ViewRootImpl.java revision d04fe3c1aeaf4ce63f6a6f3def61a8cc5faff705
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.Matrix; 33import android.graphics.Paint; 34import android.graphics.PixelFormat; 35import android.graphics.Point; 36import android.graphics.PointF; 37import android.graphics.PorterDuff; 38import android.graphics.Rect; 39import android.graphics.RectF; 40import android.graphics.Region; 41import android.graphics.drawable.Drawable; 42import android.media.AudioManager; 43import android.os.Binder; 44import android.os.Bundle; 45import android.os.Debug; 46import android.os.Handler; 47import android.os.LatencyTimer; 48import android.os.Looper; 49import android.os.Message; 50import android.os.ParcelFileDescriptor; 51import android.os.PowerManager; 52import android.os.Process; 53import android.os.RemoteException; 54import android.os.SystemClock; 55import android.os.SystemProperties; 56import android.os.Trace; 57import android.util.AndroidRuntimeException; 58import android.util.DisplayMetrics; 59import android.util.Log; 60import android.util.Slog; 61import android.util.TypedValue; 62import android.view.View.AttachInfo; 63import android.view.View.MeasureSpec; 64import android.view.accessibility.AccessibilityEvent; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.R; 78import com.android.internal.os.SomeArgs; 79import com.android.internal.policy.PolicyManager; 80import com.android.internal.view.BaseSurfaceHolder; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.lang.ref.WeakReference; 86import java.util.ArrayList; 87import java.util.HashSet; 88 89/** 90 * The top of a view hierarchy, implementing the needed protocol between View 91 * and the WindowManager. This is for the most part an internal implementation 92 * detail of {@link WindowManagerGlobal}. 93 * 94 * {@hide} 95 */ 96@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 97public final class ViewRootImpl implements ViewParent, 98 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 99 private static final String TAG = "ViewRootImpl"; 100 private static final boolean DBG = false; 101 private static final boolean LOCAL_LOGV = false; 102 /** @noinspection PointlessBooleanExpression*/ 103 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 104 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 105 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 106 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 107 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 108 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 109 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 110 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 111 private static final boolean DEBUG_FPS = false; 112 113 private static final boolean USE_RENDER_THREAD = false; 114 115 /** 116 * Set this system property to true to force the view hierarchy to render 117 * at 60 Hz. This can be used to measure the potential framerate. 118 */ 119 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 120 121 private static final boolean MEASURE_LATENCY = false; 122 private static LatencyTimer lt; 123 124 /** 125 * Maximum time we allow the user to roll the trackball enough to generate 126 * a key event, before resetting the counters. 127 */ 128 static final int MAX_TRACKBALL_DELAY = 250; 129 130 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 131 132 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 133 static boolean sFirstDrawComplete = false; 134 135 static final ArrayList<ComponentCallbacks> sConfigCallbacks 136 = new ArrayList<ComponentCallbacks>(); 137 138 private static boolean sUseRenderThread = false; 139 private static boolean sRenderThreadQueried = false; 140 private static final Object[] sRenderThreadQueryLock = new Object[0]; 141 142 final IWindowSession mWindowSession; 143 final Display mDisplay; 144 145 long mLastTrackballTime = 0; 146 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 147 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 148 149 final SimulatedTrackball mSimulatedTrackball = new SimulatedTrackball(); 150 151 int mLastJoystickXDirection; 152 int mLastJoystickYDirection; 153 int mLastJoystickXKeyCode; 154 int mLastJoystickYKeyCode; 155 156 final int[] mTmpLocation = new int[2]; 157 158 final TypedValue mTmpValue = new TypedValue(); 159 160 final InputMethodCallback mInputMethodCallback; 161 final Thread mThread; 162 163 final WindowLeaked mLocation; 164 165 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 166 167 final W mWindow; 168 169 final int mTargetSdkVersion; 170 171 int mSeq; 172 173 View mView; 174 View mFocusedView; 175 View mRealFocusedView; // this is not set to null in touch mode 176 View mOldFocusedView; 177 178 View mAccessibilityFocusedHost; 179 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 180 181 int mViewVisibility; 182 boolean mAppVisible = true; 183 int mOrigWindowType = -1; 184 185 // Set to true if the owner of this window is in the stopped state, 186 // so the window should no longer be active. 187 boolean mStopped = false; 188 189 boolean mLastInCompatMode = false; 190 191 SurfaceHolder.Callback2 mSurfaceHolderCallback; 192 BaseSurfaceHolder mSurfaceHolder; 193 boolean mIsCreating; 194 boolean mDrawingAllowed; 195 196 final Region mTransparentRegion; 197 final Region mPreviousTransparentRegion; 198 199 int mWidth; 200 int mHeight; 201 Rect mDirty; 202 final Rect mCurrentDirty = new Rect(); 203 final Rect mPreviousDirty = new Rect(); 204 boolean mIsAnimating; 205 206 CompatibilityInfo.Translator mTranslator; 207 208 final View.AttachInfo mAttachInfo; 209 InputChannel mInputChannel; 210 InputQueue.Callback mInputQueueCallback; 211 InputQueue mInputQueue; 212 FallbackEventHandler mFallbackEventHandler; 213 Choreographer mChoreographer; 214 215 final Rect mTempRect; // used in the transaction to not thrash the heap. 216 final Rect mVisRect; // used to retrieve visible rect of focused view. 217 218 boolean mTraversalScheduled; 219 int mTraversalBarrier; 220 boolean mWillDrawSoon; 221 /** Set to true while in performTraversals for detecting when die(true) is called from internal 222 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 223 boolean mIsInTraversal; 224 boolean mFitSystemWindowsRequested; 225 boolean mLayoutRequested; 226 boolean mFirst; 227 boolean mReportNextDraw; 228 boolean mFullRedrawNeeded; 229 boolean mNewSurfaceNeeded; 230 boolean mHasHadWindowFocus; 231 boolean mLastWasImTarget; 232 boolean mWindowsAnimating; 233 boolean mIsDrawing; 234 int mLastSystemUiVisibility; 235 int mClientWindowLayoutFlags; 236 237 // Pool of queued input events. 238 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 239 private QueuedInputEvent mQueuedInputEventPool; 240 private int mQueuedInputEventPoolSize; 241 242 // Input event queue. 243 QueuedInputEvent mFirstPendingInputEvent; 244 QueuedInputEvent mCurrentInputEvent; 245 boolean mProcessInputEventsScheduled; 246 247 boolean mWindowAttributesChanged = false; 248 int mWindowAttributesChangesFlag = 0; 249 250 // These can be accessed by any thread, must be protected with a lock. 251 // Surface can never be reassigned or cleared (use Surface.clear()). 252 private final Surface mSurface = new Surface(); 253 254 boolean mAdded; 255 boolean mAddedTouchMode; 256 257 final CompatibilityInfoHolder mCompatibilityInfo; 258 259 // These are accessed by multiple threads. 260 final Rect mWinFrame; // frame given by window manager. 261 262 final Rect mPendingVisibleInsets = new Rect(); 263 final Rect mPendingContentInsets = new Rect(); 264 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 265 = new ViewTreeObserver.InternalInsetsInfo(); 266 267 final Rect mFitSystemWindowsInsets = new Rect(); 268 269 final Configuration mLastConfiguration = new Configuration(); 270 final Configuration mPendingConfiguration = new Configuration(); 271 272 boolean mScrollMayChange; 273 int mSoftInputMode; 274 View mLastScrolledFocus; 275 int mScrollY; 276 int mCurScrollY; 277 Scroller mScroller; 278 HardwareLayer mResizeBuffer; 279 long mResizeBufferStartTime; 280 int mResizeBufferDuration; 281 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 282 private ArrayList<LayoutTransition> mPendingTransitions; 283 284 final ViewConfiguration mViewConfiguration; 285 286 /* Drag/drop */ 287 ClipDescription mDragDescription; 288 View mCurrentDragView; 289 volatile Object mLocalDragState; 290 final PointF mDragPoint = new PointF(); 291 final PointF mLastTouchPoint = new PointF(); 292 293 private boolean mProfileRendering; 294 private Thread mRenderProfiler; 295 private volatile boolean mRenderProfilingEnabled; 296 297 // Variables to track frames per second, enabled via DEBUG_FPS flag 298 private long mFpsStartTime = -1; 299 private long mFpsPrevTime = -1; 300 private int mFpsNumFrames; 301 302 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 303 304 /** 305 * see {@link #playSoundEffect(int)} 306 */ 307 AudioManager mAudioManager; 308 309 final AccessibilityManager mAccessibilityManager; 310 311 AccessibilityInteractionController mAccessibilityInteractionController; 312 313 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 314 315 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 316 317 HashSet<View> mTempHashSet; 318 319 private final int mDensity; 320 private final int mNoncompatDensity; 321 322 private int mViewLayoutDirectionInitial; 323 324 /** 325 * Consistency verifier for debugging purposes. 326 */ 327 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 328 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 329 new InputEventConsistencyVerifier(this, 0) : null; 330 331 static final class SystemUiVisibilityInfo { 332 int seq; 333 int globalVisibility; 334 int localValue; 335 int localChanges; 336 } 337 338 public ViewRootImpl(Context context, Display display) { 339 super(); 340 341 if (MEASURE_LATENCY) { 342 if (lt == null) { 343 lt = new LatencyTimer(100, 1000); 344 } 345 } 346 347 // Initialize the statics when this class is first instantiated. This is 348 // done here instead of in the static block because Zygote does not 349 // allow the spawning of threads. 350 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 351 mDisplay = display; 352 353 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 354 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 355 356 mThread = Thread.currentThread(); 357 mLocation = new WindowLeaked(null); 358 mLocation.fillInStackTrace(); 359 mWidth = -1; 360 mHeight = -1; 361 mDirty = new Rect(); 362 mTempRect = new Rect(); 363 mVisRect = new Rect(); 364 mWinFrame = new Rect(); 365 mWindow = new W(this); 366 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 367 mInputMethodCallback = new InputMethodCallback(this); 368 mViewVisibility = View.GONE; 369 mTransparentRegion = new Region(); 370 mPreviousTransparentRegion = new Region(); 371 mFirst = true; // true for the first time the view is added 372 mAdded = false; 373 mAccessibilityManager = AccessibilityManager.getInstance(context); 374 mAccessibilityInteractionConnectionManager = 375 new AccessibilityInteractionConnectionManager(); 376 mAccessibilityManager.addAccessibilityStateChangeListener( 377 mAccessibilityInteractionConnectionManager); 378 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 379 mViewConfiguration = ViewConfiguration.get(context); 380 mDensity = context.getResources().getDisplayMetrics().densityDpi; 381 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 382 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 383 mProfileRendering = Boolean.parseBoolean( 384 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 385 mChoreographer = Choreographer.getInstance(); 386 387 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 388 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 389 loadSystemProperties(); 390 } 391 392 /** 393 * @return True if the application requests the use of a separate render thread, 394 * false otherwise 395 */ 396 private static boolean isRenderThreadRequested(Context context) { 397 if (USE_RENDER_THREAD) { 398 synchronized (sRenderThreadQueryLock) { 399 if (!sRenderThreadQueried) { 400 final PackageManager packageManager = context.getPackageManager(); 401 final String packageName = context.getApplicationInfo().packageName; 402 try { 403 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 404 PackageManager.GET_META_DATA); 405 if (applicationInfo.metaData != null) { 406 sUseRenderThread = applicationInfo.metaData.getBoolean( 407 "android.graphics.renderThread", false); 408 } 409 } catch (PackageManager.NameNotFoundException e) { 410 } finally { 411 sRenderThreadQueried = true; 412 } 413 } 414 return sUseRenderThread; 415 } 416 } else { 417 return false; 418 } 419 } 420 421 public static void addFirstDrawHandler(Runnable callback) { 422 synchronized (sFirstDrawHandlers) { 423 if (!sFirstDrawComplete) { 424 sFirstDrawHandlers.add(callback); 425 } 426 } 427 } 428 429 public static void addConfigCallback(ComponentCallbacks callback) { 430 synchronized (sConfigCallbacks) { 431 sConfigCallbacks.add(callback); 432 } 433 } 434 435 // FIXME for perf testing only 436 private boolean mProfile = false; 437 438 /** 439 * Call this to profile the next traversal call. 440 * FIXME for perf testing only. Remove eventually 441 */ 442 public void profile() { 443 mProfile = true; 444 } 445 446 /** 447 * Indicates whether we are in touch mode. Calling this method triggers an IPC 448 * call and should be avoided whenever possible. 449 * 450 * @return True, if the device is in touch mode, false otherwise. 451 * 452 * @hide 453 */ 454 static boolean isInTouchMode() { 455 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 456 if (windowSession != null) { 457 try { 458 return windowSession.getInTouchMode(); 459 } catch (RemoteException e) { 460 } 461 } 462 return false; 463 } 464 465 /** 466 * We have one child 467 */ 468 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 469 synchronized (this) { 470 if (mView == null) { 471 mView = view; 472 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 473 mFallbackEventHandler.setView(view); 474 mWindowAttributes.copyFrom(attrs); 475 attrs = mWindowAttributes; 476 // Keep track of the actual window flags supplied by the client. 477 mClientWindowLayoutFlags = attrs.flags; 478 479 setAccessibilityFocus(null, null); 480 481 if (view instanceof RootViewSurfaceTaker) { 482 mSurfaceHolderCallback = 483 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 484 if (mSurfaceHolderCallback != null) { 485 mSurfaceHolder = new TakenSurfaceHolder(); 486 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 487 } 488 } 489 490 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 491 mTranslator = compatibilityInfo.getTranslator(); 492 493 // If the application owns the surface, don't enable hardware acceleration 494 if (mSurfaceHolder == null) { 495 enableHardwareAcceleration(mView.getContext(), attrs); 496 } 497 498 boolean restore = false; 499 if (mTranslator != null) { 500 mSurface.setCompatibilityTranslator(mTranslator); 501 restore = true; 502 attrs.backup(); 503 mTranslator.translateWindowLayout(attrs); 504 } 505 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 506 507 if (!compatibilityInfo.supportsScreen()) { 508 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 509 mLastInCompatMode = true; 510 } 511 512 mSoftInputMode = attrs.softInputMode; 513 mWindowAttributesChanged = true; 514 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 515 mAttachInfo.mRootView = view; 516 mAttachInfo.mScalingRequired = mTranslator != null; 517 mAttachInfo.mApplicationScale = 518 mTranslator == null ? 1.0f : mTranslator.applicationScale; 519 if (panelParentView != null) { 520 mAttachInfo.mPanelParentWindowToken 521 = panelParentView.getApplicationWindowToken(); 522 } 523 mAdded = true; 524 int res; /* = WindowManagerImpl.ADD_OKAY; */ 525 526 // Schedule the first layout -before- adding to the window 527 // manager, to make sure we do the relayout before receiving 528 // any other events from the system. 529 requestLayout(); 530 if ((mWindowAttributes.inputFeatures 531 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 532 mInputChannel = new InputChannel(); 533 } 534 try { 535 mOrigWindowType = mWindowAttributes.type; 536 mAttachInfo.mRecomputeGlobalAttributes = true; 537 collectViewAttributes(); 538 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 539 getHostVisibility(), mDisplay.getDisplayId(), 540 mAttachInfo.mContentInsets, mInputChannel); 541 } catch (RemoteException e) { 542 mAdded = false; 543 mView = null; 544 mAttachInfo.mRootView = null; 545 mInputChannel = null; 546 mFallbackEventHandler.setView(null); 547 unscheduleTraversals(); 548 setAccessibilityFocus(null, null); 549 throw new RuntimeException("Adding window failed", e); 550 } finally { 551 if (restore) { 552 attrs.restore(); 553 } 554 } 555 556 if (mTranslator != null) { 557 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 558 } 559 mPendingContentInsets.set(mAttachInfo.mContentInsets); 560 mPendingVisibleInsets.set(0, 0, 0, 0); 561 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 562 if (res < WindowManagerGlobal.ADD_OKAY) { 563 mView = null; 564 mAttachInfo.mRootView = null; 565 mAdded = false; 566 mFallbackEventHandler.setView(null); 567 unscheduleTraversals(); 568 setAccessibilityFocus(null, null); 569 switch (res) { 570 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 571 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 572 throw new WindowManager.BadTokenException( 573 "Unable to add window -- token " + attrs.token 574 + " is not valid; is your activity running?"); 575 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 576 throw new WindowManager.BadTokenException( 577 "Unable to add window -- token " + attrs.token 578 + " is not for an application"); 579 case WindowManagerGlobal.ADD_APP_EXITING: 580 throw new WindowManager.BadTokenException( 581 "Unable to add window -- app for token " + attrs.token 582 + " is exiting"); 583 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 584 throw new WindowManager.BadTokenException( 585 "Unable to add window -- window " + mWindow 586 + " has already been added"); 587 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 588 // Silently ignore -- we would have just removed it 589 // right away, anyway. 590 return; 591 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 592 throw new WindowManager.BadTokenException( 593 "Unable to add window " + mWindow + 594 " -- another window of this type already exists"); 595 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 596 throw new WindowManager.BadTokenException( 597 "Unable to add window " + mWindow + 598 " -- permission denied for this window type"); 599 } 600 throw new RuntimeException( 601 "Unable to add window -- unknown error code " + res); 602 } 603 604 if (view instanceof RootViewSurfaceTaker) { 605 mInputQueueCallback = 606 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 607 } 608 if (mInputChannel != null) { 609 if (mInputQueueCallback != null) { 610 mInputQueue = new InputQueue(mInputChannel); 611 mInputQueueCallback.onInputQueueCreated(mInputQueue); 612 } else { 613 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 614 Looper.myLooper()); 615 } 616 } 617 618 view.assignParent(this); 619 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 620 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 621 622 if (mAccessibilityManager.isEnabled()) { 623 mAccessibilityInteractionConnectionManager.ensureConnection(); 624 } 625 626 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 627 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 628 } 629 } 630 } 631 } 632 633 void destroyHardwareResources() { 634 if (mAttachInfo.mHardwareRenderer != null) { 635 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 636 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 637 } 638 mAttachInfo.mHardwareRenderer.destroy(false); 639 } 640 } 641 642 void terminateHardwareResources() { 643 if (mAttachInfo.mHardwareRenderer != null) { 644 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 645 mAttachInfo.mHardwareRenderer.destroy(false); 646 } 647 } 648 649 void destroyHardwareLayers() { 650 if (mThread != Thread.currentThread()) { 651 if (mAttachInfo.mHardwareRenderer != null && 652 mAttachInfo.mHardwareRenderer.isEnabled()) { 653 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 654 } 655 } else { 656 if (mAttachInfo.mHardwareRenderer != null && 657 mAttachInfo.mHardwareRenderer.isEnabled()) { 658 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 659 } 660 } 661 } 662 663 void pushHardwareLayerUpdate(HardwareLayer layer) { 664 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 665 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 666 } 667 } 668 669 public boolean attachFunctor(int functor) { 670 //noinspection SimplifiableIfStatement 671 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 672 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 673 } 674 return false; 675 } 676 677 public void detachFunctor(int functor) { 678 if (mAttachInfo.mHardwareRenderer != null) { 679 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 680 } 681 } 682 683 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 684 mAttachInfo.mHardwareAccelerated = false; 685 mAttachInfo.mHardwareAccelerationRequested = false; 686 687 // Don't enable hardware acceleration when the application is in compatibility mode 688 if (mTranslator != null) return; 689 690 // Try to enable hardware acceleration if requested 691 final boolean hardwareAccelerated = 692 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 693 694 if (hardwareAccelerated) { 695 if (!HardwareRenderer.isAvailable()) { 696 return; 697 } 698 699 // Persistent processes (including the system) should not do 700 // accelerated rendering on low-end devices. In that case, 701 // sRendererDisabled will be set. In addition, the system process 702 // itself should never do accelerated rendering. In that case, both 703 // sRendererDisabled and sSystemRendererDisabled are set. When 704 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 705 // can be used by code on the system process to escape that and enable 706 // HW accelerated drawing. (This is basically for the lock screen.) 707 708 final boolean fakeHwAccelerated = (attrs.privateFlags & 709 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 710 final boolean forceHwAccelerated = (attrs.privateFlags & 711 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 712 713 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 714 && forceHwAccelerated)) { 715 // Don't enable hardware acceleration when we're not on the main thread 716 if (!HardwareRenderer.sSystemRendererDisabled && 717 Looper.getMainLooper() != Looper.myLooper()) { 718 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 719 + "acceleration outside of the main thread, aborting"); 720 return; 721 } 722 723 final boolean renderThread = isRenderThreadRequested(context); 724 if (renderThread) { 725 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 726 } 727 728 if (mAttachInfo.mHardwareRenderer != null) { 729 mAttachInfo.mHardwareRenderer.destroy(true); 730 } 731 732 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 733 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 734 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 735 = mAttachInfo.mHardwareRenderer != null; 736 737 } else if (fakeHwAccelerated) { 738 // The window had wanted to use hardware acceleration, but this 739 // is not allowed in its process. By setting this flag, it can 740 // still render as if it was accelerated. This is basically for 741 // the preview windows the window manager shows for launching 742 // applications, so they will look more like the app being launched. 743 mAttachInfo.mHardwareAccelerationRequested = true; 744 } 745 } 746 } 747 748 public View getView() { 749 return mView; 750 } 751 752 final WindowLeaked getLocation() { 753 return mLocation; 754 } 755 756 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 757 synchronized (this) { 758 int oldSoftInputMode = mWindowAttributes.softInputMode; 759 // Keep track of the actual window flags supplied by the client. 760 mClientWindowLayoutFlags = attrs.flags; 761 // preserve compatible window flag if exists. 762 int compatibleWindowFlag = 763 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 764 // transfer over system UI visibility values as they carry current state. 765 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 766 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 767 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 768 mWindowAttributes.flags |= compatibleWindowFlag; 769 770 applyKeepScreenOnFlag(mWindowAttributes); 771 772 if (newView) { 773 mSoftInputMode = attrs.softInputMode; 774 requestLayout(); 775 } 776 // Don't lose the mode we last auto-computed. 777 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 778 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 779 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 780 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 781 | (oldSoftInputMode 782 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 783 } 784 mWindowAttributesChanged = true; 785 scheduleTraversals(); 786 } 787 } 788 789 void handleAppVisibility(boolean visible) { 790 if (mAppVisible != visible) { 791 mAppVisible = visible; 792 scheduleTraversals(); 793 } 794 } 795 796 void handleGetNewSurface() { 797 mNewSurfaceNeeded = true; 798 mFullRedrawNeeded = true; 799 scheduleTraversals(); 800 } 801 802 void handleScreenStateChange(boolean on) { 803 if (on != mAttachInfo.mScreenOn) { 804 mAttachInfo.mScreenOn = on; 805 if (mView != null) { 806 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 807 } 808 if (on) { 809 mFullRedrawNeeded = true; 810 scheduleTraversals(); 811 } 812 } 813 } 814 815 /** 816 * {@inheritDoc} 817 */ 818 public void requestFitSystemWindows() { 819 checkThread(); 820 mFitSystemWindowsRequested = true; 821 scheduleTraversals(); 822 } 823 824 /** 825 * {@inheritDoc} 826 */ 827 public void requestLayout() { 828 checkThread(); 829 mLayoutRequested = true; 830 scheduleTraversals(); 831 } 832 833 /** 834 * {@inheritDoc} 835 */ 836 public boolean isLayoutRequested() { 837 return mLayoutRequested; 838 } 839 840 void invalidate() { 841 mDirty.set(0, 0, mWidth, mHeight); 842 scheduleTraversals(); 843 } 844 845 void invalidateWorld(View view) { 846 view.invalidate(); 847 if (view instanceof ViewGroup) { 848 ViewGroup parent = (ViewGroup) view; 849 for (int i = 0; i < parent.getChildCount(); i++) { 850 invalidateWorld(parent.getChildAt(i)); 851 } 852 } 853 } 854 855 public void invalidateChild(View child, Rect dirty) { 856 invalidateChildInParent(null, dirty); 857 } 858 859 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 860 checkThread(); 861 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 862 863 if (dirty == null) { 864 invalidate(); 865 return null; 866 } else if (dirty.isEmpty()) { 867 return null; 868 } 869 870 if (mCurScrollY != 0 || mTranslator != null) { 871 mTempRect.set(dirty); 872 dirty = mTempRect; 873 if (mCurScrollY != 0) { 874 dirty.offset(0, -mCurScrollY); 875 } 876 if (mTranslator != null) { 877 mTranslator.translateRectInAppWindowToScreen(dirty); 878 } 879 if (mAttachInfo.mScalingRequired) { 880 dirty.inset(-1, -1); 881 } 882 } 883 884 final Rect localDirty = mDirty; 885 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 886 mAttachInfo.mSetIgnoreDirtyState = true; 887 mAttachInfo.mIgnoreDirtyState = true; 888 } 889 890 // Add the new dirty rect to the current one 891 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 892 // Intersect with the bounds of the window to skip 893 // updates that lie outside of the visible region 894 final float appScale = mAttachInfo.mApplicationScale; 895 if (localDirty.intersect(0, 0, 896 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f))) { 897 if (!mWillDrawSoon) { 898 scheduleTraversals(); 899 } 900 } else { 901 localDirty.setEmpty(); 902 } 903 904 return null; 905 } 906 907 void setStopped(boolean stopped) { 908 if (mStopped != stopped) { 909 mStopped = stopped; 910 if (!stopped) { 911 scheduleTraversals(); 912 } 913 } 914 } 915 916 public ViewParent getParent() { 917 return null; 918 } 919 920 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 921 if (child != mView) { 922 throw new RuntimeException("child is not mine, honest!"); 923 } 924 // Note: don't apply scroll offset, because we want to know its 925 // visibility in the virtual canvas being given to the view hierarchy. 926 return r.intersect(0, 0, mWidth, mHeight); 927 } 928 929 public void bringChildToFront(View child) { 930 } 931 932 int getHostVisibility() { 933 return mAppVisible ? mView.getVisibility() : View.GONE; 934 } 935 936 void disposeResizeBuffer() { 937 if (mResizeBuffer != null) { 938 mResizeBuffer.destroy(); 939 mResizeBuffer = null; 940 } 941 } 942 943 /** 944 * Add LayoutTransition to the list of transitions to be started in the next traversal. 945 * This list will be cleared after the transitions on the list are start()'ed. These 946 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 947 * happens during the layout phase of traversal, which we want to complete before any of the 948 * animations are started (because those animations may side-effect properties that layout 949 * depends upon, like the bounding rectangles of the affected views). So we add the transition 950 * to the list and it is started just prior to starting the drawing phase of traversal. 951 * 952 * @param transition The LayoutTransition to be started on the next traversal. 953 * 954 * @hide 955 */ 956 public void requestTransitionStart(LayoutTransition transition) { 957 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 958 if (mPendingTransitions == null) { 959 mPendingTransitions = new ArrayList<LayoutTransition>(); 960 } 961 mPendingTransitions.add(transition); 962 } 963 } 964 965 void scheduleTraversals() { 966 if (!mTraversalScheduled) { 967 mTraversalScheduled = true; 968 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 969 mChoreographer.postCallback( 970 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 971 scheduleConsumeBatchedInput(); 972 } 973 } 974 975 void unscheduleTraversals() { 976 if (mTraversalScheduled) { 977 mTraversalScheduled = false; 978 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 979 mChoreographer.removeCallbacks( 980 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 981 } 982 } 983 984 void doTraversal() { 985 if (mTraversalScheduled) { 986 mTraversalScheduled = false; 987 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 988 989 if (mProfile) { 990 Debug.startMethodTracing("ViewAncestor"); 991 } 992 993 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 994 try { 995 performTraversals(); 996 } finally { 997 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 998 } 999 1000 if (mProfile) { 1001 Debug.stopMethodTracing(); 1002 mProfile = false; 1003 } 1004 } 1005 } 1006 1007 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1008 // Update window's global keep screen on flag: if a view has requested 1009 // that the screen be kept on, then it is always set; otherwise, it is 1010 // set to whatever the client last requested for the global state. 1011 if (mAttachInfo.mKeepScreenOn) { 1012 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1013 } else { 1014 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1015 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1016 } 1017 } 1018 1019 private boolean collectViewAttributes() { 1020 final View.AttachInfo attachInfo = mAttachInfo; 1021 if (attachInfo.mRecomputeGlobalAttributes) { 1022 //Log.i(TAG, "Computing view hierarchy attributes!"); 1023 attachInfo.mRecomputeGlobalAttributes = false; 1024 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1025 attachInfo.mKeepScreenOn = false; 1026 attachInfo.mSystemUiVisibility = 0; 1027 attachInfo.mHasSystemUiListeners = false; 1028 mView.dispatchCollectViewAttributes(attachInfo, 0); 1029 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1030 WindowManager.LayoutParams params = mWindowAttributes; 1031 if (attachInfo.mKeepScreenOn != oldScreenOn 1032 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1033 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1034 applyKeepScreenOnFlag(params); 1035 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1036 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1037 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1038 return true; 1039 } 1040 } 1041 return false; 1042 } 1043 1044 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1045 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1046 int childWidthMeasureSpec; 1047 int childHeightMeasureSpec; 1048 boolean windowSizeMayChange = false; 1049 1050 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1051 "Measuring " + host + " in display " + desiredWindowWidth 1052 + "x" + desiredWindowHeight + "..."); 1053 1054 boolean goodMeasure = false; 1055 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1056 // On large screens, we don't want to allow dialogs to just 1057 // stretch to fill the entire width of the screen to display 1058 // one line of text. First try doing the layout at a smaller 1059 // size to see if it will fit. 1060 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1061 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1062 int baseSize = 0; 1063 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1064 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1065 } 1066 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1067 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1068 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1069 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1070 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1071 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1072 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1073 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1074 goodMeasure = true; 1075 } else { 1076 // Didn't fit in that size... try expanding a bit. 1077 baseSize = (baseSize+desiredWindowWidth)/2; 1078 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1079 + baseSize); 1080 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1081 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1082 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1083 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1084 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1085 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1086 goodMeasure = true; 1087 } 1088 } 1089 } 1090 } 1091 1092 if (!goodMeasure) { 1093 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1094 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1095 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1096 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1097 windowSizeMayChange = true; 1098 } 1099 } 1100 1101 if (DBG) { 1102 System.out.println("======================================"); 1103 System.out.println("performTraversals -- after measure"); 1104 host.debug(); 1105 } 1106 1107 return windowSizeMayChange; 1108 } 1109 1110 private void performTraversals() { 1111 // cache mView since it is used so much below... 1112 final View host = mView; 1113 1114 if (DBG) { 1115 System.out.println("======================================"); 1116 System.out.println("performTraversals"); 1117 host.debug(); 1118 } 1119 1120 if (host == null || !mAdded) 1121 return; 1122 1123 mIsInTraversal = true; 1124 mWillDrawSoon = true; 1125 boolean windowSizeMayChange = false; 1126 boolean newSurface = false; 1127 boolean surfaceChanged = false; 1128 WindowManager.LayoutParams lp = mWindowAttributes; 1129 1130 int desiredWindowWidth; 1131 int desiredWindowHeight; 1132 1133 final View.AttachInfo attachInfo = mAttachInfo; 1134 1135 final int viewVisibility = getHostVisibility(); 1136 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1137 || mNewSurfaceNeeded; 1138 1139 WindowManager.LayoutParams params = null; 1140 if (mWindowAttributesChanged) { 1141 mWindowAttributesChanged = false; 1142 surfaceChanged = true; 1143 params = lp; 1144 } 1145 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1146 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1147 params = lp; 1148 mFullRedrawNeeded = true; 1149 mLayoutRequested = true; 1150 if (mLastInCompatMode) { 1151 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1152 mLastInCompatMode = false; 1153 } else { 1154 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1155 mLastInCompatMode = true; 1156 } 1157 } 1158 1159 mWindowAttributesChangesFlag = 0; 1160 1161 Rect frame = mWinFrame; 1162 if (mFirst) { 1163 mFullRedrawNeeded = true; 1164 mLayoutRequested = true; 1165 1166 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1167 // NOTE -- system code, won't try to do compat mode. 1168 Point size = new Point(); 1169 mDisplay.getRealSize(size); 1170 desiredWindowWidth = size.x; 1171 desiredWindowHeight = size.y; 1172 } else { 1173 DisplayMetrics packageMetrics = 1174 mView.getContext().getResources().getDisplayMetrics(); 1175 desiredWindowWidth = packageMetrics.widthPixels; 1176 desiredWindowHeight = packageMetrics.heightPixels; 1177 } 1178 1179 // For the very first time, tell the view hierarchy that it 1180 // is attached to the window. Note that at this point the surface 1181 // object is not initialized to its backing store, but soon it 1182 // will be (assuming the window is visible). 1183 attachInfo.mSurface = mSurface; 1184 // We used to use the following condition to choose 32 bits drawing caches: 1185 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1186 // However, windows are now always 32 bits by default, so choose 32 bits 1187 attachInfo.mUse32BitDrawingCache = true; 1188 attachInfo.mHasWindowFocus = false; 1189 attachInfo.mWindowVisibility = viewVisibility; 1190 attachInfo.mRecomputeGlobalAttributes = false; 1191 viewVisibilityChanged = false; 1192 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1193 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1194 // Set the layout direction if it has not been set before (inherit is the default) 1195 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1196 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1197 } 1198 host.dispatchAttachedToWindow(attachInfo, 0); 1199 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1200 host.fitSystemWindows(mFitSystemWindowsInsets); 1201 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1202 1203 } else { 1204 desiredWindowWidth = frame.width(); 1205 desiredWindowHeight = frame.height(); 1206 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1207 if (DEBUG_ORIENTATION) Log.v(TAG, 1208 "View " + host + " resized to: " + frame); 1209 mFullRedrawNeeded = true; 1210 mLayoutRequested = true; 1211 windowSizeMayChange = true; 1212 } 1213 } 1214 1215 if (viewVisibilityChanged) { 1216 attachInfo.mWindowVisibility = viewVisibility; 1217 host.dispatchWindowVisibilityChanged(viewVisibility); 1218 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1219 destroyHardwareResources(); 1220 } 1221 if (viewVisibility == View.GONE) { 1222 // After making a window gone, we will count it as being 1223 // shown for the first time the next time it gets focus. 1224 mHasHadWindowFocus = false; 1225 } 1226 } 1227 1228 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1229 getRunQueue().executeActions(attachInfo.mHandler); 1230 1231 boolean insetsChanged = false; 1232 1233 boolean layoutRequested = mLayoutRequested && !mStopped; 1234 if (layoutRequested) { 1235 1236 final Resources res = mView.getContext().getResources(); 1237 1238 if (mFirst) { 1239 // make sure touch mode code executes by setting cached value 1240 // to opposite of the added touch mode. 1241 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1242 ensureTouchModeLocally(mAddedTouchMode); 1243 } else { 1244 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1245 insetsChanged = true; 1246 } 1247 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1248 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1249 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1250 + mAttachInfo.mVisibleInsets); 1251 } 1252 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1253 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1254 windowSizeMayChange = true; 1255 1256 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1257 // NOTE -- system code, won't try to do compat mode. 1258 Point size = new Point(); 1259 mDisplay.getRealSize(size); 1260 desiredWindowWidth = size.x; 1261 desiredWindowHeight = size.y; 1262 } else { 1263 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1264 desiredWindowWidth = packageMetrics.widthPixels; 1265 desiredWindowHeight = packageMetrics.heightPixels; 1266 } 1267 } 1268 } 1269 1270 // Ask host how big it wants to be 1271 windowSizeMayChange |= measureHierarchy(host, lp, res, 1272 desiredWindowWidth, desiredWindowHeight); 1273 } 1274 1275 if (collectViewAttributes()) { 1276 params = lp; 1277 } 1278 if (attachInfo.mForceReportNewAttributes) { 1279 attachInfo.mForceReportNewAttributes = false; 1280 params = lp; 1281 } 1282 1283 if (mFirst || attachInfo.mViewVisibilityChanged) { 1284 attachInfo.mViewVisibilityChanged = false; 1285 int resizeMode = mSoftInputMode & 1286 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1287 // If we are in auto resize mode, then we need to determine 1288 // what mode to use now. 1289 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1290 final int N = attachInfo.mScrollContainers.size(); 1291 for (int i=0; i<N; i++) { 1292 if (attachInfo.mScrollContainers.get(i).isShown()) { 1293 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1294 } 1295 } 1296 if (resizeMode == 0) { 1297 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1298 } 1299 if ((lp.softInputMode & 1300 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1301 lp.softInputMode = (lp.softInputMode & 1302 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1303 resizeMode; 1304 params = lp; 1305 } 1306 } 1307 } 1308 1309 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1310 if (!PixelFormat.formatHasAlpha(params.format)) { 1311 params.format = PixelFormat.TRANSLUCENT; 1312 } 1313 } 1314 1315 if (mFitSystemWindowsRequested) { 1316 mFitSystemWindowsRequested = false; 1317 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1318 host.fitSystemWindows(mFitSystemWindowsInsets); 1319 if (mLayoutRequested) { 1320 // Short-circuit catching a new layout request here, so 1321 // we don't need to go through two layout passes when things 1322 // change due to fitting system windows, which can happen a lot. 1323 windowSizeMayChange |= measureHierarchy(host, lp, 1324 mView.getContext().getResources(), 1325 desiredWindowWidth, desiredWindowHeight); 1326 } 1327 } 1328 1329 if (layoutRequested) { 1330 // Clear this now, so that if anything requests a layout in the 1331 // rest of this function we will catch it and re-run a full 1332 // layout pass. 1333 mLayoutRequested = false; 1334 } 1335 1336 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1337 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1338 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1339 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1340 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1341 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1342 1343 final boolean computesInternalInsets = 1344 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1345 1346 boolean insetsPending = false; 1347 int relayoutResult = 0; 1348 1349 if (mFirst || windowShouldResize || insetsChanged || 1350 viewVisibilityChanged || params != null) { 1351 1352 if (viewVisibility == View.VISIBLE) { 1353 // If this window is giving internal insets to the window 1354 // manager, and it is being added or changing its visibility, 1355 // then we want to first give the window manager "fake" 1356 // insets to cause it to effectively ignore the content of 1357 // the window during layout. This avoids it briefly causing 1358 // other windows to resize/move based on the raw frame of the 1359 // window, waiting until we can finish laying out this window 1360 // and get back to the window manager with the ultimately 1361 // computed insets. 1362 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1363 } 1364 1365 if (mSurfaceHolder != null) { 1366 mSurfaceHolder.mSurfaceLock.lock(); 1367 mDrawingAllowed = true; 1368 } 1369 1370 boolean hwInitialized = false; 1371 boolean contentInsetsChanged = false; 1372 boolean visibleInsetsChanged; 1373 boolean hadSurface = mSurface.isValid(); 1374 1375 try { 1376 if (DEBUG_LAYOUT) { 1377 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1378 host.getMeasuredHeight() + ", params=" + params); 1379 } 1380 1381 final int surfaceGenerationId = mSurface.getGenerationId(); 1382 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1383 1384 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1385 + " content=" + mPendingContentInsets.toShortString() 1386 + " visible=" + mPendingVisibleInsets.toShortString() 1387 + " surface=" + mSurface); 1388 1389 if (mPendingConfiguration.seq != 0) { 1390 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1391 + mPendingConfiguration); 1392 updateConfiguration(mPendingConfiguration, !mFirst); 1393 mPendingConfiguration.seq = 0; 1394 } 1395 1396 contentInsetsChanged = !mPendingContentInsets.equals( 1397 mAttachInfo.mContentInsets); 1398 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1399 mAttachInfo.mVisibleInsets); 1400 if (contentInsetsChanged) { 1401 if (mWidth > 0 && mHeight > 0 && lp != null && 1402 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1403 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1404 mSurface != null && mSurface.isValid() && 1405 !mAttachInfo.mTurnOffWindowResizeAnim && 1406 mAttachInfo.mHardwareRenderer != null && 1407 mAttachInfo.mHardwareRenderer.isEnabled() && 1408 mAttachInfo.mHardwareRenderer.validate() && 1409 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1410 1411 disposeResizeBuffer(); 1412 1413 boolean completed = false; 1414 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1415 HardwareCanvas layerCanvas = null; 1416 try { 1417 if (mResizeBuffer == null) { 1418 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1419 mWidth, mHeight, false); 1420 } else if (mResizeBuffer.getWidth() != mWidth || 1421 mResizeBuffer.getHeight() != mHeight) { 1422 mResizeBuffer.resize(mWidth, mHeight); 1423 } 1424 // TODO: should handle create/resize failure 1425 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1426 layerCanvas.setViewport(mWidth, mHeight); 1427 layerCanvas.onPreDraw(null); 1428 final int restoreCount = layerCanvas.save(); 1429 1430 int yoff; 1431 final boolean scrolling = mScroller != null 1432 && mScroller.computeScrollOffset(); 1433 if (scrolling) { 1434 yoff = mScroller.getCurrY(); 1435 mScroller.abortAnimation(); 1436 } else { 1437 yoff = mScrollY; 1438 } 1439 1440 layerCanvas.translate(0, -yoff); 1441 if (mTranslator != null) { 1442 mTranslator.translateCanvas(layerCanvas); 1443 } 1444 1445 mView.draw(layerCanvas); 1446 1447 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1448 1449 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1450 mResizeBufferDuration = mView.getResources().getInteger( 1451 com.android.internal.R.integer.config_mediumAnimTime); 1452 completed = true; 1453 1454 layerCanvas.restoreToCount(restoreCount); 1455 } catch (OutOfMemoryError e) { 1456 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1457 } finally { 1458 if (layerCanvas != null) { 1459 layerCanvas.onPostDraw(); 1460 } 1461 if (mResizeBuffer != null) { 1462 mResizeBuffer.end(hwRendererCanvas); 1463 if (!completed) { 1464 mResizeBuffer.destroy(); 1465 mResizeBuffer = null; 1466 } 1467 } 1468 } 1469 } 1470 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1471 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1472 + mAttachInfo.mContentInsets); 1473 } 1474 if (contentInsetsChanged || mLastSystemUiVisibility != 1475 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1476 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1477 mFitSystemWindowsRequested = false; 1478 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1479 host.fitSystemWindows(mFitSystemWindowsInsets); 1480 } 1481 if (visibleInsetsChanged) { 1482 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1483 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1484 + mAttachInfo.mVisibleInsets); 1485 } 1486 1487 if (!hadSurface) { 1488 if (mSurface.isValid()) { 1489 // If we are creating a new surface, then we need to 1490 // completely redraw it. Also, when we get to the 1491 // point of drawing it we will hold off and schedule 1492 // a new traversal instead. This is so we can tell the 1493 // window manager about all of the windows being displayed 1494 // before actually drawing them, so it can display then 1495 // all at once. 1496 newSurface = true; 1497 mFullRedrawNeeded = true; 1498 mPreviousTransparentRegion.setEmpty(); 1499 1500 if (mAttachInfo.mHardwareRenderer != null) { 1501 try { 1502 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1503 mHolder.getSurface()); 1504 } catch (Surface.OutOfResourcesException e) { 1505 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1506 try { 1507 if (!mWindowSession.outOfMemory(mWindow) && 1508 Process.myUid() != Process.SYSTEM_UID) { 1509 Slog.w(TAG, "No processes killed for memory; killing self"); 1510 Process.killProcess(Process.myPid()); 1511 } 1512 } catch (RemoteException ex) { 1513 } 1514 mLayoutRequested = true; // ask wm for a new surface next time. 1515 return; 1516 } 1517 } 1518 } 1519 } else if (!mSurface.isValid()) { 1520 // If the surface has been removed, then reset the scroll 1521 // positions. 1522 mLastScrolledFocus = null; 1523 mScrollY = mCurScrollY = 0; 1524 if (mScroller != null) { 1525 mScroller.abortAnimation(); 1526 } 1527 disposeResizeBuffer(); 1528 // Our surface is gone 1529 if (mAttachInfo.mHardwareRenderer != null && 1530 mAttachInfo.mHardwareRenderer.isEnabled()) { 1531 mAttachInfo.mHardwareRenderer.destroy(true); 1532 } 1533 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1534 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1535 mFullRedrawNeeded = true; 1536 try { 1537 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1538 } catch (Surface.OutOfResourcesException e) { 1539 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1540 try { 1541 if (!mWindowSession.outOfMemory(mWindow)) { 1542 Slog.w(TAG, "No processes killed for memory; killing self"); 1543 Process.killProcess(Process.myPid()); 1544 } 1545 } catch (RemoteException ex) { 1546 } 1547 mLayoutRequested = true; // ask wm for a new surface next time. 1548 return; 1549 } 1550 } 1551 } catch (RemoteException e) { 1552 } 1553 1554 if (DEBUG_ORIENTATION) Log.v( 1555 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1556 1557 attachInfo.mWindowLeft = frame.left; 1558 attachInfo.mWindowTop = frame.top; 1559 1560 // !!FIXME!! This next section handles the case where we did not get the 1561 // window size we asked for. We should avoid this by getting a maximum size from 1562 // the window session beforehand. 1563 if (mWidth != frame.width() || mHeight != frame.height()) { 1564 mWidth = frame.width(); 1565 mHeight = frame.height(); 1566 } 1567 1568 if (mSurfaceHolder != null) { 1569 // The app owns the surface; tell it about what is going on. 1570 if (mSurface.isValid()) { 1571 // XXX .copyFrom() doesn't work! 1572 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1573 mSurfaceHolder.mSurface = mSurface; 1574 } 1575 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1576 mSurfaceHolder.mSurfaceLock.unlock(); 1577 if (mSurface.isValid()) { 1578 if (!hadSurface) { 1579 mSurfaceHolder.ungetCallbacks(); 1580 1581 mIsCreating = true; 1582 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1583 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1584 if (callbacks != null) { 1585 for (SurfaceHolder.Callback c : callbacks) { 1586 c.surfaceCreated(mSurfaceHolder); 1587 } 1588 } 1589 surfaceChanged = true; 1590 } 1591 if (surfaceChanged) { 1592 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1593 lp.format, mWidth, mHeight); 1594 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1595 if (callbacks != null) { 1596 for (SurfaceHolder.Callback c : callbacks) { 1597 c.surfaceChanged(mSurfaceHolder, lp.format, 1598 mWidth, mHeight); 1599 } 1600 } 1601 } 1602 mIsCreating = false; 1603 } else if (hadSurface) { 1604 mSurfaceHolder.ungetCallbacks(); 1605 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1606 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1607 if (callbacks != null) { 1608 for (SurfaceHolder.Callback c : callbacks) { 1609 c.surfaceDestroyed(mSurfaceHolder); 1610 } 1611 } 1612 mSurfaceHolder.mSurfaceLock.lock(); 1613 try { 1614 mSurfaceHolder.mSurface = new Surface(); 1615 } finally { 1616 mSurfaceHolder.mSurfaceLock.unlock(); 1617 } 1618 } 1619 } 1620 1621 if (mAttachInfo.mHardwareRenderer != null && 1622 mAttachInfo.mHardwareRenderer.isEnabled()) { 1623 if (hwInitialized || windowShouldResize || 1624 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1625 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1626 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1627 if (!hwInitialized) { 1628 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1629 mFullRedrawNeeded = true; 1630 } 1631 } 1632 } 1633 1634 if (!mStopped) { 1635 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1636 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1637 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1638 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1639 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1640 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1641 1642 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1643 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1644 + " mHeight=" + mHeight 1645 + " measuredHeight=" + host.getMeasuredHeight() 1646 + " coveredInsetsChanged=" + contentInsetsChanged); 1647 1648 // Ask host how big it wants to be 1649 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1650 1651 // Implementation of weights from WindowManager.LayoutParams 1652 // We just grow the dimensions as needed and re-measure if 1653 // needs be 1654 int width = host.getMeasuredWidth(); 1655 int height = host.getMeasuredHeight(); 1656 boolean measureAgain = false; 1657 1658 if (lp.horizontalWeight > 0.0f) { 1659 width += (int) ((mWidth - width) * lp.horizontalWeight); 1660 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1661 MeasureSpec.EXACTLY); 1662 measureAgain = true; 1663 } 1664 if (lp.verticalWeight > 0.0f) { 1665 height += (int) ((mHeight - height) * lp.verticalWeight); 1666 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1667 MeasureSpec.EXACTLY); 1668 measureAgain = true; 1669 } 1670 1671 if (measureAgain) { 1672 if (DEBUG_LAYOUT) Log.v(TAG, 1673 "And hey let's measure once more: width=" + width 1674 + " height=" + height); 1675 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1676 } 1677 1678 layoutRequested = true; 1679 } 1680 } 1681 } else { 1682 // Not the first pass and no window/insets/visibility change but the window 1683 // may have moved and we need check that and if so to update the left and right 1684 // in the attach info. We translate only the window frame since on window move 1685 // the window manager tells us only for the new frame but the insets are the 1686 // same and we do not want to translate them more than once. 1687 1688 // TODO: Well, we are checking whether the frame has changed similarly 1689 // to how this is done for the insets. This is however incorrect since 1690 // the insets and the frame are translated. For example, the old frame 1691 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1692 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1693 // true since we are comparing a not translated value to a translated one. 1694 // This scenario is rare but we may want to fix that. 1695 1696 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1697 || attachInfo.mWindowTop != frame.top); 1698 if (windowMoved) { 1699 if (mTranslator != null) { 1700 mTranslator.translateRectInScreenToAppWinFrame(frame); 1701 } 1702 attachInfo.mWindowLeft = frame.left; 1703 attachInfo.mWindowTop = frame.top; 1704 } 1705 } 1706 1707 final boolean didLayout = layoutRequested && !mStopped; 1708 boolean triggerGlobalLayoutListener = didLayout 1709 || attachInfo.mRecomputeGlobalAttributes; 1710 if (didLayout) { 1711 performLayout(); 1712 1713 // By this point all views have been sized and positionned 1714 // We can compute the transparent area 1715 1716 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1717 // start out transparent 1718 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1719 host.getLocationInWindow(mTmpLocation); 1720 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1721 mTmpLocation[0] + host.mRight - host.mLeft, 1722 mTmpLocation[1] + host.mBottom - host.mTop); 1723 1724 host.gatherTransparentRegion(mTransparentRegion); 1725 if (mTranslator != null) { 1726 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1727 } 1728 1729 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1730 mPreviousTransparentRegion.set(mTransparentRegion); 1731 // reconfigure window manager 1732 try { 1733 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1734 } catch (RemoteException e) { 1735 } 1736 } 1737 } 1738 1739 if (DBG) { 1740 System.out.println("======================================"); 1741 System.out.println("performTraversals -- after setFrame"); 1742 host.debug(); 1743 } 1744 } 1745 1746 if (triggerGlobalLayoutListener) { 1747 attachInfo.mRecomputeGlobalAttributes = false; 1748 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1749 1750 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1751 postSendWindowContentChangedCallback(mView); 1752 } 1753 } 1754 1755 if (computesInternalInsets) { 1756 // Clear the original insets. 1757 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1758 insets.reset(); 1759 1760 // Compute new insets in place. 1761 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1762 1763 // Tell the window manager. 1764 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1765 mLastGivenInsets.set(insets); 1766 1767 // Translate insets to screen coordinates if needed. 1768 final Rect contentInsets; 1769 final Rect visibleInsets; 1770 final Region touchableRegion; 1771 if (mTranslator != null) { 1772 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1773 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1774 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1775 } else { 1776 contentInsets = insets.contentInsets; 1777 visibleInsets = insets.visibleInsets; 1778 touchableRegion = insets.touchableRegion; 1779 } 1780 1781 try { 1782 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1783 contentInsets, visibleInsets, touchableRegion); 1784 } catch (RemoteException e) { 1785 } 1786 } 1787 } 1788 1789 boolean skipDraw = false; 1790 1791 if (mFirst) { 1792 // handle first focus request 1793 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1794 + mView.hasFocus()); 1795 if (mView != null) { 1796 if (!mView.hasFocus()) { 1797 mView.requestFocus(View.FOCUS_FORWARD); 1798 mFocusedView = mRealFocusedView = mView.findFocus(); 1799 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1800 + mFocusedView); 1801 } else { 1802 mRealFocusedView = mView.findFocus(); 1803 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1804 + mRealFocusedView); 1805 } 1806 } 1807 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1808 // The first time we relayout the window, if the system is 1809 // doing window animations, we want to hold of on any future 1810 // draws until the animation is done. 1811 mWindowsAnimating = true; 1812 } 1813 } else if (mWindowsAnimating) { 1814 skipDraw = true; 1815 } 1816 1817 mFirst = false; 1818 mWillDrawSoon = false; 1819 mNewSurfaceNeeded = false; 1820 mViewVisibility = viewVisibility; 1821 1822 if (mAttachInfo.mHasWindowFocus) { 1823 final boolean imTarget = WindowManager.LayoutParams 1824 .mayUseInputMethod(mWindowAttributes.flags); 1825 if (imTarget != mLastWasImTarget) { 1826 mLastWasImTarget = imTarget; 1827 InputMethodManager imm = InputMethodManager.peekInstance(); 1828 if (imm != null && imTarget) { 1829 imm.startGettingWindowFocus(mView); 1830 imm.onWindowFocus(mView, mView.findFocus(), 1831 mWindowAttributes.softInputMode, 1832 !mHasHadWindowFocus, mWindowAttributes.flags); 1833 } 1834 } 1835 } 1836 1837 // Remember if we must report the next draw. 1838 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1839 mReportNextDraw = true; 1840 } 1841 1842 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1843 viewVisibility != View.VISIBLE; 1844 1845 if (!cancelDraw && !newSurface) { 1846 if (!skipDraw || mReportNextDraw) { 1847 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1848 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1849 mPendingTransitions.get(i).startChangingAnimations(); 1850 } 1851 mPendingTransitions.clear(); 1852 } 1853 1854 performDraw(); 1855 } 1856 } else { 1857 if (viewVisibility == View.VISIBLE) { 1858 // Try again 1859 scheduleTraversals(); 1860 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1861 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1862 mPendingTransitions.get(i).endChangingAnimations(); 1863 } 1864 mPendingTransitions.clear(); 1865 } 1866 } 1867 1868 mIsInTraversal = false; 1869 } 1870 1871 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1872 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1873 try { 1874 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1875 } finally { 1876 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1877 } 1878 } 1879 1880 private void performLayout() { 1881 mLayoutRequested = false; 1882 mScrollMayChange = true; 1883 1884 final View host = mView; 1885 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1886 Log.v(TAG, "Laying out " + host + " to (" + 1887 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1888 } 1889 1890 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1891 try { 1892 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1893 } finally { 1894 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1895 } 1896 } 1897 1898 public void requestTransparentRegion(View child) { 1899 // the test below should not fail unless someone is messing with us 1900 checkThread(); 1901 if (mView == child) { 1902 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1903 // Need to make sure we re-evaluate the window attributes next 1904 // time around, to ensure the window has the correct format. 1905 mWindowAttributesChanged = true; 1906 mWindowAttributesChangesFlag = 0; 1907 requestLayout(); 1908 } 1909 } 1910 1911 /** 1912 * Figures out the measure spec for the root view in a window based on it's 1913 * layout params. 1914 * 1915 * @param windowSize 1916 * The available width or height of the window 1917 * 1918 * @param rootDimension 1919 * The layout params for one dimension (width or height) of the 1920 * window. 1921 * 1922 * @return The measure spec to use to measure the root view. 1923 */ 1924 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1925 int measureSpec; 1926 switch (rootDimension) { 1927 1928 case ViewGroup.LayoutParams.MATCH_PARENT: 1929 // Window can't resize. Force root view to be windowSize. 1930 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1931 break; 1932 case ViewGroup.LayoutParams.WRAP_CONTENT: 1933 // Window can resize. Set max size for root view. 1934 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1935 break; 1936 default: 1937 // Window wants to be an exact size. Force root view to be that size. 1938 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1939 break; 1940 } 1941 return measureSpec; 1942 } 1943 1944 int mHardwareYOffset; 1945 int mResizeAlpha; 1946 final Paint mResizePaint = new Paint(); 1947 1948 public void onHardwarePreDraw(HardwareCanvas canvas) { 1949 canvas.translate(0, -mHardwareYOffset); 1950 } 1951 1952 public void onHardwarePostDraw(HardwareCanvas canvas) { 1953 if (mResizeBuffer != null) { 1954 mResizePaint.setAlpha(mResizeAlpha); 1955 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1956 } 1957 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1958 } 1959 1960 /** 1961 * @hide 1962 */ 1963 void outputDisplayList(View view) { 1964 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1965 DisplayList displayList = view.getDisplayList(); 1966 if (displayList != null) { 1967 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1968 } 1969 } 1970 } 1971 1972 /** 1973 * @see #PROPERTY_PROFILE_RENDERING 1974 */ 1975 private void profileRendering(boolean enabled) { 1976 if (mProfileRendering) { 1977 mRenderProfilingEnabled = enabled; 1978 if (mRenderProfiler == null) { 1979 mRenderProfiler = new Thread(new Runnable() { 1980 @Override 1981 public void run() { 1982 Log.d(TAG, "Starting profiling thread"); 1983 while (mRenderProfilingEnabled) { 1984 mAttachInfo.mHandler.post(new Runnable() { 1985 @Override 1986 public void run() { 1987 mDirty.set(0, 0, mWidth, mHeight); 1988 scheduleTraversals(); 1989 } 1990 }); 1991 try { 1992 // TODO: This should use vsync when we get an API 1993 Thread.sleep(15); 1994 } catch (InterruptedException e) { 1995 Log.d(TAG, "Exiting profiling thread"); 1996 } 1997 } 1998 } 1999 }, "Rendering Profiler"); 2000 mRenderProfiler.start(); 2001 } else { 2002 mRenderProfiler.interrupt(); 2003 mRenderProfiler = null; 2004 } 2005 } 2006 } 2007 2008 /** 2009 * Called from draw() when DEBUG_FPS is enabled 2010 */ 2011 private void trackFPS() { 2012 // Tracks frames per second drawn. First value in a series of draws may be bogus 2013 // because it down not account for the intervening idle time 2014 long nowTime = System.currentTimeMillis(); 2015 if (mFpsStartTime < 0) { 2016 mFpsStartTime = mFpsPrevTime = nowTime; 2017 mFpsNumFrames = 0; 2018 } else { 2019 ++mFpsNumFrames; 2020 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2021 long frameTime = nowTime - mFpsPrevTime; 2022 long totalTime = nowTime - mFpsStartTime; 2023 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2024 mFpsPrevTime = nowTime; 2025 if (totalTime > 1000) { 2026 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2027 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2028 mFpsStartTime = nowTime; 2029 mFpsNumFrames = 0; 2030 } 2031 } 2032 } 2033 2034 private void performDraw() { 2035 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2036 return; 2037 } 2038 2039 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2040 mFullRedrawNeeded = false; 2041 2042 mIsDrawing = true; 2043 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2044 try { 2045 draw(fullRedrawNeeded); 2046 } finally { 2047 mIsDrawing = false; 2048 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2049 } 2050 2051 if (mReportNextDraw) { 2052 mReportNextDraw = false; 2053 2054 if (LOCAL_LOGV) { 2055 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2056 } 2057 if (mSurfaceHolder != null && mSurface.isValid()) { 2058 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2059 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2060 if (callbacks != null) { 2061 for (SurfaceHolder.Callback c : callbacks) { 2062 if (c instanceof SurfaceHolder.Callback2) { 2063 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2064 mSurfaceHolder); 2065 } 2066 } 2067 } 2068 } 2069 try { 2070 mWindowSession.finishDrawing(mWindow); 2071 } catch (RemoteException e) { 2072 } 2073 } 2074 } 2075 2076 private void draw(boolean fullRedrawNeeded) { 2077 Surface surface = mSurface; 2078 if (surface == null || !surface.isValid()) { 2079 return; 2080 } 2081 2082 if (DEBUG_FPS) { 2083 trackFPS(); 2084 } 2085 2086 if (!sFirstDrawComplete) { 2087 synchronized (sFirstDrawHandlers) { 2088 sFirstDrawComplete = true; 2089 final int count = sFirstDrawHandlers.size(); 2090 for (int i = 0; i< count; i++) { 2091 mHandler.post(sFirstDrawHandlers.get(i)); 2092 } 2093 } 2094 } 2095 2096 scrollToRectOrFocus(null, false); 2097 2098 final AttachInfo attachInfo = mAttachInfo; 2099 if (attachInfo.mViewScrollChanged) { 2100 attachInfo.mViewScrollChanged = false; 2101 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2102 } 2103 2104 int yoff; 2105 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2106 if (animating) { 2107 yoff = mScroller.getCurrY(); 2108 } else { 2109 yoff = mScrollY; 2110 } 2111 if (mCurScrollY != yoff) { 2112 mCurScrollY = yoff; 2113 fullRedrawNeeded = true; 2114 } 2115 2116 final float appScale = attachInfo.mApplicationScale; 2117 final boolean scalingRequired = attachInfo.mScalingRequired; 2118 2119 int resizeAlpha = 0; 2120 if (mResizeBuffer != null) { 2121 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2122 if (deltaTime < mResizeBufferDuration) { 2123 float amt = deltaTime/(float) mResizeBufferDuration; 2124 amt = mResizeInterpolator.getInterpolation(amt); 2125 animating = true; 2126 resizeAlpha = 255 - (int)(amt*255); 2127 } else { 2128 disposeResizeBuffer(); 2129 } 2130 } 2131 2132 final Rect dirty = mDirty; 2133 if (mSurfaceHolder != null) { 2134 // The app owns the surface, we won't draw. 2135 dirty.setEmpty(); 2136 if (animating) { 2137 if (mScroller != null) { 2138 mScroller.abortAnimation(); 2139 } 2140 disposeResizeBuffer(); 2141 } 2142 return; 2143 } 2144 2145 if (fullRedrawNeeded) { 2146 attachInfo.mIgnoreDirtyState = true; 2147 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2148 } 2149 2150 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2151 Log.v(TAG, "Draw " + mView + "/" 2152 + mWindowAttributes.getTitle() 2153 + ": dirty={" + dirty.left + "," + dirty.top 2154 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2155 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2156 appScale + ", width=" + mWidth + ", height=" + mHeight); 2157 } 2158 2159 attachInfo.mTreeObserver.dispatchOnDraw(); 2160 2161 if (!dirty.isEmpty() || mIsAnimating) { 2162 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2163 // Draw with hardware renderer. 2164 mIsAnimating = false; 2165 mHardwareYOffset = yoff; 2166 mResizeAlpha = resizeAlpha; 2167 2168 mCurrentDirty.set(dirty); 2169 mCurrentDirty.union(mPreviousDirty); 2170 mPreviousDirty.set(dirty); 2171 dirty.setEmpty(); 2172 2173 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2174 animating ? null : mCurrentDirty)) { 2175 mPreviousDirty.set(0, 0, mWidth, mHeight); 2176 } 2177 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2178 return; 2179 } 2180 } 2181 2182 if (animating) { 2183 mFullRedrawNeeded = true; 2184 scheduleTraversals(); 2185 } 2186 } 2187 2188 /** 2189 * @return true if drawing was succesfull, false if an error occurred 2190 */ 2191 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2192 boolean scalingRequired, Rect dirty) { 2193 2194 // If we get here with a disabled & requested hardware renderer, something went 2195 // wrong (an invalidate posted right before we destroyed the hardware surface 2196 // for instance) so we should just bail out. Locking the surface with software 2197 // rendering at this point would lock it forever and prevent hardware renderer 2198 // from doing its job when it comes back. 2199 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2200 attachInfo.mHardwareRenderer.isRequested()) { 2201 mFullRedrawNeeded = true; 2202 scheduleTraversals(); 2203 return false; 2204 } 2205 2206 // Draw with software renderer. 2207 Canvas canvas; 2208 try { 2209 int left = dirty.left; 2210 int top = dirty.top; 2211 int right = dirty.right; 2212 int bottom = dirty.bottom; 2213 2214 canvas = mSurface.lockCanvas(dirty); 2215 2216 if (left != dirty.left || top != dirty.top || right != dirty.right || 2217 bottom != dirty.bottom) { 2218 attachInfo.mIgnoreDirtyState = true; 2219 } 2220 2221 // TODO: Do this in native 2222 canvas.setDensity(mDensity); 2223 } catch (Surface.OutOfResourcesException e) { 2224 Log.e(TAG, "OutOfResourcesException locking surface", e); 2225 try { 2226 if (!mWindowSession.outOfMemory(mWindow)) { 2227 Slog.w(TAG, "No processes killed for memory; killing self"); 2228 Process.killProcess(Process.myPid()); 2229 } 2230 } catch (RemoteException ex) { 2231 } 2232 mLayoutRequested = true; // ask wm for a new surface next time. 2233 return false; 2234 } catch (IllegalArgumentException e) { 2235 Log.e(TAG, "Could not lock surface", e); 2236 // Don't assume this is due to out of memory, it could be 2237 // something else, and if it is something else then we could 2238 // kill stuff (or ourself) for no reason. 2239 mLayoutRequested = true; // ask wm for a new surface next time. 2240 return false; 2241 } 2242 2243 try { 2244 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2245 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2246 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2247 //canvas.drawARGB(255, 255, 0, 0); 2248 } 2249 2250 // If this bitmap's format includes an alpha channel, we 2251 // need to clear it before drawing so that the child will 2252 // properly re-composite its drawing on a transparent 2253 // background. This automatically respects the clip/dirty region 2254 // or 2255 // If we are applying an offset, we need to clear the area 2256 // where the offset doesn't appear to avoid having garbage 2257 // left in the blank areas. 2258 if (!canvas.isOpaque() || yoff != 0) { 2259 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2260 } 2261 2262 dirty.setEmpty(); 2263 mIsAnimating = false; 2264 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2265 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2266 2267 if (DEBUG_DRAW) { 2268 Context cxt = mView.getContext(); 2269 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2270 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2271 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2272 } 2273 try { 2274 canvas.translate(0, -yoff); 2275 if (mTranslator != null) { 2276 mTranslator.translateCanvas(canvas); 2277 } 2278 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2279 attachInfo.mSetIgnoreDirtyState = false; 2280 2281 mView.draw(canvas); 2282 2283 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2284 } finally { 2285 if (!attachInfo.mSetIgnoreDirtyState) { 2286 // Only clear the flag if it was not set during the mView.draw() call 2287 attachInfo.mIgnoreDirtyState = false; 2288 } 2289 } 2290 } finally { 2291 try { 2292 surface.unlockCanvasAndPost(canvas); 2293 } catch (IllegalArgumentException e) { 2294 Log.e(TAG, "Could not unlock surface", e); 2295 mLayoutRequested = true; // ask wm for a new surface next time. 2296 //noinspection ReturnInsideFinallyBlock 2297 return false; 2298 } 2299 2300 if (LOCAL_LOGV) { 2301 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2302 } 2303 } 2304 return true; 2305 } 2306 2307 /** 2308 * We want to draw a highlight around the current accessibility focused. 2309 * Since adding a style for all possible view is not a viable option we 2310 * have this specialized drawing method. 2311 * 2312 * Note: We are doing this here to be able to draw the highlight for 2313 * virtual views in addition to real ones. 2314 * 2315 * @param canvas The canvas on which to draw. 2316 */ 2317 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2318 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2319 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2320 return; 2321 } 2322 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2323 return; 2324 } 2325 Drawable drawable = getAccessibilityFocusedDrawable(); 2326 if (drawable == null) { 2327 return; 2328 } 2329 AccessibilityNodeProvider provider = 2330 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2331 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2332 if (provider == null) { 2333 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2334 } else { 2335 if (mAccessibilityFocusedVirtualView == null) { 2336 return; 2337 } 2338 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2339 } 2340 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2341 drawable.setBounds(bounds); 2342 drawable.draw(canvas); 2343 } 2344 2345 private Drawable getAccessibilityFocusedDrawable() { 2346 if (mAttachInfo != null) { 2347 // Lazily load the accessibility focus drawable. 2348 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2349 TypedValue value = new TypedValue(); 2350 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2351 R.attr.accessibilityFocusedDrawable, value, true); 2352 if (resolved) { 2353 mAttachInfo.mAccessibilityFocusDrawable = 2354 mView.mContext.getResources().getDrawable(value.resourceId); 2355 } 2356 } 2357 return mAttachInfo.mAccessibilityFocusDrawable; 2358 } 2359 return null; 2360 } 2361 2362 void invalidateDisplayLists() { 2363 final ArrayList<DisplayList> displayLists = mDisplayLists; 2364 final int count = displayLists.size(); 2365 2366 for (int i = 0; i < count; i++) { 2367 final DisplayList displayList = displayLists.get(i); 2368 displayList.invalidate(); 2369 displayList.clear(); 2370 } 2371 2372 displayLists.clear(); 2373 } 2374 2375 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2376 final View.AttachInfo attachInfo = mAttachInfo; 2377 final Rect ci = attachInfo.mContentInsets; 2378 final Rect vi = attachInfo.mVisibleInsets; 2379 int scrollY = 0; 2380 boolean handled = false; 2381 2382 if (vi.left > ci.left || vi.top > ci.top 2383 || vi.right > ci.right || vi.bottom > ci.bottom) { 2384 // We'll assume that we aren't going to change the scroll 2385 // offset, since we want to avoid that unless it is actually 2386 // going to make the focus visible... otherwise we scroll 2387 // all over the place. 2388 scrollY = mScrollY; 2389 // We can be called for two different situations: during a draw, 2390 // to update the scroll position if the focus has changed (in which 2391 // case 'rectangle' is null), or in response to a 2392 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2393 // is non-null and we just want to scroll to whatever that 2394 // rectangle is). 2395 View focus = mRealFocusedView; 2396 2397 // When in touch mode, focus points to the previously focused view, 2398 // which may have been removed from the view hierarchy. The following 2399 // line checks whether the view is still in our hierarchy. 2400 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2401 mRealFocusedView = null; 2402 return false; 2403 } 2404 2405 if (focus != mLastScrolledFocus) { 2406 // If the focus has changed, then ignore any requests to scroll 2407 // to a rectangle; first we want to make sure the entire focus 2408 // view is visible. 2409 rectangle = null; 2410 } 2411 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2412 + " rectangle=" + rectangle + " ci=" + ci 2413 + " vi=" + vi); 2414 if (focus == mLastScrolledFocus && !mScrollMayChange 2415 && rectangle == null) { 2416 // Optimization: if the focus hasn't changed since last 2417 // time, and no layout has happened, then just leave things 2418 // as they are. 2419 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2420 + mScrollY + " vi=" + vi.toShortString()); 2421 } else if (focus != null) { 2422 // We need to determine if the currently focused view is 2423 // within the visible part of the window and, if not, apply 2424 // a pan so it can be seen. 2425 mLastScrolledFocus = focus; 2426 mScrollMayChange = false; 2427 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2428 // Try to find the rectangle from the focus view. 2429 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2430 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2431 + mView.getWidth() + " h=" + mView.getHeight() 2432 + " ci=" + ci.toShortString() 2433 + " vi=" + vi.toShortString()); 2434 if (rectangle == null) { 2435 focus.getFocusedRect(mTempRect); 2436 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2437 + ": focusRect=" + mTempRect.toShortString()); 2438 if (mView instanceof ViewGroup) { 2439 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2440 focus, mTempRect); 2441 } 2442 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2443 "Focus in window: focusRect=" 2444 + mTempRect.toShortString() 2445 + " visRect=" + mVisRect.toShortString()); 2446 } else { 2447 mTempRect.set(rectangle); 2448 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2449 "Request scroll to rect: " 2450 + mTempRect.toShortString() 2451 + " visRect=" + mVisRect.toShortString()); 2452 } 2453 if (mTempRect.intersect(mVisRect)) { 2454 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2455 "Focus window visible rect: " 2456 + mTempRect.toShortString()); 2457 if (mTempRect.height() > 2458 (mView.getHeight()-vi.top-vi.bottom)) { 2459 // If the focus simply is not going to fit, then 2460 // best is probably just to leave things as-is. 2461 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2462 "Too tall; leaving scrollY=" + scrollY); 2463 } else if ((mTempRect.top-scrollY) < vi.top) { 2464 scrollY -= vi.top - (mTempRect.top-scrollY); 2465 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2466 "Top covered; scrollY=" + scrollY); 2467 } else if ((mTempRect.bottom-scrollY) 2468 > (mView.getHeight()-vi.bottom)) { 2469 scrollY += (mTempRect.bottom-scrollY) 2470 - (mView.getHeight()-vi.bottom); 2471 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2472 "Bottom covered; scrollY=" + scrollY); 2473 } 2474 handled = true; 2475 } 2476 } 2477 } 2478 } 2479 2480 if (scrollY != mScrollY) { 2481 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2482 + mScrollY + " , new=" + scrollY); 2483 if (!immediate && mResizeBuffer == null) { 2484 if (mScroller == null) { 2485 mScroller = new Scroller(mView.getContext()); 2486 } 2487 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2488 } else if (mScroller != null) { 2489 mScroller.abortAnimation(); 2490 } 2491 mScrollY = scrollY; 2492 } 2493 2494 return handled; 2495 } 2496 2497 /** 2498 * @hide 2499 */ 2500 public View getAccessibilityFocusedHost() { 2501 return mAccessibilityFocusedHost; 2502 } 2503 2504 /** 2505 * @hide 2506 */ 2507 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2508 return mAccessibilityFocusedVirtualView; 2509 } 2510 2511 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2512 // If we have a virtual view with accessibility focus we need 2513 // to clear the focus and invalidate the virtual view bounds. 2514 if (mAccessibilityFocusedVirtualView != null) { 2515 2516 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2517 View focusHost = mAccessibilityFocusedHost; 2518 focusHost.clearAccessibilityFocusNoCallbacks(); 2519 2520 // Wipe the state of the current accessibility focus since 2521 // the call into the provider to clear accessibility focus 2522 // will fire an accessibility event which will end up calling 2523 // this method and we want to have clean state when this 2524 // invocation happens. 2525 mAccessibilityFocusedHost = null; 2526 mAccessibilityFocusedVirtualView = null; 2527 2528 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2529 if (provider != null) { 2530 // Invalidate the area of the cleared accessibility focus. 2531 focusNode.getBoundsInParent(mTempRect); 2532 focusHost.invalidate(mTempRect); 2533 // Clear accessibility focus in the virtual node. 2534 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2535 focusNode.getSourceNodeId()); 2536 provider.performAction(virtualNodeId, 2537 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2538 } 2539 focusNode.recycle(); 2540 } 2541 if (mAccessibilityFocusedHost != null) { 2542 // Clear accessibility focus in the view. 2543 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2544 } 2545 2546 // Set the new focus host and node. 2547 mAccessibilityFocusedHost = view; 2548 mAccessibilityFocusedVirtualView = node; 2549 } 2550 2551 public void requestChildFocus(View child, View focused) { 2552 checkThread(); 2553 2554 if (DEBUG_INPUT_RESIZE) { 2555 Log.v(TAG, "Request child focus: focus now " + focused); 2556 } 2557 2558 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2559 scheduleTraversals(); 2560 2561 mFocusedView = mRealFocusedView = focused; 2562 } 2563 2564 public void clearChildFocus(View child) { 2565 checkThread(); 2566 2567 if (DEBUG_INPUT_RESIZE) { 2568 Log.v(TAG, "Clearing child focus"); 2569 } 2570 2571 mOldFocusedView = mFocusedView; 2572 2573 // Invoke the listener only if there is no view to take focus 2574 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2575 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2576 } 2577 2578 mFocusedView = mRealFocusedView = null; 2579 } 2580 2581 @Override 2582 public ViewParent getParentForAccessibility() { 2583 return null; 2584 } 2585 2586 public void focusableViewAvailable(View v) { 2587 checkThread(); 2588 if (mView != null) { 2589 if (!mView.hasFocus()) { 2590 v.requestFocus(); 2591 } else { 2592 // the one case where will transfer focus away from the current one 2593 // is if the current view is a view group that prefers to give focus 2594 // to its children first AND the view is a descendant of it. 2595 mFocusedView = mView.findFocus(); 2596 boolean descendantsHaveDibsOnFocus = 2597 (mFocusedView instanceof ViewGroup) && 2598 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2599 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2600 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2601 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2602 v.requestFocus(); 2603 } 2604 } 2605 } 2606 } 2607 2608 public void recomputeViewAttributes(View child) { 2609 checkThread(); 2610 if (mView == child) { 2611 mAttachInfo.mRecomputeGlobalAttributes = true; 2612 if (!mWillDrawSoon) { 2613 scheduleTraversals(); 2614 } 2615 } 2616 } 2617 2618 void dispatchDetachedFromWindow() { 2619 if (mView != null && mView.mAttachInfo != null) { 2620 if (mAttachInfo.mHardwareRenderer != null && 2621 mAttachInfo.mHardwareRenderer.isEnabled()) { 2622 mAttachInfo.mHardwareRenderer.validate(); 2623 } 2624 mView.dispatchDetachedFromWindow(); 2625 } 2626 2627 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2628 mAccessibilityManager.removeAccessibilityStateChangeListener( 2629 mAccessibilityInteractionConnectionManager); 2630 removeSendWindowContentChangedCallback(); 2631 2632 destroyHardwareRenderer(); 2633 2634 setAccessibilityFocus(null, null); 2635 2636 mView = null; 2637 mAttachInfo.mRootView = null; 2638 mAttachInfo.mSurface = null; 2639 2640 mSurface.release(); 2641 2642 if (mInputQueueCallback != null && mInputQueue != null) { 2643 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2644 mInputQueueCallback = null; 2645 mInputQueue = null; 2646 } else if (mInputEventReceiver != null) { 2647 mInputEventReceiver.dispose(); 2648 mInputEventReceiver = null; 2649 } 2650 try { 2651 mWindowSession.remove(mWindow); 2652 } catch (RemoteException e) { 2653 } 2654 2655 // Dispose the input channel after removing the window so the Window Manager 2656 // doesn't interpret the input channel being closed as an abnormal termination. 2657 if (mInputChannel != null) { 2658 mInputChannel.dispose(); 2659 mInputChannel = null; 2660 } 2661 2662 unscheduleTraversals(); 2663 } 2664 2665 void updateConfiguration(Configuration config, boolean force) { 2666 if (DEBUG_CONFIGURATION) Log.v(TAG, 2667 "Applying new config to window " 2668 + mWindowAttributes.getTitle() 2669 + ": " + config); 2670 2671 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2672 if (ci != null) { 2673 config = new Configuration(config); 2674 ci.applyToConfiguration(mNoncompatDensity, config); 2675 } 2676 2677 synchronized (sConfigCallbacks) { 2678 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2679 sConfigCallbacks.get(i).onConfigurationChanged(config); 2680 } 2681 } 2682 if (mView != null) { 2683 // At this point the resources have been updated to 2684 // have the most recent config, whatever that is. Use 2685 // the one in them which may be newer. 2686 config = mView.getResources().getConfiguration(); 2687 if (force || mLastConfiguration.diff(config) != 0) { 2688 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2689 final int currentLayoutDirection = config.getLayoutDirection(); 2690 mLastConfiguration.setTo(config); 2691 if (lastLayoutDirection != currentLayoutDirection && 2692 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2693 mView.setLayoutDirection(currentLayoutDirection); 2694 } 2695 mView.dispatchConfigurationChanged(config); 2696 } 2697 } 2698 } 2699 2700 /** 2701 * Return true if child is an ancestor of parent, (or equal to the parent). 2702 */ 2703 public static boolean isViewDescendantOf(View child, View parent) { 2704 if (child == parent) { 2705 return true; 2706 } 2707 2708 final ViewParent theParent = child.getParent(); 2709 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2710 } 2711 2712 private static void forceLayout(View view) { 2713 view.forceLayout(); 2714 if (view instanceof ViewGroup) { 2715 ViewGroup group = (ViewGroup) view; 2716 final int count = group.getChildCount(); 2717 for (int i = 0; i < count; i++) { 2718 forceLayout(group.getChildAt(i)); 2719 } 2720 } 2721 } 2722 2723 private final static int MSG_INVALIDATE = 1; 2724 private final static int MSG_INVALIDATE_RECT = 2; 2725 private final static int MSG_DIE = 3; 2726 private final static int MSG_RESIZED = 4; 2727 private final static int MSG_RESIZED_REPORT = 5; 2728 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2729 private final static int MSG_DISPATCH_KEY = 7; 2730 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2731 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2732 private final static int MSG_IME_FINISHED_EVENT = 10; 2733 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2734 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2735 private final static int MSG_CHECK_FOCUS = 13; 2736 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2737 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2738 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2739 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2740 private final static int MSG_UPDATE_CONFIGURATION = 18; 2741 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2742 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2743 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2744 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2745 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2746 private final static int MSG_INVALIDATE_WORLD = 24; 2747 private final static int MSG_WINDOW_MOVED = 25; 2748 2749 final class ViewRootHandler extends Handler { 2750 @Override 2751 public String getMessageName(Message message) { 2752 switch (message.what) { 2753 case MSG_INVALIDATE: 2754 return "MSG_INVALIDATE"; 2755 case MSG_INVALIDATE_RECT: 2756 return "MSG_INVALIDATE_RECT"; 2757 case MSG_DIE: 2758 return "MSG_DIE"; 2759 case MSG_RESIZED: 2760 return "MSG_RESIZED"; 2761 case MSG_RESIZED_REPORT: 2762 return "MSG_RESIZED_REPORT"; 2763 case MSG_WINDOW_FOCUS_CHANGED: 2764 return "MSG_WINDOW_FOCUS_CHANGED"; 2765 case MSG_DISPATCH_KEY: 2766 return "MSG_DISPATCH_KEY"; 2767 case MSG_DISPATCH_APP_VISIBILITY: 2768 return "MSG_DISPATCH_APP_VISIBILITY"; 2769 case MSG_DISPATCH_GET_NEW_SURFACE: 2770 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2771 case MSG_IME_FINISHED_EVENT: 2772 return "MSG_IME_FINISHED_EVENT"; 2773 case MSG_DISPATCH_KEY_FROM_IME: 2774 return "MSG_DISPATCH_KEY_FROM_IME"; 2775 case MSG_FINISH_INPUT_CONNECTION: 2776 return "MSG_FINISH_INPUT_CONNECTION"; 2777 case MSG_CHECK_FOCUS: 2778 return "MSG_CHECK_FOCUS"; 2779 case MSG_CLOSE_SYSTEM_DIALOGS: 2780 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2781 case MSG_DISPATCH_DRAG_EVENT: 2782 return "MSG_DISPATCH_DRAG_EVENT"; 2783 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2784 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2785 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2786 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2787 case MSG_UPDATE_CONFIGURATION: 2788 return "MSG_UPDATE_CONFIGURATION"; 2789 case MSG_PROCESS_INPUT_EVENTS: 2790 return "MSG_PROCESS_INPUT_EVENTS"; 2791 case MSG_DISPATCH_SCREEN_STATE: 2792 return "MSG_DISPATCH_SCREEN_STATE"; 2793 case MSG_INVALIDATE_DISPLAY_LIST: 2794 return "MSG_INVALIDATE_DISPLAY_LIST"; 2795 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2796 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2797 case MSG_DISPATCH_DONE_ANIMATING: 2798 return "MSG_DISPATCH_DONE_ANIMATING"; 2799 case MSG_WINDOW_MOVED: 2800 return "MSG_WINDOW_MOVED"; 2801 } 2802 return super.getMessageName(message); 2803 } 2804 2805 @Override 2806 public void handleMessage(Message msg) { 2807 switch (msg.what) { 2808 case MSG_INVALIDATE: 2809 ((View) msg.obj).invalidate(); 2810 break; 2811 case MSG_INVALIDATE_RECT: 2812 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2813 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2814 info.release(); 2815 break; 2816 case MSG_IME_FINISHED_EVENT: 2817 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2818 break; 2819 case MSG_PROCESS_INPUT_EVENTS: 2820 mProcessInputEventsScheduled = false; 2821 doProcessInputEvents(); 2822 break; 2823 case MSG_DISPATCH_APP_VISIBILITY: 2824 handleAppVisibility(msg.arg1 != 0); 2825 break; 2826 case MSG_DISPATCH_GET_NEW_SURFACE: 2827 handleGetNewSurface(); 2828 break; 2829 case MSG_RESIZED: { 2830 // Recycled in the fall through... 2831 SomeArgs args = (SomeArgs) msg.obj; 2832 if (mWinFrame.equals(args.arg1) 2833 && mPendingContentInsets.equals(args.arg2) 2834 && mPendingVisibleInsets.equals(args.arg3) 2835 && args.arg4 == null) { 2836 break; 2837 } 2838 } // fall through... 2839 case MSG_RESIZED_REPORT: 2840 if (mAdded) { 2841 SomeArgs args = (SomeArgs) msg.obj; 2842 2843 Configuration config = (Configuration) args.arg4; 2844 if (config != null) { 2845 updateConfiguration(config, false); 2846 } 2847 2848 mWinFrame.set((Rect) args.arg1); 2849 mPendingContentInsets.set((Rect) args.arg2); 2850 mPendingVisibleInsets.set((Rect) args.arg3); 2851 2852 args.recycle(); 2853 2854 if (msg.what == MSG_RESIZED_REPORT) { 2855 mReportNextDraw = true; 2856 } 2857 2858 if (mView != null) { 2859 forceLayout(mView); 2860 } 2861 2862 requestLayout(); 2863 } 2864 break; 2865 case MSG_WINDOW_MOVED: 2866 if (mAdded) { 2867 final int w = mWinFrame.width(); 2868 final int h = mWinFrame.height(); 2869 final int l = msg.arg1; 2870 final int t = msg.arg2; 2871 mWinFrame.left = l; 2872 mWinFrame.right = l + w; 2873 mWinFrame.top = t; 2874 mWinFrame.bottom = t + h; 2875 2876 if (mView != null) { 2877 forceLayout(mView); 2878 } 2879 requestLayout(); 2880 } 2881 break; 2882 case MSG_WINDOW_FOCUS_CHANGED: { 2883 if (mAdded) { 2884 boolean hasWindowFocus = msg.arg1 != 0; 2885 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2886 2887 profileRendering(hasWindowFocus); 2888 2889 if (hasWindowFocus) { 2890 boolean inTouchMode = msg.arg2 != 0; 2891 ensureTouchModeLocally(inTouchMode); 2892 2893 if (mAttachInfo.mHardwareRenderer != null && 2894 mSurface != null && mSurface.isValid()) { 2895 mFullRedrawNeeded = true; 2896 try { 2897 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2898 mWidth, mHeight, mHolder.getSurface())) { 2899 mFullRedrawNeeded = true; 2900 } 2901 } catch (Surface.OutOfResourcesException e) { 2902 Log.e(TAG, "OutOfResourcesException locking surface", e); 2903 try { 2904 if (!mWindowSession.outOfMemory(mWindow)) { 2905 Slog.w(TAG, "No processes killed for memory; killing self"); 2906 Process.killProcess(Process.myPid()); 2907 } 2908 } catch (RemoteException ex) { 2909 } 2910 // Retry in a bit. 2911 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2912 return; 2913 } 2914 } 2915 } 2916 2917 mLastWasImTarget = WindowManager.LayoutParams 2918 .mayUseInputMethod(mWindowAttributes.flags); 2919 2920 InputMethodManager imm = InputMethodManager.peekInstance(); 2921 if (mView != null) { 2922 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2923 imm.startGettingWindowFocus(mView); 2924 } 2925 mAttachInfo.mKeyDispatchState.reset(); 2926 mView.dispatchWindowFocusChanged(hasWindowFocus); 2927 } 2928 2929 // Note: must be done after the focus change callbacks, 2930 // so all of the view state is set up correctly. 2931 if (hasWindowFocus) { 2932 if (imm != null && mLastWasImTarget) { 2933 imm.onWindowFocus(mView, mView.findFocus(), 2934 mWindowAttributes.softInputMode, 2935 !mHasHadWindowFocus, mWindowAttributes.flags); 2936 } 2937 // Clear the forward bit. We can just do this directly, since 2938 // the window manager doesn't care about it. 2939 mWindowAttributes.softInputMode &= 2940 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2941 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2942 .softInputMode &= 2943 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2944 mHasHadWindowFocus = true; 2945 } 2946 2947 setAccessibilityFocus(null, null); 2948 2949 if (mView != null && mAccessibilityManager.isEnabled()) { 2950 if (hasWindowFocus) { 2951 mView.sendAccessibilityEvent( 2952 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2953 } 2954 } 2955 } 2956 } break; 2957 case MSG_DIE: 2958 doDie(); 2959 break; 2960 case MSG_DISPATCH_KEY: { 2961 KeyEvent event = (KeyEvent)msg.obj; 2962 enqueueInputEvent(event, null, 0, true); 2963 } break; 2964 case MSG_DISPATCH_KEY_FROM_IME: { 2965 if (LOCAL_LOGV) Log.v( 2966 TAG, "Dispatching key " 2967 + msg.obj + " from IME to " + mView); 2968 KeyEvent event = (KeyEvent)msg.obj; 2969 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2970 // The IME is trying to say this event is from the 2971 // system! Bad bad bad! 2972 //noinspection UnusedAssignment 2973 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2974 } 2975 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2976 } break; 2977 case MSG_FINISH_INPUT_CONNECTION: { 2978 InputMethodManager imm = InputMethodManager.peekInstance(); 2979 if (imm != null) { 2980 imm.reportFinishInputConnection((InputConnection)msg.obj); 2981 } 2982 } break; 2983 case MSG_CHECK_FOCUS: { 2984 InputMethodManager imm = InputMethodManager.peekInstance(); 2985 if (imm != null) { 2986 imm.checkFocus(); 2987 } 2988 } break; 2989 case MSG_CLOSE_SYSTEM_DIALOGS: { 2990 if (mView != null) { 2991 mView.onCloseSystemDialogs((String)msg.obj); 2992 } 2993 } break; 2994 case MSG_DISPATCH_DRAG_EVENT: 2995 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2996 DragEvent event = (DragEvent)msg.obj; 2997 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2998 handleDragEvent(event); 2999 } break; 3000 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3001 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3002 } break; 3003 case MSG_UPDATE_CONFIGURATION: { 3004 Configuration config = (Configuration)msg.obj; 3005 if (config.isOtherSeqNewer(mLastConfiguration)) { 3006 config = mLastConfiguration; 3007 } 3008 updateConfiguration(config, false); 3009 } break; 3010 case MSG_DISPATCH_SCREEN_STATE: { 3011 if (mView != null) { 3012 handleScreenStateChange(msg.arg1 == 1); 3013 } 3014 } break; 3015 case MSG_INVALIDATE_DISPLAY_LIST: { 3016 invalidateDisplayLists(); 3017 } break; 3018 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3019 setAccessibilityFocus(null, null); 3020 } break; 3021 case MSG_DISPATCH_DONE_ANIMATING: { 3022 handleDispatchDoneAnimating(); 3023 } break; 3024 case MSG_INVALIDATE_WORLD: { 3025 if (mView != null) { 3026 invalidateWorld(mView); 3027 } 3028 } break; 3029 } 3030 } 3031 } 3032 3033 final ViewRootHandler mHandler = new ViewRootHandler(); 3034 3035 /** 3036 * Something in the current window tells us we need to change the touch mode. For 3037 * example, we are not in touch mode, and the user touches the screen. 3038 * 3039 * If the touch mode has changed, tell the window manager, and handle it locally. 3040 * 3041 * @param inTouchMode Whether we want to be in touch mode. 3042 * @return True if the touch mode changed and focus changed was changed as a result 3043 */ 3044 boolean ensureTouchMode(boolean inTouchMode) { 3045 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3046 + "touch mode is " + mAttachInfo.mInTouchMode); 3047 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3048 3049 // tell the window manager 3050 try { 3051 mWindowSession.setInTouchMode(inTouchMode); 3052 } catch (RemoteException e) { 3053 throw new RuntimeException(e); 3054 } 3055 3056 // handle the change 3057 return ensureTouchModeLocally(inTouchMode); 3058 } 3059 3060 /** 3061 * Ensure that the touch mode for this window is set, and if it is changing, 3062 * take the appropriate action. 3063 * @param inTouchMode Whether we want to be in touch mode. 3064 * @return True if the touch mode changed and focus changed was changed as a result 3065 */ 3066 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3067 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3068 + "touch mode is " + mAttachInfo.mInTouchMode); 3069 3070 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3071 3072 mAttachInfo.mInTouchMode = inTouchMode; 3073 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3074 3075 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3076 } 3077 3078 private boolean enterTouchMode() { 3079 if (mView != null) { 3080 if (mView.hasFocus()) { 3081 // note: not relying on mFocusedView here because this could 3082 // be when the window is first being added, and mFocused isn't 3083 // set yet. 3084 final View focused = mView.findFocus(); 3085 if (focused != null && !focused.isFocusableInTouchMode()) { 3086 3087 final ViewGroup ancestorToTakeFocus = 3088 findAncestorToTakeFocusInTouchMode(focused); 3089 if (ancestorToTakeFocus != null) { 3090 // there is an ancestor that wants focus after its descendants that 3091 // is focusable in touch mode.. give it focus 3092 return ancestorToTakeFocus.requestFocus(); 3093 } else { 3094 // nothing appropriate to have focus in touch mode, clear it out 3095 mView.unFocus(); 3096 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3097 mFocusedView = null; 3098 mOldFocusedView = null; 3099 return true; 3100 } 3101 } 3102 } 3103 } 3104 return false; 3105 } 3106 3107 /** 3108 * Find an ancestor of focused that wants focus after its descendants and is 3109 * focusable in touch mode. 3110 * @param focused The currently focused view. 3111 * @return An appropriate view, or null if no such view exists. 3112 */ 3113 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3114 ViewParent parent = focused.getParent(); 3115 while (parent instanceof ViewGroup) { 3116 final ViewGroup vgParent = (ViewGroup) parent; 3117 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3118 && vgParent.isFocusableInTouchMode()) { 3119 return vgParent; 3120 } 3121 if (vgParent.isRootNamespace()) { 3122 return null; 3123 } else { 3124 parent = vgParent.getParent(); 3125 } 3126 } 3127 return null; 3128 } 3129 3130 private boolean leaveTouchMode() { 3131 if (mView != null) { 3132 if (mView.hasFocus()) { 3133 // i learned the hard way to not trust mFocusedView :) 3134 mFocusedView = mView.findFocus(); 3135 if (!(mFocusedView instanceof ViewGroup)) { 3136 // some view has focus, let it keep it 3137 return false; 3138 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3139 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3140 // some view group has focus, and doesn't prefer its children 3141 // over itself for focus, so let them keep it. 3142 return false; 3143 } 3144 } 3145 3146 // find the best view to give focus to in this brave new non-touch-mode 3147 // world 3148 final View focused = focusSearch(null, View.FOCUS_DOWN); 3149 if (focused != null) { 3150 return focused.requestFocus(View.FOCUS_DOWN); 3151 } 3152 } 3153 return false; 3154 } 3155 3156 private void deliverInputEvent(QueuedInputEvent q) { 3157 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3158 try { 3159 if (q.mEvent instanceof KeyEvent) { 3160 deliverKeyEvent(q); 3161 } else { 3162 final int source = q.mEvent.getSource(); 3163 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3164 deliverPointerEvent(q); 3165 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3166 deliverTrackballEvent(q); 3167 } else { 3168 deliverGenericMotionEvent(q); 3169 } 3170 } 3171 } finally { 3172 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3173 } 3174 } 3175 3176 private void deliverPointerEvent(QueuedInputEvent q) { 3177 final MotionEvent event = (MotionEvent)q.mEvent; 3178 final boolean isTouchEvent = event.isTouchEvent(); 3179 if (mInputEventConsistencyVerifier != null) { 3180 if (isTouchEvent) { 3181 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3182 } else { 3183 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3184 } 3185 } 3186 3187 // If there is no view, then the event will not be handled. 3188 if (mView == null || !mAdded) { 3189 finishInputEvent(q, false); 3190 return; 3191 } 3192 3193 // Translate the pointer event for compatibility, if needed. 3194 if (mTranslator != null) { 3195 mTranslator.translateEventInScreenToAppWindow(event); 3196 } 3197 3198 // Enter touch mode on down or scroll. 3199 final int action = event.getAction(); 3200 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3201 ensureTouchMode(true); 3202 } 3203 3204 // Offset the scroll position. 3205 if (mCurScrollY != 0) { 3206 event.offsetLocation(0, mCurScrollY); 3207 } 3208 if (MEASURE_LATENCY) { 3209 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3210 } 3211 3212 // Remember the touch position for possible drag-initiation. 3213 if (isTouchEvent) { 3214 mLastTouchPoint.x = event.getRawX(); 3215 mLastTouchPoint.y = event.getRawY(); 3216 } 3217 3218 // Dispatch touch to view hierarchy. 3219 boolean handled = mView.dispatchPointerEvent(event); 3220 if (MEASURE_LATENCY) { 3221 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3222 } 3223 if (handled) { 3224 finishInputEvent(q, true); 3225 return; 3226 } 3227 3228 // Pointer event was unhandled. 3229 finishInputEvent(q, false); 3230 } 3231 3232 private void deliverTrackballEvent(QueuedInputEvent q) { 3233 final MotionEvent event = (MotionEvent)q.mEvent; 3234 if (mInputEventConsistencyVerifier != null) { 3235 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3236 } 3237 3238 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3239 if (LOCAL_LOGV) 3240 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3241 3242 // Dispatch to the IME before propagating down the view hierarchy. 3243 // The IME will eventually call back into handleImeFinishedEvent. 3244 if (mLastWasImTarget) { 3245 InputMethodManager imm = InputMethodManager.peekInstance(); 3246 if (imm != null) { 3247 final int seq = event.getSequenceNumber(); 3248 if (DEBUG_IMF) 3249 Log.v(TAG, "Sending trackball event to IME: seq=" 3250 + seq + " event=" + event); 3251 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3252 mInputMethodCallback); 3253 return; 3254 } 3255 } 3256 } 3257 3258 // Not dispatching to IME, continue with post IME actions. 3259 deliverTrackballEventPostIme(q); 3260 } 3261 3262 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3263 final MotionEvent event = (MotionEvent) q.mEvent; 3264 3265 // If there is no view, then the event will not be handled. 3266 if (mView == null || !mAdded) { 3267 finishInputEvent(q, false); 3268 return; 3269 } 3270 3271 // Deliver the trackball event to the view. 3272 if (mView.dispatchTrackballEvent(event)) { 3273 // If we reach this, we delivered a trackball event to mView and 3274 // mView consumed it. Because we will not translate the trackball 3275 // event into a key event, touch mode will not exit, so we exit 3276 // touch mode here. 3277 ensureTouchMode(false); 3278 3279 finishInputEvent(q, true); 3280 mLastTrackballTime = Integer.MIN_VALUE; 3281 return; 3282 } 3283 3284 // Translate the trackball event into DPAD keys and try to deliver those. 3285 final TrackballAxis x = mTrackballAxisX; 3286 final TrackballAxis y = mTrackballAxisY; 3287 3288 long curTime = SystemClock.uptimeMillis(); 3289 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3290 // It has been too long since the last movement, 3291 // so restart at the beginning. 3292 x.reset(0); 3293 y.reset(0); 3294 mLastTrackballTime = curTime; 3295 } 3296 3297 final int action = event.getAction(); 3298 final int metaState = event.getMetaState(); 3299 switch (action) { 3300 case MotionEvent.ACTION_DOWN: 3301 x.reset(2); 3302 y.reset(2); 3303 enqueueInputEvent(new KeyEvent(curTime, curTime, 3304 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3305 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3306 InputDevice.SOURCE_KEYBOARD)); 3307 break; 3308 case MotionEvent.ACTION_UP: 3309 x.reset(2); 3310 y.reset(2); 3311 enqueueInputEvent(new KeyEvent(curTime, curTime, 3312 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3313 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3314 InputDevice.SOURCE_KEYBOARD)); 3315 break; 3316 } 3317 3318 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3319 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3320 + " move=" + event.getX() 3321 + " / Y=" + y.position + " step=" 3322 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3323 + " move=" + event.getY()); 3324 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3325 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3326 3327 // Generate DPAD events based on the trackball movement. 3328 // We pick the axis that has moved the most as the direction of 3329 // the DPAD. When we generate DPAD events for one axis, then the 3330 // other axis is reset -- we don't want to perform DPAD jumps due 3331 // to slight movements in the trackball when making major movements 3332 // along the other axis. 3333 int keycode = 0; 3334 int movement = 0; 3335 float accel = 1; 3336 if (xOff > yOff) { 3337 movement = x.generate((2/event.getXPrecision())); 3338 if (movement != 0) { 3339 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3340 : KeyEvent.KEYCODE_DPAD_LEFT; 3341 accel = x.acceleration; 3342 y.reset(2); 3343 } 3344 } else if (yOff > 0) { 3345 movement = y.generate((2/event.getYPrecision())); 3346 if (movement != 0) { 3347 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3348 : KeyEvent.KEYCODE_DPAD_UP; 3349 accel = y.acceleration; 3350 x.reset(2); 3351 } 3352 } 3353 3354 if (keycode != 0) { 3355 if (movement < 0) movement = -movement; 3356 int accelMovement = (int)(movement * accel); 3357 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3358 + " accelMovement=" + accelMovement 3359 + " accel=" + accel); 3360 if (accelMovement > movement) { 3361 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3362 + keycode); 3363 movement--; 3364 int repeatCount = accelMovement - movement; 3365 enqueueInputEvent(new KeyEvent(curTime, curTime, 3366 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3367 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3368 InputDevice.SOURCE_KEYBOARD)); 3369 } 3370 while (movement > 0) { 3371 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3372 + keycode); 3373 movement--; 3374 curTime = SystemClock.uptimeMillis(); 3375 enqueueInputEvent(new KeyEvent(curTime, curTime, 3376 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3377 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3378 InputDevice.SOURCE_KEYBOARD)); 3379 enqueueInputEvent(new KeyEvent(curTime, curTime, 3380 KeyEvent.ACTION_UP, keycode, 0, metaState, 3381 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3382 InputDevice.SOURCE_KEYBOARD)); 3383 } 3384 mLastTrackballTime = curTime; 3385 } 3386 3387 // Unfortunately we can't tell whether the application consumed the keys, so 3388 // we always consider the trackball event handled. 3389 finishInputEvent(q, true); 3390 } 3391 3392 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3393 final MotionEvent event = (MotionEvent)q.mEvent; 3394 if (mInputEventConsistencyVerifier != null) { 3395 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3396 } 3397 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3398 if (LOCAL_LOGV) 3399 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3400 3401 // Dispatch to the IME before propagating down the view hierarchy. 3402 // The IME will eventually call back into handleImeFinishedEvent. 3403 if (mLastWasImTarget) { 3404 InputMethodManager imm = InputMethodManager.peekInstance(); 3405 if (imm != null) { 3406 final int seq = event.getSequenceNumber(); 3407 if (DEBUG_IMF) 3408 Log.v(TAG, "Sending generic motion event to IME: seq=" 3409 + seq + " event=" + event); 3410 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3411 mInputMethodCallback); 3412 return; 3413 } 3414 } 3415 } 3416 3417 // Not dispatching to IME, continue with post IME actions. 3418 deliverGenericMotionEventPostIme(q); 3419 } 3420 3421 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3422 final MotionEvent event = (MotionEvent) q.mEvent; 3423 final int source = event.getSource(); 3424 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3425 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3426 3427 // If there is no view, then the event will not be handled. 3428 if (mView == null || !mAdded) { 3429 if (isJoystick) { 3430 updateJoystickDirection(event, false); 3431 } else if (isTouchPad) { 3432 //Convert TouchPad motion into a TrackBall event 3433 mSimulatedTrackball.updateTrackballDirection(this, event); 3434 } 3435 finishInputEvent(q, false); 3436 return; 3437 } 3438 3439 // Deliver the event to the view. 3440 if (mView.dispatchGenericMotionEvent(event)) { 3441 if (isJoystick) { 3442 updateJoystickDirection(event, false); 3443 } else if (isTouchPad) { 3444 //Convert TouchPad motion into a TrackBall event 3445 mSimulatedTrackball.updateTrackballDirection(this, event); 3446 } 3447 finishInputEvent(q, true); 3448 return; 3449 } 3450 3451 if (isJoystick) { 3452 // Translate the joystick event into DPAD keys and try to deliver 3453 // those. 3454 updateJoystickDirection(event, true); 3455 finishInputEvent(q, true); 3456 } else if (isTouchPad) { 3457 //Convert TouchPad motion into a TrackBall event 3458 mSimulatedTrackball.updateTrackballDirection(this, event); 3459 finishInputEvent(q, true); 3460 } else { 3461 finishInputEvent(q, false); 3462 } 3463 } 3464 3465 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3466 final long time = event.getEventTime(); 3467 final int metaState = event.getMetaState(); 3468 final int deviceId = event.getDeviceId(); 3469 final int source = event.getSource(); 3470 3471 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3472 if (xDirection == 0) { 3473 xDirection = joystickAxisValueToDirection(event.getX()); 3474 } 3475 3476 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3477 if (yDirection == 0) { 3478 yDirection = joystickAxisValueToDirection(event.getY()); 3479 } 3480 3481 if (xDirection != mLastJoystickXDirection) { 3482 if (mLastJoystickXKeyCode != 0) { 3483 enqueueInputEvent(new KeyEvent(time, time, 3484 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3485 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3486 mLastJoystickXKeyCode = 0; 3487 } 3488 3489 mLastJoystickXDirection = xDirection; 3490 3491 if (xDirection != 0 && synthesizeNewKeys) { 3492 mLastJoystickXKeyCode = xDirection > 0 3493 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3494 enqueueInputEvent(new KeyEvent(time, time, 3495 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3496 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3497 } 3498 } 3499 3500 if (yDirection != mLastJoystickYDirection) { 3501 if (mLastJoystickYKeyCode != 0) { 3502 enqueueInputEvent(new KeyEvent(time, time, 3503 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3504 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3505 mLastJoystickYKeyCode = 0; 3506 } 3507 3508 mLastJoystickYDirection = yDirection; 3509 3510 if (yDirection != 0 && synthesizeNewKeys) { 3511 mLastJoystickYKeyCode = yDirection > 0 3512 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3513 enqueueInputEvent(new KeyEvent(time, time, 3514 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3515 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3516 } 3517 } 3518 } 3519 3520 private static int joystickAxisValueToDirection(float value) { 3521 if (value >= 0.5f) { 3522 return 1; 3523 } else if (value <= -0.5f) { 3524 return -1; 3525 } else { 3526 return 0; 3527 } 3528 } 3529 3530 /** 3531 * Returns true if the key is used for keyboard navigation. 3532 * @param keyEvent The key event. 3533 * @return True if the key is used for keyboard navigation. 3534 */ 3535 private static boolean isNavigationKey(KeyEvent keyEvent) { 3536 switch (keyEvent.getKeyCode()) { 3537 case KeyEvent.KEYCODE_DPAD_LEFT: 3538 case KeyEvent.KEYCODE_DPAD_RIGHT: 3539 case KeyEvent.KEYCODE_DPAD_UP: 3540 case KeyEvent.KEYCODE_DPAD_DOWN: 3541 case KeyEvent.KEYCODE_DPAD_CENTER: 3542 case KeyEvent.KEYCODE_PAGE_UP: 3543 case KeyEvent.KEYCODE_PAGE_DOWN: 3544 case KeyEvent.KEYCODE_MOVE_HOME: 3545 case KeyEvent.KEYCODE_MOVE_END: 3546 case KeyEvent.KEYCODE_TAB: 3547 case KeyEvent.KEYCODE_SPACE: 3548 case KeyEvent.KEYCODE_ENTER: 3549 return true; 3550 } 3551 return false; 3552 } 3553 3554 /** 3555 * Returns true if the key is used for typing. 3556 * @param keyEvent The key event. 3557 * @return True if the key is used for typing. 3558 */ 3559 private static boolean isTypingKey(KeyEvent keyEvent) { 3560 return keyEvent.getUnicodeChar() > 0; 3561 } 3562 3563 /** 3564 * See if the key event means we should leave touch mode (and leave touch mode if so). 3565 * @param event The key event. 3566 * @return Whether this key event should be consumed (meaning the act of 3567 * leaving touch mode alone is considered the event). 3568 */ 3569 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3570 // Only relevant in touch mode. 3571 if (!mAttachInfo.mInTouchMode) { 3572 return false; 3573 } 3574 3575 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3576 final int action = event.getAction(); 3577 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3578 return false; 3579 } 3580 3581 // Don't leave touch mode if the IME told us not to. 3582 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3583 return false; 3584 } 3585 3586 // If the key can be used for keyboard navigation then leave touch mode 3587 // and select a focused view if needed (in ensureTouchMode). 3588 // When a new focused view is selected, we consume the navigation key because 3589 // navigation doesn't make much sense unless a view already has focus so 3590 // the key's purpose is to set focus. 3591 if (isNavigationKey(event)) { 3592 return ensureTouchMode(false); 3593 } 3594 3595 // If the key can be used for typing then leave touch mode 3596 // and select a focused view if needed (in ensureTouchMode). 3597 // Always allow the view to process the typing key. 3598 if (isTypingKey(event)) { 3599 ensureTouchMode(false); 3600 return false; 3601 } 3602 3603 return false; 3604 } 3605 3606 private void deliverKeyEvent(QueuedInputEvent q) { 3607 final KeyEvent event = (KeyEvent)q.mEvent; 3608 if (mInputEventConsistencyVerifier != null) { 3609 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3610 } 3611 3612 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3613 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3614 3615 // Perform predispatching before the IME. 3616 if (mView.dispatchKeyEventPreIme(event)) { 3617 finishInputEvent(q, true); 3618 return; 3619 } 3620 3621 // Dispatch to the IME before propagating down the view hierarchy. 3622 // The IME will eventually call back into handleImeFinishedEvent. 3623 if (mLastWasImTarget) { 3624 InputMethodManager imm = InputMethodManager.peekInstance(); 3625 if (imm != null) { 3626 final int seq = event.getSequenceNumber(); 3627 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3628 + seq + " event=" + event); 3629 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3630 return; 3631 } 3632 } 3633 } 3634 3635 // Not dispatching to IME, continue with post IME actions. 3636 deliverKeyEventPostIme(q); 3637 } 3638 3639 void handleImeFinishedEvent(int seq, boolean handled) { 3640 final QueuedInputEvent q = mCurrentInputEvent; 3641 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3642 if (DEBUG_IMF) { 3643 Log.v(TAG, "IME finished event: seq=" + seq 3644 + " handled=" + handled + " event=" + q); 3645 } 3646 if (handled) { 3647 finishInputEvent(q, true); 3648 } else { 3649 if (q.mEvent instanceof KeyEvent) { 3650 KeyEvent event = (KeyEvent)q.mEvent; 3651 if (event.getAction() != KeyEvent.ACTION_UP) { 3652 // If the window doesn't currently have input focus, then drop 3653 // this event. This could be an event that came back from the 3654 // IME dispatch but the window has lost focus in the meantime. 3655 if (!mAttachInfo.mHasWindowFocus) { 3656 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3657 finishInputEvent(q, true); 3658 return; 3659 } 3660 } 3661 deliverKeyEventPostIme(q); 3662 } else { 3663 MotionEvent event = (MotionEvent)q.mEvent; 3664 if (event.getAction() != MotionEvent.ACTION_CANCEL 3665 && event.getAction() != MotionEvent.ACTION_UP) { 3666 // If the window doesn't currently have input focus, then drop 3667 // this event. This could be an event that came back from the 3668 // IME dispatch but the window has lost focus in the meantime. 3669 if (!mAttachInfo.mHasWindowFocus) { 3670 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3671 finishInputEvent(q, true); 3672 return; 3673 } 3674 } 3675 final int source = q.mEvent.getSource(); 3676 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3677 deliverTrackballEventPostIme(q); 3678 } else { 3679 deliverGenericMotionEventPostIme(q); 3680 } 3681 } 3682 } 3683 } else { 3684 if (DEBUG_IMF) { 3685 Log.v(TAG, "IME finished event: seq=" + seq 3686 + " handled=" + handled + ", event not found!"); 3687 } 3688 } 3689 } 3690 3691 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3692 final KeyEvent event = (KeyEvent)q.mEvent; 3693 3694 // If the view went away, then the event will not be handled. 3695 if (mView == null || !mAdded) { 3696 finishInputEvent(q, false); 3697 return; 3698 } 3699 3700 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3701 if (checkForLeavingTouchModeAndConsume(event)) { 3702 finishInputEvent(q, true); 3703 return; 3704 } 3705 3706 // Make sure the fallback event policy sees all keys that will be delivered to the 3707 // view hierarchy. 3708 mFallbackEventHandler.preDispatchKeyEvent(event); 3709 3710 // Deliver the key to the view hierarchy. 3711 if (mView.dispatchKeyEvent(event)) { 3712 finishInputEvent(q, true); 3713 return; 3714 } 3715 3716 // If the Control modifier is held, try to interpret the key as a shortcut. 3717 if (event.getAction() == KeyEvent.ACTION_DOWN 3718 && event.isCtrlPressed() 3719 && event.getRepeatCount() == 0 3720 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3721 if (mView.dispatchKeyShortcutEvent(event)) { 3722 finishInputEvent(q, true); 3723 return; 3724 } 3725 } 3726 3727 // Apply the fallback event policy. 3728 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3729 finishInputEvent(q, true); 3730 return; 3731 } 3732 3733 // Handle automatic focus changes. 3734 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3735 int direction = 0; 3736 switch (event.getKeyCode()) { 3737 case KeyEvent.KEYCODE_DPAD_LEFT: 3738 if (event.hasNoModifiers()) { 3739 direction = View.FOCUS_LEFT; 3740 } 3741 break; 3742 case KeyEvent.KEYCODE_DPAD_RIGHT: 3743 if (event.hasNoModifiers()) { 3744 direction = View.FOCUS_RIGHT; 3745 } 3746 break; 3747 case KeyEvent.KEYCODE_DPAD_UP: 3748 if (event.hasNoModifiers()) { 3749 direction = View.FOCUS_UP; 3750 } 3751 break; 3752 case KeyEvent.KEYCODE_DPAD_DOWN: 3753 if (event.hasNoModifiers()) { 3754 direction = View.FOCUS_DOWN; 3755 } 3756 break; 3757 case KeyEvent.KEYCODE_TAB: 3758 if (event.hasNoModifiers()) { 3759 direction = View.FOCUS_FORWARD; 3760 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3761 direction = View.FOCUS_BACKWARD; 3762 } 3763 break; 3764 } 3765 if (direction != 0) { 3766 View focused = mView.findFocus(); 3767 if (focused != null) { 3768 View v = focused.focusSearch(direction); 3769 if (v != null && v != focused) { 3770 // do the math the get the interesting rect 3771 // of previous focused into the coord system of 3772 // newly focused view 3773 focused.getFocusedRect(mTempRect); 3774 if (mView instanceof ViewGroup) { 3775 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3776 focused, mTempRect); 3777 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3778 v, mTempRect); 3779 } 3780 if (v.requestFocus(direction, mTempRect)) { 3781 playSoundEffect(SoundEffectConstants 3782 .getContantForFocusDirection(direction)); 3783 finishInputEvent(q, true); 3784 return; 3785 } 3786 } 3787 3788 // Give the focused view a last chance to handle the dpad key. 3789 if (mView.dispatchUnhandledMove(focused, direction)) { 3790 finishInputEvent(q, true); 3791 return; 3792 } 3793 } 3794 } 3795 } 3796 3797 // Key was unhandled. 3798 finishInputEvent(q, false); 3799 } 3800 3801 /* drag/drop */ 3802 void setLocalDragState(Object obj) { 3803 mLocalDragState = obj; 3804 } 3805 3806 private void handleDragEvent(DragEvent event) { 3807 // From the root, only drag start/end/location are dispatched. entered/exited 3808 // are determined and dispatched by the viewgroup hierarchy, who then report 3809 // that back here for ultimate reporting back to the framework. 3810 if (mView != null && mAdded) { 3811 final int what = event.mAction; 3812 3813 if (what == DragEvent.ACTION_DRAG_EXITED) { 3814 // A direct EXITED event means that the window manager knows we've just crossed 3815 // a window boundary, so the current drag target within this one must have 3816 // just been exited. Send it the usual notifications and then we're done 3817 // for now. 3818 mView.dispatchDragEvent(event); 3819 } else { 3820 // Cache the drag description when the operation starts, then fill it in 3821 // on subsequent calls as a convenience 3822 if (what == DragEvent.ACTION_DRAG_STARTED) { 3823 mCurrentDragView = null; // Start the current-recipient tracking 3824 mDragDescription = event.mClipDescription; 3825 } else { 3826 event.mClipDescription = mDragDescription; 3827 } 3828 3829 // For events with a [screen] location, translate into window coordinates 3830 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3831 mDragPoint.set(event.mX, event.mY); 3832 if (mTranslator != null) { 3833 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3834 } 3835 3836 if (mCurScrollY != 0) { 3837 mDragPoint.offset(0, mCurScrollY); 3838 } 3839 3840 event.mX = mDragPoint.x; 3841 event.mY = mDragPoint.y; 3842 } 3843 3844 // Remember who the current drag target is pre-dispatch 3845 final View prevDragView = mCurrentDragView; 3846 3847 // Now dispatch the drag/drop event 3848 boolean result = mView.dispatchDragEvent(event); 3849 3850 // If we changed apparent drag target, tell the OS about it 3851 if (prevDragView != mCurrentDragView) { 3852 try { 3853 if (prevDragView != null) { 3854 mWindowSession.dragRecipientExited(mWindow); 3855 } 3856 if (mCurrentDragView != null) { 3857 mWindowSession.dragRecipientEntered(mWindow); 3858 } 3859 } catch (RemoteException e) { 3860 Slog.e(TAG, "Unable to note drag target change"); 3861 } 3862 } 3863 3864 // Report the drop result when we're done 3865 if (what == DragEvent.ACTION_DROP) { 3866 mDragDescription = null; 3867 try { 3868 Log.i(TAG, "Reporting drop result: " + result); 3869 mWindowSession.reportDropResult(mWindow, result); 3870 } catch (RemoteException e) { 3871 Log.e(TAG, "Unable to report drop result"); 3872 } 3873 } 3874 3875 // When the drag operation ends, release any local state object 3876 // that may have been in use 3877 if (what == DragEvent.ACTION_DRAG_ENDED) { 3878 setLocalDragState(null); 3879 } 3880 } 3881 } 3882 event.recycle(); 3883 } 3884 3885 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3886 if (mSeq != args.seq) { 3887 // The sequence has changed, so we need to update our value and make 3888 // sure to do a traversal afterward so the window manager is given our 3889 // most recent data. 3890 mSeq = args.seq; 3891 mAttachInfo.mForceReportNewAttributes = true; 3892 scheduleTraversals(); 3893 } 3894 if (mView == null) return; 3895 if (args.localChanges != 0) { 3896 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3897 } 3898 if (mAttachInfo != null) { 3899 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3900 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3901 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3902 mView.dispatchSystemUiVisibilityChanged(visibility); 3903 } 3904 } 3905 } 3906 3907 public void handleDispatchDoneAnimating() { 3908 if (mWindowsAnimating) { 3909 mWindowsAnimating = false; 3910 if (!mDirty.isEmpty() || mIsAnimating) { 3911 scheduleTraversals(); 3912 } 3913 } 3914 } 3915 3916 public void getLastTouchPoint(Point outLocation) { 3917 outLocation.x = (int) mLastTouchPoint.x; 3918 outLocation.y = (int) mLastTouchPoint.y; 3919 } 3920 3921 public void setDragFocus(View newDragTarget) { 3922 if (mCurrentDragView != newDragTarget) { 3923 mCurrentDragView = newDragTarget; 3924 } 3925 } 3926 3927 private AudioManager getAudioManager() { 3928 if (mView == null) { 3929 throw new IllegalStateException("getAudioManager called when there is no mView"); 3930 } 3931 if (mAudioManager == null) { 3932 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3933 } 3934 return mAudioManager; 3935 } 3936 3937 public AccessibilityInteractionController getAccessibilityInteractionController() { 3938 if (mView == null) { 3939 throw new IllegalStateException("getAccessibilityInteractionController" 3940 + " called when there is no mView"); 3941 } 3942 if (mAccessibilityInteractionController == null) { 3943 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3944 } 3945 return mAccessibilityInteractionController; 3946 } 3947 3948 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3949 boolean insetsPending) throws RemoteException { 3950 3951 float appScale = mAttachInfo.mApplicationScale; 3952 boolean restore = false; 3953 if (params != null && mTranslator != null) { 3954 restore = true; 3955 params.backup(); 3956 mTranslator.translateWindowLayout(params); 3957 } 3958 if (params != null) { 3959 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3960 } 3961 mPendingConfiguration.seq = 0; 3962 //Log.d(TAG, ">>>>>> CALLING relayout"); 3963 if (params != null && mOrigWindowType != params.type) { 3964 // For compatibility with old apps, don't crash here. 3965 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3966 Slog.w(TAG, "Window type can not be changed after " 3967 + "the window is added; ignoring change of " + mView); 3968 params.type = mOrigWindowType; 3969 } 3970 } 3971 int relayoutResult = mWindowSession.relayout( 3972 mWindow, mSeq, params, 3973 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3974 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3975 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 3976 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3977 mPendingConfiguration, mSurface); 3978 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3979 if (restore) { 3980 params.restore(); 3981 } 3982 3983 if (mTranslator != null) { 3984 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3985 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3986 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3987 } 3988 return relayoutResult; 3989 } 3990 3991 /** 3992 * {@inheritDoc} 3993 */ 3994 public void playSoundEffect(int effectId) { 3995 checkThread(); 3996 3997 try { 3998 final AudioManager audioManager = getAudioManager(); 3999 4000 switch (effectId) { 4001 case SoundEffectConstants.CLICK: 4002 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4003 return; 4004 case SoundEffectConstants.NAVIGATION_DOWN: 4005 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4006 return; 4007 case SoundEffectConstants.NAVIGATION_LEFT: 4008 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4009 return; 4010 case SoundEffectConstants.NAVIGATION_RIGHT: 4011 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4012 return; 4013 case SoundEffectConstants.NAVIGATION_UP: 4014 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4015 return; 4016 default: 4017 throw new IllegalArgumentException("unknown effect id " + effectId + 4018 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4019 } 4020 } catch (IllegalStateException e) { 4021 // Exception thrown by getAudioManager() when mView is null 4022 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4023 e.printStackTrace(); 4024 } 4025 } 4026 4027 /** 4028 * {@inheritDoc} 4029 */ 4030 public boolean performHapticFeedback(int effectId, boolean always) { 4031 try { 4032 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4033 } catch (RemoteException e) { 4034 return false; 4035 } 4036 } 4037 4038 /** 4039 * {@inheritDoc} 4040 */ 4041 public View focusSearch(View focused, int direction) { 4042 checkThread(); 4043 if (!(mView instanceof ViewGroup)) { 4044 return null; 4045 } 4046 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4047 } 4048 4049 public void debug() { 4050 mView.debug(); 4051 } 4052 4053 public void dumpGfxInfo(int[] info) { 4054 info[0] = info[1] = 0; 4055 if (mView != null) { 4056 getGfxInfo(mView, info); 4057 } 4058 } 4059 4060 private static void getGfxInfo(View view, int[] info) { 4061 DisplayList displayList = view.mDisplayList; 4062 info[0]++; 4063 if (displayList != null) { 4064 info[1] += displayList.getSize(); 4065 } 4066 4067 if (view instanceof ViewGroup) { 4068 ViewGroup group = (ViewGroup) view; 4069 4070 int count = group.getChildCount(); 4071 for (int i = 0; i < count; i++) { 4072 getGfxInfo(group.getChildAt(i), info); 4073 } 4074 } 4075 } 4076 4077 public void die(boolean immediate) { 4078 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4079 // done by dispatchDetachedFromWindow will cause havoc on return. 4080 if (immediate && !mIsInTraversal) { 4081 doDie(); 4082 } else { 4083 if (!mIsDrawing) { 4084 destroyHardwareRenderer(); 4085 } else { 4086 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4087 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4088 } 4089 mHandler.sendEmptyMessage(MSG_DIE); 4090 } 4091 } 4092 4093 void doDie() { 4094 checkThread(); 4095 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4096 synchronized (this) { 4097 if (mAdded) { 4098 dispatchDetachedFromWindow(); 4099 } 4100 4101 if (mAdded && !mFirst) { 4102 destroyHardwareRenderer(); 4103 4104 if (mView != null) { 4105 int viewVisibility = mView.getVisibility(); 4106 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4107 if (mWindowAttributesChanged || viewVisibilityChanged) { 4108 // If layout params have been changed, first give them 4109 // to the window manager to make sure it has the correct 4110 // animation info. 4111 try { 4112 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4113 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4114 mWindowSession.finishDrawing(mWindow); 4115 } 4116 } catch (RemoteException e) { 4117 } 4118 } 4119 4120 mSurface.release(); 4121 } 4122 } 4123 4124 mAdded = false; 4125 } 4126 } 4127 4128 public void requestUpdateConfiguration(Configuration config) { 4129 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4130 mHandler.sendMessage(msg); 4131 } 4132 4133 public void loadSystemProperties() { 4134 boolean layout = SystemProperties.getBoolean( 4135 View.DEBUG_LAYOUT_PROPERTY, false); 4136 if (layout != mAttachInfo.mDebugLayout) { 4137 mAttachInfo.mDebugLayout = layout; 4138 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4139 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4140 } 4141 } 4142 } 4143 4144 private void destroyHardwareRenderer() { 4145 AttachInfo attachInfo = mAttachInfo; 4146 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4147 4148 if (hardwareRenderer != null) { 4149 if (mView != null) { 4150 hardwareRenderer.destroyHardwareResources(mView); 4151 } 4152 hardwareRenderer.destroy(true); 4153 hardwareRenderer.setRequested(false); 4154 4155 attachInfo.mHardwareRenderer = null; 4156 attachInfo.mHardwareAccelerated = false; 4157 } 4158 } 4159 4160 void dispatchImeFinishedEvent(int seq, boolean handled) { 4161 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4162 msg.arg1 = seq; 4163 msg.arg2 = handled ? 1 : 0; 4164 msg.setAsynchronous(true); 4165 mHandler.sendMessage(msg); 4166 } 4167 4168 public void dispatchFinishInputConnection(InputConnection connection) { 4169 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4170 mHandler.sendMessage(msg); 4171 } 4172 4173 public void dispatchResized(Rect frame, Rect contentInsets, 4174 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4175 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4176 + " contentInsets=" + contentInsets.toShortString() 4177 + " visibleInsets=" + visibleInsets.toShortString() 4178 + " reportDraw=" + reportDraw); 4179 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4180 if (mTranslator != null) { 4181 mTranslator.translateRectInScreenToAppWindow(frame); 4182 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4183 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4184 } 4185 SomeArgs args = SomeArgs.obtain(); 4186 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4187 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4188 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4189 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4190 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4191 msg.obj = args; 4192 mHandler.sendMessage(msg); 4193 } 4194 4195 public void dispatchMoved(int newX, int newY) { 4196 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4197 if (mTranslator != null) { 4198 PointF point = new PointF(newX, newY); 4199 mTranslator.translatePointInScreenToAppWindow(point); 4200 newX = (int) (point.x + 0.5); 4201 newY = (int) (point.y + 0.5); 4202 } 4203 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4204 mHandler.sendMessage(msg); 4205 } 4206 4207 /** 4208 * Represents a pending input event that is waiting in a queue. 4209 * 4210 * Input events are processed in serial order by the timestamp specified by 4211 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4212 * one input event to the application at a time and waits for the application 4213 * to finish handling it before delivering the next one. 4214 * 4215 * However, because the application or IME can synthesize and inject multiple 4216 * key events at a time without going through the input dispatcher, we end up 4217 * needing a queue on the application's side. 4218 */ 4219 private static final class QueuedInputEvent { 4220 public static final int FLAG_DELIVER_POST_IME = 1; 4221 4222 public QueuedInputEvent mNext; 4223 4224 public InputEvent mEvent; 4225 public InputEventReceiver mReceiver; 4226 public int mFlags; 4227 } 4228 4229 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4230 InputEventReceiver receiver, int flags) { 4231 QueuedInputEvent q = mQueuedInputEventPool; 4232 if (q != null) { 4233 mQueuedInputEventPoolSize -= 1; 4234 mQueuedInputEventPool = q.mNext; 4235 q.mNext = null; 4236 } else { 4237 q = new QueuedInputEvent(); 4238 } 4239 4240 q.mEvent = event; 4241 q.mReceiver = receiver; 4242 q.mFlags = flags; 4243 return q; 4244 } 4245 4246 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4247 q.mEvent = null; 4248 q.mReceiver = null; 4249 4250 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4251 mQueuedInputEventPoolSize += 1; 4252 q.mNext = mQueuedInputEventPool; 4253 mQueuedInputEventPool = q; 4254 } 4255 } 4256 4257 void enqueueInputEvent(InputEvent event) { 4258 enqueueInputEvent(event, null, 0, false); 4259 } 4260 4261 void enqueueInputEvent(InputEvent event, 4262 InputEventReceiver receiver, int flags, boolean processImmediately) { 4263 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4264 4265 // Always enqueue the input event in order, regardless of its time stamp. 4266 // We do this because the application or the IME may inject key events 4267 // in response to touch events and we want to ensure that the injected keys 4268 // are processed in the order they were received and we cannot trust that 4269 // the time stamp of injected events are monotonic. 4270 QueuedInputEvent last = mFirstPendingInputEvent; 4271 if (last == null) { 4272 mFirstPendingInputEvent = q; 4273 } else { 4274 while (last.mNext != null) { 4275 last = last.mNext; 4276 } 4277 last.mNext = q; 4278 } 4279 4280 if (processImmediately) { 4281 doProcessInputEvents(); 4282 } else { 4283 scheduleProcessInputEvents(); 4284 } 4285 } 4286 4287 private void scheduleProcessInputEvents() { 4288 if (!mProcessInputEventsScheduled) { 4289 mProcessInputEventsScheduled = true; 4290 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4291 msg.setAsynchronous(true); 4292 mHandler.sendMessage(msg); 4293 } 4294 } 4295 4296 void doProcessInputEvents() { 4297 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4298 QueuedInputEvent q = mFirstPendingInputEvent; 4299 mFirstPendingInputEvent = q.mNext; 4300 q.mNext = null; 4301 mCurrentInputEvent = q; 4302 deliverInputEvent(q); 4303 } 4304 4305 // We are done processing all input events that we can process right now 4306 // so we can clear the pending flag immediately. 4307 if (mProcessInputEventsScheduled) { 4308 mProcessInputEventsScheduled = false; 4309 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4310 } 4311 } 4312 4313 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4314 if (q != mCurrentInputEvent) { 4315 throw new IllegalStateException("finished input event out of order"); 4316 } 4317 4318 if (q.mReceiver != null) { 4319 q.mReceiver.finishInputEvent(q.mEvent, handled); 4320 } else { 4321 q.mEvent.recycleIfNeededAfterDispatch(); 4322 } 4323 4324 recycleQueuedInputEvent(q); 4325 4326 mCurrentInputEvent = null; 4327 if (mFirstPendingInputEvent != null) { 4328 scheduleProcessInputEvents(); 4329 } 4330 } 4331 4332 void scheduleConsumeBatchedInput() { 4333 if (!mConsumeBatchedInputScheduled) { 4334 mConsumeBatchedInputScheduled = true; 4335 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4336 mConsumedBatchedInputRunnable, null); 4337 } 4338 } 4339 4340 void unscheduleConsumeBatchedInput() { 4341 if (mConsumeBatchedInputScheduled) { 4342 mConsumeBatchedInputScheduled = false; 4343 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4344 mConsumedBatchedInputRunnable, null); 4345 } 4346 } 4347 4348 void doConsumeBatchedInput(long frameTimeNanos) { 4349 if (mConsumeBatchedInputScheduled) { 4350 mConsumeBatchedInputScheduled = false; 4351 if (mInputEventReceiver != null) { 4352 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4353 } 4354 doProcessInputEvents(); 4355 } 4356 } 4357 4358 final class TraversalRunnable implements Runnable { 4359 @Override 4360 public void run() { 4361 doTraversal(); 4362 } 4363 } 4364 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4365 4366 final class WindowInputEventReceiver extends InputEventReceiver { 4367 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4368 super(inputChannel, looper); 4369 } 4370 4371 @Override 4372 public void onInputEvent(InputEvent event) { 4373 enqueueInputEvent(event, this, 0, true); 4374 } 4375 4376 @Override 4377 public void onBatchedInputEventPending() { 4378 scheduleConsumeBatchedInput(); 4379 } 4380 4381 @Override 4382 public void dispose() { 4383 unscheduleConsumeBatchedInput(); 4384 super.dispose(); 4385 } 4386 } 4387 WindowInputEventReceiver mInputEventReceiver; 4388 4389 final class ConsumeBatchedInputRunnable implements Runnable { 4390 @Override 4391 public void run() { 4392 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4393 } 4394 } 4395 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4396 new ConsumeBatchedInputRunnable(); 4397 boolean mConsumeBatchedInputScheduled; 4398 4399 final class InvalidateOnAnimationRunnable implements Runnable { 4400 private boolean mPosted; 4401 private ArrayList<View> mViews = new ArrayList<View>(); 4402 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4403 new ArrayList<AttachInfo.InvalidateInfo>(); 4404 private View[] mTempViews; 4405 private AttachInfo.InvalidateInfo[] mTempViewRects; 4406 4407 public void addView(View view) { 4408 synchronized (this) { 4409 mViews.add(view); 4410 postIfNeededLocked(); 4411 } 4412 } 4413 4414 public void addViewRect(AttachInfo.InvalidateInfo info) { 4415 synchronized (this) { 4416 mViewRects.add(info); 4417 postIfNeededLocked(); 4418 } 4419 } 4420 4421 public void removeView(View view) { 4422 synchronized (this) { 4423 mViews.remove(view); 4424 4425 for (int i = mViewRects.size(); i-- > 0; ) { 4426 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4427 if (info.target == view) { 4428 mViewRects.remove(i); 4429 info.release(); 4430 } 4431 } 4432 4433 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4434 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4435 mPosted = false; 4436 } 4437 } 4438 } 4439 4440 @Override 4441 public void run() { 4442 final int viewCount; 4443 final int viewRectCount; 4444 synchronized (this) { 4445 mPosted = false; 4446 4447 viewCount = mViews.size(); 4448 if (viewCount != 0) { 4449 mTempViews = mViews.toArray(mTempViews != null 4450 ? mTempViews : new View[viewCount]); 4451 mViews.clear(); 4452 } 4453 4454 viewRectCount = mViewRects.size(); 4455 if (viewRectCount != 0) { 4456 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4457 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4458 mViewRects.clear(); 4459 } 4460 } 4461 4462 for (int i = 0; i < viewCount; i++) { 4463 mTempViews[i].invalidate(); 4464 mTempViews[i] = null; 4465 } 4466 4467 for (int i = 0; i < viewRectCount; i++) { 4468 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4469 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4470 info.release(); 4471 } 4472 } 4473 4474 private void postIfNeededLocked() { 4475 if (!mPosted) { 4476 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4477 mPosted = true; 4478 } 4479 } 4480 } 4481 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4482 new InvalidateOnAnimationRunnable(); 4483 4484 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4485 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4486 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4487 } 4488 4489 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4490 long delayMilliseconds) { 4491 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4492 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4493 } 4494 4495 public void dispatchInvalidateOnAnimation(View view) { 4496 mInvalidateOnAnimationRunnable.addView(view); 4497 } 4498 4499 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4500 mInvalidateOnAnimationRunnable.addViewRect(info); 4501 } 4502 4503 public void enqueueDisplayList(DisplayList displayList) { 4504 mDisplayLists.add(displayList); 4505 4506 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4507 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4508 mHandler.sendMessage(msg); 4509 } 4510 4511 public void dequeueDisplayList(DisplayList displayList) { 4512 if (mDisplayLists.remove(displayList)) { 4513 displayList.invalidate(); 4514 if (mDisplayLists.size() == 0) { 4515 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4516 } 4517 } 4518 } 4519 4520 public void cancelInvalidate(View view) { 4521 mHandler.removeMessages(MSG_INVALIDATE, view); 4522 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4523 // them to the pool 4524 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4525 mInvalidateOnAnimationRunnable.removeView(view); 4526 } 4527 4528 public void dispatchKey(KeyEvent event) { 4529 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4530 msg.setAsynchronous(true); 4531 mHandler.sendMessage(msg); 4532 } 4533 4534 public void dispatchKeyFromIme(KeyEvent event) { 4535 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4536 msg.setAsynchronous(true); 4537 mHandler.sendMessage(msg); 4538 } 4539 4540 public void dispatchUnhandledKey(KeyEvent event) { 4541 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4542 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4543 final int keyCode = event.getKeyCode(); 4544 final int metaState = event.getMetaState(); 4545 4546 // Check for fallback actions specified by the key character map. 4547 KeyCharacterMap.FallbackAction fallbackAction = 4548 kcm.getFallbackAction(keyCode, metaState); 4549 if (fallbackAction != null) { 4550 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4551 KeyEvent fallbackEvent = KeyEvent.obtain( 4552 event.getDownTime(), event.getEventTime(), 4553 event.getAction(), fallbackAction.keyCode, 4554 event.getRepeatCount(), fallbackAction.metaState, 4555 event.getDeviceId(), event.getScanCode(), 4556 flags, event.getSource(), null); 4557 fallbackAction.recycle(); 4558 4559 dispatchKey(fallbackEvent); 4560 } 4561 } 4562 } 4563 4564 public void dispatchAppVisibility(boolean visible) { 4565 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4566 msg.arg1 = visible ? 1 : 0; 4567 mHandler.sendMessage(msg); 4568 } 4569 4570 public void dispatchScreenStateChange(boolean on) { 4571 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4572 msg.arg1 = on ? 1 : 0; 4573 mHandler.sendMessage(msg); 4574 } 4575 4576 public void dispatchGetNewSurface() { 4577 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4578 mHandler.sendMessage(msg); 4579 } 4580 4581 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4582 Message msg = Message.obtain(); 4583 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4584 msg.arg1 = hasFocus ? 1 : 0; 4585 msg.arg2 = inTouchMode ? 1 : 0; 4586 mHandler.sendMessage(msg); 4587 } 4588 4589 public void dispatchCloseSystemDialogs(String reason) { 4590 Message msg = Message.obtain(); 4591 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4592 msg.obj = reason; 4593 mHandler.sendMessage(msg); 4594 } 4595 4596 public void dispatchDragEvent(DragEvent event) { 4597 final int what; 4598 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4599 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4600 mHandler.removeMessages(what); 4601 } else { 4602 what = MSG_DISPATCH_DRAG_EVENT; 4603 } 4604 Message msg = mHandler.obtainMessage(what, event); 4605 mHandler.sendMessage(msg); 4606 } 4607 4608 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4609 int localValue, int localChanges) { 4610 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4611 args.seq = seq; 4612 args.globalVisibility = globalVisibility; 4613 args.localValue = localValue; 4614 args.localChanges = localChanges; 4615 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4616 } 4617 4618 public void dispatchDoneAnimating() { 4619 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4620 } 4621 4622 public void dispatchCheckFocus() { 4623 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4624 // This will result in a call to checkFocus() below. 4625 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4626 } 4627 } 4628 4629 /** 4630 * Post a callback to send a 4631 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4632 * This event is send at most once every 4633 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4634 */ 4635 private void postSendWindowContentChangedCallback(View source) { 4636 if (mSendWindowContentChangedAccessibilityEvent == null) { 4637 mSendWindowContentChangedAccessibilityEvent = 4638 new SendWindowContentChangedAccessibilityEvent(); 4639 } 4640 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4641 if (oldSource == null) { 4642 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4643 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4644 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4645 } else { 4646 mSendWindowContentChangedAccessibilityEvent.mSource = 4647 getCommonPredecessor(oldSource, source); 4648 } 4649 } 4650 4651 /** 4652 * Remove a posted callback to send a 4653 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4654 */ 4655 private void removeSendWindowContentChangedCallback() { 4656 if (mSendWindowContentChangedAccessibilityEvent != null) { 4657 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4658 } 4659 } 4660 4661 public boolean showContextMenuForChild(View originalView) { 4662 return false; 4663 } 4664 4665 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4666 return null; 4667 } 4668 4669 public void createContextMenu(ContextMenu menu) { 4670 } 4671 4672 public void childDrawableStateChanged(View child) { 4673 } 4674 4675 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4676 if (mView == null) { 4677 return false; 4678 } 4679 // Intercept accessibility focus events fired by virtual nodes to keep 4680 // track of accessibility focus position in such nodes. 4681 final int eventType = event.getEventType(); 4682 switch (eventType) { 4683 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4684 final long sourceNodeId = event.getSourceNodeId(); 4685 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4686 sourceNodeId); 4687 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4688 if (source != null) { 4689 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4690 if (provider != null) { 4691 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4692 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4693 setAccessibilityFocus(source, node); 4694 } 4695 } 4696 } break; 4697 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4698 final long sourceNodeId = event.getSourceNodeId(); 4699 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4700 sourceNodeId); 4701 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4702 if (source != null) { 4703 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4704 if (provider != null) { 4705 setAccessibilityFocus(null, null); 4706 } 4707 } 4708 } break; 4709 } 4710 mAccessibilityManager.sendAccessibilityEvent(event); 4711 return true; 4712 } 4713 4714 @Override 4715 public void childAccessibilityStateChanged(View child) { 4716 postSendWindowContentChangedCallback(child); 4717 } 4718 4719 private View getCommonPredecessor(View first, View second) { 4720 if (mAttachInfo != null) { 4721 if (mTempHashSet == null) { 4722 mTempHashSet = new HashSet<View>(); 4723 } 4724 HashSet<View> seen = mTempHashSet; 4725 seen.clear(); 4726 View firstCurrent = first; 4727 while (firstCurrent != null) { 4728 seen.add(firstCurrent); 4729 ViewParent firstCurrentParent = firstCurrent.mParent; 4730 if (firstCurrentParent instanceof View) { 4731 firstCurrent = (View) firstCurrentParent; 4732 } else { 4733 firstCurrent = null; 4734 } 4735 } 4736 View secondCurrent = second; 4737 while (secondCurrent != null) { 4738 if (seen.contains(secondCurrent)) { 4739 seen.clear(); 4740 return secondCurrent; 4741 } 4742 ViewParent secondCurrentParent = secondCurrent.mParent; 4743 if (secondCurrentParent instanceof View) { 4744 secondCurrent = (View) secondCurrentParent; 4745 } else { 4746 secondCurrent = null; 4747 } 4748 } 4749 seen.clear(); 4750 } 4751 return null; 4752 } 4753 4754 void checkThread() { 4755 if (mThread != Thread.currentThread()) { 4756 throw new CalledFromWrongThreadException( 4757 "Only the original thread that created a view hierarchy can touch its views."); 4758 } 4759 } 4760 4761 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4762 // ViewAncestor never intercepts touch event, so this can be a no-op 4763 } 4764 4765 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4766 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4767 if (rectangle != null) { 4768 mTempRect.set(rectangle); 4769 mTempRect.offset(0, -mCurScrollY); 4770 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4771 try { 4772 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4773 } catch (RemoteException re) { 4774 /* ignore */ 4775 } 4776 } 4777 return scrolled; 4778 } 4779 4780 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4781 // Do nothing. 4782 } 4783 4784 class TakenSurfaceHolder extends BaseSurfaceHolder { 4785 @Override 4786 public boolean onAllowLockCanvas() { 4787 return mDrawingAllowed; 4788 } 4789 4790 @Override 4791 public void onRelayoutContainer() { 4792 // Not currently interesting -- from changing between fixed and layout size. 4793 } 4794 4795 public void setFormat(int format) { 4796 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4797 } 4798 4799 public void setType(int type) { 4800 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4801 } 4802 4803 @Override 4804 public void onUpdateSurface() { 4805 // We take care of format and type changes on our own. 4806 throw new IllegalStateException("Shouldn't be here"); 4807 } 4808 4809 public boolean isCreating() { 4810 return mIsCreating; 4811 } 4812 4813 @Override 4814 public void setFixedSize(int width, int height) { 4815 throw new UnsupportedOperationException( 4816 "Currently only support sizing from layout"); 4817 } 4818 4819 public void setKeepScreenOn(boolean screenOn) { 4820 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4821 } 4822 } 4823 4824 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4825 private WeakReference<ViewRootImpl> mViewAncestor; 4826 4827 public InputMethodCallback(ViewRootImpl viewAncestor) { 4828 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4829 } 4830 4831 @Override 4832 public void finishedEvent(int seq, boolean handled) { 4833 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4834 if (viewAncestor != null) { 4835 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4836 } 4837 } 4838 } 4839 4840 static class W extends IWindow.Stub { 4841 private final WeakReference<ViewRootImpl> mViewAncestor; 4842 private final IWindowSession mWindowSession; 4843 4844 W(ViewRootImpl viewAncestor) { 4845 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4846 mWindowSession = viewAncestor.mWindowSession; 4847 } 4848 4849 public void resized(Rect frame, Rect contentInsets, 4850 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4851 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4852 if (viewAncestor != null) { 4853 viewAncestor.dispatchResized(frame, contentInsets, 4854 visibleInsets, reportDraw, newConfig); 4855 } 4856 } 4857 4858 @Override 4859 public void moved(int newX, int newY) { 4860 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4861 if (viewAncestor != null) { 4862 viewAncestor.dispatchMoved(newX, newY); 4863 } 4864 } 4865 4866 public void dispatchAppVisibility(boolean visible) { 4867 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4868 if (viewAncestor != null) { 4869 viewAncestor.dispatchAppVisibility(visible); 4870 } 4871 } 4872 4873 public void dispatchScreenState(boolean on) { 4874 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4875 if (viewAncestor != null) { 4876 viewAncestor.dispatchScreenStateChange(on); 4877 } 4878 } 4879 4880 public void dispatchGetNewSurface() { 4881 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4882 if (viewAncestor != null) { 4883 viewAncestor.dispatchGetNewSurface(); 4884 } 4885 } 4886 4887 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4888 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4889 if (viewAncestor != null) { 4890 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4891 } 4892 } 4893 4894 private static int checkCallingPermission(String permission) { 4895 try { 4896 return ActivityManagerNative.getDefault().checkPermission( 4897 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4898 } catch (RemoteException e) { 4899 return PackageManager.PERMISSION_DENIED; 4900 } 4901 } 4902 4903 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4904 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4905 if (viewAncestor != null) { 4906 final View view = viewAncestor.mView; 4907 if (view != null) { 4908 if (checkCallingPermission(Manifest.permission.DUMP) != 4909 PackageManager.PERMISSION_GRANTED) { 4910 throw new SecurityException("Insufficient permissions to invoke" 4911 + " executeCommand() from pid=" + Binder.getCallingPid() 4912 + ", uid=" + Binder.getCallingUid()); 4913 } 4914 4915 OutputStream clientStream = null; 4916 try { 4917 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4918 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4919 } catch (IOException e) { 4920 e.printStackTrace(); 4921 } finally { 4922 if (clientStream != null) { 4923 try { 4924 clientStream.close(); 4925 } catch (IOException e) { 4926 e.printStackTrace(); 4927 } 4928 } 4929 } 4930 } 4931 } 4932 } 4933 4934 public void closeSystemDialogs(String reason) { 4935 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4936 if (viewAncestor != null) { 4937 viewAncestor.dispatchCloseSystemDialogs(reason); 4938 } 4939 } 4940 4941 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4942 boolean sync) { 4943 if (sync) { 4944 try { 4945 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4946 } catch (RemoteException e) { 4947 } 4948 } 4949 } 4950 4951 public void dispatchWallpaperCommand(String action, int x, int y, 4952 int z, Bundle extras, boolean sync) { 4953 if (sync) { 4954 try { 4955 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4956 } catch (RemoteException e) { 4957 } 4958 } 4959 } 4960 4961 /* Drag/drop */ 4962 public void dispatchDragEvent(DragEvent event) { 4963 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4964 if (viewAncestor != null) { 4965 viewAncestor.dispatchDragEvent(event); 4966 } 4967 } 4968 4969 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4970 int localValue, int localChanges) { 4971 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4972 if (viewAncestor != null) { 4973 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4974 localValue, localChanges); 4975 } 4976 } 4977 4978 public void doneAnimating() { 4979 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4980 if (viewAncestor != null) { 4981 viewAncestor.dispatchDoneAnimating(); 4982 } 4983 } 4984 } 4985 4986 /** 4987 * Maintains state information for a single trackball axis, generating 4988 * discrete (DPAD) movements based on raw trackball motion. 4989 */ 4990 static final class TrackballAxis { 4991 /** 4992 * The maximum amount of acceleration we will apply. 4993 */ 4994 static final float MAX_ACCELERATION = 20; 4995 4996 /** 4997 * The maximum amount of time (in milliseconds) between events in order 4998 * for us to consider the user to be doing fast trackball movements, 4999 * and thus apply an acceleration. 5000 */ 5001 static final long FAST_MOVE_TIME = 150; 5002 5003 /** 5004 * Scaling factor to the time (in milliseconds) between events to how 5005 * much to multiple/divide the current acceleration. When movement 5006 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5007 * FAST_MOVE_TIME it divides it. 5008 */ 5009 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5010 5011 float position; 5012 float absPosition; 5013 float acceleration = 1; 5014 long lastMoveTime = 0; 5015 int step; 5016 int dir; 5017 int nonAccelMovement; 5018 5019 void reset(int _step) { 5020 position = 0; 5021 acceleration = 1; 5022 lastMoveTime = 0; 5023 step = _step; 5024 dir = 0; 5025 } 5026 5027 /** 5028 * Add trackball movement into the state. If the direction of movement 5029 * has been reversed, the state is reset before adding the 5030 * movement (so that you don't have to compensate for any previously 5031 * collected movement before see the result of the movement in the 5032 * new direction). 5033 * 5034 * @return Returns the absolute value of the amount of movement 5035 * collected so far. 5036 */ 5037 float collect(float off, long time, String axis) { 5038 long normTime; 5039 if (off > 0) { 5040 normTime = (long)(off * FAST_MOVE_TIME); 5041 if (dir < 0) { 5042 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5043 position = 0; 5044 step = 0; 5045 acceleration = 1; 5046 lastMoveTime = 0; 5047 } 5048 dir = 1; 5049 } else if (off < 0) { 5050 normTime = (long)((-off) * FAST_MOVE_TIME); 5051 if (dir > 0) { 5052 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5053 position = 0; 5054 step = 0; 5055 acceleration = 1; 5056 lastMoveTime = 0; 5057 } 5058 dir = -1; 5059 } else { 5060 normTime = 0; 5061 } 5062 5063 // The number of milliseconds between each movement that is 5064 // considered "normal" and will not result in any acceleration 5065 // or deceleration, scaled by the offset we have here. 5066 if (normTime > 0) { 5067 long delta = time - lastMoveTime; 5068 lastMoveTime = time; 5069 float acc = acceleration; 5070 if (delta < normTime) { 5071 // The user is scrolling rapidly, so increase acceleration. 5072 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5073 if (scale > 1) acc *= scale; 5074 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5075 + off + " normTime=" + normTime + " delta=" + delta 5076 + " scale=" + scale + " acc=" + acc); 5077 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5078 } else { 5079 // The user is scrolling slowly, so decrease acceleration. 5080 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5081 if (scale > 1) acc /= scale; 5082 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5083 + off + " normTime=" + normTime + " delta=" + delta 5084 + " scale=" + scale + " acc=" + acc); 5085 acceleration = acc > 1 ? acc : 1; 5086 } 5087 } 5088 position += off; 5089 return (absPosition = Math.abs(position)); 5090 } 5091 5092 /** 5093 * Generate the number of discrete movement events appropriate for 5094 * the currently collected trackball movement. 5095 * 5096 * @param precision The minimum movement required to generate the 5097 * first discrete movement. 5098 * 5099 * @return Returns the number of discrete movements, either positive 5100 * or negative, or 0 if there is not enough trackball movement yet 5101 * for a discrete movement. 5102 */ 5103 int generate(float precision) { 5104 int movement = 0; 5105 nonAccelMovement = 0; 5106 do { 5107 final int dir = position >= 0 ? 1 : -1; 5108 switch (step) { 5109 // If we are going to execute the first step, then we want 5110 // to do this as soon as possible instead of waiting for 5111 // a full movement, in order to make things look responsive. 5112 case 0: 5113 if (absPosition < precision) { 5114 return movement; 5115 } 5116 movement += dir; 5117 nonAccelMovement += dir; 5118 step = 1; 5119 break; 5120 // If we have generated the first movement, then we need 5121 // to wait for the second complete trackball motion before 5122 // generating the second discrete movement. 5123 case 1: 5124 if (absPosition < 2) { 5125 return movement; 5126 } 5127 movement += dir; 5128 nonAccelMovement += dir; 5129 position += dir > 0 ? -2 : 2; 5130 absPosition = Math.abs(position); 5131 step = 2; 5132 break; 5133 // After the first two, we generate discrete movements 5134 // consistently with the trackball, applying an acceleration 5135 // if the trackball is moving quickly. This is a simple 5136 // acceleration on top of what we already compute based 5137 // on how quickly the wheel is being turned, to apply 5138 // a longer increasing acceleration to continuous movement 5139 // in one direction. 5140 default: 5141 if (absPosition < 1) { 5142 return movement; 5143 } 5144 movement += dir; 5145 position += dir >= 0 ? -1 : 1; 5146 absPosition = Math.abs(position); 5147 float acc = acceleration; 5148 acc *= 1.1f; 5149 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5150 break; 5151 } 5152 } while (true); 5153 } 5154 } 5155 5156 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5157 public CalledFromWrongThreadException(String msg) { 5158 super(msg); 5159 } 5160 } 5161 5162 private SurfaceHolder mHolder = new SurfaceHolder() { 5163 // we only need a SurfaceHolder for opengl. it would be nice 5164 // to implement everything else though, especially the callback 5165 // support (opengl doesn't make use of it right now, but eventually 5166 // will). 5167 public Surface getSurface() { 5168 return mSurface; 5169 } 5170 5171 public boolean isCreating() { 5172 return false; 5173 } 5174 5175 public void addCallback(Callback callback) { 5176 } 5177 5178 public void removeCallback(Callback callback) { 5179 } 5180 5181 public void setFixedSize(int width, int height) { 5182 } 5183 5184 public void setSizeFromLayout() { 5185 } 5186 5187 public void setFormat(int format) { 5188 } 5189 5190 public void setType(int type) { 5191 } 5192 5193 public void setKeepScreenOn(boolean screenOn) { 5194 } 5195 5196 public Canvas lockCanvas() { 5197 return null; 5198 } 5199 5200 public Canvas lockCanvas(Rect dirty) { 5201 return null; 5202 } 5203 5204 public void unlockCanvasAndPost(Canvas canvas) { 5205 } 5206 public Rect getSurfaceFrame() { 5207 return null; 5208 } 5209 }; 5210 5211 static RunQueue getRunQueue() { 5212 RunQueue rq = sRunQueues.get(); 5213 if (rq != null) { 5214 return rq; 5215 } 5216 rq = new RunQueue(); 5217 sRunQueues.set(rq); 5218 return rq; 5219 } 5220 5221 /** 5222 * The run queue is used to enqueue pending work from Views when no Handler is 5223 * attached. The work is executed during the next call to performTraversals on 5224 * the thread. 5225 * @hide 5226 */ 5227 static final class RunQueue { 5228 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5229 5230 void post(Runnable action) { 5231 postDelayed(action, 0); 5232 } 5233 5234 void postDelayed(Runnable action, long delayMillis) { 5235 HandlerAction handlerAction = new HandlerAction(); 5236 handlerAction.action = action; 5237 handlerAction.delay = delayMillis; 5238 5239 synchronized (mActions) { 5240 mActions.add(handlerAction); 5241 } 5242 } 5243 5244 void removeCallbacks(Runnable action) { 5245 final HandlerAction handlerAction = new HandlerAction(); 5246 handlerAction.action = action; 5247 5248 synchronized (mActions) { 5249 final ArrayList<HandlerAction> actions = mActions; 5250 5251 while (actions.remove(handlerAction)) { 5252 // Keep going 5253 } 5254 } 5255 } 5256 5257 void executeActions(Handler handler) { 5258 synchronized (mActions) { 5259 final ArrayList<HandlerAction> actions = mActions; 5260 final int count = actions.size(); 5261 5262 for (int i = 0; i < count; i++) { 5263 final HandlerAction handlerAction = actions.get(i); 5264 handler.postDelayed(handlerAction.action, handlerAction.delay); 5265 } 5266 5267 actions.clear(); 5268 } 5269 } 5270 5271 private static class HandlerAction { 5272 Runnable action; 5273 long delay; 5274 5275 @Override 5276 public boolean equals(Object o) { 5277 if (this == o) return true; 5278 if (o == null || getClass() != o.getClass()) return false; 5279 5280 HandlerAction that = (HandlerAction) o; 5281 return !(action != null ? !action.equals(that.action) : that.action != null); 5282 5283 } 5284 5285 @Override 5286 public int hashCode() { 5287 int result = action != null ? action.hashCode() : 0; 5288 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5289 return result; 5290 } 5291 } 5292 } 5293 5294 /** 5295 * Class for managing the accessibility interaction connection 5296 * based on the global accessibility state. 5297 */ 5298 final class AccessibilityInteractionConnectionManager 5299 implements AccessibilityStateChangeListener { 5300 public void onAccessibilityStateChanged(boolean enabled) { 5301 if (enabled) { 5302 ensureConnection(); 5303 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5304 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5305 View focusedView = mView.findFocus(); 5306 if (focusedView != null && focusedView != mView) { 5307 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5308 } 5309 } 5310 } else { 5311 ensureNoConnection(); 5312 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5313 } 5314 } 5315 5316 public void ensureConnection() { 5317 if (mAttachInfo != null) { 5318 final boolean registered = 5319 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5320 if (!registered) { 5321 mAttachInfo.mAccessibilityWindowId = 5322 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5323 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5324 } 5325 } 5326 } 5327 5328 public void ensureNoConnection() { 5329 final boolean registered = 5330 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5331 if (registered) { 5332 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5333 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5334 } 5335 } 5336 } 5337 5338 /** 5339 * This class is an interface this ViewAncestor provides to the 5340 * AccessibilityManagerService to the latter can interact with 5341 * the view hierarchy in this ViewAncestor. 5342 */ 5343 static final class AccessibilityInteractionConnection 5344 extends IAccessibilityInteractionConnection.Stub { 5345 private final WeakReference<ViewRootImpl> mViewRootImpl; 5346 5347 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5348 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5349 } 5350 5351 @Override 5352 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5353 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5354 int interrogatingPid, long interrogatingTid) { 5355 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5356 if (viewRootImpl != null && viewRootImpl.mView != null) { 5357 viewRootImpl.getAccessibilityInteractionController() 5358 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5359 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5360 } else { 5361 // We cannot make the call and notify the caller so it does not wait. 5362 try { 5363 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5364 } catch (RemoteException re) { 5365 /* best effort - ignore */ 5366 } 5367 } 5368 } 5369 5370 @Override 5371 public void performAccessibilityAction(long accessibilityNodeId, int action, 5372 Bundle arguments, int interactionId, 5373 IAccessibilityInteractionConnectionCallback callback, int flags, 5374 int interogatingPid, long interrogatingTid) { 5375 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5376 if (viewRootImpl != null && viewRootImpl.mView != null) { 5377 viewRootImpl.getAccessibilityInteractionController() 5378 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5379 interactionId, callback, flags, interogatingPid, interrogatingTid); 5380 } else { 5381 // We cannot make the call and notify the caller so it does not wait. 5382 try { 5383 callback.setPerformAccessibilityActionResult(false, interactionId); 5384 } catch (RemoteException re) { 5385 /* best effort - ignore */ 5386 } 5387 } 5388 } 5389 5390 @Override 5391 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5392 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5393 int interrogatingPid, long interrogatingTid) { 5394 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5395 if (viewRootImpl != null && viewRootImpl.mView != null) { 5396 viewRootImpl.getAccessibilityInteractionController() 5397 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5398 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5399 } else { 5400 // We cannot make the call and notify the caller so it does not wait. 5401 try { 5402 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5403 } catch (RemoteException re) { 5404 /* best effort - ignore */ 5405 } 5406 } 5407 } 5408 5409 @Override 5410 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5411 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5412 int interrogatingPid, long interrogatingTid) { 5413 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5414 if (viewRootImpl != null && viewRootImpl.mView != null) { 5415 viewRootImpl.getAccessibilityInteractionController() 5416 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5417 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5418 } else { 5419 // We cannot make the call and notify the caller so it does not wait. 5420 try { 5421 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5422 } catch (RemoteException re) { 5423 /* best effort - ignore */ 5424 } 5425 } 5426 } 5427 5428 @Override 5429 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5430 IAccessibilityInteractionConnectionCallback callback, int flags, 5431 int interrogatingPid, long interrogatingTid) { 5432 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5433 if (viewRootImpl != null && viewRootImpl.mView != null) { 5434 viewRootImpl.getAccessibilityInteractionController() 5435 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5436 flags, interrogatingPid, interrogatingTid); 5437 } else { 5438 // We cannot make the call and notify the caller so it does not wait. 5439 try { 5440 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5441 } catch (RemoteException re) { 5442 /* best effort - ignore */ 5443 } 5444 } 5445 } 5446 5447 @Override 5448 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5449 IAccessibilityInteractionConnectionCallback callback, int flags, 5450 int interrogatingPid, long interrogatingTid) { 5451 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5452 if (viewRootImpl != null && viewRootImpl.mView != null) { 5453 viewRootImpl.getAccessibilityInteractionController() 5454 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5455 callback, flags, interrogatingPid, interrogatingTid); 5456 } else { 5457 // We cannot make the call and notify the caller so it does not wait. 5458 try { 5459 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5460 } catch (RemoteException re) { 5461 /* best effort - ignore */ 5462 } 5463 } 5464 } 5465 } 5466 5467 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5468 public View mSource; 5469 5470 public void run() { 5471 if (mSource != null) { 5472 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5473 mSource.resetAccessibilityStateChanged(); 5474 mSource = null; 5475 } 5476 } 5477 } 5478} 5479