ViewRootImpl.java revision ef35927abcd089652f87a985dd6dde7afde58b92
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 129 130 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 131 static boolean sFirstDrawComplete = false; 132 133 static final ArrayList<ComponentCallbacks> sConfigCallbacks 134 = new ArrayList<ComponentCallbacks>(); 135 136 private static boolean sUseRenderThread = false; 137 private static boolean sRenderThreadQueried = false; 138 private static final Object[] sRenderThreadQueryLock = new Object[0]; 139 140 final IWindowSession mWindowSession; 141 final Display mDisplay; 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 final SimulatedDpad mSimulatedDpad; 148 149 int mLastJoystickXDirection; 150 int mLastJoystickYDirection; 151 int mLastJoystickXKeyCode; 152 int mLastJoystickYKeyCode; 153 154 final int[] mTmpLocation = new int[2]; 155 156 final TypedValue mTmpValue = new TypedValue(); 157 158 final InputMethodCallback mInputMethodCallback; 159 final Thread mThread; 160 161 final WindowLeaked mLocation; 162 163 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 164 165 final W mWindow; 166 167 final int mTargetSdkVersion; 168 169 int mSeq; 170 171 View mView; 172 173 View mAccessibilityFocusedHost; 174 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 175 176 int mViewVisibility; 177 boolean mAppVisible = true; 178 int mOrigWindowType = -1; 179 180 // Set to true if the owner of this window is in the stopped state, 181 // so the window should no longer be active. 182 boolean mStopped = false; 183 184 boolean mLastInCompatMode = false; 185 186 SurfaceHolder.Callback2 mSurfaceHolderCallback; 187 BaseSurfaceHolder mSurfaceHolder; 188 boolean mIsCreating; 189 boolean mDrawingAllowed; 190 191 final Region mTransparentRegion; 192 final Region mPreviousTransparentRegion; 193 194 int mWidth; 195 int mHeight; 196 Rect mDirty; 197 final Rect mCurrentDirty = new Rect(); 198 final Rect mPreviousDirty = new Rect(); 199 boolean mIsAnimating; 200 201 CompatibilityInfo.Translator mTranslator; 202 203 final View.AttachInfo mAttachInfo; 204 InputChannel mInputChannel; 205 InputQueue.Callback mInputQueueCallback; 206 InputQueue mInputQueue; 207 FallbackEventHandler mFallbackEventHandler; 208 Choreographer mChoreographer; 209 210 final Rect mTempRect; // used in the transaction to not thrash the heap. 211 final Rect mVisRect; // used to retrieve visible rect of focused view. 212 213 boolean mTraversalScheduled; 214 int mTraversalBarrier; 215 boolean mWillDrawSoon; 216 /** Set to true while in performTraversals for detecting when die(true) is called from internal 217 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 218 boolean mIsInTraversal; 219 boolean mFitSystemWindowsRequested; 220 boolean mLayoutRequested; 221 boolean mFirst; 222 boolean mReportNextDraw; 223 boolean mFullRedrawNeeded; 224 boolean mNewSurfaceNeeded; 225 boolean mHasHadWindowFocus; 226 boolean mLastWasImTarget; 227 boolean mWindowsAnimating; 228 boolean mIsDrawing; 229 int mLastSystemUiVisibility; 230 int mClientWindowLayoutFlags; 231 232 /** @hide */ 233 public static final int EVENT_NOT_HANDLED = 0; 234 /** @hide */ 235 public static final int EVENT_HANDLED = 1; 236 /** @hide */ 237 public static final int EVENT_IN_PROGRESS = 2; 238 239 // Pool of queued input events. 240 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 241 private QueuedInputEvent mQueuedInputEventPool; 242 private int mQueuedInputEventPoolSize; 243 244 // Input event queue. 245 QueuedInputEvent mFirstPendingInputEvent; 246 QueuedInputEvent mCurrentInputEvent; 247 boolean mProcessInputEventsScheduled; 248 249 boolean mWindowAttributesChanged = false; 250 int mWindowAttributesChangesFlag = 0; 251 252 // These can be accessed by any thread, must be protected with a lock. 253 // Surface can never be reassigned or cleared (use Surface.clear()). 254 private final Surface mSurface = new Surface(); 255 256 boolean mAdded; 257 boolean mAddedTouchMode; 258 259 final CompatibilityInfoHolder mCompatibilityInfo; 260 261 // These are accessed by multiple threads. 262 final Rect mWinFrame; // frame given by window manager. 263 264 final Rect mPendingVisibleInsets = new Rect(); 265 final Rect mPendingContentInsets = new Rect(); 266 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 267 = new ViewTreeObserver.InternalInsetsInfo(); 268 269 final Rect mFitSystemWindowsInsets = new Rect(); 270 271 final Configuration mLastConfiguration = new Configuration(); 272 final Configuration mPendingConfiguration = new Configuration(); 273 274 boolean mScrollMayChange; 275 int mSoftInputMode; 276 WeakReference<View> mLastScrolledFocus; 277 int mScrollY; 278 int mCurScrollY; 279 Scroller mScroller; 280 HardwareLayer mResizeBuffer; 281 long mResizeBufferStartTime; 282 int mResizeBufferDuration; 283 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 284 private ArrayList<LayoutTransition> mPendingTransitions; 285 286 final ViewConfiguration mViewConfiguration; 287 288 /* Drag/drop */ 289 ClipDescription mDragDescription; 290 View mCurrentDragView; 291 volatile Object mLocalDragState; 292 final PointF mDragPoint = new PointF(); 293 final PointF mLastTouchPoint = new PointF(); 294 295 private boolean mProfileRendering; 296 private Choreographer.FrameCallback mRenderProfiler; 297 private boolean mRenderProfilingEnabled; 298 299 // Variables to track frames per second, enabled via DEBUG_FPS flag 300 private long mFpsStartTime = -1; 301 private long mFpsPrevTime = -1; 302 private int mFpsNumFrames; 303 304 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 305 306 /** 307 * see {@link #playSoundEffect(int)} 308 */ 309 AudioManager mAudioManager; 310 311 final AccessibilityManager mAccessibilityManager; 312 313 AccessibilityInteractionController mAccessibilityInteractionController; 314 315 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 316 317 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 318 319 HashSet<View> mTempHashSet; 320 321 private final int mDensity; 322 private final int mNoncompatDensity; 323 324 private boolean mInLayout = false; 325 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 326 boolean mHandlingLayoutInLayoutRequest = false; 327 328 private int mViewLayoutDirectionInitial; 329 330 /** 331 * Consistency verifier for debugging purposes. 332 */ 333 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 334 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 335 new InputEventConsistencyVerifier(this, 0) : null; 336 337 static final class SystemUiVisibilityInfo { 338 int seq; 339 int globalVisibility; 340 int localValue; 341 int localChanges; 342 } 343 344 public ViewRootImpl(Context context, Display display) { 345 super(); 346 347 if (MEASURE_LATENCY) { 348 if (lt == null) { 349 lt = new LatencyTimer(100, 1000); 350 } 351 } 352 353 // Initialize the statics when this class is first instantiated. This is 354 // done here instead of in the static block because Zygote does not 355 // allow the spawning of threads. 356 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 357 mDisplay = display; 358 359 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 360 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 361 362 mThread = Thread.currentThread(); 363 mLocation = new WindowLeaked(null); 364 mLocation.fillInStackTrace(); 365 mWidth = -1; 366 mHeight = -1; 367 mDirty = new Rect(); 368 mTempRect = new Rect(); 369 mVisRect = new Rect(); 370 mWinFrame = new Rect(); 371 mWindow = new W(this); 372 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 373 mInputMethodCallback = new InputMethodCallback(this); 374 mViewVisibility = View.GONE; 375 mTransparentRegion = new Region(); 376 mPreviousTransparentRegion = new Region(); 377 mFirst = true; // true for the first time the view is added 378 mAdded = false; 379 mAccessibilityManager = AccessibilityManager.getInstance(context); 380 mAccessibilityInteractionConnectionManager = 381 new AccessibilityInteractionConnectionManager(); 382 mAccessibilityManager.addAccessibilityStateChangeListener( 383 mAccessibilityInteractionConnectionManager); 384 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 385 mViewConfiguration = ViewConfiguration.get(context); 386 mDensity = context.getResources().getDisplayMetrics().densityDpi; 387 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 388 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 389 mChoreographer = Choreographer.getInstance(); 390 391 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 392 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 393 loadSystemProperties(); 394 mSimulatedDpad = new SimulatedDpad(context); 395 } 396 397 /** 398 * @return True if the application requests the use of a separate render thread, 399 * false otherwise 400 */ 401 private static boolean isRenderThreadRequested(Context context) { 402 if (USE_RENDER_THREAD) { 403 synchronized (sRenderThreadQueryLock) { 404 if (!sRenderThreadQueried) { 405 final PackageManager packageManager = context.getPackageManager(); 406 final String packageName = context.getApplicationInfo().packageName; 407 try { 408 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 409 PackageManager.GET_META_DATA); 410 if (applicationInfo.metaData != null) { 411 sUseRenderThread = applicationInfo.metaData.getBoolean( 412 "android.graphics.renderThread", false); 413 } 414 } catch (PackageManager.NameNotFoundException e) { 415 } finally { 416 sRenderThreadQueried = true; 417 } 418 } 419 return sUseRenderThread; 420 } 421 } else { 422 return false; 423 } 424 } 425 426 public static void addFirstDrawHandler(Runnable callback) { 427 synchronized (sFirstDrawHandlers) { 428 if (!sFirstDrawComplete) { 429 sFirstDrawHandlers.add(callback); 430 } 431 } 432 } 433 434 public static void addConfigCallback(ComponentCallbacks callback) { 435 synchronized (sConfigCallbacks) { 436 sConfigCallbacks.add(callback); 437 } 438 } 439 440 // FIXME for perf testing only 441 private boolean mProfile = false; 442 443 /** 444 * Call this to profile the next traversal call. 445 * FIXME for perf testing only. Remove eventually 446 */ 447 public void profile() { 448 mProfile = true; 449 } 450 451 /** 452 * Indicates whether we are in touch mode. Calling this method triggers an IPC 453 * call and should be avoided whenever possible. 454 * 455 * @return True, if the device is in touch mode, false otherwise. 456 * 457 * @hide 458 */ 459 static boolean isInTouchMode() { 460 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 461 if (windowSession != null) { 462 try { 463 return windowSession.getInTouchMode(); 464 } catch (RemoteException e) { 465 } 466 } 467 return false; 468 } 469 470 /** 471 * We have one child 472 */ 473 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 474 synchronized (this) { 475 if (mView == null) { 476 mView = view; 477 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 478 mFallbackEventHandler.setView(view); 479 mWindowAttributes.copyFrom(attrs); 480 attrs = mWindowAttributes; 481 // Keep track of the actual window flags supplied by the client. 482 mClientWindowLayoutFlags = attrs.flags; 483 484 setAccessibilityFocus(null, null); 485 486 if (view instanceof RootViewSurfaceTaker) { 487 mSurfaceHolderCallback = 488 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 489 if (mSurfaceHolderCallback != null) { 490 mSurfaceHolder = new TakenSurfaceHolder(); 491 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 492 } 493 } 494 495 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 496 mTranslator = compatibilityInfo.getTranslator(); 497 498 // If the application owns the surface, don't enable hardware acceleration 499 if (mSurfaceHolder == null) { 500 enableHardwareAcceleration(mView.getContext(), attrs); 501 } 502 503 boolean restore = false; 504 if (mTranslator != null) { 505 mSurface.setCompatibilityTranslator(mTranslator); 506 restore = true; 507 attrs.backup(); 508 mTranslator.translateWindowLayout(attrs); 509 } 510 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 511 512 if (!compatibilityInfo.supportsScreen()) { 513 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 514 mLastInCompatMode = true; 515 } 516 517 mSoftInputMode = attrs.softInputMode; 518 mWindowAttributesChanged = true; 519 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 520 mAttachInfo.mRootView = view; 521 mAttachInfo.mScalingRequired = mTranslator != null; 522 mAttachInfo.mApplicationScale = 523 mTranslator == null ? 1.0f : mTranslator.applicationScale; 524 if (panelParentView != null) { 525 mAttachInfo.mPanelParentWindowToken 526 = panelParentView.getApplicationWindowToken(); 527 } 528 mAdded = true; 529 int res; /* = WindowManagerImpl.ADD_OKAY; */ 530 531 // Schedule the first layout -before- adding to the window 532 // manager, to make sure we do the relayout before receiving 533 // any other events from the system. 534 requestLayout(); 535 if ((mWindowAttributes.inputFeatures 536 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 537 mInputChannel = new InputChannel(); 538 } 539 try { 540 mOrigWindowType = mWindowAttributes.type; 541 mAttachInfo.mRecomputeGlobalAttributes = true; 542 collectViewAttributes(); 543 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 544 getHostVisibility(), mDisplay.getDisplayId(), 545 mAttachInfo.mContentInsets, mInputChannel); 546 } catch (RemoteException e) { 547 mAdded = false; 548 mView = null; 549 mAttachInfo.mRootView = null; 550 mInputChannel = null; 551 mFallbackEventHandler.setView(null); 552 unscheduleTraversals(); 553 setAccessibilityFocus(null, null); 554 throw new RuntimeException("Adding window failed", e); 555 } finally { 556 if (restore) { 557 attrs.restore(); 558 } 559 } 560 561 if (mTranslator != null) { 562 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 563 } 564 mPendingContentInsets.set(mAttachInfo.mContentInsets); 565 mPendingVisibleInsets.set(0, 0, 0, 0); 566 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 567 if (res < WindowManagerGlobal.ADD_OKAY) { 568 mAttachInfo.mRootView = null; 569 mAdded = false; 570 mFallbackEventHandler.setView(null); 571 unscheduleTraversals(); 572 setAccessibilityFocus(null, null); 573 switch (res) { 574 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 575 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 576 throw new WindowManager.BadTokenException( 577 "Unable to add window -- token " + attrs.token 578 + " is not valid; is your activity running?"); 579 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 580 throw new WindowManager.BadTokenException( 581 "Unable to add window -- token " + attrs.token 582 + " is not for an application"); 583 case WindowManagerGlobal.ADD_APP_EXITING: 584 throw new WindowManager.BadTokenException( 585 "Unable to add window -- app for token " + attrs.token 586 + " is exiting"); 587 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 588 throw new WindowManager.BadTokenException( 589 "Unable to add window -- window " + mWindow 590 + " has already been added"); 591 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 592 // Silently ignore -- we would have just removed it 593 // right away, anyway. 594 return; 595 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 596 throw new WindowManager.BadTokenException( 597 "Unable to add window " + mWindow + 598 " -- another window of this type already exists"); 599 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 600 throw new WindowManager.BadTokenException( 601 "Unable to add window " + mWindow + 602 " -- permission denied for this window type"); 603 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 604 throw new WindowManager.InvalidDisplayException( 605 "Unable to add window " + mWindow + 606 " -- the specified display can not be found"); 607 } 608 throw new RuntimeException( 609 "Unable to add window -- unknown error code " + res); 610 } 611 612 if (view instanceof RootViewSurfaceTaker) { 613 mInputQueueCallback = 614 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 615 } 616 if (mInputChannel != null) { 617 if (mInputQueueCallback != null) { 618 mInputQueue = new InputQueue(mInputChannel); 619 mInputQueueCallback.onInputQueueCreated(mInputQueue); 620 } else { 621 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 622 Looper.myLooper()); 623 } 624 } 625 626 view.assignParent(this); 627 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 628 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 629 630 if (mAccessibilityManager.isEnabled()) { 631 mAccessibilityInteractionConnectionManager.ensureConnection(); 632 } 633 634 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 635 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 636 } 637 } 638 } 639 } 640 641 void destroyHardwareResources() { 642 if (mAttachInfo.mHardwareRenderer != null) { 643 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 644 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 645 } 646 mAttachInfo.mHardwareRenderer.destroy(false); 647 } 648 } 649 650 void terminateHardwareResources() { 651 if (mAttachInfo.mHardwareRenderer != null) { 652 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 653 mAttachInfo.mHardwareRenderer.destroy(false); 654 } 655 } 656 657 void destroyHardwareLayers() { 658 if (mThread != Thread.currentThread()) { 659 if (mAttachInfo.mHardwareRenderer != null && 660 mAttachInfo.mHardwareRenderer.isEnabled()) { 661 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 662 } 663 } else { 664 if (mAttachInfo.mHardwareRenderer != null && 665 mAttachInfo.mHardwareRenderer.isEnabled()) { 666 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 667 } 668 } 669 } 670 671 void pushHardwareLayerUpdate(HardwareLayer layer) { 672 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 673 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 674 } 675 } 676 677 public boolean attachFunctor(int functor) { 678 //noinspection SimplifiableIfStatement 679 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 680 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 681 } 682 return false; 683 } 684 685 public void detachFunctor(int functor) { 686 if (mAttachInfo.mHardwareRenderer != null) { 687 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 688 } 689 } 690 691 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 692 mAttachInfo.mHardwareAccelerated = false; 693 mAttachInfo.mHardwareAccelerationRequested = false; 694 695 // Don't enable hardware acceleration when the application is in compatibility mode 696 if (mTranslator != null) return; 697 698 // Try to enable hardware acceleration if requested 699 final boolean hardwareAccelerated = 700 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 701 702 if (hardwareAccelerated) { 703 if (!HardwareRenderer.isAvailable()) { 704 return; 705 } 706 707 // Persistent processes (including the system) should not do 708 // accelerated rendering on low-end devices. In that case, 709 // sRendererDisabled will be set. In addition, the system process 710 // itself should never do accelerated rendering. In that case, both 711 // sRendererDisabled and sSystemRendererDisabled are set. When 712 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 713 // can be used by code on the system process to escape that and enable 714 // HW accelerated drawing. (This is basically for the lock screen.) 715 716 final boolean fakeHwAccelerated = (attrs.privateFlags & 717 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 718 final boolean forceHwAccelerated = (attrs.privateFlags & 719 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 720 721 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 722 && forceHwAccelerated)) { 723 // Don't enable hardware acceleration when we're not on the main thread 724 if (!HardwareRenderer.sSystemRendererDisabled && 725 Looper.getMainLooper() != Looper.myLooper()) { 726 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 727 + "acceleration outside of the main thread, aborting"); 728 return; 729 } 730 731 final boolean renderThread = isRenderThreadRequested(context); 732 if (renderThread) { 733 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 734 } 735 736 if (mAttachInfo.mHardwareRenderer != null) { 737 mAttachInfo.mHardwareRenderer.destroy(true); 738 } 739 740 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 741 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 742 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 743 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 744 = mAttachInfo.mHardwareRenderer != null; 745 746 } else if (fakeHwAccelerated) { 747 // The window had wanted to use hardware acceleration, but this 748 // is not allowed in its process. By setting this flag, it can 749 // still render as if it was accelerated. This is basically for 750 // the preview windows the window manager shows for launching 751 // applications, so they will look more like the app being launched. 752 mAttachInfo.mHardwareAccelerationRequested = true; 753 } 754 } 755 } 756 757 public View getView() { 758 return mView; 759 } 760 761 final WindowLeaked getLocation() { 762 return mLocation; 763 } 764 765 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 766 synchronized (this) { 767 int oldSoftInputMode = mWindowAttributes.softInputMode; 768 // Keep track of the actual window flags supplied by the client. 769 mClientWindowLayoutFlags = attrs.flags; 770 // preserve compatible window flag if exists. 771 int compatibleWindowFlag = 772 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 773 // transfer over system UI visibility values as they carry current state. 774 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 775 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 776 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 777 mWindowAttributes.flags |= compatibleWindowFlag; 778 779 applyKeepScreenOnFlag(mWindowAttributes); 780 781 if (newView) { 782 mSoftInputMode = attrs.softInputMode; 783 requestLayout(); 784 } 785 // Don't lose the mode we last auto-computed. 786 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 787 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 788 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 789 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 790 | (oldSoftInputMode 791 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 792 } 793 mWindowAttributesChanged = true; 794 scheduleTraversals(); 795 } 796 } 797 798 void handleAppVisibility(boolean visible) { 799 if (mAppVisible != visible) { 800 mAppVisible = visible; 801 scheduleTraversals(); 802 } 803 } 804 805 void handleGetNewSurface() { 806 mNewSurfaceNeeded = true; 807 mFullRedrawNeeded = true; 808 scheduleTraversals(); 809 } 810 811 void handleScreenStateChange(boolean on) { 812 if (on != mAttachInfo.mScreenOn) { 813 mAttachInfo.mScreenOn = on; 814 if (mView != null) { 815 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 816 } 817 if (on) { 818 mFullRedrawNeeded = true; 819 scheduleTraversals(); 820 } 821 } 822 } 823 824 @Override 825 public void requestFitSystemWindows() { 826 checkThread(); 827 mFitSystemWindowsRequested = true; 828 scheduleTraversals(); 829 } 830 831 @Override 832 public void requestLayout() { 833 if (!mHandlingLayoutInLayoutRequest) { 834 checkThread(); 835 mLayoutRequested = true; 836 scheduleTraversals(); 837 } 838 } 839 840 @Override 841 public boolean isLayoutRequested() { 842 return mLayoutRequested; 843 } 844 845 void invalidate() { 846 mDirty.set(0, 0, mWidth, mHeight); 847 scheduleTraversals(); 848 } 849 850 void invalidateWorld(View view) { 851 view.invalidate(); 852 if (view instanceof ViewGroup) { 853 ViewGroup parent = (ViewGroup) view; 854 for (int i = 0; i < parent.getChildCount(); i++) { 855 invalidateWorld(parent.getChildAt(i)); 856 } 857 } 858 } 859 860 @Override 861 public void invalidateChild(View child, Rect dirty) { 862 invalidateChildInParent(null, dirty); 863 } 864 865 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 866 checkThread(); 867 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 868 869 if (dirty == null) { 870 invalidate(); 871 return null; 872 } else if (dirty.isEmpty() && !mIsAnimating) { 873 return null; 874 } 875 876 if (mCurScrollY != 0 || mTranslator != null) { 877 mTempRect.set(dirty); 878 dirty = mTempRect; 879 if (mCurScrollY != 0) { 880 dirty.offset(0, -mCurScrollY); 881 } 882 if (mTranslator != null) { 883 mTranslator.translateRectInAppWindowToScreen(dirty); 884 } 885 if (mAttachInfo.mScalingRequired) { 886 dirty.inset(-1, -1); 887 } 888 } 889 890 final Rect localDirty = mDirty; 891 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 892 mAttachInfo.mSetIgnoreDirtyState = true; 893 mAttachInfo.mIgnoreDirtyState = true; 894 } 895 896 // Add the new dirty rect to the current one 897 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 898 // Intersect with the bounds of the window to skip 899 // updates that lie outside of the visible region 900 final float appScale = mAttachInfo.mApplicationScale; 901 final boolean intersected = localDirty.intersect(0, 0, 902 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 903 if (!intersected) { 904 localDirty.setEmpty(); 905 } 906 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 907 scheduleTraversals(); 908 } 909 910 return null; 911 } 912 913 void setStopped(boolean stopped) { 914 if (mStopped != stopped) { 915 mStopped = stopped; 916 if (!stopped) { 917 scheduleTraversals(); 918 } 919 } 920 } 921 922 public ViewParent getParent() { 923 return null; 924 } 925 926 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 927 if (child != mView) { 928 throw new RuntimeException("child is not mine, honest!"); 929 } 930 // Note: don't apply scroll offset, because we want to know its 931 // visibility in the virtual canvas being given to the view hierarchy. 932 return r.intersect(0, 0, mWidth, mHeight); 933 } 934 935 public void bringChildToFront(View child) { 936 } 937 938 int getHostVisibility() { 939 return mAppVisible ? mView.getVisibility() : View.GONE; 940 } 941 942 void disposeResizeBuffer() { 943 if (mResizeBuffer != null) { 944 mResizeBuffer.destroy(); 945 mResizeBuffer = null; 946 } 947 } 948 949 /** 950 * Add LayoutTransition to the list of transitions to be started in the next traversal. 951 * This list will be cleared after the transitions on the list are start()'ed. These 952 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 953 * happens during the layout phase of traversal, which we want to complete before any of the 954 * animations are started (because those animations may side-effect properties that layout 955 * depends upon, like the bounding rectangles of the affected views). So we add the transition 956 * to the list and it is started just prior to starting the drawing phase of traversal. 957 * 958 * @param transition The LayoutTransition to be started on the next traversal. 959 * 960 * @hide 961 */ 962 public void requestTransitionStart(LayoutTransition transition) { 963 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 964 if (mPendingTransitions == null) { 965 mPendingTransitions = new ArrayList<LayoutTransition>(); 966 } 967 mPendingTransitions.add(transition); 968 } 969 } 970 971 void scheduleTraversals() { 972 if (!mTraversalScheduled) { 973 mTraversalScheduled = true; 974 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 975 mChoreographer.postCallback( 976 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 977 scheduleConsumeBatchedInput(); 978 } 979 } 980 981 void unscheduleTraversals() { 982 if (mTraversalScheduled) { 983 mTraversalScheduled = false; 984 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 985 mChoreographer.removeCallbacks( 986 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 987 } 988 } 989 990 void doTraversal() { 991 if (mTraversalScheduled) { 992 mTraversalScheduled = false; 993 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 994 995 if (mProfile) { 996 Debug.startMethodTracing("ViewAncestor"); 997 } 998 999 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1000 try { 1001 performTraversals(); 1002 } finally { 1003 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1004 } 1005 1006 if (mProfile) { 1007 Debug.stopMethodTracing(); 1008 mProfile = false; 1009 } 1010 } 1011 } 1012 1013 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1014 // Update window's global keep screen on flag: if a view has requested 1015 // that the screen be kept on, then it is always set; otherwise, it is 1016 // set to whatever the client last requested for the global state. 1017 if (mAttachInfo.mKeepScreenOn) { 1018 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1019 } else { 1020 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1021 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1022 } 1023 } 1024 1025 private boolean collectViewAttributes() { 1026 final View.AttachInfo attachInfo = mAttachInfo; 1027 if (attachInfo.mRecomputeGlobalAttributes) { 1028 //Log.i(TAG, "Computing view hierarchy attributes!"); 1029 attachInfo.mRecomputeGlobalAttributes = false; 1030 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1031 attachInfo.mKeepScreenOn = false; 1032 attachInfo.mSystemUiVisibility = 0; 1033 attachInfo.mHasSystemUiListeners = false; 1034 mView.dispatchCollectViewAttributes(attachInfo, 0); 1035 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1036 WindowManager.LayoutParams params = mWindowAttributes; 1037 if (attachInfo.mKeepScreenOn != oldScreenOn 1038 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1039 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1040 applyKeepScreenOnFlag(params); 1041 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1042 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1043 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1044 return true; 1045 } 1046 } 1047 return false; 1048 } 1049 1050 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1051 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1052 int childWidthMeasureSpec; 1053 int childHeightMeasureSpec; 1054 boolean windowSizeMayChange = false; 1055 1056 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1057 "Measuring " + host + " in display " + desiredWindowWidth 1058 + "x" + desiredWindowHeight + "..."); 1059 1060 boolean goodMeasure = false; 1061 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1062 // On large screens, we don't want to allow dialogs to just 1063 // stretch to fill the entire width of the screen to display 1064 // one line of text. First try doing the layout at a smaller 1065 // size to see if it will fit. 1066 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1067 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1068 int baseSize = 0; 1069 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1070 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1071 } 1072 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1073 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1074 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1075 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1076 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1077 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1078 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1079 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1080 goodMeasure = true; 1081 } else { 1082 // Didn't fit in that size... try expanding a bit. 1083 baseSize = (baseSize+desiredWindowWidth)/2; 1084 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1085 + baseSize); 1086 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1087 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1088 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1089 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1090 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1091 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1092 goodMeasure = true; 1093 } 1094 } 1095 } 1096 } 1097 1098 if (!goodMeasure) { 1099 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1100 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1101 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1102 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1103 windowSizeMayChange = true; 1104 } 1105 } 1106 1107 if (DBG) { 1108 System.out.println("======================================"); 1109 System.out.println("performTraversals -- after measure"); 1110 host.debug(); 1111 } 1112 1113 return windowSizeMayChange; 1114 } 1115 1116 private void performTraversals() { 1117 // cache mView since it is used so much below... 1118 final View host = mView; 1119 1120 if (DBG) { 1121 System.out.println("======================================"); 1122 System.out.println("performTraversals"); 1123 host.debug(); 1124 } 1125 1126 if (host == null || !mAdded) 1127 return; 1128 1129 mIsInTraversal = true; 1130 mWillDrawSoon = true; 1131 boolean windowSizeMayChange = false; 1132 boolean newSurface = false; 1133 boolean surfaceChanged = false; 1134 WindowManager.LayoutParams lp = mWindowAttributes; 1135 1136 int desiredWindowWidth; 1137 int desiredWindowHeight; 1138 1139 final View.AttachInfo attachInfo = mAttachInfo; 1140 1141 final int viewVisibility = getHostVisibility(); 1142 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1143 || mNewSurfaceNeeded; 1144 1145 WindowManager.LayoutParams params = null; 1146 if (mWindowAttributesChanged) { 1147 mWindowAttributesChanged = false; 1148 surfaceChanged = true; 1149 params = lp; 1150 } 1151 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1152 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1153 params = lp; 1154 mFullRedrawNeeded = true; 1155 mLayoutRequested = true; 1156 if (mLastInCompatMode) { 1157 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1158 mLastInCompatMode = false; 1159 } else { 1160 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1161 mLastInCompatMode = true; 1162 } 1163 } 1164 1165 mWindowAttributesChangesFlag = 0; 1166 1167 Rect frame = mWinFrame; 1168 if (mFirst) { 1169 mFullRedrawNeeded = true; 1170 mLayoutRequested = true; 1171 1172 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1173 // NOTE -- system code, won't try to do compat mode. 1174 Point size = new Point(); 1175 mDisplay.getRealSize(size); 1176 desiredWindowWidth = size.x; 1177 desiredWindowHeight = size.y; 1178 } else { 1179 DisplayMetrics packageMetrics = 1180 mView.getContext().getResources().getDisplayMetrics(); 1181 desiredWindowWidth = packageMetrics.widthPixels; 1182 desiredWindowHeight = packageMetrics.heightPixels; 1183 } 1184 1185 // For the very first time, tell the view hierarchy that it 1186 // is attached to the window. Note that at this point the surface 1187 // object is not initialized to its backing store, but soon it 1188 // will be (assuming the window is visible). 1189 attachInfo.mSurface = mSurface; 1190 // We used to use the following condition to choose 32 bits drawing caches: 1191 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1192 // However, windows are now always 32 bits by default, so choose 32 bits 1193 attachInfo.mUse32BitDrawingCache = true; 1194 attachInfo.mHasWindowFocus = false; 1195 attachInfo.mWindowVisibility = viewVisibility; 1196 attachInfo.mRecomputeGlobalAttributes = false; 1197 viewVisibilityChanged = false; 1198 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1199 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1200 // Set the layout direction if it has not been set before (inherit is the default) 1201 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1202 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1203 } 1204 host.dispatchAttachedToWindow(attachInfo, 0); 1205 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1206 host.fitSystemWindows(mFitSystemWindowsInsets); 1207 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1208 1209 } else { 1210 desiredWindowWidth = frame.width(); 1211 desiredWindowHeight = frame.height(); 1212 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1213 if (DEBUG_ORIENTATION) Log.v(TAG, 1214 "View " + host + " resized to: " + frame); 1215 mFullRedrawNeeded = true; 1216 mLayoutRequested = true; 1217 windowSizeMayChange = true; 1218 } 1219 } 1220 1221 if (viewVisibilityChanged) { 1222 attachInfo.mWindowVisibility = viewVisibility; 1223 host.dispatchWindowVisibilityChanged(viewVisibility); 1224 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1225 destroyHardwareResources(); 1226 } 1227 if (viewVisibility == View.GONE) { 1228 // After making a window gone, we will count it as being 1229 // shown for the first time the next time it gets focus. 1230 mHasHadWindowFocus = false; 1231 } 1232 } 1233 1234 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1235 getRunQueue().executeActions(attachInfo.mHandler); 1236 1237 boolean insetsChanged = false; 1238 1239 boolean layoutRequested = mLayoutRequested && !mStopped; 1240 if (layoutRequested) { 1241 1242 final Resources res = mView.getContext().getResources(); 1243 1244 if (mFirst) { 1245 // make sure touch mode code executes by setting cached value 1246 // to opposite of the added touch mode. 1247 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1248 ensureTouchModeLocally(mAddedTouchMode); 1249 } else { 1250 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1251 insetsChanged = true; 1252 } 1253 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1254 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1255 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1256 + mAttachInfo.mVisibleInsets); 1257 } 1258 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1259 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1260 windowSizeMayChange = true; 1261 1262 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1263 // NOTE -- system code, won't try to do compat mode. 1264 Point size = new Point(); 1265 mDisplay.getRealSize(size); 1266 desiredWindowWidth = size.x; 1267 desiredWindowHeight = size.y; 1268 } else { 1269 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1270 desiredWindowWidth = packageMetrics.widthPixels; 1271 desiredWindowHeight = packageMetrics.heightPixels; 1272 } 1273 } 1274 } 1275 1276 // Ask host how big it wants to be 1277 windowSizeMayChange |= measureHierarchy(host, lp, res, 1278 desiredWindowWidth, desiredWindowHeight); 1279 } 1280 1281 if (collectViewAttributes()) { 1282 params = lp; 1283 } 1284 if (attachInfo.mForceReportNewAttributes) { 1285 attachInfo.mForceReportNewAttributes = false; 1286 params = lp; 1287 } 1288 1289 if (mFirst || attachInfo.mViewVisibilityChanged) { 1290 attachInfo.mViewVisibilityChanged = false; 1291 int resizeMode = mSoftInputMode & 1292 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1293 // If we are in auto resize mode, then we need to determine 1294 // what mode to use now. 1295 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1296 final int N = attachInfo.mScrollContainers.size(); 1297 for (int i=0; i<N; i++) { 1298 if (attachInfo.mScrollContainers.get(i).isShown()) { 1299 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1300 } 1301 } 1302 if (resizeMode == 0) { 1303 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1304 } 1305 if ((lp.softInputMode & 1306 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1307 lp.softInputMode = (lp.softInputMode & 1308 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1309 resizeMode; 1310 params = lp; 1311 } 1312 } 1313 } 1314 1315 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1316 if (!PixelFormat.formatHasAlpha(params.format)) { 1317 params.format = PixelFormat.TRANSLUCENT; 1318 } 1319 } 1320 1321 if (mFitSystemWindowsRequested) { 1322 mFitSystemWindowsRequested = false; 1323 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1324 host.fitSystemWindows(mFitSystemWindowsInsets); 1325 if (mLayoutRequested) { 1326 // Short-circuit catching a new layout request here, so 1327 // we don't need to go through two layout passes when things 1328 // change due to fitting system windows, which can happen a lot. 1329 windowSizeMayChange |= measureHierarchy(host, lp, 1330 mView.getContext().getResources(), 1331 desiredWindowWidth, desiredWindowHeight); 1332 } 1333 } 1334 1335 if (layoutRequested) { 1336 // Clear this now, so that if anything requests a layout in the 1337 // rest of this function we will catch it and re-run a full 1338 // layout pass. 1339 mLayoutRequested = false; 1340 } 1341 1342 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1343 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1344 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1345 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1346 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1347 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1348 1349 final boolean computesInternalInsets = 1350 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1351 1352 boolean insetsPending = false; 1353 int relayoutResult = 0; 1354 1355 if (mFirst || windowShouldResize || insetsChanged || 1356 viewVisibilityChanged || params != null) { 1357 1358 if (viewVisibility == View.VISIBLE) { 1359 // If this window is giving internal insets to the window 1360 // manager, and it is being added or changing its visibility, 1361 // then we want to first give the window manager "fake" 1362 // insets to cause it to effectively ignore the content of 1363 // the window during layout. This avoids it briefly causing 1364 // other windows to resize/move based on the raw frame of the 1365 // window, waiting until we can finish laying out this window 1366 // and get back to the window manager with the ultimately 1367 // computed insets. 1368 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1369 } 1370 1371 if (mSurfaceHolder != null) { 1372 mSurfaceHolder.mSurfaceLock.lock(); 1373 mDrawingAllowed = true; 1374 } 1375 1376 boolean hwInitialized = false; 1377 boolean contentInsetsChanged = false; 1378 boolean visibleInsetsChanged; 1379 boolean hadSurface = mSurface.isValid(); 1380 1381 try { 1382 if (DEBUG_LAYOUT) { 1383 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1384 host.getMeasuredHeight() + ", params=" + params); 1385 } 1386 1387 final int surfaceGenerationId = mSurface.getGenerationId(); 1388 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1389 1390 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1391 + " content=" + mPendingContentInsets.toShortString() 1392 + " visible=" + mPendingVisibleInsets.toShortString() 1393 + " surface=" + mSurface); 1394 1395 if (mPendingConfiguration.seq != 0) { 1396 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1397 + mPendingConfiguration); 1398 updateConfiguration(mPendingConfiguration, !mFirst); 1399 mPendingConfiguration.seq = 0; 1400 } 1401 1402 contentInsetsChanged = !mPendingContentInsets.equals( 1403 mAttachInfo.mContentInsets); 1404 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1405 mAttachInfo.mVisibleInsets); 1406 if (contentInsetsChanged) { 1407 if (mWidth > 0 && mHeight > 0 && lp != null && 1408 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1409 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1410 mSurface != null && mSurface.isValid() && 1411 !mAttachInfo.mTurnOffWindowResizeAnim && 1412 mAttachInfo.mHardwareRenderer != null && 1413 mAttachInfo.mHardwareRenderer.isEnabled() && 1414 mAttachInfo.mHardwareRenderer.validate() && 1415 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1416 1417 disposeResizeBuffer(); 1418 1419 boolean completed = false; 1420 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1421 HardwareCanvas layerCanvas = null; 1422 try { 1423 if (mResizeBuffer == null) { 1424 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1425 mWidth, mHeight, false); 1426 } else if (mResizeBuffer.getWidth() != mWidth || 1427 mResizeBuffer.getHeight() != mHeight) { 1428 mResizeBuffer.resize(mWidth, mHeight); 1429 } 1430 // TODO: should handle create/resize failure 1431 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1432 layerCanvas.setViewport(mWidth, mHeight); 1433 layerCanvas.onPreDraw(null); 1434 final int restoreCount = layerCanvas.save(); 1435 1436 int yoff; 1437 final boolean scrolling = mScroller != null 1438 && mScroller.computeScrollOffset(); 1439 if (scrolling) { 1440 yoff = mScroller.getCurrY(); 1441 mScroller.abortAnimation(); 1442 } else { 1443 yoff = mScrollY; 1444 } 1445 1446 layerCanvas.translate(0, -yoff); 1447 if (mTranslator != null) { 1448 mTranslator.translateCanvas(layerCanvas); 1449 } 1450 1451 DisplayList displayList = mView.mDisplayList; 1452 if (displayList != null) { 1453 layerCanvas.drawDisplayList(displayList, null, 1454 DisplayList.FLAG_CLIP_CHILDREN); 1455 } else { 1456 mView.draw(layerCanvas); 1457 } 1458 1459 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1460 1461 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1462 mResizeBufferDuration = mView.getResources().getInteger( 1463 com.android.internal.R.integer.config_mediumAnimTime); 1464 completed = true; 1465 1466 layerCanvas.restoreToCount(restoreCount); 1467 } catch (OutOfMemoryError e) { 1468 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1469 } finally { 1470 if (layerCanvas != null) { 1471 layerCanvas.onPostDraw(); 1472 } 1473 if (mResizeBuffer != null) { 1474 mResizeBuffer.end(hwRendererCanvas); 1475 if (!completed) { 1476 mResizeBuffer.destroy(); 1477 mResizeBuffer = null; 1478 } 1479 } 1480 } 1481 } 1482 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1483 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1484 + mAttachInfo.mContentInsets); 1485 } 1486 if (contentInsetsChanged || mLastSystemUiVisibility != 1487 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1488 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1489 mFitSystemWindowsRequested = false; 1490 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1491 host.fitSystemWindows(mFitSystemWindowsInsets); 1492 } 1493 if (visibleInsetsChanged) { 1494 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1495 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1496 + mAttachInfo.mVisibleInsets); 1497 } 1498 1499 if (!hadSurface) { 1500 if (mSurface.isValid()) { 1501 // If we are creating a new surface, then we need to 1502 // completely redraw it. Also, when we get to the 1503 // point of drawing it we will hold off and schedule 1504 // a new traversal instead. This is so we can tell the 1505 // window manager about all of the windows being displayed 1506 // before actually drawing them, so it can display then 1507 // all at once. 1508 newSurface = true; 1509 mFullRedrawNeeded = true; 1510 mPreviousTransparentRegion.setEmpty(); 1511 1512 if (mAttachInfo.mHardwareRenderer != null) { 1513 try { 1514 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1515 mHolder.getSurface()); 1516 } catch (Surface.OutOfResourcesException e) { 1517 handleOutOfResourcesException(e); 1518 return; 1519 } 1520 } 1521 } 1522 } else if (!mSurface.isValid()) { 1523 // If the surface has been removed, then reset the scroll 1524 // positions. 1525 if (mLastScrolledFocus != null) { 1526 mLastScrolledFocus.clear(); 1527 } 1528 mScrollY = mCurScrollY = 0; 1529 if (mScroller != null) { 1530 mScroller.abortAnimation(); 1531 } 1532 disposeResizeBuffer(); 1533 // Our surface is gone 1534 if (mAttachInfo.mHardwareRenderer != null && 1535 mAttachInfo.mHardwareRenderer.isEnabled()) { 1536 mAttachInfo.mHardwareRenderer.destroy(true); 1537 } 1538 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1539 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1540 mFullRedrawNeeded = true; 1541 try { 1542 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1543 } catch (Surface.OutOfResourcesException e) { 1544 handleOutOfResourcesException(e); 1545 return; 1546 } 1547 } 1548 } catch (RemoteException e) { 1549 } 1550 1551 if (DEBUG_ORIENTATION) Log.v( 1552 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1553 1554 attachInfo.mWindowLeft = frame.left; 1555 attachInfo.mWindowTop = frame.top; 1556 1557 // !!FIXME!! This next section handles the case where we did not get the 1558 // window size we asked for. We should avoid this by getting a maximum size from 1559 // the window session beforehand. 1560 if (mWidth != frame.width() || mHeight != frame.height()) { 1561 mWidth = frame.width(); 1562 mHeight = frame.height(); 1563 } 1564 1565 if (mSurfaceHolder != null) { 1566 // The app owns the surface; tell it about what is going on. 1567 if (mSurface.isValid()) { 1568 // XXX .copyFrom() doesn't work! 1569 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1570 mSurfaceHolder.mSurface = mSurface; 1571 } 1572 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1573 mSurfaceHolder.mSurfaceLock.unlock(); 1574 if (mSurface.isValid()) { 1575 if (!hadSurface) { 1576 mSurfaceHolder.ungetCallbacks(); 1577 1578 mIsCreating = true; 1579 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1580 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1581 if (callbacks != null) { 1582 for (SurfaceHolder.Callback c : callbacks) { 1583 c.surfaceCreated(mSurfaceHolder); 1584 } 1585 } 1586 surfaceChanged = true; 1587 } 1588 if (surfaceChanged) { 1589 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1590 lp.format, mWidth, mHeight); 1591 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1592 if (callbacks != null) { 1593 for (SurfaceHolder.Callback c : callbacks) { 1594 c.surfaceChanged(mSurfaceHolder, lp.format, 1595 mWidth, mHeight); 1596 } 1597 } 1598 } 1599 mIsCreating = false; 1600 } else if (hadSurface) { 1601 mSurfaceHolder.ungetCallbacks(); 1602 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1603 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1604 if (callbacks != null) { 1605 for (SurfaceHolder.Callback c : callbacks) { 1606 c.surfaceDestroyed(mSurfaceHolder); 1607 } 1608 } 1609 mSurfaceHolder.mSurfaceLock.lock(); 1610 try { 1611 mSurfaceHolder.mSurface = new Surface(); 1612 } finally { 1613 mSurfaceHolder.mSurfaceLock.unlock(); 1614 } 1615 } 1616 } 1617 1618 if (mAttachInfo.mHardwareRenderer != null && 1619 mAttachInfo.mHardwareRenderer.isEnabled()) { 1620 if (hwInitialized || windowShouldResize || 1621 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1622 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1623 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1624 if (!hwInitialized) { 1625 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1626 mFullRedrawNeeded = true; 1627 } 1628 } 1629 } 1630 1631 if (!mStopped) { 1632 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1633 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1634 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1635 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1636 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1637 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1638 1639 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1640 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1641 + " mHeight=" + mHeight 1642 + " measuredHeight=" + host.getMeasuredHeight() 1643 + " coveredInsetsChanged=" + contentInsetsChanged); 1644 1645 // Ask host how big it wants to be 1646 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1647 1648 // Implementation of weights from WindowManager.LayoutParams 1649 // We just grow the dimensions as needed and re-measure if 1650 // needs be 1651 int width = host.getMeasuredWidth(); 1652 int height = host.getMeasuredHeight(); 1653 boolean measureAgain = false; 1654 1655 if (lp.horizontalWeight > 0.0f) { 1656 width += (int) ((mWidth - width) * lp.horizontalWeight); 1657 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1658 MeasureSpec.EXACTLY); 1659 measureAgain = true; 1660 } 1661 if (lp.verticalWeight > 0.0f) { 1662 height += (int) ((mHeight - height) * lp.verticalWeight); 1663 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1664 MeasureSpec.EXACTLY); 1665 measureAgain = true; 1666 } 1667 1668 if (measureAgain) { 1669 if (DEBUG_LAYOUT) Log.v(TAG, 1670 "And hey let's measure once more: width=" + width 1671 + " height=" + height); 1672 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1673 } 1674 1675 layoutRequested = true; 1676 } 1677 } 1678 } else { 1679 // Not the first pass and no window/insets/visibility change but the window 1680 // may have moved and we need check that and if so to update the left and right 1681 // in the attach info. We translate only the window frame since on window move 1682 // the window manager tells us only for the new frame but the insets are the 1683 // same and we do not want to translate them more than once. 1684 1685 // TODO: Well, we are checking whether the frame has changed similarly 1686 // to how this is done for the insets. This is however incorrect since 1687 // the insets and the frame are translated. For example, the old frame 1688 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1689 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1690 // true since we are comparing a not translated value to a translated one. 1691 // This scenario is rare but we may want to fix that. 1692 1693 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1694 || attachInfo.mWindowTop != frame.top); 1695 if (windowMoved) { 1696 if (mTranslator != null) { 1697 mTranslator.translateRectInScreenToAppWinFrame(frame); 1698 } 1699 attachInfo.mWindowLeft = frame.left; 1700 attachInfo.mWindowTop = frame.top; 1701 } 1702 } 1703 1704 final boolean didLayout = layoutRequested && !mStopped; 1705 boolean triggerGlobalLayoutListener = didLayout 1706 || attachInfo.mRecomputeGlobalAttributes; 1707 if (didLayout) { 1708 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1709 1710 // By this point all views have been sized and positionned 1711 // We can compute the transparent area 1712 1713 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1714 // start out transparent 1715 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1716 host.getLocationInWindow(mTmpLocation); 1717 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1718 mTmpLocation[0] + host.mRight - host.mLeft, 1719 mTmpLocation[1] + host.mBottom - host.mTop); 1720 1721 host.gatherTransparentRegion(mTransparentRegion); 1722 if (mTranslator != null) { 1723 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1724 } 1725 1726 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1727 mPreviousTransparentRegion.set(mTransparentRegion); 1728 // reconfigure window manager 1729 try { 1730 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1731 } catch (RemoteException e) { 1732 } 1733 } 1734 } 1735 1736 if (DBG) { 1737 System.out.println("======================================"); 1738 System.out.println("performTraversals -- after setFrame"); 1739 host.debug(); 1740 } 1741 } 1742 1743 if (triggerGlobalLayoutListener) { 1744 attachInfo.mRecomputeGlobalAttributes = false; 1745 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1746 1747 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1748 postSendWindowContentChangedCallback(mView); 1749 } 1750 } 1751 1752 if (computesInternalInsets) { 1753 // Clear the original insets. 1754 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1755 insets.reset(); 1756 1757 // Compute new insets in place. 1758 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1759 1760 // Tell the window manager. 1761 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1762 mLastGivenInsets.set(insets); 1763 1764 // Translate insets to screen coordinates if needed. 1765 final Rect contentInsets; 1766 final Rect visibleInsets; 1767 final Region touchableRegion; 1768 if (mTranslator != null) { 1769 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1770 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1771 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1772 } else { 1773 contentInsets = insets.contentInsets; 1774 visibleInsets = insets.visibleInsets; 1775 touchableRegion = insets.touchableRegion; 1776 } 1777 1778 try { 1779 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1780 contentInsets, visibleInsets, touchableRegion); 1781 } catch (RemoteException e) { 1782 } 1783 } 1784 } 1785 1786 boolean skipDraw = false; 1787 1788 if (mFirst) { 1789 // handle first focus request 1790 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1791 + mView.hasFocus()); 1792 if (mView != null) { 1793 if (!mView.hasFocus()) { 1794 mView.requestFocus(View.FOCUS_FORWARD); 1795 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1796 + mView.findFocus()); 1797 } else { 1798 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1799 + mView.findFocus()); 1800 } 1801 } 1802 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1803 // The first time we relayout the window, if the system is 1804 // doing window animations, we want to hold of on any future 1805 // draws until the animation is done. 1806 mWindowsAnimating = true; 1807 } 1808 } else if (mWindowsAnimating) { 1809 skipDraw = true; 1810 } 1811 1812 mFirst = false; 1813 mWillDrawSoon = false; 1814 mNewSurfaceNeeded = false; 1815 mViewVisibility = viewVisibility; 1816 1817 if (mAttachInfo.mHasWindowFocus) { 1818 final boolean imTarget = WindowManager.LayoutParams 1819 .mayUseInputMethod(mWindowAttributes.flags); 1820 if (imTarget != mLastWasImTarget) { 1821 mLastWasImTarget = imTarget; 1822 InputMethodManager imm = InputMethodManager.peekInstance(); 1823 if (imm != null && imTarget) { 1824 imm.startGettingWindowFocus(mView); 1825 imm.onWindowFocus(mView, mView.findFocus(), 1826 mWindowAttributes.softInputMode, 1827 !mHasHadWindowFocus, mWindowAttributes.flags); 1828 } 1829 } 1830 } 1831 1832 // Remember if we must report the next draw. 1833 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1834 mReportNextDraw = true; 1835 } 1836 1837 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1838 viewVisibility != View.VISIBLE; 1839 1840 if (!cancelDraw && !newSurface) { 1841 if (!skipDraw || mReportNextDraw) { 1842 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1843 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1844 mPendingTransitions.get(i).startChangingAnimations(); 1845 } 1846 mPendingTransitions.clear(); 1847 } 1848 1849 performDraw(); 1850 } 1851 } else { 1852 if (viewVisibility == View.VISIBLE) { 1853 // Try again 1854 scheduleTraversals(); 1855 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1856 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1857 mPendingTransitions.get(i).endChangingAnimations(); 1858 } 1859 mPendingTransitions.clear(); 1860 } 1861 } 1862 1863 mIsInTraversal = false; 1864 } 1865 1866 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1867 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1868 try { 1869 if (!mWindowSession.outOfMemory(mWindow) && 1870 Process.myUid() != Process.SYSTEM_UID) { 1871 Slog.w(TAG, "No processes killed for memory; killing self"); 1872 Process.killProcess(Process.myPid()); 1873 } 1874 } catch (RemoteException ex) { 1875 } 1876 mLayoutRequested = true; // ask wm for a new surface next time. 1877 } 1878 1879 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1880 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1881 try { 1882 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1883 } finally { 1884 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1885 } 1886 } 1887 1888 /** 1889 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1890 * is currently undergoing a layout pass. 1891 * 1892 * @return whether the view hierarchy is currently undergoing a layout pass 1893 */ 1894 boolean isInLayout() { 1895 return mInLayout; 1896 } 1897 1898 /** 1899 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1900 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1901 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1902 * all children in that container hierarchy are measured and laid out at the end of the layout 1903 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1904 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1905 * we check all of those views to see if any still have pending layout requests, which 1906 * indicates that they were not correctly handled by their container hierarchy. If that is 1907 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1908 * to blank containers, and force a second request/measure/layout pass in this frame. If 1909 * more requestLayout() calls are received during that second layout pass, we post those 1910 * requests to the next frame to avoid possible infinite loops. 1911 * 1912 * <p>The return value from this method indicates whether the request should proceed 1913 * (if it is a request during the first layout pass) or should be skipped and posted to the 1914 * next frame (if it is a request during the second layout pass).</p> 1915 * 1916 * @param view the view that requested the layout. 1917 * 1918 * @return true if request should proceed, false otherwise. 1919 */ 1920 boolean requestLayoutDuringLayout(final View view) { 1921 if (view.mParent == null || view.mAttachInfo == null) { 1922 // Would not normally trigger another layout, so just let it pass through as usual 1923 return true; 1924 } 1925 if (!mHandlingLayoutInLayoutRequest) { 1926 if (!mLayoutRequesters.contains(view)) { 1927 mLayoutRequesters.add(view); 1928 } 1929 return true; 1930 } else { 1931 Log.w("View", "requestLayout() called by " + view + " during second layout pass: " + 1932 "posting to next frame"); 1933 view.post(new Runnable() { 1934 @Override 1935 public void run() { 1936 view.requestLayout(); 1937 } 1938 }); 1939 return false; 1940 } 1941 } 1942 1943 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1944 int desiredWindowHeight) { 1945 mLayoutRequested = false; 1946 mScrollMayChange = true; 1947 mInLayout = true; 1948 1949 final View host = mView; 1950 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1951 Log.v(TAG, "Laying out " + host + " to (" + 1952 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1953 } 1954 1955 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1956 try { 1957 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1958 1959 mInLayout = false; 1960 int numViewsRequestingLayout = mLayoutRequesters.size(); 1961 if (numViewsRequestingLayout > 0) { 1962 // requestLayout() was called during layout. 1963 // If no layout-request flags are set on the requesting views, there is no problem. 1964 // If some requests are still pending, then we need to clear those flags and do 1965 // a full request/measure/layout pass to handle this situation. 1966 1967 // Check state of layout flags for all requesters 1968 ArrayList<View> mValidLayoutRequesters = null; 1969 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1970 View view = mLayoutRequesters.get(i); 1971 if ((view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == View.PFLAG_FORCE_LAYOUT) { 1972 while (view != null && view.mAttachInfo != null && view.mParent != null && 1973 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 1974 if ((view.mViewFlags & View.VISIBILITY_MASK) != View.GONE) { 1975 // Only trigger new requests for non-GONE views 1976 Log.w(TAG, "requestLayout() improperly called during " + 1977 "layout: running second layout pass for " + view); 1978 if (mValidLayoutRequesters == null) { 1979 mValidLayoutRequesters = new ArrayList<View>(); 1980 } 1981 mValidLayoutRequesters.add(view); 1982 break; 1983 } 1984 if (view.mParent instanceof View) { 1985 view = (View) view.mParent; 1986 } else { 1987 view = null; 1988 } 1989 } 1990 } 1991 } 1992 if (mValidLayoutRequesters != null) { 1993 // Clear flags throughout hierarchy, walking up from each flagged requester 1994 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1995 View view = mLayoutRequesters.get(i); 1996 while (view != null && 1997 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 1998 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 1999 if (view.mParent instanceof View) { 2000 view = (View) view.mParent; 2001 } else { 2002 view = null; 2003 } 2004 } 2005 } 2006 // Process fresh layout requests, then measure and layout 2007 mHandlingLayoutInLayoutRequest = true; 2008 int numValidRequests = mValidLayoutRequesters.size(); 2009 for (int i = 0; i < numValidRequests; ++i) { 2010 mValidLayoutRequesters.get(i).requestLayout(); 2011 } 2012 measureHierarchy(host, lp, mView.getContext().getResources(), 2013 desiredWindowWidth, desiredWindowHeight); 2014 mInLayout = true; 2015 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2016 mHandlingLayoutInLayoutRequest = false; 2017 } 2018 mLayoutRequesters.clear(); 2019 } 2020 } finally { 2021 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2022 } 2023 mInLayout = false; 2024 } 2025 2026 public void requestTransparentRegion(View child) { 2027 // the test below should not fail unless someone is messing with us 2028 checkThread(); 2029 if (mView == child) { 2030 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2031 // Need to make sure we re-evaluate the window attributes next 2032 // time around, to ensure the window has the correct format. 2033 mWindowAttributesChanged = true; 2034 mWindowAttributesChangesFlag = 0; 2035 requestLayout(); 2036 } 2037 } 2038 2039 /** 2040 * Figures out the measure spec for the root view in a window based on it's 2041 * layout params. 2042 * 2043 * @param windowSize 2044 * The available width or height of the window 2045 * 2046 * @param rootDimension 2047 * The layout params for one dimension (width or height) of the 2048 * window. 2049 * 2050 * @return The measure spec to use to measure the root view. 2051 */ 2052 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2053 int measureSpec; 2054 switch (rootDimension) { 2055 2056 case ViewGroup.LayoutParams.MATCH_PARENT: 2057 // Window can't resize. Force root view to be windowSize. 2058 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2059 break; 2060 case ViewGroup.LayoutParams.WRAP_CONTENT: 2061 // Window can resize. Set max size for root view. 2062 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2063 break; 2064 default: 2065 // Window wants to be an exact size. Force root view to be that size. 2066 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2067 break; 2068 } 2069 return measureSpec; 2070 } 2071 2072 int mHardwareYOffset; 2073 int mResizeAlpha; 2074 final Paint mResizePaint = new Paint(); 2075 2076 public void onHardwarePreDraw(HardwareCanvas canvas) { 2077 canvas.translate(0, -mHardwareYOffset); 2078 } 2079 2080 public void onHardwarePostDraw(HardwareCanvas canvas) { 2081 if (mResizeBuffer != null) { 2082 mResizePaint.setAlpha(mResizeAlpha); 2083 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2084 } 2085 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2086 } 2087 2088 /** 2089 * @hide 2090 */ 2091 void outputDisplayList(View view) { 2092 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2093 DisplayList displayList = view.getDisplayList(); 2094 if (displayList != null) { 2095 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2096 } 2097 } 2098 } 2099 2100 /** 2101 * @see #PROPERTY_PROFILE_RENDERING 2102 */ 2103 private void profileRendering(boolean enabled) { 2104 if (mProfileRendering) { 2105 mRenderProfilingEnabled = enabled; 2106 if (mRenderProfiler == null) { 2107 mRenderProfiler = new Choreographer.FrameCallback() { 2108 @Override 2109 public void doFrame(long frameTimeNanos) { 2110 mDirty.set(0, 0, mWidth, mHeight); 2111 scheduleTraversals(); 2112 if (mRenderProfilingEnabled) { 2113 mChoreographer.postFrameCallback(mRenderProfiler); 2114 } 2115 } 2116 }; 2117 mChoreographer.postFrameCallback(mRenderProfiler); 2118 } else { 2119 mChoreographer.removeFrameCallback(mRenderProfiler); 2120 mRenderProfiler = null; 2121 } 2122 } 2123 } 2124 2125 /** 2126 * Called from draw() when DEBUG_FPS is enabled 2127 */ 2128 private void trackFPS() { 2129 // Tracks frames per second drawn. First value in a series of draws may be bogus 2130 // because it down not account for the intervening idle time 2131 long nowTime = System.currentTimeMillis(); 2132 if (mFpsStartTime < 0) { 2133 mFpsStartTime = mFpsPrevTime = nowTime; 2134 mFpsNumFrames = 0; 2135 } else { 2136 ++mFpsNumFrames; 2137 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2138 long frameTime = nowTime - mFpsPrevTime; 2139 long totalTime = nowTime - mFpsStartTime; 2140 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2141 mFpsPrevTime = nowTime; 2142 if (totalTime > 1000) { 2143 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2144 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2145 mFpsStartTime = nowTime; 2146 mFpsNumFrames = 0; 2147 } 2148 } 2149 } 2150 2151 private void performDraw() { 2152 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2153 return; 2154 } 2155 2156 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2157 mFullRedrawNeeded = false; 2158 2159 mIsDrawing = true; 2160 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2161 try { 2162 draw(fullRedrawNeeded); 2163 } finally { 2164 mIsDrawing = false; 2165 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2166 } 2167 2168 if (mReportNextDraw) { 2169 mReportNextDraw = false; 2170 2171 if (LOCAL_LOGV) { 2172 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2173 } 2174 if (mSurfaceHolder != null && mSurface.isValid()) { 2175 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2176 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2177 if (callbacks != null) { 2178 for (SurfaceHolder.Callback c : callbacks) { 2179 if (c instanceof SurfaceHolder.Callback2) { 2180 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2181 mSurfaceHolder); 2182 } 2183 } 2184 } 2185 } 2186 try { 2187 mWindowSession.finishDrawing(mWindow); 2188 } catch (RemoteException e) { 2189 } 2190 } 2191 } 2192 2193 private void draw(boolean fullRedrawNeeded) { 2194 Surface surface = mSurface; 2195 if (!surface.isValid()) { 2196 return; 2197 } 2198 2199 if (DEBUG_FPS) { 2200 trackFPS(); 2201 } 2202 2203 if (!sFirstDrawComplete) { 2204 synchronized (sFirstDrawHandlers) { 2205 sFirstDrawComplete = true; 2206 final int count = sFirstDrawHandlers.size(); 2207 for (int i = 0; i< count; i++) { 2208 mHandler.post(sFirstDrawHandlers.get(i)); 2209 } 2210 } 2211 } 2212 2213 scrollToRectOrFocus(null, false); 2214 2215 final AttachInfo attachInfo = mAttachInfo; 2216 if (attachInfo.mViewScrollChanged) { 2217 attachInfo.mViewScrollChanged = false; 2218 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2219 } 2220 2221 int yoff; 2222 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2223 if (animating) { 2224 yoff = mScroller.getCurrY(); 2225 } else { 2226 yoff = mScrollY; 2227 } 2228 if (mCurScrollY != yoff) { 2229 mCurScrollY = yoff; 2230 fullRedrawNeeded = true; 2231 } 2232 2233 final float appScale = attachInfo.mApplicationScale; 2234 final boolean scalingRequired = attachInfo.mScalingRequired; 2235 2236 int resizeAlpha = 0; 2237 if (mResizeBuffer != null) { 2238 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2239 if (deltaTime < mResizeBufferDuration) { 2240 float amt = deltaTime/(float) mResizeBufferDuration; 2241 amt = mResizeInterpolator.getInterpolation(amt); 2242 animating = true; 2243 resizeAlpha = 255 - (int)(amt*255); 2244 } else { 2245 disposeResizeBuffer(); 2246 } 2247 } 2248 2249 final Rect dirty = mDirty; 2250 if (mSurfaceHolder != null) { 2251 // The app owns the surface, we won't draw. 2252 dirty.setEmpty(); 2253 if (animating) { 2254 if (mScroller != null) { 2255 mScroller.abortAnimation(); 2256 } 2257 disposeResizeBuffer(); 2258 } 2259 return; 2260 } 2261 2262 if (fullRedrawNeeded) { 2263 attachInfo.mIgnoreDirtyState = true; 2264 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2265 } 2266 2267 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2268 Log.v(TAG, "Draw " + mView + "/" 2269 + mWindowAttributes.getTitle() 2270 + ": dirty={" + dirty.left + "," + dirty.top 2271 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2272 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2273 appScale + ", width=" + mWidth + ", height=" + mHeight); 2274 } 2275 2276 invalidateDisplayLists(); 2277 2278 attachInfo.mTreeObserver.dispatchOnDraw(); 2279 2280 if (!dirty.isEmpty() || mIsAnimating) { 2281 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2282 // Draw with hardware renderer. 2283 mIsAnimating = false; 2284 mHardwareYOffset = yoff; 2285 mResizeAlpha = resizeAlpha; 2286 2287 mCurrentDirty.set(dirty); 2288 mCurrentDirty.union(mPreviousDirty); 2289 mPreviousDirty.set(dirty); 2290 dirty.setEmpty(); 2291 2292 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2293 animating ? null : mCurrentDirty)) { 2294 mPreviousDirty.set(0, 0, mWidth, mHeight); 2295 } 2296 } else { 2297 // If we get here with a disabled & requested hardware renderer, something went 2298 // wrong (an invalidate posted right before we destroyed the hardware surface 2299 // for instance) so we should just bail out. Locking the surface with software 2300 // rendering at this point would lock it forever and prevent hardware renderer 2301 // from doing its job when it comes back. 2302 // Before we request a new frame we must however attempt to reinitiliaze the 2303 // hardware renderer if it's in requested state. This would happen after an 2304 // eglTerminate() for instance. 2305 if (attachInfo.mHardwareRenderer != null && 2306 !attachInfo.mHardwareRenderer.isEnabled() && 2307 attachInfo.mHardwareRenderer.isRequested()) { 2308 2309 try { 2310 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2311 mHolder.getSurface()); 2312 } catch (Surface.OutOfResourcesException e) { 2313 handleOutOfResourcesException(e); 2314 return; 2315 } 2316 2317 mFullRedrawNeeded = true; 2318 scheduleTraversals(); 2319 return; 2320 } 2321 2322 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2323 return; 2324 } 2325 } 2326 } 2327 2328 if (animating) { 2329 mFullRedrawNeeded = true; 2330 scheduleTraversals(); 2331 } 2332 } 2333 2334 /** 2335 * @return true if drawing was succesfull, false if an error occurred 2336 */ 2337 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2338 boolean scalingRequired, Rect dirty) { 2339 2340 // Draw with software renderer. 2341 Canvas canvas; 2342 try { 2343 int left = dirty.left; 2344 int top = dirty.top; 2345 int right = dirty.right; 2346 int bottom = dirty.bottom; 2347 2348 canvas = mSurface.lockCanvas(dirty); 2349 2350 if (left != dirty.left || top != dirty.top || right != dirty.right || 2351 bottom != dirty.bottom) { 2352 attachInfo.mIgnoreDirtyState = true; 2353 } 2354 2355 // TODO: Do this in native 2356 canvas.setDensity(mDensity); 2357 } catch (Surface.OutOfResourcesException e) { 2358 handleOutOfResourcesException(e); 2359 return false; 2360 } catch (IllegalArgumentException e) { 2361 Log.e(TAG, "Could not lock surface", e); 2362 // Don't assume this is due to out of memory, it could be 2363 // something else, and if it is something else then we could 2364 // kill stuff (or ourself) for no reason. 2365 mLayoutRequested = true; // ask wm for a new surface next time. 2366 return false; 2367 } 2368 2369 try { 2370 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2371 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2372 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2373 //canvas.drawARGB(255, 255, 0, 0); 2374 } 2375 2376 // If this bitmap's format includes an alpha channel, we 2377 // need to clear it before drawing so that the child will 2378 // properly re-composite its drawing on a transparent 2379 // background. This automatically respects the clip/dirty region 2380 // or 2381 // If we are applying an offset, we need to clear the area 2382 // where the offset doesn't appear to avoid having garbage 2383 // left in the blank areas. 2384 if (!canvas.isOpaque() || yoff != 0) { 2385 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2386 } 2387 2388 dirty.setEmpty(); 2389 mIsAnimating = false; 2390 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2391 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2392 2393 if (DEBUG_DRAW) { 2394 Context cxt = mView.getContext(); 2395 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2396 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2397 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2398 } 2399 try { 2400 canvas.translate(0, -yoff); 2401 if (mTranslator != null) { 2402 mTranslator.translateCanvas(canvas); 2403 } 2404 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2405 attachInfo.mSetIgnoreDirtyState = false; 2406 2407 mView.draw(canvas); 2408 2409 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2410 } finally { 2411 if (!attachInfo.mSetIgnoreDirtyState) { 2412 // Only clear the flag if it was not set during the mView.draw() call 2413 attachInfo.mIgnoreDirtyState = false; 2414 } 2415 } 2416 } finally { 2417 try { 2418 surface.unlockCanvasAndPost(canvas); 2419 } catch (IllegalArgumentException e) { 2420 Log.e(TAG, "Could not unlock surface", e); 2421 mLayoutRequested = true; // ask wm for a new surface next time. 2422 //noinspection ReturnInsideFinallyBlock 2423 return false; 2424 } 2425 2426 if (LOCAL_LOGV) { 2427 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2428 } 2429 } 2430 return true; 2431 } 2432 2433 /** 2434 * We want to draw a highlight around the current accessibility focused. 2435 * Since adding a style for all possible view is not a viable option we 2436 * have this specialized drawing method. 2437 * 2438 * Note: We are doing this here to be able to draw the highlight for 2439 * virtual views in addition to real ones. 2440 * 2441 * @param canvas The canvas on which to draw. 2442 */ 2443 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2444 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2445 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2446 return; 2447 } 2448 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2449 return; 2450 } 2451 Drawable drawable = getAccessibilityFocusedDrawable(); 2452 if (drawable == null) { 2453 return; 2454 } 2455 AccessibilityNodeProvider provider = 2456 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2457 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2458 if (provider == null) { 2459 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2460 } else { 2461 if (mAccessibilityFocusedVirtualView == null) { 2462 return; 2463 } 2464 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2465 } 2466 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2467 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2468 drawable.setBounds(bounds); 2469 drawable.draw(canvas); 2470 } 2471 2472 private Drawable getAccessibilityFocusedDrawable() { 2473 if (mAttachInfo != null) { 2474 // Lazily load the accessibility focus drawable. 2475 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2476 TypedValue value = new TypedValue(); 2477 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2478 R.attr.accessibilityFocusedDrawable, value, true); 2479 if (resolved) { 2480 mAttachInfo.mAccessibilityFocusDrawable = 2481 mView.mContext.getResources().getDrawable(value.resourceId); 2482 } 2483 } 2484 return mAttachInfo.mAccessibilityFocusDrawable; 2485 } 2486 return null; 2487 } 2488 2489 void invalidateDisplayLists() { 2490 final ArrayList<DisplayList> displayLists = mDisplayLists; 2491 final int count = displayLists.size(); 2492 2493 for (int i = 0; i < count; i++) { 2494 final DisplayList displayList = displayLists.get(i); 2495 if (displayList.isDirty()) { 2496 displayList.invalidate(); 2497 displayList.clear(); 2498 displayList.setDirty(false); 2499 } 2500 } 2501 2502 displayLists.clear(); 2503 } 2504 2505 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2506 final View.AttachInfo attachInfo = mAttachInfo; 2507 final Rect ci = attachInfo.mContentInsets; 2508 final Rect vi = attachInfo.mVisibleInsets; 2509 int scrollY = 0; 2510 boolean handled = false; 2511 2512 if (vi.left > ci.left || vi.top > ci.top 2513 || vi.right > ci.right || vi.bottom > ci.bottom) { 2514 // We'll assume that we aren't going to change the scroll 2515 // offset, since we want to avoid that unless it is actually 2516 // going to make the focus visible... otherwise we scroll 2517 // all over the place. 2518 scrollY = mScrollY; 2519 // We can be called for two different situations: during a draw, 2520 // to update the scroll position if the focus has changed (in which 2521 // case 'rectangle' is null), or in response to a 2522 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2523 // is non-null and we just want to scroll to whatever that 2524 // rectangle is). 2525 View focus = mView.findFocus(); 2526 if (focus == null) { 2527 return false; 2528 } 2529 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2530 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2531 // If the focus has changed, then ignore any requests to scroll 2532 // to a rectangle; first we want to make sure the entire focus 2533 // view is visible. 2534 rectangle = null; 2535 } 2536 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2537 + " rectangle=" + rectangle + " ci=" + ci 2538 + " vi=" + vi); 2539 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2540 // Optimization: if the focus hasn't changed since last 2541 // time, and no layout has happened, then just leave things 2542 // as they are. 2543 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2544 + mScrollY + " vi=" + vi.toShortString()); 2545 } else if (focus != null) { 2546 // We need to determine if the currently focused view is 2547 // within the visible part of the window and, if not, apply 2548 // a pan so it can be seen. 2549 mLastScrolledFocus = new WeakReference<View>(focus); 2550 mScrollMayChange = false; 2551 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2552 // Try to find the rectangle from the focus view. 2553 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2554 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2555 + mView.getWidth() + " h=" + mView.getHeight() 2556 + " ci=" + ci.toShortString() 2557 + " vi=" + vi.toShortString()); 2558 if (rectangle == null) { 2559 focus.getFocusedRect(mTempRect); 2560 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2561 + ": focusRect=" + mTempRect.toShortString()); 2562 if (mView instanceof ViewGroup) { 2563 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2564 focus, mTempRect); 2565 } 2566 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2567 "Focus in window: focusRect=" 2568 + mTempRect.toShortString() 2569 + " visRect=" + mVisRect.toShortString()); 2570 } else { 2571 mTempRect.set(rectangle); 2572 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2573 "Request scroll to rect: " 2574 + mTempRect.toShortString() 2575 + " visRect=" + mVisRect.toShortString()); 2576 } 2577 if (mTempRect.intersect(mVisRect)) { 2578 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2579 "Focus window visible rect: " 2580 + mTempRect.toShortString()); 2581 if (mTempRect.height() > 2582 (mView.getHeight()-vi.top-vi.bottom)) { 2583 // If the focus simply is not going to fit, then 2584 // best is probably just to leave things as-is. 2585 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2586 "Too tall; leaving scrollY=" + scrollY); 2587 } else if ((mTempRect.top-scrollY) < vi.top) { 2588 scrollY -= vi.top - (mTempRect.top-scrollY); 2589 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2590 "Top covered; scrollY=" + scrollY); 2591 } else if ((mTempRect.bottom-scrollY) 2592 > (mView.getHeight()-vi.bottom)) { 2593 scrollY += (mTempRect.bottom-scrollY) 2594 - (mView.getHeight()-vi.bottom); 2595 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2596 "Bottom covered; scrollY=" + scrollY); 2597 } 2598 handled = true; 2599 } 2600 } 2601 } 2602 } 2603 2604 if (scrollY != mScrollY) { 2605 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2606 + mScrollY + " , new=" + scrollY); 2607 if (!immediate && mResizeBuffer == null) { 2608 if (mScroller == null) { 2609 mScroller = new Scroller(mView.getContext()); 2610 } 2611 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2612 } else if (mScroller != null) { 2613 mScroller.abortAnimation(); 2614 } 2615 mScrollY = scrollY; 2616 } 2617 2618 return handled; 2619 } 2620 2621 /** 2622 * @hide 2623 */ 2624 public View getAccessibilityFocusedHost() { 2625 return mAccessibilityFocusedHost; 2626 } 2627 2628 /** 2629 * @hide 2630 */ 2631 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2632 return mAccessibilityFocusedVirtualView; 2633 } 2634 2635 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2636 // If we have a virtual view with accessibility focus we need 2637 // to clear the focus and invalidate the virtual view bounds. 2638 if (mAccessibilityFocusedVirtualView != null) { 2639 2640 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2641 View focusHost = mAccessibilityFocusedHost; 2642 focusHost.clearAccessibilityFocusNoCallbacks(); 2643 2644 // Wipe the state of the current accessibility focus since 2645 // the call into the provider to clear accessibility focus 2646 // will fire an accessibility event which will end up calling 2647 // this method and we want to have clean state when this 2648 // invocation happens. 2649 mAccessibilityFocusedHost = null; 2650 mAccessibilityFocusedVirtualView = null; 2651 2652 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2653 if (provider != null) { 2654 // Invalidate the area of the cleared accessibility focus. 2655 focusNode.getBoundsInParent(mTempRect); 2656 focusHost.invalidate(mTempRect); 2657 // Clear accessibility focus in the virtual node. 2658 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2659 focusNode.getSourceNodeId()); 2660 provider.performAction(virtualNodeId, 2661 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2662 } 2663 focusNode.recycle(); 2664 } 2665 if (mAccessibilityFocusedHost != null) { 2666 // Clear accessibility focus in the view. 2667 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2668 } 2669 2670 // Set the new focus host and node. 2671 mAccessibilityFocusedHost = view; 2672 mAccessibilityFocusedVirtualView = node; 2673 } 2674 2675 public void requestChildFocus(View child, View focused) { 2676 if (DEBUG_INPUT_RESIZE) { 2677 Log.v(TAG, "Request child focus: focus now " + focused); 2678 } 2679 checkThread(); 2680 scheduleTraversals(); 2681 } 2682 2683 public void clearChildFocus(View child) { 2684 if (DEBUG_INPUT_RESIZE) { 2685 Log.v(TAG, "Clearing child focus"); 2686 } 2687 checkThread(); 2688 scheduleTraversals(); 2689 } 2690 2691 @Override 2692 public ViewParent getParentForAccessibility() { 2693 return null; 2694 } 2695 2696 public void focusableViewAvailable(View v) { 2697 checkThread(); 2698 if (mView != null) { 2699 if (!mView.hasFocus()) { 2700 v.requestFocus(); 2701 } else { 2702 // the one case where will transfer focus away from the current one 2703 // is if the current view is a view group that prefers to give focus 2704 // to its children first AND the view is a descendant of it. 2705 View focused = mView.findFocus(); 2706 if (focused instanceof ViewGroup) { 2707 ViewGroup group = (ViewGroup) focused; 2708 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2709 && isViewDescendantOf(v, focused)) { 2710 v.requestFocus(); 2711 } 2712 } 2713 } 2714 } 2715 } 2716 2717 public void recomputeViewAttributes(View child) { 2718 checkThread(); 2719 if (mView == child) { 2720 mAttachInfo.mRecomputeGlobalAttributes = true; 2721 if (!mWillDrawSoon) { 2722 scheduleTraversals(); 2723 } 2724 } 2725 } 2726 2727 void dispatchDetachedFromWindow() { 2728 if (mView != null && mView.mAttachInfo != null) { 2729 if (mAttachInfo.mHardwareRenderer != null && 2730 mAttachInfo.mHardwareRenderer.isEnabled()) { 2731 mAttachInfo.mHardwareRenderer.validate(); 2732 } 2733 mView.dispatchDetachedFromWindow(); 2734 } 2735 2736 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2737 mAccessibilityManager.removeAccessibilityStateChangeListener( 2738 mAccessibilityInteractionConnectionManager); 2739 removeSendWindowContentChangedCallback(); 2740 2741 destroyHardwareRenderer(); 2742 2743 setAccessibilityFocus(null, null); 2744 2745 mView = null; 2746 mAttachInfo.mRootView = null; 2747 mAttachInfo.mSurface = null; 2748 2749 mSurface.release(); 2750 2751 if (mInputQueueCallback != null && mInputQueue != null) { 2752 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2753 mInputQueueCallback = null; 2754 mInputQueue = null; 2755 } else if (mInputEventReceiver != null) { 2756 mInputEventReceiver.dispose(); 2757 mInputEventReceiver = null; 2758 } 2759 try { 2760 mWindowSession.remove(mWindow); 2761 } catch (RemoteException e) { 2762 } 2763 2764 // Dispose the input channel after removing the window so the Window Manager 2765 // doesn't interpret the input channel being closed as an abnormal termination. 2766 if (mInputChannel != null) { 2767 mInputChannel.dispose(); 2768 mInputChannel = null; 2769 } 2770 2771 unscheduleTraversals(); 2772 } 2773 2774 void updateConfiguration(Configuration config, boolean force) { 2775 if (DEBUG_CONFIGURATION) Log.v(TAG, 2776 "Applying new config to window " 2777 + mWindowAttributes.getTitle() 2778 + ": " + config); 2779 2780 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2781 if (ci != null) { 2782 config = new Configuration(config); 2783 ci.applyToConfiguration(mNoncompatDensity, config); 2784 } 2785 2786 synchronized (sConfigCallbacks) { 2787 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2788 sConfigCallbacks.get(i).onConfigurationChanged(config); 2789 } 2790 } 2791 if (mView != null) { 2792 // At this point the resources have been updated to 2793 // have the most recent config, whatever that is. Use 2794 // the one in them which may be newer. 2795 config = mView.getResources().getConfiguration(); 2796 if (force || mLastConfiguration.diff(config) != 0) { 2797 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2798 final int currentLayoutDirection = config.getLayoutDirection(); 2799 mLastConfiguration.setTo(config); 2800 if (lastLayoutDirection != currentLayoutDirection && 2801 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2802 mView.setLayoutDirection(currentLayoutDirection); 2803 } 2804 mView.dispatchConfigurationChanged(config); 2805 } 2806 } 2807 } 2808 2809 /** 2810 * Return true if child is an ancestor of parent, (or equal to the parent). 2811 */ 2812 public static boolean isViewDescendantOf(View child, View parent) { 2813 if (child == parent) { 2814 return true; 2815 } 2816 2817 final ViewParent theParent = child.getParent(); 2818 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2819 } 2820 2821 private static void forceLayout(View view) { 2822 view.forceLayout(); 2823 if (view instanceof ViewGroup) { 2824 ViewGroup group = (ViewGroup) view; 2825 final int count = group.getChildCount(); 2826 for (int i = 0; i < count; i++) { 2827 forceLayout(group.getChildAt(i)); 2828 } 2829 } 2830 } 2831 2832 private final static int MSG_INVALIDATE = 1; 2833 private final static int MSG_INVALIDATE_RECT = 2; 2834 private final static int MSG_DIE = 3; 2835 private final static int MSG_RESIZED = 4; 2836 private final static int MSG_RESIZED_REPORT = 5; 2837 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2838 private final static int MSG_DISPATCH_KEY = 7; 2839 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2840 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2841 private final static int MSG_IME_FINISHED_EVENT = 10; 2842 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2843 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2844 private final static int MSG_CHECK_FOCUS = 13; 2845 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2846 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2847 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2848 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2849 private final static int MSG_UPDATE_CONFIGURATION = 18; 2850 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2851 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2852 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2853 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2854 private final static int MSG_INVALIDATE_WORLD = 23; 2855 private final static int MSG_WINDOW_MOVED = 24; 2856 2857 final class ViewRootHandler extends Handler { 2858 @Override 2859 public String getMessageName(Message message) { 2860 switch (message.what) { 2861 case MSG_INVALIDATE: 2862 return "MSG_INVALIDATE"; 2863 case MSG_INVALIDATE_RECT: 2864 return "MSG_INVALIDATE_RECT"; 2865 case MSG_DIE: 2866 return "MSG_DIE"; 2867 case MSG_RESIZED: 2868 return "MSG_RESIZED"; 2869 case MSG_RESIZED_REPORT: 2870 return "MSG_RESIZED_REPORT"; 2871 case MSG_WINDOW_FOCUS_CHANGED: 2872 return "MSG_WINDOW_FOCUS_CHANGED"; 2873 case MSG_DISPATCH_KEY: 2874 return "MSG_DISPATCH_KEY"; 2875 case MSG_DISPATCH_APP_VISIBILITY: 2876 return "MSG_DISPATCH_APP_VISIBILITY"; 2877 case MSG_DISPATCH_GET_NEW_SURFACE: 2878 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2879 case MSG_IME_FINISHED_EVENT: 2880 return "MSG_IME_FINISHED_EVENT"; 2881 case MSG_DISPATCH_KEY_FROM_IME: 2882 return "MSG_DISPATCH_KEY_FROM_IME"; 2883 case MSG_FINISH_INPUT_CONNECTION: 2884 return "MSG_FINISH_INPUT_CONNECTION"; 2885 case MSG_CHECK_FOCUS: 2886 return "MSG_CHECK_FOCUS"; 2887 case MSG_CLOSE_SYSTEM_DIALOGS: 2888 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2889 case MSG_DISPATCH_DRAG_EVENT: 2890 return "MSG_DISPATCH_DRAG_EVENT"; 2891 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2892 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2893 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2894 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2895 case MSG_UPDATE_CONFIGURATION: 2896 return "MSG_UPDATE_CONFIGURATION"; 2897 case MSG_PROCESS_INPUT_EVENTS: 2898 return "MSG_PROCESS_INPUT_EVENTS"; 2899 case MSG_DISPATCH_SCREEN_STATE: 2900 return "MSG_DISPATCH_SCREEN_STATE"; 2901 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2902 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2903 case MSG_DISPATCH_DONE_ANIMATING: 2904 return "MSG_DISPATCH_DONE_ANIMATING"; 2905 case MSG_WINDOW_MOVED: 2906 return "MSG_WINDOW_MOVED"; 2907 } 2908 return super.getMessageName(message); 2909 } 2910 2911 @Override 2912 public void handleMessage(Message msg) { 2913 switch (msg.what) { 2914 case MSG_INVALIDATE: 2915 ((View) msg.obj).invalidate(); 2916 break; 2917 case MSG_INVALIDATE_RECT: 2918 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2919 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2920 info.recycle(); 2921 break; 2922 case MSG_IME_FINISHED_EVENT: 2923 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2924 break; 2925 case MSG_PROCESS_INPUT_EVENTS: 2926 mProcessInputEventsScheduled = false; 2927 doProcessInputEvents(); 2928 break; 2929 case MSG_DISPATCH_APP_VISIBILITY: 2930 handleAppVisibility(msg.arg1 != 0); 2931 break; 2932 case MSG_DISPATCH_GET_NEW_SURFACE: 2933 handleGetNewSurface(); 2934 break; 2935 case MSG_RESIZED: { 2936 // Recycled in the fall through... 2937 SomeArgs args = (SomeArgs) msg.obj; 2938 if (mWinFrame.equals(args.arg1) 2939 && mPendingContentInsets.equals(args.arg2) 2940 && mPendingVisibleInsets.equals(args.arg3) 2941 && args.arg4 == null) { 2942 break; 2943 } 2944 } // fall through... 2945 case MSG_RESIZED_REPORT: 2946 if (mAdded) { 2947 SomeArgs args = (SomeArgs) msg.obj; 2948 2949 Configuration config = (Configuration) args.arg4; 2950 if (config != null) { 2951 updateConfiguration(config, false); 2952 } 2953 2954 mWinFrame.set((Rect) args.arg1); 2955 mPendingContentInsets.set((Rect) args.arg2); 2956 mPendingVisibleInsets.set((Rect) args.arg3); 2957 2958 args.recycle(); 2959 2960 if (msg.what == MSG_RESIZED_REPORT) { 2961 mReportNextDraw = true; 2962 } 2963 2964 if (mView != null) { 2965 forceLayout(mView); 2966 } 2967 2968 requestLayout(); 2969 } 2970 break; 2971 case MSG_WINDOW_MOVED: 2972 if (mAdded) { 2973 final int w = mWinFrame.width(); 2974 final int h = mWinFrame.height(); 2975 final int l = msg.arg1; 2976 final int t = msg.arg2; 2977 mWinFrame.left = l; 2978 mWinFrame.right = l + w; 2979 mWinFrame.top = t; 2980 mWinFrame.bottom = t + h; 2981 2982 if (mView != null) { 2983 forceLayout(mView); 2984 } 2985 requestLayout(); 2986 } 2987 break; 2988 case MSG_WINDOW_FOCUS_CHANGED: { 2989 if (mAdded) { 2990 boolean hasWindowFocus = msg.arg1 != 0; 2991 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2992 2993 profileRendering(hasWindowFocus); 2994 2995 if (hasWindowFocus) { 2996 boolean inTouchMode = msg.arg2 != 0; 2997 ensureTouchModeLocally(inTouchMode); 2998 2999 if (mAttachInfo.mHardwareRenderer != null && 3000 mSurface != null && mSurface.isValid()) { 3001 mFullRedrawNeeded = true; 3002 try { 3003 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3004 mWidth, mHeight, mHolder.getSurface()); 3005 } catch (Surface.OutOfResourcesException e) { 3006 Log.e(TAG, "OutOfResourcesException locking surface", e); 3007 try { 3008 if (!mWindowSession.outOfMemory(mWindow)) { 3009 Slog.w(TAG, "No processes killed for memory; killing self"); 3010 Process.killProcess(Process.myPid()); 3011 } 3012 } catch (RemoteException ex) { 3013 } 3014 // Retry in a bit. 3015 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3016 return; 3017 } 3018 } 3019 } 3020 3021 mLastWasImTarget = WindowManager.LayoutParams 3022 .mayUseInputMethod(mWindowAttributes.flags); 3023 3024 InputMethodManager imm = InputMethodManager.peekInstance(); 3025 if (mView != null) { 3026 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3027 imm.startGettingWindowFocus(mView); 3028 } 3029 mAttachInfo.mKeyDispatchState.reset(); 3030 mView.dispatchWindowFocusChanged(hasWindowFocus); 3031 } 3032 3033 // Note: must be done after the focus change callbacks, 3034 // so all of the view state is set up correctly. 3035 if (hasWindowFocus) { 3036 if (imm != null && mLastWasImTarget) { 3037 imm.onWindowFocus(mView, mView.findFocus(), 3038 mWindowAttributes.softInputMode, 3039 !mHasHadWindowFocus, mWindowAttributes.flags); 3040 } 3041 // Clear the forward bit. We can just do this directly, since 3042 // the window manager doesn't care about it. 3043 mWindowAttributes.softInputMode &= 3044 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3045 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3046 .softInputMode &= 3047 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3048 mHasHadWindowFocus = true; 3049 } 3050 3051 setAccessibilityFocus(null, null); 3052 3053 if (mView != null && mAccessibilityManager.isEnabled()) { 3054 if (hasWindowFocus) { 3055 mView.sendAccessibilityEvent( 3056 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3057 } 3058 } 3059 } 3060 } break; 3061 case MSG_DIE: 3062 doDie(); 3063 break; 3064 case MSG_DISPATCH_KEY: { 3065 KeyEvent event = (KeyEvent)msg.obj; 3066 enqueueInputEvent(event, null, 0, true); 3067 } break; 3068 case MSG_DISPATCH_KEY_FROM_IME: { 3069 if (LOCAL_LOGV) Log.v( 3070 TAG, "Dispatching key " 3071 + msg.obj + " from IME to " + mView); 3072 KeyEvent event = (KeyEvent)msg.obj; 3073 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3074 // The IME is trying to say this event is from the 3075 // system! Bad bad bad! 3076 //noinspection UnusedAssignment 3077 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3078 } 3079 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3080 } break; 3081 case MSG_FINISH_INPUT_CONNECTION: { 3082 InputMethodManager imm = InputMethodManager.peekInstance(); 3083 if (imm != null) { 3084 imm.reportFinishInputConnection((InputConnection)msg.obj); 3085 } 3086 } break; 3087 case MSG_CHECK_FOCUS: { 3088 InputMethodManager imm = InputMethodManager.peekInstance(); 3089 if (imm != null) { 3090 imm.checkFocus(); 3091 } 3092 } break; 3093 case MSG_CLOSE_SYSTEM_DIALOGS: { 3094 if (mView != null) { 3095 mView.onCloseSystemDialogs((String)msg.obj); 3096 } 3097 } break; 3098 case MSG_DISPATCH_DRAG_EVENT: 3099 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3100 DragEvent event = (DragEvent)msg.obj; 3101 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3102 handleDragEvent(event); 3103 } break; 3104 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3105 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3106 } break; 3107 case MSG_UPDATE_CONFIGURATION: { 3108 Configuration config = (Configuration)msg.obj; 3109 if (config.isOtherSeqNewer(mLastConfiguration)) { 3110 config = mLastConfiguration; 3111 } 3112 updateConfiguration(config, false); 3113 } break; 3114 case MSG_DISPATCH_SCREEN_STATE: { 3115 if (mView != null) { 3116 handleScreenStateChange(msg.arg1 == 1); 3117 } 3118 } break; 3119 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3120 setAccessibilityFocus(null, null); 3121 } break; 3122 case MSG_DISPATCH_DONE_ANIMATING: { 3123 handleDispatchDoneAnimating(); 3124 } break; 3125 case MSG_INVALIDATE_WORLD: { 3126 if (mView != null) { 3127 invalidateWorld(mView); 3128 } 3129 } break; 3130 } 3131 } 3132 } 3133 3134 final ViewRootHandler mHandler = new ViewRootHandler(); 3135 3136 /** 3137 * Something in the current window tells us we need to change the touch mode. For 3138 * example, we are not in touch mode, and the user touches the screen. 3139 * 3140 * If the touch mode has changed, tell the window manager, and handle it locally. 3141 * 3142 * @param inTouchMode Whether we want to be in touch mode. 3143 * @return True if the touch mode changed and focus changed was changed as a result 3144 */ 3145 boolean ensureTouchMode(boolean inTouchMode) { 3146 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3147 + "touch mode is " + mAttachInfo.mInTouchMode); 3148 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3149 3150 // tell the window manager 3151 try { 3152 mWindowSession.setInTouchMode(inTouchMode); 3153 } catch (RemoteException e) { 3154 throw new RuntimeException(e); 3155 } 3156 3157 // handle the change 3158 return ensureTouchModeLocally(inTouchMode); 3159 } 3160 3161 /** 3162 * Ensure that the touch mode for this window is set, and if it is changing, 3163 * take the appropriate action. 3164 * @param inTouchMode Whether we want to be in touch mode. 3165 * @return True if the touch mode changed and focus changed was changed as a result 3166 */ 3167 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3168 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3169 + "touch mode is " + mAttachInfo.mInTouchMode); 3170 3171 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3172 3173 mAttachInfo.mInTouchMode = inTouchMode; 3174 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3175 3176 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3177 } 3178 3179 private boolean enterTouchMode() { 3180 if (mView != null) { 3181 if (mView.hasFocus()) { 3182 // note: not relying on mFocusedView here because this could 3183 // be when the window is first being added, and mFocused isn't 3184 // set yet. 3185 final View focused = mView.findFocus(); 3186 if (focused != null && !focused.isFocusableInTouchMode()) { 3187 final ViewGroup ancestorToTakeFocus = 3188 findAncestorToTakeFocusInTouchMode(focused); 3189 if (ancestorToTakeFocus != null) { 3190 // there is an ancestor that wants focus after its descendants that 3191 // is focusable in touch mode.. give it focus 3192 return ancestorToTakeFocus.requestFocus(); 3193 } else { 3194 // nothing appropriate to have focus in touch mode, clear it out 3195 focused.unFocus(); 3196 return true; 3197 } 3198 } 3199 } 3200 } 3201 return false; 3202 } 3203 3204 /** 3205 * Find an ancestor of focused that wants focus after its descendants and is 3206 * focusable in touch mode. 3207 * @param focused The currently focused view. 3208 * @return An appropriate view, or null if no such view exists. 3209 */ 3210 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3211 ViewParent parent = focused.getParent(); 3212 while (parent instanceof ViewGroup) { 3213 final ViewGroup vgParent = (ViewGroup) parent; 3214 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3215 && vgParent.isFocusableInTouchMode()) { 3216 return vgParent; 3217 } 3218 if (vgParent.isRootNamespace()) { 3219 return null; 3220 } else { 3221 parent = vgParent.getParent(); 3222 } 3223 } 3224 return null; 3225 } 3226 3227 private boolean leaveTouchMode() { 3228 if (mView != null) { 3229 if (mView.hasFocus()) { 3230 View focusedView = mView.findFocus(); 3231 if (!(focusedView instanceof ViewGroup)) { 3232 // some view has focus, let it keep it 3233 return false; 3234 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3235 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3236 // some view group has focus, and doesn't prefer its children 3237 // over itself for focus, so let them keep it. 3238 return false; 3239 } 3240 } 3241 3242 // find the best view to give focus to in this brave new non-touch-mode 3243 // world 3244 final View focused = focusSearch(null, View.FOCUS_DOWN); 3245 if (focused != null) { 3246 return focused.requestFocus(View.FOCUS_DOWN); 3247 } 3248 } 3249 return false; 3250 } 3251 3252 private int deliverInputEvent(QueuedInputEvent q) { 3253 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3254 try { 3255 if (q.mEvent instanceof KeyEvent) { 3256 return deliverKeyEvent(q); 3257 } else { 3258 final int source = q.mEvent.getSource(); 3259 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3260 return deliverPointerEvent(q); 3261 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3262 return deliverTrackballEvent(q); 3263 } else { 3264 return deliverGenericMotionEvent(q); 3265 } 3266 } 3267 } finally { 3268 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3269 } 3270 } 3271 3272 private int deliverInputEventPostIme(QueuedInputEvent q) { 3273 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3274 try { 3275 if (q.mEvent instanceof KeyEvent) { 3276 return deliverKeyEventPostIme(q); 3277 } else { 3278 final int source = q.mEvent.getSource(); 3279 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3280 return deliverTrackballEventPostIme(q); 3281 } else { 3282 return deliverGenericMotionEventPostIme(q); 3283 } 3284 } 3285 } finally { 3286 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3287 } 3288 } 3289 3290 private int deliverPointerEvent(QueuedInputEvent q) { 3291 final MotionEvent event = (MotionEvent)q.mEvent; 3292 final boolean isTouchEvent = event.isTouchEvent(); 3293 if (mInputEventConsistencyVerifier != null) { 3294 if (isTouchEvent) { 3295 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3296 } else { 3297 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3298 } 3299 } 3300 3301 // If there is no view, then the event will not be handled. 3302 if (mView == null || !mAdded) { 3303 return EVENT_NOT_HANDLED; 3304 } 3305 3306 // Translate the pointer event for compatibility, if needed. 3307 if (mTranslator != null) { 3308 mTranslator.translateEventInScreenToAppWindow(event); 3309 } 3310 3311 // Enter touch mode on down or scroll. 3312 final int action = event.getAction(); 3313 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3314 ensureTouchMode(true); 3315 } 3316 3317 // Offset the scroll position. 3318 if (mCurScrollY != 0) { 3319 event.offsetLocation(0, mCurScrollY); 3320 } 3321 if (MEASURE_LATENCY) { 3322 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3323 } 3324 3325 // Remember the touch position for possible drag-initiation. 3326 if (isTouchEvent) { 3327 mLastTouchPoint.x = event.getRawX(); 3328 mLastTouchPoint.y = event.getRawY(); 3329 } 3330 3331 // Dispatch touch to view hierarchy. 3332 boolean handled = mView.dispatchPointerEvent(event); 3333 if (MEASURE_LATENCY) { 3334 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3335 } 3336 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3337 } 3338 3339 private int deliverTrackballEvent(QueuedInputEvent q) { 3340 final MotionEvent event = (MotionEvent)q.mEvent; 3341 if (mInputEventConsistencyVerifier != null) { 3342 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3343 } 3344 3345 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3346 if (LOCAL_LOGV) 3347 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3348 3349 // Dispatch to the IME before propagating down the view hierarchy. 3350 // The IME will eventually call back into handleImeFinishedEvent. 3351 if (mLastWasImTarget) { 3352 InputMethodManager imm = InputMethodManager.peekInstance(); 3353 if (imm != null) { 3354 final int seq = event.getSequenceNumber(); 3355 if (DEBUG_IMF) 3356 Log.v(TAG, "Sending trackball event to IME: seq=" 3357 + seq + " event=" + event); 3358 int result = imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3359 mInputMethodCallback); 3360 if (result != EVENT_NOT_HANDLED) { 3361 return result; 3362 } 3363 } 3364 } 3365 } 3366 3367 // Not dispatching to IME, continue with post IME actions. 3368 return deliverTrackballEventPostIme(q); 3369 } 3370 3371 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3372 final MotionEvent event = (MotionEvent) q.mEvent; 3373 3374 // If there is no view, then the event will not be handled. 3375 if (mView == null || !mAdded) { 3376 return EVENT_NOT_HANDLED; 3377 } 3378 3379 // Deliver the trackball event to the view. 3380 if (mView.dispatchTrackballEvent(event)) { 3381 // If we reach this, we delivered a trackball event to mView and 3382 // mView consumed it. Because we will not translate the trackball 3383 // event into a key event, touch mode will not exit, so we exit 3384 // touch mode here. 3385 ensureTouchMode(false); 3386 mLastTrackballTime = Integer.MIN_VALUE; 3387 return EVENT_HANDLED; 3388 } 3389 3390 // Translate the trackball event into DPAD keys and try to deliver those. 3391 final TrackballAxis x = mTrackballAxisX; 3392 final TrackballAxis y = mTrackballAxisY; 3393 3394 long curTime = SystemClock.uptimeMillis(); 3395 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3396 // It has been too long since the last movement, 3397 // so restart at the beginning. 3398 x.reset(0); 3399 y.reset(0); 3400 mLastTrackballTime = curTime; 3401 } 3402 3403 final int action = event.getAction(); 3404 final int metaState = event.getMetaState(); 3405 switch (action) { 3406 case MotionEvent.ACTION_DOWN: 3407 x.reset(2); 3408 y.reset(2); 3409 enqueueInputEvent(new KeyEvent(curTime, curTime, 3410 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3411 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3412 InputDevice.SOURCE_KEYBOARD)); 3413 break; 3414 case MotionEvent.ACTION_UP: 3415 x.reset(2); 3416 y.reset(2); 3417 enqueueInputEvent(new KeyEvent(curTime, curTime, 3418 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3419 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3420 InputDevice.SOURCE_KEYBOARD)); 3421 break; 3422 } 3423 3424 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3425 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3426 + " move=" + event.getX() 3427 + " / Y=" + y.position + " step=" 3428 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3429 + " move=" + event.getY()); 3430 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3431 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3432 3433 // Generate DPAD events based on the trackball movement. 3434 // We pick the axis that has moved the most as the direction of 3435 // the DPAD. When we generate DPAD events for one axis, then the 3436 // other axis is reset -- we don't want to perform DPAD jumps due 3437 // to slight movements in the trackball when making major movements 3438 // along the other axis. 3439 int keycode = 0; 3440 int movement = 0; 3441 float accel = 1; 3442 if (xOff > yOff) { 3443 movement = x.generate((2/event.getXPrecision())); 3444 if (movement != 0) { 3445 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3446 : KeyEvent.KEYCODE_DPAD_LEFT; 3447 accel = x.acceleration; 3448 y.reset(2); 3449 } 3450 } else if (yOff > 0) { 3451 movement = y.generate((2/event.getYPrecision())); 3452 if (movement != 0) { 3453 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3454 : KeyEvent.KEYCODE_DPAD_UP; 3455 accel = y.acceleration; 3456 x.reset(2); 3457 } 3458 } 3459 3460 if (keycode != 0) { 3461 if (movement < 0) movement = -movement; 3462 int accelMovement = (int)(movement * accel); 3463 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3464 + " accelMovement=" + accelMovement 3465 + " accel=" + accel); 3466 if (accelMovement > movement) { 3467 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3468 + keycode); 3469 movement--; 3470 int repeatCount = accelMovement - movement; 3471 enqueueInputEvent(new KeyEvent(curTime, curTime, 3472 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3473 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3474 InputDevice.SOURCE_KEYBOARD)); 3475 } 3476 while (movement > 0) { 3477 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3478 + keycode); 3479 movement--; 3480 curTime = SystemClock.uptimeMillis(); 3481 enqueueInputEvent(new KeyEvent(curTime, curTime, 3482 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3483 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3484 InputDevice.SOURCE_KEYBOARD)); 3485 enqueueInputEvent(new KeyEvent(curTime, curTime, 3486 KeyEvent.ACTION_UP, keycode, 0, metaState, 3487 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3488 InputDevice.SOURCE_KEYBOARD)); 3489 } 3490 mLastTrackballTime = curTime; 3491 } 3492 3493 // Unfortunately we can't tell whether the application consumed the keys, so 3494 // we always consider the trackball event handled. 3495 return EVENT_HANDLED; 3496 } 3497 3498 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3499 final MotionEvent event = (MotionEvent)q.mEvent; 3500 if (mInputEventConsistencyVerifier != null) { 3501 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3502 } 3503 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3504 if (LOCAL_LOGV) 3505 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3506 3507 // Dispatch to the IME before propagating down the view hierarchy. 3508 // The IME will eventually call back into handleImeFinishedEvent. 3509 if (mLastWasImTarget) { 3510 InputMethodManager imm = InputMethodManager.peekInstance(); 3511 if (imm != null) { 3512 final int seq = event.getSequenceNumber(); 3513 if (DEBUG_IMF) 3514 Log.v(TAG, "Sending generic motion event to IME: seq=" 3515 + seq + " event=" + event); 3516 int result = imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3517 mInputMethodCallback); 3518 if (result != EVENT_NOT_HANDLED) { 3519 return result; 3520 } 3521 } 3522 } 3523 } 3524 3525 // Not dispatching to IME, continue with post IME actions. 3526 return deliverGenericMotionEventPostIme(q); 3527 } 3528 3529 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3530 final MotionEvent event = (MotionEvent) q.mEvent; 3531 final int source = event.getSource(); 3532 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3533 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3534 3535 // If there is no view, then the event will not be handled. 3536 if (mView == null || !mAdded) { 3537 if (isJoystick) { 3538 updateJoystickDirection(event, false); 3539 } else if (isTouchPad) { 3540 mSimulatedDpad.updateTouchPad(this, event, false); 3541 } 3542 return EVENT_NOT_HANDLED; 3543 } 3544 3545 // Deliver the event to the view. 3546 if (mView.dispatchGenericMotionEvent(event)) { 3547 if (isJoystick) { 3548 updateJoystickDirection(event, false); 3549 } else if (isTouchPad) { 3550 mSimulatedDpad.updateTouchPad(this, event, false); 3551 } 3552 return EVENT_HANDLED; 3553 } 3554 3555 if (isJoystick) { 3556 // Translate the joystick event into DPAD keys and try to deliver 3557 // those. 3558 updateJoystickDirection(event, true); 3559 return EVENT_HANDLED; 3560 } 3561 if (isTouchPad) { 3562 mSimulatedDpad.updateTouchPad(this, event, true); 3563 return EVENT_HANDLED; 3564 } 3565 return EVENT_NOT_HANDLED; 3566 } 3567 3568 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3569 final long time = event.getEventTime(); 3570 final int metaState = event.getMetaState(); 3571 final int deviceId = event.getDeviceId(); 3572 final int source = event.getSource(); 3573 3574 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3575 if (xDirection == 0) { 3576 xDirection = joystickAxisValueToDirection(event.getX()); 3577 } 3578 3579 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3580 if (yDirection == 0) { 3581 yDirection = joystickAxisValueToDirection(event.getY()); 3582 } 3583 3584 if (xDirection != mLastJoystickXDirection) { 3585 if (mLastJoystickXKeyCode != 0) { 3586 enqueueInputEvent(new KeyEvent(time, time, 3587 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3588 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3589 mLastJoystickXKeyCode = 0; 3590 } 3591 3592 mLastJoystickXDirection = xDirection; 3593 3594 if (xDirection != 0 && synthesizeNewKeys) { 3595 mLastJoystickXKeyCode = xDirection > 0 3596 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3597 enqueueInputEvent(new KeyEvent(time, time, 3598 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3599 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3600 } 3601 } 3602 3603 if (yDirection != mLastJoystickYDirection) { 3604 if (mLastJoystickYKeyCode != 0) { 3605 enqueueInputEvent(new KeyEvent(time, time, 3606 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3607 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3608 mLastJoystickYKeyCode = 0; 3609 } 3610 3611 mLastJoystickYDirection = yDirection; 3612 3613 if (yDirection != 0 && synthesizeNewKeys) { 3614 mLastJoystickYKeyCode = yDirection > 0 3615 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3616 enqueueInputEvent(new KeyEvent(time, time, 3617 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3618 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3619 } 3620 } 3621 } 3622 3623 private static int joystickAxisValueToDirection(float value) { 3624 if (value >= 0.5f) { 3625 return 1; 3626 } else if (value <= -0.5f) { 3627 return -1; 3628 } else { 3629 return 0; 3630 } 3631 } 3632 3633 /** 3634 * Returns true if the key is used for keyboard navigation. 3635 * @param keyEvent The key event. 3636 * @return True if the key is used for keyboard navigation. 3637 */ 3638 private static boolean isNavigationKey(KeyEvent keyEvent) { 3639 switch (keyEvent.getKeyCode()) { 3640 case KeyEvent.KEYCODE_DPAD_LEFT: 3641 case KeyEvent.KEYCODE_DPAD_RIGHT: 3642 case KeyEvent.KEYCODE_DPAD_UP: 3643 case KeyEvent.KEYCODE_DPAD_DOWN: 3644 case KeyEvent.KEYCODE_DPAD_CENTER: 3645 case KeyEvent.KEYCODE_PAGE_UP: 3646 case KeyEvent.KEYCODE_PAGE_DOWN: 3647 case KeyEvent.KEYCODE_MOVE_HOME: 3648 case KeyEvent.KEYCODE_MOVE_END: 3649 case KeyEvent.KEYCODE_TAB: 3650 case KeyEvent.KEYCODE_SPACE: 3651 case KeyEvent.KEYCODE_ENTER: 3652 return true; 3653 } 3654 return false; 3655 } 3656 3657 /** 3658 * Returns true if the key is used for typing. 3659 * @param keyEvent The key event. 3660 * @return True if the key is used for typing. 3661 */ 3662 private static boolean isTypingKey(KeyEvent keyEvent) { 3663 return keyEvent.getUnicodeChar() > 0; 3664 } 3665 3666 /** 3667 * See if the key event means we should leave touch mode (and leave touch mode if so). 3668 * @param event The key event. 3669 * @return Whether this key event should be consumed (meaning the act of 3670 * leaving touch mode alone is considered the event). 3671 */ 3672 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3673 // Only relevant in touch mode. 3674 if (!mAttachInfo.mInTouchMode) { 3675 return false; 3676 } 3677 3678 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3679 final int action = event.getAction(); 3680 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3681 return false; 3682 } 3683 3684 // Don't leave touch mode if the IME told us not to. 3685 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3686 return false; 3687 } 3688 3689 // If the key can be used for keyboard navigation then leave touch mode 3690 // and select a focused view if needed (in ensureTouchMode). 3691 // When a new focused view is selected, we consume the navigation key because 3692 // navigation doesn't make much sense unless a view already has focus so 3693 // the key's purpose is to set focus. 3694 if (isNavigationKey(event)) { 3695 return ensureTouchMode(false); 3696 } 3697 3698 // If the key can be used for typing then leave touch mode 3699 // and select a focused view if needed (in ensureTouchMode). 3700 // Always allow the view to process the typing key. 3701 if (isTypingKey(event)) { 3702 ensureTouchMode(false); 3703 return false; 3704 } 3705 3706 return false; 3707 } 3708 3709 private int deliverKeyEvent(QueuedInputEvent q) { 3710 final KeyEvent event = (KeyEvent)q.mEvent; 3711 if (mInputEventConsistencyVerifier != null) { 3712 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3713 } 3714 3715 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3716 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3717 3718 // Perform predispatching before the IME. 3719 if (mView.dispatchKeyEventPreIme(event)) { 3720 return EVENT_HANDLED; 3721 } 3722 3723 // Dispatch to the IME before propagating down the view hierarchy. 3724 // The IME will eventually call back into handleImeFinishedEvent. 3725 if (mLastWasImTarget) { 3726 InputMethodManager imm = InputMethodManager.peekInstance(); 3727 if (imm != null) { 3728 final int seq = event.getSequenceNumber(); 3729 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3730 + seq + " event=" + event); 3731 int result = imm.dispatchKeyEvent(mView.getContext(), seq, event, 3732 mInputMethodCallback); 3733 if (result != EVENT_NOT_HANDLED) { 3734 return result; 3735 } 3736 } 3737 } 3738 } 3739 3740 // Not dispatching to IME, continue with post IME actions. 3741 return deliverKeyEventPostIme(q); 3742 } 3743 3744 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3745 final KeyEvent event = (KeyEvent)q.mEvent; 3746 3747 // If the view went away, then the event will not be handled. 3748 if (mView == null || !mAdded) { 3749 return EVENT_NOT_HANDLED; 3750 } 3751 3752 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3753 if (checkForLeavingTouchModeAndConsume(event)) { 3754 return EVENT_HANDLED; 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 return EVENT_HANDLED; 3764 } 3765 3766 // If the Control modifier is held, try to interpret the key as a shortcut. 3767 if (event.getAction() == KeyEvent.ACTION_DOWN 3768 && event.isCtrlPressed() 3769 && event.getRepeatCount() == 0 3770 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3771 if (mView.dispatchKeyShortcutEvent(event)) { 3772 return EVENT_HANDLED; 3773 } 3774 } 3775 3776 // Apply the fallback event policy. 3777 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3778 return EVENT_HANDLED; 3779 } 3780 3781 // Handle automatic focus changes. 3782 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3783 int direction = 0; 3784 switch (event.getKeyCode()) { 3785 case KeyEvent.KEYCODE_DPAD_LEFT: 3786 if (event.hasNoModifiers()) { 3787 direction = View.FOCUS_LEFT; 3788 } 3789 break; 3790 case KeyEvent.KEYCODE_DPAD_RIGHT: 3791 if (event.hasNoModifiers()) { 3792 direction = View.FOCUS_RIGHT; 3793 } 3794 break; 3795 case KeyEvent.KEYCODE_DPAD_UP: 3796 if (event.hasNoModifiers()) { 3797 direction = View.FOCUS_UP; 3798 } 3799 break; 3800 case KeyEvent.KEYCODE_DPAD_DOWN: 3801 if (event.hasNoModifiers()) { 3802 direction = View.FOCUS_DOWN; 3803 } 3804 break; 3805 case KeyEvent.KEYCODE_TAB: 3806 if (event.hasNoModifiers()) { 3807 direction = View.FOCUS_FORWARD; 3808 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3809 direction = View.FOCUS_BACKWARD; 3810 } 3811 break; 3812 } 3813 if (direction != 0) { 3814 View focused = mView.findFocus(); 3815 if (focused != null) { 3816 View v = focused.focusSearch(direction); 3817 if (v != null && v != focused) { 3818 // do the math the get the interesting rect 3819 // of previous focused into the coord system of 3820 // newly focused view 3821 focused.getFocusedRect(mTempRect); 3822 if (mView instanceof ViewGroup) { 3823 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3824 focused, mTempRect); 3825 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3826 v, mTempRect); 3827 } 3828 if (v.requestFocus(direction, mTempRect)) { 3829 playSoundEffect(SoundEffectConstants 3830 .getContantForFocusDirection(direction)); 3831 return EVENT_HANDLED; 3832 } 3833 } 3834 3835 // Give the focused view a last chance to handle the dpad key. 3836 if (mView.dispatchUnhandledMove(focused, direction)) { 3837 return EVENT_HANDLED; 3838 } 3839 } 3840 } 3841 } 3842 3843 // Key was unhandled. 3844 return EVENT_NOT_HANDLED; 3845 } 3846 3847 /* drag/drop */ 3848 void setLocalDragState(Object obj) { 3849 mLocalDragState = obj; 3850 } 3851 3852 private void handleDragEvent(DragEvent event) { 3853 // From the root, only drag start/end/location are dispatched. entered/exited 3854 // are determined and dispatched by the viewgroup hierarchy, who then report 3855 // that back here for ultimate reporting back to the framework. 3856 if (mView != null && mAdded) { 3857 final int what = event.mAction; 3858 3859 if (what == DragEvent.ACTION_DRAG_EXITED) { 3860 // A direct EXITED event means that the window manager knows we've just crossed 3861 // a window boundary, so the current drag target within this one must have 3862 // just been exited. Send it the usual notifications and then we're done 3863 // for now. 3864 mView.dispatchDragEvent(event); 3865 } else { 3866 // Cache the drag description when the operation starts, then fill it in 3867 // on subsequent calls as a convenience 3868 if (what == DragEvent.ACTION_DRAG_STARTED) { 3869 mCurrentDragView = null; // Start the current-recipient tracking 3870 mDragDescription = event.mClipDescription; 3871 } else { 3872 event.mClipDescription = mDragDescription; 3873 } 3874 3875 // For events with a [screen] location, translate into window coordinates 3876 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3877 mDragPoint.set(event.mX, event.mY); 3878 if (mTranslator != null) { 3879 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3880 } 3881 3882 if (mCurScrollY != 0) { 3883 mDragPoint.offset(0, mCurScrollY); 3884 } 3885 3886 event.mX = mDragPoint.x; 3887 event.mY = mDragPoint.y; 3888 } 3889 3890 // Remember who the current drag target is pre-dispatch 3891 final View prevDragView = mCurrentDragView; 3892 3893 // Now dispatch the drag/drop event 3894 boolean result = mView.dispatchDragEvent(event); 3895 3896 // If we changed apparent drag target, tell the OS about it 3897 if (prevDragView != mCurrentDragView) { 3898 try { 3899 if (prevDragView != null) { 3900 mWindowSession.dragRecipientExited(mWindow); 3901 } 3902 if (mCurrentDragView != null) { 3903 mWindowSession.dragRecipientEntered(mWindow); 3904 } 3905 } catch (RemoteException e) { 3906 Slog.e(TAG, "Unable to note drag target change"); 3907 } 3908 } 3909 3910 // Report the drop result when we're done 3911 if (what == DragEvent.ACTION_DROP) { 3912 mDragDescription = null; 3913 try { 3914 Log.i(TAG, "Reporting drop result: " + result); 3915 mWindowSession.reportDropResult(mWindow, result); 3916 } catch (RemoteException e) { 3917 Log.e(TAG, "Unable to report drop result"); 3918 } 3919 } 3920 3921 // When the drag operation ends, release any local state object 3922 // that may have been in use 3923 if (what == DragEvent.ACTION_DRAG_ENDED) { 3924 setLocalDragState(null); 3925 } 3926 } 3927 } 3928 event.recycle(); 3929 } 3930 3931 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3932 if (mSeq != args.seq) { 3933 // The sequence has changed, so we need to update our value and make 3934 // sure to do a traversal afterward so the window manager is given our 3935 // most recent data. 3936 mSeq = args.seq; 3937 mAttachInfo.mForceReportNewAttributes = true; 3938 scheduleTraversals(); 3939 } 3940 if (mView == null) return; 3941 if (args.localChanges != 0) { 3942 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3943 } 3944 if (mAttachInfo != null) { 3945 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3946 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3947 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3948 mView.dispatchSystemUiVisibilityChanged(visibility); 3949 } 3950 } 3951 } 3952 3953 public void handleDispatchDoneAnimating() { 3954 if (mWindowsAnimating) { 3955 mWindowsAnimating = false; 3956 if (!mDirty.isEmpty() || mIsAnimating) { 3957 scheduleTraversals(); 3958 } 3959 } 3960 } 3961 3962 public void getLastTouchPoint(Point outLocation) { 3963 outLocation.x = (int) mLastTouchPoint.x; 3964 outLocation.y = (int) mLastTouchPoint.y; 3965 } 3966 3967 public void setDragFocus(View newDragTarget) { 3968 if (mCurrentDragView != newDragTarget) { 3969 mCurrentDragView = newDragTarget; 3970 } 3971 } 3972 3973 private AudioManager getAudioManager() { 3974 if (mView == null) { 3975 throw new IllegalStateException("getAudioManager called when there is no mView"); 3976 } 3977 if (mAudioManager == null) { 3978 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3979 } 3980 return mAudioManager; 3981 } 3982 3983 public AccessibilityInteractionController getAccessibilityInteractionController() { 3984 if (mView == null) { 3985 throw new IllegalStateException("getAccessibilityInteractionController" 3986 + " called when there is no mView"); 3987 } 3988 if (mAccessibilityInteractionController == null) { 3989 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3990 } 3991 return mAccessibilityInteractionController; 3992 } 3993 3994 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3995 boolean insetsPending) throws RemoteException { 3996 3997 float appScale = mAttachInfo.mApplicationScale; 3998 boolean restore = false; 3999 if (params != null && mTranslator != null) { 4000 restore = true; 4001 params.backup(); 4002 mTranslator.translateWindowLayout(params); 4003 } 4004 if (params != null) { 4005 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4006 } 4007 mPendingConfiguration.seq = 0; 4008 //Log.d(TAG, ">>>>>> CALLING relayout"); 4009 if (params != null && mOrigWindowType != params.type) { 4010 // For compatibility with old apps, don't crash here. 4011 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4012 Slog.w(TAG, "Window type can not be changed after " 4013 + "the window is added; ignoring change of " + mView); 4014 params.type = mOrigWindowType; 4015 } 4016 } 4017 int relayoutResult = mWindowSession.relayout( 4018 mWindow, mSeq, params, 4019 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4020 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4021 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4022 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 4023 mPendingConfiguration, mSurface); 4024 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4025 if (restore) { 4026 params.restore(); 4027 } 4028 4029 if (mTranslator != null) { 4030 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4031 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4032 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4033 } 4034 return relayoutResult; 4035 } 4036 4037 /** 4038 * {@inheritDoc} 4039 */ 4040 public void playSoundEffect(int effectId) { 4041 checkThread(); 4042 4043 try { 4044 final AudioManager audioManager = getAudioManager(); 4045 4046 switch (effectId) { 4047 case SoundEffectConstants.CLICK: 4048 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4049 return; 4050 case SoundEffectConstants.NAVIGATION_DOWN: 4051 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4052 return; 4053 case SoundEffectConstants.NAVIGATION_LEFT: 4054 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4055 return; 4056 case SoundEffectConstants.NAVIGATION_RIGHT: 4057 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4058 return; 4059 case SoundEffectConstants.NAVIGATION_UP: 4060 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4061 return; 4062 default: 4063 throw new IllegalArgumentException("unknown effect id " + effectId + 4064 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4065 } 4066 } catch (IllegalStateException e) { 4067 // Exception thrown by getAudioManager() when mView is null 4068 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4069 e.printStackTrace(); 4070 } 4071 } 4072 4073 /** 4074 * {@inheritDoc} 4075 */ 4076 public boolean performHapticFeedback(int effectId, boolean always) { 4077 try { 4078 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4079 } catch (RemoteException e) { 4080 return false; 4081 } 4082 } 4083 4084 /** 4085 * {@inheritDoc} 4086 */ 4087 public View focusSearch(View focused, int direction) { 4088 checkThread(); 4089 if (!(mView instanceof ViewGroup)) { 4090 return null; 4091 } 4092 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4093 } 4094 4095 public void debug() { 4096 mView.debug(); 4097 } 4098 4099 public void dumpGfxInfo(int[] info) { 4100 info[0] = info[1] = 0; 4101 if (mView != null) { 4102 getGfxInfo(mView, info); 4103 } 4104 } 4105 4106 private static void getGfxInfo(View view, int[] info) { 4107 DisplayList displayList = view.mDisplayList; 4108 info[0]++; 4109 if (displayList != null) { 4110 info[1] += displayList.getSize(); 4111 } 4112 4113 if (view instanceof ViewGroup) { 4114 ViewGroup group = (ViewGroup) view; 4115 4116 int count = group.getChildCount(); 4117 for (int i = 0; i < count; i++) { 4118 getGfxInfo(group.getChildAt(i), info); 4119 } 4120 } 4121 } 4122 4123 public void die(boolean immediate) { 4124 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4125 // done by dispatchDetachedFromWindow will cause havoc on return. 4126 if (immediate && !mIsInTraversal) { 4127 doDie(); 4128 } else { 4129 if (!mIsDrawing) { 4130 destroyHardwareRenderer(); 4131 } else { 4132 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4133 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4134 } 4135 mHandler.sendEmptyMessage(MSG_DIE); 4136 } 4137 } 4138 4139 void doDie() { 4140 checkThread(); 4141 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4142 synchronized (this) { 4143 if (mAdded) { 4144 dispatchDetachedFromWindow(); 4145 } 4146 4147 if (mAdded && !mFirst) { 4148 invalidateDisplayLists(); 4149 destroyHardwareRenderer(); 4150 4151 if (mView != null) { 4152 int viewVisibility = mView.getVisibility(); 4153 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4154 if (mWindowAttributesChanged || viewVisibilityChanged) { 4155 // If layout params have been changed, first give them 4156 // to the window manager to make sure it has the correct 4157 // animation info. 4158 try { 4159 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4160 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4161 mWindowSession.finishDrawing(mWindow); 4162 } 4163 } catch (RemoteException e) { 4164 } 4165 } 4166 4167 mSurface.release(); 4168 } 4169 } 4170 4171 mAdded = false; 4172 } 4173 } 4174 4175 public void requestUpdateConfiguration(Configuration config) { 4176 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4177 mHandler.sendMessage(msg); 4178 } 4179 4180 public void loadSystemProperties() { 4181 mHandler.post(new Runnable() { 4182 @Override 4183 public void run() { 4184 // Profiling 4185 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4186 profileRendering(mAttachInfo.mHasWindowFocus); 4187 4188 // Hardware rendering 4189 if (mAttachInfo.mHardwareRenderer != null) { 4190 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4191 invalidate(); 4192 } 4193 } 4194 4195 // Layout debugging 4196 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4197 if (layout != mAttachInfo.mDebugLayout) { 4198 mAttachInfo.mDebugLayout = layout; 4199 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4200 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4201 } 4202 } 4203 } 4204 }); 4205 } 4206 4207 private void destroyHardwareRenderer() { 4208 AttachInfo attachInfo = mAttachInfo; 4209 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4210 4211 if (hardwareRenderer != null) { 4212 if (mView != null) { 4213 hardwareRenderer.destroyHardwareResources(mView); 4214 } 4215 hardwareRenderer.destroy(true); 4216 hardwareRenderer.setRequested(false); 4217 4218 attachInfo.mHardwareRenderer = null; 4219 attachInfo.mHardwareAccelerated = false; 4220 } 4221 } 4222 4223 void dispatchImeFinishedEvent(int seq, boolean handled) { 4224 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4225 msg.arg1 = seq; 4226 msg.arg2 = handled ? 1 : 0; 4227 msg.setAsynchronous(true); 4228 mHandler.sendMessage(msg); 4229 } 4230 4231 public void dispatchFinishInputConnection(InputConnection connection) { 4232 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4233 mHandler.sendMessage(msg); 4234 } 4235 4236 public void dispatchResized(Rect frame, Rect contentInsets, 4237 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4238 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4239 + " contentInsets=" + contentInsets.toShortString() 4240 + " visibleInsets=" + visibleInsets.toShortString() 4241 + " reportDraw=" + reportDraw); 4242 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4243 if (mTranslator != null) { 4244 mTranslator.translateRectInScreenToAppWindow(frame); 4245 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4246 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4247 } 4248 SomeArgs args = SomeArgs.obtain(); 4249 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4250 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4251 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4252 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4253 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4254 msg.obj = args; 4255 mHandler.sendMessage(msg); 4256 } 4257 4258 public void dispatchMoved(int newX, int newY) { 4259 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4260 if (mTranslator != null) { 4261 PointF point = new PointF(newX, newY); 4262 mTranslator.translatePointInScreenToAppWindow(point); 4263 newX = (int) (point.x + 0.5); 4264 newY = (int) (point.y + 0.5); 4265 } 4266 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4267 mHandler.sendMessage(msg); 4268 } 4269 4270 /** 4271 * Represents a pending input event that is waiting in a queue. 4272 * 4273 * Input events are processed in serial order by the timestamp specified by 4274 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4275 * one input event to the application at a time and waits for the application 4276 * to finish handling it before delivering the next one. 4277 * 4278 * However, because the application or IME can synthesize and inject multiple 4279 * key events at a time without going through the input dispatcher, we end up 4280 * needing a queue on the application's side. 4281 */ 4282 private static final class QueuedInputEvent { 4283 public static final int FLAG_DELIVER_POST_IME = 1; 4284 4285 public QueuedInputEvent mNext; 4286 4287 public InputEvent mEvent; 4288 public InputEventReceiver mReceiver; 4289 public int mFlags; 4290 } 4291 4292 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4293 InputEventReceiver receiver, int flags) { 4294 QueuedInputEvent q = mQueuedInputEventPool; 4295 if (q != null) { 4296 mQueuedInputEventPoolSize -= 1; 4297 mQueuedInputEventPool = q.mNext; 4298 q.mNext = null; 4299 } else { 4300 q = new QueuedInputEvent(); 4301 } 4302 4303 q.mEvent = event; 4304 q.mReceiver = receiver; 4305 q.mFlags = flags; 4306 return q; 4307 } 4308 4309 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4310 q.mEvent = null; 4311 q.mReceiver = null; 4312 4313 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4314 mQueuedInputEventPoolSize += 1; 4315 q.mNext = mQueuedInputEventPool; 4316 mQueuedInputEventPool = q; 4317 } 4318 } 4319 4320 void enqueueInputEvent(InputEvent event) { 4321 enqueueInputEvent(event, null, 0, false); 4322 } 4323 4324 void enqueueInputEvent(InputEvent event, 4325 InputEventReceiver receiver, int flags, boolean processImmediately) { 4326 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4327 4328 // Always enqueue the input event in order, regardless of its time stamp. 4329 // We do this because the application or the IME may inject key events 4330 // in response to touch events and we want to ensure that the injected keys 4331 // are processed in the order they were received and we cannot trust that 4332 // the time stamp of injected events are monotonic. 4333 QueuedInputEvent last = mFirstPendingInputEvent; 4334 if (last == null) { 4335 mFirstPendingInputEvent = q; 4336 } else { 4337 while (last.mNext != null) { 4338 last = last.mNext; 4339 } 4340 last.mNext = q; 4341 } 4342 4343 if (processImmediately) { 4344 doProcessInputEvents(); 4345 } else { 4346 scheduleProcessInputEvents(); 4347 } 4348 } 4349 4350 private void scheduleProcessInputEvents() { 4351 if (!mProcessInputEventsScheduled) { 4352 mProcessInputEventsScheduled = true; 4353 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4354 msg.setAsynchronous(true); 4355 mHandler.sendMessage(msg); 4356 } 4357 } 4358 4359 void doProcessInputEvents() { 4360 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4361 QueuedInputEvent q = mFirstPendingInputEvent; 4362 mFirstPendingInputEvent = q.mNext; 4363 q.mNext = null; 4364 mCurrentInputEvent = q; 4365 4366 final int result = deliverInputEvent(q); 4367 if (result != EVENT_IN_PROGRESS) { 4368 finishCurrentInputEvent(result == EVENT_HANDLED); 4369 } 4370 } 4371 4372 // We are done processing all input events that we can process right now 4373 // so we can clear the pending flag immediately. 4374 if (mProcessInputEventsScheduled) { 4375 mProcessInputEventsScheduled = false; 4376 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4377 } 4378 } 4379 4380 void handleImeFinishedEvent(int seq, boolean handled) { 4381 final QueuedInputEvent q = mCurrentInputEvent; 4382 if (q != null && q.mEvent.getSequenceNumber() == seq) { 4383 if (DEBUG_IMF) { 4384 Log.v(TAG, "IME finished event: seq=" + seq 4385 + " handled=" + handled + " event=" + q); 4386 } 4387 4388 if (!handled) { 4389 // If the window doesn't currently have input focus, then drop 4390 // this event. This could be an event that came back from the 4391 // IME dispatch but the window has lost focus in the meantime. 4392 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4393 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4394 } else { 4395 final int result = deliverInputEventPostIme(q); 4396 if (result == EVENT_HANDLED) { 4397 handled = true; 4398 } 4399 } 4400 } 4401 finishCurrentInputEvent(handled); 4402 4403 // Immediately start processing the next input event. 4404 doProcessInputEvents(); 4405 } else { 4406 if (DEBUG_IMF) { 4407 Log.v(TAG, "IME finished event: seq=" + seq 4408 + " handled=" + handled + ", event not found!"); 4409 } 4410 } 4411 } 4412 4413 private void finishCurrentInputEvent(boolean handled) { 4414 final QueuedInputEvent q = mCurrentInputEvent; 4415 mCurrentInputEvent = null; 4416 4417 if (q.mReceiver != null) { 4418 q.mReceiver.finishInputEvent(q.mEvent, handled); 4419 } else { 4420 q.mEvent.recycleIfNeededAfterDispatch(); 4421 } 4422 4423 recycleQueuedInputEvent(q); 4424 } 4425 4426 private static boolean isTerminalInputEvent(InputEvent event) { 4427 if (event instanceof KeyEvent) { 4428 final KeyEvent keyEvent = (KeyEvent)event; 4429 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4430 } else { 4431 final MotionEvent motionEvent = (MotionEvent)event; 4432 final int action = motionEvent.getAction(); 4433 return action == MotionEvent.ACTION_UP 4434 || action == MotionEvent.ACTION_CANCEL 4435 || action == MotionEvent.ACTION_HOVER_EXIT; 4436 } 4437 } 4438 4439 void scheduleConsumeBatchedInput() { 4440 if (!mConsumeBatchedInputScheduled) { 4441 mConsumeBatchedInputScheduled = true; 4442 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4443 mConsumedBatchedInputRunnable, null); 4444 } 4445 } 4446 4447 void unscheduleConsumeBatchedInput() { 4448 if (mConsumeBatchedInputScheduled) { 4449 mConsumeBatchedInputScheduled = false; 4450 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4451 mConsumedBatchedInputRunnable, null); 4452 } 4453 } 4454 4455 void doConsumeBatchedInput(long frameTimeNanos) { 4456 if (mConsumeBatchedInputScheduled) { 4457 mConsumeBatchedInputScheduled = false; 4458 if (mInputEventReceiver != null) { 4459 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4460 } 4461 doProcessInputEvents(); 4462 } 4463 } 4464 4465 final class TraversalRunnable implements Runnable { 4466 @Override 4467 public void run() { 4468 doTraversal(); 4469 } 4470 } 4471 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4472 4473 final class WindowInputEventReceiver extends InputEventReceiver { 4474 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4475 super(inputChannel, looper); 4476 } 4477 4478 @Override 4479 public void onInputEvent(InputEvent event) { 4480 enqueueInputEvent(event, this, 0, true); 4481 } 4482 4483 @Override 4484 public void onBatchedInputEventPending() { 4485 scheduleConsumeBatchedInput(); 4486 } 4487 4488 @Override 4489 public void dispose() { 4490 unscheduleConsumeBatchedInput(); 4491 super.dispose(); 4492 } 4493 } 4494 WindowInputEventReceiver mInputEventReceiver; 4495 4496 final class ConsumeBatchedInputRunnable implements Runnable { 4497 @Override 4498 public void run() { 4499 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4500 } 4501 } 4502 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4503 new ConsumeBatchedInputRunnable(); 4504 boolean mConsumeBatchedInputScheduled; 4505 4506 final class InvalidateOnAnimationRunnable implements Runnable { 4507 private boolean mPosted; 4508 private ArrayList<View> mViews = new ArrayList<View>(); 4509 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4510 new ArrayList<AttachInfo.InvalidateInfo>(); 4511 private View[] mTempViews; 4512 private AttachInfo.InvalidateInfo[] mTempViewRects; 4513 4514 public void addView(View view) { 4515 synchronized (this) { 4516 mViews.add(view); 4517 postIfNeededLocked(); 4518 } 4519 } 4520 4521 public void addViewRect(AttachInfo.InvalidateInfo info) { 4522 synchronized (this) { 4523 mViewRects.add(info); 4524 postIfNeededLocked(); 4525 } 4526 } 4527 4528 public void removeView(View view) { 4529 synchronized (this) { 4530 mViews.remove(view); 4531 4532 for (int i = mViewRects.size(); i-- > 0; ) { 4533 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4534 if (info.target == view) { 4535 mViewRects.remove(i); 4536 info.recycle(); 4537 } 4538 } 4539 4540 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4541 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4542 mPosted = false; 4543 } 4544 } 4545 } 4546 4547 @Override 4548 public void run() { 4549 final int viewCount; 4550 final int viewRectCount; 4551 synchronized (this) { 4552 mPosted = false; 4553 4554 viewCount = mViews.size(); 4555 if (viewCount != 0) { 4556 mTempViews = mViews.toArray(mTempViews != null 4557 ? mTempViews : new View[viewCount]); 4558 mViews.clear(); 4559 } 4560 4561 viewRectCount = mViewRects.size(); 4562 if (viewRectCount != 0) { 4563 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4564 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4565 mViewRects.clear(); 4566 } 4567 } 4568 4569 for (int i = 0; i < viewCount; i++) { 4570 mTempViews[i].invalidate(); 4571 mTempViews[i] = null; 4572 } 4573 4574 for (int i = 0; i < viewRectCount; i++) { 4575 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4576 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4577 info.recycle(); 4578 } 4579 } 4580 4581 private void postIfNeededLocked() { 4582 if (!mPosted) { 4583 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4584 mPosted = true; 4585 } 4586 } 4587 } 4588 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4589 new InvalidateOnAnimationRunnable(); 4590 4591 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4592 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4593 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4594 } 4595 4596 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4597 long delayMilliseconds) { 4598 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4599 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4600 } 4601 4602 public void dispatchInvalidateOnAnimation(View view) { 4603 mInvalidateOnAnimationRunnable.addView(view); 4604 } 4605 4606 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4607 mInvalidateOnAnimationRunnable.addViewRect(info); 4608 } 4609 4610 public void enqueueDisplayList(DisplayList displayList) { 4611 mDisplayLists.add(displayList); 4612 } 4613 4614 public void cancelInvalidate(View view) { 4615 mHandler.removeMessages(MSG_INVALIDATE, view); 4616 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4617 // them to the pool 4618 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4619 mInvalidateOnAnimationRunnable.removeView(view); 4620 } 4621 4622 public void dispatchKey(KeyEvent event) { 4623 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4624 msg.setAsynchronous(true); 4625 mHandler.sendMessage(msg); 4626 } 4627 4628 public void dispatchKeyFromIme(KeyEvent event) { 4629 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4630 msg.setAsynchronous(true); 4631 mHandler.sendMessage(msg); 4632 } 4633 4634 public void dispatchUnhandledKey(KeyEvent event) { 4635 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4636 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4637 final int keyCode = event.getKeyCode(); 4638 final int metaState = event.getMetaState(); 4639 4640 // Check for fallback actions specified by the key character map. 4641 KeyCharacterMap.FallbackAction fallbackAction = 4642 kcm.getFallbackAction(keyCode, metaState); 4643 if (fallbackAction != null) { 4644 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4645 KeyEvent fallbackEvent = KeyEvent.obtain( 4646 event.getDownTime(), event.getEventTime(), 4647 event.getAction(), fallbackAction.keyCode, 4648 event.getRepeatCount(), fallbackAction.metaState, 4649 event.getDeviceId(), event.getScanCode(), 4650 flags, event.getSource(), null); 4651 fallbackAction.recycle(); 4652 4653 dispatchKey(fallbackEvent); 4654 } 4655 } 4656 } 4657 4658 public void dispatchAppVisibility(boolean visible) { 4659 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4660 msg.arg1 = visible ? 1 : 0; 4661 mHandler.sendMessage(msg); 4662 } 4663 4664 public void dispatchScreenStateChange(boolean on) { 4665 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4666 msg.arg1 = on ? 1 : 0; 4667 mHandler.sendMessage(msg); 4668 } 4669 4670 public void dispatchGetNewSurface() { 4671 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4672 mHandler.sendMessage(msg); 4673 } 4674 4675 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4676 Message msg = Message.obtain(); 4677 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4678 msg.arg1 = hasFocus ? 1 : 0; 4679 msg.arg2 = inTouchMode ? 1 : 0; 4680 mHandler.sendMessage(msg); 4681 } 4682 4683 public void dispatchCloseSystemDialogs(String reason) { 4684 Message msg = Message.obtain(); 4685 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4686 msg.obj = reason; 4687 mHandler.sendMessage(msg); 4688 } 4689 4690 public void dispatchDragEvent(DragEvent event) { 4691 final int what; 4692 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4693 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4694 mHandler.removeMessages(what); 4695 } else { 4696 what = MSG_DISPATCH_DRAG_EVENT; 4697 } 4698 Message msg = mHandler.obtainMessage(what, event); 4699 mHandler.sendMessage(msg); 4700 } 4701 4702 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4703 int localValue, int localChanges) { 4704 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4705 args.seq = seq; 4706 args.globalVisibility = globalVisibility; 4707 args.localValue = localValue; 4708 args.localChanges = localChanges; 4709 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4710 } 4711 4712 public void dispatchDoneAnimating() { 4713 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4714 } 4715 4716 public void dispatchCheckFocus() { 4717 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4718 // This will result in a call to checkFocus() below. 4719 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4720 } 4721 } 4722 4723 /** 4724 * Post a callback to send a 4725 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4726 * This event is send at most once every 4727 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4728 */ 4729 private void postSendWindowContentChangedCallback(View source) { 4730 if (mSendWindowContentChangedAccessibilityEvent == null) { 4731 mSendWindowContentChangedAccessibilityEvent = 4732 new SendWindowContentChangedAccessibilityEvent(); 4733 } 4734 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4735 if (oldSource == null) { 4736 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4737 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4738 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4739 } else { 4740 mSendWindowContentChangedAccessibilityEvent.mSource = 4741 getCommonPredecessor(oldSource, source); 4742 } 4743 } 4744 4745 /** 4746 * Remove a posted callback to send a 4747 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4748 */ 4749 private void removeSendWindowContentChangedCallback() { 4750 if (mSendWindowContentChangedAccessibilityEvent != null) { 4751 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4752 } 4753 } 4754 4755 public boolean showContextMenuForChild(View originalView) { 4756 return false; 4757 } 4758 4759 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4760 return null; 4761 } 4762 4763 public void createContextMenu(ContextMenu menu) { 4764 } 4765 4766 public void childDrawableStateChanged(View child) { 4767 } 4768 4769 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4770 if (mView == null) { 4771 return false; 4772 } 4773 // Intercept accessibility focus events fired by virtual nodes to keep 4774 // track of accessibility focus position in such nodes. 4775 final int eventType = event.getEventType(); 4776 switch (eventType) { 4777 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4778 final long sourceNodeId = event.getSourceNodeId(); 4779 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4780 sourceNodeId); 4781 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4782 if (source != null) { 4783 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4784 if (provider != null) { 4785 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4786 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4787 setAccessibilityFocus(source, node); 4788 } 4789 } 4790 } break; 4791 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4792 final long sourceNodeId = event.getSourceNodeId(); 4793 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4794 sourceNodeId); 4795 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4796 if (source != null) { 4797 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4798 if (provider != null) { 4799 setAccessibilityFocus(null, null); 4800 } 4801 } 4802 } break; 4803 } 4804 mAccessibilityManager.sendAccessibilityEvent(event); 4805 return true; 4806 } 4807 4808 @Override 4809 public void childAccessibilityStateChanged(View child) { 4810 postSendWindowContentChangedCallback(child); 4811 } 4812 4813 private View getCommonPredecessor(View first, View second) { 4814 if (mAttachInfo != null) { 4815 if (mTempHashSet == null) { 4816 mTempHashSet = new HashSet<View>(); 4817 } 4818 HashSet<View> seen = mTempHashSet; 4819 seen.clear(); 4820 View firstCurrent = first; 4821 while (firstCurrent != null) { 4822 seen.add(firstCurrent); 4823 ViewParent firstCurrentParent = firstCurrent.mParent; 4824 if (firstCurrentParent instanceof View) { 4825 firstCurrent = (View) firstCurrentParent; 4826 } else { 4827 firstCurrent = null; 4828 } 4829 } 4830 View secondCurrent = second; 4831 while (secondCurrent != null) { 4832 if (seen.contains(secondCurrent)) { 4833 seen.clear(); 4834 return secondCurrent; 4835 } 4836 ViewParent secondCurrentParent = secondCurrent.mParent; 4837 if (secondCurrentParent instanceof View) { 4838 secondCurrent = (View) secondCurrentParent; 4839 } else { 4840 secondCurrent = null; 4841 } 4842 } 4843 seen.clear(); 4844 } 4845 return null; 4846 } 4847 4848 void checkThread() { 4849 if (mThread != Thread.currentThread()) { 4850 throw new CalledFromWrongThreadException( 4851 "Only the original thread that created a view hierarchy can touch its views."); 4852 } 4853 } 4854 4855 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4856 // ViewAncestor never intercepts touch event, so this can be a no-op 4857 } 4858 4859 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4860 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4861 if (rectangle != null) { 4862 mTempRect.set(rectangle); 4863 mTempRect.offset(0, -mCurScrollY); 4864 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4865 try { 4866 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4867 } catch (RemoteException re) { 4868 /* ignore */ 4869 } 4870 } 4871 return scrolled; 4872 } 4873 4874 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4875 // Do nothing. 4876 } 4877 4878 class TakenSurfaceHolder extends BaseSurfaceHolder { 4879 @Override 4880 public boolean onAllowLockCanvas() { 4881 return mDrawingAllowed; 4882 } 4883 4884 @Override 4885 public void onRelayoutContainer() { 4886 // Not currently interesting -- from changing between fixed and layout size. 4887 } 4888 4889 public void setFormat(int format) { 4890 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4891 } 4892 4893 public void setType(int type) { 4894 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4895 } 4896 4897 @Override 4898 public void onUpdateSurface() { 4899 // We take care of format and type changes on our own. 4900 throw new IllegalStateException("Shouldn't be here"); 4901 } 4902 4903 public boolean isCreating() { 4904 return mIsCreating; 4905 } 4906 4907 @Override 4908 public void setFixedSize(int width, int height) { 4909 throw new UnsupportedOperationException( 4910 "Currently only support sizing from layout"); 4911 } 4912 4913 public void setKeepScreenOn(boolean screenOn) { 4914 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4915 } 4916 } 4917 4918 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4919 private WeakReference<ViewRootImpl> mViewAncestor; 4920 4921 public InputMethodCallback(ViewRootImpl viewAncestor) { 4922 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4923 } 4924 4925 @Override 4926 public void finishedEvent(int seq, boolean handled) { 4927 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4928 if (viewAncestor != null) { 4929 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4930 } 4931 } 4932 } 4933 4934 static class W extends IWindow.Stub { 4935 private final WeakReference<ViewRootImpl> mViewAncestor; 4936 private final IWindowSession mWindowSession; 4937 4938 W(ViewRootImpl viewAncestor) { 4939 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4940 mWindowSession = viewAncestor.mWindowSession; 4941 } 4942 4943 public void resized(Rect frame, Rect contentInsets, 4944 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4945 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4946 if (viewAncestor != null) { 4947 viewAncestor.dispatchResized(frame, contentInsets, 4948 visibleInsets, reportDraw, newConfig); 4949 } 4950 } 4951 4952 @Override 4953 public void moved(int newX, int newY) { 4954 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4955 if (viewAncestor != null) { 4956 viewAncestor.dispatchMoved(newX, newY); 4957 } 4958 } 4959 4960 public void dispatchAppVisibility(boolean visible) { 4961 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4962 if (viewAncestor != null) { 4963 viewAncestor.dispatchAppVisibility(visible); 4964 } 4965 } 4966 4967 public void dispatchScreenState(boolean on) { 4968 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4969 if (viewAncestor != null) { 4970 viewAncestor.dispatchScreenStateChange(on); 4971 } 4972 } 4973 4974 public void dispatchGetNewSurface() { 4975 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4976 if (viewAncestor != null) { 4977 viewAncestor.dispatchGetNewSurface(); 4978 } 4979 } 4980 4981 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4982 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4983 if (viewAncestor != null) { 4984 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4985 } 4986 } 4987 4988 private static int checkCallingPermission(String permission) { 4989 try { 4990 return ActivityManagerNative.getDefault().checkPermission( 4991 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4992 } catch (RemoteException e) { 4993 return PackageManager.PERMISSION_DENIED; 4994 } 4995 } 4996 4997 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4998 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4999 if (viewAncestor != null) { 5000 final View view = viewAncestor.mView; 5001 if (view != null) { 5002 if (checkCallingPermission(Manifest.permission.DUMP) != 5003 PackageManager.PERMISSION_GRANTED) { 5004 throw new SecurityException("Insufficient permissions to invoke" 5005 + " executeCommand() from pid=" + Binder.getCallingPid() 5006 + ", uid=" + Binder.getCallingUid()); 5007 } 5008 5009 OutputStream clientStream = null; 5010 try { 5011 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5012 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5013 } catch (IOException e) { 5014 e.printStackTrace(); 5015 } finally { 5016 if (clientStream != null) { 5017 try { 5018 clientStream.close(); 5019 } catch (IOException e) { 5020 e.printStackTrace(); 5021 } 5022 } 5023 } 5024 } 5025 } 5026 } 5027 5028 public void closeSystemDialogs(String reason) { 5029 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5030 if (viewAncestor != null) { 5031 viewAncestor.dispatchCloseSystemDialogs(reason); 5032 } 5033 } 5034 5035 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5036 boolean sync) { 5037 if (sync) { 5038 try { 5039 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5040 } catch (RemoteException e) { 5041 } 5042 } 5043 } 5044 5045 public void dispatchWallpaperCommand(String action, int x, int y, 5046 int z, Bundle extras, boolean sync) { 5047 if (sync) { 5048 try { 5049 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5050 } catch (RemoteException e) { 5051 } 5052 } 5053 } 5054 5055 /* Drag/drop */ 5056 public void dispatchDragEvent(DragEvent event) { 5057 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5058 if (viewAncestor != null) { 5059 viewAncestor.dispatchDragEvent(event); 5060 } 5061 } 5062 5063 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5064 int localValue, int localChanges) { 5065 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5066 if (viewAncestor != null) { 5067 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5068 localValue, localChanges); 5069 } 5070 } 5071 5072 public void doneAnimating() { 5073 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5074 if (viewAncestor != null) { 5075 viewAncestor.dispatchDoneAnimating(); 5076 } 5077 } 5078 } 5079 5080 /** 5081 * Maintains state information for a single trackball axis, generating 5082 * discrete (DPAD) movements based on raw trackball motion. 5083 */ 5084 static final class TrackballAxis { 5085 /** 5086 * The maximum amount of acceleration we will apply. 5087 */ 5088 static final float MAX_ACCELERATION = 20; 5089 5090 /** 5091 * The maximum amount of time (in milliseconds) between events in order 5092 * for us to consider the user to be doing fast trackball movements, 5093 * and thus apply an acceleration. 5094 */ 5095 static final long FAST_MOVE_TIME = 150; 5096 5097 /** 5098 * Scaling factor to the time (in milliseconds) between events to how 5099 * much to multiple/divide the current acceleration. When movement 5100 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5101 * FAST_MOVE_TIME it divides it. 5102 */ 5103 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5104 5105 float position; 5106 float absPosition; 5107 float acceleration = 1; 5108 long lastMoveTime = 0; 5109 int step; 5110 int dir; 5111 int nonAccelMovement; 5112 5113 void reset(int _step) { 5114 position = 0; 5115 acceleration = 1; 5116 lastMoveTime = 0; 5117 step = _step; 5118 dir = 0; 5119 } 5120 5121 /** 5122 * Add trackball movement into the state. If the direction of movement 5123 * has been reversed, the state is reset before adding the 5124 * movement (so that you don't have to compensate for any previously 5125 * collected movement before see the result of the movement in the 5126 * new direction). 5127 * 5128 * @return Returns the absolute value of the amount of movement 5129 * collected so far. 5130 */ 5131 float collect(float off, long time, String axis) { 5132 long normTime; 5133 if (off > 0) { 5134 normTime = (long)(off * FAST_MOVE_TIME); 5135 if (dir < 0) { 5136 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5137 position = 0; 5138 step = 0; 5139 acceleration = 1; 5140 lastMoveTime = 0; 5141 } 5142 dir = 1; 5143 } else if (off < 0) { 5144 normTime = (long)((-off) * FAST_MOVE_TIME); 5145 if (dir > 0) { 5146 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5147 position = 0; 5148 step = 0; 5149 acceleration = 1; 5150 lastMoveTime = 0; 5151 } 5152 dir = -1; 5153 } else { 5154 normTime = 0; 5155 } 5156 5157 // The number of milliseconds between each movement that is 5158 // considered "normal" and will not result in any acceleration 5159 // or deceleration, scaled by the offset we have here. 5160 if (normTime > 0) { 5161 long delta = time - lastMoveTime; 5162 lastMoveTime = time; 5163 float acc = acceleration; 5164 if (delta < normTime) { 5165 // The user is scrolling rapidly, so increase acceleration. 5166 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5167 if (scale > 1) acc *= scale; 5168 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5169 + off + " normTime=" + normTime + " delta=" + delta 5170 + " scale=" + scale + " acc=" + acc); 5171 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5172 } else { 5173 // The user is scrolling slowly, so decrease acceleration. 5174 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5175 if (scale > 1) acc /= scale; 5176 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5177 + off + " normTime=" + normTime + " delta=" + delta 5178 + " scale=" + scale + " acc=" + acc); 5179 acceleration = acc > 1 ? acc : 1; 5180 } 5181 } 5182 position += off; 5183 return (absPosition = Math.abs(position)); 5184 } 5185 5186 /** 5187 * Generate the number of discrete movement events appropriate for 5188 * the currently collected trackball movement. 5189 * 5190 * @param precision The minimum movement required to generate the 5191 * first discrete movement. 5192 * 5193 * @return Returns the number of discrete movements, either positive 5194 * or negative, or 0 if there is not enough trackball movement yet 5195 * for a discrete movement. 5196 */ 5197 int generate(float precision) { 5198 int movement = 0; 5199 nonAccelMovement = 0; 5200 do { 5201 final int dir = position >= 0 ? 1 : -1; 5202 switch (step) { 5203 // If we are going to execute the first step, then we want 5204 // to do this as soon as possible instead of waiting for 5205 // a full movement, in order to make things look responsive. 5206 case 0: 5207 if (absPosition < precision) { 5208 return movement; 5209 } 5210 movement += dir; 5211 nonAccelMovement += dir; 5212 step = 1; 5213 break; 5214 // If we have generated the first movement, then we need 5215 // to wait for the second complete trackball motion before 5216 // generating the second discrete movement. 5217 case 1: 5218 if (absPosition < 2) { 5219 return movement; 5220 } 5221 movement += dir; 5222 nonAccelMovement += dir; 5223 position += dir > 0 ? -2 : 2; 5224 absPosition = Math.abs(position); 5225 step = 2; 5226 break; 5227 // After the first two, we generate discrete movements 5228 // consistently with the trackball, applying an acceleration 5229 // if the trackball is moving quickly. This is a simple 5230 // acceleration on top of what we already compute based 5231 // on how quickly the wheel is being turned, to apply 5232 // a longer increasing acceleration to continuous movement 5233 // in one direction. 5234 default: 5235 if (absPosition < 1) { 5236 return movement; 5237 } 5238 movement += dir; 5239 position += dir >= 0 ? -1 : 1; 5240 absPosition = Math.abs(position); 5241 float acc = acceleration; 5242 acc *= 1.1f; 5243 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5244 break; 5245 } 5246 } while (true); 5247 } 5248 } 5249 5250 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5251 public CalledFromWrongThreadException(String msg) { 5252 super(msg); 5253 } 5254 } 5255 5256 private SurfaceHolder mHolder = new SurfaceHolder() { 5257 // we only need a SurfaceHolder for opengl. it would be nice 5258 // to implement everything else though, especially the callback 5259 // support (opengl doesn't make use of it right now, but eventually 5260 // will). 5261 public Surface getSurface() { 5262 return mSurface; 5263 } 5264 5265 public boolean isCreating() { 5266 return false; 5267 } 5268 5269 public void addCallback(Callback callback) { 5270 } 5271 5272 public void removeCallback(Callback callback) { 5273 } 5274 5275 public void setFixedSize(int width, int height) { 5276 } 5277 5278 public void setSizeFromLayout() { 5279 } 5280 5281 public void setFormat(int format) { 5282 } 5283 5284 public void setType(int type) { 5285 } 5286 5287 public void setKeepScreenOn(boolean screenOn) { 5288 } 5289 5290 public Canvas lockCanvas() { 5291 return null; 5292 } 5293 5294 public Canvas lockCanvas(Rect dirty) { 5295 return null; 5296 } 5297 5298 public void unlockCanvasAndPost(Canvas canvas) { 5299 } 5300 public Rect getSurfaceFrame() { 5301 return null; 5302 } 5303 }; 5304 5305 static RunQueue getRunQueue() { 5306 RunQueue rq = sRunQueues.get(); 5307 if (rq != null) { 5308 return rq; 5309 } 5310 rq = new RunQueue(); 5311 sRunQueues.set(rq); 5312 return rq; 5313 } 5314 5315 /** 5316 * The run queue is used to enqueue pending work from Views when no Handler is 5317 * attached. The work is executed during the next call to performTraversals on 5318 * the thread. 5319 * @hide 5320 */ 5321 static final class RunQueue { 5322 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5323 5324 void post(Runnable action) { 5325 postDelayed(action, 0); 5326 } 5327 5328 void postDelayed(Runnable action, long delayMillis) { 5329 HandlerAction handlerAction = new HandlerAction(); 5330 handlerAction.action = action; 5331 handlerAction.delay = delayMillis; 5332 5333 synchronized (mActions) { 5334 mActions.add(handlerAction); 5335 } 5336 } 5337 5338 void removeCallbacks(Runnable action) { 5339 final HandlerAction handlerAction = new HandlerAction(); 5340 handlerAction.action = action; 5341 5342 synchronized (mActions) { 5343 final ArrayList<HandlerAction> actions = mActions; 5344 5345 while (actions.remove(handlerAction)) { 5346 // Keep going 5347 } 5348 } 5349 } 5350 5351 void executeActions(Handler handler) { 5352 synchronized (mActions) { 5353 final ArrayList<HandlerAction> actions = mActions; 5354 final int count = actions.size(); 5355 5356 for (int i = 0; i < count; i++) { 5357 final HandlerAction handlerAction = actions.get(i); 5358 handler.postDelayed(handlerAction.action, handlerAction.delay); 5359 } 5360 5361 actions.clear(); 5362 } 5363 } 5364 5365 private static class HandlerAction { 5366 Runnable action; 5367 long delay; 5368 5369 @Override 5370 public boolean equals(Object o) { 5371 if (this == o) return true; 5372 if (o == null || getClass() != o.getClass()) return false; 5373 5374 HandlerAction that = (HandlerAction) o; 5375 return !(action != null ? !action.equals(that.action) : that.action != null); 5376 5377 } 5378 5379 @Override 5380 public int hashCode() { 5381 int result = action != null ? action.hashCode() : 0; 5382 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5383 return result; 5384 } 5385 } 5386 } 5387 5388 /** 5389 * Class for managing the accessibility interaction connection 5390 * based on the global accessibility state. 5391 */ 5392 final class AccessibilityInteractionConnectionManager 5393 implements AccessibilityStateChangeListener { 5394 public void onAccessibilityStateChanged(boolean enabled) { 5395 if (enabled) { 5396 ensureConnection(); 5397 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5398 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5399 View focusedView = mView.findFocus(); 5400 if (focusedView != null && focusedView != mView) { 5401 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5402 } 5403 } 5404 } else { 5405 ensureNoConnection(); 5406 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5407 } 5408 } 5409 5410 public void ensureConnection() { 5411 if (mAttachInfo != null) { 5412 final boolean registered = 5413 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5414 if (!registered) { 5415 mAttachInfo.mAccessibilityWindowId = 5416 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5417 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5418 } 5419 } 5420 } 5421 5422 public void ensureNoConnection() { 5423 final boolean registered = 5424 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5425 if (registered) { 5426 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5427 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5428 } 5429 } 5430 } 5431 5432 /** 5433 * This class is an interface this ViewAncestor provides to the 5434 * AccessibilityManagerService to the latter can interact with 5435 * the view hierarchy in this ViewAncestor. 5436 */ 5437 static final class AccessibilityInteractionConnection 5438 extends IAccessibilityInteractionConnection.Stub { 5439 private final WeakReference<ViewRootImpl> mViewRootImpl; 5440 5441 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5442 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5443 } 5444 5445 @Override 5446 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5447 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5448 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5449 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5450 if (viewRootImpl != null && viewRootImpl.mView != null) { 5451 viewRootImpl.getAccessibilityInteractionController() 5452 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5453 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5454 spec); 5455 } else { 5456 // We cannot make the call and notify the caller so it does not wait. 5457 try { 5458 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5459 } catch (RemoteException re) { 5460 /* best effort - ignore */ 5461 } 5462 } 5463 } 5464 5465 @Override 5466 public void performAccessibilityAction(long accessibilityNodeId, int action, 5467 Bundle arguments, int interactionId, 5468 IAccessibilityInteractionConnectionCallback callback, int flags, 5469 int interogatingPid, long interrogatingTid) { 5470 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5471 if (viewRootImpl != null && viewRootImpl.mView != null) { 5472 viewRootImpl.getAccessibilityInteractionController() 5473 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5474 interactionId, callback, flags, interogatingPid, interrogatingTid); 5475 } else { 5476 // We cannot make the call and notify the caller so it does not wait. 5477 try { 5478 callback.setPerformAccessibilityActionResult(false, interactionId); 5479 } catch (RemoteException re) { 5480 /* best effort - ignore */ 5481 } 5482 } 5483 } 5484 5485 @Override 5486 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5487 String viewId, int interactionId, 5488 IAccessibilityInteractionConnectionCallback callback, int flags, 5489 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5490 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5491 if (viewRootImpl != null && viewRootImpl.mView != null) { 5492 viewRootImpl.getAccessibilityInteractionController() 5493 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5494 viewId, interactionId, callback, flags, interrogatingPid, 5495 interrogatingTid, spec); 5496 } else { 5497 // We cannot make the call and notify the caller so it does not wait. 5498 try { 5499 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5500 } catch (RemoteException re) { 5501 /* best effort - ignore */ 5502 } 5503 } 5504 } 5505 5506 @Override 5507 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5508 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5509 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5510 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5511 if (viewRootImpl != null && viewRootImpl.mView != null) { 5512 viewRootImpl.getAccessibilityInteractionController() 5513 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5514 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5515 spec); 5516 } else { 5517 // We cannot make the call and notify the caller so it does not wait. 5518 try { 5519 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5520 } catch (RemoteException re) { 5521 /* best effort - ignore */ 5522 } 5523 } 5524 } 5525 5526 @Override 5527 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5528 IAccessibilityInteractionConnectionCallback callback, int flags, 5529 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5530 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5531 if (viewRootImpl != null && viewRootImpl.mView != null) { 5532 viewRootImpl.getAccessibilityInteractionController() 5533 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5534 flags, interrogatingPid, interrogatingTid, spec); 5535 } else { 5536 // We cannot make the call and notify the caller so it does not wait. 5537 try { 5538 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5539 } catch (RemoteException re) { 5540 /* best effort - ignore */ 5541 } 5542 } 5543 } 5544 5545 @Override 5546 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5547 IAccessibilityInteractionConnectionCallback callback, int flags, 5548 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5549 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5550 if (viewRootImpl != null && viewRootImpl.mView != null) { 5551 viewRootImpl.getAccessibilityInteractionController() 5552 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5553 callback, flags, interrogatingPid, interrogatingTid, spec); 5554 } else { 5555 // We cannot make the call and notify the caller so it does not wait. 5556 try { 5557 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5558 } catch (RemoteException re) { 5559 /* best effort - ignore */ 5560 } 5561 } 5562 } 5563 } 5564 5565 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5566 public View mSource; 5567 5568 public void run() { 5569 if (mSource != null) { 5570 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5571 mSource.resetAccessibilityStateChanged(); 5572 mSource = null; 5573 } 5574 } 5575 } 5576} 5577