The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.webkit; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.graphics.Canvas; |
| 21 | import android.graphics.DrawFilter; |
| 22 | import android.graphics.Paint; |
| 23 | import android.graphics.PaintFlagsDrawFilter; |
| 24 | import android.graphics.Picture; |
| 25 | import android.graphics.Point; |
| 26 | import android.graphics.Rect; |
| 27 | import android.graphics.Region; |
| 28 | import android.os.Handler; |
| 29 | import android.os.Looper; |
| 30 | import android.os.Message; |
| 31 | import android.os.Process; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 32 | import android.util.Log; |
| 33 | import android.util.SparseBooleanArray; |
| 34 | import android.view.KeyEvent; |
| 35 | |
| 36 | import java.util.ArrayList; |
| 37 | import java.util.HashMap; |
| 38 | |
| 39 | import junit.framework.Assert; |
| 40 | |
| 41 | final class WebViewCore { |
| 42 | |
| 43 | private static final String LOGTAG = "webcore"; |
| 44 | static final boolean DEBUG = false; |
Dave Bort | 42bc2ff | 2009-04-13 15:07:51 -0700 | [diff] [blame] | 45 | static final boolean LOGV_ENABLED = DEBUG; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 46 | |
| 47 | static { |
| 48 | // Load libwebcore during static initialization. This happens in the |
| 49 | // zygote process so it will be shared read-only across all app |
| 50 | // processes. |
| 51 | System.loadLibrary("webcore"); |
| 52 | } |
| 53 | |
| 54 | /* |
| 55 | * WebViewCore always executes in the same thread as the native webkit. |
| 56 | */ |
| 57 | |
| 58 | // The WebView that corresponds to this WebViewCore. |
| 59 | private WebView mWebView; |
| 60 | // Proxy for handling callbacks from native code |
| 61 | private final CallbackProxy mCallbackProxy; |
| 62 | // Settings object for maintaining all settings |
| 63 | private final WebSettings mSettings; |
| 64 | // Context for initializing the BrowserFrame with the proper assets. |
| 65 | private final Context mContext; |
| 66 | // The pointer to a native view object. |
| 67 | private int mNativeClass; |
| 68 | // The BrowserFrame is an interface to the native Frame component. |
| 69 | private BrowserFrame mBrowserFrame; |
| 70 | |
| 71 | /* |
| 72 | * range is from 200 to 10,000. 0 is a special value means device-width. -1 |
| 73 | * means undefined. |
| 74 | */ |
| 75 | private int mViewportWidth = -1; |
| 76 | |
| 77 | /* |
| 78 | * range is from 200 to 10,000. 0 is a special value means device-height. -1 |
| 79 | * means undefined. |
| 80 | */ |
| 81 | private int mViewportHeight = -1; |
| 82 | |
| 83 | /* |
| 84 | * scale in percent, range is from 1 to 1000. 0 means undefined. |
| 85 | */ |
| 86 | private int mViewportInitialScale = 0; |
| 87 | |
| 88 | /* |
| 89 | * scale in percent, range is from 1 to 1000. 0 means undefined. |
| 90 | */ |
| 91 | private int mViewportMinimumScale = 0; |
| 92 | |
| 93 | /* |
| 94 | * scale in percent, range is from 1 to 1000. 0 means undefined. |
| 95 | */ |
| 96 | private int mViewportMaximumScale = 0; |
| 97 | |
| 98 | private boolean mViewportUserScalable = true; |
| 99 | |
| 100 | private int mRestoredScale = 100; |
| 101 | private int mRestoredX = 0; |
| 102 | private int mRestoredY = 0; |
| 103 | |
| 104 | private int mWebkitScrollX = 0; |
| 105 | private int mWebkitScrollY = 0; |
| 106 | |
| 107 | // The thread name used to identify the WebCore thread and for use in |
| 108 | // debugging other classes that require operation within the WebCore thread. |
| 109 | /* package */ static final String THREAD_NAME = "WebViewCoreThread"; |
| 110 | |
| 111 | public WebViewCore(Context context, WebView w, CallbackProxy proxy) { |
| 112 | // No need to assign this in the WebCore thread. |
| 113 | mCallbackProxy = proxy; |
| 114 | mWebView = w; |
| 115 | // This context object is used to initialize the WebViewCore during |
| 116 | // subwindow creation. |
| 117 | mContext = context; |
| 118 | |
| 119 | // We need to wait for the initial thread creation before sending |
| 120 | // a message to the WebCore thread. |
| 121 | // XXX: This is the only time the UI thread will wait for the WebCore |
| 122 | // thread! |
| 123 | synchronized (WebViewCore.class) { |
| 124 | if (sWebCoreHandler == null) { |
| 125 | // Create a global thread and start it. |
| 126 | Thread t = new Thread(new WebCoreThread()); |
| 127 | t.setName(THREAD_NAME); |
| 128 | t.start(); |
| 129 | try { |
| 130 | WebViewCore.class.wait(); |
| 131 | } catch (InterruptedException e) { |
| 132 | Log.e(LOGTAG, "Caught exception while waiting for thread " + |
| 133 | "creation."); |
| 134 | Log.e(LOGTAG, Log.getStackTraceString(e)); |
| 135 | } |
| 136 | } |
| 137 | } |
| 138 | // Create an EventHub to handle messages before and after the thread is |
| 139 | // ready. |
| 140 | mEventHub = new EventHub(); |
| 141 | // Create a WebSettings object for maintaining all settings |
| 142 | mSettings = new WebSettings(mContext); |
| 143 | // The WebIconDatabase needs to be initialized within the UI thread so |
| 144 | // just request the instance here. |
| 145 | WebIconDatabase.getInstance(); |
| 146 | // Send a message to initialize the WebViewCore. |
| 147 | Message init = sWebCoreHandler.obtainMessage( |
| 148 | WebCoreThread.INITIALIZE, this); |
| 149 | sWebCoreHandler.sendMessage(init); |
| 150 | } |
| 151 | |
| 152 | /* Initialize private data within the WebCore thread. |
| 153 | */ |
| 154 | private void initialize() { |
| 155 | /* Initialize our private BrowserFrame class to handle all |
| 156 | * frame-related functions. We need to create a new view which |
| 157 | * in turn creates a C level FrameView and attaches it to the frame. |
| 158 | */ |
| 159 | mBrowserFrame = new BrowserFrame(mContext, this, mCallbackProxy, |
| 160 | mSettings); |
| 161 | // Sync the native settings and also create the WebCore thread handler. |
| 162 | mSettings.syncSettingsAndCreateHandler(mBrowserFrame); |
| 163 | // Create the handler and transfer messages for the IconDatabase |
| 164 | WebIconDatabase.getInstance().createHandler(); |
| 165 | // The transferMessages call will transfer all pending messages to the |
| 166 | // WebCore thread handler. |
| 167 | mEventHub.transferMessages(); |
| 168 | |
| 169 | // Send a message back to WebView to tell it that we have set up the |
| 170 | // WebCore thread. |
| 171 | if (mWebView != null) { |
| 172 | Message.obtain(mWebView.mPrivateHandler, |
| 173 | WebView.WEBCORE_INITIALIZED_MSG_ID, |
| 174 | mNativeClass, 0).sendToTarget(); |
| 175 | } |
| 176 | |
| 177 | } |
| 178 | |
| 179 | /* Handle the initialization of WebViewCore during subwindow creation. This |
| 180 | * method is called from the WebCore thread but it is called before the |
| 181 | * INITIALIZE message can be handled. |
| 182 | */ |
| 183 | /* package */ void initializeSubwindow() { |
| 184 | // Go ahead and initialize the core components. |
| 185 | initialize(); |
| 186 | // Remove the INITIALIZE method so we don't try to initialize twice. |
| 187 | sWebCoreHandler.removeMessages(WebCoreThread.INITIALIZE, this); |
| 188 | } |
| 189 | |
| 190 | /* Get the BrowserFrame component. This is used for subwindow creation and |
| 191 | * is called only from BrowserFrame in the WebCore thread. */ |
| 192 | /* package */ BrowserFrame getBrowserFrame() { |
| 193 | return mBrowserFrame; |
| 194 | } |
| 195 | |
| 196 | //------------------------------------------------------------------------- |
| 197 | // Common methods |
| 198 | //------------------------------------------------------------------------- |
| 199 | |
| 200 | /** |
| 201 | * Causes all timers to pause. This applies to all WebViews in the current |
| 202 | * app process. |
| 203 | */ |
| 204 | public static void pauseTimers() { |
| 205 | if (BrowserFrame.sJavaBridge == null) { |
| 206 | throw new IllegalStateException( |
| 207 | "No WebView has been created in this process!"); |
| 208 | } |
| 209 | BrowserFrame.sJavaBridge.pause(); |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * Resume all timers. This applies to all WebViews in the current process. |
| 214 | */ |
| 215 | public static void resumeTimers() { |
| 216 | if (BrowserFrame.sJavaBridge == null) { |
| 217 | throw new IllegalStateException( |
| 218 | "No WebView has been created in this process!"); |
| 219 | } |
| 220 | BrowserFrame.sJavaBridge.resume(); |
| 221 | } |
| 222 | |
| 223 | public WebSettings getSettings() { |
| 224 | return mSettings; |
| 225 | } |
| 226 | |
| 227 | /** |
| 228 | * Invoke a javascript alert. |
| 229 | * @param message The message displayed in the alert. |
| 230 | */ |
| 231 | protected void jsAlert(String url, String message) { |
| 232 | mCallbackProxy.onJsAlert(url, message); |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Invoke a javascript confirm dialog. |
| 237 | * @param message The message displayed in the dialog. |
| 238 | * @return True if the user confirmed or false if the user cancelled. |
| 239 | */ |
| 240 | protected boolean jsConfirm(String url, String message) { |
| 241 | return mCallbackProxy.onJsConfirm(url, message); |
| 242 | } |
| 243 | |
| 244 | /** |
| 245 | * Invoke a javascript prompt dialog. |
| 246 | * @param message The message to be displayed in the dialog. |
| 247 | * @param defaultValue The default value in the prompt input. |
| 248 | * @return The input from the user or null to indicate the user cancelled |
| 249 | * the dialog. |
| 250 | */ |
| 251 | protected String jsPrompt(String url, String message, String defaultValue) { |
| 252 | return mCallbackProxy.onJsPrompt(url, message, defaultValue); |
| 253 | } |
| 254 | |
| 255 | /** |
| 256 | * Invoke a javascript before unload dialog. |
| 257 | * @param url The url that is requesting the dialog. |
| 258 | * @param message The message displayed in the dialog. |
| 259 | * @return True if the user confirmed or false if the user cancelled. False |
| 260 | * will cancel the navigation. |
| 261 | */ |
| 262 | protected boolean jsUnload(String url, String message) { |
| 263 | return mCallbackProxy.onJsBeforeUnload(url, message); |
| 264 | } |
| 265 | |
| 266 | //------------------------------------------------------------------------- |
| 267 | // JNI methods |
| 268 | //------------------------------------------------------------------------- |
| 269 | |
| 270 | static native String nativeFindAddress(String addr); |
| 271 | |
| 272 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 273 | * Empty the picture set. |
| 274 | */ |
| 275 | private native void nativeClearContent(); |
| 276 | |
| 277 | /** |
| 278 | * Create a flat picture from the set of pictures. |
| 279 | */ |
| 280 | private native void nativeCopyContentToPicture(Picture picture); |
| 281 | |
| 282 | /** |
| 283 | * Draw the picture set with a background color. Returns true |
| 284 | * if some individual picture took too long to draw and can be |
| 285 | * split into parts. Called from the UI thread. |
| 286 | */ |
| 287 | private native boolean nativeDrawContent(Canvas canvas, int color); |
| 288 | |
| 289 | /** |
| 290 | * Redraw a portion of the picture set. The Point wh returns the |
| 291 | * width and height of the overall picture. |
| 292 | */ |
| 293 | private native boolean nativeRecordContent(Region invalRegion, Point wh); |
| 294 | |
| 295 | /** |
| 296 | * Splits slow parts of the picture set. Called from the webkit |
| 297 | * thread after nativeDrawContent returns true. |
| 298 | */ |
| 299 | private native void nativeSplitContent(); |
| 300 | |
| 301 | private native boolean nativeKey(int keyCode, int unichar, |
| 302 | int repeatCount, boolean isShift, boolean isAlt, boolean isDown); |
| 303 | |
| 304 | private native boolean nativeClick(); |
| 305 | |
| 306 | private native void nativeSendListBoxChoices(boolean[] choices, int size); |
| 307 | |
| 308 | private native void nativeSendListBoxChoice(int choice); |
| 309 | |
| 310 | /* Tell webkit what its width and height are, for the purposes |
| 311 | of layout/line-breaking. These coordinates are in document space, |
| 312 | which is the same as View coords unless we have zoomed the document |
| 313 | (see nativeSetZoom). |
| 314 | screenWidth is used by layout to wrap column around. If viewport uses |
| 315 | fixed size, screenWidth can be different from width with zooming. |
| 316 | should this be called nativeSetViewPortSize? |
| 317 | */ |
| 318 | private native void nativeSetSize(int width, int height, int screenWidth, |
| 319 | float scale, int realScreenWidth, int screenHeight); |
| 320 | |
| 321 | private native int nativeGetContentMinPrefWidth(); |
| 322 | |
| 323 | // Start: functions that deal with text editing |
| 324 | private native void nativeReplaceTextfieldText(int frame, int node, int x, |
| 325 | int y, int oldStart, int oldEnd, String replace, int newStart, |
| 326 | int newEnd); |
| 327 | |
| 328 | private native void passToJs(int frame, int node, int x, int y, int gen, |
| 329 | String currentText, int keyCode, int keyValue, boolean down, |
| 330 | boolean cap, boolean fn, boolean sym); |
| 331 | |
| 332 | private native void nativeSaveDocumentState(int frame); |
| 333 | |
| 334 | private native void nativeSetFinalFocus(int framePtr, int nodePtr, int x, |
| 335 | int y, boolean block); |
| 336 | |
| 337 | private native void nativeSetKitFocus(int moveGeneration, |
| 338 | int buildGeneration, int framePtr, int nodePtr, int x, int y, |
| 339 | boolean ignoreNullFocus); |
| 340 | |
| 341 | private native String nativeRetrieveHref(int framePtr, int nodePtr); |
| 342 | |
| 343 | private native void nativeTouchUp(int touchGeneration, |
| 344 | int buildGeneration, int framePtr, int nodePtr, int x, int y, |
| 345 | int size, boolean isClick, boolean retry); |
| 346 | |
| 347 | private native boolean nativeHandleTouchEvent(int action, int x, int y); |
| 348 | |
| 349 | private native void nativeUnblockFocus(); |
| 350 | |
| 351 | private native void nativeUpdateFrameCache(); |
| 352 | |
| 353 | private native void nativeSetSnapAnchor(int x, int y); |
| 354 | |
| 355 | private native void nativeSnapToAnchor(); |
| 356 | |
| 357 | private native void nativeSetBackgroundColor(int color); |
| 358 | |
| 359 | private native void nativeDumpDomTree(boolean useFile); |
| 360 | |
| 361 | private native void nativeDumpRenderTree(boolean useFile); |
| 362 | |
| 363 | private native void nativeDumpNavTree(); |
| 364 | |
| 365 | private native void nativeRefreshPlugins(boolean reloadOpenPages); |
| 366 | |
| 367 | /** |
| 368 | * Delete text from start to end in the focused textfield. If there is no |
| 369 | * focus, or if start == end, silently fail. If start and end are out of |
| 370 | * order, swap them. |
| 371 | * @param start Beginning of selection to delete. |
| 372 | * @param end End of selection to delete. |
| 373 | */ |
| 374 | private native void nativeDeleteSelection(int frame, int node, int x, int y, |
| 375 | int start, int end); |
| 376 | |
| 377 | /** |
| 378 | * Set the selection to (start, end) in the focused textfield. If start and |
| 379 | * end are out of order, swap them. |
| 380 | * @param start Beginning of selection. |
| 381 | * @param end End of selection. |
| 382 | */ |
| 383 | private native void nativeSetSelection(int frame, int node, int x, int y, |
| 384 | int start, int end); |
| 385 | |
| 386 | private native String nativeGetSelection(Region sel); |
| 387 | |
| 388 | // Register a scheme to be treated as local scheme so that it can access |
| 389 | // local asset files for resources |
| 390 | private native void nativeRegisterURLSchemeAsLocal(String scheme); |
| 391 | |
| 392 | // EventHub for processing messages |
| 393 | private final EventHub mEventHub; |
| 394 | // WebCore thread handler |
| 395 | private static Handler sWebCoreHandler; |
| 396 | // Class for providing Handler creation inside the WebCore thread. |
| 397 | private static class WebCoreThread implements Runnable { |
| 398 | // Message id for initializing a new WebViewCore. |
| 399 | private static final int INITIALIZE = 0; |
| 400 | private static final int REDUCE_PRIORITY = 1; |
| 401 | private static final int RESUME_PRIORITY = 2; |
| 402 | private static final int CACHE_TICKER = 3; |
| 403 | private static final int BLOCK_CACHE_TICKER = 4; |
| 404 | private static final int RESUME_CACHE_TICKER = 5; |
| 405 | |
| 406 | private static final int CACHE_TICKER_INTERVAL = 60 * 1000; // 1 minute |
| 407 | |
| 408 | private static boolean mCacheTickersBlocked = true; |
| 409 | |
| 410 | public void run() { |
| 411 | Looper.prepare(); |
| 412 | Assert.assertNull(sWebCoreHandler); |
| 413 | synchronized (WebViewCore.class) { |
| 414 | sWebCoreHandler = new Handler() { |
| 415 | @Override |
| 416 | public void handleMessage(Message msg) { |
| 417 | switch (msg.what) { |
| 418 | case INITIALIZE: |
| 419 | WebViewCore core = (WebViewCore) msg.obj; |
| 420 | core.initialize(); |
| 421 | break; |
| 422 | |
| 423 | case REDUCE_PRIORITY: |
| 424 | // 3 is an adjustable number. |
| 425 | Process.setThreadPriority( |
| 426 | Process.THREAD_PRIORITY_DEFAULT + 3 * |
| 427 | Process.THREAD_PRIORITY_LESS_FAVORABLE); |
| 428 | break; |
| 429 | |
| 430 | case RESUME_PRIORITY: |
| 431 | Process.setThreadPriority( |
| 432 | Process.THREAD_PRIORITY_DEFAULT); |
| 433 | break; |
| 434 | |
| 435 | case CACHE_TICKER: |
| 436 | if (!mCacheTickersBlocked) { |
| 437 | CacheManager.endCacheTransaction(); |
| 438 | CacheManager.startCacheTransaction(); |
| 439 | sendMessageDelayed( |
| 440 | obtainMessage(CACHE_TICKER), |
| 441 | CACHE_TICKER_INTERVAL); |
| 442 | } |
| 443 | break; |
| 444 | |
| 445 | case BLOCK_CACHE_TICKER: |
| 446 | if (CacheManager.endCacheTransaction()) { |
| 447 | mCacheTickersBlocked = true; |
| 448 | } |
| 449 | break; |
| 450 | |
| 451 | case RESUME_CACHE_TICKER: |
| 452 | if (CacheManager.startCacheTransaction()) { |
| 453 | mCacheTickersBlocked = false; |
| 454 | } |
| 455 | break; |
| 456 | } |
| 457 | } |
| 458 | }; |
| 459 | WebViewCore.class.notify(); |
| 460 | } |
| 461 | Looper.loop(); |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | static class FocusData { |
| 466 | FocusData() {} |
| 467 | FocusData(FocusData d) { |
| 468 | mMoveGeneration = d.mMoveGeneration; |
| 469 | mBuildGeneration = d.mBuildGeneration; |
| 470 | mFrame = d.mFrame; |
| 471 | mNode = d.mNode; |
| 472 | mX = d.mX; |
| 473 | mY = d.mY; |
| 474 | mIgnoreNullFocus = d.mIgnoreNullFocus; |
| 475 | } |
| 476 | int mMoveGeneration; |
| 477 | int mBuildGeneration; |
| 478 | int mFrame; |
| 479 | int mNode; |
| 480 | int mX; |
| 481 | int mY; |
| 482 | boolean mIgnoreNullFocus; |
| 483 | } |
| 484 | |
| 485 | static class TouchUpData { |
| 486 | int mMoveGeneration; |
| 487 | int mBuildGeneration; |
| 488 | int mFrame; |
| 489 | int mNode; |
| 490 | int mX; |
| 491 | int mY; |
| 492 | int mSize; |
| 493 | boolean mIsClick; |
| 494 | boolean mRetry; |
| 495 | } |
| 496 | |
| 497 | static class TouchEventData { |
| 498 | int mAction; // MotionEvent.getAction() |
| 499 | int mX; |
| 500 | int mY; |
| 501 | } |
| 502 | |
| 503 | static final String[] HandlerDebugString = { |
| 504 | "LOAD_URL", // = 100; |
| 505 | "STOP_LOADING", // = 101; |
| 506 | "RELOAD", // = 102; |
| 507 | "KEY_DOWN", // = 103; |
| 508 | "KEY_UP", // = 104; |
| 509 | "VIEW_SIZE_CHANGED", // = 105; |
| 510 | "GO_BACK_FORWARD", // = 106; |
| 511 | "SET_SCROLL_OFFSET", // = 107; |
| 512 | "RESTORE_STATE", // = 108; |
| 513 | "PAUSE_TIMERS", // = 109; |
| 514 | "RESUME_TIMERS", // = 110; |
| 515 | "CLEAR_CACHE", // = 111; |
| 516 | "CLEAR_HISTORY", // = 112; |
| 517 | "SET_SELECTION", // = 113; |
| 518 | "REPLACE_TEXT", // = 114; |
| 519 | "PASS_TO_JS", // = 115; |
| 520 | "SET_GLOBAL_BOUNDS", // = 116; |
| 521 | "UPDATE_CACHE_AND_TEXT_ENTRY", // = 117; |
| 522 | "CLICK", // = 118; |
Grace Kloba | c6c318d | 2009-04-01 09:44:18 -0700 | [diff] [blame] | 523 | "SET_NETWORK_STATE", // = 119; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 524 | "DOC_HAS_IMAGES", // = 120; |
| 525 | "SET_SNAP_ANCHOR", // = 121; |
| 526 | "DELETE_SELECTION", // = 122; |
| 527 | "LISTBOX_CHOICES", // = 123; |
| 528 | "SINGLE_LISTBOX_CHOICE", // = 124; |
| 529 | "125", |
| 530 | "SET_BACKGROUND_COLOR", // = 126; |
| 531 | "UNBLOCK_FOCUS", // = 127; |
| 532 | "SAVE_DOCUMENT_STATE", // = 128; |
| 533 | "GET_SELECTION", // = 129; |
| 534 | "WEBKIT_DRAW", // = 130; |
| 535 | "SYNC_SCROLL", // = 131; |
| 536 | "REFRESH_PLUGINS", // = 132; |
| 537 | "SPLIT_PICTURE_SET", // = 133; |
| 538 | "CLEAR_CONTENT", // = 134; |
| 539 | "SET_FINAL_FOCUS", // = 135; |
| 540 | "SET_KIT_FOCUS", // = 136; |
| 541 | "REQUEST_FOCUS_HREF", // = 137; |
| 542 | "ADD_JS_INTERFACE", // = 138; |
| 543 | "LOAD_DATA", // = 139; |
| 544 | "TOUCH_UP", // = 140; |
| 545 | "TOUCH_EVENT", // = 141; |
| 546 | }; |
| 547 | |
| 548 | class EventHub { |
| 549 | // Message Ids |
| 550 | static final int LOAD_URL = 100; |
| 551 | static final int STOP_LOADING = 101; |
| 552 | static final int RELOAD = 102; |
| 553 | static final int KEY_DOWN = 103; |
| 554 | static final int KEY_UP = 104; |
| 555 | static final int VIEW_SIZE_CHANGED = 105; |
| 556 | static final int GO_BACK_FORWARD = 106; |
| 557 | static final int SET_SCROLL_OFFSET = 107; |
| 558 | static final int RESTORE_STATE = 108; |
| 559 | static final int PAUSE_TIMERS = 109; |
| 560 | static final int RESUME_TIMERS = 110; |
| 561 | static final int CLEAR_CACHE = 111; |
| 562 | static final int CLEAR_HISTORY = 112; |
| 563 | static final int SET_SELECTION = 113; |
| 564 | static final int REPLACE_TEXT = 114; |
| 565 | static final int PASS_TO_JS = 115; |
| 566 | static final int SET_GLOBAL_BOUNDS = 116; |
| 567 | static final int UPDATE_CACHE_AND_TEXT_ENTRY = 117; |
| 568 | static final int CLICK = 118; |
Grace Kloba | c6c318d | 2009-04-01 09:44:18 -0700 | [diff] [blame] | 569 | static final int SET_NETWORK_STATE = 119; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 570 | static final int DOC_HAS_IMAGES = 120; |
| 571 | static final int SET_SNAP_ANCHOR = 121; |
| 572 | static final int DELETE_SELECTION = 122; |
| 573 | static final int LISTBOX_CHOICES = 123; |
| 574 | static final int SINGLE_LISTBOX_CHOICE = 124; |
| 575 | static final int SET_BACKGROUND_COLOR = 126; |
| 576 | static final int UNBLOCK_FOCUS = 127; |
| 577 | static final int SAVE_DOCUMENT_STATE = 128; |
| 578 | static final int GET_SELECTION = 129; |
| 579 | static final int WEBKIT_DRAW = 130; |
| 580 | static final int SYNC_SCROLL = 131; |
| 581 | static final int REFRESH_PLUGINS = 132; |
| 582 | static final int SPLIT_PICTURE_SET = 133; |
| 583 | static final int CLEAR_CONTENT = 134; |
| 584 | |
| 585 | // UI nav messages |
| 586 | static final int SET_FINAL_FOCUS = 135; |
| 587 | static final int SET_KIT_FOCUS = 136; |
| 588 | static final int REQUEST_FOCUS_HREF = 137; |
| 589 | static final int ADD_JS_INTERFACE = 138; |
| 590 | static final int LOAD_DATA = 139; |
| 591 | |
| 592 | // motion |
| 593 | static final int TOUCH_UP = 140; |
| 594 | // message used to pass UI touch events to WebCore |
| 595 | static final int TOUCH_EVENT = 141; |
| 596 | |
| 597 | // Network-based messaging |
| 598 | static final int CLEAR_SSL_PREF_TABLE = 150; |
| 599 | |
| 600 | // Test harness messages |
| 601 | static final int REQUEST_EXT_REPRESENTATION = 160; |
| 602 | static final int REQUEST_DOC_AS_TEXT = 161; |
| 603 | |
| 604 | // debugging |
| 605 | static final int DUMP_DOMTREE = 170; |
| 606 | static final int DUMP_RENDERTREE = 171; |
| 607 | static final int DUMP_NAVTREE = 172; |
| 608 | |
| 609 | // private message ids |
| 610 | private static final int DESTROY = 200; |
| 611 | |
| 612 | // flag values passed to message SET_FINAL_FOCUS |
| 613 | static final int NO_FOCUS_CHANGE_BLOCK = 0; |
| 614 | static final int BLOCK_FOCUS_CHANGE_UNTIL_KEY_UP = 1; |
| 615 | |
| 616 | // Private handler for WebCore messages. |
| 617 | private Handler mHandler; |
| 618 | // Message queue for containing messages before the WebCore thread is |
| 619 | // ready. |
| 620 | private ArrayList<Message> mMessages = new ArrayList<Message>(); |
| 621 | // Flag for blocking messages. This is used during DESTROY to avoid |
| 622 | // posting more messages to the EventHub or to WebView's event handler. |
| 623 | private boolean mBlockMessages; |
| 624 | |
| 625 | private int mTid; |
| 626 | private int mSavedPriority; |
| 627 | |
| 628 | /** |
| 629 | * Prevent other classes from creating an EventHub. |
| 630 | */ |
| 631 | private EventHub() {} |
| 632 | |
| 633 | /** |
| 634 | * Transfer all messages to the newly created webcore thread handler. |
| 635 | */ |
| 636 | private void transferMessages() { |
| 637 | mTid = Process.myTid(); |
| 638 | mSavedPriority = Process.getThreadPriority(mTid); |
| 639 | |
| 640 | mHandler = new Handler() { |
| 641 | @Override |
| 642 | public void handleMessage(Message msg) { |
| 643 | if (LOGV_ENABLED) { |
| 644 | Log.v(LOGTAG, msg.what < LOAD_URL || msg.what |
| 645 | > TOUCH_EVENT ? Integer.toString(msg.what) |
| 646 | : HandlerDebugString[msg.what - LOAD_URL]); |
| 647 | } |
| 648 | switch (msg.what) { |
| 649 | case WEBKIT_DRAW: |
| 650 | webkitDraw(); |
| 651 | break; |
| 652 | |
| 653 | case DESTROY: |
| 654 | // Time to take down the world. Cancel all pending |
| 655 | // loads and destroy the native view and frame. |
| 656 | mBrowserFrame.destroy(); |
| 657 | mBrowserFrame = null; |
| 658 | mNativeClass = 0; |
| 659 | break; |
| 660 | |
| 661 | case LOAD_URL: |
| 662 | loadUrl((String) msg.obj); |
| 663 | break; |
| 664 | |
| 665 | case LOAD_DATA: |
| 666 | HashMap loadParams = (HashMap) msg.obj; |
| 667 | String baseUrl = (String) loadParams.get("baseUrl"); |
| 668 | if (baseUrl != null) { |
| 669 | int i = baseUrl.indexOf(':'); |
| 670 | if (i > 0) { |
| 671 | /* |
| 672 | * In 1.0, {@link |
| 673 | * WebView#loadDataWithBaseURL} can access |
| 674 | * local asset files as long as the data is |
| 675 | * valid. In the new WebKit, the restriction |
| 676 | * is tightened. To be compatible with 1.0, |
| 677 | * we automatically add the scheme of the |
| 678 | * baseUrl for local access as long as it is |
| 679 | * not http(s)/ftp(s)/about/javascript |
| 680 | */ |
| 681 | String scheme = baseUrl.substring(0, i); |
| 682 | if (!scheme.startsWith("http") && |
| 683 | !scheme.startsWith("ftp") && |
| 684 | !scheme.startsWith("about") && |
| 685 | !scheme.startsWith("javascript")) { |
| 686 | nativeRegisterURLSchemeAsLocal(scheme); |
| 687 | } |
| 688 | } |
| 689 | } |
| 690 | mBrowserFrame.loadData(baseUrl, |
| 691 | (String) loadParams.get("data"), |
| 692 | (String) loadParams.get("mimeType"), |
| 693 | (String) loadParams.get("encoding"), |
| 694 | (String) loadParams.get("failUrl")); |
| 695 | break; |
| 696 | |
| 697 | case STOP_LOADING: |
| 698 | // If the WebCore has committed the load, but not |
| 699 | // finished the first layout yet, we need to set |
| 700 | // first layout done to trigger the interpreted side sync |
| 701 | // up with native side |
| 702 | if (mBrowserFrame.committed() |
| 703 | && !mBrowserFrame.firstLayoutDone()) { |
| 704 | mBrowserFrame.didFirstLayout(); |
| 705 | } |
| 706 | // Do this after syncing up the layout state. |
| 707 | stopLoading(); |
| 708 | break; |
| 709 | |
| 710 | case RELOAD: |
| 711 | mBrowserFrame.reload(false); |
| 712 | break; |
| 713 | |
| 714 | case KEY_DOWN: |
| 715 | key((KeyEvent) msg.obj, true); |
| 716 | break; |
| 717 | |
| 718 | case KEY_UP: |
| 719 | key((KeyEvent) msg.obj, false); |
| 720 | break; |
| 721 | |
| 722 | case CLICK: |
| 723 | nativeClick(); |
| 724 | break; |
| 725 | |
| 726 | case VIEW_SIZE_CHANGED: |
| 727 | viewSizeChanged(msg.arg1, msg.arg2, |
The Android Open Source Project | ba87e3e | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 728 | ((Float) msg.obj).floatValue()); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 729 | break; |
| 730 | |
| 731 | case SET_SCROLL_OFFSET: |
| 732 | // note: these are in document coordinates |
| 733 | // (inv-zoom) |
| 734 | nativeSetScrollOffset(msg.arg1, msg.arg2); |
| 735 | break; |
| 736 | |
| 737 | case SET_GLOBAL_BOUNDS: |
| 738 | Rect r = (Rect) msg.obj; |
| 739 | nativeSetGlobalBounds(r.left, r.top, r.width(), |
| 740 | r.height()); |
| 741 | break; |
| 742 | |
| 743 | case GO_BACK_FORWARD: |
| 744 | // If it is a standard load and the load is not |
| 745 | // committed yet, we interpret BACK as RELOAD |
| 746 | if (!mBrowserFrame.committed() && msg.arg1 == -1 && |
| 747 | (mBrowserFrame.loadType() == |
| 748 | BrowserFrame.FRAME_LOADTYPE_STANDARD)) { |
| 749 | mBrowserFrame.reload(true); |
| 750 | } else { |
| 751 | mBrowserFrame.goBackOrForward(msg.arg1); |
| 752 | } |
| 753 | break; |
| 754 | |
| 755 | case RESTORE_STATE: |
| 756 | stopLoading(); |
| 757 | restoreState(msg.arg1); |
| 758 | break; |
| 759 | |
| 760 | case PAUSE_TIMERS: |
| 761 | mSavedPriority = Process.getThreadPriority(mTid); |
| 762 | Process.setThreadPriority(mTid, |
| 763 | Process.THREAD_PRIORITY_BACKGROUND); |
| 764 | pauseTimers(); |
| 765 | if (CacheManager.disableTransaction()) { |
| 766 | WebCoreThread.mCacheTickersBlocked = true; |
| 767 | sWebCoreHandler.removeMessages( |
| 768 | WebCoreThread.CACHE_TICKER); |
| 769 | } |
| 770 | break; |
| 771 | |
| 772 | case RESUME_TIMERS: |
| 773 | Process.setThreadPriority(mTid, mSavedPriority); |
| 774 | resumeTimers(); |
| 775 | if (CacheManager.enableTransaction()) { |
| 776 | WebCoreThread.mCacheTickersBlocked = false; |
| 777 | sWebCoreHandler.sendMessageDelayed( |
| 778 | sWebCoreHandler.obtainMessage( |
| 779 | WebCoreThread.CACHE_TICKER), |
| 780 | WebCoreThread.CACHE_TICKER_INTERVAL); |
| 781 | } |
| 782 | break; |
| 783 | |
Grace Kloba | c6c318d | 2009-04-01 09:44:18 -0700 | [diff] [blame] | 784 | case SET_NETWORK_STATE: |
| 785 | if (BrowserFrame.sJavaBridge == null) { |
| 786 | throw new IllegalStateException("No WebView " + |
| 787 | "has been created in this process!"); |
| 788 | } |
| 789 | BrowserFrame.sJavaBridge |
| 790 | .setNetworkOnLine(msg.arg1 == 1); |
| 791 | break; |
| 792 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 793 | case CLEAR_CACHE: |
| 794 | mBrowserFrame.clearCache(); |
| 795 | if (msg.arg1 == 1) { |
| 796 | CacheManager.removeAllCacheFiles(); |
| 797 | } |
| 798 | break; |
| 799 | |
| 800 | case CLEAR_HISTORY: |
| 801 | mCallbackProxy.getBackForwardList(). |
| 802 | close(mBrowserFrame.mNativeFrame); |
| 803 | break; |
| 804 | |
| 805 | case REPLACE_TEXT: |
| 806 | HashMap jMap = (HashMap) msg.obj; |
| 807 | FocusData fData = (FocusData) jMap.get("focusData"); |
| 808 | String replace = (String) jMap.get("replace"); |
| 809 | int newStart = |
| 810 | ((Integer) jMap.get("start")).intValue(); |
| 811 | int newEnd = |
| 812 | ((Integer) jMap.get("end")).intValue(); |
| 813 | nativeReplaceTextfieldText(fData.mFrame, |
| 814 | fData.mNode, fData.mX, fData.mY, msg.arg1, |
| 815 | msg.arg2, replace, newStart, newEnd); |
| 816 | break; |
| 817 | |
| 818 | case PASS_TO_JS: { |
| 819 | HashMap jsMap = (HashMap) msg.obj; |
| 820 | FocusData fDat = (FocusData) jsMap.get("focusData"); |
| 821 | KeyEvent evt = (KeyEvent) jsMap.get("event"); |
| 822 | int keyCode = evt.getKeyCode(); |
| 823 | int keyValue = evt.getUnicodeChar(); |
| 824 | int generation = msg.arg1; |
| 825 | passToJs(fDat.mFrame, fDat.mNode, fDat.mX, fDat.mY, |
| 826 | generation, |
| 827 | (String) jsMap.get("currentText"), |
| 828 | keyCode, |
| 829 | keyValue, |
| 830 | evt.isDown(), |
| 831 | evt.isShiftPressed(), evt.isAltPressed(), |
| 832 | evt.isSymPressed()); |
| 833 | break; |
| 834 | } |
| 835 | |
| 836 | case SAVE_DOCUMENT_STATE: { |
| 837 | FocusData fDat = (FocusData) msg.obj; |
| 838 | nativeSaveDocumentState(fDat.mFrame); |
| 839 | break; |
| 840 | } |
| 841 | |
| 842 | case CLEAR_SSL_PREF_TABLE: |
| 843 | Network.getInstance(mContext) |
| 844 | .clearUserSslPrefTable(); |
| 845 | break; |
| 846 | |
| 847 | case TOUCH_UP: |
| 848 | TouchUpData touchUpData = (TouchUpData) msg.obj; |
| 849 | nativeTouchUp(touchUpData.mMoveGeneration, |
| 850 | touchUpData.mBuildGeneration, |
| 851 | touchUpData.mFrame, touchUpData.mNode, |
| 852 | touchUpData.mX, touchUpData.mY, |
| 853 | touchUpData.mSize, touchUpData.mIsClick, |
| 854 | touchUpData.mRetry); |
| 855 | break; |
| 856 | |
| 857 | case TOUCH_EVENT: { |
| 858 | TouchEventData ted = (TouchEventData) msg.obj; |
| 859 | Message.obtain( |
| 860 | mWebView.mPrivateHandler, |
| 861 | WebView.PREVENT_TOUCH_ID, ted.mAction, |
| 862 | nativeHandleTouchEvent(ted.mAction, ted.mX, |
| 863 | ted.mY) ? 1 : 0).sendToTarget(); |
| 864 | break; |
| 865 | } |
| 866 | |
| 867 | case ADD_JS_INTERFACE: |
| 868 | HashMap map = (HashMap) msg.obj; |
| 869 | Object obj = map.get("object"); |
| 870 | String interfaceName = (String) |
| 871 | map.get("interfaceName"); |
| 872 | mBrowserFrame.addJavascriptInterface(obj, |
| 873 | interfaceName); |
| 874 | break; |
| 875 | |
| 876 | case REQUEST_EXT_REPRESENTATION: |
| 877 | mBrowserFrame.externalRepresentation( |
| 878 | (Message) msg.obj); |
| 879 | break; |
| 880 | |
| 881 | case REQUEST_DOC_AS_TEXT: |
| 882 | mBrowserFrame.documentAsText((Message) msg.obj); |
| 883 | break; |
| 884 | |
| 885 | case SET_FINAL_FOCUS: |
| 886 | FocusData finalData = (FocusData) msg.obj; |
| 887 | nativeSetFinalFocus(finalData.mFrame, |
| 888 | finalData.mNode, finalData.mX, |
| 889 | finalData.mY, msg.arg1 |
| 890 | != EventHub.NO_FOCUS_CHANGE_BLOCK); |
| 891 | break; |
| 892 | |
| 893 | case UNBLOCK_FOCUS: |
| 894 | nativeUnblockFocus(); |
| 895 | break; |
| 896 | |
| 897 | case SET_KIT_FOCUS: |
| 898 | FocusData focusData = (FocusData) msg.obj; |
| 899 | nativeSetKitFocus(focusData.mMoveGeneration, |
| 900 | focusData.mBuildGeneration, |
| 901 | focusData.mFrame, focusData.mNode, |
| 902 | focusData.mX, focusData.mY, |
| 903 | focusData.mIgnoreNullFocus); |
| 904 | break; |
| 905 | |
| 906 | case REQUEST_FOCUS_HREF: { |
| 907 | Message hrefMsg = (Message) msg.obj; |
| 908 | String res = nativeRetrieveHref(msg.arg1, msg.arg2); |
| 909 | hrefMsg.getData().putString("url", res); |
| 910 | hrefMsg.sendToTarget(); |
| 911 | break; |
| 912 | } |
| 913 | |
| 914 | case UPDATE_CACHE_AND_TEXT_ENTRY: |
| 915 | nativeUpdateFrameCache(); |
| 916 | // FIXME: this should provide a minimal rectangle |
| 917 | if (mWebView != null) { |
| 918 | mWebView.postInvalidate(); |
| 919 | } |
| 920 | sendUpdateTextEntry(); |
| 921 | break; |
| 922 | |
| 923 | case DOC_HAS_IMAGES: |
| 924 | Message imageResult = (Message) msg.obj; |
| 925 | imageResult.arg1 = |
| 926 | mBrowserFrame.documentHasImages() ? 1 : 0; |
| 927 | imageResult.sendToTarget(); |
| 928 | break; |
| 929 | |
| 930 | case SET_SNAP_ANCHOR: |
| 931 | nativeSetSnapAnchor(msg.arg1, msg.arg2); |
| 932 | break; |
| 933 | |
| 934 | case DELETE_SELECTION: |
| 935 | FocusData delData = (FocusData) msg.obj; |
| 936 | nativeDeleteSelection(delData.mFrame, |
| 937 | delData.mNode, delData.mX, |
| 938 | delData.mY, msg.arg1, msg.arg2); |
| 939 | break; |
| 940 | |
| 941 | case SET_SELECTION: |
| 942 | FocusData selData = (FocusData) msg.obj; |
| 943 | nativeSetSelection(selData.mFrame, |
| 944 | selData.mNode, selData.mX, |
| 945 | selData.mY, msg.arg1, msg.arg2); |
| 946 | break; |
| 947 | |
| 948 | case LISTBOX_CHOICES: |
| 949 | SparseBooleanArray choices = (SparseBooleanArray) |
| 950 | msg.obj; |
| 951 | int choicesSize = msg.arg1; |
| 952 | boolean[] choicesArray = new boolean[choicesSize]; |
| 953 | for (int c = 0; c < choicesSize; c++) { |
| 954 | choicesArray[c] = choices.get(c); |
| 955 | } |
| 956 | nativeSendListBoxChoices(choicesArray, |
| 957 | choicesSize); |
| 958 | break; |
| 959 | |
| 960 | case SINGLE_LISTBOX_CHOICE: |
| 961 | nativeSendListBoxChoice(msg.arg1); |
| 962 | break; |
| 963 | |
| 964 | case SET_BACKGROUND_COLOR: |
| 965 | nativeSetBackgroundColor(msg.arg1); |
| 966 | break; |
| 967 | |
| 968 | case GET_SELECTION: |
| 969 | String str = nativeGetSelection((Region) msg.obj); |
| 970 | Message.obtain(mWebView.mPrivateHandler |
| 971 | , WebView.UPDATE_CLIPBOARD, str) |
| 972 | .sendToTarget(); |
| 973 | break; |
| 974 | |
| 975 | case DUMP_DOMTREE: |
| 976 | nativeDumpDomTree(msg.arg1 == 1); |
| 977 | break; |
| 978 | |
| 979 | case DUMP_RENDERTREE: |
| 980 | nativeDumpRenderTree(msg.arg1 == 1); |
| 981 | break; |
| 982 | |
| 983 | case DUMP_NAVTREE: |
| 984 | nativeDumpNavTree(); |
| 985 | break; |
| 986 | |
| 987 | case SYNC_SCROLL: |
| 988 | mWebkitScrollX = msg.arg1; |
| 989 | mWebkitScrollY = msg.arg2; |
| 990 | break; |
| 991 | |
| 992 | case REFRESH_PLUGINS: |
| 993 | nativeRefreshPlugins(msg.arg1 != 0); |
| 994 | break; |
| 995 | |
| 996 | case SPLIT_PICTURE_SET: |
| 997 | nativeSplitContent(); |
| 998 | mSplitPictureIsScheduled = false; |
| 999 | break; |
| 1000 | |
| 1001 | case CLEAR_CONTENT: |
| 1002 | // Clear the view so that onDraw() will draw nothing |
| 1003 | // but white background |
| 1004 | // (See public method WebView.clearView) |
| 1005 | nativeClearContent(); |
| 1006 | break; |
| 1007 | } |
| 1008 | } |
| 1009 | }; |
| 1010 | // Take all queued messages and resend them to the new handler. |
| 1011 | synchronized (this) { |
| 1012 | int size = mMessages.size(); |
| 1013 | for (int i = 0; i < size; i++) { |
| 1014 | mHandler.sendMessage(mMessages.get(i)); |
| 1015 | } |
| 1016 | mMessages = null; |
| 1017 | } |
| 1018 | } |
| 1019 | |
| 1020 | /** |
| 1021 | * Send a message internally to the queue or to the handler |
| 1022 | */ |
| 1023 | private synchronized void sendMessage(Message msg) { |
| 1024 | if (mBlockMessages) { |
| 1025 | return; |
| 1026 | } |
| 1027 | if (mMessages != null) { |
| 1028 | mMessages.add(msg); |
| 1029 | } else { |
| 1030 | mHandler.sendMessage(msg); |
| 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | private synchronized void removeMessages(int what) { |
| 1035 | if (mBlockMessages) { |
| 1036 | return; |
| 1037 | } |
| 1038 | if (what == EventHub.WEBKIT_DRAW) { |
| 1039 | mDrawIsScheduled = false; |
| 1040 | } |
| 1041 | if (mMessages != null) { |
| 1042 | Log.w(LOGTAG, "Not supported in this case."); |
| 1043 | } else { |
| 1044 | mHandler.removeMessages(what); |
| 1045 | } |
| 1046 | } |
| 1047 | |
| 1048 | private synchronized void sendMessageDelayed(Message msg, long delay) { |
| 1049 | if (mBlockMessages) { |
| 1050 | return; |
| 1051 | } |
| 1052 | mHandler.sendMessageDelayed(msg, delay); |
| 1053 | } |
| 1054 | |
| 1055 | /** |
| 1056 | * Send a message internally to the front of the queue. |
| 1057 | */ |
| 1058 | private synchronized void sendMessageAtFrontOfQueue(Message msg) { |
| 1059 | if (mBlockMessages) { |
| 1060 | return; |
| 1061 | } |
| 1062 | if (mMessages != null) { |
| 1063 | mMessages.add(0, msg); |
| 1064 | } else { |
| 1065 | mHandler.sendMessageAtFrontOfQueue(msg); |
| 1066 | } |
| 1067 | } |
| 1068 | |
| 1069 | /** |
| 1070 | * Remove all the messages. |
| 1071 | */ |
| 1072 | private synchronized void removeMessages() { |
| 1073 | // reset mDrawIsScheduled flag as WEBKIT_DRAW may be removed |
| 1074 | mDrawIsScheduled = false; |
| 1075 | mSplitPictureIsScheduled = false; |
| 1076 | if (mMessages != null) { |
| 1077 | mMessages.clear(); |
| 1078 | } else { |
| 1079 | mHandler.removeCallbacksAndMessages(null); |
| 1080 | } |
| 1081 | } |
| 1082 | |
| 1083 | /** |
| 1084 | * Block sending messages to the EventHub. |
| 1085 | */ |
| 1086 | private synchronized void blockMessages() { |
| 1087 | mBlockMessages = true; |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | //------------------------------------------------------------------------- |
| 1092 | // Methods called by host activity (in the same thread) |
| 1093 | //------------------------------------------------------------------------- |
| 1094 | |
| 1095 | void stopLoading() { |
| 1096 | if (LOGV_ENABLED) Log.v(LOGTAG, "CORE stopLoading"); |
| 1097 | if (mBrowserFrame != null) { |
| 1098 | mBrowserFrame.stopLoading(); |
| 1099 | } |
| 1100 | } |
| 1101 | |
| 1102 | //------------------------------------------------------------------------- |
| 1103 | // Methods called by WebView |
| 1104 | // If it refers to local variable, it needs synchronized(). |
| 1105 | // If it needs WebCore, it has to send message. |
| 1106 | //------------------------------------------------------------------------- |
| 1107 | |
| 1108 | void sendMessage(Message msg) { |
| 1109 | mEventHub.sendMessage(msg); |
| 1110 | } |
| 1111 | |
| 1112 | void sendMessage(int what) { |
| 1113 | mEventHub.sendMessage(Message.obtain(null, what)); |
| 1114 | } |
| 1115 | |
| 1116 | void sendMessage(int what, Object obj) { |
| 1117 | mEventHub.sendMessage(Message.obtain(null, what, obj)); |
| 1118 | } |
| 1119 | |
| 1120 | void sendMessage(int what, int arg1) { |
| 1121 | // just ignore the second argument (make it 0) |
| 1122 | mEventHub.sendMessage(Message.obtain(null, what, arg1, 0)); |
| 1123 | } |
| 1124 | |
| 1125 | void sendMessage(int what, int arg1, int arg2) { |
| 1126 | mEventHub.sendMessage(Message.obtain(null, what, arg1, arg2)); |
| 1127 | } |
| 1128 | |
| 1129 | void sendMessage(int what, int arg1, Object obj) { |
| 1130 | // just ignore the second argument (make it 0) |
| 1131 | mEventHub.sendMessage(Message.obtain(null, what, arg1, 0, obj)); |
| 1132 | } |
| 1133 | |
| 1134 | void sendMessage(int what, int arg1, int arg2, Object obj) { |
| 1135 | mEventHub.sendMessage(Message.obtain(null, what, arg1, arg2, obj)); |
| 1136 | } |
| 1137 | |
| 1138 | void sendMessageDelayed(int what, Object obj, long delay) { |
| 1139 | mEventHub.sendMessageDelayed(Message.obtain(null, what, obj), delay); |
| 1140 | } |
| 1141 | |
| 1142 | void removeMessages(int what) { |
| 1143 | mEventHub.removeMessages(what); |
| 1144 | } |
| 1145 | |
| 1146 | void removeMessages() { |
| 1147 | mEventHub.removeMessages(); |
| 1148 | } |
| 1149 | |
| 1150 | /** |
| 1151 | * Removes pending messages and trigger a DESTROY message to send to |
| 1152 | * WebCore. |
| 1153 | * Called from UI thread. |
| 1154 | */ |
| 1155 | void destroy() { |
| 1156 | // We don't want anyone to post a message between removing pending |
| 1157 | // messages and sending the destroy message. |
| 1158 | synchronized (mEventHub) { |
| 1159 | mEventHub.removeMessages(); |
| 1160 | mEventHub.sendMessageAtFrontOfQueue( |
| 1161 | Message.obtain(null, EventHub.DESTROY)); |
| 1162 | mEventHub.blockMessages(); |
| 1163 | mWebView = null; |
| 1164 | } |
| 1165 | } |
| 1166 | |
| 1167 | //------------------------------------------------------------------------- |
| 1168 | // WebViewCore private methods |
| 1169 | //------------------------------------------------------------------------- |
| 1170 | |
| 1171 | private void loadUrl(String url) { |
| 1172 | if (LOGV_ENABLED) Log.v(LOGTAG, " CORE loadUrl " + url); |
| 1173 | mBrowserFrame.loadUrl(url); |
| 1174 | } |
| 1175 | |
| 1176 | private void key(KeyEvent evt, boolean isDown) { |
| 1177 | if (LOGV_ENABLED) { |
| 1178 | Log.v(LOGTAG, "CORE key at " + System.currentTimeMillis() + ", " |
| 1179 | + evt); |
| 1180 | } |
| 1181 | if (!nativeKey(evt.getKeyCode(), evt.getUnicodeChar(), |
| 1182 | evt.getRepeatCount(), evt.isShiftPressed(), evt.isAltPressed(), |
| 1183 | isDown)) { |
| 1184 | // bubble up the event handling |
| 1185 | mCallbackProxy.onUnhandledKeyEvent(evt); |
| 1186 | } |
| 1187 | } |
| 1188 | |
| 1189 | // These values are used to avoid requesting a layout based on old values |
| 1190 | private int mCurrentViewWidth = 0; |
| 1191 | private int mCurrentViewHeight = 0; |
| 1192 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1193 | // notify webkit that our virtual view size changed size (after inv-zoom) |
The Android Open Source Project | ba87e3e | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 1194 | private void viewSizeChanged(int w, int h, float scale) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1195 | if (LOGV_ENABLED) Log.v(LOGTAG, "CORE onSizeChanged"); |
| 1196 | if (w == 0) { |
| 1197 | Log.w(LOGTAG, "skip viewSizeChanged as w is 0"); |
| 1198 | return; |
| 1199 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1200 | if (mSettings.getUseWideViewPort() |
| 1201 | && (w < mViewportWidth || mViewportWidth == -1)) { |
| 1202 | int width = mViewportWidth; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1203 | if (mViewportWidth == -1) { |
| 1204 | if (mSettings.getLayoutAlgorithm() == |
| 1205 | WebSettings.LayoutAlgorithm.NORMAL) { |
| 1206 | width = WebView.ZOOM_OUT_WIDTH; |
| 1207 | } else { |
| 1208 | /* |
| 1209 | * if a page's minimum preferred width is wider than the |
| 1210 | * given "w", use it instead to get better layout result. If |
| 1211 | * we start a page with MAX_ZOOM_WIDTH, "w" will be always |
| 1212 | * wider. If we start a page with screen width, due to the |
| 1213 | * delay between {@link #didFirstLayout} and |
| 1214 | * {@link #viewSizeChanged}, |
| 1215 | * {@link #nativeGetContentMinPrefWidth} will return a more |
| 1216 | * accurate value than initial 0 to result a better layout. |
| 1217 | * In the worse case, the native width will be adjusted when |
| 1218 | * next zoom or screen orientation change happens. |
| 1219 | */ |
The Android Open Source Project | ba87e3e | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 1220 | width = Math.max(w, nativeGetContentMinPrefWidth()); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1221 | } |
| 1222 | } |
The Android Open Source Project | ba87e3e | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 1223 | nativeSetSize(width, Math.round((float) width * h / w), w, scale, |
| 1224 | w, h); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1225 | } else { |
| 1226 | nativeSetSize(w, h, w, scale, w, h); |
| 1227 | } |
| 1228 | // Remember the current width and height |
| 1229 | boolean needInvalidate = (mCurrentViewWidth == 0); |
| 1230 | mCurrentViewWidth = w; |
| 1231 | mCurrentViewHeight = h; |
| 1232 | if (needInvalidate) { |
| 1233 | // ensure {@link #webkitDraw} is called as we were blocking in |
| 1234 | // {@link #contentDraw} when mCurrentViewWidth is 0 |
| 1235 | if (LOGV_ENABLED) Log.v(LOGTAG, "viewSizeChanged"); |
| 1236 | contentDraw(); |
| 1237 | } |
| 1238 | mEventHub.sendMessage(Message.obtain(null, |
| 1239 | EventHub.UPDATE_CACHE_AND_TEXT_ENTRY)); |
| 1240 | } |
| 1241 | |
| 1242 | private void sendUpdateTextEntry() { |
| 1243 | if (mWebView != null) { |
| 1244 | Message.obtain(mWebView.mPrivateHandler, |
| 1245 | WebView.UPDATE_TEXT_ENTRY_MSG_ID).sendToTarget(); |
| 1246 | } |
| 1247 | } |
| 1248 | |
| 1249 | // Used to avoid posting more than one draw message. |
| 1250 | private boolean mDrawIsScheduled; |
| 1251 | |
| 1252 | // Used to avoid posting more than one split picture message. |
| 1253 | private boolean mSplitPictureIsScheduled; |
| 1254 | |
| 1255 | // Used to suspend drawing. |
| 1256 | private boolean mDrawIsPaused; |
| 1257 | |
| 1258 | // Used to end scale+scroll mode, accessed by both threads |
| 1259 | boolean mEndScaleZoom = false; |
| 1260 | |
| 1261 | public class DrawData { |
| 1262 | public DrawData() { |
| 1263 | mInvalRegion = new Region(); |
| 1264 | mWidthHeight = new Point(); |
| 1265 | } |
| 1266 | public Region mInvalRegion; |
| 1267 | public Point mViewPoint; |
| 1268 | public Point mWidthHeight; |
| 1269 | } |
| 1270 | |
| 1271 | private void webkitDraw() { |
| 1272 | mDrawIsScheduled = false; |
| 1273 | DrawData draw = new DrawData(); |
| 1274 | if (LOGV_ENABLED) Log.v(LOGTAG, "webkitDraw start"); |
| 1275 | if (nativeRecordContent(draw.mInvalRegion, draw.mWidthHeight) |
| 1276 | == false) { |
| 1277 | if (LOGV_ENABLED) Log.v(LOGTAG, "webkitDraw abort"); |
| 1278 | return; |
| 1279 | } |
| 1280 | if (mWebView != null) { |
| 1281 | // Send the native view size that was used during the most recent |
| 1282 | // layout. |
| 1283 | draw.mViewPoint = new Point(mCurrentViewWidth, mCurrentViewHeight); |
| 1284 | if (LOGV_ENABLED) Log.v(LOGTAG, "webkitDraw NEW_PICTURE_MSG_ID"); |
| 1285 | Message.obtain(mWebView.mPrivateHandler, |
The Android Open Source Project | ba87e3e | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 1286 | WebView.NEW_PICTURE_MSG_ID, draw).sendToTarget(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1287 | if (mWebkitScrollX != 0 || mWebkitScrollY != 0) { |
| 1288 | // as we have the new picture, try to sync the scroll position |
| 1289 | Message.obtain(mWebView.mPrivateHandler, |
| 1290 | WebView.SYNC_SCROLL_TO_MSG_ID, mWebkitScrollX, |
| 1291 | mWebkitScrollY).sendToTarget(); |
| 1292 | mWebkitScrollX = mWebkitScrollY = 0; |
| 1293 | } |
| 1294 | // nativeSnapToAnchor() needs to be called after NEW_PICTURE_MSG_ID |
| 1295 | // is sent, so that scroll will be based on the new content size. |
| 1296 | nativeSnapToAnchor(); |
| 1297 | } |
| 1298 | } |
| 1299 | |
| 1300 | /////////////////////////////////////////////////////////////////////////// |
| 1301 | // These are called from the UI thread, not our thread |
| 1302 | |
| 1303 | static final int ZOOM_BITS = Paint.FILTER_BITMAP_FLAG | |
| 1304 | Paint.DITHER_FLAG | |
| 1305 | Paint.SUBPIXEL_TEXT_FLAG; |
| 1306 | static final int SCROLL_BITS = Paint.FILTER_BITMAP_FLAG | |
| 1307 | Paint.DITHER_FLAG; |
| 1308 | |
| 1309 | final DrawFilter mZoomFilter = |
| 1310 | new PaintFlagsDrawFilter(ZOOM_BITS, Paint.LINEAR_TEXT_FLAG); |
| 1311 | final DrawFilter mScrollFilter = |
| 1312 | new PaintFlagsDrawFilter(SCROLL_BITS, 0); |
| 1313 | |
| 1314 | /* package */ void drawContentPicture(Canvas canvas, int color, |
| 1315 | boolean animatingZoom, |
| 1316 | boolean animatingScroll) { |
| 1317 | DrawFilter df = null; |
| 1318 | if (animatingZoom) { |
| 1319 | df = mZoomFilter; |
| 1320 | } else if (animatingScroll) { |
| 1321 | df = mScrollFilter; |
| 1322 | } |
| 1323 | canvas.setDrawFilter(df); |
| 1324 | boolean tookTooLong = nativeDrawContent(canvas, color); |
| 1325 | canvas.setDrawFilter(null); |
| 1326 | if (tookTooLong && mSplitPictureIsScheduled == false) { |
| 1327 | mSplitPictureIsScheduled = true; |
| 1328 | sendMessage(EventHub.SPLIT_PICTURE_SET); |
| 1329 | } |
| 1330 | } |
| 1331 | |
| 1332 | /*package*/ Picture copyContentPicture() { |
| 1333 | Picture result = new Picture(); |
| 1334 | nativeCopyContentToPicture(result); |
| 1335 | return result; |
| 1336 | } |
| 1337 | |
| 1338 | static void pauseUpdate(WebViewCore core) { |
| 1339 | // remove the pending REDUCE_PRIORITY and RESUME_PRIORITY messages |
| 1340 | sWebCoreHandler.removeMessages(WebCoreThread.REDUCE_PRIORITY); |
| 1341 | sWebCoreHandler.removeMessages(WebCoreThread.RESUME_PRIORITY); |
| 1342 | sWebCoreHandler.sendMessageAtFrontOfQueue(sWebCoreHandler |
| 1343 | .obtainMessage(WebCoreThread.REDUCE_PRIORITY)); |
| 1344 | // Note: there is one possible failure mode. If pauseUpdate() is called |
| 1345 | // from UI thread while in webcore thread WEBKIT_DRAW is just pulled out |
| 1346 | // of the queue and about to be executed. mDrawIsScheduled may be set to |
| 1347 | // false in webkitDraw(). So update won't be blocked. But at least the |
| 1348 | // webcore thread priority is still lowered. |
| 1349 | if (core != null) { |
| 1350 | synchronized (core) { |
| 1351 | core.mDrawIsPaused = true; |
| 1352 | core.mEventHub.removeMessages(EventHub.WEBKIT_DRAW); |
| 1353 | } |
| 1354 | } |
| 1355 | } |
| 1356 | |
| 1357 | static void resumeUpdate(WebViewCore core) { |
| 1358 | // remove the pending REDUCE_PRIORITY and RESUME_PRIORITY messages |
| 1359 | sWebCoreHandler.removeMessages(WebCoreThread.REDUCE_PRIORITY); |
| 1360 | sWebCoreHandler.removeMessages(WebCoreThread.RESUME_PRIORITY); |
| 1361 | sWebCoreHandler.sendMessageAtFrontOfQueue(sWebCoreHandler |
| 1362 | .obtainMessage(WebCoreThread.RESUME_PRIORITY)); |
| 1363 | if (core != null) { |
| 1364 | synchronized (core) { |
| 1365 | core.mDrawIsScheduled = false; |
| 1366 | core.mDrawIsPaused = false; |
| 1367 | if (LOGV_ENABLED) Log.v(LOGTAG, "resumeUpdate"); |
| 1368 | core.contentDraw(); |
| 1369 | } |
| 1370 | } |
| 1371 | } |
| 1372 | |
| 1373 | static void startCacheTransaction() { |
| 1374 | sWebCoreHandler.sendMessage(sWebCoreHandler |
| 1375 | .obtainMessage(WebCoreThread.RESUME_CACHE_TICKER)); |
| 1376 | } |
| 1377 | |
| 1378 | static void endCacheTransaction() { |
| 1379 | sWebCoreHandler.sendMessage(sWebCoreHandler |
| 1380 | .obtainMessage(WebCoreThread.BLOCK_CACHE_TICKER)); |
| 1381 | } |
| 1382 | |
| 1383 | ////////////////////////////////////////////////////////////////////////// |
| 1384 | |
| 1385 | private void restoreState(int index) { |
| 1386 | WebBackForwardList list = mCallbackProxy.getBackForwardList(); |
| 1387 | int size = list.getSize(); |
| 1388 | for (int i = 0; i < size; i++) { |
| 1389 | list.getItemAtIndex(i).inflate(mBrowserFrame.mNativeFrame); |
| 1390 | } |
| 1391 | mBrowserFrame.mLoadInitFromJava = true; |
| 1392 | list.restoreIndex(mBrowserFrame.mNativeFrame, index); |
| 1393 | mBrowserFrame.mLoadInitFromJava = false; |
| 1394 | } |
| 1395 | |
| 1396 | //------------------------------------------------------------------------- |
| 1397 | // Implement abstract methods in WebViewCore, native WebKit callback part |
| 1398 | //------------------------------------------------------------------------- |
| 1399 | |
| 1400 | // called from JNI or WebView thread |
| 1401 | /* package */ void contentDraw() { |
| 1402 | // don't update the Picture until we have an initial width and finish |
| 1403 | // the first layout |
| 1404 | if (mCurrentViewWidth == 0 || !mBrowserFrame.firstLayoutDone()) { |
| 1405 | return; |
| 1406 | } |
| 1407 | // only fire an event if this is our first request |
| 1408 | synchronized (this) { |
| 1409 | if (mDrawIsPaused || mDrawIsScheduled) { |
| 1410 | return; |
| 1411 | } |
| 1412 | mDrawIsScheduled = true; |
| 1413 | mEventHub.sendMessage(Message.obtain(null, EventHub.WEBKIT_DRAW)); |
| 1414 | } |
| 1415 | } |
| 1416 | |
| 1417 | // called by JNI |
| 1418 | private void contentScrollBy(int dx, int dy, boolean animate) { |
| 1419 | if (!mBrowserFrame.firstLayoutDone()) { |
| 1420 | // Will this happen? If yes, we need to do something here. |
| 1421 | return; |
| 1422 | } |
| 1423 | if (mWebView != null) { |
| 1424 | Message.obtain(mWebView.mPrivateHandler, |
| 1425 | WebView.SCROLL_BY_MSG_ID, dx, dy, |
| 1426 | new Boolean(animate)).sendToTarget(); |
| 1427 | } |
| 1428 | } |
| 1429 | |
| 1430 | // called by JNI |
| 1431 | private void contentScrollTo(int x, int y) { |
| 1432 | if (!mBrowserFrame.firstLayoutDone()) { |
| 1433 | /* |
| 1434 | * WebKit restore state will be called before didFirstLayout(), |
| 1435 | * remember the position as it has to be applied after restoring |
| 1436 | * zoom factor which is controlled by screenWidth. |
| 1437 | */ |
| 1438 | mRestoredX = x; |
| 1439 | mRestoredY = y; |
| 1440 | return; |
| 1441 | } |
| 1442 | if (mWebView != null) { |
| 1443 | Message.obtain(mWebView.mPrivateHandler, |
| 1444 | WebView.SCROLL_TO_MSG_ID, x, y).sendToTarget(); |
| 1445 | } |
| 1446 | } |
| 1447 | |
| 1448 | // called by JNI |
| 1449 | private void contentSpawnScrollTo(int x, int y) { |
| 1450 | if (!mBrowserFrame.firstLayoutDone()) { |
| 1451 | /* |
| 1452 | * WebKit restore state will be called before didFirstLayout(), |
| 1453 | * remember the position as it has to be applied after restoring |
| 1454 | * zoom factor which is controlled by screenWidth. |
| 1455 | */ |
| 1456 | mRestoredX = x; |
| 1457 | mRestoredY = y; |
| 1458 | return; |
| 1459 | } |
| 1460 | if (mWebView != null) { |
| 1461 | Message.obtain(mWebView.mPrivateHandler, |
| 1462 | WebView.SPAWN_SCROLL_TO_MSG_ID, x, y).sendToTarget(); |
| 1463 | } |
| 1464 | } |
| 1465 | |
| 1466 | // called by JNI |
| 1467 | private void sendMarkNodeInvalid(int node) { |
| 1468 | if (mWebView != null) { |
| 1469 | Message.obtain(mWebView.mPrivateHandler, |
| 1470 | WebView.MARK_NODE_INVALID_ID, node, 0).sendToTarget(); |
| 1471 | } |
| 1472 | } |
| 1473 | |
| 1474 | // called by JNI |
| 1475 | private void sendNotifyFocusSet() { |
| 1476 | if (mWebView != null) { |
| 1477 | Message.obtain(mWebView.mPrivateHandler, |
| 1478 | WebView.NOTIFY_FOCUS_SET_MSG_ID).sendToTarget(); |
| 1479 | } |
| 1480 | } |
| 1481 | |
| 1482 | // called by JNI |
| 1483 | private void sendNotifyProgressFinished() { |
| 1484 | sendUpdateTextEntry(); |
| 1485 | // as CacheManager can behave based on database transaction, we need to |
| 1486 | // call tick() to trigger endTransaction |
| 1487 | sWebCoreHandler.removeMessages(WebCoreThread.CACHE_TICKER); |
| 1488 | sWebCoreHandler.sendMessage(sWebCoreHandler |
| 1489 | .obtainMessage(WebCoreThread.CACHE_TICKER)); |
| 1490 | contentDraw(); |
| 1491 | } |
| 1492 | |
| 1493 | // called by JNI |
| 1494 | private void sendRecomputeFocus() { |
| 1495 | if (mWebView != null) { |
| 1496 | Message.obtain(mWebView.mPrivateHandler, |
| 1497 | WebView.RECOMPUTE_FOCUS_MSG_ID).sendToTarget(); |
| 1498 | } |
| 1499 | } |
| 1500 | |
| 1501 | /* Called by JNI. The coordinates are in doc coordinates, so they need to |
| 1502 | be scaled before they can be used by the view system, which happens |
| 1503 | in WebView since it (and its thread) know the current scale factor. |
| 1504 | */ |
| 1505 | private void sendViewInvalidate(int left, int top, int right, int bottom) { |
| 1506 | if (mWebView != null) { |
| 1507 | Message.obtain(mWebView.mPrivateHandler, |
| 1508 | WebView.INVAL_RECT_MSG_ID, |
| 1509 | new Rect(left, top, right, bottom)).sendToTarget(); |
| 1510 | } |
| 1511 | } |
| 1512 | |
| 1513 | /* package */ WebView getWebView() { |
| 1514 | return mWebView; |
| 1515 | } |
| 1516 | |
| 1517 | private native void setViewportSettingsFromNative(); |
| 1518 | |
| 1519 | // called by JNI |
| 1520 | private void didFirstLayout() { |
| 1521 | // Trick to ensure that the Picture has the exact height for the content |
| 1522 | // by forcing to layout with 0 height after the page is ready, which is |
| 1523 | // indicated by didFirstLayout. This is essential to get rid of the |
| 1524 | // white space in the GMail which uses WebView for message view. |
| 1525 | if (mWebView != null && mWebView.mHeightCanMeasure) { |
| 1526 | mWebView.mLastHeightSent = 0; |
The Android Open Source Project | ba87e3e | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 1527 | // Send a negative scale to indicate that WebCore should reuse the |
| 1528 | // current scale |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1529 | mEventHub.sendMessage(Message.obtain(null, |
| 1530 | EventHub.VIEW_SIZE_CHANGED, mWebView.mLastWidthSent, |
The Android Open Source Project | ba87e3e | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 1531 | mWebView.mLastHeightSent, -1.0f)); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1532 | } |
| 1533 | |
| 1534 | mBrowserFrame.didFirstLayout(); |
| 1535 | |
| 1536 | // reset the scroll position as it is a new page now |
| 1537 | mWebkitScrollX = mWebkitScrollY = 0; |
| 1538 | |
| 1539 | // set the viewport settings from WebKit |
| 1540 | setViewportSettingsFromNative(); |
| 1541 | |
| 1542 | // infer the values if they are not defined. |
| 1543 | if (mViewportWidth == 0) { |
| 1544 | if (mViewportInitialScale == 0) { |
| 1545 | mViewportInitialScale = 100; |
| 1546 | } |
| 1547 | if (mViewportMinimumScale == 0) { |
| 1548 | mViewportMinimumScale = 100; |
| 1549 | } |
| 1550 | } |
| 1551 | if (mViewportUserScalable == false) { |
| 1552 | mViewportInitialScale = 100; |
| 1553 | mViewportMinimumScale = 100; |
| 1554 | mViewportMaximumScale = 100; |
| 1555 | } |
| 1556 | if (mViewportMinimumScale > mViewportInitialScale) { |
| 1557 | if (mViewportInitialScale == 0) { |
| 1558 | mViewportInitialScale = mViewportMinimumScale; |
| 1559 | } else { |
| 1560 | mViewportMinimumScale = mViewportInitialScale; |
| 1561 | } |
| 1562 | } |
| 1563 | if (mViewportMaximumScale > 0) { |
| 1564 | if (mViewportMaximumScale < mViewportInitialScale) { |
| 1565 | mViewportMaximumScale = mViewportInitialScale; |
| 1566 | } else if (mViewportInitialScale == 0) { |
| 1567 | mViewportInitialScale = mViewportMaximumScale; |
| 1568 | } |
| 1569 | } |
| 1570 | if (mViewportWidth < 0 && mViewportInitialScale == 100) { |
| 1571 | mViewportWidth = 0; |
| 1572 | } |
| 1573 | |
| 1574 | // now notify webview |
| 1575 | if (mWebView != null) { |
| 1576 | HashMap scaleLimit = new HashMap(); |
| 1577 | scaleLimit.put("minScale", mViewportMinimumScale); |
| 1578 | scaleLimit.put("maxScale", mViewportMaximumScale); |
| 1579 | |
| 1580 | if (mRestoredScale > 0) { |
| 1581 | Message.obtain(mWebView.mPrivateHandler, |
| 1582 | WebView.DID_FIRST_LAYOUT_MSG_ID, mRestoredScale, 0, |
| 1583 | scaleLimit).sendToTarget(); |
| 1584 | mRestoredScale = 0; |
| 1585 | } else { |
| 1586 | Message.obtain(mWebView.mPrivateHandler, |
| 1587 | WebView.DID_FIRST_LAYOUT_MSG_ID, mViewportInitialScale, |
| 1588 | mViewportWidth, scaleLimit).sendToTarget(); |
| 1589 | } |
| 1590 | |
| 1591 | // if no restored offset, move the new page to (0, 0) |
| 1592 | Message.obtain(mWebView.mPrivateHandler, WebView.SCROLL_TO_MSG_ID, |
| 1593 | mRestoredX, mRestoredY).sendToTarget(); |
| 1594 | mRestoredX = mRestoredY = 0; |
| 1595 | |
| 1596 | // force an early draw for quick feedback after the first layout |
| 1597 | if (mCurrentViewWidth != 0) { |
| 1598 | synchronized (this) { |
| 1599 | if (mDrawIsScheduled) { |
| 1600 | mEventHub.removeMessages(EventHub.WEBKIT_DRAW); |
| 1601 | } |
| 1602 | mDrawIsScheduled = true; |
| 1603 | mEventHub.sendMessageAtFrontOfQueue(Message.obtain(null, |
| 1604 | EventHub.WEBKIT_DRAW)); |
| 1605 | } |
| 1606 | } |
| 1607 | } |
| 1608 | } |
| 1609 | |
| 1610 | // called by JNI |
| 1611 | private void restoreScale(int scale) { |
| 1612 | if (mBrowserFrame.firstLayoutDone() == false) { |
| 1613 | mRestoredScale = scale; |
| 1614 | } |
| 1615 | } |
| 1616 | |
| 1617 | // called by JNI |
| 1618 | private void needTouchEvents(boolean need) { |
| 1619 | if (mWebView != null) { |
| 1620 | Message.obtain(mWebView.mPrivateHandler, |
| 1621 | WebView.WEBCORE_NEED_TOUCH_EVENTS, need ? 1 : 0, 0) |
| 1622 | .sendToTarget(); |
| 1623 | } |
| 1624 | } |
| 1625 | |
| 1626 | // called by JNI |
| 1627 | private void updateTextfield(int ptr, boolean changeToPassword, |
| 1628 | String text, int textGeneration) { |
| 1629 | if (mWebView != null) { |
| 1630 | Message msg = Message.obtain(mWebView.mPrivateHandler, |
| 1631 | WebView.UPDATE_TEXTFIELD_TEXT_MSG_ID, ptr, |
| 1632 | textGeneration, text); |
| 1633 | msg.getData().putBoolean("password", changeToPassword); |
| 1634 | msg.sendToTarget(); |
| 1635 | } |
| 1636 | } |
| 1637 | |
| 1638 | // these must be in document space (i.e. not scaled/zoomed). |
| 1639 | private native void nativeSetScrollOffset(int dx, int dy); |
| 1640 | |
| 1641 | private native void nativeSetGlobalBounds(int x, int y, int w, int h); |
| 1642 | |
| 1643 | // called by JNI |
| 1644 | private void requestListBox(String[] array, boolean[] enabledArray, |
| 1645 | int[] selectedArray) { |
| 1646 | if (mWebView != null) { |
| 1647 | mWebView.requestListBox(array, enabledArray, selectedArray); |
| 1648 | } |
| 1649 | } |
| 1650 | |
| 1651 | // called by JNI |
| 1652 | private void requestListBox(String[] array, boolean[] enabledArray, |
| 1653 | int selection) { |
| 1654 | if (mWebView != null) { |
| 1655 | mWebView.requestListBox(array, enabledArray, selection); |
| 1656 | } |
| 1657 | |
| 1658 | } |
| 1659 | } |