ViewRootImpl.java revision 9389d447c175b4ef9fb85cd296f53cf24be4fd7d
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import 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"}) 95public 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 final SimulatedTrackball mSimulatedTrackball = new SimulatedTrackball(); 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 final int mTargetSdkVersion; 168 169 int mSeq; 170 171 View mView; 172 View mFocusedView; 173 View mRealFocusedView; // this is not set to null in touch mode 174 View mOldFocusedView; 175 176 View mAccessibilityFocusedHost; 177 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 178 179 int mViewVisibility; 180 boolean mAppVisible = true; 181 int mOrigWindowType = -1; 182 183 // Set to true if the owner of this window is in the stopped state, 184 // so the window should no longer be active. 185 boolean mStopped = false; 186 187 boolean mLastInCompatMode = false; 188 189 SurfaceHolder.Callback2 mSurfaceHolderCallback; 190 BaseSurfaceHolder mSurfaceHolder; 191 boolean mIsCreating; 192 boolean mDrawingAllowed; 193 194 final Region mTransparentRegion; 195 final Region mPreviousTransparentRegion; 196 197 int mWidth; 198 int mHeight; 199 Rect mDirty; 200 final Rect mCurrentDirty = new Rect(); 201 final Rect mPreviousDirty = new Rect(); 202 boolean mIsAnimating; 203 204 CompatibilityInfo.Translator mTranslator; 205 206 final View.AttachInfo mAttachInfo; 207 InputChannel mInputChannel; 208 InputQueue.Callback mInputQueueCallback; 209 InputQueue mInputQueue; 210 FallbackEventHandler mFallbackEventHandler; 211 Choreographer mChoreographer; 212 213 final Rect mTempRect; // used in the transaction to not thrash the heap. 214 final Rect mVisRect; // used to retrieve visible rect of focused view. 215 216 boolean mTraversalScheduled; 217 int mTraversalBarrier; 218 boolean mWillDrawSoon; 219 /** Set to true while in performTraversals for detecting when die(true) is called from internal 220 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 221 boolean mIsInTraversal; 222 boolean mFitSystemWindowsRequested; 223 boolean mLayoutRequested; 224 boolean mFirst; 225 boolean mReportNextDraw; 226 boolean mFullRedrawNeeded; 227 boolean mNewSurfaceNeeded; 228 boolean mHasHadWindowFocus; 229 boolean mLastWasImTarget; 230 boolean mWindowsAnimating; 231 boolean mIsDrawing; 232 int mLastSystemUiVisibility; 233 int mClientWindowLayoutFlags; 234 235 // Pool of queued input events. 236 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 237 private QueuedInputEvent mQueuedInputEventPool; 238 private int mQueuedInputEventPoolSize; 239 240 // Input event queue. 241 QueuedInputEvent mFirstPendingInputEvent; 242 QueuedInputEvent mCurrentInputEvent; 243 boolean mProcessInputEventsScheduled; 244 245 boolean mWindowAttributesChanged = false; 246 int mWindowAttributesChangesFlag = 0; 247 248 // These can be accessed by any thread, must be protected with a lock. 249 // Surface can never be reassigned or cleared (use Surface.clear()). 250 private final Surface mSurface = new Surface(); 251 252 boolean mAdded; 253 boolean mAddedTouchMode; 254 255 final CompatibilityInfoHolder mCompatibilityInfo; 256 257 // These are accessed by multiple threads. 258 final Rect mWinFrame; // frame given by window manager. 259 260 final Rect mPendingVisibleInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mFitSystemWindowsInsets = new Rect(); 266 267 final Configuration mLastConfiguration = new Configuration(); 268 final Configuration mPendingConfiguration = new Configuration(); 269 270 boolean mScrollMayChange; 271 int mSoftInputMode; 272 View mLastScrolledFocus; 273 int mScrollY; 274 int mCurScrollY; 275 Scroller mScroller; 276 HardwareLayer mResizeBuffer; 277 long mResizeBufferStartTime; 278 int mResizeBufferDuration; 279 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 280 private ArrayList<LayoutTransition> mPendingTransitions; 281 282 final ViewConfiguration mViewConfiguration; 283 284 /* Drag/drop */ 285 ClipDescription mDragDescription; 286 View mCurrentDragView; 287 volatile Object mLocalDragState; 288 final PointF mDragPoint = new PointF(); 289 final PointF mLastTouchPoint = new PointF(); 290 291 private boolean mProfileRendering; 292 private Thread mRenderProfiler; 293 private volatile boolean mRenderProfilingEnabled; 294 295 // Variables to track frames per second, enabled via DEBUG_FPS flag 296 private long mFpsStartTime = -1; 297 private long mFpsPrevTime = -1; 298 private int mFpsNumFrames; 299 300 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 301 302 /** 303 * see {@link #playSoundEffect(int)} 304 */ 305 AudioManager mAudioManager; 306 307 final AccessibilityManager mAccessibilityManager; 308 309 AccessibilityInteractionController mAccessibilityInteractionController; 310 311 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 312 313 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 314 315 HashSet<View> mTempHashSet; 316 317 private final int mDensity; 318 private final int mNoncompatDensity; 319 320 private int mViewLayoutDirectionInitial; 321 322 /** 323 * Consistency verifier for debugging purposes. 324 */ 325 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 326 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 327 new InputEventConsistencyVerifier(this, 0) : null; 328 329 static final class SystemUiVisibilityInfo { 330 int seq; 331 int globalVisibility; 332 int localValue; 333 int localChanges; 334 } 335 336 public ViewRootImpl(Context context, Display display) { 337 super(); 338 339 if (MEASURE_LATENCY) { 340 if (lt == null) { 341 lt = new LatencyTimer(100, 1000); 342 } 343 } 344 345 // Initialize the statics when this class is first instantiated. This is 346 // done here instead of in the static block because Zygote does not 347 // allow the spawning of threads. 348 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 349 mDisplay = display; 350 351 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 352 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 353 354 mThread = Thread.currentThread(); 355 mLocation = new WindowLeaked(null); 356 mLocation.fillInStackTrace(); 357 mWidth = -1; 358 mHeight = -1; 359 mDirty = new Rect(); 360 mTempRect = new Rect(); 361 mVisRect = new Rect(); 362 mWinFrame = new Rect(); 363 mWindow = new W(this); 364 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 365 mInputMethodCallback = new InputMethodCallback(this); 366 mViewVisibility = View.GONE; 367 mTransparentRegion = new Region(); 368 mPreviousTransparentRegion = new Region(); 369 mFirst = true; // true for the first time the view is added 370 mAdded = false; 371 mAccessibilityManager = AccessibilityManager.getInstance(context); 372 mAccessibilityInteractionConnectionManager = 373 new AccessibilityInteractionConnectionManager(); 374 mAccessibilityManager.addAccessibilityStateChangeListener( 375 mAccessibilityInteractionConnectionManager); 376 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 377 mViewConfiguration = ViewConfiguration.get(context); 378 mDensity = context.getResources().getDisplayMetrics().densityDpi; 379 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 380 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 381 mProfileRendering = Boolean.parseBoolean( 382 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 383 mChoreographer = Choreographer.getInstance(); 384 385 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 386 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 387 loadSystemProperties(); 388 } 389 390 /** 391 * @return True if the application requests the use of a separate render thread, 392 * false otherwise 393 */ 394 private static boolean isRenderThreadRequested(Context context) { 395 if (USE_RENDER_THREAD) { 396 synchronized (sRenderThreadQueryLock) { 397 if (!sRenderThreadQueried) { 398 final PackageManager packageManager = context.getPackageManager(); 399 final String packageName = context.getApplicationInfo().packageName; 400 try { 401 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 402 PackageManager.GET_META_DATA); 403 if (applicationInfo.metaData != null) { 404 sUseRenderThread = applicationInfo.metaData.getBoolean( 405 "android.graphics.renderThread", false); 406 } 407 } catch (PackageManager.NameNotFoundException e) { 408 } finally { 409 sRenderThreadQueried = true; 410 } 411 } 412 return sUseRenderThread; 413 } 414 } else { 415 return false; 416 } 417 } 418 419 public static void addFirstDrawHandler(Runnable callback) { 420 synchronized (sFirstDrawHandlers) { 421 if (!sFirstDrawComplete) { 422 sFirstDrawHandlers.add(callback); 423 } 424 } 425 } 426 427 public static void addConfigCallback(ComponentCallbacks callback) { 428 synchronized (sConfigCallbacks) { 429 sConfigCallbacks.add(callback); 430 } 431 } 432 433 // FIXME for perf testing only 434 private boolean mProfile = false; 435 436 /** 437 * Call this to profile the next traversal call. 438 * FIXME for perf testing only. Remove eventually 439 */ 440 public void profile() { 441 mProfile = true; 442 } 443 444 /** 445 * Indicates whether we are in touch mode. Calling this method triggers an IPC 446 * call and should be avoided whenever possible. 447 * 448 * @return True, if the device is in touch mode, false otherwise. 449 * 450 * @hide 451 */ 452 static boolean isInTouchMode() { 453 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 454 if (windowSession != null) { 455 try { 456 return windowSession.getInTouchMode(); 457 } catch (RemoteException e) { 458 } 459 } 460 return false; 461 } 462 463 /** 464 * We have one child 465 */ 466 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 467 synchronized (this) { 468 if (mView == null) { 469 mView = view; 470 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 471 mFallbackEventHandler.setView(view); 472 mWindowAttributes.copyFrom(attrs); 473 attrs = mWindowAttributes; 474 // Keep track of the actual window flags supplied by the client. 475 mClientWindowLayoutFlags = attrs.flags; 476 477 setAccessibilityFocus(null, null); 478 479 if (view instanceof RootViewSurfaceTaker) { 480 mSurfaceHolderCallback = 481 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 482 if (mSurfaceHolderCallback != null) { 483 mSurfaceHolder = new TakenSurfaceHolder(); 484 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 485 } 486 } 487 488 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 489 mTranslator = compatibilityInfo.getTranslator(); 490 491 // If the application owns the surface, don't enable hardware acceleration 492 if (mSurfaceHolder == null) { 493 enableHardwareAcceleration(mView.getContext(), attrs); 494 } 495 496 boolean restore = false; 497 if (mTranslator != null) { 498 mSurface.setCompatibilityTranslator(mTranslator); 499 restore = true; 500 attrs.backup(); 501 mTranslator.translateWindowLayout(attrs); 502 } 503 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 504 505 if (!compatibilityInfo.supportsScreen()) { 506 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 507 mLastInCompatMode = true; 508 } 509 510 mSoftInputMode = attrs.softInputMode; 511 mWindowAttributesChanged = true; 512 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 513 mAttachInfo.mRootView = view; 514 mAttachInfo.mScalingRequired = mTranslator != null; 515 mAttachInfo.mApplicationScale = 516 mTranslator == null ? 1.0f : mTranslator.applicationScale; 517 if (panelParentView != null) { 518 mAttachInfo.mPanelParentWindowToken 519 = panelParentView.getApplicationWindowToken(); 520 } 521 mAdded = true; 522 int res; /* = WindowManagerImpl.ADD_OKAY; */ 523 524 // Schedule the first layout -before- adding to the window 525 // manager, to make sure we do the relayout before receiving 526 // any other events from the system. 527 requestLayout(); 528 if ((mWindowAttributes.inputFeatures 529 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 530 mInputChannel = new InputChannel(); 531 } 532 try { 533 mOrigWindowType = mWindowAttributes.type; 534 mAttachInfo.mRecomputeGlobalAttributes = true; 535 collectViewAttributes(); 536 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 537 getHostVisibility(), mDisplay.getDisplayId(), 538 mAttachInfo.mContentInsets, mInputChannel); 539 } catch (RemoteException e) { 540 mAdded = false; 541 mView = null; 542 mAttachInfo.mRootView = null; 543 mInputChannel = null; 544 mFallbackEventHandler.setView(null); 545 unscheduleTraversals(); 546 setAccessibilityFocus(null, null); 547 throw new RuntimeException("Adding window failed", e); 548 } finally { 549 if (restore) { 550 attrs.restore(); 551 } 552 } 553 554 if (mTranslator != null) { 555 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 556 } 557 mPendingContentInsets.set(mAttachInfo.mContentInsets); 558 mPendingVisibleInsets.set(0, 0, 0, 0); 559 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 560 if (res < WindowManagerGlobal.ADD_OKAY) { 561 mView = null; 562 mAttachInfo.mRootView = null; 563 mAdded = false; 564 mFallbackEventHandler.setView(null); 565 unscheduleTraversals(); 566 setAccessibilityFocus(null, null); 567 switch (res) { 568 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 569 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 570 throw new WindowManager.BadTokenException( 571 "Unable to add window -- token " + attrs.token 572 + " is not valid; is your activity running?"); 573 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 574 throw new WindowManager.BadTokenException( 575 "Unable to add window -- token " + attrs.token 576 + " is not for an application"); 577 case WindowManagerGlobal.ADD_APP_EXITING: 578 throw new WindowManager.BadTokenException( 579 "Unable to add window -- app for token " + attrs.token 580 + " is exiting"); 581 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 582 throw new WindowManager.BadTokenException( 583 "Unable to add window -- window " + mWindow 584 + " has already been added"); 585 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 586 // Silently ignore -- we would have just removed it 587 // right away, anyway. 588 return; 589 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 590 throw new WindowManager.BadTokenException( 591 "Unable to add window " + mWindow + 592 " -- another window of this type already exists"); 593 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 594 throw new WindowManager.BadTokenException( 595 "Unable to add window " + mWindow + 596 " -- permission denied for this window type"); 597 } 598 throw new RuntimeException( 599 "Unable to add window -- unknown error code " + res); 600 } 601 602 if (view instanceof RootViewSurfaceTaker) { 603 mInputQueueCallback = 604 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 605 } 606 if (mInputChannel != null) { 607 if (mInputQueueCallback != null) { 608 mInputQueue = new InputQueue(mInputChannel); 609 mInputQueueCallback.onInputQueueCreated(mInputQueue); 610 } else { 611 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 612 Looper.myLooper()); 613 } 614 } 615 616 view.assignParent(this); 617 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 618 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 619 620 if (mAccessibilityManager.isEnabled()) { 621 mAccessibilityInteractionConnectionManager.ensureConnection(); 622 } 623 624 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 625 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 626 } 627 } 628 } 629 } 630 631 void destroyHardwareResources() { 632 if (mAttachInfo.mHardwareRenderer != null) { 633 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 634 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 635 } 636 mAttachInfo.mHardwareRenderer.destroy(false); 637 } 638 } 639 640 void terminateHardwareResources() { 641 if (mAttachInfo.mHardwareRenderer != null) { 642 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 643 mAttachInfo.mHardwareRenderer.destroy(false); 644 } 645 } 646 647 void destroyHardwareLayers() { 648 if (mThread != Thread.currentThread()) { 649 if (mAttachInfo.mHardwareRenderer != null && 650 mAttachInfo.mHardwareRenderer.isEnabled()) { 651 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 652 } 653 } else { 654 if (mAttachInfo.mHardwareRenderer != null && 655 mAttachInfo.mHardwareRenderer.isEnabled()) { 656 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 657 } 658 } 659 } 660 661 void pushHardwareLayerUpdate(HardwareLayer layer) { 662 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 663 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 664 } 665 } 666 667 public boolean attachFunctor(int functor) { 668 //noinspection SimplifiableIfStatement 669 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 670 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 671 } 672 return false; 673 } 674 675 public void detachFunctor(int functor) { 676 if (mAttachInfo.mHardwareRenderer != null) { 677 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 678 } 679 } 680 681 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 682 mAttachInfo.mHardwareAccelerated = false; 683 mAttachInfo.mHardwareAccelerationRequested = false; 684 685 // Don't enable hardware acceleration when the application is in compatibility mode 686 if (mTranslator != null) return; 687 688 // Try to enable hardware acceleration if requested 689 final boolean hardwareAccelerated = 690 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 691 692 if (hardwareAccelerated) { 693 if (!HardwareRenderer.isAvailable()) { 694 return; 695 } 696 697 // Persistent processes (including the system) should not do 698 // accelerated rendering on low-end devices. In that case, 699 // sRendererDisabled will be set. In addition, the system process 700 // itself should never do accelerated rendering. In that case, both 701 // sRendererDisabled and sSystemRendererDisabled are set. When 702 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 703 // can be used by code on the system process to escape that and enable 704 // HW accelerated drawing. (This is basically for the lock screen.) 705 706 final boolean fakeHwAccelerated = (attrs.privateFlags & 707 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 708 final boolean forceHwAccelerated = (attrs.privateFlags & 709 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 710 711 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 712 && forceHwAccelerated)) { 713 // Don't enable hardware acceleration when we're not on the main thread 714 if (!HardwareRenderer.sSystemRendererDisabled && 715 Looper.getMainLooper() != Looper.myLooper()) { 716 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 717 + "acceleration outside of the main thread, aborting"); 718 return; 719 } 720 721 final boolean renderThread = isRenderThreadRequested(context); 722 if (renderThread) { 723 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 724 } 725 726 if (mAttachInfo.mHardwareRenderer != null) { 727 mAttachInfo.mHardwareRenderer.destroy(true); 728 } 729 730 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 731 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 732 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 733 = mAttachInfo.mHardwareRenderer != null; 734 735 } else if (fakeHwAccelerated) { 736 // The window had wanted to use hardware acceleration, but this 737 // is not allowed in its process. By setting this flag, it can 738 // still render as if it was accelerated. This is basically for 739 // the preview windows the window manager shows for launching 740 // applications, so they will look more like the app being launched. 741 mAttachInfo.mHardwareAccelerationRequested = true; 742 } 743 } 744 } 745 746 public View getView() { 747 return mView; 748 } 749 750 final WindowLeaked getLocation() { 751 return mLocation; 752 } 753 754 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 755 synchronized (this) { 756 int oldSoftInputMode = mWindowAttributes.softInputMode; 757 // Keep track of the actual window flags supplied by the client. 758 mClientWindowLayoutFlags = attrs.flags; 759 // preserve compatible window flag if exists. 760 int compatibleWindowFlag = 761 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 762 // transfer over system UI visibility values as they carry current state. 763 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 764 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 765 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 766 mWindowAttributes.flags |= compatibleWindowFlag; 767 768 applyKeepScreenOnFlag(mWindowAttributes); 769 770 if (newView) { 771 mSoftInputMode = attrs.softInputMode; 772 requestLayout(); 773 } 774 // Don't lose the mode we last auto-computed. 775 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 776 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 777 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 778 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 779 | (oldSoftInputMode 780 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 781 } 782 mWindowAttributesChanged = true; 783 scheduleTraversals(); 784 } 785 } 786 787 void handleAppVisibility(boolean visible) { 788 if (mAppVisible != visible) { 789 mAppVisible = visible; 790 scheduleTraversals(); 791 } 792 } 793 794 void handleGetNewSurface() { 795 mNewSurfaceNeeded = true; 796 mFullRedrawNeeded = true; 797 scheduleTraversals(); 798 } 799 800 void handleScreenStateChange(boolean on) { 801 if (on != mAttachInfo.mScreenOn) { 802 mAttachInfo.mScreenOn = on; 803 if (mView != null) { 804 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 805 } 806 if (on) { 807 mFullRedrawNeeded = true; 808 scheduleTraversals(); 809 } 810 } 811 } 812 813 /** 814 * {@inheritDoc} 815 */ 816 public void requestFitSystemWindows() { 817 checkThread(); 818 mFitSystemWindowsRequested = true; 819 scheduleTraversals(); 820 } 821 822 /** 823 * {@inheritDoc} 824 */ 825 public void requestLayout() { 826 checkThread(); 827 mLayoutRequested = true; 828 scheduleTraversals(); 829 } 830 831 /** 832 * {@inheritDoc} 833 */ 834 public boolean isLayoutRequested() { 835 return mLayoutRequested; 836 } 837 838 void invalidate() { 839 mDirty.set(0, 0, mWidth, mHeight); 840 scheduleTraversals(); 841 } 842 843 void invalidateWorld(View view) { 844 view.invalidate(); 845 if (view instanceof ViewGroup) { 846 ViewGroup parent = (ViewGroup) view; 847 for (int i = 0; i < parent.getChildCount(); i++) { 848 invalidateWorld(parent.getChildAt(i)); 849 } 850 } 851 } 852 853 public void invalidateChild(View child, Rect dirty) { 854 invalidateChildInParent(null, dirty); 855 } 856 857 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 858 checkThread(); 859 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 860 861 if (dirty == null) { 862 invalidate(); 863 return null; 864 } else if (dirty.isEmpty()) { 865 return null; 866 } 867 868 if (mCurScrollY != 0 || mTranslator != null) { 869 mTempRect.set(dirty); 870 dirty = mTempRect; 871 if (mCurScrollY != 0) { 872 dirty.offset(0, -mCurScrollY); 873 } 874 if (mTranslator != null) { 875 mTranslator.translateRectInAppWindowToScreen(dirty); 876 } 877 if (mAttachInfo.mScalingRequired) { 878 dirty.inset(-1, -1); 879 } 880 } 881 882 final Rect localDirty = mDirty; 883 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 884 mAttachInfo.mSetIgnoreDirtyState = true; 885 mAttachInfo.mIgnoreDirtyState = true; 886 } 887 888 // Add the new dirty rect to the current one 889 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 890 // Intersect with the bounds of the window to skip 891 // updates that lie outside of the visible region 892 final float appScale = mAttachInfo.mApplicationScale; 893 if (localDirty.intersect(0, 0, 894 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f))) { 895 if (!mWillDrawSoon) { 896 scheduleTraversals(); 897 } 898 } else { 899 localDirty.setEmpty(); 900 } 901 902 return null; 903 } 904 905 void setStopped(boolean stopped) { 906 if (mStopped != stopped) { 907 mStopped = stopped; 908 if (!stopped) { 909 scheduleTraversals(); 910 } 911 } 912 } 913 914 public ViewParent getParent() { 915 return null; 916 } 917 918 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 919 if (child != mView) { 920 throw new RuntimeException("child is not mine, honest!"); 921 } 922 // Note: don't apply scroll offset, because we want to know its 923 // visibility in the virtual canvas being given to the view hierarchy. 924 return r.intersect(0, 0, mWidth, mHeight); 925 } 926 927 public void bringChildToFront(View child) { 928 } 929 930 int getHostVisibility() { 931 return mAppVisible ? mView.getVisibility() : View.GONE; 932 } 933 934 void disposeResizeBuffer() { 935 if (mResizeBuffer != null) { 936 mResizeBuffer.destroy(); 937 mResizeBuffer = null; 938 } 939 } 940 941 /** 942 * Add LayoutTransition to the list of transitions to be started in the next traversal. 943 * This list will be cleared after the transitions on the list are start()'ed. These 944 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 945 * happens during the layout phase of traversal, which we want to complete before any of the 946 * animations are started (because those animations may side-effect properties that layout 947 * depends upon, like the bounding rectangles of the affected views). So we add the transition 948 * to the list and it is started just prior to starting the drawing phase of traversal. 949 * 950 * @param transition The LayoutTransition to be started on the next traversal. 951 * 952 * @hide 953 */ 954 public void requestTransitionStart(LayoutTransition transition) { 955 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 956 if (mPendingTransitions == null) { 957 mPendingTransitions = new ArrayList<LayoutTransition>(); 958 } 959 mPendingTransitions.add(transition); 960 } 961 } 962 963 void scheduleTraversals() { 964 if (!mTraversalScheduled) { 965 mTraversalScheduled = true; 966 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 967 mChoreographer.postCallback( 968 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 969 scheduleConsumeBatchedInput(); 970 } 971 } 972 973 void unscheduleTraversals() { 974 if (mTraversalScheduled) { 975 mTraversalScheduled = false; 976 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 977 mChoreographer.removeCallbacks( 978 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 979 } 980 } 981 982 void doTraversal() { 983 if (mTraversalScheduled) { 984 mTraversalScheduled = false; 985 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 986 987 if (mProfile) { 988 Debug.startMethodTracing("ViewAncestor"); 989 } 990 991 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 992 try { 993 performTraversals(); 994 } finally { 995 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 996 } 997 998 if (mProfile) { 999 Debug.stopMethodTracing(); 1000 mProfile = false; 1001 } 1002 } 1003 } 1004 1005 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1006 // Update window's global keep screen on flag: if a view has requested 1007 // that the screen be kept on, then it is always set; otherwise, it is 1008 // set to whatever the client last requested for the global state. 1009 if (mAttachInfo.mKeepScreenOn) { 1010 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1011 } else { 1012 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1013 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1014 } 1015 } 1016 1017 private boolean collectViewAttributes() { 1018 final View.AttachInfo attachInfo = mAttachInfo; 1019 if (attachInfo.mRecomputeGlobalAttributes) { 1020 //Log.i(TAG, "Computing view hierarchy attributes!"); 1021 attachInfo.mRecomputeGlobalAttributes = false; 1022 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1023 attachInfo.mKeepScreenOn = false; 1024 attachInfo.mSystemUiVisibility = 0; 1025 attachInfo.mHasSystemUiListeners = false; 1026 mView.dispatchCollectViewAttributes(attachInfo, 0); 1027 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1028 WindowManager.LayoutParams params = mWindowAttributes; 1029 if (attachInfo.mKeepScreenOn != oldScreenOn 1030 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1031 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1032 applyKeepScreenOnFlag(params); 1033 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1034 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1035 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1036 return true; 1037 } 1038 } 1039 return false; 1040 } 1041 1042 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1043 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1044 int childWidthMeasureSpec; 1045 int childHeightMeasureSpec; 1046 boolean windowSizeMayChange = false; 1047 1048 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1049 "Measuring " + host + " in display " + desiredWindowWidth 1050 + "x" + desiredWindowHeight + "..."); 1051 1052 boolean goodMeasure = false; 1053 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1054 // On large screens, we don't want to allow dialogs to just 1055 // stretch to fill the entire width of the screen to display 1056 // one line of text. First try doing the layout at a smaller 1057 // size to see if it will fit. 1058 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1059 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1060 int baseSize = 0; 1061 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1062 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1063 } 1064 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1065 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1066 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1067 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1068 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1069 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1070 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1071 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1072 goodMeasure = true; 1073 } else { 1074 // Didn't fit in that size... try expanding a bit. 1075 baseSize = (baseSize+desiredWindowWidth)/2; 1076 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1077 + baseSize); 1078 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1079 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1080 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1081 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1082 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1083 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1084 goodMeasure = true; 1085 } 1086 } 1087 } 1088 } 1089 1090 if (!goodMeasure) { 1091 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1092 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1093 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1094 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1095 windowSizeMayChange = true; 1096 } 1097 } 1098 1099 if (DBG) { 1100 System.out.println("======================================"); 1101 System.out.println("performTraversals -- after measure"); 1102 host.debug(); 1103 } 1104 1105 return windowSizeMayChange; 1106 } 1107 1108 private void performTraversals() { 1109 // cache mView since it is used so much below... 1110 final View host = mView; 1111 1112 if (DBG) { 1113 System.out.println("======================================"); 1114 System.out.println("performTraversals"); 1115 host.debug(); 1116 } 1117 1118 if (host == null || !mAdded) 1119 return; 1120 1121 mIsInTraversal = true; 1122 mWillDrawSoon = true; 1123 boolean windowSizeMayChange = false; 1124 boolean newSurface = false; 1125 boolean surfaceChanged = false; 1126 WindowManager.LayoutParams lp = mWindowAttributes; 1127 1128 int desiredWindowWidth; 1129 int desiredWindowHeight; 1130 1131 final View.AttachInfo attachInfo = mAttachInfo; 1132 1133 final int viewVisibility = getHostVisibility(); 1134 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1135 || mNewSurfaceNeeded; 1136 1137 WindowManager.LayoutParams params = null; 1138 if (mWindowAttributesChanged) { 1139 mWindowAttributesChanged = false; 1140 surfaceChanged = true; 1141 params = lp; 1142 } 1143 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1144 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1145 params = lp; 1146 mFullRedrawNeeded = true; 1147 mLayoutRequested = true; 1148 if (mLastInCompatMode) { 1149 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1150 mLastInCompatMode = false; 1151 } else { 1152 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1153 mLastInCompatMode = true; 1154 } 1155 } 1156 1157 mWindowAttributesChangesFlag = 0; 1158 1159 Rect frame = mWinFrame; 1160 if (mFirst) { 1161 mFullRedrawNeeded = true; 1162 mLayoutRequested = true; 1163 1164 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1165 // NOTE -- system code, won't try to do compat mode. 1166 Point size = new Point(); 1167 mDisplay.getRealSize(size); 1168 desiredWindowWidth = size.x; 1169 desiredWindowHeight = size.y; 1170 } else { 1171 DisplayMetrics packageMetrics = 1172 mView.getContext().getResources().getDisplayMetrics(); 1173 desiredWindowWidth = packageMetrics.widthPixels; 1174 desiredWindowHeight = packageMetrics.heightPixels; 1175 } 1176 1177 // For the very first time, tell the view hierarchy that it 1178 // is attached to the window. Note that at this point the surface 1179 // object is not initialized to its backing store, but soon it 1180 // will be (assuming the window is visible). 1181 attachInfo.mSurface = mSurface; 1182 // We used to use the following condition to choose 32 bits drawing caches: 1183 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1184 // However, windows are now always 32 bits by default, so choose 32 bits 1185 attachInfo.mUse32BitDrawingCache = true; 1186 attachInfo.mHasWindowFocus = false; 1187 attachInfo.mWindowVisibility = viewVisibility; 1188 attachInfo.mRecomputeGlobalAttributes = false; 1189 viewVisibilityChanged = false; 1190 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1191 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1192 // Set the layout direction if it has not been set before (inherit is the default) 1193 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1194 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1195 } 1196 host.dispatchAttachedToWindow(attachInfo, 0); 1197 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1198 host.fitSystemWindows(mFitSystemWindowsInsets); 1199 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1200 1201 } else { 1202 desiredWindowWidth = frame.width(); 1203 desiredWindowHeight = frame.height(); 1204 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1205 if (DEBUG_ORIENTATION) Log.v(TAG, 1206 "View " + host + " resized to: " + frame); 1207 mFullRedrawNeeded = true; 1208 mLayoutRequested = true; 1209 windowSizeMayChange = true; 1210 } 1211 } 1212 1213 if (viewVisibilityChanged) { 1214 attachInfo.mWindowVisibility = viewVisibility; 1215 host.dispatchWindowVisibilityChanged(viewVisibility); 1216 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1217 destroyHardwareResources(); 1218 } 1219 if (viewVisibility == View.GONE) { 1220 // After making a window gone, we will count it as being 1221 // shown for the first time the next time it gets focus. 1222 mHasHadWindowFocus = false; 1223 } 1224 } 1225 1226 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1227 getRunQueue().executeActions(attachInfo.mHandler); 1228 1229 boolean insetsChanged = false; 1230 1231 boolean layoutRequested = mLayoutRequested && !mStopped; 1232 if (layoutRequested) { 1233 1234 final Resources res = mView.getContext().getResources(); 1235 1236 if (mFirst) { 1237 // make sure touch mode code executes by setting cached value 1238 // to opposite of the added touch mode. 1239 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1240 ensureTouchModeLocally(mAddedTouchMode); 1241 } else { 1242 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1243 insetsChanged = true; 1244 } 1245 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1246 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1247 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1248 + mAttachInfo.mVisibleInsets); 1249 } 1250 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1251 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1252 windowSizeMayChange = true; 1253 1254 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1255 // NOTE -- system code, won't try to do compat mode. 1256 Point size = new Point(); 1257 mDisplay.getRealSize(size); 1258 desiredWindowWidth = size.x; 1259 desiredWindowHeight = size.y; 1260 } else { 1261 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1262 desiredWindowWidth = packageMetrics.widthPixels; 1263 desiredWindowHeight = packageMetrics.heightPixels; 1264 } 1265 } 1266 } 1267 1268 // Ask host how big it wants to be 1269 windowSizeMayChange |= measureHierarchy(host, lp, res, 1270 desiredWindowWidth, desiredWindowHeight); 1271 } 1272 1273 if (collectViewAttributes()) { 1274 params = lp; 1275 } 1276 if (attachInfo.mForceReportNewAttributes) { 1277 attachInfo.mForceReportNewAttributes = false; 1278 params = lp; 1279 } 1280 1281 if (mFirst || attachInfo.mViewVisibilityChanged) { 1282 attachInfo.mViewVisibilityChanged = false; 1283 int resizeMode = mSoftInputMode & 1284 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1285 // If we are in auto resize mode, then we need to determine 1286 // what mode to use now. 1287 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1288 final int N = attachInfo.mScrollContainers.size(); 1289 for (int i=0; i<N; i++) { 1290 if (attachInfo.mScrollContainers.get(i).isShown()) { 1291 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1292 } 1293 } 1294 if (resizeMode == 0) { 1295 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1296 } 1297 if ((lp.softInputMode & 1298 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1299 lp.softInputMode = (lp.softInputMode & 1300 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1301 resizeMode; 1302 params = lp; 1303 } 1304 } 1305 } 1306 1307 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1308 if (!PixelFormat.formatHasAlpha(params.format)) { 1309 params.format = PixelFormat.TRANSLUCENT; 1310 } 1311 } 1312 1313 if (mFitSystemWindowsRequested) { 1314 mFitSystemWindowsRequested = false; 1315 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1316 host.fitSystemWindows(mFitSystemWindowsInsets); 1317 if (mLayoutRequested) { 1318 // Short-circuit catching a new layout request here, so 1319 // we don't need to go through two layout passes when things 1320 // change due to fitting system windows, which can happen a lot. 1321 windowSizeMayChange |= measureHierarchy(host, lp, 1322 mView.getContext().getResources(), 1323 desiredWindowWidth, desiredWindowHeight); 1324 } 1325 } 1326 1327 if (layoutRequested) { 1328 // Clear this now, so that if anything requests a layout in the 1329 // rest of this function we will catch it and re-run a full 1330 // layout pass. 1331 mLayoutRequested = false; 1332 } 1333 1334 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1335 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1336 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1337 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1338 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1339 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1340 1341 final boolean computesInternalInsets = 1342 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1343 1344 boolean insetsPending = false; 1345 int relayoutResult = 0; 1346 1347 if (mFirst || windowShouldResize || insetsChanged || 1348 viewVisibilityChanged || params != null) { 1349 1350 if (viewVisibility == View.VISIBLE) { 1351 // If this window is giving internal insets to the window 1352 // manager, and it is being added or changing its visibility, 1353 // then we want to first give the window manager "fake" 1354 // insets to cause it to effectively ignore the content of 1355 // the window during layout. This avoids it briefly causing 1356 // other windows to resize/move based on the raw frame of the 1357 // window, waiting until we can finish laying out this window 1358 // and get back to the window manager with the ultimately 1359 // computed insets. 1360 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1361 } 1362 1363 if (mSurfaceHolder != null) { 1364 mSurfaceHolder.mSurfaceLock.lock(); 1365 mDrawingAllowed = true; 1366 } 1367 1368 boolean hwInitialized = false; 1369 boolean contentInsetsChanged = false; 1370 boolean visibleInsetsChanged; 1371 boolean hadSurface = mSurface.isValid(); 1372 1373 try { 1374 if (DEBUG_LAYOUT) { 1375 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1376 host.getMeasuredHeight() + ", params=" + params); 1377 } 1378 1379 final int surfaceGenerationId = mSurface.getGenerationId(); 1380 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1381 1382 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1383 + " content=" + mPendingContentInsets.toShortString() 1384 + " visible=" + mPendingVisibleInsets.toShortString() 1385 + " surface=" + mSurface); 1386 1387 if (mPendingConfiguration.seq != 0) { 1388 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1389 + mPendingConfiguration); 1390 updateConfiguration(mPendingConfiguration, !mFirst); 1391 mPendingConfiguration.seq = 0; 1392 } 1393 1394 contentInsetsChanged = !mPendingContentInsets.equals( 1395 mAttachInfo.mContentInsets); 1396 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1397 mAttachInfo.mVisibleInsets); 1398 if (contentInsetsChanged) { 1399 if (mWidth > 0 && mHeight > 0 && lp != null && 1400 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1401 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1402 mSurface != null && mSurface.isValid() && 1403 !mAttachInfo.mTurnOffWindowResizeAnim && 1404 mAttachInfo.mHardwareRenderer != null && 1405 mAttachInfo.mHardwareRenderer.isEnabled() && 1406 mAttachInfo.mHardwareRenderer.validate() && 1407 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1408 1409 disposeResizeBuffer(); 1410 1411 boolean completed = false; 1412 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1413 HardwareCanvas layerCanvas = null; 1414 try { 1415 if (mResizeBuffer == null) { 1416 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1417 mWidth, mHeight, false); 1418 } else if (mResizeBuffer.getWidth() != mWidth || 1419 mResizeBuffer.getHeight() != mHeight) { 1420 mResizeBuffer.resize(mWidth, mHeight); 1421 } 1422 // TODO: should handle create/resize failure 1423 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1424 layerCanvas.setViewport(mWidth, mHeight); 1425 layerCanvas.onPreDraw(null); 1426 final int restoreCount = layerCanvas.save(); 1427 1428 int yoff; 1429 final boolean scrolling = mScroller != null 1430 && mScroller.computeScrollOffset(); 1431 if (scrolling) { 1432 yoff = mScroller.getCurrY(); 1433 mScroller.abortAnimation(); 1434 } else { 1435 yoff = mScrollY; 1436 } 1437 1438 layerCanvas.translate(0, -yoff); 1439 if (mTranslator != null) { 1440 mTranslator.translateCanvas(layerCanvas); 1441 } 1442 1443 DisplayList displayList = mView.mDisplayList; 1444 if (displayList != null) { 1445 layerCanvas.drawDisplayList(displayList, null, 1446 DisplayList.FLAG_CLIP_CHILDREN); 1447 } else { 1448 mView.draw(layerCanvas); 1449 } 1450 1451 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1452 1453 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1454 mResizeBufferDuration = mView.getResources().getInteger( 1455 com.android.internal.R.integer.config_mediumAnimTime); 1456 completed = true; 1457 1458 layerCanvas.restoreToCount(restoreCount); 1459 } catch (OutOfMemoryError e) { 1460 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1461 } finally { 1462 if (layerCanvas != null) { 1463 layerCanvas.onPostDraw(); 1464 } 1465 if (mResizeBuffer != null) { 1466 mResizeBuffer.end(hwRendererCanvas); 1467 if (!completed) { 1468 mResizeBuffer.destroy(); 1469 mResizeBuffer = null; 1470 } 1471 } 1472 } 1473 } 1474 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1475 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1476 + mAttachInfo.mContentInsets); 1477 } 1478 if (contentInsetsChanged || mLastSystemUiVisibility != 1479 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1480 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1481 mFitSystemWindowsRequested = false; 1482 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1483 host.fitSystemWindows(mFitSystemWindowsInsets); 1484 } 1485 if (visibleInsetsChanged) { 1486 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1487 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1488 + mAttachInfo.mVisibleInsets); 1489 } 1490 1491 if (!hadSurface) { 1492 if (mSurface.isValid()) { 1493 // If we are creating a new surface, then we need to 1494 // completely redraw it. Also, when we get to the 1495 // point of drawing it we will hold off and schedule 1496 // a new traversal instead. This is so we can tell the 1497 // window manager about all of the windows being displayed 1498 // before actually drawing them, so it can display then 1499 // all at once. 1500 newSurface = true; 1501 mFullRedrawNeeded = true; 1502 mPreviousTransparentRegion.setEmpty(); 1503 1504 if (mAttachInfo.mHardwareRenderer != null) { 1505 try { 1506 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1507 mHolder.getSurface()); 1508 } catch (Surface.OutOfResourcesException e) { 1509 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1510 try { 1511 if (!mWindowSession.outOfMemory(mWindow) && 1512 Process.myUid() != Process.SYSTEM_UID) { 1513 Slog.w(TAG, "No processes killed for memory; killing self"); 1514 Process.killProcess(Process.myPid()); 1515 } 1516 } catch (RemoteException ex) { 1517 } 1518 mLayoutRequested = true; // ask wm for a new surface next time. 1519 return; 1520 } 1521 } 1522 } 1523 } else if (!mSurface.isValid()) { 1524 // If the surface has been removed, then reset the scroll 1525 // positions. 1526 mLastScrolledFocus = null; 1527 mScrollY = mCurScrollY = 0; 1528 if (mScroller != null) { 1529 mScroller.abortAnimation(); 1530 } 1531 disposeResizeBuffer(); 1532 // Our surface is gone 1533 if (mAttachInfo.mHardwareRenderer != null && 1534 mAttachInfo.mHardwareRenderer.isEnabled()) { 1535 mAttachInfo.mHardwareRenderer.destroy(true); 1536 } 1537 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1538 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1539 mFullRedrawNeeded = true; 1540 try { 1541 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1542 } catch (Surface.OutOfResourcesException e) { 1543 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1544 try { 1545 if (!mWindowSession.outOfMemory(mWindow)) { 1546 Slog.w(TAG, "No processes killed for memory; killing self"); 1547 Process.killProcess(Process.myPid()); 1548 } 1549 } catch (RemoteException ex) { 1550 } 1551 mLayoutRequested = true; // ask wm for a new surface next time. 1552 return; 1553 } 1554 } 1555 } catch (RemoteException e) { 1556 } 1557 1558 if (DEBUG_ORIENTATION) Log.v( 1559 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1560 1561 attachInfo.mWindowLeft = frame.left; 1562 attachInfo.mWindowTop = frame.top; 1563 1564 // !!FIXME!! This next section handles the case where we did not get the 1565 // window size we asked for. We should avoid this by getting a maximum size from 1566 // the window session beforehand. 1567 if (mWidth != frame.width() || mHeight != frame.height()) { 1568 mWidth = frame.width(); 1569 mHeight = frame.height(); 1570 } 1571 1572 if (mSurfaceHolder != null) { 1573 // The app owns the surface; tell it about what is going on. 1574 if (mSurface.isValid()) { 1575 // XXX .copyFrom() doesn't work! 1576 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1577 mSurfaceHolder.mSurface = mSurface; 1578 } 1579 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1580 mSurfaceHolder.mSurfaceLock.unlock(); 1581 if (mSurface.isValid()) { 1582 if (!hadSurface) { 1583 mSurfaceHolder.ungetCallbacks(); 1584 1585 mIsCreating = true; 1586 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1587 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1588 if (callbacks != null) { 1589 for (SurfaceHolder.Callback c : callbacks) { 1590 c.surfaceCreated(mSurfaceHolder); 1591 } 1592 } 1593 surfaceChanged = true; 1594 } 1595 if (surfaceChanged) { 1596 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1597 lp.format, mWidth, mHeight); 1598 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1599 if (callbacks != null) { 1600 for (SurfaceHolder.Callback c : callbacks) { 1601 c.surfaceChanged(mSurfaceHolder, lp.format, 1602 mWidth, mHeight); 1603 } 1604 } 1605 } 1606 mIsCreating = false; 1607 } else if (hadSurface) { 1608 mSurfaceHolder.ungetCallbacks(); 1609 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1610 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1611 if (callbacks != null) { 1612 for (SurfaceHolder.Callback c : callbacks) { 1613 c.surfaceDestroyed(mSurfaceHolder); 1614 } 1615 } 1616 mSurfaceHolder.mSurfaceLock.lock(); 1617 try { 1618 mSurfaceHolder.mSurface = new Surface(); 1619 } finally { 1620 mSurfaceHolder.mSurfaceLock.unlock(); 1621 } 1622 } 1623 } 1624 1625 if (mAttachInfo.mHardwareRenderer != null && 1626 mAttachInfo.mHardwareRenderer.isEnabled()) { 1627 if (hwInitialized || windowShouldResize || 1628 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1629 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1630 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1631 if (!hwInitialized) { 1632 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1633 mFullRedrawNeeded = true; 1634 } 1635 } 1636 } 1637 1638 if (!mStopped) { 1639 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1640 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1641 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1642 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1643 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1644 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1645 1646 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1647 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1648 + " mHeight=" + mHeight 1649 + " measuredHeight=" + host.getMeasuredHeight() 1650 + " coveredInsetsChanged=" + contentInsetsChanged); 1651 1652 // Ask host how big it wants to be 1653 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1654 1655 // Implementation of weights from WindowManager.LayoutParams 1656 // We just grow the dimensions as needed and re-measure if 1657 // needs be 1658 int width = host.getMeasuredWidth(); 1659 int height = host.getMeasuredHeight(); 1660 boolean measureAgain = false; 1661 1662 if (lp.horizontalWeight > 0.0f) { 1663 width += (int) ((mWidth - width) * lp.horizontalWeight); 1664 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1665 MeasureSpec.EXACTLY); 1666 measureAgain = true; 1667 } 1668 if (lp.verticalWeight > 0.0f) { 1669 height += (int) ((mHeight - height) * lp.verticalWeight); 1670 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1671 MeasureSpec.EXACTLY); 1672 measureAgain = true; 1673 } 1674 1675 if (measureAgain) { 1676 if (DEBUG_LAYOUT) Log.v(TAG, 1677 "And hey let's measure once more: width=" + width 1678 + " height=" + height); 1679 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1680 } 1681 1682 layoutRequested = true; 1683 } 1684 } 1685 } else { 1686 // Not the first pass and no window/insets/visibility change but the window 1687 // may have moved and we need check that and if so to update the left and right 1688 // in the attach info. We translate only the window frame since on window move 1689 // the window manager tells us only for the new frame but the insets are the 1690 // same and we do not want to translate them more than once. 1691 1692 // TODO: Well, we are checking whether the frame has changed similarly 1693 // to how this is done for the insets. This is however incorrect since 1694 // the insets and the frame are translated. For example, the old frame 1695 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1696 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1697 // true since we are comparing a not translated value to a translated one. 1698 // This scenario is rare but we may want to fix that. 1699 1700 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1701 || attachInfo.mWindowTop != frame.top); 1702 if (windowMoved) { 1703 if (mTranslator != null) { 1704 mTranslator.translateRectInScreenToAppWinFrame(frame); 1705 } 1706 attachInfo.mWindowLeft = frame.left; 1707 attachInfo.mWindowTop = frame.top; 1708 } 1709 } 1710 1711 final boolean didLayout = layoutRequested && !mStopped; 1712 boolean triggerGlobalLayoutListener = didLayout 1713 || attachInfo.mRecomputeGlobalAttributes; 1714 if (didLayout) { 1715 performLayout(); 1716 1717 // By this point all views have been sized and positionned 1718 // We can compute the transparent area 1719 1720 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1721 // start out transparent 1722 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1723 host.getLocationInWindow(mTmpLocation); 1724 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1725 mTmpLocation[0] + host.mRight - host.mLeft, 1726 mTmpLocation[1] + host.mBottom - host.mTop); 1727 1728 host.gatherTransparentRegion(mTransparentRegion); 1729 if (mTranslator != null) { 1730 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1731 } 1732 1733 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1734 mPreviousTransparentRegion.set(mTransparentRegion); 1735 // reconfigure window manager 1736 try { 1737 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1738 } catch (RemoteException e) { 1739 } 1740 } 1741 } 1742 1743 if (DBG) { 1744 System.out.println("======================================"); 1745 System.out.println("performTraversals -- after setFrame"); 1746 host.debug(); 1747 } 1748 } 1749 1750 if (triggerGlobalLayoutListener) { 1751 attachInfo.mRecomputeGlobalAttributes = false; 1752 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1753 1754 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1755 postSendWindowContentChangedCallback(mView); 1756 } 1757 } 1758 1759 if (computesInternalInsets) { 1760 // Clear the original insets. 1761 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1762 insets.reset(); 1763 1764 // Compute new insets in place. 1765 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1766 1767 // Tell the window manager. 1768 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1769 mLastGivenInsets.set(insets); 1770 1771 // Translate insets to screen coordinates if needed. 1772 final Rect contentInsets; 1773 final Rect visibleInsets; 1774 final Region touchableRegion; 1775 if (mTranslator != null) { 1776 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1777 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1778 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1779 } else { 1780 contentInsets = insets.contentInsets; 1781 visibleInsets = insets.visibleInsets; 1782 touchableRegion = insets.touchableRegion; 1783 } 1784 1785 try { 1786 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1787 contentInsets, visibleInsets, touchableRegion); 1788 } catch (RemoteException e) { 1789 } 1790 } 1791 } 1792 1793 boolean skipDraw = false; 1794 1795 if (mFirst) { 1796 // handle first focus request 1797 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1798 + mView.hasFocus()); 1799 if (mView != null) { 1800 if (!mView.hasFocus()) { 1801 mView.requestFocus(View.FOCUS_FORWARD); 1802 mFocusedView = mRealFocusedView = mView.findFocus(); 1803 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1804 + mFocusedView); 1805 } else { 1806 mRealFocusedView = mView.findFocus(); 1807 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1808 + mRealFocusedView); 1809 } 1810 } 1811 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1812 // The first time we relayout the window, if the system is 1813 // doing window animations, we want to hold of on any future 1814 // draws until the animation is done. 1815 mWindowsAnimating = true; 1816 } 1817 } else if (mWindowsAnimating) { 1818 skipDraw = true; 1819 } 1820 1821 mFirst = false; 1822 mWillDrawSoon = false; 1823 mNewSurfaceNeeded = false; 1824 mViewVisibility = viewVisibility; 1825 1826 if (mAttachInfo.mHasWindowFocus) { 1827 final boolean imTarget = WindowManager.LayoutParams 1828 .mayUseInputMethod(mWindowAttributes.flags); 1829 if (imTarget != mLastWasImTarget) { 1830 mLastWasImTarget = imTarget; 1831 InputMethodManager imm = InputMethodManager.peekInstance(); 1832 if (imm != null && imTarget) { 1833 imm.startGettingWindowFocus(mView); 1834 imm.onWindowFocus(mView, mView.findFocus(), 1835 mWindowAttributes.softInputMode, 1836 !mHasHadWindowFocus, mWindowAttributes.flags); 1837 } 1838 } 1839 } 1840 1841 // Remember if we must report the next draw. 1842 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1843 mReportNextDraw = true; 1844 } 1845 1846 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1847 viewVisibility != View.VISIBLE; 1848 1849 if (!cancelDraw && !newSurface) { 1850 if (!skipDraw || mReportNextDraw) { 1851 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1852 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1853 mPendingTransitions.get(i).startChangingAnimations(); 1854 } 1855 mPendingTransitions.clear(); 1856 } 1857 1858 performDraw(); 1859 } 1860 } else { 1861 if (viewVisibility == View.VISIBLE) { 1862 // Try again 1863 scheduleTraversals(); 1864 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1865 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1866 mPendingTransitions.get(i).endChangingAnimations(); 1867 } 1868 mPendingTransitions.clear(); 1869 } 1870 } 1871 1872 mIsInTraversal = false; 1873 } 1874 1875 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1876 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1877 try { 1878 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1879 } finally { 1880 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1881 } 1882 } 1883 1884 private void performLayout() { 1885 mLayoutRequested = false; 1886 mScrollMayChange = true; 1887 1888 final View host = mView; 1889 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1890 Log.v(TAG, "Laying out " + host + " to (" + 1891 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1892 } 1893 1894 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1895 try { 1896 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1897 } finally { 1898 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1899 } 1900 } 1901 1902 public void requestTransparentRegion(View child) { 1903 // the test below should not fail unless someone is messing with us 1904 checkThread(); 1905 if (mView == child) { 1906 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1907 // Need to make sure we re-evaluate the window attributes next 1908 // time around, to ensure the window has the correct format. 1909 mWindowAttributesChanged = true; 1910 mWindowAttributesChangesFlag = 0; 1911 requestLayout(); 1912 } 1913 } 1914 1915 /** 1916 * Figures out the measure spec for the root view in a window based on it's 1917 * layout params. 1918 * 1919 * @param windowSize 1920 * The available width or height of the window 1921 * 1922 * @param rootDimension 1923 * The layout params for one dimension (width or height) of the 1924 * window. 1925 * 1926 * @return The measure spec to use to measure the root view. 1927 */ 1928 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1929 int measureSpec; 1930 switch (rootDimension) { 1931 1932 case ViewGroup.LayoutParams.MATCH_PARENT: 1933 // Window can't resize. Force root view to be windowSize. 1934 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1935 break; 1936 case ViewGroup.LayoutParams.WRAP_CONTENT: 1937 // Window can resize. Set max size for root view. 1938 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1939 break; 1940 default: 1941 // Window wants to be an exact size. Force root view to be that size. 1942 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1943 break; 1944 } 1945 return measureSpec; 1946 } 1947 1948 int mHardwareYOffset; 1949 int mResizeAlpha; 1950 final Paint mResizePaint = new Paint(); 1951 1952 public void onHardwarePreDraw(HardwareCanvas canvas) { 1953 canvas.translate(0, -mHardwareYOffset); 1954 } 1955 1956 public void onHardwarePostDraw(HardwareCanvas canvas) { 1957 if (mResizeBuffer != null) { 1958 mResizePaint.setAlpha(mResizeAlpha); 1959 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1960 } 1961 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1962 } 1963 1964 /** 1965 * @hide 1966 */ 1967 void outputDisplayList(View view) { 1968 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1969 DisplayList displayList = view.getDisplayList(); 1970 if (displayList != null) { 1971 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1972 } 1973 } 1974 } 1975 1976 /** 1977 * @see #PROPERTY_PROFILE_RENDERING 1978 */ 1979 private void profileRendering(boolean enabled) { 1980 if (mProfileRendering) { 1981 mRenderProfilingEnabled = enabled; 1982 if (mRenderProfiler == null) { 1983 mRenderProfiler = new Thread(new Runnable() { 1984 @Override 1985 public void run() { 1986 Log.d(TAG, "Starting profiling thread"); 1987 while (mRenderProfilingEnabled) { 1988 mAttachInfo.mHandler.post(new Runnable() { 1989 @Override 1990 public void run() { 1991 mDirty.set(0, 0, mWidth, mHeight); 1992 scheduleTraversals(); 1993 } 1994 }); 1995 try { 1996 // TODO: This should use vsync when we get an API 1997 Thread.sleep(15); 1998 } catch (InterruptedException e) { 1999 Log.d(TAG, "Exiting profiling thread"); 2000 } 2001 } 2002 } 2003 }, "Rendering Profiler"); 2004 mRenderProfiler.start(); 2005 } else { 2006 mRenderProfiler.interrupt(); 2007 mRenderProfiler = null; 2008 } 2009 } 2010 } 2011 2012 /** 2013 * Called from draw() when DEBUG_FPS is enabled 2014 */ 2015 private void trackFPS() { 2016 // Tracks frames per second drawn. First value in a series of draws may be bogus 2017 // because it down not account for the intervening idle time 2018 long nowTime = System.currentTimeMillis(); 2019 if (mFpsStartTime < 0) { 2020 mFpsStartTime = mFpsPrevTime = nowTime; 2021 mFpsNumFrames = 0; 2022 } else { 2023 ++mFpsNumFrames; 2024 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2025 long frameTime = nowTime - mFpsPrevTime; 2026 long totalTime = nowTime - mFpsStartTime; 2027 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2028 mFpsPrevTime = nowTime; 2029 if (totalTime > 1000) { 2030 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2031 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2032 mFpsStartTime = nowTime; 2033 mFpsNumFrames = 0; 2034 } 2035 } 2036 } 2037 2038 private void performDraw() { 2039 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2040 return; 2041 } 2042 2043 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2044 mFullRedrawNeeded = false; 2045 2046 mIsDrawing = true; 2047 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2048 try { 2049 draw(fullRedrawNeeded); 2050 } finally { 2051 mIsDrawing = false; 2052 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2053 } 2054 2055 if (mReportNextDraw) { 2056 mReportNextDraw = false; 2057 2058 if (LOCAL_LOGV) { 2059 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2060 } 2061 if (mSurfaceHolder != null && mSurface.isValid()) { 2062 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2063 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2064 if (callbacks != null) { 2065 for (SurfaceHolder.Callback c : callbacks) { 2066 if (c instanceof SurfaceHolder.Callback2) { 2067 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2068 mSurfaceHolder); 2069 } 2070 } 2071 } 2072 } 2073 try { 2074 mWindowSession.finishDrawing(mWindow); 2075 } catch (RemoteException e) { 2076 } 2077 } 2078 } 2079 2080 private void draw(boolean fullRedrawNeeded) { 2081 Surface surface = mSurface; 2082 if (surface == null || !surface.isValid()) { 2083 return; 2084 } 2085 2086 if (DEBUG_FPS) { 2087 trackFPS(); 2088 } 2089 2090 if (!sFirstDrawComplete) { 2091 synchronized (sFirstDrawHandlers) { 2092 sFirstDrawComplete = true; 2093 final int count = sFirstDrawHandlers.size(); 2094 for (int i = 0; i< count; i++) { 2095 mHandler.post(sFirstDrawHandlers.get(i)); 2096 } 2097 } 2098 } 2099 2100 scrollToRectOrFocus(null, false); 2101 2102 final AttachInfo attachInfo = mAttachInfo; 2103 if (attachInfo.mViewScrollChanged) { 2104 attachInfo.mViewScrollChanged = false; 2105 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2106 } 2107 2108 int yoff; 2109 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2110 if (animating) { 2111 yoff = mScroller.getCurrY(); 2112 } else { 2113 yoff = mScrollY; 2114 } 2115 if (mCurScrollY != yoff) { 2116 mCurScrollY = yoff; 2117 fullRedrawNeeded = true; 2118 } 2119 2120 final float appScale = attachInfo.mApplicationScale; 2121 final boolean scalingRequired = attachInfo.mScalingRequired; 2122 2123 int resizeAlpha = 0; 2124 if (mResizeBuffer != null) { 2125 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2126 if (deltaTime < mResizeBufferDuration) { 2127 float amt = deltaTime/(float) mResizeBufferDuration; 2128 amt = mResizeInterpolator.getInterpolation(amt); 2129 animating = true; 2130 resizeAlpha = 255 - (int)(amt*255); 2131 } else { 2132 disposeResizeBuffer(); 2133 } 2134 } 2135 2136 final Rect dirty = mDirty; 2137 if (mSurfaceHolder != null) { 2138 // The app owns the surface, we won't draw. 2139 dirty.setEmpty(); 2140 if (animating) { 2141 if (mScroller != null) { 2142 mScroller.abortAnimation(); 2143 } 2144 disposeResizeBuffer(); 2145 } 2146 return; 2147 } 2148 2149 if (fullRedrawNeeded) { 2150 attachInfo.mIgnoreDirtyState = true; 2151 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2152 } 2153 2154 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2155 Log.v(TAG, "Draw " + mView + "/" 2156 + mWindowAttributes.getTitle() 2157 + ": dirty={" + dirty.left + "," + dirty.top 2158 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2159 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2160 appScale + ", width=" + mWidth + ", height=" + mHeight); 2161 } 2162 2163 attachInfo.mTreeObserver.dispatchOnDraw(); 2164 2165 if (!dirty.isEmpty() || mIsAnimating) { 2166 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2167 // Draw with hardware renderer. 2168 mIsAnimating = false; 2169 mHardwareYOffset = yoff; 2170 mResizeAlpha = resizeAlpha; 2171 2172 mCurrentDirty.set(dirty); 2173 mCurrentDirty.union(mPreviousDirty); 2174 mPreviousDirty.set(dirty); 2175 dirty.setEmpty(); 2176 2177 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2178 animating ? null : mCurrentDirty)) { 2179 mPreviousDirty.set(0, 0, mWidth, mHeight); 2180 } 2181 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2182 return; 2183 } 2184 } 2185 2186 if (animating) { 2187 mFullRedrawNeeded = true; 2188 scheduleTraversals(); 2189 } 2190 } 2191 2192 /** 2193 * @return true if drawing was succesfull, false if an error occurred 2194 */ 2195 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2196 boolean scalingRequired, Rect dirty) { 2197 2198 // If we get here with a disabled & requested hardware renderer, something went 2199 // wrong (an invalidate posted right before we destroyed the hardware surface 2200 // for instance) so we should just bail out. Locking the surface with software 2201 // rendering at this point would lock it forever and prevent hardware renderer 2202 // from doing its job when it comes back. 2203 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2204 attachInfo.mHardwareRenderer.isRequested()) { 2205 mFullRedrawNeeded = true; 2206 scheduleTraversals(); 2207 return false; 2208 } 2209 2210 // Draw with software renderer. 2211 Canvas canvas; 2212 try { 2213 int left = dirty.left; 2214 int top = dirty.top; 2215 int right = dirty.right; 2216 int bottom = dirty.bottom; 2217 2218 canvas = mSurface.lockCanvas(dirty); 2219 2220 if (left != dirty.left || top != dirty.top || right != dirty.right || 2221 bottom != dirty.bottom) { 2222 attachInfo.mIgnoreDirtyState = true; 2223 } 2224 2225 // TODO: Do this in native 2226 canvas.setDensity(mDensity); 2227 } catch (Surface.OutOfResourcesException e) { 2228 Log.e(TAG, "OutOfResourcesException locking surface", e); 2229 try { 2230 if (!mWindowSession.outOfMemory(mWindow)) { 2231 Slog.w(TAG, "No processes killed for memory; killing self"); 2232 Process.killProcess(Process.myPid()); 2233 } 2234 } catch (RemoteException ex) { 2235 } 2236 mLayoutRequested = true; // ask wm for a new surface next time. 2237 return false; 2238 } catch (IllegalArgumentException e) { 2239 Log.e(TAG, "Could not lock surface", e); 2240 // Don't assume this is due to out of memory, it could be 2241 // something else, and if it is something else then we could 2242 // kill stuff (or ourself) for no reason. 2243 mLayoutRequested = true; // ask wm for a new surface next time. 2244 return false; 2245 } 2246 2247 try { 2248 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2249 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2250 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2251 //canvas.drawARGB(255, 255, 0, 0); 2252 } 2253 2254 // If this bitmap's format includes an alpha channel, we 2255 // need to clear it before drawing so that the child will 2256 // properly re-composite its drawing on a transparent 2257 // background. This automatically respects the clip/dirty region 2258 // or 2259 // If we are applying an offset, we need to clear the area 2260 // where the offset doesn't appear to avoid having garbage 2261 // left in the blank areas. 2262 if (!canvas.isOpaque() || yoff != 0) { 2263 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2264 } 2265 2266 dirty.setEmpty(); 2267 mIsAnimating = false; 2268 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2269 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2270 2271 if (DEBUG_DRAW) { 2272 Context cxt = mView.getContext(); 2273 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2274 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2275 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2276 } 2277 try { 2278 canvas.translate(0, -yoff); 2279 if (mTranslator != null) { 2280 mTranslator.translateCanvas(canvas); 2281 } 2282 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2283 attachInfo.mSetIgnoreDirtyState = false; 2284 2285 mView.draw(canvas); 2286 2287 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2288 } finally { 2289 if (!attachInfo.mSetIgnoreDirtyState) { 2290 // Only clear the flag if it was not set during the mView.draw() call 2291 attachInfo.mIgnoreDirtyState = false; 2292 } 2293 } 2294 } finally { 2295 try { 2296 surface.unlockCanvasAndPost(canvas); 2297 } catch (IllegalArgumentException e) { 2298 Log.e(TAG, "Could not unlock surface", e); 2299 mLayoutRequested = true; // ask wm for a new surface next time. 2300 //noinspection ReturnInsideFinallyBlock 2301 return false; 2302 } 2303 2304 if (LOCAL_LOGV) { 2305 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2306 } 2307 } 2308 return true; 2309 } 2310 2311 /** 2312 * We want to draw a highlight around the current accessibility focused. 2313 * Since adding a style for all possible view is not a viable option we 2314 * have this specialized drawing method. 2315 * 2316 * Note: We are doing this here to be able to draw the highlight for 2317 * virtual views in addition to real ones. 2318 * 2319 * @param canvas The canvas on which to draw. 2320 */ 2321 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2322 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2323 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2324 return; 2325 } 2326 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2327 return; 2328 } 2329 Drawable drawable = getAccessibilityFocusedDrawable(); 2330 if (drawable == null) { 2331 return; 2332 } 2333 AccessibilityNodeProvider provider = 2334 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2335 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2336 if (provider == null) { 2337 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2338 } else { 2339 if (mAccessibilityFocusedVirtualView == null) { 2340 return; 2341 } 2342 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2343 } 2344 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2345 drawable.setBounds(bounds); 2346 drawable.draw(canvas); 2347 } 2348 2349 private Drawable getAccessibilityFocusedDrawable() { 2350 if (mAttachInfo != null) { 2351 // Lazily load the accessibility focus drawable. 2352 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2353 TypedValue value = new TypedValue(); 2354 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2355 R.attr.accessibilityFocusedDrawable, value, true); 2356 if (resolved) { 2357 mAttachInfo.mAccessibilityFocusDrawable = 2358 mView.mContext.getResources().getDrawable(value.resourceId); 2359 } 2360 } 2361 return mAttachInfo.mAccessibilityFocusDrawable; 2362 } 2363 return null; 2364 } 2365 2366 void invalidateDisplayLists() { 2367 final ArrayList<DisplayList> displayLists = mDisplayLists; 2368 final int count = displayLists.size(); 2369 2370 for (int i = 0; i < count; i++) { 2371 final DisplayList displayList = displayLists.get(i); 2372 displayList.invalidate(); 2373 displayList.clear(); 2374 } 2375 2376 displayLists.clear(); 2377 } 2378 2379 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2380 final View.AttachInfo attachInfo = mAttachInfo; 2381 final Rect ci = attachInfo.mContentInsets; 2382 final Rect vi = attachInfo.mVisibleInsets; 2383 int scrollY = 0; 2384 boolean handled = false; 2385 2386 if (vi.left > ci.left || vi.top > ci.top 2387 || vi.right > ci.right || vi.bottom > ci.bottom) { 2388 // We'll assume that we aren't going to change the scroll 2389 // offset, since we want to avoid that unless it is actually 2390 // going to make the focus visible... otherwise we scroll 2391 // all over the place. 2392 scrollY = mScrollY; 2393 // We can be called for two different situations: during a draw, 2394 // to update the scroll position if the focus has changed (in which 2395 // case 'rectangle' is null), or in response to a 2396 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2397 // is non-null and we just want to scroll to whatever that 2398 // rectangle is). 2399 View focus = mRealFocusedView; 2400 2401 // When in touch mode, focus points to the previously focused view, 2402 // which may have been removed from the view hierarchy. The following 2403 // line checks whether the view is still in our hierarchy. 2404 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2405 mRealFocusedView = null; 2406 return false; 2407 } 2408 2409 if (focus != mLastScrolledFocus) { 2410 // If the focus has changed, then ignore any requests to scroll 2411 // to a rectangle; first we want to make sure the entire focus 2412 // view is visible. 2413 rectangle = null; 2414 } 2415 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2416 + " rectangle=" + rectangle + " ci=" + ci 2417 + " vi=" + vi); 2418 if (focus == mLastScrolledFocus && !mScrollMayChange 2419 && rectangle == null) { 2420 // Optimization: if the focus hasn't changed since last 2421 // time, and no layout has happened, then just leave things 2422 // as they are. 2423 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2424 + mScrollY + " vi=" + vi.toShortString()); 2425 } else if (focus != null) { 2426 // We need to determine if the currently focused view is 2427 // within the visible part of the window and, if not, apply 2428 // a pan so it can be seen. 2429 mLastScrolledFocus = focus; 2430 mScrollMayChange = false; 2431 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2432 // Try to find the rectangle from the focus view. 2433 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2434 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2435 + mView.getWidth() + " h=" + mView.getHeight() 2436 + " ci=" + ci.toShortString() 2437 + " vi=" + vi.toShortString()); 2438 if (rectangle == null) { 2439 focus.getFocusedRect(mTempRect); 2440 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2441 + ": focusRect=" + mTempRect.toShortString()); 2442 if (mView instanceof ViewGroup) { 2443 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2444 focus, mTempRect); 2445 } 2446 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2447 "Focus in window: focusRect=" 2448 + mTempRect.toShortString() 2449 + " visRect=" + mVisRect.toShortString()); 2450 } else { 2451 mTempRect.set(rectangle); 2452 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2453 "Request scroll to rect: " 2454 + mTempRect.toShortString() 2455 + " visRect=" + mVisRect.toShortString()); 2456 } 2457 if (mTempRect.intersect(mVisRect)) { 2458 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2459 "Focus window visible rect: " 2460 + mTempRect.toShortString()); 2461 if (mTempRect.height() > 2462 (mView.getHeight()-vi.top-vi.bottom)) { 2463 // If the focus simply is not going to fit, then 2464 // best is probably just to leave things as-is. 2465 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2466 "Too tall; leaving scrollY=" + scrollY); 2467 } else if ((mTempRect.top-scrollY) < vi.top) { 2468 scrollY -= vi.top - (mTempRect.top-scrollY); 2469 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2470 "Top covered; scrollY=" + scrollY); 2471 } else if ((mTempRect.bottom-scrollY) 2472 > (mView.getHeight()-vi.bottom)) { 2473 scrollY += (mTempRect.bottom-scrollY) 2474 - (mView.getHeight()-vi.bottom); 2475 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2476 "Bottom covered; scrollY=" + scrollY); 2477 } 2478 handled = true; 2479 } 2480 } 2481 } 2482 } 2483 2484 if (scrollY != mScrollY) { 2485 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2486 + mScrollY + " , new=" + scrollY); 2487 if (!immediate && mResizeBuffer == null) { 2488 if (mScroller == null) { 2489 mScroller = new Scroller(mView.getContext()); 2490 } 2491 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2492 } else if (mScroller != null) { 2493 mScroller.abortAnimation(); 2494 } 2495 mScrollY = scrollY; 2496 } 2497 2498 return handled; 2499 } 2500 2501 /** 2502 * @hide 2503 */ 2504 public View getAccessibilityFocusedHost() { 2505 return mAccessibilityFocusedHost; 2506 } 2507 2508 /** 2509 * @hide 2510 */ 2511 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2512 return mAccessibilityFocusedVirtualView; 2513 } 2514 2515 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2516 // If we have a virtual view with accessibility focus we need 2517 // to clear the focus and invalidate the virtual view bounds. 2518 if (mAccessibilityFocusedVirtualView != null) { 2519 2520 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2521 View focusHost = mAccessibilityFocusedHost; 2522 focusHost.clearAccessibilityFocusNoCallbacks(); 2523 2524 // Wipe the state of the current accessibility focus since 2525 // the call into the provider to clear accessibility focus 2526 // will fire an accessibility event which will end up calling 2527 // this method and we want to have clean state when this 2528 // invocation happens. 2529 mAccessibilityFocusedHost = null; 2530 mAccessibilityFocusedVirtualView = null; 2531 2532 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2533 if (provider != null) { 2534 // Invalidate the area of the cleared accessibility focus. 2535 focusNode.getBoundsInParent(mTempRect); 2536 focusHost.invalidate(mTempRect); 2537 // Clear accessibility focus in the virtual node. 2538 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2539 focusNode.getSourceNodeId()); 2540 provider.performAction(virtualNodeId, 2541 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2542 } 2543 focusNode.recycle(); 2544 } 2545 if (mAccessibilityFocusedHost != null) { 2546 // Clear accessibility focus in the view. 2547 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2548 } 2549 2550 // Set the new focus host and node. 2551 mAccessibilityFocusedHost = view; 2552 mAccessibilityFocusedVirtualView = node; 2553 } 2554 2555 public void requestChildFocus(View child, View focused) { 2556 checkThread(); 2557 2558 if (DEBUG_INPUT_RESIZE) { 2559 Log.v(TAG, "Request child focus: focus now " + focused); 2560 } 2561 2562 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2563 scheduleTraversals(); 2564 2565 mFocusedView = mRealFocusedView = focused; 2566 } 2567 2568 public void clearChildFocus(View child) { 2569 checkThread(); 2570 2571 if (DEBUG_INPUT_RESIZE) { 2572 Log.v(TAG, "Clearing child focus"); 2573 } 2574 2575 mOldFocusedView = mFocusedView; 2576 2577 // Invoke the listener only if there is no view to take focus 2578 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2579 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2580 } 2581 2582 mFocusedView = mRealFocusedView = null; 2583 } 2584 2585 @Override 2586 public ViewParent getParentForAccessibility() { 2587 return null; 2588 } 2589 2590 public void focusableViewAvailable(View v) { 2591 checkThread(); 2592 if (mView != null) { 2593 if (!mView.hasFocus()) { 2594 v.requestFocus(); 2595 } else { 2596 // the one case where will transfer focus away from the current one 2597 // is if the current view is a view group that prefers to give focus 2598 // to its children first AND the view is a descendant of it. 2599 mFocusedView = mView.findFocus(); 2600 boolean descendantsHaveDibsOnFocus = 2601 (mFocusedView instanceof ViewGroup) && 2602 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2603 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2604 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2605 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2606 v.requestFocus(); 2607 } 2608 } 2609 } 2610 } 2611 2612 public void recomputeViewAttributes(View child) { 2613 checkThread(); 2614 if (mView == child) { 2615 mAttachInfo.mRecomputeGlobalAttributes = true; 2616 if (!mWillDrawSoon) { 2617 scheduleTraversals(); 2618 } 2619 } 2620 } 2621 2622 void dispatchDetachedFromWindow() { 2623 if (mView != null && mView.mAttachInfo != null) { 2624 if (mAttachInfo.mHardwareRenderer != null && 2625 mAttachInfo.mHardwareRenderer.isEnabled()) { 2626 mAttachInfo.mHardwareRenderer.validate(); 2627 } 2628 mView.dispatchDetachedFromWindow(); 2629 } 2630 2631 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2632 mAccessibilityManager.removeAccessibilityStateChangeListener( 2633 mAccessibilityInteractionConnectionManager); 2634 removeSendWindowContentChangedCallback(); 2635 2636 destroyHardwareRenderer(); 2637 2638 setAccessibilityFocus(null, null); 2639 2640 mView = null; 2641 mAttachInfo.mRootView = null; 2642 mAttachInfo.mSurface = null; 2643 2644 mSurface.release(); 2645 2646 if (mInputQueueCallback != null && mInputQueue != null) { 2647 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2648 mInputQueueCallback = null; 2649 mInputQueue = null; 2650 } else if (mInputEventReceiver != null) { 2651 mInputEventReceiver.dispose(); 2652 mInputEventReceiver = null; 2653 } 2654 try { 2655 mWindowSession.remove(mWindow); 2656 } catch (RemoteException e) { 2657 } 2658 2659 // Dispose the input channel after removing the window so the Window Manager 2660 // doesn't interpret the input channel being closed as an abnormal termination. 2661 if (mInputChannel != null) { 2662 mInputChannel.dispose(); 2663 mInputChannel = null; 2664 } 2665 2666 unscheduleTraversals(); 2667 } 2668 2669 void updateConfiguration(Configuration config, boolean force) { 2670 if (DEBUG_CONFIGURATION) Log.v(TAG, 2671 "Applying new config to window " 2672 + mWindowAttributes.getTitle() 2673 + ": " + config); 2674 2675 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2676 if (ci != null) { 2677 config = new Configuration(config); 2678 ci.applyToConfiguration(mNoncompatDensity, config); 2679 } 2680 2681 synchronized (sConfigCallbacks) { 2682 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2683 sConfigCallbacks.get(i).onConfigurationChanged(config); 2684 } 2685 } 2686 if (mView != null) { 2687 // At this point the resources have been updated to 2688 // have the most recent config, whatever that is. Use 2689 // the one in them which may be newer. 2690 config = mView.getResources().getConfiguration(); 2691 if (force || mLastConfiguration.diff(config) != 0) { 2692 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2693 final int currentLayoutDirection = config.getLayoutDirection(); 2694 mLastConfiguration.setTo(config); 2695 if (lastLayoutDirection != currentLayoutDirection && 2696 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2697 mView.setLayoutDirection(currentLayoutDirection); 2698 } 2699 mView.dispatchConfigurationChanged(config); 2700 } 2701 } 2702 } 2703 2704 /** 2705 * Return true if child is an ancestor of parent, (or equal to the parent). 2706 */ 2707 public static boolean isViewDescendantOf(View child, View parent) { 2708 if (child == parent) { 2709 return true; 2710 } 2711 2712 final ViewParent theParent = child.getParent(); 2713 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2714 } 2715 2716 private static void forceLayout(View view) { 2717 view.forceLayout(); 2718 if (view instanceof ViewGroup) { 2719 ViewGroup group = (ViewGroup) view; 2720 final int count = group.getChildCount(); 2721 for (int i = 0; i < count; i++) { 2722 forceLayout(group.getChildAt(i)); 2723 } 2724 } 2725 } 2726 2727 private final static int MSG_INVALIDATE = 1; 2728 private final static int MSG_INVALIDATE_RECT = 2; 2729 private final static int MSG_DIE = 3; 2730 private final static int MSG_RESIZED = 4; 2731 private final static int MSG_RESIZED_REPORT = 5; 2732 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2733 private final static int MSG_DISPATCH_KEY = 7; 2734 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2735 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2736 private final static int MSG_IME_FINISHED_EVENT = 10; 2737 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2738 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2739 private final static int MSG_CHECK_FOCUS = 13; 2740 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2741 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2742 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2743 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2744 private final static int MSG_UPDATE_CONFIGURATION = 18; 2745 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2746 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2747 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2748 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2749 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2750 private final static int MSG_INVALIDATE_WORLD = 24; 2751 private final static int MSG_WINDOW_MOVED = 25; 2752 2753 final class ViewRootHandler extends Handler { 2754 @Override 2755 public String getMessageName(Message message) { 2756 switch (message.what) { 2757 case MSG_INVALIDATE: 2758 return "MSG_INVALIDATE"; 2759 case MSG_INVALIDATE_RECT: 2760 return "MSG_INVALIDATE_RECT"; 2761 case MSG_DIE: 2762 return "MSG_DIE"; 2763 case MSG_RESIZED: 2764 return "MSG_RESIZED"; 2765 case MSG_RESIZED_REPORT: 2766 return "MSG_RESIZED_REPORT"; 2767 case MSG_WINDOW_FOCUS_CHANGED: 2768 return "MSG_WINDOW_FOCUS_CHANGED"; 2769 case MSG_DISPATCH_KEY: 2770 return "MSG_DISPATCH_KEY"; 2771 case MSG_DISPATCH_APP_VISIBILITY: 2772 return "MSG_DISPATCH_APP_VISIBILITY"; 2773 case MSG_DISPATCH_GET_NEW_SURFACE: 2774 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2775 case MSG_IME_FINISHED_EVENT: 2776 return "MSG_IME_FINISHED_EVENT"; 2777 case MSG_DISPATCH_KEY_FROM_IME: 2778 return "MSG_DISPATCH_KEY_FROM_IME"; 2779 case MSG_FINISH_INPUT_CONNECTION: 2780 return "MSG_FINISH_INPUT_CONNECTION"; 2781 case MSG_CHECK_FOCUS: 2782 return "MSG_CHECK_FOCUS"; 2783 case MSG_CLOSE_SYSTEM_DIALOGS: 2784 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2785 case MSG_DISPATCH_DRAG_EVENT: 2786 return "MSG_DISPATCH_DRAG_EVENT"; 2787 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2788 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2789 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2790 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2791 case MSG_UPDATE_CONFIGURATION: 2792 return "MSG_UPDATE_CONFIGURATION"; 2793 case MSG_PROCESS_INPUT_EVENTS: 2794 return "MSG_PROCESS_INPUT_EVENTS"; 2795 case MSG_DISPATCH_SCREEN_STATE: 2796 return "MSG_DISPATCH_SCREEN_STATE"; 2797 case MSG_INVALIDATE_DISPLAY_LIST: 2798 return "MSG_INVALIDATE_DISPLAY_LIST"; 2799 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2800 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2801 case MSG_DISPATCH_DONE_ANIMATING: 2802 return "MSG_DISPATCH_DONE_ANIMATING"; 2803 case MSG_WINDOW_MOVED: 2804 return "MSG_WINDOW_MOVED"; 2805 } 2806 return super.getMessageName(message); 2807 } 2808 2809 @Override 2810 public void handleMessage(Message msg) { 2811 switch (msg.what) { 2812 case MSG_INVALIDATE: 2813 ((View) msg.obj).invalidate(); 2814 break; 2815 case MSG_INVALIDATE_RECT: 2816 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2817 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2818 info.release(); 2819 break; 2820 case MSG_IME_FINISHED_EVENT: 2821 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2822 break; 2823 case MSG_PROCESS_INPUT_EVENTS: 2824 mProcessInputEventsScheduled = false; 2825 doProcessInputEvents(); 2826 break; 2827 case MSG_DISPATCH_APP_VISIBILITY: 2828 handleAppVisibility(msg.arg1 != 0); 2829 break; 2830 case MSG_DISPATCH_GET_NEW_SURFACE: 2831 handleGetNewSurface(); 2832 break; 2833 case MSG_RESIZED: { 2834 // Recycled in the fall through... 2835 SomeArgs args = (SomeArgs) msg.obj; 2836 if (mWinFrame.equals(args.arg1) 2837 && mPendingContentInsets.equals(args.arg2) 2838 && mPendingVisibleInsets.equals(args.arg3) 2839 && args.arg4 == null) { 2840 break; 2841 } 2842 } // fall through... 2843 case MSG_RESIZED_REPORT: 2844 if (mAdded) { 2845 SomeArgs args = (SomeArgs) msg.obj; 2846 2847 Configuration config = (Configuration) args.arg4; 2848 if (config != null) { 2849 updateConfiguration(config, false); 2850 } 2851 2852 mWinFrame.set((Rect) args.arg1); 2853 mPendingContentInsets.set((Rect) args.arg2); 2854 mPendingVisibleInsets.set((Rect) args.arg3); 2855 2856 args.recycle(); 2857 2858 if (msg.what == MSG_RESIZED_REPORT) { 2859 mReportNextDraw = true; 2860 } 2861 2862 if (mView != null) { 2863 forceLayout(mView); 2864 } 2865 2866 requestLayout(); 2867 } 2868 break; 2869 case MSG_WINDOW_MOVED: 2870 if (mAdded) { 2871 final int w = mWinFrame.width(); 2872 final int h = mWinFrame.height(); 2873 final int l = msg.arg1; 2874 final int t = msg.arg2; 2875 mWinFrame.left = l; 2876 mWinFrame.right = l + w; 2877 mWinFrame.top = t; 2878 mWinFrame.bottom = t + h; 2879 2880 if (mView != null) { 2881 forceLayout(mView); 2882 } 2883 requestLayout(); 2884 } 2885 break; 2886 case MSG_WINDOW_FOCUS_CHANGED: { 2887 if (mAdded) { 2888 boolean hasWindowFocus = msg.arg1 != 0; 2889 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2890 2891 profileRendering(hasWindowFocus); 2892 2893 if (hasWindowFocus) { 2894 boolean inTouchMode = msg.arg2 != 0; 2895 ensureTouchModeLocally(inTouchMode); 2896 2897 if (mAttachInfo.mHardwareRenderer != null && 2898 mSurface != null && mSurface.isValid()) { 2899 mFullRedrawNeeded = true; 2900 try { 2901 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2902 mWidth, mHeight, mHolder.getSurface())) { 2903 mFullRedrawNeeded = true; 2904 } 2905 } catch (Surface.OutOfResourcesException e) { 2906 Log.e(TAG, "OutOfResourcesException locking surface", e); 2907 try { 2908 if (!mWindowSession.outOfMemory(mWindow)) { 2909 Slog.w(TAG, "No processes killed for memory; killing self"); 2910 Process.killProcess(Process.myPid()); 2911 } 2912 } catch (RemoteException ex) { 2913 } 2914 // Retry in a bit. 2915 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2916 return; 2917 } 2918 } 2919 } 2920 2921 mLastWasImTarget = WindowManager.LayoutParams 2922 .mayUseInputMethod(mWindowAttributes.flags); 2923 2924 InputMethodManager imm = InputMethodManager.peekInstance(); 2925 if (mView != null) { 2926 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2927 imm.startGettingWindowFocus(mView); 2928 } 2929 mAttachInfo.mKeyDispatchState.reset(); 2930 mView.dispatchWindowFocusChanged(hasWindowFocus); 2931 } 2932 2933 // Note: must be done after the focus change callbacks, 2934 // so all of the view state is set up correctly. 2935 if (hasWindowFocus) { 2936 if (imm != null && mLastWasImTarget) { 2937 imm.onWindowFocus(mView, mView.findFocus(), 2938 mWindowAttributes.softInputMode, 2939 !mHasHadWindowFocus, mWindowAttributes.flags); 2940 } 2941 // Clear the forward bit. We can just do this directly, since 2942 // the window manager doesn't care about it. 2943 mWindowAttributes.softInputMode &= 2944 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2945 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2946 .softInputMode &= 2947 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2948 mHasHadWindowFocus = true; 2949 } 2950 2951 setAccessibilityFocus(null, null); 2952 2953 if (mView != null && mAccessibilityManager.isEnabled()) { 2954 if (hasWindowFocus) { 2955 mView.sendAccessibilityEvent( 2956 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2957 } 2958 } 2959 } 2960 } break; 2961 case MSG_DIE: 2962 doDie(); 2963 break; 2964 case MSG_DISPATCH_KEY: { 2965 KeyEvent event = (KeyEvent)msg.obj; 2966 enqueueInputEvent(event, null, 0, true); 2967 } break; 2968 case MSG_DISPATCH_KEY_FROM_IME: { 2969 if (LOCAL_LOGV) Log.v( 2970 TAG, "Dispatching key " 2971 + msg.obj + " from IME to " + mView); 2972 KeyEvent event = (KeyEvent)msg.obj; 2973 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2974 // The IME is trying to say this event is from the 2975 // system! Bad bad bad! 2976 //noinspection UnusedAssignment 2977 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2978 } 2979 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2980 } break; 2981 case MSG_FINISH_INPUT_CONNECTION: { 2982 InputMethodManager imm = InputMethodManager.peekInstance(); 2983 if (imm != null) { 2984 imm.reportFinishInputConnection((InputConnection)msg.obj); 2985 } 2986 } break; 2987 case MSG_CHECK_FOCUS: { 2988 InputMethodManager imm = InputMethodManager.peekInstance(); 2989 if (imm != null) { 2990 imm.checkFocus(); 2991 } 2992 } break; 2993 case MSG_CLOSE_SYSTEM_DIALOGS: { 2994 if (mView != null) { 2995 mView.onCloseSystemDialogs((String)msg.obj); 2996 } 2997 } break; 2998 case MSG_DISPATCH_DRAG_EVENT: 2999 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3000 DragEvent event = (DragEvent)msg.obj; 3001 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3002 handleDragEvent(event); 3003 } break; 3004 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3005 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3006 } break; 3007 case MSG_UPDATE_CONFIGURATION: { 3008 Configuration config = (Configuration)msg.obj; 3009 if (config.isOtherSeqNewer(mLastConfiguration)) { 3010 config = mLastConfiguration; 3011 } 3012 updateConfiguration(config, false); 3013 } break; 3014 case MSG_DISPATCH_SCREEN_STATE: { 3015 if (mView != null) { 3016 handleScreenStateChange(msg.arg1 == 1); 3017 } 3018 } break; 3019 case MSG_INVALIDATE_DISPLAY_LIST: { 3020 invalidateDisplayLists(); 3021 } break; 3022 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3023 setAccessibilityFocus(null, null); 3024 } break; 3025 case MSG_DISPATCH_DONE_ANIMATING: { 3026 handleDispatchDoneAnimating(); 3027 } break; 3028 case MSG_INVALIDATE_WORLD: { 3029 if (mView != null) { 3030 invalidateWorld(mView); 3031 } 3032 } break; 3033 } 3034 } 3035 } 3036 3037 final ViewRootHandler mHandler = new ViewRootHandler(); 3038 3039 /** 3040 * Something in the current window tells us we need to change the touch mode. For 3041 * example, we are not in touch mode, and the user touches the screen. 3042 * 3043 * If the touch mode has changed, tell the window manager, and handle it locally. 3044 * 3045 * @param inTouchMode Whether we want to be in touch mode. 3046 * @return True if the touch mode changed and focus changed was changed as a result 3047 */ 3048 boolean ensureTouchMode(boolean inTouchMode) { 3049 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3050 + "touch mode is " + mAttachInfo.mInTouchMode); 3051 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3052 3053 // tell the window manager 3054 try { 3055 mWindowSession.setInTouchMode(inTouchMode); 3056 } catch (RemoteException e) { 3057 throw new RuntimeException(e); 3058 } 3059 3060 // handle the change 3061 return ensureTouchModeLocally(inTouchMode); 3062 } 3063 3064 /** 3065 * Ensure that the touch mode for this window is set, and if it is changing, 3066 * take the appropriate action. 3067 * @param inTouchMode Whether we want to be in touch mode. 3068 * @return True if the touch mode changed and focus changed was changed as a result 3069 */ 3070 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3071 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3072 + "touch mode is " + mAttachInfo.mInTouchMode); 3073 3074 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3075 3076 mAttachInfo.mInTouchMode = inTouchMode; 3077 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3078 3079 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3080 } 3081 3082 private boolean enterTouchMode() { 3083 if (mView != null) { 3084 if (mView.hasFocus()) { 3085 // note: not relying on mFocusedView here because this could 3086 // be when the window is first being added, and mFocused isn't 3087 // set yet. 3088 final View focused = mView.findFocus(); 3089 if (focused != null && !focused.isFocusableInTouchMode()) { 3090 3091 final ViewGroup ancestorToTakeFocus = 3092 findAncestorToTakeFocusInTouchMode(focused); 3093 if (ancestorToTakeFocus != null) { 3094 // there is an ancestor that wants focus after its descendants that 3095 // is focusable in touch mode.. give it focus 3096 return ancestorToTakeFocus.requestFocus(); 3097 } else { 3098 // nothing appropriate to have focus in touch mode, clear it out 3099 mView.unFocus(); 3100 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3101 mFocusedView = null; 3102 mOldFocusedView = null; 3103 return true; 3104 } 3105 } 3106 } 3107 } 3108 return false; 3109 } 3110 3111 /** 3112 * Find an ancestor of focused that wants focus after its descendants and is 3113 * focusable in touch mode. 3114 * @param focused The currently focused view. 3115 * @return An appropriate view, or null if no such view exists. 3116 */ 3117 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3118 ViewParent parent = focused.getParent(); 3119 while (parent instanceof ViewGroup) { 3120 final ViewGroup vgParent = (ViewGroup) parent; 3121 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3122 && vgParent.isFocusableInTouchMode()) { 3123 return vgParent; 3124 } 3125 if (vgParent.isRootNamespace()) { 3126 return null; 3127 } else { 3128 parent = vgParent.getParent(); 3129 } 3130 } 3131 return null; 3132 } 3133 3134 private boolean leaveTouchMode() { 3135 if (mView != null) { 3136 if (mView.hasFocus()) { 3137 // i learned the hard way to not trust mFocusedView :) 3138 mFocusedView = mView.findFocus(); 3139 if (!(mFocusedView instanceof ViewGroup)) { 3140 // some view has focus, let it keep it 3141 return false; 3142 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3143 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3144 // some view group has focus, and doesn't prefer its children 3145 // over itself for focus, so let them keep it. 3146 return false; 3147 } 3148 } 3149 3150 // find the best view to give focus to in this brave new non-touch-mode 3151 // world 3152 final View focused = focusSearch(null, View.FOCUS_DOWN); 3153 if (focused != null) { 3154 return focused.requestFocus(View.FOCUS_DOWN); 3155 } 3156 } 3157 return false; 3158 } 3159 3160 private void deliverInputEvent(QueuedInputEvent q) { 3161 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3162 try { 3163 if (q.mEvent instanceof KeyEvent) { 3164 deliverKeyEvent(q); 3165 } else { 3166 final int source = q.mEvent.getSource(); 3167 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3168 deliverPointerEvent(q); 3169 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3170 deliverTrackballEvent(q); 3171 } else { 3172 deliverGenericMotionEvent(q); 3173 } 3174 } 3175 } finally { 3176 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3177 } 3178 } 3179 3180 private void deliverPointerEvent(QueuedInputEvent q) { 3181 final MotionEvent event = (MotionEvent)q.mEvent; 3182 final boolean isTouchEvent = event.isTouchEvent(); 3183 if (mInputEventConsistencyVerifier != null) { 3184 if (isTouchEvent) { 3185 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3186 } else { 3187 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3188 } 3189 } 3190 3191 // If there is no view, then the event will not be handled. 3192 if (mView == null || !mAdded) { 3193 finishInputEvent(q, false); 3194 return; 3195 } 3196 3197 // Translate the pointer event for compatibility, if needed. 3198 if (mTranslator != null) { 3199 mTranslator.translateEventInScreenToAppWindow(event); 3200 } 3201 3202 // Enter touch mode on down or scroll. 3203 final int action = event.getAction(); 3204 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3205 ensureTouchMode(true); 3206 } 3207 3208 // Offset the scroll position. 3209 if (mCurScrollY != 0) { 3210 event.offsetLocation(0, mCurScrollY); 3211 } 3212 if (MEASURE_LATENCY) { 3213 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3214 } 3215 3216 // Remember the touch position for possible drag-initiation. 3217 if (isTouchEvent) { 3218 mLastTouchPoint.x = event.getRawX(); 3219 mLastTouchPoint.y = event.getRawY(); 3220 } 3221 3222 // Dispatch touch to view hierarchy. 3223 boolean handled = mView.dispatchPointerEvent(event); 3224 if (MEASURE_LATENCY) { 3225 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3226 } 3227 if (handled) { 3228 finishInputEvent(q, true); 3229 return; 3230 } 3231 3232 // Pointer event was unhandled. 3233 finishInputEvent(q, false); 3234 } 3235 3236 private void deliverTrackballEvent(QueuedInputEvent q) { 3237 final MotionEvent event = (MotionEvent)q.mEvent; 3238 if (mInputEventConsistencyVerifier != null) { 3239 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3240 } 3241 3242 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3243 if (LOCAL_LOGV) 3244 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3245 3246 // Dispatch to the IME before propagating down the view hierarchy. 3247 // The IME will eventually call back into handleImeFinishedEvent. 3248 if (mLastWasImTarget) { 3249 InputMethodManager imm = InputMethodManager.peekInstance(); 3250 if (imm != null) { 3251 final int seq = event.getSequenceNumber(); 3252 if (DEBUG_IMF) 3253 Log.v(TAG, "Sending trackball event to IME: seq=" 3254 + seq + " event=" + event); 3255 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3256 mInputMethodCallback); 3257 return; 3258 } 3259 } 3260 } 3261 3262 // Not dispatching to IME, continue with post IME actions. 3263 deliverTrackballEventPostIme(q); 3264 } 3265 3266 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3267 final MotionEvent event = (MotionEvent) q.mEvent; 3268 3269 // If there is no view, then the event will not be handled. 3270 if (mView == null || !mAdded) { 3271 finishInputEvent(q, false); 3272 return; 3273 } 3274 3275 // Deliver the trackball event to the view. 3276 if (mView.dispatchTrackballEvent(event)) { 3277 // If we reach this, we delivered a trackball event to mView and 3278 // mView consumed it. Because we will not translate the trackball 3279 // event into a key event, touch mode will not exit, so we exit 3280 // touch mode here. 3281 ensureTouchMode(false); 3282 3283 finishInputEvent(q, true); 3284 mLastTrackballTime = Integer.MIN_VALUE; 3285 return; 3286 } 3287 3288 // Translate the trackball event into DPAD keys and try to deliver those. 3289 final TrackballAxis x = mTrackballAxisX; 3290 final TrackballAxis y = mTrackballAxisY; 3291 3292 long curTime = SystemClock.uptimeMillis(); 3293 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3294 // It has been too long since the last movement, 3295 // so restart at the beginning. 3296 x.reset(0); 3297 y.reset(0); 3298 mLastTrackballTime = curTime; 3299 } 3300 3301 final int action = event.getAction(); 3302 final int metaState = event.getMetaState(); 3303 switch (action) { 3304 case MotionEvent.ACTION_DOWN: 3305 x.reset(2); 3306 y.reset(2); 3307 enqueueInputEvent(new KeyEvent(curTime, curTime, 3308 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3309 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3310 InputDevice.SOURCE_KEYBOARD)); 3311 break; 3312 case MotionEvent.ACTION_UP: 3313 x.reset(2); 3314 y.reset(2); 3315 enqueueInputEvent(new KeyEvent(curTime, curTime, 3316 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3317 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3318 InputDevice.SOURCE_KEYBOARD)); 3319 break; 3320 } 3321 3322 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3323 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3324 + " move=" + event.getX() 3325 + " / Y=" + y.position + " step=" 3326 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3327 + " move=" + event.getY()); 3328 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3329 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3330 3331 // Generate DPAD events based on the trackball movement. 3332 // We pick the axis that has moved the most as the direction of 3333 // the DPAD. When we generate DPAD events for one axis, then the 3334 // other axis is reset -- we don't want to perform DPAD jumps due 3335 // to slight movements in the trackball when making major movements 3336 // along the other axis. 3337 int keycode = 0; 3338 int movement = 0; 3339 float accel = 1; 3340 if (xOff > yOff) { 3341 movement = x.generate((2/event.getXPrecision())); 3342 if (movement != 0) { 3343 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3344 : KeyEvent.KEYCODE_DPAD_LEFT; 3345 accel = x.acceleration; 3346 y.reset(2); 3347 } 3348 } else if (yOff > 0) { 3349 movement = y.generate((2/event.getYPrecision())); 3350 if (movement != 0) { 3351 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3352 : KeyEvent.KEYCODE_DPAD_UP; 3353 accel = y.acceleration; 3354 x.reset(2); 3355 } 3356 } 3357 3358 if (keycode != 0) { 3359 if (movement < 0) movement = -movement; 3360 int accelMovement = (int)(movement * accel); 3361 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3362 + " accelMovement=" + accelMovement 3363 + " accel=" + accel); 3364 if (accelMovement > movement) { 3365 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3366 + keycode); 3367 movement--; 3368 int repeatCount = accelMovement - movement; 3369 enqueueInputEvent(new KeyEvent(curTime, curTime, 3370 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3371 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3372 InputDevice.SOURCE_KEYBOARD)); 3373 } 3374 while (movement > 0) { 3375 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3376 + keycode); 3377 movement--; 3378 curTime = SystemClock.uptimeMillis(); 3379 enqueueInputEvent(new KeyEvent(curTime, curTime, 3380 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3381 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3382 InputDevice.SOURCE_KEYBOARD)); 3383 enqueueInputEvent(new KeyEvent(curTime, curTime, 3384 KeyEvent.ACTION_UP, keycode, 0, metaState, 3385 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3386 InputDevice.SOURCE_KEYBOARD)); 3387 } 3388 mLastTrackballTime = curTime; 3389 } 3390 3391 // Unfortunately we can't tell whether the application consumed the keys, so 3392 // we always consider the trackball event handled. 3393 finishInputEvent(q, true); 3394 } 3395 3396 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3397 final MotionEvent event = (MotionEvent)q.mEvent; 3398 if (mInputEventConsistencyVerifier != null) { 3399 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3400 } 3401 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3402 if (LOCAL_LOGV) 3403 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3404 3405 // Dispatch to the IME before propagating down the view hierarchy. 3406 // The IME will eventually call back into handleImeFinishedEvent. 3407 if (mLastWasImTarget) { 3408 InputMethodManager imm = InputMethodManager.peekInstance(); 3409 if (imm != null) { 3410 final int seq = event.getSequenceNumber(); 3411 if (DEBUG_IMF) 3412 Log.v(TAG, "Sending generic motion event to IME: seq=" 3413 + seq + " event=" + event); 3414 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3415 mInputMethodCallback); 3416 return; 3417 } 3418 } 3419 } 3420 3421 // Not dispatching to IME, continue with post IME actions. 3422 deliverGenericMotionEventPostIme(q); 3423 } 3424 3425 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3426 final MotionEvent event = (MotionEvent) q.mEvent; 3427 final int source = event.getSource(); 3428 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3429 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3430 3431 // If there is no view, then the event will not be handled. 3432 if (mView == null || !mAdded) { 3433 if (isJoystick) { 3434 updateJoystickDirection(event, false); 3435 } else if (isTouchPad) { 3436 //Convert TouchPad motion into a TrackBall event 3437 mSimulatedTrackball.updateTrackballDirection(this, event); 3438 } 3439 finishInputEvent(q, false); 3440 return; 3441 } 3442 3443 // Deliver the event to the view. 3444 if (mView.dispatchGenericMotionEvent(event)) { 3445 if (isJoystick) { 3446 updateJoystickDirection(event, false); 3447 } else if (isTouchPad) { 3448 //Convert TouchPad motion into a TrackBall event 3449 mSimulatedTrackball.updateTrackballDirection(this, event); 3450 } 3451 finishInputEvent(q, true); 3452 return; 3453 } 3454 3455 if (isJoystick) { 3456 // Translate the joystick event into DPAD keys and try to deliver 3457 // those. 3458 updateJoystickDirection(event, true); 3459 finishInputEvent(q, true); 3460 } else if (isTouchPad) { 3461 //Convert TouchPad motion into a TrackBall event 3462 mSimulatedTrackball.updateTrackballDirection(this, event); 3463 finishInputEvent(q, true); 3464 } else { 3465 finishInputEvent(q, false); 3466 } 3467 } 3468 3469 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3470 final long time = event.getEventTime(); 3471 final int metaState = event.getMetaState(); 3472 final int deviceId = event.getDeviceId(); 3473 final int source = event.getSource(); 3474 3475 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3476 if (xDirection == 0) { 3477 xDirection = joystickAxisValueToDirection(event.getX()); 3478 } 3479 3480 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3481 if (yDirection == 0) { 3482 yDirection = joystickAxisValueToDirection(event.getY()); 3483 } 3484 3485 if (xDirection != mLastJoystickXDirection) { 3486 if (mLastJoystickXKeyCode != 0) { 3487 enqueueInputEvent(new KeyEvent(time, time, 3488 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3489 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3490 mLastJoystickXKeyCode = 0; 3491 } 3492 3493 mLastJoystickXDirection = xDirection; 3494 3495 if (xDirection != 0 && synthesizeNewKeys) { 3496 mLastJoystickXKeyCode = xDirection > 0 3497 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3498 enqueueInputEvent(new KeyEvent(time, time, 3499 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3500 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3501 } 3502 } 3503 3504 if (yDirection != mLastJoystickYDirection) { 3505 if (mLastJoystickYKeyCode != 0) { 3506 enqueueInputEvent(new KeyEvent(time, time, 3507 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3508 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3509 mLastJoystickYKeyCode = 0; 3510 } 3511 3512 mLastJoystickYDirection = yDirection; 3513 3514 if (yDirection != 0 && synthesizeNewKeys) { 3515 mLastJoystickYKeyCode = yDirection > 0 3516 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3517 enqueueInputEvent(new KeyEvent(time, time, 3518 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3519 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3520 } 3521 } 3522 } 3523 3524 private static int joystickAxisValueToDirection(float value) { 3525 if (value >= 0.5f) { 3526 return 1; 3527 } else if (value <= -0.5f) { 3528 return -1; 3529 } else { 3530 return 0; 3531 } 3532 } 3533 3534 /** 3535 * Returns true if the key is used for keyboard navigation. 3536 * @param keyEvent The key event. 3537 * @return True if the key is used for keyboard navigation. 3538 */ 3539 private static boolean isNavigationKey(KeyEvent keyEvent) { 3540 switch (keyEvent.getKeyCode()) { 3541 case KeyEvent.KEYCODE_DPAD_LEFT: 3542 case KeyEvent.KEYCODE_DPAD_RIGHT: 3543 case KeyEvent.KEYCODE_DPAD_UP: 3544 case KeyEvent.KEYCODE_DPAD_DOWN: 3545 case KeyEvent.KEYCODE_DPAD_CENTER: 3546 case KeyEvent.KEYCODE_PAGE_UP: 3547 case KeyEvent.KEYCODE_PAGE_DOWN: 3548 case KeyEvent.KEYCODE_MOVE_HOME: 3549 case KeyEvent.KEYCODE_MOVE_END: 3550 case KeyEvent.KEYCODE_TAB: 3551 case KeyEvent.KEYCODE_SPACE: 3552 case KeyEvent.KEYCODE_ENTER: 3553 return true; 3554 } 3555 return false; 3556 } 3557 3558 /** 3559 * Returns true if the key is used for typing. 3560 * @param keyEvent The key event. 3561 * @return True if the key is used for typing. 3562 */ 3563 private static boolean isTypingKey(KeyEvent keyEvent) { 3564 return keyEvent.getUnicodeChar() > 0; 3565 } 3566 3567 /** 3568 * See if the key event means we should leave touch mode (and leave touch mode if so). 3569 * @param event The key event. 3570 * @return Whether this key event should be consumed (meaning the act of 3571 * leaving touch mode alone is considered the event). 3572 */ 3573 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3574 // Only relevant in touch mode. 3575 if (!mAttachInfo.mInTouchMode) { 3576 return false; 3577 } 3578 3579 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3580 final int action = event.getAction(); 3581 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3582 return false; 3583 } 3584 3585 // Don't leave touch mode if the IME told us not to. 3586 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3587 return false; 3588 } 3589 3590 // If the key can be used for keyboard navigation then leave touch mode 3591 // and select a focused view if needed (in ensureTouchMode). 3592 // When a new focused view is selected, we consume the navigation key because 3593 // navigation doesn't make much sense unless a view already has focus so 3594 // the key's purpose is to set focus. 3595 if (isNavigationKey(event)) { 3596 return ensureTouchMode(false); 3597 } 3598 3599 // If the key can be used for typing then leave touch mode 3600 // and select a focused view if needed (in ensureTouchMode). 3601 // Always allow the view to process the typing key. 3602 if (isTypingKey(event)) { 3603 ensureTouchMode(false); 3604 return false; 3605 } 3606 3607 return false; 3608 } 3609 3610 private void deliverKeyEvent(QueuedInputEvent q) { 3611 final KeyEvent event = (KeyEvent)q.mEvent; 3612 if (mInputEventConsistencyVerifier != null) { 3613 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3614 } 3615 3616 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3617 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3618 3619 // Perform predispatching before the IME. 3620 if (mView.dispatchKeyEventPreIme(event)) { 3621 finishInputEvent(q, true); 3622 return; 3623 } 3624 3625 // Dispatch to the IME before propagating down the view hierarchy. 3626 // The IME will eventually call back into handleImeFinishedEvent. 3627 if (mLastWasImTarget) { 3628 InputMethodManager imm = InputMethodManager.peekInstance(); 3629 if (imm != null) { 3630 final int seq = event.getSequenceNumber(); 3631 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3632 + seq + " event=" + event); 3633 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3634 return; 3635 } 3636 } 3637 } 3638 3639 // Not dispatching to IME, continue with post IME actions. 3640 deliverKeyEventPostIme(q); 3641 } 3642 3643 void handleImeFinishedEvent(int seq, boolean handled) { 3644 final QueuedInputEvent q = mCurrentInputEvent; 3645 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3646 if (DEBUG_IMF) { 3647 Log.v(TAG, "IME finished event: seq=" + seq 3648 + " handled=" + handled + " event=" + q); 3649 } 3650 if (handled) { 3651 finishInputEvent(q, true); 3652 } else { 3653 if (q.mEvent instanceof KeyEvent) { 3654 KeyEvent event = (KeyEvent)q.mEvent; 3655 if (event.getAction() != KeyEvent.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 deliverKeyEventPostIme(q); 3666 } else { 3667 MotionEvent event = (MotionEvent)q.mEvent; 3668 if (event.getAction() != MotionEvent.ACTION_CANCEL 3669 && event.getAction() != MotionEvent.ACTION_UP) { 3670 // If the window doesn't currently have input focus, then drop 3671 // this event. This could be an event that came back from the 3672 // IME dispatch but the window has lost focus in the meantime. 3673 if (!mAttachInfo.mHasWindowFocus) { 3674 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3675 finishInputEvent(q, true); 3676 return; 3677 } 3678 } 3679 final int source = q.mEvent.getSource(); 3680 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3681 deliverTrackballEventPostIme(q); 3682 } else { 3683 deliverGenericMotionEventPostIme(q); 3684 } 3685 } 3686 } 3687 } else { 3688 if (DEBUG_IMF) { 3689 Log.v(TAG, "IME finished event: seq=" + seq 3690 + " handled=" + handled + ", event not found!"); 3691 } 3692 } 3693 } 3694 3695 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3696 final KeyEvent event = (KeyEvent)q.mEvent; 3697 3698 // If the view went away, then the event will not be handled. 3699 if (mView == null || !mAdded) { 3700 finishInputEvent(q, false); 3701 return; 3702 } 3703 3704 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3705 if (checkForLeavingTouchModeAndConsume(event)) { 3706 finishInputEvent(q, true); 3707 return; 3708 } 3709 3710 // Make sure the fallback event policy sees all keys that will be delivered to the 3711 // view hierarchy. 3712 mFallbackEventHandler.preDispatchKeyEvent(event); 3713 3714 // Deliver the key to the view hierarchy. 3715 if (mView.dispatchKeyEvent(event)) { 3716 finishInputEvent(q, true); 3717 return; 3718 } 3719 3720 // If the Control modifier is held, try to interpret the key as a shortcut. 3721 if (event.getAction() == KeyEvent.ACTION_DOWN 3722 && event.isCtrlPressed() 3723 && event.getRepeatCount() == 0 3724 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3725 if (mView.dispatchKeyShortcutEvent(event)) { 3726 finishInputEvent(q, true); 3727 return; 3728 } 3729 } 3730 3731 // Apply the fallback event policy. 3732 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3733 finishInputEvent(q, true); 3734 return; 3735 } 3736 3737 // Handle automatic focus changes. 3738 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3739 int direction = 0; 3740 switch (event.getKeyCode()) { 3741 case KeyEvent.KEYCODE_DPAD_LEFT: 3742 if (event.hasNoModifiers()) { 3743 direction = View.FOCUS_LEFT; 3744 } 3745 break; 3746 case KeyEvent.KEYCODE_DPAD_RIGHT: 3747 if (event.hasNoModifiers()) { 3748 direction = View.FOCUS_RIGHT; 3749 } 3750 break; 3751 case KeyEvent.KEYCODE_DPAD_UP: 3752 if (event.hasNoModifiers()) { 3753 direction = View.FOCUS_UP; 3754 } 3755 break; 3756 case KeyEvent.KEYCODE_DPAD_DOWN: 3757 if (event.hasNoModifiers()) { 3758 direction = View.FOCUS_DOWN; 3759 } 3760 break; 3761 case KeyEvent.KEYCODE_TAB: 3762 if (event.hasNoModifiers()) { 3763 direction = View.FOCUS_FORWARD; 3764 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3765 direction = View.FOCUS_BACKWARD; 3766 } 3767 break; 3768 } 3769 if (direction != 0) { 3770 View focused = mView.findFocus(); 3771 if (focused != null) { 3772 View v = focused.focusSearch(direction); 3773 if (v != null && v != focused) { 3774 // do the math the get the interesting rect 3775 // of previous focused into the coord system of 3776 // newly focused view 3777 focused.getFocusedRect(mTempRect); 3778 if (mView instanceof ViewGroup) { 3779 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3780 focused, mTempRect); 3781 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3782 v, mTempRect); 3783 } 3784 if (v.requestFocus(direction, mTempRect)) { 3785 playSoundEffect(SoundEffectConstants 3786 .getContantForFocusDirection(direction)); 3787 finishInputEvent(q, true); 3788 return; 3789 } 3790 } 3791 3792 // Give the focused view a last chance to handle the dpad key. 3793 if (mView.dispatchUnhandledMove(focused, direction)) { 3794 finishInputEvent(q, true); 3795 return; 3796 } 3797 } 3798 } 3799 } 3800 3801 // Key was unhandled. 3802 finishInputEvent(q, false); 3803 } 3804 3805 /* drag/drop */ 3806 void setLocalDragState(Object obj) { 3807 mLocalDragState = obj; 3808 } 3809 3810 private void handleDragEvent(DragEvent event) { 3811 // From the root, only drag start/end/location are dispatched. entered/exited 3812 // are determined and dispatched by the viewgroup hierarchy, who then report 3813 // that back here for ultimate reporting back to the framework. 3814 if (mView != null && mAdded) { 3815 final int what = event.mAction; 3816 3817 if (what == DragEvent.ACTION_DRAG_EXITED) { 3818 // A direct EXITED event means that the window manager knows we've just crossed 3819 // a window boundary, so the current drag target within this one must have 3820 // just been exited. Send it the usual notifications and then we're done 3821 // for now. 3822 mView.dispatchDragEvent(event); 3823 } else { 3824 // Cache the drag description when the operation starts, then fill it in 3825 // on subsequent calls as a convenience 3826 if (what == DragEvent.ACTION_DRAG_STARTED) { 3827 mCurrentDragView = null; // Start the current-recipient tracking 3828 mDragDescription = event.mClipDescription; 3829 } else { 3830 event.mClipDescription = mDragDescription; 3831 } 3832 3833 // For events with a [screen] location, translate into window coordinates 3834 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3835 mDragPoint.set(event.mX, event.mY); 3836 if (mTranslator != null) { 3837 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3838 } 3839 3840 if (mCurScrollY != 0) { 3841 mDragPoint.offset(0, mCurScrollY); 3842 } 3843 3844 event.mX = mDragPoint.x; 3845 event.mY = mDragPoint.y; 3846 } 3847 3848 // Remember who the current drag target is pre-dispatch 3849 final View prevDragView = mCurrentDragView; 3850 3851 // Now dispatch the drag/drop event 3852 boolean result = mView.dispatchDragEvent(event); 3853 3854 // If we changed apparent drag target, tell the OS about it 3855 if (prevDragView != mCurrentDragView) { 3856 try { 3857 if (prevDragView != null) { 3858 mWindowSession.dragRecipientExited(mWindow); 3859 } 3860 if (mCurrentDragView != null) { 3861 mWindowSession.dragRecipientEntered(mWindow); 3862 } 3863 } catch (RemoteException e) { 3864 Slog.e(TAG, "Unable to note drag target change"); 3865 } 3866 } 3867 3868 // Report the drop result when we're done 3869 if (what == DragEvent.ACTION_DROP) { 3870 mDragDescription = null; 3871 try { 3872 Log.i(TAG, "Reporting drop result: " + result); 3873 mWindowSession.reportDropResult(mWindow, result); 3874 } catch (RemoteException e) { 3875 Log.e(TAG, "Unable to report drop result"); 3876 } 3877 } 3878 3879 // When the drag operation ends, release any local state object 3880 // that may have been in use 3881 if (what == DragEvent.ACTION_DRAG_ENDED) { 3882 setLocalDragState(null); 3883 } 3884 } 3885 } 3886 event.recycle(); 3887 } 3888 3889 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3890 if (mSeq != args.seq) { 3891 // The sequence has changed, so we need to update our value and make 3892 // sure to do a traversal afterward so the window manager is given our 3893 // most recent data. 3894 mSeq = args.seq; 3895 mAttachInfo.mForceReportNewAttributes = true; 3896 scheduleTraversals(); 3897 } 3898 if (mView == null) return; 3899 if (args.localChanges != 0) { 3900 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3901 } 3902 if (mAttachInfo != null) { 3903 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3904 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3905 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3906 mView.dispatchSystemUiVisibilityChanged(visibility); 3907 } 3908 } 3909 } 3910 3911 public void handleDispatchDoneAnimating() { 3912 if (mWindowsAnimating) { 3913 mWindowsAnimating = false; 3914 if (!mDirty.isEmpty() || mIsAnimating) { 3915 scheduleTraversals(); 3916 } 3917 } 3918 } 3919 3920 public void getLastTouchPoint(Point outLocation) { 3921 outLocation.x = (int) mLastTouchPoint.x; 3922 outLocation.y = (int) mLastTouchPoint.y; 3923 } 3924 3925 public void setDragFocus(View newDragTarget) { 3926 if (mCurrentDragView != newDragTarget) { 3927 mCurrentDragView = newDragTarget; 3928 } 3929 } 3930 3931 private AudioManager getAudioManager() { 3932 if (mView == null) { 3933 throw new IllegalStateException("getAudioManager called when there is no mView"); 3934 } 3935 if (mAudioManager == null) { 3936 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3937 } 3938 return mAudioManager; 3939 } 3940 3941 public AccessibilityInteractionController getAccessibilityInteractionController() { 3942 if (mView == null) { 3943 throw new IllegalStateException("getAccessibilityInteractionController" 3944 + " called when there is no mView"); 3945 } 3946 if (mAccessibilityInteractionController == null) { 3947 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3948 } 3949 return mAccessibilityInteractionController; 3950 } 3951 3952 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3953 boolean insetsPending) throws RemoteException { 3954 3955 float appScale = mAttachInfo.mApplicationScale; 3956 boolean restore = false; 3957 if (params != null && mTranslator != null) { 3958 restore = true; 3959 params.backup(); 3960 mTranslator.translateWindowLayout(params); 3961 } 3962 if (params != null) { 3963 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3964 } 3965 mPendingConfiguration.seq = 0; 3966 //Log.d(TAG, ">>>>>> CALLING relayout"); 3967 if (params != null && mOrigWindowType != params.type) { 3968 // For compatibility with old apps, don't crash here. 3969 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3970 Slog.w(TAG, "Window type can not be changed after " 3971 + "the window is added; ignoring change of " + mView); 3972 params.type = mOrigWindowType; 3973 } 3974 } 3975 int relayoutResult = mWindowSession.relayout( 3976 mWindow, mSeq, params, 3977 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3978 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3979 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 3980 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3981 mPendingConfiguration, mSurface); 3982 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3983 if (restore) { 3984 params.restore(); 3985 } 3986 3987 if (mTranslator != null) { 3988 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3989 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3990 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3991 } 3992 return relayoutResult; 3993 } 3994 3995 /** 3996 * {@inheritDoc} 3997 */ 3998 public void playSoundEffect(int effectId) { 3999 checkThread(); 4000 4001 try { 4002 final AudioManager audioManager = getAudioManager(); 4003 4004 switch (effectId) { 4005 case SoundEffectConstants.CLICK: 4006 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4007 return; 4008 case SoundEffectConstants.NAVIGATION_DOWN: 4009 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4010 return; 4011 case SoundEffectConstants.NAVIGATION_LEFT: 4012 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4013 return; 4014 case SoundEffectConstants.NAVIGATION_RIGHT: 4015 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4016 return; 4017 case SoundEffectConstants.NAVIGATION_UP: 4018 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4019 return; 4020 default: 4021 throw new IllegalArgumentException("unknown effect id " + effectId + 4022 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4023 } 4024 } catch (IllegalStateException e) { 4025 // Exception thrown by getAudioManager() when mView is null 4026 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4027 e.printStackTrace(); 4028 } 4029 } 4030 4031 /** 4032 * {@inheritDoc} 4033 */ 4034 public boolean performHapticFeedback(int effectId, boolean always) { 4035 try { 4036 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4037 } catch (RemoteException e) { 4038 return false; 4039 } 4040 } 4041 4042 /** 4043 * {@inheritDoc} 4044 */ 4045 public View focusSearch(View focused, int direction) { 4046 checkThread(); 4047 if (!(mView instanceof ViewGroup)) { 4048 return null; 4049 } 4050 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4051 } 4052 4053 public void debug() { 4054 mView.debug(); 4055 } 4056 4057 public void dumpGfxInfo(int[] info) { 4058 info[0] = info[1] = 0; 4059 if (mView != null) { 4060 getGfxInfo(mView, info); 4061 } 4062 } 4063 4064 private static void getGfxInfo(View view, int[] info) { 4065 DisplayList displayList = view.mDisplayList; 4066 info[0]++; 4067 if (displayList != null) { 4068 info[1] += displayList.getSize(); 4069 } 4070 4071 if (view instanceof ViewGroup) { 4072 ViewGroup group = (ViewGroup) view; 4073 4074 int count = group.getChildCount(); 4075 for (int i = 0; i < count; i++) { 4076 getGfxInfo(group.getChildAt(i), info); 4077 } 4078 } 4079 } 4080 4081 public void die(boolean immediate) { 4082 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4083 // done by dispatchDetachedFromWindow will cause havoc on return. 4084 if (immediate && !mIsInTraversal) { 4085 doDie(); 4086 } else { 4087 if (!mIsDrawing) { 4088 destroyHardwareRenderer(); 4089 } else { 4090 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4091 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4092 } 4093 mHandler.sendEmptyMessage(MSG_DIE); 4094 } 4095 } 4096 4097 void doDie() { 4098 checkThread(); 4099 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4100 synchronized (this) { 4101 if (mAdded) { 4102 dispatchDetachedFromWindow(); 4103 } 4104 4105 if (mAdded && !mFirst) { 4106 destroyHardwareRenderer(); 4107 4108 if (mView != null) { 4109 int viewVisibility = mView.getVisibility(); 4110 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4111 if (mWindowAttributesChanged || viewVisibilityChanged) { 4112 // If layout params have been changed, first give them 4113 // to the window manager to make sure it has the correct 4114 // animation info. 4115 try { 4116 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4117 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4118 mWindowSession.finishDrawing(mWindow); 4119 } 4120 } catch (RemoteException e) { 4121 } 4122 } 4123 4124 mSurface.release(); 4125 } 4126 } 4127 4128 mAdded = false; 4129 } 4130 } 4131 4132 public void requestUpdateConfiguration(Configuration config) { 4133 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4134 mHandler.sendMessage(msg); 4135 } 4136 4137 public void loadSystemProperties() { 4138 boolean layout = SystemProperties.getBoolean( 4139 View.DEBUG_LAYOUT_PROPERTY, false); 4140 if (layout != mAttachInfo.mDebugLayout) { 4141 mAttachInfo.mDebugLayout = layout; 4142 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4143 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4144 } 4145 } 4146 } 4147 4148 private void destroyHardwareRenderer() { 4149 AttachInfo attachInfo = mAttachInfo; 4150 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4151 4152 if (hardwareRenderer != null) { 4153 if (mView != null) { 4154 hardwareRenderer.destroyHardwareResources(mView); 4155 } 4156 hardwareRenderer.destroy(true); 4157 hardwareRenderer.setRequested(false); 4158 4159 attachInfo.mHardwareRenderer = null; 4160 attachInfo.mHardwareAccelerated = false; 4161 } 4162 } 4163 4164 void dispatchImeFinishedEvent(int seq, boolean handled) { 4165 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4166 msg.arg1 = seq; 4167 msg.arg2 = handled ? 1 : 0; 4168 msg.setAsynchronous(true); 4169 mHandler.sendMessage(msg); 4170 } 4171 4172 public void dispatchFinishInputConnection(InputConnection connection) { 4173 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4174 mHandler.sendMessage(msg); 4175 } 4176 4177 public void dispatchResized(Rect frame, Rect contentInsets, 4178 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4179 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4180 + " contentInsets=" + contentInsets.toShortString() 4181 + " visibleInsets=" + visibleInsets.toShortString() 4182 + " reportDraw=" + reportDraw); 4183 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4184 if (mTranslator != null) { 4185 mTranslator.translateRectInScreenToAppWindow(frame); 4186 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4187 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4188 } 4189 SomeArgs args = SomeArgs.obtain(); 4190 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4191 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4192 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4193 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4194 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4195 msg.obj = args; 4196 mHandler.sendMessage(msg); 4197 } 4198 4199 public void dispatchMoved(int newX, int newY) { 4200 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4201 if (mTranslator != null) { 4202 PointF point = new PointF(newX, newY); 4203 mTranslator.translatePointInScreenToAppWindow(point); 4204 newX = (int) (point.x + 0.5); 4205 newY = (int) (point.y + 0.5); 4206 } 4207 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4208 mHandler.sendMessage(msg); 4209 } 4210 4211 /** 4212 * Represents a pending input event that is waiting in a queue. 4213 * 4214 * Input events are processed in serial order by the timestamp specified by 4215 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4216 * one input event to the application at a time and waits for the application 4217 * to finish handling it before delivering the next one. 4218 * 4219 * However, because the application or IME can synthesize and inject multiple 4220 * key events at a time without going through the input dispatcher, we end up 4221 * needing a queue on the application's side. 4222 */ 4223 private static final class QueuedInputEvent { 4224 public static final int FLAG_DELIVER_POST_IME = 1; 4225 4226 public QueuedInputEvent mNext; 4227 4228 public InputEvent mEvent; 4229 public InputEventReceiver mReceiver; 4230 public int mFlags; 4231 } 4232 4233 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4234 InputEventReceiver receiver, int flags) { 4235 QueuedInputEvent q = mQueuedInputEventPool; 4236 if (q != null) { 4237 mQueuedInputEventPoolSize -= 1; 4238 mQueuedInputEventPool = q.mNext; 4239 q.mNext = null; 4240 } else { 4241 q = new QueuedInputEvent(); 4242 } 4243 4244 q.mEvent = event; 4245 q.mReceiver = receiver; 4246 q.mFlags = flags; 4247 return q; 4248 } 4249 4250 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4251 q.mEvent = null; 4252 q.mReceiver = null; 4253 4254 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4255 mQueuedInputEventPoolSize += 1; 4256 q.mNext = mQueuedInputEventPool; 4257 mQueuedInputEventPool = q; 4258 } 4259 } 4260 4261 void enqueueInputEvent(InputEvent event) { 4262 enqueueInputEvent(event, null, 0, false); 4263 } 4264 4265 void enqueueInputEvent(InputEvent event, 4266 InputEventReceiver receiver, int flags, boolean processImmediately) { 4267 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4268 4269 // Always enqueue the input event in order, regardless of its time stamp. 4270 // We do this because the application or the IME may inject key events 4271 // in response to touch events and we want to ensure that the injected keys 4272 // are processed in the order they were received and we cannot trust that 4273 // the time stamp of injected events are monotonic. 4274 QueuedInputEvent last = mFirstPendingInputEvent; 4275 if (last == null) { 4276 mFirstPendingInputEvent = q; 4277 } else { 4278 while (last.mNext != null) { 4279 last = last.mNext; 4280 } 4281 last.mNext = q; 4282 } 4283 4284 if (processImmediately) { 4285 doProcessInputEvents(); 4286 } else { 4287 scheduleProcessInputEvents(); 4288 } 4289 } 4290 4291 private void scheduleProcessInputEvents() { 4292 if (!mProcessInputEventsScheduled) { 4293 mProcessInputEventsScheduled = true; 4294 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4295 msg.setAsynchronous(true); 4296 mHandler.sendMessage(msg); 4297 } 4298 } 4299 4300 void doProcessInputEvents() { 4301 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4302 QueuedInputEvent q = mFirstPendingInputEvent; 4303 mFirstPendingInputEvent = q.mNext; 4304 q.mNext = null; 4305 mCurrentInputEvent = q; 4306 deliverInputEvent(q); 4307 } 4308 4309 // We are done processing all input events that we can process right now 4310 // so we can clear the pending flag immediately. 4311 if (mProcessInputEventsScheduled) { 4312 mProcessInputEventsScheduled = false; 4313 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4314 } 4315 } 4316 4317 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4318 if (q != mCurrentInputEvent) { 4319 throw new IllegalStateException("finished input event out of order"); 4320 } 4321 4322 if (q.mReceiver != null) { 4323 q.mReceiver.finishInputEvent(q.mEvent, handled); 4324 } else { 4325 q.mEvent.recycleIfNeededAfterDispatch(); 4326 } 4327 4328 recycleQueuedInputEvent(q); 4329 4330 mCurrentInputEvent = null; 4331 if (mFirstPendingInputEvent != null) { 4332 scheduleProcessInputEvents(); 4333 } 4334 } 4335 4336 void scheduleConsumeBatchedInput() { 4337 if (!mConsumeBatchedInputScheduled) { 4338 mConsumeBatchedInputScheduled = true; 4339 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4340 mConsumedBatchedInputRunnable, null); 4341 } 4342 } 4343 4344 void unscheduleConsumeBatchedInput() { 4345 if (mConsumeBatchedInputScheduled) { 4346 mConsumeBatchedInputScheduled = false; 4347 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4348 mConsumedBatchedInputRunnable, null); 4349 } 4350 } 4351 4352 void doConsumeBatchedInput(long frameTimeNanos) { 4353 if (mConsumeBatchedInputScheduled) { 4354 mConsumeBatchedInputScheduled = false; 4355 if (mInputEventReceiver != null) { 4356 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4357 } 4358 doProcessInputEvents(); 4359 } 4360 } 4361 4362 final class TraversalRunnable implements Runnable { 4363 @Override 4364 public void run() { 4365 doTraversal(); 4366 } 4367 } 4368 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4369 4370 final class WindowInputEventReceiver extends InputEventReceiver { 4371 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4372 super(inputChannel, looper); 4373 } 4374 4375 @Override 4376 public void onInputEvent(InputEvent event) { 4377 enqueueInputEvent(event, this, 0, true); 4378 } 4379 4380 @Override 4381 public void onBatchedInputEventPending() { 4382 scheduleConsumeBatchedInput(); 4383 } 4384 4385 @Override 4386 public void dispose() { 4387 unscheduleConsumeBatchedInput(); 4388 super.dispose(); 4389 } 4390 } 4391 WindowInputEventReceiver mInputEventReceiver; 4392 4393 final class ConsumeBatchedInputRunnable implements Runnable { 4394 @Override 4395 public void run() { 4396 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4397 } 4398 } 4399 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4400 new ConsumeBatchedInputRunnable(); 4401 boolean mConsumeBatchedInputScheduled; 4402 4403 final class InvalidateOnAnimationRunnable implements Runnable { 4404 private boolean mPosted; 4405 private ArrayList<View> mViews = new ArrayList<View>(); 4406 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4407 new ArrayList<AttachInfo.InvalidateInfo>(); 4408 private View[] mTempViews; 4409 private AttachInfo.InvalidateInfo[] mTempViewRects; 4410 4411 public void addView(View view) { 4412 synchronized (this) { 4413 mViews.add(view); 4414 postIfNeededLocked(); 4415 } 4416 } 4417 4418 public void addViewRect(AttachInfo.InvalidateInfo info) { 4419 synchronized (this) { 4420 mViewRects.add(info); 4421 postIfNeededLocked(); 4422 } 4423 } 4424 4425 public void removeView(View view) { 4426 synchronized (this) { 4427 mViews.remove(view); 4428 4429 for (int i = mViewRects.size(); i-- > 0; ) { 4430 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4431 if (info.target == view) { 4432 mViewRects.remove(i); 4433 info.release(); 4434 } 4435 } 4436 4437 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4438 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4439 mPosted = false; 4440 } 4441 } 4442 } 4443 4444 @Override 4445 public void run() { 4446 final int viewCount; 4447 final int viewRectCount; 4448 synchronized (this) { 4449 mPosted = false; 4450 4451 viewCount = mViews.size(); 4452 if (viewCount != 0) { 4453 mTempViews = mViews.toArray(mTempViews != null 4454 ? mTempViews : new View[viewCount]); 4455 mViews.clear(); 4456 } 4457 4458 viewRectCount = mViewRects.size(); 4459 if (viewRectCount != 0) { 4460 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4461 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4462 mViewRects.clear(); 4463 } 4464 } 4465 4466 for (int i = 0; i < viewCount; i++) { 4467 mTempViews[i].invalidate(); 4468 mTempViews[i] = null; 4469 } 4470 4471 for (int i = 0; i < viewRectCount; i++) { 4472 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4473 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4474 info.release(); 4475 } 4476 } 4477 4478 private void postIfNeededLocked() { 4479 if (!mPosted) { 4480 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4481 mPosted = true; 4482 } 4483 } 4484 } 4485 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4486 new InvalidateOnAnimationRunnable(); 4487 4488 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4489 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4490 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4491 } 4492 4493 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4494 long delayMilliseconds) { 4495 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4496 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4497 } 4498 4499 public void dispatchInvalidateOnAnimation(View view) { 4500 mInvalidateOnAnimationRunnable.addView(view); 4501 } 4502 4503 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4504 mInvalidateOnAnimationRunnable.addViewRect(info); 4505 } 4506 4507 public void enqueueDisplayList(DisplayList displayList) { 4508 mDisplayLists.add(displayList); 4509 4510 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4511 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4512 mHandler.sendMessage(msg); 4513 } 4514 4515 public void dequeueDisplayList(DisplayList displayList) { 4516 if (mDisplayLists.remove(displayList)) { 4517 displayList.invalidate(); 4518 if (mDisplayLists.size() == 0) { 4519 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4520 } 4521 } 4522 } 4523 4524 public void cancelInvalidate(View view) { 4525 mHandler.removeMessages(MSG_INVALIDATE, view); 4526 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4527 // them to the pool 4528 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4529 mInvalidateOnAnimationRunnable.removeView(view); 4530 } 4531 4532 public void dispatchKey(KeyEvent event) { 4533 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4534 msg.setAsynchronous(true); 4535 mHandler.sendMessage(msg); 4536 } 4537 4538 public void dispatchKeyFromIme(KeyEvent event) { 4539 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4540 msg.setAsynchronous(true); 4541 mHandler.sendMessage(msg); 4542 } 4543 4544 public void dispatchUnhandledKey(KeyEvent event) { 4545 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4546 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4547 final int keyCode = event.getKeyCode(); 4548 final int metaState = event.getMetaState(); 4549 4550 // Check for fallback actions specified by the key character map. 4551 KeyCharacterMap.FallbackAction fallbackAction = 4552 kcm.getFallbackAction(keyCode, metaState); 4553 if (fallbackAction != null) { 4554 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4555 KeyEvent fallbackEvent = KeyEvent.obtain( 4556 event.getDownTime(), event.getEventTime(), 4557 event.getAction(), fallbackAction.keyCode, 4558 event.getRepeatCount(), fallbackAction.metaState, 4559 event.getDeviceId(), event.getScanCode(), 4560 flags, event.getSource(), null); 4561 fallbackAction.recycle(); 4562 4563 dispatchKey(fallbackEvent); 4564 } 4565 } 4566 } 4567 4568 public void dispatchAppVisibility(boolean visible) { 4569 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4570 msg.arg1 = visible ? 1 : 0; 4571 mHandler.sendMessage(msg); 4572 } 4573 4574 public void dispatchScreenStateChange(boolean on) { 4575 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4576 msg.arg1 = on ? 1 : 0; 4577 mHandler.sendMessage(msg); 4578 } 4579 4580 public void dispatchGetNewSurface() { 4581 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4582 mHandler.sendMessage(msg); 4583 } 4584 4585 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4586 Message msg = Message.obtain(); 4587 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4588 msg.arg1 = hasFocus ? 1 : 0; 4589 msg.arg2 = inTouchMode ? 1 : 0; 4590 mHandler.sendMessage(msg); 4591 } 4592 4593 public void dispatchCloseSystemDialogs(String reason) { 4594 Message msg = Message.obtain(); 4595 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4596 msg.obj = reason; 4597 mHandler.sendMessage(msg); 4598 } 4599 4600 public void dispatchDragEvent(DragEvent event) { 4601 final int what; 4602 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4603 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4604 mHandler.removeMessages(what); 4605 } else { 4606 what = MSG_DISPATCH_DRAG_EVENT; 4607 } 4608 Message msg = mHandler.obtainMessage(what, event); 4609 mHandler.sendMessage(msg); 4610 } 4611 4612 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4613 int localValue, int localChanges) { 4614 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4615 args.seq = seq; 4616 args.globalVisibility = globalVisibility; 4617 args.localValue = localValue; 4618 args.localChanges = localChanges; 4619 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4620 } 4621 4622 public void dispatchDoneAnimating() { 4623 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4624 } 4625 4626 public void dispatchCheckFocus() { 4627 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4628 // This will result in a call to checkFocus() below. 4629 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4630 } 4631 } 4632 4633 /** 4634 * Post a callback to send a 4635 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4636 * This event is send at most once every 4637 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4638 */ 4639 private void postSendWindowContentChangedCallback(View source) { 4640 if (mSendWindowContentChangedAccessibilityEvent == null) { 4641 mSendWindowContentChangedAccessibilityEvent = 4642 new SendWindowContentChangedAccessibilityEvent(); 4643 } 4644 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4645 if (oldSource == null) { 4646 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4647 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4648 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4649 } else { 4650 mSendWindowContentChangedAccessibilityEvent.mSource = 4651 getCommonPredecessor(oldSource, source); 4652 } 4653 } 4654 4655 /** 4656 * Remove a posted callback to send a 4657 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4658 */ 4659 private void removeSendWindowContentChangedCallback() { 4660 if (mSendWindowContentChangedAccessibilityEvent != null) { 4661 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4662 } 4663 } 4664 4665 public boolean showContextMenuForChild(View originalView) { 4666 return false; 4667 } 4668 4669 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4670 return null; 4671 } 4672 4673 public void createContextMenu(ContextMenu menu) { 4674 } 4675 4676 public void childDrawableStateChanged(View child) { 4677 } 4678 4679 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4680 if (mView == null) { 4681 return false; 4682 } 4683 // Intercept accessibility focus events fired by virtual nodes to keep 4684 // track of accessibility focus position in such nodes. 4685 final int eventType = event.getEventType(); 4686 switch (eventType) { 4687 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 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 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4696 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4697 setAccessibilityFocus(source, node); 4698 } 4699 } 4700 } break; 4701 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4702 final long sourceNodeId = event.getSourceNodeId(); 4703 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4704 sourceNodeId); 4705 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4706 if (source != null) { 4707 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4708 if (provider != null) { 4709 setAccessibilityFocus(null, null); 4710 } 4711 } 4712 } break; 4713 } 4714 mAccessibilityManager.sendAccessibilityEvent(event); 4715 return true; 4716 } 4717 4718 @Override 4719 public void childAccessibilityStateChanged(View child) { 4720 postSendWindowContentChangedCallback(child); 4721 } 4722 4723 private View getCommonPredecessor(View first, View second) { 4724 if (mAttachInfo != null) { 4725 if (mTempHashSet == null) { 4726 mTempHashSet = new HashSet<View>(); 4727 } 4728 HashSet<View> seen = mTempHashSet; 4729 seen.clear(); 4730 View firstCurrent = first; 4731 while (firstCurrent != null) { 4732 seen.add(firstCurrent); 4733 ViewParent firstCurrentParent = firstCurrent.mParent; 4734 if (firstCurrentParent instanceof View) { 4735 firstCurrent = (View) firstCurrentParent; 4736 } else { 4737 firstCurrent = null; 4738 } 4739 } 4740 View secondCurrent = second; 4741 while (secondCurrent != null) { 4742 if (seen.contains(secondCurrent)) { 4743 seen.clear(); 4744 return secondCurrent; 4745 } 4746 ViewParent secondCurrentParent = secondCurrent.mParent; 4747 if (secondCurrentParent instanceof View) { 4748 secondCurrent = (View) secondCurrentParent; 4749 } else { 4750 secondCurrent = null; 4751 } 4752 } 4753 seen.clear(); 4754 } 4755 return null; 4756 } 4757 4758 void checkThread() { 4759 if (mThread != Thread.currentThread()) { 4760 throw new CalledFromWrongThreadException( 4761 "Only the original thread that created a view hierarchy can touch its views."); 4762 } 4763 } 4764 4765 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4766 // ViewAncestor never intercepts touch event, so this can be a no-op 4767 } 4768 4769 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4770 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4771 if (rectangle != null) { 4772 mTempRect.set(rectangle); 4773 mTempRect.offset(0, -mCurScrollY); 4774 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4775 try { 4776 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4777 } catch (RemoteException re) { 4778 /* ignore */ 4779 } 4780 } 4781 return scrolled; 4782 } 4783 4784 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4785 // Do nothing. 4786 } 4787 4788 class TakenSurfaceHolder extends BaseSurfaceHolder { 4789 @Override 4790 public boolean onAllowLockCanvas() { 4791 return mDrawingAllowed; 4792 } 4793 4794 @Override 4795 public void onRelayoutContainer() { 4796 // Not currently interesting -- from changing between fixed and layout size. 4797 } 4798 4799 public void setFormat(int format) { 4800 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4801 } 4802 4803 public void setType(int type) { 4804 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4805 } 4806 4807 @Override 4808 public void onUpdateSurface() { 4809 // We take care of format and type changes on our own. 4810 throw new IllegalStateException("Shouldn't be here"); 4811 } 4812 4813 public boolean isCreating() { 4814 return mIsCreating; 4815 } 4816 4817 @Override 4818 public void setFixedSize(int width, int height) { 4819 throw new UnsupportedOperationException( 4820 "Currently only support sizing from layout"); 4821 } 4822 4823 public void setKeepScreenOn(boolean screenOn) { 4824 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4825 } 4826 } 4827 4828 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4829 private WeakReference<ViewRootImpl> mViewAncestor; 4830 4831 public InputMethodCallback(ViewRootImpl viewAncestor) { 4832 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4833 } 4834 4835 @Override 4836 public void finishedEvent(int seq, boolean handled) { 4837 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4838 if (viewAncestor != null) { 4839 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4840 } 4841 } 4842 } 4843 4844 static class W extends IWindow.Stub { 4845 private final WeakReference<ViewRootImpl> mViewAncestor; 4846 private final IWindowSession mWindowSession; 4847 4848 W(ViewRootImpl viewAncestor) { 4849 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4850 mWindowSession = viewAncestor.mWindowSession; 4851 } 4852 4853 public void resized(Rect frame, Rect contentInsets, 4854 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4855 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4856 if (viewAncestor != null) { 4857 viewAncestor.dispatchResized(frame, contentInsets, 4858 visibleInsets, reportDraw, newConfig); 4859 } 4860 } 4861 4862 @Override 4863 public void moved(int newX, int newY) { 4864 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4865 if (viewAncestor != null) { 4866 viewAncestor.dispatchMoved(newX, newY); 4867 } 4868 } 4869 4870 public void dispatchAppVisibility(boolean visible) { 4871 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4872 if (viewAncestor != null) { 4873 viewAncestor.dispatchAppVisibility(visible); 4874 } 4875 } 4876 4877 public void dispatchScreenState(boolean on) { 4878 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4879 if (viewAncestor != null) { 4880 viewAncestor.dispatchScreenStateChange(on); 4881 } 4882 } 4883 4884 public void dispatchGetNewSurface() { 4885 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4886 if (viewAncestor != null) { 4887 viewAncestor.dispatchGetNewSurface(); 4888 } 4889 } 4890 4891 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4892 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4893 if (viewAncestor != null) { 4894 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4895 } 4896 } 4897 4898 private static int checkCallingPermission(String permission) { 4899 try { 4900 return ActivityManagerNative.getDefault().checkPermission( 4901 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4902 } catch (RemoteException e) { 4903 return PackageManager.PERMISSION_DENIED; 4904 } 4905 } 4906 4907 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4908 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4909 if (viewAncestor != null) { 4910 final View view = viewAncestor.mView; 4911 if (view != null) { 4912 if (checkCallingPermission(Manifest.permission.DUMP) != 4913 PackageManager.PERMISSION_GRANTED) { 4914 throw new SecurityException("Insufficient permissions to invoke" 4915 + " executeCommand() from pid=" + Binder.getCallingPid() 4916 + ", uid=" + Binder.getCallingUid()); 4917 } 4918 4919 OutputStream clientStream = null; 4920 try { 4921 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4922 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4923 } catch (IOException e) { 4924 e.printStackTrace(); 4925 } finally { 4926 if (clientStream != null) { 4927 try { 4928 clientStream.close(); 4929 } catch (IOException e) { 4930 e.printStackTrace(); 4931 } 4932 } 4933 } 4934 } 4935 } 4936 } 4937 4938 public void closeSystemDialogs(String reason) { 4939 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4940 if (viewAncestor != null) { 4941 viewAncestor.dispatchCloseSystemDialogs(reason); 4942 } 4943 } 4944 4945 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4946 boolean sync) { 4947 if (sync) { 4948 try { 4949 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4950 } catch (RemoteException e) { 4951 } 4952 } 4953 } 4954 4955 public void dispatchWallpaperCommand(String action, int x, int y, 4956 int z, Bundle extras, boolean sync) { 4957 if (sync) { 4958 try { 4959 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4960 } catch (RemoteException e) { 4961 } 4962 } 4963 } 4964 4965 /* Drag/drop */ 4966 public void dispatchDragEvent(DragEvent event) { 4967 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4968 if (viewAncestor != null) { 4969 viewAncestor.dispatchDragEvent(event); 4970 } 4971 } 4972 4973 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4974 int localValue, int localChanges) { 4975 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4976 if (viewAncestor != null) { 4977 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4978 localValue, localChanges); 4979 } 4980 } 4981 4982 public void doneAnimating() { 4983 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4984 if (viewAncestor != null) { 4985 viewAncestor.dispatchDoneAnimating(); 4986 } 4987 } 4988 } 4989 4990 /** 4991 * Maintains state information for a single trackball axis, generating 4992 * discrete (DPAD) movements based on raw trackball motion. 4993 */ 4994 static final class TrackballAxis { 4995 /** 4996 * The maximum amount of acceleration we will apply. 4997 */ 4998 static final float MAX_ACCELERATION = 20; 4999 5000 /** 5001 * The maximum amount of time (in milliseconds) between events in order 5002 * for us to consider the user to be doing fast trackball movements, 5003 * and thus apply an acceleration. 5004 */ 5005 static final long FAST_MOVE_TIME = 150; 5006 5007 /** 5008 * Scaling factor to the time (in milliseconds) between events to how 5009 * much to multiple/divide the current acceleration. When movement 5010 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5011 * FAST_MOVE_TIME it divides it. 5012 */ 5013 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5014 5015 float position; 5016 float absPosition; 5017 float acceleration = 1; 5018 long lastMoveTime = 0; 5019 int step; 5020 int dir; 5021 int nonAccelMovement; 5022 5023 void reset(int _step) { 5024 position = 0; 5025 acceleration = 1; 5026 lastMoveTime = 0; 5027 step = _step; 5028 dir = 0; 5029 } 5030 5031 /** 5032 * Add trackball movement into the state. If the direction of movement 5033 * has been reversed, the state is reset before adding the 5034 * movement (so that you don't have to compensate for any previously 5035 * collected movement before see the result of the movement in the 5036 * new direction). 5037 * 5038 * @return Returns the absolute value of the amount of movement 5039 * collected so far. 5040 */ 5041 float collect(float off, long time, String axis) { 5042 long normTime; 5043 if (off > 0) { 5044 normTime = (long)(off * FAST_MOVE_TIME); 5045 if (dir < 0) { 5046 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5047 position = 0; 5048 step = 0; 5049 acceleration = 1; 5050 lastMoveTime = 0; 5051 } 5052 dir = 1; 5053 } else if (off < 0) { 5054 normTime = (long)((-off) * FAST_MOVE_TIME); 5055 if (dir > 0) { 5056 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5057 position = 0; 5058 step = 0; 5059 acceleration = 1; 5060 lastMoveTime = 0; 5061 } 5062 dir = -1; 5063 } else { 5064 normTime = 0; 5065 } 5066 5067 // The number of milliseconds between each movement that is 5068 // considered "normal" and will not result in any acceleration 5069 // or deceleration, scaled by the offset we have here. 5070 if (normTime > 0) { 5071 long delta = time - lastMoveTime; 5072 lastMoveTime = time; 5073 float acc = acceleration; 5074 if (delta < normTime) { 5075 // The user is scrolling rapidly, so increase acceleration. 5076 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5077 if (scale > 1) acc *= scale; 5078 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5079 + off + " normTime=" + normTime + " delta=" + delta 5080 + " scale=" + scale + " acc=" + acc); 5081 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5082 } else { 5083 // The user is scrolling slowly, so decrease acceleration. 5084 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5085 if (scale > 1) acc /= scale; 5086 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5087 + off + " normTime=" + normTime + " delta=" + delta 5088 + " scale=" + scale + " acc=" + acc); 5089 acceleration = acc > 1 ? acc : 1; 5090 } 5091 } 5092 position += off; 5093 return (absPosition = Math.abs(position)); 5094 } 5095 5096 /** 5097 * Generate the number of discrete movement events appropriate for 5098 * the currently collected trackball movement. 5099 * 5100 * @param precision The minimum movement required to generate the 5101 * first discrete movement. 5102 * 5103 * @return Returns the number of discrete movements, either positive 5104 * or negative, or 0 if there is not enough trackball movement yet 5105 * for a discrete movement. 5106 */ 5107 int generate(float precision) { 5108 int movement = 0; 5109 nonAccelMovement = 0; 5110 do { 5111 final int dir = position >= 0 ? 1 : -1; 5112 switch (step) { 5113 // If we are going to execute the first step, then we want 5114 // to do this as soon as possible instead of waiting for 5115 // a full movement, in order to make things look responsive. 5116 case 0: 5117 if (absPosition < precision) { 5118 return movement; 5119 } 5120 movement += dir; 5121 nonAccelMovement += dir; 5122 step = 1; 5123 break; 5124 // If we have generated the first movement, then we need 5125 // to wait for the second complete trackball motion before 5126 // generating the second discrete movement. 5127 case 1: 5128 if (absPosition < 2) { 5129 return movement; 5130 } 5131 movement += dir; 5132 nonAccelMovement += dir; 5133 position += dir > 0 ? -2 : 2; 5134 absPosition = Math.abs(position); 5135 step = 2; 5136 break; 5137 // After the first two, we generate discrete movements 5138 // consistently with the trackball, applying an acceleration 5139 // if the trackball is moving quickly. This is a simple 5140 // acceleration on top of what we already compute based 5141 // on how quickly the wheel is being turned, to apply 5142 // a longer increasing acceleration to continuous movement 5143 // in one direction. 5144 default: 5145 if (absPosition < 1) { 5146 return movement; 5147 } 5148 movement += dir; 5149 position += dir >= 0 ? -1 : 1; 5150 absPosition = Math.abs(position); 5151 float acc = acceleration; 5152 acc *= 1.1f; 5153 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5154 break; 5155 } 5156 } while (true); 5157 } 5158 } 5159 5160 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5161 public CalledFromWrongThreadException(String msg) { 5162 super(msg); 5163 } 5164 } 5165 5166 private SurfaceHolder mHolder = new SurfaceHolder() { 5167 // we only need a SurfaceHolder for opengl. it would be nice 5168 // to implement everything else though, especially the callback 5169 // support (opengl doesn't make use of it right now, but eventually 5170 // will). 5171 public Surface getSurface() { 5172 return mSurface; 5173 } 5174 5175 public boolean isCreating() { 5176 return false; 5177 } 5178 5179 public void addCallback(Callback callback) { 5180 } 5181 5182 public void removeCallback(Callback callback) { 5183 } 5184 5185 public void setFixedSize(int width, int height) { 5186 } 5187 5188 public void setSizeFromLayout() { 5189 } 5190 5191 public void setFormat(int format) { 5192 } 5193 5194 public void setType(int type) { 5195 } 5196 5197 public void setKeepScreenOn(boolean screenOn) { 5198 } 5199 5200 public Canvas lockCanvas() { 5201 return null; 5202 } 5203 5204 public Canvas lockCanvas(Rect dirty) { 5205 return null; 5206 } 5207 5208 public void unlockCanvasAndPost(Canvas canvas) { 5209 } 5210 public Rect getSurfaceFrame() { 5211 return null; 5212 } 5213 }; 5214 5215 static RunQueue getRunQueue() { 5216 RunQueue rq = sRunQueues.get(); 5217 if (rq != null) { 5218 return rq; 5219 } 5220 rq = new RunQueue(); 5221 sRunQueues.set(rq); 5222 return rq; 5223 } 5224 5225 /** 5226 * The run queue is used to enqueue pending work from Views when no Handler is 5227 * attached. The work is executed during the next call to performTraversals on 5228 * the thread. 5229 * @hide 5230 */ 5231 static final class RunQueue { 5232 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5233 5234 void post(Runnable action) { 5235 postDelayed(action, 0); 5236 } 5237 5238 void postDelayed(Runnable action, long delayMillis) { 5239 HandlerAction handlerAction = new HandlerAction(); 5240 handlerAction.action = action; 5241 handlerAction.delay = delayMillis; 5242 5243 synchronized (mActions) { 5244 mActions.add(handlerAction); 5245 } 5246 } 5247 5248 void removeCallbacks(Runnable action) { 5249 final HandlerAction handlerAction = new HandlerAction(); 5250 handlerAction.action = action; 5251 5252 synchronized (mActions) { 5253 final ArrayList<HandlerAction> actions = mActions; 5254 5255 while (actions.remove(handlerAction)) { 5256 // Keep going 5257 } 5258 } 5259 } 5260 5261 void executeActions(Handler handler) { 5262 synchronized (mActions) { 5263 final ArrayList<HandlerAction> actions = mActions; 5264 final int count = actions.size(); 5265 5266 for (int i = 0; i < count; i++) { 5267 final HandlerAction handlerAction = actions.get(i); 5268 handler.postDelayed(handlerAction.action, handlerAction.delay); 5269 } 5270 5271 actions.clear(); 5272 } 5273 } 5274 5275 private static class HandlerAction { 5276 Runnable action; 5277 long delay; 5278 5279 @Override 5280 public boolean equals(Object o) { 5281 if (this == o) return true; 5282 if (o == null || getClass() != o.getClass()) return false; 5283 5284 HandlerAction that = (HandlerAction) o; 5285 return !(action != null ? !action.equals(that.action) : that.action != null); 5286 5287 } 5288 5289 @Override 5290 public int hashCode() { 5291 int result = action != null ? action.hashCode() : 0; 5292 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5293 return result; 5294 } 5295 } 5296 } 5297 5298 /** 5299 * Class for managing the accessibility interaction connection 5300 * based on the global accessibility state. 5301 */ 5302 final class AccessibilityInteractionConnectionManager 5303 implements AccessibilityStateChangeListener { 5304 public void onAccessibilityStateChanged(boolean enabled) { 5305 if (enabled) { 5306 ensureConnection(); 5307 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5308 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5309 View focusedView = mView.findFocus(); 5310 if (focusedView != null && focusedView != mView) { 5311 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5312 } 5313 } 5314 } else { 5315 ensureNoConnection(); 5316 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5317 } 5318 } 5319 5320 public void ensureConnection() { 5321 if (mAttachInfo != null) { 5322 final boolean registered = 5323 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5324 if (!registered) { 5325 mAttachInfo.mAccessibilityWindowId = 5326 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5327 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5328 } 5329 } 5330 } 5331 5332 public void ensureNoConnection() { 5333 final boolean registered = 5334 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5335 if (registered) { 5336 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5337 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5338 } 5339 } 5340 } 5341 5342 /** 5343 * This class is an interface this ViewAncestor provides to the 5344 * AccessibilityManagerService to the latter can interact with 5345 * the view hierarchy in this ViewAncestor. 5346 */ 5347 static final class AccessibilityInteractionConnection 5348 extends IAccessibilityInteractionConnection.Stub { 5349 private final WeakReference<ViewRootImpl> mViewRootImpl; 5350 5351 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5352 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5353 } 5354 5355 @Override 5356 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5357 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5358 int interrogatingPid, long interrogatingTid) { 5359 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5360 if (viewRootImpl != null && viewRootImpl.mView != null) { 5361 viewRootImpl.getAccessibilityInteractionController() 5362 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5363 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5364 } else { 5365 // We cannot make the call and notify the caller so it does not wait. 5366 try { 5367 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5368 } catch (RemoteException re) { 5369 /* best effort - ignore */ 5370 } 5371 } 5372 } 5373 5374 @Override 5375 public void performAccessibilityAction(long accessibilityNodeId, int action, 5376 Bundle arguments, int interactionId, 5377 IAccessibilityInteractionConnectionCallback callback, int flags, 5378 int interogatingPid, long interrogatingTid) { 5379 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5380 if (viewRootImpl != null && viewRootImpl.mView != null) { 5381 viewRootImpl.getAccessibilityInteractionController() 5382 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5383 interactionId, callback, flags, interogatingPid, interrogatingTid); 5384 } else { 5385 // We cannot make the call and notify the caller so it does not wait. 5386 try { 5387 callback.setPerformAccessibilityActionResult(false, interactionId); 5388 } catch (RemoteException re) { 5389 /* best effort - ignore */ 5390 } 5391 } 5392 } 5393 5394 @Override 5395 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5396 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5397 int interrogatingPid, long interrogatingTid) { 5398 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5399 if (viewRootImpl != null && viewRootImpl.mView != null) { 5400 viewRootImpl.getAccessibilityInteractionController() 5401 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5402 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5403 } else { 5404 // We cannot make the call and notify the caller so it does not wait. 5405 try { 5406 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5407 } catch (RemoteException re) { 5408 /* best effort - ignore */ 5409 } 5410 } 5411 } 5412 5413 @Override 5414 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5415 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5416 int interrogatingPid, long interrogatingTid) { 5417 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5418 if (viewRootImpl != null && viewRootImpl.mView != null) { 5419 viewRootImpl.getAccessibilityInteractionController() 5420 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5421 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5422 } else { 5423 // We cannot make the call and notify the caller so it does not wait. 5424 try { 5425 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5426 } catch (RemoteException re) { 5427 /* best effort - ignore */ 5428 } 5429 } 5430 } 5431 5432 @Override 5433 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5434 IAccessibilityInteractionConnectionCallback callback, int flags, 5435 int interrogatingPid, long interrogatingTid) { 5436 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5437 if (viewRootImpl != null && viewRootImpl.mView != null) { 5438 viewRootImpl.getAccessibilityInteractionController() 5439 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5440 flags, interrogatingPid, interrogatingTid); 5441 } else { 5442 // We cannot make the call and notify the caller so it does not wait. 5443 try { 5444 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5445 } catch (RemoteException re) { 5446 /* best effort - ignore */ 5447 } 5448 } 5449 } 5450 5451 @Override 5452 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5453 IAccessibilityInteractionConnectionCallback callback, int flags, 5454 int interrogatingPid, long interrogatingTid) { 5455 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5456 if (viewRootImpl != null && viewRootImpl.mView != null) { 5457 viewRootImpl.getAccessibilityInteractionController() 5458 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5459 callback, flags, interrogatingPid, interrogatingTid); 5460 } else { 5461 // We cannot make the call and notify the caller so it does not wait. 5462 try { 5463 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5464 } catch (RemoteException re) { 5465 /* best effort - ignore */ 5466 } 5467 } 5468 } 5469 } 5470 5471 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5472 public View mSource; 5473 5474 public void run() { 5475 if (mSource != null) { 5476 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5477 mSource.resetAccessibilityStateChanged(); 5478 mSource = null; 5479 } 5480 } 5481 } 5482} 5483