ViewRootImpl.java revision 82fa5ffbbc4a0b9842c809d0d4fdbec622819f38
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.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 129 130 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 131 static boolean sFirstDrawComplete = false; 132 133 static final ArrayList<ComponentCallbacks> sConfigCallbacks 134 = new ArrayList<ComponentCallbacks>(); 135 136 private static boolean sUseRenderThread = false; 137 private static boolean sRenderThreadQueried = false; 138 private static final Object[] sRenderThreadQueryLock = new Object[0]; 139 140 final IWindowSession mWindowSession; 141 final Display mDisplay; 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 final SimulatedTrackball mSimulatedTrackball = new SimulatedTrackball(); 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 final int mTargetSdkVersion; 168 169 int mSeq; 170 171 View mView; 172 View mFocusedView; 173 View mRealFocusedView; // this is not set to null in touch mode 174 View mOldFocusedView; 175 176 View mAccessibilityFocusedHost; 177 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 178 179 int mViewVisibility; 180 boolean mAppVisible = true; 181 int mOrigWindowType = -1; 182 183 // Set to true if the owner of this window is in the stopped state, 184 // so the window should no longer be active. 185 boolean mStopped = false; 186 187 boolean mLastInCompatMode = false; 188 189 SurfaceHolder.Callback2 mSurfaceHolderCallback; 190 BaseSurfaceHolder mSurfaceHolder; 191 boolean mIsCreating; 192 boolean mDrawingAllowed; 193 194 final Region mTransparentRegion; 195 final Region mPreviousTransparentRegion; 196 197 int mWidth; 198 int mHeight; 199 Rect mDirty; 200 final Rect mCurrentDirty = new Rect(); 201 final Rect mPreviousDirty = new Rect(); 202 boolean mIsAnimating; 203 204 CompatibilityInfo.Translator mTranslator; 205 206 final View.AttachInfo mAttachInfo; 207 InputChannel mInputChannel; 208 InputQueue.Callback mInputQueueCallback; 209 InputQueue mInputQueue; 210 FallbackEventHandler mFallbackEventHandler; 211 Choreographer mChoreographer; 212 213 final Rect mTempRect; // used in the transaction to not thrash the heap. 214 final Rect mVisRect; // used to retrieve visible rect of focused view. 215 216 boolean mTraversalScheduled; 217 int mTraversalBarrier; 218 boolean mWillDrawSoon; 219 /** Set to true while in performTraversals for detecting when die(true) is called from internal 220 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 221 boolean mIsInTraversal; 222 boolean mFitSystemWindowsRequested; 223 boolean mLayoutRequested; 224 boolean mFirst; 225 boolean mReportNextDraw; 226 boolean mFullRedrawNeeded; 227 boolean mNewSurfaceNeeded; 228 boolean mHasHadWindowFocus; 229 boolean mLastWasImTarget; 230 boolean mWindowsAnimating; 231 boolean mIsDrawing; 232 int mLastSystemUiVisibility; 233 int mClientWindowLayoutFlags; 234 235 // Pool of queued input events. 236 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 237 private QueuedInputEvent mQueuedInputEventPool; 238 private int mQueuedInputEventPoolSize; 239 240 // Input event queue. 241 QueuedInputEvent mFirstPendingInputEvent; 242 QueuedInputEvent mCurrentInputEvent; 243 boolean mProcessInputEventsScheduled; 244 245 boolean mWindowAttributesChanged = false; 246 int mWindowAttributesChangesFlag = 0; 247 248 // These can be accessed by any thread, must be protected with a lock. 249 // Surface can never be reassigned or cleared (use Surface.clear()). 250 private final Surface mSurface = new Surface(); 251 252 boolean mAdded; 253 boolean mAddedTouchMode; 254 255 final CompatibilityInfoHolder mCompatibilityInfo; 256 257 // These are accessed by multiple threads. 258 final Rect mWinFrame; // frame given by window manager. 259 260 final Rect mPendingVisibleInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mFitSystemWindowsInsets = new Rect(); 266 267 final Configuration mLastConfiguration = new Configuration(); 268 final Configuration mPendingConfiguration = new Configuration(); 269 270 boolean mScrollMayChange; 271 int mSoftInputMode; 272 View mLastScrolledFocus; 273 int mScrollY; 274 int mCurScrollY; 275 Scroller mScroller; 276 HardwareLayer mResizeBuffer; 277 long mResizeBufferStartTime; 278 int mResizeBufferDuration; 279 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 280 private ArrayList<LayoutTransition> mPendingTransitions; 281 282 final ViewConfiguration mViewConfiguration; 283 284 /* Drag/drop */ 285 ClipDescription mDragDescription; 286 View mCurrentDragView; 287 volatile Object mLocalDragState; 288 final PointF mDragPoint = new PointF(); 289 final PointF mLastTouchPoint = new PointF(); 290 291 private boolean mProfileRendering; 292 private Thread mRenderProfiler; 293 private volatile boolean mRenderProfilingEnabled; 294 295 // Variables to track frames per second, enabled via DEBUG_FPS flag 296 private long mFpsStartTime = -1; 297 private long mFpsPrevTime = -1; 298 private int mFpsNumFrames; 299 300 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 301 302 /** 303 * see {@link #playSoundEffect(int)} 304 */ 305 AudioManager mAudioManager; 306 307 final AccessibilityManager mAccessibilityManager; 308 309 AccessibilityInteractionController mAccessibilityInteractionController; 310 311 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 312 313 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 314 315 HashSet<View> mTempHashSet; 316 317 private final int mDensity; 318 private final int mNoncompatDensity; 319 320 private boolean mInLayout = false; 321 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 322 boolean mHandlingLayoutInLayoutRequest = false; 323 324 325 /** 326 * Consistency verifier for debugging purposes. 327 */ 328 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 329 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 330 new InputEventConsistencyVerifier(this, 0) : null; 331 332 static final class SystemUiVisibilityInfo { 333 int seq; 334 int globalVisibility; 335 int localValue; 336 int localChanges; 337 } 338 339 public ViewRootImpl(Context context, Display display) { 340 super(); 341 342 if (MEASURE_LATENCY) { 343 if (lt == null) { 344 lt = new LatencyTimer(100, 1000); 345 } 346 } 347 348 // Initialize the statics when this class is first instantiated. This is 349 // done here instead of in the static block because Zygote does not 350 // allow the spawning of threads. 351 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 352 mDisplay = display; 353 354 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 355 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 356 357 mThread = Thread.currentThread(); 358 mLocation = new WindowLeaked(null); 359 mLocation.fillInStackTrace(); 360 mWidth = -1; 361 mHeight = -1; 362 mDirty = new Rect(); 363 mTempRect = new Rect(); 364 mVisRect = new Rect(); 365 mWinFrame = new Rect(); 366 mWindow = new W(this); 367 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 368 mInputMethodCallback = new InputMethodCallback(this); 369 mViewVisibility = View.GONE; 370 mTransparentRegion = new Region(); 371 mPreviousTransparentRegion = new Region(); 372 mFirst = true; // true for the first time the view is added 373 mAdded = false; 374 mAccessibilityManager = AccessibilityManager.getInstance(context); 375 mAccessibilityInteractionConnectionManager = 376 new AccessibilityInteractionConnectionManager(); 377 mAccessibilityManager.addAccessibilityStateChangeListener( 378 mAccessibilityInteractionConnectionManager); 379 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 380 mViewConfiguration = ViewConfiguration.get(context); 381 mDensity = context.getResources().getDisplayMetrics().densityDpi; 382 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 383 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 384 mProfileRendering = Boolean.parseBoolean( 385 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 386 mChoreographer = Choreographer.getInstance(); 387 388 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 389 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 390 loadSystemProperties(); 391 } 392 393 /** 394 * @return True if the application requests the use of a separate render thread, 395 * false otherwise 396 */ 397 private static boolean isRenderThreadRequested(Context context) { 398 if (USE_RENDER_THREAD) { 399 synchronized (sRenderThreadQueryLock) { 400 if (!sRenderThreadQueried) { 401 final PackageManager packageManager = context.getPackageManager(); 402 final String packageName = context.getApplicationInfo().packageName; 403 try { 404 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 405 PackageManager.GET_META_DATA); 406 if (applicationInfo.metaData != null) { 407 sUseRenderThread = applicationInfo.metaData.getBoolean( 408 "android.graphics.renderThread", false); 409 } 410 } catch (PackageManager.NameNotFoundException e) { 411 } finally { 412 sRenderThreadQueried = true; 413 } 414 } 415 return sUseRenderThread; 416 } 417 } else { 418 return false; 419 } 420 } 421 422 public static void addFirstDrawHandler(Runnable callback) { 423 synchronized (sFirstDrawHandlers) { 424 if (!sFirstDrawComplete) { 425 sFirstDrawHandlers.add(callback); 426 } 427 } 428 } 429 430 public static void addConfigCallback(ComponentCallbacks callback) { 431 synchronized (sConfigCallbacks) { 432 sConfigCallbacks.add(callback); 433 } 434 } 435 436 // FIXME for perf testing only 437 private boolean mProfile = false; 438 439 /** 440 * Call this to profile the next traversal call. 441 * FIXME for perf testing only. Remove eventually 442 */ 443 public void profile() { 444 mProfile = true; 445 } 446 447 /** 448 * Indicates whether we are in touch mode. Calling this method triggers an IPC 449 * call and should be avoided whenever possible. 450 * 451 * @return True, if the device is in touch mode, false otherwise. 452 * 453 * @hide 454 */ 455 static boolean isInTouchMode() { 456 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 457 if (windowSession != null) { 458 try { 459 return windowSession.getInTouchMode(); 460 } catch (RemoteException e) { 461 } 462 } 463 return false; 464 } 465 466 /** 467 * We have one child 468 */ 469 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 470 synchronized (this) { 471 if (mView == null) { 472 mView = view; 473 mFallbackEventHandler.setView(view); 474 mWindowAttributes.copyFrom(attrs); 475 attrs = mWindowAttributes; 476 // Keep track of the actual window flags supplied by the client. 477 mClientWindowLayoutFlags = attrs.flags; 478 479 setAccessibilityFocus(null, null); 480 481 if (view instanceof RootViewSurfaceTaker) { 482 mSurfaceHolderCallback = 483 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 484 if (mSurfaceHolderCallback != null) { 485 mSurfaceHolder = new TakenSurfaceHolder(); 486 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 487 } 488 } 489 490 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 491 mTranslator = compatibilityInfo.getTranslator(); 492 493 // If the application owns the surface, don't enable hardware acceleration 494 if (mSurfaceHolder == null) { 495 enableHardwareAcceleration(mView.getContext(), attrs); 496 } 497 498 boolean restore = false; 499 if (mTranslator != null) { 500 mSurface.setCompatibilityTranslator(mTranslator); 501 restore = true; 502 attrs.backup(); 503 mTranslator.translateWindowLayout(attrs); 504 } 505 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 506 507 if (!compatibilityInfo.supportsScreen()) { 508 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 509 mLastInCompatMode = true; 510 } 511 512 mSoftInputMode = attrs.softInputMode; 513 mWindowAttributesChanged = true; 514 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 515 mAttachInfo.mRootView = view; 516 mAttachInfo.mScalingRequired = mTranslator != null; 517 mAttachInfo.mApplicationScale = 518 mTranslator == null ? 1.0f : mTranslator.applicationScale; 519 if (panelParentView != null) { 520 mAttachInfo.mPanelParentWindowToken 521 = panelParentView.getApplicationWindowToken(); 522 } 523 mAdded = true; 524 int res; /* = WindowManagerImpl.ADD_OKAY; */ 525 526 // Schedule the first layout -before- adding to the window 527 // manager, to make sure we do the relayout before receiving 528 // any other events from the system. 529 requestLayout(); 530 if ((mWindowAttributes.inputFeatures 531 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 532 mInputChannel = new InputChannel(); 533 } 534 try { 535 mOrigWindowType = mWindowAttributes.type; 536 mAttachInfo.mRecomputeGlobalAttributes = true; 537 collectViewAttributes(); 538 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 539 getHostVisibility(), mDisplay.getDisplayId(), 540 mAttachInfo.mContentInsets, mInputChannel); 541 } catch (RemoteException e) { 542 mAdded = false; 543 mView = null; 544 mAttachInfo.mRootView = null; 545 mInputChannel = null; 546 mFallbackEventHandler.setView(null); 547 unscheduleTraversals(); 548 setAccessibilityFocus(null, null); 549 throw new RuntimeException("Adding window failed", e); 550 } finally { 551 if (restore) { 552 attrs.restore(); 553 } 554 } 555 556 if (mTranslator != null) { 557 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 558 } 559 mPendingContentInsets.set(mAttachInfo.mContentInsets); 560 mPendingVisibleInsets.set(0, 0, 0, 0); 561 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 562 if (res < WindowManagerGlobal.ADD_OKAY) { 563 mView = null; 564 mAttachInfo.mRootView = null; 565 mAdded = false; 566 mFallbackEventHandler.setView(null); 567 unscheduleTraversals(); 568 setAccessibilityFocus(null, null); 569 switch (res) { 570 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 571 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 572 throw new WindowManager.BadTokenException( 573 "Unable to add window -- token " + attrs.token 574 + " is not valid; is your activity running?"); 575 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 576 throw new WindowManager.BadTokenException( 577 "Unable to add window -- token " + attrs.token 578 + " is not for an application"); 579 case WindowManagerGlobal.ADD_APP_EXITING: 580 throw new WindowManager.BadTokenException( 581 "Unable to add window -- app for token " + attrs.token 582 + " is exiting"); 583 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 584 throw new WindowManager.BadTokenException( 585 "Unable to add window -- window " + mWindow 586 + " has already been added"); 587 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 588 // Silently ignore -- we would have just removed it 589 // right away, anyway. 590 return; 591 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 592 throw new WindowManager.BadTokenException( 593 "Unable to add window " + mWindow + 594 " -- another window of this type already exists"); 595 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 596 throw new WindowManager.BadTokenException( 597 "Unable to add window " + mWindow + 598 " -- permission denied for this window type"); 599 } 600 throw new RuntimeException( 601 "Unable to add window -- unknown error code " + res); 602 } 603 604 if (view instanceof RootViewSurfaceTaker) { 605 mInputQueueCallback = 606 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 607 } 608 if (mInputChannel != null) { 609 if (mInputQueueCallback != null) { 610 mInputQueue = new InputQueue(mInputChannel); 611 mInputQueueCallback.onInputQueueCreated(mInputQueue); 612 } else { 613 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 614 Looper.myLooper()); 615 } 616 } 617 618 view.assignParent(this); 619 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 620 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 621 622 if (mAccessibilityManager.isEnabled()) { 623 mAccessibilityInteractionConnectionManager.ensureConnection(); 624 } 625 626 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 627 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 628 } 629 } 630 } 631 } 632 633 void destroyHardwareResources() { 634 if (mAttachInfo.mHardwareRenderer != null) { 635 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 636 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 637 } 638 mAttachInfo.mHardwareRenderer.destroy(false); 639 } 640 } 641 642 void terminateHardwareResources() { 643 if (mAttachInfo.mHardwareRenderer != null) { 644 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 645 mAttachInfo.mHardwareRenderer.destroy(false); 646 } 647 } 648 649 void destroyHardwareLayers() { 650 if (mThread != Thread.currentThread()) { 651 if (mAttachInfo.mHardwareRenderer != null && 652 mAttachInfo.mHardwareRenderer.isEnabled()) { 653 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 654 } 655 } else { 656 if (mAttachInfo.mHardwareRenderer != null && 657 mAttachInfo.mHardwareRenderer.isEnabled()) { 658 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 659 } 660 } 661 } 662 663 void pushHardwareLayerUpdate(HardwareLayer layer) { 664 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 665 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 666 } 667 } 668 669 public boolean attachFunctor(int functor) { 670 //noinspection SimplifiableIfStatement 671 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 672 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 673 } 674 return false; 675 } 676 677 public void detachFunctor(int functor) { 678 if (mAttachInfo.mHardwareRenderer != null) { 679 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 680 } 681 } 682 683 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 684 mAttachInfo.mHardwareAccelerated = false; 685 mAttachInfo.mHardwareAccelerationRequested = false; 686 687 // Don't enable hardware acceleration when the application is in compatibility mode 688 if (mTranslator != null) return; 689 690 // Try to enable hardware acceleration if requested 691 final boolean hardwareAccelerated = 692 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 693 694 if (hardwareAccelerated) { 695 if (!HardwareRenderer.isAvailable()) { 696 return; 697 } 698 699 // Persistent processes (including the system) should not do 700 // accelerated rendering on low-end devices. In that case, 701 // sRendererDisabled will be set. In addition, the system process 702 // itself should never do accelerated rendering. In that case, both 703 // sRendererDisabled and sSystemRendererDisabled are set. When 704 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 705 // can be used by code on the system process to escape that and enable 706 // HW accelerated drawing. (This is basically for the lock screen.) 707 708 final boolean fakeHwAccelerated = (attrs.privateFlags & 709 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 710 final boolean forceHwAccelerated = (attrs.privateFlags & 711 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 712 713 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 714 && forceHwAccelerated)) { 715 // Don't enable hardware acceleration when we're not on the main thread 716 if (!HardwareRenderer.sSystemRendererDisabled && 717 Looper.getMainLooper() != Looper.myLooper()) { 718 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 719 + "acceleration outside of the main thread, aborting"); 720 return; 721 } 722 723 final boolean renderThread = isRenderThreadRequested(context); 724 if (renderThread) { 725 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 726 } 727 728 if (mAttachInfo.mHardwareRenderer != null) { 729 mAttachInfo.mHardwareRenderer.destroy(true); 730 } 731 732 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 733 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 734 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 735 = mAttachInfo.mHardwareRenderer != null; 736 737 } else if (fakeHwAccelerated) { 738 // The window had wanted to use hardware acceleration, but this 739 // is not allowed in its process. By setting this flag, it can 740 // still render as if it was accelerated. This is basically for 741 // the preview windows the window manager shows for launching 742 // applications, so they will look more like the app being launched. 743 mAttachInfo.mHardwareAccelerationRequested = true; 744 } 745 } 746 } 747 748 public View getView() { 749 return mView; 750 } 751 752 final WindowLeaked getLocation() { 753 return mLocation; 754 } 755 756 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 757 synchronized (this) { 758 int oldSoftInputMode = mWindowAttributes.softInputMode; 759 // Keep track of the actual window flags supplied by the client. 760 mClientWindowLayoutFlags = attrs.flags; 761 // preserve compatible window flag if exists. 762 int compatibleWindowFlag = 763 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 764 // transfer over system UI visibility values as they carry current state. 765 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 766 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 767 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 768 mWindowAttributes.flags |= compatibleWindowFlag; 769 770 applyKeepScreenOnFlag(mWindowAttributes); 771 772 if (newView) { 773 mSoftInputMode = attrs.softInputMode; 774 requestLayout(); 775 } 776 // Don't lose the mode we last auto-computed. 777 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 778 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 779 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 780 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 781 | (oldSoftInputMode 782 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 783 } 784 mWindowAttributesChanged = true; 785 scheduleTraversals(); 786 } 787 } 788 789 void handleAppVisibility(boolean visible) { 790 if (mAppVisible != visible) { 791 mAppVisible = visible; 792 scheduleTraversals(); 793 } 794 } 795 796 void handleGetNewSurface() { 797 mNewSurfaceNeeded = true; 798 mFullRedrawNeeded = true; 799 scheduleTraversals(); 800 } 801 802 void handleScreenStateChange(boolean on) { 803 if (on != mAttachInfo.mScreenOn) { 804 mAttachInfo.mScreenOn = on; 805 if (mView != null) { 806 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 807 } 808 if (on) { 809 mFullRedrawNeeded = true; 810 scheduleTraversals(); 811 } 812 } 813 } 814 815 /** 816 * {@inheritDoc} 817 */ 818 public void requestFitSystemWindows() { 819 checkThread(); 820 mFitSystemWindowsRequested = true; 821 scheduleTraversals(); 822 } 823 824 /** 825 * {@inheritDoc} 826 */ 827 public void requestLayout() { 828 checkThread(); 829 mLayoutRequested = true; 830 scheduleTraversals(); 831 } 832 833 /** 834 * {@inheritDoc} 835 */ 836 public boolean isLayoutRequested() { 837 return mLayoutRequested; 838 } 839 840 void invalidate() { 841 mDirty.set(0, 0, mWidth, mHeight); 842 scheduleTraversals(); 843 } 844 845 void invalidateWorld(View view) { 846 view.invalidate(); 847 if (view instanceof ViewGroup) { 848 ViewGroup parent = (ViewGroup) view; 849 for (int i = 0; i < parent.getChildCount(); i++) { 850 invalidateWorld(parent.getChildAt(i)); 851 } 852 } 853 } 854 855 public void invalidateChild(View child, Rect dirty) { 856 invalidateChildInParent(null, dirty); 857 } 858 859 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 860 checkThread(); 861 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 862 863 if (dirty == null) { 864 invalidate(); 865 return null; 866 } else if (dirty.isEmpty()) { 867 return null; 868 } 869 870 if (mCurScrollY != 0 || mTranslator != null) { 871 mTempRect.set(dirty); 872 dirty = mTempRect; 873 if (mCurScrollY != 0) { 874 dirty.offset(0, -mCurScrollY); 875 } 876 if (mTranslator != null) { 877 mTranslator.translateRectInAppWindowToScreen(dirty); 878 } 879 if (mAttachInfo.mScalingRequired) { 880 dirty.inset(-1, -1); 881 } 882 } 883 884 final Rect localDirty = mDirty; 885 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 886 mAttachInfo.mSetIgnoreDirtyState = true; 887 mAttachInfo.mIgnoreDirtyState = true; 888 } 889 890 // Add the new dirty rect to the current one 891 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 892 // Intersect with the bounds of the window to skip 893 // updates that lie outside of the visible region 894 final float appScale = mAttachInfo.mApplicationScale; 895 localDirty.intersect(0, 0, 896 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 897 898 if (!mWillDrawSoon) { 899 scheduleTraversals(); 900 } 901 902 return null; 903 } 904 905 void setStopped(boolean stopped) { 906 if (mStopped != stopped) { 907 mStopped = stopped; 908 if (!stopped) { 909 scheduleTraversals(); 910 } 911 } 912 } 913 914 public ViewParent getParent() { 915 return null; 916 } 917 918 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 919 if (child != mView) { 920 throw new RuntimeException("child is not mine, honest!"); 921 } 922 // Note: don't apply scroll offset, because we want to know its 923 // visibility in the virtual canvas being given to the view hierarchy. 924 return r.intersect(0, 0, mWidth, mHeight); 925 } 926 927 public void bringChildToFront(View child) { 928 } 929 930 int getHostVisibility() { 931 return mAppVisible ? mView.getVisibility() : View.GONE; 932 } 933 934 void disposeResizeBuffer() { 935 if (mResizeBuffer != null) { 936 mResizeBuffer.destroy(); 937 mResizeBuffer = null; 938 } 939 } 940 941 /** 942 * Add LayoutTransition to the list of transitions to be started in the next traversal. 943 * This list will be cleared after the transitions on the list are start()'ed. These 944 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 945 * happens during the layout phase of traversal, which we want to complete before any of the 946 * animations are started (because those animations may side-effect properties that layout 947 * depends upon, like the bounding rectangles of the affected views). So we add the transition 948 * to the list and it is started just prior to starting the drawing phase of traversal. 949 * 950 * @param transition The LayoutTransition to be started on the next traversal. 951 * 952 * @hide 953 */ 954 public void requestTransitionStart(LayoutTransition transition) { 955 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 956 if (mPendingTransitions == null) { 957 mPendingTransitions = new ArrayList<LayoutTransition>(); 958 } 959 mPendingTransitions.add(transition); 960 } 961 } 962 963 void scheduleTraversals() { 964 if (!mTraversalScheduled) { 965 mTraversalScheduled = true; 966 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 967 mChoreographer.postCallback( 968 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 969 scheduleConsumeBatchedInput(); 970 } 971 } 972 973 void unscheduleTraversals() { 974 if (mTraversalScheduled) { 975 mTraversalScheduled = false; 976 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 977 mChoreographer.removeCallbacks( 978 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 979 } 980 } 981 982 void doTraversal() { 983 if (mTraversalScheduled) { 984 mTraversalScheduled = false; 985 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 986 987 if (mProfile) { 988 Debug.startMethodTracing("ViewAncestor"); 989 } 990 991 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 992 try { 993 performTraversals(); 994 } finally { 995 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 996 } 997 998 if (mProfile) { 999 Debug.stopMethodTracing(); 1000 mProfile = false; 1001 } 1002 } 1003 } 1004 1005 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1006 // Update window's global keep screen on flag: if a view has requested 1007 // that the screen be kept on, then it is always set; otherwise, it is 1008 // set to whatever the client last requested for the global state. 1009 if (mAttachInfo.mKeepScreenOn) { 1010 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1011 } else { 1012 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1013 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1014 } 1015 } 1016 1017 private boolean collectViewAttributes() { 1018 final View.AttachInfo attachInfo = mAttachInfo; 1019 if (attachInfo.mRecomputeGlobalAttributes) { 1020 //Log.i(TAG, "Computing view hierarchy attributes!"); 1021 attachInfo.mRecomputeGlobalAttributes = false; 1022 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1023 attachInfo.mKeepScreenOn = false; 1024 attachInfo.mSystemUiVisibility = 0; 1025 attachInfo.mHasSystemUiListeners = false; 1026 mView.dispatchCollectViewAttributes(attachInfo, 0); 1027 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1028 WindowManager.LayoutParams params = mWindowAttributes; 1029 if (attachInfo.mKeepScreenOn != oldScreenOn 1030 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1031 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1032 applyKeepScreenOnFlag(params); 1033 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1034 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1035 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1036 return true; 1037 } 1038 } 1039 return false; 1040 } 1041 1042 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1043 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1044 int childWidthMeasureSpec; 1045 int childHeightMeasureSpec; 1046 boolean windowSizeMayChange = false; 1047 1048 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1049 "Measuring " + host + " in display " + desiredWindowWidth 1050 + "x" + desiredWindowHeight + "..."); 1051 1052 boolean goodMeasure = false; 1053 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1054 // On large screens, we don't want to allow dialogs to just 1055 // stretch to fill the entire width of the screen to display 1056 // one line of text. First try doing the layout at a smaller 1057 // size to see if it will fit. 1058 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1059 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1060 int baseSize = 0; 1061 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1062 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1063 } 1064 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1065 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1066 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1067 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1068 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1069 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1070 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1071 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1072 goodMeasure = true; 1073 } else { 1074 // Didn't fit in that size... try expanding a bit. 1075 baseSize = (baseSize+desiredWindowWidth)/2; 1076 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1077 + baseSize); 1078 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1079 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1080 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1081 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1082 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1083 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1084 goodMeasure = true; 1085 } 1086 } 1087 } 1088 } 1089 1090 if (!goodMeasure) { 1091 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1092 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1093 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1094 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1095 windowSizeMayChange = true; 1096 } 1097 } 1098 1099 if (DBG) { 1100 System.out.println("======================================"); 1101 System.out.println("performTraversals -- after measure"); 1102 host.debug(); 1103 } 1104 1105 return windowSizeMayChange; 1106 } 1107 1108 private void performTraversals() { 1109 // cache mView since it is used so much below... 1110 final View host = mView; 1111 1112 if (DBG) { 1113 System.out.println("======================================"); 1114 System.out.println("performTraversals"); 1115 host.debug(); 1116 } 1117 1118 if (host == null || !mAdded) 1119 return; 1120 1121 mIsInTraversal = true; 1122 mWillDrawSoon = true; 1123 boolean windowSizeMayChange = false; 1124 boolean newSurface = false; 1125 boolean surfaceChanged = false; 1126 WindowManager.LayoutParams lp = mWindowAttributes; 1127 1128 int desiredWindowWidth; 1129 int desiredWindowHeight; 1130 1131 final View.AttachInfo attachInfo = mAttachInfo; 1132 1133 final int viewVisibility = getHostVisibility(); 1134 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1135 || mNewSurfaceNeeded; 1136 1137 WindowManager.LayoutParams params = null; 1138 if (mWindowAttributesChanged) { 1139 mWindowAttributesChanged = false; 1140 surfaceChanged = true; 1141 params = lp; 1142 } 1143 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1144 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1145 params = lp; 1146 mFullRedrawNeeded = true; 1147 mLayoutRequested = true; 1148 if (mLastInCompatMode) { 1149 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1150 mLastInCompatMode = false; 1151 } else { 1152 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1153 mLastInCompatMode = true; 1154 } 1155 } 1156 1157 mWindowAttributesChangesFlag = 0; 1158 1159 Rect frame = mWinFrame; 1160 if (mFirst) { 1161 mFullRedrawNeeded = true; 1162 mLayoutRequested = true; 1163 1164 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1165 // NOTE -- system code, won't try to do compat mode. 1166 Point size = new Point(); 1167 mDisplay.getRealSize(size); 1168 desiredWindowWidth = size.x; 1169 desiredWindowHeight = size.y; 1170 } else { 1171 DisplayMetrics packageMetrics = 1172 mView.getContext().getResources().getDisplayMetrics(); 1173 desiredWindowWidth = packageMetrics.widthPixels; 1174 desiredWindowHeight = packageMetrics.heightPixels; 1175 } 1176 1177 // For the very first time, tell the view hierarchy that it 1178 // is attached to the window. Note that at this point the surface 1179 // object is not initialized to its backing store, but soon it 1180 // will be (assuming the window is visible). 1181 attachInfo.mSurface = mSurface; 1182 // We used to use the following condition to choose 32 bits drawing caches: 1183 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1184 // However, windows are now always 32 bits by default, so choose 32 bits 1185 attachInfo.mUse32BitDrawingCache = true; 1186 attachInfo.mHasWindowFocus = false; 1187 attachInfo.mWindowVisibility = viewVisibility; 1188 attachInfo.mRecomputeGlobalAttributes = false; 1189 viewVisibilityChanged = false; 1190 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1191 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1192 host.dispatchAttachedToWindow(attachInfo, 0); 1193 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1194 host.fitSystemWindows(mFitSystemWindowsInsets); 1195 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1196 1197 } else { 1198 desiredWindowWidth = frame.width(); 1199 desiredWindowHeight = frame.height(); 1200 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1201 if (DEBUG_ORIENTATION) Log.v(TAG, 1202 "View " + host + " resized to: " + frame); 1203 mFullRedrawNeeded = true; 1204 mLayoutRequested = true; 1205 windowSizeMayChange = true; 1206 } 1207 } 1208 1209 if (viewVisibilityChanged) { 1210 attachInfo.mWindowVisibility = viewVisibility; 1211 host.dispatchWindowVisibilityChanged(viewVisibility); 1212 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1213 destroyHardwareResources(); 1214 } 1215 if (viewVisibility == View.GONE) { 1216 // After making a window gone, we will count it as being 1217 // shown for the first time the next time it gets focus. 1218 mHasHadWindowFocus = false; 1219 } 1220 } 1221 1222 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1223 getRunQueue().executeActions(attachInfo.mHandler); 1224 1225 boolean insetsChanged = false; 1226 1227 boolean layoutRequested = mLayoutRequested && !mStopped; 1228 if (layoutRequested) { 1229 1230 final Resources res = mView.getContext().getResources(); 1231 1232 if (mFirst) { 1233 // make sure touch mode code executes by setting cached value 1234 // to opposite of the added touch mode. 1235 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1236 ensureTouchModeLocally(mAddedTouchMode); 1237 } else { 1238 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1239 insetsChanged = true; 1240 } 1241 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1242 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1243 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1244 + mAttachInfo.mVisibleInsets); 1245 } 1246 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1247 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1248 windowSizeMayChange = true; 1249 1250 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1251 // NOTE -- system code, won't try to do compat mode. 1252 Point size = new Point(); 1253 mDisplay.getRealSize(size); 1254 desiredWindowWidth = size.x; 1255 desiredWindowHeight = size.y; 1256 } else { 1257 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1258 desiredWindowWidth = packageMetrics.widthPixels; 1259 desiredWindowHeight = packageMetrics.heightPixels; 1260 } 1261 } 1262 } 1263 1264 // Ask host how big it wants to be 1265 windowSizeMayChange |= measureHierarchy(host, lp, res, 1266 desiredWindowWidth, desiredWindowHeight); 1267 } 1268 1269 if (collectViewAttributes()) { 1270 params = lp; 1271 } 1272 if (attachInfo.mForceReportNewAttributes) { 1273 attachInfo.mForceReportNewAttributes = false; 1274 params = lp; 1275 } 1276 1277 if (mFirst || attachInfo.mViewVisibilityChanged) { 1278 attachInfo.mViewVisibilityChanged = false; 1279 int resizeMode = mSoftInputMode & 1280 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1281 // If we are in auto resize mode, then we need to determine 1282 // what mode to use now. 1283 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1284 final int N = attachInfo.mScrollContainers.size(); 1285 for (int i=0; i<N; i++) { 1286 if (attachInfo.mScrollContainers.get(i).isShown()) { 1287 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1288 } 1289 } 1290 if (resizeMode == 0) { 1291 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1292 } 1293 if ((lp.softInputMode & 1294 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1295 lp.softInputMode = (lp.softInputMode & 1296 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1297 resizeMode; 1298 params = lp; 1299 } 1300 } 1301 } 1302 1303 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1304 if (!PixelFormat.formatHasAlpha(params.format)) { 1305 params.format = PixelFormat.TRANSLUCENT; 1306 } 1307 } 1308 1309 if (mFitSystemWindowsRequested) { 1310 mFitSystemWindowsRequested = false; 1311 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1312 host.fitSystemWindows(mFitSystemWindowsInsets); 1313 if (mLayoutRequested) { 1314 // Short-circuit catching a new layout request here, so 1315 // we don't need to go through two layout passes when things 1316 // change due to fitting system windows, which can happen a lot. 1317 windowSizeMayChange |= measureHierarchy(host, lp, 1318 mView.getContext().getResources(), 1319 desiredWindowWidth, desiredWindowHeight); 1320 } 1321 } 1322 1323 if (layoutRequested) { 1324 // Clear this now, so that if anything requests a layout in the 1325 // rest of this function we will catch it and re-run a full 1326 // layout pass. 1327 mLayoutRequested = false; 1328 } 1329 1330 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1331 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1332 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1333 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1334 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1335 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1336 1337 final boolean computesInternalInsets = 1338 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1339 1340 boolean insetsPending = false; 1341 int relayoutResult = 0; 1342 1343 if (mFirst || windowShouldResize || insetsChanged || 1344 viewVisibilityChanged || params != null) { 1345 1346 if (viewVisibility == View.VISIBLE) { 1347 // If this window is giving internal insets to the window 1348 // manager, and it is being added or changing its visibility, 1349 // then we want to first give the window manager "fake" 1350 // insets to cause it to effectively ignore the content of 1351 // the window during layout. This avoids it briefly causing 1352 // other windows to resize/move based on the raw frame of the 1353 // window, waiting until we can finish laying out this window 1354 // and get back to the window manager with the ultimately 1355 // computed insets. 1356 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1357 } 1358 1359 if (mSurfaceHolder != null) { 1360 mSurfaceHolder.mSurfaceLock.lock(); 1361 mDrawingAllowed = true; 1362 } 1363 1364 boolean hwInitialized = false; 1365 boolean contentInsetsChanged = false; 1366 boolean visibleInsetsChanged; 1367 boolean hadSurface = mSurface.isValid(); 1368 1369 try { 1370 if (DEBUG_LAYOUT) { 1371 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1372 host.getMeasuredHeight() + ", params=" + params); 1373 } 1374 1375 final int surfaceGenerationId = mSurface.getGenerationId(); 1376 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1377 1378 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1379 + " content=" + mPendingContentInsets.toShortString() 1380 + " visible=" + mPendingVisibleInsets.toShortString() 1381 + " surface=" + mSurface); 1382 1383 if (mPendingConfiguration.seq != 0) { 1384 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1385 + mPendingConfiguration); 1386 updateConfiguration(mPendingConfiguration, !mFirst); 1387 mPendingConfiguration.seq = 0; 1388 } 1389 1390 contentInsetsChanged = !mPendingContentInsets.equals( 1391 mAttachInfo.mContentInsets); 1392 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1393 mAttachInfo.mVisibleInsets); 1394 if (contentInsetsChanged) { 1395 if (mWidth > 0 && mHeight > 0 && lp != null && 1396 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1397 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1398 mSurface != null && mSurface.isValid() && 1399 !mAttachInfo.mTurnOffWindowResizeAnim && 1400 mAttachInfo.mHardwareRenderer != null && 1401 mAttachInfo.mHardwareRenderer.isEnabled() && 1402 mAttachInfo.mHardwareRenderer.validate() && 1403 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1404 1405 disposeResizeBuffer(); 1406 1407 boolean completed = false; 1408 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1409 HardwareCanvas layerCanvas = null; 1410 try { 1411 if (mResizeBuffer == null) { 1412 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1413 mWidth, mHeight, false); 1414 } else if (mResizeBuffer.getWidth() != mWidth || 1415 mResizeBuffer.getHeight() != mHeight) { 1416 mResizeBuffer.resize(mWidth, mHeight); 1417 } 1418 // TODO: should handle create/resize failure 1419 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1420 layerCanvas.setViewport(mWidth, mHeight); 1421 layerCanvas.onPreDraw(null); 1422 final int restoreCount = layerCanvas.save(); 1423 1424 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1425 1426 int yoff; 1427 final boolean scrolling = mScroller != null 1428 && mScroller.computeScrollOffset(); 1429 if (scrolling) { 1430 yoff = mScroller.getCurrY(); 1431 mScroller.abortAnimation(); 1432 } else { 1433 yoff = mScrollY; 1434 } 1435 1436 layerCanvas.translate(0, -yoff); 1437 if (mTranslator != null) { 1438 mTranslator.translateCanvas(layerCanvas); 1439 } 1440 1441 mView.draw(layerCanvas); 1442 1443 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1444 1445 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1446 mResizeBufferDuration = mView.getResources().getInteger( 1447 com.android.internal.R.integer.config_mediumAnimTime); 1448 completed = true; 1449 1450 layerCanvas.restoreToCount(restoreCount); 1451 } catch (OutOfMemoryError e) { 1452 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1453 } finally { 1454 if (layerCanvas != null) { 1455 layerCanvas.onPostDraw(); 1456 } 1457 if (mResizeBuffer != null) { 1458 mResizeBuffer.end(hwRendererCanvas); 1459 if (!completed) { 1460 mResizeBuffer.destroy(); 1461 mResizeBuffer = null; 1462 } 1463 } 1464 } 1465 } 1466 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1467 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1468 + mAttachInfo.mContentInsets); 1469 } 1470 if (contentInsetsChanged || mLastSystemUiVisibility != 1471 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1472 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1473 mFitSystemWindowsRequested = false; 1474 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1475 host.fitSystemWindows(mFitSystemWindowsInsets); 1476 } 1477 if (visibleInsetsChanged) { 1478 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1479 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1480 + mAttachInfo.mVisibleInsets); 1481 } 1482 1483 if (!hadSurface) { 1484 if (mSurface.isValid()) { 1485 // If we are creating a new surface, then we need to 1486 // completely redraw it. Also, when we get to the 1487 // point of drawing it we will hold off and schedule 1488 // a new traversal instead. This is so we can tell the 1489 // window manager about all of the windows being displayed 1490 // before actually drawing them, so it can display then 1491 // all at once. 1492 newSurface = true; 1493 mFullRedrawNeeded = true; 1494 mPreviousTransparentRegion.setEmpty(); 1495 1496 if (mAttachInfo.mHardwareRenderer != null) { 1497 try { 1498 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1499 mHolder.getSurface()); 1500 } catch (Surface.OutOfResourcesException e) { 1501 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1502 try { 1503 if (!mWindowSession.outOfMemory(mWindow) && 1504 Process.myUid() != Process.SYSTEM_UID) { 1505 Slog.w(TAG, "No processes killed for memory; killing self"); 1506 Process.killProcess(Process.myPid()); 1507 } 1508 } catch (RemoteException ex) { 1509 } 1510 mLayoutRequested = true; // ask wm for a new surface next time. 1511 return; 1512 } 1513 } 1514 } 1515 } else if (!mSurface.isValid()) { 1516 // If the surface has been removed, then reset the scroll 1517 // positions. 1518 mLastScrolledFocus = null; 1519 mScrollY = mCurScrollY = 0; 1520 if (mScroller != null) { 1521 mScroller.abortAnimation(); 1522 } 1523 disposeResizeBuffer(); 1524 // Our surface is gone 1525 if (mAttachInfo.mHardwareRenderer != null && 1526 mAttachInfo.mHardwareRenderer.isEnabled()) { 1527 mAttachInfo.mHardwareRenderer.destroy(true); 1528 } 1529 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1530 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1531 mFullRedrawNeeded = true; 1532 try { 1533 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1534 } catch (Surface.OutOfResourcesException e) { 1535 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1536 try { 1537 if (!mWindowSession.outOfMemory(mWindow)) { 1538 Slog.w(TAG, "No processes killed for memory; killing self"); 1539 Process.killProcess(Process.myPid()); 1540 } 1541 } catch (RemoteException ex) { 1542 } 1543 mLayoutRequested = true; // ask wm for a new surface next time. 1544 return; 1545 } 1546 } 1547 } catch (RemoteException e) { 1548 } 1549 1550 if (DEBUG_ORIENTATION) Log.v( 1551 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1552 1553 attachInfo.mWindowLeft = frame.left; 1554 attachInfo.mWindowTop = frame.top; 1555 1556 // !!FIXME!! This next section handles the case where we did not get the 1557 // window size we asked for. We should avoid this by getting a maximum size from 1558 // the window session beforehand. 1559 if (mWidth != frame.width() || mHeight != frame.height()) { 1560 mWidth = frame.width(); 1561 mHeight = frame.height(); 1562 } 1563 1564 if (mSurfaceHolder != null) { 1565 // The app owns the surface; tell it about what is going on. 1566 if (mSurface.isValid()) { 1567 // XXX .copyFrom() doesn't work! 1568 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1569 mSurfaceHolder.mSurface = mSurface; 1570 } 1571 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1572 mSurfaceHolder.mSurfaceLock.unlock(); 1573 if (mSurface.isValid()) { 1574 if (!hadSurface) { 1575 mSurfaceHolder.ungetCallbacks(); 1576 1577 mIsCreating = true; 1578 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1579 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1580 if (callbacks != null) { 1581 for (SurfaceHolder.Callback c : callbacks) { 1582 c.surfaceCreated(mSurfaceHolder); 1583 } 1584 } 1585 surfaceChanged = true; 1586 } 1587 if (surfaceChanged) { 1588 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1589 lp.format, mWidth, mHeight); 1590 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1591 if (callbacks != null) { 1592 for (SurfaceHolder.Callback c : callbacks) { 1593 c.surfaceChanged(mSurfaceHolder, lp.format, 1594 mWidth, mHeight); 1595 } 1596 } 1597 } 1598 mIsCreating = false; 1599 } else if (hadSurface) { 1600 mSurfaceHolder.ungetCallbacks(); 1601 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1602 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1603 if (callbacks != null) { 1604 for (SurfaceHolder.Callback c : callbacks) { 1605 c.surfaceDestroyed(mSurfaceHolder); 1606 } 1607 } 1608 mSurfaceHolder.mSurfaceLock.lock(); 1609 try { 1610 mSurfaceHolder.mSurface = new Surface(); 1611 } finally { 1612 mSurfaceHolder.mSurfaceLock.unlock(); 1613 } 1614 } 1615 } 1616 1617 if (mAttachInfo.mHardwareRenderer != null && 1618 mAttachInfo.mHardwareRenderer.isEnabled()) { 1619 if (hwInitialized || windowShouldResize || 1620 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1621 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1622 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1623 if (!hwInitialized) { 1624 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1625 mFullRedrawNeeded = true; 1626 } 1627 } 1628 } 1629 1630 if (!mStopped) { 1631 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1632 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1633 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1634 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1635 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1636 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1637 1638 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1639 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1640 + " mHeight=" + mHeight 1641 + " measuredHeight=" + host.getMeasuredHeight() 1642 + " coveredInsetsChanged=" + contentInsetsChanged); 1643 1644 // Ask host how big it wants to be 1645 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1646 1647 // Implementation of weights from WindowManager.LayoutParams 1648 // We just grow the dimensions as needed and re-measure if 1649 // needs be 1650 int width = host.getMeasuredWidth(); 1651 int height = host.getMeasuredHeight(); 1652 boolean measureAgain = false; 1653 1654 if (lp.horizontalWeight > 0.0f) { 1655 width += (int) ((mWidth - width) * lp.horizontalWeight); 1656 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1657 MeasureSpec.EXACTLY); 1658 measureAgain = true; 1659 } 1660 if (lp.verticalWeight > 0.0f) { 1661 height += (int) ((mHeight - height) * lp.verticalWeight); 1662 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1663 MeasureSpec.EXACTLY); 1664 measureAgain = true; 1665 } 1666 1667 if (measureAgain) { 1668 if (DEBUG_LAYOUT) Log.v(TAG, 1669 "And hey let's measure once more: width=" + width 1670 + " height=" + height); 1671 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1672 } 1673 1674 layoutRequested = true; 1675 } 1676 } 1677 } else { 1678 // Not the first pass and no window/insets/visibility change but the window 1679 // may have moved and we need check that and if so to update the left and right 1680 // in the attach info. We translate only the window frame since on window move 1681 // the window manager tells us only for the new frame but the insets are the 1682 // same and we do not want to translate them more than once. 1683 1684 // TODO: Well, we are checking whether the frame has changed similarly 1685 // to how this is done for the insets. This is however incorrect since 1686 // the insets and the frame are translated. For example, the old frame 1687 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1688 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1689 // true since we are comparing a not translated value to a translated one. 1690 // This scenario is rare but we may want to fix that. 1691 1692 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1693 || attachInfo.mWindowTop != frame.top); 1694 if (windowMoved) { 1695 if (mTranslator != null) { 1696 mTranslator.translateRectInScreenToAppWinFrame(frame); 1697 } 1698 attachInfo.mWindowLeft = frame.left; 1699 attachInfo.mWindowTop = frame.top; 1700 } 1701 } 1702 1703 final boolean didLayout = layoutRequested && !mStopped; 1704 boolean triggerGlobalLayoutListener = didLayout 1705 || attachInfo.mRecomputeGlobalAttributes; 1706 if (didLayout) { 1707 performLayout(); 1708 1709 // By this point all views have been sized and positionned 1710 // We can compute the transparent area 1711 1712 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1713 // start out transparent 1714 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1715 host.getLocationInWindow(mTmpLocation); 1716 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1717 mTmpLocation[0] + host.mRight - host.mLeft, 1718 mTmpLocation[1] + host.mBottom - host.mTop); 1719 1720 host.gatherTransparentRegion(mTransparentRegion); 1721 if (mTranslator != null) { 1722 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1723 } 1724 1725 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1726 mPreviousTransparentRegion.set(mTransparentRegion); 1727 // reconfigure window manager 1728 try { 1729 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1730 } catch (RemoteException e) { 1731 } 1732 } 1733 } 1734 1735 if (DBG) { 1736 System.out.println("======================================"); 1737 System.out.println("performTraversals -- after setFrame"); 1738 host.debug(); 1739 } 1740 } 1741 1742 if (triggerGlobalLayoutListener) { 1743 attachInfo.mRecomputeGlobalAttributes = false; 1744 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1745 1746 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1747 postSendWindowContentChangedCallback(mView); 1748 } 1749 } 1750 1751 if (computesInternalInsets) { 1752 // Clear the original insets. 1753 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1754 insets.reset(); 1755 1756 // Compute new insets in place. 1757 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1758 1759 // Tell the window manager. 1760 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1761 mLastGivenInsets.set(insets); 1762 1763 // Translate insets to screen coordinates if needed. 1764 final Rect contentInsets; 1765 final Rect visibleInsets; 1766 final Region touchableRegion; 1767 if (mTranslator != null) { 1768 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1769 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1770 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1771 } else { 1772 contentInsets = insets.contentInsets; 1773 visibleInsets = insets.visibleInsets; 1774 touchableRegion = insets.touchableRegion; 1775 } 1776 1777 try { 1778 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1779 contentInsets, visibleInsets, touchableRegion); 1780 } catch (RemoteException e) { 1781 } 1782 } 1783 } 1784 1785 boolean skipDraw = false; 1786 1787 if (mFirst) { 1788 // handle first focus request 1789 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1790 + mView.hasFocus()); 1791 if (mView != null) { 1792 if (!mView.hasFocus()) { 1793 mView.requestFocus(View.FOCUS_FORWARD); 1794 mFocusedView = mRealFocusedView = mView.findFocus(); 1795 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1796 + mFocusedView); 1797 } else { 1798 mRealFocusedView = mView.findFocus(); 1799 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1800 + mRealFocusedView); 1801 } 1802 } 1803 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1804 // The first time we relayout the window, if the system is 1805 // doing window animations, we want to hold of on any future 1806 // draws until the animation is done. 1807 mWindowsAnimating = true; 1808 } 1809 } else if (mWindowsAnimating) { 1810 skipDraw = true; 1811 } 1812 1813 mFirst = false; 1814 mWillDrawSoon = false; 1815 mNewSurfaceNeeded = false; 1816 mViewVisibility = viewVisibility; 1817 1818 if (mAttachInfo.mHasWindowFocus) { 1819 final boolean imTarget = WindowManager.LayoutParams 1820 .mayUseInputMethod(mWindowAttributes.flags); 1821 if (imTarget != mLastWasImTarget) { 1822 mLastWasImTarget = imTarget; 1823 InputMethodManager imm = InputMethodManager.peekInstance(); 1824 if (imm != null && imTarget) { 1825 imm.startGettingWindowFocus(mView); 1826 imm.onWindowFocus(mView, mView.findFocus(), 1827 mWindowAttributes.softInputMode, 1828 !mHasHadWindowFocus, mWindowAttributes.flags); 1829 } 1830 } 1831 } 1832 1833 // Remember if we must report the next draw. 1834 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1835 mReportNextDraw = true; 1836 } 1837 1838 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1839 viewVisibility != View.VISIBLE; 1840 1841 if (!cancelDraw && !newSurface) { 1842 if (!skipDraw || mReportNextDraw) { 1843 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1844 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1845 mPendingTransitions.get(i).startChangingAnimations(); 1846 } 1847 mPendingTransitions.clear(); 1848 } 1849 1850 performDraw(); 1851 } 1852 } else { 1853 if (viewVisibility == View.VISIBLE) { 1854 // Try again 1855 scheduleTraversals(); 1856 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1857 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1858 mPendingTransitions.get(i).endChangingAnimations(); 1859 } 1860 mPendingTransitions.clear(); 1861 } 1862 } 1863 1864 mIsInTraversal = false; 1865 } 1866 1867 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1868 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1869 try { 1870 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1871 } finally { 1872 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1873 } 1874 } 1875 1876 /** 1877 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1878 * is currently undergoing a layout pass. 1879 * 1880 * @return whether the view hierarchy is currently undergoing a layout pass 1881 */ 1882 boolean isInLayout() { 1883 return mInLayout; 1884 } 1885 1886 /** 1887 * Called by {@link android.view.View#requestLayout()} if the view hiearchy is currently 1888 * undergoing a layout pass. requestLayout() should not be called during layout, but if it 1889 * is called anyway, we handle the situation here rather than leave the hierarchy in an 1890 * indeterminate state. The solution is to queue up all requests during layout, apply those 1891 * requests as soon as layout is complete, and then run layout once more immediately. If 1892 * more requestLayout() calls are received during that second layout pass, we post those 1893 * requests to the next frame, to avoid possible infinite loops. 1894 * 1895 * @param view the view that requested the layout. 1896 */ 1897 void requestLayoutDuringLayout(final View view) { 1898 if (!mHandlingLayoutInLayoutRequest) { 1899 if (!mLayoutRequesters.contains(view)) { 1900 Log.w("View", "requestLayout() called by " + view + " during layout pass"); 1901 mLayoutRequesters.add(view); 1902 } 1903 } else { 1904 Log.w("View", "requestLayout() called by " + view + " during second layout pass: " + 1905 "posting to next frame"); 1906 view.post(new Runnable() { 1907 @Override 1908 public void run() { 1909 view.requestLayout(); 1910 } 1911 }); 1912 } 1913 } 1914 1915 private void performLayout() { 1916 mLayoutRequested = false; 1917 mScrollMayChange = true; 1918 mInLayout = true; 1919 1920 final View host = mView; 1921 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1922 Log.v(TAG, "Laying out " + host + " to (" + 1923 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1924 } 1925 1926 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1927 try { 1928 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1929 int numViewsRequestingLayout = mLayoutRequesters.size(); 1930 if (numViewsRequestingLayout > 0) { 1931 // requestLayout() was called during layout: unusual, but try to handle correctly 1932 mHandlingLayoutInLayoutRequest = true; 1933 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1934 mLayoutRequesters.get(i).requestLayout(); 1935 } 1936 // Now run layout one more time 1937 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1938 mHandlingLayoutInLayoutRequest = false; 1939 mLayoutRequesters.clear(); 1940 } 1941 } finally { 1942 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1943 } 1944 mInLayout = false; 1945 } 1946 1947 public void requestTransparentRegion(View child) { 1948 // the test below should not fail unless someone is messing with us 1949 checkThread(); 1950 if (mView == child) { 1951 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1952 // Need to make sure we re-evaluate the window attributes next 1953 // time around, to ensure the window has the correct format. 1954 mWindowAttributesChanged = true; 1955 mWindowAttributesChangesFlag = 0; 1956 requestLayout(); 1957 } 1958 } 1959 1960 /** 1961 * Figures out the measure spec for the root view in a window based on it's 1962 * layout params. 1963 * 1964 * @param windowSize 1965 * The available width or height of the window 1966 * 1967 * @param rootDimension 1968 * The layout params for one dimension (width or height) of the 1969 * window. 1970 * 1971 * @return The measure spec to use to measure the root view. 1972 */ 1973 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1974 int measureSpec; 1975 switch (rootDimension) { 1976 1977 case ViewGroup.LayoutParams.MATCH_PARENT: 1978 // Window can't resize. Force root view to be windowSize. 1979 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1980 break; 1981 case ViewGroup.LayoutParams.WRAP_CONTENT: 1982 // Window can resize. Set max size for root view. 1983 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1984 break; 1985 default: 1986 // Window wants to be an exact size. Force root view to be that size. 1987 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1988 break; 1989 } 1990 return measureSpec; 1991 } 1992 1993 int mHardwareYOffset; 1994 int mResizeAlpha; 1995 final Paint mResizePaint = new Paint(); 1996 1997 public void onHardwarePreDraw(HardwareCanvas canvas) { 1998 canvas.translate(0, -mHardwareYOffset); 1999 } 2000 2001 public void onHardwarePostDraw(HardwareCanvas canvas) { 2002 if (mResizeBuffer != null) { 2003 mResizePaint.setAlpha(mResizeAlpha); 2004 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2005 } 2006 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2007 } 2008 2009 /** 2010 * @hide 2011 */ 2012 void outputDisplayList(View view) { 2013 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2014 DisplayList displayList = view.getDisplayList(); 2015 if (displayList != null) { 2016 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2017 } 2018 } 2019 } 2020 2021 /** 2022 * @see #PROPERTY_PROFILE_RENDERING 2023 */ 2024 private void profileRendering(boolean enabled) { 2025 if (mProfileRendering) { 2026 mRenderProfilingEnabled = enabled; 2027 if (mRenderProfiler == null) { 2028 mRenderProfiler = new Thread(new Runnable() { 2029 @Override 2030 public void run() { 2031 Log.d(TAG, "Starting profiling thread"); 2032 while (mRenderProfilingEnabled) { 2033 mAttachInfo.mHandler.post(new Runnable() { 2034 @Override 2035 public void run() { 2036 mDirty.set(0, 0, mWidth, mHeight); 2037 scheduleTraversals(); 2038 } 2039 }); 2040 try { 2041 // TODO: This should use vsync when we get an API 2042 Thread.sleep(15); 2043 } catch (InterruptedException e) { 2044 Log.d(TAG, "Exiting profiling thread"); 2045 } 2046 } 2047 } 2048 }, "Rendering Profiler"); 2049 mRenderProfiler.start(); 2050 } else { 2051 mRenderProfiler.interrupt(); 2052 mRenderProfiler = null; 2053 } 2054 } 2055 } 2056 2057 /** 2058 * Called from draw() when DEBUG_FPS is enabled 2059 */ 2060 private void trackFPS() { 2061 // Tracks frames per second drawn. First value in a series of draws may be bogus 2062 // because it down not account for the intervening idle time 2063 long nowTime = System.currentTimeMillis(); 2064 if (mFpsStartTime < 0) { 2065 mFpsStartTime = mFpsPrevTime = nowTime; 2066 mFpsNumFrames = 0; 2067 } else { 2068 ++mFpsNumFrames; 2069 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2070 long frameTime = nowTime - mFpsPrevTime; 2071 long totalTime = nowTime - mFpsStartTime; 2072 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2073 mFpsPrevTime = nowTime; 2074 if (totalTime > 1000) { 2075 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2076 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2077 mFpsStartTime = nowTime; 2078 mFpsNumFrames = 0; 2079 } 2080 } 2081 } 2082 2083 private void performDraw() { 2084 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2085 return; 2086 } 2087 2088 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2089 mFullRedrawNeeded = false; 2090 2091 mIsDrawing = true; 2092 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2093 try { 2094 draw(fullRedrawNeeded); 2095 } finally { 2096 mIsDrawing = false; 2097 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2098 } 2099 2100 if (mReportNextDraw) { 2101 mReportNextDraw = false; 2102 2103 if (LOCAL_LOGV) { 2104 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2105 } 2106 if (mSurfaceHolder != null && mSurface.isValid()) { 2107 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2108 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2109 if (callbacks != null) { 2110 for (SurfaceHolder.Callback c : callbacks) { 2111 if (c instanceof SurfaceHolder.Callback2) { 2112 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2113 mSurfaceHolder); 2114 } 2115 } 2116 } 2117 } 2118 try { 2119 mWindowSession.finishDrawing(mWindow); 2120 } catch (RemoteException e) { 2121 } 2122 } 2123 } 2124 2125 private void draw(boolean fullRedrawNeeded) { 2126 Surface surface = mSurface; 2127 if (surface == null || !surface.isValid()) { 2128 return; 2129 } 2130 2131 if (DEBUG_FPS) { 2132 trackFPS(); 2133 } 2134 2135 if (!sFirstDrawComplete) { 2136 synchronized (sFirstDrawHandlers) { 2137 sFirstDrawComplete = true; 2138 final int count = sFirstDrawHandlers.size(); 2139 for (int i = 0; i< count; i++) { 2140 mHandler.post(sFirstDrawHandlers.get(i)); 2141 } 2142 } 2143 } 2144 2145 scrollToRectOrFocus(null, false); 2146 2147 final AttachInfo attachInfo = mAttachInfo; 2148 if (attachInfo.mViewScrollChanged) { 2149 attachInfo.mViewScrollChanged = false; 2150 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2151 } 2152 2153 int yoff; 2154 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2155 if (animating) { 2156 yoff = mScroller.getCurrY(); 2157 } else { 2158 yoff = mScrollY; 2159 } 2160 if (mCurScrollY != yoff) { 2161 mCurScrollY = yoff; 2162 fullRedrawNeeded = true; 2163 } 2164 2165 final float appScale = attachInfo.mApplicationScale; 2166 final boolean scalingRequired = attachInfo.mScalingRequired; 2167 2168 int resizeAlpha = 0; 2169 if (mResizeBuffer != null) { 2170 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2171 if (deltaTime < mResizeBufferDuration) { 2172 float amt = deltaTime/(float) mResizeBufferDuration; 2173 amt = mResizeInterpolator.getInterpolation(amt); 2174 animating = true; 2175 resizeAlpha = 255 - (int)(amt*255); 2176 } else { 2177 disposeResizeBuffer(); 2178 } 2179 } 2180 2181 final Rect dirty = mDirty; 2182 if (mSurfaceHolder != null) { 2183 // The app owns the surface, we won't draw. 2184 dirty.setEmpty(); 2185 if (animating) { 2186 if (mScroller != null) { 2187 mScroller.abortAnimation(); 2188 } 2189 disposeResizeBuffer(); 2190 } 2191 return; 2192 } 2193 2194 if (fullRedrawNeeded) { 2195 attachInfo.mIgnoreDirtyState = true; 2196 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2197 } 2198 2199 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2200 Log.v(TAG, "Draw " + mView + "/" 2201 + mWindowAttributes.getTitle() 2202 + ": dirty={" + dirty.left + "," + dirty.top 2203 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2204 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2205 appScale + ", width=" + mWidth + ", height=" + mHeight); 2206 } 2207 2208 attachInfo.mTreeObserver.dispatchOnDraw(); 2209 2210 if (!dirty.isEmpty() || mIsAnimating) { 2211 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2212 // Draw with hardware renderer. 2213 mIsAnimating = false; 2214 mHardwareYOffset = yoff; 2215 mResizeAlpha = resizeAlpha; 2216 2217 mCurrentDirty.set(dirty); 2218 mCurrentDirty.union(mPreviousDirty); 2219 mPreviousDirty.set(dirty); 2220 dirty.setEmpty(); 2221 2222 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2223 animating ? null : mCurrentDirty)) { 2224 mPreviousDirty.set(0, 0, mWidth, mHeight); 2225 } 2226 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2227 return; 2228 } 2229 } 2230 2231 if (animating) { 2232 mFullRedrawNeeded = true; 2233 scheduleTraversals(); 2234 } 2235 } 2236 2237 /** 2238 * @return true if drawing was succesfull, false if an error occurred 2239 */ 2240 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2241 boolean scalingRequired, Rect dirty) { 2242 2243 // If we get here with a disabled & requested hardware renderer, something went 2244 // wrong (an invalidate posted right before we destroyed the hardware surface 2245 // for instance) so we should just bail out. Locking the surface with software 2246 // rendering at this point would lock it forever and prevent hardware renderer 2247 // from doing its job when it comes back. 2248 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2249 attachInfo.mHardwareRenderer.isRequested()) { 2250 mFullRedrawNeeded = true; 2251 scheduleTraversals(); 2252 return false; 2253 } 2254 2255 // Draw with software renderer. 2256 Canvas canvas; 2257 try { 2258 int left = dirty.left; 2259 int top = dirty.top; 2260 int right = dirty.right; 2261 int bottom = dirty.bottom; 2262 2263 canvas = mSurface.lockCanvas(dirty); 2264 2265 if (left != dirty.left || top != dirty.top || right != dirty.right || 2266 bottom != dirty.bottom) { 2267 attachInfo.mIgnoreDirtyState = true; 2268 } 2269 2270 // TODO: Do this in native 2271 canvas.setDensity(mDensity); 2272 } catch (Surface.OutOfResourcesException e) { 2273 Log.e(TAG, "OutOfResourcesException locking surface", e); 2274 try { 2275 if (!mWindowSession.outOfMemory(mWindow)) { 2276 Slog.w(TAG, "No processes killed for memory; killing self"); 2277 Process.killProcess(Process.myPid()); 2278 } 2279 } catch (RemoteException ex) { 2280 } 2281 mLayoutRequested = true; // ask wm for a new surface next time. 2282 return false; 2283 } catch (IllegalArgumentException e) { 2284 Log.e(TAG, "Could not lock surface", e); 2285 // Don't assume this is due to out of memory, it could be 2286 // something else, and if it is something else then we could 2287 // kill stuff (or ourself) for no reason. 2288 mLayoutRequested = true; // ask wm for a new surface next time. 2289 return false; 2290 } 2291 2292 try { 2293 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2294 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2295 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2296 //canvas.drawARGB(255, 255, 0, 0); 2297 } 2298 2299 // If this bitmap's format includes an alpha channel, we 2300 // need to clear it before drawing so that the child will 2301 // properly re-composite its drawing on a transparent 2302 // background. This automatically respects the clip/dirty region 2303 // or 2304 // If we are applying an offset, we need to clear the area 2305 // where the offset doesn't appear to avoid having garbage 2306 // left in the blank areas. 2307 if (!canvas.isOpaque() || yoff != 0) { 2308 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2309 } 2310 2311 dirty.setEmpty(); 2312 mIsAnimating = false; 2313 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2314 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2315 2316 if (DEBUG_DRAW) { 2317 Context cxt = mView.getContext(); 2318 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2319 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2320 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2321 } 2322 try { 2323 canvas.translate(0, -yoff); 2324 if (mTranslator != null) { 2325 mTranslator.translateCanvas(canvas); 2326 } 2327 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2328 attachInfo.mSetIgnoreDirtyState = false; 2329 2330 mView.draw(canvas); 2331 2332 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2333 } finally { 2334 if (!attachInfo.mSetIgnoreDirtyState) { 2335 // Only clear the flag if it was not set during the mView.draw() call 2336 attachInfo.mIgnoreDirtyState = false; 2337 } 2338 } 2339 } finally { 2340 try { 2341 surface.unlockCanvasAndPost(canvas); 2342 } catch (IllegalArgumentException e) { 2343 Log.e(TAG, "Could not unlock surface", e); 2344 mLayoutRequested = true; // ask wm for a new surface next time. 2345 //noinspection ReturnInsideFinallyBlock 2346 return false; 2347 } 2348 2349 if (LOCAL_LOGV) { 2350 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2351 } 2352 } 2353 return true; 2354 } 2355 2356 /** 2357 * We want to draw a highlight around the current accessibility focused. 2358 * Since adding a style for all possible view is not a viable option we 2359 * have this specialized drawing method. 2360 * 2361 * Note: We are doing this here to be able to draw the highlight for 2362 * virtual views in addition to real ones. 2363 * 2364 * @param canvas The canvas on which to draw. 2365 */ 2366 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2367 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2368 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2369 return; 2370 } 2371 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2372 return; 2373 } 2374 Drawable drawable = getAccessibilityFocusedDrawable(); 2375 if (drawable == null) { 2376 return; 2377 } 2378 AccessibilityNodeProvider provider = 2379 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2380 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2381 if (provider == null) { 2382 mAccessibilityFocusedHost.getDrawingRect(bounds); 2383 if (mView instanceof ViewGroup) { 2384 ViewGroup viewGroup = (ViewGroup) mView; 2385 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2386 } 2387 } else { 2388 if (mAccessibilityFocusedVirtualView == null) { 2389 return; 2390 } 2391 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2392 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2393 } 2394 drawable.setBounds(bounds); 2395 drawable.draw(canvas); 2396 } 2397 2398 private Drawable getAccessibilityFocusedDrawable() { 2399 if (mAttachInfo != null) { 2400 // Lazily load the accessibility focus drawable. 2401 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2402 TypedValue value = new TypedValue(); 2403 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2404 R.attr.accessibilityFocusedDrawable, value, true); 2405 if (resolved) { 2406 mAttachInfo.mAccessibilityFocusDrawable = 2407 mView.mContext.getResources().getDrawable(value.resourceId); 2408 } 2409 } 2410 return mAttachInfo.mAccessibilityFocusDrawable; 2411 } 2412 return null; 2413 } 2414 2415 void invalidateDisplayLists() { 2416 final ArrayList<DisplayList> displayLists = mDisplayLists; 2417 final int count = displayLists.size(); 2418 2419 for (int i = 0; i < count; i++) { 2420 final DisplayList displayList = displayLists.get(i); 2421 displayList.invalidate(); 2422 displayList.clear(); 2423 } 2424 2425 displayLists.clear(); 2426 } 2427 2428 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2429 final View.AttachInfo attachInfo = mAttachInfo; 2430 final Rect ci = attachInfo.mContentInsets; 2431 final Rect vi = attachInfo.mVisibleInsets; 2432 int scrollY = 0; 2433 boolean handled = false; 2434 2435 if (vi.left > ci.left || vi.top > ci.top 2436 || vi.right > ci.right || vi.bottom > ci.bottom) { 2437 // We'll assume that we aren't going to change the scroll 2438 // offset, since we want to avoid that unless it is actually 2439 // going to make the focus visible... otherwise we scroll 2440 // all over the place. 2441 scrollY = mScrollY; 2442 // We can be called for two different situations: during a draw, 2443 // to update the scroll position if the focus has changed (in which 2444 // case 'rectangle' is null), or in response to a 2445 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2446 // is non-null and we just want to scroll to whatever that 2447 // rectangle is). 2448 View focus = mRealFocusedView; 2449 2450 // When in touch mode, focus points to the previously focused view, 2451 // which may have been removed from the view hierarchy. The following 2452 // line checks whether the view is still in our hierarchy. 2453 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2454 mRealFocusedView = null; 2455 return false; 2456 } 2457 2458 if (focus != mLastScrolledFocus) { 2459 // If the focus has changed, then ignore any requests to scroll 2460 // to a rectangle; first we want to make sure the entire focus 2461 // view is visible. 2462 rectangle = null; 2463 } 2464 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2465 + " rectangle=" + rectangle + " ci=" + ci 2466 + " vi=" + vi); 2467 if (focus == mLastScrolledFocus && !mScrollMayChange 2468 && rectangle == null) { 2469 // Optimization: if the focus hasn't changed since last 2470 // time, and no layout has happened, then just leave things 2471 // as they are. 2472 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2473 + mScrollY + " vi=" + vi.toShortString()); 2474 } else if (focus != null) { 2475 // We need to determine if the currently focused view is 2476 // within the visible part of the window and, if not, apply 2477 // a pan so it can be seen. 2478 mLastScrolledFocus = focus; 2479 mScrollMayChange = false; 2480 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2481 // Try to find the rectangle from the focus view. 2482 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2483 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2484 + mView.getWidth() + " h=" + mView.getHeight() 2485 + " ci=" + ci.toShortString() 2486 + " vi=" + vi.toShortString()); 2487 if (rectangle == null) { 2488 focus.getFocusedRect(mTempRect); 2489 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2490 + ": focusRect=" + mTempRect.toShortString()); 2491 if (mView instanceof ViewGroup) { 2492 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2493 focus, mTempRect); 2494 } 2495 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2496 "Focus in window: focusRect=" 2497 + mTempRect.toShortString() 2498 + " visRect=" + mVisRect.toShortString()); 2499 } else { 2500 mTempRect.set(rectangle); 2501 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2502 "Request scroll to rect: " 2503 + mTempRect.toShortString() 2504 + " visRect=" + mVisRect.toShortString()); 2505 } 2506 if (mTempRect.intersect(mVisRect)) { 2507 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2508 "Focus window visible rect: " 2509 + mTempRect.toShortString()); 2510 if (mTempRect.height() > 2511 (mView.getHeight()-vi.top-vi.bottom)) { 2512 // If the focus simply is not going to fit, then 2513 // best is probably just to leave things as-is. 2514 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2515 "Too tall; leaving scrollY=" + scrollY); 2516 } else if ((mTempRect.top-scrollY) < vi.top) { 2517 scrollY -= vi.top - (mTempRect.top-scrollY); 2518 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2519 "Top covered; scrollY=" + scrollY); 2520 } else if ((mTempRect.bottom-scrollY) 2521 > (mView.getHeight()-vi.bottom)) { 2522 scrollY += (mTempRect.bottom-scrollY) 2523 - (mView.getHeight()-vi.bottom); 2524 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2525 "Bottom covered; scrollY=" + scrollY); 2526 } 2527 handled = true; 2528 } 2529 } 2530 } 2531 } 2532 2533 if (scrollY != mScrollY) { 2534 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2535 + mScrollY + " , new=" + scrollY); 2536 if (!immediate && mResizeBuffer == null) { 2537 if (mScroller == null) { 2538 mScroller = new Scroller(mView.getContext()); 2539 } 2540 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2541 } else if (mScroller != null) { 2542 mScroller.abortAnimation(); 2543 } 2544 mScrollY = scrollY; 2545 } 2546 2547 return handled; 2548 } 2549 2550 /** 2551 * @hide 2552 */ 2553 public View getAccessibilityFocusedHost() { 2554 return mAccessibilityFocusedHost; 2555 } 2556 2557 /** 2558 * @hide 2559 */ 2560 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2561 return mAccessibilityFocusedVirtualView; 2562 } 2563 2564 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2565 // If we have a virtual view with accessibility focus we need 2566 // to clear the focus and invalidate the virtual view bounds. 2567 if (mAccessibilityFocusedVirtualView != null) { 2568 2569 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2570 View focusHost = mAccessibilityFocusedHost; 2571 focusHost.clearAccessibilityFocusNoCallbacks(); 2572 2573 // Wipe the state of the current accessibility focus since 2574 // the call into the provider to clear accessibility focus 2575 // will fire an accessibility event which will end up calling 2576 // this method and we want to have clean state when this 2577 // invocation happens. 2578 mAccessibilityFocusedHost = null; 2579 mAccessibilityFocusedVirtualView = null; 2580 2581 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2582 if (provider != null) { 2583 // Invalidate the area of the cleared accessibility focus. 2584 focusNode.getBoundsInParent(mTempRect); 2585 focusHost.invalidate(mTempRect); 2586 // Clear accessibility focus in the virtual node. 2587 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2588 focusNode.getSourceNodeId()); 2589 provider.performAction(virtualNodeId, 2590 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2591 } 2592 focusNode.recycle(); 2593 } 2594 if (mAccessibilityFocusedHost != null) { 2595 // Clear accessibility focus in the view. 2596 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2597 } 2598 2599 // Set the new focus host and node. 2600 mAccessibilityFocusedHost = view; 2601 mAccessibilityFocusedVirtualView = node; 2602 } 2603 2604 public void requestChildFocus(View child, View focused) { 2605 checkThread(); 2606 2607 if (DEBUG_INPUT_RESIZE) { 2608 Log.v(TAG, "Request child focus: focus now " + focused); 2609 } 2610 2611 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2612 scheduleTraversals(); 2613 2614 mFocusedView = mRealFocusedView = focused; 2615 } 2616 2617 public void clearChildFocus(View child) { 2618 checkThread(); 2619 2620 if (DEBUG_INPUT_RESIZE) { 2621 Log.v(TAG, "Clearing child focus"); 2622 } 2623 2624 mOldFocusedView = mFocusedView; 2625 2626 // Invoke the listener only if there is no view to take focus 2627 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2628 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2629 } 2630 2631 mFocusedView = mRealFocusedView = null; 2632 } 2633 2634 @Override 2635 public ViewParent getParentForAccessibility() { 2636 return null; 2637 } 2638 2639 public void focusableViewAvailable(View v) { 2640 checkThread(); 2641 if (mView != null) { 2642 if (!mView.hasFocus()) { 2643 v.requestFocus(); 2644 } else { 2645 // the one case where will transfer focus away from the current one 2646 // is if the current view is a view group that prefers to give focus 2647 // to its children first AND the view is a descendant of it. 2648 mFocusedView = mView.findFocus(); 2649 boolean descendantsHaveDibsOnFocus = 2650 (mFocusedView instanceof ViewGroup) && 2651 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2652 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2653 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2654 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2655 v.requestFocus(); 2656 } 2657 } 2658 } 2659 } 2660 2661 public void recomputeViewAttributes(View child) { 2662 checkThread(); 2663 if (mView == child) { 2664 mAttachInfo.mRecomputeGlobalAttributes = true; 2665 if (!mWillDrawSoon) { 2666 scheduleTraversals(); 2667 } 2668 } 2669 } 2670 2671 void dispatchDetachedFromWindow() { 2672 if (mView != null && mView.mAttachInfo != null) { 2673 if (mAttachInfo.mHardwareRenderer != null && 2674 mAttachInfo.mHardwareRenderer.isEnabled()) { 2675 mAttachInfo.mHardwareRenderer.validate(); 2676 } 2677 mView.dispatchDetachedFromWindow(); 2678 } 2679 2680 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2681 mAccessibilityManager.removeAccessibilityStateChangeListener( 2682 mAccessibilityInteractionConnectionManager); 2683 removeSendWindowContentChangedCallback(); 2684 2685 destroyHardwareRenderer(); 2686 2687 setAccessibilityFocus(null, null); 2688 2689 mView = null; 2690 mAttachInfo.mRootView = null; 2691 mAttachInfo.mSurface = null; 2692 2693 mSurface.release(); 2694 2695 if (mInputQueueCallback != null && mInputQueue != null) { 2696 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2697 mInputQueueCallback = null; 2698 mInputQueue = null; 2699 } else if (mInputEventReceiver != null) { 2700 mInputEventReceiver.dispose(); 2701 mInputEventReceiver = null; 2702 } 2703 try { 2704 mWindowSession.remove(mWindow); 2705 } catch (RemoteException e) { 2706 } 2707 2708 // Dispose the input channel after removing the window so the Window Manager 2709 // doesn't interpret the input channel being closed as an abnormal termination. 2710 if (mInputChannel != null) { 2711 mInputChannel.dispose(); 2712 mInputChannel = null; 2713 } 2714 2715 unscheduleTraversals(); 2716 } 2717 2718 void updateConfiguration(Configuration config, boolean force) { 2719 if (DEBUG_CONFIGURATION) Log.v(TAG, 2720 "Applying new config to window " 2721 + mWindowAttributes.getTitle() 2722 + ": " + config); 2723 2724 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2725 if (ci != null) { 2726 config = new Configuration(config); 2727 ci.applyToConfiguration(mNoncompatDensity, config); 2728 } 2729 2730 synchronized (sConfigCallbacks) { 2731 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2732 sConfigCallbacks.get(i).onConfigurationChanged(config); 2733 } 2734 } 2735 if (mView != null) { 2736 // At this point the resources have been updated to 2737 // have the most recent config, whatever that is. Use 2738 // the one in them which may be newer. 2739 config = mView.getResources().getConfiguration(); 2740 if (force || mLastConfiguration.diff(config) != 0) { 2741 mLastConfiguration.setTo(config); 2742 mView.dispatchConfigurationChanged(config); 2743 } 2744 } 2745 } 2746 2747 /** 2748 * Return true if child is an ancestor of parent, (or equal to the parent). 2749 */ 2750 public static boolean isViewDescendantOf(View child, View parent) { 2751 if (child == parent) { 2752 return true; 2753 } 2754 2755 final ViewParent theParent = child.getParent(); 2756 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2757 } 2758 2759 private static void forceLayout(View view) { 2760 view.forceLayout(); 2761 if (view instanceof ViewGroup) { 2762 ViewGroup group = (ViewGroup) view; 2763 final int count = group.getChildCount(); 2764 for (int i = 0; i < count; i++) { 2765 forceLayout(group.getChildAt(i)); 2766 } 2767 } 2768 } 2769 2770 private final static int MSG_INVALIDATE = 1; 2771 private final static int MSG_INVALIDATE_RECT = 2; 2772 private final static int MSG_DIE = 3; 2773 private final static int MSG_RESIZED = 4; 2774 private final static int MSG_RESIZED_REPORT = 5; 2775 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2776 private final static int MSG_DISPATCH_KEY = 7; 2777 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2778 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2779 private final static int MSG_IME_FINISHED_EVENT = 10; 2780 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2781 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2782 private final static int MSG_CHECK_FOCUS = 13; 2783 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2784 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2785 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2786 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2787 private final static int MSG_UPDATE_CONFIGURATION = 18; 2788 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2789 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2790 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2791 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2792 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2793 private final static int MSG_INVALIDATE_WORLD = 24; 2794 private final static int MSG_WINDOW_MOVED = 25; 2795 2796 final class ViewRootHandler extends Handler { 2797 @Override 2798 public String getMessageName(Message message) { 2799 switch (message.what) { 2800 case MSG_INVALIDATE: 2801 return "MSG_INVALIDATE"; 2802 case MSG_INVALIDATE_RECT: 2803 return "MSG_INVALIDATE_RECT"; 2804 case MSG_DIE: 2805 return "MSG_DIE"; 2806 case MSG_RESIZED: 2807 return "MSG_RESIZED"; 2808 case MSG_RESIZED_REPORT: 2809 return "MSG_RESIZED_REPORT"; 2810 case MSG_WINDOW_FOCUS_CHANGED: 2811 return "MSG_WINDOW_FOCUS_CHANGED"; 2812 case MSG_DISPATCH_KEY: 2813 return "MSG_DISPATCH_KEY"; 2814 case MSG_DISPATCH_APP_VISIBILITY: 2815 return "MSG_DISPATCH_APP_VISIBILITY"; 2816 case MSG_DISPATCH_GET_NEW_SURFACE: 2817 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2818 case MSG_IME_FINISHED_EVENT: 2819 return "MSG_IME_FINISHED_EVENT"; 2820 case MSG_DISPATCH_KEY_FROM_IME: 2821 return "MSG_DISPATCH_KEY_FROM_IME"; 2822 case MSG_FINISH_INPUT_CONNECTION: 2823 return "MSG_FINISH_INPUT_CONNECTION"; 2824 case MSG_CHECK_FOCUS: 2825 return "MSG_CHECK_FOCUS"; 2826 case MSG_CLOSE_SYSTEM_DIALOGS: 2827 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2828 case MSG_DISPATCH_DRAG_EVENT: 2829 return "MSG_DISPATCH_DRAG_EVENT"; 2830 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2831 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2832 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2833 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2834 case MSG_UPDATE_CONFIGURATION: 2835 return "MSG_UPDATE_CONFIGURATION"; 2836 case MSG_PROCESS_INPUT_EVENTS: 2837 return "MSG_PROCESS_INPUT_EVENTS"; 2838 case MSG_DISPATCH_SCREEN_STATE: 2839 return "MSG_DISPATCH_SCREEN_STATE"; 2840 case MSG_INVALIDATE_DISPLAY_LIST: 2841 return "MSG_INVALIDATE_DISPLAY_LIST"; 2842 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2843 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2844 case MSG_DISPATCH_DONE_ANIMATING: 2845 return "MSG_DISPATCH_DONE_ANIMATING"; 2846 case MSG_WINDOW_MOVED: 2847 return "MSG_WINDOW_MOVED"; 2848 } 2849 return super.getMessageName(message); 2850 } 2851 2852 @Override 2853 public void handleMessage(Message msg) { 2854 switch (msg.what) { 2855 case MSG_INVALIDATE: 2856 ((View) msg.obj).invalidate(); 2857 break; 2858 case MSG_INVALIDATE_RECT: 2859 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2860 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2861 info.release(); 2862 break; 2863 case MSG_IME_FINISHED_EVENT: 2864 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2865 break; 2866 case MSG_PROCESS_INPUT_EVENTS: 2867 mProcessInputEventsScheduled = false; 2868 doProcessInputEvents(); 2869 break; 2870 case MSG_DISPATCH_APP_VISIBILITY: 2871 handleAppVisibility(msg.arg1 != 0); 2872 break; 2873 case MSG_DISPATCH_GET_NEW_SURFACE: 2874 handleGetNewSurface(); 2875 break; 2876 case MSG_RESIZED: { 2877 // Recycled in the fall through... 2878 SomeArgs args = (SomeArgs) msg.obj; 2879 if (mWinFrame.equals(args.arg1) 2880 && mPendingContentInsets.equals(args.arg2) 2881 && mPendingVisibleInsets.equals(args.arg3) 2882 && args.arg4 == null) { 2883 break; 2884 } 2885 } // fall through... 2886 case MSG_RESIZED_REPORT: 2887 if (mAdded) { 2888 SomeArgs args = (SomeArgs) msg.obj; 2889 2890 Configuration config = (Configuration) args.arg4; 2891 if (config != null) { 2892 updateConfiguration(config, false); 2893 } 2894 2895 mWinFrame.set((Rect) args.arg1); 2896 mPendingContentInsets.set((Rect) args.arg2); 2897 mPendingVisibleInsets.set((Rect) args.arg3); 2898 2899 args.recycle(); 2900 2901 if (msg.what == MSG_RESIZED_REPORT) { 2902 mReportNextDraw = true; 2903 } 2904 2905 if (mView != null) { 2906 forceLayout(mView); 2907 } 2908 2909 requestLayout(); 2910 } 2911 break; 2912 case MSG_WINDOW_MOVED: 2913 if (mAdded) { 2914 final int w = mWinFrame.width(); 2915 final int h = mWinFrame.height(); 2916 final int l = msg.arg1; 2917 final int t = msg.arg2; 2918 mWinFrame.left = l; 2919 mWinFrame.right = l + w; 2920 mWinFrame.top = t; 2921 mWinFrame.bottom = t + h; 2922 2923 if (mView != null) { 2924 forceLayout(mView); 2925 } 2926 requestLayout(); 2927 } 2928 break; 2929 case MSG_WINDOW_FOCUS_CHANGED: { 2930 if (mAdded) { 2931 boolean hasWindowFocus = msg.arg1 != 0; 2932 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2933 2934 profileRendering(hasWindowFocus); 2935 2936 if (hasWindowFocus) { 2937 boolean inTouchMode = msg.arg2 != 0; 2938 ensureTouchModeLocally(inTouchMode); 2939 2940 if (mAttachInfo.mHardwareRenderer != null && 2941 mSurface != null && mSurface.isValid()) { 2942 mFullRedrawNeeded = true; 2943 try { 2944 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2945 mWidth, mHeight, mHolder.getSurface())) { 2946 mFullRedrawNeeded = true; 2947 } 2948 } catch (Surface.OutOfResourcesException e) { 2949 Log.e(TAG, "OutOfResourcesException locking surface", e); 2950 try { 2951 if (!mWindowSession.outOfMemory(mWindow)) { 2952 Slog.w(TAG, "No processes killed for memory; killing self"); 2953 Process.killProcess(Process.myPid()); 2954 } 2955 } catch (RemoteException ex) { 2956 } 2957 // Retry in a bit. 2958 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2959 return; 2960 } 2961 } 2962 } 2963 2964 mLastWasImTarget = WindowManager.LayoutParams 2965 .mayUseInputMethod(mWindowAttributes.flags); 2966 2967 InputMethodManager imm = InputMethodManager.peekInstance(); 2968 if (mView != null) { 2969 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2970 imm.startGettingWindowFocus(mView); 2971 } 2972 mAttachInfo.mKeyDispatchState.reset(); 2973 mView.dispatchWindowFocusChanged(hasWindowFocus); 2974 } 2975 2976 // Note: must be done after the focus change callbacks, 2977 // so all of the view state is set up correctly. 2978 if (hasWindowFocus) { 2979 if (imm != null && mLastWasImTarget) { 2980 imm.onWindowFocus(mView, mView.findFocus(), 2981 mWindowAttributes.softInputMode, 2982 !mHasHadWindowFocus, mWindowAttributes.flags); 2983 } 2984 // Clear the forward bit. We can just do this directly, since 2985 // the window manager doesn't care about it. 2986 mWindowAttributes.softInputMode &= 2987 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2988 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2989 .softInputMode &= 2990 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2991 mHasHadWindowFocus = true; 2992 } 2993 2994 setAccessibilityFocus(null, null); 2995 2996 if (mView != null && mAccessibilityManager.isEnabled()) { 2997 if (hasWindowFocus) { 2998 mView.sendAccessibilityEvent( 2999 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3000 } 3001 } 3002 } 3003 } break; 3004 case MSG_DIE: 3005 doDie(); 3006 break; 3007 case MSG_DISPATCH_KEY: { 3008 KeyEvent event = (KeyEvent)msg.obj; 3009 enqueueInputEvent(event, null, 0, true); 3010 } break; 3011 case MSG_DISPATCH_KEY_FROM_IME: { 3012 if (LOCAL_LOGV) Log.v( 3013 TAG, "Dispatching key " 3014 + msg.obj + " from IME to " + mView); 3015 KeyEvent event = (KeyEvent)msg.obj; 3016 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3017 // The IME is trying to say this event is from the 3018 // system! Bad bad bad! 3019 //noinspection UnusedAssignment 3020 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3021 } 3022 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3023 } break; 3024 case MSG_FINISH_INPUT_CONNECTION: { 3025 InputMethodManager imm = InputMethodManager.peekInstance(); 3026 if (imm != null) { 3027 imm.reportFinishInputConnection((InputConnection)msg.obj); 3028 } 3029 } break; 3030 case MSG_CHECK_FOCUS: { 3031 InputMethodManager imm = InputMethodManager.peekInstance(); 3032 if (imm != null) { 3033 imm.checkFocus(); 3034 } 3035 } break; 3036 case MSG_CLOSE_SYSTEM_DIALOGS: { 3037 if (mView != null) { 3038 mView.onCloseSystemDialogs((String)msg.obj); 3039 } 3040 } break; 3041 case MSG_DISPATCH_DRAG_EVENT: 3042 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3043 DragEvent event = (DragEvent)msg.obj; 3044 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3045 handleDragEvent(event); 3046 } break; 3047 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3048 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3049 } break; 3050 case MSG_UPDATE_CONFIGURATION: { 3051 Configuration config = (Configuration)msg.obj; 3052 if (config.isOtherSeqNewer(mLastConfiguration)) { 3053 config = mLastConfiguration; 3054 } 3055 updateConfiguration(config, false); 3056 } break; 3057 case MSG_DISPATCH_SCREEN_STATE: { 3058 if (mView != null) { 3059 handleScreenStateChange(msg.arg1 == 1); 3060 } 3061 } break; 3062 case MSG_INVALIDATE_DISPLAY_LIST: { 3063 invalidateDisplayLists(); 3064 } break; 3065 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3066 setAccessibilityFocus(null, null); 3067 } break; 3068 case MSG_DISPATCH_DONE_ANIMATING: { 3069 handleDispatchDoneAnimating(); 3070 } break; 3071 case MSG_INVALIDATE_WORLD: { 3072 if (mView != null) { 3073 invalidateWorld(mView); 3074 } 3075 } break; 3076 } 3077 } 3078 } 3079 3080 final ViewRootHandler mHandler = new ViewRootHandler(); 3081 3082 /** 3083 * Something in the current window tells us we need to change the touch mode. For 3084 * example, we are not in touch mode, and the user touches the screen. 3085 * 3086 * If the touch mode has changed, tell the window manager, and handle it locally. 3087 * 3088 * @param inTouchMode Whether we want to be in touch mode. 3089 * @return True if the touch mode changed and focus changed was changed as a result 3090 */ 3091 boolean ensureTouchMode(boolean inTouchMode) { 3092 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3093 + "touch mode is " + mAttachInfo.mInTouchMode); 3094 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3095 3096 // tell the window manager 3097 try { 3098 mWindowSession.setInTouchMode(inTouchMode); 3099 } catch (RemoteException e) { 3100 throw new RuntimeException(e); 3101 } 3102 3103 // handle the change 3104 return ensureTouchModeLocally(inTouchMode); 3105 } 3106 3107 /** 3108 * Ensure that the touch mode for this window is set, and if it is changing, 3109 * take the appropriate action. 3110 * @param inTouchMode Whether we want to be in touch mode. 3111 * @return True if the touch mode changed and focus changed was changed as a result 3112 */ 3113 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3114 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3115 + "touch mode is " + mAttachInfo.mInTouchMode); 3116 3117 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3118 3119 mAttachInfo.mInTouchMode = inTouchMode; 3120 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3121 3122 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3123 } 3124 3125 private boolean enterTouchMode() { 3126 if (mView != null) { 3127 if (mView.hasFocus()) { 3128 // note: not relying on mFocusedView here because this could 3129 // be when the window is first being added, and mFocused isn't 3130 // set yet. 3131 final View focused = mView.findFocus(); 3132 if (focused != null && !focused.isFocusableInTouchMode()) { 3133 3134 final ViewGroup ancestorToTakeFocus = 3135 findAncestorToTakeFocusInTouchMode(focused); 3136 if (ancestorToTakeFocus != null) { 3137 // there is an ancestor that wants focus after its descendants that 3138 // is focusable in touch mode.. give it focus 3139 return ancestorToTakeFocus.requestFocus(); 3140 } else { 3141 // nothing appropriate to have focus in touch mode, clear it out 3142 mView.unFocus(); 3143 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3144 mFocusedView = null; 3145 mOldFocusedView = null; 3146 return true; 3147 } 3148 } 3149 } 3150 } 3151 return false; 3152 } 3153 3154 /** 3155 * Find an ancestor of focused that wants focus after its descendants and is 3156 * focusable in touch mode. 3157 * @param focused The currently focused view. 3158 * @return An appropriate view, or null if no such view exists. 3159 */ 3160 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3161 ViewParent parent = focused.getParent(); 3162 while (parent instanceof ViewGroup) { 3163 final ViewGroup vgParent = (ViewGroup) parent; 3164 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3165 && vgParent.isFocusableInTouchMode()) { 3166 return vgParent; 3167 } 3168 if (vgParent.isRootNamespace()) { 3169 return null; 3170 } else { 3171 parent = vgParent.getParent(); 3172 } 3173 } 3174 return null; 3175 } 3176 3177 private boolean leaveTouchMode() { 3178 if (mView != null) { 3179 if (mView.hasFocus()) { 3180 // i learned the hard way to not trust mFocusedView :) 3181 mFocusedView = mView.findFocus(); 3182 if (!(mFocusedView instanceof ViewGroup)) { 3183 // some view has focus, let it keep it 3184 return false; 3185 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3186 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3187 // some view group has focus, and doesn't prefer its children 3188 // over itself for focus, so let them keep it. 3189 return false; 3190 } 3191 } 3192 3193 // find the best view to give focus to in this brave new non-touch-mode 3194 // world 3195 final View focused = focusSearch(null, View.FOCUS_DOWN); 3196 if (focused != null) { 3197 return focused.requestFocus(View.FOCUS_DOWN); 3198 } 3199 } 3200 return false; 3201 } 3202 3203 private void deliverInputEvent(QueuedInputEvent q) { 3204 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3205 try { 3206 if (q.mEvent instanceof KeyEvent) { 3207 deliverKeyEvent(q); 3208 } else { 3209 final int source = q.mEvent.getSource(); 3210 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3211 deliverPointerEvent(q); 3212 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3213 deliverTrackballEvent(q); 3214 } else { 3215 deliverGenericMotionEvent(q); 3216 } 3217 } 3218 } finally { 3219 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3220 } 3221 } 3222 3223 private void deliverPointerEvent(QueuedInputEvent q) { 3224 final MotionEvent event = (MotionEvent)q.mEvent; 3225 final boolean isTouchEvent = event.isTouchEvent(); 3226 if (mInputEventConsistencyVerifier != null) { 3227 if (isTouchEvent) { 3228 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3229 } else { 3230 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3231 } 3232 } 3233 3234 // If there is no view, then the event will not be handled. 3235 if (mView == null || !mAdded) { 3236 finishInputEvent(q, false); 3237 return; 3238 } 3239 3240 // Translate the pointer event for compatibility, if needed. 3241 if (mTranslator != null) { 3242 mTranslator.translateEventInScreenToAppWindow(event); 3243 } 3244 3245 // Enter touch mode on down or scroll. 3246 final int action = event.getAction(); 3247 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3248 ensureTouchMode(true); 3249 } 3250 3251 // Offset the scroll position. 3252 if (mCurScrollY != 0) { 3253 event.offsetLocation(0, mCurScrollY); 3254 } 3255 if (MEASURE_LATENCY) { 3256 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3257 } 3258 3259 // Remember the touch position for possible drag-initiation. 3260 if (isTouchEvent) { 3261 mLastTouchPoint.x = event.getRawX(); 3262 mLastTouchPoint.y = event.getRawY(); 3263 } 3264 3265 // Dispatch touch to view hierarchy. 3266 boolean handled = mView.dispatchPointerEvent(event); 3267 if (MEASURE_LATENCY) { 3268 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3269 } 3270 if (handled) { 3271 finishInputEvent(q, true); 3272 return; 3273 } 3274 3275 // Pointer event was unhandled. 3276 finishInputEvent(q, false); 3277 } 3278 3279 private void deliverTrackballEvent(QueuedInputEvent q) { 3280 final MotionEvent event = (MotionEvent)q.mEvent; 3281 if (mInputEventConsistencyVerifier != null) { 3282 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3283 } 3284 3285 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3286 if (LOCAL_LOGV) 3287 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3288 3289 // Dispatch to the IME before propagating down the view hierarchy. 3290 // The IME will eventually call back into handleImeFinishedEvent. 3291 if (mLastWasImTarget) { 3292 InputMethodManager imm = InputMethodManager.peekInstance(); 3293 if (imm != null) { 3294 final int seq = event.getSequenceNumber(); 3295 if (DEBUG_IMF) 3296 Log.v(TAG, "Sending trackball event to IME: seq=" 3297 + seq + " event=" + event); 3298 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3299 mInputMethodCallback); 3300 return; 3301 } 3302 } 3303 } 3304 3305 // Not dispatching to IME, continue with post IME actions. 3306 deliverTrackballEventPostIme(q); 3307 } 3308 3309 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3310 final MotionEvent event = (MotionEvent) q.mEvent; 3311 3312 // If there is no view, then the event will not be handled. 3313 if (mView == null || !mAdded) { 3314 finishInputEvent(q, false); 3315 return; 3316 } 3317 3318 // Deliver the trackball event to the view. 3319 if (mView.dispatchTrackballEvent(event)) { 3320 // If we reach this, we delivered a trackball event to mView and 3321 // mView consumed it. Because we will not translate the trackball 3322 // event into a key event, touch mode will not exit, so we exit 3323 // touch mode here. 3324 ensureTouchMode(false); 3325 3326 finishInputEvent(q, true); 3327 mLastTrackballTime = Integer.MIN_VALUE; 3328 return; 3329 } 3330 3331 // Translate the trackball event into DPAD keys and try to deliver those. 3332 final TrackballAxis x = mTrackballAxisX; 3333 final TrackballAxis y = mTrackballAxisY; 3334 3335 long curTime = SystemClock.uptimeMillis(); 3336 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3337 // It has been too long since the last movement, 3338 // so restart at the beginning. 3339 x.reset(0); 3340 y.reset(0); 3341 mLastTrackballTime = curTime; 3342 } 3343 3344 final int action = event.getAction(); 3345 final int metaState = event.getMetaState(); 3346 switch (action) { 3347 case MotionEvent.ACTION_DOWN: 3348 x.reset(2); 3349 y.reset(2); 3350 enqueueInputEvent(new KeyEvent(curTime, curTime, 3351 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3352 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3353 InputDevice.SOURCE_KEYBOARD)); 3354 break; 3355 case MotionEvent.ACTION_UP: 3356 x.reset(2); 3357 y.reset(2); 3358 enqueueInputEvent(new KeyEvent(curTime, curTime, 3359 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3360 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3361 InputDevice.SOURCE_KEYBOARD)); 3362 break; 3363 } 3364 3365 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3366 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3367 + " move=" + event.getX() 3368 + " / Y=" + y.position + " step=" 3369 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3370 + " move=" + event.getY()); 3371 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3372 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3373 3374 // Generate DPAD events based on the trackball movement. 3375 // We pick the axis that has moved the most as the direction of 3376 // the DPAD. When we generate DPAD events for one axis, then the 3377 // other axis is reset -- we don't want to perform DPAD jumps due 3378 // to slight movements in the trackball when making major movements 3379 // along the other axis. 3380 int keycode = 0; 3381 int movement = 0; 3382 float accel = 1; 3383 if (xOff > yOff) { 3384 movement = x.generate((2/event.getXPrecision())); 3385 if (movement != 0) { 3386 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3387 : KeyEvent.KEYCODE_DPAD_LEFT; 3388 accel = x.acceleration; 3389 y.reset(2); 3390 } 3391 } else if (yOff > 0) { 3392 movement = y.generate((2/event.getYPrecision())); 3393 if (movement != 0) { 3394 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3395 : KeyEvent.KEYCODE_DPAD_UP; 3396 accel = y.acceleration; 3397 x.reset(2); 3398 } 3399 } 3400 3401 if (keycode != 0) { 3402 if (movement < 0) movement = -movement; 3403 int accelMovement = (int)(movement * accel); 3404 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3405 + " accelMovement=" + accelMovement 3406 + " accel=" + accel); 3407 if (accelMovement > movement) { 3408 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3409 + keycode); 3410 movement--; 3411 int repeatCount = accelMovement - movement; 3412 enqueueInputEvent(new KeyEvent(curTime, curTime, 3413 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3414 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3415 InputDevice.SOURCE_KEYBOARD)); 3416 } 3417 while (movement > 0) { 3418 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3419 + keycode); 3420 movement--; 3421 curTime = SystemClock.uptimeMillis(); 3422 enqueueInputEvent(new KeyEvent(curTime, curTime, 3423 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3424 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3425 InputDevice.SOURCE_KEYBOARD)); 3426 enqueueInputEvent(new KeyEvent(curTime, curTime, 3427 KeyEvent.ACTION_UP, keycode, 0, metaState, 3428 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3429 InputDevice.SOURCE_KEYBOARD)); 3430 } 3431 mLastTrackballTime = curTime; 3432 } 3433 3434 // Unfortunately we can't tell whether the application consumed the keys, so 3435 // we always consider the trackball event handled. 3436 finishInputEvent(q, true); 3437 } 3438 3439 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3440 final MotionEvent event = (MotionEvent)q.mEvent; 3441 if (mInputEventConsistencyVerifier != null) { 3442 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3443 } 3444 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3445 if (LOCAL_LOGV) 3446 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3447 3448 // Dispatch to the IME before propagating down the view hierarchy. 3449 // The IME will eventually call back into handleImeFinishedEvent. 3450 if (mLastWasImTarget) { 3451 InputMethodManager imm = InputMethodManager.peekInstance(); 3452 if (imm != null) { 3453 final int seq = event.getSequenceNumber(); 3454 if (DEBUG_IMF) 3455 Log.v(TAG, "Sending generic motion event to IME: seq=" 3456 + seq + " event=" + event); 3457 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3458 mInputMethodCallback); 3459 return; 3460 } 3461 } 3462 } 3463 3464 // Not dispatching to IME, continue with post IME actions. 3465 deliverGenericMotionEventPostIme(q); 3466 } 3467 3468 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3469 final MotionEvent event = (MotionEvent) q.mEvent; 3470 final int source = event.getSource(); 3471 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3472 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3473 3474 // If there is no view, then the event will not be handled. 3475 if (mView == null || !mAdded) { 3476 if (isJoystick) { 3477 updateJoystickDirection(event, false); 3478 } else if (isTouchPad) { 3479 //Convert TouchPad motion into a TrackBall event 3480 mSimulatedTrackball.updateTrackballDirection(this, event); 3481 } 3482 finishInputEvent(q, false); 3483 return; 3484 } 3485 3486 // Deliver the event to the view. 3487 if (mView.dispatchGenericMotionEvent(event)) { 3488 if (isJoystick) { 3489 updateJoystickDirection(event, false); 3490 } else if (isTouchPad) { 3491 //Convert TouchPad motion into a TrackBall event 3492 mSimulatedTrackball.updateTrackballDirection(this, event); 3493 } 3494 finishInputEvent(q, true); 3495 return; 3496 } 3497 3498 if (isJoystick) { 3499 // Translate the joystick event into DPAD keys and try to deliver 3500 // those. 3501 updateJoystickDirection(event, true); 3502 finishInputEvent(q, true); 3503 } else if (isTouchPad) { 3504 //Convert TouchPad motion into a TrackBall event 3505 mSimulatedTrackball.updateTrackballDirection(this, event); 3506 finishInputEvent(q, true); 3507 } else { 3508 finishInputEvent(q, false); 3509 } 3510 } 3511 3512 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3513 final long time = event.getEventTime(); 3514 final int metaState = event.getMetaState(); 3515 final int deviceId = event.getDeviceId(); 3516 final int source = event.getSource(); 3517 3518 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3519 if (xDirection == 0) { 3520 xDirection = joystickAxisValueToDirection(event.getX()); 3521 } 3522 3523 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3524 if (yDirection == 0) { 3525 yDirection = joystickAxisValueToDirection(event.getY()); 3526 } 3527 3528 if (xDirection != mLastJoystickXDirection) { 3529 if (mLastJoystickXKeyCode != 0) { 3530 enqueueInputEvent(new KeyEvent(time, time, 3531 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3532 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3533 mLastJoystickXKeyCode = 0; 3534 } 3535 3536 mLastJoystickXDirection = xDirection; 3537 3538 if (xDirection != 0 && synthesizeNewKeys) { 3539 mLastJoystickXKeyCode = xDirection > 0 3540 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3541 enqueueInputEvent(new KeyEvent(time, time, 3542 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3543 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3544 } 3545 } 3546 3547 if (yDirection != mLastJoystickYDirection) { 3548 if (mLastJoystickYKeyCode != 0) { 3549 enqueueInputEvent(new KeyEvent(time, time, 3550 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3551 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3552 mLastJoystickYKeyCode = 0; 3553 } 3554 3555 mLastJoystickYDirection = yDirection; 3556 3557 if (yDirection != 0 && synthesizeNewKeys) { 3558 mLastJoystickYKeyCode = yDirection > 0 3559 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3560 enqueueInputEvent(new KeyEvent(time, time, 3561 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3562 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3563 } 3564 } 3565 } 3566 3567 private static int joystickAxisValueToDirection(float value) { 3568 if (value >= 0.5f) { 3569 return 1; 3570 } else if (value <= -0.5f) { 3571 return -1; 3572 } else { 3573 return 0; 3574 } 3575 } 3576 3577 /** 3578 * Returns true if the key is used for keyboard navigation. 3579 * @param keyEvent The key event. 3580 * @return True if the key is used for keyboard navigation. 3581 */ 3582 private static boolean isNavigationKey(KeyEvent keyEvent) { 3583 switch (keyEvent.getKeyCode()) { 3584 case KeyEvent.KEYCODE_DPAD_LEFT: 3585 case KeyEvent.KEYCODE_DPAD_RIGHT: 3586 case KeyEvent.KEYCODE_DPAD_UP: 3587 case KeyEvent.KEYCODE_DPAD_DOWN: 3588 case KeyEvent.KEYCODE_DPAD_CENTER: 3589 case KeyEvent.KEYCODE_PAGE_UP: 3590 case KeyEvent.KEYCODE_PAGE_DOWN: 3591 case KeyEvent.KEYCODE_MOVE_HOME: 3592 case KeyEvent.KEYCODE_MOVE_END: 3593 case KeyEvent.KEYCODE_TAB: 3594 case KeyEvent.KEYCODE_SPACE: 3595 case KeyEvent.KEYCODE_ENTER: 3596 return true; 3597 } 3598 return false; 3599 } 3600 3601 /** 3602 * Returns true if the key is used for typing. 3603 * @param keyEvent The key event. 3604 * @return True if the key is used for typing. 3605 */ 3606 private static boolean isTypingKey(KeyEvent keyEvent) { 3607 return keyEvent.getUnicodeChar() > 0; 3608 } 3609 3610 /** 3611 * See if the key event means we should leave touch mode (and leave touch mode if so). 3612 * @param event The key event. 3613 * @return Whether this key event should be consumed (meaning the act of 3614 * leaving touch mode alone is considered the event). 3615 */ 3616 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3617 // Only relevant in touch mode. 3618 if (!mAttachInfo.mInTouchMode) { 3619 return false; 3620 } 3621 3622 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3623 final int action = event.getAction(); 3624 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3625 return false; 3626 } 3627 3628 // Don't leave touch mode if the IME told us not to. 3629 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3630 return false; 3631 } 3632 3633 // If the key can be used for keyboard navigation then leave touch mode 3634 // and select a focused view if needed (in ensureTouchMode). 3635 // When a new focused view is selected, we consume the navigation key because 3636 // navigation doesn't make much sense unless a view already has focus so 3637 // the key's purpose is to set focus. 3638 if (isNavigationKey(event)) { 3639 return ensureTouchMode(false); 3640 } 3641 3642 // If the key can be used for typing then leave touch mode 3643 // and select a focused view if needed (in ensureTouchMode). 3644 // Always allow the view to process the typing key. 3645 if (isTypingKey(event)) { 3646 ensureTouchMode(false); 3647 return false; 3648 } 3649 3650 return false; 3651 } 3652 3653 private void deliverKeyEvent(QueuedInputEvent q) { 3654 final KeyEvent event = (KeyEvent)q.mEvent; 3655 if (mInputEventConsistencyVerifier != null) { 3656 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3657 } 3658 3659 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3660 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3661 3662 // Perform predispatching before the IME. 3663 if (mView.dispatchKeyEventPreIme(event)) { 3664 finishInputEvent(q, true); 3665 return; 3666 } 3667 3668 // Dispatch to the IME before propagating down the view hierarchy. 3669 // The IME will eventually call back into handleImeFinishedEvent. 3670 if (mLastWasImTarget) { 3671 InputMethodManager imm = InputMethodManager.peekInstance(); 3672 if (imm != null) { 3673 final int seq = event.getSequenceNumber(); 3674 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3675 + seq + " event=" + event); 3676 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3677 return; 3678 } 3679 } 3680 } 3681 3682 // Not dispatching to IME, continue with post IME actions. 3683 deliverKeyEventPostIme(q); 3684 } 3685 3686 void handleImeFinishedEvent(int seq, boolean handled) { 3687 final QueuedInputEvent q = mCurrentInputEvent; 3688 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3689 if (DEBUG_IMF) { 3690 Log.v(TAG, "IME finished event: seq=" + seq 3691 + " handled=" + handled + " event=" + q); 3692 } 3693 if (handled) { 3694 finishInputEvent(q, true); 3695 } else { 3696 if (q.mEvent instanceof KeyEvent) { 3697 KeyEvent event = (KeyEvent)q.mEvent; 3698 if (event.getAction() != KeyEvent.ACTION_UP) { 3699 // If the window doesn't currently have input focus, then drop 3700 // this event. This could be an event that came back from the 3701 // IME dispatch but the window has lost focus in the meantime. 3702 if (!mAttachInfo.mHasWindowFocus) { 3703 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3704 finishInputEvent(q, true); 3705 return; 3706 } 3707 } 3708 deliverKeyEventPostIme(q); 3709 } else { 3710 MotionEvent event = (MotionEvent)q.mEvent; 3711 if (event.getAction() != MotionEvent.ACTION_CANCEL 3712 && event.getAction() != MotionEvent.ACTION_UP) { 3713 // If the window doesn't currently have input focus, then drop 3714 // this event. This could be an event that came back from the 3715 // IME dispatch but the window has lost focus in the meantime. 3716 if (!mAttachInfo.mHasWindowFocus) { 3717 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3718 finishInputEvent(q, true); 3719 return; 3720 } 3721 } 3722 final int source = q.mEvent.getSource(); 3723 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3724 deliverTrackballEventPostIme(q); 3725 } else { 3726 deliverGenericMotionEventPostIme(q); 3727 } 3728 } 3729 } 3730 } else { 3731 if (DEBUG_IMF) { 3732 Log.v(TAG, "IME finished event: seq=" + seq 3733 + " handled=" + handled + ", event not found!"); 3734 } 3735 } 3736 } 3737 3738 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3739 final KeyEvent event = (KeyEvent)q.mEvent; 3740 3741 // If the view went away, then the event will not be handled. 3742 if (mView == null || !mAdded) { 3743 finishInputEvent(q, false); 3744 return; 3745 } 3746 3747 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3748 if (checkForLeavingTouchModeAndConsume(event)) { 3749 finishInputEvent(q, true); 3750 return; 3751 } 3752 3753 // Make sure the fallback event policy sees all keys that will be delivered to the 3754 // view hierarchy. 3755 mFallbackEventHandler.preDispatchKeyEvent(event); 3756 3757 // Deliver the key to the view hierarchy. 3758 if (mView.dispatchKeyEvent(event)) { 3759 finishInputEvent(q, true); 3760 return; 3761 } 3762 3763 // If the Control modifier is held, try to interpret the key as a shortcut. 3764 if (event.getAction() == KeyEvent.ACTION_DOWN 3765 && event.isCtrlPressed() 3766 && event.getRepeatCount() == 0 3767 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3768 if (mView.dispatchKeyShortcutEvent(event)) { 3769 finishInputEvent(q, true); 3770 return; 3771 } 3772 } 3773 3774 // Apply the fallback event policy. 3775 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3776 finishInputEvent(q, true); 3777 return; 3778 } 3779 3780 // Handle automatic focus changes. 3781 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3782 int direction = 0; 3783 switch (event.getKeyCode()) { 3784 case KeyEvent.KEYCODE_DPAD_LEFT: 3785 if (event.hasNoModifiers()) { 3786 direction = View.FOCUS_LEFT; 3787 } 3788 break; 3789 case KeyEvent.KEYCODE_DPAD_RIGHT: 3790 if (event.hasNoModifiers()) { 3791 direction = View.FOCUS_RIGHT; 3792 } 3793 break; 3794 case KeyEvent.KEYCODE_DPAD_UP: 3795 if (event.hasNoModifiers()) { 3796 direction = View.FOCUS_UP; 3797 } 3798 break; 3799 case KeyEvent.KEYCODE_DPAD_DOWN: 3800 if (event.hasNoModifiers()) { 3801 direction = View.FOCUS_DOWN; 3802 } 3803 break; 3804 case KeyEvent.KEYCODE_TAB: 3805 if (event.hasNoModifiers()) { 3806 direction = View.FOCUS_FORWARD; 3807 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3808 direction = View.FOCUS_BACKWARD; 3809 } 3810 break; 3811 } 3812 if (direction != 0) { 3813 View focused = mView.findFocus(); 3814 if (focused != null) { 3815 View v = focused.focusSearch(direction); 3816 if (v != null && v != focused) { 3817 // do the math the get the interesting rect 3818 // of previous focused into the coord system of 3819 // newly focused view 3820 focused.getFocusedRect(mTempRect); 3821 if (mView instanceof ViewGroup) { 3822 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3823 focused, mTempRect); 3824 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3825 v, mTempRect); 3826 } 3827 if (v.requestFocus(direction, mTempRect)) { 3828 playSoundEffect(SoundEffectConstants 3829 .getContantForFocusDirection(direction)); 3830 finishInputEvent(q, true); 3831 return; 3832 } 3833 } 3834 3835 // Give the focused view a last chance to handle the dpad key. 3836 if (mView.dispatchUnhandledMove(focused, direction)) { 3837 finishInputEvent(q, true); 3838 return; 3839 } 3840 } 3841 } 3842 } 3843 3844 // Key was unhandled. 3845 finishInputEvent(q, false); 3846 } 3847 3848 /* drag/drop */ 3849 void setLocalDragState(Object obj) { 3850 mLocalDragState = obj; 3851 } 3852 3853 private void handleDragEvent(DragEvent event) { 3854 // From the root, only drag start/end/location are dispatched. entered/exited 3855 // are determined and dispatched by the viewgroup hierarchy, who then report 3856 // that back here for ultimate reporting back to the framework. 3857 if (mView != null && mAdded) { 3858 final int what = event.mAction; 3859 3860 if (what == DragEvent.ACTION_DRAG_EXITED) { 3861 // A direct EXITED event means that the window manager knows we've just crossed 3862 // a window boundary, so the current drag target within this one must have 3863 // just been exited. Send it the usual notifications and then we're done 3864 // for now. 3865 mView.dispatchDragEvent(event); 3866 } else { 3867 // Cache the drag description when the operation starts, then fill it in 3868 // on subsequent calls as a convenience 3869 if (what == DragEvent.ACTION_DRAG_STARTED) { 3870 mCurrentDragView = null; // Start the current-recipient tracking 3871 mDragDescription = event.mClipDescription; 3872 } else { 3873 event.mClipDescription = mDragDescription; 3874 } 3875 3876 // For events with a [screen] location, translate into window coordinates 3877 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3878 mDragPoint.set(event.mX, event.mY); 3879 if (mTranslator != null) { 3880 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3881 } 3882 3883 if (mCurScrollY != 0) { 3884 mDragPoint.offset(0, mCurScrollY); 3885 } 3886 3887 event.mX = mDragPoint.x; 3888 event.mY = mDragPoint.y; 3889 } 3890 3891 // Remember who the current drag target is pre-dispatch 3892 final View prevDragView = mCurrentDragView; 3893 3894 // Now dispatch the drag/drop event 3895 boolean result = mView.dispatchDragEvent(event); 3896 3897 // If we changed apparent drag target, tell the OS about it 3898 if (prevDragView != mCurrentDragView) { 3899 try { 3900 if (prevDragView != null) { 3901 mWindowSession.dragRecipientExited(mWindow); 3902 } 3903 if (mCurrentDragView != null) { 3904 mWindowSession.dragRecipientEntered(mWindow); 3905 } 3906 } catch (RemoteException e) { 3907 Slog.e(TAG, "Unable to note drag target change"); 3908 } 3909 } 3910 3911 // Report the drop result when we're done 3912 if (what == DragEvent.ACTION_DROP) { 3913 mDragDescription = null; 3914 try { 3915 Log.i(TAG, "Reporting drop result: " + result); 3916 mWindowSession.reportDropResult(mWindow, result); 3917 } catch (RemoteException e) { 3918 Log.e(TAG, "Unable to report drop result"); 3919 } 3920 } 3921 3922 // When the drag operation ends, release any local state object 3923 // that may have been in use 3924 if (what == DragEvent.ACTION_DRAG_ENDED) { 3925 setLocalDragState(null); 3926 } 3927 } 3928 } 3929 event.recycle(); 3930 } 3931 3932 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3933 if (mSeq != args.seq) { 3934 // The sequence has changed, so we need to update our value and make 3935 // sure to do a traversal afterward so the window manager is given our 3936 // most recent data. 3937 mSeq = args.seq; 3938 mAttachInfo.mForceReportNewAttributes = true; 3939 scheduleTraversals(); 3940 } 3941 if (mView == null) return; 3942 if (args.localChanges != 0) { 3943 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3944 } 3945 if (mAttachInfo != null) { 3946 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3947 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3948 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3949 mView.dispatchSystemUiVisibilityChanged(visibility); 3950 } 3951 } 3952 } 3953 3954 public void handleDispatchDoneAnimating() { 3955 if (mWindowsAnimating) { 3956 mWindowsAnimating = false; 3957 if (!mDirty.isEmpty() || mIsAnimating) { 3958 scheduleTraversals(); 3959 } 3960 } 3961 } 3962 3963 public void getLastTouchPoint(Point outLocation) { 3964 outLocation.x = (int) mLastTouchPoint.x; 3965 outLocation.y = (int) mLastTouchPoint.y; 3966 } 3967 3968 public void setDragFocus(View newDragTarget) { 3969 if (mCurrentDragView != newDragTarget) { 3970 mCurrentDragView = newDragTarget; 3971 } 3972 } 3973 3974 private AudioManager getAudioManager() { 3975 if (mView == null) { 3976 throw new IllegalStateException("getAudioManager called when there is no mView"); 3977 } 3978 if (mAudioManager == null) { 3979 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3980 } 3981 return mAudioManager; 3982 } 3983 3984 public AccessibilityInteractionController getAccessibilityInteractionController() { 3985 if (mView == null) { 3986 throw new IllegalStateException("getAccessibilityInteractionController" 3987 + " called when there is no mView"); 3988 } 3989 if (mAccessibilityInteractionController == null) { 3990 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3991 } 3992 return mAccessibilityInteractionController; 3993 } 3994 3995 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3996 boolean insetsPending) throws RemoteException { 3997 3998 float appScale = mAttachInfo.mApplicationScale; 3999 boolean restore = false; 4000 if (params != null && mTranslator != null) { 4001 restore = true; 4002 params.backup(); 4003 mTranslator.translateWindowLayout(params); 4004 } 4005 if (params != null) { 4006 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4007 } 4008 mPendingConfiguration.seq = 0; 4009 //Log.d(TAG, ">>>>>> CALLING relayout"); 4010 if (params != null && mOrigWindowType != params.type) { 4011 // For compatibility with old apps, don't crash here. 4012 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4013 Slog.w(TAG, "Window type can not be changed after " 4014 + "the window is added; ignoring change of " + mView); 4015 params.type = mOrigWindowType; 4016 } 4017 } 4018 int relayoutResult = mWindowSession.relayout( 4019 mWindow, mSeq, params, 4020 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4021 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4022 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4023 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 4024 mPendingConfiguration, mSurface); 4025 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4026 if (restore) { 4027 params.restore(); 4028 } 4029 4030 if (mTranslator != null) { 4031 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4032 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4033 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4034 } 4035 return relayoutResult; 4036 } 4037 4038 /** 4039 * {@inheritDoc} 4040 */ 4041 public void playSoundEffect(int effectId) { 4042 checkThread(); 4043 4044 try { 4045 final AudioManager audioManager = getAudioManager(); 4046 4047 switch (effectId) { 4048 case SoundEffectConstants.CLICK: 4049 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4050 return; 4051 case SoundEffectConstants.NAVIGATION_DOWN: 4052 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4053 return; 4054 case SoundEffectConstants.NAVIGATION_LEFT: 4055 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4056 return; 4057 case SoundEffectConstants.NAVIGATION_RIGHT: 4058 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4059 return; 4060 case SoundEffectConstants.NAVIGATION_UP: 4061 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4062 return; 4063 default: 4064 throw new IllegalArgumentException("unknown effect id " + effectId + 4065 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4066 } 4067 } catch (IllegalStateException e) { 4068 // Exception thrown by getAudioManager() when mView is null 4069 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4070 e.printStackTrace(); 4071 } 4072 } 4073 4074 /** 4075 * {@inheritDoc} 4076 */ 4077 public boolean performHapticFeedback(int effectId, boolean always) { 4078 try { 4079 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4080 } catch (RemoteException e) { 4081 return false; 4082 } 4083 } 4084 4085 /** 4086 * {@inheritDoc} 4087 */ 4088 public View focusSearch(View focused, int direction) { 4089 checkThread(); 4090 if (!(mView instanceof ViewGroup)) { 4091 return null; 4092 } 4093 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4094 } 4095 4096 public void debug() { 4097 mView.debug(); 4098 } 4099 4100 public void dumpGfxInfo(int[] info) { 4101 info[0] = info[1] = 0; 4102 if (mView != null) { 4103 getGfxInfo(mView, info); 4104 } 4105 } 4106 4107 private static void getGfxInfo(View view, int[] info) { 4108 DisplayList displayList = view.mDisplayList; 4109 info[0]++; 4110 if (displayList != null) { 4111 info[1] += displayList.getSize(); 4112 } 4113 4114 if (view instanceof ViewGroup) { 4115 ViewGroup group = (ViewGroup) view; 4116 4117 int count = group.getChildCount(); 4118 for (int i = 0; i < count; i++) { 4119 getGfxInfo(group.getChildAt(i), info); 4120 } 4121 } 4122 } 4123 4124 public void die(boolean immediate) { 4125 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4126 // done by dispatchDetachedFromWindow will cause havoc on return. 4127 if (immediate && !mIsInTraversal) { 4128 doDie(); 4129 } else { 4130 if (!mIsDrawing) { 4131 destroyHardwareRenderer(); 4132 } else { 4133 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4134 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4135 } 4136 mHandler.sendEmptyMessage(MSG_DIE); 4137 } 4138 } 4139 4140 void doDie() { 4141 checkThread(); 4142 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4143 synchronized (this) { 4144 if (mAdded) { 4145 dispatchDetachedFromWindow(); 4146 } 4147 4148 if (mAdded && !mFirst) { 4149 destroyHardwareRenderer(); 4150 4151 if (mView != null) { 4152 int viewVisibility = mView.getVisibility(); 4153 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4154 if (mWindowAttributesChanged || viewVisibilityChanged) { 4155 // If layout params have been changed, first give them 4156 // to the window manager to make sure it has the correct 4157 // animation info. 4158 try { 4159 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4160 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4161 mWindowSession.finishDrawing(mWindow); 4162 } 4163 } catch (RemoteException e) { 4164 } 4165 } 4166 4167 mSurface.release(); 4168 } 4169 } 4170 4171 mAdded = false; 4172 } 4173 } 4174 4175 public void requestUpdateConfiguration(Configuration config) { 4176 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4177 mHandler.sendMessage(msg); 4178 } 4179 4180 public void loadSystemProperties() { 4181 boolean layout = SystemProperties.getBoolean( 4182 View.DEBUG_LAYOUT_PROPERTY, false); 4183 if (layout != mAttachInfo.mDebugLayout) { 4184 mAttachInfo.mDebugLayout = layout; 4185 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4186 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4187 } 4188 } 4189 } 4190 4191 private void destroyHardwareRenderer() { 4192 AttachInfo attachInfo = mAttachInfo; 4193 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4194 4195 if (hardwareRenderer != null) { 4196 if (mView != null) { 4197 hardwareRenderer.destroyHardwareResources(mView); 4198 } 4199 hardwareRenderer.destroy(true); 4200 hardwareRenderer.setRequested(false); 4201 4202 attachInfo.mHardwareRenderer = null; 4203 attachInfo.mHardwareAccelerated = false; 4204 } 4205 } 4206 4207 void dispatchImeFinishedEvent(int seq, boolean handled) { 4208 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4209 msg.arg1 = seq; 4210 msg.arg2 = handled ? 1 : 0; 4211 msg.setAsynchronous(true); 4212 mHandler.sendMessage(msg); 4213 } 4214 4215 public void dispatchFinishInputConnection(InputConnection connection) { 4216 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4217 mHandler.sendMessage(msg); 4218 } 4219 4220 public void dispatchResized(Rect frame, Rect contentInsets, 4221 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4222 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4223 + " contentInsets=" + contentInsets.toShortString() 4224 + " visibleInsets=" + visibleInsets.toShortString() 4225 + " reportDraw=" + reportDraw); 4226 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4227 if (mTranslator != null) { 4228 mTranslator.translateRectInScreenToAppWindow(frame); 4229 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4230 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4231 } 4232 SomeArgs args = SomeArgs.obtain(); 4233 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4234 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4235 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4236 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4237 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4238 msg.obj = args; 4239 mHandler.sendMessage(msg); 4240 } 4241 4242 public void dispatchMoved(int newX, int newY) { 4243 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4244 if (mTranslator != null) { 4245 PointF point = new PointF(newX, newY); 4246 mTranslator.translatePointInScreenToAppWindow(point); 4247 newX = (int) (point.x + 0.5); 4248 newY = (int) (point.y + 0.5); 4249 } 4250 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4251 mHandler.sendMessage(msg); 4252 } 4253 4254 /** 4255 * Represents a pending input event that is waiting in a queue. 4256 * 4257 * Input events are processed in serial order by the timestamp specified by 4258 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4259 * one input event to the application at a time and waits for the application 4260 * to finish handling it before delivering the next one. 4261 * 4262 * However, because the application or IME can synthesize and inject multiple 4263 * key events at a time without going through the input dispatcher, we end up 4264 * needing a queue on the application's side. 4265 */ 4266 private static final class QueuedInputEvent { 4267 public static final int FLAG_DELIVER_POST_IME = 1; 4268 4269 public QueuedInputEvent mNext; 4270 4271 public InputEvent mEvent; 4272 public InputEventReceiver mReceiver; 4273 public int mFlags; 4274 } 4275 4276 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4277 InputEventReceiver receiver, int flags) { 4278 QueuedInputEvent q = mQueuedInputEventPool; 4279 if (q != null) { 4280 mQueuedInputEventPoolSize -= 1; 4281 mQueuedInputEventPool = q.mNext; 4282 q.mNext = null; 4283 } else { 4284 q = new QueuedInputEvent(); 4285 } 4286 4287 q.mEvent = event; 4288 q.mReceiver = receiver; 4289 q.mFlags = flags; 4290 return q; 4291 } 4292 4293 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4294 q.mEvent = null; 4295 q.mReceiver = null; 4296 4297 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4298 mQueuedInputEventPoolSize += 1; 4299 q.mNext = mQueuedInputEventPool; 4300 mQueuedInputEventPool = q; 4301 } 4302 } 4303 4304 void enqueueInputEvent(InputEvent event) { 4305 enqueueInputEvent(event, null, 0, false); 4306 } 4307 4308 void enqueueInputEvent(InputEvent event, 4309 InputEventReceiver receiver, int flags, boolean processImmediately) { 4310 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4311 4312 // Always enqueue the input event in order, regardless of its time stamp. 4313 // We do this because the application or the IME may inject key events 4314 // in response to touch events and we want to ensure that the injected keys 4315 // are processed in the order they were received and we cannot trust that 4316 // the time stamp of injected events are monotonic. 4317 QueuedInputEvent last = mFirstPendingInputEvent; 4318 if (last == null) { 4319 mFirstPendingInputEvent = q; 4320 } else { 4321 while (last.mNext != null) { 4322 last = last.mNext; 4323 } 4324 last.mNext = q; 4325 } 4326 4327 if (processImmediately) { 4328 doProcessInputEvents(); 4329 } else { 4330 scheduleProcessInputEvents(); 4331 } 4332 } 4333 4334 private void scheduleProcessInputEvents() { 4335 if (!mProcessInputEventsScheduled) { 4336 mProcessInputEventsScheduled = true; 4337 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4338 msg.setAsynchronous(true); 4339 mHandler.sendMessage(msg); 4340 } 4341 } 4342 4343 void doProcessInputEvents() { 4344 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4345 QueuedInputEvent q = mFirstPendingInputEvent; 4346 mFirstPendingInputEvent = q.mNext; 4347 q.mNext = null; 4348 mCurrentInputEvent = q; 4349 deliverInputEvent(q); 4350 } 4351 4352 // We are done processing all input events that we can process right now 4353 // so we can clear the pending flag immediately. 4354 if (mProcessInputEventsScheduled) { 4355 mProcessInputEventsScheduled = false; 4356 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4357 } 4358 } 4359 4360 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4361 if (q != mCurrentInputEvent) { 4362 throw new IllegalStateException("finished input event out of order"); 4363 } 4364 4365 if (q.mReceiver != null) { 4366 q.mReceiver.finishInputEvent(q.mEvent, handled); 4367 } else { 4368 q.mEvent.recycleIfNeededAfterDispatch(); 4369 } 4370 4371 recycleQueuedInputEvent(q); 4372 4373 mCurrentInputEvent = null; 4374 if (mFirstPendingInputEvent != null) { 4375 scheduleProcessInputEvents(); 4376 } 4377 } 4378 4379 void scheduleConsumeBatchedInput() { 4380 if (!mConsumeBatchedInputScheduled) { 4381 mConsumeBatchedInputScheduled = true; 4382 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4383 mConsumedBatchedInputRunnable, null); 4384 } 4385 } 4386 4387 void unscheduleConsumeBatchedInput() { 4388 if (mConsumeBatchedInputScheduled) { 4389 mConsumeBatchedInputScheduled = false; 4390 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4391 mConsumedBatchedInputRunnable, null); 4392 } 4393 } 4394 4395 void doConsumeBatchedInput(long frameTimeNanos) { 4396 if (mConsumeBatchedInputScheduled) { 4397 mConsumeBatchedInputScheduled = false; 4398 if (mInputEventReceiver != null) { 4399 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4400 } 4401 doProcessInputEvents(); 4402 } 4403 } 4404 4405 final class TraversalRunnable implements Runnable { 4406 @Override 4407 public void run() { 4408 doTraversal(); 4409 } 4410 } 4411 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4412 4413 final class WindowInputEventReceiver extends InputEventReceiver { 4414 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4415 super(inputChannel, looper); 4416 } 4417 4418 @Override 4419 public void onInputEvent(InputEvent event) { 4420 enqueueInputEvent(event, this, 0, true); 4421 } 4422 4423 @Override 4424 public void onBatchedInputEventPending() { 4425 scheduleConsumeBatchedInput(); 4426 } 4427 4428 @Override 4429 public void dispose() { 4430 unscheduleConsumeBatchedInput(); 4431 super.dispose(); 4432 } 4433 } 4434 WindowInputEventReceiver mInputEventReceiver; 4435 4436 final class ConsumeBatchedInputRunnable implements Runnable { 4437 @Override 4438 public void run() { 4439 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4440 } 4441 } 4442 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4443 new ConsumeBatchedInputRunnable(); 4444 boolean mConsumeBatchedInputScheduled; 4445 4446 final class InvalidateOnAnimationRunnable implements Runnable { 4447 private boolean mPosted; 4448 private ArrayList<View> mViews = new ArrayList<View>(); 4449 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4450 new ArrayList<AttachInfo.InvalidateInfo>(); 4451 private View[] mTempViews; 4452 private AttachInfo.InvalidateInfo[] mTempViewRects; 4453 4454 public void addView(View view) { 4455 synchronized (this) { 4456 mViews.add(view); 4457 postIfNeededLocked(); 4458 } 4459 } 4460 4461 public void addViewRect(AttachInfo.InvalidateInfo info) { 4462 synchronized (this) { 4463 mViewRects.add(info); 4464 postIfNeededLocked(); 4465 } 4466 } 4467 4468 public void removeView(View view) { 4469 synchronized (this) { 4470 mViews.remove(view); 4471 4472 for (int i = mViewRects.size(); i-- > 0; ) { 4473 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4474 if (info.target == view) { 4475 mViewRects.remove(i); 4476 info.release(); 4477 } 4478 } 4479 4480 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4481 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4482 mPosted = false; 4483 } 4484 } 4485 } 4486 4487 @Override 4488 public void run() { 4489 final int viewCount; 4490 final int viewRectCount; 4491 synchronized (this) { 4492 mPosted = false; 4493 4494 viewCount = mViews.size(); 4495 if (viewCount != 0) { 4496 mTempViews = mViews.toArray(mTempViews != null 4497 ? mTempViews : new View[viewCount]); 4498 mViews.clear(); 4499 } 4500 4501 viewRectCount = mViewRects.size(); 4502 if (viewRectCount != 0) { 4503 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4504 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4505 mViewRects.clear(); 4506 } 4507 } 4508 4509 for (int i = 0; i < viewCount; i++) { 4510 mTempViews[i].invalidate(); 4511 mTempViews[i] = null; 4512 } 4513 4514 for (int i = 0; i < viewRectCount; i++) { 4515 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4516 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4517 info.release(); 4518 } 4519 } 4520 4521 private void postIfNeededLocked() { 4522 if (!mPosted) { 4523 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4524 mPosted = true; 4525 } 4526 } 4527 } 4528 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4529 new InvalidateOnAnimationRunnable(); 4530 4531 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4532 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4533 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4534 } 4535 4536 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4537 long delayMilliseconds) { 4538 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4539 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4540 } 4541 4542 public void dispatchInvalidateOnAnimation(View view) { 4543 mInvalidateOnAnimationRunnable.addView(view); 4544 } 4545 4546 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4547 mInvalidateOnAnimationRunnable.addViewRect(info); 4548 } 4549 4550 public void enqueueDisplayList(DisplayList displayList) { 4551 mDisplayLists.add(displayList); 4552 4553 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4554 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4555 mHandler.sendMessage(msg); 4556 } 4557 4558 public void dequeueDisplayList(DisplayList displayList) { 4559 if (mDisplayLists.remove(displayList)) { 4560 displayList.invalidate(); 4561 if (mDisplayLists.size() == 0) { 4562 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4563 } 4564 } 4565 } 4566 4567 public void cancelInvalidate(View view) { 4568 mHandler.removeMessages(MSG_INVALIDATE, view); 4569 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4570 // them to the pool 4571 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4572 mInvalidateOnAnimationRunnable.removeView(view); 4573 } 4574 4575 public void dispatchKey(KeyEvent event) { 4576 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4577 msg.setAsynchronous(true); 4578 mHandler.sendMessage(msg); 4579 } 4580 4581 public void dispatchKeyFromIme(KeyEvent event) { 4582 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4583 msg.setAsynchronous(true); 4584 mHandler.sendMessage(msg); 4585 } 4586 4587 public void dispatchUnhandledKey(KeyEvent event) { 4588 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4589 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4590 final int keyCode = event.getKeyCode(); 4591 final int metaState = event.getMetaState(); 4592 4593 // Check for fallback actions specified by the key character map. 4594 KeyCharacterMap.FallbackAction fallbackAction = 4595 kcm.getFallbackAction(keyCode, metaState); 4596 if (fallbackAction != null) { 4597 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4598 KeyEvent fallbackEvent = KeyEvent.obtain( 4599 event.getDownTime(), event.getEventTime(), 4600 event.getAction(), fallbackAction.keyCode, 4601 event.getRepeatCount(), fallbackAction.metaState, 4602 event.getDeviceId(), event.getScanCode(), 4603 flags, event.getSource(), null); 4604 fallbackAction.recycle(); 4605 4606 dispatchKey(fallbackEvent); 4607 } 4608 } 4609 } 4610 4611 public void dispatchAppVisibility(boolean visible) { 4612 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4613 msg.arg1 = visible ? 1 : 0; 4614 mHandler.sendMessage(msg); 4615 } 4616 4617 public void dispatchScreenStateChange(boolean on) { 4618 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4619 msg.arg1 = on ? 1 : 0; 4620 mHandler.sendMessage(msg); 4621 } 4622 4623 public void dispatchGetNewSurface() { 4624 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4625 mHandler.sendMessage(msg); 4626 } 4627 4628 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4629 Message msg = Message.obtain(); 4630 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4631 msg.arg1 = hasFocus ? 1 : 0; 4632 msg.arg2 = inTouchMode ? 1 : 0; 4633 mHandler.sendMessage(msg); 4634 } 4635 4636 public void dispatchCloseSystemDialogs(String reason) { 4637 Message msg = Message.obtain(); 4638 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4639 msg.obj = reason; 4640 mHandler.sendMessage(msg); 4641 } 4642 4643 public void dispatchDragEvent(DragEvent event) { 4644 final int what; 4645 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4646 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4647 mHandler.removeMessages(what); 4648 } else { 4649 what = MSG_DISPATCH_DRAG_EVENT; 4650 } 4651 Message msg = mHandler.obtainMessage(what, event); 4652 mHandler.sendMessage(msg); 4653 } 4654 4655 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4656 int localValue, int localChanges) { 4657 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4658 args.seq = seq; 4659 args.globalVisibility = globalVisibility; 4660 args.localValue = localValue; 4661 args.localChanges = localChanges; 4662 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4663 } 4664 4665 public void dispatchDoneAnimating() { 4666 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4667 } 4668 4669 public void dispatchCheckFocus() { 4670 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4671 // This will result in a call to checkFocus() below. 4672 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4673 } 4674 } 4675 4676 /** 4677 * Post a callback to send a 4678 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4679 * This event is send at most once every 4680 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4681 */ 4682 private void postSendWindowContentChangedCallback(View source) { 4683 if (mSendWindowContentChangedAccessibilityEvent == null) { 4684 mSendWindowContentChangedAccessibilityEvent = 4685 new SendWindowContentChangedAccessibilityEvent(); 4686 } 4687 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4688 if (oldSource == null) { 4689 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4690 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4691 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4692 } else { 4693 mSendWindowContentChangedAccessibilityEvent.mSource = 4694 getCommonPredecessor(oldSource, source); 4695 } 4696 } 4697 4698 /** 4699 * Remove a posted callback to send a 4700 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4701 */ 4702 private void removeSendWindowContentChangedCallback() { 4703 if (mSendWindowContentChangedAccessibilityEvent != null) { 4704 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4705 } 4706 } 4707 4708 public boolean showContextMenuForChild(View originalView) { 4709 return false; 4710 } 4711 4712 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4713 return null; 4714 } 4715 4716 public void createContextMenu(ContextMenu menu) { 4717 } 4718 4719 public void childDrawableStateChanged(View child) { 4720 } 4721 4722 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4723 if (mView == null) { 4724 return false; 4725 } 4726 // Intercept accessibility focus events fired by virtual nodes to keep 4727 // track of accessibility focus position in such nodes. 4728 final int eventType = event.getEventType(); 4729 switch (eventType) { 4730 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4731 final long sourceNodeId = event.getSourceNodeId(); 4732 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4733 sourceNodeId); 4734 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4735 if (source != null) { 4736 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4737 if (provider != null) { 4738 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4739 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4740 setAccessibilityFocus(source, node); 4741 } 4742 } 4743 } break; 4744 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4745 final long sourceNodeId = event.getSourceNodeId(); 4746 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4747 sourceNodeId); 4748 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4749 if (source != null) { 4750 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4751 if (provider != null) { 4752 setAccessibilityFocus(null, null); 4753 } 4754 } 4755 } break; 4756 } 4757 mAccessibilityManager.sendAccessibilityEvent(event); 4758 return true; 4759 } 4760 4761 @Override 4762 public void childAccessibilityStateChanged(View child) { 4763 postSendWindowContentChangedCallback(child); 4764 } 4765 4766 private View getCommonPredecessor(View first, View second) { 4767 if (mAttachInfo != null) { 4768 if (mTempHashSet == null) { 4769 mTempHashSet = new HashSet<View>(); 4770 } 4771 HashSet<View> seen = mTempHashSet; 4772 seen.clear(); 4773 View firstCurrent = first; 4774 while (firstCurrent != null) { 4775 seen.add(firstCurrent); 4776 ViewParent firstCurrentParent = firstCurrent.mParent; 4777 if (firstCurrentParent instanceof View) { 4778 firstCurrent = (View) firstCurrentParent; 4779 } else { 4780 firstCurrent = null; 4781 } 4782 } 4783 View secondCurrent = second; 4784 while (secondCurrent != null) { 4785 if (seen.contains(secondCurrent)) { 4786 seen.clear(); 4787 return secondCurrent; 4788 } 4789 ViewParent secondCurrentParent = secondCurrent.mParent; 4790 if (secondCurrentParent instanceof View) { 4791 secondCurrent = (View) secondCurrentParent; 4792 } else { 4793 secondCurrent = null; 4794 } 4795 } 4796 seen.clear(); 4797 } 4798 return null; 4799 } 4800 4801 void checkThread() { 4802 if (mThread != Thread.currentThread()) { 4803 throw new CalledFromWrongThreadException( 4804 "Only the original thread that created a view hierarchy can touch its views."); 4805 } 4806 } 4807 4808 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4809 // ViewAncestor never intercepts touch event, so this can be a no-op 4810 } 4811 4812 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4813 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4814 if (rectangle != null) { 4815 mTempRect.set(rectangle); 4816 mTempRect.offset(0, -mCurScrollY); 4817 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4818 try { 4819 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4820 } catch (RemoteException re) { 4821 /* ignore */ 4822 } 4823 } 4824 return scrolled; 4825 } 4826 4827 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4828 // Do nothing. 4829 } 4830 4831 class TakenSurfaceHolder extends BaseSurfaceHolder { 4832 @Override 4833 public boolean onAllowLockCanvas() { 4834 return mDrawingAllowed; 4835 } 4836 4837 @Override 4838 public void onRelayoutContainer() { 4839 // Not currently interesting -- from changing between fixed and layout size. 4840 } 4841 4842 public void setFormat(int format) { 4843 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4844 } 4845 4846 public void setType(int type) { 4847 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4848 } 4849 4850 @Override 4851 public void onUpdateSurface() { 4852 // We take care of format and type changes on our own. 4853 throw new IllegalStateException("Shouldn't be here"); 4854 } 4855 4856 public boolean isCreating() { 4857 return mIsCreating; 4858 } 4859 4860 @Override 4861 public void setFixedSize(int width, int height) { 4862 throw new UnsupportedOperationException( 4863 "Currently only support sizing from layout"); 4864 } 4865 4866 public void setKeepScreenOn(boolean screenOn) { 4867 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4868 } 4869 } 4870 4871 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4872 private WeakReference<ViewRootImpl> mViewAncestor; 4873 4874 public InputMethodCallback(ViewRootImpl viewAncestor) { 4875 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4876 } 4877 4878 @Override 4879 public void finishedEvent(int seq, boolean handled) { 4880 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4881 if (viewAncestor != null) { 4882 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4883 } 4884 } 4885 } 4886 4887 static class W extends IWindow.Stub { 4888 private final WeakReference<ViewRootImpl> mViewAncestor; 4889 private final IWindowSession mWindowSession; 4890 4891 W(ViewRootImpl viewAncestor) { 4892 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4893 mWindowSession = viewAncestor.mWindowSession; 4894 } 4895 4896 public void resized(Rect frame, Rect contentInsets, 4897 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4898 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4899 if (viewAncestor != null) { 4900 viewAncestor.dispatchResized(frame, contentInsets, 4901 visibleInsets, reportDraw, newConfig); 4902 } 4903 } 4904 4905 @Override 4906 public void moved(int newX, int newY) { 4907 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4908 if (viewAncestor != null) { 4909 viewAncestor.dispatchMoved(newX, newY); 4910 } 4911 } 4912 4913 public void dispatchAppVisibility(boolean visible) { 4914 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4915 if (viewAncestor != null) { 4916 viewAncestor.dispatchAppVisibility(visible); 4917 } 4918 } 4919 4920 public void dispatchScreenState(boolean on) { 4921 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4922 if (viewAncestor != null) { 4923 viewAncestor.dispatchScreenStateChange(on); 4924 } 4925 } 4926 4927 public void dispatchGetNewSurface() { 4928 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4929 if (viewAncestor != null) { 4930 viewAncestor.dispatchGetNewSurface(); 4931 } 4932 } 4933 4934 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4935 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4936 if (viewAncestor != null) { 4937 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4938 } 4939 } 4940 4941 private static int checkCallingPermission(String permission) { 4942 try { 4943 return ActivityManagerNative.getDefault().checkPermission( 4944 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4945 } catch (RemoteException e) { 4946 return PackageManager.PERMISSION_DENIED; 4947 } 4948 } 4949 4950 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4951 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4952 if (viewAncestor != null) { 4953 final View view = viewAncestor.mView; 4954 if (view != null) { 4955 if (checkCallingPermission(Manifest.permission.DUMP) != 4956 PackageManager.PERMISSION_GRANTED) { 4957 throw new SecurityException("Insufficient permissions to invoke" 4958 + " executeCommand() from pid=" + Binder.getCallingPid() 4959 + ", uid=" + Binder.getCallingUid()); 4960 } 4961 4962 OutputStream clientStream = null; 4963 try { 4964 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4965 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4966 } catch (IOException e) { 4967 e.printStackTrace(); 4968 } finally { 4969 if (clientStream != null) { 4970 try { 4971 clientStream.close(); 4972 } catch (IOException e) { 4973 e.printStackTrace(); 4974 } 4975 } 4976 } 4977 } 4978 } 4979 } 4980 4981 public void closeSystemDialogs(String reason) { 4982 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4983 if (viewAncestor != null) { 4984 viewAncestor.dispatchCloseSystemDialogs(reason); 4985 } 4986 } 4987 4988 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4989 boolean sync) { 4990 if (sync) { 4991 try { 4992 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4993 } catch (RemoteException e) { 4994 } 4995 } 4996 } 4997 4998 public void dispatchWallpaperCommand(String action, int x, int y, 4999 int z, Bundle extras, boolean sync) { 5000 if (sync) { 5001 try { 5002 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5003 } catch (RemoteException e) { 5004 } 5005 } 5006 } 5007 5008 /* Drag/drop */ 5009 public void dispatchDragEvent(DragEvent event) { 5010 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5011 if (viewAncestor != null) { 5012 viewAncestor.dispatchDragEvent(event); 5013 } 5014 } 5015 5016 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5017 int localValue, int localChanges) { 5018 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5019 if (viewAncestor != null) { 5020 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5021 localValue, localChanges); 5022 } 5023 } 5024 5025 public void doneAnimating() { 5026 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5027 if (viewAncestor != null) { 5028 viewAncestor.dispatchDoneAnimating(); 5029 } 5030 } 5031 } 5032 5033 /** 5034 * Maintains state information for a single trackball axis, generating 5035 * discrete (DPAD) movements based on raw trackball motion. 5036 */ 5037 static final class TrackballAxis { 5038 /** 5039 * The maximum amount of acceleration we will apply. 5040 */ 5041 static final float MAX_ACCELERATION = 20; 5042 5043 /** 5044 * The maximum amount of time (in milliseconds) between events in order 5045 * for us to consider the user to be doing fast trackball movements, 5046 * and thus apply an acceleration. 5047 */ 5048 static final long FAST_MOVE_TIME = 150; 5049 5050 /** 5051 * Scaling factor to the time (in milliseconds) between events to how 5052 * much to multiple/divide the current acceleration. When movement 5053 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5054 * FAST_MOVE_TIME it divides it. 5055 */ 5056 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5057 5058 float position; 5059 float absPosition; 5060 float acceleration = 1; 5061 long lastMoveTime = 0; 5062 int step; 5063 int dir; 5064 int nonAccelMovement; 5065 5066 void reset(int _step) { 5067 position = 0; 5068 acceleration = 1; 5069 lastMoveTime = 0; 5070 step = _step; 5071 dir = 0; 5072 } 5073 5074 /** 5075 * Add trackball movement into the state. If the direction of movement 5076 * has been reversed, the state is reset before adding the 5077 * movement (so that you don't have to compensate for any previously 5078 * collected movement before see the result of the movement in the 5079 * new direction). 5080 * 5081 * @return Returns the absolute value of the amount of movement 5082 * collected so far. 5083 */ 5084 float collect(float off, long time, String axis) { 5085 long normTime; 5086 if (off > 0) { 5087 normTime = (long)(off * FAST_MOVE_TIME); 5088 if (dir < 0) { 5089 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5090 position = 0; 5091 step = 0; 5092 acceleration = 1; 5093 lastMoveTime = 0; 5094 } 5095 dir = 1; 5096 } else if (off < 0) { 5097 normTime = (long)((-off) * FAST_MOVE_TIME); 5098 if (dir > 0) { 5099 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5100 position = 0; 5101 step = 0; 5102 acceleration = 1; 5103 lastMoveTime = 0; 5104 } 5105 dir = -1; 5106 } else { 5107 normTime = 0; 5108 } 5109 5110 // The number of milliseconds between each movement that is 5111 // considered "normal" and will not result in any acceleration 5112 // or deceleration, scaled by the offset we have here. 5113 if (normTime > 0) { 5114 long delta = time - lastMoveTime; 5115 lastMoveTime = time; 5116 float acc = acceleration; 5117 if (delta < normTime) { 5118 // The user is scrolling rapidly, so increase acceleration. 5119 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5120 if (scale > 1) acc *= scale; 5121 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5122 + off + " normTime=" + normTime + " delta=" + delta 5123 + " scale=" + scale + " acc=" + acc); 5124 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5125 } else { 5126 // The user is scrolling slowly, so decrease acceleration. 5127 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5128 if (scale > 1) acc /= scale; 5129 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5130 + off + " normTime=" + normTime + " delta=" + delta 5131 + " scale=" + scale + " acc=" + acc); 5132 acceleration = acc > 1 ? acc : 1; 5133 } 5134 } 5135 position += off; 5136 return (absPosition = Math.abs(position)); 5137 } 5138 5139 /** 5140 * Generate the number of discrete movement events appropriate for 5141 * the currently collected trackball movement. 5142 * 5143 * @param precision The minimum movement required to generate the 5144 * first discrete movement. 5145 * 5146 * @return Returns the number of discrete movements, either positive 5147 * or negative, or 0 if there is not enough trackball movement yet 5148 * for a discrete movement. 5149 */ 5150 int generate(float precision) { 5151 int movement = 0; 5152 nonAccelMovement = 0; 5153 do { 5154 final int dir = position >= 0 ? 1 : -1; 5155 switch (step) { 5156 // If we are going to execute the first step, then we want 5157 // to do this as soon as possible instead of waiting for 5158 // a full movement, in order to make things look responsive. 5159 case 0: 5160 if (absPosition < precision) { 5161 return movement; 5162 } 5163 movement += dir; 5164 nonAccelMovement += dir; 5165 step = 1; 5166 break; 5167 // If we have generated the first movement, then we need 5168 // to wait for the second complete trackball motion before 5169 // generating the second discrete movement. 5170 case 1: 5171 if (absPosition < 2) { 5172 return movement; 5173 } 5174 movement += dir; 5175 nonAccelMovement += dir; 5176 position += dir > 0 ? -2 : 2; 5177 absPosition = Math.abs(position); 5178 step = 2; 5179 break; 5180 // After the first two, we generate discrete movements 5181 // consistently with the trackball, applying an acceleration 5182 // if the trackball is moving quickly. This is a simple 5183 // acceleration on top of what we already compute based 5184 // on how quickly the wheel is being turned, to apply 5185 // a longer increasing acceleration to continuous movement 5186 // in one direction. 5187 default: 5188 if (absPosition < 1) { 5189 return movement; 5190 } 5191 movement += dir; 5192 position += dir >= 0 ? -1 : 1; 5193 absPosition = Math.abs(position); 5194 float acc = acceleration; 5195 acc *= 1.1f; 5196 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5197 break; 5198 } 5199 } while (true); 5200 } 5201 } 5202 5203 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5204 public CalledFromWrongThreadException(String msg) { 5205 super(msg); 5206 } 5207 } 5208 5209 private SurfaceHolder mHolder = new SurfaceHolder() { 5210 // we only need a SurfaceHolder for opengl. it would be nice 5211 // to implement everything else though, especially the callback 5212 // support (opengl doesn't make use of it right now, but eventually 5213 // will). 5214 public Surface getSurface() { 5215 return mSurface; 5216 } 5217 5218 public boolean isCreating() { 5219 return false; 5220 } 5221 5222 public void addCallback(Callback callback) { 5223 } 5224 5225 public void removeCallback(Callback callback) { 5226 } 5227 5228 public void setFixedSize(int width, int height) { 5229 } 5230 5231 public void setSizeFromLayout() { 5232 } 5233 5234 public void setFormat(int format) { 5235 } 5236 5237 public void setType(int type) { 5238 } 5239 5240 public void setKeepScreenOn(boolean screenOn) { 5241 } 5242 5243 public Canvas lockCanvas() { 5244 return null; 5245 } 5246 5247 public Canvas lockCanvas(Rect dirty) { 5248 return null; 5249 } 5250 5251 public void unlockCanvasAndPost(Canvas canvas) { 5252 } 5253 public Rect getSurfaceFrame() { 5254 return null; 5255 } 5256 }; 5257 5258 static RunQueue getRunQueue() { 5259 RunQueue rq = sRunQueues.get(); 5260 if (rq != null) { 5261 return rq; 5262 } 5263 rq = new RunQueue(); 5264 sRunQueues.set(rq); 5265 return rq; 5266 } 5267 5268 /** 5269 * The run queue is used to enqueue pending work from Views when no Handler is 5270 * attached. The work is executed during the next call to performTraversals on 5271 * the thread. 5272 * @hide 5273 */ 5274 static final class RunQueue { 5275 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5276 5277 void post(Runnable action) { 5278 postDelayed(action, 0); 5279 } 5280 5281 void postDelayed(Runnable action, long delayMillis) { 5282 HandlerAction handlerAction = new HandlerAction(); 5283 handlerAction.action = action; 5284 handlerAction.delay = delayMillis; 5285 5286 synchronized (mActions) { 5287 mActions.add(handlerAction); 5288 } 5289 } 5290 5291 void removeCallbacks(Runnable action) { 5292 final HandlerAction handlerAction = new HandlerAction(); 5293 handlerAction.action = action; 5294 5295 synchronized (mActions) { 5296 final ArrayList<HandlerAction> actions = mActions; 5297 5298 while (actions.remove(handlerAction)) { 5299 // Keep going 5300 } 5301 } 5302 } 5303 5304 void executeActions(Handler handler) { 5305 synchronized (mActions) { 5306 final ArrayList<HandlerAction> actions = mActions; 5307 final int count = actions.size(); 5308 5309 for (int i = 0; i < count; i++) { 5310 final HandlerAction handlerAction = actions.get(i); 5311 handler.postDelayed(handlerAction.action, handlerAction.delay); 5312 } 5313 5314 actions.clear(); 5315 } 5316 } 5317 5318 private static class HandlerAction { 5319 Runnable action; 5320 long delay; 5321 5322 @Override 5323 public boolean equals(Object o) { 5324 if (this == o) return true; 5325 if (o == null || getClass() != o.getClass()) return false; 5326 5327 HandlerAction that = (HandlerAction) o; 5328 return !(action != null ? !action.equals(that.action) : that.action != null); 5329 5330 } 5331 5332 @Override 5333 public int hashCode() { 5334 int result = action != null ? action.hashCode() : 0; 5335 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5336 return result; 5337 } 5338 } 5339 } 5340 5341 /** 5342 * Class for managing the accessibility interaction connection 5343 * based on the global accessibility state. 5344 */ 5345 final class AccessibilityInteractionConnectionManager 5346 implements AccessibilityStateChangeListener { 5347 public void onAccessibilityStateChanged(boolean enabled) { 5348 if (enabled) { 5349 ensureConnection(); 5350 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5351 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5352 View focusedView = mView.findFocus(); 5353 if (focusedView != null && focusedView != mView) { 5354 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5355 } 5356 } 5357 } else { 5358 ensureNoConnection(); 5359 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5360 } 5361 } 5362 5363 public void ensureConnection() { 5364 if (mAttachInfo != null) { 5365 final boolean registered = 5366 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5367 if (!registered) { 5368 mAttachInfo.mAccessibilityWindowId = 5369 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5370 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5371 } 5372 } 5373 } 5374 5375 public void ensureNoConnection() { 5376 final boolean registered = 5377 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5378 if (registered) { 5379 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5380 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5381 } 5382 } 5383 } 5384 5385 /** 5386 * This class is an interface this ViewAncestor provides to the 5387 * AccessibilityManagerService to the latter can interact with 5388 * the view hierarchy in this ViewAncestor. 5389 */ 5390 static final class AccessibilityInteractionConnection 5391 extends IAccessibilityInteractionConnection.Stub { 5392 private final WeakReference<ViewRootImpl> mViewRootImpl; 5393 5394 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5395 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5396 } 5397 5398 @Override 5399 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5400 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5401 int interrogatingPid, long interrogatingTid) { 5402 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5403 if (viewRootImpl != null && viewRootImpl.mView != null) { 5404 viewRootImpl.getAccessibilityInteractionController() 5405 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5406 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5407 } else { 5408 // We cannot make the call and notify the caller so it does not wait. 5409 try { 5410 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5411 } catch (RemoteException re) { 5412 /* best effort - ignore */ 5413 } 5414 } 5415 } 5416 5417 @Override 5418 public void performAccessibilityAction(long accessibilityNodeId, int action, 5419 Bundle arguments, int interactionId, 5420 IAccessibilityInteractionConnectionCallback callback, int flags, 5421 int interogatingPid, long interrogatingTid) { 5422 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5423 if (viewRootImpl != null && viewRootImpl.mView != null) { 5424 viewRootImpl.getAccessibilityInteractionController() 5425 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5426 interactionId, callback, flags, interogatingPid, interrogatingTid); 5427 } else { 5428 // We cannot make the call and notify the caller so it does not wait. 5429 try { 5430 callback.setPerformAccessibilityActionResult(false, interactionId); 5431 } catch (RemoteException re) { 5432 /* best effort - ignore */ 5433 } 5434 } 5435 } 5436 5437 @Override 5438 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5439 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5440 int interrogatingPid, long interrogatingTid) { 5441 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5442 if (viewRootImpl != null && viewRootImpl.mView != null) { 5443 viewRootImpl.getAccessibilityInteractionController() 5444 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5445 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5446 } else { 5447 // We cannot make the call and notify the caller so it does not wait. 5448 try { 5449 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5450 } catch (RemoteException re) { 5451 /* best effort - ignore */ 5452 } 5453 } 5454 } 5455 5456 @Override 5457 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5458 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5459 int interrogatingPid, long interrogatingTid) { 5460 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5461 if (viewRootImpl != null && viewRootImpl.mView != null) { 5462 viewRootImpl.getAccessibilityInteractionController() 5463 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5464 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5465 } else { 5466 // We cannot make the call and notify the caller so it does not wait. 5467 try { 5468 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5469 } catch (RemoteException re) { 5470 /* best effort - ignore */ 5471 } 5472 } 5473 } 5474 5475 @Override 5476 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5477 IAccessibilityInteractionConnectionCallback callback, int flags, 5478 int interrogatingPid, long interrogatingTid) { 5479 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5480 if (viewRootImpl != null && viewRootImpl.mView != null) { 5481 viewRootImpl.getAccessibilityInteractionController() 5482 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5483 flags, interrogatingPid, interrogatingTid); 5484 } else { 5485 // We cannot make the call and notify the caller so it does not wait. 5486 try { 5487 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5488 } catch (RemoteException re) { 5489 /* best effort - ignore */ 5490 } 5491 } 5492 } 5493 5494 @Override 5495 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5496 IAccessibilityInteractionConnectionCallback callback, int flags, 5497 int interrogatingPid, long interrogatingTid) { 5498 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5499 if (viewRootImpl != null && viewRootImpl.mView != null) { 5500 viewRootImpl.getAccessibilityInteractionController() 5501 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5502 callback, flags, interrogatingPid, interrogatingTid); 5503 } else { 5504 // We cannot make the call and notify the caller so it does not wait. 5505 try { 5506 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5507 } catch (RemoteException re) { 5508 /* best effort - ignore */ 5509 } 5510 } 5511 } 5512 } 5513 5514 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5515 public View mSource; 5516 5517 public void run() { 5518 if (mSource != null) { 5519 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5520 mSource.resetAccessibilityStateChanged(); 5521 mSource = null; 5522 } 5523 } 5524 } 5525} 5526