ViewRootImpl.java revision ae4f3204ec2c9251e0e408816e74502079cd1a6c
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 SimulatedDpad mSimulatedDpad; 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 mSimulatedDpad = new SimulatedDpad(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.mHardwareRenderer.setName(attrs.getTitle().toString()); 743 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 744 = mAttachInfo.mHardwareRenderer != null; 745 746 } else if (fakeHwAccelerated) { 747 // The window had wanted to use hardware acceleration, but this 748 // is not allowed in its process. By setting this flag, it can 749 // still render as if it was accelerated. This is basically for 750 // the preview windows the window manager shows for launching 751 // applications, so they will look more like the app being launched. 752 mAttachInfo.mHardwareAccelerationRequested = true; 753 } 754 } 755 } 756 757 public View getView() { 758 return mView; 759 } 760 761 final WindowLeaked getLocation() { 762 return mLocation; 763 } 764 765 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 766 synchronized (this) { 767 int oldSoftInputMode = mWindowAttributes.softInputMode; 768 // Keep track of the actual window flags supplied by the client. 769 mClientWindowLayoutFlags = attrs.flags; 770 // preserve compatible window flag if exists. 771 int compatibleWindowFlag = 772 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 773 // transfer over system UI visibility values as they carry current state. 774 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 775 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 776 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 777 mWindowAttributes.flags |= compatibleWindowFlag; 778 779 applyKeepScreenOnFlag(mWindowAttributes); 780 781 if (newView) { 782 mSoftInputMode = attrs.softInputMode; 783 requestLayout(); 784 } 785 // Don't lose the mode we last auto-computed. 786 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 787 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 788 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 789 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 790 | (oldSoftInputMode 791 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 792 } 793 mWindowAttributesChanged = true; 794 scheduleTraversals(); 795 } 796 } 797 798 void handleAppVisibility(boolean visible) { 799 if (mAppVisible != visible) { 800 mAppVisible = visible; 801 scheduleTraversals(); 802 } 803 } 804 805 void handleGetNewSurface() { 806 mNewSurfaceNeeded = true; 807 mFullRedrawNeeded = true; 808 scheduleTraversals(); 809 } 810 811 void handleScreenStateChange(boolean on) { 812 if (on != mAttachInfo.mScreenOn) { 813 mAttachInfo.mScreenOn = on; 814 if (mView != null) { 815 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 816 } 817 if (on) { 818 mFullRedrawNeeded = true; 819 scheduleTraversals(); 820 } 821 } 822 } 823 824 @Override 825 public void requestFitSystemWindows() { 826 checkThread(); 827 mFitSystemWindowsRequested = true; 828 scheduleTraversals(); 829 } 830 831 @Override 832 public void requestLayout() { 833 if (!mHandlingLayoutInLayoutRequest) { 834 checkThread(); 835 mLayoutRequested = true; 836 scheduleTraversals(); 837 } 838 } 839 840 @Override 841 public boolean isLayoutRequested() { 842 return mLayoutRequested; 843 } 844 845 void invalidate() { 846 mDirty.set(0, 0, mWidth, mHeight); 847 scheduleTraversals(); 848 } 849 850 void invalidateWorld(View view) { 851 view.invalidate(); 852 if (view instanceof ViewGroup) { 853 ViewGroup parent = (ViewGroup) view; 854 for (int i = 0; i < parent.getChildCount(); i++) { 855 invalidateWorld(parent.getChildAt(i)); 856 } 857 } 858 } 859 860 @Override 861 public void invalidateChild(View child, Rect dirty) { 862 invalidateChildInParent(null, dirty); 863 } 864 865 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 866 checkThread(); 867 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 868 869 if (dirty == null) { 870 invalidate(); 871 return null; 872 } else if (dirty.isEmpty() && !mIsAnimating) { 873 return null; 874 } 875 876 if (mCurScrollY != 0 || mTranslator != null) { 877 mTempRect.set(dirty); 878 dirty = mTempRect; 879 if (mCurScrollY != 0) { 880 dirty.offset(0, -mCurScrollY); 881 } 882 if (mTranslator != null) { 883 mTranslator.translateRectInAppWindowToScreen(dirty); 884 } 885 if (mAttachInfo.mScalingRequired) { 886 dirty.inset(-1, -1); 887 } 888 } 889 890 final Rect localDirty = mDirty; 891 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 892 mAttachInfo.mSetIgnoreDirtyState = true; 893 mAttachInfo.mIgnoreDirtyState = true; 894 } 895 896 // Add the new dirty rect to the current one 897 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 898 // Intersect with the bounds of the window to skip 899 // updates that lie outside of the visible region 900 final float appScale = mAttachInfo.mApplicationScale; 901 final boolean intersected = localDirty.intersect(0, 0, 902 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 903 if (!intersected) { 904 localDirty.setEmpty(); 905 } 906 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 907 scheduleTraversals(); 908 } 909 910 return null; 911 } 912 913 void setStopped(boolean stopped) { 914 if (mStopped != stopped) { 915 mStopped = stopped; 916 if (!stopped) { 917 scheduleTraversals(); 918 } 919 } 920 } 921 922 public ViewParent getParent() { 923 return null; 924 } 925 926 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 927 if (child != mView) { 928 throw new RuntimeException("child is not mine, honest!"); 929 } 930 // Note: don't apply scroll offset, because we want to know its 931 // visibility in the virtual canvas being given to the view hierarchy. 932 return r.intersect(0, 0, mWidth, mHeight); 933 } 934 935 public void bringChildToFront(View child) { 936 } 937 938 int getHostVisibility() { 939 return mAppVisible ? mView.getVisibility() : View.GONE; 940 } 941 942 void disposeResizeBuffer() { 943 if (mResizeBuffer != null) { 944 mResizeBuffer.destroy(); 945 mResizeBuffer = null; 946 } 947 } 948 949 /** 950 * Add LayoutTransition to the list of transitions to be started in the next traversal. 951 * This list will be cleared after the transitions on the list are start()'ed. These 952 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 953 * happens during the layout phase of traversal, which we want to complete before any of the 954 * animations are started (because those animations may side-effect properties that layout 955 * depends upon, like the bounding rectangles of the affected views). So we add the transition 956 * to the list and it is started just prior to starting the drawing phase of traversal. 957 * 958 * @param transition The LayoutTransition to be started on the next traversal. 959 * 960 * @hide 961 */ 962 public void requestTransitionStart(LayoutTransition transition) { 963 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 964 if (mPendingTransitions == null) { 965 mPendingTransitions = new ArrayList<LayoutTransition>(); 966 } 967 mPendingTransitions.add(transition); 968 } 969 } 970 971 void scheduleTraversals() { 972 if (!mTraversalScheduled) { 973 mTraversalScheduled = true; 974 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 975 mChoreographer.postCallback( 976 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 977 scheduleConsumeBatchedInput(); 978 } 979 } 980 981 void unscheduleTraversals() { 982 if (mTraversalScheduled) { 983 mTraversalScheduled = false; 984 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 985 mChoreographer.removeCallbacks( 986 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 987 } 988 } 989 990 void doTraversal() { 991 if (mTraversalScheduled) { 992 mTraversalScheduled = false; 993 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 994 995 if (mProfile) { 996 Debug.startMethodTracing("ViewAncestor"); 997 } 998 999 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1000 try { 1001 performTraversals(); 1002 } finally { 1003 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1004 } 1005 1006 if (mProfile) { 1007 Debug.stopMethodTracing(); 1008 mProfile = false; 1009 } 1010 } 1011 } 1012 1013 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1014 // Update window's global keep screen on flag: if a view has requested 1015 // that the screen be kept on, then it is always set; otherwise, it is 1016 // set to whatever the client last requested for the global state. 1017 if (mAttachInfo.mKeepScreenOn) { 1018 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1019 } else { 1020 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1021 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1022 } 1023 } 1024 1025 private boolean collectViewAttributes() { 1026 final View.AttachInfo attachInfo = mAttachInfo; 1027 if (attachInfo.mRecomputeGlobalAttributes) { 1028 //Log.i(TAG, "Computing view hierarchy attributes!"); 1029 attachInfo.mRecomputeGlobalAttributes = false; 1030 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1031 attachInfo.mKeepScreenOn = false; 1032 attachInfo.mSystemUiVisibility = 0; 1033 attachInfo.mHasSystemUiListeners = false; 1034 mView.dispatchCollectViewAttributes(attachInfo, 0); 1035 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1036 WindowManager.LayoutParams params = mWindowAttributes; 1037 if (attachInfo.mKeepScreenOn != oldScreenOn 1038 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1039 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1040 applyKeepScreenOnFlag(params); 1041 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1042 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1043 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1044 return true; 1045 } 1046 } 1047 return false; 1048 } 1049 1050 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1051 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1052 int childWidthMeasureSpec; 1053 int childHeightMeasureSpec; 1054 boolean windowSizeMayChange = false; 1055 1056 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1057 "Measuring " + host + " in display " + desiredWindowWidth 1058 + "x" + desiredWindowHeight + "..."); 1059 1060 boolean goodMeasure = false; 1061 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1062 // On large screens, we don't want to allow dialogs to just 1063 // stretch to fill the entire width of the screen to display 1064 // one line of text. First try doing the layout at a smaller 1065 // size to see if it will fit. 1066 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1067 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1068 int baseSize = 0; 1069 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1070 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1071 } 1072 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1073 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1074 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1075 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1076 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1077 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1078 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1079 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1080 goodMeasure = true; 1081 } else { 1082 // Didn't fit in that size... try expanding a bit. 1083 baseSize = (baseSize+desiredWindowWidth)/2; 1084 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1085 + baseSize); 1086 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1087 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1088 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1089 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1090 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1091 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1092 goodMeasure = true; 1093 } 1094 } 1095 } 1096 } 1097 1098 if (!goodMeasure) { 1099 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1100 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1101 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1102 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1103 windowSizeMayChange = true; 1104 } 1105 } 1106 1107 if (DBG) { 1108 System.out.println("======================================"); 1109 System.out.println("performTraversals -- after measure"); 1110 host.debug(); 1111 } 1112 1113 return windowSizeMayChange; 1114 } 1115 1116 private void performTraversals() { 1117 // cache mView since it is used so much below... 1118 final View host = mView; 1119 1120 if (DBG) { 1121 System.out.println("======================================"); 1122 System.out.println("performTraversals"); 1123 host.debug(); 1124 } 1125 1126 if (host == null || !mAdded) 1127 return; 1128 1129 mIsInTraversal = true; 1130 mWillDrawSoon = true; 1131 boolean windowSizeMayChange = false; 1132 boolean newSurface = false; 1133 boolean surfaceChanged = false; 1134 WindowManager.LayoutParams lp = mWindowAttributes; 1135 1136 int desiredWindowWidth; 1137 int desiredWindowHeight; 1138 1139 final View.AttachInfo attachInfo = mAttachInfo; 1140 1141 final int viewVisibility = getHostVisibility(); 1142 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1143 || mNewSurfaceNeeded; 1144 1145 WindowManager.LayoutParams params = null; 1146 if (mWindowAttributesChanged) { 1147 mWindowAttributesChanged = false; 1148 surfaceChanged = true; 1149 params = lp; 1150 } 1151 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1152 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1153 params = lp; 1154 mFullRedrawNeeded = true; 1155 mLayoutRequested = true; 1156 if (mLastInCompatMode) { 1157 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1158 mLastInCompatMode = false; 1159 } else { 1160 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1161 mLastInCompatMode = true; 1162 } 1163 } 1164 1165 mWindowAttributesChangesFlag = 0; 1166 1167 Rect frame = mWinFrame; 1168 if (mFirst) { 1169 mFullRedrawNeeded = true; 1170 mLayoutRequested = true; 1171 1172 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1173 // NOTE -- system code, won't try to do compat mode. 1174 Point size = new Point(); 1175 mDisplay.getRealSize(size); 1176 desiredWindowWidth = size.x; 1177 desiredWindowHeight = size.y; 1178 } else { 1179 DisplayMetrics packageMetrics = 1180 mView.getContext().getResources().getDisplayMetrics(); 1181 desiredWindowWidth = packageMetrics.widthPixels; 1182 desiredWindowHeight = packageMetrics.heightPixels; 1183 } 1184 1185 // For the very first time, tell the view hierarchy that it 1186 // is attached to the window. Note that at this point the surface 1187 // object is not initialized to its backing store, but soon it 1188 // will be (assuming the window is visible). 1189 attachInfo.mSurface = mSurface; 1190 // We used to use the following condition to choose 32 bits drawing caches: 1191 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1192 // However, windows are now always 32 bits by default, so choose 32 bits 1193 attachInfo.mUse32BitDrawingCache = true; 1194 attachInfo.mHasWindowFocus = false; 1195 attachInfo.mWindowVisibility = viewVisibility; 1196 attachInfo.mRecomputeGlobalAttributes = false; 1197 viewVisibilityChanged = false; 1198 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1199 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1200 // Set the layout direction if it has not been set before (inherit is the default) 1201 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1202 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1203 } 1204 host.dispatchAttachedToWindow(attachInfo, 0); 1205 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1206 host.fitSystemWindows(mFitSystemWindowsInsets); 1207 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1208 1209 } else { 1210 desiredWindowWidth = frame.width(); 1211 desiredWindowHeight = frame.height(); 1212 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1213 if (DEBUG_ORIENTATION) Log.v(TAG, 1214 "View " + host + " resized to: " + frame); 1215 mFullRedrawNeeded = true; 1216 mLayoutRequested = true; 1217 windowSizeMayChange = true; 1218 } 1219 } 1220 1221 if (viewVisibilityChanged) { 1222 attachInfo.mWindowVisibility = viewVisibility; 1223 host.dispatchWindowVisibilityChanged(viewVisibility); 1224 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1225 destroyHardwareResources(); 1226 } 1227 if (viewVisibility == View.GONE) { 1228 // After making a window gone, we will count it as being 1229 // shown for the first time the next time it gets focus. 1230 mHasHadWindowFocus = false; 1231 } 1232 } 1233 1234 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1235 getRunQueue().executeActions(attachInfo.mHandler); 1236 1237 boolean insetsChanged = false; 1238 1239 boolean layoutRequested = mLayoutRequested && !mStopped; 1240 if (layoutRequested) { 1241 1242 final Resources res = mView.getContext().getResources(); 1243 1244 if (mFirst) { 1245 // make sure touch mode code executes by setting cached value 1246 // to opposite of the added touch mode. 1247 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1248 ensureTouchModeLocally(mAddedTouchMode); 1249 } else { 1250 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1251 insetsChanged = true; 1252 } 1253 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1254 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1255 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1256 + mAttachInfo.mVisibleInsets); 1257 } 1258 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1259 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1260 windowSizeMayChange = true; 1261 1262 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1263 // NOTE -- system code, won't try to do compat mode. 1264 Point size = new Point(); 1265 mDisplay.getRealSize(size); 1266 desiredWindowWidth = size.x; 1267 desiredWindowHeight = size.y; 1268 } else { 1269 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1270 desiredWindowWidth = packageMetrics.widthPixels; 1271 desiredWindowHeight = packageMetrics.heightPixels; 1272 } 1273 } 1274 } 1275 1276 // Ask host how big it wants to be 1277 windowSizeMayChange |= measureHierarchy(host, lp, res, 1278 desiredWindowWidth, desiredWindowHeight); 1279 } 1280 1281 if (collectViewAttributes()) { 1282 params = lp; 1283 } 1284 if (attachInfo.mForceReportNewAttributes) { 1285 attachInfo.mForceReportNewAttributes = false; 1286 params = lp; 1287 } 1288 1289 if (mFirst || attachInfo.mViewVisibilityChanged) { 1290 attachInfo.mViewVisibilityChanged = false; 1291 int resizeMode = mSoftInputMode & 1292 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1293 // If we are in auto resize mode, then we need to determine 1294 // what mode to use now. 1295 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1296 final int N = attachInfo.mScrollContainers.size(); 1297 for (int i=0; i<N; i++) { 1298 if (attachInfo.mScrollContainers.get(i).isShown()) { 1299 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1300 } 1301 } 1302 if (resizeMode == 0) { 1303 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1304 } 1305 if ((lp.softInputMode & 1306 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1307 lp.softInputMode = (lp.softInputMode & 1308 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1309 resizeMode; 1310 params = lp; 1311 } 1312 } 1313 } 1314 1315 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1316 if (!PixelFormat.formatHasAlpha(params.format)) { 1317 params.format = PixelFormat.TRANSLUCENT; 1318 } 1319 } 1320 1321 if (mFitSystemWindowsRequested) { 1322 mFitSystemWindowsRequested = false; 1323 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1324 host.fitSystemWindows(mFitSystemWindowsInsets); 1325 if (mLayoutRequested) { 1326 // Short-circuit catching a new layout request here, so 1327 // we don't need to go through two layout passes when things 1328 // change due to fitting system windows, which can happen a lot. 1329 windowSizeMayChange |= measureHierarchy(host, lp, 1330 mView.getContext().getResources(), 1331 desiredWindowWidth, desiredWindowHeight); 1332 } 1333 } 1334 1335 if (layoutRequested) { 1336 // Clear this now, so that if anything requests a layout in the 1337 // rest of this function we will catch it and re-run a full 1338 // layout pass. 1339 mLayoutRequested = false; 1340 } 1341 1342 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1343 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1344 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1345 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1346 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1347 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1348 1349 final boolean computesInternalInsets = 1350 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1351 1352 boolean insetsPending = false; 1353 int relayoutResult = 0; 1354 1355 if (mFirst || windowShouldResize || insetsChanged || 1356 viewVisibilityChanged || params != null) { 1357 1358 if (viewVisibility == View.VISIBLE) { 1359 // If this window is giving internal insets to the window 1360 // manager, and it is being added or changing its visibility, 1361 // then we want to first give the window manager "fake" 1362 // insets to cause it to effectively ignore the content of 1363 // the window during layout. This avoids it briefly causing 1364 // other windows to resize/move based on the raw frame of the 1365 // window, waiting until we can finish laying out this window 1366 // and get back to the window manager with the ultimately 1367 // computed insets. 1368 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1369 } 1370 1371 if (mSurfaceHolder != null) { 1372 mSurfaceHolder.mSurfaceLock.lock(); 1373 mDrawingAllowed = true; 1374 } 1375 1376 boolean hwInitialized = false; 1377 boolean contentInsetsChanged = false; 1378 boolean visibleInsetsChanged; 1379 boolean hadSurface = mSurface.isValid(); 1380 1381 try { 1382 if (DEBUG_LAYOUT) { 1383 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1384 host.getMeasuredHeight() + ", params=" + params); 1385 } 1386 1387 final int surfaceGenerationId = mSurface.getGenerationId(); 1388 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1389 1390 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1391 + " content=" + mPendingContentInsets.toShortString() 1392 + " visible=" + mPendingVisibleInsets.toShortString() 1393 + " surface=" + mSurface); 1394 1395 if (mPendingConfiguration.seq != 0) { 1396 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1397 + mPendingConfiguration); 1398 updateConfiguration(mPendingConfiguration, !mFirst); 1399 mPendingConfiguration.seq = 0; 1400 } 1401 1402 contentInsetsChanged = !mPendingContentInsets.equals( 1403 mAttachInfo.mContentInsets); 1404 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1405 mAttachInfo.mVisibleInsets); 1406 if (contentInsetsChanged) { 1407 if (mWidth > 0 && mHeight > 0 && lp != null && 1408 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1409 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1410 mSurface != null && mSurface.isValid() && 1411 !mAttachInfo.mTurnOffWindowResizeAnim && 1412 mAttachInfo.mHardwareRenderer != null && 1413 mAttachInfo.mHardwareRenderer.isEnabled() && 1414 mAttachInfo.mHardwareRenderer.validate() && 1415 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1416 1417 disposeResizeBuffer(); 1418 1419 boolean completed = false; 1420 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1421 HardwareCanvas layerCanvas = null; 1422 try { 1423 if (mResizeBuffer == null) { 1424 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1425 mWidth, mHeight, false); 1426 } else if (mResizeBuffer.getWidth() != mWidth || 1427 mResizeBuffer.getHeight() != mHeight) { 1428 mResizeBuffer.resize(mWidth, mHeight); 1429 } 1430 // TODO: should handle create/resize failure 1431 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1432 layerCanvas.setViewport(mWidth, mHeight); 1433 layerCanvas.onPreDraw(null); 1434 final int restoreCount = layerCanvas.save(); 1435 1436 int yoff; 1437 final boolean scrolling = mScroller != null 1438 && mScroller.computeScrollOffset(); 1439 if (scrolling) { 1440 yoff = mScroller.getCurrY(); 1441 mScroller.abortAnimation(); 1442 } else { 1443 yoff = mScrollY; 1444 } 1445 1446 layerCanvas.translate(0, -yoff); 1447 if (mTranslator != null) { 1448 mTranslator.translateCanvas(layerCanvas); 1449 } 1450 1451 DisplayList displayList = mView.mDisplayList; 1452 if (displayList != null) { 1453 layerCanvas.drawDisplayList(displayList, null, 1454 DisplayList.FLAG_CLIP_CHILDREN); 1455 } else { 1456 mView.draw(layerCanvas); 1457 } 1458 1459 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1460 1461 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1462 mResizeBufferDuration = mView.getResources().getInteger( 1463 com.android.internal.R.integer.config_mediumAnimTime); 1464 completed = true; 1465 1466 layerCanvas.restoreToCount(restoreCount); 1467 } catch (OutOfMemoryError e) { 1468 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1469 } finally { 1470 if (layerCanvas != null) { 1471 layerCanvas.onPostDraw(); 1472 } 1473 if (mResizeBuffer != null) { 1474 mResizeBuffer.end(hwRendererCanvas); 1475 if (!completed) { 1476 mResizeBuffer.destroy(); 1477 mResizeBuffer = null; 1478 } 1479 } 1480 } 1481 } 1482 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1483 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1484 + mAttachInfo.mContentInsets); 1485 } 1486 if (contentInsetsChanged || mLastSystemUiVisibility != 1487 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1488 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1489 mFitSystemWindowsRequested = false; 1490 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1491 host.fitSystemWindows(mFitSystemWindowsInsets); 1492 } 1493 if (visibleInsetsChanged) { 1494 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1495 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1496 + mAttachInfo.mVisibleInsets); 1497 } 1498 1499 if (!hadSurface) { 1500 if (mSurface.isValid()) { 1501 // If we are creating a new surface, then we need to 1502 // completely redraw it. Also, when we get to the 1503 // point of drawing it we will hold off and schedule 1504 // a new traversal instead. This is so we can tell the 1505 // window manager about all of the windows being displayed 1506 // before actually drawing them, so it can display then 1507 // all at once. 1508 newSurface = true; 1509 mFullRedrawNeeded = true; 1510 mPreviousTransparentRegion.setEmpty(); 1511 1512 if (mAttachInfo.mHardwareRenderer != null) { 1513 try { 1514 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1515 mHolder.getSurface()); 1516 } catch (Surface.OutOfResourcesException e) { 1517 handleOutOfResourcesException(e); 1518 return; 1519 } 1520 } 1521 } 1522 } else if (!mSurface.isValid()) { 1523 // If the surface has been removed, then reset the scroll 1524 // positions. 1525 if (mLastScrolledFocus != null) { 1526 mLastScrolledFocus.clear(); 1527 } 1528 mScrollY = mCurScrollY = 0; 1529 if (mScroller != null) { 1530 mScroller.abortAnimation(); 1531 } 1532 disposeResizeBuffer(); 1533 // Our surface is gone 1534 if (mAttachInfo.mHardwareRenderer != null && 1535 mAttachInfo.mHardwareRenderer.isEnabled()) { 1536 mAttachInfo.mHardwareRenderer.destroy(true); 1537 } 1538 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1539 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1540 mFullRedrawNeeded = true; 1541 try { 1542 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1543 } catch (Surface.OutOfResourcesException e) { 1544 handleOutOfResourcesException(e); 1545 return; 1546 } 1547 } 1548 } catch (RemoteException e) { 1549 } 1550 1551 if (DEBUG_ORIENTATION) Log.v( 1552 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1553 1554 attachInfo.mWindowLeft = frame.left; 1555 attachInfo.mWindowTop = frame.top; 1556 1557 // !!FIXME!! This next section handles the case where we did not get the 1558 // window size we asked for. We should avoid this by getting a maximum size from 1559 // the window session beforehand. 1560 if (mWidth != frame.width() || mHeight != frame.height()) { 1561 mWidth = frame.width(); 1562 mHeight = frame.height(); 1563 } 1564 1565 if (mSurfaceHolder != null) { 1566 // The app owns the surface; tell it about what is going on. 1567 if (mSurface.isValid()) { 1568 // XXX .copyFrom() doesn't work! 1569 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1570 mSurfaceHolder.mSurface = mSurface; 1571 } 1572 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1573 mSurfaceHolder.mSurfaceLock.unlock(); 1574 if (mSurface.isValid()) { 1575 if (!hadSurface) { 1576 mSurfaceHolder.ungetCallbacks(); 1577 1578 mIsCreating = true; 1579 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1580 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1581 if (callbacks != null) { 1582 for (SurfaceHolder.Callback c : callbacks) { 1583 c.surfaceCreated(mSurfaceHolder); 1584 } 1585 } 1586 surfaceChanged = true; 1587 } 1588 if (surfaceChanged) { 1589 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1590 lp.format, mWidth, mHeight); 1591 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1592 if (callbacks != null) { 1593 for (SurfaceHolder.Callback c : callbacks) { 1594 c.surfaceChanged(mSurfaceHolder, lp.format, 1595 mWidth, mHeight); 1596 } 1597 } 1598 } 1599 mIsCreating = false; 1600 } else if (hadSurface) { 1601 mSurfaceHolder.ungetCallbacks(); 1602 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1603 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1604 if (callbacks != null) { 1605 for (SurfaceHolder.Callback c : callbacks) { 1606 c.surfaceDestroyed(mSurfaceHolder); 1607 } 1608 } 1609 mSurfaceHolder.mSurfaceLock.lock(); 1610 try { 1611 mSurfaceHolder.mSurface = new Surface(); 1612 } finally { 1613 mSurfaceHolder.mSurfaceLock.unlock(); 1614 } 1615 } 1616 } 1617 1618 if (mAttachInfo.mHardwareRenderer != null && 1619 mAttachInfo.mHardwareRenderer.isEnabled()) { 1620 if (hwInitialized || windowShouldResize || 1621 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1622 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1623 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1624 if (!hwInitialized) { 1625 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1626 mFullRedrawNeeded = true; 1627 } 1628 } 1629 } 1630 1631 if (!mStopped) { 1632 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1633 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1634 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1635 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1636 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1637 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1638 1639 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1640 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1641 + " mHeight=" + mHeight 1642 + " measuredHeight=" + host.getMeasuredHeight() 1643 + " coveredInsetsChanged=" + contentInsetsChanged); 1644 1645 // Ask host how big it wants to be 1646 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1647 1648 // Implementation of weights from WindowManager.LayoutParams 1649 // We just grow the dimensions as needed and re-measure if 1650 // needs be 1651 int width = host.getMeasuredWidth(); 1652 int height = host.getMeasuredHeight(); 1653 boolean measureAgain = false; 1654 1655 if (lp.horizontalWeight > 0.0f) { 1656 width += (int) ((mWidth - width) * lp.horizontalWeight); 1657 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1658 MeasureSpec.EXACTLY); 1659 measureAgain = true; 1660 } 1661 if (lp.verticalWeight > 0.0f) { 1662 height += (int) ((mHeight - height) * lp.verticalWeight); 1663 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1664 MeasureSpec.EXACTLY); 1665 measureAgain = true; 1666 } 1667 1668 if (measureAgain) { 1669 if (DEBUG_LAYOUT) Log.v(TAG, 1670 "And hey let's measure once more: width=" + width 1671 + " height=" + height); 1672 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1673 } 1674 1675 layoutRequested = true; 1676 } 1677 } 1678 } else { 1679 // Not the first pass and no window/insets/visibility change but the window 1680 // may have moved and we need check that and if so to update the left and right 1681 // in the attach info. We translate only the window frame since on window move 1682 // the window manager tells us only for the new frame but the insets are the 1683 // same and we do not want to translate them more than once. 1684 1685 // TODO: Well, we are checking whether the frame has changed similarly 1686 // to how this is done for the insets. This is however incorrect since 1687 // the insets and the frame are translated. For example, the old frame 1688 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1689 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1690 // true since we are comparing a not translated value to a translated one. 1691 // This scenario is rare but we may want to fix that. 1692 1693 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1694 || attachInfo.mWindowTop != frame.top); 1695 if (windowMoved) { 1696 if (mTranslator != null) { 1697 mTranslator.translateRectInScreenToAppWinFrame(frame); 1698 } 1699 attachInfo.mWindowLeft = frame.left; 1700 attachInfo.mWindowTop = frame.top; 1701 } 1702 } 1703 1704 final boolean didLayout = layoutRequested && !mStopped; 1705 boolean triggerGlobalLayoutListener = didLayout 1706 || attachInfo.mRecomputeGlobalAttributes; 1707 if (didLayout) { 1708 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1709 1710 // By this point all views have been sized and positionned 1711 // We can compute the transparent area 1712 1713 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1714 // start out transparent 1715 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1716 host.getLocationInWindow(mTmpLocation); 1717 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1718 mTmpLocation[0] + host.mRight - host.mLeft, 1719 mTmpLocation[1] + host.mBottom - host.mTop); 1720 1721 host.gatherTransparentRegion(mTransparentRegion); 1722 if (mTranslator != null) { 1723 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1724 } 1725 1726 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1727 mPreviousTransparentRegion.set(mTransparentRegion); 1728 // reconfigure window manager 1729 try { 1730 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1731 } catch (RemoteException e) { 1732 } 1733 } 1734 } 1735 1736 if (DBG) { 1737 System.out.println("======================================"); 1738 System.out.println("performTraversals -- after setFrame"); 1739 host.debug(); 1740 } 1741 } 1742 1743 if (triggerGlobalLayoutListener) { 1744 attachInfo.mRecomputeGlobalAttributes = false; 1745 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1746 1747 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1748 postSendWindowContentChangedCallback(mView); 1749 } 1750 } 1751 1752 if (computesInternalInsets) { 1753 // Clear the original insets. 1754 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1755 insets.reset(); 1756 1757 // Compute new insets in place. 1758 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1759 1760 // Tell the window manager. 1761 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1762 mLastGivenInsets.set(insets); 1763 1764 // Translate insets to screen coordinates if needed. 1765 final Rect contentInsets; 1766 final Rect visibleInsets; 1767 final Region touchableRegion; 1768 if (mTranslator != null) { 1769 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1770 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1771 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1772 } else { 1773 contentInsets = insets.contentInsets; 1774 visibleInsets = insets.visibleInsets; 1775 touchableRegion = insets.touchableRegion; 1776 } 1777 1778 try { 1779 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1780 contentInsets, visibleInsets, touchableRegion); 1781 } catch (RemoteException e) { 1782 } 1783 } 1784 } 1785 1786 boolean skipDraw = false; 1787 1788 if (mFirst) { 1789 // handle first focus request 1790 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1791 + mView.hasFocus()); 1792 if (mView != null) { 1793 if (!mView.hasFocus()) { 1794 mView.requestFocus(View.FOCUS_FORWARD); 1795 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1796 + mView.findFocus()); 1797 } else { 1798 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1799 + mView.findFocus()); 1800 } 1801 } 1802 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1803 // The first time we relayout the window, if the system is 1804 // doing window animations, we want to hold of on any future 1805 // draws until the animation is done. 1806 mWindowsAnimating = true; 1807 } 1808 } else if (mWindowsAnimating) { 1809 skipDraw = true; 1810 } 1811 1812 mFirst = false; 1813 mWillDrawSoon = false; 1814 mNewSurfaceNeeded = false; 1815 mViewVisibility = viewVisibility; 1816 1817 if (mAttachInfo.mHasWindowFocus) { 1818 final boolean imTarget = WindowManager.LayoutParams 1819 .mayUseInputMethod(mWindowAttributes.flags); 1820 if (imTarget != mLastWasImTarget) { 1821 mLastWasImTarget = imTarget; 1822 InputMethodManager imm = InputMethodManager.peekInstance(); 1823 if (imm != null && imTarget) { 1824 imm.startGettingWindowFocus(mView); 1825 imm.onWindowFocus(mView, mView.findFocus(), 1826 mWindowAttributes.softInputMode, 1827 !mHasHadWindowFocus, mWindowAttributes.flags); 1828 } 1829 } 1830 } 1831 1832 // Remember if we must report the next draw. 1833 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1834 mReportNextDraw = true; 1835 } 1836 1837 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1838 viewVisibility != View.VISIBLE; 1839 1840 if (!cancelDraw && !newSurface) { 1841 if (!skipDraw || mReportNextDraw) { 1842 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1843 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1844 mPendingTransitions.get(i).startChangingAnimations(); 1845 } 1846 mPendingTransitions.clear(); 1847 } 1848 1849 performDraw(); 1850 } 1851 } else { 1852 if (viewVisibility == View.VISIBLE) { 1853 // Try again 1854 scheduleTraversals(); 1855 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1856 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1857 mPendingTransitions.get(i).endChangingAnimations(); 1858 } 1859 mPendingTransitions.clear(); 1860 } 1861 } 1862 1863 mIsInTraversal = false; 1864 } 1865 1866 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1867 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1868 try { 1869 if (!mWindowSession.outOfMemory(mWindow) && 1870 Process.myUid() != Process.SYSTEM_UID) { 1871 Slog.w(TAG, "No processes killed for memory; killing self"); 1872 Process.killProcess(Process.myPid()); 1873 } 1874 } catch (RemoteException ex) { 1875 } 1876 mLayoutRequested = true; // ask wm for a new surface next time. 1877 } 1878 1879 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1880 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1881 try { 1882 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1883 } finally { 1884 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1885 } 1886 } 1887 1888 /** 1889 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1890 * is currently undergoing a layout pass. 1891 * 1892 * @return whether the view hierarchy is currently undergoing a layout pass 1893 */ 1894 boolean isInLayout() { 1895 return mInLayout; 1896 } 1897 1898 /** 1899 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1900 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1901 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1902 * all children in that container hierarchy are measured and laid out at the end of the layout 1903 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1904 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1905 * we check all of those views to see if any still have pending layout requests, which 1906 * indicates that they were not correctly handled by their container hierarchy. If that is 1907 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1908 * to blank containers, and force a second request/measure/layout pass in this frame. If 1909 * more requestLayout() calls are received during that second layout pass, we post those 1910 * requests to the next frame to avoid possible infinite loops. 1911 * 1912 * <p>The return value from this method indicates whether the request should proceed 1913 * (if it is a request during the first layout pass) or should be skipped and posted to the 1914 * next frame (if it is a request during the second layout pass).</p> 1915 * 1916 * @param view the view that requested the layout. 1917 * 1918 * @return true if request should proceed, false otherwise. 1919 */ 1920 boolean requestLayoutDuringLayout(final View view) { 1921 if (view.mParent == null || view.mAttachInfo == null) { 1922 // Would not normally trigger another layout, so just let it pass through as usual 1923 return true; 1924 } 1925 if (!mHandlingLayoutInLayoutRequest) { 1926 if (!mLayoutRequesters.contains(view)) { 1927 mLayoutRequesters.add(view); 1928 } 1929 return true; 1930 } else { 1931 Log.w("View", "requestLayout() called by " + view + " during second layout pass: " + 1932 "posting to next frame"); 1933 view.post(new Runnable() { 1934 @Override 1935 public void run() { 1936 view.requestLayout(); 1937 } 1938 }); 1939 return false; 1940 } 1941 } 1942 1943 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1944 int desiredWindowHeight) { 1945 mLayoutRequested = false; 1946 mScrollMayChange = true; 1947 mInLayout = true; 1948 1949 final View host = mView; 1950 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1951 Log.v(TAG, "Laying out " + host + " to (" + 1952 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1953 } 1954 1955 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1956 try { 1957 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1958 1959 mInLayout = false; 1960 int numViewsRequestingLayout = mLayoutRequesters.size(); 1961 if (numViewsRequestingLayout > 0) { 1962 // requestLayout() was called during layout. 1963 // If no layout-request flags are set on the requesting views, there is no problem. 1964 // If some requests are still pending, then we need to clear those flags and do 1965 // a full request/measure/layout pass to handle this situation. 1966 1967 // Check state of layout flags for all requesters 1968 ArrayList<View> mValidLayoutRequesters = null; 1969 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1970 View view = mLayoutRequesters.get(i); 1971 if ((view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == View.PFLAG_FORCE_LAYOUT) { 1972 while (view != null && view.mAttachInfo != null && view.mParent != null && 1973 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 1974 if ((view.mViewFlags & View.VISIBILITY_MASK) != View.GONE) { 1975 // Only trigger new requests for non-GONE views 1976 Log.w(TAG, "requestLayout() improperly called during " + 1977 "layout: running second layout pass for " + view); 1978 if (mValidLayoutRequesters == null) { 1979 mValidLayoutRequesters = new ArrayList<View>(); 1980 } 1981 mValidLayoutRequesters.add(view); 1982 break; 1983 } 1984 if (view.mParent instanceof View) { 1985 view = (View) view.mParent; 1986 } else { 1987 view = null; 1988 } 1989 } 1990 } 1991 } 1992 if (mValidLayoutRequesters != null) { 1993 // Clear flags throughout hierarchy, walking up from each flagged requester 1994 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1995 View view = mLayoutRequesters.get(i); 1996 while (view != null && 1997 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 1998 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 1999 if (view.mParent instanceof View) { 2000 view = (View) view.mParent; 2001 } else { 2002 view = null; 2003 } 2004 } 2005 } 2006 // Process fresh layout requests, then measure and layout 2007 mHandlingLayoutInLayoutRequest = true; 2008 int numValidRequests = mValidLayoutRequesters.size(); 2009 for (int i = 0; i < numValidRequests; ++i) { 2010 mValidLayoutRequesters.get(i).requestLayout(); 2011 } 2012 measureHierarchy(host, lp, mView.getContext().getResources(), 2013 desiredWindowWidth, desiredWindowHeight); 2014 mInLayout = true; 2015 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2016 mHandlingLayoutInLayoutRequest = false; 2017 } 2018 mLayoutRequesters.clear(); 2019 } 2020 } finally { 2021 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2022 } 2023 mInLayout = false; 2024 } 2025 2026 public void requestTransparentRegion(View child) { 2027 // the test below should not fail unless someone is messing with us 2028 checkThread(); 2029 if (mView == child) { 2030 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2031 // Need to make sure we re-evaluate the window attributes next 2032 // time around, to ensure the window has the correct format. 2033 mWindowAttributesChanged = true; 2034 mWindowAttributesChangesFlag = 0; 2035 requestLayout(); 2036 } 2037 } 2038 2039 /** 2040 * Figures out the measure spec for the root view in a window based on it's 2041 * layout params. 2042 * 2043 * @param windowSize 2044 * The available width or height of the window 2045 * 2046 * @param rootDimension 2047 * The layout params for one dimension (width or height) of the 2048 * window. 2049 * 2050 * @return The measure spec to use to measure the root view. 2051 */ 2052 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2053 int measureSpec; 2054 switch (rootDimension) { 2055 2056 case ViewGroup.LayoutParams.MATCH_PARENT: 2057 // Window can't resize. Force root view to be windowSize. 2058 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2059 break; 2060 case ViewGroup.LayoutParams.WRAP_CONTENT: 2061 // Window can resize. Set max size for root view. 2062 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2063 break; 2064 default: 2065 // Window wants to be an exact size. Force root view to be that size. 2066 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2067 break; 2068 } 2069 return measureSpec; 2070 } 2071 2072 int mHardwareYOffset; 2073 int mResizeAlpha; 2074 final Paint mResizePaint = new Paint(); 2075 2076 public void onHardwarePreDraw(HardwareCanvas canvas) { 2077 canvas.translate(0, -mHardwareYOffset); 2078 } 2079 2080 public void onHardwarePostDraw(HardwareCanvas canvas) { 2081 if (mResizeBuffer != null) { 2082 mResizePaint.setAlpha(mResizeAlpha); 2083 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2084 } 2085 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2086 } 2087 2088 /** 2089 * @hide 2090 */ 2091 void outputDisplayList(View view) { 2092 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2093 DisplayList displayList = view.getDisplayList(); 2094 if (displayList != null) { 2095 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2096 } 2097 } 2098 } 2099 2100 /** 2101 * @see #PROPERTY_PROFILE_RENDERING 2102 */ 2103 private void profileRendering(boolean enabled) { 2104 if (mProfileRendering) { 2105 mRenderProfilingEnabled = enabled; 2106 2107 if (mRenderProfiler != null) { 2108 mChoreographer.removeFrameCallback(mRenderProfiler); 2109 } 2110 if (mRenderProfilingEnabled) { 2111 if (mRenderProfiler == null) { 2112 mRenderProfiler = new Choreographer.FrameCallback() { 2113 @Override 2114 public void doFrame(long frameTimeNanos) { 2115 mDirty.set(0, 0, mWidth, mHeight); 2116 scheduleTraversals(); 2117 if (mRenderProfilingEnabled) { 2118 mChoreographer.postFrameCallback(mRenderProfiler); 2119 } 2120 } 2121 }; 2122 } 2123 mChoreographer.postFrameCallback(mRenderProfiler); 2124 } else { 2125 mRenderProfiler = null; 2126 } 2127 } 2128 } 2129 2130 /** 2131 * Called from draw() when DEBUG_FPS is enabled 2132 */ 2133 private void trackFPS() { 2134 // Tracks frames per second drawn. First value in a series of draws may be bogus 2135 // because it down not account for the intervening idle time 2136 long nowTime = System.currentTimeMillis(); 2137 if (mFpsStartTime < 0) { 2138 mFpsStartTime = mFpsPrevTime = nowTime; 2139 mFpsNumFrames = 0; 2140 } else { 2141 ++mFpsNumFrames; 2142 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2143 long frameTime = nowTime - mFpsPrevTime; 2144 long totalTime = nowTime - mFpsStartTime; 2145 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2146 mFpsPrevTime = nowTime; 2147 if (totalTime > 1000) { 2148 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2149 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2150 mFpsStartTime = nowTime; 2151 mFpsNumFrames = 0; 2152 } 2153 } 2154 } 2155 2156 private void performDraw() { 2157 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2158 return; 2159 } 2160 2161 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2162 mFullRedrawNeeded = false; 2163 2164 mIsDrawing = true; 2165 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2166 try { 2167 draw(fullRedrawNeeded); 2168 } finally { 2169 mIsDrawing = false; 2170 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2171 } 2172 2173 if (mReportNextDraw) { 2174 mReportNextDraw = false; 2175 2176 if (LOCAL_LOGV) { 2177 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2178 } 2179 if (mSurfaceHolder != null && mSurface.isValid()) { 2180 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2181 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2182 if (callbacks != null) { 2183 for (SurfaceHolder.Callback c : callbacks) { 2184 if (c instanceof SurfaceHolder.Callback2) { 2185 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2186 mSurfaceHolder); 2187 } 2188 } 2189 } 2190 } 2191 try { 2192 mWindowSession.finishDrawing(mWindow); 2193 } catch (RemoteException e) { 2194 } 2195 } 2196 } 2197 2198 private void draw(boolean fullRedrawNeeded) { 2199 Surface surface = mSurface; 2200 if (!surface.isValid()) { 2201 return; 2202 } 2203 2204 if (DEBUG_FPS) { 2205 trackFPS(); 2206 } 2207 2208 if (!sFirstDrawComplete) { 2209 synchronized (sFirstDrawHandlers) { 2210 sFirstDrawComplete = true; 2211 final int count = sFirstDrawHandlers.size(); 2212 for (int i = 0; i< count; i++) { 2213 mHandler.post(sFirstDrawHandlers.get(i)); 2214 } 2215 } 2216 } 2217 2218 scrollToRectOrFocus(null, false); 2219 2220 final AttachInfo attachInfo = mAttachInfo; 2221 if (attachInfo.mViewScrollChanged) { 2222 attachInfo.mViewScrollChanged = false; 2223 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2224 } 2225 2226 int yoff; 2227 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2228 if (animating) { 2229 yoff = mScroller.getCurrY(); 2230 } else { 2231 yoff = mScrollY; 2232 } 2233 if (mCurScrollY != yoff) { 2234 mCurScrollY = yoff; 2235 fullRedrawNeeded = true; 2236 } 2237 2238 final float appScale = attachInfo.mApplicationScale; 2239 final boolean scalingRequired = attachInfo.mScalingRequired; 2240 2241 int resizeAlpha = 0; 2242 if (mResizeBuffer != null) { 2243 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2244 if (deltaTime < mResizeBufferDuration) { 2245 float amt = deltaTime/(float) mResizeBufferDuration; 2246 amt = mResizeInterpolator.getInterpolation(amt); 2247 animating = true; 2248 resizeAlpha = 255 - (int)(amt*255); 2249 } else { 2250 disposeResizeBuffer(); 2251 } 2252 } 2253 2254 final Rect dirty = mDirty; 2255 if (mSurfaceHolder != null) { 2256 // The app owns the surface, we won't draw. 2257 dirty.setEmpty(); 2258 if (animating) { 2259 if (mScroller != null) { 2260 mScroller.abortAnimation(); 2261 } 2262 disposeResizeBuffer(); 2263 } 2264 return; 2265 } 2266 2267 if (fullRedrawNeeded) { 2268 attachInfo.mIgnoreDirtyState = true; 2269 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2270 } 2271 2272 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2273 Log.v(TAG, "Draw " + mView + "/" 2274 + mWindowAttributes.getTitle() 2275 + ": dirty={" + dirty.left + "," + dirty.top 2276 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2277 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2278 appScale + ", width=" + mWidth + ", height=" + mHeight); 2279 } 2280 2281 invalidateDisplayLists(); 2282 2283 attachInfo.mTreeObserver.dispatchOnDraw(); 2284 2285 if (!dirty.isEmpty() || mIsAnimating) { 2286 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2287 // Draw with hardware renderer. 2288 mIsAnimating = false; 2289 mHardwareYOffset = yoff; 2290 mResizeAlpha = resizeAlpha; 2291 2292 mCurrentDirty.set(dirty); 2293 mCurrentDirty.union(mPreviousDirty); 2294 mPreviousDirty.set(dirty); 2295 dirty.setEmpty(); 2296 2297 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2298 animating ? null : mCurrentDirty)) { 2299 mPreviousDirty.set(0, 0, mWidth, mHeight); 2300 } 2301 } else { 2302 // If we get here with a disabled & requested hardware renderer, something went 2303 // wrong (an invalidate posted right before we destroyed the hardware surface 2304 // for instance) so we should just bail out. Locking the surface with software 2305 // rendering at this point would lock it forever and prevent hardware renderer 2306 // from doing its job when it comes back. 2307 // Before we request a new frame we must however attempt to reinitiliaze the 2308 // hardware renderer if it's in requested state. This would happen after an 2309 // eglTerminate() for instance. 2310 if (attachInfo.mHardwareRenderer != null && 2311 !attachInfo.mHardwareRenderer.isEnabled() && 2312 attachInfo.mHardwareRenderer.isRequested()) { 2313 2314 try { 2315 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2316 mHolder.getSurface()); 2317 } catch (Surface.OutOfResourcesException e) { 2318 handleOutOfResourcesException(e); 2319 return; 2320 } 2321 2322 mFullRedrawNeeded = true; 2323 scheduleTraversals(); 2324 return; 2325 } 2326 2327 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2328 return; 2329 } 2330 } 2331 } 2332 2333 if (animating) { 2334 mFullRedrawNeeded = true; 2335 scheduleTraversals(); 2336 } 2337 } 2338 2339 /** 2340 * @return true if drawing was succesfull, false if an error occurred 2341 */ 2342 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2343 boolean scalingRequired, Rect dirty) { 2344 2345 // Draw with software renderer. 2346 Canvas canvas; 2347 try { 2348 int left = dirty.left; 2349 int top = dirty.top; 2350 int right = dirty.right; 2351 int bottom = dirty.bottom; 2352 2353 canvas = mSurface.lockCanvas(dirty); 2354 2355 if (left != dirty.left || top != dirty.top || right != dirty.right || 2356 bottom != dirty.bottom) { 2357 attachInfo.mIgnoreDirtyState = true; 2358 } 2359 2360 // TODO: Do this in native 2361 canvas.setDensity(mDensity); 2362 } catch (Surface.OutOfResourcesException e) { 2363 handleOutOfResourcesException(e); 2364 return false; 2365 } catch (IllegalArgumentException e) { 2366 Log.e(TAG, "Could not lock surface", e); 2367 // Don't assume this is due to out of memory, it could be 2368 // something else, and if it is something else then we could 2369 // kill stuff (or ourself) for no reason. 2370 mLayoutRequested = true; // ask wm for a new surface next time. 2371 return false; 2372 } 2373 2374 try { 2375 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2376 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2377 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2378 //canvas.drawARGB(255, 255, 0, 0); 2379 } 2380 2381 // If this bitmap's format includes an alpha channel, we 2382 // need to clear it before drawing so that the child will 2383 // properly re-composite its drawing on a transparent 2384 // background. This automatically respects the clip/dirty region 2385 // or 2386 // If we are applying an offset, we need to clear the area 2387 // where the offset doesn't appear to avoid having garbage 2388 // left in the blank areas. 2389 if (!canvas.isOpaque() || yoff != 0) { 2390 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2391 } 2392 2393 dirty.setEmpty(); 2394 mIsAnimating = false; 2395 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2396 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2397 2398 if (DEBUG_DRAW) { 2399 Context cxt = mView.getContext(); 2400 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2401 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2402 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2403 } 2404 try { 2405 canvas.translate(0, -yoff); 2406 if (mTranslator != null) { 2407 mTranslator.translateCanvas(canvas); 2408 } 2409 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2410 attachInfo.mSetIgnoreDirtyState = false; 2411 2412 mView.draw(canvas); 2413 2414 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2415 } finally { 2416 if (!attachInfo.mSetIgnoreDirtyState) { 2417 // Only clear the flag if it was not set during the mView.draw() call 2418 attachInfo.mIgnoreDirtyState = false; 2419 } 2420 } 2421 } finally { 2422 try { 2423 surface.unlockCanvasAndPost(canvas); 2424 } catch (IllegalArgumentException e) { 2425 Log.e(TAG, "Could not unlock surface", e); 2426 mLayoutRequested = true; // ask wm for a new surface next time. 2427 //noinspection ReturnInsideFinallyBlock 2428 return false; 2429 } 2430 2431 if (LOCAL_LOGV) { 2432 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2433 } 2434 } 2435 return true; 2436 } 2437 2438 /** 2439 * We want to draw a highlight around the current accessibility focused. 2440 * Since adding a style for all possible view is not a viable option we 2441 * have this specialized drawing method. 2442 * 2443 * Note: We are doing this here to be able to draw the highlight for 2444 * virtual views in addition to real ones. 2445 * 2446 * @param canvas The canvas on which to draw. 2447 */ 2448 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2449 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2450 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2451 return; 2452 } 2453 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2454 return; 2455 } 2456 Drawable drawable = getAccessibilityFocusedDrawable(); 2457 if (drawable == null) { 2458 return; 2459 } 2460 AccessibilityNodeProvider provider = 2461 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2462 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2463 if (provider == null) { 2464 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2465 } else { 2466 if (mAccessibilityFocusedVirtualView == null) { 2467 return; 2468 } 2469 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2470 } 2471 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2472 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2473 drawable.setBounds(bounds); 2474 drawable.draw(canvas); 2475 } 2476 2477 private Drawable getAccessibilityFocusedDrawable() { 2478 if (mAttachInfo != null) { 2479 // Lazily load the accessibility focus drawable. 2480 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2481 TypedValue value = new TypedValue(); 2482 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2483 R.attr.accessibilityFocusedDrawable, value, true); 2484 if (resolved) { 2485 mAttachInfo.mAccessibilityFocusDrawable = 2486 mView.mContext.getResources().getDrawable(value.resourceId); 2487 } 2488 } 2489 return mAttachInfo.mAccessibilityFocusDrawable; 2490 } 2491 return null; 2492 } 2493 2494 void invalidateDisplayLists() { 2495 final ArrayList<DisplayList> displayLists = mDisplayLists; 2496 final int count = displayLists.size(); 2497 2498 for (int i = 0; i < count; i++) { 2499 final DisplayList displayList = displayLists.get(i); 2500 if (displayList.isDirty()) { 2501 displayList.invalidate(); 2502 displayList.clear(); 2503 displayList.setDirty(false); 2504 } 2505 } 2506 2507 displayLists.clear(); 2508 } 2509 2510 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2511 final View.AttachInfo attachInfo = mAttachInfo; 2512 final Rect ci = attachInfo.mContentInsets; 2513 final Rect vi = attachInfo.mVisibleInsets; 2514 int scrollY = 0; 2515 boolean handled = false; 2516 2517 if (vi.left > ci.left || vi.top > ci.top 2518 || vi.right > ci.right || vi.bottom > ci.bottom) { 2519 // We'll assume that we aren't going to change the scroll 2520 // offset, since we want to avoid that unless it is actually 2521 // going to make the focus visible... otherwise we scroll 2522 // all over the place. 2523 scrollY = mScrollY; 2524 // We can be called for two different situations: during a draw, 2525 // to update the scroll position if the focus has changed (in which 2526 // case 'rectangle' is null), or in response to a 2527 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2528 // is non-null and we just want to scroll to whatever that 2529 // rectangle is). 2530 View focus = mView.findFocus(); 2531 if (focus == null) { 2532 return false; 2533 } 2534 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2535 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2536 // If the focus has changed, then ignore any requests to scroll 2537 // to a rectangle; first we want to make sure the entire focus 2538 // view is visible. 2539 rectangle = null; 2540 } 2541 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2542 + " rectangle=" + rectangle + " ci=" + ci 2543 + " vi=" + vi); 2544 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2545 // Optimization: if the focus hasn't changed since last 2546 // time, and no layout has happened, then just leave things 2547 // as they are. 2548 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2549 + mScrollY + " vi=" + vi.toShortString()); 2550 } else if (focus != null) { 2551 // We need to determine if the currently focused view is 2552 // within the visible part of the window and, if not, apply 2553 // a pan so it can be seen. 2554 mLastScrolledFocus = new WeakReference<View>(focus); 2555 mScrollMayChange = false; 2556 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2557 // Try to find the rectangle from the focus view. 2558 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2559 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2560 + mView.getWidth() + " h=" + mView.getHeight() 2561 + " ci=" + ci.toShortString() 2562 + " vi=" + vi.toShortString()); 2563 if (rectangle == null) { 2564 focus.getFocusedRect(mTempRect); 2565 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2566 + ": focusRect=" + mTempRect.toShortString()); 2567 if (mView instanceof ViewGroup) { 2568 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2569 focus, mTempRect); 2570 } 2571 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2572 "Focus in window: focusRect=" 2573 + mTempRect.toShortString() 2574 + " visRect=" + mVisRect.toShortString()); 2575 } else { 2576 mTempRect.set(rectangle); 2577 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2578 "Request scroll to rect: " 2579 + mTempRect.toShortString() 2580 + " visRect=" + mVisRect.toShortString()); 2581 } 2582 if (mTempRect.intersect(mVisRect)) { 2583 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2584 "Focus window visible rect: " 2585 + mTempRect.toShortString()); 2586 if (mTempRect.height() > 2587 (mView.getHeight()-vi.top-vi.bottom)) { 2588 // If the focus simply is not going to fit, then 2589 // best is probably just to leave things as-is. 2590 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2591 "Too tall; leaving scrollY=" + scrollY); 2592 } else if ((mTempRect.top-scrollY) < vi.top) { 2593 scrollY -= vi.top - (mTempRect.top-scrollY); 2594 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2595 "Top covered; scrollY=" + scrollY); 2596 } else if ((mTempRect.bottom-scrollY) 2597 > (mView.getHeight()-vi.bottom)) { 2598 scrollY += (mTempRect.bottom-scrollY) 2599 - (mView.getHeight()-vi.bottom); 2600 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2601 "Bottom covered; scrollY=" + scrollY); 2602 } 2603 handled = true; 2604 } 2605 } 2606 } 2607 } 2608 2609 if (scrollY != mScrollY) { 2610 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2611 + mScrollY + " , new=" + scrollY); 2612 if (!immediate && mResizeBuffer == null) { 2613 if (mScroller == null) { 2614 mScroller = new Scroller(mView.getContext()); 2615 } 2616 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2617 } else if (mScroller != null) { 2618 mScroller.abortAnimation(); 2619 } 2620 mScrollY = scrollY; 2621 } 2622 2623 return handled; 2624 } 2625 2626 /** 2627 * @hide 2628 */ 2629 public View getAccessibilityFocusedHost() { 2630 return mAccessibilityFocusedHost; 2631 } 2632 2633 /** 2634 * @hide 2635 */ 2636 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2637 return mAccessibilityFocusedVirtualView; 2638 } 2639 2640 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2641 // If we have a virtual view with accessibility focus we need 2642 // to clear the focus and invalidate the virtual view bounds. 2643 if (mAccessibilityFocusedVirtualView != null) { 2644 2645 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2646 View focusHost = mAccessibilityFocusedHost; 2647 focusHost.clearAccessibilityFocusNoCallbacks(); 2648 2649 // Wipe the state of the current accessibility focus since 2650 // the call into the provider to clear accessibility focus 2651 // will fire an accessibility event which will end up calling 2652 // this method and we want to have clean state when this 2653 // invocation happens. 2654 mAccessibilityFocusedHost = null; 2655 mAccessibilityFocusedVirtualView = null; 2656 2657 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2658 if (provider != null) { 2659 // Invalidate the area of the cleared accessibility focus. 2660 focusNode.getBoundsInParent(mTempRect); 2661 focusHost.invalidate(mTempRect); 2662 // Clear accessibility focus in the virtual node. 2663 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2664 focusNode.getSourceNodeId()); 2665 provider.performAction(virtualNodeId, 2666 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2667 } 2668 focusNode.recycle(); 2669 } 2670 if (mAccessibilityFocusedHost != null) { 2671 // Clear accessibility focus in the view. 2672 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2673 } 2674 2675 // Set the new focus host and node. 2676 mAccessibilityFocusedHost = view; 2677 mAccessibilityFocusedVirtualView = node; 2678 } 2679 2680 public void requestChildFocus(View child, View focused) { 2681 if (DEBUG_INPUT_RESIZE) { 2682 Log.v(TAG, "Request child focus: focus now " + focused); 2683 } 2684 checkThread(); 2685 scheduleTraversals(); 2686 } 2687 2688 public void clearChildFocus(View child) { 2689 if (DEBUG_INPUT_RESIZE) { 2690 Log.v(TAG, "Clearing child focus"); 2691 } 2692 checkThread(); 2693 scheduleTraversals(); 2694 } 2695 2696 @Override 2697 public ViewParent getParentForAccessibility() { 2698 return null; 2699 } 2700 2701 public void focusableViewAvailable(View v) { 2702 checkThread(); 2703 if (mView != null) { 2704 if (!mView.hasFocus()) { 2705 v.requestFocus(); 2706 } else { 2707 // the one case where will transfer focus away from the current one 2708 // is if the current view is a view group that prefers to give focus 2709 // to its children first AND the view is a descendant of it. 2710 View focused = mView.findFocus(); 2711 if (focused instanceof ViewGroup) { 2712 ViewGroup group = (ViewGroup) focused; 2713 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2714 && isViewDescendantOf(v, focused)) { 2715 v.requestFocus(); 2716 } 2717 } 2718 } 2719 } 2720 } 2721 2722 public void recomputeViewAttributes(View child) { 2723 checkThread(); 2724 if (mView == child) { 2725 mAttachInfo.mRecomputeGlobalAttributes = true; 2726 if (!mWillDrawSoon) { 2727 scheduleTraversals(); 2728 } 2729 } 2730 } 2731 2732 void dispatchDetachedFromWindow() { 2733 if (mView != null && mView.mAttachInfo != null) { 2734 if (mAttachInfo.mHardwareRenderer != null && 2735 mAttachInfo.mHardwareRenderer.isEnabled()) { 2736 mAttachInfo.mHardwareRenderer.validate(); 2737 } 2738 mView.dispatchDetachedFromWindow(); 2739 } 2740 2741 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2742 mAccessibilityManager.removeAccessibilityStateChangeListener( 2743 mAccessibilityInteractionConnectionManager); 2744 removeSendWindowContentChangedCallback(); 2745 2746 destroyHardwareRenderer(); 2747 2748 setAccessibilityFocus(null, null); 2749 2750 mView = null; 2751 mAttachInfo.mRootView = null; 2752 mAttachInfo.mSurface = null; 2753 2754 mSurface.release(); 2755 2756 if (mInputQueueCallback != null && mInputQueue != null) { 2757 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2758 mInputQueueCallback = null; 2759 mInputQueue = null; 2760 } else if (mInputEventReceiver != null) { 2761 mInputEventReceiver.dispose(); 2762 mInputEventReceiver = null; 2763 } 2764 try { 2765 mWindowSession.remove(mWindow); 2766 } catch (RemoteException e) { 2767 } 2768 2769 // Dispose the input channel after removing the window so the Window Manager 2770 // doesn't interpret the input channel being closed as an abnormal termination. 2771 if (mInputChannel != null) { 2772 mInputChannel.dispose(); 2773 mInputChannel = null; 2774 } 2775 2776 unscheduleTraversals(); 2777 } 2778 2779 void updateConfiguration(Configuration config, boolean force) { 2780 if (DEBUG_CONFIGURATION) Log.v(TAG, 2781 "Applying new config to window " 2782 + mWindowAttributes.getTitle() 2783 + ": " + config); 2784 2785 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2786 if (ci != null) { 2787 config = new Configuration(config); 2788 ci.applyToConfiguration(mNoncompatDensity, config); 2789 } 2790 2791 synchronized (sConfigCallbacks) { 2792 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2793 sConfigCallbacks.get(i).onConfigurationChanged(config); 2794 } 2795 } 2796 if (mView != null) { 2797 // At this point the resources have been updated to 2798 // have the most recent config, whatever that is. Use 2799 // the one in them which may be newer. 2800 config = mView.getResources().getConfiguration(); 2801 if (force || mLastConfiguration.diff(config) != 0) { 2802 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2803 final int currentLayoutDirection = config.getLayoutDirection(); 2804 mLastConfiguration.setTo(config); 2805 if (lastLayoutDirection != currentLayoutDirection && 2806 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2807 mView.setLayoutDirection(currentLayoutDirection); 2808 } 2809 mView.dispatchConfigurationChanged(config); 2810 } 2811 } 2812 } 2813 2814 /** 2815 * Return true if child is an ancestor of parent, (or equal to the parent). 2816 */ 2817 public static boolean isViewDescendantOf(View child, View parent) { 2818 if (child == parent) { 2819 return true; 2820 } 2821 2822 final ViewParent theParent = child.getParent(); 2823 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2824 } 2825 2826 private static void forceLayout(View view) { 2827 view.forceLayout(); 2828 if (view instanceof ViewGroup) { 2829 ViewGroup group = (ViewGroup) view; 2830 final int count = group.getChildCount(); 2831 for (int i = 0; i < count; i++) { 2832 forceLayout(group.getChildAt(i)); 2833 } 2834 } 2835 } 2836 2837 private final static int MSG_INVALIDATE = 1; 2838 private final static int MSG_INVALIDATE_RECT = 2; 2839 private final static int MSG_DIE = 3; 2840 private final static int MSG_RESIZED = 4; 2841 private final static int MSG_RESIZED_REPORT = 5; 2842 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2843 private final static int MSG_DISPATCH_KEY = 7; 2844 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2845 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2846 private final static int MSG_IME_FINISHED_EVENT = 10; 2847 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2848 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2849 private final static int MSG_CHECK_FOCUS = 13; 2850 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2851 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2852 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2853 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2854 private final static int MSG_UPDATE_CONFIGURATION = 18; 2855 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2856 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2857 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2858 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2859 private final static int MSG_INVALIDATE_WORLD = 23; 2860 private final static int MSG_WINDOW_MOVED = 24; 2861 2862 final class ViewRootHandler extends Handler { 2863 @Override 2864 public String getMessageName(Message message) { 2865 switch (message.what) { 2866 case MSG_INVALIDATE: 2867 return "MSG_INVALIDATE"; 2868 case MSG_INVALIDATE_RECT: 2869 return "MSG_INVALIDATE_RECT"; 2870 case MSG_DIE: 2871 return "MSG_DIE"; 2872 case MSG_RESIZED: 2873 return "MSG_RESIZED"; 2874 case MSG_RESIZED_REPORT: 2875 return "MSG_RESIZED_REPORT"; 2876 case MSG_WINDOW_FOCUS_CHANGED: 2877 return "MSG_WINDOW_FOCUS_CHANGED"; 2878 case MSG_DISPATCH_KEY: 2879 return "MSG_DISPATCH_KEY"; 2880 case MSG_DISPATCH_APP_VISIBILITY: 2881 return "MSG_DISPATCH_APP_VISIBILITY"; 2882 case MSG_DISPATCH_GET_NEW_SURFACE: 2883 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2884 case MSG_IME_FINISHED_EVENT: 2885 return "MSG_IME_FINISHED_EVENT"; 2886 case MSG_DISPATCH_KEY_FROM_IME: 2887 return "MSG_DISPATCH_KEY_FROM_IME"; 2888 case MSG_FINISH_INPUT_CONNECTION: 2889 return "MSG_FINISH_INPUT_CONNECTION"; 2890 case MSG_CHECK_FOCUS: 2891 return "MSG_CHECK_FOCUS"; 2892 case MSG_CLOSE_SYSTEM_DIALOGS: 2893 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2894 case MSG_DISPATCH_DRAG_EVENT: 2895 return "MSG_DISPATCH_DRAG_EVENT"; 2896 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2897 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2898 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2899 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2900 case MSG_UPDATE_CONFIGURATION: 2901 return "MSG_UPDATE_CONFIGURATION"; 2902 case MSG_PROCESS_INPUT_EVENTS: 2903 return "MSG_PROCESS_INPUT_EVENTS"; 2904 case MSG_DISPATCH_SCREEN_STATE: 2905 return "MSG_DISPATCH_SCREEN_STATE"; 2906 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2907 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2908 case MSG_DISPATCH_DONE_ANIMATING: 2909 return "MSG_DISPATCH_DONE_ANIMATING"; 2910 case MSG_WINDOW_MOVED: 2911 return "MSG_WINDOW_MOVED"; 2912 } 2913 return super.getMessageName(message); 2914 } 2915 2916 @Override 2917 public void handleMessage(Message msg) { 2918 switch (msg.what) { 2919 case MSG_INVALIDATE: 2920 ((View) msg.obj).invalidate(); 2921 break; 2922 case MSG_INVALIDATE_RECT: 2923 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2924 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2925 info.recycle(); 2926 break; 2927 case MSG_IME_FINISHED_EVENT: 2928 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2929 break; 2930 case MSG_PROCESS_INPUT_EVENTS: 2931 mProcessInputEventsScheduled = false; 2932 doProcessInputEvents(); 2933 break; 2934 case MSG_DISPATCH_APP_VISIBILITY: 2935 handleAppVisibility(msg.arg1 != 0); 2936 break; 2937 case MSG_DISPATCH_GET_NEW_SURFACE: 2938 handleGetNewSurface(); 2939 break; 2940 case MSG_RESIZED: { 2941 // Recycled in the fall through... 2942 SomeArgs args = (SomeArgs) msg.obj; 2943 if (mWinFrame.equals(args.arg1) 2944 && mPendingContentInsets.equals(args.arg2) 2945 && mPendingVisibleInsets.equals(args.arg3) 2946 && args.arg4 == null) { 2947 break; 2948 } 2949 } // fall through... 2950 case MSG_RESIZED_REPORT: 2951 if (mAdded) { 2952 SomeArgs args = (SomeArgs) msg.obj; 2953 2954 Configuration config = (Configuration) args.arg4; 2955 if (config != null) { 2956 updateConfiguration(config, false); 2957 } 2958 2959 mWinFrame.set((Rect) args.arg1); 2960 mPendingContentInsets.set((Rect) args.arg2); 2961 mPendingVisibleInsets.set((Rect) args.arg3); 2962 2963 args.recycle(); 2964 2965 if (msg.what == MSG_RESIZED_REPORT) { 2966 mReportNextDraw = true; 2967 } 2968 2969 if (mView != null) { 2970 forceLayout(mView); 2971 } 2972 2973 requestLayout(); 2974 } 2975 break; 2976 case MSG_WINDOW_MOVED: 2977 if (mAdded) { 2978 final int w = mWinFrame.width(); 2979 final int h = mWinFrame.height(); 2980 final int l = msg.arg1; 2981 final int t = msg.arg2; 2982 mWinFrame.left = l; 2983 mWinFrame.right = l + w; 2984 mWinFrame.top = t; 2985 mWinFrame.bottom = t + h; 2986 2987 if (mView != null) { 2988 forceLayout(mView); 2989 } 2990 requestLayout(); 2991 } 2992 break; 2993 case MSG_WINDOW_FOCUS_CHANGED: { 2994 if (mAdded) { 2995 boolean hasWindowFocus = msg.arg1 != 0; 2996 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2997 2998 profileRendering(hasWindowFocus); 2999 3000 if (hasWindowFocus) { 3001 boolean inTouchMode = msg.arg2 != 0; 3002 ensureTouchModeLocally(inTouchMode); 3003 3004 if (mAttachInfo.mHardwareRenderer != null && 3005 mSurface != null && mSurface.isValid()) { 3006 mFullRedrawNeeded = true; 3007 try { 3008 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3009 mWidth, mHeight, mHolder.getSurface()); 3010 } catch (Surface.OutOfResourcesException e) { 3011 Log.e(TAG, "OutOfResourcesException locking surface", e); 3012 try { 3013 if (!mWindowSession.outOfMemory(mWindow)) { 3014 Slog.w(TAG, "No processes killed for memory; killing self"); 3015 Process.killProcess(Process.myPid()); 3016 } 3017 } catch (RemoteException ex) { 3018 } 3019 // Retry in a bit. 3020 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3021 return; 3022 } 3023 } 3024 } 3025 3026 mLastWasImTarget = WindowManager.LayoutParams 3027 .mayUseInputMethod(mWindowAttributes.flags); 3028 3029 InputMethodManager imm = InputMethodManager.peekInstance(); 3030 if (mView != null) { 3031 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3032 imm.startGettingWindowFocus(mView); 3033 } 3034 mAttachInfo.mKeyDispatchState.reset(); 3035 mView.dispatchWindowFocusChanged(hasWindowFocus); 3036 } 3037 3038 // Note: must be done after the focus change callbacks, 3039 // so all of the view state is set up correctly. 3040 if (hasWindowFocus) { 3041 if (imm != null && mLastWasImTarget) { 3042 imm.onWindowFocus(mView, mView.findFocus(), 3043 mWindowAttributes.softInputMode, 3044 !mHasHadWindowFocus, mWindowAttributes.flags); 3045 } 3046 // Clear the forward bit. We can just do this directly, since 3047 // the window manager doesn't care about it. 3048 mWindowAttributes.softInputMode &= 3049 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3050 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3051 .softInputMode &= 3052 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3053 mHasHadWindowFocus = true; 3054 } 3055 3056 setAccessibilityFocus(null, null); 3057 3058 if (mView != null && mAccessibilityManager.isEnabled()) { 3059 if (hasWindowFocus) { 3060 mView.sendAccessibilityEvent( 3061 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3062 } 3063 } 3064 } 3065 } break; 3066 case MSG_DIE: 3067 doDie(); 3068 break; 3069 case MSG_DISPATCH_KEY: { 3070 KeyEvent event = (KeyEvent)msg.obj; 3071 enqueueInputEvent(event, null, 0, true); 3072 } break; 3073 case MSG_DISPATCH_KEY_FROM_IME: { 3074 if (LOCAL_LOGV) Log.v( 3075 TAG, "Dispatching key " 3076 + msg.obj + " from IME to " + mView); 3077 KeyEvent event = (KeyEvent)msg.obj; 3078 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3079 // The IME is trying to say this event is from the 3080 // system! Bad bad bad! 3081 //noinspection UnusedAssignment 3082 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3083 } 3084 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3085 } break; 3086 case MSG_FINISH_INPUT_CONNECTION: { 3087 InputMethodManager imm = InputMethodManager.peekInstance(); 3088 if (imm != null) { 3089 imm.reportFinishInputConnection((InputConnection)msg.obj); 3090 } 3091 } break; 3092 case MSG_CHECK_FOCUS: { 3093 InputMethodManager imm = InputMethodManager.peekInstance(); 3094 if (imm != null) { 3095 imm.checkFocus(); 3096 } 3097 } break; 3098 case MSG_CLOSE_SYSTEM_DIALOGS: { 3099 if (mView != null) { 3100 mView.onCloseSystemDialogs((String)msg.obj); 3101 } 3102 } break; 3103 case MSG_DISPATCH_DRAG_EVENT: 3104 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3105 DragEvent event = (DragEvent)msg.obj; 3106 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3107 handleDragEvent(event); 3108 } break; 3109 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3110 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3111 } break; 3112 case MSG_UPDATE_CONFIGURATION: { 3113 Configuration config = (Configuration)msg.obj; 3114 if (config.isOtherSeqNewer(mLastConfiguration)) { 3115 config = mLastConfiguration; 3116 } 3117 updateConfiguration(config, false); 3118 } break; 3119 case MSG_DISPATCH_SCREEN_STATE: { 3120 if (mView != null) { 3121 handleScreenStateChange(msg.arg1 == 1); 3122 } 3123 } break; 3124 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3125 setAccessibilityFocus(null, null); 3126 } break; 3127 case MSG_DISPATCH_DONE_ANIMATING: { 3128 handleDispatchDoneAnimating(); 3129 } break; 3130 case MSG_INVALIDATE_WORLD: { 3131 if (mView != null) { 3132 invalidateWorld(mView); 3133 } 3134 } break; 3135 } 3136 } 3137 } 3138 3139 final ViewRootHandler mHandler = new ViewRootHandler(); 3140 3141 /** 3142 * Something in the current window tells us we need to change the touch mode. For 3143 * example, we are not in touch mode, and the user touches the screen. 3144 * 3145 * If the touch mode has changed, tell the window manager, and handle it locally. 3146 * 3147 * @param inTouchMode Whether we want to be in touch mode. 3148 * @return True if the touch mode changed and focus changed was changed as a result 3149 */ 3150 boolean ensureTouchMode(boolean inTouchMode) { 3151 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3152 + "touch mode is " + mAttachInfo.mInTouchMode); 3153 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3154 3155 // tell the window manager 3156 try { 3157 mWindowSession.setInTouchMode(inTouchMode); 3158 } catch (RemoteException e) { 3159 throw new RuntimeException(e); 3160 } 3161 3162 // handle the change 3163 return ensureTouchModeLocally(inTouchMode); 3164 } 3165 3166 /** 3167 * Ensure that the touch mode for this window is set, and if it is changing, 3168 * take the appropriate action. 3169 * @param inTouchMode Whether we want to be in touch mode. 3170 * @return True if the touch mode changed and focus changed was changed as a result 3171 */ 3172 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3173 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3174 + "touch mode is " + mAttachInfo.mInTouchMode); 3175 3176 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3177 3178 mAttachInfo.mInTouchMode = inTouchMode; 3179 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3180 3181 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3182 } 3183 3184 private boolean enterTouchMode() { 3185 if (mView != null) { 3186 if (mView.hasFocus()) { 3187 // note: not relying on mFocusedView here because this could 3188 // be when the window is first being added, and mFocused isn't 3189 // set yet. 3190 final View focused = mView.findFocus(); 3191 if (focused != null && !focused.isFocusableInTouchMode()) { 3192 final ViewGroup ancestorToTakeFocus = 3193 findAncestorToTakeFocusInTouchMode(focused); 3194 if (ancestorToTakeFocus != null) { 3195 // there is an ancestor that wants focus after its descendants that 3196 // is focusable in touch mode.. give it focus 3197 return ancestorToTakeFocus.requestFocus(); 3198 } else { 3199 // nothing appropriate to have focus in touch mode, clear it out 3200 focused.unFocus(); 3201 return true; 3202 } 3203 } 3204 } 3205 } 3206 return false; 3207 } 3208 3209 /** 3210 * Find an ancestor of focused that wants focus after its descendants and is 3211 * focusable in touch mode. 3212 * @param focused The currently focused view. 3213 * @return An appropriate view, or null if no such view exists. 3214 */ 3215 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3216 ViewParent parent = focused.getParent(); 3217 while (parent instanceof ViewGroup) { 3218 final ViewGroup vgParent = (ViewGroup) parent; 3219 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3220 && vgParent.isFocusableInTouchMode()) { 3221 return vgParent; 3222 } 3223 if (vgParent.isRootNamespace()) { 3224 return null; 3225 } else { 3226 parent = vgParent.getParent(); 3227 } 3228 } 3229 return null; 3230 } 3231 3232 private boolean leaveTouchMode() { 3233 if (mView != null) { 3234 if (mView.hasFocus()) { 3235 View focusedView = mView.findFocus(); 3236 if (!(focusedView instanceof ViewGroup)) { 3237 // some view has focus, let it keep it 3238 return false; 3239 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3240 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3241 // some view group has focus, and doesn't prefer its children 3242 // over itself for focus, so let them keep it. 3243 return false; 3244 } 3245 } 3246 3247 // find the best view to give focus to in this brave new non-touch-mode 3248 // world 3249 final View focused = focusSearch(null, View.FOCUS_DOWN); 3250 if (focused != null) { 3251 return focused.requestFocus(View.FOCUS_DOWN); 3252 } 3253 } 3254 return false; 3255 } 3256 3257 private int deliverInputEvent(QueuedInputEvent q) { 3258 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3259 try { 3260 if (q.mEvent instanceof KeyEvent) { 3261 return deliverKeyEvent(q); 3262 } else { 3263 final int source = q.mEvent.getSource(); 3264 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3265 return deliverPointerEvent(q); 3266 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3267 return deliverTrackballEvent(q); 3268 } else { 3269 return deliverGenericMotionEvent(q); 3270 } 3271 } 3272 } finally { 3273 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3274 } 3275 } 3276 3277 private int deliverInputEventPostIme(QueuedInputEvent q) { 3278 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3279 try { 3280 if (q.mEvent instanceof KeyEvent) { 3281 return deliverKeyEventPostIme(q); 3282 } else { 3283 final int source = q.mEvent.getSource(); 3284 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3285 return deliverTrackballEventPostIme(q); 3286 } else { 3287 return deliverGenericMotionEventPostIme(q); 3288 } 3289 } 3290 } finally { 3291 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3292 } 3293 } 3294 3295 private int deliverPointerEvent(QueuedInputEvent q) { 3296 final MotionEvent event = (MotionEvent)q.mEvent; 3297 final boolean isTouchEvent = event.isTouchEvent(); 3298 if (mInputEventConsistencyVerifier != null) { 3299 if (isTouchEvent) { 3300 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3301 } else { 3302 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3303 } 3304 } 3305 3306 // If there is no view, then the event will not be handled. 3307 if (mView == null || !mAdded) { 3308 return EVENT_NOT_HANDLED; 3309 } 3310 3311 // Translate the pointer event for compatibility, if needed. 3312 if (mTranslator != null) { 3313 mTranslator.translateEventInScreenToAppWindow(event); 3314 } 3315 3316 // Enter touch mode on down or scroll. 3317 final int action = event.getAction(); 3318 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3319 ensureTouchMode(true); 3320 } 3321 3322 // Offset the scroll position. 3323 if (mCurScrollY != 0) { 3324 event.offsetLocation(0, mCurScrollY); 3325 } 3326 if (MEASURE_LATENCY) { 3327 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3328 } 3329 3330 // Remember the touch position for possible drag-initiation. 3331 if (isTouchEvent) { 3332 mLastTouchPoint.x = event.getRawX(); 3333 mLastTouchPoint.y = event.getRawY(); 3334 } 3335 3336 // Dispatch touch to view hierarchy. 3337 boolean handled = mView.dispatchPointerEvent(event); 3338 if (MEASURE_LATENCY) { 3339 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3340 } 3341 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3342 } 3343 3344 private int deliverTrackballEvent(QueuedInputEvent q) { 3345 final MotionEvent event = (MotionEvent)q.mEvent; 3346 if (mInputEventConsistencyVerifier != null) { 3347 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3348 } 3349 3350 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3351 if (LOCAL_LOGV) 3352 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3353 3354 // Dispatch to the IME before propagating down the view hierarchy. 3355 // The IME will eventually call back into handleImeFinishedEvent. 3356 if (mLastWasImTarget) { 3357 InputMethodManager imm = InputMethodManager.peekInstance(); 3358 if (imm != null) { 3359 final int seq = event.getSequenceNumber(); 3360 if (DEBUG_IMF) 3361 Log.v(TAG, "Sending trackball event to IME: seq=" 3362 + seq + " event=" + event); 3363 int result = imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3364 mInputMethodCallback); 3365 if (result != EVENT_NOT_HANDLED) { 3366 return result; 3367 } 3368 } 3369 } 3370 } 3371 3372 // Not dispatching to IME, continue with post IME actions. 3373 return deliverTrackballEventPostIme(q); 3374 } 3375 3376 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3377 final MotionEvent event = (MotionEvent) q.mEvent; 3378 3379 // If there is no view, then the event will not be handled. 3380 if (mView == null || !mAdded) { 3381 return EVENT_NOT_HANDLED; 3382 } 3383 3384 // Deliver the trackball event to the view. 3385 if (mView.dispatchTrackballEvent(event)) { 3386 // If we reach this, we delivered a trackball event to mView and 3387 // mView consumed it. Because we will not translate the trackball 3388 // event into a key event, touch mode will not exit, so we exit 3389 // touch mode here. 3390 ensureTouchMode(false); 3391 mLastTrackballTime = Integer.MIN_VALUE; 3392 return EVENT_HANDLED; 3393 } 3394 3395 // Translate the trackball event into DPAD keys and try to deliver those. 3396 final TrackballAxis x = mTrackballAxisX; 3397 final TrackballAxis y = mTrackballAxisY; 3398 3399 long curTime = SystemClock.uptimeMillis(); 3400 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3401 // It has been too long since the last movement, 3402 // so restart at the beginning. 3403 x.reset(0); 3404 y.reset(0); 3405 mLastTrackballTime = curTime; 3406 } 3407 3408 final int action = event.getAction(); 3409 final int metaState = event.getMetaState(); 3410 switch (action) { 3411 case MotionEvent.ACTION_DOWN: 3412 x.reset(2); 3413 y.reset(2); 3414 enqueueInputEvent(new KeyEvent(curTime, curTime, 3415 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3416 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3417 InputDevice.SOURCE_KEYBOARD)); 3418 break; 3419 case MotionEvent.ACTION_UP: 3420 x.reset(2); 3421 y.reset(2); 3422 enqueueInputEvent(new KeyEvent(curTime, curTime, 3423 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3424 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3425 InputDevice.SOURCE_KEYBOARD)); 3426 break; 3427 } 3428 3429 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3430 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3431 + " move=" + event.getX() 3432 + " / Y=" + y.position + " step=" 3433 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3434 + " move=" + event.getY()); 3435 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3436 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3437 3438 // Generate DPAD events based on the trackball movement. 3439 // We pick the axis that has moved the most as the direction of 3440 // the DPAD. When we generate DPAD events for one axis, then the 3441 // other axis is reset -- we don't want to perform DPAD jumps due 3442 // to slight movements in the trackball when making major movements 3443 // along the other axis. 3444 int keycode = 0; 3445 int movement = 0; 3446 float accel = 1; 3447 if (xOff > yOff) { 3448 movement = x.generate((2/event.getXPrecision())); 3449 if (movement != 0) { 3450 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3451 : KeyEvent.KEYCODE_DPAD_LEFT; 3452 accel = x.acceleration; 3453 y.reset(2); 3454 } 3455 } else if (yOff > 0) { 3456 movement = y.generate((2/event.getYPrecision())); 3457 if (movement != 0) { 3458 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3459 : KeyEvent.KEYCODE_DPAD_UP; 3460 accel = y.acceleration; 3461 x.reset(2); 3462 } 3463 } 3464 3465 if (keycode != 0) { 3466 if (movement < 0) movement = -movement; 3467 int accelMovement = (int)(movement * accel); 3468 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3469 + " accelMovement=" + accelMovement 3470 + " accel=" + accel); 3471 if (accelMovement > movement) { 3472 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3473 + keycode); 3474 movement--; 3475 int repeatCount = accelMovement - movement; 3476 enqueueInputEvent(new KeyEvent(curTime, curTime, 3477 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3478 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3479 InputDevice.SOURCE_KEYBOARD)); 3480 } 3481 while (movement > 0) { 3482 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3483 + keycode); 3484 movement--; 3485 curTime = SystemClock.uptimeMillis(); 3486 enqueueInputEvent(new KeyEvent(curTime, curTime, 3487 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3488 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3489 InputDevice.SOURCE_KEYBOARD)); 3490 enqueueInputEvent(new KeyEvent(curTime, curTime, 3491 KeyEvent.ACTION_UP, keycode, 0, metaState, 3492 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3493 InputDevice.SOURCE_KEYBOARD)); 3494 } 3495 mLastTrackballTime = curTime; 3496 } 3497 3498 // Unfortunately we can't tell whether the application consumed the keys, so 3499 // we always consider the trackball event handled. 3500 return EVENT_HANDLED; 3501 } 3502 3503 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3504 final MotionEvent event = (MotionEvent)q.mEvent; 3505 if (mInputEventConsistencyVerifier != null) { 3506 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3507 } 3508 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3509 if (LOCAL_LOGV) 3510 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3511 3512 // Dispatch to the IME before propagating down the view hierarchy. 3513 // The IME will eventually call back into handleImeFinishedEvent. 3514 if (mLastWasImTarget) { 3515 InputMethodManager imm = InputMethodManager.peekInstance(); 3516 if (imm != null) { 3517 final int seq = event.getSequenceNumber(); 3518 if (DEBUG_IMF) 3519 Log.v(TAG, "Sending generic motion event to IME: seq=" 3520 + seq + " event=" + event); 3521 int result = imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3522 mInputMethodCallback); 3523 if (result != EVENT_NOT_HANDLED) { 3524 return result; 3525 } 3526 } 3527 } 3528 } 3529 3530 // Not dispatching to IME, continue with post IME actions. 3531 return deliverGenericMotionEventPostIme(q); 3532 } 3533 3534 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3535 final MotionEvent event = (MotionEvent) q.mEvent; 3536 final int source = event.getSource(); 3537 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3538 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3539 3540 // If there is no view, then the event will not be handled. 3541 if (mView == null || !mAdded) { 3542 if (isJoystick) { 3543 updateJoystickDirection(event, false); 3544 } else if (isTouchPad) { 3545 mSimulatedDpad.updateTouchPad(this, event, false); 3546 } 3547 return EVENT_NOT_HANDLED; 3548 } 3549 3550 // Deliver the event to the view. 3551 if (mView.dispatchGenericMotionEvent(event)) { 3552 if (isJoystick) { 3553 updateJoystickDirection(event, false); 3554 } else if (isTouchPad) { 3555 mSimulatedDpad.updateTouchPad(this, event, false); 3556 } 3557 return EVENT_HANDLED; 3558 } 3559 3560 if (isJoystick) { 3561 // Translate the joystick event into DPAD keys and try to deliver 3562 // those. 3563 updateJoystickDirection(event, true); 3564 return EVENT_HANDLED; 3565 } 3566 if (isTouchPad) { 3567 mSimulatedDpad.updateTouchPad(this, event, true); 3568 return EVENT_HANDLED; 3569 } 3570 return EVENT_NOT_HANDLED; 3571 } 3572 3573 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3574 final long time = event.getEventTime(); 3575 final int metaState = event.getMetaState(); 3576 final int deviceId = event.getDeviceId(); 3577 final int source = event.getSource(); 3578 3579 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3580 if (xDirection == 0) { 3581 xDirection = joystickAxisValueToDirection(event.getX()); 3582 } 3583 3584 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3585 if (yDirection == 0) { 3586 yDirection = joystickAxisValueToDirection(event.getY()); 3587 } 3588 3589 if (xDirection != mLastJoystickXDirection) { 3590 if (mLastJoystickXKeyCode != 0) { 3591 enqueueInputEvent(new KeyEvent(time, time, 3592 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3593 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3594 mLastJoystickXKeyCode = 0; 3595 } 3596 3597 mLastJoystickXDirection = xDirection; 3598 3599 if (xDirection != 0 && synthesizeNewKeys) { 3600 mLastJoystickXKeyCode = xDirection > 0 3601 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3602 enqueueInputEvent(new KeyEvent(time, time, 3603 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3604 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3605 } 3606 } 3607 3608 if (yDirection != mLastJoystickYDirection) { 3609 if (mLastJoystickYKeyCode != 0) { 3610 enqueueInputEvent(new KeyEvent(time, time, 3611 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3612 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3613 mLastJoystickYKeyCode = 0; 3614 } 3615 3616 mLastJoystickYDirection = yDirection; 3617 3618 if (yDirection != 0 && synthesizeNewKeys) { 3619 mLastJoystickYKeyCode = yDirection > 0 3620 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3621 enqueueInputEvent(new KeyEvent(time, time, 3622 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3623 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3624 } 3625 } 3626 } 3627 3628 private static int joystickAxisValueToDirection(float value) { 3629 if (value >= 0.5f) { 3630 return 1; 3631 } else if (value <= -0.5f) { 3632 return -1; 3633 } else { 3634 return 0; 3635 } 3636 } 3637 3638 /** 3639 * Returns true if the key is used for keyboard navigation. 3640 * @param keyEvent The key event. 3641 * @return True if the key is used for keyboard navigation. 3642 */ 3643 private static boolean isNavigationKey(KeyEvent keyEvent) { 3644 switch (keyEvent.getKeyCode()) { 3645 case KeyEvent.KEYCODE_DPAD_LEFT: 3646 case KeyEvent.KEYCODE_DPAD_RIGHT: 3647 case KeyEvent.KEYCODE_DPAD_UP: 3648 case KeyEvent.KEYCODE_DPAD_DOWN: 3649 case KeyEvent.KEYCODE_DPAD_CENTER: 3650 case KeyEvent.KEYCODE_PAGE_UP: 3651 case KeyEvent.KEYCODE_PAGE_DOWN: 3652 case KeyEvent.KEYCODE_MOVE_HOME: 3653 case KeyEvent.KEYCODE_MOVE_END: 3654 case KeyEvent.KEYCODE_TAB: 3655 case KeyEvent.KEYCODE_SPACE: 3656 case KeyEvent.KEYCODE_ENTER: 3657 return true; 3658 } 3659 return false; 3660 } 3661 3662 /** 3663 * Returns true if the key is used for typing. 3664 * @param keyEvent The key event. 3665 * @return True if the key is used for typing. 3666 */ 3667 private static boolean isTypingKey(KeyEvent keyEvent) { 3668 return keyEvent.getUnicodeChar() > 0; 3669 } 3670 3671 /** 3672 * See if the key event means we should leave touch mode (and leave touch mode if so). 3673 * @param event The key event. 3674 * @return Whether this key event should be consumed (meaning the act of 3675 * leaving touch mode alone is considered the event). 3676 */ 3677 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3678 // Only relevant in touch mode. 3679 if (!mAttachInfo.mInTouchMode) { 3680 return false; 3681 } 3682 3683 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3684 final int action = event.getAction(); 3685 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3686 return false; 3687 } 3688 3689 // Don't leave touch mode if the IME told us not to. 3690 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3691 return false; 3692 } 3693 3694 // If the key can be used for keyboard navigation then leave touch mode 3695 // and select a focused view if needed (in ensureTouchMode). 3696 // When a new focused view is selected, we consume the navigation key because 3697 // navigation doesn't make much sense unless a view already has focus so 3698 // the key's purpose is to set focus. 3699 if (isNavigationKey(event)) { 3700 return ensureTouchMode(false); 3701 } 3702 3703 // If the key can be used for typing then leave touch mode 3704 // and select a focused view if needed (in ensureTouchMode). 3705 // Always allow the view to process the typing key. 3706 if (isTypingKey(event)) { 3707 ensureTouchMode(false); 3708 return false; 3709 } 3710 3711 return false; 3712 } 3713 3714 private int deliverKeyEvent(QueuedInputEvent q) { 3715 final KeyEvent event = (KeyEvent)q.mEvent; 3716 if (mInputEventConsistencyVerifier != null) { 3717 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3718 } 3719 3720 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3721 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3722 3723 // Perform predispatching before the IME. 3724 if (mView.dispatchKeyEventPreIme(event)) { 3725 return EVENT_HANDLED; 3726 } 3727 3728 // Dispatch to the IME before propagating down the view hierarchy. 3729 // The IME will eventually call back into handleImeFinishedEvent. 3730 if (mLastWasImTarget) { 3731 InputMethodManager imm = InputMethodManager.peekInstance(); 3732 if (imm != null) { 3733 final int seq = event.getSequenceNumber(); 3734 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3735 + seq + " event=" + event); 3736 int result = imm.dispatchKeyEvent(mView.getContext(), seq, event, 3737 mInputMethodCallback); 3738 if (result != EVENT_NOT_HANDLED) { 3739 return result; 3740 } 3741 } 3742 } 3743 } 3744 3745 // Not dispatching to IME, continue with post IME actions. 3746 return deliverKeyEventPostIme(q); 3747 } 3748 3749 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3750 final KeyEvent event = (KeyEvent)q.mEvent; 3751 3752 // If the view went away, then the event will not be handled. 3753 if (mView == null || !mAdded) { 3754 return EVENT_NOT_HANDLED; 3755 } 3756 3757 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3758 if (checkForLeavingTouchModeAndConsume(event)) { 3759 return EVENT_HANDLED; 3760 } 3761 3762 // Make sure the fallback event policy sees all keys that will be delivered to the 3763 // view hierarchy. 3764 mFallbackEventHandler.preDispatchKeyEvent(event); 3765 3766 // Deliver the key to the view hierarchy. 3767 if (mView.dispatchKeyEvent(event)) { 3768 return EVENT_HANDLED; 3769 } 3770 3771 // If the Control modifier is held, try to interpret the key as a shortcut. 3772 if (event.getAction() == KeyEvent.ACTION_DOWN 3773 && event.isCtrlPressed() 3774 && event.getRepeatCount() == 0 3775 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3776 if (mView.dispatchKeyShortcutEvent(event)) { 3777 return EVENT_HANDLED; 3778 } 3779 } 3780 3781 // Apply the fallback event policy. 3782 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3783 return EVENT_HANDLED; 3784 } 3785 3786 // Handle automatic focus changes. 3787 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3788 int direction = 0; 3789 switch (event.getKeyCode()) { 3790 case KeyEvent.KEYCODE_DPAD_LEFT: 3791 if (event.hasNoModifiers()) { 3792 direction = View.FOCUS_LEFT; 3793 } 3794 break; 3795 case KeyEvent.KEYCODE_DPAD_RIGHT: 3796 if (event.hasNoModifiers()) { 3797 direction = View.FOCUS_RIGHT; 3798 } 3799 break; 3800 case KeyEvent.KEYCODE_DPAD_UP: 3801 if (event.hasNoModifiers()) { 3802 direction = View.FOCUS_UP; 3803 } 3804 break; 3805 case KeyEvent.KEYCODE_DPAD_DOWN: 3806 if (event.hasNoModifiers()) { 3807 direction = View.FOCUS_DOWN; 3808 } 3809 break; 3810 case KeyEvent.KEYCODE_TAB: 3811 if (event.hasNoModifiers()) { 3812 direction = View.FOCUS_FORWARD; 3813 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3814 direction = View.FOCUS_BACKWARD; 3815 } 3816 break; 3817 } 3818 if (direction != 0) { 3819 View focused = mView.findFocus(); 3820 if (focused != null) { 3821 View v = focused.focusSearch(direction); 3822 if (v != null && v != focused) { 3823 // do the math the get the interesting rect 3824 // of previous focused into the coord system of 3825 // newly focused view 3826 focused.getFocusedRect(mTempRect); 3827 if (mView instanceof ViewGroup) { 3828 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3829 focused, mTempRect); 3830 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3831 v, mTempRect); 3832 } 3833 if (v.requestFocus(direction, mTempRect)) { 3834 playSoundEffect(SoundEffectConstants 3835 .getContantForFocusDirection(direction)); 3836 return EVENT_HANDLED; 3837 } 3838 } 3839 3840 // Give the focused view a last chance to handle the dpad key. 3841 if (mView.dispatchUnhandledMove(focused, direction)) { 3842 return EVENT_HANDLED; 3843 } 3844 } 3845 } 3846 } 3847 3848 // Key was unhandled. 3849 return EVENT_NOT_HANDLED; 3850 } 3851 3852 /* drag/drop */ 3853 void setLocalDragState(Object obj) { 3854 mLocalDragState = obj; 3855 } 3856 3857 private void handleDragEvent(DragEvent event) { 3858 // From the root, only drag start/end/location are dispatched. entered/exited 3859 // are determined and dispatched by the viewgroup hierarchy, who then report 3860 // that back here for ultimate reporting back to the framework. 3861 if (mView != null && mAdded) { 3862 final int what = event.mAction; 3863 3864 if (what == DragEvent.ACTION_DRAG_EXITED) { 3865 // A direct EXITED event means that the window manager knows we've just crossed 3866 // a window boundary, so the current drag target within this one must have 3867 // just been exited. Send it the usual notifications and then we're done 3868 // for now. 3869 mView.dispatchDragEvent(event); 3870 } else { 3871 // Cache the drag description when the operation starts, then fill it in 3872 // on subsequent calls as a convenience 3873 if (what == DragEvent.ACTION_DRAG_STARTED) { 3874 mCurrentDragView = null; // Start the current-recipient tracking 3875 mDragDescription = event.mClipDescription; 3876 } else { 3877 event.mClipDescription = mDragDescription; 3878 } 3879 3880 // For events with a [screen] location, translate into window coordinates 3881 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3882 mDragPoint.set(event.mX, event.mY); 3883 if (mTranslator != null) { 3884 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3885 } 3886 3887 if (mCurScrollY != 0) { 3888 mDragPoint.offset(0, mCurScrollY); 3889 } 3890 3891 event.mX = mDragPoint.x; 3892 event.mY = mDragPoint.y; 3893 } 3894 3895 // Remember who the current drag target is pre-dispatch 3896 final View prevDragView = mCurrentDragView; 3897 3898 // Now dispatch the drag/drop event 3899 boolean result = mView.dispatchDragEvent(event); 3900 3901 // If we changed apparent drag target, tell the OS about it 3902 if (prevDragView != mCurrentDragView) { 3903 try { 3904 if (prevDragView != null) { 3905 mWindowSession.dragRecipientExited(mWindow); 3906 } 3907 if (mCurrentDragView != null) { 3908 mWindowSession.dragRecipientEntered(mWindow); 3909 } 3910 } catch (RemoteException e) { 3911 Slog.e(TAG, "Unable to note drag target change"); 3912 } 3913 } 3914 3915 // Report the drop result when we're done 3916 if (what == DragEvent.ACTION_DROP) { 3917 mDragDescription = null; 3918 try { 3919 Log.i(TAG, "Reporting drop result: " + result); 3920 mWindowSession.reportDropResult(mWindow, result); 3921 } catch (RemoteException e) { 3922 Log.e(TAG, "Unable to report drop result"); 3923 } 3924 } 3925 3926 // When the drag operation ends, release any local state object 3927 // that may have been in use 3928 if (what == DragEvent.ACTION_DRAG_ENDED) { 3929 setLocalDragState(null); 3930 } 3931 } 3932 } 3933 event.recycle(); 3934 } 3935 3936 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3937 if (mSeq != args.seq) { 3938 // The sequence has changed, so we need to update our value and make 3939 // sure to do a traversal afterward so the window manager is given our 3940 // most recent data. 3941 mSeq = args.seq; 3942 mAttachInfo.mForceReportNewAttributes = true; 3943 scheduleTraversals(); 3944 } 3945 if (mView == null) return; 3946 if (args.localChanges != 0) { 3947 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3948 } 3949 if (mAttachInfo != null) { 3950 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3951 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3952 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3953 mView.dispatchSystemUiVisibilityChanged(visibility); 3954 } 3955 } 3956 } 3957 3958 public void handleDispatchDoneAnimating() { 3959 if (mWindowsAnimating) { 3960 mWindowsAnimating = false; 3961 if (!mDirty.isEmpty() || mIsAnimating) { 3962 scheduleTraversals(); 3963 } 3964 } 3965 } 3966 3967 public void getLastTouchPoint(Point outLocation) { 3968 outLocation.x = (int) mLastTouchPoint.x; 3969 outLocation.y = (int) mLastTouchPoint.y; 3970 } 3971 3972 public void setDragFocus(View newDragTarget) { 3973 if (mCurrentDragView != newDragTarget) { 3974 mCurrentDragView = newDragTarget; 3975 } 3976 } 3977 3978 private AudioManager getAudioManager() { 3979 if (mView == null) { 3980 throw new IllegalStateException("getAudioManager called when there is no mView"); 3981 } 3982 if (mAudioManager == null) { 3983 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3984 } 3985 return mAudioManager; 3986 } 3987 3988 public AccessibilityInteractionController getAccessibilityInteractionController() { 3989 if (mView == null) { 3990 throw new IllegalStateException("getAccessibilityInteractionController" 3991 + " called when there is no mView"); 3992 } 3993 if (mAccessibilityInteractionController == null) { 3994 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3995 } 3996 return mAccessibilityInteractionController; 3997 } 3998 3999 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4000 boolean insetsPending) throws RemoteException { 4001 4002 float appScale = mAttachInfo.mApplicationScale; 4003 boolean restore = false; 4004 if (params != null && mTranslator != null) { 4005 restore = true; 4006 params.backup(); 4007 mTranslator.translateWindowLayout(params); 4008 } 4009 if (params != null) { 4010 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4011 } 4012 mPendingConfiguration.seq = 0; 4013 //Log.d(TAG, ">>>>>> CALLING relayout"); 4014 if (params != null && mOrigWindowType != params.type) { 4015 // For compatibility with old apps, don't crash here. 4016 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4017 Slog.w(TAG, "Window type can not be changed after " 4018 + "the window is added; ignoring change of " + mView); 4019 params.type = mOrigWindowType; 4020 } 4021 } 4022 int relayoutResult = mWindowSession.relayout( 4023 mWindow, mSeq, params, 4024 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4025 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4026 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4027 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 4028 mPendingConfiguration, mSurface); 4029 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4030 if (restore) { 4031 params.restore(); 4032 } 4033 4034 if (mTranslator != null) { 4035 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4036 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4037 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4038 } 4039 return relayoutResult; 4040 } 4041 4042 /** 4043 * {@inheritDoc} 4044 */ 4045 public void playSoundEffect(int effectId) { 4046 checkThread(); 4047 4048 try { 4049 final AudioManager audioManager = getAudioManager(); 4050 4051 switch (effectId) { 4052 case SoundEffectConstants.CLICK: 4053 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4054 return; 4055 case SoundEffectConstants.NAVIGATION_DOWN: 4056 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4057 return; 4058 case SoundEffectConstants.NAVIGATION_LEFT: 4059 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4060 return; 4061 case SoundEffectConstants.NAVIGATION_RIGHT: 4062 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4063 return; 4064 case SoundEffectConstants.NAVIGATION_UP: 4065 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4066 return; 4067 default: 4068 throw new IllegalArgumentException("unknown effect id " + effectId + 4069 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4070 } 4071 } catch (IllegalStateException e) { 4072 // Exception thrown by getAudioManager() when mView is null 4073 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4074 e.printStackTrace(); 4075 } 4076 } 4077 4078 /** 4079 * {@inheritDoc} 4080 */ 4081 public boolean performHapticFeedback(int effectId, boolean always) { 4082 try { 4083 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4084 } catch (RemoteException e) { 4085 return false; 4086 } 4087 } 4088 4089 /** 4090 * {@inheritDoc} 4091 */ 4092 public View focusSearch(View focused, int direction) { 4093 checkThread(); 4094 if (!(mView instanceof ViewGroup)) { 4095 return null; 4096 } 4097 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4098 } 4099 4100 public void debug() { 4101 mView.debug(); 4102 } 4103 4104 public void dumpGfxInfo(int[] info) { 4105 info[0] = info[1] = 0; 4106 if (mView != null) { 4107 getGfxInfo(mView, info); 4108 } 4109 } 4110 4111 private static void getGfxInfo(View view, int[] info) { 4112 DisplayList displayList = view.mDisplayList; 4113 info[0]++; 4114 if (displayList != null) { 4115 info[1] += displayList.getSize(); 4116 } 4117 4118 if (view instanceof ViewGroup) { 4119 ViewGroup group = (ViewGroup) view; 4120 4121 int count = group.getChildCount(); 4122 for (int i = 0; i < count; i++) { 4123 getGfxInfo(group.getChildAt(i), info); 4124 } 4125 } 4126 } 4127 4128 public void die(boolean immediate) { 4129 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4130 // done by dispatchDetachedFromWindow will cause havoc on return. 4131 if (immediate && !mIsInTraversal) { 4132 doDie(); 4133 } else { 4134 if (!mIsDrawing) { 4135 destroyHardwareRenderer(); 4136 } else { 4137 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4138 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4139 } 4140 mHandler.sendEmptyMessage(MSG_DIE); 4141 } 4142 } 4143 4144 void doDie() { 4145 checkThread(); 4146 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4147 synchronized (this) { 4148 if (mAdded) { 4149 dispatchDetachedFromWindow(); 4150 } 4151 4152 if (mAdded && !mFirst) { 4153 invalidateDisplayLists(); 4154 destroyHardwareRenderer(); 4155 4156 if (mView != null) { 4157 int viewVisibility = mView.getVisibility(); 4158 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4159 if (mWindowAttributesChanged || viewVisibilityChanged) { 4160 // If layout params have been changed, first give them 4161 // to the window manager to make sure it has the correct 4162 // animation info. 4163 try { 4164 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4165 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4166 mWindowSession.finishDrawing(mWindow); 4167 } 4168 } catch (RemoteException e) { 4169 } 4170 } 4171 4172 mSurface.release(); 4173 } 4174 } 4175 4176 mAdded = false; 4177 } 4178 } 4179 4180 public void requestUpdateConfiguration(Configuration config) { 4181 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4182 mHandler.sendMessage(msg); 4183 } 4184 4185 public void loadSystemProperties() { 4186 mHandler.post(new Runnable() { 4187 @Override 4188 public void run() { 4189 // Profiling 4190 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4191 profileRendering(mAttachInfo.mHasWindowFocus); 4192 4193 // Hardware rendering 4194 if (mAttachInfo.mHardwareRenderer != null) { 4195 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4196 invalidate(); 4197 } 4198 } 4199 4200 // Layout debugging 4201 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4202 if (layout != mAttachInfo.mDebugLayout) { 4203 mAttachInfo.mDebugLayout = layout; 4204 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4205 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4206 } 4207 } 4208 } 4209 }); 4210 } 4211 4212 private void destroyHardwareRenderer() { 4213 AttachInfo attachInfo = mAttachInfo; 4214 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4215 4216 if (hardwareRenderer != null) { 4217 if (mView != null) { 4218 hardwareRenderer.destroyHardwareResources(mView); 4219 } 4220 hardwareRenderer.destroy(true); 4221 hardwareRenderer.setRequested(false); 4222 4223 attachInfo.mHardwareRenderer = null; 4224 attachInfo.mHardwareAccelerated = false; 4225 } 4226 } 4227 4228 void dispatchImeFinishedEvent(int seq, boolean handled) { 4229 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4230 msg.arg1 = seq; 4231 msg.arg2 = handled ? 1 : 0; 4232 msg.setAsynchronous(true); 4233 mHandler.sendMessage(msg); 4234 } 4235 4236 public void dispatchFinishInputConnection(InputConnection connection) { 4237 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4238 mHandler.sendMessage(msg); 4239 } 4240 4241 public void dispatchResized(Rect frame, Rect contentInsets, 4242 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4243 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4244 + " contentInsets=" + contentInsets.toShortString() 4245 + " visibleInsets=" + visibleInsets.toShortString() 4246 + " reportDraw=" + reportDraw); 4247 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4248 if (mTranslator != null) { 4249 mTranslator.translateRectInScreenToAppWindow(frame); 4250 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4251 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4252 } 4253 SomeArgs args = SomeArgs.obtain(); 4254 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4255 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4256 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4257 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4258 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4259 msg.obj = args; 4260 mHandler.sendMessage(msg); 4261 } 4262 4263 public void dispatchMoved(int newX, int newY) { 4264 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4265 if (mTranslator != null) { 4266 PointF point = new PointF(newX, newY); 4267 mTranslator.translatePointInScreenToAppWindow(point); 4268 newX = (int) (point.x + 0.5); 4269 newY = (int) (point.y + 0.5); 4270 } 4271 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4272 mHandler.sendMessage(msg); 4273 } 4274 4275 /** 4276 * Represents a pending input event that is waiting in a queue. 4277 * 4278 * Input events are processed in serial order by the timestamp specified by 4279 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4280 * one input event to the application at a time and waits for the application 4281 * to finish handling it before delivering the next one. 4282 * 4283 * However, because the application or IME can synthesize and inject multiple 4284 * key events at a time without going through the input dispatcher, we end up 4285 * needing a queue on the application's side. 4286 */ 4287 private static final class QueuedInputEvent { 4288 public static final int FLAG_DELIVER_POST_IME = 1; 4289 4290 public QueuedInputEvent mNext; 4291 4292 public InputEvent mEvent; 4293 public InputEventReceiver mReceiver; 4294 public int mFlags; 4295 } 4296 4297 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4298 InputEventReceiver receiver, int flags) { 4299 QueuedInputEvent q = mQueuedInputEventPool; 4300 if (q != null) { 4301 mQueuedInputEventPoolSize -= 1; 4302 mQueuedInputEventPool = q.mNext; 4303 q.mNext = null; 4304 } else { 4305 q = new QueuedInputEvent(); 4306 } 4307 4308 q.mEvent = event; 4309 q.mReceiver = receiver; 4310 q.mFlags = flags; 4311 return q; 4312 } 4313 4314 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4315 q.mEvent = null; 4316 q.mReceiver = null; 4317 4318 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4319 mQueuedInputEventPoolSize += 1; 4320 q.mNext = mQueuedInputEventPool; 4321 mQueuedInputEventPool = q; 4322 } 4323 } 4324 4325 void enqueueInputEvent(InputEvent event) { 4326 enqueueInputEvent(event, null, 0, false); 4327 } 4328 4329 void enqueueInputEvent(InputEvent event, 4330 InputEventReceiver receiver, int flags, boolean processImmediately) { 4331 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4332 4333 // Always enqueue the input event in order, regardless of its time stamp. 4334 // We do this because the application or the IME may inject key events 4335 // in response to touch events and we want to ensure that the injected keys 4336 // are processed in the order they were received and we cannot trust that 4337 // the time stamp of injected events are monotonic. 4338 QueuedInputEvent last = mFirstPendingInputEvent; 4339 if (last == null) { 4340 mFirstPendingInputEvent = q; 4341 } else { 4342 while (last.mNext != null) { 4343 last = last.mNext; 4344 } 4345 last.mNext = q; 4346 } 4347 4348 if (processImmediately) { 4349 doProcessInputEvents(); 4350 } else { 4351 scheduleProcessInputEvents(); 4352 } 4353 } 4354 4355 private void scheduleProcessInputEvents() { 4356 if (!mProcessInputEventsScheduled) { 4357 mProcessInputEventsScheduled = true; 4358 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4359 msg.setAsynchronous(true); 4360 mHandler.sendMessage(msg); 4361 } 4362 } 4363 4364 void doProcessInputEvents() { 4365 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4366 QueuedInputEvent q = mFirstPendingInputEvent; 4367 mFirstPendingInputEvent = q.mNext; 4368 q.mNext = null; 4369 mCurrentInputEvent = q; 4370 4371 final int result = deliverInputEvent(q); 4372 if (result != EVENT_IN_PROGRESS) { 4373 finishCurrentInputEvent(result == EVENT_HANDLED); 4374 } 4375 } 4376 4377 // We are done processing all input events that we can process right now 4378 // so we can clear the pending flag immediately. 4379 if (mProcessInputEventsScheduled) { 4380 mProcessInputEventsScheduled = false; 4381 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4382 } 4383 } 4384 4385 void handleImeFinishedEvent(int seq, boolean handled) { 4386 final QueuedInputEvent q = mCurrentInputEvent; 4387 if (q != null && q.mEvent.getSequenceNumber() == seq) { 4388 if (DEBUG_IMF) { 4389 Log.v(TAG, "IME finished event: seq=" + seq 4390 + " handled=" + handled + " event=" + q); 4391 } 4392 4393 if (!handled) { 4394 // If the window doesn't currently have input focus, then drop 4395 // this event. This could be an event that came back from the 4396 // IME dispatch but the window has lost focus in the meantime. 4397 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4398 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4399 } else { 4400 final int result = deliverInputEventPostIme(q); 4401 if (result == EVENT_HANDLED) { 4402 handled = true; 4403 } 4404 } 4405 } 4406 finishCurrentInputEvent(handled); 4407 4408 // Immediately start processing the next input event. 4409 doProcessInputEvents(); 4410 } else { 4411 if (DEBUG_IMF) { 4412 Log.v(TAG, "IME finished event: seq=" + seq 4413 + " handled=" + handled + ", event not found!"); 4414 } 4415 } 4416 } 4417 4418 private void finishCurrentInputEvent(boolean handled) { 4419 final QueuedInputEvent q = mCurrentInputEvent; 4420 mCurrentInputEvent = null; 4421 4422 if (q.mReceiver != null) { 4423 q.mReceiver.finishInputEvent(q.mEvent, handled); 4424 } else { 4425 q.mEvent.recycleIfNeededAfterDispatch(); 4426 } 4427 4428 recycleQueuedInputEvent(q); 4429 } 4430 4431 private static boolean isTerminalInputEvent(InputEvent event) { 4432 if (event instanceof KeyEvent) { 4433 final KeyEvent keyEvent = (KeyEvent)event; 4434 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4435 } else { 4436 final MotionEvent motionEvent = (MotionEvent)event; 4437 final int action = motionEvent.getAction(); 4438 return action == MotionEvent.ACTION_UP 4439 || action == MotionEvent.ACTION_CANCEL 4440 || action == MotionEvent.ACTION_HOVER_EXIT; 4441 } 4442 } 4443 4444 void scheduleConsumeBatchedInput() { 4445 if (!mConsumeBatchedInputScheduled) { 4446 mConsumeBatchedInputScheduled = true; 4447 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4448 mConsumedBatchedInputRunnable, null); 4449 } 4450 } 4451 4452 void unscheduleConsumeBatchedInput() { 4453 if (mConsumeBatchedInputScheduled) { 4454 mConsumeBatchedInputScheduled = false; 4455 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4456 mConsumedBatchedInputRunnable, null); 4457 } 4458 } 4459 4460 void doConsumeBatchedInput(long frameTimeNanos) { 4461 if (mConsumeBatchedInputScheduled) { 4462 mConsumeBatchedInputScheduled = false; 4463 if (mInputEventReceiver != null) { 4464 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4465 } 4466 doProcessInputEvents(); 4467 } 4468 } 4469 4470 final class TraversalRunnable implements Runnable { 4471 @Override 4472 public void run() { 4473 doTraversal(); 4474 } 4475 } 4476 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4477 4478 final class WindowInputEventReceiver extends InputEventReceiver { 4479 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4480 super(inputChannel, looper); 4481 } 4482 4483 @Override 4484 public void onInputEvent(InputEvent event) { 4485 enqueueInputEvent(event, this, 0, true); 4486 } 4487 4488 @Override 4489 public void onBatchedInputEventPending() { 4490 scheduleConsumeBatchedInput(); 4491 } 4492 4493 @Override 4494 public void dispose() { 4495 unscheduleConsumeBatchedInput(); 4496 super.dispose(); 4497 } 4498 } 4499 WindowInputEventReceiver mInputEventReceiver; 4500 4501 final class ConsumeBatchedInputRunnable implements Runnable { 4502 @Override 4503 public void run() { 4504 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4505 } 4506 } 4507 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4508 new ConsumeBatchedInputRunnable(); 4509 boolean mConsumeBatchedInputScheduled; 4510 4511 final class InvalidateOnAnimationRunnable implements Runnable { 4512 private boolean mPosted; 4513 private ArrayList<View> mViews = new ArrayList<View>(); 4514 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4515 new ArrayList<AttachInfo.InvalidateInfo>(); 4516 private View[] mTempViews; 4517 private AttachInfo.InvalidateInfo[] mTempViewRects; 4518 4519 public void addView(View view) { 4520 synchronized (this) { 4521 mViews.add(view); 4522 postIfNeededLocked(); 4523 } 4524 } 4525 4526 public void addViewRect(AttachInfo.InvalidateInfo info) { 4527 synchronized (this) { 4528 mViewRects.add(info); 4529 postIfNeededLocked(); 4530 } 4531 } 4532 4533 public void removeView(View view) { 4534 synchronized (this) { 4535 mViews.remove(view); 4536 4537 for (int i = mViewRects.size(); i-- > 0; ) { 4538 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4539 if (info.target == view) { 4540 mViewRects.remove(i); 4541 info.recycle(); 4542 } 4543 } 4544 4545 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4546 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4547 mPosted = false; 4548 } 4549 } 4550 } 4551 4552 @Override 4553 public void run() { 4554 final int viewCount; 4555 final int viewRectCount; 4556 synchronized (this) { 4557 mPosted = false; 4558 4559 viewCount = mViews.size(); 4560 if (viewCount != 0) { 4561 mTempViews = mViews.toArray(mTempViews != null 4562 ? mTempViews : new View[viewCount]); 4563 mViews.clear(); 4564 } 4565 4566 viewRectCount = mViewRects.size(); 4567 if (viewRectCount != 0) { 4568 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4569 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4570 mViewRects.clear(); 4571 } 4572 } 4573 4574 for (int i = 0; i < viewCount; i++) { 4575 mTempViews[i].invalidate(); 4576 mTempViews[i] = null; 4577 } 4578 4579 for (int i = 0; i < viewRectCount; i++) { 4580 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4581 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4582 info.recycle(); 4583 } 4584 } 4585 4586 private void postIfNeededLocked() { 4587 if (!mPosted) { 4588 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4589 mPosted = true; 4590 } 4591 } 4592 } 4593 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4594 new InvalidateOnAnimationRunnable(); 4595 4596 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4597 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4598 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4599 } 4600 4601 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4602 long delayMilliseconds) { 4603 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4604 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4605 } 4606 4607 public void dispatchInvalidateOnAnimation(View view) { 4608 mInvalidateOnAnimationRunnable.addView(view); 4609 } 4610 4611 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4612 mInvalidateOnAnimationRunnable.addViewRect(info); 4613 } 4614 4615 public void enqueueDisplayList(DisplayList displayList) { 4616 mDisplayLists.add(displayList); 4617 } 4618 4619 public void cancelInvalidate(View view) { 4620 mHandler.removeMessages(MSG_INVALIDATE, view); 4621 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4622 // them to the pool 4623 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4624 mInvalidateOnAnimationRunnable.removeView(view); 4625 } 4626 4627 public void dispatchKey(KeyEvent event) { 4628 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4629 msg.setAsynchronous(true); 4630 mHandler.sendMessage(msg); 4631 } 4632 4633 public void dispatchKeyFromIme(KeyEvent event) { 4634 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4635 msg.setAsynchronous(true); 4636 mHandler.sendMessage(msg); 4637 } 4638 4639 public void dispatchUnhandledKey(KeyEvent event) { 4640 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4641 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4642 final int keyCode = event.getKeyCode(); 4643 final int metaState = event.getMetaState(); 4644 4645 // Check for fallback actions specified by the key character map. 4646 KeyCharacterMap.FallbackAction fallbackAction = 4647 kcm.getFallbackAction(keyCode, metaState); 4648 if (fallbackAction != null) { 4649 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4650 KeyEvent fallbackEvent = KeyEvent.obtain( 4651 event.getDownTime(), event.getEventTime(), 4652 event.getAction(), fallbackAction.keyCode, 4653 event.getRepeatCount(), fallbackAction.metaState, 4654 event.getDeviceId(), event.getScanCode(), 4655 flags, event.getSource(), null); 4656 fallbackAction.recycle(); 4657 4658 dispatchKey(fallbackEvent); 4659 } 4660 } 4661 } 4662 4663 public void dispatchAppVisibility(boolean visible) { 4664 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4665 msg.arg1 = visible ? 1 : 0; 4666 mHandler.sendMessage(msg); 4667 } 4668 4669 public void dispatchScreenStateChange(boolean on) { 4670 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4671 msg.arg1 = on ? 1 : 0; 4672 mHandler.sendMessage(msg); 4673 } 4674 4675 public void dispatchGetNewSurface() { 4676 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4677 mHandler.sendMessage(msg); 4678 } 4679 4680 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4681 Message msg = Message.obtain(); 4682 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4683 msg.arg1 = hasFocus ? 1 : 0; 4684 msg.arg2 = inTouchMode ? 1 : 0; 4685 mHandler.sendMessage(msg); 4686 } 4687 4688 public void dispatchCloseSystemDialogs(String reason) { 4689 Message msg = Message.obtain(); 4690 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4691 msg.obj = reason; 4692 mHandler.sendMessage(msg); 4693 } 4694 4695 public void dispatchDragEvent(DragEvent event) { 4696 final int what; 4697 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4698 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4699 mHandler.removeMessages(what); 4700 } else { 4701 what = MSG_DISPATCH_DRAG_EVENT; 4702 } 4703 Message msg = mHandler.obtainMessage(what, event); 4704 mHandler.sendMessage(msg); 4705 } 4706 4707 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4708 int localValue, int localChanges) { 4709 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4710 args.seq = seq; 4711 args.globalVisibility = globalVisibility; 4712 args.localValue = localValue; 4713 args.localChanges = localChanges; 4714 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4715 } 4716 4717 public void dispatchDoneAnimating() { 4718 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4719 } 4720 4721 public void dispatchCheckFocus() { 4722 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4723 // This will result in a call to checkFocus() below. 4724 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4725 } 4726 } 4727 4728 /** 4729 * Post a callback to send a 4730 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4731 * This event is send at most once every 4732 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4733 */ 4734 private void postSendWindowContentChangedCallback(View source) { 4735 if (mSendWindowContentChangedAccessibilityEvent == null) { 4736 mSendWindowContentChangedAccessibilityEvent = 4737 new SendWindowContentChangedAccessibilityEvent(); 4738 } 4739 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4740 if (oldSource == null) { 4741 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4742 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4743 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4744 } else { 4745 mSendWindowContentChangedAccessibilityEvent.mSource = 4746 getCommonPredecessor(oldSource, source); 4747 } 4748 } 4749 4750 /** 4751 * Remove a posted callback to send a 4752 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4753 */ 4754 private void removeSendWindowContentChangedCallback() { 4755 if (mSendWindowContentChangedAccessibilityEvent != null) { 4756 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4757 } 4758 } 4759 4760 public boolean showContextMenuForChild(View originalView) { 4761 return false; 4762 } 4763 4764 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4765 return null; 4766 } 4767 4768 public void createContextMenu(ContextMenu menu) { 4769 } 4770 4771 public void childDrawableStateChanged(View child) { 4772 } 4773 4774 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4775 if (mView == null) { 4776 return false; 4777 } 4778 // Intercept accessibility focus events fired by virtual nodes to keep 4779 // track of accessibility focus position in such nodes. 4780 final int eventType = event.getEventType(); 4781 switch (eventType) { 4782 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4783 final long sourceNodeId = event.getSourceNodeId(); 4784 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4785 sourceNodeId); 4786 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4787 if (source != null) { 4788 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4789 if (provider != null) { 4790 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4791 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4792 setAccessibilityFocus(source, node); 4793 } 4794 } 4795 } break; 4796 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4797 final long sourceNodeId = event.getSourceNodeId(); 4798 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4799 sourceNodeId); 4800 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4801 if (source != null) { 4802 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4803 if (provider != null) { 4804 setAccessibilityFocus(null, null); 4805 } 4806 } 4807 } break; 4808 } 4809 mAccessibilityManager.sendAccessibilityEvent(event); 4810 return true; 4811 } 4812 4813 @Override 4814 public void childAccessibilityStateChanged(View child) { 4815 postSendWindowContentChangedCallback(child); 4816 } 4817 4818 private View getCommonPredecessor(View first, View second) { 4819 if (mAttachInfo != null) { 4820 if (mTempHashSet == null) { 4821 mTempHashSet = new HashSet<View>(); 4822 } 4823 HashSet<View> seen = mTempHashSet; 4824 seen.clear(); 4825 View firstCurrent = first; 4826 while (firstCurrent != null) { 4827 seen.add(firstCurrent); 4828 ViewParent firstCurrentParent = firstCurrent.mParent; 4829 if (firstCurrentParent instanceof View) { 4830 firstCurrent = (View) firstCurrentParent; 4831 } else { 4832 firstCurrent = null; 4833 } 4834 } 4835 View secondCurrent = second; 4836 while (secondCurrent != null) { 4837 if (seen.contains(secondCurrent)) { 4838 seen.clear(); 4839 return secondCurrent; 4840 } 4841 ViewParent secondCurrentParent = secondCurrent.mParent; 4842 if (secondCurrentParent instanceof View) { 4843 secondCurrent = (View) secondCurrentParent; 4844 } else { 4845 secondCurrent = null; 4846 } 4847 } 4848 seen.clear(); 4849 } 4850 return null; 4851 } 4852 4853 void checkThread() { 4854 if (mThread != Thread.currentThread()) { 4855 throw new CalledFromWrongThreadException( 4856 "Only the original thread that created a view hierarchy can touch its views."); 4857 } 4858 } 4859 4860 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4861 // ViewAncestor never intercepts touch event, so this can be a no-op 4862 } 4863 4864 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4865 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4866 if (rectangle != null) { 4867 mTempRect.set(rectangle); 4868 mTempRect.offset(0, -mCurScrollY); 4869 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4870 try { 4871 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4872 } catch (RemoteException re) { 4873 /* ignore */ 4874 } 4875 } 4876 return scrolled; 4877 } 4878 4879 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4880 // Do nothing. 4881 } 4882 4883 class TakenSurfaceHolder extends BaseSurfaceHolder { 4884 @Override 4885 public boolean onAllowLockCanvas() { 4886 return mDrawingAllowed; 4887 } 4888 4889 @Override 4890 public void onRelayoutContainer() { 4891 // Not currently interesting -- from changing between fixed and layout size. 4892 } 4893 4894 public void setFormat(int format) { 4895 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4896 } 4897 4898 public void setType(int type) { 4899 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4900 } 4901 4902 @Override 4903 public void onUpdateSurface() { 4904 // We take care of format and type changes on our own. 4905 throw new IllegalStateException("Shouldn't be here"); 4906 } 4907 4908 public boolean isCreating() { 4909 return mIsCreating; 4910 } 4911 4912 @Override 4913 public void setFixedSize(int width, int height) { 4914 throw new UnsupportedOperationException( 4915 "Currently only support sizing from layout"); 4916 } 4917 4918 public void setKeepScreenOn(boolean screenOn) { 4919 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4920 } 4921 } 4922 4923 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4924 private WeakReference<ViewRootImpl> mViewAncestor; 4925 4926 public InputMethodCallback(ViewRootImpl viewAncestor) { 4927 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4928 } 4929 4930 @Override 4931 public void finishedEvent(int seq, boolean handled) { 4932 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4933 if (viewAncestor != null) { 4934 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4935 } 4936 } 4937 } 4938 4939 static class W extends IWindow.Stub { 4940 private final WeakReference<ViewRootImpl> mViewAncestor; 4941 private final IWindowSession mWindowSession; 4942 4943 W(ViewRootImpl viewAncestor) { 4944 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4945 mWindowSession = viewAncestor.mWindowSession; 4946 } 4947 4948 public void resized(Rect frame, Rect contentInsets, 4949 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4950 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4951 if (viewAncestor != null) { 4952 viewAncestor.dispatchResized(frame, contentInsets, 4953 visibleInsets, reportDraw, newConfig); 4954 } 4955 } 4956 4957 @Override 4958 public void moved(int newX, int newY) { 4959 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4960 if (viewAncestor != null) { 4961 viewAncestor.dispatchMoved(newX, newY); 4962 } 4963 } 4964 4965 public void dispatchAppVisibility(boolean visible) { 4966 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4967 if (viewAncestor != null) { 4968 viewAncestor.dispatchAppVisibility(visible); 4969 } 4970 } 4971 4972 public void dispatchScreenState(boolean on) { 4973 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4974 if (viewAncestor != null) { 4975 viewAncestor.dispatchScreenStateChange(on); 4976 } 4977 } 4978 4979 public void dispatchGetNewSurface() { 4980 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4981 if (viewAncestor != null) { 4982 viewAncestor.dispatchGetNewSurface(); 4983 } 4984 } 4985 4986 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4987 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4988 if (viewAncestor != null) { 4989 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4990 } 4991 } 4992 4993 private static int checkCallingPermission(String permission) { 4994 try { 4995 return ActivityManagerNative.getDefault().checkPermission( 4996 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4997 } catch (RemoteException e) { 4998 return PackageManager.PERMISSION_DENIED; 4999 } 5000 } 5001 5002 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 5003 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5004 if (viewAncestor != null) { 5005 final View view = viewAncestor.mView; 5006 if (view != null) { 5007 if (checkCallingPermission(Manifest.permission.DUMP) != 5008 PackageManager.PERMISSION_GRANTED) { 5009 throw new SecurityException("Insufficient permissions to invoke" 5010 + " executeCommand() from pid=" + Binder.getCallingPid() 5011 + ", uid=" + Binder.getCallingUid()); 5012 } 5013 5014 OutputStream clientStream = null; 5015 try { 5016 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5017 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5018 } catch (IOException e) { 5019 e.printStackTrace(); 5020 } finally { 5021 if (clientStream != null) { 5022 try { 5023 clientStream.close(); 5024 } catch (IOException e) { 5025 e.printStackTrace(); 5026 } 5027 } 5028 } 5029 } 5030 } 5031 } 5032 5033 public void closeSystemDialogs(String reason) { 5034 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5035 if (viewAncestor != null) { 5036 viewAncestor.dispatchCloseSystemDialogs(reason); 5037 } 5038 } 5039 5040 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5041 boolean sync) { 5042 if (sync) { 5043 try { 5044 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5045 } catch (RemoteException e) { 5046 } 5047 } 5048 } 5049 5050 public void dispatchWallpaperCommand(String action, int x, int y, 5051 int z, Bundle extras, boolean sync) { 5052 if (sync) { 5053 try { 5054 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5055 } catch (RemoteException e) { 5056 } 5057 } 5058 } 5059 5060 /* Drag/drop */ 5061 public void dispatchDragEvent(DragEvent event) { 5062 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5063 if (viewAncestor != null) { 5064 viewAncestor.dispatchDragEvent(event); 5065 } 5066 } 5067 5068 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5069 int localValue, int localChanges) { 5070 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5071 if (viewAncestor != null) { 5072 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5073 localValue, localChanges); 5074 } 5075 } 5076 5077 public void doneAnimating() { 5078 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5079 if (viewAncestor != null) { 5080 viewAncestor.dispatchDoneAnimating(); 5081 } 5082 } 5083 } 5084 5085 /** 5086 * Maintains state information for a single trackball axis, generating 5087 * discrete (DPAD) movements based on raw trackball motion. 5088 */ 5089 static final class TrackballAxis { 5090 /** 5091 * The maximum amount of acceleration we will apply. 5092 */ 5093 static final float MAX_ACCELERATION = 20; 5094 5095 /** 5096 * The maximum amount of time (in milliseconds) between events in order 5097 * for us to consider the user to be doing fast trackball movements, 5098 * and thus apply an acceleration. 5099 */ 5100 static final long FAST_MOVE_TIME = 150; 5101 5102 /** 5103 * Scaling factor to the time (in milliseconds) between events to how 5104 * much to multiple/divide the current acceleration. When movement 5105 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5106 * FAST_MOVE_TIME it divides it. 5107 */ 5108 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5109 5110 float position; 5111 float absPosition; 5112 float acceleration = 1; 5113 long lastMoveTime = 0; 5114 int step; 5115 int dir; 5116 int nonAccelMovement; 5117 5118 void reset(int _step) { 5119 position = 0; 5120 acceleration = 1; 5121 lastMoveTime = 0; 5122 step = _step; 5123 dir = 0; 5124 } 5125 5126 /** 5127 * Add trackball movement into the state. If the direction of movement 5128 * has been reversed, the state is reset before adding the 5129 * movement (so that you don't have to compensate for any previously 5130 * collected movement before see the result of the movement in the 5131 * new direction). 5132 * 5133 * @return Returns the absolute value of the amount of movement 5134 * collected so far. 5135 */ 5136 float collect(float off, long time, String axis) { 5137 long normTime; 5138 if (off > 0) { 5139 normTime = (long)(off * FAST_MOVE_TIME); 5140 if (dir < 0) { 5141 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5142 position = 0; 5143 step = 0; 5144 acceleration = 1; 5145 lastMoveTime = 0; 5146 } 5147 dir = 1; 5148 } else if (off < 0) { 5149 normTime = (long)((-off) * FAST_MOVE_TIME); 5150 if (dir > 0) { 5151 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5152 position = 0; 5153 step = 0; 5154 acceleration = 1; 5155 lastMoveTime = 0; 5156 } 5157 dir = -1; 5158 } else { 5159 normTime = 0; 5160 } 5161 5162 // The number of milliseconds between each movement that is 5163 // considered "normal" and will not result in any acceleration 5164 // or deceleration, scaled by the offset we have here. 5165 if (normTime > 0) { 5166 long delta = time - lastMoveTime; 5167 lastMoveTime = time; 5168 float acc = acceleration; 5169 if (delta < normTime) { 5170 // The user is scrolling rapidly, so increase acceleration. 5171 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5172 if (scale > 1) acc *= scale; 5173 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5174 + off + " normTime=" + normTime + " delta=" + delta 5175 + " scale=" + scale + " acc=" + acc); 5176 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5177 } else { 5178 // The user is scrolling slowly, so decrease acceleration. 5179 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5180 if (scale > 1) acc /= scale; 5181 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5182 + off + " normTime=" + normTime + " delta=" + delta 5183 + " scale=" + scale + " acc=" + acc); 5184 acceleration = acc > 1 ? acc : 1; 5185 } 5186 } 5187 position += off; 5188 return (absPosition = Math.abs(position)); 5189 } 5190 5191 /** 5192 * Generate the number of discrete movement events appropriate for 5193 * the currently collected trackball movement. 5194 * 5195 * @param precision The minimum movement required to generate the 5196 * first discrete movement. 5197 * 5198 * @return Returns the number of discrete movements, either positive 5199 * or negative, or 0 if there is not enough trackball movement yet 5200 * for a discrete movement. 5201 */ 5202 int generate(float precision) { 5203 int movement = 0; 5204 nonAccelMovement = 0; 5205 do { 5206 final int dir = position >= 0 ? 1 : -1; 5207 switch (step) { 5208 // If we are going to execute the first step, then we want 5209 // to do this as soon as possible instead of waiting for 5210 // a full movement, in order to make things look responsive. 5211 case 0: 5212 if (absPosition < precision) { 5213 return movement; 5214 } 5215 movement += dir; 5216 nonAccelMovement += dir; 5217 step = 1; 5218 break; 5219 // If we have generated the first movement, then we need 5220 // to wait for the second complete trackball motion before 5221 // generating the second discrete movement. 5222 case 1: 5223 if (absPosition < 2) { 5224 return movement; 5225 } 5226 movement += dir; 5227 nonAccelMovement += dir; 5228 position += dir > 0 ? -2 : 2; 5229 absPosition = Math.abs(position); 5230 step = 2; 5231 break; 5232 // After the first two, we generate discrete movements 5233 // consistently with the trackball, applying an acceleration 5234 // if the trackball is moving quickly. This is a simple 5235 // acceleration on top of what we already compute based 5236 // on how quickly the wheel is being turned, to apply 5237 // a longer increasing acceleration to continuous movement 5238 // in one direction. 5239 default: 5240 if (absPosition < 1) { 5241 return movement; 5242 } 5243 movement += dir; 5244 position += dir >= 0 ? -1 : 1; 5245 absPosition = Math.abs(position); 5246 float acc = acceleration; 5247 acc *= 1.1f; 5248 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5249 break; 5250 } 5251 } while (true); 5252 } 5253 } 5254 5255 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5256 public CalledFromWrongThreadException(String msg) { 5257 super(msg); 5258 } 5259 } 5260 5261 private SurfaceHolder mHolder = new SurfaceHolder() { 5262 // we only need a SurfaceHolder for opengl. it would be nice 5263 // to implement everything else though, especially the callback 5264 // support (opengl doesn't make use of it right now, but eventually 5265 // will). 5266 public Surface getSurface() { 5267 return mSurface; 5268 } 5269 5270 public boolean isCreating() { 5271 return false; 5272 } 5273 5274 public void addCallback(Callback callback) { 5275 } 5276 5277 public void removeCallback(Callback callback) { 5278 } 5279 5280 public void setFixedSize(int width, int height) { 5281 } 5282 5283 public void setSizeFromLayout() { 5284 } 5285 5286 public void setFormat(int format) { 5287 } 5288 5289 public void setType(int type) { 5290 } 5291 5292 public void setKeepScreenOn(boolean screenOn) { 5293 } 5294 5295 public Canvas lockCanvas() { 5296 return null; 5297 } 5298 5299 public Canvas lockCanvas(Rect dirty) { 5300 return null; 5301 } 5302 5303 public void unlockCanvasAndPost(Canvas canvas) { 5304 } 5305 public Rect getSurfaceFrame() { 5306 return null; 5307 } 5308 }; 5309 5310 static RunQueue getRunQueue() { 5311 RunQueue rq = sRunQueues.get(); 5312 if (rq != null) { 5313 return rq; 5314 } 5315 rq = new RunQueue(); 5316 sRunQueues.set(rq); 5317 return rq; 5318 } 5319 5320 /** 5321 * The run queue is used to enqueue pending work from Views when no Handler is 5322 * attached. The work is executed during the next call to performTraversals on 5323 * the thread. 5324 * @hide 5325 */ 5326 static final class RunQueue { 5327 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5328 5329 void post(Runnable action) { 5330 postDelayed(action, 0); 5331 } 5332 5333 void postDelayed(Runnable action, long delayMillis) { 5334 HandlerAction handlerAction = new HandlerAction(); 5335 handlerAction.action = action; 5336 handlerAction.delay = delayMillis; 5337 5338 synchronized (mActions) { 5339 mActions.add(handlerAction); 5340 } 5341 } 5342 5343 void removeCallbacks(Runnable action) { 5344 final HandlerAction handlerAction = new HandlerAction(); 5345 handlerAction.action = action; 5346 5347 synchronized (mActions) { 5348 final ArrayList<HandlerAction> actions = mActions; 5349 5350 while (actions.remove(handlerAction)) { 5351 // Keep going 5352 } 5353 } 5354 } 5355 5356 void executeActions(Handler handler) { 5357 synchronized (mActions) { 5358 final ArrayList<HandlerAction> actions = mActions; 5359 final int count = actions.size(); 5360 5361 for (int i = 0; i < count; i++) { 5362 final HandlerAction handlerAction = actions.get(i); 5363 handler.postDelayed(handlerAction.action, handlerAction.delay); 5364 } 5365 5366 actions.clear(); 5367 } 5368 } 5369 5370 private static class HandlerAction { 5371 Runnable action; 5372 long delay; 5373 5374 @Override 5375 public boolean equals(Object o) { 5376 if (this == o) return true; 5377 if (o == null || getClass() != o.getClass()) return false; 5378 5379 HandlerAction that = (HandlerAction) o; 5380 return !(action != null ? !action.equals(that.action) : that.action != null); 5381 5382 } 5383 5384 @Override 5385 public int hashCode() { 5386 int result = action != null ? action.hashCode() : 0; 5387 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5388 return result; 5389 } 5390 } 5391 } 5392 5393 /** 5394 * Class for managing the accessibility interaction connection 5395 * based on the global accessibility state. 5396 */ 5397 final class AccessibilityInteractionConnectionManager 5398 implements AccessibilityStateChangeListener { 5399 public void onAccessibilityStateChanged(boolean enabled) { 5400 if (enabled) { 5401 ensureConnection(); 5402 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5403 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5404 View focusedView = mView.findFocus(); 5405 if (focusedView != null && focusedView != mView) { 5406 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5407 } 5408 } 5409 } else { 5410 ensureNoConnection(); 5411 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5412 } 5413 } 5414 5415 public void ensureConnection() { 5416 if (mAttachInfo != null) { 5417 final boolean registered = 5418 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5419 if (!registered) { 5420 mAttachInfo.mAccessibilityWindowId = 5421 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5422 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5423 } 5424 } 5425 } 5426 5427 public void ensureNoConnection() { 5428 final boolean registered = 5429 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5430 if (registered) { 5431 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5432 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5433 } 5434 } 5435 } 5436 5437 /** 5438 * This class is an interface this ViewAncestor provides to the 5439 * AccessibilityManagerService to the latter can interact with 5440 * the view hierarchy in this ViewAncestor. 5441 */ 5442 static final class AccessibilityInteractionConnection 5443 extends IAccessibilityInteractionConnection.Stub { 5444 private final WeakReference<ViewRootImpl> mViewRootImpl; 5445 5446 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5447 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5448 } 5449 5450 @Override 5451 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5452 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5453 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5454 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5455 if (viewRootImpl != null && viewRootImpl.mView != null) { 5456 viewRootImpl.getAccessibilityInteractionController() 5457 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5458 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5459 spec); 5460 } else { 5461 // We cannot make the call and notify the caller so it does not wait. 5462 try { 5463 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5464 } catch (RemoteException re) { 5465 /* best effort - ignore */ 5466 } 5467 } 5468 } 5469 5470 @Override 5471 public void performAccessibilityAction(long accessibilityNodeId, int action, 5472 Bundle arguments, int interactionId, 5473 IAccessibilityInteractionConnectionCallback callback, int flags, 5474 int interogatingPid, long interrogatingTid) { 5475 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5476 if (viewRootImpl != null && viewRootImpl.mView != null) { 5477 viewRootImpl.getAccessibilityInteractionController() 5478 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5479 interactionId, callback, flags, interogatingPid, interrogatingTid); 5480 } else { 5481 // We cannot make the call and notify the caller so it does not wait. 5482 try { 5483 callback.setPerformAccessibilityActionResult(false, interactionId); 5484 } catch (RemoteException re) { 5485 /* best effort - ignore */ 5486 } 5487 } 5488 } 5489 5490 @Override 5491 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5492 String viewId, int interactionId, 5493 IAccessibilityInteractionConnectionCallback callback, int flags, 5494 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5495 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5496 if (viewRootImpl != null && viewRootImpl.mView != null) { 5497 viewRootImpl.getAccessibilityInteractionController() 5498 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5499 viewId, interactionId, callback, flags, interrogatingPid, 5500 interrogatingTid, spec); 5501 } else { 5502 // We cannot make the call and notify the caller so it does not wait. 5503 try { 5504 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5505 } catch (RemoteException re) { 5506 /* best effort - ignore */ 5507 } 5508 } 5509 } 5510 5511 @Override 5512 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5513 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5514 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5515 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5516 if (viewRootImpl != null && viewRootImpl.mView != null) { 5517 viewRootImpl.getAccessibilityInteractionController() 5518 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5519 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5520 spec); 5521 } else { 5522 // We cannot make the call and notify the caller so it does not wait. 5523 try { 5524 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5525 } catch (RemoteException re) { 5526 /* best effort - ignore */ 5527 } 5528 } 5529 } 5530 5531 @Override 5532 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5533 IAccessibilityInteractionConnectionCallback callback, int flags, 5534 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5535 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5536 if (viewRootImpl != null && viewRootImpl.mView != null) { 5537 viewRootImpl.getAccessibilityInteractionController() 5538 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5539 flags, interrogatingPid, interrogatingTid, spec); 5540 } else { 5541 // We cannot make the call and notify the caller so it does not wait. 5542 try { 5543 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5544 } catch (RemoteException re) { 5545 /* best effort - ignore */ 5546 } 5547 } 5548 } 5549 5550 @Override 5551 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5552 IAccessibilityInteractionConnectionCallback callback, int flags, 5553 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5554 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5555 if (viewRootImpl != null && viewRootImpl.mView != null) { 5556 viewRootImpl.getAccessibilityInteractionController() 5557 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5558 callback, flags, interrogatingPid, interrogatingTid, spec); 5559 } else { 5560 // We cannot make the call and notify the caller so it does not wait. 5561 try { 5562 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5563 } catch (RemoteException re) { 5564 /* best effort - ignore */ 5565 } 5566 } 5567 } 5568 } 5569 5570 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5571 public View mSource; 5572 5573 public void run() { 5574 if (mSource != null) { 5575 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5576 mSource.resetAccessibilityStateChanged(); 5577 mSource = null; 5578 } 5579 } 5580 } 5581} 5582