1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.view; 18 19 import android.Manifest; 20 import android.animation.LayoutTransition; 21 import android.app.ActivityManagerNative; 22 import android.content.ClipDescription; 23 import android.content.ComponentCallbacks; 24 import android.content.ComponentCallbacks2; 25 import android.content.Context; 26 import android.content.pm.ApplicationInfo; 27 import android.content.pm.PackageManager; 28 import android.content.res.CompatibilityInfo; 29 import android.content.res.Configuration; 30 import android.content.res.Resources; 31 import android.graphics.Canvas; 32 import android.graphics.Paint; 33 import android.graphics.PixelFormat; 34 import android.graphics.Point; 35 import android.graphics.PointF; 36 import android.graphics.PorterDuff; 37 import android.graphics.Rect; 38 import android.graphics.Region; 39 import android.graphics.drawable.Drawable; 40 import android.media.AudioManager; 41 import android.os.Binder; 42 import android.os.Bundle; 43 import android.os.Debug; 44 import android.os.Handler; 45 import android.os.LatencyTimer; 46 import android.os.Looper; 47 import android.os.Message; 48 import android.os.ParcelFileDescriptor; 49 import android.os.PowerManager; 50 import android.os.Process; 51 import android.os.RemoteException; 52 import android.os.SystemClock; 53 import android.os.SystemProperties; 54 import android.os.Trace; 55 import android.util.AndroidRuntimeException; 56 import android.util.DisplayMetrics; 57 import android.util.Log; 58 import android.util.Slog; 59 import android.util.TypedValue; 60 import android.view.View.AttachInfo; 61 import android.view.View.MeasureSpec; 62 import android.view.accessibility.AccessibilityEvent; 63 import android.view.accessibility.AccessibilityManager; 64 import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65 import android.view.accessibility.AccessibilityNodeInfo; 66 import android.view.accessibility.AccessibilityNodeProvider; 67 import android.view.accessibility.IAccessibilityInteractionConnection; 68 import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69 import android.view.animation.AccelerateDecelerateInterpolator; 70 import android.view.animation.Interpolator; 71 import android.view.inputmethod.InputConnection; 72 import android.view.inputmethod.InputMethodManager; 73 import android.widget.Scroller; 74 75 import com.android.internal.R; 76 import com.android.internal.os.SomeArgs; 77 import com.android.internal.policy.PolicyManager; 78 import com.android.internal.view.BaseSurfaceHolder; 79 import com.android.internal.view.RootViewSurfaceTaker; 80 81 import java.io.IOException; 82 import java.io.OutputStream; 83 import java.lang.ref.WeakReference; 84 import java.util.ArrayList; 85 import java.util.HashSet; 86 87 /** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94 @SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95 public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 129 130 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 131 static boolean sFirstDrawComplete = false; 132 133 static final ArrayList<ComponentCallbacks> sConfigCallbacks 134 = new ArrayList<ComponentCallbacks>(); 135 136 private static boolean sUseRenderThread = false; 137 private static boolean sRenderThreadQueried = false; 138 private static final Object[] sRenderThreadQueryLock = new Object[0]; 139 140 final IWindowSession mWindowSession; 141 final Display mDisplay; 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 int mLastJoystickXDirection; 148 int mLastJoystickYDirection; 149 int mLastJoystickXKeyCode; 150 int mLastJoystickYKeyCode; 151 152 final int[] mTmpLocation = new int[2]; 153 154 final TypedValue mTmpValue = new TypedValue(); 155 156 final InputMethodCallback mInputMethodCallback; 157 final Thread mThread; 158 159 final WindowLeaked mLocation; 160 161 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 162 163 final W mWindow; 164 165 final int mTargetSdkVersion; 166 167 int mSeq; 168 169 View mView; 170 View mFocusedView; 171 View mRealFocusedView; // this is not set to null in touch mode 172 View mOldFocusedView; 173 174 View mAccessibilityFocusedHost; 175 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 176 177 int mViewVisibility; 178 boolean mAppVisible = true; 179 int mOrigWindowType = -1; 180 181 // Set to true if the owner of this window is in the stopped state, 182 // so the window should no longer be active. 183 boolean mStopped = false; 184 185 boolean mLastInCompatMode = false; 186 187 SurfaceHolder.Callback2 mSurfaceHolderCallback; 188 BaseSurfaceHolder mSurfaceHolder; 189 boolean mIsCreating; 190 boolean mDrawingAllowed; 191 192 final Region mTransparentRegion; 193 final Region mPreviousTransparentRegion; 194 195 int mWidth; 196 int mHeight; 197 Rect mDirty; 198 final Rect mCurrentDirty = new Rect(); 199 final Rect mPreviousDirty = new Rect(); 200 boolean mIsAnimating; 201 202 CompatibilityInfo.Translator mTranslator; 203 204 final View.AttachInfo mAttachInfo; 205 InputChannel mInputChannel; 206 InputQueue.Callback mInputQueueCallback; 207 InputQueue mInputQueue; 208 FallbackEventHandler mFallbackEventHandler; 209 Choreographer mChoreographer; 210 211 final Rect mTempRect; // used in the transaction to not thrash the heap. 212 final Rect mVisRect; // used to retrieve visible rect of focused view. 213 214 boolean mTraversalScheduled; 215 int mTraversalBarrier; 216 boolean mWillDrawSoon; 217 /** Set to true while in performTraversals for detecting when die(true) is called from internal 218 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 219 boolean mIsInTraversal; 220 boolean mFitSystemWindowsRequested; 221 boolean mLayoutRequested; 222 boolean mFirst; 223 boolean mReportNextDraw; 224 boolean mFullRedrawNeeded; 225 boolean mNewSurfaceNeeded; 226 boolean mHasHadWindowFocus; 227 boolean mLastWasImTarget; 228 boolean mWindowsAnimating; 229 boolean mIsDrawing; 230 int mLastSystemUiVisibility; 231 int mClientWindowLayoutFlags; 232 233 // Pool of queued input events. 234 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 235 private QueuedInputEvent mQueuedInputEventPool; 236 private int mQueuedInputEventPoolSize; 237 238 // Input event queue. 239 QueuedInputEvent mFirstPendingInputEvent; 240 QueuedInputEvent mCurrentInputEvent; 241 boolean mProcessInputEventsScheduled; 242 243 boolean mWindowAttributesChanged = false; 244 int mWindowAttributesChangesFlag = 0; 245 246 // These can be accessed by any thread, must be protected with a lock. 247 // Surface can never be reassigned or cleared (use Surface.clear()). 248 private final Surface mSurface = new Surface(); 249 250 boolean mAdded; 251 boolean mAddedTouchMode; 252 253 final CompatibilityInfoHolder mCompatibilityInfo; 254 255 // These are accessed by multiple threads. 256 final Rect mWinFrame; // frame given by window manager. 257 258 final Rect mPendingVisibleInsets = new Rect(); 259 final Rect mPendingContentInsets = new Rect(); 260 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 261 = new ViewTreeObserver.InternalInsetsInfo(); 262 263 final Rect mFitSystemWindowsInsets = new Rect(); 264 265 final Configuration mLastConfiguration = new Configuration(); 266 final Configuration mPendingConfiguration = new Configuration(); 267 268 boolean mScrollMayChange; 269 int mSoftInputMode; 270 View mLastScrolledFocus; 271 int mScrollY; 272 int mCurScrollY; 273 Scroller mScroller; 274 HardwareLayer mResizeBuffer; 275 long mResizeBufferStartTime; 276 int mResizeBufferDuration; 277 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 278 private ArrayList<LayoutTransition> mPendingTransitions; 279 280 final ViewConfiguration mViewConfiguration; 281 282 /* Drag/drop */ 283 ClipDescription mDragDescription; 284 View mCurrentDragView; 285 volatile Object mLocalDragState; 286 final PointF mDragPoint = new PointF(); 287 final PointF mLastTouchPoint = new PointF(); 288 289 private boolean mProfileRendering; 290 private Thread mRenderProfiler; 291 private volatile boolean mRenderProfilingEnabled; 292 293 // Variables to track frames per second, enabled via DEBUG_FPS flag 294 private long mFpsStartTime = -1; 295 private long mFpsPrevTime = -1; 296 private int mFpsNumFrames; 297 298 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 299 300 /** 301 * see {@link #playSoundEffect(int)} 302 */ 303 AudioManager mAudioManager; 304 305 final AccessibilityManager mAccessibilityManager; 306 307 AccessibilityInteractionController mAccessibilityInteractionController; 308 309 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 310 311 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 312 313 HashSet<View> mTempHashSet; 314 315 private final int mDensity; 316 private final int mNoncompatDensity; 317 318 private int mViewLayoutDirectionInitial; 319 320 /** 321 * Consistency verifier for debugging purposes. 322 */ 323 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 324 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 325 new InputEventConsistencyVerifier(this, 0) : null; 326 327 static final class SystemUiVisibilityInfo { 328 int seq; 329 int globalVisibility; 330 int localValue; 331 int localChanges; 332 } 333 334 public ViewRootImpl(Context context, Display display) { 335 super(); 336 337 if (MEASURE_LATENCY) { 338 if (lt == null) { 339 lt = new LatencyTimer(100, 1000); 340 } 341 } 342 343 // Initialize the statics when this class is first instantiated. This is 344 // done here instead of in the static block because Zygote does not 345 // allow the spawning of threads. 346 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 347 mDisplay = display; 348 349 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 350 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 351 352 mThread = Thread.currentThread(); 353 mLocation = new WindowLeaked(null); 354 mLocation.fillInStackTrace(); 355 mWidth = -1; 356 mHeight = -1; 357 mDirty = new Rect(); 358 mTempRect = new Rect(); 359 mVisRect = new Rect(); 360 mWinFrame = new Rect(); 361 mWindow = new W(this); 362 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 363 mInputMethodCallback = new InputMethodCallback(this); 364 mViewVisibility = View.GONE; 365 mTransparentRegion = new Region(); 366 mPreviousTransparentRegion = new Region(); 367 mFirst = true; // true for the first time the view is added 368 mAdded = false; 369 mAccessibilityManager = AccessibilityManager.getInstance(context); 370 mAccessibilityInteractionConnectionManager = 371 new AccessibilityInteractionConnectionManager(); 372 mAccessibilityManager.addAccessibilityStateChangeListener( 373 mAccessibilityInteractionConnectionManager); 374 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 375 mViewConfiguration = ViewConfiguration.get(context); 376 mDensity = context.getResources().getDisplayMetrics().densityDpi; 377 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 378 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 379 mProfileRendering = Boolean.parseBoolean( 380 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 381 mChoreographer = Choreographer.getInstance(); 382 383 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 384 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 385 loadSystemProperties(); 386 } 387 388 /** 389 * @return True if the application requests the use of a separate render thread, 390 * false otherwise 391 */ 392 private static boolean isRenderThreadRequested(Context context) { 393 if (USE_RENDER_THREAD) { 394 synchronized (sRenderThreadQueryLock) { 395 if (!sRenderThreadQueried) { 396 final PackageManager packageManager = context.getPackageManager(); 397 final String packageName = context.getApplicationInfo().packageName; 398 try { 399 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 400 PackageManager.GET_META_DATA); 401 if (applicationInfo.metaData != null) { 402 sUseRenderThread = applicationInfo.metaData.getBoolean( 403 "android.graphics.renderThread", false); 404 } 405 } catch (PackageManager.NameNotFoundException e) { 406 } finally { 407 sRenderThreadQueried = true; 408 } 409 } 410 return sUseRenderThread; 411 } 412 } else { 413 return false; 414 } 415 } 416 417 public static void addFirstDrawHandler(Runnable callback) { 418 synchronized (sFirstDrawHandlers) { 419 if (!sFirstDrawComplete) { 420 sFirstDrawHandlers.add(callback); 421 } 422 } 423 } 424 425 public static void addConfigCallback(ComponentCallbacks callback) { 426 synchronized (sConfigCallbacks) { 427 sConfigCallbacks.add(callback); 428 } 429 } 430 431 // FIXME for perf testing only 432 private boolean mProfile = false; 433 434 /** 435 * Call this to profile the next traversal call. 436 * FIXME for perf testing only. Remove eventually 437 */ 438 public void profile() { 439 mProfile = true; 440 } 441 442 /** 443 * Indicates whether we are in touch mode. Calling this method triggers an IPC 444 * call and should be avoided whenever possible. 445 * 446 * @return True, if the device is in touch mode, false otherwise. 447 * 448 * @hide 449 */ 450 static boolean isInTouchMode() { 451 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 452 if (windowSession != null) { 453 try { 454 return windowSession.getInTouchMode(); 455 } catch (RemoteException e) { 456 } 457 } 458 return false; 459 } 460 461 /** 462 * We have one child 463 */ 464 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 465 synchronized (this) { 466 if (mView == null) { 467 mView = view; 468 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 469 mFallbackEventHandler.setView(view); 470 mWindowAttributes.copyFrom(attrs); 471 attrs = mWindowAttributes; 472 // Keep track of the actual window flags supplied by the client. 473 mClientWindowLayoutFlags = attrs.flags; 474 475 setAccessibilityFocus(null, null); 476 477 if (view instanceof RootViewSurfaceTaker) { 478 mSurfaceHolderCallback = 479 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 480 if (mSurfaceHolderCallback != null) { 481 mSurfaceHolder = new TakenSurfaceHolder(); 482 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 483 } 484 } 485 486 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 487 mTranslator = compatibilityInfo.getTranslator(); 488 489 // If the application owns the surface, don't enable hardware acceleration 490 if (mSurfaceHolder == null) { 491 enableHardwareAcceleration(mView.getContext(), attrs); 492 } 493 494 boolean restore = false; 495 if (mTranslator != null) { 496 mSurface.setCompatibilityTranslator(mTranslator); 497 restore = true; 498 attrs.backup(); 499 mTranslator.translateWindowLayout(attrs); 500 } 501 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 502 503 if (!compatibilityInfo.supportsScreen()) { 504 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 505 mLastInCompatMode = true; 506 } 507 508 mSoftInputMode = attrs.softInputMode; 509 mWindowAttributesChanged = true; 510 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 511 mAttachInfo.mRootView = view; 512 mAttachInfo.mScalingRequired = mTranslator != null; 513 mAttachInfo.mApplicationScale = 514 mTranslator == null ? 1.0f : mTranslator.applicationScale; 515 if (panelParentView != null) { 516 mAttachInfo.mPanelParentWindowToken 517 = panelParentView.getApplicationWindowToken(); 518 } 519 mAdded = true; 520 int res; /* = WindowManagerImpl.ADD_OKAY; */ 521 522 // Schedule the first layout -before- adding to the window 523 // manager, to make sure we do the relayout before receiving 524 // any other events from the system. 525 requestLayout(); 526 if ((mWindowAttributes.inputFeatures 527 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 528 mInputChannel = new InputChannel(); 529 } 530 try { 531 mOrigWindowType = mWindowAttributes.type; 532 mAttachInfo.mRecomputeGlobalAttributes = true; 533 collectViewAttributes(); 534 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 535 getHostVisibility(), mDisplay.getDisplayId(), 536 mAttachInfo.mContentInsets, mInputChannel); 537 } catch (RemoteException e) { 538 mAdded = false; 539 mView = null; 540 mAttachInfo.mRootView = null; 541 mInputChannel = null; 542 mFallbackEventHandler.setView(null); 543 unscheduleTraversals(); 544 setAccessibilityFocus(null, null); 545 throw new RuntimeException("Adding window failed", e); 546 } finally { 547 if (restore) { 548 attrs.restore(); 549 } 550 } 551 552 if (mTranslator != null) { 553 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 554 } 555 mPendingContentInsets.set(mAttachInfo.mContentInsets); 556 mPendingVisibleInsets.set(0, 0, 0, 0); 557 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 558 if (res < WindowManagerGlobal.ADD_OKAY) { 559 mAttachInfo.mRootView = null; 560 mAdded = false; 561 mFallbackEventHandler.setView(null); 562 unscheduleTraversals(); 563 setAccessibilityFocus(null, null); 564 switch (res) { 565 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 566 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 567 throw new WindowManager.BadTokenException( 568 "Unable to add window -- token " + attrs.token 569 + " is not valid; is your activity running?"); 570 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 571 throw new WindowManager.BadTokenException( 572 "Unable to add window -- token " + attrs.token 573 + " is not for an application"); 574 case WindowManagerGlobal.ADD_APP_EXITING: 575 throw new WindowManager.BadTokenException( 576 "Unable to add window -- app for token " + attrs.token 577 + " is exiting"); 578 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 579 throw new WindowManager.BadTokenException( 580 "Unable to add window -- window " + mWindow 581 + " has already been added"); 582 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 583 // Silently ignore -- we would have just removed it 584 // right away, anyway. 585 return; 586 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 587 throw new WindowManager.BadTokenException( 588 "Unable to add window " + mWindow + 589 " -- another window of this type already exists"); 590 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 591 throw new WindowManager.BadTokenException( 592 "Unable to add window " + mWindow + 593 " -- permission denied for this window type"); 594 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 595 throw new WindowManager.InvalidDisplayException( 596 "Unable to add window " + mWindow + 597 " -- the specified display can not be found"); 598 } 599 throw new RuntimeException( 600 "Unable to add window -- unknown error code " + res); 601 } 602 603 if (view instanceof RootViewSurfaceTaker) { 604 mInputQueueCallback = 605 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 606 } 607 if (mInputChannel != null) { 608 if (mInputQueueCallback != null) { 609 mInputQueue = new InputQueue(mInputChannel); 610 mInputQueueCallback.onInputQueueCreated(mInputQueue); 611 } else { 612 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 613 Looper.myLooper()); 614 } 615 } 616 617 view.assignParent(this); 618 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 619 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 620 621 if (mAccessibilityManager.isEnabled()) { 622 mAccessibilityInteractionConnectionManager.ensureConnection(); 623 } 624 625 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 626 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 627 } 628 } 629 } 630 } 631 632 void destroyHardwareResources() { 633 if (mAttachInfo.mHardwareRenderer != null) { 634 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 635 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 636 } 637 mAttachInfo.mHardwareRenderer.destroy(false); 638 } 639 } 640 641 void terminateHardwareResources() { 642 if (mAttachInfo.mHardwareRenderer != null) { 643 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 644 mAttachInfo.mHardwareRenderer.destroy(false); 645 } 646 } 647 648 void destroyHardwareLayers() { 649 if (mThread != Thread.currentThread()) { 650 if (mAttachInfo.mHardwareRenderer != null && 651 mAttachInfo.mHardwareRenderer.isEnabled()) { 652 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 653 } 654 } else { 655 if (mAttachInfo.mHardwareRenderer != null && 656 mAttachInfo.mHardwareRenderer.isEnabled()) { 657 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 658 } 659 } 660 } 661 662 void pushHardwareLayerUpdate(HardwareLayer layer) { 663 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 664 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 665 } 666 } 667 668 public boolean attachFunctor(int functor) { 669 //noinspection SimplifiableIfStatement 670 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 671 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 672 } 673 return false; 674 } 675 676 public void detachFunctor(int functor) { 677 if (mAttachInfo.mHardwareRenderer != null) { 678 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 679 } 680 } 681 682 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 683 mAttachInfo.mHardwareAccelerated = false; 684 mAttachInfo.mHardwareAccelerationRequested = false; 685 686 // Don't enable hardware acceleration when the application is in compatibility mode 687 if (mTranslator != null) return; 688 689 // Try to enable hardware acceleration if requested 690 final boolean hardwareAccelerated = 691 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 692 693 if (hardwareAccelerated) { 694 if (!HardwareRenderer.isAvailable()) { 695 return; 696 } 697 698 // Persistent processes (including the system) should not do 699 // accelerated rendering on low-end devices. In that case, 700 // sRendererDisabled will be set. In addition, the system process 701 // itself should never do accelerated rendering. In that case, both 702 // sRendererDisabled and sSystemRendererDisabled are set. When 703 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 704 // can be used by code on the system process to escape that and enable 705 // HW accelerated drawing. (This is basically for the lock screen.) 706 707 final boolean fakeHwAccelerated = (attrs.privateFlags & 708 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 709 final boolean forceHwAccelerated = (attrs.privateFlags & 710 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 711 712 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 713 && forceHwAccelerated)) { 714 // Don't enable hardware acceleration when we're not on the main thread 715 if (!HardwareRenderer.sSystemRendererDisabled && 716 Looper.getMainLooper() != Looper.myLooper()) { 717 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 718 + "acceleration outside of the main thread, aborting"); 719 return; 720 } 721 722 final boolean renderThread = isRenderThreadRequested(context); 723 if (renderThread) { 724 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 725 } 726 727 if (mAttachInfo.mHardwareRenderer != null) { 728 mAttachInfo.mHardwareRenderer.destroy(true); 729 } 730 731 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 732 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 733 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 734 = mAttachInfo.mHardwareRenderer != null; 735 736 } else if (fakeHwAccelerated) { 737 // The window had wanted to use hardware acceleration, but this 738 // is not allowed in its process. By setting this flag, it can 739 // still render as if it was accelerated. This is basically for 740 // the preview windows the window manager shows for launching 741 // applications, so they will look more like the app being launched. 742 mAttachInfo.mHardwareAccelerationRequested = true; 743 } 744 } 745 } 746 747 public View getView() { 748 return mView; 749 } 750 751 final WindowLeaked getLocation() { 752 return mLocation; 753 } 754 755 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 756 synchronized (this) { 757 int oldSoftInputMode = mWindowAttributes.softInputMode; 758 // Keep track of the actual window flags supplied by the client. 759 mClientWindowLayoutFlags = attrs.flags; 760 // preserve compatible window flag if exists. 761 int compatibleWindowFlag = 762 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 763 // transfer over system UI visibility values as they carry current state. 764 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 765 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 766 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 767 mWindowAttributes.flags |= compatibleWindowFlag; 768 769 applyKeepScreenOnFlag(mWindowAttributes); 770 771 if (newView) { 772 mSoftInputMode = attrs.softInputMode; 773 requestLayout(); 774 } 775 // Don't lose the mode we last auto-computed. 776 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 777 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 778 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 779 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 780 | (oldSoftInputMode 781 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 782 } 783 mWindowAttributesChanged = true; 784 scheduleTraversals(); 785 } 786 } 787 788 void handleAppVisibility(boolean visible) { 789 if (mAppVisible != visible) { 790 mAppVisible = visible; 791 scheduleTraversals(); 792 } 793 } 794 795 void handleGetNewSurface() { 796 mNewSurfaceNeeded = true; 797 mFullRedrawNeeded = true; 798 scheduleTraversals(); 799 } 800 801 void handleScreenStateChange(boolean on) { 802 if (on != mAttachInfo.mScreenOn) { 803 mAttachInfo.mScreenOn = on; 804 if (mView != null) { 805 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 806 } 807 if (on) { 808 mFullRedrawNeeded = true; 809 scheduleTraversals(); 810 } 811 } 812 } 813 814 @Override 815 public void requestFitSystemWindows() { 816 checkThread(); 817 mFitSystemWindowsRequested = true; 818 scheduleTraversals(); 819 } 820 821 @Override 822 public void requestLayout() { 823 checkThread(); 824 mLayoutRequested = true; 825 scheduleTraversals(); 826 } 827 828 @Override 829 public boolean isLayoutRequested() { 830 return mLayoutRequested; 831 } 832 833 void invalidate() { 834 mDirty.set(0, 0, mWidth, mHeight); 835 scheduleTraversals(); 836 } 837 838 void invalidateWorld(View view) { 839 view.invalidate(); 840 if (view instanceof ViewGroup) { 841 ViewGroup parent = (ViewGroup) view; 842 for (int i = 0; i < parent.getChildCount(); i++) { 843 invalidateWorld(parent.getChildAt(i)); 844 } 845 } 846 } 847 848 @Override 849 public void invalidateChild(View child, Rect dirty) { 850 invalidateChildInParent(null, dirty); 851 } 852 853 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 854 checkThread(); 855 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 856 857 if (dirty == null) { 858 invalidate(); 859 return null; 860 } else if (dirty.isEmpty() && !mIsAnimating) { 861 return null; 862 } 863 864 if (mCurScrollY != 0 || mTranslator != null) { 865 mTempRect.set(dirty); 866 dirty = mTempRect; 867 if (mCurScrollY != 0) { 868 dirty.offset(0, -mCurScrollY); 869 } 870 if (mTranslator != null) { 871 mTranslator.translateRectInAppWindowToScreen(dirty); 872 } 873 if (mAttachInfo.mScalingRequired) { 874 dirty.inset(-1, -1); 875 } 876 } 877 878 final Rect localDirty = mDirty; 879 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 880 mAttachInfo.mSetIgnoreDirtyState = true; 881 mAttachInfo.mIgnoreDirtyState = true; 882 } 883 884 // Add the new dirty rect to the current one 885 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 886 // Intersect with the bounds of the window to skip 887 // updates that lie outside of the visible region 888 final float appScale = mAttachInfo.mApplicationScale; 889 final boolean intersected = localDirty.intersect(0, 0, 890 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 891 if (!intersected) { 892 localDirty.setEmpty(); 893 } 894 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 895 scheduleTraversals(); 896 } 897 898 return null; 899 } 900 901 void setStopped(boolean stopped) { 902 if (mStopped != stopped) { 903 mStopped = stopped; 904 if (!stopped) { 905 scheduleTraversals(); 906 } 907 } 908 } 909 910 public ViewParent getParent() { 911 return null; 912 } 913 914 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 915 if (child != mView) { 916 throw new RuntimeException("child is not mine, honest!"); 917 } 918 // Note: don't apply scroll offset, because we want to know its 919 // visibility in the virtual canvas being given to the view hierarchy. 920 return r.intersect(0, 0, mWidth, mHeight); 921 } 922 923 public void bringChildToFront(View child) { 924 } 925 926 int getHostVisibility() { 927 return mAppVisible ? mView.getVisibility() : View.GONE; 928 } 929 930 void disposeResizeBuffer() { 931 if (mResizeBuffer != null) { 932 mResizeBuffer.destroy(); 933 mResizeBuffer = null; 934 } 935 } 936 937 /** 938 * Add LayoutTransition to the list of transitions to be started in the next traversal. 939 * This list will be cleared after the transitions on the list are start()'ed. These 940 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 941 * happens during the layout phase of traversal, which we want to complete before any of the 942 * animations are started (because those animations may side-effect properties that layout 943 * depends upon, like the bounding rectangles of the affected views). So we add the transition 944 * to the list and it is started just prior to starting the drawing phase of traversal. 945 * 946 * @param transition The LayoutTransition to be started on the next traversal. 947 * 948 * @hide 949 */ 950 public void requestTransitionStart(LayoutTransition transition) { 951 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 952 if (mPendingTransitions == null) { 953 mPendingTransitions = new ArrayList<LayoutTransition>(); 954 } 955 mPendingTransitions.add(transition); 956 } 957 } 958 959 void scheduleTraversals() { 960 if (!mTraversalScheduled) { 961 mTraversalScheduled = true; 962 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 963 mChoreographer.postCallback( 964 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 965 scheduleConsumeBatchedInput(); 966 } 967 } 968 969 void unscheduleTraversals() { 970 if (mTraversalScheduled) { 971 mTraversalScheduled = false; 972 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 973 mChoreographer.removeCallbacks( 974 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 975 } 976 } 977 978 void doTraversal() { 979 if (mTraversalScheduled) { 980 mTraversalScheduled = false; 981 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 982 983 if (mProfile) { 984 Debug.startMethodTracing("ViewAncestor"); 985 } 986 987 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 988 try { 989 performTraversals(); 990 } finally { 991 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 992 } 993 994 if (mProfile) { 995 Debug.stopMethodTracing(); 996 mProfile = false; 997 } 998 } 999 } 1000 1001 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1002 // Update window's global keep screen on flag: if a view has requested 1003 // that the screen be kept on, then it is always set; otherwise, it is 1004 // set to whatever the client last requested for the global state. 1005 if (mAttachInfo.mKeepScreenOn) { 1006 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1007 } else { 1008 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1009 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1010 } 1011 } 1012 1013 private boolean collectViewAttributes() { 1014 final View.AttachInfo attachInfo = mAttachInfo; 1015 if (attachInfo.mRecomputeGlobalAttributes) { 1016 //Log.i(TAG, "Computing view hierarchy attributes!"); 1017 attachInfo.mRecomputeGlobalAttributes = false; 1018 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1019 attachInfo.mKeepScreenOn = false; 1020 attachInfo.mSystemUiVisibility = 0; 1021 attachInfo.mHasSystemUiListeners = false; 1022 mView.dispatchCollectViewAttributes(attachInfo, 0); 1023 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1024 WindowManager.LayoutParams params = mWindowAttributes; 1025 if (attachInfo.mKeepScreenOn != oldScreenOn 1026 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1027 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1028 applyKeepScreenOnFlag(params); 1029 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1030 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1031 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1032 return true; 1033 } 1034 } 1035 return false; 1036 } 1037 1038 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1039 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1040 int childWidthMeasureSpec; 1041 int childHeightMeasureSpec; 1042 boolean windowSizeMayChange = false; 1043 1044 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1045 "Measuring " + host + " in display " + desiredWindowWidth 1046 + "x" + desiredWindowHeight + "..."); 1047 1048 boolean goodMeasure = false; 1049 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1050 // On large screens, we don't want to allow dialogs to just 1051 // stretch to fill the entire width of the screen to display 1052 // one line of text. First try doing the layout at a smaller 1053 // size to see if it will fit. 1054 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1055 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1056 int baseSize = 0; 1057 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1058 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1059 } 1060 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1061 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1062 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1063 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1064 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1065 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1066 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1067 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1068 goodMeasure = true; 1069 } else { 1070 // Didn't fit in that size... try expanding a bit. 1071 baseSize = (baseSize+desiredWindowWidth)/2; 1072 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1073 + baseSize); 1074 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1075 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1076 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1077 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1078 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1079 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1080 goodMeasure = true; 1081 } 1082 } 1083 } 1084 } 1085 1086 if (!goodMeasure) { 1087 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1088 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1089 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1090 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1091 windowSizeMayChange = true; 1092 } 1093 } 1094 1095 if (DBG) { 1096 System.out.println("======================================"); 1097 System.out.println("performTraversals -- after measure"); 1098 host.debug(); 1099 } 1100 1101 return windowSizeMayChange; 1102 } 1103 1104 private void performTraversals() { 1105 // cache mView since it is used so much below... 1106 final View host = mView; 1107 1108 if (DBG) { 1109 System.out.println("======================================"); 1110 System.out.println("performTraversals"); 1111 host.debug(); 1112 } 1113 1114 if (host == null || !mAdded) 1115 return; 1116 1117 mIsInTraversal = true; 1118 mWillDrawSoon = true; 1119 boolean windowSizeMayChange = false; 1120 boolean newSurface = false; 1121 boolean surfaceChanged = false; 1122 WindowManager.LayoutParams lp = mWindowAttributes; 1123 1124 int desiredWindowWidth; 1125 int desiredWindowHeight; 1126 1127 final View.AttachInfo attachInfo = mAttachInfo; 1128 1129 final int viewVisibility = getHostVisibility(); 1130 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1131 || mNewSurfaceNeeded; 1132 1133 WindowManager.LayoutParams params = null; 1134 if (mWindowAttributesChanged) { 1135 mWindowAttributesChanged = false; 1136 surfaceChanged = true; 1137 params = lp; 1138 } 1139 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1140 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1141 params = lp; 1142 mFullRedrawNeeded = true; 1143 mLayoutRequested = true; 1144 if (mLastInCompatMode) { 1145 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1146 mLastInCompatMode = false; 1147 } else { 1148 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1149 mLastInCompatMode = true; 1150 } 1151 } 1152 1153 mWindowAttributesChangesFlag = 0; 1154 1155 Rect frame = mWinFrame; 1156 if (mFirst) { 1157 mFullRedrawNeeded = true; 1158 mLayoutRequested = true; 1159 1160 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1161 // NOTE -- system code, won't try to do compat mode. 1162 Point size = new Point(); 1163 mDisplay.getRealSize(size); 1164 desiredWindowWidth = size.x; 1165 desiredWindowHeight = size.y; 1166 } else { 1167 DisplayMetrics packageMetrics = 1168 mView.getContext().getResources().getDisplayMetrics(); 1169 desiredWindowWidth = packageMetrics.widthPixels; 1170 desiredWindowHeight = packageMetrics.heightPixels; 1171 } 1172 1173 // For the very first time, tell the view hierarchy that it 1174 // is attached to the window. Note that at this point the surface 1175 // object is not initialized to its backing store, but soon it 1176 // will be (assuming the window is visible). 1177 attachInfo.mSurface = mSurface; 1178 // We used to use the following condition to choose 32 bits drawing caches: 1179 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1180 // However, windows are now always 32 bits by default, so choose 32 bits 1181 attachInfo.mUse32BitDrawingCache = true; 1182 attachInfo.mHasWindowFocus = false; 1183 attachInfo.mWindowVisibility = viewVisibility; 1184 attachInfo.mRecomputeGlobalAttributes = false; 1185 viewVisibilityChanged = false; 1186 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1187 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1188 // Set the layout direction if it has not been set before (inherit is the default) 1189 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1190 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1191 } 1192 host.dispatchAttachedToWindow(attachInfo, 0); 1193 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1194 host.fitSystemWindows(mFitSystemWindowsInsets); 1195 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1196 1197 } else { 1198 desiredWindowWidth = frame.width(); 1199 desiredWindowHeight = frame.height(); 1200 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1201 if (DEBUG_ORIENTATION) Log.v(TAG, 1202 "View " + host + " resized to: " + frame); 1203 mFullRedrawNeeded = true; 1204 mLayoutRequested = true; 1205 windowSizeMayChange = true; 1206 } 1207 } 1208 1209 if (viewVisibilityChanged) { 1210 attachInfo.mWindowVisibility = viewVisibility; 1211 host.dispatchWindowVisibilityChanged(viewVisibility); 1212 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1213 destroyHardwareResources(); 1214 } 1215 if (viewVisibility == View.GONE) { 1216 // After making a window gone, we will count it as being 1217 // shown for the first time the next time it gets focus. 1218 mHasHadWindowFocus = false; 1219 } 1220 } 1221 1222 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1223 getRunQueue().executeActions(attachInfo.mHandler); 1224 1225 boolean insetsChanged = false; 1226 1227 boolean layoutRequested = mLayoutRequested && !mStopped; 1228 if (layoutRequested) { 1229 1230 final Resources res = mView.getContext().getResources(); 1231 1232 if (mFirst) { 1233 // make sure touch mode code executes by setting cached value 1234 // to opposite of the added touch mode. 1235 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1236 ensureTouchModeLocally(mAddedTouchMode); 1237 } else { 1238 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1239 insetsChanged = true; 1240 } 1241 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1242 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1243 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1244 + mAttachInfo.mVisibleInsets); 1245 } 1246 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1247 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1248 windowSizeMayChange = true; 1249 1250 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1251 // NOTE -- system code, won't try to do compat mode. 1252 Point size = new Point(); 1253 mDisplay.getRealSize(size); 1254 desiredWindowWidth = size.x; 1255 desiredWindowHeight = size.y; 1256 } else { 1257 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1258 desiredWindowWidth = packageMetrics.widthPixels; 1259 desiredWindowHeight = packageMetrics.heightPixels; 1260 } 1261 } 1262 } 1263 1264 // Ask host how big it wants to be 1265 windowSizeMayChange |= measureHierarchy(host, lp, res, 1266 desiredWindowWidth, desiredWindowHeight); 1267 } 1268 1269 if (collectViewAttributes()) { 1270 params = lp; 1271 } 1272 if (attachInfo.mForceReportNewAttributes) { 1273 attachInfo.mForceReportNewAttributes = false; 1274 params = lp; 1275 } 1276 1277 if (mFirst || attachInfo.mViewVisibilityChanged) { 1278 attachInfo.mViewVisibilityChanged = false; 1279 int resizeMode = mSoftInputMode & 1280 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1281 // If we are in auto resize mode, then we need to determine 1282 // what mode to use now. 1283 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1284 final int N = attachInfo.mScrollContainers.size(); 1285 for (int i=0; i<N; i++) { 1286 if (attachInfo.mScrollContainers.get(i).isShown()) { 1287 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1288 } 1289 } 1290 if (resizeMode == 0) { 1291 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1292 } 1293 if ((lp.softInputMode & 1294 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1295 lp.softInputMode = (lp.softInputMode & 1296 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1297 resizeMode; 1298 params = lp; 1299 } 1300 } 1301 } 1302 1303 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1304 if (!PixelFormat.formatHasAlpha(params.format)) { 1305 params.format = PixelFormat.TRANSLUCENT; 1306 } 1307 } 1308 1309 if (mFitSystemWindowsRequested) { 1310 mFitSystemWindowsRequested = false; 1311 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1312 host.fitSystemWindows(mFitSystemWindowsInsets); 1313 if (mLayoutRequested) { 1314 // Short-circuit catching a new layout request here, so 1315 // we don't need to go through two layout passes when things 1316 // change due to fitting system windows, which can happen a lot. 1317 windowSizeMayChange |= measureHierarchy(host, lp, 1318 mView.getContext().getResources(), 1319 desiredWindowWidth, desiredWindowHeight); 1320 } 1321 } 1322 1323 if (layoutRequested) { 1324 // Clear this now, so that if anything requests a layout in the 1325 // rest of this function we will catch it and re-run a full 1326 // layout pass. 1327 mLayoutRequested = false; 1328 } 1329 1330 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1331 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1332 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1333 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1334 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1335 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1336 1337 final boolean computesInternalInsets = 1338 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1339 1340 boolean insetsPending = false; 1341 int relayoutResult = 0; 1342 1343 if (mFirst || windowShouldResize || insetsChanged || 1344 viewVisibilityChanged || params != null) { 1345 1346 if (viewVisibility == View.VISIBLE) { 1347 // If this window is giving internal insets to the window 1348 // manager, and it is being added or changing its visibility, 1349 // then we want to first give the window manager "fake" 1350 // insets to cause it to effectively ignore the content of 1351 // the window during layout. This avoids it briefly causing 1352 // other windows to resize/move based on the raw frame of the 1353 // window, waiting until we can finish laying out this window 1354 // and get back to the window manager with the ultimately 1355 // computed insets. 1356 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1357 } 1358 1359 if (mSurfaceHolder != null) { 1360 mSurfaceHolder.mSurfaceLock.lock(); 1361 mDrawingAllowed = true; 1362 } 1363 1364 boolean hwInitialized = false; 1365 boolean contentInsetsChanged = false; 1366 boolean visibleInsetsChanged; 1367 boolean hadSurface = mSurface.isValid(); 1368 1369 try { 1370 if (DEBUG_LAYOUT) { 1371 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1372 host.getMeasuredHeight() + ", params=" + params); 1373 } 1374 1375 final int surfaceGenerationId = mSurface.getGenerationId(); 1376 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1377 1378 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1379 + " content=" + mPendingContentInsets.toShortString() 1380 + " visible=" + mPendingVisibleInsets.toShortString() 1381 + " surface=" + mSurface); 1382 1383 if (mPendingConfiguration.seq != 0) { 1384 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1385 + mPendingConfiguration); 1386 updateConfiguration(mPendingConfiguration, !mFirst); 1387 mPendingConfiguration.seq = 0; 1388 } 1389 1390 contentInsetsChanged = !mPendingContentInsets.equals( 1391 mAttachInfo.mContentInsets); 1392 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1393 mAttachInfo.mVisibleInsets); 1394 if (contentInsetsChanged) { 1395 if (mWidth > 0 && mHeight > 0 && lp != null && 1396 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1397 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1398 mSurface != null && mSurface.isValid() && 1399 !mAttachInfo.mTurnOffWindowResizeAnim && 1400 mAttachInfo.mHardwareRenderer != null && 1401 mAttachInfo.mHardwareRenderer.isEnabled() && 1402 mAttachInfo.mHardwareRenderer.validate() && 1403 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1404 1405 disposeResizeBuffer(); 1406 1407 boolean completed = false; 1408 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1409 HardwareCanvas layerCanvas = null; 1410 try { 1411 if (mResizeBuffer == null) { 1412 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1413 mWidth, mHeight, false); 1414 } else if (mResizeBuffer.getWidth() != mWidth || 1415 mResizeBuffer.getHeight() != mHeight) { 1416 mResizeBuffer.resize(mWidth, mHeight); 1417 } 1418 // TODO: should handle create/resize failure 1419 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1420 layerCanvas.setViewport(mWidth, mHeight); 1421 layerCanvas.onPreDraw(null); 1422 final int restoreCount = layerCanvas.save(); 1423 1424 int yoff; 1425 final boolean scrolling = mScroller != null 1426 && mScroller.computeScrollOffset(); 1427 if (scrolling) { 1428 yoff = mScroller.getCurrY(); 1429 mScroller.abortAnimation(); 1430 } else { 1431 yoff = mScrollY; 1432 } 1433 1434 layerCanvas.translate(0, -yoff); 1435 if (mTranslator != null) { 1436 mTranslator.translateCanvas(layerCanvas); 1437 } 1438 1439 DisplayList displayList = mView.mDisplayList; 1440 if (displayList != null) { 1441 layerCanvas.drawDisplayList(displayList, null, 1442 DisplayList.FLAG_CLIP_CHILDREN); 1443 } else { 1444 mView.draw(layerCanvas); 1445 } 1446 1447 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1448 1449 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1450 mResizeBufferDuration = mView.getResources().getInteger( 1451 com.android.internal.R.integer.config_mediumAnimTime); 1452 completed = true; 1453 1454 layerCanvas.restoreToCount(restoreCount); 1455 } catch (OutOfMemoryError e) { 1456 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1457 } finally { 1458 if (layerCanvas != null) { 1459 layerCanvas.onPostDraw(); 1460 } 1461 if (mResizeBuffer != null) { 1462 mResizeBuffer.end(hwRendererCanvas); 1463 if (!completed) { 1464 mResizeBuffer.destroy(); 1465 mResizeBuffer = null; 1466 } 1467 } 1468 } 1469 } 1470 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1471 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1472 + mAttachInfo.mContentInsets); 1473 } 1474 if (contentInsetsChanged || mLastSystemUiVisibility != 1475 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1476 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1477 mFitSystemWindowsRequested = false; 1478 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1479 host.fitSystemWindows(mFitSystemWindowsInsets); 1480 } 1481 if (visibleInsetsChanged) { 1482 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1483 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1484 + mAttachInfo.mVisibleInsets); 1485 } 1486 1487 if (!hadSurface) { 1488 if (mSurface.isValid()) { 1489 // If we are creating a new surface, then we need to 1490 // completely redraw it. Also, when we get to the 1491 // point of drawing it we will hold off and schedule 1492 // a new traversal instead. This is so we can tell the 1493 // window manager about all of the windows being displayed 1494 // before actually drawing them, so it can display then 1495 // all at once. 1496 newSurface = true; 1497 mFullRedrawNeeded = true; 1498 mPreviousTransparentRegion.setEmpty(); 1499 1500 if (mAttachInfo.mHardwareRenderer != null) { 1501 try { 1502 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1503 mHolder.getSurface()); 1504 } catch (Surface.OutOfResourcesException e) { 1505 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1506 try { 1507 if (!mWindowSession.outOfMemory(mWindow) && 1508 Process.myUid() != Process.SYSTEM_UID) { 1509 Slog.w(TAG, "No processes killed for memory; killing self"); 1510 Process.killProcess(Process.myPid()); 1511 } 1512 } catch (RemoteException ex) { 1513 } 1514 mLayoutRequested = true; // ask wm for a new surface next time. 1515 return; 1516 } 1517 } 1518 } 1519 } else if (!mSurface.isValid()) { 1520 // If the surface has been removed, then reset the scroll 1521 // positions. 1522 mLastScrolledFocus = null; 1523 mScrollY = mCurScrollY = 0; 1524 if (mScroller != null) { 1525 mScroller.abortAnimation(); 1526 } 1527 disposeResizeBuffer(); 1528 // Our surface is gone 1529 if (mAttachInfo.mHardwareRenderer != null && 1530 mAttachInfo.mHardwareRenderer.isEnabled()) { 1531 mAttachInfo.mHardwareRenderer.destroy(true); 1532 } 1533 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1534 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1535 mFullRedrawNeeded = true; 1536 try { 1537 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1538 } catch (Surface.OutOfResourcesException e) { 1539 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1540 try { 1541 if (!mWindowSession.outOfMemory(mWindow)) { 1542 Slog.w(TAG, "No processes killed for memory; killing self"); 1543 Process.killProcess(Process.myPid()); 1544 } 1545 } catch (RemoteException ex) { 1546 } 1547 mLayoutRequested = true; // ask wm for a new surface next time. 1548 return; 1549 } 1550 } 1551 } catch (RemoteException e) { 1552 } 1553 1554 if (DEBUG_ORIENTATION) Log.v( 1555 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1556 1557 attachInfo.mWindowLeft = frame.left; 1558 attachInfo.mWindowTop = frame.top; 1559 1560 // !!FIXME!! This next section handles the case where we did not get the 1561 // window size we asked for. We should avoid this by getting a maximum size from 1562 // the window session beforehand. 1563 if (mWidth != frame.width() || mHeight != frame.height()) { 1564 mWidth = frame.width(); 1565 mHeight = frame.height(); 1566 } 1567 1568 if (mSurfaceHolder != null) { 1569 // The app owns the surface; tell it about what is going on. 1570 if (mSurface.isValid()) { 1571 // XXX .copyFrom() doesn't work! 1572 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1573 mSurfaceHolder.mSurface = mSurface; 1574 } 1575 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1576 mSurfaceHolder.mSurfaceLock.unlock(); 1577 if (mSurface.isValid()) { 1578 if (!hadSurface) { 1579 mSurfaceHolder.ungetCallbacks(); 1580 1581 mIsCreating = true; 1582 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1583 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1584 if (callbacks != null) { 1585 for (SurfaceHolder.Callback c : callbacks) { 1586 c.surfaceCreated(mSurfaceHolder); 1587 } 1588 } 1589 surfaceChanged = true; 1590 } 1591 if (surfaceChanged) { 1592 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1593 lp.format, mWidth, mHeight); 1594 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1595 if (callbacks != null) { 1596 for (SurfaceHolder.Callback c : callbacks) { 1597 c.surfaceChanged(mSurfaceHolder, lp.format, 1598 mWidth, mHeight); 1599 } 1600 } 1601 } 1602 mIsCreating = false; 1603 } else if (hadSurface) { 1604 mSurfaceHolder.ungetCallbacks(); 1605 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1606 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1607 if (callbacks != null) { 1608 for (SurfaceHolder.Callback c : callbacks) { 1609 c.surfaceDestroyed(mSurfaceHolder); 1610 } 1611 } 1612 mSurfaceHolder.mSurfaceLock.lock(); 1613 try { 1614 mSurfaceHolder.mSurface = new Surface(); 1615 } finally { 1616 mSurfaceHolder.mSurfaceLock.unlock(); 1617 } 1618 } 1619 } 1620 1621 if (mAttachInfo.mHardwareRenderer != null && 1622 mAttachInfo.mHardwareRenderer.isEnabled()) { 1623 if (hwInitialized || windowShouldResize || 1624 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1625 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1626 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1627 if (!hwInitialized) { 1628 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1629 mFullRedrawNeeded = true; 1630 } 1631 } 1632 } 1633 1634 if (!mStopped) { 1635 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1636 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1637 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1638 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1639 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1640 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1641 1642 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1643 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1644 + " mHeight=" + mHeight 1645 + " measuredHeight=" + host.getMeasuredHeight() 1646 + " coveredInsetsChanged=" + contentInsetsChanged); 1647 1648 // Ask host how big it wants to be 1649 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1650 1651 // Implementation of weights from WindowManager.LayoutParams 1652 // We just grow the dimensions as needed and re-measure if 1653 // needs be 1654 int width = host.getMeasuredWidth(); 1655 int height = host.getMeasuredHeight(); 1656 boolean measureAgain = false; 1657 1658 if (lp.horizontalWeight > 0.0f) { 1659 width += (int) ((mWidth - width) * lp.horizontalWeight); 1660 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1661 MeasureSpec.EXACTLY); 1662 measureAgain = true; 1663 } 1664 if (lp.verticalWeight > 0.0f) { 1665 height += (int) ((mHeight - height) * lp.verticalWeight); 1666 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1667 MeasureSpec.EXACTLY); 1668 measureAgain = true; 1669 } 1670 1671 if (measureAgain) { 1672 if (DEBUG_LAYOUT) Log.v(TAG, 1673 "And hey let's measure once more: width=" + width 1674 + " height=" + height); 1675 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1676 } 1677 1678 layoutRequested = true; 1679 } 1680 } 1681 } else { 1682 // Not the first pass and no window/insets/visibility change but the window 1683 // may have moved and we need check that and if so to update the left and right 1684 // in the attach info. We translate only the window frame since on window move 1685 // the window manager tells us only for the new frame but the insets are the 1686 // same and we do not want to translate them more than once. 1687 1688 // TODO: Well, we are checking whether the frame has changed similarly 1689 // to how this is done for the insets. This is however incorrect since 1690 // the insets and the frame are translated. For example, the old frame 1691 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1692 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1693 // true since we are comparing a not translated value to a translated one. 1694 // This scenario is rare but we may want to fix that. 1695 1696 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1697 || attachInfo.mWindowTop != frame.top); 1698 if (windowMoved) { 1699 if (mTranslator != null) { 1700 mTranslator.translateRectInScreenToAppWinFrame(frame); 1701 } 1702 attachInfo.mWindowLeft = frame.left; 1703 attachInfo.mWindowTop = frame.top; 1704 } 1705 } 1706 1707 final boolean didLayout = layoutRequested && !mStopped; 1708 boolean triggerGlobalLayoutListener = didLayout 1709 || attachInfo.mRecomputeGlobalAttributes; 1710 if (didLayout) { 1711 performLayout(); 1712 1713 // By this point all views have been sized and positionned 1714 // We can compute the transparent area 1715 1716 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1717 // start out transparent 1718 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1719 host.getLocationInWindow(mTmpLocation); 1720 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1721 mTmpLocation[0] + host.mRight - host.mLeft, 1722 mTmpLocation[1] + host.mBottom - host.mTop); 1723 1724 host.gatherTransparentRegion(mTransparentRegion); 1725 if (mTranslator != null) { 1726 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1727 } 1728 1729 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1730 mPreviousTransparentRegion.set(mTransparentRegion); 1731 // reconfigure window manager 1732 try { 1733 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1734 } catch (RemoteException e) { 1735 } 1736 } 1737 } 1738 1739 if (DBG) { 1740 System.out.println("======================================"); 1741 System.out.println("performTraversals -- after setFrame"); 1742 host.debug(); 1743 } 1744 } 1745 1746 if (triggerGlobalLayoutListener) { 1747 attachInfo.mRecomputeGlobalAttributes = false; 1748 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1749 1750 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1751 postSendWindowContentChangedCallback(mView); 1752 } 1753 } 1754 1755 if (computesInternalInsets) { 1756 // Clear the original insets. 1757 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1758 insets.reset(); 1759 1760 // Compute new insets in place. 1761 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1762 1763 // Tell the window manager. 1764 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1765 mLastGivenInsets.set(insets); 1766 1767 // Translate insets to screen coordinates if needed. 1768 final Rect contentInsets; 1769 final Rect visibleInsets; 1770 final Region touchableRegion; 1771 if (mTranslator != null) { 1772 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1773 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1774 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1775 } else { 1776 contentInsets = insets.contentInsets; 1777 visibleInsets = insets.visibleInsets; 1778 touchableRegion = insets.touchableRegion; 1779 } 1780 1781 try { 1782 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1783 contentInsets, visibleInsets, touchableRegion); 1784 } catch (RemoteException e) { 1785 } 1786 } 1787 } 1788 1789 boolean skipDraw = false; 1790 1791 if (mFirst) { 1792 // handle first focus request 1793 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1794 + mView.hasFocus()); 1795 if (mView != null) { 1796 if (!mView.hasFocus()) { 1797 mView.requestFocus(View.FOCUS_FORWARD); 1798 mFocusedView = mRealFocusedView = mView.findFocus(); 1799 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1800 + mFocusedView); 1801 } else { 1802 mRealFocusedView = mView.findFocus(); 1803 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1804 + mRealFocusedView); 1805 } 1806 } 1807 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1808 // The first time we relayout the window, if the system is 1809 // doing window animations, we want to hold of on any future 1810 // draws until the animation is done. 1811 mWindowsAnimating = true; 1812 } 1813 } else if (mWindowsAnimating) { 1814 skipDraw = true; 1815 } 1816 1817 mFirst = false; 1818 mWillDrawSoon = false; 1819 mNewSurfaceNeeded = false; 1820 mViewVisibility = viewVisibility; 1821 1822 if (mAttachInfo.mHasWindowFocus) { 1823 final boolean imTarget = WindowManager.LayoutParams 1824 .mayUseInputMethod(mWindowAttributes.flags); 1825 if (imTarget != mLastWasImTarget) { 1826 mLastWasImTarget = imTarget; 1827 InputMethodManager imm = InputMethodManager.peekInstance(); 1828 if (imm != null && imTarget) { 1829 imm.startGettingWindowFocus(mView); 1830 imm.onWindowFocus(mView, mView.findFocus(), 1831 mWindowAttributes.softInputMode, 1832 !mHasHadWindowFocus, mWindowAttributes.flags); 1833 } 1834 } 1835 } 1836 1837 // Remember if we must report the next draw. 1838 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1839 mReportNextDraw = true; 1840 } 1841 1842 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1843 viewVisibility != View.VISIBLE; 1844 1845 if (!cancelDraw && !newSurface) { 1846 if (!skipDraw || mReportNextDraw) { 1847 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1848 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1849 mPendingTransitions.get(i).startChangingAnimations(); 1850 } 1851 mPendingTransitions.clear(); 1852 } 1853 1854 performDraw(); 1855 } 1856 } else { 1857 if (viewVisibility == View.VISIBLE) { 1858 // Try again 1859 scheduleTraversals(); 1860 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1861 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1862 mPendingTransitions.get(i).endChangingAnimations(); 1863 } 1864 mPendingTransitions.clear(); 1865 } 1866 } 1867 1868 mIsInTraversal = false; 1869 } 1870 1871 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1872 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1873 try { 1874 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1875 } finally { 1876 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1877 } 1878 } 1879 1880 private void performLayout() { 1881 mLayoutRequested = false; 1882 mScrollMayChange = true; 1883 1884 final View host = mView; 1885 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1886 Log.v(TAG, "Laying out " + host + " to (" + 1887 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1888 } 1889 1890 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1891 try { 1892 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1893 } finally { 1894 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1895 } 1896 } 1897 1898 public void requestTransparentRegion(View child) { 1899 // the test below should not fail unless someone is messing with us 1900 checkThread(); 1901 if (mView == child) { 1902 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1903 // Need to make sure we re-evaluate the window attributes next 1904 // time around, to ensure the window has the correct format. 1905 mWindowAttributesChanged = true; 1906 mWindowAttributesChangesFlag = 0; 1907 requestLayout(); 1908 } 1909 } 1910 1911 /** 1912 * Figures out the measure spec for the root view in a window based on it's 1913 * layout params. 1914 * 1915 * @param windowSize 1916 * The available width or height of the window 1917 * 1918 * @param rootDimension 1919 * The layout params for one dimension (width or height) of the 1920 * window. 1921 * 1922 * @return The measure spec to use to measure the root view. 1923 */ 1924 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1925 int measureSpec; 1926 switch (rootDimension) { 1927 1928 case ViewGroup.LayoutParams.MATCH_PARENT: 1929 // Window can't resize. Force root view to be windowSize. 1930 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1931 break; 1932 case ViewGroup.LayoutParams.WRAP_CONTENT: 1933 // Window can resize. Set max size for root view. 1934 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1935 break; 1936 default: 1937 // Window wants to be an exact size. Force root view to be that size. 1938 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1939 break; 1940 } 1941 return measureSpec; 1942 } 1943 1944 int mHardwareYOffset; 1945 int mResizeAlpha; 1946 final Paint mResizePaint = new Paint(); 1947 1948 public void onHardwarePreDraw(HardwareCanvas canvas) { 1949 canvas.translate(0, -mHardwareYOffset); 1950 } 1951 1952 public void onHardwarePostDraw(HardwareCanvas canvas) { 1953 if (mResizeBuffer != null) { 1954 mResizePaint.setAlpha(mResizeAlpha); 1955 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1956 } 1957 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1958 } 1959 1960 /** 1961 * @hide 1962 */ 1963 void outputDisplayList(View view) { 1964 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1965 DisplayList displayList = view.getDisplayList(); 1966 if (displayList != null) { 1967 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1968 } 1969 } 1970 } 1971 1972 /** 1973 * @see #PROPERTY_PROFILE_RENDERING 1974 */ 1975 private void profileRendering(boolean enabled) { 1976 if (mProfileRendering) { 1977 mRenderProfilingEnabled = enabled; 1978 if (mRenderProfiler == null) { 1979 mRenderProfiler = new Thread(new Runnable() { 1980 @Override 1981 public void run() { 1982 Log.d(TAG, "Starting profiling thread"); 1983 while (mRenderProfilingEnabled) { 1984 mAttachInfo.mHandler.post(new Runnable() { 1985 @Override 1986 public void run() { 1987 mDirty.set(0, 0, mWidth, mHeight); 1988 scheduleTraversals(); 1989 } 1990 }); 1991 try { 1992 // TODO: This should use vsync when we get an API 1993 Thread.sleep(15); 1994 } catch (InterruptedException e) { 1995 Log.d(TAG, "Exiting profiling thread"); 1996 } 1997 } 1998 } 1999 }, "Rendering Profiler"); 2000 mRenderProfiler.start(); 2001 } else { 2002 mRenderProfiler.interrupt(); 2003 mRenderProfiler = null; 2004 } 2005 } 2006 } 2007 2008 /** 2009 * Called from draw() when DEBUG_FPS is enabled 2010 */ 2011 private void trackFPS() { 2012 // Tracks frames per second drawn. First value in a series of draws may be bogus 2013 // because it down not account for the intervening idle time 2014 long nowTime = System.currentTimeMillis(); 2015 if (mFpsStartTime < 0) { 2016 mFpsStartTime = mFpsPrevTime = nowTime; 2017 mFpsNumFrames = 0; 2018 } else { 2019 ++mFpsNumFrames; 2020 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2021 long frameTime = nowTime - mFpsPrevTime; 2022 long totalTime = nowTime - mFpsStartTime; 2023 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2024 mFpsPrevTime = nowTime; 2025 if (totalTime > 1000) { 2026 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2027 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2028 mFpsStartTime = nowTime; 2029 mFpsNumFrames = 0; 2030 } 2031 } 2032 } 2033 2034 private void performDraw() { 2035 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2036 return; 2037 } 2038 2039 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2040 mFullRedrawNeeded = false; 2041 2042 mIsDrawing = true; 2043 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2044 try { 2045 draw(fullRedrawNeeded); 2046 } finally { 2047 mIsDrawing = false; 2048 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2049 } 2050 2051 if (mReportNextDraw) { 2052 mReportNextDraw = false; 2053 2054 if (LOCAL_LOGV) { 2055 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2056 } 2057 if (mSurfaceHolder != null && mSurface.isValid()) { 2058 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2059 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2060 if (callbacks != null) { 2061 for (SurfaceHolder.Callback c : callbacks) { 2062 if (c instanceof SurfaceHolder.Callback2) { 2063 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2064 mSurfaceHolder); 2065 } 2066 } 2067 } 2068 } 2069 try { 2070 mWindowSession.finishDrawing(mWindow); 2071 } catch (RemoteException e) { 2072 } 2073 } 2074 } 2075 2076 private void draw(boolean fullRedrawNeeded) { 2077 Surface surface = mSurface; 2078 if (surface == null || !surface.isValid()) { 2079 return; 2080 } 2081 2082 if (DEBUG_FPS) { 2083 trackFPS(); 2084 } 2085 2086 if (!sFirstDrawComplete) { 2087 synchronized (sFirstDrawHandlers) { 2088 sFirstDrawComplete = true; 2089 final int count = sFirstDrawHandlers.size(); 2090 for (int i = 0; i< count; i++) { 2091 mHandler.post(sFirstDrawHandlers.get(i)); 2092 } 2093 } 2094 } 2095 2096 scrollToRectOrFocus(null, false); 2097 2098 final AttachInfo attachInfo = mAttachInfo; 2099 if (attachInfo.mViewScrollChanged) { 2100 attachInfo.mViewScrollChanged = false; 2101 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2102 } 2103 2104 int yoff; 2105 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2106 if (animating) { 2107 yoff = mScroller.getCurrY(); 2108 } else { 2109 yoff = mScrollY; 2110 } 2111 if (mCurScrollY != yoff) { 2112 mCurScrollY = yoff; 2113 fullRedrawNeeded = true; 2114 } 2115 2116 final float appScale = attachInfo.mApplicationScale; 2117 final boolean scalingRequired = attachInfo.mScalingRequired; 2118 2119 int resizeAlpha = 0; 2120 if (mResizeBuffer != null) { 2121 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2122 if (deltaTime < mResizeBufferDuration) { 2123 float amt = deltaTime/(float) mResizeBufferDuration; 2124 amt = mResizeInterpolator.getInterpolation(amt); 2125 animating = true; 2126 resizeAlpha = 255 - (int)(amt*255); 2127 } else { 2128 disposeResizeBuffer(); 2129 } 2130 } 2131 2132 final Rect dirty = mDirty; 2133 if (mSurfaceHolder != null) { 2134 // The app owns the surface, we won't draw. 2135 dirty.setEmpty(); 2136 if (animating) { 2137 if (mScroller != null) { 2138 mScroller.abortAnimation(); 2139 } 2140 disposeResizeBuffer(); 2141 } 2142 return; 2143 } 2144 2145 if (fullRedrawNeeded) { 2146 attachInfo.mIgnoreDirtyState = true; 2147 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2148 } 2149 2150 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2151 Log.v(TAG, "Draw " + mView + "/" 2152 + mWindowAttributes.getTitle() 2153 + ": dirty={" + dirty.left + "," + dirty.top 2154 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2155 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2156 appScale + ", width=" + mWidth + ", height=" + mHeight); 2157 } 2158 2159 attachInfo.mTreeObserver.dispatchOnDraw(); 2160 2161 if (!dirty.isEmpty() || mIsAnimating) { 2162 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2163 // Draw with hardware renderer. 2164 mIsAnimating = false; 2165 mHardwareYOffset = yoff; 2166 mResizeAlpha = resizeAlpha; 2167 2168 mCurrentDirty.set(dirty); 2169 mCurrentDirty.union(mPreviousDirty); 2170 mPreviousDirty.set(dirty); 2171 dirty.setEmpty(); 2172 2173 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2174 animating ? null : mCurrentDirty)) { 2175 mPreviousDirty.set(0, 0, mWidth, mHeight); 2176 } 2177 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2178 return; 2179 } 2180 } 2181 2182 if (animating) { 2183 mFullRedrawNeeded = true; 2184 scheduleTraversals(); 2185 } 2186 } 2187 2188 /** 2189 * @return true if drawing was succesfull, false if an error occurred 2190 */ 2191 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2192 boolean scalingRequired, Rect dirty) { 2193 2194 // If we get here with a disabled & requested hardware renderer, something went 2195 // wrong (an invalidate posted right before we destroyed the hardware surface 2196 // for instance) so we should just bail out. Locking the surface with software 2197 // rendering at this point would lock it forever and prevent hardware renderer 2198 // from doing its job when it comes back. 2199 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2200 attachInfo.mHardwareRenderer.isRequested()) { 2201 mFullRedrawNeeded = true; 2202 scheduleTraversals(); 2203 return false; 2204 } 2205 2206 // Draw with software renderer. 2207 Canvas canvas; 2208 try { 2209 int left = dirty.left; 2210 int top = dirty.top; 2211 int right = dirty.right; 2212 int bottom = dirty.bottom; 2213 2214 canvas = mSurface.lockCanvas(dirty); 2215 2216 if (left != dirty.left || top != dirty.top || right != dirty.right || 2217 bottom != dirty.bottom) { 2218 attachInfo.mIgnoreDirtyState = true; 2219 } 2220 2221 // TODO: Do this in native 2222 canvas.setDensity(mDensity); 2223 } catch (Surface.OutOfResourcesException e) { 2224 Log.e(TAG, "OutOfResourcesException locking surface", e); 2225 try { 2226 if (!mWindowSession.outOfMemory(mWindow)) { 2227 Slog.w(TAG, "No processes killed for memory; killing self"); 2228 Process.killProcess(Process.myPid()); 2229 } 2230 } catch (RemoteException ex) { 2231 } 2232 mLayoutRequested = true; // ask wm for a new surface next time. 2233 return false; 2234 } catch (IllegalArgumentException e) { 2235 Log.e(TAG, "Could not lock surface", e); 2236 // Don't assume this is due to out of memory, it could be 2237 // something else, and if it is something else then we could 2238 // kill stuff (or ourself) for no reason. 2239 mLayoutRequested = true; // ask wm for a new surface next time. 2240 return false; 2241 } 2242 2243 try { 2244 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2245 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2246 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2247 //canvas.drawARGB(255, 255, 0, 0); 2248 } 2249 2250 // If this bitmap's format includes an alpha channel, we 2251 // need to clear it before drawing so that the child will 2252 // properly re-composite its drawing on a transparent 2253 // background. This automatically respects the clip/dirty region 2254 // or 2255 // If we are applying an offset, we need to clear the area 2256 // where the offset doesn't appear to avoid having garbage 2257 // left in the blank areas. 2258 if (!canvas.isOpaque() || yoff != 0) { 2259 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2260 } 2261 2262 dirty.setEmpty(); 2263 mIsAnimating = false; 2264 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2265 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2266 2267 if (DEBUG_DRAW) { 2268 Context cxt = mView.getContext(); 2269 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2270 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2271 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2272 } 2273 try { 2274 canvas.translate(0, -yoff); 2275 if (mTranslator != null) { 2276 mTranslator.translateCanvas(canvas); 2277 } 2278 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2279 attachInfo.mSetIgnoreDirtyState = false; 2280 2281 mView.draw(canvas); 2282 2283 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2284 } finally { 2285 if (!attachInfo.mSetIgnoreDirtyState) { 2286 // Only clear the flag if it was not set during the mView.draw() call 2287 attachInfo.mIgnoreDirtyState = false; 2288 } 2289 } 2290 } finally { 2291 try { 2292 surface.unlockCanvasAndPost(canvas); 2293 } catch (IllegalArgumentException e) { 2294 Log.e(TAG, "Could not unlock surface", e); 2295 mLayoutRequested = true; // ask wm for a new surface next time. 2296 //noinspection ReturnInsideFinallyBlock 2297 return false; 2298 } 2299 2300 if (LOCAL_LOGV) { 2301 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2302 } 2303 } 2304 return true; 2305 } 2306 2307 /** 2308 * We want to draw a highlight around the current accessibility focused. 2309 * Since adding a style for all possible view is not a viable option we 2310 * have this specialized drawing method. 2311 * 2312 * Note: We are doing this here to be able to draw the highlight for 2313 * virtual views in addition to real ones. 2314 * 2315 * @param canvas The canvas on which to draw. 2316 */ 2317 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2318 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2319 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2320 return; 2321 } 2322 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2323 return; 2324 } 2325 Drawable drawable = getAccessibilityFocusedDrawable(); 2326 if (drawable == null) { 2327 return; 2328 } 2329 AccessibilityNodeProvider provider = 2330 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2331 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2332 if (provider == null) { 2333 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2334 } else { 2335 if (mAccessibilityFocusedVirtualView == null) { 2336 return; 2337 } 2338 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2339 } 2340 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2341 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2342 drawable.setBounds(bounds); 2343 drawable.draw(canvas); 2344 } 2345 2346 private Drawable getAccessibilityFocusedDrawable() { 2347 if (mAttachInfo != null) { 2348 // Lazily load the accessibility focus drawable. 2349 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2350 TypedValue value = new TypedValue(); 2351 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2352 R.attr.accessibilityFocusedDrawable, value, true); 2353 if (resolved) { 2354 mAttachInfo.mAccessibilityFocusDrawable = 2355 mView.mContext.getResources().getDrawable(value.resourceId); 2356 } 2357 } 2358 return mAttachInfo.mAccessibilityFocusDrawable; 2359 } 2360 return null; 2361 } 2362 2363 void invalidateDisplayLists() { 2364 final ArrayList<DisplayList> displayLists = mDisplayLists; 2365 final int count = displayLists.size(); 2366 2367 for (int i = 0; i < count; i++) { 2368 final DisplayList displayList = displayLists.get(i); 2369 displayList.invalidate(); 2370 displayList.clear(); 2371 } 2372 2373 displayLists.clear(); 2374 } 2375 2376 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2377 final View.AttachInfo attachInfo = mAttachInfo; 2378 final Rect ci = attachInfo.mContentInsets; 2379 final Rect vi = attachInfo.mVisibleInsets; 2380 int scrollY = 0; 2381 boolean handled = false; 2382 2383 if (vi.left > ci.left || vi.top > ci.top 2384 || vi.right > ci.right || vi.bottom > ci.bottom) { 2385 // We'll assume that we aren't going to change the scroll 2386 // offset, since we want to avoid that unless it is actually 2387 // going to make the focus visible... otherwise we scroll 2388 // all over the place. 2389 scrollY = mScrollY; 2390 // We can be called for two different situations: during a draw, 2391 // to update the scroll position if the focus has changed (in which 2392 // case 'rectangle' is null), or in response to a 2393 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2394 // is non-null and we just want to scroll to whatever that 2395 // rectangle is). 2396 View focus = mRealFocusedView; 2397 2398 // When in touch mode, focus points to the previously focused view, 2399 // which may have been removed from the view hierarchy. The following 2400 // line checks whether the view is still in our hierarchy. 2401 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2402 mRealFocusedView = null; 2403 return false; 2404 } 2405 2406 if (focus != mLastScrolledFocus) { 2407 // If the focus has changed, then ignore any requests to scroll 2408 // to a rectangle; first we want to make sure the entire focus 2409 // view is visible. 2410 rectangle = null; 2411 } 2412 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2413 + " rectangle=" + rectangle + " ci=" + ci 2414 + " vi=" + vi); 2415 if (focus == mLastScrolledFocus && !mScrollMayChange 2416 && rectangle == null) { 2417 // Optimization: if the focus hasn't changed since last 2418 // time, and no layout has happened, then just leave things 2419 // as they are. 2420 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2421 + mScrollY + " vi=" + vi.toShortString()); 2422 } else if (focus != null) { 2423 // We need to determine if the currently focused view is 2424 // within the visible part of the window and, if not, apply 2425 // a pan so it can be seen. 2426 mLastScrolledFocus = focus; 2427 mScrollMayChange = false; 2428 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2429 // Try to find the rectangle from the focus view. 2430 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2431 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2432 + mView.getWidth() + " h=" + mView.getHeight() 2433 + " ci=" + ci.toShortString() 2434 + " vi=" + vi.toShortString()); 2435 if (rectangle == null) { 2436 focus.getFocusedRect(mTempRect); 2437 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2438 + ": focusRect=" + mTempRect.toShortString()); 2439 if (mView instanceof ViewGroup) { 2440 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2441 focus, mTempRect); 2442 } 2443 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2444 "Focus in window: focusRect=" 2445 + mTempRect.toShortString() 2446 + " visRect=" + mVisRect.toShortString()); 2447 } else { 2448 mTempRect.set(rectangle); 2449 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2450 "Request scroll to rect: " 2451 + mTempRect.toShortString() 2452 + " visRect=" + mVisRect.toShortString()); 2453 } 2454 if (mTempRect.intersect(mVisRect)) { 2455 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2456 "Focus window visible rect: " 2457 + mTempRect.toShortString()); 2458 if (mTempRect.height() > 2459 (mView.getHeight()-vi.top-vi.bottom)) { 2460 // If the focus simply is not going to fit, then 2461 // best is probably just to leave things as-is. 2462 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2463 "Too tall; leaving scrollY=" + scrollY); 2464 } else if ((mTempRect.top-scrollY) < vi.top) { 2465 scrollY -= vi.top - (mTempRect.top-scrollY); 2466 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2467 "Top covered; scrollY=" + scrollY); 2468 } else if ((mTempRect.bottom-scrollY) 2469 > (mView.getHeight()-vi.bottom)) { 2470 scrollY += (mTempRect.bottom-scrollY) 2471 - (mView.getHeight()-vi.bottom); 2472 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2473 "Bottom covered; scrollY=" + scrollY); 2474 } 2475 handled = true; 2476 } 2477 } 2478 } 2479 } 2480 2481 if (scrollY != mScrollY) { 2482 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2483 + mScrollY + " , new=" + scrollY); 2484 if (!immediate && mResizeBuffer == null) { 2485 if (mScroller == null) { 2486 mScroller = new Scroller(mView.getContext()); 2487 } 2488 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2489 } else if (mScroller != null) { 2490 mScroller.abortAnimation(); 2491 } 2492 mScrollY = scrollY; 2493 } 2494 2495 return handled; 2496 } 2497 2498 /** 2499 * @hide 2500 */ 2501 public View getAccessibilityFocusedHost() { 2502 return mAccessibilityFocusedHost; 2503 } 2504 2505 /** 2506 * @hide 2507 */ 2508 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2509 return mAccessibilityFocusedVirtualView; 2510 } 2511 2512 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2513 // If we have a virtual view with accessibility focus we need 2514 // to clear the focus and invalidate the virtual view bounds. 2515 if (mAccessibilityFocusedVirtualView != null) { 2516 2517 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2518 View focusHost = mAccessibilityFocusedHost; 2519 focusHost.clearAccessibilityFocusNoCallbacks(); 2520 2521 // Wipe the state of the current accessibility focus since 2522 // the call into the provider to clear accessibility focus 2523 // will fire an accessibility event which will end up calling 2524 // this method and we want to have clean state when this 2525 // invocation happens. 2526 mAccessibilityFocusedHost = null; 2527 mAccessibilityFocusedVirtualView = null; 2528 2529 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2530 if (provider != null) { 2531 // Invalidate the area of the cleared accessibility focus. 2532 focusNode.getBoundsInParent(mTempRect); 2533 focusHost.invalidate(mTempRect); 2534 // Clear accessibility focus in the virtual node. 2535 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2536 focusNode.getSourceNodeId()); 2537 provider.performAction(virtualNodeId, 2538 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2539 } 2540 focusNode.recycle(); 2541 } 2542 if (mAccessibilityFocusedHost != null) { 2543 // Clear accessibility focus in the view. 2544 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2545 } 2546 2547 // Set the new focus host and node. 2548 mAccessibilityFocusedHost = view; 2549 mAccessibilityFocusedVirtualView = node; 2550 } 2551 2552 public void requestChildFocus(View child, View focused) { 2553 checkThread(); 2554 2555 if (DEBUG_INPUT_RESIZE) { 2556 Log.v(TAG, "Request child focus: focus now " + focused); 2557 } 2558 2559 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2560 scheduleTraversals(); 2561 2562 mFocusedView = mRealFocusedView = focused; 2563 } 2564 2565 public void clearChildFocus(View child) { 2566 checkThread(); 2567 2568 if (DEBUG_INPUT_RESIZE) { 2569 Log.v(TAG, "Clearing child focus"); 2570 } 2571 2572 mOldFocusedView = mFocusedView; 2573 2574 // Invoke the listener only if there is no view to take focus 2575 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2576 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2577 } 2578 2579 mFocusedView = mRealFocusedView = null; 2580 } 2581 2582 @Override 2583 public ViewParent getParentForAccessibility() { 2584 return null; 2585 } 2586 2587 public void focusableViewAvailable(View v) { 2588 checkThread(); 2589 if (mView != null) { 2590 if (!mView.hasFocus()) { 2591 v.requestFocus(); 2592 } else { 2593 // the one case where will transfer focus away from the current one 2594 // is if the current view is a view group that prefers to give focus 2595 // to its children first AND the view is a descendant of it. 2596 mFocusedView = mView.findFocus(); 2597 boolean descendantsHaveDibsOnFocus = 2598 (mFocusedView instanceof ViewGroup) && 2599 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2600 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2601 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2602 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2603 v.requestFocus(); 2604 } 2605 } 2606 } 2607 } 2608 2609 public void recomputeViewAttributes(View child) { 2610 checkThread(); 2611 if (mView == child) { 2612 mAttachInfo.mRecomputeGlobalAttributes = true; 2613 if (!mWillDrawSoon) { 2614 scheduleTraversals(); 2615 } 2616 } 2617 } 2618 2619 void dispatchDetachedFromWindow() { 2620 if (mView != null && mView.mAttachInfo != null) { 2621 if (mAttachInfo.mHardwareRenderer != null && 2622 mAttachInfo.mHardwareRenderer.isEnabled()) { 2623 mAttachInfo.mHardwareRenderer.validate(); 2624 } 2625 mView.dispatchDetachedFromWindow(); 2626 } 2627 2628 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2629 mAccessibilityManager.removeAccessibilityStateChangeListener( 2630 mAccessibilityInteractionConnectionManager); 2631 removeSendWindowContentChangedCallback(); 2632 2633 destroyHardwareRenderer(); 2634 2635 setAccessibilityFocus(null, null); 2636 2637 mView = null; 2638 mAttachInfo.mRootView = null; 2639 mAttachInfo.mSurface = null; 2640 2641 mSurface.release(); 2642 2643 if (mInputQueueCallback != null && mInputQueue != null) { 2644 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2645 mInputQueueCallback = null; 2646 mInputQueue = null; 2647 } else if (mInputEventReceiver != null) { 2648 mInputEventReceiver.dispose(); 2649 mInputEventReceiver = null; 2650 } 2651 try { 2652 mWindowSession.remove(mWindow); 2653 } catch (RemoteException e) { 2654 } 2655 2656 // Dispose the input channel after removing the window so the Window Manager 2657 // doesn't interpret the input channel being closed as an abnormal termination. 2658 if (mInputChannel != null) { 2659 mInputChannel.dispose(); 2660 mInputChannel = null; 2661 } 2662 2663 unscheduleTraversals(); 2664 } 2665 2666 void updateConfiguration(Configuration config, boolean force) { 2667 if (DEBUG_CONFIGURATION) Log.v(TAG, 2668 "Applying new config to window " 2669 + mWindowAttributes.getTitle() 2670 + ": " + config); 2671 2672 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2673 if (ci != null) { 2674 config = new Configuration(config); 2675 ci.applyToConfiguration(mNoncompatDensity, config); 2676 } 2677 2678 synchronized (sConfigCallbacks) { 2679 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2680 sConfigCallbacks.get(i).onConfigurationChanged(config); 2681 } 2682 } 2683 if (mView != null) { 2684 // At this point the resources have been updated to 2685 // have the most recent config, whatever that is. Use 2686 // the one in them which may be newer. 2687 config = mView.getResources().getConfiguration(); 2688 if (force || mLastConfiguration.diff(config) != 0) { 2689 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2690 final int currentLayoutDirection = config.getLayoutDirection(); 2691 mLastConfiguration.setTo(config); 2692 if (lastLayoutDirection != currentLayoutDirection && 2693 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2694 mView.setLayoutDirection(currentLayoutDirection); 2695 } 2696 mView.dispatchConfigurationChanged(config); 2697 } 2698 } 2699 } 2700 2701 /** 2702 * Return true if child is an ancestor of parent, (or equal to the parent). 2703 */ 2704 public static boolean isViewDescendantOf(View child, View parent) { 2705 if (child == parent) { 2706 return true; 2707 } 2708 2709 final ViewParent theParent = child.getParent(); 2710 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2711 } 2712 2713 private static void forceLayout(View view) { 2714 view.forceLayout(); 2715 if (view instanceof ViewGroup) { 2716 ViewGroup group = (ViewGroup) view; 2717 final int count = group.getChildCount(); 2718 for (int i = 0; i < count; i++) { 2719 forceLayout(group.getChildAt(i)); 2720 } 2721 } 2722 } 2723 2724 private final static int MSG_INVALIDATE = 1; 2725 private final static int MSG_INVALIDATE_RECT = 2; 2726 private final static int MSG_DIE = 3; 2727 private final static int MSG_RESIZED = 4; 2728 private final static int MSG_RESIZED_REPORT = 5; 2729 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2730 private final static int MSG_DISPATCH_KEY = 7; 2731 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2732 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2733 private final static int MSG_IME_FINISHED_EVENT = 10; 2734 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2735 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2736 private final static int MSG_CHECK_FOCUS = 13; 2737 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2738 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2739 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2740 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2741 private final static int MSG_UPDATE_CONFIGURATION = 18; 2742 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2743 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2744 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2745 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2746 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2747 private final static int MSG_INVALIDATE_WORLD = 24; 2748 private final static int MSG_WINDOW_MOVED = 25; 2749 2750 final class ViewRootHandler extends Handler { 2751 @Override 2752 public String getMessageName(Message message) { 2753 switch (message.what) { 2754 case MSG_INVALIDATE: 2755 return "MSG_INVALIDATE"; 2756 case MSG_INVALIDATE_RECT: 2757 return "MSG_INVALIDATE_RECT"; 2758 case MSG_DIE: 2759 return "MSG_DIE"; 2760 case MSG_RESIZED: 2761 return "MSG_RESIZED"; 2762 case MSG_RESIZED_REPORT: 2763 return "MSG_RESIZED_REPORT"; 2764 case MSG_WINDOW_FOCUS_CHANGED: 2765 return "MSG_WINDOW_FOCUS_CHANGED"; 2766 case MSG_DISPATCH_KEY: 2767 return "MSG_DISPATCH_KEY"; 2768 case MSG_DISPATCH_APP_VISIBILITY: 2769 return "MSG_DISPATCH_APP_VISIBILITY"; 2770 case MSG_DISPATCH_GET_NEW_SURFACE: 2771 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2772 case MSG_IME_FINISHED_EVENT: 2773 return "MSG_IME_FINISHED_EVENT"; 2774 case MSG_DISPATCH_KEY_FROM_IME: 2775 return "MSG_DISPATCH_KEY_FROM_IME"; 2776 case MSG_FINISH_INPUT_CONNECTION: 2777 return "MSG_FINISH_INPUT_CONNECTION"; 2778 case MSG_CHECK_FOCUS: 2779 return "MSG_CHECK_FOCUS"; 2780 case MSG_CLOSE_SYSTEM_DIALOGS: 2781 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2782 case MSG_DISPATCH_DRAG_EVENT: 2783 return "MSG_DISPATCH_DRAG_EVENT"; 2784 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2785 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2786 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2787 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2788 case MSG_UPDATE_CONFIGURATION: 2789 return "MSG_UPDATE_CONFIGURATION"; 2790 case MSG_PROCESS_INPUT_EVENTS: 2791 return "MSG_PROCESS_INPUT_EVENTS"; 2792 case MSG_DISPATCH_SCREEN_STATE: 2793 return "MSG_DISPATCH_SCREEN_STATE"; 2794 case MSG_INVALIDATE_DISPLAY_LIST: 2795 return "MSG_INVALIDATE_DISPLAY_LIST"; 2796 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2797 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2798 case MSG_DISPATCH_DONE_ANIMATING: 2799 return "MSG_DISPATCH_DONE_ANIMATING"; 2800 case MSG_WINDOW_MOVED: 2801 return "MSG_WINDOW_MOVED"; 2802 } 2803 return super.getMessageName(message); 2804 } 2805 2806 @Override 2807 public void handleMessage(Message msg) { 2808 switch (msg.what) { 2809 case MSG_INVALIDATE: 2810 ((View) msg.obj).invalidate(); 2811 break; 2812 case MSG_INVALIDATE_RECT: 2813 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2814 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2815 info.release(); 2816 break; 2817 case MSG_IME_FINISHED_EVENT: 2818 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2819 break; 2820 case MSG_PROCESS_INPUT_EVENTS: 2821 mProcessInputEventsScheduled = false; 2822 doProcessInputEvents(); 2823 break; 2824 case MSG_DISPATCH_APP_VISIBILITY: 2825 handleAppVisibility(msg.arg1 != 0); 2826 break; 2827 case MSG_DISPATCH_GET_NEW_SURFACE: 2828 handleGetNewSurface(); 2829 break; 2830 case MSG_RESIZED: { 2831 // Recycled in the fall through... 2832 SomeArgs args = (SomeArgs) msg.obj; 2833 if (mWinFrame.equals(args.arg1) 2834 && mPendingContentInsets.equals(args.arg2) 2835 && mPendingVisibleInsets.equals(args.arg3) 2836 && args.arg4 == null) { 2837 break; 2838 } 2839 } // fall through... 2840 case MSG_RESIZED_REPORT: 2841 if (mAdded) { 2842 SomeArgs args = (SomeArgs) msg.obj; 2843 2844 Configuration config = (Configuration) args.arg4; 2845 if (config != null) { 2846 updateConfiguration(config, false); 2847 } 2848 2849 mWinFrame.set((Rect) args.arg1); 2850 mPendingContentInsets.set((Rect) args.arg2); 2851 mPendingVisibleInsets.set((Rect) args.arg3); 2852 2853 args.recycle(); 2854 2855 if (msg.what == MSG_RESIZED_REPORT) { 2856 mReportNextDraw = true; 2857 } 2858 2859 if (mView != null) { 2860 forceLayout(mView); 2861 } 2862 2863 requestLayout(); 2864 } 2865 break; 2866 case MSG_WINDOW_MOVED: 2867 if (mAdded) { 2868 final int w = mWinFrame.width(); 2869 final int h = mWinFrame.height(); 2870 final int l = msg.arg1; 2871 final int t = msg.arg2; 2872 mWinFrame.left = l; 2873 mWinFrame.right = l + w; 2874 mWinFrame.top = t; 2875 mWinFrame.bottom = t + h; 2876 2877 if (mView != null) { 2878 forceLayout(mView); 2879 } 2880 requestLayout(); 2881 } 2882 break; 2883 case MSG_WINDOW_FOCUS_CHANGED: { 2884 if (mAdded) { 2885 boolean hasWindowFocus = msg.arg1 != 0; 2886 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2887 2888 profileRendering(hasWindowFocus); 2889 2890 if (hasWindowFocus) { 2891 boolean inTouchMode = msg.arg2 != 0; 2892 ensureTouchModeLocally(inTouchMode); 2893 2894 if (mAttachInfo.mHardwareRenderer != null && 2895 mSurface != null && mSurface.isValid()) { 2896 mFullRedrawNeeded = true; 2897 try { 2898 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2899 mWidth, mHeight, mHolder.getSurface())) { 2900 mFullRedrawNeeded = true; 2901 } 2902 } catch (Surface.OutOfResourcesException e) { 2903 Log.e(TAG, "OutOfResourcesException locking surface", e); 2904 try { 2905 if (!mWindowSession.outOfMemory(mWindow)) { 2906 Slog.w(TAG, "No processes killed for memory; killing self"); 2907 Process.killProcess(Process.myPid()); 2908 } 2909 } catch (RemoteException ex) { 2910 } 2911 // Retry in a bit. 2912 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2913 return; 2914 } 2915 } 2916 } 2917 2918 mLastWasImTarget = WindowManager.LayoutParams 2919 .mayUseInputMethod(mWindowAttributes.flags); 2920 2921 InputMethodManager imm = InputMethodManager.peekInstance(); 2922 if (mView != null) { 2923 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2924 imm.startGettingWindowFocus(mView); 2925 } 2926 mAttachInfo.mKeyDispatchState.reset(); 2927 mView.dispatchWindowFocusChanged(hasWindowFocus); 2928 } 2929 2930 // Note: must be done after the focus change callbacks, 2931 // so all of the view state is set up correctly. 2932 if (hasWindowFocus) { 2933 if (imm != null && mLastWasImTarget) { 2934 imm.onWindowFocus(mView, mView.findFocus(), 2935 mWindowAttributes.softInputMode, 2936 !mHasHadWindowFocus, mWindowAttributes.flags); 2937 } 2938 // Clear the forward bit. We can just do this directly, since 2939 // the window manager doesn't care about it. 2940 mWindowAttributes.softInputMode &= 2941 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2942 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2943 .softInputMode &= 2944 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2945 mHasHadWindowFocus = true; 2946 } 2947 2948 setAccessibilityFocus(null, null); 2949 2950 if (mView != null && mAccessibilityManager.isEnabled()) { 2951 if (hasWindowFocus) { 2952 mView.sendAccessibilityEvent( 2953 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2954 } 2955 } 2956 } 2957 } break; 2958 case MSG_DIE: 2959 doDie(); 2960 break; 2961 case MSG_DISPATCH_KEY: { 2962 KeyEvent event = (KeyEvent)msg.obj; 2963 enqueueInputEvent(event, null, 0, true); 2964 } break; 2965 case MSG_DISPATCH_KEY_FROM_IME: { 2966 if (LOCAL_LOGV) Log.v( 2967 TAG, "Dispatching key " 2968 + msg.obj + " from IME to " + mView); 2969 KeyEvent event = (KeyEvent)msg.obj; 2970 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2971 // The IME is trying to say this event is from the 2972 // system! Bad bad bad! 2973 //noinspection UnusedAssignment 2974 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2975 } 2976 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2977 } break; 2978 case MSG_FINISH_INPUT_CONNECTION: { 2979 InputMethodManager imm = InputMethodManager.peekInstance(); 2980 if (imm != null) { 2981 imm.reportFinishInputConnection((InputConnection)msg.obj); 2982 } 2983 } break; 2984 case MSG_CHECK_FOCUS: { 2985 InputMethodManager imm = InputMethodManager.peekInstance(); 2986 if (imm != null) { 2987 imm.checkFocus(); 2988 } 2989 } break; 2990 case MSG_CLOSE_SYSTEM_DIALOGS: { 2991 if (mView != null) { 2992 mView.onCloseSystemDialogs((String)msg.obj); 2993 } 2994 } break; 2995 case MSG_DISPATCH_DRAG_EVENT: 2996 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2997 DragEvent event = (DragEvent)msg.obj; 2998 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2999 handleDragEvent(event); 3000 } break; 3001 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3002 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3003 } break; 3004 case MSG_UPDATE_CONFIGURATION: { 3005 Configuration config = (Configuration)msg.obj; 3006 if (config.isOtherSeqNewer(mLastConfiguration)) { 3007 config = mLastConfiguration; 3008 } 3009 updateConfiguration(config, false); 3010 } break; 3011 case MSG_DISPATCH_SCREEN_STATE: { 3012 if (mView != null) { 3013 handleScreenStateChange(msg.arg1 == 1); 3014 } 3015 } break; 3016 case MSG_INVALIDATE_DISPLAY_LIST: { 3017 invalidateDisplayLists(); 3018 } break; 3019 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3020 setAccessibilityFocus(null, null); 3021 } break; 3022 case MSG_DISPATCH_DONE_ANIMATING: { 3023 handleDispatchDoneAnimating(); 3024 } break; 3025 case MSG_INVALIDATE_WORLD: { 3026 if (mView != null) { 3027 invalidateWorld(mView); 3028 } 3029 } break; 3030 } 3031 } 3032 } 3033 3034 final ViewRootHandler mHandler = new ViewRootHandler(); 3035 3036 /** 3037 * Something in the current window tells us we need to change the touch mode. For 3038 * example, we are not in touch mode, and the user touches the screen. 3039 * 3040 * If the touch mode has changed, tell the window manager, and handle it locally. 3041 * 3042 * @param inTouchMode Whether we want to be in touch mode. 3043 * @return True if the touch mode changed and focus changed was changed as a result 3044 */ 3045 boolean ensureTouchMode(boolean inTouchMode) { 3046 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3047 + "touch mode is " + mAttachInfo.mInTouchMode); 3048 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3049 3050 // tell the window manager 3051 try { 3052 mWindowSession.setInTouchMode(inTouchMode); 3053 } catch (RemoteException e) { 3054 throw new RuntimeException(e); 3055 } 3056 3057 // handle the change 3058 return ensureTouchModeLocally(inTouchMode); 3059 } 3060 3061 /** 3062 * Ensure that the touch mode for this window is set, and if it is changing, 3063 * take the appropriate action. 3064 * @param inTouchMode Whether we want to be in touch mode. 3065 * @return True if the touch mode changed and focus changed was changed as a result 3066 */ 3067 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3068 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3069 + "touch mode is " + mAttachInfo.mInTouchMode); 3070 3071 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3072 3073 mAttachInfo.mInTouchMode = inTouchMode; 3074 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3075 3076 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3077 } 3078 3079 private boolean enterTouchMode() { 3080 if (mView != null) { 3081 if (mView.hasFocus()) { 3082 // note: not relying on mFocusedView here because this could 3083 // be when the window is first being added, and mFocused isn't 3084 // set yet. 3085 final View focused = mView.findFocus(); 3086 if (focused != null && !focused.isFocusableInTouchMode()) { 3087 3088 final ViewGroup ancestorToTakeFocus = 3089 findAncestorToTakeFocusInTouchMode(focused); 3090 if (ancestorToTakeFocus != null) { 3091 // there is an ancestor that wants focus after its descendants that 3092 // is focusable in touch mode.. give it focus 3093 return ancestorToTakeFocus.requestFocus(); 3094 } else { 3095 // nothing appropriate to have focus in touch mode, clear it out 3096 mView.unFocus(); 3097 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3098 mFocusedView = null; 3099 mOldFocusedView = null; 3100 return true; 3101 } 3102 } 3103 } 3104 } 3105 return false; 3106 } 3107 3108 /** 3109 * Find an ancestor of focused that wants focus after its descendants and is 3110 * focusable in touch mode. 3111 * @param focused The currently focused view. 3112 * @return An appropriate view, or null if no such view exists. 3113 */ 3114 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3115 ViewParent parent = focused.getParent(); 3116 while (parent instanceof ViewGroup) { 3117 final ViewGroup vgParent = (ViewGroup) parent; 3118 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3119 && vgParent.isFocusableInTouchMode()) { 3120 return vgParent; 3121 } 3122 if (vgParent.isRootNamespace()) { 3123 return null; 3124 } else { 3125 parent = vgParent.getParent(); 3126 } 3127 } 3128 return null; 3129 } 3130 3131 private boolean leaveTouchMode() { 3132 if (mView != null) { 3133 if (mView.hasFocus()) { 3134 // i learned the hard way to not trust mFocusedView :) 3135 mFocusedView = mView.findFocus(); 3136 if (!(mFocusedView instanceof ViewGroup)) { 3137 // some view has focus, let it keep it 3138 return false; 3139 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3140 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3141 // some view group has focus, and doesn't prefer its children 3142 // over itself for focus, so let them keep it. 3143 return false; 3144 } 3145 } 3146 3147 // find the best view to give focus to in this brave new non-touch-mode 3148 // world 3149 final View focused = focusSearch(null, View.FOCUS_DOWN); 3150 if (focused != null) { 3151 return focused.requestFocus(View.FOCUS_DOWN); 3152 } 3153 } 3154 return false; 3155 } 3156 3157 private void deliverInputEvent(QueuedInputEvent q) { 3158 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3159 try { 3160 if (q.mEvent instanceof KeyEvent) { 3161 deliverKeyEvent(q); 3162 } else { 3163 final int source = q.mEvent.getSource(); 3164 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3165 deliverPointerEvent(q); 3166 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3167 deliverTrackballEvent(q); 3168 } else { 3169 deliverGenericMotionEvent(q); 3170 } 3171 } 3172 } finally { 3173 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3174 } 3175 } 3176 3177 private void deliverPointerEvent(QueuedInputEvent q) { 3178 final MotionEvent event = (MotionEvent)q.mEvent; 3179 final boolean isTouchEvent = event.isTouchEvent(); 3180 if (mInputEventConsistencyVerifier != null) { 3181 if (isTouchEvent) { 3182 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3183 } else { 3184 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3185 } 3186 } 3187 3188 // If there is no view, then the event will not be handled. 3189 if (mView == null || !mAdded) { 3190 finishInputEvent(q, false); 3191 return; 3192 } 3193 3194 // Translate the pointer event for compatibility, if needed. 3195 if (mTranslator != null) { 3196 mTranslator.translateEventInScreenToAppWindow(event); 3197 } 3198 3199 // Enter touch mode on down or scroll. 3200 final int action = event.getAction(); 3201 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3202 ensureTouchMode(true); 3203 } 3204 3205 // Offset the scroll position. 3206 if (mCurScrollY != 0) { 3207 event.offsetLocation(0, mCurScrollY); 3208 } 3209 if (MEASURE_LATENCY) { 3210 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3211 } 3212 3213 // Remember the touch position for possible drag-initiation. 3214 if (isTouchEvent) { 3215 mLastTouchPoint.x = event.getRawX(); 3216 mLastTouchPoint.y = event.getRawY(); 3217 } 3218 3219 // Dispatch touch to view hierarchy. 3220 boolean handled = mView.dispatchPointerEvent(event); 3221 if (MEASURE_LATENCY) { 3222 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3223 } 3224 if (handled) { 3225 finishInputEvent(q, true); 3226 return; 3227 } 3228 3229 // Pointer event was unhandled. 3230 finishInputEvent(q, false); 3231 } 3232 3233 private void deliverTrackballEvent(QueuedInputEvent q) { 3234 final MotionEvent event = (MotionEvent)q.mEvent; 3235 if (mInputEventConsistencyVerifier != null) { 3236 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3237 } 3238 3239 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3240 if (LOCAL_LOGV) 3241 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3242 3243 // Dispatch to the IME before propagating down the view hierarchy. 3244 // The IME will eventually call back into handleImeFinishedEvent. 3245 if (mLastWasImTarget) { 3246 InputMethodManager imm = InputMethodManager.peekInstance(); 3247 if (imm != null) { 3248 final int seq = event.getSequenceNumber(); 3249 if (DEBUG_IMF) 3250 Log.v(TAG, "Sending trackball event to IME: seq=" 3251 + seq + " event=" + event); 3252 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3253 mInputMethodCallback); 3254 return; 3255 } 3256 } 3257 } 3258 3259 // Not dispatching to IME, continue with post IME actions. 3260 deliverTrackballEventPostIme(q); 3261 } 3262 3263 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3264 final MotionEvent event = (MotionEvent) q.mEvent; 3265 3266 // If there is no view, then the event will not be handled. 3267 if (mView == null || !mAdded) { 3268 finishInputEvent(q, false); 3269 return; 3270 } 3271 3272 // Deliver the trackball event to the view. 3273 if (mView.dispatchTrackballEvent(event)) { 3274 // If we reach this, we delivered a trackball event to mView and 3275 // mView consumed it. Because we will not translate the trackball 3276 // event into a key event, touch mode will not exit, so we exit 3277 // touch mode here. 3278 ensureTouchMode(false); 3279 3280 finishInputEvent(q, true); 3281 mLastTrackballTime = Integer.MIN_VALUE; 3282 return; 3283 } 3284 3285 // Translate the trackball event into DPAD keys and try to deliver those. 3286 final TrackballAxis x = mTrackballAxisX; 3287 final TrackballAxis y = mTrackballAxisY; 3288 3289 long curTime = SystemClock.uptimeMillis(); 3290 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3291 // It has been too long since the last movement, 3292 // so restart at the beginning. 3293 x.reset(0); 3294 y.reset(0); 3295 mLastTrackballTime = curTime; 3296 } 3297 3298 final int action = event.getAction(); 3299 final int metaState = event.getMetaState(); 3300 switch (action) { 3301 case MotionEvent.ACTION_DOWN: 3302 x.reset(2); 3303 y.reset(2); 3304 enqueueInputEvent(new KeyEvent(curTime, curTime, 3305 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3306 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3307 InputDevice.SOURCE_KEYBOARD)); 3308 break; 3309 case MotionEvent.ACTION_UP: 3310 x.reset(2); 3311 y.reset(2); 3312 enqueueInputEvent(new KeyEvent(curTime, curTime, 3313 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3314 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3315 InputDevice.SOURCE_KEYBOARD)); 3316 break; 3317 } 3318 3319 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3320 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3321 + " move=" + event.getX() 3322 + " / Y=" + y.position + " step=" 3323 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3324 + " move=" + event.getY()); 3325 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3326 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3327 3328 // Generate DPAD events based on the trackball movement. 3329 // We pick the axis that has moved the most as the direction of 3330 // the DPAD. When we generate DPAD events for one axis, then the 3331 // other axis is reset -- we don't want to perform DPAD jumps due 3332 // to slight movements in the trackball when making major movements 3333 // along the other axis. 3334 int keycode = 0; 3335 int movement = 0; 3336 float accel = 1; 3337 if (xOff > yOff) { 3338 movement = x.generate((2/event.getXPrecision())); 3339 if (movement != 0) { 3340 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3341 : KeyEvent.KEYCODE_DPAD_LEFT; 3342 accel = x.acceleration; 3343 y.reset(2); 3344 } 3345 } else if (yOff > 0) { 3346 movement = y.generate((2/event.getYPrecision())); 3347 if (movement != 0) { 3348 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3349 : KeyEvent.KEYCODE_DPAD_UP; 3350 accel = y.acceleration; 3351 x.reset(2); 3352 } 3353 } 3354 3355 if (keycode != 0) { 3356 if (movement < 0) movement = -movement; 3357 int accelMovement = (int)(movement * accel); 3358 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3359 + " accelMovement=" + accelMovement 3360 + " accel=" + accel); 3361 if (accelMovement > movement) { 3362 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3363 + keycode); 3364 movement--; 3365 int repeatCount = accelMovement - movement; 3366 enqueueInputEvent(new KeyEvent(curTime, curTime, 3367 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3368 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3369 InputDevice.SOURCE_KEYBOARD)); 3370 } 3371 while (movement > 0) { 3372 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3373 + keycode); 3374 movement--; 3375 curTime = SystemClock.uptimeMillis(); 3376 enqueueInputEvent(new KeyEvent(curTime, curTime, 3377 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3378 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3379 InputDevice.SOURCE_KEYBOARD)); 3380 enqueueInputEvent(new KeyEvent(curTime, curTime, 3381 KeyEvent.ACTION_UP, keycode, 0, metaState, 3382 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3383 InputDevice.SOURCE_KEYBOARD)); 3384 } 3385 mLastTrackballTime = curTime; 3386 } 3387 3388 // Unfortunately we can't tell whether the application consumed the keys, so 3389 // we always consider the trackball event handled. 3390 finishInputEvent(q, true); 3391 } 3392 3393 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3394 final MotionEvent event = (MotionEvent)q.mEvent; 3395 if (mInputEventConsistencyVerifier != null) { 3396 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3397 } 3398 3399 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3400 if (LOCAL_LOGV) 3401 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3402 3403 // Dispatch to the IME before propagating down the view hierarchy. 3404 // The IME will eventually call back into handleImeFinishedEvent. 3405 if (mLastWasImTarget) { 3406 InputMethodManager imm = InputMethodManager.peekInstance(); 3407 if (imm != null) { 3408 final int seq = event.getSequenceNumber(); 3409 if (DEBUG_IMF) 3410 Log.v(TAG, "Sending generic motion event to IME: seq=" 3411 + seq + " event=" + event); 3412 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3413 mInputMethodCallback); 3414 return; 3415 } 3416 } 3417 } 3418 3419 // Not dispatching to IME, continue with post IME actions. 3420 deliverGenericMotionEventPostIme(q); 3421 } 3422 3423 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3424 final MotionEvent event = (MotionEvent) q.mEvent; 3425 final boolean isJoystick = (event.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3426 3427 // If there is no view, then the event will not be handled. 3428 if (mView == null || !mAdded) { 3429 if (isJoystick) { 3430 updateJoystickDirection(event, false); 3431 } 3432 finishInputEvent(q, false); 3433 return; 3434 } 3435 3436 // Deliver the event to the view. 3437 if (mView.dispatchGenericMotionEvent(event)) { 3438 if (isJoystick) { 3439 updateJoystickDirection(event, false); 3440 } 3441 finishInputEvent(q, true); 3442 return; 3443 } 3444 3445 if (isJoystick) { 3446 // Translate the joystick event into DPAD keys and try to deliver 3447 // those. 3448 updateJoystickDirection(event, true); 3449 finishInputEvent(q, true); 3450 } else { 3451 finishInputEvent(q, false); 3452 } 3453 } 3454 3455 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3456 final long time = event.getEventTime(); 3457 final int metaState = event.getMetaState(); 3458 final int deviceId = event.getDeviceId(); 3459 final int source = event.getSource(); 3460 3461 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3462 if (xDirection == 0) { 3463 xDirection = joystickAxisValueToDirection(event.getX()); 3464 } 3465 3466 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3467 if (yDirection == 0) { 3468 yDirection = joystickAxisValueToDirection(event.getY()); 3469 } 3470 3471 if (xDirection != mLastJoystickXDirection) { 3472 if (mLastJoystickXKeyCode != 0) { 3473 enqueueInputEvent(new KeyEvent(time, time, 3474 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3475 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3476 mLastJoystickXKeyCode = 0; 3477 } 3478 3479 mLastJoystickXDirection = xDirection; 3480 3481 if (xDirection != 0 && synthesizeNewKeys) { 3482 mLastJoystickXKeyCode = xDirection > 0 3483 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3484 enqueueInputEvent(new KeyEvent(time, time, 3485 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3486 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3487 } 3488 } 3489 3490 if (yDirection != mLastJoystickYDirection) { 3491 if (mLastJoystickYKeyCode != 0) { 3492 enqueueInputEvent(new KeyEvent(time, time, 3493 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3494 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3495 mLastJoystickYKeyCode = 0; 3496 } 3497 3498 mLastJoystickYDirection = yDirection; 3499 3500 if (yDirection != 0 && synthesizeNewKeys) { 3501 mLastJoystickYKeyCode = yDirection > 0 3502 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3503 enqueueInputEvent(new KeyEvent(time, time, 3504 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3505 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3506 } 3507 } 3508 } 3509 3510 private static int joystickAxisValueToDirection(float value) { 3511 if (value >= 0.5f) { 3512 return 1; 3513 } else if (value <= -0.5f) { 3514 return -1; 3515 } else { 3516 return 0; 3517 } 3518 } 3519 3520 /** 3521 * Returns true if the key is used for keyboard navigation. 3522 * @param keyEvent The key event. 3523 * @return True if the key is used for keyboard navigation. 3524 */ 3525 private static boolean isNavigationKey(KeyEvent keyEvent) { 3526 switch (keyEvent.getKeyCode()) { 3527 case KeyEvent.KEYCODE_DPAD_LEFT: 3528 case KeyEvent.KEYCODE_DPAD_RIGHT: 3529 case KeyEvent.KEYCODE_DPAD_UP: 3530 case KeyEvent.KEYCODE_DPAD_DOWN: 3531 case KeyEvent.KEYCODE_DPAD_CENTER: 3532 case KeyEvent.KEYCODE_PAGE_UP: 3533 case KeyEvent.KEYCODE_PAGE_DOWN: 3534 case KeyEvent.KEYCODE_MOVE_HOME: 3535 case KeyEvent.KEYCODE_MOVE_END: 3536 case KeyEvent.KEYCODE_TAB: 3537 case KeyEvent.KEYCODE_SPACE: 3538 case KeyEvent.KEYCODE_ENTER: 3539 return true; 3540 } 3541 return false; 3542 } 3543 3544 /** 3545 * Returns true if the key is used for typing. 3546 * @param keyEvent The key event. 3547 * @return True if the key is used for typing. 3548 */ 3549 private static boolean isTypingKey(KeyEvent keyEvent) { 3550 return keyEvent.getUnicodeChar() > 0; 3551 } 3552 3553 /** 3554 * See if the key event means we should leave touch mode (and leave touch mode if so). 3555 * @param event The key event. 3556 * @return Whether this key event should be consumed (meaning the act of 3557 * leaving touch mode alone is considered the event). 3558 */ 3559 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3560 // Only relevant in touch mode. 3561 if (!mAttachInfo.mInTouchMode) { 3562 return false; 3563 } 3564 3565 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3566 final int action = event.getAction(); 3567 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3568 return false; 3569 } 3570 3571 // Don't leave touch mode if the IME told us not to. 3572 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3573 return false; 3574 } 3575 3576 // If the key can be used for keyboard navigation then leave touch mode 3577 // and select a focused view if needed (in ensureTouchMode). 3578 // When a new focused view is selected, we consume the navigation key because 3579 // navigation doesn't make much sense unless a view already has focus so 3580 // the key's purpose is to set focus. 3581 if (isNavigationKey(event)) { 3582 return ensureTouchMode(false); 3583 } 3584 3585 // If the key can be used for typing then leave touch mode 3586 // and select a focused view if needed (in ensureTouchMode). 3587 // Always allow the view to process the typing key. 3588 if (isTypingKey(event)) { 3589 ensureTouchMode(false); 3590 return false; 3591 } 3592 3593 return false; 3594 } 3595 3596 private void deliverKeyEvent(QueuedInputEvent q) { 3597 final KeyEvent event = (KeyEvent)q.mEvent; 3598 if (mInputEventConsistencyVerifier != null) { 3599 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3600 } 3601 3602 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3603 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3604 3605 // Perform predispatching before the IME. 3606 if (mView.dispatchKeyEventPreIme(event)) { 3607 finishInputEvent(q, true); 3608 return; 3609 } 3610 3611 // Dispatch to the IME before propagating down the view hierarchy. 3612 // The IME will eventually call back into handleImeFinishedEvent. 3613 if (mLastWasImTarget) { 3614 InputMethodManager imm = InputMethodManager.peekInstance(); 3615 if (imm != null) { 3616 final int seq = event.getSequenceNumber(); 3617 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3618 + seq + " event=" + event); 3619 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3620 return; 3621 } 3622 } 3623 } 3624 3625 // Not dispatching to IME, continue with post IME actions. 3626 deliverKeyEventPostIme(q); 3627 } 3628 3629 void handleImeFinishedEvent(int seq, boolean handled) { 3630 final QueuedInputEvent q = mCurrentInputEvent; 3631 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3632 if (DEBUG_IMF) { 3633 Log.v(TAG, "IME finished event: seq=" + seq 3634 + " handled=" + handled + " event=" + q); 3635 } 3636 if (handled) { 3637 finishInputEvent(q, true); 3638 } else { 3639 if (q.mEvent instanceof KeyEvent) { 3640 KeyEvent event = (KeyEvent)q.mEvent; 3641 if (event.getAction() != KeyEvent.ACTION_UP) { 3642 // If the window doesn't currently have input focus, then drop 3643 // this event. This could be an event that came back from the 3644 // IME dispatch but the window has lost focus in the meantime. 3645 if (!mAttachInfo.mHasWindowFocus) { 3646 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3647 finishInputEvent(q, true); 3648 return; 3649 } 3650 } 3651 deliverKeyEventPostIme(q); 3652 } else { 3653 MotionEvent event = (MotionEvent)q.mEvent; 3654 if (event.getAction() != MotionEvent.ACTION_CANCEL 3655 && event.getAction() != MotionEvent.ACTION_UP) { 3656 // If the window doesn't currently have input focus, then drop 3657 // this event. This could be an event that came back from the 3658 // IME dispatch but the window has lost focus in the meantime. 3659 if (!mAttachInfo.mHasWindowFocus) { 3660 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3661 finishInputEvent(q, true); 3662 return; 3663 } 3664 } 3665 final int source = q.mEvent.getSource(); 3666 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3667 deliverTrackballEventPostIme(q); 3668 } else { 3669 deliverGenericMotionEventPostIme(q); 3670 } 3671 } 3672 } 3673 } else { 3674 if (DEBUG_IMF) { 3675 Log.v(TAG, "IME finished event: seq=" + seq 3676 + " handled=" + handled + ", event not found!"); 3677 } 3678 } 3679 } 3680 3681 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3682 final KeyEvent event = (KeyEvent)q.mEvent; 3683 3684 // If the view went away, then the event will not be handled. 3685 if (mView == null || !mAdded) { 3686 finishInputEvent(q, false); 3687 return; 3688 } 3689 3690 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3691 if (checkForLeavingTouchModeAndConsume(event)) { 3692 finishInputEvent(q, true); 3693 return; 3694 } 3695 3696 // Make sure the fallback event policy sees all keys that will be delivered to the 3697 // view hierarchy. 3698 mFallbackEventHandler.preDispatchKeyEvent(event); 3699 3700 // Deliver the key to the view hierarchy. 3701 if (mView.dispatchKeyEvent(event)) { 3702 finishInputEvent(q, true); 3703 return; 3704 } 3705 3706 // If the Control modifier is held, try to interpret the key as a shortcut. 3707 if (event.getAction() == KeyEvent.ACTION_DOWN 3708 && event.isCtrlPressed() 3709 && event.getRepeatCount() == 0 3710 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3711 if (mView.dispatchKeyShortcutEvent(event)) { 3712 finishInputEvent(q, true); 3713 return; 3714 } 3715 } 3716 3717 // Apply the fallback event policy. 3718 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3719 finishInputEvent(q, true); 3720 return; 3721 } 3722 3723 // Handle automatic focus changes. 3724 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3725 int direction = 0; 3726 switch (event.getKeyCode()) { 3727 case KeyEvent.KEYCODE_DPAD_LEFT: 3728 if (event.hasNoModifiers()) { 3729 direction = View.FOCUS_LEFT; 3730 } 3731 break; 3732 case KeyEvent.KEYCODE_DPAD_RIGHT: 3733 if (event.hasNoModifiers()) { 3734 direction = View.FOCUS_RIGHT; 3735 } 3736 break; 3737 case KeyEvent.KEYCODE_DPAD_UP: 3738 if (event.hasNoModifiers()) { 3739 direction = View.FOCUS_UP; 3740 } 3741 break; 3742 case KeyEvent.KEYCODE_DPAD_DOWN: 3743 if (event.hasNoModifiers()) { 3744 direction = View.FOCUS_DOWN; 3745 } 3746 break; 3747 case KeyEvent.KEYCODE_TAB: 3748 if (event.hasNoModifiers()) { 3749 direction = View.FOCUS_FORWARD; 3750 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3751 direction = View.FOCUS_BACKWARD; 3752 } 3753 break; 3754 } 3755 if (direction != 0) { 3756 View focused = mView.findFocus(); 3757 if (focused != null) { 3758 View v = focused.focusSearch(direction); 3759 if (v != null && v != focused) { 3760 // do the math the get the interesting rect 3761 // of previous focused into the coord system of 3762 // newly focused view 3763 focused.getFocusedRect(mTempRect); 3764 if (mView instanceof ViewGroup) { 3765 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3766 focused, mTempRect); 3767 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3768 v, mTempRect); 3769 } 3770 if (v.requestFocus(direction, mTempRect)) { 3771 playSoundEffect(SoundEffectConstants 3772 .getContantForFocusDirection(direction)); 3773 finishInputEvent(q, true); 3774 return; 3775 } 3776 } 3777 3778 // Give the focused view a last chance to handle the dpad key. 3779 if (mView.dispatchUnhandledMove(focused, direction)) { 3780 finishInputEvent(q, true); 3781 return; 3782 } 3783 } 3784 } 3785 } 3786 3787 // Key was unhandled. 3788 finishInputEvent(q, false); 3789 } 3790 3791 /* drag/drop */ 3792 void setLocalDragState(Object obj) { 3793 mLocalDragState = obj; 3794 } 3795 3796 private void handleDragEvent(DragEvent event) { 3797 // From the root, only drag start/end/location are dispatched. entered/exited 3798 // are determined and dispatched by the viewgroup hierarchy, who then report 3799 // that back here for ultimate reporting back to the framework. 3800 if (mView != null && mAdded) { 3801 final int what = event.mAction; 3802 3803 if (what == DragEvent.ACTION_DRAG_EXITED) { 3804 // A direct EXITED event means that the window manager knows we've just crossed 3805 // a window boundary, so the current drag target within this one must have 3806 // just been exited. Send it the usual notifications and then we're done 3807 // for now. 3808 mView.dispatchDragEvent(event); 3809 } else { 3810 // Cache the drag description when the operation starts, then fill it in 3811 // on subsequent calls as a convenience 3812 if (what == DragEvent.ACTION_DRAG_STARTED) { 3813 mCurrentDragView = null; // Start the current-recipient tracking 3814 mDragDescription = event.mClipDescription; 3815 } else { 3816 event.mClipDescription = mDragDescription; 3817 } 3818 3819 // For events with a [screen] location, translate into window coordinates 3820 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3821 mDragPoint.set(event.mX, event.mY); 3822 if (mTranslator != null) { 3823 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3824 } 3825 3826 if (mCurScrollY != 0) { 3827 mDragPoint.offset(0, mCurScrollY); 3828 } 3829 3830 event.mX = mDragPoint.x; 3831 event.mY = mDragPoint.y; 3832 } 3833 3834 // Remember who the current drag target is pre-dispatch 3835 final View prevDragView = mCurrentDragView; 3836 3837 // Now dispatch the drag/drop event 3838 boolean result = mView.dispatchDragEvent(event); 3839 3840 // If we changed apparent drag target, tell the OS about it 3841 if (prevDragView != mCurrentDragView) { 3842 try { 3843 if (prevDragView != null) { 3844 mWindowSession.dragRecipientExited(mWindow); 3845 } 3846 if (mCurrentDragView != null) { 3847 mWindowSession.dragRecipientEntered(mWindow); 3848 } 3849 } catch (RemoteException e) { 3850 Slog.e(TAG, "Unable to note drag target change"); 3851 } 3852 } 3853 3854 // Report the drop result when we're done 3855 if (what == DragEvent.ACTION_DROP) { 3856 mDragDescription = null; 3857 try { 3858 Log.i(TAG, "Reporting drop result: " + result); 3859 mWindowSession.reportDropResult(mWindow, result); 3860 } catch (RemoteException e) { 3861 Log.e(TAG, "Unable to report drop result"); 3862 } 3863 } 3864 3865 // When the drag operation ends, release any local state object 3866 // that may have been in use 3867 if (what == DragEvent.ACTION_DRAG_ENDED) { 3868 setLocalDragState(null); 3869 } 3870 } 3871 } 3872 event.recycle(); 3873 } 3874 3875 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3876 if (mSeq != args.seq) { 3877 // The sequence has changed, so we need to update our value and make 3878 // sure to do a traversal afterward so the window manager is given our 3879 // most recent data. 3880 mSeq = args.seq; 3881 mAttachInfo.mForceReportNewAttributes = true; 3882 scheduleTraversals(); 3883 } 3884 if (mView == null) return; 3885 if (args.localChanges != 0) { 3886 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3887 } 3888 if (mAttachInfo != null) { 3889 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3890 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3891 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3892 mView.dispatchSystemUiVisibilityChanged(visibility); 3893 } 3894 } 3895 } 3896 3897 public void handleDispatchDoneAnimating() { 3898 if (mWindowsAnimating) { 3899 mWindowsAnimating = false; 3900 if (!mDirty.isEmpty() || mIsAnimating) { 3901 scheduleTraversals(); 3902 } 3903 } 3904 } 3905 3906 public void getLastTouchPoint(Point outLocation) { 3907 outLocation.x = (int) mLastTouchPoint.x; 3908 outLocation.y = (int) mLastTouchPoint.y; 3909 } 3910 3911 public void setDragFocus(View newDragTarget) { 3912 if (mCurrentDragView != newDragTarget) { 3913 mCurrentDragView = newDragTarget; 3914 } 3915 } 3916 3917 private AudioManager getAudioManager() { 3918 if (mView == null) { 3919 throw new IllegalStateException("getAudioManager called when there is no mView"); 3920 } 3921 if (mAudioManager == null) { 3922 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3923 } 3924 return mAudioManager; 3925 } 3926 3927 public AccessibilityInteractionController getAccessibilityInteractionController() { 3928 if (mView == null) { 3929 throw new IllegalStateException("getAccessibilityInteractionController" 3930 + " called when there is no mView"); 3931 } 3932 if (mAccessibilityInteractionController == null) { 3933 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3934 } 3935 return mAccessibilityInteractionController; 3936 } 3937 3938 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3939 boolean insetsPending) throws RemoteException { 3940 3941 float appScale = mAttachInfo.mApplicationScale; 3942 boolean restore = false; 3943 if (params != null && mTranslator != null) { 3944 restore = true; 3945 params.backup(); 3946 mTranslator.translateWindowLayout(params); 3947 } 3948 if (params != null) { 3949 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3950 } 3951 mPendingConfiguration.seq = 0; 3952 //Log.d(TAG, ">>>>>> CALLING relayout"); 3953 if (params != null && mOrigWindowType != params.type) { 3954 // For compatibility with old apps, don't crash here. 3955 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3956 Slog.w(TAG, "Window type can not be changed after " 3957 + "the window is added; ignoring change of " + mView); 3958 params.type = mOrigWindowType; 3959 } 3960 } 3961 int relayoutResult = mWindowSession.relayout( 3962 mWindow, mSeq, params, 3963 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3964 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3965 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 3966 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3967 mPendingConfiguration, mSurface); 3968 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3969 if (restore) { 3970 params.restore(); 3971 } 3972 3973 if (mTranslator != null) { 3974 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3975 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3976 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3977 } 3978 return relayoutResult; 3979 } 3980 3981 /** 3982 * {@inheritDoc} 3983 */ 3984 public void playSoundEffect(int effectId) { 3985 checkThread(); 3986 3987 try { 3988 final AudioManager audioManager = getAudioManager(); 3989 3990 switch (effectId) { 3991 case SoundEffectConstants.CLICK: 3992 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3993 return; 3994 case SoundEffectConstants.NAVIGATION_DOWN: 3995 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3996 return; 3997 case SoundEffectConstants.NAVIGATION_LEFT: 3998 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3999 return; 4000 case SoundEffectConstants.NAVIGATION_RIGHT: 4001 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4002 return; 4003 case SoundEffectConstants.NAVIGATION_UP: 4004 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4005 return; 4006 default: 4007 throw new IllegalArgumentException("unknown effect id " + effectId + 4008 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4009 } 4010 } catch (IllegalStateException e) { 4011 // Exception thrown by getAudioManager() when mView is null 4012 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4013 e.printStackTrace(); 4014 } 4015 } 4016 4017 /** 4018 * {@inheritDoc} 4019 */ 4020 public boolean performHapticFeedback(int effectId, boolean always) { 4021 try { 4022 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4023 } catch (RemoteException e) { 4024 return false; 4025 } 4026 } 4027 4028 /** 4029 * {@inheritDoc} 4030 */ 4031 public View focusSearch(View focused, int direction) { 4032 checkThread(); 4033 if (!(mView instanceof ViewGroup)) { 4034 return null; 4035 } 4036 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4037 } 4038 4039 public void debug() { 4040 mView.debug(); 4041 } 4042 4043 public void dumpGfxInfo(int[] info) { 4044 info[0] = info[1] = 0; 4045 if (mView != null) { 4046 getGfxInfo(mView, info); 4047 } 4048 } 4049 4050 private static void getGfxInfo(View view, int[] info) { 4051 DisplayList displayList = view.mDisplayList; 4052 info[0]++; 4053 if (displayList != null) { 4054 info[1] += displayList.getSize(); 4055 } 4056 4057 if (view instanceof ViewGroup) { 4058 ViewGroup group = (ViewGroup) view; 4059 4060 int count = group.getChildCount(); 4061 for (int i = 0; i < count; i++) { 4062 getGfxInfo(group.getChildAt(i), info); 4063 } 4064 } 4065 } 4066 4067 public void die(boolean immediate) { 4068 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4069 // done by dispatchDetachedFromWindow will cause havoc on return. 4070 if (immediate && !mIsInTraversal) { 4071 doDie(); 4072 } else { 4073 if (!mIsDrawing) { 4074 destroyHardwareRenderer(); 4075 } else { 4076 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4077 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4078 } 4079 mHandler.sendEmptyMessage(MSG_DIE); 4080 } 4081 } 4082 4083 void doDie() { 4084 checkThread(); 4085 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4086 synchronized (this) { 4087 if (mAdded) { 4088 dispatchDetachedFromWindow(); 4089 } 4090 4091 if (mAdded && !mFirst) { 4092 destroyHardwareRenderer(); 4093 4094 if (mView != null) { 4095 int viewVisibility = mView.getVisibility(); 4096 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4097 if (mWindowAttributesChanged || viewVisibilityChanged) { 4098 // If layout params have been changed, first give them 4099 // to the window manager to make sure it has the correct 4100 // animation info. 4101 try { 4102 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4103 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4104 mWindowSession.finishDrawing(mWindow); 4105 } 4106 } catch (RemoteException e) { 4107 } 4108 } 4109 4110 mSurface.release(); 4111 } 4112 } 4113 4114 mAdded = false; 4115 } 4116 } 4117 4118 public void requestUpdateConfiguration(Configuration config) { 4119 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4120 mHandler.sendMessage(msg); 4121 } 4122 4123 public void loadSystemProperties() { 4124 boolean layout = SystemProperties.getBoolean( 4125 View.DEBUG_LAYOUT_PROPERTY, false); 4126 if (layout != mAttachInfo.mDebugLayout) { 4127 mAttachInfo.mDebugLayout = layout; 4128 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4129 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4130 } 4131 } 4132 } 4133 4134 private void destroyHardwareRenderer() { 4135 AttachInfo attachInfo = mAttachInfo; 4136 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4137 4138 if (hardwareRenderer != null) { 4139 if (mView != null) { 4140 hardwareRenderer.destroyHardwareResources(mView); 4141 } 4142 hardwareRenderer.destroy(true); 4143 hardwareRenderer.setRequested(false); 4144 4145 attachInfo.mHardwareRenderer = null; 4146 attachInfo.mHardwareAccelerated = false; 4147 } 4148 } 4149 4150 void dispatchImeFinishedEvent(int seq, boolean handled) { 4151 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4152 msg.arg1 = seq; 4153 msg.arg2 = handled ? 1 : 0; 4154 msg.setAsynchronous(true); 4155 mHandler.sendMessage(msg); 4156 } 4157 4158 public void dispatchFinishInputConnection(InputConnection connection) { 4159 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4160 mHandler.sendMessage(msg); 4161 } 4162 4163 public void dispatchResized(Rect frame, Rect contentInsets, 4164 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4165 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4166 + " contentInsets=" + contentInsets.toShortString() 4167 + " visibleInsets=" + visibleInsets.toShortString() 4168 + " reportDraw=" + reportDraw); 4169 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4170 if (mTranslator != null) { 4171 mTranslator.translateRectInScreenToAppWindow(frame); 4172 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4173 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4174 } 4175 SomeArgs args = SomeArgs.obtain(); 4176 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4177 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4178 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4179 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4180 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4181 msg.obj = args; 4182 mHandler.sendMessage(msg); 4183 } 4184 4185 public void dispatchMoved(int newX, int newY) { 4186 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4187 if (mTranslator != null) { 4188 PointF point = new PointF(newX, newY); 4189 mTranslator.translatePointInScreenToAppWindow(point); 4190 newX = (int) (point.x + 0.5); 4191 newY = (int) (point.y + 0.5); 4192 } 4193 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4194 mHandler.sendMessage(msg); 4195 } 4196 4197 /** 4198 * Represents a pending input event that is waiting in a queue. 4199 * 4200 * Input events are processed in serial order by the timestamp specified by 4201 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4202 * one input event to the application at a time and waits for the application 4203 * to finish handling it before delivering the next one. 4204 * 4205 * However, because the application or IME can synthesize and inject multiple 4206 * key events at a time without going through the input dispatcher, we end up 4207 * needing a queue on the application's side. 4208 */ 4209 private static final class QueuedInputEvent { 4210 public static final int FLAG_DELIVER_POST_IME = 1; 4211 4212 public QueuedInputEvent mNext; 4213 4214 public InputEvent mEvent; 4215 public InputEventReceiver mReceiver; 4216 public int mFlags; 4217 } 4218 4219 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4220 InputEventReceiver receiver, int flags) { 4221 QueuedInputEvent q = mQueuedInputEventPool; 4222 if (q != null) { 4223 mQueuedInputEventPoolSize -= 1; 4224 mQueuedInputEventPool = q.mNext; 4225 q.mNext = null; 4226 } else { 4227 q = new QueuedInputEvent(); 4228 } 4229 4230 q.mEvent = event; 4231 q.mReceiver = receiver; 4232 q.mFlags = flags; 4233 return q; 4234 } 4235 4236 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4237 q.mEvent = null; 4238 q.mReceiver = null; 4239 4240 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4241 mQueuedInputEventPoolSize += 1; 4242 q.mNext = mQueuedInputEventPool; 4243 mQueuedInputEventPool = q; 4244 } 4245 } 4246 4247 void enqueueInputEvent(InputEvent event) { 4248 enqueueInputEvent(event, null, 0, false); 4249 } 4250 4251 void enqueueInputEvent(InputEvent event, 4252 InputEventReceiver receiver, int flags, boolean processImmediately) { 4253 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4254 4255 // Always enqueue the input event in order, regardless of its time stamp. 4256 // We do this because the application or the IME may inject key events 4257 // in response to touch events and we want to ensure that the injected keys 4258 // are processed in the order they were received and we cannot trust that 4259 // the time stamp of injected events are monotonic. 4260 QueuedInputEvent last = mFirstPendingInputEvent; 4261 if (last == null) { 4262 mFirstPendingInputEvent = q; 4263 } else { 4264 while (last.mNext != null) { 4265 last = last.mNext; 4266 } 4267 last.mNext = q; 4268 } 4269 4270 if (processImmediately) { 4271 doProcessInputEvents(); 4272 } else { 4273 scheduleProcessInputEvents(); 4274 } 4275 } 4276 4277 private void scheduleProcessInputEvents() { 4278 if (!mProcessInputEventsScheduled) { 4279 mProcessInputEventsScheduled = true; 4280 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4281 msg.setAsynchronous(true); 4282 mHandler.sendMessage(msg); 4283 } 4284 } 4285 4286 void doProcessInputEvents() { 4287 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4288 QueuedInputEvent q = mFirstPendingInputEvent; 4289 mFirstPendingInputEvent = q.mNext; 4290 q.mNext = null; 4291 mCurrentInputEvent = q; 4292 deliverInputEvent(q); 4293 } 4294 4295 // We are done processing all input events that we can process right now 4296 // so we can clear the pending flag immediately. 4297 if (mProcessInputEventsScheduled) { 4298 mProcessInputEventsScheduled = false; 4299 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4300 } 4301 } 4302 4303 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4304 if (q != mCurrentInputEvent) { 4305 throw new IllegalStateException("finished input event out of order"); 4306 } 4307 4308 if (q.mReceiver != null) { 4309 q.mReceiver.finishInputEvent(q.mEvent, handled); 4310 } else { 4311 q.mEvent.recycleIfNeededAfterDispatch(); 4312 } 4313 4314 recycleQueuedInputEvent(q); 4315 4316 mCurrentInputEvent = null; 4317 if (mFirstPendingInputEvent != null) { 4318 scheduleProcessInputEvents(); 4319 } 4320 } 4321 4322 void scheduleConsumeBatchedInput() { 4323 if (!mConsumeBatchedInputScheduled) { 4324 mConsumeBatchedInputScheduled = true; 4325 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4326 mConsumedBatchedInputRunnable, null); 4327 } 4328 } 4329 4330 void unscheduleConsumeBatchedInput() { 4331 if (mConsumeBatchedInputScheduled) { 4332 mConsumeBatchedInputScheduled = false; 4333 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4334 mConsumedBatchedInputRunnable, null); 4335 } 4336 } 4337 4338 void doConsumeBatchedInput(long frameTimeNanos) { 4339 if (mConsumeBatchedInputScheduled) { 4340 mConsumeBatchedInputScheduled = false; 4341 if (mInputEventReceiver != null) { 4342 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4343 } 4344 doProcessInputEvents(); 4345 } 4346 } 4347 4348 final class TraversalRunnable implements Runnable { 4349 @Override 4350 public void run() { 4351 doTraversal(); 4352 } 4353 } 4354 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4355 4356 final class WindowInputEventReceiver extends InputEventReceiver { 4357 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4358 super(inputChannel, looper); 4359 } 4360 4361 @Override 4362 public void onInputEvent(InputEvent event) { 4363 enqueueInputEvent(event, this, 0, true); 4364 } 4365 4366 @Override 4367 public void onBatchedInputEventPending() { 4368 scheduleConsumeBatchedInput(); 4369 } 4370 4371 @Override 4372 public void dispose() { 4373 unscheduleConsumeBatchedInput(); 4374 super.dispose(); 4375 } 4376 } 4377 WindowInputEventReceiver mInputEventReceiver; 4378 4379 final class ConsumeBatchedInputRunnable implements Runnable { 4380 @Override 4381 public void run() { 4382 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4383 } 4384 } 4385 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4386 new ConsumeBatchedInputRunnable(); 4387 boolean mConsumeBatchedInputScheduled; 4388 4389 final class InvalidateOnAnimationRunnable implements Runnable { 4390 private boolean mPosted; 4391 private ArrayList<View> mViews = new ArrayList<View>(); 4392 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4393 new ArrayList<AttachInfo.InvalidateInfo>(); 4394 private View[] mTempViews; 4395 private AttachInfo.InvalidateInfo[] mTempViewRects; 4396 4397 public void addView(View view) { 4398 synchronized (this) { 4399 mViews.add(view); 4400 postIfNeededLocked(); 4401 } 4402 } 4403 4404 public void addViewRect(AttachInfo.InvalidateInfo info) { 4405 synchronized (this) { 4406 mViewRects.add(info); 4407 postIfNeededLocked(); 4408 } 4409 } 4410 4411 public void removeView(View view) { 4412 synchronized (this) { 4413 mViews.remove(view); 4414 4415 for (int i = mViewRects.size(); i-- > 0; ) { 4416 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4417 if (info.target == view) { 4418 mViewRects.remove(i); 4419 info.release(); 4420 } 4421 } 4422 4423 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4424 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4425 mPosted = false; 4426 } 4427 } 4428 } 4429 4430 @Override 4431 public void run() { 4432 final int viewCount; 4433 final int viewRectCount; 4434 synchronized (this) { 4435 mPosted = false; 4436 4437 viewCount = mViews.size(); 4438 if (viewCount != 0) { 4439 mTempViews = mViews.toArray(mTempViews != null 4440 ? mTempViews : new View[viewCount]); 4441 mViews.clear(); 4442 } 4443 4444 viewRectCount = mViewRects.size(); 4445 if (viewRectCount != 0) { 4446 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4447 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4448 mViewRects.clear(); 4449 } 4450 } 4451 4452 for (int i = 0; i < viewCount; i++) { 4453 mTempViews[i].invalidate(); 4454 mTempViews[i] = null; 4455 } 4456 4457 for (int i = 0; i < viewRectCount; i++) { 4458 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4459 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4460 info.release(); 4461 } 4462 } 4463 4464 private void postIfNeededLocked() { 4465 if (!mPosted) { 4466 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4467 mPosted = true; 4468 } 4469 } 4470 } 4471 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4472 new InvalidateOnAnimationRunnable(); 4473 4474 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4475 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4476 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4477 } 4478 4479 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4480 long delayMilliseconds) { 4481 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4482 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4483 } 4484 4485 public void dispatchInvalidateOnAnimation(View view) { 4486 mInvalidateOnAnimationRunnable.addView(view); 4487 } 4488 4489 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4490 mInvalidateOnAnimationRunnable.addViewRect(info); 4491 } 4492 4493 public void enqueueDisplayList(DisplayList displayList) { 4494 mDisplayLists.add(displayList); 4495 4496 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4497 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4498 mHandler.sendMessage(msg); 4499 } 4500 4501 public void dequeueDisplayList(DisplayList displayList) { 4502 if (mDisplayLists.remove(displayList)) { 4503 displayList.invalidate(); 4504 if (mDisplayLists.size() == 0) { 4505 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4506 } 4507 } 4508 } 4509 4510 public void cancelInvalidate(View view) { 4511 mHandler.removeMessages(MSG_INVALIDATE, view); 4512 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4513 // them to the pool 4514 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4515 mInvalidateOnAnimationRunnable.removeView(view); 4516 } 4517 4518 public void dispatchKey(KeyEvent event) { 4519 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4520 msg.setAsynchronous(true); 4521 mHandler.sendMessage(msg); 4522 } 4523 4524 public void dispatchKeyFromIme(KeyEvent event) { 4525 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4526 msg.setAsynchronous(true); 4527 mHandler.sendMessage(msg); 4528 } 4529 4530 public void dispatchUnhandledKey(KeyEvent event) { 4531 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4532 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4533 final int keyCode = event.getKeyCode(); 4534 final int metaState = event.getMetaState(); 4535 4536 // Check for fallback actions specified by the key character map. 4537 KeyCharacterMap.FallbackAction fallbackAction = 4538 kcm.getFallbackAction(keyCode, metaState); 4539 if (fallbackAction != null) { 4540 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4541 KeyEvent fallbackEvent = KeyEvent.obtain( 4542 event.getDownTime(), event.getEventTime(), 4543 event.getAction(), fallbackAction.keyCode, 4544 event.getRepeatCount(), fallbackAction.metaState, 4545 event.getDeviceId(), event.getScanCode(), 4546 flags, event.getSource(), null); 4547 fallbackAction.recycle(); 4548 4549 dispatchKey(fallbackEvent); 4550 } 4551 } 4552 } 4553 4554 public void dispatchAppVisibility(boolean visible) { 4555 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4556 msg.arg1 = visible ? 1 : 0; 4557 mHandler.sendMessage(msg); 4558 } 4559 4560 public void dispatchScreenStateChange(boolean on) { 4561 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4562 msg.arg1 = on ? 1 : 0; 4563 mHandler.sendMessage(msg); 4564 } 4565 4566 public void dispatchGetNewSurface() { 4567 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4568 mHandler.sendMessage(msg); 4569 } 4570 4571 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4572 Message msg = Message.obtain(); 4573 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4574 msg.arg1 = hasFocus ? 1 : 0; 4575 msg.arg2 = inTouchMode ? 1 : 0; 4576 mHandler.sendMessage(msg); 4577 } 4578 4579 public void dispatchCloseSystemDialogs(String reason) { 4580 Message msg = Message.obtain(); 4581 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4582 msg.obj = reason; 4583 mHandler.sendMessage(msg); 4584 } 4585 4586 public void dispatchDragEvent(DragEvent event) { 4587 final int what; 4588 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4589 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4590 mHandler.removeMessages(what); 4591 } else { 4592 what = MSG_DISPATCH_DRAG_EVENT; 4593 } 4594 Message msg = mHandler.obtainMessage(what, event); 4595 mHandler.sendMessage(msg); 4596 } 4597 4598 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4599 int localValue, int localChanges) { 4600 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4601 args.seq = seq; 4602 args.globalVisibility = globalVisibility; 4603 args.localValue = localValue; 4604 args.localChanges = localChanges; 4605 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4606 } 4607 4608 public void dispatchDoneAnimating() { 4609 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4610 } 4611 4612 public void dispatchCheckFocus() { 4613 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4614 // This will result in a call to checkFocus() below. 4615 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4616 } 4617 } 4618 4619 /** 4620 * Post a callback to send a 4621 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4622 * This event is send at most once every 4623 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4624 */ 4625 private void postSendWindowContentChangedCallback(View source) { 4626 if (mSendWindowContentChangedAccessibilityEvent == null) { 4627 mSendWindowContentChangedAccessibilityEvent = 4628 new SendWindowContentChangedAccessibilityEvent(); 4629 } 4630 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4631 if (oldSource == null) { 4632 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4633 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4634 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4635 } else { 4636 mSendWindowContentChangedAccessibilityEvent.mSource = 4637 getCommonPredecessor(oldSource, source); 4638 } 4639 } 4640 4641 /** 4642 * Remove a posted callback to send a 4643 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4644 */ 4645 private void removeSendWindowContentChangedCallback() { 4646 if (mSendWindowContentChangedAccessibilityEvent != null) { 4647 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4648 } 4649 } 4650 4651 public boolean showContextMenuForChild(View originalView) { 4652 return false; 4653 } 4654 4655 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4656 return null; 4657 } 4658 4659 public void createContextMenu(ContextMenu menu) { 4660 } 4661 4662 public void childDrawableStateChanged(View child) { 4663 } 4664 4665 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4666 if (mView == null) { 4667 return false; 4668 } 4669 // Intercept accessibility focus events fired by virtual nodes to keep 4670 // track of accessibility focus position in such nodes. 4671 final int eventType = event.getEventType(); 4672 switch (eventType) { 4673 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4674 final long sourceNodeId = event.getSourceNodeId(); 4675 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4676 sourceNodeId); 4677 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4678 if (source != null) { 4679 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4680 if (provider != null) { 4681 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4682 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4683 setAccessibilityFocus(source, node); 4684 } 4685 } 4686 } break; 4687 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4688 final long sourceNodeId = event.getSourceNodeId(); 4689 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4690 sourceNodeId); 4691 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4692 if (source != null) { 4693 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4694 if (provider != null) { 4695 setAccessibilityFocus(null, null); 4696 } 4697 } 4698 } break; 4699 } 4700 mAccessibilityManager.sendAccessibilityEvent(event); 4701 return true; 4702 } 4703 4704 @Override 4705 public void childAccessibilityStateChanged(View child) { 4706 postSendWindowContentChangedCallback(child); 4707 } 4708 4709 private View getCommonPredecessor(View first, View second) { 4710 if (mAttachInfo != null) { 4711 if (mTempHashSet == null) { 4712 mTempHashSet = new HashSet<View>(); 4713 } 4714 HashSet<View> seen = mTempHashSet; 4715 seen.clear(); 4716 View firstCurrent = first; 4717 while (firstCurrent != null) { 4718 seen.add(firstCurrent); 4719 ViewParent firstCurrentParent = firstCurrent.mParent; 4720 if (firstCurrentParent instanceof View) { 4721 firstCurrent = (View) firstCurrentParent; 4722 } else { 4723 firstCurrent = null; 4724 } 4725 } 4726 View secondCurrent = second; 4727 while (secondCurrent != null) { 4728 if (seen.contains(secondCurrent)) { 4729 seen.clear(); 4730 return secondCurrent; 4731 } 4732 ViewParent secondCurrentParent = secondCurrent.mParent; 4733 if (secondCurrentParent instanceof View) { 4734 secondCurrent = (View) secondCurrentParent; 4735 } else { 4736 secondCurrent = null; 4737 } 4738 } 4739 seen.clear(); 4740 } 4741 return null; 4742 } 4743 4744 void checkThread() { 4745 if (mThread != Thread.currentThread()) { 4746 throw new CalledFromWrongThreadException( 4747 "Only the original thread that created a view hierarchy can touch its views."); 4748 } 4749 } 4750 4751 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4752 // ViewAncestor never intercepts touch event, so this can be a no-op 4753 } 4754 4755 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4756 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4757 if (rectangle != null) { 4758 mTempRect.set(rectangle); 4759 mTempRect.offset(0, -mCurScrollY); 4760 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4761 try { 4762 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4763 } catch (RemoteException re) { 4764 /* ignore */ 4765 } 4766 } 4767 return scrolled; 4768 } 4769 4770 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4771 // Do nothing. 4772 } 4773 4774 class TakenSurfaceHolder extends BaseSurfaceHolder { 4775 @Override 4776 public boolean onAllowLockCanvas() { 4777 return mDrawingAllowed; 4778 } 4779 4780 @Override 4781 public void onRelayoutContainer() { 4782 // Not currently interesting -- from changing between fixed and layout size. 4783 } 4784 4785 public void setFormat(int format) { 4786 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4787 } 4788 4789 public void setType(int type) { 4790 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4791 } 4792 4793 @Override 4794 public void onUpdateSurface() { 4795 // We take care of format and type changes on our own. 4796 throw new IllegalStateException("Shouldn't be here"); 4797 } 4798 4799 public boolean isCreating() { 4800 return mIsCreating; 4801 } 4802 4803 @Override 4804 public void setFixedSize(int width, int height) { 4805 throw new UnsupportedOperationException( 4806 "Currently only support sizing from layout"); 4807 } 4808 4809 public void setKeepScreenOn(boolean screenOn) { 4810 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4811 } 4812 } 4813 4814 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4815 private WeakReference<ViewRootImpl> mViewAncestor; 4816 4817 public InputMethodCallback(ViewRootImpl viewAncestor) { 4818 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4819 } 4820 4821 @Override 4822 public void finishedEvent(int seq, boolean handled) { 4823 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4824 if (viewAncestor != null) { 4825 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4826 } 4827 } 4828 } 4829 4830 static class W extends IWindow.Stub { 4831 private final WeakReference<ViewRootImpl> mViewAncestor; 4832 private final IWindowSession mWindowSession; 4833 4834 W(ViewRootImpl viewAncestor) { 4835 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4836 mWindowSession = viewAncestor.mWindowSession; 4837 } 4838 4839 public void resized(Rect frame, Rect contentInsets, 4840 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4841 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4842 if (viewAncestor != null) { 4843 viewAncestor.dispatchResized(frame, contentInsets, 4844 visibleInsets, reportDraw, newConfig); 4845 } 4846 } 4847 4848 @Override 4849 public void moved(int newX, int newY) { 4850 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4851 if (viewAncestor != null) { 4852 viewAncestor.dispatchMoved(newX, newY); 4853 } 4854 } 4855 4856 public void dispatchAppVisibility(boolean visible) { 4857 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4858 if (viewAncestor != null) { 4859 viewAncestor.dispatchAppVisibility(visible); 4860 } 4861 } 4862 4863 public void dispatchScreenState(boolean on) { 4864 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4865 if (viewAncestor != null) { 4866 viewAncestor.dispatchScreenStateChange(on); 4867 } 4868 } 4869 4870 public void dispatchGetNewSurface() { 4871 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4872 if (viewAncestor != null) { 4873 viewAncestor.dispatchGetNewSurface(); 4874 } 4875 } 4876 4877 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4878 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4879 if (viewAncestor != null) { 4880 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4881 } 4882 } 4883 4884 private static int checkCallingPermission(String permission) { 4885 try { 4886 return ActivityManagerNative.getDefault().checkPermission( 4887 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4888 } catch (RemoteException e) { 4889 return PackageManager.PERMISSION_DENIED; 4890 } 4891 } 4892 4893 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4894 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4895 if (viewAncestor != null) { 4896 final View view = viewAncestor.mView; 4897 if (view != null) { 4898 if (checkCallingPermission(Manifest.permission.DUMP) != 4899 PackageManager.PERMISSION_GRANTED) { 4900 throw new SecurityException("Insufficient permissions to invoke" 4901 + " executeCommand() from pid=" + Binder.getCallingPid() 4902 + ", uid=" + Binder.getCallingUid()); 4903 } 4904 4905 OutputStream clientStream = null; 4906 try { 4907 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4908 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4909 } catch (IOException e) { 4910 e.printStackTrace(); 4911 } finally { 4912 if (clientStream != null) { 4913 try { 4914 clientStream.close(); 4915 } catch (IOException e) { 4916 e.printStackTrace(); 4917 } 4918 } 4919 } 4920 } 4921 } 4922 } 4923 4924 public void closeSystemDialogs(String reason) { 4925 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4926 if (viewAncestor != null) { 4927 viewAncestor.dispatchCloseSystemDialogs(reason); 4928 } 4929 } 4930 4931 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4932 boolean sync) { 4933 if (sync) { 4934 try { 4935 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4936 } catch (RemoteException e) { 4937 } 4938 } 4939 } 4940 4941 public void dispatchWallpaperCommand(String action, int x, int y, 4942 int z, Bundle extras, boolean sync) { 4943 if (sync) { 4944 try { 4945 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4946 } catch (RemoteException e) { 4947 } 4948 } 4949 } 4950 4951 /* Drag/drop */ 4952 public void dispatchDragEvent(DragEvent event) { 4953 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4954 if (viewAncestor != null) { 4955 viewAncestor.dispatchDragEvent(event); 4956 } 4957 } 4958 4959 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4960 int localValue, int localChanges) { 4961 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4962 if (viewAncestor != null) { 4963 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4964 localValue, localChanges); 4965 } 4966 } 4967 4968 public void doneAnimating() { 4969 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4970 if (viewAncestor != null) { 4971 viewAncestor.dispatchDoneAnimating(); 4972 } 4973 } 4974 } 4975 4976 /** 4977 * Maintains state information for a single trackball axis, generating 4978 * discrete (DPAD) movements based on raw trackball motion. 4979 */ 4980 static final class TrackballAxis { 4981 /** 4982 * The maximum amount of acceleration we will apply. 4983 */ 4984 static final float MAX_ACCELERATION = 20; 4985 4986 /** 4987 * The maximum amount of time (in milliseconds) between events in order 4988 * for us to consider the user to be doing fast trackball movements, 4989 * and thus apply an acceleration. 4990 */ 4991 static final long FAST_MOVE_TIME = 150; 4992 4993 /** 4994 * Scaling factor to the time (in milliseconds) between events to how 4995 * much to multiple/divide the current acceleration. When movement 4996 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4997 * FAST_MOVE_TIME it divides it. 4998 */ 4999 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5000 5001 float position; 5002 float absPosition; 5003 float acceleration = 1; 5004 long lastMoveTime = 0; 5005 int step; 5006 int dir; 5007 int nonAccelMovement; 5008 5009 void reset(int _step) { 5010 position = 0; 5011 acceleration = 1; 5012 lastMoveTime = 0; 5013 step = _step; 5014 dir = 0; 5015 } 5016 5017 /** 5018 * Add trackball movement into the state. If the direction of movement 5019 * has been reversed, the state is reset before adding the 5020 * movement (so that you don't have to compensate for any previously 5021 * collected movement before see the result of the movement in the 5022 * new direction). 5023 * 5024 * @return Returns the absolute value of the amount of movement 5025 * collected so far. 5026 */ 5027 float collect(float off, long time, String axis) { 5028 long normTime; 5029 if (off > 0) { 5030 normTime = (long)(off * FAST_MOVE_TIME); 5031 if (dir < 0) { 5032 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5033 position = 0; 5034 step = 0; 5035 acceleration = 1; 5036 lastMoveTime = 0; 5037 } 5038 dir = 1; 5039 } else if (off < 0) { 5040 normTime = (long)((-off) * FAST_MOVE_TIME); 5041 if (dir > 0) { 5042 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5043 position = 0; 5044 step = 0; 5045 acceleration = 1; 5046 lastMoveTime = 0; 5047 } 5048 dir = -1; 5049 } else { 5050 normTime = 0; 5051 } 5052 5053 // The number of milliseconds between each movement that is 5054 // considered "normal" and will not result in any acceleration 5055 // or deceleration, scaled by the offset we have here. 5056 if (normTime > 0) { 5057 long delta = time - lastMoveTime; 5058 lastMoveTime = time; 5059 float acc = acceleration; 5060 if (delta < normTime) { 5061 // The user is scrolling rapidly, so increase acceleration. 5062 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5063 if (scale > 1) acc *= scale; 5064 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5065 + off + " normTime=" + normTime + " delta=" + delta 5066 + " scale=" + scale + " acc=" + acc); 5067 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5068 } else { 5069 // The user is scrolling slowly, so decrease acceleration. 5070 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5071 if (scale > 1) acc /= scale; 5072 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5073 + off + " normTime=" + normTime + " delta=" + delta 5074 + " scale=" + scale + " acc=" + acc); 5075 acceleration = acc > 1 ? acc : 1; 5076 } 5077 } 5078 position += off; 5079 return (absPosition = Math.abs(position)); 5080 } 5081 5082 /** 5083 * Generate the number of discrete movement events appropriate for 5084 * the currently collected trackball movement. 5085 * 5086 * @param precision The minimum movement required to generate the 5087 * first discrete movement. 5088 * 5089 * @return Returns the number of discrete movements, either positive 5090 * or negative, or 0 if there is not enough trackball movement yet 5091 * for a discrete movement. 5092 */ 5093 int generate(float precision) { 5094 int movement = 0; 5095 nonAccelMovement = 0; 5096 do { 5097 final int dir = position >= 0 ? 1 : -1; 5098 switch (step) { 5099 // If we are going to execute the first step, then we want 5100 // to do this as soon as possible instead of waiting for 5101 // a full movement, in order to make things look responsive. 5102 case 0: 5103 if (absPosition < precision) { 5104 return movement; 5105 } 5106 movement += dir; 5107 nonAccelMovement += dir; 5108 step = 1; 5109 break; 5110 // If we have generated the first movement, then we need 5111 // to wait for the second complete trackball motion before 5112 // generating the second discrete movement. 5113 case 1: 5114 if (absPosition < 2) { 5115 return movement; 5116 } 5117 movement += dir; 5118 nonAccelMovement += dir; 5119 position += dir > 0 ? -2 : 2; 5120 absPosition = Math.abs(position); 5121 step = 2; 5122 break; 5123 // After the first two, we generate discrete movements 5124 // consistently with the trackball, applying an acceleration 5125 // if the trackball is moving quickly. This is a simple 5126 // acceleration on top of what we already compute based 5127 // on how quickly the wheel is being turned, to apply 5128 // a longer increasing acceleration to continuous movement 5129 // in one direction. 5130 default: 5131 if (absPosition < 1) { 5132 return movement; 5133 } 5134 movement += dir; 5135 position += dir >= 0 ? -1 : 1; 5136 absPosition = Math.abs(position); 5137 float acc = acceleration; 5138 acc *= 1.1f; 5139 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5140 break; 5141 } 5142 } while (true); 5143 } 5144 } 5145 5146 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5147 public CalledFromWrongThreadException(String msg) { 5148 super(msg); 5149 } 5150 } 5151 5152 private SurfaceHolder mHolder = new SurfaceHolder() { 5153 // we only need a SurfaceHolder for opengl. it would be nice 5154 // to implement everything else though, especially the callback 5155 // support (opengl doesn't make use of it right now, but eventually 5156 // will). 5157 public Surface getSurface() { 5158 return mSurface; 5159 } 5160 5161 public boolean isCreating() { 5162 return false; 5163 } 5164 5165 public void addCallback(Callback callback) { 5166 } 5167 5168 public void removeCallback(Callback callback) { 5169 } 5170 5171 public void setFixedSize(int width, int height) { 5172 } 5173 5174 public void setSizeFromLayout() { 5175 } 5176 5177 public void setFormat(int format) { 5178 } 5179 5180 public void setType(int type) { 5181 } 5182 5183 public void setKeepScreenOn(boolean screenOn) { 5184 } 5185 5186 public Canvas lockCanvas() { 5187 return null; 5188 } 5189 5190 public Canvas lockCanvas(Rect dirty) { 5191 return null; 5192 } 5193 5194 public void unlockCanvasAndPost(Canvas canvas) { 5195 } 5196 public Rect getSurfaceFrame() { 5197 return null; 5198 } 5199 }; 5200 5201 static RunQueue getRunQueue() { 5202 RunQueue rq = sRunQueues.get(); 5203 if (rq != null) { 5204 return rq; 5205 } 5206 rq = new RunQueue(); 5207 sRunQueues.set(rq); 5208 return rq; 5209 } 5210 5211 /** 5212 * The run queue is used to enqueue pending work from Views when no Handler is 5213 * attached. The work is executed during the next call to performTraversals on 5214 * the thread. 5215 * @hide 5216 */ 5217 static final class RunQueue { 5218 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5219 5220 void post(Runnable action) { 5221 postDelayed(action, 0); 5222 } 5223 5224 void postDelayed(Runnable action, long delayMillis) { 5225 HandlerAction handlerAction = new HandlerAction(); 5226 handlerAction.action = action; 5227 handlerAction.delay = delayMillis; 5228 5229 synchronized (mActions) { 5230 mActions.add(handlerAction); 5231 } 5232 } 5233 5234 void removeCallbacks(Runnable action) { 5235 final HandlerAction handlerAction = new HandlerAction(); 5236 handlerAction.action = action; 5237 5238 synchronized (mActions) { 5239 final ArrayList<HandlerAction> actions = mActions; 5240 5241 while (actions.remove(handlerAction)) { 5242 // Keep going 5243 } 5244 } 5245 } 5246 5247 void executeActions(Handler handler) { 5248 synchronized (mActions) { 5249 final ArrayList<HandlerAction> actions = mActions; 5250 final int count = actions.size(); 5251 5252 for (int i = 0; i < count; i++) { 5253 final HandlerAction handlerAction = actions.get(i); 5254 handler.postDelayed(handlerAction.action, handlerAction.delay); 5255 } 5256 5257 actions.clear(); 5258 } 5259 } 5260 5261 private static class HandlerAction { 5262 Runnable action; 5263 long delay; 5264 5265 @Override 5266 public boolean equals(Object o) { 5267 if (this == o) return true; 5268 if (o == null || getClass() != o.getClass()) return false; 5269 5270 HandlerAction that = (HandlerAction) o; 5271 return !(action != null ? !action.equals(that.action) : that.action != null); 5272 5273 } 5274 5275 @Override 5276 public int hashCode() { 5277 int result = action != null ? action.hashCode() : 0; 5278 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5279 return result; 5280 } 5281 } 5282 } 5283 5284 /** 5285 * Class for managing the accessibility interaction connection 5286 * based on the global accessibility state. 5287 */ 5288 final class AccessibilityInteractionConnectionManager 5289 implements AccessibilityStateChangeListener { 5290 public void onAccessibilityStateChanged(boolean enabled) { 5291 if (enabled) { 5292 ensureConnection(); 5293 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5294 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5295 View focusedView = mView.findFocus(); 5296 if (focusedView != null && focusedView != mView) { 5297 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5298 } 5299 } 5300 } else { 5301 ensureNoConnection(); 5302 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5303 } 5304 } 5305 5306 public void ensureConnection() { 5307 if (mAttachInfo != null) { 5308 final boolean registered = 5309 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5310 if (!registered) { 5311 mAttachInfo.mAccessibilityWindowId = 5312 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5313 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5314 } 5315 } 5316 } 5317 5318 public void ensureNoConnection() { 5319 final boolean registered = 5320 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5321 if (registered) { 5322 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5323 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5324 } 5325 } 5326 } 5327 5328 /** 5329 * This class is an interface this ViewAncestor provides to the 5330 * AccessibilityManagerService to the latter can interact with 5331 * the view hierarchy in this ViewAncestor. 5332 */ 5333 static final class AccessibilityInteractionConnection 5334 extends IAccessibilityInteractionConnection.Stub { 5335 private final WeakReference<ViewRootImpl> mViewRootImpl; 5336 5337 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5338 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5339 } 5340 5341 @Override 5342 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5343 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5344 int interrogatingPid, long interrogatingTid) { 5345 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5346 if (viewRootImpl != null && viewRootImpl.mView != null) { 5347 viewRootImpl.getAccessibilityInteractionController() 5348 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5349 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5350 } else { 5351 // We cannot make the call and notify the caller so it does not wait. 5352 try { 5353 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5354 } catch (RemoteException re) { 5355 /* best effort - ignore */ 5356 } 5357 } 5358 } 5359 5360 @Override 5361 public void performAccessibilityAction(long accessibilityNodeId, int action, 5362 Bundle arguments, int interactionId, 5363 IAccessibilityInteractionConnectionCallback callback, int flags, 5364 int interogatingPid, long interrogatingTid) { 5365 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5366 if (viewRootImpl != null && viewRootImpl.mView != null) { 5367 viewRootImpl.getAccessibilityInteractionController() 5368 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5369 interactionId, callback, flags, interogatingPid, interrogatingTid); 5370 } else { 5371 // We cannot make the call and notify the caller so it does not wait. 5372 try { 5373 callback.setPerformAccessibilityActionResult(false, interactionId); 5374 } catch (RemoteException re) { 5375 /* best effort - ignore */ 5376 } 5377 } 5378 } 5379 5380 @Override 5381 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5382 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5383 int interrogatingPid, long interrogatingTid) { 5384 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5385 if (viewRootImpl != null && viewRootImpl.mView != null) { 5386 viewRootImpl.getAccessibilityInteractionController() 5387 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5388 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5389 } else { 5390 // We cannot make the call and notify the caller so it does not wait. 5391 try { 5392 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5393 } catch (RemoteException re) { 5394 /* best effort - ignore */ 5395 } 5396 } 5397 } 5398 5399 @Override 5400 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5401 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5402 int interrogatingPid, long interrogatingTid) { 5403 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5404 if (viewRootImpl != null && viewRootImpl.mView != null) { 5405 viewRootImpl.getAccessibilityInteractionController() 5406 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5407 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5408 } else { 5409 // We cannot make the call and notify the caller so it does not wait. 5410 try { 5411 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5412 } catch (RemoteException re) { 5413 /* best effort - ignore */ 5414 } 5415 } 5416 } 5417 5418 @Override 5419 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5420 IAccessibilityInteractionConnectionCallback callback, int flags, 5421 int interrogatingPid, long interrogatingTid) { 5422 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5423 if (viewRootImpl != null && viewRootImpl.mView != null) { 5424 viewRootImpl.getAccessibilityInteractionController() 5425 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5426 flags, interrogatingPid, interrogatingTid); 5427 } else { 5428 // We cannot make the call and notify the caller so it does not wait. 5429 try { 5430 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5431 } catch (RemoteException re) { 5432 /* best effort - ignore */ 5433 } 5434 } 5435 } 5436 5437 @Override 5438 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5439 IAccessibilityInteractionConnectionCallback callback, int flags, 5440 int interrogatingPid, long interrogatingTid) { 5441 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5442 if (viewRootImpl != null && viewRootImpl.mView != null) { 5443 viewRootImpl.getAccessibilityInteractionController() 5444 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5445 callback, flags, interrogatingPid, interrogatingTid); 5446 } else { 5447 // We cannot make the call and notify the caller so it does not wait. 5448 try { 5449 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5450 } catch (RemoteException re) { 5451 /* best effort - ignore */ 5452 } 5453 } 5454 } 5455 } 5456 5457 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5458 public View mSource; 5459 5460 public void run() { 5461 if (mSource != null) { 5462 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5463 mSource.resetAccessibilityStateChanged(); 5464 mSource = null; 5465 } 5466 } 5467 } 5468 } 5469