ViewRootImpl.java revision 22a94cb03ad39c5256608e4954fe4e85179d9ed6
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 129 130 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 131 static boolean sFirstDrawComplete = false; 132 133 static final ArrayList<ComponentCallbacks> sConfigCallbacks 134 = new ArrayList<ComponentCallbacks>(); 135 136 private static boolean sUseRenderThread = false; 137 private static boolean sRenderThreadQueried = false; 138 private static final Object[] sRenderThreadQueryLock = new Object[0]; 139 140 final IWindowSession mWindowSession; 141 final Display mDisplay; 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 final SimulatedTrackball mSimulatedTrackball; 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 final int mTargetSdkVersion; 168 169 int mSeq; 170 171 View mView; 172 173 View mAccessibilityFocusedHost; 174 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 175 176 int mViewVisibility; 177 boolean mAppVisible = true; 178 int mOrigWindowType = -1; 179 180 // Set to true if the owner of this window is in the stopped state, 181 // so the window should no longer be active. 182 boolean mStopped = false; 183 184 boolean mLastInCompatMode = false; 185 186 SurfaceHolder.Callback2 mSurfaceHolderCallback; 187 BaseSurfaceHolder mSurfaceHolder; 188 boolean mIsCreating; 189 boolean mDrawingAllowed; 190 191 final Region mTransparentRegion; 192 final Region mPreviousTransparentRegion; 193 194 int mWidth; 195 int mHeight; 196 Rect mDirty; 197 final Rect mCurrentDirty = new Rect(); 198 final Rect mPreviousDirty = new Rect(); 199 boolean mIsAnimating; 200 201 CompatibilityInfo.Translator mTranslator; 202 203 final View.AttachInfo mAttachInfo; 204 InputChannel mInputChannel; 205 InputQueue.Callback mInputQueueCallback; 206 InputQueue mInputQueue; 207 FallbackEventHandler mFallbackEventHandler; 208 Choreographer mChoreographer; 209 210 final Rect mTempRect; // used in the transaction to not thrash the heap. 211 final Rect mVisRect; // used to retrieve visible rect of focused view. 212 213 boolean mTraversalScheduled; 214 int mTraversalBarrier; 215 boolean mWillDrawSoon; 216 /** Set to true while in performTraversals for detecting when die(true) is called from internal 217 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 218 boolean mIsInTraversal; 219 boolean mFitSystemWindowsRequested; 220 boolean mLayoutRequested; 221 boolean mFirst; 222 boolean mReportNextDraw; 223 boolean mFullRedrawNeeded; 224 boolean mNewSurfaceNeeded; 225 boolean mHasHadWindowFocus; 226 boolean mLastWasImTarget; 227 boolean mWindowsAnimating; 228 boolean mIsDrawing; 229 int mLastSystemUiVisibility; 230 int mClientWindowLayoutFlags; 231 232 /** @hide */ 233 public static final int EVENT_NOT_HANDLED = 0; 234 /** @hide */ 235 public static final int EVENT_HANDLED = 1; 236 /** @hide */ 237 public static final int EVENT_IN_PROGRESS = 2; 238 239 // Pool of queued input events. 240 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 241 private QueuedInputEvent mQueuedInputEventPool; 242 private int mQueuedInputEventPoolSize; 243 244 // Input event queue. 245 QueuedInputEvent mFirstPendingInputEvent; 246 QueuedInputEvent mCurrentInputEvent; 247 boolean mProcessInputEventsScheduled; 248 249 boolean mWindowAttributesChanged = false; 250 int mWindowAttributesChangesFlag = 0; 251 252 // These can be accessed by any thread, must be protected with a lock. 253 // Surface can never be reassigned or cleared (use Surface.clear()). 254 private final Surface mSurface = new Surface(); 255 256 boolean mAdded; 257 boolean mAddedTouchMode; 258 259 final CompatibilityInfoHolder mCompatibilityInfo; 260 261 // These are accessed by multiple threads. 262 final Rect mWinFrame; // frame given by window manager. 263 264 final Rect mPendingVisibleInsets = new Rect(); 265 final Rect mPendingContentInsets = new Rect(); 266 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 267 = new ViewTreeObserver.InternalInsetsInfo(); 268 269 final Rect mFitSystemWindowsInsets = new Rect(); 270 271 final Configuration mLastConfiguration = new Configuration(); 272 final Configuration mPendingConfiguration = new Configuration(); 273 274 boolean mScrollMayChange; 275 int mSoftInputMode; 276 WeakReference<View> mLastScrolledFocus; 277 int mScrollY; 278 int mCurScrollY; 279 Scroller mScroller; 280 HardwareLayer mResizeBuffer; 281 long mResizeBufferStartTime; 282 int mResizeBufferDuration; 283 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 284 private ArrayList<LayoutTransition> mPendingTransitions; 285 286 final ViewConfiguration mViewConfiguration; 287 288 /* Drag/drop */ 289 ClipDescription mDragDescription; 290 View mCurrentDragView; 291 volatile Object mLocalDragState; 292 final PointF mDragPoint = new PointF(); 293 final PointF mLastTouchPoint = new PointF(); 294 295 private boolean mProfileRendering; 296 private Choreographer.FrameCallback mRenderProfiler; 297 private boolean mRenderProfilingEnabled; 298 299 // Variables to track frames per second, enabled via DEBUG_FPS flag 300 private long mFpsStartTime = -1; 301 private long mFpsPrevTime = -1; 302 private int mFpsNumFrames; 303 304 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 305 306 /** 307 * see {@link #playSoundEffect(int)} 308 */ 309 AudioManager mAudioManager; 310 311 final AccessibilityManager mAccessibilityManager; 312 313 AccessibilityInteractionController mAccessibilityInteractionController; 314 315 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 316 317 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 318 319 HashSet<View> mTempHashSet; 320 321 private final int mDensity; 322 private final int mNoncompatDensity; 323 324 private boolean mInLayout = false; 325 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 326 boolean mHandlingLayoutInLayoutRequest = false; 327 328 private int mViewLayoutDirectionInitial; 329 330 /** 331 * Consistency verifier for debugging purposes. 332 */ 333 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 334 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 335 new InputEventConsistencyVerifier(this, 0) : null; 336 337 static final class SystemUiVisibilityInfo { 338 int seq; 339 int globalVisibility; 340 int localValue; 341 int localChanges; 342 } 343 344 public ViewRootImpl(Context context, Display display) { 345 super(); 346 347 if (MEASURE_LATENCY) { 348 if (lt == null) { 349 lt = new LatencyTimer(100, 1000); 350 } 351 } 352 353 // Initialize the statics when this class is first instantiated. This is 354 // done here instead of in the static block because Zygote does not 355 // allow the spawning of threads. 356 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 357 mDisplay = display; 358 359 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 360 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 361 362 mThread = Thread.currentThread(); 363 mLocation = new WindowLeaked(null); 364 mLocation.fillInStackTrace(); 365 mWidth = -1; 366 mHeight = -1; 367 mDirty = new Rect(); 368 mTempRect = new Rect(); 369 mVisRect = new Rect(); 370 mWinFrame = new Rect(); 371 mWindow = new W(this); 372 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 373 mInputMethodCallback = new InputMethodCallback(this); 374 mViewVisibility = View.GONE; 375 mTransparentRegion = new Region(); 376 mPreviousTransparentRegion = new Region(); 377 mFirst = true; // true for the first time the view is added 378 mAdded = false; 379 mAccessibilityManager = AccessibilityManager.getInstance(context); 380 mAccessibilityInteractionConnectionManager = 381 new AccessibilityInteractionConnectionManager(); 382 mAccessibilityManager.addAccessibilityStateChangeListener( 383 mAccessibilityInteractionConnectionManager); 384 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 385 mViewConfiguration = ViewConfiguration.get(context); 386 mDensity = context.getResources().getDisplayMetrics().densityDpi; 387 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 388 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 389 mChoreographer = Choreographer.getInstance(); 390 391 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 392 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 393 loadSystemProperties(); 394 mSimulatedTrackball = new SimulatedTrackball(context); 395 } 396 397 /** 398 * @return True if the application requests the use of a separate render thread, 399 * false otherwise 400 */ 401 private static boolean isRenderThreadRequested(Context context) { 402 if (USE_RENDER_THREAD) { 403 synchronized (sRenderThreadQueryLock) { 404 if (!sRenderThreadQueried) { 405 final PackageManager packageManager = context.getPackageManager(); 406 final String packageName = context.getApplicationInfo().packageName; 407 try { 408 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 409 PackageManager.GET_META_DATA); 410 if (applicationInfo.metaData != null) { 411 sUseRenderThread = applicationInfo.metaData.getBoolean( 412 "android.graphics.renderThread", false); 413 } 414 } catch (PackageManager.NameNotFoundException e) { 415 } finally { 416 sRenderThreadQueried = true; 417 } 418 } 419 return sUseRenderThread; 420 } 421 } else { 422 return false; 423 } 424 } 425 426 public static void addFirstDrawHandler(Runnable callback) { 427 synchronized (sFirstDrawHandlers) { 428 if (!sFirstDrawComplete) { 429 sFirstDrawHandlers.add(callback); 430 } 431 } 432 } 433 434 public static void addConfigCallback(ComponentCallbacks callback) { 435 synchronized (sConfigCallbacks) { 436 sConfigCallbacks.add(callback); 437 } 438 } 439 440 // FIXME for perf testing only 441 private boolean mProfile = false; 442 443 /** 444 * Call this to profile the next traversal call. 445 * FIXME for perf testing only. Remove eventually 446 */ 447 public void profile() { 448 mProfile = true; 449 } 450 451 /** 452 * Indicates whether we are in touch mode. Calling this method triggers an IPC 453 * call and should be avoided whenever possible. 454 * 455 * @return True, if the device is in touch mode, false otherwise. 456 * 457 * @hide 458 */ 459 static boolean isInTouchMode() { 460 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 461 if (windowSession != null) { 462 try { 463 return windowSession.getInTouchMode(); 464 } catch (RemoteException e) { 465 } 466 } 467 return false; 468 } 469 470 /** 471 * We have one child 472 */ 473 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 474 synchronized (this) { 475 if (mView == null) { 476 mView = view; 477 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 478 mFallbackEventHandler.setView(view); 479 mWindowAttributes.copyFrom(attrs); 480 attrs = mWindowAttributes; 481 // Keep track of the actual window flags supplied by the client. 482 mClientWindowLayoutFlags = attrs.flags; 483 484 setAccessibilityFocus(null, null); 485 486 if (view instanceof RootViewSurfaceTaker) { 487 mSurfaceHolderCallback = 488 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 489 if (mSurfaceHolderCallback != null) { 490 mSurfaceHolder = new TakenSurfaceHolder(); 491 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 492 } 493 } 494 495 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 496 mTranslator = compatibilityInfo.getTranslator(); 497 498 // If the application owns the surface, don't enable hardware acceleration 499 if (mSurfaceHolder == null) { 500 enableHardwareAcceleration(mView.getContext(), attrs); 501 } 502 503 boolean restore = false; 504 if (mTranslator != null) { 505 mSurface.setCompatibilityTranslator(mTranslator); 506 restore = true; 507 attrs.backup(); 508 mTranslator.translateWindowLayout(attrs); 509 } 510 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 511 512 if (!compatibilityInfo.supportsScreen()) { 513 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 514 mLastInCompatMode = true; 515 } 516 517 mSoftInputMode = attrs.softInputMode; 518 mWindowAttributesChanged = true; 519 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 520 mAttachInfo.mRootView = view; 521 mAttachInfo.mScalingRequired = mTranslator != null; 522 mAttachInfo.mApplicationScale = 523 mTranslator == null ? 1.0f : mTranslator.applicationScale; 524 if (panelParentView != null) { 525 mAttachInfo.mPanelParentWindowToken 526 = panelParentView.getApplicationWindowToken(); 527 } 528 mAdded = true; 529 int res; /* = WindowManagerImpl.ADD_OKAY; */ 530 531 // Schedule the first layout -before- adding to the window 532 // manager, to make sure we do the relayout before receiving 533 // any other events from the system. 534 requestLayout(); 535 if ((mWindowAttributes.inputFeatures 536 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 537 mInputChannel = new InputChannel(); 538 } 539 try { 540 mOrigWindowType = mWindowAttributes.type; 541 mAttachInfo.mRecomputeGlobalAttributes = true; 542 collectViewAttributes(); 543 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 544 getHostVisibility(), mDisplay.getDisplayId(), 545 mAttachInfo.mContentInsets, mInputChannel); 546 } catch (RemoteException e) { 547 mAdded = false; 548 mView = null; 549 mAttachInfo.mRootView = null; 550 mInputChannel = null; 551 mFallbackEventHandler.setView(null); 552 unscheduleTraversals(); 553 setAccessibilityFocus(null, null); 554 throw new RuntimeException("Adding window failed", e); 555 } finally { 556 if (restore) { 557 attrs.restore(); 558 } 559 } 560 561 if (mTranslator != null) { 562 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 563 } 564 mPendingContentInsets.set(mAttachInfo.mContentInsets); 565 mPendingVisibleInsets.set(0, 0, 0, 0); 566 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 567 if (res < WindowManagerGlobal.ADD_OKAY) { 568 mAttachInfo.mRootView = null; 569 mAdded = false; 570 mFallbackEventHandler.setView(null); 571 unscheduleTraversals(); 572 setAccessibilityFocus(null, null); 573 switch (res) { 574 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 575 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 576 throw new WindowManager.BadTokenException( 577 "Unable to add window -- token " + attrs.token 578 + " is not valid; is your activity running?"); 579 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 580 throw new WindowManager.BadTokenException( 581 "Unable to add window -- token " + attrs.token 582 + " is not for an application"); 583 case WindowManagerGlobal.ADD_APP_EXITING: 584 throw new WindowManager.BadTokenException( 585 "Unable to add window -- app for token " + attrs.token 586 + " is exiting"); 587 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 588 throw new WindowManager.BadTokenException( 589 "Unable to add window -- window " + mWindow 590 + " has already been added"); 591 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 592 // Silently ignore -- we would have just removed it 593 // right away, anyway. 594 return; 595 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 596 throw new WindowManager.BadTokenException( 597 "Unable to add window " + mWindow + 598 " -- another window of this type already exists"); 599 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 600 throw new WindowManager.BadTokenException( 601 "Unable to add window " + mWindow + 602 " -- permission denied for this window type"); 603 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 604 throw new WindowManager.InvalidDisplayException( 605 "Unable to add window " + mWindow + 606 " -- the specified display can not be found"); 607 } 608 throw new RuntimeException( 609 "Unable to add window -- unknown error code " + res); 610 } 611 612 if (view instanceof RootViewSurfaceTaker) { 613 mInputQueueCallback = 614 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 615 } 616 if (mInputChannel != null) { 617 if (mInputQueueCallback != null) { 618 mInputQueue = new InputQueue(mInputChannel); 619 mInputQueueCallback.onInputQueueCreated(mInputQueue); 620 } else { 621 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 622 Looper.myLooper()); 623 } 624 } 625 626 view.assignParent(this); 627 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 628 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 629 630 if (mAccessibilityManager.isEnabled()) { 631 mAccessibilityInteractionConnectionManager.ensureConnection(); 632 } 633 634 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 635 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 636 } 637 } 638 } 639 } 640 641 void destroyHardwareResources() { 642 if (mAttachInfo.mHardwareRenderer != null) { 643 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 644 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 645 } 646 mAttachInfo.mHardwareRenderer.destroy(false); 647 } 648 } 649 650 void terminateHardwareResources() { 651 if (mAttachInfo.mHardwareRenderer != null) { 652 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 653 mAttachInfo.mHardwareRenderer.destroy(false); 654 } 655 } 656 657 void destroyHardwareLayers() { 658 if (mThread != Thread.currentThread()) { 659 if (mAttachInfo.mHardwareRenderer != null && 660 mAttachInfo.mHardwareRenderer.isEnabled()) { 661 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 662 } 663 } else { 664 if (mAttachInfo.mHardwareRenderer != null && 665 mAttachInfo.mHardwareRenderer.isEnabled()) { 666 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 667 } 668 } 669 } 670 671 void pushHardwareLayerUpdate(HardwareLayer layer) { 672 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 673 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 674 } 675 } 676 677 public boolean attachFunctor(int functor) { 678 //noinspection SimplifiableIfStatement 679 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 680 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 681 } 682 return false; 683 } 684 685 public void detachFunctor(int functor) { 686 if (mAttachInfo.mHardwareRenderer != null) { 687 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 688 } 689 } 690 691 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 692 mAttachInfo.mHardwareAccelerated = false; 693 mAttachInfo.mHardwareAccelerationRequested = false; 694 695 // Don't enable hardware acceleration when the application is in compatibility mode 696 if (mTranslator != null) return; 697 698 // Try to enable hardware acceleration if requested 699 final boolean hardwareAccelerated = 700 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 701 702 if (hardwareAccelerated) { 703 if (!HardwareRenderer.isAvailable()) { 704 return; 705 } 706 707 // Persistent processes (including the system) should not do 708 // accelerated rendering on low-end devices. In that case, 709 // sRendererDisabled will be set. In addition, the system process 710 // itself should never do accelerated rendering. In that case, both 711 // sRendererDisabled and sSystemRendererDisabled are set. When 712 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 713 // can be used by code on the system process to escape that and enable 714 // HW accelerated drawing. (This is basically for the lock screen.) 715 716 final boolean fakeHwAccelerated = (attrs.privateFlags & 717 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 718 final boolean forceHwAccelerated = (attrs.privateFlags & 719 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 720 721 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 722 && forceHwAccelerated)) { 723 // Don't enable hardware acceleration when we're not on the main thread 724 if (!HardwareRenderer.sSystemRendererDisabled && 725 Looper.getMainLooper() != Looper.myLooper()) { 726 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 727 + "acceleration outside of the main thread, aborting"); 728 return; 729 } 730 731 final boolean renderThread = isRenderThreadRequested(context); 732 if (renderThread) { 733 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 734 } 735 736 if (mAttachInfo.mHardwareRenderer != null) { 737 mAttachInfo.mHardwareRenderer.destroy(true); 738 } 739 740 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 741 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 742 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 743 = mAttachInfo.mHardwareRenderer != null; 744 745 } else if (fakeHwAccelerated) { 746 // The window had wanted to use hardware acceleration, but this 747 // is not allowed in its process. By setting this flag, it can 748 // still render as if it was accelerated. This is basically for 749 // the preview windows the window manager shows for launching 750 // applications, so they will look more like the app being launched. 751 mAttachInfo.mHardwareAccelerationRequested = true; 752 } 753 } 754 } 755 756 public View getView() { 757 return mView; 758 } 759 760 final WindowLeaked getLocation() { 761 return mLocation; 762 } 763 764 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 765 synchronized (this) { 766 int oldSoftInputMode = mWindowAttributes.softInputMode; 767 // Keep track of the actual window flags supplied by the client. 768 mClientWindowLayoutFlags = attrs.flags; 769 // preserve compatible window flag if exists. 770 int compatibleWindowFlag = 771 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 772 // transfer over system UI visibility values as they carry current state. 773 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 774 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 775 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 776 mWindowAttributes.flags |= compatibleWindowFlag; 777 778 applyKeepScreenOnFlag(mWindowAttributes); 779 780 if (newView) { 781 mSoftInputMode = attrs.softInputMode; 782 requestLayout(); 783 } 784 // Don't lose the mode we last auto-computed. 785 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 786 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 787 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 788 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 789 | (oldSoftInputMode 790 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 791 } 792 mWindowAttributesChanged = true; 793 scheduleTraversals(); 794 } 795 } 796 797 void handleAppVisibility(boolean visible) { 798 if (mAppVisible != visible) { 799 mAppVisible = visible; 800 scheduleTraversals(); 801 } 802 } 803 804 void handleGetNewSurface() { 805 mNewSurfaceNeeded = true; 806 mFullRedrawNeeded = true; 807 scheduleTraversals(); 808 } 809 810 void handleScreenStateChange(boolean on) { 811 if (on != mAttachInfo.mScreenOn) { 812 mAttachInfo.mScreenOn = on; 813 if (mView != null) { 814 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 815 } 816 if (on) { 817 mFullRedrawNeeded = true; 818 scheduleTraversals(); 819 } 820 } 821 } 822 823 @Override 824 public void requestFitSystemWindows() { 825 checkThread(); 826 mFitSystemWindowsRequested = true; 827 scheduleTraversals(); 828 } 829 830 @Override 831 public void requestLayout() { 832 if (!mHandlingLayoutInLayoutRequest) { 833 checkThread(); 834 mLayoutRequested = true; 835 scheduleTraversals(); 836 } 837 } 838 839 @Override 840 public boolean isLayoutRequested() { 841 return mLayoutRequested; 842 } 843 844 void invalidate() { 845 mDirty.set(0, 0, mWidth, mHeight); 846 scheduleTraversals(); 847 } 848 849 void invalidateWorld(View view) { 850 view.invalidate(); 851 if (view instanceof ViewGroup) { 852 ViewGroup parent = (ViewGroup) view; 853 for (int i = 0; i < parent.getChildCount(); i++) { 854 invalidateWorld(parent.getChildAt(i)); 855 } 856 } 857 } 858 859 @Override 860 public void invalidateChild(View child, Rect dirty) { 861 invalidateChildInParent(null, dirty); 862 } 863 864 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 865 checkThread(); 866 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 867 868 if (dirty == null) { 869 invalidate(); 870 return null; 871 } else if (dirty.isEmpty() && !mIsAnimating) { 872 return null; 873 } 874 875 if (mCurScrollY != 0 || mTranslator != null) { 876 mTempRect.set(dirty); 877 dirty = mTempRect; 878 if (mCurScrollY != 0) { 879 dirty.offset(0, -mCurScrollY); 880 } 881 if (mTranslator != null) { 882 mTranslator.translateRectInAppWindowToScreen(dirty); 883 } 884 if (mAttachInfo.mScalingRequired) { 885 dirty.inset(-1, -1); 886 } 887 } 888 889 final Rect localDirty = mDirty; 890 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 891 mAttachInfo.mSetIgnoreDirtyState = true; 892 mAttachInfo.mIgnoreDirtyState = true; 893 } 894 895 // Add the new dirty rect to the current one 896 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 897 // Intersect with the bounds of the window to skip 898 // updates that lie outside of the visible region 899 final float appScale = mAttachInfo.mApplicationScale; 900 final boolean intersected = localDirty.intersect(0, 0, 901 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 902 if (!intersected) { 903 localDirty.setEmpty(); 904 } 905 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 906 scheduleTraversals(); 907 } 908 909 return null; 910 } 911 912 void setStopped(boolean stopped) { 913 if (mStopped != stopped) { 914 mStopped = stopped; 915 if (!stopped) { 916 scheduleTraversals(); 917 } 918 } 919 } 920 921 public ViewParent getParent() { 922 return null; 923 } 924 925 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 926 if (child != mView) { 927 throw new RuntimeException("child is not mine, honest!"); 928 } 929 // Note: don't apply scroll offset, because we want to know its 930 // visibility in the virtual canvas being given to the view hierarchy. 931 return r.intersect(0, 0, mWidth, mHeight); 932 } 933 934 public void bringChildToFront(View child) { 935 } 936 937 int getHostVisibility() { 938 return mAppVisible ? mView.getVisibility() : View.GONE; 939 } 940 941 void disposeResizeBuffer() { 942 if (mResizeBuffer != null) { 943 mResizeBuffer.destroy(); 944 mResizeBuffer = null; 945 } 946 } 947 948 /** 949 * Add LayoutTransition to the list of transitions to be started in the next traversal. 950 * This list will be cleared after the transitions on the list are start()'ed. These 951 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 952 * happens during the layout phase of traversal, which we want to complete before any of the 953 * animations are started (because those animations may side-effect properties that layout 954 * depends upon, like the bounding rectangles of the affected views). So we add the transition 955 * to the list and it is started just prior to starting the drawing phase of traversal. 956 * 957 * @param transition The LayoutTransition to be started on the next traversal. 958 * 959 * @hide 960 */ 961 public void requestTransitionStart(LayoutTransition transition) { 962 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 963 if (mPendingTransitions == null) { 964 mPendingTransitions = new ArrayList<LayoutTransition>(); 965 } 966 mPendingTransitions.add(transition); 967 } 968 } 969 970 void scheduleTraversals() { 971 if (!mTraversalScheduled) { 972 mTraversalScheduled = true; 973 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 974 mChoreographer.postCallback( 975 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 976 scheduleConsumeBatchedInput(); 977 } 978 } 979 980 void unscheduleTraversals() { 981 if (mTraversalScheduled) { 982 mTraversalScheduled = false; 983 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 984 mChoreographer.removeCallbacks( 985 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 986 } 987 } 988 989 void doTraversal() { 990 if (mTraversalScheduled) { 991 mTraversalScheduled = false; 992 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 993 994 if (mProfile) { 995 Debug.startMethodTracing("ViewAncestor"); 996 } 997 998 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 999 try { 1000 performTraversals(); 1001 } finally { 1002 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1003 } 1004 1005 if (mProfile) { 1006 Debug.stopMethodTracing(); 1007 mProfile = false; 1008 } 1009 } 1010 } 1011 1012 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1013 // Update window's global keep screen on flag: if a view has requested 1014 // that the screen be kept on, then it is always set; otherwise, it is 1015 // set to whatever the client last requested for the global state. 1016 if (mAttachInfo.mKeepScreenOn) { 1017 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1018 } else { 1019 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1020 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1021 } 1022 } 1023 1024 private boolean collectViewAttributes() { 1025 final View.AttachInfo attachInfo = mAttachInfo; 1026 if (attachInfo.mRecomputeGlobalAttributes) { 1027 //Log.i(TAG, "Computing view hierarchy attributes!"); 1028 attachInfo.mRecomputeGlobalAttributes = false; 1029 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1030 attachInfo.mKeepScreenOn = false; 1031 attachInfo.mSystemUiVisibility = 0; 1032 attachInfo.mHasSystemUiListeners = false; 1033 mView.dispatchCollectViewAttributes(attachInfo, 0); 1034 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1035 WindowManager.LayoutParams params = mWindowAttributes; 1036 if (attachInfo.mKeepScreenOn != oldScreenOn 1037 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1038 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1039 applyKeepScreenOnFlag(params); 1040 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1041 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1042 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1043 return true; 1044 } 1045 } 1046 return false; 1047 } 1048 1049 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1050 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1051 int childWidthMeasureSpec; 1052 int childHeightMeasureSpec; 1053 boolean windowSizeMayChange = false; 1054 1055 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1056 "Measuring " + host + " in display " + desiredWindowWidth 1057 + "x" + desiredWindowHeight + "..."); 1058 1059 boolean goodMeasure = false; 1060 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1061 // On large screens, we don't want to allow dialogs to just 1062 // stretch to fill the entire width of the screen to display 1063 // one line of text. First try doing the layout at a smaller 1064 // size to see if it will fit. 1065 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1066 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1067 int baseSize = 0; 1068 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1069 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1070 } 1071 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1072 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1073 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1074 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1075 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1076 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1077 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1078 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1079 goodMeasure = true; 1080 } else { 1081 // Didn't fit in that size... try expanding a bit. 1082 baseSize = (baseSize+desiredWindowWidth)/2; 1083 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1084 + baseSize); 1085 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1086 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1087 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1088 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1089 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1090 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1091 goodMeasure = true; 1092 } 1093 } 1094 } 1095 } 1096 1097 if (!goodMeasure) { 1098 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1099 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1100 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1101 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1102 windowSizeMayChange = true; 1103 } 1104 } 1105 1106 if (DBG) { 1107 System.out.println("======================================"); 1108 System.out.println("performTraversals -- after measure"); 1109 host.debug(); 1110 } 1111 1112 return windowSizeMayChange; 1113 } 1114 1115 private void performTraversals() { 1116 // cache mView since it is used so much below... 1117 final View host = mView; 1118 1119 if (DBG) { 1120 System.out.println("======================================"); 1121 System.out.println("performTraversals"); 1122 host.debug(); 1123 } 1124 1125 if (host == null || !mAdded) 1126 return; 1127 1128 mIsInTraversal = true; 1129 mWillDrawSoon = true; 1130 boolean windowSizeMayChange = false; 1131 boolean newSurface = false; 1132 boolean surfaceChanged = false; 1133 WindowManager.LayoutParams lp = mWindowAttributes; 1134 1135 int desiredWindowWidth; 1136 int desiredWindowHeight; 1137 1138 final View.AttachInfo attachInfo = mAttachInfo; 1139 1140 final int viewVisibility = getHostVisibility(); 1141 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1142 || mNewSurfaceNeeded; 1143 1144 WindowManager.LayoutParams params = null; 1145 if (mWindowAttributesChanged) { 1146 mWindowAttributesChanged = false; 1147 surfaceChanged = true; 1148 params = lp; 1149 } 1150 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1151 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1152 params = lp; 1153 mFullRedrawNeeded = true; 1154 mLayoutRequested = true; 1155 if (mLastInCompatMode) { 1156 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1157 mLastInCompatMode = false; 1158 } else { 1159 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1160 mLastInCompatMode = true; 1161 } 1162 } 1163 1164 mWindowAttributesChangesFlag = 0; 1165 1166 Rect frame = mWinFrame; 1167 if (mFirst) { 1168 mFullRedrawNeeded = true; 1169 mLayoutRequested = true; 1170 1171 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1172 // NOTE -- system code, won't try to do compat mode. 1173 Point size = new Point(); 1174 mDisplay.getRealSize(size); 1175 desiredWindowWidth = size.x; 1176 desiredWindowHeight = size.y; 1177 } else { 1178 DisplayMetrics packageMetrics = 1179 mView.getContext().getResources().getDisplayMetrics(); 1180 desiredWindowWidth = packageMetrics.widthPixels; 1181 desiredWindowHeight = packageMetrics.heightPixels; 1182 } 1183 1184 // For the very first time, tell the view hierarchy that it 1185 // is attached to the window. Note that at this point the surface 1186 // object is not initialized to its backing store, but soon it 1187 // will be (assuming the window is visible). 1188 attachInfo.mSurface = mSurface; 1189 // We used to use the following condition to choose 32 bits drawing caches: 1190 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1191 // However, windows are now always 32 bits by default, so choose 32 bits 1192 attachInfo.mUse32BitDrawingCache = true; 1193 attachInfo.mHasWindowFocus = false; 1194 attachInfo.mWindowVisibility = viewVisibility; 1195 attachInfo.mRecomputeGlobalAttributes = false; 1196 viewVisibilityChanged = false; 1197 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1198 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1199 // Set the layout direction if it has not been set before (inherit is the default) 1200 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1201 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1202 } 1203 host.dispatchAttachedToWindow(attachInfo, 0); 1204 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1205 host.fitSystemWindows(mFitSystemWindowsInsets); 1206 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1207 1208 } else { 1209 desiredWindowWidth = frame.width(); 1210 desiredWindowHeight = frame.height(); 1211 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1212 if (DEBUG_ORIENTATION) Log.v(TAG, 1213 "View " + host + " resized to: " + frame); 1214 mFullRedrawNeeded = true; 1215 mLayoutRequested = true; 1216 windowSizeMayChange = true; 1217 } 1218 } 1219 1220 if (viewVisibilityChanged) { 1221 attachInfo.mWindowVisibility = viewVisibility; 1222 host.dispatchWindowVisibilityChanged(viewVisibility); 1223 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1224 destroyHardwareResources(); 1225 } 1226 if (viewVisibility == View.GONE) { 1227 // After making a window gone, we will count it as being 1228 // shown for the first time the next time it gets focus. 1229 mHasHadWindowFocus = false; 1230 } 1231 } 1232 1233 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1234 getRunQueue().executeActions(attachInfo.mHandler); 1235 1236 boolean insetsChanged = false; 1237 1238 boolean layoutRequested = mLayoutRequested && !mStopped; 1239 if (layoutRequested) { 1240 1241 final Resources res = mView.getContext().getResources(); 1242 1243 if (mFirst) { 1244 // make sure touch mode code executes by setting cached value 1245 // to opposite of the added touch mode. 1246 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1247 ensureTouchModeLocally(mAddedTouchMode); 1248 } else { 1249 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1250 insetsChanged = true; 1251 } 1252 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1253 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1254 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1255 + mAttachInfo.mVisibleInsets); 1256 } 1257 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1258 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1259 windowSizeMayChange = true; 1260 1261 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1262 // NOTE -- system code, won't try to do compat mode. 1263 Point size = new Point(); 1264 mDisplay.getRealSize(size); 1265 desiredWindowWidth = size.x; 1266 desiredWindowHeight = size.y; 1267 } else { 1268 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1269 desiredWindowWidth = packageMetrics.widthPixels; 1270 desiredWindowHeight = packageMetrics.heightPixels; 1271 } 1272 } 1273 } 1274 1275 // Ask host how big it wants to be 1276 windowSizeMayChange |= measureHierarchy(host, lp, res, 1277 desiredWindowWidth, desiredWindowHeight); 1278 } 1279 1280 if (collectViewAttributes()) { 1281 params = lp; 1282 } 1283 if (attachInfo.mForceReportNewAttributes) { 1284 attachInfo.mForceReportNewAttributes = false; 1285 params = lp; 1286 } 1287 1288 if (mFirst || attachInfo.mViewVisibilityChanged) { 1289 attachInfo.mViewVisibilityChanged = false; 1290 int resizeMode = mSoftInputMode & 1291 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1292 // If we are in auto resize mode, then we need to determine 1293 // what mode to use now. 1294 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1295 final int N = attachInfo.mScrollContainers.size(); 1296 for (int i=0; i<N; i++) { 1297 if (attachInfo.mScrollContainers.get(i).isShown()) { 1298 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1299 } 1300 } 1301 if (resizeMode == 0) { 1302 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1303 } 1304 if ((lp.softInputMode & 1305 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1306 lp.softInputMode = (lp.softInputMode & 1307 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1308 resizeMode; 1309 params = lp; 1310 } 1311 } 1312 } 1313 1314 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1315 if (!PixelFormat.formatHasAlpha(params.format)) { 1316 params.format = PixelFormat.TRANSLUCENT; 1317 } 1318 } 1319 1320 if (mFitSystemWindowsRequested) { 1321 mFitSystemWindowsRequested = false; 1322 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1323 host.fitSystemWindows(mFitSystemWindowsInsets); 1324 if (mLayoutRequested) { 1325 // Short-circuit catching a new layout request here, so 1326 // we don't need to go through two layout passes when things 1327 // change due to fitting system windows, which can happen a lot. 1328 windowSizeMayChange |= measureHierarchy(host, lp, 1329 mView.getContext().getResources(), 1330 desiredWindowWidth, desiredWindowHeight); 1331 } 1332 } 1333 1334 if (layoutRequested) { 1335 // Clear this now, so that if anything requests a layout in the 1336 // rest of this function we will catch it and re-run a full 1337 // layout pass. 1338 mLayoutRequested = false; 1339 } 1340 1341 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1342 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1343 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1344 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1345 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1346 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1347 1348 final boolean computesInternalInsets = 1349 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1350 1351 boolean insetsPending = false; 1352 int relayoutResult = 0; 1353 1354 if (mFirst || windowShouldResize || insetsChanged || 1355 viewVisibilityChanged || params != null) { 1356 1357 if (viewVisibility == View.VISIBLE) { 1358 // If this window is giving internal insets to the window 1359 // manager, and it is being added or changing its visibility, 1360 // then we want to first give the window manager "fake" 1361 // insets to cause it to effectively ignore the content of 1362 // the window during layout. This avoids it briefly causing 1363 // other windows to resize/move based on the raw frame of the 1364 // window, waiting until we can finish laying out this window 1365 // and get back to the window manager with the ultimately 1366 // computed insets. 1367 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1368 } 1369 1370 if (mSurfaceHolder != null) { 1371 mSurfaceHolder.mSurfaceLock.lock(); 1372 mDrawingAllowed = true; 1373 } 1374 1375 boolean hwInitialized = false; 1376 boolean contentInsetsChanged = false; 1377 boolean visibleInsetsChanged; 1378 boolean hadSurface = mSurface.isValid(); 1379 1380 try { 1381 if (DEBUG_LAYOUT) { 1382 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1383 host.getMeasuredHeight() + ", params=" + params); 1384 } 1385 1386 final int surfaceGenerationId = mSurface.getGenerationId(); 1387 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1388 1389 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1390 + " content=" + mPendingContentInsets.toShortString() 1391 + " visible=" + mPendingVisibleInsets.toShortString() 1392 + " surface=" + mSurface); 1393 1394 if (mPendingConfiguration.seq != 0) { 1395 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1396 + mPendingConfiguration); 1397 updateConfiguration(mPendingConfiguration, !mFirst); 1398 mPendingConfiguration.seq = 0; 1399 } 1400 1401 contentInsetsChanged = !mPendingContentInsets.equals( 1402 mAttachInfo.mContentInsets); 1403 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1404 mAttachInfo.mVisibleInsets); 1405 if (contentInsetsChanged) { 1406 if (mWidth > 0 && mHeight > 0 && lp != null && 1407 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1408 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1409 mSurface != null && mSurface.isValid() && 1410 !mAttachInfo.mTurnOffWindowResizeAnim && 1411 mAttachInfo.mHardwareRenderer != null && 1412 mAttachInfo.mHardwareRenderer.isEnabled() && 1413 mAttachInfo.mHardwareRenderer.validate() && 1414 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1415 1416 disposeResizeBuffer(); 1417 1418 boolean completed = false; 1419 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1420 HardwareCanvas layerCanvas = null; 1421 try { 1422 if (mResizeBuffer == null) { 1423 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1424 mWidth, mHeight, false); 1425 } else if (mResizeBuffer.getWidth() != mWidth || 1426 mResizeBuffer.getHeight() != mHeight) { 1427 mResizeBuffer.resize(mWidth, mHeight); 1428 } 1429 // TODO: should handle create/resize failure 1430 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1431 layerCanvas.setViewport(mWidth, mHeight); 1432 layerCanvas.onPreDraw(null); 1433 final int restoreCount = layerCanvas.save(); 1434 1435 int yoff; 1436 final boolean scrolling = mScroller != null 1437 && mScroller.computeScrollOffset(); 1438 if (scrolling) { 1439 yoff = mScroller.getCurrY(); 1440 mScroller.abortAnimation(); 1441 } else { 1442 yoff = mScrollY; 1443 } 1444 1445 layerCanvas.translate(0, -yoff); 1446 if (mTranslator != null) { 1447 mTranslator.translateCanvas(layerCanvas); 1448 } 1449 1450 DisplayList displayList = mView.mDisplayList; 1451 if (displayList != null) { 1452 layerCanvas.drawDisplayList(displayList, null, 1453 DisplayList.FLAG_CLIP_CHILDREN); 1454 } else { 1455 mView.draw(layerCanvas); 1456 } 1457 1458 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1459 1460 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1461 mResizeBufferDuration = mView.getResources().getInteger( 1462 com.android.internal.R.integer.config_mediumAnimTime); 1463 completed = true; 1464 1465 layerCanvas.restoreToCount(restoreCount); 1466 } catch (OutOfMemoryError e) { 1467 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1468 } finally { 1469 if (layerCanvas != null) { 1470 layerCanvas.onPostDraw(); 1471 } 1472 if (mResizeBuffer != null) { 1473 mResizeBuffer.end(hwRendererCanvas); 1474 if (!completed) { 1475 mResizeBuffer.destroy(); 1476 mResizeBuffer = null; 1477 } 1478 } 1479 } 1480 } 1481 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1482 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1483 + mAttachInfo.mContentInsets); 1484 } 1485 if (contentInsetsChanged || mLastSystemUiVisibility != 1486 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1487 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1488 mFitSystemWindowsRequested = false; 1489 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1490 host.fitSystemWindows(mFitSystemWindowsInsets); 1491 } 1492 if (visibleInsetsChanged) { 1493 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1494 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1495 + mAttachInfo.mVisibleInsets); 1496 } 1497 1498 if (!hadSurface) { 1499 if (mSurface.isValid()) { 1500 // If we are creating a new surface, then we need to 1501 // completely redraw it. Also, when we get to the 1502 // point of drawing it we will hold off and schedule 1503 // a new traversal instead. This is so we can tell the 1504 // window manager about all of the windows being displayed 1505 // before actually drawing them, so it can display then 1506 // all at once. 1507 newSurface = true; 1508 mFullRedrawNeeded = true; 1509 mPreviousTransparentRegion.setEmpty(); 1510 1511 if (mAttachInfo.mHardwareRenderer != null) { 1512 try { 1513 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1514 mHolder.getSurface()); 1515 } catch (Surface.OutOfResourcesException e) { 1516 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1517 try { 1518 if (!mWindowSession.outOfMemory(mWindow) && 1519 Process.myUid() != Process.SYSTEM_UID) { 1520 Slog.w(TAG, "No processes killed for memory; killing self"); 1521 Process.killProcess(Process.myPid()); 1522 } 1523 } catch (RemoteException ex) { 1524 } 1525 mLayoutRequested = true; // ask wm for a new surface next time. 1526 return; 1527 } 1528 } 1529 } 1530 } else if (!mSurface.isValid()) { 1531 // If the surface has been removed, then reset the scroll 1532 // positions. 1533 if (mLastScrolledFocus != null) { 1534 mLastScrolledFocus.clear(); 1535 } 1536 mScrollY = mCurScrollY = 0; 1537 if (mScroller != null) { 1538 mScroller.abortAnimation(); 1539 } 1540 disposeResizeBuffer(); 1541 // Our surface is gone 1542 if (mAttachInfo.mHardwareRenderer != null && 1543 mAttachInfo.mHardwareRenderer.isEnabled()) { 1544 mAttachInfo.mHardwareRenderer.destroy(true); 1545 } 1546 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1547 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1548 mFullRedrawNeeded = true; 1549 try { 1550 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1551 } catch (Surface.OutOfResourcesException e) { 1552 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1553 try { 1554 if (!mWindowSession.outOfMemory(mWindow)) { 1555 Slog.w(TAG, "No processes killed for memory; killing self"); 1556 Process.killProcess(Process.myPid()); 1557 } 1558 } catch (RemoteException ex) { 1559 } 1560 mLayoutRequested = true; // ask wm for a new surface next time. 1561 return; 1562 } 1563 } 1564 } catch (RemoteException e) { 1565 } 1566 1567 if (DEBUG_ORIENTATION) Log.v( 1568 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1569 1570 attachInfo.mWindowLeft = frame.left; 1571 attachInfo.mWindowTop = frame.top; 1572 1573 // !!FIXME!! This next section handles the case where we did not get the 1574 // window size we asked for. We should avoid this by getting a maximum size from 1575 // the window session beforehand. 1576 if (mWidth != frame.width() || mHeight != frame.height()) { 1577 mWidth = frame.width(); 1578 mHeight = frame.height(); 1579 } 1580 1581 if (mSurfaceHolder != null) { 1582 // The app owns the surface; tell it about what is going on. 1583 if (mSurface.isValid()) { 1584 // XXX .copyFrom() doesn't work! 1585 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1586 mSurfaceHolder.mSurface = mSurface; 1587 } 1588 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1589 mSurfaceHolder.mSurfaceLock.unlock(); 1590 if (mSurface.isValid()) { 1591 if (!hadSurface) { 1592 mSurfaceHolder.ungetCallbacks(); 1593 1594 mIsCreating = true; 1595 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1596 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1597 if (callbacks != null) { 1598 for (SurfaceHolder.Callback c : callbacks) { 1599 c.surfaceCreated(mSurfaceHolder); 1600 } 1601 } 1602 surfaceChanged = true; 1603 } 1604 if (surfaceChanged) { 1605 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1606 lp.format, mWidth, mHeight); 1607 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1608 if (callbacks != null) { 1609 for (SurfaceHolder.Callback c : callbacks) { 1610 c.surfaceChanged(mSurfaceHolder, lp.format, 1611 mWidth, mHeight); 1612 } 1613 } 1614 } 1615 mIsCreating = false; 1616 } else if (hadSurface) { 1617 mSurfaceHolder.ungetCallbacks(); 1618 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1619 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1620 if (callbacks != null) { 1621 for (SurfaceHolder.Callback c : callbacks) { 1622 c.surfaceDestroyed(mSurfaceHolder); 1623 } 1624 } 1625 mSurfaceHolder.mSurfaceLock.lock(); 1626 try { 1627 mSurfaceHolder.mSurface = new Surface(); 1628 } finally { 1629 mSurfaceHolder.mSurfaceLock.unlock(); 1630 } 1631 } 1632 } 1633 1634 if (mAttachInfo.mHardwareRenderer != null && 1635 mAttachInfo.mHardwareRenderer.isEnabled()) { 1636 if (hwInitialized || windowShouldResize || 1637 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1638 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1639 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1640 if (!hwInitialized) { 1641 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1642 mFullRedrawNeeded = true; 1643 } 1644 } 1645 } 1646 1647 if (!mStopped) { 1648 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1649 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1650 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1651 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1652 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1653 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1654 1655 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1656 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1657 + " mHeight=" + mHeight 1658 + " measuredHeight=" + host.getMeasuredHeight() 1659 + " coveredInsetsChanged=" + contentInsetsChanged); 1660 1661 // Ask host how big it wants to be 1662 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1663 1664 // Implementation of weights from WindowManager.LayoutParams 1665 // We just grow the dimensions as needed and re-measure if 1666 // needs be 1667 int width = host.getMeasuredWidth(); 1668 int height = host.getMeasuredHeight(); 1669 boolean measureAgain = false; 1670 1671 if (lp.horizontalWeight > 0.0f) { 1672 width += (int) ((mWidth - width) * lp.horizontalWeight); 1673 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1674 MeasureSpec.EXACTLY); 1675 measureAgain = true; 1676 } 1677 if (lp.verticalWeight > 0.0f) { 1678 height += (int) ((mHeight - height) * lp.verticalWeight); 1679 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1680 MeasureSpec.EXACTLY); 1681 measureAgain = true; 1682 } 1683 1684 if (measureAgain) { 1685 if (DEBUG_LAYOUT) Log.v(TAG, 1686 "And hey let's measure once more: width=" + width 1687 + " height=" + height); 1688 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1689 } 1690 1691 layoutRequested = true; 1692 } 1693 } 1694 } else { 1695 // Not the first pass and no window/insets/visibility change but the window 1696 // may have moved and we need check that and if so to update the left and right 1697 // in the attach info. We translate only the window frame since on window move 1698 // the window manager tells us only for the new frame but the insets are the 1699 // same and we do not want to translate them more than once. 1700 1701 // TODO: Well, we are checking whether the frame has changed similarly 1702 // to how this is done for the insets. This is however incorrect since 1703 // the insets and the frame are translated. For example, the old frame 1704 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1705 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1706 // true since we are comparing a not translated value to a translated one. 1707 // This scenario is rare but we may want to fix that. 1708 1709 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1710 || attachInfo.mWindowTop != frame.top); 1711 if (windowMoved) { 1712 if (mTranslator != null) { 1713 mTranslator.translateRectInScreenToAppWinFrame(frame); 1714 } 1715 attachInfo.mWindowLeft = frame.left; 1716 attachInfo.mWindowTop = frame.top; 1717 } 1718 } 1719 1720 final boolean didLayout = layoutRequested && !mStopped; 1721 boolean triggerGlobalLayoutListener = didLayout 1722 || attachInfo.mRecomputeGlobalAttributes; 1723 if (didLayout) { 1724 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1725 1726 // By this point all views have been sized and positionned 1727 // We can compute the transparent area 1728 1729 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1730 // start out transparent 1731 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1732 host.getLocationInWindow(mTmpLocation); 1733 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1734 mTmpLocation[0] + host.mRight - host.mLeft, 1735 mTmpLocation[1] + host.mBottom - host.mTop); 1736 1737 host.gatherTransparentRegion(mTransparentRegion); 1738 if (mTranslator != null) { 1739 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1740 } 1741 1742 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1743 mPreviousTransparentRegion.set(mTransparentRegion); 1744 // reconfigure window manager 1745 try { 1746 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1747 } catch (RemoteException e) { 1748 } 1749 } 1750 } 1751 1752 if (DBG) { 1753 System.out.println("======================================"); 1754 System.out.println("performTraversals -- after setFrame"); 1755 host.debug(); 1756 } 1757 } 1758 1759 if (triggerGlobalLayoutListener) { 1760 attachInfo.mRecomputeGlobalAttributes = false; 1761 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1762 1763 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1764 postSendWindowContentChangedCallback(mView); 1765 } 1766 } 1767 1768 if (computesInternalInsets) { 1769 // Clear the original insets. 1770 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1771 insets.reset(); 1772 1773 // Compute new insets in place. 1774 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1775 1776 // Tell the window manager. 1777 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1778 mLastGivenInsets.set(insets); 1779 1780 // Translate insets to screen coordinates if needed. 1781 final Rect contentInsets; 1782 final Rect visibleInsets; 1783 final Region touchableRegion; 1784 if (mTranslator != null) { 1785 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1786 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1787 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1788 } else { 1789 contentInsets = insets.contentInsets; 1790 visibleInsets = insets.visibleInsets; 1791 touchableRegion = insets.touchableRegion; 1792 } 1793 1794 try { 1795 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1796 contentInsets, visibleInsets, touchableRegion); 1797 } catch (RemoteException e) { 1798 } 1799 } 1800 } 1801 1802 boolean skipDraw = false; 1803 1804 if (mFirst) { 1805 // handle first focus request 1806 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1807 + mView.hasFocus()); 1808 if (mView != null) { 1809 if (!mView.hasFocus()) { 1810 mView.requestFocus(View.FOCUS_FORWARD); 1811 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1812 + mView.findFocus()); 1813 } else { 1814 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1815 + mView.findFocus()); 1816 } 1817 } 1818 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1819 // The first time we relayout the window, if the system is 1820 // doing window animations, we want to hold of on any future 1821 // draws until the animation is done. 1822 mWindowsAnimating = true; 1823 } 1824 } else if (mWindowsAnimating) { 1825 skipDraw = true; 1826 } 1827 1828 mFirst = false; 1829 mWillDrawSoon = false; 1830 mNewSurfaceNeeded = false; 1831 mViewVisibility = viewVisibility; 1832 1833 if (mAttachInfo.mHasWindowFocus) { 1834 final boolean imTarget = WindowManager.LayoutParams 1835 .mayUseInputMethod(mWindowAttributes.flags); 1836 if (imTarget != mLastWasImTarget) { 1837 mLastWasImTarget = imTarget; 1838 InputMethodManager imm = InputMethodManager.peekInstance(); 1839 if (imm != null && imTarget) { 1840 imm.startGettingWindowFocus(mView); 1841 imm.onWindowFocus(mView, mView.findFocus(), 1842 mWindowAttributes.softInputMode, 1843 !mHasHadWindowFocus, mWindowAttributes.flags); 1844 } 1845 } 1846 } 1847 1848 // Remember if we must report the next draw. 1849 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1850 mReportNextDraw = true; 1851 } 1852 1853 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1854 viewVisibility != View.VISIBLE; 1855 1856 if (!cancelDraw && !newSurface) { 1857 if (!skipDraw || mReportNextDraw) { 1858 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1859 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1860 mPendingTransitions.get(i).startChangingAnimations(); 1861 } 1862 mPendingTransitions.clear(); 1863 } 1864 1865 performDraw(); 1866 } 1867 } else { 1868 if (viewVisibility == View.VISIBLE) { 1869 // Try again 1870 scheduleTraversals(); 1871 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1872 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1873 mPendingTransitions.get(i).endChangingAnimations(); 1874 } 1875 mPendingTransitions.clear(); 1876 } 1877 } 1878 1879 mIsInTraversal = false; 1880 } 1881 1882 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1883 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1884 try { 1885 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1886 } finally { 1887 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1888 } 1889 } 1890 1891 /** 1892 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1893 * is currently undergoing a layout pass. 1894 * 1895 * @return whether the view hierarchy is currently undergoing a layout pass 1896 */ 1897 boolean isInLayout() { 1898 return mInLayout; 1899 } 1900 1901 /** 1902 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1903 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1904 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1905 * all children in that container hierarchy are measured and laid out at the end of the layout 1906 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1907 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1908 * we check all of those views to see if any still have pending layout requests, which 1909 * indicates that they were not correctly handled by their container hierarchy. If that is 1910 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1911 * to blank containers, and force a second request/measure/layout pass in this frame. If 1912 * more requestLayout() calls are received during that second layout pass, we post those 1913 * requests to the next frame to avoid possible infinite loops. 1914 * 1915 * <p>The return value from this method indicates whether the request should proceed 1916 * (if it is a request during the first layout pass) or should be skipped and posted to the 1917 * next frame (if it is a request during the second layout pass).</p> 1918 * 1919 * @param view the view that requested the layout. 1920 * 1921 * @return true if request should proceed, false otherwise. 1922 */ 1923 boolean requestLayoutDuringLayout(final View view) { 1924 if (view.mParent == null || view.mAttachInfo == null) { 1925 // Would not normally trigger another layout, so just let it pass through as usual 1926 return true; 1927 } 1928 if (!mHandlingLayoutInLayoutRequest) { 1929 if (!mLayoutRequesters.contains(view)) { 1930 mLayoutRequesters.add(view); 1931 } 1932 return true; 1933 } else { 1934 Log.w("View", "requestLayout() called by " + view + " during second layout pass: " + 1935 "posting to next frame"); 1936 view.post(new Runnable() { 1937 @Override 1938 public void run() { 1939 view.requestLayout(); 1940 } 1941 }); 1942 return false; 1943 } 1944 } 1945 1946 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1947 int desiredWindowHeight) { 1948 mLayoutRequested = false; 1949 mScrollMayChange = true; 1950 mInLayout = true; 1951 1952 final View host = mView; 1953 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1954 Log.v(TAG, "Laying out " + host + " to (" + 1955 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1956 } 1957 1958 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1959 try { 1960 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1961 1962 mInLayout = false; 1963 int numViewsRequestingLayout = mLayoutRequesters.size(); 1964 if (numViewsRequestingLayout > 0) { 1965 // requestLayout() was called during layout. 1966 // If no layout-request flags are set on the requesting views, there is no problem. 1967 // If some requests are still pending, then we need to clear those flags and do 1968 // a full request/measure/layout pass to handle this situation. 1969 1970 // Check state of layout flags for all requesters 1971 ArrayList<View> mValidLayoutRequesters = null; 1972 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1973 View view = mLayoutRequesters.get(i); 1974 if ((view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == View.PFLAG_FORCE_LAYOUT) { 1975 while (view != null && view.mAttachInfo != null && view.mParent != null && 1976 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 1977 if ((view.mViewFlags & View.VISIBILITY_MASK) != View.GONE) { 1978 // Only trigger new requests for non-GONE views 1979 Log.w(TAG, "requestLayout() improperly called during " + 1980 "layout: running second layout pass for " + view); 1981 if (mValidLayoutRequesters == null) { 1982 mValidLayoutRequesters = new ArrayList<View>(); 1983 } 1984 mValidLayoutRequesters.add(view); 1985 break; 1986 } 1987 if (view.mParent instanceof View) { 1988 view = (View) view.mParent; 1989 } else { 1990 view = null; 1991 } 1992 } 1993 } 1994 } 1995 if (mValidLayoutRequesters != null) { 1996 // Clear flags throughout hierarchy, walking up from each flagged requester 1997 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1998 View view = mLayoutRequesters.get(i); 1999 while (view != null && 2000 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2001 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2002 if (view.mParent instanceof View) { 2003 view = (View) view.mParent; 2004 } else { 2005 view = null; 2006 } 2007 } 2008 } 2009 // Process fresh layout requests, then measure and layout 2010 mHandlingLayoutInLayoutRequest = true; 2011 int numValidRequests = mValidLayoutRequesters.size(); 2012 for (int i = 0; i < numValidRequests; ++i) { 2013 mValidLayoutRequesters.get(i).requestLayout(); 2014 } 2015 measureHierarchy(host, lp, mView.getContext().getResources(), 2016 desiredWindowWidth, desiredWindowHeight); 2017 mInLayout = true; 2018 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2019 mHandlingLayoutInLayoutRequest = false; 2020 } 2021 mLayoutRequesters.clear(); 2022 } 2023 } finally { 2024 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2025 } 2026 mInLayout = false; 2027 } 2028 2029 public void requestTransparentRegion(View child) { 2030 // the test below should not fail unless someone is messing with us 2031 checkThread(); 2032 if (mView == child) { 2033 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2034 // Need to make sure we re-evaluate the window attributes next 2035 // time around, to ensure the window has the correct format. 2036 mWindowAttributesChanged = true; 2037 mWindowAttributesChangesFlag = 0; 2038 requestLayout(); 2039 } 2040 } 2041 2042 /** 2043 * Figures out the measure spec for the root view in a window based on it's 2044 * layout params. 2045 * 2046 * @param windowSize 2047 * The available width or height of the window 2048 * 2049 * @param rootDimension 2050 * The layout params for one dimension (width or height) of the 2051 * window. 2052 * 2053 * @return The measure spec to use to measure the root view. 2054 */ 2055 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2056 int measureSpec; 2057 switch (rootDimension) { 2058 2059 case ViewGroup.LayoutParams.MATCH_PARENT: 2060 // Window can't resize. Force root view to be windowSize. 2061 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2062 break; 2063 case ViewGroup.LayoutParams.WRAP_CONTENT: 2064 // Window can resize. Set max size for root view. 2065 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2066 break; 2067 default: 2068 // Window wants to be an exact size. Force root view to be that size. 2069 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2070 break; 2071 } 2072 return measureSpec; 2073 } 2074 2075 int mHardwareYOffset; 2076 int mResizeAlpha; 2077 final Paint mResizePaint = new Paint(); 2078 2079 public void onHardwarePreDraw(HardwareCanvas canvas) { 2080 canvas.translate(0, -mHardwareYOffset); 2081 } 2082 2083 public void onHardwarePostDraw(HardwareCanvas canvas) { 2084 if (mResizeBuffer != null) { 2085 mResizePaint.setAlpha(mResizeAlpha); 2086 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2087 } 2088 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2089 } 2090 2091 /** 2092 * @hide 2093 */ 2094 void outputDisplayList(View view) { 2095 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2096 DisplayList displayList = view.getDisplayList(); 2097 if (displayList != null) { 2098 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2099 } 2100 } 2101 } 2102 2103 /** 2104 * @see #PROPERTY_PROFILE_RENDERING 2105 */ 2106 private void profileRendering(boolean enabled) { 2107 if (mProfileRendering) { 2108 mRenderProfilingEnabled = enabled; 2109 if (mRenderProfiler == null) { 2110 mRenderProfiler = new Choreographer.FrameCallback() { 2111 @Override 2112 public void doFrame(long frameTimeNanos) { 2113 mDirty.set(0, 0, mWidth, mHeight); 2114 scheduleTraversals(); 2115 if (mRenderProfilingEnabled) { 2116 mChoreographer.postFrameCallback(mRenderProfiler); 2117 } 2118 } 2119 }; 2120 mChoreographer.postFrameCallback(mRenderProfiler); 2121 } else { 2122 mChoreographer.removeFrameCallback(mRenderProfiler); 2123 mRenderProfiler = null; 2124 } 2125 } 2126 } 2127 2128 /** 2129 * Called from draw() when DEBUG_FPS is enabled 2130 */ 2131 private void trackFPS() { 2132 // Tracks frames per second drawn. First value in a series of draws may be bogus 2133 // because it down not account for the intervening idle time 2134 long nowTime = System.currentTimeMillis(); 2135 if (mFpsStartTime < 0) { 2136 mFpsStartTime = mFpsPrevTime = nowTime; 2137 mFpsNumFrames = 0; 2138 } else { 2139 ++mFpsNumFrames; 2140 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2141 long frameTime = nowTime - mFpsPrevTime; 2142 long totalTime = nowTime - mFpsStartTime; 2143 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2144 mFpsPrevTime = nowTime; 2145 if (totalTime > 1000) { 2146 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2147 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2148 mFpsStartTime = nowTime; 2149 mFpsNumFrames = 0; 2150 } 2151 } 2152 } 2153 2154 private void performDraw() { 2155 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2156 return; 2157 } 2158 2159 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2160 mFullRedrawNeeded = false; 2161 2162 mIsDrawing = true; 2163 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2164 try { 2165 draw(fullRedrawNeeded); 2166 } finally { 2167 mIsDrawing = false; 2168 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2169 } 2170 2171 if (mReportNextDraw) { 2172 mReportNextDraw = false; 2173 2174 if (LOCAL_LOGV) { 2175 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2176 } 2177 if (mSurfaceHolder != null && mSurface.isValid()) { 2178 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2179 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2180 if (callbacks != null) { 2181 for (SurfaceHolder.Callback c : callbacks) { 2182 if (c instanceof SurfaceHolder.Callback2) { 2183 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2184 mSurfaceHolder); 2185 } 2186 } 2187 } 2188 } 2189 try { 2190 mWindowSession.finishDrawing(mWindow); 2191 } catch (RemoteException e) { 2192 } 2193 } 2194 } 2195 2196 private void draw(boolean fullRedrawNeeded) { 2197 Surface surface = mSurface; 2198 if (!surface.isValid()) { 2199 return; 2200 } 2201 2202 if (DEBUG_FPS) { 2203 trackFPS(); 2204 } 2205 2206 if (!sFirstDrawComplete) { 2207 synchronized (sFirstDrawHandlers) { 2208 sFirstDrawComplete = true; 2209 final int count = sFirstDrawHandlers.size(); 2210 for (int i = 0; i< count; i++) { 2211 mHandler.post(sFirstDrawHandlers.get(i)); 2212 } 2213 } 2214 } 2215 2216 scrollToRectOrFocus(null, false); 2217 2218 final AttachInfo attachInfo = mAttachInfo; 2219 if (attachInfo.mViewScrollChanged) { 2220 attachInfo.mViewScrollChanged = false; 2221 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2222 } 2223 2224 int yoff; 2225 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2226 if (animating) { 2227 yoff = mScroller.getCurrY(); 2228 } else { 2229 yoff = mScrollY; 2230 } 2231 if (mCurScrollY != yoff) { 2232 mCurScrollY = yoff; 2233 fullRedrawNeeded = true; 2234 } 2235 2236 final float appScale = attachInfo.mApplicationScale; 2237 final boolean scalingRequired = attachInfo.mScalingRequired; 2238 2239 int resizeAlpha = 0; 2240 if (mResizeBuffer != null) { 2241 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2242 if (deltaTime < mResizeBufferDuration) { 2243 float amt = deltaTime/(float) mResizeBufferDuration; 2244 amt = mResizeInterpolator.getInterpolation(amt); 2245 animating = true; 2246 resizeAlpha = 255 - (int)(amt*255); 2247 } else { 2248 disposeResizeBuffer(); 2249 } 2250 } 2251 2252 final Rect dirty = mDirty; 2253 if (mSurfaceHolder != null) { 2254 // The app owns the surface, we won't draw. 2255 dirty.setEmpty(); 2256 if (animating) { 2257 if (mScroller != null) { 2258 mScroller.abortAnimation(); 2259 } 2260 disposeResizeBuffer(); 2261 } 2262 return; 2263 } 2264 2265 if (fullRedrawNeeded) { 2266 attachInfo.mIgnoreDirtyState = true; 2267 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2268 } 2269 2270 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2271 Log.v(TAG, "Draw " + mView + "/" 2272 + mWindowAttributes.getTitle() 2273 + ": dirty={" + dirty.left + "," + dirty.top 2274 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2275 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2276 appScale + ", width=" + mWidth + ", height=" + mHeight); 2277 } 2278 2279 invalidateDisplayLists(); 2280 2281 attachInfo.mTreeObserver.dispatchOnDraw(); 2282 2283 if (!dirty.isEmpty() || mIsAnimating) { 2284 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2285 // Draw with hardware renderer. 2286 mIsAnimating = false; 2287 mHardwareYOffset = yoff; 2288 mResizeAlpha = resizeAlpha; 2289 2290 mCurrentDirty.set(dirty); 2291 mCurrentDirty.union(mPreviousDirty); 2292 mPreviousDirty.set(dirty); 2293 dirty.setEmpty(); 2294 2295 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2296 animating ? null : mCurrentDirty)) { 2297 mPreviousDirty.set(0, 0, mWidth, mHeight); 2298 } 2299 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2300 return; 2301 } 2302 } 2303 2304 if (animating) { 2305 mFullRedrawNeeded = true; 2306 scheduleTraversals(); 2307 } 2308 } 2309 2310 /** 2311 * @return true if drawing was succesfull, false if an error occurred 2312 */ 2313 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2314 boolean scalingRequired, Rect dirty) { 2315 2316 // If we get here with a disabled & requested hardware renderer, something went 2317 // wrong (an invalidate posted right before we destroyed the hardware surface 2318 // for instance) so we should just bail out. Locking the surface with software 2319 // rendering at this point would lock it forever and prevent hardware renderer 2320 // from doing its job when it comes back. 2321 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2322 attachInfo.mHardwareRenderer.isRequested()) { 2323 mFullRedrawNeeded = true; 2324 scheduleTraversals(); 2325 return false; 2326 } 2327 2328 // Draw with software renderer. 2329 Canvas canvas; 2330 try { 2331 int left = dirty.left; 2332 int top = dirty.top; 2333 int right = dirty.right; 2334 int bottom = dirty.bottom; 2335 2336 canvas = mSurface.lockCanvas(dirty); 2337 2338 if (left != dirty.left || top != dirty.top || right != dirty.right || 2339 bottom != dirty.bottom) { 2340 attachInfo.mIgnoreDirtyState = true; 2341 } 2342 2343 // TODO: Do this in native 2344 canvas.setDensity(mDensity); 2345 } catch (Surface.OutOfResourcesException e) { 2346 Log.e(TAG, "OutOfResourcesException locking surface", e); 2347 try { 2348 if (!mWindowSession.outOfMemory(mWindow)) { 2349 Slog.w(TAG, "No processes killed for memory; killing self"); 2350 Process.killProcess(Process.myPid()); 2351 } 2352 } catch (RemoteException ex) { 2353 } 2354 mLayoutRequested = true; // ask wm for a new surface next time. 2355 return false; 2356 } catch (IllegalArgumentException e) { 2357 Log.e(TAG, "Could not lock surface", e); 2358 // Don't assume this is due to out of memory, it could be 2359 // something else, and if it is something else then we could 2360 // kill stuff (or ourself) for no reason. 2361 mLayoutRequested = true; // ask wm for a new surface next time. 2362 return false; 2363 } 2364 2365 try { 2366 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2367 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2368 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2369 //canvas.drawARGB(255, 255, 0, 0); 2370 } 2371 2372 // If this bitmap's format includes an alpha channel, we 2373 // need to clear it before drawing so that the child will 2374 // properly re-composite its drawing on a transparent 2375 // background. This automatically respects the clip/dirty region 2376 // or 2377 // If we are applying an offset, we need to clear the area 2378 // where the offset doesn't appear to avoid having garbage 2379 // left in the blank areas. 2380 if (!canvas.isOpaque() || yoff != 0) { 2381 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2382 } 2383 2384 dirty.setEmpty(); 2385 mIsAnimating = false; 2386 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2387 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2388 2389 if (DEBUG_DRAW) { 2390 Context cxt = mView.getContext(); 2391 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2392 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2393 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2394 } 2395 try { 2396 canvas.translate(0, -yoff); 2397 if (mTranslator != null) { 2398 mTranslator.translateCanvas(canvas); 2399 } 2400 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2401 attachInfo.mSetIgnoreDirtyState = false; 2402 2403 mView.draw(canvas); 2404 2405 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2406 } finally { 2407 if (!attachInfo.mSetIgnoreDirtyState) { 2408 // Only clear the flag if it was not set during the mView.draw() call 2409 attachInfo.mIgnoreDirtyState = false; 2410 } 2411 } 2412 } finally { 2413 try { 2414 surface.unlockCanvasAndPost(canvas); 2415 } catch (IllegalArgumentException e) { 2416 Log.e(TAG, "Could not unlock surface", e); 2417 mLayoutRequested = true; // ask wm for a new surface next time. 2418 //noinspection ReturnInsideFinallyBlock 2419 return false; 2420 } 2421 2422 if (LOCAL_LOGV) { 2423 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2424 } 2425 } 2426 return true; 2427 } 2428 2429 /** 2430 * We want to draw a highlight around the current accessibility focused. 2431 * Since adding a style for all possible view is not a viable option we 2432 * have this specialized drawing method. 2433 * 2434 * Note: We are doing this here to be able to draw the highlight for 2435 * virtual views in addition to real ones. 2436 * 2437 * @param canvas The canvas on which to draw. 2438 */ 2439 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2440 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2441 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2442 return; 2443 } 2444 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2445 return; 2446 } 2447 Drawable drawable = getAccessibilityFocusedDrawable(); 2448 if (drawable == null) { 2449 return; 2450 } 2451 AccessibilityNodeProvider provider = 2452 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2453 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2454 if (provider == null) { 2455 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2456 } else { 2457 if (mAccessibilityFocusedVirtualView == null) { 2458 return; 2459 } 2460 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2461 } 2462 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2463 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2464 drawable.setBounds(bounds); 2465 drawable.draw(canvas); 2466 } 2467 2468 private Drawable getAccessibilityFocusedDrawable() { 2469 if (mAttachInfo != null) { 2470 // Lazily load the accessibility focus drawable. 2471 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2472 TypedValue value = new TypedValue(); 2473 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2474 R.attr.accessibilityFocusedDrawable, value, true); 2475 if (resolved) { 2476 mAttachInfo.mAccessibilityFocusDrawable = 2477 mView.mContext.getResources().getDrawable(value.resourceId); 2478 } 2479 } 2480 return mAttachInfo.mAccessibilityFocusDrawable; 2481 } 2482 return null; 2483 } 2484 2485 void invalidateDisplayLists() { 2486 final ArrayList<DisplayList> displayLists = mDisplayLists; 2487 final int count = displayLists.size(); 2488 2489 for (int i = 0; i < count; i++) { 2490 final DisplayList displayList = displayLists.get(i); 2491 if (displayList.isDirty()) { 2492 displayList.invalidate(); 2493 displayList.clear(); 2494 displayList.setDirty(false); 2495 } 2496 } 2497 2498 displayLists.clear(); 2499 } 2500 2501 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2502 final View.AttachInfo attachInfo = mAttachInfo; 2503 final Rect ci = attachInfo.mContentInsets; 2504 final Rect vi = attachInfo.mVisibleInsets; 2505 int scrollY = 0; 2506 boolean handled = false; 2507 2508 if (vi.left > ci.left || vi.top > ci.top 2509 || vi.right > ci.right || vi.bottom > ci.bottom) { 2510 // We'll assume that we aren't going to change the scroll 2511 // offset, since we want to avoid that unless it is actually 2512 // going to make the focus visible... otherwise we scroll 2513 // all over the place. 2514 scrollY = mScrollY; 2515 // We can be called for two different situations: during a draw, 2516 // to update the scroll position if the focus has changed (in which 2517 // case 'rectangle' is null), or in response to a 2518 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2519 // is non-null and we just want to scroll to whatever that 2520 // rectangle is). 2521 View focus = mView.findFocus(); 2522 if (focus == null) { 2523 return false; 2524 } 2525 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2526 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2527 // If the focus has changed, then ignore any requests to scroll 2528 // to a rectangle; first we want to make sure the entire focus 2529 // view is visible. 2530 rectangle = null; 2531 } 2532 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2533 + " rectangle=" + rectangle + " ci=" + ci 2534 + " vi=" + vi); 2535 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2536 // Optimization: if the focus hasn't changed since last 2537 // time, and no layout has happened, then just leave things 2538 // as they are. 2539 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2540 + mScrollY + " vi=" + vi.toShortString()); 2541 } else if (focus != null) { 2542 // We need to determine if the currently focused view is 2543 // within the visible part of the window and, if not, apply 2544 // a pan so it can be seen. 2545 mLastScrolledFocus = new WeakReference<View>(focus); 2546 mScrollMayChange = false; 2547 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2548 // Try to find the rectangle from the focus view. 2549 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2550 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2551 + mView.getWidth() + " h=" + mView.getHeight() 2552 + " ci=" + ci.toShortString() 2553 + " vi=" + vi.toShortString()); 2554 if (rectangle == null) { 2555 focus.getFocusedRect(mTempRect); 2556 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2557 + ": focusRect=" + mTempRect.toShortString()); 2558 if (mView instanceof ViewGroup) { 2559 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2560 focus, mTempRect); 2561 } 2562 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2563 "Focus in window: focusRect=" 2564 + mTempRect.toShortString() 2565 + " visRect=" + mVisRect.toShortString()); 2566 } else { 2567 mTempRect.set(rectangle); 2568 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2569 "Request scroll to rect: " 2570 + mTempRect.toShortString() 2571 + " visRect=" + mVisRect.toShortString()); 2572 } 2573 if (mTempRect.intersect(mVisRect)) { 2574 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2575 "Focus window visible rect: " 2576 + mTempRect.toShortString()); 2577 if (mTempRect.height() > 2578 (mView.getHeight()-vi.top-vi.bottom)) { 2579 // If the focus simply is not going to fit, then 2580 // best is probably just to leave things as-is. 2581 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2582 "Too tall; leaving scrollY=" + scrollY); 2583 } else if ((mTempRect.top-scrollY) < vi.top) { 2584 scrollY -= vi.top - (mTempRect.top-scrollY); 2585 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2586 "Top covered; scrollY=" + scrollY); 2587 } else if ((mTempRect.bottom-scrollY) 2588 > (mView.getHeight()-vi.bottom)) { 2589 scrollY += (mTempRect.bottom-scrollY) 2590 - (mView.getHeight()-vi.bottom); 2591 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2592 "Bottom covered; scrollY=" + scrollY); 2593 } 2594 handled = true; 2595 } 2596 } 2597 } 2598 } 2599 2600 if (scrollY != mScrollY) { 2601 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2602 + mScrollY + " , new=" + scrollY); 2603 if (!immediate && mResizeBuffer == null) { 2604 if (mScroller == null) { 2605 mScroller = new Scroller(mView.getContext()); 2606 } 2607 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2608 } else if (mScroller != null) { 2609 mScroller.abortAnimation(); 2610 } 2611 mScrollY = scrollY; 2612 } 2613 2614 return handled; 2615 } 2616 2617 /** 2618 * @hide 2619 */ 2620 public View getAccessibilityFocusedHost() { 2621 return mAccessibilityFocusedHost; 2622 } 2623 2624 /** 2625 * @hide 2626 */ 2627 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2628 return mAccessibilityFocusedVirtualView; 2629 } 2630 2631 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2632 // If we have a virtual view with accessibility focus we need 2633 // to clear the focus and invalidate the virtual view bounds. 2634 if (mAccessibilityFocusedVirtualView != null) { 2635 2636 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2637 View focusHost = mAccessibilityFocusedHost; 2638 focusHost.clearAccessibilityFocusNoCallbacks(); 2639 2640 // Wipe the state of the current accessibility focus since 2641 // the call into the provider to clear accessibility focus 2642 // will fire an accessibility event which will end up calling 2643 // this method and we want to have clean state when this 2644 // invocation happens. 2645 mAccessibilityFocusedHost = null; 2646 mAccessibilityFocusedVirtualView = null; 2647 2648 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2649 if (provider != null) { 2650 // Invalidate the area of the cleared accessibility focus. 2651 focusNode.getBoundsInParent(mTempRect); 2652 focusHost.invalidate(mTempRect); 2653 // Clear accessibility focus in the virtual node. 2654 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2655 focusNode.getSourceNodeId()); 2656 provider.performAction(virtualNodeId, 2657 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2658 } 2659 focusNode.recycle(); 2660 } 2661 if (mAccessibilityFocusedHost != null) { 2662 // Clear accessibility focus in the view. 2663 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2664 } 2665 2666 // Set the new focus host and node. 2667 mAccessibilityFocusedHost = view; 2668 mAccessibilityFocusedVirtualView = node; 2669 } 2670 2671 public void requestChildFocus(View child, View focused) { 2672 if (DEBUG_INPUT_RESIZE) { 2673 Log.v(TAG, "Request child focus: focus now " + focused); 2674 } 2675 checkThread(); 2676 scheduleTraversals(); 2677 } 2678 2679 public void clearChildFocus(View child) { 2680 if (DEBUG_INPUT_RESIZE) { 2681 Log.v(TAG, "Clearing child focus"); 2682 } 2683 checkThread(); 2684 scheduleTraversals(); 2685 } 2686 2687 @Override 2688 public ViewParent getParentForAccessibility() { 2689 return null; 2690 } 2691 2692 public void focusableViewAvailable(View v) { 2693 checkThread(); 2694 if (mView != null) { 2695 if (!mView.hasFocus()) { 2696 v.requestFocus(); 2697 } else { 2698 // the one case where will transfer focus away from the current one 2699 // is if the current view is a view group that prefers to give focus 2700 // to its children first AND the view is a descendant of it. 2701 View focused = mView.findFocus(); 2702 if (focused instanceof ViewGroup) { 2703 ViewGroup group = (ViewGroup) focused; 2704 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2705 && isViewDescendantOf(v, focused)) { 2706 v.requestFocus(); 2707 } 2708 } 2709 } 2710 } 2711 } 2712 2713 public void recomputeViewAttributes(View child) { 2714 checkThread(); 2715 if (mView == child) { 2716 mAttachInfo.mRecomputeGlobalAttributes = true; 2717 if (!mWillDrawSoon) { 2718 scheduleTraversals(); 2719 } 2720 } 2721 } 2722 2723 void dispatchDetachedFromWindow() { 2724 if (mView != null && mView.mAttachInfo != null) { 2725 if (mAttachInfo.mHardwareRenderer != null && 2726 mAttachInfo.mHardwareRenderer.isEnabled()) { 2727 mAttachInfo.mHardwareRenderer.validate(); 2728 } 2729 mView.dispatchDetachedFromWindow(); 2730 } 2731 2732 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2733 mAccessibilityManager.removeAccessibilityStateChangeListener( 2734 mAccessibilityInteractionConnectionManager); 2735 removeSendWindowContentChangedCallback(); 2736 2737 destroyHardwareRenderer(); 2738 2739 setAccessibilityFocus(null, null); 2740 2741 mView = null; 2742 mAttachInfo.mRootView = null; 2743 mAttachInfo.mSurface = null; 2744 2745 mSurface.release(); 2746 2747 if (mInputQueueCallback != null && mInputQueue != null) { 2748 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2749 mInputQueueCallback = null; 2750 mInputQueue = null; 2751 } else if (mInputEventReceiver != null) { 2752 mInputEventReceiver.dispose(); 2753 mInputEventReceiver = null; 2754 } 2755 try { 2756 mWindowSession.remove(mWindow); 2757 } catch (RemoteException e) { 2758 } 2759 2760 // Dispose the input channel after removing the window so the Window Manager 2761 // doesn't interpret the input channel being closed as an abnormal termination. 2762 if (mInputChannel != null) { 2763 mInputChannel.dispose(); 2764 mInputChannel = null; 2765 } 2766 2767 unscheduleTraversals(); 2768 } 2769 2770 void updateConfiguration(Configuration config, boolean force) { 2771 if (DEBUG_CONFIGURATION) Log.v(TAG, 2772 "Applying new config to window " 2773 + mWindowAttributes.getTitle() 2774 + ": " + config); 2775 2776 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2777 if (ci != null) { 2778 config = new Configuration(config); 2779 ci.applyToConfiguration(mNoncompatDensity, config); 2780 } 2781 2782 synchronized (sConfigCallbacks) { 2783 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2784 sConfigCallbacks.get(i).onConfigurationChanged(config); 2785 } 2786 } 2787 if (mView != null) { 2788 // At this point the resources have been updated to 2789 // have the most recent config, whatever that is. Use 2790 // the one in them which may be newer. 2791 config = mView.getResources().getConfiguration(); 2792 if (force || mLastConfiguration.diff(config) != 0) { 2793 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2794 final int currentLayoutDirection = config.getLayoutDirection(); 2795 mLastConfiguration.setTo(config); 2796 if (lastLayoutDirection != currentLayoutDirection && 2797 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2798 mView.setLayoutDirection(currentLayoutDirection); 2799 } 2800 mView.dispatchConfigurationChanged(config); 2801 } 2802 } 2803 } 2804 2805 /** 2806 * Return true if child is an ancestor of parent, (or equal to the parent). 2807 */ 2808 public static boolean isViewDescendantOf(View child, View parent) { 2809 if (child == parent) { 2810 return true; 2811 } 2812 2813 final ViewParent theParent = child.getParent(); 2814 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2815 } 2816 2817 private static void forceLayout(View view) { 2818 view.forceLayout(); 2819 if (view instanceof ViewGroup) { 2820 ViewGroup group = (ViewGroup) view; 2821 final int count = group.getChildCount(); 2822 for (int i = 0; i < count; i++) { 2823 forceLayout(group.getChildAt(i)); 2824 } 2825 } 2826 } 2827 2828 private final static int MSG_INVALIDATE = 1; 2829 private final static int MSG_INVALIDATE_RECT = 2; 2830 private final static int MSG_DIE = 3; 2831 private final static int MSG_RESIZED = 4; 2832 private final static int MSG_RESIZED_REPORT = 5; 2833 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2834 private final static int MSG_DISPATCH_KEY = 7; 2835 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2836 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2837 private final static int MSG_IME_FINISHED_EVENT = 10; 2838 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2839 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2840 private final static int MSG_CHECK_FOCUS = 13; 2841 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2842 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2843 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2844 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2845 private final static int MSG_UPDATE_CONFIGURATION = 18; 2846 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2847 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2848 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2849 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2850 private final static int MSG_INVALIDATE_WORLD = 23; 2851 private final static int MSG_WINDOW_MOVED = 24; 2852 2853 final class ViewRootHandler extends Handler { 2854 @Override 2855 public String getMessageName(Message message) { 2856 switch (message.what) { 2857 case MSG_INVALIDATE: 2858 return "MSG_INVALIDATE"; 2859 case MSG_INVALIDATE_RECT: 2860 return "MSG_INVALIDATE_RECT"; 2861 case MSG_DIE: 2862 return "MSG_DIE"; 2863 case MSG_RESIZED: 2864 return "MSG_RESIZED"; 2865 case MSG_RESIZED_REPORT: 2866 return "MSG_RESIZED_REPORT"; 2867 case MSG_WINDOW_FOCUS_CHANGED: 2868 return "MSG_WINDOW_FOCUS_CHANGED"; 2869 case MSG_DISPATCH_KEY: 2870 return "MSG_DISPATCH_KEY"; 2871 case MSG_DISPATCH_APP_VISIBILITY: 2872 return "MSG_DISPATCH_APP_VISIBILITY"; 2873 case MSG_DISPATCH_GET_NEW_SURFACE: 2874 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2875 case MSG_IME_FINISHED_EVENT: 2876 return "MSG_IME_FINISHED_EVENT"; 2877 case MSG_DISPATCH_KEY_FROM_IME: 2878 return "MSG_DISPATCH_KEY_FROM_IME"; 2879 case MSG_FINISH_INPUT_CONNECTION: 2880 return "MSG_FINISH_INPUT_CONNECTION"; 2881 case MSG_CHECK_FOCUS: 2882 return "MSG_CHECK_FOCUS"; 2883 case MSG_CLOSE_SYSTEM_DIALOGS: 2884 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2885 case MSG_DISPATCH_DRAG_EVENT: 2886 return "MSG_DISPATCH_DRAG_EVENT"; 2887 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2888 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2889 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2890 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2891 case MSG_UPDATE_CONFIGURATION: 2892 return "MSG_UPDATE_CONFIGURATION"; 2893 case MSG_PROCESS_INPUT_EVENTS: 2894 return "MSG_PROCESS_INPUT_EVENTS"; 2895 case MSG_DISPATCH_SCREEN_STATE: 2896 return "MSG_DISPATCH_SCREEN_STATE"; 2897 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2898 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2899 case MSG_DISPATCH_DONE_ANIMATING: 2900 return "MSG_DISPATCH_DONE_ANIMATING"; 2901 case MSG_WINDOW_MOVED: 2902 return "MSG_WINDOW_MOVED"; 2903 } 2904 return super.getMessageName(message); 2905 } 2906 2907 @Override 2908 public void handleMessage(Message msg) { 2909 switch (msg.what) { 2910 case MSG_INVALIDATE: 2911 ((View) msg.obj).invalidate(); 2912 break; 2913 case MSG_INVALIDATE_RECT: 2914 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2915 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2916 info.recycle(); 2917 break; 2918 case MSG_IME_FINISHED_EVENT: 2919 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2920 break; 2921 case MSG_PROCESS_INPUT_EVENTS: 2922 mProcessInputEventsScheduled = false; 2923 doProcessInputEvents(); 2924 break; 2925 case MSG_DISPATCH_APP_VISIBILITY: 2926 handleAppVisibility(msg.arg1 != 0); 2927 break; 2928 case MSG_DISPATCH_GET_NEW_SURFACE: 2929 handleGetNewSurface(); 2930 break; 2931 case MSG_RESIZED: { 2932 // Recycled in the fall through... 2933 SomeArgs args = (SomeArgs) msg.obj; 2934 if (mWinFrame.equals(args.arg1) 2935 && mPendingContentInsets.equals(args.arg2) 2936 && mPendingVisibleInsets.equals(args.arg3) 2937 && args.arg4 == null) { 2938 break; 2939 } 2940 } // fall through... 2941 case MSG_RESIZED_REPORT: 2942 if (mAdded) { 2943 SomeArgs args = (SomeArgs) msg.obj; 2944 2945 Configuration config = (Configuration) args.arg4; 2946 if (config != null) { 2947 updateConfiguration(config, false); 2948 } 2949 2950 mWinFrame.set((Rect) args.arg1); 2951 mPendingContentInsets.set((Rect) args.arg2); 2952 mPendingVisibleInsets.set((Rect) args.arg3); 2953 2954 args.recycle(); 2955 2956 if (msg.what == MSG_RESIZED_REPORT) { 2957 mReportNextDraw = true; 2958 } 2959 2960 if (mView != null) { 2961 forceLayout(mView); 2962 } 2963 2964 requestLayout(); 2965 } 2966 break; 2967 case MSG_WINDOW_MOVED: 2968 if (mAdded) { 2969 final int w = mWinFrame.width(); 2970 final int h = mWinFrame.height(); 2971 final int l = msg.arg1; 2972 final int t = msg.arg2; 2973 mWinFrame.left = l; 2974 mWinFrame.right = l + w; 2975 mWinFrame.top = t; 2976 mWinFrame.bottom = t + h; 2977 2978 if (mView != null) { 2979 forceLayout(mView); 2980 } 2981 requestLayout(); 2982 } 2983 break; 2984 case MSG_WINDOW_FOCUS_CHANGED: { 2985 if (mAdded) { 2986 boolean hasWindowFocus = msg.arg1 != 0; 2987 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2988 2989 profileRendering(hasWindowFocus); 2990 2991 if (hasWindowFocus) { 2992 boolean inTouchMode = msg.arg2 != 0; 2993 ensureTouchModeLocally(inTouchMode); 2994 2995 if (mAttachInfo.mHardwareRenderer != null && 2996 mSurface != null && mSurface.isValid()) { 2997 mFullRedrawNeeded = true; 2998 try { 2999 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3000 mWidth, mHeight, mHolder.getSurface())) { 3001 mFullRedrawNeeded = true; 3002 } 3003 } catch (Surface.OutOfResourcesException e) { 3004 Log.e(TAG, "OutOfResourcesException locking surface", e); 3005 try { 3006 if (!mWindowSession.outOfMemory(mWindow)) { 3007 Slog.w(TAG, "No processes killed for memory; killing self"); 3008 Process.killProcess(Process.myPid()); 3009 } 3010 } catch (RemoteException ex) { 3011 } 3012 // Retry in a bit. 3013 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3014 return; 3015 } 3016 } 3017 } 3018 3019 mLastWasImTarget = WindowManager.LayoutParams 3020 .mayUseInputMethod(mWindowAttributes.flags); 3021 3022 InputMethodManager imm = InputMethodManager.peekInstance(); 3023 if (mView != null) { 3024 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3025 imm.startGettingWindowFocus(mView); 3026 } 3027 mAttachInfo.mKeyDispatchState.reset(); 3028 mView.dispatchWindowFocusChanged(hasWindowFocus); 3029 } 3030 3031 // Note: must be done after the focus change callbacks, 3032 // so all of the view state is set up correctly. 3033 if (hasWindowFocus) { 3034 if (imm != null && mLastWasImTarget) { 3035 imm.onWindowFocus(mView, mView.findFocus(), 3036 mWindowAttributes.softInputMode, 3037 !mHasHadWindowFocus, mWindowAttributes.flags); 3038 } 3039 // Clear the forward bit. We can just do this directly, since 3040 // the window manager doesn't care about it. 3041 mWindowAttributes.softInputMode &= 3042 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3043 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3044 .softInputMode &= 3045 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3046 mHasHadWindowFocus = true; 3047 } 3048 3049 setAccessibilityFocus(null, null); 3050 3051 if (mView != null && mAccessibilityManager.isEnabled()) { 3052 if (hasWindowFocus) { 3053 mView.sendAccessibilityEvent( 3054 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3055 } 3056 } 3057 } 3058 } break; 3059 case MSG_DIE: 3060 doDie(); 3061 break; 3062 case MSG_DISPATCH_KEY: { 3063 KeyEvent event = (KeyEvent)msg.obj; 3064 enqueueInputEvent(event, null, 0, true); 3065 } break; 3066 case MSG_DISPATCH_KEY_FROM_IME: { 3067 if (LOCAL_LOGV) Log.v( 3068 TAG, "Dispatching key " 3069 + msg.obj + " from IME to " + mView); 3070 KeyEvent event = (KeyEvent)msg.obj; 3071 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3072 // The IME is trying to say this event is from the 3073 // system! Bad bad bad! 3074 //noinspection UnusedAssignment 3075 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3076 } 3077 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3078 } break; 3079 case MSG_FINISH_INPUT_CONNECTION: { 3080 InputMethodManager imm = InputMethodManager.peekInstance(); 3081 if (imm != null) { 3082 imm.reportFinishInputConnection((InputConnection)msg.obj); 3083 } 3084 } break; 3085 case MSG_CHECK_FOCUS: { 3086 InputMethodManager imm = InputMethodManager.peekInstance(); 3087 if (imm != null) { 3088 imm.checkFocus(); 3089 } 3090 } break; 3091 case MSG_CLOSE_SYSTEM_DIALOGS: { 3092 if (mView != null) { 3093 mView.onCloseSystemDialogs((String)msg.obj); 3094 } 3095 } break; 3096 case MSG_DISPATCH_DRAG_EVENT: 3097 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3098 DragEvent event = (DragEvent)msg.obj; 3099 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3100 handleDragEvent(event); 3101 } break; 3102 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3103 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3104 } break; 3105 case MSG_UPDATE_CONFIGURATION: { 3106 Configuration config = (Configuration)msg.obj; 3107 if (config.isOtherSeqNewer(mLastConfiguration)) { 3108 config = mLastConfiguration; 3109 } 3110 updateConfiguration(config, false); 3111 } break; 3112 case MSG_DISPATCH_SCREEN_STATE: { 3113 if (mView != null) { 3114 handleScreenStateChange(msg.arg1 == 1); 3115 } 3116 } break; 3117 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3118 setAccessibilityFocus(null, null); 3119 } break; 3120 case MSG_DISPATCH_DONE_ANIMATING: { 3121 handleDispatchDoneAnimating(); 3122 } break; 3123 case MSG_INVALIDATE_WORLD: { 3124 if (mView != null) { 3125 invalidateWorld(mView); 3126 } 3127 } break; 3128 } 3129 } 3130 } 3131 3132 final ViewRootHandler mHandler = new ViewRootHandler(); 3133 3134 /** 3135 * Something in the current window tells us we need to change the touch mode. For 3136 * example, we are not in touch mode, and the user touches the screen. 3137 * 3138 * If the touch mode has changed, tell the window manager, and handle it locally. 3139 * 3140 * @param inTouchMode Whether we want to be in touch mode. 3141 * @return True if the touch mode changed and focus changed was changed as a result 3142 */ 3143 boolean ensureTouchMode(boolean inTouchMode) { 3144 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3145 + "touch mode is " + mAttachInfo.mInTouchMode); 3146 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3147 3148 // tell the window manager 3149 try { 3150 mWindowSession.setInTouchMode(inTouchMode); 3151 } catch (RemoteException e) { 3152 throw new RuntimeException(e); 3153 } 3154 3155 // handle the change 3156 return ensureTouchModeLocally(inTouchMode); 3157 } 3158 3159 /** 3160 * Ensure that the touch mode for this window is set, and if it is changing, 3161 * take the appropriate action. 3162 * @param inTouchMode Whether we want to be in touch mode. 3163 * @return True if the touch mode changed and focus changed was changed as a result 3164 */ 3165 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3166 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3167 + "touch mode is " + mAttachInfo.mInTouchMode); 3168 3169 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3170 3171 mAttachInfo.mInTouchMode = inTouchMode; 3172 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3173 3174 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3175 } 3176 3177 private boolean enterTouchMode() { 3178 if (mView != null) { 3179 if (mView.hasFocus()) { 3180 // note: not relying on mFocusedView here because this could 3181 // be when the window is first being added, and mFocused isn't 3182 // set yet. 3183 final View focused = mView.findFocus(); 3184 if (focused != null && !focused.isFocusableInTouchMode()) { 3185 final ViewGroup ancestorToTakeFocus = 3186 findAncestorToTakeFocusInTouchMode(focused); 3187 if (ancestorToTakeFocus != null) { 3188 // there is an ancestor that wants focus after its descendants that 3189 // is focusable in touch mode.. give it focus 3190 return ancestorToTakeFocus.requestFocus(); 3191 } else { 3192 // nothing appropriate to have focus in touch mode, clear it out 3193 focused.unFocus(); 3194 return true; 3195 } 3196 } 3197 } 3198 } 3199 return false; 3200 } 3201 3202 /** 3203 * Find an ancestor of focused that wants focus after its descendants and is 3204 * focusable in touch mode. 3205 * @param focused The currently focused view. 3206 * @return An appropriate view, or null if no such view exists. 3207 */ 3208 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3209 ViewParent parent = focused.getParent(); 3210 while (parent instanceof ViewGroup) { 3211 final ViewGroup vgParent = (ViewGroup) parent; 3212 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3213 && vgParent.isFocusableInTouchMode()) { 3214 return vgParent; 3215 } 3216 if (vgParent.isRootNamespace()) { 3217 return null; 3218 } else { 3219 parent = vgParent.getParent(); 3220 } 3221 } 3222 return null; 3223 } 3224 3225 private boolean leaveTouchMode() { 3226 if (mView != null) { 3227 if (mView.hasFocus()) { 3228 View focusedView = mView.findFocus(); 3229 if (!(focusedView instanceof ViewGroup)) { 3230 // some view has focus, let it keep it 3231 return false; 3232 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3233 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3234 // some view group has focus, and doesn't prefer its children 3235 // over itself for focus, so let them keep it. 3236 return false; 3237 } 3238 } 3239 3240 // find the best view to give focus to in this brave new non-touch-mode 3241 // world 3242 final View focused = focusSearch(null, View.FOCUS_DOWN); 3243 if (focused != null) { 3244 return focused.requestFocus(View.FOCUS_DOWN); 3245 } 3246 } 3247 return false; 3248 } 3249 3250 private int deliverInputEvent(QueuedInputEvent q) { 3251 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3252 try { 3253 if (q.mEvent instanceof KeyEvent) { 3254 return deliverKeyEvent(q); 3255 } else { 3256 final int source = q.mEvent.getSource(); 3257 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3258 return deliverPointerEvent(q); 3259 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3260 return deliverTrackballEvent(q); 3261 } else { 3262 return deliverGenericMotionEvent(q); 3263 } 3264 } 3265 } finally { 3266 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3267 } 3268 } 3269 3270 private int deliverInputEventPostIme(QueuedInputEvent q) { 3271 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3272 try { 3273 if (q.mEvent instanceof KeyEvent) { 3274 return deliverKeyEventPostIme(q); 3275 } else { 3276 final int source = q.mEvent.getSource(); 3277 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3278 return deliverTrackballEventPostIme(q); 3279 } else { 3280 return deliverGenericMotionEventPostIme(q); 3281 } 3282 } 3283 } finally { 3284 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3285 } 3286 } 3287 3288 private int deliverPointerEvent(QueuedInputEvent q) { 3289 final MotionEvent event = (MotionEvent)q.mEvent; 3290 final boolean isTouchEvent = event.isTouchEvent(); 3291 if (mInputEventConsistencyVerifier != null) { 3292 if (isTouchEvent) { 3293 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3294 } else { 3295 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3296 } 3297 } 3298 3299 // If there is no view, then the event will not be handled. 3300 if (mView == null || !mAdded) { 3301 return EVENT_NOT_HANDLED; 3302 } 3303 3304 // Translate the pointer event for compatibility, if needed. 3305 if (mTranslator != null) { 3306 mTranslator.translateEventInScreenToAppWindow(event); 3307 } 3308 3309 // Enter touch mode on down or scroll. 3310 final int action = event.getAction(); 3311 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3312 ensureTouchMode(true); 3313 } 3314 3315 // Offset the scroll position. 3316 if (mCurScrollY != 0) { 3317 event.offsetLocation(0, mCurScrollY); 3318 } 3319 if (MEASURE_LATENCY) { 3320 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3321 } 3322 3323 // Remember the touch position for possible drag-initiation. 3324 if (isTouchEvent) { 3325 mLastTouchPoint.x = event.getRawX(); 3326 mLastTouchPoint.y = event.getRawY(); 3327 } 3328 3329 // Dispatch touch to view hierarchy. 3330 boolean handled = mView.dispatchPointerEvent(event); 3331 if (MEASURE_LATENCY) { 3332 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3333 } 3334 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3335 } 3336 3337 private int deliverTrackballEvent(QueuedInputEvent q) { 3338 final MotionEvent event = (MotionEvent)q.mEvent; 3339 if (mInputEventConsistencyVerifier != null) { 3340 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3341 } 3342 3343 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3344 if (LOCAL_LOGV) 3345 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3346 3347 // Dispatch to the IME before propagating down the view hierarchy. 3348 // The IME will eventually call back into handleImeFinishedEvent. 3349 if (mLastWasImTarget) { 3350 InputMethodManager imm = InputMethodManager.peekInstance(); 3351 if (imm != null) { 3352 final int seq = event.getSequenceNumber(); 3353 if (DEBUG_IMF) 3354 Log.v(TAG, "Sending trackball event to IME: seq=" 3355 + seq + " event=" + event); 3356 int result = imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3357 mInputMethodCallback); 3358 if (result != EVENT_NOT_HANDLED) { 3359 return result; 3360 } 3361 } 3362 } 3363 } 3364 3365 // Not dispatching to IME, continue with post IME actions. 3366 return deliverTrackballEventPostIme(q); 3367 } 3368 3369 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3370 final MotionEvent event = (MotionEvent) q.mEvent; 3371 3372 // If there is no view, then the event will not be handled. 3373 if (mView == null || !mAdded) { 3374 return EVENT_NOT_HANDLED; 3375 } 3376 3377 // Deliver the trackball event to the view. 3378 if (mView.dispatchTrackballEvent(event)) { 3379 // If we reach this, we delivered a trackball event to mView and 3380 // mView consumed it. Because we will not translate the trackball 3381 // event into a key event, touch mode will not exit, so we exit 3382 // touch mode here. 3383 ensureTouchMode(false); 3384 mLastTrackballTime = Integer.MIN_VALUE; 3385 return EVENT_HANDLED; 3386 } 3387 3388 // Translate the trackball event into DPAD keys and try to deliver those. 3389 final TrackballAxis x = mTrackballAxisX; 3390 final TrackballAxis y = mTrackballAxisY; 3391 3392 long curTime = SystemClock.uptimeMillis(); 3393 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3394 // It has been too long since the last movement, 3395 // so restart at the beginning. 3396 x.reset(0); 3397 y.reset(0); 3398 mLastTrackballTime = curTime; 3399 } 3400 3401 final int action = event.getAction(); 3402 final int metaState = event.getMetaState(); 3403 switch (action) { 3404 case MotionEvent.ACTION_DOWN: 3405 x.reset(2); 3406 y.reset(2); 3407 enqueueInputEvent(new KeyEvent(curTime, curTime, 3408 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3409 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3410 InputDevice.SOURCE_KEYBOARD)); 3411 break; 3412 case MotionEvent.ACTION_UP: 3413 x.reset(2); 3414 y.reset(2); 3415 enqueueInputEvent(new KeyEvent(curTime, curTime, 3416 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3417 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3418 InputDevice.SOURCE_KEYBOARD)); 3419 break; 3420 } 3421 3422 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3423 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3424 + " move=" + event.getX() 3425 + " / Y=" + y.position + " step=" 3426 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3427 + " move=" + event.getY()); 3428 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3429 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3430 3431 // Generate DPAD events based on the trackball movement. 3432 // We pick the axis that has moved the most as the direction of 3433 // the DPAD. When we generate DPAD events for one axis, then the 3434 // other axis is reset -- we don't want to perform DPAD jumps due 3435 // to slight movements in the trackball when making major movements 3436 // along the other axis. 3437 int keycode = 0; 3438 int movement = 0; 3439 float accel = 1; 3440 if (xOff > yOff) { 3441 movement = x.generate((2/event.getXPrecision())); 3442 if (movement != 0) { 3443 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3444 : KeyEvent.KEYCODE_DPAD_LEFT; 3445 accel = x.acceleration; 3446 y.reset(2); 3447 } 3448 } else if (yOff > 0) { 3449 movement = y.generate((2/event.getYPrecision())); 3450 if (movement != 0) { 3451 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3452 : KeyEvent.KEYCODE_DPAD_UP; 3453 accel = y.acceleration; 3454 x.reset(2); 3455 } 3456 } 3457 3458 if (keycode != 0) { 3459 if (movement < 0) movement = -movement; 3460 int accelMovement = (int)(movement * accel); 3461 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3462 + " accelMovement=" + accelMovement 3463 + " accel=" + accel); 3464 if (accelMovement > movement) { 3465 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3466 + keycode); 3467 movement--; 3468 int repeatCount = accelMovement - movement; 3469 enqueueInputEvent(new KeyEvent(curTime, curTime, 3470 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3471 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3472 InputDevice.SOURCE_KEYBOARD)); 3473 } 3474 while (movement > 0) { 3475 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3476 + keycode); 3477 movement--; 3478 curTime = SystemClock.uptimeMillis(); 3479 enqueueInputEvent(new KeyEvent(curTime, curTime, 3480 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3481 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3482 InputDevice.SOURCE_KEYBOARD)); 3483 enqueueInputEvent(new KeyEvent(curTime, curTime, 3484 KeyEvent.ACTION_UP, keycode, 0, metaState, 3485 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3486 InputDevice.SOURCE_KEYBOARD)); 3487 } 3488 mLastTrackballTime = curTime; 3489 } 3490 3491 // Unfortunately we can't tell whether the application consumed the keys, so 3492 // we always consider the trackball event handled. 3493 return EVENT_HANDLED; 3494 } 3495 3496 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3497 final MotionEvent event = (MotionEvent)q.mEvent; 3498 if (mInputEventConsistencyVerifier != null) { 3499 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3500 } 3501 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3502 if (LOCAL_LOGV) 3503 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3504 3505 // Dispatch to the IME before propagating down the view hierarchy. 3506 // The IME will eventually call back into handleImeFinishedEvent. 3507 if (mLastWasImTarget) { 3508 InputMethodManager imm = InputMethodManager.peekInstance(); 3509 if (imm != null) { 3510 final int seq = event.getSequenceNumber(); 3511 if (DEBUG_IMF) 3512 Log.v(TAG, "Sending generic motion event to IME: seq=" 3513 + seq + " event=" + event); 3514 int result = imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3515 mInputMethodCallback); 3516 if (result != EVENT_NOT_HANDLED) { 3517 return result; 3518 } 3519 } 3520 } 3521 } 3522 3523 // Not dispatching to IME, continue with post IME actions. 3524 return deliverGenericMotionEventPostIme(q); 3525 } 3526 3527 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3528 final MotionEvent event = (MotionEvent) q.mEvent; 3529 final int source = event.getSource(); 3530 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3531 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3532 3533 // If there is no view, then the event will not be handled. 3534 if (mView == null || !mAdded) { 3535 if (isJoystick) { 3536 updateJoystickDirection(event, false); 3537 } else if (isTouchPad) { 3538 //Convert TouchPad motion into a TrackBall event 3539 mSimulatedTrackball.updateTrackballDirection(this, event); 3540 } 3541 return EVENT_NOT_HANDLED; 3542 } 3543 3544 // Deliver the event to the view. 3545 if (mView.dispatchGenericMotionEvent(event)) { 3546 if (isJoystick) { 3547 updateJoystickDirection(event, false); 3548 } else if (isTouchPad) { 3549 //Convert TouchPad motion into a TrackBall event 3550 mSimulatedTrackball.updateTrackballDirection(this, event); 3551 } 3552 return EVENT_HANDLED; 3553 } 3554 3555 if (isJoystick) { 3556 // Translate the joystick event into DPAD keys and try to deliver 3557 // those. 3558 updateJoystickDirection(event, true); 3559 return EVENT_HANDLED; 3560 } 3561 if (isTouchPad) { 3562 //Convert TouchPad motion into a TrackBall event 3563 mSimulatedTrackball.updateTrackballDirection(this, event); 3564 return EVENT_HANDLED; 3565 } 3566 return EVENT_NOT_HANDLED; 3567 } 3568 3569 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3570 final long time = event.getEventTime(); 3571 final int metaState = event.getMetaState(); 3572 final int deviceId = event.getDeviceId(); 3573 final int source = event.getSource(); 3574 3575 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3576 if (xDirection == 0) { 3577 xDirection = joystickAxisValueToDirection(event.getX()); 3578 } 3579 3580 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3581 if (yDirection == 0) { 3582 yDirection = joystickAxisValueToDirection(event.getY()); 3583 } 3584 3585 if (xDirection != mLastJoystickXDirection) { 3586 if (mLastJoystickXKeyCode != 0) { 3587 enqueueInputEvent(new KeyEvent(time, time, 3588 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3589 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3590 mLastJoystickXKeyCode = 0; 3591 } 3592 3593 mLastJoystickXDirection = xDirection; 3594 3595 if (xDirection != 0 && synthesizeNewKeys) { 3596 mLastJoystickXKeyCode = xDirection > 0 3597 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3598 enqueueInputEvent(new KeyEvent(time, time, 3599 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3600 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3601 } 3602 } 3603 3604 if (yDirection != mLastJoystickYDirection) { 3605 if (mLastJoystickYKeyCode != 0) { 3606 enqueueInputEvent(new KeyEvent(time, time, 3607 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3608 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3609 mLastJoystickYKeyCode = 0; 3610 } 3611 3612 mLastJoystickYDirection = yDirection; 3613 3614 if (yDirection != 0 && synthesizeNewKeys) { 3615 mLastJoystickYKeyCode = yDirection > 0 3616 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3617 enqueueInputEvent(new KeyEvent(time, time, 3618 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3619 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3620 } 3621 } 3622 } 3623 3624 private static int joystickAxisValueToDirection(float value) { 3625 if (value >= 0.5f) { 3626 return 1; 3627 } else if (value <= -0.5f) { 3628 return -1; 3629 } else { 3630 return 0; 3631 } 3632 } 3633 3634 /** 3635 * Returns true if the key is used for keyboard navigation. 3636 * @param keyEvent The key event. 3637 * @return True if the key is used for keyboard navigation. 3638 */ 3639 private static boolean isNavigationKey(KeyEvent keyEvent) { 3640 switch (keyEvent.getKeyCode()) { 3641 case KeyEvent.KEYCODE_DPAD_LEFT: 3642 case KeyEvent.KEYCODE_DPAD_RIGHT: 3643 case KeyEvent.KEYCODE_DPAD_UP: 3644 case KeyEvent.KEYCODE_DPAD_DOWN: 3645 case KeyEvent.KEYCODE_DPAD_CENTER: 3646 case KeyEvent.KEYCODE_PAGE_UP: 3647 case KeyEvent.KEYCODE_PAGE_DOWN: 3648 case KeyEvent.KEYCODE_MOVE_HOME: 3649 case KeyEvent.KEYCODE_MOVE_END: 3650 case KeyEvent.KEYCODE_TAB: 3651 case KeyEvent.KEYCODE_SPACE: 3652 case KeyEvent.KEYCODE_ENTER: 3653 return true; 3654 } 3655 return false; 3656 } 3657 3658 /** 3659 * Returns true if the key is used for typing. 3660 * @param keyEvent The key event. 3661 * @return True if the key is used for typing. 3662 */ 3663 private static boolean isTypingKey(KeyEvent keyEvent) { 3664 return keyEvent.getUnicodeChar() > 0; 3665 } 3666 3667 /** 3668 * See if the key event means we should leave touch mode (and leave touch mode if so). 3669 * @param event The key event. 3670 * @return Whether this key event should be consumed (meaning the act of 3671 * leaving touch mode alone is considered the event). 3672 */ 3673 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3674 // Only relevant in touch mode. 3675 if (!mAttachInfo.mInTouchMode) { 3676 return false; 3677 } 3678 3679 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3680 final int action = event.getAction(); 3681 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3682 return false; 3683 } 3684 3685 // Don't leave touch mode if the IME told us not to. 3686 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3687 return false; 3688 } 3689 3690 // If the key can be used for keyboard navigation then leave touch mode 3691 // and select a focused view if needed (in ensureTouchMode). 3692 // When a new focused view is selected, we consume the navigation key because 3693 // navigation doesn't make much sense unless a view already has focus so 3694 // the key's purpose is to set focus. 3695 if (isNavigationKey(event)) { 3696 return ensureTouchMode(false); 3697 } 3698 3699 // If the key can be used for typing then leave touch mode 3700 // and select a focused view if needed (in ensureTouchMode). 3701 // Always allow the view to process the typing key. 3702 if (isTypingKey(event)) { 3703 ensureTouchMode(false); 3704 return false; 3705 } 3706 3707 return false; 3708 } 3709 3710 private int deliverKeyEvent(QueuedInputEvent q) { 3711 final KeyEvent event = (KeyEvent)q.mEvent; 3712 if (mInputEventConsistencyVerifier != null) { 3713 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3714 } 3715 3716 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3717 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3718 3719 // Perform predispatching before the IME. 3720 if (mView.dispatchKeyEventPreIme(event)) { 3721 return EVENT_HANDLED; 3722 } 3723 3724 // Dispatch to the IME before propagating down the view hierarchy. 3725 // The IME will eventually call back into handleImeFinishedEvent. 3726 if (mLastWasImTarget) { 3727 InputMethodManager imm = InputMethodManager.peekInstance(); 3728 if (imm != null) { 3729 final int seq = event.getSequenceNumber(); 3730 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3731 + seq + " event=" + event); 3732 int result = imm.dispatchKeyEvent(mView.getContext(), seq, event, 3733 mInputMethodCallback); 3734 if (result != EVENT_NOT_HANDLED) { 3735 return result; 3736 } 3737 } 3738 } 3739 } 3740 3741 // Not dispatching to IME, continue with post IME actions. 3742 return deliverKeyEventPostIme(q); 3743 } 3744 3745 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3746 final KeyEvent event = (KeyEvent)q.mEvent; 3747 3748 // If the view went away, then the event will not be handled. 3749 if (mView == null || !mAdded) { 3750 return EVENT_NOT_HANDLED; 3751 } 3752 3753 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3754 if (checkForLeavingTouchModeAndConsume(event)) { 3755 return EVENT_HANDLED; 3756 } 3757 3758 // Make sure the fallback event policy sees all keys that will be delivered to the 3759 // view hierarchy. 3760 mFallbackEventHandler.preDispatchKeyEvent(event); 3761 3762 // Deliver the key to the view hierarchy. 3763 if (mView.dispatchKeyEvent(event)) { 3764 return EVENT_HANDLED; 3765 } 3766 3767 // If the Control modifier is held, try to interpret the key as a shortcut. 3768 if (event.getAction() == KeyEvent.ACTION_DOWN 3769 && event.isCtrlPressed() 3770 && event.getRepeatCount() == 0 3771 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3772 if (mView.dispatchKeyShortcutEvent(event)) { 3773 return EVENT_HANDLED; 3774 } 3775 } 3776 3777 // Apply the fallback event policy. 3778 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3779 return EVENT_HANDLED; 3780 } 3781 3782 // Handle automatic focus changes. 3783 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3784 int direction = 0; 3785 switch (event.getKeyCode()) { 3786 case KeyEvent.KEYCODE_DPAD_LEFT: 3787 if (event.hasNoModifiers()) { 3788 direction = View.FOCUS_LEFT; 3789 } 3790 break; 3791 case KeyEvent.KEYCODE_DPAD_RIGHT: 3792 if (event.hasNoModifiers()) { 3793 direction = View.FOCUS_RIGHT; 3794 } 3795 break; 3796 case KeyEvent.KEYCODE_DPAD_UP: 3797 if (event.hasNoModifiers()) { 3798 direction = View.FOCUS_UP; 3799 } 3800 break; 3801 case KeyEvent.KEYCODE_DPAD_DOWN: 3802 if (event.hasNoModifiers()) { 3803 direction = View.FOCUS_DOWN; 3804 } 3805 break; 3806 case KeyEvent.KEYCODE_TAB: 3807 if (event.hasNoModifiers()) { 3808 direction = View.FOCUS_FORWARD; 3809 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3810 direction = View.FOCUS_BACKWARD; 3811 } 3812 break; 3813 } 3814 if (direction != 0) { 3815 View focused = mView.findFocus(); 3816 if (focused != null) { 3817 View v = focused.focusSearch(direction); 3818 if (v != null && v != focused) { 3819 // do the math the get the interesting rect 3820 // of previous focused into the coord system of 3821 // newly focused view 3822 focused.getFocusedRect(mTempRect); 3823 if (mView instanceof ViewGroup) { 3824 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3825 focused, mTempRect); 3826 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3827 v, mTempRect); 3828 } 3829 if (v.requestFocus(direction, mTempRect)) { 3830 playSoundEffect(SoundEffectConstants 3831 .getContantForFocusDirection(direction)); 3832 return EVENT_HANDLED; 3833 } 3834 } 3835 3836 // Give the focused view a last chance to handle the dpad key. 3837 if (mView.dispatchUnhandledMove(focused, direction)) { 3838 return EVENT_HANDLED; 3839 } 3840 } 3841 } 3842 } 3843 3844 // Key was unhandled. 3845 return EVENT_NOT_HANDLED; 3846 } 3847 3848 /* drag/drop */ 3849 void setLocalDragState(Object obj) { 3850 mLocalDragState = obj; 3851 } 3852 3853 private void handleDragEvent(DragEvent event) { 3854 // From the root, only drag start/end/location are dispatched. entered/exited 3855 // are determined and dispatched by the viewgroup hierarchy, who then report 3856 // that back here for ultimate reporting back to the framework. 3857 if (mView != null && mAdded) { 3858 final int what = event.mAction; 3859 3860 if (what == DragEvent.ACTION_DRAG_EXITED) { 3861 // A direct EXITED event means that the window manager knows we've just crossed 3862 // a window boundary, so the current drag target within this one must have 3863 // just been exited. Send it the usual notifications and then we're done 3864 // for now. 3865 mView.dispatchDragEvent(event); 3866 } else { 3867 // Cache the drag description when the operation starts, then fill it in 3868 // on subsequent calls as a convenience 3869 if (what == DragEvent.ACTION_DRAG_STARTED) { 3870 mCurrentDragView = null; // Start the current-recipient tracking 3871 mDragDescription = event.mClipDescription; 3872 } else { 3873 event.mClipDescription = mDragDescription; 3874 } 3875 3876 // For events with a [screen] location, translate into window coordinates 3877 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3878 mDragPoint.set(event.mX, event.mY); 3879 if (mTranslator != null) { 3880 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3881 } 3882 3883 if (mCurScrollY != 0) { 3884 mDragPoint.offset(0, mCurScrollY); 3885 } 3886 3887 event.mX = mDragPoint.x; 3888 event.mY = mDragPoint.y; 3889 } 3890 3891 // Remember who the current drag target is pre-dispatch 3892 final View prevDragView = mCurrentDragView; 3893 3894 // Now dispatch the drag/drop event 3895 boolean result = mView.dispatchDragEvent(event); 3896 3897 // If we changed apparent drag target, tell the OS about it 3898 if (prevDragView != mCurrentDragView) { 3899 try { 3900 if (prevDragView != null) { 3901 mWindowSession.dragRecipientExited(mWindow); 3902 } 3903 if (mCurrentDragView != null) { 3904 mWindowSession.dragRecipientEntered(mWindow); 3905 } 3906 } catch (RemoteException e) { 3907 Slog.e(TAG, "Unable to note drag target change"); 3908 } 3909 } 3910 3911 // Report the drop result when we're done 3912 if (what == DragEvent.ACTION_DROP) { 3913 mDragDescription = null; 3914 try { 3915 Log.i(TAG, "Reporting drop result: " + result); 3916 mWindowSession.reportDropResult(mWindow, result); 3917 } catch (RemoteException e) { 3918 Log.e(TAG, "Unable to report drop result"); 3919 } 3920 } 3921 3922 // When the drag operation ends, release any local state object 3923 // that may have been in use 3924 if (what == DragEvent.ACTION_DRAG_ENDED) { 3925 setLocalDragState(null); 3926 } 3927 } 3928 } 3929 event.recycle(); 3930 } 3931 3932 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3933 if (mSeq != args.seq) { 3934 // The sequence has changed, so we need to update our value and make 3935 // sure to do a traversal afterward so the window manager is given our 3936 // most recent data. 3937 mSeq = args.seq; 3938 mAttachInfo.mForceReportNewAttributes = true; 3939 scheduleTraversals(); 3940 } 3941 if (mView == null) return; 3942 if (args.localChanges != 0) { 3943 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3944 } 3945 if (mAttachInfo != null) { 3946 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3947 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3948 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3949 mView.dispatchSystemUiVisibilityChanged(visibility); 3950 } 3951 } 3952 } 3953 3954 public void handleDispatchDoneAnimating() { 3955 if (mWindowsAnimating) { 3956 mWindowsAnimating = false; 3957 if (!mDirty.isEmpty() || mIsAnimating) { 3958 scheduleTraversals(); 3959 } 3960 } 3961 } 3962 3963 public void getLastTouchPoint(Point outLocation) { 3964 outLocation.x = (int) mLastTouchPoint.x; 3965 outLocation.y = (int) mLastTouchPoint.y; 3966 } 3967 3968 public void setDragFocus(View newDragTarget) { 3969 if (mCurrentDragView != newDragTarget) { 3970 mCurrentDragView = newDragTarget; 3971 } 3972 } 3973 3974 private AudioManager getAudioManager() { 3975 if (mView == null) { 3976 throw new IllegalStateException("getAudioManager called when there is no mView"); 3977 } 3978 if (mAudioManager == null) { 3979 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3980 } 3981 return mAudioManager; 3982 } 3983 3984 public AccessibilityInteractionController getAccessibilityInteractionController() { 3985 if (mView == null) { 3986 throw new IllegalStateException("getAccessibilityInteractionController" 3987 + " called when there is no mView"); 3988 } 3989 if (mAccessibilityInteractionController == null) { 3990 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3991 } 3992 return mAccessibilityInteractionController; 3993 } 3994 3995 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3996 boolean insetsPending) throws RemoteException { 3997 3998 float appScale = mAttachInfo.mApplicationScale; 3999 boolean restore = false; 4000 if (params != null && mTranslator != null) { 4001 restore = true; 4002 params.backup(); 4003 mTranslator.translateWindowLayout(params); 4004 } 4005 if (params != null) { 4006 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4007 } 4008 mPendingConfiguration.seq = 0; 4009 //Log.d(TAG, ">>>>>> CALLING relayout"); 4010 if (params != null && mOrigWindowType != params.type) { 4011 // For compatibility with old apps, don't crash here. 4012 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4013 Slog.w(TAG, "Window type can not be changed after " 4014 + "the window is added; ignoring change of " + mView); 4015 params.type = mOrigWindowType; 4016 } 4017 } 4018 int relayoutResult = mWindowSession.relayout( 4019 mWindow, mSeq, params, 4020 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4021 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4022 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4023 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 4024 mPendingConfiguration, mSurface); 4025 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4026 if (restore) { 4027 params.restore(); 4028 } 4029 4030 if (mTranslator != null) { 4031 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4032 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4033 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4034 } 4035 return relayoutResult; 4036 } 4037 4038 /** 4039 * {@inheritDoc} 4040 */ 4041 public void playSoundEffect(int effectId) { 4042 checkThread(); 4043 4044 try { 4045 final AudioManager audioManager = getAudioManager(); 4046 4047 switch (effectId) { 4048 case SoundEffectConstants.CLICK: 4049 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4050 return; 4051 case SoundEffectConstants.NAVIGATION_DOWN: 4052 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4053 return; 4054 case SoundEffectConstants.NAVIGATION_LEFT: 4055 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4056 return; 4057 case SoundEffectConstants.NAVIGATION_RIGHT: 4058 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4059 return; 4060 case SoundEffectConstants.NAVIGATION_UP: 4061 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4062 return; 4063 default: 4064 throw new IllegalArgumentException("unknown effect id " + effectId + 4065 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4066 } 4067 } catch (IllegalStateException e) { 4068 // Exception thrown by getAudioManager() when mView is null 4069 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4070 e.printStackTrace(); 4071 } 4072 } 4073 4074 /** 4075 * {@inheritDoc} 4076 */ 4077 public boolean performHapticFeedback(int effectId, boolean always) { 4078 try { 4079 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4080 } catch (RemoteException e) { 4081 return false; 4082 } 4083 } 4084 4085 /** 4086 * {@inheritDoc} 4087 */ 4088 public View focusSearch(View focused, int direction) { 4089 checkThread(); 4090 if (!(mView instanceof ViewGroup)) { 4091 return null; 4092 } 4093 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4094 } 4095 4096 public void debug() { 4097 mView.debug(); 4098 } 4099 4100 public void dumpGfxInfo(int[] info) { 4101 info[0] = info[1] = 0; 4102 if (mView != null) { 4103 getGfxInfo(mView, info); 4104 } 4105 } 4106 4107 private static void getGfxInfo(View view, int[] info) { 4108 DisplayList displayList = view.mDisplayList; 4109 info[0]++; 4110 if (displayList != null) { 4111 info[1] += displayList.getSize(); 4112 } 4113 4114 if (view instanceof ViewGroup) { 4115 ViewGroup group = (ViewGroup) view; 4116 4117 int count = group.getChildCount(); 4118 for (int i = 0; i < count; i++) { 4119 getGfxInfo(group.getChildAt(i), info); 4120 } 4121 } 4122 } 4123 4124 public void die(boolean immediate) { 4125 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4126 // done by dispatchDetachedFromWindow will cause havoc on return. 4127 if (immediate && !mIsInTraversal) { 4128 doDie(); 4129 } else { 4130 if (!mIsDrawing) { 4131 destroyHardwareRenderer(); 4132 } else { 4133 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4134 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4135 } 4136 mHandler.sendEmptyMessage(MSG_DIE); 4137 } 4138 } 4139 4140 void doDie() { 4141 checkThread(); 4142 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4143 synchronized (this) { 4144 if (mAdded) { 4145 dispatchDetachedFromWindow(); 4146 } 4147 4148 if (mAdded && !mFirst) { 4149 invalidateDisplayLists(); 4150 destroyHardwareRenderer(); 4151 4152 if (mView != null) { 4153 int viewVisibility = mView.getVisibility(); 4154 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4155 if (mWindowAttributesChanged || viewVisibilityChanged) { 4156 // If layout params have been changed, first give them 4157 // to the window manager to make sure it has the correct 4158 // animation info. 4159 try { 4160 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4161 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4162 mWindowSession.finishDrawing(mWindow); 4163 } 4164 } catch (RemoteException e) { 4165 } 4166 } 4167 4168 mSurface.release(); 4169 } 4170 } 4171 4172 mAdded = false; 4173 } 4174 } 4175 4176 public void requestUpdateConfiguration(Configuration config) { 4177 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4178 mHandler.sendMessage(msg); 4179 } 4180 4181 public void loadSystemProperties() { 4182 mHandler.post(new Runnable() { 4183 @Override 4184 public void run() { 4185 // Profiling 4186 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4187 profileRendering(mAttachInfo.mHasWindowFocus); 4188 4189 // Hardware rendering 4190 if (mAttachInfo.mHardwareRenderer != null) { 4191 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4192 invalidate(); 4193 } 4194 } 4195 4196 // Layout debugging 4197 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4198 if (layout != mAttachInfo.mDebugLayout) { 4199 mAttachInfo.mDebugLayout = layout; 4200 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4201 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4202 } 4203 } 4204 } 4205 }); 4206 } 4207 4208 private void destroyHardwareRenderer() { 4209 AttachInfo attachInfo = mAttachInfo; 4210 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4211 4212 if (hardwareRenderer != null) { 4213 if (mView != null) { 4214 hardwareRenderer.destroyHardwareResources(mView); 4215 } 4216 hardwareRenderer.destroy(true); 4217 hardwareRenderer.setRequested(false); 4218 4219 attachInfo.mHardwareRenderer = null; 4220 attachInfo.mHardwareAccelerated = false; 4221 } 4222 } 4223 4224 void dispatchImeFinishedEvent(int seq, boolean handled) { 4225 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4226 msg.arg1 = seq; 4227 msg.arg2 = handled ? 1 : 0; 4228 msg.setAsynchronous(true); 4229 mHandler.sendMessage(msg); 4230 } 4231 4232 public void dispatchFinishInputConnection(InputConnection connection) { 4233 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4234 mHandler.sendMessage(msg); 4235 } 4236 4237 public void dispatchResized(Rect frame, Rect contentInsets, 4238 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4239 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4240 + " contentInsets=" + contentInsets.toShortString() 4241 + " visibleInsets=" + visibleInsets.toShortString() 4242 + " reportDraw=" + reportDraw); 4243 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4244 if (mTranslator != null) { 4245 mTranslator.translateRectInScreenToAppWindow(frame); 4246 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4247 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4248 } 4249 SomeArgs args = SomeArgs.obtain(); 4250 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4251 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4252 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4253 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4254 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4255 msg.obj = args; 4256 mHandler.sendMessage(msg); 4257 } 4258 4259 public void dispatchMoved(int newX, int newY) { 4260 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4261 if (mTranslator != null) { 4262 PointF point = new PointF(newX, newY); 4263 mTranslator.translatePointInScreenToAppWindow(point); 4264 newX = (int) (point.x + 0.5); 4265 newY = (int) (point.y + 0.5); 4266 } 4267 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4268 mHandler.sendMessage(msg); 4269 } 4270 4271 /** 4272 * Represents a pending input event that is waiting in a queue. 4273 * 4274 * Input events are processed in serial order by the timestamp specified by 4275 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4276 * one input event to the application at a time and waits for the application 4277 * to finish handling it before delivering the next one. 4278 * 4279 * However, because the application or IME can synthesize and inject multiple 4280 * key events at a time without going through the input dispatcher, we end up 4281 * needing a queue on the application's side. 4282 */ 4283 private static final class QueuedInputEvent { 4284 public static final int FLAG_DELIVER_POST_IME = 1; 4285 4286 public QueuedInputEvent mNext; 4287 4288 public InputEvent mEvent; 4289 public InputEventReceiver mReceiver; 4290 public int mFlags; 4291 } 4292 4293 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4294 InputEventReceiver receiver, int flags) { 4295 QueuedInputEvent q = mQueuedInputEventPool; 4296 if (q != null) { 4297 mQueuedInputEventPoolSize -= 1; 4298 mQueuedInputEventPool = q.mNext; 4299 q.mNext = null; 4300 } else { 4301 q = new QueuedInputEvent(); 4302 } 4303 4304 q.mEvent = event; 4305 q.mReceiver = receiver; 4306 q.mFlags = flags; 4307 return q; 4308 } 4309 4310 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4311 q.mEvent = null; 4312 q.mReceiver = null; 4313 4314 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4315 mQueuedInputEventPoolSize += 1; 4316 q.mNext = mQueuedInputEventPool; 4317 mQueuedInputEventPool = q; 4318 } 4319 } 4320 4321 void enqueueInputEvent(InputEvent event) { 4322 enqueueInputEvent(event, null, 0, false); 4323 } 4324 4325 void enqueueInputEvent(InputEvent event, 4326 InputEventReceiver receiver, int flags, boolean processImmediately) { 4327 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4328 4329 // Always enqueue the input event in order, regardless of its time stamp. 4330 // We do this because the application or the IME may inject key events 4331 // in response to touch events and we want to ensure that the injected keys 4332 // are processed in the order they were received and we cannot trust that 4333 // the time stamp of injected events are monotonic. 4334 QueuedInputEvent last = mFirstPendingInputEvent; 4335 if (last == null) { 4336 mFirstPendingInputEvent = q; 4337 } else { 4338 while (last.mNext != null) { 4339 last = last.mNext; 4340 } 4341 last.mNext = q; 4342 } 4343 4344 if (processImmediately) { 4345 doProcessInputEvents(); 4346 } else { 4347 scheduleProcessInputEvents(); 4348 } 4349 } 4350 4351 private void scheduleProcessInputEvents() { 4352 if (!mProcessInputEventsScheduled) { 4353 mProcessInputEventsScheduled = true; 4354 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4355 msg.setAsynchronous(true); 4356 mHandler.sendMessage(msg); 4357 } 4358 } 4359 4360 void doProcessInputEvents() { 4361 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4362 QueuedInputEvent q = mFirstPendingInputEvent; 4363 mFirstPendingInputEvent = q.mNext; 4364 q.mNext = null; 4365 mCurrentInputEvent = q; 4366 4367 final int result = deliverInputEvent(q); 4368 if (result != EVENT_IN_PROGRESS) { 4369 finishCurrentInputEvent(result == EVENT_HANDLED); 4370 } 4371 } 4372 4373 // We are done processing all input events that we can process right now 4374 // so we can clear the pending flag immediately. 4375 if (mProcessInputEventsScheduled) { 4376 mProcessInputEventsScheduled = false; 4377 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4378 } 4379 } 4380 4381 void handleImeFinishedEvent(int seq, boolean handled) { 4382 final QueuedInputEvent q = mCurrentInputEvent; 4383 if (q != null && q.mEvent.getSequenceNumber() == seq) { 4384 if (DEBUG_IMF) { 4385 Log.v(TAG, "IME finished event: seq=" + seq 4386 + " handled=" + handled + " event=" + q); 4387 } 4388 4389 if (!handled) { 4390 // If the window doesn't currently have input focus, then drop 4391 // this event. This could be an event that came back from the 4392 // IME dispatch but the window has lost focus in the meantime. 4393 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4394 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4395 } else { 4396 final int result = deliverInputEventPostIme(q); 4397 if (result == EVENT_HANDLED) { 4398 handled = true; 4399 } 4400 } 4401 } 4402 finishCurrentInputEvent(handled); 4403 4404 // Immediately start processing the next input event. 4405 doProcessInputEvents(); 4406 } else { 4407 if (DEBUG_IMF) { 4408 Log.v(TAG, "IME finished event: seq=" + seq 4409 + " handled=" + handled + ", event not found!"); 4410 } 4411 } 4412 } 4413 4414 private void finishCurrentInputEvent(boolean handled) { 4415 final QueuedInputEvent q = mCurrentInputEvent; 4416 mCurrentInputEvent = null; 4417 4418 if (q.mReceiver != null) { 4419 q.mReceiver.finishInputEvent(q.mEvent, handled); 4420 } else { 4421 q.mEvent.recycleIfNeededAfterDispatch(); 4422 } 4423 4424 recycleQueuedInputEvent(q); 4425 } 4426 4427 private static boolean isTerminalInputEvent(InputEvent event) { 4428 if (event instanceof KeyEvent) { 4429 final KeyEvent keyEvent = (KeyEvent)event; 4430 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4431 } else { 4432 final MotionEvent motionEvent = (MotionEvent)event; 4433 final int action = motionEvent.getAction(); 4434 return action == MotionEvent.ACTION_UP 4435 || action == MotionEvent.ACTION_CANCEL 4436 || action == MotionEvent.ACTION_HOVER_EXIT; 4437 } 4438 } 4439 4440 void scheduleConsumeBatchedInput() { 4441 if (!mConsumeBatchedInputScheduled) { 4442 mConsumeBatchedInputScheduled = true; 4443 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4444 mConsumedBatchedInputRunnable, null); 4445 } 4446 } 4447 4448 void unscheduleConsumeBatchedInput() { 4449 if (mConsumeBatchedInputScheduled) { 4450 mConsumeBatchedInputScheduled = false; 4451 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4452 mConsumedBatchedInputRunnable, null); 4453 } 4454 } 4455 4456 void doConsumeBatchedInput(long frameTimeNanos) { 4457 if (mConsumeBatchedInputScheduled) { 4458 mConsumeBatchedInputScheduled = false; 4459 if (mInputEventReceiver != null) { 4460 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4461 } 4462 doProcessInputEvents(); 4463 } 4464 } 4465 4466 final class TraversalRunnable implements Runnable { 4467 @Override 4468 public void run() { 4469 doTraversal(); 4470 } 4471 } 4472 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4473 4474 final class WindowInputEventReceiver extends InputEventReceiver { 4475 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4476 super(inputChannel, looper); 4477 } 4478 4479 @Override 4480 public void onInputEvent(InputEvent event) { 4481 enqueueInputEvent(event, this, 0, true); 4482 } 4483 4484 @Override 4485 public void onBatchedInputEventPending() { 4486 scheduleConsumeBatchedInput(); 4487 } 4488 4489 @Override 4490 public void dispose() { 4491 unscheduleConsumeBatchedInput(); 4492 super.dispose(); 4493 } 4494 } 4495 WindowInputEventReceiver mInputEventReceiver; 4496 4497 final class ConsumeBatchedInputRunnable implements Runnable { 4498 @Override 4499 public void run() { 4500 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4501 } 4502 } 4503 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4504 new ConsumeBatchedInputRunnable(); 4505 boolean mConsumeBatchedInputScheduled; 4506 4507 final class InvalidateOnAnimationRunnable implements Runnable { 4508 private boolean mPosted; 4509 private ArrayList<View> mViews = new ArrayList<View>(); 4510 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4511 new ArrayList<AttachInfo.InvalidateInfo>(); 4512 private View[] mTempViews; 4513 private AttachInfo.InvalidateInfo[] mTempViewRects; 4514 4515 public void addView(View view) { 4516 synchronized (this) { 4517 mViews.add(view); 4518 postIfNeededLocked(); 4519 } 4520 } 4521 4522 public void addViewRect(AttachInfo.InvalidateInfo info) { 4523 synchronized (this) { 4524 mViewRects.add(info); 4525 postIfNeededLocked(); 4526 } 4527 } 4528 4529 public void removeView(View view) { 4530 synchronized (this) { 4531 mViews.remove(view); 4532 4533 for (int i = mViewRects.size(); i-- > 0; ) { 4534 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4535 if (info.target == view) { 4536 mViewRects.remove(i); 4537 info.recycle(); 4538 } 4539 } 4540 4541 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4542 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4543 mPosted = false; 4544 } 4545 } 4546 } 4547 4548 @Override 4549 public void run() { 4550 final int viewCount; 4551 final int viewRectCount; 4552 synchronized (this) { 4553 mPosted = false; 4554 4555 viewCount = mViews.size(); 4556 if (viewCount != 0) { 4557 mTempViews = mViews.toArray(mTempViews != null 4558 ? mTempViews : new View[viewCount]); 4559 mViews.clear(); 4560 } 4561 4562 viewRectCount = mViewRects.size(); 4563 if (viewRectCount != 0) { 4564 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4565 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4566 mViewRects.clear(); 4567 } 4568 } 4569 4570 for (int i = 0; i < viewCount; i++) { 4571 mTempViews[i].invalidate(); 4572 mTempViews[i] = null; 4573 } 4574 4575 for (int i = 0; i < viewRectCount; i++) { 4576 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4577 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4578 info.recycle(); 4579 } 4580 } 4581 4582 private void postIfNeededLocked() { 4583 if (!mPosted) { 4584 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4585 mPosted = true; 4586 } 4587 } 4588 } 4589 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4590 new InvalidateOnAnimationRunnable(); 4591 4592 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4593 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4594 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4595 } 4596 4597 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4598 long delayMilliseconds) { 4599 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4600 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4601 } 4602 4603 public void dispatchInvalidateOnAnimation(View view) { 4604 mInvalidateOnAnimationRunnable.addView(view); 4605 } 4606 4607 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4608 mInvalidateOnAnimationRunnable.addViewRect(info); 4609 } 4610 4611 public void enqueueDisplayList(DisplayList displayList) { 4612 mDisplayLists.add(displayList); 4613 } 4614 4615 public void cancelInvalidate(View view) { 4616 mHandler.removeMessages(MSG_INVALIDATE, view); 4617 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4618 // them to the pool 4619 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4620 mInvalidateOnAnimationRunnable.removeView(view); 4621 } 4622 4623 public void dispatchKey(KeyEvent event) { 4624 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4625 msg.setAsynchronous(true); 4626 mHandler.sendMessage(msg); 4627 } 4628 4629 public void dispatchKeyFromIme(KeyEvent event) { 4630 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4631 msg.setAsynchronous(true); 4632 mHandler.sendMessage(msg); 4633 } 4634 4635 public void dispatchUnhandledKey(KeyEvent event) { 4636 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4637 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4638 final int keyCode = event.getKeyCode(); 4639 final int metaState = event.getMetaState(); 4640 4641 // Check for fallback actions specified by the key character map. 4642 KeyCharacterMap.FallbackAction fallbackAction = 4643 kcm.getFallbackAction(keyCode, metaState); 4644 if (fallbackAction != null) { 4645 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4646 KeyEvent fallbackEvent = KeyEvent.obtain( 4647 event.getDownTime(), event.getEventTime(), 4648 event.getAction(), fallbackAction.keyCode, 4649 event.getRepeatCount(), fallbackAction.metaState, 4650 event.getDeviceId(), event.getScanCode(), 4651 flags, event.getSource(), null); 4652 fallbackAction.recycle(); 4653 4654 dispatchKey(fallbackEvent); 4655 } 4656 } 4657 } 4658 4659 public void dispatchAppVisibility(boolean visible) { 4660 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4661 msg.arg1 = visible ? 1 : 0; 4662 mHandler.sendMessage(msg); 4663 } 4664 4665 public void dispatchScreenStateChange(boolean on) { 4666 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4667 msg.arg1 = on ? 1 : 0; 4668 mHandler.sendMessage(msg); 4669 } 4670 4671 public void dispatchGetNewSurface() { 4672 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4673 mHandler.sendMessage(msg); 4674 } 4675 4676 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4677 Message msg = Message.obtain(); 4678 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4679 msg.arg1 = hasFocus ? 1 : 0; 4680 msg.arg2 = inTouchMode ? 1 : 0; 4681 mHandler.sendMessage(msg); 4682 } 4683 4684 public void dispatchCloseSystemDialogs(String reason) { 4685 Message msg = Message.obtain(); 4686 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4687 msg.obj = reason; 4688 mHandler.sendMessage(msg); 4689 } 4690 4691 public void dispatchDragEvent(DragEvent event) { 4692 final int what; 4693 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4694 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4695 mHandler.removeMessages(what); 4696 } else { 4697 what = MSG_DISPATCH_DRAG_EVENT; 4698 } 4699 Message msg = mHandler.obtainMessage(what, event); 4700 mHandler.sendMessage(msg); 4701 } 4702 4703 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4704 int localValue, int localChanges) { 4705 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4706 args.seq = seq; 4707 args.globalVisibility = globalVisibility; 4708 args.localValue = localValue; 4709 args.localChanges = localChanges; 4710 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4711 } 4712 4713 public void dispatchDoneAnimating() { 4714 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4715 } 4716 4717 public void dispatchCheckFocus() { 4718 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4719 // This will result in a call to checkFocus() below. 4720 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4721 } 4722 } 4723 4724 /** 4725 * Post a callback to send a 4726 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4727 * This event is send at most once every 4728 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4729 */ 4730 private void postSendWindowContentChangedCallback(View source) { 4731 if (mSendWindowContentChangedAccessibilityEvent == null) { 4732 mSendWindowContentChangedAccessibilityEvent = 4733 new SendWindowContentChangedAccessibilityEvent(); 4734 } 4735 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4736 if (oldSource == null) { 4737 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4738 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4739 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4740 } else { 4741 mSendWindowContentChangedAccessibilityEvent.mSource = 4742 getCommonPredecessor(oldSource, source); 4743 } 4744 } 4745 4746 /** 4747 * Remove a posted callback to send a 4748 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4749 */ 4750 private void removeSendWindowContentChangedCallback() { 4751 if (mSendWindowContentChangedAccessibilityEvent != null) { 4752 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4753 } 4754 } 4755 4756 public boolean showContextMenuForChild(View originalView) { 4757 return false; 4758 } 4759 4760 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4761 return null; 4762 } 4763 4764 public void createContextMenu(ContextMenu menu) { 4765 } 4766 4767 public void childDrawableStateChanged(View child) { 4768 } 4769 4770 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4771 if (mView == null) { 4772 return false; 4773 } 4774 // Intercept accessibility focus events fired by virtual nodes to keep 4775 // track of accessibility focus position in such nodes. 4776 final int eventType = event.getEventType(); 4777 switch (eventType) { 4778 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4779 final long sourceNodeId = event.getSourceNodeId(); 4780 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4781 sourceNodeId); 4782 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4783 if (source != null) { 4784 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4785 if (provider != null) { 4786 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4787 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4788 setAccessibilityFocus(source, node); 4789 } 4790 } 4791 } break; 4792 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4793 final long sourceNodeId = event.getSourceNodeId(); 4794 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4795 sourceNodeId); 4796 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4797 if (source != null) { 4798 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4799 if (provider != null) { 4800 setAccessibilityFocus(null, null); 4801 } 4802 } 4803 } break; 4804 } 4805 mAccessibilityManager.sendAccessibilityEvent(event); 4806 return true; 4807 } 4808 4809 @Override 4810 public void childAccessibilityStateChanged(View child) { 4811 postSendWindowContentChangedCallback(child); 4812 } 4813 4814 private View getCommonPredecessor(View first, View second) { 4815 if (mAttachInfo != null) { 4816 if (mTempHashSet == null) { 4817 mTempHashSet = new HashSet<View>(); 4818 } 4819 HashSet<View> seen = mTempHashSet; 4820 seen.clear(); 4821 View firstCurrent = first; 4822 while (firstCurrent != null) { 4823 seen.add(firstCurrent); 4824 ViewParent firstCurrentParent = firstCurrent.mParent; 4825 if (firstCurrentParent instanceof View) { 4826 firstCurrent = (View) firstCurrentParent; 4827 } else { 4828 firstCurrent = null; 4829 } 4830 } 4831 View secondCurrent = second; 4832 while (secondCurrent != null) { 4833 if (seen.contains(secondCurrent)) { 4834 seen.clear(); 4835 return secondCurrent; 4836 } 4837 ViewParent secondCurrentParent = secondCurrent.mParent; 4838 if (secondCurrentParent instanceof View) { 4839 secondCurrent = (View) secondCurrentParent; 4840 } else { 4841 secondCurrent = null; 4842 } 4843 } 4844 seen.clear(); 4845 } 4846 return null; 4847 } 4848 4849 void checkThread() { 4850 if (mThread != Thread.currentThread()) { 4851 throw new CalledFromWrongThreadException( 4852 "Only the original thread that created a view hierarchy can touch its views."); 4853 } 4854 } 4855 4856 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4857 // ViewAncestor never intercepts touch event, so this can be a no-op 4858 } 4859 4860 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4861 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4862 if (rectangle != null) { 4863 mTempRect.set(rectangle); 4864 mTempRect.offset(0, -mCurScrollY); 4865 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4866 try { 4867 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4868 } catch (RemoteException re) { 4869 /* ignore */ 4870 } 4871 } 4872 return scrolled; 4873 } 4874 4875 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4876 // Do nothing. 4877 } 4878 4879 class TakenSurfaceHolder extends BaseSurfaceHolder { 4880 @Override 4881 public boolean onAllowLockCanvas() { 4882 return mDrawingAllowed; 4883 } 4884 4885 @Override 4886 public void onRelayoutContainer() { 4887 // Not currently interesting -- from changing between fixed and layout size. 4888 } 4889 4890 public void setFormat(int format) { 4891 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4892 } 4893 4894 public void setType(int type) { 4895 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4896 } 4897 4898 @Override 4899 public void onUpdateSurface() { 4900 // We take care of format and type changes on our own. 4901 throw new IllegalStateException("Shouldn't be here"); 4902 } 4903 4904 public boolean isCreating() { 4905 return mIsCreating; 4906 } 4907 4908 @Override 4909 public void setFixedSize(int width, int height) { 4910 throw new UnsupportedOperationException( 4911 "Currently only support sizing from layout"); 4912 } 4913 4914 public void setKeepScreenOn(boolean screenOn) { 4915 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4916 } 4917 } 4918 4919 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4920 private WeakReference<ViewRootImpl> mViewAncestor; 4921 4922 public InputMethodCallback(ViewRootImpl viewAncestor) { 4923 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4924 } 4925 4926 @Override 4927 public void finishedEvent(int seq, boolean handled) { 4928 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4929 if (viewAncestor != null) { 4930 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4931 } 4932 } 4933 } 4934 4935 static class W extends IWindow.Stub { 4936 private final WeakReference<ViewRootImpl> mViewAncestor; 4937 private final IWindowSession mWindowSession; 4938 4939 W(ViewRootImpl viewAncestor) { 4940 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4941 mWindowSession = viewAncestor.mWindowSession; 4942 } 4943 4944 public void resized(Rect frame, Rect contentInsets, 4945 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4946 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4947 if (viewAncestor != null) { 4948 viewAncestor.dispatchResized(frame, contentInsets, 4949 visibleInsets, reportDraw, newConfig); 4950 } 4951 } 4952 4953 @Override 4954 public void moved(int newX, int newY) { 4955 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4956 if (viewAncestor != null) { 4957 viewAncestor.dispatchMoved(newX, newY); 4958 } 4959 } 4960 4961 public void dispatchAppVisibility(boolean visible) { 4962 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4963 if (viewAncestor != null) { 4964 viewAncestor.dispatchAppVisibility(visible); 4965 } 4966 } 4967 4968 public void dispatchScreenState(boolean on) { 4969 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4970 if (viewAncestor != null) { 4971 viewAncestor.dispatchScreenStateChange(on); 4972 } 4973 } 4974 4975 public void dispatchGetNewSurface() { 4976 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4977 if (viewAncestor != null) { 4978 viewAncestor.dispatchGetNewSurface(); 4979 } 4980 } 4981 4982 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4983 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4984 if (viewAncestor != null) { 4985 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4986 } 4987 } 4988 4989 private static int checkCallingPermission(String permission) { 4990 try { 4991 return ActivityManagerNative.getDefault().checkPermission( 4992 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4993 } catch (RemoteException e) { 4994 return PackageManager.PERMISSION_DENIED; 4995 } 4996 } 4997 4998 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4999 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5000 if (viewAncestor != null) { 5001 final View view = viewAncestor.mView; 5002 if (view != null) { 5003 if (checkCallingPermission(Manifest.permission.DUMP) != 5004 PackageManager.PERMISSION_GRANTED) { 5005 throw new SecurityException("Insufficient permissions to invoke" 5006 + " executeCommand() from pid=" + Binder.getCallingPid() 5007 + ", uid=" + Binder.getCallingUid()); 5008 } 5009 5010 OutputStream clientStream = null; 5011 try { 5012 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5013 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5014 } catch (IOException e) { 5015 e.printStackTrace(); 5016 } finally { 5017 if (clientStream != null) { 5018 try { 5019 clientStream.close(); 5020 } catch (IOException e) { 5021 e.printStackTrace(); 5022 } 5023 } 5024 } 5025 } 5026 } 5027 } 5028 5029 public void closeSystemDialogs(String reason) { 5030 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5031 if (viewAncestor != null) { 5032 viewAncestor.dispatchCloseSystemDialogs(reason); 5033 } 5034 } 5035 5036 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5037 boolean sync) { 5038 if (sync) { 5039 try { 5040 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5041 } catch (RemoteException e) { 5042 } 5043 } 5044 } 5045 5046 public void dispatchWallpaperCommand(String action, int x, int y, 5047 int z, Bundle extras, boolean sync) { 5048 if (sync) { 5049 try { 5050 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5051 } catch (RemoteException e) { 5052 } 5053 } 5054 } 5055 5056 /* Drag/drop */ 5057 public void dispatchDragEvent(DragEvent event) { 5058 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5059 if (viewAncestor != null) { 5060 viewAncestor.dispatchDragEvent(event); 5061 } 5062 } 5063 5064 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5065 int localValue, int localChanges) { 5066 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5067 if (viewAncestor != null) { 5068 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5069 localValue, localChanges); 5070 } 5071 } 5072 5073 public void doneAnimating() { 5074 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5075 if (viewAncestor != null) { 5076 viewAncestor.dispatchDoneAnimating(); 5077 } 5078 } 5079 } 5080 5081 /** 5082 * Maintains state information for a single trackball axis, generating 5083 * discrete (DPAD) movements based on raw trackball motion. 5084 */ 5085 static final class TrackballAxis { 5086 /** 5087 * The maximum amount of acceleration we will apply. 5088 */ 5089 static final float MAX_ACCELERATION = 20; 5090 5091 /** 5092 * The maximum amount of time (in milliseconds) between events in order 5093 * for us to consider the user to be doing fast trackball movements, 5094 * and thus apply an acceleration. 5095 */ 5096 static final long FAST_MOVE_TIME = 150; 5097 5098 /** 5099 * Scaling factor to the time (in milliseconds) between events to how 5100 * much to multiple/divide the current acceleration. When movement 5101 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5102 * FAST_MOVE_TIME it divides it. 5103 */ 5104 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5105 5106 float position; 5107 float absPosition; 5108 float acceleration = 1; 5109 long lastMoveTime = 0; 5110 int step; 5111 int dir; 5112 int nonAccelMovement; 5113 5114 void reset(int _step) { 5115 position = 0; 5116 acceleration = 1; 5117 lastMoveTime = 0; 5118 step = _step; 5119 dir = 0; 5120 } 5121 5122 /** 5123 * Add trackball movement into the state. If the direction of movement 5124 * has been reversed, the state is reset before adding the 5125 * movement (so that you don't have to compensate for any previously 5126 * collected movement before see the result of the movement in the 5127 * new direction). 5128 * 5129 * @return Returns the absolute value of the amount of movement 5130 * collected so far. 5131 */ 5132 float collect(float off, long time, String axis) { 5133 long normTime; 5134 if (off > 0) { 5135 normTime = (long)(off * FAST_MOVE_TIME); 5136 if (dir < 0) { 5137 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5138 position = 0; 5139 step = 0; 5140 acceleration = 1; 5141 lastMoveTime = 0; 5142 } 5143 dir = 1; 5144 } else if (off < 0) { 5145 normTime = (long)((-off) * FAST_MOVE_TIME); 5146 if (dir > 0) { 5147 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5148 position = 0; 5149 step = 0; 5150 acceleration = 1; 5151 lastMoveTime = 0; 5152 } 5153 dir = -1; 5154 } else { 5155 normTime = 0; 5156 } 5157 5158 // The number of milliseconds between each movement that is 5159 // considered "normal" and will not result in any acceleration 5160 // or deceleration, scaled by the offset we have here. 5161 if (normTime > 0) { 5162 long delta = time - lastMoveTime; 5163 lastMoveTime = time; 5164 float acc = acceleration; 5165 if (delta < normTime) { 5166 // The user is scrolling rapidly, so increase acceleration. 5167 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5168 if (scale > 1) acc *= scale; 5169 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5170 + off + " normTime=" + normTime + " delta=" + delta 5171 + " scale=" + scale + " acc=" + acc); 5172 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5173 } else { 5174 // The user is scrolling slowly, so decrease acceleration. 5175 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5176 if (scale > 1) acc /= scale; 5177 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5178 + off + " normTime=" + normTime + " delta=" + delta 5179 + " scale=" + scale + " acc=" + acc); 5180 acceleration = acc > 1 ? acc : 1; 5181 } 5182 } 5183 position += off; 5184 return (absPosition = Math.abs(position)); 5185 } 5186 5187 /** 5188 * Generate the number of discrete movement events appropriate for 5189 * the currently collected trackball movement. 5190 * 5191 * @param precision The minimum movement required to generate the 5192 * first discrete movement. 5193 * 5194 * @return Returns the number of discrete movements, either positive 5195 * or negative, or 0 if there is not enough trackball movement yet 5196 * for a discrete movement. 5197 */ 5198 int generate(float precision) { 5199 int movement = 0; 5200 nonAccelMovement = 0; 5201 do { 5202 final int dir = position >= 0 ? 1 : -1; 5203 switch (step) { 5204 // If we are going to execute the first step, then we want 5205 // to do this as soon as possible instead of waiting for 5206 // a full movement, in order to make things look responsive. 5207 case 0: 5208 if (absPosition < precision) { 5209 return movement; 5210 } 5211 movement += dir; 5212 nonAccelMovement += dir; 5213 step = 1; 5214 break; 5215 // If we have generated the first movement, then we need 5216 // to wait for the second complete trackball motion before 5217 // generating the second discrete movement. 5218 case 1: 5219 if (absPosition < 2) { 5220 return movement; 5221 } 5222 movement += dir; 5223 nonAccelMovement += dir; 5224 position += dir > 0 ? -2 : 2; 5225 absPosition = Math.abs(position); 5226 step = 2; 5227 break; 5228 // After the first two, we generate discrete movements 5229 // consistently with the trackball, applying an acceleration 5230 // if the trackball is moving quickly. This is a simple 5231 // acceleration on top of what we already compute based 5232 // on how quickly the wheel is being turned, to apply 5233 // a longer increasing acceleration to continuous movement 5234 // in one direction. 5235 default: 5236 if (absPosition < 1) { 5237 return movement; 5238 } 5239 movement += dir; 5240 position += dir >= 0 ? -1 : 1; 5241 absPosition = Math.abs(position); 5242 float acc = acceleration; 5243 acc *= 1.1f; 5244 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5245 break; 5246 } 5247 } while (true); 5248 } 5249 } 5250 5251 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5252 public CalledFromWrongThreadException(String msg) { 5253 super(msg); 5254 } 5255 } 5256 5257 private SurfaceHolder mHolder = new SurfaceHolder() { 5258 // we only need a SurfaceHolder for opengl. it would be nice 5259 // to implement everything else though, especially the callback 5260 // support (opengl doesn't make use of it right now, but eventually 5261 // will). 5262 public Surface getSurface() { 5263 return mSurface; 5264 } 5265 5266 public boolean isCreating() { 5267 return false; 5268 } 5269 5270 public void addCallback(Callback callback) { 5271 } 5272 5273 public void removeCallback(Callback callback) { 5274 } 5275 5276 public void setFixedSize(int width, int height) { 5277 } 5278 5279 public void setSizeFromLayout() { 5280 } 5281 5282 public void setFormat(int format) { 5283 } 5284 5285 public void setType(int type) { 5286 } 5287 5288 public void setKeepScreenOn(boolean screenOn) { 5289 } 5290 5291 public Canvas lockCanvas() { 5292 return null; 5293 } 5294 5295 public Canvas lockCanvas(Rect dirty) { 5296 return null; 5297 } 5298 5299 public void unlockCanvasAndPost(Canvas canvas) { 5300 } 5301 public Rect getSurfaceFrame() { 5302 return null; 5303 } 5304 }; 5305 5306 static RunQueue getRunQueue() { 5307 RunQueue rq = sRunQueues.get(); 5308 if (rq != null) { 5309 return rq; 5310 } 5311 rq = new RunQueue(); 5312 sRunQueues.set(rq); 5313 return rq; 5314 } 5315 5316 /** 5317 * The run queue is used to enqueue pending work from Views when no Handler is 5318 * attached. The work is executed during the next call to performTraversals on 5319 * the thread. 5320 * @hide 5321 */ 5322 static final class RunQueue { 5323 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5324 5325 void post(Runnable action) { 5326 postDelayed(action, 0); 5327 } 5328 5329 void postDelayed(Runnable action, long delayMillis) { 5330 HandlerAction handlerAction = new HandlerAction(); 5331 handlerAction.action = action; 5332 handlerAction.delay = delayMillis; 5333 5334 synchronized (mActions) { 5335 mActions.add(handlerAction); 5336 } 5337 } 5338 5339 void removeCallbacks(Runnable action) { 5340 final HandlerAction handlerAction = new HandlerAction(); 5341 handlerAction.action = action; 5342 5343 synchronized (mActions) { 5344 final ArrayList<HandlerAction> actions = mActions; 5345 5346 while (actions.remove(handlerAction)) { 5347 // Keep going 5348 } 5349 } 5350 } 5351 5352 void executeActions(Handler handler) { 5353 synchronized (mActions) { 5354 final ArrayList<HandlerAction> actions = mActions; 5355 final int count = actions.size(); 5356 5357 for (int i = 0; i < count; i++) { 5358 final HandlerAction handlerAction = actions.get(i); 5359 handler.postDelayed(handlerAction.action, handlerAction.delay); 5360 } 5361 5362 actions.clear(); 5363 } 5364 } 5365 5366 private static class HandlerAction { 5367 Runnable action; 5368 long delay; 5369 5370 @Override 5371 public boolean equals(Object o) { 5372 if (this == o) return true; 5373 if (o == null || getClass() != o.getClass()) return false; 5374 5375 HandlerAction that = (HandlerAction) o; 5376 return !(action != null ? !action.equals(that.action) : that.action != null); 5377 5378 } 5379 5380 @Override 5381 public int hashCode() { 5382 int result = action != null ? action.hashCode() : 0; 5383 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5384 return result; 5385 } 5386 } 5387 } 5388 5389 /** 5390 * Class for managing the accessibility interaction connection 5391 * based on the global accessibility state. 5392 */ 5393 final class AccessibilityInteractionConnectionManager 5394 implements AccessibilityStateChangeListener { 5395 public void onAccessibilityStateChanged(boolean enabled) { 5396 if (enabled) { 5397 ensureConnection(); 5398 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5399 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5400 View focusedView = mView.findFocus(); 5401 if (focusedView != null && focusedView != mView) { 5402 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5403 } 5404 } 5405 } else { 5406 ensureNoConnection(); 5407 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5408 } 5409 } 5410 5411 public void ensureConnection() { 5412 if (mAttachInfo != null) { 5413 final boolean registered = 5414 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5415 if (!registered) { 5416 mAttachInfo.mAccessibilityWindowId = 5417 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5418 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5419 } 5420 } 5421 } 5422 5423 public void ensureNoConnection() { 5424 final boolean registered = 5425 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5426 if (registered) { 5427 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5428 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5429 } 5430 } 5431 } 5432 5433 /** 5434 * This class is an interface this ViewAncestor provides to the 5435 * AccessibilityManagerService to the latter can interact with 5436 * the view hierarchy in this ViewAncestor. 5437 */ 5438 static final class AccessibilityInteractionConnection 5439 extends IAccessibilityInteractionConnection.Stub { 5440 private final WeakReference<ViewRootImpl> mViewRootImpl; 5441 5442 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5443 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5444 } 5445 5446 @Override 5447 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5448 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5449 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5450 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5451 if (viewRootImpl != null && viewRootImpl.mView != null) { 5452 viewRootImpl.getAccessibilityInteractionController() 5453 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5454 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5455 spec); 5456 } else { 5457 // We cannot make the call and notify the caller so it does not wait. 5458 try { 5459 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5460 } catch (RemoteException re) { 5461 /* best effort - ignore */ 5462 } 5463 } 5464 } 5465 5466 @Override 5467 public void performAccessibilityAction(long accessibilityNodeId, int action, 5468 Bundle arguments, int interactionId, 5469 IAccessibilityInteractionConnectionCallback callback, int flags, 5470 int interogatingPid, long interrogatingTid) { 5471 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5472 if (viewRootImpl != null && viewRootImpl.mView != null) { 5473 viewRootImpl.getAccessibilityInteractionController() 5474 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5475 interactionId, callback, flags, interogatingPid, interrogatingTid); 5476 } else { 5477 // We cannot make the call and notify the caller so it does not wait. 5478 try { 5479 callback.setPerformAccessibilityActionResult(false, interactionId); 5480 } catch (RemoteException re) { 5481 /* best effort - ignore */ 5482 } 5483 } 5484 } 5485 5486 @Override 5487 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5488 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5489 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5490 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5491 if (viewRootImpl != null && viewRootImpl.mView != null) { 5492 viewRootImpl.getAccessibilityInteractionController() 5493 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5494 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5495 spec); 5496 } else { 5497 // We cannot make the call and notify the caller so it does not wait. 5498 try { 5499 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5500 } catch (RemoteException re) { 5501 /* best effort - ignore */ 5502 } 5503 } 5504 } 5505 5506 @Override 5507 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5508 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5509 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5510 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5511 if (viewRootImpl != null && viewRootImpl.mView != null) { 5512 viewRootImpl.getAccessibilityInteractionController() 5513 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5514 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5515 spec); 5516 } else { 5517 // We cannot make the call and notify the caller so it does not wait. 5518 try { 5519 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5520 } catch (RemoteException re) { 5521 /* best effort - ignore */ 5522 } 5523 } 5524 } 5525 5526 @Override 5527 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5528 IAccessibilityInteractionConnectionCallback callback, int flags, 5529 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5530 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5531 if (viewRootImpl != null && viewRootImpl.mView != null) { 5532 viewRootImpl.getAccessibilityInteractionController() 5533 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5534 flags, interrogatingPid, interrogatingTid, spec); 5535 } else { 5536 // We cannot make the call and notify the caller so it does not wait. 5537 try { 5538 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5539 } catch (RemoteException re) { 5540 /* best effort - ignore */ 5541 } 5542 } 5543 } 5544 5545 @Override 5546 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5547 IAccessibilityInteractionConnectionCallback callback, int flags, 5548 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5549 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5550 if (viewRootImpl != null && viewRootImpl.mView != null) { 5551 viewRootImpl.getAccessibilityInteractionController() 5552 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5553 callback, flags, interrogatingPid, interrogatingTid, spec); 5554 } else { 5555 // We cannot make the call and notify the caller so it does not wait. 5556 try { 5557 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5558 } catch (RemoteException re) { 5559 /* best effort - ignore */ 5560 } 5561 } 5562 } 5563 } 5564 5565 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5566 public View mSource; 5567 5568 public void run() { 5569 if (mSource != null) { 5570 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5571 mSource.resetAccessibilityStateChanged(); 5572 mSource = null; 5573 } 5574 } 5575 } 5576} 5577