ViewRootImpl.java revision d261e8360370f72e2272dcd0a6bd2c86460439a8
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.Context; 25import android.content.pm.PackageManager; 26import android.content.res.CompatibilityInfo; 27import android.content.res.Configuration; 28import android.content.res.Resources; 29import android.graphics.Canvas; 30import android.graphics.Matrix; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.graphics.drawable.Drawable; 39import android.hardware.display.DisplayManager; 40import android.hardware.display.DisplayManager.DisplayListener; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Build; 44import android.os.Bundle; 45import android.os.Debug; 46import android.os.Handler; 47import android.os.Looper; 48import android.os.Message; 49import android.os.ParcelFileDescriptor; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TimeUtils; 60import android.util.TypedValue; 61import android.view.Surface.OutOfResourcesException; 62import android.view.View.AttachInfo; 63import android.view.View.MeasureSpec; 64import android.view.accessibility.AccessibilityEvent; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener; 68import android.view.accessibility.AccessibilityNodeInfo; 69import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction; 70import android.view.accessibility.AccessibilityNodeProvider; 71import android.view.accessibility.IAccessibilityInteractionConnection; 72import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 73import android.view.animation.AccelerateDecelerateInterpolator; 74import android.view.animation.Interpolator; 75import android.view.inputmethod.InputConnection; 76import android.view.inputmethod.InputMethodManager; 77import android.widget.Scroller; 78 79import com.android.internal.R; 80import com.android.internal.os.SomeArgs; 81import com.android.internal.policy.PhoneFallbackEventHandler; 82import com.android.internal.util.ScreenShapeHelper; 83import com.android.internal.view.BaseSurfaceHolder; 84import com.android.internal.view.RootViewSurfaceTaker; 85 86import java.io.FileDescriptor; 87import java.io.IOException; 88import java.io.OutputStream; 89import java.io.PrintWriter; 90import java.lang.ref.WeakReference; 91import java.util.ArrayList; 92import java.util.HashSet; 93 94/** 95 * The top of a view hierarchy, implementing the needed protocol between View 96 * and the WindowManager. This is for the most part an internal implementation 97 * detail of {@link WindowManagerGlobal}. 98 * 99 * {@hide} 100 */ 101@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 102public final class ViewRootImpl implements ViewParent, 103 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 104 private static final String TAG = "ViewRootImpl"; 105 private static final boolean DBG = false; 106 private static final boolean LOCAL_LOGV = false; 107 /** @noinspection PointlessBooleanExpression*/ 108 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 109 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 110 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 111 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 112 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 113 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 114 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 115 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 116 private static final boolean DEBUG_FPS = false; 117 private static final boolean DEBUG_INPUT_STAGES = false || LOCAL_LOGV; 118 119 /** 120 * Set this system property to true to force the view hierarchy to render 121 * at 60 Hz. This can be used to measure the potential framerate. 122 */ 123 private static final String PROPERTY_PROFILE_RENDERING = "viewroot.profile_rendering"; 124 125 // properties used by emulator to determine display shape 126 public static final String PROPERTY_EMULATOR_WIN_OUTSET_BOTTOM_PX = 127 "ro.emu.win_outset_bottom_px"; 128 129 /** 130 * Maximum time we allow the user to roll the trackball enough to generate 131 * a key event, before resetting the counters. 132 */ 133 static final int MAX_TRACKBALL_DELAY = 250; 134 135 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 136 137 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 138 static boolean sFirstDrawComplete = false; 139 140 static final ArrayList<ComponentCallbacks> sConfigCallbacks 141 = new ArrayList<ComponentCallbacks>(); 142 143 final Context mContext; 144 final IWindowSession mWindowSession; 145 final Display mDisplay; 146 final DisplayManager mDisplayManager; 147 final String mBasePackageName; 148 149 final int[] mTmpLocation = new int[2]; 150 151 final TypedValue mTmpValue = new TypedValue(); 152 153 final Thread mThread; 154 155 final WindowLeaked mLocation; 156 157 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 158 159 final W mWindow; 160 161 final int mTargetSdkVersion; 162 163 int mSeq; 164 165 View mView; 166 167 View mAccessibilityFocusedHost; 168 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 169 170 int mViewVisibility; 171 boolean mAppVisible = true; 172 int mOrigWindowType = -1; 173 174 // Set to true if the owner of this window is in the stopped state, 175 // so the window should no longer be active. 176 boolean mStopped = false; 177 178 // Set to true to stop input during an Activity Transition. 179 boolean mPausedForTransition = false; 180 181 boolean mLastInCompatMode = false; 182 183 SurfaceHolder.Callback2 mSurfaceHolderCallback; 184 BaseSurfaceHolder mSurfaceHolder; 185 boolean mIsCreating; 186 boolean mDrawingAllowed; 187 188 final Region mTransparentRegion; 189 final Region mPreviousTransparentRegion; 190 191 int mWidth; 192 int mHeight; 193 Rect mDirty; 194 boolean mIsAnimating; 195 196 CompatibilityInfo.Translator mTranslator; 197 198 final View.AttachInfo mAttachInfo; 199 InputChannel mInputChannel; 200 InputQueue.Callback mInputQueueCallback; 201 InputQueue mInputQueue; 202 FallbackEventHandler mFallbackEventHandler; 203 Choreographer mChoreographer; 204 205 final Rect mTempRect; // used in the transaction to not thrash the heap. 206 final Rect mVisRect; // used to retrieve visible rect of focused view. 207 208 boolean mTraversalScheduled; 209 int mTraversalBarrier; 210 boolean mWillDrawSoon; 211 /** Set to true while in performTraversals for detecting when die(true) is called from internal 212 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 213 boolean mIsInTraversal; 214 boolean mApplyInsetsRequested; 215 boolean mLayoutRequested; 216 boolean mFirst; 217 boolean mReportNextDraw; 218 boolean mFullRedrawNeeded; 219 boolean mNewSurfaceNeeded; 220 boolean mHasHadWindowFocus; 221 boolean mLastWasImTarget; 222 boolean mWindowsAnimating; 223 boolean mDrawDuringWindowsAnimating; 224 225 /** How many frames the app is still allowed to draw when a window animation is happening. */ 226 private int mRemainingFrameCount; 227 boolean mIsDrawing; 228 int mLastSystemUiVisibility; 229 int mClientWindowLayoutFlags; 230 boolean mLastOverscanRequested; 231 232 // Pool of queued input events. 233 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 234 private QueuedInputEvent mQueuedInputEventPool; 235 private int mQueuedInputEventPoolSize; 236 237 /* Input event queue. 238 * Pending input events are input events waiting to be delivered to the input stages 239 * and handled by the application. 240 */ 241 QueuedInputEvent mPendingInputEventHead; 242 QueuedInputEvent mPendingInputEventTail; 243 int mPendingInputEventCount; 244 boolean mProcessInputEventsScheduled; 245 boolean mUnbufferedInputDispatch; 246 String mPendingInputEventQueueLengthCounterName = "pq"; 247 248 InputStage mFirstInputStage; 249 InputStage mFirstPostImeInputStage; 250 InputStage mSyntheticInputStage; 251 252 boolean mWindowAttributesChanged = false; 253 int mWindowAttributesChangesFlag = 0; 254 255 // These can be accessed by any thread, must be protected with a lock. 256 // Surface can never be reassigned or cleared (use Surface.clear()). 257 final Surface mSurface = new Surface(); 258 259 boolean mAdded; 260 boolean mAddedTouchMode; 261 262 final DisplayAdjustments mDisplayAdjustments; 263 264 // These are accessed by multiple threads. 265 final Rect mWinFrame; // frame given by window manager. 266 267 final Rect mPendingOverscanInsets = new Rect(); 268 final Rect mPendingVisibleInsets = new Rect(); 269 final Rect mPendingStableInsets = new Rect(); 270 final Rect mPendingContentInsets = new Rect(); 271 final Rect mPendingOutsets = new Rect(); 272 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 273 = new ViewTreeObserver.InternalInsetsInfo(); 274 275 final Rect mDispatchContentInsets = new Rect(); 276 final Rect mDispatchStableInsets = new Rect(); 277 278 private WindowInsets mLastWindowInsets; 279 280 final Configuration mLastConfiguration = new Configuration(); 281 final Configuration mPendingConfiguration = new Configuration(); 282 283 boolean mScrollMayChange; 284 int mSoftInputMode; 285 WeakReference<View> mLastScrolledFocus; 286 int mScrollY; 287 int mCurScrollY; 288 Scroller mScroller; 289 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 290 private ArrayList<LayoutTransition> mPendingTransitions; 291 292 final ViewConfiguration mViewConfiguration; 293 294 /* Drag/drop */ 295 ClipDescription mDragDescription; 296 View mCurrentDragView; 297 volatile Object mLocalDragState; 298 final PointF mDragPoint = new PointF(); 299 final PointF mLastTouchPoint = new PointF(); 300 301 private boolean mProfileRendering; 302 private Choreographer.FrameCallback mRenderProfiler; 303 private boolean mRenderProfilingEnabled; 304 305 // Variables to track frames per second, enabled via DEBUG_FPS flag 306 private long mFpsStartTime = -1; 307 private long mFpsPrevTime = -1; 308 private int mFpsNumFrames; 309 310 /** 311 * see {@link #playSoundEffect(int)} 312 */ 313 AudioManager mAudioManager; 314 315 final AccessibilityManager mAccessibilityManager; 316 317 AccessibilityInteractionController mAccessibilityInteractionController; 318 319 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 320 HighContrastTextManager mHighContrastTextManager; 321 322 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 323 324 HashSet<View> mTempHashSet; 325 326 private final int mDensity; 327 private final int mNoncompatDensity; 328 329 private boolean mInLayout = false; 330 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 331 boolean mHandlingLayoutInLayoutRequest = false; 332 333 private int mViewLayoutDirectionInitial; 334 335 /** Set to true once doDie() has been called. */ 336 private boolean mRemoved; 337 338 /** 339 * Consistency verifier for debugging purposes. 340 */ 341 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 342 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 343 new InputEventConsistencyVerifier(this, 0) : null; 344 345 static final class SystemUiVisibilityInfo { 346 int seq; 347 int globalVisibility; 348 int localValue; 349 int localChanges; 350 } 351 352 public ViewRootImpl(Context context, Display display) { 353 mContext = context; 354 mWindowSession = WindowManagerGlobal.getWindowSession(); 355 mDisplay = display; 356 mBasePackageName = context.getBasePackageName(); 357 358 mDisplayAdjustments = display.getDisplayAdjustments(); 359 360 mThread = Thread.currentThread(); 361 mLocation = new WindowLeaked(null); 362 mLocation.fillInStackTrace(); 363 mWidth = -1; 364 mHeight = -1; 365 mDirty = new Rect(); 366 mTempRect = new Rect(); 367 mVisRect = new Rect(); 368 mWinFrame = new Rect(); 369 mWindow = new W(this); 370 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 371 mViewVisibility = View.GONE; 372 mTransparentRegion = new Region(); 373 mPreviousTransparentRegion = new Region(); 374 mFirst = true; // true for the first time the view is added 375 mAdded = false; 376 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 377 mAccessibilityManager = AccessibilityManager.getInstance(context); 378 mAccessibilityInteractionConnectionManager = 379 new AccessibilityInteractionConnectionManager(); 380 mAccessibilityManager.addAccessibilityStateChangeListener( 381 mAccessibilityInteractionConnectionManager); 382 mHighContrastTextManager = new HighContrastTextManager(); 383 mAccessibilityManager.addHighTextContrastStateChangeListener( 384 mHighContrastTextManager); 385 mViewConfiguration = ViewConfiguration.get(context); 386 mDensity = context.getResources().getDisplayMetrics().densityDpi; 387 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 388 mFallbackEventHandler = new PhoneFallbackEventHandler(context); 389 mChoreographer = Choreographer.getInstance(); 390 mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE); 391 loadSystemProperties(); 392 } 393 394 public static void addFirstDrawHandler(Runnable callback) { 395 synchronized (sFirstDrawHandlers) { 396 if (!sFirstDrawComplete) { 397 sFirstDrawHandlers.add(callback); 398 } 399 } 400 } 401 402 public static void addConfigCallback(ComponentCallbacks callback) { 403 synchronized (sConfigCallbacks) { 404 sConfigCallbacks.add(callback); 405 } 406 } 407 408 // FIXME for perf testing only 409 private boolean mProfile = false; 410 411 /** 412 * Call this to profile the next traversal call. 413 * FIXME for perf testing only. Remove eventually 414 */ 415 public void profile() { 416 mProfile = true; 417 } 418 419 /** 420 * Indicates whether we are in touch mode. Calling this method triggers an IPC 421 * call and should be avoided whenever possible. 422 * 423 * @return True, if the device is in touch mode, false otherwise. 424 * 425 * @hide 426 */ 427 static boolean isInTouchMode() { 428 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 429 if (windowSession != null) { 430 try { 431 return windowSession.getInTouchMode(); 432 } catch (RemoteException e) { 433 } 434 } 435 return false; 436 } 437 438 /** 439 * We have one child 440 */ 441 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 442 synchronized (this) { 443 if (mView == null) { 444 mView = view; 445 446 mAttachInfo.mDisplayState = mDisplay.getState(); 447 mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); 448 449 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 450 mFallbackEventHandler.setView(view); 451 mWindowAttributes.copyFrom(attrs); 452 if (mWindowAttributes.packageName == null) { 453 mWindowAttributes.packageName = mBasePackageName; 454 } 455 attrs = mWindowAttributes; 456 // Keep track of the actual window flags supplied by the client. 457 mClientWindowLayoutFlags = attrs.flags; 458 459 setAccessibilityFocus(null, null); 460 461 if (view instanceof RootViewSurfaceTaker) { 462 mSurfaceHolderCallback = 463 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 464 if (mSurfaceHolderCallback != null) { 465 mSurfaceHolder = new TakenSurfaceHolder(); 466 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 467 } 468 } 469 470 // Compute surface insets required to draw at specified Z value. 471 // TODO: Use real shadow insets for a constant max Z. 472 if (!attrs.hasManualSurfaceInsets) { 473 final int surfaceInset = (int) Math.ceil(view.getZ() * 2); 474 attrs.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset); 475 } 476 477 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 478 mTranslator = compatibilityInfo.getTranslator(); 479 480 // If the application owns the surface, don't enable hardware acceleration 481 if (mSurfaceHolder == null) { 482 enableHardwareAcceleration(attrs); 483 } 484 485 boolean restore = false; 486 if (mTranslator != null) { 487 mSurface.setCompatibilityTranslator(mTranslator); 488 restore = true; 489 attrs.backup(); 490 mTranslator.translateWindowLayout(attrs); 491 } 492 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 493 494 if (!compatibilityInfo.supportsScreen()) { 495 attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 496 mLastInCompatMode = true; 497 } 498 499 mSoftInputMode = attrs.softInputMode; 500 mWindowAttributesChanged = true; 501 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 502 mAttachInfo.mRootView = view; 503 mAttachInfo.mScalingRequired = mTranslator != null; 504 mAttachInfo.mApplicationScale = 505 mTranslator == null ? 1.0f : mTranslator.applicationScale; 506 if (panelParentView != null) { 507 mAttachInfo.mPanelParentWindowToken 508 = panelParentView.getApplicationWindowToken(); 509 } 510 mAdded = true; 511 int res; /* = WindowManagerImpl.ADD_OKAY; */ 512 513 // Schedule the first layout -before- adding to the window 514 // manager, to make sure we do the relayout before receiving 515 // any other events from the system. 516 requestLayout(); 517 if ((mWindowAttributes.inputFeatures 518 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 519 mInputChannel = new InputChannel(); 520 } 521 try { 522 mOrigWindowType = mWindowAttributes.type; 523 mAttachInfo.mRecomputeGlobalAttributes = true; 524 collectViewAttributes(); 525 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 526 getHostVisibility(), mDisplay.getDisplayId(), 527 mAttachInfo.mContentInsets, mAttachInfo.mStableInsets, 528 mAttachInfo.mOutsets, mInputChannel); 529 } catch (RemoteException e) { 530 mAdded = false; 531 mView = null; 532 mAttachInfo.mRootView = null; 533 mInputChannel = null; 534 mFallbackEventHandler.setView(null); 535 unscheduleTraversals(); 536 setAccessibilityFocus(null, null); 537 throw new RuntimeException("Adding window failed", e); 538 } finally { 539 if (restore) { 540 attrs.restore(); 541 } 542 } 543 544 if (mTranslator != null) { 545 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 546 } 547 mPendingOverscanInsets.set(0, 0, 0, 0); 548 mPendingContentInsets.set(mAttachInfo.mContentInsets); 549 mPendingStableInsets.set(mAttachInfo.mStableInsets); 550 mPendingVisibleInsets.set(0, 0, 0, 0); 551 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 552 if (res < WindowManagerGlobal.ADD_OKAY) { 553 mAttachInfo.mRootView = null; 554 mAdded = false; 555 mFallbackEventHandler.setView(null); 556 unscheduleTraversals(); 557 setAccessibilityFocus(null, null); 558 switch (res) { 559 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 560 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 561 throw new WindowManager.BadTokenException( 562 "Unable to add window -- token " + attrs.token 563 + " is not valid; is your activity running?"); 564 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 565 throw new WindowManager.BadTokenException( 566 "Unable to add window -- token " + attrs.token 567 + " is not for an application"); 568 case WindowManagerGlobal.ADD_APP_EXITING: 569 throw new WindowManager.BadTokenException( 570 "Unable to add window -- app for token " + attrs.token 571 + " is exiting"); 572 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 573 throw new WindowManager.BadTokenException( 574 "Unable to add window -- window " + mWindow 575 + " has already been added"); 576 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 577 // Silently ignore -- we would have just removed it 578 // right away, anyway. 579 return; 580 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 581 throw new WindowManager.BadTokenException( 582 "Unable to add window " + mWindow + 583 " -- another window of this type already exists"); 584 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 585 throw new WindowManager.BadTokenException( 586 "Unable to add window " + mWindow + 587 " -- permission denied for this window type"); 588 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 589 throw new WindowManager.InvalidDisplayException( 590 "Unable to add window " + mWindow + 591 " -- the specified display can not be found"); 592 case WindowManagerGlobal.ADD_INVALID_TYPE: 593 throw new WindowManager.InvalidDisplayException( 594 "Unable to add window " + mWindow 595 + " -- the specified window type is not valid"); 596 } 597 throw new RuntimeException( 598 "Unable to add window -- unknown error code " + res); 599 } 600 601 if (view instanceof RootViewSurfaceTaker) { 602 mInputQueueCallback = 603 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 604 } 605 if (mInputChannel != null) { 606 if (mInputQueueCallback != null) { 607 mInputQueue = new InputQueue(); 608 mInputQueueCallback.onInputQueueCreated(mInputQueue); 609 } 610 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 611 Looper.myLooper()); 612 } 613 614 view.assignParent(this); 615 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 616 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 617 618 if (mAccessibilityManager.isEnabled()) { 619 mAccessibilityInteractionConnectionManager.ensureConnection(); 620 } 621 622 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 623 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 624 } 625 626 // Set up the input pipeline. 627 CharSequence counterSuffix = attrs.getTitle(); 628 mSyntheticInputStage = new SyntheticInputStage(); 629 InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage); 630 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 631 "aq:native-post-ime:" + counterSuffix); 632 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 633 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 634 "aq:ime:" + counterSuffix); 635 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 636 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 637 "aq:native-pre-ime:" + counterSuffix); 638 639 mFirstInputStage = nativePreImeStage; 640 mFirstPostImeInputStage = earlyPostImeStage; 641 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 642 } 643 } 644 } 645 646 /** Whether the window is in local focus mode or not */ 647 private boolean isInLocalFocusMode() { 648 return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0; 649 } 650 651 public int getWindowFlags() { 652 return mWindowAttributes.flags; 653 } 654 655 public int getDisplayId() { 656 return mDisplay.getDisplayId(); 657 } 658 659 public CharSequence getTitle() { 660 return mWindowAttributes.getTitle(); 661 } 662 663 void destroyHardwareResources() { 664 if (mAttachInfo.mHardwareRenderer != null) { 665 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 666 mAttachInfo.mHardwareRenderer.destroy(); 667 } 668 } 669 670 public void detachFunctor(long functor) { 671 if (mAttachInfo.mHardwareRenderer != null) { 672 // Fence so that any pending invokeFunctor() messages will be processed 673 // before we return from detachFunctor. 674 mAttachInfo.mHardwareRenderer.stopDrawing(); 675 } 676 } 677 678 /** 679 * Schedules the functor for execution in either kModeProcess or 680 * kModeProcessNoContext, depending on whether or not there is an EGLContext. 681 * 682 * @param functor The native functor to invoke 683 * @param waitForCompletion If true, this will not return until the functor 684 * has invoked. If false, the functor may be invoked 685 * asynchronously. 686 */ 687 public void invokeFunctor(long functor, boolean waitForCompletion) { 688 ThreadedRenderer.invokeFunctor(functor, waitForCompletion); 689 } 690 691 public void registerAnimatingRenderNode(RenderNode animator) { 692 if (mAttachInfo.mHardwareRenderer != null) { 693 mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator); 694 } else { 695 if (mAttachInfo.mPendingAnimatingRenderNodes == null) { 696 mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>(); 697 } 698 mAttachInfo.mPendingAnimatingRenderNodes.add(animator); 699 } 700 } 701 702 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 703 mAttachInfo.mHardwareAccelerated = false; 704 mAttachInfo.mHardwareAccelerationRequested = false; 705 706 // Don't enable hardware acceleration when the application is in compatibility mode 707 if (mTranslator != null) return; 708 709 // Try to enable hardware acceleration if requested 710 final boolean hardwareAccelerated = 711 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 712 713 if (hardwareAccelerated) { 714 if (!HardwareRenderer.isAvailable()) { 715 return; 716 } 717 718 // Persistent processes (including the system) should not do 719 // accelerated rendering on low-end devices. In that case, 720 // sRendererDisabled will be set. In addition, the system process 721 // itself should never do accelerated rendering. In that case, both 722 // sRendererDisabled and sSystemRendererDisabled are set. When 723 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 724 // can be used by code on the system process to escape that and enable 725 // HW accelerated drawing. (This is basically for the lock screen.) 726 727 final boolean fakeHwAccelerated = (attrs.privateFlags & 728 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 729 final boolean forceHwAccelerated = (attrs.privateFlags & 730 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 731 732 if (fakeHwAccelerated) { 733 // This is exclusively for the preview windows the window manager 734 // shows for launching applications, so they will look more like 735 // the app being launched. 736 mAttachInfo.mHardwareAccelerationRequested = true; 737 } else if (!HardwareRenderer.sRendererDisabled 738 || (HardwareRenderer.sSystemRendererDisabled && forceHwAccelerated)) { 739 if (mAttachInfo.mHardwareRenderer != null) { 740 mAttachInfo.mHardwareRenderer.destroy(); 741 } 742 743 final Rect insets = attrs.surfaceInsets; 744 final boolean hasSurfaceInsets = insets.left != 0 || insets.right != 0 745 || insets.top != 0 || insets.bottom != 0; 746 final boolean translucent = attrs.format != PixelFormat.OPAQUE || hasSurfaceInsets; 747 mAttachInfo.mHardwareRenderer = HardwareRenderer.create(mContext, translucent); 748 if (mAttachInfo.mHardwareRenderer != null) { 749 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 750 mAttachInfo.mHardwareAccelerated = 751 mAttachInfo.mHardwareAccelerationRequested = true; 752 } 753 } 754 } 755 } 756 757 public View getView() { 758 return mView; 759 } 760 761 final WindowLeaked getLocation() { 762 return mLocation; 763 } 764 765 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 766 synchronized (this) { 767 final int oldInsetLeft = mWindowAttributes.surfaceInsets.left; 768 final int oldInsetTop = mWindowAttributes.surfaceInsets.top; 769 final int oldInsetRight = mWindowAttributes.surfaceInsets.right; 770 final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom; 771 final int oldSoftInputMode = mWindowAttributes.softInputMode; 772 final boolean oldHasManualSurfaceInsets = mWindowAttributes.hasManualSurfaceInsets; 773 774 // Keep track of the actual window flags supplied by the client. 775 mClientWindowLayoutFlags = attrs.flags; 776 777 // Preserve compatible window flag if exists. 778 final int compatibleWindowFlag = mWindowAttributes.privateFlags 779 & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 780 781 // Transfer over system UI visibility values as they carry current state. 782 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 783 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 784 785 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 786 if ((mWindowAttributesChangesFlag 787 & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) { 788 // Recompute system ui visibility. 789 mAttachInfo.mRecomputeGlobalAttributes = true; 790 } 791 if (mWindowAttributes.packageName == null) { 792 mWindowAttributes.packageName = mBasePackageName; 793 } 794 mWindowAttributes.privateFlags |= compatibleWindowFlag; 795 796 // Restore old surface insets. 797 mWindowAttributes.surfaceInsets.set( 798 oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom); 799 mWindowAttributes.hasManualSurfaceInsets = oldHasManualSurfaceInsets; 800 801 applyKeepScreenOnFlag(mWindowAttributes); 802 803 if (newView) { 804 mSoftInputMode = attrs.softInputMode; 805 requestLayout(); 806 } 807 808 // Don't lose the mode we last auto-computed. 809 if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 810 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 811 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 812 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 813 | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 814 } 815 816 mWindowAttributesChanged = true; 817 scheduleTraversals(); 818 } 819 } 820 821 void handleAppVisibility(boolean visible) { 822 if (mAppVisible != visible) { 823 mAppVisible = visible; 824 scheduleTraversals(); 825 if (!mAppVisible) { 826 WindowManagerGlobal.trimForeground(); 827 } 828 } 829 } 830 831 void handleGetNewSurface() { 832 mNewSurfaceNeeded = true; 833 mFullRedrawNeeded = true; 834 scheduleTraversals(); 835 } 836 837 private final DisplayListener mDisplayListener = new DisplayListener() { 838 @Override 839 public void onDisplayChanged(int displayId) { 840 if (mView != null && mDisplay.getDisplayId() == displayId) { 841 final int oldDisplayState = mAttachInfo.mDisplayState; 842 final int newDisplayState = mDisplay.getState(); 843 if (oldDisplayState != newDisplayState) { 844 mAttachInfo.mDisplayState = newDisplayState; 845 pokeDrawLockIfNeeded(); 846 if (oldDisplayState != Display.STATE_UNKNOWN) { 847 final int oldScreenState = toViewScreenState(oldDisplayState); 848 final int newScreenState = toViewScreenState(newDisplayState); 849 if (oldScreenState != newScreenState) { 850 mView.dispatchScreenStateChanged(newScreenState); 851 } 852 if (oldDisplayState == Display.STATE_OFF) { 853 // Draw was suppressed so we need to for it to happen here. 854 mFullRedrawNeeded = true; 855 scheduleTraversals(); 856 } 857 } 858 } 859 } 860 } 861 862 @Override 863 public void onDisplayRemoved(int displayId) { 864 } 865 866 @Override 867 public void onDisplayAdded(int displayId) { 868 } 869 870 private int toViewScreenState(int displayState) { 871 return displayState == Display.STATE_OFF ? 872 View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON; 873 } 874 }; 875 876 void pokeDrawLockIfNeeded() { 877 final int displayState = mAttachInfo.mDisplayState; 878 if (mView != null && mAdded && mTraversalScheduled 879 && (displayState == Display.STATE_DOZE 880 || displayState == Display.STATE_DOZE_SUSPEND)) { 881 try { 882 mWindowSession.pokeDrawLock(mWindow); 883 } catch (RemoteException ex) { 884 // System server died, oh well. 885 } 886 } 887 } 888 889 @Override 890 public void requestFitSystemWindows() { 891 checkThread(); 892 mApplyInsetsRequested = true; 893 scheduleTraversals(); 894 } 895 896 @Override 897 public void requestLayout() { 898 if (!mHandlingLayoutInLayoutRequest) { 899 checkThread(); 900 mLayoutRequested = true; 901 scheduleTraversals(); 902 } 903 } 904 905 @Override 906 public boolean isLayoutRequested() { 907 return mLayoutRequested; 908 } 909 910 void invalidate() { 911 mDirty.set(0, 0, mWidth, mHeight); 912 if (!mWillDrawSoon) { 913 scheduleTraversals(); 914 } 915 } 916 917 void invalidateWorld(View view) { 918 view.invalidate(); 919 if (view instanceof ViewGroup) { 920 ViewGroup parent = (ViewGroup) view; 921 for (int i = 0; i < parent.getChildCount(); i++) { 922 invalidateWorld(parent.getChildAt(i)); 923 } 924 } 925 } 926 927 @Override 928 public void invalidateChild(View child, Rect dirty) { 929 invalidateChildInParent(null, dirty); 930 } 931 932 @Override 933 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 934 checkThread(); 935 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 936 937 if (dirty == null) { 938 invalidate(); 939 return null; 940 } else if (dirty.isEmpty() && !mIsAnimating) { 941 return null; 942 } 943 944 if (mCurScrollY != 0 || mTranslator != null) { 945 mTempRect.set(dirty); 946 dirty = mTempRect; 947 if (mCurScrollY != 0) { 948 dirty.offset(0, -mCurScrollY); 949 } 950 if (mTranslator != null) { 951 mTranslator.translateRectInAppWindowToScreen(dirty); 952 } 953 if (mAttachInfo.mScalingRequired) { 954 dirty.inset(-1, -1); 955 } 956 } 957 958 invalidateRectOnScreen(dirty); 959 960 return null; 961 } 962 963 private void invalidateRectOnScreen(Rect dirty) { 964 final Rect localDirty = mDirty; 965 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 966 mAttachInfo.mSetIgnoreDirtyState = true; 967 mAttachInfo.mIgnoreDirtyState = true; 968 } 969 970 // Add the new dirty rect to the current one 971 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 972 // Intersect with the bounds of the window to skip 973 // updates that lie outside of the visible region 974 final float appScale = mAttachInfo.mApplicationScale; 975 final boolean intersected = localDirty.intersect(0, 0, 976 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 977 if (!intersected) { 978 localDirty.setEmpty(); 979 } 980 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 981 scheduleTraversals(); 982 } 983 } 984 985 void setWindowStopped(boolean stopped) { 986 if (mStopped != stopped) { 987 mStopped = stopped; 988 if (!mStopped) { 989 scheduleTraversals(); 990 } 991 } 992 } 993 994 /** 995 * Block the input events during an Activity Transition. The KEYCODE_BACK event is allowed 996 * through to allow quick reversal of the Activity Transition. 997 * 998 * @param paused true to pause, false to resume. 999 */ 1000 public void setPausedForTransition(boolean paused) { 1001 mPausedForTransition = paused; 1002 } 1003 1004 @Override 1005 public ViewParent getParent() { 1006 return null; 1007 } 1008 1009 @Override 1010 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 1011 if (child != mView) { 1012 throw new RuntimeException("child is not mine, honest!"); 1013 } 1014 // Note: don't apply scroll offset, because we want to know its 1015 // visibility in the virtual canvas being given to the view hierarchy. 1016 return r.intersect(0, 0, mWidth, mHeight); 1017 } 1018 1019 @Override 1020 public void bringChildToFront(View child) { 1021 } 1022 1023 int getHostVisibility() { 1024 return mAppVisible ? mView.getVisibility() : View.GONE; 1025 } 1026 1027 /** 1028 * Add LayoutTransition to the list of transitions to be started in the next traversal. 1029 * This list will be cleared after the transitions on the list are start()'ed. These 1030 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 1031 * happens during the layout phase of traversal, which we want to complete before any of the 1032 * animations are started (because those animations may side-effect properties that layout 1033 * depends upon, like the bounding rectangles of the affected views). So we add the transition 1034 * to the list and it is started just prior to starting the drawing phase of traversal. 1035 * 1036 * @param transition The LayoutTransition to be started on the next traversal. 1037 * 1038 * @hide 1039 */ 1040 public void requestTransitionStart(LayoutTransition transition) { 1041 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 1042 if (mPendingTransitions == null) { 1043 mPendingTransitions = new ArrayList<LayoutTransition>(); 1044 } 1045 mPendingTransitions.add(transition); 1046 } 1047 } 1048 1049 /** 1050 * Notifies the HardwareRenderer that a new frame will be coming soon. 1051 * Currently only {@link ThreadedRenderer} cares about this, and uses 1052 * this knowledge to adjust the scheduling of off-thread animations 1053 */ 1054 void notifyRendererOfFramePending() { 1055 if (mAttachInfo.mHardwareRenderer != null) { 1056 mAttachInfo.mHardwareRenderer.notifyFramePending(); 1057 } 1058 } 1059 1060 void scheduleTraversals() { 1061 if (!mTraversalScheduled) { 1062 mTraversalScheduled = true; 1063 mTraversalBarrier = mHandler.getLooper().getQueue().postSyncBarrier(); 1064 mChoreographer.postCallback( 1065 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1066 if (!mUnbufferedInputDispatch) { 1067 scheduleConsumeBatchedInput(); 1068 } 1069 notifyRendererOfFramePending(); 1070 pokeDrawLockIfNeeded(); 1071 } 1072 } 1073 1074 void unscheduleTraversals() { 1075 if (mTraversalScheduled) { 1076 mTraversalScheduled = false; 1077 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1078 mChoreographer.removeCallbacks( 1079 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1080 } 1081 } 1082 1083 void doTraversal() { 1084 if (mTraversalScheduled) { 1085 mTraversalScheduled = false; 1086 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1087 1088 if (mProfile) { 1089 Debug.startMethodTracing("ViewAncestor"); 1090 } 1091 1092 performTraversals(); 1093 1094 if (mProfile) { 1095 Debug.stopMethodTracing(); 1096 mProfile = false; 1097 } 1098 } 1099 } 1100 1101 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1102 // Update window's global keep screen on flag: if a view has requested 1103 // that the screen be kept on, then it is always set; otherwise, it is 1104 // set to whatever the client last requested for the global state. 1105 if (mAttachInfo.mKeepScreenOn) { 1106 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1107 } else { 1108 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1109 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1110 } 1111 } 1112 1113 private boolean collectViewAttributes() { 1114 if (mAttachInfo.mRecomputeGlobalAttributes) { 1115 //Log.i(TAG, "Computing view hierarchy attributes!"); 1116 mAttachInfo.mRecomputeGlobalAttributes = false; 1117 boolean oldScreenOn = mAttachInfo.mKeepScreenOn; 1118 mAttachInfo.mKeepScreenOn = false; 1119 mAttachInfo.mSystemUiVisibility = 0; 1120 mAttachInfo.mHasSystemUiListeners = false; 1121 mView.dispatchCollectViewAttributes(mAttachInfo, 0); 1122 mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility; 1123 WindowManager.LayoutParams params = mWindowAttributes; 1124 mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params); 1125 if (mAttachInfo.mKeepScreenOn != oldScreenOn 1126 || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1127 || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1128 applyKeepScreenOnFlag(params); 1129 params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1130 params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners; 1131 mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility); 1132 return true; 1133 } 1134 } 1135 return false; 1136 } 1137 1138 private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) { 1139 int vis = 0; 1140 // Translucent decor window flags imply stable system ui visibility. 1141 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) { 1142 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; 1143 } 1144 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) { 1145 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 1146 } 1147 return vis; 1148 } 1149 1150 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1151 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1152 int childWidthMeasureSpec; 1153 int childHeightMeasureSpec; 1154 boolean windowSizeMayChange = false; 1155 1156 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1157 "Measuring " + host + " in display " + desiredWindowWidth 1158 + "x" + desiredWindowHeight + "..."); 1159 1160 boolean goodMeasure = false; 1161 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1162 // On large screens, we don't want to allow dialogs to just 1163 // stretch to fill the entire width of the screen to display 1164 // one line of text. First try doing the layout at a smaller 1165 // size to see if it will fit. 1166 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1167 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1168 int baseSize = 0; 1169 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1170 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1171 } 1172 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1173 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1174 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1175 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1176 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1177 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1178 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1179 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1180 goodMeasure = true; 1181 } else { 1182 // Didn't fit in that size... try expanding a bit. 1183 baseSize = (baseSize+desiredWindowWidth)/2; 1184 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1185 + baseSize); 1186 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1187 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1188 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1189 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1190 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1191 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1192 goodMeasure = true; 1193 } 1194 } 1195 } 1196 } 1197 1198 if (!goodMeasure) { 1199 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1200 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1201 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1202 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1203 windowSizeMayChange = true; 1204 } 1205 } 1206 1207 if (DBG) { 1208 System.out.println("======================================"); 1209 System.out.println("performTraversals -- after measure"); 1210 host.debug(); 1211 } 1212 1213 return windowSizeMayChange; 1214 } 1215 1216 /** 1217 * Modifies the input matrix such that it maps view-local coordinates to 1218 * on-screen coordinates. 1219 * 1220 * @param m input matrix to modify 1221 */ 1222 void transformMatrixToGlobal(Matrix m) { 1223 m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 1224 } 1225 1226 /** 1227 * Modifies the input matrix such that it maps on-screen coordinates to 1228 * view-local coordinates. 1229 * 1230 * @param m input matrix to modify 1231 */ 1232 void transformMatrixToLocal(Matrix m) { 1233 m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 1234 } 1235 1236 /* package */ WindowInsets getWindowInsets(boolean forceConstruct) { 1237 if (mLastWindowInsets == null || forceConstruct) { 1238 mDispatchContentInsets.set(mAttachInfo.mContentInsets); 1239 mDispatchStableInsets.set(mAttachInfo.mStableInsets); 1240 Rect contentInsets = mDispatchContentInsets; 1241 Rect stableInsets = mDispatchStableInsets; 1242 // For dispatch we preserve old logic, but for direct requests from Views we allow to 1243 // immediately use pending insets. 1244 if (!forceConstruct 1245 && (!mPendingContentInsets.equals(contentInsets) || 1246 !mPendingStableInsets.equals(stableInsets))) { 1247 contentInsets = mPendingContentInsets; 1248 stableInsets = mPendingStableInsets; 1249 } 1250 Rect outsets = mAttachInfo.mOutsets; 1251 if (outsets.left > 0 || outsets.top > 0 || outsets.right > 0 || outsets.bottom > 0) { 1252 contentInsets = new Rect(contentInsets.left + outsets.left, 1253 contentInsets.top + outsets.top, contentInsets.right + outsets.right, 1254 contentInsets.bottom + outsets.bottom); 1255 } 1256 mLastWindowInsets = new WindowInsets(contentInsets, 1257 null /* windowDecorInsets */, stableInsets, 1258 mContext.getResources().getConfiguration().isScreenRound()); 1259 } 1260 return mLastWindowInsets; 1261 } 1262 1263 void dispatchApplyInsets(View host) { 1264 host.dispatchApplyWindowInsets(getWindowInsets(true /* forceConstruct */)); 1265 } 1266 1267 private void performTraversals() { 1268 // cache mView since it is used so much below... 1269 final View host = mView; 1270 1271 if (DBG) { 1272 System.out.println("======================================"); 1273 System.out.println("performTraversals"); 1274 host.debug(); 1275 } 1276 1277 if (host == null || !mAdded) 1278 return; 1279 1280 mIsInTraversal = true; 1281 mWillDrawSoon = true; 1282 boolean windowSizeMayChange = false; 1283 boolean newSurface = false; 1284 boolean surfaceChanged = false; 1285 WindowManager.LayoutParams lp = mWindowAttributes; 1286 1287 int desiredWindowWidth; 1288 int desiredWindowHeight; 1289 1290 final int viewVisibility = getHostVisibility(); 1291 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1292 || mNewSurfaceNeeded; 1293 1294 WindowManager.LayoutParams params = null; 1295 if (mWindowAttributesChanged) { 1296 mWindowAttributesChanged = false; 1297 surfaceChanged = true; 1298 params = lp; 1299 } 1300 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 1301 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1302 params = lp; 1303 mFullRedrawNeeded = true; 1304 mLayoutRequested = true; 1305 if (mLastInCompatMode) { 1306 params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1307 mLastInCompatMode = false; 1308 } else { 1309 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1310 mLastInCompatMode = true; 1311 } 1312 } 1313 1314 mWindowAttributesChangesFlag = 0; 1315 1316 Rect frame = mWinFrame; 1317 if (mFirst) { 1318 mFullRedrawNeeded = true; 1319 mLayoutRequested = true; 1320 1321 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1322 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1323 // NOTE -- system code, won't try to do compat mode. 1324 Point size = new Point(); 1325 mDisplay.getRealSize(size); 1326 desiredWindowWidth = size.x; 1327 desiredWindowHeight = size.y; 1328 } else { 1329 DisplayMetrics packageMetrics = 1330 mView.getContext().getResources().getDisplayMetrics(); 1331 desiredWindowWidth = packageMetrics.widthPixels; 1332 desiredWindowHeight = packageMetrics.heightPixels; 1333 } 1334 1335 // We used to use the following condition to choose 32 bits drawing caches: 1336 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1337 // However, windows are now always 32 bits by default, so choose 32 bits 1338 mAttachInfo.mUse32BitDrawingCache = true; 1339 mAttachInfo.mHasWindowFocus = false; 1340 mAttachInfo.mWindowVisibility = viewVisibility; 1341 mAttachInfo.mRecomputeGlobalAttributes = false; 1342 viewVisibilityChanged = false; 1343 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1344 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1345 // Set the layout direction if it has not been set before (inherit is the default) 1346 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1347 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1348 } 1349 host.dispatchAttachedToWindow(mAttachInfo, 0); 1350 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1351 dispatchApplyInsets(host); 1352 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1353 1354 } else { 1355 desiredWindowWidth = frame.width(); 1356 desiredWindowHeight = frame.height(); 1357 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1358 if (DEBUG_ORIENTATION) Log.v(TAG, 1359 "View " + host + " resized to: " + frame); 1360 mFullRedrawNeeded = true; 1361 mLayoutRequested = true; 1362 windowSizeMayChange = true; 1363 } 1364 } 1365 1366 if (viewVisibilityChanged) { 1367 mAttachInfo.mWindowVisibility = viewVisibility; 1368 host.dispatchWindowVisibilityChanged(viewVisibility); 1369 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1370 destroyHardwareResources(); 1371 } 1372 if (viewVisibility == View.GONE) { 1373 // After making a window gone, we will count it as being 1374 // shown for the first time the next time it gets focus. 1375 mHasHadWindowFocus = false; 1376 } 1377 } 1378 1379 // Non-visible windows can't hold accessibility focus. 1380 if (mAttachInfo.mWindowVisibility != View.VISIBLE) { 1381 host.clearAccessibilityFocus(); 1382 } 1383 1384 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1385 getRunQueue().executeActions(mAttachInfo.mHandler); 1386 1387 boolean insetsChanged = false; 1388 1389 boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw); 1390 if (layoutRequested) { 1391 1392 final Resources res = mView.getContext().getResources(); 1393 1394 if (mFirst) { 1395 // make sure touch mode code executes by setting cached value 1396 // to opposite of the added touch mode. 1397 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1398 ensureTouchModeLocally(mAddedTouchMode); 1399 } else { 1400 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1401 insetsChanged = true; 1402 } 1403 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1404 insetsChanged = true; 1405 } 1406 if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) { 1407 insetsChanged = true; 1408 } 1409 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1410 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1411 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1412 + mAttachInfo.mVisibleInsets); 1413 } 1414 if (!mPendingOutsets.equals(mAttachInfo.mOutsets)) { 1415 insetsChanged = true; 1416 } 1417 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1418 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1419 windowSizeMayChange = true; 1420 1421 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1422 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1423 // NOTE -- system code, won't try to do compat mode. 1424 Point size = new Point(); 1425 mDisplay.getRealSize(size); 1426 desiredWindowWidth = size.x; 1427 desiredWindowHeight = size.y; 1428 } else { 1429 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1430 desiredWindowWidth = packageMetrics.widthPixels; 1431 desiredWindowHeight = packageMetrics.heightPixels; 1432 } 1433 } 1434 } 1435 1436 // Ask host how big it wants to be 1437 windowSizeMayChange |= measureHierarchy(host, lp, res, 1438 desiredWindowWidth, desiredWindowHeight); 1439 } 1440 1441 if (collectViewAttributes()) { 1442 params = lp; 1443 } 1444 if (mAttachInfo.mForceReportNewAttributes) { 1445 mAttachInfo.mForceReportNewAttributes = false; 1446 params = lp; 1447 } 1448 1449 if (mFirst || mAttachInfo.mViewVisibilityChanged) { 1450 mAttachInfo.mViewVisibilityChanged = false; 1451 int resizeMode = mSoftInputMode & 1452 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1453 // If we are in auto resize mode, then we need to determine 1454 // what mode to use now. 1455 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1456 final int N = mAttachInfo.mScrollContainers.size(); 1457 for (int i=0; i<N; i++) { 1458 if (mAttachInfo.mScrollContainers.get(i).isShown()) { 1459 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1460 } 1461 } 1462 if (resizeMode == 0) { 1463 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1464 } 1465 if ((lp.softInputMode & 1466 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1467 lp.softInputMode = (lp.softInputMode & 1468 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1469 resizeMode; 1470 params = lp; 1471 } 1472 } 1473 } 1474 1475 if (params != null) { 1476 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1477 if (!PixelFormat.formatHasAlpha(params.format)) { 1478 params.format = PixelFormat.TRANSLUCENT; 1479 } 1480 } 1481 mAttachInfo.mOverscanRequested = (params.flags 1482 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1483 } 1484 1485 if (mApplyInsetsRequested) { 1486 mApplyInsetsRequested = false; 1487 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1488 dispatchApplyInsets(host); 1489 if (mLayoutRequested) { 1490 // Short-circuit catching a new layout request here, so 1491 // we don't need to go through two layout passes when things 1492 // change due to fitting system windows, which can happen a lot. 1493 windowSizeMayChange |= measureHierarchy(host, lp, 1494 mView.getContext().getResources(), 1495 desiredWindowWidth, desiredWindowHeight); 1496 } 1497 } 1498 1499 if (layoutRequested) { 1500 // Clear this now, so that if anything requests a layout in the 1501 // rest of this function we will catch it and re-run a full 1502 // layout pass. 1503 mLayoutRequested = false; 1504 } 1505 1506 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1507 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1508 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1509 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1510 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1511 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1512 1513 // Determine whether to compute insets. 1514 // If there are no inset listeners remaining then we may still need to compute 1515 // insets in case the old insets were non-empty and must be reset. 1516 final boolean computesInternalInsets = 1517 mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() 1518 || mAttachInfo.mHasNonEmptyGivenInternalInsets; 1519 1520 boolean insetsPending = false; 1521 int relayoutResult = 0; 1522 1523 if (mFirst || windowShouldResize || insetsChanged || 1524 viewVisibilityChanged || params != null) { 1525 1526 if (viewVisibility == View.VISIBLE) { 1527 // If this window is giving internal insets to the window 1528 // manager, and it is being added or changing its visibility, 1529 // then we want to first give the window manager "fake" 1530 // insets to cause it to effectively ignore the content of 1531 // the window during layout. This avoids it briefly causing 1532 // other windows to resize/move based on the raw frame of the 1533 // window, waiting until we can finish laying out this window 1534 // and get back to the window manager with the ultimately 1535 // computed insets. 1536 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1537 } 1538 1539 if (mSurfaceHolder != null) { 1540 mSurfaceHolder.mSurfaceLock.lock(); 1541 mDrawingAllowed = true; 1542 } 1543 1544 boolean hwInitialized = false; 1545 boolean contentInsetsChanged = false; 1546 boolean hadSurface = mSurface.isValid(); 1547 1548 try { 1549 if (DEBUG_LAYOUT) { 1550 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1551 host.getMeasuredHeight() + ", params=" + params); 1552 } 1553 1554 if (mAttachInfo.mHardwareRenderer != null) { 1555 // relayoutWindow may decide to destroy mSurface. As that decision 1556 // happens in WindowManager service, we need to be defensive here 1557 // and stop using the surface in case it gets destroyed. 1558 if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) { 1559 // Animations were running so we need to push a frame 1560 // to resume them 1561 mDirty.set(0, 0, mWidth, mHeight); 1562 } 1563 mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED); 1564 } 1565 final int surfaceGenerationId = mSurface.getGenerationId(); 1566 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1567 1568 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1569 + " overscan=" + mPendingOverscanInsets.toShortString() 1570 + " content=" + mPendingContentInsets.toShortString() 1571 + " visible=" + mPendingVisibleInsets.toShortString() 1572 + " visible=" + mPendingStableInsets.toShortString() 1573 + " outsets=" + mPendingOutsets.toShortString() 1574 + " surface=" + mSurface); 1575 1576 if (mPendingConfiguration.seq != 0) { 1577 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1578 + mPendingConfiguration); 1579 updateConfiguration(mPendingConfiguration, !mFirst); 1580 mPendingConfiguration.seq = 0; 1581 } 1582 1583 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1584 mAttachInfo.mOverscanInsets); 1585 contentInsetsChanged = !mPendingContentInsets.equals( 1586 mAttachInfo.mContentInsets); 1587 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1588 mAttachInfo.mVisibleInsets); 1589 final boolean stableInsetsChanged = !mPendingStableInsets.equals( 1590 mAttachInfo.mStableInsets); 1591 final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets); 1592 if (contentInsetsChanged) { 1593 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1594 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1595 + mAttachInfo.mContentInsets); 1596 } 1597 if (overscanInsetsChanged) { 1598 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1599 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1600 + mAttachInfo.mOverscanInsets); 1601 // Need to relayout with content insets. 1602 contentInsetsChanged = true; 1603 } 1604 if (stableInsetsChanged) { 1605 mAttachInfo.mStableInsets.set(mPendingStableInsets); 1606 if (DEBUG_LAYOUT) Log.v(TAG, "Decor insets changing to: " 1607 + mAttachInfo.mStableInsets); 1608 // Need to relayout with content insets. 1609 contentInsetsChanged = true; 1610 } 1611 if (contentInsetsChanged || mLastSystemUiVisibility != 1612 mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested 1613 || mLastOverscanRequested != mAttachInfo.mOverscanRequested 1614 || outsetsChanged) { 1615 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1616 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1617 mAttachInfo.mOutsets.set(mPendingOutsets); 1618 mApplyInsetsRequested = false; 1619 dispatchApplyInsets(host); 1620 } 1621 if (visibleInsetsChanged) { 1622 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1623 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1624 + mAttachInfo.mVisibleInsets); 1625 } 1626 1627 if (!hadSurface) { 1628 if (mSurface.isValid()) { 1629 // If we are creating a new surface, then we need to 1630 // completely redraw it. Also, when we get to the 1631 // point of drawing it we will hold off and schedule 1632 // a new traversal instead. This is so we can tell the 1633 // window manager about all of the windows being displayed 1634 // before actually drawing them, so it can display then 1635 // all at once. 1636 newSurface = true; 1637 mFullRedrawNeeded = true; 1638 mPreviousTransparentRegion.setEmpty(); 1639 1640 // Only initialize up-front if transparent regions are not 1641 // requested, otherwise defer to see if the entire window 1642 // will be transparent 1643 if (mAttachInfo.mHardwareRenderer != null) { 1644 try { 1645 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1646 mSurface); 1647 if (hwInitialized && (host.mPrivateFlags 1648 & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) == 0) { 1649 // Don't pre-allocate if transparent regions 1650 // are requested as they may not be needed 1651 mSurface.allocateBuffers(); 1652 } 1653 } catch (OutOfResourcesException e) { 1654 handleOutOfResourcesException(e); 1655 return; 1656 } 1657 } 1658 } 1659 } else if (!mSurface.isValid()) { 1660 // If the surface has been removed, then reset the scroll 1661 // positions. 1662 if (mLastScrolledFocus != null) { 1663 mLastScrolledFocus.clear(); 1664 } 1665 mScrollY = mCurScrollY = 0; 1666 if (mView instanceof RootViewSurfaceTaker) { 1667 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 1668 } 1669 if (mScroller != null) { 1670 mScroller.abortAnimation(); 1671 } 1672 // Our surface is gone 1673 if (mAttachInfo.mHardwareRenderer != null && 1674 mAttachInfo.mHardwareRenderer.isEnabled()) { 1675 mAttachInfo.mHardwareRenderer.destroy(); 1676 } 1677 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1678 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1679 mFullRedrawNeeded = true; 1680 try { 1681 mAttachInfo.mHardwareRenderer.updateSurface(mSurface); 1682 } catch (OutOfResourcesException e) { 1683 handleOutOfResourcesException(e); 1684 return; 1685 } 1686 } 1687 } catch (RemoteException e) { 1688 } 1689 1690 if (DEBUG_ORIENTATION) Log.v( 1691 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1692 1693 mAttachInfo.mWindowLeft = frame.left; 1694 mAttachInfo.mWindowTop = frame.top; 1695 1696 // !!FIXME!! This next section handles the case where we did not get the 1697 // window size we asked for. We should avoid this by getting a maximum size from 1698 // the window session beforehand. 1699 if (mWidth != frame.width() || mHeight != frame.height()) { 1700 mWidth = frame.width(); 1701 mHeight = frame.height(); 1702 } 1703 1704 if (mSurfaceHolder != null) { 1705 // The app owns the surface; tell it about what is going on. 1706 if (mSurface.isValid()) { 1707 // XXX .copyFrom() doesn't work! 1708 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1709 mSurfaceHolder.mSurface = mSurface; 1710 } 1711 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1712 mSurfaceHolder.mSurfaceLock.unlock(); 1713 if (mSurface.isValid()) { 1714 if (!hadSurface) { 1715 mSurfaceHolder.ungetCallbacks(); 1716 1717 mIsCreating = true; 1718 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1719 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1720 if (callbacks != null) { 1721 for (SurfaceHolder.Callback c : callbacks) { 1722 c.surfaceCreated(mSurfaceHolder); 1723 } 1724 } 1725 surfaceChanged = true; 1726 } 1727 if (surfaceChanged) { 1728 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1729 lp.format, mWidth, mHeight); 1730 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1731 if (callbacks != null) { 1732 for (SurfaceHolder.Callback c : callbacks) { 1733 c.surfaceChanged(mSurfaceHolder, lp.format, 1734 mWidth, mHeight); 1735 } 1736 } 1737 } 1738 mIsCreating = false; 1739 } else if (hadSurface) { 1740 mSurfaceHolder.ungetCallbacks(); 1741 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1742 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1743 if (callbacks != null) { 1744 for (SurfaceHolder.Callback c : callbacks) { 1745 c.surfaceDestroyed(mSurfaceHolder); 1746 } 1747 } 1748 mSurfaceHolder.mSurfaceLock.lock(); 1749 try { 1750 mSurfaceHolder.mSurface = new Surface(); 1751 } finally { 1752 mSurfaceHolder.mSurfaceLock.unlock(); 1753 } 1754 } 1755 } 1756 1757 final HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 1758 if (hardwareRenderer != null && hardwareRenderer.isEnabled()) { 1759 if (hwInitialized 1760 || mWidth != hardwareRenderer.getWidth() 1761 || mHeight != hardwareRenderer.getHeight()) { 1762 hardwareRenderer.setup(mWidth, mHeight, mAttachInfo, 1763 mWindowAttributes.surfaceInsets); 1764 if (!hwInitialized) { 1765 hardwareRenderer.invalidate(mSurface); 1766 mFullRedrawNeeded = true; 1767 } 1768 } 1769 } 1770 1771 if (!mStopped || mReportNextDraw) { 1772 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1773 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1774 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1775 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1776 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1777 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1778 1779 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1780 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1781 + " mHeight=" + mHeight 1782 + " measuredHeight=" + host.getMeasuredHeight() 1783 + " coveredInsetsChanged=" + contentInsetsChanged); 1784 1785 // Ask host how big it wants to be 1786 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1787 1788 // Implementation of weights from WindowManager.LayoutParams 1789 // We just grow the dimensions as needed and re-measure if 1790 // needs be 1791 int width = host.getMeasuredWidth(); 1792 int height = host.getMeasuredHeight(); 1793 boolean measureAgain = false; 1794 1795 if (lp.horizontalWeight > 0.0f) { 1796 width += (int) ((mWidth - width) * lp.horizontalWeight); 1797 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1798 MeasureSpec.EXACTLY); 1799 measureAgain = true; 1800 } 1801 if (lp.verticalWeight > 0.0f) { 1802 height += (int) ((mHeight - height) * lp.verticalWeight); 1803 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1804 MeasureSpec.EXACTLY); 1805 measureAgain = true; 1806 } 1807 1808 if (measureAgain) { 1809 if (DEBUG_LAYOUT) Log.v(TAG, 1810 "And hey let's measure once more: width=" + width 1811 + " height=" + height); 1812 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1813 } 1814 1815 layoutRequested = true; 1816 } 1817 } 1818 } else { 1819 // Not the first pass and no window/insets/visibility change but the window 1820 // may have moved and we need check that and if so to update the left and right 1821 // in the attach info. We translate only the window frame since on window move 1822 // the window manager tells us only for the new frame but the insets are the 1823 // same and we do not want to translate them more than once. 1824 1825 // TODO: Well, we are checking whether the frame has changed similarly 1826 // to how this is done for the insets. This is however incorrect since 1827 // the insets and the frame are translated. For example, the old frame 1828 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1829 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1830 // true since we are comparing a not translated value to a translated one. 1831 // This scenario is rare but we may want to fix that. 1832 1833 final boolean windowMoved = (mAttachInfo.mWindowLeft != frame.left 1834 || mAttachInfo.mWindowTop != frame.top); 1835 if (windowMoved) { 1836 if (mTranslator != null) { 1837 mTranslator.translateRectInScreenToAppWinFrame(frame); 1838 } 1839 mAttachInfo.mWindowLeft = frame.left; 1840 mAttachInfo.mWindowTop = frame.top; 1841 1842 // Update the light position for the new window offsets. 1843 if (mAttachInfo.mHardwareRenderer != null) { 1844 mAttachInfo.mHardwareRenderer.setLightCenter(mAttachInfo); 1845 } 1846 } 1847 } 1848 1849 final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw); 1850 boolean triggerGlobalLayoutListener = didLayout 1851 || mAttachInfo.mRecomputeGlobalAttributes; 1852 if (didLayout) { 1853 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1854 1855 // By this point all views have been sized and positioned 1856 // We can compute the transparent area 1857 1858 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1859 // start out transparent 1860 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1861 host.getLocationInWindow(mTmpLocation); 1862 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1863 mTmpLocation[0] + host.mRight - host.mLeft, 1864 mTmpLocation[1] + host.mBottom - host.mTop); 1865 1866 host.gatherTransparentRegion(mTransparentRegion); 1867 if (mTranslator != null) { 1868 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1869 } 1870 1871 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1872 mPreviousTransparentRegion.set(mTransparentRegion); 1873 mFullRedrawNeeded = true; 1874 // reconfigure window manager 1875 try { 1876 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1877 } catch (RemoteException e) { 1878 } 1879 } 1880 } 1881 1882 if (DBG) { 1883 System.out.println("======================================"); 1884 System.out.println("performTraversals -- after setFrame"); 1885 host.debug(); 1886 } 1887 } 1888 1889 if (triggerGlobalLayoutListener) { 1890 mAttachInfo.mRecomputeGlobalAttributes = false; 1891 mAttachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1892 } 1893 1894 if (computesInternalInsets) { 1895 // Clear the original insets. 1896 final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets; 1897 insets.reset(); 1898 1899 // Compute new insets in place. 1900 mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1901 mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty(); 1902 1903 // Tell the window manager. 1904 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1905 mLastGivenInsets.set(insets); 1906 1907 // Translate insets to screen coordinates if needed. 1908 final Rect contentInsets; 1909 final Rect visibleInsets; 1910 final Region touchableRegion; 1911 if (mTranslator != null) { 1912 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1913 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1914 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1915 } else { 1916 contentInsets = insets.contentInsets; 1917 visibleInsets = insets.visibleInsets; 1918 touchableRegion = insets.touchableRegion; 1919 } 1920 1921 try { 1922 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1923 contentInsets, visibleInsets, touchableRegion); 1924 } catch (RemoteException e) { 1925 } 1926 } 1927 } 1928 1929 boolean skipDraw = false; 1930 1931 if (mFirst) { 1932 // handle first focus request 1933 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1934 + mView.hasFocus()); 1935 if (mView != null) { 1936 if (!mView.hasFocus()) { 1937 mView.requestFocus(View.FOCUS_FORWARD); 1938 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1939 + mView.findFocus()); 1940 } else { 1941 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1942 + mView.findFocus()); 1943 } 1944 } 1945 } else if (mWindowsAnimating) { 1946 if (mRemainingFrameCount <= 0) { 1947 skipDraw = true; 1948 } 1949 mRemainingFrameCount--; 1950 } 1951 1952 mFirst = false; 1953 mWillDrawSoon = false; 1954 mNewSurfaceNeeded = false; 1955 mViewVisibility = viewVisibility; 1956 1957 if (mAttachInfo.mHasWindowFocus && !isInLocalFocusMode()) { 1958 final boolean imTarget = WindowManager.LayoutParams 1959 .mayUseInputMethod(mWindowAttributes.flags); 1960 if (imTarget != mLastWasImTarget) { 1961 mLastWasImTarget = imTarget; 1962 InputMethodManager imm = InputMethodManager.peekInstance(); 1963 if (imm != null && imTarget) { 1964 imm.onPreWindowFocus(mView, true /* hasWindowFocus */); 1965 imm.onPostWindowFocus(mView, mView.findFocus(), 1966 mWindowAttributes.softInputMode, 1967 !mHasHadWindowFocus, mWindowAttributes.flags); 1968 } 1969 } 1970 } 1971 1972 // Remember if we must report the next draw. 1973 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1974 mReportNextDraw = true; 1975 } 1976 1977 boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || 1978 viewVisibility != View.VISIBLE; 1979 1980 if (!cancelDraw && !newSurface) { 1981 if (!skipDraw || mReportNextDraw) { 1982 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1983 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1984 mPendingTransitions.get(i).startChangingAnimations(); 1985 } 1986 mPendingTransitions.clear(); 1987 } 1988 1989 performDraw(); 1990 } 1991 } else { 1992 if (viewVisibility == View.VISIBLE) { 1993 // Try again 1994 scheduleTraversals(); 1995 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1996 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1997 mPendingTransitions.get(i).endChangingAnimations(); 1998 } 1999 mPendingTransitions.clear(); 2000 } 2001 } 2002 2003 mIsInTraversal = false; 2004 } 2005 2006 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 2007 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 2008 try { 2009 if (!mWindowSession.outOfMemory(mWindow) && 2010 Process.myUid() != Process.SYSTEM_UID) { 2011 Slog.w(TAG, "No processes killed for memory; killing self"); 2012 Process.killProcess(Process.myPid()); 2013 } 2014 } catch (RemoteException ex) { 2015 } 2016 mLayoutRequested = true; // ask wm for a new surface next time. 2017 } 2018 2019 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 2020 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 2021 try { 2022 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 2023 } finally { 2024 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2025 } 2026 } 2027 2028 /** 2029 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 2030 * is currently undergoing a layout pass. 2031 * 2032 * @return whether the view hierarchy is currently undergoing a layout pass 2033 */ 2034 boolean isInLayout() { 2035 return mInLayout; 2036 } 2037 2038 /** 2039 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 2040 * undergoing a layout pass. requestLayout() should not generally be called during layout, 2041 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 2042 * all children in that container hierarchy are measured and laid out at the end of the layout 2043 * pass for that container). If requestLayout() is called anyway, we handle it correctly 2044 * by registering all requesters during a frame as it proceeds. At the end of the frame, 2045 * we check all of those views to see if any still have pending layout requests, which 2046 * indicates that they were not correctly handled by their container hierarchy. If that is 2047 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 2048 * to blank containers, and force a second request/measure/layout pass in this frame. If 2049 * more requestLayout() calls are received during that second layout pass, we post those 2050 * requests to the next frame to avoid possible infinite loops. 2051 * 2052 * <p>The return value from this method indicates whether the request should proceed 2053 * (if it is a request during the first layout pass) or should be skipped and posted to the 2054 * next frame (if it is a request during the second layout pass).</p> 2055 * 2056 * @param view the view that requested the layout. 2057 * 2058 * @return true if request should proceed, false otherwise. 2059 */ 2060 boolean requestLayoutDuringLayout(final View view) { 2061 if (view.mParent == null || view.mAttachInfo == null) { 2062 // Would not normally trigger another layout, so just let it pass through as usual 2063 return true; 2064 } 2065 if (!mLayoutRequesters.contains(view)) { 2066 mLayoutRequesters.add(view); 2067 } 2068 if (!mHandlingLayoutInLayoutRequest) { 2069 // Let the request proceed normally; it will be processed in a second layout pass 2070 // if necessary 2071 return true; 2072 } else { 2073 // Don't let the request proceed during the second layout pass. 2074 // It will post to the next frame instead. 2075 return false; 2076 } 2077 } 2078 2079 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 2080 int desiredWindowHeight) { 2081 mLayoutRequested = false; 2082 mScrollMayChange = true; 2083 mInLayout = true; 2084 2085 final View host = mView; 2086 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 2087 Log.v(TAG, "Laying out " + host + " to (" + 2088 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 2089 } 2090 2091 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2092 try { 2093 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2094 2095 mInLayout = false; 2096 int numViewsRequestingLayout = mLayoutRequesters.size(); 2097 if (numViewsRequestingLayout > 0) { 2098 // requestLayout() was called during layout. 2099 // If no layout-request flags are set on the requesting views, there is no problem. 2100 // If some requests are still pending, then we need to clear those flags and do 2101 // a full request/measure/layout pass to handle this situation. 2102 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2103 false); 2104 if (validLayoutRequesters != null) { 2105 // Set this flag to indicate that any further requests are happening during 2106 // the second pass, which may result in posting those requests to the next 2107 // frame instead 2108 mHandlingLayoutInLayoutRequest = true; 2109 2110 // Process fresh layout requests, then measure and layout 2111 int numValidRequests = validLayoutRequesters.size(); 2112 for (int i = 0; i < numValidRequests; ++i) { 2113 final View view = validLayoutRequesters.get(i); 2114 Log.w("View", "requestLayout() improperly called by " + view + 2115 " during layout: running second layout pass"); 2116 view.requestLayout(); 2117 } 2118 measureHierarchy(host, lp, mView.getContext().getResources(), 2119 desiredWindowWidth, desiredWindowHeight); 2120 mInLayout = true; 2121 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2122 2123 mHandlingLayoutInLayoutRequest = false; 2124 2125 // Check the valid requests again, this time without checking/clearing the 2126 // layout flags, since requests happening during the second pass get noop'd 2127 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2128 if (validLayoutRequesters != null) { 2129 final ArrayList<View> finalRequesters = validLayoutRequesters; 2130 // Post second-pass requests to the next frame 2131 getRunQueue().post(new Runnable() { 2132 @Override 2133 public void run() { 2134 int numValidRequests = finalRequesters.size(); 2135 for (int i = 0; i < numValidRequests; ++i) { 2136 final View view = finalRequesters.get(i); 2137 Log.w("View", "requestLayout() improperly called by " + view + 2138 " during second layout pass: posting in next frame"); 2139 view.requestLayout(); 2140 } 2141 } 2142 }); 2143 } 2144 } 2145 2146 } 2147 } finally { 2148 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2149 } 2150 mInLayout = false; 2151 } 2152 2153 /** 2154 * This method is called during layout when there have been calls to requestLayout() during 2155 * layout. It walks through the list of views that requested layout to determine which ones 2156 * still need it, based on visibility in the hierarchy and whether they have already been 2157 * handled (as is usually the case with ListView children). 2158 * 2159 * @param layoutRequesters The list of views that requested layout during layout 2160 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2161 * If so, the FORCE_LAYOUT flag was not set on requesters. 2162 * @return A list of the actual views that still need to be laid out. 2163 */ 2164 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2165 boolean secondLayoutRequests) { 2166 2167 int numViewsRequestingLayout = layoutRequesters.size(); 2168 ArrayList<View> validLayoutRequesters = null; 2169 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2170 View view = layoutRequesters.get(i); 2171 if (view != null && view.mAttachInfo != null && view.mParent != null && 2172 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2173 View.PFLAG_FORCE_LAYOUT)) { 2174 boolean gone = false; 2175 View parent = view; 2176 // Only trigger new requests for views in a non-GONE hierarchy 2177 while (parent != null) { 2178 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2179 gone = true; 2180 break; 2181 } 2182 if (parent.mParent instanceof View) { 2183 parent = (View) parent.mParent; 2184 } else { 2185 parent = null; 2186 } 2187 } 2188 if (!gone) { 2189 if (validLayoutRequesters == null) { 2190 validLayoutRequesters = new ArrayList<View>(); 2191 } 2192 validLayoutRequesters.add(view); 2193 } 2194 } 2195 } 2196 if (!secondLayoutRequests) { 2197 // If we're checking the layout flags, then we need to clean them up also 2198 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2199 View view = layoutRequesters.get(i); 2200 while (view != null && 2201 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2202 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2203 if (view.mParent instanceof View) { 2204 view = (View) view.mParent; 2205 } else { 2206 view = null; 2207 } 2208 } 2209 } 2210 } 2211 layoutRequesters.clear(); 2212 return validLayoutRequesters; 2213 } 2214 2215 @Override 2216 public void requestTransparentRegion(View child) { 2217 // the test below should not fail unless someone is messing with us 2218 checkThread(); 2219 if (mView == child) { 2220 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2221 // Need to make sure we re-evaluate the window attributes next 2222 // time around, to ensure the window has the correct format. 2223 mWindowAttributesChanged = true; 2224 mWindowAttributesChangesFlag = 0; 2225 requestLayout(); 2226 } 2227 } 2228 2229 /** 2230 * Figures out the measure spec for the root view in a window based on it's 2231 * layout params. 2232 * 2233 * @param windowSize 2234 * The available width or height of the window 2235 * 2236 * @param rootDimension 2237 * The layout params for one dimension (width or height) of the 2238 * window. 2239 * 2240 * @return The measure spec to use to measure the root view. 2241 */ 2242 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2243 int measureSpec; 2244 switch (rootDimension) { 2245 2246 case ViewGroup.LayoutParams.MATCH_PARENT: 2247 // Window can't resize. Force root view to be windowSize. 2248 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2249 break; 2250 case ViewGroup.LayoutParams.WRAP_CONTENT: 2251 // Window can resize. Set max size for root view. 2252 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2253 break; 2254 default: 2255 // Window wants to be an exact size. Force root view to be that size. 2256 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2257 break; 2258 } 2259 return measureSpec; 2260 } 2261 2262 int mHardwareXOffset; 2263 int mHardwareYOffset; 2264 2265 @Override 2266 public void onHardwarePreDraw(DisplayListCanvas canvas) { 2267 canvas.translate(-mHardwareXOffset, -mHardwareYOffset); 2268 } 2269 2270 @Override 2271 public void onHardwarePostDraw(DisplayListCanvas canvas) { 2272 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2273 } 2274 2275 /** 2276 * @hide 2277 */ 2278 void outputDisplayList(View view) { 2279 view.mRenderNode.output(); 2280 } 2281 2282 /** 2283 * @see #PROPERTY_PROFILE_RENDERING 2284 */ 2285 private void profileRendering(boolean enabled) { 2286 if (mProfileRendering) { 2287 mRenderProfilingEnabled = enabled; 2288 2289 if (mRenderProfiler != null) { 2290 mChoreographer.removeFrameCallback(mRenderProfiler); 2291 } 2292 if (mRenderProfilingEnabled) { 2293 if (mRenderProfiler == null) { 2294 mRenderProfiler = new Choreographer.FrameCallback() { 2295 @Override 2296 public void doFrame(long frameTimeNanos) { 2297 mDirty.set(0, 0, mWidth, mHeight); 2298 scheduleTraversals(); 2299 if (mRenderProfilingEnabled) { 2300 mChoreographer.postFrameCallback(mRenderProfiler); 2301 } 2302 } 2303 }; 2304 } 2305 mChoreographer.postFrameCallback(mRenderProfiler); 2306 } else { 2307 mRenderProfiler = null; 2308 } 2309 } 2310 } 2311 2312 /** 2313 * Called from draw() when DEBUG_FPS is enabled 2314 */ 2315 private void trackFPS() { 2316 // Tracks frames per second drawn. First value in a series of draws may be bogus 2317 // because it down not account for the intervening idle time 2318 long nowTime = System.currentTimeMillis(); 2319 if (mFpsStartTime < 0) { 2320 mFpsStartTime = mFpsPrevTime = nowTime; 2321 mFpsNumFrames = 0; 2322 } else { 2323 ++mFpsNumFrames; 2324 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2325 long frameTime = nowTime - mFpsPrevTime; 2326 long totalTime = nowTime - mFpsStartTime; 2327 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2328 mFpsPrevTime = nowTime; 2329 if (totalTime > 1000) { 2330 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2331 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2332 mFpsStartTime = nowTime; 2333 mFpsNumFrames = 0; 2334 } 2335 } 2336 } 2337 2338 private void performDraw() { 2339 if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) { 2340 return; 2341 } 2342 2343 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2344 mFullRedrawNeeded = false; 2345 2346 mIsDrawing = true; 2347 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2348 try { 2349 draw(fullRedrawNeeded); 2350 } finally { 2351 mIsDrawing = false; 2352 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2353 } 2354 2355 // For whatever reason we didn't create a HardwareRenderer, end any 2356 // hardware animations that are now dangling 2357 if (mAttachInfo.mPendingAnimatingRenderNodes != null) { 2358 final int count = mAttachInfo.mPendingAnimatingRenderNodes.size(); 2359 for (int i = 0; i < count; i++) { 2360 mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators(); 2361 } 2362 mAttachInfo.mPendingAnimatingRenderNodes.clear(); 2363 } 2364 2365 if (mReportNextDraw) { 2366 mReportNextDraw = false; 2367 if (mAttachInfo.mHardwareRenderer != null) { 2368 mAttachInfo.mHardwareRenderer.fence(); 2369 } 2370 2371 if (LOCAL_LOGV) { 2372 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2373 } 2374 if (mSurfaceHolder != null && mSurface.isValid()) { 2375 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2376 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2377 if (callbacks != null) { 2378 for (SurfaceHolder.Callback c : callbacks) { 2379 if (c instanceof SurfaceHolder.Callback2) { 2380 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2381 mSurfaceHolder); 2382 } 2383 } 2384 } 2385 } 2386 try { 2387 mWindowSession.finishDrawing(mWindow); 2388 } catch (RemoteException e) { 2389 } 2390 } 2391 } 2392 2393 private void draw(boolean fullRedrawNeeded) { 2394 Surface surface = mSurface; 2395 if (!surface.isValid()) { 2396 return; 2397 } 2398 2399 if (DEBUG_FPS) { 2400 trackFPS(); 2401 } 2402 2403 if (!sFirstDrawComplete) { 2404 synchronized (sFirstDrawHandlers) { 2405 sFirstDrawComplete = true; 2406 final int count = sFirstDrawHandlers.size(); 2407 for (int i = 0; i< count; i++) { 2408 mHandler.post(sFirstDrawHandlers.get(i)); 2409 } 2410 } 2411 } 2412 2413 scrollToRectOrFocus(null, false); 2414 2415 if (mAttachInfo.mViewScrollChanged) { 2416 mAttachInfo.mViewScrollChanged = false; 2417 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 2418 } 2419 2420 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2421 final int curScrollY; 2422 if (animating) { 2423 curScrollY = mScroller.getCurrY(); 2424 } else { 2425 curScrollY = mScrollY; 2426 } 2427 if (mCurScrollY != curScrollY) { 2428 mCurScrollY = curScrollY; 2429 fullRedrawNeeded = true; 2430 if (mView instanceof RootViewSurfaceTaker) { 2431 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 2432 } 2433 } 2434 2435 final float appScale = mAttachInfo.mApplicationScale; 2436 final boolean scalingRequired = mAttachInfo.mScalingRequired; 2437 2438 int resizeAlpha = 0; 2439 2440 final Rect dirty = mDirty; 2441 if (mSurfaceHolder != null) { 2442 // The app owns the surface, we won't draw. 2443 dirty.setEmpty(); 2444 if (animating && mScroller != null) { 2445 mScroller.abortAnimation(); 2446 } 2447 return; 2448 } 2449 2450 if (fullRedrawNeeded) { 2451 mAttachInfo.mIgnoreDirtyState = true; 2452 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2453 } 2454 2455 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2456 Log.v(TAG, "Draw " + mView + "/" 2457 + mWindowAttributes.getTitle() 2458 + ": dirty={" + dirty.left + "," + dirty.top 2459 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2460 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2461 appScale + ", width=" + mWidth + ", height=" + mHeight); 2462 } 2463 2464 mAttachInfo.mTreeObserver.dispatchOnDraw(); 2465 2466 int xOffset = 0; 2467 int yOffset = curScrollY; 2468 final WindowManager.LayoutParams params = mWindowAttributes; 2469 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 2470 if (surfaceInsets != null) { 2471 xOffset -= surfaceInsets.left; 2472 yOffset -= surfaceInsets.top; 2473 2474 // Offset dirty rect for surface insets. 2475 dirty.offset(surfaceInsets.left, surfaceInsets.right); 2476 } 2477 2478 boolean accessibilityFocusDirty = false; 2479 final Drawable drawable = mAttachInfo.mAccessibilityFocusDrawable; 2480 if (drawable != null) { 2481 final Rect bounds = mAttachInfo.mTmpInvalRect; 2482 final boolean hasFocus = getAccessibilityFocusedRect(bounds); 2483 if (!hasFocus) { 2484 bounds.setEmpty(); 2485 } 2486 if (!bounds.equals(drawable.getBounds())) { 2487 accessibilityFocusDirty = true; 2488 } 2489 } 2490 2491 mAttachInfo.mDrawingTime = 2492 mChoreographer.getFrameTimeNanos() / TimeUtils.NANOS_PER_MS; 2493 2494 if (!dirty.isEmpty() || mIsAnimating || accessibilityFocusDirty) { 2495 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 2496 // If accessibility focus moved, always invalidate the root. 2497 boolean invalidateRoot = accessibilityFocusDirty; 2498 2499 // Draw with hardware renderer. 2500 mIsAnimating = false; 2501 2502 if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) { 2503 mHardwareYOffset = yOffset; 2504 mHardwareXOffset = xOffset; 2505 invalidateRoot = true; 2506 } 2507 2508 if (invalidateRoot) { 2509 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2510 } 2511 2512 dirty.setEmpty(); 2513 2514 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this); 2515 } else { 2516 // If we get here with a disabled & requested hardware renderer, something went 2517 // wrong (an invalidate posted right before we destroyed the hardware surface 2518 // for instance) so we should just bail out. Locking the surface with software 2519 // rendering at this point would lock it forever and prevent hardware renderer 2520 // from doing its job when it comes back. 2521 // Before we request a new frame we must however attempt to reinitiliaze the 2522 // hardware renderer if it's in requested state. This would happen after an 2523 // eglTerminate() for instance. 2524 if (mAttachInfo.mHardwareRenderer != null && 2525 !mAttachInfo.mHardwareRenderer.isEnabled() && 2526 mAttachInfo.mHardwareRenderer.isRequested()) { 2527 2528 try { 2529 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2530 mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets); 2531 } catch (OutOfResourcesException e) { 2532 handleOutOfResourcesException(e); 2533 return; 2534 } 2535 2536 mFullRedrawNeeded = true; 2537 scheduleTraversals(); 2538 return; 2539 } 2540 2541 if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) { 2542 return; 2543 } 2544 } 2545 } 2546 2547 if (animating) { 2548 mFullRedrawNeeded = true; 2549 scheduleTraversals(); 2550 } 2551 } 2552 2553 /** 2554 * @return true if drawing was successful, false if an error occurred 2555 */ 2556 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff, 2557 boolean scalingRequired, Rect dirty) { 2558 2559 // Draw with software renderer. 2560 final Canvas canvas; 2561 try { 2562 final int left = dirty.left; 2563 final int top = dirty.top; 2564 final int right = dirty.right; 2565 final int bottom = dirty.bottom; 2566 2567 canvas = mSurface.lockCanvas(dirty); 2568 2569 // The dirty rectangle can be modified by Surface.lockCanvas() 2570 //noinspection ConstantConditions 2571 if (left != dirty.left || top != dirty.top || right != dirty.right 2572 || bottom != dirty.bottom) { 2573 attachInfo.mIgnoreDirtyState = true; 2574 } 2575 2576 // TODO: Do this in native 2577 canvas.setDensity(mDensity); 2578 } catch (Surface.OutOfResourcesException e) { 2579 handleOutOfResourcesException(e); 2580 return false; 2581 } catch (IllegalArgumentException e) { 2582 Log.e(TAG, "Could not lock surface", e); 2583 // Don't assume this is due to out of memory, it could be 2584 // something else, and if it is something else then we could 2585 // kill stuff (or ourself) for no reason. 2586 mLayoutRequested = true; // ask wm for a new surface next time. 2587 return false; 2588 } 2589 2590 try { 2591 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2592 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2593 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2594 //canvas.drawARGB(255, 255, 0, 0); 2595 } 2596 2597 // If this bitmap's format includes an alpha channel, we 2598 // need to clear it before drawing so that the child will 2599 // properly re-composite its drawing on a transparent 2600 // background. This automatically respects the clip/dirty region 2601 // or 2602 // If we are applying an offset, we need to clear the area 2603 // where the offset doesn't appear to avoid having garbage 2604 // left in the blank areas. 2605 if (!canvas.isOpaque() || yoff != 0 || xoff != 0) { 2606 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2607 } 2608 2609 dirty.setEmpty(); 2610 mIsAnimating = false; 2611 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2612 2613 if (DEBUG_DRAW) { 2614 Context cxt = mView.getContext(); 2615 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2616 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2617 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2618 } 2619 try { 2620 canvas.translate(-xoff, -yoff); 2621 if (mTranslator != null) { 2622 mTranslator.translateCanvas(canvas); 2623 } 2624 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2625 attachInfo.mSetIgnoreDirtyState = false; 2626 2627 mView.draw(canvas); 2628 2629 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2630 } finally { 2631 if (!attachInfo.mSetIgnoreDirtyState) { 2632 // Only clear the flag if it was not set during the mView.draw() call 2633 attachInfo.mIgnoreDirtyState = false; 2634 } 2635 } 2636 } finally { 2637 try { 2638 surface.unlockCanvasAndPost(canvas); 2639 } catch (IllegalArgumentException e) { 2640 Log.e(TAG, "Could not unlock surface", e); 2641 mLayoutRequested = true; // ask wm for a new surface next time. 2642 //noinspection ReturnInsideFinallyBlock 2643 return false; 2644 } 2645 2646 if (LOCAL_LOGV) { 2647 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2648 } 2649 } 2650 return true; 2651 } 2652 2653 /** 2654 * We want to draw a highlight around the current accessibility focused. 2655 * Since adding a style for all possible view is not a viable option we 2656 * have this specialized drawing method. 2657 * 2658 * Note: We are doing this here to be able to draw the highlight for 2659 * virtual views in addition to real ones. 2660 * 2661 * @param canvas The canvas on which to draw. 2662 */ 2663 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2664 final Rect bounds = mAttachInfo.mTmpInvalRect; 2665 if (getAccessibilityFocusedRect(bounds)) { 2666 final Drawable drawable = getAccessibilityFocusedDrawable(); 2667 if (drawable != null) { 2668 drawable.setBounds(bounds); 2669 drawable.draw(canvas); 2670 } 2671 } else if (mAttachInfo.mAccessibilityFocusDrawable != null) { 2672 mAttachInfo.mAccessibilityFocusDrawable.setBounds(0, 0, 0, 0); 2673 } 2674 } 2675 2676 private boolean getAccessibilityFocusedRect(Rect bounds) { 2677 final AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2678 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2679 return false; 2680 } 2681 2682 final View host = mAccessibilityFocusedHost; 2683 if (host == null || host.mAttachInfo == null) { 2684 return false; 2685 } 2686 2687 final AccessibilityNodeProvider provider = host.getAccessibilityNodeProvider(); 2688 if (provider == null) { 2689 host.getBoundsOnScreen(bounds, true); 2690 } else if (mAccessibilityFocusedVirtualView != null) { 2691 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2692 } else { 2693 return false; 2694 } 2695 2696 // Transform the rect into window-relative coordinates. 2697 final AttachInfo attachInfo = mAttachInfo; 2698 bounds.offset(0, attachInfo.mViewRootImpl.mScrollY); 2699 bounds.offset(-attachInfo.mWindowLeft, -attachInfo.mWindowTop); 2700 if (!bounds.intersect(0, 0, attachInfo.mViewRootImpl.mWidth, 2701 attachInfo.mViewRootImpl.mHeight)) { 2702 // If no intersection, set bounds to empty. 2703 bounds.setEmpty(); 2704 } 2705 return !bounds.isEmpty(); 2706 } 2707 2708 private Drawable getAccessibilityFocusedDrawable() { 2709 // Lazily load the accessibility focus drawable. 2710 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2711 final TypedValue value = new TypedValue(); 2712 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2713 R.attr.accessibilityFocusedDrawable, value, true); 2714 if (resolved) { 2715 mAttachInfo.mAccessibilityFocusDrawable = 2716 mView.mContext.getDrawable(value.resourceId); 2717 } 2718 } 2719 return mAttachInfo.mAccessibilityFocusDrawable; 2720 } 2721 2722 /** 2723 * @hide 2724 */ 2725 public void setDrawDuringWindowsAnimating(boolean value) { 2726 mDrawDuringWindowsAnimating = value; 2727 if (value) { 2728 handleDispatchWindowAnimationStopped(); 2729 } 2730 } 2731 2732 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2733 final Rect ci = mAttachInfo.mContentInsets; 2734 final Rect vi = mAttachInfo.mVisibleInsets; 2735 int scrollY = 0; 2736 boolean handled = false; 2737 2738 if (vi.left > ci.left || vi.top > ci.top 2739 || vi.right > ci.right || vi.bottom > ci.bottom) { 2740 // We'll assume that we aren't going to change the scroll 2741 // offset, since we want to avoid that unless it is actually 2742 // going to make the focus visible... otherwise we scroll 2743 // all over the place. 2744 scrollY = mScrollY; 2745 // We can be called for two different situations: during a draw, 2746 // to update the scroll position if the focus has changed (in which 2747 // case 'rectangle' is null), or in response to a 2748 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2749 // is non-null and we just want to scroll to whatever that 2750 // rectangle is). 2751 final View focus = mView.findFocus(); 2752 if (focus == null) { 2753 return false; 2754 } 2755 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2756 if (focus != lastScrolledFocus) { 2757 // If the focus has changed, then ignore any requests to scroll 2758 // to a rectangle; first we want to make sure the entire focus 2759 // view is visible. 2760 rectangle = null; 2761 } 2762 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2763 + " rectangle=" + rectangle + " ci=" + ci 2764 + " vi=" + vi); 2765 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2766 // Optimization: if the focus hasn't changed since last 2767 // time, and no layout has happened, then just leave things 2768 // as they are. 2769 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2770 + mScrollY + " vi=" + vi.toShortString()); 2771 } else { 2772 // We need to determine if the currently focused view is 2773 // within the visible part of the window and, if not, apply 2774 // a pan so it can be seen. 2775 mLastScrolledFocus = new WeakReference<View>(focus); 2776 mScrollMayChange = false; 2777 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2778 // Try to find the rectangle from the focus view. 2779 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2780 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2781 + mView.getWidth() + " h=" + mView.getHeight() 2782 + " ci=" + ci.toShortString() 2783 + " vi=" + vi.toShortString()); 2784 if (rectangle == null) { 2785 focus.getFocusedRect(mTempRect); 2786 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2787 + ": focusRect=" + mTempRect.toShortString()); 2788 if (mView instanceof ViewGroup) { 2789 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2790 focus, mTempRect); 2791 } 2792 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2793 "Focus in window: focusRect=" 2794 + mTempRect.toShortString() 2795 + " visRect=" + mVisRect.toShortString()); 2796 } else { 2797 mTempRect.set(rectangle); 2798 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2799 "Request scroll to rect: " 2800 + mTempRect.toShortString() 2801 + " visRect=" + mVisRect.toShortString()); 2802 } 2803 if (mTempRect.intersect(mVisRect)) { 2804 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2805 "Focus window visible rect: " 2806 + mTempRect.toShortString()); 2807 if (mTempRect.height() > 2808 (mView.getHeight()-vi.top-vi.bottom)) { 2809 // If the focus simply is not going to fit, then 2810 // best is probably just to leave things as-is. 2811 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2812 "Too tall; leaving scrollY=" + scrollY); 2813 } else if ((mTempRect.top-scrollY) < vi.top) { 2814 scrollY -= vi.top - (mTempRect.top-scrollY); 2815 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2816 "Top covered; scrollY=" + scrollY); 2817 } else if ((mTempRect.bottom-scrollY) 2818 > (mView.getHeight()-vi.bottom)) { 2819 scrollY += (mTempRect.bottom-scrollY) 2820 - (mView.getHeight()-vi.bottom); 2821 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2822 "Bottom covered; scrollY=" + scrollY); 2823 } 2824 handled = true; 2825 } 2826 } 2827 } 2828 } 2829 2830 if (scrollY != mScrollY) { 2831 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2832 + mScrollY + " , new=" + scrollY); 2833 if (!immediate) { 2834 if (mScroller == null) { 2835 mScroller = new Scroller(mView.getContext()); 2836 } 2837 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2838 } else if (mScroller != null) { 2839 mScroller.abortAnimation(); 2840 } 2841 mScrollY = scrollY; 2842 } 2843 2844 return handled; 2845 } 2846 2847 /** 2848 * @hide 2849 */ 2850 public View getAccessibilityFocusedHost() { 2851 return mAccessibilityFocusedHost; 2852 } 2853 2854 /** 2855 * @hide 2856 */ 2857 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2858 return mAccessibilityFocusedVirtualView; 2859 } 2860 2861 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2862 // If we have a virtual view with accessibility focus we need 2863 // to clear the focus and invalidate the virtual view bounds. 2864 if (mAccessibilityFocusedVirtualView != null) { 2865 2866 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2867 View focusHost = mAccessibilityFocusedHost; 2868 2869 // Wipe the state of the current accessibility focus since 2870 // the call into the provider to clear accessibility focus 2871 // will fire an accessibility event which will end up calling 2872 // this method and we want to have clean state when this 2873 // invocation happens. 2874 mAccessibilityFocusedHost = null; 2875 mAccessibilityFocusedVirtualView = null; 2876 2877 // Clear accessibility focus on the host after clearing state since 2878 // this method may be reentrant. 2879 focusHost.clearAccessibilityFocusNoCallbacks(); 2880 2881 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2882 if (provider != null) { 2883 // Invalidate the area of the cleared accessibility focus. 2884 focusNode.getBoundsInParent(mTempRect); 2885 focusHost.invalidate(mTempRect); 2886 // Clear accessibility focus in the virtual node. 2887 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2888 focusNode.getSourceNodeId()); 2889 provider.performAction(virtualNodeId, 2890 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2891 } 2892 focusNode.recycle(); 2893 } 2894 if (mAccessibilityFocusedHost != null) { 2895 // Clear accessibility focus in the view. 2896 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2897 } 2898 2899 // Set the new focus host and node. 2900 mAccessibilityFocusedHost = view; 2901 mAccessibilityFocusedVirtualView = node; 2902 2903 if (mAttachInfo.mHardwareRenderer != null) { 2904 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2905 } 2906 } 2907 2908 @Override 2909 public void requestChildFocus(View child, View focused) { 2910 if (DEBUG_INPUT_RESIZE) { 2911 Log.v(TAG, "Request child focus: focus now " + focused); 2912 } 2913 checkThread(); 2914 scheduleTraversals(); 2915 } 2916 2917 @Override 2918 public void clearChildFocus(View child) { 2919 if (DEBUG_INPUT_RESIZE) { 2920 Log.v(TAG, "Clearing child focus"); 2921 } 2922 checkThread(); 2923 scheduleTraversals(); 2924 } 2925 2926 @Override 2927 public ViewParent getParentForAccessibility() { 2928 return null; 2929 } 2930 2931 @Override 2932 public void focusableViewAvailable(View v) { 2933 checkThread(); 2934 if (mView != null) { 2935 if (!mView.hasFocus()) { 2936 v.requestFocus(); 2937 } else { 2938 // the one case where will transfer focus away from the current one 2939 // is if the current view is a view group that prefers to give focus 2940 // to its children first AND the view is a descendant of it. 2941 View focused = mView.findFocus(); 2942 if (focused instanceof ViewGroup) { 2943 ViewGroup group = (ViewGroup) focused; 2944 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2945 && isViewDescendantOf(v, focused)) { 2946 v.requestFocus(); 2947 } 2948 } 2949 } 2950 } 2951 } 2952 2953 @Override 2954 public void recomputeViewAttributes(View child) { 2955 checkThread(); 2956 if (mView == child) { 2957 mAttachInfo.mRecomputeGlobalAttributes = true; 2958 if (!mWillDrawSoon) { 2959 scheduleTraversals(); 2960 } 2961 } 2962 } 2963 2964 void dispatchDetachedFromWindow() { 2965 if (mView != null && mView.mAttachInfo != null) { 2966 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 2967 mView.dispatchDetachedFromWindow(); 2968 } 2969 2970 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2971 mAccessibilityManager.removeAccessibilityStateChangeListener( 2972 mAccessibilityInteractionConnectionManager); 2973 mAccessibilityManager.removeHighTextContrastStateChangeListener( 2974 mHighContrastTextManager); 2975 removeSendWindowContentChangedCallback(); 2976 2977 destroyHardwareRenderer(); 2978 2979 setAccessibilityFocus(null, null); 2980 2981 mView.assignParent(null); 2982 mView = null; 2983 mAttachInfo.mRootView = null; 2984 2985 mSurface.release(); 2986 2987 if (mInputQueueCallback != null && mInputQueue != null) { 2988 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2989 mInputQueue.dispose(); 2990 mInputQueueCallback = null; 2991 mInputQueue = null; 2992 } 2993 if (mInputEventReceiver != null) { 2994 mInputEventReceiver.dispose(); 2995 mInputEventReceiver = null; 2996 } 2997 try { 2998 mWindowSession.remove(mWindow); 2999 } catch (RemoteException e) { 3000 } 3001 3002 // Dispose the input channel after removing the window so the Window Manager 3003 // doesn't interpret the input channel being closed as an abnormal termination. 3004 if (mInputChannel != null) { 3005 mInputChannel.dispose(); 3006 mInputChannel = null; 3007 } 3008 3009 mDisplayManager.unregisterDisplayListener(mDisplayListener); 3010 3011 unscheduleTraversals(); 3012 } 3013 3014 void updateConfiguration(Configuration config, boolean force) { 3015 if (DEBUG_CONFIGURATION) Log.v(TAG, 3016 "Applying new config to window " 3017 + mWindowAttributes.getTitle() 3018 + ": " + config); 3019 3020 CompatibilityInfo ci = mDisplayAdjustments.getCompatibilityInfo(); 3021 if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) { 3022 config = new Configuration(config); 3023 ci.applyToConfiguration(mNoncompatDensity, config); 3024 } 3025 3026 synchronized (sConfigCallbacks) { 3027 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 3028 sConfigCallbacks.get(i).onConfigurationChanged(config); 3029 } 3030 } 3031 if (mView != null) { 3032 // At this point the resources have been updated to 3033 // have the most recent config, whatever that is. Use 3034 // the one in them which may be newer. 3035 config = mView.getResources().getConfiguration(); 3036 if (force || mLastConfiguration.diff(config) != 0) { 3037 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 3038 final int currentLayoutDirection = config.getLayoutDirection(); 3039 mLastConfiguration.setTo(config); 3040 if (lastLayoutDirection != currentLayoutDirection && 3041 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 3042 mView.setLayoutDirection(currentLayoutDirection); 3043 } 3044 mView.dispatchConfigurationChanged(config); 3045 } 3046 } 3047 } 3048 3049 /** 3050 * Return true if child is an ancestor of parent, (or equal to the parent). 3051 */ 3052 public static boolean isViewDescendantOf(View child, View parent) { 3053 if (child == parent) { 3054 return true; 3055 } 3056 3057 final ViewParent theParent = child.getParent(); 3058 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 3059 } 3060 3061 private final static int MSG_INVALIDATE = 1; 3062 private final static int MSG_INVALIDATE_RECT = 2; 3063 private final static int MSG_DIE = 3; 3064 private final static int MSG_RESIZED = 4; 3065 private final static int MSG_RESIZED_REPORT = 5; 3066 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 3067 private final static int MSG_DISPATCH_INPUT_EVENT = 7; 3068 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 3069 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 3070 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 3071 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 3072 private final static int MSG_CHECK_FOCUS = 13; 3073 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 3074 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 3075 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 3076 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 3077 private final static int MSG_UPDATE_CONFIGURATION = 18; 3078 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 3079 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 3080 private final static int MSG_INVALIDATE_WORLD = 22; 3081 private final static int MSG_WINDOW_MOVED = 23; 3082 private final static int MSG_SYNTHESIZE_INPUT_EVENT = 24; 3083 private final static int MSG_DISPATCH_WINDOW_SHOWN = 25; 3084 private final static int MSG_DISPATCH_WINDOW_ANIMATION_STOPPED = 26; 3085 private final static int MSG_DISPATCH_WINDOW_ANIMATION_STARTED = 27; 3086 3087 final class ViewRootHandler extends Handler { 3088 @Override 3089 public String getMessageName(Message message) { 3090 switch (message.what) { 3091 case MSG_INVALIDATE: 3092 return "MSG_INVALIDATE"; 3093 case MSG_INVALIDATE_RECT: 3094 return "MSG_INVALIDATE_RECT"; 3095 case MSG_DIE: 3096 return "MSG_DIE"; 3097 case MSG_RESIZED: 3098 return "MSG_RESIZED"; 3099 case MSG_RESIZED_REPORT: 3100 return "MSG_RESIZED_REPORT"; 3101 case MSG_WINDOW_FOCUS_CHANGED: 3102 return "MSG_WINDOW_FOCUS_CHANGED"; 3103 case MSG_DISPATCH_INPUT_EVENT: 3104 return "MSG_DISPATCH_INPUT_EVENT"; 3105 case MSG_DISPATCH_APP_VISIBILITY: 3106 return "MSG_DISPATCH_APP_VISIBILITY"; 3107 case MSG_DISPATCH_GET_NEW_SURFACE: 3108 return "MSG_DISPATCH_GET_NEW_SURFACE"; 3109 case MSG_DISPATCH_KEY_FROM_IME: 3110 return "MSG_DISPATCH_KEY_FROM_IME"; 3111 case MSG_FINISH_INPUT_CONNECTION: 3112 return "MSG_FINISH_INPUT_CONNECTION"; 3113 case MSG_CHECK_FOCUS: 3114 return "MSG_CHECK_FOCUS"; 3115 case MSG_CLOSE_SYSTEM_DIALOGS: 3116 return "MSG_CLOSE_SYSTEM_DIALOGS"; 3117 case MSG_DISPATCH_DRAG_EVENT: 3118 return "MSG_DISPATCH_DRAG_EVENT"; 3119 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 3120 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 3121 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 3122 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 3123 case MSG_UPDATE_CONFIGURATION: 3124 return "MSG_UPDATE_CONFIGURATION"; 3125 case MSG_PROCESS_INPUT_EVENTS: 3126 return "MSG_PROCESS_INPUT_EVENTS"; 3127 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3128 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3129 case MSG_DISPATCH_WINDOW_ANIMATION_STARTED: 3130 return "MSG_DISPATCH_WINDOW_ANIMATION_STARTED"; 3131 case MSG_DISPATCH_WINDOW_ANIMATION_STOPPED: 3132 return "MSG_DISPATCH_WINDOW_ANIMATION_STOPPED"; 3133 case MSG_WINDOW_MOVED: 3134 return "MSG_WINDOW_MOVED"; 3135 case MSG_SYNTHESIZE_INPUT_EVENT: 3136 return "MSG_SYNTHESIZE_INPUT_EVENT"; 3137 case MSG_DISPATCH_WINDOW_SHOWN: 3138 return "MSG_DISPATCH_WINDOW_SHOWN"; 3139 } 3140 return super.getMessageName(message); 3141 } 3142 3143 @Override 3144 public void handleMessage(Message msg) { 3145 switch (msg.what) { 3146 case MSG_INVALIDATE: 3147 ((View) msg.obj).invalidate(); 3148 break; 3149 case MSG_INVALIDATE_RECT: 3150 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3151 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3152 info.recycle(); 3153 break; 3154 case MSG_PROCESS_INPUT_EVENTS: 3155 mProcessInputEventsScheduled = false; 3156 doProcessInputEvents(); 3157 break; 3158 case MSG_DISPATCH_APP_VISIBILITY: 3159 handleAppVisibility(msg.arg1 != 0); 3160 break; 3161 case MSG_DISPATCH_GET_NEW_SURFACE: 3162 handleGetNewSurface(); 3163 break; 3164 case MSG_RESIZED: { 3165 // Recycled in the fall through... 3166 SomeArgs args = (SomeArgs) msg.obj; 3167 if (mWinFrame.equals(args.arg1) 3168 && mPendingOverscanInsets.equals(args.arg5) 3169 && mPendingContentInsets.equals(args.arg2) 3170 && mPendingStableInsets.equals(args.arg6) 3171 && mPendingVisibleInsets.equals(args.arg3) 3172 && mPendingOutsets.equals(args.arg7) 3173 && args.arg4 == null) { 3174 break; 3175 } 3176 } // fall through... 3177 case MSG_RESIZED_REPORT: 3178 if (mAdded) { 3179 SomeArgs args = (SomeArgs) msg.obj; 3180 3181 Configuration config = (Configuration) args.arg4; 3182 if (config != null) { 3183 updateConfiguration(config, false); 3184 } 3185 3186 mWinFrame.set((Rect) args.arg1); 3187 mPendingOverscanInsets.set((Rect) args.arg5); 3188 mPendingContentInsets.set((Rect) args.arg2); 3189 mPendingStableInsets.set((Rect) args.arg6); 3190 mPendingVisibleInsets.set((Rect) args.arg3); 3191 mPendingOutsets.set((Rect) args.arg7); 3192 3193 args.recycle(); 3194 3195 if (msg.what == MSG_RESIZED_REPORT) { 3196 mReportNextDraw = true; 3197 } 3198 3199 requestLayout(); 3200 } 3201 break; 3202 case MSG_WINDOW_MOVED: 3203 if (mAdded) { 3204 final int w = mWinFrame.width(); 3205 final int h = mWinFrame.height(); 3206 final int l = msg.arg1; 3207 final int t = msg.arg2; 3208 mWinFrame.left = l; 3209 mWinFrame.right = l + w; 3210 mWinFrame.top = t; 3211 mWinFrame.bottom = t + h; 3212 3213 requestLayout(); 3214 } 3215 break; 3216 case MSG_WINDOW_FOCUS_CHANGED: { 3217 if (mAdded) { 3218 boolean hasWindowFocus = msg.arg1 != 0; 3219 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3220 3221 profileRendering(hasWindowFocus); 3222 3223 if (hasWindowFocus) { 3224 boolean inTouchMode = msg.arg2 != 0; 3225 ensureTouchModeLocally(inTouchMode); 3226 3227 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3228 mFullRedrawNeeded = true; 3229 try { 3230 final WindowManager.LayoutParams lp = mWindowAttributes; 3231 final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null; 3232 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3233 mWidth, mHeight, mAttachInfo, mSurface, surfaceInsets); 3234 } catch (OutOfResourcesException e) { 3235 Log.e(TAG, "OutOfResourcesException locking surface", e); 3236 try { 3237 if (!mWindowSession.outOfMemory(mWindow)) { 3238 Slog.w(TAG, "No processes killed for memory; killing self"); 3239 Process.killProcess(Process.myPid()); 3240 } 3241 } catch (RemoteException ex) { 3242 } 3243 // Retry in a bit. 3244 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3245 return; 3246 } 3247 } 3248 } 3249 3250 mLastWasImTarget = WindowManager.LayoutParams 3251 .mayUseInputMethod(mWindowAttributes.flags); 3252 3253 InputMethodManager imm = InputMethodManager.peekInstance(); 3254 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3255 imm.onPreWindowFocus(mView, hasWindowFocus); 3256 } 3257 if (mView != null) { 3258 mAttachInfo.mKeyDispatchState.reset(); 3259 mView.dispatchWindowFocusChanged(hasWindowFocus); 3260 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3261 } 3262 3263 // Note: must be done after the focus change callbacks, 3264 // so all of the view state is set up correctly. 3265 if (hasWindowFocus) { 3266 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3267 imm.onPostWindowFocus(mView, mView.findFocus(), 3268 mWindowAttributes.softInputMode, 3269 !mHasHadWindowFocus, mWindowAttributes.flags); 3270 } 3271 // Clear the forward bit. We can just do this directly, since 3272 // the window manager doesn't care about it. 3273 mWindowAttributes.softInputMode &= 3274 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3275 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3276 .softInputMode &= 3277 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3278 mHasHadWindowFocus = true; 3279 } 3280 3281 if (mView != null && mAccessibilityManager.isEnabled()) { 3282 if (hasWindowFocus) { 3283 mView.sendAccessibilityEvent( 3284 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3285 } 3286 } 3287 } 3288 } break; 3289 case MSG_DIE: 3290 doDie(); 3291 break; 3292 case MSG_DISPATCH_INPUT_EVENT: { 3293 SomeArgs args = (SomeArgs)msg.obj; 3294 InputEvent event = (InputEvent)args.arg1; 3295 InputEventReceiver receiver = (InputEventReceiver)args.arg2; 3296 enqueueInputEvent(event, receiver, 0, true); 3297 args.recycle(); 3298 } break; 3299 case MSG_SYNTHESIZE_INPUT_EVENT: { 3300 InputEvent event = (InputEvent)msg.obj; 3301 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true); 3302 } break; 3303 case MSG_DISPATCH_KEY_FROM_IME: { 3304 if (LOCAL_LOGV) Log.v( 3305 TAG, "Dispatching key " 3306 + msg.obj + " from IME to " + mView); 3307 KeyEvent event = (KeyEvent)msg.obj; 3308 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3309 // The IME is trying to say this event is from the 3310 // system! Bad bad bad! 3311 //noinspection UnusedAssignment 3312 event = KeyEvent.changeFlags(event, event.getFlags() & 3313 ~KeyEvent.FLAG_FROM_SYSTEM); 3314 } 3315 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3316 } break; 3317 case MSG_FINISH_INPUT_CONNECTION: { 3318 InputMethodManager imm = InputMethodManager.peekInstance(); 3319 if (imm != null) { 3320 imm.reportFinishInputConnection((InputConnection)msg.obj); 3321 } 3322 } break; 3323 case MSG_CHECK_FOCUS: { 3324 InputMethodManager imm = InputMethodManager.peekInstance(); 3325 if (imm != null) { 3326 imm.checkFocus(); 3327 } 3328 } break; 3329 case MSG_CLOSE_SYSTEM_DIALOGS: { 3330 if (mView != null) { 3331 mView.onCloseSystemDialogs((String)msg.obj); 3332 } 3333 } break; 3334 case MSG_DISPATCH_DRAG_EVENT: 3335 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3336 DragEvent event = (DragEvent)msg.obj; 3337 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3338 handleDragEvent(event); 3339 } break; 3340 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3341 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3342 } break; 3343 case MSG_UPDATE_CONFIGURATION: { 3344 Configuration config = (Configuration)msg.obj; 3345 if (config.isOtherSeqNewer(mLastConfiguration)) { 3346 config = mLastConfiguration; 3347 } 3348 updateConfiguration(config, false); 3349 } break; 3350 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3351 setAccessibilityFocus(null, null); 3352 } break; 3353 case MSG_DISPATCH_WINDOW_ANIMATION_STARTED: { 3354 int remainingFrameCount = msg.arg1; 3355 handleDispatchWindowAnimationStarted(remainingFrameCount); 3356 } break; 3357 case MSG_DISPATCH_WINDOW_ANIMATION_STOPPED: { 3358 handleDispatchWindowAnimationStopped(); 3359 } break; 3360 case MSG_INVALIDATE_WORLD: { 3361 if (mView != null) { 3362 invalidateWorld(mView); 3363 } 3364 } break; 3365 case MSG_DISPATCH_WINDOW_SHOWN: { 3366 handleDispatchWindowShown(); 3367 } 3368 } 3369 } 3370 } 3371 3372 final ViewRootHandler mHandler = new ViewRootHandler(); 3373 3374 /** 3375 * Something in the current window tells us we need to change the touch mode. For 3376 * example, we are not in touch mode, and the user touches the screen. 3377 * 3378 * If the touch mode has changed, tell the window manager, and handle it locally. 3379 * 3380 * @param inTouchMode Whether we want to be in touch mode. 3381 * @return True if the touch mode changed and focus changed was changed as a result 3382 */ 3383 boolean ensureTouchMode(boolean inTouchMode) { 3384 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3385 + "touch mode is " + mAttachInfo.mInTouchMode); 3386 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3387 3388 // tell the window manager 3389 try { 3390 if (!isInLocalFocusMode()) { 3391 mWindowSession.setInTouchMode(inTouchMode); 3392 } 3393 } catch (RemoteException e) { 3394 throw new RuntimeException(e); 3395 } 3396 3397 // handle the change 3398 return ensureTouchModeLocally(inTouchMode); 3399 } 3400 3401 /** 3402 * Ensure that the touch mode for this window is set, and if it is changing, 3403 * take the appropriate action. 3404 * @param inTouchMode Whether we want to be in touch mode. 3405 * @return True if the touch mode changed and focus changed was changed as a result 3406 */ 3407 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3408 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3409 + "touch mode is " + mAttachInfo.mInTouchMode); 3410 3411 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3412 3413 mAttachInfo.mInTouchMode = inTouchMode; 3414 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3415 3416 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3417 } 3418 3419 private boolean enterTouchMode() { 3420 if (mView != null && mView.hasFocus()) { 3421 // note: not relying on mFocusedView here because this could 3422 // be when the window is first being added, and mFocused isn't 3423 // set yet. 3424 final View focused = mView.findFocus(); 3425 if (focused != null && !focused.isFocusableInTouchMode()) { 3426 final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused); 3427 if (ancestorToTakeFocus != null) { 3428 // there is an ancestor that wants focus after its 3429 // descendants that is focusable in touch mode.. give it 3430 // focus 3431 return ancestorToTakeFocus.requestFocus(); 3432 } else { 3433 // There's nothing to focus. Clear and propagate through the 3434 // hierarchy, but don't attempt to place new focus. 3435 focused.clearFocusInternal(null, true, false); 3436 return true; 3437 } 3438 } 3439 } 3440 return false; 3441 } 3442 3443 /** 3444 * Find an ancestor of focused that wants focus after its descendants and is 3445 * focusable in touch mode. 3446 * @param focused The currently focused view. 3447 * @return An appropriate view, or null if no such view exists. 3448 */ 3449 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3450 ViewParent parent = focused.getParent(); 3451 while (parent instanceof ViewGroup) { 3452 final ViewGroup vgParent = (ViewGroup) parent; 3453 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3454 && vgParent.isFocusableInTouchMode()) { 3455 return vgParent; 3456 } 3457 if (vgParent.isRootNamespace()) { 3458 return null; 3459 } else { 3460 parent = vgParent.getParent(); 3461 } 3462 } 3463 return null; 3464 } 3465 3466 private boolean leaveTouchMode() { 3467 if (mView != null) { 3468 if (mView.hasFocus()) { 3469 View focusedView = mView.findFocus(); 3470 if (!(focusedView instanceof ViewGroup)) { 3471 // some view has focus, let it keep it 3472 return false; 3473 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3474 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3475 // some view group has focus, and doesn't prefer its children 3476 // over itself for focus, so let them keep it. 3477 return false; 3478 } 3479 } 3480 3481 // find the best view to give focus to in this brave new non-touch-mode 3482 // world 3483 final View focused = focusSearch(null, View.FOCUS_DOWN); 3484 if (focused != null) { 3485 return focused.requestFocus(View.FOCUS_DOWN); 3486 } 3487 } 3488 return false; 3489 } 3490 3491 /** 3492 * Base class for implementing a stage in the chain of responsibility 3493 * for processing input events. 3494 * <p> 3495 * Events are delivered to the stage by the {@link #deliver} method. The stage 3496 * then has the choice of finishing the event or forwarding it to the next stage. 3497 * </p> 3498 */ 3499 abstract class InputStage { 3500 private final InputStage mNext; 3501 3502 protected static final int FORWARD = 0; 3503 protected static final int FINISH_HANDLED = 1; 3504 protected static final int FINISH_NOT_HANDLED = 2; 3505 3506 /** 3507 * Creates an input stage. 3508 * @param next The next stage to which events should be forwarded. 3509 */ 3510 public InputStage(InputStage next) { 3511 mNext = next; 3512 } 3513 3514 /** 3515 * Delivers an event to be processed. 3516 */ 3517 public final void deliver(QueuedInputEvent q) { 3518 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3519 forward(q); 3520 } else if (shouldDropInputEvent(q)) { 3521 finish(q, false); 3522 } else { 3523 apply(q, onProcess(q)); 3524 } 3525 } 3526 3527 /** 3528 * Marks the the input event as finished then forwards it to the next stage. 3529 */ 3530 protected void finish(QueuedInputEvent q, boolean handled) { 3531 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3532 if (handled) { 3533 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3534 } 3535 forward(q); 3536 } 3537 3538 /** 3539 * Forwards the event to the next stage. 3540 */ 3541 protected void forward(QueuedInputEvent q) { 3542 onDeliverToNext(q); 3543 } 3544 3545 /** 3546 * Applies a result code from {@link #onProcess} to the specified event. 3547 */ 3548 protected void apply(QueuedInputEvent q, int result) { 3549 if (result == FORWARD) { 3550 forward(q); 3551 } else if (result == FINISH_HANDLED) { 3552 finish(q, true); 3553 } else if (result == FINISH_NOT_HANDLED) { 3554 finish(q, false); 3555 } else { 3556 throw new IllegalArgumentException("Invalid result: " + result); 3557 } 3558 } 3559 3560 /** 3561 * Called when an event is ready to be processed. 3562 * @return A result code indicating how the event was handled. 3563 */ 3564 protected int onProcess(QueuedInputEvent q) { 3565 return FORWARD; 3566 } 3567 3568 /** 3569 * Called when an event is being delivered to the next stage. 3570 */ 3571 protected void onDeliverToNext(QueuedInputEvent q) { 3572 if (DEBUG_INPUT_STAGES) { 3573 Log.v(TAG, "Done with " + getClass().getSimpleName() + ". " + q); 3574 } 3575 if (mNext != null) { 3576 mNext.deliver(q); 3577 } else { 3578 finishInputEvent(q); 3579 } 3580 } 3581 3582 protected boolean shouldDropInputEvent(QueuedInputEvent q) { 3583 if (mView == null || !mAdded) { 3584 Slog.w(TAG, "Dropping event due to root view being removed: " + q.mEvent); 3585 return true; 3586 } else if ((!mAttachInfo.mHasWindowFocus 3587 && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) || mStopped 3588 || (mPausedForTransition && !isBack(q.mEvent))) { 3589 // This is a focus event and the window doesn't currently have input focus or 3590 // has stopped. This could be an event that came back from the previous stage 3591 // but the window has lost focus or stopped in the meantime. 3592 if (isTerminalInputEvent(q.mEvent)) { 3593 // Don't drop terminal input events, however mark them as canceled. 3594 q.mEvent.cancel(); 3595 Slog.w(TAG, "Cancelling event due to no window focus: " + q.mEvent); 3596 return false; 3597 } 3598 3599 // Drop non-terminal input events. 3600 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 3601 return true; 3602 } 3603 return false; 3604 } 3605 3606 void dump(String prefix, PrintWriter writer) { 3607 if (mNext != null) { 3608 mNext.dump(prefix, writer); 3609 } 3610 } 3611 3612 private boolean isBack(InputEvent event) { 3613 if (event instanceof KeyEvent) { 3614 return ((KeyEvent) event).getKeyCode() == KeyEvent.KEYCODE_BACK; 3615 } else { 3616 return false; 3617 } 3618 } 3619 } 3620 3621 /** 3622 * Base class for implementing an input pipeline stage that supports 3623 * asynchronous and out-of-order processing of input events. 3624 * <p> 3625 * In addition to what a normal input stage can do, an asynchronous 3626 * input stage may also defer an input event that has been delivered to it 3627 * and finish or forward it later. 3628 * </p> 3629 */ 3630 abstract class AsyncInputStage extends InputStage { 3631 private final String mTraceCounter; 3632 3633 private QueuedInputEvent mQueueHead; 3634 private QueuedInputEvent mQueueTail; 3635 private int mQueueLength; 3636 3637 protected static final int DEFER = 3; 3638 3639 /** 3640 * Creates an asynchronous input stage. 3641 * @param next The next stage to which events should be forwarded. 3642 * @param traceCounter The name of a counter to record the size of 3643 * the queue of pending events. 3644 */ 3645 public AsyncInputStage(InputStage next, String traceCounter) { 3646 super(next); 3647 mTraceCounter = traceCounter; 3648 } 3649 3650 /** 3651 * Marks the event as deferred, which is to say that it will be handled 3652 * asynchronously. The caller is responsible for calling {@link #forward} 3653 * or {@link #finish} later when it is done handling the event. 3654 */ 3655 protected void defer(QueuedInputEvent q) { 3656 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3657 enqueue(q); 3658 } 3659 3660 @Override 3661 protected void forward(QueuedInputEvent q) { 3662 // Clear the deferred flag. 3663 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3664 3665 // Fast path if the queue is empty. 3666 QueuedInputEvent curr = mQueueHead; 3667 if (curr == null) { 3668 super.forward(q); 3669 return; 3670 } 3671 3672 // Determine whether the event must be serialized behind any others 3673 // before it can be delivered to the next stage. This is done because 3674 // deferred events might be handled out of order by the stage. 3675 final int deviceId = q.mEvent.getDeviceId(); 3676 QueuedInputEvent prev = null; 3677 boolean blocked = false; 3678 while (curr != null && curr != q) { 3679 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 3680 blocked = true; 3681 } 3682 prev = curr; 3683 curr = curr.mNext; 3684 } 3685 3686 // If the event is blocked, then leave it in the queue to be delivered later. 3687 // Note that the event might not yet be in the queue if it was not previously 3688 // deferred so we will enqueue it if needed. 3689 if (blocked) { 3690 if (curr == null) { 3691 enqueue(q); 3692 } 3693 return; 3694 } 3695 3696 // The event is not blocked. Deliver it immediately. 3697 if (curr != null) { 3698 curr = curr.mNext; 3699 dequeue(q, prev); 3700 } 3701 super.forward(q); 3702 3703 // Dequeuing this event may have unblocked successors. Deliver them. 3704 while (curr != null) { 3705 if (deviceId == curr.mEvent.getDeviceId()) { 3706 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 3707 break; 3708 } 3709 QueuedInputEvent next = curr.mNext; 3710 dequeue(curr, prev); 3711 super.forward(curr); 3712 curr = next; 3713 } else { 3714 prev = curr; 3715 curr = curr.mNext; 3716 } 3717 } 3718 } 3719 3720 @Override 3721 protected void apply(QueuedInputEvent q, int result) { 3722 if (result == DEFER) { 3723 defer(q); 3724 } else { 3725 super.apply(q, result); 3726 } 3727 } 3728 3729 private void enqueue(QueuedInputEvent q) { 3730 if (mQueueTail == null) { 3731 mQueueHead = q; 3732 mQueueTail = q; 3733 } else { 3734 mQueueTail.mNext = q; 3735 mQueueTail = q; 3736 } 3737 3738 mQueueLength += 1; 3739 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3740 } 3741 3742 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 3743 if (prev == null) { 3744 mQueueHead = q.mNext; 3745 } else { 3746 prev.mNext = q.mNext; 3747 } 3748 if (mQueueTail == q) { 3749 mQueueTail = prev; 3750 } 3751 q.mNext = null; 3752 3753 mQueueLength -= 1; 3754 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3755 } 3756 3757 @Override 3758 void dump(String prefix, PrintWriter writer) { 3759 writer.print(prefix); 3760 writer.print(getClass().getName()); 3761 writer.print(": mQueueLength="); 3762 writer.println(mQueueLength); 3763 3764 super.dump(prefix, writer); 3765 } 3766 } 3767 3768 /** 3769 * Delivers pre-ime input events to a native activity. 3770 * Does not support pointer events. 3771 */ 3772 final class NativePreImeInputStage extends AsyncInputStage 3773 implements InputQueue.FinishedInputEventCallback { 3774 public NativePreImeInputStage(InputStage next, String traceCounter) { 3775 super(next, traceCounter); 3776 } 3777 3778 @Override 3779 protected int onProcess(QueuedInputEvent q) { 3780 if (mInputQueue != null && q.mEvent instanceof KeyEvent) { 3781 mInputQueue.sendInputEvent(q.mEvent, q, true, this); 3782 return DEFER; 3783 } 3784 return FORWARD; 3785 } 3786 3787 @Override 3788 public void onFinishedInputEvent(Object token, boolean handled) { 3789 QueuedInputEvent q = (QueuedInputEvent)token; 3790 if (handled) { 3791 finish(q, true); 3792 return; 3793 } 3794 forward(q); 3795 } 3796 } 3797 3798 /** 3799 * Delivers pre-ime input events to the view hierarchy. 3800 * Does not support pointer events. 3801 */ 3802 final class ViewPreImeInputStage extends InputStage { 3803 public ViewPreImeInputStage(InputStage next) { 3804 super(next); 3805 } 3806 3807 @Override 3808 protected int onProcess(QueuedInputEvent q) { 3809 if (q.mEvent instanceof KeyEvent) { 3810 return processKeyEvent(q); 3811 } 3812 return FORWARD; 3813 } 3814 3815 private int processKeyEvent(QueuedInputEvent q) { 3816 final KeyEvent event = (KeyEvent)q.mEvent; 3817 if (mView.dispatchKeyEventPreIme(event)) { 3818 return FINISH_HANDLED; 3819 } 3820 return FORWARD; 3821 } 3822 } 3823 3824 /** 3825 * Delivers input events to the ime. 3826 * Does not support pointer events. 3827 */ 3828 final class ImeInputStage extends AsyncInputStage 3829 implements InputMethodManager.FinishedInputEventCallback { 3830 public ImeInputStage(InputStage next, String traceCounter) { 3831 super(next, traceCounter); 3832 } 3833 3834 @Override 3835 protected int onProcess(QueuedInputEvent q) { 3836 if (mLastWasImTarget && !isInLocalFocusMode()) { 3837 InputMethodManager imm = InputMethodManager.peekInstance(); 3838 if (imm != null) { 3839 final InputEvent event = q.mEvent; 3840 if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event); 3841 int result = imm.dispatchInputEvent(event, q, this, mHandler); 3842 if (result == InputMethodManager.DISPATCH_HANDLED) { 3843 return FINISH_HANDLED; 3844 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 3845 // The IME could not handle it, so skip along to the next InputStage 3846 return FORWARD; 3847 } else { 3848 return DEFER; // callback will be invoked later 3849 } 3850 } 3851 } 3852 return FORWARD; 3853 } 3854 3855 @Override 3856 public void onFinishedInputEvent(Object token, boolean handled) { 3857 QueuedInputEvent q = (QueuedInputEvent)token; 3858 if (handled) { 3859 finish(q, true); 3860 return; 3861 } 3862 forward(q); 3863 } 3864 } 3865 3866 /** 3867 * Performs early processing of post-ime input events. 3868 */ 3869 final class EarlyPostImeInputStage extends InputStage { 3870 public EarlyPostImeInputStage(InputStage next) { 3871 super(next); 3872 } 3873 3874 @Override 3875 protected int onProcess(QueuedInputEvent q) { 3876 if (q.mEvent instanceof KeyEvent) { 3877 return processKeyEvent(q); 3878 } else { 3879 final int source = q.mEvent.getSource(); 3880 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3881 return processPointerEvent(q); 3882 } 3883 } 3884 return FORWARD; 3885 } 3886 3887 private int processKeyEvent(QueuedInputEvent q) { 3888 final KeyEvent event = (KeyEvent)q.mEvent; 3889 3890 // If the key's purpose is to exit touch mode then we consume it 3891 // and consider it handled. 3892 if (checkForLeavingTouchModeAndConsume(event)) { 3893 return FINISH_HANDLED; 3894 } 3895 3896 // Make sure the fallback event policy sees all keys that will be 3897 // delivered to the view hierarchy. 3898 mFallbackEventHandler.preDispatchKeyEvent(event); 3899 return FORWARD; 3900 } 3901 3902 private int processPointerEvent(QueuedInputEvent q) { 3903 final MotionEvent event = (MotionEvent)q.mEvent; 3904 3905 // Translate the pointer event for compatibility, if needed. 3906 if (mTranslator != null) { 3907 mTranslator.translateEventInScreenToAppWindow(event); 3908 } 3909 3910 // Enter touch mode on down or scroll. 3911 final int action = event.getAction(); 3912 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3913 ensureTouchMode(true); 3914 } 3915 3916 // Offset the scroll position. 3917 if (mCurScrollY != 0) { 3918 event.offsetLocation(0, mCurScrollY); 3919 } 3920 3921 // Remember the touch position for possible drag-initiation. 3922 if (event.isTouchEvent()) { 3923 mLastTouchPoint.x = event.getRawX(); 3924 mLastTouchPoint.y = event.getRawY(); 3925 } 3926 return FORWARD; 3927 } 3928 } 3929 3930 /** 3931 * Delivers post-ime input events to a native activity. 3932 */ 3933 final class NativePostImeInputStage extends AsyncInputStage 3934 implements InputQueue.FinishedInputEventCallback { 3935 public NativePostImeInputStage(InputStage next, String traceCounter) { 3936 super(next, traceCounter); 3937 } 3938 3939 @Override 3940 protected int onProcess(QueuedInputEvent q) { 3941 if (mInputQueue != null) { 3942 mInputQueue.sendInputEvent(q.mEvent, q, false, this); 3943 return DEFER; 3944 } 3945 return FORWARD; 3946 } 3947 3948 @Override 3949 public void onFinishedInputEvent(Object token, boolean handled) { 3950 QueuedInputEvent q = (QueuedInputEvent)token; 3951 if (handled) { 3952 finish(q, true); 3953 return; 3954 } 3955 forward(q); 3956 } 3957 } 3958 3959 /** 3960 * Delivers post-ime input events to the view hierarchy. 3961 */ 3962 final class ViewPostImeInputStage extends InputStage { 3963 public ViewPostImeInputStage(InputStage next) { 3964 super(next); 3965 } 3966 3967 @Override 3968 protected int onProcess(QueuedInputEvent q) { 3969 if (q.mEvent instanceof KeyEvent) { 3970 return processKeyEvent(q); 3971 } else { 3972 // If delivering a new non-key event, make sure the window is 3973 // now allowed to start updating. 3974 handleDispatchWindowAnimationStopped(); 3975 final int source = q.mEvent.getSource(); 3976 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3977 return processPointerEvent(q); 3978 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3979 return processTrackballEvent(q); 3980 } else { 3981 return processGenericMotionEvent(q); 3982 } 3983 } 3984 } 3985 3986 @Override 3987 protected void onDeliverToNext(QueuedInputEvent q) { 3988 if (mUnbufferedInputDispatch 3989 && q.mEvent instanceof MotionEvent 3990 && ((MotionEvent)q.mEvent).isTouchEvent() 3991 && isTerminalInputEvent(q.mEvent)) { 3992 mUnbufferedInputDispatch = false; 3993 scheduleConsumeBatchedInput(); 3994 } 3995 super.onDeliverToNext(q); 3996 } 3997 3998 private int processKeyEvent(QueuedInputEvent q) { 3999 final KeyEvent event = (KeyEvent)q.mEvent; 4000 4001 if (event.getAction() != KeyEvent.ACTION_UP) { 4002 // If delivering a new key event, make sure the window is 4003 // now allowed to start updating. 4004 handleDispatchWindowAnimationStopped(); 4005 } 4006 4007 // Deliver the key to the view hierarchy. 4008 if (mView.dispatchKeyEvent(event)) { 4009 return FINISH_HANDLED; 4010 } 4011 4012 if (shouldDropInputEvent(q)) { 4013 return FINISH_NOT_HANDLED; 4014 } 4015 4016 // If the Control modifier is held, try to interpret the key as a shortcut. 4017 if (event.getAction() == KeyEvent.ACTION_DOWN 4018 && event.isCtrlPressed() 4019 && event.getRepeatCount() == 0 4020 && !KeyEvent.isModifierKey(event.getKeyCode())) { 4021 if (mView.dispatchKeyShortcutEvent(event)) { 4022 return FINISH_HANDLED; 4023 } 4024 if (shouldDropInputEvent(q)) { 4025 return FINISH_NOT_HANDLED; 4026 } 4027 } 4028 4029 // Apply the fallback event policy. 4030 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 4031 return FINISH_HANDLED; 4032 } 4033 if (shouldDropInputEvent(q)) { 4034 return FINISH_NOT_HANDLED; 4035 } 4036 4037 // Handle automatic focus changes. 4038 if (event.getAction() == KeyEvent.ACTION_DOWN) { 4039 int direction = 0; 4040 switch (event.getKeyCode()) { 4041 case KeyEvent.KEYCODE_DPAD_LEFT: 4042 if (event.hasNoModifiers()) { 4043 direction = View.FOCUS_LEFT; 4044 } 4045 break; 4046 case KeyEvent.KEYCODE_DPAD_RIGHT: 4047 if (event.hasNoModifiers()) { 4048 direction = View.FOCUS_RIGHT; 4049 } 4050 break; 4051 case KeyEvent.KEYCODE_DPAD_UP: 4052 if (event.hasNoModifiers()) { 4053 direction = View.FOCUS_UP; 4054 } 4055 break; 4056 case KeyEvent.KEYCODE_DPAD_DOWN: 4057 if (event.hasNoModifiers()) { 4058 direction = View.FOCUS_DOWN; 4059 } 4060 break; 4061 case KeyEvent.KEYCODE_TAB: 4062 if (event.hasNoModifiers()) { 4063 direction = View.FOCUS_FORWARD; 4064 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4065 direction = View.FOCUS_BACKWARD; 4066 } 4067 break; 4068 } 4069 if (direction != 0) { 4070 View focused = mView.findFocus(); 4071 if (focused != null) { 4072 View v = focused.focusSearch(direction); 4073 if (v != null && v != focused) { 4074 // do the math the get the interesting rect 4075 // of previous focused into the coord system of 4076 // newly focused view 4077 focused.getFocusedRect(mTempRect); 4078 if (mView instanceof ViewGroup) { 4079 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 4080 focused, mTempRect); 4081 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 4082 v, mTempRect); 4083 } 4084 if (v.requestFocus(direction, mTempRect)) { 4085 playSoundEffect(SoundEffectConstants 4086 .getContantForFocusDirection(direction)); 4087 return FINISH_HANDLED; 4088 } 4089 } 4090 4091 // Give the focused view a last chance to handle the dpad key. 4092 if (mView.dispatchUnhandledMove(focused, direction)) { 4093 return FINISH_HANDLED; 4094 } 4095 } else { 4096 // find the best view to give focus to in this non-touch-mode with no-focus 4097 View v = focusSearch(null, direction); 4098 if (v != null && v.requestFocus(direction)) { 4099 return FINISH_HANDLED; 4100 } 4101 } 4102 } 4103 } 4104 return FORWARD; 4105 } 4106 4107 private int processPointerEvent(QueuedInputEvent q) { 4108 final MotionEvent event = (MotionEvent)q.mEvent; 4109 4110 mAttachInfo.mUnbufferedDispatchRequested = false; 4111 boolean handled = mView.dispatchPointerEvent(event); 4112 if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) { 4113 mUnbufferedInputDispatch = true; 4114 if (mConsumeBatchedInputScheduled) { 4115 scheduleConsumeBatchedInputImmediately(); 4116 } 4117 } 4118 return handled ? FINISH_HANDLED : FORWARD; 4119 } 4120 4121 private int processTrackballEvent(QueuedInputEvent q) { 4122 final MotionEvent event = (MotionEvent)q.mEvent; 4123 4124 if (mView.dispatchTrackballEvent(event)) { 4125 return FINISH_HANDLED; 4126 } 4127 return FORWARD; 4128 } 4129 4130 private int processGenericMotionEvent(QueuedInputEvent q) { 4131 final MotionEvent event = (MotionEvent)q.mEvent; 4132 4133 // Deliver the event to the view. 4134 if (mView.dispatchGenericMotionEvent(event)) { 4135 return FINISH_HANDLED; 4136 } 4137 return FORWARD; 4138 } 4139 } 4140 4141 /** 4142 * Performs synthesis of new input events from unhandled input events. 4143 */ 4144 final class SyntheticInputStage extends InputStage { 4145 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 4146 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 4147 private final SyntheticTouchNavigationHandler mTouchNavigation = 4148 new SyntheticTouchNavigationHandler(); 4149 private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler(); 4150 4151 public SyntheticInputStage() { 4152 super(null); 4153 } 4154 4155 @Override 4156 protected int onProcess(QueuedInputEvent q) { 4157 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 4158 if (q.mEvent instanceof MotionEvent) { 4159 final MotionEvent event = (MotionEvent)q.mEvent; 4160 final int source = event.getSource(); 4161 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4162 mTrackball.process(event); 4163 return FINISH_HANDLED; 4164 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4165 mJoystick.process(event); 4166 return FINISH_HANDLED; 4167 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4168 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4169 mTouchNavigation.process(event); 4170 return FINISH_HANDLED; 4171 } 4172 } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) { 4173 mKeyboard.process((KeyEvent)q.mEvent); 4174 return FINISH_HANDLED; 4175 } 4176 4177 return FORWARD; 4178 } 4179 4180 @Override 4181 protected void onDeliverToNext(QueuedInputEvent q) { 4182 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 4183 // Cancel related synthetic events if any prior stage has handled the event. 4184 if (q.mEvent instanceof MotionEvent) { 4185 final MotionEvent event = (MotionEvent)q.mEvent; 4186 final int source = event.getSource(); 4187 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4188 mTrackball.cancel(event); 4189 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4190 mJoystick.cancel(event); 4191 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4192 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4193 mTouchNavigation.cancel(event); 4194 } 4195 } 4196 } 4197 super.onDeliverToNext(q); 4198 } 4199 } 4200 4201 /** 4202 * Creates dpad events from unhandled trackball movements. 4203 */ 4204 final class SyntheticTrackballHandler { 4205 private final TrackballAxis mX = new TrackballAxis(); 4206 private final TrackballAxis mY = new TrackballAxis(); 4207 private long mLastTime; 4208 4209 public void process(MotionEvent event) { 4210 // Translate the trackball event into DPAD keys and try to deliver those. 4211 long curTime = SystemClock.uptimeMillis(); 4212 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 4213 // It has been too long since the last movement, 4214 // so restart at the beginning. 4215 mX.reset(0); 4216 mY.reset(0); 4217 mLastTime = curTime; 4218 } 4219 4220 final int action = event.getAction(); 4221 final int metaState = event.getMetaState(); 4222 switch (action) { 4223 case MotionEvent.ACTION_DOWN: 4224 mX.reset(2); 4225 mY.reset(2); 4226 enqueueInputEvent(new KeyEvent(curTime, curTime, 4227 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4228 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4229 InputDevice.SOURCE_KEYBOARD)); 4230 break; 4231 case MotionEvent.ACTION_UP: 4232 mX.reset(2); 4233 mY.reset(2); 4234 enqueueInputEvent(new KeyEvent(curTime, curTime, 4235 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4236 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4237 InputDevice.SOURCE_KEYBOARD)); 4238 break; 4239 } 4240 4241 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step=" 4242 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 4243 + " move=" + event.getX() 4244 + " / Y=" + mY.position + " step=" 4245 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 4246 + " move=" + event.getY()); 4247 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 4248 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 4249 4250 // Generate DPAD events based on the trackball movement. 4251 // We pick the axis that has moved the most as the direction of 4252 // the DPAD. When we generate DPAD events for one axis, then the 4253 // other axis is reset -- we don't want to perform DPAD jumps due 4254 // to slight movements in the trackball when making major movements 4255 // along the other axis. 4256 int keycode = 0; 4257 int movement = 0; 4258 float accel = 1; 4259 if (xOff > yOff) { 4260 movement = mX.generate(); 4261 if (movement != 0) { 4262 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 4263 : KeyEvent.KEYCODE_DPAD_LEFT; 4264 accel = mX.acceleration; 4265 mY.reset(2); 4266 } 4267 } else if (yOff > 0) { 4268 movement = mY.generate(); 4269 if (movement != 0) { 4270 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 4271 : KeyEvent.KEYCODE_DPAD_UP; 4272 accel = mY.acceleration; 4273 mX.reset(2); 4274 } 4275 } 4276 4277 if (keycode != 0) { 4278 if (movement < 0) movement = -movement; 4279 int accelMovement = (int)(movement * accel); 4280 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 4281 + " accelMovement=" + accelMovement 4282 + " accel=" + accel); 4283 if (accelMovement > movement) { 4284 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4285 + keycode); 4286 movement--; 4287 int repeatCount = accelMovement - movement; 4288 enqueueInputEvent(new KeyEvent(curTime, curTime, 4289 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4290 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4291 InputDevice.SOURCE_KEYBOARD)); 4292 } 4293 while (movement > 0) { 4294 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4295 + keycode); 4296 movement--; 4297 curTime = SystemClock.uptimeMillis(); 4298 enqueueInputEvent(new KeyEvent(curTime, curTime, 4299 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4300 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4301 InputDevice.SOURCE_KEYBOARD)); 4302 enqueueInputEvent(new KeyEvent(curTime, curTime, 4303 KeyEvent.ACTION_UP, keycode, 0, metaState, 4304 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4305 InputDevice.SOURCE_KEYBOARD)); 4306 } 4307 mLastTime = curTime; 4308 } 4309 } 4310 4311 public void cancel(MotionEvent event) { 4312 mLastTime = Integer.MIN_VALUE; 4313 4314 // If we reach this, we consumed a trackball event. 4315 // Because we will not translate the trackball event into a key event, 4316 // touch mode will not exit, so we exit touch mode here. 4317 if (mView != null && mAdded) { 4318 ensureTouchMode(false); 4319 } 4320 } 4321 } 4322 4323 /** 4324 * Maintains state information for a single trackball axis, generating 4325 * discrete (DPAD) movements based on raw trackball motion. 4326 */ 4327 static final class TrackballAxis { 4328 /** 4329 * The maximum amount of acceleration we will apply. 4330 */ 4331 static final float MAX_ACCELERATION = 20; 4332 4333 /** 4334 * The maximum amount of time (in milliseconds) between events in order 4335 * for us to consider the user to be doing fast trackball movements, 4336 * and thus apply an acceleration. 4337 */ 4338 static final long FAST_MOVE_TIME = 150; 4339 4340 /** 4341 * Scaling factor to the time (in milliseconds) between events to how 4342 * much to multiple/divide the current acceleration. When movement 4343 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4344 * FAST_MOVE_TIME it divides it. 4345 */ 4346 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4347 4348 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4349 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4350 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4351 4352 float position; 4353 float acceleration = 1; 4354 long lastMoveTime = 0; 4355 int step; 4356 int dir; 4357 int nonAccelMovement; 4358 4359 void reset(int _step) { 4360 position = 0; 4361 acceleration = 1; 4362 lastMoveTime = 0; 4363 step = _step; 4364 dir = 0; 4365 } 4366 4367 /** 4368 * Add trackball movement into the state. If the direction of movement 4369 * has been reversed, the state is reset before adding the 4370 * movement (so that you don't have to compensate for any previously 4371 * collected movement before see the result of the movement in the 4372 * new direction). 4373 * 4374 * @return Returns the absolute value of the amount of movement 4375 * collected so far. 4376 */ 4377 float collect(float off, long time, String axis) { 4378 long normTime; 4379 if (off > 0) { 4380 normTime = (long)(off * FAST_MOVE_TIME); 4381 if (dir < 0) { 4382 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4383 position = 0; 4384 step = 0; 4385 acceleration = 1; 4386 lastMoveTime = 0; 4387 } 4388 dir = 1; 4389 } else if (off < 0) { 4390 normTime = (long)((-off) * FAST_MOVE_TIME); 4391 if (dir > 0) { 4392 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4393 position = 0; 4394 step = 0; 4395 acceleration = 1; 4396 lastMoveTime = 0; 4397 } 4398 dir = -1; 4399 } else { 4400 normTime = 0; 4401 } 4402 4403 // The number of milliseconds between each movement that is 4404 // considered "normal" and will not result in any acceleration 4405 // or deceleration, scaled by the offset we have here. 4406 if (normTime > 0) { 4407 long delta = time - lastMoveTime; 4408 lastMoveTime = time; 4409 float acc = acceleration; 4410 if (delta < normTime) { 4411 // The user is scrolling rapidly, so increase acceleration. 4412 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4413 if (scale > 1) acc *= scale; 4414 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4415 + off + " normTime=" + normTime + " delta=" + delta 4416 + " scale=" + scale + " acc=" + acc); 4417 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4418 } else { 4419 // The user is scrolling slowly, so decrease acceleration. 4420 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4421 if (scale > 1) acc /= scale; 4422 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4423 + off + " normTime=" + normTime + " delta=" + delta 4424 + " scale=" + scale + " acc=" + acc); 4425 acceleration = acc > 1 ? acc : 1; 4426 } 4427 } 4428 position += off; 4429 return Math.abs(position); 4430 } 4431 4432 /** 4433 * Generate the number of discrete movement events appropriate for 4434 * the currently collected trackball movement. 4435 * 4436 * @return Returns the number of discrete movements, either positive 4437 * or negative, or 0 if there is not enough trackball movement yet 4438 * for a discrete movement. 4439 */ 4440 int generate() { 4441 int movement = 0; 4442 nonAccelMovement = 0; 4443 do { 4444 final int dir = position >= 0 ? 1 : -1; 4445 switch (step) { 4446 // If we are going to execute the first step, then we want 4447 // to do this as soon as possible instead of waiting for 4448 // a full movement, in order to make things look responsive. 4449 case 0: 4450 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4451 return movement; 4452 } 4453 movement += dir; 4454 nonAccelMovement += dir; 4455 step = 1; 4456 break; 4457 // If we have generated the first movement, then we need 4458 // to wait for the second complete trackball motion before 4459 // generating the second discrete movement. 4460 case 1: 4461 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4462 return movement; 4463 } 4464 movement += dir; 4465 nonAccelMovement += dir; 4466 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4467 step = 2; 4468 break; 4469 // After the first two, we generate discrete movements 4470 // consistently with the trackball, applying an acceleration 4471 // if the trackball is moving quickly. This is a simple 4472 // acceleration on top of what we already compute based 4473 // on how quickly the wheel is being turned, to apply 4474 // a longer increasing acceleration to continuous movement 4475 // in one direction. 4476 default: 4477 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4478 return movement; 4479 } 4480 movement += dir; 4481 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4482 float acc = acceleration; 4483 acc *= 1.1f; 4484 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4485 break; 4486 } 4487 } while (true); 4488 } 4489 } 4490 4491 /** 4492 * Creates dpad events from unhandled joystick movements. 4493 */ 4494 final class SyntheticJoystickHandler extends Handler { 4495 private final static String TAG = "SyntheticJoystickHandler"; 4496 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4497 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4498 4499 private int mLastXDirection; 4500 private int mLastYDirection; 4501 private int mLastXKeyCode; 4502 private int mLastYKeyCode; 4503 4504 public SyntheticJoystickHandler() { 4505 super(true); 4506 } 4507 4508 @Override 4509 public void handleMessage(Message msg) { 4510 switch (msg.what) { 4511 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4512 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4513 KeyEvent oldEvent = (KeyEvent)msg.obj; 4514 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4515 SystemClock.uptimeMillis(), 4516 oldEvent.getRepeatCount() + 1); 4517 if (mAttachInfo.mHasWindowFocus) { 4518 enqueueInputEvent(e); 4519 Message m = obtainMessage(msg.what, e); 4520 m.setAsynchronous(true); 4521 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4522 } 4523 } break; 4524 } 4525 } 4526 4527 public void process(MotionEvent event) { 4528 switch(event.getActionMasked()) { 4529 case MotionEvent.ACTION_CANCEL: 4530 cancel(event); 4531 break; 4532 case MotionEvent.ACTION_MOVE: 4533 update(event, true); 4534 break; 4535 default: 4536 Log.w(TAG, "Unexpected action: " + event.getActionMasked()); 4537 } 4538 } 4539 4540 private void cancel(MotionEvent event) { 4541 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4542 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4543 update(event, false); 4544 } 4545 4546 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4547 final long time = event.getEventTime(); 4548 final int metaState = event.getMetaState(); 4549 final int deviceId = event.getDeviceId(); 4550 final int source = event.getSource(); 4551 4552 int xDirection = joystickAxisValueToDirection( 4553 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4554 if (xDirection == 0) { 4555 xDirection = joystickAxisValueToDirection(event.getX()); 4556 } 4557 4558 int yDirection = joystickAxisValueToDirection( 4559 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4560 if (yDirection == 0) { 4561 yDirection = joystickAxisValueToDirection(event.getY()); 4562 } 4563 4564 if (xDirection != mLastXDirection) { 4565 if (mLastXKeyCode != 0) { 4566 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4567 enqueueInputEvent(new KeyEvent(time, time, 4568 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4569 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4570 mLastXKeyCode = 0; 4571 } 4572 4573 mLastXDirection = xDirection; 4574 4575 if (xDirection != 0 && synthesizeNewKeys) { 4576 mLastXKeyCode = xDirection > 0 4577 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4578 final KeyEvent e = new KeyEvent(time, time, 4579 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4580 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4581 enqueueInputEvent(e); 4582 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4583 m.setAsynchronous(true); 4584 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4585 } 4586 } 4587 4588 if (yDirection != mLastYDirection) { 4589 if (mLastYKeyCode != 0) { 4590 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4591 enqueueInputEvent(new KeyEvent(time, time, 4592 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4593 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4594 mLastYKeyCode = 0; 4595 } 4596 4597 mLastYDirection = yDirection; 4598 4599 if (yDirection != 0 && synthesizeNewKeys) { 4600 mLastYKeyCode = yDirection > 0 4601 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4602 final KeyEvent e = new KeyEvent(time, time, 4603 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4604 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4605 enqueueInputEvent(e); 4606 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4607 m.setAsynchronous(true); 4608 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4609 } 4610 } 4611 } 4612 4613 private int joystickAxisValueToDirection(float value) { 4614 if (value >= 0.5f) { 4615 return 1; 4616 } else if (value <= -0.5f) { 4617 return -1; 4618 } else { 4619 return 0; 4620 } 4621 } 4622 } 4623 4624 /** 4625 * Creates dpad events from unhandled touch navigation movements. 4626 */ 4627 final class SyntheticTouchNavigationHandler extends Handler { 4628 private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 4629 private static final boolean LOCAL_DEBUG = false; 4630 4631 // Assumed nominal width and height in millimeters of a touch navigation pad, 4632 // if no resolution information is available from the input system. 4633 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 4634 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 4635 4636 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 4637 4638 // The nominal distance traveled to move by one unit. 4639 private static final int TICK_DISTANCE_MILLIMETERS = 12; 4640 4641 // Minimum and maximum fling velocity in ticks per second. 4642 // The minimum velocity should be set such that we perform enough ticks per 4643 // second that the fling appears to be fluid. For example, if we set the minimum 4644 // to 2 ticks per second, then there may be up to half a second delay between the next 4645 // to last and last ticks which is noticeably discrete and jerky. This value should 4646 // probably not be set to anything less than about 4. 4647 // If fling accuracy is a problem then consider tuning the tick distance instead. 4648 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 4649 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 4650 4651 // Fling velocity decay factor applied after each new key is emitted. 4652 // This parameter controls the deceleration and overall duration of the fling. 4653 // The fling stops automatically when its velocity drops below the minimum 4654 // fling velocity defined above. 4655 private static final float FLING_TICK_DECAY = 0.8f; 4656 4657 /* The input device that we are tracking. */ 4658 4659 private int mCurrentDeviceId = -1; 4660 private int mCurrentSource; 4661 private boolean mCurrentDeviceSupported; 4662 4663 /* Configuration for the current input device. */ 4664 4665 // The scaled tick distance. A movement of this amount should generally translate 4666 // into a single dpad event in a given direction. 4667 private float mConfigTickDistance; 4668 4669 // The minimum and maximum scaled fling velocity. 4670 private float mConfigMinFlingVelocity; 4671 private float mConfigMaxFlingVelocity; 4672 4673 /* Tracking state. */ 4674 4675 // The velocity tracker for detecting flings. 4676 private VelocityTracker mVelocityTracker; 4677 4678 // The active pointer id, or -1 if none. 4679 private int mActivePointerId = -1; 4680 4681 // Location where tracking started. 4682 private float mStartX; 4683 private float mStartY; 4684 4685 // Most recently observed position. 4686 private float mLastX; 4687 private float mLastY; 4688 4689 // Accumulated movement delta since the last direction key was sent. 4690 private float mAccumulatedX; 4691 private float mAccumulatedY; 4692 4693 // Set to true if any movement was delivered to the app. 4694 // Implies that tap slop was exceeded. 4695 private boolean mConsumedMovement; 4696 4697 // The most recently sent key down event. 4698 // The keycode remains set until the direction changes or a fling ends 4699 // so that repeated key events may be generated as required. 4700 private long mPendingKeyDownTime; 4701 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4702 private int mPendingKeyRepeatCount; 4703 private int mPendingKeyMetaState; 4704 4705 // The current fling velocity while a fling is in progress. 4706 private boolean mFlinging; 4707 private float mFlingVelocity; 4708 4709 public SyntheticTouchNavigationHandler() { 4710 super(true); 4711 } 4712 4713 public void process(MotionEvent event) { 4714 // Update the current device information. 4715 final long time = event.getEventTime(); 4716 final int deviceId = event.getDeviceId(); 4717 final int source = event.getSource(); 4718 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 4719 finishKeys(time); 4720 finishTracking(time); 4721 mCurrentDeviceId = deviceId; 4722 mCurrentSource = source; 4723 mCurrentDeviceSupported = false; 4724 InputDevice device = event.getDevice(); 4725 if (device != null) { 4726 // In order to support an input device, we must know certain 4727 // characteristics about it, such as its size and resolution. 4728 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 4729 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 4730 if (xRange != null && yRange != null) { 4731 mCurrentDeviceSupported = true; 4732 4733 // Infer the resolution if it not actually known. 4734 float xRes = xRange.getResolution(); 4735 if (xRes <= 0) { 4736 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 4737 } 4738 float yRes = yRange.getResolution(); 4739 if (yRes <= 0) { 4740 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 4741 } 4742 float nominalRes = (xRes + yRes) * 0.5f; 4743 4744 // Precompute all of the configuration thresholds we will need. 4745 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 4746 mConfigMinFlingVelocity = 4747 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4748 mConfigMaxFlingVelocity = 4749 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4750 4751 if (LOCAL_DEBUG) { 4752 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 4753 + " (" + Integer.toHexString(mCurrentSource) + "): " 4754 + ", mConfigTickDistance=" + mConfigTickDistance 4755 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 4756 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 4757 } 4758 } 4759 } 4760 } 4761 if (!mCurrentDeviceSupported) { 4762 return; 4763 } 4764 4765 // Handle the event. 4766 final int action = event.getActionMasked(); 4767 switch (action) { 4768 case MotionEvent.ACTION_DOWN: { 4769 boolean caughtFling = mFlinging; 4770 finishKeys(time); 4771 finishTracking(time); 4772 mActivePointerId = event.getPointerId(0); 4773 mVelocityTracker = VelocityTracker.obtain(); 4774 mVelocityTracker.addMovement(event); 4775 mStartX = event.getX(); 4776 mStartY = event.getY(); 4777 mLastX = mStartX; 4778 mLastY = mStartY; 4779 mAccumulatedX = 0; 4780 mAccumulatedY = 0; 4781 4782 // If we caught a fling, then pretend that the tap slop has already 4783 // been exceeded to suppress taps whose only purpose is to stop the fling. 4784 mConsumedMovement = caughtFling; 4785 break; 4786 } 4787 4788 case MotionEvent.ACTION_MOVE: 4789 case MotionEvent.ACTION_UP: { 4790 if (mActivePointerId < 0) { 4791 break; 4792 } 4793 final int index = event.findPointerIndex(mActivePointerId); 4794 if (index < 0) { 4795 finishKeys(time); 4796 finishTracking(time); 4797 break; 4798 } 4799 4800 mVelocityTracker.addMovement(event); 4801 final float x = event.getX(index); 4802 final float y = event.getY(index); 4803 mAccumulatedX += x - mLastX; 4804 mAccumulatedY += y - mLastY; 4805 mLastX = x; 4806 mLastY = y; 4807 4808 // Consume any accumulated movement so far. 4809 final int metaState = event.getMetaState(); 4810 consumeAccumulatedMovement(time, metaState); 4811 4812 // Detect taps and flings. 4813 if (action == MotionEvent.ACTION_UP) { 4814 if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4815 // It might be a fling. 4816 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 4817 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 4818 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 4819 if (!startFling(time, vx, vy)) { 4820 finishKeys(time); 4821 } 4822 } 4823 finishTracking(time); 4824 } 4825 break; 4826 } 4827 4828 case MotionEvent.ACTION_CANCEL: { 4829 finishKeys(time); 4830 finishTracking(time); 4831 break; 4832 } 4833 } 4834 } 4835 4836 public void cancel(MotionEvent event) { 4837 if (mCurrentDeviceId == event.getDeviceId() 4838 && mCurrentSource == event.getSource()) { 4839 final long time = event.getEventTime(); 4840 finishKeys(time); 4841 finishTracking(time); 4842 } 4843 } 4844 4845 private void finishKeys(long time) { 4846 cancelFling(); 4847 sendKeyUp(time); 4848 } 4849 4850 private void finishTracking(long time) { 4851 if (mActivePointerId >= 0) { 4852 mActivePointerId = -1; 4853 mVelocityTracker.recycle(); 4854 mVelocityTracker = null; 4855 } 4856 } 4857 4858 private void consumeAccumulatedMovement(long time, int metaState) { 4859 final float absX = Math.abs(mAccumulatedX); 4860 final float absY = Math.abs(mAccumulatedY); 4861 if (absX >= absY) { 4862 if (absX >= mConfigTickDistance) { 4863 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 4864 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 4865 mAccumulatedY = 0; 4866 mConsumedMovement = true; 4867 } 4868 } else { 4869 if (absY >= mConfigTickDistance) { 4870 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 4871 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 4872 mAccumulatedX = 0; 4873 mConsumedMovement = true; 4874 } 4875 } 4876 } 4877 4878 private float consumeAccumulatedMovement(long time, int metaState, 4879 float accumulator, int negativeKeyCode, int positiveKeyCode) { 4880 while (accumulator <= -mConfigTickDistance) { 4881 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 4882 accumulator += mConfigTickDistance; 4883 } 4884 while (accumulator >= mConfigTickDistance) { 4885 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 4886 accumulator -= mConfigTickDistance; 4887 } 4888 return accumulator; 4889 } 4890 4891 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 4892 if (mPendingKeyCode != keyCode) { 4893 sendKeyUp(time); 4894 mPendingKeyDownTime = time; 4895 mPendingKeyCode = keyCode; 4896 mPendingKeyRepeatCount = 0; 4897 } else { 4898 mPendingKeyRepeatCount += 1; 4899 } 4900 mPendingKeyMetaState = metaState; 4901 4902 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 4903 // but it doesn't quite make sense when simulating the events in this way. 4904 if (LOCAL_DEBUG) { 4905 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 4906 + ", repeatCount=" + mPendingKeyRepeatCount 4907 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4908 } 4909 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4910 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 4911 mPendingKeyMetaState, mCurrentDeviceId, 4912 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 4913 } 4914 4915 private void sendKeyUp(long time) { 4916 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4917 if (LOCAL_DEBUG) { 4918 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 4919 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4920 } 4921 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4922 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 4923 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 4924 mCurrentSource)); 4925 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4926 } 4927 } 4928 4929 private boolean startFling(long time, float vx, float vy) { 4930 if (LOCAL_DEBUG) { 4931 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 4932 + ", min=" + mConfigMinFlingVelocity); 4933 } 4934 4935 // Flings must be oriented in the same direction as the preceding movements. 4936 switch (mPendingKeyCode) { 4937 case KeyEvent.KEYCODE_DPAD_LEFT: 4938 if (-vx >= mConfigMinFlingVelocity 4939 && Math.abs(vy) < mConfigMinFlingVelocity) { 4940 mFlingVelocity = -vx; 4941 break; 4942 } 4943 return false; 4944 4945 case KeyEvent.KEYCODE_DPAD_RIGHT: 4946 if (vx >= mConfigMinFlingVelocity 4947 && Math.abs(vy) < mConfigMinFlingVelocity) { 4948 mFlingVelocity = vx; 4949 break; 4950 } 4951 return false; 4952 4953 case KeyEvent.KEYCODE_DPAD_UP: 4954 if (-vy >= mConfigMinFlingVelocity 4955 && Math.abs(vx) < mConfigMinFlingVelocity) { 4956 mFlingVelocity = -vy; 4957 break; 4958 } 4959 return false; 4960 4961 case KeyEvent.KEYCODE_DPAD_DOWN: 4962 if (vy >= mConfigMinFlingVelocity 4963 && Math.abs(vx) < mConfigMinFlingVelocity) { 4964 mFlingVelocity = vy; 4965 break; 4966 } 4967 return false; 4968 } 4969 4970 // Post the first fling event. 4971 mFlinging = postFling(time); 4972 return mFlinging; 4973 } 4974 4975 private boolean postFling(long time) { 4976 // The idea here is to estimate the time when the pointer would have 4977 // traveled one tick distance unit given the current fling velocity. 4978 // This effect creates continuity of motion. 4979 if (mFlingVelocity >= mConfigMinFlingVelocity) { 4980 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 4981 postAtTime(mFlingRunnable, time + delay); 4982 if (LOCAL_DEBUG) { 4983 Log.d(LOCAL_TAG, "Posted fling: velocity=" 4984 + mFlingVelocity + ", delay=" + delay 4985 + ", keyCode=" + mPendingKeyCode); 4986 } 4987 return true; 4988 } 4989 return false; 4990 } 4991 4992 private void cancelFling() { 4993 if (mFlinging) { 4994 removeCallbacks(mFlingRunnable); 4995 mFlinging = false; 4996 } 4997 } 4998 4999 private final Runnable mFlingRunnable = new Runnable() { 5000 @Override 5001 public void run() { 5002 final long time = SystemClock.uptimeMillis(); 5003 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 5004 mFlingVelocity *= FLING_TICK_DECAY; 5005 if (!postFling(time)) { 5006 mFlinging = false; 5007 finishKeys(time); 5008 } 5009 } 5010 }; 5011 } 5012 5013 final class SyntheticKeyboardHandler { 5014 public void process(KeyEvent event) { 5015 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) { 5016 return; 5017 } 5018 5019 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5020 final int keyCode = event.getKeyCode(); 5021 final int metaState = event.getMetaState(); 5022 5023 // Check for fallback actions specified by the key character map. 5024 KeyCharacterMap.FallbackAction fallbackAction = 5025 kcm.getFallbackAction(keyCode, metaState); 5026 if (fallbackAction != null) { 5027 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5028 KeyEvent fallbackEvent = KeyEvent.obtain( 5029 event.getDownTime(), event.getEventTime(), 5030 event.getAction(), fallbackAction.keyCode, 5031 event.getRepeatCount(), fallbackAction.metaState, 5032 event.getDeviceId(), event.getScanCode(), 5033 flags, event.getSource(), null); 5034 fallbackAction.recycle(); 5035 enqueueInputEvent(fallbackEvent); 5036 } 5037 } 5038 } 5039 5040 /** 5041 * Returns true if the key is used for keyboard navigation. 5042 * @param keyEvent The key event. 5043 * @return True if the key is used for keyboard navigation. 5044 */ 5045 private static boolean isNavigationKey(KeyEvent keyEvent) { 5046 switch (keyEvent.getKeyCode()) { 5047 case KeyEvent.KEYCODE_DPAD_LEFT: 5048 case KeyEvent.KEYCODE_DPAD_RIGHT: 5049 case KeyEvent.KEYCODE_DPAD_UP: 5050 case KeyEvent.KEYCODE_DPAD_DOWN: 5051 case KeyEvent.KEYCODE_DPAD_CENTER: 5052 case KeyEvent.KEYCODE_PAGE_UP: 5053 case KeyEvent.KEYCODE_PAGE_DOWN: 5054 case KeyEvent.KEYCODE_MOVE_HOME: 5055 case KeyEvent.KEYCODE_MOVE_END: 5056 case KeyEvent.KEYCODE_TAB: 5057 case KeyEvent.KEYCODE_SPACE: 5058 case KeyEvent.KEYCODE_ENTER: 5059 return true; 5060 } 5061 return false; 5062 } 5063 5064 /** 5065 * Returns true if the key is used for typing. 5066 * @param keyEvent The key event. 5067 * @return True if the key is used for typing. 5068 */ 5069 private static boolean isTypingKey(KeyEvent keyEvent) { 5070 return keyEvent.getUnicodeChar() > 0; 5071 } 5072 5073 /** 5074 * See if the key event means we should leave touch mode (and leave touch mode if so). 5075 * @param event The key event. 5076 * @return Whether this key event should be consumed (meaning the act of 5077 * leaving touch mode alone is considered the event). 5078 */ 5079 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 5080 // Only relevant in touch mode. 5081 if (!mAttachInfo.mInTouchMode) { 5082 return false; 5083 } 5084 5085 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 5086 final int action = event.getAction(); 5087 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 5088 return false; 5089 } 5090 5091 // Don't leave touch mode if the IME told us not to. 5092 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 5093 return false; 5094 } 5095 5096 // If the key can be used for keyboard navigation then leave touch mode 5097 // and select a focused view if needed (in ensureTouchMode). 5098 // When a new focused view is selected, we consume the navigation key because 5099 // navigation doesn't make much sense unless a view already has focus so 5100 // the key's purpose is to set focus. 5101 if (isNavigationKey(event)) { 5102 return ensureTouchMode(false); 5103 } 5104 5105 // If the key can be used for typing then leave touch mode 5106 // and select a focused view if needed (in ensureTouchMode). 5107 // Always allow the view to process the typing key. 5108 if (isTypingKey(event)) { 5109 ensureTouchMode(false); 5110 return false; 5111 } 5112 5113 return false; 5114 } 5115 5116 /* drag/drop */ 5117 void setLocalDragState(Object obj) { 5118 mLocalDragState = obj; 5119 } 5120 5121 private void handleDragEvent(DragEvent event) { 5122 // From the root, only drag start/end/location are dispatched. entered/exited 5123 // are determined and dispatched by the viewgroup hierarchy, who then report 5124 // that back here for ultimate reporting back to the framework. 5125 if (mView != null && mAdded) { 5126 final int what = event.mAction; 5127 5128 if (what == DragEvent.ACTION_DRAG_EXITED) { 5129 // A direct EXITED event means that the window manager knows we've just crossed 5130 // a window boundary, so the current drag target within this one must have 5131 // just been exited. Send it the usual notifications and then we're done 5132 // for now. 5133 mView.dispatchDragEvent(event); 5134 } else { 5135 // Cache the drag description when the operation starts, then fill it in 5136 // on subsequent calls as a convenience 5137 if (what == DragEvent.ACTION_DRAG_STARTED) { 5138 mCurrentDragView = null; // Start the current-recipient tracking 5139 mDragDescription = event.mClipDescription; 5140 } else { 5141 event.mClipDescription = mDragDescription; 5142 } 5143 5144 // For events with a [screen] location, translate into window coordinates 5145 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 5146 mDragPoint.set(event.mX, event.mY); 5147 if (mTranslator != null) { 5148 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 5149 } 5150 5151 if (mCurScrollY != 0) { 5152 mDragPoint.offset(0, mCurScrollY); 5153 } 5154 5155 event.mX = mDragPoint.x; 5156 event.mY = mDragPoint.y; 5157 } 5158 5159 // Remember who the current drag target is pre-dispatch 5160 final View prevDragView = mCurrentDragView; 5161 5162 // Now dispatch the drag/drop event 5163 boolean result = mView.dispatchDragEvent(event); 5164 5165 // If we changed apparent drag target, tell the OS about it 5166 if (prevDragView != mCurrentDragView) { 5167 try { 5168 if (prevDragView != null) { 5169 mWindowSession.dragRecipientExited(mWindow); 5170 } 5171 if (mCurrentDragView != null) { 5172 mWindowSession.dragRecipientEntered(mWindow); 5173 } 5174 } catch (RemoteException e) { 5175 Slog.e(TAG, "Unable to note drag target change"); 5176 } 5177 } 5178 5179 // Report the drop result when we're done 5180 if (what == DragEvent.ACTION_DROP) { 5181 mDragDescription = null; 5182 try { 5183 Log.i(TAG, "Reporting drop result: " + result); 5184 mWindowSession.reportDropResult(mWindow, result); 5185 } catch (RemoteException e) { 5186 Log.e(TAG, "Unable to report drop result"); 5187 } 5188 } 5189 5190 // When the drag operation ends, release any local state object 5191 // that may have been in use 5192 if (what == DragEvent.ACTION_DRAG_ENDED) { 5193 setLocalDragState(null); 5194 } 5195 } 5196 } 5197 event.recycle(); 5198 } 5199 5200 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 5201 if (mSeq != args.seq) { 5202 // The sequence has changed, so we need to update our value and make 5203 // sure to do a traversal afterward so the window manager is given our 5204 // most recent data. 5205 mSeq = args.seq; 5206 mAttachInfo.mForceReportNewAttributes = true; 5207 scheduleTraversals(); 5208 } 5209 if (mView == null) return; 5210 if (args.localChanges != 0) { 5211 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 5212 } 5213 5214 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 5215 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 5216 mAttachInfo.mGlobalSystemUiVisibility = visibility; 5217 mView.dispatchSystemUiVisibilityChanged(visibility); 5218 } 5219 } 5220 5221 public void handleDispatchWindowAnimationStarted(int remainingFrameCount) { 5222 if (!mDrawDuringWindowsAnimating && remainingFrameCount != -1) { 5223 mRemainingFrameCount = remainingFrameCount; 5224 mWindowsAnimating = true; 5225 } 5226 } 5227 5228 public void handleDispatchWindowAnimationStopped() { 5229 if (mWindowsAnimating) { 5230 mWindowsAnimating = false; 5231 if (!mDirty.isEmpty() || mIsAnimating || mFullRedrawNeeded) { 5232 scheduleTraversals(); 5233 } 5234 } 5235 } 5236 5237 public void handleDispatchWindowShown() { 5238 mAttachInfo.mTreeObserver.dispatchOnWindowShown(); 5239 } 5240 5241 public void getLastTouchPoint(Point outLocation) { 5242 outLocation.x = (int) mLastTouchPoint.x; 5243 outLocation.y = (int) mLastTouchPoint.y; 5244 } 5245 5246 public void setDragFocus(View newDragTarget) { 5247 if (mCurrentDragView != newDragTarget) { 5248 mCurrentDragView = newDragTarget; 5249 } 5250 } 5251 5252 private AudioManager getAudioManager() { 5253 if (mView == null) { 5254 throw new IllegalStateException("getAudioManager called when there is no mView"); 5255 } 5256 if (mAudioManager == null) { 5257 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 5258 } 5259 return mAudioManager; 5260 } 5261 5262 public AccessibilityInteractionController getAccessibilityInteractionController() { 5263 if (mView == null) { 5264 throw new IllegalStateException("getAccessibilityInteractionController" 5265 + " called when there is no mView"); 5266 } 5267 if (mAccessibilityInteractionController == null) { 5268 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 5269 } 5270 return mAccessibilityInteractionController; 5271 } 5272 5273 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 5274 boolean insetsPending) throws RemoteException { 5275 5276 float appScale = mAttachInfo.mApplicationScale; 5277 boolean restore = false; 5278 if (params != null && mTranslator != null) { 5279 restore = true; 5280 params.backup(); 5281 mTranslator.translateWindowLayout(params); 5282 } 5283 if (params != null) { 5284 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 5285 } 5286 mPendingConfiguration.seq = 0; 5287 //Log.d(TAG, ">>>>>> CALLING relayout"); 5288 if (params != null && mOrigWindowType != params.type) { 5289 // For compatibility with old apps, don't crash here. 5290 if (mTargetSdkVersion < Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 5291 Slog.w(TAG, "Window type can not be changed after " 5292 + "the window is added; ignoring change of " + mView); 5293 params.type = mOrigWindowType; 5294 } 5295 } 5296 int relayoutResult = mWindowSession.relayout( 5297 mWindow, mSeq, params, 5298 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 5299 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 5300 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 5301 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 5302 mPendingStableInsets, mPendingOutsets, mPendingConfiguration, mSurface); 5303 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 5304 if (restore) { 5305 params.restore(); 5306 } 5307 5308 if (mTranslator != null) { 5309 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5310 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5311 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5312 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5313 mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets); 5314 } 5315 return relayoutResult; 5316 } 5317 5318 /** 5319 * {@inheritDoc} 5320 */ 5321 @Override 5322 public void playSoundEffect(int effectId) { 5323 checkThread(); 5324 5325 try { 5326 final AudioManager audioManager = getAudioManager(); 5327 5328 switch (effectId) { 5329 case SoundEffectConstants.CLICK: 5330 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5331 return; 5332 case SoundEffectConstants.NAVIGATION_DOWN: 5333 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5334 return; 5335 case SoundEffectConstants.NAVIGATION_LEFT: 5336 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5337 return; 5338 case SoundEffectConstants.NAVIGATION_RIGHT: 5339 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5340 return; 5341 case SoundEffectConstants.NAVIGATION_UP: 5342 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5343 return; 5344 default: 5345 throw new IllegalArgumentException("unknown effect id " + effectId + 5346 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5347 } 5348 } catch (IllegalStateException e) { 5349 // Exception thrown by getAudioManager() when mView is null 5350 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5351 e.printStackTrace(); 5352 } 5353 } 5354 5355 /** 5356 * {@inheritDoc} 5357 */ 5358 @Override 5359 public boolean performHapticFeedback(int effectId, boolean always) { 5360 try { 5361 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5362 } catch (RemoteException e) { 5363 return false; 5364 } 5365 } 5366 5367 /** 5368 * {@inheritDoc} 5369 */ 5370 @Override 5371 public View focusSearch(View focused, int direction) { 5372 checkThread(); 5373 if (!(mView instanceof ViewGroup)) { 5374 return null; 5375 } 5376 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5377 } 5378 5379 public void debug() { 5380 mView.debug(); 5381 } 5382 5383 public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 5384 String innerPrefix = prefix + " "; 5385 writer.print(prefix); writer.println("ViewRoot:"); 5386 writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded); 5387 writer.print(" mRemoved="); writer.println(mRemoved); 5388 writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled="); 5389 writer.println(mConsumeBatchedInputScheduled); 5390 writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled="); 5391 writer.println(mConsumeBatchedInputImmediatelyScheduled); 5392 writer.print(innerPrefix); writer.print("mPendingInputEventCount="); 5393 writer.println(mPendingInputEventCount); 5394 writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled="); 5395 writer.println(mProcessInputEventsScheduled); 5396 writer.print(innerPrefix); writer.print("mTraversalScheduled="); 5397 writer.print(mTraversalScheduled); 5398 if (mTraversalScheduled) { 5399 writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")"); 5400 } else { 5401 writer.println(); 5402 } 5403 mFirstInputStage.dump(innerPrefix, writer); 5404 5405 mChoreographer.dump(prefix, writer); 5406 5407 writer.print(prefix); writer.println("View Hierarchy:"); 5408 dumpViewHierarchy(innerPrefix, writer, mView); 5409 } 5410 5411 private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) { 5412 writer.print(prefix); 5413 if (view == null) { 5414 writer.println("null"); 5415 return; 5416 } 5417 writer.println(view.toString()); 5418 if (!(view instanceof ViewGroup)) { 5419 return; 5420 } 5421 ViewGroup grp = (ViewGroup)view; 5422 final int N = grp.getChildCount(); 5423 if (N <= 0) { 5424 return; 5425 } 5426 prefix = prefix + " "; 5427 for (int i=0; i<N; i++) { 5428 dumpViewHierarchy(prefix, writer, grp.getChildAt(i)); 5429 } 5430 } 5431 5432 public void dumpGfxInfo(int[] info) { 5433 info[0] = info[1] = 0; 5434 if (mView != null) { 5435 getGfxInfo(mView, info); 5436 } 5437 } 5438 5439 private static void getGfxInfo(View view, int[] info) { 5440 RenderNode renderNode = view.mRenderNode; 5441 info[0]++; 5442 if (renderNode != null) { 5443 info[1] += renderNode.getDebugSize(); 5444 } 5445 5446 if (view instanceof ViewGroup) { 5447 ViewGroup group = (ViewGroup) view; 5448 5449 int count = group.getChildCount(); 5450 for (int i = 0; i < count; i++) { 5451 getGfxInfo(group.getChildAt(i), info); 5452 } 5453 } 5454 } 5455 5456 /** 5457 * @param immediate True, do now if not in traversal. False, put on queue and do later. 5458 * @return True, request has been queued. False, request has been completed. 5459 */ 5460 boolean die(boolean immediate) { 5461 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5462 // done by dispatchDetachedFromWindow will cause havoc on return. 5463 if (immediate && !mIsInTraversal) { 5464 doDie(); 5465 return false; 5466 } 5467 5468 if (!mIsDrawing) { 5469 destroyHardwareRenderer(); 5470 } else { 5471 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 5472 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5473 } 5474 mHandler.sendEmptyMessage(MSG_DIE); 5475 return true; 5476 } 5477 5478 void doDie() { 5479 checkThread(); 5480 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 5481 synchronized (this) { 5482 if (mRemoved) { 5483 return; 5484 } 5485 mRemoved = true; 5486 if (mAdded) { 5487 dispatchDetachedFromWindow(); 5488 } 5489 5490 if (mAdded && !mFirst) { 5491 destroyHardwareRenderer(); 5492 5493 if (mView != null) { 5494 int viewVisibility = mView.getVisibility(); 5495 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5496 if (mWindowAttributesChanged || viewVisibilityChanged) { 5497 // If layout params have been changed, first give them 5498 // to the window manager to make sure it has the correct 5499 // animation info. 5500 try { 5501 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5502 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5503 mWindowSession.finishDrawing(mWindow); 5504 } 5505 } catch (RemoteException e) { 5506 } 5507 } 5508 5509 mSurface.release(); 5510 } 5511 } 5512 5513 mAdded = false; 5514 } 5515 WindowManagerGlobal.getInstance().doRemoveView(this); 5516 } 5517 5518 public void requestUpdateConfiguration(Configuration config) { 5519 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5520 mHandler.sendMessage(msg); 5521 } 5522 5523 public void loadSystemProperties() { 5524 mHandler.post(new Runnable() { 5525 @Override 5526 public void run() { 5527 // Profiling 5528 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5529 profileRendering(mAttachInfo.mHasWindowFocus); 5530 5531 // Hardware rendering 5532 if (mAttachInfo.mHardwareRenderer != null) { 5533 if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) { 5534 invalidate(); 5535 } 5536 } 5537 5538 // Layout debugging 5539 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5540 if (layout != mAttachInfo.mDebugLayout) { 5541 mAttachInfo.mDebugLayout = layout; 5542 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5543 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5544 } 5545 } 5546 } 5547 }); 5548 } 5549 5550 private void destroyHardwareRenderer() { 5551 HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 5552 5553 if (hardwareRenderer != null) { 5554 if (mView != null) { 5555 hardwareRenderer.destroyHardwareResources(mView); 5556 } 5557 hardwareRenderer.destroy(); 5558 hardwareRenderer.setRequested(false); 5559 5560 mAttachInfo.mHardwareRenderer = null; 5561 mAttachInfo.mHardwareAccelerated = false; 5562 } 5563 } 5564 5565 public void dispatchFinishInputConnection(InputConnection connection) { 5566 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5567 mHandler.sendMessage(msg); 5568 } 5569 5570 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5571 Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw, 5572 Configuration newConfig) { 5573 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5574 + " contentInsets=" + contentInsets.toShortString() 5575 + " visibleInsets=" + visibleInsets.toShortString() 5576 + " reportDraw=" + reportDraw); 5577 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5578 if (mTranslator != null) { 5579 mTranslator.translateRectInScreenToAppWindow(frame); 5580 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5581 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5582 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5583 } 5584 SomeArgs args = SomeArgs.obtain(); 5585 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5586 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5587 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5588 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5589 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5590 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5591 args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets; 5592 args.arg7 = sameProcessCall ? new Rect(outsets) : outsets; 5593 msg.obj = args; 5594 mHandler.sendMessage(msg); 5595 } 5596 5597 public void dispatchMoved(int newX, int newY) { 5598 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5599 if (mTranslator != null) { 5600 PointF point = new PointF(newX, newY); 5601 mTranslator.translatePointInScreenToAppWindow(point); 5602 newX = (int) (point.x + 0.5); 5603 newY = (int) (point.y + 0.5); 5604 } 5605 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5606 mHandler.sendMessage(msg); 5607 } 5608 5609 /** 5610 * Represents a pending input event that is waiting in a queue. 5611 * 5612 * Input events are processed in serial order by the timestamp specified by 5613 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5614 * one input event to the application at a time and waits for the application 5615 * to finish handling it before delivering the next one. 5616 * 5617 * However, because the application or IME can synthesize and inject multiple 5618 * key events at a time without going through the input dispatcher, we end up 5619 * needing a queue on the application's side. 5620 */ 5621 private static final class QueuedInputEvent { 5622 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5623 public static final int FLAG_DEFERRED = 1 << 1; 5624 public static final int FLAG_FINISHED = 1 << 2; 5625 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5626 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5627 public static final int FLAG_UNHANDLED = 1 << 5; 5628 5629 public QueuedInputEvent mNext; 5630 5631 public InputEvent mEvent; 5632 public InputEventReceiver mReceiver; 5633 public int mFlags; 5634 5635 public boolean shouldSkipIme() { 5636 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5637 return true; 5638 } 5639 return mEvent instanceof MotionEvent 5640 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5641 } 5642 5643 public boolean shouldSendToSynthesizer() { 5644 if ((mFlags & FLAG_UNHANDLED) != 0) { 5645 return true; 5646 } 5647 5648 return false; 5649 } 5650 5651 @Override 5652 public String toString() { 5653 StringBuilder sb = new StringBuilder("QueuedInputEvent{flags="); 5654 boolean hasPrevious = false; 5655 hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb); 5656 hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb); 5657 hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb); 5658 hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb); 5659 hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb); 5660 hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb); 5661 if (!hasPrevious) { 5662 sb.append("0"); 5663 } 5664 sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false")); 5665 sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false")); 5666 sb.append(", mEvent=" + mEvent + "}"); 5667 return sb.toString(); 5668 } 5669 5670 private boolean flagToString(String name, int flag, 5671 boolean hasPrevious, StringBuilder sb) { 5672 if ((mFlags & flag) != 0) { 5673 if (hasPrevious) { 5674 sb.append("|"); 5675 } 5676 sb.append(name); 5677 return true; 5678 } 5679 return hasPrevious; 5680 } 5681 } 5682 5683 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5684 InputEventReceiver receiver, int flags) { 5685 QueuedInputEvent q = mQueuedInputEventPool; 5686 if (q != null) { 5687 mQueuedInputEventPoolSize -= 1; 5688 mQueuedInputEventPool = q.mNext; 5689 q.mNext = null; 5690 } else { 5691 q = new QueuedInputEvent(); 5692 } 5693 5694 q.mEvent = event; 5695 q.mReceiver = receiver; 5696 q.mFlags = flags; 5697 return q; 5698 } 5699 5700 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5701 q.mEvent = null; 5702 q.mReceiver = null; 5703 5704 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5705 mQueuedInputEventPoolSize += 1; 5706 q.mNext = mQueuedInputEventPool; 5707 mQueuedInputEventPool = q; 5708 } 5709 } 5710 5711 void enqueueInputEvent(InputEvent event) { 5712 enqueueInputEvent(event, null, 0, false); 5713 } 5714 5715 void enqueueInputEvent(InputEvent event, 5716 InputEventReceiver receiver, int flags, boolean processImmediately) { 5717 adjustInputEventForCompatibility(event); 5718 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5719 5720 // Always enqueue the input event in order, regardless of its time stamp. 5721 // We do this because the application or the IME may inject key events 5722 // in response to touch events and we want to ensure that the injected keys 5723 // are processed in the order they were received and we cannot trust that 5724 // the time stamp of injected events are monotonic. 5725 QueuedInputEvent last = mPendingInputEventTail; 5726 if (last == null) { 5727 mPendingInputEventHead = q; 5728 mPendingInputEventTail = q; 5729 } else { 5730 last.mNext = q; 5731 mPendingInputEventTail = q; 5732 } 5733 mPendingInputEventCount += 1; 5734 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5735 mPendingInputEventCount); 5736 5737 if (processImmediately) { 5738 doProcessInputEvents(); 5739 } else { 5740 scheduleProcessInputEvents(); 5741 } 5742 } 5743 5744 private void scheduleProcessInputEvents() { 5745 if (!mProcessInputEventsScheduled) { 5746 mProcessInputEventsScheduled = true; 5747 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5748 msg.setAsynchronous(true); 5749 mHandler.sendMessage(msg); 5750 } 5751 } 5752 5753 void doProcessInputEvents() { 5754 // Deliver all pending input events in the queue. 5755 while (mPendingInputEventHead != null) { 5756 QueuedInputEvent q = mPendingInputEventHead; 5757 mPendingInputEventHead = q.mNext; 5758 if (mPendingInputEventHead == null) { 5759 mPendingInputEventTail = null; 5760 } 5761 q.mNext = null; 5762 5763 mPendingInputEventCount -= 1; 5764 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5765 mPendingInputEventCount); 5766 5767 long eventTime = q.mEvent.getEventTimeNano(); 5768 long oldestEventTime = eventTime; 5769 if (q.mEvent instanceof MotionEvent) { 5770 MotionEvent me = (MotionEvent)q.mEvent; 5771 if (me.getHistorySize() > 0) { 5772 oldestEventTime = me.getHistoricalEventTimeNano(0); 5773 } 5774 } 5775 mChoreographer.mFrameInfo.updateInputEventTime(eventTime, oldestEventTime); 5776 5777 deliverInputEvent(q); 5778 } 5779 5780 // We are done processing all input events that we can process right now 5781 // so we can clear the pending flag immediately. 5782 if (mProcessInputEventsScheduled) { 5783 mProcessInputEventsScheduled = false; 5784 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5785 } 5786 } 5787 5788 private void deliverInputEvent(QueuedInputEvent q) { 5789 Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5790 q.mEvent.getSequenceNumber()); 5791 if (mInputEventConsistencyVerifier != null) { 5792 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5793 } 5794 5795 InputStage stage; 5796 if (q.shouldSendToSynthesizer()) { 5797 stage = mSyntheticInputStage; 5798 } else { 5799 stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5800 } 5801 5802 if (stage != null) { 5803 stage.deliver(q); 5804 } else { 5805 finishInputEvent(q); 5806 } 5807 } 5808 5809 private void finishInputEvent(QueuedInputEvent q) { 5810 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5811 q.mEvent.getSequenceNumber()); 5812 5813 if (q.mReceiver != null) { 5814 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5815 q.mReceiver.finishInputEvent(q.mEvent, handled); 5816 } else { 5817 q.mEvent.recycleIfNeededAfterDispatch(); 5818 } 5819 5820 recycleQueuedInputEvent(q); 5821 } 5822 5823 private void adjustInputEventForCompatibility(InputEvent e) { 5824 if (mTargetSdkVersion < Build.VERSION_CODES.MNC && e instanceof MotionEvent) { 5825 MotionEvent motion = (MotionEvent) e; 5826 final int mask = 5827 MotionEvent.BUTTON_STYLUS_PRIMARY | MotionEvent.BUTTON_STYLUS_SECONDARY; 5828 final int buttonState = motion.getButtonState(); 5829 final int compatButtonState = (buttonState & mask) >> 4; 5830 if (compatButtonState != 0) { 5831 motion.setButtonState(buttonState | compatButtonState); 5832 } 5833 } 5834 } 5835 5836 static boolean isTerminalInputEvent(InputEvent event) { 5837 if (event instanceof KeyEvent) { 5838 final KeyEvent keyEvent = (KeyEvent)event; 5839 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5840 } else { 5841 final MotionEvent motionEvent = (MotionEvent)event; 5842 final int action = motionEvent.getAction(); 5843 return action == MotionEvent.ACTION_UP 5844 || action == MotionEvent.ACTION_CANCEL 5845 || action == MotionEvent.ACTION_HOVER_EXIT; 5846 } 5847 } 5848 5849 void scheduleConsumeBatchedInput() { 5850 if (!mConsumeBatchedInputScheduled) { 5851 mConsumeBatchedInputScheduled = true; 5852 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5853 mConsumedBatchedInputRunnable, null); 5854 } 5855 } 5856 5857 void unscheduleConsumeBatchedInput() { 5858 if (mConsumeBatchedInputScheduled) { 5859 mConsumeBatchedInputScheduled = false; 5860 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5861 mConsumedBatchedInputRunnable, null); 5862 } 5863 } 5864 5865 void scheduleConsumeBatchedInputImmediately() { 5866 if (!mConsumeBatchedInputImmediatelyScheduled) { 5867 unscheduleConsumeBatchedInput(); 5868 mConsumeBatchedInputImmediatelyScheduled = true; 5869 mHandler.post(mConsumeBatchedInputImmediatelyRunnable); 5870 } 5871 } 5872 5873 void doConsumeBatchedInput(long frameTimeNanos) { 5874 if (mConsumeBatchedInputScheduled) { 5875 mConsumeBatchedInputScheduled = false; 5876 if (mInputEventReceiver != null) { 5877 if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos) 5878 && frameTimeNanos != -1) { 5879 // If we consumed a batch here, we want to go ahead and schedule the 5880 // consumption of batched input events on the next frame. Otherwise, we would 5881 // wait until we have more input events pending and might get starved by other 5882 // things occurring in the process. If the frame time is -1, however, then 5883 // we're in a non-batching mode, so there's no need to schedule this. 5884 scheduleConsumeBatchedInput(); 5885 } 5886 } 5887 doProcessInputEvents(); 5888 } 5889 } 5890 5891 final class TraversalRunnable implements Runnable { 5892 @Override 5893 public void run() { 5894 doTraversal(); 5895 } 5896 } 5897 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 5898 5899 final class WindowInputEventReceiver extends InputEventReceiver { 5900 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 5901 super(inputChannel, looper); 5902 } 5903 5904 @Override 5905 public void onInputEvent(InputEvent event) { 5906 enqueueInputEvent(event, this, 0, true); 5907 } 5908 5909 @Override 5910 public void onBatchedInputEventPending() { 5911 if (mUnbufferedInputDispatch) { 5912 super.onBatchedInputEventPending(); 5913 } else { 5914 scheduleConsumeBatchedInput(); 5915 } 5916 } 5917 5918 @Override 5919 public void dispose() { 5920 unscheduleConsumeBatchedInput(); 5921 super.dispose(); 5922 } 5923 } 5924 WindowInputEventReceiver mInputEventReceiver; 5925 5926 final class ConsumeBatchedInputRunnable implements Runnable { 5927 @Override 5928 public void run() { 5929 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 5930 } 5931 } 5932 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 5933 new ConsumeBatchedInputRunnable(); 5934 boolean mConsumeBatchedInputScheduled; 5935 5936 final class ConsumeBatchedInputImmediatelyRunnable implements Runnable { 5937 @Override 5938 public void run() { 5939 doConsumeBatchedInput(-1); 5940 } 5941 } 5942 final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable = 5943 new ConsumeBatchedInputImmediatelyRunnable(); 5944 boolean mConsumeBatchedInputImmediatelyScheduled; 5945 5946 final class InvalidateOnAnimationRunnable implements Runnable { 5947 private boolean mPosted; 5948 private final ArrayList<View> mViews = new ArrayList<View>(); 5949 private final ArrayList<AttachInfo.InvalidateInfo> mViewRects = 5950 new ArrayList<AttachInfo.InvalidateInfo>(); 5951 private View[] mTempViews; 5952 private AttachInfo.InvalidateInfo[] mTempViewRects; 5953 5954 public void addView(View view) { 5955 synchronized (this) { 5956 mViews.add(view); 5957 postIfNeededLocked(); 5958 } 5959 } 5960 5961 public void addViewRect(AttachInfo.InvalidateInfo info) { 5962 synchronized (this) { 5963 mViewRects.add(info); 5964 postIfNeededLocked(); 5965 } 5966 } 5967 5968 public void removeView(View view) { 5969 synchronized (this) { 5970 mViews.remove(view); 5971 5972 for (int i = mViewRects.size(); i-- > 0; ) { 5973 AttachInfo.InvalidateInfo info = mViewRects.get(i); 5974 if (info.target == view) { 5975 mViewRects.remove(i); 5976 info.recycle(); 5977 } 5978 } 5979 5980 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 5981 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 5982 mPosted = false; 5983 } 5984 } 5985 } 5986 5987 @Override 5988 public void run() { 5989 final int viewCount; 5990 final int viewRectCount; 5991 synchronized (this) { 5992 mPosted = false; 5993 5994 viewCount = mViews.size(); 5995 if (viewCount != 0) { 5996 mTempViews = mViews.toArray(mTempViews != null 5997 ? mTempViews : new View[viewCount]); 5998 mViews.clear(); 5999 } 6000 6001 viewRectCount = mViewRects.size(); 6002 if (viewRectCount != 0) { 6003 mTempViewRects = mViewRects.toArray(mTempViewRects != null 6004 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 6005 mViewRects.clear(); 6006 } 6007 } 6008 6009 for (int i = 0; i < viewCount; i++) { 6010 mTempViews[i].invalidate(); 6011 mTempViews[i] = null; 6012 } 6013 6014 for (int i = 0; i < viewRectCount; i++) { 6015 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 6016 info.target.invalidate(info.left, info.top, info.right, info.bottom); 6017 info.recycle(); 6018 } 6019 } 6020 6021 private void postIfNeededLocked() { 6022 if (!mPosted) { 6023 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 6024 mPosted = true; 6025 } 6026 } 6027 } 6028 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 6029 new InvalidateOnAnimationRunnable(); 6030 6031 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 6032 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 6033 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6034 } 6035 6036 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 6037 long delayMilliseconds) { 6038 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 6039 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6040 } 6041 6042 public void dispatchInvalidateOnAnimation(View view) { 6043 mInvalidateOnAnimationRunnable.addView(view); 6044 } 6045 6046 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 6047 mInvalidateOnAnimationRunnable.addViewRect(info); 6048 } 6049 6050 public void cancelInvalidate(View view) { 6051 mHandler.removeMessages(MSG_INVALIDATE, view); 6052 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 6053 // them to the pool 6054 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 6055 mInvalidateOnAnimationRunnable.removeView(view); 6056 } 6057 6058 public void dispatchInputEvent(InputEvent event) { 6059 dispatchInputEvent(event, null); 6060 } 6061 6062 public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) { 6063 SomeArgs args = SomeArgs.obtain(); 6064 args.arg1 = event; 6065 args.arg2 = receiver; 6066 Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args); 6067 msg.setAsynchronous(true); 6068 mHandler.sendMessage(msg); 6069 } 6070 6071 public void synthesizeInputEvent(InputEvent event) { 6072 Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event); 6073 msg.setAsynchronous(true); 6074 mHandler.sendMessage(msg); 6075 } 6076 6077 public void dispatchKeyFromIme(KeyEvent event) { 6078 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 6079 msg.setAsynchronous(true); 6080 mHandler.sendMessage(msg); 6081 } 6082 6083 /** 6084 * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events. 6085 * 6086 * Note that it is the responsibility of the caller of this API to recycle the InputEvent it 6087 * passes in. 6088 */ 6089 public void dispatchUnhandledInputEvent(InputEvent event) { 6090 if (event instanceof MotionEvent) { 6091 event = MotionEvent.obtain((MotionEvent) event); 6092 } 6093 synthesizeInputEvent(event); 6094 } 6095 6096 public void dispatchAppVisibility(boolean visible) { 6097 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 6098 msg.arg1 = visible ? 1 : 0; 6099 mHandler.sendMessage(msg); 6100 } 6101 6102 public void dispatchGetNewSurface() { 6103 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 6104 mHandler.sendMessage(msg); 6105 } 6106 6107 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6108 Message msg = Message.obtain(); 6109 msg.what = MSG_WINDOW_FOCUS_CHANGED; 6110 msg.arg1 = hasFocus ? 1 : 0; 6111 msg.arg2 = inTouchMode ? 1 : 0; 6112 mHandler.sendMessage(msg); 6113 } 6114 6115 public void dispatchWindowShown() { 6116 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN); 6117 } 6118 6119 public void dispatchCloseSystemDialogs(String reason) { 6120 Message msg = Message.obtain(); 6121 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 6122 msg.obj = reason; 6123 mHandler.sendMessage(msg); 6124 } 6125 6126 public void dispatchDragEvent(DragEvent event) { 6127 final int what; 6128 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 6129 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 6130 mHandler.removeMessages(what); 6131 } else { 6132 what = MSG_DISPATCH_DRAG_EVENT; 6133 } 6134 Message msg = mHandler.obtainMessage(what, event); 6135 mHandler.sendMessage(msg); 6136 } 6137 6138 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6139 int localValue, int localChanges) { 6140 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 6141 args.seq = seq; 6142 args.globalVisibility = globalVisibility; 6143 args.localValue = localValue; 6144 args.localChanges = localChanges; 6145 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 6146 } 6147 6148 public void dispatchWindowAnimationStarted(int remainingFrameCount) { 6149 mHandler.obtainMessage(MSG_DISPATCH_WINDOW_ANIMATION_STARTED, 6150 remainingFrameCount, 0 /* unused */).sendToTarget(); 6151 } 6152 6153 public void dispatchWindowAnimationStopped() { 6154 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_ANIMATION_STOPPED); 6155 } 6156 6157 public void dispatchCheckFocus() { 6158 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 6159 // This will result in a call to checkFocus() below. 6160 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 6161 } 6162 } 6163 6164 /** 6165 * Post a callback to send a 6166 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6167 * This event is send at most once every 6168 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 6169 */ 6170 private void postSendWindowContentChangedCallback(View source, int changeType) { 6171 if (mSendWindowContentChangedAccessibilityEvent == null) { 6172 mSendWindowContentChangedAccessibilityEvent = 6173 new SendWindowContentChangedAccessibilityEvent(); 6174 } 6175 mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType); 6176 } 6177 6178 /** 6179 * Remove a posted callback to send a 6180 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6181 */ 6182 private void removeSendWindowContentChangedCallback() { 6183 if (mSendWindowContentChangedAccessibilityEvent != null) { 6184 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 6185 } 6186 } 6187 6188 @Override 6189 public boolean showContextMenuForChild(View originalView) { 6190 return false; 6191 } 6192 6193 @Override 6194 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 6195 return null; 6196 } 6197 6198 @Override 6199 public ActionMode startActionModeForChild( 6200 View originalView, ActionMode.Callback callback, int type) { 6201 return null; 6202 } 6203 6204 @Override 6205 public void createContextMenu(ContextMenu menu) { 6206 } 6207 6208 @Override 6209 public void childDrawableStateChanged(View child) { 6210 } 6211 6212 @Override 6213 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 6214 if (mView == null || mStopped || mPausedForTransition) { 6215 return false; 6216 } 6217 // Intercept accessibility focus events fired by virtual nodes to keep 6218 // track of accessibility focus position in such nodes. 6219 final int eventType = event.getEventType(); 6220 switch (eventType) { 6221 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 6222 final long sourceNodeId = event.getSourceNodeId(); 6223 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6224 sourceNodeId); 6225 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6226 if (source != null) { 6227 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6228 if (provider != null) { 6229 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 6230 sourceNodeId); 6231 final AccessibilityNodeInfo node; 6232 if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6233 node = provider.createAccessibilityNodeInfo( 6234 AccessibilityNodeProvider.HOST_VIEW_ID); 6235 } else { 6236 node = provider.createAccessibilityNodeInfo(virtualNodeId); 6237 } 6238 setAccessibilityFocus(source, node); 6239 } 6240 } 6241 } break; 6242 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 6243 final long sourceNodeId = event.getSourceNodeId(); 6244 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6245 sourceNodeId); 6246 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6247 if (source != null) { 6248 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6249 if (provider != null) { 6250 setAccessibilityFocus(null, null); 6251 } 6252 } 6253 } break; 6254 6255 6256 case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: { 6257 handleWindowContentChangedEvent(event); 6258 } break; 6259 } 6260 mAccessibilityManager.sendAccessibilityEvent(event); 6261 return true; 6262 } 6263 6264 /** 6265 * Updates the focused virtual view, when necessary, in response to a 6266 * content changed event. 6267 * <p> 6268 * This is necessary to get updated bounds after a position change. 6269 * 6270 * @param event an accessibility event of type 6271 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} 6272 */ 6273 private void handleWindowContentChangedEvent(AccessibilityEvent event) { 6274 final View focusedHost = mAccessibilityFocusedHost; 6275 if (focusedHost == null || mAccessibilityFocusedVirtualView == null) { 6276 // No virtual view focused, nothing to do here. 6277 return; 6278 } 6279 6280 final AccessibilityNodeProvider provider = focusedHost.getAccessibilityNodeProvider(); 6281 if (provider == null) { 6282 // Error state: virtual view with no provider. Clear focus. 6283 mAccessibilityFocusedHost = null; 6284 mAccessibilityFocusedVirtualView = null; 6285 focusedHost.clearAccessibilityFocusNoCallbacks(); 6286 return; 6287 } 6288 6289 // We only care about change types that may affect the bounds of the 6290 // focused virtual view. 6291 final int changes = event.getContentChangeTypes(); 6292 if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) == 0 6293 && changes != AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) { 6294 return; 6295 } 6296 6297 final long eventSourceNodeId = event.getSourceNodeId(); 6298 final int changedViewId = AccessibilityNodeInfo.getAccessibilityViewId(eventSourceNodeId); 6299 6300 // Search up the tree for subtree containment. 6301 boolean hostInSubtree = false; 6302 View root = mAccessibilityFocusedHost; 6303 while (root != null && !hostInSubtree) { 6304 if (changedViewId == root.getAccessibilityViewId()) { 6305 hostInSubtree = true; 6306 } else { 6307 final ViewParent parent = root.getParent(); 6308 if (parent instanceof View) { 6309 root = (View) parent; 6310 } else { 6311 root = null; 6312 } 6313 } 6314 } 6315 6316 // We care only about changes in subtrees containing the host view. 6317 if (!hostInSubtree) { 6318 return; 6319 } 6320 6321 final long focusedSourceNodeId = mAccessibilityFocusedVirtualView.getSourceNodeId(); 6322 int focusedChildId = AccessibilityNodeInfo.getVirtualDescendantId(focusedSourceNodeId); 6323 if (focusedChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6324 // TODO: Should we clear the focused virtual view? 6325 focusedChildId = AccessibilityNodeProvider.HOST_VIEW_ID; 6326 } 6327 6328 // Refresh the node for the focused virtual view. 6329 final Rect oldBounds = mTempRect; 6330 mAccessibilityFocusedVirtualView.getBoundsInScreen(oldBounds); 6331 mAccessibilityFocusedVirtualView = provider.createAccessibilityNodeInfo(focusedChildId); 6332 if (mAccessibilityFocusedVirtualView == null) { 6333 // Error state: The node no longer exists. Clear focus. 6334 mAccessibilityFocusedHost = null; 6335 focusedHost.clearAccessibilityFocusNoCallbacks(); 6336 6337 // This will probably fail, but try to keep the provider's internal 6338 // state consistent by clearing focus. 6339 provider.performAction(focusedChildId, 6340 AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS.getId(), null); 6341 invalidateRectOnScreen(oldBounds); 6342 } else { 6343 // The node was refreshed, invalidate bounds if necessary. 6344 final Rect newBounds = mAccessibilityFocusedVirtualView.getBoundsInScreen(); 6345 if (!oldBounds.equals(newBounds)) { 6346 oldBounds.union(newBounds); 6347 invalidateRectOnScreen(oldBounds); 6348 } 6349 } 6350 } 6351 6352 @Override 6353 public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) { 6354 postSendWindowContentChangedCallback(source, changeType); 6355 } 6356 6357 @Override 6358 public boolean canResolveLayoutDirection() { 6359 return true; 6360 } 6361 6362 @Override 6363 public boolean isLayoutDirectionResolved() { 6364 return true; 6365 } 6366 6367 @Override 6368 public int getLayoutDirection() { 6369 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 6370 } 6371 6372 @Override 6373 public boolean canResolveTextDirection() { 6374 return true; 6375 } 6376 6377 @Override 6378 public boolean isTextDirectionResolved() { 6379 return true; 6380 } 6381 6382 @Override 6383 public int getTextDirection() { 6384 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 6385 } 6386 6387 @Override 6388 public boolean canResolveTextAlignment() { 6389 return true; 6390 } 6391 6392 @Override 6393 public boolean isTextAlignmentResolved() { 6394 return true; 6395 } 6396 6397 @Override 6398 public int getTextAlignment() { 6399 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 6400 } 6401 6402 private View getCommonPredecessor(View first, View second) { 6403 if (mTempHashSet == null) { 6404 mTempHashSet = new HashSet<View>(); 6405 } 6406 HashSet<View> seen = mTempHashSet; 6407 seen.clear(); 6408 View firstCurrent = first; 6409 while (firstCurrent != null) { 6410 seen.add(firstCurrent); 6411 ViewParent firstCurrentParent = firstCurrent.mParent; 6412 if (firstCurrentParent instanceof View) { 6413 firstCurrent = (View) firstCurrentParent; 6414 } else { 6415 firstCurrent = null; 6416 } 6417 } 6418 View secondCurrent = second; 6419 while (secondCurrent != null) { 6420 if (seen.contains(secondCurrent)) { 6421 seen.clear(); 6422 return secondCurrent; 6423 } 6424 ViewParent secondCurrentParent = secondCurrent.mParent; 6425 if (secondCurrentParent instanceof View) { 6426 secondCurrent = (View) secondCurrentParent; 6427 } else { 6428 secondCurrent = null; 6429 } 6430 } 6431 seen.clear(); 6432 return null; 6433 } 6434 6435 void checkThread() { 6436 if (mThread != Thread.currentThread()) { 6437 throw new CalledFromWrongThreadException( 6438 "Only the original thread that created a view hierarchy can touch its views."); 6439 } 6440 } 6441 6442 @Override 6443 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 6444 // ViewAncestor never intercepts touch event, so this can be a no-op 6445 } 6446 6447 @Override 6448 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 6449 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 6450 if (rectangle != null) { 6451 mTempRect.set(rectangle); 6452 mTempRect.offset(0, -mCurScrollY); 6453 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 6454 try { 6455 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect); 6456 } catch (RemoteException re) { 6457 /* ignore */ 6458 } 6459 } 6460 return scrolled; 6461 } 6462 6463 @Override 6464 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 6465 // Do nothing. 6466 } 6467 6468 @Override 6469 public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 6470 return false; 6471 } 6472 6473 @Override 6474 public void onStopNestedScroll(View target) { 6475 } 6476 6477 @Override 6478 public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) { 6479 } 6480 6481 @Override 6482 public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 6483 int dxUnconsumed, int dyUnconsumed) { 6484 } 6485 6486 @Override 6487 public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) { 6488 } 6489 6490 @Override 6491 public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 6492 return false; 6493 } 6494 6495 @Override 6496 public boolean onNestedPreFling(View target, float velocityX, float velocityY) { 6497 return false; 6498 } 6499 6500 @Override 6501 public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) { 6502 return false; 6503 } 6504 6505 void changeCanvasOpacity(boolean opaque) { 6506 Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque); 6507 if (mAttachInfo.mHardwareRenderer != null) { 6508 mAttachInfo.mHardwareRenderer.setOpaque(opaque); 6509 } 6510 } 6511 6512 class TakenSurfaceHolder extends BaseSurfaceHolder { 6513 @Override 6514 public boolean onAllowLockCanvas() { 6515 return mDrawingAllowed; 6516 } 6517 6518 @Override 6519 public void onRelayoutContainer() { 6520 // Not currently interesting -- from changing between fixed and layout size. 6521 } 6522 6523 @Override 6524 public void setFormat(int format) { 6525 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 6526 } 6527 6528 @Override 6529 public void setType(int type) { 6530 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 6531 } 6532 6533 @Override 6534 public void onUpdateSurface() { 6535 // We take care of format and type changes on our own. 6536 throw new IllegalStateException("Shouldn't be here"); 6537 } 6538 6539 @Override 6540 public boolean isCreating() { 6541 return mIsCreating; 6542 } 6543 6544 @Override 6545 public void setFixedSize(int width, int height) { 6546 throw new UnsupportedOperationException( 6547 "Currently only support sizing from layout"); 6548 } 6549 6550 @Override 6551 public void setKeepScreenOn(boolean screenOn) { 6552 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 6553 } 6554 } 6555 6556 static class W extends IWindow.Stub { 6557 private final WeakReference<ViewRootImpl> mViewAncestor; 6558 private final IWindowSession mWindowSession; 6559 6560 W(ViewRootImpl viewAncestor) { 6561 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 6562 mWindowSession = viewAncestor.mWindowSession; 6563 } 6564 6565 @Override 6566 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 6567 Rect visibleInsets, Rect stableInsets, Rect outsets, boolean reportDraw, 6568 Configuration newConfig) { 6569 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6570 if (viewAncestor != null) { 6571 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 6572 visibleInsets, stableInsets, outsets, reportDraw, newConfig); 6573 } 6574 } 6575 6576 @Override 6577 public void moved(int newX, int newY) { 6578 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6579 if (viewAncestor != null) { 6580 viewAncestor.dispatchMoved(newX, newY); 6581 } 6582 } 6583 6584 @Override 6585 public void dispatchAppVisibility(boolean visible) { 6586 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6587 if (viewAncestor != null) { 6588 viewAncestor.dispatchAppVisibility(visible); 6589 } 6590 } 6591 6592 @Override 6593 public void dispatchGetNewSurface() { 6594 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6595 if (viewAncestor != null) { 6596 viewAncestor.dispatchGetNewSurface(); 6597 } 6598 } 6599 6600 @Override 6601 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6602 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6603 if (viewAncestor != null) { 6604 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 6605 } 6606 } 6607 6608 private static int checkCallingPermission(String permission) { 6609 try { 6610 return ActivityManagerNative.getDefault().checkPermission( 6611 permission, Binder.getCallingPid(), Binder.getCallingUid()); 6612 } catch (RemoteException e) { 6613 return PackageManager.PERMISSION_DENIED; 6614 } 6615 } 6616 6617 @Override 6618 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 6619 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6620 if (viewAncestor != null) { 6621 final View view = viewAncestor.mView; 6622 if (view != null) { 6623 if (checkCallingPermission(Manifest.permission.DUMP) != 6624 PackageManager.PERMISSION_GRANTED) { 6625 throw new SecurityException("Insufficient permissions to invoke" 6626 + " executeCommand() from pid=" + Binder.getCallingPid() 6627 + ", uid=" + Binder.getCallingUid()); 6628 } 6629 6630 OutputStream clientStream = null; 6631 try { 6632 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 6633 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 6634 } catch (IOException e) { 6635 e.printStackTrace(); 6636 } finally { 6637 if (clientStream != null) { 6638 try { 6639 clientStream.close(); 6640 } catch (IOException e) { 6641 e.printStackTrace(); 6642 } 6643 } 6644 } 6645 } 6646 } 6647 } 6648 6649 @Override 6650 public void closeSystemDialogs(String reason) { 6651 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6652 if (viewAncestor != null) { 6653 viewAncestor.dispatchCloseSystemDialogs(reason); 6654 } 6655 } 6656 6657 @Override 6658 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 6659 boolean sync) { 6660 if (sync) { 6661 try { 6662 mWindowSession.wallpaperOffsetsComplete(asBinder()); 6663 } catch (RemoteException e) { 6664 } 6665 } 6666 } 6667 6668 @Override 6669 public void dispatchWallpaperCommand(String action, int x, int y, 6670 int z, Bundle extras, boolean sync) { 6671 if (sync) { 6672 try { 6673 mWindowSession.wallpaperCommandComplete(asBinder(), null); 6674 } catch (RemoteException e) { 6675 } 6676 } 6677 } 6678 6679 /* Drag/drop */ 6680 @Override 6681 public void dispatchDragEvent(DragEvent event) { 6682 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6683 if (viewAncestor != null) { 6684 viewAncestor.dispatchDragEvent(event); 6685 } 6686 } 6687 6688 @Override 6689 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6690 int localValue, int localChanges) { 6691 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6692 if (viewAncestor != null) { 6693 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 6694 localValue, localChanges); 6695 } 6696 } 6697 6698 @Override 6699 public void onAnimationStarted(int remainingFrameCount) { 6700 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6701 if (viewAncestor != null) { 6702 viewAncestor.dispatchWindowAnimationStarted(remainingFrameCount); 6703 } 6704 } 6705 6706 @Override 6707 public void onAnimationStopped() { 6708 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6709 if (viewAncestor != null) { 6710 viewAncestor.dispatchWindowAnimationStopped(); 6711 } 6712 } 6713 6714 @Override 6715 public void dispatchWindowShown() { 6716 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6717 if (viewAncestor != null) { 6718 viewAncestor.dispatchWindowShown(); 6719 } 6720 } 6721 } 6722 6723 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 6724 public CalledFromWrongThreadException(String msg) { 6725 super(msg); 6726 } 6727 } 6728 6729 static RunQueue getRunQueue() { 6730 RunQueue rq = sRunQueues.get(); 6731 if (rq != null) { 6732 return rq; 6733 } 6734 rq = new RunQueue(); 6735 sRunQueues.set(rq); 6736 return rq; 6737 } 6738 6739 /** 6740 * The run queue is used to enqueue pending work from Views when no Handler is 6741 * attached. The work is executed during the next call to performTraversals on 6742 * the thread. 6743 * @hide 6744 */ 6745 static final class RunQueue { 6746 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 6747 6748 void post(Runnable action) { 6749 postDelayed(action, 0); 6750 } 6751 6752 void postDelayed(Runnable action, long delayMillis) { 6753 HandlerAction handlerAction = new HandlerAction(); 6754 handlerAction.action = action; 6755 handlerAction.delay = delayMillis; 6756 6757 synchronized (mActions) { 6758 mActions.add(handlerAction); 6759 } 6760 } 6761 6762 void removeCallbacks(Runnable action) { 6763 final HandlerAction handlerAction = new HandlerAction(); 6764 handlerAction.action = action; 6765 6766 synchronized (mActions) { 6767 final ArrayList<HandlerAction> actions = mActions; 6768 6769 while (actions.remove(handlerAction)) { 6770 // Keep going 6771 } 6772 } 6773 } 6774 6775 void executeActions(Handler handler) { 6776 synchronized (mActions) { 6777 final ArrayList<HandlerAction> actions = mActions; 6778 final int count = actions.size(); 6779 6780 for (int i = 0; i < count; i++) { 6781 final HandlerAction handlerAction = actions.get(i); 6782 handler.postDelayed(handlerAction.action, handlerAction.delay); 6783 } 6784 6785 actions.clear(); 6786 } 6787 } 6788 6789 private static class HandlerAction { 6790 Runnable action; 6791 long delay; 6792 6793 @Override 6794 public boolean equals(Object o) { 6795 if (this == o) return true; 6796 if (o == null || getClass() != o.getClass()) return false; 6797 6798 HandlerAction that = (HandlerAction) o; 6799 return !(action != null ? !action.equals(that.action) : that.action != null); 6800 6801 } 6802 6803 @Override 6804 public int hashCode() { 6805 int result = action != null ? action.hashCode() : 0; 6806 result = 31 * result + (int) (delay ^ (delay >>> 32)); 6807 return result; 6808 } 6809 } 6810 } 6811 6812 /** 6813 * Class for managing the accessibility interaction connection 6814 * based on the global accessibility state. 6815 */ 6816 final class AccessibilityInteractionConnectionManager 6817 implements AccessibilityStateChangeListener { 6818 @Override 6819 public void onAccessibilityStateChanged(boolean enabled) { 6820 if (enabled) { 6821 ensureConnection(); 6822 if (mAttachInfo.mHasWindowFocus) { 6823 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6824 View focusedView = mView.findFocus(); 6825 if (focusedView != null && focusedView != mView) { 6826 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6827 } 6828 } 6829 } else { 6830 ensureNoConnection(); 6831 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6832 } 6833 } 6834 6835 public void ensureConnection() { 6836 final boolean registered = 6837 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6838 if (!registered) { 6839 mAttachInfo.mAccessibilityWindowId = 6840 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6841 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6842 } 6843 } 6844 6845 public void ensureNoConnection() { 6846 final boolean registered = 6847 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6848 if (registered) { 6849 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6850 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6851 } 6852 } 6853 } 6854 6855 final class HighContrastTextManager implements HighTextContrastChangeListener { 6856 HighContrastTextManager() { 6857 mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled(); 6858 } 6859 @Override 6860 public void onHighTextContrastStateChanged(boolean enabled) { 6861 mAttachInfo.mHighContrastText = enabled; 6862 6863 // Destroy Displaylists so they can be recreated with high contrast recordings 6864 destroyHardwareResources(); 6865 6866 // Schedule redraw, which will rerecord + redraw all text 6867 invalidate(); 6868 } 6869 } 6870 6871 /** 6872 * This class is an interface this ViewAncestor provides to the 6873 * AccessibilityManagerService to the latter can interact with 6874 * the view hierarchy in this ViewAncestor. 6875 */ 6876 static final class AccessibilityInteractionConnection 6877 extends IAccessibilityInteractionConnection.Stub { 6878 private final WeakReference<ViewRootImpl> mViewRootImpl; 6879 6880 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6881 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6882 } 6883 6884 @Override 6885 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 6886 Region interactiveRegion, int interactionId, 6887 IAccessibilityInteractionConnectionCallback callback, int flags, 6888 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6889 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6890 if (viewRootImpl != null && viewRootImpl.mView != null) { 6891 viewRootImpl.getAccessibilityInteractionController() 6892 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 6893 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6894 interrogatingTid, spec); 6895 } else { 6896 // We cannot make the call and notify the caller so it does not wait. 6897 try { 6898 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6899 } catch (RemoteException re) { 6900 /* best effort - ignore */ 6901 } 6902 } 6903 } 6904 6905 @Override 6906 public void performAccessibilityAction(long accessibilityNodeId, int action, 6907 Bundle arguments, int interactionId, 6908 IAccessibilityInteractionConnectionCallback callback, int flags, 6909 int interrogatingPid, long interrogatingTid) { 6910 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6911 if (viewRootImpl != null && viewRootImpl.mView != null) { 6912 viewRootImpl.getAccessibilityInteractionController() 6913 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 6914 interactionId, callback, flags, interrogatingPid, interrogatingTid); 6915 } else { 6916 // We cannot make the call and notify the caller so it does not wait. 6917 try { 6918 callback.setPerformAccessibilityActionResult(false, interactionId); 6919 } catch (RemoteException re) { 6920 /* best effort - ignore */ 6921 } 6922 } 6923 } 6924 6925 @Override 6926 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 6927 String viewId, Region interactiveRegion, int interactionId, 6928 IAccessibilityInteractionConnectionCallback callback, int flags, 6929 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6930 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6931 if (viewRootImpl != null && viewRootImpl.mView != null) { 6932 viewRootImpl.getAccessibilityInteractionController() 6933 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 6934 viewId, interactiveRegion, interactionId, callback, flags, 6935 interrogatingPid, interrogatingTid, spec); 6936 } else { 6937 // We cannot make the call and notify the caller so it does not wait. 6938 try { 6939 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6940 } catch (RemoteException re) { 6941 /* best effort - ignore */ 6942 } 6943 } 6944 } 6945 6946 @Override 6947 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 6948 Region interactiveRegion, int interactionId, 6949 IAccessibilityInteractionConnectionCallback callback, int flags, 6950 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6951 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6952 if (viewRootImpl != null && viewRootImpl.mView != null) { 6953 viewRootImpl.getAccessibilityInteractionController() 6954 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 6955 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6956 interrogatingTid, spec); 6957 } else { 6958 // We cannot make the call and notify the caller so it does not wait. 6959 try { 6960 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6961 } catch (RemoteException re) { 6962 /* best effort - ignore */ 6963 } 6964 } 6965 } 6966 6967 @Override 6968 public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion, 6969 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6970 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6971 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6972 if (viewRootImpl != null && viewRootImpl.mView != null) { 6973 viewRootImpl.getAccessibilityInteractionController() 6974 .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion, 6975 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6976 spec); 6977 } else { 6978 // We cannot make the call and notify the caller so it does not wait. 6979 try { 6980 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6981 } catch (RemoteException re) { 6982 /* best effort - ignore */ 6983 } 6984 } 6985 } 6986 6987 @Override 6988 public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion, 6989 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6990 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6991 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6992 if (viewRootImpl != null && viewRootImpl.mView != null) { 6993 viewRootImpl.getAccessibilityInteractionController() 6994 .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion, 6995 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6996 spec); 6997 } else { 6998 // We cannot make the call and notify the caller so it does not wait. 6999 try { 7000 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7001 } catch (RemoteException re) { 7002 /* best effort - ignore */ 7003 } 7004 } 7005 } 7006 } 7007 7008 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 7009 private int mChangeTypes = 0; 7010 7011 public View mSource; 7012 public long mLastEventTimeMillis; 7013 7014 @Override 7015 public void run() { 7016 // The accessibility may be turned off while we were waiting so check again. 7017 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 7018 mLastEventTimeMillis = SystemClock.uptimeMillis(); 7019 AccessibilityEvent event = AccessibilityEvent.obtain(); 7020 event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 7021 event.setContentChangeTypes(mChangeTypes); 7022 mSource.sendAccessibilityEventUnchecked(event); 7023 } else { 7024 mLastEventTimeMillis = 0; 7025 } 7026 // In any case reset to initial state. 7027 mSource.resetSubtreeAccessibilityStateChanged(); 7028 mSource = null; 7029 mChangeTypes = 0; 7030 } 7031 7032 public void runOrPost(View source, int changeType) { 7033 if (mSource != null) { 7034 // If there is no common predecessor, then mSource points to 7035 // a removed view, hence in this case always prefer the source. 7036 View predecessor = getCommonPredecessor(mSource, source); 7037 mSource = (predecessor != null) ? predecessor : source; 7038 mChangeTypes |= changeType; 7039 return; 7040 } 7041 mSource = source; 7042 mChangeTypes = changeType; 7043 final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis; 7044 final long minEventIntevalMillis = 7045 ViewConfiguration.getSendRecurringAccessibilityEventsInterval(); 7046 if (timeSinceLastMillis >= minEventIntevalMillis) { 7047 mSource.removeCallbacks(this); 7048 run(); 7049 } else { 7050 mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis); 7051 } 7052 } 7053 } 7054} 7055