ViewRootImpl.java revision d075031944171139c1235bbc96c9533eaeeceb08
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 129 130 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 131 static boolean sFirstDrawComplete = false; 132 133 static final ArrayList<ComponentCallbacks> sConfigCallbacks 134 = new ArrayList<ComponentCallbacks>(); 135 136 private static boolean sUseRenderThread = false; 137 private static boolean sRenderThreadQueried = false; 138 private static final Object[] sRenderThreadQueryLock = new Object[0]; 139 140 final IWindowSession mWindowSession; 141 final Display mDisplay; 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 final SimulatedTrackball mSimulatedTrackball = new SimulatedTrackball(); 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 final int mTargetSdkVersion; 168 169 int mSeq; 170 171 View mView; 172 View mFocusedView; 173 View mRealFocusedView; // this is not set to null in touch mode 174 View mOldFocusedView; 175 176 View mAccessibilityFocusedHost; 177 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 178 179 int mViewVisibility; 180 boolean mAppVisible = true; 181 int mOrigWindowType = -1; 182 183 // Set to true if the owner of this window is in the stopped state, 184 // so the window should no longer be active. 185 boolean mStopped = false; 186 187 boolean mLastInCompatMode = false; 188 189 SurfaceHolder.Callback2 mSurfaceHolderCallback; 190 BaseSurfaceHolder mSurfaceHolder; 191 boolean mIsCreating; 192 boolean mDrawingAllowed; 193 194 final Region mTransparentRegion; 195 final Region mPreviousTransparentRegion; 196 197 int mWidth; 198 int mHeight; 199 Rect mDirty; 200 final Rect mCurrentDirty = new Rect(); 201 final Rect mPreviousDirty = new Rect(); 202 boolean mIsAnimating; 203 204 CompatibilityInfo.Translator mTranslator; 205 206 final View.AttachInfo mAttachInfo; 207 InputChannel mInputChannel; 208 InputQueue.Callback mInputQueueCallback; 209 InputQueue mInputQueue; 210 FallbackEventHandler mFallbackEventHandler; 211 Choreographer mChoreographer; 212 213 final Rect mTempRect; // used in the transaction to not thrash the heap. 214 final Rect mVisRect; // used to retrieve visible rect of focused view. 215 216 boolean mTraversalScheduled; 217 int mTraversalBarrier; 218 boolean mWillDrawSoon; 219 /** Set to true while in performTraversals for detecting when die(true) is called from internal 220 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 221 boolean mIsInTraversal; 222 boolean mFitSystemWindowsRequested; 223 boolean mLayoutRequested; 224 boolean mFirst; 225 boolean mReportNextDraw; 226 boolean mFullRedrawNeeded; 227 boolean mNewSurfaceNeeded; 228 boolean mHasHadWindowFocus; 229 boolean mLastWasImTarget; 230 boolean mWindowsAnimating; 231 boolean mIsDrawing; 232 int mLastSystemUiVisibility; 233 int mClientWindowLayoutFlags; 234 235 // Pool of queued input events. 236 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 237 private QueuedInputEvent mQueuedInputEventPool; 238 private int mQueuedInputEventPoolSize; 239 240 // Input event queue. 241 QueuedInputEvent mFirstPendingInputEvent; 242 QueuedInputEvent mCurrentInputEvent; 243 boolean mProcessInputEventsScheduled; 244 245 boolean mWindowAttributesChanged = false; 246 int mWindowAttributesChangesFlag = 0; 247 248 // These can be accessed by any thread, must be protected with a lock. 249 // Surface can never be reassigned or cleared (use Surface.clear()). 250 private final Surface mSurface = new Surface(); 251 252 boolean mAdded; 253 boolean mAddedTouchMode; 254 255 final CompatibilityInfoHolder mCompatibilityInfo; 256 257 // These are accessed by multiple threads. 258 final Rect mWinFrame; // frame given by window manager. 259 260 final Rect mPendingVisibleInsets = new Rect(); 261 final Rect mPendingContentInsets = new Rect(); 262 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 263 = new ViewTreeObserver.InternalInsetsInfo(); 264 265 final Rect mFitSystemWindowsInsets = new Rect(); 266 267 final Configuration mLastConfiguration = new Configuration(); 268 final Configuration mPendingConfiguration = new Configuration(); 269 270 boolean mScrollMayChange; 271 int mSoftInputMode; 272 View mLastScrolledFocus; 273 int mScrollY; 274 int mCurScrollY; 275 Scroller mScroller; 276 HardwareLayer mResizeBuffer; 277 long mResizeBufferStartTime; 278 int mResizeBufferDuration; 279 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 280 private ArrayList<LayoutTransition> mPendingTransitions; 281 282 final ViewConfiguration mViewConfiguration; 283 284 /* Drag/drop */ 285 ClipDescription mDragDescription; 286 View mCurrentDragView; 287 volatile Object mLocalDragState; 288 final PointF mDragPoint = new PointF(); 289 final PointF mLastTouchPoint = new PointF(); 290 291 private boolean mProfileRendering; 292 private Choreographer.FrameCallback mRenderProfiler; 293 private boolean mRenderProfilingEnabled; 294 295 // Variables to track frames per second, enabled via DEBUG_FPS flag 296 private long mFpsStartTime = -1; 297 private long mFpsPrevTime = -1; 298 private int mFpsNumFrames; 299 300 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 301 302 /** 303 * see {@link #playSoundEffect(int)} 304 */ 305 AudioManager mAudioManager; 306 307 final AccessibilityManager mAccessibilityManager; 308 309 AccessibilityInteractionController mAccessibilityInteractionController; 310 311 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 312 313 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 314 315 HashSet<View> mTempHashSet; 316 317 private final int mDensity; 318 private final int mNoncompatDensity; 319 320 private boolean mInLayout = false; 321 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 322 boolean mHandlingLayoutInLayoutRequest = false; 323 324 private int mViewLayoutDirectionInitial; 325 326 /** 327 * Consistency verifier for debugging purposes. 328 */ 329 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 330 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 331 new InputEventConsistencyVerifier(this, 0) : null; 332 333 static final class SystemUiVisibilityInfo { 334 int seq; 335 int globalVisibility; 336 int localValue; 337 int localChanges; 338 } 339 340 public ViewRootImpl(Context context, Display display) { 341 super(); 342 343 if (MEASURE_LATENCY) { 344 if (lt == null) { 345 lt = new LatencyTimer(100, 1000); 346 } 347 } 348 349 // Initialize the statics when this class is first instantiated. This is 350 // done here instead of in the static block because Zygote does not 351 // allow the spawning of threads. 352 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 353 mDisplay = display; 354 355 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 356 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 357 358 mThread = Thread.currentThread(); 359 mLocation = new WindowLeaked(null); 360 mLocation.fillInStackTrace(); 361 mWidth = -1; 362 mHeight = -1; 363 mDirty = new Rect(); 364 mTempRect = new Rect(); 365 mVisRect = new Rect(); 366 mWinFrame = new Rect(); 367 mWindow = new W(this); 368 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 369 mInputMethodCallback = new InputMethodCallback(this); 370 mViewVisibility = View.GONE; 371 mTransparentRegion = new Region(); 372 mPreviousTransparentRegion = new Region(); 373 mFirst = true; // true for the first time the view is added 374 mAdded = false; 375 mAccessibilityManager = AccessibilityManager.getInstance(context); 376 mAccessibilityInteractionConnectionManager = 377 new AccessibilityInteractionConnectionManager(); 378 mAccessibilityManager.addAccessibilityStateChangeListener( 379 mAccessibilityInteractionConnectionManager); 380 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 381 mViewConfiguration = ViewConfiguration.get(context); 382 mDensity = context.getResources().getDisplayMetrics().densityDpi; 383 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 384 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 385 mProfileRendering = Boolean.parseBoolean( 386 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 387 mChoreographer = Choreographer.getInstance(); 388 389 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 390 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 391 loadSystemProperties(); 392 } 393 394 /** 395 * @return True if the application requests the use of a separate render thread, 396 * false otherwise 397 */ 398 private static boolean isRenderThreadRequested(Context context) { 399 if (USE_RENDER_THREAD) { 400 synchronized (sRenderThreadQueryLock) { 401 if (!sRenderThreadQueried) { 402 final PackageManager packageManager = context.getPackageManager(); 403 final String packageName = context.getApplicationInfo().packageName; 404 try { 405 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 406 PackageManager.GET_META_DATA); 407 if (applicationInfo.metaData != null) { 408 sUseRenderThread = applicationInfo.metaData.getBoolean( 409 "android.graphics.renderThread", false); 410 } 411 } catch (PackageManager.NameNotFoundException e) { 412 } finally { 413 sRenderThreadQueried = true; 414 } 415 } 416 return sUseRenderThread; 417 } 418 } else { 419 return false; 420 } 421 } 422 423 public static void addFirstDrawHandler(Runnable callback) { 424 synchronized (sFirstDrawHandlers) { 425 if (!sFirstDrawComplete) { 426 sFirstDrawHandlers.add(callback); 427 } 428 } 429 } 430 431 public static void addConfigCallback(ComponentCallbacks callback) { 432 synchronized (sConfigCallbacks) { 433 sConfigCallbacks.add(callback); 434 } 435 } 436 437 // FIXME for perf testing only 438 private boolean mProfile = false; 439 440 /** 441 * Call this to profile the next traversal call. 442 * FIXME for perf testing only. Remove eventually 443 */ 444 public void profile() { 445 mProfile = true; 446 } 447 448 /** 449 * Indicates whether we are in touch mode. Calling this method triggers an IPC 450 * call and should be avoided whenever possible. 451 * 452 * @return True, if the device is in touch mode, false otherwise. 453 * 454 * @hide 455 */ 456 static boolean isInTouchMode() { 457 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 458 if (windowSession != null) { 459 try { 460 return windowSession.getInTouchMode(); 461 } catch (RemoteException e) { 462 } 463 } 464 return false; 465 } 466 467 /** 468 * We have one child 469 */ 470 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 471 synchronized (this) { 472 if (mView == null) { 473 mView = view; 474 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 475 mFallbackEventHandler.setView(view); 476 mWindowAttributes.copyFrom(attrs); 477 attrs = mWindowAttributes; 478 // Keep track of the actual window flags supplied by the client. 479 mClientWindowLayoutFlags = attrs.flags; 480 481 setAccessibilityFocus(null, null); 482 483 if (view instanceof RootViewSurfaceTaker) { 484 mSurfaceHolderCallback = 485 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 486 if (mSurfaceHolderCallback != null) { 487 mSurfaceHolder = new TakenSurfaceHolder(); 488 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 489 } 490 } 491 492 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 493 mTranslator = compatibilityInfo.getTranslator(); 494 495 // If the application owns the surface, don't enable hardware acceleration 496 if (mSurfaceHolder == null) { 497 enableHardwareAcceleration(mView.getContext(), attrs); 498 } 499 500 boolean restore = false; 501 if (mTranslator != null) { 502 mSurface.setCompatibilityTranslator(mTranslator); 503 restore = true; 504 attrs.backup(); 505 mTranslator.translateWindowLayout(attrs); 506 } 507 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 508 509 if (!compatibilityInfo.supportsScreen()) { 510 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 511 mLastInCompatMode = true; 512 } 513 514 mSoftInputMode = attrs.softInputMode; 515 mWindowAttributesChanged = true; 516 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 517 mAttachInfo.mRootView = view; 518 mAttachInfo.mScalingRequired = mTranslator != null; 519 mAttachInfo.mApplicationScale = 520 mTranslator == null ? 1.0f : mTranslator.applicationScale; 521 if (panelParentView != null) { 522 mAttachInfo.mPanelParentWindowToken 523 = panelParentView.getApplicationWindowToken(); 524 } 525 mAdded = true; 526 int res; /* = WindowManagerImpl.ADD_OKAY; */ 527 528 // Schedule the first layout -before- adding to the window 529 // manager, to make sure we do the relayout before receiving 530 // any other events from the system. 531 requestLayout(); 532 if ((mWindowAttributes.inputFeatures 533 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 534 mInputChannel = new InputChannel(); 535 } 536 try { 537 mOrigWindowType = mWindowAttributes.type; 538 mAttachInfo.mRecomputeGlobalAttributes = true; 539 collectViewAttributes(); 540 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 541 getHostVisibility(), mDisplay.getDisplayId(), 542 mAttachInfo.mContentInsets, mInputChannel); 543 } catch (RemoteException e) { 544 mAdded = false; 545 mView = null; 546 mAttachInfo.mRootView = null; 547 mInputChannel = null; 548 mFallbackEventHandler.setView(null); 549 unscheduleTraversals(); 550 setAccessibilityFocus(null, null); 551 throw new RuntimeException("Adding window failed", e); 552 } finally { 553 if (restore) { 554 attrs.restore(); 555 } 556 } 557 558 if (mTranslator != null) { 559 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 560 } 561 mPendingContentInsets.set(mAttachInfo.mContentInsets); 562 mPendingVisibleInsets.set(0, 0, 0, 0); 563 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 564 if (res < WindowManagerGlobal.ADD_OKAY) { 565 mAttachInfo.mRootView = null; 566 mAdded = false; 567 mFallbackEventHandler.setView(null); 568 unscheduleTraversals(); 569 setAccessibilityFocus(null, null); 570 switch (res) { 571 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 572 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 573 throw new WindowManager.BadTokenException( 574 "Unable to add window -- token " + attrs.token 575 + " is not valid; is your activity running?"); 576 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 577 throw new WindowManager.BadTokenException( 578 "Unable to add window -- token " + attrs.token 579 + " is not for an application"); 580 case WindowManagerGlobal.ADD_APP_EXITING: 581 throw new WindowManager.BadTokenException( 582 "Unable to add window -- app for token " + attrs.token 583 + " is exiting"); 584 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 585 throw new WindowManager.BadTokenException( 586 "Unable to add window -- window " + mWindow 587 + " has already been added"); 588 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 589 // Silently ignore -- we would have just removed it 590 // right away, anyway. 591 return; 592 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 593 throw new WindowManager.BadTokenException( 594 "Unable to add window " + mWindow + 595 " -- another window of this type already exists"); 596 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 597 throw new WindowManager.BadTokenException( 598 "Unable to add window " + mWindow + 599 " -- permission denied for this window type"); 600 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 601 throw new WindowManager.InvalidDisplayException( 602 "Unable to add window " + mWindow + 603 " -- the specified display can not be found"); 604 } 605 throw new RuntimeException( 606 "Unable to add window -- unknown error code " + res); 607 } 608 609 if (view instanceof RootViewSurfaceTaker) { 610 mInputQueueCallback = 611 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 612 } 613 if (mInputChannel != null) { 614 if (mInputQueueCallback != null) { 615 mInputQueue = new InputQueue(mInputChannel); 616 mInputQueueCallback.onInputQueueCreated(mInputQueue); 617 } else { 618 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 619 Looper.myLooper()); 620 } 621 } 622 623 view.assignParent(this); 624 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 625 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 626 627 if (mAccessibilityManager.isEnabled()) { 628 mAccessibilityInteractionConnectionManager.ensureConnection(); 629 } 630 631 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 632 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 633 } 634 } 635 } 636 } 637 638 void destroyHardwareResources() { 639 if (mAttachInfo.mHardwareRenderer != null) { 640 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 641 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 642 } 643 mAttachInfo.mHardwareRenderer.destroy(false); 644 } 645 } 646 647 void terminateHardwareResources() { 648 if (mAttachInfo.mHardwareRenderer != null) { 649 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 650 mAttachInfo.mHardwareRenderer.destroy(false); 651 } 652 } 653 654 void destroyHardwareLayers() { 655 if (mThread != Thread.currentThread()) { 656 if (mAttachInfo.mHardwareRenderer != null && 657 mAttachInfo.mHardwareRenderer.isEnabled()) { 658 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 659 } 660 } else { 661 if (mAttachInfo.mHardwareRenderer != null && 662 mAttachInfo.mHardwareRenderer.isEnabled()) { 663 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 664 } 665 } 666 } 667 668 void pushHardwareLayerUpdate(HardwareLayer layer) { 669 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 670 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 671 } 672 } 673 674 public boolean attachFunctor(int functor) { 675 //noinspection SimplifiableIfStatement 676 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 677 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 678 } 679 return false; 680 } 681 682 public void detachFunctor(int functor) { 683 if (mAttachInfo.mHardwareRenderer != null) { 684 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 685 } 686 } 687 688 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 689 mAttachInfo.mHardwareAccelerated = false; 690 mAttachInfo.mHardwareAccelerationRequested = false; 691 692 // Don't enable hardware acceleration when the application is in compatibility mode 693 if (mTranslator != null) return; 694 695 // Try to enable hardware acceleration if requested 696 final boolean hardwareAccelerated = 697 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 698 699 if (hardwareAccelerated) { 700 if (!HardwareRenderer.isAvailable()) { 701 return; 702 } 703 704 // Persistent processes (including the system) should not do 705 // accelerated rendering on low-end devices. In that case, 706 // sRendererDisabled will be set. In addition, the system process 707 // itself should never do accelerated rendering. In that case, both 708 // sRendererDisabled and sSystemRendererDisabled are set. When 709 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 710 // can be used by code on the system process to escape that and enable 711 // HW accelerated drawing. (This is basically for the lock screen.) 712 713 final boolean fakeHwAccelerated = (attrs.privateFlags & 714 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 715 final boolean forceHwAccelerated = (attrs.privateFlags & 716 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 717 718 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 719 && forceHwAccelerated)) { 720 // Don't enable hardware acceleration when we're not on the main thread 721 if (!HardwareRenderer.sSystemRendererDisabled && 722 Looper.getMainLooper() != Looper.myLooper()) { 723 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 724 + "acceleration outside of the main thread, aborting"); 725 return; 726 } 727 728 final boolean renderThread = isRenderThreadRequested(context); 729 if (renderThread) { 730 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 731 } 732 733 if (mAttachInfo.mHardwareRenderer != null) { 734 mAttachInfo.mHardwareRenderer.destroy(true); 735 } 736 737 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 738 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 739 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 740 = mAttachInfo.mHardwareRenderer != null; 741 742 } else if (fakeHwAccelerated) { 743 // The window had wanted to use hardware acceleration, but this 744 // is not allowed in its process. By setting this flag, it can 745 // still render as if it was accelerated. This is basically for 746 // the preview windows the window manager shows for launching 747 // applications, so they will look more like the app being launched. 748 mAttachInfo.mHardwareAccelerationRequested = true; 749 } 750 } 751 } 752 753 public View getView() { 754 return mView; 755 } 756 757 final WindowLeaked getLocation() { 758 return mLocation; 759 } 760 761 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 762 synchronized (this) { 763 int oldSoftInputMode = mWindowAttributes.softInputMode; 764 // Keep track of the actual window flags supplied by the client. 765 mClientWindowLayoutFlags = attrs.flags; 766 // preserve compatible window flag if exists. 767 int compatibleWindowFlag = 768 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 769 // transfer over system UI visibility values as they carry current state. 770 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 771 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 772 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 773 mWindowAttributes.flags |= compatibleWindowFlag; 774 775 applyKeepScreenOnFlag(mWindowAttributes); 776 777 if (newView) { 778 mSoftInputMode = attrs.softInputMode; 779 requestLayout(); 780 } 781 // Don't lose the mode we last auto-computed. 782 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 783 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 784 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 785 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 786 | (oldSoftInputMode 787 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 788 } 789 mWindowAttributesChanged = true; 790 scheduleTraversals(); 791 } 792 } 793 794 void handleAppVisibility(boolean visible) { 795 if (mAppVisible != visible) { 796 mAppVisible = visible; 797 scheduleTraversals(); 798 } 799 } 800 801 void handleGetNewSurface() { 802 mNewSurfaceNeeded = true; 803 mFullRedrawNeeded = true; 804 scheduleTraversals(); 805 } 806 807 void handleScreenStateChange(boolean on) { 808 if (on != mAttachInfo.mScreenOn) { 809 mAttachInfo.mScreenOn = on; 810 if (mView != null) { 811 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 812 } 813 if (on) { 814 mFullRedrawNeeded = true; 815 scheduleTraversals(); 816 } 817 } 818 } 819 820 @Override 821 public void requestFitSystemWindows() { 822 checkThread(); 823 mFitSystemWindowsRequested = true; 824 scheduleTraversals(); 825 } 826 827 @Override 828 public void requestLayout() { 829 checkThread(); 830 mLayoutRequested = true; 831 scheduleTraversals(); 832 } 833 834 @Override 835 public boolean isLayoutRequested() { 836 return mLayoutRequested; 837 } 838 839 void invalidate() { 840 mDirty.set(0, 0, mWidth, mHeight); 841 scheduleTraversals(); 842 } 843 844 void invalidateWorld(View view) { 845 view.invalidate(); 846 if (view instanceof ViewGroup) { 847 ViewGroup parent = (ViewGroup) view; 848 for (int i = 0; i < parent.getChildCount(); i++) { 849 invalidateWorld(parent.getChildAt(i)); 850 } 851 } 852 } 853 854 @Override 855 public void invalidateChild(View child, Rect dirty) { 856 invalidateChildInParent(null, dirty); 857 } 858 859 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 860 checkThread(); 861 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 862 863 if (dirty == null) { 864 invalidate(); 865 return null; 866 } else if (dirty.isEmpty() && !mIsAnimating) { 867 return null; 868 } 869 870 if (mCurScrollY != 0 || mTranslator != null) { 871 mTempRect.set(dirty); 872 dirty = mTempRect; 873 if (mCurScrollY != 0) { 874 dirty.offset(0, -mCurScrollY); 875 } 876 if (mTranslator != null) { 877 mTranslator.translateRectInAppWindowToScreen(dirty); 878 } 879 if (mAttachInfo.mScalingRequired) { 880 dirty.inset(-1, -1); 881 } 882 } 883 884 final Rect localDirty = mDirty; 885 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 886 mAttachInfo.mSetIgnoreDirtyState = true; 887 mAttachInfo.mIgnoreDirtyState = true; 888 } 889 890 // Add the new dirty rect to the current one 891 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 892 // Intersect with the bounds of the window to skip 893 // updates that lie outside of the visible region 894 final float appScale = mAttachInfo.mApplicationScale; 895 final boolean intersected = localDirty.intersect(0, 0, 896 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 897 if (!intersected) { 898 localDirty.setEmpty(); 899 } 900 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 901 scheduleTraversals(); 902 } 903 904 return null; 905 } 906 907 void setStopped(boolean stopped) { 908 if (mStopped != stopped) { 909 mStopped = stopped; 910 if (!stopped) { 911 scheduleTraversals(); 912 } 913 } 914 } 915 916 public ViewParent getParent() { 917 return null; 918 } 919 920 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 921 if (child != mView) { 922 throw new RuntimeException("child is not mine, honest!"); 923 } 924 // Note: don't apply scroll offset, because we want to know its 925 // visibility in the virtual canvas being given to the view hierarchy. 926 return r.intersect(0, 0, mWidth, mHeight); 927 } 928 929 public void bringChildToFront(View child) { 930 } 931 932 int getHostVisibility() { 933 return mAppVisible ? mView.getVisibility() : View.GONE; 934 } 935 936 void disposeResizeBuffer() { 937 if (mResizeBuffer != null) { 938 mResizeBuffer.destroy(); 939 mResizeBuffer = null; 940 } 941 } 942 943 /** 944 * Add LayoutTransition to the list of transitions to be started in the next traversal. 945 * This list will be cleared after the transitions on the list are start()'ed. These 946 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 947 * happens during the layout phase of traversal, which we want to complete before any of the 948 * animations are started (because those animations may side-effect properties that layout 949 * depends upon, like the bounding rectangles of the affected views). So we add the transition 950 * to the list and it is started just prior to starting the drawing phase of traversal. 951 * 952 * @param transition The LayoutTransition to be started on the next traversal. 953 * 954 * @hide 955 */ 956 public void requestTransitionStart(LayoutTransition transition) { 957 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 958 if (mPendingTransitions == null) { 959 mPendingTransitions = new ArrayList<LayoutTransition>(); 960 } 961 mPendingTransitions.add(transition); 962 } 963 } 964 965 void scheduleTraversals() { 966 if (!mTraversalScheduled) { 967 mTraversalScheduled = true; 968 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 969 mChoreographer.postCallback( 970 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 971 scheduleConsumeBatchedInput(); 972 } 973 } 974 975 void unscheduleTraversals() { 976 if (mTraversalScheduled) { 977 mTraversalScheduled = false; 978 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 979 mChoreographer.removeCallbacks( 980 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 981 } 982 } 983 984 void doTraversal() { 985 if (mTraversalScheduled) { 986 mTraversalScheduled = false; 987 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 988 989 if (mProfile) { 990 Debug.startMethodTracing("ViewAncestor"); 991 } 992 993 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 994 try { 995 performTraversals(); 996 } finally { 997 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 998 } 999 1000 if (mProfile) { 1001 Debug.stopMethodTracing(); 1002 mProfile = false; 1003 } 1004 } 1005 } 1006 1007 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1008 // Update window's global keep screen on flag: if a view has requested 1009 // that the screen be kept on, then it is always set; otherwise, it is 1010 // set to whatever the client last requested for the global state. 1011 if (mAttachInfo.mKeepScreenOn) { 1012 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1013 } else { 1014 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1015 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1016 } 1017 } 1018 1019 private boolean collectViewAttributes() { 1020 final View.AttachInfo attachInfo = mAttachInfo; 1021 if (attachInfo.mRecomputeGlobalAttributes) { 1022 //Log.i(TAG, "Computing view hierarchy attributes!"); 1023 attachInfo.mRecomputeGlobalAttributes = false; 1024 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1025 attachInfo.mKeepScreenOn = false; 1026 attachInfo.mSystemUiVisibility = 0; 1027 attachInfo.mHasSystemUiListeners = false; 1028 mView.dispatchCollectViewAttributes(attachInfo, 0); 1029 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1030 WindowManager.LayoutParams params = mWindowAttributes; 1031 if (attachInfo.mKeepScreenOn != oldScreenOn 1032 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1033 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1034 applyKeepScreenOnFlag(params); 1035 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1036 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1037 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1038 return true; 1039 } 1040 } 1041 return false; 1042 } 1043 1044 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1045 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1046 int childWidthMeasureSpec; 1047 int childHeightMeasureSpec; 1048 boolean windowSizeMayChange = false; 1049 1050 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1051 "Measuring " + host + " in display " + desiredWindowWidth 1052 + "x" + desiredWindowHeight + "..."); 1053 1054 boolean goodMeasure = false; 1055 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1056 // On large screens, we don't want to allow dialogs to just 1057 // stretch to fill the entire width of the screen to display 1058 // one line of text. First try doing the layout at a smaller 1059 // size to see if it will fit. 1060 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1061 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1062 int baseSize = 0; 1063 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1064 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1065 } 1066 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1067 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1068 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1069 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1070 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1071 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1072 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1073 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1074 goodMeasure = true; 1075 } else { 1076 // Didn't fit in that size... try expanding a bit. 1077 baseSize = (baseSize+desiredWindowWidth)/2; 1078 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1079 + baseSize); 1080 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1081 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1082 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1083 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1084 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1085 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1086 goodMeasure = true; 1087 } 1088 } 1089 } 1090 } 1091 1092 if (!goodMeasure) { 1093 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1094 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1095 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1096 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1097 windowSizeMayChange = true; 1098 } 1099 } 1100 1101 if (DBG) { 1102 System.out.println("======================================"); 1103 System.out.println("performTraversals -- after measure"); 1104 host.debug(); 1105 } 1106 1107 return windowSizeMayChange; 1108 } 1109 1110 private void performTraversals() { 1111 // cache mView since it is used so much below... 1112 final View host = mView; 1113 1114 if (DBG) { 1115 System.out.println("======================================"); 1116 System.out.println("performTraversals"); 1117 host.debug(); 1118 } 1119 1120 if (host == null || !mAdded) 1121 return; 1122 1123 mIsInTraversal = true; 1124 mWillDrawSoon = true; 1125 boolean windowSizeMayChange = false; 1126 boolean newSurface = false; 1127 boolean surfaceChanged = false; 1128 WindowManager.LayoutParams lp = mWindowAttributes; 1129 1130 int desiredWindowWidth; 1131 int desiredWindowHeight; 1132 1133 final View.AttachInfo attachInfo = mAttachInfo; 1134 1135 final int viewVisibility = getHostVisibility(); 1136 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1137 || mNewSurfaceNeeded; 1138 1139 WindowManager.LayoutParams params = null; 1140 if (mWindowAttributesChanged) { 1141 mWindowAttributesChanged = false; 1142 surfaceChanged = true; 1143 params = lp; 1144 } 1145 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1146 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1147 params = lp; 1148 mFullRedrawNeeded = true; 1149 mLayoutRequested = true; 1150 if (mLastInCompatMode) { 1151 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1152 mLastInCompatMode = false; 1153 } else { 1154 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1155 mLastInCompatMode = true; 1156 } 1157 } 1158 1159 mWindowAttributesChangesFlag = 0; 1160 1161 Rect frame = mWinFrame; 1162 if (mFirst) { 1163 mFullRedrawNeeded = true; 1164 mLayoutRequested = true; 1165 1166 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1167 // NOTE -- system code, won't try to do compat mode. 1168 Point size = new Point(); 1169 mDisplay.getRealSize(size); 1170 desiredWindowWidth = size.x; 1171 desiredWindowHeight = size.y; 1172 } else { 1173 DisplayMetrics packageMetrics = 1174 mView.getContext().getResources().getDisplayMetrics(); 1175 desiredWindowWidth = packageMetrics.widthPixels; 1176 desiredWindowHeight = packageMetrics.heightPixels; 1177 } 1178 1179 // For the very first time, tell the view hierarchy that it 1180 // is attached to the window. Note that at this point the surface 1181 // object is not initialized to its backing store, but soon it 1182 // will be (assuming the window is visible). 1183 attachInfo.mSurface = mSurface; 1184 // We used to use the following condition to choose 32 bits drawing caches: 1185 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1186 // However, windows are now always 32 bits by default, so choose 32 bits 1187 attachInfo.mUse32BitDrawingCache = true; 1188 attachInfo.mHasWindowFocus = false; 1189 attachInfo.mWindowVisibility = viewVisibility; 1190 attachInfo.mRecomputeGlobalAttributes = false; 1191 viewVisibilityChanged = false; 1192 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1193 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1194 // Set the layout direction if it has not been set before (inherit is the default) 1195 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1196 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1197 } 1198 host.dispatchAttachedToWindow(attachInfo, 0); 1199 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1200 host.fitSystemWindows(mFitSystemWindowsInsets); 1201 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1202 1203 } else { 1204 desiredWindowWidth = frame.width(); 1205 desiredWindowHeight = frame.height(); 1206 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1207 if (DEBUG_ORIENTATION) Log.v(TAG, 1208 "View " + host + " resized to: " + frame); 1209 mFullRedrawNeeded = true; 1210 mLayoutRequested = true; 1211 windowSizeMayChange = true; 1212 } 1213 } 1214 1215 if (viewVisibilityChanged) { 1216 attachInfo.mWindowVisibility = viewVisibility; 1217 host.dispatchWindowVisibilityChanged(viewVisibility); 1218 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1219 destroyHardwareResources(); 1220 } 1221 if (viewVisibility == View.GONE) { 1222 // After making a window gone, we will count it as being 1223 // shown for the first time the next time it gets focus. 1224 mHasHadWindowFocus = false; 1225 } 1226 } 1227 1228 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1229 getRunQueue().executeActions(attachInfo.mHandler); 1230 1231 boolean insetsChanged = false; 1232 1233 boolean layoutRequested = mLayoutRequested && !mStopped; 1234 if (layoutRequested) { 1235 1236 final Resources res = mView.getContext().getResources(); 1237 1238 if (mFirst) { 1239 // make sure touch mode code executes by setting cached value 1240 // to opposite of the added touch mode. 1241 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1242 ensureTouchModeLocally(mAddedTouchMode); 1243 } else { 1244 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1245 insetsChanged = true; 1246 } 1247 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1248 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1249 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1250 + mAttachInfo.mVisibleInsets); 1251 } 1252 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1253 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1254 windowSizeMayChange = true; 1255 1256 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1257 // NOTE -- system code, won't try to do compat mode. 1258 Point size = new Point(); 1259 mDisplay.getRealSize(size); 1260 desiredWindowWidth = size.x; 1261 desiredWindowHeight = size.y; 1262 } else { 1263 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1264 desiredWindowWidth = packageMetrics.widthPixels; 1265 desiredWindowHeight = packageMetrics.heightPixels; 1266 } 1267 } 1268 } 1269 1270 // Ask host how big it wants to be 1271 windowSizeMayChange |= measureHierarchy(host, lp, res, 1272 desiredWindowWidth, desiredWindowHeight); 1273 } 1274 1275 if (collectViewAttributes()) { 1276 params = lp; 1277 } 1278 if (attachInfo.mForceReportNewAttributes) { 1279 attachInfo.mForceReportNewAttributes = false; 1280 params = lp; 1281 } 1282 1283 if (mFirst || attachInfo.mViewVisibilityChanged) { 1284 attachInfo.mViewVisibilityChanged = false; 1285 int resizeMode = mSoftInputMode & 1286 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1287 // If we are in auto resize mode, then we need to determine 1288 // what mode to use now. 1289 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1290 final int N = attachInfo.mScrollContainers.size(); 1291 for (int i=0; i<N; i++) { 1292 if (attachInfo.mScrollContainers.get(i).isShown()) { 1293 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1294 } 1295 } 1296 if (resizeMode == 0) { 1297 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1298 } 1299 if ((lp.softInputMode & 1300 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1301 lp.softInputMode = (lp.softInputMode & 1302 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1303 resizeMode; 1304 params = lp; 1305 } 1306 } 1307 } 1308 1309 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1310 if (!PixelFormat.formatHasAlpha(params.format)) { 1311 params.format = PixelFormat.TRANSLUCENT; 1312 } 1313 } 1314 1315 if (mFitSystemWindowsRequested) { 1316 mFitSystemWindowsRequested = false; 1317 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1318 host.fitSystemWindows(mFitSystemWindowsInsets); 1319 if (mLayoutRequested) { 1320 // Short-circuit catching a new layout request here, so 1321 // we don't need to go through two layout passes when things 1322 // change due to fitting system windows, which can happen a lot. 1323 windowSizeMayChange |= measureHierarchy(host, lp, 1324 mView.getContext().getResources(), 1325 desiredWindowWidth, desiredWindowHeight); 1326 } 1327 } 1328 1329 if (layoutRequested) { 1330 // Clear this now, so that if anything requests a layout in the 1331 // rest of this function we will catch it and re-run a full 1332 // layout pass. 1333 mLayoutRequested = false; 1334 } 1335 1336 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1337 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1338 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1339 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1340 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1341 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1342 1343 final boolean computesInternalInsets = 1344 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1345 1346 boolean insetsPending = false; 1347 int relayoutResult = 0; 1348 1349 if (mFirst || windowShouldResize || insetsChanged || 1350 viewVisibilityChanged || params != null) { 1351 1352 if (viewVisibility == View.VISIBLE) { 1353 // If this window is giving internal insets to the window 1354 // manager, and it is being added or changing its visibility, 1355 // then we want to first give the window manager "fake" 1356 // insets to cause it to effectively ignore the content of 1357 // the window during layout. This avoids it briefly causing 1358 // other windows to resize/move based on the raw frame of the 1359 // window, waiting until we can finish laying out this window 1360 // and get back to the window manager with the ultimately 1361 // computed insets. 1362 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1363 } 1364 1365 if (mSurfaceHolder != null) { 1366 mSurfaceHolder.mSurfaceLock.lock(); 1367 mDrawingAllowed = true; 1368 } 1369 1370 boolean hwInitialized = false; 1371 boolean contentInsetsChanged = false; 1372 boolean visibleInsetsChanged; 1373 boolean hadSurface = mSurface.isValid(); 1374 1375 try { 1376 if (DEBUG_LAYOUT) { 1377 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1378 host.getMeasuredHeight() + ", params=" + params); 1379 } 1380 1381 final int surfaceGenerationId = mSurface.getGenerationId(); 1382 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1383 1384 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1385 + " content=" + mPendingContentInsets.toShortString() 1386 + " visible=" + mPendingVisibleInsets.toShortString() 1387 + " surface=" + mSurface); 1388 1389 if (mPendingConfiguration.seq != 0) { 1390 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1391 + mPendingConfiguration); 1392 updateConfiguration(mPendingConfiguration, !mFirst); 1393 mPendingConfiguration.seq = 0; 1394 } 1395 1396 contentInsetsChanged = !mPendingContentInsets.equals( 1397 mAttachInfo.mContentInsets); 1398 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1399 mAttachInfo.mVisibleInsets); 1400 if (contentInsetsChanged) { 1401 if (mWidth > 0 && mHeight > 0 && lp != null && 1402 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1403 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1404 mSurface != null && mSurface.isValid() && 1405 !mAttachInfo.mTurnOffWindowResizeAnim && 1406 mAttachInfo.mHardwareRenderer != null && 1407 mAttachInfo.mHardwareRenderer.isEnabled() && 1408 mAttachInfo.mHardwareRenderer.validate() && 1409 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1410 1411 disposeResizeBuffer(); 1412 1413 boolean completed = false; 1414 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1415 HardwareCanvas layerCanvas = null; 1416 try { 1417 if (mResizeBuffer == null) { 1418 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1419 mWidth, mHeight, false); 1420 } else if (mResizeBuffer.getWidth() != mWidth || 1421 mResizeBuffer.getHeight() != mHeight) { 1422 mResizeBuffer.resize(mWidth, mHeight); 1423 } 1424 // TODO: should handle create/resize failure 1425 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1426 layerCanvas.setViewport(mWidth, mHeight); 1427 layerCanvas.onPreDraw(null); 1428 final int restoreCount = layerCanvas.save(); 1429 1430 int yoff; 1431 final boolean scrolling = mScroller != null 1432 && mScroller.computeScrollOffset(); 1433 if (scrolling) { 1434 yoff = mScroller.getCurrY(); 1435 mScroller.abortAnimation(); 1436 } else { 1437 yoff = mScrollY; 1438 } 1439 1440 layerCanvas.translate(0, -yoff); 1441 if (mTranslator != null) { 1442 mTranslator.translateCanvas(layerCanvas); 1443 } 1444 1445 DisplayList displayList = mView.mDisplayList; 1446 if (displayList != null) { 1447 layerCanvas.drawDisplayList(displayList, null, 1448 DisplayList.FLAG_CLIP_CHILDREN); 1449 } else { 1450 mView.draw(layerCanvas); 1451 } 1452 1453 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1454 1455 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1456 mResizeBufferDuration = mView.getResources().getInteger( 1457 com.android.internal.R.integer.config_mediumAnimTime); 1458 completed = true; 1459 1460 layerCanvas.restoreToCount(restoreCount); 1461 } catch (OutOfMemoryError e) { 1462 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1463 } finally { 1464 if (layerCanvas != null) { 1465 layerCanvas.onPostDraw(); 1466 } 1467 if (mResizeBuffer != null) { 1468 mResizeBuffer.end(hwRendererCanvas); 1469 if (!completed) { 1470 mResizeBuffer.destroy(); 1471 mResizeBuffer = null; 1472 } 1473 } 1474 } 1475 } 1476 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1477 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1478 + mAttachInfo.mContentInsets); 1479 } 1480 if (contentInsetsChanged || mLastSystemUiVisibility != 1481 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1482 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1483 mFitSystemWindowsRequested = false; 1484 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1485 host.fitSystemWindows(mFitSystemWindowsInsets); 1486 } 1487 if (visibleInsetsChanged) { 1488 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1489 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1490 + mAttachInfo.mVisibleInsets); 1491 } 1492 1493 if (!hadSurface) { 1494 if (mSurface.isValid()) { 1495 // If we are creating a new surface, then we need to 1496 // completely redraw it. Also, when we get to the 1497 // point of drawing it we will hold off and schedule 1498 // a new traversal instead. This is so we can tell the 1499 // window manager about all of the windows being displayed 1500 // before actually drawing them, so it can display then 1501 // all at once. 1502 newSurface = true; 1503 mFullRedrawNeeded = true; 1504 mPreviousTransparentRegion.setEmpty(); 1505 1506 if (mAttachInfo.mHardwareRenderer != null) { 1507 try { 1508 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1509 mHolder.getSurface()); 1510 } catch (Surface.OutOfResourcesException e) { 1511 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1512 try { 1513 if (!mWindowSession.outOfMemory(mWindow) && 1514 Process.myUid() != Process.SYSTEM_UID) { 1515 Slog.w(TAG, "No processes killed for memory; killing self"); 1516 Process.killProcess(Process.myPid()); 1517 } 1518 } catch (RemoteException ex) { 1519 } 1520 mLayoutRequested = true; // ask wm for a new surface next time. 1521 return; 1522 } 1523 } 1524 } 1525 } else if (!mSurface.isValid()) { 1526 // If the surface has been removed, then reset the scroll 1527 // positions. 1528 mLastScrolledFocus = null; 1529 mScrollY = mCurScrollY = 0; 1530 if (mScroller != null) { 1531 mScroller.abortAnimation(); 1532 } 1533 disposeResizeBuffer(); 1534 // Our surface is gone 1535 if (mAttachInfo.mHardwareRenderer != null && 1536 mAttachInfo.mHardwareRenderer.isEnabled()) { 1537 mAttachInfo.mHardwareRenderer.destroy(true); 1538 } 1539 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1540 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1541 mFullRedrawNeeded = true; 1542 try { 1543 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1544 } catch (Surface.OutOfResourcesException e) { 1545 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1546 try { 1547 if (!mWindowSession.outOfMemory(mWindow)) { 1548 Slog.w(TAG, "No processes killed for memory; killing self"); 1549 Process.killProcess(Process.myPid()); 1550 } 1551 } catch (RemoteException ex) { 1552 } 1553 mLayoutRequested = true; // ask wm for a new surface next time. 1554 return; 1555 } 1556 } 1557 } catch (RemoteException e) { 1558 } 1559 1560 if (DEBUG_ORIENTATION) Log.v( 1561 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1562 1563 attachInfo.mWindowLeft = frame.left; 1564 attachInfo.mWindowTop = frame.top; 1565 1566 // !!FIXME!! This next section handles the case where we did not get the 1567 // window size we asked for. We should avoid this by getting a maximum size from 1568 // the window session beforehand. 1569 if (mWidth != frame.width() || mHeight != frame.height()) { 1570 mWidth = frame.width(); 1571 mHeight = frame.height(); 1572 } 1573 1574 if (mSurfaceHolder != null) { 1575 // The app owns the surface; tell it about what is going on. 1576 if (mSurface.isValid()) { 1577 // XXX .copyFrom() doesn't work! 1578 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1579 mSurfaceHolder.mSurface = mSurface; 1580 } 1581 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1582 mSurfaceHolder.mSurfaceLock.unlock(); 1583 if (mSurface.isValid()) { 1584 if (!hadSurface) { 1585 mSurfaceHolder.ungetCallbacks(); 1586 1587 mIsCreating = true; 1588 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1589 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1590 if (callbacks != null) { 1591 for (SurfaceHolder.Callback c : callbacks) { 1592 c.surfaceCreated(mSurfaceHolder); 1593 } 1594 } 1595 surfaceChanged = true; 1596 } 1597 if (surfaceChanged) { 1598 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1599 lp.format, mWidth, mHeight); 1600 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1601 if (callbacks != null) { 1602 for (SurfaceHolder.Callback c : callbacks) { 1603 c.surfaceChanged(mSurfaceHolder, lp.format, 1604 mWidth, mHeight); 1605 } 1606 } 1607 } 1608 mIsCreating = false; 1609 } else if (hadSurface) { 1610 mSurfaceHolder.ungetCallbacks(); 1611 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1612 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1613 if (callbacks != null) { 1614 for (SurfaceHolder.Callback c : callbacks) { 1615 c.surfaceDestroyed(mSurfaceHolder); 1616 } 1617 } 1618 mSurfaceHolder.mSurfaceLock.lock(); 1619 try { 1620 mSurfaceHolder.mSurface = new Surface(); 1621 } finally { 1622 mSurfaceHolder.mSurfaceLock.unlock(); 1623 } 1624 } 1625 } 1626 1627 if (mAttachInfo.mHardwareRenderer != null && 1628 mAttachInfo.mHardwareRenderer.isEnabled()) { 1629 if (hwInitialized || windowShouldResize || 1630 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1631 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1632 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1633 if (!hwInitialized) { 1634 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1635 mFullRedrawNeeded = true; 1636 } 1637 } 1638 } 1639 1640 if (!mStopped) { 1641 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1642 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1643 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1644 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1645 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1646 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1647 1648 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1649 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1650 + " mHeight=" + mHeight 1651 + " measuredHeight=" + host.getMeasuredHeight() 1652 + " coveredInsetsChanged=" + contentInsetsChanged); 1653 1654 // Ask host how big it wants to be 1655 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1656 1657 // Implementation of weights from WindowManager.LayoutParams 1658 // We just grow the dimensions as needed and re-measure if 1659 // needs be 1660 int width = host.getMeasuredWidth(); 1661 int height = host.getMeasuredHeight(); 1662 boolean measureAgain = false; 1663 1664 if (lp.horizontalWeight > 0.0f) { 1665 width += (int) ((mWidth - width) * lp.horizontalWeight); 1666 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1667 MeasureSpec.EXACTLY); 1668 measureAgain = true; 1669 } 1670 if (lp.verticalWeight > 0.0f) { 1671 height += (int) ((mHeight - height) * lp.verticalWeight); 1672 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1673 MeasureSpec.EXACTLY); 1674 measureAgain = true; 1675 } 1676 1677 if (measureAgain) { 1678 if (DEBUG_LAYOUT) Log.v(TAG, 1679 "And hey let's measure once more: width=" + width 1680 + " height=" + height); 1681 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1682 } 1683 1684 layoutRequested = true; 1685 } 1686 } 1687 } else { 1688 // Not the first pass and no window/insets/visibility change but the window 1689 // may have moved and we need check that and if so to update the left and right 1690 // in the attach info. We translate only the window frame since on window move 1691 // the window manager tells us only for the new frame but the insets are the 1692 // same and we do not want to translate them more than once. 1693 1694 // TODO: Well, we are checking whether the frame has changed similarly 1695 // to how this is done for the insets. This is however incorrect since 1696 // the insets and the frame are translated. For example, the old frame 1697 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1698 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1699 // true since we are comparing a not translated value to a translated one. 1700 // This scenario is rare but we may want to fix that. 1701 1702 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1703 || attachInfo.mWindowTop != frame.top); 1704 if (windowMoved) { 1705 if (mTranslator != null) { 1706 mTranslator.translateRectInScreenToAppWinFrame(frame); 1707 } 1708 attachInfo.mWindowLeft = frame.left; 1709 attachInfo.mWindowTop = frame.top; 1710 } 1711 } 1712 1713 final boolean didLayout = layoutRequested && !mStopped; 1714 boolean triggerGlobalLayoutListener = didLayout 1715 || attachInfo.mRecomputeGlobalAttributes; 1716 if (didLayout) { 1717 performLayout(); 1718 1719 // By this point all views have been sized and positionned 1720 // We can compute the transparent area 1721 1722 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1723 // start out transparent 1724 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1725 host.getLocationInWindow(mTmpLocation); 1726 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1727 mTmpLocation[0] + host.mRight - host.mLeft, 1728 mTmpLocation[1] + host.mBottom - host.mTop); 1729 1730 host.gatherTransparentRegion(mTransparentRegion); 1731 if (mTranslator != null) { 1732 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1733 } 1734 1735 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1736 mPreviousTransparentRegion.set(mTransparentRegion); 1737 // reconfigure window manager 1738 try { 1739 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1740 } catch (RemoteException e) { 1741 } 1742 } 1743 } 1744 1745 if (DBG) { 1746 System.out.println("======================================"); 1747 System.out.println("performTraversals -- after setFrame"); 1748 host.debug(); 1749 } 1750 } 1751 1752 if (triggerGlobalLayoutListener) { 1753 attachInfo.mRecomputeGlobalAttributes = false; 1754 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1755 1756 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1757 postSendWindowContentChangedCallback(mView); 1758 } 1759 } 1760 1761 if (computesInternalInsets) { 1762 // Clear the original insets. 1763 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1764 insets.reset(); 1765 1766 // Compute new insets in place. 1767 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1768 1769 // Tell the window manager. 1770 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1771 mLastGivenInsets.set(insets); 1772 1773 // Translate insets to screen coordinates if needed. 1774 final Rect contentInsets; 1775 final Rect visibleInsets; 1776 final Region touchableRegion; 1777 if (mTranslator != null) { 1778 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1779 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1780 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1781 } else { 1782 contentInsets = insets.contentInsets; 1783 visibleInsets = insets.visibleInsets; 1784 touchableRegion = insets.touchableRegion; 1785 } 1786 1787 try { 1788 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1789 contentInsets, visibleInsets, touchableRegion); 1790 } catch (RemoteException e) { 1791 } 1792 } 1793 } 1794 1795 boolean skipDraw = false; 1796 1797 if (mFirst) { 1798 // handle first focus request 1799 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1800 + mView.hasFocus()); 1801 if (mView != null) { 1802 if (!mView.hasFocus()) { 1803 mView.requestFocus(View.FOCUS_FORWARD); 1804 mFocusedView = mRealFocusedView = mView.findFocus(); 1805 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1806 + mFocusedView); 1807 } else { 1808 mRealFocusedView = mView.findFocus(); 1809 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1810 + mRealFocusedView); 1811 } 1812 } 1813 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1814 // The first time we relayout the window, if the system is 1815 // doing window animations, we want to hold of on any future 1816 // draws until the animation is done. 1817 mWindowsAnimating = true; 1818 } 1819 } else if (mWindowsAnimating) { 1820 skipDraw = true; 1821 } 1822 1823 mFirst = false; 1824 mWillDrawSoon = false; 1825 mNewSurfaceNeeded = false; 1826 mViewVisibility = viewVisibility; 1827 1828 if (mAttachInfo.mHasWindowFocus) { 1829 final boolean imTarget = WindowManager.LayoutParams 1830 .mayUseInputMethod(mWindowAttributes.flags); 1831 if (imTarget != mLastWasImTarget) { 1832 mLastWasImTarget = imTarget; 1833 InputMethodManager imm = InputMethodManager.peekInstance(); 1834 if (imm != null && imTarget) { 1835 imm.startGettingWindowFocus(mView); 1836 imm.onWindowFocus(mView, mView.findFocus(), 1837 mWindowAttributes.softInputMode, 1838 !mHasHadWindowFocus, mWindowAttributes.flags); 1839 } 1840 } 1841 } 1842 1843 // Remember if we must report the next draw. 1844 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1845 mReportNextDraw = true; 1846 } 1847 1848 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1849 viewVisibility != View.VISIBLE; 1850 1851 if (!cancelDraw && !newSurface) { 1852 if (!skipDraw || mReportNextDraw) { 1853 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1854 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1855 mPendingTransitions.get(i).startChangingAnimations(); 1856 } 1857 mPendingTransitions.clear(); 1858 } 1859 1860 performDraw(); 1861 } 1862 } else { 1863 if (viewVisibility == View.VISIBLE) { 1864 // Try again 1865 scheduleTraversals(); 1866 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1867 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1868 mPendingTransitions.get(i).endChangingAnimations(); 1869 } 1870 mPendingTransitions.clear(); 1871 } 1872 } 1873 1874 mIsInTraversal = false; 1875 } 1876 1877 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1878 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1879 try { 1880 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1881 } finally { 1882 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1883 } 1884 } 1885 1886 /** 1887 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1888 * is currently undergoing a layout pass. 1889 * 1890 * @return whether the view hierarchy is currently undergoing a layout pass 1891 */ 1892 boolean isInLayout() { 1893 return mInLayout; 1894 } 1895 1896 /** 1897 * Called by {@link android.view.View#requestLayout()} if the view hiearchy is currently 1898 * undergoing a layout pass. requestLayout() should not be called during layout, but if it 1899 * is called anyway, we handle the situation here rather than leave the hierarchy in an 1900 * indeterminate state. The solution is to queue up all requests during layout, apply those 1901 * requests as soon as layout is complete, and then run layout once more immediately. If 1902 * more requestLayout() calls are received during that second layout pass, we post those 1903 * requests to the next frame, to avoid possible infinite loops. 1904 * 1905 * @param view the view that requested the layout. 1906 */ 1907 void requestLayoutDuringLayout(final View view) { 1908 if (!mHandlingLayoutInLayoutRequest) { 1909 if (!mLayoutRequesters.contains(view)) { 1910 Log.w("View", "requestLayout() called by " + view + " during layout pass"); 1911 mLayoutRequesters.add(view); 1912 } 1913 } else { 1914 Log.w("View", "requestLayout() called by " + view + " during second layout pass: " + 1915 "posting to next frame"); 1916 view.post(new Runnable() { 1917 @Override 1918 public void run() { 1919 view.requestLayout(); 1920 } 1921 }); 1922 } 1923 } 1924 1925 private void performLayout() { 1926 mLayoutRequested = false; 1927 mScrollMayChange = true; 1928 mInLayout = true; 1929 1930 final View host = mView; 1931 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1932 Log.v(TAG, "Laying out " + host + " to (" + 1933 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1934 } 1935 1936 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1937 try { 1938 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1939 mInLayout = false; 1940 int numViewsRequestingLayout = mLayoutRequesters.size(); 1941 if (numViewsRequestingLayout > 0) { 1942 // requestLayout() was called during layout: unusual, but try to handle correctly 1943 mHandlingLayoutInLayoutRequest = true; 1944 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1945 mLayoutRequesters.get(i).requestLayout(); 1946 } 1947 // Now run layout one more time 1948 mInLayout = true; 1949 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1950 mHandlingLayoutInLayoutRequest = false; 1951 mLayoutRequesters.clear(); 1952 } 1953 } finally { 1954 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1955 } 1956 mInLayout = false; 1957 } 1958 1959 public void requestTransparentRegion(View child) { 1960 // the test below should not fail unless someone is messing with us 1961 checkThread(); 1962 if (mView == child) { 1963 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 1964 // Need to make sure we re-evaluate the window attributes next 1965 // time around, to ensure the window has the correct format. 1966 mWindowAttributesChanged = true; 1967 mWindowAttributesChangesFlag = 0; 1968 requestLayout(); 1969 } 1970 } 1971 1972 /** 1973 * Figures out the measure spec for the root view in a window based on it's 1974 * layout params. 1975 * 1976 * @param windowSize 1977 * The available width or height of the window 1978 * 1979 * @param rootDimension 1980 * The layout params for one dimension (width or height) of the 1981 * window. 1982 * 1983 * @return The measure spec to use to measure the root view. 1984 */ 1985 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1986 int measureSpec; 1987 switch (rootDimension) { 1988 1989 case ViewGroup.LayoutParams.MATCH_PARENT: 1990 // Window can't resize. Force root view to be windowSize. 1991 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1992 break; 1993 case ViewGroup.LayoutParams.WRAP_CONTENT: 1994 // Window can resize. Set max size for root view. 1995 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1996 break; 1997 default: 1998 // Window wants to be an exact size. Force root view to be that size. 1999 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2000 break; 2001 } 2002 return measureSpec; 2003 } 2004 2005 int mHardwareYOffset; 2006 int mResizeAlpha; 2007 final Paint mResizePaint = new Paint(); 2008 2009 public void onHardwarePreDraw(HardwareCanvas canvas) { 2010 canvas.translate(0, -mHardwareYOffset); 2011 } 2012 2013 public void onHardwarePostDraw(HardwareCanvas canvas) { 2014 if (mResizeBuffer != null) { 2015 mResizePaint.setAlpha(mResizeAlpha); 2016 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2017 } 2018 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2019 } 2020 2021 /** 2022 * @hide 2023 */ 2024 void outputDisplayList(View view) { 2025 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2026 DisplayList displayList = view.getDisplayList(); 2027 if (displayList != null) { 2028 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2029 } 2030 } 2031 } 2032 2033 /** 2034 * @see #PROPERTY_PROFILE_RENDERING 2035 */ 2036 private void profileRendering(boolean enabled) { 2037 if (mProfileRendering) { 2038 mRenderProfilingEnabled = enabled; 2039 if (mRenderProfiler == null) { 2040 mRenderProfiler = new Choreographer.FrameCallback() { 2041 @Override 2042 public void doFrame(long frameTimeNanos) { 2043 mDirty.set(0, 0, mWidth, mHeight); 2044 scheduleTraversals(); 2045 if (mRenderProfilingEnabled) { 2046 Choreographer.getInstance().postFrameCallback(mRenderProfiler); 2047 } 2048 } 2049 }; 2050 Choreographer.getInstance().postFrameCallback(mRenderProfiler); 2051 } else { 2052 Choreographer.getInstance().removeFrameCallback(mRenderProfiler); 2053 mRenderProfiler = null; 2054 } 2055 } 2056 } 2057 2058 /** 2059 * Called from draw() when DEBUG_FPS is enabled 2060 */ 2061 private void trackFPS() { 2062 // Tracks frames per second drawn. First value in a series of draws may be bogus 2063 // because it down not account for the intervening idle time 2064 long nowTime = System.currentTimeMillis(); 2065 if (mFpsStartTime < 0) { 2066 mFpsStartTime = mFpsPrevTime = nowTime; 2067 mFpsNumFrames = 0; 2068 } else { 2069 ++mFpsNumFrames; 2070 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2071 long frameTime = nowTime - mFpsPrevTime; 2072 long totalTime = nowTime - mFpsStartTime; 2073 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2074 mFpsPrevTime = nowTime; 2075 if (totalTime > 1000) { 2076 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2077 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2078 mFpsStartTime = nowTime; 2079 mFpsNumFrames = 0; 2080 } 2081 } 2082 } 2083 2084 private void performDraw() { 2085 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2086 return; 2087 } 2088 2089 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2090 mFullRedrawNeeded = false; 2091 2092 mIsDrawing = true; 2093 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2094 try { 2095 draw(fullRedrawNeeded); 2096 } finally { 2097 mIsDrawing = false; 2098 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2099 } 2100 2101 if (mReportNextDraw) { 2102 mReportNextDraw = false; 2103 2104 if (LOCAL_LOGV) { 2105 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2106 } 2107 if (mSurfaceHolder != null && mSurface.isValid()) { 2108 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2109 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2110 if (callbacks != null) { 2111 for (SurfaceHolder.Callback c : callbacks) { 2112 if (c instanceof SurfaceHolder.Callback2) { 2113 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2114 mSurfaceHolder); 2115 } 2116 } 2117 } 2118 } 2119 try { 2120 mWindowSession.finishDrawing(mWindow); 2121 } catch (RemoteException e) { 2122 } 2123 } 2124 } 2125 2126 private void draw(boolean fullRedrawNeeded) { 2127 Surface surface = mSurface; 2128 if (surface == null || !surface.isValid()) { 2129 return; 2130 } 2131 2132 if (DEBUG_FPS) { 2133 trackFPS(); 2134 } 2135 2136 if (!sFirstDrawComplete) { 2137 synchronized (sFirstDrawHandlers) { 2138 sFirstDrawComplete = true; 2139 final int count = sFirstDrawHandlers.size(); 2140 for (int i = 0; i< count; i++) { 2141 mHandler.post(sFirstDrawHandlers.get(i)); 2142 } 2143 } 2144 } 2145 2146 scrollToRectOrFocus(null, false); 2147 2148 final AttachInfo attachInfo = mAttachInfo; 2149 if (attachInfo.mViewScrollChanged) { 2150 attachInfo.mViewScrollChanged = false; 2151 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2152 } 2153 2154 int yoff; 2155 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2156 if (animating) { 2157 yoff = mScroller.getCurrY(); 2158 } else { 2159 yoff = mScrollY; 2160 } 2161 if (mCurScrollY != yoff) { 2162 mCurScrollY = yoff; 2163 fullRedrawNeeded = true; 2164 } 2165 2166 final float appScale = attachInfo.mApplicationScale; 2167 final boolean scalingRequired = attachInfo.mScalingRequired; 2168 2169 int resizeAlpha = 0; 2170 if (mResizeBuffer != null) { 2171 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2172 if (deltaTime < mResizeBufferDuration) { 2173 float amt = deltaTime/(float) mResizeBufferDuration; 2174 amt = mResizeInterpolator.getInterpolation(amt); 2175 animating = true; 2176 resizeAlpha = 255 - (int)(amt*255); 2177 } else { 2178 disposeResizeBuffer(); 2179 } 2180 } 2181 2182 final Rect dirty = mDirty; 2183 if (mSurfaceHolder != null) { 2184 // The app owns the surface, we won't draw. 2185 dirty.setEmpty(); 2186 if (animating) { 2187 if (mScroller != null) { 2188 mScroller.abortAnimation(); 2189 } 2190 disposeResizeBuffer(); 2191 } 2192 return; 2193 } 2194 2195 if (fullRedrawNeeded) { 2196 attachInfo.mIgnoreDirtyState = true; 2197 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2198 } 2199 2200 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2201 Log.v(TAG, "Draw " + mView + "/" 2202 + mWindowAttributes.getTitle() 2203 + ": dirty={" + dirty.left + "," + dirty.top 2204 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2205 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2206 appScale + ", width=" + mWidth + ", height=" + mHeight); 2207 } 2208 2209 attachInfo.mTreeObserver.dispatchOnDraw(); 2210 2211 if (!dirty.isEmpty() || mIsAnimating) { 2212 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2213 // Draw with hardware renderer. 2214 mIsAnimating = false; 2215 mHardwareYOffset = yoff; 2216 mResizeAlpha = resizeAlpha; 2217 2218 mCurrentDirty.set(dirty); 2219 mCurrentDirty.union(mPreviousDirty); 2220 mPreviousDirty.set(dirty); 2221 dirty.setEmpty(); 2222 2223 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2224 animating ? null : mCurrentDirty)) { 2225 mPreviousDirty.set(0, 0, mWidth, mHeight); 2226 } 2227 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2228 return; 2229 } 2230 } 2231 2232 if (animating) { 2233 mFullRedrawNeeded = true; 2234 scheduleTraversals(); 2235 } 2236 } 2237 2238 /** 2239 * @return true if drawing was succesfull, false if an error occurred 2240 */ 2241 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2242 boolean scalingRequired, Rect dirty) { 2243 2244 // If we get here with a disabled & requested hardware renderer, something went 2245 // wrong (an invalidate posted right before we destroyed the hardware surface 2246 // for instance) so we should just bail out. Locking the surface with software 2247 // rendering at this point would lock it forever and prevent hardware renderer 2248 // from doing its job when it comes back. 2249 if (attachInfo.mHardwareRenderer != null && !attachInfo.mHardwareRenderer.isEnabled() && 2250 attachInfo.mHardwareRenderer.isRequested()) { 2251 mFullRedrawNeeded = true; 2252 scheduleTraversals(); 2253 return false; 2254 } 2255 2256 // Draw with software renderer. 2257 Canvas canvas; 2258 try { 2259 int left = dirty.left; 2260 int top = dirty.top; 2261 int right = dirty.right; 2262 int bottom = dirty.bottom; 2263 2264 canvas = mSurface.lockCanvas(dirty); 2265 2266 if (left != dirty.left || top != dirty.top || right != dirty.right || 2267 bottom != dirty.bottom) { 2268 attachInfo.mIgnoreDirtyState = true; 2269 } 2270 2271 // TODO: Do this in native 2272 canvas.setDensity(mDensity); 2273 } catch (Surface.OutOfResourcesException e) { 2274 Log.e(TAG, "OutOfResourcesException locking surface", e); 2275 try { 2276 if (!mWindowSession.outOfMemory(mWindow)) { 2277 Slog.w(TAG, "No processes killed for memory; killing self"); 2278 Process.killProcess(Process.myPid()); 2279 } 2280 } catch (RemoteException ex) { 2281 } 2282 mLayoutRequested = true; // ask wm for a new surface next time. 2283 return false; 2284 } catch (IllegalArgumentException e) { 2285 Log.e(TAG, "Could not lock surface", e); 2286 // Don't assume this is due to out of memory, it could be 2287 // something else, and if it is something else then we could 2288 // kill stuff (or ourself) for no reason. 2289 mLayoutRequested = true; // ask wm for a new surface next time. 2290 return false; 2291 } 2292 2293 try { 2294 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2295 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2296 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2297 //canvas.drawARGB(255, 255, 0, 0); 2298 } 2299 2300 // If this bitmap's format includes an alpha channel, we 2301 // need to clear it before drawing so that the child will 2302 // properly re-composite its drawing on a transparent 2303 // background. This automatically respects the clip/dirty region 2304 // or 2305 // If we are applying an offset, we need to clear the area 2306 // where the offset doesn't appear to avoid having garbage 2307 // left in the blank areas. 2308 if (!canvas.isOpaque() || yoff != 0) { 2309 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2310 } 2311 2312 dirty.setEmpty(); 2313 mIsAnimating = false; 2314 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2315 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2316 2317 if (DEBUG_DRAW) { 2318 Context cxt = mView.getContext(); 2319 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2320 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2321 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2322 } 2323 try { 2324 canvas.translate(0, -yoff); 2325 if (mTranslator != null) { 2326 mTranslator.translateCanvas(canvas); 2327 } 2328 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2329 attachInfo.mSetIgnoreDirtyState = false; 2330 2331 mView.draw(canvas); 2332 2333 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2334 } finally { 2335 if (!attachInfo.mSetIgnoreDirtyState) { 2336 // Only clear the flag if it was not set during the mView.draw() call 2337 attachInfo.mIgnoreDirtyState = false; 2338 } 2339 } 2340 } finally { 2341 try { 2342 surface.unlockCanvasAndPost(canvas); 2343 } catch (IllegalArgumentException e) { 2344 Log.e(TAG, "Could not unlock surface", e); 2345 mLayoutRequested = true; // ask wm for a new surface next time. 2346 //noinspection ReturnInsideFinallyBlock 2347 return false; 2348 } 2349 2350 if (LOCAL_LOGV) { 2351 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2352 } 2353 } 2354 return true; 2355 } 2356 2357 /** 2358 * We want to draw a highlight around the current accessibility focused. 2359 * Since adding a style for all possible view is not a viable option we 2360 * have this specialized drawing method. 2361 * 2362 * Note: We are doing this here to be able to draw the highlight for 2363 * virtual views in addition to real ones. 2364 * 2365 * @param canvas The canvas on which to draw. 2366 */ 2367 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2368 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2369 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2370 return; 2371 } 2372 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2373 return; 2374 } 2375 Drawable drawable = getAccessibilityFocusedDrawable(); 2376 if (drawable == null) { 2377 return; 2378 } 2379 AccessibilityNodeProvider provider = 2380 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2381 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2382 if (provider == null) { 2383 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2384 } else { 2385 if (mAccessibilityFocusedVirtualView == null) { 2386 return; 2387 } 2388 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2389 } 2390 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2391 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2392 drawable.setBounds(bounds); 2393 drawable.draw(canvas); 2394 } 2395 2396 private Drawable getAccessibilityFocusedDrawable() { 2397 if (mAttachInfo != null) { 2398 // Lazily load the accessibility focus drawable. 2399 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2400 TypedValue value = new TypedValue(); 2401 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2402 R.attr.accessibilityFocusedDrawable, value, true); 2403 if (resolved) { 2404 mAttachInfo.mAccessibilityFocusDrawable = 2405 mView.mContext.getResources().getDrawable(value.resourceId); 2406 } 2407 } 2408 return mAttachInfo.mAccessibilityFocusDrawable; 2409 } 2410 return null; 2411 } 2412 2413 void invalidateDisplayLists() { 2414 final ArrayList<DisplayList> displayLists = mDisplayLists; 2415 final int count = displayLists.size(); 2416 2417 for (int i = 0; i < count; i++) { 2418 final DisplayList displayList = displayLists.get(i); 2419 displayList.invalidate(); 2420 displayList.clear(); 2421 } 2422 2423 displayLists.clear(); 2424 } 2425 2426 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2427 final View.AttachInfo attachInfo = mAttachInfo; 2428 final Rect ci = attachInfo.mContentInsets; 2429 final Rect vi = attachInfo.mVisibleInsets; 2430 int scrollY = 0; 2431 boolean handled = false; 2432 2433 if (vi.left > ci.left || vi.top > ci.top 2434 || vi.right > ci.right || vi.bottom > ci.bottom) { 2435 // We'll assume that we aren't going to change the scroll 2436 // offset, since we want to avoid that unless it is actually 2437 // going to make the focus visible... otherwise we scroll 2438 // all over the place. 2439 scrollY = mScrollY; 2440 // We can be called for two different situations: during a draw, 2441 // to update the scroll position if the focus has changed (in which 2442 // case 'rectangle' is null), or in response to a 2443 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2444 // is non-null and we just want to scroll to whatever that 2445 // rectangle is). 2446 View focus = mRealFocusedView; 2447 2448 // When in touch mode, focus points to the previously focused view, 2449 // which may have been removed from the view hierarchy. The following 2450 // line checks whether the view is still in our hierarchy. 2451 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2452 mRealFocusedView = null; 2453 return false; 2454 } 2455 2456 if (focus != mLastScrolledFocus) { 2457 // If the focus has changed, then ignore any requests to scroll 2458 // to a rectangle; first we want to make sure the entire focus 2459 // view is visible. 2460 rectangle = null; 2461 } 2462 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2463 + " rectangle=" + rectangle + " ci=" + ci 2464 + " vi=" + vi); 2465 if (focus == mLastScrolledFocus && !mScrollMayChange 2466 && rectangle == null) { 2467 // Optimization: if the focus hasn't changed since last 2468 // time, and no layout has happened, then just leave things 2469 // as they are. 2470 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2471 + mScrollY + " vi=" + vi.toShortString()); 2472 } else if (focus != null) { 2473 // We need to determine if the currently focused view is 2474 // within the visible part of the window and, if not, apply 2475 // a pan so it can be seen. 2476 mLastScrolledFocus = focus; 2477 mScrollMayChange = false; 2478 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2479 // Try to find the rectangle from the focus view. 2480 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2481 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2482 + mView.getWidth() + " h=" + mView.getHeight() 2483 + " ci=" + ci.toShortString() 2484 + " vi=" + vi.toShortString()); 2485 if (rectangle == null) { 2486 focus.getFocusedRect(mTempRect); 2487 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2488 + ": focusRect=" + mTempRect.toShortString()); 2489 if (mView instanceof ViewGroup) { 2490 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2491 focus, mTempRect); 2492 } 2493 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2494 "Focus in window: focusRect=" 2495 + mTempRect.toShortString() 2496 + " visRect=" + mVisRect.toShortString()); 2497 } else { 2498 mTempRect.set(rectangle); 2499 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2500 "Request scroll to rect: " 2501 + mTempRect.toShortString() 2502 + " visRect=" + mVisRect.toShortString()); 2503 } 2504 if (mTempRect.intersect(mVisRect)) { 2505 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2506 "Focus window visible rect: " 2507 + mTempRect.toShortString()); 2508 if (mTempRect.height() > 2509 (mView.getHeight()-vi.top-vi.bottom)) { 2510 // If the focus simply is not going to fit, then 2511 // best is probably just to leave things as-is. 2512 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2513 "Too tall; leaving scrollY=" + scrollY); 2514 } else if ((mTempRect.top-scrollY) < vi.top) { 2515 scrollY -= vi.top - (mTempRect.top-scrollY); 2516 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2517 "Top covered; scrollY=" + scrollY); 2518 } else if ((mTempRect.bottom-scrollY) 2519 > (mView.getHeight()-vi.bottom)) { 2520 scrollY += (mTempRect.bottom-scrollY) 2521 - (mView.getHeight()-vi.bottom); 2522 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2523 "Bottom covered; scrollY=" + scrollY); 2524 } 2525 handled = true; 2526 } 2527 } 2528 } 2529 } 2530 2531 if (scrollY != mScrollY) { 2532 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2533 + mScrollY + " , new=" + scrollY); 2534 if (!immediate && mResizeBuffer == null) { 2535 if (mScroller == null) { 2536 mScroller = new Scroller(mView.getContext()); 2537 } 2538 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2539 } else if (mScroller != null) { 2540 mScroller.abortAnimation(); 2541 } 2542 mScrollY = scrollY; 2543 } 2544 2545 return handled; 2546 } 2547 2548 /** 2549 * @hide 2550 */ 2551 public View getAccessibilityFocusedHost() { 2552 return mAccessibilityFocusedHost; 2553 } 2554 2555 /** 2556 * @hide 2557 */ 2558 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2559 return mAccessibilityFocusedVirtualView; 2560 } 2561 2562 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2563 // If we have a virtual view with accessibility focus we need 2564 // to clear the focus and invalidate the virtual view bounds. 2565 if (mAccessibilityFocusedVirtualView != null) { 2566 2567 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2568 View focusHost = mAccessibilityFocusedHost; 2569 focusHost.clearAccessibilityFocusNoCallbacks(); 2570 2571 // Wipe the state of the current accessibility focus since 2572 // the call into the provider to clear accessibility focus 2573 // will fire an accessibility event which will end up calling 2574 // this method and we want to have clean state when this 2575 // invocation happens. 2576 mAccessibilityFocusedHost = null; 2577 mAccessibilityFocusedVirtualView = null; 2578 2579 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2580 if (provider != null) { 2581 // Invalidate the area of the cleared accessibility focus. 2582 focusNode.getBoundsInParent(mTempRect); 2583 focusHost.invalidate(mTempRect); 2584 // Clear accessibility focus in the virtual node. 2585 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2586 focusNode.getSourceNodeId()); 2587 provider.performAction(virtualNodeId, 2588 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2589 } 2590 focusNode.recycle(); 2591 } 2592 if (mAccessibilityFocusedHost != null) { 2593 // Clear accessibility focus in the view. 2594 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2595 } 2596 2597 // Set the new focus host and node. 2598 mAccessibilityFocusedHost = view; 2599 mAccessibilityFocusedVirtualView = node; 2600 } 2601 2602 public void requestChildFocus(View child, View focused) { 2603 checkThread(); 2604 2605 if (DEBUG_INPUT_RESIZE) { 2606 Log.v(TAG, "Request child focus: focus now " + focused); 2607 } 2608 2609 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2610 scheduleTraversals(); 2611 2612 mFocusedView = mRealFocusedView = focused; 2613 } 2614 2615 public void clearChildFocus(View child) { 2616 checkThread(); 2617 2618 if (DEBUG_INPUT_RESIZE) { 2619 Log.v(TAG, "Clearing child focus"); 2620 } 2621 2622 mOldFocusedView = mFocusedView; 2623 2624 // Invoke the listener only if there is no view to take focus 2625 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2626 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2627 } 2628 2629 mFocusedView = mRealFocusedView = null; 2630 } 2631 2632 @Override 2633 public ViewParent getParentForAccessibility() { 2634 return null; 2635 } 2636 2637 public void focusableViewAvailable(View v) { 2638 checkThread(); 2639 if (mView != null) { 2640 if (!mView.hasFocus()) { 2641 v.requestFocus(); 2642 } else { 2643 // the one case where will transfer focus away from the current one 2644 // is if the current view is a view group that prefers to give focus 2645 // to its children first AND the view is a descendant of it. 2646 mFocusedView = mView.findFocus(); 2647 boolean descendantsHaveDibsOnFocus = 2648 (mFocusedView instanceof ViewGroup) && 2649 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2650 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2651 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2652 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2653 v.requestFocus(); 2654 } 2655 } 2656 } 2657 } 2658 2659 public void recomputeViewAttributes(View child) { 2660 checkThread(); 2661 if (mView == child) { 2662 mAttachInfo.mRecomputeGlobalAttributes = true; 2663 if (!mWillDrawSoon) { 2664 scheduleTraversals(); 2665 } 2666 } 2667 } 2668 2669 void dispatchDetachedFromWindow() { 2670 if (mView != null && mView.mAttachInfo != null) { 2671 if (mAttachInfo.mHardwareRenderer != null && 2672 mAttachInfo.mHardwareRenderer.isEnabled()) { 2673 mAttachInfo.mHardwareRenderer.validate(); 2674 } 2675 mView.dispatchDetachedFromWindow(); 2676 } 2677 2678 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2679 mAccessibilityManager.removeAccessibilityStateChangeListener( 2680 mAccessibilityInteractionConnectionManager); 2681 removeSendWindowContentChangedCallback(); 2682 2683 destroyHardwareRenderer(); 2684 2685 setAccessibilityFocus(null, null); 2686 2687 mView = null; 2688 mAttachInfo.mRootView = null; 2689 mAttachInfo.mSurface = null; 2690 2691 mSurface.release(); 2692 2693 if (mInputQueueCallback != null && mInputQueue != null) { 2694 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2695 mInputQueueCallback = null; 2696 mInputQueue = null; 2697 } else if (mInputEventReceiver != null) { 2698 mInputEventReceiver.dispose(); 2699 mInputEventReceiver = null; 2700 } 2701 try { 2702 mWindowSession.remove(mWindow); 2703 } catch (RemoteException e) { 2704 } 2705 2706 // Dispose the input channel after removing the window so the Window Manager 2707 // doesn't interpret the input channel being closed as an abnormal termination. 2708 if (mInputChannel != null) { 2709 mInputChannel.dispose(); 2710 mInputChannel = null; 2711 } 2712 2713 unscheduleTraversals(); 2714 } 2715 2716 void updateConfiguration(Configuration config, boolean force) { 2717 if (DEBUG_CONFIGURATION) Log.v(TAG, 2718 "Applying new config to window " 2719 + mWindowAttributes.getTitle() 2720 + ": " + config); 2721 2722 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2723 if (ci != null) { 2724 config = new Configuration(config); 2725 ci.applyToConfiguration(mNoncompatDensity, config); 2726 } 2727 2728 synchronized (sConfigCallbacks) { 2729 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2730 sConfigCallbacks.get(i).onConfigurationChanged(config); 2731 } 2732 } 2733 if (mView != null) { 2734 // At this point the resources have been updated to 2735 // have the most recent config, whatever that is. Use 2736 // the one in them which may be newer. 2737 config = mView.getResources().getConfiguration(); 2738 if (force || mLastConfiguration.diff(config) != 0) { 2739 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2740 final int currentLayoutDirection = config.getLayoutDirection(); 2741 mLastConfiguration.setTo(config); 2742 if (lastLayoutDirection != currentLayoutDirection && 2743 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2744 mView.setLayoutDirection(currentLayoutDirection); 2745 } 2746 mView.dispatchConfigurationChanged(config); 2747 } 2748 } 2749 } 2750 2751 /** 2752 * Return true if child is an ancestor of parent, (or equal to the parent). 2753 */ 2754 public static boolean isViewDescendantOf(View child, View parent) { 2755 if (child == parent) { 2756 return true; 2757 } 2758 2759 final ViewParent theParent = child.getParent(); 2760 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2761 } 2762 2763 private static void forceLayout(View view) { 2764 view.forceLayout(); 2765 if (view instanceof ViewGroup) { 2766 ViewGroup group = (ViewGroup) view; 2767 final int count = group.getChildCount(); 2768 for (int i = 0; i < count; i++) { 2769 forceLayout(group.getChildAt(i)); 2770 } 2771 } 2772 } 2773 2774 private final static int MSG_INVALIDATE = 1; 2775 private final static int MSG_INVALIDATE_RECT = 2; 2776 private final static int MSG_DIE = 3; 2777 private final static int MSG_RESIZED = 4; 2778 private final static int MSG_RESIZED_REPORT = 5; 2779 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2780 private final static int MSG_DISPATCH_KEY = 7; 2781 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2782 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2783 private final static int MSG_IME_FINISHED_EVENT = 10; 2784 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2785 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2786 private final static int MSG_CHECK_FOCUS = 13; 2787 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2788 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2789 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2790 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2791 private final static int MSG_UPDATE_CONFIGURATION = 18; 2792 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2793 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2794 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2795 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2796 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2797 private final static int MSG_INVALIDATE_WORLD = 24; 2798 private final static int MSG_WINDOW_MOVED = 25; 2799 2800 final class ViewRootHandler extends Handler { 2801 @Override 2802 public String getMessageName(Message message) { 2803 switch (message.what) { 2804 case MSG_INVALIDATE: 2805 return "MSG_INVALIDATE"; 2806 case MSG_INVALIDATE_RECT: 2807 return "MSG_INVALIDATE_RECT"; 2808 case MSG_DIE: 2809 return "MSG_DIE"; 2810 case MSG_RESIZED: 2811 return "MSG_RESIZED"; 2812 case MSG_RESIZED_REPORT: 2813 return "MSG_RESIZED_REPORT"; 2814 case MSG_WINDOW_FOCUS_CHANGED: 2815 return "MSG_WINDOW_FOCUS_CHANGED"; 2816 case MSG_DISPATCH_KEY: 2817 return "MSG_DISPATCH_KEY"; 2818 case MSG_DISPATCH_APP_VISIBILITY: 2819 return "MSG_DISPATCH_APP_VISIBILITY"; 2820 case MSG_DISPATCH_GET_NEW_SURFACE: 2821 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2822 case MSG_IME_FINISHED_EVENT: 2823 return "MSG_IME_FINISHED_EVENT"; 2824 case MSG_DISPATCH_KEY_FROM_IME: 2825 return "MSG_DISPATCH_KEY_FROM_IME"; 2826 case MSG_FINISH_INPUT_CONNECTION: 2827 return "MSG_FINISH_INPUT_CONNECTION"; 2828 case MSG_CHECK_FOCUS: 2829 return "MSG_CHECK_FOCUS"; 2830 case MSG_CLOSE_SYSTEM_DIALOGS: 2831 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2832 case MSG_DISPATCH_DRAG_EVENT: 2833 return "MSG_DISPATCH_DRAG_EVENT"; 2834 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2835 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2836 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2837 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2838 case MSG_UPDATE_CONFIGURATION: 2839 return "MSG_UPDATE_CONFIGURATION"; 2840 case MSG_PROCESS_INPUT_EVENTS: 2841 return "MSG_PROCESS_INPUT_EVENTS"; 2842 case MSG_DISPATCH_SCREEN_STATE: 2843 return "MSG_DISPATCH_SCREEN_STATE"; 2844 case MSG_INVALIDATE_DISPLAY_LIST: 2845 return "MSG_INVALIDATE_DISPLAY_LIST"; 2846 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2847 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2848 case MSG_DISPATCH_DONE_ANIMATING: 2849 return "MSG_DISPATCH_DONE_ANIMATING"; 2850 case MSG_WINDOW_MOVED: 2851 return "MSG_WINDOW_MOVED"; 2852 } 2853 return super.getMessageName(message); 2854 } 2855 2856 @Override 2857 public void handleMessage(Message msg) { 2858 switch (msg.what) { 2859 case MSG_INVALIDATE: 2860 ((View) msg.obj).invalidate(); 2861 break; 2862 case MSG_INVALIDATE_RECT: 2863 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2864 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2865 info.recycle(); 2866 break; 2867 case MSG_IME_FINISHED_EVENT: 2868 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2869 break; 2870 case MSG_PROCESS_INPUT_EVENTS: 2871 mProcessInputEventsScheduled = false; 2872 doProcessInputEvents(); 2873 break; 2874 case MSG_DISPATCH_APP_VISIBILITY: 2875 handleAppVisibility(msg.arg1 != 0); 2876 break; 2877 case MSG_DISPATCH_GET_NEW_SURFACE: 2878 handleGetNewSurface(); 2879 break; 2880 case MSG_RESIZED: { 2881 // Recycled in the fall through... 2882 SomeArgs args = (SomeArgs) msg.obj; 2883 if (mWinFrame.equals(args.arg1) 2884 && mPendingContentInsets.equals(args.arg2) 2885 && mPendingVisibleInsets.equals(args.arg3) 2886 && args.arg4 == null) { 2887 break; 2888 } 2889 } // fall through... 2890 case MSG_RESIZED_REPORT: 2891 if (mAdded) { 2892 SomeArgs args = (SomeArgs) msg.obj; 2893 2894 Configuration config = (Configuration) args.arg4; 2895 if (config != null) { 2896 updateConfiguration(config, false); 2897 } 2898 2899 mWinFrame.set((Rect) args.arg1); 2900 mPendingContentInsets.set((Rect) args.arg2); 2901 mPendingVisibleInsets.set((Rect) args.arg3); 2902 2903 args.recycle(); 2904 2905 if (msg.what == MSG_RESIZED_REPORT) { 2906 mReportNextDraw = true; 2907 } 2908 2909 if (mView != null) { 2910 forceLayout(mView); 2911 } 2912 2913 requestLayout(); 2914 } 2915 break; 2916 case MSG_WINDOW_MOVED: 2917 if (mAdded) { 2918 final int w = mWinFrame.width(); 2919 final int h = mWinFrame.height(); 2920 final int l = msg.arg1; 2921 final int t = msg.arg2; 2922 mWinFrame.left = l; 2923 mWinFrame.right = l + w; 2924 mWinFrame.top = t; 2925 mWinFrame.bottom = t + h; 2926 2927 if (mView != null) { 2928 forceLayout(mView); 2929 } 2930 requestLayout(); 2931 } 2932 break; 2933 case MSG_WINDOW_FOCUS_CHANGED: { 2934 if (mAdded) { 2935 boolean hasWindowFocus = msg.arg1 != 0; 2936 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2937 2938 profileRendering(hasWindowFocus); 2939 2940 if (hasWindowFocus) { 2941 boolean inTouchMode = msg.arg2 != 0; 2942 ensureTouchModeLocally(inTouchMode); 2943 2944 if (mAttachInfo.mHardwareRenderer != null && 2945 mSurface != null && mSurface.isValid()) { 2946 mFullRedrawNeeded = true; 2947 try { 2948 if (mAttachInfo.mHardwareRenderer.initializeIfNeeded( 2949 mWidth, mHeight, mHolder.getSurface())) { 2950 mFullRedrawNeeded = true; 2951 } 2952 } catch (Surface.OutOfResourcesException e) { 2953 Log.e(TAG, "OutOfResourcesException locking surface", e); 2954 try { 2955 if (!mWindowSession.outOfMemory(mWindow)) { 2956 Slog.w(TAG, "No processes killed for memory; killing self"); 2957 Process.killProcess(Process.myPid()); 2958 } 2959 } catch (RemoteException ex) { 2960 } 2961 // Retry in a bit. 2962 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2963 return; 2964 } 2965 } 2966 } 2967 2968 mLastWasImTarget = WindowManager.LayoutParams 2969 .mayUseInputMethod(mWindowAttributes.flags); 2970 2971 InputMethodManager imm = InputMethodManager.peekInstance(); 2972 if (mView != null) { 2973 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2974 imm.startGettingWindowFocus(mView); 2975 } 2976 mAttachInfo.mKeyDispatchState.reset(); 2977 mView.dispatchWindowFocusChanged(hasWindowFocus); 2978 } 2979 2980 // Note: must be done after the focus change callbacks, 2981 // so all of the view state is set up correctly. 2982 if (hasWindowFocus) { 2983 if (imm != null && mLastWasImTarget) { 2984 imm.onWindowFocus(mView, mView.findFocus(), 2985 mWindowAttributes.softInputMode, 2986 !mHasHadWindowFocus, mWindowAttributes.flags); 2987 } 2988 // Clear the forward bit. We can just do this directly, since 2989 // the window manager doesn't care about it. 2990 mWindowAttributes.softInputMode &= 2991 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2992 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2993 .softInputMode &= 2994 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2995 mHasHadWindowFocus = true; 2996 } 2997 2998 setAccessibilityFocus(null, null); 2999 3000 if (mView != null && mAccessibilityManager.isEnabled()) { 3001 if (hasWindowFocus) { 3002 mView.sendAccessibilityEvent( 3003 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3004 } 3005 } 3006 } 3007 } break; 3008 case MSG_DIE: 3009 doDie(); 3010 break; 3011 case MSG_DISPATCH_KEY: { 3012 KeyEvent event = (KeyEvent)msg.obj; 3013 enqueueInputEvent(event, null, 0, true); 3014 } break; 3015 case MSG_DISPATCH_KEY_FROM_IME: { 3016 if (LOCAL_LOGV) Log.v( 3017 TAG, "Dispatching key " 3018 + msg.obj + " from IME to " + mView); 3019 KeyEvent event = (KeyEvent)msg.obj; 3020 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3021 // The IME is trying to say this event is from the 3022 // system! Bad bad bad! 3023 //noinspection UnusedAssignment 3024 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3025 } 3026 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3027 } break; 3028 case MSG_FINISH_INPUT_CONNECTION: { 3029 InputMethodManager imm = InputMethodManager.peekInstance(); 3030 if (imm != null) { 3031 imm.reportFinishInputConnection((InputConnection)msg.obj); 3032 } 3033 } break; 3034 case MSG_CHECK_FOCUS: { 3035 InputMethodManager imm = InputMethodManager.peekInstance(); 3036 if (imm != null) { 3037 imm.checkFocus(); 3038 } 3039 } break; 3040 case MSG_CLOSE_SYSTEM_DIALOGS: { 3041 if (mView != null) { 3042 mView.onCloseSystemDialogs((String)msg.obj); 3043 } 3044 } break; 3045 case MSG_DISPATCH_DRAG_EVENT: 3046 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3047 DragEvent event = (DragEvent)msg.obj; 3048 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3049 handleDragEvent(event); 3050 } break; 3051 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3052 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 3053 } break; 3054 case MSG_UPDATE_CONFIGURATION: { 3055 Configuration config = (Configuration)msg.obj; 3056 if (config.isOtherSeqNewer(mLastConfiguration)) { 3057 config = mLastConfiguration; 3058 } 3059 updateConfiguration(config, false); 3060 } break; 3061 case MSG_DISPATCH_SCREEN_STATE: { 3062 if (mView != null) { 3063 handleScreenStateChange(msg.arg1 == 1); 3064 } 3065 } break; 3066 case MSG_INVALIDATE_DISPLAY_LIST: { 3067 invalidateDisplayLists(); 3068 } break; 3069 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3070 setAccessibilityFocus(null, null); 3071 } break; 3072 case MSG_DISPATCH_DONE_ANIMATING: { 3073 handleDispatchDoneAnimating(); 3074 } break; 3075 case MSG_INVALIDATE_WORLD: { 3076 if (mView != null) { 3077 invalidateWorld(mView); 3078 } 3079 } break; 3080 } 3081 } 3082 } 3083 3084 final ViewRootHandler mHandler = new ViewRootHandler(); 3085 3086 /** 3087 * Something in the current window tells us we need to change the touch mode. For 3088 * example, we are not in touch mode, and the user touches the screen. 3089 * 3090 * If the touch mode has changed, tell the window manager, and handle it locally. 3091 * 3092 * @param inTouchMode Whether we want to be in touch mode. 3093 * @return True if the touch mode changed and focus changed was changed as a result 3094 */ 3095 boolean ensureTouchMode(boolean inTouchMode) { 3096 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3097 + "touch mode is " + mAttachInfo.mInTouchMode); 3098 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3099 3100 // tell the window manager 3101 try { 3102 mWindowSession.setInTouchMode(inTouchMode); 3103 } catch (RemoteException e) { 3104 throw new RuntimeException(e); 3105 } 3106 3107 // handle the change 3108 return ensureTouchModeLocally(inTouchMode); 3109 } 3110 3111 /** 3112 * Ensure that the touch mode for this window is set, and if it is changing, 3113 * take the appropriate action. 3114 * @param inTouchMode Whether we want to be in touch mode. 3115 * @return True if the touch mode changed and focus changed was changed as a result 3116 */ 3117 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3118 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3119 + "touch mode is " + mAttachInfo.mInTouchMode); 3120 3121 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3122 3123 mAttachInfo.mInTouchMode = inTouchMode; 3124 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3125 3126 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3127 } 3128 3129 private boolean enterTouchMode() { 3130 if (mView != null) { 3131 if (mView.hasFocus()) { 3132 // note: not relying on mFocusedView here because this could 3133 // be when the window is first being added, and mFocused isn't 3134 // set yet. 3135 final View focused = mView.findFocus(); 3136 if (focused != null && !focused.isFocusableInTouchMode()) { 3137 3138 final ViewGroup ancestorToTakeFocus = 3139 findAncestorToTakeFocusInTouchMode(focused); 3140 if (ancestorToTakeFocus != null) { 3141 // there is an ancestor that wants focus after its descendants that 3142 // is focusable in touch mode.. give it focus 3143 return ancestorToTakeFocus.requestFocus(); 3144 } else { 3145 // nothing appropriate to have focus in touch mode, clear it out 3146 mView.unFocus(); 3147 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3148 mFocusedView = null; 3149 mOldFocusedView = null; 3150 return true; 3151 } 3152 } 3153 } 3154 } 3155 return false; 3156 } 3157 3158 /** 3159 * Find an ancestor of focused that wants focus after its descendants and is 3160 * focusable in touch mode. 3161 * @param focused The currently focused view. 3162 * @return An appropriate view, or null if no such view exists. 3163 */ 3164 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3165 ViewParent parent = focused.getParent(); 3166 while (parent instanceof ViewGroup) { 3167 final ViewGroup vgParent = (ViewGroup) parent; 3168 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3169 && vgParent.isFocusableInTouchMode()) { 3170 return vgParent; 3171 } 3172 if (vgParent.isRootNamespace()) { 3173 return null; 3174 } else { 3175 parent = vgParent.getParent(); 3176 } 3177 } 3178 return null; 3179 } 3180 3181 private boolean leaveTouchMode() { 3182 if (mView != null) { 3183 if (mView.hasFocus()) { 3184 // i learned the hard way to not trust mFocusedView :) 3185 mFocusedView = mView.findFocus(); 3186 if (!(mFocusedView instanceof ViewGroup)) { 3187 // some view has focus, let it keep it 3188 return false; 3189 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3190 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3191 // some view group has focus, and doesn't prefer its children 3192 // over itself for focus, so let them keep it. 3193 return false; 3194 } 3195 } 3196 3197 // find the best view to give focus to in this brave new non-touch-mode 3198 // world 3199 final View focused = focusSearch(null, View.FOCUS_DOWN); 3200 if (focused != null) { 3201 return focused.requestFocus(View.FOCUS_DOWN); 3202 } 3203 } 3204 return false; 3205 } 3206 3207 private void deliverInputEvent(QueuedInputEvent q) { 3208 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3209 try { 3210 if (q.mEvent instanceof KeyEvent) { 3211 deliverKeyEvent(q); 3212 } else { 3213 final int source = q.mEvent.getSource(); 3214 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3215 deliverPointerEvent(q); 3216 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3217 deliverTrackballEvent(q); 3218 } else { 3219 deliverGenericMotionEvent(q); 3220 } 3221 } 3222 } finally { 3223 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3224 } 3225 } 3226 3227 private void deliverPointerEvent(QueuedInputEvent q) { 3228 final MotionEvent event = (MotionEvent)q.mEvent; 3229 final boolean isTouchEvent = event.isTouchEvent(); 3230 if (mInputEventConsistencyVerifier != null) { 3231 if (isTouchEvent) { 3232 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3233 } else { 3234 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3235 } 3236 } 3237 3238 // If there is no view, then the event will not be handled. 3239 if (mView == null || !mAdded) { 3240 finishInputEvent(q, false); 3241 return; 3242 } 3243 3244 // Translate the pointer event for compatibility, if needed. 3245 if (mTranslator != null) { 3246 mTranslator.translateEventInScreenToAppWindow(event); 3247 } 3248 3249 // Enter touch mode on down or scroll. 3250 final int action = event.getAction(); 3251 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3252 ensureTouchMode(true); 3253 } 3254 3255 // Offset the scroll position. 3256 if (mCurScrollY != 0) { 3257 event.offsetLocation(0, mCurScrollY); 3258 } 3259 if (MEASURE_LATENCY) { 3260 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3261 } 3262 3263 // Remember the touch position for possible drag-initiation. 3264 if (isTouchEvent) { 3265 mLastTouchPoint.x = event.getRawX(); 3266 mLastTouchPoint.y = event.getRawY(); 3267 } 3268 3269 // Dispatch touch to view hierarchy. 3270 boolean handled = mView.dispatchPointerEvent(event); 3271 if (MEASURE_LATENCY) { 3272 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3273 } 3274 if (handled) { 3275 finishInputEvent(q, true); 3276 return; 3277 } 3278 3279 // Pointer event was unhandled. 3280 finishInputEvent(q, false); 3281 } 3282 3283 private void deliverTrackballEvent(QueuedInputEvent q) { 3284 final MotionEvent event = (MotionEvent)q.mEvent; 3285 if (mInputEventConsistencyVerifier != null) { 3286 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3287 } 3288 3289 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3290 if (LOCAL_LOGV) 3291 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3292 3293 // Dispatch to the IME before propagating down the view hierarchy. 3294 // The IME will eventually call back into handleImeFinishedEvent. 3295 if (mLastWasImTarget) { 3296 InputMethodManager imm = InputMethodManager.peekInstance(); 3297 if (imm != null) { 3298 final int seq = event.getSequenceNumber(); 3299 if (DEBUG_IMF) 3300 Log.v(TAG, "Sending trackball event to IME: seq=" 3301 + seq + " event=" + event); 3302 imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3303 mInputMethodCallback); 3304 return; 3305 } 3306 } 3307 } 3308 3309 // Not dispatching to IME, continue with post IME actions. 3310 deliverTrackballEventPostIme(q); 3311 } 3312 3313 private void deliverTrackballEventPostIme(QueuedInputEvent q) { 3314 final MotionEvent event = (MotionEvent) q.mEvent; 3315 3316 // If there is no view, then the event will not be handled. 3317 if (mView == null || !mAdded) { 3318 finishInputEvent(q, false); 3319 return; 3320 } 3321 3322 // Deliver the trackball event to the view. 3323 if (mView.dispatchTrackballEvent(event)) { 3324 // If we reach this, we delivered a trackball event to mView and 3325 // mView consumed it. Because we will not translate the trackball 3326 // event into a key event, touch mode will not exit, so we exit 3327 // touch mode here. 3328 ensureTouchMode(false); 3329 3330 finishInputEvent(q, true); 3331 mLastTrackballTime = Integer.MIN_VALUE; 3332 return; 3333 } 3334 3335 // Translate the trackball event into DPAD keys and try to deliver those. 3336 final TrackballAxis x = mTrackballAxisX; 3337 final TrackballAxis y = mTrackballAxisY; 3338 3339 long curTime = SystemClock.uptimeMillis(); 3340 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3341 // It has been too long since the last movement, 3342 // so restart at the beginning. 3343 x.reset(0); 3344 y.reset(0); 3345 mLastTrackballTime = curTime; 3346 } 3347 3348 final int action = event.getAction(); 3349 final int metaState = event.getMetaState(); 3350 switch (action) { 3351 case MotionEvent.ACTION_DOWN: 3352 x.reset(2); 3353 y.reset(2); 3354 enqueueInputEvent(new KeyEvent(curTime, curTime, 3355 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3356 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3357 InputDevice.SOURCE_KEYBOARD)); 3358 break; 3359 case MotionEvent.ACTION_UP: 3360 x.reset(2); 3361 y.reset(2); 3362 enqueueInputEvent(new KeyEvent(curTime, curTime, 3363 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3364 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3365 InputDevice.SOURCE_KEYBOARD)); 3366 break; 3367 } 3368 3369 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3370 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3371 + " move=" + event.getX() 3372 + " / Y=" + y.position + " step=" 3373 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3374 + " move=" + event.getY()); 3375 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3376 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3377 3378 // Generate DPAD events based on the trackball movement. 3379 // We pick the axis that has moved the most as the direction of 3380 // the DPAD. When we generate DPAD events for one axis, then the 3381 // other axis is reset -- we don't want to perform DPAD jumps due 3382 // to slight movements in the trackball when making major movements 3383 // along the other axis. 3384 int keycode = 0; 3385 int movement = 0; 3386 float accel = 1; 3387 if (xOff > yOff) { 3388 movement = x.generate((2/event.getXPrecision())); 3389 if (movement != 0) { 3390 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3391 : KeyEvent.KEYCODE_DPAD_LEFT; 3392 accel = x.acceleration; 3393 y.reset(2); 3394 } 3395 } else if (yOff > 0) { 3396 movement = y.generate((2/event.getYPrecision())); 3397 if (movement != 0) { 3398 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3399 : KeyEvent.KEYCODE_DPAD_UP; 3400 accel = y.acceleration; 3401 x.reset(2); 3402 } 3403 } 3404 3405 if (keycode != 0) { 3406 if (movement < 0) movement = -movement; 3407 int accelMovement = (int)(movement * accel); 3408 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3409 + " accelMovement=" + accelMovement 3410 + " accel=" + accel); 3411 if (accelMovement > movement) { 3412 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3413 + keycode); 3414 movement--; 3415 int repeatCount = accelMovement - movement; 3416 enqueueInputEvent(new KeyEvent(curTime, curTime, 3417 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3418 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3419 InputDevice.SOURCE_KEYBOARD)); 3420 } 3421 while (movement > 0) { 3422 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3423 + keycode); 3424 movement--; 3425 curTime = SystemClock.uptimeMillis(); 3426 enqueueInputEvent(new KeyEvent(curTime, curTime, 3427 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3428 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3429 InputDevice.SOURCE_KEYBOARD)); 3430 enqueueInputEvent(new KeyEvent(curTime, curTime, 3431 KeyEvent.ACTION_UP, keycode, 0, metaState, 3432 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3433 InputDevice.SOURCE_KEYBOARD)); 3434 } 3435 mLastTrackballTime = curTime; 3436 } 3437 3438 // Unfortunately we can't tell whether the application consumed the keys, so 3439 // we always consider the trackball event handled. 3440 finishInputEvent(q, true); 3441 } 3442 3443 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3444 final MotionEvent event = (MotionEvent)q.mEvent; 3445 if (mInputEventConsistencyVerifier != null) { 3446 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3447 } 3448 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3449 if (LOCAL_LOGV) 3450 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3451 3452 // Dispatch to the IME before propagating down the view hierarchy. 3453 // The IME will eventually call back into handleImeFinishedEvent. 3454 if (mLastWasImTarget) { 3455 InputMethodManager imm = InputMethodManager.peekInstance(); 3456 if (imm != null) { 3457 final int seq = event.getSequenceNumber(); 3458 if (DEBUG_IMF) 3459 Log.v(TAG, "Sending generic motion event to IME: seq=" 3460 + seq + " event=" + event); 3461 imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3462 mInputMethodCallback); 3463 return; 3464 } 3465 } 3466 } 3467 3468 // Not dispatching to IME, continue with post IME actions. 3469 deliverGenericMotionEventPostIme(q); 3470 } 3471 3472 private void deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3473 final MotionEvent event = (MotionEvent) q.mEvent; 3474 final int source = event.getSource(); 3475 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3476 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3477 3478 // If there is no view, then the event will not be handled. 3479 if (mView == null || !mAdded) { 3480 if (isJoystick) { 3481 updateJoystickDirection(event, false); 3482 } else if (isTouchPad) { 3483 //Convert TouchPad motion into a TrackBall event 3484 mSimulatedTrackball.updateTrackballDirection(this, event); 3485 } 3486 finishInputEvent(q, false); 3487 return; 3488 } 3489 3490 // Deliver the event to the view. 3491 if (mView.dispatchGenericMotionEvent(event)) { 3492 if (isJoystick) { 3493 updateJoystickDirection(event, false); 3494 } else if (isTouchPad) { 3495 //Convert TouchPad motion into a TrackBall event 3496 mSimulatedTrackball.updateTrackballDirection(this, event); 3497 } 3498 finishInputEvent(q, true); 3499 return; 3500 } 3501 3502 if (isJoystick) { 3503 // Translate the joystick event into DPAD keys and try to deliver 3504 // those. 3505 updateJoystickDirection(event, true); 3506 finishInputEvent(q, true); 3507 } else if (isTouchPad) { 3508 //Convert TouchPad motion into a TrackBall event 3509 mSimulatedTrackball.updateTrackballDirection(this, event); 3510 finishInputEvent(q, true); 3511 } else { 3512 finishInputEvent(q, false); 3513 } 3514 } 3515 3516 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3517 final long time = event.getEventTime(); 3518 final int metaState = event.getMetaState(); 3519 final int deviceId = event.getDeviceId(); 3520 final int source = event.getSource(); 3521 3522 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3523 if (xDirection == 0) { 3524 xDirection = joystickAxisValueToDirection(event.getX()); 3525 } 3526 3527 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3528 if (yDirection == 0) { 3529 yDirection = joystickAxisValueToDirection(event.getY()); 3530 } 3531 3532 if (xDirection != mLastJoystickXDirection) { 3533 if (mLastJoystickXKeyCode != 0) { 3534 enqueueInputEvent(new KeyEvent(time, time, 3535 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3536 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3537 mLastJoystickXKeyCode = 0; 3538 } 3539 3540 mLastJoystickXDirection = xDirection; 3541 3542 if (xDirection != 0 && synthesizeNewKeys) { 3543 mLastJoystickXKeyCode = xDirection > 0 3544 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3545 enqueueInputEvent(new KeyEvent(time, time, 3546 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3547 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3548 } 3549 } 3550 3551 if (yDirection != mLastJoystickYDirection) { 3552 if (mLastJoystickYKeyCode != 0) { 3553 enqueueInputEvent(new KeyEvent(time, time, 3554 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3555 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3556 mLastJoystickYKeyCode = 0; 3557 } 3558 3559 mLastJoystickYDirection = yDirection; 3560 3561 if (yDirection != 0 && synthesizeNewKeys) { 3562 mLastJoystickYKeyCode = yDirection > 0 3563 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3564 enqueueInputEvent(new KeyEvent(time, time, 3565 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3566 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3567 } 3568 } 3569 } 3570 3571 private static int joystickAxisValueToDirection(float value) { 3572 if (value >= 0.5f) { 3573 return 1; 3574 } else if (value <= -0.5f) { 3575 return -1; 3576 } else { 3577 return 0; 3578 } 3579 } 3580 3581 /** 3582 * Returns true if the key is used for keyboard navigation. 3583 * @param keyEvent The key event. 3584 * @return True if the key is used for keyboard navigation. 3585 */ 3586 private static boolean isNavigationKey(KeyEvent keyEvent) { 3587 switch (keyEvent.getKeyCode()) { 3588 case KeyEvent.KEYCODE_DPAD_LEFT: 3589 case KeyEvent.KEYCODE_DPAD_RIGHT: 3590 case KeyEvent.KEYCODE_DPAD_UP: 3591 case KeyEvent.KEYCODE_DPAD_DOWN: 3592 case KeyEvent.KEYCODE_DPAD_CENTER: 3593 case KeyEvent.KEYCODE_PAGE_UP: 3594 case KeyEvent.KEYCODE_PAGE_DOWN: 3595 case KeyEvent.KEYCODE_MOVE_HOME: 3596 case KeyEvent.KEYCODE_MOVE_END: 3597 case KeyEvent.KEYCODE_TAB: 3598 case KeyEvent.KEYCODE_SPACE: 3599 case KeyEvent.KEYCODE_ENTER: 3600 return true; 3601 } 3602 return false; 3603 } 3604 3605 /** 3606 * Returns true if the key is used for typing. 3607 * @param keyEvent The key event. 3608 * @return True if the key is used for typing. 3609 */ 3610 private static boolean isTypingKey(KeyEvent keyEvent) { 3611 return keyEvent.getUnicodeChar() > 0; 3612 } 3613 3614 /** 3615 * See if the key event means we should leave touch mode (and leave touch mode if so). 3616 * @param event The key event. 3617 * @return Whether this key event should be consumed (meaning the act of 3618 * leaving touch mode alone is considered the event). 3619 */ 3620 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3621 // Only relevant in touch mode. 3622 if (!mAttachInfo.mInTouchMode) { 3623 return false; 3624 } 3625 3626 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3627 final int action = event.getAction(); 3628 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3629 return false; 3630 } 3631 3632 // Don't leave touch mode if the IME told us not to. 3633 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3634 return false; 3635 } 3636 3637 // If the key can be used for keyboard navigation then leave touch mode 3638 // and select a focused view if needed (in ensureTouchMode). 3639 // When a new focused view is selected, we consume the navigation key because 3640 // navigation doesn't make much sense unless a view already has focus so 3641 // the key's purpose is to set focus. 3642 if (isNavigationKey(event)) { 3643 return ensureTouchMode(false); 3644 } 3645 3646 // If the key can be used for typing then leave touch mode 3647 // and select a focused view if needed (in ensureTouchMode). 3648 // Always allow the view to process the typing key. 3649 if (isTypingKey(event)) { 3650 ensureTouchMode(false); 3651 return false; 3652 } 3653 3654 return false; 3655 } 3656 3657 private void deliverKeyEvent(QueuedInputEvent q) { 3658 final KeyEvent event = (KeyEvent)q.mEvent; 3659 if (mInputEventConsistencyVerifier != null) { 3660 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3661 } 3662 3663 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3664 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3665 3666 // Perform predispatching before the IME. 3667 if (mView.dispatchKeyEventPreIme(event)) { 3668 finishInputEvent(q, true); 3669 return; 3670 } 3671 3672 // Dispatch to the IME before propagating down the view hierarchy. 3673 // The IME will eventually call back into handleImeFinishedEvent. 3674 if (mLastWasImTarget) { 3675 InputMethodManager imm = InputMethodManager.peekInstance(); 3676 if (imm != null) { 3677 final int seq = event.getSequenceNumber(); 3678 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3679 + seq + " event=" + event); 3680 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3681 return; 3682 } 3683 } 3684 } 3685 3686 // Not dispatching to IME, continue with post IME actions. 3687 deliverKeyEventPostIme(q); 3688 } 3689 3690 void handleImeFinishedEvent(int seq, boolean handled) { 3691 final QueuedInputEvent q = mCurrentInputEvent; 3692 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3693 if (DEBUG_IMF) { 3694 Log.v(TAG, "IME finished event: seq=" + seq 3695 + " handled=" + handled + " event=" + q); 3696 } 3697 if (handled) { 3698 finishInputEvent(q, true); 3699 } else { 3700 if (q.mEvent instanceof KeyEvent) { 3701 KeyEvent event = (KeyEvent)q.mEvent; 3702 if (event.getAction() != KeyEvent.ACTION_UP) { 3703 // If the window doesn't currently have input focus, then drop 3704 // this event. This could be an event that came back from the 3705 // IME dispatch but the window has lost focus in the meantime. 3706 if (!mAttachInfo.mHasWindowFocus) { 3707 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3708 finishInputEvent(q, true); 3709 return; 3710 } 3711 } 3712 deliverKeyEventPostIme(q); 3713 } else { 3714 MotionEvent event = (MotionEvent)q.mEvent; 3715 if (event.getAction() != MotionEvent.ACTION_CANCEL 3716 && event.getAction() != MotionEvent.ACTION_UP) { 3717 // If the window doesn't currently have input focus, then drop 3718 // this event. This could be an event that came back from the 3719 // IME dispatch but the window has lost focus in the meantime. 3720 if (!mAttachInfo.mHasWindowFocus) { 3721 Slog.w(TAG, "Dropping event due to no window focus: " + event); 3722 finishInputEvent(q, true); 3723 return; 3724 } 3725 } 3726 final int source = q.mEvent.getSource(); 3727 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3728 deliverTrackballEventPostIme(q); 3729 } else { 3730 deliverGenericMotionEventPostIme(q); 3731 } 3732 } 3733 } 3734 } else { 3735 if (DEBUG_IMF) { 3736 Log.v(TAG, "IME finished event: seq=" + seq 3737 + " handled=" + handled + ", event not found!"); 3738 } 3739 } 3740 } 3741 3742 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3743 final KeyEvent event = (KeyEvent)q.mEvent; 3744 3745 // If the view went away, then the event will not be handled. 3746 if (mView == null || !mAdded) { 3747 finishInputEvent(q, false); 3748 return; 3749 } 3750 3751 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3752 if (checkForLeavingTouchModeAndConsume(event)) { 3753 finishInputEvent(q, true); 3754 return; 3755 } 3756 3757 // Make sure the fallback event policy sees all keys that will be delivered to the 3758 // view hierarchy. 3759 mFallbackEventHandler.preDispatchKeyEvent(event); 3760 3761 // Deliver the key to the view hierarchy. 3762 if (mView.dispatchKeyEvent(event)) { 3763 finishInputEvent(q, true); 3764 return; 3765 } 3766 3767 // If the Control modifier is held, try to interpret the key as a shortcut. 3768 if (event.getAction() == KeyEvent.ACTION_DOWN 3769 && event.isCtrlPressed() 3770 && event.getRepeatCount() == 0 3771 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3772 if (mView.dispatchKeyShortcutEvent(event)) { 3773 finishInputEvent(q, true); 3774 return; 3775 } 3776 } 3777 3778 // Apply the fallback event policy. 3779 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3780 finishInputEvent(q, true); 3781 return; 3782 } 3783 3784 // Handle automatic focus changes. 3785 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3786 int direction = 0; 3787 switch (event.getKeyCode()) { 3788 case KeyEvent.KEYCODE_DPAD_LEFT: 3789 if (event.hasNoModifiers()) { 3790 direction = View.FOCUS_LEFT; 3791 } 3792 break; 3793 case KeyEvent.KEYCODE_DPAD_RIGHT: 3794 if (event.hasNoModifiers()) { 3795 direction = View.FOCUS_RIGHT; 3796 } 3797 break; 3798 case KeyEvent.KEYCODE_DPAD_UP: 3799 if (event.hasNoModifiers()) { 3800 direction = View.FOCUS_UP; 3801 } 3802 break; 3803 case KeyEvent.KEYCODE_DPAD_DOWN: 3804 if (event.hasNoModifiers()) { 3805 direction = View.FOCUS_DOWN; 3806 } 3807 break; 3808 case KeyEvent.KEYCODE_TAB: 3809 if (event.hasNoModifiers()) { 3810 direction = View.FOCUS_FORWARD; 3811 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3812 direction = View.FOCUS_BACKWARD; 3813 } 3814 break; 3815 } 3816 if (direction != 0) { 3817 View focused = mView.findFocus(); 3818 if (focused != null) { 3819 View v = focused.focusSearch(direction); 3820 if (v != null && v != focused) { 3821 // do the math the get the interesting rect 3822 // of previous focused into the coord system of 3823 // newly focused view 3824 focused.getFocusedRect(mTempRect); 3825 if (mView instanceof ViewGroup) { 3826 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3827 focused, mTempRect); 3828 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3829 v, mTempRect); 3830 } 3831 if (v.requestFocus(direction, mTempRect)) { 3832 playSoundEffect(SoundEffectConstants 3833 .getContantForFocusDirection(direction)); 3834 finishInputEvent(q, true); 3835 return; 3836 } 3837 } 3838 3839 // Give the focused view a last chance to handle the dpad key. 3840 if (mView.dispatchUnhandledMove(focused, direction)) { 3841 finishInputEvent(q, true); 3842 return; 3843 } 3844 } 3845 } 3846 } 3847 3848 // Key was unhandled. 3849 finishInputEvent(q, false); 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 destroyHardwareRenderer(); 4154 4155 if (mView != null) { 4156 int viewVisibility = mView.getVisibility(); 4157 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4158 if (mWindowAttributesChanged || viewVisibilityChanged) { 4159 // If layout params have been changed, first give them 4160 // to the window manager to make sure it has the correct 4161 // animation info. 4162 try { 4163 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4164 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4165 mWindowSession.finishDrawing(mWindow); 4166 } 4167 } catch (RemoteException e) { 4168 } 4169 } 4170 4171 mSurface.release(); 4172 } 4173 } 4174 4175 mAdded = false; 4176 } 4177 } 4178 4179 public void requestUpdateConfiguration(Configuration config) { 4180 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4181 mHandler.sendMessage(msg); 4182 } 4183 4184 public void loadSystemProperties() { 4185 boolean layout = SystemProperties.getBoolean( 4186 View.DEBUG_LAYOUT_PROPERTY, false); 4187 if (layout != mAttachInfo.mDebugLayout) { 4188 mAttachInfo.mDebugLayout = layout; 4189 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4190 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4191 } 4192 } 4193 } 4194 4195 private void destroyHardwareRenderer() { 4196 AttachInfo attachInfo = mAttachInfo; 4197 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4198 4199 if (hardwareRenderer != null) { 4200 if (mView != null) { 4201 hardwareRenderer.destroyHardwareResources(mView); 4202 } 4203 hardwareRenderer.destroy(true); 4204 hardwareRenderer.setRequested(false); 4205 4206 attachInfo.mHardwareRenderer = null; 4207 attachInfo.mHardwareAccelerated = false; 4208 } 4209 } 4210 4211 void dispatchImeFinishedEvent(int seq, boolean handled) { 4212 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4213 msg.arg1 = seq; 4214 msg.arg2 = handled ? 1 : 0; 4215 msg.setAsynchronous(true); 4216 mHandler.sendMessage(msg); 4217 } 4218 4219 public void dispatchFinishInputConnection(InputConnection connection) { 4220 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4221 mHandler.sendMessage(msg); 4222 } 4223 4224 public void dispatchResized(Rect frame, Rect contentInsets, 4225 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4226 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4227 + " contentInsets=" + contentInsets.toShortString() 4228 + " visibleInsets=" + visibleInsets.toShortString() 4229 + " reportDraw=" + reportDraw); 4230 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4231 if (mTranslator != null) { 4232 mTranslator.translateRectInScreenToAppWindow(frame); 4233 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4234 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4235 } 4236 SomeArgs args = SomeArgs.obtain(); 4237 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4238 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4239 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4240 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4241 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4242 msg.obj = args; 4243 mHandler.sendMessage(msg); 4244 } 4245 4246 public void dispatchMoved(int newX, int newY) { 4247 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4248 if (mTranslator != null) { 4249 PointF point = new PointF(newX, newY); 4250 mTranslator.translatePointInScreenToAppWindow(point); 4251 newX = (int) (point.x + 0.5); 4252 newY = (int) (point.y + 0.5); 4253 } 4254 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4255 mHandler.sendMessage(msg); 4256 } 4257 4258 /** 4259 * Represents a pending input event that is waiting in a queue. 4260 * 4261 * Input events are processed in serial order by the timestamp specified by 4262 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4263 * one input event to the application at a time and waits for the application 4264 * to finish handling it before delivering the next one. 4265 * 4266 * However, because the application or IME can synthesize and inject multiple 4267 * key events at a time without going through the input dispatcher, we end up 4268 * needing a queue on the application's side. 4269 */ 4270 private static final class QueuedInputEvent { 4271 public static final int FLAG_DELIVER_POST_IME = 1; 4272 4273 public QueuedInputEvent mNext; 4274 4275 public InputEvent mEvent; 4276 public InputEventReceiver mReceiver; 4277 public int mFlags; 4278 } 4279 4280 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4281 InputEventReceiver receiver, int flags) { 4282 QueuedInputEvent q = mQueuedInputEventPool; 4283 if (q != null) { 4284 mQueuedInputEventPoolSize -= 1; 4285 mQueuedInputEventPool = q.mNext; 4286 q.mNext = null; 4287 } else { 4288 q = new QueuedInputEvent(); 4289 } 4290 4291 q.mEvent = event; 4292 q.mReceiver = receiver; 4293 q.mFlags = flags; 4294 return q; 4295 } 4296 4297 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4298 q.mEvent = null; 4299 q.mReceiver = null; 4300 4301 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4302 mQueuedInputEventPoolSize += 1; 4303 q.mNext = mQueuedInputEventPool; 4304 mQueuedInputEventPool = q; 4305 } 4306 } 4307 4308 void enqueueInputEvent(InputEvent event) { 4309 enqueueInputEvent(event, null, 0, false); 4310 } 4311 4312 void enqueueInputEvent(InputEvent event, 4313 InputEventReceiver receiver, int flags, boolean processImmediately) { 4314 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4315 4316 // Always enqueue the input event in order, regardless of its time stamp. 4317 // We do this because the application or the IME may inject key events 4318 // in response to touch events and we want to ensure that the injected keys 4319 // are processed in the order they were received and we cannot trust that 4320 // the time stamp of injected events are monotonic. 4321 QueuedInputEvent last = mFirstPendingInputEvent; 4322 if (last == null) { 4323 mFirstPendingInputEvent = q; 4324 } else { 4325 while (last.mNext != null) { 4326 last = last.mNext; 4327 } 4328 last.mNext = q; 4329 } 4330 4331 if (processImmediately) { 4332 doProcessInputEvents(); 4333 } else { 4334 scheduleProcessInputEvents(); 4335 } 4336 } 4337 4338 private void scheduleProcessInputEvents() { 4339 if (!mProcessInputEventsScheduled) { 4340 mProcessInputEventsScheduled = true; 4341 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4342 msg.setAsynchronous(true); 4343 mHandler.sendMessage(msg); 4344 } 4345 } 4346 4347 void doProcessInputEvents() { 4348 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4349 QueuedInputEvent q = mFirstPendingInputEvent; 4350 mFirstPendingInputEvent = q.mNext; 4351 q.mNext = null; 4352 mCurrentInputEvent = q; 4353 deliverInputEvent(q); 4354 } 4355 4356 // We are done processing all input events that we can process right now 4357 // so we can clear the pending flag immediately. 4358 if (mProcessInputEventsScheduled) { 4359 mProcessInputEventsScheduled = false; 4360 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4361 } 4362 } 4363 4364 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4365 if (q != mCurrentInputEvent) { 4366 throw new IllegalStateException("finished input event out of order"); 4367 } 4368 4369 if (q.mReceiver != null) { 4370 q.mReceiver.finishInputEvent(q.mEvent, handled); 4371 } else { 4372 q.mEvent.recycleIfNeededAfterDispatch(); 4373 } 4374 4375 recycleQueuedInputEvent(q); 4376 4377 mCurrentInputEvent = null; 4378 if (mFirstPendingInputEvent != null) { 4379 scheduleProcessInputEvents(); 4380 } 4381 } 4382 4383 void scheduleConsumeBatchedInput() { 4384 if (!mConsumeBatchedInputScheduled) { 4385 mConsumeBatchedInputScheduled = true; 4386 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4387 mConsumedBatchedInputRunnable, null); 4388 } 4389 } 4390 4391 void unscheduleConsumeBatchedInput() { 4392 if (mConsumeBatchedInputScheduled) { 4393 mConsumeBatchedInputScheduled = false; 4394 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4395 mConsumedBatchedInputRunnable, null); 4396 } 4397 } 4398 4399 void doConsumeBatchedInput(long frameTimeNanos) { 4400 if (mConsumeBatchedInputScheduled) { 4401 mConsumeBatchedInputScheduled = false; 4402 if (mInputEventReceiver != null) { 4403 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4404 } 4405 doProcessInputEvents(); 4406 } 4407 } 4408 4409 final class TraversalRunnable implements Runnable { 4410 @Override 4411 public void run() { 4412 doTraversal(); 4413 } 4414 } 4415 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4416 4417 final class WindowInputEventReceiver extends InputEventReceiver { 4418 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4419 super(inputChannel, looper); 4420 } 4421 4422 @Override 4423 public void onInputEvent(InputEvent event) { 4424 enqueueInputEvent(event, this, 0, true); 4425 } 4426 4427 @Override 4428 public void onBatchedInputEventPending() { 4429 scheduleConsumeBatchedInput(); 4430 } 4431 4432 @Override 4433 public void dispose() { 4434 unscheduleConsumeBatchedInput(); 4435 super.dispose(); 4436 } 4437 } 4438 WindowInputEventReceiver mInputEventReceiver; 4439 4440 final class ConsumeBatchedInputRunnable implements Runnable { 4441 @Override 4442 public void run() { 4443 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4444 } 4445 } 4446 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4447 new ConsumeBatchedInputRunnable(); 4448 boolean mConsumeBatchedInputScheduled; 4449 4450 final class InvalidateOnAnimationRunnable implements Runnable { 4451 private boolean mPosted; 4452 private ArrayList<View> mViews = new ArrayList<View>(); 4453 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4454 new ArrayList<AttachInfo.InvalidateInfo>(); 4455 private View[] mTempViews; 4456 private AttachInfo.InvalidateInfo[] mTempViewRects; 4457 4458 public void addView(View view) { 4459 synchronized (this) { 4460 mViews.add(view); 4461 postIfNeededLocked(); 4462 } 4463 } 4464 4465 public void addViewRect(AttachInfo.InvalidateInfo info) { 4466 synchronized (this) { 4467 mViewRects.add(info); 4468 postIfNeededLocked(); 4469 } 4470 } 4471 4472 public void removeView(View view) { 4473 synchronized (this) { 4474 mViews.remove(view); 4475 4476 for (int i = mViewRects.size(); i-- > 0; ) { 4477 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4478 if (info.target == view) { 4479 mViewRects.remove(i); 4480 info.recycle(); 4481 } 4482 } 4483 4484 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4485 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4486 mPosted = false; 4487 } 4488 } 4489 } 4490 4491 @Override 4492 public void run() { 4493 final int viewCount; 4494 final int viewRectCount; 4495 synchronized (this) { 4496 mPosted = false; 4497 4498 viewCount = mViews.size(); 4499 if (viewCount != 0) { 4500 mTempViews = mViews.toArray(mTempViews != null 4501 ? mTempViews : new View[viewCount]); 4502 mViews.clear(); 4503 } 4504 4505 viewRectCount = mViewRects.size(); 4506 if (viewRectCount != 0) { 4507 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4508 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4509 mViewRects.clear(); 4510 } 4511 } 4512 4513 for (int i = 0; i < viewCount; i++) { 4514 mTempViews[i].invalidate(); 4515 mTempViews[i] = null; 4516 } 4517 4518 for (int i = 0; i < viewRectCount; i++) { 4519 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4520 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4521 info.recycle(); 4522 } 4523 } 4524 4525 private void postIfNeededLocked() { 4526 if (!mPosted) { 4527 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4528 mPosted = true; 4529 } 4530 } 4531 } 4532 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4533 new InvalidateOnAnimationRunnable(); 4534 4535 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4536 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4537 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4538 } 4539 4540 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4541 long delayMilliseconds) { 4542 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4543 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4544 } 4545 4546 public void dispatchInvalidateOnAnimation(View view) { 4547 mInvalidateOnAnimationRunnable.addView(view); 4548 } 4549 4550 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4551 mInvalidateOnAnimationRunnable.addViewRect(info); 4552 } 4553 4554 public void enqueueDisplayList(DisplayList displayList) { 4555 mDisplayLists.add(displayList); 4556 4557 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4558 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4559 mHandler.sendMessage(msg); 4560 } 4561 4562 public void dequeueDisplayList(DisplayList displayList) { 4563 if (mDisplayLists.remove(displayList)) { 4564 displayList.invalidate(); 4565 if (mDisplayLists.size() == 0) { 4566 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4567 } 4568 } 4569 } 4570 4571 public void cancelInvalidate(View view) { 4572 mHandler.removeMessages(MSG_INVALIDATE, view); 4573 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4574 // them to the pool 4575 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4576 mInvalidateOnAnimationRunnable.removeView(view); 4577 } 4578 4579 public void dispatchKey(KeyEvent event) { 4580 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4581 msg.setAsynchronous(true); 4582 mHandler.sendMessage(msg); 4583 } 4584 4585 public void dispatchKeyFromIme(KeyEvent event) { 4586 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4587 msg.setAsynchronous(true); 4588 mHandler.sendMessage(msg); 4589 } 4590 4591 public void dispatchUnhandledKey(KeyEvent event) { 4592 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4593 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4594 final int keyCode = event.getKeyCode(); 4595 final int metaState = event.getMetaState(); 4596 4597 // Check for fallback actions specified by the key character map. 4598 KeyCharacterMap.FallbackAction fallbackAction = 4599 kcm.getFallbackAction(keyCode, metaState); 4600 if (fallbackAction != null) { 4601 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4602 KeyEvent fallbackEvent = KeyEvent.obtain( 4603 event.getDownTime(), event.getEventTime(), 4604 event.getAction(), fallbackAction.keyCode, 4605 event.getRepeatCount(), fallbackAction.metaState, 4606 event.getDeviceId(), event.getScanCode(), 4607 flags, event.getSource(), null); 4608 fallbackAction.recycle(); 4609 4610 dispatchKey(fallbackEvent); 4611 } 4612 } 4613 } 4614 4615 public void dispatchAppVisibility(boolean visible) { 4616 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4617 msg.arg1 = visible ? 1 : 0; 4618 mHandler.sendMessage(msg); 4619 } 4620 4621 public void dispatchScreenStateChange(boolean on) { 4622 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4623 msg.arg1 = on ? 1 : 0; 4624 mHandler.sendMessage(msg); 4625 } 4626 4627 public void dispatchGetNewSurface() { 4628 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4629 mHandler.sendMessage(msg); 4630 } 4631 4632 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4633 Message msg = Message.obtain(); 4634 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4635 msg.arg1 = hasFocus ? 1 : 0; 4636 msg.arg2 = inTouchMode ? 1 : 0; 4637 mHandler.sendMessage(msg); 4638 } 4639 4640 public void dispatchCloseSystemDialogs(String reason) { 4641 Message msg = Message.obtain(); 4642 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4643 msg.obj = reason; 4644 mHandler.sendMessage(msg); 4645 } 4646 4647 public void dispatchDragEvent(DragEvent event) { 4648 final int what; 4649 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4650 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4651 mHandler.removeMessages(what); 4652 } else { 4653 what = MSG_DISPATCH_DRAG_EVENT; 4654 } 4655 Message msg = mHandler.obtainMessage(what, event); 4656 mHandler.sendMessage(msg); 4657 } 4658 4659 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4660 int localValue, int localChanges) { 4661 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4662 args.seq = seq; 4663 args.globalVisibility = globalVisibility; 4664 args.localValue = localValue; 4665 args.localChanges = localChanges; 4666 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4667 } 4668 4669 public void dispatchDoneAnimating() { 4670 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4671 } 4672 4673 public void dispatchCheckFocus() { 4674 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4675 // This will result in a call to checkFocus() below. 4676 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4677 } 4678 } 4679 4680 /** 4681 * Post a callback to send a 4682 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4683 * This event is send at most once every 4684 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4685 */ 4686 private void postSendWindowContentChangedCallback(View source) { 4687 if (mSendWindowContentChangedAccessibilityEvent == null) { 4688 mSendWindowContentChangedAccessibilityEvent = 4689 new SendWindowContentChangedAccessibilityEvent(); 4690 } 4691 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4692 if (oldSource == null) { 4693 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4694 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4695 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4696 } else { 4697 mSendWindowContentChangedAccessibilityEvent.mSource = 4698 getCommonPredecessor(oldSource, source); 4699 } 4700 } 4701 4702 /** 4703 * Remove a posted callback to send a 4704 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4705 */ 4706 private void removeSendWindowContentChangedCallback() { 4707 if (mSendWindowContentChangedAccessibilityEvent != null) { 4708 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4709 } 4710 } 4711 4712 public boolean showContextMenuForChild(View originalView) { 4713 return false; 4714 } 4715 4716 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4717 return null; 4718 } 4719 4720 public void createContextMenu(ContextMenu menu) { 4721 } 4722 4723 public void childDrawableStateChanged(View child) { 4724 } 4725 4726 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4727 if (mView == null) { 4728 return false; 4729 } 4730 // Intercept accessibility focus events fired by virtual nodes to keep 4731 // track of accessibility focus position in such nodes. 4732 final int eventType = event.getEventType(); 4733 switch (eventType) { 4734 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4735 final long sourceNodeId = event.getSourceNodeId(); 4736 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4737 sourceNodeId); 4738 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4739 if (source != null) { 4740 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4741 if (provider != null) { 4742 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4743 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4744 setAccessibilityFocus(source, node); 4745 } 4746 } 4747 } break; 4748 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4749 final long sourceNodeId = event.getSourceNodeId(); 4750 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4751 sourceNodeId); 4752 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4753 if (source != null) { 4754 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4755 if (provider != null) { 4756 setAccessibilityFocus(null, null); 4757 } 4758 } 4759 } break; 4760 } 4761 mAccessibilityManager.sendAccessibilityEvent(event); 4762 return true; 4763 } 4764 4765 @Override 4766 public void childAccessibilityStateChanged(View child) { 4767 postSendWindowContentChangedCallback(child); 4768 } 4769 4770 private View getCommonPredecessor(View first, View second) { 4771 if (mAttachInfo != null) { 4772 if (mTempHashSet == null) { 4773 mTempHashSet = new HashSet<View>(); 4774 } 4775 HashSet<View> seen = mTempHashSet; 4776 seen.clear(); 4777 View firstCurrent = first; 4778 while (firstCurrent != null) { 4779 seen.add(firstCurrent); 4780 ViewParent firstCurrentParent = firstCurrent.mParent; 4781 if (firstCurrentParent instanceof View) { 4782 firstCurrent = (View) firstCurrentParent; 4783 } else { 4784 firstCurrent = null; 4785 } 4786 } 4787 View secondCurrent = second; 4788 while (secondCurrent != null) { 4789 if (seen.contains(secondCurrent)) { 4790 seen.clear(); 4791 return secondCurrent; 4792 } 4793 ViewParent secondCurrentParent = secondCurrent.mParent; 4794 if (secondCurrentParent instanceof View) { 4795 secondCurrent = (View) secondCurrentParent; 4796 } else { 4797 secondCurrent = null; 4798 } 4799 } 4800 seen.clear(); 4801 } 4802 return null; 4803 } 4804 4805 void checkThread() { 4806 if (mThread != Thread.currentThread()) { 4807 throw new CalledFromWrongThreadException( 4808 "Only the original thread that created a view hierarchy can touch its views."); 4809 } 4810 } 4811 4812 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4813 // ViewAncestor never intercepts touch event, so this can be a no-op 4814 } 4815 4816 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4817 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4818 if (rectangle != null) { 4819 mTempRect.set(rectangle); 4820 mTempRect.offset(0, -mCurScrollY); 4821 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4822 try { 4823 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4824 } catch (RemoteException re) { 4825 /* ignore */ 4826 } 4827 } 4828 return scrolled; 4829 } 4830 4831 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4832 // Do nothing. 4833 } 4834 4835 class TakenSurfaceHolder extends BaseSurfaceHolder { 4836 @Override 4837 public boolean onAllowLockCanvas() { 4838 return mDrawingAllowed; 4839 } 4840 4841 @Override 4842 public void onRelayoutContainer() { 4843 // Not currently interesting -- from changing between fixed and layout size. 4844 } 4845 4846 public void setFormat(int format) { 4847 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4848 } 4849 4850 public void setType(int type) { 4851 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4852 } 4853 4854 @Override 4855 public void onUpdateSurface() { 4856 // We take care of format and type changes on our own. 4857 throw new IllegalStateException("Shouldn't be here"); 4858 } 4859 4860 public boolean isCreating() { 4861 return mIsCreating; 4862 } 4863 4864 @Override 4865 public void setFixedSize(int width, int height) { 4866 throw new UnsupportedOperationException( 4867 "Currently only support sizing from layout"); 4868 } 4869 4870 public void setKeepScreenOn(boolean screenOn) { 4871 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4872 } 4873 } 4874 4875 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4876 private WeakReference<ViewRootImpl> mViewAncestor; 4877 4878 public InputMethodCallback(ViewRootImpl viewAncestor) { 4879 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4880 } 4881 4882 @Override 4883 public void finishedEvent(int seq, boolean handled) { 4884 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4885 if (viewAncestor != null) { 4886 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4887 } 4888 } 4889 } 4890 4891 static class W extends IWindow.Stub { 4892 private final WeakReference<ViewRootImpl> mViewAncestor; 4893 private final IWindowSession mWindowSession; 4894 4895 W(ViewRootImpl viewAncestor) { 4896 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4897 mWindowSession = viewAncestor.mWindowSession; 4898 } 4899 4900 public void resized(Rect frame, Rect contentInsets, 4901 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4902 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4903 if (viewAncestor != null) { 4904 viewAncestor.dispatchResized(frame, contentInsets, 4905 visibleInsets, reportDraw, newConfig); 4906 } 4907 } 4908 4909 @Override 4910 public void moved(int newX, int newY) { 4911 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4912 if (viewAncestor != null) { 4913 viewAncestor.dispatchMoved(newX, newY); 4914 } 4915 } 4916 4917 public void dispatchAppVisibility(boolean visible) { 4918 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4919 if (viewAncestor != null) { 4920 viewAncestor.dispatchAppVisibility(visible); 4921 } 4922 } 4923 4924 public void dispatchScreenState(boolean on) { 4925 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4926 if (viewAncestor != null) { 4927 viewAncestor.dispatchScreenStateChange(on); 4928 } 4929 } 4930 4931 public void dispatchGetNewSurface() { 4932 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4933 if (viewAncestor != null) { 4934 viewAncestor.dispatchGetNewSurface(); 4935 } 4936 } 4937 4938 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4939 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4940 if (viewAncestor != null) { 4941 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4942 } 4943 } 4944 4945 private static int checkCallingPermission(String permission) { 4946 try { 4947 return ActivityManagerNative.getDefault().checkPermission( 4948 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4949 } catch (RemoteException e) { 4950 return PackageManager.PERMISSION_DENIED; 4951 } 4952 } 4953 4954 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4955 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4956 if (viewAncestor != null) { 4957 final View view = viewAncestor.mView; 4958 if (view != null) { 4959 if (checkCallingPermission(Manifest.permission.DUMP) != 4960 PackageManager.PERMISSION_GRANTED) { 4961 throw new SecurityException("Insufficient permissions to invoke" 4962 + " executeCommand() from pid=" + Binder.getCallingPid() 4963 + ", uid=" + Binder.getCallingUid()); 4964 } 4965 4966 OutputStream clientStream = null; 4967 try { 4968 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4969 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4970 } catch (IOException e) { 4971 e.printStackTrace(); 4972 } finally { 4973 if (clientStream != null) { 4974 try { 4975 clientStream.close(); 4976 } catch (IOException e) { 4977 e.printStackTrace(); 4978 } 4979 } 4980 } 4981 } 4982 } 4983 } 4984 4985 public void closeSystemDialogs(String reason) { 4986 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4987 if (viewAncestor != null) { 4988 viewAncestor.dispatchCloseSystemDialogs(reason); 4989 } 4990 } 4991 4992 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4993 boolean sync) { 4994 if (sync) { 4995 try { 4996 mWindowSession.wallpaperOffsetsComplete(asBinder()); 4997 } catch (RemoteException e) { 4998 } 4999 } 5000 } 5001 5002 public void dispatchWallpaperCommand(String action, int x, int y, 5003 int z, Bundle extras, boolean sync) { 5004 if (sync) { 5005 try { 5006 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5007 } catch (RemoteException e) { 5008 } 5009 } 5010 } 5011 5012 /* Drag/drop */ 5013 public void dispatchDragEvent(DragEvent event) { 5014 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5015 if (viewAncestor != null) { 5016 viewAncestor.dispatchDragEvent(event); 5017 } 5018 } 5019 5020 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5021 int localValue, int localChanges) { 5022 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5023 if (viewAncestor != null) { 5024 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5025 localValue, localChanges); 5026 } 5027 } 5028 5029 public void doneAnimating() { 5030 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5031 if (viewAncestor != null) { 5032 viewAncestor.dispatchDoneAnimating(); 5033 } 5034 } 5035 } 5036 5037 /** 5038 * Maintains state information for a single trackball axis, generating 5039 * discrete (DPAD) movements based on raw trackball motion. 5040 */ 5041 static final class TrackballAxis { 5042 /** 5043 * The maximum amount of acceleration we will apply. 5044 */ 5045 static final float MAX_ACCELERATION = 20; 5046 5047 /** 5048 * The maximum amount of time (in milliseconds) between events in order 5049 * for us to consider the user to be doing fast trackball movements, 5050 * and thus apply an acceleration. 5051 */ 5052 static final long FAST_MOVE_TIME = 150; 5053 5054 /** 5055 * Scaling factor to the time (in milliseconds) between events to how 5056 * much to multiple/divide the current acceleration. When movement 5057 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5058 * FAST_MOVE_TIME it divides it. 5059 */ 5060 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5061 5062 float position; 5063 float absPosition; 5064 float acceleration = 1; 5065 long lastMoveTime = 0; 5066 int step; 5067 int dir; 5068 int nonAccelMovement; 5069 5070 void reset(int _step) { 5071 position = 0; 5072 acceleration = 1; 5073 lastMoveTime = 0; 5074 step = _step; 5075 dir = 0; 5076 } 5077 5078 /** 5079 * Add trackball movement into the state. If the direction of movement 5080 * has been reversed, the state is reset before adding the 5081 * movement (so that you don't have to compensate for any previously 5082 * collected movement before see the result of the movement in the 5083 * new direction). 5084 * 5085 * @return Returns the absolute value of the amount of movement 5086 * collected so far. 5087 */ 5088 float collect(float off, long time, String axis) { 5089 long normTime; 5090 if (off > 0) { 5091 normTime = (long)(off * FAST_MOVE_TIME); 5092 if (dir < 0) { 5093 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5094 position = 0; 5095 step = 0; 5096 acceleration = 1; 5097 lastMoveTime = 0; 5098 } 5099 dir = 1; 5100 } else if (off < 0) { 5101 normTime = (long)((-off) * FAST_MOVE_TIME); 5102 if (dir > 0) { 5103 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5104 position = 0; 5105 step = 0; 5106 acceleration = 1; 5107 lastMoveTime = 0; 5108 } 5109 dir = -1; 5110 } else { 5111 normTime = 0; 5112 } 5113 5114 // The number of milliseconds between each movement that is 5115 // considered "normal" and will not result in any acceleration 5116 // or deceleration, scaled by the offset we have here. 5117 if (normTime > 0) { 5118 long delta = time - lastMoveTime; 5119 lastMoveTime = time; 5120 float acc = acceleration; 5121 if (delta < normTime) { 5122 // The user is scrolling rapidly, so increase acceleration. 5123 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5124 if (scale > 1) acc *= scale; 5125 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5126 + off + " normTime=" + normTime + " delta=" + delta 5127 + " scale=" + scale + " acc=" + acc); 5128 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5129 } else { 5130 // The user is scrolling slowly, so decrease acceleration. 5131 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5132 if (scale > 1) acc /= scale; 5133 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5134 + off + " normTime=" + normTime + " delta=" + delta 5135 + " scale=" + scale + " acc=" + acc); 5136 acceleration = acc > 1 ? acc : 1; 5137 } 5138 } 5139 position += off; 5140 return (absPosition = Math.abs(position)); 5141 } 5142 5143 /** 5144 * Generate the number of discrete movement events appropriate for 5145 * the currently collected trackball movement. 5146 * 5147 * @param precision The minimum movement required to generate the 5148 * first discrete movement. 5149 * 5150 * @return Returns the number of discrete movements, either positive 5151 * or negative, or 0 if there is not enough trackball movement yet 5152 * for a discrete movement. 5153 */ 5154 int generate(float precision) { 5155 int movement = 0; 5156 nonAccelMovement = 0; 5157 do { 5158 final int dir = position >= 0 ? 1 : -1; 5159 switch (step) { 5160 // If we are going to execute the first step, then we want 5161 // to do this as soon as possible instead of waiting for 5162 // a full movement, in order to make things look responsive. 5163 case 0: 5164 if (absPosition < precision) { 5165 return movement; 5166 } 5167 movement += dir; 5168 nonAccelMovement += dir; 5169 step = 1; 5170 break; 5171 // If we have generated the first movement, then we need 5172 // to wait for the second complete trackball motion before 5173 // generating the second discrete movement. 5174 case 1: 5175 if (absPosition < 2) { 5176 return movement; 5177 } 5178 movement += dir; 5179 nonAccelMovement += dir; 5180 position += dir > 0 ? -2 : 2; 5181 absPosition = Math.abs(position); 5182 step = 2; 5183 break; 5184 // After the first two, we generate discrete movements 5185 // consistently with the trackball, applying an acceleration 5186 // if the trackball is moving quickly. This is a simple 5187 // acceleration on top of what we already compute based 5188 // on how quickly the wheel is being turned, to apply 5189 // a longer increasing acceleration to continuous movement 5190 // in one direction. 5191 default: 5192 if (absPosition < 1) { 5193 return movement; 5194 } 5195 movement += dir; 5196 position += dir >= 0 ? -1 : 1; 5197 absPosition = Math.abs(position); 5198 float acc = acceleration; 5199 acc *= 1.1f; 5200 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5201 break; 5202 } 5203 } while (true); 5204 } 5205 } 5206 5207 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5208 public CalledFromWrongThreadException(String msg) { 5209 super(msg); 5210 } 5211 } 5212 5213 private SurfaceHolder mHolder = new SurfaceHolder() { 5214 // we only need a SurfaceHolder for opengl. it would be nice 5215 // to implement everything else though, especially the callback 5216 // support (opengl doesn't make use of it right now, but eventually 5217 // will). 5218 public Surface getSurface() { 5219 return mSurface; 5220 } 5221 5222 public boolean isCreating() { 5223 return false; 5224 } 5225 5226 public void addCallback(Callback callback) { 5227 } 5228 5229 public void removeCallback(Callback callback) { 5230 } 5231 5232 public void setFixedSize(int width, int height) { 5233 } 5234 5235 public void setSizeFromLayout() { 5236 } 5237 5238 public void setFormat(int format) { 5239 } 5240 5241 public void setType(int type) { 5242 } 5243 5244 public void setKeepScreenOn(boolean screenOn) { 5245 } 5246 5247 public Canvas lockCanvas() { 5248 return null; 5249 } 5250 5251 public Canvas lockCanvas(Rect dirty) { 5252 return null; 5253 } 5254 5255 public void unlockCanvasAndPost(Canvas canvas) { 5256 } 5257 public Rect getSurfaceFrame() { 5258 return null; 5259 } 5260 }; 5261 5262 static RunQueue getRunQueue() { 5263 RunQueue rq = sRunQueues.get(); 5264 if (rq != null) { 5265 return rq; 5266 } 5267 rq = new RunQueue(); 5268 sRunQueues.set(rq); 5269 return rq; 5270 } 5271 5272 /** 5273 * The run queue is used to enqueue pending work from Views when no Handler is 5274 * attached. The work is executed during the next call to performTraversals on 5275 * the thread. 5276 * @hide 5277 */ 5278 static final class RunQueue { 5279 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5280 5281 void post(Runnable action) { 5282 postDelayed(action, 0); 5283 } 5284 5285 void postDelayed(Runnable action, long delayMillis) { 5286 HandlerAction handlerAction = new HandlerAction(); 5287 handlerAction.action = action; 5288 handlerAction.delay = delayMillis; 5289 5290 synchronized (mActions) { 5291 mActions.add(handlerAction); 5292 } 5293 } 5294 5295 void removeCallbacks(Runnable action) { 5296 final HandlerAction handlerAction = new HandlerAction(); 5297 handlerAction.action = action; 5298 5299 synchronized (mActions) { 5300 final ArrayList<HandlerAction> actions = mActions; 5301 5302 while (actions.remove(handlerAction)) { 5303 // Keep going 5304 } 5305 } 5306 } 5307 5308 void executeActions(Handler handler) { 5309 synchronized (mActions) { 5310 final ArrayList<HandlerAction> actions = mActions; 5311 final int count = actions.size(); 5312 5313 for (int i = 0; i < count; i++) { 5314 final HandlerAction handlerAction = actions.get(i); 5315 handler.postDelayed(handlerAction.action, handlerAction.delay); 5316 } 5317 5318 actions.clear(); 5319 } 5320 } 5321 5322 private static class HandlerAction { 5323 Runnable action; 5324 long delay; 5325 5326 @Override 5327 public boolean equals(Object o) { 5328 if (this == o) return true; 5329 if (o == null || getClass() != o.getClass()) return false; 5330 5331 HandlerAction that = (HandlerAction) o; 5332 return !(action != null ? !action.equals(that.action) : that.action != null); 5333 5334 } 5335 5336 @Override 5337 public int hashCode() { 5338 int result = action != null ? action.hashCode() : 0; 5339 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5340 return result; 5341 } 5342 } 5343 } 5344 5345 /** 5346 * Class for managing the accessibility interaction connection 5347 * based on the global accessibility state. 5348 */ 5349 final class AccessibilityInteractionConnectionManager 5350 implements AccessibilityStateChangeListener { 5351 public void onAccessibilityStateChanged(boolean enabled) { 5352 if (enabled) { 5353 ensureConnection(); 5354 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5355 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5356 View focusedView = mView.findFocus(); 5357 if (focusedView != null && focusedView != mView) { 5358 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5359 } 5360 } 5361 } else { 5362 ensureNoConnection(); 5363 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5364 } 5365 } 5366 5367 public void ensureConnection() { 5368 if (mAttachInfo != null) { 5369 final boolean registered = 5370 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5371 if (!registered) { 5372 mAttachInfo.mAccessibilityWindowId = 5373 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5374 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5375 } 5376 } 5377 } 5378 5379 public void ensureNoConnection() { 5380 final boolean registered = 5381 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5382 if (registered) { 5383 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5384 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5385 } 5386 } 5387 } 5388 5389 /** 5390 * This class is an interface this ViewAncestor provides to the 5391 * AccessibilityManagerService to the latter can interact with 5392 * the view hierarchy in this ViewAncestor. 5393 */ 5394 static final class AccessibilityInteractionConnection 5395 extends IAccessibilityInteractionConnection.Stub { 5396 private final WeakReference<ViewRootImpl> mViewRootImpl; 5397 5398 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5399 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5400 } 5401 5402 @Override 5403 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5404 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5405 int interrogatingPid, long interrogatingTid) { 5406 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5407 if (viewRootImpl != null && viewRootImpl.mView != null) { 5408 viewRootImpl.getAccessibilityInteractionController() 5409 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5410 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5411 } else { 5412 // We cannot make the call and notify the caller so it does not wait. 5413 try { 5414 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5415 } catch (RemoteException re) { 5416 /* best effort - ignore */ 5417 } 5418 } 5419 } 5420 5421 @Override 5422 public void performAccessibilityAction(long accessibilityNodeId, int action, 5423 Bundle arguments, int interactionId, 5424 IAccessibilityInteractionConnectionCallback callback, int flags, 5425 int interogatingPid, long interrogatingTid) { 5426 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5427 if (viewRootImpl != null && viewRootImpl.mView != null) { 5428 viewRootImpl.getAccessibilityInteractionController() 5429 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5430 interactionId, callback, flags, interogatingPid, interrogatingTid); 5431 } else { 5432 // We cannot make the call and notify the caller so it does not wait. 5433 try { 5434 callback.setPerformAccessibilityActionResult(false, interactionId); 5435 } catch (RemoteException re) { 5436 /* best effort - ignore */ 5437 } 5438 } 5439 } 5440 5441 @Override 5442 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5443 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5444 int interrogatingPid, long interrogatingTid) { 5445 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5446 if (viewRootImpl != null && viewRootImpl.mView != null) { 5447 viewRootImpl.getAccessibilityInteractionController() 5448 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5449 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5450 } else { 5451 // We cannot make the call and notify the caller so it does not wait. 5452 try { 5453 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5454 } catch (RemoteException re) { 5455 /* best effort - ignore */ 5456 } 5457 } 5458 } 5459 5460 @Override 5461 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5462 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5463 int interrogatingPid, long interrogatingTid) { 5464 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5465 if (viewRootImpl != null && viewRootImpl.mView != null) { 5466 viewRootImpl.getAccessibilityInteractionController() 5467 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5468 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5469 } else { 5470 // We cannot make the call and notify the caller so it does not wait. 5471 try { 5472 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5473 } catch (RemoteException re) { 5474 /* best effort - ignore */ 5475 } 5476 } 5477 } 5478 5479 @Override 5480 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5481 IAccessibilityInteractionConnectionCallback callback, int flags, 5482 int interrogatingPid, long interrogatingTid) { 5483 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5484 if (viewRootImpl != null && viewRootImpl.mView != null) { 5485 viewRootImpl.getAccessibilityInteractionController() 5486 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5487 flags, interrogatingPid, interrogatingTid); 5488 } else { 5489 // We cannot make the call and notify the caller so it does not wait. 5490 try { 5491 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5492 } catch (RemoteException re) { 5493 /* best effort - ignore */ 5494 } 5495 } 5496 } 5497 5498 @Override 5499 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5500 IAccessibilityInteractionConnectionCallback callback, int flags, 5501 int interrogatingPid, long interrogatingTid) { 5502 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5503 if (viewRootImpl != null && viewRootImpl.mView != null) { 5504 viewRootImpl.getAccessibilityInteractionController() 5505 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5506 callback, flags, interrogatingPid, interrogatingTid); 5507 } else { 5508 // We cannot make the call and notify the caller so it does not wait. 5509 try { 5510 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5511 } catch (RemoteException re) { 5512 /* best effort - ignore */ 5513 } 5514 } 5515 } 5516 } 5517 5518 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5519 public View mSource; 5520 5521 public void run() { 5522 if (mSource != null) { 5523 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5524 mSource.resetAccessibilityStateChanged(); 5525 mSource = null; 5526 } 5527 } 5528 } 5529} 5530