ViewRootImpl.java revision 4ef158baa3382909c436cbc31e123ef981387e4e
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 129 130 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 131 static boolean sFirstDrawComplete = false; 132 133 static final ArrayList<ComponentCallbacks> sConfigCallbacks 134 = new ArrayList<ComponentCallbacks>(); 135 136 private static boolean sUseRenderThread = false; 137 private static boolean sRenderThreadQueried = false; 138 private static final Object[] sRenderThreadQueryLock = new Object[0]; 139 140 final IWindowSession mWindowSession; 141 final Display mDisplay; 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 final SimulatedTrackball mSimulatedTrackball = new SimulatedTrackball(); 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 final int mTargetSdkVersion; 168 169 int mSeq; 170 171 View mView; 172 View mFocusedView; 173 View mRealFocusedView; // this is not set to null in touch mode 174 View mOldFocusedView; 175 176 View mAccessibilityFocusedHost; 177 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 178 179 int mViewVisibility; 180 boolean mAppVisible = true; 181 int mOrigWindowType = -1; 182 183 // Set to true if the owner of this window is in the stopped state, 184 // so the window should no longer be active. 185 boolean mStopped = false; 186 187 boolean mLastInCompatMode = false; 188 189 SurfaceHolder.Callback2 mSurfaceHolderCallback; 190 BaseSurfaceHolder mSurfaceHolder; 191 boolean mIsCreating; 192 boolean mDrawingAllowed; 193 194 final Region mTransparentRegion; 195 final Region mPreviousTransparentRegion; 196 197 int mWidth; 198 int mHeight; 199 Rect mDirty; 200 final Rect mCurrentDirty = new Rect(); 201 final Rect mPreviousDirty = new Rect(); 202 boolean mIsAnimating; 203 204 CompatibilityInfo.Translator mTranslator; 205 206 final View.AttachInfo mAttachInfo; 207 InputChannel mInputChannel; 208 InputQueue.Callback mInputQueueCallback; 209 InputQueue mInputQueue; 210 FallbackEventHandler mFallbackEventHandler; 211 Choreographer mChoreographer; 212 213 final Rect mTempRect; // used in the transaction to not thrash the heap. 214 final Rect mVisRect; // used to retrieve visible rect of focused view. 215 216 boolean mTraversalScheduled; 217 int mTraversalBarrier; 218 boolean mWillDrawSoon; 219 /** Set to true while in performTraversals for detecting when die(true) is called from internal 220 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 221 boolean mIsInTraversal; 222 boolean mFitSystemWindowsRequested; 223 boolean mLayoutRequested; 224 boolean mFirst; 225 boolean mReportNextDraw; 226 boolean mFullRedrawNeeded; 227 boolean mNewSurfaceNeeded; 228 boolean mHasHadWindowFocus; 229 boolean mLastWasImTarget; 230 boolean mWindowsAnimating; 231 boolean mIsDrawing; 232 int mLastSystemUiVisibility; 233 int mClientWindowLayoutFlags; 234 235 // Pool of queued input events. 236 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 237 private QueuedInputEvent mQueuedInputEventPool; 238 private int mQueuedInputEventPoolSize; 239 240 // Input event queue. 241 QueuedInputEvent mFirstPendingInputEvent; 242 QueuedInputEvent mCurrentInputEvent; 243 boolean mProcessInputEventsScheduled; 244 245 boolean mWindowAttributesChanged = false; 246 int mWindowAttributesChangesFlag = 0; 247 248 // These can be accessed by any thread, must be protected with a lock. 249 // Surface can never be reassigned or cleared (use Surface.clear()). 250 private final Surface mSurface = new Surface(); 251 252 boolean mAdded; 253 boolean mAddedTouchMode; 254 255 final CompatibilityInfoHolder mCompatibilityInfo; 256 257 // These are accessed by multiple threads. 258 final Rect mWinFrame; // frame given by window manager. 259 260 final Rect mPendingVisibleInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mFitSystemWindowsInsets = new Rect(); 266 267 final Configuration mLastConfiguration = new Configuration(); 268 final Configuration mPendingConfiguration = new Configuration(); 269 270 boolean mScrollMayChange; 271 int mSoftInputMode; 272 View mLastScrolledFocus; 273 int mScrollY; 274 int mCurScrollY; 275 Scroller mScroller; 276 HardwareLayer mResizeBuffer; 277 long mResizeBufferStartTime; 278 int mResizeBufferDuration; 279 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 280 private ArrayList<LayoutTransition> mPendingTransitions; 281 282 final ViewConfiguration mViewConfiguration; 283 284 /* Drag/drop */ 285 ClipDescription mDragDescription; 286 View mCurrentDragView; 287 volatile Object mLocalDragState; 288 final PointF mDragPoint = new PointF(); 289 final PointF mLastTouchPoint = new PointF(); 290 291 private boolean mProfileRendering; 292 private Thread mRenderProfiler; 293 private volatile boolean mRenderProfilingEnabled; 294 295 // Variables to track frames per second, enabled via DEBUG_FPS flag 296 private long mFpsStartTime = -1; 297 private long mFpsPrevTime = -1; 298 private int mFpsNumFrames; 299 300 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 301 302 /** 303 * see {@link #playSoundEffect(int)} 304 */ 305 AudioManager mAudioManager; 306 307 final AccessibilityManager mAccessibilityManager; 308 309 AccessibilityInteractionController mAccessibilityInteractionController; 310 311 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 312 313 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 314 315 HashSet<View> mTempHashSet; 316 317 private final int mDensity; 318 private final int mNoncompatDensity; 319 320 private int mViewLayoutDirectionInitial; 321 322 /** 323 * Consistency verifier for debugging purposes. 324 */ 325 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 326 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 327 new InputEventConsistencyVerifier(this, 0) : null; 328 329 static final class SystemUiVisibilityInfo { 330 int seq; 331 int globalVisibility; 332 int localValue; 333 int localChanges; 334 } 335 336 public ViewRootImpl(Context context, Display display) { 337 super(); 338 339 if (MEASURE_LATENCY) { 340 if (lt == null) { 341 lt = new LatencyTimer(100, 1000); 342 } 343 } 344 345 // Initialize the statics when this class is first instantiated. This is 346 // done here instead of in the static block because Zygote does not 347 // allow the spawning of threads. 348 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 349 mDisplay = display; 350 351 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 352 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 353 354 mThread = Thread.currentThread(); 355 mLocation = new WindowLeaked(null); 356 mLocation.fillInStackTrace(); 357 mWidth = -1; 358 mHeight = -1; 359 mDirty = new Rect(); 360 mTempRect = new Rect(); 361 mVisRect = new Rect(); 362 mWinFrame = new Rect(); 363 mWindow = new W(this); 364 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 365 mInputMethodCallback = new InputMethodCallback(this); 366 mViewVisibility = View.GONE; 367 mTransparentRegion = new Region(); 368 mPreviousTransparentRegion = new Region(); 369 mFirst = true; // true for the first time the view is added 370 mAdded = false; 371 mAccessibilityManager = AccessibilityManager.getInstance(context); 372 mAccessibilityInteractionConnectionManager = 373 new AccessibilityInteractionConnectionManager(); 374 mAccessibilityManager.addAccessibilityStateChangeListener( 375 mAccessibilityInteractionConnectionManager); 376 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 377 mViewConfiguration = ViewConfiguration.get(context); 378 mDensity = context.getResources().getDisplayMetrics().densityDpi; 379 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 380 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 381 mProfileRendering = Boolean.parseBoolean( 382 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 383 mChoreographer = Choreographer.getInstance(); 384 385 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 386 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 387 loadSystemProperties(); 388 } 389 390 /** 391 * @return True if the application requests the use of a separate render thread, 392 * false otherwise 393 */ 394 private static boolean isRenderThreadRequested(Context context) { 395 if (USE_RENDER_THREAD) { 396 synchronized (sRenderThreadQueryLock) { 397 if (!sRenderThreadQueried) { 398 final PackageManager packageManager = context.getPackageManager(); 399 final String packageName = context.getApplicationInfo().packageName; 400 try { 401 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 402 PackageManager.GET_META_DATA); 403 if (applicationInfo.metaData != null) { 404 sUseRenderThread = applicationInfo.metaData.getBoolean( 405 "android.graphics.renderThread", false); 406 } 407 } catch (PackageManager.NameNotFoundException e) { 408 } finally { 409 sRenderThreadQueried = true; 410 } 411 } 412 return sUseRenderThread; 413 } 414 } else { 415 return false; 416 } 417 } 418 419 public static void addFirstDrawHandler(Runnable callback) { 420 synchronized (sFirstDrawHandlers) { 421 if (!sFirstDrawComplete) { 422 sFirstDrawHandlers.add(callback); 423 } 424 } 425 } 426 427 public static void addConfigCallback(ComponentCallbacks callback) { 428 synchronized (sConfigCallbacks) { 429 sConfigCallbacks.add(callback); 430 } 431 } 432 433 // FIXME for perf testing only 434 private boolean mProfile = false; 435 436 /** 437 * Call this to profile the next traversal call. 438 * FIXME for perf testing only. Remove eventually 439 */ 440 public void profile() { 441 mProfile = true; 442 } 443 444 /** 445 * Indicates whether we are in touch mode. Calling this method triggers an IPC 446 * call and should be avoided whenever possible. 447 * 448 * @return True, if the device is in touch mode, false otherwise. 449 * 450 * @hide 451 */ 452 static boolean isInTouchMode() { 453 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 454 if (windowSession != null) { 455 try { 456 return windowSession.getInTouchMode(); 457 } catch (RemoteException e) { 458 } 459 } 460 return false; 461 } 462 463 /** 464 * We have one child 465 */ 466 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 467 synchronized (this) { 468 if (mView == null) { 469 mView = view; 470 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 471 mFallbackEventHandler.setView(view); 472 mWindowAttributes.copyFrom(attrs); 473 attrs = mWindowAttributes; 474 // Keep track of the actual window flags supplied by the client. 475 mClientWindowLayoutFlags = attrs.flags; 476 477 setAccessibilityFocus(null, null); 478 479 if (view instanceof RootViewSurfaceTaker) { 480 mSurfaceHolderCallback = 481 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 482 if (mSurfaceHolderCallback != null) { 483 mSurfaceHolder = new TakenSurfaceHolder(); 484 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 485 } 486 } 487 488 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 489 mTranslator = compatibilityInfo.getTranslator(); 490 491 // If the application owns the surface, don't enable hardware acceleration 492 if (mSurfaceHolder == null) { 493 enableHardwareAcceleration(mView.getContext(), attrs); 494 } 495 496 boolean restore = false; 497 if (mTranslator != null) { 498 mSurface.setCompatibilityTranslator(mTranslator); 499 restore = true; 500 attrs.backup(); 501 mTranslator.translateWindowLayout(attrs); 502 } 503 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 504 505 if (!compatibilityInfo.supportsScreen()) { 506 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 507 mLastInCompatMode = true; 508 } 509 510 mSoftInputMode = attrs.softInputMode; 511 mWindowAttributesChanged = true; 512 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 513 mAttachInfo.mRootView = view; 514 mAttachInfo.mScalingRequired = mTranslator != null; 515 mAttachInfo.mApplicationScale = 516 mTranslator == null ? 1.0f : mTranslator.applicationScale; 517 if (panelParentView != null) { 518 mAttachInfo.mPanelParentWindowToken 519 = panelParentView.getApplicationWindowToken(); 520 } 521 mAdded = true; 522 int res; /* = WindowManagerImpl.ADD_OKAY; */ 523 524 // Schedule the first layout -before- adding to the window 525 // manager, to make sure we do the relayout before receiving 526 // any other events from the system. 527 requestLayout(); 528 if ((mWindowAttributes.inputFeatures 529 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 530 mInputChannel = new InputChannel(); 531 } 532 try { 533 mOrigWindowType = mWindowAttributes.type; 534 mAttachInfo.mRecomputeGlobalAttributes = true; 535 collectViewAttributes(); 536 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 537 getHostVisibility(), mDisplay.getDisplayId(), 538 mAttachInfo.mContentInsets, mInputChannel); 539 } catch (RemoteException e) { 540 mAdded = false; 541 mView = null; 542 mAttachInfo.mRootView = null; 543 mInputChannel = null; 544 mFallbackEventHandler.setView(null); 545 unscheduleTraversals(); 546 setAccessibilityFocus(null, null); 547 throw new RuntimeException("Adding window failed", e); 548 } finally { 549 if (restore) { 550 attrs.restore(); 551 } 552 } 553 554 if (mTranslator != null) { 555 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 556 } 557 mPendingContentInsets.set(mAttachInfo.mContentInsets); 558 mPendingVisibleInsets.set(0, 0, 0, 0); 559 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 560 if (res < WindowManagerGlobal.ADD_OKAY) { 561 mAttachInfo.mRootView = null; 562 mAdded = false; 563 mFallbackEventHandler.setView(null); 564 unscheduleTraversals(); 565 setAccessibilityFocus(null, null); 566 switch (res) { 567 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 568 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 569 throw new WindowManager.BadTokenException( 570 "Unable to add window -- token " + attrs.token 571 + " is not valid; is your activity running?"); 572 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 573 throw new WindowManager.BadTokenException( 574 "Unable to add window -- token " + attrs.token 575 + " is not for an application"); 576 case WindowManagerGlobal.ADD_APP_EXITING: 577 throw new WindowManager.BadTokenException( 578 "Unable to add window -- app for token " + attrs.token 579 + " is exiting"); 580 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 581 throw new WindowManager.BadTokenException( 582 "Unable to add window -- window " + mWindow 583 + " has already been added"); 584 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 585 // Silently ignore -- we would have just removed it 586 // right away, anyway. 587 return; 588 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 589 throw new WindowManager.BadTokenException( 590 "Unable to add window " + mWindow + 591 " -- another window of this type already exists"); 592 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 593 throw new WindowManager.BadTokenException( 594 "Unable to add window " + mWindow + 595 " -- permission denied for this window type"); 596 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 597 throw new WindowManager.InvalidDisplayException( 598 "Unable to add window " + mWindow + 599 " -- the specified display can not be found"); 600 } 601 throw new RuntimeException( 602 "Unable to add window -- unknown error code " + res); 603 } 604 605 if (view instanceof RootViewSurfaceTaker) { 606 mInputQueueCallback = 607 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 608 } 609 if (mInputChannel != null) { 610 if (mInputQueueCallback != null) { 611 mInputQueue = new InputQueue(mInputChannel); 612 mInputQueueCallback.onInputQueueCreated(mInputQueue); 613 } else { 614 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 615 Looper.myLooper()); 616 } 617 } 618 619 view.assignParent(this); 620 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 621 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 622 623 if (mAccessibilityManager.isEnabled()) { 624 mAccessibilityInteractionConnectionManager.ensureConnection(); 625 } 626 627 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 628 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 629 } 630 } 631 } 632 } 633 634 void destroyHardwareResources() { 635 if (mAttachInfo.mHardwareRenderer != null) { 636 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 637 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 638 } 639 mAttachInfo.mHardwareRenderer.destroy(false); 640 } 641 } 642 643 void terminateHardwareResources() { 644 if (mAttachInfo.mHardwareRenderer != null) { 645 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 646 mAttachInfo.mHardwareRenderer.destroy(false); 647 } 648 } 649 650 void destroyHardwareLayers() { 651 if (mThread != Thread.currentThread()) { 652 if (mAttachInfo.mHardwareRenderer != null && 653 mAttachInfo.mHardwareRenderer.isEnabled()) { 654 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 655 } 656 } else { 657 if (mAttachInfo.mHardwareRenderer != null && 658 mAttachInfo.mHardwareRenderer.isEnabled()) { 659 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 660 } 661 } 662 } 663 664 void pushHardwareLayerUpdate(HardwareLayer layer) { 665 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 666 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 667 } 668 } 669 670 public boolean attachFunctor(int functor) { 671 //noinspection SimplifiableIfStatement 672 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 673 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 674 } 675 return false; 676 } 677 678 public void detachFunctor(int functor) { 679 if (mAttachInfo.mHardwareRenderer != null) { 680 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 681 } 682 } 683 684 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 685 mAttachInfo.mHardwareAccelerated = false; 686 mAttachInfo.mHardwareAccelerationRequested = false; 687 688 // Don't enable hardware acceleration when the application is in compatibility mode 689 if (mTranslator != null) return; 690 691 // Try to enable hardware acceleration if requested 692 final boolean hardwareAccelerated = 693 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 694 695 if (hardwareAccelerated) { 696 if (!HardwareRenderer.isAvailable()) { 697 return; 698 } 699 700 // Persistent processes (including the system) should not do 701 // accelerated rendering on low-end devices. In that case, 702 // sRendererDisabled will be set. In addition, the system process 703 // itself should never do accelerated rendering. In that case, both 704 // sRendererDisabled and sSystemRendererDisabled are set. When 705 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 706 // can be used by code on the system process to escape that and enable 707 // HW accelerated drawing. (This is basically for the lock screen.) 708 709 final boolean fakeHwAccelerated = (attrs.privateFlags & 710 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 711 final boolean forceHwAccelerated = (attrs.privateFlags & 712 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 713 714 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 715 && forceHwAccelerated)) { 716 // Don't enable hardware acceleration when we're not on the main thread 717 if (!HardwareRenderer.sSystemRendererDisabled && 718 Looper.getMainLooper() != Looper.myLooper()) { 719 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 720 + "acceleration outside of the main thread, aborting"); 721 return; 722 } 723 724 final boolean renderThread = isRenderThreadRequested(context); 725 if (renderThread) { 726 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 727 } 728 729 if (mAttachInfo.mHardwareRenderer != null) { 730 mAttachInfo.mHardwareRenderer.destroy(true); 731 } 732 733 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 734 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 735 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 736 = mAttachInfo.mHardwareRenderer != null; 737 738 } else if (fakeHwAccelerated) { 739 // The window had wanted to use hardware acceleration, but this 740 // is not allowed in its process. By setting this flag, it can 741 // still render as if it was accelerated. This is basically for 742 // the preview windows the window manager shows for launching 743 // applications, so they will look more like the app being launched. 744 mAttachInfo.mHardwareAccelerationRequested = true; 745 } 746 } 747 } 748 749 public View getView() { 750 return mView; 751 } 752 753 final WindowLeaked getLocation() { 754 return mLocation; 755 } 756 757 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 758 synchronized (this) { 759 int oldSoftInputMode = mWindowAttributes.softInputMode; 760 // Keep track of the actual window flags supplied by the client. 761 mClientWindowLayoutFlags = attrs.flags; 762 // preserve compatible window flag if exists. 763 int compatibleWindowFlag = 764 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 765 // transfer over system UI visibility values as they carry current state. 766 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 767 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 768 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 769 mWindowAttributes.flags |= compatibleWindowFlag; 770 771 applyKeepScreenOnFlag(mWindowAttributes); 772 773 if (newView) { 774 mSoftInputMode = attrs.softInputMode; 775 requestLayout(); 776 } 777 // Don't lose the mode we last auto-computed. 778 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 779 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 780 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 781 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 782 | (oldSoftInputMode 783 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 784 } 785 mWindowAttributesChanged = true; 786 scheduleTraversals(); 787 } 788 } 789 790 void handleAppVisibility(boolean visible) { 791 if (mAppVisible != visible) { 792 mAppVisible = visible; 793 scheduleTraversals(); 794 } 795 } 796 797 void handleGetNewSurface() { 798 mNewSurfaceNeeded = true; 799 mFullRedrawNeeded = true; 800 scheduleTraversals(); 801 } 802 803 void handleScreenStateChange(boolean on) { 804 if (on != mAttachInfo.mScreenOn) { 805 mAttachInfo.mScreenOn = on; 806 if (mView != null) { 807 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 808 } 809 if (on) { 810 mFullRedrawNeeded = true; 811 scheduleTraversals(); 812 } 813 } 814 } 815 816 @Override 817 public void requestFitSystemWindows() { 818 checkThread(); 819 mFitSystemWindowsRequested = true; 820 scheduleTraversals(); 821 } 822 823 @Override 824 public void requestLayout() { 825 checkThread(); 826 mLayoutRequested = true; 827 scheduleTraversals(); 828 } 829 830 @Override 831 public boolean isLayoutRequested() { 832 return mLayoutRequested; 833 } 834 835 void invalidate() { 836 mDirty.set(0, 0, mWidth, mHeight); 837 scheduleTraversals(); 838 } 839 840 void invalidateWorld(View view) { 841 view.invalidate(); 842 if (view instanceof ViewGroup) { 843 ViewGroup parent = (ViewGroup) view; 844 for (int i = 0; i < parent.getChildCount(); i++) { 845 invalidateWorld(parent.getChildAt(i)); 846 } 847 } 848 } 849 850 @Override 851 public void invalidateChild(View child, Rect dirty) { 852 invalidateChildInParent(null, dirty); 853 } 854 855 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 856 checkThread(); 857 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 858 859 if (dirty == null) { 860 invalidate(); 861 return null; 862 } else if (dirty.isEmpty() && !mIsAnimating) { 863 return null; 864 } 865 866 if (mCurScrollY != 0 || mTranslator != null) { 867 mTempRect.set(dirty); 868 dirty = mTempRect; 869 if (mCurScrollY != 0) { 870 dirty.offset(0, -mCurScrollY); 871 } 872 if (mTranslator != null) { 873 mTranslator.translateRectInAppWindowToScreen(dirty); 874 } 875 if (mAttachInfo.mScalingRequired) { 876 dirty.inset(-1, -1); 877 } 878 } 879 880 final Rect localDirty = mDirty; 881 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 882 mAttachInfo.mSetIgnoreDirtyState = true; 883 mAttachInfo.mIgnoreDirtyState = true; 884 } 885 886 // Add the new dirty rect to the current one 887 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 888 // Intersect with the bounds of the window to skip 889 // updates that lie outside of the visible region 890 final float appScale = mAttachInfo.mApplicationScale; 891 final boolean intersected = localDirty.intersect(0, 0, 892 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 893 if (!intersected) { 894 localDirty.setEmpty(); 895 } 896 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 897 scheduleTraversals(); 898 } 899 900 return null; 901 } 902 903 void setStopped(boolean stopped) { 904 if (mStopped != stopped) { 905 mStopped = stopped; 906 if (!stopped) { 907 scheduleTraversals(); 908 } 909 } 910 } 911 912 public ViewParent getParent() { 913 return null; 914 } 915 916 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 917 if (child != mView) { 918 throw new RuntimeException("child is not mine, honest!"); 919 } 920 // Note: don't apply scroll offset, because we want to know its 921 // visibility in the virtual canvas being given to the view hierarchy. 922 return r.intersect(0, 0, mWidth, mHeight); 923 } 924 925 public void bringChildToFront(View child) { 926 } 927 928 int getHostVisibility() { 929 return mAppVisible ? mView.getVisibility() : View.GONE; 930 } 931 932 void disposeResizeBuffer() { 933 if (mResizeBuffer != null) { 934 mResizeBuffer.destroy(); 935 mResizeBuffer = null; 936 } 937 } 938 939 /** 940 * Add LayoutTransition to the list of transitions to be started in the next traversal. 941 * This list will be cleared after the transitions on the list are start()'ed. These 942 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 943 * happens during the layout phase of traversal, which we want to complete before any of the 944 * animations are started (because those animations may side-effect properties that layout 945 * depends upon, like the bounding rectangles of the affected views). So we add the transition 946 * to the list and it is started just prior to starting the drawing phase of traversal. 947 * 948 * @param transition The LayoutTransition to be started on the next traversal. 949 * 950 * @hide 951 */ 952 public void requestTransitionStart(LayoutTransition transition) { 953 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 954 if (mPendingTransitions == null) { 955 mPendingTransitions = new ArrayList<LayoutTransition>(); 956 } 957 mPendingTransitions.add(transition); 958 } 959 } 960 961 void scheduleTraversals() { 962 if (!mTraversalScheduled) { 963 mTraversalScheduled = true; 964 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 965 mChoreographer.postCallback( 966 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 967 scheduleConsumeBatchedInput(); 968 } 969 } 970 971 void unscheduleTraversals() { 972 if (mTraversalScheduled) { 973 mTraversalScheduled = false; 974 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 975 mChoreographer.removeCallbacks( 976 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 977 } 978 } 979 980 void doTraversal() { 981 if (mTraversalScheduled) { 982 mTraversalScheduled = false; 983 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 984 985 if (mProfile) { 986 Debug.startMethodTracing("ViewAncestor"); 987 } 988 989 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 990 try { 991 performTraversals(); 992 } finally { 993 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 994 } 995 996 if (mProfile) { 997 Debug.stopMethodTracing(); 998 mProfile = false; 999 } 1000 } 1001 } 1002 1003 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1004 // Update window's global keep screen on flag: if a view has requested 1005 // that the screen be kept on, then it is always set; otherwise, it is 1006 // set to whatever the client last requested for the global state. 1007 if (mAttachInfo.mKeepScreenOn) { 1008 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1009 } else { 1010 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1011 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1012 } 1013 } 1014 1015 private boolean collectViewAttributes() { 1016 final View.AttachInfo attachInfo = mAttachInfo; 1017 if (attachInfo.mRecomputeGlobalAttributes) { 1018 //Log.i(TAG, "Computing view hierarchy attributes!"); 1019 attachInfo.mRecomputeGlobalAttributes = false; 1020 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1021 attachInfo.mKeepScreenOn = false; 1022 attachInfo.mSystemUiVisibility = 0; 1023 attachInfo.mHasSystemUiListeners = false; 1024 mView.dispatchCollectViewAttributes(attachInfo, 0); 1025 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1026 WindowManager.LayoutParams params = mWindowAttributes; 1027 if (attachInfo.mKeepScreenOn != oldScreenOn 1028 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1029 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1030 applyKeepScreenOnFlag(params); 1031 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1032 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1033 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1034 return true; 1035 } 1036 } 1037 return false; 1038 } 1039 1040 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1041 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1042 int childWidthMeasureSpec; 1043 int childHeightMeasureSpec; 1044 boolean windowSizeMayChange = false; 1045 1046 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1047 "Measuring " + host + " in display " + desiredWindowWidth 1048 + "x" + desiredWindowHeight + "..."); 1049 1050 boolean goodMeasure = false; 1051 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1052 // On large screens, we don't want to allow dialogs to just 1053 // stretch to fill the entire width of the screen to display 1054 // one line of text. First try doing the layout at a smaller 1055 // size to see if it will fit. 1056 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1057 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1058 int baseSize = 0; 1059 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1060 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1061 } 1062 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1063 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1064 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1065 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1066 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1067 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1068 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1069 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1070 goodMeasure = true; 1071 } else { 1072 // Didn't fit in that size... try expanding a bit. 1073 baseSize = (baseSize+desiredWindowWidth)/2; 1074 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1075 + baseSize); 1076 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1077 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1078 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1079 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1080 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1081 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1082 goodMeasure = true; 1083 } 1084 } 1085 } 1086 } 1087 1088 if (!goodMeasure) { 1089 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1090 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1091 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1092 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1093 windowSizeMayChange = true; 1094 } 1095 } 1096 1097 if (DBG) { 1098 System.out.println("======================================"); 1099 System.out.println("performTraversals -- after measure"); 1100 host.debug(); 1101 } 1102 1103 return windowSizeMayChange; 1104 } 1105 1106 private void performTraversals() { 1107 // cache mView since it is used so much below... 1108 final View host = mView; 1109 1110 if (DBG) { 1111 System.out.println("======================================"); 1112 System.out.println("performTraversals"); 1113 host.debug(); 1114 } 1115 1116 if (host == null || !mAdded) 1117 return; 1118 1119 mIsInTraversal = true; 1120 mWillDrawSoon = true; 1121 boolean windowSizeMayChange = false; 1122 boolean newSurface = false; 1123 boolean surfaceChanged = false; 1124 WindowManager.LayoutParams lp = mWindowAttributes; 1125 1126 int desiredWindowWidth; 1127 int desiredWindowHeight; 1128 1129 final View.AttachInfo attachInfo = mAttachInfo; 1130 1131 final int viewVisibility = getHostVisibility(); 1132 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1133 || mNewSurfaceNeeded; 1134 1135 WindowManager.LayoutParams params = null; 1136 if (mWindowAttributesChanged) { 1137 mWindowAttributesChanged = false; 1138 surfaceChanged = true; 1139 params = lp; 1140 } 1141 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1142 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1143 params = lp; 1144 mFullRedrawNeeded = true; 1145 mLayoutRequested = true; 1146 if (mLastInCompatMode) { 1147 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1148 mLastInCompatMode = false; 1149 } else { 1150 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1151 mLastInCompatMode = true; 1152 } 1153 } 1154 1155 mWindowAttributesChangesFlag = 0; 1156 1157 Rect frame = mWinFrame; 1158 if (mFirst) { 1159 mFullRedrawNeeded = true; 1160 mLayoutRequested = true; 1161 1162 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1163 // NOTE -- system code, won't try to do compat mode. 1164 Point size = new Point(); 1165 mDisplay.getRealSize(size); 1166 desiredWindowWidth = size.x; 1167 desiredWindowHeight = size.y; 1168 } else { 1169 DisplayMetrics packageMetrics = 1170 mView.getContext().getResources().getDisplayMetrics(); 1171 desiredWindowWidth = packageMetrics.widthPixels; 1172 desiredWindowHeight = packageMetrics.heightPixels; 1173 } 1174 1175 // For the very first time, tell the view hierarchy that it 1176 // is attached to the window. Note that at this point the surface 1177 // object is not initialized to its backing store, but soon it 1178 // will be (assuming the window is visible). 1179 attachInfo.mSurface = mSurface; 1180 // We used to use the following condition to choose 32 bits drawing caches: 1181 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1182 // However, windows are now always 32 bits by default, so choose 32 bits 1183 attachInfo.mUse32BitDrawingCache = true; 1184 attachInfo.mHasWindowFocus = false; 1185 attachInfo.mWindowVisibility = viewVisibility; 1186 attachInfo.mRecomputeGlobalAttributes = false; 1187 viewVisibilityChanged = false; 1188 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1189 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1190 // Set the layout direction if it has not been set before (inherit is the default) 1191 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1192 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1193 } 1194 host.dispatchAttachedToWindow(attachInfo, 0); 1195 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1196 host.fitSystemWindows(mFitSystemWindowsInsets); 1197 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1198 1199 } else { 1200 desiredWindowWidth = frame.width(); 1201 desiredWindowHeight = frame.height(); 1202 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1203 if (DEBUG_ORIENTATION) Log.v(TAG, 1204 "View " + host + " resized to: " + frame); 1205 mFullRedrawNeeded = true; 1206 mLayoutRequested = true; 1207 windowSizeMayChange = true; 1208 } 1209 } 1210 1211 if (viewVisibilityChanged) { 1212 attachInfo.mWindowVisibility = viewVisibility; 1213 host.dispatchWindowVisibilityChanged(viewVisibility); 1214 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1215 destroyHardwareResources(); 1216 } 1217 if (viewVisibility == View.GONE) { 1218 // After making a window gone, we will count it as being 1219 // shown for the first time the next time it gets focus. 1220 mHasHadWindowFocus = false; 1221 } 1222 } 1223 1224 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1225 getRunQueue().executeActions(attachInfo.mHandler); 1226 1227 boolean insetsChanged = false; 1228 1229 boolean layoutRequested = mLayoutRequested && !mStopped; 1230 if (layoutRequested) { 1231 1232 final Resources res = mView.getContext().getResources(); 1233 1234 if (mFirst) { 1235 // make sure touch mode code executes by setting cached value 1236 // to opposite of the added touch mode. 1237 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1238 ensureTouchModeLocally(mAddedTouchMode); 1239 } else { 1240 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1241 insetsChanged = true; 1242 } 1243 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1244 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1245 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1246 + mAttachInfo.mVisibleInsets); 1247 } 1248 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1249 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1250 windowSizeMayChange = true; 1251 1252 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1253 // NOTE -- system code, won't try to do compat mode. 1254 Point size = new Point(); 1255 mDisplay.getRealSize(size); 1256 desiredWindowWidth = size.x; 1257 desiredWindowHeight = size.y; 1258 } else { 1259 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1260 desiredWindowWidth = packageMetrics.widthPixels; 1261 desiredWindowHeight = packageMetrics.heightPixels; 1262 } 1263 } 1264 } 1265 1266 // Ask host how big it wants to be 1267 windowSizeMayChange |= measureHierarchy(host, lp, res, 1268 desiredWindowWidth, desiredWindowHeight); 1269 } 1270 1271 if (collectViewAttributes()) { 1272 params = lp; 1273 } 1274 if (attachInfo.mForceReportNewAttributes) { 1275 attachInfo.mForceReportNewAttributes = false; 1276 params = lp; 1277 } 1278 1279 if (mFirst || attachInfo.mViewVisibilityChanged) { 1280 attachInfo.mViewVisibilityChanged = false; 1281 int resizeMode = mSoftInputMode & 1282 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1283 // If we are in auto resize mode, then we need to determine 1284 // what mode to use now. 1285 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1286 final int N = attachInfo.mScrollContainers.size(); 1287 for (int i=0; i<N; i++) { 1288 if (attachInfo.mScrollContainers.get(i).isShown()) { 1289 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1290 } 1291 } 1292 if (resizeMode == 0) { 1293 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1294 } 1295 if ((lp.softInputMode & 1296 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1297 lp.softInputMode = (lp.softInputMode & 1298 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1299 resizeMode; 1300 params = lp; 1301 } 1302 } 1303 } 1304 1305 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1306 if (!PixelFormat.formatHasAlpha(params.format)) { 1307 params.format = PixelFormat.TRANSLUCENT; 1308 } 1309 } 1310 1311 if (mFitSystemWindowsRequested) { 1312 mFitSystemWindowsRequested = false; 1313 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1314 host.fitSystemWindows(mFitSystemWindowsInsets); 1315 if (mLayoutRequested) { 1316 // Short-circuit catching a new layout request here, so 1317 // we don't need to go through two layout passes when things 1318 // change due to fitting system windows, which can happen a lot. 1319 windowSizeMayChange |= measureHierarchy(host, lp, 1320 mView.getContext().getResources(), 1321 desiredWindowWidth, desiredWindowHeight); 1322 } 1323 } 1324 1325 if (layoutRequested) { 1326 // Clear this now, so that if anything requests a layout in the 1327 // rest of this function we will catch it and re-run a full 1328 // layout pass. 1329 mLayoutRequested = false; 1330 } 1331 1332 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1333 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1334 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1335 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1336 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1337 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1338 1339 final boolean computesInternalInsets = 1340 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1341 1342 boolean insetsPending = false; 1343 int relayoutResult = 0; 1344 1345 if (mFirst || windowShouldResize || insetsChanged || 1346 viewVisibilityChanged || params != null) { 1347 1348 if (viewVisibility == View.VISIBLE) { 1349 // If this window is giving internal insets to the window 1350 // manager, and it is being added or changing its visibility, 1351 // then we want to first give the window manager "fake" 1352 // insets to cause it to effectively ignore the content of 1353 // the window during layout. This avoids it briefly causing 1354 // other windows to resize/move based on the raw frame of the 1355 // window, waiting until we can finish laying out this window 1356 // and get back to the window manager with the ultimately 1357 // computed insets. 1358 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1359 } 1360 1361 if (mSurfaceHolder != null) { 1362 mSurfaceHolder.mSurfaceLock.lock(); 1363 mDrawingAllowed = true; 1364 } 1365 1366 boolean hwInitialized = false; 1367 boolean contentInsetsChanged = false; 1368 boolean visibleInsetsChanged; 1369 boolean hadSurface = mSurface.isValid(); 1370 1371 try { 1372 if (DEBUG_LAYOUT) { 1373 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1374 host.getMeasuredHeight() + ", params=" + params); 1375 } 1376 1377 final int surfaceGenerationId = mSurface.getGenerationId(); 1378 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1379 1380 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1381 + " content=" + mPendingContentInsets.toShortString() 1382 + " visible=" + mPendingVisibleInsets.toShortString() 1383 + " surface=" + mSurface); 1384 1385 if (mPendingConfiguration.seq != 0) { 1386 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1387 + mPendingConfiguration); 1388 updateConfiguration(mPendingConfiguration, !mFirst); 1389 mPendingConfiguration.seq = 0; 1390 } 1391 1392 contentInsetsChanged = !mPendingContentInsets.equals( 1393 mAttachInfo.mContentInsets); 1394 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1395 mAttachInfo.mVisibleInsets); 1396 if (contentInsetsChanged) { 1397 if (mWidth > 0 && mHeight > 0 && lp != null && 1398 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1399 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1400 mSurface != null && mSurface.isValid() && 1401 !mAttachInfo.mTurnOffWindowResizeAnim && 1402 mAttachInfo.mHardwareRenderer != null && 1403 mAttachInfo.mHardwareRenderer.isEnabled() && 1404 mAttachInfo.mHardwareRenderer.validate() && 1405 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1406 1407 disposeResizeBuffer(); 1408 1409 boolean completed = false; 1410 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1411 HardwareCanvas layerCanvas = null; 1412 try { 1413 if (mResizeBuffer == null) { 1414 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1415 mWidth, mHeight, false); 1416 } else if (mResizeBuffer.getWidth() != mWidth || 1417 mResizeBuffer.getHeight() != mHeight) { 1418 mResizeBuffer.resize(mWidth, mHeight); 1419 } 1420 // TODO: should handle create/resize failure 1421 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1422 layerCanvas.setViewport(mWidth, mHeight); 1423 layerCanvas.onPreDraw(null); 1424 final int restoreCount = layerCanvas.save(); 1425 1426 int yoff; 1427 final boolean scrolling = mScroller != null 1428 && mScroller.computeScrollOffset(); 1429 if (scrolling) { 1430 yoff = mScroller.getCurrY(); 1431 mScroller.abortAnimation(); 1432 } else { 1433 yoff = mScrollY; 1434 } 1435 1436 layerCanvas.translate(0, -yoff); 1437 if (mTranslator != null) { 1438 mTranslator.translateCanvas(layerCanvas); 1439 } 1440 1441 DisplayList displayList = mView.mDisplayList; 1442 if (displayList != null) { 1443 layerCanvas.drawDisplayList(displayList, null, 1444 DisplayList.FLAG_CLIP_CHILDREN); 1445 } else { 1446 mView.draw(layerCanvas); 1447 } 1448 1449 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1450 1451 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1452 mResizeBufferDuration = mView.getResources().getInteger( 1453 com.android.internal.R.integer.config_mediumAnimTime); 1454 completed = true; 1455 1456 layerCanvas.restoreToCount(restoreCount); 1457 } catch (OutOfMemoryError e) { 1458 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1459 } finally { 1460 if (layerCanvas != null) { 1461 layerCanvas.onPostDraw(); 1462 } 1463 if (mResizeBuffer != null) { 1464 mResizeBuffer.end(hwRendererCanvas); 1465 if (!completed) { 1466 mResizeBuffer.destroy(); 1467 mResizeBuffer = null; 1468 } 1469 } 1470 } 1471 } 1472 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1473 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1474 + mAttachInfo.mContentInsets); 1475 } 1476 if (contentInsetsChanged || mLastSystemUiVisibility != 1477 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1478 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1479 mFitSystemWindowsRequested = false; 1480 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1481 host.fitSystemWindows(mFitSystemWindowsInsets); 1482 } 1483 if (visibleInsetsChanged) { 1484 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1485 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1486 + mAttachInfo.mVisibleInsets); 1487 } 1488 1489 if (!hadSurface) { 1490 if (mSurface.isValid()) { 1491 // If we are creating a new surface, then we need to 1492 // completely redraw it. Also, when we get to the 1493 // point of drawing it we will hold off and schedule 1494 // a new traversal instead. This is so we can tell the 1495 // window manager about all of the windows being displayed 1496 // before actually drawing them, so it can display then 1497 // all at once. 1498 newSurface = true; 1499 mFullRedrawNeeded = true; 1500 mPreviousTransparentRegion.setEmpty(); 1501 1502 if (mAttachInfo.mHardwareRenderer != null) { 1503 try { 1504 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1505 mHolder.getSurface()); 1506 } catch (Surface.OutOfResourcesException e) { 1507 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1508 try { 1509 if (!mWindowSession.outOfMemory(mWindow) && 1510 Process.myUid() != Process.SYSTEM_UID) { 1511 Slog.w(TAG, "No processes killed for memory; killing self"); 1512 Process.killProcess(Process.myPid()); 1513 } 1514 } catch (RemoteException ex) { 1515 } 1516 mLayoutRequested = true; // ask wm for a new surface next time. 1517 return; 1518 } 1519 } 1520 } 1521 } else if (!mSurface.isValid()) { 1522 // If the surface has been removed, then reset the scroll 1523 // positions. 1524 mLastScrolledFocus = null; 1525 mScrollY = mCurScrollY = 0; 1526 if (mScroller != null) { 1527 mScroller.abortAnimation(); 1528 } 1529 disposeResizeBuffer(); 1530 // Our surface is gone 1531 if (mAttachInfo.mHardwareRenderer != null && 1532 mAttachInfo.mHardwareRenderer.isEnabled()) { 1533 mAttachInfo.mHardwareRenderer.destroy(true); 1534 } 1535 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1536 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1537 mFullRedrawNeeded = true; 1538 try { 1539 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1540 } catch (Surface.OutOfResourcesException e) { 1541 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1542 try { 1543 if (!mWindowSession.outOfMemory(mWindow)) { 1544 Slog.w(TAG, "No processes killed for memory; killing self"); 1545 Process.killProcess(Process.myPid()); 1546 } 1547 } catch (RemoteException ex) { 1548 } 1549 mLayoutRequested = true; // ask wm for a new surface next time. 1550 return; 1551 } 1552 } 1553 } catch (RemoteException e) { 1554 } 1555 1556 if (DEBUG_ORIENTATION) Log.v( 1557 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1558 1559 attachInfo.mWindowLeft = frame.left; 1560 attachInfo.mWindowTop = frame.top; 1561 1562 // !!FIXME!! This next section handles the case where we did not get the 1563 // window size we asked for. We should avoid this by getting a maximum size from 1564 // the window session beforehand. 1565 if (mWidth != frame.width() || mHeight != frame.height()) { 1566 mWidth = frame.width(); 1567 mHeight = frame.height(); 1568 } 1569 1570 if (mSurfaceHolder != null) { 1571 // The app owns the surface; tell it about what is going on. 1572 if (mSurface.isValid()) { 1573 // XXX .copyFrom() doesn't work! 1574 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1575 mSurfaceHolder.mSurface = mSurface; 1576 } 1577 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1578 mSurfaceHolder.mSurfaceLock.unlock(); 1579 if (mSurface.isValid()) { 1580 if (!hadSurface) { 1581 mSurfaceHolder.ungetCallbacks(); 1582 1583 mIsCreating = true; 1584 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1585 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1586 if (callbacks != null) { 1587 for (SurfaceHolder.Callback c : callbacks) { 1588 c.surfaceCreated(mSurfaceHolder); 1589 } 1590 } 1591 surfaceChanged = true; 1592 } 1593 if (surfaceChanged) { 1594 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1595 lp.format, mWidth, mHeight); 1596 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1597 if (callbacks != null) { 1598 for (SurfaceHolder.Callback c : callbacks) { 1599 c.surfaceChanged(mSurfaceHolder, lp.format, 1600 mWidth, mHeight); 1601 } 1602 } 1603 } 1604 mIsCreating = false; 1605 } else if (hadSurface) { 1606 mSurfaceHolder.ungetCallbacks(); 1607 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1608 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1609 if (callbacks != null) { 1610 for (SurfaceHolder.Callback c : callbacks) { 1611 c.surfaceDestroyed(mSurfaceHolder); 1612 } 1613 } 1614 mSurfaceHolder.mSurfaceLock.lock(); 1615 try { 1616 mSurfaceHolder.mSurface = new Surface(); 1617 } finally { 1618 mSurfaceHolder.mSurfaceLock.unlock(); 1619 } 1620 } 1621 } 1622 1623 if (mAttachInfo.mHardwareRenderer != null && 1624 mAttachInfo.mHardwareRenderer.isEnabled()) { 1625 if (hwInitialized || windowShouldResize || 1626 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1627 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1628 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1629 if (!hwInitialized) { 1630 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1631 mFullRedrawNeeded = true; 1632 } 1633 } 1634 } 1635 1636 if (!mStopped) { 1637 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1638 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1639 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1640 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1641 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1642 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1643 1644 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1645 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1646 + " mHeight=" + mHeight 1647 + " measuredHeight=" + host.getMeasuredHeight() 1648 + " coveredInsetsChanged=" + contentInsetsChanged); 1649 1650 // Ask host how big it wants to be 1651 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1652 1653 // Implementation of weights from WindowManager.LayoutParams 1654 // We just grow the dimensions as needed and re-measure if 1655 // needs be 1656 int width = host.getMeasuredWidth(); 1657 int height = host.getMeasuredHeight(); 1658 boolean measureAgain = false; 1659 1660 if (lp.horizontalWeight > 0.0f) { 1661 width += (int) ((mWidth - width) * lp.horizontalWeight); 1662 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1663 MeasureSpec.EXACTLY); 1664 measureAgain = true; 1665 } 1666 if (lp.verticalWeight > 0.0f) { 1667 height += (int) ((mHeight - height) * lp.verticalWeight); 1668 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1669 MeasureSpec.EXACTLY); 1670 measureAgain = true; 1671 } 1672 1673 if (measureAgain) { 1674 if (DEBUG_LAYOUT) Log.v(TAG, 1675 "And hey let's measure once more: width=" + width 1676 + " height=" + height); 1677 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1678 } 1679 1680 layoutRequested = true; 1681 } 1682 } 1683 } else { 1684 // Not the first pass and no window/insets/visibility change but the window 1685 // may have moved and we need check that and if so to update the left and right 1686 // in the attach info. We translate only the window frame since on window move 1687 // the window manager tells us only for the new frame but the insets are the 1688 // same and we do not want to translate them more than once. 1689 1690 // TODO: Well, we are checking whether the frame has changed similarly 1691 // to how this is done for the insets. This is however incorrect since 1692 // the insets and the frame are translated. For example, the old frame 1693 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1694 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1695 // true since we are comparing a not translated value to a translated one. 1696 // This scenario is rare but we may want to fix that. 1697 1698 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1699 || attachInfo.mWindowTop != frame.top); 1700 if (windowMoved) { 1701 if (mTranslator != null) { 1702 mTranslator.translateRectInScreenToAppWinFrame(frame); 1703 } 1704 attachInfo.mWindowLeft = frame.left; 1705 attachInfo.mWindowTop = frame.top; 1706 } 1707 } 1708 1709 final boolean didLayout = layoutRequested && !mStopped; 1710 boolean triggerGlobalLayoutListener = didLayout 1711 || attachInfo.mRecomputeGlobalAttributes; 1712 if (didLayout) { 1713 performLayout(); 1714 1715 // By this point all views have been sized and positionned 1716 // We can compute the transparent area 1717 1718 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1719 // start out transparent 1720 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1721 host.getLocationInWindow(mTmpLocation); 1722 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1723 mTmpLocation[0] + host.mRight - host.mLeft, 1724 mTmpLocation[1] + host.mBottom - host.mTop); 1725 1726 host.gatherTransparentRegion(mTransparentRegion); 1727 if (mTranslator != null) { 1728 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1729 } 1730 1731 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1732 mPreviousTransparentRegion.set(mTransparentRegion); 1733 // reconfigure window manager 1734 try { 1735 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1736 } catch (RemoteException e) { 1737 } 1738 } 1739 } 1740 1741 if (DBG) { 1742 System.out.println("======================================"); 1743 System.out.println("performTraversals -- after setFrame"); 1744 host.debug(); 1745 } 1746 } 1747 1748 if (triggerGlobalLayoutListener) { 1749 attachInfo.mRecomputeGlobalAttributes = false; 1750 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1751 1752 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1753 postSendWindowContentChangedCallback(mView); 1754 } 1755 } 1756 1757 if (computesInternalInsets) { 1758 // Clear the original insets. 1759 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1760 insets.reset(); 1761 1762 // Compute new insets in place. 1763 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1764 1765 // Tell the window manager. 1766 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1767 mLastGivenInsets.set(insets); 1768 1769 // Translate insets to screen coordinates if needed. 1770 final Rect contentInsets; 1771 final Rect visibleInsets; 1772 final Region touchableRegion; 1773 if (mTranslator != null) { 1774 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1775 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1776 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1777 } else { 1778 contentInsets = insets.contentInsets; 1779 visibleInsets = insets.visibleInsets; 1780 touchableRegion = insets.touchableRegion; 1781 } 1782 1783 try { 1784 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1785 contentInsets, visibleInsets, touchableRegion); 1786 } catch (RemoteException e) { 1787 } 1788 } 1789 } 1790 1791 boolean skipDraw = false; 1792 1793 if (mFirst) { 1794 // handle first focus request 1795 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1796 + mView.hasFocus()); 1797 if (mView != null) { 1798 if (!mView.hasFocus()) { 1799 mView.requestFocus(View.FOCUS_FORWARD); 1800 mFocusedView = mRealFocusedView = mView.findFocus(); 1801 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1802 + mFocusedView); 1803 } else { 1804 mRealFocusedView = mView.findFocus(); 1805 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1806 + mRealFocusedView); 1807 } 1808 } 1809 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1810 // The first time we relayout the window, if the system is 1811 // doing window animations, we want to hold of on any future 1812 // draws until the animation is done. 1813 mWindowsAnimating = true; 1814 } 1815 } else if (mWindowsAnimating) { 1816 skipDraw = true; 1817 } 1818 1819 mFirst = false; 1820 mWillDrawSoon = false; 1821 mNewSurfaceNeeded = false; 1822 mViewVisibility = viewVisibility; 1823 1824 if (mAttachInfo.mHasWindowFocus) { 1825 final boolean imTarget = WindowManager.LayoutParams 1826 .mayUseInputMethod(mWindowAttributes.flags); 1827 if (imTarget != mLastWasImTarget) { 1828 mLastWasImTarget = imTarget; 1829 InputMethodManager imm = InputMethodManager.peekInstance(); 1830 if (imm != null && imTarget) { 1831 imm.startGettingWindowFocus(mView); 1832 imm.onWindowFocus(mView, mView.findFocus(), 1833 mWindowAttributes.softInputMode, 1834 !mHasHadWindowFocus, mWindowAttributes.flags); 1835 } 1836 } 1837 } 1838 1839 // Remember if we must report the next draw. 1840 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1841 mReportNextDraw = true; 1842 } 1843 1844 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1845 viewVisibility != View.VISIBLE; 1846 1847 if (!cancelDraw && !newSurface) { 1848 if (!skipDraw || mReportNextDraw) { 1849 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1850 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1851 mPendingTransitions.get(i).startChangingAnimations(); 1852 } 1853 mPendingTransitions.clear(); 1854 } 1855 1856 performDraw(); 1857 } 1858 } else { 1859 if (viewVisibility == View.VISIBLE) { 1860 // Try again 1861 scheduleTraversals(); 1862 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1863 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1864 mPendingTransitions.get(i).endChangingAnimations(); 1865 } 1866 mPendingTransitions.clear(); 1867 } 1868 } 1869 1870 mIsInTraversal = false; 1871 } 1872 1873 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1874 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1875 try { 1876 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1877 } finally { 1878 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1879 } 1880 } 1881 1882 private void performLayout() { 1883 mLayoutRequested = false; 1884 mScrollMayChange = true; 1885 1886 final View host = mView; 1887 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1888 Log.v(TAG, "Laying out " + host + " to (" + 1889 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1890 } 1891 1892 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1893 try { 1894 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1895 } finally { 1896 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1897 } 1898 } 1899 1900 public void requestTransparentRegion(View child) { 1901 // the test below should not fail unless someone is messing with us 1902 checkThread(); 1903 if (mView == child) { 1904 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1905 // Need to make sure we re-evaluate the window attributes next 1906 // time around, to ensure the window has the correct format. 1907 mWindowAttributesChanged = true; 1908 mWindowAttributesChangesFlag = 0; 1909 requestLayout(); 1910 } 1911 } 1912 1913 /** 1914 * Figures out the measure spec for the root view in a window based on it's 1915 * layout params. 1916 * 1917 * @param windowSize 1918 * The available width or height of the window 1919 * 1920 * @param rootDimension 1921 * The layout params for one dimension (width or height) of the 1922 * window. 1923 * 1924 * @return The measure spec to use to measure the root view. 1925 */ 1926 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1927 int measureSpec; 1928 switch (rootDimension) { 1929 1930 case ViewGroup.LayoutParams.MATCH_PARENT: 1931 // Window can't resize. Force root view to be windowSize. 1932 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1933 break; 1934 case ViewGroup.LayoutParams.WRAP_CONTENT: 1935 // Window can resize. Set max size for root view. 1936 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1937 break; 1938 default: 1939 // Window wants to be an exact size. Force root view to be that size. 1940 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1941 break; 1942 } 1943 return measureSpec; 1944 } 1945 1946 int mHardwareYOffset; 1947 int mResizeAlpha; 1948 final Paint mResizePaint = new Paint(); 1949 1950 public void onHardwarePreDraw(HardwareCanvas canvas) { 1951 canvas.translate(0, -mHardwareYOffset); 1952 } 1953 1954 public void onHardwarePostDraw(HardwareCanvas canvas) { 1955 if (mResizeBuffer != null) { 1956 mResizePaint.setAlpha(mResizeAlpha); 1957 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1958 } 1959 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1960 } 1961 1962 /** 1963 * @hide 1964 */ 1965 void outputDisplayList(View view) { 1966 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1967 DisplayList displayList = view.getDisplayList(); 1968 if (displayList != null) { 1969 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1970 } 1971 } 1972 } 1973 1974 /** 1975 * @see #PROPERTY_PROFILE_RENDERING 1976 */ 1977 private void profileRendering(boolean enabled) { 1978 if (mProfileRendering) { 1979 mRenderProfilingEnabled = enabled; 1980 if (mRenderProfiler == null) { 1981 mRenderProfiler = new Thread(new Runnable() { 1982 @Override 1983 public void run() { 1984 Log.d(TAG, "Starting profiling thread"); 1985 while (mRenderProfilingEnabled) { 1986 mAttachInfo.mHandler.post(new Runnable() { 1987 @Override 1988 public void run() { 1989 mDirty.set(0, 0, mWidth, mHeight); 1990 scheduleTraversals(); 1991 } 1992 }); 1993 try { 1994 // TODO: This should use vsync when we get an API 1995 Thread.sleep(15); 1996 } catch (InterruptedException e) { 1997 Log.d(TAG, "Exiting profiling thread"); 1998 } 1999 } 2000 } 2001 }, "Rendering Profiler"); 2002 mRenderProfiler.start(); 2003 } else { 2004 mRenderProfiler.interrupt(); 2005 mRenderProfiler = null; 2006 } 2007 } 2008 } 2009 2010 /** 2011 * Called from draw() when DEBUG_FPS is enabled 2012 */ 2013 private void trackFPS() { 2014 // Tracks frames per second drawn. First value in a series of draws may be bogus 2015 // because it down not account for the intervening idle time 2016 long nowTime = System.currentTimeMillis(); 2017 if (mFpsStartTime < 0) { 2018 mFpsStartTime = mFpsPrevTime = nowTime; 2019 mFpsNumFrames = 0; 2020 } else { 2021 ++mFpsNumFrames; 2022 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2023 long frameTime = nowTime - mFpsPrevTime; 2024 long totalTime = nowTime - mFpsStartTime; 2025 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2026 mFpsPrevTime = nowTime; 2027 if (totalTime > 1000) { 2028 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2029 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2030 mFpsStartTime = nowTime; 2031 mFpsNumFrames = 0; 2032 } 2033 } 2034 } 2035 2036 private void performDraw() { 2037 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2038 return; 2039 } 2040 2041 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2042 mFullRedrawNeeded = false; 2043 2044 mIsDrawing = true; 2045 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2046 try { 2047 draw(fullRedrawNeeded); 2048 } finally { 2049 mIsDrawing = false; 2050 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2051 } 2052 2053 if (mReportNextDraw) { 2054 mReportNextDraw = false; 2055 2056 if (LOCAL_LOGV) { 2057 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2058 } 2059 if (mSurfaceHolder != null && mSurface.isValid()) { 2060 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2061 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2062 if (callbacks != null) { 2063 for (SurfaceHolder.Callback c : callbacks) { 2064 if (c instanceof SurfaceHolder.Callback2) { 2065 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2066 mSurfaceHolder); 2067 } 2068 } 2069 } 2070 } 2071 try { 2072 mWindowSession.finishDrawing(mWindow); 2073 } catch (RemoteException e) { 2074 } 2075 } 2076 } 2077 2078 private void draw(boolean fullRedrawNeeded) { 2079 Surface surface = mSurface; 2080 if (surface == null || !surface.isValid()) { 2081 return; 2082 } 2083 2084 if (DEBUG_FPS) { 2085 trackFPS(); 2086 } 2087 2088 if (!sFirstDrawComplete) { 2089 synchronized (sFirstDrawHandlers) { 2090 sFirstDrawComplete = true; 2091 final int count = sFirstDrawHandlers.size(); 2092 for (int i = 0; i< count; i++) { 2093 mHandler.post(sFirstDrawHandlers.get(i)); 2094 } 2095 } 2096 } 2097 2098 scrollToRectOrFocus(null, false); 2099 2100 final AttachInfo attachInfo = mAttachInfo; 2101 if (attachInfo.mViewScrollChanged) { 2102 attachInfo.mViewScrollChanged = false; 2103 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2104 } 2105 2106 int yoff; 2107 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2108 if (animating) { 2109 yoff = mScroller.getCurrY(); 2110 } else { 2111 yoff = mScrollY; 2112 } 2113 if (mCurScrollY != yoff) { 2114 mCurScrollY = yoff; 2115 fullRedrawNeeded = true; 2116 } 2117 2118 final float appScale = attachInfo.mApplicationScale; 2119 final boolean scalingRequired = attachInfo.mScalingRequired; 2120 2121 int resizeAlpha = 0; 2122 if (mResizeBuffer != null) { 2123 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2124 if (deltaTime < mResizeBufferDuration) { 2125 float amt = deltaTime/(float) mResizeBufferDuration; 2126 amt = mResizeInterpolator.getInterpolation(amt); 2127 animating = true; 2128 resizeAlpha = 255 - (int)(amt*255); 2129 } else { 2130 disposeResizeBuffer(); 2131 } 2132 } 2133 2134 final Rect dirty = mDirty; 2135 if (mSurfaceHolder != null) { 2136 // The app owns the surface, we won't draw. 2137 dirty.setEmpty(); 2138 if (animating) { 2139 if (mScroller != null) { 2140 mScroller.abortAnimation(); 2141 } 2142 disposeResizeBuffer(); 2143 } 2144 return; 2145 } 2146 2147 if (fullRedrawNeeded) { 2148 attachInfo.mIgnoreDirtyState = true; 2149 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2150 } 2151 2152 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2153 Log.v(TAG, "Draw " + mView + "/" 2154 + mWindowAttributes.getTitle() 2155 + ": dirty={" + dirty.left + "," + dirty.top 2156 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2157 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2158 appScale + ", width=" + mWidth + ", height=" + mHeight); 2159 } 2160 2161 attachInfo.mTreeObserver.dispatchOnDraw(); 2162 2163 if (!dirty.isEmpty() || mIsAnimating) { 2164 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2165 // Draw with hardware renderer. 2166 mIsAnimating = false; 2167 mHardwareYOffset = yoff; 2168 mResizeAlpha = resizeAlpha; 2169 2170 mCurrentDirty.set(dirty); 2171 mCurrentDirty.union(mPreviousDirty); 2172 mPreviousDirty.set(dirty); 2173 dirty.setEmpty(); 2174 2175 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2176 animating ? null : mCurrentDirty)) { 2177 mPreviousDirty.set(0, 0, mWidth, mHeight); 2178 } 2179 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2180 return; 2181 } 2182 } 2183 2184 if (animating) { 2185 mFullRedrawNeeded = true; 2186 scheduleTraversals(); 2187 } 2188 } 2189 2190 /** 2191 * @return true if drawing was succesfull, false if an error occurred 2192 */ 2193 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2194 boolean scalingRequired, Rect dirty) { 2195 2196 // If we get here with a disabled & requested hardware renderer, something went 2197 // wrong (an invalidate posted right before we destroyed the hardware surface 2198 // for instance) so we should just bail out. Locking the surface with software 2199 // rendering at this point would lock it forever and prevent hardware renderer 2200 // from doing its job when it comes back. 2201 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2202 attachInfo.mHardwareRenderer.isRequested()) { 2203 mFullRedrawNeeded = true; 2204 scheduleTraversals(); 2205 return false; 2206 } 2207 2208 // Draw with software renderer. 2209 Canvas canvas; 2210 try { 2211 int left = dirty.left; 2212 int top = dirty.top; 2213 int right = dirty.right; 2214 int bottom = dirty.bottom; 2215 2216 canvas = mSurface.lockCanvas(dirty); 2217 2218 if (left != dirty.left || top != dirty.top || right != dirty.right || 2219 bottom != dirty.bottom) { 2220 attachInfo.mIgnoreDirtyState = true; 2221 } 2222 2223 // TODO: Do this in native 2224 canvas.setDensity(mDensity); 2225 } catch (Surface.OutOfResourcesException e) { 2226 Log.e(TAG, "OutOfResourcesException locking surface", e); 2227 try { 2228 if (!mWindowSession.outOfMemory(mWindow)) { 2229 Slog.w(TAG, "No processes killed for memory; killing self"); 2230 Process.killProcess(Process.myPid()); 2231 } 2232 } catch (RemoteException ex) { 2233 } 2234 mLayoutRequested = true; // ask wm for a new surface next time. 2235 return false; 2236 } catch (IllegalArgumentException e) { 2237 Log.e(TAG, "Could not lock surface", e); 2238 // Don't assume this is due to out of memory, it could be 2239 // something else, and if it is something else then we could 2240 // kill stuff (or ourself) for no reason. 2241 mLayoutRequested = true; // ask wm for a new surface next time. 2242 return false; 2243 } 2244 2245 try { 2246 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2247 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2248 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2249 //canvas.drawARGB(255, 255, 0, 0); 2250 } 2251 2252 // If this bitmap's format includes an alpha channel, we 2253 // need to clear it before drawing so that the child will 2254 // properly re-composite its drawing on a transparent 2255 // background. This automatically respects the clip/dirty region 2256 // or 2257 // If we are applying an offset, we need to clear the area 2258 // where the offset doesn't appear to avoid having garbage 2259 // left in the blank areas. 2260 if (!canvas.isOpaque() || yoff != 0) { 2261 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2262 } 2263 2264 dirty.setEmpty(); 2265 mIsAnimating = false; 2266 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2267 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2268 2269 if (DEBUG_DRAW) { 2270 Context cxt = mView.getContext(); 2271 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2272 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2273 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2274 } 2275 try { 2276 canvas.translate(0, -yoff); 2277 if (mTranslator != null) { 2278 mTranslator.translateCanvas(canvas); 2279 } 2280 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2281 attachInfo.mSetIgnoreDirtyState = false; 2282 2283 mView.draw(canvas); 2284 2285 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2286 } finally { 2287 if (!attachInfo.mSetIgnoreDirtyState) { 2288 // Only clear the flag if it was not set during the mView.draw() call 2289 attachInfo.mIgnoreDirtyState = false; 2290 } 2291 } 2292 } finally { 2293 try { 2294 surface.unlockCanvasAndPost(canvas); 2295 } catch (IllegalArgumentException e) { 2296 Log.e(TAG, "Could not unlock surface", e); 2297 mLayoutRequested = true; // ask wm for a new surface next time. 2298 //noinspection ReturnInsideFinallyBlock 2299 return false; 2300 } 2301 2302 if (LOCAL_LOGV) { 2303 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2304 } 2305 } 2306 return true; 2307 } 2308 2309 /** 2310 * We want to draw a highlight around the current accessibility focused. 2311 * Since adding a style for all possible view is not a viable option we 2312 * have this specialized drawing method. 2313 * 2314 * Note: We are doing this here to be able to draw the highlight for 2315 * virtual views in addition to real ones. 2316 * 2317 * @param canvas The canvas on which to draw. 2318 */ 2319 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2320 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2321 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2322 return; 2323 } 2324 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2325 return; 2326 } 2327 Drawable drawable = getAccessibilityFocusedDrawable(); 2328 if (drawable == null) { 2329 return; 2330 } 2331 AccessibilityNodeProvider provider = 2332 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2333 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2334 if (provider == null) { 2335 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2336 } else { 2337 if (mAccessibilityFocusedVirtualView == null) { 2338 return; 2339 } 2340 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2341 } 2342 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2343 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2344 drawable.setBounds(bounds); 2345 drawable.draw(canvas); 2346 } 2347 2348 private Drawable getAccessibilityFocusedDrawable() { 2349 if (mAttachInfo != null) { 2350 // Lazily load the accessibility focus drawable. 2351 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2352 TypedValue value = new TypedValue(); 2353 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2354 R.attr.accessibilityFocusedDrawable, value, true); 2355 if (resolved) { 2356 mAttachInfo.mAccessibilityFocusDrawable = 2357 mView.mContext.getResources().getDrawable(value.resourceId); 2358 } 2359 } 2360 return mAttachInfo.mAccessibilityFocusDrawable; 2361 } 2362 return null; 2363 } 2364 2365 void invalidateDisplayLists() { 2366 final ArrayList<DisplayList> displayLists = mDisplayLists; 2367 final int count = displayLists.size(); 2368 2369 for (int i = 0; i < count; i++) { 2370 final DisplayList displayList = displayLists.get(i); 2371 displayList.invalidate(); 2372 displayList.clear(); 2373 } 2374 2375 displayLists.clear(); 2376 } 2377 2378 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2379 final View.AttachInfo attachInfo = mAttachInfo; 2380 final Rect ci = attachInfo.mContentInsets; 2381 final Rect vi = attachInfo.mVisibleInsets; 2382 int scrollY = 0; 2383 boolean handled = false; 2384 2385 if (vi.left > ci.left || vi.top > ci.top 2386 || vi.right > ci.right || vi.bottom > ci.bottom) { 2387 // We'll assume that we aren't going to change the scroll 2388 // offset, since we want to avoid that unless it is actually 2389 // going to make the focus visible... otherwise we scroll 2390 // all over the place. 2391 scrollY = mScrollY; 2392 // We can be called for two different situations: during a draw, 2393 // to update the scroll position if the focus has changed (in which 2394 // case 'rectangle' is null), or in response to a 2395 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2396 // is non-null and we just want to scroll to whatever that 2397 // rectangle is). 2398 View focus = mRealFocusedView; 2399 2400 // When in touch mode, focus points to the previously focused view, 2401 // which may have been removed from the view hierarchy. The following 2402 // line checks whether the view is still in our hierarchy. 2403 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2404 mRealFocusedView = null; 2405 return false; 2406 } 2407 2408 if (focus != mLastScrolledFocus) { 2409 // If the focus has changed, then ignore any requests to scroll 2410 // to a rectangle; first we want to make sure the entire focus 2411 // view is visible. 2412 rectangle = null; 2413 } 2414 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2415 + " rectangle=" + rectangle + " ci=" + ci 2416 + " vi=" + vi); 2417 if (focus == mLastScrolledFocus && !mScrollMayChange 2418 && rectangle == null) { 2419 // Optimization: if the focus hasn't changed since last 2420 // time, and no layout has happened, then just leave things 2421 // as they are. 2422 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2423 + mScrollY + " vi=" + vi.toShortString()); 2424 } else if (focus != null) { 2425 // We need to determine if the currently focused view is 2426 // within the visible part of the window and, if not, apply 2427 // a pan so it can be seen. 2428 mLastScrolledFocus = focus; 2429 mScrollMayChange = false; 2430 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2431 // Try to find the rectangle from the focus view. 2432 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2433 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2434 + mView.getWidth() + " h=" + mView.getHeight() 2435 + " ci=" + ci.toShortString() 2436 + " vi=" + vi.toShortString()); 2437 if (rectangle == null) { 2438 focus.getFocusedRect(mTempRect); 2439 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2440 + ": focusRect=" + mTempRect.toShortString()); 2441 if (mView instanceof ViewGroup) { 2442 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2443 focus, mTempRect); 2444 } 2445 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2446 "Focus in window: focusRect=" 2447 + mTempRect.toShortString() 2448 + " visRect=" + mVisRect.toShortString()); 2449 } else { 2450 mTempRect.set(rectangle); 2451 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2452 "Request scroll to rect: " 2453 + mTempRect.toShortString() 2454 + " visRect=" + mVisRect.toShortString()); 2455 } 2456 if (mTempRect.intersect(mVisRect)) { 2457 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2458 "Focus window visible rect: " 2459 + mTempRect.toShortString()); 2460 if (mTempRect.height() > 2461 (mView.getHeight()-vi.top-vi.bottom)) { 2462 // If the focus simply is not going to fit, then 2463 // best is probably just to leave things as-is. 2464 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2465 "Too tall; leaving scrollY=" + scrollY); 2466 } else if ((mTempRect.top-scrollY) < vi.top) { 2467 scrollY -= vi.top - (mTempRect.top-scrollY); 2468 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2469 "Top covered; scrollY=" + scrollY); 2470 } else if ((mTempRect.bottom-scrollY) 2471 > (mView.getHeight()-vi.bottom)) { 2472 scrollY += (mTempRect.bottom-scrollY) 2473 - (mView.getHeight()-vi.bottom); 2474 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2475 "Bottom covered; scrollY=" + scrollY); 2476 } 2477 handled = true; 2478 } 2479 } 2480 } 2481 } 2482 2483 if (scrollY != mScrollY) { 2484 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2485 + mScrollY + " , new=" + scrollY); 2486 if (!immediate && mResizeBuffer == null) { 2487 if (mScroller == null) { 2488 mScroller = new Scroller(mView.getContext()); 2489 } 2490 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2491 } else if (mScroller != null) { 2492 mScroller.abortAnimation(); 2493 } 2494 mScrollY = scrollY; 2495 } 2496 2497 return handled; 2498 } 2499 2500 /** 2501 * @hide 2502 */ 2503 public View getAccessibilityFocusedHost() { 2504 return mAccessibilityFocusedHost; 2505 } 2506 2507 /** 2508 * @hide 2509 */ 2510 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2511 return mAccessibilityFocusedVirtualView; 2512 } 2513 2514 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2515 // If we have a virtual view with accessibility focus we need 2516 // to clear the focus and invalidate the virtual view bounds. 2517 if (mAccessibilityFocusedVirtualView != null) { 2518 2519 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2520 View focusHost = mAccessibilityFocusedHost; 2521 focusHost.clearAccessibilityFocusNoCallbacks(); 2522 2523 // Wipe the state of the current accessibility focus since 2524 // the call into the provider to clear accessibility focus 2525 // will fire an accessibility event which will end up calling 2526 // this method and we want to have clean state when this 2527 // invocation happens. 2528 mAccessibilityFocusedHost = null; 2529 mAccessibilityFocusedVirtualView = null; 2530 2531 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2532 if (provider != null) { 2533 // Invalidate the area of the cleared accessibility focus. 2534 focusNode.getBoundsInParent(mTempRect); 2535 focusHost.invalidate(mTempRect); 2536 // Clear accessibility focus in the virtual node. 2537 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2538 focusNode.getSourceNodeId()); 2539 provider.performAction(virtualNodeId, 2540 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2541 } 2542 focusNode.recycle(); 2543 } 2544 if (mAccessibilityFocusedHost != null) { 2545 // Clear accessibility focus in the view. 2546 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2547 } 2548 2549 // Set the new focus host and node. 2550 mAccessibilityFocusedHost = view; 2551 mAccessibilityFocusedVirtualView = node; 2552 } 2553 2554 public void requestChildFocus(View child, View focused) { 2555 checkThread(); 2556 2557 if (DEBUG_INPUT_RESIZE) { 2558 Log.v(TAG, "Request child focus: focus now " + focused); 2559 } 2560 2561 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2562 scheduleTraversals(); 2563 2564 mFocusedView = mRealFocusedView = focused; 2565 } 2566 2567 public void clearChildFocus(View child) { 2568 checkThread(); 2569 2570 if (DEBUG_INPUT_RESIZE) { 2571 Log.v(TAG, "Clearing child focus"); 2572 } 2573 2574 mOldFocusedView = mFocusedView; 2575 2576 // Invoke the listener only if there is no view to take focus 2577 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2578 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2579 } 2580 2581 mFocusedView = mRealFocusedView = null; 2582 } 2583 2584 @Override 2585 public ViewParent getParentForAccessibility() { 2586 return null; 2587 } 2588 2589 public void focusableViewAvailable(View v) { 2590 checkThread(); 2591 if (mView != null) { 2592 if (!mView.hasFocus()) { 2593 v.requestFocus(); 2594 } else { 2595 // the one case where will transfer focus away from the current one 2596 // is if the current view is a view group that prefers to give focus 2597 // to its children first AND the view is a descendant of it. 2598 mFocusedView = mView.findFocus(); 2599 boolean descendantsHaveDibsOnFocus = 2600 (mFocusedView instanceof ViewGroup) && 2601 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2602 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2603 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2604 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2605 v.requestFocus(); 2606 } 2607 } 2608 } 2609 } 2610 2611 public void recomputeViewAttributes(View child) { 2612 checkThread(); 2613 if (mView == child) { 2614 mAttachInfo.mRecomputeGlobalAttributes = true; 2615 if (!mWillDrawSoon) { 2616 scheduleTraversals(); 2617 } 2618 } 2619 } 2620 2621 void dispatchDetachedFromWindow() { 2622 if (mView != null && mView.mAttachInfo != null) { 2623 if (mAttachInfo.mHardwareRenderer != null && 2624 mAttachInfo.mHardwareRenderer.isEnabled()) { 2625 mAttachInfo.mHardwareRenderer.validate(); 2626 } 2627 mView.dispatchDetachedFromWindow(); 2628 } 2629 2630 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2631 mAccessibilityManager.removeAccessibilityStateChangeListener( 2632 mAccessibilityInteractionConnectionManager); 2633 removeSendWindowContentChangedCallback(); 2634 2635 destroyHardwareRenderer(); 2636 2637 setAccessibilityFocus(null, null); 2638 2639 mView = null; 2640 mAttachInfo.mRootView = null; 2641 mAttachInfo.mSurface = null; 2642 2643 mSurface.release(); 2644 2645 if (mInputQueueCallback != null && mInputQueue != null) { 2646 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2647 mInputQueueCallback = null; 2648 mInputQueue = null; 2649 } else if (mInputEventReceiver != null) { 2650 mInputEventReceiver.dispose(); 2651 mInputEventReceiver = null; 2652 } 2653 try { 2654 mWindowSession.remove(mWindow); 2655 } catch (RemoteException e) { 2656 } 2657 2658 // Dispose the input channel after removing the window so the Window Manager 2659 // doesn't interpret the input channel being closed as an abnormal termination. 2660 if (mInputChannel != null) { 2661 mInputChannel.dispose(); 2662 mInputChannel = null; 2663 } 2664 2665 unscheduleTraversals(); 2666 } 2667 2668 void updateConfiguration(Configuration config, boolean force) { 2669 if (DEBUG_CONFIGURATION) Log.v(TAG, 2670 "Applying new config to window " 2671 + mWindowAttributes.getTitle() 2672 + ": " + config); 2673 2674 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2675 if (ci != null) { 2676 config = new Configuration(config); 2677 ci.applyToConfiguration(mNoncompatDensity, config); 2678 } 2679 2680 synchronized (sConfigCallbacks) { 2681 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2682 sConfigCallbacks.get(i).onConfigurationChanged(config); 2683 } 2684 } 2685 if (mView != null) { 2686 // At this point the resources have been updated to 2687 // have the most recent config, whatever that is. Use 2688 // the one in them which may be newer. 2689 config = mView.getResources().getConfiguration(); 2690 if (force || mLastConfiguration.diff(config) != 0) { 2691 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2692 final int currentLayoutDirection = config.getLayoutDirection(); 2693 mLastConfiguration.setTo(config); 2694 if (lastLayoutDirection != currentLayoutDirection && 2695 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2696 mView.setLayoutDirection(currentLayoutDirection); 2697 } 2698 mView.dispatchConfigurationChanged(config); 2699 } 2700 } 2701 } 2702 2703 /** 2704 * Return true if child is an ancestor of parent, (or equal to the parent). 2705 */ 2706 public static boolean isViewDescendantOf(View child, View parent) { 2707 if (child == parent) { 2708 return true; 2709 } 2710 2711 final ViewParent theParent = child.getParent(); 2712 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2713 } 2714 2715 private static void forceLayout(View view) { 2716 view.forceLayout(); 2717 if (view instanceof ViewGroup) { 2718 ViewGroup group = (ViewGroup) view; 2719 final int count = group.getChildCount(); 2720 for (int i = 0; i < count; i++) { 2721 forceLayout(group.getChildAt(i)); 2722 } 2723 } 2724 } 2725 2726 private final static int MSG_INVALIDATE = 1; 2727 private final static int MSG_INVALIDATE_RECT = 2; 2728 private final static int MSG_DIE = 3; 2729 private final static int MSG_RESIZED = 4; 2730 private final static int MSG_RESIZED_REPORT = 5; 2731 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2732 private final static int MSG_DISPATCH_KEY = 7; 2733 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2734 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2735 private final static int MSG_IME_FINISHED_EVENT = 10; 2736 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2737 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2738 private final static int MSG_CHECK_FOCUS = 13; 2739 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2740 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2741 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2742 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2743 private final static int MSG_UPDATE_CONFIGURATION = 18; 2744 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2745 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2746 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2747 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2748 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2749 private final static int MSG_INVALIDATE_WORLD = 24; 2750 private final static int MSG_WINDOW_MOVED = 25; 2751 2752 final class ViewRootHandler extends Handler { 2753 @Override 2754 public String getMessageName(Message message) { 2755 switch (message.what) { 2756 case MSG_INVALIDATE: 2757 return "MSG_INVALIDATE"; 2758 case MSG_INVALIDATE_RECT: 2759 return "MSG_INVALIDATE_RECT"; 2760 case MSG_DIE: 2761 return "MSG_DIE"; 2762 case MSG_RESIZED: 2763 return "MSG_RESIZED"; 2764 case MSG_RESIZED_REPORT: 2765 return "MSG_RESIZED_REPORT"; 2766 case MSG_WINDOW_FOCUS_CHANGED: 2767 return "MSG_WINDOW_FOCUS_CHANGED"; 2768 case MSG_DISPATCH_KEY: 2769 return "MSG_DISPATCH_KEY"; 2770 case MSG_DISPATCH_APP_VISIBILITY: 2771 return "MSG_DISPATCH_APP_VISIBILITY"; 2772 case MSG_DISPATCH_GET_NEW_SURFACE: 2773 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2774 case MSG_IME_FINISHED_EVENT: 2775 return "MSG_IME_FINISHED_EVENT"; 2776 case MSG_DISPATCH_KEY_FROM_IME: 2777 return "MSG_DISPATCH_KEY_FROM_IME"; 2778 case MSG_FINISH_INPUT_CONNECTION: 2779 return "MSG_FINISH_INPUT_CONNECTION"; 2780 case MSG_CHECK_FOCUS: 2781 return "MSG_CHECK_FOCUS"; 2782 case MSG_CLOSE_SYSTEM_DIALOGS: 2783 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2784 case MSG_DISPATCH_DRAG_EVENT: 2785 return "MSG_DISPATCH_DRAG_EVENT"; 2786 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2787 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2788 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2789 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2790 case MSG_UPDATE_CONFIGURATION: 2791 return "MSG_UPDATE_CONFIGURATION"; 2792 case MSG_PROCESS_INPUT_EVENTS: 2793 return "MSG_PROCESS_INPUT_EVENTS"; 2794 case MSG_DISPATCH_SCREEN_STATE: 2795 return "MSG_DISPATCH_SCREEN_STATE"; 2796 case MSG_INVALIDATE_DISPLAY_LIST: 2797 return "MSG_INVALIDATE_DISPLAY_LIST"; 2798 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2799 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2800 case MSG_DISPATCH_DONE_ANIMATING: 2801 return "MSG_DISPATCH_DONE_ANIMATING"; 2802 case MSG_WINDOW_MOVED: 2803 return "MSG_WINDOW_MOVED"; 2804 } 2805 return super.getMessageName(message); 2806 } 2807 2808 @Override 2809 public void handleMessage(Message msg) { 2810 switch (msg.what) { 2811 case MSG_INVALIDATE: 2812 ((View) msg.obj).invalidate(); 2813 break; 2814 case MSG_INVALIDATE_RECT: 2815 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2816 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2817 info.release(); 2818 break; 2819 case MSG_IME_FINISHED_EVENT: 2820 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2821 break; 2822 case MSG_PROCESS_INPUT_EVENTS: 2823 mProcessInputEventsScheduled = false; 2824 doProcessInputEvents(); 2825 break; 2826 case MSG_DISPATCH_APP_VISIBILITY: 2827 handleAppVisibility(msg.arg1 != 0); 2828 break; 2829 case MSG_DISPATCH_GET_NEW_SURFACE: 2830 handleGetNewSurface(); 2831 break; 2832 case MSG_RESIZED: { 2833 // Recycled in the fall through... 2834 SomeArgs args = (SomeArgs) msg.obj; 2835 if (mWinFrame.equals(args.arg1) 2836 && mPendingContentInsets.equals(args.arg2) 2837 && mPendingVisibleInsets.equals(args.arg3) 2838 && args.arg4 == null) { 2839 break; 2840 } 2841 } // fall through... 2842 case MSG_RESIZED_REPORT: 2843 if (mAdded) { 2844 SomeArgs args = (SomeArgs) msg.obj; 2845 2846 Configuration config = (Configuration) args.arg4; 2847 if (config != null) { 2848 updateConfiguration(config, false); 2849 } 2850 2851 mWinFrame.set((Rect) args.arg1); 2852 mPendingContentInsets.set((Rect) args.arg2); 2853 mPendingVisibleInsets.set((Rect) args.arg3); 2854 2855 args.recycle(); 2856 2857 if (msg.what == MSG_RESIZED_REPORT) { 2858 mReportNextDraw = true; 2859 } 2860 2861 if (mView != null) { 2862 forceLayout(mView); 2863 } 2864 2865 requestLayout(); 2866 } 2867 break; 2868 case MSG_WINDOW_MOVED: 2869 if (mAdded) { 2870 final int w = mWinFrame.width(); 2871 final int h = mWinFrame.height(); 2872 final int l = msg.arg1; 2873 final int t = msg.arg2; 2874 mWinFrame.left = l; 2875 mWinFrame.right = l + w; 2876 mWinFrame.top = t; 2877 mWinFrame.bottom = t + h; 2878 2879 if (mView != null) { 2880 forceLayout(mView); 2881 } 2882 requestLayout(); 2883 } 2884 break; 2885 case MSG_WINDOW_FOCUS_CHANGED: { 2886 if (mAdded) { 2887 boolean hasWindowFocus = msg.arg1 != 0; 2888 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2889 2890 profileRendering(hasWindowFocus); 2891 2892 if (hasWindowFocus) { 2893 boolean inTouchMode = msg.arg2 != 0; 2894 ensureTouchModeLocally(inTouchMode); 2895 2896 if (mAttachInfo.mHardwareRenderer != null && 2897 mSurface != null && mSurface.isValid()) { 2898 mFullRedrawNeeded = true; 2899 try { 2900 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2901 mWidth, mHeight, mHolder.getSurface())) { 2902 mFullRedrawNeeded = true; 2903 } 2904 } catch (Surface.OutOfResourcesException e) { 2905 Log.e(TAG, "OutOfResourcesException locking surface", e); 2906 try { 2907 if (!mWindowSession.outOfMemory(mWindow)) { 2908 Slog.w(TAG, "No processes killed for memory; killing self"); 2909 Process.killProcess(Process.myPid()); 2910 } 2911 } catch (RemoteException ex) { 2912 } 2913 // Retry in a bit. 2914 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2915 return; 2916 } 2917 } 2918 } 2919 2920 mLastWasImTarget = WindowManager.LayoutParams 2921 .mayUseInputMethod(mWindowAttributes.flags); 2922 2923 InputMethodManager imm = InputMethodManager.peekInstance(); 2924 if (mView != null) { 2925 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2926 imm.startGettingWindowFocus(mView); 2927 } 2928 mAttachInfo.mKeyDispatchState.reset(); 2929 mView.dispatchWindowFocusChanged(hasWindowFocus); 2930 } 2931 2932 // Note: must be done after the focus change callbacks, 2933 // so all of the view state is set up correctly. 2934 if (hasWindowFocus) { 2935 if (imm != null && mLastWasImTarget) { 2936 imm.onWindowFocus(mView, mView.findFocus(), 2937 mWindowAttributes.softInputMode, 2938 !mHasHadWindowFocus, mWindowAttributes.flags); 2939 } 2940 // Clear the forward bit. We can just do this directly, since 2941 // the window manager doesn't care about it. 2942 mWindowAttributes.softInputMode &= 2943 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2944 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2945 .softInputMode &= 2946 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2947 mHasHadWindowFocus = true; 2948 } 2949 2950 setAccessibilityFocus(null, null); 2951 2952 if (mView != null && mAccessibilityManager.isEnabled()) { 2953 if (hasWindowFocus) { 2954 mView.sendAccessibilityEvent( 2955 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2956 } 2957 } 2958 } 2959 } break; 2960 case MSG_DIE: 2961 doDie(); 2962 break; 2963 case MSG_DISPATCH_KEY: { 2964 KeyEvent event = (KeyEvent)msg.obj; 2965 enqueueInputEvent(event, null, 0, true); 2966 } break; 2967 case MSG_DISPATCH_KEY_FROM_IME: { 2968 if (LOCAL_LOGV) Log.v( 2969 TAG, "Dispatching key " 2970 + msg.obj + " from IME to " + mView); 2971 KeyEvent event = (KeyEvent)msg.obj; 2972 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2973 // The IME is trying to say this event is from the 2974 // system! Bad bad bad! 2975 //noinspection UnusedAssignment 2976 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2977 } 2978 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2979 } break; 2980 case MSG_FINISH_INPUT_CONNECTION: { 2981 InputMethodManager imm = InputMethodManager.peekInstance(); 2982 if (imm != null) { 2983 imm.reportFinishInputConnection((InputConnection)msg.obj); 2984 } 2985 } break; 2986 case MSG_CHECK_FOCUS: { 2987 InputMethodManager imm = InputMethodManager.peekInstance(); 2988 if (imm != null) { 2989 imm.checkFocus(); 2990 } 2991 } break; 2992 case MSG_CLOSE_SYSTEM_DIALOGS: { 2993 if (mView != null) { 2994 mView.onCloseSystemDialogs((String)msg.obj); 2995 } 2996 } break; 2997 case MSG_DISPATCH_DRAG_EVENT: 2998 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2999 DragEvent event = (DragEvent)msg.obj; 3000 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3001 handleDragEvent(event); 3002 } break; 3003 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3004 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3005 } break; 3006 case MSG_UPDATE_CONFIGURATION: { 3007 Configuration config = (Configuration)msg.obj; 3008 if (config.isOtherSeqNewer(mLastConfiguration)) { 3009 config = mLastConfiguration; 3010 } 3011 updateConfiguration(config, false); 3012 } break; 3013 case MSG_DISPATCH_SCREEN_STATE: { 3014 if (mView != null) { 3015 handleScreenStateChange(msg.arg1 == 1); 3016 } 3017 } break; 3018 case MSG_INVALIDATE_DISPLAY_LIST: { 3019 invalidateDisplayLists(); 3020 } break; 3021 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3022 setAccessibilityFocus(null, null); 3023 } break; 3024 case MSG_DISPATCH_DONE_ANIMATING: { 3025 handleDispatchDoneAnimating(); 3026 } break; 3027 case MSG_INVALIDATE_WORLD: { 3028 if (mView != null) { 3029 invalidateWorld(mView); 3030 } 3031 } break; 3032 } 3033 } 3034 } 3035 3036 final ViewRootHandler mHandler = new ViewRootHandler(); 3037 3038 /** 3039 * Something in the current window tells us we need to change the touch mode. For 3040 * example, we are not in touch mode, and the user touches the screen. 3041 * 3042 * If the touch mode has changed, tell the window manager, and handle it locally. 3043 * 3044 * @param inTouchMode Whether we want to be in touch mode. 3045 * @return True if the touch mode changed and focus changed was changed as a result 3046 */ 3047 boolean ensureTouchMode(boolean inTouchMode) { 3048 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3049 + "touch mode is " + mAttachInfo.mInTouchMode); 3050 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3051 3052 // tell the window manager 3053 try { 3054 mWindowSession.setInTouchMode(inTouchMode); 3055 } catch (RemoteException e) { 3056 throw new RuntimeException(e); 3057 } 3058 3059 // handle the change 3060 return ensureTouchModeLocally(inTouchMode); 3061 } 3062 3063 /** 3064 * Ensure that the touch mode for this window is set, and if it is changing, 3065 * take the appropriate action. 3066 * @param inTouchMode Whether we want to be in touch mode. 3067 * @return True if the touch mode changed and focus changed was changed as a result 3068 */ 3069 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3070 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3071 + "touch mode is " + mAttachInfo.mInTouchMode); 3072 3073 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3074 3075 mAttachInfo.mInTouchMode = inTouchMode; 3076 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3077 3078 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3079 } 3080 3081 private boolean enterTouchMode() { 3082 if (mView != null) { 3083 if (mView.hasFocus()) { 3084 // note: not relying on mFocusedView here because this could 3085 // be when the window is first being added, and mFocused isn't 3086 // set yet. 3087 final View focused = mView.findFocus(); 3088 if (focused != null && !focused.isFocusableInTouchMode()) { 3089 3090 final ViewGroup ancestorToTakeFocus = 3091 findAncestorToTakeFocusInTouchMode(focused); 3092 if (ancestorToTakeFocus != null) { 3093 // there is an ancestor that wants focus after its descendants that 3094 // is focusable in touch mode.. give it focus 3095 return ancestorToTakeFocus.requestFocus(); 3096 } else { 3097 // nothing appropriate to have focus in touch mode, clear it out 3098 mView.unFocus(); 3099 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3100 mFocusedView = null; 3101 mOldFocusedView = null; 3102 return true; 3103 } 3104 } 3105 } 3106 } 3107 return false; 3108 } 3109 3110 /** 3111 * Find an ancestor of focused that wants focus after its descendants and is 3112 * focusable in touch mode. 3113 * @param focused The currently focused view. 3114 * @return An appropriate view, or null if no such view exists. 3115 */ 3116 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3117 ViewParent parent = focused.getParent(); 3118 while (parent instanceof ViewGroup) { 3119 final ViewGroup vgParent = (ViewGroup) parent; 3120 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3121 && vgParent.isFocusableInTouchMode()) { 3122 return vgParent; 3123 } 3124 if (vgParent.isRootNamespace()) { 3125 return null; 3126 } else { 3127 parent = vgParent.getParent(); 3128 } 3129 } 3130 return null; 3131 } 3132 3133 private boolean leaveTouchMode() { 3134 if (mView != null) { 3135 if (mView.hasFocus()) { 3136 // i learned the hard way to not trust mFocusedView :) 3137 mFocusedView = mView.findFocus(); 3138 if (!(mFocusedView instanceof ViewGroup)) { 3139 // some view has focus, let it keep it 3140 return false; 3141 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3142 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3143 // some view group has focus, and doesn't prefer its children 3144 // over itself for focus, so let them keep it. 3145 return false; 3146 } 3147 } 3148 3149 // find the best view to give focus to in this brave new non-touch-mode 3150 // world 3151 final View focused = focusSearch(null, View.FOCUS_DOWN); 3152 if (focused != null) { 3153 return focused.requestFocus(View.FOCUS_DOWN); 3154 } 3155 } 3156 return false; 3157 } 3158 3159 private void deliverInputEvent(QueuedInputEvent q) { 3160 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3161 try { 3162 if (q.mEvent instanceof KeyEvent) { 3163 deliverKeyEvent(q); 3164 } else { 3165 final int source = q.mEvent.getSource(); 3166 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3167 deliverPointerEvent(q); 3168 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3169 deliverTrackballEvent(q); 3170 } else { 3171 deliverGenericMotionEvent(q); 3172 } 3173 } 3174 } finally { 3175 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3176 } 3177 } 3178 3179 private void deliverPointerEvent(QueuedInputEvent q) { 3180 final MotionEvent event = (MotionEvent)q.mEvent; 3181 final boolean isTouchEvent = event.isTouchEvent(); 3182 if (mInputEventConsistencyVerifier != null) { 3183 if (isTouchEvent) { 3184 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3185 } else { 3186 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3187 } 3188 } 3189 3190 // If there is no view, then the event will not be handled. 3191 if (mView == null || !mAdded) { 3192 finishInputEvent(q, false); 3193 return; 3194 } 3195 3196 // Translate the pointer event for compatibility, if needed. 3197 if (mTranslator != null) { 3198 mTranslator.translateEventInScreenToAppWindow(event); 3199 } 3200 3201 // Enter touch mode on down or scroll. 3202 final int action = event.getAction(); 3203 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3204 ensureTouchMode(true); 3205 } 3206 3207 // Offset the scroll position. 3208 if (mCurScrollY != 0) { 3209 event.offsetLocation(0, mCurScrollY); 3210 } 3211 if (MEASURE_LATENCY) { 3212 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3213 } 3214 3215 // Remember the touch position for possible drag-initiation. 3216 if (isTouchEvent) { 3217 mLastTouchPoint.x = event.getRawX(); 3218 mLastTouchPoint.y = event.getRawY(); 3219 } 3220 3221 // Dispatch touch to view hierarchy. 3222 boolean handled = mView.dispatchPointerEvent(event); 3223 if (MEASURE_LATENCY) { 3224 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3225 } 3226 if (handled) { 3227 finishInputEvent(q, true); 3228 return; 3229 } 3230 3231 // Pointer event was unhandled. 3232 finishInputEvent(q, false); 3233 } 3234 3235 private void deliverTrackballEvent(QueuedInputEvent q) { 3236 final MotionEvent event = (MotionEvent)q.mEvent; 3237 if (mInputEventConsistencyVerifier != null) { 3238 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3239 } 3240 3241 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3242 if (LOCAL_LOGV) 3243 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3244 3245 // Dispatch to the IME before propagating down the view hierarchy. 3246 // The IME will eventually call back into handleImeFinishedEvent. 3247 if (mLastWasImTarget) { 3248 InputMethodManager imm = InputMethodManager.peekInstance(); 3249 if (imm != null) { 3250 final int seq = event.getSequenceNumber(); 3251 if (DEBUG_IMF) 3252 Log.v(TAG, "Sending trackball event to IME: seq=" 3253 + seq + " event=" + event); 3254 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3255 mInputMethodCallback); 3256 return; 3257 } 3258 } 3259 } 3260 3261 // Not dispatching to IME, continue with post IME actions. 3262 deliverTrackballEventPostIme(q); 3263 } 3264 3265 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3266 final MotionEvent event = (MotionEvent) q.mEvent; 3267 3268 // If there is no view, then the event will not be handled. 3269 if (mView == null || !mAdded) { 3270 finishInputEvent(q, false); 3271 return; 3272 } 3273 3274 // Deliver the trackball event to the view. 3275 if (mView.dispatchTrackballEvent(event)) { 3276 // If we reach this, we delivered a trackball event to mView and 3277 // mView consumed it. Because we will not translate the trackball 3278 // event into a key event, touch mode will not exit, so we exit 3279 // touch mode here. 3280 ensureTouchMode(false); 3281 3282 finishInputEvent(q, true); 3283 mLastTrackballTime = Integer.MIN_VALUE; 3284 return; 3285 } 3286 3287 // Translate the trackball event into DPAD keys and try to deliver those. 3288 final TrackballAxis x = mTrackballAxisX; 3289 final TrackballAxis y = mTrackballAxisY; 3290 3291 long curTime = SystemClock.uptimeMillis(); 3292 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3293 // It has been too long since the last movement, 3294 // so restart at the beginning. 3295 x.reset(0); 3296 y.reset(0); 3297 mLastTrackballTime = curTime; 3298 } 3299 3300 final int action = event.getAction(); 3301 final int metaState = event.getMetaState(); 3302 switch (action) { 3303 case MotionEvent.ACTION_DOWN: 3304 x.reset(2); 3305 y.reset(2); 3306 enqueueInputEvent(new KeyEvent(curTime, curTime, 3307 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3308 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3309 InputDevice.SOURCE_KEYBOARD)); 3310 break; 3311 case MotionEvent.ACTION_UP: 3312 x.reset(2); 3313 y.reset(2); 3314 enqueueInputEvent(new KeyEvent(curTime, curTime, 3315 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3316 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3317 InputDevice.SOURCE_KEYBOARD)); 3318 break; 3319 } 3320 3321 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3322 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3323 + " move=" + event.getX() 3324 + " / Y=" + y.position + " step=" 3325 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3326 + " move=" + event.getY()); 3327 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3328 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3329 3330 // Generate DPAD events based on the trackball movement. 3331 // We pick the axis that has moved the most as the direction of 3332 // the DPAD. When we generate DPAD events for one axis, then the 3333 // other axis is reset -- we don't want to perform DPAD jumps due 3334 // to slight movements in the trackball when making major movements 3335 // along the other axis. 3336 int keycode = 0; 3337 int movement = 0; 3338 float accel = 1; 3339 if (xOff > yOff) { 3340 movement = x.generate((2/event.getXPrecision())); 3341 if (movement != 0) { 3342 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3343 : KeyEvent.KEYCODE_DPAD_LEFT; 3344 accel = x.acceleration; 3345 y.reset(2); 3346 } 3347 } else if (yOff > 0) { 3348 movement = y.generate((2/event.getYPrecision())); 3349 if (movement != 0) { 3350 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3351 : KeyEvent.KEYCODE_DPAD_UP; 3352 accel = y.acceleration; 3353 x.reset(2); 3354 } 3355 } 3356 3357 if (keycode != 0) { 3358 if (movement < 0) movement = -movement; 3359 int accelMovement = (int)(movement * accel); 3360 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3361 + " accelMovement=" + accelMovement 3362 + " accel=" + accel); 3363 if (accelMovement > movement) { 3364 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3365 + keycode); 3366 movement--; 3367 int repeatCount = accelMovement - movement; 3368 enqueueInputEvent(new KeyEvent(curTime, curTime, 3369 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3370 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3371 InputDevice.SOURCE_KEYBOARD)); 3372 } 3373 while (movement > 0) { 3374 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3375 + keycode); 3376 movement--; 3377 curTime = SystemClock.uptimeMillis(); 3378 enqueueInputEvent(new KeyEvent(curTime, curTime, 3379 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3380 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3381 InputDevice.SOURCE_KEYBOARD)); 3382 enqueueInputEvent(new KeyEvent(curTime, curTime, 3383 KeyEvent.ACTION_UP, keycode, 0, metaState, 3384 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3385 InputDevice.SOURCE_KEYBOARD)); 3386 } 3387 mLastTrackballTime = curTime; 3388 } 3389 3390 // Unfortunately we can't tell whether the application consumed the keys, so 3391 // we always consider the trackball event handled. 3392 finishInputEvent(q, true); 3393 } 3394 3395 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3396 final MotionEvent event = (MotionEvent)q.mEvent; 3397 if (mInputEventConsistencyVerifier != null) { 3398 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3399 } 3400 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3401 if (LOCAL_LOGV) 3402 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3403 3404 // Dispatch to the IME before propagating down the view hierarchy. 3405 // The IME will eventually call back into handleImeFinishedEvent. 3406 if (mLastWasImTarget) { 3407 InputMethodManager imm = InputMethodManager.peekInstance(); 3408 if (imm != null) { 3409 final int seq = event.getSequenceNumber(); 3410 if (DEBUG_IMF) 3411 Log.v(TAG, "Sending generic motion event to IME: seq=" 3412 + seq + " event=" + event); 3413 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3414 mInputMethodCallback); 3415 return; 3416 } 3417 } 3418 } 3419 3420 // Not dispatching to IME, continue with post IME actions. 3421 deliverGenericMotionEventPostIme(q); 3422 } 3423 3424 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3425 final MotionEvent event = (MotionEvent) q.mEvent; 3426 final int source = event.getSource(); 3427 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3428 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3429 3430 // If there is no view, then the event will not be handled. 3431 if (mView == null || !mAdded) { 3432 if (isJoystick) { 3433 updateJoystickDirection(event, false); 3434 } else if (isTouchPad) { 3435 //Convert TouchPad motion into a TrackBall event 3436 mSimulatedTrackball.updateTrackballDirection(this, event); 3437 } 3438 finishInputEvent(q, false); 3439 return; 3440 } 3441 3442 // Deliver the event to the view. 3443 if (mView.dispatchGenericMotionEvent(event)) { 3444 if (isJoystick) { 3445 updateJoystickDirection(event, false); 3446 } else if (isTouchPad) { 3447 //Convert TouchPad motion into a TrackBall event 3448 mSimulatedTrackball.updateTrackballDirection(this, event); 3449 } 3450 finishInputEvent(q, true); 3451 return; 3452 } 3453 3454 if (isJoystick) { 3455 // Translate the joystick event into DPAD keys and try to deliver 3456 // those. 3457 updateJoystickDirection(event, true); 3458 finishInputEvent(q, true); 3459 } else if (isTouchPad) { 3460 //Convert TouchPad motion into a TrackBall event 3461 mSimulatedTrackball.updateTrackballDirection(this, event); 3462 finishInputEvent(q, true); 3463 } else { 3464 finishInputEvent(q, false); 3465 } 3466 } 3467 3468 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3469 final long time = event.getEventTime(); 3470 final int metaState = event.getMetaState(); 3471 final int deviceId = event.getDeviceId(); 3472 final int source = event.getSource(); 3473 3474 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3475 if (xDirection == 0) { 3476 xDirection = joystickAxisValueToDirection(event.getX()); 3477 } 3478 3479 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3480 if (yDirection == 0) { 3481 yDirection = joystickAxisValueToDirection(event.getY()); 3482 } 3483 3484 if (xDirection != mLastJoystickXDirection) { 3485 if (mLastJoystickXKeyCode != 0) { 3486 enqueueInputEvent(new KeyEvent(time, time, 3487 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3488 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3489 mLastJoystickXKeyCode = 0; 3490 } 3491 3492 mLastJoystickXDirection = xDirection; 3493 3494 if (xDirection != 0 && synthesizeNewKeys) { 3495 mLastJoystickXKeyCode = xDirection > 0 3496 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3497 enqueueInputEvent(new KeyEvent(time, time, 3498 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3499 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3500 } 3501 } 3502 3503 if (yDirection != mLastJoystickYDirection) { 3504 if (mLastJoystickYKeyCode != 0) { 3505 enqueueInputEvent(new KeyEvent(time, time, 3506 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3507 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3508 mLastJoystickYKeyCode = 0; 3509 } 3510 3511 mLastJoystickYDirection = yDirection; 3512 3513 if (yDirection != 0 && synthesizeNewKeys) { 3514 mLastJoystickYKeyCode = yDirection > 0 3515 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3516 enqueueInputEvent(new KeyEvent(time, time, 3517 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3518 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3519 } 3520 } 3521 } 3522 3523 private static int joystickAxisValueToDirection(float value) { 3524 if (value >= 0.5f) { 3525 return 1; 3526 } else if (value <= -0.5f) { 3527 return -1; 3528 } else { 3529 return 0; 3530 } 3531 } 3532 3533 /** 3534 * Returns true if the key is used for keyboard navigation. 3535 * @param keyEvent The key event. 3536 * @return True if the key is used for keyboard navigation. 3537 */ 3538 private static boolean isNavigationKey(KeyEvent keyEvent) { 3539 switch (keyEvent.getKeyCode()) { 3540 case KeyEvent.KEYCODE_DPAD_LEFT: 3541 case KeyEvent.KEYCODE_DPAD_RIGHT: 3542 case KeyEvent.KEYCODE_DPAD_UP: 3543 case KeyEvent.KEYCODE_DPAD_DOWN: 3544 case KeyEvent.KEYCODE_DPAD_CENTER: 3545 case KeyEvent.KEYCODE_PAGE_UP: 3546 case KeyEvent.KEYCODE_PAGE_DOWN: 3547 case KeyEvent.KEYCODE_MOVE_HOME: 3548 case KeyEvent.KEYCODE_MOVE_END: 3549 case KeyEvent.KEYCODE_TAB: 3550 case KeyEvent.KEYCODE_SPACE: 3551 case KeyEvent.KEYCODE_ENTER: 3552 return true; 3553 } 3554 return false; 3555 } 3556 3557 /** 3558 * Returns true if the key is used for typing. 3559 * @param keyEvent The key event. 3560 * @return True if the key is used for typing. 3561 */ 3562 private static boolean isTypingKey(KeyEvent keyEvent) { 3563 return keyEvent.getUnicodeChar() > 0; 3564 } 3565 3566 /** 3567 * See if the key event means we should leave touch mode (and leave touch mode if so). 3568 * @param event The key event. 3569 * @return Whether this key event should be consumed (meaning the act of 3570 * leaving touch mode alone is considered the event). 3571 */ 3572 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3573 // Only relevant in touch mode. 3574 if (!mAttachInfo.mInTouchMode) { 3575 return false; 3576 } 3577 3578 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3579 final int action = event.getAction(); 3580 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3581 return false; 3582 } 3583 3584 // Don't leave touch mode if the IME told us not to. 3585 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3586 return false; 3587 } 3588 3589 // If the key can be used for keyboard navigation then leave touch mode 3590 // and select a focused view if needed (in ensureTouchMode). 3591 // When a new focused view is selected, we consume the navigation key because 3592 // navigation doesn't make much sense unless a view already has focus so 3593 // the key's purpose is to set focus. 3594 if (isNavigationKey(event)) { 3595 return ensureTouchMode(false); 3596 } 3597 3598 // If the key can be used for typing then leave touch mode 3599 // and select a focused view if needed (in ensureTouchMode). 3600 // Always allow the view to process the typing key. 3601 if (isTypingKey(event)) { 3602 ensureTouchMode(false); 3603 return false; 3604 } 3605 3606 return false; 3607 } 3608 3609 private void deliverKeyEvent(QueuedInputEvent q) { 3610 final KeyEvent event = (KeyEvent)q.mEvent; 3611 if (mInputEventConsistencyVerifier != null) { 3612 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3613 } 3614 3615 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3616 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3617 3618 // Perform predispatching before the IME. 3619 if (mView.dispatchKeyEventPreIme(event)) { 3620 finishInputEvent(q, true); 3621 return; 3622 } 3623 3624 // Dispatch to the IME before propagating down the view hierarchy. 3625 // The IME will eventually call back into handleImeFinishedEvent. 3626 if (mLastWasImTarget) { 3627 InputMethodManager imm = InputMethodManager.peekInstance(); 3628 if (imm != null) { 3629 final int seq = event.getSequenceNumber(); 3630 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3631 + seq + " event=" + event); 3632 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3633 return; 3634 } 3635 } 3636 } 3637 3638 // Not dispatching to IME, continue with post IME actions. 3639 deliverKeyEventPostIme(q); 3640 } 3641 3642 void handleImeFinishedEvent(int seq, boolean handled) { 3643 final QueuedInputEvent q = mCurrentInputEvent; 3644 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3645 if (DEBUG_IMF) { 3646 Log.v(TAG, "IME finished event: seq=" + seq 3647 + " handled=" + handled + " event=" + q); 3648 } 3649 if (handled) { 3650 finishInputEvent(q, true); 3651 } else { 3652 if (q.mEvent instanceof KeyEvent) { 3653 KeyEvent event = (KeyEvent)q.mEvent; 3654 if (event.getAction() != KeyEvent.ACTION_UP) { 3655 // If the window doesn't currently have input focus, then drop 3656 // this event. This could be an event that came back from the 3657 // IME dispatch but the window has lost focus in the meantime. 3658 if (!mAttachInfo.mHasWindowFocus) { 3659 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3660 finishInputEvent(q, true); 3661 return; 3662 } 3663 } 3664 deliverKeyEventPostIme(q); 3665 } else { 3666 MotionEvent event = (MotionEvent)q.mEvent; 3667 if (event.getAction() != MotionEvent.ACTION_CANCEL 3668 && event.getAction() != MotionEvent.ACTION_UP) { 3669 // If the window doesn't currently have input focus, then drop 3670 // this event. This could be an event that came back from the 3671 // IME dispatch but the window has lost focus in the meantime. 3672 if (!mAttachInfo.mHasWindowFocus) { 3673 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3674 finishInputEvent(q, true); 3675 return; 3676 } 3677 } 3678 final int source = q.mEvent.getSource(); 3679 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3680 deliverTrackballEventPostIme(q); 3681 } else { 3682 deliverGenericMotionEventPostIme(q); 3683 } 3684 } 3685 } 3686 } else { 3687 if (DEBUG_IMF) { 3688 Log.v(TAG, "IME finished event: seq=" + seq 3689 + " handled=" + handled + ", event not found!"); 3690 } 3691 } 3692 } 3693 3694 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3695 final KeyEvent event = (KeyEvent)q.mEvent; 3696 3697 // If the view went away, then the event will not be handled. 3698 if (mView == null || !mAdded) { 3699 finishInputEvent(q, false); 3700 return; 3701 } 3702 3703 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3704 if (checkForLeavingTouchModeAndConsume(event)) { 3705 finishInputEvent(q, true); 3706 return; 3707 } 3708 3709 // Make sure the fallback event policy sees all keys that will be delivered to the 3710 // view hierarchy. 3711 mFallbackEventHandler.preDispatchKeyEvent(event); 3712 3713 // Deliver the key to the view hierarchy. 3714 if (mView.dispatchKeyEvent(event)) { 3715 finishInputEvent(q, true); 3716 return; 3717 } 3718 3719 // If the Control modifier is held, try to interpret the key as a shortcut. 3720 if (event.getAction() == KeyEvent.ACTION_DOWN 3721 && event.isCtrlPressed() 3722 && event.getRepeatCount() == 0 3723 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3724 if (mView.dispatchKeyShortcutEvent(event)) { 3725 finishInputEvent(q, true); 3726 return; 3727 } 3728 } 3729 3730 // Apply the fallback event policy. 3731 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3732 finishInputEvent(q, true); 3733 return; 3734 } 3735 3736 // Handle automatic focus changes. 3737 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3738 int direction = 0; 3739 switch (event.getKeyCode()) { 3740 case KeyEvent.KEYCODE_DPAD_LEFT: 3741 if (event.hasNoModifiers()) { 3742 direction = View.FOCUS_LEFT; 3743 } 3744 break; 3745 case KeyEvent.KEYCODE_DPAD_RIGHT: 3746 if (event.hasNoModifiers()) { 3747 direction = View.FOCUS_RIGHT; 3748 } 3749 break; 3750 case KeyEvent.KEYCODE_DPAD_UP: 3751 if (event.hasNoModifiers()) { 3752 direction = View.FOCUS_UP; 3753 } 3754 break; 3755 case KeyEvent.KEYCODE_DPAD_DOWN: 3756 if (event.hasNoModifiers()) { 3757 direction = View.FOCUS_DOWN; 3758 } 3759 break; 3760 case KeyEvent.KEYCODE_TAB: 3761 if (event.hasNoModifiers()) { 3762 direction = View.FOCUS_FORWARD; 3763 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3764 direction = View.FOCUS_BACKWARD; 3765 } 3766 break; 3767 } 3768 if (direction != 0) { 3769 View focused = mView.findFocus(); 3770 if (focused != null) { 3771 View v = focused.focusSearch(direction); 3772 if (v != null && v != focused) { 3773 // do the math the get the interesting rect 3774 // of previous focused into the coord system of 3775 // newly focused view 3776 focused.getFocusedRect(mTempRect); 3777 if (mView instanceof ViewGroup) { 3778 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3779 focused, mTempRect); 3780 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3781 v, mTempRect); 3782 } 3783 if (v.requestFocus(direction, mTempRect)) { 3784 playSoundEffect(SoundEffectConstants 3785 .getContantForFocusDirection(direction)); 3786 finishInputEvent(q, true); 3787 return; 3788 } 3789 } 3790 3791 // Give the focused view a last chance to handle the dpad key. 3792 if (mView.dispatchUnhandledMove(focused, direction)) { 3793 finishInputEvent(q, true); 3794 return; 3795 } 3796 } else { 3797 // find the best view to give focus to in this non-touch-mode with no-focus 3798 View v = focusSearch(null, direction); 3799 if (v != null && v.requestFocus(direction)) { 3800 finishInputEvent(q, true); 3801 return; 3802 } 3803 } 3804 } 3805 } 3806 3807 // Key was unhandled. 3808 finishInputEvent(q, false); 3809 } 3810 3811 /* drag/drop */ 3812 void setLocalDragState(Object obj) { 3813 mLocalDragState = obj; 3814 } 3815 3816 private void handleDragEvent(DragEvent event) { 3817 // From the root, only drag start/end/location are dispatched. entered/exited 3818 // are determined and dispatched by the viewgroup hierarchy, who then report 3819 // that back here for ultimate reporting back to the framework. 3820 if (mView != null && mAdded) { 3821 final int what = event.mAction; 3822 3823 if (what == DragEvent.ACTION_DRAG_EXITED) { 3824 // A direct EXITED event means that the window manager knows we've just crossed 3825 // a window boundary, so the current drag target within this one must have 3826 // just been exited. Send it the usual notifications and then we're done 3827 // for now. 3828 mView.dispatchDragEvent(event); 3829 } else { 3830 // Cache the drag description when the operation starts, then fill it in 3831 // on subsequent calls as a convenience 3832 if (what == DragEvent.ACTION_DRAG_STARTED) { 3833 mCurrentDragView = null; // Start the current-recipient tracking 3834 mDragDescription = event.mClipDescription; 3835 } else { 3836 event.mClipDescription = mDragDescription; 3837 } 3838 3839 // For events with a [screen] location, translate into window coordinates 3840 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3841 mDragPoint.set(event.mX, event.mY); 3842 if (mTranslator != null) { 3843 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3844 } 3845 3846 if (mCurScrollY != 0) { 3847 mDragPoint.offset(0, mCurScrollY); 3848 } 3849 3850 event.mX = mDragPoint.x; 3851 event.mY = mDragPoint.y; 3852 } 3853 3854 // Remember who the current drag target is pre-dispatch 3855 final View prevDragView = mCurrentDragView; 3856 3857 // Now dispatch the drag/drop event 3858 boolean result = mView.dispatchDragEvent(event); 3859 3860 // If we changed apparent drag target, tell the OS about it 3861 if (prevDragView != mCurrentDragView) { 3862 try { 3863 if (prevDragView != null) { 3864 mWindowSession.dragRecipientExited(mWindow); 3865 } 3866 if (mCurrentDragView != null) { 3867 mWindowSession.dragRecipientEntered(mWindow); 3868 } 3869 } catch (RemoteException e) { 3870 Slog.e(TAG, "Unable to note drag target change"); 3871 } 3872 } 3873 3874 // Report the drop result when we're done 3875 if (what == DragEvent.ACTION_DROP) { 3876 mDragDescription = null; 3877 try { 3878 Log.i(TAG, "Reporting drop result: " + result); 3879 mWindowSession.reportDropResult(mWindow, result); 3880 } catch (RemoteException e) { 3881 Log.e(TAG, "Unable to report drop result"); 3882 } 3883 } 3884 3885 // When the drag operation ends, release any local state object 3886 // that may have been in use 3887 if (what == DragEvent.ACTION_DRAG_ENDED) { 3888 setLocalDragState(null); 3889 } 3890 } 3891 } 3892 event.recycle(); 3893 } 3894 3895 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3896 if (mSeq != args.seq) { 3897 // The sequence has changed, so we need to update our value and make 3898 // sure to do a traversal afterward so the window manager is given our 3899 // most recent data. 3900 mSeq = args.seq; 3901 mAttachInfo.mForceReportNewAttributes = true; 3902 scheduleTraversals(); 3903 } 3904 if (mView == null) return; 3905 if (args.localChanges != 0) { 3906 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3907 } 3908 if (mAttachInfo != null) { 3909 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3910 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3911 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3912 mView.dispatchSystemUiVisibilityChanged(visibility); 3913 } 3914 } 3915 } 3916 3917 public void handleDispatchDoneAnimating() { 3918 if (mWindowsAnimating) { 3919 mWindowsAnimating = false; 3920 if (!mDirty.isEmpty() || mIsAnimating) { 3921 scheduleTraversals(); 3922 } 3923 } 3924 } 3925 3926 public void getLastTouchPoint(Point outLocation) { 3927 outLocation.x = (int) mLastTouchPoint.x; 3928 outLocation.y = (int) mLastTouchPoint.y; 3929 } 3930 3931 public void setDragFocus(View newDragTarget) { 3932 if (mCurrentDragView != newDragTarget) { 3933 mCurrentDragView = newDragTarget; 3934 } 3935 } 3936 3937 private AudioManager getAudioManager() { 3938 if (mView == null) { 3939 throw new IllegalStateException("getAudioManager called when there is no mView"); 3940 } 3941 if (mAudioManager == null) { 3942 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3943 } 3944 return mAudioManager; 3945 } 3946 3947 public AccessibilityInteractionController getAccessibilityInteractionController() { 3948 if (mView == null) { 3949 throw new IllegalStateException("getAccessibilityInteractionController" 3950 + " called when there is no mView"); 3951 } 3952 if (mAccessibilityInteractionController == null) { 3953 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3954 } 3955 return mAccessibilityInteractionController; 3956 } 3957 3958 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3959 boolean insetsPending) throws RemoteException { 3960 3961 float appScale = mAttachInfo.mApplicationScale; 3962 boolean restore = false; 3963 if (params != null && mTranslator != null) { 3964 restore = true; 3965 params.backup(); 3966 mTranslator.translateWindowLayout(params); 3967 } 3968 if (params != null) { 3969 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3970 } 3971 mPendingConfiguration.seq = 0; 3972 //Log.d(TAG, ">>>>>> CALLING relayout"); 3973 if (params != null && mOrigWindowType != params.type) { 3974 // For compatibility with old apps, don't crash here. 3975 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3976 Slog.w(TAG, "Window type can not be changed after " 3977 + "the window is added; ignoring change of " + mView); 3978 params.type = mOrigWindowType; 3979 } 3980 } 3981 int relayoutResult = mWindowSession.relayout( 3982 mWindow, mSeq, params, 3983 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3984 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3985 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 3986 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3987 mPendingConfiguration, mSurface); 3988 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3989 if (restore) { 3990 params.restore(); 3991 } 3992 3993 if (mTranslator != null) { 3994 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3995 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3996 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3997 } 3998 return relayoutResult; 3999 } 4000 4001 /** 4002 * {@inheritDoc} 4003 */ 4004 public void playSoundEffect(int effectId) { 4005 checkThread(); 4006 4007 try { 4008 final AudioManager audioManager = getAudioManager(); 4009 4010 switch (effectId) { 4011 case SoundEffectConstants.CLICK: 4012 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4013 return; 4014 case SoundEffectConstants.NAVIGATION_DOWN: 4015 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4016 return; 4017 case SoundEffectConstants.NAVIGATION_LEFT: 4018 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4019 return; 4020 case SoundEffectConstants.NAVIGATION_RIGHT: 4021 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4022 return; 4023 case SoundEffectConstants.NAVIGATION_UP: 4024 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4025 return; 4026 default: 4027 throw new IllegalArgumentException("unknown effect id " + effectId + 4028 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4029 } 4030 } catch (IllegalStateException e) { 4031 // Exception thrown by getAudioManager() when mView is null 4032 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4033 e.printStackTrace(); 4034 } 4035 } 4036 4037 /** 4038 * {@inheritDoc} 4039 */ 4040 public boolean performHapticFeedback(int effectId, boolean always) { 4041 try { 4042 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4043 } catch (RemoteException e) { 4044 return false; 4045 } 4046 } 4047 4048 /** 4049 * {@inheritDoc} 4050 */ 4051 public View focusSearch(View focused, int direction) { 4052 checkThread(); 4053 if (!(mView instanceof ViewGroup)) { 4054 return null; 4055 } 4056 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4057 } 4058 4059 public void debug() { 4060 mView.debug(); 4061 } 4062 4063 public void dumpGfxInfo(int[] info) { 4064 info[0] = info[1] = 0; 4065 if (mView != null) { 4066 getGfxInfo(mView, info); 4067 } 4068 } 4069 4070 private static void getGfxInfo(View view, int[] info) { 4071 DisplayList displayList = view.mDisplayList; 4072 info[0]++; 4073 if (displayList != null) { 4074 info[1] += displayList.getSize(); 4075 } 4076 4077 if (view instanceof ViewGroup) { 4078 ViewGroup group = (ViewGroup) view; 4079 4080 int count = group.getChildCount(); 4081 for (int i = 0; i < count; i++) { 4082 getGfxInfo(group.getChildAt(i), info); 4083 } 4084 } 4085 } 4086 4087 public void die(boolean immediate) { 4088 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4089 // done by dispatchDetachedFromWindow will cause havoc on return. 4090 if (immediate && !mIsInTraversal) { 4091 doDie(); 4092 } else { 4093 if (!mIsDrawing) { 4094 destroyHardwareRenderer(); 4095 } else { 4096 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4097 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4098 } 4099 mHandler.sendEmptyMessage(MSG_DIE); 4100 } 4101 } 4102 4103 void doDie() { 4104 checkThread(); 4105 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4106 synchronized (this) { 4107 if (mAdded) { 4108 dispatchDetachedFromWindow(); 4109 } 4110 4111 if (mAdded && !mFirst) { 4112 destroyHardwareRenderer(); 4113 4114 if (mView != null) { 4115 int viewVisibility = mView.getVisibility(); 4116 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4117 if (mWindowAttributesChanged || viewVisibilityChanged) { 4118 // If layout params have been changed, first give them 4119 // to the window manager to make sure it has the correct 4120 // animation info. 4121 try { 4122 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4123 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4124 mWindowSession.finishDrawing(mWindow); 4125 } 4126 } catch (RemoteException e) { 4127 } 4128 } 4129 4130 mSurface.release(); 4131 } 4132 } 4133 4134 mAdded = false; 4135 } 4136 } 4137 4138 public void requestUpdateConfiguration(Configuration config) { 4139 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4140 mHandler.sendMessage(msg); 4141 } 4142 4143 public void loadSystemProperties() { 4144 boolean layout = SystemProperties.getBoolean( 4145 View.DEBUG_LAYOUT_PROPERTY, false); 4146 if (layout != mAttachInfo.mDebugLayout) { 4147 mAttachInfo.mDebugLayout = layout; 4148 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4149 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4150 } 4151 } 4152 } 4153 4154 private void destroyHardwareRenderer() { 4155 AttachInfo attachInfo = mAttachInfo; 4156 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4157 4158 if (hardwareRenderer != null) { 4159 if (mView != null) { 4160 hardwareRenderer.destroyHardwareResources(mView); 4161 } 4162 hardwareRenderer.destroy(true); 4163 hardwareRenderer.setRequested(false); 4164 4165 attachInfo.mHardwareRenderer = null; 4166 attachInfo.mHardwareAccelerated = false; 4167 } 4168 } 4169 4170 void dispatchImeFinishedEvent(int seq, boolean handled) { 4171 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4172 msg.arg1 = seq; 4173 msg.arg2 = handled ? 1 : 0; 4174 msg.setAsynchronous(true); 4175 mHandler.sendMessage(msg); 4176 } 4177 4178 public void dispatchFinishInputConnection(InputConnection connection) { 4179 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4180 mHandler.sendMessage(msg); 4181 } 4182 4183 public void dispatchResized(Rect frame, Rect contentInsets, 4184 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4185 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4186 + " contentInsets=" + contentInsets.toShortString() 4187 + " visibleInsets=" + visibleInsets.toShortString() 4188 + " reportDraw=" + reportDraw); 4189 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4190 if (mTranslator != null) { 4191 mTranslator.translateRectInScreenToAppWindow(frame); 4192 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4193 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4194 } 4195 SomeArgs args = SomeArgs.obtain(); 4196 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4197 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4198 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4199 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4200 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4201 msg.obj = args; 4202 mHandler.sendMessage(msg); 4203 } 4204 4205 public void dispatchMoved(int newX, int newY) { 4206 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4207 if (mTranslator != null) { 4208 PointF point = new PointF(newX, newY); 4209 mTranslator.translatePointInScreenToAppWindow(point); 4210 newX = (int) (point.x + 0.5); 4211 newY = (int) (point.y + 0.5); 4212 } 4213 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4214 mHandler.sendMessage(msg); 4215 } 4216 4217 /** 4218 * Represents a pending input event that is waiting in a queue. 4219 * 4220 * Input events are processed in serial order by the timestamp specified by 4221 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4222 * one input event to the application at a time and waits for the application 4223 * to finish handling it before delivering the next one. 4224 * 4225 * However, because the application or IME can synthesize and inject multiple 4226 * key events at a time without going through the input dispatcher, we end up 4227 * needing a queue on the application's side. 4228 */ 4229 private static final class QueuedInputEvent { 4230 public static final int FLAG_DELIVER_POST_IME = 1; 4231 4232 public QueuedInputEvent mNext; 4233 4234 public InputEvent mEvent; 4235 public InputEventReceiver mReceiver; 4236 public int mFlags; 4237 } 4238 4239 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4240 InputEventReceiver receiver, int flags) { 4241 QueuedInputEvent q = mQueuedInputEventPool; 4242 if (q != null) { 4243 mQueuedInputEventPoolSize -= 1; 4244 mQueuedInputEventPool = q.mNext; 4245 q.mNext = null; 4246 } else { 4247 q = new QueuedInputEvent(); 4248 } 4249 4250 q.mEvent = event; 4251 q.mReceiver = receiver; 4252 q.mFlags = flags; 4253 return q; 4254 } 4255 4256 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4257 q.mEvent = null; 4258 q.mReceiver = null; 4259 4260 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4261 mQueuedInputEventPoolSize += 1; 4262 q.mNext = mQueuedInputEventPool; 4263 mQueuedInputEventPool = q; 4264 } 4265 } 4266 4267 void enqueueInputEvent(InputEvent event) { 4268 enqueueInputEvent(event, null, 0, false); 4269 } 4270 4271 void enqueueInputEvent(InputEvent event, 4272 InputEventReceiver receiver, int flags, boolean processImmediately) { 4273 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4274 4275 // Always enqueue the input event in order, regardless of its time stamp. 4276 // We do this because the application or the IME may inject key events 4277 // in response to touch events and we want to ensure that the injected keys 4278 // are processed in the order they were received and we cannot trust that 4279 // the time stamp of injected events are monotonic. 4280 QueuedInputEvent last = mFirstPendingInputEvent; 4281 if (last == null) { 4282 mFirstPendingInputEvent = q; 4283 } else { 4284 while (last.mNext != null) { 4285 last = last.mNext; 4286 } 4287 last.mNext = q; 4288 } 4289 4290 if (processImmediately) { 4291 doProcessInputEvents(); 4292 } else { 4293 scheduleProcessInputEvents(); 4294 } 4295 } 4296 4297 private void scheduleProcessInputEvents() { 4298 if (!mProcessInputEventsScheduled) { 4299 mProcessInputEventsScheduled = true; 4300 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4301 msg.setAsynchronous(true); 4302 mHandler.sendMessage(msg); 4303 } 4304 } 4305 4306 void doProcessInputEvents() { 4307 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4308 QueuedInputEvent q = mFirstPendingInputEvent; 4309 mFirstPendingInputEvent = q.mNext; 4310 q.mNext = null; 4311 mCurrentInputEvent = q; 4312 deliverInputEvent(q); 4313 } 4314 4315 // We are done processing all input events that we can process right now 4316 // so we can clear the pending flag immediately. 4317 if (mProcessInputEventsScheduled) { 4318 mProcessInputEventsScheduled = false; 4319 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4320 } 4321 } 4322 4323 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4324 if (q != mCurrentInputEvent) { 4325 throw new IllegalStateException("finished input event out of order"); 4326 } 4327 4328 if (q.mReceiver != null) { 4329 q.mReceiver.finishInputEvent(q.mEvent, handled); 4330 } else { 4331 q.mEvent.recycleIfNeededAfterDispatch(); 4332 } 4333 4334 recycleQueuedInputEvent(q); 4335 4336 mCurrentInputEvent = null; 4337 if (mFirstPendingInputEvent != null) { 4338 scheduleProcessInputEvents(); 4339 } 4340 } 4341 4342 void scheduleConsumeBatchedInput() { 4343 if (!mConsumeBatchedInputScheduled) { 4344 mConsumeBatchedInputScheduled = true; 4345 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4346 mConsumedBatchedInputRunnable, null); 4347 } 4348 } 4349 4350 void unscheduleConsumeBatchedInput() { 4351 if (mConsumeBatchedInputScheduled) { 4352 mConsumeBatchedInputScheduled = false; 4353 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4354 mConsumedBatchedInputRunnable, null); 4355 } 4356 } 4357 4358 void doConsumeBatchedInput(long frameTimeNanos) { 4359 if (mConsumeBatchedInputScheduled) { 4360 mConsumeBatchedInputScheduled = false; 4361 if (mInputEventReceiver != null) { 4362 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4363 } 4364 doProcessInputEvents(); 4365 } 4366 } 4367 4368 final class TraversalRunnable implements Runnable { 4369 @Override 4370 public void run() { 4371 doTraversal(); 4372 } 4373 } 4374 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4375 4376 final class WindowInputEventReceiver extends InputEventReceiver { 4377 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4378 super(inputChannel, looper); 4379 } 4380 4381 @Override 4382 public void onInputEvent(InputEvent event) { 4383 enqueueInputEvent(event, this, 0, true); 4384 } 4385 4386 @Override 4387 public void onBatchedInputEventPending() { 4388 scheduleConsumeBatchedInput(); 4389 } 4390 4391 @Override 4392 public void dispose() { 4393 unscheduleConsumeBatchedInput(); 4394 super.dispose(); 4395 } 4396 } 4397 WindowInputEventReceiver mInputEventReceiver; 4398 4399 final class ConsumeBatchedInputRunnable implements Runnable { 4400 @Override 4401 public void run() { 4402 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4403 } 4404 } 4405 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4406 new ConsumeBatchedInputRunnable(); 4407 boolean mConsumeBatchedInputScheduled; 4408 4409 final class InvalidateOnAnimationRunnable implements Runnable { 4410 private boolean mPosted; 4411 private ArrayList<View> mViews = new ArrayList<View>(); 4412 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4413 new ArrayList<AttachInfo.InvalidateInfo>(); 4414 private View[] mTempViews; 4415 private AttachInfo.InvalidateInfo[] mTempViewRects; 4416 4417 public void addView(View view) { 4418 synchronized (this) { 4419 mViews.add(view); 4420 postIfNeededLocked(); 4421 } 4422 } 4423 4424 public void addViewRect(AttachInfo.InvalidateInfo info) { 4425 synchronized (this) { 4426 mViewRects.add(info); 4427 postIfNeededLocked(); 4428 } 4429 } 4430 4431 public void removeView(View view) { 4432 synchronized (this) { 4433 mViews.remove(view); 4434 4435 for (int i = mViewRects.size(); i-- > 0; ) { 4436 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4437 if (info.target == view) { 4438 mViewRects.remove(i); 4439 info.release(); 4440 } 4441 } 4442 4443 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4444 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4445 mPosted = false; 4446 } 4447 } 4448 } 4449 4450 @Override 4451 public void run() { 4452 final int viewCount; 4453 final int viewRectCount; 4454 synchronized (this) { 4455 mPosted = false; 4456 4457 viewCount = mViews.size(); 4458 if (viewCount != 0) { 4459 mTempViews = mViews.toArray(mTempViews != null 4460 ? mTempViews : new View[viewCount]); 4461 mViews.clear(); 4462 } 4463 4464 viewRectCount = mViewRects.size(); 4465 if (viewRectCount != 0) { 4466 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4467 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4468 mViewRects.clear(); 4469 } 4470 } 4471 4472 for (int i = 0; i < viewCount; i++) { 4473 mTempViews[i].invalidate(); 4474 mTempViews[i] = null; 4475 } 4476 4477 for (int i = 0; i < viewRectCount; i++) { 4478 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4479 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4480 info.release(); 4481 } 4482 } 4483 4484 private void postIfNeededLocked() { 4485 if (!mPosted) { 4486 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4487 mPosted = true; 4488 } 4489 } 4490 } 4491 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4492 new InvalidateOnAnimationRunnable(); 4493 4494 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4495 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4496 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4497 } 4498 4499 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4500 long delayMilliseconds) { 4501 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4502 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4503 } 4504 4505 public void dispatchInvalidateOnAnimation(View view) { 4506 mInvalidateOnAnimationRunnable.addView(view); 4507 } 4508 4509 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4510 mInvalidateOnAnimationRunnable.addViewRect(info); 4511 } 4512 4513 public void enqueueDisplayList(DisplayList displayList) { 4514 mDisplayLists.add(displayList); 4515 4516 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4517 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4518 mHandler.sendMessage(msg); 4519 } 4520 4521 public void dequeueDisplayList(DisplayList displayList) { 4522 if (mDisplayLists.remove(displayList)) { 4523 displayList.invalidate(); 4524 if (mDisplayLists.size() == 0) { 4525 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4526 } 4527 } 4528 } 4529 4530 public void cancelInvalidate(View view) { 4531 mHandler.removeMessages(MSG_INVALIDATE, view); 4532 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4533 // them to the pool 4534 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4535 mInvalidateOnAnimationRunnable.removeView(view); 4536 } 4537 4538 public void dispatchKey(KeyEvent event) { 4539 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4540 msg.setAsynchronous(true); 4541 mHandler.sendMessage(msg); 4542 } 4543 4544 public void dispatchKeyFromIme(KeyEvent event) { 4545 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4546 msg.setAsynchronous(true); 4547 mHandler.sendMessage(msg); 4548 } 4549 4550 public void dispatchUnhandledKey(KeyEvent event) { 4551 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4552 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4553 final int keyCode = event.getKeyCode(); 4554 final int metaState = event.getMetaState(); 4555 4556 // Check for fallback actions specified by the key character map. 4557 KeyCharacterMap.FallbackAction fallbackAction = 4558 kcm.getFallbackAction(keyCode, metaState); 4559 if (fallbackAction != null) { 4560 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4561 KeyEvent fallbackEvent = KeyEvent.obtain( 4562 event.getDownTime(), event.getEventTime(), 4563 event.getAction(), fallbackAction.keyCode, 4564 event.getRepeatCount(), fallbackAction.metaState, 4565 event.getDeviceId(), event.getScanCode(), 4566 flags, event.getSource(), null); 4567 fallbackAction.recycle(); 4568 4569 dispatchKey(fallbackEvent); 4570 } 4571 } 4572 } 4573 4574 public void dispatchAppVisibility(boolean visible) { 4575 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4576 msg.arg1 = visible ? 1 : 0; 4577 mHandler.sendMessage(msg); 4578 } 4579 4580 public void dispatchScreenStateChange(boolean on) { 4581 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4582 msg.arg1 = on ? 1 : 0; 4583 mHandler.sendMessage(msg); 4584 } 4585 4586 public void dispatchGetNewSurface() { 4587 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4588 mHandler.sendMessage(msg); 4589 } 4590 4591 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4592 Message msg = Message.obtain(); 4593 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4594 msg.arg1 = hasFocus ? 1 : 0; 4595 msg.arg2 = inTouchMode ? 1 : 0; 4596 mHandler.sendMessage(msg); 4597 } 4598 4599 public void dispatchCloseSystemDialogs(String reason) { 4600 Message msg = Message.obtain(); 4601 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4602 msg.obj = reason; 4603 mHandler.sendMessage(msg); 4604 } 4605 4606 public void dispatchDragEvent(DragEvent event) { 4607 final int what; 4608 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4609 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4610 mHandler.removeMessages(what); 4611 } else { 4612 what = MSG_DISPATCH_DRAG_EVENT; 4613 } 4614 Message msg = mHandler.obtainMessage(what, event); 4615 mHandler.sendMessage(msg); 4616 } 4617 4618 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4619 int localValue, int localChanges) { 4620 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4621 args.seq = seq; 4622 args.globalVisibility = globalVisibility; 4623 args.localValue = localValue; 4624 args.localChanges = localChanges; 4625 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4626 } 4627 4628 public void dispatchDoneAnimating() { 4629 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4630 } 4631 4632 public void dispatchCheckFocus() { 4633 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4634 // This will result in a call to checkFocus() below. 4635 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4636 } 4637 } 4638 4639 /** 4640 * Post a callback to send a 4641 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4642 * This event is send at most once every 4643 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4644 */ 4645 private void postSendWindowContentChangedCallback(View source) { 4646 if (mSendWindowContentChangedAccessibilityEvent == null) { 4647 mSendWindowContentChangedAccessibilityEvent = 4648 new SendWindowContentChangedAccessibilityEvent(); 4649 } 4650 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4651 if (oldSource == null) { 4652 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4653 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4654 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4655 } else { 4656 mSendWindowContentChangedAccessibilityEvent.mSource = 4657 getCommonPredecessor(oldSource, source); 4658 } 4659 } 4660 4661 /** 4662 * Remove a posted callback to send a 4663 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4664 */ 4665 private void removeSendWindowContentChangedCallback() { 4666 if (mSendWindowContentChangedAccessibilityEvent != null) { 4667 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4668 } 4669 } 4670 4671 public boolean showContextMenuForChild(View originalView) { 4672 return false; 4673 } 4674 4675 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4676 return null; 4677 } 4678 4679 public void createContextMenu(ContextMenu menu) { 4680 } 4681 4682 public void childDrawableStateChanged(View child) { 4683 } 4684 4685 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4686 if (mView == null) { 4687 return false; 4688 } 4689 // Intercept accessibility focus events fired by virtual nodes to keep 4690 // track of accessibility focus position in such nodes. 4691 final int eventType = event.getEventType(); 4692 switch (eventType) { 4693 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4694 final long sourceNodeId = event.getSourceNodeId(); 4695 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4696 sourceNodeId); 4697 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4698 if (source != null) { 4699 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4700 if (provider != null) { 4701 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4702 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4703 setAccessibilityFocus(source, node); 4704 } 4705 } 4706 } break; 4707 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4708 final long sourceNodeId = event.getSourceNodeId(); 4709 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4710 sourceNodeId); 4711 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4712 if (source != null) { 4713 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4714 if (provider != null) { 4715 setAccessibilityFocus(null, null); 4716 } 4717 } 4718 } break; 4719 } 4720 mAccessibilityManager.sendAccessibilityEvent(event); 4721 return true; 4722 } 4723 4724 @Override 4725 public void childAccessibilityStateChanged(View child) { 4726 postSendWindowContentChangedCallback(child); 4727 } 4728 4729 private View getCommonPredecessor(View first, View second) { 4730 if (mAttachInfo != null) { 4731 if (mTempHashSet == null) { 4732 mTempHashSet = new HashSet<View>(); 4733 } 4734 HashSet<View> seen = mTempHashSet; 4735 seen.clear(); 4736 View firstCurrent = first; 4737 while (firstCurrent != null) { 4738 seen.add(firstCurrent); 4739 ViewParent firstCurrentParent = firstCurrent.mParent; 4740 if (firstCurrentParent instanceof View) { 4741 firstCurrent = (View) firstCurrentParent; 4742 } else { 4743 firstCurrent = null; 4744 } 4745 } 4746 View secondCurrent = second; 4747 while (secondCurrent != null) { 4748 if (seen.contains(secondCurrent)) { 4749 seen.clear(); 4750 return secondCurrent; 4751 } 4752 ViewParent secondCurrentParent = secondCurrent.mParent; 4753 if (secondCurrentParent instanceof View) { 4754 secondCurrent = (View) secondCurrentParent; 4755 } else { 4756 secondCurrent = null; 4757 } 4758 } 4759 seen.clear(); 4760 } 4761 return null; 4762 } 4763 4764 void checkThread() { 4765 if (mThread != Thread.currentThread()) { 4766 throw new CalledFromWrongThreadException( 4767 "Only the original thread that created a view hierarchy can touch its views."); 4768 } 4769 } 4770 4771 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4772 // ViewAncestor never intercepts touch event, so this can be a no-op 4773 } 4774 4775 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4776 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4777 if (rectangle != null) { 4778 mTempRect.set(rectangle); 4779 mTempRect.offset(0, -mCurScrollY); 4780 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4781 try { 4782 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4783 } catch (RemoteException re) { 4784 /* ignore */ 4785 } 4786 } 4787 return scrolled; 4788 } 4789 4790 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4791 // Do nothing. 4792 } 4793 4794 class TakenSurfaceHolder extends BaseSurfaceHolder { 4795 @Override 4796 public boolean onAllowLockCanvas() { 4797 return mDrawingAllowed; 4798 } 4799 4800 @Override 4801 public void onRelayoutContainer() { 4802 // Not currently interesting -- from changing between fixed and layout size. 4803 } 4804 4805 public void setFormat(int format) { 4806 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4807 } 4808 4809 public void setType(int type) { 4810 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4811 } 4812 4813 @Override 4814 public void onUpdateSurface() { 4815 // We take care of format and type changes on our own. 4816 throw new IllegalStateException("Shouldn't be here"); 4817 } 4818 4819 public boolean isCreating() { 4820 return mIsCreating; 4821 } 4822 4823 @Override 4824 public void setFixedSize(int width, int height) { 4825 throw new UnsupportedOperationException( 4826 "Currently only support sizing from layout"); 4827 } 4828 4829 public void setKeepScreenOn(boolean screenOn) { 4830 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4831 } 4832 } 4833 4834 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4835 private WeakReference<ViewRootImpl> mViewAncestor; 4836 4837 public InputMethodCallback(ViewRootImpl viewAncestor) { 4838 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4839 } 4840 4841 @Override 4842 public void finishedEvent(int seq, boolean handled) { 4843 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4844 if (viewAncestor != null) { 4845 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4846 } 4847 } 4848 } 4849 4850 static class W extends IWindow.Stub { 4851 private final WeakReference<ViewRootImpl> mViewAncestor; 4852 private final IWindowSession mWindowSession; 4853 4854 W(ViewRootImpl viewAncestor) { 4855 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4856 mWindowSession = viewAncestor.mWindowSession; 4857 } 4858 4859 public void resized(Rect frame, Rect contentInsets, 4860 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4861 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4862 if (viewAncestor != null) { 4863 viewAncestor.dispatchResized(frame, contentInsets, 4864 visibleInsets, reportDraw, newConfig); 4865 } 4866 } 4867 4868 @Override 4869 public void moved(int newX, int newY) { 4870 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4871 if (viewAncestor != null) { 4872 viewAncestor.dispatchMoved(newX, newY); 4873 } 4874 } 4875 4876 public void dispatchAppVisibility(boolean visible) { 4877 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4878 if (viewAncestor != null) { 4879 viewAncestor.dispatchAppVisibility(visible); 4880 } 4881 } 4882 4883 public void dispatchScreenState(boolean on) { 4884 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4885 if (viewAncestor != null) { 4886 viewAncestor.dispatchScreenStateChange(on); 4887 } 4888 } 4889 4890 public void dispatchGetNewSurface() { 4891 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4892 if (viewAncestor != null) { 4893 viewAncestor.dispatchGetNewSurface(); 4894 } 4895 } 4896 4897 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4898 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4899 if (viewAncestor != null) { 4900 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4901 } 4902 } 4903 4904 private static int checkCallingPermission(String permission) { 4905 try { 4906 return ActivityManagerNative.getDefault().checkPermission( 4907 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4908 } catch (RemoteException e) { 4909 return PackageManager.PERMISSION_DENIED; 4910 } 4911 } 4912 4913 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4914 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4915 if (viewAncestor != null) { 4916 final View view = viewAncestor.mView; 4917 if (view != null) { 4918 if (checkCallingPermission(Manifest.permission.DUMP) != 4919 PackageManager.PERMISSION_GRANTED) { 4920 throw new SecurityException("Insufficient permissions to invoke" 4921 + " executeCommand() from pid=" + Binder.getCallingPid() 4922 + ", uid=" + Binder.getCallingUid()); 4923 } 4924 4925 OutputStream clientStream = null; 4926 try { 4927 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4928 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4929 } catch (IOException e) { 4930 e.printStackTrace(); 4931 } finally { 4932 if (clientStream != null) { 4933 try { 4934 clientStream.close(); 4935 } catch (IOException e) { 4936 e.printStackTrace(); 4937 } 4938 } 4939 } 4940 } 4941 } 4942 } 4943 4944 public void closeSystemDialogs(String reason) { 4945 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4946 if (viewAncestor != null) { 4947 viewAncestor.dispatchCloseSystemDialogs(reason); 4948 } 4949 } 4950 4951 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4952 boolean sync) { 4953 if (sync) { 4954 try { 4955 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4956 } catch (RemoteException e) { 4957 } 4958 } 4959 } 4960 4961 public void dispatchWallpaperCommand(String action, int x, int y, 4962 int z, Bundle extras, boolean sync) { 4963 if (sync) { 4964 try { 4965 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4966 } catch (RemoteException e) { 4967 } 4968 } 4969 } 4970 4971 /* Drag/drop */ 4972 public void dispatchDragEvent(DragEvent event) { 4973 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4974 if (viewAncestor != null) { 4975 viewAncestor.dispatchDragEvent(event); 4976 } 4977 } 4978 4979 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4980 int localValue, int localChanges) { 4981 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4982 if (viewAncestor != null) { 4983 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4984 localValue, localChanges); 4985 } 4986 } 4987 4988 public void doneAnimating() { 4989 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4990 if (viewAncestor != null) { 4991 viewAncestor.dispatchDoneAnimating(); 4992 } 4993 } 4994 } 4995 4996 /** 4997 * Maintains state information for a single trackball axis, generating 4998 * discrete (DPAD) movements based on raw trackball motion. 4999 */ 5000 static final class TrackballAxis { 5001 /** 5002 * The maximum amount of acceleration we will apply. 5003 */ 5004 static final float MAX_ACCELERATION = 20; 5005 5006 /** 5007 * The maximum amount of time (in milliseconds) between events in order 5008 * for us to consider the user to be doing fast trackball movements, 5009 * and thus apply an acceleration. 5010 */ 5011 static final long FAST_MOVE_TIME = 150; 5012 5013 /** 5014 * Scaling factor to the time (in milliseconds) between events to how 5015 * much to multiple/divide the current acceleration. When movement 5016 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5017 * FAST_MOVE_TIME it divides it. 5018 */ 5019 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5020 5021 float position; 5022 float absPosition; 5023 float acceleration = 1; 5024 long lastMoveTime = 0; 5025 int step; 5026 int dir; 5027 int nonAccelMovement; 5028 5029 void reset(int _step) { 5030 position = 0; 5031 acceleration = 1; 5032 lastMoveTime = 0; 5033 step = _step; 5034 dir = 0; 5035 } 5036 5037 /** 5038 * Add trackball movement into the state. If the direction of movement 5039 * has been reversed, the state is reset before adding the 5040 * movement (so that you don't have to compensate for any previously 5041 * collected movement before see the result of the movement in the 5042 * new direction). 5043 * 5044 * @return Returns the absolute value of the amount of movement 5045 * collected so far. 5046 */ 5047 float collect(float off, long time, String axis) { 5048 long normTime; 5049 if (off > 0) { 5050 normTime = (long)(off * FAST_MOVE_TIME); 5051 if (dir < 0) { 5052 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5053 position = 0; 5054 step = 0; 5055 acceleration = 1; 5056 lastMoveTime = 0; 5057 } 5058 dir = 1; 5059 } else if (off < 0) { 5060 normTime = (long)((-off) * FAST_MOVE_TIME); 5061 if (dir > 0) { 5062 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5063 position = 0; 5064 step = 0; 5065 acceleration = 1; 5066 lastMoveTime = 0; 5067 } 5068 dir = -1; 5069 } else { 5070 normTime = 0; 5071 } 5072 5073 // The number of milliseconds between each movement that is 5074 // considered "normal" and will not result in any acceleration 5075 // or deceleration, scaled by the offset we have here. 5076 if (normTime > 0) { 5077 long delta = time - lastMoveTime; 5078 lastMoveTime = time; 5079 float acc = acceleration; 5080 if (delta < normTime) { 5081 // The user is scrolling rapidly, so increase acceleration. 5082 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5083 if (scale > 1) acc *= scale; 5084 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5085 + off + " normTime=" + normTime + " delta=" + delta 5086 + " scale=" + scale + " acc=" + acc); 5087 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5088 } else { 5089 // The user is scrolling slowly, so decrease acceleration. 5090 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5091 if (scale > 1) acc /= scale; 5092 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5093 + off + " normTime=" + normTime + " delta=" + delta 5094 + " scale=" + scale + " acc=" + acc); 5095 acceleration = acc > 1 ? acc : 1; 5096 } 5097 } 5098 position += off; 5099 return (absPosition = Math.abs(position)); 5100 } 5101 5102 /** 5103 * Generate the number of discrete movement events appropriate for 5104 * the currently collected trackball movement. 5105 * 5106 * @param precision The minimum movement required to generate the 5107 * first discrete movement. 5108 * 5109 * @return Returns the number of discrete movements, either positive 5110 * or negative, or 0 if there is not enough trackball movement yet 5111 * for a discrete movement. 5112 */ 5113 int generate(float precision) { 5114 int movement = 0; 5115 nonAccelMovement = 0; 5116 do { 5117 final int dir = position >= 0 ? 1 : -1; 5118 switch (step) { 5119 // If we are going to execute the first step, then we want 5120 // to do this as soon as possible instead of waiting for 5121 // a full movement, in order to make things look responsive. 5122 case 0: 5123 if (absPosition < precision) { 5124 return movement; 5125 } 5126 movement += dir; 5127 nonAccelMovement += dir; 5128 step = 1; 5129 break; 5130 // If we have generated the first movement, then we need 5131 // to wait for the second complete trackball motion before 5132 // generating the second discrete movement. 5133 case 1: 5134 if (absPosition < 2) { 5135 return movement; 5136 } 5137 movement += dir; 5138 nonAccelMovement += dir; 5139 position += dir > 0 ? -2 : 2; 5140 absPosition = Math.abs(position); 5141 step = 2; 5142 break; 5143 // After the first two, we generate discrete movements 5144 // consistently with the trackball, applying an acceleration 5145 // if the trackball is moving quickly. This is a simple 5146 // acceleration on top of what we already compute based 5147 // on how quickly the wheel is being turned, to apply 5148 // a longer increasing acceleration to continuous movement 5149 // in one direction. 5150 default: 5151 if (absPosition < 1) { 5152 return movement; 5153 } 5154 movement += dir; 5155 position += dir >= 0 ? -1 : 1; 5156 absPosition = Math.abs(position); 5157 float acc = acceleration; 5158 acc *= 1.1f; 5159 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5160 break; 5161 } 5162 } while (true); 5163 } 5164 } 5165 5166 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5167 public CalledFromWrongThreadException(String msg) { 5168 super(msg); 5169 } 5170 } 5171 5172 private SurfaceHolder mHolder = new SurfaceHolder() { 5173 // we only need a SurfaceHolder for opengl. it would be nice 5174 // to implement everything else though, especially the callback 5175 // support (opengl doesn't make use of it right now, but eventually 5176 // will). 5177 public Surface getSurface() { 5178 return mSurface; 5179 } 5180 5181 public boolean isCreating() { 5182 return false; 5183 } 5184 5185 public void addCallback(Callback callback) { 5186 } 5187 5188 public void removeCallback(Callback callback) { 5189 } 5190 5191 public void setFixedSize(int width, int height) { 5192 } 5193 5194 public void setSizeFromLayout() { 5195 } 5196 5197 public void setFormat(int format) { 5198 } 5199 5200 public void setType(int type) { 5201 } 5202 5203 public void setKeepScreenOn(boolean screenOn) { 5204 } 5205 5206 public Canvas lockCanvas() { 5207 return null; 5208 } 5209 5210 public Canvas lockCanvas(Rect dirty) { 5211 return null; 5212 } 5213 5214 public void unlockCanvasAndPost(Canvas canvas) { 5215 } 5216 public Rect getSurfaceFrame() { 5217 return null; 5218 } 5219 }; 5220 5221 static RunQueue getRunQueue() { 5222 RunQueue rq = sRunQueues.get(); 5223 if (rq != null) { 5224 return rq; 5225 } 5226 rq = new RunQueue(); 5227 sRunQueues.set(rq); 5228 return rq; 5229 } 5230 5231 /** 5232 * The run queue is used to enqueue pending work from Views when no Handler is 5233 * attached. The work is executed during the next call to performTraversals on 5234 * the thread. 5235 * @hide 5236 */ 5237 static final class RunQueue { 5238 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5239 5240 void post(Runnable action) { 5241 postDelayed(action, 0); 5242 } 5243 5244 void postDelayed(Runnable action, long delayMillis) { 5245 HandlerAction handlerAction = new HandlerAction(); 5246 handlerAction.action = action; 5247 handlerAction.delay = delayMillis; 5248 5249 synchronized (mActions) { 5250 mActions.add(handlerAction); 5251 } 5252 } 5253 5254 void removeCallbacks(Runnable action) { 5255 final HandlerAction handlerAction = new HandlerAction(); 5256 handlerAction.action = action; 5257 5258 synchronized (mActions) { 5259 final ArrayList<HandlerAction> actions = mActions; 5260 5261 while (actions.remove(handlerAction)) { 5262 // Keep going 5263 } 5264 } 5265 } 5266 5267 void executeActions(Handler handler) { 5268 synchronized (mActions) { 5269 final ArrayList<HandlerAction> actions = mActions; 5270 final int count = actions.size(); 5271 5272 for (int i = 0; i < count; i++) { 5273 final HandlerAction handlerAction = actions.get(i); 5274 handler.postDelayed(handlerAction.action, handlerAction.delay); 5275 } 5276 5277 actions.clear(); 5278 } 5279 } 5280 5281 private static class HandlerAction { 5282 Runnable action; 5283 long delay; 5284 5285 @Override 5286 public boolean equals(Object o) { 5287 if (this == o) return true; 5288 if (o == null || getClass() != o.getClass()) return false; 5289 5290 HandlerAction that = (HandlerAction) o; 5291 return !(action != null ? !action.equals(that.action) : that.action != null); 5292 5293 } 5294 5295 @Override 5296 public int hashCode() { 5297 int result = action != null ? action.hashCode() : 0; 5298 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5299 return result; 5300 } 5301 } 5302 } 5303 5304 /** 5305 * Class for managing the accessibility interaction connection 5306 * based on the global accessibility state. 5307 */ 5308 final class AccessibilityInteractionConnectionManager 5309 implements AccessibilityStateChangeListener { 5310 public void onAccessibilityStateChanged(boolean enabled) { 5311 if (enabled) { 5312 ensureConnection(); 5313 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5314 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5315 View focusedView = mView.findFocus(); 5316 if (focusedView != null && focusedView != mView) { 5317 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5318 } 5319 } 5320 } else { 5321 ensureNoConnection(); 5322 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5323 } 5324 } 5325 5326 public void ensureConnection() { 5327 if (mAttachInfo != null) { 5328 final boolean registered = 5329 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5330 if (!registered) { 5331 mAttachInfo.mAccessibilityWindowId = 5332 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5333 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5334 } 5335 } 5336 } 5337 5338 public void ensureNoConnection() { 5339 final boolean registered = 5340 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5341 if (registered) { 5342 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5343 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5344 } 5345 } 5346 } 5347 5348 /** 5349 * This class is an interface this ViewAncestor provides to the 5350 * AccessibilityManagerService to the latter can interact with 5351 * the view hierarchy in this ViewAncestor. 5352 */ 5353 static final class AccessibilityInteractionConnection 5354 extends IAccessibilityInteractionConnection.Stub { 5355 private final WeakReference<ViewRootImpl> mViewRootImpl; 5356 5357 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5358 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5359 } 5360 5361 @Override 5362 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5363 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5364 int interrogatingPid, long interrogatingTid) { 5365 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5366 if (viewRootImpl != null && viewRootImpl.mView != null) { 5367 viewRootImpl.getAccessibilityInteractionController() 5368 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5369 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5370 } else { 5371 // We cannot make the call and notify the caller so it does not wait. 5372 try { 5373 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5374 } catch (RemoteException re) { 5375 /* best effort - ignore */ 5376 } 5377 } 5378 } 5379 5380 @Override 5381 public void performAccessibilityAction(long accessibilityNodeId, int action, 5382 Bundle arguments, int interactionId, 5383 IAccessibilityInteractionConnectionCallback callback, int flags, 5384 int interogatingPid, long interrogatingTid) { 5385 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5386 if (viewRootImpl != null && viewRootImpl.mView != null) { 5387 viewRootImpl.getAccessibilityInteractionController() 5388 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5389 interactionId, callback, flags, interogatingPid, interrogatingTid); 5390 } else { 5391 // We cannot make the call and notify the caller so it does not wait. 5392 try { 5393 callback.setPerformAccessibilityActionResult(false, interactionId); 5394 } catch (RemoteException re) { 5395 /* best effort - ignore */ 5396 } 5397 } 5398 } 5399 5400 @Override 5401 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5402 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5403 int interrogatingPid, long interrogatingTid) { 5404 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5405 if (viewRootImpl != null && viewRootImpl.mView != null) { 5406 viewRootImpl.getAccessibilityInteractionController() 5407 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5408 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5409 } else { 5410 // We cannot make the call and notify the caller so it does not wait. 5411 try { 5412 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5413 } catch (RemoteException re) { 5414 /* best effort - ignore */ 5415 } 5416 } 5417 } 5418 5419 @Override 5420 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5421 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5422 int interrogatingPid, long interrogatingTid) { 5423 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5424 if (viewRootImpl != null && viewRootImpl.mView != null) { 5425 viewRootImpl.getAccessibilityInteractionController() 5426 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5427 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5428 } else { 5429 // We cannot make the call and notify the caller so it does not wait. 5430 try { 5431 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5432 } catch (RemoteException re) { 5433 /* best effort - ignore */ 5434 } 5435 } 5436 } 5437 5438 @Override 5439 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5440 IAccessibilityInteractionConnectionCallback callback, int flags, 5441 int interrogatingPid, long interrogatingTid) { 5442 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5443 if (viewRootImpl != null && viewRootImpl.mView != null) { 5444 viewRootImpl.getAccessibilityInteractionController() 5445 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5446 flags, interrogatingPid, interrogatingTid); 5447 } else { 5448 // We cannot make the call and notify the caller so it does not wait. 5449 try { 5450 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5451 } catch (RemoteException re) { 5452 /* best effort - ignore */ 5453 } 5454 } 5455 } 5456 5457 @Override 5458 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5459 IAccessibilityInteractionConnectionCallback callback, int flags, 5460 int interrogatingPid, long interrogatingTid) { 5461 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5462 if (viewRootImpl != null && viewRootImpl.mView != null) { 5463 viewRootImpl.getAccessibilityInteractionController() 5464 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5465 callback, flags, interrogatingPid, interrogatingTid); 5466 } else { 5467 // We cannot make the call and notify the caller so it does not wait. 5468 try { 5469 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5470 } catch (RemoteException re) { 5471 /* best effort - ignore */ 5472 } 5473 } 5474 } 5475 } 5476 5477 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5478 public View mSource; 5479 5480 public void run() { 5481 if (mSource != null) { 5482 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5483 mSource.resetAccessibilityStateChanged(); 5484 mSource = null; 5485 } 5486 } 5487 } 5488} 5489