextView = new WebTextView(mContext, WebView.this); 3459 // Initialize our generation number. 3460 mTextGeneration = 0; 3461 } 3462 mWebTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX, 3463 contentToViewDimension(nativeFocusCandidateTextSize())); 3464 Rect visibleRect = new Rect(); 3465 calcOurContentVisibleRect(visibleRect); 3466 // Note that sendOurVisibleRect calls viewToContent, so the coordinates 3467 // should be in content coordinates. 3468 Rect bounds = nativeFocusCandidateNodeBounds(); 3469 Rect vBox = contentToViewRect(bounds); 3470 mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), vBox.height()); 3471 if (!Rect.intersects(bounds, visibleRect)) { 3472 mWebTextView.bringIntoView(); 3473 } 3474 String text = nativeFocusCandidateText(); 3475 int nodePointer = nativeFocusCandidatePointer(); 3476 if (alreadyThere && mWebTextView.isSameTextField(nodePointer)) { 3477 // It is possible that we have the same textfield, but it has moved, 3478 // i.e. In the case of opening/closing the screen. 3479 // In that case, we need to set the dimensions, but not the other 3480 // aspects. 3481 // If the text has been changed by webkit, update it. However, if 3482 // there has been more UI text input, ignore it. We will receive 3483 // another update when that text is recognized. 3484 if (text != null && !text.equals(mWebTextView.getText().toString()) 3485 && nativeTextGeneration() == mTextGeneration) { 3486 mWebTextView.setTextAndKeepSelection(text); 3487 } 3488 } else { 3489 mWebTextView.setGravity(nativeFocusCandidateIsRtlText() ? 3490 Gravity.RIGHT : Gravity.NO_GRAVITY); 3491 // This needs to be called before setType, which may call 3492 // requestFormData, and it needs to have the correct nodePointer. 3493 mWebTextView.setNodePointer(nodePointer); 3494 mWebTextView.setType(nativeFocusCandidateType()); 3495 if (null == text) { 3496 if (DebugFlags.WEB_VIEW) { 3497 Log.v(LOGTAG, "rebuildWebTextView null == text"); 3498 } 3499 text = ""; 3500 } 3501 mWebTextView.setTextAndKeepSelection(text); 3502 InputMethodManager imm = InputMethodManager.peekInstance(); 3503 if (imm != null && imm.isActive(mWebTextView)) { 3504 imm.restartInput(mWebTextView); 3505 } 3506 } 3507 mWebTextView.requestFocus(); 3508 } 3509 3510 /** 3511 * Called by WebTextView to find saved form data associated with the 3512 * textfield 3513 * @param name Name of the textfield. 3514 * @param nodePointer Pointer to the node of the textfield, so it can be 3515 * compared to the currently focused textfield when the data is 3516 * retrieved. 3517 */ 3518 /* package */ void requestFormData(String name, int nodePointer) { 3519 if (mWebViewCore.getSettings().getSaveFormData()) { 3520 Message update = mPrivateHandler.obtainMessage(REQUEST_FORM_DATA); 3521 update.arg1 = nodePointer; 3522 RequestFormData updater = new RequestFormData(name, getUrl(), 3523 update); 3524 Thread t = new Thread(updater); 3525 t.start(); 3526 } 3527 } 3528 3529 /** 3530 * Pass a message to find out the <label> associated with the <input> 3531 * identified by nodePointer 3532 * @param framePointer Pointer to the frame containing the <input> node 3533 * @param nodePointer Pointer to the node for which a <label> is desired. 3534 */ 3535 /* package */ void requestLabel(int framePointer, int nodePointer) { 3536 mWebViewCore.sendMessage(EventHub.REQUEST_LABEL, framePointer, 3537 nodePointer); 3538 } 3539 3540 /* 3541 * This class requests an Adapter for the WebTextView which shows past 3542 * entries stored in the database. It is a Runnable so that it can be done 3543 * in its own thread, without slowing down the UI. 3544 */ 3545 private class RequestFormData implements Runnable { 3546 private String mName; 3547 private String mUrl; 3548 private Message mUpdateMessage; 3549 3550 public RequestFormData(String name, String url, Message msg) { 3551 mName = name; 3552 mUrl = url; 3553 mUpdateMessage = msg; 3554 } 3555 3556 public void run() { 3557 ArrayList<String> pastEntries = mDatabase.getFormData(mUrl, mName); 3558 if (pastEntries.size() > 0) { 3559 AutoCompleteAdapter adapter = new 3560 AutoCompleteAdapter(mContext, pastEntries); 3561 mUpdateMessage.obj = adapter; 3562 mUpdateMessage.sendToTarget(); 3563 } 3564 } 3565 } 3566 3567 /** 3568 * Dump the display tree to "/sdcard/displayTree.txt" 3569 * 3570 * @hide debug only 3571 */ 3572 public void dumpDisplayTree() { 3573 nativeDumpDisplayTree(getUrl()); 3574 } 3575 3576 /** 3577 * Dump the dom tree to adb shell if "toFile" is False, otherwise dump it to 3578 * "/sdcard/domTree.txt" 3579 * 3580 * @hide debug only 3581 */ 3582 public void dumpDomTree(boolean toFile) { 3583 mWebViewCore.sendMessage(EventHub.DUMP_DOMTREE, toFile ? 1 : 0, 0); 3584 } 3585 3586 /** 3587 * Dump the render tree to adb shell if "toFile" is False, otherwise dump it 3588 * to "/sdcard/renderTree.txt" 3589 * 3590 * @hide debug only 3591 */ 3592 public void dumpRenderTree(boolean toFile) { 3593 mWebViewCore.sendMessage(EventHub.DUMP_RENDERTREE, toFile ? 1 : 0, 0); 3594 } 3595 3596 /** 3597 * Dump the V8 counters to standard output. 3598 * Note that you need a build with V8 and WEBCORE_INSTRUMENTATION set to 3599 * true. Otherwise, this will do nothing. 3600 * 3601 * @hide debug only 3602 */ 3603 public void dumpV8Counters() { 3604 mWebViewCore.sendMessage(EventHub.DUMP_V8COUNTERS); 3605 } 3606 3607 // This is used to determine long press with the center key. Does not 3608 // affect long press with the trackball/touch. 3609 private boolean mGotCenterDown = false; 3610 3611 @Override 3612 public boolean onKeyDown(int keyCode, KeyEvent event) { 3613 if (DebugFlags.WEB_VIEW) { 3614 Log.v(LOGTAG, "keyDown at " + System.currentTimeMillis() 3615 + ", " + event + ", unicode=" + event.getUnicodeChar()); 3616 } 3617 3618 if (mNativeClass == 0) { 3619 return false; 3620 } 3621 3622 // do this hack up front, so it always works, regardless of touch-mode 3623 if (AUTO_REDRAW_HACK && (keyCode == KeyEvent.KEYCODE_CALL)) { 3624 mAutoRedraw = !mAutoRedraw; 3625 if (mAutoRedraw) { 3626 invalidate(); 3627 } 3628 return true; 3629 } 3630 3631 // Bubble up the key event if 3632 // 1. it is a system key; or 3633 // 2. the host application wants to handle it; 3634 if (event.isSystem() 3635 || mCallbackProxy.uiOverrideKeyEvent(event)) { 3636 return false; 3637 } 3638 3639 if (mShiftIsPressed == false && nativeCursorWantsKeyEvents() == false 3640 && (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT 3641 || keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT)) { 3642 setUpSelectXY(); 3643 } 3644 3645 if (keyCode >= KeyEvent.KEYCODE_DPAD_UP 3646 && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { 3647 // always handle the navigation keys in the UI thread 3648 switchOutDrawHistory(); 3649 if (mShiftIsPressed) { 3650 int xRate = keyCode == KeyEvent.KEYCODE_DPAD_LEFT 3651 ? -1 : keyCode == KeyEvent.KEYCODE_DPAD_RIGHT ? 1 : 0; 3652 int yRate = keyCode == KeyEvent.KEYCODE_DPAD_UP ? 3653 -1 : keyCode == KeyEvent.KEYCODE_DPAD_DOWN ? 1 : 0; 3654 int multiplier = event.getRepeatCount() + 1; 3655 moveSelection(xRate * multiplier, yRate * multiplier); 3656 return true; 3657 } 3658 if (navHandledKey(keyCode, 1, false, event.getEventTime(), false)) { 3659 playSoundEffect(keyCodeToSoundsEffect(keyCode)); 3660 return true; 3661 } 3662 // Bubble up the key event as WebView doesn't handle it 3663 return false; 3664 } 3665 3666 if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { 3667 switchOutDrawHistory(); 3668 if (event.getRepeatCount() == 0) { 3669 if (mShiftIsPressed) { 3670 return true; // discard press if copy in progress 3671 } 3672 mGotCenterDown = true; 3673 mPrivateHandler.sendMessageDelayed(mPrivateHandler 3674 .obtainMessage(LONG_PRESS_CENTER), LONG_PRESS_TIMEOUT); 3675 // Already checked mNativeClass, so we do not need to check it 3676 // again. 3677 nativeRecordButtons(hasFocus() && hasWindowFocus(), true, true); 3678 return true; 3679 } 3680 // Bubble up the key event as WebView doesn't handle it 3681 return false; 3682 } 3683 3684 if (keyCode != KeyEvent.KEYCODE_SHIFT_LEFT 3685 && keyCode != KeyEvent.KEYCODE_SHIFT_RIGHT) { 3686 // turn off copy select if a shift-key combo is pressed 3687 mExtendSelection = mShiftIsPressed = false; 3688 if (mTouchMode == TOUCH_SELECT_MODE) { 3689 mTouchMode = TOUCH_INIT_MODE; 3690 } 3691 } 3692 3693 if (getSettings().getNavDump()) { 3694 switch (keyCode) { 3695 case KeyEvent.KEYCODE_4: 3696 dumpDisplayTree(); 3697 break; 3698 case KeyEvent.KEYCODE_5: 3699 case KeyEvent.KEYCODE_6: 3700 dumpDomTree(keyCode == KeyEvent.KEYCODE_5); 3701 break; 3702 case KeyEvent.KEYCODE_7: 3703 case KeyEvent.KEYCODE_8: 3704 dumpRenderTree(keyCode == KeyEvent.KEYCODE_7); 3705 break; 3706 case KeyEvent.KEYCODE_9: 3707 nativeInstrumentReport(); 3708 return true; 3709 } 3710 } 3711 3712 if (nativeCursorIsTextInput()) { 3713 // This message will put the node in focus, for the DOM's notion 3714 // of focus, and make the focuscontroller active 3715 mWebViewCore.sendMessage(EventHub.CLICK, nativeCursorFramePointer(), 3716 nativeCursorNodePointer()); 3717 // This will bring up the WebTextView and put it in focus, for 3718 // our view system's notion of focus 3719 rebuildWebTextView(); 3720 // Now we need to pass the event to it 3721 if (inEditingMode()) { 3722 mWebTextView.setDefaultSelection(); 3723 return mWebTextView.dispatchKeyEvent(event); 3724 } 3725 } else if (nativeHasFocusNode()) { 3726 // In this case, the cursor is not on a text input, but the focus 3727 // might be. Check it, and if so, hand over to the WebTextView. 3728 rebuildWebTextView(); 3729 if (inEditingMode()) { 3730 mWebTextView.setDefaultSelection(); 3731 return mWebTextView.dispatchKeyEvent(event); 3732 } 3733 } 3734 3735 // TODO: should we pass all the keys to DOM or check the meta tag 3736 if (nativeCursorWantsKeyEvents() || true) { 3737 // pass the key to DOM 3738 mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); 3739 // return true as DOM handles the key 3740 return true; 3741 } 3742 3743 // Bubble up the key event as WebView doesn't handle it 3744 return false; 3745 } 3746 3747 @Override 3748 public boolean onKeyUp(int keyCode, KeyEvent event) { 3749 if (DebugFlags.WEB_VIEW) { 3750 Log.v(LOGTAG, "keyUp at " + System.currentTimeMillis() 3751 + ", " + event + ", unicode=" + event.getUnicodeChar()); 3752 } 3753 3754 if (mNativeClass == 0) { 3755 return false; 3756 } 3757 3758 // special CALL handling when cursor node's href is "tel:XXX" 3759 if (keyCode == KeyEvent.KEYCODE_CALL && nativeHasCursorNode()) { 3760 String text = nativeCursorText(); 3761 if (!nativeCursorIsTextInput() && text != null 3762 && text.startsWith(SCHEME_TEL)) { 3763 Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse(text)); 3764 getContext().startActivity(intent); 3765 return true; 3766 } 3767 } 3768 3769 // Bubble up the key event if 3770 // 1. it is a system key; or 3771 // 2. the host application wants to handle it; 3772 if (event.isSystem() || mCallbackProxy.uiOverrideKeyEvent(event)) { 3773 return false; 3774 } 3775 3776 if (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT 3777 || keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT) { 3778 if (commitCopy()) { 3779 return true; 3780 } 3781 } 3782 3783 if (keyCode >= KeyEvent.KEYCODE_DPAD_UP 3784 && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { 3785 // always handle the navigation keys in the UI thread 3786 // Bubble up the key event as WebView doesn't handle it 3787 return false; 3788 } 3789 3790 if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { 3791 // remove the long press message first 3792 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 3793 mGotCenterDown = false; 3794 3795 if (mShiftIsPressed) { 3796 if (mExtendSelection) { 3797 commitCopy(); 3798 } else { 3799 mExtendSelection = true; 3800 invalidate(); // draw the i-beam instead of the arrow 3801 } 3802 return true; // discard press if copy in progress 3803 } 3804 3805 // perform the single click 3806 Rect visibleRect = sendOurVisibleRect(); 3807 // Note that sendOurVisibleRect calls viewToContent, so the 3808 // coordinates should be in content coordinates. 3809 if (!nativeCursorIntersects(visibleRect)) { 3810 return false; 3811 } 3812 WebViewCore.CursorData data = cursorData(); 3813 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, data); 3814 playSoundEffect(SoundEffectConstants.CLICK); 3815 if (nativeCursorIsTextInput()) { 3816 rebuildWebTextView(); 3817 centerKeyPressOnTextField(); 3818 if (inEditingMode()) { 3819 mWebTextView.setDefaultSelection(); 3820 } 3821 return true; 3822 } 3823 clearTextEntry(true); 3824 nativeSetFollowedLink(true); 3825 if (!mCallbackProxy.uiOverrideUrlLoading(nativeCursorText())) { 3826 mWebViewCore.sendMessage(EventHub.CLICK, data.mFrame, 3827 nativeCursorNodePointer()); 3828 } 3829 return true; 3830 } 3831 3832 // TODO: should we pass all the keys to DOM or check the meta tag 3833 if (nativeCursorWantsKeyEvents() || true) { 3834 // pass the key to DOM 3835 mWebViewCore.sendMessage(EventHub.KEY_UP, event); 3836 // return true as DOM handles the key 3837 return true; 3838 } 3839 3840 // Bubble up the key event as WebView doesn't handle it 3841 return false; 3842 } 3843 3844 private void setUpSelectXY() { 3845 mExtendSelection = false; 3846 mShiftIsPressed = true; 3847 if (nativeHasCursorNode()) { 3848 Rect rect = nativeCursorNodeBounds(); 3849 mSelectX = contentToViewX(rect.left); 3850 mSelectY = contentToViewY(rect.top); 3851 } else if (mLastTouchY > getVisibleTitleHeight()) { 3852 mSelectX = mScrollX + (int) mLastTouchX; 3853 mSelectY = mScrollY + (int) mLastTouchY; 3854 } else { 3855 mSelectX = mScrollX + getViewWidth() / 2; 3856 mSelectY = mScrollY + getViewHeightWithTitle() / 2; 3857 } 3858 nativeHideCursor(); 3859 } 3860 3861 public void emulateShiftHeld() { 3862 if (0 == mNativeClass) return; // client isn't initialized 3863 setUpSelectXY(); 3864 } 3865 3866 private boolean commitCopy() { 3867 boolean copiedSomething = false; 3868 if (mExtendSelection) { 3869 String selection = nativeGetSelection(); 3870 if (selection != "") { 3871 if (DebugFlags.WEB_VIEW) { 3872 Log.v(LOGTAG, "commitCopy \"" + selection + "\""); 3873 } 3874 Toast.makeText(mContext 3875 , com.android.internal.R.string.text_copied 3876 , Toast.LENGTH_SHORT).show(); 3877 copiedSomething = true; 3878 try { 3879 IClipboard clip = IClipboard.Stub.asInterface( 3880 ServiceManager.getService("clipboard")); 3881 clip.setClipboardText(selection); 3882 } catch (android.os.RemoteException e) { 3883 Log.e(LOGTAG, "Clipboard failed", e); 3884 } 3885 } 3886 mExtendSelection = false; 3887 } 3888 mShiftIsPressed = false; 3889 invalidate(); // remove selection region and pointer 3890 if (mTouchMode == TOUCH_SELECT_MODE) { 3891 mTouchMode = TOUCH_INIT_MODE; 3892 } 3893 return copiedSomething; 3894 } 3895 3896 @Override 3897 protected void onAttachedToWindow() { 3898 super.onAttachedToWindow(); 3899 if (hasWindowFocus()) onWindowFocusChanged(true); 3900 } 3901 3902 @Override 3903 protected void onDetachedFromWindow() { 3904 clearTextEntry(false); 3905 super.onDetachedFromWindow(); 3906 // Clean up the zoom controller 3907 mZoomButtonsController.setVisible(false); 3908 } 3909 3910 /** 3911 * @deprecated WebView no longer needs to implement 3912 * ViewGroup.OnHierarchyChangeListener. This method does nothing now. 3913 */ 3914 @Deprecated 3915 public void onChildViewAdded(View parent, View child) {} 3916 3917 /** 3918 * @deprecated WebView no longer needs to implement 3919 * ViewGroup.OnHierarchyChangeListener. This method does nothing now. 3920 */ 3921 @Deprecated 3922 public void onChildViewRemoved(View p, View child) {} 3923 3924 /** 3925 * @deprecated WebView should not have implemented 3926 * ViewTreeObserver.OnGlobalFocusChangeListener. This method 3927 * does nothing now. 3928 */ 3929 @Deprecated 3930 public void onGlobalFocusChanged(View oldFocus, View newFocus) { 3931 } 3932 3933 // To avoid drawing the cursor ring, and remove the TextView when our window 3934 // loses focus. 3935 @Override 3936 public void onWindowFocusChanged(boolean hasWindowFocus) { 3937 if (hasWindowFocus) { 3938 if (hasFocus()) { 3939 // If our window regained focus, and we have focus, then begin 3940 // drawing the cursor ring 3941 mDrawCursorRing = true; 3942 if (mNativeClass != 0) { 3943 nativeRecordButtons(true, false, true); 3944 if (inEditingMode()) { 3945 mWebViewCore.sendMessage(EventHub.SET_ACTIVE, 1, 0); 3946 } 3947 } 3948 } else { 3949 // If our window gained focus, but we do not have it, do not 3950 // draw the cursor ring. 3951 mDrawCursorRing = false; 3952 // We do not call nativeRecordButtons here because we assume 3953 // that when we lost focus, or window focus, it got called with 3954 // false for the first parameter 3955 } 3956 } else { 3957 if (getSettings().getBuiltInZoomControls() && !mZoomButtonsController.isVisible()) { 3958 /* 3959 * The zoom controls come in their own window, so our window 3960 * loses focus. Our policy is to not draw the cursor ring if 3961 * our window is not focused, but this is an exception since 3962 * the user can still navigate the web page with the zoom 3963 * controls showing. 3964 */ 3965 // If our window has lost focus, stop drawing the cursor ring 3966 mDrawCursorRing = false; 3967 } 3968 mGotKeyDown = false; 3969 mShiftIsPressed = false; 3970 if (mNativeClass != 0) { 3971 nativeRecordButtons(false, false, true); 3972 } 3973 setFocusControllerInactive(); 3974 } 3975 invalidate(); 3976 super.onWindowFocusChanged(hasWindowFocus); 3977 } 3978 3979 /* 3980 * Pass a message to WebCore Thread, telling the WebCore::Page's 3981 * FocusController to be "inactive" so that it will 3982 * not draw the blinking cursor. It gets set to "active" to draw the cursor 3983 * in WebViewCore.cpp, when the WebCore thread receives key events/clicks. 3984 */ 3985 /* package */ void setFocusControllerInactive() { 3986 // Do not need to also check whether mWebViewCore is null, because 3987 // mNativeClass is only set if mWebViewCore is non null 3988 if (mNativeClass == 0) return; 3989 mWebViewCore.sendMessage(EventHub.SET_ACTIVE, 0, 0); 3990 } 3991 3992 @Override 3993 protected void onFocusChanged(boolean focused, int direction, 3994 Rect previouslyFocusedRect) { 3995 if (DebugFlags.WEB_VIEW) { 3996 Log.v(LOGTAG, "MT focusChanged " + focused + ", " + direction); 3997 } 3998 if (focused) { 3999 // When we regain focus, if we have window focus, resume drawing 4000 // the cursor ring 4001 if (hasWindowFocus()) { 4002 mDrawCursorRing = true; 4003 if (mNativeClass != 0) { 4004 nativeRecordButtons(true, false, true); 4005 } 4006 //} else { 4007 // The WebView has gained focus while we do not have 4008 // windowfocus. When our window lost focus, we should have 4009 // called nativeRecordButtons(false...) 4010 } 4011 } else { 4012 // When we lost focus, unless focus went to the TextView (which is 4013 // true if we are in editing mode), stop drawing the cursor ring. 4014 if (!inEditingMode()) { 4015 mDrawCursorRing = false; 4016 if (mNativeClass != 0) { 4017 nativeRecordButtons(false, false, true); 4018 } 4019 setFocusControllerInactive(); 4020 } 4021 mGotKeyDown = false; 4022 } 4023 4024 super.onFocusChanged(focused, direction, previouslyFocusedRect); 4025 } 4026 4027 /** 4028 * @hide 4029 */ 4030 @Override 4031 protected boolean setFrame(int left, int top, int right, int bottom) { 4032 boolean changed = super.setFrame(left, top, right, bottom); 4033 if (!changed && mHeightCanMeasure) { 4034 // When mHeightCanMeasure is true, we will set mLastHeightSent to 0 4035 // in WebViewCore after we get the first layout. We do call 4036 // requestLayout() when we get contentSizeChanged(). But the View 4037 // system won't call onSizeChanged if the dimension is not changed. 4038 // In this case, we need to call sendViewSizeZoom() explicitly to 4039 // notify the WebKit about the new dimensions. 4040 sendViewSizeZoom(); 4041 } 4042 return changed; 4043 } 4044 4045 private static class PostScale implements Runnable { 4046 final WebView mWebView; 4047 final boolean mUpdateTextWrap; 4048 4049 public PostScale(WebView webView, boolean updateTextWrap) { 4050 mWebView = webView; 4051 mUpdateTextWrap = updateTextWrap; 4052 } 4053 4054 public void run() { 4055 if (mWebView.mWebViewCore != null) { 4056 // we always force, in case our height changed, in which case we 4057 // still want to send the notification over to webkit. 4058 mWebView.setNewZoomScale(mWebView.mActualScale, 4059 mUpdateTextWrap, true); 4060 // update the zoom buttons as the scale can be changed 4061 if (mWebView.getSettings().getBuiltInZoomControls()) { 4062 mWebView.updateZoomButtonsEnabled(); 4063 } 4064 } 4065 } 4066 } 4067 4068 @Override 4069 protected void onSizeChanged(int w, int h, int ow, int oh) { 4070 super.onSizeChanged(w, h, ow, oh); 4071 // Center zooming to the center of the screen. 4072 if (mZoomScale == 0) { // unless we're already zooming 4073 // To anchor at top left corner. 4074 mZoomCenterX = 0; 4075 mZoomCenterY = getVisibleTitleHeight(); 4076 mAnchorX = viewToContentX((int) mZoomCenterX + mScrollX); 4077 mAnchorY = viewToContentY((int) mZoomCenterY + mScrollY); 4078 } 4079 4080 // adjust the max viewport width depending on the view dimensions. This 4081 // is to ensure the scaling is not going insane. So do not shrink it if 4082 // the view size is temporarily smaller, e.g. when soft keyboard is up. 4083 int newMaxViewportWidth = (int) (Math.max(w, h) / DEFAULT_MIN_ZOOM_SCALE); 4084 if (newMaxViewportWidth > sMaxViewportWidth) { 4085 sMaxViewportWidth = newMaxViewportWidth; 4086 } 4087 4088 // update mMinZoomScale if the minimum zoom scale is not fixed 4089 if (!mMinZoomScaleFixed) { 4090 // when change from narrow screen to wide screen, the new viewWidth 4091 // can be wider than the old content width. We limit the minimum 4092 // scale to 1.0f. The proper minimum scale will be calculated when 4093 // the new picture shows up. 4094 mMinZoomScale = Math.min(1.0f, (float) getViewWidth() 4095 / (mDrawHistory ? mHistoryPicture.getWidth() 4096 : mZoomOverviewWidth)); 4097 if (mInitialScaleInPercent > 0) { 4098 // limit the minZoomScale to the initialScale if it is set 4099 float initialScale = mInitialScaleInPercent / 100.0f; 4100 if (mMinZoomScale > initialScale) { 4101 mMinZoomScale = initialScale; 4102 } 4103 } 4104 } 4105 4106 // onSizeChanged() is called during WebView layout. And any 4107 // requestLayout() is blocked during layout. As setNewZoomScale() will 4108 // call its child View to reposition itself through ViewManager's 4109 // scaleAll(), we need to post a Runnable to ensure requestLayout(). 4110 // <b/> 4111 // only update the text wrap scale if width changed. 4112 post(new PostScale(this, w != ow)); 4113 } 4114 4115 @Override 4116 protected void onScrollChanged(int l, int t, int oldl, int oldt) { 4117 super.onScrollChanged(l, t, oldl, oldt); 4118 sendOurVisibleRect(); 4119 // update WebKit if visible title bar height changed. The logic is same 4120 // as getVisibleTitleHeight. 4121 int titleHeight = getTitleHeight(); 4122 if (Math.max(titleHeight - t, 0) != Math.max(titleHeight - oldt, 0)) { 4123 sendViewSizeZoom(); 4124 } 4125 } 4126 4127 @Override 4128 public boolean dispatchKeyEvent(KeyEvent event) { 4129 boolean dispatch = true; 4130 4131 if (!inEditingMode()) { 4132 if (event.getAction() == KeyEvent.ACTION_DOWN) { 4133 mGotKeyDown = true; 4134 } else { 4135 if (!mGotKeyDown) { 4136 /* 4137 * We got a key up for which we were not the recipient of 4138 * the original key down. Don't give it to the view. 4139 */ 4140 dispatch = false; 4141 } 4142 mGotKeyDown = false; 4143 } 4144 } 4145 4146 if (dispatch) { 4147 return super.dispatchKeyEvent(event); 4148 } else { 4149 // We didn't dispatch, so let something else handle the key 4150 return false; 4151 } 4152 } 4153 4154 // Here are the snap align logic: 4155 // 1. If it starts nearly horizontally or vertically, snap align; 4156 // 2. If there is a dramitic direction change, let it go; 4157 // 3. If there is a same direction back and forth, lock it. 4158 4159 // adjustable parameters 4160 private int mMinLockSnapReverseDistance; 4161 private static final float MAX_SLOPE_FOR_DIAG = 1.5f; 4162 private static final int MIN_BREAK_SNAP_CROSS_DISTANCE = 80; 4163 4164 private static int sign(float x) { 4165 return x > 0 ? 1 : (x < 0 ? -1 : 0); 4166 } 4167 4168 // if the page can scroll <= this value, we won't allow the drag tracker 4169 // to have any effect. 4170 private static final int MIN_SCROLL_AMOUNT_TO_DISABLE_DRAG_TRACKER = 4; 4171 4172 private class DragTrackerHandler { 4173 private final DragTracker mProxy; 4174 private final float mStartY, mStartX; 4175 private final float mMinDY, mMinDX; 4176 private final float mMaxDY, mMaxDX; 4177 private float mCurrStretchY, mCurrStretchX; 4178 private int mSX, mSY; 4179 private Interpolator mInterp; 4180 private float[] mXY = new float[2]; 4181 4182 // inner (non-state) classes can't have enums :( 4183 private static final int DRAGGING_STATE = 0; 4184 private static final int ANIMATING_STATE = 1; 4185 private static final int FINISHED_STATE = 2; 4186 private int mState; 4187 4188 public DragTrackerHandler(float x, float y, DragTracker proxy) { 4189 mProxy = proxy; 4190 4191 int docBottom = computeVerticalScrollRange() + getTitleHeight(); 4192 int viewTop = getScrollY(); 4193 int viewBottom = viewTop + getHeight(); 4194 4195 mStartY = y; 4196 mMinDY = -viewTop; 4197 mMaxDY = docBottom - viewBottom; 4198 4199 if (DebugFlags.DRAG_TRACKER || DEBUG_DRAG_TRACKER) { 4200 Log.d(DebugFlags.DRAG_TRACKER_LOGTAG, " dragtracker y= " + y + 4201 " up/down= " + mMinDY + " " + mMaxDY); 4202 } 4203 4204 int docRight = computeHorizontalScrollRange(); 4205 int viewLeft = getScrollX(); 4206 int viewRight = viewLeft + getWidth(); 4207 mStartX = x; 4208 mMinDX = -viewLeft; 4209 mMaxDX = docRight - viewRight; 4210 4211 mState = DRAGGING_STATE; 4212 mProxy.onStartDrag(x, y); 4213 4214 // ensure we buildBitmap at least once 4215 mSX = -99999; 4216 } 4217 4218 private float computeStretch(float delta, float min, float max) { 4219 float stretch = 0; 4220 if (max - min > MIN_SCROLL_AMOUNT_TO_DISABLE_DRAG_TRACKER) { 4221 if (delta < min) { 4222 stretch = delta - min; 4223 } else if (delta > max) { 4224 stretch = delta - max; 4225 } 4226 } 4227 return stretch; 4228 } 4229 4230 public void dragTo(float x, float y) { 4231 float sy = computeStretch(mStartY - y, mMinDY, mMaxDY); 4232 float sx = computeStretch(mStartX - x, mMinDX, mMaxDX); 4233 4234 if ((mSnapScrollMode & SNAP_X) != 0) { 4235 sy = 0; 4236 } else if ((mSnapScrollMode & SNAP_Y) != 0) { 4237 sx = 0; 4238 } 4239 4240 if (mCurrStretchX != sx || mCurrStretchY != sy) { 4241 mCurrStretchX = sx; 4242 mCurrStretchY = sy; 4243 if (DebugFlags.DRAG_TRACKER || DEBUG_DRAG_TRACKER) { 4244 Log.d(DebugFlags.DRAG_TRACKER_LOGTAG, "---- stretch " + sx + 4245 " " + sy); 4246 } 4247 if (mProxy.onStretchChange(sx, sy)) { 4248 invalidate(); 4249 } 4250 } 4251 } 4252 4253 public void stopDrag() { 4254 final int DURATION = 200; 4255 int now = (int)SystemClock.uptimeMillis(); 4256 mInterp = new Interpolator(2); 4257 mXY[0] = mCurrStretchX; 4258 mXY[1] = mCurrStretchY; 4259 // float[] blend = new float[] { 0.5f, 0, 0.75f, 1 }; 4260 float[] blend = new float[] { 0, 0.5f, 0.75f, 1 }; 4261 mInterp.setKeyFrame(0, now, mXY, blend); 4262 float[] zerozero = new float[] { 0, 0 }; 4263 mInterp.setKeyFrame(1, now + DURATION, zerozero, null); 4264 mState = ANIMATING_STATE; 4265 4266 if (DebugFlags.DRAG_TRACKER || DEBUG_DRAG_TRACKER) { 4267 Log.d(DebugFlags.DRAG_TRACKER_LOGTAG, "----- stopDrag, starting animation"); 4268 } 4269 } 4270 4271 // Call this after each draw. If it ruturns null, the tracker is done 4272 public boolean isFinished() { 4273 return mState == FINISHED_STATE; 4274 } 4275 4276 private int hiddenHeightOfTitleBar() { 4277 return getTitleHeight() - getVisibleTitleHeight(); 4278 } 4279 4280 // need a way to know if 565 or 8888 is the right config for 4281 // capturing the display and giving it to the drag proxy 4282 private Bitmap.Config offscreenBitmapConfig() { 4283 // hard code 565 for now 4284 return Bitmap.Config.RGB_565; 4285 } 4286 4287 /* If the tracker draws, then this returns true, otherwise it will 4288 return false, and draw nothing. 4289 */ 4290 public boolean draw(Canvas canvas) { 4291 if (mCurrStretchX != 0 || mCurrStretchY != 0) { 4292 int sx = getScrollX(); 4293 int sy = getScrollY() - hiddenHeightOfTitleBar(); 4294 if (mSX != sx || mSY != sy) { 4295 buildBitmap(sx, sy); 4296 mSX = sx; 4297 mSY = sy; 4298 } 4299 4300 if (mState == ANIMATING_STATE) { 4301 Interpolator.Result result = mInterp.timeToValues(mXY); 4302 if (result == Interpolator.Result.FREEZE_END) { 4303 mState = FINISHED_STATE; 4304 return false; 4305 } else { 4306 mProxy.onStretchChange(mXY[0], mXY[1]); 4307 invalidate(); 4308 // fall through to the draw 4309 } 4310 } 4311 int count = canvas.save(Canvas.MATRIX_SAVE_FLAG); 4312 canvas.translate(sx, sy); 4313 mProxy.onDraw(canvas); 4314 canvas.restoreToCount(count); 4315 return true; 4316 } 4317 if (DebugFlags.DRAG_TRACKER || DEBUG_DRAG_TRACKER) { 4318 Log.d(DebugFlags.DRAG_TRACKER_LOGTAG, " -- draw false " + 4319 mCurrStretchX + " " + mCurrStretchY); 4320 } 4321 return false; 4322 } 4323 4324 private void buildBitmap(int sx, int sy) { 4325 int w = getWidth(); 4326 int h = getViewHeight(); 4327 Bitmap bm = Bitmap.createBitmap(w, h, offscreenBitmapConfig()); 4328 Canvas canvas = new Canvas(bm); 4329 canvas.translate(-sx, -sy); 4330 drawContent(canvas); 4331 4332 if (DebugFlags.DRAG_TRACKER || DEBUG_DRAG_TRACKER) { 4333 Log.d(DebugFlags.DRAG_TRACKER_LOGTAG, "--- buildBitmap " + sx + 4334 " " + sy + " " + w + " " + h); 4335 } 4336 mProxy.onBitmapChange(bm); 4337 } 4338 } 4339 4340 /** @hide */ 4341 public static class DragTracker { 4342 public void onStartDrag(float x, float y) {} 4343 public boolean onStretchChange(float sx, float sy) { 4344 // return true to have us inval the view 4345 return false; 4346 } 4347 public void onStopDrag() {} 4348 public void onBitmapChange(Bitmap bm) {} 4349 public void onDraw(Canvas canvas) {} 4350 } 4351 4352 /** @hide */ 4353 public DragTracker getDragTracker() { 4354 return mDragTracker; 4355 } 4356 4357 /** @hide */ 4358 public void setDragTracker(DragTracker tracker) { 4359 mDragTracker = tracker; 4360 } 4361 4362 private DragTracker mDragTracker; 4363 private DragTrackerHandler mDragTrackerHandler; 4364 4365 private class ScaleDetectorListener implements 4366 ScaleGestureDetector.OnScaleGestureListener { 4367 4368 public boolean onScaleBegin(ScaleGestureDetector detector) { 4369 // cancel the single touch handling 4370 cancelTouch(); 4371 if (mZoomButtonsController.isVisible()) { 4372 mZoomButtonsController.setVisible(false); 4373 } 4374 // reset the zoom overview mode so that the page won't auto grow 4375 mInZoomOverview = false; 4376 // If it is in password mode, turn it off so it does not draw 4377 // misplaced. 4378 if (inEditingMode() && nativeFocusCandidateIsPassword()) { 4379 mWebTextView.setInPassword(false); 4380 } 4381 return true; 4382 } 4383 4384 public void onScaleEnd(ScaleGestureDetector detector) { 4385 if (mPreviewZoomOnly) { 4386 mPreviewZoomOnly = false; 4387 mAnchorX = viewToContentX((int) mZoomCenterX + mScrollX); 4388 mAnchorY = viewToContentY((int) mZoomCenterY + mScrollY); 4389 // don't reflow when zoom in; when zoom out, do reflow if the 4390 // new scale is almost minimum scale; 4391 boolean reflowNow = (mActualScale - mMinZoomScale <= 0.01f) 4392 || ((mActualScale <= 0.8 * mTextWrapScale)); 4393 // force zoom after mPreviewZoomOnly is set to false so that the 4394 // new view size will be passed to the WebKit 4395 setNewZoomScale(mActualScale, reflowNow, true); 4396 // call invalidate() to draw without zoom filter 4397 invalidate(); 4398 } 4399 // adjust the edit text view if needed 4400 if (inEditingMode() && didUpdateTextViewBounds(false) 4401 && nativeFocusCandidateIsPassword()) { 4402 // If it is a password field, start drawing the 4403 // WebTextView once again. 4404 mWebTextView.setInPassword(true); 4405 } 4406 // start a drag, TOUCH_PINCH_DRAG, can't use TOUCH_INIT_MODE as it 4407 // may trigger the unwanted click, can't use TOUCH_DRAG_MODE as it 4408 // may trigger the unwanted fling. 4409 mTouchMode = TOUCH_PINCH_DRAG; 4410 startTouch(detector.getFocusX(), detector.getFocusY(), 4411 mLastTouchTime); 4412 } 4413 4414 public boolean onScale(ScaleGestureDetector detector) { 4415 float scale = (float) (Math.round(detector.getScaleFactor() 4416 * mActualScale * 100) / 100.0); 4417 if (Math.abs(scale - mActualScale) >= PREVIEW_SCALE_INCREMENT) { 4418 mPreviewZoomOnly = true; 4419 // limit the scale change per step 4420 if (scale > mActualScale) { 4421 scale = Math.min(scale, mActualScale * 1.25f); 4422 } else { 4423 scale = Math.max(scale, mActualScale * 0.8f); 4424 } 4425 mZoomCenterX = detector.getFocusX(); 4426 mZoomCenterY = detector.getFocusY(); 4427 setNewZoomScale(scale, false, false); 4428 invalidate(); 4429 return true; 4430 } 4431 return false; 4432 } 4433 } 4434 4435 @Override 4436 public boolean onTouchEvent(MotionEvent ev) { 4437 if (mNativeClass == 0 || !isClickable() || !isLongClickable()) { 4438 return false; 4439 } 4440 4441 if (DebugFlags.WEB_VIEW) { 4442 Log.v(LOGTAG, ev + " at " + ev.getEventTime() + " mTouchMode=" 4443 + mTouchMode); 4444 } 4445 4446 int action; 4447 float x, y; 4448 long eventTime = ev.getEventTime(); 4449 4450 // FIXME: we may consider to give WebKit an option to handle multi-touch 4451 // events later. 4452 if (mSupportMultiTouch && ev.getPointerCount() > 1) { 4453 if (mMinZoomScale < mMaxZoomScale) { 4454 mScaleDetector.onTouchEvent(ev); 4455 if (mScaleDetector.isInProgress()) { 4456 mLastTouchTime = eventTime; 4457 return true; 4458 } 4459 x = mScaleDetector.getFocusX(); 4460 y = mScaleDetector.getFocusY(); 4461 action = ev.getAction() & MotionEvent.ACTION_MASK; 4462 if (action == MotionEvent.ACTION_POINTER_DOWN) { 4463 cancelTouch(); 4464 action = MotionEvent.ACTION_DOWN; 4465 } else if (action == MotionEvent.ACTION_POINTER_UP) { 4466 // set mLastTouchX/Y to the remaining point 4467 mLastTouchX = x; 4468 mLastTouchY = y; 4469 } else if (action == MotionEvent.ACTION_MOVE) { 4470 // negative x or y indicate it is on the edge, skip it. 4471 if (x < 0 || y < 0) { 4472 return true; 4473 } 4474 } 4475 } else { 4476 // if the page disallow zoom, skip multi-pointer action 4477 return true; 4478 } 4479 } else { 4480 action = ev.getAction(); 4481 x = ev.getX(); 4482 y = ev.getY(); 4483 } 4484 4485 // Due to the touch screen edge effect, a touch closer to the edge 4486 // always snapped to the edge. As getViewWidth() can be different from 4487 // getWidth() due to the scrollbar, adjusting the point to match 4488 // getViewWidth(). Same applied to the height. 4489 if (x > getViewWidth() - 1) { 4490 x = getViewWidth() - 1; 4491 } 4492 if (y > getViewHeightWithTitle() - 1) { 4493 y = getViewHeightWithTitle() - 1; 4494 } 4495 4496 // pass the touch events, except ACTION_MOVE which will be handled 4497 // later, from UI thread to WebCore thread 4498 if (mFullScreenHolder != null || (mForwardTouchEvents 4499 && action != MotionEvent.ACTION_MOVE 4500 && (action == MotionEvent.ACTION_DOWN || mPreventDrag 4501 != PREVENT_DRAG_CANCEL))) { 4502 WebViewCore.TouchEventData ted = new WebViewCore.TouchEventData(); 4503 ted.mAction = action; 4504 ted.mX = viewToContentX((int) x + mScrollX); 4505 ted.mY = viewToContentY((int) y + mScrollY); 4506 ted.mEventTime = eventTime; 4507 ted.mMetaState = ev.getMetaState(); 4508 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 4509 mLastSentTouchTime = eventTime; 4510 } 4511 4512 float fDeltaX = mLastTouchX - x; 4513 float fDeltaY = mLastTouchY - y; 4514 int deltaX = (int) fDeltaX; 4515 int deltaY = (int) fDeltaY; 4516 4517 switch (action) { 4518 case MotionEvent.ACTION_DOWN: { 4519 mPreventDrag = PREVENT_DRAG_NO; 4520 if (!mScroller.isFinished()) { 4521 // stop the current scroll animation, but if this is 4522 // the start of a fling, allow it to add to the current 4523 // fling's velocity 4524 mScroller.abortAnimation(); 4525 mTouchMode = TOUCH_DRAG_START_MODE; 4526 mPrivateHandler.removeMessages(RESUME_WEBCORE_PRIORITY); 4527 } else if (mShiftIsPressed) { 4528 mSelectX = mScrollX + (int) x; 4529 mSelectY = mScrollY + (int) y; 4530 mTouchMode = TOUCH_SELECT_MODE; 4531 if (DebugFlags.WEB_VIEW) { 4532 Log.v(LOGTAG, "select=" + mSelectX + "," + mSelectY); 4533 } 4534 nativeMoveSelection(viewToContentX(mSelectX), 4535 viewToContentY(mSelectY), false); 4536 mTouchSelection = mExtendSelection = true; 4537 invalidate(); // draw the i-beam instead of the arrow 4538 } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) { 4539 mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP); 4540 if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) { 4541 mTouchMode = TOUCH_DOUBLE_TAP_MODE; 4542 } else { 4543 // commit the short press action for the previous tap 4544 doShortPress(); 4545 // continue, mTouchMode should be still TOUCH_INIT_MODE 4546 } 4547 } else { 4548 mPreviewZoomOnly = false; 4549 mTouchMode = TOUCH_INIT_MODE; 4550 mPreventDrag = mForwardTouchEvents ? PREVENT_DRAG_MAYBE_YES 4551 : PREVENT_DRAG_NO; 4552 mPreventLongPress = false; 4553 mPreventDoubleTap = false; 4554 mWebViewCore.sendMessage( 4555 EventHub.UPDATE_FRAME_CACHE_IF_LOADING); 4556 if (mLogEvent && eventTime - mLastTouchUpTime < 1000) { 4557 EventLog.writeEvent(EventLogTags.BROWSER_DOUBLE_TAP_DURATION, 4558 (eventTime - mLastTouchUpTime), eventTime); 4559 } 4560 } 4561 // Trigger the link 4562 if (mTouchMode == TOUCH_INIT_MODE 4563 || mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 4564 mPrivateHandler.sendMessageDelayed(mPrivateHandler 4565 .obtainMessage(SWITCH_TO_SHORTPRESS), TAP_TIMEOUT); 4566 } 4567 startTouch(x, y, eventTime); 4568 break; 4569 } 4570 case MotionEvent.ACTION_MOVE: { 4571 if (mTouchMode == TOUCH_DONE_MODE) { 4572 // no dragging during scroll zoom animation 4573 break; 4574 } 4575 mVelocityTracker.addMovement(ev); 4576 4577 if (mTouchMode != TOUCH_DRAG_MODE) { 4578 if (mTouchMode == TOUCH_SELECT_MODE) { 4579 mSelectX = mScrollX + (int) x; 4580 mSelectY = mScrollY + (int) y; 4581 if (DebugFlags.WEB_VIEW) { 4582 Log.v(LOGTAG, "xtend=" + mSelectX + "," + mSelectY); 4583 } 4584 nativeMoveSelection(viewToContentX(mSelectX), 4585 viewToContentY(mSelectY), true); 4586 invalidate(); 4587 break; 4588 } 4589 if ((deltaX * deltaX + deltaY * deltaY) < mTouchSlopSquare) { 4590 break; 4591 } 4592 4593 // pass the first ACTION_MOVE from UI thread to WebCore 4594 // thread after the distance is confirmed that it is a drag 4595 if (mFullScreenHolder == null && mForwardTouchEvents 4596 && mPreventDrag != PREVENT_DRAG_CANCEL) { 4597 WebViewCore.TouchEventData ted = new WebViewCore.TouchEventData(); 4598 ted.mAction = action; 4599 ted.mX = viewToContentX((int) x + mScrollX); 4600 ted.mY = viewToContentY((int) y + mScrollY); 4601 ted.mEventTime = eventTime; 4602 ted.mMetaState = ev.getMetaState(); 4603 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 4604 mLastSentTouchTime = eventTime; 4605 } 4606 4607 if (mPreventDrag == PREVENT_DRAG_MAYBE_YES) { 4608 // track mLastTouchTime as we may need to do fling at 4609 // ACTION_UP 4610 mLastTouchTime = eventTime; 4611 break; 4612 } 4613 if (mTouchMode == TOUCH_SHORTPRESS_MODE 4614 || mTouchMode == TOUCH_SHORTPRESS_START_MODE) { 4615 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 4616 } else if (mTouchMode == TOUCH_INIT_MODE 4617 || mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 4618 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 4619 } 4620 if (mFullScreenHolder != null) { 4621 // in full screen mode, the WebView can't be panned. 4622 mTouchMode = TOUCH_DONE_MODE; 4623 break; 4624 } 4625 4626 // if it starts nearly horizontal or vertical, enforce it 4627 int ax = Math.abs(deltaX); 4628 int ay = Math.abs(deltaY); 4629 if (ax > MAX_SLOPE_FOR_DIAG * ay) { 4630 mSnapScrollMode = SNAP_X; 4631 mSnapPositive = deltaX > 0; 4632 } else if (ay > MAX_SLOPE_FOR_DIAG * ax) { 4633 mSnapScrollMode = SNAP_Y; 4634 mSnapPositive = deltaY > 0; 4635 } 4636 4637 mTouchMode = TOUCH_DRAG_MODE; 4638 mLastTouchX = x; 4639 mLastTouchY = y; 4640 fDeltaX = 0.0f; 4641 fDeltaY = 0.0f; 4642 deltaX = 0; 4643 deltaY = 0; 4644 4645 WebViewCore.reducePriority(); 4646 if (!mDragFromTextInput) { 4647 nativeHideCursor(); 4648 } 4649 WebSettings settings = getSettings(); 4650 if (settings.supportZoom() 4651 && settings.getBuiltInZoomControls() 4652 && !mZoomButtonsController.isVisible() 4653 && mMinZoomScale < mMaxZoomScale) { 4654 mZoomButtonsController.setVisible(true); 4655 int count = settings.getDoubleTapToastCount(); 4656 if (mInZoomOverview && count > 0) { 4657 settings.setDoubleTapToastCount(--count); 4658 Toast.makeText(mContext, 4659 com.android.internal.R.string.double_tap_toast, 4660 Toast.LENGTH_LONG).show(); 4661 } 4662 } 4663 } else { 4664 // pass the touch events from UI thread to WebCore thread 4665 if (mFullScreenHolder == null && mForwardTouchEvents 4666 && eventTime - mLastSentTouchTime > mCurrentTouchInterval 4667 && mPreventDrag != PREVENT_DRAG_CANCEL) { 4668 WebViewCore.TouchEventData ted = new WebViewCore.TouchEventData(); 4669 ted.mAction = action; 4670 ted.mX = viewToContentX((int) x + mScrollX); 4671 ted.mY = viewToContentY((int) y + mScrollY); 4672 ted.mEventTime = eventTime; 4673 ted.mMetaState = ev.getMetaState(); 4674 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 4675 mLastSentTouchTime = eventTime; 4676 } 4677 } 4678 4679 // do pan 4680 int newScrollX = pinLocX(mScrollX + deltaX); 4681 int newDeltaX = newScrollX - mScrollX; 4682 if (deltaX != newDeltaX) { 4683 deltaX = newDeltaX; 4684 fDeltaX = (float) newDeltaX; 4685 } 4686 int newScrollY = pinLocY(mScrollY + deltaY); 4687 int newDeltaY = newScrollY - mScrollY; 4688 if (deltaY != newDeltaY) { 4689 deltaY = newDeltaY; 4690 fDeltaY = (float) newDeltaY; 4691 } 4692 boolean done = false; 4693 boolean keepScrollBarsVisible = false; 4694 if (Math.abs(fDeltaX) < 1.0f && Math.abs(fDeltaY) < 1.0f) { 4695 keepScrollBarsVisible = done = true; 4696 } else { 4697 if (mSnapScrollMode == SNAP_X || mSnapScrollMode == SNAP_Y) { 4698 int ax = Math.abs(deltaX); 4699 int ay = Math.abs(deltaY); 4700 if (mSnapScrollMode == SNAP_X) { 4701 // radical change means getting out of snap mode 4702 if (ay > MAX_SLOPE_FOR_DIAG * ax 4703 && ay > MIN_BREAK_SNAP_CROSS_DISTANCE) { 4704 mSnapScrollMode = SNAP_NONE; 4705 } 4706 // reverse direction means lock in the snap mode 4707 if (ax > MAX_SLOPE_FOR_DIAG * ay && 4708 (mSnapPositive 4709 ? deltaX < -mMinLockSnapReverseDistance 4710 : deltaX > mMinLockSnapReverseDistance)) { 4711 mSnapScrollMode |= SNAP_LOCK; 4712 } 4713 } else { 4714 // radical change means getting out of snap mode 4715 if (ax > MAX_SLOPE_FOR_DIAG * ay 4716 && ax > MIN_BREAK_SNAP_CROSS_DISTANCE) { 4717 mSnapScrollMode = SNAP_NONE; 4718 } 4719 // reverse direction means lock in the snap mode 4720 if (ay > MAX_SLOPE_FOR_DIAG * ax && 4721 (mSnapPositive 4722 ? deltaY < -mMinLockSnapReverseDistance 4723 : deltaY > mMinLockSnapReverseDistance)) { 4724 mSnapScrollMode |= SNAP_LOCK; 4725 } 4726 } 4727 } 4728 if (mSnapScrollMode != SNAP_NONE) { 4729 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 4730 deltaY = 0; 4731 } else { 4732 deltaX = 0; 4733 } 4734 } 4735 if ((deltaX | deltaY) != 0) { 4736 scrollBy(deltaX, deltaY); 4737 if (deltaX != 0) { 4738 mLastTouchX = x; 4739 } 4740 if (deltaY != 0) { 4741 mLastTouchY = y; 4742 } 4743 mHeldMotionless = MOTIONLESS_FALSE; 4744 } else { 4745 // keep the scrollbar on the screen even there is no 4746 // scroll 4747 keepScrollBarsVisible = true; 4748 } 4749 mLastTouchTime = eventTime; 4750 mUserScroll = true; 4751 } 4752 4753 if (!getSettings().getBuiltInZoomControls()) { 4754 boolean showPlusMinus = mMinZoomScale < mMaxZoomScale; 4755 if (mZoomControls != null && showPlusMinus) { 4756 if (mZoomControls.getVisibility() == View.VISIBLE) { 4757 mPrivateHandler.removeCallbacks(mZoomControlRunnable); 4758 } else { 4759 mZoomControls.show(showPlusMinus, false); 4760 } 4761 mPrivateHandler.postDelayed(mZoomControlRunnable, 4762 ZOOM_CONTROLS_TIMEOUT); 4763 } 4764 } 4765 4766 if (mDragTrackerHandler != null) { 4767 mDragTrackerHandler.dragTo(x, y); 4768 } 4769 4770 if (keepScrollBarsVisible) { 4771 if (mHeldMotionless != MOTIONLESS_TRUE) { 4772 mHeldMotionless = MOTIONLESS_TRUE; 4773 invalidate(); 4774 } 4775 // keep the scrollbar on the screen even there is no scroll 4776 awakenScrollBars(ViewConfiguration.getScrollDefaultDelay(), 4777 false); 4778 // return false to indicate that we can't pan out of the 4779 // view space 4780 return !done; 4781 } 4782 break; 4783 } 4784 case MotionEvent.ACTION_UP: { 4785 if (mDragTrackerHandler != null) { 4786 mDragTrackerHandler.stopDrag(); 4787 } 4788 mLastTouchUpTime = eventTime; 4789 switch (mTouchMode) { 4790 case TOUCH_DOUBLE_TAP_MODE: // double tap 4791 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 4792 mTouchMode = TOUCH_DONE_MODE; 4793 if (mPreventDoubleTap) { 4794 WebViewCore.TouchEventData ted 4795 = new WebViewCore.TouchEventData(); 4796 ted.mAction = WebViewCore.ACTION_DOUBLETAP; 4797 ted.mX = viewToContentX((int) x + mScrollX); 4798 ted.mY = viewToContentY((int) y + mScrollY); 4799 ted.mEventTime = eventTime; 4800 ted.mMetaState = ev.getMetaState(); 4801 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 4802 } else if (mFullScreenHolder == null) { 4803 doDoubleTap(); 4804 } 4805 break; 4806 case TOUCH_SELECT_MODE: 4807 commitCopy(); 4808 mTouchSelection = false; 4809 break; 4810 case TOUCH_INIT_MODE: // tap 4811 case TOUCH_SHORTPRESS_START_MODE: 4812 case TOUCH_SHORTPRESS_MODE: 4813 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 4814 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 4815 if ((deltaX * deltaX + deltaY * deltaY) > mTouchSlopSquare) { 4816 Log.w(LOGTAG, "Miss a drag as we are waiting for" + 4817 " WebCore's response for touch down."); 4818 if (mFullScreenHolder == null 4819 && (computeHorizontalScrollExtent() < computeHorizontalScrollRange() 4820 || computeVerticalScrollExtent() < computeVerticalScrollRange())) { 4821 // remove the pending TOUCH_EVENT and send a 4822 // cancel 4823 mWebViewCore 4824 .removeMessages(EventHub.TOUCH_EVENT); 4825 WebViewCore.TouchEventData ted = new WebViewCore.TouchEventData(); 4826 ted.mAction = MotionEvent.ACTION_CANCEL; 4827 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, 4828 ted); 4829 // we will not rewrite drag code here, but we 4830 // will try fling if it applies. 4831 WebViewCore.reducePriority(); 4832 // fall through to TOUCH_DRAG_MODE 4833 } else { 4834 break; 4835 } 4836 } else { 4837 // mPreventDrag can be PREVENT_DRAG_MAYBE_YES in 4838 // TOUCH_INIT_MODE. To give WebCoreThread a little 4839 // more time to send PREVENT_TOUCH_ID, we check 4840 // again in responding RELEASE_SINGLE_TAP. 4841 if (mPreventDrag != PREVENT_DRAG_YES) { 4842 if (mTouchMode == TOUCH_INIT_MODE) { 4843 mPrivateHandler.sendMessageDelayed( 4844 mPrivateHandler.obtainMessage( 4845 RELEASE_SINGLE_TAP), 4846 ViewConfiguration.getDoubleTapTimeout()); 4847 } else { 4848 mTouchMode = TOUCH_DONE_MODE; 4849 doShortPress(); 4850 } 4851 } 4852 break; 4853 } 4854 case TOUCH_DRAG_MODE: 4855 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 4856 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 4857 mHeldMotionless = MOTIONLESS_TRUE; 4858 // redraw in high-quality, as we're done dragging 4859 invalidate(); 4860 // if the user waits a while w/o moving before the 4861 // up, we don't want to do a fling 4862 if (eventTime - mLastTouchTime <= MIN_FLING_TIME) { 4863 mVelocityTracker.addMovement(ev); 4864 doFling(); 4865 break; 4866 } 4867 mLastVelocity = 0; 4868 WebViewCore.resumePriority(); 4869 break; 4870 case TOUCH_DRAG_START_MODE: 4871 case TOUCH_DONE_MODE: 4872 // do nothing 4873 break; 4874 } 4875 // we also use mVelocityTracker == null to tell us that we are 4876 // not "moving around", so we can take the slower/prettier 4877 // mode in the drawing code 4878 if (mVelocityTracker != null) { 4879 mVelocityTracker.recycle(); 4880 mVelocityTracker = null; 4881 } 4882 break; 4883 } 4884 case MotionEvent.ACTION_CANCEL: { 4885 cancelTouch(); 4886 break; 4887 } 4888 } 4889 return true; 4890 } 4891 4892 private void startTouch(float x, float y, long eventTime) { 4893 // Remember where the motion event started 4894 mLastTouchX = x; 4895 mLastTouchY = y; 4896 mLastTouchTime = eventTime; 4897 mVelocityTracker = VelocityTracker.obtain(); 4898 mSnapScrollMode = SNAP_NONE; 4899 if (mDragTracker != null) { 4900 mDragTrackerHandler = new DragTrackerHandler(x, y, mDragTracker); 4901 } 4902 } 4903 4904 private void cancelTouch() { 4905 if (mDragTrackerHandler != null) { 4906 mDragTrackerHandler.stopDrag(); 4907 } 4908 // we also use mVelocityTracker == null to tell us that we are 4909 // not "moving around", so we can take the slower/prettier 4910 // mode in the drawing code 4911 if (mVelocityTracker != null) { 4912 mVelocityTracker.recycle(); 4913 mVelocityTracker = null; 4914 } 4915 if (mTouchMode == TOUCH_DRAG_MODE) { 4916 WebViewCore.resumePriority(); 4917 } 4918 mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); 4919 mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); 4920 mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); 4921 mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); 4922 mHeldMotionless = MOTIONLESS_TRUE; 4923 mTouchMode = TOUCH_DONE_MODE; 4924 nativeHideCursor(); 4925 } 4926 4927 private long mTrackballFirstTime = 0; 4928 private long mTrackballLastTime = 0; 4929 private float mTrackballRemainsX = 0.0f; 4930 private float mTrackballRemainsY = 0.0f; 4931 private int mTrackballXMove = 0; 4932 private int mTrackballYMove = 0; 4933 private boolean mExtendSelection = false; 4934 private boolean mTouchSelection = false; 4935 private static final int TRACKBALL_KEY_TIMEOUT = 1000; 4936 private static final int TRACKBALL_TIMEOUT = 200; 4937 private static final int TRACKBALL_WAIT = 100; 4938 private static final int TRACKBALL_SCALE = 400; 4939 private static final int TRACKBALL_SCROLL_COUNT = 5; 4940 private static final int TRACKBALL_MOVE_COUNT = 10; 4941 private static final int TRACKBALL_MULTIPLIER = 3; 4942 private static final int SELECT_CURSOR_OFFSET = 16; 4943 private int mSelectX = 0; 4944 private int mSelectY = 0; 4945 private boolean mFocusSizeChanged = false; 4946 private boolean mShiftIsPressed = false; 4947 private boolean mTrackballDown = false; 4948 private long mTrackballUpTime = 0; 4949 private long mLastCursorTime = 0; 4950 private Rect mLastCursorBounds; 4951 4952 // Set by default; BrowserActivity clears to interpret trackball data 4953 // directly for movement. Currently, the framework only passes 4954 // arrow key events, not trackball events, from one child to the next 4955 private boolean mMapTrackballToArrowKeys = true; 4956 4957 public void setMapTrackballToArrowKeys(boolean setMap) { 4958 mMapTrackballToArrowKeys = setMap; 4959 } 4960 4961 void resetTrackballTime() { 4962 mTrackballLastTime = 0; 4963 } 4964 4965 @Override 4966 public boolean onTrackballEvent(MotionEvent ev) { 4967 long time = ev.getEventTime(); 4968 if ((ev.getMetaState() & KeyEvent.META_ALT_ON) != 0) { 4969 if (ev.getY() > 0) pageDown(true); 4970 if (ev.getY() < 0) pageUp(true); 4971 return true; 4972 } 4973 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 4974 if (mShiftIsPressed) { 4975 return true; // discard press if copy in progress 4976 } 4977 mTrackballDown = true; 4978 if (mNativeClass == 0) { 4979 return false; 4980 } 4981 nativeRecordButtons(hasFocus() && hasWindowFocus(), true, true); 4982 if (time - mLastCursorTime <= TRACKBALL_TIMEOUT 4983 && !mLastCursorBounds.equals(nativeGetCursorRingBounds())) { 4984 nativeSelectBestAt(mLastCursorBounds); 4985 } 4986 if (DebugFlags.WEB_VIEW) { 4987 Log.v(LOGTAG, "onTrackballEvent down ev=" + ev 4988 + " time=" + time 4989 + " mLastCursorTime=" + mLastCursorTime); 4990 } 4991 if (isInTouchMode()) requestFocusFromTouch(); 4992 return false; // let common code in onKeyDown at it 4993 } 4994 if (ev.getAction() == MotionEvent.ACTION_UP) { 4995 // LONG_PRESS_CENTER is set in common onKeyDown 4996 mPrivateHandler.removeMessages(LONG_PRESS_CENTER); 4997 mTrackballDown = false; 4998 mTrackballUpTime = time; 4999 if (mShiftIsPressed) { 5000 if (mExtendSelection) { 5001 commitCopy(); 5002 } else { 5003 mExtendSelection = true; 5004 invalidate(); // draw the i-beam instead of the arrow 5005 } 5006 return true; // discard press if copy in progress 5007 } 5008 if (DebugFlags.WEB_VIEW) { 5009 Log.v(LOGTAG, "onTrackballEvent up ev=" + ev 5010 + " time=" + time 5011 ); 5012 } 5013 return false; // let common code in onKeyUp at it 5014 } 5015 if (mMapTrackballToArrowKeys && mShiftIsPressed == false) { 5016 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit"); 5017 return false; 5018 } 5019 if (mTrackballDown) { 5020 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent down quit"); 5021 return true; // discard move if trackball is down 5022 } 5023 if (time - mTrackballUpTime < TRACKBALL_TIMEOUT) { 5024 if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent up timeout quit"); 5025 return true; 5026 } 5027 // TODO: alternatively we can do panning as touch does 5028 switchOutDrawHistory(); 5029 if (time - mTrackballLastTime > TRACKBALL_TIMEOUT) { 5030 if (DebugFlags.WEB_VIEW) { 5031 Log.v(LOGTAG, "onTrackballEvent time=" 5032 + time + " last=" + mTrackballLastTime); 5033 } 5034 mTrackballFirstTime = time; 5035 mTrackballXMove = mTrackballYMove = 0; 5036 } 5037 mTrackballLastTime = time; 5038 if (DebugFlags.WEB_VIEW) { 5039 Log.v(LOGTAG, "onTrackballEvent ev=" + ev + " time=" + time); 5040 } 5041 mTrackballRemainsX += ev.getX(); 5042 mTrackballRemainsY += ev.getY(); 5043 doTrackball(time); 5044 return true; 5045 } 5046 5047 void moveSelection(float xRate, float yRate) { 5048 if (mNativeClass == 0) 5049 return; 5050 int width = getViewWidth(); 5051 int height = getViewHeight(); 5052 mSelectX += xRate; 5053 mSelectY += yRate; 5054 int maxX = width + mScrollX; 5055 int maxY = height + mScrollY; 5056 mSelectX = Math.min(maxX, Math.max(mScrollX - SELECT_CURSOR_OFFSET 5057 , mSelectX)); 5058 mSelectY = Math.min(maxY, Math.max(mScrollY - SELECT_CURSOR_OFFSET 5059 , mSelectY)); 5060 if (DebugFlags.WEB_VIEW) { 5061 Log.v(LOGTAG, "moveSelection" 5062 + " mSelectX=" + mSelectX 5063 + " mSelectY=" + mSelectY 5064 + " mScrollX=" + mScrollX 5065 + " mScrollY=" + mScrollY 5066 + " xRate=" + xRate 5067 + " yRate=" + yRate 5068 ); 5069 } 5070 nativeMoveSelection(viewToContentX(mSelectX), 5071 viewToContentY(mSelectY), mExtendSelection); 5072 int scrollX = mSelectX < mScrollX ? -SELECT_CURSOR_OFFSET 5073 : mSelectX > maxX - SELECT_CURSOR_OFFSET ? SELECT_CURSOR_OFFSET 5074 : 0; 5075 int scrollY = mSelectY < mScrollY ? -SELECT_CURSOR_OFFSET 5076 : mSelectY > maxY - SELECT_CURSOR_OFFSET ? SELECT_CURSOR_OFFSET 5077 : 0; 5078 pinScrollBy(scrollX, scrollY, true, 0); 5079 Rect select = new Rect(mSelectX, mSelectY, mSelectX + 1, mSelectY + 1); 5080 requestRectangleOnScreen(select); 5081 invalidate(); 5082 } 5083 5084 private int scaleTrackballX(float xRate, int width) { 5085 int xMove = (int) (xRate / TRACKBALL_SCALE * width); 5086 int nextXMove = xMove; 5087 if (xMove > 0) { 5088 if (xMove > mTrackballXMove) { 5089 xMove -= mTrackballXMove; 5090 } 5091 } else if (xMove < mTrackballXMove) { 5092 xMove -= mTrackballXMove; 5093 } 5094 mTrackballXMove = nextXMove; 5095 return xMove; 5096 } 5097 5098 private int scaleTrackballY(float yRate, int height) { 5099 int yMove = (int) (yRate / TRACKBALL_SCALE * height); 5100 int nextYMove = yMove; 5101 if (yMove > 0) { 5102 if (yMove > mTrackballYMove) { 5103 yMove -= mTrackballYMove; 5104 } 5105 } else if (yMove < mTrackballYMove) { 5106 yMove -= mTrackballYMove; 5107 } 5108 mTrackballYMove = nextYMove; 5109 return yMove; 5110 } 5111 5112 private int keyCodeToSoundsEffect(int keyCode) { 5113 switch(keyCode) { 5114 case KeyEvent.KEYCODE_DPAD_UP: 5115 return SoundEffectConstants.NAVIGATION_UP; 5116 case KeyEvent.KEYCODE_DPAD_RIGHT: 5117 return SoundEffectConstants.NAVIGATION_RIGHT; 5118 case KeyEvent.KEYCODE_DPAD_DOWN: 5119 return SoundEffectConstants.NAVIGATION_DOWN; 5120 case KeyEvent.KEYCODE_DPAD_LEFT: 5121 return SoundEffectConstants.NAVIGATION_LEFT; 5122 } 5123 throw new IllegalArgumentException("keyCode must be one of " + 5124 "{KEYCODE_DPAD_UP, KEYCODE_DPAD_RIGHT, KEYCODE_DPAD_DOWN, " + 5125 "KEYCODE_DPAD_LEFT}."); 5126 } 5127 5128 private void doTrackball(long time) { 5129 int elapsed = (int) (mTrackballLastTime - mTrackballFirstTime); 5130 if (elapsed == 0) { 5131 elapsed = TRACKBALL_TIMEOUT; 5132 } 5133 float xRate = mTrackballRemainsX * 1000 / elapsed; 5134 float yRate = mTrackballRemainsY * 1000 / elapsed; 5135 int viewWidth = getViewWidth(); 5136 int viewHeight = getViewHeight(); 5137 if (mShiftIsPressed) { 5138 moveSelection(scaleTrackballX(xRate, viewWidth), 5139 scaleTrackballY(yRate, viewHeight)); 5140 mTrackballRemainsX = mTrackballRemainsY = 0; 5141 return; 5142 } 5143 float ax = Math.abs(xRate); 5144 float ay = Math.abs(yRate); 5145 float maxA = Math.max(ax, ay); 5146 if (DebugFlags.WEB_VIEW) { 5147 Log.v(LOGTAG, "doTrackball elapsed=" + elapsed 5148 + " xRate=" + xRate 5149 + " yRate=" + yRate 5150 + " mTrackballRemainsX=" + mTrackballRemainsX 5151 + " mTrackballRemainsY=" + mTrackballRemainsY); 5152 } 5153 int width = mContentWidth - viewWidth; 5154 int height = mContentHeight - viewHeight; 5155 if (width < 0) width = 0; 5156 if (height < 0) height = 0; 5157 ax = Math.abs(mTrackballRemainsX * TRACKBALL_MULTIPLIER); 5158 ay = Math.abs(mTrackballRemainsY * TRACKBALL_MULTIPLIER); 5159 maxA = Math.max(ax, ay); 5160 int count = Math.max(0, (int) maxA); 5161 int oldScrollX = mScrollX; 5162 int oldScrollY = mScrollY; 5163 if (count > 0) { 5164 int selectKeyCode = ax < ay ? mTrackballRemainsY < 0 ? 5165 KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN : 5166 mTrackballRemainsX < 0 ? KeyEvent.KEYCODE_DPAD_LEFT : 5167 KeyEvent.KEYCODE_DPAD_RIGHT; 5168 count = Math.min(count, TRACKBALL_MOVE_COUNT); 5169 if (DebugFlags.WEB_VIEW) { 5170 Log.v(LOGTAG, "doTrackball keyCode=" + selectKeyCode 5171 + " count=" + count 5172 + " mTrackballRemainsX=" + mTrackballRemainsX 5173 + " mTrackballRemainsY=" + mTrackballRemainsY); 5174 } 5175 if (navHandledKey(selectKeyCode, count, false, time, false)) { 5176 playSoundEffect(keyCodeToSoundsEffect(selectKeyCode)); 5177 } 5178 mTrackballRemainsX = mTrackballRemainsY = 0; 5179 } 5180 if (count >= TRACKBALL_SCROLL_COUNT) { 5181 int xMove = scaleTrackballX(xRate, width); 5182 int yMove = scaleTrackballY(yRate, height); 5183 if (DebugFlags.WEB_VIEW) { 5184 Log.v(LOGTAG, "doTrackball pinScrollBy" 5185 + " count=" + count 5186 + " xMove=" + xMove + " yMove=" + yMove 5187 + " mScrollX-oldScrollX=" + (mScrollX-oldScrollX) 5188 + " mScrollY-oldScrollY=" + (mScrollY-oldScrollY) 5189 ); 5190 } 5191 if (Math.abs(mScrollX - oldScrollX) > Math.abs(xMove)) { 5192 xMove = 0; 5193 } 5194 if (Math.abs(mScrollY - oldScrollY) > Math.abs(yMove)) { 5195 yMove = 0; 5196 } 5197 if (xMove != 0 || yMove != 0) { 5198 pinScrollBy(xMove, yMove, true, 0); 5199 } 5200 mUserScroll = true; 5201 } 5202 } 5203 5204 private int computeMaxScrollY() { 5205 int maxContentH = computeVerticalScrollRange() + getTitleHeight(); 5206 return Math.max(maxContentH - getViewHeightWithTitle(), getTitleHeight()); 5207 } 5208 5209 public void flingScroll(int vx, int vy) { 5210 int maxX = Math.max(computeHorizontalScrollRange() - getViewWidth(), 0); 5211 int maxY = computeMaxScrollY(); 5212 5213 mScroller.fling(mScrollX, mScrollY, vx, vy, 0, maxX, 0, maxY); 5214 invalidate(); 5215 } 5216 5217 private void doFling() { 5218 if (mVelocityTracker == null) { 5219 return; 5220 } 5221 int maxX = Math.max(computeHorizontalScrollRange() - getViewWidth(), 0); 5222 int maxY = computeMaxScrollY(); 5223 5224 mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling); 5225 int vx = (int) mVelocityTracker.getXVelocity(); 5226 int vy = (int) mVelocityTracker.getYVelocity(); 5227 5228 if (mSnapScrollMode != SNAP_NONE) { 5229 if ((mSnapScrollMode & SNAP_X) == SNAP_X) { 5230 vy = 0; 5231 } else { 5232 vx = 0; 5233 } 5234 } 5235 5236 if (true /* EMG release: make our fling more like Maps' */) { 5237 // maps cuts their velocity in half 5238 vx = vx * 3 / 4; 5239 vy = vy * 3 / 4; 5240 } 5241 if ((maxX == 0 && vy == 0) || (maxY == 0 && vx == 0)) { 5242 WebViewCore.resumePriority(); 5243 return; 5244 } 5245 float currentVelocity = mScroller.getCurrVelocity(); 5246 if (mLastVelocity > 0 && currentVelocity > 0) { 5247 float deltaR = (float) (Math.abs(Math.atan2(mLastVelY, mLastVelX) 5248 - Math.atan2(vy, vx))); 5249 final float circle = (float) (Math.PI) * 2.0f; 5250 if (deltaR > circle * 0.9f || deltaR < circle * 0.1f) { 5251 vx += currentVelocity * mLastVelX / mLastVelocity; 5252 vy += currentVelocity * mLastVelY / mLastVelocity; 5253 if (DebugFlags.WEB_VIEW) { 5254 Log.v(LOGTAG, "doFling vx= " + vx + " vy=" + vy); 5255 } 5256 } else if (DebugFlags.WEB_VIEW) { 5257 Log.v(LOGTAG, "doFling missed " + deltaR / circle); 5258 } 5259 } else if (DebugFlags.WEB_VIEW) { 5260 Log.v(LOGTAG, "doFling start last=" + mLastVelocity 5261 + " current=" + currentVelocity 5262 + " vx=" + vx + " vy=" + vy 5263 + " maxX=" + maxX + " maxY=" + maxY 5264 + " mScrollX=" + mScrollX + " mScrollY=" + mScrollY); 5265 } 5266 mLastVelX = vx; 5267 mLastVelY = vy; 5268 mLastVelocity = (float) Math.hypot(vx, vy); 5269 5270 mScroller.fling(mScrollX, mScrollY, -vx, -vy, 0, maxX, 0, maxY); 5271 // TODO: duration is calculated based on velocity, if the range is 5272 // small, the animation will stop before duration is up. We may 5273 // want to calculate how long the animation is going to run to precisely 5274 // resume the webcore update. 5275 final int time = mScroller.getDuration(); 5276 mPrivateHandler.sendEmptyMessageDelayed(RESUME_WEBCORE_PRIORITY, time); 5277 awakenScrollBars(time); 5278 invalidate(); 5279 } 5280 5281 private boolean zoomWithPreview(float scale) { 5282 float oldScale = mActualScale; 5283 mInitialScrollX = mScrollX; 5284 mInitialScrollY = mScrollY; 5285 5286 // snap to DEFAULT_SCALE if it is close 5287 if (scale > (mDefaultScale - 0.05) && scale < (mDefaultScale + 0.05)) { 5288 scale = mDefaultScale; 5289 } 5290 5291 setNewZoomScale(scale, true, false); 5292 5293 if (oldScale != mActualScale) { 5294 // use mZoomPickerScale to see zoom preview first 5295 mZoomStart = SystemClock.uptimeMillis(); 5296 mInvInitialZoomScale = 1.0f / oldScale; 5297 mInvFinalZoomScale = 1.0f / mActualScale; 5298 mZoomScale = mActualScale; 5299 WebViewCore.pauseUpdatePicture(mWebViewCore); 5300 invalidate(); 5301 return true; 5302 } else { 5303 return false; 5304 } 5305 } 5306 5307 /** 5308 * Returns a view containing zoom controls i.e. +/- buttons. The caller is 5309 * in charge of installing this view to the view hierarchy. This view will 5310 * become visible when the user starts scrolling via touch and fade away if 5311 * the user does not interact with it. 5312 * <p/> 5313 * API version 3 introduces a built-in zoom mechanism that is shown 5314 * automatically by the MapView. This is the preferred approach for 5315 * showing the zoom UI. 5316 * 5317 * @deprecated The built-in zoom mechanism is preferred, see 5318 * {@link WebSettings#setBuiltInZoomControls(boolean)}. 5319 */ 5320 @Deprecated 5321 public View getZoomControls() { 5322 if (!getSettings().supportZoom()) { 5323 Log.w(LOGTAG, "This WebView doesn't support zoom."); 5324 return null; 5325 } 5326 if (mZoomControls == null) { 5327 mZoomControls = createZoomControls(); 5328 5329 /* 5330 * need to be set to VISIBLE first so that getMeasuredHeight() in 5331 * {@link #onSizeChanged()} can return the measured value for proper 5332 * layout. 5333 */ 5334 mZoomControls.setVisibility(View.VISIBLE); 5335 mZoomControlRunnable = new Runnable() { 5336 public void run() { 5337 5338 /* Don't dismiss the controls if the user has 5339 * focus on them. Wait and check again later. 5340 */ 5341 if (!mZoomControls.hasFocus()) { 5342 mZoomControls.hide(); 5343 } else { 5344 mPrivateHandler.removeCallbacks(mZoomControlRunnable); 5345 mPrivateHandler.postDelayed(mZoomControlRunnable, 5346 ZOOM_CONTROLS_TIMEOUT); 5347 } 5348 } 5349 }; 5350 } 5351 return mZoomControls; 5352 } 5353 5354 private ExtendedZoomControls createZoomControls() { 5355 ExtendedZoomControls zoomControls = new ExtendedZoomControls(mContext 5356 , null); 5357 zoomControls.setOnZoomInClickListener(new OnClickListener() { 5358 public void onClick(View v) { 5359 // reset time out 5360 mPrivateHandler.removeCallbacks(mZoomControlRunnable); 5361 mPrivateHandler.postDelayed(mZoomControlRunnable, 5362 ZOOM_CONTROLS_TIMEOUT); 5363 zoomIn(); 5364 } 5365 }); 5366 zoomControls.setOnZoomOutClickListener(new OnClickListener() { 5367 public void onClick(View v) { 5368 // reset time out 5369 mPrivateHandler.removeCallbacks(mZoomControlRunnable); 5370 mPrivateHandler.postDelayed(mZoomControlRunnable, 5371 ZOOM_CONTROLS_TIMEOUT); 5372 zoomOut(); 5373 } 5374 }); 5375 return zoomControls; 5376 } 5377 5378 /** 5379 * Gets the {@link ZoomButtonsController} which can be used to add 5380 * additional buttons to the zoom controls window. 5381 * 5382 * @return The instance of {@link ZoomButtonsController} used by this class, 5383 * or null if it is unavailable. 5384 * @hide 5385 */ 5386 public ZoomButtonsController getZoomButtonsController() { 5387 return mZoomButtonsController; 5388 } 5389 5390 /** 5391 * Perform zoom in in the webview 5392 * @return TRUE if zoom in succeeds. FALSE if no zoom changes. 5393 */ 5394 public boolean zoomIn() { 5395 // TODO: alternatively we can disallow this during draw history mode 5396 switchOutDrawHistory(); 5397 mInZoomOverview = false; 5398 // Center zooming to the center of the screen. 5399 mZoomCenterX = getViewWidth() * .5f; 5400 mZoomCenterY = getViewHeight() * .5f; 5401 mAnchorX = viewToContentX((int) mZoomCenterX + mScrollX); 5402 mAnchorY = viewToContentY((int) mZoomCenterY + mScrollY); 5403 return zoomWithPreview(mActualScale * 1.25f); 5404 } 5405 5406 /** 5407 * Perform zoom out in the webview 5408 * @return TRUE if zoom out succeeds. FALSE if no zoom changes. 5409 */ 5410 public boolean zoomOut() { 5411 // TODO: alternatively we can disallow this during draw history mode 5412 switchOutDrawHistory(); 5413 // Center zooming to the center of the screen. 5414 mZoomCenterX = getViewWidth() * .5f; 5415 mZoomCenterY = getViewHeight() * .5f; 5416 mAnchorX = viewToContentX((int) mZoomCenterX + mScrollX); 5417 mAnchorY = viewToContentY((int) mZoomCenterY + mScrollY); 5418 return zoomWithPreview(mActualScale * 0.8f); 5419 } 5420 5421 private void updateSelection() { 5422 if (mNativeClass == 0) { 5423 return; 5424 } 5425 // mLastTouchX and mLastTouchY are the point in the current viewport 5426 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 5427 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 5428 Rect rect = new Rect(contentX - mNavSlop, contentY - mNavSlop, 5429 contentX + mNavSlop, contentY + mNavSlop); 5430 nativeSelectBestAt(rect); 5431 } 5432 5433 /** 5434 * Scroll the focused text field/area to match the WebTextView 5435 * @param xPercent New x position of the WebTextView from 0 to 1. 5436 * @param y New y position of the WebTextView in view coordinates 5437 */ 5438 /*package*/ void scrollFocusedTextInput(float xPercent, int y) { 5439 if (!inEditingMode() || mWebViewCore == null) { 5440 return; 5441 } 5442 mWebViewCore.sendMessage(EventHub.SCROLL_TEXT_INPUT, 5443 // Since this position is relative to the top of the text input 5444 // field, we do not need to take the title bar's height into 5445 // consideration. 5446 viewToContentDimension(y), 5447 new Float(xPercent)); 5448 } 5449 5450 /** 5451 * Set our starting point and time for a drag from the WebTextView. 5452 */ 5453 /*package*/ void initiateTextFieldDrag(float x, float y, long eventTime) { 5454 if (!inEditingMode()) { 5455 return; 5456 } 5457 mLastTouchX = x + (float) (mWebTextView.getLeft() - mScrollX); 5458 mLastTouchY = y + (float) (mWebTextView.getTop() - mScrollY); 5459 mLastTouchTime = eventTime; 5460 if (!mScroller.isFinished()) { 5461 abortAnimation(); 5462 mPrivateHandler.removeMessages(RESUME_WEBCORE_PRIORITY); 5463 } 5464 mSnapScrollMode = SNAP_NONE; 5465 mVelocityTracker = VelocityTracker.obtain(); 5466 mTouchMode = TOUCH_DRAG_START_MODE; 5467 } 5468 5469 /** 5470 * Given a motion event from the WebTextView, set its location to our 5471 * coordinates, and handle the event. 5472 */ 5473 /*package*/ boolean textFieldDrag(MotionEvent event) { 5474 if (!inEditingMode()) { 5475 return false; 5476 } 5477 mDragFromTextInput = true; 5478 event.offsetLocation((float) (mWebTextView.getLeft() - mScrollX), 5479 (float) (mWebTextView.getTop() - mScrollY)); 5480 boolean result = onTouchEvent(event); 5481 mDragFromTextInput = false; 5482 return result; 5483 } 5484 5485 /** 5486 * Due a touch up from a WebTextView. This will be handled by webkit to 5487 * change the selection. 5488 * @param event MotionEvent in the WebTextView's coordinates. 5489 */ 5490 /*package*/ void touchUpOnTextField(MotionEvent event) { 5491 if (!inEditingMode()) { 5492 return; 5493 } 5494 int x = viewToContentX((int) event.getX() + mWebTextView.getLeft()); 5495 int y = viewToContentY((int) event.getY() + mWebTextView.getTop()); 5496 nativeMotionUp(x, y, mNavSlop); 5497 } 5498 5499 /** 5500 * Called when pressing the center key or trackball on a textfield. 5501 */ 5502 /*package*/ void centerKeyPressOnTextField() { 5503 mWebViewCore.sendMessage(EventHub.CLICK, nativeCursorFramePointer(), 5504 nativeCursorNodePointer()); 5505 } 5506 5507 private void doShortPress() { 5508 if (mNativeClass == 0) { 5509 return; 5510 } 5511 switchOutDrawHistory(); 5512 // mLastTouchX and mLastTouchY are the point in the current viewport 5513 int contentX = viewToContentX((int) mLastTouchX + mScrollX); 5514 int contentY = viewToContentY((int) mLastTouchY + mScrollY); 5515 if (nativePointInNavCache(contentX, contentY, mNavSlop)) { 5516 WebViewCore.MotionUpData motionUpData = new WebViewCore 5517 .MotionUpData(); 5518 motionUpData.mFrame = nativeCacheHitFramePointer(); 5519 motionUpData.mNode = nativeCacheHitNodePointer(); 5520 motionUpData.mBounds = nativeCacheHitNodeBounds(); 5521 motionUpData.mX = contentX; 5522 motionUpData.mY = contentY; 5523 mWebViewCore.sendMessageAtFrontOfQueue(EventHub.VALID_NODE_BOUNDS, 5524 motionUpData); 5525 } else { 5526 doMotionUp(contentX, contentY); 5527 } 5528 } 5529 5530 private void doMotionUp(int contentX, int contentY) { 5531 if (mLogEvent && nativeMotionUp(contentX, contentY, mNavSlop)) { 5532 EventLog.writeEvent(EventLogTags.BROWSER_SNAP_CENTER); 5533 } 5534 if (nativeHasCursorNode() && !nativeCursorIsTextInput()) { 5535 playSoundEffect(SoundEffectConstants.CLICK); 5536 } 5537 } 5538 5539 // Rule for double tap: 5540 // 1. if the current scale is not same as the text wrap scale and layout 5541 // algorithm is NARROW_COLUMNS, fit to column; 5542 // 2. if the current state is not overview mode, change to overview mode; 5543 // 3. if the current state is overview mode, change to default scale. 5544 private void doDoubleTap() { 5545 if (mWebViewCore.getSettings().getUseWideViewPort() == false) { 5546 return; 5547 } 5548 mZoomCenterX = mLastTouchX; 5549 mZoomCenterY = mLastTouchY; 5550 mAnchorX = viewToContentX((int) mZoomCenterX + mScrollX); 5551 mAnchorY = viewToContentY((int) mZoomCenterY + mScrollY); 5552 WebSettings settings = getSettings(); 5553 // remove the zoom control after double tap 5554 if (settings.getBuiltInZoomControls()) { 5555 if (mZoomButtonsController.isVisible()) { 5556 mZoomButtonsController.setVisible(false); 5557 } 5558 } else { 5559 if (mZoomControlRunnable != null) { 5560 mPrivateHandler.removeCallbacks(mZoomControlRunnable); 5561 } 5562 if (mZoomControls != null) { 5563 mZoomControls.hide(); 5564 } 5565 } 5566 settings.setDoubleTapToastCount(0); 5567 boolean zoomToDefault = false; 5568 if ((settings.getLayoutAlgorithm() == WebSettings.LayoutAlgorithm.NARROW_COLUMNS) 5569 && (Math.abs(mActualScale - mTextWrapScale) >= 0.01f)) { 5570 setNewZoomScale(mActualScale, true, true); 5571 float overviewScale = (float) getViewWidth() / mZoomOverviewWidth; 5572 if (Math.abs(mActualScale - overviewScale) < 0.01f) { 5573 mInZoomOverview = true; 5574 } 5575 } else if (!mInZoomOverview) { 5576 float newScale = (float) getViewWidth() / mZoomOverviewWidth; 5577 if (Math.abs(mActualScale - newScale) >= 0.01f) { 5578 mInZoomOverview = true; 5579 // Force the titlebar fully reveal in overview mode 5580 if (mScrollY < getTitleHeight()) mScrollY = 0; 5581 zoomWithPreview(newScale); 5582 } else if (Math.abs(mActualScale - mDefaultScale) >= 0.01f) { 5583 zoomToDefault = true; 5584 } 5585 } else { 5586 zoomToDefault = true; 5587 } 5588 if (zoomToDefault) { 5589 mInZoomOverview = false; 5590 int left = nativeGetBlockLeftEdge(mAnchorX, mAnchorY, mActualScale); 5591 if (left != NO_LEFTEDGE) { 5592 // add a 5pt padding to the left edge. 5593 int viewLeft = contentToViewX(left < 5 ? 0 : (left - 5)) 5594 - mScrollX; 5595 // Re-calculate the zoom center so that the new scroll x will be 5596 // on the left edge. 5597 if (viewLeft > 0) { 5598 mZoomCenterX = viewLeft * mDefaultScale 5599 / (mDefaultScale - mActualScale); 5600 } else { 5601 scrollBy(viewLeft, 0); 5602 mZoomCenterX = 0; 5603 } 5604 } 5605 zoomWithPreview(mDefaultScale); 5606 } 5607 } 5608 5609 // Called by JNI to handle a touch on a node representing an email address, 5610 // address, or phone number 5611 private void overrideLoading(String url) { 5612 mCallbackProxy.uiOverrideUrlLoading(url); 5613 } 5614 5615 @Override 5616 public boolean requestFocus(int direction, Rect previouslyFocusedRect) { 5617 boolean result = false; 5618 if (inEditingMode()) { 5619 result = mWebTextView.requestFocus(direction, 5620 previouslyFocusedRect); 5621 } else { 5622 result = super.requestFocus(direction, previouslyFocusedRect); 5623 if (mWebViewCore.getSettings().getNeedInitialFocus()) { 5624 // For cases such as GMail, where we gain focus from a direction, 5625 // we want to move to the first available link. 5626 // FIXME: If there are no visible links, we may not want to 5627 int fakeKeyDirection = 0; 5628 switch(direction) { 5629 case View.FOCUS_UP: 5630 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_UP; 5631 break; 5632 case View.FOCUS_DOWN: 5633 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_DOWN; 5634 break; 5635 case View.FOCUS_LEFT: 5636 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_LEFT; 5637 break; 5638 case View.FOCUS_RIGHT: 5639 fakeKeyDirection = KeyEvent.KEYCODE_DPAD_RIGHT; 5640 break; 5641 default: 5642 return result; 5643 } 5644 if (mNativeClass != 0 && !nativeHasCursorNode()) { 5645 navHandledKey(fakeKeyDirection, 1, true, 0, true); 5646 } 5647 } 5648 } 5649 return result; 5650 } 5651 5652 @Override 5653 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5654 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 5655 5656 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5657 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5658 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5659 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5660 5661 int measuredHeight = heightSize; 5662 int measuredWidth = widthSize; 5663 5664 // Grab the content size from WebViewCore. 5665 int contentHeight = contentToViewDimension(mContentHeight); 5666 int contentWidth = contentToViewDimension(mContentWidth); 5667 5668// Log.d(LOGTAG, "------- measure " + heightMode); 5669 5670 if (heightMode != MeasureSpec.EXACTLY) { 5671 mHeightCanMeasure = true; 5672 measuredHeight = contentHeight; 5673 if (heightMode == MeasureSpec.AT_MOST) { 5674 // If we are larger than the AT_MOST height, then our height can 5675 // no longer be measured and we should scroll internally. 5676 if (measuredHeight > heightSize) { 5677 measuredHeight = heightSize; 5678 mHeightCanMeasure = false; 5679 } 5680 } 5681 } else { 5682 mHeightCanMeasure = false; 5683 } 5684 if (mNativeClass != 0) { 5685 nativeSetHeightCanMeasure(mHeightCanMeasure); 5686 } 5687 // For the width, always use the given size unless unspecified. 5688 if (widthMode == MeasureSpec.UNSPECIFIED) { 5689 mWidthCanMeasure = true; 5690 measuredWidth = contentWidth; 5691 } else { 5692 mWidthCanMeasure = false; 5693 } 5694 5695 synchronized (this) { 5696 setMeasuredDimension(measuredWidth, measuredHeight); 5697 } 5698 } 5699 5700 @Override 5701 public boolean requestChildRectangleOnScreen(View child, 5702 Rect rect, 5703 boolean immediate) { 5704 rect.offset(child.getLeft() - child.getScrollX(), 5705 child.getTop() - child.getScrollY()); 5706 5707 int height = getViewHeightWithTitle(); 5708 int screenTop = mScrollY; 5709 int screenBottom = screenTop + height; 5710 5711 int scrollYDelta = 0; 5712 5713 if (rect.bottom > screenBottom) { 5714 int oneThirdOfScreenHeight = height / 3; 5715 if (rect.height() > 2 * oneThirdOfScreenHeight) { 5716 // If the rectangle is too tall to fit in the bottom two thirds 5717 // of the screen, place it at the top. 5718 scrollYDelta = rect.top - screenTop; 5719 } else { 5720 // If the rectangle will still fit on screen, we want its 5721 // top to be in the top third of the screen. 5722 scrollYDelta = rect.top - (screenTop + oneThirdOfScreenHeight); 5723 } 5724 } else if (rect.top < screenTop) { 5725 scrollYDelta = rect.top - screenTop; 5726 } 5727 5728 int width = getWidth() - getVerticalScrollbarWidth(); 5729 int screenLeft = mScrollX; 5730 int screenRight = screenLeft + width; 5731 5732 int scrollXDelta = 0; 5733 5734 if (rect.right > screenRight && rect.left > screenLeft) { 5735 if (rect.width() > width) { 5736 scrollXDelta += (rect.left - screenLeft); 5737 } else { 5738 scrollXDelta += (rect.right - screenRight); 5739 } 5740 } else if (rect.left < screenLeft) { 5741 scrollXDelta -= (screenLeft - rect.left); 5742 } 5743 5744 if ((scrollYDelta | scrollXDelta) != 0) { 5745 return pinScrollBy(scrollXDelta, scrollYDelta, !immediate, 0); 5746 } 5747 5748 return false; 5749 } 5750 5751 /* package */ void replaceTextfieldText(int oldStart, int oldEnd, 5752 String replace, int newStart, int newEnd) { 5753 WebViewCore.ReplaceTextData arg = new WebViewCore.ReplaceTextData(); 5754 arg.mReplace = replace; 5755 arg.mNewStart = newStart; 5756 arg.mNewEnd = newEnd; 5757 mTextGeneration++; 5758 arg.mTextGeneration = mTextGeneration; 5759 mWebViewCore.sendMessage(EventHub.REPLACE_TEXT, oldStart, oldEnd, arg); 5760 } 5761 5762 /* package */ void passToJavaScript(String currentText, KeyEvent event) { 5763 WebViewCore.JSKeyData arg = new WebViewCore.JSKeyData(); 5764 arg.mEvent = event; 5765 arg.mCurrentText = currentText; 5766 // Increase our text generation number, and pass it to webcore thread 5767 mTextGeneration++; 5768 mWebViewCore.sendMessage(EventHub.PASS_TO_JS, mTextGeneration, 0, arg); 5769 // WebKit's document state is not saved until about to leave the page. 5770 // To make sure the host application, like Browser, has the up to date 5771 // document state when it goes to background, we force to save the 5772 // document state. 5773 mWebViewCore.removeMessages(EventHub.SAVE_DOCUMENT_STATE); 5774 mWebViewCore.sendMessageDelayed(EventHub.SAVE_DOCUMENT_STATE, 5775 cursorData(), 1000); 5776 } 5777 5778 /* package */ WebViewCore getWebViewCore() { 5779 return mWebViewCore; 5780 } 5781 5782 //------------------------------------------------------------------------- 5783 // Methods can be called from a separate thread, like WebViewCore 5784 // If it needs to call the View system, it has to send message. 5785 //------------------------------------------------------------------------- 5786 5787 /** 5788 * General handler to receive message coming from webkit thread 5789 */ 5790 class PrivateHandler extends Handler { 5791 @Override 5792 public void handleMessage(Message msg) { 5793 // exclude INVAL_RECT_MSG_ID since it is frequently output 5794 if (DebugFlags.WEB_VIEW && msg.what != INVAL_RECT_MSG_ID) { 5795 Log.v(LOGTAG, msg.what < REMEMBER_PASSWORD || msg.what 5796 > FIND_AGAIN ? Integer.toString(msg.what) 5797 : HandlerDebugString[msg.what - REMEMBER_PASSWORD]); 5798 } 5799 if (mWebViewCore == null) { 5800 // after WebView's destroy() is called, skip handling messages. 5801 return; 5802 } 5803 switch (msg.what) { 5804 case REMEMBER_PASSWORD: { 5805 mDatabase.setUsernamePassword( 5806 msg.getData().getString("host"), 5807 msg.getData().getString("username"), 5808 msg.getData().getString("password")); 5809 ((Message) msg.obj).sendToTarget(); 5810 break; 5811 } 5812 case NEVER_REMEMBER_PASSWORD: { 5813 mDatabase.setUsernamePassword( 5814 msg.getData().getString("host"), null, null); 5815 ((Message) msg.obj).sendToTarget(); 5816 break; 5817 } 5818 case SWITCH_TO_SHORTPRESS: { 5819 // if mPreventDrag is not confirmed, cancel it so that it 5820 // won't block panning the page. 5821 if (mPreventDrag == PREVENT_DRAG_MAYBE_YES) { 5822 mPreventDrag = PREVENT_DRAG_CANCEL; 5823 mPreventLongPress = false; 5824 mPreventDoubleTap = false; 5825 // remove the pending TOUCH_EVENT and send a cancel 5826 mWebViewCore.removeMessages(EventHub.TOUCH_EVENT); 5827 WebViewCore.TouchEventData ted = new WebViewCore.TouchEventData(); 5828 ted.mAction = MotionEvent.ACTION_CANCEL; 5829 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5830 } 5831 if (mTouchMode == TOUCH_INIT_MODE) { 5832 mTouchMode = mFullScreenHolder == null 5833 ? TOUCH_SHORTPRESS_START_MODE 5834 : TOUCH_SHORTPRESS_MODE; 5835 updateSelection(); 5836 } else if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { 5837 mTouchMode = TOUCH_DONE_MODE; 5838 } 5839 break; 5840 } 5841 case SWITCH_TO_LONGPRESS: { 5842 if (mPreventLongPress) { 5843 mTouchMode = TOUCH_DONE_MODE; 5844 WebViewCore.TouchEventData ted 5845 = new WebViewCore.TouchEventData(); 5846 ted.mAction = WebViewCore.ACTION_LONGPRESS; 5847 ted.mX = viewToContentX((int) mLastTouchX + mScrollX); 5848 ted.mY = viewToContentY((int) mLastTouchY + mScrollY); 5849 ted.mEventTime = SystemClock.uptimeMillis(); 5850 // metaState for long press is tricky. Should it be the state 5851 // when the press started or when the press was released? Or 5852 // some intermediary key state? For simplicity for now, we 5853 // don't set it. 5854 ted.mMetaState = 0; 5855 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5856 } else if (mPreventDrag != PREVENT_DRAG_YES) { 5857 mTouchMode = TOUCH_DONE_MODE; 5858 if (mFullScreenHolder == null) { 5859 performLongClick(); 5860 rebuildWebTextView(); 5861 } 5862 } 5863 break; 5864 } 5865 case RELEASE_SINGLE_TAP: { 5866 if (mPreventDrag == PREVENT_DRAG_MAYBE_YES) { 5867 // if mPreventDrag is not confirmed, cancel it so that 5868 // it won't block panning the page. 5869 mPreventDrag = PREVENT_DRAG_CANCEL; 5870 mPreventLongPress = false; 5871 mPreventDoubleTap = false; 5872 // remove the pending TOUCH_EVENT and send a cancel 5873 mWebViewCore.removeMessages(EventHub.TOUCH_EVENT); 5874 WebViewCore.TouchEventData ted = new WebViewCore.TouchEventData(); 5875 ted.mAction = MotionEvent.ACTION_CANCEL; 5876 mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); 5877 } 5878 if (mPreventDrag != PREVENT_DRAG_YES) { 5879 mTouchMode = TOUCH_DONE_MODE; 5880 doShortPress(); 5881 } 5882 break; 5883 } 5884 case SCROLL_BY_MSG_ID: 5885 setContentScrollBy(msg.arg1, msg.arg2, (Boolean) msg.obj); 5886 break; 5887 case SYNC_SCROLL_TO_MSG_ID: 5888 if (mUserScroll) { 5889 // if user has scrolled explicitly, don't sync the 5890 // scroll position any more 5891 mUserScroll = false; 5892 break; 5893 } 5894 // fall through 5895 case SCROLL_TO_MSG_ID: 5896 if (setContentScrollTo(msg.arg1, msg.arg2)) { 5897 // if we can't scroll to the exact position due to pin, 5898 // send a message to WebCore to re-scroll when we get a 5899 // new picture 5900 mUserScroll = false; 5901 mWebViewCore.sendMessage(EventHub.SYNC_SCROLL, 5902 msg.arg1, msg.arg2); 5903 } 5904 break; 5905 case SPAWN_SCROLL_TO_MSG_ID: 5906 spawnContentScrollTo(msg.arg1, msg.arg2); 5907 break; 5908 case UPDATE_ZOOM_RANGE: { 5909 WebViewCore.RestoreState restoreState 5910 = (WebViewCore.RestoreState) msg.obj; 5911 // mScrollX contains the new minPrefWidth 5912 updateZoomRange(restoreState, getViewWidth(), 5913 restoreState.mScrollX, false); 5914 break; 5915 } 5916 case NEW_PICTURE_MSG_ID: { 5917 WebSettings settings = mWebViewCore.getSettings(); 5918 // called for new content 5919 final int viewWidth = getViewWidth(); 5920 final WebViewCore.DrawData draw = 5921 (WebViewCore.DrawData) msg.obj; 5922 final Point viewSize = draw.mViewPoint; 5923 boolean useWideViewport = settings.getUseWideViewPort(); 5924 WebViewCore.RestoreState restoreState = draw.mRestoreState; 5925 boolean hasRestoreState = restoreState != null; 5926 if (hasRestoreState) { 5927 mInZoomOverview = false; 5928 updateZoomRange(restoreState, viewSize.x, 5929 draw.mMinPrefWidth, true); 5930 if (mInitialScaleInPercent > 0) { 5931 setNewZoomScale(mInitialScaleInPercent / 100.0f, 5932 mInitialScaleInPercent != mTextWrapScale * 100, 5933 false); 5934 } else if (restoreState.mViewScale > 0) { 5935 mTextWrapScale = restoreState.mTextWrapScale; 5936 setNewZoomScale(restoreState.mViewScale, false, 5937 false); 5938 } else { 5939 mInZoomOverview = useWideViewport 5940 && settings.getLoadWithOverviewMode(); 5941 float scale; 5942 if (mInZoomOverview) { 5943 scale = (float) viewWidth 5944 / DEFAULT_VIEWPORT_WIDTH; 5945 } else { 5946 scale = restoreState.mTextWrapScale; 5947 } 5948 setNewZoomScale(scale, Math.abs(scale 5949 - mTextWrapScale) >= 0.01f, false); 5950 } 5951 setContentScrollTo(restoreState.mScrollX, 5952 restoreState.mScrollY); 5953 // As we are on a new page, remove the WebTextView. This 5954 // is necessary for page loads driven by webkit, and in 5955 // particular when the user was on a password field, so 5956 // the WebTextView was visible. 5957 clearTextEntry(false); 5958 // update the zoom buttons as the scale can be changed 5959 if (getSettings().getBuiltInZoomControls()) { 5960 updateZoomButtonsEnabled(); 5961 } 5962 } 5963 // We update the layout (i.e. request a layout from the 5964 // view system) if the last view size that we sent to 5965 // WebCore matches the view size of the picture we just 5966 // received in the fixed dimension. 5967 final boolean updateLayout = viewSize.x == mLastWidthSent 5968 && viewSize.y == mLastHeightSent; 5969 recordNewContentSize(draw.mWidthHeight.x, 5970 draw.mWidthHeight.y 5971 + (mFindIsUp ? mFindHeight : 0), updateLayout); 5972 if (DebugFlags.WEB_VIEW) { 5973 Rect b = draw.mInvalRegion.getBounds(); 5974 Log.v(LOGTAG, "NEW_PICTURE_MSG_ID {" + 5975 b.left+","+b.top+","+b.right+","+b.bottom+"}"); 5976 } 5977 invalidateContentRect(draw.mInvalRegion.getBounds()); 5978 if (mPictureListener != null) { 5979 mPictureListener.onNewPicture(WebView.this, capturePicture()); 5980 } 5981 if (useWideViewport) { 5982 // limit mZoomOverviewWidth upper bound to 5983 // sMaxViewportWidth so that if the page doesn't behave 5984 // well, the WebView won't go insane. limit the lower 5985 // bound to match the default scale for mobile sites. 5986 mZoomOverviewWidth = Math.min(sMaxViewportWidth, Math 5987 .max((int) (viewWidth / mDefaultScale), Math 5988 .max(draw.mMinPrefWidth, 5989 draw.mViewPoint.x))); 5990 } 5991 if (!mMinZoomScaleFixed) { 5992 mMinZoomScale = (float) viewWidth / mZoomOverviewWidth; 5993 } 5994 if (!mDrawHistory && mInZoomOverview) { 5995 // fit the content width to the current view. Ignore 5996 // the rounding error case. 5997 if (Math.abs((viewWidth * mInvActualScale) 5998 - mZoomOverviewWidth) > 1) { 5999 setNewZoomScale((float) viewWidth 6000 / mZoomOverviewWidth, Math.abs(mActualScale 6001 - mTextWrapScale) < 0.01f, false); 6002 } 6003 } 6004 if (draw.mFocusSizeChanged && inEditingMode()) { 6005 mFocusSizeChanged = true; 6006 } 6007 if (hasRestoreState) { 6008 mViewManager.postReadyToDrawAll(); 6009 } 6010 break; 6011 } 6012 case WEBCORE_INITIALIZED_MSG_ID: 6013 // nativeCreate sets mNativeClass to a non-zero value 6014 nativeCreate(msg.arg1); 6015 break; 6016 case UPDATE_TEXTFIELD_TEXT_MSG_ID: 6017 // Make sure that the textfield is currently focused 6018 // and representing the same node as the pointer. 6019 if (inEditingMode() && 6020 mWebTextView.isSameTextField(msg.arg1)) { 6021 if (msg.getData().getBoolean("password")) { 6022 Spannable text = (Spannable) mWebTextView.getText(); 6023 int start = Selection.getSelectionStart(text); 6024 int end = Selection.getSelectionEnd(text); 6025 mWebTextView.setInPassword(true); 6026 // Restore the selection, which may have been 6027 // ruined by setInPassword. 6028 Spannable pword = 6029 (Spannable) mWebTextView.getText(); 6030 Selection.setSelection(pword, start, end); 6031 // If the text entry has created more events, ignore 6032 // this one. 6033 } else if (msg.arg2 == mTextGeneration) { 6034 mWebTextView.setTextAndKeepSelection( 6035 (String) msg.obj); 6036 } 6037 } 6038 break; 6039 case UPDATE_TEXT_SELECTION_MSG_ID: 6040 // If no textfield was in focus, and the user touched one, 6041 // causing it to send this message, then WebTextView has not 6042 // been set up yet. Rebuild it so it can set its selection. 6043 rebuildWebTextView(); 6044 if (inEditingMode() 6045 && mWebTextView.isSameTextField(msg.arg1) 6046 && msg.arg2 == mTextGeneration) { 6047 WebViewCore.TextSelectionData tData 6048 = (WebViewCore.TextSelectionData) msg.obj; 6049 mWebTextView.setSelectionFromWebKit(tData.mStart, 6050 tData.mEnd); 6051 } 6052 break; 6053 case RETURN_LABEL: 6054 if (inEditingMode() 6055 && mWebTextView.isSameTextField(msg.arg1)) { 6056 mWebTextView.setHint((String) msg.obj); 6057 InputMethodManager imm 6058 = InputMethodManager.peekInstance(); 6059 // The hint is propagated to the IME in 6060 // onCreateInputConnection. If the IME is already 6061 // active, restart it so that its hint text is updated. 6062 if (imm != null && imm.isActive(mWebTextView)) { 6063 imm.restartInput(mWebTextView); 6064 } 6065 } 6066 break; 6067 case MOVE_OUT_OF_PLUGIN: 6068 navHandledKey(msg.arg1, 1, false, 0, true); 6069 break; 6070 case UPDATE_TEXT_ENTRY_MSG_ID: 6071 // this is sent after finishing resize in WebViewCore. Make 6072 // sure the text edit box is still on the screen. 6073 if (inEditingMode() && nativeCursorIsTextInput()) { 6074 mWebTextView.bringIntoView(); 6075 rebuildWebTextView(); 6076 } 6077 break; 6078 case CLEAR_TEXT_ENTRY: 6079 clearTextEntry(false); 6080 break; 6081 case INVAL_RECT_MSG_ID: { 6082 Rect r = (Rect)msg.obj; 6083 if (r == null) { 6084 invalidate(); 6085 } else { 6086 // we need to scale r from content into view coords, 6087 // which viewInvalidate() does for us 6088 viewInvalidate(r.left, r.top, r.right, r.bottom); 6089 } 6090 break; 6091 } 6092 case IMMEDIATE_REPAINT_MSG_ID: { 6093 invalidate(); 6094 break; 6095 } 6096 case SET_ROOT_LAYER_MSG_ID: { 6097 nativeSetRootLayer(msg.arg1); 6098 invalidate(); 6099 break; 6100 } 6101 case REQUEST_FORM_DATA: 6102 AutoCompleteAdapter adapter = (AutoCompleteAdapter) msg.obj; 6103 if (mWebTextView.isSameTextField(msg.arg1)) { 6104 mWebTextView.setAdapterCustom(adapter); 6105 } 6106 break; 6107 case RESUME_WEBCORE_PRIORITY: 6108 WebViewCore.resumePriority(); 6109 break; 6110 6111 case LONG_PRESS_CENTER: 6112 // as this is shared by keydown and trackballdown, reset all 6113 // the states 6114 mGotCenterDown = false; 6115 mTrackballDown = false; 6116 performLongClick(); 6117 break; 6118 6119 case WEBCORE_NEED_TOUCH_EVENTS: 6120 mForwardTouchEvents = (msg.arg1 != 0); 6121 break; 6122 6123 case PREVENT_TOUCH_ID: 6124 if (msg.arg1 == MotionEvent.ACTION_DOWN) { 6125 // dont override if mPreventDrag has been set to no due 6126 // to time out 6127 if (mPreventDrag == PREVENT_DRAG_MAYBE_YES) { 6128 mPreventDrag = (msg.arg2 & TOUCH_PREVENT_DRAG) 6129 == TOUCH_PREVENT_DRAG ? PREVENT_DRAG_YES 6130 : PREVENT_DRAG_NO; 6131 if (mPreventDrag == PREVENT_DRAG_YES) { 6132 mTouchMode = TOUCH_DONE_MODE; 6133 } else { 6134 mPreventLongPress = 6135 (msg.arg2 & TOUCH_PREVENT_LONGPRESS) 6136 == TOUCH_PREVENT_LONGPRESS; 6137 mPreventDoubleTap = 6138 (msg.arg2 & TOUCH_PREVENT_DOUBLETAP) 6139 == TOUCH_PREVENT_DOUBLETAP; 6140 } 6141 } 6142 } 6143 break; 6144 6145 case REQUEST_KEYBOARD: 6146 if (msg.arg1 == 0) { 6147 hideSoftKeyboard(); 6148 } else { 6149 displaySoftKeyboard(1 == msg.arg2); 6150 } 6151 break; 6152 6153 case FIND_AGAIN: 6154 // Ignore if find has been dismissed. 6155 if (mFindIsUp) { 6156 findAll(mLastFind); 6157 } 6158 break; 6159 6160 case DRAG_HELD_MOTIONLESS: 6161 mHeldMotionless = MOTIONLESS_TRUE; 6162 invalidate(); 6163 // fall through to keep scrollbars awake 6164 6165 case AWAKEN_SCROLL_BARS: 6166 if (mTouchMode == TOUCH_DRAG_MODE 6167 && mHeldMotionless == MOTIONLESS_TRUE) { 6168 awakenScrollBars(ViewConfiguration 6169 .getScrollDefaultDelay(), false); 6170 mPrivateHandler.sendMessageDelayed(mPrivateHandler 6171 .obtainMessage(AWAKEN_SCROLL_BARS), 6172 ViewConfiguration.getScrollDefaultDelay()); 6173 } 6174 break; 6175 6176 case DO_MOTION_UP: 6177 doMotionUp(msg.arg1, msg.arg2); 6178 break; 6179 6180 case SHOW_FULLSCREEN: { 6181 WebViewCore.PluginFullScreenData data 6182 = (WebViewCore.PluginFullScreenData) msg.obj; 6183 if (data.mNpp != 0 && data.mView != null) { 6184 if (mFullScreenHolder != null) { 6185 Log.w(LOGTAG, 6186 "Should not have another full screen."); 6187 mFullScreenHolder.dismiss(); 6188 } 6189 mFullScreenHolder = new PluginFullScreenHolder( 6190 WebView.this, data.mNpp); 6191 // as we are sharing the View between full screen and 6192 // embedded mode, we have to remove the 6193 // AbsoluteLayout.LayoutParams set by embedded mode to 6194 // ViewGroup.LayoutParams before adding it to the dialog 6195 data.mView.setLayoutParams(new ViewGroup.LayoutParams( 6196 ViewGroup.LayoutParams.FILL_PARENT, 6197 ViewGroup.LayoutParams.FILL_PARENT)); 6198 mFullScreenHolder.setContentView(data.mView); 6199 mFullScreenHolder.setCancelable(false); 6200 mFullScreenHolder.setCanceledOnTouchOutside(false); 6201 mFullScreenHolder.show(); 6202 } else if (mFullScreenHolder == null) { 6203 // this may happen if user dismisses the fullscreen and 6204 // then the WebCore re-position message finally reached 6205 // the UI thread. 6206 break; 6207 } 6208 // move the matching embedded view fully into the view so 6209 // that touch will be valid instead of rejected due to out 6210 // of the visible bounds 6211 // TODO: do we need to preserve the original position and 6212 // scale so that we can revert it when leaving the full 6213 // screen mode? 6214 int x = contentToViewX(data.mDocX); 6215 int y = contentToViewY(data.mDocY); 6216 int width = contentToViewDimension(data.mDocWidth); 6217 int height = contentToViewDimension(data.mDocHeight); 6218 int viewWidth = getViewWidth(); 6219 int viewHeight = getViewHeight(); 6220 int newX = mScrollX; 6221 int newY = mScrollY; 6222 if (x < mScrollX) { 6223 newX = x + (width > viewWidth 6224 ? (width - viewWidth) / 2 : 0); 6225 } else if (x + width > mScrollX + viewWidth) { 6226 newX = x + width - viewWidth - (width > viewWidth 6227 ? (width - viewWidth) / 2 : 0); 6228 } 6229 if (y < mScrollY) { 6230 newY = y + (height > viewHeight 6231 ? (height - viewHeight) / 2 : 0); 6232 } else if (y + height > mScrollY + viewHeight) { 6233 newY = y + height - viewHeight - (height > viewHeight 6234 ? (height - viewHeight) / 2 : 0); 6235 } 6236 scrollTo(newX, newY); 6237 if (width > viewWidth || height > viewHeight) { 6238 mZoomCenterX = viewWidth * .5f; 6239 mZoomCenterY = viewHeight * .5f; 6240 // do not change text wrap scale so that there is no 6241 // reflow 6242 setNewZoomScale(mActualScale 6243 / Math.max((float) width / viewWidth, 6244 (float) height / viewHeight), false, 6245 false); 6246 } 6247 // Now update the bound 6248 mFullScreenHolder.updateBound(contentToViewX(data.mDocX) 6249 - mScrollX, contentToViewY(data.mDocY) - mScrollY, 6250 contentToViewDimension(data.mDocWidth), 6251 contentToViewDimension(data.mDocHeight)); 6252 } 6253 break; 6254 6255 case HIDE_FULLSCREEN: 6256 if (mFullScreenHolder != null) { 6257 mFullScreenHolder.dismiss(); 6258 mFullScreenHolder = null; 6259 } 6260 break; 6261 6262 case DOM_FOCUS_CHANGED: 6263 if (inEditingMode()) { 6264 nativeClearCursor(); 6265 rebuildWebTextView(); 6266 } 6267 break; 6268 6269 case SHOW_RECT_MSG_ID: { 6270 WebViewCore.ShowRectData data = (WebViewCore.ShowRectData) msg.obj; 6271 int x = mScrollX; 6272 int left = contentToViewX(data.mLeft); 6273 int width = contentToViewDimension(data.mWidth); 6274 int maxWidth = contentToViewDimension(data.mContentWidth); 6275 int viewWidth = getViewWidth(); 6276 if (width < viewWidth) { 6277 // center align 6278 x += left + width / 2 - mScrollX - viewWidth / 2; 6279 } else { 6280 x += (int) (left + data.mXPercentInDoc * width 6281 - mScrollX - data.mXPercentInView * viewWidth); 6282 } 6283 if (DebugFlags.WEB_VIEW) { 6284 Log.v(LOGTAG, "showRectMsg=(left=" + left + ",width=" + 6285 width + ",maxWidth=" + maxWidth + 6286 ",viewWidth=" + viewWidth + ",x=" 6287 + x + ",xPercentInDoc=" + data.mXPercentInDoc + 6288 ",xPercentInView=" + data.mXPercentInView+ ")"); 6289 } 6290 // use the passing content width to cap x as the current 6291 // mContentWidth may not be updated yet 6292 x = Math.max(0, 6293 (Math.min(maxWidth, x + viewWidth)) - viewWidth); 6294 int top = contentToViewY(data.mTop); 6295 int height = contentToViewDimension(data.mHeight); 6296 int maxHeight = contentToViewDimension(data.mContentHeight); 6297 int viewHeight = getViewHeight(); 6298 int y = (int) (top + data.mYPercentInDoc * height - 6299 data.mYPercentInView * viewHeight); 6300 if (DebugFlags.WEB_VIEW) { 6301 Log.v(LOGTAG, "showRectMsg=(top=" + top + ",height=" + 6302 height + ",maxHeight=" + maxHeight + 6303 ",viewHeight=" + viewHeight + ",y=" 6304 + y + ",yPercentInDoc=" + data.mYPercentInDoc + 6305 ",yPercentInView=" + data.mYPercentInView+ ")"); 6306 } 6307 // use the passing content height to cap y as the current 6308 // mContentHeight may not be updated yet 6309 y = Math.max(0, 6310 (Math.min(maxHeight, y + viewHeight) - viewHeight)); 6311 // We need to take into account the visible title height 6312 // when scrolling since y is an absolute view position. 6313 y = Math.max(0, y - getVisibleTitleHeight()); 6314 scrollTo(x, y); 6315 } 6316 break; 6317 6318 default: 6319 super.handleMessage(msg); 6320 break; 6321 } 6322 } 6323 } 6324 6325 // Class used to use a dropdown for a <select> element 6326 private class InvokeListBox implements Runnable { 6327 // Whether the listbox allows multiple selection. 6328 private boolean mMultiple; 6329 // Passed in to a list with multiple selection to tell 6330 // which items are selected. 6331 private int[] mSelectedArray; 6332 // Passed in to a list with single selection to tell 6333 // where the initial selection is. 6334 private int mSelection; 6335 6336 private Container[] mContainers; 6337 6338 // Need these to provide stable ids to my ArrayAdapter, 6339 // which normally does not have stable ids. (Bug 1250098) 6340 private class Container extends Object { 6341 /** 6342 * Possible values for mEnabled. Keep in sync with OptionStatus in 6343 * WebViewCore.cpp 6344 */ 6345 final static int OPTGROUP = -1; 6346 final static int OPTION_DISABLED = 0; 6347 final static int OPTION_ENABLED = 1; 6348 6349 String mString; 6350 int mEnabled; 6351 int mId; 6352 6353 public String toString() { 6354 return mString; 6355 } 6356 } 6357 6358 /** 6359 * Subclass ArrayAdapter so we can disable OptionGroupLabels, 6360 * and allow filtering. 6361 */ 6362 private class MyArrayListAdapter extends ArrayAdapter<Container> { 6363 public MyArrayListAdapter(Context context, Container[] objects, boolean multiple) { 6364 super(context, 6365 multiple ? com.android.internal.R.layout.select_dialog_multichoice : 6366 com.android.internal.R.layout.select_dialog_singlechoice, 6367 objects); 6368 } 6369 6370 @Override 6371 public View getView(int position, View convertView, 6372 ViewGroup parent) { 6373 // Always pass in null so that we will get a new CheckedTextView 6374 // Otherwise, an item which was previously used as an <optgroup> 6375 // element (i.e. has no check), could get used as an <option> 6376 // element, which needs a checkbox/radio, but it would not have 6377 // one. 6378 convertView = super.getView(position, null, parent); 6379 Container c = item(position); 6380 if (c != null && Container.OPTION_ENABLED != c.mEnabled) { 6381 // ListView does not draw dividers between disabled and 6382 // enabled elements. Use a LinearLayout to provide dividers 6383 LinearLayout layout = new LinearLayout(mContext); 6384 layout.setOrientation(LinearLayout.VERTICAL); 6385 if (position > 0) { 6386 View dividerTop = new View(mContext); 6387 dividerTop.setBackgroundResource( 6388 android.R.drawable.divider_horizontal_bright); 6389 layout.addView(dividerTop); 6390 } 6391 6392 if (Container.OPTGROUP == c.mEnabled) { 6393 // Currently select_dialog_multichoice and 6394 // select_dialog_singlechoice are CheckedTextViews. If 6395 // that changes, the class cast will no longer be valid. 6396 Assert.assertTrue( 6397 convertView instanceof CheckedTextView); 6398 ((CheckedTextView) convertView).setCheckMarkDrawable( 6399 null); 6400 } else { 6401 // c.mEnabled == Container.OPTION_DISABLED 6402 // Draw the disabled element in a disabled state. 6403 convertView.setEnabled(false); 6404 } 6405 6406 layout.addView(convertView); 6407 if (position < getCount() - 1) { 6408 View dividerBottom = new View(mContext); 6409 dividerBottom.setBackgroundResource( 6410 android.R.drawable.divider_horizontal_bright); 6411 layout.addView(dividerBottom); 6412 } 6413 return layout; 6414 } 6415 return convertView; 6416 } 6417 6418 @Override 6419 public boolean hasStableIds() { 6420 // AdapterView's onChanged method uses this to determine whether 6421 // to restore the old state. Return false so that the old (out 6422 // of date) state does not replace the new, valid state. 6423 return false; 6424 } 6425 6426 private Container item(int position) { 6427 if (position < 0 || position >= getCount()) { 6428 return null; 6429 } 6430 return (Container) getItem(position); 6431 } 6432 6433 @Override 6434 public long getItemId(int position) { 6435 Container item = item(position); 6436 if (item == null) { 6437 return -1; 6438 } 6439 return item.mId; 6440 } 6441 6442 @Override 6443 public boolean areAllItemsEnabled() { 6444 return false; 6445 } 6446 6447 @Override 6448 public boolean isEnabled(int position) { 6449 Container item = item(position); 6450 if (item == null) { 6451 return false; 6452 } 6453 return Container.OPTION_ENABLED == item.mEnabled; 6454 } 6455 } 6456 6457 private InvokeListBox(String[] array, int[] enabled, int[] selected) { 6458 mMultiple = true; 6459 mSelectedArray = selected; 6460 6461 int length = array.length; 6462 mContainers = new Container[length]; 6463 for (int i = 0; i < length; i++) { 6464 mContainers[i] = new Container(); 6465 mContainers[i].mString = array[i]; 6466 mContainers[i].mEnabled = enabled[i]; 6467 mContainers[i].mId = i; 6468 } 6469 } 6470 6471 private InvokeListBox(String[] array, int[] enabled, int selection) { 6472 mSelection = selection; 6473 mMultiple = false; 6474 6475 int length = array.length; 6476 mContainers = new Container[length]; 6477 for (int i = 0; i < length; i++) { 6478 mContainers[i] = new Container(); 6479 mContainers[i].mString = array[i]; 6480 mContainers[i].mEnabled = enabled[i]; 6481 mContainers[i].mId = i; 6482 } 6483 } 6484 6485 /* 6486 * Whenever the data set changes due to filtering, this class ensures 6487 * that the checked item remains checked. 6488 */ 6489 private class SingleDataSetObserver extends DataSetObserver { 6490 private long mCheckedId; 6491 private ListView mListView; 6492 private Adapter mAdapter; 6493 6494 /* 6495 * Create a new observer. 6496 * @param id The ID of the item to keep checked. 6497 * @param l ListView for getting and clearing the checked states 6498 * @param a Adapter for getting the IDs 6499 */ 6500 public SingleDataSetObserver(long id, ListView l, Adapter a) { 6501 mCheckedId = id; 6502 mListView = l; 6503 mAdapter = a; 6504 } 6505 6506 public void onChanged() { 6507 // The filter may have changed which item is checked. Find the 6508 // item that the ListView thinks is checked. 6509 int position = mListView.getCheckedItemPosition(); 6510 long id = mAdapter.getItemId(position); 6511 if (mCheckedId != id) { 6512 // Clear the ListView's idea of the checked item, since 6513 // it is incorrect 6514 mListView.clearChoices(); 6515 // Search for mCheckedId. If it is in the filtered list, 6516 // mark it as checked 6517 int count = mAdapter.getCount(); 6518 for (int i = 0; i < count; i++) { 6519 if (mAdapter.getItemId(i) == mCheckedId) { 6520 mListView.setItemChecked(i, true); 6521 break; 6522 } 6523 } 6524 } 6525 } 6526 6527 public void onInvalidate() {} 6528 } 6529 6530 public void run() { 6531 final ListView listView = (ListView) LayoutInflater.from(mContext) 6532 .inflate(com.android.internal.R.layout.select_dialog, null); 6533 final MyArrayListAdapter adapter = new 6534 MyArrayListAdapter(mContext, mContainers, mMultiple); 6535 AlertDialog.Builder b = new AlertDialog.Builder(mContext) 6536 .setView(listView).setCancelable(true) 6537 .setInverseBackgroundForced(true); 6538 6539 if (mMultiple) { 6540 b.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { 6541 public void onClick(DialogInterface dialog, int which) { 6542 mWebViewCore.sendMessage( 6543 EventHub.LISTBOX_CHOICES, 6544 adapter.getCount(), 0, 6545 listView.getCheckedItemPositions()); 6546 }}); 6547 b.setNegativeButton(android.R.string.cancel, 6548 new DialogInterface.OnClickListener() { 6549 public void onClick(DialogInterface dialog, int which) { 6550 mWebViewCore.sendMessage( 6551 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 6552 }}); 6553 } 6554 final AlertDialog dialog = b.create(); 6555 listView.setAdapter(adapter); 6556 listView.setFocusableInTouchMode(true); 6557 // There is a bug (1250103) where the checks in a ListView with 6558 // multiple items selected are associated with the positions, not 6559 // the ids, so the items do not properly retain their checks when 6560 // filtered. Do not allow filtering on multiple lists until 6561 // that bug is fixed. 6562 6563 listView.setTextFilterEnabled(!mMultiple); 6564 if (mMultiple) { 6565 listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 6566 int length = mSelectedArray.length; 6567 for (int i = 0; i < length; i++) { 6568 listView.setItemChecked(mSelectedArray[i], true); 6569 } 6570 } else { 6571 listView.setOnItemClickListener(new OnItemClickListener() { 6572 public void onItemClick(AdapterView parent, View v, 6573 int position, long id) { 6574 mWebViewCore.sendMessage( 6575 EventHub.SINGLE_LISTBOX_CHOICE, (int)id, 0); 6576 dialog.dismiss(); 6577 } 6578 }); 6579 if (mSelection != -1) { 6580 listView.setSelection(mSelection); 6581 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 6582 listView.setItemChecked(mSelection, true); 6583 DataSetObserver observer = new SingleDataSetObserver( 6584 adapter.getItemId(mSelection), listView, adapter); 6585 adapter.registerDataSetObserver(observer); 6586 } 6587 } 6588 dialog.setOnCancelListener(new DialogInterface.OnCancelListener() { 6589 public void onCancel(DialogInterface dialog) { 6590 mWebViewCore.sendMessage( 6591 EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); 6592 } 6593 }); 6594 dialog.show(); 6595 } 6596 } 6597 6598 /* 6599 * Request a dropdown menu for a listbox with multiple selection. 6600 * 6601 * @param array Labels for the listbox. 6602 * @param enabledArray State for each element in the list. See static 6603 * integers in Container class. 6604 * @param selectedArray Which positions are initally selected. 6605 */ 6606 void requestListBox(String[] array, int[] enabledArray, int[] 6607 selectedArray) { 6608 mPrivateHandler.post( 6609 new InvokeListBox(array, enabledArray, selectedArray)); 6610 } 6611 6612 private void updateZoomRange(WebViewCore.RestoreState restoreState, 6613 int viewWidth, int minPrefWidth, boolean updateZoomOverview) { 6614 if (restoreState.mMinScale == 0) { 6615 if (restoreState.mMobileSite) { 6616 if (minPrefWidth > Math.max(0, viewWidth)) { 6617 mMinZoomScale = (float) viewWidth / minPrefWidth; 6618 mMinZoomScaleFixed = false; 6619 if (updateZoomOverview) { 6620 WebSettings settings = getSettings(); 6621 mInZoomOverview = settings.getUseWideViewPort() && 6622 settings.getLoadWithOverviewMode(); 6623 } 6624 } else { 6625 mMinZoomScale = restoreState.mDefaultScale; 6626 mMinZoomScaleFixed = true; 6627 } 6628 } else { 6629 mMinZoomScale = DEFAULT_MIN_ZOOM_SCALE; 6630 mMinZoomScaleFixed = false; 6631 } 6632 } else { 6633 mMinZoomScale = restoreState.mMinScale; 6634 mMinZoomScaleFixed = true; 6635 } 6636 if (restoreState.mMaxScale == 0) { 6637 mMaxZoomScale = DEFAULT_MAX_ZOOM_SCALE; 6638 } else { 6639 mMaxZoomScale = restoreState.mMaxScale; 6640 } 6641 } 6642 6643 /* 6644 * Request a dropdown menu for a listbox with single selection or a single 6645 * <select> element. 6646 * 6647 * @param array Labels for the listbox. 6648 * @param enabledArray State for each element in the list. See static 6649 * integers in Container class. 6650 * @param selection Which position is initally selected. 6651 */ 6652 void requestListBox(String[] array, int[] enabledArray, int selection) { 6653 mPrivateHandler.post( 6654 new InvokeListBox(array, enabledArray, selection)); 6655 } 6656 6657 // called by JNI 6658 private void sendMoveFocus(int frame, int node) { 6659 mWebViewCore.sendMessage(EventHub.SET_MOVE_FOCUS, 6660 new WebViewCore.CursorData(frame, node, 0, 0)); 6661 } 6662 6663 // called by JNI 6664 private void sendMoveMouse(int frame, int node, int x, int y) { 6665 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, 6666 new WebViewCore.CursorData(frame, node, x, y)); 6667 } 6668 6669 /* 6670 * Send a mouse move event to the webcore thread. 6671 * 6672 * @param removeFocus Pass true if the "mouse" cursor is now over a node 6673 * which wants key events, but it is not the focus. This 6674 * will make the visual appear as though nothing is in 6675 * focus. Remove the WebTextView, if present, and stop 6676 * drawing the blinking caret. 6677 * called by JNI 6678 */ 6679 private void sendMoveMouseIfLatest(boolean removeFocus) { 6680 if (removeFocus) { 6681 clearTextEntry(true); 6682 } 6683 mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE_IF_LATEST, 6684 cursorData()); 6685 } 6686 6687 // called by JNI 6688 private void sendMotionUp(int touchGeneration, 6689 int frame, int node, int x, int y) { 6690 WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData(); 6691 touchUpData.mMoveGeneration = touchGeneration; 6692 touchUpData.mFrame = frame; 6693 touchUpData.mNode = node; 6694 touchUpData.mX = x; 6695 touchUpData.mY = y; 6696 mWebViewCore.sendMessage(EventHub.TOUCH_UP, touchUpData); 6697 } 6698 6699 6700 private int getScaledMaxXScroll() { 6701 int width; 6702 if (mHeightCanMeasure == false) { 6703 width = getViewWidth() / 4; 6704 } else { 6705 Rect visRect = new Rect(); 6706 calcOurVisibleRect(visRect); 6707 width = visRect.width() / 2; 6708 } 6709 // FIXME the divisor should be retrieved from somewhere 6710 return viewToContentX(width); 6711 } 6712 6713 private int getScaledMaxYScroll() { 6714 int height; 6715 if (mHeightCanMeasure == false) { 6716 height = getViewHeight() / 4; 6717 } else { 6718 Rect visRect = new Rect(); 6719 calcOurVisibleRect(visRect); 6720 height = visRect.height() / 2; 6721 } 6722 // FIXME the divisor should be retrieved from somewhere 6723 // the closest thing today is hard-coded into ScrollView.java 6724 // (from ScrollView.java, line 363) int maxJump = height/2; 6725 return Math.round(height * mInvActualScale); 6726 } 6727 6728 /** 6729 * Called by JNI to invalidate view 6730 */ 6731 private void viewInvalidate() { 6732 invalidate(); 6733 } 6734 6735 // return true if the key was handled 6736 private boolean navHandledKey(int keyCode, int count, boolean noScroll, 6737 long time, boolean ignorePlugin) { 6738 if (mNativeClass == 0) { 6739 return false; 6740 } 6741 if (ignorePlugin == false && nativeFocusIsPlugin()) { 6742 KeyEvent event = new KeyEvent(time, time, KeyEvent.ACTION_DOWN 6743 , keyCode, count, (mShiftIsPressed ? KeyEvent.META_SHIFT_ON : 0) 6744 | (false ? KeyEvent.META_ALT_ON : 0) // FIXME 6745 | (false ? KeyEvent.META_SYM_ON : 0) // FIXME 6746 , 0, 0, 0); 6747 mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); 6748 mWebViewCore.sendMessage(EventHub.KEY_UP, event); 6749 return true; 6750 } 6751 mLastCursorTime = time; 6752 mLastCursorBounds = nativeGetCursorRingBounds(); 6753 boolean keyHandled 6754 = nativeMoveCursor(keyCode, count, noScroll) == false; 6755 if (DebugFlags.WEB_VIEW) { 6756 Log.v(LOGTAG, "navHandledKey mLastCursorBounds=" + mLastCursorBounds 6757 + " mLastCursorTime=" + mLastCursorTime 6758 + " handled=" + keyHandled); 6759 } 6760 if (keyHandled == false || mHeightCanMeasure == false) { 6761 return keyHandled; 6762 } 6763 Rect contentCursorRingBounds = nativeGetCursorRingBounds(); 6764 if (contentCursorRingBounds.isEmpty()) return keyHandled; 6765 Rect viewCursorRingBounds = contentToViewRect(contentCursorRingBounds); 6766 Rect visRect = new Rect(); 6767 calcOurVisibleRect(visRect); 6768 Rect outset = new Rect(visRect); 6769 int maxXScroll = visRect.width() / 2; 6770 int maxYScroll = visRect.height() / 2; 6771 outset.inset(-maxXScroll, -maxYScroll); 6772 if (Rect.intersects(outset, viewCursorRingBounds) == false) { 6773 return keyHandled; 6774 } 6775 // FIXME: Necessary because ScrollView/ListView do not scroll left/right 6776 int maxH = Math.min(viewCursorRingBounds.right - visRect.right, 6777 maxXScroll); 6778 if (maxH > 0) { 6779 pinScrollBy(maxH, 0, true, 0); 6780 } else { 6781 maxH = Math.max(viewCursorRingBounds.left - visRect.left, 6782 -maxXScroll); 6783 if (maxH < 0) { 6784 pinScrollBy(maxH, 0, true, 0); 6785 } 6786 } 6787 if (mLastCursorBounds.isEmpty()) return keyHandled; 6788 if (mLastCursorBounds.equals(contentCursorRingBounds)) { 6789 return keyHandled; 6790 } 6791 if (DebugFlags.WEB_VIEW) { 6792 Log.v(LOGTAG, "navHandledKey contentCursorRingBounds=" 6793 + contentCursorRingBounds); 6794 } 6795 requestRectangleOnScreen(viewCursorRingBounds); 6796 mUserScroll = true; 6797 return keyHandled; 6798 } 6799 6800 /** 6801 * Set the background color. It's white by default. Pass 6802 * zero to make the view transparent. 6803 * @param color the ARGB color described by Color.java 6804 */ 6805 public void setBackgroundColor(int color) { 6806 mBackgroundColor = color; 6807 mWebViewCore.sendMessage(EventHub.SET_BACKGROUND_COLOR, color); 6808 } 6809 6810 public void debugDump() { 6811 nativeDebugDump(); 6812 mWebViewCore.sendMessage(EventHub.DUMP_NAVTREE); 6813 } 6814 6815 /** 6816 * Draw the HTML page into the specified canvas. This call ignores any 6817 * view-specific zoom, scroll offset, or other changes. It does not draw 6818 * any view-specific chrome, such as progress or URL bars. 6819 * 6820 * @hide only needs to be accessible to Browser and testing 6821 */ 6822 public void drawPage(Canvas canvas) { 6823 mWebViewCore.drawContentPicture(canvas, 0, false, false); 6824 } 6825 6826 /** 6827 * Set the time to wait between passing touches to WebCore. See also the 6828 * TOUCH_SENT_INTERVAL member for further discussion. 6829 * 6830 * @hide This is only used by the DRT test application. 6831 */ 6832 public void setTouchInterval(int interval) { 6833 mCurrentTouchInterval = interval; 6834 } 6835 6836 /** 6837 * Update our cache with updatedText. 6838 * @param updatedText The new text to put in our cache. 6839 */ 6840 /* package */ void updateCachedTextfield(String updatedText) { 6841 // Also place our generation number so that when we look at the cache 6842 // we recognize that it is up to date. 6843 nativeUpdateCachedTextfield(updatedText, mTextGeneration); 6844 } 6845 6846 private native int nativeCacheHitFramePointer(); 6847 private native Rect nativeCacheHitNodeBounds(); 6848 private native int nativeCacheHitNodePointer(); 6849 /* package */ native void nativeClearCursor(); 6850 private native void nativeCreate(int ptr); 6851 private native int nativeCursorFramePointer(); 6852 private native Rect nativeCursorNodeBounds(); 6853 private native int nativeCursorNodePointer(); 6854 /* package */ native boolean nativeCursorMatchesFocus(); 6855 private native boolean nativeCursorIntersects(Rect visibleRect); 6856 private native boolean nativeCursorIsAnchor(); 6857 private native boolean nativeCursorIsTextInput(); 6858 private native Point nativeCursorPosition(); 6859 private native String nativeCursorText(); 6860 /** 6861 * Returns true if the native cursor node says it wants to handle key events 6862 * (ala plugins). This can only be called if mNativeClass is non-zero! 6863 */ 6864 private native boolean nativeCursorWantsKeyEvents(); 6865 private native void nativeDebugDump(); 6866 private native void nativeDestroy(); 6867 private native boolean nativeEvaluateLayersAnimations(); 6868 private native void nativeDrawExtras(Canvas canvas, int extra); 6869 private native void nativeDumpDisplayTree(String urlOrNull); 6870 private native int nativeFindAll(String findLower, String findUpper); 6871 private native void nativeFindNext(boolean forward); 6872 /* package */ native int nativeFocusCandidateFramePointer(); 6873 private native boolean nativeFocusCandidateIsPassword(); 6874 private native boolean nativeFocusCandidateIsRtlText(); 6875 private native boolean nativeFocusCandidateIsTextInput(); 6876 /* package */ native int nativeFocusCandidateMaxLength(); 6877 /* package */ native String nativeFocusCandidateName(); 6878 private native Rect nativeFocusCandidateNodeBounds(); 6879 private native int nativeFocusCandidatePointer(); 6880 private native String nativeFocusCandidateText(); 6881 private native int nativeFocusCandidateTextSize(); 6882 /** 6883 * Returns an integer corresponding to WebView.cpp::type. 6884 * See WebTextView.setType() 6885 */ 6886 private native int nativeFocusCandidateType(); 6887 private native boolean nativeFocusIsPlugin(); 6888 /* package */ native int nativeFocusNodePointer(); 6889 private native Rect nativeGetCursorRingBounds(); 6890 private native String nativeGetSelection(); 6891 private native boolean nativeHasCursorNode(); 6892 private native boolean nativeHasFocusNode(); 6893 private native void nativeHideCursor(); 6894 private native String nativeImageURI(int x, int y); 6895 private native void nativeInstrumentReport(); 6896 /* package */ native boolean nativeMoveCursorToNextTextInput(); 6897 // return true if the page has been scrolled 6898 private native boolean nativeMotionUp(int x, int y, int slop); 6899 // returns false if it handled the key 6900 private native boolean nativeMoveCursor(int keyCode, int count, 6901 boolean noScroll); 6902 private native int nativeMoveGeneration(); 6903 private native void nativeMoveSelection(int x, int y, 6904 boolean extendSelection); 6905 private native boolean nativePointInNavCache(int x, int y, int slop); 6906 // Like many other of our native methods, you must make sure that 6907 // mNativeClass is not null before calling this method. 6908 private native void nativeRecordButtons(boolean focused, 6909 boolean pressed, boolean invalidate); 6910 private native void nativeSelectBestAt(Rect rect); 6911 private native void nativeSetFindIsEmpty(); 6912 private native void nativeSetFindIsUp(boolean isUp); 6913 private native void nativeSetFollowedLink(boolean followed); 6914 private native void nativeSetHeightCanMeasure(boolean measure); 6915 private native void nativeSetRootLayer(int layer); 6916 private native void nativeSetSelectionPointer(boolean set, 6917 float scale, int x, int y, boolean extendSelection); 6918 private native void nativeSetSelectionRegion(boolean set); 6919 private native int nativeTextGeneration(); 6920 // Never call this version except by updateCachedTextfield(String) - 6921 // we always want to pass in our generation number. 6922 private native void nativeUpdateCachedTextfield(String updatedText, 6923 int generation); 6924 // return NO_LEFTEDGE means failure. 6925 private static final int NO_LEFTEDGE = -1; 6926 private native int nativeGetBlockLeftEdge(int x, int y, float scale); 6927} 6928