ViewRootImpl.java revision 41725dedc33906aaafee36b2d6523596e2a8a52e
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.Bundle; 44import android.os.Debug; 45import android.os.Handler; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.Process; 50import android.os.RemoteException; 51import android.os.SystemClock; 52import android.os.SystemProperties; 53import android.os.Trace; 54import android.util.AndroidRuntimeException; 55import android.util.DisplayMetrics; 56import android.util.Log; 57import android.util.Slog; 58import android.util.TimeUtils; 59import android.util.TypedValue; 60import android.view.Surface.OutOfResourcesException; 61import android.view.View.AttachInfo; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityManager; 65import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 66import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.R; 78import com.android.internal.os.SomeArgs; 79import com.android.internal.util.ScreenShapeHelper; 80import com.android.internal.view.BaseSurfaceHolder; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.FileDescriptor; 84import java.io.IOException; 85import java.io.OutputStream; 86import java.io.PrintWriter; 87import java.lang.ref.WeakReference; 88import java.util.ArrayList; 89import java.util.HashSet; 90 91/** 92 * The top of a view hierarchy, implementing the needed protocol between View 93 * and the WindowManager. This is for the most part an internal implementation 94 * detail of {@link WindowManagerGlobal}. 95 * 96 * {@hide} 97 */ 98@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 99public final class ViewRootImpl implements ViewParent, 100 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 101 private static final String TAG = "ViewRootImpl"; 102 private static final boolean DBG = false; 103 private static final boolean LOCAL_LOGV = false; 104 /** @noinspection PointlessBooleanExpression*/ 105 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 106 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 107 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 108 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 109 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 110 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 111 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 112 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 113 private static final boolean DEBUG_FPS = false; 114 private static final boolean DEBUG_INPUT_STAGES = false || LOCAL_LOGV; 115 116 /** 117 * Set this system property to true to force the view hierarchy to render 118 * at 60 Hz. This can be used to measure the potential framerate. 119 */ 120 private static final String PROPERTY_PROFILE_RENDERING = "viewroot.profile_rendering"; 121 122 // properties used by emulator to determine display shape 123 public static final String PROPERTY_EMULATOR_CIRCULAR = "ro.emulator.circular"; 124 public static final String PROPERTY_EMULATOR_WIN_OUTSET_BOTTOM_PX = 125 "ro.emu.win_outset_bottom_px"; 126 127 /** 128 * Maximum time we allow the user to roll the trackball enough to generate 129 * a key event, before resetting the counters. 130 */ 131 static final int MAX_TRACKBALL_DELAY = 250; 132 133 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 134 135 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 136 static boolean sFirstDrawComplete = false; 137 138 static final ArrayList<ComponentCallbacks> sConfigCallbacks 139 = new ArrayList<ComponentCallbacks>(); 140 141 final Context mContext; 142 final IWindowSession mWindowSession; 143 final Display mDisplay; 144 final DisplayManager mDisplayManager; 145 final String mBasePackageName; 146 147 final int[] mTmpLocation = new int[2]; 148 149 final TypedValue mTmpValue = new TypedValue(); 150 151 final Thread mThread; 152 153 final WindowLeaked mLocation; 154 155 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 156 157 final W mWindow; 158 159 final int mTargetSdkVersion; 160 161 int mSeq; 162 163 View mView; 164 165 View mAccessibilityFocusedHost; 166 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 167 168 int mViewVisibility; 169 boolean mAppVisible = true; 170 int mOrigWindowType = -1; 171 172 // Set to true if the owner of this window is in the stopped state, 173 // so the window should no longer be active. 174 boolean mStopped = false; 175 176 // Set to true to stop input during an Activity Transition. 177 boolean mPausedForTransition = false; 178 179 boolean mLastInCompatMode = false; 180 181 SurfaceHolder.Callback2 mSurfaceHolderCallback; 182 BaseSurfaceHolder mSurfaceHolder; 183 boolean mIsCreating; 184 boolean mDrawingAllowed; 185 186 final Region mTransparentRegion; 187 final Region mPreviousTransparentRegion; 188 189 int mWidth; 190 int mHeight; 191 Rect mDirty; 192 boolean mIsAnimating; 193 194 CompatibilityInfo.Translator mTranslator; 195 196 final View.AttachInfo mAttachInfo; 197 InputChannel mInputChannel; 198 InputQueue.Callback mInputQueueCallback; 199 InputQueue mInputQueue; 200 FallbackEventHandler mFallbackEventHandler; 201 Choreographer mChoreographer; 202 203 final Rect mTempRect; // used in the transaction to not thrash the heap. 204 final Rect mVisRect; // used to retrieve visible rect of focused view. 205 206 boolean mTraversalScheduled; 207 int mTraversalBarrier; 208 boolean mWillDrawSoon; 209 /** Set to true while in performTraversals for detecting when die(true) is called from internal 210 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 211 boolean mIsInTraversal; 212 boolean mApplyInsetsRequested; 213 boolean mLayoutRequested; 214 boolean mFirst; 215 boolean mReportNextDraw; 216 boolean mFullRedrawNeeded; 217 boolean mNewSurfaceNeeded; 218 boolean mHasHadWindowFocus; 219 boolean mLastWasImTarget; 220 boolean mWindowsAnimating; 221 boolean mDrawDuringWindowsAnimating; 222 boolean mIsDrawing; 223 int mLastSystemUiVisibility; 224 int mClientWindowLayoutFlags; 225 boolean mLastOverscanRequested; 226 227 // Pool of queued input events. 228 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 229 private QueuedInputEvent mQueuedInputEventPool; 230 private int mQueuedInputEventPoolSize; 231 232 /* Input event queue. 233 * Pending input events are input events waiting to be delivered to the input stages 234 * and handled by the application. 235 */ 236 QueuedInputEvent mPendingInputEventHead; 237 QueuedInputEvent mPendingInputEventTail; 238 int mPendingInputEventCount; 239 boolean mProcessInputEventsScheduled; 240 boolean mUnbufferedInputDispatch; 241 String mPendingInputEventQueueLengthCounterName = "pq"; 242 243 InputStage mFirstInputStage; 244 InputStage mFirstPostImeInputStage; 245 InputStage mSyntheticInputStage; 246 247 boolean mWindowAttributesChanged = false; 248 int mWindowAttributesChangesFlag = 0; 249 250 // These can be accessed by any thread, must be protected with a lock. 251 // Surface can never be reassigned or cleared (use Surface.clear()). 252 final Surface mSurface = new Surface(); 253 254 boolean mAdded; 255 boolean mAddedTouchMode; 256 257 final DisplayAdjustments mDisplayAdjustments; 258 259 // These are accessed by multiple threads. 260 final Rect mWinFrame; // frame given by window manager. 261 262 final Rect mPendingOverscanInsets = new Rect(); 263 final Rect mPendingVisibleInsets = new Rect(); 264 final Rect mPendingStableInsets = new Rect(); 265 final Rect mPendingContentInsets = new Rect(); 266 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 267 = new ViewTreeObserver.InternalInsetsInfo(); 268 269 final Rect mDispatchContentInsets = new Rect(); 270 final Rect mDispatchStableInsets = new Rect(); 271 272 private WindowInsets mLastWindowInsets; 273 274 final Configuration mLastConfiguration = new Configuration(); 275 final Configuration mPendingConfiguration = new Configuration(); 276 277 boolean mScrollMayChange; 278 int mSoftInputMode; 279 WeakReference<View> mLastScrolledFocus; 280 int mScrollY; 281 int mCurScrollY; 282 Scroller mScroller; 283 HardwareLayer mResizeBuffer; 284 long mResizeBufferStartTime; 285 int mResizeBufferDuration; 286 // Used to block the creation of the ResizeBuffer due to invalidations in 287 // the previous DisplayList tree that must prevent re-execution. 288 // Currently this means a functor was detached. 289 boolean mBlockResizeBuffer; 290 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 291 private ArrayList<LayoutTransition> mPendingTransitions; 292 293 final ViewConfiguration mViewConfiguration; 294 295 /* Drag/drop */ 296 ClipDescription mDragDescription; 297 View mCurrentDragView; 298 volatile Object mLocalDragState; 299 final PointF mDragPoint = new PointF(); 300 final PointF mLastTouchPoint = new PointF(); 301 302 private boolean mProfileRendering; 303 private Choreographer.FrameCallback mRenderProfiler; 304 private boolean mRenderProfilingEnabled; 305 306 // Variables to track frames per second, enabled via DEBUG_FPS flag 307 private long mFpsStartTime = -1; 308 private long mFpsPrevTime = -1; 309 private int mFpsNumFrames; 310 311 /** 312 * see {@link #playSoundEffect(int)} 313 */ 314 AudioManager mAudioManager; 315 316 final AccessibilityManager mAccessibilityManager; 317 318 AccessibilityInteractionController mAccessibilityInteractionController; 319 320 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 321 HighContrastTextManager mHighContrastTextManager; 322 323 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 324 325 HashSet<View> mTempHashSet; 326 327 private final int mDensity; 328 private final int mNoncompatDensity; 329 330 private boolean mInLayout = false; 331 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 332 boolean mHandlingLayoutInLayoutRequest = false; 333 334 private int mViewLayoutDirectionInitial; 335 336 /** Set to true once doDie() has been called. */ 337 private boolean mRemoved; 338 339 private final boolean mWindowIsRound; 340 341 /** 342 * Consistency verifier for debugging purposes. 343 */ 344 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 345 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 346 new InputEventConsistencyVerifier(this, 0) : null; 347 348 static final class SystemUiVisibilityInfo { 349 int seq; 350 int globalVisibility; 351 int localValue; 352 int localChanges; 353 } 354 355 public ViewRootImpl(Context context, Display display) { 356 mContext = context; 357 mWindowSession = WindowManagerGlobal.getWindowSession(); 358 mDisplay = display; 359 mBasePackageName = context.getBasePackageName(); 360 361 mDisplayAdjustments = display.getDisplayAdjustments(); 362 363 mThread = Thread.currentThread(); 364 mLocation = new WindowLeaked(null); 365 mLocation.fillInStackTrace(); 366 mWidth = -1; 367 mHeight = -1; 368 mDirty = new Rect(); 369 mTempRect = new Rect(); 370 mVisRect = new Rect(); 371 mWinFrame = new Rect(); 372 mWindow = new W(this); 373 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 374 mViewVisibility = View.GONE; 375 mTransparentRegion = new Region(); 376 mPreviousTransparentRegion = new Region(); 377 mFirst = true; // true for the first time the view is added 378 mAdded = false; 379 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 380 mAccessibilityManager = AccessibilityManager.getInstance(context); 381 mAccessibilityInteractionConnectionManager = 382 new AccessibilityInteractionConnectionManager(); 383 mAccessibilityManager.addAccessibilityStateChangeListener( 384 mAccessibilityInteractionConnectionManager); 385 mHighContrastTextManager = new HighContrastTextManager(); 386 mAccessibilityManager.addHighTextContrastStateChangeListener( 387 mHighContrastTextManager); 388 mViewConfiguration = ViewConfiguration.get(context); 389 mDensity = context.getResources().getDisplayMetrics().densityDpi; 390 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 391 mFallbackEventHandler = new PhoneFallbackEventHandler(context); 392 mChoreographer = Choreographer.getInstance(); 393 mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE); 394 loadSystemProperties(); 395 mWindowIsRound = ScreenShapeHelper.getWindowIsRound(context.getResources()); 396 } 397 398 public static void addFirstDrawHandler(Runnable callback) { 399 synchronized (sFirstDrawHandlers) { 400 if (!sFirstDrawComplete) { 401 sFirstDrawHandlers.add(callback); 402 } 403 } 404 } 405 406 public static void addConfigCallback(ComponentCallbacks callback) { 407 synchronized (sConfigCallbacks) { 408 sConfigCallbacks.add(callback); 409 } 410 } 411 412 // FIXME for perf testing only 413 private boolean mProfile = false; 414 415 /** 416 * Call this to profile the next traversal call. 417 * FIXME for perf testing only. Remove eventually 418 */ 419 public void profile() { 420 mProfile = true; 421 } 422 423 /** 424 * Indicates whether we are in touch mode. Calling this method triggers an IPC 425 * call and should be avoided whenever possible. 426 * 427 * @return True, if the device is in touch mode, false otherwise. 428 * 429 * @hide 430 */ 431 static boolean isInTouchMode() { 432 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 433 if (windowSession != null) { 434 try { 435 return windowSession.getInTouchMode(); 436 } catch (RemoteException e) { 437 } 438 } 439 return false; 440 } 441 442 /** 443 * We have one child 444 */ 445 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 446 synchronized (this) { 447 if (mView == null) { 448 mView = view; 449 450 mAttachInfo.mDisplayState = mDisplay.getState(); 451 mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); 452 453 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 454 mFallbackEventHandler.setView(view); 455 mWindowAttributes.copyFrom(attrs); 456 if (mWindowAttributes.packageName == null) { 457 mWindowAttributes.packageName = mBasePackageName; 458 } 459 attrs = mWindowAttributes; 460 // Keep track of the actual window flags supplied by the client. 461 mClientWindowLayoutFlags = attrs.flags; 462 463 setAccessibilityFocus(null, null); 464 465 if (view instanceof RootViewSurfaceTaker) { 466 mSurfaceHolderCallback = 467 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 468 if (mSurfaceHolderCallback != null) { 469 mSurfaceHolder = new TakenSurfaceHolder(); 470 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 471 } 472 } 473 474 // Compute surface insets required to draw at specified Z value. 475 // TODO: Use real shadow insets for a constant max Z. 476 if (!attrs.hasManualSurfaceInsets) { 477 final int surfaceInset = (int) Math.ceil(view.getZ() * 2); 478 attrs.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset); 479 } 480 481 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 482 mTranslator = compatibilityInfo.getTranslator(); 483 484 // If the application owns the surface, don't enable hardware acceleration 485 if (mSurfaceHolder == null) { 486 enableHardwareAcceleration(attrs); 487 } 488 489 boolean restore = false; 490 if (mTranslator != null) { 491 mSurface.setCompatibilityTranslator(mTranslator); 492 restore = true; 493 attrs.backup(); 494 mTranslator.translateWindowLayout(attrs); 495 } 496 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 497 498 if (!compatibilityInfo.supportsScreen()) { 499 attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 500 mLastInCompatMode = true; 501 } 502 503 mSoftInputMode = attrs.softInputMode; 504 mWindowAttributesChanged = true; 505 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 506 mAttachInfo.mRootView = view; 507 mAttachInfo.mScalingRequired = mTranslator != null; 508 mAttachInfo.mApplicationScale = 509 mTranslator == null ? 1.0f : mTranslator.applicationScale; 510 if (panelParentView != null) { 511 mAttachInfo.mPanelParentWindowToken 512 = panelParentView.getApplicationWindowToken(); 513 } 514 mAdded = true; 515 int res; /* = WindowManagerImpl.ADD_OKAY; */ 516 517 // Schedule the first layout -before- adding to the window 518 // manager, to make sure we do the relayout before receiving 519 // any other events from the system. 520 requestLayout(); 521 if ((mWindowAttributes.inputFeatures 522 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 523 mInputChannel = new InputChannel(); 524 } 525 try { 526 mOrigWindowType = mWindowAttributes.type; 527 mAttachInfo.mRecomputeGlobalAttributes = true; 528 collectViewAttributes(); 529 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 530 getHostVisibility(), mDisplay.getDisplayId(), 531 mAttachInfo.mContentInsets, mAttachInfo.mStableInsets, mInputChannel); 532 } catch (RemoteException e) { 533 mAdded = false; 534 mView = null; 535 mAttachInfo.mRootView = null; 536 mInputChannel = null; 537 mFallbackEventHandler.setView(null); 538 unscheduleTraversals(); 539 setAccessibilityFocus(null, null); 540 throw new RuntimeException("Adding window failed", e); 541 } finally { 542 if (restore) { 543 attrs.restore(); 544 } 545 } 546 547 if (mTranslator != null) { 548 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 549 } 550 mPendingOverscanInsets.set(0, 0, 0, 0); 551 mPendingContentInsets.set(mAttachInfo.mContentInsets); 552 mPendingStableInsets.set(mAttachInfo.mStableInsets); 553 mPendingVisibleInsets.set(0, 0, 0, 0); 554 try { 555 relayoutWindow(attrs, getHostVisibility(), false); 556 } catch (RemoteException e) { 557 if (DEBUG_LAYOUT) Log.e(TAG, "failed to relayoutWindow", e); 558 } 559 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 560 if (res < WindowManagerGlobal.ADD_OKAY) { 561 mAttachInfo.mRootView = null; 562 mAdded = false; 563 mFallbackEventHandler.setView(null); 564 unscheduleTraversals(); 565 setAccessibilityFocus(null, null); 566 switch (res) { 567 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 568 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 569 throw new WindowManager.BadTokenException( 570 "Unable to add window -- token " + attrs.token 571 + " is not valid; is your activity running?"); 572 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 573 throw new WindowManager.BadTokenException( 574 "Unable to add window -- token " + attrs.token 575 + " is not for an application"); 576 case WindowManagerGlobal.ADD_APP_EXITING: 577 throw new WindowManager.BadTokenException( 578 "Unable to add window -- app for token " + attrs.token 579 + " is exiting"); 580 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 581 throw new WindowManager.BadTokenException( 582 "Unable to add window -- window " + mWindow 583 + " has already been added"); 584 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 585 // Silently ignore -- we would have just removed it 586 // right away, anyway. 587 return; 588 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 589 throw new WindowManager.BadTokenException( 590 "Unable to add window " + mWindow + 591 " -- another window of this type already exists"); 592 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 593 throw new WindowManager.BadTokenException( 594 "Unable to add window " + mWindow + 595 " -- permission denied for this window type"); 596 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 597 throw new WindowManager.InvalidDisplayException( 598 "Unable to add window " + mWindow + 599 " -- the specified display can not be found"); 600 case WindowManagerGlobal.ADD_INVALID_TYPE: 601 throw new WindowManager.InvalidDisplayException( 602 "Unable to add window " + mWindow 603 + " -- the specified window type is not valid"); 604 } 605 throw new RuntimeException( 606 "Unable to add window -- unknown error code " + res); 607 } 608 609 if (view instanceof RootViewSurfaceTaker) { 610 mInputQueueCallback = 611 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 612 } 613 if (mInputChannel != null) { 614 if (mInputQueueCallback != null) { 615 mInputQueue = new InputQueue(); 616 mInputQueueCallback.onInputQueueCreated(mInputQueue); 617 } 618 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 619 Looper.myLooper()); 620 } 621 622 view.assignParent(this); 623 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 624 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 625 626 if (mAccessibilityManager.isEnabled()) { 627 mAccessibilityInteractionConnectionManager.ensureConnection(); 628 } 629 630 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 631 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 632 } 633 634 // Set up the input pipeline. 635 CharSequence counterSuffix = attrs.getTitle(); 636 mSyntheticInputStage = new SyntheticInputStage(); 637 InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage); 638 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 639 "aq:native-post-ime:" + counterSuffix); 640 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 641 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 642 "aq:ime:" + counterSuffix); 643 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 644 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 645 "aq:native-pre-ime:" + counterSuffix); 646 647 mFirstInputStage = nativePreImeStage; 648 mFirstPostImeInputStage = earlyPostImeStage; 649 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 650 } 651 } 652 } 653 654 /** Whether the window is in local focus mode or not */ 655 private boolean isInLocalFocusMode() { 656 return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0; 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 // TODO: Make the resize buffer some other way to not need this block 672 mBlockResizeBuffer = true; 673 if (mAttachInfo.mHardwareRenderer != null) { 674 // Fence so that any pending invokeFunctor() messages will be processed 675 // before we return from detachFunctor. 676 mAttachInfo.mHardwareRenderer.stopDrawing(); 677 } 678 } 679 680 /** 681 * Schedules the functor for execution in either kModeProcess or 682 * kModeProcessNoContext, depending on whether or not there is an EGLContext. 683 * 684 * @param functor The native functor to invoke 685 * @param waitForCompletion If true, this will not return until the functor 686 * has invoked. If false, the functor may be invoked 687 * asynchronously. 688 */ 689 public void invokeFunctor(long functor, boolean waitForCompletion) { 690 ThreadedRenderer.invokeFunctor(functor, waitForCompletion); 691 } 692 693 public void registerAnimatingRenderNode(RenderNode animator) { 694 if (mAttachInfo.mHardwareRenderer != null) { 695 mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator); 696 } else { 697 if (mAttachInfo.mPendingAnimatingRenderNodes == null) { 698 mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>(); 699 } 700 mAttachInfo.mPendingAnimatingRenderNodes.add(animator); 701 } 702 } 703 704 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 705 mAttachInfo.mHardwareAccelerated = false; 706 mAttachInfo.mHardwareAccelerationRequested = false; 707 708 // Don't enable hardware acceleration when the application is in compatibility mode 709 if (mTranslator != null) return; 710 711 // Try to enable hardware acceleration if requested 712 final boolean hardwareAccelerated = 713 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 714 715 if (hardwareAccelerated) { 716 if (!HardwareRenderer.isAvailable()) { 717 return; 718 } 719 720 // Persistent processes (including the system) should not do 721 // accelerated rendering on low-end devices. In that case, 722 // sRendererDisabled will be set. In addition, the system process 723 // itself should never do accelerated rendering. In that case, both 724 // sRendererDisabled and sSystemRendererDisabled are set. When 725 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 726 // can be used by code on the system process to escape that and enable 727 // HW accelerated drawing. (This is basically for the lock screen.) 728 729 final boolean fakeHwAccelerated = (attrs.privateFlags & 730 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 731 final boolean forceHwAccelerated = (attrs.privateFlags & 732 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 733 734 if (fakeHwAccelerated) { 735 // This is exclusively for the preview windows the window manager 736 // shows for launching applications, so they will look more like 737 // the app being launched. 738 mAttachInfo.mHardwareAccelerationRequested = true; 739 } else if (!HardwareRenderer.sRendererDisabled 740 || (HardwareRenderer.sSystemRendererDisabled && forceHwAccelerated)) { 741 if (mAttachInfo.mHardwareRenderer != null) { 742 mAttachInfo.mHardwareRenderer.destroy(); 743 } 744 745 final Rect insets = attrs.surfaceInsets; 746 final boolean hasSurfaceInsets = insets.left != 0 || insets.right != 0 747 || insets.top != 0 || insets.bottom != 0; 748 final boolean translucent = attrs.format != PixelFormat.OPAQUE || hasSurfaceInsets; 749 mAttachInfo.mHardwareRenderer = HardwareRenderer.create(mContext, translucent); 750 if (mAttachInfo.mHardwareRenderer != null) { 751 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 752 mAttachInfo.mHardwareAccelerated = 753 mAttachInfo.mHardwareAccelerationRequested = true; 754 } 755 } 756 } 757 } 758 759 public View getView() { 760 return mView; 761 } 762 763 final WindowLeaked getLocation() { 764 return mLocation; 765 } 766 767 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 768 synchronized (this) { 769 final int oldInsetLeft = mWindowAttributes.surfaceInsets.left; 770 final int oldInsetTop = mWindowAttributes.surfaceInsets.top; 771 final int oldInsetRight = mWindowAttributes.surfaceInsets.right; 772 final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom; 773 final int oldSoftInputMode = mWindowAttributes.softInputMode; 774 final boolean oldHasManualSurfaceInsets = mWindowAttributes.hasManualSurfaceInsets; 775 776 // Keep track of the actual window flags supplied by the client. 777 mClientWindowLayoutFlags = attrs.flags; 778 779 // Preserve compatible window flag if exists. 780 final int compatibleWindowFlag = mWindowAttributes.privateFlags 781 & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 782 783 // Transfer over system UI visibility values as they carry current state. 784 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 785 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 786 787 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 788 if ((mWindowAttributesChangesFlag 789 & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) { 790 // Recompute system ui visibility. 791 mAttachInfo.mRecomputeGlobalAttributes = true; 792 } 793 if (mWindowAttributes.packageName == null) { 794 mWindowAttributes.packageName = mBasePackageName; 795 } 796 mWindowAttributes.privateFlags |= compatibleWindowFlag; 797 798 // Restore old surface insets. 799 mWindowAttributes.surfaceInsets.set( 800 oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom); 801 mWindowAttributes.hasManualSurfaceInsets = oldHasManualSurfaceInsets; 802 803 applyKeepScreenOnFlag(mWindowAttributes); 804 805 if (newView) { 806 mSoftInputMode = attrs.softInputMode; 807 requestLayout(); 808 } 809 810 // Don't lose the mode we last auto-computed. 811 if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 812 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 813 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 814 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 815 | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 816 } 817 818 mWindowAttributesChanged = true; 819 scheduleTraversals(); 820 } 821 } 822 823 void handleAppVisibility(boolean visible) { 824 if (mAppVisible != visible) { 825 mAppVisible = visible; 826 scheduleTraversals(); 827 if (!mAppVisible) { 828 WindowManagerGlobal.trimForeground(); 829 } 830 } 831 } 832 833 void handleGetNewSurface() { 834 mNewSurfaceNeeded = true; 835 mFullRedrawNeeded = true; 836 scheduleTraversals(); 837 } 838 839 private final DisplayListener mDisplayListener = new DisplayListener() { 840 @Override 841 public void onDisplayChanged(int displayId) { 842 if (mView != null && mDisplay.getDisplayId() == displayId) { 843 final int oldDisplayState = mAttachInfo.mDisplayState; 844 final int newDisplayState = mDisplay.getState(); 845 if (oldDisplayState != newDisplayState) { 846 mAttachInfo.mDisplayState = newDisplayState; 847 pokeDrawLockIfNeeded(); 848 if (oldDisplayState != Display.STATE_UNKNOWN) { 849 final int oldScreenState = toViewScreenState(oldDisplayState); 850 final int newScreenState = toViewScreenState(newDisplayState); 851 if (oldScreenState != newScreenState) { 852 mView.dispatchScreenStateChanged(newScreenState); 853 } 854 if (oldDisplayState == Display.STATE_OFF) { 855 // Draw was suppressed so we need to for it to happen here. 856 mFullRedrawNeeded = true; 857 scheduleTraversals(); 858 } 859 } 860 } 861 } 862 } 863 864 @Override 865 public void onDisplayRemoved(int displayId) { 866 } 867 868 @Override 869 public void onDisplayAdded(int displayId) { 870 } 871 872 private int toViewScreenState(int displayState) { 873 return displayState == Display.STATE_OFF ? 874 View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON; 875 } 876 }; 877 878 void pokeDrawLockIfNeeded() { 879 final int displayState = mAttachInfo.mDisplayState; 880 if (mView != null && mAdded && mTraversalScheduled 881 && (displayState == Display.STATE_DOZE 882 || displayState == Display.STATE_DOZE_SUSPEND)) { 883 try { 884 mWindowSession.pokeDrawLock(mWindow); 885 } catch (RemoteException ex) { 886 // System server died, oh well. 887 } 888 } 889 } 890 891 @Override 892 public void requestFitSystemWindows() { 893 checkThread(); 894 mApplyInsetsRequested = true; 895 scheduleTraversals(); 896 } 897 898 @Override 899 public void requestLayout() { 900 if (!mHandlingLayoutInLayoutRequest) { 901 checkThread(); 902 mLayoutRequested = true; 903 scheduleTraversals(); 904 } 905 } 906 907 @Override 908 public boolean isLayoutRequested() { 909 return mLayoutRequested; 910 } 911 912 void invalidate() { 913 mDirty.set(0, 0, mWidth, mHeight); 914 if (!mWillDrawSoon) { 915 scheduleTraversals(); 916 } 917 } 918 919 void invalidateWorld(View view) { 920 view.invalidate(); 921 if (view instanceof ViewGroup) { 922 ViewGroup parent = (ViewGroup) view; 923 for (int i = 0; i < parent.getChildCount(); i++) { 924 invalidateWorld(parent.getChildAt(i)); 925 } 926 } 927 } 928 929 @Override 930 public void invalidateChild(View child, Rect dirty) { 931 invalidateChildInParent(null, dirty); 932 } 933 934 @Override 935 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 936 checkThread(); 937 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 938 939 if (dirty == null) { 940 invalidate(); 941 return null; 942 } else if (dirty.isEmpty() && !mIsAnimating) { 943 return null; 944 } 945 946 if (mCurScrollY != 0 || mTranslator != null) { 947 mTempRect.set(dirty); 948 dirty = mTempRect; 949 if (mCurScrollY != 0) { 950 dirty.offset(0, -mCurScrollY); 951 } 952 if (mTranslator != null) { 953 mTranslator.translateRectInAppWindowToScreen(dirty); 954 } 955 if (mAttachInfo.mScalingRequired) { 956 dirty.inset(-1, -1); 957 } 958 } 959 960 final Rect localDirty = mDirty; 961 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 962 mAttachInfo.mSetIgnoreDirtyState = true; 963 mAttachInfo.mIgnoreDirtyState = true; 964 } 965 966 // Add the new dirty rect to the current one 967 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 968 // Intersect with the bounds of the window to skip 969 // updates that lie outside of the visible region 970 final float appScale = mAttachInfo.mApplicationScale; 971 final boolean intersected = localDirty.intersect(0, 0, 972 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 973 if (!intersected) { 974 localDirty.setEmpty(); 975 } 976 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 977 scheduleTraversals(); 978 } 979 980 return null; 981 } 982 983 void setWindowStopped(boolean stopped) { 984 if (mStopped != stopped) { 985 mStopped = stopped; 986 if (!mStopped) { 987 scheduleTraversals(); 988 } 989 } 990 } 991 992 /** 993 * Block the input events during an Activity Transition. The KEYCODE_BACK event is allowed 994 * through to allow quick reversal of the Activity Transition. 995 * 996 * @param paused true to pause, false to resume. 997 */ 998 public void setPausedForTransition(boolean paused) { 999 mPausedForTransition = paused; 1000 } 1001 1002 @Override 1003 public ViewParent getParent() { 1004 return null; 1005 } 1006 1007 @Override 1008 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 1009 if (child != mView) { 1010 throw new RuntimeException("child is not mine, honest!"); 1011 } 1012 // Note: don't apply scroll offset, because we want to know its 1013 // visibility in the virtual canvas being given to the view hierarchy. 1014 return r.intersect(0, 0, mWidth, mHeight); 1015 } 1016 1017 @Override 1018 public void bringChildToFront(View child) { 1019 } 1020 1021 int getHostVisibility() { 1022 return mAppVisible ? mView.getVisibility() : View.GONE; 1023 } 1024 1025 void disposeResizeBuffer() { 1026 if (mResizeBuffer != null) { 1027 mResizeBuffer.destroy(); 1028 mResizeBuffer = null; 1029 } 1030 } 1031 1032 /** 1033 * Add LayoutTransition to the list of transitions to be started in the next traversal. 1034 * This list will be cleared after the transitions on the list are start()'ed. These 1035 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 1036 * happens during the layout phase of traversal, which we want to complete before any of the 1037 * animations are started (because those animations may side-effect properties that layout 1038 * depends upon, like the bounding rectangles of the affected views). So we add the transition 1039 * to the list and it is started just prior to starting the drawing phase of traversal. 1040 * 1041 * @param transition The LayoutTransition to be started on the next traversal. 1042 * 1043 * @hide 1044 */ 1045 public void requestTransitionStart(LayoutTransition transition) { 1046 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 1047 if (mPendingTransitions == null) { 1048 mPendingTransitions = new ArrayList<LayoutTransition>(); 1049 } 1050 mPendingTransitions.add(transition); 1051 } 1052 } 1053 1054 /** 1055 * Notifies the HardwareRenderer that a new frame will be coming soon. 1056 * Currently only {@link ThreadedRenderer} cares about this, and uses 1057 * this knowledge to adjust the scheduling of off-thread animations 1058 */ 1059 void notifyRendererOfFramePending() { 1060 if (mAttachInfo.mHardwareRenderer != null) { 1061 mAttachInfo.mHardwareRenderer.notifyFramePending(); 1062 } 1063 } 1064 1065 void scheduleTraversals() { 1066 if (!mTraversalScheduled) { 1067 mTraversalScheduled = true; 1068 mTraversalBarrier = mHandler.getLooper().getQueue().postSyncBarrier(); 1069 mChoreographer.postCallback( 1070 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1071 if (!mUnbufferedInputDispatch) { 1072 scheduleConsumeBatchedInput(); 1073 } 1074 notifyRendererOfFramePending(); 1075 pokeDrawLockIfNeeded(); 1076 } 1077 } 1078 1079 void unscheduleTraversals() { 1080 if (mTraversalScheduled) { 1081 mTraversalScheduled = false; 1082 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1083 mChoreographer.removeCallbacks( 1084 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1085 } 1086 } 1087 1088 void doTraversal() { 1089 if (mTraversalScheduled) { 1090 mTraversalScheduled = false; 1091 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1092 1093 if (mProfile) { 1094 Debug.startMethodTracing("ViewAncestor"); 1095 } 1096 1097 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1098 try { 1099 performTraversals(); 1100 } finally { 1101 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1102 } 1103 1104 if (mProfile) { 1105 Debug.stopMethodTracing(); 1106 mProfile = false; 1107 } 1108 } 1109 } 1110 1111 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1112 // Update window's global keep screen on flag: if a view has requested 1113 // that the screen be kept on, then it is always set; otherwise, it is 1114 // set to whatever the client last requested for the global state. 1115 if (mAttachInfo.mKeepScreenOn) { 1116 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1117 } else { 1118 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1119 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1120 } 1121 } 1122 1123 private boolean collectViewAttributes() { 1124 if (mAttachInfo.mRecomputeGlobalAttributes) { 1125 //Log.i(TAG, "Computing view hierarchy attributes!"); 1126 mAttachInfo.mRecomputeGlobalAttributes = false; 1127 boolean oldScreenOn = mAttachInfo.mKeepScreenOn; 1128 mAttachInfo.mKeepScreenOn = false; 1129 mAttachInfo.mSystemUiVisibility = 0; 1130 mAttachInfo.mHasSystemUiListeners = false; 1131 mView.dispatchCollectViewAttributes(mAttachInfo, 0); 1132 mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility; 1133 WindowManager.LayoutParams params = mWindowAttributes; 1134 mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params); 1135 if (mAttachInfo.mKeepScreenOn != oldScreenOn 1136 || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1137 || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1138 applyKeepScreenOnFlag(params); 1139 params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1140 params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners; 1141 mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility); 1142 return true; 1143 } 1144 } 1145 return false; 1146 } 1147 1148 private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) { 1149 int vis = 0; 1150 // Translucent decor window flags imply stable system ui visibility. 1151 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) { 1152 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; 1153 } 1154 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) { 1155 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 1156 } 1157 return vis; 1158 } 1159 1160 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1161 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1162 int childWidthMeasureSpec; 1163 int childHeightMeasureSpec; 1164 boolean windowSizeMayChange = false; 1165 1166 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1167 "Measuring " + host + " in display " + desiredWindowWidth 1168 + "x" + desiredWindowHeight + "..."); 1169 1170 boolean goodMeasure = false; 1171 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1172 // On large screens, we don't want to allow dialogs to just 1173 // stretch to fill the entire width of the screen to display 1174 // one line of text. First try doing the layout at a smaller 1175 // size to see if it will fit. 1176 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1177 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1178 int baseSize = 0; 1179 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1180 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1181 } 1182 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1183 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1184 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1185 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1186 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1187 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1188 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1189 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1190 goodMeasure = true; 1191 } else { 1192 // Didn't fit in that size... try expanding a bit. 1193 baseSize = (baseSize+desiredWindowWidth)/2; 1194 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1195 + baseSize); 1196 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1197 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1198 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1199 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1200 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1201 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1202 goodMeasure = true; 1203 } 1204 } 1205 } 1206 } 1207 1208 if (!goodMeasure) { 1209 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1210 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1211 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1212 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1213 windowSizeMayChange = true; 1214 } 1215 } 1216 1217 if (DBG) { 1218 System.out.println("======================================"); 1219 System.out.println("performTraversals -- after measure"); 1220 host.debug(); 1221 } 1222 1223 return windowSizeMayChange; 1224 } 1225 1226 /** 1227 * Modifies the input matrix such that it maps view-local coordinates to 1228 * on-screen coordinates. 1229 * 1230 * @param m input matrix to modify 1231 */ 1232 void transformMatrixToGlobal(Matrix m) { 1233 m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 1234 } 1235 1236 /** 1237 * Modifies the input matrix such that it maps on-screen coordinates to 1238 * view-local coordinates. 1239 * 1240 * @param m input matrix to modify 1241 */ 1242 void transformMatrixToLocal(Matrix m) { 1243 m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 1244 } 1245 1246 /* package */ WindowInsets getWindowInsets(boolean forceConstruct) { 1247 if (mLastWindowInsets == null || forceConstruct) { 1248 mDispatchContentInsets.set(mAttachInfo.mContentInsets); 1249 mDispatchStableInsets.set(mAttachInfo.mStableInsets); 1250 Rect contentInsets = mDispatchContentInsets; 1251 Rect stableInsets = mDispatchStableInsets; 1252 // For dispatch we preserve old logic, but for direct requests from Views we allow to 1253 // immediately use pending insets. 1254 if (!forceConstruct 1255 && (!mPendingContentInsets.equals(contentInsets) || 1256 !mPendingStableInsets.equals(stableInsets))) { 1257 contentInsets = mPendingContentInsets; 1258 stableInsets = mPendingStableInsets; 1259 } 1260 mLastWindowInsets = new WindowInsets(contentInsets, 1261 null /* windowDecorInsets */, stableInsets, mWindowIsRound); 1262 } 1263 return mLastWindowInsets; 1264 } 1265 1266 void dispatchApplyInsets(View host) { 1267 host.dispatchApplyWindowInsets(getWindowInsets(true /* forceConstruct */)); 1268 } 1269 1270 private void performTraversals() { 1271 // cache mView since it is used so much below... 1272 final View host = mView; 1273 1274 if (DBG) { 1275 System.out.println("======================================"); 1276 System.out.println("performTraversals"); 1277 host.debug(); 1278 } 1279 1280 if (host == null || !mAdded) 1281 return; 1282 1283 mIsInTraversal = true; 1284 mWillDrawSoon = true; 1285 boolean windowSizeMayChange = false; 1286 boolean newSurface = false; 1287 boolean surfaceChanged = false; 1288 WindowManager.LayoutParams lp = mWindowAttributes; 1289 1290 int desiredWindowWidth; 1291 int desiredWindowHeight; 1292 1293 final int viewVisibility = getHostVisibility(); 1294 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1295 || mNewSurfaceNeeded; 1296 1297 WindowManager.LayoutParams params = null; 1298 if (mWindowAttributesChanged) { 1299 mWindowAttributesChanged = false; 1300 surfaceChanged = true; 1301 params = lp; 1302 } 1303 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 1304 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1305 params = lp; 1306 mFullRedrawNeeded = true; 1307 mLayoutRequested = true; 1308 if (mLastInCompatMode) { 1309 params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1310 mLastInCompatMode = false; 1311 } else { 1312 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1313 mLastInCompatMode = true; 1314 } 1315 } 1316 1317 mWindowAttributesChangesFlag = 0; 1318 1319 Rect frame = mWinFrame; 1320 if (mFirst) { 1321 mFullRedrawNeeded = true; 1322 mLayoutRequested = true; 1323 1324 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1325 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1326 // NOTE -- system code, won't try to do compat mode. 1327 Point size = new Point(); 1328 mDisplay.getRealSize(size); 1329 desiredWindowWidth = size.x; 1330 desiredWindowHeight = size.y; 1331 } else { 1332 DisplayMetrics packageMetrics = 1333 mView.getContext().getResources().getDisplayMetrics(); 1334 desiredWindowWidth = packageMetrics.widthPixels; 1335 desiredWindowHeight = packageMetrics.heightPixels; 1336 } 1337 1338 // We used to use the following condition to choose 32 bits drawing caches: 1339 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1340 // However, windows are now always 32 bits by default, so choose 32 bits 1341 mAttachInfo.mUse32BitDrawingCache = true; 1342 mAttachInfo.mHasWindowFocus = false; 1343 mAttachInfo.mWindowVisibility = viewVisibility; 1344 mAttachInfo.mRecomputeGlobalAttributes = false; 1345 viewVisibilityChanged = false; 1346 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1347 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1348 // Set the layout direction if it has not been set before (inherit is the default) 1349 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1350 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1351 } 1352 host.dispatchAttachedToWindow(mAttachInfo, 0); 1353 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1354 dispatchApplyInsets(host); 1355 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1356 1357 } else { 1358 desiredWindowWidth = frame.width(); 1359 desiredWindowHeight = frame.height(); 1360 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1361 if (DEBUG_ORIENTATION) Log.v(TAG, 1362 "View " + host + " resized to: " + frame); 1363 mFullRedrawNeeded = true; 1364 mLayoutRequested = true; 1365 windowSizeMayChange = true; 1366 } 1367 } 1368 1369 if (viewVisibilityChanged) { 1370 mAttachInfo.mWindowVisibility = viewVisibility; 1371 host.dispatchWindowVisibilityChanged(viewVisibility); 1372 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1373 destroyHardwareResources(); 1374 } 1375 if (viewVisibility == View.GONE) { 1376 // After making a window gone, we will count it as being 1377 // shown for the first time the next time it gets focus. 1378 mHasHadWindowFocus = false; 1379 } 1380 } 1381 1382 // Non-visible windows can't hold accessibility focus. 1383 if (mAttachInfo.mWindowVisibility != View.VISIBLE) { 1384 host.clearAccessibilityFocus(); 1385 } 1386 1387 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1388 getRunQueue().executeActions(mAttachInfo.mHandler); 1389 1390 boolean insetsChanged = false; 1391 1392 boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw); 1393 if (layoutRequested) { 1394 1395 final Resources res = mView.getContext().getResources(); 1396 1397 if (mFirst) { 1398 // make sure touch mode code executes by setting cached value 1399 // to opposite of the added touch mode. 1400 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1401 ensureTouchModeLocally(mAddedTouchMode); 1402 } else { 1403 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1404 insetsChanged = true; 1405 } 1406 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1407 insetsChanged = true; 1408 } 1409 if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) { 1410 insetsChanged = true; 1411 } 1412 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1413 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1414 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1415 + mAttachInfo.mVisibleInsets); 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 if (!mDrawDuringWindowsAnimating && 1568 (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1569 mWindowsAnimating = true; 1570 } 1571 1572 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1573 + " overscan=" + mPendingOverscanInsets.toShortString() 1574 + " content=" + mPendingContentInsets.toShortString() 1575 + " visible=" + mPendingVisibleInsets.toShortString() 1576 + " visible=" + mPendingStableInsets.toShortString() 1577 + " surface=" + mSurface); 1578 1579 if (mPendingConfiguration.seq != 0) { 1580 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1581 + mPendingConfiguration); 1582 updateConfiguration(mPendingConfiguration, !mFirst); 1583 mPendingConfiguration.seq = 0; 1584 } 1585 1586 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1587 mAttachInfo.mOverscanInsets); 1588 contentInsetsChanged = !mPendingContentInsets.equals( 1589 mAttachInfo.mContentInsets); 1590 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1591 mAttachInfo.mVisibleInsets); 1592 final boolean stableInsetsChanged = !mPendingStableInsets.equals( 1593 mAttachInfo.mStableInsets); 1594 if (contentInsetsChanged) { 1595 if (mWidth > 0 && mHeight > 0 && lp != null && 1596 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1597 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1598 mSurface != null && mSurface.isValid() && 1599 !mAttachInfo.mTurnOffWindowResizeAnim && 1600 mAttachInfo.mHardwareRenderer != null && 1601 mAttachInfo.mHardwareRenderer.isEnabled() && 1602 lp != null && !PixelFormat.formatHasAlpha(lp.format) 1603 && !mBlockResizeBuffer) { 1604 1605 disposeResizeBuffer(); 1606 1607// TODO: Again.... 1608// if (mResizeBuffer == null) { 1609// mResizeBuffer = mAttachInfo.mHardwareRenderer.createDisplayListLayer( 1610// mWidth, mHeight); 1611// } 1612// mResizeBuffer.prepare(mWidth, mHeight, false); 1613// RenderNode layerRenderNode = mResizeBuffer.startRecording(); 1614// HardwareCanvas layerCanvas = layerRenderNode.start(mWidth, mHeight); 1615// try { 1616// final int restoreCount = layerCanvas.save(); 1617// 1618// int yoff; 1619// final boolean scrolling = mScroller != null 1620// && mScroller.computeScrollOffset(); 1621// if (scrolling) { 1622// yoff = mScroller.getCurrY(); 1623// mScroller.abortAnimation(); 1624// } else { 1625// yoff = mScrollY; 1626// } 1627// 1628// layerCanvas.translate(0, -yoff); 1629// if (mTranslator != null) { 1630// mTranslator.translateCanvas(layerCanvas); 1631// } 1632// 1633// RenderNode renderNode = mView.mRenderNode; 1634// if (renderNode != null && renderNode.isValid()) { 1635// layerCanvas.drawDisplayList(renderNode, null, 1636// RenderNode.FLAG_CLIP_CHILDREN); 1637// } else { 1638// mView.draw(layerCanvas); 1639// } 1640// 1641// drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1642// 1643// mResizeBufferStartTime = SystemClock.uptimeMillis(); 1644// mResizeBufferDuration = mView.getResources().getInteger( 1645// com.android.internal.R.integer.config_mediumAnimTime); 1646// 1647// layerCanvas.restoreToCount(restoreCount); 1648// layerRenderNode.end(layerCanvas); 1649// layerRenderNode.setCaching(true); 1650// layerRenderNode.setLeftTopRightBottom(0, 0, mWidth, mHeight); 1651// mTempRect.set(0, 0, mWidth, mHeight); 1652// } finally { 1653// mResizeBuffer.endRecording(mTempRect); 1654// } 1655// mAttachInfo.mHardwareRenderer.flushLayerUpdates(); 1656 } 1657 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1658 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1659 + mAttachInfo.mContentInsets); 1660 } 1661 if (overscanInsetsChanged) { 1662 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1663 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1664 + mAttachInfo.mOverscanInsets); 1665 // Need to relayout with content insets. 1666 contentInsetsChanged = true; 1667 } 1668 if (stableInsetsChanged) { 1669 mAttachInfo.mStableInsets.set(mPendingStableInsets); 1670 if (DEBUG_LAYOUT) Log.v(TAG, "Decor insets changing to: " 1671 + mAttachInfo.mStableInsets); 1672 // Need to relayout with content insets. 1673 contentInsetsChanged = true; 1674 } 1675 if (contentInsetsChanged || mLastSystemUiVisibility != 1676 mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested 1677 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1678 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1679 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1680 mApplyInsetsRequested = false; 1681 dispatchApplyInsets(host); 1682 } 1683 if (visibleInsetsChanged) { 1684 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1685 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1686 + mAttachInfo.mVisibleInsets); 1687 } 1688 1689 if (!hadSurface) { 1690 if (mSurface.isValid()) { 1691 // If we are creating a new surface, then we need to 1692 // completely redraw it. Also, when we get to the 1693 // point of drawing it we will hold off and schedule 1694 // a new traversal instead. This is so we can tell the 1695 // window manager about all of the windows being displayed 1696 // before actually drawing them, so it can display then 1697 // all at once. 1698 newSurface = true; 1699 mFullRedrawNeeded = true; 1700 mPreviousTransparentRegion.setEmpty(); 1701 1702 if (mAttachInfo.mHardwareRenderer != null) { 1703 try { 1704 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1705 mSurface); 1706 } catch (OutOfResourcesException e) { 1707 handleOutOfResourcesException(e); 1708 return; 1709 } 1710 } 1711 } 1712 } else if (!mSurface.isValid()) { 1713 // If the surface has been removed, then reset the scroll 1714 // positions. 1715 if (mLastScrolledFocus != null) { 1716 mLastScrolledFocus.clear(); 1717 } 1718 mScrollY = mCurScrollY = 0; 1719 if (mView instanceof RootViewSurfaceTaker) { 1720 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 1721 } 1722 if (mScroller != null) { 1723 mScroller.abortAnimation(); 1724 } 1725 disposeResizeBuffer(); 1726 // Our surface is gone 1727 if (mAttachInfo.mHardwareRenderer != null && 1728 mAttachInfo.mHardwareRenderer.isEnabled()) { 1729 mAttachInfo.mHardwareRenderer.destroy(); 1730 } 1731 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1732 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1733 mFullRedrawNeeded = true; 1734 try { 1735 mAttachInfo.mHardwareRenderer.updateSurface(mSurface); 1736 } catch (OutOfResourcesException e) { 1737 handleOutOfResourcesException(e); 1738 return; 1739 } 1740 } 1741 } catch (RemoteException e) { 1742 } 1743 1744 if (DEBUG_ORIENTATION) Log.v( 1745 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1746 1747 mAttachInfo.mWindowLeft = frame.left; 1748 mAttachInfo.mWindowTop = frame.top; 1749 1750 // !!FIXME!! This next section handles the case where we did not get the 1751 // window size we asked for. We should avoid this by getting a maximum size from 1752 // the window session beforehand. 1753 if (mWidth != frame.width() || mHeight != frame.height()) { 1754 mWidth = frame.width(); 1755 mHeight = frame.height(); 1756 } 1757 1758 if (mSurfaceHolder != null) { 1759 // The app owns the surface; tell it about what is going on. 1760 if (mSurface.isValid()) { 1761 // XXX .copyFrom() doesn't work! 1762 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1763 mSurfaceHolder.mSurface = mSurface; 1764 } 1765 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1766 mSurfaceHolder.mSurfaceLock.unlock(); 1767 if (mSurface.isValid()) { 1768 if (!hadSurface) { 1769 mSurfaceHolder.ungetCallbacks(); 1770 1771 mIsCreating = true; 1772 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1773 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1774 if (callbacks != null) { 1775 for (SurfaceHolder.Callback c : callbacks) { 1776 c.surfaceCreated(mSurfaceHolder); 1777 } 1778 } 1779 surfaceChanged = true; 1780 } 1781 if (surfaceChanged) { 1782 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1783 lp.format, mWidth, mHeight); 1784 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1785 if (callbacks != null) { 1786 for (SurfaceHolder.Callback c : callbacks) { 1787 c.surfaceChanged(mSurfaceHolder, lp.format, 1788 mWidth, mHeight); 1789 } 1790 } 1791 } 1792 mIsCreating = false; 1793 } else if (hadSurface) { 1794 mSurfaceHolder.ungetCallbacks(); 1795 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1796 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1797 if (callbacks != null) { 1798 for (SurfaceHolder.Callback c : callbacks) { 1799 c.surfaceDestroyed(mSurfaceHolder); 1800 } 1801 } 1802 mSurfaceHolder.mSurfaceLock.lock(); 1803 try { 1804 mSurfaceHolder.mSurface = new Surface(); 1805 } finally { 1806 mSurfaceHolder.mSurfaceLock.unlock(); 1807 } 1808 } 1809 } 1810 1811 if (mAttachInfo.mHardwareRenderer != null && 1812 mAttachInfo.mHardwareRenderer.isEnabled()) { 1813 if (hwInitialized || 1814 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1815 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1816 mAttachInfo.mHardwareRenderer.setup( 1817 mWidth, mHeight, mWindowAttributes.surfaceInsets); 1818 if (!hwInitialized) { 1819 mAttachInfo.mHardwareRenderer.invalidate(mSurface); 1820 mFullRedrawNeeded = true; 1821 } 1822 } 1823 } 1824 1825 if (!mStopped || mReportNextDraw) { 1826 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1827 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1828 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1829 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1830 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1831 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1832 1833 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1834 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1835 + " mHeight=" + mHeight 1836 + " measuredHeight=" + host.getMeasuredHeight() 1837 + " coveredInsetsChanged=" + contentInsetsChanged); 1838 1839 // Ask host how big it wants to be 1840 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1841 1842 // Implementation of weights from WindowManager.LayoutParams 1843 // We just grow the dimensions as needed and re-measure if 1844 // needs be 1845 int width = host.getMeasuredWidth(); 1846 int height = host.getMeasuredHeight(); 1847 boolean measureAgain = false; 1848 1849 if (lp.horizontalWeight > 0.0f) { 1850 width += (int) ((mWidth - width) * lp.horizontalWeight); 1851 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1852 MeasureSpec.EXACTLY); 1853 measureAgain = true; 1854 } 1855 if (lp.verticalWeight > 0.0f) { 1856 height += (int) ((mHeight - height) * lp.verticalWeight); 1857 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1858 MeasureSpec.EXACTLY); 1859 measureAgain = true; 1860 } 1861 1862 if (measureAgain) { 1863 if (DEBUG_LAYOUT) Log.v(TAG, 1864 "And hey let's measure once more: width=" + width 1865 + " height=" + height); 1866 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1867 } 1868 1869 layoutRequested = true; 1870 } 1871 } 1872 } else { 1873 // Not the first pass and no window/insets/visibility change but the window 1874 // may have moved and we need check that and if so to update the left and right 1875 // in the attach info. We translate only the window frame since on window move 1876 // the window manager tells us only for the new frame but the insets are the 1877 // same and we do not want to translate them more than once. 1878 1879 // TODO: Well, we are checking whether the frame has changed similarly 1880 // to how this is done for the insets. This is however incorrect since 1881 // the insets and the frame are translated. For example, the old frame 1882 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1883 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1884 // true since we are comparing a not translated value to a translated one. 1885 // This scenario is rare but we may want to fix that. 1886 1887 final boolean windowMoved = (mAttachInfo.mWindowLeft != frame.left 1888 || mAttachInfo.mWindowTop != frame.top); 1889 if (windowMoved) { 1890 if (mTranslator != null) { 1891 mTranslator.translateRectInScreenToAppWinFrame(frame); 1892 } 1893 mAttachInfo.mWindowLeft = frame.left; 1894 mAttachInfo.mWindowTop = frame.top; 1895 } 1896 } 1897 1898 final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw); 1899 boolean triggerGlobalLayoutListener = didLayout 1900 || mAttachInfo.mRecomputeGlobalAttributes; 1901 if (didLayout) { 1902 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1903 1904 // By this point all views have been sized and positioned 1905 // We can compute the transparent area 1906 1907 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1908 // start out transparent 1909 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1910 host.getLocationInWindow(mTmpLocation); 1911 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1912 mTmpLocation[0] + host.mRight - host.mLeft, 1913 mTmpLocation[1] + host.mBottom - host.mTop); 1914 1915 host.gatherTransparentRegion(mTransparentRegion); 1916 if (mTranslator != null) { 1917 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1918 } 1919 1920 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1921 mPreviousTransparentRegion.set(mTransparentRegion); 1922 mFullRedrawNeeded = true; 1923 // reconfigure window manager 1924 try { 1925 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1926 } catch (RemoteException e) { 1927 } 1928 } 1929 } 1930 1931 if (DBG) { 1932 System.out.println("======================================"); 1933 System.out.println("performTraversals -- after setFrame"); 1934 host.debug(); 1935 } 1936 } 1937 1938 if (triggerGlobalLayoutListener) { 1939 mAttachInfo.mRecomputeGlobalAttributes = false; 1940 mAttachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1941 } 1942 1943 if (computesInternalInsets) { 1944 // Clear the original insets. 1945 final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets; 1946 insets.reset(); 1947 1948 // Compute new insets in place. 1949 mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1950 mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty(); 1951 1952 // Tell the window manager. 1953 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1954 mLastGivenInsets.set(insets); 1955 1956 // Translate insets to screen coordinates if needed. 1957 final Rect contentInsets; 1958 final Rect visibleInsets; 1959 final Region touchableRegion; 1960 if (mTranslator != null) { 1961 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1962 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1963 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1964 } else { 1965 contentInsets = insets.contentInsets; 1966 visibleInsets = insets.visibleInsets; 1967 touchableRegion = insets.touchableRegion; 1968 } 1969 1970 try { 1971 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1972 contentInsets, visibleInsets, touchableRegion); 1973 } catch (RemoteException e) { 1974 } 1975 } 1976 } 1977 1978 boolean skipDraw = false; 1979 1980 if (mFirst) { 1981 // handle first focus request 1982 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1983 + mView.hasFocus()); 1984 if (mView != null) { 1985 if (!mView.hasFocus()) { 1986 mView.requestFocus(View.FOCUS_FORWARD); 1987 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1988 + mView.findFocus()); 1989 } else { 1990 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1991 + mView.findFocus()); 1992 } 1993 } 1994 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1995 // The first time we relayout the window, if the system is 1996 // doing window animations, we want to hold of on any future 1997 // draws until the animation is done. 1998 mWindowsAnimating = true; 1999 } 2000 } else if (mWindowsAnimating) { 2001 skipDraw = true; 2002 } 2003 2004 mFirst = false; 2005 mWillDrawSoon = false; 2006 mNewSurfaceNeeded = false; 2007 mViewVisibility = viewVisibility; 2008 2009 if (mAttachInfo.mHasWindowFocus && !isInLocalFocusMode()) { 2010 final boolean imTarget = WindowManager.LayoutParams 2011 .mayUseInputMethod(mWindowAttributes.flags); 2012 if (imTarget != mLastWasImTarget) { 2013 mLastWasImTarget = imTarget; 2014 InputMethodManager imm = InputMethodManager.peekInstance(); 2015 if (imm != null && imTarget) { 2016 imm.startGettingWindowFocus(mView); 2017 imm.onWindowFocus(mView, mView.findFocus(), 2018 mWindowAttributes.softInputMode, 2019 !mHasHadWindowFocus, mWindowAttributes.flags); 2020 } 2021 } 2022 } 2023 2024 // Remember if we must report the next draw. 2025 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 2026 mReportNextDraw = true; 2027 } 2028 2029 boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || 2030 viewVisibility != View.VISIBLE; 2031 2032 if (!cancelDraw && !newSurface) { 2033 if (!skipDraw || mReportNextDraw) { 2034 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2035 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2036 mPendingTransitions.get(i).startChangingAnimations(); 2037 } 2038 mPendingTransitions.clear(); 2039 } 2040 2041 performDraw(); 2042 } 2043 } else { 2044 if (viewVisibility == View.VISIBLE) { 2045 // Try again 2046 scheduleTraversals(); 2047 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2048 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2049 mPendingTransitions.get(i).endChangingAnimations(); 2050 } 2051 mPendingTransitions.clear(); 2052 } 2053 } 2054 2055 mIsInTraversal = false; 2056 } 2057 2058 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 2059 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 2060 try { 2061 if (!mWindowSession.outOfMemory(mWindow) && 2062 Process.myUid() != Process.SYSTEM_UID) { 2063 Slog.w(TAG, "No processes killed for memory; killing self"); 2064 Process.killProcess(Process.myPid()); 2065 } 2066 } catch (RemoteException ex) { 2067 } 2068 mLayoutRequested = true; // ask wm for a new surface next time. 2069 } 2070 2071 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 2072 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 2073 try { 2074 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 2075 } finally { 2076 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2077 } 2078 } 2079 2080 /** 2081 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 2082 * is currently undergoing a layout pass. 2083 * 2084 * @return whether the view hierarchy is currently undergoing a layout pass 2085 */ 2086 boolean isInLayout() { 2087 return mInLayout; 2088 } 2089 2090 /** 2091 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 2092 * undergoing a layout pass. requestLayout() should not generally be called during layout, 2093 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 2094 * all children in that container hierarchy are measured and laid out at the end of the layout 2095 * pass for that container). If requestLayout() is called anyway, we handle it correctly 2096 * by registering all requesters during a frame as it proceeds. At the end of the frame, 2097 * we check all of those views to see if any still have pending layout requests, which 2098 * indicates that they were not correctly handled by their container hierarchy. If that is 2099 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 2100 * to blank containers, and force a second request/measure/layout pass in this frame. If 2101 * more requestLayout() calls are received during that second layout pass, we post those 2102 * requests to the next frame to avoid possible infinite loops. 2103 * 2104 * <p>The return value from this method indicates whether the request should proceed 2105 * (if it is a request during the first layout pass) or should be skipped and posted to the 2106 * next frame (if it is a request during the second layout pass).</p> 2107 * 2108 * @param view the view that requested the layout. 2109 * 2110 * @return true if request should proceed, false otherwise. 2111 */ 2112 boolean requestLayoutDuringLayout(final View view) { 2113 if (view.mParent == null || view.mAttachInfo == null) { 2114 // Would not normally trigger another layout, so just let it pass through as usual 2115 return true; 2116 } 2117 if (!mLayoutRequesters.contains(view)) { 2118 mLayoutRequesters.add(view); 2119 } 2120 if (!mHandlingLayoutInLayoutRequest) { 2121 // Let the request proceed normally; it will be processed in a second layout pass 2122 // if necessary 2123 return true; 2124 } else { 2125 // Don't let the request proceed during the second layout pass. 2126 // It will post to the next frame instead. 2127 return false; 2128 } 2129 } 2130 2131 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 2132 int desiredWindowHeight) { 2133 mLayoutRequested = false; 2134 mScrollMayChange = true; 2135 mInLayout = true; 2136 2137 final View host = mView; 2138 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 2139 Log.v(TAG, "Laying out " + host + " to (" + 2140 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 2141 } 2142 2143 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2144 try { 2145 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2146 2147 mInLayout = false; 2148 int numViewsRequestingLayout = mLayoutRequesters.size(); 2149 if (numViewsRequestingLayout > 0) { 2150 // requestLayout() was called during layout. 2151 // If no layout-request flags are set on the requesting views, there is no problem. 2152 // If some requests are still pending, then we need to clear those flags and do 2153 // a full request/measure/layout pass to handle this situation. 2154 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2155 false); 2156 if (validLayoutRequesters != null) { 2157 // Set this flag to indicate that any further requests are happening during 2158 // the second pass, which may result in posting those requests to the next 2159 // frame instead 2160 mHandlingLayoutInLayoutRequest = true; 2161 2162 // Process fresh layout requests, then measure and layout 2163 int numValidRequests = validLayoutRequesters.size(); 2164 for (int i = 0; i < numValidRequests; ++i) { 2165 final View view = validLayoutRequesters.get(i); 2166 Log.w("View", "requestLayout() improperly called by " + view + 2167 " during layout: running second layout pass"); 2168 view.requestLayout(); 2169 } 2170 measureHierarchy(host, lp, mView.getContext().getResources(), 2171 desiredWindowWidth, desiredWindowHeight); 2172 mInLayout = true; 2173 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2174 2175 mHandlingLayoutInLayoutRequest = false; 2176 2177 // Check the valid requests again, this time without checking/clearing the 2178 // layout flags, since requests happening during the second pass get noop'd 2179 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2180 if (validLayoutRequesters != null) { 2181 final ArrayList<View> finalRequesters = validLayoutRequesters; 2182 // Post second-pass requests to the next frame 2183 getRunQueue().post(new Runnable() { 2184 @Override 2185 public void run() { 2186 int numValidRequests = finalRequesters.size(); 2187 for (int i = 0; i < numValidRequests; ++i) { 2188 final View view = finalRequesters.get(i); 2189 Log.w("View", "requestLayout() improperly called by " + view + 2190 " during second layout pass: posting in next frame"); 2191 view.requestLayout(); 2192 } 2193 } 2194 }); 2195 } 2196 } 2197 2198 } 2199 } finally { 2200 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2201 } 2202 mInLayout = false; 2203 } 2204 2205 /** 2206 * This method is called during layout when there have been calls to requestLayout() during 2207 * layout. It walks through the list of views that requested layout to determine which ones 2208 * still need it, based on visibility in the hierarchy and whether they have already been 2209 * handled (as is usually the case with ListView children). 2210 * 2211 * @param layoutRequesters The list of views that requested layout during layout 2212 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2213 * If so, the FORCE_LAYOUT flag was not set on requesters. 2214 * @return A list of the actual views that still need to be laid out. 2215 */ 2216 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2217 boolean secondLayoutRequests) { 2218 2219 int numViewsRequestingLayout = layoutRequesters.size(); 2220 ArrayList<View> validLayoutRequesters = null; 2221 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2222 View view = layoutRequesters.get(i); 2223 if (view != null && view.mAttachInfo != null && view.mParent != null && 2224 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2225 View.PFLAG_FORCE_LAYOUT)) { 2226 boolean gone = false; 2227 View parent = view; 2228 // Only trigger new requests for views in a non-GONE hierarchy 2229 while (parent != null) { 2230 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2231 gone = true; 2232 break; 2233 } 2234 if (parent.mParent instanceof View) { 2235 parent = (View) parent.mParent; 2236 } else { 2237 parent = null; 2238 } 2239 } 2240 if (!gone) { 2241 if (validLayoutRequesters == null) { 2242 validLayoutRequesters = new ArrayList<View>(); 2243 } 2244 validLayoutRequesters.add(view); 2245 } 2246 } 2247 } 2248 if (!secondLayoutRequests) { 2249 // If we're checking the layout flags, then we need to clean them up also 2250 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2251 View view = layoutRequesters.get(i); 2252 while (view != null && 2253 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2254 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2255 if (view.mParent instanceof View) { 2256 view = (View) view.mParent; 2257 } else { 2258 view = null; 2259 } 2260 } 2261 } 2262 } 2263 layoutRequesters.clear(); 2264 return validLayoutRequesters; 2265 } 2266 2267 @Override 2268 public void requestTransparentRegion(View child) { 2269 // the test below should not fail unless someone is messing with us 2270 checkThread(); 2271 if (mView == child) { 2272 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2273 // Need to make sure we re-evaluate the window attributes next 2274 // time around, to ensure the window has the correct format. 2275 mWindowAttributesChanged = true; 2276 mWindowAttributesChangesFlag = 0; 2277 requestLayout(); 2278 } 2279 } 2280 2281 /** 2282 * Figures out the measure spec for the root view in a window based on it's 2283 * layout params. 2284 * 2285 * @param windowSize 2286 * The available width or height of the window 2287 * 2288 * @param rootDimension 2289 * The layout params for one dimension (width or height) of the 2290 * window. 2291 * 2292 * @return The measure spec to use to measure the root view. 2293 */ 2294 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2295 int measureSpec; 2296 switch (rootDimension) { 2297 2298 case ViewGroup.LayoutParams.MATCH_PARENT: 2299 // Window can't resize. Force root view to be windowSize. 2300 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2301 break; 2302 case ViewGroup.LayoutParams.WRAP_CONTENT: 2303 // Window can resize. Set max size for root view. 2304 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2305 break; 2306 default: 2307 // Window wants to be an exact size. Force root view to be that size. 2308 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2309 break; 2310 } 2311 return measureSpec; 2312 } 2313 2314 int mHardwareXOffset; 2315 int mHardwareYOffset; 2316 int mResizeAlpha; 2317 final Paint mResizePaint = new Paint(); 2318 2319 @Override 2320 public void onHardwarePreDraw(DisplayListCanvas canvas) { 2321 canvas.translate(-mHardwareXOffset, -mHardwareYOffset); 2322 } 2323 2324 @Override 2325 public void onHardwarePostDraw(DisplayListCanvas canvas) { 2326 if (mResizeBuffer != null) { 2327 mResizePaint.setAlpha(mResizeAlpha); 2328 canvas.drawHardwareLayer(mResizeBuffer, mHardwareXOffset, mHardwareYOffset, 2329 mResizePaint); 2330 } 2331 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2332 } 2333 2334 /** 2335 * @hide 2336 */ 2337 void outputDisplayList(View view) { 2338 RenderNode renderNode = view.updateDisplayListIfDirty(); 2339 renderNode.output(); 2340 } 2341 2342 /** 2343 * @see #PROPERTY_PROFILE_RENDERING 2344 */ 2345 private void profileRendering(boolean enabled) { 2346 if (mProfileRendering) { 2347 mRenderProfilingEnabled = enabled; 2348 2349 if (mRenderProfiler != null) { 2350 mChoreographer.removeFrameCallback(mRenderProfiler); 2351 } 2352 if (mRenderProfilingEnabled) { 2353 if (mRenderProfiler == null) { 2354 mRenderProfiler = new Choreographer.FrameCallback() { 2355 @Override 2356 public void doFrame(long frameTimeNanos) { 2357 mDirty.set(0, 0, mWidth, mHeight); 2358 scheduleTraversals(); 2359 if (mRenderProfilingEnabled) { 2360 mChoreographer.postFrameCallback(mRenderProfiler); 2361 } 2362 } 2363 }; 2364 } 2365 mChoreographer.postFrameCallback(mRenderProfiler); 2366 } else { 2367 mRenderProfiler = null; 2368 } 2369 } 2370 } 2371 2372 /** 2373 * Called from draw() when DEBUG_FPS is enabled 2374 */ 2375 private void trackFPS() { 2376 // Tracks frames per second drawn. First value in a series of draws may be bogus 2377 // because it down not account for the intervening idle time 2378 long nowTime = System.currentTimeMillis(); 2379 if (mFpsStartTime < 0) { 2380 mFpsStartTime = mFpsPrevTime = nowTime; 2381 mFpsNumFrames = 0; 2382 } else { 2383 ++mFpsNumFrames; 2384 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2385 long frameTime = nowTime - mFpsPrevTime; 2386 long totalTime = nowTime - mFpsStartTime; 2387 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2388 mFpsPrevTime = nowTime; 2389 if (totalTime > 1000) { 2390 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2391 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2392 mFpsStartTime = nowTime; 2393 mFpsNumFrames = 0; 2394 } 2395 } 2396 } 2397 2398 private void performDraw() { 2399 if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) { 2400 return; 2401 } 2402 2403 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2404 mFullRedrawNeeded = false; 2405 2406 mIsDrawing = true; 2407 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2408 try { 2409 draw(fullRedrawNeeded); 2410 } finally { 2411 mIsDrawing = false; 2412 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2413 } 2414 2415 // For whatever reason we didn't create a HardwareRenderer, end any 2416 // hardware animations that are now dangling 2417 if (mAttachInfo.mPendingAnimatingRenderNodes != null) { 2418 final int count = mAttachInfo.mPendingAnimatingRenderNodes.size(); 2419 for (int i = 0; i < count; i++) { 2420 mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators(); 2421 } 2422 mAttachInfo.mPendingAnimatingRenderNodes.clear(); 2423 } 2424 2425 if (mReportNextDraw) { 2426 mReportNextDraw = false; 2427 if (mAttachInfo.mHardwareRenderer != null) { 2428 mAttachInfo.mHardwareRenderer.fence(); 2429 } 2430 2431 if (LOCAL_LOGV) { 2432 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2433 } 2434 if (mSurfaceHolder != null && mSurface.isValid()) { 2435 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2436 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2437 if (callbacks != null) { 2438 for (SurfaceHolder.Callback c : callbacks) { 2439 if (c instanceof SurfaceHolder.Callback2) { 2440 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2441 mSurfaceHolder); 2442 } 2443 } 2444 } 2445 } 2446 try { 2447 mWindowSession.finishDrawing(mWindow); 2448 } catch (RemoteException e) { 2449 } 2450 } 2451 } 2452 2453 private void draw(boolean fullRedrawNeeded) { 2454 Surface surface = mSurface; 2455 if (!surface.isValid()) { 2456 return; 2457 } 2458 2459 if (DEBUG_FPS) { 2460 trackFPS(); 2461 } 2462 2463 if (!sFirstDrawComplete) { 2464 synchronized (sFirstDrawHandlers) { 2465 sFirstDrawComplete = true; 2466 final int count = sFirstDrawHandlers.size(); 2467 for (int i = 0; i< count; i++) { 2468 mHandler.post(sFirstDrawHandlers.get(i)); 2469 } 2470 } 2471 } 2472 2473 scrollToRectOrFocus(null, false); 2474 2475 if (mAttachInfo.mViewScrollChanged) { 2476 mAttachInfo.mViewScrollChanged = false; 2477 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 2478 } 2479 2480 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2481 final int curScrollY; 2482 if (animating) { 2483 curScrollY = mScroller.getCurrY(); 2484 } else { 2485 curScrollY = mScrollY; 2486 } 2487 if (mCurScrollY != curScrollY) { 2488 mCurScrollY = curScrollY; 2489 fullRedrawNeeded = true; 2490 if (mView instanceof RootViewSurfaceTaker) { 2491 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 2492 } 2493 } 2494 2495 final float appScale = mAttachInfo.mApplicationScale; 2496 final boolean scalingRequired = mAttachInfo.mScalingRequired; 2497 2498 int resizeAlpha = 0; 2499 if (mResizeBuffer != null) { 2500 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2501 if (deltaTime < mResizeBufferDuration) { 2502 float amt = deltaTime/(float) mResizeBufferDuration; 2503 amt = mResizeInterpolator.getInterpolation(amt); 2504 animating = true; 2505 resizeAlpha = 255 - (int)(amt*255); 2506 } else { 2507 disposeResizeBuffer(); 2508 } 2509 } 2510 2511 final Rect dirty = mDirty; 2512 if (mSurfaceHolder != null) { 2513 // The app owns the surface, we won't draw. 2514 dirty.setEmpty(); 2515 if (animating) { 2516 if (mScroller != null) { 2517 mScroller.abortAnimation(); 2518 } 2519 disposeResizeBuffer(); 2520 } 2521 return; 2522 } 2523 2524 if (fullRedrawNeeded) { 2525 mAttachInfo.mIgnoreDirtyState = true; 2526 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2527 } 2528 2529 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2530 Log.v(TAG, "Draw " + mView + "/" 2531 + mWindowAttributes.getTitle() 2532 + ": dirty={" + dirty.left + "," + dirty.top 2533 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2534 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2535 appScale + ", width=" + mWidth + ", height=" + mHeight); 2536 } 2537 2538 mAttachInfo.mTreeObserver.dispatchOnDraw(); 2539 2540 int xOffset = 0; 2541 int yOffset = curScrollY; 2542 final WindowManager.LayoutParams params = mWindowAttributes; 2543 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 2544 if (surfaceInsets != null) { 2545 xOffset -= surfaceInsets.left; 2546 yOffset -= surfaceInsets.top; 2547 2548 // Offset dirty rect for surface insets. 2549 dirty.offset(surfaceInsets.left, surfaceInsets.right); 2550 } 2551 2552 boolean accessibilityFocusDirty = false; 2553 final Drawable drawable = mAttachInfo.mAccessibilityFocusDrawable; 2554 if (drawable != null) { 2555 final Rect bounds = mAttachInfo.mTmpInvalRect; 2556 final boolean hasFocus = getAccessibilityFocusedRect(bounds); 2557 if (!hasFocus) { 2558 bounds.setEmpty(); 2559 } 2560 if (!bounds.equals(drawable.getBounds())) { 2561 accessibilityFocusDirty = true; 2562 } 2563 } 2564 2565 mAttachInfo.mDrawingTime = 2566 mChoreographer.getFrameTimeNanos() / TimeUtils.NANOS_PER_MS; 2567 2568 if (!dirty.isEmpty() || mIsAnimating || accessibilityFocusDirty) { 2569 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 2570 // If accessibility focus moved, always invalidate the root. 2571 boolean invalidateRoot = accessibilityFocusDirty; 2572 2573 // Draw with hardware renderer. 2574 mIsAnimating = false; 2575 2576 if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) { 2577 mHardwareYOffset = yOffset; 2578 mHardwareXOffset = xOffset; 2579 invalidateRoot = true; 2580 } 2581 mResizeAlpha = resizeAlpha; 2582 2583 if (invalidateRoot) { 2584 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2585 } 2586 2587 dirty.setEmpty(); 2588 2589 mBlockResizeBuffer = false; 2590 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this); 2591 } else { 2592 // If we get here with a disabled & requested hardware renderer, something went 2593 // wrong (an invalidate posted right before we destroyed the hardware surface 2594 // for instance) so we should just bail out. Locking the surface with software 2595 // rendering at this point would lock it forever and prevent hardware renderer 2596 // from doing its job when it comes back. 2597 // Before we request a new frame we must however attempt to reinitiliaze the 2598 // hardware renderer if it's in requested state. This would happen after an 2599 // eglTerminate() for instance. 2600 if (mAttachInfo.mHardwareRenderer != null && 2601 !mAttachInfo.mHardwareRenderer.isEnabled() && 2602 mAttachInfo.mHardwareRenderer.isRequested()) { 2603 2604 try { 2605 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2606 mWidth, mHeight, mSurface, surfaceInsets); 2607 } catch (OutOfResourcesException e) { 2608 handleOutOfResourcesException(e); 2609 return; 2610 } 2611 2612 mFullRedrawNeeded = true; 2613 scheduleTraversals(); 2614 return; 2615 } 2616 2617 if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) { 2618 return; 2619 } 2620 } 2621 } 2622 2623 if (animating) { 2624 mFullRedrawNeeded = true; 2625 scheduleTraversals(); 2626 } 2627 } 2628 2629 /** 2630 * @return true if drawing was successful, false if an error occurred 2631 */ 2632 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff, 2633 boolean scalingRequired, Rect dirty) { 2634 2635 // Draw with software renderer. 2636 final Canvas canvas; 2637 try { 2638 final int left = dirty.left; 2639 final int top = dirty.top; 2640 final int right = dirty.right; 2641 final int bottom = dirty.bottom; 2642 2643 canvas = mSurface.lockCanvas(dirty); 2644 2645 // The dirty rectangle can be modified by Surface.lockCanvas() 2646 //noinspection ConstantConditions 2647 if (left != dirty.left || top != dirty.top || right != dirty.right 2648 || bottom != dirty.bottom) { 2649 attachInfo.mIgnoreDirtyState = true; 2650 } 2651 2652 // TODO: Do this in native 2653 canvas.setDensity(mDensity); 2654 } catch (Surface.OutOfResourcesException e) { 2655 handleOutOfResourcesException(e); 2656 return false; 2657 } catch (IllegalArgumentException e) { 2658 Log.e(TAG, "Could not lock surface", e); 2659 // Don't assume this is due to out of memory, it could be 2660 // something else, and if it is something else then we could 2661 // kill stuff (or ourself) for no reason. 2662 mLayoutRequested = true; // ask wm for a new surface next time. 2663 return false; 2664 } 2665 2666 try { 2667 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2668 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2669 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2670 //canvas.drawARGB(255, 255, 0, 0); 2671 } 2672 2673 // If this bitmap's format includes an alpha channel, we 2674 // need to clear it before drawing so that the child will 2675 // properly re-composite its drawing on a transparent 2676 // background. This automatically respects the clip/dirty region 2677 // or 2678 // If we are applying an offset, we need to clear the area 2679 // where the offset doesn't appear to avoid having garbage 2680 // left in the blank areas. 2681 if (!canvas.isOpaque() || yoff != 0 || xoff != 0) { 2682 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2683 } 2684 2685 dirty.setEmpty(); 2686 mIsAnimating = false; 2687 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2688 2689 if (DEBUG_DRAW) { 2690 Context cxt = mView.getContext(); 2691 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2692 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2693 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2694 } 2695 try { 2696 canvas.translate(-xoff, -yoff); 2697 if (mTranslator != null) { 2698 mTranslator.translateCanvas(canvas); 2699 } 2700 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2701 attachInfo.mSetIgnoreDirtyState = false; 2702 2703 mView.draw(canvas); 2704 2705 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2706 } finally { 2707 if (!attachInfo.mSetIgnoreDirtyState) { 2708 // Only clear the flag if it was not set during the mView.draw() call 2709 attachInfo.mIgnoreDirtyState = false; 2710 } 2711 } 2712 } finally { 2713 try { 2714 surface.unlockCanvasAndPost(canvas); 2715 } catch (IllegalArgumentException e) { 2716 Log.e(TAG, "Could not unlock surface", e); 2717 mLayoutRequested = true; // ask wm for a new surface next time. 2718 //noinspection ReturnInsideFinallyBlock 2719 return false; 2720 } 2721 2722 if (LOCAL_LOGV) { 2723 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2724 } 2725 } 2726 return true; 2727 } 2728 2729 /** 2730 * We want to draw a highlight around the current accessibility focused. 2731 * Since adding a style for all possible view is not a viable option we 2732 * have this specialized drawing method. 2733 * 2734 * Note: We are doing this here to be able to draw the highlight for 2735 * virtual views in addition to real ones. 2736 * 2737 * @param canvas The canvas on which to draw. 2738 */ 2739 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2740 final Rect bounds = mAttachInfo.mTmpInvalRect; 2741 if (getAccessibilityFocusedRect(bounds)) { 2742 final Drawable drawable = getAccessibilityFocusedDrawable(); 2743 if (drawable != null) { 2744 drawable.setBounds(bounds); 2745 drawable.draw(canvas); 2746 } 2747 } else if (mAttachInfo.mAccessibilityFocusDrawable != null) { 2748 mAttachInfo.mAccessibilityFocusDrawable.setBounds(0, 0, 0, 0); 2749 } 2750 } 2751 2752 private boolean getAccessibilityFocusedRect(Rect bounds) { 2753 final AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2754 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2755 return false; 2756 } 2757 2758 final View host = mAccessibilityFocusedHost; 2759 if (host == null || host.mAttachInfo == null) { 2760 return false; 2761 } 2762 2763 final AccessibilityNodeProvider provider = host.getAccessibilityNodeProvider(); 2764 if (provider == null) { 2765 host.getBoundsOnScreen(bounds, true); 2766 } else if (mAccessibilityFocusedVirtualView != null) { 2767 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2768 } else { 2769 return false; 2770 } 2771 2772 final AttachInfo attachInfo = mAttachInfo; 2773 bounds.offset(-attachInfo.mWindowLeft, -attachInfo.mWindowTop); 2774 bounds.intersect(0, 0, attachInfo.mViewRootImpl.mWidth, attachInfo.mViewRootImpl.mHeight); 2775 return !bounds.isEmpty(); 2776 } 2777 2778 private Drawable getAccessibilityFocusedDrawable() { 2779 // Lazily load the accessibility focus drawable. 2780 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2781 final TypedValue value = new TypedValue(); 2782 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2783 R.attr.accessibilityFocusedDrawable, value, true); 2784 if (resolved) { 2785 mAttachInfo.mAccessibilityFocusDrawable = 2786 mView.mContext.getDrawable(value.resourceId); 2787 } 2788 } 2789 return mAttachInfo.mAccessibilityFocusDrawable; 2790 } 2791 2792 /** 2793 * @hide 2794 */ 2795 public void setDrawDuringWindowsAnimating(boolean value) { 2796 mDrawDuringWindowsAnimating = value; 2797 if (value) { 2798 handleDispatchDoneAnimating(); 2799 } 2800 } 2801 2802 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2803 final Rect ci = mAttachInfo.mContentInsets; 2804 final Rect vi = mAttachInfo.mVisibleInsets; 2805 int scrollY = 0; 2806 boolean handled = false; 2807 2808 if (vi.left > ci.left || vi.top > ci.top 2809 || vi.right > ci.right || vi.bottom > ci.bottom) { 2810 // We'll assume that we aren't going to change the scroll 2811 // offset, since we want to avoid that unless it is actually 2812 // going to make the focus visible... otherwise we scroll 2813 // all over the place. 2814 scrollY = mScrollY; 2815 // We can be called for two different situations: during a draw, 2816 // to update the scroll position if the focus has changed (in which 2817 // case 'rectangle' is null), or in response to a 2818 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2819 // is non-null and we just want to scroll to whatever that 2820 // rectangle is). 2821 final View focus = mView.findFocus(); 2822 if (focus == null) { 2823 return false; 2824 } 2825 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2826 if (focus != lastScrolledFocus) { 2827 // If the focus has changed, then ignore any requests to scroll 2828 // to a rectangle; first we want to make sure the entire focus 2829 // view is visible. 2830 rectangle = null; 2831 } 2832 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2833 + " rectangle=" + rectangle + " ci=" + ci 2834 + " vi=" + vi); 2835 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2836 // Optimization: if the focus hasn't changed since last 2837 // time, and no layout has happened, then just leave things 2838 // as they are. 2839 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2840 + mScrollY + " vi=" + vi.toShortString()); 2841 } else { 2842 // We need to determine if the currently focused view is 2843 // within the visible part of the window and, if not, apply 2844 // a pan so it can be seen. 2845 mLastScrolledFocus = new WeakReference<View>(focus); 2846 mScrollMayChange = false; 2847 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2848 // Try to find the rectangle from the focus view. 2849 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2850 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2851 + mView.getWidth() + " h=" + mView.getHeight() 2852 + " ci=" + ci.toShortString() 2853 + " vi=" + vi.toShortString()); 2854 if (rectangle == null) { 2855 focus.getFocusedRect(mTempRect); 2856 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2857 + ": focusRect=" + mTempRect.toShortString()); 2858 if (mView instanceof ViewGroup) { 2859 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2860 focus, mTempRect); 2861 } 2862 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2863 "Focus in window: focusRect=" 2864 + mTempRect.toShortString() 2865 + " visRect=" + mVisRect.toShortString()); 2866 } else { 2867 mTempRect.set(rectangle); 2868 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2869 "Request scroll to rect: " 2870 + mTempRect.toShortString() 2871 + " visRect=" + mVisRect.toShortString()); 2872 } 2873 if (mTempRect.intersect(mVisRect)) { 2874 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2875 "Focus window visible rect: " 2876 + mTempRect.toShortString()); 2877 if (mTempRect.height() > 2878 (mView.getHeight()-vi.top-vi.bottom)) { 2879 // If the focus simply is not going to fit, then 2880 // best is probably just to leave things as-is. 2881 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2882 "Too tall; leaving scrollY=" + scrollY); 2883 } else if ((mTempRect.top-scrollY) < vi.top) { 2884 scrollY -= vi.top - (mTempRect.top-scrollY); 2885 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2886 "Top covered; scrollY=" + scrollY); 2887 } else if ((mTempRect.bottom-scrollY) 2888 > (mView.getHeight()-vi.bottom)) { 2889 scrollY += (mTempRect.bottom-scrollY) 2890 - (mView.getHeight()-vi.bottom); 2891 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2892 "Bottom covered; scrollY=" + scrollY); 2893 } 2894 handled = true; 2895 } 2896 } 2897 } 2898 } 2899 2900 if (scrollY != mScrollY) { 2901 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2902 + mScrollY + " , new=" + scrollY); 2903 if (!immediate && mResizeBuffer == null) { 2904 if (mScroller == null) { 2905 mScroller = new Scroller(mView.getContext()); 2906 } 2907 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2908 } else if (mScroller != null) { 2909 mScroller.abortAnimation(); 2910 } 2911 mScrollY = scrollY; 2912 } 2913 2914 return handled; 2915 } 2916 2917 /** 2918 * @hide 2919 */ 2920 public View getAccessibilityFocusedHost() { 2921 return mAccessibilityFocusedHost; 2922 } 2923 2924 /** 2925 * @hide 2926 */ 2927 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2928 return mAccessibilityFocusedVirtualView; 2929 } 2930 2931 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2932 // If we have a virtual view with accessibility focus we need 2933 // to clear the focus and invalidate the virtual view bounds. 2934 if (mAccessibilityFocusedVirtualView != null) { 2935 2936 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2937 View focusHost = mAccessibilityFocusedHost; 2938 2939 // Wipe the state of the current accessibility focus since 2940 // the call into the provider to clear accessibility focus 2941 // will fire an accessibility event which will end up calling 2942 // this method and we want to have clean state when this 2943 // invocation happens. 2944 mAccessibilityFocusedHost = null; 2945 mAccessibilityFocusedVirtualView = null; 2946 2947 // Clear accessibility focus on the host after clearing state since 2948 // this method may be reentrant. 2949 focusHost.clearAccessibilityFocusNoCallbacks(); 2950 2951 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2952 if (provider != null) { 2953 // Invalidate the area of the cleared accessibility focus. 2954 focusNode.getBoundsInParent(mTempRect); 2955 focusHost.invalidate(mTempRect); 2956 // Clear accessibility focus in the virtual node. 2957 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2958 focusNode.getSourceNodeId()); 2959 provider.performAction(virtualNodeId, 2960 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2961 } 2962 focusNode.recycle(); 2963 } 2964 if (mAccessibilityFocusedHost != null) { 2965 // Clear accessibility focus in the view. 2966 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2967 } 2968 2969 // Set the new focus host and node. 2970 mAccessibilityFocusedHost = view; 2971 mAccessibilityFocusedVirtualView = node; 2972 2973 if (mAttachInfo.mHardwareRenderer != null) { 2974 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2975 } 2976 } 2977 2978 @Override 2979 public void requestChildFocus(View child, View focused) { 2980 if (DEBUG_INPUT_RESIZE) { 2981 Log.v(TAG, "Request child focus: focus now " + focused); 2982 } 2983 checkThread(); 2984 scheduleTraversals(); 2985 } 2986 2987 @Override 2988 public void clearChildFocus(View child) { 2989 if (DEBUG_INPUT_RESIZE) { 2990 Log.v(TAG, "Clearing child focus"); 2991 } 2992 checkThread(); 2993 scheduleTraversals(); 2994 } 2995 2996 @Override 2997 public ViewParent getParentForAccessibility() { 2998 return null; 2999 } 3000 3001 @Override 3002 public void focusableViewAvailable(View v) { 3003 checkThread(); 3004 if (mView != null) { 3005 if (!mView.hasFocus()) { 3006 v.requestFocus(); 3007 } else { 3008 // the one case where will transfer focus away from the current one 3009 // is if the current view is a view group that prefers to give focus 3010 // to its children first AND the view is a descendant of it. 3011 View focused = mView.findFocus(); 3012 if (focused instanceof ViewGroup) { 3013 ViewGroup group = (ViewGroup) focused; 3014 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3015 && isViewDescendantOf(v, focused)) { 3016 v.requestFocus(); 3017 } 3018 } 3019 } 3020 } 3021 } 3022 3023 @Override 3024 public void recomputeViewAttributes(View child) { 3025 checkThread(); 3026 if (mView == child) { 3027 mAttachInfo.mRecomputeGlobalAttributes = true; 3028 if (!mWillDrawSoon) { 3029 scheduleTraversals(); 3030 } 3031 } 3032 } 3033 3034 void dispatchDetachedFromWindow() { 3035 if (mView != null && mView.mAttachInfo != null) { 3036 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 3037 mView.dispatchDetachedFromWindow(); 3038 } 3039 3040 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 3041 mAccessibilityManager.removeAccessibilityStateChangeListener( 3042 mAccessibilityInteractionConnectionManager); 3043 mAccessibilityManager.removeHighTextContrastStateChangeListener( 3044 mHighContrastTextManager); 3045 removeSendWindowContentChangedCallback(); 3046 3047 destroyHardwareRenderer(); 3048 3049 setAccessibilityFocus(null, null); 3050 3051 mView.assignParent(null); 3052 mView = null; 3053 mAttachInfo.mRootView = null; 3054 3055 mSurface.release(); 3056 3057 if (mInputQueueCallback != null && mInputQueue != null) { 3058 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 3059 mInputQueue.dispose(); 3060 mInputQueueCallback = null; 3061 mInputQueue = null; 3062 } 3063 if (mInputEventReceiver != null) { 3064 mInputEventReceiver.dispose(); 3065 mInputEventReceiver = null; 3066 } 3067 try { 3068 mWindowSession.remove(mWindow); 3069 } catch (RemoteException e) { 3070 } 3071 3072 // Dispose the input channel after removing the window so the Window Manager 3073 // doesn't interpret the input channel being closed as an abnormal termination. 3074 if (mInputChannel != null) { 3075 mInputChannel.dispose(); 3076 mInputChannel = null; 3077 } 3078 3079 mDisplayManager.unregisterDisplayListener(mDisplayListener); 3080 3081 unscheduleTraversals(); 3082 } 3083 3084 void updateConfiguration(Configuration config, boolean force) { 3085 if (DEBUG_CONFIGURATION) Log.v(TAG, 3086 "Applying new config to window " 3087 + mWindowAttributes.getTitle() 3088 + ": " + config); 3089 3090 CompatibilityInfo ci = mDisplayAdjustments.getCompatibilityInfo(); 3091 if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) { 3092 config = new Configuration(config); 3093 ci.applyToConfiguration(mNoncompatDensity, config); 3094 } 3095 3096 synchronized (sConfigCallbacks) { 3097 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 3098 sConfigCallbacks.get(i).onConfigurationChanged(config); 3099 } 3100 } 3101 if (mView != null) { 3102 // At this point the resources have been updated to 3103 // have the most recent config, whatever that is. Use 3104 // the one in them which may be newer. 3105 config = mView.getResources().getConfiguration(); 3106 if (force || mLastConfiguration.diff(config) != 0) { 3107 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 3108 final int currentLayoutDirection = config.getLayoutDirection(); 3109 mLastConfiguration.setTo(config); 3110 if (lastLayoutDirection != currentLayoutDirection && 3111 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 3112 mView.setLayoutDirection(currentLayoutDirection); 3113 } 3114 mView.dispatchConfigurationChanged(config); 3115 } 3116 } 3117 } 3118 3119 /** 3120 * Return true if child is an ancestor of parent, (or equal to the parent). 3121 */ 3122 public static boolean isViewDescendantOf(View child, View parent) { 3123 if (child == parent) { 3124 return true; 3125 } 3126 3127 final ViewParent theParent = child.getParent(); 3128 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 3129 } 3130 3131 private final static int MSG_INVALIDATE = 1; 3132 private final static int MSG_INVALIDATE_RECT = 2; 3133 private final static int MSG_DIE = 3; 3134 private final static int MSG_RESIZED = 4; 3135 private final static int MSG_RESIZED_REPORT = 5; 3136 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 3137 private final static int MSG_DISPATCH_INPUT_EVENT = 7; 3138 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 3139 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 3140 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 3141 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 3142 private final static int MSG_CHECK_FOCUS = 13; 3143 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 3144 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 3145 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 3146 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 3147 private final static int MSG_UPDATE_CONFIGURATION = 18; 3148 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 3149 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 3150 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 3151 private final static int MSG_INVALIDATE_WORLD = 23; 3152 private final static int MSG_WINDOW_MOVED = 24; 3153 private final static int MSG_SYNTHESIZE_INPUT_EVENT = 25; 3154 private final static int MSG_DISPATCH_WINDOW_SHOWN = 26; 3155 3156 final class ViewRootHandler extends Handler { 3157 @Override 3158 public String getMessageName(Message message) { 3159 switch (message.what) { 3160 case MSG_INVALIDATE: 3161 return "MSG_INVALIDATE"; 3162 case MSG_INVALIDATE_RECT: 3163 return "MSG_INVALIDATE_RECT"; 3164 case MSG_DIE: 3165 return "MSG_DIE"; 3166 case MSG_RESIZED: 3167 return "MSG_RESIZED"; 3168 case MSG_RESIZED_REPORT: 3169 return "MSG_RESIZED_REPORT"; 3170 case MSG_WINDOW_FOCUS_CHANGED: 3171 return "MSG_WINDOW_FOCUS_CHANGED"; 3172 case MSG_DISPATCH_INPUT_EVENT: 3173 return "MSG_DISPATCH_INPUT_EVENT"; 3174 case MSG_DISPATCH_APP_VISIBILITY: 3175 return "MSG_DISPATCH_APP_VISIBILITY"; 3176 case MSG_DISPATCH_GET_NEW_SURFACE: 3177 return "MSG_DISPATCH_GET_NEW_SURFACE"; 3178 case MSG_DISPATCH_KEY_FROM_IME: 3179 return "MSG_DISPATCH_KEY_FROM_IME"; 3180 case MSG_FINISH_INPUT_CONNECTION: 3181 return "MSG_FINISH_INPUT_CONNECTION"; 3182 case MSG_CHECK_FOCUS: 3183 return "MSG_CHECK_FOCUS"; 3184 case MSG_CLOSE_SYSTEM_DIALOGS: 3185 return "MSG_CLOSE_SYSTEM_DIALOGS"; 3186 case MSG_DISPATCH_DRAG_EVENT: 3187 return "MSG_DISPATCH_DRAG_EVENT"; 3188 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 3189 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 3190 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 3191 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 3192 case MSG_UPDATE_CONFIGURATION: 3193 return "MSG_UPDATE_CONFIGURATION"; 3194 case MSG_PROCESS_INPUT_EVENTS: 3195 return "MSG_PROCESS_INPUT_EVENTS"; 3196 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3197 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3198 case MSG_DISPATCH_DONE_ANIMATING: 3199 return "MSG_DISPATCH_DONE_ANIMATING"; 3200 case MSG_WINDOW_MOVED: 3201 return "MSG_WINDOW_MOVED"; 3202 case MSG_SYNTHESIZE_INPUT_EVENT: 3203 return "MSG_SYNTHESIZE_INPUT_EVENT"; 3204 case MSG_DISPATCH_WINDOW_SHOWN: 3205 return "MSG_DISPATCH_WINDOW_SHOWN"; 3206 } 3207 return super.getMessageName(message); 3208 } 3209 3210 @Override 3211 public void handleMessage(Message msg) { 3212 switch (msg.what) { 3213 case MSG_INVALIDATE: 3214 ((View) msg.obj).invalidate(); 3215 break; 3216 case MSG_INVALIDATE_RECT: 3217 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3218 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3219 info.recycle(); 3220 break; 3221 case MSG_PROCESS_INPUT_EVENTS: 3222 mProcessInputEventsScheduled = false; 3223 doProcessInputEvents(); 3224 break; 3225 case MSG_DISPATCH_APP_VISIBILITY: 3226 handleAppVisibility(msg.arg1 != 0); 3227 break; 3228 case MSG_DISPATCH_GET_NEW_SURFACE: 3229 handleGetNewSurface(); 3230 break; 3231 case MSG_RESIZED: { 3232 // Recycled in the fall through... 3233 SomeArgs args = (SomeArgs) msg.obj; 3234 if (mWinFrame.equals(args.arg1) 3235 && mPendingOverscanInsets.equals(args.arg5) 3236 && mPendingContentInsets.equals(args.arg2) 3237 && mPendingStableInsets.equals(args.arg6) 3238 && mPendingVisibleInsets.equals(args.arg3) 3239 && args.arg4 == null) { 3240 break; 3241 } 3242 } // fall through... 3243 case MSG_RESIZED_REPORT: 3244 if (mAdded) { 3245 SomeArgs args = (SomeArgs) msg.obj; 3246 3247 Configuration config = (Configuration) args.arg4; 3248 if (config != null) { 3249 updateConfiguration(config, false); 3250 } 3251 3252 mWinFrame.set((Rect) args.arg1); 3253 mPendingOverscanInsets.set((Rect) args.arg5); 3254 mPendingContentInsets.set((Rect) args.arg2); 3255 mPendingStableInsets.set((Rect) args.arg6); 3256 mPendingVisibleInsets.set((Rect) args.arg3); 3257 3258 args.recycle(); 3259 3260 if (msg.what == MSG_RESIZED_REPORT) { 3261 mReportNextDraw = true; 3262 } 3263 3264 requestLayout(); 3265 } 3266 break; 3267 case MSG_WINDOW_MOVED: 3268 if (mAdded) { 3269 final int w = mWinFrame.width(); 3270 final int h = mWinFrame.height(); 3271 final int l = msg.arg1; 3272 final int t = msg.arg2; 3273 mWinFrame.left = l; 3274 mWinFrame.right = l + w; 3275 mWinFrame.top = t; 3276 mWinFrame.bottom = t + h; 3277 3278 requestLayout(); 3279 } 3280 break; 3281 case MSG_WINDOW_FOCUS_CHANGED: { 3282 if (mAdded) { 3283 boolean hasWindowFocus = msg.arg1 != 0; 3284 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3285 3286 profileRendering(hasWindowFocus); 3287 3288 if (hasWindowFocus) { 3289 boolean inTouchMode = msg.arg2 != 0; 3290 ensureTouchModeLocally(inTouchMode); 3291 3292 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3293 mFullRedrawNeeded = true; 3294 try { 3295 final WindowManager.LayoutParams lp = mWindowAttributes; 3296 final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null; 3297 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3298 mWidth, mHeight, mSurface, surfaceInsets); 3299 } catch (OutOfResourcesException e) { 3300 Log.e(TAG, "OutOfResourcesException locking surface", e); 3301 try { 3302 if (!mWindowSession.outOfMemory(mWindow)) { 3303 Slog.w(TAG, "No processes killed for memory; killing self"); 3304 Process.killProcess(Process.myPid()); 3305 } 3306 } catch (RemoteException ex) { 3307 } 3308 // Retry in a bit. 3309 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3310 return; 3311 } 3312 } 3313 } 3314 3315 mLastWasImTarget = WindowManager.LayoutParams 3316 .mayUseInputMethod(mWindowAttributes.flags); 3317 3318 InputMethodManager imm = InputMethodManager.peekInstance(); 3319 if (mView != null) { 3320 if (hasWindowFocus && imm != null && mLastWasImTarget && 3321 !isInLocalFocusMode()) { 3322 imm.startGettingWindowFocus(mView); 3323 } 3324 mAttachInfo.mKeyDispatchState.reset(); 3325 mView.dispatchWindowFocusChanged(hasWindowFocus); 3326 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3327 } 3328 3329 // Note: must be done after the focus change callbacks, 3330 // so all of the view state is set up correctly. 3331 if (hasWindowFocus) { 3332 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3333 imm.onWindowFocus(mView, mView.findFocus(), 3334 mWindowAttributes.softInputMode, 3335 !mHasHadWindowFocus, mWindowAttributes.flags); 3336 } 3337 // Clear the forward bit. We can just do this directly, since 3338 // the window manager doesn't care about it. 3339 mWindowAttributes.softInputMode &= 3340 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3341 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3342 .softInputMode &= 3343 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3344 mHasHadWindowFocus = true; 3345 } 3346 3347 if (mView != null && mAccessibilityManager.isEnabled()) { 3348 if (hasWindowFocus) { 3349 mView.sendAccessibilityEvent( 3350 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3351 } 3352 } 3353 } 3354 } break; 3355 case MSG_DIE: 3356 doDie(); 3357 break; 3358 case MSG_DISPATCH_INPUT_EVENT: { 3359 SomeArgs args = (SomeArgs)msg.obj; 3360 InputEvent event = (InputEvent)args.arg1; 3361 InputEventReceiver receiver = (InputEventReceiver)args.arg2; 3362 enqueueInputEvent(event, receiver, 0, true); 3363 args.recycle(); 3364 } break; 3365 case MSG_SYNTHESIZE_INPUT_EVENT: { 3366 InputEvent event = (InputEvent)msg.obj; 3367 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true); 3368 } break; 3369 case MSG_DISPATCH_KEY_FROM_IME: { 3370 if (LOCAL_LOGV) Log.v( 3371 TAG, "Dispatching key " 3372 + msg.obj + " from IME to " + mView); 3373 KeyEvent event = (KeyEvent)msg.obj; 3374 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3375 // The IME is trying to say this event is from the 3376 // system! Bad bad bad! 3377 //noinspection UnusedAssignment 3378 event = KeyEvent.changeFlags(event, event.getFlags() & 3379 ~KeyEvent.FLAG_FROM_SYSTEM); 3380 } 3381 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3382 } break; 3383 case MSG_FINISH_INPUT_CONNECTION: { 3384 InputMethodManager imm = InputMethodManager.peekInstance(); 3385 if (imm != null) { 3386 imm.reportFinishInputConnection((InputConnection)msg.obj); 3387 } 3388 } break; 3389 case MSG_CHECK_FOCUS: { 3390 InputMethodManager imm = InputMethodManager.peekInstance(); 3391 if (imm != null) { 3392 imm.checkFocus(); 3393 } 3394 } break; 3395 case MSG_CLOSE_SYSTEM_DIALOGS: { 3396 if (mView != null) { 3397 mView.onCloseSystemDialogs((String)msg.obj); 3398 } 3399 } break; 3400 case MSG_DISPATCH_DRAG_EVENT: 3401 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3402 DragEvent event = (DragEvent)msg.obj; 3403 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3404 handleDragEvent(event); 3405 } break; 3406 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3407 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3408 } break; 3409 case MSG_UPDATE_CONFIGURATION: { 3410 Configuration config = (Configuration)msg.obj; 3411 if (config.isOtherSeqNewer(mLastConfiguration)) { 3412 config = mLastConfiguration; 3413 } 3414 updateConfiguration(config, false); 3415 } break; 3416 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3417 setAccessibilityFocus(null, null); 3418 } break; 3419 case MSG_DISPATCH_DONE_ANIMATING: { 3420 handleDispatchDoneAnimating(); 3421 } break; 3422 case MSG_INVALIDATE_WORLD: { 3423 if (mView != null) { 3424 invalidateWorld(mView); 3425 } 3426 } break; 3427 case MSG_DISPATCH_WINDOW_SHOWN: { 3428 handleDispatchWindowShown(); 3429 } 3430 } 3431 } 3432 } 3433 3434 final ViewRootHandler mHandler = new ViewRootHandler(); 3435 3436 /** 3437 * Something in the current window tells us we need to change the touch mode. For 3438 * example, we are not in touch mode, and the user touches the screen. 3439 * 3440 * If the touch mode has changed, tell the window manager, and handle it locally. 3441 * 3442 * @param inTouchMode Whether we want to be in touch mode. 3443 * @return True if the touch mode changed and focus changed was changed as a result 3444 */ 3445 boolean ensureTouchMode(boolean inTouchMode) { 3446 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3447 + "touch mode is " + mAttachInfo.mInTouchMode); 3448 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3449 3450 // tell the window manager 3451 try { 3452 if (!isInLocalFocusMode()) { 3453 mWindowSession.setInTouchMode(inTouchMode); 3454 } 3455 } catch (RemoteException e) { 3456 throw new RuntimeException(e); 3457 } 3458 3459 // handle the change 3460 return ensureTouchModeLocally(inTouchMode); 3461 } 3462 3463 /** 3464 * Ensure that the touch mode for this window is set, and if it is changing, 3465 * take the appropriate action. 3466 * @param inTouchMode Whether we want to be in touch mode. 3467 * @return True if the touch mode changed and focus changed was changed as a result 3468 */ 3469 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3470 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3471 + "touch mode is " + mAttachInfo.mInTouchMode); 3472 3473 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3474 3475 mAttachInfo.mInTouchMode = inTouchMode; 3476 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3477 3478 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3479 } 3480 3481 private boolean enterTouchMode() { 3482 if (mView != null && mView.hasFocus()) { 3483 // note: not relying on mFocusedView here because this could 3484 // be when the window is first being added, and mFocused isn't 3485 // set yet. 3486 final View focused = mView.findFocus(); 3487 if (focused != null && !focused.isFocusableInTouchMode()) { 3488 final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused); 3489 if (ancestorToTakeFocus != null) { 3490 // there is an ancestor that wants focus after its 3491 // descendants that is focusable in touch mode.. give it 3492 // focus 3493 return ancestorToTakeFocus.requestFocus(); 3494 } else { 3495 // There's nothing to focus. Clear and propagate through the 3496 // hierarchy, but don't attempt to place new focus. 3497 focused.clearFocusInternal(null, true, false); 3498 return true; 3499 } 3500 } 3501 } 3502 return false; 3503 } 3504 3505 /** 3506 * Find an ancestor of focused that wants focus after its descendants and is 3507 * focusable in touch mode. 3508 * @param focused The currently focused view. 3509 * @return An appropriate view, or null if no such view exists. 3510 */ 3511 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3512 ViewParent parent = focused.getParent(); 3513 while (parent instanceof ViewGroup) { 3514 final ViewGroup vgParent = (ViewGroup) parent; 3515 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3516 && vgParent.isFocusableInTouchMode()) { 3517 return vgParent; 3518 } 3519 if (vgParent.isRootNamespace()) { 3520 return null; 3521 } else { 3522 parent = vgParent.getParent(); 3523 } 3524 } 3525 return null; 3526 } 3527 3528 private boolean leaveTouchMode() { 3529 if (mView != null) { 3530 if (mView.hasFocus()) { 3531 View focusedView = mView.findFocus(); 3532 if (!(focusedView instanceof ViewGroup)) { 3533 // some view has focus, let it keep it 3534 return false; 3535 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3536 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3537 // some view group has focus, and doesn't prefer its children 3538 // over itself for focus, so let them keep it. 3539 return false; 3540 } 3541 } 3542 3543 // find the best view to give focus to in this brave new non-touch-mode 3544 // world 3545 final View focused = focusSearch(null, View.FOCUS_DOWN); 3546 if (focused != null) { 3547 return focused.requestFocus(View.FOCUS_DOWN); 3548 } 3549 } 3550 return false; 3551 } 3552 3553 /** 3554 * Base class for implementing a stage in the chain of responsibility 3555 * for processing input events. 3556 * <p> 3557 * Events are delivered to the stage by the {@link #deliver} method. The stage 3558 * then has the choice of finishing the event or forwarding it to the next stage. 3559 * </p> 3560 */ 3561 abstract class InputStage { 3562 private final InputStage mNext; 3563 3564 protected static final int FORWARD = 0; 3565 protected static final int FINISH_HANDLED = 1; 3566 protected static final int FINISH_NOT_HANDLED = 2; 3567 3568 /** 3569 * Creates an input stage. 3570 * @param next The next stage to which events should be forwarded. 3571 */ 3572 public InputStage(InputStage next) { 3573 mNext = next; 3574 } 3575 3576 /** 3577 * Delivers an event to be processed. 3578 */ 3579 public final void deliver(QueuedInputEvent q) { 3580 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3581 forward(q); 3582 } else if (shouldDropInputEvent(q)) { 3583 finish(q, false); 3584 } else { 3585 apply(q, onProcess(q)); 3586 } 3587 } 3588 3589 /** 3590 * Marks the the input event as finished then forwards it to the next stage. 3591 */ 3592 protected void finish(QueuedInputEvent q, boolean handled) { 3593 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3594 if (handled) { 3595 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3596 } 3597 forward(q); 3598 } 3599 3600 /** 3601 * Forwards the event to the next stage. 3602 */ 3603 protected void forward(QueuedInputEvent q) { 3604 onDeliverToNext(q); 3605 } 3606 3607 /** 3608 * Applies a result code from {@link #onProcess} to the specified event. 3609 */ 3610 protected void apply(QueuedInputEvent q, int result) { 3611 if (result == FORWARD) { 3612 forward(q); 3613 } else if (result == FINISH_HANDLED) { 3614 finish(q, true); 3615 } else if (result == FINISH_NOT_HANDLED) { 3616 finish(q, false); 3617 } else { 3618 throw new IllegalArgumentException("Invalid result: " + result); 3619 } 3620 } 3621 3622 /** 3623 * Called when an event is ready to be processed. 3624 * @return A result code indicating how the event was handled. 3625 */ 3626 protected int onProcess(QueuedInputEvent q) { 3627 return FORWARD; 3628 } 3629 3630 /** 3631 * Called when an event is being delivered to the next stage. 3632 */ 3633 protected void onDeliverToNext(QueuedInputEvent q) { 3634 if (DEBUG_INPUT_STAGES) { 3635 Log.v(TAG, "Done with " + getClass().getSimpleName() + ". " + q); 3636 } 3637 if (mNext != null) { 3638 mNext.deliver(q); 3639 } else { 3640 finishInputEvent(q); 3641 } 3642 } 3643 3644 protected boolean shouldDropInputEvent(QueuedInputEvent q) { 3645 if (mView == null || !mAdded) { 3646 Slog.w(TAG, "Dropping event due to root view being removed: " + q.mEvent); 3647 return true; 3648 } else if ((!mAttachInfo.mHasWindowFocus 3649 && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) || mStopped 3650 || (mPausedForTransition && !isBack(q.mEvent))) { 3651 // This is a focus event and the window doesn't currently have input focus or 3652 // has stopped. This could be an event that came back from the previous stage 3653 // but the window has lost focus or stopped in the meantime. 3654 if (isTerminalInputEvent(q.mEvent)) { 3655 // Don't drop terminal input events, however mark them as canceled. 3656 q.mEvent.cancel(); 3657 Slog.w(TAG, "Cancelling event due to no window focus: " + q.mEvent); 3658 return false; 3659 } 3660 3661 // Drop non-terminal input events. 3662 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 3663 return true; 3664 } 3665 return false; 3666 } 3667 3668 void dump(String prefix, PrintWriter writer) { 3669 if (mNext != null) { 3670 mNext.dump(prefix, writer); 3671 } 3672 } 3673 3674 private boolean isBack(InputEvent event) { 3675 if (event instanceof KeyEvent) { 3676 return ((KeyEvent) event).getKeyCode() == KeyEvent.KEYCODE_BACK; 3677 } else { 3678 return false; 3679 } 3680 } 3681 } 3682 3683 /** 3684 * Base class for implementing an input pipeline stage that supports 3685 * asynchronous and out-of-order processing of input events. 3686 * <p> 3687 * In addition to what a normal input stage can do, an asynchronous 3688 * input stage may also defer an input event that has been delivered to it 3689 * and finish or forward it later. 3690 * </p> 3691 */ 3692 abstract class AsyncInputStage extends InputStage { 3693 private final String mTraceCounter; 3694 3695 private QueuedInputEvent mQueueHead; 3696 private QueuedInputEvent mQueueTail; 3697 private int mQueueLength; 3698 3699 protected static final int DEFER = 3; 3700 3701 /** 3702 * Creates an asynchronous input stage. 3703 * @param next The next stage to which events should be forwarded. 3704 * @param traceCounter The name of a counter to record the size of 3705 * the queue of pending events. 3706 */ 3707 public AsyncInputStage(InputStage next, String traceCounter) { 3708 super(next); 3709 mTraceCounter = traceCounter; 3710 } 3711 3712 /** 3713 * Marks the event as deferred, which is to say that it will be handled 3714 * asynchronously. The caller is responsible for calling {@link #forward} 3715 * or {@link #finish} later when it is done handling the event. 3716 */ 3717 protected void defer(QueuedInputEvent q) { 3718 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3719 enqueue(q); 3720 } 3721 3722 @Override 3723 protected void forward(QueuedInputEvent q) { 3724 // Clear the deferred flag. 3725 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3726 3727 // Fast path if the queue is empty. 3728 QueuedInputEvent curr = mQueueHead; 3729 if (curr == null) { 3730 super.forward(q); 3731 return; 3732 } 3733 3734 // Determine whether the event must be serialized behind any others 3735 // before it can be delivered to the next stage. This is done because 3736 // deferred events might be handled out of order by the stage. 3737 final int deviceId = q.mEvent.getDeviceId(); 3738 QueuedInputEvent prev = null; 3739 boolean blocked = false; 3740 while (curr != null && curr != q) { 3741 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 3742 blocked = true; 3743 } 3744 prev = curr; 3745 curr = curr.mNext; 3746 } 3747 3748 // If the event is blocked, then leave it in the queue to be delivered later. 3749 // Note that the event might not yet be in the queue if it was not previously 3750 // deferred so we will enqueue it if needed. 3751 if (blocked) { 3752 if (curr == null) { 3753 enqueue(q); 3754 } 3755 return; 3756 } 3757 3758 // The event is not blocked. Deliver it immediately. 3759 if (curr != null) { 3760 curr = curr.mNext; 3761 dequeue(q, prev); 3762 } 3763 super.forward(q); 3764 3765 // Dequeuing this event may have unblocked successors. Deliver them. 3766 while (curr != null) { 3767 if (deviceId == curr.mEvent.getDeviceId()) { 3768 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 3769 break; 3770 } 3771 QueuedInputEvent next = curr.mNext; 3772 dequeue(curr, prev); 3773 super.forward(curr); 3774 curr = next; 3775 } else { 3776 prev = curr; 3777 curr = curr.mNext; 3778 } 3779 } 3780 } 3781 3782 @Override 3783 protected void apply(QueuedInputEvent q, int result) { 3784 if (result == DEFER) { 3785 defer(q); 3786 } else { 3787 super.apply(q, result); 3788 } 3789 } 3790 3791 private void enqueue(QueuedInputEvent q) { 3792 if (mQueueTail == null) { 3793 mQueueHead = q; 3794 mQueueTail = q; 3795 } else { 3796 mQueueTail.mNext = q; 3797 mQueueTail = q; 3798 } 3799 3800 mQueueLength += 1; 3801 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3802 } 3803 3804 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 3805 if (prev == null) { 3806 mQueueHead = q.mNext; 3807 } else { 3808 prev.mNext = q.mNext; 3809 } 3810 if (mQueueTail == q) { 3811 mQueueTail = prev; 3812 } 3813 q.mNext = null; 3814 3815 mQueueLength -= 1; 3816 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3817 } 3818 3819 @Override 3820 void dump(String prefix, PrintWriter writer) { 3821 writer.print(prefix); 3822 writer.print(getClass().getName()); 3823 writer.print(": mQueueLength="); 3824 writer.println(mQueueLength); 3825 3826 super.dump(prefix, writer); 3827 } 3828 } 3829 3830 /** 3831 * Delivers pre-ime input events to a native activity. 3832 * Does not support pointer events. 3833 */ 3834 final class NativePreImeInputStage extends AsyncInputStage 3835 implements InputQueue.FinishedInputEventCallback { 3836 public NativePreImeInputStage(InputStage next, String traceCounter) { 3837 super(next, traceCounter); 3838 } 3839 3840 @Override 3841 protected int onProcess(QueuedInputEvent q) { 3842 if (mInputQueue != null && q.mEvent instanceof KeyEvent) { 3843 mInputQueue.sendInputEvent(q.mEvent, q, true, this); 3844 return DEFER; 3845 } 3846 return FORWARD; 3847 } 3848 3849 @Override 3850 public void onFinishedInputEvent(Object token, boolean handled) { 3851 QueuedInputEvent q = (QueuedInputEvent)token; 3852 if (handled) { 3853 finish(q, true); 3854 return; 3855 } 3856 forward(q); 3857 } 3858 } 3859 3860 /** 3861 * Delivers pre-ime input events to the view hierarchy. 3862 * Does not support pointer events. 3863 */ 3864 final class ViewPreImeInputStage extends InputStage { 3865 public ViewPreImeInputStage(InputStage next) { 3866 super(next); 3867 } 3868 3869 @Override 3870 protected int onProcess(QueuedInputEvent q) { 3871 if (q.mEvent instanceof KeyEvent) { 3872 return processKeyEvent(q); 3873 } 3874 return FORWARD; 3875 } 3876 3877 private int processKeyEvent(QueuedInputEvent q) { 3878 final KeyEvent event = (KeyEvent)q.mEvent; 3879 if (mView.dispatchKeyEventPreIme(event)) { 3880 return FINISH_HANDLED; 3881 } 3882 return FORWARD; 3883 } 3884 } 3885 3886 /** 3887 * Delivers input events to the ime. 3888 * Does not support pointer events. 3889 */ 3890 final class ImeInputStage extends AsyncInputStage 3891 implements InputMethodManager.FinishedInputEventCallback { 3892 public ImeInputStage(InputStage next, String traceCounter) { 3893 super(next, traceCounter); 3894 } 3895 3896 @Override 3897 protected int onProcess(QueuedInputEvent q) { 3898 if (mLastWasImTarget && !isInLocalFocusMode()) { 3899 InputMethodManager imm = InputMethodManager.peekInstance(); 3900 if (imm != null) { 3901 final InputEvent event = q.mEvent; 3902 if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event); 3903 int result = imm.dispatchInputEvent(event, q, this, mHandler); 3904 if (result == InputMethodManager.DISPATCH_HANDLED) { 3905 return FINISH_HANDLED; 3906 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 3907 // The IME could not handle it, so skip along to the next InputStage 3908 return FORWARD; 3909 } else { 3910 return DEFER; // callback will be invoked later 3911 } 3912 } 3913 } 3914 return FORWARD; 3915 } 3916 3917 @Override 3918 public void onFinishedInputEvent(Object token, boolean handled) { 3919 QueuedInputEvent q = (QueuedInputEvent)token; 3920 if (handled) { 3921 finish(q, true); 3922 return; 3923 } 3924 forward(q); 3925 } 3926 } 3927 3928 /** 3929 * Performs early processing of post-ime input events. 3930 */ 3931 final class EarlyPostImeInputStage extends InputStage { 3932 public EarlyPostImeInputStage(InputStage next) { 3933 super(next); 3934 } 3935 3936 @Override 3937 protected int onProcess(QueuedInputEvent q) { 3938 if (q.mEvent instanceof KeyEvent) { 3939 return processKeyEvent(q); 3940 } else { 3941 final int source = q.mEvent.getSource(); 3942 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3943 return processPointerEvent(q); 3944 } 3945 } 3946 return FORWARD; 3947 } 3948 3949 private int processKeyEvent(QueuedInputEvent q) { 3950 final KeyEvent event = (KeyEvent)q.mEvent; 3951 3952 // If the key's purpose is to exit touch mode then we consume it 3953 // and consider it handled. 3954 if (checkForLeavingTouchModeAndConsume(event)) { 3955 return FINISH_HANDLED; 3956 } 3957 3958 // Make sure the fallback event policy sees all keys that will be 3959 // delivered to the view hierarchy. 3960 mFallbackEventHandler.preDispatchKeyEvent(event); 3961 return FORWARD; 3962 } 3963 3964 private int processPointerEvent(QueuedInputEvent q) { 3965 final MotionEvent event = (MotionEvent)q.mEvent; 3966 3967 // Translate the pointer event for compatibility, if needed. 3968 if (mTranslator != null) { 3969 mTranslator.translateEventInScreenToAppWindow(event); 3970 } 3971 3972 // Enter touch mode on down or scroll. 3973 final int action = event.getAction(); 3974 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3975 ensureTouchMode(true); 3976 } 3977 3978 // Offset the scroll position. 3979 if (mCurScrollY != 0) { 3980 event.offsetLocation(0, mCurScrollY); 3981 } 3982 3983 // Remember the touch position for possible drag-initiation. 3984 if (event.isTouchEvent()) { 3985 mLastTouchPoint.x = event.getRawX(); 3986 mLastTouchPoint.y = event.getRawY(); 3987 } 3988 return FORWARD; 3989 } 3990 } 3991 3992 /** 3993 * Delivers post-ime input events to a native activity. 3994 */ 3995 final class NativePostImeInputStage extends AsyncInputStage 3996 implements InputQueue.FinishedInputEventCallback { 3997 public NativePostImeInputStage(InputStage next, String traceCounter) { 3998 super(next, traceCounter); 3999 } 4000 4001 @Override 4002 protected int onProcess(QueuedInputEvent q) { 4003 if (mInputQueue != null) { 4004 mInputQueue.sendInputEvent(q.mEvent, q, false, this); 4005 return DEFER; 4006 } 4007 return FORWARD; 4008 } 4009 4010 @Override 4011 public void onFinishedInputEvent(Object token, boolean handled) { 4012 QueuedInputEvent q = (QueuedInputEvent)token; 4013 if (handled) { 4014 finish(q, true); 4015 return; 4016 } 4017 forward(q); 4018 } 4019 } 4020 4021 /** 4022 * Delivers post-ime input events to the view hierarchy. 4023 */ 4024 final class ViewPostImeInputStage extends InputStage { 4025 public ViewPostImeInputStage(InputStage next) { 4026 super(next); 4027 } 4028 4029 @Override 4030 protected int onProcess(QueuedInputEvent q) { 4031 if (q.mEvent instanceof KeyEvent) { 4032 return processKeyEvent(q); 4033 } else { 4034 // If delivering a new non-key event, make sure the window is 4035 // now allowed to start updating. 4036 handleDispatchDoneAnimating(); 4037 final int source = q.mEvent.getSource(); 4038 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 4039 return processPointerEvent(q); 4040 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4041 return processTrackballEvent(q); 4042 } else { 4043 return processGenericMotionEvent(q); 4044 } 4045 } 4046 } 4047 4048 @Override 4049 protected void onDeliverToNext(QueuedInputEvent q) { 4050 if (mUnbufferedInputDispatch 4051 && q.mEvent instanceof MotionEvent 4052 && ((MotionEvent)q.mEvent).isTouchEvent() 4053 && isTerminalInputEvent(q.mEvent)) { 4054 mUnbufferedInputDispatch = false; 4055 scheduleConsumeBatchedInput(); 4056 } 4057 super.onDeliverToNext(q); 4058 } 4059 4060 private int processKeyEvent(QueuedInputEvent q) { 4061 final KeyEvent event = (KeyEvent)q.mEvent; 4062 4063 if (event.getAction() != KeyEvent.ACTION_UP) { 4064 // If delivering a new key event, make sure the window is 4065 // now allowed to start updating. 4066 handleDispatchDoneAnimating(); 4067 } 4068 4069 // Deliver the key to the view hierarchy. 4070 if (mView.dispatchKeyEvent(event)) { 4071 return FINISH_HANDLED; 4072 } 4073 4074 if (shouldDropInputEvent(q)) { 4075 return FINISH_NOT_HANDLED; 4076 } 4077 4078 // If the Control modifier is held, try to interpret the key as a shortcut. 4079 if (event.getAction() == KeyEvent.ACTION_DOWN 4080 && event.isCtrlPressed() 4081 && event.getRepeatCount() == 0 4082 && !KeyEvent.isModifierKey(event.getKeyCode())) { 4083 if (mView.dispatchKeyShortcutEvent(event)) { 4084 return FINISH_HANDLED; 4085 } 4086 if (shouldDropInputEvent(q)) { 4087 return FINISH_NOT_HANDLED; 4088 } 4089 } 4090 4091 // Apply the fallback event policy. 4092 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 4093 return FINISH_HANDLED; 4094 } 4095 if (shouldDropInputEvent(q)) { 4096 return FINISH_NOT_HANDLED; 4097 } 4098 4099 // Handle automatic focus changes. 4100 if (event.getAction() == KeyEvent.ACTION_DOWN) { 4101 int direction = 0; 4102 switch (event.getKeyCode()) { 4103 case KeyEvent.KEYCODE_DPAD_LEFT: 4104 if (event.hasNoModifiers()) { 4105 direction = View.FOCUS_LEFT; 4106 } 4107 break; 4108 case KeyEvent.KEYCODE_DPAD_RIGHT: 4109 if (event.hasNoModifiers()) { 4110 direction = View.FOCUS_RIGHT; 4111 } 4112 break; 4113 case KeyEvent.KEYCODE_DPAD_UP: 4114 if (event.hasNoModifiers()) { 4115 direction = View.FOCUS_UP; 4116 } 4117 break; 4118 case KeyEvent.KEYCODE_DPAD_DOWN: 4119 if (event.hasNoModifiers()) { 4120 direction = View.FOCUS_DOWN; 4121 } 4122 break; 4123 case KeyEvent.KEYCODE_TAB: 4124 if (event.hasNoModifiers()) { 4125 direction = View.FOCUS_FORWARD; 4126 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4127 direction = View.FOCUS_BACKWARD; 4128 } 4129 break; 4130 } 4131 if (direction != 0) { 4132 View focused = mView.findFocus(); 4133 if (focused != null) { 4134 View v = focused.focusSearch(direction); 4135 if (v != null && v != focused) { 4136 // do the math the get the interesting rect 4137 // of previous focused into the coord system of 4138 // newly focused view 4139 focused.getFocusedRect(mTempRect); 4140 if (mView instanceof ViewGroup) { 4141 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 4142 focused, mTempRect); 4143 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 4144 v, mTempRect); 4145 } 4146 if (v.requestFocus(direction, mTempRect)) { 4147 playSoundEffect(SoundEffectConstants 4148 .getContantForFocusDirection(direction)); 4149 return FINISH_HANDLED; 4150 } 4151 } 4152 4153 // Give the focused view a last chance to handle the dpad key. 4154 if (mView.dispatchUnhandledMove(focused, direction)) { 4155 return FINISH_HANDLED; 4156 } 4157 } else { 4158 // find the best view to give focus to in this non-touch-mode with no-focus 4159 View v = focusSearch(null, direction); 4160 if (v != null && v.requestFocus(direction)) { 4161 return FINISH_HANDLED; 4162 } 4163 } 4164 } 4165 } 4166 return FORWARD; 4167 } 4168 4169 private int processPointerEvent(QueuedInputEvent q) { 4170 final MotionEvent event = (MotionEvent)q.mEvent; 4171 4172 mAttachInfo.mUnbufferedDispatchRequested = false; 4173 boolean handled = mView.dispatchPointerEvent(event); 4174 if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) { 4175 mUnbufferedInputDispatch = true; 4176 if (mConsumeBatchedInputScheduled) { 4177 scheduleConsumeBatchedInputImmediately(); 4178 } 4179 } 4180 return handled ? FINISH_HANDLED : FORWARD; 4181 } 4182 4183 private int processTrackballEvent(QueuedInputEvent q) { 4184 final MotionEvent event = (MotionEvent)q.mEvent; 4185 4186 if (mView.dispatchTrackballEvent(event)) { 4187 return FINISH_HANDLED; 4188 } 4189 return FORWARD; 4190 } 4191 4192 private int processGenericMotionEvent(QueuedInputEvent q) { 4193 final MotionEvent event = (MotionEvent)q.mEvent; 4194 4195 // Deliver the event to the view. 4196 if (mView.dispatchGenericMotionEvent(event)) { 4197 return FINISH_HANDLED; 4198 } 4199 return FORWARD; 4200 } 4201 } 4202 4203 /** 4204 * Performs synthesis of new input events from unhandled input events. 4205 */ 4206 final class SyntheticInputStage extends InputStage { 4207 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 4208 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 4209 private final SyntheticTouchNavigationHandler mTouchNavigation = 4210 new SyntheticTouchNavigationHandler(); 4211 private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler(); 4212 4213 public SyntheticInputStage() { 4214 super(null); 4215 } 4216 4217 @Override 4218 protected int onProcess(QueuedInputEvent q) { 4219 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 4220 if (q.mEvent instanceof MotionEvent) { 4221 final MotionEvent event = (MotionEvent)q.mEvent; 4222 final int source = event.getSource(); 4223 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4224 mTrackball.process(event); 4225 return FINISH_HANDLED; 4226 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4227 mJoystick.process(event); 4228 return FINISH_HANDLED; 4229 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4230 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4231 mTouchNavigation.process(event); 4232 return FINISH_HANDLED; 4233 } 4234 } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) { 4235 mKeyboard.process((KeyEvent)q.mEvent); 4236 return FINISH_HANDLED; 4237 } 4238 4239 return FORWARD; 4240 } 4241 4242 @Override 4243 protected void onDeliverToNext(QueuedInputEvent q) { 4244 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 4245 // Cancel related synthetic events if any prior stage has handled the event. 4246 if (q.mEvent instanceof MotionEvent) { 4247 final MotionEvent event = (MotionEvent)q.mEvent; 4248 final int source = event.getSource(); 4249 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4250 mTrackball.cancel(event); 4251 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4252 mJoystick.cancel(event); 4253 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4254 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4255 mTouchNavigation.cancel(event); 4256 } 4257 } 4258 } 4259 super.onDeliverToNext(q); 4260 } 4261 } 4262 4263 /** 4264 * Creates dpad events from unhandled trackball movements. 4265 */ 4266 final class SyntheticTrackballHandler { 4267 private final TrackballAxis mX = new TrackballAxis(); 4268 private final TrackballAxis mY = new TrackballAxis(); 4269 private long mLastTime; 4270 4271 public void process(MotionEvent event) { 4272 // Translate the trackball event into DPAD keys and try to deliver those. 4273 long curTime = SystemClock.uptimeMillis(); 4274 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 4275 // It has been too long since the last movement, 4276 // so restart at the beginning. 4277 mX.reset(0); 4278 mY.reset(0); 4279 mLastTime = curTime; 4280 } 4281 4282 final int action = event.getAction(); 4283 final int metaState = event.getMetaState(); 4284 switch (action) { 4285 case MotionEvent.ACTION_DOWN: 4286 mX.reset(2); 4287 mY.reset(2); 4288 enqueueInputEvent(new KeyEvent(curTime, curTime, 4289 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4290 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4291 InputDevice.SOURCE_KEYBOARD)); 4292 break; 4293 case MotionEvent.ACTION_UP: 4294 mX.reset(2); 4295 mY.reset(2); 4296 enqueueInputEvent(new KeyEvent(curTime, curTime, 4297 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4298 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4299 InputDevice.SOURCE_KEYBOARD)); 4300 break; 4301 } 4302 4303 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step=" 4304 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 4305 + " move=" + event.getX() 4306 + " / Y=" + mY.position + " step=" 4307 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 4308 + " move=" + event.getY()); 4309 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 4310 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 4311 4312 // Generate DPAD events based on the trackball movement. 4313 // We pick the axis that has moved the most as the direction of 4314 // the DPAD. When we generate DPAD events for one axis, then the 4315 // other axis is reset -- we don't want to perform DPAD jumps due 4316 // to slight movements in the trackball when making major movements 4317 // along the other axis. 4318 int keycode = 0; 4319 int movement = 0; 4320 float accel = 1; 4321 if (xOff > yOff) { 4322 movement = mX.generate(); 4323 if (movement != 0) { 4324 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 4325 : KeyEvent.KEYCODE_DPAD_LEFT; 4326 accel = mX.acceleration; 4327 mY.reset(2); 4328 } 4329 } else if (yOff > 0) { 4330 movement = mY.generate(); 4331 if (movement != 0) { 4332 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 4333 : KeyEvent.KEYCODE_DPAD_UP; 4334 accel = mY.acceleration; 4335 mX.reset(2); 4336 } 4337 } 4338 4339 if (keycode != 0) { 4340 if (movement < 0) movement = -movement; 4341 int accelMovement = (int)(movement * accel); 4342 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 4343 + " accelMovement=" + accelMovement 4344 + " accel=" + accel); 4345 if (accelMovement > movement) { 4346 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4347 + keycode); 4348 movement--; 4349 int repeatCount = accelMovement - movement; 4350 enqueueInputEvent(new KeyEvent(curTime, curTime, 4351 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4352 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4353 InputDevice.SOURCE_KEYBOARD)); 4354 } 4355 while (movement > 0) { 4356 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4357 + keycode); 4358 movement--; 4359 curTime = SystemClock.uptimeMillis(); 4360 enqueueInputEvent(new KeyEvent(curTime, curTime, 4361 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4362 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4363 InputDevice.SOURCE_KEYBOARD)); 4364 enqueueInputEvent(new KeyEvent(curTime, curTime, 4365 KeyEvent.ACTION_UP, keycode, 0, metaState, 4366 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4367 InputDevice.SOURCE_KEYBOARD)); 4368 } 4369 mLastTime = curTime; 4370 } 4371 } 4372 4373 public void cancel(MotionEvent event) { 4374 mLastTime = Integer.MIN_VALUE; 4375 4376 // If we reach this, we consumed a trackball event. 4377 // Because we will not translate the trackball event into a key event, 4378 // touch mode will not exit, so we exit touch mode here. 4379 if (mView != null && mAdded) { 4380 ensureTouchMode(false); 4381 } 4382 } 4383 } 4384 4385 /** 4386 * Maintains state information for a single trackball axis, generating 4387 * discrete (DPAD) movements based on raw trackball motion. 4388 */ 4389 static final class TrackballAxis { 4390 /** 4391 * The maximum amount of acceleration we will apply. 4392 */ 4393 static final float MAX_ACCELERATION = 20; 4394 4395 /** 4396 * The maximum amount of time (in milliseconds) between events in order 4397 * for us to consider the user to be doing fast trackball movements, 4398 * and thus apply an acceleration. 4399 */ 4400 static final long FAST_MOVE_TIME = 150; 4401 4402 /** 4403 * Scaling factor to the time (in milliseconds) between events to how 4404 * much to multiple/divide the current acceleration. When movement 4405 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4406 * FAST_MOVE_TIME it divides it. 4407 */ 4408 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4409 4410 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4411 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4412 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4413 4414 float position; 4415 float acceleration = 1; 4416 long lastMoveTime = 0; 4417 int step; 4418 int dir; 4419 int nonAccelMovement; 4420 4421 void reset(int _step) { 4422 position = 0; 4423 acceleration = 1; 4424 lastMoveTime = 0; 4425 step = _step; 4426 dir = 0; 4427 } 4428 4429 /** 4430 * Add trackball movement into the state. If the direction of movement 4431 * has been reversed, the state is reset before adding the 4432 * movement (so that you don't have to compensate for any previously 4433 * collected movement before see the result of the movement in the 4434 * new direction). 4435 * 4436 * @return Returns the absolute value of the amount of movement 4437 * collected so far. 4438 */ 4439 float collect(float off, long time, String axis) { 4440 long normTime; 4441 if (off > 0) { 4442 normTime = (long)(off * FAST_MOVE_TIME); 4443 if (dir < 0) { 4444 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4445 position = 0; 4446 step = 0; 4447 acceleration = 1; 4448 lastMoveTime = 0; 4449 } 4450 dir = 1; 4451 } else if (off < 0) { 4452 normTime = (long)((-off) * FAST_MOVE_TIME); 4453 if (dir > 0) { 4454 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4455 position = 0; 4456 step = 0; 4457 acceleration = 1; 4458 lastMoveTime = 0; 4459 } 4460 dir = -1; 4461 } else { 4462 normTime = 0; 4463 } 4464 4465 // The number of milliseconds between each movement that is 4466 // considered "normal" and will not result in any acceleration 4467 // or deceleration, scaled by the offset we have here. 4468 if (normTime > 0) { 4469 long delta = time - lastMoveTime; 4470 lastMoveTime = time; 4471 float acc = acceleration; 4472 if (delta < normTime) { 4473 // The user is scrolling rapidly, so increase acceleration. 4474 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4475 if (scale > 1) acc *= scale; 4476 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4477 + off + " normTime=" + normTime + " delta=" + delta 4478 + " scale=" + scale + " acc=" + acc); 4479 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4480 } else { 4481 // The user is scrolling slowly, so decrease acceleration. 4482 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4483 if (scale > 1) acc /= scale; 4484 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4485 + off + " normTime=" + normTime + " delta=" + delta 4486 + " scale=" + scale + " acc=" + acc); 4487 acceleration = acc > 1 ? acc : 1; 4488 } 4489 } 4490 position += off; 4491 return Math.abs(position); 4492 } 4493 4494 /** 4495 * Generate the number of discrete movement events appropriate for 4496 * the currently collected trackball movement. 4497 * 4498 * @return Returns the number of discrete movements, either positive 4499 * or negative, or 0 if there is not enough trackball movement yet 4500 * for a discrete movement. 4501 */ 4502 int generate() { 4503 int movement = 0; 4504 nonAccelMovement = 0; 4505 do { 4506 final int dir = position >= 0 ? 1 : -1; 4507 switch (step) { 4508 // If we are going to execute the first step, then we want 4509 // to do this as soon as possible instead of waiting for 4510 // a full movement, in order to make things look responsive. 4511 case 0: 4512 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4513 return movement; 4514 } 4515 movement += dir; 4516 nonAccelMovement += dir; 4517 step = 1; 4518 break; 4519 // If we have generated the first movement, then we need 4520 // to wait for the second complete trackball motion before 4521 // generating the second discrete movement. 4522 case 1: 4523 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4524 return movement; 4525 } 4526 movement += dir; 4527 nonAccelMovement += dir; 4528 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4529 step = 2; 4530 break; 4531 // After the first two, we generate discrete movements 4532 // consistently with the trackball, applying an acceleration 4533 // if the trackball is moving quickly. This is a simple 4534 // acceleration on top of what we already compute based 4535 // on how quickly the wheel is being turned, to apply 4536 // a longer increasing acceleration to continuous movement 4537 // in one direction. 4538 default: 4539 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4540 return movement; 4541 } 4542 movement += dir; 4543 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4544 float acc = acceleration; 4545 acc *= 1.1f; 4546 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4547 break; 4548 } 4549 } while (true); 4550 } 4551 } 4552 4553 /** 4554 * Creates dpad events from unhandled joystick movements. 4555 */ 4556 final class SyntheticJoystickHandler extends Handler { 4557 private final static String TAG = "SyntheticJoystickHandler"; 4558 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4559 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4560 4561 private int mLastXDirection; 4562 private int mLastYDirection; 4563 private int mLastXKeyCode; 4564 private int mLastYKeyCode; 4565 4566 public SyntheticJoystickHandler() { 4567 super(true); 4568 } 4569 4570 @Override 4571 public void handleMessage(Message msg) { 4572 switch (msg.what) { 4573 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4574 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4575 KeyEvent oldEvent = (KeyEvent)msg.obj; 4576 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4577 SystemClock.uptimeMillis(), 4578 oldEvent.getRepeatCount() + 1); 4579 if (mAttachInfo.mHasWindowFocus) { 4580 enqueueInputEvent(e); 4581 Message m = obtainMessage(msg.what, e); 4582 m.setAsynchronous(true); 4583 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4584 } 4585 } break; 4586 } 4587 } 4588 4589 public void process(MotionEvent event) { 4590 switch(event.getActionMasked()) { 4591 case MotionEvent.ACTION_CANCEL: 4592 cancel(event); 4593 break; 4594 case MotionEvent.ACTION_MOVE: 4595 update(event, true); 4596 break; 4597 default: 4598 Log.w(TAG, "Unexpected action: " + event.getActionMasked()); 4599 } 4600 } 4601 4602 private void cancel(MotionEvent event) { 4603 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4604 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4605 update(event, false); 4606 } 4607 4608 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4609 final long time = event.getEventTime(); 4610 final int metaState = event.getMetaState(); 4611 final int deviceId = event.getDeviceId(); 4612 final int source = event.getSource(); 4613 4614 int xDirection = joystickAxisValueToDirection( 4615 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4616 if (xDirection == 0) { 4617 xDirection = joystickAxisValueToDirection(event.getX()); 4618 } 4619 4620 int yDirection = joystickAxisValueToDirection( 4621 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4622 if (yDirection == 0) { 4623 yDirection = joystickAxisValueToDirection(event.getY()); 4624 } 4625 4626 if (xDirection != mLastXDirection) { 4627 if (mLastXKeyCode != 0) { 4628 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4629 enqueueInputEvent(new KeyEvent(time, time, 4630 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4631 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4632 mLastXKeyCode = 0; 4633 } 4634 4635 mLastXDirection = xDirection; 4636 4637 if (xDirection != 0 && synthesizeNewKeys) { 4638 mLastXKeyCode = xDirection > 0 4639 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4640 final KeyEvent e = new KeyEvent(time, time, 4641 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4642 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4643 enqueueInputEvent(e); 4644 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4645 m.setAsynchronous(true); 4646 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4647 } 4648 } 4649 4650 if (yDirection != mLastYDirection) { 4651 if (mLastYKeyCode != 0) { 4652 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4653 enqueueInputEvent(new KeyEvent(time, time, 4654 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4655 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4656 mLastYKeyCode = 0; 4657 } 4658 4659 mLastYDirection = yDirection; 4660 4661 if (yDirection != 0 && synthesizeNewKeys) { 4662 mLastYKeyCode = yDirection > 0 4663 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4664 final KeyEvent e = new KeyEvent(time, time, 4665 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4666 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4667 enqueueInputEvent(e); 4668 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4669 m.setAsynchronous(true); 4670 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4671 } 4672 } 4673 } 4674 4675 private int joystickAxisValueToDirection(float value) { 4676 if (value >= 0.5f) { 4677 return 1; 4678 } else if (value <= -0.5f) { 4679 return -1; 4680 } else { 4681 return 0; 4682 } 4683 } 4684 } 4685 4686 /** 4687 * Creates dpad events from unhandled touch navigation movements. 4688 */ 4689 final class SyntheticTouchNavigationHandler extends Handler { 4690 private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 4691 private static final boolean LOCAL_DEBUG = false; 4692 4693 // Assumed nominal width and height in millimeters of a touch navigation pad, 4694 // if no resolution information is available from the input system. 4695 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 4696 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 4697 4698 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 4699 4700 // The nominal distance traveled to move by one unit. 4701 private static final int TICK_DISTANCE_MILLIMETERS = 12; 4702 4703 // Minimum and maximum fling velocity in ticks per second. 4704 // The minimum velocity should be set such that we perform enough ticks per 4705 // second that the fling appears to be fluid. For example, if we set the minimum 4706 // to 2 ticks per second, then there may be up to half a second delay between the next 4707 // to last and last ticks which is noticeably discrete and jerky. This value should 4708 // probably not be set to anything less than about 4. 4709 // If fling accuracy is a problem then consider tuning the tick distance instead. 4710 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 4711 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 4712 4713 // Fling velocity decay factor applied after each new key is emitted. 4714 // This parameter controls the deceleration and overall duration of the fling. 4715 // The fling stops automatically when its velocity drops below the minimum 4716 // fling velocity defined above. 4717 private static final float FLING_TICK_DECAY = 0.8f; 4718 4719 /* The input device that we are tracking. */ 4720 4721 private int mCurrentDeviceId = -1; 4722 private int mCurrentSource; 4723 private boolean mCurrentDeviceSupported; 4724 4725 /* Configuration for the current input device. */ 4726 4727 // The scaled tick distance. A movement of this amount should generally translate 4728 // into a single dpad event in a given direction. 4729 private float mConfigTickDistance; 4730 4731 // The minimum and maximum scaled fling velocity. 4732 private float mConfigMinFlingVelocity; 4733 private float mConfigMaxFlingVelocity; 4734 4735 /* Tracking state. */ 4736 4737 // The velocity tracker for detecting flings. 4738 private VelocityTracker mVelocityTracker; 4739 4740 // The active pointer id, or -1 if none. 4741 private int mActivePointerId = -1; 4742 4743 // Location where tracking started. 4744 private float mStartX; 4745 private float mStartY; 4746 4747 // Most recently observed position. 4748 private float mLastX; 4749 private float mLastY; 4750 4751 // Accumulated movement delta since the last direction key was sent. 4752 private float mAccumulatedX; 4753 private float mAccumulatedY; 4754 4755 // Set to true if any movement was delivered to the app. 4756 // Implies that tap slop was exceeded. 4757 private boolean mConsumedMovement; 4758 4759 // The most recently sent key down event. 4760 // The keycode remains set until the direction changes or a fling ends 4761 // so that repeated key events may be generated as required. 4762 private long mPendingKeyDownTime; 4763 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4764 private int mPendingKeyRepeatCount; 4765 private int mPendingKeyMetaState; 4766 4767 // The current fling velocity while a fling is in progress. 4768 private boolean mFlinging; 4769 private float mFlingVelocity; 4770 4771 public SyntheticTouchNavigationHandler() { 4772 super(true); 4773 } 4774 4775 public void process(MotionEvent event) { 4776 // Update the current device information. 4777 final long time = event.getEventTime(); 4778 final int deviceId = event.getDeviceId(); 4779 final int source = event.getSource(); 4780 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 4781 finishKeys(time); 4782 finishTracking(time); 4783 mCurrentDeviceId = deviceId; 4784 mCurrentSource = source; 4785 mCurrentDeviceSupported = false; 4786 InputDevice device = event.getDevice(); 4787 if (device != null) { 4788 // In order to support an input device, we must know certain 4789 // characteristics about it, such as its size and resolution. 4790 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 4791 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 4792 if (xRange != null && yRange != null) { 4793 mCurrentDeviceSupported = true; 4794 4795 // Infer the resolution if it not actually known. 4796 float xRes = xRange.getResolution(); 4797 if (xRes <= 0) { 4798 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 4799 } 4800 float yRes = yRange.getResolution(); 4801 if (yRes <= 0) { 4802 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 4803 } 4804 float nominalRes = (xRes + yRes) * 0.5f; 4805 4806 // Precompute all of the configuration thresholds we will need. 4807 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 4808 mConfigMinFlingVelocity = 4809 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4810 mConfigMaxFlingVelocity = 4811 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4812 4813 if (LOCAL_DEBUG) { 4814 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 4815 + " (" + Integer.toHexString(mCurrentSource) + "): " 4816 + ", mConfigTickDistance=" + mConfigTickDistance 4817 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 4818 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 4819 } 4820 } 4821 } 4822 } 4823 if (!mCurrentDeviceSupported) { 4824 return; 4825 } 4826 4827 // Handle the event. 4828 final int action = event.getActionMasked(); 4829 switch (action) { 4830 case MotionEvent.ACTION_DOWN: { 4831 boolean caughtFling = mFlinging; 4832 finishKeys(time); 4833 finishTracking(time); 4834 mActivePointerId = event.getPointerId(0); 4835 mVelocityTracker = VelocityTracker.obtain(); 4836 mVelocityTracker.addMovement(event); 4837 mStartX = event.getX(); 4838 mStartY = event.getY(); 4839 mLastX = mStartX; 4840 mLastY = mStartY; 4841 mAccumulatedX = 0; 4842 mAccumulatedY = 0; 4843 4844 // If we caught a fling, then pretend that the tap slop has already 4845 // been exceeded to suppress taps whose only purpose is to stop the fling. 4846 mConsumedMovement = caughtFling; 4847 break; 4848 } 4849 4850 case MotionEvent.ACTION_MOVE: 4851 case MotionEvent.ACTION_UP: { 4852 if (mActivePointerId < 0) { 4853 break; 4854 } 4855 final int index = event.findPointerIndex(mActivePointerId); 4856 if (index < 0) { 4857 finishKeys(time); 4858 finishTracking(time); 4859 break; 4860 } 4861 4862 mVelocityTracker.addMovement(event); 4863 final float x = event.getX(index); 4864 final float y = event.getY(index); 4865 mAccumulatedX += x - mLastX; 4866 mAccumulatedY += y - mLastY; 4867 mLastX = x; 4868 mLastY = y; 4869 4870 // Consume any accumulated movement so far. 4871 final int metaState = event.getMetaState(); 4872 consumeAccumulatedMovement(time, metaState); 4873 4874 // Detect taps and flings. 4875 if (action == MotionEvent.ACTION_UP) { 4876 if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4877 // It might be a fling. 4878 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 4879 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 4880 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 4881 if (!startFling(time, vx, vy)) { 4882 finishKeys(time); 4883 } 4884 } 4885 finishTracking(time); 4886 } 4887 break; 4888 } 4889 4890 case MotionEvent.ACTION_CANCEL: { 4891 finishKeys(time); 4892 finishTracking(time); 4893 break; 4894 } 4895 } 4896 } 4897 4898 public void cancel(MotionEvent event) { 4899 if (mCurrentDeviceId == event.getDeviceId() 4900 && mCurrentSource == event.getSource()) { 4901 final long time = event.getEventTime(); 4902 finishKeys(time); 4903 finishTracking(time); 4904 } 4905 } 4906 4907 private void finishKeys(long time) { 4908 cancelFling(); 4909 sendKeyUp(time); 4910 } 4911 4912 private void finishTracking(long time) { 4913 if (mActivePointerId >= 0) { 4914 mActivePointerId = -1; 4915 mVelocityTracker.recycle(); 4916 mVelocityTracker = null; 4917 } 4918 } 4919 4920 private void consumeAccumulatedMovement(long time, int metaState) { 4921 final float absX = Math.abs(mAccumulatedX); 4922 final float absY = Math.abs(mAccumulatedY); 4923 if (absX >= absY) { 4924 if (absX >= mConfigTickDistance) { 4925 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 4926 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 4927 mAccumulatedY = 0; 4928 mConsumedMovement = true; 4929 } 4930 } else { 4931 if (absY >= mConfigTickDistance) { 4932 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 4933 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 4934 mAccumulatedX = 0; 4935 mConsumedMovement = true; 4936 } 4937 } 4938 } 4939 4940 private float consumeAccumulatedMovement(long time, int metaState, 4941 float accumulator, int negativeKeyCode, int positiveKeyCode) { 4942 while (accumulator <= -mConfigTickDistance) { 4943 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 4944 accumulator += mConfigTickDistance; 4945 } 4946 while (accumulator >= mConfigTickDistance) { 4947 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 4948 accumulator -= mConfigTickDistance; 4949 } 4950 return accumulator; 4951 } 4952 4953 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 4954 if (mPendingKeyCode != keyCode) { 4955 sendKeyUp(time); 4956 mPendingKeyDownTime = time; 4957 mPendingKeyCode = keyCode; 4958 mPendingKeyRepeatCount = 0; 4959 } else { 4960 mPendingKeyRepeatCount += 1; 4961 } 4962 mPendingKeyMetaState = metaState; 4963 4964 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 4965 // but it doesn't quite make sense when simulating the events in this way. 4966 if (LOCAL_DEBUG) { 4967 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 4968 + ", repeatCount=" + mPendingKeyRepeatCount 4969 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4970 } 4971 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4972 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 4973 mPendingKeyMetaState, mCurrentDeviceId, 4974 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 4975 } 4976 4977 private void sendKeyUp(long time) { 4978 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4979 if (LOCAL_DEBUG) { 4980 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 4981 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4982 } 4983 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4984 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 4985 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 4986 mCurrentSource)); 4987 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4988 } 4989 } 4990 4991 private boolean startFling(long time, float vx, float vy) { 4992 if (LOCAL_DEBUG) { 4993 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 4994 + ", min=" + mConfigMinFlingVelocity); 4995 } 4996 4997 // Flings must be oriented in the same direction as the preceding movements. 4998 switch (mPendingKeyCode) { 4999 case KeyEvent.KEYCODE_DPAD_LEFT: 5000 if (-vx >= mConfigMinFlingVelocity 5001 && Math.abs(vy) < mConfigMinFlingVelocity) { 5002 mFlingVelocity = -vx; 5003 break; 5004 } 5005 return false; 5006 5007 case KeyEvent.KEYCODE_DPAD_RIGHT: 5008 if (vx >= mConfigMinFlingVelocity 5009 && Math.abs(vy) < mConfigMinFlingVelocity) { 5010 mFlingVelocity = vx; 5011 break; 5012 } 5013 return false; 5014 5015 case KeyEvent.KEYCODE_DPAD_UP: 5016 if (-vy >= mConfigMinFlingVelocity 5017 && Math.abs(vx) < mConfigMinFlingVelocity) { 5018 mFlingVelocity = -vy; 5019 break; 5020 } 5021 return false; 5022 5023 case KeyEvent.KEYCODE_DPAD_DOWN: 5024 if (vy >= mConfigMinFlingVelocity 5025 && Math.abs(vx) < mConfigMinFlingVelocity) { 5026 mFlingVelocity = vy; 5027 break; 5028 } 5029 return false; 5030 } 5031 5032 // Post the first fling event. 5033 mFlinging = postFling(time); 5034 return mFlinging; 5035 } 5036 5037 private boolean postFling(long time) { 5038 // The idea here is to estimate the time when the pointer would have 5039 // traveled one tick distance unit given the current fling velocity. 5040 // This effect creates continuity of motion. 5041 if (mFlingVelocity >= mConfigMinFlingVelocity) { 5042 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 5043 postAtTime(mFlingRunnable, time + delay); 5044 if (LOCAL_DEBUG) { 5045 Log.d(LOCAL_TAG, "Posted fling: velocity=" 5046 + mFlingVelocity + ", delay=" + delay 5047 + ", keyCode=" + mPendingKeyCode); 5048 } 5049 return true; 5050 } 5051 return false; 5052 } 5053 5054 private void cancelFling() { 5055 if (mFlinging) { 5056 removeCallbacks(mFlingRunnable); 5057 mFlinging = false; 5058 } 5059 } 5060 5061 private final Runnable mFlingRunnable = new Runnable() { 5062 @Override 5063 public void run() { 5064 final long time = SystemClock.uptimeMillis(); 5065 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 5066 mFlingVelocity *= FLING_TICK_DECAY; 5067 if (!postFling(time)) { 5068 mFlinging = false; 5069 finishKeys(time); 5070 } 5071 } 5072 }; 5073 } 5074 5075 final class SyntheticKeyboardHandler { 5076 public void process(KeyEvent event) { 5077 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) { 5078 return; 5079 } 5080 5081 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5082 final int keyCode = event.getKeyCode(); 5083 final int metaState = event.getMetaState(); 5084 5085 // Check for fallback actions specified by the key character map. 5086 KeyCharacterMap.FallbackAction fallbackAction = 5087 kcm.getFallbackAction(keyCode, metaState); 5088 if (fallbackAction != null) { 5089 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5090 KeyEvent fallbackEvent = KeyEvent.obtain( 5091 event.getDownTime(), event.getEventTime(), 5092 event.getAction(), fallbackAction.keyCode, 5093 event.getRepeatCount(), fallbackAction.metaState, 5094 event.getDeviceId(), event.getScanCode(), 5095 flags, event.getSource(), null); 5096 fallbackAction.recycle(); 5097 enqueueInputEvent(fallbackEvent); 5098 } 5099 } 5100 } 5101 5102 /** 5103 * Returns true if the key is used for keyboard navigation. 5104 * @param keyEvent The key event. 5105 * @return True if the key is used for keyboard navigation. 5106 */ 5107 private static boolean isNavigationKey(KeyEvent keyEvent) { 5108 switch (keyEvent.getKeyCode()) { 5109 case KeyEvent.KEYCODE_DPAD_LEFT: 5110 case KeyEvent.KEYCODE_DPAD_RIGHT: 5111 case KeyEvent.KEYCODE_DPAD_UP: 5112 case KeyEvent.KEYCODE_DPAD_DOWN: 5113 case KeyEvent.KEYCODE_DPAD_CENTER: 5114 case KeyEvent.KEYCODE_PAGE_UP: 5115 case KeyEvent.KEYCODE_PAGE_DOWN: 5116 case KeyEvent.KEYCODE_MOVE_HOME: 5117 case KeyEvent.KEYCODE_MOVE_END: 5118 case KeyEvent.KEYCODE_TAB: 5119 case KeyEvent.KEYCODE_SPACE: 5120 case KeyEvent.KEYCODE_ENTER: 5121 return true; 5122 } 5123 return false; 5124 } 5125 5126 /** 5127 * Returns true if the key is used for typing. 5128 * @param keyEvent The key event. 5129 * @return True if the key is used for typing. 5130 */ 5131 private static boolean isTypingKey(KeyEvent keyEvent) { 5132 return keyEvent.getUnicodeChar() > 0; 5133 } 5134 5135 /** 5136 * See if the key event means we should leave touch mode (and leave touch mode if so). 5137 * @param event The key event. 5138 * @return Whether this key event should be consumed (meaning the act of 5139 * leaving touch mode alone is considered the event). 5140 */ 5141 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 5142 // Only relevant in touch mode. 5143 if (!mAttachInfo.mInTouchMode) { 5144 return false; 5145 } 5146 5147 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 5148 final int action = event.getAction(); 5149 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 5150 return false; 5151 } 5152 5153 // Don't leave touch mode if the IME told us not to. 5154 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 5155 return false; 5156 } 5157 5158 // If the key can be used for keyboard navigation then leave touch mode 5159 // and select a focused view if needed (in ensureTouchMode). 5160 // When a new focused view is selected, we consume the navigation key because 5161 // navigation doesn't make much sense unless a view already has focus so 5162 // the key's purpose is to set focus. 5163 if (isNavigationKey(event)) { 5164 return ensureTouchMode(false); 5165 } 5166 5167 // If the key can be used for typing then leave touch mode 5168 // and select a focused view if needed (in ensureTouchMode). 5169 // Always allow the view to process the typing key. 5170 if (isTypingKey(event)) { 5171 ensureTouchMode(false); 5172 return false; 5173 } 5174 5175 return false; 5176 } 5177 5178 /* drag/drop */ 5179 void setLocalDragState(Object obj) { 5180 mLocalDragState = obj; 5181 } 5182 5183 private void handleDragEvent(DragEvent event) { 5184 // From the root, only drag start/end/location are dispatched. entered/exited 5185 // are determined and dispatched by the viewgroup hierarchy, who then report 5186 // that back here for ultimate reporting back to the framework. 5187 if (mView != null && mAdded) { 5188 final int what = event.mAction; 5189 5190 if (what == DragEvent.ACTION_DRAG_EXITED) { 5191 // A direct EXITED event means that the window manager knows we've just crossed 5192 // a window boundary, so the current drag target within this one must have 5193 // just been exited. Send it the usual notifications and then we're done 5194 // for now. 5195 mView.dispatchDragEvent(event); 5196 } else { 5197 // Cache the drag description when the operation starts, then fill it in 5198 // on subsequent calls as a convenience 5199 if (what == DragEvent.ACTION_DRAG_STARTED) { 5200 mCurrentDragView = null; // Start the current-recipient tracking 5201 mDragDescription = event.mClipDescription; 5202 } else { 5203 event.mClipDescription = mDragDescription; 5204 } 5205 5206 // For events with a [screen] location, translate into window coordinates 5207 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 5208 mDragPoint.set(event.mX, event.mY); 5209 if (mTranslator != null) { 5210 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 5211 } 5212 5213 if (mCurScrollY != 0) { 5214 mDragPoint.offset(0, mCurScrollY); 5215 } 5216 5217 event.mX = mDragPoint.x; 5218 event.mY = mDragPoint.y; 5219 } 5220 5221 // Remember who the current drag target is pre-dispatch 5222 final View prevDragView = mCurrentDragView; 5223 5224 // Now dispatch the drag/drop event 5225 boolean result = mView.dispatchDragEvent(event); 5226 5227 // If we changed apparent drag target, tell the OS about it 5228 if (prevDragView != mCurrentDragView) { 5229 try { 5230 if (prevDragView != null) { 5231 mWindowSession.dragRecipientExited(mWindow); 5232 } 5233 if (mCurrentDragView != null) { 5234 mWindowSession.dragRecipientEntered(mWindow); 5235 } 5236 } catch (RemoteException e) { 5237 Slog.e(TAG, "Unable to note drag target change"); 5238 } 5239 } 5240 5241 // Report the drop result when we're done 5242 if (what == DragEvent.ACTION_DROP) { 5243 mDragDescription = null; 5244 try { 5245 Log.i(TAG, "Reporting drop result: " + result); 5246 mWindowSession.reportDropResult(mWindow, result); 5247 } catch (RemoteException e) { 5248 Log.e(TAG, "Unable to report drop result"); 5249 } 5250 } 5251 5252 // When the drag operation ends, release any local state object 5253 // that may have been in use 5254 if (what == DragEvent.ACTION_DRAG_ENDED) { 5255 setLocalDragState(null); 5256 } 5257 } 5258 } 5259 event.recycle(); 5260 } 5261 5262 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 5263 if (mSeq != args.seq) { 5264 // The sequence has changed, so we need to update our value and make 5265 // sure to do a traversal afterward so the window manager is given our 5266 // most recent data. 5267 mSeq = args.seq; 5268 mAttachInfo.mForceReportNewAttributes = true; 5269 scheduleTraversals(); 5270 } 5271 if (mView == null) return; 5272 if (args.localChanges != 0) { 5273 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 5274 } 5275 5276 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 5277 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 5278 mAttachInfo.mGlobalSystemUiVisibility = visibility; 5279 mView.dispatchSystemUiVisibilityChanged(visibility); 5280 } 5281 } 5282 5283 public void handleDispatchDoneAnimating() { 5284 if (mWindowsAnimating) { 5285 mWindowsAnimating = false; 5286 if (!mDirty.isEmpty() || mIsAnimating || mFullRedrawNeeded) { 5287 scheduleTraversals(); 5288 } 5289 } 5290 } 5291 5292 public void handleDispatchWindowShown() { 5293 mAttachInfo.mTreeObserver.dispatchOnWindowShown(); 5294 } 5295 5296 public void getLastTouchPoint(Point outLocation) { 5297 outLocation.x = (int) mLastTouchPoint.x; 5298 outLocation.y = (int) mLastTouchPoint.y; 5299 } 5300 5301 public void setDragFocus(View newDragTarget) { 5302 if (mCurrentDragView != newDragTarget) { 5303 mCurrentDragView = newDragTarget; 5304 } 5305 } 5306 5307 private AudioManager getAudioManager() { 5308 if (mView == null) { 5309 throw new IllegalStateException("getAudioManager called when there is no mView"); 5310 } 5311 if (mAudioManager == null) { 5312 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 5313 } 5314 return mAudioManager; 5315 } 5316 5317 public AccessibilityInteractionController getAccessibilityInteractionController() { 5318 if (mView == null) { 5319 throw new IllegalStateException("getAccessibilityInteractionController" 5320 + " called when there is no mView"); 5321 } 5322 if (mAccessibilityInteractionController == null) { 5323 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 5324 } 5325 return mAccessibilityInteractionController; 5326 } 5327 5328 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 5329 boolean insetsPending) throws RemoteException { 5330 5331 float appScale = mAttachInfo.mApplicationScale; 5332 boolean restore = false; 5333 if (params != null && mTranslator != null) { 5334 restore = true; 5335 params.backup(); 5336 mTranslator.translateWindowLayout(params); 5337 } 5338 if (params != null) { 5339 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 5340 } 5341 mPendingConfiguration.seq = 0; 5342 //Log.d(TAG, ">>>>>> CALLING relayout"); 5343 if (params != null && mOrigWindowType != params.type) { 5344 // For compatibility with old apps, don't crash here. 5345 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 5346 Slog.w(TAG, "Window type can not be changed after " 5347 + "the window is added; ignoring change of " + mView); 5348 params.type = mOrigWindowType; 5349 } 5350 } 5351 int relayoutResult = mWindowSession.relayout( 5352 mWindow, mSeq, params, 5353 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 5354 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 5355 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 5356 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 5357 mPendingStableInsets, mPendingConfiguration, mSurface); 5358 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 5359 if (restore) { 5360 params.restore(); 5361 } 5362 5363 if (mTranslator != null) { 5364 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5365 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5366 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5367 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5368 mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets); 5369 } 5370 return relayoutResult; 5371 } 5372 5373 /** 5374 * {@inheritDoc} 5375 */ 5376 @Override 5377 public void playSoundEffect(int effectId) { 5378 checkThread(); 5379 5380 try { 5381 final AudioManager audioManager = getAudioManager(); 5382 5383 switch (effectId) { 5384 case SoundEffectConstants.CLICK: 5385 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5386 return; 5387 case SoundEffectConstants.NAVIGATION_DOWN: 5388 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5389 return; 5390 case SoundEffectConstants.NAVIGATION_LEFT: 5391 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5392 return; 5393 case SoundEffectConstants.NAVIGATION_RIGHT: 5394 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5395 return; 5396 case SoundEffectConstants.NAVIGATION_UP: 5397 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5398 return; 5399 default: 5400 throw new IllegalArgumentException("unknown effect id " + effectId + 5401 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5402 } 5403 } catch (IllegalStateException e) { 5404 // Exception thrown by getAudioManager() when mView is null 5405 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5406 e.printStackTrace(); 5407 } 5408 } 5409 5410 /** 5411 * {@inheritDoc} 5412 */ 5413 @Override 5414 public boolean performHapticFeedback(int effectId, boolean always) { 5415 try { 5416 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5417 } catch (RemoteException e) { 5418 return false; 5419 } 5420 } 5421 5422 /** 5423 * {@inheritDoc} 5424 */ 5425 @Override 5426 public View focusSearch(View focused, int direction) { 5427 checkThread(); 5428 if (!(mView instanceof ViewGroup)) { 5429 return null; 5430 } 5431 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5432 } 5433 5434 public void debug() { 5435 mView.debug(); 5436 } 5437 5438 public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 5439 String innerPrefix = prefix + " "; 5440 writer.print(prefix); writer.println("ViewRoot:"); 5441 writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded); 5442 writer.print(" mRemoved="); writer.println(mRemoved); 5443 writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled="); 5444 writer.println(mConsumeBatchedInputScheduled); 5445 writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled="); 5446 writer.println(mConsumeBatchedInputImmediatelyScheduled); 5447 writer.print(innerPrefix); writer.print("mPendingInputEventCount="); 5448 writer.println(mPendingInputEventCount); 5449 writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled="); 5450 writer.println(mProcessInputEventsScheduled); 5451 writer.print(innerPrefix); writer.print("mTraversalScheduled="); 5452 writer.print(mTraversalScheduled); 5453 if (mTraversalScheduled) { 5454 writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")"); 5455 } else { 5456 writer.println(); 5457 } 5458 mFirstInputStage.dump(innerPrefix, writer); 5459 5460 mChoreographer.dump(prefix, writer); 5461 5462 writer.print(prefix); writer.println("View Hierarchy:"); 5463 dumpViewHierarchy(innerPrefix, writer, mView); 5464 } 5465 5466 private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) { 5467 writer.print(prefix); 5468 if (view == null) { 5469 writer.println("null"); 5470 return; 5471 } 5472 writer.println(view.toString()); 5473 if (!(view instanceof ViewGroup)) { 5474 return; 5475 } 5476 ViewGroup grp = (ViewGroup)view; 5477 final int N = grp.getChildCount(); 5478 if (N <= 0) { 5479 return; 5480 } 5481 prefix = prefix + " "; 5482 for (int i=0; i<N; i++) { 5483 dumpViewHierarchy(prefix, writer, grp.getChildAt(i)); 5484 } 5485 } 5486 5487 public void dumpGfxInfo(int[] info) { 5488 info[0] = info[1] = 0; 5489 if (mView != null) { 5490 getGfxInfo(mView, info); 5491 } 5492 } 5493 5494 private static void getGfxInfo(View view, int[] info) { 5495 RenderNode renderNode = view.mRenderNode; 5496 info[0]++; 5497 if (renderNode != null) { 5498 info[1] += renderNode.getDebugSize(); 5499 } 5500 5501 if (view instanceof ViewGroup) { 5502 ViewGroup group = (ViewGroup) view; 5503 5504 int count = group.getChildCount(); 5505 for (int i = 0; i < count; i++) { 5506 getGfxInfo(group.getChildAt(i), info); 5507 } 5508 } 5509 } 5510 5511 /** 5512 * @param immediate True, do now if not in traversal. False, put on queue and do later. 5513 * @return True, request has been queued. False, request has been completed. 5514 */ 5515 boolean die(boolean immediate) { 5516 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5517 // done by dispatchDetachedFromWindow will cause havoc on return. 5518 if (immediate && !mIsInTraversal) { 5519 doDie(); 5520 return false; 5521 } 5522 5523 if (!mIsDrawing) { 5524 destroyHardwareRenderer(); 5525 } else { 5526 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 5527 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5528 } 5529 mHandler.sendEmptyMessage(MSG_DIE); 5530 return true; 5531 } 5532 5533 void doDie() { 5534 checkThread(); 5535 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 5536 synchronized (this) { 5537 if (mRemoved) { 5538 return; 5539 } 5540 mRemoved = true; 5541 if (mAdded) { 5542 dispatchDetachedFromWindow(); 5543 } 5544 5545 if (mAdded && !mFirst) { 5546 destroyHardwareRenderer(); 5547 5548 if (mView != null) { 5549 int viewVisibility = mView.getVisibility(); 5550 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5551 if (mWindowAttributesChanged || viewVisibilityChanged) { 5552 // If layout params have been changed, first give them 5553 // to the window manager to make sure it has the correct 5554 // animation info. 5555 try { 5556 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5557 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5558 mWindowSession.finishDrawing(mWindow); 5559 } 5560 } catch (RemoteException e) { 5561 } 5562 } 5563 5564 mSurface.release(); 5565 } 5566 } 5567 5568 mAdded = false; 5569 } 5570 WindowManagerGlobal.getInstance().doRemoveView(this); 5571 } 5572 5573 public void requestUpdateConfiguration(Configuration config) { 5574 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5575 mHandler.sendMessage(msg); 5576 } 5577 5578 public void loadSystemProperties() { 5579 mHandler.post(new Runnable() { 5580 @Override 5581 public void run() { 5582 // Profiling 5583 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5584 profileRendering(mAttachInfo.mHasWindowFocus); 5585 5586 // Hardware rendering 5587 if (mAttachInfo.mHardwareRenderer != null) { 5588 if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) { 5589 invalidate(); 5590 } 5591 } 5592 5593 // Layout debugging 5594 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5595 if (layout != mAttachInfo.mDebugLayout) { 5596 mAttachInfo.mDebugLayout = layout; 5597 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5598 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5599 } 5600 } 5601 } 5602 }); 5603 } 5604 5605 private void destroyHardwareRenderer() { 5606 HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 5607 5608 if (hardwareRenderer != null) { 5609 if (mView != null) { 5610 hardwareRenderer.destroyHardwareResources(mView); 5611 } 5612 hardwareRenderer.destroy(); 5613 hardwareRenderer.setRequested(false); 5614 5615 mAttachInfo.mHardwareRenderer = null; 5616 mAttachInfo.mHardwareAccelerated = false; 5617 } 5618 } 5619 5620 public void dispatchFinishInputConnection(InputConnection connection) { 5621 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5622 mHandler.sendMessage(msg); 5623 } 5624 5625 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5626 Rect visibleInsets, Rect stableInsets, boolean reportDraw, Configuration newConfig) { 5627 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5628 + " contentInsets=" + contentInsets.toShortString() 5629 + " visibleInsets=" + visibleInsets.toShortString() 5630 + " reportDraw=" + reportDraw); 5631 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5632 if (mTranslator != null) { 5633 mTranslator.translateRectInScreenToAppWindow(frame); 5634 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5635 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5636 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5637 } 5638 SomeArgs args = SomeArgs.obtain(); 5639 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5640 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5641 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5642 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5643 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5644 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5645 args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets; 5646 msg.obj = args; 5647 mHandler.sendMessage(msg); 5648 } 5649 5650 public void dispatchMoved(int newX, int newY) { 5651 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5652 if (mTranslator != null) { 5653 PointF point = new PointF(newX, newY); 5654 mTranslator.translatePointInScreenToAppWindow(point); 5655 newX = (int) (point.x + 0.5); 5656 newY = (int) (point.y + 0.5); 5657 } 5658 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5659 mHandler.sendMessage(msg); 5660 } 5661 5662 /** 5663 * Represents a pending input event that is waiting in a queue. 5664 * 5665 * Input events are processed in serial order by the timestamp specified by 5666 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5667 * one input event to the application at a time and waits for the application 5668 * to finish handling it before delivering the next one. 5669 * 5670 * However, because the application or IME can synthesize and inject multiple 5671 * key events at a time without going through the input dispatcher, we end up 5672 * needing a queue on the application's side. 5673 */ 5674 private static final class QueuedInputEvent { 5675 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5676 public static final int FLAG_DEFERRED = 1 << 1; 5677 public static final int FLAG_FINISHED = 1 << 2; 5678 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5679 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5680 public static final int FLAG_UNHANDLED = 1 << 5; 5681 5682 public QueuedInputEvent mNext; 5683 5684 public InputEvent mEvent; 5685 public InputEventReceiver mReceiver; 5686 public int mFlags; 5687 5688 public boolean shouldSkipIme() { 5689 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5690 return true; 5691 } 5692 return mEvent instanceof MotionEvent 5693 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5694 } 5695 5696 public boolean shouldSendToSynthesizer() { 5697 if ((mFlags & FLAG_UNHANDLED) != 0) { 5698 return true; 5699 } 5700 5701 return false; 5702 } 5703 5704 @Override 5705 public String toString() { 5706 StringBuilder sb = new StringBuilder("QueuedInputEvent{flags="); 5707 boolean hasPrevious = false; 5708 hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb); 5709 hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb); 5710 hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb); 5711 hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb); 5712 hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb); 5713 hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb); 5714 if (!hasPrevious) { 5715 sb.append("0"); 5716 } 5717 sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false")); 5718 sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false")); 5719 sb.append(", mEvent=" + mEvent + "}"); 5720 return sb.toString(); 5721 } 5722 5723 private boolean flagToString(String name, int flag, 5724 boolean hasPrevious, StringBuilder sb) { 5725 if ((mFlags & flag) != 0) { 5726 if (hasPrevious) { 5727 sb.append("|"); 5728 } 5729 sb.append(name); 5730 return true; 5731 } 5732 return hasPrevious; 5733 } 5734 } 5735 5736 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5737 InputEventReceiver receiver, int flags) { 5738 QueuedInputEvent q = mQueuedInputEventPool; 5739 if (q != null) { 5740 mQueuedInputEventPoolSize -= 1; 5741 mQueuedInputEventPool = q.mNext; 5742 q.mNext = null; 5743 } else { 5744 q = new QueuedInputEvent(); 5745 } 5746 5747 q.mEvent = event; 5748 q.mReceiver = receiver; 5749 q.mFlags = flags; 5750 return q; 5751 } 5752 5753 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5754 q.mEvent = null; 5755 q.mReceiver = null; 5756 5757 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5758 mQueuedInputEventPoolSize += 1; 5759 q.mNext = mQueuedInputEventPool; 5760 mQueuedInputEventPool = q; 5761 } 5762 } 5763 5764 void enqueueInputEvent(InputEvent event) { 5765 enqueueInputEvent(event, null, 0, false); 5766 } 5767 5768 void enqueueInputEvent(InputEvent event, 5769 InputEventReceiver receiver, int flags, boolean processImmediately) { 5770 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5771 5772 // Always enqueue the input event in order, regardless of its time stamp. 5773 // We do this because the application or the IME may inject key events 5774 // in response to touch events and we want to ensure that the injected keys 5775 // are processed in the order they were received and we cannot trust that 5776 // the time stamp of injected events are monotonic. 5777 QueuedInputEvent last = mPendingInputEventTail; 5778 if (last == null) { 5779 mPendingInputEventHead = q; 5780 mPendingInputEventTail = q; 5781 } else { 5782 last.mNext = q; 5783 mPendingInputEventTail = q; 5784 } 5785 mPendingInputEventCount += 1; 5786 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5787 mPendingInputEventCount); 5788 5789 if (processImmediately) { 5790 doProcessInputEvents(); 5791 } else { 5792 scheduleProcessInputEvents(); 5793 } 5794 } 5795 5796 private void scheduleProcessInputEvents() { 5797 if (!mProcessInputEventsScheduled) { 5798 mProcessInputEventsScheduled = true; 5799 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5800 msg.setAsynchronous(true); 5801 mHandler.sendMessage(msg); 5802 } 5803 } 5804 5805 void doProcessInputEvents() { 5806 // Deliver all pending input events in the queue. 5807 while (mPendingInputEventHead != null) { 5808 QueuedInputEvent q = mPendingInputEventHead; 5809 mPendingInputEventHead = q.mNext; 5810 if (mPendingInputEventHead == null) { 5811 mPendingInputEventTail = null; 5812 } 5813 q.mNext = null; 5814 5815 mPendingInputEventCount -= 1; 5816 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5817 mPendingInputEventCount); 5818 5819 long eventTime = q.mEvent.getEventTimeNano(); 5820 long oldestEventTime = eventTime; 5821 if (q.mEvent instanceof MotionEvent) { 5822 MotionEvent me = (MotionEvent)q.mEvent; 5823 if (me.getHistorySize() > 0) { 5824 oldestEventTime = me.getHistoricalEventTimeNano(0); 5825 } 5826 } 5827 mChoreographer.mFrameInfo.updateInputEventTime(eventTime, oldestEventTime); 5828 5829 deliverInputEvent(q); 5830 } 5831 5832 // We are done processing all input events that we can process right now 5833 // so we can clear the pending flag immediately. 5834 if (mProcessInputEventsScheduled) { 5835 mProcessInputEventsScheduled = false; 5836 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5837 } 5838 } 5839 5840 private void deliverInputEvent(QueuedInputEvent q) { 5841 Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5842 q.mEvent.getSequenceNumber()); 5843 if (mInputEventConsistencyVerifier != null) { 5844 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5845 } 5846 5847 InputStage stage; 5848 if (q.shouldSendToSynthesizer()) { 5849 stage = mSyntheticInputStage; 5850 } else { 5851 stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5852 } 5853 5854 if (stage != null) { 5855 stage.deliver(q); 5856 } else { 5857 finishInputEvent(q); 5858 } 5859 } 5860 5861 private void finishInputEvent(QueuedInputEvent q) { 5862 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5863 q.mEvent.getSequenceNumber()); 5864 5865 if (q.mReceiver != null) { 5866 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5867 q.mReceiver.finishInputEvent(q.mEvent, handled); 5868 } else { 5869 q.mEvent.recycleIfNeededAfterDispatch(); 5870 } 5871 5872 recycleQueuedInputEvent(q); 5873 } 5874 5875 static boolean isTerminalInputEvent(InputEvent event) { 5876 if (event instanceof KeyEvent) { 5877 final KeyEvent keyEvent = (KeyEvent)event; 5878 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5879 } else { 5880 final MotionEvent motionEvent = (MotionEvent)event; 5881 final int action = motionEvent.getAction(); 5882 return action == MotionEvent.ACTION_UP 5883 || action == MotionEvent.ACTION_CANCEL 5884 || action == MotionEvent.ACTION_HOVER_EXIT; 5885 } 5886 } 5887 5888 void scheduleConsumeBatchedInput() { 5889 if (!mConsumeBatchedInputScheduled) { 5890 mConsumeBatchedInputScheduled = true; 5891 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5892 mConsumedBatchedInputRunnable, null); 5893 } 5894 } 5895 5896 void unscheduleConsumeBatchedInput() { 5897 if (mConsumeBatchedInputScheduled) { 5898 mConsumeBatchedInputScheduled = false; 5899 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5900 mConsumedBatchedInputRunnable, null); 5901 } 5902 } 5903 5904 void scheduleConsumeBatchedInputImmediately() { 5905 if (!mConsumeBatchedInputImmediatelyScheduled) { 5906 unscheduleConsumeBatchedInput(); 5907 mConsumeBatchedInputImmediatelyScheduled = true; 5908 mHandler.post(mConsumeBatchedInputImmediatelyRunnable); 5909 } 5910 } 5911 5912 void doConsumeBatchedInput(long frameTimeNanos) { 5913 if (mConsumeBatchedInputScheduled) { 5914 mConsumeBatchedInputScheduled = false; 5915 if (mInputEventReceiver != null) { 5916 if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos) 5917 && frameTimeNanos != -1) { 5918 // If we consumed a batch here, we want to go ahead and schedule the 5919 // consumption of batched input events on the next frame. Otherwise, we would 5920 // wait until we have more input events pending and might get starved by other 5921 // things occurring in the process. If the frame time is -1, however, then 5922 // we're in a non-batching mode, so there's no need to schedule this. 5923 scheduleConsumeBatchedInput(); 5924 } 5925 } 5926 doProcessInputEvents(); 5927 } 5928 } 5929 5930 final class TraversalRunnable implements Runnable { 5931 @Override 5932 public void run() { 5933 doTraversal(); 5934 } 5935 } 5936 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 5937 5938 final class WindowInputEventReceiver extends InputEventReceiver { 5939 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 5940 super(inputChannel, looper); 5941 } 5942 5943 @Override 5944 public void onInputEvent(InputEvent event) { 5945 enqueueInputEvent(event, this, 0, true); 5946 } 5947 5948 @Override 5949 public void onBatchedInputEventPending() { 5950 if (mUnbufferedInputDispatch) { 5951 super.onBatchedInputEventPending(); 5952 } else { 5953 scheduleConsumeBatchedInput(); 5954 } 5955 } 5956 5957 @Override 5958 public void dispose() { 5959 unscheduleConsumeBatchedInput(); 5960 super.dispose(); 5961 } 5962 } 5963 WindowInputEventReceiver mInputEventReceiver; 5964 5965 final class ConsumeBatchedInputRunnable implements Runnable { 5966 @Override 5967 public void run() { 5968 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 5969 } 5970 } 5971 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 5972 new ConsumeBatchedInputRunnable(); 5973 boolean mConsumeBatchedInputScheduled; 5974 5975 final class ConsumeBatchedInputImmediatelyRunnable implements Runnable { 5976 @Override 5977 public void run() { 5978 doConsumeBatchedInput(-1); 5979 } 5980 } 5981 final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable = 5982 new ConsumeBatchedInputImmediatelyRunnable(); 5983 boolean mConsumeBatchedInputImmediatelyScheduled; 5984 5985 final class InvalidateOnAnimationRunnable implements Runnable { 5986 private boolean mPosted; 5987 private final ArrayList<View> mViews = new ArrayList<View>(); 5988 private final ArrayList<AttachInfo.InvalidateInfo> mViewRects = 5989 new ArrayList<AttachInfo.InvalidateInfo>(); 5990 private View[] mTempViews; 5991 private AttachInfo.InvalidateInfo[] mTempViewRects; 5992 5993 public void addView(View view) { 5994 synchronized (this) { 5995 mViews.add(view); 5996 postIfNeededLocked(); 5997 } 5998 } 5999 6000 public void addViewRect(AttachInfo.InvalidateInfo info) { 6001 synchronized (this) { 6002 mViewRects.add(info); 6003 postIfNeededLocked(); 6004 } 6005 } 6006 6007 public void removeView(View view) { 6008 synchronized (this) { 6009 mViews.remove(view); 6010 6011 for (int i = mViewRects.size(); i-- > 0; ) { 6012 AttachInfo.InvalidateInfo info = mViewRects.get(i); 6013 if (info.target == view) { 6014 mViewRects.remove(i); 6015 info.recycle(); 6016 } 6017 } 6018 6019 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 6020 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 6021 mPosted = false; 6022 } 6023 } 6024 } 6025 6026 @Override 6027 public void run() { 6028 final int viewCount; 6029 final int viewRectCount; 6030 synchronized (this) { 6031 mPosted = false; 6032 6033 viewCount = mViews.size(); 6034 if (viewCount != 0) { 6035 mTempViews = mViews.toArray(mTempViews != null 6036 ? mTempViews : new View[viewCount]); 6037 mViews.clear(); 6038 } 6039 6040 viewRectCount = mViewRects.size(); 6041 if (viewRectCount != 0) { 6042 mTempViewRects = mViewRects.toArray(mTempViewRects != null 6043 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 6044 mViewRects.clear(); 6045 } 6046 } 6047 6048 for (int i = 0; i < viewCount; i++) { 6049 mTempViews[i].invalidate(); 6050 mTempViews[i] = null; 6051 } 6052 6053 for (int i = 0; i < viewRectCount; i++) { 6054 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 6055 info.target.invalidate(info.left, info.top, info.right, info.bottom); 6056 info.recycle(); 6057 } 6058 } 6059 6060 private void postIfNeededLocked() { 6061 if (!mPosted) { 6062 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 6063 mPosted = true; 6064 } 6065 } 6066 } 6067 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 6068 new InvalidateOnAnimationRunnable(); 6069 6070 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 6071 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 6072 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6073 } 6074 6075 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 6076 long delayMilliseconds) { 6077 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 6078 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6079 } 6080 6081 public void dispatchInvalidateOnAnimation(View view) { 6082 mInvalidateOnAnimationRunnable.addView(view); 6083 } 6084 6085 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 6086 mInvalidateOnAnimationRunnable.addViewRect(info); 6087 } 6088 6089 public void cancelInvalidate(View view) { 6090 mHandler.removeMessages(MSG_INVALIDATE, view); 6091 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 6092 // them to the pool 6093 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 6094 mInvalidateOnAnimationRunnable.removeView(view); 6095 } 6096 6097 public void dispatchInputEvent(InputEvent event) { 6098 dispatchInputEvent(event, null); 6099 } 6100 6101 public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) { 6102 SomeArgs args = SomeArgs.obtain(); 6103 args.arg1 = event; 6104 args.arg2 = receiver; 6105 Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args); 6106 msg.setAsynchronous(true); 6107 mHandler.sendMessage(msg); 6108 } 6109 6110 public void synthesizeInputEvent(InputEvent event) { 6111 Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event); 6112 msg.setAsynchronous(true); 6113 mHandler.sendMessage(msg); 6114 } 6115 6116 public void dispatchKeyFromIme(KeyEvent event) { 6117 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 6118 msg.setAsynchronous(true); 6119 mHandler.sendMessage(msg); 6120 } 6121 6122 /** 6123 * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events. 6124 * 6125 * Note that it is the responsibility of the caller of this API to recycle the InputEvent it 6126 * passes in. 6127 */ 6128 public void dispatchUnhandledInputEvent(InputEvent event) { 6129 if (event instanceof MotionEvent) { 6130 event = MotionEvent.obtain((MotionEvent) event); 6131 } 6132 synthesizeInputEvent(event); 6133 } 6134 6135 public void dispatchAppVisibility(boolean visible) { 6136 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 6137 msg.arg1 = visible ? 1 : 0; 6138 mHandler.sendMessage(msg); 6139 } 6140 6141 public void dispatchGetNewSurface() { 6142 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 6143 mHandler.sendMessage(msg); 6144 } 6145 6146 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6147 Message msg = Message.obtain(); 6148 msg.what = MSG_WINDOW_FOCUS_CHANGED; 6149 msg.arg1 = hasFocus ? 1 : 0; 6150 msg.arg2 = inTouchMode ? 1 : 0; 6151 mHandler.sendMessage(msg); 6152 } 6153 6154 public void dispatchWindowShown() { 6155 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN); 6156 } 6157 6158 public void dispatchCloseSystemDialogs(String reason) { 6159 Message msg = Message.obtain(); 6160 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 6161 msg.obj = reason; 6162 mHandler.sendMessage(msg); 6163 } 6164 6165 public void dispatchDragEvent(DragEvent event) { 6166 final int what; 6167 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 6168 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 6169 mHandler.removeMessages(what); 6170 } else { 6171 what = MSG_DISPATCH_DRAG_EVENT; 6172 } 6173 Message msg = mHandler.obtainMessage(what, event); 6174 mHandler.sendMessage(msg); 6175 } 6176 6177 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6178 int localValue, int localChanges) { 6179 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 6180 args.seq = seq; 6181 args.globalVisibility = globalVisibility; 6182 args.localValue = localValue; 6183 args.localChanges = localChanges; 6184 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 6185 } 6186 6187 public void dispatchDoneAnimating() { 6188 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 6189 } 6190 6191 public void dispatchCheckFocus() { 6192 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 6193 // This will result in a call to checkFocus() below. 6194 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 6195 } 6196 } 6197 6198 /** 6199 * Post a callback to send a 6200 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6201 * This event is send at most once every 6202 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 6203 */ 6204 private void postSendWindowContentChangedCallback(View source, int changeType) { 6205 if (mSendWindowContentChangedAccessibilityEvent == null) { 6206 mSendWindowContentChangedAccessibilityEvent = 6207 new SendWindowContentChangedAccessibilityEvent(); 6208 } 6209 mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType); 6210 } 6211 6212 /** 6213 * Remove a posted callback to send a 6214 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6215 */ 6216 private void removeSendWindowContentChangedCallback() { 6217 if (mSendWindowContentChangedAccessibilityEvent != null) { 6218 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 6219 } 6220 } 6221 6222 @Override 6223 public boolean showContextMenuForChild(View originalView) { 6224 return false; 6225 } 6226 6227 @Override 6228 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 6229 return null; 6230 } 6231 6232 @Override 6233 public ActionMode startActionModeForChild( 6234 View originalView, ActionMode.Callback callback, int type) { 6235 return null; 6236 } 6237 6238 @Override 6239 public void createContextMenu(ContextMenu menu) { 6240 } 6241 6242 @Override 6243 public void childDrawableStateChanged(View child) { 6244 } 6245 6246 @Override 6247 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 6248 if (mView == null || mStopped || mPausedForTransition) { 6249 return false; 6250 } 6251 // Intercept accessibility focus events fired by virtual nodes to keep 6252 // track of accessibility focus position in such nodes. 6253 final int eventType = event.getEventType(); 6254 switch (eventType) { 6255 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 6256 final long sourceNodeId = event.getSourceNodeId(); 6257 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6258 sourceNodeId); 6259 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6260 if (source != null) { 6261 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6262 if (provider != null) { 6263 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 6264 sourceNodeId); 6265 final AccessibilityNodeInfo node; 6266 if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6267 node = provider.createAccessibilityNodeInfo( 6268 AccessibilityNodeProvider.HOST_VIEW_ID); 6269 } else { 6270 node = provider.createAccessibilityNodeInfo(virtualNodeId); 6271 } 6272 setAccessibilityFocus(source, node); 6273 } 6274 } 6275 } break; 6276 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 6277 final long sourceNodeId = event.getSourceNodeId(); 6278 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6279 sourceNodeId); 6280 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6281 if (source != null) { 6282 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6283 if (provider != null) { 6284 setAccessibilityFocus(null, null); 6285 } 6286 } 6287 } break; 6288 6289 6290 case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: { 6291 handleWindowContentChangedEvent(event); 6292 } break; 6293 } 6294 mAccessibilityManager.sendAccessibilityEvent(event); 6295 return true; 6296 } 6297 6298 /** 6299 * Updates the focused virtual view, when necessary, in response to a 6300 * content changed event. 6301 * <p> 6302 * This is necessary to get updated bounds after a position change. 6303 * 6304 * @param event an accessibility event of type 6305 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} 6306 */ 6307 private void handleWindowContentChangedEvent(AccessibilityEvent event) { 6308 // No virtual view focused, nothing to do here. 6309 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedVirtualView == null) { 6310 return; 6311 } 6312 6313 // If we have a node but no provider, abort. 6314 final AccessibilityNodeProvider provider = 6315 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 6316 if (provider == null) { 6317 // TODO: Should we clear the focused virtual view? 6318 return; 6319 } 6320 6321 // We only care about change types that may affect the bounds of the 6322 // focused virtual view. 6323 final int changes = event.getContentChangeTypes(); 6324 if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) == 0 6325 && changes != AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) { 6326 return; 6327 } 6328 6329 final long eventSourceNodeId = event.getSourceNodeId(); 6330 final int changedViewId = AccessibilityNodeInfo.getAccessibilityViewId(eventSourceNodeId); 6331 6332 // Search up the tree for subtree containment. 6333 boolean hostInSubtree = false; 6334 View root = mAccessibilityFocusedHost; 6335 while (root != null && !hostInSubtree) { 6336 if (changedViewId == root.getAccessibilityViewId()) { 6337 hostInSubtree = true; 6338 } else { 6339 final ViewParent parent = root.getParent(); 6340 if (parent instanceof View) { 6341 root = (View) parent; 6342 } else { 6343 root = null; 6344 } 6345 } 6346 } 6347 6348 // We care only about changes in subtrees containing the host view. 6349 if (!hostInSubtree) { 6350 return; 6351 } 6352 6353 final long focusedSourceNodeId = mAccessibilityFocusedVirtualView.getSourceNodeId(); 6354 int focusedChildId = AccessibilityNodeInfo.getVirtualDescendantId(focusedSourceNodeId); 6355 if (focusedChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6356 // TODO: Should we clear the focused virtual view? 6357 focusedChildId = AccessibilityNodeProvider.HOST_VIEW_ID; 6358 } 6359 6360 // Refresh the node for the focused virtual view. 6361 mAccessibilityFocusedVirtualView = provider.createAccessibilityNodeInfo(focusedChildId); 6362 } 6363 6364 @Override 6365 public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) { 6366 postSendWindowContentChangedCallback(source, changeType); 6367 } 6368 6369 @Override 6370 public boolean canResolveLayoutDirection() { 6371 return true; 6372 } 6373 6374 @Override 6375 public boolean isLayoutDirectionResolved() { 6376 return true; 6377 } 6378 6379 @Override 6380 public int getLayoutDirection() { 6381 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 6382 } 6383 6384 @Override 6385 public boolean canResolveTextDirection() { 6386 return true; 6387 } 6388 6389 @Override 6390 public boolean isTextDirectionResolved() { 6391 return true; 6392 } 6393 6394 @Override 6395 public int getTextDirection() { 6396 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 6397 } 6398 6399 @Override 6400 public boolean canResolveTextAlignment() { 6401 return true; 6402 } 6403 6404 @Override 6405 public boolean isTextAlignmentResolved() { 6406 return true; 6407 } 6408 6409 @Override 6410 public int getTextAlignment() { 6411 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 6412 } 6413 6414 private View getCommonPredecessor(View first, View second) { 6415 if (mTempHashSet == null) { 6416 mTempHashSet = new HashSet<View>(); 6417 } 6418 HashSet<View> seen = mTempHashSet; 6419 seen.clear(); 6420 View firstCurrent = first; 6421 while (firstCurrent != null) { 6422 seen.add(firstCurrent); 6423 ViewParent firstCurrentParent = firstCurrent.mParent; 6424 if (firstCurrentParent instanceof View) { 6425 firstCurrent = (View) firstCurrentParent; 6426 } else { 6427 firstCurrent = null; 6428 } 6429 } 6430 View secondCurrent = second; 6431 while (secondCurrent != null) { 6432 if (seen.contains(secondCurrent)) { 6433 seen.clear(); 6434 return secondCurrent; 6435 } 6436 ViewParent secondCurrentParent = secondCurrent.mParent; 6437 if (secondCurrentParent instanceof View) { 6438 secondCurrent = (View) secondCurrentParent; 6439 } else { 6440 secondCurrent = null; 6441 } 6442 } 6443 seen.clear(); 6444 return null; 6445 } 6446 6447 void checkThread() { 6448 if (mThread != Thread.currentThread()) { 6449 throw new CalledFromWrongThreadException( 6450 "Only the original thread that created a view hierarchy can touch its views."); 6451 } 6452 } 6453 6454 @Override 6455 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 6456 // ViewAncestor never intercepts touch event, so this can be a no-op 6457 } 6458 6459 @Override 6460 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 6461 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 6462 if (rectangle != null) { 6463 mTempRect.set(rectangle); 6464 mTempRect.offset(0, -mCurScrollY); 6465 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 6466 try { 6467 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect); 6468 } catch (RemoteException re) { 6469 /* ignore */ 6470 } 6471 } 6472 return scrolled; 6473 } 6474 6475 @Override 6476 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 6477 // Do nothing. 6478 } 6479 6480 @Override 6481 public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 6482 return false; 6483 } 6484 6485 @Override 6486 public void onStopNestedScroll(View target) { 6487 } 6488 6489 @Override 6490 public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) { 6491 } 6492 6493 @Override 6494 public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 6495 int dxUnconsumed, int dyUnconsumed) { 6496 } 6497 6498 @Override 6499 public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) { 6500 } 6501 6502 @Override 6503 public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 6504 return false; 6505 } 6506 6507 @Override 6508 public boolean onNestedPreFling(View target, float velocityX, float velocityY) { 6509 return false; 6510 } 6511 6512 @Override 6513 public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) { 6514 return false; 6515 } 6516 6517 void changeCanvasOpacity(boolean opaque) { 6518 Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque); 6519 if (mAttachInfo.mHardwareRenderer != null) { 6520 mAttachInfo.mHardwareRenderer.setOpaque(opaque); 6521 } 6522 } 6523 6524 class TakenSurfaceHolder extends BaseSurfaceHolder { 6525 @Override 6526 public boolean onAllowLockCanvas() { 6527 return mDrawingAllowed; 6528 } 6529 6530 @Override 6531 public void onRelayoutContainer() { 6532 // Not currently interesting -- from changing between fixed and layout size. 6533 } 6534 6535 @Override 6536 public void setFormat(int format) { 6537 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 6538 } 6539 6540 @Override 6541 public void setType(int type) { 6542 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 6543 } 6544 6545 @Override 6546 public void onUpdateSurface() { 6547 // We take care of format and type changes on our own. 6548 throw new IllegalStateException("Shouldn't be here"); 6549 } 6550 6551 @Override 6552 public boolean isCreating() { 6553 return mIsCreating; 6554 } 6555 6556 @Override 6557 public void setFixedSize(int width, int height) { 6558 throw new UnsupportedOperationException( 6559 "Currently only support sizing from layout"); 6560 } 6561 6562 @Override 6563 public void setKeepScreenOn(boolean screenOn) { 6564 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 6565 } 6566 } 6567 6568 static class W extends IWindow.Stub { 6569 private final WeakReference<ViewRootImpl> mViewAncestor; 6570 private final IWindowSession mWindowSession; 6571 6572 W(ViewRootImpl viewAncestor) { 6573 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 6574 mWindowSession = viewAncestor.mWindowSession; 6575 } 6576 6577 @Override 6578 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 6579 Rect visibleInsets, Rect stableInsets, boolean reportDraw, 6580 Configuration newConfig) { 6581 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6582 if (viewAncestor != null) { 6583 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 6584 visibleInsets, stableInsets, reportDraw, newConfig); 6585 } 6586 } 6587 6588 @Override 6589 public void moved(int newX, int newY) { 6590 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6591 if (viewAncestor != null) { 6592 viewAncestor.dispatchMoved(newX, newY); 6593 } 6594 } 6595 6596 @Override 6597 public void dispatchAppVisibility(boolean visible) { 6598 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6599 if (viewAncestor != null) { 6600 viewAncestor.dispatchAppVisibility(visible); 6601 } 6602 } 6603 6604 @Override 6605 public void dispatchGetNewSurface() { 6606 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6607 if (viewAncestor != null) { 6608 viewAncestor.dispatchGetNewSurface(); 6609 } 6610 } 6611 6612 @Override 6613 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6614 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6615 if (viewAncestor != null) { 6616 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 6617 } 6618 } 6619 6620 private static int checkCallingPermission(String permission) { 6621 try { 6622 return ActivityManagerNative.getDefault().checkPermission( 6623 permission, Binder.getCallingPid(), Binder.getCallingUid()); 6624 } catch (RemoteException e) { 6625 return PackageManager.PERMISSION_DENIED; 6626 } 6627 } 6628 6629 @Override 6630 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 6631 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6632 if (viewAncestor != null) { 6633 final View view = viewAncestor.mView; 6634 if (view != null) { 6635 if (checkCallingPermission(Manifest.permission.DUMP) != 6636 PackageManager.PERMISSION_GRANTED) { 6637 throw new SecurityException("Insufficient permissions to invoke" 6638 + " executeCommand() from pid=" + Binder.getCallingPid() 6639 + ", uid=" + Binder.getCallingUid()); 6640 } 6641 6642 OutputStream clientStream = null; 6643 try { 6644 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 6645 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 6646 } catch (IOException e) { 6647 e.printStackTrace(); 6648 } finally { 6649 if (clientStream != null) { 6650 try { 6651 clientStream.close(); 6652 } catch (IOException e) { 6653 e.printStackTrace(); 6654 } 6655 } 6656 } 6657 } 6658 } 6659 } 6660 6661 @Override 6662 public void closeSystemDialogs(String reason) { 6663 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6664 if (viewAncestor != null) { 6665 viewAncestor.dispatchCloseSystemDialogs(reason); 6666 } 6667 } 6668 6669 @Override 6670 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 6671 boolean sync) { 6672 if (sync) { 6673 try { 6674 mWindowSession.wallpaperOffsetsComplete(asBinder()); 6675 } catch (RemoteException e) { 6676 } 6677 } 6678 } 6679 6680 @Override 6681 public void dispatchWallpaperCommand(String action, int x, int y, 6682 int z, Bundle extras, boolean sync) { 6683 if (sync) { 6684 try { 6685 mWindowSession.wallpaperCommandComplete(asBinder(), null); 6686 } catch (RemoteException e) { 6687 } 6688 } 6689 } 6690 6691 /* Drag/drop */ 6692 @Override 6693 public void dispatchDragEvent(DragEvent event) { 6694 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6695 if (viewAncestor != null) { 6696 viewAncestor.dispatchDragEvent(event); 6697 } 6698 } 6699 6700 @Override 6701 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6702 int localValue, int localChanges) { 6703 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6704 if (viewAncestor != null) { 6705 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 6706 localValue, localChanges); 6707 } 6708 } 6709 6710 @Override 6711 public void doneAnimating() { 6712 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6713 if (viewAncestor != null) { 6714 viewAncestor.dispatchDoneAnimating(); 6715 } 6716 } 6717 6718 @Override 6719 public void dispatchWindowShown() { 6720 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6721 if (viewAncestor != null) { 6722 viewAncestor.dispatchWindowShown(); 6723 } 6724 } 6725 } 6726 6727 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 6728 public CalledFromWrongThreadException(String msg) { 6729 super(msg); 6730 } 6731 } 6732 6733 static RunQueue getRunQueue() { 6734 RunQueue rq = sRunQueues.get(); 6735 if (rq != null) { 6736 return rq; 6737 } 6738 rq = new RunQueue(); 6739 sRunQueues.set(rq); 6740 return rq; 6741 } 6742 6743 /** 6744 * The run queue is used to enqueue pending work from Views when no Handler is 6745 * attached. The work is executed during the next call to performTraversals on 6746 * the thread. 6747 * @hide 6748 */ 6749 static final class RunQueue { 6750 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 6751 6752 void post(Runnable action) { 6753 postDelayed(action, 0); 6754 } 6755 6756 void postDelayed(Runnable action, long delayMillis) { 6757 HandlerAction handlerAction = new HandlerAction(); 6758 handlerAction.action = action; 6759 handlerAction.delay = delayMillis; 6760 6761 synchronized (mActions) { 6762 mActions.add(handlerAction); 6763 } 6764 } 6765 6766 void removeCallbacks(Runnable action) { 6767 final HandlerAction handlerAction = new HandlerAction(); 6768 handlerAction.action = action; 6769 6770 synchronized (mActions) { 6771 final ArrayList<HandlerAction> actions = mActions; 6772 6773 while (actions.remove(handlerAction)) { 6774 // Keep going 6775 } 6776 } 6777 } 6778 6779 void executeActions(Handler handler) { 6780 synchronized (mActions) { 6781 final ArrayList<HandlerAction> actions = mActions; 6782 final int count = actions.size(); 6783 6784 for (int i = 0; i < count; i++) { 6785 final HandlerAction handlerAction = actions.get(i); 6786 handler.postDelayed(handlerAction.action, handlerAction.delay); 6787 } 6788 6789 actions.clear(); 6790 } 6791 } 6792 6793 private static class HandlerAction { 6794 Runnable action; 6795 long delay; 6796 6797 @Override 6798 public boolean equals(Object o) { 6799 if (this == o) return true; 6800 if (o == null || getClass() != o.getClass()) return false; 6801 6802 HandlerAction that = (HandlerAction) o; 6803 return !(action != null ? !action.equals(that.action) : that.action != null); 6804 6805 } 6806 6807 @Override 6808 public int hashCode() { 6809 int result = action != null ? action.hashCode() : 0; 6810 result = 31 * result + (int) (delay ^ (delay >>> 32)); 6811 return result; 6812 } 6813 } 6814 } 6815 6816 /** 6817 * Class for managing the accessibility interaction connection 6818 * based on the global accessibility state. 6819 */ 6820 final class AccessibilityInteractionConnectionManager 6821 implements AccessibilityStateChangeListener { 6822 @Override 6823 public void onAccessibilityStateChanged(boolean enabled) { 6824 if (enabled) { 6825 ensureConnection(); 6826 if (mAttachInfo.mHasWindowFocus) { 6827 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6828 View focusedView = mView.findFocus(); 6829 if (focusedView != null && focusedView != mView) { 6830 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6831 } 6832 } 6833 } else { 6834 ensureNoConnection(); 6835 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6836 } 6837 } 6838 6839 public void ensureConnection() { 6840 final boolean registered = 6841 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6842 if (!registered) { 6843 mAttachInfo.mAccessibilityWindowId = 6844 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6845 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6846 } 6847 } 6848 6849 public void ensureNoConnection() { 6850 final boolean registered = 6851 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6852 if (registered) { 6853 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6854 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6855 } 6856 } 6857 } 6858 6859 final class HighContrastTextManager implements HighTextContrastChangeListener { 6860 HighContrastTextManager() { 6861 mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled(); 6862 } 6863 @Override 6864 public void onHighTextContrastStateChanged(boolean enabled) { 6865 mAttachInfo.mHighContrastText = enabled; 6866 6867 // Destroy Displaylists so they can be recreated with high contrast recordings 6868 destroyHardwareResources(); 6869 6870 // Schedule redraw, which will rerecord + redraw all text 6871 invalidate(); 6872 } 6873 } 6874 6875 /** 6876 * This class is an interface this ViewAncestor provides to the 6877 * AccessibilityManagerService to the latter can interact with 6878 * the view hierarchy in this ViewAncestor. 6879 */ 6880 static final class AccessibilityInteractionConnection 6881 extends IAccessibilityInteractionConnection.Stub { 6882 private final WeakReference<ViewRootImpl> mViewRootImpl; 6883 6884 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6885 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6886 } 6887 6888 @Override 6889 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 6890 Region interactiveRegion, int interactionId, 6891 IAccessibilityInteractionConnectionCallback callback, int flags, 6892 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6893 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6894 if (viewRootImpl != null && viewRootImpl.mView != null) { 6895 viewRootImpl.getAccessibilityInteractionController() 6896 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 6897 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6898 interrogatingTid, spec); 6899 } else { 6900 // We cannot make the call and notify the caller so it does not wait. 6901 try { 6902 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6903 } catch (RemoteException re) { 6904 /* best effort - ignore */ 6905 } 6906 } 6907 } 6908 6909 @Override 6910 public void performAccessibilityAction(long accessibilityNodeId, int action, 6911 Bundle arguments, int interactionId, 6912 IAccessibilityInteractionConnectionCallback callback, int flags, 6913 int interrogatingPid, long interrogatingTid) { 6914 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6915 if (viewRootImpl != null && viewRootImpl.mView != null) { 6916 viewRootImpl.getAccessibilityInteractionController() 6917 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 6918 interactionId, callback, flags, interrogatingPid, interrogatingTid); 6919 } else { 6920 // We cannot make the call and notify the caller so it does not wait. 6921 try { 6922 callback.setPerformAccessibilityActionResult(false, interactionId); 6923 } catch (RemoteException re) { 6924 /* best effort - ignore */ 6925 } 6926 } 6927 } 6928 6929 @Override 6930 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 6931 String viewId, Region interactiveRegion, int interactionId, 6932 IAccessibilityInteractionConnectionCallback callback, int flags, 6933 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6934 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6935 if (viewRootImpl != null && viewRootImpl.mView != null) { 6936 viewRootImpl.getAccessibilityInteractionController() 6937 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 6938 viewId, interactiveRegion, interactionId, callback, flags, 6939 interrogatingPid, interrogatingTid, spec); 6940 } else { 6941 // We cannot make the call and notify the caller so it does not wait. 6942 try { 6943 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6944 } catch (RemoteException re) { 6945 /* best effort - ignore */ 6946 } 6947 } 6948 } 6949 6950 @Override 6951 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 6952 Region interactiveRegion, int interactionId, 6953 IAccessibilityInteractionConnectionCallback callback, int flags, 6954 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6955 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6956 if (viewRootImpl != null && viewRootImpl.mView != null) { 6957 viewRootImpl.getAccessibilityInteractionController() 6958 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 6959 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6960 interrogatingTid, spec); 6961 } else { 6962 // We cannot make the call and notify the caller so it does not wait. 6963 try { 6964 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6965 } catch (RemoteException re) { 6966 /* best effort - ignore */ 6967 } 6968 } 6969 } 6970 6971 @Override 6972 public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion, 6973 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6974 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6975 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6976 if (viewRootImpl != null && viewRootImpl.mView != null) { 6977 viewRootImpl.getAccessibilityInteractionController() 6978 .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion, 6979 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6980 spec); 6981 } else { 6982 // We cannot make the call and notify the caller so it does not wait. 6983 try { 6984 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6985 } catch (RemoteException re) { 6986 /* best effort - ignore */ 6987 } 6988 } 6989 } 6990 6991 @Override 6992 public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion, 6993 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6994 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6995 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6996 if (viewRootImpl != null && viewRootImpl.mView != null) { 6997 viewRootImpl.getAccessibilityInteractionController() 6998 .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion, 6999 interactionId, callback, flags, interrogatingPid, interrogatingTid, 7000 spec); 7001 } else { 7002 // We cannot make the call and notify the caller so it does not wait. 7003 try { 7004 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 7005 } catch (RemoteException re) { 7006 /* best effort - ignore */ 7007 } 7008 } 7009 } 7010 } 7011 7012 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 7013 private int mChangeTypes = 0; 7014 7015 public View mSource; 7016 public long mLastEventTimeMillis; 7017 7018 @Override 7019 public void run() { 7020 // The accessibility may be turned off while we were waiting so check again. 7021 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 7022 mLastEventTimeMillis = SystemClock.uptimeMillis(); 7023 AccessibilityEvent event = AccessibilityEvent.obtain(); 7024 event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 7025 event.setContentChangeTypes(mChangeTypes); 7026 mSource.sendAccessibilityEventUnchecked(event); 7027 } else { 7028 mLastEventTimeMillis = 0; 7029 } 7030 // In any case reset to initial state. 7031 mSource.resetSubtreeAccessibilityStateChanged(); 7032 mSource = null; 7033 mChangeTypes = 0; 7034 } 7035 7036 public void runOrPost(View source, int changeType) { 7037 if (mSource != null) { 7038 // If there is no common predecessor, then mSource points to 7039 // a removed view, hence in this case always prefer the source. 7040 View predecessor = getCommonPredecessor(mSource, source); 7041 mSource = (predecessor != null) ? predecessor : source; 7042 mChangeTypes |= changeType; 7043 return; 7044 } 7045 mSource = source; 7046 mChangeTypes = changeType; 7047 final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis; 7048 final long minEventIntevalMillis = 7049 ViewConfiguration.getSendRecurringAccessibilityEventsInterval(); 7050 if (timeSinceLastMillis >= minEventIntevalMillis) { 7051 mSource.removeCallbacks(this); 7052 run(); 7053 } else { 7054 mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis); 7055 } 7056 } 7057 } 7058} 7059