1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.view; 18 19 import static android.view.WindowCallbacks.RESIZE_MODE_DOCKED_DIVIDER; 20 import static android.view.WindowCallbacks.RESIZE_MODE_FREEFORM; 21 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY; 22 import static android.view.WindowManager.LayoutParams.TYPE_DOCK_DIVIDER; 23 import static android.view.WindowManager.LayoutParams.TYPE_INPUT_METHOD; 24 import static android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL; 25 import static android.view.WindowManager.LayoutParams.TYPE_VOLUME_OVERLAY; 26 27 import android.Manifest; 28 import android.animation.LayoutTransition; 29 import android.annotation.NonNull; 30 import android.app.ActivityManagerNative; 31 import android.app.ResourcesManager; 32 import android.content.ClipDescription; 33 import android.content.ComponentCallbacks; 34 import android.content.Context; 35 import android.content.pm.PackageManager; 36 import android.content.res.CompatibilityInfo; 37 import android.content.res.Configuration; 38 import android.content.res.Resources; 39 import android.graphics.Canvas; 40 import android.graphics.Matrix; 41 import android.graphics.PixelFormat; 42 import android.graphics.Point; 43 import android.graphics.PointF; 44 import android.graphics.PorterDuff; 45 import android.graphics.Rect; 46 import android.graphics.Region; 47 import android.graphics.drawable.AnimatedVectorDrawable; 48 import android.graphics.drawable.Drawable; 49 import android.hardware.display.DisplayManager; 50 import android.hardware.display.DisplayManager.DisplayListener; 51 import android.hardware.input.InputManager; 52 import android.media.AudioManager; 53 import android.os.Binder; 54 import android.os.Build; 55 import android.os.Bundle; 56 import android.os.Debug; 57 import android.os.Handler; 58 import android.os.Looper; 59 import android.os.Message; 60 import android.os.ParcelFileDescriptor; 61 import android.os.Process; 62 import android.os.RemoteException; 63 import android.os.SystemClock; 64 import android.os.SystemProperties; 65 import android.os.Trace; 66 import android.util.AndroidRuntimeException; 67 import android.util.DisplayMetrics; 68 import android.util.Log; 69 import android.util.Slog; 70 import android.util.TimeUtils; 71 import android.util.TypedValue; 72 import android.view.Surface.OutOfResourcesException; 73 import android.view.View.AttachInfo; 74 import android.view.View.MeasureSpec; 75 import android.view.accessibility.AccessibilityEvent; 76 import android.view.accessibility.AccessibilityManager; 77 import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 78 import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener; 79 import android.view.accessibility.AccessibilityNodeInfo; 80 import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction; 81 import android.view.accessibility.AccessibilityNodeProvider; 82 import android.view.accessibility.IAccessibilityInteractionConnection; 83 import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 84 import android.view.animation.AccelerateDecelerateInterpolator; 85 import android.view.animation.Interpolator; 86 import android.view.inputmethod.InputMethodManager; 87 import android.widget.Scroller; 88 89 import com.android.internal.R; 90 import com.android.internal.annotations.GuardedBy; 91 import com.android.internal.os.IResultReceiver; 92 import com.android.internal.os.SomeArgs; 93 import com.android.internal.policy.PhoneFallbackEventHandler; 94 import com.android.internal.view.BaseSurfaceHolder; 95 import com.android.internal.view.RootViewSurfaceTaker; 96 97 import java.io.FileDescriptor; 98 import java.io.IOException; 99 import java.io.OutputStream; 100 import java.io.PrintWriter; 101 import java.lang.ref.WeakReference; 102 import java.util.ArrayList; 103 import java.util.HashSet; 104 import java.util.concurrent.CountDownLatch; 105 106 /** 107 * The top of a view hierarchy, implementing the needed protocol between View 108 * and the WindowManager. This is for the most part an internal implementation 109 * detail of {@link WindowManagerGlobal}. 110 * 111 * {@hide} 112 */ 113 @SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 114 public final class ViewRootImpl implements ViewParent, 115 View.AttachInfo.Callbacks, ThreadedRenderer.HardwareDrawCallbacks { 116 private static final String TAG = "ViewRootImpl"; 117 private static final boolean DBG = false; 118 private static final boolean LOCAL_LOGV = false; 119 /** @noinspection PointlessBooleanExpression*/ 120 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 121 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 122 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 123 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 124 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 125 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 126 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 127 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 128 private static final boolean DEBUG_FPS = false; 129 private static final boolean DEBUG_INPUT_STAGES = false || LOCAL_LOGV; 130 private static final boolean DEBUG_KEEP_SCREEN_ON = false || LOCAL_LOGV; 131 132 /** 133 * Set to false if we do not want to use the multi threaded renderer. Note that by disabling 134 * this, WindowCallbacks will not fire. 135 */ 136 private static final boolean USE_MT_RENDERER = true; 137 138 /** 139 * Set this system property to true to force the view hierarchy to render 140 * at 60 Hz. This can be used to measure the potential framerate. 141 */ 142 private static final String PROPERTY_PROFILE_RENDERING = "viewroot.profile_rendering"; 143 144 // properties used by emulator to determine display shape 145 public static final String PROPERTY_EMULATOR_WIN_OUTSET_BOTTOM_PX = 146 "ro.emu.win_outset_bottom_px"; 147 148 /** 149 * Maximum time we allow the user to roll the trackball enough to generate 150 * a key event, before resetting the counters. 151 */ 152 static final int MAX_TRACKBALL_DELAY = 250; 153 154 static final ThreadLocal<HandlerActionQueue> sRunQueues = new ThreadLocal<HandlerActionQueue>(); 155 156 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList(); 157 static boolean sFirstDrawComplete = false; 158 159 static final ArrayList<ComponentCallbacks> sConfigCallbacks = new ArrayList(); 160 161 /** 162 * This list must only be modified by the main thread, so a lock is only needed when changing 163 * the list or when accessing the list from a non-main thread. 164 */ 165 @GuardedBy("mWindowCallbacks") 166 final ArrayList<WindowCallbacks> mWindowCallbacks = new ArrayList<>(); 167 final Context mContext; 168 final IWindowSession mWindowSession; 169 @NonNull Display mDisplay; 170 final DisplayManager mDisplayManager; 171 final String mBasePackageName; 172 173 final int[] mTmpLocation = new int[2]; 174 175 final TypedValue mTmpValue = new TypedValue(); 176 177 final Thread mThread; 178 179 final WindowLeaked mLocation; 180 181 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 182 183 final W mWindow; 184 185 final int mTargetSdkVersion; 186 187 int mSeq; 188 189 View mView; 190 191 View mAccessibilityFocusedHost; 192 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 193 194 // The view which captures mouse input, or null when no one is capturing. 195 View mCapturingView; 196 197 int mViewVisibility; 198 boolean mAppVisible = true; 199 // For recents to freeform transition we need to keep drawing after the app receives information 200 // that it became invisible. This will ignore that information and depend on the decor view 201 // visibility to control drawing. The decor view visibility will get adjusted when the app get 202 // stopped and that's when the app will stop drawing further frames. 203 private boolean mForceDecorViewVisibility = false; 204 int mOrigWindowType = -1; 205 206 /** Whether the window had focus during the most recent traversal. */ 207 boolean mHadWindowFocus; 208 209 /** 210 * Whether the window lost focus during a previous traversal and has not 211 * yet gained it back. Used to determine whether a WINDOW_STATE_CHANGE 212 * accessibility events should be sent during traversal. 213 */ 214 boolean mLostWindowFocus; 215 216 // Set to true if the owner of this window is in the stopped state, 217 // so the window should no longer be active. 218 boolean mStopped = false; 219 220 // Set to true if the owner of this window is in ambient mode, 221 // which means it won't receive input events. 222 boolean mIsAmbientMode = false; 223 224 // Set to true to stop input during an Activity Transition. 225 boolean mPausedForTransition = false; 226 227 boolean mLastInCompatMode = false; 228 229 SurfaceHolder.Callback2 mSurfaceHolderCallback; 230 BaseSurfaceHolder mSurfaceHolder; 231 boolean mIsCreating; 232 boolean mDrawingAllowed; 233 234 final Region mTransparentRegion; 235 final Region mPreviousTransparentRegion; 236 237 int mWidth; 238 int mHeight; 239 Rect mDirty; 240 boolean mIsAnimating; 241 242 private boolean mDragResizing; 243 private boolean mInvalidateRootRequested; 244 private int mResizeMode; 245 private int mCanvasOffsetX; 246 private int mCanvasOffsetY; 247 private boolean mActivityRelaunched; 248 249 CompatibilityInfo.Translator mTranslator; 250 251 final View.AttachInfo mAttachInfo; 252 InputChannel mInputChannel; 253 InputQueue.Callback mInputQueueCallback; 254 InputQueue mInputQueue; 255 FallbackEventHandler mFallbackEventHandler; 256 Choreographer mChoreographer; 257 258 final Rect mTempRect; // used in the transaction to not thrash the heap. 259 final Rect mVisRect; // used to retrieve visible rect of focused view. 260 261 boolean mTraversalScheduled; 262 int mTraversalBarrier; 263 boolean mWillDrawSoon; 264 /** Set to true while in performTraversals for detecting when die(true) is called from internal 265 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 266 boolean mIsInTraversal; 267 boolean mApplyInsetsRequested; 268 boolean mLayoutRequested; 269 boolean mFirst; 270 boolean mReportNextDraw; 271 boolean mFullRedrawNeeded; 272 boolean mNewSurfaceNeeded; 273 boolean mHasHadWindowFocus; 274 boolean mLastWasImTarget; 275 boolean mForceNextWindowRelayout; 276 CountDownLatch mWindowDrawCountDown; 277 278 boolean mIsDrawing; 279 int mLastSystemUiVisibility; 280 int mClientWindowLayoutFlags; 281 boolean mLastOverscanRequested; 282 283 // Pool of queued input events. 284 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 285 private QueuedInputEvent mQueuedInputEventPool; 286 private int mQueuedInputEventPoolSize; 287 288 /* Input event queue. 289 * Pending input events are input events waiting to be delivered to the input stages 290 * and handled by the application. 291 */ 292 QueuedInputEvent mPendingInputEventHead; 293 QueuedInputEvent mPendingInputEventTail; 294 int mPendingInputEventCount; 295 boolean mProcessInputEventsScheduled; 296 boolean mUnbufferedInputDispatch; 297 String mPendingInputEventQueueLengthCounterName = "pq"; 298 299 InputStage mFirstInputStage; 300 InputStage mFirstPostImeInputStage; 301 InputStage mSyntheticInputStage; 302 303 boolean mWindowAttributesChanged = false; 304 int mWindowAttributesChangesFlag = 0; 305 306 // These can be accessed by any thread, must be protected with a lock. 307 // Surface can never be reassigned or cleared (use Surface.clear()). 308 final Surface mSurface = new Surface(); 309 310 boolean mAdded; 311 boolean mAddedTouchMode; 312 313 // These are accessed by multiple threads. 314 final Rect mWinFrame; // frame given by window manager. 315 316 final Rect mPendingOverscanInsets = new Rect(); 317 final Rect mPendingVisibleInsets = new Rect(); 318 final Rect mPendingStableInsets = new Rect(); 319 final Rect mPendingContentInsets = new Rect(); 320 final Rect mPendingOutsets = new Rect(); 321 final Rect mPendingBackDropFrame = new Rect(); 322 boolean mPendingAlwaysConsumeNavBar; 323 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 324 = new ViewTreeObserver.InternalInsetsInfo(); 325 326 final Rect mDispatchContentInsets = new Rect(); 327 final Rect mDispatchStableInsets = new Rect(); 328 329 private WindowInsets mLastWindowInsets; 330 331 final Configuration mLastConfiguration = new Configuration(); 332 final Configuration mPendingConfiguration = new Configuration(); 333 334 boolean mScrollMayChange; 335 int mSoftInputMode; 336 WeakReference<View> mLastScrolledFocus; 337 int mScrollY; 338 int mCurScrollY; 339 Scroller mScroller; 340 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 341 private ArrayList<LayoutTransition> mPendingTransitions; 342 343 final ViewConfiguration mViewConfiguration; 344 345 /* Drag/drop */ 346 ClipDescription mDragDescription; 347 View mCurrentDragView; 348 volatile Object mLocalDragState; 349 final PointF mDragPoint = new PointF(); 350 final PointF mLastTouchPoint = new PointF(); 351 int mLastTouchSource; 352 353 private boolean mProfileRendering; 354 private Choreographer.FrameCallback mRenderProfiler; 355 private boolean mRenderProfilingEnabled; 356 357 // Variables to track frames per second, enabled via DEBUG_FPS flag 358 private long mFpsStartTime = -1; 359 private long mFpsPrevTime = -1; 360 private int mFpsNumFrames; 361 362 private int mPointerIconType = PointerIcon.TYPE_NOT_SPECIFIED; 363 private PointerIcon mCustomPointerIcon = null; 364 365 /** 366 * see {@link #playSoundEffect(int)} 367 */ 368 AudioManager mAudioManager; 369 370 final AccessibilityManager mAccessibilityManager; 371 372 AccessibilityInteractionController mAccessibilityInteractionController; 373 374 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 375 HighContrastTextManager mHighContrastTextManager; 376 377 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 378 379 HashSet<View> mTempHashSet; 380 381 private final int mDensity; 382 private final int mNoncompatDensity; 383 384 private boolean mInLayout = false; 385 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 386 boolean mHandlingLayoutInLayoutRequest = false; 387 388 private int mViewLayoutDirectionInitial; 389 390 /** Set to true once doDie() has been called. */ 391 private boolean mRemoved; 392 393 private boolean mNeedsHwRendererSetup; 394 395 /** 396 * Consistency verifier for debugging purposes. 397 */ 398 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 399 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 400 new InputEventConsistencyVerifier(this, 0) : null; 401 402 static final class SystemUiVisibilityInfo { 403 int seq; 404 int globalVisibility; 405 int localValue; 406 int localChanges; 407 } 408 409 private String mTag = TAG; 410 411 public ViewRootImpl(Context context, Display display) { 412 mContext = context; 413 mWindowSession = WindowManagerGlobal.getWindowSession(); 414 mDisplay = display; 415 mBasePackageName = context.getBasePackageName(); 416 mThread = Thread.currentThread(); 417 mLocation = new WindowLeaked(null); 418 mLocation.fillInStackTrace(); 419 mWidth = -1; 420 mHeight = -1; 421 mDirty = new Rect(); 422 mTempRect = new Rect(); 423 mVisRect = new Rect(); 424 mWinFrame = new Rect(); 425 mWindow = new W(this); 426 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 427 mViewVisibility = View.GONE; 428 mTransparentRegion = new Region(); 429 mPreviousTransparentRegion = new Region(); 430 mFirst = true; // true for the first time the view is added 431 mAdded = false; 432 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 433 mAccessibilityManager = AccessibilityManager.getInstance(context); 434 mAccessibilityInteractionConnectionManager = 435 new AccessibilityInteractionConnectionManager(); 436 mAccessibilityManager.addAccessibilityStateChangeListener( 437 mAccessibilityInteractionConnectionManager); 438 mHighContrastTextManager = new HighContrastTextManager(); 439 mAccessibilityManager.addHighTextContrastStateChangeListener( 440 mHighContrastTextManager); 441 mViewConfiguration = ViewConfiguration.get(context); 442 mDensity = context.getResources().getDisplayMetrics().densityDpi; 443 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 444 mFallbackEventHandler = new PhoneFallbackEventHandler(context); 445 mChoreographer = Choreographer.getInstance(); 446 mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE); 447 loadSystemProperties(); 448 } 449 450 public static void addFirstDrawHandler(Runnable callback) { 451 synchronized (sFirstDrawHandlers) { 452 if (!sFirstDrawComplete) { 453 sFirstDrawHandlers.add(callback); 454 } 455 } 456 } 457 458 public static void addConfigCallback(ComponentCallbacks callback) { 459 synchronized (sConfigCallbacks) { 460 sConfigCallbacks.add(callback); 461 } 462 } 463 464 public void addWindowCallbacks(WindowCallbacks callback) { 465 if (USE_MT_RENDERER) { 466 synchronized (mWindowCallbacks) { 467 mWindowCallbacks.add(callback); 468 } 469 } 470 } 471 472 public void removeWindowCallbacks(WindowCallbacks callback) { 473 if (USE_MT_RENDERER) { 474 synchronized (mWindowCallbacks) { 475 mWindowCallbacks.remove(callback); 476 } 477 } 478 } 479 480 public void reportDrawFinish() { 481 if (mWindowDrawCountDown != null) { 482 mWindowDrawCountDown.countDown(); 483 } 484 } 485 486 // FIXME for perf testing only 487 private boolean mProfile = false; 488 489 /** 490 * Call this to profile the next traversal call. 491 * FIXME for perf testing only. Remove eventually 492 */ 493 public void profile() { 494 mProfile = true; 495 } 496 497 /** 498 * Indicates whether we are in touch mode. Calling this method triggers an IPC 499 * call and should be avoided whenever possible. 500 * 501 * @return True, if the device is in touch mode, false otherwise. 502 * 503 * @hide 504 */ 505 static boolean isInTouchMode() { 506 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 507 if (windowSession != null) { 508 try { 509 return windowSession.getInTouchMode(); 510 } catch (RemoteException e) { 511 } 512 } 513 return false; 514 } 515 516 /** 517 * Notifies us that our child has been rebuilt, following 518 * a window preservation operation. In these cases we 519 * keep the same DecorView, but the activity controlling it 520 * is a different instance, and we need to update our 521 * callbacks. 522 * 523 * @hide 524 */ 525 public void notifyChildRebuilt() { 526 if (mView instanceof RootViewSurfaceTaker) { 527 mSurfaceHolderCallback = 528 ((RootViewSurfaceTaker)mView).willYouTakeTheSurface(); 529 if (mSurfaceHolderCallback != null) { 530 mSurfaceHolder = new TakenSurfaceHolder(); 531 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 532 } else { 533 mSurfaceHolder = null; 534 } 535 536 mInputQueueCallback = 537 ((RootViewSurfaceTaker)mView).willYouTakeTheInputQueue(); 538 if (mInputQueueCallback != null) { 539 mInputQueueCallback.onInputQueueCreated(mInputQueue); 540 } 541 } 542 } 543 544 /** 545 * We have one child 546 */ 547 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 548 synchronized (this) { 549 if (mView == null) { 550 mView = view; 551 552 mAttachInfo.mDisplayState = mDisplay.getState(); 553 mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); 554 555 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 556 mFallbackEventHandler.setView(view); 557 mWindowAttributes.copyFrom(attrs); 558 if (mWindowAttributes.packageName == null) { 559 mWindowAttributes.packageName = mBasePackageName; 560 } 561 attrs = mWindowAttributes; 562 setTag(); 563 564 if (DEBUG_KEEP_SCREEN_ON && (mClientWindowLayoutFlags 565 & WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) != 0 566 && (attrs.flags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) == 0) { 567 Slog.d(mTag, "setView: FLAG_KEEP_SCREEN_ON changed from true to false!"); 568 } 569 // Keep track of the actual window flags supplied by the client. 570 mClientWindowLayoutFlags = attrs.flags; 571 572 setAccessibilityFocus(null, null); 573 574 if (view instanceof RootViewSurfaceTaker) { 575 mSurfaceHolderCallback = 576 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 577 if (mSurfaceHolderCallback != null) { 578 mSurfaceHolder = new TakenSurfaceHolder(); 579 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 580 } 581 } 582 583 // Compute surface insets required to draw at specified Z value. 584 // TODO: Use real shadow insets for a constant max Z. 585 if (!attrs.hasManualSurfaceInsets) { 586 attrs.setSurfaceInsets(view, false /*manual*/, true /*preservePrevious*/); 587 } 588 589 CompatibilityInfo compatibilityInfo = 590 mDisplay.getDisplayAdjustments().getCompatibilityInfo(); 591 mTranslator = compatibilityInfo.getTranslator(); 592 593 // If the application owns the surface, don't enable hardware acceleration 594 if (mSurfaceHolder == null) { 595 enableHardwareAcceleration(attrs); 596 } 597 598 boolean restore = false; 599 if (mTranslator != null) { 600 mSurface.setCompatibilityTranslator(mTranslator); 601 restore = true; 602 attrs.backup(); 603 mTranslator.translateWindowLayout(attrs); 604 } 605 if (DEBUG_LAYOUT) Log.d(mTag, "WindowLayout in setView:" + attrs); 606 607 if (!compatibilityInfo.supportsScreen()) { 608 attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 609 mLastInCompatMode = true; 610 } 611 612 mSoftInputMode = attrs.softInputMode; 613 mWindowAttributesChanged = true; 614 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 615 mAttachInfo.mRootView = view; 616 mAttachInfo.mScalingRequired = mTranslator != null; 617 mAttachInfo.mApplicationScale = 618 mTranslator == null ? 1.0f : mTranslator.applicationScale; 619 if (panelParentView != null) { 620 mAttachInfo.mPanelParentWindowToken 621 = panelParentView.getApplicationWindowToken(); 622 } 623 mAdded = true; 624 int res; /* = WindowManagerImpl.ADD_OKAY; */ 625 626 // Schedule the first layout -before- adding to the window 627 // manager, to make sure we do the relayout before receiving 628 // any other events from the system. 629 requestLayout(); 630 if ((mWindowAttributes.inputFeatures 631 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 632 mInputChannel = new InputChannel(); 633 } 634 mForceDecorViewVisibility = (mWindowAttributes.privateFlags 635 & PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY) != 0; 636 try { 637 mOrigWindowType = mWindowAttributes.type; 638 mAttachInfo.mRecomputeGlobalAttributes = true; 639 collectViewAttributes(); 640 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 641 getHostVisibility(), mDisplay.getDisplayId(), 642 mAttachInfo.mContentInsets, mAttachInfo.mStableInsets, 643 mAttachInfo.mOutsets, mInputChannel); 644 } catch (RemoteException e) { 645 mAdded = false; 646 mView = null; 647 mAttachInfo.mRootView = null; 648 mInputChannel = null; 649 mFallbackEventHandler.setView(null); 650 unscheduleTraversals(); 651 setAccessibilityFocus(null, null); 652 throw new RuntimeException("Adding window failed", e); 653 } finally { 654 if (restore) { 655 attrs.restore(); 656 } 657 } 658 659 if (mTranslator != null) { 660 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 661 } 662 mPendingOverscanInsets.set(0, 0, 0, 0); 663 mPendingContentInsets.set(mAttachInfo.mContentInsets); 664 mPendingStableInsets.set(mAttachInfo.mStableInsets); 665 mPendingVisibleInsets.set(0, 0, 0, 0); 666 mAttachInfo.mAlwaysConsumeNavBar = 667 (res & WindowManagerGlobal.ADD_FLAG_ALWAYS_CONSUME_NAV_BAR) != 0; 668 mPendingAlwaysConsumeNavBar = mAttachInfo.mAlwaysConsumeNavBar; 669 if (DEBUG_LAYOUT) Log.v(mTag, "Added window " + mWindow); 670 if (res < WindowManagerGlobal.ADD_OKAY) { 671 mAttachInfo.mRootView = null; 672 mAdded = false; 673 mFallbackEventHandler.setView(null); 674 unscheduleTraversals(); 675 setAccessibilityFocus(null, null); 676 switch (res) { 677 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 678 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 679 throw new WindowManager.BadTokenException( 680 "Unable to add window -- token " + attrs.token 681 + " is not valid; is your activity running?"); 682 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 683 throw new WindowManager.BadTokenException( 684 "Unable to add window -- token " + attrs.token 685 + " is not for an application"); 686 case WindowManagerGlobal.ADD_APP_EXITING: 687 throw new WindowManager.BadTokenException( 688 "Unable to add window -- app for token " + attrs.token 689 + " is exiting"); 690 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 691 throw new WindowManager.BadTokenException( 692 "Unable to add window -- window " + mWindow 693 + " has already been added"); 694 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 695 // Silently ignore -- we would have just removed it 696 // right away, anyway. 697 return; 698 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 699 throw new WindowManager.BadTokenException("Unable to add window " 700 + mWindow + " -- another window of type " 701 + mWindowAttributes.type + " already exists"); 702 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 703 throw new WindowManager.BadTokenException("Unable to add window " 704 + mWindow + " -- permission denied for window type " 705 + mWindowAttributes.type); 706 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 707 throw new WindowManager.InvalidDisplayException("Unable to add window " 708 + mWindow + " -- the specified display can not be found"); 709 case WindowManagerGlobal.ADD_INVALID_TYPE: 710 throw new WindowManager.InvalidDisplayException("Unable to add window " 711 + mWindow + " -- the specified window type " 712 + mWindowAttributes.type + " is not valid"); 713 } 714 throw new RuntimeException( 715 "Unable to add window -- unknown error code " + res); 716 } 717 718 if (view instanceof RootViewSurfaceTaker) { 719 mInputQueueCallback = 720 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 721 } 722 if (mInputChannel != null) { 723 if (mInputQueueCallback != null) { 724 mInputQueue = new InputQueue(); 725 mInputQueueCallback.onInputQueueCreated(mInputQueue); 726 } 727 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 728 Looper.myLooper()); 729 } 730 731 view.assignParent(this); 732 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 733 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 734 735 if (mAccessibilityManager.isEnabled()) { 736 mAccessibilityInteractionConnectionManager.ensureConnection(); 737 } 738 739 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 740 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 741 } 742 743 // Set up the input pipeline. 744 CharSequence counterSuffix = attrs.getTitle(); 745 mSyntheticInputStage = new SyntheticInputStage(); 746 InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage); 747 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 748 "aq:native-post-ime:" + counterSuffix); 749 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 750 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 751 "aq:ime:" + counterSuffix); 752 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 753 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 754 "aq:native-pre-ime:" + counterSuffix); 755 756 mFirstInputStage = nativePreImeStage; 757 mFirstPostImeInputStage = earlyPostImeStage; 758 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 759 } 760 } 761 } 762 763 private void setTag() { 764 final String[] split = mWindowAttributes.getTitle().toString().split("\\."); 765 if (split.length > 0) { 766 mTag = TAG + "[" + split[split.length - 1] + "]"; 767 } 768 } 769 770 /** Whether the window is in local focus mode or not */ 771 private boolean isInLocalFocusMode() { 772 return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0; 773 } 774 775 public int getWindowFlags() { 776 return mWindowAttributes.flags; 777 } 778 779 public int getDisplayId() { 780 return mDisplay.getDisplayId(); 781 } 782 783 public CharSequence getTitle() { 784 return mWindowAttributes.getTitle(); 785 } 786 787 void destroyHardwareResources() { 788 if (mAttachInfo.mHardwareRenderer != null) { 789 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 790 mAttachInfo.mHardwareRenderer.destroy(); 791 } 792 } 793 794 public void detachFunctor(long functor) { 795 if (mAttachInfo.mHardwareRenderer != null) { 796 // Fence so that any pending invokeFunctor() messages will be processed 797 // before we return from detachFunctor. 798 mAttachInfo.mHardwareRenderer.stopDrawing(); 799 } 800 } 801 802 /** 803 * Schedules the functor for execution in either kModeProcess or 804 * kModeProcessNoContext, depending on whether or not there is an EGLContext. 805 * 806 * @param functor The native functor to invoke 807 * @param waitForCompletion If true, this will not return until the functor 808 * has invoked. If false, the functor may be invoked 809 * asynchronously. 810 */ 811 public static void invokeFunctor(long functor, boolean waitForCompletion) { 812 ThreadedRenderer.invokeFunctor(functor, waitForCompletion); 813 } 814 815 public void registerAnimatingRenderNode(RenderNode animator) { 816 if (mAttachInfo.mHardwareRenderer != null) { 817 mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator); 818 } else { 819 if (mAttachInfo.mPendingAnimatingRenderNodes == null) { 820 mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>(); 821 } 822 mAttachInfo.mPendingAnimatingRenderNodes.add(animator); 823 } 824 } 825 826 public void registerVectorDrawableAnimator( 827 AnimatedVectorDrawable.VectorDrawableAnimatorRT animator) { 828 if (mAttachInfo.mHardwareRenderer != null) { 829 mAttachInfo.mHardwareRenderer.registerVectorDrawableAnimator(animator); 830 } 831 } 832 833 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 834 mAttachInfo.mHardwareAccelerated = false; 835 mAttachInfo.mHardwareAccelerationRequested = false; 836 837 // Don't enable hardware acceleration when the application is in compatibility mode 838 if (mTranslator != null) return; 839 840 // Try to enable hardware acceleration if requested 841 final boolean hardwareAccelerated = 842 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 843 844 if (hardwareAccelerated) { 845 if (!ThreadedRenderer.isAvailable()) { 846 return; 847 } 848 849 // Persistent processes (including the system) should not do 850 // accelerated rendering on low-end devices. In that case, 851 // sRendererDisabled will be set. In addition, the system process 852 // itself should never do accelerated rendering. In that case, both 853 // sRendererDisabled and sSystemRendererDisabled are set. When 854 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 855 // can be used by code on the system process to escape that and enable 856 // HW accelerated drawing. (This is basically for the lock screen.) 857 858 final boolean fakeHwAccelerated = (attrs.privateFlags & 859 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 860 final boolean forceHwAccelerated = (attrs.privateFlags & 861 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 862 863 if (fakeHwAccelerated) { 864 // This is exclusively for the preview windows the window manager 865 // shows for launching applications, so they will look more like 866 // the app being launched. 867 mAttachInfo.mHardwareAccelerationRequested = true; 868 } else if (!ThreadedRenderer.sRendererDisabled 869 || (ThreadedRenderer.sSystemRendererDisabled && forceHwAccelerated)) { 870 if (mAttachInfo.mHardwareRenderer != null) { 871 mAttachInfo.mHardwareRenderer.destroy(); 872 } 873 874 final Rect insets = attrs.surfaceInsets; 875 final boolean hasSurfaceInsets = insets.left != 0 || insets.right != 0 876 || insets.top != 0 || insets.bottom != 0; 877 final boolean translucent = attrs.format != PixelFormat.OPAQUE || hasSurfaceInsets; 878 mAttachInfo.mHardwareRenderer = ThreadedRenderer.create(mContext, translucent); 879 if (mAttachInfo.mHardwareRenderer != null) { 880 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 881 mAttachInfo.mHardwareAccelerated = 882 mAttachInfo.mHardwareAccelerationRequested = true; 883 } 884 } 885 } 886 } 887 888 public View getView() { 889 return mView; 890 } 891 892 final WindowLeaked getLocation() { 893 return mLocation; 894 } 895 896 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 897 synchronized (this) { 898 final int oldInsetLeft = mWindowAttributes.surfaceInsets.left; 899 final int oldInsetTop = mWindowAttributes.surfaceInsets.top; 900 final int oldInsetRight = mWindowAttributes.surfaceInsets.right; 901 final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom; 902 final int oldSoftInputMode = mWindowAttributes.softInputMode; 903 final boolean oldHasManualSurfaceInsets = mWindowAttributes.hasManualSurfaceInsets; 904 905 if (DEBUG_KEEP_SCREEN_ON && (mClientWindowLayoutFlags 906 & WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) != 0 907 && (attrs.flags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) == 0) { 908 Slog.d(mTag, "setLayoutParams: FLAG_KEEP_SCREEN_ON from true to false!"); 909 } 910 911 // Keep track of the actual window flags supplied by the client. 912 mClientWindowLayoutFlags = attrs.flags; 913 914 // Preserve compatible window flag if exists. 915 final int compatibleWindowFlag = mWindowAttributes.privateFlags 916 & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 917 918 // Transfer over system UI visibility values as they carry current state. 919 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 920 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 921 922 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 923 if ((mWindowAttributesChangesFlag 924 & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) { 925 // Recompute system ui visibility. 926 mAttachInfo.mRecomputeGlobalAttributes = true; 927 } 928 if ((mWindowAttributesChangesFlag 929 & WindowManager.LayoutParams.LAYOUT_CHANGED) != 0) { 930 // Request to update light center. 931 mAttachInfo.mNeedsUpdateLightCenter = true; 932 } 933 if (mWindowAttributes.packageName == null) { 934 mWindowAttributes.packageName = mBasePackageName; 935 } 936 mWindowAttributes.privateFlags |= compatibleWindowFlag; 937 938 if (mWindowAttributes.preservePreviousSurfaceInsets) { 939 // Restore old surface insets. 940 mWindowAttributes.surfaceInsets.set( 941 oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom); 942 mWindowAttributes.hasManualSurfaceInsets = oldHasManualSurfaceInsets; 943 } else if (mWindowAttributes.surfaceInsets.left != oldInsetLeft 944 || mWindowAttributes.surfaceInsets.top != oldInsetTop 945 || mWindowAttributes.surfaceInsets.right != oldInsetRight 946 || mWindowAttributes.surfaceInsets.bottom != oldInsetBottom) { 947 mNeedsHwRendererSetup = true; 948 } 949 950 applyKeepScreenOnFlag(mWindowAttributes); 951 952 if (newView) { 953 mSoftInputMode = attrs.softInputMode; 954 requestLayout(); 955 } 956 957 // Don't lose the mode we last auto-computed. 958 if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 959 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 960 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 961 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 962 | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 963 } 964 965 mWindowAttributesChanged = true; 966 scheduleTraversals(); 967 } 968 } 969 970 void handleAppVisibility(boolean visible) { 971 if (mAppVisible != visible) { 972 mAppVisible = visible; 973 scheduleTraversals(); 974 if (!mAppVisible) { 975 WindowManagerGlobal.trimForeground(); 976 } 977 } 978 } 979 980 void handleGetNewSurface() { 981 mNewSurfaceNeeded = true; 982 mFullRedrawNeeded = true; 983 scheduleTraversals(); 984 } 985 986 private final DisplayListener mDisplayListener = new DisplayListener() { 987 @Override 988 public void onDisplayChanged(int displayId) { 989 if (mView != null && mDisplay.getDisplayId() == displayId) { 990 final int oldDisplayState = mAttachInfo.mDisplayState; 991 final int newDisplayState = mDisplay.getState(); 992 if (oldDisplayState != newDisplayState) { 993 mAttachInfo.mDisplayState = newDisplayState; 994 pokeDrawLockIfNeeded(); 995 if (oldDisplayState != Display.STATE_UNKNOWN) { 996 final int oldScreenState = toViewScreenState(oldDisplayState); 997 final int newScreenState = toViewScreenState(newDisplayState); 998 if (oldScreenState != newScreenState) { 999 mView.dispatchScreenStateChanged(newScreenState); 1000 } 1001 if (oldDisplayState == Display.STATE_OFF) { 1002 // Draw was suppressed so we need to for it to happen here. 1003 mFullRedrawNeeded = true; 1004 scheduleTraversals(); 1005 } 1006 } 1007 } 1008 } 1009 } 1010 1011 @Override 1012 public void onDisplayRemoved(int displayId) { 1013 } 1014 1015 @Override 1016 public void onDisplayAdded(int displayId) { 1017 } 1018 1019 private int toViewScreenState(int displayState) { 1020 return displayState == Display.STATE_OFF ? 1021 View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON; 1022 } 1023 }; 1024 1025 void pokeDrawLockIfNeeded() { 1026 final int displayState = mAttachInfo.mDisplayState; 1027 if (mView != null && mAdded && mTraversalScheduled 1028 && (displayState == Display.STATE_DOZE 1029 || displayState == Display.STATE_DOZE_SUSPEND)) { 1030 try { 1031 mWindowSession.pokeDrawLock(mWindow); 1032 } catch (RemoteException ex) { 1033 // System server died, oh well. 1034 } 1035 } 1036 } 1037 1038 @Override 1039 public void requestFitSystemWindows() { 1040 checkThread(); 1041 mApplyInsetsRequested = true; 1042 scheduleTraversals(); 1043 } 1044 1045 @Override 1046 public void requestLayout() { 1047 if (!mHandlingLayoutInLayoutRequest) { 1048 checkThread(); 1049 mLayoutRequested = true; 1050 scheduleTraversals(); 1051 } 1052 } 1053 1054 @Override 1055 public boolean isLayoutRequested() { 1056 return mLayoutRequested; 1057 } 1058 1059 void invalidate() { 1060 mDirty.set(0, 0, mWidth, mHeight); 1061 if (!mWillDrawSoon) { 1062 scheduleTraversals(); 1063 } 1064 } 1065 1066 void invalidateWorld(View view) { 1067 view.invalidate(); 1068 if (view instanceof ViewGroup) { 1069 ViewGroup parent = (ViewGroup) view; 1070 for (int i = 0; i < parent.getChildCount(); i++) { 1071 invalidateWorld(parent.getChildAt(i)); 1072 } 1073 } 1074 } 1075 1076 @Override 1077 public void invalidateChild(View child, Rect dirty) { 1078 invalidateChildInParent(null, dirty); 1079 } 1080 1081 @Override 1082 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 1083 checkThread(); 1084 if (DEBUG_DRAW) Log.v(mTag, "Invalidate child: " + dirty); 1085 1086 if (dirty == null) { 1087 invalidate(); 1088 return null; 1089 } else if (dirty.isEmpty() && !mIsAnimating) { 1090 return null; 1091 } 1092 1093 if (mCurScrollY != 0 || mTranslator != null) { 1094 mTempRect.set(dirty); 1095 dirty = mTempRect; 1096 if (mCurScrollY != 0) { 1097 dirty.offset(0, -mCurScrollY); 1098 } 1099 if (mTranslator != null) { 1100 mTranslator.translateRectInAppWindowToScreen(dirty); 1101 } 1102 if (mAttachInfo.mScalingRequired) { 1103 dirty.inset(-1, -1); 1104 } 1105 } 1106 1107 invalidateRectOnScreen(dirty); 1108 1109 return null; 1110 } 1111 1112 private void invalidateRectOnScreen(Rect dirty) { 1113 final Rect localDirty = mDirty; 1114 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 1115 mAttachInfo.mSetIgnoreDirtyState = true; 1116 mAttachInfo.mIgnoreDirtyState = true; 1117 } 1118 1119 // Add the new dirty rect to the current one 1120 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 1121 // Intersect with the bounds of the window to skip 1122 // updates that lie outside of the visible region 1123 final float appScale = mAttachInfo.mApplicationScale; 1124 final boolean intersected = localDirty.intersect(0, 0, 1125 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1126 if (!intersected) { 1127 localDirty.setEmpty(); 1128 } 1129 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 1130 scheduleTraversals(); 1131 } 1132 } 1133 1134 public void setIsAmbientMode(boolean ambient) { 1135 mIsAmbientMode = ambient; 1136 } 1137 1138 void setWindowStopped(boolean stopped) { 1139 if (mStopped != stopped) { 1140 mStopped = stopped; 1141 final ThreadedRenderer renderer = mAttachInfo.mHardwareRenderer; 1142 if (renderer != null) { 1143 if (DEBUG_DRAW) Log.d(mTag, "WindowStopped on " + getTitle() + " set to " + mStopped); 1144 renderer.setStopped(mStopped); 1145 } 1146 if (!mStopped) { 1147 scheduleTraversals(); 1148 } else { 1149 if (renderer != null) { 1150 renderer.destroyHardwareResources(mView); 1151 } 1152 } 1153 } 1154 } 1155 1156 /** 1157 * Block the input events during an Activity Transition. The KEYCODE_BACK event is allowed 1158 * through to allow quick reversal of the Activity Transition. 1159 * 1160 * @param paused true to pause, false to resume. 1161 */ 1162 public void setPausedForTransition(boolean paused) { 1163 mPausedForTransition = paused; 1164 } 1165 1166 @Override 1167 public ViewParent getParent() { 1168 return null; 1169 } 1170 1171 @Override 1172 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 1173 if (child != mView) { 1174 throw new RuntimeException("child is not mine, honest!"); 1175 } 1176 // Note: don't apply scroll offset, because we want to know its 1177 // visibility in the virtual canvas being given to the view hierarchy. 1178 return r.intersect(0, 0, mWidth, mHeight); 1179 } 1180 1181 @Override 1182 public void bringChildToFront(View child) { 1183 } 1184 1185 int getHostVisibility() { 1186 return (mAppVisible || mForceDecorViewVisibility) ? mView.getVisibility() : View.GONE; 1187 } 1188 1189 /** 1190 * Add LayoutTransition to the list of transitions to be started in the next traversal. 1191 * This list will be cleared after the transitions on the list are start()'ed. These 1192 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 1193 * happens during the layout phase of traversal, which we want to complete before any of the 1194 * animations are started (because those animations may side-effect properties that layout 1195 * depends upon, like the bounding rectangles of the affected views). So we add the transition 1196 * to the list and it is started just prior to starting the drawing phase of traversal. 1197 * 1198 * @param transition The LayoutTransition to be started on the next traversal. 1199 * 1200 * @hide 1201 */ 1202 public void requestTransitionStart(LayoutTransition transition) { 1203 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 1204 if (mPendingTransitions == null) { 1205 mPendingTransitions = new ArrayList<LayoutTransition>(); 1206 } 1207 mPendingTransitions.add(transition); 1208 } 1209 } 1210 1211 /** 1212 * Notifies the HardwareRenderer that a new frame will be coming soon. 1213 * Currently only {@link ThreadedRenderer} cares about this, and uses 1214 * this knowledge to adjust the scheduling of off-thread animations 1215 */ 1216 void notifyRendererOfFramePending() { 1217 if (mAttachInfo.mHardwareRenderer != null) { 1218 mAttachInfo.mHardwareRenderer.notifyFramePending(); 1219 } 1220 } 1221 1222 void scheduleTraversals() { 1223 if (!mTraversalScheduled) { 1224 mTraversalScheduled = true; 1225 mTraversalBarrier = mHandler.getLooper().getQueue().postSyncBarrier(); 1226 mChoreographer.postCallback( 1227 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1228 if (!mUnbufferedInputDispatch) { 1229 scheduleConsumeBatchedInput(); 1230 } 1231 notifyRendererOfFramePending(); 1232 pokeDrawLockIfNeeded(); 1233 } 1234 } 1235 1236 void unscheduleTraversals() { 1237 if (mTraversalScheduled) { 1238 mTraversalScheduled = false; 1239 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1240 mChoreographer.removeCallbacks( 1241 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1242 } 1243 } 1244 1245 void doTraversal() { 1246 if (mTraversalScheduled) { 1247 mTraversalScheduled = false; 1248 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1249 1250 if (mProfile) { 1251 Debug.startMethodTracing("ViewAncestor"); 1252 } 1253 1254 performTraversals(); 1255 1256 if (mProfile) { 1257 Debug.stopMethodTracing(); 1258 mProfile = false; 1259 } 1260 } 1261 } 1262 1263 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1264 // Update window's global keep screen on flag: if a view has requested 1265 // that the screen be kept on, then it is always set; otherwise, it is 1266 // set to whatever the client last requested for the global state. 1267 if (mAttachInfo.mKeepScreenOn) { 1268 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1269 } else { 1270 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1271 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1272 } 1273 } 1274 1275 private boolean collectViewAttributes() { 1276 if (mAttachInfo.mRecomputeGlobalAttributes) { 1277 //Log.i(mTag, "Computing view hierarchy attributes!"); 1278 mAttachInfo.mRecomputeGlobalAttributes = false; 1279 boolean oldScreenOn = mAttachInfo.mKeepScreenOn; 1280 mAttachInfo.mKeepScreenOn = false; 1281 mAttachInfo.mSystemUiVisibility = 0; 1282 mAttachInfo.mHasSystemUiListeners = false; 1283 mView.dispatchCollectViewAttributes(mAttachInfo, 0); 1284 mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility; 1285 WindowManager.LayoutParams params = mWindowAttributes; 1286 mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params); 1287 if (mAttachInfo.mKeepScreenOn != oldScreenOn 1288 || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1289 || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1290 applyKeepScreenOnFlag(params); 1291 params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1292 params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners; 1293 mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility); 1294 return true; 1295 } 1296 } 1297 return false; 1298 } 1299 1300 private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) { 1301 int vis = 0; 1302 // Translucent decor window flags imply stable system ui visibility. 1303 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) { 1304 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; 1305 } 1306 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) { 1307 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 1308 } 1309 return vis; 1310 } 1311 1312 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1313 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1314 int childWidthMeasureSpec; 1315 int childHeightMeasureSpec; 1316 boolean windowSizeMayChange = false; 1317 1318 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(mTag, 1319 "Measuring " + host + " in display " + desiredWindowWidth 1320 + "x" + desiredWindowHeight + "..."); 1321 1322 boolean goodMeasure = false; 1323 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1324 // On large screens, we don't want to allow dialogs to just 1325 // stretch to fill the entire width of the screen to display 1326 // one line of text. First try doing the layout at a smaller 1327 // size to see if it will fit. 1328 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1329 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1330 int baseSize = 0; 1331 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1332 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1333 } 1334 if (DEBUG_DIALOG) Log.v(mTag, "Window " + mView + ": baseSize=" + baseSize 1335 + ", desiredWindowWidth=" + desiredWindowWidth); 1336 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1337 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1338 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1339 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1340 if (DEBUG_DIALOG) Log.v(mTag, "Window " + mView + ": measured (" 1341 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() 1342 + ") from width spec: " + MeasureSpec.toString(childWidthMeasureSpec) 1343 + " and height spec: " + MeasureSpec.toString(childHeightMeasureSpec)); 1344 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1345 goodMeasure = true; 1346 } else { 1347 // Didn't fit in that size... try expanding a bit. 1348 baseSize = (baseSize+desiredWindowWidth)/2; 1349 if (DEBUG_DIALOG) Log.v(mTag, "Window " + mView + ": next baseSize=" 1350 + baseSize); 1351 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1352 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1353 if (DEBUG_DIALOG) Log.v(mTag, "Window " + mView + ": measured (" 1354 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1355 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1356 if (DEBUG_DIALOG) Log.v(mTag, "Good!"); 1357 goodMeasure = true; 1358 } 1359 } 1360 } 1361 } 1362 1363 if (!goodMeasure) { 1364 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1365 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1366 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1367 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1368 windowSizeMayChange = true; 1369 } 1370 } 1371 1372 if (DBG) { 1373 System.out.println("======================================"); 1374 System.out.println("performTraversals -- after measure"); 1375 host.debug(); 1376 } 1377 1378 return windowSizeMayChange; 1379 } 1380 1381 /** 1382 * Modifies the input matrix such that it maps view-local coordinates to 1383 * on-screen coordinates. 1384 * 1385 * @param m input matrix to modify 1386 */ 1387 void transformMatrixToGlobal(Matrix m) { 1388 m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 1389 } 1390 1391 /** 1392 * Modifies the input matrix such that it maps on-screen coordinates to 1393 * view-local coordinates. 1394 * 1395 * @param m input matrix to modify 1396 */ 1397 void transformMatrixToLocal(Matrix m) { 1398 m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 1399 } 1400 1401 /* package */ WindowInsets getWindowInsets(boolean forceConstruct) { 1402 if (mLastWindowInsets == null || forceConstruct) { 1403 mDispatchContentInsets.set(mAttachInfo.mContentInsets); 1404 mDispatchStableInsets.set(mAttachInfo.mStableInsets); 1405 Rect contentInsets = mDispatchContentInsets; 1406 Rect stableInsets = mDispatchStableInsets; 1407 // For dispatch we preserve old logic, but for direct requests from Views we allow to 1408 // immediately use pending insets. 1409 if (!forceConstruct 1410 && (!mPendingContentInsets.equals(contentInsets) || 1411 !mPendingStableInsets.equals(stableInsets))) { 1412 contentInsets = mPendingContentInsets; 1413 stableInsets = mPendingStableInsets; 1414 } 1415 Rect outsets = mAttachInfo.mOutsets; 1416 if (outsets.left > 0 || outsets.top > 0 || outsets.right > 0 || outsets.bottom > 0) { 1417 contentInsets = new Rect(contentInsets.left + outsets.left, 1418 contentInsets.top + outsets.top, contentInsets.right + outsets.right, 1419 contentInsets.bottom + outsets.bottom); 1420 } 1421 mLastWindowInsets = new WindowInsets(contentInsets, 1422 null /* windowDecorInsets */, stableInsets, 1423 mContext.getResources().getConfiguration().isScreenRound(), 1424 mAttachInfo.mAlwaysConsumeNavBar); 1425 } 1426 return mLastWindowInsets; 1427 } 1428 1429 void dispatchApplyInsets(View host) { 1430 host.dispatchApplyWindowInsets(getWindowInsets(true /* forceConstruct */)); 1431 } 1432 1433 private static boolean shouldUseDisplaySize(final WindowManager.LayoutParams lp) { 1434 return lp.type == TYPE_STATUS_BAR_PANEL 1435 || lp.type == TYPE_INPUT_METHOD 1436 || lp.type == TYPE_VOLUME_OVERLAY; 1437 } 1438 1439 private int dipToPx(int dip) { 1440 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 1441 return (int) (displayMetrics.density * dip + 0.5f); 1442 } 1443 1444 private void performTraversals() { 1445 // cache mView since it is used so much below... 1446 final View host = mView; 1447 1448 if (DBG) { 1449 System.out.println("======================================"); 1450 System.out.println("performTraversals"); 1451 host.debug(); 1452 } 1453 1454 if (host == null || !mAdded) 1455 return; 1456 1457 mIsInTraversal = true; 1458 mWillDrawSoon = true; 1459 boolean windowSizeMayChange = false; 1460 boolean newSurface = false; 1461 boolean surfaceChanged = false; 1462 WindowManager.LayoutParams lp = mWindowAttributes; 1463 1464 int desiredWindowWidth; 1465 int desiredWindowHeight; 1466 1467 final int viewVisibility = getHostVisibility(); 1468 final boolean viewVisibilityChanged = !mFirst 1469 && (mViewVisibility != viewVisibility || mNewSurfaceNeeded); 1470 final boolean viewUserVisibilityChanged = !mFirst && 1471 ((mViewVisibility == View.VISIBLE) != (viewVisibility == View.VISIBLE)); 1472 1473 WindowManager.LayoutParams params = null; 1474 if (mWindowAttributesChanged) { 1475 mWindowAttributesChanged = false; 1476 surfaceChanged = true; 1477 params = lp; 1478 } 1479 CompatibilityInfo compatibilityInfo = 1480 mDisplay.getDisplayAdjustments().getCompatibilityInfo(); 1481 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1482 params = lp; 1483 mFullRedrawNeeded = true; 1484 mLayoutRequested = true; 1485 if (mLastInCompatMode) { 1486 params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1487 mLastInCompatMode = false; 1488 } else { 1489 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1490 mLastInCompatMode = true; 1491 } 1492 } 1493 1494 mWindowAttributesChangesFlag = 0; 1495 1496 Rect frame = mWinFrame; 1497 if (mFirst) { 1498 mFullRedrawNeeded = true; 1499 mLayoutRequested = true; 1500 1501 if (shouldUseDisplaySize(lp)) { 1502 // NOTE -- system code, won't try to do compat mode. 1503 Point size = new Point(); 1504 mDisplay.getRealSize(size); 1505 desiredWindowWidth = size.x; 1506 desiredWindowHeight = size.y; 1507 } else { 1508 Configuration config = mContext.getResources().getConfiguration(); 1509 desiredWindowWidth = dipToPx(config.screenWidthDp); 1510 desiredWindowHeight = dipToPx(config.screenHeightDp); 1511 } 1512 1513 // We used to use the following condition to choose 32 bits drawing caches: 1514 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1515 // However, windows are now always 32 bits by default, so choose 32 bits 1516 mAttachInfo.mUse32BitDrawingCache = true; 1517 mAttachInfo.mHasWindowFocus = false; 1518 mAttachInfo.mWindowVisibility = viewVisibility; 1519 mAttachInfo.mRecomputeGlobalAttributes = false; 1520 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1521 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1522 // Set the layout direction if it has not been set before (inherit is the default) 1523 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1524 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1525 } 1526 host.dispatchAttachedToWindow(mAttachInfo, 0); 1527 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1528 dispatchApplyInsets(host); 1529 //Log.i(mTag, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1530 1531 } else { 1532 desiredWindowWidth = frame.width(); 1533 desiredWindowHeight = frame.height(); 1534 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1535 if (DEBUG_ORIENTATION) Log.v(mTag, "View " + host + " resized to: " + frame); 1536 mFullRedrawNeeded = true; 1537 mLayoutRequested = true; 1538 windowSizeMayChange = true; 1539 } 1540 } 1541 1542 if (viewVisibilityChanged) { 1543 mAttachInfo.mWindowVisibility = viewVisibility; 1544 host.dispatchWindowVisibilityChanged(viewVisibility); 1545 if (viewUserVisibilityChanged) { 1546 host.dispatchVisibilityAggregated(viewVisibility == View.VISIBLE); 1547 } 1548 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1549 endDragResizing(); 1550 destroyHardwareResources(); 1551 } 1552 if (viewVisibility == View.GONE) { 1553 // After making a window gone, we will count it as being 1554 // shown for the first time the next time it gets focus. 1555 mHasHadWindowFocus = false; 1556 } 1557 } 1558 1559 // Non-visible windows can't hold accessibility focus. 1560 if (mAttachInfo.mWindowVisibility != View.VISIBLE) { 1561 host.clearAccessibilityFocus(); 1562 } 1563 1564 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1565 getRunQueue().executeActions(mAttachInfo.mHandler); 1566 1567 boolean insetsChanged = false; 1568 1569 boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw); 1570 if (layoutRequested) { 1571 1572 final Resources res = mView.getContext().getResources(); 1573 1574 if (mFirst) { 1575 // make sure touch mode code executes by setting cached value 1576 // to opposite of the added touch mode. 1577 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1578 ensureTouchModeLocally(mAddedTouchMode); 1579 } else { 1580 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1581 insetsChanged = true; 1582 } 1583 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1584 insetsChanged = true; 1585 } 1586 if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) { 1587 insetsChanged = true; 1588 } 1589 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1590 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1591 if (DEBUG_LAYOUT) Log.v(mTag, "Visible insets changing to: " 1592 + mAttachInfo.mVisibleInsets); 1593 } 1594 if (!mPendingOutsets.equals(mAttachInfo.mOutsets)) { 1595 insetsChanged = true; 1596 } 1597 if (mPendingAlwaysConsumeNavBar != mAttachInfo.mAlwaysConsumeNavBar) { 1598 insetsChanged = true; 1599 } 1600 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1601 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1602 windowSizeMayChange = true; 1603 1604 if (shouldUseDisplaySize(lp)) { 1605 // NOTE -- system code, won't try to do compat mode. 1606 Point size = new Point(); 1607 mDisplay.getRealSize(size); 1608 desiredWindowWidth = size.x; 1609 desiredWindowHeight = size.y; 1610 } else { 1611 Configuration config = res.getConfiguration(); 1612 desiredWindowWidth = dipToPx(config.screenWidthDp); 1613 desiredWindowHeight = dipToPx(config.screenHeightDp); 1614 } 1615 } 1616 } 1617 1618 // Ask host how big it wants to be 1619 windowSizeMayChange |= measureHierarchy(host, lp, res, 1620 desiredWindowWidth, desiredWindowHeight); 1621 } 1622 1623 if (collectViewAttributes()) { 1624 params = lp; 1625 } 1626 if (mAttachInfo.mForceReportNewAttributes) { 1627 mAttachInfo.mForceReportNewAttributes = false; 1628 params = lp; 1629 } 1630 1631 if (mFirst || mAttachInfo.mViewVisibilityChanged) { 1632 mAttachInfo.mViewVisibilityChanged = false; 1633 int resizeMode = mSoftInputMode & 1634 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1635 // If we are in auto resize mode, then we need to determine 1636 // what mode to use now. 1637 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1638 final int N = mAttachInfo.mScrollContainers.size(); 1639 for (int i=0; i<N; i++) { 1640 if (mAttachInfo.mScrollContainers.get(i).isShown()) { 1641 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1642 } 1643 } 1644 if (resizeMode == 0) { 1645 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1646 } 1647 if ((lp.softInputMode & 1648 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1649 lp.softInputMode = (lp.softInputMode & 1650 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1651 resizeMode; 1652 params = lp; 1653 } 1654 } 1655 } 1656 1657 if (params != null) { 1658 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1659 if (!PixelFormat.formatHasAlpha(params.format)) { 1660 params.format = PixelFormat.TRANSLUCENT; 1661 } 1662 } 1663 mAttachInfo.mOverscanRequested = (params.flags 1664 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1665 } 1666 1667 if (mApplyInsetsRequested) { 1668 mApplyInsetsRequested = false; 1669 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1670 dispatchApplyInsets(host); 1671 if (mLayoutRequested) { 1672 // Short-circuit catching a new layout request here, so 1673 // we don't need to go through two layout passes when things 1674 // change due to fitting system windows, which can happen a lot. 1675 windowSizeMayChange |= measureHierarchy(host, lp, 1676 mView.getContext().getResources(), 1677 desiredWindowWidth, desiredWindowHeight); 1678 } 1679 } 1680 1681 if (layoutRequested) { 1682 // Clear this now, so that if anything requests a layout in the 1683 // rest of this function we will catch it and re-run a full 1684 // layout pass. 1685 mLayoutRequested = false; 1686 } 1687 1688 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1689 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1690 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1691 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1692 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1693 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1694 windowShouldResize |= mDragResizing && mResizeMode == RESIZE_MODE_FREEFORM; 1695 1696 // If the activity was just relaunched, it might have unfrozen the task bounds (while 1697 // relaunching), so we need to force a call into window manager to pick up the latest 1698 // bounds. 1699 windowShouldResize |= mActivityRelaunched; 1700 1701 // Determine whether to compute insets. 1702 // If there are no inset listeners remaining then we may still need to compute 1703 // insets in case the old insets were non-empty and must be reset. 1704 final boolean computesInternalInsets = 1705 mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() 1706 || mAttachInfo.mHasNonEmptyGivenInternalInsets; 1707 1708 boolean insetsPending = false; 1709 int relayoutResult = 0; 1710 boolean updatedConfiguration = false; 1711 1712 final int surfaceGenerationId = mSurface.getGenerationId(); 1713 1714 final boolean isViewVisible = viewVisibility == View.VISIBLE; 1715 if (mFirst || windowShouldResize || insetsChanged || 1716 viewVisibilityChanged || params != null || mForceNextWindowRelayout) { 1717 mForceNextWindowRelayout = false; 1718 1719 if (isViewVisible) { 1720 // If this window is giving internal insets to the window 1721 // manager, and it is being added or changing its visibility, 1722 // then we want to first give the window manager "fake" 1723 // insets to cause it to effectively ignore the content of 1724 // the window during layout. This avoids it briefly causing 1725 // other windows to resize/move based on the raw frame of the 1726 // window, waiting until we can finish laying out this window 1727 // and get back to the window manager with the ultimately 1728 // computed insets. 1729 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1730 } 1731 1732 if (mSurfaceHolder != null) { 1733 mSurfaceHolder.mSurfaceLock.lock(); 1734 mDrawingAllowed = true; 1735 } 1736 1737 boolean hwInitialized = false; 1738 boolean contentInsetsChanged = false; 1739 boolean hadSurface = mSurface.isValid(); 1740 1741 try { 1742 if (DEBUG_LAYOUT) { 1743 Log.i(mTag, "host=w:" + host.getMeasuredWidth() + ", h:" + 1744 host.getMeasuredHeight() + ", params=" + params); 1745 } 1746 1747 if (mAttachInfo.mHardwareRenderer != null) { 1748 // relayoutWindow may decide to destroy mSurface. As that decision 1749 // happens in WindowManager service, we need to be defensive here 1750 // and stop using the surface in case it gets destroyed. 1751 if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) { 1752 // Animations were running so we need to push a frame 1753 // to resume them 1754 mDirty.set(0, 0, mWidth, mHeight); 1755 } 1756 mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED); 1757 } 1758 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1759 1760 if (DEBUG_LAYOUT) Log.v(mTag, "relayout: frame=" + frame.toShortString() 1761 + " overscan=" + mPendingOverscanInsets.toShortString() 1762 + " content=" + mPendingContentInsets.toShortString() 1763 + " visible=" + mPendingVisibleInsets.toShortString() 1764 + " visible=" + mPendingStableInsets.toShortString() 1765 + " outsets=" + mPendingOutsets.toShortString() 1766 + " surface=" + mSurface); 1767 1768 if (mPendingConfiguration.seq != 0) { 1769 if (DEBUG_CONFIGURATION) Log.v(mTag, "Visible with new config: " 1770 + mPendingConfiguration); 1771 updateConfiguration(new Configuration(mPendingConfiguration), !mFirst); 1772 mPendingConfiguration.seq = 0; 1773 updatedConfiguration = true; 1774 } 1775 1776 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1777 mAttachInfo.mOverscanInsets); 1778 contentInsetsChanged = !mPendingContentInsets.equals( 1779 mAttachInfo.mContentInsets); 1780 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1781 mAttachInfo.mVisibleInsets); 1782 final boolean stableInsetsChanged = !mPendingStableInsets.equals( 1783 mAttachInfo.mStableInsets); 1784 final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets); 1785 final boolean surfaceSizeChanged = (relayoutResult 1786 & WindowManagerGlobal.RELAYOUT_RES_SURFACE_RESIZED) != 0; 1787 final boolean alwaysConsumeNavBarChanged = 1788 mPendingAlwaysConsumeNavBar != mAttachInfo.mAlwaysConsumeNavBar; 1789 if (contentInsetsChanged) { 1790 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1791 if (DEBUG_LAYOUT) Log.v(mTag, "Content insets changing to: " 1792 + mAttachInfo.mContentInsets); 1793 } 1794 if (overscanInsetsChanged) { 1795 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1796 if (DEBUG_LAYOUT) Log.v(mTag, "Overscan insets changing to: " 1797 + mAttachInfo.mOverscanInsets); 1798 // Need to relayout with content insets. 1799 contentInsetsChanged = true; 1800 } 1801 if (stableInsetsChanged) { 1802 mAttachInfo.mStableInsets.set(mPendingStableInsets); 1803 if (DEBUG_LAYOUT) Log.v(mTag, "Decor insets changing to: " 1804 + mAttachInfo.mStableInsets); 1805 // Need to relayout with content insets. 1806 contentInsetsChanged = true; 1807 } 1808 if (alwaysConsumeNavBarChanged) { 1809 mAttachInfo.mAlwaysConsumeNavBar = mPendingAlwaysConsumeNavBar; 1810 contentInsetsChanged = true; 1811 } 1812 if (contentInsetsChanged || mLastSystemUiVisibility != 1813 mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested 1814 || mLastOverscanRequested != mAttachInfo.mOverscanRequested 1815 || outsetsChanged) { 1816 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1817 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1818 mAttachInfo.mOutsets.set(mPendingOutsets); 1819 mApplyInsetsRequested = false; 1820 dispatchApplyInsets(host); 1821 } 1822 if (visibleInsetsChanged) { 1823 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1824 if (DEBUG_LAYOUT) Log.v(mTag, "Visible insets changing to: " 1825 + mAttachInfo.mVisibleInsets); 1826 } 1827 1828 if (!hadSurface) { 1829 if (mSurface.isValid()) { 1830 // If we are creating a new surface, then we need to 1831 // completely redraw it. Also, when we get to the 1832 // point of drawing it we will hold off and schedule 1833 // a new traversal instead. This is so we can tell the 1834 // window manager about all of the windows being displayed 1835 // before actually drawing them, so it can display then 1836 // all at once. 1837 newSurface = true; 1838 mFullRedrawNeeded = true; 1839 mPreviousTransparentRegion.setEmpty(); 1840 1841 // Only initialize up-front if transparent regions are not 1842 // requested, otherwise defer to see if the entire window 1843 // will be transparent 1844 if (mAttachInfo.mHardwareRenderer != null) { 1845 try { 1846 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1847 mSurface); 1848 if (hwInitialized && (host.mPrivateFlags 1849 & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) == 0) { 1850 // Don't pre-allocate if transparent regions 1851 // are requested as they may not be needed 1852 mSurface.allocateBuffers(); 1853 } 1854 } catch (OutOfResourcesException e) { 1855 handleOutOfResourcesException(e); 1856 return; 1857 } 1858 } 1859 } 1860 } else if (!mSurface.isValid()) { 1861 // If the surface has been removed, then reset the scroll 1862 // positions. 1863 if (mLastScrolledFocus != null) { 1864 mLastScrolledFocus.clear(); 1865 } 1866 mScrollY = mCurScrollY = 0; 1867 if (mView instanceof RootViewSurfaceTaker) { 1868 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 1869 } 1870 if (mScroller != null) { 1871 mScroller.abortAnimation(); 1872 } 1873 // Our surface is gone 1874 if (mAttachInfo.mHardwareRenderer != null && 1875 mAttachInfo.mHardwareRenderer.isEnabled()) { 1876 mAttachInfo.mHardwareRenderer.destroy(); 1877 } 1878 } else if ((surfaceGenerationId != mSurface.getGenerationId() 1879 || surfaceSizeChanged) 1880 && mSurfaceHolder == null 1881 && mAttachInfo.mHardwareRenderer != null) { 1882 mFullRedrawNeeded = true; 1883 try { 1884 // Need to do updateSurface (which leads to CanvasContext::setSurface and 1885 // re-create the EGLSurface) if either the Surface changed (as indicated by 1886 // generation id), or WindowManager changed the surface size. The latter is 1887 // because on some chips, changing the consumer side's BufferQueue size may 1888 // not take effect immediately unless we create a new EGLSurface. 1889 // Note that frame size change doesn't always imply surface size change (eg. 1890 // drag resizing uses fullscreen surface), need to check surfaceSizeChanged 1891 // flag from WindowManager. 1892 mAttachInfo.mHardwareRenderer.updateSurface(mSurface); 1893 } catch (OutOfResourcesException e) { 1894 handleOutOfResourcesException(e); 1895 return; 1896 } 1897 } 1898 1899 final boolean freeformResizing = (relayoutResult 1900 & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING_FREEFORM) != 0; 1901 final boolean dockedResizing = (relayoutResult 1902 & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING_DOCKED) != 0; 1903 final boolean dragResizing = freeformResizing || dockedResizing; 1904 if (mDragResizing != dragResizing) { 1905 if (dragResizing) { 1906 mResizeMode = freeformResizing 1907 ? RESIZE_MODE_FREEFORM 1908 : RESIZE_MODE_DOCKED_DIVIDER; 1909 startDragResizing(mPendingBackDropFrame, 1910 mWinFrame.equals(mPendingBackDropFrame), mPendingVisibleInsets, 1911 mPendingStableInsets, mResizeMode); 1912 } else { 1913 // We shouldn't come here, but if we come we should end the resize. 1914 endDragResizing(); 1915 } 1916 } 1917 if (!USE_MT_RENDERER) { 1918 if (dragResizing) { 1919 mCanvasOffsetX = mWinFrame.left; 1920 mCanvasOffsetY = mWinFrame.top; 1921 } else { 1922 mCanvasOffsetX = mCanvasOffsetY = 0; 1923 } 1924 } 1925 } catch (RemoteException e) { 1926 } 1927 1928 if (DEBUG_ORIENTATION) Log.v( 1929 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1930 1931 mAttachInfo.mWindowLeft = frame.left; 1932 mAttachInfo.mWindowTop = frame.top; 1933 1934 // !!FIXME!! This next section handles the case where we did not get the 1935 // window size we asked for. We should avoid this by getting a maximum size from 1936 // the window session beforehand. 1937 if (mWidth != frame.width() || mHeight != frame.height()) { 1938 mWidth = frame.width(); 1939 mHeight = frame.height(); 1940 } 1941 1942 if (mSurfaceHolder != null) { 1943 // The app owns the surface; tell it about what is going on. 1944 if (mSurface.isValid()) { 1945 // XXX .copyFrom() doesn't work! 1946 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1947 mSurfaceHolder.mSurface = mSurface; 1948 } 1949 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1950 mSurfaceHolder.mSurfaceLock.unlock(); 1951 if (mSurface.isValid()) { 1952 if (!hadSurface) { 1953 mSurfaceHolder.ungetCallbacks(); 1954 1955 mIsCreating = true; 1956 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1957 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1958 if (callbacks != null) { 1959 for (SurfaceHolder.Callback c : callbacks) { 1960 c.surfaceCreated(mSurfaceHolder); 1961 } 1962 } 1963 surfaceChanged = true; 1964 } 1965 if (surfaceChanged || surfaceGenerationId != mSurface.getGenerationId()) { 1966 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1967 lp.format, mWidth, mHeight); 1968 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1969 if (callbacks != null) { 1970 for (SurfaceHolder.Callback c : callbacks) { 1971 c.surfaceChanged(mSurfaceHolder, lp.format, 1972 mWidth, mHeight); 1973 } 1974 } 1975 } 1976 mIsCreating = false; 1977 } else if (hadSurface) { 1978 mSurfaceHolder.ungetCallbacks(); 1979 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1980 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1981 if (callbacks != null) { 1982 for (SurfaceHolder.Callback c : callbacks) { 1983 c.surfaceDestroyed(mSurfaceHolder); 1984 } 1985 } 1986 mSurfaceHolder.mSurfaceLock.lock(); 1987 try { 1988 mSurfaceHolder.mSurface = new Surface(); 1989 } finally { 1990 mSurfaceHolder.mSurfaceLock.unlock(); 1991 } 1992 } 1993 } 1994 1995 final ThreadedRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 1996 if (hardwareRenderer != null && hardwareRenderer.isEnabled()) { 1997 if (hwInitialized 1998 || mWidth != hardwareRenderer.getWidth() 1999 || mHeight != hardwareRenderer.getHeight() 2000 || mNeedsHwRendererSetup) { 2001 hardwareRenderer.setup(mWidth, mHeight, mAttachInfo, 2002 mWindowAttributes.surfaceInsets); 2003 mNeedsHwRendererSetup = false; 2004 } 2005 } 2006 2007 if (!mStopped || mReportNextDraw) { 2008 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 2009 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 2010 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 2011 || mHeight != host.getMeasuredHeight() || contentInsetsChanged || 2012 updatedConfiguration) { 2013 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 2014 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 2015 2016 if (DEBUG_LAYOUT) Log.v(mTag, "Ooops, something changed! mWidth=" 2017 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 2018 + " mHeight=" + mHeight 2019 + " measuredHeight=" + host.getMeasuredHeight() 2020 + " coveredInsetsChanged=" + contentInsetsChanged); 2021 2022 // Ask host how big it wants to be 2023 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 2024 2025 // Implementation of weights from WindowManager.LayoutParams 2026 // We just grow the dimensions as needed and re-measure if 2027 // needs be 2028 int width = host.getMeasuredWidth(); 2029 int height = host.getMeasuredHeight(); 2030 boolean measureAgain = false; 2031 2032 if (lp.horizontalWeight > 0.0f) { 2033 width += (int) ((mWidth - width) * lp.horizontalWeight); 2034 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 2035 MeasureSpec.EXACTLY); 2036 measureAgain = true; 2037 } 2038 if (lp.verticalWeight > 0.0f) { 2039 height += (int) ((mHeight - height) * lp.verticalWeight); 2040 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 2041 MeasureSpec.EXACTLY); 2042 measureAgain = true; 2043 } 2044 2045 if (measureAgain) { 2046 if (DEBUG_LAYOUT) Log.v(mTag, 2047 "And hey let's measure once more: width=" + width 2048 + " height=" + height); 2049 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 2050 } 2051 2052 layoutRequested = true; 2053 } 2054 } 2055 } else { 2056 // Not the first pass and no window/insets/visibility change but the window 2057 // may have moved and we need check that and if so to update the left and right 2058 // in the attach info. We translate only the window frame since on window move 2059 // the window manager tells us only for the new frame but the insets are the 2060 // same and we do not want to translate them more than once. 2061 maybeHandleWindowMove(frame); 2062 } 2063 2064 final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw); 2065 boolean triggerGlobalLayoutListener = didLayout 2066 || mAttachInfo.mRecomputeGlobalAttributes; 2067 if (didLayout) { 2068 performLayout(lp, mWidth, mHeight); 2069 2070 // By this point all views have been sized and positioned 2071 // We can compute the transparent area 2072 2073 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 2074 // start out transparent 2075 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 2076 host.getLocationInWindow(mTmpLocation); 2077 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 2078 mTmpLocation[0] + host.mRight - host.mLeft, 2079 mTmpLocation[1] + host.mBottom - host.mTop); 2080 2081 host.gatherTransparentRegion(mTransparentRegion); 2082 if (mTranslator != null) { 2083 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 2084 } 2085 2086 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 2087 mPreviousTransparentRegion.set(mTransparentRegion); 2088 mFullRedrawNeeded = true; 2089 // reconfigure window manager 2090 try { 2091 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 2092 } catch (RemoteException e) { 2093 } 2094 } 2095 } 2096 2097 if (DBG) { 2098 System.out.println("======================================"); 2099 System.out.println("performTraversals -- after setFrame"); 2100 host.debug(); 2101 } 2102 } 2103 2104 if (triggerGlobalLayoutListener) { 2105 mAttachInfo.mRecomputeGlobalAttributes = false; 2106 mAttachInfo.mTreeObserver.dispatchOnGlobalLayout(); 2107 } 2108 2109 if (computesInternalInsets) { 2110 // Clear the original insets. 2111 final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets; 2112 insets.reset(); 2113 2114 // Compute new insets in place. 2115 mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 2116 mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty(); 2117 2118 // Tell the window manager. 2119 if (insetsPending || !mLastGivenInsets.equals(insets)) { 2120 mLastGivenInsets.set(insets); 2121 2122 // Translate insets to screen coordinates if needed. 2123 final Rect contentInsets; 2124 final Rect visibleInsets; 2125 final Region touchableRegion; 2126 if (mTranslator != null) { 2127 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 2128 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 2129 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 2130 } else { 2131 contentInsets = insets.contentInsets; 2132 visibleInsets = insets.visibleInsets; 2133 touchableRegion = insets.touchableRegion; 2134 } 2135 2136 try { 2137 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 2138 contentInsets, visibleInsets, touchableRegion); 2139 } catch (RemoteException e) { 2140 } 2141 } 2142 } 2143 2144 if (mFirst) { 2145 // handle first focus request 2146 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "First: mView.hasFocus()=" 2147 + mView.hasFocus()); 2148 if (mView != null) { 2149 if (!mView.hasFocus()) { 2150 mView.requestFocus(View.FOCUS_FORWARD); 2151 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "First: requested focused view=" 2152 + mView.findFocus()); 2153 } else { 2154 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "First: existing focused view=" 2155 + mView.findFocus()); 2156 } 2157 } 2158 } 2159 2160 final boolean changedVisibility = (viewVisibilityChanged || mFirst) && isViewVisible; 2161 final boolean hasWindowFocus = mAttachInfo.mHasWindowFocus && isViewVisible; 2162 final boolean regainedFocus = hasWindowFocus && mLostWindowFocus; 2163 if (regainedFocus) { 2164 mLostWindowFocus = false; 2165 } else if (!hasWindowFocus && mHadWindowFocus) { 2166 mLostWindowFocus = true; 2167 } 2168 2169 if (changedVisibility || regainedFocus) { 2170 // Toasts are presented as notifications - don't present them as windows as well 2171 boolean isToast = (mWindowAttributes == null) ? false 2172 : (mWindowAttributes.type == WindowManager.LayoutParams.TYPE_TOAST); 2173 if (!isToast) { 2174 host.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2175 } 2176 } 2177 2178 mFirst = false; 2179 mWillDrawSoon = false; 2180 mNewSurfaceNeeded = false; 2181 mActivityRelaunched = false; 2182 mViewVisibility = viewVisibility; 2183 mHadWindowFocus = hasWindowFocus; 2184 2185 if (hasWindowFocus && !isInLocalFocusMode()) { 2186 final boolean imTarget = WindowManager.LayoutParams 2187 .mayUseInputMethod(mWindowAttributes.flags); 2188 if (imTarget != mLastWasImTarget) { 2189 mLastWasImTarget = imTarget; 2190 InputMethodManager imm = InputMethodManager.peekInstance(); 2191 if (imm != null && imTarget) { 2192 imm.onPreWindowFocus(mView, hasWindowFocus); 2193 imm.onPostWindowFocus(mView, mView.findFocus(), 2194 mWindowAttributes.softInputMode, 2195 !mHasHadWindowFocus, mWindowAttributes.flags); 2196 } 2197 } 2198 } 2199 2200 // Remember if we must report the next draw. 2201 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 2202 mReportNextDraw = true; 2203 } 2204 2205 boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || !isViewVisible; 2206 2207 if (!cancelDraw && !newSurface) { 2208 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2209 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2210 mPendingTransitions.get(i).startChangingAnimations(); 2211 } 2212 mPendingTransitions.clear(); 2213 } 2214 2215 performDraw(); 2216 } else { 2217 if (isViewVisible) { 2218 // Try again 2219 scheduleTraversals(); 2220 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2221 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2222 mPendingTransitions.get(i).endChangingAnimations(); 2223 } 2224 mPendingTransitions.clear(); 2225 } 2226 } 2227 2228 mIsInTraversal = false; 2229 } 2230 2231 private void maybeHandleWindowMove(Rect frame) { 2232 2233 // TODO: Well, we are checking whether the frame has changed similarly 2234 // to how this is done for the insets. This is however incorrect since 2235 // the insets and the frame are translated. For example, the old frame 2236 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 2237 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 2238 // true since we are comparing a not translated value to a translated one. 2239 // This scenario is rare but we may want to fix that. 2240 2241 final boolean windowMoved = mAttachInfo.mWindowLeft != frame.left 2242 || mAttachInfo.mWindowTop != frame.top; 2243 if (windowMoved) { 2244 if (mTranslator != null) { 2245 mTranslator.translateRectInScreenToAppWinFrame(frame); 2246 } 2247 mAttachInfo.mWindowLeft = frame.left; 2248 mAttachInfo.mWindowTop = frame.top; 2249 } 2250 if (windowMoved || mAttachInfo.mNeedsUpdateLightCenter) { 2251 // Update the light position for the new offsets. 2252 if (mAttachInfo.mHardwareRenderer != null) { 2253 mAttachInfo.mHardwareRenderer.setLightCenter(mAttachInfo); 2254 } 2255 mAttachInfo.mNeedsUpdateLightCenter = false; 2256 } 2257 } 2258 2259 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 2260 Log.e(mTag, "OutOfResourcesException initializing HW surface", e); 2261 try { 2262 if (!mWindowSession.outOfMemory(mWindow) && 2263 Process.myUid() != Process.SYSTEM_UID) { 2264 Slog.w(mTag, "No processes killed for memory; killing self"); 2265 Process.killProcess(Process.myPid()); 2266 } 2267 } catch (RemoteException ex) { 2268 } 2269 mLayoutRequested = true; // ask wm for a new surface next time. 2270 } 2271 2272 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 2273 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 2274 try { 2275 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 2276 } finally { 2277 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2278 } 2279 } 2280 2281 /** 2282 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 2283 * is currently undergoing a layout pass. 2284 * 2285 * @return whether the view hierarchy is currently undergoing a layout pass 2286 */ 2287 boolean isInLayout() { 2288 return mInLayout; 2289 } 2290 2291 /** 2292 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 2293 * undergoing a layout pass. requestLayout() should not generally be called during layout, 2294 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 2295 * all children in that container hierarchy are measured and laid out at the end of the layout 2296 * pass for that container). If requestLayout() is called anyway, we handle it correctly 2297 * by registering all requesters during a frame as it proceeds. At the end of the frame, 2298 * we check all of those views to see if any still have pending layout requests, which 2299 * indicates that they were not correctly handled by their container hierarchy. If that is 2300 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 2301 * to blank containers, and force a second request/measure/layout pass in this frame. If 2302 * more requestLayout() calls are received during that second layout pass, we post those 2303 * requests to the next frame to avoid possible infinite loops. 2304 * 2305 * <p>The return value from this method indicates whether the request should proceed 2306 * (if it is a request during the first layout pass) or should be skipped and posted to the 2307 * next frame (if it is a request during the second layout pass).</p> 2308 * 2309 * @param view the view that requested the layout. 2310 * 2311 * @return true if request should proceed, false otherwise. 2312 */ 2313 boolean requestLayoutDuringLayout(final View view) { 2314 if (view.mParent == null || view.mAttachInfo == null) { 2315 // Would not normally trigger another layout, so just let it pass through as usual 2316 return true; 2317 } 2318 if (!mLayoutRequesters.contains(view)) { 2319 mLayoutRequesters.add(view); 2320 } 2321 if (!mHandlingLayoutInLayoutRequest) { 2322 // Let the request proceed normally; it will be processed in a second layout pass 2323 // if necessary 2324 return true; 2325 } else { 2326 // Don't let the request proceed during the second layout pass. 2327 // It will post to the next frame instead. 2328 return false; 2329 } 2330 } 2331 2332 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 2333 int desiredWindowHeight) { 2334 mLayoutRequested = false; 2335 mScrollMayChange = true; 2336 mInLayout = true; 2337 2338 final View host = mView; 2339 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 2340 Log.v(mTag, "Laying out " + host + " to (" + 2341 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 2342 } 2343 2344 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2345 try { 2346 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2347 2348 mInLayout = false; 2349 int numViewsRequestingLayout = mLayoutRequesters.size(); 2350 if (numViewsRequestingLayout > 0) { 2351 // requestLayout() was called during layout. 2352 // If no layout-request flags are set on the requesting views, there is no problem. 2353 // If some requests are still pending, then we need to clear those flags and do 2354 // a full request/measure/layout pass to handle this situation. 2355 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2356 false); 2357 if (validLayoutRequesters != null) { 2358 // Set this flag to indicate that any further requests are happening during 2359 // the second pass, which may result in posting those requests to the next 2360 // frame instead 2361 mHandlingLayoutInLayoutRequest = true; 2362 2363 // Process fresh layout requests, then measure and layout 2364 int numValidRequests = validLayoutRequesters.size(); 2365 for (int i = 0; i < numValidRequests; ++i) { 2366 final View view = validLayoutRequesters.get(i); 2367 Log.w("View", "requestLayout() improperly called by " + view + 2368 " during layout: running second layout pass"); 2369 view.requestLayout(); 2370 } 2371 measureHierarchy(host, lp, mView.getContext().getResources(), 2372 desiredWindowWidth, desiredWindowHeight); 2373 mInLayout = true; 2374 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2375 2376 mHandlingLayoutInLayoutRequest = false; 2377 2378 // Check the valid requests again, this time without checking/clearing the 2379 // layout flags, since requests happening during the second pass get noop'd 2380 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2381 if (validLayoutRequesters != null) { 2382 final ArrayList<View> finalRequesters = validLayoutRequesters; 2383 // Post second-pass requests to the next frame 2384 getRunQueue().post(new Runnable() { 2385 @Override 2386 public void run() { 2387 int numValidRequests = finalRequesters.size(); 2388 for (int i = 0; i < numValidRequests; ++i) { 2389 final View view = finalRequesters.get(i); 2390 Log.w("View", "requestLayout() improperly called by " + view + 2391 " during second layout pass: posting in next frame"); 2392 view.requestLayout(); 2393 } 2394 } 2395 }); 2396 } 2397 } 2398 2399 } 2400 } finally { 2401 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2402 } 2403 mInLayout = false; 2404 } 2405 2406 /** 2407 * This method is called during layout when there have been calls to requestLayout() during 2408 * layout. It walks through the list of views that requested layout to determine which ones 2409 * still need it, based on visibility in the hierarchy and whether they have already been 2410 * handled (as is usually the case with ListView children). 2411 * 2412 * @param layoutRequesters The list of views that requested layout during layout 2413 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2414 * If so, the FORCE_LAYOUT flag was not set on requesters. 2415 * @return A list of the actual views that still need to be laid out. 2416 */ 2417 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2418 boolean secondLayoutRequests) { 2419 2420 int numViewsRequestingLayout = layoutRequesters.size(); 2421 ArrayList<View> validLayoutRequesters = null; 2422 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2423 View view = layoutRequesters.get(i); 2424 if (view != null && view.mAttachInfo != null && view.mParent != null && 2425 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2426 View.PFLAG_FORCE_LAYOUT)) { 2427 boolean gone = false; 2428 View parent = view; 2429 // Only trigger new requests for views in a non-GONE hierarchy 2430 while (parent != null) { 2431 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2432 gone = true; 2433 break; 2434 } 2435 if (parent.mParent instanceof View) { 2436 parent = (View) parent.mParent; 2437 } else { 2438 parent = null; 2439 } 2440 } 2441 if (!gone) { 2442 if (validLayoutRequesters == null) { 2443 validLayoutRequesters = new ArrayList<View>(); 2444 } 2445 validLayoutRequesters.add(view); 2446 } 2447 } 2448 } 2449 if (!secondLayoutRequests) { 2450 // If we're checking the layout flags, then we need to clean them up also 2451 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2452 View view = layoutRequesters.get(i); 2453 while (view != null && 2454 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2455 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2456 if (view.mParent instanceof View) { 2457 view = (View) view.mParent; 2458 } else { 2459 view = null; 2460 } 2461 } 2462 } 2463 } 2464 layoutRequesters.clear(); 2465 return validLayoutRequesters; 2466 } 2467 2468 @Override 2469 public void requestTransparentRegion(View child) { 2470 // the test below should not fail unless someone is messing with us 2471 checkThread(); 2472 if (mView == child) { 2473 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2474 // Need to make sure we re-evaluate the window attributes next 2475 // time around, to ensure the window has the correct format. 2476 mWindowAttributesChanged = true; 2477 mWindowAttributesChangesFlag = 0; 2478 requestLayout(); 2479 } 2480 } 2481 2482 /** 2483 * Figures out the measure spec for the root view in a window based on it's 2484 * layout params. 2485 * 2486 * @param windowSize 2487 * The available width or height of the window 2488 * 2489 * @param rootDimension 2490 * The layout params for one dimension (width or height) of the 2491 * window. 2492 * 2493 * @return The measure spec to use to measure the root view. 2494 */ 2495 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2496 int measureSpec; 2497 switch (rootDimension) { 2498 2499 case ViewGroup.LayoutParams.MATCH_PARENT: 2500 // Window can't resize. Force root view to be windowSize. 2501 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2502 break; 2503 case ViewGroup.LayoutParams.WRAP_CONTENT: 2504 // Window can resize. Set max size for root view. 2505 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2506 break; 2507 default: 2508 // Window wants to be an exact size. Force root view to be that size. 2509 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2510 break; 2511 } 2512 return measureSpec; 2513 } 2514 2515 int mHardwareXOffset; 2516 int mHardwareYOffset; 2517 2518 @Override 2519 public void onHardwarePreDraw(DisplayListCanvas canvas) { 2520 canvas.translate(-mHardwareXOffset, -mHardwareYOffset); 2521 } 2522 2523 @Override 2524 public void onHardwarePostDraw(DisplayListCanvas canvas) { 2525 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2526 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 2527 mWindowCallbacks.get(i).onPostDraw(canvas); 2528 } 2529 } 2530 2531 /** 2532 * @hide 2533 */ 2534 void outputDisplayList(View view) { 2535 view.mRenderNode.output(); 2536 if (mAttachInfo.mHardwareRenderer != null) { 2537 ((ThreadedRenderer)mAttachInfo.mHardwareRenderer).serializeDisplayListTree(); 2538 } 2539 } 2540 2541 /** 2542 * @see #PROPERTY_PROFILE_RENDERING 2543 */ 2544 private void profileRendering(boolean enabled) { 2545 if (mProfileRendering) { 2546 mRenderProfilingEnabled = enabled; 2547 2548 if (mRenderProfiler != null) { 2549 mChoreographer.removeFrameCallback(mRenderProfiler); 2550 } 2551 if (mRenderProfilingEnabled) { 2552 if (mRenderProfiler == null) { 2553 mRenderProfiler = new Choreographer.FrameCallback() { 2554 @Override 2555 public void doFrame(long frameTimeNanos) { 2556 mDirty.set(0, 0, mWidth, mHeight); 2557 scheduleTraversals(); 2558 if (mRenderProfilingEnabled) { 2559 mChoreographer.postFrameCallback(mRenderProfiler); 2560 } 2561 } 2562 }; 2563 } 2564 mChoreographer.postFrameCallback(mRenderProfiler); 2565 } else { 2566 mRenderProfiler = null; 2567 } 2568 } 2569 } 2570 2571 /** 2572 * Called from draw() when DEBUG_FPS is enabled 2573 */ 2574 private void trackFPS() { 2575 // Tracks frames per second drawn. First value in a series of draws may be bogus 2576 // because it down not account for the intervening idle time 2577 long nowTime = System.currentTimeMillis(); 2578 if (mFpsStartTime < 0) { 2579 mFpsStartTime = mFpsPrevTime = nowTime; 2580 mFpsNumFrames = 0; 2581 } else { 2582 ++mFpsNumFrames; 2583 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2584 long frameTime = nowTime - mFpsPrevTime; 2585 long totalTime = nowTime - mFpsStartTime; 2586 Log.v(mTag, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2587 mFpsPrevTime = nowTime; 2588 if (totalTime > 1000) { 2589 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2590 Log.v(mTag, "0x" + thisHash + "\tFPS:\t" + fps); 2591 mFpsStartTime = nowTime; 2592 mFpsNumFrames = 0; 2593 } 2594 } 2595 } 2596 2597 private void performDraw() { 2598 if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) { 2599 return; 2600 } 2601 2602 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2603 mFullRedrawNeeded = false; 2604 2605 mIsDrawing = true; 2606 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2607 try { 2608 draw(fullRedrawNeeded); 2609 } finally { 2610 mIsDrawing = false; 2611 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2612 } 2613 2614 // For whatever reason we didn't create a HardwareRenderer, end any 2615 // hardware animations that are now dangling 2616 if (mAttachInfo.mPendingAnimatingRenderNodes != null) { 2617 final int count = mAttachInfo.mPendingAnimatingRenderNodes.size(); 2618 for (int i = 0; i < count; i++) { 2619 mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators(); 2620 } 2621 mAttachInfo.mPendingAnimatingRenderNodes.clear(); 2622 } 2623 2624 if (mReportNextDraw) { 2625 mReportNextDraw = false; 2626 2627 // if we're using multi-thread renderer, wait for the window frame draws 2628 if (mWindowDrawCountDown != null) { 2629 try { 2630 mWindowDrawCountDown.await(); 2631 } catch (InterruptedException e) { 2632 Log.e(mTag, "Window redraw count down interruped!"); 2633 } 2634 mWindowDrawCountDown = null; 2635 } 2636 2637 if (mAttachInfo.mHardwareRenderer != null) { 2638 mAttachInfo.mHardwareRenderer.fence(); 2639 mAttachInfo.mHardwareRenderer.setStopped(mStopped); 2640 } 2641 2642 if (LOCAL_LOGV) { 2643 Log.v(mTag, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2644 } 2645 if (mSurfaceHolder != null && mSurface.isValid()) { 2646 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2647 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2648 if (callbacks != null) { 2649 for (SurfaceHolder.Callback c : callbacks) { 2650 if (c instanceof SurfaceHolder.Callback2) { 2651 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded(mSurfaceHolder); 2652 } 2653 } 2654 } 2655 } 2656 try { 2657 mWindowSession.finishDrawing(mWindow); 2658 } catch (RemoteException e) { 2659 } 2660 } 2661 } 2662 2663 private void draw(boolean fullRedrawNeeded) { 2664 Surface surface = mSurface; 2665 if (!surface.isValid()) { 2666 return; 2667 } 2668 2669 if (DEBUG_FPS) { 2670 trackFPS(); 2671 } 2672 2673 if (!sFirstDrawComplete) { 2674 synchronized (sFirstDrawHandlers) { 2675 sFirstDrawComplete = true; 2676 final int count = sFirstDrawHandlers.size(); 2677 for (int i = 0; i< count; i++) { 2678 mHandler.post(sFirstDrawHandlers.get(i)); 2679 } 2680 } 2681 } 2682 2683 scrollToRectOrFocus(null, false); 2684 2685 if (mAttachInfo.mViewScrollChanged) { 2686 mAttachInfo.mViewScrollChanged = false; 2687 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 2688 } 2689 2690 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2691 final int curScrollY; 2692 if (animating) { 2693 curScrollY = mScroller.getCurrY(); 2694 } else { 2695 curScrollY = mScrollY; 2696 } 2697 if (mCurScrollY != curScrollY) { 2698 mCurScrollY = curScrollY; 2699 fullRedrawNeeded = true; 2700 if (mView instanceof RootViewSurfaceTaker) { 2701 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 2702 } 2703 } 2704 2705 final float appScale = mAttachInfo.mApplicationScale; 2706 final boolean scalingRequired = mAttachInfo.mScalingRequired; 2707 2708 int resizeAlpha = 0; 2709 2710 final Rect dirty = mDirty; 2711 if (mSurfaceHolder != null) { 2712 // The app owns the surface, we won't draw. 2713 dirty.setEmpty(); 2714 if (animating && mScroller != null) { 2715 mScroller.abortAnimation(); 2716 } 2717 return; 2718 } 2719 2720 if (fullRedrawNeeded) { 2721 mAttachInfo.mIgnoreDirtyState = true; 2722 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2723 } 2724 2725 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2726 Log.v(mTag, "Draw " + mView + "/" 2727 + mWindowAttributes.getTitle() 2728 + ": dirty={" + dirty.left + "," + dirty.top 2729 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2730 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2731 appScale + ", width=" + mWidth + ", height=" + mHeight); 2732 } 2733 2734 mAttachInfo.mTreeObserver.dispatchOnDraw(); 2735 2736 int xOffset = -mCanvasOffsetX; 2737 int yOffset = -mCanvasOffsetY + curScrollY; 2738 final WindowManager.LayoutParams params = mWindowAttributes; 2739 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 2740 if (surfaceInsets != null) { 2741 xOffset -= surfaceInsets.left; 2742 yOffset -= surfaceInsets.top; 2743 2744 // Offset dirty rect for surface insets. 2745 dirty.offset(surfaceInsets.left, surfaceInsets.right); 2746 } 2747 2748 boolean accessibilityFocusDirty = false; 2749 final Drawable drawable = mAttachInfo.mAccessibilityFocusDrawable; 2750 if (drawable != null) { 2751 final Rect bounds = mAttachInfo.mTmpInvalRect; 2752 final boolean hasFocus = getAccessibilityFocusedRect(bounds); 2753 if (!hasFocus) { 2754 bounds.setEmpty(); 2755 } 2756 if (!bounds.equals(drawable.getBounds())) { 2757 accessibilityFocusDirty = true; 2758 } 2759 } 2760 2761 mAttachInfo.mDrawingTime = 2762 mChoreographer.getFrameTimeNanos() / TimeUtils.NANOS_PER_MS; 2763 2764 if (!dirty.isEmpty() || mIsAnimating || accessibilityFocusDirty) { 2765 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 2766 // If accessibility focus moved, always invalidate the root. 2767 boolean invalidateRoot = accessibilityFocusDirty || mInvalidateRootRequested; 2768 mInvalidateRootRequested = false; 2769 2770 // Draw with hardware renderer. 2771 mIsAnimating = false; 2772 2773 if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) { 2774 mHardwareYOffset = yOffset; 2775 mHardwareXOffset = xOffset; 2776 invalidateRoot = true; 2777 } 2778 2779 if (invalidateRoot) { 2780 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2781 } 2782 2783 dirty.setEmpty(); 2784 2785 // Stage the content drawn size now. It will be transferred to the renderer 2786 // shortly before the draw commands get send to the renderer. 2787 final boolean updated = updateContentDrawBounds(); 2788 2789 if (mReportNextDraw) { 2790 // report next draw overrides setStopped() 2791 // This value is re-sync'd to the value of mStopped 2792 // in the handling of mReportNextDraw post-draw. 2793 mAttachInfo.mHardwareRenderer.setStopped(false); 2794 } 2795 2796 if (updated) { 2797 requestDrawWindow(); 2798 } 2799 2800 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this); 2801 } else { 2802 // If we get here with a disabled & requested hardware renderer, something went 2803 // wrong (an invalidate posted right before we destroyed the hardware surface 2804 // for instance) so we should just bail out. Locking the surface with software 2805 // rendering at this point would lock it forever and prevent hardware renderer 2806 // from doing its job when it comes back. 2807 // Before we request a new frame we must however attempt to reinitiliaze the 2808 // hardware renderer if it's in requested state. This would happen after an 2809 // eglTerminate() for instance. 2810 if (mAttachInfo.mHardwareRenderer != null && 2811 !mAttachInfo.mHardwareRenderer.isEnabled() && 2812 mAttachInfo.mHardwareRenderer.isRequested()) { 2813 2814 try { 2815 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2816 mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets); 2817 } catch (OutOfResourcesException e) { 2818 handleOutOfResourcesException(e); 2819 return; 2820 } 2821 2822 mFullRedrawNeeded = true; 2823 scheduleTraversals(); 2824 return; 2825 } 2826 2827 if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) { 2828 return; 2829 } 2830 } 2831 } 2832 2833 if (animating) { 2834 mFullRedrawNeeded = true; 2835 scheduleTraversals(); 2836 } 2837 } 2838 2839 /** 2840 * @return true if drawing was successful, false if an error occurred 2841 */ 2842 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff, 2843 boolean scalingRequired, Rect dirty) { 2844 2845 // Draw with software renderer. 2846 final Canvas canvas; 2847 try { 2848 final int left = dirty.left; 2849 final int top = dirty.top; 2850 final int right = dirty.right; 2851 final int bottom = dirty.bottom; 2852 2853 canvas = mSurface.lockCanvas(dirty); 2854 2855 // The dirty rectangle can be modified by Surface.lockCanvas() 2856 //noinspection ConstantConditions 2857 if (left != dirty.left || top != dirty.top || right != dirty.right 2858 || bottom != dirty.bottom) { 2859 attachInfo.mIgnoreDirtyState = true; 2860 } 2861 2862 // TODO: Do this in native 2863 canvas.setDensity(mDensity); 2864 } catch (Surface.OutOfResourcesException e) { 2865 handleOutOfResourcesException(e); 2866 return false; 2867 } catch (IllegalArgumentException e) { 2868 Log.e(mTag, "Could not lock surface", e); 2869 // Don't assume this is due to out of memory, it could be 2870 // something else, and if it is something else then we could 2871 // kill stuff (or ourself) for no reason. 2872 mLayoutRequested = true; // ask wm for a new surface next time. 2873 return false; 2874 } 2875 2876 try { 2877 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2878 Log.v(mTag, "Surface " + surface + " drawing to bitmap w=" 2879 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2880 //canvas.drawARGB(255, 255, 0, 0); 2881 } 2882 2883 // If this bitmap's format includes an alpha channel, we 2884 // need to clear it before drawing so that the child will 2885 // properly re-composite its drawing on a transparent 2886 // background. This automatically respects the clip/dirty region 2887 // or 2888 // If we are applying an offset, we need to clear the area 2889 // where the offset doesn't appear to avoid having garbage 2890 // left in the blank areas. 2891 if (!canvas.isOpaque() || yoff != 0 || xoff != 0) { 2892 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2893 } 2894 2895 dirty.setEmpty(); 2896 mIsAnimating = false; 2897 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2898 2899 if (DEBUG_DRAW) { 2900 Context cxt = mView.getContext(); 2901 Log.i(mTag, "Drawing: package:" + cxt.getPackageName() + 2902 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2903 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2904 } 2905 try { 2906 canvas.translate(-xoff, -yoff); 2907 if (mTranslator != null) { 2908 mTranslator.translateCanvas(canvas); 2909 } 2910 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2911 attachInfo.mSetIgnoreDirtyState = false; 2912 2913 mView.draw(canvas); 2914 2915 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2916 } finally { 2917 if (!attachInfo.mSetIgnoreDirtyState) { 2918 // Only clear the flag if it was not set during the mView.draw() call 2919 attachInfo.mIgnoreDirtyState = false; 2920 } 2921 } 2922 } finally { 2923 try { 2924 surface.unlockCanvasAndPost(canvas); 2925 } catch (IllegalArgumentException e) { 2926 Log.e(mTag, "Could not unlock surface", e); 2927 mLayoutRequested = true; // ask wm for a new surface next time. 2928 //noinspection ReturnInsideFinallyBlock 2929 return false; 2930 } 2931 2932 if (LOCAL_LOGV) { 2933 Log.v(mTag, "Surface " + surface + " unlockCanvasAndPost"); 2934 } 2935 } 2936 return true; 2937 } 2938 2939 /** 2940 * We want to draw a highlight around the current accessibility focused. 2941 * Since adding a style for all possible view is not a viable option we 2942 * have this specialized drawing method. 2943 * 2944 * Note: We are doing this here to be able to draw the highlight for 2945 * virtual views in addition to real ones. 2946 * 2947 * @param canvas The canvas on which to draw. 2948 */ 2949 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2950 final Rect bounds = mAttachInfo.mTmpInvalRect; 2951 if (getAccessibilityFocusedRect(bounds)) { 2952 final Drawable drawable = getAccessibilityFocusedDrawable(); 2953 if (drawable != null) { 2954 drawable.setBounds(bounds); 2955 drawable.draw(canvas); 2956 } 2957 } else if (mAttachInfo.mAccessibilityFocusDrawable != null) { 2958 mAttachInfo.mAccessibilityFocusDrawable.setBounds(0, 0, 0, 0); 2959 } 2960 } 2961 2962 private boolean getAccessibilityFocusedRect(Rect bounds) { 2963 final AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2964 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2965 return false; 2966 } 2967 2968 final View host = mAccessibilityFocusedHost; 2969 if (host == null || host.mAttachInfo == null) { 2970 return false; 2971 } 2972 2973 final AccessibilityNodeProvider provider = host.getAccessibilityNodeProvider(); 2974 if (provider == null) { 2975 host.getBoundsOnScreen(bounds, true); 2976 } else if (mAccessibilityFocusedVirtualView != null) { 2977 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2978 } else { 2979 return false; 2980 } 2981 2982 // Transform the rect into window-relative coordinates. 2983 final AttachInfo attachInfo = mAttachInfo; 2984 bounds.offset(0, attachInfo.mViewRootImpl.mScrollY); 2985 bounds.offset(-attachInfo.mWindowLeft, -attachInfo.mWindowTop); 2986 if (!bounds.intersect(0, 0, attachInfo.mViewRootImpl.mWidth, 2987 attachInfo.mViewRootImpl.mHeight)) { 2988 // If no intersection, set bounds to empty. 2989 bounds.setEmpty(); 2990 } 2991 return !bounds.isEmpty(); 2992 } 2993 2994 private Drawable getAccessibilityFocusedDrawable() { 2995 // Lazily load the accessibility focus drawable. 2996 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2997 final TypedValue value = new TypedValue(); 2998 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2999 R.attr.accessibilityFocusedDrawable, value, true); 3000 if (resolved) { 3001 mAttachInfo.mAccessibilityFocusDrawable = 3002 mView.mContext.getDrawable(value.resourceId); 3003 } 3004 } 3005 return mAttachInfo.mAccessibilityFocusDrawable; 3006 } 3007 3008 /** 3009 * Requests that the root render node is invalidated next time we perform a draw, such that 3010 * {@link WindowCallbacks#onPostDraw} gets called. 3011 */ 3012 public void requestInvalidateRootRenderNode() { 3013 mInvalidateRootRequested = true; 3014 } 3015 3016 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 3017 final Rect ci = mAttachInfo.mContentInsets; 3018 final Rect vi = mAttachInfo.mVisibleInsets; 3019 int scrollY = 0; 3020 boolean handled = false; 3021 3022 if (vi.left > ci.left || vi.top > ci.top 3023 || vi.right > ci.right || vi.bottom > ci.bottom) { 3024 // We'll assume that we aren't going to change the scroll 3025 // offset, since we want to avoid that unless it is actually 3026 // going to make the focus visible... otherwise we scroll 3027 // all over the place. 3028 scrollY = mScrollY; 3029 // We can be called for two different situations: during a draw, 3030 // to update the scroll position if the focus has changed (in which 3031 // case 'rectangle' is null), or in response to a 3032 // requestChildRectangleOnScreen() call (in which case 'rectangle' 3033 // is non-null and we just want to scroll to whatever that 3034 // rectangle is). 3035 final View focus = mView.findFocus(); 3036 if (focus == null) { 3037 return false; 3038 } 3039 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 3040 if (focus != lastScrolledFocus) { 3041 // If the focus has changed, then ignore any requests to scroll 3042 // to a rectangle; first we want to make sure the entire focus 3043 // view is visible. 3044 rectangle = null; 3045 } 3046 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "Eval scroll: focus=" + focus 3047 + " rectangle=" + rectangle + " ci=" + ci 3048 + " vi=" + vi); 3049 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 3050 // Optimization: if the focus hasn't changed since last 3051 // time, and no layout has happened, then just leave things 3052 // as they are. 3053 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "Keeping scroll y=" 3054 + mScrollY + " vi=" + vi.toShortString()); 3055 } else { 3056 // We need to determine if the currently focused view is 3057 // within the visible part of the window and, if not, apply 3058 // a pan so it can be seen. 3059 mLastScrolledFocus = new WeakReference<View>(focus); 3060 mScrollMayChange = false; 3061 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "Need to scroll?"); 3062 // Try to find the rectangle from the focus view. 3063 if (focus.getGlobalVisibleRect(mVisRect, null)) { 3064 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "Root w=" 3065 + mView.getWidth() + " h=" + mView.getHeight() 3066 + " ci=" + ci.toShortString() 3067 + " vi=" + vi.toShortString()); 3068 if (rectangle == null) { 3069 focus.getFocusedRect(mTempRect); 3070 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "Focus " + focus 3071 + ": focusRect=" + mTempRect.toShortString()); 3072 if (mView instanceof ViewGroup) { 3073 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3074 focus, mTempRect); 3075 } 3076 if (DEBUG_INPUT_RESIZE) Log.v(mTag, 3077 "Focus in window: focusRect=" 3078 + mTempRect.toShortString() 3079 + " visRect=" + mVisRect.toShortString()); 3080 } else { 3081 mTempRect.set(rectangle); 3082 if (DEBUG_INPUT_RESIZE) Log.v(mTag, 3083 "Request scroll to rect: " 3084 + mTempRect.toShortString() 3085 + " visRect=" + mVisRect.toShortString()); 3086 } 3087 if (mTempRect.intersect(mVisRect)) { 3088 if (DEBUG_INPUT_RESIZE) Log.v(mTag, 3089 "Focus window visible rect: " 3090 + mTempRect.toShortString()); 3091 if (mTempRect.height() > 3092 (mView.getHeight()-vi.top-vi.bottom)) { 3093 // If the focus simply is not going to fit, then 3094 // best is probably just to leave things as-is. 3095 if (DEBUG_INPUT_RESIZE) Log.v(mTag, 3096 "Too tall; leaving scrollY=" + scrollY); 3097 } 3098 // Next, check whether top or bottom is covered based on the non-scrolled 3099 // position, and calculate new scrollY (or set it to 0). 3100 // We can't keep using mScrollY here. For example mScrollY is non-zero 3101 // due to IME, then IME goes away. The current value of mScrollY leaves top 3102 // and bottom both visible, but we still need to scroll it back to 0. 3103 else if (mTempRect.top < vi.top) { 3104 scrollY = mTempRect.top - vi.top; 3105 if (DEBUG_INPUT_RESIZE) Log.v(mTag, 3106 "Top covered; scrollY=" + scrollY); 3107 } else if (mTempRect.bottom > (mView.getHeight()-vi.bottom)) { 3108 scrollY = mTempRect.bottom - (mView.getHeight()-vi.bottom); 3109 if (DEBUG_INPUT_RESIZE) Log.v(mTag, 3110 "Bottom covered; scrollY=" + scrollY); 3111 } else { 3112 scrollY = 0; 3113 } 3114 handled = true; 3115 } 3116 } 3117 } 3118 } 3119 3120 if (scrollY != mScrollY) { 3121 if (DEBUG_INPUT_RESIZE) Log.v(mTag, "Pan scroll changed: old=" 3122 + mScrollY + " , new=" + scrollY); 3123 if (!immediate) { 3124 if (mScroller == null) { 3125 mScroller = new Scroller(mView.getContext()); 3126 } 3127 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 3128 } else if (mScroller != null) { 3129 mScroller.abortAnimation(); 3130 } 3131 mScrollY = scrollY; 3132 } 3133 3134 return handled; 3135 } 3136 3137 /** 3138 * @hide 3139 */ 3140 public View getAccessibilityFocusedHost() { 3141 return mAccessibilityFocusedHost; 3142 } 3143 3144 /** 3145 * @hide 3146 */ 3147 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 3148 return mAccessibilityFocusedVirtualView; 3149 } 3150 3151 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 3152 // If we have a virtual view with accessibility focus we need 3153 // to clear the focus and invalidate the virtual view bounds. 3154 if (mAccessibilityFocusedVirtualView != null) { 3155 3156 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 3157 View focusHost = mAccessibilityFocusedHost; 3158 3159 // Wipe the state of the current accessibility focus since 3160 // the call into the provider to clear accessibility focus 3161 // will fire an accessibility event which will end up calling 3162 // this method and we want to have clean state when this 3163 // invocation happens. 3164 mAccessibilityFocusedHost = null; 3165 mAccessibilityFocusedVirtualView = null; 3166 3167 // Clear accessibility focus on the host after clearing state since 3168 // this method may be reentrant. 3169 focusHost.clearAccessibilityFocusNoCallbacks( 3170 AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS); 3171 3172 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 3173 if (provider != null) { 3174 // Invalidate the area of the cleared accessibility focus. 3175 focusNode.getBoundsInParent(mTempRect); 3176 focusHost.invalidate(mTempRect); 3177 // Clear accessibility focus in the virtual node. 3178 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 3179 focusNode.getSourceNodeId()); 3180 provider.performAction(virtualNodeId, 3181 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 3182 } 3183 focusNode.recycle(); 3184 } 3185 if ((mAccessibilityFocusedHost != null) && (mAccessibilityFocusedHost != view)) { 3186 // Clear accessibility focus in the view. 3187 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks( 3188 AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS); 3189 } 3190 3191 // Set the new focus host and node. 3192 mAccessibilityFocusedHost = view; 3193 mAccessibilityFocusedVirtualView = node; 3194 3195 if (mAttachInfo.mHardwareRenderer != null) { 3196 mAttachInfo.mHardwareRenderer.invalidateRoot(); 3197 } 3198 } 3199 3200 @Override 3201 public void requestChildFocus(View child, View focused) { 3202 if (DEBUG_INPUT_RESIZE) { 3203 Log.v(mTag, "Request child focus: focus now " + focused); 3204 } 3205 checkThread(); 3206 scheduleTraversals(); 3207 } 3208 3209 @Override 3210 public void clearChildFocus(View child) { 3211 if (DEBUG_INPUT_RESIZE) { 3212 Log.v(mTag, "Clearing child focus"); 3213 } 3214 checkThread(); 3215 scheduleTraversals(); 3216 } 3217 3218 @Override 3219 public ViewParent getParentForAccessibility() { 3220 return null; 3221 } 3222 3223 @Override 3224 public void focusableViewAvailable(View v) { 3225 checkThread(); 3226 if (mView != null) { 3227 if (!mView.hasFocus()) { 3228 v.requestFocus(); 3229 } else { 3230 // the one case where will transfer focus away from the current one 3231 // is if the current view is a view group that prefers to give focus 3232 // to its children first AND the view is a descendant of it. 3233 View focused = mView.findFocus(); 3234 if (focused instanceof ViewGroup) { 3235 ViewGroup group = (ViewGroup) focused; 3236 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3237 && isViewDescendantOf(v, focused)) { 3238 v.requestFocus(); 3239 } 3240 } 3241 } 3242 } 3243 } 3244 3245 @Override 3246 public void recomputeViewAttributes(View child) { 3247 checkThread(); 3248 if (mView == child) { 3249 mAttachInfo.mRecomputeGlobalAttributes = true; 3250 if (!mWillDrawSoon) { 3251 scheduleTraversals(); 3252 } 3253 } 3254 } 3255 3256 void dispatchDetachedFromWindow() { 3257 if (mView != null && mView.mAttachInfo != null) { 3258 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 3259 mView.dispatchDetachedFromWindow(); 3260 } 3261 3262 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 3263 mAccessibilityManager.removeAccessibilityStateChangeListener( 3264 mAccessibilityInteractionConnectionManager); 3265 mAccessibilityManager.removeHighTextContrastStateChangeListener( 3266 mHighContrastTextManager); 3267 removeSendWindowContentChangedCallback(); 3268 3269 destroyHardwareRenderer(); 3270 3271 setAccessibilityFocus(null, null); 3272 3273 mView.assignParent(null); 3274 mView = null; 3275 mAttachInfo.mRootView = null; 3276 3277 mSurface.release(); 3278 3279 if (mInputQueueCallback != null && mInputQueue != null) { 3280 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 3281 mInputQueue.dispose(); 3282 mInputQueueCallback = null; 3283 mInputQueue = null; 3284 } 3285 if (mInputEventReceiver != null) { 3286 mInputEventReceiver.dispose(); 3287 mInputEventReceiver = null; 3288 } 3289 try { 3290 mWindowSession.remove(mWindow); 3291 } catch (RemoteException e) { 3292 } 3293 3294 // Dispose the input channel after removing the window so the Window Manager 3295 // doesn't interpret the input channel being closed as an abnormal termination. 3296 if (mInputChannel != null) { 3297 mInputChannel.dispose(); 3298 mInputChannel = null; 3299 } 3300 3301 mDisplayManager.unregisterDisplayListener(mDisplayListener); 3302 3303 unscheduleTraversals(); 3304 } 3305 3306 void updateConfiguration(Configuration config, boolean force) { 3307 if (DEBUG_CONFIGURATION) Log.v(mTag, 3308 "Applying new config to window " 3309 + mWindowAttributes.getTitle() 3310 + ": " + config); 3311 3312 CompatibilityInfo ci = mDisplay.getDisplayAdjustments().getCompatibilityInfo(); 3313 if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) { 3314 config = new Configuration(config); 3315 ci.applyToConfiguration(mNoncompatDensity, config); 3316 } 3317 3318 synchronized (sConfigCallbacks) { 3319 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 3320 sConfigCallbacks.get(i).onConfigurationChanged(config); 3321 } 3322 } 3323 if (mView != null) { 3324 // At this point the resources have been updated to 3325 // have the most recent config, whatever that is. Use 3326 // the one in them which may be newer. 3327 final Resources localResources = mView.getResources(); 3328 config = localResources.getConfiguration(); 3329 if (force || mLastConfiguration.diff(config) != 0) { 3330 // Update the display with new DisplayAdjustments. 3331 mDisplay = ResourcesManager.getInstance().getAdjustedDisplay( 3332 mDisplay.getDisplayId(), localResources.getDisplayAdjustments()); 3333 3334 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 3335 final int currentLayoutDirection = config.getLayoutDirection(); 3336 mLastConfiguration.setTo(config); 3337 if (lastLayoutDirection != currentLayoutDirection && 3338 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 3339 mView.setLayoutDirection(currentLayoutDirection); 3340 } 3341 mView.dispatchConfigurationChanged(config); 3342 } 3343 } 3344 } 3345 3346 /** 3347 * Return true if child is an ancestor of parent, (or equal to the parent). 3348 */ 3349 public static boolean isViewDescendantOf(View child, View parent) { 3350 if (child == parent) { 3351 return true; 3352 } 3353 3354 final ViewParent theParent = child.getParent(); 3355 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 3356 } 3357 3358 private static void forceLayout(View view) { 3359 view.forceLayout(); 3360 if (view instanceof ViewGroup) { 3361 ViewGroup group = (ViewGroup) view; 3362 final int count = group.getChildCount(); 3363 for (int i = 0; i < count; i++) { 3364 forceLayout(group.getChildAt(i)); 3365 } 3366 } 3367 } 3368 3369 private final static int MSG_INVALIDATE = 1; 3370 private final static int MSG_INVALIDATE_RECT = 2; 3371 private final static int MSG_DIE = 3; 3372 private final static int MSG_RESIZED = 4; 3373 private final static int MSG_RESIZED_REPORT = 5; 3374 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 3375 private final static int MSG_DISPATCH_INPUT_EVENT = 7; 3376 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 3377 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 3378 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 3379 private final static int MSG_CHECK_FOCUS = 13; 3380 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 3381 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 3382 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 3383 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 3384 private final static int MSG_UPDATE_CONFIGURATION = 18; 3385 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 3386 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 3387 private final static int MSG_INVALIDATE_WORLD = 22; 3388 private final static int MSG_WINDOW_MOVED = 23; 3389 private final static int MSG_SYNTHESIZE_INPUT_EVENT = 24; 3390 private final static int MSG_DISPATCH_WINDOW_SHOWN = 25; 3391 private final static int MSG_REQUEST_KEYBOARD_SHORTCUTS = 26; 3392 private final static int MSG_UPDATE_POINTER_ICON = 27; 3393 3394 final class ViewRootHandler extends Handler { 3395 @Override 3396 public String getMessageName(Message message) { 3397 switch (message.what) { 3398 case MSG_INVALIDATE: 3399 return "MSG_INVALIDATE"; 3400 case MSG_INVALIDATE_RECT: 3401 return "MSG_INVALIDATE_RECT"; 3402 case MSG_DIE: 3403 return "MSG_DIE"; 3404 case MSG_RESIZED: 3405 return "MSG_RESIZED"; 3406 case MSG_RESIZED_REPORT: 3407 return "MSG_RESIZED_REPORT"; 3408 case MSG_WINDOW_FOCUS_CHANGED: 3409 return "MSG_WINDOW_FOCUS_CHANGED"; 3410 case MSG_DISPATCH_INPUT_EVENT: 3411 return "MSG_DISPATCH_INPUT_EVENT"; 3412 case MSG_DISPATCH_APP_VISIBILITY: 3413 return "MSG_DISPATCH_APP_VISIBILITY"; 3414 case MSG_DISPATCH_GET_NEW_SURFACE: 3415 return "MSG_DISPATCH_GET_NEW_SURFACE"; 3416 case MSG_DISPATCH_KEY_FROM_IME: 3417 return "MSG_DISPATCH_KEY_FROM_IME"; 3418 case MSG_CHECK_FOCUS: 3419 return "MSG_CHECK_FOCUS"; 3420 case MSG_CLOSE_SYSTEM_DIALOGS: 3421 return "MSG_CLOSE_SYSTEM_DIALOGS"; 3422 case MSG_DISPATCH_DRAG_EVENT: 3423 return "MSG_DISPATCH_DRAG_EVENT"; 3424 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 3425 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 3426 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 3427 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 3428 case MSG_UPDATE_CONFIGURATION: 3429 return "MSG_UPDATE_CONFIGURATION"; 3430 case MSG_PROCESS_INPUT_EVENTS: 3431 return "MSG_PROCESS_INPUT_EVENTS"; 3432 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3433 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3434 case MSG_WINDOW_MOVED: 3435 return "MSG_WINDOW_MOVED"; 3436 case MSG_SYNTHESIZE_INPUT_EVENT: 3437 return "MSG_SYNTHESIZE_INPUT_EVENT"; 3438 case MSG_DISPATCH_WINDOW_SHOWN: 3439 return "MSG_DISPATCH_WINDOW_SHOWN"; 3440 case MSG_UPDATE_POINTER_ICON: 3441 return "MSG_UPDATE_POINTER_ICON"; 3442 } 3443 return super.getMessageName(message); 3444 } 3445 3446 @Override 3447 public boolean sendMessageAtTime(Message msg, long uptimeMillis) { 3448 if (msg.what == MSG_REQUEST_KEYBOARD_SHORTCUTS && msg.obj == null) { 3449 // Debugging for b/27963013 3450 throw new NullPointerException( 3451 "Attempted to call MSG_REQUEST_KEYBOARD_SHORTCUTS with null receiver:"); 3452 } 3453 return super.sendMessageAtTime(msg, uptimeMillis); 3454 } 3455 3456 @Override 3457 public void handleMessage(Message msg) { 3458 switch (msg.what) { 3459 case MSG_INVALIDATE: 3460 ((View) msg.obj).invalidate(); 3461 break; 3462 case MSG_INVALIDATE_RECT: 3463 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3464 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3465 info.recycle(); 3466 break; 3467 case MSG_PROCESS_INPUT_EVENTS: 3468 mProcessInputEventsScheduled = false; 3469 doProcessInputEvents(); 3470 break; 3471 case MSG_DISPATCH_APP_VISIBILITY: 3472 handleAppVisibility(msg.arg1 != 0); 3473 break; 3474 case MSG_DISPATCH_GET_NEW_SURFACE: 3475 handleGetNewSurface(); 3476 break; 3477 case MSG_RESIZED: { 3478 // Recycled in the fall through... 3479 SomeArgs args = (SomeArgs) msg.obj; 3480 if (mWinFrame.equals(args.arg1) 3481 && mPendingOverscanInsets.equals(args.arg5) 3482 && mPendingContentInsets.equals(args.arg2) 3483 && mPendingStableInsets.equals(args.arg6) 3484 && mPendingVisibleInsets.equals(args.arg3) 3485 && mPendingOutsets.equals(args.arg7) 3486 && mPendingBackDropFrame.equals(args.arg8) 3487 && args.arg4 == null 3488 && args.argi1 == 0) { 3489 break; 3490 } 3491 } // fall through... 3492 case MSG_RESIZED_REPORT: 3493 if (mAdded) { 3494 SomeArgs args = (SomeArgs) msg.obj; 3495 3496 Configuration config = (Configuration) args.arg4; 3497 if (config != null) { 3498 updateConfiguration(config, false); 3499 } 3500 3501 final boolean framesChanged = !mWinFrame.equals(args.arg1) 3502 || !mPendingOverscanInsets.equals(args.arg5) 3503 || !mPendingContentInsets.equals(args.arg2) 3504 || !mPendingStableInsets.equals(args.arg6) 3505 || !mPendingVisibleInsets.equals(args.arg3) 3506 || !mPendingOutsets.equals(args.arg7); 3507 3508 mWinFrame.set((Rect) args.arg1); 3509 mPendingOverscanInsets.set((Rect) args.arg5); 3510 mPendingContentInsets.set((Rect) args.arg2); 3511 mPendingStableInsets.set((Rect) args.arg6); 3512 mPendingVisibleInsets.set((Rect) args.arg3); 3513 mPendingOutsets.set((Rect) args.arg7); 3514 mPendingBackDropFrame.set((Rect) args.arg8); 3515 mForceNextWindowRelayout = args.argi1 != 0; 3516 mPendingAlwaysConsumeNavBar = args.argi2 != 0; 3517 3518 args.recycle(); 3519 3520 if (msg.what == MSG_RESIZED_REPORT) { 3521 mReportNextDraw = true; 3522 } 3523 3524 if (mView != null && framesChanged) { 3525 forceLayout(mView); 3526 } 3527 3528 requestLayout(); 3529 } 3530 break; 3531 case MSG_WINDOW_MOVED: 3532 if (mAdded) { 3533 final int w = mWinFrame.width(); 3534 final int h = mWinFrame.height(); 3535 final int l = msg.arg1; 3536 final int t = msg.arg2; 3537 mWinFrame.left = l; 3538 mWinFrame.right = l + w; 3539 mWinFrame.top = t; 3540 mWinFrame.bottom = t + h; 3541 3542 mPendingBackDropFrame.set(mWinFrame); 3543 3544 // Suppress layouts during resizing - a correct layout will happen when resizing 3545 // is done, and this just increases system load. 3546 boolean isDockedDivider = mWindowAttributes.type == TYPE_DOCK_DIVIDER; 3547 boolean suppress = (mDragResizing && mResizeMode == RESIZE_MODE_DOCKED_DIVIDER) 3548 || isDockedDivider; 3549 if (!suppress) { 3550 if (mView != null) { 3551 forceLayout(mView); 3552 } 3553 requestLayout(); 3554 } else { 3555 maybeHandleWindowMove(mWinFrame); 3556 } 3557 } 3558 break; 3559 case MSG_WINDOW_FOCUS_CHANGED: { 3560 if (mAdded) { 3561 boolean hasWindowFocus = msg.arg1 != 0; 3562 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3563 3564 profileRendering(hasWindowFocus); 3565 3566 if (hasWindowFocus) { 3567 boolean inTouchMode = msg.arg2 != 0; 3568 ensureTouchModeLocally(inTouchMode); 3569 3570 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3571 mFullRedrawNeeded = true; 3572 try { 3573 final WindowManager.LayoutParams lp = mWindowAttributes; 3574 final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null; 3575 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3576 mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets); 3577 } catch (OutOfResourcesException e) { 3578 Log.e(mTag, "OutOfResourcesException locking surface", e); 3579 try { 3580 if (!mWindowSession.outOfMemory(mWindow)) { 3581 Slog.w(mTag, "No processes killed for memory; killing self"); 3582 Process.killProcess(Process.myPid()); 3583 } 3584 } catch (RemoteException ex) { 3585 } 3586 // Retry in a bit. 3587 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3588 return; 3589 } 3590 } 3591 } 3592 3593 mLastWasImTarget = WindowManager.LayoutParams 3594 .mayUseInputMethod(mWindowAttributes.flags); 3595 3596 InputMethodManager imm = InputMethodManager.peekInstance(); 3597 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3598 imm.onPreWindowFocus(mView, hasWindowFocus); 3599 } 3600 if (mView != null) { 3601 mAttachInfo.mKeyDispatchState.reset(); 3602 mView.dispatchWindowFocusChanged(hasWindowFocus); 3603 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3604 } 3605 3606 // Note: must be done after the focus change callbacks, 3607 // so all of the view state is set up correctly. 3608 if (hasWindowFocus) { 3609 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3610 imm.onPostWindowFocus(mView, mView.findFocus(), 3611 mWindowAttributes.softInputMode, 3612 !mHasHadWindowFocus, mWindowAttributes.flags); 3613 } 3614 // Clear the forward bit. We can just do this directly, since 3615 // the window manager doesn't care about it. 3616 mWindowAttributes.softInputMode &= 3617 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3618 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3619 .softInputMode &= 3620 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3621 mHasHadWindowFocus = true; 3622 } 3623 } 3624 } break; 3625 case MSG_DIE: 3626 doDie(); 3627 break; 3628 case MSG_DISPATCH_INPUT_EVENT: { 3629 SomeArgs args = (SomeArgs)msg.obj; 3630 InputEvent event = (InputEvent)args.arg1; 3631 InputEventReceiver receiver = (InputEventReceiver)args.arg2; 3632 enqueueInputEvent(event, receiver, 0, true); 3633 args.recycle(); 3634 } break; 3635 case MSG_SYNTHESIZE_INPUT_EVENT: { 3636 InputEvent event = (InputEvent)msg.obj; 3637 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true); 3638 } break; 3639 case MSG_DISPATCH_KEY_FROM_IME: { 3640 if (LOCAL_LOGV) Log.v( 3641 TAG, "Dispatching key " 3642 + msg.obj + " from IME to " + mView); 3643 KeyEvent event = (KeyEvent)msg.obj; 3644 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3645 // The IME is trying to say this event is from the 3646 // system! Bad bad bad! 3647 //noinspection UnusedAssignment 3648 event = KeyEvent.changeFlags(event, event.getFlags() & 3649 ~KeyEvent.FLAG_FROM_SYSTEM); 3650 } 3651 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3652 } break; 3653 case MSG_CHECK_FOCUS: { 3654 InputMethodManager imm = InputMethodManager.peekInstance(); 3655 if (imm != null) { 3656 imm.checkFocus(); 3657 } 3658 } break; 3659 case MSG_CLOSE_SYSTEM_DIALOGS: { 3660 if (mView != null) { 3661 mView.onCloseSystemDialogs((String)msg.obj); 3662 } 3663 } break; 3664 case MSG_DISPATCH_DRAG_EVENT: 3665 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3666 DragEvent event = (DragEvent)msg.obj; 3667 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3668 handleDragEvent(event); 3669 } break; 3670 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3671 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3672 } break; 3673 case MSG_UPDATE_CONFIGURATION: { 3674 Configuration config = (Configuration)msg.obj; 3675 if (config.isOtherSeqNewer(mLastConfiguration)) { 3676 config = mLastConfiguration; 3677 } 3678 updateConfiguration(config, false); 3679 } break; 3680 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3681 setAccessibilityFocus(null, null); 3682 } break; 3683 case MSG_INVALIDATE_WORLD: { 3684 if (mView != null) { 3685 invalidateWorld(mView); 3686 } 3687 } break; 3688 case MSG_DISPATCH_WINDOW_SHOWN: { 3689 handleDispatchWindowShown(); 3690 } break; 3691 case MSG_REQUEST_KEYBOARD_SHORTCUTS: { 3692 final IResultReceiver receiver = (IResultReceiver) msg.obj; 3693 final int deviceId = msg.arg1; 3694 handleRequestKeyboardShortcuts(receiver, deviceId); 3695 } break; 3696 case MSG_UPDATE_POINTER_ICON: { 3697 MotionEvent event = (MotionEvent) msg.obj; 3698 resetPointerIcon(event); 3699 } break; 3700 } 3701 } 3702 } 3703 3704 final ViewRootHandler mHandler = new ViewRootHandler(); 3705 3706 /** 3707 * Something in the current window tells us we need to change the touch mode. For 3708 * example, we are not in touch mode, and the user touches the screen. 3709 * 3710 * If the touch mode has changed, tell the window manager, and handle it locally. 3711 * 3712 * @param inTouchMode Whether we want to be in touch mode. 3713 * @return True if the touch mode changed and focus changed was changed as a result 3714 */ 3715 boolean ensureTouchMode(boolean inTouchMode) { 3716 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3717 + "touch mode is " + mAttachInfo.mInTouchMode); 3718 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3719 3720 // tell the window manager 3721 try { 3722 mWindowSession.setInTouchMode(inTouchMode); 3723 } catch (RemoteException e) { 3724 throw new RuntimeException(e); 3725 } 3726 3727 // handle the change 3728 return ensureTouchModeLocally(inTouchMode); 3729 } 3730 3731 /** 3732 * Ensure that the touch mode for this window is set, and if it is changing, 3733 * take the appropriate action. 3734 * @param inTouchMode Whether we want to be in touch mode. 3735 * @return True if the touch mode changed and focus changed was changed as a result 3736 */ 3737 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3738 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3739 + "touch mode is " + mAttachInfo.mInTouchMode); 3740 3741 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3742 3743 mAttachInfo.mInTouchMode = inTouchMode; 3744 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3745 3746 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3747 } 3748 3749 private boolean enterTouchMode() { 3750 if (mView != null && mView.hasFocus()) { 3751 // note: not relying on mFocusedView here because this could 3752 // be when the window is first being added, and mFocused isn't 3753 // set yet. 3754 final View focused = mView.findFocus(); 3755 if (focused != null && !focused.isFocusableInTouchMode()) { 3756 final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused); 3757 if (ancestorToTakeFocus != null) { 3758 // there is an ancestor that wants focus after its 3759 // descendants that is focusable in touch mode.. give it 3760 // focus 3761 return ancestorToTakeFocus.requestFocus(); 3762 } else { 3763 // There's nothing to focus. Clear and propagate through the 3764 // hierarchy, but don't attempt to place new focus. 3765 focused.clearFocusInternal(null, true, false); 3766 return true; 3767 } 3768 } 3769 } 3770 return false; 3771 } 3772 3773 /** 3774 * Find an ancestor of focused that wants focus after its descendants and is 3775 * focusable in touch mode. 3776 * @param focused The currently focused view. 3777 * @return An appropriate view, or null if no such view exists. 3778 */ 3779 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3780 ViewParent parent = focused.getParent(); 3781 while (parent instanceof ViewGroup) { 3782 final ViewGroup vgParent = (ViewGroup) parent; 3783 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3784 && vgParent.isFocusableInTouchMode()) { 3785 return vgParent; 3786 } 3787 if (vgParent.isRootNamespace()) { 3788 return null; 3789 } else { 3790 parent = vgParent.getParent(); 3791 } 3792 } 3793 return null; 3794 } 3795 3796 private boolean leaveTouchMode() { 3797 if (mView != null) { 3798 if (mView.hasFocus()) { 3799 View focusedView = mView.findFocus(); 3800 if (!(focusedView instanceof ViewGroup)) { 3801 // some view has focus, let it keep it 3802 return false; 3803 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3804 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3805 // some view group has focus, and doesn't prefer its children 3806 // over itself for focus, so let them keep it. 3807 return false; 3808 } 3809 } 3810 3811 // find the best view to give focus to in this brave new non-touch-mode 3812 // world 3813 final View focused = focusSearch(null, View.FOCUS_DOWN); 3814 if (focused != null) { 3815 return focused.requestFocus(View.FOCUS_DOWN); 3816 } 3817 } 3818 return false; 3819 } 3820 3821 /** 3822 * Base class for implementing a stage in the chain of responsibility 3823 * for processing input events. 3824 * <p> 3825 * Events are delivered to the stage by the {@link #deliver} method. The stage 3826 * then has the choice of finishing the event or forwarding it to the next stage. 3827 * </p> 3828 */ 3829 abstract class InputStage { 3830 private final InputStage mNext; 3831 3832 protected static final int FORWARD = 0; 3833 protected static final int FINISH_HANDLED = 1; 3834 protected static final int FINISH_NOT_HANDLED = 2; 3835 3836 /** 3837 * Creates an input stage. 3838 * @param next The next stage to which events should be forwarded. 3839 */ 3840 public InputStage(InputStage next) { 3841 mNext = next; 3842 } 3843 3844 /** 3845 * Delivers an event to be processed. 3846 */ 3847 public final void deliver(QueuedInputEvent q) { 3848 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3849 forward(q); 3850 } else if (shouldDropInputEvent(q)) { 3851 finish(q, false); 3852 } else { 3853 apply(q, onProcess(q)); 3854 } 3855 } 3856 3857 /** 3858 * Marks the the input event as finished then forwards it to the next stage. 3859 */ 3860 protected void finish(QueuedInputEvent q, boolean handled) { 3861 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3862 if (handled) { 3863 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3864 } 3865 forward(q); 3866 } 3867 3868 /** 3869 * Forwards the event to the next stage. 3870 */ 3871 protected void forward(QueuedInputEvent q) { 3872 onDeliverToNext(q); 3873 } 3874 3875 /** 3876 * Applies a result code from {@link #onProcess} to the specified event. 3877 */ 3878 protected void apply(QueuedInputEvent q, int result) { 3879 if (result == FORWARD) { 3880 forward(q); 3881 } else if (result == FINISH_HANDLED) { 3882 finish(q, true); 3883 } else if (result == FINISH_NOT_HANDLED) { 3884 finish(q, false); 3885 } else { 3886 throw new IllegalArgumentException("Invalid result: " + result); 3887 } 3888 } 3889 3890 /** 3891 * Called when an event is ready to be processed. 3892 * @return A result code indicating how the event was handled. 3893 */ 3894 protected int onProcess(QueuedInputEvent q) { 3895 return FORWARD; 3896 } 3897 3898 /** 3899 * Called when an event is being delivered to the next stage. 3900 */ 3901 protected void onDeliverToNext(QueuedInputEvent q) { 3902 if (DEBUG_INPUT_STAGES) { 3903 Log.v(mTag, "Done with " + getClass().getSimpleName() + ". " + q); 3904 } 3905 if (mNext != null) { 3906 mNext.deliver(q); 3907 } else { 3908 finishInputEvent(q); 3909 } 3910 } 3911 3912 protected boolean shouldDropInputEvent(QueuedInputEvent q) { 3913 if (mView == null || !mAdded) { 3914 Slog.w(mTag, "Dropping event due to root view being removed: " + q.mEvent); 3915 return true; 3916 } else if ((!mAttachInfo.mHasWindowFocus 3917 && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) || mStopped 3918 || (mIsAmbientMode && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_BUTTON)) 3919 || (mPausedForTransition && !isBack(q.mEvent))) { 3920 // This is a focus event and the window doesn't currently have input focus or 3921 // has stopped. This could be an event that came back from the previous stage 3922 // but the window has lost focus or stopped in the meantime. 3923 if (isTerminalInputEvent(q.mEvent)) { 3924 // Don't drop terminal input events, however mark them as canceled. 3925 q.mEvent.cancel(); 3926 Slog.w(mTag, "Cancelling event due to no window focus: " + q.mEvent); 3927 return false; 3928 } 3929 3930 // Drop non-terminal input events. 3931 Slog.w(mTag, "Dropping event due to no window focus: " + q.mEvent); 3932 return true; 3933 } 3934 return false; 3935 } 3936 3937 void dump(String prefix, PrintWriter writer) { 3938 if (mNext != null) { 3939 mNext.dump(prefix, writer); 3940 } 3941 } 3942 3943 private boolean isBack(InputEvent event) { 3944 if (event instanceof KeyEvent) { 3945 return ((KeyEvent) event).getKeyCode() == KeyEvent.KEYCODE_BACK; 3946 } else { 3947 return false; 3948 } 3949 } 3950 } 3951 3952 /** 3953 * Base class for implementing an input pipeline stage that supports 3954 * asynchronous and out-of-order processing of input events. 3955 * <p> 3956 * In addition to what a normal input stage can do, an asynchronous 3957 * input stage may also defer an input event that has been delivered to it 3958 * and finish or forward it later. 3959 * </p> 3960 */ 3961 abstract class AsyncInputStage extends InputStage { 3962 private final String mTraceCounter; 3963 3964 private QueuedInputEvent mQueueHead; 3965 private QueuedInputEvent mQueueTail; 3966 private int mQueueLength; 3967 3968 protected static final int DEFER = 3; 3969 3970 /** 3971 * Creates an asynchronous input stage. 3972 * @param next The next stage to which events should be forwarded. 3973 * @param traceCounter The name of a counter to record the size of 3974 * the queue of pending events. 3975 */ 3976 public AsyncInputStage(InputStage next, String traceCounter) { 3977 super(next); 3978 mTraceCounter = traceCounter; 3979 } 3980 3981 /** 3982 * Marks the event as deferred, which is to say that it will be handled 3983 * asynchronously. The caller is responsible for calling {@link #forward} 3984 * or {@link #finish} later when it is done handling the event. 3985 */ 3986 protected void defer(QueuedInputEvent q) { 3987 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3988 enqueue(q); 3989 } 3990 3991 @Override 3992 protected void forward(QueuedInputEvent q) { 3993 // Clear the deferred flag. 3994 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3995 3996 // Fast path if the queue is empty. 3997 QueuedInputEvent curr = mQueueHead; 3998 if (curr == null) { 3999 super.forward(q); 4000 return; 4001 } 4002 4003 // Determine whether the event must be serialized behind any others 4004 // before it can be delivered to the next stage. This is done because 4005 // deferred events might be handled out of order by the stage. 4006 final int deviceId = q.mEvent.getDeviceId(); 4007 QueuedInputEvent prev = null; 4008 boolean blocked = false; 4009 while (curr != null && curr != q) { 4010 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 4011 blocked = true; 4012 } 4013 prev = curr; 4014 curr = curr.mNext; 4015 } 4016 4017 // If the event is blocked, then leave it in the queue to be delivered later. 4018 // Note that the event might not yet be in the queue if it was not previously 4019 // deferred so we will enqueue it if needed. 4020 if (blocked) { 4021 if (curr == null) { 4022 enqueue(q); 4023 } 4024 return; 4025 } 4026 4027 // The event is not blocked. Deliver it immediately. 4028 if (curr != null) { 4029 curr = curr.mNext; 4030 dequeue(q, prev); 4031 } 4032 super.forward(q); 4033 4034 // Dequeuing this event may have unblocked successors. Deliver them. 4035 while (curr != null) { 4036 if (deviceId == curr.mEvent.getDeviceId()) { 4037 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 4038 break; 4039 } 4040 QueuedInputEvent next = curr.mNext; 4041 dequeue(curr, prev); 4042 super.forward(curr); 4043 curr = next; 4044 } else { 4045 prev = curr; 4046 curr = curr.mNext; 4047 } 4048 } 4049 } 4050 4051 @Override 4052 protected void apply(QueuedInputEvent q, int result) { 4053 if (result == DEFER) { 4054 defer(q); 4055 } else { 4056 super.apply(q, result); 4057 } 4058 } 4059 4060 private void enqueue(QueuedInputEvent q) { 4061 if (mQueueTail == null) { 4062 mQueueHead = q; 4063 mQueueTail = q; 4064 } else { 4065 mQueueTail.mNext = q; 4066 mQueueTail = q; 4067 } 4068 4069 mQueueLength += 1; 4070 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 4071 } 4072 4073 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 4074 if (prev == null) { 4075 mQueueHead = q.mNext; 4076 } else { 4077 prev.mNext = q.mNext; 4078 } 4079 if (mQueueTail == q) { 4080 mQueueTail = prev; 4081 } 4082 q.mNext = null; 4083 4084 mQueueLength -= 1; 4085 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 4086 } 4087 4088 @Override 4089 void dump(String prefix, PrintWriter writer) { 4090 writer.print(prefix); 4091 writer.print(getClass().getName()); 4092 writer.print(": mQueueLength="); 4093 writer.println(mQueueLength); 4094 4095 super.dump(prefix, writer); 4096 } 4097 } 4098 4099 /** 4100 * Delivers pre-ime input events to a native activity. 4101 * Does not support pointer events. 4102 */ 4103 final class NativePreImeInputStage extends AsyncInputStage 4104 implements InputQueue.FinishedInputEventCallback { 4105 public NativePreImeInputStage(InputStage next, String traceCounter) { 4106 super(next, traceCounter); 4107 } 4108 4109 @Override 4110 protected int onProcess(QueuedInputEvent q) { 4111 if (mInputQueue != null && q.mEvent instanceof KeyEvent) { 4112 mInputQueue.sendInputEvent(q.mEvent, q, true, this); 4113 return DEFER; 4114 } 4115 return FORWARD; 4116 } 4117 4118 @Override 4119 public void onFinishedInputEvent(Object token, boolean handled) { 4120 QueuedInputEvent q = (QueuedInputEvent)token; 4121 if (handled) { 4122 finish(q, true); 4123 return; 4124 } 4125 forward(q); 4126 } 4127 } 4128 4129 /** 4130 * Delivers pre-ime input events to the view hierarchy. 4131 * Does not support pointer events. 4132 */ 4133 final class ViewPreImeInputStage extends InputStage { 4134 public ViewPreImeInputStage(InputStage next) { 4135 super(next); 4136 } 4137 4138 @Override 4139 protected int onProcess(QueuedInputEvent q) { 4140 if (q.mEvent instanceof KeyEvent) { 4141 return processKeyEvent(q); 4142 } 4143 return FORWARD; 4144 } 4145 4146 private int processKeyEvent(QueuedInputEvent q) { 4147 final KeyEvent event = (KeyEvent)q.mEvent; 4148 if (mView.dispatchKeyEventPreIme(event)) { 4149 return FINISH_HANDLED; 4150 } 4151 return FORWARD; 4152 } 4153 } 4154 4155 /** 4156 * Delivers input events to the ime. 4157 * Does not support pointer events. 4158 */ 4159 final class ImeInputStage extends AsyncInputStage 4160 implements InputMethodManager.FinishedInputEventCallback { 4161 public ImeInputStage(InputStage next, String traceCounter) { 4162 super(next, traceCounter); 4163 } 4164 4165 @Override 4166 protected int onProcess(QueuedInputEvent q) { 4167 if (mLastWasImTarget && !isInLocalFocusMode()) { 4168 InputMethodManager imm = InputMethodManager.peekInstance(); 4169 if (imm != null) { 4170 final InputEvent event = q.mEvent; 4171 if (DEBUG_IMF) Log.v(mTag, "Sending input event to IME: " + event); 4172 int result = imm.dispatchInputEvent(event, q, this, mHandler); 4173 if (result == InputMethodManager.DISPATCH_HANDLED) { 4174 return FINISH_HANDLED; 4175 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 4176 // The IME could not handle it, so skip along to the next InputStage 4177 return FORWARD; 4178 } else { 4179 return DEFER; // callback will be invoked later 4180 } 4181 } 4182 } 4183 return FORWARD; 4184 } 4185 4186 @Override 4187 public void onFinishedInputEvent(Object token, boolean handled) { 4188 QueuedInputEvent q = (QueuedInputEvent)token; 4189 if (handled) { 4190 finish(q, true); 4191 return; 4192 } 4193 forward(q); 4194 } 4195 } 4196 4197 /** 4198 * Performs early processing of post-ime input events. 4199 */ 4200 final class EarlyPostImeInputStage extends InputStage { 4201 public EarlyPostImeInputStage(InputStage next) { 4202 super(next); 4203 } 4204 4205 @Override 4206 protected int onProcess(QueuedInputEvent q) { 4207 if (q.mEvent instanceof KeyEvent) { 4208 return processKeyEvent(q); 4209 } else { 4210 final int source = q.mEvent.getSource(); 4211 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 4212 return processPointerEvent(q); 4213 } 4214 } 4215 return FORWARD; 4216 } 4217 4218 private int processKeyEvent(QueuedInputEvent q) { 4219 final KeyEvent event = (KeyEvent)q.mEvent; 4220 4221 // If the key's purpose is to exit touch mode then we consume it 4222 // and consider it handled. 4223 if (checkForLeavingTouchModeAndConsume(event)) { 4224 return FINISH_HANDLED; 4225 } 4226 4227 // Make sure the fallback event policy sees all keys that will be 4228 // delivered to the view hierarchy. 4229 mFallbackEventHandler.preDispatchKeyEvent(event); 4230 return FORWARD; 4231 } 4232 4233 private int processPointerEvent(QueuedInputEvent q) { 4234 final MotionEvent event = (MotionEvent)q.mEvent; 4235 4236 // Translate the pointer event for compatibility, if needed. 4237 if (mTranslator != null) { 4238 mTranslator.translateEventInScreenToAppWindow(event); 4239 } 4240 4241 // Enter touch mode on down or scroll. 4242 final int action = event.getAction(); 4243 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 4244 ensureTouchMode(true); 4245 } 4246 4247 // Offset the scroll position. 4248 if (mCurScrollY != 0) { 4249 event.offsetLocation(0, mCurScrollY); 4250 } 4251 4252 // Remember the touch position for possible drag-initiation. 4253 if (event.isTouchEvent()) { 4254 mLastTouchPoint.x = event.getRawX(); 4255 mLastTouchPoint.y = event.getRawY(); 4256 mLastTouchSource = event.getSource(); 4257 } 4258 return FORWARD; 4259 } 4260 } 4261 4262 /** 4263 * Delivers post-ime input events to a native activity. 4264 */ 4265 final class NativePostImeInputStage extends AsyncInputStage 4266 implements InputQueue.FinishedInputEventCallback { 4267 public NativePostImeInputStage(InputStage next, String traceCounter) { 4268 super(next, traceCounter); 4269 } 4270 4271 @Override 4272 protected int onProcess(QueuedInputEvent q) { 4273 if (mInputQueue != null) { 4274 mInputQueue.sendInputEvent(q.mEvent, q, false, this); 4275 return DEFER; 4276 } 4277 return FORWARD; 4278 } 4279 4280 @Override 4281 public void onFinishedInputEvent(Object token, boolean handled) { 4282 QueuedInputEvent q = (QueuedInputEvent)token; 4283 if (handled) { 4284 finish(q, true); 4285 return; 4286 } 4287 forward(q); 4288 } 4289 } 4290 4291 /** 4292 * Delivers post-ime input events to the view hierarchy. 4293 */ 4294 final class ViewPostImeInputStage extends InputStage { 4295 public ViewPostImeInputStage(InputStage next) { 4296 super(next); 4297 } 4298 4299 @Override 4300 protected int onProcess(QueuedInputEvent q) { 4301 if (q.mEvent instanceof KeyEvent) { 4302 return processKeyEvent(q); 4303 } else { 4304 final int source = q.mEvent.getSource(); 4305 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 4306 return processPointerEvent(q); 4307 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4308 return processTrackballEvent(q); 4309 } else { 4310 return processGenericMotionEvent(q); 4311 } 4312 } 4313 } 4314 4315 @Override 4316 protected void onDeliverToNext(QueuedInputEvent q) { 4317 if (mUnbufferedInputDispatch 4318 && q.mEvent instanceof MotionEvent 4319 && ((MotionEvent)q.mEvent).isTouchEvent() 4320 && isTerminalInputEvent(q.mEvent)) { 4321 mUnbufferedInputDispatch = false; 4322 scheduleConsumeBatchedInput(); 4323 } 4324 super.onDeliverToNext(q); 4325 } 4326 4327 private int processKeyEvent(QueuedInputEvent q) { 4328 final KeyEvent event = (KeyEvent)q.mEvent; 4329 4330 // Deliver the key to the view hierarchy. 4331 if (mView.dispatchKeyEvent(event)) { 4332 return FINISH_HANDLED; 4333 } 4334 4335 if (shouldDropInputEvent(q)) { 4336 return FINISH_NOT_HANDLED; 4337 } 4338 4339 // If the Control modifier is held, try to interpret the key as a shortcut. 4340 if (event.getAction() == KeyEvent.ACTION_DOWN 4341 && event.isCtrlPressed() 4342 && event.getRepeatCount() == 0 4343 && !KeyEvent.isModifierKey(event.getKeyCode())) { 4344 if (mView.dispatchKeyShortcutEvent(event)) { 4345 return FINISH_HANDLED; 4346 } 4347 if (shouldDropInputEvent(q)) { 4348 return FINISH_NOT_HANDLED; 4349 } 4350 } 4351 4352 // Apply the fallback event policy. 4353 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 4354 return FINISH_HANDLED; 4355 } 4356 if (shouldDropInputEvent(q)) { 4357 return FINISH_NOT_HANDLED; 4358 } 4359 4360 // Handle automatic focus changes. 4361 if (event.getAction() == KeyEvent.ACTION_DOWN) { 4362 int direction = 0; 4363 switch (event.getKeyCode()) { 4364 case KeyEvent.KEYCODE_DPAD_LEFT: 4365 if (event.hasNoModifiers()) { 4366 direction = View.FOCUS_LEFT; 4367 } 4368 break; 4369 case KeyEvent.KEYCODE_DPAD_RIGHT: 4370 if (event.hasNoModifiers()) { 4371 direction = View.FOCUS_RIGHT; 4372 } 4373 break; 4374 case KeyEvent.KEYCODE_DPAD_UP: 4375 if (event.hasNoModifiers()) { 4376 direction = View.FOCUS_UP; 4377 } 4378 break; 4379 case KeyEvent.KEYCODE_DPAD_DOWN: 4380 if (event.hasNoModifiers()) { 4381 direction = View.FOCUS_DOWN; 4382 } 4383 break; 4384 case KeyEvent.KEYCODE_TAB: 4385 if (event.hasNoModifiers()) { 4386 direction = View.FOCUS_FORWARD; 4387 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4388 direction = View.FOCUS_BACKWARD; 4389 } 4390 break; 4391 } 4392 if (direction != 0) { 4393 View focused = mView.findFocus(); 4394 if (focused != null) { 4395 View v = focused.focusSearch(direction); 4396 if (v != null && v != focused) { 4397 // do the math the get the interesting rect 4398 // of previous focused into the coord system of 4399 // newly focused view 4400 focused.getFocusedRect(mTempRect); 4401 if (mView instanceof ViewGroup) { 4402 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 4403 focused, mTempRect); 4404 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 4405 v, mTempRect); 4406 } 4407 if (v.requestFocus(direction, mTempRect)) { 4408 playSoundEffect(SoundEffectConstants 4409 .getContantForFocusDirection(direction)); 4410 return FINISH_HANDLED; 4411 } 4412 } 4413 4414 // Give the focused view a last chance to handle the dpad key. 4415 if (mView.dispatchUnhandledMove(focused, direction)) { 4416 return FINISH_HANDLED; 4417 } 4418 } else { 4419 // find the best view to give focus to in this non-touch-mode with no-focus 4420 View v = focusSearch(null, direction); 4421 if (v != null && v.requestFocus(direction)) { 4422 return FINISH_HANDLED; 4423 } 4424 } 4425 } 4426 } 4427 return FORWARD; 4428 } 4429 4430 private int processPointerEvent(QueuedInputEvent q) { 4431 final MotionEvent event = (MotionEvent)q.mEvent; 4432 4433 mAttachInfo.mUnbufferedDispatchRequested = false; 4434 final View eventTarget = 4435 (event.isFromSource(InputDevice.SOURCE_MOUSE) && mCapturingView != null) ? 4436 mCapturingView : mView; 4437 mAttachInfo.mHandlingPointerEvent = true; 4438 boolean handled = eventTarget.dispatchPointerEvent(event); 4439 maybeUpdatePointerIcon(event); 4440 mAttachInfo.mHandlingPointerEvent = false; 4441 if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) { 4442 mUnbufferedInputDispatch = true; 4443 if (mConsumeBatchedInputScheduled) { 4444 scheduleConsumeBatchedInputImmediately(); 4445 } 4446 } 4447 return handled ? FINISH_HANDLED : FORWARD; 4448 } 4449 4450 private void maybeUpdatePointerIcon(MotionEvent event) { 4451 if (event.getPointerCount() == 1 && event.isFromSource(InputDevice.SOURCE_MOUSE)) { 4452 if (event.getActionMasked() == MotionEvent.ACTION_HOVER_ENTER 4453 || event.getActionMasked() == MotionEvent.ACTION_HOVER_EXIT) { 4454 // Other apps or the window manager may change the icon type outside of 4455 // this app, therefore the icon type has to be reset on enter/exit event. 4456 mPointerIconType = PointerIcon.TYPE_NOT_SPECIFIED; 4457 } 4458 4459 if (event.getActionMasked() != MotionEvent.ACTION_HOVER_EXIT) { 4460 if (!updatePointerIcon(event) && 4461 event.getActionMasked() == MotionEvent.ACTION_HOVER_MOVE) { 4462 mPointerIconType = PointerIcon.TYPE_NOT_SPECIFIED; 4463 } 4464 } 4465 } 4466 } 4467 4468 private int processTrackballEvent(QueuedInputEvent q) { 4469 final MotionEvent event = (MotionEvent)q.mEvent; 4470 4471 if (mView.dispatchTrackballEvent(event)) { 4472 return FINISH_HANDLED; 4473 } 4474 return FORWARD; 4475 } 4476 4477 private int processGenericMotionEvent(QueuedInputEvent q) { 4478 final MotionEvent event = (MotionEvent)q.mEvent; 4479 4480 // Deliver the event to the view. 4481 if (mView.dispatchGenericMotionEvent(event)) { 4482 return FINISH_HANDLED; 4483 } 4484 return FORWARD; 4485 } 4486 } 4487 4488 private void resetPointerIcon(MotionEvent event) { 4489 mPointerIconType = PointerIcon.TYPE_NOT_SPECIFIED; 4490 updatePointerIcon(event); 4491 } 4492 4493 private boolean updatePointerIcon(MotionEvent event) { 4494 final int pointerIndex = 0; 4495 final float x = event.getX(pointerIndex); 4496 final float y = event.getY(pointerIndex); 4497 if (mView == null) { 4498 // E.g. click outside a popup to dismiss it 4499 Slog.d(mTag, "updatePointerIcon called after view was removed"); 4500 return false; 4501 } 4502 if (x < 0 || x >= mView.getWidth() || y < 0 || y >= mView.getHeight()) { 4503 // E.g. when moving window divider with mouse 4504 Slog.d(mTag, "updatePointerIcon called with position out of bounds"); 4505 return false; 4506 } 4507 final PointerIcon pointerIcon = mView.onResolvePointerIcon(event, pointerIndex); 4508 final int pointerType = (pointerIcon != null) ? 4509 pointerIcon.getType() : PointerIcon.TYPE_DEFAULT; 4510 4511 if (mPointerIconType != pointerType) { 4512 mPointerIconType = pointerType; 4513 if (mPointerIconType != PointerIcon.TYPE_CUSTOM) { 4514 mCustomPointerIcon = null; 4515 InputManager.getInstance().setPointerIconType(pointerType); 4516 return true; 4517 } 4518 } 4519 if (mPointerIconType == PointerIcon.TYPE_CUSTOM && 4520 !pointerIcon.equals(mCustomPointerIcon)) { 4521 mCustomPointerIcon = pointerIcon; 4522 InputManager.getInstance().setCustomPointerIcon(mCustomPointerIcon); 4523 } 4524 return true; 4525 } 4526 4527 /** 4528 * Performs synthesis of new input events from unhandled input events. 4529 */ 4530 final class SyntheticInputStage extends InputStage { 4531 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 4532 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 4533 private final SyntheticTouchNavigationHandler mTouchNavigation = 4534 new SyntheticTouchNavigationHandler(); 4535 private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler(); 4536 4537 public SyntheticInputStage() { 4538 super(null); 4539 } 4540 4541 @Override 4542 protected int onProcess(QueuedInputEvent q) { 4543 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 4544 if (q.mEvent instanceof MotionEvent) { 4545 final MotionEvent event = (MotionEvent)q.mEvent; 4546 final int source = event.getSource(); 4547 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4548 mTrackball.process(event); 4549 return FINISH_HANDLED; 4550 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4551 mJoystick.process(event); 4552 return FINISH_HANDLED; 4553 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4554 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4555 mTouchNavigation.process(event); 4556 return FINISH_HANDLED; 4557 } 4558 } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) { 4559 mKeyboard.process((KeyEvent)q.mEvent); 4560 return FINISH_HANDLED; 4561 } 4562 4563 return FORWARD; 4564 } 4565 4566 @Override 4567 protected void onDeliverToNext(QueuedInputEvent q) { 4568 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 4569 // Cancel related synthetic events if any prior stage has handled the event. 4570 if (q.mEvent instanceof MotionEvent) { 4571 final MotionEvent event = (MotionEvent)q.mEvent; 4572 final int source = event.getSource(); 4573 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4574 mTrackball.cancel(event); 4575 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4576 mJoystick.cancel(event); 4577 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4578 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4579 mTouchNavigation.cancel(event); 4580 } 4581 } 4582 } 4583 super.onDeliverToNext(q); 4584 } 4585 } 4586 4587 /** 4588 * Creates dpad events from unhandled trackball movements. 4589 */ 4590 final class SyntheticTrackballHandler { 4591 private final TrackballAxis mX = new TrackballAxis(); 4592 private final TrackballAxis mY = new TrackballAxis(); 4593 private long mLastTime; 4594 4595 public void process(MotionEvent event) { 4596 // Translate the trackball event into DPAD keys and try to deliver those. 4597 long curTime = SystemClock.uptimeMillis(); 4598 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 4599 // It has been too long since the last movement, 4600 // so restart at the beginning. 4601 mX.reset(0); 4602 mY.reset(0); 4603 mLastTime = curTime; 4604 } 4605 4606 final int action = event.getAction(); 4607 final int metaState = event.getMetaState(); 4608 switch (action) { 4609 case MotionEvent.ACTION_DOWN: 4610 mX.reset(2); 4611 mY.reset(2); 4612 enqueueInputEvent(new KeyEvent(curTime, curTime, 4613 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4614 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4615 InputDevice.SOURCE_KEYBOARD)); 4616 break; 4617 case MotionEvent.ACTION_UP: 4618 mX.reset(2); 4619 mY.reset(2); 4620 enqueueInputEvent(new KeyEvent(curTime, curTime, 4621 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4622 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4623 InputDevice.SOURCE_KEYBOARD)); 4624 break; 4625 } 4626 4627 if (DEBUG_TRACKBALL) Log.v(mTag, "TB X=" + mX.position + " step=" 4628 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 4629 + " move=" + event.getX() 4630 + " / Y=" + mY.position + " step=" 4631 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 4632 + " move=" + event.getY()); 4633 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 4634 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 4635 4636 // Generate DPAD events based on the trackball movement. 4637 // We pick the axis that has moved the most as the direction of 4638 // the DPAD. When we generate DPAD events for one axis, then the 4639 // other axis is reset -- we don't want to perform DPAD jumps due 4640 // to slight movements in the trackball when making major movements 4641 // along the other axis. 4642 int keycode = 0; 4643 int movement = 0; 4644 float accel = 1; 4645 if (xOff > yOff) { 4646 movement = mX.generate(); 4647 if (movement != 0) { 4648 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 4649 : KeyEvent.KEYCODE_DPAD_LEFT; 4650 accel = mX.acceleration; 4651 mY.reset(2); 4652 } 4653 } else if (yOff > 0) { 4654 movement = mY.generate(); 4655 if (movement != 0) { 4656 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 4657 : KeyEvent.KEYCODE_DPAD_UP; 4658 accel = mY.acceleration; 4659 mX.reset(2); 4660 } 4661 } 4662 4663 if (keycode != 0) { 4664 if (movement < 0) movement = -movement; 4665 int accelMovement = (int)(movement * accel); 4666 if (DEBUG_TRACKBALL) Log.v(mTag, "Move: movement=" + movement 4667 + " accelMovement=" + accelMovement 4668 + " accel=" + accel); 4669 if (accelMovement > movement) { 4670 if (DEBUG_TRACKBALL) Log.v(mTag, "Delivering fake DPAD: " 4671 + keycode); 4672 movement--; 4673 int repeatCount = accelMovement - movement; 4674 enqueueInputEvent(new KeyEvent(curTime, curTime, 4675 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4676 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4677 InputDevice.SOURCE_KEYBOARD)); 4678 } 4679 while (movement > 0) { 4680 if (DEBUG_TRACKBALL) Log.v(mTag, "Delivering fake DPAD: " 4681 + keycode); 4682 movement--; 4683 curTime = SystemClock.uptimeMillis(); 4684 enqueueInputEvent(new KeyEvent(curTime, curTime, 4685 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4686 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4687 InputDevice.SOURCE_KEYBOARD)); 4688 enqueueInputEvent(new KeyEvent(curTime, curTime, 4689 KeyEvent.ACTION_UP, keycode, 0, metaState, 4690 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4691 InputDevice.SOURCE_KEYBOARD)); 4692 } 4693 mLastTime = curTime; 4694 } 4695 } 4696 4697 public void cancel(MotionEvent event) { 4698 mLastTime = Integer.MIN_VALUE; 4699 4700 // If we reach this, we consumed a trackball event. 4701 // Because we will not translate the trackball event into a key event, 4702 // touch mode will not exit, so we exit touch mode here. 4703 if (mView != null && mAdded) { 4704 ensureTouchMode(false); 4705 } 4706 } 4707 } 4708 4709 /** 4710 * Maintains state information for a single trackball axis, generating 4711 * discrete (DPAD) movements based on raw trackball motion. 4712 */ 4713 static final class TrackballAxis { 4714 /** 4715 * The maximum amount of acceleration we will apply. 4716 */ 4717 static final float MAX_ACCELERATION = 20; 4718 4719 /** 4720 * The maximum amount of time (in milliseconds) between events in order 4721 * for us to consider the user to be doing fast trackball movements, 4722 * and thus apply an acceleration. 4723 */ 4724 static final long FAST_MOVE_TIME = 150; 4725 4726 /** 4727 * Scaling factor to the time (in milliseconds) between events to how 4728 * much to multiple/divide the current acceleration. When movement 4729 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4730 * FAST_MOVE_TIME it divides it. 4731 */ 4732 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4733 4734 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4735 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4736 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4737 4738 float position; 4739 float acceleration = 1; 4740 long lastMoveTime = 0; 4741 int step; 4742 int dir; 4743 int nonAccelMovement; 4744 4745 void reset(int _step) { 4746 position = 0; 4747 acceleration = 1; 4748 lastMoveTime = 0; 4749 step = _step; 4750 dir = 0; 4751 } 4752 4753 /** 4754 * Add trackball movement into the state. If the direction of movement 4755 * has been reversed, the state is reset before adding the 4756 * movement (so that you don't have to compensate for any previously 4757 * collected movement before see the result of the movement in the 4758 * new direction). 4759 * 4760 * @return Returns the absolute value of the amount of movement 4761 * collected so far. 4762 */ 4763 float collect(float off, long time, String axis) { 4764 long normTime; 4765 if (off > 0) { 4766 normTime = (long)(off * FAST_MOVE_TIME); 4767 if (dir < 0) { 4768 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4769 position = 0; 4770 step = 0; 4771 acceleration = 1; 4772 lastMoveTime = 0; 4773 } 4774 dir = 1; 4775 } else if (off < 0) { 4776 normTime = (long)((-off) * FAST_MOVE_TIME); 4777 if (dir > 0) { 4778 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4779 position = 0; 4780 step = 0; 4781 acceleration = 1; 4782 lastMoveTime = 0; 4783 } 4784 dir = -1; 4785 } else { 4786 normTime = 0; 4787 } 4788 4789 // The number of milliseconds between each movement that is 4790 // considered "normal" and will not result in any acceleration 4791 // or deceleration, scaled by the offset we have here. 4792 if (normTime > 0) { 4793 long delta = time - lastMoveTime; 4794 lastMoveTime = time; 4795 float acc = acceleration; 4796 if (delta < normTime) { 4797 // The user is scrolling rapidly, so increase acceleration. 4798 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4799 if (scale > 1) acc *= scale; 4800 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4801 + off + " normTime=" + normTime + " delta=" + delta 4802 + " scale=" + scale + " acc=" + acc); 4803 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4804 } else { 4805 // The user is scrolling slowly, so decrease acceleration. 4806 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4807 if (scale > 1) acc /= scale; 4808 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4809 + off + " normTime=" + normTime + " delta=" + delta 4810 + " scale=" + scale + " acc=" + acc); 4811 acceleration = acc > 1 ? acc : 1; 4812 } 4813 } 4814 position += off; 4815 return Math.abs(position); 4816 } 4817 4818 /** 4819 * Generate the number of discrete movement events appropriate for 4820 * the currently collected trackball movement. 4821 * 4822 * @return Returns the number of discrete movements, either positive 4823 * or negative, or 0 if there is not enough trackball movement yet 4824 * for a discrete movement. 4825 */ 4826 int generate() { 4827 int movement = 0; 4828 nonAccelMovement = 0; 4829 do { 4830 final int dir = position >= 0 ? 1 : -1; 4831 switch (step) { 4832 // If we are going to execute the first step, then we want 4833 // to do this as soon as possible instead of waiting for 4834 // a full movement, in order to make things look responsive. 4835 case 0: 4836 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4837 return movement; 4838 } 4839 movement += dir; 4840 nonAccelMovement += dir; 4841 step = 1; 4842 break; 4843 // If we have generated the first movement, then we need 4844 // to wait for the second complete trackball motion before 4845 // generating the second discrete movement. 4846 case 1: 4847 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4848 return movement; 4849 } 4850 movement += dir; 4851 nonAccelMovement += dir; 4852 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4853 step = 2; 4854 break; 4855 // After the first two, we generate discrete movements 4856 // consistently with the trackball, applying an acceleration 4857 // if the trackball is moving quickly. This is a simple 4858 // acceleration on top of what we already compute based 4859 // on how quickly the wheel is being turned, to apply 4860 // a longer increasing acceleration to continuous movement 4861 // in one direction. 4862 default: 4863 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4864 return movement; 4865 } 4866 movement += dir; 4867 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4868 float acc = acceleration; 4869 acc *= 1.1f; 4870 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4871 break; 4872 } 4873 } while (true); 4874 } 4875 } 4876 4877 /** 4878 * Creates dpad events from unhandled joystick movements. 4879 */ 4880 final class SyntheticJoystickHandler extends Handler { 4881 private final static String TAG = "SyntheticJoystickHandler"; 4882 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4883 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4884 4885 private int mLastXDirection; 4886 private int mLastYDirection; 4887 private int mLastXKeyCode; 4888 private int mLastYKeyCode; 4889 4890 public SyntheticJoystickHandler() { 4891 super(true); 4892 } 4893 4894 @Override 4895 public void handleMessage(Message msg) { 4896 switch (msg.what) { 4897 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4898 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4899 KeyEvent oldEvent = (KeyEvent)msg.obj; 4900 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4901 SystemClock.uptimeMillis(), 4902 oldEvent.getRepeatCount() + 1); 4903 if (mAttachInfo.mHasWindowFocus) { 4904 enqueueInputEvent(e); 4905 Message m = obtainMessage(msg.what, e); 4906 m.setAsynchronous(true); 4907 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4908 } 4909 } break; 4910 } 4911 } 4912 4913 public void process(MotionEvent event) { 4914 switch(event.getActionMasked()) { 4915 case MotionEvent.ACTION_CANCEL: 4916 cancel(event); 4917 break; 4918 case MotionEvent.ACTION_MOVE: 4919 update(event, true); 4920 break; 4921 default: 4922 Log.w(mTag, "Unexpected action: " + event.getActionMasked()); 4923 } 4924 } 4925 4926 private void cancel(MotionEvent event) { 4927 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4928 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4929 update(event, false); 4930 } 4931 4932 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4933 final long time = event.getEventTime(); 4934 final int metaState = event.getMetaState(); 4935 final int deviceId = event.getDeviceId(); 4936 final int source = event.getSource(); 4937 4938 int xDirection = joystickAxisValueToDirection( 4939 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4940 if (xDirection == 0) { 4941 xDirection = joystickAxisValueToDirection(event.getX()); 4942 } 4943 4944 int yDirection = joystickAxisValueToDirection( 4945 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4946 if (yDirection == 0) { 4947 yDirection = joystickAxisValueToDirection(event.getY()); 4948 } 4949 4950 if (xDirection != mLastXDirection) { 4951 if (mLastXKeyCode != 0) { 4952 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4953 enqueueInputEvent(new KeyEvent(time, time, 4954 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4955 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4956 mLastXKeyCode = 0; 4957 } 4958 4959 mLastXDirection = xDirection; 4960 4961 if (xDirection != 0 && synthesizeNewKeys) { 4962 mLastXKeyCode = xDirection > 0 4963 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4964 final KeyEvent e = new KeyEvent(time, time, 4965 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4966 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4967 enqueueInputEvent(e); 4968 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4969 m.setAsynchronous(true); 4970 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4971 } 4972 } 4973 4974 if (yDirection != mLastYDirection) { 4975 if (mLastYKeyCode != 0) { 4976 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4977 enqueueInputEvent(new KeyEvent(time, time, 4978 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4979 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4980 mLastYKeyCode = 0; 4981 } 4982 4983 mLastYDirection = yDirection; 4984 4985 if (yDirection != 0 && synthesizeNewKeys) { 4986 mLastYKeyCode = yDirection > 0 4987 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4988 final KeyEvent e = new KeyEvent(time, time, 4989 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4990 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4991 enqueueInputEvent(e); 4992 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4993 m.setAsynchronous(true); 4994 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4995 } 4996 } 4997 } 4998 4999 private int joystickAxisValueToDirection(float value) { 5000 if (value >= 0.5f) { 5001 return 1; 5002 } else if (value <= -0.5f) { 5003 return -1; 5004 } else { 5005 return 0; 5006 } 5007 } 5008 } 5009 5010 /** 5011 * Creates dpad events from unhandled touch navigation movements. 5012 */ 5013 final class SyntheticTouchNavigationHandler extends Handler { 5014 private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 5015 private static final boolean LOCAL_DEBUG = false; 5016 5017 // Assumed nominal width and height in millimeters of a touch navigation pad, 5018 // if no resolution information is available from the input system. 5019 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 5020 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 5021 5022 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 5023 5024 // The nominal distance traveled to move by one unit. 5025 private static final int TICK_DISTANCE_MILLIMETERS = 12; 5026 5027 // Minimum and maximum fling velocity in ticks per second. 5028 // The minimum velocity should be set such that we perform enough ticks per 5029 // second that the fling appears to be fluid. For example, if we set the minimum 5030 // to 2 ticks per second, then there may be up to half a second delay between the next 5031 // to last and last ticks which is noticeably discrete and jerky. This value should 5032 // probably not be set to anything less than about 4. 5033 // If fling accuracy is a problem then consider tuning the tick distance instead. 5034 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 5035 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 5036 5037 // Fling velocity decay factor applied after each new key is emitted. 5038 // This parameter controls the deceleration and overall duration of the fling. 5039 // The fling stops automatically when its velocity drops below the minimum 5040 // fling velocity defined above. 5041 private static final float FLING_TICK_DECAY = 0.8f; 5042 5043 /* The input device that we are tracking. */ 5044 5045 private int mCurrentDeviceId = -1; 5046 private int mCurrentSource; 5047 private boolean mCurrentDeviceSupported; 5048 5049 /* Configuration for the current input device. */ 5050 5051 // The scaled tick distance. A movement of this amount should generally translate 5052 // into a single dpad event in a given direction. 5053 private float mConfigTickDistance; 5054 5055 // The minimum and maximum scaled fling velocity. 5056 private float mConfigMinFlingVelocity; 5057 private float mConfigMaxFlingVelocity; 5058 5059 /* Tracking state. */ 5060 5061 // The velocity tracker for detecting flings. 5062 private VelocityTracker mVelocityTracker; 5063 5064 // The active pointer id, or -1 if none. 5065 private int mActivePointerId = -1; 5066 5067 // Location where tracking started. 5068 private float mStartX; 5069 private float mStartY; 5070 5071 // Most recently observed position. 5072 private float mLastX; 5073 private float mLastY; 5074 5075 // Accumulated movement delta since the last direction key was sent. 5076 private float mAccumulatedX; 5077 private float mAccumulatedY; 5078 5079 // Set to true if any movement was delivered to the app. 5080 // Implies that tap slop was exceeded. 5081 private boolean mConsumedMovement; 5082 5083 // The most recently sent key down event. 5084 // The keycode remains set until the direction changes or a fling ends 5085 // so that repeated key events may be generated as required. 5086 private long mPendingKeyDownTime; 5087 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 5088 private int mPendingKeyRepeatCount; 5089 private int mPendingKeyMetaState; 5090 5091 // The current fling velocity while a fling is in progress. 5092 private boolean mFlinging; 5093 private float mFlingVelocity; 5094 5095 public SyntheticTouchNavigationHandler() { 5096 super(true); 5097 } 5098 5099 public void process(MotionEvent event) { 5100 // Update the current device information. 5101 final long time = event.getEventTime(); 5102 final int deviceId = event.getDeviceId(); 5103 final int source = event.getSource(); 5104 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 5105 finishKeys(time); 5106 finishTracking(time); 5107 mCurrentDeviceId = deviceId; 5108 mCurrentSource = source; 5109 mCurrentDeviceSupported = false; 5110 InputDevice device = event.getDevice(); 5111 if (device != null) { 5112 // In order to support an input device, we must know certain 5113 // characteristics about it, such as its size and resolution. 5114 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 5115 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 5116 if (xRange != null && yRange != null) { 5117 mCurrentDeviceSupported = true; 5118 5119 // Infer the resolution if it not actually known. 5120 float xRes = xRange.getResolution(); 5121 if (xRes <= 0) { 5122 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 5123 } 5124 float yRes = yRange.getResolution(); 5125 if (yRes <= 0) { 5126 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 5127 } 5128 float nominalRes = (xRes + yRes) * 0.5f; 5129 5130 // Precompute all of the configuration thresholds we will need. 5131 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 5132 mConfigMinFlingVelocity = 5133 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 5134 mConfigMaxFlingVelocity = 5135 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 5136 5137 if (LOCAL_DEBUG) { 5138 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 5139 + " (" + Integer.toHexString(mCurrentSource) + "): " 5140 + ", mConfigTickDistance=" + mConfigTickDistance 5141 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 5142 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 5143 } 5144 } 5145 } 5146 } 5147 if (!mCurrentDeviceSupported) { 5148 return; 5149 } 5150 5151 // Handle the event. 5152 final int action = event.getActionMasked(); 5153 switch (action) { 5154 case MotionEvent.ACTION_DOWN: { 5155 boolean caughtFling = mFlinging; 5156 finishKeys(time); 5157 finishTracking(time); 5158 mActivePointerId = event.getPointerId(0); 5159 mVelocityTracker = VelocityTracker.obtain(); 5160 mVelocityTracker.addMovement(event); 5161 mStartX = event.getX(); 5162 mStartY = event.getY(); 5163 mLastX = mStartX; 5164 mLastY = mStartY; 5165 mAccumulatedX = 0; 5166 mAccumulatedY = 0; 5167 5168 // If we caught a fling, then pretend that the tap slop has already 5169 // been exceeded to suppress taps whose only purpose is to stop the fling. 5170 mConsumedMovement = caughtFling; 5171 break; 5172 } 5173 5174 case MotionEvent.ACTION_MOVE: 5175 case MotionEvent.ACTION_UP: { 5176 if (mActivePointerId < 0) { 5177 break; 5178 } 5179 final int index = event.findPointerIndex(mActivePointerId); 5180 if (index < 0) { 5181 finishKeys(time); 5182 finishTracking(time); 5183 break; 5184 } 5185 5186 mVelocityTracker.addMovement(event); 5187 final float x = event.getX(index); 5188 final float y = event.getY(index); 5189 mAccumulatedX += x - mLastX; 5190 mAccumulatedY += y - mLastY; 5191 mLastX = x; 5192 mLastY = y; 5193 5194 // Consume any accumulated movement so far. 5195 final int metaState = event.getMetaState(); 5196 consumeAccumulatedMovement(time, metaState); 5197 5198 // Detect taps and flings. 5199 if (action == MotionEvent.ACTION_UP) { 5200 if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 5201 // It might be a fling. 5202 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 5203 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 5204 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 5205 if (!startFling(time, vx, vy)) { 5206 finishKeys(time); 5207 } 5208 } 5209 finishTracking(time); 5210 } 5211 break; 5212 } 5213 5214 case MotionEvent.ACTION_CANCEL: { 5215 finishKeys(time); 5216 finishTracking(time); 5217 break; 5218 } 5219 } 5220 } 5221 5222 public void cancel(MotionEvent event) { 5223 if (mCurrentDeviceId == event.getDeviceId() 5224 && mCurrentSource == event.getSource()) { 5225 final long time = event.getEventTime(); 5226 finishKeys(time); 5227 finishTracking(time); 5228 } 5229 } 5230 5231 private void finishKeys(long time) { 5232 cancelFling(); 5233 sendKeyUp(time); 5234 } 5235 5236 private void finishTracking(long time) { 5237 if (mActivePointerId >= 0) { 5238 mActivePointerId = -1; 5239 mVelocityTracker.recycle(); 5240 mVelocityTracker = null; 5241 } 5242 } 5243 5244 private void consumeAccumulatedMovement(long time, int metaState) { 5245 final float absX = Math.abs(mAccumulatedX); 5246 final float absY = Math.abs(mAccumulatedY); 5247 if (absX >= absY) { 5248 if (absX >= mConfigTickDistance) { 5249 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 5250 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 5251 mAccumulatedY = 0; 5252 mConsumedMovement = true; 5253 } 5254 } else { 5255 if (absY >= mConfigTickDistance) { 5256 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 5257 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 5258 mAccumulatedX = 0; 5259 mConsumedMovement = true; 5260 } 5261 } 5262 } 5263 5264 private float consumeAccumulatedMovement(long time, int metaState, 5265 float accumulator, int negativeKeyCode, int positiveKeyCode) { 5266 while (accumulator <= -mConfigTickDistance) { 5267 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 5268 accumulator += mConfigTickDistance; 5269 } 5270 while (accumulator >= mConfigTickDistance) { 5271 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 5272 accumulator -= mConfigTickDistance; 5273 } 5274 return accumulator; 5275 } 5276 5277 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 5278 if (mPendingKeyCode != keyCode) { 5279 sendKeyUp(time); 5280 mPendingKeyDownTime = time; 5281 mPendingKeyCode = keyCode; 5282 mPendingKeyRepeatCount = 0; 5283 } else { 5284 mPendingKeyRepeatCount += 1; 5285 } 5286 mPendingKeyMetaState = metaState; 5287 5288 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 5289 // but it doesn't quite make sense when simulating the events in this way. 5290 if (LOCAL_DEBUG) { 5291 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 5292 + ", repeatCount=" + mPendingKeyRepeatCount 5293 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 5294 } 5295 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 5296 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 5297 mPendingKeyMetaState, mCurrentDeviceId, 5298 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 5299 } 5300 5301 private void sendKeyUp(long time) { 5302 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 5303 if (LOCAL_DEBUG) { 5304 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 5305 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 5306 } 5307 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 5308 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 5309 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 5310 mCurrentSource)); 5311 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 5312 } 5313 } 5314 5315 private boolean startFling(long time, float vx, float vy) { 5316 if (LOCAL_DEBUG) { 5317 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 5318 + ", min=" + mConfigMinFlingVelocity); 5319 } 5320 5321 // Flings must be oriented in the same direction as the preceding movements. 5322 switch (mPendingKeyCode) { 5323 case KeyEvent.KEYCODE_DPAD_LEFT: 5324 if (-vx >= mConfigMinFlingVelocity 5325 && Math.abs(vy) < mConfigMinFlingVelocity) { 5326 mFlingVelocity = -vx; 5327 break; 5328 } 5329 return false; 5330 5331 case KeyEvent.KEYCODE_DPAD_RIGHT: 5332 if (vx >= mConfigMinFlingVelocity 5333 && Math.abs(vy) < mConfigMinFlingVelocity) { 5334 mFlingVelocity = vx; 5335 break; 5336 } 5337 return false; 5338 5339 case KeyEvent.KEYCODE_DPAD_UP: 5340 if (-vy >= mConfigMinFlingVelocity 5341 && Math.abs(vx) < mConfigMinFlingVelocity) { 5342 mFlingVelocity = -vy; 5343 break; 5344 } 5345 return false; 5346 5347 case KeyEvent.KEYCODE_DPAD_DOWN: 5348 if (vy >= mConfigMinFlingVelocity 5349 && Math.abs(vx) < mConfigMinFlingVelocity) { 5350 mFlingVelocity = vy; 5351 break; 5352 } 5353 return false; 5354 } 5355 5356 // Post the first fling event. 5357 mFlinging = postFling(time); 5358 return mFlinging; 5359 } 5360 5361 private boolean postFling(long time) { 5362 // The idea here is to estimate the time when the pointer would have 5363 // traveled one tick distance unit given the current fling velocity. 5364 // This effect creates continuity of motion. 5365 if (mFlingVelocity >= mConfigMinFlingVelocity) { 5366 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 5367 postAtTime(mFlingRunnable, time + delay); 5368 if (LOCAL_DEBUG) { 5369 Log.d(LOCAL_TAG, "Posted fling: velocity=" 5370 + mFlingVelocity + ", delay=" + delay 5371 + ", keyCode=" + mPendingKeyCode); 5372 } 5373 return true; 5374 } 5375 return false; 5376 } 5377 5378 private void cancelFling() { 5379 if (mFlinging) { 5380 removeCallbacks(mFlingRunnable); 5381 mFlinging = false; 5382 } 5383 } 5384 5385 private final Runnable mFlingRunnable = new Runnable() { 5386 @Override 5387 public void run() { 5388 final long time = SystemClock.uptimeMillis(); 5389 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 5390 mFlingVelocity *= FLING_TICK_DECAY; 5391 if (!postFling(time)) { 5392 mFlinging = false; 5393 finishKeys(time); 5394 } 5395 } 5396 }; 5397 } 5398 5399 final class SyntheticKeyboardHandler { 5400 public void process(KeyEvent event) { 5401 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) { 5402 return; 5403 } 5404 5405 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5406 final int keyCode = event.getKeyCode(); 5407 final int metaState = event.getMetaState(); 5408 5409 // Check for fallback actions specified by the key character map. 5410 KeyCharacterMap.FallbackAction fallbackAction = 5411 kcm.getFallbackAction(keyCode, metaState); 5412 if (fallbackAction != null) { 5413 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5414 KeyEvent fallbackEvent = KeyEvent.obtain( 5415 event.getDownTime(), event.getEventTime(), 5416 event.getAction(), fallbackAction.keyCode, 5417 event.getRepeatCount(), fallbackAction.metaState, 5418 event.getDeviceId(), event.getScanCode(), 5419 flags, event.getSource(), null); 5420 fallbackAction.recycle(); 5421 enqueueInputEvent(fallbackEvent); 5422 } 5423 } 5424 } 5425 5426 /** 5427 * Returns true if the key is used for keyboard navigation. 5428 * @param keyEvent The key event. 5429 * @return True if the key is used for keyboard navigation. 5430 */ 5431 private static boolean isNavigationKey(KeyEvent keyEvent) { 5432 switch (keyEvent.getKeyCode()) { 5433 case KeyEvent.KEYCODE_DPAD_LEFT: 5434 case KeyEvent.KEYCODE_DPAD_RIGHT: 5435 case KeyEvent.KEYCODE_DPAD_UP: 5436 case KeyEvent.KEYCODE_DPAD_DOWN: 5437 case KeyEvent.KEYCODE_DPAD_CENTER: 5438 case KeyEvent.KEYCODE_PAGE_UP: 5439 case KeyEvent.KEYCODE_PAGE_DOWN: 5440 case KeyEvent.KEYCODE_MOVE_HOME: 5441 case KeyEvent.KEYCODE_MOVE_END: 5442 case KeyEvent.KEYCODE_TAB: 5443 case KeyEvent.KEYCODE_SPACE: 5444 case KeyEvent.KEYCODE_ENTER: 5445 return true; 5446 } 5447 return false; 5448 } 5449 5450 /** 5451 * Returns true if the key is used for typing. 5452 * @param keyEvent The key event. 5453 * @return True if the key is used for typing. 5454 */ 5455 private static boolean isTypingKey(KeyEvent keyEvent) { 5456 return keyEvent.getUnicodeChar() > 0; 5457 } 5458 5459 /** 5460 * See if the key event means we should leave touch mode (and leave touch mode if so). 5461 * @param event The key event. 5462 * @return Whether this key event should be consumed (meaning the act of 5463 * leaving touch mode alone is considered the event). 5464 */ 5465 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 5466 // Only relevant in touch mode. 5467 if (!mAttachInfo.mInTouchMode) { 5468 return false; 5469 } 5470 5471 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 5472 final int action = event.getAction(); 5473 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 5474 return false; 5475 } 5476 5477 // Don't leave touch mode if the IME told us not to. 5478 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 5479 return false; 5480 } 5481 5482 // If the key can be used for keyboard navigation then leave touch mode 5483 // and select a focused view if needed (in ensureTouchMode). 5484 // When a new focused view is selected, we consume the navigation key because 5485 // navigation doesn't make much sense unless a view already has focus so 5486 // the key's purpose is to set focus. 5487 if (isNavigationKey(event)) { 5488 return ensureTouchMode(false); 5489 } 5490 5491 // If the key can be used for typing then leave touch mode 5492 // and select a focused view if needed (in ensureTouchMode). 5493 // Always allow the view to process the typing key. 5494 if (isTypingKey(event)) { 5495 ensureTouchMode(false); 5496 return false; 5497 } 5498 5499 return false; 5500 } 5501 5502 /* drag/drop */ 5503 void setLocalDragState(Object obj) { 5504 mLocalDragState = obj; 5505 } 5506 5507 private void handleDragEvent(DragEvent event) { 5508 // From the root, only drag start/end/location are dispatched. entered/exited 5509 // are determined and dispatched by the viewgroup hierarchy, who then report 5510 // that back here for ultimate reporting back to the framework. 5511 if (mView != null && mAdded) { 5512 final int what = event.mAction; 5513 5514 // Cache the drag description when the operation starts, then fill it in 5515 // on subsequent calls as a convenience 5516 if (what == DragEvent.ACTION_DRAG_STARTED) { 5517 mCurrentDragView = null; // Start the current-recipient tracking 5518 mDragDescription = event.mClipDescription; 5519 } else { 5520 event.mClipDescription = mDragDescription; 5521 } 5522 5523 if (what == DragEvent.ACTION_DRAG_EXITED) { 5524 // A direct EXITED event means that the window manager knows we've just crossed 5525 // a window boundary, so the current drag target within this one must have 5526 // just been exited. Send the EXITED notification to the current drag view, if any. 5527 if (View.sCascadedDragDrop) { 5528 mView.dispatchDragEnterExitInPreN(event); 5529 } 5530 setDragFocus(null, event); 5531 } else { 5532 // For events with a [screen] location, translate into window coordinates 5533 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 5534 mDragPoint.set(event.mX, event.mY); 5535 if (mTranslator != null) { 5536 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 5537 } 5538 5539 if (mCurScrollY != 0) { 5540 mDragPoint.offset(0, mCurScrollY); 5541 } 5542 5543 event.mX = mDragPoint.x; 5544 event.mY = mDragPoint.y; 5545 } 5546 5547 // Remember who the current drag target is pre-dispatch 5548 final View prevDragView = mCurrentDragView; 5549 5550 // Now dispatch the drag/drop event 5551 boolean result = mView.dispatchDragEvent(event); 5552 5553 if (what == DragEvent.ACTION_DRAG_LOCATION && !event.mEventHandlerWasCalled) { 5554 // If the LOCATION event wasn't delivered to any handler, no view now has a drag 5555 // focus. 5556 setDragFocus(null, event); 5557 } 5558 5559 // If we changed apparent drag target, tell the OS about it 5560 if (prevDragView != mCurrentDragView) { 5561 try { 5562 if (prevDragView != null) { 5563 mWindowSession.dragRecipientExited(mWindow); 5564 } 5565 if (mCurrentDragView != null) { 5566 mWindowSession.dragRecipientEntered(mWindow); 5567 } 5568 } catch (RemoteException e) { 5569 Slog.e(mTag, "Unable to note drag target change"); 5570 } 5571 } 5572 5573 // Report the drop result when we're done 5574 if (what == DragEvent.ACTION_DROP) { 5575 mDragDescription = null; 5576 try { 5577 Log.i(mTag, "Reporting drop result: " + result); 5578 mWindowSession.reportDropResult(mWindow, result); 5579 } catch (RemoteException e) { 5580 Log.e(mTag, "Unable to report drop result"); 5581 } 5582 } 5583 5584 // When the drag operation ends, reset drag-related state 5585 if (what == DragEvent.ACTION_DRAG_ENDED) { 5586 mCurrentDragView = null; 5587 setLocalDragState(null); 5588 mAttachInfo.mDragToken = null; 5589 if (mAttachInfo.mDragSurface != null) { 5590 mAttachInfo.mDragSurface.release(); 5591 mAttachInfo.mDragSurface = null; 5592 } 5593 } 5594 } 5595 } 5596 event.recycle(); 5597 } 5598 5599 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 5600 if (mSeq != args.seq) { 5601 // The sequence has changed, so we need to update our value and make 5602 // sure to do a traversal afterward so the window manager is given our 5603 // most recent data. 5604 mSeq = args.seq; 5605 mAttachInfo.mForceReportNewAttributes = true; 5606 scheduleTraversals(); 5607 } 5608 if (mView == null) return; 5609 if (args.localChanges != 0) { 5610 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 5611 } 5612 5613 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 5614 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 5615 mAttachInfo.mGlobalSystemUiVisibility = visibility; 5616 mView.dispatchSystemUiVisibilityChanged(visibility); 5617 } 5618 } 5619 5620 public void handleDispatchWindowShown() { 5621 mAttachInfo.mTreeObserver.dispatchOnWindowShown(); 5622 } 5623 5624 public void handleRequestKeyboardShortcuts(IResultReceiver receiver, int deviceId) { 5625 Bundle data = new Bundle(); 5626 ArrayList<KeyboardShortcutGroup> list = new ArrayList<>(); 5627 if (mView != null) { 5628 mView.requestKeyboardShortcuts(list, deviceId); 5629 } 5630 data.putParcelableArrayList(WindowManager.PARCEL_KEY_SHORTCUTS_ARRAY, list); 5631 try { 5632 receiver.send(0, data); 5633 } catch (RemoteException e) { 5634 } 5635 } 5636 5637 public void getLastTouchPoint(Point outLocation) { 5638 outLocation.x = (int) mLastTouchPoint.x; 5639 outLocation.y = (int) mLastTouchPoint.y; 5640 } 5641 5642 public int getLastTouchSource() { 5643 return mLastTouchSource; 5644 } 5645 5646 public void setDragFocus(View newDragTarget, DragEvent event) { 5647 if (mCurrentDragView != newDragTarget && !View.sCascadedDragDrop) { 5648 // Send EXITED and ENTERED notifications to the old and new drag focus views. 5649 5650 final float tx = event.mX; 5651 final float ty = event.mY; 5652 final int action = event.mAction; 5653 // Position should not be available for ACTION_DRAG_ENTERED and ACTION_DRAG_EXITED. 5654 event.mX = 0; 5655 event.mY = 0; 5656 5657 if (mCurrentDragView != null) { 5658 event.mAction = DragEvent.ACTION_DRAG_EXITED; 5659 mCurrentDragView.callDragEventHandler(event); 5660 } 5661 5662 if (newDragTarget != null) { 5663 event.mAction = DragEvent.ACTION_DRAG_ENTERED; 5664 newDragTarget.callDragEventHandler(event); 5665 } 5666 5667 event.mAction = action; 5668 event.mX = tx; 5669 event.mY = ty; 5670 } 5671 5672 mCurrentDragView = newDragTarget; 5673 } 5674 5675 private AudioManager getAudioManager() { 5676 if (mView == null) { 5677 throw new IllegalStateException("getAudioManager called when there is no mView"); 5678 } 5679 if (mAudioManager == null) { 5680 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 5681 } 5682 return mAudioManager; 5683 } 5684 5685 public AccessibilityInteractionController getAccessibilityInteractionController() { 5686 if (mView == null) { 5687 throw new IllegalStateException("getAccessibilityInteractionController" 5688 + " called when there is no mView"); 5689 } 5690 if (mAccessibilityInteractionController == null) { 5691 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 5692 } 5693 return mAccessibilityInteractionController; 5694 } 5695 5696 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 5697 boolean insetsPending) throws RemoteException { 5698 5699 float appScale = mAttachInfo.mApplicationScale; 5700 boolean restore = false; 5701 if (params != null && mTranslator != null) { 5702 restore = true; 5703 params.backup(); 5704 mTranslator.translateWindowLayout(params); 5705 } 5706 if (params != null) { 5707 if (DBG) Log.d(mTag, "WindowLayout in layoutWindow:" + params); 5708 } 5709 mPendingConfiguration.seq = 0; 5710 //Log.d(mTag, ">>>>>> CALLING relayout"); 5711 if (params != null && mOrigWindowType != params.type) { 5712 // For compatibility with old apps, don't crash here. 5713 if (mTargetSdkVersion < Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 5714 Slog.w(mTag, "Window type can not be changed after " 5715 + "the window is added; ignoring change of " + mView); 5716 params.type = mOrigWindowType; 5717 } 5718 } 5719 int relayoutResult = mWindowSession.relayout( 5720 mWindow, mSeq, params, 5721 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 5722 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 5723 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 5724 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 5725 mPendingStableInsets, mPendingOutsets, mPendingBackDropFrame, mPendingConfiguration, 5726 mSurface); 5727 5728 mPendingAlwaysConsumeNavBar = 5729 (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_CONSUME_ALWAYS_NAV_BAR) != 0; 5730 5731 //Log.d(mTag, "<<<<<< BACK FROM relayout"); 5732 if (restore) { 5733 params.restore(); 5734 } 5735 5736 if (mTranslator != null) { 5737 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5738 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5739 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5740 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5741 mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets); 5742 } 5743 return relayoutResult; 5744 } 5745 5746 /** 5747 * {@inheritDoc} 5748 */ 5749 @Override 5750 public void playSoundEffect(int effectId) { 5751 checkThread(); 5752 5753 try { 5754 final AudioManager audioManager = getAudioManager(); 5755 5756 switch (effectId) { 5757 case SoundEffectConstants.CLICK: 5758 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5759 return; 5760 case SoundEffectConstants.NAVIGATION_DOWN: 5761 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5762 return; 5763 case SoundEffectConstants.NAVIGATION_LEFT: 5764 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5765 return; 5766 case SoundEffectConstants.NAVIGATION_RIGHT: 5767 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5768 return; 5769 case SoundEffectConstants.NAVIGATION_UP: 5770 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5771 return; 5772 default: 5773 throw new IllegalArgumentException("unknown effect id " + effectId + 5774 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5775 } 5776 } catch (IllegalStateException e) { 5777 // Exception thrown by getAudioManager() when mView is null 5778 Log.e(mTag, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5779 e.printStackTrace(); 5780 } 5781 } 5782 5783 /** 5784 * {@inheritDoc} 5785 */ 5786 @Override 5787 public boolean performHapticFeedback(int effectId, boolean always) { 5788 try { 5789 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5790 } catch (RemoteException e) { 5791 return false; 5792 } 5793 } 5794 5795 /** 5796 * {@inheritDoc} 5797 */ 5798 @Override 5799 public View focusSearch(View focused, int direction) { 5800 checkThread(); 5801 if (!(mView instanceof ViewGroup)) { 5802 return null; 5803 } 5804 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5805 } 5806 5807 public void debug() { 5808 mView.debug(); 5809 } 5810 5811 public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 5812 String innerPrefix = prefix + " "; 5813 writer.print(prefix); writer.println("ViewRoot:"); 5814 writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded); 5815 writer.print(" mRemoved="); writer.println(mRemoved); 5816 writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled="); 5817 writer.println(mConsumeBatchedInputScheduled); 5818 writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled="); 5819 writer.println(mConsumeBatchedInputImmediatelyScheduled); 5820 writer.print(innerPrefix); writer.print("mPendingInputEventCount="); 5821 writer.println(mPendingInputEventCount); 5822 writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled="); 5823 writer.println(mProcessInputEventsScheduled); 5824 writer.print(innerPrefix); writer.print("mTraversalScheduled="); 5825 writer.print(mTraversalScheduled); 5826 writer.print(innerPrefix); writer.print("mIsAmbientMode="); 5827 writer.print(mIsAmbientMode); 5828 if (mTraversalScheduled) { 5829 writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")"); 5830 } else { 5831 writer.println(); 5832 } 5833 mFirstInputStage.dump(innerPrefix, writer); 5834 5835 mChoreographer.dump(prefix, writer); 5836 5837 writer.print(prefix); writer.println("View Hierarchy:"); 5838 dumpViewHierarchy(innerPrefix, writer, mView); 5839 } 5840 5841 private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) { 5842 writer.print(prefix); 5843 if (view == null) { 5844 writer.println("null"); 5845 return; 5846 } 5847 writer.println(view.toString()); 5848 if (!(view instanceof ViewGroup)) { 5849 return; 5850 } 5851 ViewGroup grp = (ViewGroup)view; 5852 final int N = grp.getChildCount(); 5853 if (N <= 0) { 5854 return; 5855 } 5856 prefix = prefix + " "; 5857 for (int i=0; i<N; i++) { 5858 dumpViewHierarchy(prefix, writer, grp.getChildAt(i)); 5859 } 5860 } 5861 5862 public void dumpGfxInfo(int[] info) { 5863 info[0] = info[1] = 0; 5864 if (mView != null) { 5865 getGfxInfo(mView, info); 5866 } 5867 } 5868 5869 private static void getGfxInfo(View view, int[] info) { 5870 RenderNode renderNode = view.mRenderNode; 5871 info[0]++; 5872 if (renderNode != null) { 5873 info[1] += renderNode.getDebugSize(); 5874 } 5875 5876 if (view instanceof ViewGroup) { 5877 ViewGroup group = (ViewGroup) view; 5878 5879 int count = group.getChildCount(); 5880 for (int i = 0; i < count; i++) { 5881 getGfxInfo(group.getChildAt(i), info); 5882 } 5883 } 5884 } 5885 5886 /** 5887 * @param immediate True, do now if not in traversal. False, put on queue and do later. 5888 * @return True, request has been queued. False, request has been completed. 5889 */ 5890 boolean die(boolean immediate) { 5891 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5892 // done by dispatchDetachedFromWindow will cause havoc on return. 5893 if (immediate && !mIsInTraversal) { 5894 doDie(); 5895 return false; 5896 } 5897 5898 if (!mIsDrawing) { 5899 destroyHardwareRenderer(); 5900 } else { 5901 Log.e(mTag, "Attempting to destroy the window while drawing!\n" + 5902 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5903 } 5904 mHandler.sendEmptyMessage(MSG_DIE); 5905 return true; 5906 } 5907 5908 void doDie() { 5909 checkThread(); 5910 if (LOCAL_LOGV) Log.v(mTag, "DIE in " + this + " of " + mSurface); 5911 synchronized (this) { 5912 if (mRemoved) { 5913 return; 5914 } 5915 mRemoved = true; 5916 if (mAdded) { 5917 dispatchDetachedFromWindow(); 5918 } 5919 5920 if (mAdded && !mFirst) { 5921 destroyHardwareRenderer(); 5922 5923 if (mView != null) { 5924 int viewVisibility = mView.getVisibility(); 5925 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5926 if (mWindowAttributesChanged || viewVisibilityChanged) { 5927 // If layout params have been changed, first give them 5928 // to the window manager to make sure it has the correct 5929 // animation info. 5930 try { 5931 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5932 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5933 mWindowSession.finishDrawing(mWindow); 5934 } 5935 } catch (RemoteException e) { 5936 } 5937 } 5938 5939 mSurface.release(); 5940 } 5941 } 5942 5943 mAdded = false; 5944 } 5945 WindowManagerGlobal.getInstance().doRemoveView(this); 5946 } 5947 5948 public void requestUpdateConfiguration(Configuration config) { 5949 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5950 mHandler.sendMessage(msg); 5951 } 5952 5953 public void loadSystemProperties() { 5954 mHandler.post(new Runnable() { 5955 @Override 5956 public void run() { 5957 // Profiling 5958 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5959 profileRendering(mAttachInfo.mHasWindowFocus); 5960 5961 // Hardware rendering 5962 if (mAttachInfo.mHardwareRenderer != null) { 5963 if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) { 5964 invalidate(); 5965 } 5966 } 5967 5968 // Layout debugging 5969 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5970 if (layout != mAttachInfo.mDebugLayout) { 5971 mAttachInfo.mDebugLayout = layout; 5972 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5973 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5974 } 5975 } 5976 } 5977 }); 5978 } 5979 5980 private void destroyHardwareRenderer() { 5981 ThreadedRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 5982 5983 if (hardwareRenderer != null) { 5984 if (mView != null) { 5985 hardwareRenderer.destroyHardwareResources(mView); 5986 } 5987 hardwareRenderer.destroy(); 5988 hardwareRenderer.setRequested(false); 5989 5990 mAttachInfo.mHardwareRenderer = null; 5991 mAttachInfo.mHardwareAccelerated = false; 5992 } 5993 } 5994 5995 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5996 Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw, 5997 Configuration newConfig, Rect backDropFrame, boolean forceLayout, 5998 boolean alwaysConsumeNavBar) { 5999 if (DEBUG_LAYOUT) Log.v(mTag, "Resizing " + this + ": frame=" + frame.toShortString() 6000 + " contentInsets=" + contentInsets.toShortString() 6001 + " visibleInsets=" + visibleInsets.toShortString() 6002 + " reportDraw=" + reportDraw 6003 + " backDropFrame=" + backDropFrame); 6004 6005 // Tell all listeners that we are resizing the window so that the chrome can get 6006 // updated as fast as possible on a separate thread, 6007 if (mDragResizing) { 6008 boolean fullscreen = frame.equals(backDropFrame); 6009 synchronized (mWindowCallbacks) { 6010 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 6011 mWindowCallbacks.get(i).onWindowSizeIsChanging(backDropFrame, fullscreen, 6012 visibleInsets, stableInsets); 6013 } 6014 } 6015 } 6016 6017 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 6018 if (mTranslator != null) { 6019 mTranslator.translateRectInScreenToAppWindow(frame); 6020 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 6021 mTranslator.translateRectInScreenToAppWindow(contentInsets); 6022 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 6023 } 6024 SomeArgs args = SomeArgs.obtain(); 6025 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 6026 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 6027 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 6028 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 6029 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 6030 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 6031 args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets; 6032 args.arg7 = sameProcessCall ? new Rect(outsets) : outsets; 6033 args.arg8 = sameProcessCall ? new Rect(backDropFrame) : backDropFrame; 6034 args.argi1 = forceLayout ? 1 : 0; 6035 args.argi2 = alwaysConsumeNavBar ? 1 : 0; 6036 msg.obj = args; 6037 mHandler.sendMessage(msg); 6038 } 6039 6040 public void dispatchMoved(int newX, int newY) { 6041 if (DEBUG_LAYOUT) Log.v(mTag, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 6042 if (mTranslator != null) { 6043 PointF point = new PointF(newX, newY); 6044 mTranslator.translatePointInScreenToAppWindow(point); 6045 newX = (int) (point.x + 0.5); 6046 newY = (int) (point.y + 0.5); 6047 } 6048 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 6049 mHandler.sendMessage(msg); 6050 } 6051 6052 /** 6053 * Represents a pending input event that is waiting in a queue. 6054 * 6055 * Input events are processed in serial order by the timestamp specified by 6056 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 6057 * one input event to the application at a time and waits for the application 6058 * to finish handling it before delivering the next one. 6059 * 6060 * However, because the application or IME can synthesize and inject multiple 6061 * key events at a time without going through the input dispatcher, we end up 6062 * needing a queue on the application's side. 6063 */ 6064 private static final class QueuedInputEvent { 6065 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 6066 public static final int FLAG_DEFERRED = 1 << 1; 6067 public static final int FLAG_FINISHED = 1 << 2; 6068 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 6069 public static final int FLAG_RESYNTHESIZED = 1 << 4; 6070 public static final int FLAG_UNHANDLED = 1 << 5; 6071 6072 public QueuedInputEvent mNext; 6073 6074 public InputEvent mEvent; 6075 public InputEventReceiver mReceiver; 6076 public int mFlags; 6077 6078 public boolean shouldSkipIme() { 6079 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 6080 return true; 6081 } 6082 return mEvent instanceof MotionEvent 6083 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 6084 } 6085 6086 public boolean shouldSendToSynthesizer() { 6087 if ((mFlags & FLAG_UNHANDLED) != 0) { 6088 return true; 6089 } 6090 6091 return false; 6092 } 6093 6094 @Override 6095 public String toString() { 6096 StringBuilder sb = new StringBuilder("QueuedInputEvent{flags="); 6097 boolean hasPrevious = false; 6098 hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb); 6099 hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb); 6100 hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb); 6101 hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb); 6102 hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb); 6103 hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb); 6104 if (!hasPrevious) { 6105 sb.append("0"); 6106 } 6107 sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false")); 6108 sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false")); 6109 sb.append(", mEvent=" + mEvent + "}"); 6110 return sb.toString(); 6111 } 6112 6113 private boolean flagToString(String name, int flag, 6114 boolean hasPrevious, StringBuilder sb) { 6115 if ((mFlags & flag) != 0) { 6116 if (hasPrevious) { 6117 sb.append("|"); 6118 } 6119 sb.append(name); 6120 return true; 6121 } 6122 return hasPrevious; 6123 } 6124 } 6125 6126 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 6127 InputEventReceiver receiver, int flags) { 6128 QueuedInputEvent q = mQueuedInputEventPool; 6129 if (q != null) { 6130 mQueuedInputEventPoolSize -= 1; 6131 mQueuedInputEventPool = q.mNext; 6132 q.mNext = null; 6133 } else { 6134 q = new QueuedInputEvent(); 6135 } 6136 6137 q.mEvent = event; 6138 q.mReceiver = receiver; 6139 q.mFlags = flags; 6140 return q; 6141 } 6142 6143 private void recycleQueuedInputEvent(QueuedInputEvent q) { 6144 q.mEvent = null; 6145 q.mReceiver = null; 6146 6147 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 6148 mQueuedInputEventPoolSize += 1; 6149 q.mNext = mQueuedInputEventPool; 6150 mQueuedInputEventPool = q; 6151 } 6152 } 6153 6154 void enqueueInputEvent(InputEvent event) { 6155 enqueueInputEvent(event, null, 0, false); 6156 } 6157 6158 void enqueueInputEvent(InputEvent event, 6159 InputEventReceiver receiver, int flags, boolean processImmediately) { 6160 adjustInputEventForCompatibility(event); 6161 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 6162 6163 // Always enqueue the input event in order, regardless of its time stamp. 6164 // We do this because the application or the IME may inject key events 6165 // in response to touch events and we want to ensure that the injected keys 6166 // are processed in the order they were received and we cannot trust that 6167 // the time stamp of injected events are monotonic. 6168 QueuedInputEvent last = mPendingInputEventTail; 6169 if (last == null) { 6170 mPendingInputEventHead = q; 6171 mPendingInputEventTail = q; 6172 } else { 6173 last.mNext = q; 6174 mPendingInputEventTail = q; 6175 } 6176 mPendingInputEventCount += 1; 6177 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 6178 mPendingInputEventCount); 6179 6180 if (processImmediately) { 6181 doProcessInputEvents(); 6182 } else { 6183 scheduleProcessInputEvents(); 6184 } 6185 } 6186 6187 private void scheduleProcessInputEvents() { 6188 if (!mProcessInputEventsScheduled) { 6189 mProcessInputEventsScheduled = true; 6190 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 6191 msg.setAsynchronous(true); 6192 mHandler.sendMessage(msg); 6193 } 6194 } 6195 6196 void doProcessInputEvents() { 6197 // Deliver all pending input events in the queue. 6198 while (mPendingInputEventHead != null) { 6199 QueuedInputEvent q = mPendingInputEventHead; 6200 mPendingInputEventHead = q.mNext; 6201 if (mPendingInputEventHead == null) { 6202 mPendingInputEventTail = null; 6203 } 6204 q.mNext = null; 6205 6206 mPendingInputEventCount -= 1; 6207 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 6208 mPendingInputEventCount); 6209 6210 long eventTime = q.mEvent.getEventTimeNano(); 6211 long oldestEventTime = eventTime; 6212 if (q.mEvent instanceof MotionEvent) { 6213 MotionEvent me = (MotionEvent)q.mEvent; 6214 if (me.getHistorySize() > 0) { 6215 oldestEventTime = me.getHistoricalEventTimeNano(0); 6216 } 6217 } 6218 mChoreographer.mFrameInfo.updateInputEventTime(eventTime, oldestEventTime); 6219 6220 deliverInputEvent(q); 6221 } 6222 6223 // We are done processing all input events that we can process right now 6224 // so we can clear the pending flag immediately. 6225 if (mProcessInputEventsScheduled) { 6226 mProcessInputEventsScheduled = false; 6227 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 6228 } 6229 } 6230 6231 private void deliverInputEvent(QueuedInputEvent q) { 6232 Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 6233 q.mEvent.getSequenceNumber()); 6234 if (mInputEventConsistencyVerifier != null) { 6235 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 6236 } 6237 6238 InputStage stage; 6239 if (q.shouldSendToSynthesizer()) { 6240 stage = mSyntheticInputStage; 6241 } else { 6242 stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 6243 } 6244 6245 if (stage != null) { 6246 stage.deliver(q); 6247 } else { 6248 finishInputEvent(q); 6249 } 6250 } 6251 6252 private void finishInputEvent(QueuedInputEvent q) { 6253 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 6254 q.mEvent.getSequenceNumber()); 6255 6256 if (q.mReceiver != null) { 6257 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 6258 q.mReceiver.finishInputEvent(q.mEvent, handled); 6259 } else { 6260 q.mEvent.recycleIfNeededAfterDispatch(); 6261 } 6262 6263 recycleQueuedInputEvent(q); 6264 } 6265 6266 private void adjustInputEventForCompatibility(InputEvent e) { 6267 if (mTargetSdkVersion < Build.VERSION_CODES.M && e instanceof MotionEvent) { 6268 MotionEvent motion = (MotionEvent) e; 6269 final int mask = 6270 MotionEvent.BUTTON_STYLUS_PRIMARY | MotionEvent.BUTTON_STYLUS_SECONDARY; 6271 final int buttonState = motion.getButtonState(); 6272 final int compatButtonState = (buttonState & mask) >> 4; 6273 if (compatButtonState != 0) { 6274 motion.setButtonState(buttonState | compatButtonState); 6275 } 6276 } 6277 } 6278 6279 static boolean isTerminalInputEvent(InputEvent event) { 6280 if (event instanceof KeyEvent) { 6281 final KeyEvent keyEvent = (KeyEvent)event; 6282 return keyEvent.getAction() == KeyEvent.ACTION_UP; 6283 } else { 6284 final MotionEvent motionEvent = (MotionEvent)event; 6285 final int action = motionEvent.getAction(); 6286 return action == MotionEvent.ACTION_UP 6287 || action == MotionEvent.ACTION_CANCEL 6288 || action == MotionEvent.ACTION_HOVER_EXIT; 6289 } 6290 } 6291 6292 void scheduleConsumeBatchedInput() { 6293 if (!mConsumeBatchedInputScheduled) { 6294 mConsumeBatchedInputScheduled = true; 6295 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 6296 mConsumedBatchedInputRunnable, null); 6297 } 6298 } 6299 6300 void unscheduleConsumeBatchedInput() { 6301 if (mConsumeBatchedInputScheduled) { 6302 mConsumeBatchedInputScheduled = false; 6303 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 6304 mConsumedBatchedInputRunnable, null); 6305 } 6306 } 6307 6308 void scheduleConsumeBatchedInputImmediately() { 6309 if (!mConsumeBatchedInputImmediatelyScheduled) { 6310 unscheduleConsumeBatchedInput(); 6311 mConsumeBatchedInputImmediatelyScheduled = true; 6312 mHandler.post(mConsumeBatchedInputImmediatelyRunnable); 6313 } 6314 } 6315 6316 void doConsumeBatchedInput(long frameTimeNanos) { 6317 if (mConsumeBatchedInputScheduled) { 6318 mConsumeBatchedInputScheduled = false; 6319 if (mInputEventReceiver != null) { 6320 if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos) 6321 && frameTimeNanos != -1) { 6322 // If we consumed a batch here, we want to go ahead and schedule the 6323 // consumption of batched input events on the next frame. Otherwise, we would 6324 // wait until we have more input events pending and might get starved by other 6325 // things occurring in the process. If the frame time is -1, however, then 6326 // we're in a non-batching mode, so there's no need to schedule this. 6327 scheduleConsumeBatchedInput(); 6328 } 6329 } 6330 doProcessInputEvents(); 6331 } 6332 } 6333 6334 final class TraversalRunnable implements Runnable { 6335 @Override 6336 public void run() { 6337 doTraversal(); 6338 } 6339 } 6340 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 6341 6342 final class WindowInputEventReceiver extends InputEventReceiver { 6343 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 6344 super(inputChannel, looper); 6345 } 6346 6347 @Override 6348 public void onInputEvent(InputEvent event) { 6349 enqueueInputEvent(event, this, 0, true); 6350 } 6351 6352 @Override 6353 public void onBatchedInputEventPending() { 6354 if (mUnbufferedInputDispatch) { 6355 super.onBatchedInputEventPending(); 6356 } else { 6357 scheduleConsumeBatchedInput(); 6358 } 6359 } 6360 6361 @Override 6362 public void dispose() { 6363 unscheduleConsumeBatchedInput(); 6364 super.dispose(); 6365 } 6366 } 6367 WindowInputEventReceiver mInputEventReceiver; 6368 6369 final class ConsumeBatchedInputRunnable implements Runnable { 6370 @Override 6371 public void run() { 6372 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 6373 } 6374 } 6375 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 6376 new ConsumeBatchedInputRunnable(); 6377 boolean mConsumeBatchedInputScheduled; 6378 6379 final class ConsumeBatchedInputImmediatelyRunnable implements Runnable { 6380 @Override 6381 public void run() { 6382 doConsumeBatchedInput(-1); 6383 } 6384 } 6385 final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable = 6386 new ConsumeBatchedInputImmediatelyRunnable(); 6387 boolean mConsumeBatchedInputImmediatelyScheduled; 6388 6389 final class InvalidateOnAnimationRunnable implements Runnable { 6390 private boolean mPosted; 6391 private final ArrayList<View> mViews = new ArrayList<View>(); 6392 private final ArrayList<AttachInfo.InvalidateInfo> mViewRects = 6393 new ArrayList<AttachInfo.InvalidateInfo>(); 6394 private View[] mTempViews; 6395 private AttachInfo.InvalidateInfo[] mTempViewRects; 6396 6397 public void addView(View view) { 6398 synchronized (this) { 6399 mViews.add(view); 6400 postIfNeededLocked(); 6401 } 6402 } 6403 6404 public void addViewRect(AttachInfo.InvalidateInfo info) { 6405 synchronized (this) { 6406 mViewRects.add(info); 6407 postIfNeededLocked(); 6408 } 6409 } 6410 6411 public void removeView(View view) { 6412 synchronized (this) { 6413 mViews.remove(view); 6414 6415 for (int i = mViewRects.size(); i-- > 0; ) { 6416 AttachInfo.InvalidateInfo info = mViewRects.get(i); 6417 if (info.target == view) { 6418 mViewRects.remove(i); 6419 info.recycle(); 6420 } 6421 } 6422 6423 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 6424 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 6425 mPosted = false; 6426 } 6427 } 6428 } 6429 6430 @Override 6431 public void run() { 6432 final int viewCount; 6433 final int viewRectCount; 6434 synchronized (this) { 6435 mPosted = false; 6436 6437 viewCount = mViews.size(); 6438 if (viewCount != 0) { 6439 mTempViews = mViews.toArray(mTempViews != null 6440 ? mTempViews : new View[viewCount]); 6441 mViews.clear(); 6442 } 6443 6444 viewRectCount = mViewRects.size(); 6445 if (viewRectCount != 0) { 6446 mTempViewRects = mViewRects.toArray(mTempViewRects != null 6447 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 6448 mViewRects.clear(); 6449 } 6450 } 6451 6452 for (int i = 0; i < viewCount; i++) { 6453 mTempViews[i].invalidate(); 6454 mTempViews[i] = null; 6455 } 6456 6457 for (int i = 0; i < viewRectCount; i++) { 6458 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 6459 info.target.invalidate(info.left, info.top, info.right, info.bottom); 6460 info.recycle(); 6461 } 6462 } 6463 6464 private void postIfNeededLocked() { 6465 if (!mPosted) { 6466 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 6467 mPosted = true; 6468 } 6469 } 6470 } 6471 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 6472 new InvalidateOnAnimationRunnable(); 6473 6474 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 6475 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 6476 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6477 } 6478 6479 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 6480 long delayMilliseconds) { 6481 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 6482 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6483 } 6484 6485 public void dispatchInvalidateOnAnimation(View view) { 6486 mInvalidateOnAnimationRunnable.addView(view); 6487 } 6488 6489 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 6490 mInvalidateOnAnimationRunnable.addViewRect(info); 6491 } 6492 6493 public void cancelInvalidate(View view) { 6494 mHandler.removeMessages(MSG_INVALIDATE, view); 6495 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 6496 // them to the pool 6497 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 6498 mInvalidateOnAnimationRunnable.removeView(view); 6499 } 6500 6501 public void dispatchInputEvent(InputEvent event) { 6502 dispatchInputEvent(event, null); 6503 } 6504 6505 public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) { 6506 SomeArgs args = SomeArgs.obtain(); 6507 args.arg1 = event; 6508 args.arg2 = receiver; 6509 Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args); 6510 msg.setAsynchronous(true); 6511 mHandler.sendMessage(msg); 6512 } 6513 6514 public void synthesizeInputEvent(InputEvent event) { 6515 Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event); 6516 msg.setAsynchronous(true); 6517 mHandler.sendMessage(msg); 6518 } 6519 6520 public void dispatchKeyFromIme(KeyEvent event) { 6521 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 6522 msg.setAsynchronous(true); 6523 mHandler.sendMessage(msg); 6524 } 6525 6526 /** 6527 * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events. 6528 * 6529 * Note that it is the responsibility of the caller of this API to recycle the InputEvent it 6530 * passes in. 6531 */ 6532 public void dispatchUnhandledInputEvent(InputEvent event) { 6533 if (event instanceof MotionEvent) { 6534 event = MotionEvent.obtain((MotionEvent) event); 6535 } 6536 synthesizeInputEvent(event); 6537 } 6538 6539 public void dispatchAppVisibility(boolean visible) { 6540 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 6541 msg.arg1 = visible ? 1 : 0; 6542 mHandler.sendMessage(msg); 6543 } 6544 6545 public void dispatchGetNewSurface() { 6546 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 6547 mHandler.sendMessage(msg); 6548 } 6549 6550 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6551 Message msg = Message.obtain(); 6552 msg.what = MSG_WINDOW_FOCUS_CHANGED; 6553 msg.arg1 = hasFocus ? 1 : 0; 6554 msg.arg2 = inTouchMode ? 1 : 0; 6555 mHandler.sendMessage(msg); 6556 } 6557 6558 public void dispatchWindowShown() { 6559 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN); 6560 } 6561 6562 public void dispatchCloseSystemDialogs(String reason) { 6563 Message msg = Message.obtain(); 6564 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 6565 msg.obj = reason; 6566 mHandler.sendMessage(msg); 6567 } 6568 6569 public void dispatchDragEvent(DragEvent event) { 6570 final int what; 6571 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 6572 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 6573 mHandler.removeMessages(what); 6574 } else { 6575 what = MSG_DISPATCH_DRAG_EVENT; 6576 } 6577 Message msg = mHandler.obtainMessage(what, event); 6578 mHandler.sendMessage(msg); 6579 } 6580 6581 public void updatePointerIcon(float x, float y) { 6582 final int what = MSG_UPDATE_POINTER_ICON; 6583 mHandler.removeMessages(what); 6584 final long now = SystemClock.uptimeMillis(); 6585 final MotionEvent event = MotionEvent.obtain( 6586 0, now, MotionEvent.ACTION_HOVER_MOVE, x, y, 0); 6587 Message msg = mHandler.obtainMessage(what, event); 6588 mHandler.sendMessage(msg); 6589 } 6590 6591 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6592 int localValue, int localChanges) { 6593 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 6594 args.seq = seq; 6595 args.globalVisibility = globalVisibility; 6596 args.localValue = localValue; 6597 args.localChanges = localChanges; 6598 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 6599 } 6600 6601 public void dispatchCheckFocus() { 6602 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 6603 // This will result in a call to checkFocus() below. 6604 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 6605 } 6606 } 6607 6608 public void dispatchRequestKeyboardShortcuts(IResultReceiver receiver, int deviceId) { 6609 mHandler.obtainMessage( 6610 MSG_REQUEST_KEYBOARD_SHORTCUTS, deviceId, 0, receiver).sendToTarget(); 6611 } 6612 6613 /** 6614 * Post a callback to send a 6615 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6616 * This event is send at most once every 6617 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 6618 */ 6619 private void postSendWindowContentChangedCallback(View source, int changeType) { 6620 if (mSendWindowContentChangedAccessibilityEvent == null) { 6621 mSendWindowContentChangedAccessibilityEvent = 6622 new SendWindowContentChangedAccessibilityEvent(); 6623 } 6624 mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType); 6625 } 6626 6627 /** 6628 * Remove a posted callback to send a 6629 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6630 */ 6631 private void removeSendWindowContentChangedCallback() { 6632 if (mSendWindowContentChangedAccessibilityEvent != null) { 6633 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 6634 } 6635 } 6636 6637 @Override 6638 public boolean showContextMenuForChild(View originalView) { 6639 return false; 6640 } 6641 6642 @Override 6643 public boolean showContextMenuForChild(View originalView, float x, float y) { 6644 return false; 6645 } 6646 6647 @Override 6648 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 6649 return null; 6650 } 6651 6652 @Override 6653 public ActionMode startActionModeForChild( 6654 View originalView, ActionMode.Callback callback, int type) { 6655 return null; 6656 } 6657 6658 @Override 6659 public void createContextMenu(ContextMenu menu) { 6660 } 6661 6662 @Override 6663 public void childDrawableStateChanged(View child) { 6664 } 6665 6666 @Override 6667 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 6668 if (mView == null || mStopped || mPausedForTransition) { 6669 return false; 6670 } 6671 // Intercept accessibility focus events fired by virtual nodes to keep 6672 // track of accessibility focus position in such nodes. 6673 final int eventType = event.getEventType(); 6674 switch (eventType) { 6675 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 6676 final long sourceNodeId = event.getSourceNodeId(); 6677 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6678 sourceNodeId); 6679 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6680 if (source != null) { 6681 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6682 if (provider != null) { 6683 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 6684 sourceNodeId); 6685 final AccessibilityNodeInfo node; 6686 if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6687 node = provider.createAccessibilityNodeInfo( 6688 AccessibilityNodeProvider.HOST_VIEW_ID); 6689 } else { 6690 node = provider.createAccessibilityNodeInfo(virtualNodeId); 6691 } 6692 setAccessibilityFocus(source, node); 6693 } 6694 } 6695 } break; 6696 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 6697 final long sourceNodeId = event.getSourceNodeId(); 6698 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6699 sourceNodeId); 6700 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6701 if (source != null) { 6702 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6703 if (provider != null) { 6704 setAccessibilityFocus(null, null); 6705 } 6706 } 6707 } break; 6708 6709 6710 case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: { 6711 handleWindowContentChangedEvent(event); 6712 } break; 6713 } 6714 mAccessibilityManager.sendAccessibilityEvent(event); 6715 return true; 6716 } 6717 6718 /** 6719 * Updates the focused virtual view, when necessary, in response to a 6720 * content changed event. 6721 * <p> 6722 * This is necessary to get updated bounds after a position change. 6723 * 6724 * @param event an accessibility event of type 6725 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} 6726 */ 6727 private void handleWindowContentChangedEvent(AccessibilityEvent event) { 6728 final View focusedHost = mAccessibilityFocusedHost; 6729 if (focusedHost == null || mAccessibilityFocusedVirtualView == null) { 6730 // No virtual view focused, nothing to do here. 6731 return; 6732 } 6733 6734 final AccessibilityNodeProvider provider = focusedHost.getAccessibilityNodeProvider(); 6735 if (provider == null) { 6736 // Error state: virtual view with no provider. Clear focus. 6737 mAccessibilityFocusedHost = null; 6738 mAccessibilityFocusedVirtualView = null; 6739 focusedHost.clearAccessibilityFocusNoCallbacks(0); 6740 return; 6741 } 6742 6743 // We only care about change types that may affect the bounds of the 6744 // focused virtual view. 6745 final int changes = event.getContentChangeTypes(); 6746 if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) == 0 6747 && changes != AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) { 6748 return; 6749 } 6750 6751 final long eventSourceNodeId = event.getSourceNodeId(); 6752 final int changedViewId = AccessibilityNodeInfo.getAccessibilityViewId(eventSourceNodeId); 6753 6754 // Search up the tree for subtree containment. 6755 boolean hostInSubtree = false; 6756 View root = mAccessibilityFocusedHost; 6757 while (root != null && !hostInSubtree) { 6758 if (changedViewId == root.getAccessibilityViewId()) { 6759 hostInSubtree = true; 6760 } else { 6761 final ViewParent parent = root.getParent(); 6762 if (parent instanceof View) { 6763 root = (View) parent; 6764 } else { 6765 root = null; 6766 } 6767 } 6768 } 6769 6770 // We care only about changes in subtrees containing the host view. 6771 if (!hostInSubtree) { 6772 return; 6773 } 6774 6775 final long focusedSourceNodeId = mAccessibilityFocusedVirtualView.getSourceNodeId(); 6776 int focusedChildId = AccessibilityNodeInfo.getVirtualDescendantId(focusedSourceNodeId); 6777 if (focusedChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6778 // TODO: Should we clear the focused virtual view? 6779 focusedChildId = AccessibilityNodeProvider.HOST_VIEW_ID; 6780 } 6781 6782 // Refresh the node for the focused virtual view. 6783 final Rect oldBounds = mTempRect; 6784 mAccessibilityFocusedVirtualView.getBoundsInScreen(oldBounds); 6785 mAccessibilityFocusedVirtualView = provider.createAccessibilityNodeInfo(focusedChildId); 6786 if (mAccessibilityFocusedVirtualView == null) { 6787 // Error state: The node no longer exists. Clear focus. 6788 mAccessibilityFocusedHost = null; 6789 focusedHost.clearAccessibilityFocusNoCallbacks(0); 6790 6791 // This will probably fail, but try to keep the provider's internal 6792 // state consistent by clearing focus. 6793 provider.performAction(focusedChildId, 6794 AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS.getId(), null); 6795 invalidateRectOnScreen(oldBounds); 6796 } else { 6797 // The node was refreshed, invalidate bounds if necessary. 6798 final Rect newBounds = mAccessibilityFocusedVirtualView.getBoundsInScreen(); 6799 if (!oldBounds.equals(newBounds)) { 6800 oldBounds.union(newBounds); 6801 invalidateRectOnScreen(oldBounds); 6802 } 6803 } 6804 } 6805 6806 @Override 6807 public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) { 6808 postSendWindowContentChangedCallback(source, changeType); 6809 } 6810 6811 @Override 6812 public boolean canResolveLayoutDirection() { 6813 return true; 6814 } 6815 6816 @Override 6817 public boolean isLayoutDirectionResolved() { 6818 return true; 6819 } 6820 6821 @Override 6822 public int getLayoutDirection() { 6823 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 6824 } 6825 6826 @Override 6827 public boolean canResolveTextDirection() { 6828 return true; 6829 } 6830 6831 @Override 6832 public boolean isTextDirectionResolved() { 6833 return true; 6834 } 6835 6836 @Override 6837 public int getTextDirection() { 6838 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 6839 } 6840 6841 @Override 6842 public boolean canResolveTextAlignment() { 6843 return true; 6844 } 6845 6846 @Override 6847 public boolean isTextAlignmentResolved() { 6848 return true; 6849 } 6850 6851 @Override 6852 public int getTextAlignment() { 6853 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 6854 } 6855 6856 private View getCommonPredecessor(View first, View second) { 6857 if (mTempHashSet == null) { 6858 mTempHashSet = new HashSet<View>(); 6859 } 6860 HashSet<View> seen = mTempHashSet; 6861 seen.clear(); 6862 View firstCurrent = first; 6863 while (firstCurrent != null) { 6864 seen.add(firstCurrent); 6865 ViewParent firstCurrentParent = firstCurrent.mParent; 6866 if (firstCurrentParent instanceof View) { 6867 firstCurrent = (View) firstCurrentParent; 6868 } else { 6869 firstCurrent = null; 6870 } 6871 } 6872 View secondCurrent = second; 6873 while (secondCurrent != null) { 6874 if (seen.contains(secondCurrent)) { 6875 seen.clear(); 6876 return secondCurrent; 6877 } 6878 ViewParent secondCurrentParent = secondCurrent.mParent; 6879 if (secondCurrentParent instanceof View) { 6880 secondCurrent = (View) secondCurrentParent; 6881 } else { 6882 secondCurrent = null; 6883 } 6884 } 6885 seen.clear(); 6886 return null; 6887 } 6888 6889 void checkThread() { 6890 if (mThread != Thread.currentThread()) { 6891 throw new CalledFromWrongThreadException( 6892 "Only the original thread that created a view hierarchy can touch its views."); 6893 } 6894 } 6895 6896 @Override 6897 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 6898 // ViewAncestor never intercepts touch event, so this can be a no-op 6899 } 6900 6901 @Override 6902 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 6903 if (rectangle == null) { 6904 return scrollToRectOrFocus(null, immediate); 6905 } 6906 rectangle.offset(child.getLeft() - child.getScrollX(), 6907 child.getTop() - child.getScrollY()); 6908 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 6909 mTempRect.set(rectangle); 6910 mTempRect.offset(0, -mCurScrollY); 6911 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 6912 try { 6913 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect); 6914 } catch (RemoteException re) { 6915 /* ignore */ 6916 } 6917 return scrolled; 6918 } 6919 6920 @Override 6921 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 6922 // Do nothing. 6923 } 6924 6925 @Override 6926 public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 6927 return false; 6928 } 6929 6930 @Override 6931 public void onStopNestedScroll(View target) { 6932 } 6933 6934 @Override 6935 public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) { 6936 } 6937 6938 @Override 6939 public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 6940 int dxUnconsumed, int dyUnconsumed) { 6941 } 6942 6943 @Override 6944 public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) { 6945 } 6946 6947 @Override 6948 public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 6949 return false; 6950 } 6951 6952 @Override 6953 public boolean onNestedPreFling(View target, float velocityX, float velocityY) { 6954 return false; 6955 } 6956 6957 @Override 6958 public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) { 6959 return false; 6960 } 6961 6962 /** 6963 * Force the window to report its next draw. 6964 * <p> 6965 * This method is only supposed to be used to speed up the interaction from SystemUI and window 6966 * manager when waiting for the first frame to be drawn when turning on the screen. DO NOT USE 6967 * unless you fully understand this interaction. 6968 * @hide 6969 */ 6970 public void setReportNextDraw() { 6971 mReportNextDraw = true; 6972 invalidate(); 6973 } 6974 6975 void changeCanvasOpacity(boolean opaque) { 6976 Log.d(mTag, "changeCanvasOpacity: opaque=" + opaque); 6977 if (mAttachInfo.mHardwareRenderer != null) { 6978 mAttachInfo.mHardwareRenderer.setOpaque(opaque); 6979 } 6980 } 6981 6982 class TakenSurfaceHolder extends BaseSurfaceHolder { 6983 @Override 6984 public boolean onAllowLockCanvas() { 6985 return mDrawingAllowed; 6986 } 6987 6988 @Override 6989 public void onRelayoutContainer() { 6990 // Not currently interesting -- from changing between fixed and layout size. 6991 } 6992 6993 @Override 6994 public void setFormat(int format) { 6995 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 6996 } 6997 6998 @Override 6999 public void setType(int type) { 7000 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 7001 } 7002 7003 @Override 7004 public void onUpdateSurface() { 7005 // We take care of format and type changes on our own. 7006 throw new IllegalStateException("Shouldn't be here"); 7007 } 7008 7009 @Override 7010 public boolean isCreating() { 7011 return mIsCreating; 7012 } 7013 7014 @Override 7015 public void setFixedSize(int width, int height) { 7016 throw new UnsupportedOperationException( 7017 "Currently only support sizing from layout"); 7018 } 7019 7020 @Override 7021 public void setKeepScreenOn(boolean screenOn) { 7022 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 7023 } 7024 } 7025 7026 static class W extends IWindow.Stub { 7027 private final WeakReference<ViewRootImpl> mViewAncestor; 7028 private final IWindowSession mWindowSession; 7029 7030 W(ViewRootImpl viewAncestor) { 7031 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 7032 mWindowSession = viewAncestor.mWindowSession; 7033 } 7034 7035 @Override 7036 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 7037 Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw, 7038 Configuration newConfig, Rect backDropFrame, boolean forceLayout, 7039 boolean alwaysConsumeNavBar) { 7040 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7041 if (viewAncestor != null) { 7042 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 7043 visibleInsets, stableInsets, outsets, reportDraw, newConfig, backDropFrame, 7044 forceLayout, alwaysConsumeNavBar); 7045 } 7046 } 7047 7048 @Override 7049 public void moved(int newX, int newY) { 7050 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7051 if (viewAncestor != null) { 7052 viewAncestor.dispatchMoved(newX, newY); 7053 } 7054 } 7055 7056 @Override 7057 public void dispatchAppVisibility(boolean visible) { 7058 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7059 if (viewAncestor != null) { 7060 viewAncestor.dispatchAppVisibility(visible); 7061 } 7062 } 7063 7064 @Override 7065 public void dispatchGetNewSurface() { 7066 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7067 if (viewAncestor != null) { 7068 viewAncestor.dispatchGetNewSurface(); 7069 } 7070 } 7071 7072 @Override 7073 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 7074 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7075 if (viewAncestor != null) { 7076 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 7077 } 7078 } 7079 7080 private static int checkCallingPermission(String permission) { 7081 try { 7082 return ActivityManagerNative.getDefault().checkPermission( 7083 permission, Binder.getCallingPid(), Binder.getCallingUid()); 7084 } catch (RemoteException e) { 7085 return PackageManager.PERMISSION_DENIED; 7086 } 7087 } 7088 7089 @Override 7090 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 7091 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7092 if (viewAncestor != null) { 7093 final View view = viewAncestor.mView; 7094 if (view != null) { 7095 if (checkCallingPermission(Manifest.permission.DUMP) != 7096 PackageManager.PERMISSION_GRANTED) { 7097 throw new SecurityException("Insufficient permissions to invoke" 7098 + " executeCommand() from pid=" + Binder.getCallingPid() 7099 + ", uid=" + Binder.getCallingUid()); 7100 } 7101 7102 OutputStream clientStream = null; 7103 try { 7104 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 7105 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 7106 } catch (IOException e) { 7107 e.printStackTrace(); 7108 } finally { 7109 if (clientStream != null) { 7110 try { 7111 clientStream.close(); 7112 } catch (IOException e) { 7113 e.printStackTrace(); 7114 } 7115 } 7116 } 7117 } 7118 } 7119 } 7120 7121 @Override 7122 public void closeSystemDialogs(String reason) { 7123 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7124 if (viewAncestor != null) { 7125 viewAncestor.dispatchCloseSystemDialogs(reason); 7126 } 7127 } 7128 7129 @Override 7130 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 7131 boolean sync) { 7132 if (sync) { 7133 try { 7134 mWindowSession.wallpaperOffsetsComplete(asBinder()); 7135 } catch (RemoteException e) { 7136 } 7137 } 7138 } 7139 7140 @Override 7141 public void dispatchWallpaperCommand(String action, int x, int y, 7142 int z, Bundle extras, boolean sync) { 7143 if (sync) { 7144 try { 7145 mWindowSession.wallpaperCommandComplete(asBinder(), null); 7146 } catch (RemoteException e) { 7147 } 7148 } 7149 } 7150 7151 /* Drag/drop */ 7152 @Override 7153 public void dispatchDragEvent(DragEvent event) { 7154 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7155 if (viewAncestor != null) { 7156 viewAncestor.dispatchDragEvent(event); 7157 } 7158 } 7159 7160 @Override 7161 public void updatePointerIcon(float x, float y) { 7162 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7163 if (viewAncestor != null) { 7164 viewAncestor.updatePointerIcon(x, y); 7165 } 7166 } 7167 7168 @Override 7169 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 7170 int localValue, int localChanges) { 7171 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7172 if (viewAncestor != null) { 7173 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 7174 localValue, localChanges); 7175 } 7176 } 7177 7178 @Override 7179 public void dispatchWindowShown() { 7180 final ViewRootImpl viewAncestor = mViewAncestor.get(); 7181 if (viewAncestor != null) { 7182 viewAncestor.dispatchWindowShown(); 7183 } 7184 } 7185 7186 @Override 7187 public void requestAppKeyboardShortcuts(IResultReceiver receiver, int deviceId) { 7188 ViewRootImpl viewAncestor = mViewAncestor.get(); 7189 if (viewAncestor != null) { 7190 viewAncestor.dispatchRequestKeyboardShortcuts(receiver, deviceId); 7191 } 7192 } 7193 } 7194 7195 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 7196 public CalledFromWrongThreadException(String msg) { 7197 super(msg); 7198 } 7199 } 7200 7201 static HandlerActionQueue getRunQueue() { 7202 HandlerActionQueue rq = sRunQueues.get(); 7203 if (rq != null) { 7204 return rq; 7205 } 7206 rq = new HandlerActionQueue(); 7207 sRunQueues.set(rq); 7208 return rq; 7209 } 7210 7211 /** 7212 * Start a drag resizing which will inform all listeners that a window resize is taking place. 7213 */ 7214 private void startDragResizing(Rect initialBounds, boolean fullscreen, Rect systemInsets, 7215 Rect stableInsets, int resizeMode) { 7216 if (!mDragResizing) { 7217 mDragResizing = true; 7218 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 7219 mWindowCallbacks.get(i).onWindowDragResizeStart(initialBounds, fullscreen, 7220 systemInsets, stableInsets, resizeMode); 7221 } 7222 mFullRedrawNeeded = true; 7223 } 7224 } 7225 7226 /** 7227 * End a drag resize which will inform all listeners that a window resize has ended. 7228 */ 7229 private void endDragResizing() { 7230 if (mDragResizing) { 7231 mDragResizing = false; 7232 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 7233 mWindowCallbacks.get(i).onWindowDragResizeEnd(); 7234 } 7235 mFullRedrawNeeded = true; 7236 } 7237 } 7238 7239 private boolean updateContentDrawBounds() { 7240 boolean updated = false; 7241 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 7242 updated |= mWindowCallbacks.get(i).onContentDrawn( 7243 mWindowAttributes.surfaceInsets.left, 7244 mWindowAttributes.surfaceInsets.top, 7245 mWidth, mHeight); 7246 } 7247 return updated | (mDragResizing && mReportNextDraw); 7248 } 7249 7250 private void requestDrawWindow() { 7251 if (mReportNextDraw) { 7252 mWindowDrawCountDown = new CountDownLatch(mWindowCallbacks.size()); 7253 } 7254 for (int i = mWindowCallbacks.size() - 1; i >= 0; i--) { 7255 mWindowCallbacks.get(i).onRequestDraw(mReportNextDraw); 7256 } 7257 } 7258 7259 /** 7260 * Tells this instance that its corresponding activity has just relaunched. In this case, we 7261 * need to force a relayout of the window to make sure we get the correct bounds from window 7262 * manager. 7263 */ 7264 public void reportActivityRelaunched() { 7265 mActivityRelaunched = true; 7266 } 7267 7268 /** 7269 * Class for managing the accessibility interaction connection 7270 * based on the global accessibility state. 7271 */ 7272 final class AccessibilityInteractionConnectionManager 7273 implements AccessibilityStateChangeListener { 7274 @Override 7275 public void onAccessibilityStateChanged(boolean enabled) { 7276 if (enabled) { 7277 ensureConnection(); 7278 if (mAttachInfo.mHasWindowFocus) { 7279 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 7280 View focusedView = mView.findFocus(); 7281 if (focusedView != null && focusedView != mView) { 7282 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 7283 } 7284 } 7285 } else { 7286 ensureNoConnection(); 7287 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 7288 } 7289 } 7290 7291 public void ensureConnection() { 7292 final boolean registered = 7293 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 7294 if (!registered) { 7295 mAttachInfo.mAccessibilityWindowId = 7296 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 7297 new AccessibilityInteractionConnection(ViewRootImpl.this)); 7298 } 7299 } 7300 7301 public void ensureNoConnection() { 7302 final boolean registered = 7303 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 7304 if (registered) { 7305 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 7306 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 7307 } 7308 } 7309 } 7310 7311 final class HighContrastTextManager implements HighTextContrastChangeListener { 7312 HighContrastTextManager() { 7313 mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled(); 7314 } 7315 @Override 7316 public void onHighTextContrastStateChanged(boolean enabled) { 7317 mAttachInfo.mHighContrastText = enabled; 7318 7319 // Destroy Displaylists so they can be recreated with high contrast recordings 7320 destroyHardwareResources(); 7321 7322 // Schedule redraw, which will rerecord + redraw all text 7323 invalidate(); 7324 } 7325 } 7326 7327 /** 7328 * This class is an interface this ViewAncestor provides to the 7329 * AccessibilityManagerService to the latter can interact with 7330 * the view hierarchy in this ViewAncestor. 7331 */ 7332 static final class AccessibilityInteractionConnection 7333 extends IAccessibilityInteractionConnection.Stub { 7334 private final WeakReference<ViewRootImpl> mViewRootImpl; 7335 7336 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 7337 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 7338 } 7339 7340 @Override 7341 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 7342 Region interactiveRegion, int interactionId, 7343 IAccessibilityInteractionConnectionCallback callback, int flags, 7344 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7345 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7346 if (viewRootImpl != null && viewRootImpl.mView != null) { 7347 viewRootImpl.getAccessibilityInteractionController() 7348 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 7349 interactiveRegion, interactionId, callback, flags, interrogatingPid, 7350 interrogatingTid, spec); 7351 } else { 7352 // We cannot make the call and notify the caller so it does not wait. 7353 try { 7354 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 7355 } catch (RemoteException re) { 7356 /* best effort - ignore */ 7357 } 7358 } 7359 } 7360 7361 @Override 7362 public void performAccessibilityAction(long accessibilityNodeId, int action, 7363 Bundle arguments, int interactionId, 7364 IAccessibilityInteractionConnectionCallback callback, int flags, 7365 int interrogatingPid, long interrogatingTid) { 7366 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7367 if (viewRootImpl != null && viewRootImpl.mView != null) { 7368 viewRootImpl.getAccessibilityInteractionController() 7369 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 7370 interactionId, callback, flags, interrogatingPid, interrogatingTid); 7371 } else { 7372 // We cannot make the call and notify the caller so it does not wait. 7373 try { 7374 callback.setPerformAccessibilityActionResult(false, interactionId); 7375 } catch (RemoteException re) { 7376 /* best effort - ignore */ 7377 } 7378 } 7379 } 7380 7381 @Override 7382 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 7383 String viewId, Region interactiveRegion, int interactionId, 7384 IAccessibilityInteractionConnectionCallback callback, int flags, 7385 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7386 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7387 if (viewRootImpl != null && viewRootImpl.mView != null) { 7388 viewRootImpl.getAccessibilityInteractionController() 7389 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 7390 viewId, interactiveRegion, interactionId, callback, flags, 7391 interrogatingPid, interrogatingTid, spec); 7392 } else { 7393 // We cannot make the call and notify the caller so it does not wait. 7394 try { 7395 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7396 } catch (RemoteException re) { 7397 /* best effort - ignore */ 7398 } 7399 } 7400 } 7401 7402 @Override 7403 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 7404 Region interactiveRegion, int interactionId, 7405 IAccessibilityInteractionConnectionCallback callback, int flags, 7406 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7407 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7408 if (viewRootImpl != null && viewRootImpl.mView != null) { 7409 viewRootImpl.getAccessibilityInteractionController() 7410 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 7411 interactiveRegion, interactionId, callback, flags, interrogatingPid, 7412 interrogatingTid, spec); 7413 } else { 7414 // We cannot make the call and notify the caller so it does not wait. 7415 try { 7416 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 7417 } catch (RemoteException re) { 7418 /* best effort - ignore */ 7419 } 7420 } 7421 } 7422 7423 @Override 7424 public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion, 7425 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 7426 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7427 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7428 if (viewRootImpl != null && viewRootImpl.mView != null) { 7429 viewRootImpl.getAccessibilityInteractionController() 7430 .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion, 7431 interactionId, callback, flags, interrogatingPid, interrogatingTid, 7432 spec); 7433 } else { 7434 // We cannot make the call and notify the caller so it does not wait. 7435 try { 7436 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7437 } catch (RemoteException re) { 7438 /* best effort - ignore */ 7439 } 7440 } 7441 } 7442 7443 @Override 7444 public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion, 7445 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 7446 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 7447 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 7448 if (viewRootImpl != null && viewRootImpl.mView != null) { 7449 viewRootImpl.getAccessibilityInteractionController() 7450 .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion, 7451 interactionId, callback, flags, interrogatingPid, interrogatingTid, 7452 spec); 7453 } else { 7454 // We cannot make the call and notify the caller so it does not wait. 7455 try { 7456 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7457 } catch (RemoteException re) { 7458 /* best effort - ignore */ 7459 } 7460 } 7461 } 7462 } 7463 7464 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 7465 private int mChangeTypes = 0; 7466 7467 public View mSource; 7468 public long mLastEventTimeMillis; 7469 7470 @Override 7471 public void run() { 7472 // The accessibility may be turned off while we were waiting so check again. 7473 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 7474 mLastEventTimeMillis = SystemClock.uptimeMillis(); 7475 AccessibilityEvent event = AccessibilityEvent.obtain(); 7476 event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 7477 event.setContentChangeTypes(mChangeTypes); 7478 mSource.sendAccessibilityEventUnchecked(event); 7479 } else { 7480 mLastEventTimeMillis = 0; 7481 } 7482 // In any case reset to initial state. 7483 mSource.resetSubtreeAccessibilityStateChanged(); 7484 mSource = null; 7485 mChangeTypes = 0; 7486 } 7487 7488 public void runOrPost(View source, int changeType) { 7489 if (mSource != null) { 7490 // If there is no common predecessor, then mSource points to 7491 // a removed view, hence in this case always prefer the source. 7492 View predecessor = getCommonPredecessor(mSource, source); 7493 mSource = (predecessor != null) ? predecessor : source; 7494 mChangeTypes |= changeType; 7495 return; 7496 } 7497 mSource = source; 7498 mChangeTypes = changeType; 7499 final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis; 7500 final long minEventIntevalMillis = 7501 ViewConfiguration.getSendRecurringAccessibilityEventsInterval(); 7502 if (timeSinceLastMillis >= minEventIntevalMillis) { 7503 mSource.removeCallbacks(this); 7504 run(); 7505 } else { 7506 mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis); 7507 } 7508 } 7509 } 7510 } 7511
