ViewRootImpl.java revision 34457f51e0a19555a7b9c6df6803ee1aa04c51b8
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.Context; 25import android.content.pm.PackageManager; 26import android.content.res.CompatibilityInfo; 27import android.content.res.Configuration; 28import android.content.res.Resources; 29import android.graphics.Canvas; 30import android.graphics.Matrix; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.graphics.drawable.Drawable; 39import android.hardware.display.DisplayManager; 40import android.hardware.display.DisplayManager.DisplayListener; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Handler; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.Process; 50import android.os.RemoteException; 51import android.os.SystemClock; 52import android.os.SystemProperties; 53import android.os.Trace; 54import android.util.AndroidRuntimeException; 55import android.util.DisplayMetrics; 56import android.util.Log; 57import android.util.Slog; 58import android.util.TimeUtils; 59import android.util.TypedValue; 60import android.view.Surface.OutOfResourcesException; 61import android.view.View.AttachInfo; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityManager; 65import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 66import android.view.accessibility.AccessibilityManager.HighTextContrastChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.R; 78import com.android.internal.os.SomeArgs; 79import com.android.internal.util.ScreenShapeHelper; 80import com.android.internal.view.BaseSurfaceHolder; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.FileDescriptor; 84import java.io.IOException; 85import java.io.OutputStream; 86import java.io.PrintWriter; 87import java.lang.ref.WeakReference; 88import java.util.ArrayList; 89import java.util.HashSet; 90 91/** 92 * The top of a view hierarchy, implementing the needed protocol between View 93 * and the WindowManager. This is for the most part an internal implementation 94 * detail of {@link WindowManagerGlobal}. 95 * 96 * {@hide} 97 */ 98@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 99public final class ViewRootImpl implements ViewParent, 100 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 101 private static final String TAG = "ViewRootImpl"; 102 private static final boolean DBG = false; 103 private static final boolean LOCAL_LOGV = false; 104 /** @noinspection PointlessBooleanExpression*/ 105 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 106 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 107 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 108 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 109 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 110 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 111 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 112 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 113 private static final boolean DEBUG_FPS = false; 114 private static final boolean DEBUG_INPUT_STAGES = false || LOCAL_LOGV; 115 116 /** 117 * Set this system property to true to force the view hierarchy to render 118 * at 60 Hz. This can be used to measure the potential framerate. 119 */ 120 private static final String PROPERTY_PROFILE_RENDERING = "viewroot.profile_rendering"; 121 122 // properties used by emulator to determine display shape 123 public static final String PROPERTY_EMULATOR_CIRCULAR = "ro.emulator.circular"; 124 public static final String PROPERTY_EMULATOR_WIN_OUTSET_BOTTOM_PX = 125 "ro.emu.win_outset_bottom_px"; 126 127 /** 128 * Maximum time we allow the user to roll the trackball enough to generate 129 * a key event, before resetting the counters. 130 */ 131 static final int MAX_TRACKBALL_DELAY = 250; 132 133 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 134 135 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 136 static boolean sFirstDrawComplete = false; 137 138 static final ArrayList<ComponentCallbacks> sConfigCallbacks 139 = new ArrayList<ComponentCallbacks>(); 140 141 final Context mContext; 142 final IWindowSession mWindowSession; 143 final Display mDisplay; 144 final DisplayManager mDisplayManager; 145 final String mBasePackageName; 146 147 final int[] mTmpLocation = new int[2]; 148 149 final TypedValue mTmpValue = new TypedValue(); 150 151 final Thread mThread; 152 153 final WindowLeaked mLocation; 154 155 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 156 157 final W mWindow; 158 159 final int mTargetSdkVersion; 160 161 int mSeq; 162 163 View mView; 164 165 View mAccessibilityFocusedHost; 166 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 167 168 int mViewVisibility; 169 boolean mAppVisible = true; 170 int mOrigWindowType = -1; 171 172 // Set to true if the owner of this window is in the stopped state, 173 // so the window should no longer be active. 174 boolean mStopped = false; 175 176 boolean mLastInCompatMode = false; 177 178 SurfaceHolder.Callback2 mSurfaceHolderCallback; 179 BaseSurfaceHolder mSurfaceHolder; 180 boolean mIsCreating; 181 boolean mDrawingAllowed; 182 183 final Region mTransparentRegion; 184 final Region mPreviousTransparentRegion; 185 186 int mWidth; 187 int mHeight; 188 Rect mDirty; 189 boolean mIsAnimating; 190 191 CompatibilityInfo.Translator mTranslator; 192 193 final View.AttachInfo mAttachInfo; 194 InputChannel mInputChannel; 195 InputQueue.Callback mInputQueueCallback; 196 InputQueue mInputQueue; 197 FallbackEventHandler mFallbackEventHandler; 198 Choreographer mChoreographer; 199 200 final Rect mTempRect; // used in the transaction to not thrash the heap. 201 final Rect mVisRect; // used to retrieve visible rect of focused view. 202 203 boolean mTraversalScheduled; 204 int mTraversalBarrier; 205 boolean mWillDrawSoon; 206 /** Set to true while in performTraversals for detecting when die(true) is called from internal 207 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 208 boolean mIsInTraversal; 209 boolean mApplyInsetsRequested; 210 boolean mLayoutRequested; 211 boolean mFirst; 212 boolean mReportNextDraw; 213 boolean mFullRedrawNeeded; 214 boolean mNewSurfaceNeeded; 215 boolean mHasHadWindowFocus; 216 boolean mLastWasImTarget; 217 boolean mWindowsAnimating; 218 boolean mDrawDuringWindowsAnimating; 219 boolean mIsDrawing; 220 int mLastSystemUiVisibility; 221 int mClientWindowLayoutFlags; 222 boolean mLastOverscanRequested; 223 224 // Pool of queued input events. 225 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 226 private QueuedInputEvent mQueuedInputEventPool; 227 private int mQueuedInputEventPoolSize; 228 229 /* Input event queue. 230 * Pending input events are input events waiting to be delivered to the input stages 231 * and handled by the application. 232 */ 233 QueuedInputEvent mPendingInputEventHead; 234 QueuedInputEvent mPendingInputEventTail; 235 int mPendingInputEventCount; 236 boolean mProcessInputEventsScheduled; 237 boolean mUnbufferedInputDispatch; 238 String mPendingInputEventQueueLengthCounterName = "pq"; 239 240 InputStage mFirstInputStage; 241 InputStage mFirstPostImeInputStage; 242 InputStage mSyntheticInputStage; 243 244 boolean mWindowAttributesChanged = false; 245 int mWindowAttributesChangesFlag = 0; 246 247 // These can be accessed by any thread, must be protected with a lock. 248 // Surface can never be reassigned or cleared (use Surface.clear()). 249 final Surface mSurface = new Surface(); 250 251 boolean mAdded; 252 boolean mAddedTouchMode; 253 254 final DisplayAdjustments mDisplayAdjustments; 255 256 // These are accessed by multiple threads. 257 final Rect mWinFrame; // frame given by window manager. 258 259 final Rect mPendingOverscanInsets = new Rect(); 260 final Rect mPendingVisibleInsets = new Rect(); 261 final Rect mPendingStableInsets = new Rect(); 262 final Rect mPendingContentInsets = new Rect(); 263 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 264 = new ViewTreeObserver.InternalInsetsInfo(); 265 266 final Rect mDispatchContentInsets = new Rect(); 267 final Rect mDispatchStableInsets = new Rect(); 268 269 private WindowInsets mLastWindowInsets; 270 271 final Configuration mLastConfiguration = new Configuration(); 272 final Configuration mPendingConfiguration = new Configuration(); 273 274 boolean mScrollMayChange; 275 int mSoftInputMode; 276 WeakReference<View> mLastScrolledFocus; 277 int mScrollY; 278 int mCurScrollY; 279 Scroller mScroller; 280 HardwareLayer mResizeBuffer; 281 long mResizeBufferStartTime; 282 int mResizeBufferDuration; 283 // Used to block the creation of the ResizeBuffer due to invalidations in 284 // the previous DisplayList tree that must prevent re-execution. 285 // Currently this means a functor was detached. 286 boolean mBlockResizeBuffer; 287 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 288 private ArrayList<LayoutTransition> mPendingTransitions; 289 290 final ViewConfiguration mViewConfiguration; 291 292 /* Drag/drop */ 293 ClipDescription mDragDescription; 294 View mCurrentDragView; 295 volatile Object mLocalDragState; 296 final PointF mDragPoint = new PointF(); 297 final PointF mLastTouchPoint = new PointF(); 298 299 private boolean mProfileRendering; 300 private Choreographer.FrameCallback mRenderProfiler; 301 private boolean mRenderProfilingEnabled; 302 303 // Variables to track frames per second, enabled via DEBUG_FPS flag 304 private long mFpsStartTime = -1; 305 private long mFpsPrevTime = -1; 306 private int mFpsNumFrames; 307 308 /** 309 * see {@link #playSoundEffect(int)} 310 */ 311 AudioManager mAudioManager; 312 313 final AccessibilityManager mAccessibilityManager; 314 315 AccessibilityInteractionController mAccessibilityInteractionController; 316 317 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 318 HighContrastTextManager mHighContrastTextManager; 319 320 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 321 322 HashSet<View> mTempHashSet; 323 324 private final int mDensity; 325 private final int mNoncompatDensity; 326 327 private boolean mInLayout = false; 328 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 329 boolean mHandlingLayoutInLayoutRequest = false; 330 331 private int mViewLayoutDirectionInitial; 332 333 /** Set to true once doDie() has been called. */ 334 private boolean mRemoved; 335 336 private final boolean mWindowIsRound; 337 338 /** 339 * Consistency verifier for debugging purposes. 340 */ 341 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 342 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 343 new InputEventConsistencyVerifier(this, 0) : null; 344 345 static final class SystemUiVisibilityInfo { 346 int seq; 347 int globalVisibility; 348 int localValue; 349 int localChanges; 350 } 351 352 public ViewRootImpl(Context context, Display display) { 353 mContext = context; 354 mWindowSession = WindowManagerGlobal.getWindowSession(); 355 mDisplay = display; 356 mBasePackageName = context.getBasePackageName(); 357 358 mDisplayAdjustments = display.getDisplayAdjustments(); 359 360 mThread = Thread.currentThread(); 361 mLocation = new WindowLeaked(null); 362 mLocation.fillInStackTrace(); 363 mWidth = -1; 364 mHeight = -1; 365 mDirty = new Rect(); 366 mTempRect = new Rect(); 367 mVisRect = new Rect(); 368 mWinFrame = new Rect(); 369 mWindow = new W(this); 370 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 371 mViewVisibility = View.GONE; 372 mTransparentRegion = new Region(); 373 mPreviousTransparentRegion = new Region(); 374 mFirst = true; // true for the first time the view is added 375 mAdded = false; 376 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 377 mAccessibilityManager = AccessibilityManager.getInstance(context); 378 mAccessibilityInteractionConnectionManager = 379 new AccessibilityInteractionConnectionManager(); 380 mAccessibilityManager.addAccessibilityStateChangeListener( 381 mAccessibilityInteractionConnectionManager); 382 mHighContrastTextManager = new HighContrastTextManager(); 383 mAccessibilityManager.addHighTextContrastStateChangeListener( 384 mHighContrastTextManager); 385 mViewConfiguration = ViewConfiguration.get(context); 386 mDensity = context.getResources().getDisplayMetrics().densityDpi; 387 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 388 mFallbackEventHandler = new PhoneFallbackEventHandler(context); 389 mChoreographer = Choreographer.getInstance(); 390 mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE); 391 loadSystemProperties(); 392 mWindowIsRound = ScreenShapeHelper.getWindowIsRound(context.getResources()); 393 } 394 395 public static void addFirstDrawHandler(Runnable callback) { 396 synchronized (sFirstDrawHandlers) { 397 if (!sFirstDrawComplete) { 398 sFirstDrawHandlers.add(callback); 399 } 400 } 401 } 402 403 public static void addConfigCallback(ComponentCallbacks callback) { 404 synchronized (sConfigCallbacks) { 405 sConfigCallbacks.add(callback); 406 } 407 } 408 409 // FIXME for perf testing only 410 private boolean mProfile = false; 411 412 /** 413 * Call this to profile the next traversal call. 414 * FIXME for perf testing only. Remove eventually 415 */ 416 public void profile() { 417 mProfile = true; 418 } 419 420 /** 421 * Indicates whether we are in touch mode. Calling this method triggers an IPC 422 * call and should be avoided whenever possible. 423 * 424 * @return True, if the device is in touch mode, false otherwise. 425 * 426 * @hide 427 */ 428 static boolean isInTouchMode() { 429 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 430 if (windowSession != null) { 431 try { 432 return windowSession.getInTouchMode(); 433 } catch (RemoteException e) { 434 } 435 } 436 return false; 437 } 438 439 /** 440 * We have one child 441 */ 442 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 443 synchronized (this) { 444 if (mView == null) { 445 mView = view; 446 447 mAttachInfo.mDisplayState = mDisplay.getState(); 448 mDisplayManager.registerDisplayListener(mDisplayListener, mHandler); 449 450 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 451 mFallbackEventHandler.setView(view); 452 mWindowAttributes.copyFrom(attrs); 453 if (mWindowAttributes.packageName == null) { 454 mWindowAttributes.packageName = mBasePackageName; 455 } 456 attrs = mWindowAttributes; 457 // Keep track of the actual window flags supplied by the client. 458 mClientWindowLayoutFlags = attrs.flags; 459 460 setAccessibilityFocus(null, null); 461 462 if (view instanceof RootViewSurfaceTaker) { 463 mSurfaceHolderCallback = 464 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 465 if (mSurfaceHolderCallback != null) { 466 mSurfaceHolder = new TakenSurfaceHolder(); 467 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 468 } 469 } 470 471 // Compute surface insets required to draw at specified Z value. 472 // TODO: Use real shadow insets for a constant max Z. 473 if (!attrs.hasManualSurfaceInsets) { 474 final int surfaceInset = (int) Math.ceil(view.getZ() * 2); 475 attrs.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset); 476 } 477 478 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 479 mTranslator = compatibilityInfo.getTranslator(); 480 481 // If the application owns the surface, don't enable hardware acceleration 482 if (mSurfaceHolder == null) { 483 enableHardwareAcceleration(attrs); 484 } 485 486 boolean restore = false; 487 if (mTranslator != null) { 488 mSurface.setCompatibilityTranslator(mTranslator); 489 restore = true; 490 attrs.backup(); 491 mTranslator.translateWindowLayout(attrs); 492 } 493 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 494 495 if (!compatibilityInfo.supportsScreen()) { 496 attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 497 mLastInCompatMode = true; 498 } 499 500 mSoftInputMode = attrs.softInputMode; 501 mWindowAttributesChanged = true; 502 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 503 mAttachInfo.mRootView = view; 504 mAttachInfo.mScalingRequired = mTranslator != null; 505 mAttachInfo.mApplicationScale = 506 mTranslator == null ? 1.0f : mTranslator.applicationScale; 507 if (panelParentView != null) { 508 mAttachInfo.mPanelParentWindowToken 509 = panelParentView.getApplicationWindowToken(); 510 } 511 mAdded = true; 512 int res; /* = WindowManagerImpl.ADD_OKAY; */ 513 514 // Schedule the first layout -before- adding to the window 515 // manager, to make sure we do the relayout before receiving 516 // any other events from the system. 517 requestLayout(); 518 if ((mWindowAttributes.inputFeatures 519 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 520 mInputChannel = new InputChannel(); 521 } 522 try { 523 mOrigWindowType = mWindowAttributes.type; 524 mAttachInfo.mRecomputeGlobalAttributes = true; 525 collectViewAttributes(); 526 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 527 getHostVisibility(), mDisplay.getDisplayId(), 528 mAttachInfo.mContentInsets, mAttachInfo.mStableInsets, mInputChannel); 529 } catch (RemoteException e) { 530 mAdded = false; 531 mView = null; 532 mAttachInfo.mRootView = null; 533 mInputChannel = null; 534 mFallbackEventHandler.setView(null); 535 unscheduleTraversals(); 536 setAccessibilityFocus(null, null); 537 throw new RuntimeException("Adding window failed", e); 538 } finally { 539 if (restore) { 540 attrs.restore(); 541 } 542 } 543 544 if (mTranslator != null) { 545 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 546 } 547 mPendingOverscanInsets.set(0, 0, 0, 0); 548 mPendingContentInsets.set(mAttachInfo.mContentInsets); 549 mPendingStableInsets.set(mAttachInfo.mStableInsets); 550 mPendingVisibleInsets.set(0, 0, 0, 0); 551 try { 552 relayoutWindow(attrs, getHostVisibility(), false); 553 } catch (RemoteException e) { 554 if (DEBUG_LAYOUT) Log.e(TAG, "failed to relayoutWindow", e); 555 } 556 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 557 if (res < WindowManagerGlobal.ADD_OKAY) { 558 mAttachInfo.mRootView = null; 559 mAdded = false; 560 mFallbackEventHandler.setView(null); 561 unscheduleTraversals(); 562 setAccessibilityFocus(null, null); 563 switch (res) { 564 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 565 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 566 throw new WindowManager.BadTokenException( 567 "Unable to add window -- token " + attrs.token 568 + " is not valid; is your activity running?"); 569 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 570 throw new WindowManager.BadTokenException( 571 "Unable to add window -- token " + attrs.token 572 + " is not for an application"); 573 case WindowManagerGlobal.ADD_APP_EXITING: 574 throw new WindowManager.BadTokenException( 575 "Unable to add window -- app for token " + attrs.token 576 + " is exiting"); 577 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 578 throw new WindowManager.BadTokenException( 579 "Unable to add window -- window " + mWindow 580 + " has already been added"); 581 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 582 // Silently ignore -- we would have just removed it 583 // right away, anyway. 584 return; 585 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 586 throw new WindowManager.BadTokenException( 587 "Unable to add window " + mWindow + 588 " -- another window of this type already exists"); 589 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 590 throw new WindowManager.BadTokenException( 591 "Unable to add window " + mWindow + 592 " -- permission denied for this window type"); 593 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 594 throw new WindowManager.InvalidDisplayException( 595 "Unable to add window " + mWindow + 596 " -- the specified display can not be found"); 597 case WindowManagerGlobal.ADD_INVALID_TYPE: 598 throw new WindowManager.InvalidDisplayException( 599 "Unable to add window " + mWindow 600 + " -- the specified window type is not valid"); 601 } 602 throw new RuntimeException( 603 "Unable to add window -- unknown error code " + res); 604 } 605 606 if (view instanceof RootViewSurfaceTaker) { 607 mInputQueueCallback = 608 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 609 } 610 if (mInputChannel != null) { 611 if (mInputQueueCallback != null) { 612 mInputQueue = new InputQueue(); 613 mInputQueueCallback.onInputQueueCreated(mInputQueue); 614 } 615 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 616 Looper.myLooper()); 617 } 618 619 view.assignParent(this); 620 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 621 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 622 623 if (mAccessibilityManager.isEnabled()) { 624 mAccessibilityInteractionConnectionManager.ensureConnection(); 625 } 626 627 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 628 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 629 } 630 631 // Set up the input pipeline. 632 CharSequence counterSuffix = attrs.getTitle(); 633 mSyntheticInputStage = new SyntheticInputStage(); 634 InputStage viewPostImeStage = new ViewPostImeInputStage(mSyntheticInputStage); 635 InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, 636 "aq:native-post-ime:" + counterSuffix); 637 InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage); 638 InputStage imeStage = new ImeInputStage(earlyPostImeStage, 639 "aq:ime:" + counterSuffix); 640 InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage); 641 InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, 642 "aq:native-pre-ime:" + counterSuffix); 643 644 mFirstInputStage = nativePreImeStage; 645 mFirstPostImeInputStage = earlyPostImeStage; 646 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix; 647 } 648 } 649 } 650 651 /** Whether the window is in local focus mode or not */ 652 private boolean isInLocalFocusMode() { 653 return (mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE) != 0; 654 } 655 656 public CharSequence getTitle() { 657 return mWindowAttributes.getTitle(); 658 } 659 660 void destroyHardwareResources() { 661 if (mAttachInfo.mHardwareRenderer != null) { 662 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 663 mAttachInfo.mHardwareRenderer.destroy(); 664 } 665 } 666 667 public void detachFunctor(long functor) { 668 // TODO: Make the resize buffer some other way to not need this block 669 mBlockResizeBuffer = true; 670 if (mAttachInfo.mHardwareRenderer != null) { 671 // Fence so that any pending invokeFunctor() messages will be processed 672 // before we return from detachFunctor. 673 mAttachInfo.mHardwareRenderer.stopDrawing(); 674 } 675 } 676 677 /** 678 * Schedules the functor for execution in either kModeProcess or 679 * kModeProcessNoContext, depending on whether or not there is an EGLContext. 680 * 681 * @param functor The native functor to invoke 682 * @param waitForCompletion If true, this will not return until the functor 683 * has invoked. If false, the functor may be invoked 684 * asynchronously. 685 */ 686 public void invokeFunctor(long functor, boolean waitForCompletion) { 687 ThreadedRenderer.invokeFunctor(functor, waitForCompletion); 688 } 689 690 public void registerAnimatingRenderNode(RenderNode animator) { 691 if (mAttachInfo.mHardwareRenderer != null) { 692 mAttachInfo.mHardwareRenderer.registerAnimatingRenderNode(animator); 693 } else { 694 if (mAttachInfo.mPendingAnimatingRenderNodes == null) { 695 mAttachInfo.mPendingAnimatingRenderNodes = new ArrayList<RenderNode>(); 696 } 697 mAttachInfo.mPendingAnimatingRenderNodes.add(animator); 698 } 699 } 700 701 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 702 mAttachInfo.mHardwareAccelerated = false; 703 mAttachInfo.mHardwareAccelerationRequested = false; 704 705 // Don't enable hardware acceleration when the application is in compatibility mode 706 if (mTranslator != null) return; 707 708 // Try to enable hardware acceleration if requested 709 final boolean hardwareAccelerated = 710 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 711 712 if (hardwareAccelerated) { 713 if (!HardwareRenderer.isAvailable()) { 714 return; 715 } 716 717 // Persistent processes (including the system) should not do 718 // accelerated rendering on low-end devices. In that case, 719 // sRendererDisabled will be set. In addition, the system process 720 // itself should never do accelerated rendering. In that case, both 721 // sRendererDisabled and sSystemRendererDisabled are set. When 722 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 723 // can be used by code on the system process to escape that and enable 724 // HW accelerated drawing. (This is basically for the lock screen.) 725 726 final boolean fakeHwAccelerated = (attrs.privateFlags & 727 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 728 final boolean forceHwAccelerated = (attrs.privateFlags & 729 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 730 731 if (fakeHwAccelerated) { 732 // This is exclusively for the preview windows the window manager 733 // shows for launching applications, so they will look more like 734 // the app being launched. 735 mAttachInfo.mHardwareAccelerationRequested = true; 736 } else if (!HardwareRenderer.sRendererDisabled 737 || (HardwareRenderer.sSystemRendererDisabled && forceHwAccelerated)) { 738 if (mAttachInfo.mHardwareRenderer != null) { 739 mAttachInfo.mHardwareRenderer.destroy(); 740 } 741 742 final Rect insets = attrs.surfaceInsets; 743 final boolean hasSurfaceInsets = insets.left != 0 || insets.right != 0 744 || insets.top != 0 || insets.bottom != 0; 745 final boolean translucent = attrs.format != PixelFormat.OPAQUE || hasSurfaceInsets; 746 mAttachInfo.mHardwareRenderer = HardwareRenderer.create(mContext, translucent); 747 if (mAttachInfo.mHardwareRenderer != null) { 748 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 749 mAttachInfo.mHardwareAccelerated = 750 mAttachInfo.mHardwareAccelerationRequested = true; 751 } 752 } 753 } 754 } 755 756 public View getView() { 757 return mView; 758 } 759 760 final WindowLeaked getLocation() { 761 return mLocation; 762 } 763 764 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 765 synchronized (this) { 766 final int oldInsetLeft = mWindowAttributes.surfaceInsets.left; 767 final int oldInsetTop = mWindowAttributes.surfaceInsets.top; 768 final int oldInsetRight = mWindowAttributes.surfaceInsets.right; 769 final int oldInsetBottom = mWindowAttributes.surfaceInsets.bottom; 770 final int oldSoftInputMode = mWindowAttributes.softInputMode; 771 final boolean oldHasManualSurfaceInsets = mWindowAttributes.hasManualSurfaceInsets; 772 773 // Keep track of the actual window flags supplied by the client. 774 mClientWindowLayoutFlags = attrs.flags; 775 776 // Preserve compatible window flag if exists. 777 final int compatibleWindowFlag = mWindowAttributes.privateFlags 778 & WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 779 780 // Transfer over system UI visibility values as they carry current state. 781 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 782 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 783 784 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 785 if ((mWindowAttributesChangesFlag 786 & WindowManager.LayoutParams.TRANSLUCENT_FLAGS_CHANGED) != 0) { 787 // Recompute system ui visibility. 788 mAttachInfo.mRecomputeGlobalAttributes = true; 789 } 790 if (mWindowAttributes.packageName == null) { 791 mWindowAttributes.packageName = mBasePackageName; 792 } 793 mWindowAttributes.privateFlags |= compatibleWindowFlag; 794 795 // Restore old surface insets. 796 mWindowAttributes.surfaceInsets.set( 797 oldInsetLeft, oldInsetTop, oldInsetRight, oldInsetBottom); 798 mWindowAttributes.hasManualSurfaceInsets = oldHasManualSurfaceInsets; 799 800 applyKeepScreenOnFlag(mWindowAttributes); 801 802 if (newView) { 803 mSoftInputMode = attrs.softInputMode; 804 requestLayout(); 805 } 806 807 // Don't lose the mode we last auto-computed. 808 if ((attrs.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 809 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 810 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 811 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 812 | (oldSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 813 } 814 815 mWindowAttributesChanged = true; 816 scheduleTraversals(); 817 } 818 } 819 820 void handleAppVisibility(boolean visible) { 821 if (mAppVisible != visible) { 822 mAppVisible = visible; 823 scheduleTraversals(); 824 if (!mAppVisible) { 825 WindowManagerGlobal.trimForeground(); 826 } 827 } 828 } 829 830 void handleGetNewSurface() { 831 mNewSurfaceNeeded = true; 832 mFullRedrawNeeded = true; 833 scheduleTraversals(); 834 } 835 836 private final DisplayListener mDisplayListener = new DisplayListener() { 837 @Override 838 public void onDisplayChanged(int displayId) { 839 if (mView != null && mDisplay.getDisplayId() == displayId) { 840 final int oldDisplayState = mAttachInfo.mDisplayState; 841 final int newDisplayState = mDisplay.getState(); 842 if (oldDisplayState != newDisplayState) { 843 mAttachInfo.mDisplayState = newDisplayState; 844 pokeDrawLockIfNeeded(); 845 if (oldDisplayState != Display.STATE_UNKNOWN) { 846 final int oldScreenState = toViewScreenState(oldDisplayState); 847 final int newScreenState = toViewScreenState(newDisplayState); 848 if (oldScreenState != newScreenState) { 849 mView.dispatchScreenStateChanged(newScreenState); 850 } 851 if (oldDisplayState == Display.STATE_OFF) { 852 // Draw was suppressed so we need to for it to happen here. 853 mFullRedrawNeeded = true; 854 scheduleTraversals(); 855 } 856 } 857 } 858 } 859 } 860 861 @Override 862 public void onDisplayRemoved(int displayId) { 863 } 864 865 @Override 866 public void onDisplayAdded(int displayId) { 867 } 868 869 private int toViewScreenState(int displayState) { 870 return displayState == Display.STATE_OFF ? 871 View.SCREEN_STATE_OFF : View.SCREEN_STATE_ON; 872 } 873 }; 874 875 void pokeDrawLockIfNeeded() { 876 final int displayState = mAttachInfo.mDisplayState; 877 if (mView != null && mAdded && mTraversalScheduled 878 && (displayState == Display.STATE_DOZE 879 || displayState == Display.STATE_DOZE_SUSPEND)) { 880 try { 881 mWindowSession.pokeDrawLock(mWindow); 882 } catch (RemoteException ex) { 883 // System server died, oh well. 884 } 885 } 886 } 887 888 @Override 889 public void requestFitSystemWindows() { 890 checkThread(); 891 mApplyInsetsRequested = true; 892 scheduleTraversals(); 893 } 894 895 @Override 896 public void requestLayout() { 897 if (!mHandlingLayoutInLayoutRequest) { 898 checkThread(); 899 mLayoutRequested = true; 900 scheduleTraversals(); 901 } 902 } 903 904 @Override 905 public boolean isLayoutRequested() { 906 return mLayoutRequested; 907 } 908 909 void invalidate() { 910 mDirty.set(0, 0, mWidth, mHeight); 911 if (!mWillDrawSoon) { 912 scheduleTraversals(); 913 } 914 } 915 916 void invalidateWorld(View view) { 917 view.invalidate(); 918 if (view instanceof ViewGroup) { 919 ViewGroup parent = (ViewGroup) view; 920 for (int i = 0; i < parent.getChildCount(); i++) { 921 invalidateWorld(parent.getChildAt(i)); 922 } 923 } 924 } 925 926 @Override 927 public void invalidateChild(View child, Rect dirty) { 928 invalidateChildInParent(null, dirty); 929 } 930 931 @Override 932 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 933 checkThread(); 934 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 935 936 if (dirty == null) { 937 invalidate(); 938 return null; 939 } else if (dirty.isEmpty() && !mIsAnimating) { 940 return null; 941 } 942 943 if (mCurScrollY != 0 || mTranslator != null) { 944 mTempRect.set(dirty); 945 dirty = mTempRect; 946 if (mCurScrollY != 0) { 947 dirty.offset(0, -mCurScrollY); 948 } 949 if (mTranslator != null) { 950 mTranslator.translateRectInAppWindowToScreen(dirty); 951 } 952 if (mAttachInfo.mScalingRequired) { 953 dirty.inset(-1, -1); 954 } 955 } 956 957 final Rect localDirty = mDirty; 958 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 959 mAttachInfo.mSetIgnoreDirtyState = true; 960 mAttachInfo.mIgnoreDirtyState = true; 961 } 962 963 // Add the new dirty rect to the current one 964 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 965 // Intersect with the bounds of the window to skip 966 // updates that lie outside of the visible region 967 final float appScale = mAttachInfo.mApplicationScale; 968 final boolean intersected = localDirty.intersect(0, 0, 969 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 970 if (!intersected) { 971 localDirty.setEmpty(); 972 } 973 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 974 scheduleTraversals(); 975 } 976 977 return null; 978 } 979 980 void setStopped(boolean stopped) { 981 if (mStopped != stopped) { 982 mStopped = stopped; 983 if (!stopped) { 984 scheduleTraversals(); 985 } 986 } 987 } 988 989 @Override 990 public ViewParent getParent() { 991 return null; 992 } 993 994 @Override 995 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 996 if (child != mView) { 997 throw new RuntimeException("child is not mine, honest!"); 998 } 999 // Note: don't apply scroll offset, because we want to know its 1000 // visibility in the virtual canvas being given to the view hierarchy. 1001 return r.intersect(0, 0, mWidth, mHeight); 1002 } 1003 1004 @Override 1005 public void bringChildToFront(View child) { 1006 } 1007 1008 int getHostVisibility() { 1009 return mAppVisible ? mView.getVisibility() : View.GONE; 1010 } 1011 1012 void disposeResizeBuffer() { 1013 if (mResizeBuffer != null) { 1014 mResizeBuffer.destroy(); 1015 mResizeBuffer = null; 1016 } 1017 } 1018 1019 /** 1020 * Add LayoutTransition to the list of transitions to be started in the next traversal. 1021 * This list will be cleared after the transitions on the list are start()'ed. These 1022 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 1023 * happens during the layout phase of traversal, which we want to complete before any of the 1024 * animations are started (because those animations may side-effect properties that layout 1025 * depends upon, like the bounding rectangles of the affected views). So we add the transition 1026 * to the list and it is started just prior to starting the drawing phase of traversal. 1027 * 1028 * @param transition The LayoutTransition to be started on the next traversal. 1029 * 1030 * @hide 1031 */ 1032 public void requestTransitionStart(LayoutTransition transition) { 1033 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 1034 if (mPendingTransitions == null) { 1035 mPendingTransitions = new ArrayList<LayoutTransition>(); 1036 } 1037 mPendingTransitions.add(transition); 1038 } 1039 } 1040 1041 /** 1042 * Notifies the HardwareRenderer that a new frame will be coming soon. 1043 * Currently only {@link ThreadedRenderer} cares about this, and uses 1044 * this knowledge to adjust the scheduling of off-thread animations 1045 */ 1046 void notifyRendererOfFramePending() { 1047 if (mAttachInfo.mHardwareRenderer != null) { 1048 mAttachInfo.mHardwareRenderer.notifyFramePending(); 1049 } 1050 } 1051 1052 void scheduleTraversals() { 1053 if (!mTraversalScheduled) { 1054 mTraversalScheduled = true; 1055 mTraversalBarrier = mHandler.getLooper().getQueue().postSyncBarrier(); 1056 mChoreographer.postCallback( 1057 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1058 if (!mUnbufferedInputDispatch) { 1059 scheduleConsumeBatchedInput(); 1060 } 1061 notifyRendererOfFramePending(); 1062 pokeDrawLockIfNeeded(); 1063 } 1064 } 1065 1066 void unscheduleTraversals() { 1067 if (mTraversalScheduled) { 1068 mTraversalScheduled = false; 1069 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1070 mChoreographer.removeCallbacks( 1071 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1072 } 1073 } 1074 1075 void doTraversal() { 1076 if (mTraversalScheduled) { 1077 mTraversalScheduled = false; 1078 mHandler.getLooper().getQueue().removeSyncBarrier(mTraversalBarrier); 1079 1080 if (mProfile) { 1081 Debug.startMethodTracing("ViewAncestor"); 1082 } 1083 1084 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1085 try { 1086 performTraversals(); 1087 } finally { 1088 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1089 } 1090 1091 if (mProfile) { 1092 Debug.stopMethodTracing(); 1093 mProfile = false; 1094 } 1095 } 1096 } 1097 1098 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1099 // Update window's global keep screen on flag: if a view has requested 1100 // that the screen be kept on, then it is always set; otherwise, it is 1101 // set to whatever the client last requested for the global state. 1102 if (mAttachInfo.mKeepScreenOn) { 1103 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1104 } else { 1105 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1106 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1107 } 1108 } 1109 1110 private boolean collectViewAttributes() { 1111 if (mAttachInfo.mRecomputeGlobalAttributes) { 1112 //Log.i(TAG, "Computing view hierarchy attributes!"); 1113 mAttachInfo.mRecomputeGlobalAttributes = false; 1114 boolean oldScreenOn = mAttachInfo.mKeepScreenOn; 1115 mAttachInfo.mKeepScreenOn = false; 1116 mAttachInfo.mSystemUiVisibility = 0; 1117 mAttachInfo.mHasSystemUiListeners = false; 1118 mView.dispatchCollectViewAttributes(mAttachInfo, 0); 1119 mAttachInfo.mSystemUiVisibility &= ~mAttachInfo.mDisabledSystemUiVisibility; 1120 WindowManager.LayoutParams params = mWindowAttributes; 1121 mAttachInfo.mSystemUiVisibility |= getImpliedSystemUiVisibility(params); 1122 if (mAttachInfo.mKeepScreenOn != oldScreenOn 1123 || mAttachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1124 || mAttachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1125 applyKeepScreenOnFlag(params); 1126 params.subtreeSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1127 params.hasSystemUiListeners = mAttachInfo.mHasSystemUiListeners; 1128 mView.dispatchWindowSystemUiVisiblityChanged(mAttachInfo.mSystemUiVisibility); 1129 return true; 1130 } 1131 } 1132 return false; 1133 } 1134 1135 private int getImpliedSystemUiVisibility(WindowManager.LayoutParams params) { 1136 int vis = 0; 1137 // Translucent decor window flags imply stable system ui visibility. 1138 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) != 0) { 1139 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN; 1140 } 1141 if ((params.flags & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) != 0) { 1142 vis |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 1143 } 1144 return vis; 1145 } 1146 1147 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1148 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1149 int childWidthMeasureSpec; 1150 int childHeightMeasureSpec; 1151 boolean windowSizeMayChange = false; 1152 1153 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1154 "Measuring " + host + " in display " + desiredWindowWidth 1155 + "x" + desiredWindowHeight + "..."); 1156 1157 boolean goodMeasure = false; 1158 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1159 // On large screens, we don't want to allow dialogs to just 1160 // stretch to fill the entire width of the screen to display 1161 // one line of text. First try doing the layout at a smaller 1162 // size to see if it will fit. 1163 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1164 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1165 int baseSize = 0; 1166 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1167 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1168 } 1169 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1170 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1171 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1172 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1173 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1174 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1175 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1176 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1177 goodMeasure = true; 1178 } else { 1179 // Didn't fit in that size... try expanding a bit. 1180 baseSize = (baseSize+desiredWindowWidth)/2; 1181 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1182 + baseSize); 1183 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1184 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1185 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1186 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1187 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1188 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1189 goodMeasure = true; 1190 } 1191 } 1192 } 1193 } 1194 1195 if (!goodMeasure) { 1196 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1197 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1198 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1199 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1200 windowSizeMayChange = true; 1201 } 1202 } 1203 1204 if (DBG) { 1205 System.out.println("======================================"); 1206 System.out.println("performTraversals -- after measure"); 1207 host.debug(); 1208 } 1209 1210 return windowSizeMayChange; 1211 } 1212 1213 /** 1214 * Modifies the input matrix such that it maps view-local coordinates to 1215 * on-screen coordinates. 1216 * 1217 * @param m input matrix to modify 1218 */ 1219 void transformMatrixToGlobal(Matrix m) { 1220 m.preTranslate(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 1221 } 1222 1223 /** 1224 * Modifies the input matrix such that it maps on-screen coordinates to 1225 * view-local coordinates. 1226 * 1227 * @param m input matrix to modify 1228 */ 1229 void transformMatrixToLocal(Matrix m) { 1230 m.postTranslate(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 1231 } 1232 1233 /* package */ WindowInsets getWindowInsets(boolean forceConstruct) { 1234 if (mLastWindowInsets == null || forceConstruct) { 1235 mDispatchContentInsets.set(mAttachInfo.mContentInsets); 1236 mDispatchStableInsets.set(mAttachInfo.mStableInsets); 1237 Rect contentInsets = mDispatchContentInsets; 1238 Rect stableInsets = mDispatchStableInsets; 1239 // For dispatch we preserve old logic, but for direct requests from Views we allow to 1240 // immediately use pending insets. 1241 if (!forceConstruct 1242 && (!mPendingContentInsets.equals(contentInsets) || 1243 !mPendingStableInsets.equals(stableInsets))) { 1244 contentInsets = mPendingContentInsets; 1245 stableInsets = mPendingStableInsets; 1246 } 1247 mLastWindowInsets = new WindowInsets(contentInsets, 1248 null /* windowDecorInsets */, stableInsets, mWindowIsRound); 1249 } 1250 return mLastWindowInsets; 1251 } 1252 1253 void dispatchApplyInsets(View host) { 1254 host.dispatchApplyWindowInsets(getWindowInsets(true /* forceConstruct */)); 1255 } 1256 1257 private void performTraversals() { 1258 // cache mView since it is used so much below... 1259 final View host = mView; 1260 1261 if (DBG) { 1262 System.out.println("======================================"); 1263 System.out.println("performTraversals"); 1264 host.debug(); 1265 } 1266 1267 if (host == null || !mAdded) 1268 return; 1269 1270 mIsInTraversal = true; 1271 mWillDrawSoon = true; 1272 boolean windowSizeMayChange = false; 1273 boolean newSurface = false; 1274 boolean surfaceChanged = false; 1275 WindowManager.LayoutParams lp = mWindowAttributes; 1276 1277 int desiredWindowWidth; 1278 int desiredWindowHeight; 1279 1280 final int viewVisibility = getHostVisibility(); 1281 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1282 || mNewSurfaceNeeded; 1283 1284 WindowManager.LayoutParams params = null; 1285 if (mWindowAttributesChanged) { 1286 mWindowAttributesChanged = false; 1287 surfaceChanged = true; 1288 params = lp; 1289 } 1290 CompatibilityInfo compatibilityInfo = mDisplayAdjustments.getCompatibilityInfo(); 1291 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1292 params = lp; 1293 mFullRedrawNeeded = true; 1294 mLayoutRequested = true; 1295 if (mLastInCompatMode) { 1296 params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1297 mLastInCompatMode = false; 1298 } else { 1299 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW; 1300 mLastInCompatMode = true; 1301 } 1302 } 1303 1304 mWindowAttributesChangesFlag = 0; 1305 1306 Rect frame = mWinFrame; 1307 if (mFirst) { 1308 mFullRedrawNeeded = true; 1309 mLayoutRequested = true; 1310 1311 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1312 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1313 // NOTE -- system code, won't try to do compat mode. 1314 Point size = new Point(); 1315 mDisplay.getRealSize(size); 1316 desiredWindowWidth = size.x; 1317 desiredWindowHeight = size.y; 1318 } else { 1319 DisplayMetrics packageMetrics = 1320 mView.getContext().getResources().getDisplayMetrics(); 1321 desiredWindowWidth = packageMetrics.widthPixels; 1322 desiredWindowHeight = packageMetrics.heightPixels; 1323 } 1324 1325 // We used to use the following condition to choose 32 bits drawing caches: 1326 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1327 // However, windows are now always 32 bits by default, so choose 32 bits 1328 mAttachInfo.mUse32BitDrawingCache = true; 1329 mAttachInfo.mHasWindowFocus = false; 1330 mAttachInfo.mWindowVisibility = viewVisibility; 1331 mAttachInfo.mRecomputeGlobalAttributes = false; 1332 viewVisibilityChanged = false; 1333 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1334 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1335 // Set the layout direction if it has not been set before (inherit is the default) 1336 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1337 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1338 } 1339 host.dispatchAttachedToWindow(mAttachInfo, 0); 1340 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1341 dispatchApplyInsets(host); 1342 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1343 1344 } else { 1345 desiredWindowWidth = frame.width(); 1346 desiredWindowHeight = frame.height(); 1347 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1348 if (DEBUG_ORIENTATION) Log.v(TAG, 1349 "View " + host + " resized to: " + frame); 1350 mFullRedrawNeeded = true; 1351 mLayoutRequested = true; 1352 windowSizeMayChange = true; 1353 } 1354 } 1355 1356 if (viewVisibilityChanged) { 1357 mAttachInfo.mWindowVisibility = viewVisibility; 1358 host.dispatchWindowVisibilityChanged(viewVisibility); 1359 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1360 destroyHardwareResources(); 1361 } 1362 if (viewVisibility == View.GONE) { 1363 // After making a window gone, we will count it as being 1364 // shown for the first time the next time it gets focus. 1365 mHasHadWindowFocus = false; 1366 } 1367 } 1368 1369 // Non-visible windows can't hold accessibility focus. 1370 if (mAttachInfo.mWindowVisibility != View.VISIBLE) { 1371 host.clearAccessibilityFocus(); 1372 } 1373 1374 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1375 getRunQueue().executeActions(mAttachInfo.mHandler); 1376 1377 boolean insetsChanged = false; 1378 1379 boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw); 1380 if (layoutRequested) { 1381 1382 final Resources res = mView.getContext().getResources(); 1383 1384 if (mFirst) { 1385 // make sure touch mode code executes by setting cached value 1386 // to opposite of the added touch mode. 1387 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1388 ensureTouchModeLocally(mAddedTouchMode); 1389 } else { 1390 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1391 insetsChanged = true; 1392 } 1393 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1394 insetsChanged = true; 1395 } 1396 if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) { 1397 insetsChanged = true; 1398 } 1399 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1400 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1401 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1402 + mAttachInfo.mVisibleInsets); 1403 } 1404 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1405 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1406 windowSizeMayChange = true; 1407 1408 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL 1409 || lp.type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) { 1410 // NOTE -- system code, won't try to do compat mode. 1411 Point size = new Point(); 1412 mDisplay.getRealSize(size); 1413 desiredWindowWidth = size.x; 1414 desiredWindowHeight = size.y; 1415 } else { 1416 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1417 desiredWindowWidth = packageMetrics.widthPixels; 1418 desiredWindowHeight = packageMetrics.heightPixels; 1419 } 1420 } 1421 } 1422 1423 // Ask host how big it wants to be 1424 windowSizeMayChange |= measureHierarchy(host, lp, res, 1425 desiredWindowWidth, desiredWindowHeight); 1426 } 1427 1428 if (collectViewAttributes()) { 1429 params = lp; 1430 } 1431 if (mAttachInfo.mForceReportNewAttributes) { 1432 mAttachInfo.mForceReportNewAttributes = false; 1433 params = lp; 1434 } 1435 1436 if (mFirst || mAttachInfo.mViewVisibilityChanged) { 1437 mAttachInfo.mViewVisibilityChanged = false; 1438 int resizeMode = mSoftInputMode & 1439 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1440 // If we are in auto resize mode, then we need to determine 1441 // what mode to use now. 1442 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1443 final int N = mAttachInfo.mScrollContainers.size(); 1444 for (int i=0; i<N; i++) { 1445 if (mAttachInfo.mScrollContainers.get(i).isShown()) { 1446 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1447 } 1448 } 1449 if (resizeMode == 0) { 1450 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1451 } 1452 if ((lp.softInputMode & 1453 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1454 lp.softInputMode = (lp.softInputMode & 1455 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1456 resizeMode; 1457 params = lp; 1458 } 1459 } 1460 } 1461 1462 if (params != null) { 1463 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1464 if (!PixelFormat.formatHasAlpha(params.format)) { 1465 params.format = PixelFormat.TRANSLUCENT; 1466 } 1467 } 1468 mAttachInfo.mOverscanRequested = (params.flags 1469 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1470 } 1471 1472 if (mApplyInsetsRequested) { 1473 mApplyInsetsRequested = false; 1474 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1475 dispatchApplyInsets(host); 1476 if (mLayoutRequested) { 1477 // Short-circuit catching a new layout request here, so 1478 // we don't need to go through two layout passes when things 1479 // change due to fitting system windows, which can happen a lot. 1480 windowSizeMayChange |= measureHierarchy(host, lp, 1481 mView.getContext().getResources(), 1482 desiredWindowWidth, desiredWindowHeight); 1483 } 1484 } 1485 1486 if (layoutRequested) { 1487 // Clear this now, so that if anything requests a layout in the 1488 // rest of this function we will catch it and re-run a full 1489 // layout pass. 1490 mLayoutRequested = false; 1491 } 1492 1493 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1494 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1495 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1496 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1497 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1498 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1499 1500 // Determine whether to compute insets. 1501 // If there are no inset listeners remaining then we may still need to compute 1502 // insets in case the old insets were non-empty and must be reset. 1503 final boolean computesInternalInsets = 1504 mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() 1505 || mAttachInfo.mHasNonEmptyGivenInternalInsets; 1506 1507 boolean insetsPending = false; 1508 int relayoutResult = 0; 1509 1510 if (mFirst || windowShouldResize || insetsChanged || 1511 viewVisibilityChanged || params != null) { 1512 1513 if (viewVisibility == View.VISIBLE) { 1514 // If this window is giving internal insets to the window 1515 // manager, and it is being added or changing its visibility, 1516 // then we want to first give the window manager "fake" 1517 // insets to cause it to effectively ignore the content of 1518 // the window during layout. This avoids it briefly causing 1519 // other windows to resize/move based on the raw frame of the 1520 // window, waiting until we can finish laying out this window 1521 // and get back to the window manager with the ultimately 1522 // computed insets. 1523 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1524 } 1525 1526 if (mSurfaceHolder != null) { 1527 mSurfaceHolder.mSurfaceLock.lock(); 1528 mDrawingAllowed = true; 1529 } 1530 1531 boolean hwInitialized = false; 1532 boolean contentInsetsChanged = false; 1533 boolean hadSurface = mSurface.isValid(); 1534 1535 try { 1536 if (DEBUG_LAYOUT) { 1537 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1538 host.getMeasuredHeight() + ", params=" + params); 1539 } 1540 1541 if (mAttachInfo.mHardwareRenderer != null) { 1542 // relayoutWindow may decide to destroy mSurface. As that decision 1543 // happens in WindowManager service, we need to be defensive here 1544 // and stop using the surface in case it gets destroyed. 1545 if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) { 1546 // Animations were running so we need to push a frame 1547 // to resume them 1548 mDirty.set(0, 0, mWidth, mHeight); 1549 } 1550 mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED); 1551 } 1552 final int surfaceGenerationId = mSurface.getGenerationId(); 1553 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1554 if (!mDrawDuringWindowsAnimating && 1555 (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1556 mWindowsAnimating = true; 1557 } 1558 1559 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1560 + " overscan=" + mPendingOverscanInsets.toShortString() 1561 + " content=" + mPendingContentInsets.toShortString() 1562 + " visible=" + mPendingVisibleInsets.toShortString() 1563 + " visible=" + mPendingStableInsets.toShortString() 1564 + " surface=" + mSurface); 1565 1566 if (mPendingConfiguration.seq != 0) { 1567 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1568 + mPendingConfiguration); 1569 updateConfiguration(mPendingConfiguration, !mFirst); 1570 mPendingConfiguration.seq = 0; 1571 } 1572 1573 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1574 mAttachInfo.mOverscanInsets); 1575 contentInsetsChanged = !mPendingContentInsets.equals( 1576 mAttachInfo.mContentInsets); 1577 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1578 mAttachInfo.mVisibleInsets); 1579 final boolean stableInsetsChanged = !mPendingStableInsets.equals( 1580 mAttachInfo.mStableInsets); 1581 if (contentInsetsChanged) { 1582 if (mWidth > 0 && mHeight > 0 && lp != null && 1583 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1584 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1585 mSurface != null && mSurface.isValid() && 1586 !mAttachInfo.mTurnOffWindowResizeAnim && 1587 mAttachInfo.mHardwareRenderer != null && 1588 mAttachInfo.mHardwareRenderer.isEnabled() && 1589 lp != null && !PixelFormat.formatHasAlpha(lp.format) 1590 && !mBlockResizeBuffer) { 1591 1592 disposeResizeBuffer(); 1593 1594// TODO: Again.... 1595// if (mResizeBuffer == null) { 1596// mResizeBuffer = mAttachInfo.mHardwareRenderer.createDisplayListLayer( 1597// mWidth, mHeight); 1598// } 1599// mResizeBuffer.prepare(mWidth, mHeight, false); 1600// RenderNode layerRenderNode = mResizeBuffer.startRecording(); 1601// HardwareCanvas layerCanvas = layerRenderNode.start(mWidth, mHeight); 1602// try { 1603// final int restoreCount = layerCanvas.save(); 1604// 1605// int yoff; 1606// final boolean scrolling = mScroller != null 1607// && mScroller.computeScrollOffset(); 1608// if (scrolling) { 1609// yoff = mScroller.getCurrY(); 1610// mScroller.abortAnimation(); 1611// } else { 1612// yoff = mScrollY; 1613// } 1614// 1615// layerCanvas.translate(0, -yoff); 1616// if (mTranslator != null) { 1617// mTranslator.translateCanvas(layerCanvas); 1618// } 1619// 1620// RenderNode renderNode = mView.mRenderNode; 1621// if (renderNode != null && renderNode.isValid()) { 1622// layerCanvas.drawDisplayList(renderNode, null, 1623// RenderNode.FLAG_CLIP_CHILDREN); 1624// } else { 1625// mView.draw(layerCanvas); 1626// } 1627// 1628// drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1629// 1630// mResizeBufferStartTime = SystemClock.uptimeMillis(); 1631// mResizeBufferDuration = mView.getResources().getInteger( 1632// com.android.internal.R.integer.config_mediumAnimTime); 1633// 1634// layerCanvas.restoreToCount(restoreCount); 1635// layerRenderNode.end(layerCanvas); 1636// layerRenderNode.setCaching(true); 1637// layerRenderNode.setLeftTopRightBottom(0, 0, mWidth, mHeight); 1638// mTempRect.set(0, 0, mWidth, mHeight); 1639// } finally { 1640// mResizeBuffer.endRecording(mTempRect); 1641// } 1642// mAttachInfo.mHardwareRenderer.flushLayerUpdates(); 1643 } 1644 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1645 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1646 + mAttachInfo.mContentInsets); 1647 } 1648 if (overscanInsetsChanged) { 1649 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1650 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1651 + mAttachInfo.mOverscanInsets); 1652 // Need to relayout with content insets. 1653 contentInsetsChanged = true; 1654 } 1655 if (stableInsetsChanged) { 1656 mAttachInfo.mStableInsets.set(mPendingStableInsets); 1657 if (DEBUG_LAYOUT) Log.v(TAG, "Decor insets changing to: " 1658 + mAttachInfo.mStableInsets); 1659 // Need to relayout with content insets. 1660 contentInsetsChanged = true; 1661 } 1662 if (contentInsetsChanged || mLastSystemUiVisibility != 1663 mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested 1664 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1665 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1666 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1667 mApplyInsetsRequested = false; 1668 dispatchApplyInsets(host); 1669 } 1670 if (visibleInsetsChanged) { 1671 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1672 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1673 + mAttachInfo.mVisibleInsets); 1674 } 1675 1676 if (!hadSurface) { 1677 if (mSurface.isValid()) { 1678 // If we are creating a new surface, then we need to 1679 // completely redraw it. Also, when we get to the 1680 // point of drawing it we will hold off and schedule 1681 // a new traversal instead. This is so we can tell the 1682 // window manager about all of the windows being displayed 1683 // before actually drawing them, so it can display then 1684 // all at once. 1685 newSurface = true; 1686 mFullRedrawNeeded = true; 1687 mPreviousTransparentRegion.setEmpty(); 1688 1689 if (mAttachInfo.mHardwareRenderer != null) { 1690 try { 1691 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1692 mSurface); 1693 } catch (OutOfResourcesException e) { 1694 handleOutOfResourcesException(e); 1695 return; 1696 } 1697 } 1698 } 1699 } else if (!mSurface.isValid()) { 1700 // If the surface has been removed, then reset the scroll 1701 // positions. 1702 if (mLastScrolledFocus != null) { 1703 mLastScrolledFocus.clear(); 1704 } 1705 mScrollY = mCurScrollY = 0; 1706 if (mView instanceof RootViewSurfaceTaker) { 1707 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 1708 } 1709 if (mScroller != null) { 1710 mScroller.abortAnimation(); 1711 } 1712 disposeResizeBuffer(); 1713 // Our surface is gone 1714 if (mAttachInfo.mHardwareRenderer != null && 1715 mAttachInfo.mHardwareRenderer.isEnabled()) { 1716 mAttachInfo.mHardwareRenderer.destroy(); 1717 } 1718 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1719 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1720 mFullRedrawNeeded = true; 1721 try { 1722 mAttachInfo.mHardwareRenderer.updateSurface(mSurface); 1723 } catch (OutOfResourcesException e) { 1724 handleOutOfResourcesException(e); 1725 return; 1726 } 1727 } 1728 } catch (RemoteException e) { 1729 } 1730 1731 if (DEBUG_ORIENTATION) Log.v( 1732 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1733 1734 mAttachInfo.mWindowLeft = frame.left; 1735 mAttachInfo.mWindowTop = frame.top; 1736 1737 // !!FIXME!! This next section handles the case where we did not get the 1738 // window size we asked for. We should avoid this by getting a maximum size from 1739 // the window session beforehand. 1740 if (mWidth != frame.width() || mHeight != frame.height()) { 1741 mWidth = frame.width(); 1742 mHeight = frame.height(); 1743 } 1744 1745 if (mSurfaceHolder != null) { 1746 // The app owns the surface; tell it about what is going on. 1747 if (mSurface.isValid()) { 1748 // XXX .copyFrom() doesn't work! 1749 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1750 mSurfaceHolder.mSurface = mSurface; 1751 } 1752 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1753 mSurfaceHolder.mSurfaceLock.unlock(); 1754 if (mSurface.isValid()) { 1755 if (!hadSurface) { 1756 mSurfaceHolder.ungetCallbacks(); 1757 1758 mIsCreating = true; 1759 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1760 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1761 if (callbacks != null) { 1762 for (SurfaceHolder.Callback c : callbacks) { 1763 c.surfaceCreated(mSurfaceHolder); 1764 } 1765 } 1766 surfaceChanged = true; 1767 } 1768 if (surfaceChanged) { 1769 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1770 lp.format, mWidth, mHeight); 1771 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1772 if (callbacks != null) { 1773 for (SurfaceHolder.Callback c : callbacks) { 1774 c.surfaceChanged(mSurfaceHolder, lp.format, 1775 mWidth, mHeight); 1776 } 1777 } 1778 } 1779 mIsCreating = false; 1780 } else if (hadSurface) { 1781 mSurfaceHolder.ungetCallbacks(); 1782 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1783 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1784 if (callbacks != null) { 1785 for (SurfaceHolder.Callback c : callbacks) { 1786 c.surfaceDestroyed(mSurfaceHolder); 1787 } 1788 } 1789 mSurfaceHolder.mSurfaceLock.lock(); 1790 try { 1791 mSurfaceHolder.mSurface = new Surface(); 1792 } finally { 1793 mSurfaceHolder.mSurfaceLock.unlock(); 1794 } 1795 } 1796 } 1797 1798 if (mAttachInfo.mHardwareRenderer != null && 1799 mAttachInfo.mHardwareRenderer.isEnabled()) { 1800 if (hwInitialized || 1801 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1802 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1803 mAttachInfo.mHardwareRenderer.setup( 1804 mWidth, mHeight, mWindowAttributes.surfaceInsets); 1805 if (!hwInitialized) { 1806 mAttachInfo.mHardwareRenderer.invalidate(mSurface); 1807 mFullRedrawNeeded = true; 1808 } 1809 } 1810 } 1811 1812 if (!mStopped || mReportNextDraw) { 1813 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1814 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1815 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1816 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1817 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1818 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1819 1820 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1821 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1822 + " mHeight=" + mHeight 1823 + " measuredHeight=" + host.getMeasuredHeight() 1824 + " coveredInsetsChanged=" + contentInsetsChanged); 1825 1826 // Ask host how big it wants to be 1827 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1828 1829 // Implementation of weights from WindowManager.LayoutParams 1830 // We just grow the dimensions as needed and re-measure if 1831 // needs be 1832 int width = host.getMeasuredWidth(); 1833 int height = host.getMeasuredHeight(); 1834 boolean measureAgain = false; 1835 1836 if (lp.horizontalWeight > 0.0f) { 1837 width += (int) ((mWidth - width) * lp.horizontalWeight); 1838 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1839 MeasureSpec.EXACTLY); 1840 measureAgain = true; 1841 } 1842 if (lp.verticalWeight > 0.0f) { 1843 height += (int) ((mHeight - height) * lp.verticalWeight); 1844 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1845 MeasureSpec.EXACTLY); 1846 measureAgain = true; 1847 } 1848 1849 if (measureAgain) { 1850 if (DEBUG_LAYOUT) Log.v(TAG, 1851 "And hey let's measure once more: width=" + width 1852 + " height=" + height); 1853 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1854 } 1855 1856 layoutRequested = true; 1857 } 1858 } 1859 } else { 1860 // Not the first pass and no window/insets/visibility change but the window 1861 // may have moved and we need check that and if so to update the left and right 1862 // in the attach info. We translate only the window frame since on window move 1863 // the window manager tells us only for the new frame but the insets are the 1864 // same and we do not want to translate them more than once. 1865 1866 // TODO: Well, we are checking whether the frame has changed similarly 1867 // to how this is done for the insets. This is however incorrect since 1868 // the insets and the frame are translated. For example, the old frame 1869 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1870 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1871 // true since we are comparing a not translated value to a translated one. 1872 // This scenario is rare but we may want to fix that. 1873 1874 final boolean windowMoved = (mAttachInfo.mWindowLeft != frame.left 1875 || mAttachInfo.mWindowTop != frame.top); 1876 if (windowMoved) { 1877 if (mTranslator != null) { 1878 mTranslator.translateRectInScreenToAppWinFrame(frame); 1879 } 1880 mAttachInfo.mWindowLeft = frame.left; 1881 mAttachInfo.mWindowTop = frame.top; 1882 } 1883 } 1884 1885 final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw); 1886 boolean triggerGlobalLayoutListener = didLayout 1887 || mAttachInfo.mRecomputeGlobalAttributes; 1888 if (didLayout) { 1889 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1890 1891 // By this point all views have been sized and positioned 1892 // We can compute the transparent area 1893 1894 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1895 // start out transparent 1896 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1897 host.getLocationInWindow(mTmpLocation); 1898 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1899 mTmpLocation[0] + host.mRight - host.mLeft, 1900 mTmpLocation[1] + host.mBottom - host.mTop); 1901 1902 host.gatherTransparentRegion(mTransparentRegion); 1903 if (mTranslator != null) { 1904 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1905 } 1906 1907 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1908 mPreviousTransparentRegion.set(mTransparentRegion); 1909 mFullRedrawNeeded = true; 1910 // reconfigure window manager 1911 try { 1912 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1913 } catch (RemoteException e) { 1914 } 1915 } 1916 } 1917 1918 if (DBG) { 1919 System.out.println("======================================"); 1920 System.out.println("performTraversals -- after setFrame"); 1921 host.debug(); 1922 } 1923 } 1924 1925 if (triggerGlobalLayoutListener) { 1926 mAttachInfo.mRecomputeGlobalAttributes = false; 1927 mAttachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1928 } 1929 1930 if (computesInternalInsets) { 1931 // Clear the original insets. 1932 final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets; 1933 insets.reset(); 1934 1935 // Compute new insets in place. 1936 mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1937 mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty(); 1938 1939 // Tell the window manager. 1940 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1941 mLastGivenInsets.set(insets); 1942 1943 // Translate insets to screen coordinates if needed. 1944 final Rect contentInsets; 1945 final Rect visibleInsets; 1946 final Region touchableRegion; 1947 if (mTranslator != null) { 1948 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1949 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1950 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1951 } else { 1952 contentInsets = insets.contentInsets; 1953 visibleInsets = insets.visibleInsets; 1954 touchableRegion = insets.touchableRegion; 1955 } 1956 1957 try { 1958 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1959 contentInsets, visibleInsets, touchableRegion); 1960 } catch (RemoteException e) { 1961 } 1962 } 1963 } 1964 1965 boolean skipDraw = false; 1966 1967 if (mFirst) { 1968 // handle first focus request 1969 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1970 + mView.hasFocus()); 1971 if (mView != null) { 1972 if (!mView.hasFocus()) { 1973 mView.requestFocus(View.FOCUS_FORWARD); 1974 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1975 + mView.findFocus()); 1976 } else { 1977 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1978 + mView.findFocus()); 1979 } 1980 } 1981 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1982 // The first time we relayout the window, if the system is 1983 // doing window animations, we want to hold of on any future 1984 // draws until the animation is done. 1985 mWindowsAnimating = true; 1986 } 1987 } else if (mWindowsAnimating) { 1988 skipDraw = true; 1989 } 1990 1991 mFirst = false; 1992 mWillDrawSoon = false; 1993 mNewSurfaceNeeded = false; 1994 mViewVisibility = viewVisibility; 1995 1996 if (mAttachInfo.mHasWindowFocus && !isInLocalFocusMode()) { 1997 final boolean imTarget = WindowManager.LayoutParams 1998 .mayUseInputMethod(mWindowAttributes.flags); 1999 if (imTarget != mLastWasImTarget) { 2000 mLastWasImTarget = imTarget; 2001 InputMethodManager imm = InputMethodManager.peekInstance(); 2002 if (imm != null && imTarget) { 2003 imm.startGettingWindowFocus(mView); 2004 imm.onWindowFocus(mView, mView.findFocus(), 2005 mWindowAttributes.softInputMode, 2006 !mHasHadWindowFocus, mWindowAttributes.flags); 2007 } 2008 } 2009 } 2010 2011 // Remember if we must report the next draw. 2012 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 2013 mReportNextDraw = true; 2014 } 2015 2016 boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || 2017 viewVisibility != View.VISIBLE; 2018 2019 if (!cancelDraw && !newSurface) { 2020 if (!skipDraw || mReportNextDraw) { 2021 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2022 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2023 mPendingTransitions.get(i).startChangingAnimations(); 2024 } 2025 mPendingTransitions.clear(); 2026 } 2027 2028 performDraw(); 2029 } 2030 } else { 2031 if (viewVisibility == View.VISIBLE) { 2032 // Try again 2033 scheduleTraversals(); 2034 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 2035 for (int i = 0; i < mPendingTransitions.size(); ++i) { 2036 mPendingTransitions.get(i).endChangingAnimations(); 2037 } 2038 mPendingTransitions.clear(); 2039 } 2040 } 2041 2042 mIsInTraversal = false; 2043 } 2044 2045 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 2046 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 2047 try { 2048 if (!mWindowSession.outOfMemory(mWindow) && 2049 Process.myUid() != Process.SYSTEM_UID) { 2050 Slog.w(TAG, "No processes killed for memory; killing self"); 2051 Process.killProcess(Process.myPid()); 2052 } 2053 } catch (RemoteException ex) { 2054 } 2055 mLayoutRequested = true; // ask wm for a new surface next time. 2056 } 2057 2058 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 2059 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 2060 try { 2061 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 2062 } finally { 2063 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2064 } 2065 } 2066 2067 /** 2068 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 2069 * is currently undergoing a layout pass. 2070 * 2071 * @return whether the view hierarchy is currently undergoing a layout pass 2072 */ 2073 boolean isInLayout() { 2074 return mInLayout; 2075 } 2076 2077 /** 2078 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 2079 * undergoing a layout pass. requestLayout() should not generally be called during layout, 2080 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 2081 * all children in that container hierarchy are measured and laid out at the end of the layout 2082 * pass for that container). If requestLayout() is called anyway, we handle it correctly 2083 * by registering all requesters during a frame as it proceeds. At the end of the frame, 2084 * we check all of those views to see if any still have pending layout requests, which 2085 * indicates that they were not correctly handled by their container hierarchy. If that is 2086 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 2087 * to blank containers, and force a second request/measure/layout pass in this frame. If 2088 * more requestLayout() calls are received during that second layout pass, we post those 2089 * requests to the next frame to avoid possible infinite loops. 2090 * 2091 * <p>The return value from this method indicates whether the request should proceed 2092 * (if it is a request during the first layout pass) or should be skipped and posted to the 2093 * next frame (if it is a request during the second layout pass).</p> 2094 * 2095 * @param view the view that requested the layout. 2096 * 2097 * @return true if request should proceed, false otherwise. 2098 */ 2099 boolean requestLayoutDuringLayout(final View view) { 2100 if (view.mParent == null || view.mAttachInfo == null) { 2101 // Would not normally trigger another layout, so just let it pass through as usual 2102 return true; 2103 } 2104 if (!mLayoutRequesters.contains(view)) { 2105 mLayoutRequesters.add(view); 2106 } 2107 if (!mHandlingLayoutInLayoutRequest) { 2108 // Let the request proceed normally; it will be processed in a second layout pass 2109 // if necessary 2110 return true; 2111 } else { 2112 // Don't let the request proceed during the second layout pass. 2113 // It will post to the next frame instead. 2114 return false; 2115 } 2116 } 2117 2118 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 2119 int desiredWindowHeight) { 2120 mLayoutRequested = false; 2121 mScrollMayChange = true; 2122 mInLayout = true; 2123 2124 final View host = mView; 2125 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 2126 Log.v(TAG, "Laying out " + host + " to (" + 2127 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 2128 } 2129 2130 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 2131 try { 2132 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2133 2134 mInLayout = false; 2135 int numViewsRequestingLayout = mLayoutRequesters.size(); 2136 if (numViewsRequestingLayout > 0) { 2137 // requestLayout() was called during layout. 2138 // If no layout-request flags are set on the requesting views, there is no problem. 2139 // If some requests are still pending, then we need to clear those flags and do 2140 // a full request/measure/layout pass to handle this situation. 2141 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 2142 false); 2143 if (validLayoutRequesters != null) { 2144 // Set this flag to indicate that any further requests are happening during 2145 // the second pass, which may result in posting those requests to the next 2146 // frame instead 2147 mHandlingLayoutInLayoutRequest = true; 2148 2149 // Process fresh layout requests, then measure and layout 2150 int numValidRequests = validLayoutRequesters.size(); 2151 for (int i = 0; i < numValidRequests; ++i) { 2152 final View view = validLayoutRequesters.get(i); 2153 Log.w("View", "requestLayout() improperly called by " + view + 2154 " during layout: running second layout pass"); 2155 view.requestLayout(); 2156 } 2157 measureHierarchy(host, lp, mView.getContext().getResources(), 2158 desiredWindowWidth, desiredWindowHeight); 2159 mInLayout = true; 2160 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2161 2162 mHandlingLayoutInLayoutRequest = false; 2163 2164 // Check the valid requests again, this time without checking/clearing the 2165 // layout flags, since requests happening during the second pass get noop'd 2166 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2167 if (validLayoutRequesters != null) { 2168 final ArrayList<View> finalRequesters = validLayoutRequesters; 2169 // Post second-pass requests to the next frame 2170 getRunQueue().post(new Runnable() { 2171 @Override 2172 public void run() { 2173 int numValidRequests = finalRequesters.size(); 2174 for (int i = 0; i < numValidRequests; ++i) { 2175 final View view = finalRequesters.get(i); 2176 Log.w("View", "requestLayout() improperly called by " + view + 2177 " during second layout pass: posting in next frame"); 2178 view.requestLayout(); 2179 } 2180 } 2181 }); 2182 } 2183 } 2184 2185 } 2186 } finally { 2187 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2188 } 2189 mInLayout = false; 2190 } 2191 2192 /** 2193 * This method is called during layout when there have been calls to requestLayout() during 2194 * layout. It walks through the list of views that requested layout to determine which ones 2195 * still need it, based on visibility in the hierarchy and whether they have already been 2196 * handled (as is usually the case with ListView children). 2197 * 2198 * @param layoutRequesters The list of views that requested layout during layout 2199 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2200 * If so, the FORCE_LAYOUT flag was not set on requesters. 2201 * @return A list of the actual views that still need to be laid out. 2202 */ 2203 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2204 boolean secondLayoutRequests) { 2205 2206 int numViewsRequestingLayout = layoutRequesters.size(); 2207 ArrayList<View> validLayoutRequesters = null; 2208 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2209 View view = layoutRequesters.get(i); 2210 if (view != null && view.mAttachInfo != null && view.mParent != null && 2211 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2212 View.PFLAG_FORCE_LAYOUT)) { 2213 boolean gone = false; 2214 View parent = view; 2215 // Only trigger new requests for views in a non-GONE hierarchy 2216 while (parent != null) { 2217 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2218 gone = true; 2219 break; 2220 } 2221 if (parent.mParent instanceof View) { 2222 parent = (View) parent.mParent; 2223 } else { 2224 parent = null; 2225 } 2226 } 2227 if (!gone) { 2228 if (validLayoutRequesters == null) { 2229 validLayoutRequesters = new ArrayList<View>(); 2230 } 2231 validLayoutRequesters.add(view); 2232 } 2233 } 2234 } 2235 if (!secondLayoutRequests) { 2236 // If we're checking the layout flags, then we need to clean them up also 2237 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2238 View view = layoutRequesters.get(i); 2239 while (view != null && 2240 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2241 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2242 if (view.mParent instanceof View) { 2243 view = (View) view.mParent; 2244 } else { 2245 view = null; 2246 } 2247 } 2248 } 2249 } 2250 layoutRequesters.clear(); 2251 return validLayoutRequesters; 2252 } 2253 2254 @Override 2255 public void requestTransparentRegion(View child) { 2256 // the test below should not fail unless someone is messing with us 2257 checkThread(); 2258 if (mView == child) { 2259 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2260 // Need to make sure we re-evaluate the window attributes next 2261 // time around, to ensure the window has the correct format. 2262 mWindowAttributesChanged = true; 2263 mWindowAttributesChangesFlag = 0; 2264 requestLayout(); 2265 } 2266 } 2267 2268 /** 2269 * Figures out the measure spec for the root view in a window based on it's 2270 * layout params. 2271 * 2272 * @param windowSize 2273 * The available width or height of the window 2274 * 2275 * @param rootDimension 2276 * The layout params for one dimension (width or height) of the 2277 * window. 2278 * 2279 * @return The measure spec to use to measure the root view. 2280 */ 2281 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2282 int measureSpec; 2283 switch (rootDimension) { 2284 2285 case ViewGroup.LayoutParams.MATCH_PARENT: 2286 // Window can't resize. Force root view to be windowSize. 2287 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2288 break; 2289 case ViewGroup.LayoutParams.WRAP_CONTENT: 2290 // Window can resize. Set max size for root view. 2291 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2292 break; 2293 default: 2294 // Window wants to be an exact size. Force root view to be that size. 2295 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2296 break; 2297 } 2298 return measureSpec; 2299 } 2300 2301 int mHardwareXOffset; 2302 int mHardwareYOffset; 2303 int mResizeAlpha; 2304 final Paint mResizePaint = new Paint(); 2305 2306 @Override 2307 public void onHardwarePreDraw(DisplayListCanvas canvas) { 2308 canvas.translate(-mHardwareXOffset, -mHardwareYOffset); 2309 } 2310 2311 @Override 2312 public void onHardwarePostDraw(DisplayListCanvas canvas) { 2313 if (mResizeBuffer != null) { 2314 mResizePaint.setAlpha(mResizeAlpha); 2315 canvas.drawHardwareLayer(mResizeBuffer, mHardwareXOffset, mHardwareYOffset, 2316 mResizePaint); 2317 } 2318 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2319 } 2320 2321 /** 2322 * @hide 2323 */ 2324 void outputDisplayList(View view) { 2325 RenderNode renderNode = view.getDisplayList(); 2326 if (renderNode != null) { 2327 renderNode.output(); 2328 } 2329 } 2330 2331 /** 2332 * @see #PROPERTY_PROFILE_RENDERING 2333 */ 2334 private void profileRendering(boolean enabled) { 2335 if (mProfileRendering) { 2336 mRenderProfilingEnabled = enabled; 2337 2338 if (mRenderProfiler != null) { 2339 mChoreographer.removeFrameCallback(mRenderProfiler); 2340 } 2341 if (mRenderProfilingEnabled) { 2342 if (mRenderProfiler == null) { 2343 mRenderProfiler = new Choreographer.FrameCallback() { 2344 @Override 2345 public void doFrame(long frameTimeNanos) { 2346 mDirty.set(0, 0, mWidth, mHeight); 2347 scheduleTraversals(); 2348 if (mRenderProfilingEnabled) { 2349 mChoreographer.postFrameCallback(mRenderProfiler); 2350 } 2351 } 2352 }; 2353 } 2354 mChoreographer.postFrameCallback(mRenderProfiler); 2355 } else { 2356 mRenderProfiler = null; 2357 } 2358 } 2359 } 2360 2361 /** 2362 * Called from draw() when DEBUG_FPS is enabled 2363 */ 2364 private void trackFPS() { 2365 // Tracks frames per second drawn. First value in a series of draws may be bogus 2366 // because it down not account for the intervening idle time 2367 long nowTime = System.currentTimeMillis(); 2368 if (mFpsStartTime < 0) { 2369 mFpsStartTime = mFpsPrevTime = nowTime; 2370 mFpsNumFrames = 0; 2371 } else { 2372 ++mFpsNumFrames; 2373 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2374 long frameTime = nowTime - mFpsPrevTime; 2375 long totalTime = nowTime - mFpsStartTime; 2376 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2377 mFpsPrevTime = nowTime; 2378 if (totalTime > 1000) { 2379 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2380 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2381 mFpsStartTime = nowTime; 2382 mFpsNumFrames = 0; 2383 } 2384 } 2385 } 2386 2387 private void performDraw() { 2388 if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) { 2389 return; 2390 } 2391 2392 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2393 mFullRedrawNeeded = false; 2394 2395 mIsDrawing = true; 2396 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2397 try { 2398 draw(fullRedrawNeeded); 2399 } finally { 2400 mIsDrawing = false; 2401 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2402 } 2403 2404 // For whatever reason we didn't create a HardwareRenderer, end any 2405 // hardware animations that are now dangling 2406 if (mAttachInfo.mPendingAnimatingRenderNodes != null) { 2407 final int count = mAttachInfo.mPendingAnimatingRenderNodes.size(); 2408 for (int i = 0; i < count; i++) { 2409 mAttachInfo.mPendingAnimatingRenderNodes.get(i).endAllAnimators(); 2410 } 2411 mAttachInfo.mPendingAnimatingRenderNodes.clear(); 2412 } 2413 2414 if (mReportNextDraw) { 2415 mReportNextDraw = false; 2416 if (mAttachInfo.mHardwareRenderer != null) { 2417 mAttachInfo.mHardwareRenderer.fence(); 2418 } 2419 2420 if (LOCAL_LOGV) { 2421 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2422 } 2423 if (mSurfaceHolder != null && mSurface.isValid()) { 2424 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2425 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2426 if (callbacks != null) { 2427 for (SurfaceHolder.Callback c : callbacks) { 2428 if (c instanceof SurfaceHolder.Callback2) { 2429 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2430 mSurfaceHolder); 2431 } 2432 } 2433 } 2434 } 2435 try { 2436 mWindowSession.finishDrawing(mWindow); 2437 } catch (RemoteException e) { 2438 } 2439 } 2440 } 2441 2442 private void draw(boolean fullRedrawNeeded) { 2443 Surface surface = mSurface; 2444 if (!surface.isValid()) { 2445 return; 2446 } 2447 2448 if (DEBUG_FPS) { 2449 trackFPS(); 2450 } 2451 2452 if (!sFirstDrawComplete) { 2453 synchronized (sFirstDrawHandlers) { 2454 sFirstDrawComplete = true; 2455 final int count = sFirstDrawHandlers.size(); 2456 for (int i = 0; i< count; i++) { 2457 mHandler.post(sFirstDrawHandlers.get(i)); 2458 } 2459 } 2460 } 2461 2462 scrollToRectOrFocus(null, false); 2463 2464 if (mAttachInfo.mViewScrollChanged) { 2465 mAttachInfo.mViewScrollChanged = false; 2466 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 2467 } 2468 2469 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2470 final int curScrollY; 2471 if (animating) { 2472 curScrollY = mScroller.getCurrY(); 2473 } else { 2474 curScrollY = mScrollY; 2475 } 2476 if (mCurScrollY != curScrollY) { 2477 mCurScrollY = curScrollY; 2478 fullRedrawNeeded = true; 2479 if (mView instanceof RootViewSurfaceTaker) { 2480 ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY); 2481 } 2482 } 2483 2484 final float appScale = mAttachInfo.mApplicationScale; 2485 final boolean scalingRequired = mAttachInfo.mScalingRequired; 2486 2487 int resizeAlpha = 0; 2488 if (mResizeBuffer != null) { 2489 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2490 if (deltaTime < mResizeBufferDuration) { 2491 float amt = deltaTime/(float) mResizeBufferDuration; 2492 amt = mResizeInterpolator.getInterpolation(amt); 2493 animating = true; 2494 resizeAlpha = 255 - (int)(amt*255); 2495 } else { 2496 disposeResizeBuffer(); 2497 } 2498 } 2499 2500 final Rect dirty = mDirty; 2501 if (mSurfaceHolder != null) { 2502 // The app owns the surface, we won't draw. 2503 dirty.setEmpty(); 2504 if (animating) { 2505 if (mScroller != null) { 2506 mScroller.abortAnimation(); 2507 } 2508 disposeResizeBuffer(); 2509 } 2510 return; 2511 } 2512 2513 if (fullRedrawNeeded) { 2514 mAttachInfo.mIgnoreDirtyState = true; 2515 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2516 } 2517 2518 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2519 Log.v(TAG, "Draw " + mView + "/" 2520 + mWindowAttributes.getTitle() 2521 + ": dirty={" + dirty.left + "," + dirty.top 2522 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2523 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2524 appScale + ", width=" + mWidth + ", height=" + mHeight); 2525 } 2526 2527 mAttachInfo.mTreeObserver.dispatchOnDraw(); 2528 2529 int xOffset = 0; 2530 int yOffset = curScrollY; 2531 final WindowManager.LayoutParams params = mWindowAttributes; 2532 final Rect surfaceInsets = params != null ? params.surfaceInsets : null; 2533 if (surfaceInsets != null) { 2534 xOffset -= surfaceInsets.left; 2535 yOffset -= surfaceInsets.top; 2536 2537 // Offset dirty rect for surface insets. 2538 dirty.offset(surfaceInsets.left, surfaceInsets.right); 2539 } 2540 2541 boolean accessibilityFocusDirty = false; 2542 final Drawable drawable = mAttachInfo.mAccessibilityFocusDrawable; 2543 if (drawable != null) { 2544 final Rect bounds = mAttachInfo.mTmpInvalRect; 2545 final boolean hasFocus = getAccessibilityFocusedRect(bounds); 2546 if (!hasFocus) { 2547 bounds.setEmpty(); 2548 } 2549 if (!bounds.equals(drawable.getBounds())) { 2550 accessibilityFocusDirty = true; 2551 } 2552 } 2553 2554 mAttachInfo.mDrawingTime = 2555 mChoreographer.getFrameTimeNanos() / TimeUtils.NANOS_PER_MS; 2556 2557 if (!dirty.isEmpty() || mIsAnimating || accessibilityFocusDirty) { 2558 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 2559 // If accessibility focus moved, always invalidate the root. 2560 boolean invalidateRoot = accessibilityFocusDirty; 2561 2562 // Draw with hardware renderer. 2563 mIsAnimating = false; 2564 2565 if (mHardwareYOffset != yOffset || mHardwareXOffset != xOffset) { 2566 mHardwareYOffset = yOffset; 2567 mHardwareXOffset = xOffset; 2568 invalidateRoot = true; 2569 } 2570 mResizeAlpha = resizeAlpha; 2571 2572 if (invalidateRoot) { 2573 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2574 } 2575 2576 dirty.setEmpty(); 2577 2578 mBlockResizeBuffer = false; 2579 mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this); 2580 } else { 2581 // If we get here with a disabled & requested hardware renderer, something went 2582 // wrong (an invalidate posted right before we destroyed the hardware surface 2583 // for instance) so we should just bail out. Locking the surface with software 2584 // rendering at this point would lock it forever and prevent hardware renderer 2585 // from doing its job when it comes back. 2586 // Before we request a new frame we must however attempt to reinitiliaze the 2587 // hardware renderer if it's in requested state. This would happen after an 2588 // eglTerminate() for instance. 2589 if (mAttachInfo.mHardwareRenderer != null && 2590 !mAttachInfo.mHardwareRenderer.isEnabled() && 2591 mAttachInfo.mHardwareRenderer.isRequested()) { 2592 2593 try { 2594 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2595 mWidth, mHeight, mSurface, surfaceInsets); 2596 } catch (OutOfResourcesException e) { 2597 handleOutOfResourcesException(e); 2598 return; 2599 } 2600 2601 mFullRedrawNeeded = true; 2602 scheduleTraversals(); 2603 return; 2604 } 2605 2606 if (!drawSoftware(surface, mAttachInfo, xOffset, yOffset, scalingRequired, dirty)) { 2607 return; 2608 } 2609 } 2610 } 2611 2612 if (animating) { 2613 mFullRedrawNeeded = true; 2614 scheduleTraversals(); 2615 } 2616 } 2617 2618 /** 2619 * @return true if drawing was successful, false if an error occurred 2620 */ 2621 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int xoff, int yoff, 2622 boolean scalingRequired, Rect dirty) { 2623 2624 // Draw with software renderer. 2625 final Canvas canvas; 2626 try { 2627 final int left = dirty.left; 2628 final int top = dirty.top; 2629 final int right = dirty.right; 2630 final int bottom = dirty.bottom; 2631 2632 canvas = mSurface.lockCanvas(dirty); 2633 2634 // The dirty rectangle can be modified by Surface.lockCanvas() 2635 //noinspection ConstantConditions 2636 if (left != dirty.left || top != dirty.top || right != dirty.right 2637 || bottom != dirty.bottom) { 2638 attachInfo.mIgnoreDirtyState = true; 2639 } 2640 2641 // TODO: Do this in native 2642 canvas.setDensity(mDensity); 2643 } catch (Surface.OutOfResourcesException e) { 2644 handleOutOfResourcesException(e); 2645 return false; 2646 } catch (IllegalArgumentException e) { 2647 Log.e(TAG, "Could not lock surface", e); 2648 // Don't assume this is due to out of memory, it could be 2649 // something else, and if it is something else then we could 2650 // kill stuff (or ourself) for no reason. 2651 mLayoutRequested = true; // ask wm for a new surface next time. 2652 return false; 2653 } 2654 2655 try { 2656 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2657 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2658 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2659 //canvas.drawARGB(255, 255, 0, 0); 2660 } 2661 2662 // If this bitmap's format includes an alpha channel, we 2663 // need to clear it before drawing so that the child will 2664 // properly re-composite its drawing on a transparent 2665 // background. This automatically respects the clip/dirty region 2666 // or 2667 // If we are applying an offset, we need to clear the area 2668 // where the offset doesn't appear to avoid having garbage 2669 // left in the blank areas. 2670 if (!canvas.isOpaque() || yoff != 0 || xoff != 0) { 2671 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2672 } 2673 2674 dirty.setEmpty(); 2675 mIsAnimating = false; 2676 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2677 2678 if (DEBUG_DRAW) { 2679 Context cxt = mView.getContext(); 2680 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2681 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2682 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2683 } 2684 try { 2685 canvas.translate(-xoff, -yoff); 2686 if (mTranslator != null) { 2687 mTranslator.translateCanvas(canvas); 2688 } 2689 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2690 attachInfo.mSetIgnoreDirtyState = false; 2691 2692 mView.draw(canvas); 2693 2694 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2695 } finally { 2696 if (!attachInfo.mSetIgnoreDirtyState) { 2697 // Only clear the flag if it was not set during the mView.draw() call 2698 attachInfo.mIgnoreDirtyState = false; 2699 } 2700 } 2701 } finally { 2702 try { 2703 surface.unlockCanvasAndPost(canvas); 2704 } catch (IllegalArgumentException e) { 2705 Log.e(TAG, "Could not unlock surface", e); 2706 mLayoutRequested = true; // ask wm for a new surface next time. 2707 //noinspection ReturnInsideFinallyBlock 2708 return false; 2709 } 2710 2711 if (LOCAL_LOGV) { 2712 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2713 } 2714 } 2715 return true; 2716 } 2717 2718 /** 2719 * We want to draw a highlight around the current accessibility focused. 2720 * Since adding a style for all possible view is not a viable option we 2721 * have this specialized drawing method. 2722 * 2723 * Note: We are doing this here to be able to draw the highlight for 2724 * virtual views in addition to real ones. 2725 * 2726 * @param canvas The canvas on which to draw. 2727 */ 2728 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2729 final Rect bounds = mAttachInfo.mTmpInvalRect; 2730 if (getAccessibilityFocusedRect(bounds)) { 2731 final Drawable drawable = getAccessibilityFocusedDrawable(); 2732 if (drawable != null) { 2733 drawable.setBounds(bounds); 2734 drawable.draw(canvas); 2735 } 2736 } else if (mAttachInfo.mAccessibilityFocusDrawable != null) { 2737 mAttachInfo.mAccessibilityFocusDrawable.setBounds(0, 0, 0, 0); 2738 } 2739 } 2740 2741 private boolean getAccessibilityFocusedRect(Rect bounds) { 2742 final AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2743 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2744 return false; 2745 } 2746 2747 final View host = mAccessibilityFocusedHost; 2748 if (host == null || host.mAttachInfo == null) { 2749 return false; 2750 } 2751 2752 final AccessibilityNodeProvider provider = host.getAccessibilityNodeProvider(); 2753 if (provider == null) { 2754 host.getBoundsOnScreen(bounds, true); 2755 } else if (mAccessibilityFocusedVirtualView != null) { 2756 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2757 } else { 2758 return false; 2759 } 2760 2761 final AttachInfo attachInfo = mAttachInfo; 2762 bounds.offset(-attachInfo.mWindowLeft, -attachInfo.mWindowTop); 2763 bounds.intersect(0, 0, attachInfo.mViewRootImpl.mWidth, attachInfo.mViewRootImpl.mHeight); 2764 return !bounds.isEmpty(); 2765 } 2766 2767 private Drawable getAccessibilityFocusedDrawable() { 2768 // Lazily load the accessibility focus drawable. 2769 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2770 final TypedValue value = new TypedValue(); 2771 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2772 R.attr.accessibilityFocusedDrawable, value, true); 2773 if (resolved) { 2774 mAttachInfo.mAccessibilityFocusDrawable = 2775 mView.mContext.getDrawable(value.resourceId); 2776 } 2777 } 2778 return mAttachInfo.mAccessibilityFocusDrawable; 2779 } 2780 2781 /** 2782 * @hide 2783 */ 2784 public void setDrawDuringWindowsAnimating(boolean value) { 2785 mDrawDuringWindowsAnimating = value; 2786 if (value) { 2787 handleDispatchDoneAnimating(); 2788 } 2789 } 2790 2791 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2792 final Rect ci = mAttachInfo.mContentInsets; 2793 final Rect vi = mAttachInfo.mVisibleInsets; 2794 int scrollY = 0; 2795 boolean handled = false; 2796 2797 if (vi.left > ci.left || vi.top > ci.top 2798 || vi.right > ci.right || vi.bottom > ci.bottom) { 2799 // We'll assume that we aren't going to change the scroll 2800 // offset, since we want to avoid that unless it is actually 2801 // going to make the focus visible... otherwise we scroll 2802 // all over the place. 2803 scrollY = mScrollY; 2804 // We can be called for two different situations: during a draw, 2805 // to update the scroll position if the focus has changed (in which 2806 // case 'rectangle' is null), or in response to a 2807 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2808 // is non-null and we just want to scroll to whatever that 2809 // rectangle is). 2810 final View focus = mView.findFocus(); 2811 if (focus == null) { 2812 return false; 2813 } 2814 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2815 if (focus != lastScrolledFocus) { 2816 // If the focus has changed, then ignore any requests to scroll 2817 // to a rectangle; first we want to make sure the entire focus 2818 // view is visible. 2819 rectangle = null; 2820 } 2821 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2822 + " rectangle=" + rectangle + " ci=" + ci 2823 + " vi=" + vi); 2824 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2825 // Optimization: if the focus hasn't changed since last 2826 // time, and no layout has happened, then just leave things 2827 // as they are. 2828 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2829 + mScrollY + " vi=" + vi.toShortString()); 2830 } else { 2831 // We need to determine if the currently focused view is 2832 // within the visible part of the window and, if not, apply 2833 // a pan so it can be seen. 2834 mLastScrolledFocus = new WeakReference<View>(focus); 2835 mScrollMayChange = false; 2836 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2837 // Try to find the rectangle from the focus view. 2838 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2839 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2840 + mView.getWidth() + " h=" + mView.getHeight() 2841 + " ci=" + ci.toShortString() 2842 + " vi=" + vi.toShortString()); 2843 if (rectangle == null) { 2844 focus.getFocusedRect(mTempRect); 2845 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2846 + ": focusRect=" + mTempRect.toShortString()); 2847 if (mView instanceof ViewGroup) { 2848 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2849 focus, mTempRect); 2850 } 2851 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2852 "Focus in window: focusRect=" 2853 + mTempRect.toShortString() 2854 + " visRect=" + mVisRect.toShortString()); 2855 } else { 2856 mTempRect.set(rectangle); 2857 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2858 "Request scroll to rect: " 2859 + mTempRect.toShortString() 2860 + " visRect=" + mVisRect.toShortString()); 2861 } 2862 if (mTempRect.intersect(mVisRect)) { 2863 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2864 "Focus window visible rect: " 2865 + mTempRect.toShortString()); 2866 if (mTempRect.height() > 2867 (mView.getHeight()-vi.top-vi.bottom)) { 2868 // If the focus simply is not going to fit, then 2869 // best is probably just to leave things as-is. 2870 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2871 "Too tall; leaving scrollY=" + scrollY); 2872 } else if ((mTempRect.top-scrollY) < vi.top) { 2873 scrollY -= vi.top - (mTempRect.top-scrollY); 2874 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2875 "Top covered; scrollY=" + scrollY); 2876 } else if ((mTempRect.bottom-scrollY) 2877 > (mView.getHeight()-vi.bottom)) { 2878 scrollY += (mTempRect.bottom-scrollY) 2879 - (mView.getHeight()-vi.bottom); 2880 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2881 "Bottom covered; scrollY=" + scrollY); 2882 } 2883 handled = true; 2884 } 2885 } 2886 } 2887 } 2888 2889 if (scrollY != mScrollY) { 2890 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2891 + mScrollY + " , new=" + scrollY); 2892 if (!immediate && mResizeBuffer == null) { 2893 if (mScroller == null) { 2894 mScroller = new Scroller(mView.getContext()); 2895 } 2896 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2897 } else if (mScroller != null) { 2898 mScroller.abortAnimation(); 2899 } 2900 mScrollY = scrollY; 2901 } 2902 2903 return handled; 2904 } 2905 2906 /** 2907 * @hide 2908 */ 2909 public View getAccessibilityFocusedHost() { 2910 return mAccessibilityFocusedHost; 2911 } 2912 2913 /** 2914 * @hide 2915 */ 2916 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2917 return mAccessibilityFocusedVirtualView; 2918 } 2919 2920 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2921 // If we have a virtual view with accessibility focus we need 2922 // to clear the focus and invalidate the virtual view bounds. 2923 if (mAccessibilityFocusedVirtualView != null) { 2924 2925 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2926 View focusHost = mAccessibilityFocusedHost; 2927 2928 // Wipe the state of the current accessibility focus since 2929 // the call into the provider to clear accessibility focus 2930 // will fire an accessibility event which will end up calling 2931 // this method and we want to have clean state when this 2932 // invocation happens. 2933 mAccessibilityFocusedHost = null; 2934 mAccessibilityFocusedVirtualView = null; 2935 2936 // Clear accessibility focus on the host after clearing state since 2937 // this method may be reentrant. 2938 focusHost.clearAccessibilityFocusNoCallbacks(); 2939 2940 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2941 if (provider != null) { 2942 // Invalidate the area of the cleared accessibility focus. 2943 focusNode.getBoundsInParent(mTempRect); 2944 focusHost.invalidate(mTempRect); 2945 // Clear accessibility focus in the virtual node. 2946 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2947 focusNode.getSourceNodeId()); 2948 provider.performAction(virtualNodeId, 2949 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2950 } 2951 focusNode.recycle(); 2952 } 2953 if (mAccessibilityFocusedHost != null) { 2954 // Clear accessibility focus in the view. 2955 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2956 } 2957 2958 // Set the new focus host and node. 2959 mAccessibilityFocusedHost = view; 2960 mAccessibilityFocusedVirtualView = node; 2961 2962 if (mAttachInfo.mHardwareRenderer != null) { 2963 mAttachInfo.mHardwareRenderer.invalidateRoot(); 2964 } 2965 } 2966 2967 @Override 2968 public void requestChildFocus(View child, View focused) { 2969 if (DEBUG_INPUT_RESIZE) { 2970 Log.v(TAG, "Request child focus: focus now " + focused); 2971 } 2972 checkThread(); 2973 scheduleTraversals(); 2974 } 2975 2976 @Override 2977 public void clearChildFocus(View child) { 2978 if (DEBUG_INPUT_RESIZE) { 2979 Log.v(TAG, "Clearing child focus"); 2980 } 2981 checkThread(); 2982 scheduleTraversals(); 2983 } 2984 2985 @Override 2986 public ViewParent getParentForAccessibility() { 2987 return null; 2988 } 2989 2990 @Override 2991 public void focusableViewAvailable(View v) { 2992 checkThread(); 2993 if (mView != null) { 2994 if (!mView.hasFocus()) { 2995 v.requestFocus(); 2996 } else { 2997 // the one case where will transfer focus away from the current one 2998 // is if the current view is a view group that prefers to give focus 2999 // to its children first AND the view is a descendant of it. 3000 View focused = mView.findFocus(); 3001 if (focused instanceof ViewGroup) { 3002 ViewGroup group = (ViewGroup) focused; 3003 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3004 && isViewDescendantOf(v, focused)) { 3005 v.requestFocus(); 3006 } 3007 } 3008 } 3009 } 3010 } 3011 3012 @Override 3013 public void recomputeViewAttributes(View child) { 3014 checkThread(); 3015 if (mView == child) { 3016 mAttachInfo.mRecomputeGlobalAttributes = true; 3017 if (!mWillDrawSoon) { 3018 scheduleTraversals(); 3019 } 3020 } 3021 } 3022 3023 void dispatchDetachedFromWindow() { 3024 if (mView != null && mView.mAttachInfo != null) { 3025 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 3026 mView.dispatchDetachedFromWindow(); 3027 } 3028 3029 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 3030 mAccessibilityManager.removeAccessibilityStateChangeListener( 3031 mAccessibilityInteractionConnectionManager); 3032 mAccessibilityManager.removeHighTextContrastStateChangeListener( 3033 mHighContrastTextManager); 3034 removeSendWindowContentChangedCallback(); 3035 3036 destroyHardwareRenderer(); 3037 3038 setAccessibilityFocus(null, null); 3039 3040 mView.assignParent(null); 3041 mView = null; 3042 mAttachInfo.mRootView = null; 3043 3044 mSurface.release(); 3045 3046 if (mInputQueueCallback != null && mInputQueue != null) { 3047 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 3048 mInputQueue.dispose(); 3049 mInputQueueCallback = null; 3050 mInputQueue = null; 3051 } 3052 if (mInputEventReceiver != null) { 3053 mInputEventReceiver.dispose(); 3054 mInputEventReceiver = null; 3055 } 3056 try { 3057 mWindowSession.remove(mWindow); 3058 } catch (RemoteException e) { 3059 } 3060 3061 // Dispose the input channel after removing the window so the Window Manager 3062 // doesn't interpret the input channel being closed as an abnormal termination. 3063 if (mInputChannel != null) { 3064 mInputChannel.dispose(); 3065 mInputChannel = null; 3066 } 3067 3068 mDisplayManager.unregisterDisplayListener(mDisplayListener); 3069 3070 unscheduleTraversals(); 3071 } 3072 3073 void updateConfiguration(Configuration config, boolean force) { 3074 if (DEBUG_CONFIGURATION) Log.v(TAG, 3075 "Applying new config to window " 3076 + mWindowAttributes.getTitle() 3077 + ": " + config); 3078 3079 CompatibilityInfo ci = mDisplayAdjustments.getCompatibilityInfo(); 3080 if (!ci.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) { 3081 config = new Configuration(config); 3082 ci.applyToConfiguration(mNoncompatDensity, config); 3083 } 3084 3085 synchronized (sConfigCallbacks) { 3086 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 3087 sConfigCallbacks.get(i).onConfigurationChanged(config); 3088 } 3089 } 3090 if (mView != null) { 3091 // At this point the resources have been updated to 3092 // have the most recent config, whatever that is. Use 3093 // the one in them which may be newer. 3094 config = mView.getResources().getConfiguration(); 3095 if (force || mLastConfiguration.diff(config) != 0) { 3096 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 3097 final int currentLayoutDirection = config.getLayoutDirection(); 3098 mLastConfiguration.setTo(config); 3099 if (lastLayoutDirection != currentLayoutDirection && 3100 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 3101 mView.setLayoutDirection(currentLayoutDirection); 3102 } 3103 mView.dispatchConfigurationChanged(config); 3104 } 3105 } 3106 } 3107 3108 /** 3109 * Return true if child is an ancestor of parent, (or equal to the parent). 3110 */ 3111 public static boolean isViewDescendantOf(View child, View parent) { 3112 if (child == parent) { 3113 return true; 3114 } 3115 3116 final ViewParent theParent = child.getParent(); 3117 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 3118 } 3119 3120 private final static int MSG_INVALIDATE = 1; 3121 private final static int MSG_INVALIDATE_RECT = 2; 3122 private final static int MSG_DIE = 3; 3123 private final static int MSG_RESIZED = 4; 3124 private final static int MSG_RESIZED_REPORT = 5; 3125 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 3126 private final static int MSG_DISPATCH_INPUT_EVENT = 7; 3127 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 3128 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 3129 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 3130 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 3131 private final static int MSG_CHECK_FOCUS = 13; 3132 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 3133 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 3134 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 3135 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 3136 private final static int MSG_UPDATE_CONFIGURATION = 18; 3137 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 3138 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 3139 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 3140 private final static int MSG_INVALIDATE_WORLD = 23; 3141 private final static int MSG_WINDOW_MOVED = 24; 3142 private final static int MSG_SYNTHESIZE_INPUT_EVENT = 25; 3143 private final static int MSG_DISPATCH_WINDOW_SHOWN = 26; 3144 3145 final class ViewRootHandler extends Handler { 3146 @Override 3147 public String getMessageName(Message message) { 3148 switch (message.what) { 3149 case MSG_INVALIDATE: 3150 return "MSG_INVALIDATE"; 3151 case MSG_INVALIDATE_RECT: 3152 return "MSG_INVALIDATE_RECT"; 3153 case MSG_DIE: 3154 return "MSG_DIE"; 3155 case MSG_RESIZED: 3156 return "MSG_RESIZED"; 3157 case MSG_RESIZED_REPORT: 3158 return "MSG_RESIZED_REPORT"; 3159 case MSG_WINDOW_FOCUS_CHANGED: 3160 return "MSG_WINDOW_FOCUS_CHANGED"; 3161 case MSG_DISPATCH_INPUT_EVENT: 3162 return "MSG_DISPATCH_INPUT_EVENT"; 3163 case MSG_DISPATCH_APP_VISIBILITY: 3164 return "MSG_DISPATCH_APP_VISIBILITY"; 3165 case MSG_DISPATCH_GET_NEW_SURFACE: 3166 return "MSG_DISPATCH_GET_NEW_SURFACE"; 3167 case MSG_DISPATCH_KEY_FROM_IME: 3168 return "MSG_DISPATCH_KEY_FROM_IME"; 3169 case MSG_FINISH_INPUT_CONNECTION: 3170 return "MSG_FINISH_INPUT_CONNECTION"; 3171 case MSG_CHECK_FOCUS: 3172 return "MSG_CHECK_FOCUS"; 3173 case MSG_CLOSE_SYSTEM_DIALOGS: 3174 return "MSG_CLOSE_SYSTEM_DIALOGS"; 3175 case MSG_DISPATCH_DRAG_EVENT: 3176 return "MSG_DISPATCH_DRAG_EVENT"; 3177 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 3178 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 3179 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 3180 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 3181 case MSG_UPDATE_CONFIGURATION: 3182 return "MSG_UPDATE_CONFIGURATION"; 3183 case MSG_PROCESS_INPUT_EVENTS: 3184 return "MSG_PROCESS_INPUT_EVENTS"; 3185 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 3186 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 3187 case MSG_DISPATCH_DONE_ANIMATING: 3188 return "MSG_DISPATCH_DONE_ANIMATING"; 3189 case MSG_WINDOW_MOVED: 3190 return "MSG_WINDOW_MOVED"; 3191 case MSG_SYNTHESIZE_INPUT_EVENT: 3192 return "MSG_SYNTHESIZE_INPUT_EVENT"; 3193 case MSG_DISPATCH_WINDOW_SHOWN: 3194 return "MSG_DISPATCH_WINDOW_SHOWN"; 3195 } 3196 return super.getMessageName(message); 3197 } 3198 3199 @Override 3200 public void handleMessage(Message msg) { 3201 switch (msg.what) { 3202 case MSG_INVALIDATE: 3203 ((View) msg.obj).invalidate(); 3204 break; 3205 case MSG_INVALIDATE_RECT: 3206 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3207 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3208 info.recycle(); 3209 break; 3210 case MSG_PROCESS_INPUT_EVENTS: 3211 mProcessInputEventsScheduled = false; 3212 doProcessInputEvents(); 3213 break; 3214 case MSG_DISPATCH_APP_VISIBILITY: 3215 handleAppVisibility(msg.arg1 != 0); 3216 break; 3217 case MSG_DISPATCH_GET_NEW_SURFACE: 3218 handleGetNewSurface(); 3219 break; 3220 case MSG_RESIZED: { 3221 // Recycled in the fall through... 3222 SomeArgs args = (SomeArgs) msg.obj; 3223 if (mWinFrame.equals(args.arg1) 3224 && mPendingOverscanInsets.equals(args.arg5) 3225 && mPendingContentInsets.equals(args.arg2) 3226 && mPendingStableInsets.equals(args.arg6) 3227 && mPendingVisibleInsets.equals(args.arg3) 3228 && args.arg4 == null) { 3229 break; 3230 } 3231 } // fall through... 3232 case MSG_RESIZED_REPORT: 3233 if (mAdded) { 3234 SomeArgs args = (SomeArgs) msg.obj; 3235 3236 Configuration config = (Configuration) args.arg4; 3237 if (config != null) { 3238 updateConfiguration(config, false); 3239 } 3240 3241 mWinFrame.set((Rect) args.arg1); 3242 mPendingOverscanInsets.set((Rect) args.arg5); 3243 mPendingContentInsets.set((Rect) args.arg2); 3244 mPendingStableInsets.set((Rect) args.arg6); 3245 mPendingVisibleInsets.set((Rect) args.arg3); 3246 3247 args.recycle(); 3248 3249 if (msg.what == MSG_RESIZED_REPORT) { 3250 mReportNextDraw = true; 3251 } 3252 3253 requestLayout(); 3254 } 3255 break; 3256 case MSG_WINDOW_MOVED: 3257 if (mAdded) { 3258 final int w = mWinFrame.width(); 3259 final int h = mWinFrame.height(); 3260 final int l = msg.arg1; 3261 final int t = msg.arg2; 3262 mWinFrame.left = l; 3263 mWinFrame.right = l + w; 3264 mWinFrame.top = t; 3265 mWinFrame.bottom = t + h; 3266 3267 requestLayout(); 3268 } 3269 break; 3270 case MSG_WINDOW_FOCUS_CHANGED: { 3271 if (mAdded) { 3272 boolean hasWindowFocus = msg.arg1 != 0; 3273 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3274 3275 profileRendering(hasWindowFocus); 3276 3277 if (hasWindowFocus) { 3278 boolean inTouchMode = msg.arg2 != 0; 3279 ensureTouchModeLocally(inTouchMode); 3280 3281 if (mAttachInfo.mHardwareRenderer != null && mSurface.isValid()){ 3282 mFullRedrawNeeded = true; 3283 try { 3284 final WindowManager.LayoutParams lp = mWindowAttributes; 3285 final Rect surfaceInsets = lp != null ? lp.surfaceInsets : null; 3286 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3287 mWidth, mHeight, mSurface, surfaceInsets); 3288 } catch (OutOfResourcesException e) { 3289 Log.e(TAG, "OutOfResourcesException locking surface", e); 3290 try { 3291 if (!mWindowSession.outOfMemory(mWindow)) { 3292 Slog.w(TAG, "No processes killed for memory; killing self"); 3293 Process.killProcess(Process.myPid()); 3294 } 3295 } catch (RemoteException ex) { 3296 } 3297 // Retry in a bit. 3298 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3299 return; 3300 } 3301 } 3302 } 3303 3304 mLastWasImTarget = WindowManager.LayoutParams 3305 .mayUseInputMethod(mWindowAttributes.flags); 3306 3307 InputMethodManager imm = InputMethodManager.peekInstance(); 3308 if (mView != null) { 3309 if (hasWindowFocus && imm != null && mLastWasImTarget && 3310 !isInLocalFocusMode()) { 3311 imm.startGettingWindowFocus(mView); 3312 } 3313 mAttachInfo.mKeyDispatchState.reset(); 3314 mView.dispatchWindowFocusChanged(hasWindowFocus); 3315 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3316 } 3317 3318 // Note: must be done after the focus change callbacks, 3319 // so all of the view state is set up correctly. 3320 if (hasWindowFocus) { 3321 if (imm != null && mLastWasImTarget && !isInLocalFocusMode()) { 3322 imm.onWindowFocus(mView, mView.findFocus(), 3323 mWindowAttributes.softInputMode, 3324 !mHasHadWindowFocus, mWindowAttributes.flags); 3325 } 3326 // Clear the forward bit. We can just do this directly, since 3327 // the window manager doesn't care about it. 3328 mWindowAttributes.softInputMode &= 3329 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3330 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3331 .softInputMode &= 3332 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3333 mHasHadWindowFocus = true; 3334 } 3335 3336 if (mView != null && mAccessibilityManager.isEnabled()) { 3337 if (hasWindowFocus) { 3338 mView.sendAccessibilityEvent( 3339 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3340 } 3341 } 3342 } 3343 } break; 3344 case MSG_DIE: 3345 doDie(); 3346 break; 3347 case MSG_DISPATCH_INPUT_EVENT: { 3348 SomeArgs args = (SomeArgs)msg.obj; 3349 InputEvent event = (InputEvent)args.arg1; 3350 InputEventReceiver receiver = (InputEventReceiver)args.arg2; 3351 enqueueInputEvent(event, receiver, 0, true); 3352 args.recycle(); 3353 } break; 3354 case MSG_SYNTHESIZE_INPUT_EVENT: { 3355 InputEvent event = (InputEvent)msg.obj; 3356 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_UNHANDLED, true); 3357 } break; 3358 case MSG_DISPATCH_KEY_FROM_IME: { 3359 if (LOCAL_LOGV) Log.v( 3360 TAG, "Dispatching key " 3361 + msg.obj + " from IME to " + mView); 3362 KeyEvent event = (KeyEvent)msg.obj; 3363 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3364 // The IME is trying to say this event is from the 3365 // system! Bad bad bad! 3366 //noinspection UnusedAssignment 3367 event = KeyEvent.changeFlags(event, event.getFlags() & 3368 ~KeyEvent.FLAG_FROM_SYSTEM); 3369 } 3370 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3371 } break; 3372 case MSG_FINISH_INPUT_CONNECTION: { 3373 InputMethodManager imm = InputMethodManager.peekInstance(); 3374 if (imm != null) { 3375 imm.reportFinishInputConnection((InputConnection)msg.obj); 3376 } 3377 } break; 3378 case MSG_CHECK_FOCUS: { 3379 InputMethodManager imm = InputMethodManager.peekInstance(); 3380 if (imm != null) { 3381 imm.checkFocus(); 3382 } 3383 } break; 3384 case MSG_CLOSE_SYSTEM_DIALOGS: { 3385 if (mView != null) { 3386 mView.onCloseSystemDialogs((String)msg.obj); 3387 } 3388 } break; 3389 case MSG_DISPATCH_DRAG_EVENT: 3390 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3391 DragEvent event = (DragEvent)msg.obj; 3392 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3393 handleDragEvent(event); 3394 } break; 3395 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3396 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3397 } break; 3398 case MSG_UPDATE_CONFIGURATION: { 3399 Configuration config = (Configuration)msg.obj; 3400 if (config.isOtherSeqNewer(mLastConfiguration)) { 3401 config = mLastConfiguration; 3402 } 3403 updateConfiguration(config, false); 3404 } break; 3405 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3406 setAccessibilityFocus(null, null); 3407 } break; 3408 case MSG_DISPATCH_DONE_ANIMATING: { 3409 handleDispatchDoneAnimating(); 3410 } break; 3411 case MSG_INVALIDATE_WORLD: { 3412 if (mView != null) { 3413 invalidateWorld(mView); 3414 } 3415 } break; 3416 case MSG_DISPATCH_WINDOW_SHOWN: { 3417 handleDispatchWindowShown(); 3418 } 3419 } 3420 } 3421 } 3422 3423 final ViewRootHandler mHandler = new ViewRootHandler(); 3424 3425 /** 3426 * Something in the current window tells us we need to change the touch mode. For 3427 * example, we are not in touch mode, and the user touches the screen. 3428 * 3429 * If the touch mode has changed, tell the window manager, and handle it locally. 3430 * 3431 * @param inTouchMode Whether we want to be in touch mode. 3432 * @return True if the touch mode changed and focus changed was changed as a result 3433 */ 3434 boolean ensureTouchMode(boolean inTouchMode) { 3435 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3436 + "touch mode is " + mAttachInfo.mInTouchMode); 3437 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3438 3439 // tell the window manager 3440 try { 3441 if (!isInLocalFocusMode()) { 3442 mWindowSession.setInTouchMode(inTouchMode); 3443 } 3444 } catch (RemoteException e) { 3445 throw new RuntimeException(e); 3446 } 3447 3448 // handle the change 3449 return ensureTouchModeLocally(inTouchMode); 3450 } 3451 3452 /** 3453 * Ensure that the touch mode for this window is set, and if it is changing, 3454 * take the appropriate action. 3455 * @param inTouchMode Whether we want to be in touch mode. 3456 * @return True if the touch mode changed and focus changed was changed as a result 3457 */ 3458 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3459 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3460 + "touch mode is " + mAttachInfo.mInTouchMode); 3461 3462 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3463 3464 mAttachInfo.mInTouchMode = inTouchMode; 3465 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3466 3467 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3468 } 3469 3470 private boolean enterTouchMode() { 3471 if (mView != null && mView.hasFocus()) { 3472 // note: not relying on mFocusedView here because this could 3473 // be when the window is first being added, and mFocused isn't 3474 // set yet. 3475 final View focused = mView.findFocus(); 3476 if (focused != null && !focused.isFocusableInTouchMode()) { 3477 final ViewGroup ancestorToTakeFocus = findAncestorToTakeFocusInTouchMode(focused); 3478 if (ancestorToTakeFocus != null) { 3479 // there is an ancestor that wants focus after its 3480 // descendants that is focusable in touch mode.. give it 3481 // focus 3482 return ancestorToTakeFocus.requestFocus(); 3483 } else { 3484 // There's nothing to focus. Clear and propagate through the 3485 // hierarchy, but don't attempt to place new focus. 3486 focused.clearFocusInternal(null, true, false); 3487 return true; 3488 } 3489 } 3490 } 3491 return false; 3492 } 3493 3494 /** 3495 * Find an ancestor of focused that wants focus after its descendants and is 3496 * focusable in touch mode. 3497 * @param focused The currently focused view. 3498 * @return An appropriate view, or null if no such view exists. 3499 */ 3500 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3501 ViewParent parent = focused.getParent(); 3502 while (parent instanceof ViewGroup) { 3503 final ViewGroup vgParent = (ViewGroup) parent; 3504 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3505 && vgParent.isFocusableInTouchMode()) { 3506 return vgParent; 3507 } 3508 if (vgParent.isRootNamespace()) { 3509 return null; 3510 } else { 3511 parent = vgParent.getParent(); 3512 } 3513 } 3514 return null; 3515 } 3516 3517 private boolean leaveTouchMode() { 3518 if (mView != null) { 3519 if (mView.hasFocus()) { 3520 View focusedView = mView.findFocus(); 3521 if (!(focusedView instanceof ViewGroup)) { 3522 // some view has focus, let it keep it 3523 return false; 3524 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3525 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3526 // some view group has focus, and doesn't prefer its children 3527 // over itself for focus, so let them keep it. 3528 return false; 3529 } 3530 } 3531 3532 // find the best view to give focus to in this brave new non-touch-mode 3533 // world 3534 final View focused = focusSearch(null, View.FOCUS_DOWN); 3535 if (focused != null) { 3536 return focused.requestFocus(View.FOCUS_DOWN); 3537 } 3538 } 3539 return false; 3540 } 3541 3542 /** 3543 * Base class for implementing a stage in the chain of responsibility 3544 * for processing input events. 3545 * <p> 3546 * Events are delivered to the stage by the {@link #deliver} method. The stage 3547 * then has the choice of finishing the event or forwarding it to the next stage. 3548 * </p> 3549 */ 3550 abstract class InputStage { 3551 private final InputStage mNext; 3552 3553 protected static final int FORWARD = 0; 3554 protected static final int FINISH_HANDLED = 1; 3555 protected static final int FINISH_NOT_HANDLED = 2; 3556 3557 /** 3558 * Creates an input stage. 3559 * @param next The next stage to which events should be forwarded. 3560 */ 3561 public InputStage(InputStage next) { 3562 mNext = next; 3563 } 3564 3565 /** 3566 * Delivers an event to be processed. 3567 */ 3568 public final void deliver(QueuedInputEvent q) { 3569 if ((q.mFlags & QueuedInputEvent.FLAG_FINISHED) != 0) { 3570 forward(q); 3571 } else if (shouldDropInputEvent(q)) { 3572 finish(q, false); 3573 } else { 3574 apply(q, onProcess(q)); 3575 } 3576 } 3577 3578 /** 3579 * Marks the the input event as finished then forwards it to the next stage. 3580 */ 3581 protected void finish(QueuedInputEvent q, boolean handled) { 3582 q.mFlags |= QueuedInputEvent.FLAG_FINISHED; 3583 if (handled) { 3584 q.mFlags |= QueuedInputEvent.FLAG_FINISHED_HANDLED; 3585 } 3586 forward(q); 3587 } 3588 3589 /** 3590 * Forwards the event to the next stage. 3591 */ 3592 protected void forward(QueuedInputEvent q) { 3593 onDeliverToNext(q); 3594 } 3595 3596 /** 3597 * Applies a result code from {@link #onProcess} to the specified event. 3598 */ 3599 protected void apply(QueuedInputEvent q, int result) { 3600 if (result == FORWARD) { 3601 forward(q); 3602 } else if (result == FINISH_HANDLED) { 3603 finish(q, true); 3604 } else if (result == FINISH_NOT_HANDLED) { 3605 finish(q, false); 3606 } else { 3607 throw new IllegalArgumentException("Invalid result: " + result); 3608 } 3609 } 3610 3611 /** 3612 * Called when an event is ready to be processed. 3613 * @return A result code indicating how the event was handled. 3614 */ 3615 protected int onProcess(QueuedInputEvent q) { 3616 return FORWARD; 3617 } 3618 3619 /** 3620 * Called when an event is being delivered to the next stage. 3621 */ 3622 protected void onDeliverToNext(QueuedInputEvent q) { 3623 if (DEBUG_INPUT_STAGES) { 3624 Log.v(TAG, "Done with " + getClass().getSimpleName() + ". " + q); 3625 } 3626 if (mNext != null) { 3627 mNext.deliver(q); 3628 } else { 3629 finishInputEvent(q); 3630 } 3631 } 3632 3633 protected boolean shouldDropInputEvent(QueuedInputEvent q) { 3634 if (mView == null || !mAdded) { 3635 Slog.w(TAG, "Dropping event due to root view being removed: " + q.mEvent); 3636 return true; 3637 } else if ((!mAttachInfo.mHasWindowFocus || mStopped) 3638 && !q.mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) { 3639 // This is a focus event and the window doesn't currently have input focus or 3640 // has stopped. This could be an event that came back from the previous stage 3641 // but the window has lost focus or stopped in the meantime. 3642 if (isTerminalInputEvent(q.mEvent)) { 3643 // Don't drop terminal input events, however mark them as canceled. 3644 q.mEvent.cancel(); 3645 Slog.w(TAG, "Cancelling event due to no window focus: " + q.mEvent); 3646 return false; 3647 } 3648 3649 // Drop non-terminal input events. 3650 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 3651 return true; 3652 } 3653 return false; 3654 } 3655 3656 void dump(String prefix, PrintWriter writer) { 3657 if (mNext != null) { 3658 mNext.dump(prefix, writer); 3659 } 3660 } 3661 } 3662 3663 /** 3664 * Base class for implementing an input pipeline stage that supports 3665 * asynchronous and out-of-order processing of input events. 3666 * <p> 3667 * In addition to what a normal input stage can do, an asynchronous 3668 * input stage may also defer an input event that has been delivered to it 3669 * and finish or forward it later. 3670 * </p> 3671 */ 3672 abstract class AsyncInputStage extends InputStage { 3673 private final String mTraceCounter; 3674 3675 private QueuedInputEvent mQueueHead; 3676 private QueuedInputEvent mQueueTail; 3677 private int mQueueLength; 3678 3679 protected static final int DEFER = 3; 3680 3681 /** 3682 * Creates an asynchronous input stage. 3683 * @param next The next stage to which events should be forwarded. 3684 * @param traceCounter The name of a counter to record the size of 3685 * the queue of pending events. 3686 */ 3687 public AsyncInputStage(InputStage next, String traceCounter) { 3688 super(next); 3689 mTraceCounter = traceCounter; 3690 } 3691 3692 /** 3693 * Marks the event as deferred, which is to say that it will be handled 3694 * asynchronously. The caller is responsible for calling {@link #forward} 3695 * or {@link #finish} later when it is done handling the event. 3696 */ 3697 protected void defer(QueuedInputEvent q) { 3698 q.mFlags |= QueuedInputEvent.FLAG_DEFERRED; 3699 enqueue(q); 3700 } 3701 3702 @Override 3703 protected void forward(QueuedInputEvent q) { 3704 // Clear the deferred flag. 3705 q.mFlags &= ~QueuedInputEvent.FLAG_DEFERRED; 3706 3707 // Fast path if the queue is empty. 3708 QueuedInputEvent curr = mQueueHead; 3709 if (curr == null) { 3710 super.forward(q); 3711 return; 3712 } 3713 3714 // Determine whether the event must be serialized behind any others 3715 // before it can be delivered to the next stage. This is done because 3716 // deferred events might be handled out of order by the stage. 3717 final int deviceId = q.mEvent.getDeviceId(); 3718 QueuedInputEvent prev = null; 3719 boolean blocked = false; 3720 while (curr != null && curr != q) { 3721 if (!blocked && deviceId == curr.mEvent.getDeviceId()) { 3722 blocked = true; 3723 } 3724 prev = curr; 3725 curr = curr.mNext; 3726 } 3727 3728 // If the event is blocked, then leave it in the queue to be delivered later. 3729 // Note that the event might not yet be in the queue if it was not previously 3730 // deferred so we will enqueue it if needed. 3731 if (blocked) { 3732 if (curr == null) { 3733 enqueue(q); 3734 } 3735 return; 3736 } 3737 3738 // The event is not blocked. Deliver it immediately. 3739 if (curr != null) { 3740 curr = curr.mNext; 3741 dequeue(q, prev); 3742 } 3743 super.forward(q); 3744 3745 // Dequeuing this event may have unblocked successors. Deliver them. 3746 while (curr != null) { 3747 if (deviceId == curr.mEvent.getDeviceId()) { 3748 if ((curr.mFlags & QueuedInputEvent.FLAG_DEFERRED) != 0) { 3749 break; 3750 } 3751 QueuedInputEvent next = curr.mNext; 3752 dequeue(curr, prev); 3753 super.forward(curr); 3754 curr = next; 3755 } else { 3756 prev = curr; 3757 curr = curr.mNext; 3758 } 3759 } 3760 } 3761 3762 @Override 3763 protected void apply(QueuedInputEvent q, int result) { 3764 if (result == DEFER) { 3765 defer(q); 3766 } else { 3767 super.apply(q, result); 3768 } 3769 } 3770 3771 private void enqueue(QueuedInputEvent q) { 3772 if (mQueueTail == null) { 3773 mQueueHead = q; 3774 mQueueTail = q; 3775 } else { 3776 mQueueTail.mNext = q; 3777 mQueueTail = q; 3778 } 3779 3780 mQueueLength += 1; 3781 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3782 } 3783 3784 private void dequeue(QueuedInputEvent q, QueuedInputEvent prev) { 3785 if (prev == null) { 3786 mQueueHead = q.mNext; 3787 } else { 3788 prev.mNext = q.mNext; 3789 } 3790 if (mQueueTail == q) { 3791 mQueueTail = prev; 3792 } 3793 q.mNext = null; 3794 3795 mQueueLength -= 1; 3796 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mTraceCounter, mQueueLength); 3797 } 3798 3799 @Override 3800 void dump(String prefix, PrintWriter writer) { 3801 writer.print(prefix); 3802 writer.print(getClass().getName()); 3803 writer.print(": mQueueLength="); 3804 writer.println(mQueueLength); 3805 3806 super.dump(prefix, writer); 3807 } 3808 } 3809 3810 /** 3811 * Delivers pre-ime input events to a native activity. 3812 * Does not support pointer events. 3813 */ 3814 final class NativePreImeInputStage extends AsyncInputStage 3815 implements InputQueue.FinishedInputEventCallback { 3816 public NativePreImeInputStage(InputStage next, String traceCounter) { 3817 super(next, traceCounter); 3818 } 3819 3820 @Override 3821 protected int onProcess(QueuedInputEvent q) { 3822 if (mInputQueue != null && q.mEvent instanceof KeyEvent) { 3823 mInputQueue.sendInputEvent(q.mEvent, q, true, this); 3824 return DEFER; 3825 } 3826 return FORWARD; 3827 } 3828 3829 @Override 3830 public void onFinishedInputEvent(Object token, boolean handled) { 3831 QueuedInputEvent q = (QueuedInputEvent)token; 3832 if (handled) { 3833 finish(q, true); 3834 return; 3835 } 3836 forward(q); 3837 } 3838 } 3839 3840 /** 3841 * Delivers pre-ime input events to the view hierarchy. 3842 * Does not support pointer events. 3843 */ 3844 final class ViewPreImeInputStage extends InputStage { 3845 public ViewPreImeInputStage(InputStage next) { 3846 super(next); 3847 } 3848 3849 @Override 3850 protected int onProcess(QueuedInputEvent q) { 3851 if (q.mEvent instanceof KeyEvent) { 3852 return processKeyEvent(q); 3853 } 3854 return FORWARD; 3855 } 3856 3857 private int processKeyEvent(QueuedInputEvent q) { 3858 final KeyEvent event = (KeyEvent)q.mEvent; 3859 if (mView.dispatchKeyEventPreIme(event)) { 3860 return FINISH_HANDLED; 3861 } 3862 return FORWARD; 3863 } 3864 } 3865 3866 /** 3867 * Delivers input events to the ime. 3868 * Does not support pointer events. 3869 */ 3870 final class ImeInputStage extends AsyncInputStage 3871 implements InputMethodManager.FinishedInputEventCallback { 3872 public ImeInputStage(InputStage next, String traceCounter) { 3873 super(next, traceCounter); 3874 } 3875 3876 @Override 3877 protected int onProcess(QueuedInputEvent q) { 3878 if (mLastWasImTarget && !isInLocalFocusMode()) { 3879 InputMethodManager imm = InputMethodManager.peekInstance(); 3880 if (imm != null) { 3881 final InputEvent event = q.mEvent; 3882 if (DEBUG_IMF) Log.v(TAG, "Sending input event to IME: " + event); 3883 int result = imm.dispatchInputEvent(event, q, this, mHandler); 3884 if (result == InputMethodManager.DISPATCH_HANDLED) { 3885 return FINISH_HANDLED; 3886 } else if (result == InputMethodManager.DISPATCH_NOT_HANDLED) { 3887 // The IME could not handle it, so skip along to the next InputStage 3888 return FORWARD; 3889 } else { 3890 return DEFER; // callback will be invoked later 3891 } 3892 } 3893 } 3894 return FORWARD; 3895 } 3896 3897 @Override 3898 public void onFinishedInputEvent(Object token, boolean handled) { 3899 QueuedInputEvent q = (QueuedInputEvent)token; 3900 if (handled) { 3901 finish(q, true); 3902 return; 3903 } 3904 forward(q); 3905 } 3906 } 3907 3908 /** 3909 * Performs early processing of post-ime input events. 3910 */ 3911 final class EarlyPostImeInputStage extends InputStage { 3912 public EarlyPostImeInputStage(InputStage next) { 3913 super(next); 3914 } 3915 3916 @Override 3917 protected int onProcess(QueuedInputEvent q) { 3918 if (q.mEvent instanceof KeyEvent) { 3919 return processKeyEvent(q); 3920 } else { 3921 final int source = q.mEvent.getSource(); 3922 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3923 return processPointerEvent(q); 3924 } 3925 } 3926 return FORWARD; 3927 } 3928 3929 private int processKeyEvent(QueuedInputEvent q) { 3930 final KeyEvent event = (KeyEvent)q.mEvent; 3931 3932 // If the key's purpose is to exit touch mode then we consume it 3933 // and consider it handled. 3934 if (checkForLeavingTouchModeAndConsume(event)) { 3935 return FINISH_HANDLED; 3936 } 3937 3938 // Make sure the fallback event policy sees all keys that will be 3939 // delivered to the view hierarchy. 3940 mFallbackEventHandler.preDispatchKeyEvent(event); 3941 return FORWARD; 3942 } 3943 3944 private int processPointerEvent(QueuedInputEvent q) { 3945 final MotionEvent event = (MotionEvent)q.mEvent; 3946 3947 // Translate the pointer event for compatibility, if needed. 3948 if (mTranslator != null) { 3949 mTranslator.translateEventInScreenToAppWindow(event); 3950 } 3951 3952 // Enter touch mode on down or scroll. 3953 final int action = event.getAction(); 3954 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3955 ensureTouchMode(true); 3956 } 3957 3958 // Offset the scroll position. 3959 if (mCurScrollY != 0) { 3960 event.offsetLocation(0, mCurScrollY); 3961 } 3962 3963 // Remember the touch position for possible drag-initiation. 3964 if (event.isTouchEvent()) { 3965 mLastTouchPoint.x = event.getRawX(); 3966 mLastTouchPoint.y = event.getRawY(); 3967 } 3968 return FORWARD; 3969 } 3970 } 3971 3972 /** 3973 * Delivers post-ime input events to a native activity. 3974 */ 3975 final class NativePostImeInputStage extends AsyncInputStage 3976 implements InputQueue.FinishedInputEventCallback { 3977 public NativePostImeInputStage(InputStage next, String traceCounter) { 3978 super(next, traceCounter); 3979 } 3980 3981 @Override 3982 protected int onProcess(QueuedInputEvent q) { 3983 if (mInputQueue != null) { 3984 mInputQueue.sendInputEvent(q.mEvent, q, false, this); 3985 return DEFER; 3986 } 3987 return FORWARD; 3988 } 3989 3990 @Override 3991 public void onFinishedInputEvent(Object token, boolean handled) { 3992 QueuedInputEvent q = (QueuedInputEvent)token; 3993 if (handled) { 3994 finish(q, true); 3995 return; 3996 } 3997 forward(q); 3998 } 3999 } 4000 4001 /** 4002 * Delivers post-ime input events to the view hierarchy. 4003 */ 4004 final class ViewPostImeInputStage extends InputStage { 4005 public ViewPostImeInputStage(InputStage next) { 4006 super(next); 4007 } 4008 4009 @Override 4010 protected int onProcess(QueuedInputEvent q) { 4011 if (q.mEvent instanceof KeyEvent) { 4012 return processKeyEvent(q); 4013 } else { 4014 // If delivering a new non-key event, make sure the window is 4015 // now allowed to start updating. 4016 handleDispatchDoneAnimating(); 4017 final int source = q.mEvent.getSource(); 4018 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 4019 return processPointerEvent(q); 4020 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4021 return processTrackballEvent(q); 4022 } else { 4023 return processGenericMotionEvent(q); 4024 } 4025 } 4026 } 4027 4028 @Override 4029 protected void onDeliverToNext(QueuedInputEvent q) { 4030 if (mUnbufferedInputDispatch 4031 && q.mEvent instanceof MotionEvent 4032 && ((MotionEvent)q.mEvent).isTouchEvent() 4033 && isTerminalInputEvent(q.mEvent)) { 4034 mUnbufferedInputDispatch = false; 4035 scheduleConsumeBatchedInput(); 4036 } 4037 super.onDeliverToNext(q); 4038 } 4039 4040 private int processKeyEvent(QueuedInputEvent q) { 4041 final KeyEvent event = (KeyEvent)q.mEvent; 4042 4043 if (event.getAction() != KeyEvent.ACTION_UP) { 4044 // If delivering a new key event, make sure the window is 4045 // now allowed to start updating. 4046 handleDispatchDoneAnimating(); 4047 } 4048 4049 // Deliver the key to the view hierarchy. 4050 if (mView.dispatchKeyEvent(event)) { 4051 return FINISH_HANDLED; 4052 } 4053 4054 if (shouldDropInputEvent(q)) { 4055 return FINISH_NOT_HANDLED; 4056 } 4057 4058 // If the Control modifier is held, try to interpret the key as a shortcut. 4059 if (event.getAction() == KeyEvent.ACTION_DOWN 4060 && event.isCtrlPressed() 4061 && event.getRepeatCount() == 0 4062 && !KeyEvent.isModifierKey(event.getKeyCode())) { 4063 if (mView.dispatchKeyShortcutEvent(event)) { 4064 return FINISH_HANDLED; 4065 } 4066 if (shouldDropInputEvent(q)) { 4067 return FINISH_NOT_HANDLED; 4068 } 4069 } 4070 4071 // Apply the fallback event policy. 4072 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 4073 return FINISH_HANDLED; 4074 } 4075 if (shouldDropInputEvent(q)) { 4076 return FINISH_NOT_HANDLED; 4077 } 4078 4079 // Handle automatic focus changes. 4080 if (event.getAction() == KeyEvent.ACTION_DOWN) { 4081 int direction = 0; 4082 switch (event.getKeyCode()) { 4083 case KeyEvent.KEYCODE_DPAD_LEFT: 4084 if (event.hasNoModifiers()) { 4085 direction = View.FOCUS_LEFT; 4086 } 4087 break; 4088 case KeyEvent.KEYCODE_DPAD_RIGHT: 4089 if (event.hasNoModifiers()) { 4090 direction = View.FOCUS_RIGHT; 4091 } 4092 break; 4093 case KeyEvent.KEYCODE_DPAD_UP: 4094 if (event.hasNoModifiers()) { 4095 direction = View.FOCUS_UP; 4096 } 4097 break; 4098 case KeyEvent.KEYCODE_DPAD_DOWN: 4099 if (event.hasNoModifiers()) { 4100 direction = View.FOCUS_DOWN; 4101 } 4102 break; 4103 case KeyEvent.KEYCODE_TAB: 4104 if (event.hasNoModifiers()) { 4105 direction = View.FOCUS_FORWARD; 4106 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4107 direction = View.FOCUS_BACKWARD; 4108 } 4109 break; 4110 } 4111 if (direction != 0) { 4112 View focused = mView.findFocus(); 4113 if (focused != null) { 4114 View v = focused.focusSearch(direction); 4115 if (v != null && v != focused) { 4116 // do the math the get the interesting rect 4117 // of previous focused into the coord system of 4118 // newly focused view 4119 focused.getFocusedRect(mTempRect); 4120 if (mView instanceof ViewGroup) { 4121 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 4122 focused, mTempRect); 4123 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 4124 v, mTempRect); 4125 } 4126 if (v.requestFocus(direction, mTempRect)) { 4127 playSoundEffect(SoundEffectConstants 4128 .getContantForFocusDirection(direction)); 4129 return FINISH_HANDLED; 4130 } 4131 } 4132 4133 // Give the focused view a last chance to handle the dpad key. 4134 if (mView.dispatchUnhandledMove(focused, direction)) { 4135 return FINISH_HANDLED; 4136 } 4137 } else { 4138 // find the best view to give focus to in this non-touch-mode with no-focus 4139 View v = focusSearch(null, direction); 4140 if (v != null && v.requestFocus(direction)) { 4141 return FINISH_HANDLED; 4142 } 4143 } 4144 } 4145 } 4146 return FORWARD; 4147 } 4148 4149 private int processPointerEvent(QueuedInputEvent q) { 4150 final MotionEvent event = (MotionEvent)q.mEvent; 4151 4152 mAttachInfo.mUnbufferedDispatchRequested = false; 4153 boolean handled = mView.dispatchPointerEvent(event); 4154 if (mAttachInfo.mUnbufferedDispatchRequested && !mUnbufferedInputDispatch) { 4155 mUnbufferedInputDispatch = true; 4156 if (mConsumeBatchedInputScheduled) { 4157 scheduleConsumeBatchedInputImmediately(); 4158 } 4159 } 4160 return handled ? FINISH_HANDLED : FORWARD; 4161 } 4162 4163 private int processTrackballEvent(QueuedInputEvent q) { 4164 final MotionEvent event = (MotionEvent)q.mEvent; 4165 4166 if (mView.dispatchTrackballEvent(event)) { 4167 return FINISH_HANDLED; 4168 } 4169 return FORWARD; 4170 } 4171 4172 private int processGenericMotionEvent(QueuedInputEvent q) { 4173 final MotionEvent event = (MotionEvent)q.mEvent; 4174 4175 // Deliver the event to the view. 4176 if (mView.dispatchGenericMotionEvent(event)) { 4177 return FINISH_HANDLED; 4178 } 4179 return FORWARD; 4180 } 4181 } 4182 4183 /** 4184 * Performs synthesis of new input events from unhandled input events. 4185 */ 4186 final class SyntheticInputStage extends InputStage { 4187 private final SyntheticTrackballHandler mTrackball = new SyntheticTrackballHandler(); 4188 private final SyntheticJoystickHandler mJoystick = new SyntheticJoystickHandler(); 4189 private final SyntheticTouchNavigationHandler mTouchNavigation = 4190 new SyntheticTouchNavigationHandler(); 4191 private final SyntheticKeyboardHandler mKeyboard = new SyntheticKeyboardHandler(); 4192 4193 public SyntheticInputStage() { 4194 super(null); 4195 } 4196 4197 @Override 4198 protected int onProcess(QueuedInputEvent q) { 4199 q.mFlags |= QueuedInputEvent.FLAG_RESYNTHESIZED; 4200 if (q.mEvent instanceof MotionEvent) { 4201 final MotionEvent event = (MotionEvent)q.mEvent; 4202 final int source = event.getSource(); 4203 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4204 mTrackball.process(event); 4205 return FINISH_HANDLED; 4206 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4207 mJoystick.process(event); 4208 return FINISH_HANDLED; 4209 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4210 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4211 mTouchNavigation.process(event); 4212 return FINISH_HANDLED; 4213 } 4214 } else if ((q.mFlags & QueuedInputEvent.FLAG_UNHANDLED) != 0) { 4215 mKeyboard.process((KeyEvent)q.mEvent); 4216 return FINISH_HANDLED; 4217 } 4218 4219 return FORWARD; 4220 } 4221 4222 @Override 4223 protected void onDeliverToNext(QueuedInputEvent q) { 4224 if ((q.mFlags & QueuedInputEvent.FLAG_RESYNTHESIZED) == 0) { 4225 // Cancel related synthetic events if any prior stage has handled the event. 4226 if (q.mEvent instanceof MotionEvent) { 4227 final MotionEvent event = (MotionEvent)q.mEvent; 4228 final int source = event.getSource(); 4229 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 4230 mTrackball.cancel(event); 4231 } else if ((source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { 4232 mJoystick.cancel(event); 4233 } else if ((source & InputDevice.SOURCE_TOUCH_NAVIGATION) 4234 == InputDevice.SOURCE_TOUCH_NAVIGATION) { 4235 mTouchNavigation.cancel(event); 4236 } 4237 } 4238 } 4239 super.onDeliverToNext(q); 4240 } 4241 } 4242 4243 /** 4244 * Creates dpad events from unhandled trackball movements. 4245 */ 4246 final class SyntheticTrackballHandler { 4247 private final TrackballAxis mX = new TrackballAxis(); 4248 private final TrackballAxis mY = new TrackballAxis(); 4249 private long mLastTime; 4250 4251 public void process(MotionEvent event) { 4252 // Translate the trackball event into DPAD keys and try to deliver those. 4253 long curTime = SystemClock.uptimeMillis(); 4254 if ((mLastTime + MAX_TRACKBALL_DELAY) < curTime) { 4255 // It has been too long since the last movement, 4256 // so restart at the beginning. 4257 mX.reset(0); 4258 mY.reset(0); 4259 mLastTime = curTime; 4260 } 4261 4262 final int action = event.getAction(); 4263 final int metaState = event.getMetaState(); 4264 switch (action) { 4265 case MotionEvent.ACTION_DOWN: 4266 mX.reset(2); 4267 mY.reset(2); 4268 enqueueInputEvent(new KeyEvent(curTime, curTime, 4269 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4270 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4271 InputDevice.SOURCE_KEYBOARD)); 4272 break; 4273 case MotionEvent.ACTION_UP: 4274 mX.reset(2); 4275 mY.reset(2); 4276 enqueueInputEvent(new KeyEvent(curTime, curTime, 4277 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 4278 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4279 InputDevice.SOURCE_KEYBOARD)); 4280 break; 4281 } 4282 4283 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + mX.position + " step=" 4284 + mX.step + " dir=" + mX.dir + " acc=" + mX.acceleration 4285 + " move=" + event.getX() 4286 + " / Y=" + mY.position + " step=" 4287 + mY.step + " dir=" + mY.dir + " acc=" + mY.acceleration 4288 + " move=" + event.getY()); 4289 final float xOff = mX.collect(event.getX(), event.getEventTime(), "X"); 4290 final float yOff = mY.collect(event.getY(), event.getEventTime(), "Y"); 4291 4292 // Generate DPAD events based on the trackball movement. 4293 // We pick the axis that has moved the most as the direction of 4294 // the DPAD. When we generate DPAD events for one axis, then the 4295 // other axis is reset -- we don't want to perform DPAD jumps due 4296 // to slight movements in the trackball when making major movements 4297 // along the other axis. 4298 int keycode = 0; 4299 int movement = 0; 4300 float accel = 1; 4301 if (xOff > yOff) { 4302 movement = mX.generate(); 4303 if (movement != 0) { 4304 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 4305 : KeyEvent.KEYCODE_DPAD_LEFT; 4306 accel = mX.acceleration; 4307 mY.reset(2); 4308 } 4309 } else if (yOff > 0) { 4310 movement = mY.generate(); 4311 if (movement != 0) { 4312 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 4313 : KeyEvent.KEYCODE_DPAD_UP; 4314 accel = mY.acceleration; 4315 mX.reset(2); 4316 } 4317 } 4318 4319 if (keycode != 0) { 4320 if (movement < 0) movement = -movement; 4321 int accelMovement = (int)(movement * accel); 4322 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 4323 + " accelMovement=" + accelMovement 4324 + " accel=" + accel); 4325 if (accelMovement > movement) { 4326 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4327 + keycode); 4328 movement--; 4329 int repeatCount = accelMovement - movement; 4330 enqueueInputEvent(new KeyEvent(curTime, curTime, 4331 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 4332 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4333 InputDevice.SOURCE_KEYBOARD)); 4334 } 4335 while (movement > 0) { 4336 if (DEBUG_TRACKBALL) Log.v(TAG, "Delivering fake DPAD: " 4337 + keycode); 4338 movement--; 4339 curTime = SystemClock.uptimeMillis(); 4340 enqueueInputEvent(new KeyEvent(curTime, curTime, 4341 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 4342 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4343 InputDevice.SOURCE_KEYBOARD)); 4344 enqueueInputEvent(new KeyEvent(curTime, curTime, 4345 KeyEvent.ACTION_UP, keycode, 0, metaState, 4346 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 4347 InputDevice.SOURCE_KEYBOARD)); 4348 } 4349 mLastTime = curTime; 4350 } 4351 } 4352 4353 public void cancel(MotionEvent event) { 4354 mLastTime = Integer.MIN_VALUE; 4355 4356 // If we reach this, we consumed a trackball event. 4357 // Because we will not translate the trackball event into a key event, 4358 // touch mode will not exit, so we exit touch mode here. 4359 if (mView != null && mAdded) { 4360 ensureTouchMode(false); 4361 } 4362 } 4363 } 4364 4365 /** 4366 * Maintains state information for a single trackball axis, generating 4367 * discrete (DPAD) movements based on raw trackball motion. 4368 */ 4369 static final class TrackballAxis { 4370 /** 4371 * The maximum amount of acceleration we will apply. 4372 */ 4373 static final float MAX_ACCELERATION = 20; 4374 4375 /** 4376 * The maximum amount of time (in milliseconds) between events in order 4377 * for us to consider the user to be doing fast trackball movements, 4378 * and thus apply an acceleration. 4379 */ 4380 static final long FAST_MOVE_TIME = 150; 4381 4382 /** 4383 * Scaling factor to the time (in milliseconds) between events to how 4384 * much to multiple/divide the current acceleration. When movement 4385 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4386 * FAST_MOVE_TIME it divides it. 4387 */ 4388 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4389 4390 static final float FIRST_MOVEMENT_THRESHOLD = 0.5f; 4391 static final float SECOND_CUMULATIVE_MOVEMENT_THRESHOLD = 2.0f; 4392 static final float SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD = 1.0f; 4393 4394 float position; 4395 float acceleration = 1; 4396 long lastMoveTime = 0; 4397 int step; 4398 int dir; 4399 int nonAccelMovement; 4400 4401 void reset(int _step) { 4402 position = 0; 4403 acceleration = 1; 4404 lastMoveTime = 0; 4405 step = _step; 4406 dir = 0; 4407 } 4408 4409 /** 4410 * Add trackball movement into the state. If the direction of movement 4411 * has been reversed, the state is reset before adding the 4412 * movement (so that you don't have to compensate for any previously 4413 * collected movement before see the result of the movement in the 4414 * new direction). 4415 * 4416 * @return Returns the absolute value of the amount of movement 4417 * collected so far. 4418 */ 4419 float collect(float off, long time, String axis) { 4420 long normTime; 4421 if (off > 0) { 4422 normTime = (long)(off * FAST_MOVE_TIME); 4423 if (dir < 0) { 4424 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4425 position = 0; 4426 step = 0; 4427 acceleration = 1; 4428 lastMoveTime = 0; 4429 } 4430 dir = 1; 4431 } else if (off < 0) { 4432 normTime = (long)((-off) * FAST_MOVE_TIME); 4433 if (dir > 0) { 4434 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4435 position = 0; 4436 step = 0; 4437 acceleration = 1; 4438 lastMoveTime = 0; 4439 } 4440 dir = -1; 4441 } else { 4442 normTime = 0; 4443 } 4444 4445 // The number of milliseconds between each movement that is 4446 // considered "normal" and will not result in any acceleration 4447 // or deceleration, scaled by the offset we have here. 4448 if (normTime > 0) { 4449 long delta = time - lastMoveTime; 4450 lastMoveTime = time; 4451 float acc = acceleration; 4452 if (delta < normTime) { 4453 // The user is scrolling rapidly, so increase acceleration. 4454 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4455 if (scale > 1) acc *= scale; 4456 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4457 + off + " normTime=" + normTime + " delta=" + delta 4458 + " scale=" + scale + " acc=" + acc); 4459 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4460 } else { 4461 // The user is scrolling slowly, so decrease acceleration. 4462 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4463 if (scale > 1) acc /= scale; 4464 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4465 + off + " normTime=" + normTime + " delta=" + delta 4466 + " scale=" + scale + " acc=" + acc); 4467 acceleration = acc > 1 ? acc : 1; 4468 } 4469 } 4470 position += off; 4471 return Math.abs(position); 4472 } 4473 4474 /** 4475 * Generate the number of discrete movement events appropriate for 4476 * the currently collected trackball movement. 4477 * 4478 * @return Returns the number of discrete movements, either positive 4479 * or negative, or 0 if there is not enough trackball movement yet 4480 * for a discrete movement. 4481 */ 4482 int generate() { 4483 int movement = 0; 4484 nonAccelMovement = 0; 4485 do { 4486 final int dir = position >= 0 ? 1 : -1; 4487 switch (step) { 4488 // If we are going to execute the first step, then we want 4489 // to do this as soon as possible instead of waiting for 4490 // a full movement, in order to make things look responsive. 4491 case 0: 4492 if (Math.abs(position) < FIRST_MOVEMENT_THRESHOLD) { 4493 return movement; 4494 } 4495 movement += dir; 4496 nonAccelMovement += dir; 4497 step = 1; 4498 break; 4499 // If we have generated the first movement, then we need 4500 // to wait for the second complete trackball motion before 4501 // generating the second discrete movement. 4502 case 1: 4503 if (Math.abs(position) < SECOND_CUMULATIVE_MOVEMENT_THRESHOLD) { 4504 return movement; 4505 } 4506 movement += dir; 4507 nonAccelMovement += dir; 4508 position -= SECOND_CUMULATIVE_MOVEMENT_THRESHOLD * dir; 4509 step = 2; 4510 break; 4511 // After the first two, we generate discrete movements 4512 // consistently with the trackball, applying an acceleration 4513 // if the trackball is moving quickly. This is a simple 4514 // acceleration on top of what we already compute based 4515 // on how quickly the wheel is being turned, to apply 4516 // a longer increasing acceleration to continuous movement 4517 // in one direction. 4518 default: 4519 if (Math.abs(position) < SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD) { 4520 return movement; 4521 } 4522 movement += dir; 4523 position -= dir * SUBSEQUENT_INCREMENTAL_MOVEMENT_THRESHOLD; 4524 float acc = acceleration; 4525 acc *= 1.1f; 4526 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4527 break; 4528 } 4529 } while (true); 4530 } 4531 } 4532 4533 /** 4534 * Creates dpad events from unhandled joystick movements. 4535 */ 4536 final class SyntheticJoystickHandler extends Handler { 4537 private final static String TAG = "SyntheticJoystickHandler"; 4538 private final static int MSG_ENQUEUE_X_AXIS_KEY_REPEAT = 1; 4539 private final static int MSG_ENQUEUE_Y_AXIS_KEY_REPEAT = 2; 4540 4541 private int mLastXDirection; 4542 private int mLastYDirection; 4543 private int mLastXKeyCode; 4544 private int mLastYKeyCode; 4545 4546 public SyntheticJoystickHandler() { 4547 super(true); 4548 } 4549 4550 @Override 4551 public void handleMessage(Message msg) { 4552 switch (msg.what) { 4553 case MSG_ENQUEUE_X_AXIS_KEY_REPEAT: 4554 case MSG_ENQUEUE_Y_AXIS_KEY_REPEAT: { 4555 KeyEvent oldEvent = (KeyEvent)msg.obj; 4556 KeyEvent e = KeyEvent.changeTimeRepeat(oldEvent, 4557 SystemClock.uptimeMillis(), 4558 oldEvent.getRepeatCount() + 1); 4559 if (mAttachInfo.mHasWindowFocus) { 4560 enqueueInputEvent(e); 4561 Message m = obtainMessage(msg.what, e); 4562 m.setAsynchronous(true); 4563 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatDelay()); 4564 } 4565 } break; 4566 } 4567 } 4568 4569 public void process(MotionEvent event) { 4570 switch(event.getActionMasked()) { 4571 case MotionEvent.ACTION_CANCEL: 4572 cancel(event); 4573 break; 4574 case MotionEvent.ACTION_MOVE: 4575 update(event, true); 4576 break; 4577 default: 4578 Log.w(TAG, "Unexpected action: " + event.getActionMasked()); 4579 } 4580 } 4581 4582 private void cancel(MotionEvent event) { 4583 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4584 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4585 update(event, false); 4586 } 4587 4588 private void update(MotionEvent event, boolean synthesizeNewKeys) { 4589 final long time = event.getEventTime(); 4590 final int metaState = event.getMetaState(); 4591 final int deviceId = event.getDeviceId(); 4592 final int source = event.getSource(); 4593 4594 int xDirection = joystickAxisValueToDirection( 4595 event.getAxisValue(MotionEvent.AXIS_HAT_X)); 4596 if (xDirection == 0) { 4597 xDirection = joystickAxisValueToDirection(event.getX()); 4598 } 4599 4600 int yDirection = joystickAxisValueToDirection( 4601 event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 4602 if (yDirection == 0) { 4603 yDirection = joystickAxisValueToDirection(event.getY()); 4604 } 4605 4606 if (xDirection != mLastXDirection) { 4607 if (mLastXKeyCode != 0) { 4608 removeMessages(MSG_ENQUEUE_X_AXIS_KEY_REPEAT); 4609 enqueueInputEvent(new KeyEvent(time, time, 4610 KeyEvent.ACTION_UP, mLastXKeyCode, 0, metaState, 4611 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4612 mLastXKeyCode = 0; 4613 } 4614 4615 mLastXDirection = xDirection; 4616 4617 if (xDirection != 0 && synthesizeNewKeys) { 4618 mLastXKeyCode = xDirection > 0 4619 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 4620 final KeyEvent e = new KeyEvent(time, time, 4621 KeyEvent.ACTION_DOWN, mLastXKeyCode, 0, metaState, 4622 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4623 enqueueInputEvent(e); 4624 Message m = obtainMessage(MSG_ENQUEUE_X_AXIS_KEY_REPEAT, e); 4625 m.setAsynchronous(true); 4626 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4627 } 4628 } 4629 4630 if (yDirection != mLastYDirection) { 4631 if (mLastYKeyCode != 0) { 4632 removeMessages(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT); 4633 enqueueInputEvent(new KeyEvent(time, time, 4634 KeyEvent.ACTION_UP, mLastYKeyCode, 0, metaState, 4635 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 4636 mLastYKeyCode = 0; 4637 } 4638 4639 mLastYDirection = yDirection; 4640 4641 if (yDirection != 0 && synthesizeNewKeys) { 4642 mLastYKeyCode = yDirection > 0 4643 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 4644 final KeyEvent e = new KeyEvent(time, time, 4645 KeyEvent.ACTION_DOWN, mLastYKeyCode, 0, metaState, 4646 deviceId, 0, KeyEvent.FLAG_FALLBACK, source); 4647 enqueueInputEvent(e); 4648 Message m = obtainMessage(MSG_ENQUEUE_Y_AXIS_KEY_REPEAT, e); 4649 m.setAsynchronous(true); 4650 sendMessageDelayed(m, ViewConfiguration.getKeyRepeatTimeout()); 4651 } 4652 } 4653 } 4654 4655 private int joystickAxisValueToDirection(float value) { 4656 if (value >= 0.5f) { 4657 return 1; 4658 } else if (value <= -0.5f) { 4659 return -1; 4660 } else { 4661 return 0; 4662 } 4663 } 4664 } 4665 4666 /** 4667 * Creates dpad events from unhandled touch navigation movements. 4668 */ 4669 final class SyntheticTouchNavigationHandler extends Handler { 4670 private static final String LOCAL_TAG = "SyntheticTouchNavigationHandler"; 4671 private static final boolean LOCAL_DEBUG = false; 4672 4673 // Assumed nominal width and height in millimeters of a touch navigation pad, 4674 // if no resolution information is available from the input system. 4675 private static final float DEFAULT_WIDTH_MILLIMETERS = 48; 4676 private static final float DEFAULT_HEIGHT_MILLIMETERS = 48; 4677 4678 /* TODO: These constants should eventually be moved to ViewConfiguration. */ 4679 4680 // The nominal distance traveled to move by one unit. 4681 private static final int TICK_DISTANCE_MILLIMETERS = 12; 4682 4683 // Minimum and maximum fling velocity in ticks per second. 4684 // The minimum velocity should be set such that we perform enough ticks per 4685 // second that the fling appears to be fluid. For example, if we set the minimum 4686 // to 2 ticks per second, then there may be up to half a second delay between the next 4687 // to last and last ticks which is noticeably discrete and jerky. This value should 4688 // probably not be set to anything less than about 4. 4689 // If fling accuracy is a problem then consider tuning the tick distance instead. 4690 private static final float MIN_FLING_VELOCITY_TICKS_PER_SECOND = 6f; 4691 private static final float MAX_FLING_VELOCITY_TICKS_PER_SECOND = 20f; 4692 4693 // Fling velocity decay factor applied after each new key is emitted. 4694 // This parameter controls the deceleration and overall duration of the fling. 4695 // The fling stops automatically when its velocity drops below the minimum 4696 // fling velocity defined above. 4697 private static final float FLING_TICK_DECAY = 0.8f; 4698 4699 /* The input device that we are tracking. */ 4700 4701 private int mCurrentDeviceId = -1; 4702 private int mCurrentSource; 4703 private boolean mCurrentDeviceSupported; 4704 4705 /* Configuration for the current input device. */ 4706 4707 // The scaled tick distance. A movement of this amount should generally translate 4708 // into a single dpad event in a given direction. 4709 private float mConfigTickDistance; 4710 4711 // The minimum and maximum scaled fling velocity. 4712 private float mConfigMinFlingVelocity; 4713 private float mConfigMaxFlingVelocity; 4714 4715 /* Tracking state. */ 4716 4717 // The velocity tracker for detecting flings. 4718 private VelocityTracker mVelocityTracker; 4719 4720 // The active pointer id, or -1 if none. 4721 private int mActivePointerId = -1; 4722 4723 // Location where tracking started. 4724 private float mStartX; 4725 private float mStartY; 4726 4727 // Most recently observed position. 4728 private float mLastX; 4729 private float mLastY; 4730 4731 // Accumulated movement delta since the last direction key was sent. 4732 private float mAccumulatedX; 4733 private float mAccumulatedY; 4734 4735 // Set to true if any movement was delivered to the app. 4736 // Implies that tap slop was exceeded. 4737 private boolean mConsumedMovement; 4738 4739 // The most recently sent key down event. 4740 // The keycode remains set until the direction changes or a fling ends 4741 // so that repeated key events may be generated as required. 4742 private long mPendingKeyDownTime; 4743 private int mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4744 private int mPendingKeyRepeatCount; 4745 private int mPendingKeyMetaState; 4746 4747 // The current fling velocity while a fling is in progress. 4748 private boolean mFlinging; 4749 private float mFlingVelocity; 4750 4751 public SyntheticTouchNavigationHandler() { 4752 super(true); 4753 } 4754 4755 public void process(MotionEvent event) { 4756 // Update the current device information. 4757 final long time = event.getEventTime(); 4758 final int deviceId = event.getDeviceId(); 4759 final int source = event.getSource(); 4760 if (mCurrentDeviceId != deviceId || mCurrentSource != source) { 4761 finishKeys(time); 4762 finishTracking(time); 4763 mCurrentDeviceId = deviceId; 4764 mCurrentSource = source; 4765 mCurrentDeviceSupported = false; 4766 InputDevice device = event.getDevice(); 4767 if (device != null) { 4768 // In order to support an input device, we must know certain 4769 // characteristics about it, such as its size and resolution. 4770 InputDevice.MotionRange xRange = device.getMotionRange(MotionEvent.AXIS_X); 4771 InputDevice.MotionRange yRange = device.getMotionRange(MotionEvent.AXIS_Y); 4772 if (xRange != null && yRange != null) { 4773 mCurrentDeviceSupported = true; 4774 4775 // Infer the resolution if it not actually known. 4776 float xRes = xRange.getResolution(); 4777 if (xRes <= 0) { 4778 xRes = xRange.getRange() / DEFAULT_WIDTH_MILLIMETERS; 4779 } 4780 float yRes = yRange.getResolution(); 4781 if (yRes <= 0) { 4782 yRes = yRange.getRange() / DEFAULT_HEIGHT_MILLIMETERS; 4783 } 4784 float nominalRes = (xRes + yRes) * 0.5f; 4785 4786 // Precompute all of the configuration thresholds we will need. 4787 mConfigTickDistance = TICK_DISTANCE_MILLIMETERS * nominalRes; 4788 mConfigMinFlingVelocity = 4789 MIN_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4790 mConfigMaxFlingVelocity = 4791 MAX_FLING_VELOCITY_TICKS_PER_SECOND * mConfigTickDistance; 4792 4793 if (LOCAL_DEBUG) { 4794 Log.d(LOCAL_TAG, "Configured device " + mCurrentDeviceId 4795 + " (" + Integer.toHexString(mCurrentSource) + "): " 4796 + ", mConfigTickDistance=" + mConfigTickDistance 4797 + ", mConfigMinFlingVelocity=" + mConfigMinFlingVelocity 4798 + ", mConfigMaxFlingVelocity=" + mConfigMaxFlingVelocity); 4799 } 4800 } 4801 } 4802 } 4803 if (!mCurrentDeviceSupported) { 4804 return; 4805 } 4806 4807 // Handle the event. 4808 final int action = event.getActionMasked(); 4809 switch (action) { 4810 case MotionEvent.ACTION_DOWN: { 4811 boolean caughtFling = mFlinging; 4812 finishKeys(time); 4813 finishTracking(time); 4814 mActivePointerId = event.getPointerId(0); 4815 mVelocityTracker = VelocityTracker.obtain(); 4816 mVelocityTracker.addMovement(event); 4817 mStartX = event.getX(); 4818 mStartY = event.getY(); 4819 mLastX = mStartX; 4820 mLastY = mStartY; 4821 mAccumulatedX = 0; 4822 mAccumulatedY = 0; 4823 4824 // If we caught a fling, then pretend that the tap slop has already 4825 // been exceeded to suppress taps whose only purpose is to stop the fling. 4826 mConsumedMovement = caughtFling; 4827 break; 4828 } 4829 4830 case MotionEvent.ACTION_MOVE: 4831 case MotionEvent.ACTION_UP: { 4832 if (mActivePointerId < 0) { 4833 break; 4834 } 4835 final int index = event.findPointerIndex(mActivePointerId); 4836 if (index < 0) { 4837 finishKeys(time); 4838 finishTracking(time); 4839 break; 4840 } 4841 4842 mVelocityTracker.addMovement(event); 4843 final float x = event.getX(index); 4844 final float y = event.getY(index); 4845 mAccumulatedX += x - mLastX; 4846 mAccumulatedY += y - mLastY; 4847 mLastX = x; 4848 mLastY = y; 4849 4850 // Consume any accumulated movement so far. 4851 final int metaState = event.getMetaState(); 4852 consumeAccumulatedMovement(time, metaState); 4853 4854 // Detect taps and flings. 4855 if (action == MotionEvent.ACTION_UP) { 4856 if (mConsumedMovement && mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4857 // It might be a fling. 4858 mVelocityTracker.computeCurrentVelocity(1000, mConfigMaxFlingVelocity); 4859 final float vx = mVelocityTracker.getXVelocity(mActivePointerId); 4860 final float vy = mVelocityTracker.getYVelocity(mActivePointerId); 4861 if (!startFling(time, vx, vy)) { 4862 finishKeys(time); 4863 } 4864 } 4865 finishTracking(time); 4866 } 4867 break; 4868 } 4869 4870 case MotionEvent.ACTION_CANCEL: { 4871 finishKeys(time); 4872 finishTracking(time); 4873 break; 4874 } 4875 } 4876 } 4877 4878 public void cancel(MotionEvent event) { 4879 if (mCurrentDeviceId == event.getDeviceId() 4880 && mCurrentSource == event.getSource()) { 4881 final long time = event.getEventTime(); 4882 finishKeys(time); 4883 finishTracking(time); 4884 } 4885 } 4886 4887 private void finishKeys(long time) { 4888 cancelFling(); 4889 sendKeyUp(time); 4890 } 4891 4892 private void finishTracking(long time) { 4893 if (mActivePointerId >= 0) { 4894 mActivePointerId = -1; 4895 mVelocityTracker.recycle(); 4896 mVelocityTracker = null; 4897 } 4898 } 4899 4900 private void consumeAccumulatedMovement(long time, int metaState) { 4901 final float absX = Math.abs(mAccumulatedX); 4902 final float absY = Math.abs(mAccumulatedY); 4903 if (absX >= absY) { 4904 if (absX >= mConfigTickDistance) { 4905 mAccumulatedX = consumeAccumulatedMovement(time, metaState, mAccumulatedX, 4906 KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT); 4907 mAccumulatedY = 0; 4908 mConsumedMovement = true; 4909 } 4910 } else { 4911 if (absY >= mConfigTickDistance) { 4912 mAccumulatedY = consumeAccumulatedMovement(time, metaState, mAccumulatedY, 4913 KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN); 4914 mAccumulatedX = 0; 4915 mConsumedMovement = true; 4916 } 4917 } 4918 } 4919 4920 private float consumeAccumulatedMovement(long time, int metaState, 4921 float accumulator, int negativeKeyCode, int positiveKeyCode) { 4922 while (accumulator <= -mConfigTickDistance) { 4923 sendKeyDownOrRepeat(time, negativeKeyCode, metaState); 4924 accumulator += mConfigTickDistance; 4925 } 4926 while (accumulator >= mConfigTickDistance) { 4927 sendKeyDownOrRepeat(time, positiveKeyCode, metaState); 4928 accumulator -= mConfigTickDistance; 4929 } 4930 return accumulator; 4931 } 4932 4933 private void sendKeyDownOrRepeat(long time, int keyCode, int metaState) { 4934 if (mPendingKeyCode != keyCode) { 4935 sendKeyUp(time); 4936 mPendingKeyDownTime = time; 4937 mPendingKeyCode = keyCode; 4938 mPendingKeyRepeatCount = 0; 4939 } else { 4940 mPendingKeyRepeatCount += 1; 4941 } 4942 mPendingKeyMetaState = metaState; 4943 4944 // Note: Normally we would pass FLAG_LONG_PRESS when the repeat count is 1 4945 // but it doesn't quite make sense when simulating the events in this way. 4946 if (LOCAL_DEBUG) { 4947 Log.d(LOCAL_TAG, "Sending key down: keyCode=" + mPendingKeyCode 4948 + ", repeatCount=" + mPendingKeyRepeatCount 4949 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4950 } 4951 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4952 KeyEvent.ACTION_DOWN, mPendingKeyCode, mPendingKeyRepeatCount, 4953 mPendingKeyMetaState, mCurrentDeviceId, 4954 KeyEvent.FLAG_FALLBACK, mCurrentSource)); 4955 } 4956 4957 private void sendKeyUp(long time) { 4958 if (mPendingKeyCode != KeyEvent.KEYCODE_UNKNOWN) { 4959 if (LOCAL_DEBUG) { 4960 Log.d(LOCAL_TAG, "Sending key up: keyCode=" + mPendingKeyCode 4961 + ", metaState=" + Integer.toHexString(mPendingKeyMetaState)); 4962 } 4963 enqueueInputEvent(new KeyEvent(mPendingKeyDownTime, time, 4964 KeyEvent.ACTION_UP, mPendingKeyCode, 0, mPendingKeyMetaState, 4965 mCurrentDeviceId, 0, KeyEvent.FLAG_FALLBACK, 4966 mCurrentSource)); 4967 mPendingKeyCode = KeyEvent.KEYCODE_UNKNOWN; 4968 } 4969 } 4970 4971 private boolean startFling(long time, float vx, float vy) { 4972 if (LOCAL_DEBUG) { 4973 Log.d(LOCAL_TAG, "Considering fling: vx=" + vx + ", vy=" + vy 4974 + ", min=" + mConfigMinFlingVelocity); 4975 } 4976 4977 // Flings must be oriented in the same direction as the preceding movements. 4978 switch (mPendingKeyCode) { 4979 case KeyEvent.KEYCODE_DPAD_LEFT: 4980 if (-vx >= mConfigMinFlingVelocity 4981 && Math.abs(vy) < mConfigMinFlingVelocity) { 4982 mFlingVelocity = -vx; 4983 break; 4984 } 4985 return false; 4986 4987 case KeyEvent.KEYCODE_DPAD_RIGHT: 4988 if (vx >= mConfigMinFlingVelocity 4989 && Math.abs(vy) < mConfigMinFlingVelocity) { 4990 mFlingVelocity = vx; 4991 break; 4992 } 4993 return false; 4994 4995 case KeyEvent.KEYCODE_DPAD_UP: 4996 if (-vy >= mConfigMinFlingVelocity 4997 && Math.abs(vx) < mConfigMinFlingVelocity) { 4998 mFlingVelocity = -vy; 4999 break; 5000 } 5001 return false; 5002 5003 case KeyEvent.KEYCODE_DPAD_DOWN: 5004 if (vy >= mConfigMinFlingVelocity 5005 && Math.abs(vx) < mConfigMinFlingVelocity) { 5006 mFlingVelocity = vy; 5007 break; 5008 } 5009 return false; 5010 } 5011 5012 // Post the first fling event. 5013 mFlinging = postFling(time); 5014 return mFlinging; 5015 } 5016 5017 private boolean postFling(long time) { 5018 // The idea here is to estimate the time when the pointer would have 5019 // traveled one tick distance unit given the current fling velocity. 5020 // This effect creates continuity of motion. 5021 if (mFlingVelocity >= mConfigMinFlingVelocity) { 5022 long delay = (long)(mConfigTickDistance / mFlingVelocity * 1000); 5023 postAtTime(mFlingRunnable, time + delay); 5024 if (LOCAL_DEBUG) { 5025 Log.d(LOCAL_TAG, "Posted fling: velocity=" 5026 + mFlingVelocity + ", delay=" + delay 5027 + ", keyCode=" + mPendingKeyCode); 5028 } 5029 return true; 5030 } 5031 return false; 5032 } 5033 5034 private void cancelFling() { 5035 if (mFlinging) { 5036 removeCallbacks(mFlingRunnable); 5037 mFlinging = false; 5038 } 5039 } 5040 5041 private final Runnable mFlingRunnable = new Runnable() { 5042 @Override 5043 public void run() { 5044 final long time = SystemClock.uptimeMillis(); 5045 sendKeyDownOrRepeat(time, mPendingKeyCode, mPendingKeyMetaState); 5046 mFlingVelocity *= FLING_TICK_DECAY; 5047 if (!postFling(time)) { 5048 mFlinging = false; 5049 finishKeys(time); 5050 } 5051 } 5052 }; 5053 } 5054 5055 final class SyntheticKeyboardHandler { 5056 public void process(KeyEvent event) { 5057 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) != 0) { 5058 return; 5059 } 5060 5061 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 5062 final int keyCode = event.getKeyCode(); 5063 final int metaState = event.getMetaState(); 5064 5065 // Check for fallback actions specified by the key character map. 5066 KeyCharacterMap.FallbackAction fallbackAction = 5067 kcm.getFallbackAction(keyCode, metaState); 5068 if (fallbackAction != null) { 5069 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 5070 KeyEvent fallbackEvent = KeyEvent.obtain( 5071 event.getDownTime(), event.getEventTime(), 5072 event.getAction(), fallbackAction.keyCode, 5073 event.getRepeatCount(), fallbackAction.metaState, 5074 event.getDeviceId(), event.getScanCode(), 5075 flags, event.getSource(), null); 5076 fallbackAction.recycle(); 5077 enqueueInputEvent(fallbackEvent); 5078 } 5079 } 5080 } 5081 5082 /** 5083 * Returns true if the key is used for keyboard navigation. 5084 * @param keyEvent The key event. 5085 * @return True if the key is used for keyboard navigation. 5086 */ 5087 private static boolean isNavigationKey(KeyEvent keyEvent) { 5088 switch (keyEvent.getKeyCode()) { 5089 case KeyEvent.KEYCODE_DPAD_LEFT: 5090 case KeyEvent.KEYCODE_DPAD_RIGHT: 5091 case KeyEvent.KEYCODE_DPAD_UP: 5092 case KeyEvent.KEYCODE_DPAD_DOWN: 5093 case KeyEvent.KEYCODE_DPAD_CENTER: 5094 case KeyEvent.KEYCODE_PAGE_UP: 5095 case KeyEvent.KEYCODE_PAGE_DOWN: 5096 case KeyEvent.KEYCODE_MOVE_HOME: 5097 case KeyEvent.KEYCODE_MOVE_END: 5098 case KeyEvent.KEYCODE_TAB: 5099 case KeyEvent.KEYCODE_SPACE: 5100 case KeyEvent.KEYCODE_ENTER: 5101 return true; 5102 } 5103 return false; 5104 } 5105 5106 /** 5107 * Returns true if the key is used for typing. 5108 * @param keyEvent The key event. 5109 * @return True if the key is used for typing. 5110 */ 5111 private static boolean isTypingKey(KeyEvent keyEvent) { 5112 return keyEvent.getUnicodeChar() > 0; 5113 } 5114 5115 /** 5116 * See if the key event means we should leave touch mode (and leave touch mode if so). 5117 * @param event The key event. 5118 * @return Whether this key event should be consumed (meaning the act of 5119 * leaving touch mode alone is considered the event). 5120 */ 5121 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 5122 // Only relevant in touch mode. 5123 if (!mAttachInfo.mInTouchMode) { 5124 return false; 5125 } 5126 5127 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 5128 final int action = event.getAction(); 5129 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 5130 return false; 5131 } 5132 5133 // Don't leave touch mode if the IME told us not to. 5134 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 5135 return false; 5136 } 5137 5138 // If the key can be used for keyboard navigation then leave touch mode 5139 // and select a focused view if needed (in ensureTouchMode). 5140 // When a new focused view is selected, we consume the navigation key because 5141 // navigation doesn't make much sense unless a view already has focus so 5142 // the key's purpose is to set focus. 5143 if (isNavigationKey(event)) { 5144 return ensureTouchMode(false); 5145 } 5146 5147 // If the key can be used for typing then leave touch mode 5148 // and select a focused view if needed (in ensureTouchMode). 5149 // Always allow the view to process the typing key. 5150 if (isTypingKey(event)) { 5151 ensureTouchMode(false); 5152 return false; 5153 } 5154 5155 return false; 5156 } 5157 5158 /* drag/drop */ 5159 void setLocalDragState(Object obj) { 5160 mLocalDragState = obj; 5161 } 5162 5163 private void handleDragEvent(DragEvent event) { 5164 // From the root, only drag start/end/location are dispatched. entered/exited 5165 // are determined and dispatched by the viewgroup hierarchy, who then report 5166 // that back here for ultimate reporting back to the framework. 5167 if (mView != null && mAdded) { 5168 final int what = event.mAction; 5169 5170 if (what == DragEvent.ACTION_DRAG_EXITED) { 5171 // A direct EXITED event means that the window manager knows we've just crossed 5172 // a window boundary, so the current drag target within this one must have 5173 // just been exited. Send it the usual notifications and then we're done 5174 // for now. 5175 mView.dispatchDragEvent(event); 5176 } else { 5177 // Cache the drag description when the operation starts, then fill it in 5178 // on subsequent calls as a convenience 5179 if (what == DragEvent.ACTION_DRAG_STARTED) { 5180 mCurrentDragView = null; // Start the current-recipient tracking 5181 mDragDescription = event.mClipDescription; 5182 } else { 5183 event.mClipDescription = mDragDescription; 5184 } 5185 5186 // For events with a [screen] location, translate into window coordinates 5187 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 5188 mDragPoint.set(event.mX, event.mY); 5189 if (mTranslator != null) { 5190 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 5191 } 5192 5193 if (mCurScrollY != 0) { 5194 mDragPoint.offset(0, mCurScrollY); 5195 } 5196 5197 event.mX = mDragPoint.x; 5198 event.mY = mDragPoint.y; 5199 } 5200 5201 // Remember who the current drag target is pre-dispatch 5202 final View prevDragView = mCurrentDragView; 5203 5204 // Now dispatch the drag/drop event 5205 boolean result = mView.dispatchDragEvent(event); 5206 5207 // If we changed apparent drag target, tell the OS about it 5208 if (prevDragView != mCurrentDragView) { 5209 try { 5210 if (prevDragView != null) { 5211 mWindowSession.dragRecipientExited(mWindow); 5212 } 5213 if (mCurrentDragView != null) { 5214 mWindowSession.dragRecipientEntered(mWindow); 5215 } 5216 } catch (RemoteException e) { 5217 Slog.e(TAG, "Unable to note drag target change"); 5218 } 5219 } 5220 5221 // Report the drop result when we're done 5222 if (what == DragEvent.ACTION_DROP) { 5223 mDragDescription = null; 5224 try { 5225 Log.i(TAG, "Reporting drop result: " + result); 5226 mWindowSession.reportDropResult(mWindow, result); 5227 } catch (RemoteException e) { 5228 Log.e(TAG, "Unable to report drop result"); 5229 } 5230 } 5231 5232 // When the drag operation ends, release any local state object 5233 // that may have been in use 5234 if (what == DragEvent.ACTION_DRAG_ENDED) { 5235 setLocalDragState(null); 5236 } 5237 } 5238 } 5239 event.recycle(); 5240 } 5241 5242 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 5243 if (mSeq != args.seq) { 5244 // The sequence has changed, so we need to update our value and make 5245 // sure to do a traversal afterward so the window manager is given our 5246 // most recent data. 5247 mSeq = args.seq; 5248 mAttachInfo.mForceReportNewAttributes = true; 5249 scheduleTraversals(); 5250 } 5251 if (mView == null) return; 5252 if (args.localChanges != 0) { 5253 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 5254 } 5255 5256 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 5257 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 5258 mAttachInfo.mGlobalSystemUiVisibility = visibility; 5259 mView.dispatchSystemUiVisibilityChanged(visibility); 5260 } 5261 } 5262 5263 public void handleDispatchDoneAnimating() { 5264 if (mWindowsAnimating) { 5265 mWindowsAnimating = false; 5266 if (!mDirty.isEmpty() || mIsAnimating || mFullRedrawNeeded) { 5267 scheduleTraversals(); 5268 } 5269 } 5270 } 5271 5272 public void handleDispatchWindowShown() { 5273 mAttachInfo.mTreeObserver.dispatchOnWindowShown(); 5274 } 5275 5276 public void getLastTouchPoint(Point outLocation) { 5277 outLocation.x = (int) mLastTouchPoint.x; 5278 outLocation.y = (int) mLastTouchPoint.y; 5279 } 5280 5281 public void setDragFocus(View newDragTarget) { 5282 if (mCurrentDragView != newDragTarget) { 5283 mCurrentDragView = newDragTarget; 5284 } 5285 } 5286 5287 private AudioManager getAudioManager() { 5288 if (mView == null) { 5289 throw new IllegalStateException("getAudioManager called when there is no mView"); 5290 } 5291 if (mAudioManager == null) { 5292 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 5293 } 5294 return mAudioManager; 5295 } 5296 5297 public AccessibilityInteractionController getAccessibilityInteractionController() { 5298 if (mView == null) { 5299 throw new IllegalStateException("getAccessibilityInteractionController" 5300 + " called when there is no mView"); 5301 } 5302 if (mAccessibilityInteractionController == null) { 5303 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 5304 } 5305 return mAccessibilityInteractionController; 5306 } 5307 5308 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 5309 boolean insetsPending) throws RemoteException { 5310 5311 float appScale = mAttachInfo.mApplicationScale; 5312 boolean restore = false; 5313 if (params != null && mTranslator != null) { 5314 restore = true; 5315 params.backup(); 5316 mTranslator.translateWindowLayout(params); 5317 } 5318 if (params != null) { 5319 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 5320 } 5321 mPendingConfiguration.seq = 0; 5322 //Log.d(TAG, ">>>>>> CALLING relayout"); 5323 if (params != null && mOrigWindowType != params.type) { 5324 // For compatibility with old apps, don't crash here. 5325 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 5326 Slog.w(TAG, "Window type can not be changed after " 5327 + "the window is added; ignoring change of " + mView); 5328 params.type = mOrigWindowType; 5329 } 5330 } 5331 int relayoutResult = mWindowSession.relayout( 5332 mWindow, mSeq, params, 5333 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 5334 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 5335 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 5336 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 5337 mPendingStableInsets, mPendingConfiguration, mSurface); 5338 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 5339 if (restore) { 5340 params.restore(); 5341 } 5342 5343 if (mTranslator != null) { 5344 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 5345 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 5346 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 5347 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 5348 mTranslator.translateRectInScreenToAppWindow(mPendingStableInsets); 5349 } 5350 return relayoutResult; 5351 } 5352 5353 /** 5354 * {@inheritDoc} 5355 */ 5356 @Override 5357 public void playSoundEffect(int effectId) { 5358 checkThread(); 5359 5360 try { 5361 final AudioManager audioManager = getAudioManager(); 5362 5363 switch (effectId) { 5364 case SoundEffectConstants.CLICK: 5365 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 5366 return; 5367 case SoundEffectConstants.NAVIGATION_DOWN: 5368 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 5369 return; 5370 case SoundEffectConstants.NAVIGATION_LEFT: 5371 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 5372 return; 5373 case SoundEffectConstants.NAVIGATION_RIGHT: 5374 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 5375 return; 5376 case SoundEffectConstants.NAVIGATION_UP: 5377 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 5378 return; 5379 default: 5380 throw new IllegalArgumentException("unknown effect id " + effectId + 5381 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 5382 } 5383 } catch (IllegalStateException e) { 5384 // Exception thrown by getAudioManager() when mView is null 5385 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 5386 e.printStackTrace(); 5387 } 5388 } 5389 5390 /** 5391 * {@inheritDoc} 5392 */ 5393 @Override 5394 public boolean performHapticFeedback(int effectId, boolean always) { 5395 try { 5396 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 5397 } catch (RemoteException e) { 5398 return false; 5399 } 5400 } 5401 5402 /** 5403 * {@inheritDoc} 5404 */ 5405 @Override 5406 public View focusSearch(View focused, int direction) { 5407 checkThread(); 5408 if (!(mView instanceof ViewGroup)) { 5409 return null; 5410 } 5411 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 5412 } 5413 5414 public void debug() { 5415 mView.debug(); 5416 } 5417 5418 public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 5419 String innerPrefix = prefix + " "; 5420 writer.print(prefix); writer.println("ViewRoot:"); 5421 writer.print(innerPrefix); writer.print("mAdded="); writer.print(mAdded); 5422 writer.print(" mRemoved="); writer.println(mRemoved); 5423 writer.print(innerPrefix); writer.print("mConsumeBatchedInputScheduled="); 5424 writer.println(mConsumeBatchedInputScheduled); 5425 writer.print(innerPrefix); writer.print("mConsumeBatchedInputImmediatelyScheduled="); 5426 writer.println(mConsumeBatchedInputImmediatelyScheduled); 5427 writer.print(innerPrefix); writer.print("mPendingInputEventCount="); 5428 writer.println(mPendingInputEventCount); 5429 writer.print(innerPrefix); writer.print("mProcessInputEventsScheduled="); 5430 writer.println(mProcessInputEventsScheduled); 5431 writer.print(innerPrefix); writer.print("mTraversalScheduled="); 5432 writer.print(mTraversalScheduled); 5433 if (mTraversalScheduled) { 5434 writer.print(" (barrier="); writer.print(mTraversalBarrier); writer.println(")"); 5435 } else { 5436 writer.println(); 5437 } 5438 mFirstInputStage.dump(innerPrefix, writer); 5439 5440 mChoreographer.dump(prefix, writer); 5441 5442 writer.print(prefix); writer.println("View Hierarchy:"); 5443 dumpViewHierarchy(innerPrefix, writer, mView); 5444 } 5445 5446 private void dumpViewHierarchy(String prefix, PrintWriter writer, View view) { 5447 writer.print(prefix); 5448 if (view == null) { 5449 writer.println("null"); 5450 return; 5451 } 5452 writer.println(view.toString()); 5453 if (!(view instanceof ViewGroup)) { 5454 return; 5455 } 5456 ViewGroup grp = (ViewGroup)view; 5457 final int N = grp.getChildCount(); 5458 if (N <= 0) { 5459 return; 5460 } 5461 prefix = prefix + " "; 5462 for (int i=0; i<N; i++) { 5463 dumpViewHierarchy(prefix, writer, grp.getChildAt(i)); 5464 } 5465 } 5466 5467 public void dumpGfxInfo(int[] info) { 5468 info[0] = info[1] = 0; 5469 if (mView != null) { 5470 getGfxInfo(mView, info); 5471 } 5472 } 5473 5474 private static void getGfxInfo(View view, int[] info) { 5475 RenderNode renderNode = view.mRenderNode; 5476 info[0]++; 5477 if (renderNode != null) { 5478 info[1] += renderNode.getDebugSize(); 5479 } 5480 5481 if (view instanceof ViewGroup) { 5482 ViewGroup group = (ViewGroup) view; 5483 5484 int count = group.getChildCount(); 5485 for (int i = 0; i < count; i++) { 5486 getGfxInfo(group.getChildAt(i), info); 5487 } 5488 } 5489 } 5490 5491 /** 5492 * @param immediate True, do now if not in traversal. False, put on queue and do later. 5493 * @return True, request has been queued. False, request has been completed. 5494 */ 5495 boolean die(boolean immediate) { 5496 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 5497 // done by dispatchDetachedFromWindow will cause havoc on return. 5498 if (immediate && !mIsInTraversal) { 5499 doDie(); 5500 return false; 5501 } 5502 5503 if (!mIsDrawing) { 5504 destroyHardwareRenderer(); 5505 } else { 5506 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 5507 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 5508 } 5509 mHandler.sendEmptyMessage(MSG_DIE); 5510 return true; 5511 } 5512 5513 void doDie() { 5514 checkThread(); 5515 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 5516 synchronized (this) { 5517 if (mRemoved) { 5518 return; 5519 } 5520 mRemoved = true; 5521 if (mAdded) { 5522 dispatchDetachedFromWindow(); 5523 } 5524 5525 if (mAdded && !mFirst) { 5526 destroyHardwareRenderer(); 5527 5528 if (mView != null) { 5529 int viewVisibility = mView.getVisibility(); 5530 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 5531 if (mWindowAttributesChanged || viewVisibilityChanged) { 5532 // If layout params have been changed, first give them 5533 // to the window manager to make sure it has the correct 5534 // animation info. 5535 try { 5536 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 5537 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 5538 mWindowSession.finishDrawing(mWindow); 5539 } 5540 } catch (RemoteException e) { 5541 } 5542 } 5543 5544 mSurface.release(); 5545 } 5546 } 5547 5548 mAdded = false; 5549 } 5550 WindowManagerGlobal.getInstance().doRemoveView(this); 5551 } 5552 5553 public void requestUpdateConfiguration(Configuration config) { 5554 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 5555 mHandler.sendMessage(msg); 5556 } 5557 5558 public void loadSystemProperties() { 5559 mHandler.post(new Runnable() { 5560 @Override 5561 public void run() { 5562 // Profiling 5563 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 5564 profileRendering(mAttachInfo.mHasWindowFocus); 5565 5566 // Hardware rendering 5567 if (mAttachInfo.mHardwareRenderer != null) { 5568 if (mAttachInfo.mHardwareRenderer.loadSystemProperties()) { 5569 invalidate(); 5570 } 5571 } 5572 5573 // Layout debugging 5574 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 5575 if (layout != mAttachInfo.mDebugLayout) { 5576 mAttachInfo.mDebugLayout = layout; 5577 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 5578 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 5579 } 5580 } 5581 } 5582 }); 5583 } 5584 5585 private void destroyHardwareRenderer() { 5586 HardwareRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer; 5587 5588 if (hardwareRenderer != null) { 5589 if (mView != null) { 5590 hardwareRenderer.destroyHardwareResources(mView); 5591 } 5592 hardwareRenderer.destroy(); 5593 hardwareRenderer.setRequested(false); 5594 5595 mAttachInfo.mHardwareRenderer = null; 5596 mAttachInfo.mHardwareAccelerated = false; 5597 } 5598 } 5599 5600 public void dispatchFinishInputConnection(InputConnection connection) { 5601 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 5602 mHandler.sendMessage(msg); 5603 } 5604 5605 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 5606 Rect visibleInsets, Rect stableInsets, boolean reportDraw, Configuration newConfig) { 5607 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 5608 + " contentInsets=" + contentInsets.toShortString() 5609 + " visibleInsets=" + visibleInsets.toShortString() 5610 + " reportDraw=" + reportDraw); 5611 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 5612 if (mTranslator != null) { 5613 mTranslator.translateRectInScreenToAppWindow(frame); 5614 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 5615 mTranslator.translateRectInScreenToAppWindow(contentInsets); 5616 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 5617 } 5618 SomeArgs args = SomeArgs.obtain(); 5619 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 5620 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 5621 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 5622 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 5623 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 5624 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 5625 args.arg6 = sameProcessCall ? new Rect(stableInsets) : stableInsets; 5626 msg.obj = args; 5627 mHandler.sendMessage(msg); 5628 } 5629 5630 public void dispatchMoved(int newX, int newY) { 5631 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 5632 if (mTranslator != null) { 5633 PointF point = new PointF(newX, newY); 5634 mTranslator.translatePointInScreenToAppWindow(point); 5635 newX = (int) (point.x + 0.5); 5636 newY = (int) (point.y + 0.5); 5637 } 5638 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 5639 mHandler.sendMessage(msg); 5640 } 5641 5642 /** 5643 * Represents a pending input event that is waiting in a queue. 5644 * 5645 * Input events are processed in serial order by the timestamp specified by 5646 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 5647 * one input event to the application at a time and waits for the application 5648 * to finish handling it before delivering the next one. 5649 * 5650 * However, because the application or IME can synthesize and inject multiple 5651 * key events at a time without going through the input dispatcher, we end up 5652 * needing a queue on the application's side. 5653 */ 5654 private static final class QueuedInputEvent { 5655 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 5656 public static final int FLAG_DEFERRED = 1 << 1; 5657 public static final int FLAG_FINISHED = 1 << 2; 5658 public static final int FLAG_FINISHED_HANDLED = 1 << 3; 5659 public static final int FLAG_RESYNTHESIZED = 1 << 4; 5660 public static final int FLAG_UNHANDLED = 1 << 5; 5661 5662 public QueuedInputEvent mNext; 5663 5664 public InputEvent mEvent; 5665 public InputEventReceiver mReceiver; 5666 public int mFlags; 5667 5668 public boolean shouldSkipIme() { 5669 if ((mFlags & FLAG_DELIVER_POST_IME) != 0) { 5670 return true; 5671 } 5672 return mEvent instanceof MotionEvent 5673 && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER); 5674 } 5675 5676 public boolean shouldSendToSynthesizer() { 5677 if ((mFlags & FLAG_UNHANDLED) != 0) { 5678 return true; 5679 } 5680 5681 return false; 5682 } 5683 5684 @Override 5685 public String toString() { 5686 StringBuilder sb = new StringBuilder("QueuedInputEvent{flags="); 5687 boolean hasPrevious = false; 5688 hasPrevious = flagToString("DELIVER_POST_IME", FLAG_DELIVER_POST_IME, hasPrevious, sb); 5689 hasPrevious = flagToString("DEFERRED", FLAG_DEFERRED, hasPrevious, sb); 5690 hasPrevious = flagToString("FINISHED", FLAG_FINISHED, hasPrevious, sb); 5691 hasPrevious = flagToString("FINISHED_HANDLED", FLAG_FINISHED_HANDLED, hasPrevious, sb); 5692 hasPrevious = flagToString("RESYNTHESIZED", FLAG_RESYNTHESIZED, hasPrevious, sb); 5693 hasPrevious = flagToString("UNHANDLED", FLAG_UNHANDLED, hasPrevious, sb); 5694 if (!hasPrevious) { 5695 sb.append("0"); 5696 } 5697 sb.append(", hasNextQueuedEvent=" + (mEvent != null ? "true" : "false")); 5698 sb.append(", hasInputEventReceiver=" + (mReceiver != null ? "true" : "false")); 5699 sb.append(", mEvent=" + mEvent + "}"); 5700 return sb.toString(); 5701 } 5702 5703 private boolean flagToString(String name, int flag, 5704 boolean hasPrevious, StringBuilder sb) { 5705 if ((mFlags & flag) != 0) { 5706 if (hasPrevious) { 5707 sb.append("|"); 5708 } 5709 sb.append(name); 5710 return true; 5711 } 5712 return hasPrevious; 5713 } 5714 } 5715 5716 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 5717 InputEventReceiver receiver, int flags) { 5718 QueuedInputEvent q = mQueuedInputEventPool; 5719 if (q != null) { 5720 mQueuedInputEventPoolSize -= 1; 5721 mQueuedInputEventPool = q.mNext; 5722 q.mNext = null; 5723 } else { 5724 q = new QueuedInputEvent(); 5725 } 5726 5727 q.mEvent = event; 5728 q.mReceiver = receiver; 5729 q.mFlags = flags; 5730 return q; 5731 } 5732 5733 private void recycleQueuedInputEvent(QueuedInputEvent q) { 5734 q.mEvent = null; 5735 q.mReceiver = null; 5736 5737 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 5738 mQueuedInputEventPoolSize += 1; 5739 q.mNext = mQueuedInputEventPool; 5740 mQueuedInputEventPool = q; 5741 } 5742 } 5743 5744 void enqueueInputEvent(InputEvent event) { 5745 enqueueInputEvent(event, null, 0, false); 5746 } 5747 5748 void enqueueInputEvent(InputEvent event, 5749 InputEventReceiver receiver, int flags, boolean processImmediately) { 5750 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 5751 5752 // Always enqueue the input event in order, regardless of its time stamp. 5753 // We do this because the application or the IME may inject key events 5754 // in response to touch events and we want to ensure that the injected keys 5755 // are processed in the order they were received and we cannot trust that 5756 // the time stamp of injected events are monotonic. 5757 QueuedInputEvent last = mPendingInputEventTail; 5758 if (last == null) { 5759 mPendingInputEventHead = q; 5760 mPendingInputEventTail = q; 5761 } else { 5762 last.mNext = q; 5763 mPendingInputEventTail = q; 5764 } 5765 mPendingInputEventCount += 1; 5766 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5767 mPendingInputEventCount); 5768 5769 if (processImmediately) { 5770 doProcessInputEvents(); 5771 } else { 5772 scheduleProcessInputEvents(); 5773 } 5774 } 5775 5776 private void scheduleProcessInputEvents() { 5777 if (!mProcessInputEventsScheduled) { 5778 mProcessInputEventsScheduled = true; 5779 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 5780 msg.setAsynchronous(true); 5781 mHandler.sendMessage(msg); 5782 } 5783 } 5784 5785 void doProcessInputEvents() { 5786 // Deliver all pending input events in the queue. 5787 while (mPendingInputEventHead != null) { 5788 QueuedInputEvent q = mPendingInputEventHead; 5789 mPendingInputEventHead = q.mNext; 5790 if (mPendingInputEventHead == null) { 5791 mPendingInputEventTail = null; 5792 } 5793 q.mNext = null; 5794 5795 mPendingInputEventCount -= 1; 5796 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 5797 mPendingInputEventCount); 5798 5799 long eventTime = q.mEvent.getEventTimeNano(); 5800 long oldestEventTime = eventTime; 5801 if (q.mEvent instanceof MotionEvent) { 5802 MotionEvent me = (MotionEvent)q.mEvent; 5803 if (me.getHistorySize() > 0) { 5804 oldestEventTime = me.getHistoricalEventTimeNano(0); 5805 } 5806 } 5807 mChoreographer.mFrameInfo.updateInputEventTime(eventTime, oldestEventTime); 5808 5809 deliverInputEvent(q); 5810 } 5811 5812 // We are done processing all input events that we can process right now 5813 // so we can clear the pending flag immediately. 5814 if (mProcessInputEventsScheduled) { 5815 mProcessInputEventsScheduled = false; 5816 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 5817 } 5818 } 5819 5820 private void deliverInputEvent(QueuedInputEvent q) { 5821 Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5822 q.mEvent.getSequenceNumber()); 5823 if (mInputEventConsistencyVerifier != null) { 5824 mInputEventConsistencyVerifier.onInputEvent(q.mEvent, 0); 5825 } 5826 5827 InputStage stage; 5828 if (q.shouldSendToSynthesizer()) { 5829 stage = mSyntheticInputStage; 5830 } else { 5831 stage = q.shouldSkipIme() ? mFirstPostImeInputStage : mFirstInputStage; 5832 } 5833 5834 if (stage != null) { 5835 stage.deliver(q); 5836 } else { 5837 finishInputEvent(q); 5838 } 5839 } 5840 5841 private void finishInputEvent(QueuedInputEvent q) { 5842 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "deliverInputEvent", 5843 q.mEvent.getSequenceNumber()); 5844 5845 if (q.mReceiver != null) { 5846 boolean handled = (q.mFlags & QueuedInputEvent.FLAG_FINISHED_HANDLED) != 0; 5847 q.mReceiver.finishInputEvent(q.mEvent, handled); 5848 } else { 5849 q.mEvent.recycleIfNeededAfterDispatch(); 5850 } 5851 5852 recycleQueuedInputEvent(q); 5853 } 5854 5855 static boolean isTerminalInputEvent(InputEvent event) { 5856 if (event instanceof KeyEvent) { 5857 final KeyEvent keyEvent = (KeyEvent)event; 5858 return keyEvent.getAction() == KeyEvent.ACTION_UP; 5859 } else { 5860 final MotionEvent motionEvent = (MotionEvent)event; 5861 final int action = motionEvent.getAction(); 5862 return action == MotionEvent.ACTION_UP 5863 || action == MotionEvent.ACTION_CANCEL 5864 || action == MotionEvent.ACTION_HOVER_EXIT; 5865 } 5866 } 5867 5868 void scheduleConsumeBatchedInput() { 5869 if (!mConsumeBatchedInputScheduled) { 5870 mConsumeBatchedInputScheduled = true; 5871 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 5872 mConsumedBatchedInputRunnable, null); 5873 } 5874 } 5875 5876 void unscheduleConsumeBatchedInput() { 5877 if (mConsumeBatchedInputScheduled) { 5878 mConsumeBatchedInputScheduled = false; 5879 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 5880 mConsumedBatchedInputRunnable, null); 5881 } 5882 } 5883 5884 void scheduleConsumeBatchedInputImmediately() { 5885 if (!mConsumeBatchedInputImmediatelyScheduled) { 5886 unscheduleConsumeBatchedInput(); 5887 mConsumeBatchedInputImmediatelyScheduled = true; 5888 mHandler.post(mConsumeBatchedInputImmediatelyRunnable); 5889 } 5890 } 5891 5892 void doConsumeBatchedInput(long frameTimeNanos) { 5893 if (mConsumeBatchedInputScheduled) { 5894 mConsumeBatchedInputScheduled = false; 5895 if (mInputEventReceiver != null) { 5896 if (mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos) 5897 && frameTimeNanos != -1) { 5898 // If we consumed a batch here, we want to go ahead and schedule the 5899 // consumption of batched input events on the next frame. Otherwise, we would 5900 // wait until we have more input events pending and might get starved by other 5901 // things occurring in the process. If the frame time is -1, however, then 5902 // we're in a non-batching mode, so there's no need to schedule this. 5903 scheduleConsumeBatchedInput(); 5904 } 5905 } 5906 doProcessInputEvents(); 5907 } 5908 } 5909 5910 final class TraversalRunnable implements Runnable { 5911 @Override 5912 public void run() { 5913 doTraversal(); 5914 } 5915 } 5916 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 5917 5918 final class WindowInputEventReceiver extends InputEventReceiver { 5919 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 5920 super(inputChannel, looper); 5921 } 5922 5923 @Override 5924 public void onInputEvent(InputEvent event) { 5925 enqueueInputEvent(event, this, 0, true); 5926 } 5927 5928 @Override 5929 public void onBatchedInputEventPending() { 5930 if (mUnbufferedInputDispatch) { 5931 super.onBatchedInputEventPending(); 5932 } else { 5933 scheduleConsumeBatchedInput(); 5934 } 5935 } 5936 5937 @Override 5938 public void dispose() { 5939 unscheduleConsumeBatchedInput(); 5940 super.dispose(); 5941 } 5942 } 5943 WindowInputEventReceiver mInputEventReceiver; 5944 5945 final class ConsumeBatchedInputRunnable implements Runnable { 5946 @Override 5947 public void run() { 5948 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 5949 } 5950 } 5951 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 5952 new ConsumeBatchedInputRunnable(); 5953 boolean mConsumeBatchedInputScheduled; 5954 5955 final class ConsumeBatchedInputImmediatelyRunnable implements Runnable { 5956 @Override 5957 public void run() { 5958 doConsumeBatchedInput(-1); 5959 } 5960 } 5961 final ConsumeBatchedInputImmediatelyRunnable mConsumeBatchedInputImmediatelyRunnable = 5962 new ConsumeBatchedInputImmediatelyRunnable(); 5963 boolean mConsumeBatchedInputImmediatelyScheduled; 5964 5965 final class InvalidateOnAnimationRunnable implements Runnable { 5966 private boolean mPosted; 5967 private final ArrayList<View> mViews = new ArrayList<View>(); 5968 private final ArrayList<AttachInfo.InvalidateInfo> mViewRects = 5969 new ArrayList<AttachInfo.InvalidateInfo>(); 5970 private View[] mTempViews; 5971 private AttachInfo.InvalidateInfo[] mTempViewRects; 5972 5973 public void addView(View view) { 5974 synchronized (this) { 5975 mViews.add(view); 5976 postIfNeededLocked(); 5977 } 5978 } 5979 5980 public void addViewRect(AttachInfo.InvalidateInfo info) { 5981 synchronized (this) { 5982 mViewRects.add(info); 5983 postIfNeededLocked(); 5984 } 5985 } 5986 5987 public void removeView(View view) { 5988 synchronized (this) { 5989 mViews.remove(view); 5990 5991 for (int i = mViewRects.size(); i-- > 0; ) { 5992 AttachInfo.InvalidateInfo info = mViewRects.get(i); 5993 if (info.target == view) { 5994 mViewRects.remove(i); 5995 info.recycle(); 5996 } 5997 } 5998 5999 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 6000 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 6001 mPosted = false; 6002 } 6003 } 6004 } 6005 6006 @Override 6007 public void run() { 6008 final int viewCount; 6009 final int viewRectCount; 6010 synchronized (this) { 6011 mPosted = false; 6012 6013 viewCount = mViews.size(); 6014 if (viewCount != 0) { 6015 mTempViews = mViews.toArray(mTempViews != null 6016 ? mTempViews : new View[viewCount]); 6017 mViews.clear(); 6018 } 6019 6020 viewRectCount = mViewRects.size(); 6021 if (viewRectCount != 0) { 6022 mTempViewRects = mViewRects.toArray(mTempViewRects != null 6023 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 6024 mViewRects.clear(); 6025 } 6026 } 6027 6028 for (int i = 0; i < viewCount; i++) { 6029 mTempViews[i].invalidate(); 6030 mTempViews[i] = null; 6031 } 6032 6033 for (int i = 0; i < viewRectCount; i++) { 6034 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 6035 info.target.invalidate(info.left, info.top, info.right, info.bottom); 6036 info.recycle(); 6037 } 6038 } 6039 6040 private void postIfNeededLocked() { 6041 if (!mPosted) { 6042 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 6043 mPosted = true; 6044 } 6045 } 6046 } 6047 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 6048 new InvalidateOnAnimationRunnable(); 6049 6050 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 6051 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 6052 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6053 } 6054 6055 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 6056 long delayMilliseconds) { 6057 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 6058 mHandler.sendMessageDelayed(msg, delayMilliseconds); 6059 } 6060 6061 public void dispatchInvalidateOnAnimation(View view) { 6062 mInvalidateOnAnimationRunnable.addView(view); 6063 } 6064 6065 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 6066 mInvalidateOnAnimationRunnable.addViewRect(info); 6067 } 6068 6069 public void cancelInvalidate(View view) { 6070 mHandler.removeMessages(MSG_INVALIDATE, view); 6071 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 6072 // them to the pool 6073 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 6074 mInvalidateOnAnimationRunnable.removeView(view); 6075 } 6076 6077 public void dispatchInputEvent(InputEvent event) { 6078 dispatchInputEvent(event, null); 6079 } 6080 6081 public void dispatchInputEvent(InputEvent event, InputEventReceiver receiver) { 6082 SomeArgs args = SomeArgs.obtain(); 6083 args.arg1 = event; 6084 args.arg2 = receiver; 6085 Message msg = mHandler.obtainMessage(MSG_DISPATCH_INPUT_EVENT, args); 6086 msg.setAsynchronous(true); 6087 mHandler.sendMessage(msg); 6088 } 6089 6090 public void synthesizeInputEvent(InputEvent event) { 6091 Message msg = mHandler.obtainMessage(MSG_SYNTHESIZE_INPUT_EVENT, event); 6092 msg.setAsynchronous(true); 6093 mHandler.sendMessage(msg); 6094 } 6095 6096 public void dispatchKeyFromIme(KeyEvent event) { 6097 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 6098 msg.setAsynchronous(true); 6099 mHandler.sendMessage(msg); 6100 } 6101 6102 /** 6103 * Reinject unhandled {@link InputEvent}s in order to synthesize fallbacks events. 6104 * 6105 * Note that it is the responsibility of the caller of this API to recycle the InputEvent it 6106 * passes in. 6107 */ 6108 public void dispatchUnhandledInputEvent(InputEvent event) { 6109 if (event instanceof MotionEvent) { 6110 event = MotionEvent.obtain((MotionEvent) event); 6111 } 6112 synthesizeInputEvent(event); 6113 } 6114 6115 public void dispatchAppVisibility(boolean visible) { 6116 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 6117 msg.arg1 = visible ? 1 : 0; 6118 mHandler.sendMessage(msg); 6119 } 6120 6121 public void dispatchGetNewSurface() { 6122 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 6123 mHandler.sendMessage(msg); 6124 } 6125 6126 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6127 Message msg = Message.obtain(); 6128 msg.what = MSG_WINDOW_FOCUS_CHANGED; 6129 msg.arg1 = hasFocus ? 1 : 0; 6130 msg.arg2 = inTouchMode ? 1 : 0; 6131 mHandler.sendMessage(msg); 6132 } 6133 6134 public void dispatchWindowShown() { 6135 mHandler.sendEmptyMessage(MSG_DISPATCH_WINDOW_SHOWN); 6136 } 6137 6138 public void dispatchCloseSystemDialogs(String reason) { 6139 Message msg = Message.obtain(); 6140 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 6141 msg.obj = reason; 6142 mHandler.sendMessage(msg); 6143 } 6144 6145 public void dispatchDragEvent(DragEvent event) { 6146 final int what; 6147 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 6148 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 6149 mHandler.removeMessages(what); 6150 } else { 6151 what = MSG_DISPATCH_DRAG_EVENT; 6152 } 6153 Message msg = mHandler.obtainMessage(what, event); 6154 mHandler.sendMessage(msg); 6155 } 6156 6157 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6158 int localValue, int localChanges) { 6159 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 6160 args.seq = seq; 6161 args.globalVisibility = globalVisibility; 6162 args.localValue = localValue; 6163 args.localChanges = localChanges; 6164 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 6165 } 6166 6167 public void dispatchDoneAnimating() { 6168 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 6169 } 6170 6171 public void dispatchCheckFocus() { 6172 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 6173 // This will result in a call to checkFocus() below. 6174 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 6175 } 6176 } 6177 6178 /** 6179 * Post a callback to send a 6180 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6181 * This event is send at most once every 6182 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 6183 */ 6184 private void postSendWindowContentChangedCallback(View source, int changeType) { 6185 if (mSendWindowContentChangedAccessibilityEvent == null) { 6186 mSendWindowContentChangedAccessibilityEvent = 6187 new SendWindowContentChangedAccessibilityEvent(); 6188 } 6189 mSendWindowContentChangedAccessibilityEvent.runOrPost(source, changeType); 6190 } 6191 6192 /** 6193 * Remove a posted callback to send a 6194 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 6195 */ 6196 private void removeSendWindowContentChangedCallback() { 6197 if (mSendWindowContentChangedAccessibilityEvent != null) { 6198 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 6199 } 6200 } 6201 6202 @Override 6203 public boolean showContextMenuForChild(View originalView) { 6204 return false; 6205 } 6206 6207 @Override 6208 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 6209 return null; 6210 } 6211 6212 @Override 6213 public ActionMode startActionModeForChild( 6214 View originalView, ActionMode.Callback callback, int type) { 6215 return null; 6216 } 6217 6218 @Override 6219 public void createContextMenu(ContextMenu menu) { 6220 } 6221 6222 @Override 6223 public void childDrawableStateChanged(View child) { 6224 } 6225 6226 @Override 6227 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 6228 if (mView == null) { 6229 return false; 6230 } 6231 // Intercept accessibility focus events fired by virtual nodes to keep 6232 // track of accessibility focus position in such nodes. 6233 final int eventType = event.getEventType(); 6234 switch (eventType) { 6235 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 6236 final long sourceNodeId = event.getSourceNodeId(); 6237 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6238 sourceNodeId); 6239 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6240 if (source != null) { 6241 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6242 if (provider != null) { 6243 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 6244 sourceNodeId); 6245 final AccessibilityNodeInfo node; 6246 if (virtualNodeId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6247 node = provider.createAccessibilityNodeInfo( 6248 AccessibilityNodeProvider.HOST_VIEW_ID); 6249 } else { 6250 node = provider.createAccessibilityNodeInfo(virtualNodeId); 6251 } 6252 setAccessibilityFocus(source, node); 6253 } 6254 } 6255 } break; 6256 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 6257 final long sourceNodeId = event.getSourceNodeId(); 6258 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 6259 sourceNodeId); 6260 View source = mView.findViewByAccessibilityId(accessibilityViewId); 6261 if (source != null) { 6262 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 6263 if (provider != null) { 6264 setAccessibilityFocus(null, null); 6265 } 6266 } 6267 } break; 6268 6269 6270 case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: { 6271 handleWindowContentChangedEvent(event); 6272 } break; 6273 } 6274 mAccessibilityManager.sendAccessibilityEvent(event); 6275 return true; 6276 } 6277 6278 /** 6279 * Updates the focused virtual view, when necessary, in response to a 6280 * content changed event. 6281 * <p> 6282 * This is necessary to get updated bounds after a position change. 6283 * 6284 * @param event an accessibility event of type 6285 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} 6286 */ 6287 private void handleWindowContentChangedEvent(AccessibilityEvent event) { 6288 // No virtual view focused, nothing to do here. 6289 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedVirtualView == null) { 6290 return; 6291 } 6292 6293 // If we have a node but no provider, abort. 6294 final AccessibilityNodeProvider provider = 6295 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 6296 if (provider == null) { 6297 // TODO: Should we clear the focused virtual view? 6298 return; 6299 } 6300 6301 // We only care about change types that may affect the bounds of the 6302 // focused virtual view. 6303 final int changes = event.getContentChangeTypes(); 6304 if ((changes & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) == 0 6305 && changes != AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) { 6306 return; 6307 } 6308 6309 final long eventSourceNodeId = event.getSourceNodeId(); 6310 final int changedViewId = AccessibilityNodeInfo.getAccessibilityViewId(eventSourceNodeId); 6311 6312 // Search up the tree for subtree containment. 6313 boolean hostInSubtree = false; 6314 View root = mAccessibilityFocusedHost; 6315 while (root != null && !hostInSubtree) { 6316 if (changedViewId == root.getAccessibilityViewId()) { 6317 hostInSubtree = true; 6318 } else { 6319 final ViewParent parent = root.getParent(); 6320 if (parent instanceof View) { 6321 root = (View) parent; 6322 } else { 6323 root = null; 6324 } 6325 } 6326 } 6327 6328 // We care only about changes in subtrees containing the host view. 6329 if (!hostInSubtree) { 6330 return; 6331 } 6332 6333 final long focusedSourceNodeId = mAccessibilityFocusedVirtualView.getSourceNodeId(); 6334 int focusedChildId = AccessibilityNodeInfo.getVirtualDescendantId(focusedSourceNodeId); 6335 if (focusedChildId == AccessibilityNodeInfo.UNDEFINED_ITEM_ID) { 6336 // TODO: Should we clear the focused virtual view? 6337 focusedChildId = AccessibilityNodeProvider.HOST_VIEW_ID; 6338 } 6339 6340 // Refresh the node for the focused virtual view. 6341 mAccessibilityFocusedVirtualView = provider.createAccessibilityNodeInfo(focusedChildId); 6342 } 6343 6344 @Override 6345 public void notifySubtreeAccessibilityStateChanged(View child, View source, int changeType) { 6346 postSendWindowContentChangedCallback(source, changeType); 6347 } 6348 6349 @Override 6350 public boolean canResolveLayoutDirection() { 6351 return true; 6352 } 6353 6354 @Override 6355 public boolean isLayoutDirectionResolved() { 6356 return true; 6357 } 6358 6359 @Override 6360 public int getLayoutDirection() { 6361 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 6362 } 6363 6364 @Override 6365 public boolean canResolveTextDirection() { 6366 return true; 6367 } 6368 6369 @Override 6370 public boolean isTextDirectionResolved() { 6371 return true; 6372 } 6373 6374 @Override 6375 public int getTextDirection() { 6376 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 6377 } 6378 6379 @Override 6380 public boolean canResolveTextAlignment() { 6381 return true; 6382 } 6383 6384 @Override 6385 public boolean isTextAlignmentResolved() { 6386 return true; 6387 } 6388 6389 @Override 6390 public int getTextAlignment() { 6391 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 6392 } 6393 6394 private View getCommonPredecessor(View first, View second) { 6395 if (mTempHashSet == null) { 6396 mTempHashSet = new HashSet<View>(); 6397 } 6398 HashSet<View> seen = mTempHashSet; 6399 seen.clear(); 6400 View firstCurrent = first; 6401 while (firstCurrent != null) { 6402 seen.add(firstCurrent); 6403 ViewParent firstCurrentParent = firstCurrent.mParent; 6404 if (firstCurrentParent instanceof View) { 6405 firstCurrent = (View) firstCurrentParent; 6406 } else { 6407 firstCurrent = null; 6408 } 6409 } 6410 View secondCurrent = second; 6411 while (secondCurrent != null) { 6412 if (seen.contains(secondCurrent)) { 6413 seen.clear(); 6414 return secondCurrent; 6415 } 6416 ViewParent secondCurrentParent = secondCurrent.mParent; 6417 if (secondCurrentParent instanceof View) { 6418 secondCurrent = (View) secondCurrentParent; 6419 } else { 6420 secondCurrent = null; 6421 } 6422 } 6423 seen.clear(); 6424 return null; 6425 } 6426 6427 void checkThread() { 6428 if (mThread != Thread.currentThread()) { 6429 throw new CalledFromWrongThreadException( 6430 "Only the original thread that created a view hierarchy can touch its views."); 6431 } 6432 } 6433 6434 @Override 6435 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 6436 // ViewAncestor never intercepts touch event, so this can be a no-op 6437 } 6438 6439 @Override 6440 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 6441 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 6442 if (rectangle != null) { 6443 mTempRect.set(rectangle); 6444 mTempRect.offset(0, -mCurScrollY); 6445 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 6446 try { 6447 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect); 6448 } catch (RemoteException re) { 6449 /* ignore */ 6450 } 6451 } 6452 return scrolled; 6453 } 6454 6455 @Override 6456 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 6457 // Do nothing. 6458 } 6459 6460 @Override 6461 public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 6462 return false; 6463 } 6464 6465 @Override 6466 public void onStopNestedScroll(View target) { 6467 } 6468 6469 @Override 6470 public void onNestedScrollAccepted(View child, View target, int nestedScrollAxes) { 6471 } 6472 6473 @Override 6474 public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 6475 int dxUnconsumed, int dyUnconsumed) { 6476 } 6477 6478 @Override 6479 public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) { 6480 } 6481 6482 @Override 6483 public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 6484 return false; 6485 } 6486 6487 @Override 6488 public boolean onNestedPreFling(View target, float velocityX, float velocityY) { 6489 return false; 6490 } 6491 6492 @Override 6493 public boolean onNestedPrePerformAccessibilityAction(View target, int action, Bundle args) { 6494 return false; 6495 } 6496 6497 void changeCanvasOpacity(boolean opaque) { 6498 Log.d(TAG, "changeCanvasOpacity: opaque=" + opaque); 6499 if (mAttachInfo.mHardwareRenderer != null) { 6500 mAttachInfo.mHardwareRenderer.setOpaque(opaque); 6501 } 6502 } 6503 6504 class TakenSurfaceHolder extends BaseSurfaceHolder { 6505 @Override 6506 public boolean onAllowLockCanvas() { 6507 return mDrawingAllowed; 6508 } 6509 6510 @Override 6511 public void onRelayoutContainer() { 6512 // Not currently interesting -- from changing between fixed and layout size. 6513 } 6514 6515 @Override 6516 public void setFormat(int format) { 6517 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 6518 } 6519 6520 @Override 6521 public void setType(int type) { 6522 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 6523 } 6524 6525 @Override 6526 public void onUpdateSurface() { 6527 // We take care of format and type changes on our own. 6528 throw new IllegalStateException("Shouldn't be here"); 6529 } 6530 6531 @Override 6532 public boolean isCreating() { 6533 return mIsCreating; 6534 } 6535 6536 @Override 6537 public void setFixedSize(int width, int height) { 6538 throw new UnsupportedOperationException( 6539 "Currently only support sizing from layout"); 6540 } 6541 6542 @Override 6543 public void setKeepScreenOn(boolean screenOn) { 6544 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 6545 } 6546 } 6547 6548 static class W extends IWindow.Stub { 6549 private final WeakReference<ViewRootImpl> mViewAncestor; 6550 private final IWindowSession mWindowSession; 6551 6552 W(ViewRootImpl viewAncestor) { 6553 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 6554 mWindowSession = viewAncestor.mWindowSession; 6555 } 6556 6557 @Override 6558 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 6559 Rect visibleInsets, Rect stableInsets, boolean reportDraw, 6560 Configuration newConfig) { 6561 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6562 if (viewAncestor != null) { 6563 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 6564 visibleInsets, stableInsets, reportDraw, newConfig); 6565 } 6566 } 6567 6568 @Override 6569 public void moved(int newX, int newY) { 6570 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6571 if (viewAncestor != null) { 6572 viewAncestor.dispatchMoved(newX, newY); 6573 } 6574 } 6575 6576 @Override 6577 public void dispatchAppVisibility(boolean visible) { 6578 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6579 if (viewAncestor != null) { 6580 viewAncestor.dispatchAppVisibility(visible); 6581 } 6582 } 6583 6584 @Override 6585 public void dispatchGetNewSurface() { 6586 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6587 if (viewAncestor != null) { 6588 viewAncestor.dispatchGetNewSurface(); 6589 } 6590 } 6591 6592 @Override 6593 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 6594 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6595 if (viewAncestor != null) { 6596 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 6597 } 6598 } 6599 6600 private static int checkCallingPermission(String permission) { 6601 try { 6602 return ActivityManagerNative.getDefault().checkPermission( 6603 permission, Binder.getCallingPid(), Binder.getCallingUid()); 6604 } catch (RemoteException e) { 6605 return PackageManager.PERMISSION_DENIED; 6606 } 6607 } 6608 6609 @Override 6610 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 6611 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6612 if (viewAncestor != null) { 6613 final View view = viewAncestor.mView; 6614 if (view != null) { 6615 if (checkCallingPermission(Manifest.permission.DUMP) != 6616 PackageManager.PERMISSION_GRANTED) { 6617 throw new SecurityException("Insufficient permissions to invoke" 6618 + " executeCommand() from pid=" + Binder.getCallingPid() 6619 + ", uid=" + Binder.getCallingUid()); 6620 } 6621 6622 OutputStream clientStream = null; 6623 try { 6624 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 6625 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 6626 } catch (IOException e) { 6627 e.printStackTrace(); 6628 } finally { 6629 if (clientStream != null) { 6630 try { 6631 clientStream.close(); 6632 } catch (IOException e) { 6633 e.printStackTrace(); 6634 } 6635 } 6636 } 6637 } 6638 } 6639 } 6640 6641 @Override 6642 public void closeSystemDialogs(String reason) { 6643 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6644 if (viewAncestor != null) { 6645 viewAncestor.dispatchCloseSystemDialogs(reason); 6646 } 6647 } 6648 6649 @Override 6650 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 6651 boolean sync) { 6652 if (sync) { 6653 try { 6654 mWindowSession.wallpaperOffsetsComplete(asBinder()); 6655 } catch (RemoteException e) { 6656 } 6657 } 6658 } 6659 6660 @Override 6661 public void dispatchWallpaperCommand(String action, int x, int y, 6662 int z, Bundle extras, boolean sync) { 6663 if (sync) { 6664 try { 6665 mWindowSession.wallpaperCommandComplete(asBinder(), null); 6666 } catch (RemoteException e) { 6667 } 6668 } 6669 } 6670 6671 /* Drag/drop */ 6672 @Override 6673 public void dispatchDragEvent(DragEvent event) { 6674 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6675 if (viewAncestor != null) { 6676 viewAncestor.dispatchDragEvent(event); 6677 } 6678 } 6679 6680 @Override 6681 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 6682 int localValue, int localChanges) { 6683 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6684 if (viewAncestor != null) { 6685 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 6686 localValue, localChanges); 6687 } 6688 } 6689 6690 @Override 6691 public void doneAnimating() { 6692 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6693 if (viewAncestor != null) { 6694 viewAncestor.dispatchDoneAnimating(); 6695 } 6696 } 6697 6698 @Override 6699 public void dispatchWindowShown() { 6700 final ViewRootImpl viewAncestor = mViewAncestor.get(); 6701 if (viewAncestor != null) { 6702 viewAncestor.dispatchWindowShown(); 6703 } 6704 } 6705 } 6706 6707 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 6708 public CalledFromWrongThreadException(String msg) { 6709 super(msg); 6710 } 6711 } 6712 6713 static RunQueue getRunQueue() { 6714 RunQueue rq = sRunQueues.get(); 6715 if (rq != null) { 6716 return rq; 6717 } 6718 rq = new RunQueue(); 6719 sRunQueues.set(rq); 6720 return rq; 6721 } 6722 6723 /** 6724 * The run queue is used to enqueue pending work from Views when no Handler is 6725 * attached. The work is executed during the next call to performTraversals on 6726 * the thread. 6727 * @hide 6728 */ 6729 static final class RunQueue { 6730 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 6731 6732 void post(Runnable action) { 6733 postDelayed(action, 0); 6734 } 6735 6736 void postDelayed(Runnable action, long delayMillis) { 6737 HandlerAction handlerAction = new HandlerAction(); 6738 handlerAction.action = action; 6739 handlerAction.delay = delayMillis; 6740 6741 synchronized (mActions) { 6742 mActions.add(handlerAction); 6743 } 6744 } 6745 6746 void removeCallbacks(Runnable action) { 6747 final HandlerAction handlerAction = new HandlerAction(); 6748 handlerAction.action = action; 6749 6750 synchronized (mActions) { 6751 final ArrayList<HandlerAction> actions = mActions; 6752 6753 while (actions.remove(handlerAction)) { 6754 // Keep going 6755 } 6756 } 6757 } 6758 6759 void executeActions(Handler handler) { 6760 synchronized (mActions) { 6761 final ArrayList<HandlerAction> actions = mActions; 6762 final int count = actions.size(); 6763 6764 for (int i = 0; i < count; i++) { 6765 final HandlerAction handlerAction = actions.get(i); 6766 handler.postDelayed(handlerAction.action, handlerAction.delay); 6767 } 6768 6769 actions.clear(); 6770 } 6771 } 6772 6773 private static class HandlerAction { 6774 Runnable action; 6775 long delay; 6776 6777 @Override 6778 public boolean equals(Object o) { 6779 if (this == o) return true; 6780 if (o == null || getClass() != o.getClass()) return false; 6781 6782 HandlerAction that = (HandlerAction) o; 6783 return !(action != null ? !action.equals(that.action) : that.action != null); 6784 6785 } 6786 6787 @Override 6788 public int hashCode() { 6789 int result = action != null ? action.hashCode() : 0; 6790 result = 31 * result + (int) (delay ^ (delay >>> 32)); 6791 return result; 6792 } 6793 } 6794 } 6795 6796 /** 6797 * Class for managing the accessibility interaction connection 6798 * based on the global accessibility state. 6799 */ 6800 final class AccessibilityInteractionConnectionManager 6801 implements AccessibilityStateChangeListener { 6802 @Override 6803 public void onAccessibilityStateChanged(boolean enabled) { 6804 if (enabled) { 6805 ensureConnection(); 6806 if (mAttachInfo.mHasWindowFocus) { 6807 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 6808 View focusedView = mView.findFocus(); 6809 if (focusedView != null && focusedView != mView) { 6810 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 6811 } 6812 } 6813 } else { 6814 ensureNoConnection(); 6815 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 6816 } 6817 } 6818 6819 public void ensureConnection() { 6820 final boolean registered = 6821 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6822 if (!registered) { 6823 mAttachInfo.mAccessibilityWindowId = 6824 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 6825 new AccessibilityInteractionConnection(ViewRootImpl.this)); 6826 } 6827 } 6828 6829 public void ensureNoConnection() { 6830 final boolean registered = 6831 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6832 if (registered) { 6833 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID; 6834 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 6835 } 6836 } 6837 } 6838 6839 final class HighContrastTextManager implements HighTextContrastChangeListener { 6840 HighContrastTextManager() { 6841 mAttachInfo.mHighContrastText = mAccessibilityManager.isHighTextContrastEnabled(); 6842 } 6843 @Override 6844 public void onHighTextContrastStateChanged(boolean enabled) { 6845 mAttachInfo.mHighContrastText = enabled; 6846 6847 // Destroy Displaylists so they can be recreated with high contrast recordings 6848 destroyHardwareResources(); 6849 6850 // Schedule redraw, which will rerecord + redraw all text 6851 invalidate(); 6852 } 6853 } 6854 6855 /** 6856 * This class is an interface this ViewAncestor provides to the 6857 * AccessibilityManagerService to the latter can interact with 6858 * the view hierarchy in this ViewAncestor. 6859 */ 6860 static final class AccessibilityInteractionConnection 6861 extends IAccessibilityInteractionConnection.Stub { 6862 private final WeakReference<ViewRootImpl> mViewRootImpl; 6863 6864 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 6865 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 6866 } 6867 6868 @Override 6869 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 6870 Region interactiveRegion, int interactionId, 6871 IAccessibilityInteractionConnectionCallback callback, int flags, 6872 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6873 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6874 if (viewRootImpl != null && viewRootImpl.mView != null) { 6875 viewRootImpl.getAccessibilityInteractionController() 6876 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 6877 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6878 interrogatingTid, spec); 6879 } else { 6880 // We cannot make the call and notify the caller so it does not wait. 6881 try { 6882 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6883 } catch (RemoteException re) { 6884 /* best effort - ignore */ 6885 } 6886 } 6887 } 6888 6889 @Override 6890 public void performAccessibilityAction(long accessibilityNodeId, int action, 6891 Bundle arguments, int interactionId, 6892 IAccessibilityInteractionConnectionCallback callback, int flags, 6893 int interrogatingPid, long interrogatingTid) { 6894 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6895 if (viewRootImpl != null && viewRootImpl.mView != null) { 6896 viewRootImpl.getAccessibilityInteractionController() 6897 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 6898 interactionId, callback, flags, interrogatingPid, interrogatingTid); 6899 } else { 6900 // We cannot make the call and notify the caller so it does not wait. 6901 try { 6902 callback.setPerformAccessibilityActionResult(false, interactionId); 6903 } catch (RemoteException re) { 6904 /* best effort - ignore */ 6905 } 6906 } 6907 } 6908 6909 @Override 6910 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 6911 String viewId, Region interactiveRegion, int interactionId, 6912 IAccessibilityInteractionConnectionCallback callback, int flags, 6913 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6914 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6915 if (viewRootImpl != null && viewRootImpl.mView != null) { 6916 viewRootImpl.getAccessibilityInteractionController() 6917 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 6918 viewId, interactiveRegion, interactionId, callback, flags, 6919 interrogatingPid, interrogatingTid, spec); 6920 } else { 6921 // We cannot make the call and notify the caller so it does not wait. 6922 try { 6923 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6924 } catch (RemoteException re) { 6925 /* best effort - ignore */ 6926 } 6927 } 6928 } 6929 6930 @Override 6931 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 6932 Region interactiveRegion, int interactionId, 6933 IAccessibilityInteractionConnectionCallback callback, int flags, 6934 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6935 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6936 if (viewRootImpl != null && viewRootImpl.mView != null) { 6937 viewRootImpl.getAccessibilityInteractionController() 6938 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 6939 interactiveRegion, interactionId, callback, flags, interrogatingPid, 6940 interrogatingTid, spec); 6941 } else { 6942 // We cannot make the call and notify the caller so it does not wait. 6943 try { 6944 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 6945 } catch (RemoteException re) { 6946 /* best effort - ignore */ 6947 } 6948 } 6949 } 6950 6951 @Override 6952 public void findFocus(long accessibilityNodeId, int focusType, Region interactiveRegion, 6953 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6954 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6955 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6956 if (viewRootImpl != null && viewRootImpl.mView != null) { 6957 viewRootImpl.getAccessibilityInteractionController() 6958 .findFocusClientThread(accessibilityNodeId, focusType, interactiveRegion, 6959 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6960 spec); 6961 } else { 6962 // We cannot make the call and notify the caller so it does not wait. 6963 try { 6964 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6965 } catch (RemoteException re) { 6966 /* best effort - ignore */ 6967 } 6968 } 6969 } 6970 6971 @Override 6972 public void focusSearch(long accessibilityNodeId, int direction, Region interactiveRegion, 6973 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 6974 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 6975 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 6976 if (viewRootImpl != null && viewRootImpl.mView != null) { 6977 viewRootImpl.getAccessibilityInteractionController() 6978 .focusSearchClientThread(accessibilityNodeId, direction, interactiveRegion, 6979 interactionId, callback, flags, interrogatingPid, interrogatingTid, 6980 spec); 6981 } else { 6982 // We cannot make the call and notify the caller so it does not wait. 6983 try { 6984 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 6985 } catch (RemoteException re) { 6986 /* best effort - ignore */ 6987 } 6988 } 6989 } 6990 } 6991 6992 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 6993 private int mChangeTypes = 0; 6994 6995 public View mSource; 6996 public long mLastEventTimeMillis; 6997 6998 @Override 6999 public void run() { 7000 // The accessibility may be turned off while we were waiting so check again. 7001 if (AccessibilityManager.getInstance(mContext).isEnabled()) { 7002 mLastEventTimeMillis = SystemClock.uptimeMillis(); 7003 AccessibilityEvent event = AccessibilityEvent.obtain(); 7004 event.setEventType(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 7005 event.setContentChangeTypes(mChangeTypes); 7006 mSource.sendAccessibilityEventUnchecked(event); 7007 } else { 7008 mLastEventTimeMillis = 0; 7009 } 7010 // In any case reset to initial state. 7011 mSource.resetSubtreeAccessibilityStateChanged(); 7012 mSource = null; 7013 mChangeTypes = 0; 7014 } 7015 7016 public void runOrPost(View source, int changeType) { 7017 if (mSource != null) { 7018 // If there is no common predecessor, then mSource points to 7019 // a removed view, hence in this case always prefer the source. 7020 View predecessor = getCommonPredecessor(mSource, source); 7021 mSource = (predecessor != null) ? predecessor : source; 7022 mChangeTypes |= changeType; 7023 return; 7024 } 7025 mSource = source; 7026 mChangeTypes = changeType; 7027 final long timeSinceLastMillis = SystemClock.uptimeMillis() - mLastEventTimeMillis; 7028 final long minEventIntevalMillis = 7029 ViewConfiguration.getSendRecurringAccessibilityEventsInterval(); 7030 if (timeSinceLastMillis >= minEventIntevalMillis) { 7031 mSource.removeCallbacks(this); 7032 run(); 7033 } else { 7034 mSource.postDelayed(this, minEventIntevalMillis - timeSinceLastMillis); 7035 } 7036 } 7037 } 7038} 7039