ViewRootImpl.java revision 06e7a030c029294a4c03c87652cfc161f8f29b3a
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.os.UserHandle; 56import android.util.AndroidRuntimeException; 57import android.util.DisplayMetrics; 58import android.util.Log; 59import android.util.Slog; 60import android.util.TypedValue; 61import android.view.View.AttachInfo; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityManager; 65import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 66import android.view.accessibility.AccessibilityNodeInfo; 67import android.view.accessibility.AccessibilityNodeProvider; 68import android.view.accessibility.IAccessibilityInteractionConnection; 69import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 70import android.view.animation.AccelerateDecelerateInterpolator; 71import android.view.animation.Interpolator; 72import android.view.inputmethod.InputConnection; 73import android.view.inputmethod.InputMethodManager; 74import android.widget.Scroller; 75 76import com.android.internal.R; 77import com.android.internal.os.SomeArgs; 78import com.android.internal.policy.PolicyManager; 79import com.android.internal.view.BaseSurfaceHolder; 80import com.android.internal.view.RootViewSurfaceTaker; 81 82import java.io.IOException; 83import java.io.OutputStream; 84import java.lang.ref.WeakReference; 85import java.util.ArrayList; 86import java.util.HashSet; 87 88/** 89 * The top of a view hierarchy, implementing the needed protocol between View 90 * and the WindowManager. This is for the most part an internal implementation 91 * detail of {@link WindowManagerGlobal}. 92 * 93 * {@hide} 94 */ 95@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 96public final class ViewRootImpl implements ViewParent, 97 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 98 private static final String TAG = "ViewRootImpl"; 99 private static final boolean DBG = false; 100 private static final boolean LOCAL_LOGV = false; 101 /** @noinspection PointlessBooleanExpression*/ 102 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 103 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 104 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 105 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 106 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 107 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 108 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 109 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 110 private static final boolean DEBUG_FPS = false; 111 112 private static final boolean USE_RENDER_THREAD = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 130 131 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 132 static boolean sFirstDrawComplete = false; 133 134 static final ArrayList<ComponentCallbacks> sConfigCallbacks 135 = new ArrayList<ComponentCallbacks>(); 136 137 private static boolean sUseRenderThread = false; 138 private static boolean sRenderThreadQueried = false; 139 private static final Object[] sRenderThreadQueryLock = new Object[0]; 140 141 final IWindowSession mWindowSession; 142 final Display mDisplay; 143 144 long mLastTrackballTime = 0; 145 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 146 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 147 148 int mLastJoystickXDirection; 149 int mLastJoystickYDirection; 150 int mLastJoystickXKeyCode; 151 int mLastJoystickYKeyCode; 152 153 final int[] mTmpLocation = new int[2]; 154 155 final TypedValue mTmpValue = new TypedValue(); 156 157 final InputMethodCallback mInputMethodCallback; 158 final Thread mThread; 159 160 final WindowLeaked mLocation; 161 162 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 163 164 final W mWindow; 165 166 final int mTargetSdkVersion; 167 168 int mSeq; 169 170 View mView; 171 View mFocusedView; 172 View mRealFocusedView; // this is not set to null in touch mode 173 View mOldFocusedView; 174 175 View mAccessibilityFocusedHost; 176 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 177 178 int mViewVisibility; 179 boolean mAppVisible = true; 180 int mOrigWindowType = -1; 181 182 // Set to true if the owner of this window is in the stopped state, 183 // so the window should no longer be active. 184 boolean mStopped = false; 185 186 boolean mLastInCompatMode = false; 187 188 SurfaceHolder.Callback2 mSurfaceHolderCallback; 189 BaseSurfaceHolder mSurfaceHolder; 190 boolean mIsCreating; 191 boolean mDrawingAllowed; 192 193 final Region mTransparentRegion; 194 final Region mPreviousTransparentRegion; 195 196 int mWidth; 197 int mHeight; 198 Rect mDirty; 199 final Rect mCurrentDirty = new Rect(); 200 final Rect mPreviousDirty = new Rect(); 201 boolean mIsAnimating; 202 203 CompatibilityInfo.Translator mTranslator; 204 205 final View.AttachInfo mAttachInfo; 206 InputChannel mInputChannel; 207 InputQueue.Callback mInputQueueCallback; 208 InputQueue mInputQueue; 209 FallbackEventHandler mFallbackEventHandler; 210 Choreographer mChoreographer; 211 212 final Rect mTempRect; // used in the transaction to not thrash the heap. 213 final Rect mVisRect; // used to retrieve visible rect of focused view. 214 215 boolean mTraversalScheduled; 216 int mTraversalBarrier; 217 boolean mWillDrawSoon; 218 /** Set to true while in performTraversals for detecting when die(true) is called from internal 219 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 220 boolean mIsInTraversal; 221 boolean mFitSystemWindowsRequested; 222 boolean mLayoutRequested; 223 boolean mFirst; 224 boolean mReportNextDraw; 225 boolean mFullRedrawNeeded; 226 boolean mNewSurfaceNeeded; 227 boolean mHasHadWindowFocus; 228 boolean mLastWasImTarget; 229 boolean mWindowsAnimating; 230 boolean mIsDrawing; 231 int mLastSystemUiVisibility; 232 int mClientWindowLayoutFlags; 233 234 // Pool of queued input events. 235 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 236 private QueuedInputEvent mQueuedInputEventPool; 237 private int mQueuedInputEventPoolSize; 238 239 // Input event queue. 240 QueuedInputEvent mFirstPendingInputEvent; 241 QueuedInputEvent mCurrentInputEvent; 242 boolean mProcessInputEventsScheduled; 243 244 boolean mWindowAttributesChanged = false; 245 int mWindowAttributesChangesFlag = 0; 246 247 // These can be accessed by any thread, must be protected with a lock. 248 // Surface can never be reassigned or cleared (use Surface.clear()). 249 private final Surface mSurface = new Surface(); 250 251 boolean mAdded; 252 boolean mAddedTouchMode; 253 254 final CompatibilityInfoHolder mCompatibilityInfo; 255 256 // These are accessed by multiple threads. 257 final Rect mWinFrame; // frame given by window manager. 258 259 final Rect mPendingVisibleInsets = new Rect(); 260 final Rect mPendingContentInsets = new Rect(); 261 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 262 = new ViewTreeObserver.InternalInsetsInfo(); 263 264 final Rect mFitSystemWindowsInsets = new Rect(); 265 266 final Configuration mLastConfiguration = new Configuration(); 267 final Configuration mPendingConfiguration = new Configuration(); 268 269 boolean mScrollMayChange; 270 int mSoftInputMode; 271 View mLastScrolledFocus; 272 int mScrollY; 273 int mCurScrollY; 274 Scroller mScroller; 275 HardwareLayer mResizeBuffer; 276 long mResizeBufferStartTime; 277 int mResizeBufferDuration; 278 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 279 private ArrayList<LayoutTransition> mPendingTransitions; 280 281 final ViewConfiguration mViewConfiguration; 282 283 /* Drag/drop */ 284 ClipDescription mDragDescription; 285 View mCurrentDragView; 286 volatile Object mLocalDragState; 287 final PointF mDragPoint = new PointF(); 288 final PointF mLastTouchPoint = new PointF(); 289 290 private boolean mProfileRendering; 291 private Thread mRenderProfiler; 292 private volatile boolean mRenderProfilingEnabled; 293 294 // Variables to track frames per second, enabled via DEBUG_FPS flag 295 private long mFpsStartTime = -1; 296 private long mFpsPrevTime = -1; 297 private int mFpsNumFrames; 298 299 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 300 301 /** 302 * see {@link #playSoundEffect(int)} 303 */ 304 AudioManager mAudioManager; 305 306 final AccessibilityManager mAccessibilityManager; 307 308 AccessibilityInteractionController mAccessibilityInteractionController; 309 310 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 311 312 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 313 314 HashSet<View> mTempHashSet; 315 316 private final int mDensity; 317 private final int mNoncompatDensity; 318 319 private boolean mInLayout = false; 320 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 321 boolean mHandlingLayoutInLayoutRequest = false; 322 323 324 /** 325 * Consistency verifier for debugging purposes. 326 */ 327 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 328 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 329 new InputEventConsistencyVerifier(this, 0) : null; 330 331 static final class SystemUiVisibilityInfo { 332 int seq; 333 int globalVisibility; 334 int localValue; 335 int localChanges; 336 } 337 338 public ViewRootImpl(Context context, Display display) { 339 super(); 340 341 if (MEASURE_LATENCY) { 342 if (lt == null) { 343 lt = new LatencyTimer(100, 1000); 344 } 345 } 346 347 // Initialize the statics when this class is first instantiated. This is 348 // done here instead of in the static block because Zygote does not 349 // allow the spawning of threads. 350 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 351 mDisplay = display; 352 353 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 354 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 355 356 mThread = Thread.currentThread(); 357 mLocation = new WindowLeaked(null); 358 mLocation.fillInStackTrace(); 359 mWidth = -1; 360 mHeight = -1; 361 mDirty = new Rect(); 362 mTempRect = new Rect(); 363 mVisRect = new Rect(); 364 mWinFrame = new Rect(); 365 mWindow = new W(this); 366 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 367 mInputMethodCallback = new InputMethodCallback(this); 368 mViewVisibility = View.GONE; 369 mTransparentRegion = new Region(); 370 mPreviousTransparentRegion = new Region(); 371 mFirst = true; // true for the first time the view is added 372 mAdded = false; 373 mAccessibilityManager = AccessibilityManager.getInstance(context); 374 mAccessibilityInteractionConnectionManager = 375 new AccessibilityInteractionConnectionManager(); 376 mAccessibilityManager.addAccessibilityStateChangeListener( 377 mAccessibilityInteractionConnectionManager); 378 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 379 mViewConfiguration = ViewConfiguration.get(context); 380 mDensity = context.getResources().getDisplayMetrics().densityDpi; 381 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 382 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 383 mProfileRendering = Boolean.parseBoolean( 384 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 385 mChoreographer = Choreographer.getInstance(); 386 387 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 388 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 389 loadSystemProperties(); 390 } 391 392 /** 393 * @return True if the application requests the use of a separate render thread, 394 * false otherwise 395 */ 396 private static boolean isRenderThreadRequested(Context context) { 397 if (USE_RENDER_THREAD) { 398 synchronized (sRenderThreadQueryLock) { 399 if (!sRenderThreadQueried) { 400 final PackageManager packageManager = context.getPackageManager(); 401 final String packageName = context.getApplicationInfo().packageName; 402 try { 403 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 404 PackageManager.GET_META_DATA); 405 if (applicationInfo.metaData != null) { 406 sUseRenderThread = applicationInfo.metaData.getBoolean( 407 "android.graphics.renderThread", false); 408 } 409 } catch (PackageManager.NameNotFoundException e) { 410 } finally { 411 sRenderThreadQueried = true; 412 } 413 } 414 return sUseRenderThread; 415 } 416 } else { 417 return false; 418 } 419 } 420 421 public static void addFirstDrawHandler(Runnable callback) { 422 synchronized (sFirstDrawHandlers) { 423 if (!sFirstDrawComplete) { 424 sFirstDrawHandlers.add(callback); 425 } 426 } 427 } 428 429 public static void addConfigCallback(ComponentCallbacks callback) { 430 synchronized (sConfigCallbacks) { 431 sConfigCallbacks.add(callback); 432 } 433 } 434 435 // FIXME for perf testing only 436 private boolean mProfile = false; 437 438 /** 439 * Call this to profile the next traversal call. 440 * FIXME for perf testing only. Remove eventually 441 */ 442 public void profile() { 443 mProfile = true; 444 } 445 446 /** 447 * Indicates whether we are in touch mode. Calling this method triggers an IPC 448 * call and should be avoided whenever possible. 449 * 450 * @return True, if the device is in touch mode, false otherwise. 451 * 452 * @hide 453 */ 454 static boolean isInTouchMode() { 455 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 456 if (windowSession != null) { 457 try { 458 return windowSession.getInTouchMode(); 459 } catch (RemoteException e) { 460 } 461 } 462 return false; 463 } 464 465 /** 466 * We have one child 467 */ 468 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 469 synchronized (this) { 470 if (mView == null) { 471 mView = view; 472 mFallbackEventHandler.setView(view); 473 mWindowAttributes.copyFrom(attrs); 474 attrs = mWindowAttributes; 475 // Keep track of the actual window flags supplied by the client. 476 mClientWindowLayoutFlags = attrs.flags; 477 478 setAccessibilityFocus(null, null); 479 480 if (view instanceof RootViewSurfaceTaker) { 481 mSurfaceHolderCallback = 482 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 483 if (mSurfaceHolderCallback != null) { 484 mSurfaceHolder = new TakenSurfaceHolder(); 485 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 486 } 487 } 488 489 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 490 mTranslator = compatibilityInfo.getTranslator(); 491 492 // If the application owns the surface, don't enable hardware acceleration 493 if (mSurfaceHolder == null) { 494 enableHardwareAcceleration(mView.getContext(), attrs); 495 } 496 497 boolean restore = false; 498 if (mTranslator != null) { 499 mSurface.setCompatibilityTranslator(mTranslator); 500 restore = true; 501 attrs.backup(); 502 mTranslator.translateWindowLayout(attrs); 503 } 504 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 505 506 if (!compatibilityInfo.supportsScreen()) { 507 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 508 mLastInCompatMode = true; 509 } 510 511 mSoftInputMode = attrs.softInputMode; 512 mWindowAttributesChanged = true; 513 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 514 mAttachInfo.mRootView = view; 515 mAttachInfo.mScalingRequired = mTranslator != null; 516 mAttachInfo.mApplicationScale = 517 mTranslator == null ? 1.0f : mTranslator.applicationScale; 518 if (panelParentView != null) { 519 mAttachInfo.mPanelParentWindowToken 520 = panelParentView.getApplicationWindowToken(); 521 } 522 mAdded = true; 523 int res; /* = WindowManagerImpl.ADD_OKAY; */ 524 525 // Schedule the first layout -before- adding to the window 526 // manager, to make sure we do the relayout before receiving 527 // any other events from the system. 528 requestLayout(); 529 if ((mWindowAttributes.inputFeatures 530 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 531 mInputChannel = new InputChannel(); 532 } 533 try { 534 mOrigWindowType = mWindowAttributes.type; 535 mAttachInfo.mRecomputeGlobalAttributes = true; 536 collectViewAttributes(); 537 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 538 getHostVisibility(), mDisplay.getDisplayId(), 539 mAttachInfo.mContentInsets, mInputChannel); 540 } catch (RemoteException e) { 541 mAdded = false; 542 mView = null; 543 mAttachInfo.mRootView = null; 544 mInputChannel = null; 545 mFallbackEventHandler.setView(null); 546 unscheduleTraversals(); 547 setAccessibilityFocus(null, null); 548 throw new RuntimeException("Adding window failed", e); 549 } finally { 550 if (restore) { 551 attrs.restore(); 552 } 553 } 554 555 if (mTranslator != null) { 556 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 557 } 558 mPendingContentInsets.set(mAttachInfo.mContentInsets); 559 mPendingVisibleInsets.set(0, 0, 0, 0); 560 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 561 if (res < WindowManagerGlobal.ADD_OKAY) { 562 mView = null; 563 mAttachInfo.mRootView = null; 564 mAdded = false; 565 mFallbackEventHandler.setView(null); 566 unscheduleTraversals(); 567 setAccessibilityFocus(null, null); 568 switch (res) { 569 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 570 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 571 throw new WindowManager.BadTokenException( 572 "Unable to add window -- token " + attrs.token 573 + " is not valid; is your activity running?"); 574 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 575 throw new WindowManager.BadTokenException( 576 "Unable to add window -- token " + attrs.token 577 + " is not for an application"); 578 case WindowManagerGlobal.ADD_APP_EXITING: 579 throw new WindowManager.BadTokenException( 580 "Unable to add window -- app for token " + attrs.token 581 + " is exiting"); 582 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 583 throw new WindowManager.BadTokenException( 584 "Unable to add window -- window " + mWindow 585 + " has already been added"); 586 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 587 // Silently ignore -- we would have just removed it 588 // right away, anyway. 589 return; 590 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 591 throw new WindowManager.BadTokenException( 592 "Unable to add window " + mWindow + 593 " -- another window of this type already exists"); 594 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 595 throw new WindowManager.BadTokenException( 596 "Unable to add window " + mWindow + 597 " -- permission denied for this window type"); 598 } 599 throw new RuntimeException( 600 "Unable to add window -- unknown error code " + res); 601 } 602 603 if (view instanceof RootViewSurfaceTaker) { 604 mInputQueueCallback = 605 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 606 } 607 if (mInputChannel != null) { 608 if (mInputQueueCallback != null) { 609 mInputQueue = new InputQueue(mInputChannel); 610 mInputQueueCallback.onInputQueueCreated(mInputQueue); 611 } else { 612 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 613 Looper.myLooper()); 614 } 615 } 616 617 view.assignParent(this); 618 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 619 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 620 621 if (mAccessibilityManager.isEnabled()) { 622 mAccessibilityInteractionConnectionManager.ensureConnection(); 623 } 624 625 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 626 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 627 } 628 } 629 } 630 } 631 632 void destroyHardwareResources() { 633 if (mAttachInfo.mHardwareRenderer != null) { 634 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 635 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 636 } 637 mAttachInfo.mHardwareRenderer.destroy(false); 638 } 639 } 640 641 void terminateHardwareResources() { 642 if (mAttachInfo.mHardwareRenderer != null) { 643 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 644 mAttachInfo.mHardwareRenderer.destroy(false); 645 } 646 } 647 648 void destroyHardwareLayers() { 649 if (mThread != Thread.currentThread()) { 650 if (mAttachInfo.mHardwareRenderer != null && 651 mAttachInfo.mHardwareRenderer.isEnabled()) { 652 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 653 } 654 } else { 655 if (mAttachInfo.mHardwareRenderer != null && 656 mAttachInfo.mHardwareRenderer.isEnabled()) { 657 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 658 } 659 } 660 } 661 662 void pushHardwareLayerUpdate(HardwareLayer layer) { 663 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 664 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 665 } 666 } 667 668 public boolean attachFunctor(int functor) { 669 //noinspection SimplifiableIfStatement 670 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 671 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 672 } 673 return false; 674 } 675 676 public void detachFunctor(int functor) { 677 if (mAttachInfo.mHardwareRenderer != null) { 678 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 679 } 680 } 681 682 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 683 mAttachInfo.mHardwareAccelerated = false; 684 mAttachInfo.mHardwareAccelerationRequested = false; 685 686 // Don't enable hardware acceleration when the application is in compatibility mode 687 if (mTranslator != null) return; 688 689 // Try to enable hardware acceleration if requested 690 final boolean hardwareAccelerated = 691 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 692 693 if (hardwareAccelerated) { 694 if (!HardwareRenderer.isAvailable()) { 695 return; 696 } 697 698 // Persistent processes (including the system) should not do 699 // accelerated rendering on low-end devices. In that case, 700 // sRendererDisabled will be set. In addition, the system process 701 // itself should never do accelerated rendering. In that case, both 702 // sRendererDisabled and sSystemRendererDisabled are set. When 703 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 704 // can be used by code on the system process to escape that and enable 705 // HW accelerated drawing. (This is basically for the lock screen.) 706 707 final boolean fakeHwAccelerated = (attrs.privateFlags & 708 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 709 final boolean forceHwAccelerated = (attrs.privateFlags & 710 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 711 712 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 713 && forceHwAccelerated)) { 714 // Don't enable hardware acceleration when we're not on the main thread 715 if (!HardwareRenderer.sSystemRendererDisabled && 716 Looper.getMainLooper() != Looper.myLooper()) { 717 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 718 + "acceleration outside of the main thread, aborting"); 719 return; 720 } 721 722 final boolean renderThread = isRenderThreadRequested(context); 723 if (renderThread) { 724 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 725 } 726 727 if (mAttachInfo.mHardwareRenderer != null) { 728 mAttachInfo.mHardwareRenderer.destroy(true); 729 } 730 731 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 732 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 733 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 734 = mAttachInfo.mHardwareRenderer != null; 735 736 } else if (fakeHwAccelerated) { 737 // The window had wanted to use hardware acceleration, but this 738 // is not allowed in its process. By setting this flag, it can 739 // still render as if it was accelerated. This is basically for 740 // the preview windows the window manager shows for launching 741 // applications, so they will look more like the app being launched. 742 mAttachInfo.mHardwareAccelerationRequested = true; 743 } 744 } 745 } 746 747 public View getView() { 748 return mView; 749 } 750 751 final WindowLeaked getLocation() { 752 return mLocation; 753 } 754 755 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 756 synchronized (this) { 757 int oldSoftInputMode = mWindowAttributes.softInputMode; 758 // Keep track of the actual window flags supplied by the client. 759 mClientWindowLayoutFlags = attrs.flags; 760 // preserve compatible window flag if exists. 761 int compatibleWindowFlag = 762 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 763 // transfer over system UI visibility values as they carry current state. 764 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 765 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 766 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 767 mWindowAttributes.flags |= compatibleWindowFlag; 768 769 applyKeepScreenOnFlag(mWindowAttributes); 770 771 if (newView) { 772 mSoftInputMode = attrs.softInputMode; 773 requestLayout(); 774 } 775 // Don't lose the mode we last auto-computed. 776 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 777 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 778 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 779 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 780 | (oldSoftInputMode 781 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 782 } 783 mWindowAttributesChanged = true; 784 scheduleTraversals(); 785 } 786 } 787 788 void handleAppVisibility(boolean visible) { 789 if (mAppVisible != visible) { 790 mAppVisible = visible; 791 scheduleTraversals(); 792 } 793 } 794 795 void handleGetNewSurface() { 796 mNewSurfaceNeeded = true; 797 mFullRedrawNeeded = true; 798 scheduleTraversals(); 799 } 800 801 void handleScreenStateChange(boolean on) { 802 if (on != mAttachInfo.mScreenOn) { 803 mAttachInfo.mScreenOn = on; 804 if (mView != null) { 805 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 806 } 807 if (on) { 808 mFullRedrawNeeded = true; 809 scheduleTraversals(); 810 } 811 } 812 } 813 814 /** 815 * {@inheritDoc} 816 */ 817 public void requestFitSystemWindows() { 818 checkThread(); 819 mFitSystemWindowsRequested = true; 820 scheduleTraversals(); 821 } 822 823 /** 824 * {@inheritDoc} 825 */ 826 public void requestLayout() { 827 checkThread(); 828 mLayoutRequested = true; 829 scheduleTraversals(); 830 } 831 832 /** 833 * {@inheritDoc} 834 */ 835 public boolean isLayoutRequested() { 836 return mLayoutRequested; 837 } 838 839 void invalidate() { 840 mDirty.set(0, 0, mWidth, mHeight); 841 scheduleTraversals(); 842 } 843 844 void invalidateWorld(View view) { 845 view.invalidate(); 846 if (view instanceof ViewGroup) { 847 ViewGroup parent = (ViewGroup) view; 848 for (int i = 0; i < parent.getChildCount(); i++) { 849 invalidateWorld(parent.getChildAt(i)); 850 } 851 } 852 } 853 854 public void invalidateChild(View child, Rect dirty) { 855 invalidateChildInParent(null, dirty); 856 } 857 858 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 859 checkThread(); 860 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 861 862 if (dirty == null) { 863 invalidate(); 864 return null; 865 } else if (dirty.isEmpty()) { 866 return null; 867 } 868 869 if (mCurScrollY != 0 || mTranslator != null) { 870 mTempRect.set(dirty); 871 dirty = mTempRect; 872 if (mCurScrollY != 0) { 873 dirty.offset(0, -mCurScrollY); 874 } 875 if (mTranslator != null) { 876 mTranslator.translateRectInAppWindowToScreen(dirty); 877 } 878 if (mAttachInfo.mScalingRequired) { 879 dirty.inset(-1, -1); 880 } 881 } 882 883 final Rect localDirty = mDirty; 884 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 885 mAttachInfo.mSetIgnoreDirtyState = true; 886 mAttachInfo.mIgnoreDirtyState = true; 887 } 888 889 // Add the new dirty rect to the current one 890 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 891 // Intersect with the bounds of the window to skip 892 // updates that lie outside of the visible region 893 final float appScale = mAttachInfo.mApplicationScale; 894 localDirty.intersect(0, 0, 895 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 896 897 if (!mWillDrawSoon) { 898 scheduleTraversals(); 899 } 900 901 return null; 902 } 903 904 void setStopped(boolean stopped) { 905 if (mStopped != stopped) { 906 mStopped = stopped; 907 if (!stopped) { 908 scheduleTraversals(); 909 } 910 } 911 } 912 913 public ViewParent getParent() { 914 return null; 915 } 916 917 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 918 if (child != mView) { 919 throw new RuntimeException("child is not mine, honest!"); 920 } 921 // Note: don't apply scroll offset, because we want to know its 922 // visibility in the virtual canvas being given to the view hierarchy. 923 return r.intersect(0, 0, mWidth, mHeight); 924 } 925 926 public void bringChildToFront(View child) { 927 } 928 929 int getHostVisibility() { 930 return mAppVisible ? mView.getVisibility() : View.GONE; 931 } 932 933 void disposeResizeBuffer() { 934 if (mResizeBuffer != null) { 935 mResizeBuffer.destroy(); 936 mResizeBuffer = null; 937 } 938 } 939 940 /** 941 * Add LayoutTransition to the list of transitions to be started in the next traversal. 942 * This list will be cleared after the transitions on the list are start()'ed. These 943 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 944 * happens during the layout phase of traversal, which we want to complete before any of the 945 * animations are started (because those animations may side-effect properties that layout 946 * depends upon, like the bounding rectangles of the affected views). So we add the transition 947 * to the list and it is started just prior to starting the drawing phase of traversal. 948 * 949 * @param transition The LayoutTransition to be started on the next traversal. 950 * 951 * @hide 952 */ 953 public void requestTransitionStart(LayoutTransition transition) { 954 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 955 if (mPendingTransitions == null) { 956 mPendingTransitions = new ArrayList<LayoutTransition>(); 957 } 958 mPendingTransitions.add(transition); 959 } 960 } 961 962 void scheduleTraversals() { 963 if (!mTraversalScheduled) { 964 mTraversalScheduled = true; 965 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 966 mChoreographer.postCallback( 967 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 968 scheduleConsumeBatchedInput(); 969 } 970 } 971 972 void unscheduleTraversals() { 973 if (mTraversalScheduled) { 974 mTraversalScheduled = false; 975 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 976 mChoreographer.removeCallbacks( 977 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 978 } 979 } 980 981 void doTraversal() { 982 if (mTraversalScheduled) { 983 mTraversalScheduled = false; 984 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 985 986 if (mProfile) { 987 Debug.startMethodTracing("ViewAncestor"); 988 } 989 990 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 991 try { 992 performTraversals(); 993 } finally { 994 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 995 } 996 997 if (mProfile) { 998 Debug.stopMethodTracing(); 999 mProfile = false; 1000 } 1001 } 1002 } 1003 1004 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1005 // Update window's global keep screen on flag: if a view has requested 1006 // that the screen be kept on, then it is always set; otherwise, it is 1007 // set to whatever the client last requested for the global state. 1008 if (mAttachInfo.mKeepScreenOn) { 1009 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1010 } else { 1011 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1012 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1013 } 1014 } 1015 1016 private boolean collectViewAttributes() { 1017 final View.AttachInfo attachInfo = mAttachInfo; 1018 if (attachInfo.mRecomputeGlobalAttributes) { 1019 //Log.i(TAG, "Computing view hierarchy attributes!"); 1020 attachInfo.mRecomputeGlobalAttributes = false; 1021 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1022 attachInfo.mKeepScreenOn = false; 1023 attachInfo.mSystemUiVisibility = 0; 1024 attachInfo.mHasSystemUiListeners = false; 1025 mView.dispatchCollectViewAttributes(attachInfo, 0); 1026 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1027 WindowManager.LayoutParams params = mWindowAttributes; 1028 if (attachInfo.mKeepScreenOn != oldScreenOn 1029 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1030 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1031 applyKeepScreenOnFlag(params); 1032 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1033 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1034 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1035 return true; 1036 } 1037 } 1038 return false; 1039 } 1040 1041 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1042 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1043 int childWidthMeasureSpec; 1044 int childHeightMeasureSpec; 1045 boolean windowSizeMayChange = false; 1046 1047 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1048 "Measuring " + host + " in display " + desiredWindowWidth 1049 + "x" + desiredWindowHeight + "..."); 1050 1051 boolean goodMeasure = false; 1052 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1053 // On large screens, we don't want to allow dialogs to just 1054 // stretch to fill the entire width of the screen to display 1055 // one line of text. First try doing the layout at a smaller 1056 // size to see if it will fit. 1057 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1058 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1059 int baseSize = 0; 1060 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1061 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1062 } 1063 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1064 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1065 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1066 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1067 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1068 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1069 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1070 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1071 goodMeasure = true; 1072 } else { 1073 // Didn't fit in that size... try expanding a bit. 1074 baseSize = (baseSize+desiredWindowWidth)/2; 1075 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1076 + baseSize); 1077 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1078 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1079 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1080 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1081 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1082 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1083 goodMeasure = true; 1084 } 1085 } 1086 } 1087 } 1088 1089 if (!goodMeasure) { 1090 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1091 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1092 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1093 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1094 windowSizeMayChange = true; 1095 } 1096 } 1097 1098 if (DBG) { 1099 System.out.println("======================================"); 1100 System.out.println("performTraversals -- after measure"); 1101 host.debug(); 1102 } 1103 1104 return windowSizeMayChange; 1105 } 1106 1107 private void performTraversals() { 1108 // cache mView since it is used so much below... 1109 final View host = mView; 1110 1111 if (DBG) { 1112 System.out.println("======================================"); 1113 System.out.println("performTraversals"); 1114 host.debug(); 1115 } 1116 1117 if (host == null || !mAdded) 1118 return; 1119 1120 mIsInTraversal = true; 1121 mWillDrawSoon = true; 1122 boolean windowSizeMayChange = false; 1123 boolean newSurface = false; 1124 boolean surfaceChanged = false; 1125 WindowManager.LayoutParams lp = mWindowAttributes; 1126 1127 int desiredWindowWidth; 1128 int desiredWindowHeight; 1129 1130 final View.AttachInfo attachInfo = mAttachInfo; 1131 1132 final int viewVisibility = getHostVisibility(); 1133 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1134 || mNewSurfaceNeeded; 1135 1136 WindowManager.LayoutParams params = null; 1137 if (mWindowAttributesChanged) { 1138 mWindowAttributesChanged = false; 1139 surfaceChanged = true; 1140 params = lp; 1141 } 1142 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1143 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1144 params = lp; 1145 mFullRedrawNeeded = true; 1146 mLayoutRequested = true; 1147 if (mLastInCompatMode) { 1148 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1149 mLastInCompatMode = false; 1150 } else { 1151 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1152 mLastInCompatMode = true; 1153 } 1154 } 1155 1156 mWindowAttributesChangesFlag = 0; 1157 1158 Rect frame = mWinFrame; 1159 if (mFirst) { 1160 mFullRedrawNeeded = true; 1161 mLayoutRequested = true; 1162 1163 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1164 // NOTE -- system code, won't try to do compat mode. 1165 Point size = new Point(); 1166 mDisplay.getRealSize(size); 1167 desiredWindowWidth = size.x; 1168 desiredWindowHeight = size.y; 1169 } else { 1170 DisplayMetrics packageMetrics = 1171 mView.getContext().getResources().getDisplayMetrics(); 1172 desiredWindowWidth = packageMetrics.widthPixels; 1173 desiredWindowHeight = packageMetrics.heightPixels; 1174 } 1175 1176 // For the very first time, tell the view hierarchy that it 1177 // is attached to the window. Note that at this point the surface 1178 // object is not initialized to its backing store, but soon it 1179 // will be (assuming the window is visible). 1180 attachInfo.mSurface = mSurface; 1181 // We used to use the following condition to choose 32 bits drawing caches: 1182 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1183 // However, windows are now always 32 bits by default, so choose 32 bits 1184 attachInfo.mUse32BitDrawingCache = true; 1185 attachInfo.mHasWindowFocus = false; 1186 attachInfo.mWindowVisibility = viewVisibility; 1187 attachInfo.mRecomputeGlobalAttributes = false; 1188 viewVisibilityChanged = false; 1189 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1190 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1191 host.dispatchAttachedToWindow(attachInfo, 0); 1192 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1193 host.fitSystemWindows(mFitSystemWindowsInsets); 1194 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1195 1196 } else { 1197 desiredWindowWidth = frame.width(); 1198 desiredWindowHeight = frame.height(); 1199 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1200 if (DEBUG_ORIENTATION) Log.v(TAG, 1201 "View " + host + " resized to: " + frame); 1202 mFullRedrawNeeded = true; 1203 mLayoutRequested = true; 1204 windowSizeMayChange = true; 1205 } 1206 } 1207 1208 if (viewVisibilityChanged) { 1209 attachInfo.mWindowVisibility = viewVisibility; 1210 host.dispatchWindowVisibilityChanged(viewVisibility); 1211 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1212 destroyHardwareResources(); 1213 } 1214 if (viewVisibility == View.GONE) { 1215 // After making a window gone, we will count it as being 1216 // shown for the first time the next time it gets focus. 1217 mHasHadWindowFocus = false; 1218 } 1219 } 1220 1221 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1222 getRunQueue().executeActions(attachInfo.mHandler); 1223 1224 boolean insetsChanged = false; 1225 1226 boolean layoutRequested = mLayoutRequested && !mStopped; 1227 if (layoutRequested) { 1228 1229 final Resources res = mView.getContext().getResources(); 1230 1231 if (mFirst) { 1232 // make sure touch mode code executes by setting cached value 1233 // to opposite of the added touch mode. 1234 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1235 ensureTouchModeLocally(mAddedTouchMode); 1236 } else { 1237 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1238 insetsChanged = true; 1239 } 1240 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1241 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1242 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1243 + mAttachInfo.mVisibleInsets); 1244 } 1245 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1246 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1247 windowSizeMayChange = true; 1248 1249 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1250 // NOTE -- system code, won't try to do compat mode. 1251 Point size = new Point(); 1252 mDisplay.getRealSize(size); 1253 desiredWindowWidth = size.x; 1254 desiredWindowHeight = size.y; 1255 } else { 1256 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1257 desiredWindowWidth = packageMetrics.widthPixels; 1258 desiredWindowHeight = packageMetrics.heightPixels; 1259 } 1260 } 1261 } 1262 1263 // Ask host how big it wants to be 1264 windowSizeMayChange |= measureHierarchy(host, lp, res, 1265 desiredWindowWidth, desiredWindowHeight); 1266 } 1267 1268 if (collectViewAttributes()) { 1269 params = lp; 1270 } 1271 if (attachInfo.mForceReportNewAttributes) { 1272 attachInfo.mForceReportNewAttributes = false; 1273 params = lp; 1274 } 1275 1276 if (mFirst || attachInfo.mViewVisibilityChanged) { 1277 attachInfo.mViewVisibilityChanged = false; 1278 int resizeMode = mSoftInputMode & 1279 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1280 // If we are in auto resize mode, then we need to determine 1281 // what mode to use now. 1282 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1283 final int N = attachInfo.mScrollContainers.size(); 1284 for (int i=0; i<N; i++) { 1285 if (attachInfo.mScrollContainers.get(i).isShown()) { 1286 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1287 } 1288 } 1289 if (resizeMode == 0) { 1290 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1291 } 1292 if ((lp.softInputMode & 1293 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1294 lp.softInputMode = (lp.softInputMode & 1295 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1296 resizeMode; 1297 params = lp; 1298 } 1299 } 1300 } 1301 1302 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1303 if (!PixelFormat.formatHasAlpha(params.format)) { 1304 params.format = PixelFormat.TRANSLUCENT; 1305 } 1306 } 1307 1308 if (mFitSystemWindowsRequested) { 1309 mFitSystemWindowsRequested = false; 1310 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1311 host.fitSystemWindows(mFitSystemWindowsInsets); 1312 if (mLayoutRequested) { 1313 // Short-circuit catching a new layout request here, so 1314 // we don't need to go through two layout passes when things 1315 // change due to fitting system windows, which can happen a lot. 1316 windowSizeMayChange |= measureHierarchy(host, lp, 1317 mView.getContext().getResources(), 1318 desiredWindowWidth, desiredWindowHeight); 1319 } 1320 } 1321 1322 if (layoutRequested) { 1323 // Clear this now, so that if anything requests a layout in the 1324 // rest of this function we will catch it and re-run a full 1325 // layout pass. 1326 mLayoutRequested = false; 1327 } 1328 1329 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1330 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1331 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1332 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1333 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1334 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1335 1336 final boolean computesInternalInsets = 1337 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1338 1339 boolean insetsPending = false; 1340 int relayoutResult = 0; 1341 1342 if (mFirst || windowShouldResize || insetsChanged || 1343 viewVisibilityChanged || params != null) { 1344 1345 if (viewVisibility == View.VISIBLE) { 1346 // If this window is giving internal insets to the window 1347 // manager, and it is being added or changing its visibility, 1348 // then we want to first give the window manager "fake" 1349 // insets to cause it to effectively ignore the content of 1350 // the window during layout. This avoids it briefly causing 1351 // other windows to resize/move based on the raw frame of the 1352 // window, waiting until we can finish laying out this window 1353 // and get back to the window manager with the ultimately 1354 // computed insets. 1355 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1356 } 1357 1358 if (mSurfaceHolder != null) { 1359 mSurfaceHolder.mSurfaceLock.lock(); 1360 mDrawingAllowed = true; 1361 } 1362 1363 boolean hwInitialized = false; 1364 boolean contentInsetsChanged = false; 1365 boolean visibleInsetsChanged; 1366 boolean hadSurface = mSurface.isValid(); 1367 1368 try { 1369 if (DEBUG_LAYOUT) { 1370 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1371 host.getMeasuredHeight() + ", params=" + params); 1372 } 1373 1374 final int surfaceGenerationId = mSurface.getGenerationId(); 1375 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1376 1377 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1378 + " content=" + mPendingContentInsets.toShortString() 1379 + " visible=" + mPendingVisibleInsets.toShortString() 1380 + " surface=" + mSurface); 1381 1382 if (mPendingConfiguration.seq != 0) { 1383 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1384 + mPendingConfiguration); 1385 updateConfiguration(mPendingConfiguration, !mFirst); 1386 mPendingConfiguration.seq = 0; 1387 } 1388 1389 contentInsetsChanged = !mPendingContentInsets.equals( 1390 mAttachInfo.mContentInsets); 1391 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1392 mAttachInfo.mVisibleInsets); 1393 if (contentInsetsChanged) { 1394 if (mWidth > 0 && mHeight > 0 && lp != null && 1395 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1396 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1397 mSurface != null && mSurface.isValid() && 1398 !mAttachInfo.mTurnOffWindowResizeAnim && 1399 mAttachInfo.mHardwareRenderer != null && 1400 mAttachInfo.mHardwareRenderer.isEnabled() && 1401 mAttachInfo.mHardwareRenderer.validate() && 1402 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1403 1404 disposeResizeBuffer(); 1405 1406 boolean completed = false; 1407 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1408 HardwareCanvas layerCanvas = null; 1409 try { 1410 if (mResizeBuffer == null) { 1411 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1412 mWidth, mHeight, false); 1413 } else if (mResizeBuffer.getWidth() != mWidth || 1414 mResizeBuffer.getHeight() != mHeight) { 1415 mResizeBuffer.resize(mWidth, mHeight); 1416 } 1417 // TODO: should handle create/resize failure 1418 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1419 layerCanvas.setViewport(mWidth, mHeight); 1420 layerCanvas.onPreDraw(null); 1421 final int restoreCount = layerCanvas.save(); 1422 1423 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1424 1425 int yoff; 1426 final boolean scrolling = mScroller != null 1427 && mScroller.computeScrollOffset(); 1428 if (scrolling) { 1429 yoff = mScroller.getCurrY(); 1430 mScroller.abortAnimation(); 1431 } else { 1432 yoff = mScrollY; 1433 } 1434 1435 layerCanvas.translate(0, -yoff); 1436 if (mTranslator != null) { 1437 mTranslator.translateCanvas(layerCanvas); 1438 } 1439 1440 mView.draw(layerCanvas); 1441 1442 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1443 1444 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1445 mResizeBufferDuration = mView.getResources().getInteger( 1446 com.android.internal.R.integer.config_mediumAnimTime); 1447 completed = true; 1448 1449 layerCanvas.restoreToCount(restoreCount); 1450 } catch (OutOfMemoryError e) { 1451 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1452 } finally { 1453 if (layerCanvas != null) { 1454 layerCanvas.onPostDraw(); 1455 } 1456 if (mResizeBuffer != null) { 1457 mResizeBuffer.end(hwRendererCanvas); 1458 if (!completed) { 1459 mResizeBuffer.destroy(); 1460 mResizeBuffer = null; 1461 } 1462 } 1463 } 1464 } 1465 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1466 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1467 + mAttachInfo.mContentInsets); 1468 } 1469 if (contentInsetsChanged || mLastSystemUiVisibility != 1470 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1471 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1472 mFitSystemWindowsRequested = false; 1473 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1474 host.fitSystemWindows(mFitSystemWindowsInsets); 1475 } 1476 if (visibleInsetsChanged) { 1477 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1478 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1479 + mAttachInfo.mVisibleInsets); 1480 } 1481 1482 if (!hadSurface) { 1483 if (mSurface.isValid()) { 1484 // If we are creating a new surface, then we need to 1485 // completely redraw it. Also, when we get to the 1486 // point of drawing it we will hold off and schedule 1487 // a new traversal instead. This is so we can tell the 1488 // window manager about all of the windows being displayed 1489 // before actually drawing them, so it can display then 1490 // all at once. 1491 newSurface = true; 1492 mFullRedrawNeeded = true; 1493 mPreviousTransparentRegion.setEmpty(); 1494 1495 if (mAttachInfo.mHardwareRenderer != null) { 1496 try { 1497 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1498 mHolder.getSurface()); 1499 } catch (Surface.OutOfResourcesException e) { 1500 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1501 try { 1502 if (!mWindowSession.outOfMemory(mWindow) && 1503 Process.myUid() != Process.SYSTEM_UID) { 1504 Slog.w(TAG, "No processes killed for memory; killing self"); 1505 Process.killProcess(Process.myPid()); 1506 } 1507 } catch (RemoteException ex) { 1508 } 1509 mLayoutRequested = true; // ask wm for a new surface next time. 1510 return; 1511 } 1512 } 1513 } 1514 } else if (!mSurface.isValid()) { 1515 // If the surface has been removed, then reset the scroll 1516 // positions. 1517 mLastScrolledFocus = null; 1518 mScrollY = mCurScrollY = 0; 1519 if (mScroller != null) { 1520 mScroller.abortAnimation(); 1521 } 1522 disposeResizeBuffer(); 1523 // Our surface is gone 1524 if (mAttachInfo.mHardwareRenderer != null && 1525 mAttachInfo.mHardwareRenderer.isEnabled()) { 1526 mAttachInfo.mHardwareRenderer.destroy(true); 1527 } 1528 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1529 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1530 mFullRedrawNeeded = true; 1531 try { 1532 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1533 } catch (Surface.OutOfResourcesException e) { 1534 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1535 try { 1536 if (!mWindowSession.outOfMemory(mWindow)) { 1537 Slog.w(TAG, "No processes killed for memory; killing self"); 1538 Process.killProcess(Process.myPid()); 1539 } 1540 } catch (RemoteException ex) { 1541 } 1542 mLayoutRequested = true; // ask wm for a new surface next time. 1543 return; 1544 } 1545 } 1546 } catch (RemoteException e) { 1547 } 1548 1549 if (DEBUG_ORIENTATION) Log.v( 1550 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1551 1552 attachInfo.mWindowLeft = frame.left; 1553 attachInfo.mWindowTop = frame.top; 1554 1555 // !!FIXME!! This next section handles the case where we did not get the 1556 // window size we asked for. We should avoid this by getting a maximum size from 1557 // the window session beforehand. 1558 if (mWidth != frame.width() || mHeight != frame.height()) { 1559 mWidth = frame.width(); 1560 mHeight = frame.height(); 1561 } 1562 1563 if (mSurfaceHolder != null) { 1564 // The app owns the surface; tell it about what is going on. 1565 if (mSurface.isValid()) { 1566 // XXX .copyFrom() doesn't work! 1567 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1568 mSurfaceHolder.mSurface = mSurface; 1569 } 1570 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1571 mSurfaceHolder.mSurfaceLock.unlock(); 1572 if (mSurface.isValid()) { 1573 if (!hadSurface) { 1574 mSurfaceHolder.ungetCallbacks(); 1575 1576 mIsCreating = true; 1577 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1578 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1579 if (callbacks != null) { 1580 for (SurfaceHolder.Callback c : callbacks) { 1581 c.surfaceCreated(mSurfaceHolder); 1582 } 1583 } 1584 surfaceChanged = true; 1585 } 1586 if (surfaceChanged) { 1587 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1588 lp.format, mWidth, mHeight); 1589 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1590 if (callbacks != null) { 1591 for (SurfaceHolder.Callback c : callbacks) { 1592 c.surfaceChanged(mSurfaceHolder, lp.format, 1593 mWidth, mHeight); 1594 } 1595 } 1596 } 1597 mIsCreating = false; 1598 } else if (hadSurface) { 1599 mSurfaceHolder.ungetCallbacks(); 1600 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1601 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1602 if (callbacks != null) { 1603 for (SurfaceHolder.Callback c : callbacks) { 1604 c.surfaceDestroyed(mSurfaceHolder); 1605 } 1606 } 1607 mSurfaceHolder.mSurfaceLock.lock(); 1608 try { 1609 mSurfaceHolder.mSurface = new Surface(); 1610 } finally { 1611 mSurfaceHolder.mSurfaceLock.unlock(); 1612 } 1613 } 1614 } 1615 1616 if (mAttachInfo.mHardwareRenderer != null && 1617 mAttachInfo.mHardwareRenderer.isEnabled()) { 1618 if (hwInitialized || windowShouldResize || 1619 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1620 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1621 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1622 if (!hwInitialized) { 1623 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1624 mFullRedrawNeeded = true; 1625 } 1626 } 1627 } 1628 1629 if (!mStopped) { 1630 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1631 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1632 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1633 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1634 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1635 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1636 1637 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1638 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1639 + " mHeight=" + mHeight 1640 + " measuredHeight=" + host.getMeasuredHeight() 1641 + " coveredInsetsChanged=" + contentInsetsChanged); 1642 1643 // Ask host how big it wants to be 1644 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1645 1646 // Implementation of weights from WindowManager.LayoutParams 1647 // We just grow the dimensions as needed and re-measure if 1648 // needs be 1649 int width = host.getMeasuredWidth(); 1650 int height = host.getMeasuredHeight(); 1651 boolean measureAgain = false; 1652 1653 if (lp.horizontalWeight > 0.0f) { 1654 width += (int) ((mWidth - width) * lp.horizontalWeight); 1655 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1656 MeasureSpec.EXACTLY); 1657 measureAgain = true; 1658 } 1659 if (lp.verticalWeight > 0.0f) { 1660 height += (int) ((mHeight - height) * lp.verticalWeight); 1661 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1662 MeasureSpec.EXACTLY); 1663 measureAgain = true; 1664 } 1665 1666 if (measureAgain) { 1667 if (DEBUG_LAYOUT) Log.v(TAG, 1668 "And hey let's measure once more: width=" + width 1669 + " height=" + height); 1670 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1671 } 1672 1673 layoutRequested = true; 1674 } 1675 } 1676 } else { 1677 // Not the first pass and no window/insets/visibility change but the window 1678 // may have moved and we need check that and if so to update the left and right 1679 // in the attach info. We translate only the window frame since on window move 1680 // the window manager tells us only for the new frame but the insets are the 1681 // same and we do not want to translate them more than once. 1682 1683 // TODO: Well, we are checking whether the frame has changed similarly 1684 // to how this is done for the insets. This is however incorrect since 1685 // the insets and the frame are translated. For example, the old frame 1686 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1687 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1688 // true since we are comparing a not translated value to a translated one. 1689 // This scenario is rare but we may want to fix that. 1690 1691 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1692 || attachInfo.mWindowTop != frame.top); 1693 if (windowMoved) { 1694 if (mTranslator != null) { 1695 mTranslator.translateRectInScreenToAppWinFrame(frame); 1696 } 1697 attachInfo.mWindowLeft = frame.left; 1698 attachInfo.mWindowTop = frame.top; 1699 } 1700 } 1701 1702 final boolean didLayout = layoutRequested && !mStopped; 1703 boolean triggerGlobalLayoutListener = didLayout 1704 || attachInfo.mRecomputeGlobalAttributes; 1705 if (didLayout) { 1706 performLayout(); 1707 1708 // By this point all views have been sized and positionned 1709 // We can compute the transparent area 1710 1711 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1712 // start out transparent 1713 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1714 host.getLocationInWindow(mTmpLocation); 1715 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1716 mTmpLocation[0] + host.mRight - host.mLeft, 1717 mTmpLocation[1] + host.mBottom - host.mTop); 1718 1719 host.gatherTransparentRegion(mTransparentRegion); 1720 if (mTranslator != null) { 1721 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1722 } 1723 1724 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1725 mPreviousTransparentRegion.set(mTransparentRegion); 1726 // reconfigure window manager 1727 try { 1728 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1729 } catch (RemoteException e) { 1730 } 1731 } 1732 } 1733 1734 if (DBG) { 1735 System.out.println("======================================"); 1736 System.out.println("performTraversals -- after setFrame"); 1737 host.debug(); 1738 } 1739 } 1740 1741 if (triggerGlobalLayoutListener) { 1742 attachInfo.mRecomputeGlobalAttributes = false; 1743 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1744 1745 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1746 postSendWindowContentChangedCallback(mView); 1747 } 1748 } 1749 1750 if (computesInternalInsets) { 1751 // Clear the original insets. 1752 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1753 insets.reset(); 1754 1755 // Compute new insets in place. 1756 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1757 1758 // Tell the window manager. 1759 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1760 mLastGivenInsets.set(insets); 1761 1762 // Translate insets to screen coordinates if needed. 1763 final Rect contentInsets; 1764 final Rect visibleInsets; 1765 final Region touchableRegion; 1766 if (mTranslator != null) { 1767 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1768 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1769 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1770 } else { 1771 contentInsets = insets.contentInsets; 1772 visibleInsets = insets.visibleInsets; 1773 touchableRegion = insets.touchableRegion; 1774 } 1775 1776 try { 1777 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1778 contentInsets, visibleInsets, touchableRegion); 1779 } catch (RemoteException e) { 1780 } 1781 } 1782 } 1783 1784 boolean skipDraw = false; 1785 1786 if (mFirst) { 1787 // handle first focus request 1788 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1789 + mView.hasFocus()); 1790 if (mView != null) { 1791 if (!mView.hasFocus()) { 1792 mView.requestFocus(View.FOCUS_FORWARD); 1793 mFocusedView = mRealFocusedView = mView.findFocus(); 1794 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1795 + mFocusedView); 1796 } else { 1797 mRealFocusedView = mView.findFocus(); 1798 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1799 + mRealFocusedView); 1800 } 1801 } 1802 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1803 // The first time we relayout the window, if the system is 1804 // doing window animations, we want to hold of on any future 1805 // draws until the animation is done. 1806 mWindowsAnimating = true; 1807 } 1808 } else if (mWindowsAnimating) { 1809 skipDraw = true; 1810 } 1811 1812 mFirst = false; 1813 mWillDrawSoon = false; 1814 mNewSurfaceNeeded = false; 1815 mViewVisibility = viewVisibility; 1816 1817 if (mAttachInfo.mHasWindowFocus) { 1818 final boolean imTarget = WindowManager.LayoutParams 1819 .mayUseInputMethod(mWindowAttributes.flags); 1820 if (imTarget != mLastWasImTarget) { 1821 mLastWasImTarget = imTarget; 1822 InputMethodManager imm = InputMethodManager.peekInstance(); 1823 if (imm != null && imTarget) { 1824 imm.startGettingWindowFocus(mView); 1825 imm.onWindowFocus(mView, mView.findFocus(), 1826 mWindowAttributes.softInputMode, 1827 !mHasHadWindowFocus, mWindowAttributes.flags); 1828 } 1829 } 1830 } 1831 1832 // Remember if we must report the next draw. 1833 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1834 mReportNextDraw = true; 1835 } 1836 1837 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1838 viewVisibility != View.VISIBLE; 1839 1840 if (!cancelDraw && !newSurface) { 1841 if (!skipDraw || mReportNextDraw) { 1842 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1843 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1844 mPendingTransitions.get(i).startChangingAnimations(); 1845 } 1846 mPendingTransitions.clear(); 1847 } 1848 1849 performDraw(); 1850 } 1851 } else { 1852 if (viewVisibility == View.VISIBLE) { 1853 // Try again 1854 scheduleTraversals(); 1855 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1856 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1857 mPendingTransitions.get(i).endChangingAnimations(); 1858 } 1859 mPendingTransitions.clear(); 1860 } 1861 } 1862 1863 mIsInTraversal = false; 1864 } 1865 1866 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1867 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1868 try { 1869 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1870 } finally { 1871 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1872 } 1873 } 1874 1875 /** 1876 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1877 * is currently undergoing a layout pass. 1878 * 1879 * @return whether the view hierarchy is currently undergoing a layout pass 1880 */ 1881 boolean isInLayout() { 1882 return mInLayout; 1883 } 1884 1885 /** 1886 * Called by {@link android.view.View#requestLayout()} if the view hiearchy is currently 1887 * undergoing a layout pass. requestLayout() should not be called during layout, but if it 1888 * is called anyway, we handle the situation here rather than leave the hierarchy in an 1889 * indeterminate state. The solution is to queue up all requests during layout, apply those 1890 * requests as soon as layout is complete, and then run layout once more immediately. If 1891 * more requestLayout() calls are received during that second layout pass, we post those 1892 * requests to the next frame, to avoid possible infinite loops. 1893 * 1894 * @param view the view that requested the layout. 1895 */ 1896 void requestLayoutDuringLayout(final View view) { 1897 if (!mHandlingLayoutInLayoutRequest) { 1898 if (!mLayoutRequesters.contains(view)) { 1899 Log.w("View", "requestLayout() called by " + view + " during layout pass"); 1900 mLayoutRequesters.add(view); 1901 } 1902 } else { 1903 Log.w("View", "requestLayout() called by " + view + " during second layout pass: " + 1904 "posting to next frame"); 1905 view.post(new Runnable() { 1906 @Override 1907 public void run() { 1908 view.requestLayout(); 1909 } 1910 }); 1911 } 1912 } 1913 1914 private void performLayout() { 1915 mLayoutRequested = false; 1916 mScrollMayChange = true; 1917 mInLayout = true; 1918 1919 final View host = mView; 1920 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1921 Log.v(TAG, "Laying out " + host + " to (" + 1922 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1923 } 1924 1925 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1926 try { 1927 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1928 int numViewsRequestingLayout = mLayoutRequesters.size(); 1929 if (numViewsRequestingLayout > 0) { 1930 // requestLayout() was called during layout: unusual, but try to handle correctly 1931 mHandlingLayoutInLayoutRequest = true; 1932 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1933 mLayoutRequesters.get(i).requestLayout(); 1934 } 1935 // Now run layout one more time 1936 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1937 mHandlingLayoutInLayoutRequest = false; 1938 mLayoutRequesters.clear(); 1939 } 1940 } finally { 1941 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1942 } 1943 mInLayout = false; 1944 } 1945 1946 public void requestTransparentRegion(View child) { 1947 // the test below should not fail unless someone is messing with us 1948 checkThread(); 1949 if (mView == child) { 1950 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1951 // Need to make sure we re-evaluate the window attributes next 1952 // time around, to ensure the window has the correct format. 1953 mWindowAttributesChanged = true; 1954 mWindowAttributesChangesFlag = 0; 1955 requestLayout(); 1956 } 1957 } 1958 1959 /** 1960 * Figures out the measure spec for the root view in a window based on it's 1961 * layout params. 1962 * 1963 * @param windowSize 1964 * The available width or height of the window 1965 * 1966 * @param rootDimension 1967 * The layout params for one dimension (width or height) of the 1968 * window. 1969 * 1970 * @return The measure spec to use to measure the root view. 1971 */ 1972 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1973 int measureSpec; 1974 switch (rootDimension) { 1975 1976 case ViewGroup.LayoutParams.MATCH_PARENT: 1977 // Window can't resize. Force root view to be windowSize. 1978 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1979 break; 1980 case ViewGroup.LayoutParams.WRAP_CONTENT: 1981 // Window can resize. Set max size for root view. 1982 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1983 break; 1984 default: 1985 // Window wants to be an exact size. Force root view to be that size. 1986 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1987 break; 1988 } 1989 return measureSpec; 1990 } 1991 1992 int mHardwareYOffset; 1993 int mResizeAlpha; 1994 final Paint mResizePaint = new Paint(); 1995 1996 public void onHardwarePreDraw(HardwareCanvas canvas) { 1997 canvas.translate(0, -mHardwareYOffset); 1998 } 1999 2000 public void onHardwarePostDraw(HardwareCanvas canvas) { 2001 if (mResizeBuffer != null) { 2002 mResizePaint.setAlpha(mResizeAlpha); 2003 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2004 } 2005 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2006 } 2007 2008 /** 2009 * @hide 2010 */ 2011 void outputDisplayList(View view) { 2012 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2013 DisplayList displayList = view.getDisplayList(); 2014 if (displayList != null) { 2015 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2016 } 2017 } 2018 } 2019 2020 /** 2021 * @see #PROPERTY_PROFILE_RENDERING 2022 */ 2023 private void profileRendering(boolean enabled) { 2024 if (mProfileRendering) { 2025 mRenderProfilingEnabled = enabled; 2026 if (mRenderProfiler == null) { 2027 mRenderProfiler = new Thread(new Runnable() { 2028 @Override 2029 public void run() { 2030 Log.d(TAG, "Starting profiling thread"); 2031 while (mRenderProfilingEnabled) { 2032 mAttachInfo.mHandler.post(new Runnable() { 2033 @Override 2034 public void run() { 2035 mDirty.set(0, 0, mWidth, mHeight); 2036 scheduleTraversals(); 2037 } 2038 }); 2039 try { 2040 // TODO: This should use vsync when we get an API 2041 Thread.sleep(15); 2042 } catch (InterruptedException e) { 2043 Log.d(TAG, "Exiting profiling thread"); 2044 } 2045 } 2046 } 2047 }, "Rendering Profiler"); 2048 mRenderProfiler.start(); 2049 } else { 2050 mRenderProfiler.interrupt(); 2051 mRenderProfiler = null; 2052 } 2053 } 2054 } 2055 2056 /** 2057 * Called from draw() when DEBUG_FPS is enabled 2058 */ 2059 private void trackFPS() { 2060 // Tracks frames per second drawn. First value in a series of draws may be bogus 2061 // because it down not account for the intervening idle time 2062 long nowTime = System.currentTimeMillis(); 2063 if (mFpsStartTime < 0) { 2064 mFpsStartTime = mFpsPrevTime = nowTime; 2065 mFpsNumFrames = 0; 2066 } else { 2067 ++mFpsNumFrames; 2068 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2069 long frameTime = nowTime - mFpsPrevTime; 2070 long totalTime = nowTime - mFpsStartTime; 2071 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2072 mFpsPrevTime = nowTime; 2073 if (totalTime > 1000) { 2074 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2075 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2076 mFpsStartTime = nowTime; 2077 mFpsNumFrames = 0; 2078 } 2079 } 2080 } 2081 2082 private void performDraw() { 2083 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2084 return; 2085 } 2086 2087 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2088 mFullRedrawNeeded = false; 2089 2090 mIsDrawing = true; 2091 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2092 try { 2093 draw(fullRedrawNeeded); 2094 } finally { 2095 mIsDrawing = false; 2096 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2097 } 2098 2099 if (mReportNextDraw) { 2100 mReportNextDraw = false; 2101 2102 if (LOCAL_LOGV) { 2103 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2104 } 2105 if (mSurfaceHolder != null && mSurface.isValid()) { 2106 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2107 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2108 if (callbacks != null) { 2109 for (SurfaceHolder.Callback c : callbacks) { 2110 if (c instanceof SurfaceHolder.Callback2) { 2111 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2112 mSurfaceHolder); 2113 } 2114 } 2115 } 2116 } 2117 try { 2118 mWindowSession.finishDrawing(mWindow); 2119 } catch (RemoteException e) { 2120 } 2121 } 2122 } 2123 2124 private void draw(boolean fullRedrawNeeded) { 2125 Surface surface = mSurface; 2126 if (surface == null || !surface.isValid()) { 2127 return; 2128 } 2129 2130 if (DEBUG_FPS) { 2131 trackFPS(); 2132 } 2133 2134 if (!sFirstDrawComplete) { 2135 synchronized (sFirstDrawHandlers) { 2136 sFirstDrawComplete = true; 2137 final int count = sFirstDrawHandlers.size(); 2138 for (int i = 0; i< count; i++) { 2139 mHandler.post(sFirstDrawHandlers.get(i)); 2140 } 2141 } 2142 } 2143 2144 scrollToRectOrFocus(null, false); 2145 2146 final AttachInfo attachInfo = mAttachInfo; 2147 if (attachInfo.mViewScrollChanged) { 2148 attachInfo.mViewScrollChanged = false; 2149 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2150 } 2151 2152 int yoff; 2153 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2154 if (animating) { 2155 yoff = mScroller.getCurrY(); 2156 } else { 2157 yoff = mScrollY; 2158 } 2159 if (mCurScrollY != yoff) { 2160 mCurScrollY = yoff; 2161 fullRedrawNeeded = true; 2162 } 2163 2164 final float appScale = attachInfo.mApplicationScale; 2165 final boolean scalingRequired = attachInfo.mScalingRequired; 2166 2167 int resizeAlpha = 0; 2168 if (mResizeBuffer != null) { 2169 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2170 if (deltaTime < mResizeBufferDuration) { 2171 float amt = deltaTime/(float) mResizeBufferDuration; 2172 amt = mResizeInterpolator.getInterpolation(amt); 2173 animating = true; 2174 resizeAlpha = 255 - (int)(amt*255); 2175 } else { 2176 disposeResizeBuffer(); 2177 } 2178 } 2179 2180 final Rect dirty = mDirty; 2181 if (mSurfaceHolder != null) { 2182 // The app owns the surface, we won't draw. 2183 dirty.setEmpty(); 2184 if (animating) { 2185 if (mScroller != null) { 2186 mScroller.abortAnimation(); 2187 } 2188 disposeResizeBuffer(); 2189 } 2190 return; 2191 } 2192 2193 if (fullRedrawNeeded) { 2194 attachInfo.mIgnoreDirtyState = true; 2195 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2196 } 2197 2198 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2199 Log.v(TAG, "Draw " + mView + "/" 2200 + mWindowAttributes.getTitle() 2201 + ": dirty={" + dirty.left + "," + dirty.top 2202 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2203 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2204 appScale + ", width=" + mWidth + ", height=" + mHeight); 2205 } 2206 2207 attachInfo.mTreeObserver.dispatchOnDraw(); 2208 2209 if (!dirty.isEmpty() || mIsAnimating) { 2210 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2211 // Draw with hardware renderer. 2212 mIsAnimating = false; 2213 mHardwareYOffset = yoff; 2214 mResizeAlpha = resizeAlpha; 2215 2216 mCurrentDirty.set(dirty); 2217 mCurrentDirty.union(mPreviousDirty); 2218 mPreviousDirty.set(dirty); 2219 dirty.setEmpty(); 2220 2221 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2222 animating ? null : mCurrentDirty)) { 2223 mPreviousDirty.set(0, 0, mWidth, mHeight); 2224 } 2225 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2226 return; 2227 } 2228 } 2229 2230 if (animating) { 2231 mFullRedrawNeeded = true; 2232 scheduleTraversals(); 2233 } 2234 } 2235 2236 /** 2237 * @return true if drawing was succesfull, false if an error occurred 2238 */ 2239 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2240 boolean scalingRequired, Rect dirty) { 2241 2242 // If we get here with a disabled & requested hardware renderer, something went 2243 // wrong (an invalidate posted right before we destroyed the hardware surface 2244 // for instance) so we should just bail out. Locking the surface with software 2245 // rendering at this point would lock it forever and prevent hardware renderer 2246 // from doing its job when it comes back. 2247 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2248 attachInfo.mHardwareRenderer.isRequested()) { 2249 mFullRedrawNeeded = true; 2250 scheduleTraversals(); 2251 return false; 2252 } 2253 2254 // Draw with software renderer. 2255 Canvas canvas; 2256 try { 2257 int left = dirty.left; 2258 int top = dirty.top; 2259 int right = dirty.right; 2260 int bottom = dirty.bottom; 2261 2262 canvas = mSurface.lockCanvas(dirty); 2263 2264 if (left != dirty.left || top != dirty.top || right != dirty.right || 2265 bottom != dirty.bottom) { 2266 attachInfo.mIgnoreDirtyState = true; 2267 } 2268 2269 // TODO: Do this in native 2270 canvas.setDensity(mDensity); 2271 } catch (Surface.OutOfResourcesException e) { 2272 Log.e(TAG, "OutOfResourcesException locking surface", e); 2273 try { 2274 if (!mWindowSession.outOfMemory(mWindow)) { 2275 Slog.w(TAG, "No processes killed for memory; killing self"); 2276 Process.killProcess(Process.myPid()); 2277 } 2278 } catch (RemoteException ex) { 2279 } 2280 mLayoutRequested = true; // ask wm for a new surface next time. 2281 return false; 2282 } catch (IllegalArgumentException e) { 2283 Log.e(TAG, "Could not lock surface", e); 2284 // Don't assume this is due to out of memory, it could be 2285 // something else, and if it is something else then we could 2286 // kill stuff (or ourself) for no reason. 2287 mLayoutRequested = true; // ask wm for a new surface next time. 2288 return false; 2289 } 2290 2291 try { 2292 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2293 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2294 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2295 //canvas.drawARGB(255, 255, 0, 0); 2296 } 2297 2298 // If this bitmap's format includes an alpha channel, we 2299 // need to clear it before drawing so that the child will 2300 // properly re-composite its drawing on a transparent 2301 // background. This automatically respects the clip/dirty region 2302 // or 2303 // If we are applying an offset, we need to clear the area 2304 // where the offset doesn't appear to avoid having garbage 2305 // left in the blank areas. 2306 if (!canvas.isOpaque() || yoff != 0) { 2307 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2308 } 2309 2310 dirty.setEmpty(); 2311 mIsAnimating = false; 2312 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2313 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2314 2315 if (DEBUG_DRAW) { 2316 Context cxt = mView.getContext(); 2317 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2318 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2319 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2320 } 2321 try { 2322 canvas.translate(0, -yoff); 2323 if (mTranslator != null) { 2324 mTranslator.translateCanvas(canvas); 2325 } 2326 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2327 attachInfo.mSetIgnoreDirtyState = false; 2328 2329 mView.draw(canvas); 2330 2331 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2332 } finally { 2333 if (!attachInfo.mSetIgnoreDirtyState) { 2334 // Only clear the flag if it was not set during the mView.draw() call 2335 attachInfo.mIgnoreDirtyState = false; 2336 } 2337 } 2338 } finally { 2339 try { 2340 surface.unlockCanvasAndPost(canvas); 2341 } catch (IllegalArgumentException e) { 2342 Log.e(TAG, "Could not unlock surface", e); 2343 mLayoutRequested = true; // ask wm for a new surface next time. 2344 //noinspection ReturnInsideFinallyBlock 2345 return false; 2346 } 2347 2348 if (LOCAL_LOGV) { 2349 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2350 } 2351 } 2352 return true; 2353 } 2354 2355 /** 2356 * We want to draw a highlight around the current accessibility focused. 2357 * Since adding a style for all possible view is not a viable option we 2358 * have this specialized drawing method. 2359 * 2360 * Note: We are doing this here to be able to draw the highlight for 2361 * virtual views in addition to real ones. 2362 * 2363 * @param canvas The canvas on which to draw. 2364 */ 2365 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2366 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2367 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2368 return; 2369 } 2370 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2371 return; 2372 } 2373 Drawable drawable = getAccessibilityFocusedDrawable(); 2374 if (drawable == null) { 2375 return; 2376 } 2377 AccessibilityNodeProvider provider = 2378 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2379 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2380 if (provider == null) { 2381 mAccessibilityFocusedHost.getDrawingRect(bounds); 2382 if (mView instanceof ViewGroup) { 2383 ViewGroup viewGroup = (ViewGroup) mView; 2384 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2385 } 2386 } else { 2387 if (mAccessibilityFocusedVirtualView == null) { 2388 return; 2389 } 2390 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2391 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2392 } 2393 drawable.setBounds(bounds); 2394 drawable.draw(canvas); 2395 } 2396 2397 private Drawable getAccessibilityFocusedDrawable() { 2398 if (mAttachInfo != null) { 2399 // Lazily load the accessibility focus drawable. 2400 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2401 TypedValue value = new TypedValue(); 2402 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2403 R.attr.accessibilityFocusedDrawable, value, true); 2404 if (resolved) { 2405 mAttachInfo.mAccessibilityFocusDrawable = 2406 mView.mContext.getResources().getDrawable(value.resourceId); 2407 } 2408 } 2409 return mAttachInfo.mAccessibilityFocusDrawable; 2410 } 2411 return null; 2412 } 2413 2414 void invalidateDisplayLists() { 2415 final ArrayList<DisplayList> displayLists = mDisplayLists; 2416 final int count = displayLists.size(); 2417 2418 for (int i = 0; i < count; i++) { 2419 final DisplayList displayList = displayLists.get(i); 2420 displayList.invalidate(); 2421 displayList.clear(); 2422 } 2423 2424 displayLists.clear(); 2425 } 2426 2427 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2428 final View.AttachInfo attachInfo = mAttachInfo; 2429 final Rect ci = attachInfo.mContentInsets; 2430 final Rect vi = attachInfo.mVisibleInsets; 2431 int scrollY = 0; 2432 boolean handled = false; 2433 2434 if (vi.left > ci.left || vi.top > ci.top 2435 || vi.right > ci.right || vi.bottom > ci.bottom) { 2436 // We'll assume that we aren't going to change the scroll 2437 // offset, since we want to avoid that unless it is actually 2438 // going to make the focus visible... otherwise we scroll 2439 // all over the place. 2440 scrollY = mScrollY; 2441 // We can be called for two different situations: during a draw, 2442 // to update the scroll position if the focus has changed (in which 2443 // case 'rectangle' is null), or in response to a 2444 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2445 // is non-null and we just want to scroll to whatever that 2446 // rectangle is). 2447 View focus = mRealFocusedView; 2448 2449 // When in touch mode, focus points to the previously focused view, 2450 // which may have been removed from the view hierarchy. The following 2451 // line checks whether the view is still in our hierarchy. 2452 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2453 mRealFocusedView = null; 2454 return false; 2455 } 2456 2457 if (focus != mLastScrolledFocus) { 2458 // If the focus has changed, then ignore any requests to scroll 2459 // to a rectangle; first we want to make sure the entire focus 2460 // view is visible. 2461 rectangle = null; 2462 } 2463 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2464 + " rectangle=" + rectangle + " ci=" + ci 2465 + " vi=" + vi); 2466 if (focus == mLastScrolledFocus && !mScrollMayChange 2467 && rectangle == null) { 2468 // Optimization: if the focus hasn't changed since last 2469 // time, and no layout has happened, then just leave things 2470 // as they are. 2471 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2472 + mScrollY + " vi=" + vi.toShortString()); 2473 } else if (focus != null) { 2474 // We need to determine if the currently focused view is 2475 // within the visible part of the window and, if not, apply 2476 // a pan so it can be seen. 2477 mLastScrolledFocus = focus; 2478 mScrollMayChange = false; 2479 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2480 // Try to find the rectangle from the focus view. 2481 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2482 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2483 + mView.getWidth() + " h=" + mView.getHeight() 2484 + " ci=" + ci.toShortString() 2485 + " vi=" + vi.toShortString()); 2486 if (rectangle == null) { 2487 focus.getFocusedRect(mTempRect); 2488 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2489 + ": focusRect=" + mTempRect.toShortString()); 2490 if (mView instanceof ViewGroup) { 2491 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2492 focus, mTempRect); 2493 } 2494 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2495 "Focus in window: focusRect=" 2496 + mTempRect.toShortString() 2497 + " visRect=" + mVisRect.toShortString()); 2498 } else { 2499 mTempRect.set(rectangle); 2500 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2501 "Request scroll to rect: " 2502 + mTempRect.toShortString() 2503 + " visRect=" + mVisRect.toShortString()); 2504 } 2505 if (mTempRect.intersect(mVisRect)) { 2506 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2507 "Focus window visible rect: " 2508 + mTempRect.toShortString()); 2509 if (mTempRect.height() > 2510 (mView.getHeight()-vi.top-vi.bottom)) { 2511 // If the focus simply is not going to fit, then 2512 // best is probably just to leave things as-is. 2513 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2514 "Too tall; leaving scrollY=" + scrollY); 2515 } else if ((mTempRect.top-scrollY) < vi.top) { 2516 scrollY -= vi.top - (mTempRect.top-scrollY); 2517 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2518 "Top covered; scrollY=" + scrollY); 2519 } else if ((mTempRect.bottom-scrollY) 2520 > (mView.getHeight()-vi.bottom)) { 2521 scrollY += (mTempRect.bottom-scrollY) 2522 - (mView.getHeight()-vi.bottom); 2523 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2524 "Bottom covered; scrollY=" + scrollY); 2525 } 2526 handled = true; 2527 } 2528 } 2529 } 2530 } 2531 2532 if (scrollY != mScrollY) { 2533 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2534 + mScrollY + " , new=" + scrollY); 2535 if (!immediate && mResizeBuffer == null) { 2536 if (mScroller == null) { 2537 mScroller = new Scroller(mView.getContext()); 2538 } 2539 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2540 } else if (mScroller != null) { 2541 mScroller.abortAnimation(); 2542 } 2543 mScrollY = scrollY; 2544 } 2545 2546 return handled; 2547 } 2548 2549 /** 2550 * @hide 2551 */ 2552 public View getAccessibilityFocusedHost() { 2553 return mAccessibilityFocusedHost; 2554 } 2555 2556 /** 2557 * @hide 2558 */ 2559 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2560 return mAccessibilityFocusedVirtualView; 2561 } 2562 2563 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2564 // If we have a virtual view with accessibility focus we need 2565 // to clear the focus and invalidate the virtual view bounds. 2566 if (mAccessibilityFocusedVirtualView != null) { 2567 2568 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2569 View focusHost = mAccessibilityFocusedHost; 2570 focusHost.clearAccessibilityFocusNoCallbacks(); 2571 2572 // Wipe the state of the current accessibility focus since 2573 // the call into the provider to clear accessibility focus 2574 // will fire an accessibility event which will end up calling 2575 // this method and we want to have clean state when this 2576 // invocation happens. 2577 mAccessibilityFocusedHost = null; 2578 mAccessibilityFocusedVirtualView = null; 2579 2580 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2581 if (provider != null) { 2582 // Invalidate the area of the cleared accessibility focus. 2583 focusNode.getBoundsInParent(mTempRect); 2584 focusHost.invalidate(mTempRect); 2585 // Clear accessibility focus in the virtual node. 2586 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2587 focusNode.getSourceNodeId()); 2588 provider.performAction(virtualNodeId, 2589 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2590 } 2591 focusNode.recycle(); 2592 } 2593 if (mAccessibilityFocusedHost != null) { 2594 // Clear accessibility focus in the view. 2595 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2596 } 2597 2598 // Set the new focus host and node. 2599 mAccessibilityFocusedHost = view; 2600 mAccessibilityFocusedVirtualView = node; 2601 } 2602 2603 public void requestChildFocus(View child, View focused) { 2604 checkThread(); 2605 2606 if (DEBUG_INPUT_RESIZE) { 2607 Log.v(TAG, "Request child focus: focus now " + focused); 2608 } 2609 2610 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2611 scheduleTraversals(); 2612 2613 mFocusedView = mRealFocusedView = focused; 2614 } 2615 2616 public void clearChildFocus(View child) { 2617 checkThread(); 2618 2619 if (DEBUG_INPUT_RESIZE) { 2620 Log.v(TAG, "Clearing child focus"); 2621 } 2622 2623 mOldFocusedView = mFocusedView; 2624 2625 // Invoke the listener only if there is no view to take focus 2626 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2627 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2628 } 2629 2630 mFocusedView = mRealFocusedView = null; 2631 } 2632 2633 @Override 2634 public ViewParent getParentForAccessibility() { 2635 return null; 2636 } 2637 2638 public void focusableViewAvailable(View v) { 2639 checkThread(); 2640 if (mView != null) { 2641 if (!mView.hasFocus()) { 2642 v.requestFocus(); 2643 } else { 2644 // the one case where will transfer focus away from the current one 2645 // is if the current view is a view group that prefers to give focus 2646 // to its children first AND the view is a descendant of it. 2647 mFocusedView = mView.findFocus(); 2648 boolean descendantsHaveDibsOnFocus = 2649 (mFocusedView instanceof ViewGroup) && 2650 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2651 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2652 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2653 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2654 v.requestFocus(); 2655 } 2656 } 2657 } 2658 } 2659 2660 public void recomputeViewAttributes(View child) { 2661 checkThread(); 2662 if (mView == child) { 2663 mAttachInfo.mRecomputeGlobalAttributes = true; 2664 if (!mWillDrawSoon) { 2665 scheduleTraversals(); 2666 } 2667 } 2668 } 2669 2670 void dispatchDetachedFromWindow() { 2671 if (mView != null && mView.mAttachInfo != null) { 2672 if (mAttachInfo.mHardwareRenderer != null && 2673 mAttachInfo.mHardwareRenderer.isEnabled()) { 2674 mAttachInfo.mHardwareRenderer.validate(); 2675 } 2676 mView.dispatchDetachedFromWindow(); 2677 } 2678 2679 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2680 mAccessibilityManager.removeAccessibilityStateChangeListener( 2681 mAccessibilityInteractionConnectionManager); 2682 removeSendWindowContentChangedCallback(); 2683 2684 destroyHardwareRenderer(); 2685 2686 setAccessibilityFocus(null, null); 2687 2688 mView = null; 2689 mAttachInfo.mRootView = null; 2690 mAttachInfo.mSurface = null; 2691 2692 mSurface.release(); 2693 2694 if (mInputQueueCallback != null && mInputQueue != null) { 2695 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2696 mInputQueueCallback = null; 2697 mInputQueue = null; 2698 } else if (mInputEventReceiver != null) { 2699 mInputEventReceiver.dispose(); 2700 mInputEventReceiver = null; 2701 } 2702 try { 2703 mWindowSession.remove(mWindow); 2704 } catch (RemoteException e) { 2705 } 2706 2707 // Dispose the input channel after removing the window so the Window Manager 2708 // doesn't interpret the input channel being closed as an abnormal termination. 2709 if (mInputChannel != null) { 2710 mInputChannel.dispose(); 2711 mInputChannel = null; 2712 } 2713 2714 unscheduleTraversals(); 2715 } 2716 2717 void updateConfiguration(Configuration config, boolean force) { 2718 if (DEBUG_CONFIGURATION) Log.v(TAG, 2719 "Applying new config to window " 2720 + mWindowAttributes.getTitle() 2721 + ": " + config); 2722 2723 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2724 if (ci != null) { 2725 config = new Configuration(config); 2726 ci.applyToConfiguration(mNoncompatDensity, config); 2727 } 2728 2729 synchronized (sConfigCallbacks) { 2730 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2731 sConfigCallbacks.get(i).onConfigurationChanged(config); 2732 } 2733 } 2734 if (mView != null) { 2735 // At this point the resources have been updated to 2736 // have the most recent config, whatever that is. Use 2737 // the one in them which may be newer. 2738 config = mView.getResources().getConfiguration(); 2739 if (force || mLastConfiguration.diff(config) != 0) { 2740 mLastConfiguration.setTo(config); 2741 mView.dispatchConfigurationChanged(config); 2742 } 2743 } 2744 } 2745 2746 /** 2747 * Return true if child is an ancestor of parent, (or equal to the parent). 2748 */ 2749 public static boolean isViewDescendantOf(View child, View parent) { 2750 if (child == parent) { 2751 return true; 2752 } 2753 2754 final ViewParent theParent = child.getParent(); 2755 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2756 } 2757 2758 private static void forceLayout(View view) { 2759 view.forceLayout(); 2760 if (view instanceof ViewGroup) { 2761 ViewGroup group = (ViewGroup) view; 2762 final int count = group.getChildCount(); 2763 for (int i = 0; i < count; i++) { 2764 forceLayout(group.getChildAt(i)); 2765 } 2766 } 2767 } 2768 2769 private final static int MSG_INVALIDATE = 1; 2770 private final static int MSG_INVALIDATE_RECT = 2; 2771 private final static int MSG_DIE = 3; 2772 private final static int MSG_RESIZED = 4; 2773 private final static int MSG_RESIZED_REPORT = 5; 2774 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2775 private final static int MSG_DISPATCH_KEY = 7; 2776 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2777 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2778 private final static int MSG_IME_FINISHED_EVENT = 10; 2779 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2780 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2781 private final static int MSG_CHECK_FOCUS = 13; 2782 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2783 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2784 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2785 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2786 private final static int MSG_UPDATE_CONFIGURATION = 18; 2787 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2788 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2789 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2790 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2791 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2792 private final static int MSG_INVALIDATE_WORLD = 24; 2793 private final static int MSG_WINDOW_MOVED = 25; 2794 2795 final class ViewRootHandler extends Handler { 2796 @Override 2797 public String getMessageName(Message message) { 2798 switch (message.what) { 2799 case MSG_INVALIDATE: 2800 return "MSG_INVALIDATE"; 2801 case MSG_INVALIDATE_RECT: 2802 return "MSG_INVALIDATE_RECT"; 2803 case MSG_DIE: 2804 return "MSG_DIE"; 2805 case MSG_RESIZED: 2806 return "MSG_RESIZED"; 2807 case MSG_RESIZED_REPORT: 2808 return "MSG_RESIZED_REPORT"; 2809 case MSG_WINDOW_FOCUS_CHANGED: 2810 return "MSG_WINDOW_FOCUS_CHANGED"; 2811 case MSG_DISPATCH_KEY: 2812 return "MSG_DISPATCH_KEY"; 2813 case MSG_DISPATCH_APP_VISIBILITY: 2814 return "MSG_DISPATCH_APP_VISIBILITY"; 2815 case MSG_DISPATCH_GET_NEW_SURFACE: 2816 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2817 case MSG_IME_FINISHED_EVENT: 2818 return "MSG_IME_FINISHED_EVENT"; 2819 case MSG_DISPATCH_KEY_FROM_IME: 2820 return "MSG_DISPATCH_KEY_FROM_IME"; 2821 case MSG_FINISH_INPUT_CONNECTION: 2822 return "MSG_FINISH_INPUT_CONNECTION"; 2823 case MSG_CHECK_FOCUS: 2824 return "MSG_CHECK_FOCUS"; 2825 case MSG_CLOSE_SYSTEM_DIALOGS: 2826 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2827 case MSG_DISPATCH_DRAG_EVENT: 2828 return "MSG_DISPATCH_DRAG_EVENT"; 2829 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2830 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2831 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2832 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2833 case MSG_UPDATE_CONFIGURATION: 2834 return "MSG_UPDATE_CONFIGURATION"; 2835 case MSG_PROCESS_INPUT_EVENTS: 2836 return "MSG_PROCESS_INPUT_EVENTS"; 2837 case MSG_DISPATCH_SCREEN_STATE: 2838 return "MSG_DISPATCH_SCREEN_STATE"; 2839 case MSG_INVALIDATE_DISPLAY_LIST: 2840 return "MSG_INVALIDATE_DISPLAY_LIST"; 2841 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2842 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2843 case MSG_DISPATCH_DONE_ANIMATING: 2844 return "MSG_DISPATCH_DONE_ANIMATING"; 2845 case MSG_WINDOW_MOVED: 2846 return "MSG_WINDOW_MOVED"; 2847 } 2848 return super.getMessageName(message); 2849 } 2850 2851 @Override 2852 public void handleMessage(Message msg) { 2853 switch (msg.what) { 2854 case MSG_INVALIDATE: 2855 ((View) msg.obj).invalidate(); 2856 break; 2857 case MSG_INVALIDATE_RECT: 2858 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2859 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2860 info.release(); 2861 break; 2862 case MSG_IME_FINISHED_EVENT: 2863 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2864 break; 2865 case MSG_PROCESS_INPUT_EVENTS: 2866 mProcessInputEventsScheduled = false; 2867 doProcessInputEvents(); 2868 break; 2869 case MSG_DISPATCH_APP_VISIBILITY: 2870 handleAppVisibility(msg.arg1 != 0); 2871 break; 2872 case MSG_DISPATCH_GET_NEW_SURFACE: 2873 handleGetNewSurface(); 2874 break; 2875 case MSG_RESIZED: { 2876 // Recycled in the fall through... 2877 SomeArgs args = (SomeArgs) msg.obj; 2878 if (mWinFrame.equals((Rect) args.arg1) 2879 && mPendingContentInsets.equals((Rect) args.arg2) 2880 && mPendingVisibleInsets.equals((Rect) args.arg3) 2881 && ((Configuration) args.arg4 == null)) { 2882 break; 2883 } 2884 } // fall through... 2885 case MSG_RESIZED_REPORT: 2886 if (mAdded) { 2887 SomeArgs args = (SomeArgs) msg.obj; 2888 2889 Configuration config = (Configuration) args.arg4; 2890 if (config != null) { 2891 updateConfiguration(config, false); 2892 } 2893 2894 mWinFrame.set((Rect) args.arg1); 2895 mPendingContentInsets.set((Rect) args.arg2); 2896 mPendingVisibleInsets.set((Rect) args.arg3); 2897 2898 args.recycle(); 2899 2900 if (msg.what == MSG_RESIZED_REPORT) { 2901 mReportNextDraw = true; 2902 } 2903 2904 if (mView != null) { 2905 forceLayout(mView); 2906 } 2907 2908 requestLayout(); 2909 } 2910 break; 2911 case MSG_WINDOW_MOVED: 2912 if (mAdded) { 2913 final int w = mWinFrame.width(); 2914 final int h = mWinFrame.height(); 2915 final int l = msg.arg1; 2916 final int t = msg.arg2; 2917 mWinFrame.left = l; 2918 mWinFrame.right = l + w; 2919 mWinFrame.top = t; 2920 mWinFrame.bottom = t + h; 2921 2922 if (mView != null) { 2923 forceLayout(mView); 2924 } 2925 requestLayout(); 2926 } 2927 break; 2928 case MSG_WINDOW_FOCUS_CHANGED: { 2929 if (mAdded) { 2930 boolean hasWindowFocus = msg.arg1 != 0; 2931 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2932 2933 profileRendering(hasWindowFocus); 2934 2935 if (hasWindowFocus) { 2936 boolean inTouchMode = msg.arg2 != 0; 2937 ensureTouchModeLocally(inTouchMode); 2938 2939 if (mAttachInfo.mHardwareRenderer != null && 2940 mSurface != null && mSurface.isValid()) { 2941 mFullRedrawNeeded = true; 2942 try { 2943 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2944 mHolder.getSurface()); 2945 } catch (Surface.OutOfResourcesException e) { 2946 Log.e(TAG, "OutOfResourcesException locking surface", e); 2947 try { 2948 if (!mWindowSession.outOfMemory(mWindow)) { 2949 Slog.w(TAG, "No processes killed for memory; killing self"); 2950 Process.killProcess(Process.myPid()); 2951 } 2952 } catch (RemoteException ex) { 2953 } 2954 // Retry in a bit. 2955 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2956 return; 2957 } 2958 } 2959 } 2960 2961 mLastWasImTarget = WindowManager.LayoutParams 2962 .mayUseInputMethod(mWindowAttributes.flags); 2963 2964 InputMethodManager imm = InputMethodManager.peekInstance(); 2965 if (mView != null) { 2966 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2967 imm.startGettingWindowFocus(mView); 2968 } 2969 mAttachInfo.mKeyDispatchState.reset(); 2970 mView.dispatchWindowFocusChanged(hasWindowFocus); 2971 } 2972 2973 // Note: must be done after the focus change callbacks, 2974 // so all of the view state is set up correctly. 2975 if (hasWindowFocus) { 2976 if (imm != null && mLastWasImTarget) { 2977 imm.onWindowFocus(mView, mView.findFocus(), 2978 mWindowAttributes.softInputMode, 2979 !mHasHadWindowFocus, mWindowAttributes.flags); 2980 } 2981 // Clear the forward bit. We can just do this directly, since 2982 // the window manager doesn't care about it. 2983 mWindowAttributes.softInputMode &= 2984 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2985 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2986 .softInputMode &= 2987 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2988 mHasHadWindowFocus = true; 2989 } 2990 2991 setAccessibilityFocus(null, null); 2992 2993 if (mView != null && mAccessibilityManager.isEnabled()) { 2994 if (hasWindowFocus) { 2995 mView.sendAccessibilityEvent( 2996 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2997 } 2998 } 2999 } 3000 } break; 3001 case MSG_DIE: 3002 doDie(); 3003 break; 3004 case MSG_DISPATCH_KEY: { 3005 KeyEvent event = (KeyEvent)msg.obj; 3006 enqueueInputEvent(event, null, 0, true); 3007 } break; 3008 case MSG_DISPATCH_KEY_FROM_IME: { 3009 if (LOCAL_LOGV) Log.v( 3010 TAG, "Dispatching key " 3011 + msg.obj + " from IME to " + mView); 3012 KeyEvent event = (KeyEvent)msg.obj; 3013 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3014 // The IME is trying to say this event is from the 3015 // system! Bad bad bad! 3016 //noinspection UnusedAssignment 3017 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3018 } 3019 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3020 } break; 3021 case MSG_FINISH_INPUT_CONNECTION: { 3022 InputMethodManager imm = InputMethodManager.peekInstance(); 3023 if (imm != null) { 3024 imm.reportFinishInputConnection((InputConnection)msg.obj); 3025 } 3026 } break; 3027 case MSG_CHECK_FOCUS: { 3028 InputMethodManager imm = InputMethodManager.peekInstance(); 3029 if (imm != null) { 3030 imm.checkFocus(); 3031 } 3032 } break; 3033 case MSG_CLOSE_SYSTEM_DIALOGS: { 3034 if (mView != null) { 3035 mView.onCloseSystemDialogs((String)msg.obj); 3036 } 3037 } break; 3038 case MSG_DISPATCH_DRAG_EVENT: 3039 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3040 DragEvent event = (DragEvent)msg.obj; 3041 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3042 handleDragEvent(event); 3043 } break; 3044 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3045 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3046 } break; 3047 case MSG_UPDATE_CONFIGURATION: { 3048 Configuration config = (Configuration)msg.obj; 3049 if (config.isOtherSeqNewer(mLastConfiguration)) { 3050 config = mLastConfiguration; 3051 } 3052 updateConfiguration(config, false); 3053 } break; 3054 case MSG_DISPATCH_SCREEN_STATE: { 3055 if (mView != null) { 3056 handleScreenStateChange(msg.arg1 == 1); 3057 } 3058 } break; 3059 case MSG_INVALIDATE_DISPLAY_LIST: { 3060 invalidateDisplayLists(); 3061 } break; 3062 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3063 setAccessibilityFocus(null, null); 3064 } break; 3065 case MSG_DISPATCH_DONE_ANIMATING: { 3066 handleDispatchDoneAnimating(); 3067 } break; 3068 case MSG_INVALIDATE_WORLD: { 3069 if (mView != null) { 3070 invalidateWorld(mView); 3071 } 3072 } break; 3073 } 3074 } 3075 } 3076 3077 final ViewRootHandler mHandler = new ViewRootHandler(); 3078 3079 /** 3080 * Something in the current window tells us we need to change the touch mode. For 3081 * example, we are not in touch mode, and the user touches the screen. 3082 * 3083 * If the touch mode has changed, tell the window manager, and handle it locally. 3084 * 3085 * @param inTouchMode Whether we want to be in touch mode. 3086 * @return True if the touch mode changed and focus changed was changed as a result 3087 */ 3088 boolean ensureTouchMode(boolean inTouchMode) { 3089 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3090 + "touch mode is " + mAttachInfo.mInTouchMode); 3091 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3092 3093 // tell the window manager 3094 try { 3095 mWindowSession.setInTouchMode(inTouchMode); 3096 } catch (RemoteException e) { 3097 throw new RuntimeException(e); 3098 } 3099 3100 // handle the change 3101 return ensureTouchModeLocally(inTouchMode); 3102 } 3103 3104 /** 3105 * Ensure that the touch mode for this window is set, and if it is changing, 3106 * take the appropriate action. 3107 * @param inTouchMode Whether we want to be in touch mode. 3108 * @return True if the touch mode changed and focus changed was changed as a result 3109 */ 3110 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3111 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3112 + "touch mode is " + mAttachInfo.mInTouchMode); 3113 3114 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3115 3116 mAttachInfo.mInTouchMode = inTouchMode; 3117 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3118 3119 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3120 } 3121 3122 private boolean enterTouchMode() { 3123 if (mView != null) { 3124 if (mView.hasFocus()) { 3125 // note: not relying on mFocusedView here because this could 3126 // be when the window is first being added, and mFocused isn't 3127 // set yet. 3128 final View focused = mView.findFocus(); 3129 if (focused != null && !focused.isFocusableInTouchMode()) { 3130 3131 final ViewGroup ancestorToTakeFocus = 3132 findAncestorToTakeFocusInTouchMode(focused); 3133 if (ancestorToTakeFocus != null) { 3134 // there is an ancestor that wants focus after its descendants that 3135 // is focusable in touch mode.. give it focus 3136 return ancestorToTakeFocus.requestFocus(); 3137 } else { 3138 // nothing appropriate to have focus in touch mode, clear it out 3139 mView.unFocus(); 3140 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3141 mFocusedView = null; 3142 mOldFocusedView = null; 3143 return true; 3144 } 3145 } 3146 } 3147 } 3148 return false; 3149 } 3150 3151 /** 3152 * Find an ancestor of focused that wants focus after its descendants and is 3153 * focusable in touch mode. 3154 * @param focused The currently focused view. 3155 * @return An appropriate view, or null if no such view exists. 3156 */ 3157 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3158 ViewParent parent = focused.getParent(); 3159 while (parent instanceof ViewGroup) { 3160 final ViewGroup vgParent = (ViewGroup) parent; 3161 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3162 && vgParent.isFocusableInTouchMode()) { 3163 return vgParent; 3164 } 3165 if (vgParent.isRootNamespace()) { 3166 return null; 3167 } else { 3168 parent = vgParent.getParent(); 3169 } 3170 } 3171 return null; 3172 } 3173 3174 private boolean leaveTouchMode() { 3175 if (mView != null) { 3176 if (mView.hasFocus()) { 3177 // i learned the hard way to not trust mFocusedView :) 3178 mFocusedView = mView.findFocus(); 3179 if (!(mFocusedView instanceof ViewGroup)) { 3180 // some view has focus, let it keep it 3181 return false; 3182 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3183 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3184 // some view group has focus, and doesn't prefer its children 3185 // over itself for focus, so let them keep it. 3186 return false; 3187 } 3188 } 3189 3190 // find the best view to give focus to in this brave new non-touch-mode 3191 // world 3192 final View focused = focusSearch(null, View.FOCUS_DOWN); 3193 if (focused != null) { 3194 return focused.requestFocus(View.FOCUS_DOWN); 3195 } 3196 } 3197 return false; 3198 } 3199 3200 private void deliverInputEvent(QueuedInputEvent q) { 3201 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3202 try { 3203 if (q.mEvent instanceof KeyEvent) { 3204 deliverKeyEvent(q); 3205 } else { 3206 final int source = q.mEvent.getSource(); 3207 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3208 deliverPointerEvent(q); 3209 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3210 deliverTrackballEvent(q); 3211 } else { 3212 deliverGenericMotionEvent(q); 3213 } 3214 } 3215 } finally { 3216 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3217 } 3218 } 3219 3220 private void deliverPointerEvent(QueuedInputEvent q) { 3221 final MotionEvent event = (MotionEvent)q.mEvent; 3222 final boolean isTouchEvent = event.isTouchEvent(); 3223 if (mInputEventConsistencyVerifier != null) { 3224 if (isTouchEvent) { 3225 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3226 } else { 3227 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3228 } 3229 } 3230 3231 // If there is no view, then the event will not be handled. 3232 if (mView == null || !mAdded) { 3233 finishInputEvent(q, false); 3234 return; 3235 } 3236 3237 // Translate the pointer event for compatibility, if needed. 3238 if (mTranslator != null) { 3239 mTranslator.translateEventInScreenToAppWindow(event); 3240 } 3241 3242 // Enter touch mode on down or scroll. 3243 final int action = event.getAction(); 3244 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3245 ensureTouchMode(true); 3246 } 3247 3248 // Offset the scroll position. 3249 if (mCurScrollY != 0) { 3250 event.offsetLocation(0, mCurScrollY); 3251 } 3252 if (MEASURE_LATENCY) { 3253 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3254 } 3255 3256 // Remember the touch position for possible drag-initiation. 3257 if (isTouchEvent) { 3258 mLastTouchPoint.x = event.getRawX(); 3259 mLastTouchPoint.y = event.getRawY(); 3260 } 3261 3262 // Dispatch touch to view hierarchy. 3263 boolean handled = mView.dispatchPointerEvent(event); 3264 if (MEASURE_LATENCY) { 3265 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3266 } 3267 if (handled) { 3268 finishInputEvent(q, true); 3269 return; 3270 } 3271 3272 // Pointer event was unhandled. 3273 finishInputEvent(q, false); 3274 } 3275 3276 private void deliverTrackballEvent(QueuedInputEvent q) { 3277 final MotionEvent event = (MotionEvent)q.mEvent; 3278 if (mInputEventConsistencyVerifier != null) { 3279 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3280 } 3281 3282 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3283 if (LOCAL_LOGV) 3284 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3285 3286 // Dispatch to the IME before propagating down the view hierarchy. 3287 // The IME will eventually call back into handleImeFinishedEvent. 3288 if (mLastWasImTarget) { 3289 InputMethodManager imm = InputMethodManager.peekInstance(); 3290 if (imm != null) { 3291 final int seq = event.getSequenceNumber(); 3292 if (DEBUG_IMF) 3293 Log.v(TAG, "Sending trackball event to IME: seq=" 3294 + seq + " event=" + event); 3295 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3296 mInputMethodCallback); 3297 return; 3298 } 3299 } 3300 } 3301 3302 // Not dispatching to IME, continue with post IME actions. 3303 deliverTrackballEventPostIme(q); 3304 } 3305 3306 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3307 final MotionEvent event = (MotionEvent) q.mEvent; 3308 3309 // If there is no view, then the event will not be handled. 3310 if (mView == null || !mAdded) { 3311 finishInputEvent(q, false); 3312 return; 3313 } 3314 3315 // Deliver the trackball event to the view. 3316 if (mView.dispatchTrackballEvent(event)) { 3317 // If we reach this, we delivered a trackball event to mView and 3318 // mView consumed it. Because we will not translate the trackball 3319 // event into a key event, touch mode will not exit, so we exit 3320 // touch mode here. 3321 ensureTouchMode(false); 3322 3323 finishInputEvent(q, true); 3324 mLastTrackballTime = Integer.MIN_VALUE; 3325 return; 3326 } 3327 3328 // Translate the trackball event into DPAD keys and try to deliver those. 3329 final TrackballAxis x = mTrackballAxisX; 3330 final TrackballAxis y = mTrackballAxisY; 3331 3332 long curTime = SystemClock.uptimeMillis(); 3333 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3334 // It has been too long since the last movement, 3335 // so restart at the beginning. 3336 x.reset(0); 3337 y.reset(0); 3338 mLastTrackballTime = curTime; 3339 } 3340 3341 final int action = event.getAction(); 3342 final int metaState = event.getMetaState(); 3343 switch (action) { 3344 case MotionEvent.ACTION_DOWN: 3345 x.reset(2); 3346 y.reset(2); 3347 enqueueInputEvent(new KeyEvent(curTime, curTime, 3348 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3349 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3350 InputDevice.SOURCE_KEYBOARD)); 3351 break; 3352 case MotionEvent.ACTION_UP: 3353 x.reset(2); 3354 y.reset(2); 3355 enqueueInputEvent(new KeyEvent(curTime, curTime, 3356 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3357 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3358 InputDevice.SOURCE_KEYBOARD)); 3359 break; 3360 } 3361 3362 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3363 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3364 + " move=" + event.getX() 3365 + " / Y=" + y.position + " step=" 3366 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3367 + " move=" + event.getY()); 3368 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3369 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3370 3371 // Generate DPAD events based on the trackball movement. 3372 // We pick the axis that has moved the most as the direction of 3373 // the DPAD. When we generate DPAD events for one axis, then the 3374 // other axis is reset -- we don't want to perform DPAD jumps due 3375 // to slight movements in the trackball when making major movements 3376 // along the other axis. 3377 int keycode = 0; 3378 int movement = 0; 3379 float accel = 1; 3380 if (xOff > yOff) { 3381 movement = x.generate((2/event.getXPrecision())); 3382 if (movement != 0) { 3383 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3384 : KeyEvent.KEYCODE_DPAD_LEFT; 3385 accel = x.acceleration; 3386 y.reset(2); 3387 } 3388 } else if (yOff > 0) { 3389 movement = y.generate((2/event.getYPrecision())); 3390 if (movement != 0) { 3391 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3392 : KeyEvent.KEYCODE_DPAD_UP; 3393 accel = y.acceleration; 3394 x.reset(2); 3395 } 3396 } 3397 3398 if (keycode != 0) { 3399 if (movement < 0) movement = -movement; 3400 int accelMovement = (int)(movement * accel); 3401 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3402 + " accelMovement=" + accelMovement 3403 + " accel=" + accel); 3404 if (accelMovement > movement) { 3405 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3406 + keycode); 3407 movement--; 3408 int repeatCount = accelMovement - movement; 3409 enqueueInputEvent(new KeyEvent(curTime, curTime, 3410 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3411 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3412 InputDevice.SOURCE_KEYBOARD)); 3413 } 3414 while (movement > 0) { 3415 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3416 + keycode); 3417 movement--; 3418 curTime = SystemClock.uptimeMillis(); 3419 enqueueInputEvent(new KeyEvent(curTime, curTime, 3420 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3421 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3422 InputDevice.SOURCE_KEYBOARD)); 3423 enqueueInputEvent(new KeyEvent(curTime, curTime, 3424 KeyEvent.ACTION_UP, keycode, 0, metaState, 3425 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3426 InputDevice.SOURCE_KEYBOARD)); 3427 } 3428 mLastTrackballTime = curTime; 3429 } 3430 3431 // Unfortunately we can't tell whether the application consumed the keys, so 3432 // we always consider the trackball event handled. 3433 finishInputEvent(q, true); 3434 } 3435 3436 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3437 final MotionEvent event = (MotionEvent)q.mEvent; 3438 if (mInputEventConsistencyVerifier != null) { 3439 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3440 } 3441 3442 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3443 if (LOCAL_LOGV) 3444 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3445 3446 // Dispatch to the IME before propagating down the view hierarchy. 3447 // The IME will eventually call back into handleImeFinishedEvent. 3448 if (mLastWasImTarget) { 3449 InputMethodManager imm = InputMethodManager.peekInstance(); 3450 if (imm != null) { 3451 final int seq = event.getSequenceNumber(); 3452 if (DEBUG_IMF) 3453 Log.v(TAG, "Sending generic motion event to IME: seq=" 3454 + seq + " event=" + event); 3455 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3456 mInputMethodCallback); 3457 return; 3458 } 3459 } 3460 } 3461 3462 // Not dispatching to IME, continue with post IME actions. 3463 deliverGenericMotionEventPostIme(q); 3464 } 3465 3466 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3467 final MotionEvent event = (MotionEvent) q.mEvent; 3468 final boolean isJoystick = (event.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3469 3470 // If there is no view, then the event will not be handled. 3471 if (mView == null || !mAdded) { 3472 if (isJoystick) { 3473 updateJoystickDirection(event, false); 3474 } 3475 finishInputEvent(q, false); 3476 return; 3477 } 3478 3479 // Deliver the event to the view. 3480 if (mView.dispatchGenericMotionEvent(event)) { 3481 if (isJoystick) { 3482 updateJoystickDirection(event, false); 3483 } 3484 finishInputEvent(q, true); 3485 return; 3486 } 3487 3488 if (isJoystick) { 3489 // Translate the joystick event into DPAD keys and try to deliver 3490 // those. 3491 updateJoystickDirection(event, true); 3492 finishInputEvent(q, true); 3493 } else { 3494 finishInputEvent(q, false); 3495 } 3496 } 3497 3498 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3499 final long time = event.getEventTime(); 3500 final int metaState = event.getMetaState(); 3501 final int deviceId = event.getDeviceId(); 3502 final int source = event.getSource(); 3503 3504 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3505 if (xDirection == 0) { 3506 xDirection = joystickAxisValueToDirection(event.getX()); 3507 } 3508 3509 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3510 if (yDirection == 0) { 3511 yDirection = joystickAxisValueToDirection(event.getY()); 3512 } 3513 3514 if (xDirection != mLastJoystickXDirection) { 3515 if (mLastJoystickXKeyCode != 0) { 3516 enqueueInputEvent(new KeyEvent(time, time, 3517 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3518 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3519 mLastJoystickXKeyCode = 0; 3520 } 3521 3522 mLastJoystickXDirection = xDirection; 3523 3524 if (xDirection != 0 && synthesizeNewKeys) { 3525 mLastJoystickXKeyCode = xDirection > 0 3526 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3527 enqueueInputEvent(new KeyEvent(time, time, 3528 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3529 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3530 } 3531 } 3532 3533 if (yDirection != mLastJoystickYDirection) { 3534 if (mLastJoystickYKeyCode != 0) { 3535 enqueueInputEvent(new KeyEvent(time, time, 3536 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3537 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3538 mLastJoystickYKeyCode = 0; 3539 } 3540 3541 mLastJoystickYDirection = yDirection; 3542 3543 if (yDirection != 0 && synthesizeNewKeys) { 3544 mLastJoystickYKeyCode = yDirection > 0 3545 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3546 enqueueInputEvent(new KeyEvent(time, time, 3547 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3548 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3549 } 3550 } 3551 } 3552 3553 private static int joystickAxisValueToDirection(float value) { 3554 if (value >= 0.5f) { 3555 return 1; 3556 } else if (value <= -0.5f) { 3557 return -1; 3558 } else { 3559 return 0; 3560 } 3561 } 3562 3563 /** 3564 * Returns true if the key is used for keyboard navigation. 3565 * @param keyEvent The key event. 3566 * @return True if the key is used for keyboard navigation. 3567 */ 3568 private static boolean isNavigationKey(KeyEvent keyEvent) { 3569 switch (keyEvent.getKeyCode()) { 3570 case KeyEvent.KEYCODE_DPAD_LEFT: 3571 case KeyEvent.KEYCODE_DPAD_RIGHT: 3572 case KeyEvent.KEYCODE_DPAD_UP: 3573 case KeyEvent.KEYCODE_DPAD_DOWN: 3574 case KeyEvent.KEYCODE_DPAD_CENTER: 3575 case KeyEvent.KEYCODE_PAGE_UP: 3576 case KeyEvent.KEYCODE_PAGE_DOWN: 3577 case KeyEvent.KEYCODE_MOVE_HOME: 3578 case KeyEvent.KEYCODE_MOVE_END: 3579 case KeyEvent.KEYCODE_TAB: 3580 case KeyEvent.KEYCODE_SPACE: 3581 case KeyEvent.KEYCODE_ENTER: 3582 return true; 3583 } 3584 return false; 3585 } 3586 3587 /** 3588 * Returns true if the key is used for typing. 3589 * @param keyEvent The key event. 3590 * @return True if the key is used for typing. 3591 */ 3592 private static boolean isTypingKey(KeyEvent keyEvent) { 3593 return keyEvent.getUnicodeChar() > 0; 3594 } 3595 3596 /** 3597 * See if the key event means we should leave touch mode (and leave touch mode if so). 3598 * @param event The key event. 3599 * @return Whether this key event should be consumed (meaning the act of 3600 * leaving touch mode alone is considered the event). 3601 */ 3602 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3603 // Only relevant in touch mode. 3604 if (!mAttachInfo.mInTouchMode) { 3605 return false; 3606 } 3607 3608 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3609 final int action = event.getAction(); 3610 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3611 return false; 3612 } 3613 3614 // Don't leave touch mode if the IME told us not to. 3615 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3616 return false; 3617 } 3618 3619 // If the key can be used for keyboard navigation then leave touch mode 3620 // and select a focused view if needed (in ensureTouchMode). 3621 // When a new focused view is selected, we consume the navigation key because 3622 // navigation doesn't make much sense unless a view already has focus so 3623 // the key's purpose is to set focus. 3624 if (isNavigationKey(event)) { 3625 return ensureTouchMode(false); 3626 } 3627 3628 // If the key can be used for typing then leave touch mode 3629 // and select a focused view if needed (in ensureTouchMode). 3630 // Always allow the view to process the typing key. 3631 if (isTypingKey(event)) { 3632 ensureTouchMode(false); 3633 return false; 3634 } 3635 3636 return false; 3637 } 3638 3639 private void deliverKeyEvent(QueuedInputEvent q) { 3640 final KeyEvent event = (KeyEvent)q.mEvent; 3641 if (mInputEventConsistencyVerifier != null) { 3642 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3643 } 3644 3645 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3646 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3647 3648 // Perform predispatching before the IME. 3649 if (mView.dispatchKeyEventPreIme(event)) { 3650 finishInputEvent(q, true); 3651 return; 3652 } 3653 3654 // Dispatch to the IME before propagating down the view hierarchy. 3655 // The IME will eventually call back into handleImeFinishedEvent. 3656 if (mLastWasImTarget) { 3657 InputMethodManager imm = InputMethodManager.peekInstance(); 3658 if (imm != null) { 3659 final int seq = event.getSequenceNumber(); 3660 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3661 + seq + " event=" + event); 3662 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3663 return; 3664 } 3665 } 3666 } 3667 3668 // Not dispatching to IME, continue with post IME actions. 3669 deliverKeyEventPostIme(q); 3670 } 3671 3672 void handleImeFinishedEvent(int seq, boolean handled) { 3673 final QueuedInputEvent q = mCurrentInputEvent; 3674 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3675 if (DEBUG_IMF) { 3676 Log.v(TAG, "IME finished event: seq=" + seq 3677 + " handled=" + handled + " event=" + q); 3678 } 3679 if (handled) { 3680 finishInputEvent(q, true); 3681 } else { 3682 if (q.mEvent instanceof KeyEvent) { 3683 KeyEvent event = (KeyEvent)q.mEvent; 3684 if (event.getAction() != KeyEvent.ACTION_UP) { 3685 // If the window doesn't currently have input focus, then drop 3686 // this event. This could be an event that came back from the 3687 // IME dispatch but the window has lost focus in the meantime. 3688 if (!mAttachInfo.mHasWindowFocus) { 3689 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3690 finishInputEvent(q, true); 3691 return; 3692 } 3693 } 3694 deliverKeyEventPostIme(q); 3695 } else { 3696 MotionEvent event = (MotionEvent)q.mEvent; 3697 if (event.getAction() != MotionEvent.ACTION_CANCEL 3698 && event.getAction() != MotionEvent.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 final int source = q.mEvent.getSource(); 3709 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3710 deliverTrackballEventPostIme(q); 3711 } else { 3712 deliverGenericMotionEventPostIme(q); 3713 } 3714 } 3715 } 3716 } else { 3717 if (DEBUG_IMF) { 3718 Log.v(TAG, "IME finished event: seq=" + seq 3719 + " handled=" + handled + ", event not found!"); 3720 } 3721 } 3722 } 3723 3724 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3725 final KeyEvent event = (KeyEvent)q.mEvent; 3726 3727 // If the view went away, then the event will not be handled. 3728 if (mView == null || !mAdded) { 3729 finishInputEvent(q, false); 3730 return; 3731 } 3732 3733 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3734 if (checkForLeavingTouchModeAndConsume(event)) { 3735 finishInputEvent(q, true); 3736 return; 3737 } 3738 3739 // Make sure the fallback event policy sees all keys that will be delivered to the 3740 // view hierarchy. 3741 mFallbackEventHandler.preDispatchKeyEvent(event); 3742 3743 // Deliver the key to the view hierarchy. 3744 if (mView.dispatchKeyEvent(event)) { 3745 finishInputEvent(q, true); 3746 return; 3747 } 3748 3749 // If the Control modifier is held, try to interpret the key as a shortcut. 3750 if (event.getAction() == KeyEvent.ACTION_DOWN 3751 && event.isCtrlPressed() 3752 && event.getRepeatCount() == 0 3753 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3754 if (mView.dispatchKeyShortcutEvent(event)) { 3755 finishInputEvent(q, true); 3756 return; 3757 } 3758 } 3759 3760 // Apply the fallback event policy. 3761 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3762 finishInputEvent(q, true); 3763 return; 3764 } 3765 3766 // Handle automatic focus changes. 3767 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3768 int direction = 0; 3769 switch (event.getKeyCode()) { 3770 case KeyEvent.KEYCODE_DPAD_LEFT: 3771 if (event.hasNoModifiers()) { 3772 direction = View.FOCUS_LEFT; 3773 } 3774 break; 3775 case KeyEvent.KEYCODE_DPAD_RIGHT: 3776 if (event.hasNoModifiers()) { 3777 direction = View.FOCUS_RIGHT; 3778 } 3779 break; 3780 case KeyEvent.KEYCODE_DPAD_UP: 3781 if (event.hasNoModifiers()) { 3782 direction = View.FOCUS_UP; 3783 } 3784 break; 3785 case KeyEvent.KEYCODE_DPAD_DOWN: 3786 if (event.hasNoModifiers()) { 3787 direction = View.FOCUS_DOWN; 3788 } 3789 break; 3790 case KeyEvent.KEYCODE_TAB: 3791 if (event.hasNoModifiers()) { 3792 direction = View.FOCUS_FORWARD; 3793 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3794 direction = View.FOCUS_BACKWARD; 3795 } 3796 break; 3797 } 3798 if (direction != 0) { 3799 View focused = mView.findFocus(); 3800 if (focused != null) { 3801 View v = focused.focusSearch(direction); 3802 if (v != null && v != focused) { 3803 // do the math the get the interesting rect 3804 // of previous focused into the coord system of 3805 // newly focused view 3806 focused.getFocusedRect(mTempRect); 3807 if (mView instanceof ViewGroup) { 3808 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3809 focused, mTempRect); 3810 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3811 v, mTempRect); 3812 } 3813 if (v.requestFocus(direction, mTempRect)) { 3814 playSoundEffect(SoundEffectConstants 3815 .getContantForFocusDirection(direction)); 3816 finishInputEvent(q, true); 3817 return; 3818 } 3819 } 3820 3821 // Give the focused view a last chance to handle the dpad key. 3822 if (mView.dispatchUnhandledMove(focused, direction)) { 3823 finishInputEvent(q, true); 3824 return; 3825 } 3826 } 3827 } 3828 } 3829 3830 // Key was unhandled. 3831 finishInputEvent(q, false); 3832 } 3833 3834 /* drag/drop */ 3835 void setLocalDragState(Object obj) { 3836 mLocalDragState = obj; 3837 } 3838 3839 private void handleDragEvent(DragEvent event) { 3840 // From the root, only drag start/end/location are dispatched. entered/exited 3841 // are determined and dispatched by the viewgroup hierarchy, who then report 3842 // that back here for ultimate reporting back to the framework. 3843 if (mView != null && mAdded) { 3844 final int what = event.mAction; 3845 3846 if (what == DragEvent.ACTION_DRAG_EXITED) { 3847 // A direct EXITED event means that the window manager knows we've just crossed 3848 // a window boundary, so the current drag target within this one must have 3849 // just been exited. Send it the usual notifications and then we're done 3850 // for now. 3851 mView.dispatchDragEvent(event); 3852 } else { 3853 // Cache the drag description when the operation starts, then fill it in 3854 // on subsequent calls as a convenience 3855 if (what == DragEvent.ACTION_DRAG_STARTED) { 3856 mCurrentDragView = null; // Start the current-recipient tracking 3857 mDragDescription = event.mClipDescription; 3858 } else { 3859 event.mClipDescription = mDragDescription; 3860 } 3861 3862 // For events with a [screen] location, translate into window coordinates 3863 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3864 mDragPoint.set(event.mX, event.mY); 3865 if (mTranslator != null) { 3866 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3867 } 3868 3869 if (mCurScrollY != 0) { 3870 mDragPoint.offset(0, mCurScrollY); 3871 } 3872 3873 event.mX = mDragPoint.x; 3874 event.mY = mDragPoint.y; 3875 } 3876 3877 // Remember who the current drag target is pre-dispatch 3878 final View prevDragView = mCurrentDragView; 3879 3880 // Now dispatch the drag/drop event 3881 boolean result = mView.dispatchDragEvent(event); 3882 3883 // If we changed apparent drag target, tell the OS about it 3884 if (prevDragView != mCurrentDragView) { 3885 try { 3886 if (prevDragView != null) { 3887 mWindowSession.dragRecipientExited(mWindow); 3888 } 3889 if (mCurrentDragView != null) { 3890 mWindowSession.dragRecipientEntered(mWindow); 3891 } 3892 } catch (RemoteException e) { 3893 Slog.e(TAG, "Unable to note drag target change"); 3894 } 3895 } 3896 3897 // Report the drop result when we're done 3898 if (what == DragEvent.ACTION_DROP) { 3899 mDragDescription = null; 3900 try { 3901 Log.i(TAG, "Reporting drop result: " + result); 3902 mWindowSession.reportDropResult(mWindow, result); 3903 } catch (RemoteException e) { 3904 Log.e(TAG, "Unable to report drop result"); 3905 } 3906 } 3907 3908 // When the drag operation ends, release any local state object 3909 // that may have been in use 3910 if (what == DragEvent.ACTION_DRAG_ENDED) { 3911 setLocalDragState(null); 3912 } 3913 } 3914 } 3915 event.recycle(); 3916 } 3917 3918 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3919 if (mSeq != args.seq) { 3920 // The sequence has changed, so we need to update our value and make 3921 // sure to do a traversal afterward so the window manager is given our 3922 // most recent data. 3923 mSeq = args.seq; 3924 mAttachInfo.mForceReportNewAttributes = true; 3925 scheduleTraversals(); 3926 } 3927 if (mView == null) return; 3928 if (args.localChanges != 0) { 3929 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3930 } 3931 if (mAttachInfo != null) { 3932 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3933 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3934 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3935 mView.dispatchSystemUiVisibilityChanged(visibility); 3936 } 3937 } 3938 } 3939 3940 public void handleDispatchDoneAnimating() { 3941 if (mWindowsAnimating) { 3942 mWindowsAnimating = false; 3943 if (!mDirty.isEmpty() || mIsAnimating) { 3944 scheduleTraversals(); 3945 } 3946 } 3947 } 3948 3949 public void getLastTouchPoint(Point outLocation) { 3950 outLocation.x = (int) mLastTouchPoint.x; 3951 outLocation.y = (int) mLastTouchPoint.y; 3952 } 3953 3954 public void setDragFocus(View newDragTarget) { 3955 if (mCurrentDragView != newDragTarget) { 3956 mCurrentDragView = newDragTarget; 3957 } 3958 } 3959 3960 private AudioManager getAudioManager() { 3961 if (mView == null) { 3962 throw new IllegalStateException("getAudioManager called when there is no mView"); 3963 } 3964 if (mAudioManager == null) { 3965 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3966 } 3967 return mAudioManager; 3968 } 3969 3970 public AccessibilityInteractionController getAccessibilityInteractionController() { 3971 if (mView == null) { 3972 throw new IllegalStateException("getAccessibilityInteractionController" 3973 + " called when there is no mView"); 3974 } 3975 if (mAccessibilityInteractionController == null) { 3976 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3977 } 3978 return mAccessibilityInteractionController; 3979 } 3980 3981 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3982 boolean insetsPending) throws RemoteException { 3983 3984 float appScale = mAttachInfo.mApplicationScale; 3985 boolean restore = false; 3986 if (params != null && mTranslator != null) { 3987 restore = true; 3988 params.backup(); 3989 mTranslator.translateWindowLayout(params); 3990 } 3991 if (params != null) { 3992 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3993 } 3994 mPendingConfiguration.seq = 0; 3995 //Log.d(TAG, ">>>>>> CALLING relayout"); 3996 if (params != null && mOrigWindowType != params.type) { 3997 // For compatibility with old apps, don't crash here. 3998 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3999 Slog.w(TAG, "Window type can not be changed after " 4000 + "the window is added; ignoring change of " + mView); 4001 params.type = mOrigWindowType; 4002 } 4003 } 4004 int relayoutResult = mWindowSession.relayout( 4005 mWindow, mSeq, params, 4006 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4007 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4008 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4009 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 4010 mPendingConfiguration, mSurface); 4011 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4012 if (restore) { 4013 params.restore(); 4014 } 4015 4016 if (mTranslator != null) { 4017 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4018 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4019 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4020 } 4021 return relayoutResult; 4022 } 4023 4024 /** 4025 * {@inheritDoc} 4026 */ 4027 public void playSoundEffect(int effectId) { 4028 checkThread(); 4029 4030 try { 4031 final AudioManager audioManager = getAudioManager(); 4032 4033 switch (effectId) { 4034 case SoundEffectConstants.CLICK: 4035 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4036 return; 4037 case SoundEffectConstants.NAVIGATION_DOWN: 4038 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4039 return; 4040 case SoundEffectConstants.NAVIGATION_LEFT: 4041 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4042 return; 4043 case SoundEffectConstants.NAVIGATION_RIGHT: 4044 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4045 return; 4046 case SoundEffectConstants.NAVIGATION_UP: 4047 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4048 return; 4049 default: 4050 throw new IllegalArgumentException("unknown effect id " + effectId + 4051 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4052 } 4053 } catch (IllegalStateException e) { 4054 // Exception thrown by getAudioManager() when mView is null 4055 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4056 e.printStackTrace(); 4057 } 4058 } 4059 4060 /** 4061 * {@inheritDoc} 4062 */ 4063 public boolean performHapticFeedback(int effectId, boolean always) { 4064 try { 4065 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4066 } catch (RemoteException e) { 4067 return false; 4068 } 4069 } 4070 4071 /** 4072 * {@inheritDoc} 4073 */ 4074 public View focusSearch(View focused, int direction) { 4075 checkThread(); 4076 if (!(mView instanceof ViewGroup)) { 4077 return null; 4078 } 4079 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4080 } 4081 4082 public void debug() { 4083 mView.debug(); 4084 } 4085 4086 public void dumpGfxInfo(int[] info) { 4087 info[0] = info[1] = 0; 4088 if (mView != null) { 4089 getGfxInfo(mView, info); 4090 } 4091 } 4092 4093 private static void getGfxInfo(View view, int[] info) { 4094 DisplayList displayList = view.mDisplayList; 4095 info[0]++; 4096 if (displayList != null) { 4097 info[1] += displayList.getSize(); 4098 } 4099 4100 if (view instanceof ViewGroup) { 4101 ViewGroup group = (ViewGroup) view; 4102 4103 int count = group.getChildCount(); 4104 for (int i = 0; i < count; i++) { 4105 getGfxInfo(group.getChildAt(i), info); 4106 } 4107 } 4108 } 4109 4110 public void die(boolean immediate) { 4111 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4112 // done by dispatchDetachedFromWindow will cause havoc on return. 4113 if (immediate && !mIsInTraversal) { 4114 doDie(); 4115 } else { 4116 if (!mIsDrawing) { 4117 destroyHardwareRenderer(); 4118 } else { 4119 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4120 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4121 } 4122 mHandler.sendEmptyMessage(MSG_DIE); 4123 } 4124 } 4125 4126 void doDie() { 4127 checkThread(); 4128 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4129 synchronized (this) { 4130 if (mAdded) { 4131 dispatchDetachedFromWindow(); 4132 } 4133 4134 if (mAdded && !mFirst) { 4135 destroyHardwareRenderer(); 4136 4137 if (mView != null) { 4138 int viewVisibility = mView.getVisibility(); 4139 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4140 if (mWindowAttributesChanged || viewVisibilityChanged) { 4141 // If layout params have been changed, first give them 4142 // to the window manager to make sure it has the correct 4143 // animation info. 4144 try { 4145 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4146 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4147 mWindowSession.finishDrawing(mWindow); 4148 } 4149 } catch (RemoteException e) { 4150 } 4151 } 4152 4153 mSurface.release(); 4154 } 4155 } 4156 4157 mAdded = false; 4158 } 4159 } 4160 4161 public void requestUpdateConfiguration(Configuration config) { 4162 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4163 mHandler.sendMessage(msg); 4164 } 4165 4166 public void loadSystemProperties() { 4167 boolean layout = SystemProperties.getBoolean( 4168 View.DEBUG_LAYOUT_PROPERTY, false); 4169 if (layout != mAttachInfo.mDebugLayout) { 4170 mAttachInfo.mDebugLayout = layout; 4171 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4172 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4173 } 4174 } 4175 } 4176 4177 private void destroyHardwareRenderer() { 4178 AttachInfo attachInfo = mAttachInfo; 4179 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4180 4181 if (hardwareRenderer != null) { 4182 if (mView != null) { 4183 hardwareRenderer.destroyHardwareResources(mView); 4184 } 4185 hardwareRenderer.destroy(true); 4186 hardwareRenderer.setRequested(false); 4187 4188 attachInfo.mHardwareRenderer = null; 4189 attachInfo.mHardwareAccelerated = false; 4190 } 4191 } 4192 4193 void dispatchImeFinishedEvent(int seq, boolean handled) { 4194 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4195 msg.arg1 = seq; 4196 msg.arg2 = handled ? 1 : 0; 4197 msg.setAsynchronous(true); 4198 mHandler.sendMessage(msg); 4199 } 4200 4201 public void dispatchFinishInputConnection(InputConnection connection) { 4202 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4203 mHandler.sendMessage(msg); 4204 } 4205 4206 public void dispatchResized(Rect frame, Rect contentInsets, 4207 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4208 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4209 + " contentInsets=" + contentInsets.toShortString() 4210 + " visibleInsets=" + visibleInsets.toShortString() 4211 + " reportDraw=" + reportDraw); 4212 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4213 if (mTranslator != null) { 4214 mTranslator.translateRectInScreenToAppWindow(frame); 4215 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4216 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4217 } 4218 SomeArgs args = SomeArgs.obtain(); 4219 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4220 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4221 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4222 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4223 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4224 msg.obj = args; 4225 mHandler.sendMessage(msg); 4226 } 4227 4228 public void dispatchMoved(int newX, int newY) { 4229 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4230 if (mTranslator != null) { 4231 PointF point = new PointF(newX, newY); 4232 mTranslator.translatePointInScreenToAppWindow(point); 4233 newX = (int) (point.x + 0.5); 4234 newY = (int) (point.y + 0.5); 4235 } 4236 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4237 mHandler.sendMessage(msg); 4238 } 4239 4240 /** 4241 * Represents a pending input event that is waiting in a queue. 4242 * 4243 * Input events are processed in serial order by the timestamp specified by 4244 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4245 * one input event to the application at a time and waits for the application 4246 * to finish handling it before delivering the next one. 4247 * 4248 * However, because the application or IME can synthesize and inject multiple 4249 * key events at a time without going through the input dispatcher, we end up 4250 * needing a queue on the application's side. 4251 */ 4252 private static final class QueuedInputEvent { 4253 public static final int FLAG_DELIVER_POST_IME = 1; 4254 4255 public QueuedInputEvent mNext; 4256 4257 public InputEvent mEvent; 4258 public InputEventReceiver mReceiver; 4259 public int mFlags; 4260 } 4261 4262 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4263 InputEventReceiver receiver, int flags) { 4264 QueuedInputEvent q = mQueuedInputEventPool; 4265 if (q != null) { 4266 mQueuedInputEventPoolSize -= 1; 4267 mQueuedInputEventPool = q.mNext; 4268 q.mNext = null; 4269 } else { 4270 q = new QueuedInputEvent(); 4271 } 4272 4273 q.mEvent = event; 4274 q.mReceiver = receiver; 4275 q.mFlags = flags; 4276 return q; 4277 } 4278 4279 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4280 q.mEvent = null; 4281 q.mReceiver = null; 4282 4283 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4284 mQueuedInputEventPoolSize += 1; 4285 q.mNext = mQueuedInputEventPool; 4286 mQueuedInputEventPool = q; 4287 } 4288 } 4289 4290 void enqueueInputEvent(InputEvent event) { 4291 enqueueInputEvent(event, null, 0, false); 4292 } 4293 4294 void enqueueInputEvent(InputEvent event, 4295 InputEventReceiver receiver, int flags, boolean processImmediately) { 4296 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4297 4298 // Always enqueue the input event in order, regardless of its time stamp. 4299 // We do this because the application or the IME may inject key events 4300 // in response to touch events and we want to ensure that the injected keys 4301 // are processed in the order they were received and we cannot trust that 4302 // the time stamp of injected events are monotonic. 4303 QueuedInputEvent last = mFirstPendingInputEvent; 4304 if (last == null) { 4305 mFirstPendingInputEvent = q; 4306 } else { 4307 while (last.mNext != null) { 4308 last = last.mNext; 4309 } 4310 last.mNext = q; 4311 } 4312 4313 if (processImmediately) { 4314 doProcessInputEvents(); 4315 } else { 4316 scheduleProcessInputEvents(); 4317 } 4318 } 4319 4320 private void scheduleProcessInputEvents() { 4321 if (!mProcessInputEventsScheduled) { 4322 mProcessInputEventsScheduled = true; 4323 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4324 msg.setAsynchronous(true); 4325 mHandler.sendMessage(msg); 4326 } 4327 } 4328 4329 void doProcessInputEvents() { 4330 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4331 QueuedInputEvent q = mFirstPendingInputEvent; 4332 mFirstPendingInputEvent = q.mNext; 4333 q.mNext = null; 4334 mCurrentInputEvent = q; 4335 deliverInputEvent(q); 4336 } 4337 4338 // We are done processing all input events that we can process right now 4339 // so we can clear the pending flag immediately. 4340 if (mProcessInputEventsScheduled) { 4341 mProcessInputEventsScheduled = false; 4342 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4343 } 4344 } 4345 4346 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4347 if (q != mCurrentInputEvent) { 4348 throw new IllegalStateException("finished input event out of order"); 4349 } 4350 4351 if (q.mReceiver != null) { 4352 q.mReceiver.finishInputEvent(q.mEvent, handled); 4353 } else { 4354 q.mEvent.recycleIfNeededAfterDispatch(); 4355 } 4356 4357 recycleQueuedInputEvent(q); 4358 4359 mCurrentInputEvent = null; 4360 if (mFirstPendingInputEvent != null) { 4361 scheduleProcessInputEvents(); 4362 } 4363 } 4364 4365 void scheduleConsumeBatchedInput() { 4366 if (!mConsumeBatchedInputScheduled) { 4367 mConsumeBatchedInputScheduled = true; 4368 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4369 mConsumedBatchedInputRunnable, null); 4370 } 4371 } 4372 4373 void unscheduleConsumeBatchedInput() { 4374 if (mConsumeBatchedInputScheduled) { 4375 mConsumeBatchedInputScheduled = false; 4376 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4377 mConsumedBatchedInputRunnable, null); 4378 } 4379 } 4380 4381 void doConsumeBatchedInput(long frameTimeNanos) { 4382 if (mConsumeBatchedInputScheduled) { 4383 mConsumeBatchedInputScheduled = false; 4384 if (mInputEventReceiver != null) { 4385 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4386 } 4387 doProcessInputEvents(); 4388 } 4389 } 4390 4391 final class TraversalRunnable implements Runnable { 4392 @Override 4393 public void run() { 4394 doTraversal(); 4395 } 4396 } 4397 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4398 4399 final class WindowInputEventReceiver extends InputEventReceiver { 4400 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4401 super(inputChannel, looper); 4402 } 4403 4404 @Override 4405 public void onInputEvent(InputEvent event) { 4406 enqueueInputEvent(event, this, 0, true); 4407 } 4408 4409 @Override 4410 public void onBatchedInputEventPending() { 4411 scheduleConsumeBatchedInput(); 4412 } 4413 4414 @Override 4415 public void dispose() { 4416 unscheduleConsumeBatchedInput(); 4417 super.dispose(); 4418 } 4419 } 4420 WindowInputEventReceiver mInputEventReceiver; 4421 4422 final class ConsumeBatchedInputRunnable implements Runnable { 4423 @Override 4424 public void run() { 4425 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4426 } 4427 } 4428 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4429 new ConsumeBatchedInputRunnable(); 4430 boolean mConsumeBatchedInputScheduled; 4431 4432 final class InvalidateOnAnimationRunnable implements Runnable { 4433 private boolean mPosted; 4434 private ArrayList<View> mViews = new ArrayList<View>(); 4435 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4436 new ArrayList<AttachInfo.InvalidateInfo>(); 4437 private View[] mTempViews; 4438 private AttachInfo.InvalidateInfo[] mTempViewRects; 4439 4440 public void addView(View view) { 4441 synchronized (this) { 4442 mViews.add(view); 4443 postIfNeededLocked(); 4444 } 4445 } 4446 4447 public void addViewRect(AttachInfo.InvalidateInfo info) { 4448 synchronized (this) { 4449 mViewRects.add(info); 4450 postIfNeededLocked(); 4451 } 4452 } 4453 4454 public void removeView(View view) { 4455 synchronized (this) { 4456 mViews.remove(view); 4457 4458 for (int i = mViewRects.size(); i-- > 0; ) { 4459 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4460 if (info.target == view) { 4461 mViewRects.remove(i); 4462 info.release(); 4463 } 4464 } 4465 4466 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4467 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4468 mPosted = false; 4469 } 4470 } 4471 } 4472 4473 @Override 4474 public void run() { 4475 final int viewCount; 4476 final int viewRectCount; 4477 synchronized (this) { 4478 mPosted = false; 4479 4480 viewCount = mViews.size(); 4481 if (viewCount != 0) { 4482 mTempViews = mViews.toArray(mTempViews != null 4483 ? mTempViews : new View[viewCount]); 4484 mViews.clear(); 4485 } 4486 4487 viewRectCount = mViewRects.size(); 4488 if (viewRectCount != 0) { 4489 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4490 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4491 mViewRects.clear(); 4492 } 4493 } 4494 4495 for (int i = 0; i < viewCount; i++) { 4496 mTempViews[i].invalidate(); 4497 mTempViews[i] = null; 4498 } 4499 4500 for (int i = 0; i < viewRectCount; i++) { 4501 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4502 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4503 info.release(); 4504 } 4505 } 4506 4507 private void postIfNeededLocked() { 4508 if (!mPosted) { 4509 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4510 mPosted = true; 4511 } 4512 } 4513 } 4514 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4515 new InvalidateOnAnimationRunnable(); 4516 4517 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4518 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4519 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4520 } 4521 4522 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4523 long delayMilliseconds) { 4524 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4525 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4526 } 4527 4528 public void dispatchInvalidateOnAnimation(View view) { 4529 mInvalidateOnAnimationRunnable.addView(view); 4530 } 4531 4532 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4533 mInvalidateOnAnimationRunnable.addViewRect(info); 4534 } 4535 4536 public void enqueueDisplayList(DisplayList displayList) { 4537 mDisplayLists.add(displayList); 4538 4539 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4540 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4541 mHandler.sendMessage(msg); 4542 } 4543 4544 public void dequeueDisplayList(DisplayList displayList) { 4545 if (mDisplayLists.remove(displayList)) { 4546 displayList.invalidate(); 4547 if (mDisplayLists.size() == 0) { 4548 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4549 } 4550 } 4551 } 4552 4553 public void cancelInvalidate(View view) { 4554 mHandler.removeMessages(MSG_INVALIDATE, view); 4555 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4556 // them to the pool 4557 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4558 mInvalidateOnAnimationRunnable.removeView(view); 4559 } 4560 4561 public void dispatchKey(KeyEvent event) { 4562 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4563 msg.setAsynchronous(true); 4564 mHandler.sendMessage(msg); 4565 } 4566 4567 public void dispatchKeyFromIme(KeyEvent event) { 4568 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4569 msg.setAsynchronous(true); 4570 mHandler.sendMessage(msg); 4571 } 4572 4573 public void dispatchUnhandledKey(KeyEvent event) { 4574 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4575 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4576 final int keyCode = event.getKeyCode(); 4577 final int metaState = event.getMetaState(); 4578 4579 // Check for fallback actions specified by the key character map. 4580 KeyCharacterMap.FallbackAction fallbackAction = 4581 kcm.getFallbackAction(keyCode, metaState); 4582 if (fallbackAction != null) { 4583 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4584 KeyEvent fallbackEvent = KeyEvent.obtain( 4585 event.getDownTime(), event.getEventTime(), 4586 event.getAction(), fallbackAction.keyCode, 4587 event.getRepeatCount(), fallbackAction.metaState, 4588 event.getDeviceId(), event.getScanCode(), 4589 flags, event.getSource(), null); 4590 fallbackAction.recycle(); 4591 4592 dispatchKey(fallbackEvent); 4593 } 4594 } 4595 } 4596 4597 public void dispatchAppVisibility(boolean visible) { 4598 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4599 msg.arg1 = visible ? 1 : 0; 4600 mHandler.sendMessage(msg); 4601 } 4602 4603 public void dispatchScreenStateChange(boolean on) { 4604 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4605 msg.arg1 = on ? 1 : 0; 4606 mHandler.sendMessage(msg); 4607 } 4608 4609 public void dispatchGetNewSurface() { 4610 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4611 mHandler.sendMessage(msg); 4612 } 4613 4614 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4615 Message msg = Message.obtain(); 4616 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4617 msg.arg1 = hasFocus ? 1 : 0; 4618 msg.arg2 = inTouchMode ? 1 : 0; 4619 mHandler.sendMessage(msg); 4620 } 4621 4622 public void dispatchCloseSystemDialogs(String reason) { 4623 Message msg = Message.obtain(); 4624 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4625 msg.obj = reason; 4626 mHandler.sendMessage(msg); 4627 } 4628 4629 public void dispatchDragEvent(DragEvent event) { 4630 final int what; 4631 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4632 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4633 mHandler.removeMessages(what); 4634 } else { 4635 what = MSG_DISPATCH_DRAG_EVENT; 4636 } 4637 Message msg = mHandler.obtainMessage(what, event); 4638 mHandler.sendMessage(msg); 4639 } 4640 4641 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4642 int localValue, int localChanges) { 4643 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4644 args.seq = seq; 4645 args.globalVisibility = globalVisibility; 4646 args.localValue = localValue; 4647 args.localChanges = localChanges; 4648 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4649 } 4650 4651 public void dispatchDoneAnimating() { 4652 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4653 } 4654 4655 public void dispatchCheckFocus() { 4656 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4657 // This will result in a call to checkFocus() below. 4658 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4659 } 4660 } 4661 4662 /** 4663 * Post a callback to send a 4664 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4665 * This event is send at most once every 4666 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4667 */ 4668 private void postSendWindowContentChangedCallback(View source) { 4669 if (mSendWindowContentChangedAccessibilityEvent == null) { 4670 mSendWindowContentChangedAccessibilityEvent = 4671 new SendWindowContentChangedAccessibilityEvent(); 4672 } 4673 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4674 if (oldSource == null) { 4675 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4676 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4677 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4678 } else { 4679 mSendWindowContentChangedAccessibilityEvent.mSource = 4680 getCommonPredecessor(oldSource, source); 4681 } 4682 } 4683 4684 /** 4685 * Remove a posted callback to send a 4686 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4687 */ 4688 private void removeSendWindowContentChangedCallback() { 4689 if (mSendWindowContentChangedAccessibilityEvent != null) { 4690 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4691 } 4692 } 4693 4694 public boolean showContextMenuForChild(View originalView) { 4695 return false; 4696 } 4697 4698 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4699 return null; 4700 } 4701 4702 public void createContextMenu(ContextMenu menu) { 4703 } 4704 4705 public void childDrawableStateChanged(View child) { 4706 } 4707 4708 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4709 if (mView == null) { 4710 return false; 4711 } 4712 // Intercept accessibility focus events fired by virtual nodes to keep 4713 // track of accessibility focus position in such nodes. 4714 final int eventType = event.getEventType(); 4715 switch (eventType) { 4716 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4717 final long sourceNodeId = event.getSourceNodeId(); 4718 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4719 sourceNodeId); 4720 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4721 if (source != null) { 4722 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4723 if (provider != null) { 4724 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4725 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4726 setAccessibilityFocus(source, node); 4727 } 4728 } 4729 } break; 4730 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 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 setAccessibilityFocus(null, null); 4739 } 4740 } 4741 } break; 4742 } 4743 mAccessibilityManager.sendAccessibilityEvent(event); 4744 return true; 4745 } 4746 4747 @Override 4748 public void childAccessibilityStateChanged(View child) { 4749 postSendWindowContentChangedCallback(child); 4750 } 4751 4752 private View getCommonPredecessor(View first, View second) { 4753 if (mAttachInfo != null) { 4754 if (mTempHashSet == null) { 4755 mTempHashSet = new HashSet<View>(); 4756 } 4757 HashSet<View> seen = mTempHashSet; 4758 seen.clear(); 4759 View firstCurrent = first; 4760 while (firstCurrent != null) { 4761 seen.add(firstCurrent); 4762 ViewParent firstCurrentParent = firstCurrent.mParent; 4763 if (firstCurrentParent instanceof View) { 4764 firstCurrent = (View) firstCurrentParent; 4765 } else { 4766 firstCurrent = null; 4767 } 4768 } 4769 View secondCurrent = second; 4770 while (secondCurrent != null) { 4771 if (seen.contains(secondCurrent)) { 4772 seen.clear(); 4773 return secondCurrent; 4774 } 4775 ViewParent secondCurrentParent = secondCurrent.mParent; 4776 if (secondCurrentParent instanceof View) { 4777 secondCurrent = (View) secondCurrentParent; 4778 } else { 4779 secondCurrent = null; 4780 } 4781 } 4782 seen.clear(); 4783 } 4784 return null; 4785 } 4786 4787 void checkThread() { 4788 if (mThread != Thread.currentThread()) { 4789 throw new CalledFromWrongThreadException( 4790 "Only the original thread that created a view hierarchy can touch its views."); 4791 } 4792 } 4793 4794 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4795 // ViewAncestor never intercepts touch event, so this can be a no-op 4796 } 4797 4798 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4799 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4800 if (rectangle != null) { 4801 mTempRect.set(rectangle); 4802 mTempRect.offset(0, -mCurScrollY); 4803 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4804 try { 4805 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4806 } catch (RemoteException re) { 4807 /* ignore */ 4808 } 4809 } 4810 return scrolled; 4811 } 4812 4813 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4814 // Do nothing. 4815 } 4816 4817 class TakenSurfaceHolder extends BaseSurfaceHolder { 4818 @Override 4819 public boolean onAllowLockCanvas() { 4820 return mDrawingAllowed; 4821 } 4822 4823 @Override 4824 public void onRelayoutContainer() { 4825 // Not currently interesting -- from changing between fixed and layout size. 4826 } 4827 4828 public void setFormat(int format) { 4829 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4830 } 4831 4832 public void setType(int type) { 4833 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4834 } 4835 4836 @Override 4837 public void onUpdateSurface() { 4838 // We take care of format and type changes on our own. 4839 throw new IllegalStateException("Shouldn't be here"); 4840 } 4841 4842 public boolean isCreating() { 4843 return mIsCreating; 4844 } 4845 4846 @Override 4847 public void setFixedSize(int width, int height) { 4848 throw new UnsupportedOperationException( 4849 "Currently only support sizing from layout"); 4850 } 4851 4852 public void setKeepScreenOn(boolean screenOn) { 4853 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4854 } 4855 } 4856 4857 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4858 private WeakReference<ViewRootImpl> mViewAncestor; 4859 4860 public InputMethodCallback(ViewRootImpl viewAncestor) { 4861 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4862 } 4863 4864 @Override 4865 public void finishedEvent(int seq, boolean handled) { 4866 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4867 if (viewAncestor != null) { 4868 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4869 } 4870 } 4871 } 4872 4873 static class W extends IWindow.Stub { 4874 private final WeakReference<ViewRootImpl> mViewAncestor; 4875 private final IWindowSession mWindowSession; 4876 4877 W(ViewRootImpl viewAncestor) { 4878 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4879 mWindowSession = viewAncestor.mWindowSession; 4880 } 4881 4882 public void resized(Rect frame, Rect contentInsets, 4883 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4884 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4885 if (viewAncestor != null) { 4886 viewAncestor.dispatchResized(frame, contentInsets, 4887 visibleInsets, reportDraw, newConfig); 4888 } 4889 } 4890 4891 @Override 4892 public void moved(int newX, int newY) { 4893 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4894 if (viewAncestor != null) { 4895 viewAncestor.dispatchMoved(newX, newY); 4896 } 4897 } 4898 4899 public void dispatchAppVisibility(boolean visible) { 4900 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4901 if (viewAncestor != null) { 4902 viewAncestor.dispatchAppVisibility(visible); 4903 } 4904 } 4905 4906 public void dispatchScreenState(boolean on) { 4907 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4908 if (viewAncestor != null) { 4909 viewAncestor.dispatchScreenStateChange(on); 4910 } 4911 } 4912 4913 public void dispatchGetNewSurface() { 4914 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4915 if (viewAncestor != null) { 4916 viewAncestor.dispatchGetNewSurface(); 4917 } 4918 } 4919 4920 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4921 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4922 if (viewAncestor != null) { 4923 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4924 } 4925 } 4926 4927 private static int checkCallingPermission(String permission) { 4928 try { 4929 return ActivityManagerNative.getDefault().checkPermission( 4930 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4931 } catch (RemoteException e) { 4932 return PackageManager.PERMISSION_DENIED; 4933 } 4934 } 4935 4936 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4937 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4938 if (viewAncestor != null) { 4939 final View view = viewAncestor.mView; 4940 if (view != null) { 4941 if (checkCallingPermission(Manifest.permission.DUMP) != 4942 PackageManager.PERMISSION_GRANTED) { 4943 throw new SecurityException("Insufficient permissions to invoke" 4944 + " executeCommand() from pid=" + Binder.getCallingPid() 4945 + ", uid=" + Binder.getCallingUid()); 4946 } 4947 4948 OutputStream clientStream = null; 4949 try { 4950 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4951 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4952 } catch (IOException e) { 4953 e.printStackTrace(); 4954 } finally { 4955 if (clientStream != null) { 4956 try { 4957 clientStream.close(); 4958 } catch (IOException e) { 4959 e.printStackTrace(); 4960 } 4961 } 4962 } 4963 } 4964 } 4965 } 4966 4967 public void closeSystemDialogs(String reason) { 4968 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4969 if (viewAncestor != null) { 4970 viewAncestor.dispatchCloseSystemDialogs(reason); 4971 } 4972 } 4973 4974 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4975 boolean sync) { 4976 if (sync) { 4977 try { 4978 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4979 } catch (RemoteException e) { 4980 } 4981 } 4982 } 4983 4984 public void dispatchWallpaperCommand(String action, int x, int y, 4985 int z, Bundle extras, boolean sync) { 4986 if (sync) { 4987 try { 4988 mWindowSession.wallpaperCommandComplete(asBinder(), null); 4989 } catch (RemoteException e) { 4990 } 4991 } 4992 } 4993 4994 /* Drag/drop */ 4995 public void dispatchDragEvent(DragEvent event) { 4996 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4997 if (viewAncestor != null) { 4998 viewAncestor.dispatchDragEvent(event); 4999 } 5000 } 5001 5002 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5003 int localValue, int localChanges) { 5004 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5005 if (viewAncestor != null) { 5006 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5007 localValue, localChanges); 5008 } 5009 } 5010 5011 public void doneAnimating() { 5012 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5013 if (viewAncestor != null) { 5014 viewAncestor.dispatchDoneAnimating(); 5015 } 5016 } 5017 } 5018 5019 /** 5020 * Maintains state information for a single trackball axis, generating 5021 * discrete (DPAD) movements based on raw trackball motion. 5022 */ 5023 static final class TrackballAxis { 5024 /** 5025 * The maximum amount of acceleration we will apply. 5026 */ 5027 static final float MAX_ACCELERATION = 20; 5028 5029 /** 5030 * The maximum amount of time (in milliseconds) between events in order 5031 * for us to consider the user to be doing fast trackball movements, 5032 * and thus apply an acceleration. 5033 */ 5034 static final long FAST_MOVE_TIME = 150; 5035 5036 /** 5037 * Scaling factor to the time (in milliseconds) between events to how 5038 * much to multiple/divide the current acceleration. When movement 5039 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5040 * FAST_MOVE_TIME it divides it. 5041 */ 5042 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5043 5044 float position; 5045 float absPosition; 5046 float acceleration = 1; 5047 long lastMoveTime = 0; 5048 int step; 5049 int dir; 5050 int nonAccelMovement; 5051 5052 void reset(int _step) { 5053 position = 0; 5054 acceleration = 1; 5055 lastMoveTime = 0; 5056 step = _step; 5057 dir = 0; 5058 } 5059 5060 /** 5061 * Add trackball movement into the state. If the direction of movement 5062 * has been reversed, the state is reset before adding the 5063 * movement (so that you don't have to compensate for any previously 5064 * collected movement before see the result of the movement in the 5065 * new direction). 5066 * 5067 * @return Returns the absolute value of the amount of movement 5068 * collected so far. 5069 */ 5070 float collect(float off, long time, String axis) { 5071 long normTime; 5072 if (off > 0) { 5073 normTime = (long)(off * FAST_MOVE_TIME); 5074 if (dir < 0) { 5075 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5076 position = 0; 5077 step = 0; 5078 acceleration = 1; 5079 lastMoveTime = 0; 5080 } 5081 dir = 1; 5082 } else if (off < 0) { 5083 normTime = (long)((-off) * FAST_MOVE_TIME); 5084 if (dir > 0) { 5085 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5086 position = 0; 5087 step = 0; 5088 acceleration = 1; 5089 lastMoveTime = 0; 5090 } 5091 dir = -1; 5092 } else { 5093 normTime = 0; 5094 } 5095 5096 // The number of milliseconds between each movement that is 5097 // considered "normal" and will not result in any acceleration 5098 // or deceleration, scaled by the offset we have here. 5099 if (normTime > 0) { 5100 long delta = time - lastMoveTime; 5101 lastMoveTime = time; 5102 float acc = acceleration; 5103 if (delta < normTime) { 5104 // The user is scrolling rapidly, so increase acceleration. 5105 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5106 if (scale > 1) acc *= scale; 5107 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5108 + off + " normTime=" + normTime + " delta=" + delta 5109 + " scale=" + scale + " acc=" + acc); 5110 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5111 } else { 5112 // The user is scrolling slowly, so decrease acceleration. 5113 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5114 if (scale > 1) acc /= scale; 5115 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5116 + off + " normTime=" + normTime + " delta=" + delta 5117 + " scale=" + scale + " acc=" + acc); 5118 acceleration = acc > 1 ? acc : 1; 5119 } 5120 } 5121 position += off; 5122 return (absPosition = Math.abs(position)); 5123 } 5124 5125 /** 5126 * Generate the number of discrete movement events appropriate for 5127 * the currently collected trackball movement. 5128 * 5129 * @param precision The minimum movement required to generate the 5130 * first discrete movement. 5131 * 5132 * @return Returns the number of discrete movements, either positive 5133 * or negative, or 0 if there is not enough trackball movement yet 5134 * for a discrete movement. 5135 */ 5136 int generate(float precision) { 5137 int movement = 0; 5138 nonAccelMovement = 0; 5139 do { 5140 final int dir = position >= 0 ? 1 : -1; 5141 switch (step) { 5142 // If we are going to execute the first step, then we want 5143 // to do this as soon as possible instead of waiting for 5144 // a full movement, in order to make things look responsive. 5145 case 0: 5146 if (absPosition < precision) { 5147 return movement; 5148 } 5149 movement += dir; 5150 nonAccelMovement += dir; 5151 step = 1; 5152 break; 5153 // If we have generated the first movement, then we need 5154 // to wait for the second complete trackball motion before 5155 // generating the second discrete movement. 5156 case 1: 5157 if (absPosition < 2) { 5158 return movement; 5159 } 5160 movement += dir; 5161 nonAccelMovement += dir; 5162 position += dir > 0 ? -2 : 2; 5163 absPosition = Math.abs(position); 5164 step = 2; 5165 break; 5166 // After the first two, we generate discrete movements 5167 // consistently with the trackball, applying an acceleration 5168 // if the trackball is moving quickly. This is a simple 5169 // acceleration on top of what we already compute based 5170 // on how quickly the wheel is being turned, to apply 5171 // a longer increasing acceleration to continuous movement 5172 // in one direction. 5173 default: 5174 if (absPosition < 1) { 5175 return movement; 5176 } 5177 movement += dir; 5178 position += dir >= 0 ? -1 : 1; 5179 absPosition = Math.abs(position); 5180 float acc = acceleration; 5181 acc *= 1.1f; 5182 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5183 break; 5184 } 5185 } while (true); 5186 } 5187 } 5188 5189 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5190 public CalledFromWrongThreadException(String msg) { 5191 super(msg); 5192 } 5193 } 5194 5195 private SurfaceHolder mHolder = new SurfaceHolder() { 5196 // we only need a SurfaceHolder for opengl. it would be nice 5197 // to implement everything else though, especially the callback 5198 // support (opengl doesn't make use of it right now, but eventually 5199 // will). 5200 public Surface getSurface() { 5201 return mSurface; 5202 } 5203 5204 public boolean isCreating() { 5205 return false; 5206 } 5207 5208 public void addCallback(Callback callback) { 5209 } 5210 5211 public void removeCallback(Callback callback) { 5212 } 5213 5214 public void setFixedSize(int width, int height) { 5215 } 5216 5217 public void setSizeFromLayout() { 5218 } 5219 5220 public void setFormat(int format) { 5221 } 5222 5223 public void setType(int type) { 5224 } 5225 5226 public void setKeepScreenOn(boolean screenOn) { 5227 } 5228 5229 public Canvas lockCanvas() { 5230 return null; 5231 } 5232 5233 public Canvas lockCanvas(Rect dirty) { 5234 return null; 5235 } 5236 5237 public void unlockCanvasAndPost(Canvas canvas) { 5238 } 5239 public Rect getSurfaceFrame() { 5240 return null; 5241 } 5242 }; 5243 5244 static RunQueue getRunQueue() { 5245 RunQueue rq = sRunQueues.get(); 5246 if (rq != null) { 5247 return rq; 5248 } 5249 rq = new RunQueue(); 5250 sRunQueues.set(rq); 5251 return rq; 5252 } 5253 5254 /** 5255 * The run queue is used to enqueue pending work from Views when no Handler is 5256 * attached. The work is executed during the next call to performTraversals on 5257 * the thread. 5258 * @hide 5259 */ 5260 static final class RunQueue { 5261 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5262 5263 void post(Runnable action) { 5264 postDelayed(action, 0); 5265 } 5266 5267 void postDelayed(Runnable action, long delayMillis) { 5268 HandlerAction handlerAction = new HandlerAction(); 5269 handlerAction.action = action; 5270 handlerAction.delay = delayMillis; 5271 5272 synchronized (mActions) { 5273 mActions.add(handlerAction); 5274 } 5275 } 5276 5277 void removeCallbacks(Runnable action) { 5278 final HandlerAction handlerAction = new HandlerAction(); 5279 handlerAction.action = action; 5280 5281 synchronized (mActions) { 5282 final ArrayList<HandlerAction> actions = mActions; 5283 5284 while (actions.remove(handlerAction)) { 5285 // Keep going 5286 } 5287 } 5288 } 5289 5290 void executeActions(Handler handler) { 5291 synchronized (mActions) { 5292 final ArrayList<HandlerAction> actions = mActions; 5293 final int count = actions.size(); 5294 5295 for (int i = 0; i < count; i++) { 5296 final HandlerAction handlerAction = actions.get(i); 5297 handler.postDelayed(handlerAction.action, handlerAction.delay); 5298 } 5299 5300 actions.clear(); 5301 } 5302 } 5303 5304 private static class HandlerAction { 5305 Runnable action; 5306 long delay; 5307 5308 @Override 5309 public boolean equals(Object o) { 5310 if (this == o) return true; 5311 if (o == null || getClass() != o.getClass()) return false; 5312 5313 HandlerAction that = (HandlerAction) o; 5314 return !(action != null ? !action.equals(that.action) : that.action != null); 5315 5316 } 5317 5318 @Override 5319 public int hashCode() { 5320 int result = action != null ? action.hashCode() : 0; 5321 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5322 return result; 5323 } 5324 } 5325 } 5326 5327 /** 5328 * Class for managing the accessibility interaction connection 5329 * based on the global accessibility state. 5330 */ 5331 final class AccessibilityInteractionConnectionManager 5332 implements AccessibilityStateChangeListener { 5333 public void onAccessibilityStateChanged(boolean enabled) { 5334 if (enabled) { 5335 ensureConnection(); 5336 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5337 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5338 View focusedView = mView.findFocus(); 5339 if (focusedView != null && focusedView != mView) { 5340 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5341 } 5342 } 5343 } else { 5344 ensureNoConnection(); 5345 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5346 } 5347 } 5348 5349 public void ensureConnection() { 5350 if (mAttachInfo != null) { 5351 final boolean registered = 5352 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5353 if (!registered) { 5354 mAttachInfo.mAccessibilityWindowId = 5355 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5356 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5357 } 5358 } 5359 } 5360 5361 public void ensureNoConnection() { 5362 final boolean registered = 5363 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5364 if (registered) { 5365 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5366 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5367 } 5368 } 5369 } 5370 5371 /** 5372 * This class is an interface this ViewAncestor provides to the 5373 * AccessibilityManagerService to the latter can interact with 5374 * the view hierarchy in this ViewAncestor. 5375 */ 5376 static final class AccessibilityInteractionConnection 5377 extends IAccessibilityInteractionConnection.Stub { 5378 private final WeakReference<ViewRootImpl> mViewRootImpl; 5379 5380 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5381 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5382 } 5383 5384 @Override 5385 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5386 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5387 int interrogatingPid, long interrogatingTid) { 5388 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5389 if (viewRootImpl != null && viewRootImpl.mView != null) { 5390 viewRootImpl.getAccessibilityInteractionController() 5391 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5392 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5393 } else { 5394 // We cannot make the call and notify the caller so it does not wait. 5395 try { 5396 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5397 } catch (RemoteException re) { 5398 /* best effort - ignore */ 5399 } 5400 } 5401 } 5402 5403 @Override 5404 public void performAccessibilityAction(long accessibilityNodeId, int action, 5405 Bundle arguments, int interactionId, 5406 IAccessibilityInteractionConnectionCallback callback, int flags, 5407 int interogatingPid, long interrogatingTid) { 5408 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5409 if (viewRootImpl != null && viewRootImpl.mView != null) { 5410 viewRootImpl.getAccessibilityInteractionController() 5411 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5412 interactionId, callback, flags, interogatingPid, interrogatingTid); 5413 } else { 5414 // We cannot make the call and notify the caller so it does not wait. 5415 try { 5416 callback.setPerformAccessibilityActionResult(false, interactionId); 5417 } catch (RemoteException re) { 5418 /* best effort - ignore */ 5419 } 5420 } 5421 } 5422 5423 @Override 5424 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5425 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5426 int interrogatingPid, long interrogatingTid) { 5427 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5428 if (viewRootImpl != null && viewRootImpl.mView != null) { 5429 viewRootImpl.getAccessibilityInteractionController() 5430 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5431 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5432 } else { 5433 // We cannot make the call and notify the caller so it does not wait. 5434 try { 5435 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5436 } catch (RemoteException re) { 5437 /* best effort - ignore */ 5438 } 5439 } 5440 } 5441 5442 @Override 5443 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5444 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5445 int interrogatingPid, long interrogatingTid) { 5446 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5447 if (viewRootImpl != null && viewRootImpl.mView != null) { 5448 viewRootImpl.getAccessibilityInteractionController() 5449 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5450 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5451 } else { 5452 // We cannot make the call and notify the caller so it does not wait. 5453 try { 5454 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5455 } catch (RemoteException re) { 5456 /* best effort - ignore */ 5457 } 5458 } 5459 } 5460 5461 @Override 5462 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5463 IAccessibilityInteractionConnectionCallback callback, int flags, 5464 int interrogatingPid, long interrogatingTid) { 5465 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5466 if (viewRootImpl != null && viewRootImpl.mView != null) { 5467 viewRootImpl.getAccessibilityInteractionController() 5468 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5469 flags, interrogatingPid, interrogatingTid); 5470 } else { 5471 // We cannot make the call and notify the caller so it does not wait. 5472 try { 5473 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5474 } catch (RemoteException re) { 5475 /* best effort - ignore */ 5476 } 5477 } 5478 } 5479 5480 @Override 5481 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5482 IAccessibilityInteractionConnectionCallback callback, int flags, 5483 int interrogatingPid, long interrogatingTid) { 5484 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5485 if (viewRootImpl != null && viewRootImpl.mView != null) { 5486 viewRootImpl.getAccessibilityInteractionController() 5487 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5488 callback, flags, interrogatingPid, interrogatingTid); 5489 } else { 5490 // We cannot make the call and notify the caller so it does not wait. 5491 try { 5492 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5493 } catch (RemoteException re) { 5494 /* best effort - ignore */ 5495 } 5496 } 5497 } 5498 } 5499 5500 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5501 public View mSource; 5502 5503 public void run() { 5504 if (mSource != null) { 5505 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5506 mSource.resetAccessibilityStateChanged(); 5507 mSource = null; 5508 } 5509 } 5510 } 5511} 5512