ViewRootImpl.java revision 9c79504225f60c72c947220b6aca928f11279e1c
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.Context; 25import android.content.pm.PackageManager; 26import android.content.res.CompatibilityInfo; 27import android.content.res.Configuration; 28import android.content.res.Resources; 29import android.graphics.Canvas; 30import android.graphics.Matrix; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.graphics.drawable.Drawable; 39import android.hardware.display.DisplayManager; 40import android.hardware.display.DisplayManager.DisplayListener; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Build; 44import android.os.Bundle; 45import android.os.Debug; 46import android.os.Handler; 47import android.os.Looper; 48import android.os.Message; 49import android.os.ParcelFileDescriptor; 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.Surface.OutOfResourcesException; 61import android.view.View.AttachInfo; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityManager; 65import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 66import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.R; 78import com.android.internal.os.SomeArgs; 79import com.android.internal.policy.PolicyManager; 80import com.android.internal.view.BaseSurfaceHolder; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.FileDescriptor; 84import java.io.IOException; 85import java.io.OutputStream; 86import java.io.PrintWriter; 87import java.lang.ref.WeakReference; 88import java.util.ArrayList; 89import java.util.HashSet; 90 91/** 92 * The top of a view hierarchy, implementing the needed protocol between View 93 * and the WindowManager. This is for the most part an internal implementation 94 * detail of {@link WindowManagerGlobal}. 95 * 96 * {@hide} 97 */ 98@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 99public final class ViewRootImpl implements ViewParent, 100 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 101 private static final String TAG = "ViewRootImpl"; 102 private static final boolean DBG = false; 103 private static final boolean LOCAL_LOGV = false; 104 /** @noinspection PointlessBooleanExpression*/ 105 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 106 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 107 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 108 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 109 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 110 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 111 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 112 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 113 private static final boolean DEBUG_FPS = false; 114 private static final boolean DEBUG_INPUT_STAGES = false || LOCAL_LOGV; 115 116 /** 117 * Set this system property to true to force the view hierarchy to render 118 * at 60 Hz. This can be used to measure the potential framerate. 119 */ 120 private static final String PROPERTY_PROFILE_RENDERING = "viewroot.profile_rendering"; 121 private static final String PROPERTY_MEDIA_DISABLED = "config.disable_media"; 122 123 // property used by emulator to determine display shape 124 public static final String PROPERTY_EMULATOR_CIRCULAR = "ro.emulator.circular"; 125 126 /** 127 * Maximum time we allow the user to roll the trackball enough to generate 128 * a key event, before resetting the counters. 129 */ 130 static final int MAX_TRACKBALL_DELAY = 250; 131 132 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 133 134 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 135 static boolean sFirstDrawComplete = false; 136 137 static final ArrayList<ComponentCallbacks> sConfigCallbacks 138 = new ArrayList<ComponentCallbacks>(); 139 140 final Context mContext; 141 final IWindowSession mWindowSession; 142 final Display mDisplay; 143 final DisplayManager mDisplayManager; 144 final String mBasePackageName; 145 146 final int[] mTmpLocation = new int[2]; 147 148 final TypedValue mTmpValue = new TypedValue(); 149 150 final Thread mThread; 151 152 final WindowLeaked mLocation; 153 154 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 155 156 final W mWindow; 157 158 final int mTargetSdkVersion; 159 160 int mSeq; 161 162 View mView; 163 164 View mAccessibilityFocusedHost; 165 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 166 167 int mViewVisibility; 168 boolean mAppVisible = true; 169 int mOrigWindowType = -1; 170 171 // Set to true if the owner of this window is in the stopped state, 172 // so the window should no longer be active. 173 boolean mStopped = false; 174 175 boolean mLastInCompatMode = false; 176 177 SurfaceHolder.Callback2 mSurfaceHolderCallback; 178 BaseSurfaceHolder mSurfaceHolder; 179 boolean mIsCreating; 180 boolean mDrawingAllowed; 181 182 final Region mTransparentRegion; 183 final Region mPreviousTransparentRegion; 184 185 int mWidth; 186 int mHeight; 187 Rect mDirty; 188 boolean mIsAnimating; 189 190 CompatibilityInfo.Translator mTranslator; 191 192 final View.AttachInfo mAttachInfo; 193 InputChannel mInputChannel; 194 InputQueue.Callback mInputQueueCallback; 195 InputQueue mInputQueue; 196 FallbackEventHandler mFallbackEventHandler; 197 Choreographer mChoreographer; 198 199 final Rect mTempRect; // used in the transaction to not thrash the heap. 200 final Rect mVisRect; // used to retrieve visible rect of focused view. 201 202 boolean mTraversalScheduled; 203 int mTraversalBarrier; 204 boolean mWillDrawSoon; 205 /** Set to true while in performTraversals for detecting when die(true) is called from internal 206 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 207 boolean mIsInTraversal; 208 boolean mApplyInsetsRequested; 209 boolean mLayoutRequested; 210 boolean mFirst; 211 boolean mReportNextDraw; 212 boolean mFullRedrawNeeded; 213 boolean mNewSurfaceNeeded; 214 boolean mHasHadWindowFocus; 215 boolean mLastWasImTarget; 216 boolean mWindowsAnimating; 217 boolean mDrawDuringWindowsAnimating; 218 boolean mIsDrawing; 219 int mLastSystemUiVisibility; 220 int mClientWindowLayoutFlags; 221 boolean mLastOverscanRequested; 222 223 // Pool of queued input events. 224 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 225 private QueuedInputEvent mQueuedInputEventPool; 226 private int mQueuedInputEventPoolSize; 227 228 /* Input event queue. 229 * Pending input events are input events waiting to be delivered to the input stages 230 * and handled by the application. 231 */ 232 QueuedInputEvent mPendingInputEventHead; 233 QueuedInputEvent mPendingInputEventTail; 234 int mPendingInputEventCount; 235 boolean mProcessInputEventsScheduled; 236 boolean mUnbufferedInputDispatch; 237 String mPendingInputEventQueueLengthCounterName = "pq"; 238 239 InputStage mFirstInputStage; 240 InputStage mFirstPostImeInputStage; 241 InputStage mSyntheticInputStage; 242 243 boolean mWindowAttributesChanged = false; 244 int mWindowAttributesChangesFlag = 0; 245 246 // These can be accessed by any thread, must be protected with a lock. 247 // Surface can never be reassigned or cleared (use Surface.clear()). 248 private final Surface mSurface = new Surface(); 249 250 boolean mAdded; 251 boolean mAddedTouchMode; 252 253 final DisplayAdjustments mDisplayAdjustments; 254 255 // These are accessed by multiple threads. 256 final Rect mWinFrame; // frame given by window manager. 257 258 final Rect mPendingOverscanInsets = new Rect(); 259 final Rect mPendingVisibleInsets = new Rect(); 260 final Rect mPendingStableInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mDispatchContentInsets = new Rect(); 266 final Rect mDispatchStableInsets = new Rect(); 267 268 final Configuration mLastConfiguration = new Configuration(); 269 final Configuration mPendingConfiguration = new Configuration(); 270 271 boolean mScrollMayChange; 272 int mSoftInputMode; 273 WeakReference<View> mLastScrolledFocus; 274 int mScrollY; 275 int mCurScrollY; 276 Scroller mScroller; 277 HardwareLayer mResizeBuffer; 278 long mResizeBufferStartTime; 279 int mResizeBufferDuration; 280 // Used to block the creation of the ResizeBuffer due to invalidations in 281 // the previous DisplayList tree that must prevent re-execution. 282 // Currently this means a functor was detached. 283 boolean mBlockResizeBuffer; 284 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 285 private ArrayList<LayoutTransition> mPendingTransitions; 286 287 final ViewConfiguration mViewConfiguration; 288 289 /* Drag/drop */ 290 ClipDescription mDragDescription; 291 View mCurrentDragView; 292 volatile Object mLocalDragState; 293 final PointF mDragPoint = new PointF(); 294 final PointF mLastTouchPoint = new PointF(); 295 296 private boolean mProfileRendering; 297 private Choreographer.FrameCallback mRenderProfiler; 298 private boolean mRenderProfilingEnabled; 299 300 private boolean mMediaDisabled; 301 302 // Variables to track frames per second, enabled via DEBUG_FPS flag 303 private long mFpsStartTime = -1; 304 private long mFpsPrevTime = -1; 305 private int mFpsNumFrames; 306 307 /** 308 * see {@link #playSoundEffect(int)} 309 */ 310 AudioManager mAudioManager; 311 312 final AccessibilityManager mAccessibilityManager; 313 314 AccessibilityInteractionController mAccessibilityInteractionController; 315 316 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 317 HighContrastTextManager mHighContrastTextManager; 318 319 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 320 321 HashSet<View> mTempHashSet; 322 323 private final int mDensity; 324 private final int mNoncompatDensity; 325 326 private boolean mInLayout = false; 327 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 328 boolean mHandlingLayoutInLayoutRequest = false; 329 330 private int mViewLayoutDirectionInitial; 331 332 /** Set to true once doDie() has been called. */ 333 private boolean mRemoved; 334 335 private boolean mIsEmulator; 336 private boolean mIsCircularEmulator; 337 private final boolean mWindowIsRound; 338 339 /** 340 * Consistency verifier for debugging purposes. 341 */ 342 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 343 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 344 new InputEventConsistencyVerifier(this, 0) : null; 345 346 static final class SystemUiVisibilityInfo { 347 int seq; 348 int globalVisibility; 349 int localValue; 350 int localChanges; 351 } 352 353 public ViewRootImpl(Context context, Display display) { 354 mContext = context; 355 mWindowSession = WindowManagerGlobal.getWindowSession(); 356 mDisplay = display; 357 mBasePackageName = context.getBasePackageName(); 358 359 mDisplayAdjustments = display.getDisplayAdjustments(); 360 361 mThread = Thread.currentThread(); 362 mLocation = new WindowLeaked(null); 363 mLocation.fillInStackTrace(); 364 mWidth = -1; 365 mHeight = -1; 366 mDirty = new Rect(); 367 mTempRect = new Rect(); 368 mVisRect = new Rect(); 369 mWinFrame = new Rect(); 370 mWindow = new W(this); 371 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 372 mViewVisibility = View.GONE; 373 mTransparentRegion = new Region(); 374 mPreviousTransparentRegion = new Region(); 375 mFirst = true; // true for the first time the view is added 376 mAdded = false; 377 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 378 mAccessibilityManager = AccessibilityManager.getInstance(context); 379 mAccessibilityInteractionConnectionManager = 380 new AccessibilityInteractionConnectionManager(); 381 mAccessibilityManager.addAccessibilityStateChangeListener( 382 mAccessibilityInteractionConnectionManager); 383 mHighContrastTextManager = new HighContrastTextManager(); 384 mAccessibilityManager.addHighTextContrastStateChangeListener( 385 mHighContrastTextManager); 386 mViewConfiguration = ViewConfiguration.get(context); 387 mDensity = context.getResources().getDisplayMetrics().densityDpi; 388 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 389 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 390 mChoreographer = Choreographer.getInstance(); 391 mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE); 392 loadSystemProperties(); 393 mWindowIsRound = context.getResources().getBoolean( 394 com.android.internal.R.bool.config_windowIsRound); 395 } 396 397 public static void addFirstDrawHandler(Runnable callback) { 398 synchronized (sFirstDrawHandlers) { 399 if (!sFirstDrawComplete) { 400 sFirstDrawHandlers.add(callback); 401 } 402 } 403 } 404 405 public static void addConfigCallback(ComponentCallbacks callback) { 406 synchronized (sConfigCallbacks) { 407 sConfigCallbacks.add(callback); 408 } 409 } 410 411 // FIXME for perf testing only 412 private boolean mProfile = false; 413 414 /** 415 * Call this to profile the next traversal call. 416 * FIXME for perf testing only. Remove eventually 417 */ 418 public void profile() { 419 mProfile = true; 420 } 421 422 /** 423 * Indicates whether we are in touch mode. Calling this method triggers an IPC 424 * call and should be avoided whenever possible. 425 * 426 * @return True, if the device is in touch mode, false otherwise. 427 * 428 * @hide 429 */ 430 static boolean isInTouchMode() { 431 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 432 if (windowSession != null) { 433 try { 434 return windowSession.getInTouchMode(); 435 } catch (RemoteException e) { 436 } 437 } 438 return false; 439 } 440 441 /** 442 * We have one child 443 */ 444 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 445 synchronized (this) { 446 if (mView == null) { 447 mView = view; 448 449 mAttachInfo.mDisplayState = mDisplay.getState(); 450 mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); 451 452 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 453 mFallbackEventHandler.setView(view); 454 mWindowAttributes.copyFrom(attrs); 455 if (mWindowAttributes.packageName == null) { 456 mWindowAttributes.packageName = mBasePackageName; 457 } 458 attrs = mWindowAttributes; 459 // Keep track of the actual window flags supplied by the client. 460 mClientWindowLayoutFlags = attrs.flags; 461 462 setAccessibilityFocus(null, null); 463 464 if (view instanceof RootViewSurfaceTaker) { 465 mSurfaceHolderCallback = 466 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 467 if (mSurfaceHolderCallback != null) { 468 mSurfaceHolder = new TakenSurfaceHolder(); 469 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 470 } 471 } 472 473 // Compute surface insets required to draw at specified Z value. 474 // TODO: Use real shadow insets for a constant max Z. 475 final int surfaceInset = (int) Math.ceil(view.getZ() * 2); 476 attrs.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset); 477 478 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 479 mTranslator = compatibilityInfo.getTranslator(); 480 mDisplayAdjustments.setActivityToken(attrs.token); 481 482 // If the application owns the surface, don't enable hardware acceleration 483 if (mSurfaceHolder == null) { 484 enableHardwareAcceleration(attrs); 485 } 486 487 boolean restore = false; 488 if (mTranslator != null) { 489 mSurface.setCompatibilityTranslator(mTranslator); 490 restore = true; 491 attrs.backup(); 492 mTranslator.translateWindowLayout(attrs); 493 } 494 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 495 496 if (!compatibilityInfo.supportsScreen()) { 497 attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 498 mLastInCompatMode = true; 499 } 500 501 mSoftInputMode = attrs.softInputMode; 502 mWindowAttributesChanged = true; 503 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 504 mAttachInfo.mRootView = view; 505 mAttachInfo.mScalingRequired = mTranslator != null; 506 mAttachInfo.mApplicationScale = 507 mTranslator == null ? 1.0f : mTranslator.applicationScale; 508 if (panelParentView != null) { 509 mAttachInfo.mPanelParentWindowToken 510 = panelParentView.getApplicationWindowToken(); 511 } 512 mAdded = true; 513 int res; /* = WindowManagerImpl.ADD_OKAY; */ 514 515 // Schedule the first layout -before- adding to the window 516 // manager, to make sure we do the relayout before receiving 517 // any other events from the system. 518 requestLayout(); 519 if ((mWindowAttributes.inputFeatures 520 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 521 mInputChannel = new InputChannel(); 522 } 523 try { 524 mOrigWindowType = mWindowAttributes.type; 525 mAttachInfo.mRecomputeGlobalAttributes = true; 526 collectViewAttributes(); 527 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 528 getHostVisibility(), mDisplay.getDisplayId(), 529 mAttachInfo.mContentInsets, mInputChannel); 530 } catch (RemoteException e) { 531 mAdded = false; 532 mView = null; 533 mAttachInfo.mRootView = null; 534 mInputChannel = null; 535 mFallbackEventHandler.setView(null); 536 unscheduleTraversals(); 537 setAccessibilityFocus(null, null); 538 throw new RuntimeException("Adding window failed", e); 539 } finally { 540 if (restore) { 541 attrs.restore(); 542 } 543 } 544 545 if (mTranslator != null) { 546 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 547 } 548 mPendingOverscanInsets.set(0, 0, 0, 0); 549 mPendingContentInsets.set(mAttachInfo.mContentInsets); 550 mPendingStableInsets.set(mAttachInfo.mStableInsets); 551 mPendingVisibleInsets.set(0, 0, 0, 0); 552 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 553 if (res < WindowManagerGlobal.ADD_OKAY) { 554 mAttachInfo.mRootView = null; 555 mAdded = false; 556 mFallbackEventHandler.setView(null); 557 unscheduleTraversals(); 558 setAccessibilityFocus(null, null); 559 switch (res) { 560 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 561 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 562 throw new WindowManager.BadTokenException( 563 "Unable to add window -- token " + attrs.token 564 + " is not valid; is your activity running?"); 565 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 566 throw new WindowManager.BadTokenException( 567 "Unable to add window -- token " + attrs.token 568 + " is not for an application"); 569 case WindowManagerGlobal.ADD_APP_EXITING: 570 throw new WindowManager.BadTokenException( 571 "Unable to add window -- app for token " + attrs.token 572 + " is exiting"); 573 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 574 throw new WindowManager.BadTokenException( 575 "Unable to add window -- window " + mWindow 576 + " has already been added"); 577 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 578 // Silently ignore -- we would have just removed it 579 // right away, anyway. 580 return; 581 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 582 throw new WindowManager.BadTokenException( 583 "Unable to add window " + mWindow + 584 " -- another window of this type already exists"); 585 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 586 throw new WindowManager.BadTokenException( 587 "Unable to add window " + mWindow + 588 " -- permission denied for this window type"); 589 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 590 throw new WindowManager.InvalidDisplayException( 591 "Unable to add window " + mWindow + 592 " -- the specified display can not be found"); 593 } 594 throw new RuntimeException( 595 "Unable to add window -- unknown error code " + res); 596 } 597 598 if (view instanceof RootViewSurfaceTaker) { 599 mInputQueueCallback = 600 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 601 } 602 if (mInputChannel != null) { 603 if (mInputQueueCallback != null) { 604 mInputQueue = new InputQueue(); 605 mInputQueueCallback.onInputQueueCreated(mInputQueue); 606 } 607 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 608 Looper.myLooper()); 609 } 610 611 view.assignParent(this); 612 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 613 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 614 615 if (mAccessibilityManager.isEnabled()) { 616 mAccessibilityInteractionConnectionManager.ensureConnection(); 617 } 618 619 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 620 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 621 } 622 623 // Set up the input pipeline. 624 CharSequence counterSuffix = attrs.getTitle(); 625 mSyntheticInputStage = new SyntheticInputStage(); 626 InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage); 627 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 628 "aq:native-post-ime:" + counterSuffix); 629 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 630 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 631 "aq:ime:" + counterSuffix); 632 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 633 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 634 "aq:native-pre-ime:" + counterSuffix); 635 636 mFirstInputStage = nativePreImeStage; 637 mFirstPostImeInputStage = earlyPostImeStage; 638 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 639 } 640 } 641 } 642 643 /** Whether the window is in local focus mode or not */ 644 private boolean isInLocalFocusMode() { 645 return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0; 646 } 647 648 void destroyHardwareResources() { 649 if (mAttachInfo.mHardwareRenderer != null) { 650 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 651 mAttachInfo.mHardwareRenderer.destroy(); 652 } 653 } 654 655 public void detachFunctor(long functor) { 656 // TODO: Make the resize buffer some other way to not need this block 657 mBlockResizeBuffer = true; 658 if (mAttachInfo.mHardwareRenderer != null) { 659 // Fence so that any pending invokeFunctor() messages will be processed 660 // before we return from detachFunctor. 661 mAttachInfo.mHardwareRenderer.stopDrawing(); 662 } 663 } 664 665 /** 666 * Schedules the functor for execution in either kModeProcess or 667 * kModeProcessNoContext, depending on whether or not there is an EGLContext. 668 * 669 * @param functor The native functor to invoke 670 * @param waitForCompletion If true, this will not return until the functor 671 * has invoked. If false, the functor may be invoked 672 * asynchronously. 673 */ 674 public void invokeFunctor(long functor, boolean waitForCompletion) { 675 ThreadedRenderer.invokeFunctor(functor, waitForCompletion); 676 } 677 678 public void registerAnimatingRenderNode(RenderNode animator) { 679 if (mAttachInfo.mHardwareRenderer != null) { 680 mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator); 681 } else { 682 if (mAttachInfo.mPendingAnimatingRenderNodes == null) { 683 mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>(); 684 } 685 mAttachInfo.mPendingAnimatingRenderNodes.add(animator); 686 } 687 } 688 689 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 690 mAttachInfo.mHardwareAccelerated = false; 691 mAttachInfo.mHardwareAccelerationRequested = false; 692 693 // Don't enable hardware acceleration when the application is in compatibility mode 694 if (mTranslator != null) return; 695 696 // Try to enable hardware acceleration if requested 697 final boolean hardwareAccelerated = 698 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 699 700 if (hardwareAccelerated) { 701 if (!HardwareRenderer.isAvailable()) { 702 return; 703 } 704 705 // Persistent processes (including the system) should not do 706 // accelerated rendering on low-end devices. In that case, 707 // sRendererDisabled will be set. In addition, the system process 708 // itself should never do accelerated rendering. In that case, both 709 // sRendererDisabled and sSystemRendererDisabled are set. When 710 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 711 // can be used by code on the system process to escape that and enable 712 // HW accelerated drawing. (This is basically for the lock screen.) 713 714 final boolean fakeHwAccelerated = (attrs.privateFlags & 715 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 716 final boolean forceHwAccelerated = (attrs.privateFlags & 717 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 718 719 if (fakeHwAccelerated) { 720 // This is exclusively for the preview windows the window manager 721 // shows for launching applications, so they will look more like 722 // the app being launched. 723 mAttachInfo.mHardwareAccelerationRequested = true; 724 } else if (!HardwareRenderer.sRendererDisabled 725 || (HardwareRenderer.sSystemRendererDisabled && forceHwAccelerated)) { 726 if (mAttachInfo.mHardwareRenderer != null) { 727 mAttachInfo.mHardwareRenderer.destroy(); 728 } 729 730 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 731 mAttachInfo.mHardwareRenderer = HardwareRenderer.create(mContext, translucent); 732 if (mAttachInfo.mHardwareRenderer != null) { 733 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 734 mAttachInfo.mHardwareAccelerated = 735 mAttachInfo.mHardwareAccelerationRequested = true; 736 } 737 } 738 } 739 } 740 741 public View getView() { 742 return mView; 743 } 744 745 final WindowLeaked getLocation() { 746 return mLocation; 747 } 748 749 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 750 synchronized (this) { 751 final int oldInsetLeft = mWindowAttributes.surfaceInsets.left; 752 final int oldInsetTop = mWindowAttributes.surfaceInsets.top; 753 final int oldInsetRight = mWindowAttributes.surfaceInsets.right; 754 final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom; 755 final int oldSoftInputMode = mWindowAttributes.softInputMode; 756 757 // Keep track of the actual window flags supplied by the client. 758 mClientWindowLayoutFlags = attrs.flags; 759 760 // Preserve compatible window flag if exists. 761 final int compatibleWindowFlag = mWindowAttributes.privateFlags 762 & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 763 764 // Transfer over system UI visibility values as they carry current state. 765 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 766 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 767 768 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 769 if ((mWindowAttributesChangesFlag 770 & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) { 771 // Recompute system ui visibility. 772 mAttachInfo.mRecomputeGlobalAttributes = true; 773 } 774 if (mWindowAttributes.packageName == null) { 775 mWindowAttributes.packageName = mBasePackageName; 776 } 777 mWindowAttributes.privateFlags |= compatibleWindowFlag; 778 779 // Restore old surface insets. 780 mWindowAttributes.surfaceInsets.set( 781 oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom); 782 783 applyKeepScreenOnFlag(mWindowAttributes); 784 785 if (newView) { 786 mSoftInputMode = attrs.softInputMode; 787 requestLayout(); 788 } 789 790 // Don't lose the mode we last auto-computed. 791 if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 792 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 793 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 794 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 795 | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 796 } 797 798 mWindowAttributesChanged = true; 799 scheduleTraversals(); 800 } 801 } 802 803 void handleAppVisibility(boolean visible) { 804 if (mAppVisible != visible) { 805 mAppVisible = visible; 806 scheduleTraversals(); 807 if (!mAppVisible) { 808 WindowManagerGlobal.trimForeground(); 809 } 810 } 811 } 812 813 void handleGetNewSurface() { 814 mNewSurfaceNeeded = true; 815 mFullRedrawNeeded = true; 816 scheduleTraversals(); 817 } 818 819 private final DisplayListener mDisplayListener = new DisplayListener() { 820 @Override 821 public void onDisplayChanged(int displayId) { 822 if (mView != null && mDisplay.getDisplayId() == displayId) { 823 final int oldDisplayState = mAttachInfo.mDisplayState; 824 final int newDisplayState = mDisplay.getState(); 825 if (oldDisplayState != newDisplayState) { 826 mAttachInfo.mDisplayState = newDisplayState; 827 if (oldDisplayState != Display.STATE_UNKNOWN) { 828 final int oldScreenState = toViewScreenState(oldDisplayState); 829 final int newScreenState = toViewScreenState(newDisplayState); 830 if (oldScreenState != newScreenState) { 831 mView.dispatchScreenStateChanged(newScreenState); 832 } 833 if (oldDisplayState == Display.STATE_OFF) { 834 // Draw was suppressed so we need to for it to happen here. 835 mFullRedrawNeeded = true; 836 scheduleTraversals(); 837 } 838 } 839 } 840 } 841 } 842 843 @Override 844 public void onDisplayRemoved(int displayId) { 845 } 846 847 @Override 848 public void onDisplayAdded(int displayId) { 849 } 850 851 private int toViewScreenState(int displayState) { 852 return displayState == Display.STATE_OFF ? 853 View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON; 854 } 855 }; 856 857 @Override 858 public void requestFitSystemWindows() { 859 checkThread(); 860 mApplyInsetsRequested = true; 861 scheduleTraversals(); 862 } 863 864 @Override 865 public void requestLayout() { 866 if (!mHandlingLayoutInLayoutRequest) { 867 checkThread(); 868 mLayoutRequested = true; 869 scheduleTraversals(); 870 } 871 } 872 873 @Override 874 public boolean isLayoutRequested() { 875 return mLayoutRequested; 876 } 877 878 void invalidate() { 879 mDirty.set(0, 0, mWidth, mHeight); 880 if (!mWillDrawSoon) { 881 scheduleTraversals(); 882 } 883 } 884 885 void invalidateWorld(View view) { 886 view.invalidate(); 887 if (view instanceof ViewGroup) { 888 ViewGroup parent = (ViewGroup) view; 889 for (int i = 0; i < parent.getChildCount(); i++) { 890 invalidateWorld(parent.getChildAt(i)); 891 } 892 } 893 } 894 895 @Override 896 public void invalidateChild(View child, Rect dirty) { 897 invalidateChildInParent(null, dirty); 898 } 899 900 @Override 901 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 902 checkThread(); 903 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 904 905 if (dirty == null) { 906 invalidate(); 907 return null; 908 } else if (dirty.isEmpty() && !mIsAnimating) { 909 return null; 910 } 911 912 if (mCurScrollY != 0 || mTranslator != null) { 913 mTempRect.set(dirty); 914 dirty = mTempRect; 915 if (mCurScrollY != 0) { 916 dirty.offset(0, -mCurScrollY); 917 } 918 if (mTranslator != null) { 919 mTranslator.translateRectInAppWindowToScreen(dirty); 920 } 921 if (mAttachInfo.mScalingRequired) { 922 dirty.inset(-1, -1); 923 } 924 } 925 926 final Rect localDirty = mDirty; 927 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 928 mAttachInfo.mSetIgnoreDirtyState = true; 929 mAttachInfo.mIgnoreDirtyState = true; 930 } 931 932 // Add the new dirty rect to the current one 933 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 934 // Intersect with the bounds of the window to skip 935 // updates that lie outside of the visible region 936 final float appScale = mAttachInfo.mApplicationScale; 937 final boolean intersected = localDirty.intersect(0, 0, 938 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 939 if (!intersected) { 940 localDirty.setEmpty(); 941 } 942 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 943 scheduleTraversals(); 944 } 945 946 return null; 947 } 948 949 void setStopped(boolean stopped) { 950 if (mStopped != stopped) { 951 mStopped = stopped; 952 if (!stopped) { 953 scheduleTraversals(); 954 } 955 } 956 } 957 958 @Override 959 public ViewParent getParent() { 960 return null; 961 } 962 963 @Override 964 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 965 if (child != mView) { 966 throw new RuntimeException("child is not mine, honest!"); 967 } 968 // Note: don't apply scroll offset, because we want to know its 969 // visibility in the virtual canvas being given to the view hierarchy. 970 return r.intersect(0, 0, mWidth, mHeight); 971 } 972 973 @Override 974 public void bringChildToFront(View child) { 975 } 976 977 int getHostVisibility() { 978 return mAppVisible ? mView.getVisibility() : View.GONE; 979 } 980 981 void disposeResizeBuffer() { 982 if (mResizeBuffer != null) { 983 mResizeBuffer.destroy(); 984 mResizeBuffer = null; 985 } 986 } 987 988 /** 989 * Add LayoutTransition to the list of transitions to be started in the next traversal. 990 * This list will be cleared after the transitions on the list are start()'ed. These 991 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 992 * happens during the layout phase of traversal, which we want to complete before any of the 993 * animations are started (because those animations may side-effect properties that layout 994 * depends upon, like the bounding rectangles of the affected views). So we add the transition 995 * to the list and it is started just prior to starting the drawing phase of traversal. 996 * 997 * @param transition The LayoutTransition to be started on the next traversal. 998 * 999 * @hide 1000 */ 1001 public void requestTransitionStart(LayoutTransition transition) { 1002 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 1003 if (mPendingTransitions == null) { 1004 mPendingTransitions = new ArrayList<LayoutTransition>(); 1005 } 1006 mPendingTransitions.add(transition); 1007 } 1008 } 1009 1010 /** 1011 * Notifies the HardwareRenderer that a new frame will be coming soon. 1012 * Currently only {@link ThreadedRenderer} cares about this, and uses 1013 * this knowledge to adjust the scheduling of off-thread animations 1014 */ 1015 void notifyRendererOfFramePending() { 1016 if (mAttachInfo.mHardwareRenderer != null) { 1017 mAttachInfo.mHardwareRenderer.notifyFramePending(); 1018 } 1019 } 1020 1021 void scheduleTraversals() { 1022 if (!mTraversalScheduled) { 1023 mTraversalScheduled = true; 1024 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 1025 mChoreographer.postCallback( 1026 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1027 if (!mUnbufferedInputDispatch) { 1028 scheduleConsumeBatchedInput(); 1029 } 1030 notifyRendererOfFramePending(); 1031 } 1032 } 1033 1034 void unscheduleTraversals() { 1035 if (mTraversalScheduled) { 1036 mTraversalScheduled = false; 1037 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1038 mChoreographer.removeCallbacks( 1039 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1040 } 1041 } 1042 1043 void doTraversal() { 1044 if (mTraversalScheduled) { 1045 mTraversalScheduled = false; 1046 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1047 1048 if (mProfile) { 1049 Debug.startMethodTracing("ViewAncestor"); 1050 } 1051 1052 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1053 try { 1054 performTraversals(); 1055 } finally { 1056 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1057 } 1058 1059 if (mProfile) { 1060 Debug.stopMethodTracing(); 1061 mProfile = false; 1062 } 1063 } 1064 } 1065 1066 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1067 // Update window's global keep screen on flag: if a view has requested 1068 // that the screen be kept on, then it is always set; otherwise, it is 1069 // set to whatever the client last requested for the global state. 1070 if (mAttachInfo.mKeepScreenOn) { 1071 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1072 } else { 1073 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1074 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1075 } 1076 } 1077 1078 private boolean collectViewAttributes() { 1079 if (mAttachInfo.mRecomputeGlobalAttributes) { 1080 //Log.i(TAG, "Computing view hierarchy attributes!"); 1081 mAttachInfo.mRecomputeGlobalAttributes = false; 1082 boolean oldScreenOn = mAttachInfo.mKeepScreenOn; 1083 mAttachInfo.mKeepScreenOn = false; 1084 mAttachInfo.mSystemUiVisibility = 0; 1085 mAttachInfo.mHasSystemUiListeners = false; 1086 mView.dispatchCollectViewAttributes(mAttachInfo, 0); 1087 mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility; 1088 WindowManager.LayoutParams params = mWindowAttributes; 1089 mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params); 1090 if (mAttachInfo.mKeepScreenOn != oldScreenOn 1091 || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1092 || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1093 applyKeepScreenOnFlag(params); 1094 params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1095 params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners; 1096 mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility); 1097 return true; 1098 } 1099 } 1100 return false; 1101 } 1102 1103 private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) { 1104 int vis = 0; 1105 // Translucent decor window flags imply stable system ui visibility. 1106 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) { 1107 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; 1108 } 1109 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) { 1110 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 1111 } 1112 return vis; 1113 } 1114 1115 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1116 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1117 int childWidthMeasureSpec; 1118 int childHeightMeasureSpec; 1119 boolean windowSizeMayChange = false; 1120 1121 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1122 "Measuring " + host + " in display " + desiredWindowWidth 1123 + "x" + desiredWindowHeight + "..."); 1124 1125 boolean goodMeasure = false; 1126 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1127 // On large screens, we don't want to allow dialogs to just 1128 // stretch to fill the entire width of the screen to display 1129 // one line of text. First try doing the layout at a smaller 1130 // size to see if it will fit. 1131 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1132 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1133 int baseSize = 0; 1134 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1135 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1136 } 1137 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1138 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1139 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1140 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1141 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1142 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1143 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1144 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1145 goodMeasure = true; 1146 } else { 1147 // Didn't fit in that size... try expanding a bit. 1148 baseSize = (baseSize+desiredWindowWidth)/2; 1149 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1150 + baseSize); 1151 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1152 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1153 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1154 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1155 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1156 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1157 goodMeasure = true; 1158 } 1159 } 1160 } 1161 } 1162 1163 if (!goodMeasure) { 1164 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1165 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1166 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1167 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1168 windowSizeMayChange = true; 1169 } 1170 } 1171 1172 if (DBG) { 1173 System.out.println("======================================"); 1174 System.out.println("performTraversals -- after measure"); 1175 host.debug(); 1176 } 1177 1178 return windowSizeMayChange; 1179 } 1180 1181 /** 1182 * Modifies the input matrix such that it maps view-local coordinates to 1183 * on-screen coordinates. 1184 * 1185 * @param m input matrix to modify 1186 */ 1187 void transformMatrixToGlobal(Matrix m) { 1188 m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 1189 } 1190 1191 /** 1192 * Modifies the input matrix such that it maps on-screen coordinates to 1193 * view-local coordinates. 1194 * 1195 * @param m input matrix to modify 1196 */ 1197 void transformMatrixToLocal(Matrix m) { 1198 m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 1199 } 1200 1201 void dispatchApplyInsets(View host) { 1202 mDispatchContentInsets.set(mAttachInfo.mContentInsets); 1203 mDispatchStableInsets.set(mAttachInfo.mStableInsets); 1204 final boolean isRound = (mIsEmulator && mIsCircularEmulator) || mWindowIsRound; 1205 host.dispatchApplyWindowInsets(new WindowInsets( 1206 mDispatchContentInsets, null /* windowDecorInsets */, 1207 mDispatchStableInsets, isRound)); 1208 } 1209 1210 private void performTraversals() { 1211 // cache mView since it is used so much below... 1212 final View host = mView; 1213 1214 if (DBG) { 1215 System.out.println("======================================"); 1216 System.out.println("performTraversals"); 1217 host.debug(); 1218 } 1219 1220 if (host == null || !mAdded) 1221 return; 1222 1223 mIsInTraversal = true; 1224 mWillDrawSoon = true; 1225 boolean windowSizeMayChange = false; 1226 boolean newSurface = false; 1227 boolean surfaceChanged = false; 1228 WindowManager.LayoutParams lp = mWindowAttributes; 1229 1230 int desiredWindowWidth; 1231 int desiredWindowHeight; 1232 1233 final int viewVisibility = getHostVisibility(); 1234 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1235 || mNewSurfaceNeeded; 1236 1237 WindowManager.LayoutParams params = null; 1238 if (mWindowAttributesChanged) { 1239 mWindowAttributesChanged = false; 1240 surfaceChanged = true; 1241 params = lp; 1242 } 1243 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 1244 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1245 params = lp; 1246 mFullRedrawNeeded = true; 1247 mLayoutRequested = true; 1248 if (mLastInCompatMode) { 1249 params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1250 mLastInCompatMode = false; 1251 } else { 1252 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1253 mLastInCompatMode = true; 1254 } 1255 } 1256 1257 mWindowAttributesChangesFlag = 0; 1258 1259 Rect frame = mWinFrame; 1260 if (mFirst) { 1261 mFullRedrawNeeded = true; 1262 mLayoutRequested = true; 1263 1264 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1265 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1266 // NOTE -- system code, won't try to do compat mode. 1267 Point size = new Point(); 1268 mDisplay.getRealSize(size); 1269 desiredWindowWidth = size.x; 1270 desiredWindowHeight = size.y; 1271 } else { 1272 DisplayMetrics packageMetrics = 1273 mView.getContext().getResources().getDisplayMetrics(); 1274 desiredWindowWidth = packageMetrics.widthPixels; 1275 desiredWindowHeight = packageMetrics.heightPixels; 1276 } 1277 1278 // We used to use the following condition to choose 32 bits drawing caches: 1279 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1280 // However, windows are now always 32 bits by default, so choose 32 bits 1281 mAttachInfo.mUse32BitDrawingCache = true; 1282 mAttachInfo.mHasWindowFocus = false; 1283 mAttachInfo.mWindowVisibility = viewVisibility; 1284 mAttachInfo.mRecomputeGlobalAttributes = false; 1285 viewVisibilityChanged = false; 1286 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1287 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1288 // Set the layout direction if it has not been set before (inherit is the default) 1289 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1290 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1291 } 1292 host.dispatchAttachedToWindow(mAttachInfo, 0); 1293 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1294 dispatchApplyInsets(host); 1295 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1296 1297 } else { 1298 desiredWindowWidth = frame.width(); 1299 desiredWindowHeight = frame.height(); 1300 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1301 if (DEBUG_ORIENTATION) Log.v(TAG, 1302 "View " + host + " resized to: " + frame); 1303 mFullRedrawNeeded = true; 1304 mLayoutRequested = true; 1305 windowSizeMayChange = true; 1306 } 1307 } 1308 1309 if (viewVisibilityChanged) { 1310 mAttachInfo.mWindowVisibility = viewVisibility; 1311 host.dispatchWindowVisibilityChanged(viewVisibility); 1312 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1313 destroyHardwareResources(); 1314 } 1315 if (viewVisibility == View.GONE) { 1316 // After making a window gone, we will count it as being 1317 // shown for the first time the next time it gets focus. 1318 mHasHadWindowFocus = false; 1319 } 1320 } 1321 1322 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1323 getRunQueue().executeActions(mAttachInfo.mHandler); 1324 1325 boolean insetsChanged = false; 1326 1327 boolean layoutRequested = mLayoutRequested && !mStopped; 1328 if (layoutRequested) { 1329 1330 final Resources res = mView.getContext().getResources(); 1331 1332 if (mFirst) { 1333 // make sure touch mode code executes by setting cached value 1334 // to opposite of the added touch mode. 1335 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1336 ensureTouchModeLocally(mAddedTouchMode); 1337 } else { 1338 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1339 insetsChanged = true; 1340 } 1341 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1342 insetsChanged = true; 1343 } 1344 if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) { 1345 insetsChanged = true; 1346 } 1347 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1348 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1349 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1350 + mAttachInfo.mVisibleInsets); 1351 } 1352 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1353 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1354 windowSizeMayChange = true; 1355 1356 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1357 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1358 // NOTE -- system code, won't try to do compat mode. 1359 Point size = new Point(); 1360 mDisplay.getRealSize(size); 1361 desiredWindowWidth = size.x; 1362 desiredWindowHeight = size.y; 1363 } else { 1364 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1365 desiredWindowWidth = packageMetrics.widthPixels; 1366 desiredWindowHeight = packageMetrics.heightPixels; 1367 } 1368 } 1369 } 1370 1371 // Ask host how big it wants to be 1372 windowSizeMayChange |= measureHierarchy(host, lp, res, 1373 desiredWindowWidth, desiredWindowHeight); 1374 } 1375 1376 if (collectViewAttributes()) { 1377 params = lp; 1378 } 1379 if (mAttachInfo.mForceReportNewAttributes) { 1380 mAttachInfo.mForceReportNewAttributes = false; 1381 params = lp; 1382 } 1383 1384 if (mFirst || mAttachInfo.mViewVisibilityChanged) { 1385 mAttachInfo.mViewVisibilityChanged = false; 1386 int resizeMode = mSoftInputMode & 1387 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1388 // If we are in auto resize mode, then we need to determine 1389 // what mode to use now. 1390 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1391 final int N = mAttachInfo.mScrollContainers.size(); 1392 for (int i=0; i<N; i++) { 1393 if (mAttachInfo.mScrollContainers.get(i).isShown()) { 1394 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1395 } 1396 } 1397 if (resizeMode == 0) { 1398 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1399 } 1400 if ((lp.softInputMode & 1401 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1402 lp.softInputMode = (lp.softInputMode & 1403 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1404 resizeMode; 1405 params = lp; 1406 } 1407 } 1408 } 1409 1410 if (params != null) { 1411 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1412 if (!PixelFormat.formatHasAlpha(params.format)) { 1413 params.format = PixelFormat.TRANSLUCENT; 1414 } 1415 } 1416 mAttachInfo.mOverscanRequested = (params.flags 1417 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1418 } 1419 1420 if (mApplyInsetsRequested) { 1421 mApplyInsetsRequested = false; 1422 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1423 dispatchApplyInsets(host); 1424 if (mLayoutRequested) { 1425 // Short-circuit catching a new layout request here, so 1426 // we don't need to go through two layout passes when things 1427 // change due to fitting system windows, which can happen a lot. 1428 windowSizeMayChange |= measureHierarchy(host, lp, 1429 mView.getContext().getResources(), 1430 desiredWindowWidth, desiredWindowHeight); 1431 } 1432 } 1433 1434 if (layoutRequested) { 1435 // Clear this now, so that if anything requests a layout in the 1436 // rest of this function we will catch it and re-run a full 1437 // layout pass. 1438 mLayoutRequested = false; 1439 } 1440 1441 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1442 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1443 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1444 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1445 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1446 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1447 1448 // Determine whether to compute insets. 1449 // If there are no inset listeners remaining then we may still need to compute 1450 // insets in case the old insets were non-empty and must be reset. 1451 final boolean computesInternalInsets = 1452 mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() 1453 || mAttachInfo.mHasNonEmptyGivenInternalInsets; 1454 1455 boolean insetsPending = false; 1456 int relayoutResult = 0; 1457 1458 if (mFirst || windowShouldResize || insetsChanged || 1459 viewVisibilityChanged || params != null) { 1460 1461 if (viewVisibility == View.VISIBLE) { 1462 // If this window is giving internal insets to the window 1463 // manager, and it is being added or changing its visibility, 1464 // then we want to first give the window manager "fake" 1465 // insets to cause it to effectively ignore the content of 1466 // the window during layout. This avoids it briefly causing 1467 // other windows to resize/move based on the raw frame of the 1468 // window, waiting until we can finish laying out this window 1469 // and get back to the window manager with the ultimately 1470 // computed insets. 1471 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1472 } 1473 1474 if (mSurfaceHolder != null) { 1475 mSurfaceHolder.mSurfaceLock.lock(); 1476 mDrawingAllowed = true; 1477 } 1478 1479 boolean hwInitialized = false; 1480 boolean contentInsetsChanged = false; 1481 boolean hadSurface = mSurface.isValid(); 1482 1483 try { 1484 if (DEBUG_LAYOUT) { 1485 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1486 host.getMeasuredHeight() + ", params=" + params); 1487 } 1488 1489 if (mAttachInfo.mHardwareRenderer != null) { 1490 // relayoutWindow may decide to destroy mSurface. As that decision 1491 // happens in WindowManager service, we need to be defensive here 1492 // and stop using the surface in case it gets destroyed. 1493 mAttachInfo.mHardwareRenderer.pauseSurface(mSurface); 1494 } 1495 final int surfaceGenerationId = mSurface.getGenerationId(); 1496 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1497 if (!mDrawDuringWindowsAnimating && 1498 (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1499 mWindowsAnimating = true; 1500 } 1501 1502 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1503 + " overscan=" + mPendingOverscanInsets.toShortString() 1504 + " content=" + mPendingContentInsets.toShortString() 1505 + " visible=" + mPendingVisibleInsets.toShortString() 1506 + " visible=" + mPendingStableInsets.toShortString() 1507 + " surface=" + mSurface); 1508 1509 if (mPendingConfiguration.seq != 0) { 1510 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1511 + mPendingConfiguration); 1512 updateConfiguration(mPendingConfiguration, !mFirst); 1513 mPendingConfiguration.seq = 0; 1514 } 1515 1516 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1517 mAttachInfo.mOverscanInsets); 1518 contentInsetsChanged = !mPendingContentInsets.equals( 1519 mAttachInfo.mContentInsets); 1520 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1521 mAttachInfo.mVisibleInsets); 1522 final boolean stableInsetsChanged = !mPendingStableInsets.equals( 1523 mAttachInfo.mStableInsets); 1524 if (contentInsetsChanged) { 1525 if (mWidth > 0 && mHeight > 0 && lp != null && 1526 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1527 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1528 mSurface != null && mSurface.isValid() && 1529 !mAttachInfo.mTurnOffWindowResizeAnim && 1530 mAttachInfo.mHardwareRenderer != null && 1531 mAttachInfo.mHardwareRenderer.isEnabled() && 1532 lp != null && !PixelFormat.formatHasAlpha(lp.format) 1533 && !mBlockResizeBuffer) { 1534 1535 disposeResizeBuffer(); 1536 1537// TODO: Again.... 1538// if (mResizeBuffer == null) { 1539// mResizeBuffer = mAttachInfo.mHardwareRenderer.createDisplayListLayer( 1540// mWidth, mHeight); 1541// } 1542// mResizeBuffer.prepare(mWidth, mHeight, false); 1543// RenderNode layerRenderNode = mResizeBuffer.startRecording(); 1544// HardwareCanvas layerCanvas = layerRenderNode.start(mWidth, mHeight); 1545// try { 1546// final int restoreCount = layerCanvas.save(); 1547// 1548// int yoff; 1549// final boolean scrolling = mScroller != null 1550// && mScroller.computeScrollOffset(); 1551// if (scrolling) { 1552// yoff = mScroller.getCurrY(); 1553// mScroller.abortAnimation(); 1554// } else { 1555// yoff = mScrollY; 1556// } 1557// 1558// layerCanvas.translate(0, -yoff); 1559// if (mTranslator != null) { 1560// mTranslator.translateCanvas(layerCanvas); 1561// } 1562// 1563// RenderNode renderNode = mView.mRenderNode; 1564// if (renderNode != null && renderNode.isValid()) { 1565// layerCanvas.drawDisplayList(renderNode, null, 1566// RenderNode.FLAG_CLIP_CHILDREN); 1567// } else { 1568// mView.draw(layerCanvas); 1569// } 1570// 1571// drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1572// 1573// mResizeBufferStartTime = SystemClock.uptimeMillis(); 1574// mResizeBufferDuration = mView.getResources().getInteger( 1575// com.android.internal.R.integer.config_mediumAnimTime); 1576// 1577// layerCanvas.restoreToCount(restoreCount); 1578// layerRenderNode.end(layerCanvas); 1579// layerRenderNode.setCaching(true); 1580// layerRenderNode.setLeftTopRightBottom(0, 0, mWidth, mHeight); 1581// mTempRect.set(0, 0, mWidth, mHeight); 1582// } finally { 1583// mResizeBuffer.endRecording(mTempRect); 1584// } 1585// mAttachInfo.mHardwareRenderer.flushLayerUpdates(); 1586 } 1587 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1588 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1589 + mAttachInfo.mContentInsets); 1590 } 1591 if (overscanInsetsChanged) { 1592 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1593 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1594 + mAttachInfo.mOverscanInsets); 1595 // Need to relayout with content insets. 1596 contentInsetsChanged = true; 1597 } 1598 if (stableInsetsChanged) { 1599 mAttachInfo.mStableInsets.set(mPendingStableInsets); 1600 if (DEBUG_LAYOUT) Log.v(TAG, "Decor insets changing to: " 1601 + mAttachInfo.mStableInsets); 1602 // Need to relayout with content insets. 1603 contentInsetsChanged = true; 1604 } 1605 if (contentInsetsChanged || mLastSystemUiVisibility != 1606 mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested 1607 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1608 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1609 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1610 mApplyInsetsRequested = false; 1611 dispatchApplyInsets(host); 1612 } 1613 if (visibleInsetsChanged) { 1614 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1615 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1616 + mAttachInfo.mVisibleInsets); 1617 } 1618 1619 if (!hadSurface) { 1620 if (mSurface.isValid()) { 1621 // If we are creating a new surface, then we need to 1622 // completely redraw it. Also, when we get to the 1623 // point of drawing it we will hold off and schedule 1624 // a new traversal instead. This is so we can tell the 1625 // window manager about all of the windows being displayed 1626 // before actually drawing them, so it can display then 1627 // all at once. 1628 newSurface = true; 1629 mFullRedrawNeeded = true; 1630 mPreviousTransparentRegion.setEmpty(); 1631 1632 if (mAttachInfo.mHardwareRenderer != null) { 1633 try { 1634 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1635 mSurface); 1636 } catch (OutOfResourcesException e) { 1637 handleOutOfResourcesException(e); 1638 return; 1639 } 1640 } 1641 } 1642 } else if (!mSurface.isValid()) { 1643 // If the surface has been removed, then reset the scroll 1644 // positions. 1645 if (mLastScrolledFocus != null) { 1646 mLastScrolledFocus.clear(); 1647 } 1648 mScrollY = mCurScrollY = 0; 1649 if (mScroller != null) { 1650 mScroller.abortAnimation(); 1651 } 1652 disposeResizeBuffer(); 1653 // Our surface is gone 1654 if (mAttachInfo.mHardwareRenderer != null && 1655 mAttachInfo.mHardwareRenderer.isEnabled()) { 1656 mAttachInfo.mHardwareRenderer.destroy(); 1657 } 1658 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1659 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1660 mFullRedrawNeeded = true; 1661 try { 1662 mAttachInfo.mHardwareRenderer.updateSurface(mSurface); 1663 } catch (OutOfResourcesException e) { 1664 handleOutOfResourcesException(e); 1665 return; 1666 } 1667 } 1668 } catch (RemoteException e) { 1669 } 1670 1671 if (DEBUG_ORIENTATION) Log.v( 1672 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1673 1674 mAttachInfo.mWindowLeft = frame.left; 1675 mAttachInfo.mWindowTop = frame.top; 1676 1677 // !!FIXME!! This next section handles the case where we did not get the 1678 // window size we asked for. We should avoid this by getting a maximum size from 1679 // the window session beforehand. 1680 if (mWidth != frame.width() || mHeight != frame.height()) { 1681 mWidth = frame.width(); 1682 mHeight = frame.height(); 1683 } 1684 1685 if (mSurfaceHolder != null) { 1686 // The app owns the surface; tell it about what is going on. 1687 if (mSurface.isValid()) { 1688 // XXX .copyFrom() doesn't work! 1689 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1690 mSurfaceHolder.mSurface = mSurface; 1691 } 1692 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1693 mSurfaceHolder.mSurfaceLock.unlock(); 1694 if (mSurface.isValid()) { 1695 if (!hadSurface) { 1696 mSurfaceHolder.ungetCallbacks(); 1697 1698 mIsCreating = true; 1699 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1700 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1701 if (callbacks != null) { 1702 for (SurfaceHolder.Callback c : callbacks) { 1703 c.surfaceCreated(mSurfaceHolder); 1704 } 1705 } 1706 surfaceChanged = true; 1707 } 1708 if (surfaceChanged) { 1709 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1710 lp.format, mWidth, mHeight); 1711 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1712 if (callbacks != null) { 1713 for (SurfaceHolder.Callback c : callbacks) { 1714 c.surfaceChanged(mSurfaceHolder, lp.format, 1715 mWidth, mHeight); 1716 } 1717 } 1718 } 1719 mIsCreating = false; 1720 } else if (hadSurface) { 1721 mSurfaceHolder.ungetCallbacks(); 1722 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1723 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1724 if (callbacks != null) { 1725 for (SurfaceHolder.Callback c : callbacks) { 1726 c.surfaceDestroyed(mSurfaceHolder); 1727 } 1728 } 1729 mSurfaceHolder.mSurfaceLock.lock(); 1730 try { 1731 mSurfaceHolder.mSurface = new Surface(); 1732 } finally { 1733 mSurfaceHolder.mSurfaceLock.unlock(); 1734 } 1735 } 1736 } 1737 1738 if (mAttachInfo.mHardwareRenderer != null && 1739 mAttachInfo.mHardwareRenderer.isEnabled()) { 1740 if (hwInitialized || 1741 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1742 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1743 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 1744 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight, surfaceInsets); 1745 if (!hwInitialized) { 1746 mAttachInfo.mHardwareRenderer.invalidate(mSurface); 1747 mFullRedrawNeeded = true; 1748 } 1749 } 1750 } 1751 1752 if (!mStopped) { 1753 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1754 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1755 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1756 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1757 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1758 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1759 1760 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1761 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1762 + " mHeight=" + mHeight 1763 + " measuredHeight=" + host.getMeasuredHeight() 1764 + " coveredInsetsChanged=" + contentInsetsChanged); 1765 1766 // Ask host how big it wants to be 1767 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1768 1769 // Implementation of weights from WindowManager.LayoutParams 1770 // We just grow the dimensions as needed and re-measure if 1771 // needs be 1772 int width = host.getMeasuredWidth(); 1773 int height = host.getMeasuredHeight(); 1774 boolean measureAgain = false; 1775 1776 if (lp.horizontalWeight > 0.0f) { 1777 width += (int) ((mWidth - width) * lp.horizontalWeight); 1778 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1779 MeasureSpec.EXACTLY); 1780 measureAgain = true; 1781 } 1782 if (lp.verticalWeight > 0.0f) { 1783 height += (int) ((mHeight - height) * lp.verticalWeight); 1784 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1785 MeasureSpec.EXACTLY); 1786 measureAgain = true; 1787 } 1788 1789 if (measureAgain) { 1790 if (DEBUG_LAYOUT) Log.v(TAG, 1791 "And hey let's measure once more: width=" + width 1792 + " height=" + height); 1793 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1794 } 1795 1796 layoutRequested = true; 1797 } 1798 } 1799 } else { 1800 // Not the first pass and no window/insets/visibility change but the window 1801 // may have moved and we need check that and if so to update the left and right 1802 // in the attach info. We translate only the window frame since on window move 1803 // the window manager tells us only for the new frame but the insets are the 1804 // same and we do not want to translate them more than once. 1805 1806 // TODO: Well, we are checking whether the frame has changed similarly 1807 // to how this is done for the insets. This is however incorrect since 1808 // the insets and the frame are translated. For example, the old frame 1809 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1810 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1811 // true since we are comparing a not translated value to a translated one. 1812 // This scenario is rare but we may want to fix that. 1813 1814 final boolean windowMoved = (mAttachInfo.mWindowLeft != frame.left 1815 || mAttachInfo.mWindowTop != frame.top); 1816 if (windowMoved) { 1817 if (mTranslator != null) { 1818 mTranslator.translateRectInScreenToAppWinFrame(frame); 1819 } 1820 mAttachInfo.mWindowLeft = frame.left; 1821 mAttachInfo.mWindowTop = frame.top; 1822 } 1823 } 1824 1825 final boolean didLayout = layoutRequested && !mStopped; 1826 boolean triggerGlobalLayoutListener = didLayout 1827 || mAttachInfo.mRecomputeGlobalAttributes; 1828 if (didLayout) { 1829 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1830 1831 // By this point all views have been sized and positioned 1832 // We can compute the transparent area 1833 1834 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1835 // start out transparent 1836 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1837 host.getLocationInWindow(mTmpLocation); 1838 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1839 mTmpLocation[0] + host.mRight - host.mLeft, 1840 mTmpLocation[1] + host.mBottom - host.mTop); 1841 1842 host.gatherTransparentRegion(mTransparentRegion); 1843 if (mTranslator != null) { 1844 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1845 } 1846 1847 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1848 mPreviousTransparentRegion.set(mTransparentRegion); 1849 mFullRedrawNeeded = true; 1850 // reconfigure window manager 1851 try { 1852 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1853 } catch (RemoteException e) { 1854 } 1855 } 1856 } 1857 1858 if (DBG) { 1859 System.out.println("======================================"); 1860 System.out.println("performTraversals -- after setFrame"); 1861 host.debug(); 1862 } 1863 } 1864 1865 if (triggerGlobalLayoutListener) { 1866 mAttachInfo.mRecomputeGlobalAttributes = false; 1867 mAttachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1868 } 1869 1870 if (computesInternalInsets) { 1871 // Clear the original insets. 1872 final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets; 1873 insets.reset(); 1874 1875 // Compute new insets in place. 1876 mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1877 mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty(); 1878 1879 // Tell the window manager. 1880 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1881 mLastGivenInsets.set(insets); 1882 1883 // Translate insets to screen coordinates if needed. 1884 final Rect contentInsets; 1885 final Rect visibleInsets; 1886 final Region touchableRegion; 1887 if (mTranslator != null) { 1888 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1889 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1890 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1891 } else { 1892 contentInsets = insets.contentInsets; 1893 visibleInsets = insets.visibleInsets; 1894 touchableRegion = insets.touchableRegion; 1895 } 1896 1897 try { 1898 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1899 contentInsets, visibleInsets, touchableRegion); 1900 } catch (RemoteException e) { 1901 } 1902 } 1903 } 1904 1905 boolean skipDraw = false; 1906 1907 if (mFirst) { 1908 // handle first focus request 1909 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1910 + mView.hasFocus()); 1911 if (mView != null) { 1912 if (!mView.hasFocus()) { 1913 mView.requestFocus(View.FOCUS_FORWARD); 1914 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1915 + mView.findFocus()); 1916 } else { 1917 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1918 + mView.findFocus()); 1919 } 1920 } 1921 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1922 // The first time we relayout the window, if the system is 1923 // doing window animations, we want to hold of on any future 1924 // draws until the animation is done. 1925 mWindowsAnimating = true; 1926 } 1927 } else if (mWindowsAnimating) { 1928 skipDraw = true; 1929 } 1930 1931 mFirst = false; 1932 mWillDrawSoon = false; 1933 mNewSurfaceNeeded = false; 1934 mViewVisibility = viewVisibility; 1935 1936 if (mAttachInfo.mHasWindowFocus && !isInLocalFocusMode()) { 1937 final boolean imTarget = WindowManager.LayoutParams 1938 .mayUseInputMethod(mWindowAttributes.flags); 1939 if (imTarget != mLastWasImTarget) { 1940 mLastWasImTarget = imTarget; 1941 InputMethodManager imm = InputMethodManager.peekInstance(); 1942 if (imm != null && imTarget) { 1943 imm.startGettingWindowFocus(mView); 1944 imm.onWindowFocus(mView, mView.findFocus(), 1945 mWindowAttributes.softInputMode, 1946 !mHasHadWindowFocus, mWindowAttributes.flags); 1947 } 1948 } 1949 } 1950 1951 // Remember if we must report the next draw. 1952 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1953 mReportNextDraw = true; 1954 } 1955 1956 boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || 1957 viewVisibility != View.VISIBLE; 1958 1959 if (!cancelDraw && !newSurface) { 1960 if (!skipDraw || mReportNextDraw) { 1961 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1962 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1963 mPendingTransitions.get(i).startChangingAnimations(); 1964 } 1965 mPendingTransitions.clear(); 1966 } 1967 1968 performDraw(); 1969 } 1970 } else { 1971 if (viewVisibility == View.VISIBLE) { 1972 // Try again 1973 scheduleTraversals(); 1974 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1975 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1976 mPendingTransitions.get(i).endChangingAnimations(); 1977 } 1978 mPendingTransitions.clear(); 1979 } 1980 } 1981 1982 mIsInTraversal = false; 1983 } 1984 1985 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1986 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1987 try { 1988 if (!mWindowSession.outOfMemory(mWindow) && 1989 Process.myUid() != Process.SYSTEM_UID) { 1990 Slog.w(TAG, "No processes killed for memory; killing self"); 1991 Process.killProcess(Process.myPid()); 1992 } 1993 } catch (RemoteException ex) { 1994 } 1995 mLayoutRequested = true; // ask wm for a new surface next time. 1996 } 1997 1998 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1999 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 2000 try { 2001 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 2002 } finally { 2003 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2004 } 2005 } 2006 2007 /** 2008 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 2009 * is currently undergoing a layout pass. 2010 * 2011 * @return whether the view hierarchy is currently undergoing a layout pass 2012 */ 2013 boolean isInLayout() { 2014 return mInLayout; 2015 } 2016 2017 /** 2018 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 2019 * undergoing a layout pass. requestLayout() should not generally be called during layout, 2020 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 2021 * all children in that container hierarchy are measured and laid out at the end of the layout 2022 * pass for that container). If requestLayout() is called anyway, we handle it correctly 2023 * by registering all requesters during a frame as it proceeds. At the end of the frame, 2024 * we check all of those views to see if any still have pending layout requests, which 2025 * indicates that they were not correctly handled by their container hierarchy. If that is 2026 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 2027 * to blank containers, and force a second request/measure/layout pass in this frame. If 2028 * more requestLayout() calls are received during that second layout pass, we post those 2029 * requests to the next frame to avoid possible infinite loops. 2030 * 2031 * <p>The return value from this method indicates whether the request should proceed 2032 * (if it is a request during the first layout pass) or should be skipped and posted to the 2033 * next frame (if it is a request during the second layout pass).</p> 2034 * 2035 * @param view the view that requested the layout. 2036 * 2037 * @return true if request should proceed, false otherwise. 2038 */ 2039 boolean requestLayoutDuringLayout(final View view) { 2040 if (view.mParent == null || view.mAttachInfo == null) { 2041 // Would not normally trigger another layout, so just let it pass through as usual 2042 return true; 2043 } 2044 if (!mLayoutRequesters.contains(view)) { 2045 mLayoutRequesters.add(view); 2046 } 2047 if (!mHandlingLayoutInLayoutRequest) { 2048 // Let the request proceed normally; it will be processed in a second layout pass 2049 // if necessary 2050 return true; 2051 } else { 2052 // Don't let the request proceed during the second layout pass. 2053 // It will post to the next frame instead. 2054 return false; 2055 } 2056 } 2057 2058 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 2059 int desiredWindowHeight) { 2060 mLayoutRequested = false; 2061 mScrollMayChange = true; 2062 mInLayout = true; 2063 2064 final View host = mView; 2065 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 2066 Log.v(TAG, "Laying out " + host + " to (" + 2067 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 2068 } 2069 2070 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2071 try { 2072 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2073 2074 mInLayout = false; 2075 int numViewsRequestingLayout = mLayoutRequesters.size(); 2076 if (numViewsRequestingLayout > 0) { 2077 // requestLayout() was called during layout. 2078 // If no layout-request flags are set on the requesting views, there is no problem. 2079 // If some requests are still pending, then we need to clear those flags and do 2080 // a full request/measure/layout pass to handle this situation. 2081 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2082 false); 2083 if (validLayoutRequesters != null) { 2084 // Set this flag to indicate that any further requests are happening during 2085 // the second pass, which may result in posting those requests to the next 2086 // frame instead 2087 mHandlingLayoutInLayoutRequest = true; 2088 2089 // Process fresh layout requests, then measure and layout 2090 int numValidRequests = validLayoutRequesters.size(); 2091 for (int i = 0; i < numValidRequests; ++i) { 2092 final View view = validLayoutRequesters.get(i); 2093 Log.w("View", "requestLayout() improperly called by " + view + 2094 " during layout: running second layout pass"); 2095 view.requestLayout(); 2096 } 2097 measureHierarchy(host, lp, mView.getContext().getResources(), 2098 desiredWindowWidth, desiredWindowHeight); 2099 mInLayout = true; 2100 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2101 2102 mHandlingLayoutInLayoutRequest = false; 2103 2104 // Check the valid requests again, this time without checking/clearing the 2105 // layout flags, since requests happening during the second pass get noop'd 2106 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2107 if (validLayoutRequesters != null) { 2108 final ArrayList<View> finalRequesters = validLayoutRequesters; 2109 // Post second-pass requests to the next frame 2110 getRunQueue().post(new Runnable() { 2111 @Override 2112 public void run() { 2113 int numValidRequests = finalRequesters.size(); 2114 for (int i = 0; i < numValidRequests; ++i) { 2115 final View view = finalRequesters.get(i); 2116 Log.w("View", "requestLayout() improperly called by " + view + 2117 " during second layout pass: posting in next frame"); 2118 view.requestLayout(); 2119 } 2120 } 2121 }); 2122 } 2123 } 2124 2125 } 2126 } finally { 2127 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2128 } 2129 mInLayout = false; 2130 } 2131 2132 /** 2133 * This method is called during layout when there have been calls to requestLayout() during 2134 * layout. It walks through the list of views that requested layout to determine which ones 2135 * still need it, based on visibility in the hierarchy and whether they have already been 2136 * handled (as is usually the case with ListView children). 2137 * 2138 * @param layoutRequesters The list of views that requested layout during layout 2139 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2140 * If so, the FORCE_LAYOUT flag was not set on requesters. 2141 * @return A list of the actual views that still need to be laid out. 2142 */ 2143 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2144 boolean secondLayoutRequests) { 2145 2146 int numViewsRequestingLayout = layoutRequesters.size(); 2147 ArrayList<View> validLayoutRequesters = null; 2148 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2149 View view = layoutRequesters.get(i); 2150 if (view != null && view.mAttachInfo != null && view.mParent != null && 2151 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2152 View.PFLAG_FORCE_LAYOUT)) { 2153 boolean gone = false; 2154 View parent = view; 2155 // Only trigger new requests for views in a non-GONE hierarchy 2156 while (parent != null) { 2157 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2158 gone = true; 2159 break; 2160 } 2161 if (parent.mParent instanceof View) { 2162 parent = (View) parent.mParent; 2163 } else { 2164 parent = null; 2165 } 2166 } 2167 if (!gone) { 2168 if (validLayoutRequesters == null) { 2169 validLayoutRequesters = new ArrayList<View>(); 2170 } 2171 validLayoutRequesters.add(view); 2172 } 2173 } 2174 } 2175 if (!secondLayoutRequests) { 2176 // If we're checking the layout flags, then we need to clean them up also 2177 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2178 View view = layoutRequesters.get(i); 2179 while (view != null && 2180 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2181 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2182 if (view.mParent instanceof View) { 2183 view = (View) view.mParent; 2184 } else { 2185 view = null; 2186 } 2187 } 2188 } 2189 } 2190 layoutRequesters.clear(); 2191 return validLayoutRequesters; 2192 } 2193 2194 @Override 2195 public void requestTransparentRegion(View child) { 2196 // the test below should not fail unless someone is messing with us 2197 checkThread(); 2198 if (mView == child) { 2199 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2200 // Need to make sure we re-evaluate the window attributes next 2201 // time around, to ensure the window has the correct format. 2202 mWindowAttributesChanged = true; 2203 mWindowAttributesChangesFlag = 0; 2204 requestLayout(); 2205 } 2206 } 2207 2208 /** 2209 * Figures out the measure spec for the root view in a window based on it's 2210 * layout params. 2211 * 2212 * @param windowSize 2213 * The available width or height of the window 2214 * 2215 * @param rootDimension 2216 * The layout params for one dimension (width or height) of the 2217 * window. 2218 * 2219 * @return The measure spec to use to measure the root view. 2220 */ 2221 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2222 int measureSpec; 2223 switch (rootDimension) { 2224 2225 case ViewGroup.LayoutParams.MATCH_PARENT: 2226 // Window can't resize. Force root view to be windowSize. 2227 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2228 break; 2229 case ViewGroup.LayoutParams.WRAP_CONTENT: 2230 // Window can resize. Set max size for root view. 2231 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2232 break; 2233 default: 2234 // Window wants to be an exact size. Force root view to be that size. 2235 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2236 break; 2237 } 2238 return measureSpec; 2239 } 2240 2241 int mHardwareXOffset; 2242 int mHardwareYOffset; 2243 int mResizeAlpha; 2244 final Paint mResizePaint = new Paint(); 2245 2246 @Override 2247 public void onHardwarePreDraw(HardwareCanvas canvas) { 2248 canvas.translate(-mHardwareXOffset, -mHardwareYOffset); 2249 } 2250 2251 @Override 2252 public void onHardwarePostDraw(HardwareCanvas canvas) { 2253 if (mResizeBuffer != null) { 2254 mResizePaint.setAlpha(mResizeAlpha); 2255 canvas.drawHardwareLayer(mResizeBuffer, mHardwareXOffset, mHardwareYOffset, 2256 mResizePaint); 2257 } 2258 } 2259 2260 /** 2261 * @hide 2262 */ 2263 void outputDisplayList(View view) { 2264 RenderNode renderNode = view.getDisplayList(); 2265 if (renderNode != null) { 2266 renderNode.output(); 2267 } 2268 } 2269 2270 /** 2271 * @see #PROPERTY_PROFILE_RENDERING 2272 */ 2273 private void profileRendering(boolean enabled) { 2274 if (mProfileRendering) { 2275 mRenderProfilingEnabled = enabled; 2276 2277 if (mRenderProfiler != null) { 2278 mChoreographer.removeFrameCallback(mRenderProfiler); 2279 } 2280 if (mRenderProfilingEnabled) { 2281 if (mRenderProfiler == null) { 2282 mRenderProfiler = new Choreographer.FrameCallback() { 2283 @Override 2284 public void doFrame(long frameTimeNanos) { 2285 mDirty.set(0, 0, mWidth, mHeight); 2286 scheduleTraversals(); 2287 if (mRenderProfilingEnabled) { 2288 mChoreographer.postFrameCallback(mRenderProfiler); 2289 } 2290 } 2291 }; 2292 } 2293 mChoreographer.postFrameCallback(mRenderProfiler); 2294 } else { 2295 mRenderProfiler = null; 2296 } 2297 } 2298 } 2299 2300 /** 2301 * Called from draw() when DEBUG_FPS is enabled 2302 */ 2303 private void trackFPS() { 2304 // Tracks frames per second drawn. First value in a series of draws may be bogus 2305 // because it down not account for the intervening idle time 2306 long nowTime = System.currentTimeMillis(); 2307 if (mFpsStartTime < 0) { 2308 mFpsStartTime = mFpsPrevTime = nowTime; 2309 mFpsNumFrames = 0; 2310 } else { 2311 ++mFpsNumFrames; 2312 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2313 long frameTime = nowTime - mFpsPrevTime; 2314 long totalTime = nowTime - mFpsStartTime; 2315 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2316 mFpsPrevTime = nowTime; 2317 if (totalTime > 1000) { 2318 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2319 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2320 mFpsStartTime = nowTime; 2321 mFpsNumFrames = 0; 2322 } 2323 } 2324 } 2325 2326 private void performDraw() { 2327 if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) { 2328 return; 2329 } 2330 2331 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2332 mFullRedrawNeeded = false; 2333 2334 mIsDrawing = true; 2335 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2336 try { 2337 draw(fullRedrawNeeded); 2338 } finally { 2339 mIsDrawing = false; 2340 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2341 } 2342 2343 // For whatever reason we didn't create a HardwareRenderer, end any 2344 // hardware animations that are now dangling 2345 if (mAttachInfo.mPendingAnimatingRenderNodes != null) { 2346 final int count = mAttachInfo.mPendingAnimatingRenderNodes.size(); 2347 for (int i = 0; i < count; i++) { 2348 mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators(); 2349 } 2350 mAttachInfo.mPendingAnimatingRenderNodes.clear(); 2351 } 2352 2353 if (mReportNextDraw) { 2354 mReportNextDraw = false; 2355 if (mAttachInfo.mHardwareRenderer != null) { 2356 mAttachInfo.mHardwareRenderer.fence(); 2357 } 2358 2359 if (LOCAL_LOGV) { 2360 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2361 } 2362 if (mSurfaceHolder != null && mSurface.isValid()) { 2363 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2364 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2365 if (callbacks != null) { 2366 for (SurfaceHolder.Callback c : callbacks) { 2367 if (c instanceof SurfaceHolder.Callback2) { 2368 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2369 mSurfaceHolder); 2370 } 2371 } 2372 } 2373 } 2374 try { 2375 mWindowSession.finishDrawing(mWindow); 2376 } catch (RemoteException e) { 2377 } 2378 } 2379 } 2380 2381 private void draw(boolean fullRedrawNeeded) { 2382 Surface surface = mSurface; 2383 if (!surface.isValid()) { 2384 return; 2385 } 2386 2387 if (DEBUG_FPS) { 2388 trackFPS(); 2389 } 2390 2391 if (!sFirstDrawComplete) { 2392 synchronized (sFirstDrawHandlers) { 2393 sFirstDrawComplete = true; 2394 final int count = sFirstDrawHandlers.size(); 2395 for (int i = 0; i< count; i++) { 2396 mHandler.post(sFirstDrawHandlers.get(i)); 2397 } 2398 } 2399 } 2400 2401 scrollToRectOrFocus(null, false); 2402 2403 if (mAttachInfo.mViewScrollChanged) { 2404 mAttachInfo.mViewScrollChanged = false; 2405 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 2406 } 2407 2408 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2409 final int curScrollY; 2410 if (animating) { 2411 curScrollY = mScroller.getCurrY(); 2412 } else { 2413 curScrollY = mScrollY; 2414 } 2415 if (mCurScrollY != curScrollY) { 2416 mCurScrollY = curScrollY; 2417 fullRedrawNeeded = true; 2418 } 2419 2420 final float appScale = mAttachInfo.mApplicationScale; 2421 final boolean scalingRequired = mAttachInfo.mScalingRequired; 2422 2423 int resizeAlpha = 0; 2424 if (mResizeBuffer != null) { 2425 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2426 if (deltaTime < mResizeBufferDuration) { 2427 float amt = deltaTime/(float) mResizeBufferDuration; 2428 amt = mResizeInterpolator.getInterpolation(amt); 2429 animating = true; 2430 resizeAlpha = 255 - (int)(amt*255); 2431 } else { 2432 disposeResizeBuffer(); 2433 } 2434 } 2435 2436 final Rect dirty = mDirty; 2437 if (mSurfaceHolder != null) { 2438 // The app owns the surface, we won't draw. 2439 dirty.setEmpty(); 2440 if (animating) { 2441 if (mScroller != null) { 2442 mScroller.abortAnimation(); 2443 } 2444 disposeResizeBuffer(); 2445 } 2446 return; 2447 } 2448 2449 if (fullRedrawNeeded) { 2450 mAttachInfo.mIgnoreDirtyState = true; 2451 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2452 } 2453 2454 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2455 Log.v(TAG, "Draw " + mView + "/" 2456 + mWindowAttributes.getTitle() 2457 + ": dirty={" + dirty.left + "," + dirty.top 2458 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2459 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2460 appScale + ", width=" + mWidth + ", height=" + mHeight); 2461 } 2462 2463 mAttachInfo.mTreeObserver.dispatchOnDraw(); 2464 2465 int xOffset = 0; 2466 int yOffset = curScrollY; 2467 final WindowManager.LayoutParams params = mWindowAttributes; 2468 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 2469 if (surfaceInsets != null) { 2470 xOffset -= surfaceInsets.left; 2471 yOffset -= surfaceInsets.top; 2472 2473 // Offset dirty rect for surface insets. 2474 dirty.offset(surfaceInsets.left, surfaceInsets.right); 2475 } 2476 2477 if (!dirty.isEmpty() || mIsAnimating) { 2478 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 2479 // Draw with hardware renderer. 2480 mIsAnimating = false; 2481 boolean invalidateRoot = false; 2482 if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) { 2483 mHardwareYOffset = yOffset; 2484 mHardwareXOffset = xOffset; 2485 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2486 } 2487 mResizeAlpha = resizeAlpha; 2488 2489 dirty.setEmpty(); 2490 2491 mBlockResizeBuffer = false; 2492 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this); 2493 } else { 2494 // If we get here with a disabled & requested hardware renderer, something went 2495 // wrong (an invalidate posted right before we destroyed the hardware surface 2496 // for instance) so we should just bail out. Locking the surface with software 2497 // rendering at this point would lock it forever and prevent hardware renderer 2498 // from doing its job when it comes back. 2499 // Before we request a new frame we must however attempt to reinitiliaze the 2500 // hardware renderer if it's in requested state. This would happen after an 2501 // eglTerminate() for instance. 2502 if (mAttachInfo.mHardwareRenderer != null && 2503 !mAttachInfo.mHardwareRenderer.isEnabled() && 2504 mAttachInfo.mHardwareRenderer.isRequested()) { 2505 2506 try { 2507 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2508 mWidth, mHeight, mSurface, surfaceInsets); 2509 } catch (OutOfResourcesException e) { 2510 handleOutOfResourcesException(e); 2511 return; 2512 } 2513 2514 mFullRedrawNeeded = true; 2515 scheduleTraversals(); 2516 return; 2517 } 2518 2519 if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) { 2520 return; 2521 } 2522 } 2523 } 2524 2525 if (animating) { 2526 mFullRedrawNeeded = true; 2527 scheduleTraversals(); 2528 } 2529 } 2530 2531 /** 2532 * @return true if drawing was successful, false if an error occurred 2533 */ 2534 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff, 2535 boolean scalingRequired, Rect dirty) { 2536 2537 // Draw with software renderer. 2538 final Canvas canvas; 2539 try { 2540 final int left = dirty.left; 2541 final int top = dirty.top; 2542 final int right = dirty.right; 2543 final int bottom = dirty.bottom; 2544 2545 canvas = mSurface.lockCanvas(dirty); 2546 2547 // The dirty rectangle can be modified by Surface.lockCanvas() 2548 //noinspection ConstantConditions 2549 if (left != dirty.left || top != dirty.top || right != dirty.right 2550 || bottom != dirty.bottom) { 2551 attachInfo.mIgnoreDirtyState = true; 2552 } 2553 2554 // TODO: Do this in native 2555 canvas.setDensity(mDensity); 2556 } catch (Surface.OutOfResourcesException e) { 2557 handleOutOfResourcesException(e); 2558 return false; 2559 } catch (IllegalArgumentException e) { 2560 Log.e(TAG, "Could not lock surface", e); 2561 // Don't assume this is due to out of memory, it could be 2562 // something else, and if it is something else then we could 2563 // kill stuff (or ourself) for no reason. 2564 mLayoutRequested = true; // ask wm for a new surface next time. 2565 return false; 2566 } 2567 2568 try { 2569 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2570 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2571 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2572 //canvas.drawARGB(255, 255, 0, 0); 2573 } 2574 2575 // If this bitmap's format includes an alpha channel, we 2576 // need to clear it before drawing so that the child will 2577 // properly re-composite its drawing on a transparent 2578 // background. This automatically respects the clip/dirty region 2579 // or 2580 // If we are applying an offset, we need to clear the area 2581 // where the offset doesn't appear to avoid having garbage 2582 // left in the blank areas. 2583 if (!canvas.isOpaque() || yoff != 0 || xoff != 0) { 2584 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2585 } 2586 2587 dirty.setEmpty(); 2588 mIsAnimating = false; 2589 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2590 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2591 2592 if (DEBUG_DRAW) { 2593 Context cxt = mView.getContext(); 2594 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2595 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2596 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2597 } 2598 try { 2599 canvas.translate(-xoff, -yoff); 2600 if (mTranslator != null) { 2601 mTranslator.translateCanvas(canvas); 2602 } 2603 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2604 attachInfo.mSetIgnoreDirtyState = false; 2605 2606 mView.draw(canvas); 2607 } finally { 2608 if (!attachInfo.mSetIgnoreDirtyState) { 2609 // Only clear the flag if it was not set during the mView.draw() call 2610 attachInfo.mIgnoreDirtyState = false; 2611 } 2612 } 2613 } finally { 2614 try { 2615 surface.unlockCanvasAndPost(canvas); 2616 } catch (IllegalArgumentException e) { 2617 Log.e(TAG, "Could not unlock surface", e); 2618 mLayoutRequested = true; // ask wm for a new surface next time. 2619 //noinspection ReturnInsideFinallyBlock 2620 return false; 2621 } 2622 2623 if (LOCAL_LOGV) { 2624 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2625 } 2626 } 2627 return true; 2628 } 2629 2630 Drawable getAccessibilityFocusedDrawable() { 2631 // Lazily load the accessibility focus drawable. 2632 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2633 final TypedValue value = new TypedValue(); 2634 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2635 R.attr.accessibilityFocusedDrawable, value, true); 2636 if (resolved) { 2637 mAttachInfo.mAccessibilityFocusDrawable = 2638 mView.mContext.getDrawable(value.resourceId); 2639 } 2640 } 2641 return mAttachInfo.mAccessibilityFocusDrawable; 2642 } 2643 2644 /** 2645 * @hide 2646 */ 2647 public void setDrawDuringWindowsAnimating(boolean value) { 2648 mDrawDuringWindowsAnimating = value; 2649 if (value) { 2650 handleDispatchDoneAnimating(); 2651 } 2652 } 2653 2654 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2655 final Rect ci = mAttachInfo.mContentInsets; 2656 final Rect vi = mAttachInfo.mVisibleInsets; 2657 int scrollY = 0; 2658 boolean handled = false; 2659 2660 if (vi.left > ci.left || vi.top > ci.top 2661 || vi.right > ci.right || vi.bottom > ci.bottom) { 2662 // We'll assume that we aren't going to change the scroll 2663 // offset, since we want to avoid that unless it is actually 2664 // going to make the focus visible... otherwise we scroll 2665 // all over the place. 2666 scrollY = mScrollY; 2667 // We can be called for two different situations: during a draw, 2668 // to update the scroll position if the focus has changed (in which 2669 // case 'rectangle' is null), or in response to a 2670 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2671 // is non-null and we just want to scroll to whatever that 2672 // rectangle is). 2673 final View focus = mView.findFocus(); 2674 if (focus == null) { 2675 return false; 2676 } 2677 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2678 if (focus != lastScrolledFocus) { 2679 // If the focus has changed, then ignore any requests to scroll 2680 // to a rectangle; first we want to make sure the entire focus 2681 // view is visible. 2682 rectangle = null; 2683 } 2684 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2685 + " rectangle=" + rectangle + " ci=" + ci 2686 + " vi=" + vi); 2687 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2688 // Optimization: if the focus hasn't changed since last 2689 // time, and no layout has happened, then just leave things 2690 // as they are. 2691 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2692 + mScrollY + " vi=" + vi.toShortString()); 2693 } else { 2694 // We need to determine if the currently focused view is 2695 // within the visible part of the window and, if not, apply 2696 // a pan so it can be seen. 2697 mLastScrolledFocus = new WeakReference<View>(focus); 2698 mScrollMayChange = false; 2699 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2700 // Try to find the rectangle from the focus view. 2701 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2702 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2703 + mView.getWidth() + " h=" + mView.getHeight() 2704 + " ci=" + ci.toShortString() 2705 + " vi=" + vi.toShortString()); 2706 if (rectangle == null) { 2707 focus.getFocusedRect(mTempRect); 2708 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2709 + ": focusRect=" + mTempRect.toShortString()); 2710 if (mView instanceof ViewGroup) { 2711 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2712 focus, mTempRect); 2713 } 2714 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2715 "Focus in window: focusRect=" 2716 + mTempRect.toShortString() 2717 + " visRect=" + mVisRect.toShortString()); 2718 } else { 2719 mTempRect.set(rectangle); 2720 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2721 "Request scroll to rect: " 2722 + mTempRect.toShortString() 2723 + " visRect=" + mVisRect.toShortString()); 2724 } 2725 if (mTempRect.intersect(mVisRect)) { 2726 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2727 "Focus window visible rect: " 2728 + mTempRect.toShortString()); 2729 if (mTempRect.height() > 2730 (mView.getHeight()-vi.top-vi.bottom)) { 2731 // If the focus simply is not going to fit, then 2732 // best is probably just to leave things as-is. 2733 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2734 "Too tall; leaving scrollY=" + scrollY); 2735 } else if ((mTempRect.top-scrollY) < vi.top) { 2736 scrollY -= vi.top - (mTempRect.top-scrollY); 2737 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2738 "Top covered; scrollY=" + scrollY); 2739 } else if ((mTempRect.bottom-scrollY) 2740 > (mView.getHeight()-vi.bottom)) { 2741 scrollY += (mTempRect.bottom-scrollY) 2742 - (mView.getHeight()-vi.bottom); 2743 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2744 "Bottom covered; scrollY=" + scrollY); 2745 } 2746 handled = true; 2747 } 2748 } 2749 } 2750 } 2751 2752 if (scrollY != mScrollY) { 2753 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2754 + mScrollY + " , new=" + scrollY); 2755 if (!immediate && mResizeBuffer == null) { 2756 if (mScroller == null) { 2757 mScroller = new Scroller(mView.getContext()); 2758 } 2759 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2760 } else if (mScroller != null) { 2761 mScroller.abortAnimation(); 2762 } 2763 mScrollY = scrollY; 2764 } 2765 2766 return handled; 2767 } 2768 2769 /** 2770 * @hide 2771 */ 2772 public View getAccessibilityFocusedHost() { 2773 return mAccessibilityFocusedHost; 2774 } 2775 2776 /** 2777 * @hide 2778 */ 2779 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2780 return mAccessibilityFocusedVirtualView; 2781 } 2782 2783 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2784 // If we have a virtual view with accessibility focus we need 2785 // to clear the focus and invalidate the virtual view bounds. 2786 if (mAccessibilityFocusedVirtualView != null) { 2787 2788 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2789 View focusHost = mAccessibilityFocusedHost; 2790 2791 // Wipe the state of the current accessibility focus since 2792 // the call into the provider to clear accessibility focus 2793 // will fire an accessibility event which will end up calling 2794 // this method and we want to have clean state when this 2795 // invocation happens. 2796 mAccessibilityFocusedHost = null; 2797 mAccessibilityFocusedVirtualView = null; 2798 2799 // Clear accessibility focus on the host after clearing state since 2800 // this method may be reentrant. 2801 focusHost.clearAccessibilityFocusNoCallbacks(); 2802 2803 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2804 if (provider != null) { 2805 // Invalidate the area of the cleared accessibility focus. 2806 focusNode.getBoundsInParent(mTempRect); 2807 focusHost.invalidate(mTempRect); 2808 // Clear accessibility focus in the virtual node. 2809 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2810 focusNode.getSourceNodeId()); 2811 provider.performAction(virtualNodeId, 2812 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2813 } 2814 focusNode.recycle(); 2815 } 2816 if (mAccessibilityFocusedHost != null) { 2817 // Clear accessibility focus in the view. 2818 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2819 } 2820 2821 // Set the new focus host and node. 2822 mAccessibilityFocusedHost = view; 2823 mAccessibilityFocusedVirtualView = node; 2824 2825 if (mAttachInfo.mHardwareRenderer != null) { 2826 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2827 } 2828 } 2829 2830 @Override 2831 public void requestChildFocus(View child, View focused) { 2832 if (DEBUG_INPUT_RESIZE) { 2833 Log.v(TAG, "Request child focus: focus now " + focused); 2834 } 2835 checkThread(); 2836 scheduleTraversals(); 2837 } 2838 2839 @Override 2840 public void clearChildFocus(View child) { 2841 if (DEBUG_INPUT_RESIZE) { 2842 Log.v(TAG, "Clearing child focus"); 2843 } 2844 checkThread(); 2845 scheduleTraversals(); 2846 } 2847 2848 @Override 2849 public ViewParent getParentForAccessibility() { 2850 return null; 2851 } 2852 2853 @Override 2854 public void focusableViewAvailable(View v) { 2855 checkThread(); 2856 if (mView != null) { 2857 if (!mView.hasFocus()) { 2858 v.requestFocus(); 2859 } else { 2860 // the one case where will transfer focus away from the current one 2861 // is if the current view is a view group that prefers to give focus 2862 // to its children first AND the view is a descendant of it. 2863 View focused = mView.findFocus(); 2864 if (focused instanceof ViewGroup) { 2865 ViewGroup group = (ViewGroup) focused; 2866 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2867 && isViewDescendantOf(v, focused)) { 2868 v.requestFocus(); 2869 } 2870 } 2871 } 2872 } 2873 } 2874 2875 @Override 2876 public void recomputeViewAttributes(View child) { 2877 checkThread(); 2878 if (mView == child) { 2879 mAttachInfo.mRecomputeGlobalAttributes = true; 2880 if (!mWillDrawSoon) { 2881 scheduleTraversals(); 2882 } 2883 } 2884 } 2885 2886 void dispatchDetachedFromWindow() { 2887 if (mView != null && mView.mAttachInfo != null) { 2888 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 2889 mView.dispatchDetachedFromWindow(); 2890 } 2891 2892 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2893 mAccessibilityManager.removeAccessibilityStateChangeListener( 2894 mAccessibilityInteractionConnectionManager); 2895 mAccessibilityManager.removeHighTextContrastStateChangeListener( 2896 mHighContrastTextManager); 2897 removeSendWindowContentChangedCallback(); 2898 2899 destroyHardwareRenderer(); 2900 2901 setAccessibilityFocus(null, null); 2902 2903 mView.assignParent(null); 2904 mView = null; 2905 mAttachInfo.mRootView = null; 2906 2907 mSurface.release(); 2908 2909 if (mInputQueueCallback != null && mInputQueue != null) { 2910 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2911 mInputQueue.dispose(); 2912 mInputQueueCallback = null; 2913 mInputQueue = null; 2914 } 2915 if (mInputEventReceiver != null) { 2916 mInputEventReceiver.dispose(); 2917 mInputEventReceiver = null; 2918 } 2919 try { 2920 mWindowSession.remove(mWindow); 2921 } catch (RemoteException e) { 2922 } 2923 2924 // Dispose the input channel after removing the window so the Window Manager 2925 // doesn't interpret the input channel being closed as an abnormal termination. 2926 if (mInputChannel != null) { 2927 mInputChannel.dispose(); 2928 mInputChannel = null; 2929 } 2930 2931 mDisplayManager.unregisterDisplayListener(mDisplayListener); 2932 2933 unscheduleTraversals(); 2934 } 2935 2936 void updateConfiguration(Configuration config, boolean force) { 2937 if (DEBUG_CONFIGURATION) Log.v(TAG, 2938 "Applying new config to window " 2939 + mWindowAttributes.getTitle() 2940 + ": " + config); 2941 2942 CompatibilityInfo ci = mDisplayAdjustments.getCompatibilityInfo(); 2943 if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) { 2944 config = new Configuration(config); 2945 ci.applyToConfiguration(mNoncompatDensity, config); 2946 } 2947 2948 synchronized (sConfigCallbacks) { 2949 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2950 sConfigCallbacks.get(i).onConfigurationChanged(config); 2951 } 2952 } 2953 if (mView != null) { 2954 // At this point the resources have been updated to 2955 // have the most recent config, whatever that is. Use 2956 // the one in them which may be newer. 2957 config = mView.getResources().getConfiguration(); 2958 if (force || mLastConfiguration.diff(config) != 0) { 2959 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2960 final int currentLayoutDirection = config.getLayoutDirection(); 2961 mLastConfiguration.setTo(config); 2962 if (lastLayoutDirection != currentLayoutDirection && 2963 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2964 mView.setLayoutDirection(currentLayoutDirection); 2965 } 2966 mView.dispatchConfigurationChanged(config); 2967 } 2968 } 2969 } 2970 2971 /** 2972 * Return true if child is an ancestor of parent, (or equal to the parent). 2973 */ 2974 public static boolean isViewDescendantOf(View child, View parent) { 2975 if (child == parent) { 2976 return true; 2977 } 2978 2979 final ViewParent theParent = child.getParent(); 2980 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2981 } 2982 2983 private static void forceLayout(View view) { 2984 view.forceLayout(); 2985 if (view instanceof ViewGroup) { 2986 ViewGroup group = (ViewGroup) view; 2987 final int count = group.getChildCount(); 2988 for (int i = 0; i < count; i++) { 2989 forceLayout(group.getChildAt(i)); 2990 } 2991 } 2992 } 2993 2994 private final static int MSG_INVALIDATE = 1; 2995 private final static int MSG_INVALIDATE_RECT = 2; 2996 private final static int MSG_DIE = 3; 2997 private final static int MSG_RESIZED = 4; 2998 private final static int MSG_RESIZED_REPORT = 5; 2999 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 3000 private final static int MSG_DISPATCH_INPUT_EVENT = 7; 3001 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 3002 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 3003 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 3004 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 3005 private final static int MSG_CHECK_FOCUS = 13; 3006 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 3007 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 3008 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 3009 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 3010 private final static int MSG_UPDATE_CONFIGURATION = 18; 3011 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 3012 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 3013 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 3014 private final static int MSG_INVALIDATE_WORLD = 23; 3015 private final static int MSG_WINDOW_MOVED = 24; 3016 private final static int MSG_SYNTHESIZE_INPUT_EVENT = 25; 3017 private final static int MSG_DISPATCH_WINDOW_SHOWN = 26; 3018 3019 final class ViewRootHandler extends Handler { 3020 @Override 3021 public String getMessageName(Message message) { 3022 switch (message.what) { 3023 case MSG_INVALIDATE: 3024 return "MSG_INVALIDATE"; 3025 case MSG_INVALIDATE_RECT: 3026 return "MSG_INVALIDATE_RECT"; 3027 case MSG_DIE: 3028 return "MSG_DIE"; 3029 case MSG_RESIZED: 3030 return "MSG_RESIZED"; 3031 case MSG_RESIZED_REPORT: 3032 return "MSG_RESIZED_REPORT"; 3033 case MSG_WINDOW_FOCUS_CHANGED: 3034 return "MSG_WINDOW_FOCUS_CHANGED"; 3035 case MSG_DISPATCH_INPUT_EVENT: 3036 return "MSG_DISPATCH_INPUT_EVENT"; 3037 case MSG_DISPATCH_APP_VISIBILITY: 3038 return "MSG_DISPATCH_APP_VISIBILITY"; 3039 case MSG_DISPATCH_GET_NEW_SURFACE: 3040 return "MSG_DISPATCH_GET_NEW_SURFACE"; 3041 case MSG_DISPATCH_KEY_FROM_IME: 3042 return "MSG_DISPATCH_KEY_FROM_IME"; 3043 case MSG_FINISH_INPUT_CONNECTION: 3044 return "MSG_FINISH_INPUT_CONNECTION"; 3045 case MSG_CHECK_FOCUS: 3046 return "MSG_CHECK_FOCUS"; 3047 case MSG_CLOSE_SYSTEM_DIALOGS: 3048 return "MSG_CLOSE_SYSTEM_DIALOGS"; 3049 case MSG_DISPATCH_DRAG_EVENT: 3050 return "MSG_DISPATCH_DRAG_EVENT"; 3051 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 3052 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 3053 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 3054 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 3055 case MSG_UPDATE_CONFIGURATION: 3056 return "MSG_UPDATE_CONFIGURATION"; 3057 case MSG_PROCESS_INPUT_EVENTS: 3058 return "MSG_PROCESS_INPUT_EVENTS"; 3059 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3060 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3061 case MSG_DISPATCH_DONE_ANIMATING: 3062 return "MSG_DISPATCH_DONE_ANIMATING"; 3063 case MSG_WINDOW_MOVED: 3064 return "MSG_WINDOW_MOVED"; 3065 case MSG_SYNTHESIZE_INPUT_EVENT: 3066 return "MSG_SYNTHESIZE_INPUT_EVENT"; 3067 case MSG_DISPATCH_WINDOW_SHOWN: 3068 return "MSG_DISPATCH_WINDOW_SHOWN"; 3069 } 3070 return super.getMessageName(message); 3071 } 3072 3073 @Override 3074 public void handleMessage(Message msg) { 3075 switch (msg.what) { 3076 case MSG_INVALIDATE: 3077 ((View) msg.obj).invalidate(); 3078 break; 3079 case MSG_INVALIDATE_RECT: 3080 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3081 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3082 info.recycle(); 3083 break; 3084 case MSG_PROCESS_INPUT_EVENTS: 3085 mProcessInputEventsScheduled = false; 3086 doProcessInputEvents(); 3087 break; 3088 case MSG_DISPATCH_APP_VISIBILITY: 3089 handleAppVisibility(msg.arg1 != 0); 3090 break; 3091 case MSG_DISPATCH_GET_NEW_SURFACE: 3092 handleGetNewSurface(); 3093 break; 3094 case MSG_RESIZED: { 3095 // Recycled in the fall through... 3096 SomeArgs args = (SomeArgs) msg.obj; 3097 if (mWinFrame.equals(args.arg1) 3098 && mPendingOverscanInsets.equals(args.arg5) 3099 && mPendingContentInsets.equals(args.arg2) 3100 && mPendingStableInsets.equals(args.arg6) 3101 && mPendingVisibleInsets.equals(args.arg3) 3102 && args.arg4 == null) { 3103 break; 3104 } 3105 } // fall through... 3106 case MSG_RESIZED_REPORT: 3107 if (mAdded) { 3108 SomeArgs args = (SomeArgs) msg.obj; 3109 3110 Configuration config = (Configuration) args.arg4; 3111 if (config != null) { 3112 updateConfiguration(config, false); 3113 } 3114 3115 mWinFrame.set((Rect) args.arg1); 3116 mPendingOverscanInsets.set((Rect) args.arg5); 3117 mPendingContentInsets.set((Rect) args.arg2); 3118 mPendingStableInsets.set((Rect) args.arg6); 3119 mPendingVisibleInsets.set((Rect) args.arg3); 3120 3121 args.recycle(); 3122 3123 if (msg.what == MSG_RESIZED_REPORT) { 3124 mReportNextDraw = true; 3125 } 3126 3127 if (mView != null) { 3128 forceLayout(mView); 3129 } 3130 3131 requestLayout(); 3132 } 3133 break; 3134 case MSG_WINDOW_MOVED: 3135 if (mAdded) { 3136 final int w = mWinFrame.width(); 3137 final int h = mWinFrame.height(); 3138 final int l = msg.arg1; 3139 final int t = msg.arg2; 3140 mWinFrame.left = l; 3141 mWinFrame.right = l + w; 3142 mWinFrame.top = t; 3143 mWinFrame.bottom = t + h; 3144 3145 if (mView != null) { 3146 forceLayout(mView); 3147 } 3148 requestLayout(); 3149 } 3150 break; 3151 case MSG_WINDOW_FOCUS_CHANGED: { 3152 if (mAdded) { 3153 boolean hasWindowFocus = msg.arg1 != 0; 3154 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3155 3156 profileRendering(hasWindowFocus); 3157 3158 if (hasWindowFocus) { 3159 boolean inTouchMode = msg.arg2 != 0; 3160 ensureTouchModeLocally(inTouchMode); 3161 3162 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3163 mFullRedrawNeeded = true; 3164 try { 3165 final WindowManager.LayoutParams lp = mWindowAttributes; 3166 final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null; 3167 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3168 mWidth, mHeight, mSurface, surfaceInsets); 3169 } catch (OutOfResourcesException e) { 3170 Log.e(TAG, "OutOfResourcesException locking surface", e); 3171 try { 3172 if (!mWindowSession.outOfMemory(mWindow)) { 3173 Slog.w(TAG, "No processes killed for memory; killing self"); 3174 Process.killProcess(Process.myPid()); 3175 } 3176 } catch (RemoteException ex) { 3177 } 3178 // Retry in a bit. 3179 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3180 return; 3181 } 3182 } 3183 } 3184 3185 mLastWasImTarget = WindowManager.LayoutParams 3186 .mayUseInputMethod(mWindowAttributes.flags); 3187 3188 InputMethodManager imm = InputMethodManager.peekInstance(); 3189 if (mView != null) { 3190 if (hasWindowFocus && imm != null && mLastWasImTarget && 3191 !isInLocalFocusMode()) { 3192 imm.startGettingWindowFocus(mView); 3193 } 3194 mAttachInfo.mKeyDispatchState.reset(); 3195 mView.dispatchWindowFocusChanged(hasWindowFocus); 3196 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3197 } 3198 3199 // Note: must be done after the focus change callbacks, 3200 // so all of the view state is set up correctly. 3201 if (hasWindowFocus) { 3202 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3203 imm.onWindowFocus(mView, mView.findFocus(), 3204 mWindowAttributes.softInputMode, 3205 !mHasHadWindowFocus, mWindowAttributes.flags); 3206 } 3207 // Clear the forward bit. We can just do this directly, since 3208 // the window manager doesn't care about it. 3209 mWindowAttributes.softInputMode &= 3210 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3211 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3212 .softInputMode &= 3213 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3214 mHasHadWindowFocus = true; 3215 } 3216 3217 if (mView != null && mAccessibilityManager.isEnabled()) { 3218 if (hasWindowFocus) { 3219 mView.sendAccessibilityEvent( 3220 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3221 } 3222 } 3223 } 3224 } break; 3225 case MSG_DIE: 3226 doDie(); 3227 break; 3228 case MSG_DISPATCH_INPUT_EVENT: { 3229 SomeArgs args = (SomeArgs)msg.obj; 3230 InputEvent event = (InputEvent)args.arg1; 3231 InputEventReceiver receiver = (InputEventReceiver)args.arg2; 3232 enqueueInputEvent(event, receiver, 0, true); 3233 args.recycle(); 3234 } break; 3235 case MSG_SYNTHESIZE_INPUT_EVENT: { 3236 InputEvent event = (InputEvent)msg.obj; 3237 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true); 3238 } break; 3239 case MSG_DISPATCH_KEY_FROM_IME: { 3240 if (LOCAL_LOGV) Log.v( 3241 TAG, "Dispatching key " 3242 + msg.obj + " from IME to " + mView); 3243 KeyEvent event = (KeyEvent)msg.obj; 3244 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3245 // The IME is trying to say this event is from the 3246 // system! Bad bad bad! 3247 //noinspection UnusedAssignment 3248 event = KeyEvent.changeFlags(event, event.getFlags() & 3249 ~KeyEvent.FLAG_FROM_SYSTEM); 3250 } 3251 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3252 } break; 3253 case MSG_FINISH_INPUT_CONNECTION: { 3254 InputMethodManager imm = InputMethodManager.peekInstance(); 3255 if (imm != null) { 3256 imm.reportFinishInputConnection((InputConnection)msg.obj); 3257 } 3258 } break; 3259 case MSG_CHECK_FOCUS: { 3260 InputMethodManager imm = InputMethodManager.peekInstance(); 3261 if (imm != null) { 3262 imm.checkFocus(); 3263 } 3264 } break; 3265 case MSG_CLOSE_SYSTEM_DIALOGS: { 3266 if (mView != null) { 3267 mView.onCloseSystemDialogs((String)msg.obj); 3268 } 3269 } break; 3270 case MSG_DISPATCH_DRAG_EVENT: 3271 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3272 DragEvent event = (DragEvent)msg.obj; 3273 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3274 handleDragEvent(event); 3275 } break; 3276 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3277 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3278 } break; 3279 case MSG_UPDATE_CONFIGURATION: { 3280 Configuration config = (Configuration)msg.obj; 3281 if (config.isOtherSeqNewer(mLastConfiguration)) { 3282 config = mLastConfiguration; 3283 } 3284 updateConfiguration(config, false); 3285 } break; 3286 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3287 setAccessibilityFocus(null, null); 3288 } break; 3289 case MSG_DISPATCH_DONE_ANIMATING: { 3290 handleDispatchDoneAnimating(); 3291 } break; 3292 case MSG_INVALIDATE_WORLD: { 3293 if (mView != null) { 3294 invalidateWorld(mView); 3295 } 3296 } break; 3297 case MSG_DISPATCH_WINDOW_SHOWN: { 3298 handleDispatchWindowShown(); 3299 } 3300 } 3301 } 3302 } 3303 3304 final ViewRootHandler mHandler = new ViewRootHandler(); 3305 3306 /** 3307 * Something in the current window tells us we need to change the touch mode. For 3308 * example, we are not in touch mode, and the user touches the screen. 3309 * 3310 * If the touch mode has changed, tell the window manager, and handle it locally. 3311 * 3312 * @param inTouchMode Whether we want to be in touch mode. 3313 * @return True if the touch mode changed and focus changed was changed as a result 3314 */ 3315 boolean ensureTouchMode(boolean inTouchMode) { 3316 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3317 + "touch mode is " + mAttachInfo.mInTouchMode); 3318 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3319 3320 // tell the window manager 3321 try { 3322 if (!isInLocalFocusMode()) { 3323 mWindowSession.setInTouchMode(inTouchMode); 3324 } 3325 } catch (RemoteException e) { 3326 throw new RuntimeException(e); 3327 } 3328 3329 // handle the change 3330 return ensureTouchModeLocally(inTouchMode); 3331 } 3332 3333 /** 3334 * Ensure that the touch mode for this window is set, and if it is changing, 3335 * take the appropriate action. 3336 * @param inTouchMode Whether we want to be in touch mode. 3337 * @return True if the touch mode changed and focus changed was changed as a result 3338 */ 3339 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3340 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3341 + "touch mode is " + mAttachInfo.mInTouchMode); 3342 3343 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3344 3345 mAttachInfo.mInTouchMode = inTouchMode; 3346 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3347 3348 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3349 } 3350 3351 private boolean enterTouchMode() { 3352 if (mView != null && mView.hasFocus()) { 3353 // note: not relying on mFocusedView here because this could 3354 // be when the window is first being added, and mFocused isn't 3355 // set yet. 3356 final View focused = mView.findFocus(); 3357 if (focused != null && !focused.isFocusableInTouchMode()) { 3358 final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused); 3359 if (ancestorToTakeFocus != null) { 3360 // there is an ancestor that wants focus after its 3361 // descendants that is focusable in touch mode.. give it 3362 // focus 3363 return ancestorToTakeFocus.requestFocus(); 3364 } else { 3365 // There's nothing to focus. Clear and propagate through the 3366 // hierarchy, but don't attempt to place new focus. 3367 focused.clearFocusInternal(null, true, false); 3368 return true; 3369 } 3370 } 3371 } 3372 return false; 3373 } 3374 3375 /** 3376 * Find an ancestor of focused that wants focus after its descendants and is 3377 * focusable in touch mode. 3378 * @param focused The currently focused view. 3379 * @return An appropriate view, or null if no such view exists. 3380 */ 3381 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3382 ViewParent parent = focused.getParent(); 3383 while (parent instanceof ViewGroup) { 3384 final ViewGroup vgParent = (ViewGroup) parent; 3385 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3386 && vgParent.isFocusableInTouchMode()) { 3387 return vgParent; 3388 } 3389 if (vgParent.isRootNamespace()) { 3390 return null; 3391 } else { 3392 parent = vgParent.getParent(); 3393 } 3394 } 3395 return null; 3396 } 3397 3398 private boolean leaveTouchMode() { 3399 if (mView != null) { 3400 if (mView.hasFocus()) { 3401 View focusedView = mView.findFocus(); 3402 if (!(focusedView instanceof ViewGroup)) { 3403 // some view has focus, let it keep it 3404 return false; 3405 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3406 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3407 // some view group has focus, and doesn't prefer its children 3408 // over itself for focus, so let them keep it. 3409 return false; 3410 } 3411 } 3412 3413 // find the best view to give focus to in this brave new non-touch-mode 3414 // world 3415 final View focused = focusSearch(null, View.FOCUS_DOWN); 3416 if (focused != null) { 3417 return focused.requestFocus(View.FOCUS_DOWN); 3418 } 3419 } 3420 return false; 3421 } 3422 3423 /** 3424 * Base class for implementing a stage in the chain of responsibility 3425 * for processing input events. 3426 * <p> 3427 * Events are delivered to the stage by the {@link #deliver} method. The stage 3428 * then has the choice of finishing the event or forwarding it to the next stage. 3429 * </p> 3430 */ 3431 abstract class InputStage { 3432 private final InputStage mNext; 3433 3434 protected static final int FORWARD = 0; 3435 protected static final int FINISH_HANDLED = 1; 3436 protected static final int FINISH_NOT_HANDLED = 2; 3437 3438 /** 3439 * Creates an input stage. 3440 * @param next The next stage to which events should be forwarded. 3441 */ 3442 public InputStage(InputStage next) { 3443 mNext = next; 3444 } 3445 3446 /** 3447 * Delivers an event to be processed. 3448 */ 3449 public final void deliver(QueuedInputEvent q) { 3450 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3451 forward(q); 3452 } else if (shouldDropInputEvent(q)) { 3453 finish(q, false); 3454 } else { 3455 apply(q, onProcess(q)); 3456 } 3457 } 3458 3459 /** 3460 * Marks the the input event as finished then forwards it to the next stage. 3461 */ 3462 protected void finish(QueuedInputEvent q, boolean handled) { 3463 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3464 if (handled) { 3465 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3466 } 3467 forward(q); 3468 } 3469 3470 /** 3471 * Forwards the event to the next stage. 3472 */ 3473 protected void forward(QueuedInputEvent q) { 3474 onDeliverToNext(q); 3475 } 3476 3477 /** 3478 * Applies a result code from {@link #onProcess} to the specified event. 3479 */ 3480 protected void apply(QueuedInputEvent q, int result) { 3481 if (result == FORWARD) { 3482 forward(q); 3483 } else if (result == FINISH_HANDLED) { 3484 finish(q, true); 3485 } else if (result == FINISH_NOT_HANDLED) { 3486 finish(q, false); 3487 } else { 3488 throw new IllegalArgumentException("Invalid result: " + result); 3489 } 3490 } 3491 3492 /** 3493 * Called when an event is ready to be processed. 3494 * @return A result code indicating how the event was handled. 3495 */ 3496 protected int onProcess(QueuedInputEvent q) { 3497 return FORWARD; 3498 } 3499 3500 /** 3501 * Called when an event is being delivered to the next stage. 3502 */ 3503 protected void onDeliverToNext(QueuedInputEvent q) { 3504 if (DEBUG_INPUT_STAGES) { 3505 Log.v(TAG, "Done with " + getClass().getSimpleName() + ". " + q); 3506 } 3507 if (mNext != null) { 3508 mNext.deliver(q); 3509 } else { 3510 finishInputEvent(q); 3511 } 3512 } 3513 3514 protected boolean shouldDropInputEvent(QueuedInputEvent q) { 3515 if (mView == null || !mAdded) { 3516 Slog.w(TAG, "Dropping event due to root view being removed: " + q.mEvent); 3517 return true; 3518 } else if (!mAttachInfo.mHasWindowFocus && 3519 !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER) && 3520 !isTerminalInputEvent(q.mEvent)) { 3521 // If this is a focused event and the window doesn't currently have input focus, 3522 // then drop this event. This could be an event that came back from the previous 3523 // stage but the window has lost focus in the meantime. 3524 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 3525 return true; 3526 } 3527 return false; 3528 } 3529 3530 void dump(String prefix, PrintWriter writer) { 3531 if (mNext != null) { 3532 mNext.dump(prefix, writer); 3533 } 3534 } 3535 } 3536 3537 /** 3538 * Base class for implementing an input pipeline stage that supports 3539 * asynchronous and out-of-order processing of input events. 3540 * <p> 3541 * In addition to what a normal input stage can do, an asynchronous 3542 * input stage may also defer an input event that has been delivered to it 3543 * and finish or forward it later. 3544 * </p> 3545 */ 3546 abstract class AsyncInputStage extends InputStage { 3547 private final String mTraceCounter; 3548 3549 private QueuedInputEvent mQueueHead; 3550 private QueuedInputEvent mQueueTail; 3551 private int mQueueLength; 3552 3553 protected static final int DEFER = 3; 3554 3555 /** 3556 * Creates an asynchronous input stage. 3557 * @param next The next stage to which events should be forwarded. 3558 * @param traceCounter The name of a counter to record the size of 3559 * the queue of pending events. 3560 */ 3561 public AsyncInputStage(InputStage next, String traceCounter) { 3562 super(next); 3563 mTraceCounter = traceCounter; 3564 } 3565 3566 /** 3567 * Marks the event as deferred, which is to say that it will be handled 3568 * asynchronously. The caller is responsible for calling {@link #forward} 3569 * or {@link #finish} later when it is done handling the event. 3570 */ 3571 protected void defer(QueuedInputEvent q) { 3572 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3573 enqueue(q); 3574 } 3575 3576 @Override 3577 protected void forward(QueuedInputEvent q) { 3578 // Clear the deferred flag. 3579 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3580 3581 // Fast path if the queue is empty. 3582 QueuedInputEvent curr = mQueueHead; 3583 if (curr == null) { 3584 super.forward(q); 3585 return; 3586 } 3587 3588 // Determine whether the event must be serialized behind any others 3589 // before it can be delivered to the next stage. This is done because 3590 // deferred events might be handled out of order by the stage. 3591 final int deviceId = q.mEvent.getDeviceId(); 3592 QueuedInputEvent prev = null; 3593 boolean blocked = false; 3594 while (curr != null && curr != q) { 3595 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 3596 blocked = true; 3597 } 3598 prev = curr; 3599 curr = curr.mNext; 3600 } 3601 3602 // If the event is blocked, then leave it in the queue to be delivered later. 3603 // Note that the event might not yet be in the queue if it was not previously 3604 // deferred so we will enqueue it if needed. 3605 if (blocked) { 3606 if (curr == null) { 3607 enqueue(q); 3608 } 3609 return; 3610 } 3611 3612 // The event is not blocked. Deliver it immediately. 3613 if (curr != null) { 3614 curr = curr.mNext; 3615 dequeue(q, prev); 3616 } 3617 super.forward(q); 3618 3619 // Dequeuing this event may have unblocked successors. Deliver them. 3620 while (curr != null) { 3621 if (deviceId == curr.mEvent.getDeviceId()) { 3622 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 3623 break; 3624 } 3625 QueuedInputEvent next = curr.mNext; 3626 dequeue(curr, prev); 3627 super.forward(curr); 3628 curr = next; 3629 } else { 3630 prev = curr; 3631 curr = curr.mNext; 3632 } 3633 } 3634 } 3635 3636 @Override 3637 protected void apply(QueuedInputEvent q, int result) { 3638 if (result == DEFER) { 3639 defer(q); 3640 } else { 3641 super.apply(q, result); 3642 } 3643 } 3644 3645 private void enqueue(QueuedInputEvent q) { 3646 if (mQueueTail == null) { 3647 mQueueHead = q; 3648 mQueueTail = q; 3649 } else { 3650 mQueueTail.mNext = q; 3651 mQueueTail = q; 3652 } 3653 3654 mQueueLength += 1; 3655 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3656 } 3657 3658 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 3659 if (prev == null) { 3660 mQueueHead = q.mNext; 3661 } else { 3662 prev.mNext = q.mNext; 3663 } 3664 if (mQueueTail == q) { 3665 mQueueTail = prev; 3666 } 3667 q.mNext = null; 3668 3669 mQueueLength -= 1; 3670 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3671 } 3672 3673 @Override 3674 void dump(String prefix, PrintWriter writer) { 3675 writer.print(prefix); 3676 writer.print(getClass().getName()); 3677 writer.print(": mQueueLength="); 3678 writer.println(mQueueLength); 3679 3680 super.dump(prefix, writer); 3681 } 3682 } 3683 3684 /** 3685 * Delivers pre-ime input events to a native activity. 3686 * Does not support pointer events. 3687 */ 3688 final class NativePreImeInputStage extends AsyncInputStage 3689 implements InputQueue.FinishedInputEventCallback { 3690 public NativePreImeInputStage(InputStage next, String traceCounter) { 3691 super(next, traceCounter); 3692 } 3693 3694 @Override 3695 protected int onProcess(QueuedInputEvent q) { 3696 if (mInputQueue != null && q.mEvent instanceof KeyEvent) { 3697 mInputQueue.sendInputEvent(q.mEvent, q, true, this); 3698 return DEFER; 3699 } 3700 return FORWARD; 3701 } 3702 3703 @Override 3704 public void onFinishedInputEvent(Object token, boolean handled) { 3705 QueuedInputEvent q = (QueuedInputEvent)token; 3706 if (handled) { 3707 finish(q, true); 3708 return; 3709 } 3710 forward(q); 3711 } 3712 } 3713 3714 /** 3715 * Delivers pre-ime input events to the view hierarchy. 3716 * Does not support pointer events. 3717 */ 3718 final class ViewPreImeInputStage extends InputStage { 3719 public ViewPreImeInputStage(InputStage next) { 3720 super(next); 3721 } 3722 3723 @Override 3724 protected int onProcess(QueuedInputEvent q) { 3725 if (q.mEvent instanceof KeyEvent) { 3726 return processKeyEvent(q); 3727 } 3728 return FORWARD; 3729 } 3730 3731 private int processKeyEvent(QueuedInputEvent q) { 3732 final KeyEvent event = (KeyEvent)q.mEvent; 3733 if (mView.dispatchKeyEventPreIme(event)) { 3734 return FINISH_HANDLED; 3735 } 3736 return FORWARD; 3737 } 3738 } 3739 3740 /** 3741 * Delivers input events to the ime. 3742 * Does not support pointer events. 3743 */ 3744 final class ImeInputStage extends AsyncInputStage 3745 implements InputMethodManager.FinishedInputEventCallback { 3746 public ImeInputStage(InputStage next, String traceCounter) { 3747 super(next, traceCounter); 3748 } 3749 3750 @Override 3751 protected int onProcess(QueuedInputEvent q) { 3752 if (mLastWasImTarget && !isInLocalFocusMode()) { 3753 InputMethodManager imm = InputMethodManager.peekInstance(); 3754 if (imm != null) { 3755 final InputEvent event = q.mEvent; 3756 if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event); 3757 int result = imm.dispatchInputEvent(event, q, this, mHandler); 3758 if (result == InputMethodManager.DISPATCH_HANDLED) { 3759 return FINISH_HANDLED; 3760 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 3761 // The IME could not handle it, so skip along to the next InputStage 3762 return FORWARD; 3763 } else { 3764 return DEFER; // callback will be invoked later 3765 } 3766 } 3767 } 3768 return FORWARD; 3769 } 3770 3771 @Override 3772 public void onFinishedInputEvent(Object token, boolean handled) { 3773 QueuedInputEvent q = (QueuedInputEvent)token; 3774 if (handled) { 3775 finish(q, true); 3776 return; 3777 } 3778 forward(q); 3779 } 3780 } 3781 3782 /** 3783 * Performs early processing of post-ime input events. 3784 */ 3785 final class EarlyPostImeInputStage extends InputStage { 3786 public EarlyPostImeInputStage(InputStage next) { 3787 super(next); 3788 } 3789 3790 @Override 3791 protected int onProcess(QueuedInputEvent q) { 3792 if (q.mEvent instanceof KeyEvent) { 3793 return processKeyEvent(q); 3794 } else { 3795 final int source = q.mEvent.getSource(); 3796 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3797 return processPointerEvent(q); 3798 } 3799 } 3800 return FORWARD; 3801 } 3802 3803 private int processKeyEvent(QueuedInputEvent q) { 3804 final KeyEvent event = (KeyEvent)q.mEvent; 3805 3806 // If the key's purpose is to exit touch mode then we consume it 3807 // and consider it handled. 3808 if (checkForLeavingTouchModeAndConsume(event)) { 3809 return FINISH_HANDLED; 3810 } 3811 3812 // Make sure the fallback event policy sees all keys that will be 3813 // delivered to the view hierarchy. 3814 mFallbackEventHandler.preDispatchKeyEvent(event); 3815 return FORWARD; 3816 } 3817 3818 private int processPointerEvent(QueuedInputEvent q) { 3819 final MotionEvent event = (MotionEvent)q.mEvent; 3820 3821 // Translate the pointer event for compatibility, if needed. 3822 if (mTranslator != null) { 3823 mTranslator.translateEventInScreenToAppWindow(event); 3824 } 3825 3826 // Enter touch mode on down or scroll. 3827 final int action = event.getAction(); 3828 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3829 ensureTouchMode(true); 3830 } 3831 3832 // Offset the scroll position. 3833 if (mCurScrollY != 0) { 3834 event.offsetLocation(0, mCurScrollY); 3835 } 3836 3837 // Remember the touch position for possible drag-initiation. 3838 if (event.isTouchEvent()) { 3839 mLastTouchPoint.x = event.getRawX(); 3840 mLastTouchPoint.y = event.getRawY(); 3841 } 3842 return FORWARD; 3843 } 3844 } 3845 3846 /** 3847 * Delivers post-ime input events to a native activity. 3848 */ 3849 final class NativePostImeInputStage extends AsyncInputStage 3850 implements InputQueue.FinishedInputEventCallback { 3851 public NativePostImeInputStage(InputStage next, String traceCounter) { 3852 super(next, traceCounter); 3853 } 3854 3855 @Override 3856 protected int onProcess(QueuedInputEvent q) { 3857 if (mInputQueue != null) { 3858 mInputQueue.sendInputEvent(q.mEvent, q, false, this); 3859 return DEFER; 3860 } 3861 return FORWARD; 3862 } 3863 3864 @Override 3865 public void onFinishedInputEvent(Object token, boolean handled) { 3866 QueuedInputEvent q = (QueuedInputEvent)token; 3867 if (handled) { 3868 finish(q, true); 3869 return; 3870 } 3871 forward(q); 3872 } 3873 } 3874 3875 /** 3876 * Delivers post-ime input events to the view hierarchy. 3877 */ 3878 final class ViewPostImeInputStage extends InputStage { 3879 public ViewPostImeInputStage(InputStage next) { 3880 super(next); 3881 } 3882 3883 @Override 3884 protected int onProcess(QueuedInputEvent q) { 3885 if (q.mEvent instanceof KeyEvent) { 3886 return processKeyEvent(q); 3887 } else { 3888 // If delivering a new non-key event, make sure the window is 3889 // now allowed to start updating. 3890 handleDispatchDoneAnimating(); 3891 final int source = q.mEvent.getSource(); 3892 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3893 return processPointerEvent(q); 3894 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3895 return processTrackballEvent(q); 3896 } else { 3897 return processGenericMotionEvent(q); 3898 } 3899 } 3900 } 3901 3902 @Override 3903 protected void onDeliverToNext(QueuedInputEvent q) { 3904 if (mUnbufferedInputDispatch 3905 && q.mEvent instanceof MotionEvent 3906 && ((MotionEvent)q.mEvent).isTouchEvent() 3907 && isTerminalInputEvent(q.mEvent)) { 3908 mUnbufferedInputDispatch = false; 3909 scheduleConsumeBatchedInput(); 3910 } 3911 super.onDeliverToNext(q); 3912 } 3913 3914 private int processKeyEvent(QueuedInputEvent q) { 3915 final KeyEvent event = (KeyEvent)q.mEvent; 3916 3917 if (event.getAction() != KeyEvent.ACTION_UP) { 3918 // If delivering a new key event, make sure the window is 3919 // now allowed to start updating. 3920 handleDispatchDoneAnimating(); 3921 } 3922 3923 // Deliver the key to the view hierarchy. 3924 if (mView.dispatchKeyEvent(event)) { 3925 return FINISH_HANDLED; 3926 } 3927 3928 if (shouldDropInputEvent(q)) { 3929 return FINISH_NOT_HANDLED; 3930 } 3931 3932 // If the Control modifier is held, try to interpret the key as a shortcut. 3933 if (event.getAction() == KeyEvent.ACTION_DOWN 3934 && event.isCtrlPressed() 3935 && event.getRepeatCount() == 0 3936 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3937 if (mView.dispatchKeyShortcutEvent(event)) { 3938 return FINISH_HANDLED; 3939 } 3940 if (shouldDropInputEvent(q)) { 3941 return FINISH_NOT_HANDLED; 3942 } 3943 } 3944 3945 // Apply the fallback event policy. 3946 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3947 return FINISH_HANDLED; 3948 } 3949 if (shouldDropInputEvent(q)) { 3950 return FINISH_NOT_HANDLED; 3951 } 3952 3953 // Handle automatic focus changes. 3954 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3955 int direction = 0; 3956 switch (event.getKeyCode()) { 3957 case KeyEvent.KEYCODE_DPAD_LEFT: 3958 if (event.hasNoModifiers()) { 3959 direction = View.FOCUS_LEFT; 3960 } 3961 break; 3962 case KeyEvent.KEYCODE_DPAD_RIGHT: 3963 if (event.hasNoModifiers()) { 3964 direction = View.FOCUS_RIGHT; 3965 } 3966 break; 3967 case KeyEvent.KEYCODE_DPAD_UP: 3968 if (event.hasNoModifiers()) { 3969 direction = View.FOCUS_UP; 3970 } 3971 break; 3972 case KeyEvent.KEYCODE_DPAD_DOWN: 3973 if (event.hasNoModifiers()) { 3974 direction = View.FOCUS_DOWN; 3975 } 3976 break; 3977 case KeyEvent.KEYCODE_TAB: 3978 if (event.hasNoModifiers()) { 3979 direction = View.FOCUS_FORWARD; 3980 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3981 direction = View.FOCUS_BACKWARD; 3982 } 3983 break; 3984 } 3985 if (direction != 0) { 3986 View focused = mView.findFocus(); 3987 if (focused != null) { 3988 View v = focused.focusSearch(direction); 3989 if (v != null && v != focused) { 3990 // do the math the get the interesting rect 3991 // of previous focused into the coord system of 3992 // newly focused view 3993 focused.getFocusedRect(mTempRect); 3994 if (mView instanceof ViewGroup) { 3995 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3996 focused, mTempRect); 3997 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3998 v, mTempRect); 3999 } 4000 if (v.requestFocus(direction, mTempRect)) { 4001 playSoundEffect(SoundEffectConstants 4002 .getContantForFocusDirection(direction)); 4003 return FINISH_HANDLED; 4004 } 4005 } 4006 4007 // Give the focused view a last chance to handle the dpad key. 4008 if (mView.dispatchUnhandledMove(focused, direction)) { 4009 return FINISH_HANDLED; 4010 } 4011 } else { 4012 // find the best view to give focus to in this non-touch-mode with no-focus 4013 View v = focusSearch(null, direction); 4014 if (v != null && v.requestFocus(direction)) { 4015 return FINISH_HANDLED; 4016 } 4017 } 4018 } 4019 } 4020 return FORWARD; 4021 } 4022 4023 private int processPointerEvent(QueuedInputEvent q) { 4024 final MotionEvent event = (MotionEvent)q.mEvent; 4025 4026 mAttachInfo.mUnbufferedDispatchRequested = false; 4027 boolean handled = mView.dispatchPointerEvent(event); 4028 if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) { 4029 mUnbufferedInputDispatch = true; 4030 if (mConsumeBatchedInputScheduled) { 4031 scheduleConsumeBatchedInputImmediately(); 4032 } 4033 } 4034 return handled ? FINISH_HANDLED : FORWARD; 4035 } 4036 4037 private int processTrackballEvent(QueuedInputEvent q) { 4038 final MotionEvent event = (MotionEvent)q.mEvent; 4039 4040 if (mView.dispatchTrackballEvent(event)) { 4041 return FINISH_HANDLED; 4042 } 4043 return FORWARD; 4044 } 4045 4046 private int processGenericMotionEvent(QueuedInputEvent q) { 4047 final MotionEvent event = (MotionEvent)q.mEvent; 4048 4049 // Deliver the event to the view. 4050 if (mView.dispatchGenericMotionEvent(event)) { 4051 return FINISH_HANDLED; 4052 } 4053 return FORWARD; 4054 } 4055 } 4056 4057 /** 4058 * Performs synthesis of new input events from unhandled input events. 4059 */ 4060 final class SyntheticInputStage extends InputStage { 4061 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 4062 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 4063 private final SyntheticTouchNavigationHandler mTouchNavigation = 4064 new SyntheticTouchNavigationHandler(); 4065 private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler(); 4066 4067 public SyntheticInputStage() { 4068 super(null); 4069 } 4070 4071 @Override 4072 protected int onProcess(QueuedInputEvent q) { 4073 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 4074 if (q.mEvent instanceof MotionEvent) { 4075 final MotionEvent event = (MotionEvent)q.mEvent; 4076 final int source = event.getSource(); 4077 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4078 mTrackball.process(event); 4079 return FINISH_HANDLED; 4080 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4081 mJoystick.process(event); 4082 return FINISH_HANDLED; 4083 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4084 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4085 mTouchNavigation.process(event); 4086 return FINISH_HANDLED; 4087 } 4088 } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) { 4089 mKeyboard.process((KeyEvent)q.mEvent); 4090 return FINISH_HANDLED; 4091 } 4092 4093 return FORWARD; 4094 } 4095 4096 @Override 4097 protected void onDeliverToNext(QueuedInputEvent q) { 4098 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 4099 // Cancel related synthetic events if any prior stage has handled the event. 4100 if (q.mEvent instanceof MotionEvent) { 4101 final MotionEvent event = (MotionEvent)q.mEvent; 4102 final int source = event.getSource(); 4103 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4104 mTrackball.cancel(event); 4105 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4106 mJoystick.cancel(event); 4107 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4108 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4109 mTouchNavigation.cancel(event); 4110 } 4111 } 4112 } 4113 super.onDeliverToNext(q); 4114 } 4115 } 4116 4117 /** 4118 * Creates dpad events from unhandled trackball movements. 4119 */ 4120 final class SyntheticTrackballHandler { 4121 private final TrackballAxis mX = new TrackballAxis(); 4122 private final TrackballAxis mY = new TrackballAxis(); 4123 private long mLastTime; 4124 4125 public void process(MotionEvent event) { 4126 // Translate the trackball event into DPAD keys and try to deliver those. 4127 long curTime = SystemClock.uptimeMillis(); 4128 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 4129 // It has been too long since the last movement, 4130 // so restart at the beginning. 4131 mX.reset(0); 4132 mY.reset(0); 4133 mLastTime = curTime; 4134 } 4135 4136 final int action = event.getAction(); 4137 final int metaState = event.getMetaState(); 4138 switch (action) { 4139 case MotionEvent.ACTION_DOWN: 4140 mX.reset(2); 4141 mY.reset(2); 4142 enqueueInputEvent(new KeyEvent(curTime, curTime, 4143 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4144 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4145 InputDevice.SOURCE_KEYBOARD)); 4146 break; 4147 case MotionEvent.ACTION_UP: 4148 mX.reset(2); 4149 mY.reset(2); 4150 enqueueInputEvent(new KeyEvent(curTime, curTime, 4151 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4152 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4153 InputDevice.SOURCE_KEYBOARD)); 4154 break; 4155 } 4156 4157 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step=" 4158 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 4159 + " move=" + event.getX() 4160 + " / Y=" + mY.position + " step=" 4161 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 4162 + " move=" + event.getY()); 4163 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 4164 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 4165 4166 // Generate DPAD events based on the trackball movement. 4167 // We pick the axis that has moved the most as the direction of 4168 // the DPAD. When we generate DPAD events for one axis, then the 4169 // other axis is reset -- we don't want to perform DPAD jumps due 4170 // to slight movements in the trackball when making major movements 4171 // along the other axis. 4172 int keycode = 0; 4173 int movement = 0; 4174 float accel = 1; 4175 if (xOff > yOff) { 4176 movement = mX.generate(); 4177 if (movement != 0) { 4178 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 4179 : KeyEvent.KEYCODE_DPAD_LEFT; 4180 accel = mX.acceleration; 4181 mY.reset(2); 4182 } 4183 } else if (yOff > 0) { 4184 movement = mY.generate(); 4185 if (movement != 0) { 4186 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 4187 : KeyEvent.KEYCODE_DPAD_UP; 4188 accel = mY.acceleration; 4189 mX.reset(2); 4190 } 4191 } 4192 4193 if (keycode != 0) { 4194 if (movement < 0) movement = -movement; 4195 int accelMovement = (int)(movement * accel); 4196 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 4197 + " accelMovement=" + accelMovement 4198 + " accel=" + accel); 4199 if (accelMovement > movement) { 4200 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4201 + keycode); 4202 movement--; 4203 int repeatCount = accelMovement - movement; 4204 enqueueInputEvent(new KeyEvent(curTime, curTime, 4205 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4206 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4207 InputDevice.SOURCE_KEYBOARD)); 4208 } 4209 while (movement > 0) { 4210 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4211 + keycode); 4212 movement--; 4213 curTime = SystemClock.uptimeMillis(); 4214 enqueueInputEvent(new KeyEvent(curTime, curTime, 4215 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4216 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4217 InputDevice.SOURCE_KEYBOARD)); 4218 enqueueInputEvent(new KeyEvent(curTime, curTime, 4219 KeyEvent.ACTION_UP, keycode, 0, metaState, 4220 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4221 InputDevice.SOURCE_KEYBOARD)); 4222 } 4223 mLastTime = curTime; 4224 } 4225 } 4226 4227 public void cancel(MotionEvent event) { 4228 mLastTime = Integer.MIN_VALUE; 4229 4230 // If we reach this, we consumed a trackball event. 4231 // Because we will not translate the trackball event into a key event, 4232 // touch mode will not exit, so we exit touch mode here. 4233 if (mView != null && mAdded) { 4234 ensureTouchMode(false); 4235 } 4236 } 4237 } 4238 4239 /** 4240 * Maintains state information for a single trackball axis, generating 4241 * discrete (DPAD) movements based on raw trackball motion. 4242 */ 4243 static final class TrackballAxis { 4244 /** 4245 * The maximum amount of acceleration we will apply. 4246 */ 4247 static final float MAX_ACCELERATION = 20; 4248 4249 /** 4250 * The maximum amount of time (in milliseconds) between events in order 4251 * for us to consider the user to be doing fast trackball movements, 4252 * and thus apply an acceleration. 4253 */ 4254 static final long FAST_MOVE_TIME = 150; 4255 4256 /** 4257 * Scaling factor to the time (in milliseconds) between events to how 4258 * much to multiple/divide the current acceleration. When movement 4259 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4260 * FAST_MOVE_TIME it divides it. 4261 */ 4262 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4263 4264 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4265 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4266 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4267 4268 float position; 4269 float acceleration = 1; 4270 long lastMoveTime = 0; 4271 int step; 4272 int dir; 4273 int nonAccelMovement; 4274 4275 void reset(int _step) { 4276 position = 0; 4277 acceleration = 1; 4278 lastMoveTime = 0; 4279 step = _step; 4280 dir = 0; 4281 } 4282 4283 /** 4284 * Add trackball movement into the state. If the direction of movement 4285 * has been reversed, the state is reset before adding the 4286 * movement (so that you don't have to compensate for any previously 4287 * collected movement before see the result of the movement in the 4288 * new direction). 4289 * 4290 * @return Returns the absolute value of the amount of movement 4291 * collected so far. 4292 */ 4293 float collect(float off, long time, String axis) { 4294 long normTime; 4295 if (off > 0) { 4296 normTime = (long)(off * FAST_MOVE_TIME); 4297 if (dir < 0) { 4298 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4299 position = 0; 4300 step = 0; 4301 acceleration = 1; 4302 lastMoveTime = 0; 4303 } 4304 dir = 1; 4305 } else if (off < 0) { 4306 normTime = (long)((-off) * FAST_MOVE_TIME); 4307 if (dir > 0) { 4308 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4309 position = 0; 4310 step = 0; 4311 acceleration = 1; 4312 lastMoveTime = 0; 4313 } 4314 dir = -1; 4315 } else { 4316 normTime = 0; 4317 } 4318 4319 // The number of milliseconds between each movement that is 4320 // considered "normal" and will not result in any acceleration 4321 // or deceleration, scaled by the offset we have here. 4322 if (normTime > 0) { 4323 long delta = time - lastMoveTime; 4324 lastMoveTime = time; 4325 float acc = acceleration; 4326 if (delta < normTime) { 4327 // The user is scrolling rapidly, so increase acceleration. 4328 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4329 if (scale > 1) acc *= scale; 4330 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4331 + off + " normTime=" + normTime + " delta=" + delta 4332 + " scale=" + scale + " acc=" + acc); 4333 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4334 } else { 4335 // The user is scrolling slowly, so decrease acceleration. 4336 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4337 if (scale > 1) acc /= scale; 4338 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4339 + off + " normTime=" + normTime + " delta=" + delta 4340 + " scale=" + scale + " acc=" + acc); 4341 acceleration = acc > 1 ? acc : 1; 4342 } 4343 } 4344 position += off; 4345 return Math.abs(position); 4346 } 4347 4348 /** 4349 * Generate the number of discrete movement events appropriate for 4350 * the currently collected trackball movement. 4351 * 4352 * @return Returns the number of discrete movements, either positive 4353 * or negative, or 0 if there is not enough trackball movement yet 4354 * for a discrete movement. 4355 */ 4356 int generate() { 4357 int movement = 0; 4358 nonAccelMovement = 0; 4359 do { 4360 final int dir = position >= 0 ? 1 : -1; 4361 switch (step) { 4362 // If we are going to execute the first step, then we want 4363 // to do this as soon as possible instead of waiting for 4364 // a full movement, in order to make things look responsive. 4365 case 0: 4366 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4367 return movement; 4368 } 4369 movement += dir; 4370 nonAccelMovement += dir; 4371 step = 1; 4372 break; 4373 // If we have generated the first movement, then we need 4374 // to wait for the second complete trackball motion before 4375 // generating the second discrete movement. 4376 case 1: 4377 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4378 return movement; 4379 } 4380 movement += dir; 4381 nonAccelMovement += dir; 4382 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4383 step = 2; 4384 break; 4385 // After the first two, we generate discrete movements 4386 // consistently with the trackball, applying an acceleration 4387 // if the trackball is moving quickly. This is a simple 4388 // acceleration on top of what we already compute based 4389 // on how quickly the wheel is being turned, to apply 4390 // a longer increasing acceleration to continuous movement 4391 // in one direction. 4392 default: 4393 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4394 return movement; 4395 } 4396 movement += dir; 4397 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4398 float acc = acceleration; 4399 acc *= 1.1f; 4400 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4401 break; 4402 } 4403 } while (true); 4404 } 4405 } 4406 4407 /** 4408 * Creates dpad events from unhandled joystick movements. 4409 */ 4410 final class SyntheticJoystickHandler extends Handler { 4411 private final static String TAG = "SyntheticJoystickHandler"; 4412 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4413 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4414 4415 private int mLastXDirection; 4416 private int mLastYDirection; 4417 private int mLastXKeyCode; 4418 private int mLastYKeyCode; 4419 4420 public SyntheticJoystickHandler() { 4421 super(true); 4422 } 4423 4424 @Override 4425 public void handleMessage(Message msg) { 4426 switch (msg.what) { 4427 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4428 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4429 KeyEvent oldEvent = (KeyEvent)msg.obj; 4430 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4431 SystemClock.uptimeMillis(), 4432 oldEvent.getRepeatCount() + 1); 4433 if (mAttachInfo.mHasWindowFocus) { 4434 enqueueInputEvent(e); 4435 Message m = obtainMessage(msg.what, e); 4436 m.setAsynchronous(true); 4437 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4438 } 4439 } break; 4440 } 4441 } 4442 4443 public void process(MotionEvent event) { 4444 switch(event.getActionMasked()) { 4445 case MotionEvent.ACTION_CANCEL: 4446 cancel(event); 4447 break; 4448 case MotionEvent.ACTION_MOVE: 4449 update(event, true); 4450 break; 4451 default: 4452 Log.w(TAG, "Unexpected action: " + event.getActionMasked()); 4453 } 4454 } 4455 4456 private void cancel(MotionEvent event) { 4457 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4458 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4459 update(event, false); 4460 } 4461 4462 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4463 final long time = event.getEventTime(); 4464 final int metaState = event.getMetaState(); 4465 final int deviceId = event.getDeviceId(); 4466 final int source = event.getSource(); 4467 4468 int xDirection = joystickAxisValueToDirection( 4469 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4470 if (xDirection == 0) { 4471 xDirection = joystickAxisValueToDirection(event.getX()); 4472 } 4473 4474 int yDirection = joystickAxisValueToDirection( 4475 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4476 if (yDirection == 0) { 4477 yDirection = joystickAxisValueToDirection(event.getY()); 4478 } 4479 4480 if (xDirection != mLastXDirection) { 4481 if (mLastXKeyCode != 0) { 4482 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4483 enqueueInputEvent(new KeyEvent(time, time, 4484 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4485 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4486 mLastXKeyCode = 0; 4487 } 4488 4489 mLastXDirection = xDirection; 4490 4491 if (xDirection != 0 && synthesizeNewKeys) { 4492 mLastXKeyCode = xDirection > 0 4493 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4494 final KeyEvent e = new KeyEvent(time, time, 4495 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4496 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4497 enqueueInputEvent(e); 4498 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4499 m.setAsynchronous(true); 4500 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4501 } 4502 } 4503 4504 if (yDirection != mLastYDirection) { 4505 if (mLastYKeyCode != 0) { 4506 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4507 enqueueInputEvent(new KeyEvent(time, time, 4508 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4509 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4510 mLastYKeyCode = 0; 4511 } 4512 4513 mLastYDirection = yDirection; 4514 4515 if (yDirection != 0 && synthesizeNewKeys) { 4516 mLastYKeyCode = yDirection > 0 4517 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4518 final KeyEvent e = new KeyEvent(time, time, 4519 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4520 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4521 enqueueInputEvent(e); 4522 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4523 m.setAsynchronous(true); 4524 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4525 } 4526 } 4527 } 4528 4529 private int joystickAxisValueToDirection(float value) { 4530 if (value >= 0.5f) { 4531 return 1; 4532 } else if (value <= -0.5f) { 4533 return -1; 4534 } else { 4535 return 0; 4536 } 4537 } 4538 } 4539 4540 /** 4541 * Creates dpad events from unhandled touch navigation movements. 4542 */ 4543 final class SyntheticTouchNavigationHandler extends Handler { 4544 private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 4545 private static final boolean LOCAL_DEBUG = false; 4546 4547 // Assumed nominal width and height in millimeters of a touch navigation pad, 4548 // if no resolution information is available from the input system. 4549 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 4550 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 4551 4552 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 4553 4554 // The nominal distance traveled to move by one unit. 4555 private static final int TICK_DISTANCE_MILLIMETERS = 12; 4556 4557 // Minimum and maximum fling velocity in ticks per second. 4558 // The minimum velocity should be set such that we perform enough ticks per 4559 // second that the fling appears to be fluid. For example, if we set the minimum 4560 // to 2 ticks per second, then there may be up to half a second delay between the next 4561 // to last and last ticks which is noticeably discrete and jerky. This value should 4562 // probably not be set to anything less than about 4. 4563 // If fling accuracy is a problem then consider tuning the tick distance instead. 4564 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 4565 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 4566 4567 // Fling velocity decay factor applied after each new key is emitted. 4568 // This parameter controls the deceleration and overall duration of the fling. 4569 // The fling stops automatically when its velocity drops below the minimum 4570 // fling velocity defined above. 4571 private static final float FLING_TICK_DECAY = 0.8f; 4572 4573 /* The input device that we are tracking. */ 4574 4575 private int mCurrentDeviceId = -1; 4576 private int mCurrentSource; 4577 private boolean mCurrentDeviceSupported; 4578 4579 /* Configuration for the current input device. */ 4580 4581 // The scaled tick distance. A movement of this amount should generally translate 4582 // into a single dpad event in a given direction. 4583 private float mConfigTickDistance; 4584 4585 // The minimum and maximum scaled fling velocity. 4586 private float mConfigMinFlingVelocity; 4587 private float mConfigMaxFlingVelocity; 4588 4589 /* Tracking state. */ 4590 4591 // The velocity tracker for detecting flings. 4592 private VelocityTracker mVelocityTracker; 4593 4594 // The active pointer id, or -1 if none. 4595 private int mActivePointerId = -1; 4596 4597 // Location where tracking started. 4598 private float mStartX; 4599 private float mStartY; 4600 4601 // Most recently observed position. 4602 private float mLastX; 4603 private float mLastY; 4604 4605 // Accumulated movement delta since the last direction key was sent. 4606 private float mAccumulatedX; 4607 private float mAccumulatedY; 4608 4609 // Set to true if any movement was delivered to the app. 4610 // Implies that tap slop was exceeded. 4611 private boolean mConsumedMovement; 4612 4613 // The most recently sent key down event. 4614 // The keycode remains set until the direction changes or a fling ends 4615 // so that repeated key events may be generated as required. 4616 private long mPendingKeyDownTime; 4617 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4618 private int mPendingKeyRepeatCount; 4619 private int mPendingKeyMetaState; 4620 4621 // The current fling velocity while a fling is in progress. 4622 private boolean mFlinging; 4623 private float mFlingVelocity; 4624 4625 public SyntheticTouchNavigationHandler() { 4626 super(true); 4627 } 4628 4629 public void process(MotionEvent event) { 4630 // Update the current device information. 4631 final long time = event.getEventTime(); 4632 final int deviceId = event.getDeviceId(); 4633 final int source = event.getSource(); 4634 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 4635 finishKeys(time); 4636 finishTracking(time); 4637 mCurrentDeviceId = deviceId; 4638 mCurrentSource = source; 4639 mCurrentDeviceSupported = false; 4640 InputDevice device = event.getDevice(); 4641 if (device != null) { 4642 // In order to support an input device, we must know certain 4643 // characteristics about it, such as its size and resolution. 4644 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 4645 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 4646 if (xRange != null && yRange != null) { 4647 mCurrentDeviceSupported = true; 4648 4649 // Infer the resolution if it not actually known. 4650 float xRes = xRange.getResolution(); 4651 if (xRes <= 0) { 4652 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 4653 } 4654 float yRes = yRange.getResolution(); 4655 if (yRes <= 0) { 4656 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 4657 } 4658 float nominalRes = (xRes + yRes) * 0.5f; 4659 4660 // Precompute all of the configuration thresholds we will need. 4661 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 4662 mConfigMinFlingVelocity = 4663 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4664 mConfigMaxFlingVelocity = 4665 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4666 4667 if (LOCAL_DEBUG) { 4668 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 4669 + " (" + Integer.toHexString(mCurrentSource) + "): " 4670 + ", mConfigTickDistance=" + mConfigTickDistance 4671 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 4672 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 4673 } 4674 } 4675 } 4676 } 4677 if (!mCurrentDeviceSupported) { 4678 return; 4679 } 4680 4681 // Handle the event. 4682 final int action = event.getActionMasked(); 4683 switch (action) { 4684 case MotionEvent.ACTION_DOWN: { 4685 boolean caughtFling = mFlinging; 4686 finishKeys(time); 4687 finishTracking(time); 4688 mActivePointerId = event.getPointerId(0); 4689 mVelocityTracker = VelocityTracker.obtain(); 4690 mVelocityTracker.addMovement(event); 4691 mStartX = event.getX(); 4692 mStartY = event.getY(); 4693 mLastX = mStartX; 4694 mLastY = mStartY; 4695 mAccumulatedX = 0; 4696 mAccumulatedY = 0; 4697 4698 // If we caught a fling, then pretend that the tap slop has already 4699 // been exceeded to suppress taps whose only purpose is to stop the fling. 4700 mConsumedMovement = caughtFling; 4701 break; 4702 } 4703 4704 case MotionEvent.ACTION_MOVE: 4705 case MotionEvent.ACTION_UP: { 4706 if (mActivePointerId < 0) { 4707 break; 4708 } 4709 final int index = event.findPointerIndex(mActivePointerId); 4710 if (index < 0) { 4711 finishKeys(time); 4712 finishTracking(time); 4713 break; 4714 } 4715 4716 mVelocityTracker.addMovement(event); 4717 final float x = event.getX(index); 4718 final float y = event.getY(index); 4719 mAccumulatedX += x - mLastX; 4720 mAccumulatedY += y - mLastY; 4721 mLastX = x; 4722 mLastY = y; 4723 4724 // Consume any accumulated movement so far. 4725 final int metaState = event.getMetaState(); 4726 consumeAccumulatedMovement(time, metaState); 4727 4728 // Detect taps and flings. 4729 if (action == MotionEvent.ACTION_UP) { 4730 if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4731 // It might be a fling. 4732 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 4733 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 4734 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 4735 if (!startFling(time, vx, vy)) { 4736 finishKeys(time); 4737 } 4738 } 4739 finishTracking(time); 4740 } 4741 break; 4742 } 4743 4744 case MotionEvent.ACTION_CANCEL: { 4745 finishKeys(time); 4746 finishTracking(time); 4747 break; 4748 } 4749 } 4750 } 4751 4752 public void cancel(MotionEvent event) { 4753 if (mCurrentDeviceId == event.getDeviceId() 4754 && mCurrentSource == event.getSource()) { 4755 final long time = event.getEventTime(); 4756 finishKeys(time); 4757 finishTracking(time); 4758 } 4759 } 4760 4761 private void finishKeys(long time) { 4762 cancelFling(); 4763 sendKeyUp(time); 4764 } 4765 4766 private void finishTracking(long time) { 4767 if (mActivePointerId >= 0) { 4768 mActivePointerId = -1; 4769 mVelocityTracker.recycle(); 4770 mVelocityTracker = null; 4771 } 4772 } 4773 4774 private void consumeAccumulatedMovement(long time, int metaState) { 4775 final float absX = Math.abs(mAccumulatedX); 4776 final float absY = Math.abs(mAccumulatedY); 4777 if (absX >= absY) { 4778 if (absX >= mConfigTickDistance) { 4779 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 4780 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 4781 mAccumulatedY = 0; 4782 mConsumedMovement = true; 4783 } 4784 } else { 4785 if (absY >= mConfigTickDistance) { 4786 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 4787 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 4788 mAccumulatedX = 0; 4789 mConsumedMovement = true; 4790 } 4791 } 4792 } 4793 4794 private float consumeAccumulatedMovement(long time, int metaState, 4795 float accumulator, int negativeKeyCode, int positiveKeyCode) { 4796 while (accumulator <= -mConfigTickDistance) { 4797 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 4798 accumulator += mConfigTickDistance; 4799 } 4800 while (accumulator >= mConfigTickDistance) { 4801 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 4802 accumulator -= mConfigTickDistance; 4803 } 4804 return accumulator; 4805 } 4806 4807 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 4808 if (mPendingKeyCode != keyCode) { 4809 sendKeyUp(time); 4810 mPendingKeyDownTime = time; 4811 mPendingKeyCode = keyCode; 4812 mPendingKeyRepeatCount = 0; 4813 } else { 4814 mPendingKeyRepeatCount += 1; 4815 } 4816 mPendingKeyMetaState = metaState; 4817 4818 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 4819 // but it doesn't quite make sense when simulating the events in this way. 4820 if (LOCAL_DEBUG) { 4821 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 4822 + ", repeatCount=" + mPendingKeyRepeatCount 4823 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4824 } 4825 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4826 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 4827 mPendingKeyMetaState, mCurrentDeviceId, 4828 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 4829 } 4830 4831 private void sendKeyUp(long time) { 4832 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4833 if (LOCAL_DEBUG) { 4834 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 4835 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4836 } 4837 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4838 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 4839 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 4840 mCurrentSource)); 4841 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4842 } 4843 } 4844 4845 private boolean startFling(long time, float vx, float vy) { 4846 if (LOCAL_DEBUG) { 4847 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 4848 + ", min=" + mConfigMinFlingVelocity); 4849 } 4850 4851 // Flings must be oriented in the same direction as the preceding movements. 4852 switch (mPendingKeyCode) { 4853 case KeyEvent.KEYCODE_DPAD_LEFT: 4854 if (-vx >= mConfigMinFlingVelocity 4855 && Math.abs(vy) < mConfigMinFlingVelocity) { 4856 mFlingVelocity = -vx; 4857 break; 4858 } 4859 return false; 4860 4861 case KeyEvent.KEYCODE_DPAD_RIGHT: 4862 if (vx >= mConfigMinFlingVelocity 4863 && Math.abs(vy) < mConfigMinFlingVelocity) { 4864 mFlingVelocity = vx; 4865 break; 4866 } 4867 return false; 4868 4869 case KeyEvent.KEYCODE_DPAD_UP: 4870 if (-vy >= mConfigMinFlingVelocity 4871 && Math.abs(vx) < mConfigMinFlingVelocity) { 4872 mFlingVelocity = -vy; 4873 break; 4874 } 4875 return false; 4876 4877 case KeyEvent.KEYCODE_DPAD_DOWN: 4878 if (vy >= mConfigMinFlingVelocity 4879 && Math.abs(vx) < mConfigMinFlingVelocity) { 4880 mFlingVelocity = vy; 4881 break; 4882 } 4883 return false; 4884 } 4885 4886 // Post the first fling event. 4887 mFlinging = postFling(time); 4888 return mFlinging; 4889 } 4890 4891 private boolean postFling(long time) { 4892 // The idea here is to estimate the time when the pointer would have 4893 // traveled one tick distance unit given the current fling velocity. 4894 // This effect creates continuity of motion. 4895 if (mFlingVelocity >= mConfigMinFlingVelocity) { 4896 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 4897 postAtTime(mFlingRunnable, time + delay); 4898 if (LOCAL_DEBUG) { 4899 Log.d(LOCAL_TAG, "Posted fling: velocity=" 4900 + mFlingVelocity + ", delay=" + delay 4901 + ", keyCode=" + mPendingKeyCode); 4902 } 4903 return true; 4904 } 4905 return false; 4906 } 4907 4908 private void cancelFling() { 4909 if (mFlinging) { 4910 removeCallbacks(mFlingRunnable); 4911 mFlinging = false; 4912 } 4913 } 4914 4915 private final Runnable mFlingRunnable = new Runnable() { 4916 @Override 4917 public void run() { 4918 final long time = SystemClock.uptimeMillis(); 4919 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 4920 mFlingVelocity *= FLING_TICK_DECAY; 4921 if (!postFling(time)) { 4922 mFlinging = false; 4923 finishKeys(time); 4924 } 4925 } 4926 }; 4927 } 4928 4929 final class SyntheticKeyboardHandler { 4930 public void process(KeyEvent event) { 4931 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) { 4932 return; 4933 } 4934 4935 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4936 final int keyCode = event.getKeyCode(); 4937 final int metaState = event.getMetaState(); 4938 4939 // Check for fallback actions specified by the key character map. 4940 KeyCharacterMap.FallbackAction fallbackAction = 4941 kcm.getFallbackAction(keyCode, metaState); 4942 if (fallbackAction != null) { 4943 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4944 KeyEvent fallbackEvent = KeyEvent.obtain( 4945 event.getDownTime(), event.getEventTime(), 4946 event.getAction(), fallbackAction.keyCode, 4947 event.getRepeatCount(), fallbackAction.metaState, 4948 event.getDeviceId(), event.getScanCode(), 4949 flags, event.getSource(), null); 4950 fallbackAction.recycle(); 4951 enqueueInputEvent(fallbackEvent); 4952 } 4953 } 4954 } 4955 4956 /** 4957 * Returns true if the key is used for keyboard navigation. 4958 * @param keyEvent The key event. 4959 * @return True if the key is used for keyboard navigation. 4960 */ 4961 private static boolean isNavigationKey(KeyEvent keyEvent) { 4962 switch (keyEvent.getKeyCode()) { 4963 case KeyEvent.KEYCODE_DPAD_LEFT: 4964 case KeyEvent.KEYCODE_DPAD_RIGHT: 4965 case KeyEvent.KEYCODE_DPAD_UP: 4966 case KeyEvent.KEYCODE_DPAD_DOWN: 4967 case KeyEvent.KEYCODE_DPAD_CENTER: 4968 case KeyEvent.KEYCODE_PAGE_UP: 4969 case KeyEvent.KEYCODE_PAGE_DOWN: 4970 case KeyEvent.KEYCODE_MOVE_HOME: 4971 case KeyEvent.KEYCODE_MOVE_END: 4972 case KeyEvent.KEYCODE_TAB: 4973 case KeyEvent.KEYCODE_SPACE: 4974 case KeyEvent.KEYCODE_ENTER: 4975 return true; 4976 } 4977 return false; 4978 } 4979 4980 /** 4981 * Returns true if the key is used for typing. 4982 * @param keyEvent The key event. 4983 * @return True if the key is used for typing. 4984 */ 4985 private static boolean isTypingKey(KeyEvent keyEvent) { 4986 return keyEvent.getUnicodeChar() > 0; 4987 } 4988 4989 /** 4990 * See if the key event means we should leave touch mode (and leave touch mode if so). 4991 * @param event The key event. 4992 * @return Whether this key event should be consumed (meaning the act of 4993 * leaving touch mode alone is considered the event). 4994 */ 4995 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 4996 // Only relevant in touch mode. 4997 if (!mAttachInfo.mInTouchMode) { 4998 return false; 4999 } 5000 5001 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 5002 final int action = event.getAction(); 5003 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 5004 return false; 5005 } 5006 5007 // Don't leave touch mode if the IME told us not to. 5008 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 5009 return false; 5010 } 5011 5012 // If the key can be used for keyboard navigation then leave touch mode 5013 // and select a focused view if needed (in ensureTouchMode). 5014 // When a new focused view is selected, we consume the navigation key because 5015 // navigation doesn't make much sense unless a view already has focus so 5016 // the key's purpose is to set focus. 5017 if (isNavigationKey(event)) { 5018 return ensureTouchMode(false); 5019 } 5020 5021 // If the key can be used for typing then leave touch mode 5022 // and select a focused view if needed (in ensureTouchMode). 5023 // Always allow the view to process the typing key. 5024 if (isTypingKey(event)) { 5025 ensureTouchMode(false); 5026 return false; 5027 } 5028 5029 return false; 5030 } 5031 5032 /* drag/drop */ 5033 void setLocalDragState(Object obj) { 5034 mLocalDragState = obj; 5035 } 5036 5037 private void handleDragEvent(DragEvent event) { 5038 // From the root, only drag start/end/location are dispatched. entered/exited 5039 // are determined and dispatched by the viewgroup hierarchy, who then report 5040 // that back here for ultimate reporting back to the framework. 5041 if (mView != null && mAdded) { 5042 final int what = event.mAction; 5043 5044 if (what == DragEvent.ACTION_DRAG_EXITED) { 5045 // A direct EXITED event means that the window manager knows we've just crossed 5046 // a window boundary, so the current drag target within this one must have 5047 // just been exited. Send it the usual notifications and then we're done 5048 // for now. 5049 mView.dispatchDragEvent(event); 5050 } else { 5051 // Cache the drag description when the operation starts, then fill it in 5052 // on subsequent calls as a convenience 5053 if (what == DragEvent.ACTION_DRAG_STARTED) { 5054 mCurrentDragView = null; // Start the current-recipient tracking 5055 mDragDescription = event.mClipDescription; 5056 } else { 5057 event.mClipDescription = mDragDescription; 5058 } 5059 5060 // For events with a [screen] location, translate into window coordinates 5061 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 5062 mDragPoint.set(event.mX, event.mY); 5063 if (mTranslator != null) { 5064 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 5065 } 5066 5067 if (mCurScrollY != 0) { 5068 mDragPoint.offset(0, mCurScrollY); 5069 } 5070 5071 event.mX = mDragPoint.x; 5072 event.mY = mDragPoint.y; 5073 } 5074 5075 // Remember who the current drag target is pre-dispatch 5076 final View prevDragView = mCurrentDragView; 5077 5078 // Now dispatch the drag/drop event 5079 boolean result = mView.dispatchDragEvent(event); 5080 5081 // If we changed apparent drag target, tell the OS about it 5082 if (prevDragView != mCurrentDragView) { 5083 try { 5084 if (prevDragView != null) { 5085 mWindowSession.dragRecipientExited(mWindow); 5086 } 5087 if (mCurrentDragView != null) { 5088 mWindowSession.dragRecipientEntered(mWindow); 5089 } 5090 } catch (RemoteException e) { 5091 Slog.e(TAG, "Unable to note drag target change"); 5092 } 5093 } 5094 5095 // Report the drop result when we're done 5096 if (what == DragEvent.ACTION_DROP) { 5097 mDragDescription = null; 5098 try { 5099 Log.i(TAG, "Reporting drop result: " + result); 5100 mWindowSession.reportDropResult(mWindow, result); 5101 } catch (RemoteException e) { 5102 Log.e(TAG, "Unable to report drop result"); 5103 } 5104 } 5105 5106 // When the drag operation ends, release any local state object 5107 // that may have been in use 5108 if (what == DragEvent.ACTION_DRAG_ENDED) { 5109 setLocalDragState(null); 5110 } 5111 } 5112 } 5113 event.recycle(); 5114 } 5115 5116 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 5117 if (mSeq != args.seq) { 5118 // The sequence has changed, so we need to update our value and make 5119 // sure to do a traversal afterward so the window manager is given our 5120 // most recent data. 5121 mSeq = args.seq; 5122 mAttachInfo.mForceReportNewAttributes = true; 5123 scheduleTraversals(); 5124 } 5125 if (mView == null) return; 5126 if (args.localChanges != 0) { 5127 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 5128 } 5129 5130 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 5131 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 5132 mAttachInfo.mGlobalSystemUiVisibility = visibility; 5133 mView.dispatchSystemUiVisibilityChanged(visibility); 5134 } 5135 } 5136 5137 public void handleDispatchDoneAnimating() { 5138 if (mWindowsAnimating) { 5139 mWindowsAnimating = false; 5140 if (!mDirty.isEmpty() || mIsAnimating || mFullRedrawNeeded) { 5141 scheduleTraversals(); 5142 } 5143 } 5144 } 5145 5146 public void handleDispatchWindowShown() { 5147 mAttachInfo.mTreeObserver.dispatchOnWindowShown(); 5148 } 5149 5150 public void getLastTouchPoint(Point outLocation) { 5151 outLocation.x = (int) mLastTouchPoint.x; 5152 outLocation.y = (int) mLastTouchPoint.y; 5153 } 5154 5155 public void setDragFocus(View newDragTarget) { 5156 if (mCurrentDragView != newDragTarget) { 5157 mCurrentDragView = newDragTarget; 5158 } 5159 } 5160 5161 private AudioManager getAudioManager() { 5162 if (mView == null) { 5163 throw new IllegalStateException("getAudioManager called when there is no mView"); 5164 } 5165 if (mAudioManager == null) { 5166 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 5167 } 5168 return mAudioManager; 5169 } 5170 5171 public AccessibilityInteractionController getAccessibilityInteractionController() { 5172 if (mView == null) { 5173 throw new IllegalStateException("getAccessibilityInteractionController" 5174 + " called when there is no mView"); 5175 } 5176 if (mAccessibilityInteractionController == null) { 5177 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 5178 } 5179 return mAccessibilityInteractionController; 5180 } 5181 5182 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 5183 boolean insetsPending) throws RemoteException { 5184 5185 float appScale = mAttachInfo.mApplicationScale; 5186 boolean restore = false; 5187 if (params != null && mTranslator != null) { 5188 restore = true; 5189 params.backup(); 5190 mTranslator.translateWindowLayout(params); 5191 } 5192 if (params != null) { 5193 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 5194 } 5195 mPendingConfiguration.seq = 0; 5196 //Log.d(TAG, ">>>>>> CALLING relayout"); 5197 if (params != null && mOrigWindowType != params.type) { 5198 // For compatibility with old apps, don't crash here. 5199 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 5200 Slog.w(TAG, "Window type can not be changed after " 5201 + "the window is added; ignoring change of " + mView); 5202 params.type = mOrigWindowType; 5203 } 5204 } 5205 int relayoutResult = mWindowSession.relayout( 5206 mWindow, mSeq, params, 5207 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 5208 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 5209 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 5210 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 5211 mPendingStableInsets, mPendingConfiguration, mSurface); 5212 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 5213 if (restore) { 5214 params.restore(); 5215 } 5216 5217 if (mTranslator != null) { 5218 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5219 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5220 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5221 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5222 mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets); 5223 } 5224 return relayoutResult; 5225 } 5226 5227 /** 5228 * {@inheritDoc} 5229 */ 5230 @Override 5231 public void playSoundEffect(int effectId) { 5232 checkThread(); 5233 5234 if (mMediaDisabled) { 5235 return; 5236 } 5237 5238 try { 5239 final AudioManager audioManager = getAudioManager(); 5240 5241 switch (effectId) { 5242 case SoundEffectConstants.CLICK: 5243 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5244 return; 5245 case SoundEffectConstants.NAVIGATION_DOWN: 5246 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5247 return; 5248 case SoundEffectConstants.NAVIGATION_LEFT: 5249 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5250 return; 5251 case SoundEffectConstants.NAVIGATION_RIGHT: 5252 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5253 return; 5254 case SoundEffectConstants.NAVIGATION_UP: 5255 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5256 return; 5257 default: 5258 throw new IllegalArgumentException("unknown effect id " + effectId + 5259 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5260 } 5261 } catch (IllegalStateException e) { 5262 // Exception thrown by getAudioManager() when mView is null 5263 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5264 e.printStackTrace(); 5265 } 5266 } 5267 5268 /** 5269 * {@inheritDoc} 5270 */ 5271 @Override 5272 public boolean performHapticFeedback(int effectId, boolean always) { 5273 try { 5274 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5275 } catch (RemoteException e) { 5276 return false; 5277 } 5278 } 5279 5280 /** 5281 * {@inheritDoc} 5282 */ 5283 @Override 5284 public View focusSearch(View focused, int direction) { 5285 checkThread(); 5286 if (!(mView instanceof ViewGroup)) { 5287 return null; 5288 } 5289 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5290 } 5291 5292 public void debug() { 5293 mView.debug(); 5294 } 5295 5296 public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 5297 String innerPrefix = prefix + " "; 5298 writer.print(prefix); writer.println("ViewRoot:"); 5299 writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded); 5300 writer.print(" mRemoved="); writer.println(mRemoved); 5301 writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled="); 5302 writer.println(mConsumeBatchedInputScheduled); 5303 writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled="); 5304 writer.println(mConsumeBatchedInputImmediatelyScheduled); 5305 writer.print(innerPrefix); writer.print("mPendingInputEventCount="); 5306 writer.println(mPendingInputEventCount); 5307 writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled="); 5308 writer.println(mProcessInputEventsScheduled); 5309 writer.print(innerPrefix); writer.print("mTraversalScheduled="); 5310 writer.print(mTraversalScheduled); 5311 if (mTraversalScheduled) { 5312 writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")"); 5313 } else { 5314 writer.println(); 5315 } 5316 mFirstInputStage.dump(innerPrefix, writer); 5317 5318 mChoreographer.dump(prefix, writer); 5319 5320 writer.print(prefix); writer.println("View Hierarchy:"); 5321 dumpViewHierarchy(innerPrefix, writer, mView); 5322 } 5323 5324 private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) { 5325 writer.print(prefix); 5326 if (view == null) { 5327 writer.println("null"); 5328 return; 5329 } 5330 writer.println(view.toString()); 5331 if (!(view instanceof ViewGroup)) { 5332 return; 5333 } 5334 ViewGroup grp = (ViewGroup)view; 5335 final int N = grp.getChildCount(); 5336 if (N <= 0) { 5337 return; 5338 } 5339 prefix = prefix + " "; 5340 for (int i=0; i<N; i++) { 5341 dumpViewHierarchy(prefix, writer, grp.getChildAt(i)); 5342 } 5343 } 5344 5345 public void dumpGfxInfo(int[] info) { 5346 info[0] = info[1] = 0; 5347 if (mView != null) { 5348 getGfxInfo(mView, info); 5349 } 5350 } 5351 5352 private static void getGfxInfo(View view, int[] info) { 5353 RenderNode renderNode = view.mRenderNode; 5354 info[0]++; 5355 if (renderNode != null) { 5356 info[1] += renderNode.getDebugSize(); 5357 } 5358 5359 if (view instanceof ViewGroup) { 5360 ViewGroup group = (ViewGroup) view; 5361 5362 int count = group.getChildCount(); 5363 for (int i = 0; i < count; i++) { 5364 getGfxInfo(group.getChildAt(i), info); 5365 } 5366 } 5367 } 5368 5369 /** 5370 * @param immediate True, do now if not in traversal. False, put on queue and do later. 5371 * @return True, request has been queued. False, request has been completed. 5372 */ 5373 boolean die(boolean immediate) { 5374 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5375 // done by dispatchDetachedFromWindow will cause havoc on return. 5376 if (immediate && !mIsInTraversal) { 5377 doDie(); 5378 return false; 5379 } 5380 5381 if (!mIsDrawing) { 5382 destroyHardwareRenderer(); 5383 } else { 5384 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 5385 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5386 } 5387 mHandler.sendEmptyMessage(MSG_DIE); 5388 return true; 5389 } 5390 5391 void doDie() { 5392 checkThread(); 5393 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 5394 synchronized (this) { 5395 if (mRemoved) { 5396 return; 5397 } 5398 mRemoved = true; 5399 if (mAdded) { 5400 dispatchDetachedFromWindow(); 5401 } 5402 5403 if (mAdded && !mFirst) { 5404 destroyHardwareRenderer(); 5405 5406 if (mView != null) { 5407 int viewVisibility = mView.getVisibility(); 5408 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5409 if (mWindowAttributesChanged || viewVisibilityChanged) { 5410 // If layout params have been changed, first give them 5411 // to the window manager to make sure it has the correct 5412 // animation info. 5413 try { 5414 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5415 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5416 mWindowSession.finishDrawing(mWindow); 5417 } 5418 } catch (RemoteException e) { 5419 } 5420 } 5421 5422 mSurface.release(); 5423 } 5424 } 5425 5426 mAdded = false; 5427 } 5428 WindowManagerGlobal.getInstance().doRemoveView(this); 5429 } 5430 5431 public void requestUpdateConfiguration(Configuration config) { 5432 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5433 mHandler.sendMessage(msg); 5434 } 5435 5436 public void loadSystemProperties() { 5437 mHandler.post(new Runnable() { 5438 @Override 5439 public void run() { 5440 // Profiling 5441 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5442 profileRendering(mAttachInfo.mHasWindowFocus); 5443 5444 // Media (used by sound effects) 5445 mMediaDisabled = SystemProperties.getBoolean(PROPERTY_MEDIA_DISABLED, false); 5446 5447 // Hardware rendering 5448 if (mAttachInfo.mHardwareRenderer != null) { 5449 if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) { 5450 invalidate(); 5451 } 5452 } 5453 5454 // Layout debugging 5455 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5456 if (layout != mAttachInfo.mDebugLayout) { 5457 mAttachInfo.mDebugLayout = layout; 5458 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5459 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5460 } 5461 } 5462 5463 // detect emulator 5464 mIsEmulator = Build.HARDWARE.contains("goldfish"); 5465 mIsCircularEmulator = 5466 SystemProperties.getBoolean(PROPERTY_EMULATOR_CIRCULAR, false); 5467 } 5468 }); 5469 } 5470 5471 private void destroyHardwareRenderer() { 5472 HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 5473 5474 if (hardwareRenderer != null) { 5475 if (mView != null) { 5476 hardwareRenderer.destroyHardwareResources(mView); 5477 } 5478 hardwareRenderer.destroy(); 5479 hardwareRenderer.setRequested(false); 5480 5481 mAttachInfo.mHardwareRenderer = null; 5482 mAttachInfo.mHardwareAccelerated = false; 5483 } 5484 } 5485 5486 public void dispatchFinishInputConnection(InputConnection connection) { 5487 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5488 mHandler.sendMessage(msg); 5489 } 5490 5491 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5492 Rect visibleInsets, Rect stableInsets, boolean reportDraw, Configuration newConfig) { 5493 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5494 + " contentInsets=" + contentInsets.toShortString() 5495 + " visibleInsets=" + visibleInsets.toShortString() 5496 + " reportDraw=" + reportDraw); 5497 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5498 if (mTranslator != null) { 5499 mTranslator.translateRectInScreenToAppWindow(frame); 5500 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5501 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5502 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5503 } 5504 SomeArgs args = SomeArgs.obtain(); 5505 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5506 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5507 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5508 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5509 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5510 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5511 args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets; 5512 msg.obj = args; 5513 mHandler.sendMessage(msg); 5514 } 5515 5516 public void dispatchMoved(int newX, int newY) { 5517 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5518 if (mTranslator != null) { 5519 PointF point = new PointF(newX, newY); 5520 mTranslator.translatePointInScreenToAppWindow(point); 5521 newX = (int) (point.x + 0.5); 5522 newY = (int) (point.y + 0.5); 5523 } 5524 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5525 mHandler.sendMessage(msg); 5526 } 5527 5528 /** 5529 * Represents a pending input event that is waiting in a queue. 5530 * 5531 * Input events are processed in serial order by the timestamp specified by 5532 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5533 * one input event to the application at a time and waits for the application 5534 * to finish handling it before delivering the next one. 5535 * 5536 * However, because the application or IME can synthesize and inject multiple 5537 * key events at a time without going through the input dispatcher, we end up 5538 * needing a queue on the application's side. 5539 */ 5540 private static final class QueuedInputEvent { 5541 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5542 public static final int FLAG_DEFERRED = 1 << 1; 5543 public static final int FLAG_FINISHED = 1 << 2; 5544 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5545 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5546 public static final int FLAG_UNHANDLED = 1 << 5; 5547 5548 public QueuedInputEvent mNext; 5549 5550 public InputEvent mEvent; 5551 public InputEventReceiver mReceiver; 5552 public int mFlags; 5553 5554 public boolean shouldSkipIme() { 5555 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5556 return true; 5557 } 5558 return mEvent instanceof MotionEvent 5559 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5560 } 5561 5562 public boolean shouldSendToSynthesizer() { 5563 if ((mFlags & FLAG_UNHANDLED) != 0) { 5564 return true; 5565 } 5566 5567 return false; 5568 } 5569 5570 @Override 5571 public String toString() { 5572 StringBuilder sb = new StringBuilder("QueuedInputEvent{flags="); 5573 boolean hasPrevious = false; 5574 hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb); 5575 hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb); 5576 hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb); 5577 hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb); 5578 hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb); 5579 hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb); 5580 if (!hasPrevious) { 5581 sb.append("0"); 5582 } 5583 sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false")); 5584 sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false")); 5585 sb.append(", mEvent=" + mEvent + "}"); 5586 return sb.toString(); 5587 } 5588 5589 private boolean flagToString(String name, int flag, 5590 boolean hasPrevious, StringBuilder sb) { 5591 if ((mFlags & flag) != 0) { 5592 if (hasPrevious) { 5593 sb.append("|"); 5594 } 5595 sb.append(name); 5596 return true; 5597 } 5598 return hasPrevious; 5599 } 5600 } 5601 5602 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5603 InputEventReceiver receiver, int flags) { 5604 QueuedInputEvent q = mQueuedInputEventPool; 5605 if (q != null) { 5606 mQueuedInputEventPoolSize -= 1; 5607 mQueuedInputEventPool = q.mNext; 5608 q.mNext = null; 5609 } else { 5610 q = new QueuedInputEvent(); 5611 } 5612 5613 q.mEvent = event; 5614 q.mReceiver = receiver; 5615 q.mFlags = flags; 5616 return q; 5617 } 5618 5619 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5620 q.mEvent = null; 5621 q.mReceiver = null; 5622 5623 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5624 mQueuedInputEventPoolSize += 1; 5625 q.mNext = mQueuedInputEventPool; 5626 mQueuedInputEventPool = q; 5627 } 5628 } 5629 5630 void enqueueInputEvent(InputEvent event) { 5631 enqueueInputEvent(event, null, 0, false); 5632 } 5633 5634 void enqueueInputEvent(InputEvent event, 5635 InputEventReceiver receiver, int flags, boolean processImmediately) { 5636 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5637 5638 // Always enqueue the input event in order, regardless of its time stamp. 5639 // We do this because the application or the IME may inject key events 5640 // in response to touch events and we want to ensure that the injected keys 5641 // are processed in the order they were received and we cannot trust that 5642 // the time stamp of injected events are monotonic. 5643 QueuedInputEvent last = mPendingInputEventTail; 5644 if (last == null) { 5645 mPendingInputEventHead = q; 5646 mPendingInputEventTail = q; 5647 } else { 5648 last.mNext = q; 5649 mPendingInputEventTail = q; 5650 } 5651 mPendingInputEventCount += 1; 5652 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5653 mPendingInputEventCount); 5654 5655 if (processImmediately) { 5656 doProcessInputEvents(); 5657 } else { 5658 scheduleProcessInputEvents(); 5659 } 5660 } 5661 5662 private void scheduleProcessInputEvents() { 5663 if (!mProcessInputEventsScheduled) { 5664 mProcessInputEventsScheduled = true; 5665 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5666 msg.setAsynchronous(true); 5667 mHandler.sendMessage(msg); 5668 } 5669 } 5670 5671 void doProcessInputEvents() { 5672 // Deliver all pending input events in the queue. 5673 while (mPendingInputEventHead != null) { 5674 QueuedInputEvent q = mPendingInputEventHead; 5675 mPendingInputEventHead = q.mNext; 5676 if (mPendingInputEventHead == null) { 5677 mPendingInputEventTail = null; 5678 } 5679 q.mNext = null; 5680 5681 mPendingInputEventCount -= 1; 5682 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5683 mPendingInputEventCount); 5684 5685 deliverInputEvent(q); 5686 } 5687 5688 // We are done processing all input events that we can process right now 5689 // so we can clear the pending flag immediately. 5690 if (mProcessInputEventsScheduled) { 5691 mProcessInputEventsScheduled = false; 5692 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5693 } 5694 } 5695 5696 private void deliverInputEvent(QueuedInputEvent q) { 5697 Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5698 q.mEvent.getSequenceNumber()); 5699 if (mInputEventConsistencyVerifier != null) { 5700 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5701 } 5702 5703 InputStage stage; 5704 if (q.shouldSendToSynthesizer()) { 5705 stage = mSyntheticInputStage; 5706 } else { 5707 stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5708 } 5709 5710 if (stage != null) { 5711 stage.deliver(q); 5712 } else { 5713 finishInputEvent(q); 5714 } 5715 } 5716 5717 private void finishInputEvent(QueuedInputEvent q) { 5718 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5719 q.mEvent.getSequenceNumber()); 5720 5721 if (q.mReceiver != null) { 5722 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5723 q.mReceiver.finishInputEvent(q.mEvent, handled); 5724 } else { 5725 q.mEvent.recycleIfNeededAfterDispatch(); 5726 } 5727 5728 recycleQueuedInputEvent(q); 5729 } 5730 5731 static boolean isTerminalInputEvent(InputEvent event) { 5732 if (event instanceof KeyEvent) { 5733 final KeyEvent keyEvent = (KeyEvent)event; 5734 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5735 } else { 5736 final MotionEvent motionEvent = (MotionEvent)event; 5737 final int action = motionEvent.getAction(); 5738 return action == MotionEvent.ACTION_UP 5739 || action == MotionEvent.ACTION_CANCEL 5740 || action == MotionEvent.ACTION_HOVER_EXIT; 5741 } 5742 } 5743 5744 void scheduleConsumeBatchedInput() { 5745 if (!mConsumeBatchedInputScheduled) { 5746 mConsumeBatchedInputScheduled = true; 5747 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5748 mConsumedBatchedInputRunnable, null); 5749 } 5750 } 5751 5752 void unscheduleConsumeBatchedInput() { 5753 if (mConsumeBatchedInputScheduled) { 5754 mConsumeBatchedInputScheduled = false; 5755 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5756 mConsumedBatchedInputRunnable, null); 5757 } 5758 } 5759 5760 void scheduleConsumeBatchedInputImmediately() { 5761 if (!mConsumeBatchedInputImmediatelyScheduled) { 5762 unscheduleConsumeBatchedInput(); 5763 mConsumeBatchedInputImmediatelyScheduled = true; 5764 mHandler.post(mConsumeBatchedInputImmediatelyRunnable); 5765 } 5766 } 5767 5768 void doConsumeBatchedInput(long frameTimeNanos) { 5769 if (mConsumeBatchedInputScheduled) { 5770 mConsumeBatchedInputScheduled = false; 5771 if (mInputEventReceiver != null) { 5772 if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos) 5773 && frameTimeNanos != -1) { 5774 // If we consumed a batch here, we want to go ahead and schedule the 5775 // consumption of batched input events on the next frame. Otherwise, we would 5776 // wait until we have more input events pending and might get starved by other 5777 // things occurring in the process. If the frame time is -1, however, then 5778 // we're in a non-batching mode, so there's no need to schedule this. 5779 scheduleConsumeBatchedInput(); 5780 } 5781 } 5782 doProcessInputEvents(); 5783 } 5784 } 5785 5786 final class TraversalRunnable implements Runnable { 5787 @Override 5788 public void run() { 5789 doTraversal(); 5790 } 5791 } 5792 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 5793 5794 final class WindowInputEventReceiver extends InputEventReceiver { 5795 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 5796 super(inputChannel, looper); 5797 } 5798 5799 @Override 5800 public void onInputEvent(InputEvent event) { 5801 enqueueInputEvent(event, this, 0, true); 5802 } 5803 5804 @Override 5805 public void onBatchedInputEventPending() { 5806 if (mUnbufferedInputDispatch) { 5807 super.onBatchedInputEventPending(); 5808 } else { 5809 scheduleConsumeBatchedInput(); 5810 } 5811 } 5812 5813 @Override 5814 public void dispose() { 5815 unscheduleConsumeBatchedInput(); 5816 super.dispose(); 5817 } 5818 } 5819 WindowInputEventReceiver mInputEventReceiver; 5820 5821 final class ConsumeBatchedInputRunnable implements Runnable { 5822 @Override 5823 public void run() { 5824 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 5825 } 5826 } 5827 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 5828 new ConsumeBatchedInputRunnable(); 5829 boolean mConsumeBatchedInputScheduled; 5830 5831 final class ConsumeBatchedInputImmediatelyRunnable implements Runnable { 5832 @Override 5833 public void run() { 5834 doConsumeBatchedInput(-1); 5835 } 5836 } 5837 final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable = 5838 new ConsumeBatchedInputImmediatelyRunnable(); 5839 boolean mConsumeBatchedInputImmediatelyScheduled; 5840 5841 final class InvalidateOnAnimationRunnable implements Runnable { 5842 private boolean mPosted; 5843 private final ArrayList<View> mViews = new ArrayList<View>(); 5844 private final ArrayList<AttachInfo.InvalidateInfo> mViewRects = 5845 new ArrayList<AttachInfo.InvalidateInfo>(); 5846 private View[] mTempViews; 5847 private AttachInfo.InvalidateInfo[] mTempViewRects; 5848 5849 public void addView(View view) { 5850 synchronized (this) { 5851 mViews.add(view); 5852 postIfNeededLocked(); 5853 } 5854 } 5855 5856 public void addViewRect(AttachInfo.InvalidateInfo info) { 5857 synchronized (this) { 5858 mViewRects.add(info); 5859 postIfNeededLocked(); 5860 } 5861 } 5862 5863 public void removeView(View view) { 5864 synchronized (this) { 5865 mViews.remove(view); 5866 5867 for (int i = mViewRects.size(); i-- > 0; ) { 5868 AttachInfo.InvalidateInfo info = mViewRects.get(i); 5869 if (info.target == view) { 5870 mViewRects.remove(i); 5871 info.recycle(); 5872 } 5873 } 5874 5875 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 5876 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 5877 mPosted = false; 5878 } 5879 } 5880 } 5881 5882 @Override 5883 public void run() { 5884 final int viewCount; 5885 final int viewRectCount; 5886 synchronized (this) { 5887 mPosted = false; 5888 5889 viewCount = mViews.size(); 5890 if (viewCount != 0) { 5891 mTempViews = mViews.toArray(mTempViews != null 5892 ? mTempViews : new View[viewCount]); 5893 mViews.clear(); 5894 } 5895 5896 viewRectCount = mViewRects.size(); 5897 if (viewRectCount != 0) { 5898 mTempViewRects = mViewRects.toArray(mTempViewRects != null 5899 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 5900 mViewRects.clear(); 5901 } 5902 } 5903 5904 for (int i = 0; i < viewCount; i++) { 5905 mTempViews[i].invalidate(); 5906 mTempViews[i] = null; 5907 } 5908 5909 for (int i = 0; i < viewRectCount; i++) { 5910 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 5911 info.target.invalidate(info.left, info.top, info.right, info.bottom); 5912 info.recycle(); 5913 } 5914 } 5915 5916 private void postIfNeededLocked() { 5917 if (!mPosted) { 5918 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 5919 mPosted = true; 5920 } 5921 } 5922 } 5923 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 5924 new InvalidateOnAnimationRunnable(); 5925 5926 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 5927 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 5928 mHandler.sendMessageDelayed(msg, delayMilliseconds); 5929 } 5930 5931 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 5932 long delayMilliseconds) { 5933 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 5934 mHandler.sendMessageDelayed(msg, delayMilliseconds); 5935 } 5936 5937 public void dispatchInvalidateOnAnimation(View view) { 5938 mInvalidateOnAnimationRunnable.addView(view); 5939 } 5940 5941 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 5942 mInvalidateOnAnimationRunnable.addViewRect(info); 5943 } 5944 5945 public void cancelInvalidate(View view) { 5946 mHandler.removeMessages(MSG_INVALIDATE, view); 5947 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 5948 // them to the pool 5949 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 5950 mInvalidateOnAnimationRunnable.removeView(view); 5951 } 5952 5953 public void dispatchInputEvent(InputEvent event) { 5954 dispatchInputEvent(event, null); 5955 } 5956 5957 public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) { 5958 SomeArgs args = SomeArgs.obtain(); 5959 args.arg1 = event; 5960 args.arg2 = receiver; 5961 Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args); 5962 msg.setAsynchronous(true); 5963 mHandler.sendMessage(msg); 5964 } 5965 5966 public void synthesizeInputEvent(InputEvent event) { 5967 Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event); 5968 msg.setAsynchronous(true); 5969 mHandler.sendMessage(msg); 5970 } 5971 5972 public void dispatchKeyFromIme(KeyEvent event) { 5973 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 5974 msg.setAsynchronous(true); 5975 mHandler.sendMessage(msg); 5976 } 5977 5978 /** 5979 * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events. 5980 * 5981 * Note that it is the responsibility of the caller of this API to recycle the InputEvent it 5982 * passes in. 5983 */ 5984 public void dispatchUnhandledInputEvent(InputEvent event) { 5985 if (event instanceof MotionEvent) { 5986 event = MotionEvent.obtain((MotionEvent) event); 5987 } 5988 synthesizeInputEvent(event); 5989 } 5990 5991 public void dispatchAppVisibility(boolean visible) { 5992 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 5993 msg.arg1 = visible ? 1 : 0; 5994 mHandler.sendMessage(msg); 5995 } 5996 5997 public void dispatchGetNewSurface() { 5998 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 5999 mHandler.sendMessage(msg); 6000 } 6001 6002 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6003 Message msg = Message.obtain(); 6004 msg.what = MSG_WINDOW_FOCUS_CHANGED; 6005 msg.arg1 = hasFocus ? 1 : 0; 6006 msg.arg2 = inTouchMode ? 1 : 0; 6007 mHandler.sendMessage(msg); 6008 } 6009 6010 public void dispatchWindowShown() { 6011 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN); 6012 } 6013 6014 public void dispatchCloseSystemDialogs(String reason) { 6015 Message msg = Message.obtain(); 6016 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 6017 msg.obj = reason; 6018 mHandler.sendMessage(msg); 6019 } 6020 6021 public void dispatchDragEvent(DragEvent event) { 6022 final int what; 6023 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 6024 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 6025 mHandler.removeMessages(what); 6026 } else { 6027 what = MSG_DISPATCH_DRAG_EVENT; 6028 } 6029 Message msg = mHandler.obtainMessage(what, event); 6030 mHandler.sendMessage(msg); 6031 } 6032 6033 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6034 int localValue, int localChanges) { 6035 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 6036 args.seq = seq; 6037 args.globalVisibility = globalVisibility; 6038 args.localValue = localValue; 6039 args.localChanges = localChanges; 6040 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 6041 } 6042 6043 public void dispatchDoneAnimating() { 6044 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 6045 } 6046 6047 public void dispatchCheckFocus() { 6048 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 6049 // This will result in a call to checkFocus() below. 6050 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 6051 } 6052 } 6053 6054 /** 6055 * Post a callback to send a 6056 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6057 * This event is send at most once every 6058 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 6059 */ 6060 private void postSendWindowContentChangedCallback(View source, int changeType) { 6061 if (mSendWindowContentChangedAccessibilityEvent == null) { 6062 mSendWindowContentChangedAccessibilityEvent = 6063 new SendWindowContentChangedAccessibilityEvent(); 6064 } 6065 mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType); 6066 } 6067 6068 /** 6069 * Remove a posted callback to send a 6070 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6071 */ 6072 private void removeSendWindowContentChangedCallback() { 6073 if (mSendWindowContentChangedAccessibilityEvent != null) { 6074 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 6075 } 6076 } 6077 6078 @Override 6079 public boolean showContextMenuForChild(View originalView) { 6080 return false; 6081 } 6082 6083 @Override 6084 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 6085 return null; 6086 } 6087 6088 @Override 6089 public void createContextMenu(ContextMenu menu) { 6090 } 6091 6092 @Override 6093 public void childDrawableStateChanged(View child) { 6094 } 6095 6096 @Override 6097 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 6098 if (mView == null) { 6099 return false; 6100 } 6101 // Intercept accessibility focus events fired by virtual nodes to keep 6102 // track of accessibility focus position in such nodes. 6103 final int eventType = event.getEventType(); 6104 switch (eventType) { 6105 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 6106 final long sourceNodeId = event.getSourceNodeId(); 6107 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6108 sourceNodeId); 6109 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6110 if (source != null) { 6111 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6112 if (provider != null) { 6113 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 6114 sourceNodeId); 6115 final AccessibilityNodeInfo node; 6116 if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6117 node = provider.createAccessibilityNodeInfo( 6118 AccessibilityNodeProvider.HOST_VIEW_ID); 6119 } else { 6120 node = provider.createAccessibilityNodeInfo(virtualNodeId); 6121 } 6122 setAccessibilityFocus(source, node); 6123 } 6124 } 6125 } break; 6126 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 6127 final long sourceNodeId = event.getSourceNodeId(); 6128 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6129 sourceNodeId); 6130 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6131 if (source != null) { 6132 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6133 if (provider != null) { 6134 setAccessibilityFocus(null, null); 6135 } 6136 } 6137 } break; 6138 6139 6140 case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: { 6141 if (mAccessibilityFocusedHost != null && mAccessibilityFocusedVirtualView != null) { 6142 // We care only for changes rooted in the focused host. 6143 final long eventSourceId = event.getSourceNodeId(); 6144 final int hostViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6145 eventSourceId); 6146 if (hostViewId != mAccessibilityFocusedHost.getAccessibilityViewId()) { 6147 break; 6148 } 6149 6150 // We only care about changes that may change the virtual focused view bounds. 6151 final int changes = event.getContentChangeTypes(); 6152 if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) != 0 6153 || changes == AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) { 6154 AccessibilityNodeProvider provider = mAccessibilityFocusedHost 6155 .getAccessibilityNodeProvider(); 6156 if (provider != null) { 6157 final int virtualChildId = AccessibilityNodeInfo.getVirtualDescendantId( 6158 mAccessibilityFocusedVirtualView.getSourceNodeId()); 6159 if (virtualChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6160 mAccessibilityFocusedVirtualView = provider 6161 .createAccessibilityNodeInfo( 6162 AccessibilityNodeProvider.HOST_VIEW_ID); 6163 } else { 6164 mAccessibilityFocusedVirtualView = provider 6165 .createAccessibilityNodeInfo(virtualChildId); 6166 } 6167 } 6168 } 6169 } 6170 } break; 6171 } 6172 mAccessibilityManager.sendAccessibilityEvent(event); 6173 return true; 6174 } 6175 6176 @Override 6177 public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) { 6178 postSendWindowContentChangedCallback(source, changeType); 6179 } 6180 6181 @Override 6182 public boolean canResolveLayoutDirection() { 6183 return true; 6184 } 6185 6186 @Override 6187 public boolean isLayoutDirectionResolved() { 6188 return true; 6189 } 6190 6191 @Override 6192 public int getLayoutDirection() { 6193 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 6194 } 6195 6196 @Override 6197 public boolean canResolveTextDirection() { 6198 return true; 6199 } 6200 6201 @Override 6202 public boolean isTextDirectionResolved() { 6203 return true; 6204 } 6205 6206 @Override 6207 public int getTextDirection() { 6208 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 6209 } 6210 6211 @Override 6212 public boolean canResolveTextAlignment() { 6213 return true; 6214 } 6215 6216 @Override 6217 public boolean isTextAlignmentResolved() { 6218 return true; 6219 } 6220 6221 @Override 6222 public int getTextAlignment() { 6223 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 6224 } 6225 6226 private View getCommonPredecessor(View first, View second) { 6227 if (mTempHashSet == null) { 6228 mTempHashSet = new HashSet<View>(); 6229 } 6230 HashSet<View> seen = mTempHashSet; 6231 seen.clear(); 6232 View firstCurrent = first; 6233 while (firstCurrent != null) { 6234 seen.add(firstCurrent); 6235 ViewParent firstCurrentParent = firstCurrent.mParent; 6236 if (firstCurrentParent instanceof View) { 6237 firstCurrent = (View) firstCurrentParent; 6238 } else { 6239 firstCurrent = null; 6240 } 6241 } 6242 View secondCurrent = second; 6243 while (secondCurrent != null) { 6244 if (seen.contains(secondCurrent)) { 6245 seen.clear(); 6246 return secondCurrent; 6247 } 6248 ViewParent secondCurrentParent = secondCurrent.mParent; 6249 if (secondCurrentParent instanceof View) { 6250 secondCurrent = (View) secondCurrentParent; 6251 } else { 6252 secondCurrent = null; 6253 } 6254 } 6255 seen.clear(); 6256 return null; 6257 } 6258 6259 void checkThread() { 6260 if (mThread != Thread.currentThread()) { 6261 throw new CalledFromWrongThreadException( 6262 "Only the original thread that created a view hierarchy can touch its views."); 6263 } 6264 } 6265 6266 @Override 6267 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 6268 // ViewAncestor never intercepts touch event, so this can be a no-op 6269 } 6270 6271 @Override 6272 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 6273 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 6274 if (rectangle != null) { 6275 mTempRect.set(rectangle); 6276 mTempRect.offset(0, -mCurScrollY); 6277 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 6278 try { 6279 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect); 6280 } catch (RemoteException re) { 6281 /* ignore */ 6282 } 6283 } 6284 return scrolled; 6285 } 6286 6287 @Override 6288 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 6289 // Do nothing. 6290 } 6291 6292 @Override 6293 public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 6294 return false; 6295 } 6296 6297 @Override 6298 public void onStopNestedScroll(View target) { 6299 } 6300 6301 @Override 6302 public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) { 6303 } 6304 6305 @Override 6306 public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 6307 int dxUnconsumed, int dyUnconsumed) { 6308 } 6309 6310 @Override 6311 public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) { 6312 } 6313 6314 @Override 6315 public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 6316 return false; 6317 } 6318 6319 @Override 6320 public boolean onNestedPreFling(View target, float velocityX, float velocityY) { 6321 return false; 6322 } 6323 6324 void changeCanvasOpacity(boolean opaque) { 6325 Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque); 6326 if (mAttachInfo.mHardwareRenderer != null) { 6327 mAttachInfo.mHardwareRenderer.setOpaque(opaque); 6328 } 6329 } 6330 6331 class TakenSurfaceHolder extends BaseSurfaceHolder { 6332 @Override 6333 public boolean onAllowLockCanvas() { 6334 return mDrawingAllowed; 6335 } 6336 6337 @Override 6338 public void onRelayoutContainer() { 6339 // Not currently interesting -- from changing between fixed and layout size. 6340 } 6341 6342 @Override 6343 public void setFormat(int format) { 6344 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 6345 } 6346 6347 @Override 6348 public void setType(int type) { 6349 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 6350 } 6351 6352 @Override 6353 public void onUpdateSurface() { 6354 // We take care of format and type changes on our own. 6355 throw new IllegalStateException("Shouldn't be here"); 6356 } 6357 6358 @Override 6359 public boolean isCreating() { 6360 return mIsCreating; 6361 } 6362 6363 @Override 6364 public void setFixedSize(int width, int height) { 6365 throw new UnsupportedOperationException( 6366 "Currently only support sizing from layout"); 6367 } 6368 6369 @Override 6370 public void setKeepScreenOn(boolean screenOn) { 6371 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 6372 } 6373 } 6374 6375 static class W extends IWindow.Stub { 6376 private final WeakReference<ViewRootImpl> mViewAncestor; 6377 private final IWindowSession mWindowSession; 6378 6379 W(ViewRootImpl viewAncestor) { 6380 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 6381 mWindowSession = viewAncestor.mWindowSession; 6382 } 6383 6384 @Override 6385 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 6386 Rect visibleInsets, Rect stableInsets, boolean reportDraw, 6387 Configuration newConfig) { 6388 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6389 if (viewAncestor != null) { 6390 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 6391 visibleInsets, stableInsets, reportDraw, newConfig); 6392 } 6393 } 6394 6395 @Override 6396 public void moved(int newX, int newY) { 6397 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6398 if (viewAncestor != null) { 6399 viewAncestor.dispatchMoved(newX, newY); 6400 } 6401 } 6402 6403 @Override 6404 public void dispatchAppVisibility(boolean visible) { 6405 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6406 if (viewAncestor != null) { 6407 viewAncestor.dispatchAppVisibility(visible); 6408 } 6409 } 6410 6411 @Override 6412 public void dispatchGetNewSurface() { 6413 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6414 if (viewAncestor != null) { 6415 viewAncestor.dispatchGetNewSurface(); 6416 } 6417 } 6418 6419 @Override 6420 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6421 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6422 if (viewAncestor != null) { 6423 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 6424 } 6425 } 6426 6427 private static int checkCallingPermission(String permission) { 6428 try { 6429 return ActivityManagerNative.getDefault().checkPermission( 6430 permission, Binder.getCallingPid(), Binder.getCallingUid()); 6431 } catch (RemoteException e) { 6432 return PackageManager.PERMISSION_DENIED; 6433 } 6434 } 6435 6436 @Override 6437 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 6438 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6439 if (viewAncestor != null) { 6440 final View view = viewAncestor.mView; 6441 if (view != null) { 6442 if (checkCallingPermission(Manifest.permission.DUMP) != 6443 PackageManager.PERMISSION_GRANTED) { 6444 throw new SecurityException("Insufficient permissions to invoke" 6445 + " executeCommand() from pid=" + Binder.getCallingPid() 6446 + ", uid=" + Binder.getCallingUid()); 6447 } 6448 6449 OutputStream clientStream = null; 6450 try { 6451 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 6452 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 6453 } catch (IOException e) { 6454 e.printStackTrace(); 6455 } finally { 6456 if (clientStream != null) { 6457 try { 6458 clientStream.close(); 6459 } catch (IOException e) { 6460 e.printStackTrace(); 6461 } 6462 } 6463 } 6464 } 6465 } 6466 } 6467 6468 @Override 6469 public void closeSystemDialogs(String reason) { 6470 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6471 if (viewAncestor != null) { 6472 viewAncestor.dispatchCloseSystemDialogs(reason); 6473 } 6474 } 6475 6476 @Override 6477 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 6478 boolean sync) { 6479 if (sync) { 6480 try { 6481 mWindowSession.wallpaperOffsetsComplete(asBinder()); 6482 } catch (RemoteException e) { 6483 } 6484 } 6485 } 6486 6487 @Override 6488 public void dispatchWallpaperCommand(String action, int x, int y, 6489 int z, Bundle extras, boolean sync) { 6490 if (sync) { 6491 try { 6492 mWindowSession.wallpaperCommandComplete(asBinder(), null); 6493 } catch (RemoteException e) { 6494 } 6495 } 6496 } 6497 6498 /* Drag/drop */ 6499 @Override 6500 public void dispatchDragEvent(DragEvent event) { 6501 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6502 if (viewAncestor != null) { 6503 viewAncestor.dispatchDragEvent(event); 6504 } 6505 } 6506 6507 @Override 6508 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6509 int localValue, int localChanges) { 6510 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6511 if (viewAncestor != null) { 6512 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 6513 localValue, localChanges); 6514 } 6515 } 6516 6517 @Override 6518 public void doneAnimating() { 6519 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6520 if (viewAncestor != null) { 6521 viewAncestor.dispatchDoneAnimating(); 6522 } 6523 } 6524 6525 @Override 6526 public void dispatchWindowShown() { 6527 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6528 if (viewAncestor != null) { 6529 viewAncestor.dispatchWindowShown(); 6530 } 6531 } 6532 } 6533 6534 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 6535 public CalledFromWrongThreadException(String msg) { 6536 super(msg); 6537 } 6538 } 6539 6540 static RunQueue getRunQueue() { 6541 RunQueue rq = sRunQueues.get(); 6542 if (rq != null) { 6543 return rq; 6544 } 6545 rq = new RunQueue(); 6546 sRunQueues.set(rq); 6547 return rq; 6548 } 6549 6550 /** 6551 * The run queue is used to enqueue pending work from Views when no Handler is 6552 * attached. The work is executed during the next call to performTraversals on 6553 * the thread. 6554 * @hide 6555 */ 6556 static final class RunQueue { 6557 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 6558 6559 void post(Runnable action) { 6560 postDelayed(action, 0); 6561 } 6562 6563 void postDelayed(Runnable action, long delayMillis) { 6564 HandlerAction handlerAction = new HandlerAction(); 6565 handlerAction.action = action; 6566 handlerAction.delay = delayMillis; 6567 6568 synchronized (mActions) { 6569 mActions.add(handlerAction); 6570 } 6571 } 6572 6573 void removeCallbacks(Runnable action) { 6574 final HandlerAction handlerAction = new HandlerAction(); 6575 handlerAction.action = action; 6576 6577 synchronized (mActions) { 6578 final ArrayList<HandlerAction> actions = mActions; 6579 6580 while (actions.remove(handlerAction)) { 6581 // Keep going 6582 } 6583 } 6584 } 6585 6586 void executeActions(Handler handler) { 6587 synchronized (mActions) { 6588 final ArrayList<HandlerAction> actions = mActions; 6589 final int count = actions.size(); 6590 6591 for (int i = 0; i < count; i++) { 6592 final HandlerAction handlerAction = actions.get(i); 6593 handler.postDelayed(handlerAction.action, handlerAction.delay); 6594 } 6595 6596 actions.clear(); 6597 } 6598 } 6599 6600 private static class HandlerAction { 6601 Runnable action; 6602 long delay; 6603 6604 @Override 6605 public boolean equals(Object o) { 6606 if (this == o) return true; 6607 if (o == null || getClass() != o.getClass()) return false; 6608 6609 HandlerAction that = (HandlerAction) o; 6610 return !(action != null ? !action.equals(that.action) : that.action != null); 6611 6612 } 6613 6614 @Override 6615 public int hashCode() { 6616 int result = action != null ? action.hashCode() : 0; 6617 result = 31 * result + (int) (delay ^ (delay >>> 32)); 6618 return result; 6619 } 6620 } 6621 } 6622 6623 /** 6624 * Class for managing the accessibility interaction connection 6625 * based on the global accessibility state. 6626 */ 6627 final class AccessibilityInteractionConnectionManager 6628 implements AccessibilityStateChangeListener { 6629 @Override 6630 public void onAccessibilityStateChanged(boolean enabled) { 6631 if (enabled) { 6632 ensureConnection(); 6633 if (mAttachInfo.mHasWindowFocus) { 6634 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6635 View focusedView = mView.findFocus(); 6636 if (focusedView != null && focusedView != mView) { 6637 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6638 } 6639 } 6640 } else { 6641 ensureNoConnection(); 6642 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6643 } 6644 } 6645 6646 public void ensureConnection() { 6647 final boolean registered = 6648 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6649 if (!registered) { 6650 mAttachInfo.mAccessibilityWindowId = 6651 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6652 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6653 } 6654 } 6655 6656 public void ensureNoConnection() { 6657 final boolean registered = 6658 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6659 if (registered) { 6660 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6661 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6662 } 6663 } 6664 } 6665 6666 final class HighContrastTextManager implements HighTextContrastChangeListener { 6667 HighContrastTextManager() { 6668 mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled(); 6669 } 6670 @Override 6671 public void onHighTextContrastStateChanged(boolean enabled) { 6672 mAttachInfo.mHighContrastText = enabled; 6673 6674 // Destroy Displaylists so they can be recreated with high contrast recordings 6675 destroyHardwareResources(); 6676 6677 // Schedule redraw, which will rerecord + redraw all text 6678 invalidate(); 6679 } 6680 } 6681 6682 /** 6683 * This class is an interface this ViewAncestor provides to the 6684 * AccessibilityManagerService to the latter can interact with 6685 * the view hierarchy in this ViewAncestor. 6686 */ 6687 static final class AccessibilityInteractionConnection 6688 extends IAccessibilityInteractionConnection.Stub { 6689 private final WeakReference<ViewRootImpl> mViewRootImpl; 6690 6691 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6692 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6693 } 6694 6695 @Override 6696 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 6697 Region interactiveRegion, int interactionId, 6698 IAccessibilityInteractionConnectionCallback callback, int flags, 6699 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6700 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6701 if (viewRootImpl != null && viewRootImpl.mView != null) { 6702 viewRootImpl.getAccessibilityInteractionController() 6703 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 6704 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6705 interrogatingTid, spec); 6706 } else { 6707 // We cannot make the call and notify the caller so it does not wait. 6708 try { 6709 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6710 } catch (RemoteException re) { 6711 /* best effort - ignore */ 6712 } 6713 } 6714 } 6715 6716 @Override 6717 public void performAccessibilityAction(long accessibilityNodeId, int action, 6718 Bundle arguments, int interactionId, 6719 IAccessibilityInteractionConnectionCallback callback, int flags, 6720 int interrogatingPid, long interrogatingTid) { 6721 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6722 if (viewRootImpl != null && viewRootImpl.mView != null) { 6723 viewRootImpl.getAccessibilityInteractionController() 6724 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 6725 interactionId, callback, flags, interrogatingPid, interrogatingTid); 6726 } else { 6727 // We cannot make the call and notify the caller so it does not wait. 6728 try { 6729 callback.setPerformAccessibilityActionResult(false, interactionId); 6730 } catch (RemoteException re) { 6731 /* best effort - ignore */ 6732 } 6733 } 6734 } 6735 6736 @Override 6737 public void computeClickPointInScreen(long accessibilityNodeId, Region interactiveRegion, 6738 int interactionId, IAccessibilityInteractionConnectionCallback callback, 6739 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6740 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6741 if (viewRootImpl != null && viewRootImpl.mView != null) { 6742 viewRootImpl.getAccessibilityInteractionController() 6743 .computeClickPointInScreenClientThread(accessibilityNodeId, 6744 interactiveRegion, interactionId, callback, interrogatingPid, 6745 interrogatingTid, spec); 6746 } else { 6747 // We cannot make the call and notify the caller so it does not wait. 6748 try { 6749 callback.setComputeClickPointInScreenActionResult(null, interactionId); 6750 } catch (RemoteException re) { 6751 /* best effort - ignore */ 6752 } 6753 } 6754 } 6755 6756 @Override 6757 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 6758 String viewId, Region interactiveRegion, int interactionId, 6759 IAccessibilityInteractionConnectionCallback callback, int flags, 6760 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6761 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6762 if (viewRootImpl != null && viewRootImpl.mView != null) { 6763 viewRootImpl.getAccessibilityInteractionController() 6764 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 6765 viewId, interactiveRegion, interactionId, callback, flags, 6766 interrogatingPid, interrogatingTid, spec); 6767 } else { 6768 // We cannot make the call and notify the caller so it does not wait. 6769 try { 6770 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6771 } catch (RemoteException re) { 6772 /* best effort - ignore */ 6773 } 6774 } 6775 } 6776 6777 @Override 6778 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 6779 Region interactiveRegion, int interactionId, 6780 IAccessibilityInteractionConnectionCallback callback, int flags, 6781 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6782 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6783 if (viewRootImpl != null && viewRootImpl.mView != null) { 6784 viewRootImpl.getAccessibilityInteractionController() 6785 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 6786 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6787 interrogatingTid, spec); 6788 } else { 6789 // We cannot make the call and notify the caller so it does not wait. 6790 try { 6791 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6792 } catch (RemoteException re) { 6793 /* best effort - ignore */ 6794 } 6795 } 6796 } 6797 6798 @Override 6799 public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion, 6800 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6801 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6802 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6803 if (viewRootImpl != null && viewRootImpl.mView != null) { 6804 viewRootImpl.getAccessibilityInteractionController() 6805 .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion, 6806 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6807 spec); 6808 } else { 6809 // We cannot make the call and notify the caller so it does not wait. 6810 try { 6811 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6812 } catch (RemoteException re) { 6813 /* best effort - ignore */ 6814 } 6815 } 6816 } 6817 6818 @Override 6819 public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion, 6820 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6821 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6822 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6823 if (viewRootImpl != null && viewRootImpl.mView != null) { 6824 viewRootImpl.getAccessibilityInteractionController() 6825 .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion, 6826 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6827 spec); 6828 } else { 6829 // We cannot make the call and notify the caller so it does not wait. 6830 try { 6831 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6832 } catch (RemoteException re) { 6833 /* best effort - ignore */ 6834 } 6835 } 6836 } 6837 } 6838 6839 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 6840 private int mChangeTypes = 0; 6841 6842 public View mSource; 6843 public long mLastEventTimeMillis; 6844 6845 @Override 6846 public void run() { 6847 // The accessibility may be turned off while we were waiting so check again. 6848 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 6849 mLastEventTimeMillis = SystemClock.uptimeMillis(); 6850 AccessibilityEvent event = AccessibilityEvent.obtain(); 6851 event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 6852 event.setContentChangeTypes(mChangeTypes); 6853 mSource.sendAccessibilityEventUnchecked(event); 6854 } else { 6855 mLastEventTimeMillis = 0; 6856 } 6857 // In any case reset to initial state. 6858 mSource.resetSubtreeAccessibilityStateChanged(); 6859 mSource = null; 6860 mChangeTypes = 0; 6861 } 6862 6863 public void runOrPost(View source, int changeType) { 6864 if (mSource != null) { 6865 // If there is no common predecessor, then mSource points to 6866 // a removed view, hence in this case always prefer the source. 6867 View predecessor = getCommonPredecessor(mSource, source); 6868 mSource = (predecessor != null) ? predecessor : source; 6869 mChangeTypes |= changeType; 6870 return; 6871 } 6872 mSource = source; 6873 mChangeTypes = changeType; 6874 final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis; 6875 final long minEventIntevalMillis = 6876 ViewConfiguration.getSendRecurringAccessibilityEventsInterval(); 6877 if (timeSinceLastMillis >= minEventIntevalMillis) { 6878 mSource.removeCallbacks(this); 6879 run(); 6880 } else { 6881 mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis); 6882 } 6883 } 6884 } 6885} 6886