ViewRootImpl.java revision c6ee744a90a4a84df93b6631ca7df8736ef320e1
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.Context; 25import android.content.pm.PackageManager; 26import android.content.res.CompatibilityInfo; 27import android.content.res.Configuration; 28import android.content.res.Resources; 29import android.graphics.Canvas; 30import android.graphics.Matrix; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.graphics.drawable.Drawable; 39import android.hardware.display.DisplayManager; 40import android.hardware.display.DisplayManager.DisplayListener; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Build; 44import android.os.Bundle; 45import android.os.Debug; 46import android.os.Handler; 47import android.os.Looper; 48import android.os.Message; 49import android.os.ParcelFileDescriptor; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TimeUtils; 60import android.util.TypedValue; 61import android.view.Surface.OutOfResourcesException; 62import android.view.View.AttachInfo; 63import android.view.View.MeasureSpec; 64import android.view.accessibility.AccessibilityEvent; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener; 68import android.view.accessibility.AccessibilityNodeInfo; 69import android.view.accessibility.AccessibilityNodeProvider; 70import android.view.accessibility.IAccessibilityInteractionConnection; 71import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 72import android.view.animation.AccelerateDecelerateInterpolator; 73import android.view.animation.Interpolator; 74import android.view.inputmethod.InputConnection; 75import android.view.inputmethod.InputMethodManager; 76import android.widget.Scroller; 77 78import com.android.internal.R; 79import com.android.internal.os.SomeArgs; 80import com.android.internal.view.BaseSurfaceHolder; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.FileDescriptor; 84import java.io.IOException; 85import java.io.OutputStream; 86import java.io.PrintWriter; 87import java.lang.ref.WeakReference; 88import java.util.ArrayList; 89import java.util.HashSet; 90 91/** 92 * The top of a view hierarchy, implementing the needed protocol between View 93 * and the WindowManager. This is for the most part an internal implementation 94 * detail of {@link WindowManagerGlobal}. 95 * 96 * {@hide} 97 */ 98@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 99public final class ViewRootImpl implements ViewParent, 100 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 101 private static final String TAG = "ViewRootImpl"; 102 private static final boolean DBG = false; 103 private static final boolean LOCAL_LOGV = false; 104 /** @noinspection PointlessBooleanExpression*/ 105 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 106 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 107 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 108 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 109 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 110 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 111 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 112 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 113 private static final boolean DEBUG_FPS = false; 114 private static final boolean DEBUG_INPUT_STAGES = false || LOCAL_LOGV; 115 116 /** 117 * Set this system property to true to force the view hierarchy to render 118 * at 60 Hz. This can be used to measure the potential framerate. 119 */ 120 private static final String PROPERTY_PROFILE_RENDERING = "viewroot.profile_rendering"; 121 private static final String PROPERTY_MEDIA_DISABLED = "config.disable_media"; 122 123 // property used by emulator to determine display shape 124 public static final String PROPERTY_EMULATOR_CIRCULAR = "ro.emulator.circular"; 125 126 /** 127 * Maximum time we allow the user to roll the trackball enough to generate 128 * a key event, before resetting the counters. 129 */ 130 static final int MAX_TRACKBALL_DELAY = 250; 131 132 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 133 134 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 135 static boolean sFirstDrawComplete = false; 136 137 static final ArrayList<ComponentCallbacks> sConfigCallbacks 138 = new ArrayList<ComponentCallbacks>(); 139 140 final Context mContext; 141 final IWindowSession mWindowSession; 142 final Display mDisplay; 143 final DisplayManager mDisplayManager; 144 final String mBasePackageName; 145 146 final int[] mTmpLocation = new int[2]; 147 148 final TypedValue mTmpValue = new TypedValue(); 149 150 final Thread mThread; 151 152 final WindowLeaked mLocation; 153 154 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 155 156 final W mWindow; 157 158 final int mTargetSdkVersion; 159 160 int mSeq; 161 162 View mView; 163 164 View mAccessibilityFocusedHost; 165 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 166 167 int mViewVisibility; 168 boolean mAppVisible = true; 169 int mOrigWindowType = -1; 170 171 // Set to true if the owner of this window is in the stopped state, 172 // so the window should no longer be active. 173 boolean mStopped = false; 174 175 boolean mLastInCompatMode = false; 176 177 SurfaceHolder.Callback2 mSurfaceHolderCallback; 178 BaseSurfaceHolder mSurfaceHolder; 179 boolean mIsCreating; 180 boolean mDrawingAllowed; 181 182 final Region mTransparentRegion; 183 final Region mPreviousTransparentRegion; 184 185 int mWidth; 186 int mHeight; 187 Rect mDirty; 188 boolean mIsAnimating; 189 190 CompatibilityInfo.Translator mTranslator; 191 192 final View.AttachInfo mAttachInfo; 193 InputChannel mInputChannel; 194 InputQueue.Callback mInputQueueCallback; 195 InputQueue mInputQueue; 196 FallbackEventHandler mFallbackEventHandler; 197 Choreographer mChoreographer; 198 199 final Rect mTempRect; // used in the transaction to not thrash the heap. 200 final Rect mVisRect; // used to retrieve visible rect of focused view. 201 202 boolean mTraversalScheduled; 203 int mTraversalBarrier; 204 boolean mWillDrawSoon; 205 /** Set to true while in performTraversals for detecting when die(true) is called from internal 206 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 207 boolean mIsInTraversal; 208 boolean mApplyInsetsRequested; 209 boolean mLayoutRequested; 210 boolean mFirst; 211 boolean mReportNextDraw; 212 boolean mFullRedrawNeeded; 213 boolean mNewSurfaceNeeded; 214 boolean mHasHadWindowFocus; 215 boolean mLastWasImTarget; 216 boolean mWindowsAnimating; 217 boolean mDrawDuringWindowsAnimating; 218 boolean mIsDrawing; 219 int mLastSystemUiVisibility; 220 int mClientWindowLayoutFlags; 221 boolean mLastOverscanRequested; 222 223 // Pool of queued input events. 224 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 225 private QueuedInputEvent mQueuedInputEventPool; 226 private int mQueuedInputEventPoolSize; 227 228 /* Input event queue. 229 * Pending input events are input events waiting to be delivered to the input stages 230 * and handled by the application. 231 */ 232 QueuedInputEvent mPendingInputEventHead; 233 QueuedInputEvent mPendingInputEventTail; 234 int mPendingInputEventCount; 235 boolean mProcessInputEventsScheduled; 236 boolean mUnbufferedInputDispatch; 237 String mPendingInputEventQueueLengthCounterName = "pq"; 238 239 InputStage mFirstInputStage; 240 InputStage mFirstPostImeInputStage; 241 InputStage mSyntheticInputStage; 242 243 boolean mWindowAttributesChanged = false; 244 int mWindowAttributesChangesFlag = 0; 245 246 // These can be accessed by any thread, must be protected with a lock. 247 // Surface can never be reassigned or cleared (use Surface.clear()). 248 final Surface mSurface = new Surface(); 249 250 boolean mAdded; 251 boolean mAddedTouchMode; 252 253 final DisplayAdjustments mDisplayAdjustments; 254 255 // These are accessed by multiple threads. 256 final Rect mWinFrame; // frame given by window manager. 257 258 final Rect mPendingOverscanInsets = new Rect(); 259 final Rect mPendingVisibleInsets = new Rect(); 260 final Rect mPendingStableInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mDispatchContentInsets = new Rect(); 266 final Rect mDispatchStableInsets = new Rect(); 267 268 private WindowInsets mLastWindowInsets; 269 270 final Configuration mLastConfiguration = new Configuration(); 271 final Configuration mPendingConfiguration = new Configuration(); 272 273 boolean mScrollMayChange; 274 int mSoftInputMode; 275 WeakReference<View> mLastScrolledFocus; 276 int mScrollY; 277 int mCurScrollY; 278 Scroller mScroller; 279 HardwareLayer mResizeBuffer; 280 long mResizeBufferStartTime; 281 int mResizeBufferDuration; 282 // Used to block the creation of the ResizeBuffer due to invalidations in 283 // the previous DisplayList tree that must prevent re-execution. 284 // Currently this means a functor was detached. 285 boolean mBlockResizeBuffer; 286 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 287 private ArrayList<LayoutTransition> mPendingTransitions; 288 289 final ViewConfiguration mViewConfiguration; 290 291 /* Drag/drop */ 292 ClipDescription mDragDescription; 293 View mCurrentDragView; 294 volatile Object mLocalDragState; 295 final PointF mDragPoint = new PointF(); 296 final PointF mLastTouchPoint = new PointF(); 297 298 private boolean mProfileRendering; 299 private Choreographer.FrameCallback mRenderProfiler; 300 private boolean mRenderProfilingEnabled; 301 302 private boolean mMediaDisabled; 303 304 // Variables to track frames per second, enabled via DEBUG_FPS flag 305 private long mFpsStartTime = -1; 306 private long mFpsPrevTime = -1; 307 private int mFpsNumFrames; 308 309 /** 310 * see {@link #playSoundEffect(int)} 311 */ 312 AudioManager mAudioManager; 313 314 final AccessibilityManager mAccessibilityManager; 315 316 AccessibilityInteractionController mAccessibilityInteractionController; 317 318 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 319 HighContrastTextManager mHighContrastTextManager; 320 321 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 322 323 HashSet<View> mTempHashSet; 324 325 private final int mDensity; 326 private final int mNoncompatDensity; 327 328 private boolean mInLayout = false; 329 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 330 boolean mHandlingLayoutInLayoutRequest = false; 331 332 private int mViewLayoutDirectionInitial; 333 334 /** Set to true once doDie() has been called. */ 335 private boolean mRemoved; 336 337 private boolean mIsEmulator; 338 private boolean mIsCircularEmulator; 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 = context.getResources().getBoolean( 396 com.android.internal.R.bool.config_windowIsRound); 397 } 398 399 public static void addFirstDrawHandler(Runnable callback) { 400 synchronized (sFirstDrawHandlers) { 401 if (!sFirstDrawComplete) { 402 sFirstDrawHandlers.add(callback); 403 } 404 } 405 } 406 407 public static void addConfigCallback(ComponentCallbacks callback) { 408 synchronized (sConfigCallbacks) { 409 sConfigCallbacks.add(callback); 410 } 411 } 412 413 // FIXME for perf testing only 414 private boolean mProfile = false; 415 416 /** 417 * Call this to profile the next traversal call. 418 * FIXME for perf testing only. Remove eventually 419 */ 420 public void profile() { 421 mProfile = true; 422 } 423 424 /** 425 * Indicates whether we are in touch mode. Calling this method triggers an IPC 426 * call and should be avoided whenever possible. 427 * 428 * @return True, if the device is in touch mode, false otherwise. 429 * 430 * @hide 431 */ 432 static boolean isInTouchMode() { 433 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 434 if (windowSession != null) { 435 try { 436 return windowSession.getInTouchMode(); 437 } catch (RemoteException e) { 438 } 439 } 440 return false; 441 } 442 443 /** 444 * We have one child 445 */ 446 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 447 synchronized (this) { 448 if (mView == null) { 449 mView = view; 450 451 mAttachInfo.mDisplayState = mDisplay.getState(); 452 mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); 453 454 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 455 mFallbackEventHandler.setView(view); 456 mWindowAttributes.copyFrom(attrs); 457 if (mWindowAttributes.packageName == null) { 458 mWindowAttributes.packageName = mBasePackageName; 459 } 460 attrs = mWindowAttributes; 461 // Keep track of the actual window flags supplied by the client. 462 mClientWindowLayoutFlags = attrs.flags; 463 464 setAccessibilityFocus(null, null); 465 466 if (view instanceof RootViewSurfaceTaker) { 467 mSurfaceHolderCallback = 468 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 469 if (mSurfaceHolderCallback != null) { 470 mSurfaceHolder = new TakenSurfaceHolder(); 471 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 472 } 473 } 474 475 // Compute surface insets required to draw at specified Z value. 476 // TODO: Use real shadow insets for a constant max Z. 477 if (!attrs.hasManualSurfaceInsets) { 478 final int surfaceInset = (int) Math.ceil(view.getZ() * 2); 479 attrs.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset); 480 } 481 482 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 483 mTranslator = compatibilityInfo.getTranslator(); 484 485 // If the application owns the surface, don't enable hardware acceleration 486 if (mSurfaceHolder == null) { 487 enableHardwareAcceleration(attrs); 488 } 489 490 boolean restore = false; 491 if (mTranslator != null) { 492 mSurface.setCompatibilityTranslator(mTranslator); 493 restore = true; 494 attrs.backup(); 495 mTranslator.translateWindowLayout(attrs); 496 } 497 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 498 499 if (!compatibilityInfo.supportsScreen()) { 500 attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 501 mLastInCompatMode = true; 502 } 503 504 mSoftInputMode = attrs.softInputMode; 505 mWindowAttributesChanged = true; 506 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 507 mAttachInfo.mRootView = view; 508 mAttachInfo.mScalingRequired = mTranslator != null; 509 mAttachInfo.mApplicationScale = 510 mTranslator == null ? 1.0f : mTranslator.applicationScale; 511 if (panelParentView != null) { 512 mAttachInfo.mPanelParentWindowToken 513 = panelParentView.getApplicationWindowToken(); 514 } 515 mAdded = true; 516 int res; /* = WindowManagerImpl.ADD_OKAY; */ 517 518 // Schedule the first layout -before- adding to the window 519 // manager, to make sure we do the relayout before receiving 520 // any other events from the system. 521 requestLayout(); 522 if ((mWindowAttributes.inputFeatures 523 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 524 mInputChannel = new InputChannel(); 525 } 526 try { 527 mOrigWindowType = mWindowAttributes.type; 528 mAttachInfo.mRecomputeGlobalAttributes = true; 529 collectViewAttributes(); 530 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 531 getHostVisibility(), mDisplay.getDisplayId(), 532 mAttachInfo.mContentInsets, mAttachInfo.mStableInsets, mInputChannel); 533 } catch (RemoteException e) { 534 mAdded = false; 535 mView = null; 536 mAttachInfo.mRootView = null; 537 mInputChannel = null; 538 mFallbackEventHandler.setView(null); 539 unscheduleTraversals(); 540 setAccessibilityFocus(null, null); 541 throw new RuntimeException("Adding window failed", e); 542 } finally { 543 if (restore) { 544 attrs.restore(); 545 } 546 } 547 548 if (mTranslator != null) { 549 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 550 } 551 mPendingOverscanInsets.set(0, 0, 0, 0); 552 mPendingContentInsets.set(mAttachInfo.mContentInsets); 553 mPendingStableInsets.set(mAttachInfo.mStableInsets); 554 mPendingVisibleInsets.set(0, 0, 0, 0); 555 try { 556 relayoutWindow(attrs, getHostVisibility(), false); 557 } catch (RemoteException e) { 558 if (DEBUG_LAYOUT) Log.e(TAG, "failed to relayoutWindow", e); 559 } 560 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 561 if (res < WindowManagerGlobal.ADD_OKAY) { 562 mAttachInfo.mRootView = null; 563 mAdded = false; 564 mFallbackEventHandler.setView(null); 565 unscheduleTraversals(); 566 setAccessibilityFocus(null, null); 567 switch (res) { 568 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 569 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 570 throw new WindowManager.BadTokenException( 571 "Unable to add window -- token " + attrs.token 572 + " is not valid; is your activity running?"); 573 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 574 throw new WindowManager.BadTokenException( 575 "Unable to add window -- token " + attrs.token 576 + " is not for an application"); 577 case WindowManagerGlobal.ADD_APP_EXITING: 578 throw new WindowManager.BadTokenException( 579 "Unable to add window -- app for token " + attrs.token 580 + " is exiting"); 581 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 582 throw new WindowManager.BadTokenException( 583 "Unable to add window -- window " + mWindow 584 + " has already been added"); 585 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 586 // Silently ignore -- we would have just removed it 587 // right away, anyway. 588 return; 589 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 590 throw new WindowManager.BadTokenException( 591 "Unable to add window " + mWindow + 592 " -- another window of this type already exists"); 593 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 594 throw new WindowManager.BadTokenException( 595 "Unable to add window " + mWindow + 596 " -- permission denied for this window type"); 597 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 598 throw new WindowManager.InvalidDisplayException( 599 "Unable to add window " + mWindow + 600 " -- the specified display can not be found"); 601 case WindowManagerGlobal.ADD_INVALID_TYPE: 602 throw new WindowManager.InvalidDisplayException( 603 "Unable to add window " + mWindow 604 + " -- the specified window type is not valid"); 605 } 606 throw new RuntimeException( 607 "Unable to add window -- unknown error code " + res); 608 } 609 610 if (view instanceof RootViewSurfaceTaker) { 611 mInputQueueCallback = 612 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 613 } 614 if (mInputChannel != null) { 615 if (mInputQueueCallback != null) { 616 mInputQueue = new InputQueue(); 617 mInputQueueCallback.onInputQueueCreated(mInputQueue); 618 } 619 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 620 Looper.myLooper()); 621 } 622 623 view.assignParent(this); 624 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 625 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 626 627 if (mAccessibilityManager.isEnabled()) { 628 mAccessibilityInteractionConnectionManager.ensureConnection(); 629 } 630 631 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 632 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 633 } 634 635 // Set up the input pipeline. 636 CharSequence counterSuffix = attrs.getTitle(); 637 mSyntheticInputStage = new SyntheticInputStage(); 638 InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage); 639 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 640 "aq:native-post-ime:" + counterSuffix); 641 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 642 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 643 "aq:ime:" + counterSuffix); 644 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 645 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 646 "aq:native-pre-ime:" + counterSuffix); 647 648 mFirstInputStage = nativePreImeStage; 649 mFirstPostImeInputStage = earlyPostImeStage; 650 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 651 } 652 } 653 } 654 655 /** Whether the window is in local focus mode or not */ 656 private boolean isInLocalFocusMode() { 657 return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0; 658 } 659 660 public CharSequence getTitle() { 661 return mWindowAttributes.getTitle(); 662 } 663 664 void destroyHardwareResources() { 665 if (mAttachInfo.mHardwareRenderer != null) { 666 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 667 mAttachInfo.mHardwareRenderer.destroy(); 668 } 669 } 670 671 public void detachFunctor(long functor) { 672 // TODO: Make the resize buffer some other way to not need this block 673 mBlockResizeBuffer = true; 674 if (mAttachInfo.mHardwareRenderer != null) { 675 // Fence so that any pending invokeFunctor() messages will be processed 676 // before we return from detachFunctor. 677 mAttachInfo.mHardwareRenderer.stopDrawing(); 678 } 679 } 680 681 /** 682 * Schedules the functor for execution in either kModeProcess or 683 * kModeProcessNoContext, depending on whether or not there is an EGLContext. 684 * 685 * @param functor The native functor to invoke 686 * @param waitForCompletion If true, this will not return until the functor 687 * has invoked. If false, the functor may be invoked 688 * asynchronously. 689 */ 690 public void invokeFunctor(long functor, boolean waitForCompletion) { 691 ThreadedRenderer.invokeFunctor(functor, waitForCompletion); 692 } 693 694 public void registerAnimatingRenderNode(RenderNode animator) { 695 if (mAttachInfo.mHardwareRenderer != null) { 696 mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator); 697 } else { 698 if (mAttachInfo.mPendingAnimatingRenderNodes == null) { 699 mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>(); 700 } 701 mAttachInfo.mPendingAnimatingRenderNodes.add(animator); 702 } 703 } 704 705 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 706 mAttachInfo.mHardwareAccelerated = false; 707 mAttachInfo.mHardwareAccelerationRequested = false; 708 709 // Don't enable hardware acceleration when the application is in compatibility mode 710 if (mTranslator != null) return; 711 712 // Try to enable hardware acceleration if requested 713 final boolean hardwareAccelerated = 714 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 715 716 if (hardwareAccelerated) { 717 if (!HardwareRenderer.isAvailable()) { 718 return; 719 } 720 721 // Persistent processes (including the system) should not do 722 // accelerated rendering on low-end devices. In that case, 723 // sRendererDisabled will be set. In addition, the system process 724 // itself should never do accelerated rendering. In that case, both 725 // sRendererDisabled and sSystemRendererDisabled are set. When 726 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 727 // can be used by code on the system process to escape that and enable 728 // HW accelerated drawing. (This is basically for the lock screen.) 729 730 final boolean fakeHwAccelerated = (attrs.privateFlags & 731 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 732 final boolean forceHwAccelerated = (attrs.privateFlags & 733 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 734 735 if (fakeHwAccelerated) { 736 // This is exclusively for the preview windows the window manager 737 // shows for launching applications, so they will look more like 738 // the app being launched. 739 mAttachInfo.mHardwareAccelerationRequested = true; 740 } else if (!HardwareRenderer.sRendererDisabled 741 || (HardwareRenderer.sSystemRendererDisabled && forceHwAccelerated)) { 742 if (mAttachInfo.mHardwareRenderer != null) { 743 mAttachInfo.mHardwareRenderer.destroy(); 744 } 745 746 final Rect insets = attrs.surfaceInsets; 747 final boolean hasSurfaceInsets = insets.left != 0 || insets.right != 0 748 || insets.top != 0 || insets.bottom != 0; 749 final boolean translucent = attrs.format != PixelFormat.OPAQUE || hasSurfaceInsets; 750 mAttachInfo.mHardwareRenderer = HardwareRenderer.create(mContext, translucent); 751 if (mAttachInfo.mHardwareRenderer != null) { 752 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 753 mAttachInfo.mHardwareAccelerated = 754 mAttachInfo.mHardwareAccelerationRequested = true; 755 } 756 } 757 } 758 } 759 760 public View getView() { 761 return mView; 762 } 763 764 final WindowLeaked getLocation() { 765 return mLocation; 766 } 767 768 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 769 synchronized (this) { 770 final int oldInsetLeft = mWindowAttributes.surfaceInsets.left; 771 final int oldInsetTop = mWindowAttributes.surfaceInsets.top; 772 final int oldInsetRight = mWindowAttributes.surfaceInsets.right; 773 final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom; 774 final int oldSoftInputMode = mWindowAttributes.softInputMode; 775 final boolean oldHasManualSurfaceInsets = mWindowAttributes.hasManualSurfaceInsets; 776 777 // Keep track of the actual window flags supplied by the client. 778 mClientWindowLayoutFlags = attrs.flags; 779 780 // Preserve compatible window flag if exists. 781 final int compatibleWindowFlag = mWindowAttributes.privateFlags 782 & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 783 784 // Transfer over system UI visibility values as they carry current state. 785 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 786 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 787 788 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 789 if ((mWindowAttributesChangesFlag 790 & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) { 791 // Recompute system ui visibility. 792 mAttachInfo.mRecomputeGlobalAttributes = true; 793 } 794 if (mWindowAttributes.packageName == null) { 795 mWindowAttributes.packageName = mBasePackageName; 796 } 797 mWindowAttributes.privateFlags |= compatibleWindowFlag; 798 799 // Restore old surface insets. 800 mWindowAttributes.surfaceInsets.set( 801 oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom); 802 mWindowAttributes.hasManualSurfaceInsets = oldHasManualSurfaceInsets; 803 804 applyKeepScreenOnFlag(mWindowAttributes); 805 806 if (newView) { 807 mSoftInputMode = attrs.softInputMode; 808 requestLayout(); 809 } 810 811 // Don't lose the mode we last auto-computed. 812 if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 813 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 814 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 815 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 816 | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 817 } 818 819 mWindowAttributesChanged = true; 820 scheduleTraversals(); 821 } 822 } 823 824 void handleAppVisibility(boolean visible) { 825 if (mAppVisible != visible) { 826 mAppVisible = visible; 827 scheduleTraversals(); 828 if (!mAppVisible) { 829 WindowManagerGlobal.trimForeground(); 830 } 831 } 832 } 833 834 void handleGetNewSurface() { 835 mNewSurfaceNeeded = true; 836 mFullRedrawNeeded = true; 837 scheduleTraversals(); 838 } 839 840 private final DisplayListener mDisplayListener = new DisplayListener() { 841 @Override 842 public void onDisplayChanged(int displayId) { 843 if (mView != null && mDisplay.getDisplayId() == displayId) { 844 final int oldDisplayState = mAttachInfo.mDisplayState; 845 final int newDisplayState = mDisplay.getState(); 846 if (oldDisplayState != newDisplayState) { 847 mAttachInfo.mDisplayState = newDisplayState; 848 pokeDrawLockIfNeeded(); 849 if (oldDisplayState != Display.STATE_UNKNOWN) { 850 final int oldScreenState = toViewScreenState(oldDisplayState); 851 final int newScreenState = toViewScreenState(newDisplayState); 852 if (oldScreenState != newScreenState) { 853 mView.dispatchScreenStateChanged(newScreenState); 854 } 855 if (oldDisplayState == Display.STATE_OFF) { 856 // Draw was suppressed so we need to for it to happen here. 857 mFullRedrawNeeded = true; 858 scheduleTraversals(); 859 } 860 } 861 } 862 } 863 } 864 865 @Override 866 public void onDisplayRemoved(int displayId) { 867 } 868 869 @Override 870 public void onDisplayAdded(int displayId) { 871 } 872 873 private int toViewScreenState(int displayState) { 874 return displayState == Display.STATE_OFF ? 875 View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON; 876 } 877 }; 878 879 void pokeDrawLockIfNeeded() { 880 final int displayState = mAttachInfo.mDisplayState; 881 if (mView != null && mAdded && mTraversalScheduled 882 && (displayState == Display.STATE_DOZE 883 || displayState == Display.STATE_DOZE_SUSPEND)) { 884 try { 885 mWindowSession.pokeDrawLock(mWindow); 886 } catch (RemoteException ex) { 887 // System server died, oh well. 888 } 889 } 890 } 891 892 @Override 893 public void requestFitSystemWindows() { 894 checkThread(); 895 mApplyInsetsRequested = true; 896 scheduleTraversals(); 897 } 898 899 @Override 900 public void requestLayout() { 901 if (!mHandlingLayoutInLayoutRequest) { 902 checkThread(); 903 mLayoutRequested = true; 904 scheduleTraversals(); 905 } 906 } 907 908 @Override 909 public boolean isLayoutRequested() { 910 return mLayoutRequested; 911 } 912 913 void invalidate() { 914 mDirty.set(0, 0, mWidth, mHeight); 915 if (!mWillDrawSoon) { 916 scheduleTraversals(); 917 } 918 } 919 920 void invalidateWorld(View view) { 921 view.invalidate(); 922 if (view instanceof ViewGroup) { 923 ViewGroup parent = (ViewGroup) view; 924 for (int i = 0; i < parent.getChildCount(); i++) { 925 invalidateWorld(parent.getChildAt(i)); 926 } 927 } 928 } 929 930 @Override 931 public void invalidateChild(View child, Rect dirty) { 932 invalidateChildInParent(null, dirty); 933 } 934 935 @Override 936 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 937 checkThread(); 938 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 939 940 if (dirty == null) { 941 invalidate(); 942 return null; 943 } else if (dirty.isEmpty() && !mIsAnimating) { 944 return null; 945 } 946 947 if (mCurScrollY != 0 || mTranslator != null) { 948 mTempRect.set(dirty); 949 dirty = mTempRect; 950 if (mCurScrollY != 0) { 951 dirty.offset(0, -mCurScrollY); 952 } 953 if (mTranslator != null) { 954 mTranslator.translateRectInAppWindowToScreen(dirty); 955 } 956 if (mAttachInfo.mScalingRequired) { 957 dirty.inset(-1, -1); 958 } 959 } 960 961 final Rect localDirty = mDirty; 962 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 963 mAttachInfo.mSetIgnoreDirtyState = true; 964 mAttachInfo.mIgnoreDirtyState = true; 965 } 966 967 // Add the new dirty rect to the current one 968 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 969 // Intersect with the bounds of the window to skip 970 // updates that lie outside of the visible region 971 final float appScale = mAttachInfo.mApplicationScale; 972 final boolean intersected = localDirty.intersect(0, 0, 973 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 974 if (!intersected) { 975 localDirty.setEmpty(); 976 } 977 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 978 scheduleTraversals(); 979 } 980 981 return null; 982 } 983 984 void setStopped(boolean stopped) { 985 if (mStopped != stopped) { 986 mStopped = stopped; 987 if (!stopped) { 988 scheduleTraversals(); 989 } 990 } 991 } 992 993 @Override 994 public ViewParent getParent() { 995 return null; 996 } 997 998 @Override 999 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 1000 if (child != mView) { 1001 throw new RuntimeException("child is not mine, honest!"); 1002 } 1003 // Note: don't apply scroll offset, because we want to know its 1004 // visibility in the virtual canvas being given to the view hierarchy. 1005 return r.intersect(0, 0, mWidth, mHeight); 1006 } 1007 1008 @Override 1009 public void bringChildToFront(View child) { 1010 } 1011 1012 int getHostVisibility() { 1013 return mAppVisible ? mView.getVisibility() : View.GONE; 1014 } 1015 1016 void disposeResizeBuffer() { 1017 if (mResizeBuffer != null) { 1018 mResizeBuffer.destroy(); 1019 mResizeBuffer = null; 1020 } 1021 } 1022 1023 /** 1024 * Add LayoutTransition to the list of transitions to be started in the next traversal. 1025 * This list will be cleared after the transitions on the list are start()'ed. These 1026 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 1027 * happens during the layout phase of traversal, which we want to complete before any of the 1028 * animations are started (because those animations may side-effect properties that layout 1029 * depends upon, like the bounding rectangles of the affected views). So we add the transition 1030 * to the list and it is started just prior to starting the drawing phase of traversal. 1031 * 1032 * @param transition The LayoutTransition to be started on the next traversal. 1033 * 1034 * @hide 1035 */ 1036 public void requestTransitionStart(LayoutTransition transition) { 1037 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 1038 if (mPendingTransitions == null) { 1039 mPendingTransitions = new ArrayList<LayoutTransition>(); 1040 } 1041 mPendingTransitions.add(transition); 1042 } 1043 } 1044 1045 /** 1046 * Notifies the HardwareRenderer that a new frame will be coming soon. 1047 * Currently only {@link ThreadedRenderer} cares about this, and uses 1048 * this knowledge to adjust the scheduling of off-thread animations 1049 */ 1050 void notifyRendererOfFramePending() { 1051 if (mAttachInfo.mHardwareRenderer != null) { 1052 mAttachInfo.mHardwareRenderer.notifyFramePending(); 1053 } 1054 } 1055 1056 void scheduleTraversals() { 1057 if (!mTraversalScheduled) { 1058 mTraversalScheduled = true; 1059 mTraversalBarrier = mHandler.getLooper().getQueue().postSyncBarrier(); 1060 mChoreographer.postCallback( 1061 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1062 if (!mUnbufferedInputDispatch) { 1063 scheduleConsumeBatchedInput(); 1064 } 1065 notifyRendererOfFramePending(); 1066 pokeDrawLockIfNeeded(); 1067 } 1068 } 1069 1070 void unscheduleTraversals() { 1071 if (mTraversalScheduled) { 1072 mTraversalScheduled = false; 1073 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1074 mChoreographer.removeCallbacks( 1075 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1076 } 1077 } 1078 1079 void doTraversal() { 1080 if (mTraversalScheduled) { 1081 mTraversalScheduled = false; 1082 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1083 1084 if (mProfile) { 1085 Debug.startMethodTracing("ViewAncestor"); 1086 } 1087 1088 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1089 try { 1090 performTraversals(); 1091 } finally { 1092 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1093 } 1094 1095 if (mProfile) { 1096 Debug.stopMethodTracing(); 1097 mProfile = false; 1098 } 1099 } 1100 } 1101 1102 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1103 // Update window's global keep screen on flag: if a view has requested 1104 // that the screen be kept on, then it is always set; otherwise, it is 1105 // set to whatever the client last requested for the global state. 1106 if (mAttachInfo.mKeepScreenOn) { 1107 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1108 } else { 1109 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1110 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1111 } 1112 } 1113 1114 private boolean collectViewAttributes() { 1115 if (mAttachInfo.mRecomputeGlobalAttributes) { 1116 //Log.i(TAG, "Computing view hierarchy attributes!"); 1117 mAttachInfo.mRecomputeGlobalAttributes = false; 1118 boolean oldScreenOn = mAttachInfo.mKeepScreenOn; 1119 mAttachInfo.mKeepScreenOn = false; 1120 mAttachInfo.mSystemUiVisibility = 0; 1121 mAttachInfo.mHasSystemUiListeners = false; 1122 mView.dispatchCollectViewAttributes(mAttachInfo, 0); 1123 mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility; 1124 WindowManager.LayoutParams params = mWindowAttributes; 1125 mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params); 1126 if (mAttachInfo.mKeepScreenOn != oldScreenOn 1127 || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1128 || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1129 applyKeepScreenOnFlag(params); 1130 params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1131 params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners; 1132 mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility); 1133 return true; 1134 } 1135 } 1136 return false; 1137 } 1138 1139 private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) { 1140 int vis = 0; 1141 // Translucent decor window flags imply stable system ui visibility. 1142 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) { 1143 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; 1144 } 1145 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) { 1146 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 1147 } 1148 return vis; 1149 } 1150 1151 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1152 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1153 int childWidthMeasureSpec; 1154 int childHeightMeasureSpec; 1155 boolean windowSizeMayChange = false; 1156 1157 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1158 "Measuring " + host + " in display " + desiredWindowWidth 1159 + "x" + desiredWindowHeight + "..."); 1160 1161 boolean goodMeasure = false; 1162 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1163 // On large screens, we don't want to allow dialogs to just 1164 // stretch to fill the entire width of the screen to display 1165 // one line of text. First try doing the layout at a smaller 1166 // size to see if it will fit. 1167 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1168 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1169 int baseSize = 0; 1170 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1171 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1172 } 1173 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1174 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1175 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1176 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1177 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1178 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1179 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1180 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1181 goodMeasure = true; 1182 } else { 1183 // Didn't fit in that size... try expanding a bit. 1184 baseSize = (baseSize+desiredWindowWidth)/2; 1185 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1186 + baseSize); 1187 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1188 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1189 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1190 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1191 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1192 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1193 goodMeasure = true; 1194 } 1195 } 1196 } 1197 } 1198 1199 if (!goodMeasure) { 1200 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1201 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1202 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1203 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1204 windowSizeMayChange = true; 1205 } 1206 } 1207 1208 if (DBG) { 1209 System.out.println("======================================"); 1210 System.out.println("performTraversals -- after measure"); 1211 host.debug(); 1212 } 1213 1214 return windowSizeMayChange; 1215 } 1216 1217 /** 1218 * Modifies the input matrix such that it maps view-local coordinates to 1219 * on-screen coordinates. 1220 * 1221 * @param m input matrix to modify 1222 */ 1223 void transformMatrixToGlobal(Matrix m) { 1224 m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 1225 } 1226 1227 /** 1228 * Modifies the input matrix such that it maps on-screen coordinates to 1229 * view-local coordinates. 1230 * 1231 * @param m input matrix to modify 1232 */ 1233 void transformMatrixToLocal(Matrix m) { 1234 m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 1235 } 1236 1237 /* package */ WindowInsets getWindowInsets(boolean forceConstruct) { 1238 if (mLastWindowInsets == null || forceConstruct) { 1239 mDispatchContentInsets.set(mAttachInfo.mContentInsets); 1240 mDispatchStableInsets.set(mAttachInfo.mStableInsets); 1241 Rect contentInsets = mDispatchContentInsets; 1242 Rect stableInsets = mDispatchStableInsets; 1243 // For dispatch we preserve old logic, but for direct requests from Views we allow to 1244 // immediately use pending insets. 1245 if (!forceConstruct 1246 && (!mPendingContentInsets.equals(contentInsets) || 1247 !mPendingStableInsets.equals(stableInsets))) { 1248 contentInsets = mPendingContentInsets; 1249 stableInsets = mPendingStableInsets; 1250 } 1251 final boolean isRound = (mIsEmulator && mIsCircularEmulator) || mWindowIsRound; 1252 mLastWindowInsets = new WindowInsets(contentInsets, 1253 null /* windowDecorInsets */, stableInsets, isRound); 1254 } 1255 return mLastWindowInsets; 1256 } 1257 1258 void dispatchApplyInsets(View host) { 1259 host.dispatchApplyWindowInsets(getWindowInsets(true /* forceConstruct */)); 1260 } 1261 1262 private void performTraversals() { 1263 // cache mView since it is used so much below... 1264 final View host = mView; 1265 1266 if (DBG) { 1267 System.out.println("======================================"); 1268 System.out.println("performTraversals"); 1269 host.debug(); 1270 } 1271 1272 if (host == null || !mAdded) 1273 return; 1274 1275 mIsInTraversal = true; 1276 mWillDrawSoon = true; 1277 boolean windowSizeMayChange = false; 1278 boolean newSurface = false; 1279 boolean surfaceChanged = false; 1280 WindowManager.LayoutParams lp = mWindowAttributes; 1281 1282 int desiredWindowWidth; 1283 int desiredWindowHeight; 1284 1285 final int viewVisibility = getHostVisibility(); 1286 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1287 || mNewSurfaceNeeded; 1288 1289 WindowManager.LayoutParams params = null; 1290 if (mWindowAttributesChanged) { 1291 mWindowAttributesChanged = false; 1292 surfaceChanged = true; 1293 params = lp; 1294 } 1295 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 1296 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1297 params = lp; 1298 mFullRedrawNeeded = true; 1299 mLayoutRequested = true; 1300 if (mLastInCompatMode) { 1301 params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1302 mLastInCompatMode = false; 1303 } else { 1304 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1305 mLastInCompatMode = true; 1306 } 1307 } 1308 1309 mWindowAttributesChangesFlag = 0; 1310 1311 Rect frame = mWinFrame; 1312 if (mFirst) { 1313 mFullRedrawNeeded = true; 1314 mLayoutRequested = true; 1315 1316 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1317 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1318 // NOTE -- system code, won't try to do compat mode. 1319 Point size = new Point(); 1320 mDisplay.getRealSize(size); 1321 desiredWindowWidth = size.x; 1322 desiredWindowHeight = size.y; 1323 } else { 1324 DisplayMetrics packageMetrics = 1325 mView.getContext().getResources().getDisplayMetrics(); 1326 desiredWindowWidth = packageMetrics.widthPixels; 1327 desiredWindowHeight = packageMetrics.heightPixels; 1328 } 1329 1330 // We used to use the following condition to choose 32 bits drawing caches: 1331 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1332 // However, windows are now always 32 bits by default, so choose 32 bits 1333 mAttachInfo.mUse32BitDrawingCache = true; 1334 mAttachInfo.mHasWindowFocus = false; 1335 mAttachInfo.mWindowVisibility = viewVisibility; 1336 mAttachInfo.mRecomputeGlobalAttributes = false; 1337 viewVisibilityChanged = false; 1338 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1339 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1340 // Set the layout direction if it has not been set before (inherit is the default) 1341 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1342 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1343 } 1344 host.dispatchAttachedToWindow(mAttachInfo, 0); 1345 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1346 dispatchApplyInsets(host); 1347 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1348 1349 } else { 1350 desiredWindowWidth = frame.width(); 1351 desiredWindowHeight = frame.height(); 1352 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1353 if (DEBUG_ORIENTATION) Log.v(TAG, 1354 "View " + host + " resized to: " + frame); 1355 mFullRedrawNeeded = true; 1356 mLayoutRequested = true; 1357 windowSizeMayChange = true; 1358 } 1359 } 1360 1361 if (viewVisibilityChanged) { 1362 mAttachInfo.mWindowVisibility = viewVisibility; 1363 host.dispatchWindowVisibilityChanged(viewVisibility); 1364 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1365 destroyHardwareResources(); 1366 } 1367 if (viewVisibility == View.GONE) { 1368 // After making a window gone, we will count it as being 1369 // shown for the first time the next time it gets focus. 1370 mHasHadWindowFocus = false; 1371 } 1372 } 1373 1374 // Non-visible windows can't hold accessibility focus. 1375 if (mAttachInfo.mWindowVisibility != View.VISIBLE) { 1376 host.clearAccessibilityFocus(); 1377 } 1378 1379 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1380 getRunQueue().executeActions(mAttachInfo.mHandler); 1381 1382 boolean insetsChanged = false; 1383 1384 boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw); 1385 if (layoutRequested) { 1386 1387 final Resources res = mView.getContext().getResources(); 1388 1389 if (mFirst) { 1390 // make sure touch mode code executes by setting cached value 1391 // to opposite of the added touch mode. 1392 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1393 ensureTouchModeLocally(mAddedTouchMode); 1394 } else { 1395 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1396 insetsChanged = true; 1397 } 1398 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1399 insetsChanged = true; 1400 } 1401 if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) { 1402 insetsChanged = true; 1403 } 1404 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1405 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1406 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1407 + mAttachInfo.mVisibleInsets); 1408 } 1409 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1410 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1411 windowSizeMayChange = true; 1412 1413 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1414 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1415 // NOTE -- system code, won't try to do compat mode. 1416 Point size = new Point(); 1417 mDisplay.getRealSize(size); 1418 desiredWindowWidth = size.x; 1419 desiredWindowHeight = size.y; 1420 } else { 1421 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1422 desiredWindowWidth = packageMetrics.widthPixels; 1423 desiredWindowHeight = packageMetrics.heightPixels; 1424 } 1425 } 1426 } 1427 1428 // Ask host how big it wants to be 1429 windowSizeMayChange |= measureHierarchy(host, lp, res, 1430 desiredWindowWidth, desiredWindowHeight); 1431 } 1432 1433 if (collectViewAttributes()) { 1434 params = lp; 1435 } 1436 if (mAttachInfo.mForceReportNewAttributes) { 1437 mAttachInfo.mForceReportNewAttributes = false; 1438 params = lp; 1439 } 1440 1441 if (mFirst || mAttachInfo.mViewVisibilityChanged) { 1442 mAttachInfo.mViewVisibilityChanged = false; 1443 int resizeMode = mSoftInputMode & 1444 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1445 // If we are in auto resize mode, then we need to determine 1446 // what mode to use now. 1447 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1448 final int N = mAttachInfo.mScrollContainers.size(); 1449 for (int i=0; i<N; i++) { 1450 if (mAttachInfo.mScrollContainers.get(i).isShown()) { 1451 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1452 } 1453 } 1454 if (resizeMode == 0) { 1455 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1456 } 1457 if ((lp.softInputMode & 1458 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1459 lp.softInputMode = (lp.softInputMode & 1460 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1461 resizeMode; 1462 params = lp; 1463 } 1464 } 1465 } 1466 1467 if (params != null) { 1468 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1469 if (!PixelFormat.formatHasAlpha(params.format)) { 1470 params.format = PixelFormat.TRANSLUCENT; 1471 } 1472 } 1473 mAttachInfo.mOverscanRequested = (params.flags 1474 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1475 } 1476 1477 if (mApplyInsetsRequested) { 1478 mApplyInsetsRequested = false; 1479 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1480 dispatchApplyInsets(host); 1481 if (mLayoutRequested) { 1482 // Short-circuit catching a new layout request here, so 1483 // we don't need to go through two layout passes when things 1484 // change due to fitting system windows, which can happen a lot. 1485 windowSizeMayChange |= measureHierarchy(host, lp, 1486 mView.getContext().getResources(), 1487 desiredWindowWidth, desiredWindowHeight); 1488 } 1489 } 1490 1491 if (layoutRequested) { 1492 // Clear this now, so that if anything requests a layout in the 1493 // rest of this function we will catch it and re-run a full 1494 // layout pass. 1495 mLayoutRequested = false; 1496 } 1497 1498 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1499 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1500 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1501 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1502 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1503 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1504 1505 // Determine whether to compute insets. 1506 // If there are no inset listeners remaining then we may still need to compute 1507 // insets in case the old insets were non-empty and must be reset. 1508 final boolean computesInternalInsets = 1509 mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() 1510 || mAttachInfo.mHasNonEmptyGivenInternalInsets; 1511 1512 boolean insetsPending = false; 1513 int relayoutResult = 0; 1514 1515 if (mFirst || windowShouldResize || insetsChanged || 1516 viewVisibilityChanged || params != null) { 1517 1518 if (viewVisibility == View.VISIBLE) { 1519 // If this window is giving internal insets to the window 1520 // manager, and it is being added or changing its visibility, 1521 // then we want to first give the window manager "fake" 1522 // insets to cause it to effectively ignore the content of 1523 // the window during layout. This avoids it briefly causing 1524 // other windows to resize/move based on the raw frame of the 1525 // window, waiting until we can finish laying out this window 1526 // and get back to the window manager with the ultimately 1527 // computed insets. 1528 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1529 } 1530 1531 if (mSurfaceHolder != null) { 1532 mSurfaceHolder.mSurfaceLock.lock(); 1533 mDrawingAllowed = true; 1534 } 1535 1536 boolean hwInitialized = false; 1537 boolean contentInsetsChanged = false; 1538 boolean hadSurface = mSurface.isValid(); 1539 1540 try { 1541 if (DEBUG_LAYOUT) { 1542 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1543 host.getMeasuredHeight() + ", params=" + params); 1544 } 1545 1546 if (mAttachInfo.mHardwareRenderer != null) { 1547 // relayoutWindow may decide to destroy mSurface. As that decision 1548 // happens in WindowManager service, we need to be defensive here 1549 // and stop using the surface in case it gets destroyed. 1550 if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) { 1551 // Animations were running so we need to push a frame 1552 // to resume them 1553 mDirty.set(0, 0, mWidth, mHeight); 1554 } 1555 mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED); 1556 } 1557 final int surfaceGenerationId = mSurface.getGenerationId(); 1558 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1559 if (!mDrawDuringWindowsAnimating && 1560 (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1561 mWindowsAnimating = true; 1562 } 1563 1564 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1565 + " overscan=" + mPendingOverscanInsets.toShortString() 1566 + " content=" + mPendingContentInsets.toShortString() 1567 + " visible=" + mPendingVisibleInsets.toShortString() 1568 + " visible=" + mPendingStableInsets.toShortString() 1569 + " surface=" + mSurface); 1570 1571 if (mPendingConfiguration.seq != 0) { 1572 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1573 + mPendingConfiguration); 1574 updateConfiguration(mPendingConfiguration, !mFirst); 1575 mPendingConfiguration.seq = 0; 1576 } 1577 1578 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1579 mAttachInfo.mOverscanInsets); 1580 contentInsetsChanged = !mPendingContentInsets.equals( 1581 mAttachInfo.mContentInsets); 1582 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1583 mAttachInfo.mVisibleInsets); 1584 final boolean stableInsetsChanged = !mPendingStableInsets.equals( 1585 mAttachInfo.mStableInsets); 1586 if (contentInsetsChanged) { 1587 if (mWidth > 0 && mHeight > 0 && lp != null && 1588 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1589 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1590 mSurface != null && mSurface.isValid() && 1591 !mAttachInfo.mTurnOffWindowResizeAnim && 1592 mAttachInfo.mHardwareRenderer != null && 1593 mAttachInfo.mHardwareRenderer.isEnabled() && 1594 lp != null && !PixelFormat.formatHasAlpha(lp.format) 1595 && !mBlockResizeBuffer) { 1596 1597 disposeResizeBuffer(); 1598 1599// TODO: Again.... 1600// if (mResizeBuffer == null) { 1601// mResizeBuffer = mAttachInfo.mHardwareRenderer.createDisplayListLayer( 1602// mWidth, mHeight); 1603// } 1604// mResizeBuffer.prepare(mWidth, mHeight, false); 1605// RenderNode layerRenderNode = mResizeBuffer.startRecording(); 1606// HardwareCanvas layerCanvas = layerRenderNode.start(mWidth, mHeight); 1607// try { 1608// final int restoreCount = layerCanvas.save(); 1609// 1610// int yoff; 1611// final boolean scrolling = mScroller != null 1612// && mScroller.computeScrollOffset(); 1613// if (scrolling) { 1614// yoff = mScroller.getCurrY(); 1615// mScroller.abortAnimation(); 1616// } else { 1617// yoff = mScrollY; 1618// } 1619// 1620// layerCanvas.translate(0, -yoff); 1621// if (mTranslator != null) { 1622// mTranslator.translateCanvas(layerCanvas); 1623// } 1624// 1625// RenderNode renderNode = mView.mRenderNode; 1626// if (renderNode != null && renderNode.isValid()) { 1627// layerCanvas.drawDisplayList(renderNode, null, 1628// RenderNode.FLAG_CLIP_CHILDREN); 1629// } else { 1630// mView.draw(layerCanvas); 1631// } 1632// 1633// drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1634// 1635// mResizeBufferStartTime = SystemClock.uptimeMillis(); 1636// mResizeBufferDuration = mView.getResources().getInteger( 1637// com.android.internal.R.integer.config_mediumAnimTime); 1638// 1639// layerCanvas.restoreToCount(restoreCount); 1640// layerRenderNode.end(layerCanvas); 1641// layerRenderNode.setCaching(true); 1642// layerRenderNode.setLeftTopRightBottom(0, 0, mWidth, mHeight); 1643// mTempRect.set(0, 0, mWidth, mHeight); 1644// } finally { 1645// mResizeBuffer.endRecording(mTempRect); 1646// } 1647// mAttachInfo.mHardwareRenderer.flushLayerUpdates(); 1648 } 1649 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1650 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1651 + mAttachInfo.mContentInsets); 1652 } 1653 if (overscanInsetsChanged) { 1654 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1655 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1656 + mAttachInfo.mOverscanInsets); 1657 // Need to relayout with content insets. 1658 contentInsetsChanged = true; 1659 } 1660 if (stableInsetsChanged) { 1661 mAttachInfo.mStableInsets.set(mPendingStableInsets); 1662 if (DEBUG_LAYOUT) Log.v(TAG, "Decor insets changing to: " 1663 + mAttachInfo.mStableInsets); 1664 // Need to relayout with content insets. 1665 contentInsetsChanged = true; 1666 } 1667 if (contentInsetsChanged || mLastSystemUiVisibility != 1668 mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested 1669 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1670 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1671 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1672 mApplyInsetsRequested = false; 1673 dispatchApplyInsets(host); 1674 } 1675 if (visibleInsetsChanged) { 1676 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1677 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1678 + mAttachInfo.mVisibleInsets); 1679 } 1680 1681 if (!hadSurface) { 1682 if (mSurface.isValid()) { 1683 // If we are creating a new surface, then we need to 1684 // completely redraw it. Also, when we get to the 1685 // point of drawing it we will hold off and schedule 1686 // a new traversal instead. This is so we can tell the 1687 // window manager about all of the windows being displayed 1688 // before actually drawing them, so it can display then 1689 // all at once. 1690 newSurface = true; 1691 mFullRedrawNeeded = true; 1692 mPreviousTransparentRegion.setEmpty(); 1693 1694 if (mAttachInfo.mHardwareRenderer != null) { 1695 try { 1696 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1697 mSurface); 1698 } catch (OutOfResourcesException e) { 1699 handleOutOfResourcesException(e); 1700 return; 1701 } 1702 } 1703 } 1704 } else if (!mSurface.isValid()) { 1705 // If the surface has been removed, then reset the scroll 1706 // positions. 1707 if (mLastScrolledFocus != null) { 1708 mLastScrolledFocus.clear(); 1709 } 1710 mScrollY = mCurScrollY = 0; 1711 if (mView instanceof RootViewSurfaceTaker) { 1712 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 1713 } 1714 if (mScroller != null) { 1715 mScroller.abortAnimation(); 1716 } 1717 disposeResizeBuffer(); 1718 // Our surface is gone 1719 if (mAttachInfo.mHardwareRenderer != null && 1720 mAttachInfo.mHardwareRenderer.isEnabled()) { 1721 mAttachInfo.mHardwareRenderer.destroy(); 1722 } 1723 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1724 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1725 mFullRedrawNeeded = true; 1726 try { 1727 mAttachInfo.mHardwareRenderer.updateSurface(mSurface); 1728 } catch (OutOfResourcesException e) { 1729 handleOutOfResourcesException(e); 1730 return; 1731 } 1732 } 1733 } catch (RemoteException e) { 1734 } 1735 1736 if (DEBUG_ORIENTATION) Log.v( 1737 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1738 1739 mAttachInfo.mWindowLeft = frame.left; 1740 mAttachInfo.mWindowTop = frame.top; 1741 1742 // !!FIXME!! This next section handles the case where we did not get the 1743 // window size we asked for. We should avoid this by getting a maximum size from 1744 // the window session beforehand. 1745 if (mWidth != frame.width() || mHeight != frame.height()) { 1746 mWidth = frame.width(); 1747 mHeight = frame.height(); 1748 } 1749 1750 if (mSurfaceHolder != null) { 1751 // The app owns the surface; tell it about what is going on. 1752 if (mSurface.isValid()) { 1753 // XXX .copyFrom() doesn't work! 1754 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1755 mSurfaceHolder.mSurface = mSurface; 1756 } 1757 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1758 mSurfaceHolder.mSurfaceLock.unlock(); 1759 if (mSurface.isValid()) { 1760 if (!hadSurface) { 1761 mSurfaceHolder.ungetCallbacks(); 1762 1763 mIsCreating = true; 1764 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1765 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1766 if (callbacks != null) { 1767 for (SurfaceHolder.Callback c : callbacks) { 1768 c.surfaceCreated(mSurfaceHolder); 1769 } 1770 } 1771 surfaceChanged = true; 1772 } 1773 if (surfaceChanged) { 1774 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1775 lp.format, mWidth, mHeight); 1776 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1777 if (callbacks != null) { 1778 for (SurfaceHolder.Callback c : callbacks) { 1779 c.surfaceChanged(mSurfaceHolder, lp.format, 1780 mWidth, mHeight); 1781 } 1782 } 1783 } 1784 mIsCreating = false; 1785 } else if (hadSurface) { 1786 mSurfaceHolder.ungetCallbacks(); 1787 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1788 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1789 if (callbacks != null) { 1790 for (SurfaceHolder.Callback c : callbacks) { 1791 c.surfaceDestroyed(mSurfaceHolder); 1792 } 1793 } 1794 mSurfaceHolder.mSurfaceLock.lock(); 1795 try { 1796 mSurfaceHolder.mSurface = new Surface(); 1797 } finally { 1798 mSurfaceHolder.mSurfaceLock.unlock(); 1799 } 1800 } 1801 } 1802 1803 if (mAttachInfo.mHardwareRenderer != null && 1804 mAttachInfo.mHardwareRenderer.isEnabled()) { 1805 if (hwInitialized || 1806 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1807 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1808 mAttachInfo.mHardwareRenderer.setup( 1809 mWidth, mHeight, mWindowAttributes.surfaceInsets); 1810 if (!hwInitialized) { 1811 mAttachInfo.mHardwareRenderer.invalidate(mSurface); 1812 mFullRedrawNeeded = true; 1813 } 1814 } 1815 } 1816 1817 if (!mStopped || mReportNextDraw) { 1818 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1819 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1820 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1821 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1822 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1823 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1824 1825 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1826 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1827 + " mHeight=" + mHeight 1828 + " measuredHeight=" + host.getMeasuredHeight() 1829 + " coveredInsetsChanged=" + contentInsetsChanged); 1830 1831 // Ask host how big it wants to be 1832 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1833 1834 // Implementation of weights from WindowManager.LayoutParams 1835 // We just grow the dimensions as needed and re-measure if 1836 // needs be 1837 int width = host.getMeasuredWidth(); 1838 int height = host.getMeasuredHeight(); 1839 boolean measureAgain = false; 1840 1841 if (lp.horizontalWeight > 0.0f) { 1842 width += (int) ((mWidth - width) * lp.horizontalWeight); 1843 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1844 MeasureSpec.EXACTLY); 1845 measureAgain = true; 1846 } 1847 if (lp.verticalWeight > 0.0f) { 1848 height += (int) ((mHeight - height) * lp.verticalWeight); 1849 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1850 MeasureSpec.EXACTLY); 1851 measureAgain = true; 1852 } 1853 1854 if (measureAgain) { 1855 if (DEBUG_LAYOUT) Log.v(TAG, 1856 "And hey let's measure once more: width=" + width 1857 + " height=" + height); 1858 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1859 } 1860 1861 layoutRequested = true; 1862 } 1863 } 1864 } else { 1865 // Not the first pass and no window/insets/visibility change but the window 1866 // may have moved and we need check that and if so to update the left and right 1867 // in the attach info. We translate only the window frame since on window move 1868 // the window manager tells us only for the new frame but the insets are the 1869 // same and we do not want to translate them more than once. 1870 1871 // TODO: Well, we are checking whether the frame has changed similarly 1872 // to how this is done for the insets. This is however incorrect since 1873 // the insets and the frame are translated. For example, the old frame 1874 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1875 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1876 // true since we are comparing a not translated value to a translated one. 1877 // This scenario is rare but we may want to fix that. 1878 1879 final boolean windowMoved = (mAttachInfo.mWindowLeft != frame.left 1880 || mAttachInfo.mWindowTop != frame.top); 1881 if (windowMoved) { 1882 if (mTranslator != null) { 1883 mTranslator.translateRectInScreenToAppWinFrame(frame); 1884 } 1885 mAttachInfo.mWindowLeft = frame.left; 1886 mAttachInfo.mWindowTop = frame.top; 1887 } 1888 } 1889 1890 final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw); 1891 boolean triggerGlobalLayoutListener = didLayout 1892 || mAttachInfo.mRecomputeGlobalAttributes; 1893 if (didLayout) { 1894 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1895 1896 // By this point all views have been sized and positioned 1897 // We can compute the transparent area 1898 1899 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1900 // start out transparent 1901 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1902 host.getLocationInWindow(mTmpLocation); 1903 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1904 mTmpLocation[0] + host.mRight - host.mLeft, 1905 mTmpLocation[1] + host.mBottom - host.mTop); 1906 1907 host.gatherTransparentRegion(mTransparentRegion); 1908 if (mTranslator != null) { 1909 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1910 } 1911 1912 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1913 mPreviousTransparentRegion.set(mTransparentRegion); 1914 mFullRedrawNeeded = true; 1915 // reconfigure window manager 1916 try { 1917 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1918 } catch (RemoteException e) { 1919 } 1920 } 1921 } 1922 1923 if (DBG) { 1924 System.out.println("======================================"); 1925 System.out.println("performTraversals -- after setFrame"); 1926 host.debug(); 1927 } 1928 } 1929 1930 if (triggerGlobalLayoutListener) { 1931 mAttachInfo.mRecomputeGlobalAttributes = false; 1932 mAttachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1933 } 1934 1935 if (computesInternalInsets) { 1936 // Clear the original insets. 1937 final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets; 1938 insets.reset(); 1939 1940 // Compute new insets in place. 1941 mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1942 mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty(); 1943 1944 // Tell the window manager. 1945 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1946 mLastGivenInsets.set(insets); 1947 1948 // Translate insets to screen coordinates if needed. 1949 final Rect contentInsets; 1950 final Rect visibleInsets; 1951 final Region touchableRegion; 1952 if (mTranslator != null) { 1953 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1954 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1955 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1956 } else { 1957 contentInsets = insets.contentInsets; 1958 visibleInsets = insets.visibleInsets; 1959 touchableRegion = insets.touchableRegion; 1960 } 1961 1962 try { 1963 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1964 contentInsets, visibleInsets, touchableRegion); 1965 } catch (RemoteException e) { 1966 } 1967 } 1968 } 1969 1970 boolean skipDraw = false; 1971 1972 if (mFirst) { 1973 // handle first focus request 1974 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1975 + mView.hasFocus()); 1976 if (mView != null) { 1977 if (!mView.hasFocus()) { 1978 mView.requestFocus(View.FOCUS_FORWARD); 1979 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1980 + mView.findFocus()); 1981 } else { 1982 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1983 + mView.findFocus()); 1984 } 1985 } 1986 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1987 // The first time we relayout the window, if the system is 1988 // doing window animations, we want to hold of on any future 1989 // draws until the animation is done. 1990 mWindowsAnimating = true; 1991 } 1992 } else if (mWindowsAnimating) { 1993 skipDraw = true; 1994 } 1995 1996 mFirst = false; 1997 mWillDrawSoon = false; 1998 mNewSurfaceNeeded = false; 1999 mViewVisibility = viewVisibility; 2000 2001 if (mAttachInfo.mHasWindowFocus && !isInLocalFocusMode()) { 2002 final boolean imTarget = WindowManager.LayoutParams 2003 .mayUseInputMethod(mWindowAttributes.flags); 2004 if (imTarget != mLastWasImTarget) { 2005 mLastWasImTarget = imTarget; 2006 InputMethodManager imm = InputMethodManager.peekInstance(); 2007 if (imm != null && imTarget) { 2008 imm.startGettingWindowFocus(mView); 2009 imm.onWindowFocus(mView, mView.findFocus(), 2010 mWindowAttributes.softInputMode, 2011 !mHasHadWindowFocus, mWindowAttributes.flags); 2012 } 2013 } 2014 } 2015 2016 // Remember if we must report the next draw. 2017 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 2018 mReportNextDraw = true; 2019 } 2020 2021 boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || 2022 viewVisibility != View.VISIBLE; 2023 2024 if (!cancelDraw && !newSurface) { 2025 if (!skipDraw || mReportNextDraw) { 2026 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2027 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2028 mPendingTransitions.get(i).startChangingAnimations(); 2029 } 2030 mPendingTransitions.clear(); 2031 } 2032 2033 performDraw(); 2034 } 2035 } else { 2036 if (viewVisibility == View.VISIBLE) { 2037 // Try again 2038 scheduleTraversals(); 2039 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2040 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2041 mPendingTransitions.get(i).endChangingAnimations(); 2042 } 2043 mPendingTransitions.clear(); 2044 } 2045 } 2046 2047 mIsInTraversal = false; 2048 } 2049 2050 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 2051 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 2052 try { 2053 if (!mWindowSession.outOfMemory(mWindow) && 2054 Process.myUid() != Process.SYSTEM_UID) { 2055 Slog.w(TAG, "No processes killed for memory; killing self"); 2056 Process.killProcess(Process.myPid()); 2057 } 2058 } catch (RemoteException ex) { 2059 } 2060 mLayoutRequested = true; // ask wm for a new surface next time. 2061 } 2062 2063 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 2064 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 2065 try { 2066 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 2067 } finally { 2068 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2069 } 2070 } 2071 2072 /** 2073 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 2074 * is currently undergoing a layout pass. 2075 * 2076 * @return whether the view hierarchy is currently undergoing a layout pass 2077 */ 2078 boolean isInLayout() { 2079 return mInLayout; 2080 } 2081 2082 /** 2083 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 2084 * undergoing a layout pass. requestLayout() should not generally be called during layout, 2085 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 2086 * all children in that container hierarchy are measured and laid out at the end of the layout 2087 * pass for that container). If requestLayout() is called anyway, we handle it correctly 2088 * by registering all requesters during a frame as it proceeds. At the end of the frame, 2089 * we check all of those views to see if any still have pending layout requests, which 2090 * indicates that they were not correctly handled by their container hierarchy. If that is 2091 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 2092 * to blank containers, and force a second request/measure/layout pass in this frame. If 2093 * more requestLayout() calls are received during that second layout pass, we post those 2094 * requests to the next frame to avoid possible infinite loops. 2095 * 2096 * <p>The return value from this method indicates whether the request should proceed 2097 * (if it is a request during the first layout pass) or should be skipped and posted to the 2098 * next frame (if it is a request during the second layout pass).</p> 2099 * 2100 * @param view the view that requested the layout. 2101 * 2102 * @return true if request should proceed, false otherwise. 2103 */ 2104 boolean requestLayoutDuringLayout(final View view) { 2105 if (view.mParent == null || view.mAttachInfo == null) { 2106 // Would not normally trigger another layout, so just let it pass through as usual 2107 return true; 2108 } 2109 if (!mLayoutRequesters.contains(view)) { 2110 mLayoutRequesters.add(view); 2111 } 2112 if (!mHandlingLayoutInLayoutRequest) { 2113 // Let the request proceed normally; it will be processed in a second layout pass 2114 // if necessary 2115 return true; 2116 } else { 2117 // Don't let the request proceed during the second layout pass. 2118 // It will post to the next frame instead. 2119 return false; 2120 } 2121 } 2122 2123 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 2124 int desiredWindowHeight) { 2125 mLayoutRequested = false; 2126 mScrollMayChange = true; 2127 mInLayout = true; 2128 2129 final View host = mView; 2130 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 2131 Log.v(TAG, "Laying out " + host + " to (" + 2132 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 2133 } 2134 2135 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2136 try { 2137 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2138 2139 mInLayout = false; 2140 int numViewsRequestingLayout = mLayoutRequesters.size(); 2141 if (numViewsRequestingLayout > 0) { 2142 // requestLayout() was called during layout. 2143 // If no layout-request flags are set on the requesting views, there is no problem. 2144 // If some requests are still pending, then we need to clear those flags and do 2145 // a full request/measure/layout pass to handle this situation. 2146 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2147 false); 2148 if (validLayoutRequesters != null) { 2149 // Set this flag to indicate that any further requests are happening during 2150 // the second pass, which may result in posting those requests to the next 2151 // frame instead 2152 mHandlingLayoutInLayoutRequest = true; 2153 2154 // Process fresh layout requests, then measure and layout 2155 int numValidRequests = validLayoutRequesters.size(); 2156 for (int i = 0; i < numValidRequests; ++i) { 2157 final View view = validLayoutRequesters.get(i); 2158 Log.w("View", "requestLayout() improperly called by " + view + 2159 " during layout: running second layout pass"); 2160 view.requestLayout(); 2161 } 2162 measureHierarchy(host, lp, mView.getContext().getResources(), 2163 desiredWindowWidth, desiredWindowHeight); 2164 mInLayout = true; 2165 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2166 2167 mHandlingLayoutInLayoutRequest = false; 2168 2169 // Check the valid requests again, this time without checking/clearing the 2170 // layout flags, since requests happening during the second pass get noop'd 2171 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2172 if (validLayoutRequesters != null) { 2173 final ArrayList<View> finalRequesters = validLayoutRequesters; 2174 // Post second-pass requests to the next frame 2175 getRunQueue().post(new Runnable() { 2176 @Override 2177 public void run() { 2178 int numValidRequests = finalRequesters.size(); 2179 for (int i = 0; i < numValidRequests; ++i) { 2180 final View view = finalRequesters.get(i); 2181 Log.w("View", "requestLayout() improperly called by " + view + 2182 " during second layout pass: posting in next frame"); 2183 view.requestLayout(); 2184 } 2185 } 2186 }); 2187 } 2188 } 2189 2190 } 2191 } finally { 2192 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2193 } 2194 mInLayout = false; 2195 } 2196 2197 /** 2198 * This method is called during layout when there have been calls to requestLayout() during 2199 * layout. It walks through the list of views that requested layout to determine which ones 2200 * still need it, based on visibility in the hierarchy and whether they have already been 2201 * handled (as is usually the case with ListView children). 2202 * 2203 * @param layoutRequesters The list of views that requested layout during layout 2204 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2205 * If so, the FORCE_LAYOUT flag was not set on requesters. 2206 * @return A list of the actual views that still need to be laid out. 2207 */ 2208 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2209 boolean secondLayoutRequests) { 2210 2211 int numViewsRequestingLayout = layoutRequesters.size(); 2212 ArrayList<View> validLayoutRequesters = null; 2213 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2214 View view = layoutRequesters.get(i); 2215 if (view != null && view.mAttachInfo != null && view.mParent != null && 2216 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2217 View.PFLAG_FORCE_LAYOUT)) { 2218 boolean gone = false; 2219 View parent = view; 2220 // Only trigger new requests for views in a non-GONE hierarchy 2221 while (parent != null) { 2222 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2223 gone = true; 2224 break; 2225 } 2226 if (parent.mParent instanceof View) { 2227 parent = (View) parent.mParent; 2228 } else { 2229 parent = null; 2230 } 2231 } 2232 if (!gone) { 2233 if (validLayoutRequesters == null) { 2234 validLayoutRequesters = new ArrayList<View>(); 2235 } 2236 validLayoutRequesters.add(view); 2237 } 2238 } 2239 } 2240 if (!secondLayoutRequests) { 2241 // If we're checking the layout flags, then we need to clean them up also 2242 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2243 View view = layoutRequesters.get(i); 2244 while (view != null && 2245 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2246 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2247 if (view.mParent instanceof View) { 2248 view = (View) view.mParent; 2249 } else { 2250 view = null; 2251 } 2252 } 2253 } 2254 } 2255 layoutRequesters.clear(); 2256 return validLayoutRequesters; 2257 } 2258 2259 @Override 2260 public void requestTransparentRegion(View child) { 2261 // the test below should not fail unless someone is messing with us 2262 checkThread(); 2263 if (mView == child) { 2264 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2265 // Need to make sure we re-evaluate the window attributes next 2266 // time around, to ensure the window has the correct format. 2267 mWindowAttributesChanged = true; 2268 mWindowAttributesChangesFlag = 0; 2269 requestLayout(); 2270 } 2271 } 2272 2273 /** 2274 * Figures out the measure spec for the root view in a window based on it's 2275 * layout params. 2276 * 2277 * @param windowSize 2278 * The available width or height of the window 2279 * 2280 * @param rootDimension 2281 * The layout params for one dimension (width or height) of the 2282 * window. 2283 * 2284 * @return The measure spec to use to measure the root view. 2285 */ 2286 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2287 int measureSpec; 2288 switch (rootDimension) { 2289 2290 case ViewGroup.LayoutParams.MATCH_PARENT: 2291 // Window can't resize. Force root view to be windowSize. 2292 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2293 break; 2294 case ViewGroup.LayoutParams.WRAP_CONTENT: 2295 // Window can resize. Set max size for root view. 2296 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2297 break; 2298 default: 2299 // Window wants to be an exact size. Force root view to be that size. 2300 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2301 break; 2302 } 2303 return measureSpec; 2304 } 2305 2306 int mHardwareXOffset; 2307 int mHardwareYOffset; 2308 int mResizeAlpha; 2309 final Paint mResizePaint = new Paint(); 2310 2311 @Override 2312 public void onHardwarePreDraw(HardwareCanvas canvas) { 2313 canvas.translate(-mHardwareXOffset, -mHardwareYOffset); 2314 } 2315 2316 @Override 2317 public void onHardwarePostDraw(HardwareCanvas canvas) { 2318 if (mResizeBuffer != null) { 2319 mResizePaint.setAlpha(mResizeAlpha); 2320 canvas.drawHardwareLayer(mResizeBuffer, mHardwareXOffset, mHardwareYOffset, 2321 mResizePaint); 2322 } 2323 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2324 } 2325 2326 /** 2327 * @hide 2328 */ 2329 void outputDisplayList(View view) { 2330 RenderNode renderNode = view.getDisplayList(); 2331 if (renderNode != null) { 2332 renderNode.output(); 2333 } 2334 } 2335 2336 /** 2337 * @see #PROPERTY_PROFILE_RENDERING 2338 */ 2339 private void profileRendering(boolean enabled) { 2340 if (mProfileRendering) { 2341 mRenderProfilingEnabled = enabled; 2342 2343 if (mRenderProfiler != null) { 2344 mChoreographer.removeFrameCallback(mRenderProfiler); 2345 } 2346 if (mRenderProfilingEnabled) { 2347 if (mRenderProfiler == null) { 2348 mRenderProfiler = new Choreographer.FrameCallback() { 2349 @Override 2350 public void doFrame(long frameTimeNanos) { 2351 mDirty.set(0, 0, mWidth, mHeight); 2352 scheduleTraversals(); 2353 if (mRenderProfilingEnabled) { 2354 mChoreographer.postFrameCallback(mRenderProfiler); 2355 } 2356 } 2357 }; 2358 } 2359 mChoreographer.postFrameCallback(mRenderProfiler); 2360 } else { 2361 mRenderProfiler = null; 2362 } 2363 } 2364 } 2365 2366 /** 2367 * Called from draw() when DEBUG_FPS is enabled 2368 */ 2369 private void trackFPS() { 2370 // Tracks frames per second drawn. First value in a series of draws may be bogus 2371 // because it down not account for the intervening idle time 2372 long nowTime = System.currentTimeMillis(); 2373 if (mFpsStartTime < 0) { 2374 mFpsStartTime = mFpsPrevTime = nowTime; 2375 mFpsNumFrames = 0; 2376 } else { 2377 ++mFpsNumFrames; 2378 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2379 long frameTime = nowTime - mFpsPrevTime; 2380 long totalTime = nowTime - mFpsStartTime; 2381 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2382 mFpsPrevTime = nowTime; 2383 if (totalTime > 1000) { 2384 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2385 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2386 mFpsStartTime = nowTime; 2387 mFpsNumFrames = 0; 2388 } 2389 } 2390 } 2391 2392 private void performDraw() { 2393 if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) { 2394 return; 2395 } 2396 2397 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2398 mFullRedrawNeeded = false; 2399 2400 mIsDrawing = true; 2401 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2402 try { 2403 draw(fullRedrawNeeded); 2404 } finally { 2405 mIsDrawing = false; 2406 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2407 } 2408 2409 // For whatever reason we didn't create a HardwareRenderer, end any 2410 // hardware animations that are now dangling 2411 if (mAttachInfo.mPendingAnimatingRenderNodes != null) { 2412 final int count = mAttachInfo.mPendingAnimatingRenderNodes.size(); 2413 for (int i = 0; i < count; i++) { 2414 mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators(); 2415 } 2416 mAttachInfo.mPendingAnimatingRenderNodes.clear(); 2417 } 2418 2419 if (mReportNextDraw) { 2420 mReportNextDraw = false; 2421 if (mAttachInfo.mHardwareRenderer != null) { 2422 mAttachInfo.mHardwareRenderer.fence(); 2423 } 2424 2425 if (LOCAL_LOGV) { 2426 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2427 } 2428 if (mSurfaceHolder != null && mSurface.isValid()) { 2429 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2430 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2431 if (callbacks != null) { 2432 for (SurfaceHolder.Callback c : callbacks) { 2433 if (c instanceof SurfaceHolder.Callback2) { 2434 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2435 mSurfaceHolder); 2436 } 2437 } 2438 } 2439 } 2440 try { 2441 mWindowSession.finishDrawing(mWindow); 2442 } catch (RemoteException e) { 2443 } 2444 } 2445 } 2446 2447 private void draw(boolean fullRedrawNeeded) { 2448 Surface surface = mSurface; 2449 if (!surface.isValid()) { 2450 return; 2451 } 2452 2453 if (DEBUG_FPS) { 2454 trackFPS(); 2455 } 2456 2457 if (!sFirstDrawComplete) { 2458 synchronized (sFirstDrawHandlers) { 2459 sFirstDrawComplete = true; 2460 final int count = sFirstDrawHandlers.size(); 2461 for (int i = 0; i< count; i++) { 2462 mHandler.post(sFirstDrawHandlers.get(i)); 2463 } 2464 } 2465 } 2466 2467 scrollToRectOrFocus(null, false); 2468 2469 if (mAttachInfo.mViewScrollChanged) { 2470 mAttachInfo.mViewScrollChanged = false; 2471 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 2472 } 2473 2474 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2475 final int curScrollY; 2476 if (animating) { 2477 curScrollY = mScroller.getCurrY(); 2478 } else { 2479 curScrollY = mScrollY; 2480 } 2481 if (mCurScrollY != curScrollY) { 2482 mCurScrollY = curScrollY; 2483 fullRedrawNeeded = true; 2484 if (mView instanceof RootViewSurfaceTaker) { 2485 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 2486 } 2487 } 2488 2489 final float appScale = mAttachInfo.mApplicationScale; 2490 final boolean scalingRequired = mAttachInfo.mScalingRequired; 2491 2492 int resizeAlpha = 0; 2493 if (mResizeBuffer != null) { 2494 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2495 if (deltaTime < mResizeBufferDuration) { 2496 float amt = deltaTime/(float) mResizeBufferDuration; 2497 amt = mResizeInterpolator.getInterpolation(amt); 2498 animating = true; 2499 resizeAlpha = 255 - (int)(amt*255); 2500 } else { 2501 disposeResizeBuffer(); 2502 } 2503 } 2504 2505 final Rect dirty = mDirty; 2506 if (mSurfaceHolder != null) { 2507 // The app owns the surface, we won't draw. 2508 dirty.setEmpty(); 2509 if (animating) { 2510 if (mScroller != null) { 2511 mScroller.abortAnimation(); 2512 } 2513 disposeResizeBuffer(); 2514 } 2515 return; 2516 } 2517 2518 if (fullRedrawNeeded) { 2519 mAttachInfo.mIgnoreDirtyState = true; 2520 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2521 } 2522 2523 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2524 Log.v(TAG, "Draw " + mView + "/" 2525 + mWindowAttributes.getTitle() 2526 + ": dirty={" + dirty.left + "," + dirty.top 2527 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2528 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2529 appScale + ", width=" + mWidth + ", height=" + mHeight); 2530 } 2531 2532 mAttachInfo.mTreeObserver.dispatchOnDraw(); 2533 2534 int xOffset = 0; 2535 int yOffset = curScrollY; 2536 final WindowManager.LayoutParams params = mWindowAttributes; 2537 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 2538 if (surfaceInsets != null) { 2539 xOffset -= surfaceInsets.left; 2540 yOffset -= surfaceInsets.top; 2541 2542 // Offset dirty rect for surface insets. 2543 dirty.offset(surfaceInsets.left, surfaceInsets.right); 2544 } 2545 2546 boolean accessibilityFocusDirty = false; 2547 final Drawable drawable = mAttachInfo.mAccessibilityFocusDrawable; 2548 if (drawable != null) { 2549 final Rect bounds = mAttachInfo.mTmpInvalRect; 2550 final boolean hasFocus = getAccessibilityFocusedRect(bounds); 2551 if (!hasFocus) { 2552 bounds.setEmpty(); 2553 } 2554 if (!bounds.equals(drawable.getBounds())) { 2555 accessibilityFocusDirty = true; 2556 } 2557 } 2558 2559 mAttachInfo.mDrawingTime = 2560 mChoreographer.getFrameTimeNanos() / TimeUtils.NANOS_PER_MS; 2561 2562 if (!dirty.isEmpty() || mIsAnimating || accessibilityFocusDirty) { 2563 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 2564 // If accessibility focus moved, always invalidate the root. 2565 boolean invalidateRoot = accessibilityFocusDirty; 2566 2567 // Draw with hardware renderer. 2568 mIsAnimating = false; 2569 2570 if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) { 2571 mHardwareYOffset = yOffset; 2572 mHardwareXOffset = xOffset; 2573 invalidateRoot = true; 2574 } 2575 mResizeAlpha = resizeAlpha; 2576 2577 if (invalidateRoot) { 2578 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2579 } 2580 2581 dirty.setEmpty(); 2582 2583 mBlockResizeBuffer = false; 2584 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this); 2585 } else { 2586 // If we get here with a disabled & requested hardware renderer, something went 2587 // wrong (an invalidate posted right before we destroyed the hardware surface 2588 // for instance) so we should just bail out. Locking the surface with software 2589 // rendering at this point would lock it forever and prevent hardware renderer 2590 // from doing its job when it comes back. 2591 // Before we request a new frame we must however attempt to reinitiliaze the 2592 // hardware renderer if it's in requested state. This would happen after an 2593 // eglTerminate() for instance. 2594 if (mAttachInfo.mHardwareRenderer != null && 2595 !mAttachInfo.mHardwareRenderer.isEnabled() && 2596 mAttachInfo.mHardwareRenderer.isRequested()) { 2597 2598 try { 2599 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2600 mWidth, mHeight, mSurface, surfaceInsets); 2601 } catch (OutOfResourcesException e) { 2602 handleOutOfResourcesException(e); 2603 return; 2604 } 2605 2606 mFullRedrawNeeded = true; 2607 scheduleTraversals(); 2608 return; 2609 } 2610 2611 if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) { 2612 return; 2613 } 2614 } 2615 } 2616 2617 if (animating) { 2618 mFullRedrawNeeded = true; 2619 scheduleTraversals(); 2620 } 2621 } 2622 2623 /** 2624 * @return true if drawing was successful, false if an error occurred 2625 */ 2626 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff, 2627 boolean scalingRequired, Rect dirty) { 2628 2629 // Draw with software renderer. 2630 final Canvas canvas; 2631 try { 2632 final int left = dirty.left; 2633 final int top = dirty.top; 2634 final int right = dirty.right; 2635 final int bottom = dirty.bottom; 2636 2637 canvas = mSurface.lockCanvas(dirty); 2638 2639 // The dirty rectangle can be modified by Surface.lockCanvas() 2640 //noinspection ConstantConditions 2641 if (left != dirty.left || top != dirty.top || right != dirty.right 2642 || bottom != dirty.bottom) { 2643 attachInfo.mIgnoreDirtyState = true; 2644 } 2645 2646 // TODO: Do this in native 2647 canvas.setDensity(mDensity); 2648 } catch (Surface.OutOfResourcesException e) { 2649 handleOutOfResourcesException(e); 2650 return false; 2651 } catch (IllegalArgumentException e) { 2652 Log.e(TAG, "Could not lock surface", e); 2653 // Don't assume this is due to out of memory, it could be 2654 // something else, and if it is something else then we could 2655 // kill stuff (or ourself) for no reason. 2656 mLayoutRequested = true; // ask wm for a new surface next time. 2657 return false; 2658 } 2659 2660 try { 2661 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2662 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2663 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2664 //canvas.drawARGB(255, 255, 0, 0); 2665 } 2666 2667 // If this bitmap's format includes an alpha channel, we 2668 // need to clear it before drawing so that the child will 2669 // properly re-composite its drawing on a transparent 2670 // background. This automatically respects the clip/dirty region 2671 // or 2672 // If we are applying an offset, we need to clear the area 2673 // where the offset doesn't appear to avoid having garbage 2674 // left in the blank areas. 2675 if (!canvas.isOpaque() || yoff != 0 || xoff != 0) { 2676 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2677 } 2678 2679 dirty.setEmpty(); 2680 mIsAnimating = false; 2681 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2682 2683 if (DEBUG_DRAW) { 2684 Context cxt = mView.getContext(); 2685 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2686 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2687 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2688 } 2689 try { 2690 canvas.translate(-xoff, -yoff); 2691 if (mTranslator != null) { 2692 mTranslator.translateCanvas(canvas); 2693 } 2694 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2695 attachInfo.mSetIgnoreDirtyState = false; 2696 2697 mView.draw(canvas); 2698 2699 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2700 } finally { 2701 if (!attachInfo.mSetIgnoreDirtyState) { 2702 // Only clear the flag if it was not set during the mView.draw() call 2703 attachInfo.mIgnoreDirtyState = false; 2704 } 2705 } 2706 } finally { 2707 try { 2708 surface.unlockCanvasAndPost(canvas); 2709 } catch (IllegalArgumentException e) { 2710 Log.e(TAG, "Could not unlock surface", e); 2711 mLayoutRequested = true; // ask wm for a new surface next time. 2712 //noinspection ReturnInsideFinallyBlock 2713 return false; 2714 } 2715 2716 if (LOCAL_LOGV) { 2717 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2718 } 2719 } 2720 return true; 2721 } 2722 2723 /** 2724 * We want to draw a highlight around the current accessibility focused. 2725 * Since adding a style for all possible view is not a viable option we 2726 * have this specialized drawing method. 2727 * 2728 * Note: We are doing this here to be able to draw the highlight for 2729 * virtual views in addition to real ones. 2730 * 2731 * @param canvas The canvas on which to draw. 2732 */ 2733 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2734 final Rect bounds = mAttachInfo.mTmpInvalRect; 2735 if (getAccessibilityFocusedRect(bounds)) { 2736 final Drawable drawable = getAccessibilityFocusedDrawable(); 2737 if (drawable != null) { 2738 drawable.setBounds(bounds); 2739 drawable.draw(canvas); 2740 } 2741 } else if (mAttachInfo.mAccessibilityFocusDrawable != null) { 2742 mAttachInfo.mAccessibilityFocusDrawable.setBounds(0, 0, 0, 0); 2743 } 2744 } 2745 2746 private boolean getAccessibilityFocusedRect(Rect bounds) { 2747 final AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2748 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2749 return false; 2750 } 2751 2752 final View host = mAccessibilityFocusedHost; 2753 if (host == null || host.mAttachInfo == null) { 2754 return false; 2755 } 2756 2757 final AccessibilityNodeProvider provider = host.getAccessibilityNodeProvider(); 2758 if (provider == null) { 2759 host.getBoundsOnScreen(bounds, true); 2760 } else if (mAccessibilityFocusedVirtualView != null) { 2761 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2762 } else { 2763 return false; 2764 } 2765 2766 final AttachInfo attachInfo = mAttachInfo; 2767 bounds.offset(-attachInfo.mWindowLeft, -attachInfo.mWindowTop); 2768 bounds.intersect(0, 0, attachInfo.mViewRootImpl.mWidth, attachInfo.mViewRootImpl.mHeight); 2769 return !bounds.isEmpty(); 2770 } 2771 2772 private Drawable getAccessibilityFocusedDrawable() { 2773 // Lazily load the accessibility focus drawable. 2774 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2775 final TypedValue value = new TypedValue(); 2776 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2777 R.attr.accessibilityFocusedDrawable, value, true); 2778 if (resolved) { 2779 mAttachInfo.mAccessibilityFocusDrawable = 2780 mView.mContext.getDrawable(value.resourceId); 2781 } 2782 } 2783 return mAttachInfo.mAccessibilityFocusDrawable; 2784 } 2785 2786 /** 2787 * @hide 2788 */ 2789 public void setDrawDuringWindowsAnimating(boolean value) { 2790 mDrawDuringWindowsAnimating = value; 2791 if (value) { 2792 handleDispatchDoneAnimating(); 2793 } 2794 } 2795 2796 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2797 final Rect ci = mAttachInfo.mContentInsets; 2798 final Rect vi = mAttachInfo.mVisibleInsets; 2799 int scrollY = 0; 2800 boolean handled = false; 2801 2802 if (vi.left > ci.left || vi.top > ci.top 2803 || vi.right > ci.right || vi.bottom > ci.bottom) { 2804 // We'll assume that we aren't going to change the scroll 2805 // offset, since we want to avoid that unless it is actually 2806 // going to make the focus visible... otherwise we scroll 2807 // all over the place. 2808 scrollY = mScrollY; 2809 // We can be called for two different situations: during a draw, 2810 // to update the scroll position if the focus has changed (in which 2811 // case 'rectangle' is null), or in response to a 2812 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2813 // is non-null and we just want to scroll to whatever that 2814 // rectangle is). 2815 final View focus = mView.findFocus(); 2816 if (focus == null) { 2817 return false; 2818 } 2819 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2820 if (focus != lastScrolledFocus) { 2821 // If the focus has changed, then ignore any requests to scroll 2822 // to a rectangle; first we want to make sure the entire focus 2823 // view is visible. 2824 rectangle = null; 2825 } 2826 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2827 + " rectangle=" + rectangle + " ci=" + ci 2828 + " vi=" + vi); 2829 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2830 // Optimization: if the focus hasn't changed since last 2831 // time, and no layout has happened, then just leave things 2832 // as they are. 2833 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2834 + mScrollY + " vi=" + vi.toShortString()); 2835 } else { 2836 // We need to determine if the currently focused view is 2837 // within the visible part of the window and, if not, apply 2838 // a pan so it can be seen. 2839 mLastScrolledFocus = new WeakReference<View>(focus); 2840 mScrollMayChange = false; 2841 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2842 // Try to find the rectangle from the focus view. 2843 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2844 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2845 + mView.getWidth() + " h=" + mView.getHeight() 2846 + " ci=" + ci.toShortString() 2847 + " vi=" + vi.toShortString()); 2848 if (rectangle == null) { 2849 focus.getFocusedRect(mTempRect); 2850 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2851 + ": focusRect=" + mTempRect.toShortString()); 2852 if (mView instanceof ViewGroup) { 2853 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2854 focus, mTempRect); 2855 } 2856 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2857 "Focus in window: focusRect=" 2858 + mTempRect.toShortString() 2859 + " visRect=" + mVisRect.toShortString()); 2860 } else { 2861 mTempRect.set(rectangle); 2862 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2863 "Request scroll to rect: " 2864 + mTempRect.toShortString() 2865 + " visRect=" + mVisRect.toShortString()); 2866 } 2867 if (mTempRect.intersect(mVisRect)) { 2868 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2869 "Focus window visible rect: " 2870 + mTempRect.toShortString()); 2871 if (mTempRect.height() > 2872 (mView.getHeight()-vi.top-vi.bottom)) { 2873 // If the focus simply is not going to fit, then 2874 // best is probably just to leave things as-is. 2875 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2876 "Too tall; leaving scrollY=" + scrollY); 2877 } else if ((mTempRect.top-scrollY) < vi.top) { 2878 scrollY -= vi.top - (mTempRect.top-scrollY); 2879 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2880 "Top covered; scrollY=" + scrollY); 2881 } else if ((mTempRect.bottom-scrollY) 2882 > (mView.getHeight()-vi.bottom)) { 2883 scrollY += (mTempRect.bottom-scrollY) 2884 - (mView.getHeight()-vi.bottom); 2885 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2886 "Bottom covered; scrollY=" + scrollY); 2887 } 2888 handled = true; 2889 } 2890 } 2891 } 2892 } 2893 2894 if (scrollY != mScrollY) { 2895 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2896 + mScrollY + " , new=" + scrollY); 2897 if (!immediate && mResizeBuffer == null) { 2898 if (mScroller == null) { 2899 mScroller = new Scroller(mView.getContext()); 2900 } 2901 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2902 } else if (mScroller != null) { 2903 mScroller.abortAnimation(); 2904 } 2905 mScrollY = scrollY; 2906 } 2907 2908 return handled; 2909 } 2910 2911 /** 2912 * @hide 2913 */ 2914 public View getAccessibilityFocusedHost() { 2915 return mAccessibilityFocusedHost; 2916 } 2917 2918 /** 2919 * @hide 2920 */ 2921 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2922 return mAccessibilityFocusedVirtualView; 2923 } 2924 2925 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2926 // If we have a virtual view with accessibility focus we need 2927 // to clear the focus and invalidate the virtual view bounds. 2928 if (mAccessibilityFocusedVirtualView != null) { 2929 2930 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2931 View focusHost = mAccessibilityFocusedHost; 2932 2933 // Wipe the state of the current accessibility focus since 2934 // the call into the provider to clear accessibility focus 2935 // will fire an accessibility event which will end up calling 2936 // this method and we want to have clean state when this 2937 // invocation happens. 2938 mAccessibilityFocusedHost = null; 2939 mAccessibilityFocusedVirtualView = null; 2940 2941 // Clear accessibility focus on the host after clearing state since 2942 // this method may be reentrant. 2943 focusHost.clearAccessibilityFocusNoCallbacks(); 2944 2945 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2946 if (provider != null) { 2947 // Invalidate the area of the cleared accessibility focus. 2948 focusNode.getBoundsInParent(mTempRect); 2949 focusHost.invalidate(mTempRect); 2950 // Clear accessibility focus in the virtual node. 2951 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2952 focusNode.getSourceNodeId()); 2953 provider.performAction(virtualNodeId, 2954 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2955 } 2956 focusNode.recycle(); 2957 } 2958 if (mAccessibilityFocusedHost != null) { 2959 // Clear accessibility focus in the view. 2960 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2961 } 2962 2963 // Set the new focus host and node. 2964 mAccessibilityFocusedHost = view; 2965 mAccessibilityFocusedVirtualView = node; 2966 2967 if (mAttachInfo.mHardwareRenderer != null) { 2968 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2969 } 2970 } 2971 2972 @Override 2973 public void requestChildFocus(View child, View focused) { 2974 if (DEBUG_INPUT_RESIZE) { 2975 Log.v(TAG, "Request child focus: focus now " + focused); 2976 } 2977 checkThread(); 2978 scheduleTraversals(); 2979 } 2980 2981 @Override 2982 public void clearChildFocus(View child) { 2983 if (DEBUG_INPUT_RESIZE) { 2984 Log.v(TAG, "Clearing child focus"); 2985 } 2986 checkThread(); 2987 scheduleTraversals(); 2988 } 2989 2990 @Override 2991 public ViewParent getParentForAccessibility() { 2992 return null; 2993 } 2994 2995 @Override 2996 public void focusableViewAvailable(View v) { 2997 checkThread(); 2998 if (mView != null) { 2999 if (!mView.hasFocus()) { 3000 v.requestFocus(); 3001 } else { 3002 // the one case where will transfer focus away from the current one 3003 // is if the current view is a view group that prefers to give focus 3004 // to its children first AND the view is a descendant of it. 3005 View focused = mView.findFocus(); 3006 if (focused instanceof ViewGroup) { 3007 ViewGroup group = (ViewGroup) focused; 3008 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3009 && isViewDescendantOf(v, focused)) { 3010 v.requestFocus(); 3011 } 3012 } 3013 } 3014 } 3015 } 3016 3017 @Override 3018 public void recomputeViewAttributes(View child) { 3019 checkThread(); 3020 if (mView == child) { 3021 mAttachInfo.mRecomputeGlobalAttributes = true; 3022 if (!mWillDrawSoon) { 3023 scheduleTraversals(); 3024 } 3025 } 3026 } 3027 3028 void dispatchDetachedFromWindow() { 3029 if (mView != null && mView.mAttachInfo != null) { 3030 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 3031 mView.dispatchDetachedFromWindow(); 3032 } 3033 3034 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 3035 mAccessibilityManager.removeAccessibilityStateChangeListener( 3036 mAccessibilityInteractionConnectionManager); 3037 mAccessibilityManager.removeHighTextContrastStateChangeListener( 3038 mHighContrastTextManager); 3039 removeSendWindowContentChangedCallback(); 3040 3041 destroyHardwareRenderer(); 3042 3043 setAccessibilityFocus(null, null); 3044 3045 mView.assignParent(null); 3046 mView = null; 3047 mAttachInfo.mRootView = null; 3048 3049 mSurface.release(); 3050 3051 if (mInputQueueCallback != null && mInputQueue != null) { 3052 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 3053 mInputQueue.dispose(); 3054 mInputQueueCallback = null; 3055 mInputQueue = null; 3056 } 3057 if (mInputEventReceiver != null) { 3058 mInputEventReceiver.dispose(); 3059 mInputEventReceiver = null; 3060 } 3061 try { 3062 mWindowSession.remove(mWindow); 3063 } catch (RemoteException e) { 3064 } 3065 3066 // Dispose the input channel after removing the window so the Window Manager 3067 // doesn't interpret the input channel being closed as an abnormal termination. 3068 if (mInputChannel != null) { 3069 mInputChannel.dispose(); 3070 mInputChannel = null; 3071 } 3072 3073 mDisplayManager.unregisterDisplayListener(mDisplayListener); 3074 3075 unscheduleTraversals(); 3076 } 3077 3078 void updateConfiguration(Configuration config, boolean force) { 3079 if (DEBUG_CONFIGURATION) Log.v(TAG, 3080 "Applying new config to window " 3081 + mWindowAttributes.getTitle() 3082 + ": " + config); 3083 3084 CompatibilityInfo ci = mDisplayAdjustments.getCompatibilityInfo(); 3085 if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) { 3086 config = new Configuration(config); 3087 ci.applyToConfiguration(mNoncompatDensity, config); 3088 } 3089 3090 synchronized (sConfigCallbacks) { 3091 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 3092 sConfigCallbacks.get(i).onConfigurationChanged(config); 3093 } 3094 } 3095 if (mView != null) { 3096 // At this point the resources have been updated to 3097 // have the most recent config, whatever that is. Use 3098 // the one in them which may be newer. 3099 config = mView.getResources().getConfiguration(); 3100 if (force || mLastConfiguration.diff(config) != 0) { 3101 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 3102 final int currentLayoutDirection = config.getLayoutDirection(); 3103 mLastConfiguration.setTo(config); 3104 if (lastLayoutDirection != currentLayoutDirection && 3105 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 3106 mView.setLayoutDirection(currentLayoutDirection); 3107 } 3108 mView.dispatchConfigurationChanged(config); 3109 } 3110 } 3111 } 3112 3113 /** 3114 * Return true if child is an ancestor of parent, (or equal to the parent). 3115 */ 3116 public static boolean isViewDescendantOf(View child, View parent) { 3117 if (child == parent) { 3118 return true; 3119 } 3120 3121 final ViewParent theParent = child.getParent(); 3122 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 3123 } 3124 3125 private final static int MSG_INVALIDATE = 1; 3126 private final static int MSG_INVALIDATE_RECT = 2; 3127 private final static int MSG_DIE = 3; 3128 private final static int MSG_RESIZED = 4; 3129 private final static int MSG_RESIZED_REPORT = 5; 3130 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 3131 private final static int MSG_DISPATCH_INPUT_EVENT = 7; 3132 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 3133 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 3134 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 3135 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 3136 private final static int MSG_CHECK_FOCUS = 13; 3137 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 3138 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 3139 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 3140 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 3141 private final static int MSG_UPDATE_CONFIGURATION = 18; 3142 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 3143 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 3144 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 3145 private final static int MSG_INVALIDATE_WORLD = 23; 3146 private final static int MSG_WINDOW_MOVED = 24; 3147 private final static int MSG_SYNTHESIZE_INPUT_EVENT = 25; 3148 private final static int MSG_DISPATCH_WINDOW_SHOWN = 26; 3149 3150 final class ViewRootHandler extends Handler { 3151 @Override 3152 public String getMessageName(Message message) { 3153 switch (message.what) { 3154 case MSG_INVALIDATE: 3155 return "MSG_INVALIDATE"; 3156 case MSG_INVALIDATE_RECT: 3157 return "MSG_INVALIDATE_RECT"; 3158 case MSG_DIE: 3159 return "MSG_DIE"; 3160 case MSG_RESIZED: 3161 return "MSG_RESIZED"; 3162 case MSG_RESIZED_REPORT: 3163 return "MSG_RESIZED_REPORT"; 3164 case MSG_WINDOW_FOCUS_CHANGED: 3165 return "MSG_WINDOW_FOCUS_CHANGED"; 3166 case MSG_DISPATCH_INPUT_EVENT: 3167 return "MSG_DISPATCH_INPUT_EVENT"; 3168 case MSG_DISPATCH_APP_VISIBILITY: 3169 return "MSG_DISPATCH_APP_VISIBILITY"; 3170 case MSG_DISPATCH_GET_NEW_SURFACE: 3171 return "MSG_DISPATCH_GET_NEW_SURFACE"; 3172 case MSG_DISPATCH_KEY_FROM_IME: 3173 return "MSG_DISPATCH_KEY_FROM_IME"; 3174 case MSG_FINISH_INPUT_CONNECTION: 3175 return "MSG_FINISH_INPUT_CONNECTION"; 3176 case MSG_CHECK_FOCUS: 3177 return "MSG_CHECK_FOCUS"; 3178 case MSG_CLOSE_SYSTEM_DIALOGS: 3179 return "MSG_CLOSE_SYSTEM_DIALOGS"; 3180 case MSG_DISPATCH_DRAG_EVENT: 3181 return "MSG_DISPATCH_DRAG_EVENT"; 3182 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 3183 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 3184 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 3185 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 3186 case MSG_UPDATE_CONFIGURATION: 3187 return "MSG_UPDATE_CONFIGURATION"; 3188 case MSG_PROCESS_INPUT_EVENTS: 3189 return "MSG_PROCESS_INPUT_EVENTS"; 3190 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3191 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3192 case MSG_DISPATCH_DONE_ANIMATING: 3193 return "MSG_DISPATCH_DONE_ANIMATING"; 3194 case MSG_WINDOW_MOVED: 3195 return "MSG_WINDOW_MOVED"; 3196 case MSG_SYNTHESIZE_INPUT_EVENT: 3197 return "MSG_SYNTHESIZE_INPUT_EVENT"; 3198 case MSG_DISPATCH_WINDOW_SHOWN: 3199 return "MSG_DISPATCH_WINDOW_SHOWN"; 3200 } 3201 return super.getMessageName(message); 3202 } 3203 3204 @Override 3205 public void handleMessage(Message msg) { 3206 switch (msg.what) { 3207 case MSG_INVALIDATE: 3208 ((View) msg.obj).invalidate(); 3209 break; 3210 case MSG_INVALIDATE_RECT: 3211 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3212 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3213 info.recycle(); 3214 break; 3215 case MSG_PROCESS_INPUT_EVENTS: 3216 mProcessInputEventsScheduled = false; 3217 doProcessInputEvents(); 3218 break; 3219 case MSG_DISPATCH_APP_VISIBILITY: 3220 handleAppVisibility(msg.arg1 != 0); 3221 break; 3222 case MSG_DISPATCH_GET_NEW_SURFACE: 3223 handleGetNewSurface(); 3224 break; 3225 case MSG_RESIZED: { 3226 // Recycled in the fall through... 3227 SomeArgs args = (SomeArgs) msg.obj; 3228 if (mWinFrame.equals(args.arg1) 3229 && mPendingOverscanInsets.equals(args.arg5) 3230 && mPendingContentInsets.equals(args.arg2) 3231 && mPendingStableInsets.equals(args.arg6) 3232 && mPendingVisibleInsets.equals(args.arg3) 3233 && args.arg4 == null) { 3234 break; 3235 } 3236 } // fall through... 3237 case MSG_RESIZED_REPORT: 3238 if (mAdded) { 3239 SomeArgs args = (SomeArgs) msg.obj; 3240 3241 Configuration config = (Configuration) args.arg4; 3242 if (config != null) { 3243 updateConfiguration(config, false); 3244 } 3245 3246 mWinFrame.set((Rect) args.arg1); 3247 mPendingOverscanInsets.set((Rect) args.arg5); 3248 mPendingContentInsets.set((Rect) args.arg2); 3249 mPendingStableInsets.set((Rect) args.arg6); 3250 mPendingVisibleInsets.set((Rect) args.arg3); 3251 3252 args.recycle(); 3253 3254 if (msg.what == MSG_RESIZED_REPORT) { 3255 mReportNextDraw = true; 3256 } 3257 3258 requestLayout(); 3259 } 3260 break; 3261 case MSG_WINDOW_MOVED: 3262 if (mAdded) { 3263 final int w = mWinFrame.width(); 3264 final int h = mWinFrame.height(); 3265 final int l = msg.arg1; 3266 final int t = msg.arg2; 3267 mWinFrame.left = l; 3268 mWinFrame.right = l + w; 3269 mWinFrame.top = t; 3270 mWinFrame.bottom = t + h; 3271 3272 requestLayout(); 3273 } 3274 break; 3275 case MSG_WINDOW_FOCUS_CHANGED: { 3276 if (mAdded) { 3277 boolean hasWindowFocus = msg.arg1 != 0; 3278 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3279 3280 profileRendering(hasWindowFocus); 3281 3282 if (hasWindowFocus) { 3283 boolean inTouchMode = msg.arg2 != 0; 3284 ensureTouchModeLocally(inTouchMode); 3285 3286 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3287 mFullRedrawNeeded = true; 3288 try { 3289 final WindowManager.LayoutParams lp = mWindowAttributes; 3290 final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null; 3291 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3292 mWidth, mHeight, mSurface, surfaceInsets); 3293 } catch (OutOfResourcesException e) { 3294 Log.e(TAG, "OutOfResourcesException locking surface", e); 3295 try { 3296 if (!mWindowSession.outOfMemory(mWindow)) { 3297 Slog.w(TAG, "No processes killed for memory; killing self"); 3298 Process.killProcess(Process.myPid()); 3299 } 3300 } catch (RemoteException ex) { 3301 } 3302 // Retry in a bit. 3303 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3304 return; 3305 } 3306 } 3307 } 3308 3309 mLastWasImTarget = WindowManager.LayoutParams 3310 .mayUseInputMethod(mWindowAttributes.flags); 3311 3312 InputMethodManager imm = InputMethodManager.peekInstance(); 3313 if (mView != null) { 3314 if (hasWindowFocus && imm != null && mLastWasImTarget && 3315 !isInLocalFocusMode()) { 3316 imm.startGettingWindowFocus(mView); 3317 } 3318 mAttachInfo.mKeyDispatchState.reset(); 3319 mView.dispatchWindowFocusChanged(hasWindowFocus); 3320 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3321 } 3322 3323 // Note: must be done after the focus change callbacks, 3324 // so all of the view state is set up correctly. 3325 if (hasWindowFocus) { 3326 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3327 imm.onWindowFocus(mView, mView.findFocus(), 3328 mWindowAttributes.softInputMode, 3329 !mHasHadWindowFocus, mWindowAttributes.flags); 3330 } 3331 // Clear the forward bit. We can just do this directly, since 3332 // the window manager doesn't care about it. 3333 mWindowAttributes.softInputMode &= 3334 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3335 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3336 .softInputMode &= 3337 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3338 mHasHadWindowFocus = true; 3339 } 3340 3341 if (mView != null && mAccessibilityManager.isEnabled()) { 3342 if (hasWindowFocus) { 3343 mView.sendAccessibilityEvent( 3344 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3345 } 3346 } 3347 } 3348 } break; 3349 case MSG_DIE: 3350 doDie(); 3351 break; 3352 case MSG_DISPATCH_INPUT_EVENT: { 3353 SomeArgs args = (SomeArgs)msg.obj; 3354 InputEvent event = (InputEvent)args.arg1; 3355 InputEventReceiver receiver = (InputEventReceiver)args.arg2; 3356 enqueueInputEvent(event, receiver, 0, true); 3357 args.recycle(); 3358 } break; 3359 case MSG_SYNTHESIZE_INPUT_EVENT: { 3360 InputEvent event = (InputEvent)msg.obj; 3361 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true); 3362 } break; 3363 case MSG_DISPATCH_KEY_FROM_IME: { 3364 if (LOCAL_LOGV) Log.v( 3365 TAG, "Dispatching key " 3366 + msg.obj + " from IME to " + mView); 3367 KeyEvent event = (KeyEvent)msg.obj; 3368 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3369 // The IME is trying to say this event is from the 3370 // system! Bad bad bad! 3371 //noinspection UnusedAssignment 3372 event = KeyEvent.changeFlags(event, event.getFlags() & 3373 ~KeyEvent.FLAG_FROM_SYSTEM); 3374 } 3375 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3376 } break; 3377 case MSG_FINISH_INPUT_CONNECTION: { 3378 InputMethodManager imm = InputMethodManager.peekInstance(); 3379 if (imm != null) { 3380 imm.reportFinishInputConnection((InputConnection)msg.obj); 3381 } 3382 } break; 3383 case MSG_CHECK_FOCUS: { 3384 InputMethodManager imm = InputMethodManager.peekInstance(); 3385 if (imm != null) { 3386 imm.checkFocus(); 3387 } 3388 } break; 3389 case MSG_CLOSE_SYSTEM_DIALOGS: { 3390 if (mView != null) { 3391 mView.onCloseSystemDialogs((String)msg.obj); 3392 } 3393 } break; 3394 case MSG_DISPATCH_DRAG_EVENT: 3395 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3396 DragEvent event = (DragEvent)msg.obj; 3397 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3398 handleDragEvent(event); 3399 } break; 3400 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3401 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3402 } break; 3403 case MSG_UPDATE_CONFIGURATION: { 3404 Configuration config = (Configuration)msg.obj; 3405 if (config.isOtherSeqNewer(mLastConfiguration)) { 3406 config = mLastConfiguration; 3407 } 3408 updateConfiguration(config, false); 3409 } break; 3410 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3411 setAccessibilityFocus(null, null); 3412 } break; 3413 case MSG_DISPATCH_DONE_ANIMATING: { 3414 handleDispatchDoneAnimating(); 3415 } break; 3416 case MSG_INVALIDATE_WORLD: { 3417 if (mView != null) { 3418 invalidateWorld(mView); 3419 } 3420 } break; 3421 case MSG_DISPATCH_WINDOW_SHOWN: { 3422 handleDispatchWindowShown(); 3423 } 3424 } 3425 } 3426 } 3427 3428 final ViewRootHandler mHandler = new ViewRootHandler(); 3429 3430 /** 3431 * Something in the current window tells us we need to change the touch mode. For 3432 * example, we are not in touch mode, and the user touches the screen. 3433 * 3434 * If the touch mode has changed, tell the window manager, and handle it locally. 3435 * 3436 * @param inTouchMode Whether we want to be in touch mode. 3437 * @return True if the touch mode changed and focus changed was changed as a result 3438 */ 3439 boolean ensureTouchMode(boolean inTouchMode) { 3440 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3441 + "touch mode is " + mAttachInfo.mInTouchMode); 3442 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3443 3444 // tell the window manager 3445 try { 3446 if (!isInLocalFocusMode()) { 3447 mWindowSession.setInTouchMode(inTouchMode); 3448 } 3449 } catch (RemoteException e) { 3450 throw new RuntimeException(e); 3451 } 3452 3453 // handle the change 3454 return ensureTouchModeLocally(inTouchMode); 3455 } 3456 3457 /** 3458 * Ensure that the touch mode for this window is set, and if it is changing, 3459 * take the appropriate action. 3460 * @param inTouchMode Whether we want to be in touch mode. 3461 * @return True if the touch mode changed and focus changed was changed as a result 3462 */ 3463 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3464 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3465 + "touch mode is " + mAttachInfo.mInTouchMode); 3466 3467 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3468 3469 mAttachInfo.mInTouchMode = inTouchMode; 3470 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3471 3472 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3473 } 3474 3475 private boolean enterTouchMode() { 3476 if (mView != null && mView.hasFocus()) { 3477 // note: not relying on mFocusedView here because this could 3478 // be when the window is first being added, and mFocused isn't 3479 // set yet. 3480 final View focused = mView.findFocus(); 3481 if (focused != null && !focused.isFocusableInTouchMode()) { 3482 final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused); 3483 if (ancestorToTakeFocus != null) { 3484 // there is an ancestor that wants focus after its 3485 // descendants that is focusable in touch mode.. give it 3486 // focus 3487 return ancestorToTakeFocus.requestFocus(); 3488 } else { 3489 // There's nothing to focus. Clear and propagate through the 3490 // hierarchy, but don't attempt to place new focus. 3491 focused.clearFocusInternal(null, true, false); 3492 return true; 3493 } 3494 } 3495 } 3496 return false; 3497 } 3498 3499 /** 3500 * Find an ancestor of focused that wants focus after its descendants and is 3501 * focusable in touch mode. 3502 * @param focused The currently focused view. 3503 * @return An appropriate view, or null if no such view exists. 3504 */ 3505 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3506 ViewParent parent = focused.getParent(); 3507 while (parent instanceof ViewGroup) { 3508 final ViewGroup vgParent = (ViewGroup) parent; 3509 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3510 && vgParent.isFocusableInTouchMode()) { 3511 return vgParent; 3512 } 3513 if (vgParent.isRootNamespace()) { 3514 return null; 3515 } else { 3516 parent = vgParent.getParent(); 3517 } 3518 } 3519 return null; 3520 } 3521 3522 private boolean leaveTouchMode() { 3523 if (mView != null) { 3524 if (mView.hasFocus()) { 3525 View focusedView = mView.findFocus(); 3526 if (!(focusedView instanceof ViewGroup)) { 3527 // some view has focus, let it keep it 3528 return false; 3529 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3530 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3531 // some view group has focus, and doesn't prefer its children 3532 // over itself for focus, so let them keep it. 3533 return false; 3534 } 3535 } 3536 3537 // find the best view to give focus to in this brave new non-touch-mode 3538 // world 3539 final View focused = focusSearch(null, View.FOCUS_DOWN); 3540 if (focused != null) { 3541 return focused.requestFocus(View.FOCUS_DOWN); 3542 } 3543 } 3544 return false; 3545 } 3546 3547 /** 3548 * Base class for implementing a stage in the chain of responsibility 3549 * for processing input events. 3550 * <p> 3551 * Events are delivered to the stage by the {@link #deliver} method. The stage 3552 * then has the choice of finishing the event or forwarding it to the next stage. 3553 * </p> 3554 */ 3555 abstract class InputStage { 3556 private final InputStage mNext; 3557 3558 protected static final int FORWARD = 0; 3559 protected static final int FINISH_HANDLED = 1; 3560 protected static final int FINISH_NOT_HANDLED = 2; 3561 3562 /** 3563 * Creates an input stage. 3564 * @param next The next stage to which events should be forwarded. 3565 */ 3566 public InputStage(InputStage next) { 3567 mNext = next; 3568 } 3569 3570 /** 3571 * Delivers an event to be processed. 3572 */ 3573 public final void deliver(QueuedInputEvent q) { 3574 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3575 forward(q); 3576 } else if (shouldDropInputEvent(q)) { 3577 finish(q, false); 3578 } else { 3579 apply(q, onProcess(q)); 3580 } 3581 } 3582 3583 /** 3584 * Marks the the input event as finished then forwards it to the next stage. 3585 */ 3586 protected void finish(QueuedInputEvent q, boolean handled) { 3587 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3588 if (handled) { 3589 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3590 } 3591 forward(q); 3592 } 3593 3594 /** 3595 * Forwards the event to the next stage. 3596 */ 3597 protected void forward(QueuedInputEvent q) { 3598 onDeliverToNext(q); 3599 } 3600 3601 /** 3602 * Applies a result code from {@link #onProcess} to the specified event. 3603 */ 3604 protected void apply(QueuedInputEvent q, int result) { 3605 if (result == FORWARD) { 3606 forward(q); 3607 } else if (result == FINISH_HANDLED) { 3608 finish(q, true); 3609 } else if (result == FINISH_NOT_HANDLED) { 3610 finish(q, false); 3611 } else { 3612 throw new IllegalArgumentException("Invalid result: " + result); 3613 } 3614 } 3615 3616 /** 3617 * Called when an event is ready to be processed. 3618 * @return A result code indicating how the event was handled. 3619 */ 3620 protected int onProcess(QueuedInputEvent q) { 3621 return FORWARD; 3622 } 3623 3624 /** 3625 * Called when an event is being delivered to the next stage. 3626 */ 3627 protected void onDeliverToNext(QueuedInputEvent q) { 3628 if (DEBUG_INPUT_STAGES) { 3629 Log.v(TAG, "Done with " + getClass().getSimpleName() + ". " + q); 3630 } 3631 if (mNext != null) { 3632 mNext.deliver(q); 3633 } else { 3634 finishInputEvent(q); 3635 } 3636 } 3637 3638 protected boolean shouldDropInputEvent(QueuedInputEvent q) { 3639 if (mView == null || !mAdded) { 3640 Slog.w(TAG, "Dropping event due to root view being removed: " + q.mEvent); 3641 return true; 3642 } else if ((!mAttachInfo.mHasWindowFocus || mStopped) 3643 && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) { 3644 // This is a focus event and the window doesn't currently have input focus or 3645 // has stopped. This could be an event that came back from the previous stage 3646 // but the window has lost focus or stopped in the meantime. 3647 if (isTerminalInputEvent(q.mEvent)) { 3648 // Don't drop terminal input events, however mark them as canceled. 3649 q.mEvent.cancel(); 3650 Slog.w(TAG, "Cancelling event due to no window focus: " + q.mEvent); 3651 return false; 3652 } 3653 3654 // Drop non-terminal input events. 3655 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 3656 return true; 3657 } 3658 return false; 3659 } 3660 3661 void dump(String prefix, PrintWriter writer) { 3662 if (mNext != null) { 3663 mNext.dump(prefix, writer); 3664 } 3665 } 3666 } 3667 3668 /** 3669 * Base class for implementing an input pipeline stage that supports 3670 * asynchronous and out-of-order processing of input events. 3671 * <p> 3672 * In addition to what a normal input stage can do, an asynchronous 3673 * input stage may also defer an input event that has been delivered to it 3674 * and finish or forward it later. 3675 * </p> 3676 */ 3677 abstract class AsyncInputStage extends InputStage { 3678 private final String mTraceCounter; 3679 3680 private QueuedInputEvent mQueueHead; 3681 private QueuedInputEvent mQueueTail; 3682 private int mQueueLength; 3683 3684 protected static final int DEFER = 3; 3685 3686 /** 3687 * Creates an asynchronous input stage. 3688 * @param next The next stage to which events should be forwarded. 3689 * @param traceCounter The name of a counter to record the size of 3690 * the queue of pending events. 3691 */ 3692 public AsyncInputStage(InputStage next, String traceCounter) { 3693 super(next); 3694 mTraceCounter = traceCounter; 3695 } 3696 3697 /** 3698 * Marks the event as deferred, which is to say that it will be handled 3699 * asynchronously. The caller is responsible for calling {@link #forward} 3700 * or {@link #finish} later when it is done handling the event. 3701 */ 3702 protected void defer(QueuedInputEvent q) { 3703 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3704 enqueue(q); 3705 } 3706 3707 @Override 3708 protected void forward(QueuedInputEvent q) { 3709 // Clear the deferred flag. 3710 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3711 3712 // Fast path if the queue is empty. 3713 QueuedInputEvent curr = mQueueHead; 3714 if (curr == null) { 3715 super.forward(q); 3716 return; 3717 } 3718 3719 // Determine whether the event must be serialized behind any others 3720 // before it can be delivered to the next stage. This is done because 3721 // deferred events might be handled out of order by the stage. 3722 final int deviceId = q.mEvent.getDeviceId(); 3723 QueuedInputEvent prev = null; 3724 boolean blocked = false; 3725 while (curr != null && curr != q) { 3726 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 3727 blocked = true; 3728 } 3729 prev = curr; 3730 curr = curr.mNext; 3731 } 3732 3733 // If the event is blocked, then leave it in the queue to be delivered later. 3734 // Note that the event might not yet be in the queue if it was not previously 3735 // deferred so we will enqueue it if needed. 3736 if (blocked) { 3737 if (curr == null) { 3738 enqueue(q); 3739 } 3740 return; 3741 } 3742 3743 // The event is not blocked. Deliver it immediately. 3744 if (curr != null) { 3745 curr = curr.mNext; 3746 dequeue(q, prev); 3747 } 3748 super.forward(q); 3749 3750 // Dequeuing this event may have unblocked successors. Deliver them. 3751 while (curr != null) { 3752 if (deviceId == curr.mEvent.getDeviceId()) { 3753 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 3754 break; 3755 } 3756 QueuedInputEvent next = curr.mNext; 3757 dequeue(curr, prev); 3758 super.forward(curr); 3759 curr = next; 3760 } else { 3761 prev = curr; 3762 curr = curr.mNext; 3763 } 3764 } 3765 } 3766 3767 @Override 3768 protected void apply(QueuedInputEvent q, int result) { 3769 if (result == DEFER) { 3770 defer(q); 3771 } else { 3772 super.apply(q, result); 3773 } 3774 } 3775 3776 private void enqueue(QueuedInputEvent q) { 3777 if (mQueueTail == null) { 3778 mQueueHead = q; 3779 mQueueTail = q; 3780 } else { 3781 mQueueTail.mNext = q; 3782 mQueueTail = q; 3783 } 3784 3785 mQueueLength += 1; 3786 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3787 } 3788 3789 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 3790 if (prev == null) { 3791 mQueueHead = q.mNext; 3792 } else { 3793 prev.mNext = q.mNext; 3794 } 3795 if (mQueueTail == q) { 3796 mQueueTail = prev; 3797 } 3798 q.mNext = null; 3799 3800 mQueueLength -= 1; 3801 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3802 } 3803 3804 @Override 3805 void dump(String prefix, PrintWriter writer) { 3806 writer.print(prefix); 3807 writer.print(getClass().getName()); 3808 writer.print(": mQueueLength="); 3809 writer.println(mQueueLength); 3810 3811 super.dump(prefix, writer); 3812 } 3813 } 3814 3815 /** 3816 * Delivers pre-ime input events to a native activity. 3817 * Does not support pointer events. 3818 */ 3819 final class NativePreImeInputStage extends AsyncInputStage 3820 implements InputQueue.FinishedInputEventCallback { 3821 public NativePreImeInputStage(InputStage next, String traceCounter) { 3822 super(next, traceCounter); 3823 } 3824 3825 @Override 3826 protected int onProcess(QueuedInputEvent q) { 3827 if (mInputQueue != null && q.mEvent instanceof KeyEvent) { 3828 mInputQueue.sendInputEvent(q.mEvent, q, true, this); 3829 return DEFER; 3830 } 3831 return FORWARD; 3832 } 3833 3834 @Override 3835 public void onFinishedInputEvent(Object token, boolean handled) { 3836 QueuedInputEvent q = (QueuedInputEvent)token; 3837 if (handled) { 3838 finish(q, true); 3839 return; 3840 } 3841 forward(q); 3842 } 3843 } 3844 3845 /** 3846 * Delivers pre-ime input events to the view hierarchy. 3847 * Does not support pointer events. 3848 */ 3849 final class ViewPreImeInputStage extends InputStage { 3850 public ViewPreImeInputStage(InputStage next) { 3851 super(next); 3852 } 3853 3854 @Override 3855 protected int onProcess(QueuedInputEvent q) { 3856 if (q.mEvent instanceof KeyEvent) { 3857 return processKeyEvent(q); 3858 } 3859 return FORWARD; 3860 } 3861 3862 private int processKeyEvent(QueuedInputEvent q) { 3863 final KeyEvent event = (KeyEvent)q.mEvent; 3864 if (mView.dispatchKeyEventPreIme(event)) { 3865 return FINISH_HANDLED; 3866 } 3867 return FORWARD; 3868 } 3869 } 3870 3871 /** 3872 * Delivers input events to the ime. 3873 * Does not support pointer events. 3874 */ 3875 final class ImeInputStage extends AsyncInputStage 3876 implements InputMethodManager.FinishedInputEventCallback { 3877 public ImeInputStage(InputStage next, String traceCounter) { 3878 super(next, traceCounter); 3879 } 3880 3881 @Override 3882 protected int onProcess(QueuedInputEvent q) { 3883 if (mLastWasImTarget && !isInLocalFocusMode()) { 3884 InputMethodManager imm = InputMethodManager.peekInstance(); 3885 if (imm != null) { 3886 final InputEvent event = q.mEvent; 3887 if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event); 3888 int result = imm.dispatchInputEvent(event, q, this, mHandler); 3889 if (result == InputMethodManager.DISPATCH_HANDLED) { 3890 return FINISH_HANDLED; 3891 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 3892 // The IME could not handle it, so skip along to the next InputStage 3893 return FORWARD; 3894 } else { 3895 return DEFER; // callback will be invoked later 3896 } 3897 } 3898 } 3899 return FORWARD; 3900 } 3901 3902 @Override 3903 public void onFinishedInputEvent(Object token, boolean handled) { 3904 QueuedInputEvent q = (QueuedInputEvent)token; 3905 if (handled) { 3906 finish(q, true); 3907 return; 3908 } 3909 forward(q); 3910 } 3911 } 3912 3913 /** 3914 * Performs early processing of post-ime input events. 3915 */ 3916 final class EarlyPostImeInputStage extends InputStage { 3917 public EarlyPostImeInputStage(InputStage next) { 3918 super(next); 3919 } 3920 3921 @Override 3922 protected int onProcess(QueuedInputEvent q) { 3923 if (q.mEvent instanceof KeyEvent) { 3924 return processKeyEvent(q); 3925 } else { 3926 final int source = q.mEvent.getSource(); 3927 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3928 return processPointerEvent(q); 3929 } 3930 } 3931 return FORWARD; 3932 } 3933 3934 private int processKeyEvent(QueuedInputEvent q) { 3935 final KeyEvent event = (KeyEvent)q.mEvent; 3936 3937 // If the key's purpose is to exit touch mode then we consume it 3938 // and consider it handled. 3939 if (checkForLeavingTouchModeAndConsume(event)) { 3940 return FINISH_HANDLED; 3941 } 3942 3943 // Make sure the fallback event policy sees all keys that will be 3944 // delivered to the view hierarchy. 3945 mFallbackEventHandler.preDispatchKeyEvent(event); 3946 return FORWARD; 3947 } 3948 3949 private int processPointerEvent(QueuedInputEvent q) { 3950 final MotionEvent event = (MotionEvent)q.mEvent; 3951 3952 // Translate the pointer event for compatibility, if needed. 3953 if (mTranslator != null) { 3954 mTranslator.translateEventInScreenToAppWindow(event); 3955 } 3956 3957 // Enter touch mode on down or scroll. 3958 final int action = event.getAction(); 3959 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3960 ensureTouchMode(true); 3961 } 3962 3963 // Offset the scroll position. 3964 if (mCurScrollY != 0) { 3965 event.offsetLocation(0, mCurScrollY); 3966 } 3967 3968 // Remember the touch position for possible drag-initiation. 3969 if (event.isTouchEvent()) { 3970 mLastTouchPoint.x = event.getRawX(); 3971 mLastTouchPoint.y = event.getRawY(); 3972 } 3973 return FORWARD; 3974 } 3975 } 3976 3977 /** 3978 * Delivers post-ime input events to a native activity. 3979 */ 3980 final class NativePostImeInputStage extends AsyncInputStage 3981 implements InputQueue.FinishedInputEventCallback { 3982 public NativePostImeInputStage(InputStage next, String traceCounter) { 3983 super(next, traceCounter); 3984 } 3985 3986 @Override 3987 protected int onProcess(QueuedInputEvent q) { 3988 if (mInputQueue != null) { 3989 mInputQueue.sendInputEvent(q.mEvent, q, false, this); 3990 return DEFER; 3991 } 3992 return FORWARD; 3993 } 3994 3995 @Override 3996 public void onFinishedInputEvent(Object token, boolean handled) { 3997 QueuedInputEvent q = (QueuedInputEvent)token; 3998 if (handled) { 3999 finish(q, true); 4000 return; 4001 } 4002 forward(q); 4003 } 4004 } 4005 4006 /** 4007 * Delivers post-ime input events to the view hierarchy. 4008 */ 4009 final class ViewPostImeInputStage extends InputStage { 4010 public ViewPostImeInputStage(InputStage next) { 4011 super(next); 4012 } 4013 4014 @Override 4015 protected int onProcess(QueuedInputEvent q) { 4016 if (q.mEvent instanceof KeyEvent) { 4017 return processKeyEvent(q); 4018 } else { 4019 // If delivering a new non-key event, make sure the window is 4020 // now allowed to start updating. 4021 handleDispatchDoneAnimating(); 4022 final int source = q.mEvent.getSource(); 4023 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 4024 return processPointerEvent(q); 4025 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4026 return processTrackballEvent(q); 4027 } else { 4028 return processGenericMotionEvent(q); 4029 } 4030 } 4031 } 4032 4033 @Override 4034 protected void onDeliverToNext(QueuedInputEvent q) { 4035 if (mUnbufferedInputDispatch 4036 && q.mEvent instanceof MotionEvent 4037 && ((MotionEvent)q.mEvent).isTouchEvent() 4038 && isTerminalInputEvent(q.mEvent)) { 4039 mUnbufferedInputDispatch = false; 4040 scheduleConsumeBatchedInput(); 4041 } 4042 super.onDeliverToNext(q); 4043 } 4044 4045 private int processKeyEvent(QueuedInputEvent q) { 4046 final KeyEvent event = (KeyEvent)q.mEvent; 4047 4048 if (event.getAction() != KeyEvent.ACTION_UP) { 4049 // If delivering a new key event, make sure the window is 4050 // now allowed to start updating. 4051 handleDispatchDoneAnimating(); 4052 } 4053 4054 // Deliver the key to the view hierarchy. 4055 if (mView.dispatchKeyEvent(event)) { 4056 return FINISH_HANDLED; 4057 } 4058 4059 if (shouldDropInputEvent(q)) { 4060 return FINISH_NOT_HANDLED; 4061 } 4062 4063 // If the Control modifier is held, try to interpret the key as a shortcut. 4064 if (event.getAction() == KeyEvent.ACTION_DOWN 4065 && event.isCtrlPressed() 4066 && event.getRepeatCount() == 0 4067 && !KeyEvent.isModifierKey(event.getKeyCode())) { 4068 if (mView.dispatchKeyShortcutEvent(event)) { 4069 return FINISH_HANDLED; 4070 } 4071 if (shouldDropInputEvent(q)) { 4072 return FINISH_NOT_HANDLED; 4073 } 4074 } 4075 4076 // Apply the fallback event policy. 4077 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 4078 return FINISH_HANDLED; 4079 } 4080 if (shouldDropInputEvent(q)) { 4081 return FINISH_NOT_HANDLED; 4082 } 4083 4084 // Handle automatic focus changes. 4085 if (event.getAction() == KeyEvent.ACTION_DOWN) { 4086 int direction = 0; 4087 switch (event.getKeyCode()) { 4088 case KeyEvent.KEYCODE_DPAD_LEFT: 4089 if (event.hasNoModifiers()) { 4090 direction = View.FOCUS_LEFT; 4091 } 4092 break; 4093 case KeyEvent.KEYCODE_DPAD_RIGHT: 4094 if (event.hasNoModifiers()) { 4095 direction = View.FOCUS_RIGHT; 4096 } 4097 break; 4098 case KeyEvent.KEYCODE_DPAD_UP: 4099 if (event.hasNoModifiers()) { 4100 direction = View.FOCUS_UP; 4101 } 4102 break; 4103 case KeyEvent.KEYCODE_DPAD_DOWN: 4104 if (event.hasNoModifiers()) { 4105 direction = View.FOCUS_DOWN; 4106 } 4107 break; 4108 case KeyEvent.KEYCODE_TAB: 4109 if (event.hasNoModifiers()) { 4110 direction = View.FOCUS_FORWARD; 4111 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4112 direction = View.FOCUS_BACKWARD; 4113 } 4114 break; 4115 } 4116 if (direction != 0) { 4117 View focused = mView.findFocus(); 4118 if (focused != null) { 4119 View v = focused.focusSearch(direction); 4120 if (v != null && v != focused) { 4121 // do the math the get the interesting rect 4122 // of previous focused into the coord system of 4123 // newly focused view 4124 focused.getFocusedRect(mTempRect); 4125 if (mView instanceof ViewGroup) { 4126 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 4127 focused, mTempRect); 4128 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 4129 v, mTempRect); 4130 } 4131 if (v.requestFocus(direction, mTempRect)) { 4132 playSoundEffect(SoundEffectConstants 4133 .getContantForFocusDirection(direction)); 4134 return FINISH_HANDLED; 4135 } 4136 } 4137 4138 // Give the focused view a last chance to handle the dpad key. 4139 if (mView.dispatchUnhandledMove(focused, direction)) { 4140 return FINISH_HANDLED; 4141 } 4142 } else { 4143 // find the best view to give focus to in this non-touch-mode with no-focus 4144 View v = focusSearch(null, direction); 4145 if (v != null && v.requestFocus(direction)) { 4146 return FINISH_HANDLED; 4147 } 4148 } 4149 } 4150 } 4151 return FORWARD; 4152 } 4153 4154 private int processPointerEvent(QueuedInputEvent q) { 4155 final MotionEvent event = (MotionEvent)q.mEvent; 4156 4157 mAttachInfo.mUnbufferedDispatchRequested = false; 4158 boolean handled = mView.dispatchPointerEvent(event); 4159 if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) { 4160 mUnbufferedInputDispatch = true; 4161 if (mConsumeBatchedInputScheduled) { 4162 scheduleConsumeBatchedInputImmediately(); 4163 } 4164 } 4165 return handled ? FINISH_HANDLED : FORWARD; 4166 } 4167 4168 private int processTrackballEvent(QueuedInputEvent q) { 4169 final MotionEvent event = (MotionEvent)q.mEvent; 4170 4171 if (mView.dispatchTrackballEvent(event)) { 4172 return FINISH_HANDLED; 4173 } 4174 return FORWARD; 4175 } 4176 4177 private int processGenericMotionEvent(QueuedInputEvent q) { 4178 final MotionEvent event = (MotionEvent)q.mEvent; 4179 4180 // Deliver the event to the view. 4181 if (mView.dispatchGenericMotionEvent(event)) { 4182 return FINISH_HANDLED; 4183 } 4184 return FORWARD; 4185 } 4186 } 4187 4188 /** 4189 * Performs synthesis of new input events from unhandled input events. 4190 */ 4191 final class SyntheticInputStage extends InputStage { 4192 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 4193 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 4194 private final SyntheticTouchNavigationHandler mTouchNavigation = 4195 new SyntheticTouchNavigationHandler(); 4196 private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler(); 4197 4198 public SyntheticInputStage() { 4199 super(null); 4200 } 4201 4202 @Override 4203 protected int onProcess(QueuedInputEvent q) { 4204 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 4205 if (q.mEvent instanceof MotionEvent) { 4206 final MotionEvent event = (MotionEvent)q.mEvent; 4207 final int source = event.getSource(); 4208 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4209 mTrackball.process(event); 4210 return FINISH_HANDLED; 4211 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4212 mJoystick.process(event); 4213 return FINISH_HANDLED; 4214 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4215 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4216 mTouchNavigation.process(event); 4217 return FINISH_HANDLED; 4218 } 4219 } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) { 4220 mKeyboard.process((KeyEvent)q.mEvent); 4221 return FINISH_HANDLED; 4222 } 4223 4224 return FORWARD; 4225 } 4226 4227 @Override 4228 protected void onDeliverToNext(QueuedInputEvent q) { 4229 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 4230 // Cancel related synthetic events if any prior stage has handled the event. 4231 if (q.mEvent instanceof MotionEvent) { 4232 final MotionEvent event = (MotionEvent)q.mEvent; 4233 final int source = event.getSource(); 4234 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4235 mTrackball.cancel(event); 4236 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4237 mJoystick.cancel(event); 4238 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4239 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4240 mTouchNavigation.cancel(event); 4241 } 4242 } 4243 } 4244 super.onDeliverToNext(q); 4245 } 4246 } 4247 4248 /** 4249 * Creates dpad events from unhandled trackball movements. 4250 */ 4251 final class SyntheticTrackballHandler { 4252 private final TrackballAxis mX = new TrackballAxis(); 4253 private final TrackballAxis mY = new TrackballAxis(); 4254 private long mLastTime; 4255 4256 public void process(MotionEvent event) { 4257 // Translate the trackball event into DPAD keys and try to deliver those. 4258 long curTime = SystemClock.uptimeMillis(); 4259 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 4260 // It has been too long since the last movement, 4261 // so restart at the beginning. 4262 mX.reset(0); 4263 mY.reset(0); 4264 mLastTime = curTime; 4265 } 4266 4267 final int action = event.getAction(); 4268 final int metaState = event.getMetaState(); 4269 switch (action) { 4270 case MotionEvent.ACTION_DOWN: 4271 mX.reset(2); 4272 mY.reset(2); 4273 enqueueInputEvent(new KeyEvent(curTime, curTime, 4274 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4275 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4276 InputDevice.SOURCE_KEYBOARD)); 4277 break; 4278 case MotionEvent.ACTION_UP: 4279 mX.reset(2); 4280 mY.reset(2); 4281 enqueueInputEvent(new KeyEvent(curTime, curTime, 4282 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4283 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4284 InputDevice.SOURCE_KEYBOARD)); 4285 break; 4286 } 4287 4288 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step=" 4289 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 4290 + " move=" + event.getX() 4291 + " / Y=" + mY.position + " step=" 4292 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 4293 + " move=" + event.getY()); 4294 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 4295 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 4296 4297 // Generate DPAD events based on the trackball movement. 4298 // We pick the axis that has moved the most as the direction of 4299 // the DPAD. When we generate DPAD events for one axis, then the 4300 // other axis is reset -- we don't want to perform DPAD jumps due 4301 // to slight movements in the trackball when making major movements 4302 // along the other axis. 4303 int keycode = 0; 4304 int movement = 0; 4305 float accel = 1; 4306 if (xOff > yOff) { 4307 movement = mX.generate(); 4308 if (movement != 0) { 4309 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 4310 : KeyEvent.KEYCODE_DPAD_LEFT; 4311 accel = mX.acceleration; 4312 mY.reset(2); 4313 } 4314 } else if (yOff > 0) { 4315 movement = mY.generate(); 4316 if (movement != 0) { 4317 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 4318 : KeyEvent.KEYCODE_DPAD_UP; 4319 accel = mY.acceleration; 4320 mX.reset(2); 4321 } 4322 } 4323 4324 if (keycode != 0) { 4325 if (movement < 0) movement = -movement; 4326 int accelMovement = (int)(movement * accel); 4327 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 4328 + " accelMovement=" + accelMovement 4329 + " accel=" + accel); 4330 if (accelMovement > movement) { 4331 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4332 + keycode); 4333 movement--; 4334 int repeatCount = accelMovement - movement; 4335 enqueueInputEvent(new KeyEvent(curTime, curTime, 4336 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4337 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4338 InputDevice.SOURCE_KEYBOARD)); 4339 } 4340 while (movement > 0) { 4341 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4342 + keycode); 4343 movement--; 4344 curTime = SystemClock.uptimeMillis(); 4345 enqueueInputEvent(new KeyEvent(curTime, curTime, 4346 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4347 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4348 InputDevice.SOURCE_KEYBOARD)); 4349 enqueueInputEvent(new KeyEvent(curTime, curTime, 4350 KeyEvent.ACTION_UP, keycode, 0, metaState, 4351 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4352 InputDevice.SOURCE_KEYBOARD)); 4353 } 4354 mLastTime = curTime; 4355 } 4356 } 4357 4358 public void cancel(MotionEvent event) { 4359 mLastTime = Integer.MIN_VALUE; 4360 4361 // If we reach this, we consumed a trackball event. 4362 // Because we will not translate the trackball event into a key event, 4363 // touch mode will not exit, so we exit touch mode here. 4364 if (mView != null && mAdded) { 4365 ensureTouchMode(false); 4366 } 4367 } 4368 } 4369 4370 /** 4371 * Maintains state information for a single trackball axis, generating 4372 * discrete (DPAD) movements based on raw trackball motion. 4373 */ 4374 static final class TrackballAxis { 4375 /** 4376 * The maximum amount of acceleration we will apply. 4377 */ 4378 static final float MAX_ACCELERATION = 20; 4379 4380 /** 4381 * The maximum amount of time (in milliseconds) between events in order 4382 * for us to consider the user to be doing fast trackball movements, 4383 * and thus apply an acceleration. 4384 */ 4385 static final long FAST_MOVE_TIME = 150; 4386 4387 /** 4388 * Scaling factor to the time (in milliseconds) between events to how 4389 * much to multiple/divide the current acceleration. When movement 4390 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4391 * FAST_MOVE_TIME it divides it. 4392 */ 4393 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4394 4395 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4396 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4397 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4398 4399 float position; 4400 float acceleration = 1; 4401 long lastMoveTime = 0; 4402 int step; 4403 int dir; 4404 int nonAccelMovement; 4405 4406 void reset(int _step) { 4407 position = 0; 4408 acceleration = 1; 4409 lastMoveTime = 0; 4410 step = _step; 4411 dir = 0; 4412 } 4413 4414 /** 4415 * Add trackball movement into the state. If the direction of movement 4416 * has been reversed, the state is reset before adding the 4417 * movement (so that you don't have to compensate for any previously 4418 * collected movement before see the result of the movement in the 4419 * new direction). 4420 * 4421 * @return Returns the absolute value of the amount of movement 4422 * collected so far. 4423 */ 4424 float collect(float off, long time, String axis) { 4425 long normTime; 4426 if (off > 0) { 4427 normTime = (long)(off * FAST_MOVE_TIME); 4428 if (dir < 0) { 4429 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4430 position = 0; 4431 step = 0; 4432 acceleration = 1; 4433 lastMoveTime = 0; 4434 } 4435 dir = 1; 4436 } else if (off < 0) { 4437 normTime = (long)((-off) * FAST_MOVE_TIME); 4438 if (dir > 0) { 4439 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4440 position = 0; 4441 step = 0; 4442 acceleration = 1; 4443 lastMoveTime = 0; 4444 } 4445 dir = -1; 4446 } else { 4447 normTime = 0; 4448 } 4449 4450 // The number of milliseconds between each movement that is 4451 // considered "normal" and will not result in any acceleration 4452 // or deceleration, scaled by the offset we have here. 4453 if (normTime > 0) { 4454 long delta = time - lastMoveTime; 4455 lastMoveTime = time; 4456 float acc = acceleration; 4457 if (delta < normTime) { 4458 // The user is scrolling rapidly, so increase acceleration. 4459 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4460 if (scale > 1) acc *= scale; 4461 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4462 + off + " normTime=" + normTime + " delta=" + delta 4463 + " scale=" + scale + " acc=" + acc); 4464 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4465 } else { 4466 // The user is scrolling slowly, so decrease acceleration. 4467 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4468 if (scale > 1) acc /= scale; 4469 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4470 + off + " normTime=" + normTime + " delta=" + delta 4471 + " scale=" + scale + " acc=" + acc); 4472 acceleration = acc > 1 ? acc : 1; 4473 } 4474 } 4475 position += off; 4476 return Math.abs(position); 4477 } 4478 4479 /** 4480 * Generate the number of discrete movement events appropriate for 4481 * the currently collected trackball movement. 4482 * 4483 * @return Returns the number of discrete movements, either positive 4484 * or negative, or 0 if there is not enough trackball movement yet 4485 * for a discrete movement. 4486 */ 4487 int generate() { 4488 int movement = 0; 4489 nonAccelMovement = 0; 4490 do { 4491 final int dir = position >= 0 ? 1 : -1; 4492 switch (step) { 4493 // If we are going to execute the first step, then we want 4494 // to do this as soon as possible instead of waiting for 4495 // a full movement, in order to make things look responsive. 4496 case 0: 4497 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4498 return movement; 4499 } 4500 movement += dir; 4501 nonAccelMovement += dir; 4502 step = 1; 4503 break; 4504 // If we have generated the first movement, then we need 4505 // to wait for the second complete trackball motion before 4506 // generating the second discrete movement. 4507 case 1: 4508 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4509 return movement; 4510 } 4511 movement += dir; 4512 nonAccelMovement += dir; 4513 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4514 step = 2; 4515 break; 4516 // After the first two, we generate discrete movements 4517 // consistently with the trackball, applying an acceleration 4518 // if the trackball is moving quickly. This is a simple 4519 // acceleration on top of what we already compute based 4520 // on how quickly the wheel is being turned, to apply 4521 // a longer increasing acceleration to continuous movement 4522 // in one direction. 4523 default: 4524 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4525 return movement; 4526 } 4527 movement += dir; 4528 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4529 float acc = acceleration; 4530 acc *= 1.1f; 4531 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4532 break; 4533 } 4534 } while (true); 4535 } 4536 } 4537 4538 /** 4539 * Creates dpad events from unhandled joystick movements. 4540 */ 4541 final class SyntheticJoystickHandler extends Handler { 4542 private final static String TAG = "SyntheticJoystickHandler"; 4543 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4544 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4545 4546 private int mLastXDirection; 4547 private int mLastYDirection; 4548 private int mLastXKeyCode; 4549 private int mLastYKeyCode; 4550 4551 public SyntheticJoystickHandler() { 4552 super(true); 4553 } 4554 4555 @Override 4556 public void handleMessage(Message msg) { 4557 switch (msg.what) { 4558 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4559 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4560 KeyEvent oldEvent = (KeyEvent)msg.obj; 4561 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4562 SystemClock.uptimeMillis(), 4563 oldEvent.getRepeatCount() + 1); 4564 if (mAttachInfo.mHasWindowFocus) { 4565 enqueueInputEvent(e); 4566 Message m = obtainMessage(msg.what, e); 4567 m.setAsynchronous(true); 4568 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4569 } 4570 } break; 4571 } 4572 } 4573 4574 public void process(MotionEvent event) { 4575 switch(event.getActionMasked()) { 4576 case MotionEvent.ACTION_CANCEL: 4577 cancel(event); 4578 break; 4579 case MotionEvent.ACTION_MOVE: 4580 update(event, true); 4581 break; 4582 default: 4583 Log.w(TAG, "Unexpected action: " + event.getActionMasked()); 4584 } 4585 } 4586 4587 private void cancel(MotionEvent event) { 4588 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4589 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4590 update(event, false); 4591 } 4592 4593 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4594 final long time = event.getEventTime(); 4595 final int metaState = event.getMetaState(); 4596 final int deviceId = event.getDeviceId(); 4597 final int source = event.getSource(); 4598 4599 int xDirection = joystickAxisValueToDirection( 4600 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4601 if (xDirection == 0) { 4602 xDirection = joystickAxisValueToDirection(event.getX()); 4603 } 4604 4605 int yDirection = joystickAxisValueToDirection( 4606 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4607 if (yDirection == 0) { 4608 yDirection = joystickAxisValueToDirection(event.getY()); 4609 } 4610 4611 if (xDirection != mLastXDirection) { 4612 if (mLastXKeyCode != 0) { 4613 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4614 enqueueInputEvent(new KeyEvent(time, time, 4615 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4616 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4617 mLastXKeyCode = 0; 4618 } 4619 4620 mLastXDirection = xDirection; 4621 4622 if (xDirection != 0 && synthesizeNewKeys) { 4623 mLastXKeyCode = xDirection > 0 4624 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4625 final KeyEvent e = new KeyEvent(time, time, 4626 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4627 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4628 enqueueInputEvent(e); 4629 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4630 m.setAsynchronous(true); 4631 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4632 } 4633 } 4634 4635 if (yDirection != mLastYDirection) { 4636 if (mLastYKeyCode != 0) { 4637 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4638 enqueueInputEvent(new KeyEvent(time, time, 4639 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4640 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4641 mLastYKeyCode = 0; 4642 } 4643 4644 mLastYDirection = yDirection; 4645 4646 if (yDirection != 0 && synthesizeNewKeys) { 4647 mLastYKeyCode = yDirection > 0 4648 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4649 final KeyEvent e = new KeyEvent(time, time, 4650 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4651 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4652 enqueueInputEvent(e); 4653 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4654 m.setAsynchronous(true); 4655 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4656 } 4657 } 4658 } 4659 4660 private int joystickAxisValueToDirection(float value) { 4661 if (value >= 0.5f) { 4662 return 1; 4663 } else if (value <= -0.5f) { 4664 return -1; 4665 } else { 4666 return 0; 4667 } 4668 } 4669 } 4670 4671 /** 4672 * Creates dpad events from unhandled touch navigation movements. 4673 */ 4674 final class SyntheticTouchNavigationHandler extends Handler { 4675 private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 4676 private static final boolean LOCAL_DEBUG = false; 4677 4678 // Assumed nominal width and height in millimeters of a touch navigation pad, 4679 // if no resolution information is available from the input system. 4680 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 4681 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 4682 4683 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 4684 4685 // The nominal distance traveled to move by one unit. 4686 private static final int TICK_DISTANCE_MILLIMETERS = 12; 4687 4688 // Minimum and maximum fling velocity in ticks per second. 4689 // The minimum velocity should be set such that we perform enough ticks per 4690 // second that the fling appears to be fluid. For example, if we set the minimum 4691 // to 2 ticks per second, then there may be up to half a second delay between the next 4692 // to last and last ticks which is noticeably discrete and jerky. This value should 4693 // probably not be set to anything less than about 4. 4694 // If fling accuracy is a problem then consider tuning the tick distance instead. 4695 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 4696 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 4697 4698 // Fling velocity decay factor applied after each new key is emitted. 4699 // This parameter controls the deceleration and overall duration of the fling. 4700 // The fling stops automatically when its velocity drops below the minimum 4701 // fling velocity defined above. 4702 private static final float FLING_TICK_DECAY = 0.8f; 4703 4704 /* The input device that we are tracking. */ 4705 4706 private int mCurrentDeviceId = -1; 4707 private int mCurrentSource; 4708 private boolean mCurrentDeviceSupported; 4709 4710 /* Configuration for the current input device. */ 4711 4712 // The scaled tick distance. A movement of this amount should generally translate 4713 // into a single dpad event in a given direction. 4714 private float mConfigTickDistance; 4715 4716 // The minimum and maximum scaled fling velocity. 4717 private float mConfigMinFlingVelocity; 4718 private float mConfigMaxFlingVelocity; 4719 4720 /* Tracking state. */ 4721 4722 // The velocity tracker for detecting flings. 4723 private VelocityTracker mVelocityTracker; 4724 4725 // The active pointer id, or -1 if none. 4726 private int mActivePointerId = -1; 4727 4728 // Location where tracking started. 4729 private float mStartX; 4730 private float mStartY; 4731 4732 // Most recently observed position. 4733 private float mLastX; 4734 private float mLastY; 4735 4736 // Accumulated movement delta since the last direction key was sent. 4737 private float mAccumulatedX; 4738 private float mAccumulatedY; 4739 4740 // Set to true if any movement was delivered to the app. 4741 // Implies that tap slop was exceeded. 4742 private boolean mConsumedMovement; 4743 4744 // The most recently sent key down event. 4745 // The keycode remains set until the direction changes or a fling ends 4746 // so that repeated key events may be generated as required. 4747 private long mPendingKeyDownTime; 4748 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4749 private int mPendingKeyRepeatCount; 4750 private int mPendingKeyMetaState; 4751 4752 // The current fling velocity while a fling is in progress. 4753 private boolean mFlinging; 4754 private float mFlingVelocity; 4755 4756 public SyntheticTouchNavigationHandler() { 4757 super(true); 4758 } 4759 4760 public void process(MotionEvent event) { 4761 // Update the current device information. 4762 final long time = event.getEventTime(); 4763 final int deviceId = event.getDeviceId(); 4764 final int source = event.getSource(); 4765 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 4766 finishKeys(time); 4767 finishTracking(time); 4768 mCurrentDeviceId = deviceId; 4769 mCurrentSource = source; 4770 mCurrentDeviceSupported = false; 4771 InputDevice device = event.getDevice(); 4772 if (device != null) { 4773 // In order to support an input device, we must know certain 4774 // characteristics about it, such as its size and resolution. 4775 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 4776 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 4777 if (xRange != null && yRange != null) { 4778 mCurrentDeviceSupported = true; 4779 4780 // Infer the resolution if it not actually known. 4781 float xRes = xRange.getResolution(); 4782 if (xRes <= 0) { 4783 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 4784 } 4785 float yRes = yRange.getResolution(); 4786 if (yRes <= 0) { 4787 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 4788 } 4789 float nominalRes = (xRes + yRes) * 0.5f; 4790 4791 // Precompute all of the configuration thresholds we will need. 4792 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 4793 mConfigMinFlingVelocity = 4794 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4795 mConfigMaxFlingVelocity = 4796 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4797 4798 if (LOCAL_DEBUG) { 4799 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 4800 + " (" + Integer.toHexString(mCurrentSource) + "): " 4801 + ", mConfigTickDistance=" + mConfigTickDistance 4802 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 4803 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 4804 } 4805 } 4806 } 4807 } 4808 if (!mCurrentDeviceSupported) { 4809 return; 4810 } 4811 4812 // Handle the event. 4813 final int action = event.getActionMasked(); 4814 switch (action) { 4815 case MotionEvent.ACTION_DOWN: { 4816 boolean caughtFling = mFlinging; 4817 finishKeys(time); 4818 finishTracking(time); 4819 mActivePointerId = event.getPointerId(0); 4820 mVelocityTracker = VelocityTracker.obtain(); 4821 mVelocityTracker.addMovement(event); 4822 mStartX = event.getX(); 4823 mStartY = event.getY(); 4824 mLastX = mStartX; 4825 mLastY = mStartY; 4826 mAccumulatedX = 0; 4827 mAccumulatedY = 0; 4828 4829 // If we caught a fling, then pretend that the tap slop has already 4830 // been exceeded to suppress taps whose only purpose is to stop the fling. 4831 mConsumedMovement = caughtFling; 4832 break; 4833 } 4834 4835 case MotionEvent.ACTION_MOVE: 4836 case MotionEvent.ACTION_UP: { 4837 if (mActivePointerId < 0) { 4838 break; 4839 } 4840 final int index = event.findPointerIndex(mActivePointerId); 4841 if (index < 0) { 4842 finishKeys(time); 4843 finishTracking(time); 4844 break; 4845 } 4846 4847 mVelocityTracker.addMovement(event); 4848 final float x = event.getX(index); 4849 final float y = event.getY(index); 4850 mAccumulatedX += x - mLastX; 4851 mAccumulatedY += y - mLastY; 4852 mLastX = x; 4853 mLastY = y; 4854 4855 // Consume any accumulated movement so far. 4856 final int metaState = event.getMetaState(); 4857 consumeAccumulatedMovement(time, metaState); 4858 4859 // Detect taps and flings. 4860 if (action == MotionEvent.ACTION_UP) { 4861 if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4862 // It might be a fling. 4863 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 4864 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 4865 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 4866 if (!startFling(time, vx, vy)) { 4867 finishKeys(time); 4868 } 4869 } 4870 finishTracking(time); 4871 } 4872 break; 4873 } 4874 4875 case MotionEvent.ACTION_CANCEL: { 4876 finishKeys(time); 4877 finishTracking(time); 4878 break; 4879 } 4880 } 4881 } 4882 4883 public void cancel(MotionEvent event) { 4884 if (mCurrentDeviceId == event.getDeviceId() 4885 && mCurrentSource == event.getSource()) { 4886 final long time = event.getEventTime(); 4887 finishKeys(time); 4888 finishTracking(time); 4889 } 4890 } 4891 4892 private void finishKeys(long time) { 4893 cancelFling(); 4894 sendKeyUp(time); 4895 } 4896 4897 private void finishTracking(long time) { 4898 if (mActivePointerId >= 0) { 4899 mActivePointerId = -1; 4900 mVelocityTracker.recycle(); 4901 mVelocityTracker = null; 4902 } 4903 } 4904 4905 private void consumeAccumulatedMovement(long time, int metaState) { 4906 final float absX = Math.abs(mAccumulatedX); 4907 final float absY = Math.abs(mAccumulatedY); 4908 if (absX >= absY) { 4909 if (absX >= mConfigTickDistance) { 4910 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 4911 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 4912 mAccumulatedY = 0; 4913 mConsumedMovement = true; 4914 } 4915 } else { 4916 if (absY >= mConfigTickDistance) { 4917 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 4918 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 4919 mAccumulatedX = 0; 4920 mConsumedMovement = true; 4921 } 4922 } 4923 } 4924 4925 private float consumeAccumulatedMovement(long time, int metaState, 4926 float accumulator, int negativeKeyCode, int positiveKeyCode) { 4927 while (accumulator <= -mConfigTickDistance) { 4928 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 4929 accumulator += mConfigTickDistance; 4930 } 4931 while (accumulator >= mConfigTickDistance) { 4932 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 4933 accumulator -= mConfigTickDistance; 4934 } 4935 return accumulator; 4936 } 4937 4938 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 4939 if (mPendingKeyCode != keyCode) { 4940 sendKeyUp(time); 4941 mPendingKeyDownTime = time; 4942 mPendingKeyCode = keyCode; 4943 mPendingKeyRepeatCount = 0; 4944 } else { 4945 mPendingKeyRepeatCount += 1; 4946 } 4947 mPendingKeyMetaState = metaState; 4948 4949 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 4950 // but it doesn't quite make sense when simulating the events in this way. 4951 if (LOCAL_DEBUG) { 4952 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 4953 + ", repeatCount=" + mPendingKeyRepeatCount 4954 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4955 } 4956 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4957 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 4958 mPendingKeyMetaState, mCurrentDeviceId, 4959 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 4960 } 4961 4962 private void sendKeyUp(long time) { 4963 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4964 if (LOCAL_DEBUG) { 4965 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 4966 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4967 } 4968 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4969 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 4970 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 4971 mCurrentSource)); 4972 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4973 } 4974 } 4975 4976 private boolean startFling(long time, float vx, float vy) { 4977 if (LOCAL_DEBUG) { 4978 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 4979 + ", min=" + mConfigMinFlingVelocity); 4980 } 4981 4982 // Flings must be oriented in the same direction as the preceding movements. 4983 switch (mPendingKeyCode) { 4984 case KeyEvent.KEYCODE_DPAD_LEFT: 4985 if (-vx >= mConfigMinFlingVelocity 4986 && Math.abs(vy) < mConfigMinFlingVelocity) { 4987 mFlingVelocity = -vx; 4988 break; 4989 } 4990 return false; 4991 4992 case KeyEvent.KEYCODE_DPAD_RIGHT: 4993 if (vx >= mConfigMinFlingVelocity 4994 && Math.abs(vy) < mConfigMinFlingVelocity) { 4995 mFlingVelocity = vx; 4996 break; 4997 } 4998 return false; 4999 5000 case KeyEvent.KEYCODE_DPAD_UP: 5001 if (-vy >= mConfigMinFlingVelocity 5002 && Math.abs(vx) < mConfigMinFlingVelocity) { 5003 mFlingVelocity = -vy; 5004 break; 5005 } 5006 return false; 5007 5008 case KeyEvent.KEYCODE_DPAD_DOWN: 5009 if (vy >= mConfigMinFlingVelocity 5010 && Math.abs(vx) < mConfigMinFlingVelocity) { 5011 mFlingVelocity = vy; 5012 break; 5013 } 5014 return false; 5015 } 5016 5017 // Post the first fling event. 5018 mFlinging = postFling(time); 5019 return mFlinging; 5020 } 5021 5022 private boolean postFling(long time) { 5023 // The idea here is to estimate the time when the pointer would have 5024 // traveled one tick distance unit given the current fling velocity. 5025 // This effect creates continuity of motion. 5026 if (mFlingVelocity >= mConfigMinFlingVelocity) { 5027 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 5028 postAtTime(mFlingRunnable, time + delay); 5029 if (LOCAL_DEBUG) { 5030 Log.d(LOCAL_TAG, "Posted fling: velocity=" 5031 + mFlingVelocity + ", delay=" + delay 5032 + ", keyCode=" + mPendingKeyCode); 5033 } 5034 return true; 5035 } 5036 return false; 5037 } 5038 5039 private void cancelFling() { 5040 if (mFlinging) { 5041 removeCallbacks(mFlingRunnable); 5042 mFlinging = false; 5043 } 5044 } 5045 5046 private final Runnable mFlingRunnable = new Runnable() { 5047 @Override 5048 public void run() { 5049 final long time = SystemClock.uptimeMillis(); 5050 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 5051 mFlingVelocity *= FLING_TICK_DECAY; 5052 if (!postFling(time)) { 5053 mFlinging = false; 5054 finishKeys(time); 5055 } 5056 } 5057 }; 5058 } 5059 5060 final class SyntheticKeyboardHandler { 5061 public void process(KeyEvent event) { 5062 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) { 5063 return; 5064 } 5065 5066 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5067 final int keyCode = event.getKeyCode(); 5068 final int metaState = event.getMetaState(); 5069 5070 // Check for fallback actions specified by the key character map. 5071 KeyCharacterMap.FallbackAction fallbackAction = 5072 kcm.getFallbackAction(keyCode, metaState); 5073 if (fallbackAction != null) { 5074 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5075 KeyEvent fallbackEvent = KeyEvent.obtain( 5076 event.getDownTime(), event.getEventTime(), 5077 event.getAction(), fallbackAction.keyCode, 5078 event.getRepeatCount(), fallbackAction.metaState, 5079 event.getDeviceId(), event.getScanCode(), 5080 flags, event.getSource(), null); 5081 fallbackAction.recycle(); 5082 enqueueInputEvent(fallbackEvent); 5083 } 5084 } 5085 } 5086 5087 /** 5088 * Returns true if the key is used for keyboard navigation. 5089 * @param keyEvent The key event. 5090 * @return True if the key is used for keyboard navigation. 5091 */ 5092 private static boolean isNavigationKey(KeyEvent keyEvent) { 5093 switch (keyEvent.getKeyCode()) { 5094 case KeyEvent.KEYCODE_DPAD_LEFT: 5095 case KeyEvent.KEYCODE_DPAD_RIGHT: 5096 case KeyEvent.KEYCODE_DPAD_UP: 5097 case KeyEvent.KEYCODE_DPAD_DOWN: 5098 case KeyEvent.KEYCODE_DPAD_CENTER: 5099 case KeyEvent.KEYCODE_PAGE_UP: 5100 case KeyEvent.KEYCODE_PAGE_DOWN: 5101 case KeyEvent.KEYCODE_MOVE_HOME: 5102 case KeyEvent.KEYCODE_MOVE_END: 5103 case KeyEvent.KEYCODE_TAB: 5104 case KeyEvent.KEYCODE_SPACE: 5105 case KeyEvent.KEYCODE_ENTER: 5106 return true; 5107 } 5108 return false; 5109 } 5110 5111 /** 5112 * Returns true if the key is used for typing. 5113 * @param keyEvent The key event. 5114 * @return True if the key is used for typing. 5115 */ 5116 private static boolean isTypingKey(KeyEvent keyEvent) { 5117 return keyEvent.getUnicodeChar() > 0; 5118 } 5119 5120 /** 5121 * See if the key event means we should leave touch mode (and leave touch mode if so). 5122 * @param event The key event. 5123 * @return Whether this key event should be consumed (meaning the act of 5124 * leaving touch mode alone is considered the event). 5125 */ 5126 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 5127 // Only relevant in touch mode. 5128 if (!mAttachInfo.mInTouchMode) { 5129 return false; 5130 } 5131 5132 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 5133 final int action = event.getAction(); 5134 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 5135 return false; 5136 } 5137 5138 // Don't leave touch mode if the IME told us not to. 5139 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 5140 return false; 5141 } 5142 5143 // If the key can be used for keyboard navigation then leave touch mode 5144 // and select a focused view if needed (in ensureTouchMode). 5145 // When a new focused view is selected, we consume the navigation key because 5146 // navigation doesn't make much sense unless a view already has focus so 5147 // the key's purpose is to set focus. 5148 if (isNavigationKey(event)) { 5149 return ensureTouchMode(false); 5150 } 5151 5152 // If the key can be used for typing then leave touch mode 5153 // and select a focused view if needed (in ensureTouchMode). 5154 // Always allow the view to process the typing key. 5155 if (isTypingKey(event)) { 5156 ensureTouchMode(false); 5157 return false; 5158 } 5159 5160 return false; 5161 } 5162 5163 /* drag/drop */ 5164 void setLocalDragState(Object obj) { 5165 mLocalDragState = obj; 5166 } 5167 5168 private void handleDragEvent(DragEvent event) { 5169 // From the root, only drag start/end/location are dispatched. entered/exited 5170 // are determined and dispatched by the viewgroup hierarchy, who then report 5171 // that back here for ultimate reporting back to the framework. 5172 if (mView != null && mAdded) { 5173 final int what = event.mAction; 5174 5175 if (what == DragEvent.ACTION_DRAG_EXITED) { 5176 // A direct EXITED event means that the window manager knows we've just crossed 5177 // a window boundary, so the current drag target within this one must have 5178 // just been exited. Send it the usual notifications and then we're done 5179 // for now. 5180 mView.dispatchDragEvent(event); 5181 } else { 5182 // Cache the drag description when the operation starts, then fill it in 5183 // on subsequent calls as a convenience 5184 if (what == DragEvent.ACTION_DRAG_STARTED) { 5185 mCurrentDragView = null; // Start the current-recipient tracking 5186 mDragDescription = event.mClipDescription; 5187 } else { 5188 event.mClipDescription = mDragDescription; 5189 } 5190 5191 // For events with a [screen] location, translate into window coordinates 5192 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 5193 mDragPoint.set(event.mX, event.mY); 5194 if (mTranslator != null) { 5195 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 5196 } 5197 5198 if (mCurScrollY != 0) { 5199 mDragPoint.offset(0, mCurScrollY); 5200 } 5201 5202 event.mX = mDragPoint.x; 5203 event.mY = mDragPoint.y; 5204 } 5205 5206 // Remember who the current drag target is pre-dispatch 5207 final View prevDragView = mCurrentDragView; 5208 5209 // Now dispatch the drag/drop event 5210 boolean result = mView.dispatchDragEvent(event); 5211 5212 // If we changed apparent drag target, tell the OS about it 5213 if (prevDragView != mCurrentDragView) { 5214 try { 5215 if (prevDragView != null) { 5216 mWindowSession.dragRecipientExited(mWindow); 5217 } 5218 if (mCurrentDragView != null) { 5219 mWindowSession.dragRecipientEntered(mWindow); 5220 } 5221 } catch (RemoteException e) { 5222 Slog.e(TAG, "Unable to note drag target change"); 5223 } 5224 } 5225 5226 // Report the drop result when we're done 5227 if (what == DragEvent.ACTION_DROP) { 5228 mDragDescription = null; 5229 try { 5230 Log.i(TAG, "Reporting drop result: " + result); 5231 mWindowSession.reportDropResult(mWindow, result); 5232 } catch (RemoteException e) { 5233 Log.e(TAG, "Unable to report drop result"); 5234 } 5235 } 5236 5237 // When the drag operation ends, release any local state object 5238 // that may have been in use 5239 if (what == DragEvent.ACTION_DRAG_ENDED) { 5240 setLocalDragState(null); 5241 } 5242 } 5243 } 5244 event.recycle(); 5245 } 5246 5247 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 5248 if (mSeq != args.seq) { 5249 // The sequence has changed, so we need to update our value and make 5250 // sure to do a traversal afterward so the window manager is given our 5251 // most recent data. 5252 mSeq = args.seq; 5253 mAttachInfo.mForceReportNewAttributes = true; 5254 scheduleTraversals(); 5255 } 5256 if (mView == null) return; 5257 if (args.localChanges != 0) { 5258 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 5259 } 5260 5261 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 5262 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 5263 mAttachInfo.mGlobalSystemUiVisibility = visibility; 5264 mView.dispatchSystemUiVisibilityChanged(visibility); 5265 } 5266 } 5267 5268 public void handleDispatchDoneAnimating() { 5269 if (mWindowsAnimating) { 5270 mWindowsAnimating = false; 5271 if (!mDirty.isEmpty() || mIsAnimating || mFullRedrawNeeded) { 5272 scheduleTraversals(); 5273 } 5274 } 5275 } 5276 5277 public void handleDispatchWindowShown() { 5278 mAttachInfo.mTreeObserver.dispatchOnWindowShown(); 5279 } 5280 5281 public void getLastTouchPoint(Point outLocation) { 5282 outLocation.x = (int) mLastTouchPoint.x; 5283 outLocation.y = (int) mLastTouchPoint.y; 5284 } 5285 5286 public void setDragFocus(View newDragTarget) { 5287 if (mCurrentDragView != newDragTarget) { 5288 mCurrentDragView = newDragTarget; 5289 } 5290 } 5291 5292 private AudioManager getAudioManager() { 5293 if (mView == null) { 5294 throw new IllegalStateException("getAudioManager called when there is no mView"); 5295 } 5296 if (mAudioManager == null) { 5297 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 5298 } 5299 return mAudioManager; 5300 } 5301 5302 public AccessibilityInteractionController getAccessibilityInteractionController() { 5303 if (mView == null) { 5304 throw new IllegalStateException("getAccessibilityInteractionController" 5305 + " called when there is no mView"); 5306 } 5307 if (mAccessibilityInteractionController == null) { 5308 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 5309 } 5310 return mAccessibilityInteractionController; 5311 } 5312 5313 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 5314 boolean insetsPending) throws RemoteException { 5315 5316 float appScale = mAttachInfo.mApplicationScale; 5317 boolean restore = false; 5318 if (params != null && mTranslator != null) { 5319 restore = true; 5320 params.backup(); 5321 mTranslator.translateWindowLayout(params); 5322 } 5323 if (params != null) { 5324 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 5325 } 5326 mPendingConfiguration.seq = 0; 5327 //Log.d(TAG, ">>>>>> CALLING relayout"); 5328 if (params != null && mOrigWindowType != params.type) { 5329 // For compatibility with old apps, don't crash here. 5330 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 5331 Slog.w(TAG, "Window type can not be changed after " 5332 + "the window is added; ignoring change of " + mView); 5333 params.type = mOrigWindowType; 5334 } 5335 } 5336 int relayoutResult = mWindowSession.relayout( 5337 mWindow, mSeq, params, 5338 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 5339 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 5340 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 5341 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 5342 mPendingStableInsets, mPendingConfiguration, mSurface); 5343 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 5344 if (restore) { 5345 params.restore(); 5346 } 5347 5348 if (mTranslator != null) { 5349 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5350 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5351 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5352 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5353 mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets); 5354 } 5355 return relayoutResult; 5356 } 5357 5358 /** 5359 * {@inheritDoc} 5360 */ 5361 @Override 5362 public void playSoundEffect(int effectId) { 5363 checkThread(); 5364 5365 if (mMediaDisabled) { 5366 return; 5367 } 5368 5369 try { 5370 final AudioManager audioManager = getAudioManager(); 5371 5372 switch (effectId) { 5373 case SoundEffectConstants.CLICK: 5374 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5375 return; 5376 case SoundEffectConstants.NAVIGATION_DOWN: 5377 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5378 return; 5379 case SoundEffectConstants.NAVIGATION_LEFT: 5380 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5381 return; 5382 case SoundEffectConstants.NAVIGATION_RIGHT: 5383 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5384 return; 5385 case SoundEffectConstants.NAVIGATION_UP: 5386 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5387 return; 5388 default: 5389 throw new IllegalArgumentException("unknown effect id " + effectId + 5390 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5391 } 5392 } catch (IllegalStateException e) { 5393 // Exception thrown by getAudioManager() when mView is null 5394 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5395 e.printStackTrace(); 5396 } 5397 } 5398 5399 /** 5400 * {@inheritDoc} 5401 */ 5402 @Override 5403 public boolean performHapticFeedback(int effectId, boolean always) { 5404 try { 5405 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5406 } catch (RemoteException e) { 5407 return false; 5408 } 5409 } 5410 5411 /** 5412 * {@inheritDoc} 5413 */ 5414 @Override 5415 public View focusSearch(View focused, int direction) { 5416 checkThread(); 5417 if (!(mView instanceof ViewGroup)) { 5418 return null; 5419 } 5420 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5421 } 5422 5423 public void debug() { 5424 mView.debug(); 5425 } 5426 5427 public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 5428 String innerPrefix = prefix + " "; 5429 writer.print(prefix); writer.println("ViewRoot:"); 5430 writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded); 5431 writer.print(" mRemoved="); writer.println(mRemoved); 5432 writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled="); 5433 writer.println(mConsumeBatchedInputScheduled); 5434 writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled="); 5435 writer.println(mConsumeBatchedInputImmediatelyScheduled); 5436 writer.print(innerPrefix); writer.print("mPendingInputEventCount="); 5437 writer.println(mPendingInputEventCount); 5438 writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled="); 5439 writer.println(mProcessInputEventsScheduled); 5440 writer.print(innerPrefix); writer.print("mTraversalScheduled="); 5441 writer.print(mTraversalScheduled); 5442 if (mTraversalScheduled) { 5443 writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")"); 5444 } else { 5445 writer.println(); 5446 } 5447 mFirstInputStage.dump(innerPrefix, writer); 5448 5449 mChoreographer.dump(prefix, writer); 5450 5451 writer.print(prefix); writer.println("View Hierarchy:"); 5452 dumpViewHierarchy(innerPrefix, writer, mView); 5453 } 5454 5455 private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) { 5456 writer.print(prefix); 5457 if (view == null) { 5458 writer.println("null"); 5459 return; 5460 } 5461 writer.println(view.toString()); 5462 if (!(view instanceof ViewGroup)) { 5463 return; 5464 } 5465 ViewGroup grp = (ViewGroup)view; 5466 final int N = grp.getChildCount(); 5467 if (N <= 0) { 5468 return; 5469 } 5470 prefix = prefix + " "; 5471 for (int i=0; i<N; i++) { 5472 dumpViewHierarchy(prefix, writer, grp.getChildAt(i)); 5473 } 5474 } 5475 5476 public void dumpGfxInfo(int[] info) { 5477 info[0] = info[1] = 0; 5478 if (mView != null) { 5479 getGfxInfo(mView, info); 5480 } 5481 } 5482 5483 private static void getGfxInfo(View view, int[] info) { 5484 RenderNode renderNode = view.mRenderNode; 5485 info[0]++; 5486 if (renderNode != null) { 5487 info[1] += renderNode.getDebugSize(); 5488 } 5489 5490 if (view instanceof ViewGroup) { 5491 ViewGroup group = (ViewGroup) view; 5492 5493 int count = group.getChildCount(); 5494 for (int i = 0; i < count; i++) { 5495 getGfxInfo(group.getChildAt(i), info); 5496 } 5497 } 5498 } 5499 5500 /** 5501 * @param immediate True, do now if not in traversal. False, put on queue and do later. 5502 * @return True, request has been queued. False, request has been completed. 5503 */ 5504 boolean die(boolean immediate) { 5505 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5506 // done by dispatchDetachedFromWindow will cause havoc on return. 5507 if (immediate && !mIsInTraversal) { 5508 doDie(); 5509 return false; 5510 } 5511 5512 if (!mIsDrawing) { 5513 destroyHardwareRenderer(); 5514 } else { 5515 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 5516 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5517 } 5518 mHandler.sendEmptyMessage(MSG_DIE); 5519 return true; 5520 } 5521 5522 void doDie() { 5523 checkThread(); 5524 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 5525 synchronized (this) { 5526 if (mRemoved) { 5527 return; 5528 } 5529 mRemoved = true; 5530 if (mAdded) { 5531 dispatchDetachedFromWindow(); 5532 } 5533 5534 if (mAdded && !mFirst) { 5535 destroyHardwareRenderer(); 5536 5537 if (mView != null) { 5538 int viewVisibility = mView.getVisibility(); 5539 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5540 if (mWindowAttributesChanged || viewVisibilityChanged) { 5541 // If layout params have been changed, first give them 5542 // to the window manager to make sure it has the correct 5543 // animation info. 5544 try { 5545 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5546 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5547 mWindowSession.finishDrawing(mWindow); 5548 } 5549 } catch (RemoteException e) { 5550 } 5551 } 5552 5553 mSurface.release(); 5554 } 5555 } 5556 5557 mAdded = false; 5558 } 5559 WindowManagerGlobal.getInstance().doRemoveView(this); 5560 } 5561 5562 public void requestUpdateConfiguration(Configuration config) { 5563 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5564 mHandler.sendMessage(msg); 5565 } 5566 5567 public void loadSystemProperties() { 5568 mHandler.post(new Runnable() { 5569 @Override 5570 public void run() { 5571 // Profiling 5572 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5573 profileRendering(mAttachInfo.mHasWindowFocus); 5574 5575 // Media (used by sound effects) 5576 mMediaDisabled = SystemProperties.getBoolean(PROPERTY_MEDIA_DISABLED, false); 5577 5578 // Hardware rendering 5579 if (mAttachInfo.mHardwareRenderer != null) { 5580 if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) { 5581 invalidate(); 5582 } 5583 } 5584 5585 // Layout debugging 5586 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5587 if (layout != mAttachInfo.mDebugLayout) { 5588 mAttachInfo.mDebugLayout = layout; 5589 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5590 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5591 } 5592 } 5593 5594 // detect emulator 5595 mIsEmulator = Build.HARDWARE.contains("goldfish"); 5596 mIsCircularEmulator = 5597 SystemProperties.getBoolean(PROPERTY_EMULATOR_CIRCULAR, false); 5598 } 5599 }); 5600 } 5601 5602 private void destroyHardwareRenderer() { 5603 HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 5604 5605 if (hardwareRenderer != null) { 5606 if (mView != null) { 5607 hardwareRenderer.destroyHardwareResources(mView); 5608 } 5609 hardwareRenderer.destroy(); 5610 hardwareRenderer.setRequested(false); 5611 5612 mAttachInfo.mHardwareRenderer = null; 5613 mAttachInfo.mHardwareAccelerated = false; 5614 } 5615 } 5616 5617 public void dispatchFinishInputConnection(InputConnection connection) { 5618 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5619 mHandler.sendMessage(msg); 5620 } 5621 5622 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5623 Rect visibleInsets, Rect stableInsets, boolean reportDraw, Configuration newConfig) { 5624 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5625 + " contentInsets=" + contentInsets.toShortString() 5626 + " visibleInsets=" + visibleInsets.toShortString() 5627 + " reportDraw=" + reportDraw); 5628 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5629 if (mTranslator != null) { 5630 mTranslator.translateRectInScreenToAppWindow(frame); 5631 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5632 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5633 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5634 } 5635 SomeArgs args = SomeArgs.obtain(); 5636 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5637 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5638 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5639 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5640 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5641 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5642 args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets; 5643 msg.obj = args; 5644 mHandler.sendMessage(msg); 5645 } 5646 5647 public void dispatchMoved(int newX, int newY) { 5648 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5649 if (mTranslator != null) { 5650 PointF point = new PointF(newX, newY); 5651 mTranslator.translatePointInScreenToAppWindow(point); 5652 newX = (int) (point.x + 0.5); 5653 newY = (int) (point.y + 0.5); 5654 } 5655 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5656 mHandler.sendMessage(msg); 5657 } 5658 5659 /** 5660 * Represents a pending input event that is waiting in a queue. 5661 * 5662 * Input events are processed in serial order by the timestamp specified by 5663 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5664 * one input event to the application at a time and waits for the application 5665 * to finish handling it before delivering the next one. 5666 * 5667 * However, because the application or IME can synthesize and inject multiple 5668 * key events at a time without going through the input dispatcher, we end up 5669 * needing a queue on the application's side. 5670 */ 5671 private static final class QueuedInputEvent { 5672 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5673 public static final int FLAG_DEFERRED = 1 << 1; 5674 public static final int FLAG_FINISHED = 1 << 2; 5675 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5676 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5677 public static final int FLAG_UNHANDLED = 1 << 5; 5678 5679 public QueuedInputEvent mNext; 5680 5681 public InputEvent mEvent; 5682 public InputEventReceiver mReceiver; 5683 public int mFlags; 5684 5685 public boolean shouldSkipIme() { 5686 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5687 return true; 5688 } 5689 return mEvent instanceof MotionEvent 5690 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5691 } 5692 5693 public boolean shouldSendToSynthesizer() { 5694 if ((mFlags & FLAG_UNHANDLED) != 0) { 5695 return true; 5696 } 5697 5698 return false; 5699 } 5700 5701 @Override 5702 public String toString() { 5703 StringBuilder sb = new StringBuilder("QueuedInputEvent{flags="); 5704 boolean hasPrevious = false; 5705 hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb); 5706 hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb); 5707 hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb); 5708 hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb); 5709 hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb); 5710 hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb); 5711 if (!hasPrevious) { 5712 sb.append("0"); 5713 } 5714 sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false")); 5715 sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false")); 5716 sb.append(", mEvent=" + mEvent + "}"); 5717 return sb.toString(); 5718 } 5719 5720 private boolean flagToString(String name, int flag, 5721 boolean hasPrevious, StringBuilder sb) { 5722 if ((mFlags & flag) != 0) { 5723 if (hasPrevious) { 5724 sb.append("|"); 5725 } 5726 sb.append(name); 5727 return true; 5728 } 5729 return hasPrevious; 5730 } 5731 } 5732 5733 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5734 InputEventReceiver receiver, int flags) { 5735 QueuedInputEvent q = mQueuedInputEventPool; 5736 if (q != null) { 5737 mQueuedInputEventPoolSize -= 1; 5738 mQueuedInputEventPool = q.mNext; 5739 q.mNext = null; 5740 } else { 5741 q = new QueuedInputEvent(); 5742 } 5743 5744 q.mEvent = event; 5745 q.mReceiver = receiver; 5746 q.mFlags = flags; 5747 return q; 5748 } 5749 5750 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5751 q.mEvent = null; 5752 q.mReceiver = null; 5753 5754 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5755 mQueuedInputEventPoolSize += 1; 5756 q.mNext = mQueuedInputEventPool; 5757 mQueuedInputEventPool = q; 5758 } 5759 } 5760 5761 void enqueueInputEvent(InputEvent event) { 5762 enqueueInputEvent(event, null, 0, false); 5763 } 5764 5765 void enqueueInputEvent(InputEvent event, 5766 InputEventReceiver receiver, int flags, boolean processImmediately) { 5767 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5768 5769 // Always enqueue the input event in order, regardless of its time stamp. 5770 // We do this because the application or the IME may inject key events 5771 // in response to touch events and we want to ensure that the injected keys 5772 // are processed in the order they were received and we cannot trust that 5773 // the time stamp of injected events are monotonic. 5774 QueuedInputEvent last = mPendingInputEventTail; 5775 if (last == null) { 5776 mPendingInputEventHead = q; 5777 mPendingInputEventTail = q; 5778 } else { 5779 last.mNext = q; 5780 mPendingInputEventTail = q; 5781 } 5782 mPendingInputEventCount += 1; 5783 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5784 mPendingInputEventCount); 5785 5786 if (processImmediately) { 5787 doProcessInputEvents(); 5788 } else { 5789 scheduleProcessInputEvents(); 5790 } 5791 } 5792 5793 private void scheduleProcessInputEvents() { 5794 if (!mProcessInputEventsScheduled) { 5795 mProcessInputEventsScheduled = true; 5796 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5797 msg.setAsynchronous(true); 5798 mHandler.sendMessage(msg); 5799 } 5800 } 5801 5802 void doProcessInputEvents() { 5803 // Deliver all pending input events in the queue. 5804 while (mPendingInputEventHead != null) { 5805 QueuedInputEvent q = mPendingInputEventHead; 5806 mPendingInputEventHead = q.mNext; 5807 if (mPendingInputEventHead == null) { 5808 mPendingInputEventTail = null; 5809 } 5810 q.mNext = null; 5811 5812 mPendingInputEventCount -= 1; 5813 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5814 mPendingInputEventCount); 5815 5816 long eventTime = q.mEvent.getEventTimeNano(); 5817 long oldestEventTime = eventTime; 5818 if (q.mEvent instanceof MotionEvent) { 5819 MotionEvent me = (MotionEvent)q.mEvent; 5820 if (me.getHistorySize() > 0) { 5821 oldestEventTime = me.getHistoricalEventTimeNano(0); 5822 } 5823 } 5824 mChoreographer.mFrameInfo.updateInputEventTime(eventTime, oldestEventTime); 5825 5826 deliverInputEvent(q); 5827 } 5828 5829 // We are done processing all input events that we can process right now 5830 // so we can clear the pending flag immediately. 5831 if (mProcessInputEventsScheduled) { 5832 mProcessInputEventsScheduled = false; 5833 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5834 } 5835 } 5836 5837 private void deliverInputEvent(QueuedInputEvent q) { 5838 Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5839 q.mEvent.getSequenceNumber()); 5840 if (mInputEventConsistencyVerifier != null) { 5841 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5842 } 5843 5844 InputStage stage; 5845 if (q.shouldSendToSynthesizer()) { 5846 stage = mSyntheticInputStage; 5847 } else { 5848 stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5849 } 5850 5851 if (stage != null) { 5852 stage.deliver(q); 5853 } else { 5854 finishInputEvent(q); 5855 } 5856 } 5857 5858 private void finishInputEvent(QueuedInputEvent q) { 5859 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5860 q.mEvent.getSequenceNumber()); 5861 5862 if (q.mReceiver != null) { 5863 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5864 q.mReceiver.finishInputEvent(q.mEvent, handled); 5865 } else { 5866 q.mEvent.recycleIfNeededAfterDispatch(); 5867 } 5868 5869 recycleQueuedInputEvent(q); 5870 } 5871 5872 static boolean isTerminalInputEvent(InputEvent event) { 5873 if (event instanceof KeyEvent) { 5874 final KeyEvent keyEvent = (KeyEvent)event; 5875 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5876 } else { 5877 final MotionEvent motionEvent = (MotionEvent)event; 5878 final int action = motionEvent.getAction(); 5879 return action == MotionEvent.ACTION_UP 5880 || action == MotionEvent.ACTION_CANCEL 5881 || action == MotionEvent.ACTION_HOVER_EXIT; 5882 } 5883 } 5884 5885 void scheduleConsumeBatchedInput() { 5886 if (!mConsumeBatchedInputScheduled) { 5887 mConsumeBatchedInputScheduled = true; 5888 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5889 mConsumedBatchedInputRunnable, null); 5890 } 5891 } 5892 5893 void unscheduleConsumeBatchedInput() { 5894 if (mConsumeBatchedInputScheduled) { 5895 mConsumeBatchedInputScheduled = false; 5896 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5897 mConsumedBatchedInputRunnable, null); 5898 } 5899 } 5900 5901 void scheduleConsumeBatchedInputImmediately() { 5902 if (!mConsumeBatchedInputImmediatelyScheduled) { 5903 unscheduleConsumeBatchedInput(); 5904 mConsumeBatchedInputImmediatelyScheduled = true; 5905 mHandler.post(mConsumeBatchedInputImmediatelyRunnable); 5906 } 5907 } 5908 5909 void doConsumeBatchedInput(long frameTimeNanos) { 5910 if (mConsumeBatchedInputScheduled) { 5911 mConsumeBatchedInputScheduled = false; 5912 if (mInputEventReceiver != null) { 5913 if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos) 5914 && frameTimeNanos != -1) { 5915 // If we consumed a batch here, we want to go ahead and schedule the 5916 // consumption of batched input events on the next frame. Otherwise, we would 5917 // wait until we have more input events pending and might get starved by other 5918 // things occurring in the process. If the frame time is -1, however, then 5919 // we're in a non-batching mode, so there's no need to schedule this. 5920 scheduleConsumeBatchedInput(); 5921 } 5922 } 5923 doProcessInputEvents(); 5924 } 5925 } 5926 5927 final class TraversalRunnable implements Runnable { 5928 @Override 5929 public void run() { 5930 doTraversal(); 5931 } 5932 } 5933 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 5934 5935 final class WindowInputEventReceiver extends InputEventReceiver { 5936 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 5937 super(inputChannel, looper); 5938 } 5939 5940 @Override 5941 public void onInputEvent(InputEvent event) { 5942 enqueueInputEvent(event, this, 0, true); 5943 } 5944 5945 @Override 5946 public void onBatchedInputEventPending() { 5947 if (mUnbufferedInputDispatch) { 5948 super.onBatchedInputEventPending(); 5949 } else { 5950 scheduleConsumeBatchedInput(); 5951 } 5952 } 5953 5954 @Override 5955 public void dispose() { 5956 unscheduleConsumeBatchedInput(); 5957 super.dispose(); 5958 } 5959 } 5960 WindowInputEventReceiver mInputEventReceiver; 5961 5962 final class ConsumeBatchedInputRunnable implements Runnable { 5963 @Override 5964 public void run() { 5965 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 5966 } 5967 } 5968 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 5969 new ConsumeBatchedInputRunnable(); 5970 boolean mConsumeBatchedInputScheduled; 5971 5972 final class ConsumeBatchedInputImmediatelyRunnable implements Runnable { 5973 @Override 5974 public void run() { 5975 doConsumeBatchedInput(-1); 5976 } 5977 } 5978 final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable = 5979 new ConsumeBatchedInputImmediatelyRunnable(); 5980 boolean mConsumeBatchedInputImmediatelyScheduled; 5981 5982 final class InvalidateOnAnimationRunnable implements Runnable { 5983 private boolean mPosted; 5984 private final ArrayList<View> mViews = new ArrayList<View>(); 5985 private final ArrayList<AttachInfo.InvalidateInfo> mViewRects = 5986 new ArrayList<AttachInfo.InvalidateInfo>(); 5987 private View[] mTempViews; 5988 private AttachInfo.InvalidateInfo[] mTempViewRects; 5989 5990 public void addView(View view) { 5991 synchronized (this) { 5992 mViews.add(view); 5993 postIfNeededLocked(); 5994 } 5995 } 5996 5997 public void addViewRect(AttachInfo.InvalidateInfo info) { 5998 synchronized (this) { 5999 mViewRects.add(info); 6000 postIfNeededLocked(); 6001 } 6002 } 6003 6004 public void removeView(View view) { 6005 synchronized (this) { 6006 mViews.remove(view); 6007 6008 for (int i = mViewRects.size(); i-- > 0; ) { 6009 AttachInfo.InvalidateInfo info = mViewRects.get(i); 6010 if (info.target == view) { 6011 mViewRects.remove(i); 6012 info.recycle(); 6013 } 6014 } 6015 6016 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 6017 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 6018 mPosted = false; 6019 } 6020 } 6021 } 6022 6023 @Override 6024 public void run() { 6025 final int viewCount; 6026 final int viewRectCount; 6027 synchronized (this) { 6028 mPosted = false; 6029 6030 viewCount = mViews.size(); 6031 if (viewCount != 0) { 6032 mTempViews = mViews.toArray(mTempViews != null 6033 ? mTempViews : new View[viewCount]); 6034 mViews.clear(); 6035 } 6036 6037 viewRectCount = mViewRects.size(); 6038 if (viewRectCount != 0) { 6039 mTempViewRects = mViewRects.toArray(mTempViewRects != null 6040 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 6041 mViewRects.clear(); 6042 } 6043 } 6044 6045 for (int i = 0; i < viewCount; i++) { 6046 mTempViews[i].invalidate(); 6047 mTempViews[i] = null; 6048 } 6049 6050 for (int i = 0; i < viewRectCount; i++) { 6051 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 6052 info.target.invalidate(info.left, info.top, info.right, info.bottom); 6053 info.recycle(); 6054 } 6055 } 6056 6057 private void postIfNeededLocked() { 6058 if (!mPosted) { 6059 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 6060 mPosted = true; 6061 } 6062 } 6063 } 6064 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 6065 new InvalidateOnAnimationRunnable(); 6066 6067 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 6068 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 6069 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6070 } 6071 6072 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 6073 long delayMilliseconds) { 6074 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 6075 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6076 } 6077 6078 public void dispatchInvalidateOnAnimation(View view) { 6079 mInvalidateOnAnimationRunnable.addView(view); 6080 } 6081 6082 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 6083 mInvalidateOnAnimationRunnable.addViewRect(info); 6084 } 6085 6086 public void cancelInvalidate(View view) { 6087 mHandler.removeMessages(MSG_INVALIDATE, view); 6088 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 6089 // them to the pool 6090 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 6091 mInvalidateOnAnimationRunnable.removeView(view); 6092 } 6093 6094 public void dispatchInputEvent(InputEvent event) { 6095 dispatchInputEvent(event, null); 6096 } 6097 6098 public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) { 6099 SomeArgs args = SomeArgs.obtain(); 6100 args.arg1 = event; 6101 args.arg2 = receiver; 6102 Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args); 6103 msg.setAsynchronous(true); 6104 mHandler.sendMessage(msg); 6105 } 6106 6107 public void synthesizeInputEvent(InputEvent event) { 6108 Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event); 6109 msg.setAsynchronous(true); 6110 mHandler.sendMessage(msg); 6111 } 6112 6113 public void dispatchKeyFromIme(KeyEvent event) { 6114 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 6115 msg.setAsynchronous(true); 6116 mHandler.sendMessage(msg); 6117 } 6118 6119 /** 6120 * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events. 6121 * 6122 * Note that it is the responsibility of the caller of this API to recycle the InputEvent it 6123 * passes in. 6124 */ 6125 public void dispatchUnhandledInputEvent(InputEvent event) { 6126 if (event instanceof MotionEvent) { 6127 event = MotionEvent.obtain((MotionEvent) event); 6128 } 6129 synthesizeInputEvent(event); 6130 } 6131 6132 public void dispatchAppVisibility(boolean visible) { 6133 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 6134 msg.arg1 = visible ? 1 : 0; 6135 mHandler.sendMessage(msg); 6136 } 6137 6138 public void dispatchGetNewSurface() { 6139 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 6140 mHandler.sendMessage(msg); 6141 } 6142 6143 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6144 Message msg = Message.obtain(); 6145 msg.what = MSG_WINDOW_FOCUS_CHANGED; 6146 msg.arg1 = hasFocus ? 1 : 0; 6147 msg.arg2 = inTouchMode ? 1 : 0; 6148 mHandler.sendMessage(msg); 6149 } 6150 6151 public void dispatchWindowShown() { 6152 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN); 6153 } 6154 6155 public void dispatchCloseSystemDialogs(String reason) { 6156 Message msg = Message.obtain(); 6157 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 6158 msg.obj = reason; 6159 mHandler.sendMessage(msg); 6160 } 6161 6162 public void dispatchDragEvent(DragEvent event) { 6163 final int what; 6164 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 6165 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 6166 mHandler.removeMessages(what); 6167 } else { 6168 what = MSG_DISPATCH_DRAG_EVENT; 6169 } 6170 Message msg = mHandler.obtainMessage(what, event); 6171 mHandler.sendMessage(msg); 6172 } 6173 6174 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6175 int localValue, int localChanges) { 6176 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 6177 args.seq = seq; 6178 args.globalVisibility = globalVisibility; 6179 args.localValue = localValue; 6180 args.localChanges = localChanges; 6181 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 6182 } 6183 6184 public void dispatchDoneAnimating() { 6185 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 6186 } 6187 6188 public void dispatchCheckFocus() { 6189 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 6190 // This will result in a call to checkFocus() below. 6191 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 6192 } 6193 } 6194 6195 /** 6196 * Post a callback to send a 6197 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6198 * This event is send at most once every 6199 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 6200 */ 6201 private void postSendWindowContentChangedCallback(View source, int changeType) { 6202 if (mSendWindowContentChangedAccessibilityEvent == null) { 6203 mSendWindowContentChangedAccessibilityEvent = 6204 new SendWindowContentChangedAccessibilityEvent(); 6205 } 6206 mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType); 6207 } 6208 6209 /** 6210 * Remove a posted callback to send a 6211 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6212 */ 6213 private void removeSendWindowContentChangedCallback() { 6214 if (mSendWindowContentChangedAccessibilityEvent != null) { 6215 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 6216 } 6217 } 6218 6219 @Override 6220 public boolean showContextMenuForChild(View originalView) { 6221 return false; 6222 } 6223 6224 @Override 6225 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 6226 return null; 6227 } 6228 6229 @Override 6230 public void createContextMenu(ContextMenu menu) { 6231 } 6232 6233 @Override 6234 public void childDrawableStateChanged(View child) { 6235 } 6236 6237 @Override 6238 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 6239 if (mView == null) { 6240 return false; 6241 } 6242 // Intercept accessibility focus events fired by virtual nodes to keep 6243 // track of accessibility focus position in such nodes. 6244 final int eventType = event.getEventType(); 6245 switch (eventType) { 6246 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 6247 final long sourceNodeId = event.getSourceNodeId(); 6248 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6249 sourceNodeId); 6250 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6251 if (source != null) { 6252 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6253 if (provider != null) { 6254 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 6255 sourceNodeId); 6256 final AccessibilityNodeInfo node; 6257 if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6258 node = provider.createAccessibilityNodeInfo( 6259 AccessibilityNodeProvider.HOST_VIEW_ID); 6260 } else { 6261 node = provider.createAccessibilityNodeInfo(virtualNodeId); 6262 } 6263 setAccessibilityFocus(source, node); 6264 } 6265 } 6266 } break; 6267 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 6268 final long sourceNodeId = event.getSourceNodeId(); 6269 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6270 sourceNodeId); 6271 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6272 if (source != null) { 6273 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6274 if (provider != null) { 6275 setAccessibilityFocus(null, null); 6276 } 6277 } 6278 } break; 6279 6280 6281 case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: { 6282 if (mAccessibilityFocusedHost != null && mAccessibilityFocusedVirtualView != null) { 6283 // We care only for changes rooted in the focused host. 6284 final long eventSourceId = event.getSourceNodeId(); 6285 final int hostViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6286 eventSourceId); 6287 if (hostViewId != mAccessibilityFocusedHost.getAccessibilityViewId()) { 6288 break; 6289 } 6290 6291 // We only care about changes that may change the virtual focused view bounds. 6292 final int changes = event.getContentChangeTypes(); 6293 if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) != 0 6294 || changes == AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) { 6295 AccessibilityNodeProvider provider = mAccessibilityFocusedHost 6296 .getAccessibilityNodeProvider(); 6297 if (provider != null) { 6298 final int virtualChildId = AccessibilityNodeInfo.getVirtualDescendantId( 6299 mAccessibilityFocusedVirtualView.getSourceNodeId()); 6300 if (virtualChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6301 mAccessibilityFocusedVirtualView = provider 6302 .createAccessibilityNodeInfo( 6303 AccessibilityNodeProvider.HOST_VIEW_ID); 6304 } else { 6305 mAccessibilityFocusedVirtualView = provider 6306 .createAccessibilityNodeInfo(virtualChildId); 6307 } 6308 } 6309 } 6310 } 6311 } break; 6312 } 6313 mAccessibilityManager.sendAccessibilityEvent(event); 6314 return true; 6315 } 6316 6317 @Override 6318 public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) { 6319 postSendWindowContentChangedCallback(source, changeType); 6320 } 6321 6322 @Override 6323 public boolean canResolveLayoutDirection() { 6324 return true; 6325 } 6326 6327 @Override 6328 public boolean isLayoutDirectionResolved() { 6329 return true; 6330 } 6331 6332 @Override 6333 public int getLayoutDirection() { 6334 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 6335 } 6336 6337 @Override 6338 public boolean canResolveTextDirection() { 6339 return true; 6340 } 6341 6342 @Override 6343 public boolean isTextDirectionResolved() { 6344 return true; 6345 } 6346 6347 @Override 6348 public int getTextDirection() { 6349 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 6350 } 6351 6352 @Override 6353 public boolean canResolveTextAlignment() { 6354 return true; 6355 } 6356 6357 @Override 6358 public boolean isTextAlignmentResolved() { 6359 return true; 6360 } 6361 6362 @Override 6363 public int getTextAlignment() { 6364 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 6365 } 6366 6367 private View getCommonPredecessor(View first, View second) { 6368 if (mTempHashSet == null) { 6369 mTempHashSet = new HashSet<View>(); 6370 } 6371 HashSet<View> seen = mTempHashSet; 6372 seen.clear(); 6373 View firstCurrent = first; 6374 while (firstCurrent != null) { 6375 seen.add(firstCurrent); 6376 ViewParent firstCurrentParent = firstCurrent.mParent; 6377 if (firstCurrentParent instanceof View) { 6378 firstCurrent = (View) firstCurrentParent; 6379 } else { 6380 firstCurrent = null; 6381 } 6382 } 6383 View secondCurrent = second; 6384 while (secondCurrent != null) { 6385 if (seen.contains(secondCurrent)) { 6386 seen.clear(); 6387 return secondCurrent; 6388 } 6389 ViewParent secondCurrentParent = secondCurrent.mParent; 6390 if (secondCurrentParent instanceof View) { 6391 secondCurrent = (View) secondCurrentParent; 6392 } else { 6393 secondCurrent = null; 6394 } 6395 } 6396 seen.clear(); 6397 return null; 6398 } 6399 6400 void checkThread() { 6401 if (mThread != Thread.currentThread()) { 6402 throw new CalledFromWrongThreadException( 6403 "Only the original thread that created a view hierarchy can touch its views."); 6404 } 6405 } 6406 6407 @Override 6408 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 6409 // ViewAncestor never intercepts touch event, so this can be a no-op 6410 } 6411 6412 @Override 6413 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 6414 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 6415 if (rectangle != null) { 6416 mTempRect.set(rectangle); 6417 mTempRect.offset(0, -mCurScrollY); 6418 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 6419 try { 6420 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect); 6421 } catch (RemoteException re) { 6422 /* ignore */ 6423 } 6424 } 6425 return scrolled; 6426 } 6427 6428 @Override 6429 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 6430 // Do nothing. 6431 } 6432 6433 @Override 6434 public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 6435 return false; 6436 } 6437 6438 @Override 6439 public void onStopNestedScroll(View target) { 6440 } 6441 6442 @Override 6443 public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) { 6444 } 6445 6446 @Override 6447 public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 6448 int dxUnconsumed, int dyUnconsumed) { 6449 } 6450 6451 @Override 6452 public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) { 6453 } 6454 6455 @Override 6456 public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 6457 return false; 6458 } 6459 6460 @Override 6461 public boolean onNestedPreFling(View target, float velocityX, float velocityY) { 6462 return false; 6463 } 6464 6465 @Override 6466 public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) { 6467 return false; 6468 } 6469 6470 void changeCanvasOpacity(boolean opaque) { 6471 Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque); 6472 if (mAttachInfo.mHardwareRenderer != null) { 6473 mAttachInfo.mHardwareRenderer.setOpaque(opaque); 6474 } 6475 } 6476 6477 class TakenSurfaceHolder extends BaseSurfaceHolder { 6478 @Override 6479 public boolean onAllowLockCanvas() { 6480 return mDrawingAllowed; 6481 } 6482 6483 @Override 6484 public void onRelayoutContainer() { 6485 // Not currently interesting -- from changing between fixed and layout size. 6486 } 6487 6488 @Override 6489 public void setFormat(int format) { 6490 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 6491 } 6492 6493 @Override 6494 public void setType(int type) { 6495 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 6496 } 6497 6498 @Override 6499 public void onUpdateSurface() { 6500 // We take care of format and type changes on our own. 6501 throw new IllegalStateException("Shouldn't be here"); 6502 } 6503 6504 @Override 6505 public boolean isCreating() { 6506 return mIsCreating; 6507 } 6508 6509 @Override 6510 public void setFixedSize(int width, int height) { 6511 throw new UnsupportedOperationException( 6512 "Currently only support sizing from layout"); 6513 } 6514 6515 @Override 6516 public void setKeepScreenOn(boolean screenOn) { 6517 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 6518 } 6519 } 6520 6521 static class W extends IWindow.Stub { 6522 private final WeakReference<ViewRootImpl> mViewAncestor; 6523 private final IWindowSession mWindowSession; 6524 6525 W(ViewRootImpl viewAncestor) { 6526 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 6527 mWindowSession = viewAncestor.mWindowSession; 6528 } 6529 6530 @Override 6531 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 6532 Rect visibleInsets, Rect stableInsets, boolean reportDraw, 6533 Configuration newConfig) { 6534 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6535 if (viewAncestor != null) { 6536 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 6537 visibleInsets, stableInsets, reportDraw, newConfig); 6538 } 6539 } 6540 6541 @Override 6542 public void moved(int newX, int newY) { 6543 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6544 if (viewAncestor != null) { 6545 viewAncestor.dispatchMoved(newX, newY); 6546 } 6547 } 6548 6549 @Override 6550 public void dispatchAppVisibility(boolean visible) { 6551 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6552 if (viewAncestor != null) { 6553 viewAncestor.dispatchAppVisibility(visible); 6554 } 6555 } 6556 6557 @Override 6558 public void dispatchGetNewSurface() { 6559 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6560 if (viewAncestor != null) { 6561 viewAncestor.dispatchGetNewSurface(); 6562 } 6563 } 6564 6565 @Override 6566 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6567 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6568 if (viewAncestor != null) { 6569 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 6570 } 6571 } 6572 6573 private static int checkCallingPermission(String permission) { 6574 try { 6575 return ActivityManagerNative.getDefault().checkPermission( 6576 permission, Binder.getCallingPid(), Binder.getCallingUid()); 6577 } catch (RemoteException e) { 6578 return PackageManager.PERMISSION_DENIED; 6579 } 6580 } 6581 6582 @Override 6583 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 6584 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6585 if (viewAncestor != null) { 6586 final View view = viewAncestor.mView; 6587 if (view != null) { 6588 if (checkCallingPermission(Manifest.permission.DUMP) != 6589 PackageManager.PERMISSION_GRANTED) { 6590 throw new SecurityException("Insufficient permissions to invoke" 6591 + " executeCommand() from pid=" + Binder.getCallingPid() 6592 + ", uid=" + Binder.getCallingUid()); 6593 } 6594 6595 OutputStream clientStream = null; 6596 try { 6597 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 6598 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 6599 } catch (IOException e) { 6600 e.printStackTrace(); 6601 } finally { 6602 if (clientStream != null) { 6603 try { 6604 clientStream.close(); 6605 } catch (IOException e) { 6606 e.printStackTrace(); 6607 } 6608 } 6609 } 6610 } 6611 } 6612 } 6613 6614 @Override 6615 public void closeSystemDialogs(String reason) { 6616 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6617 if (viewAncestor != null) { 6618 viewAncestor.dispatchCloseSystemDialogs(reason); 6619 } 6620 } 6621 6622 @Override 6623 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 6624 boolean sync) { 6625 if (sync) { 6626 try { 6627 mWindowSession.wallpaperOffsetsComplete(asBinder()); 6628 } catch (RemoteException e) { 6629 } 6630 } 6631 } 6632 6633 @Override 6634 public void dispatchWallpaperCommand(String action, int x, int y, 6635 int z, Bundle extras, boolean sync) { 6636 if (sync) { 6637 try { 6638 mWindowSession.wallpaperCommandComplete(asBinder(), null); 6639 } catch (RemoteException e) { 6640 } 6641 } 6642 } 6643 6644 /* Drag/drop */ 6645 @Override 6646 public void dispatchDragEvent(DragEvent event) { 6647 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6648 if (viewAncestor != null) { 6649 viewAncestor.dispatchDragEvent(event); 6650 } 6651 } 6652 6653 @Override 6654 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6655 int localValue, int localChanges) { 6656 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6657 if (viewAncestor != null) { 6658 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 6659 localValue, localChanges); 6660 } 6661 } 6662 6663 @Override 6664 public void doneAnimating() { 6665 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6666 if (viewAncestor != null) { 6667 viewAncestor.dispatchDoneAnimating(); 6668 } 6669 } 6670 6671 @Override 6672 public void dispatchWindowShown() { 6673 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6674 if (viewAncestor != null) { 6675 viewAncestor.dispatchWindowShown(); 6676 } 6677 } 6678 } 6679 6680 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 6681 public CalledFromWrongThreadException(String msg) { 6682 super(msg); 6683 } 6684 } 6685 6686 static RunQueue getRunQueue() { 6687 RunQueue rq = sRunQueues.get(); 6688 if (rq != null) { 6689 return rq; 6690 } 6691 rq = new RunQueue(); 6692 sRunQueues.set(rq); 6693 return rq; 6694 } 6695 6696 /** 6697 * The run queue is used to enqueue pending work from Views when no Handler is 6698 * attached. The work is executed during the next call to performTraversals on 6699 * the thread. 6700 * @hide 6701 */ 6702 static final class RunQueue { 6703 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 6704 6705 void post(Runnable action) { 6706 postDelayed(action, 0); 6707 } 6708 6709 void postDelayed(Runnable action, long delayMillis) { 6710 HandlerAction handlerAction = new HandlerAction(); 6711 handlerAction.action = action; 6712 handlerAction.delay = delayMillis; 6713 6714 synchronized (mActions) { 6715 mActions.add(handlerAction); 6716 } 6717 } 6718 6719 void removeCallbacks(Runnable action) { 6720 final HandlerAction handlerAction = new HandlerAction(); 6721 handlerAction.action = action; 6722 6723 synchronized (mActions) { 6724 final ArrayList<HandlerAction> actions = mActions; 6725 6726 while (actions.remove(handlerAction)) { 6727 // Keep going 6728 } 6729 } 6730 } 6731 6732 void executeActions(Handler handler) { 6733 synchronized (mActions) { 6734 final ArrayList<HandlerAction> actions = mActions; 6735 final int count = actions.size(); 6736 6737 for (int i = 0; i < count; i++) { 6738 final HandlerAction handlerAction = actions.get(i); 6739 handler.postDelayed(handlerAction.action, handlerAction.delay); 6740 } 6741 6742 actions.clear(); 6743 } 6744 } 6745 6746 private static class HandlerAction { 6747 Runnable action; 6748 long delay; 6749 6750 @Override 6751 public boolean equals(Object o) { 6752 if (this == o) return true; 6753 if (o == null || getClass() != o.getClass()) return false; 6754 6755 HandlerAction that = (HandlerAction) o; 6756 return !(action != null ? !action.equals(that.action) : that.action != null); 6757 6758 } 6759 6760 @Override 6761 public int hashCode() { 6762 int result = action != null ? action.hashCode() : 0; 6763 result = 31 * result + (int) (delay ^ (delay >>> 32)); 6764 return result; 6765 } 6766 } 6767 } 6768 6769 /** 6770 * Class for managing the accessibility interaction connection 6771 * based on the global accessibility state. 6772 */ 6773 final class AccessibilityInteractionConnectionManager 6774 implements AccessibilityStateChangeListener { 6775 @Override 6776 public void onAccessibilityStateChanged(boolean enabled) { 6777 if (enabled) { 6778 ensureConnection(); 6779 if (mAttachInfo.mHasWindowFocus) { 6780 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6781 View focusedView = mView.findFocus(); 6782 if (focusedView != null && focusedView != mView) { 6783 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6784 } 6785 } 6786 } else { 6787 ensureNoConnection(); 6788 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6789 } 6790 } 6791 6792 public void ensureConnection() { 6793 final boolean registered = 6794 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6795 if (!registered) { 6796 mAttachInfo.mAccessibilityWindowId = 6797 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6798 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6799 } 6800 } 6801 6802 public void ensureNoConnection() { 6803 final boolean registered = 6804 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6805 if (registered) { 6806 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6807 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6808 } 6809 } 6810 } 6811 6812 final class HighContrastTextManager implements HighTextContrastChangeListener { 6813 HighContrastTextManager() { 6814 mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled(); 6815 } 6816 @Override 6817 public void onHighTextContrastStateChanged(boolean enabled) { 6818 mAttachInfo.mHighContrastText = enabled; 6819 6820 // Destroy Displaylists so they can be recreated with high contrast recordings 6821 destroyHardwareResources(); 6822 6823 // Schedule redraw, which will rerecord + redraw all text 6824 invalidate(); 6825 } 6826 } 6827 6828 /** 6829 * This class is an interface this ViewAncestor provides to the 6830 * AccessibilityManagerService to the latter can interact with 6831 * the view hierarchy in this ViewAncestor. 6832 */ 6833 static final class AccessibilityInteractionConnection 6834 extends IAccessibilityInteractionConnection.Stub { 6835 private final WeakReference<ViewRootImpl> mViewRootImpl; 6836 6837 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6838 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6839 } 6840 6841 @Override 6842 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 6843 Region interactiveRegion, int interactionId, 6844 IAccessibilityInteractionConnectionCallback callback, int flags, 6845 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6846 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6847 if (viewRootImpl != null && viewRootImpl.mView != null) { 6848 viewRootImpl.getAccessibilityInteractionController() 6849 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 6850 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6851 interrogatingTid, spec); 6852 } else { 6853 // We cannot make the call and notify the caller so it does not wait. 6854 try { 6855 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6856 } catch (RemoteException re) { 6857 /* best effort - ignore */ 6858 } 6859 } 6860 } 6861 6862 @Override 6863 public void performAccessibilityAction(long accessibilityNodeId, int action, 6864 Bundle arguments, int interactionId, 6865 IAccessibilityInteractionConnectionCallback callback, int flags, 6866 int interrogatingPid, long interrogatingTid) { 6867 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6868 if (viewRootImpl != null && viewRootImpl.mView != null) { 6869 viewRootImpl.getAccessibilityInteractionController() 6870 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 6871 interactionId, callback, flags, interrogatingPid, interrogatingTid); 6872 } else { 6873 // We cannot make the call and notify the caller so it does not wait. 6874 try { 6875 callback.setPerformAccessibilityActionResult(false, interactionId); 6876 } catch (RemoteException re) { 6877 /* best effort - ignore */ 6878 } 6879 } 6880 } 6881 6882 @Override 6883 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 6884 String viewId, Region interactiveRegion, int interactionId, 6885 IAccessibilityInteractionConnectionCallback callback, int flags, 6886 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6887 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6888 if (viewRootImpl != null && viewRootImpl.mView != null) { 6889 viewRootImpl.getAccessibilityInteractionController() 6890 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 6891 viewId, interactiveRegion, interactionId, callback, flags, 6892 interrogatingPid, interrogatingTid, spec); 6893 } else { 6894 // We cannot make the call and notify the caller so it does not wait. 6895 try { 6896 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6897 } catch (RemoteException re) { 6898 /* best effort - ignore */ 6899 } 6900 } 6901 } 6902 6903 @Override 6904 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 6905 Region interactiveRegion, int interactionId, 6906 IAccessibilityInteractionConnectionCallback callback, int flags, 6907 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6908 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6909 if (viewRootImpl != null && viewRootImpl.mView != null) { 6910 viewRootImpl.getAccessibilityInteractionController() 6911 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 6912 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6913 interrogatingTid, spec); 6914 } else { 6915 // We cannot make the call and notify the caller so it does not wait. 6916 try { 6917 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6918 } catch (RemoteException re) { 6919 /* best effort - ignore */ 6920 } 6921 } 6922 } 6923 6924 @Override 6925 public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion, 6926 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6927 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6928 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6929 if (viewRootImpl != null && viewRootImpl.mView != null) { 6930 viewRootImpl.getAccessibilityInteractionController() 6931 .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion, 6932 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6933 spec); 6934 } else { 6935 // We cannot make the call and notify the caller so it does not wait. 6936 try { 6937 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6938 } catch (RemoteException re) { 6939 /* best effort - ignore */ 6940 } 6941 } 6942 } 6943 6944 @Override 6945 public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion, 6946 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6947 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6948 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6949 if (viewRootImpl != null && viewRootImpl.mView != null) { 6950 viewRootImpl.getAccessibilityInteractionController() 6951 .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion, 6952 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6953 spec); 6954 } else { 6955 // We cannot make the call and notify the caller so it does not wait. 6956 try { 6957 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6958 } catch (RemoteException re) { 6959 /* best effort - ignore */ 6960 } 6961 } 6962 } 6963 } 6964 6965 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 6966 private int mChangeTypes = 0; 6967 6968 public View mSource; 6969 public long mLastEventTimeMillis; 6970 6971 @Override 6972 public void run() { 6973 // The accessibility may be turned off while we were waiting so check again. 6974 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 6975 mLastEventTimeMillis = SystemClock.uptimeMillis(); 6976 AccessibilityEvent event = AccessibilityEvent.obtain(); 6977 event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 6978 event.setContentChangeTypes(mChangeTypes); 6979 mSource.sendAccessibilityEventUnchecked(event); 6980 } else { 6981 mLastEventTimeMillis = 0; 6982 } 6983 // In any case reset to initial state. 6984 mSource.resetSubtreeAccessibilityStateChanged(); 6985 mSource = null; 6986 mChangeTypes = 0; 6987 } 6988 6989 public void runOrPost(View source, int changeType) { 6990 if (mSource != null) { 6991 // If there is no common predecessor, then mSource points to 6992 // a removed view, hence in this case always prefer the source. 6993 View predecessor = getCommonPredecessor(mSource, source); 6994 mSource = (predecessor != null) ? predecessor : source; 6995 mChangeTypes |= changeType; 6996 return; 6997 } 6998 mSource = source; 6999 mChangeTypes = changeType; 7000 final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis; 7001 final long minEventIntevalMillis = 7002 ViewConfiguration.getSendRecurringAccessibilityEventsInterval(); 7003 if (timeSinceLastMillis >= minEventIntevalMillis) { 7004 mSource.removeCallbacks(this); 7005 run(); 7006 } else { 7007 mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis); 7008 } 7009 } 7010 } 7011} 7012