ViewRootImpl.java revision d0fd54648ca6249f56cf469c57181b5a7bbb71d0
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.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 743 = mAttachInfo.mHardwareRenderer != null; 744 745 } else if (fakeHwAccelerated) { 746 // The window had wanted to use hardware acceleration, but this 747 // is not allowed in its process. By setting this flag, it can 748 // still render as if it was accelerated. This is basically for 749 // the preview windows the window manager shows for launching 750 // applications, so they will look more like the app being launched. 751 mAttachInfo.mHardwareAccelerationRequested = true; 752 } 753 } 754 } 755 756 public View getView() { 757 return mView; 758 } 759 760 final WindowLeaked getLocation() { 761 return mLocation; 762 } 763 764 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 765 synchronized (this) { 766 int oldSoftInputMode = mWindowAttributes.softInputMode; 767 // Keep track of the actual window flags supplied by the client. 768 mClientWindowLayoutFlags = attrs.flags; 769 // preserve compatible window flag if exists. 770 int compatibleWindowFlag = 771 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 772 // transfer over system UI visibility values as they carry current state. 773 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 774 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 775 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 776 mWindowAttributes.flags |= compatibleWindowFlag; 777 778 applyKeepScreenOnFlag(mWindowAttributes); 779 780 if (newView) { 781 mSoftInputMode = attrs.softInputMode; 782 requestLayout(); 783 } 784 // Don't lose the mode we last auto-computed. 785 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 786 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 787 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 788 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 789 | (oldSoftInputMode 790 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 791 } 792 mWindowAttributesChanged = true; 793 scheduleTraversals(); 794 } 795 } 796 797 void handleAppVisibility(boolean visible) { 798 if (mAppVisible != visible) { 799 mAppVisible = visible; 800 scheduleTraversals(); 801 } 802 } 803 804 void handleGetNewSurface() { 805 mNewSurfaceNeeded = true; 806 mFullRedrawNeeded = true; 807 scheduleTraversals(); 808 } 809 810 void handleScreenStateChange(boolean on) { 811 if (on != mAttachInfo.mScreenOn) { 812 mAttachInfo.mScreenOn = on; 813 if (mView != null) { 814 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 815 } 816 if (on) { 817 mFullRedrawNeeded = true; 818 scheduleTraversals(); 819 } 820 } 821 } 822 823 @Override 824 public void requestFitSystemWindows() { 825 checkThread(); 826 mFitSystemWindowsRequested = true; 827 scheduleTraversals(); 828 } 829 830 @Override 831 public void requestLayout() { 832 if (!mHandlingLayoutInLayoutRequest) { 833 checkThread(); 834 mLayoutRequested = true; 835 scheduleTraversals(); 836 } 837 } 838 839 @Override 840 public boolean isLayoutRequested() { 841 return mLayoutRequested; 842 } 843 844 void invalidate() { 845 mDirty.set(0, 0, mWidth, mHeight); 846 scheduleTraversals(); 847 } 848 849 void invalidateWorld(View view) { 850 view.invalidate(); 851 if (view instanceof ViewGroup) { 852 ViewGroup parent = (ViewGroup) view; 853 for (int i = 0; i < parent.getChildCount(); i++) { 854 invalidateWorld(parent.getChildAt(i)); 855 } 856 } 857 } 858 859 @Override 860 public void invalidateChild(View child, Rect dirty) { 861 invalidateChildInParent(null, dirty); 862 } 863 864 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 865 checkThread(); 866 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 867 868 if (dirty == null) { 869 invalidate(); 870 return null; 871 } else if (dirty.isEmpty() && !mIsAnimating) { 872 return null; 873 } 874 875 if (mCurScrollY != 0 || mTranslator != null) { 876 mTempRect.set(dirty); 877 dirty = mTempRect; 878 if (mCurScrollY != 0) { 879 dirty.offset(0, -mCurScrollY); 880 } 881 if (mTranslator != null) { 882 mTranslator.translateRectInAppWindowToScreen(dirty); 883 } 884 if (mAttachInfo.mScalingRequired) { 885 dirty.inset(-1, -1); 886 } 887 } 888 889 final Rect localDirty = mDirty; 890 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 891 mAttachInfo.mSetIgnoreDirtyState = true; 892 mAttachInfo.mIgnoreDirtyState = true; 893 } 894 895 // Add the new dirty rect to the current one 896 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 897 // Intersect with the bounds of the window to skip 898 // updates that lie outside of the visible region 899 final float appScale = mAttachInfo.mApplicationScale; 900 final boolean intersected = localDirty.intersect(0, 0, 901 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 902 if (!intersected) { 903 localDirty.setEmpty(); 904 } 905 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 906 scheduleTraversals(); 907 } 908 909 return null; 910 } 911 912 void setStopped(boolean stopped) { 913 if (mStopped != stopped) { 914 mStopped = stopped; 915 if (!stopped) { 916 scheduleTraversals(); 917 } 918 } 919 } 920 921 public ViewParent getParent() { 922 return null; 923 } 924 925 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 926 if (child != mView) { 927 throw new RuntimeException("child is not mine, honest!"); 928 } 929 // Note: don't apply scroll offset, because we want to know its 930 // visibility in the virtual canvas being given to the view hierarchy. 931 return r.intersect(0, 0, mWidth, mHeight); 932 } 933 934 public void bringChildToFront(View child) { 935 } 936 937 int getHostVisibility() { 938 return mAppVisible ? mView.getVisibility() : View.GONE; 939 } 940 941 void disposeResizeBuffer() { 942 if (mResizeBuffer != null) { 943 mResizeBuffer.destroy(); 944 mResizeBuffer = null; 945 } 946 } 947 948 /** 949 * Add LayoutTransition to the list of transitions to be started in the next traversal. 950 * This list will be cleared after the transitions on the list are start()'ed. These 951 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 952 * happens during the layout phase of traversal, which we want to complete before any of the 953 * animations are started (because those animations may side-effect properties that layout 954 * depends upon, like the bounding rectangles of the affected views). So we add the transition 955 * to the list and it is started just prior to starting the drawing phase of traversal. 956 * 957 * @param transition The LayoutTransition to be started on the next traversal. 958 * 959 * @hide 960 */ 961 public void requestTransitionStart(LayoutTransition transition) { 962 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 963 if (mPendingTransitions == null) { 964 mPendingTransitions = new ArrayList<LayoutTransition>(); 965 } 966 mPendingTransitions.add(transition); 967 } 968 } 969 970 void scheduleTraversals() { 971 if (!mTraversalScheduled) { 972 mTraversalScheduled = true; 973 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 974 mChoreographer.postCallback( 975 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 976 scheduleConsumeBatchedInput(); 977 } 978 } 979 980 void unscheduleTraversals() { 981 if (mTraversalScheduled) { 982 mTraversalScheduled = false; 983 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 984 mChoreographer.removeCallbacks( 985 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 986 } 987 } 988 989 void doTraversal() { 990 if (mTraversalScheduled) { 991 mTraversalScheduled = false; 992 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 993 994 if (mProfile) { 995 Debug.startMethodTracing("ViewAncestor"); 996 } 997 998 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 999 try { 1000 performTraversals(); 1001 } finally { 1002 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1003 } 1004 1005 if (mProfile) { 1006 Debug.stopMethodTracing(); 1007 mProfile = false; 1008 } 1009 } 1010 } 1011 1012 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1013 // Update window's global keep screen on flag: if a view has requested 1014 // that the screen be kept on, then it is always set; otherwise, it is 1015 // set to whatever the client last requested for the global state. 1016 if (mAttachInfo.mKeepScreenOn) { 1017 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1018 } else { 1019 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1020 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1021 } 1022 } 1023 1024 private boolean collectViewAttributes() { 1025 final View.AttachInfo attachInfo = mAttachInfo; 1026 if (attachInfo.mRecomputeGlobalAttributes) { 1027 //Log.i(TAG, "Computing view hierarchy attributes!"); 1028 attachInfo.mRecomputeGlobalAttributes = false; 1029 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1030 attachInfo.mKeepScreenOn = false; 1031 attachInfo.mSystemUiVisibility = 0; 1032 attachInfo.mHasSystemUiListeners = false; 1033 mView.dispatchCollectViewAttributes(attachInfo, 0); 1034 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1035 WindowManager.LayoutParams params = mWindowAttributes; 1036 if (attachInfo.mKeepScreenOn != oldScreenOn 1037 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1038 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1039 applyKeepScreenOnFlag(params); 1040 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1041 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1042 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1043 return true; 1044 } 1045 } 1046 return false; 1047 } 1048 1049 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1050 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1051 int childWidthMeasureSpec; 1052 int childHeightMeasureSpec; 1053 boolean windowSizeMayChange = false; 1054 1055 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1056 "Measuring " + host + " in display " + desiredWindowWidth 1057 + "x" + desiredWindowHeight + "..."); 1058 1059 boolean goodMeasure = false; 1060 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1061 // On large screens, we don't want to allow dialogs to just 1062 // stretch to fill the entire width of the screen to display 1063 // one line of text. First try doing the layout at a smaller 1064 // size to see if it will fit. 1065 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1066 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1067 int baseSize = 0; 1068 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1069 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1070 } 1071 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1072 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1073 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1074 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1075 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1076 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1077 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1078 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1079 goodMeasure = true; 1080 } else { 1081 // Didn't fit in that size... try expanding a bit. 1082 baseSize = (baseSize+desiredWindowWidth)/2; 1083 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1084 + baseSize); 1085 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1086 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1087 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1088 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1089 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1090 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1091 goodMeasure = true; 1092 } 1093 } 1094 } 1095 } 1096 1097 if (!goodMeasure) { 1098 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1099 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1100 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1101 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1102 windowSizeMayChange = true; 1103 } 1104 } 1105 1106 if (DBG) { 1107 System.out.println("======================================"); 1108 System.out.println("performTraversals -- after measure"); 1109 host.debug(); 1110 } 1111 1112 return windowSizeMayChange; 1113 } 1114 1115 private void performTraversals() { 1116 // cache mView since it is used so much below... 1117 final View host = mView; 1118 1119 if (DBG) { 1120 System.out.println("======================================"); 1121 System.out.println("performTraversals"); 1122 host.debug(); 1123 } 1124 1125 if (host == null || !mAdded) 1126 return; 1127 1128 mIsInTraversal = true; 1129 mWillDrawSoon = true; 1130 boolean windowSizeMayChange = false; 1131 boolean newSurface = false; 1132 boolean surfaceChanged = false; 1133 WindowManager.LayoutParams lp = mWindowAttributes; 1134 1135 int desiredWindowWidth; 1136 int desiredWindowHeight; 1137 1138 final View.AttachInfo attachInfo = mAttachInfo; 1139 1140 final int viewVisibility = getHostVisibility(); 1141 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1142 || mNewSurfaceNeeded; 1143 1144 WindowManager.LayoutParams params = null; 1145 if (mWindowAttributesChanged) { 1146 mWindowAttributesChanged = false; 1147 surfaceChanged = true; 1148 params = lp; 1149 } 1150 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1151 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1152 params = lp; 1153 mFullRedrawNeeded = true; 1154 mLayoutRequested = true; 1155 if (mLastInCompatMode) { 1156 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1157 mLastInCompatMode = false; 1158 } else { 1159 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1160 mLastInCompatMode = true; 1161 } 1162 } 1163 1164 mWindowAttributesChangesFlag = 0; 1165 1166 Rect frame = mWinFrame; 1167 if (mFirst) { 1168 mFullRedrawNeeded = true; 1169 mLayoutRequested = true; 1170 1171 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1172 // NOTE -- system code, won't try to do compat mode. 1173 Point size = new Point(); 1174 mDisplay.getRealSize(size); 1175 desiredWindowWidth = size.x; 1176 desiredWindowHeight = size.y; 1177 } else { 1178 DisplayMetrics packageMetrics = 1179 mView.getContext().getResources().getDisplayMetrics(); 1180 desiredWindowWidth = packageMetrics.widthPixels; 1181 desiredWindowHeight = packageMetrics.heightPixels; 1182 } 1183 1184 // For the very first time, tell the view hierarchy that it 1185 // is attached to the window. Note that at this point the surface 1186 // object is not initialized to its backing store, but soon it 1187 // will be (assuming the window is visible). 1188 attachInfo.mSurface = mSurface; 1189 // We used to use the following condition to choose 32 bits drawing caches: 1190 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1191 // However, windows are now always 32 bits by default, so choose 32 bits 1192 attachInfo.mUse32BitDrawingCache = true; 1193 attachInfo.mHasWindowFocus = false; 1194 attachInfo.mWindowVisibility = viewVisibility; 1195 attachInfo.mRecomputeGlobalAttributes = false; 1196 viewVisibilityChanged = false; 1197 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1198 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1199 // Set the layout direction if it has not been set before (inherit is the default) 1200 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1201 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1202 } 1203 host.dispatchAttachedToWindow(attachInfo, 0); 1204 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1205 host.fitSystemWindows(mFitSystemWindowsInsets); 1206 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1207 1208 } else { 1209 desiredWindowWidth = frame.width(); 1210 desiredWindowHeight = frame.height(); 1211 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1212 if (DEBUG_ORIENTATION) Log.v(TAG, 1213 "View " + host + " resized to: " + frame); 1214 mFullRedrawNeeded = true; 1215 mLayoutRequested = true; 1216 windowSizeMayChange = true; 1217 } 1218 } 1219 1220 if (viewVisibilityChanged) { 1221 attachInfo.mWindowVisibility = viewVisibility; 1222 host.dispatchWindowVisibilityChanged(viewVisibility); 1223 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1224 destroyHardwareResources(); 1225 } 1226 if (viewVisibility == View.GONE) { 1227 // After making a window gone, we will count it as being 1228 // shown for the first time the next time it gets focus. 1229 mHasHadWindowFocus = false; 1230 } 1231 } 1232 1233 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1234 getRunQueue().executeActions(attachInfo.mHandler); 1235 1236 boolean insetsChanged = false; 1237 1238 boolean layoutRequested = mLayoutRequested && !mStopped; 1239 if (layoutRequested) { 1240 1241 final Resources res = mView.getContext().getResources(); 1242 1243 if (mFirst) { 1244 // make sure touch mode code executes by setting cached value 1245 // to opposite of the added touch mode. 1246 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1247 ensureTouchModeLocally(mAddedTouchMode); 1248 } else { 1249 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1250 insetsChanged = true; 1251 } 1252 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1253 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1254 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1255 + mAttachInfo.mVisibleInsets); 1256 } 1257 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1258 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1259 windowSizeMayChange = true; 1260 1261 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1262 // NOTE -- system code, won't try to do compat mode. 1263 Point size = new Point(); 1264 mDisplay.getRealSize(size); 1265 desiredWindowWidth = size.x; 1266 desiredWindowHeight = size.y; 1267 } else { 1268 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1269 desiredWindowWidth = packageMetrics.widthPixels; 1270 desiredWindowHeight = packageMetrics.heightPixels; 1271 } 1272 } 1273 } 1274 1275 // Ask host how big it wants to be 1276 windowSizeMayChange |= measureHierarchy(host, lp, res, 1277 desiredWindowWidth, desiredWindowHeight); 1278 } 1279 1280 if (collectViewAttributes()) { 1281 params = lp; 1282 } 1283 if (attachInfo.mForceReportNewAttributes) { 1284 attachInfo.mForceReportNewAttributes = false; 1285 params = lp; 1286 } 1287 1288 if (mFirst || attachInfo.mViewVisibilityChanged) { 1289 attachInfo.mViewVisibilityChanged = false; 1290 int resizeMode = mSoftInputMode & 1291 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1292 // If we are in auto resize mode, then we need to determine 1293 // what mode to use now. 1294 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1295 final int N = attachInfo.mScrollContainers.size(); 1296 for (int i=0; i<N; i++) { 1297 if (attachInfo.mScrollContainers.get(i).isShown()) { 1298 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1299 } 1300 } 1301 if (resizeMode == 0) { 1302 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1303 } 1304 if ((lp.softInputMode & 1305 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1306 lp.softInputMode = (lp.softInputMode & 1307 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1308 resizeMode; 1309 params = lp; 1310 } 1311 } 1312 } 1313 1314 if (params != null && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1315 if (!PixelFormat.formatHasAlpha(params.format)) { 1316 params.format = PixelFormat.TRANSLUCENT; 1317 } 1318 } 1319 1320 if (mFitSystemWindowsRequested) { 1321 mFitSystemWindowsRequested = false; 1322 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1323 host.fitSystemWindows(mFitSystemWindowsInsets); 1324 if (mLayoutRequested) { 1325 // Short-circuit catching a new layout request here, so 1326 // we don't need to go through two layout passes when things 1327 // change due to fitting system windows, which can happen a lot. 1328 windowSizeMayChange |= measureHierarchy(host, lp, 1329 mView.getContext().getResources(), 1330 desiredWindowWidth, desiredWindowHeight); 1331 } 1332 } 1333 1334 if (layoutRequested) { 1335 // Clear this now, so that if anything requests a layout in the 1336 // rest of this function we will catch it and re-run a full 1337 // layout pass. 1338 mLayoutRequested = false; 1339 } 1340 1341 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1342 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1343 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1344 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1345 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1346 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1347 1348 final boolean computesInternalInsets = 1349 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1350 1351 boolean insetsPending = false; 1352 int relayoutResult = 0; 1353 1354 if (mFirst || windowShouldResize || insetsChanged || 1355 viewVisibilityChanged || params != null) { 1356 1357 if (viewVisibility == View.VISIBLE) { 1358 // If this window is giving internal insets to the window 1359 // manager, and it is being added or changing its visibility, 1360 // then we want to first give the window manager "fake" 1361 // insets to cause it to effectively ignore the content of 1362 // the window during layout. This avoids it briefly causing 1363 // other windows to resize/move based on the raw frame of the 1364 // window, waiting until we can finish laying out this window 1365 // and get back to the window manager with the ultimately 1366 // computed insets. 1367 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1368 } 1369 1370 if (mSurfaceHolder != null) { 1371 mSurfaceHolder.mSurfaceLock.lock(); 1372 mDrawingAllowed = true; 1373 } 1374 1375 boolean hwInitialized = false; 1376 boolean contentInsetsChanged = false; 1377 boolean visibleInsetsChanged; 1378 boolean hadSurface = mSurface.isValid(); 1379 1380 try { 1381 if (DEBUG_LAYOUT) { 1382 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1383 host.getMeasuredHeight() + ", params=" + params); 1384 } 1385 1386 final int surfaceGenerationId = mSurface.getGenerationId(); 1387 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1388 1389 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1390 + " content=" + mPendingContentInsets.toShortString() 1391 + " visible=" + mPendingVisibleInsets.toShortString() 1392 + " surface=" + mSurface); 1393 1394 if (mPendingConfiguration.seq != 0) { 1395 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1396 + mPendingConfiguration); 1397 updateConfiguration(mPendingConfiguration, !mFirst); 1398 mPendingConfiguration.seq = 0; 1399 } 1400 1401 contentInsetsChanged = !mPendingContentInsets.equals( 1402 mAttachInfo.mContentInsets); 1403 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1404 mAttachInfo.mVisibleInsets); 1405 if (contentInsetsChanged) { 1406 if (mWidth > 0 && mHeight > 0 && lp != null && 1407 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1408 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1409 mSurface != null && mSurface.isValid() && 1410 !mAttachInfo.mTurnOffWindowResizeAnim && 1411 mAttachInfo.mHardwareRenderer != null && 1412 mAttachInfo.mHardwareRenderer.isEnabled() && 1413 mAttachInfo.mHardwareRenderer.validate() && 1414 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1415 1416 disposeResizeBuffer(); 1417 1418 boolean completed = false; 1419 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1420 HardwareCanvas layerCanvas = null; 1421 try { 1422 if (mResizeBuffer == null) { 1423 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1424 mWidth, mHeight, false); 1425 } else if (mResizeBuffer.getWidth() != mWidth || 1426 mResizeBuffer.getHeight() != mHeight) { 1427 mResizeBuffer.resize(mWidth, mHeight); 1428 } 1429 // TODO: should handle create/resize failure 1430 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1431 layerCanvas.setViewport(mWidth, mHeight); 1432 layerCanvas.onPreDraw(null); 1433 final int restoreCount = layerCanvas.save(); 1434 1435 int yoff; 1436 final boolean scrolling = mScroller != null 1437 && mScroller.computeScrollOffset(); 1438 if (scrolling) { 1439 yoff = mScroller.getCurrY(); 1440 mScroller.abortAnimation(); 1441 } else { 1442 yoff = mScrollY; 1443 } 1444 1445 layerCanvas.translate(0, -yoff); 1446 if (mTranslator != null) { 1447 mTranslator.translateCanvas(layerCanvas); 1448 } 1449 1450 DisplayList displayList = mView.mDisplayList; 1451 if (displayList != null) { 1452 layerCanvas.drawDisplayList(displayList, null, 1453 DisplayList.FLAG_CLIP_CHILDREN); 1454 } else { 1455 mView.draw(layerCanvas); 1456 } 1457 1458 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1459 1460 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1461 mResizeBufferDuration = mView.getResources().getInteger( 1462 com.android.internal.R.integer.config_mediumAnimTime); 1463 completed = true; 1464 1465 layerCanvas.restoreToCount(restoreCount); 1466 } catch (OutOfMemoryError e) { 1467 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1468 } finally { 1469 if (layerCanvas != null) { 1470 layerCanvas.onPostDraw(); 1471 } 1472 if (mResizeBuffer != null) { 1473 mResizeBuffer.end(hwRendererCanvas); 1474 if (!completed) { 1475 mResizeBuffer.destroy(); 1476 mResizeBuffer = null; 1477 } 1478 } 1479 } 1480 } 1481 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1482 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1483 + mAttachInfo.mContentInsets); 1484 } 1485 if (contentInsetsChanged || mLastSystemUiVisibility != 1486 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1487 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1488 mFitSystemWindowsRequested = false; 1489 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1490 host.fitSystemWindows(mFitSystemWindowsInsets); 1491 } 1492 if (visibleInsetsChanged) { 1493 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1494 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1495 + mAttachInfo.mVisibleInsets); 1496 } 1497 1498 if (!hadSurface) { 1499 if (mSurface.isValid()) { 1500 // If we are creating a new surface, then we need to 1501 // completely redraw it. Also, when we get to the 1502 // point of drawing it we will hold off and schedule 1503 // a new traversal instead. This is so we can tell the 1504 // window manager about all of the windows being displayed 1505 // before actually drawing them, so it can display then 1506 // all at once. 1507 newSurface = true; 1508 mFullRedrawNeeded = true; 1509 mPreviousTransparentRegion.setEmpty(); 1510 1511 if (mAttachInfo.mHardwareRenderer != null) { 1512 try { 1513 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1514 mHolder.getSurface()); 1515 } catch (Surface.OutOfResourcesException e) { 1516 handleOutOfResourcesException(e); 1517 return; 1518 } 1519 } 1520 } 1521 } else if (!mSurface.isValid()) { 1522 // If the surface has been removed, then reset the scroll 1523 // positions. 1524 if (mLastScrolledFocus != null) { 1525 mLastScrolledFocus.clear(); 1526 } 1527 mScrollY = mCurScrollY = 0; 1528 if (mScroller != null) { 1529 mScroller.abortAnimation(); 1530 } 1531 disposeResizeBuffer(); 1532 // Our surface is gone 1533 if (mAttachInfo.mHardwareRenderer != null && 1534 mAttachInfo.mHardwareRenderer.isEnabled()) { 1535 mAttachInfo.mHardwareRenderer.destroy(true); 1536 } 1537 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1538 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1539 mFullRedrawNeeded = true; 1540 try { 1541 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1542 } catch (Surface.OutOfResourcesException e) { 1543 handleOutOfResourcesException(e); 1544 return; 1545 } 1546 } 1547 } catch (RemoteException e) { 1548 } 1549 1550 if (DEBUG_ORIENTATION) Log.v( 1551 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1552 1553 attachInfo.mWindowLeft = frame.left; 1554 attachInfo.mWindowTop = frame.top; 1555 1556 // !!FIXME!! This next section handles the case where we did not get the 1557 // window size we asked for. We should avoid this by getting a maximum size from 1558 // the window session beforehand. 1559 if (mWidth != frame.width() || mHeight != frame.height()) { 1560 mWidth = frame.width(); 1561 mHeight = frame.height(); 1562 } 1563 1564 if (mSurfaceHolder != null) { 1565 // The app owns the surface; tell it about what is going on. 1566 if (mSurface.isValid()) { 1567 // XXX .copyFrom() doesn't work! 1568 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1569 mSurfaceHolder.mSurface = mSurface; 1570 } 1571 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1572 mSurfaceHolder.mSurfaceLock.unlock(); 1573 if (mSurface.isValid()) { 1574 if (!hadSurface) { 1575 mSurfaceHolder.ungetCallbacks(); 1576 1577 mIsCreating = true; 1578 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1579 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1580 if (callbacks != null) { 1581 for (SurfaceHolder.Callback c : callbacks) { 1582 c.surfaceCreated(mSurfaceHolder); 1583 } 1584 } 1585 surfaceChanged = true; 1586 } 1587 if (surfaceChanged) { 1588 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1589 lp.format, mWidth, mHeight); 1590 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1591 if (callbacks != null) { 1592 for (SurfaceHolder.Callback c : callbacks) { 1593 c.surfaceChanged(mSurfaceHolder, lp.format, 1594 mWidth, mHeight); 1595 } 1596 } 1597 } 1598 mIsCreating = false; 1599 } else if (hadSurface) { 1600 mSurfaceHolder.ungetCallbacks(); 1601 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1602 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1603 if (callbacks != null) { 1604 for (SurfaceHolder.Callback c : callbacks) { 1605 c.surfaceDestroyed(mSurfaceHolder); 1606 } 1607 } 1608 mSurfaceHolder.mSurfaceLock.lock(); 1609 try { 1610 mSurfaceHolder.mSurface = new Surface(); 1611 } finally { 1612 mSurfaceHolder.mSurfaceLock.unlock(); 1613 } 1614 } 1615 } 1616 1617 if (mAttachInfo.mHardwareRenderer != null && 1618 mAttachInfo.mHardwareRenderer.isEnabled()) { 1619 if (hwInitialized || windowShouldResize || 1620 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1621 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1622 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1623 if (!hwInitialized) { 1624 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1625 mFullRedrawNeeded = true; 1626 } 1627 } 1628 } 1629 1630 if (!mStopped) { 1631 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1632 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1633 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1634 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1635 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1636 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1637 1638 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1639 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1640 + " mHeight=" + mHeight 1641 + " measuredHeight=" + host.getMeasuredHeight() 1642 + " coveredInsetsChanged=" + contentInsetsChanged); 1643 1644 // Ask host how big it wants to be 1645 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1646 1647 // Implementation of weights from WindowManager.LayoutParams 1648 // We just grow the dimensions as needed and re-measure if 1649 // needs be 1650 int width = host.getMeasuredWidth(); 1651 int height = host.getMeasuredHeight(); 1652 boolean measureAgain = false; 1653 1654 if (lp.horizontalWeight > 0.0f) { 1655 width += (int) ((mWidth - width) * lp.horizontalWeight); 1656 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1657 MeasureSpec.EXACTLY); 1658 measureAgain = true; 1659 } 1660 if (lp.verticalWeight > 0.0f) { 1661 height += (int) ((mHeight - height) * lp.verticalWeight); 1662 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1663 MeasureSpec.EXACTLY); 1664 measureAgain = true; 1665 } 1666 1667 if (measureAgain) { 1668 if (DEBUG_LAYOUT) Log.v(TAG, 1669 "And hey let's measure once more: width=" + width 1670 + " height=" + height); 1671 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1672 } 1673 1674 layoutRequested = true; 1675 } 1676 } 1677 } else { 1678 // Not the first pass and no window/insets/visibility change but the window 1679 // may have moved and we need check that and if so to update the left and right 1680 // in the attach info. We translate only the window frame since on window move 1681 // the window manager tells us only for the new frame but the insets are the 1682 // same and we do not want to translate them more than once. 1683 1684 // TODO: Well, we are checking whether the frame has changed similarly 1685 // to how this is done for the insets. This is however incorrect since 1686 // the insets and the frame are translated. For example, the old frame 1687 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1688 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1689 // true since we are comparing a not translated value to a translated one. 1690 // This scenario is rare but we may want to fix that. 1691 1692 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1693 || attachInfo.mWindowTop != frame.top); 1694 if (windowMoved) { 1695 if (mTranslator != null) { 1696 mTranslator.translateRectInScreenToAppWinFrame(frame); 1697 } 1698 attachInfo.mWindowLeft = frame.left; 1699 attachInfo.mWindowTop = frame.top; 1700 } 1701 } 1702 1703 final boolean didLayout = layoutRequested && !mStopped; 1704 boolean triggerGlobalLayoutListener = didLayout 1705 || attachInfo.mRecomputeGlobalAttributes; 1706 if (didLayout) { 1707 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1708 1709 // By this point all views have been sized and positionned 1710 // We can compute the transparent area 1711 1712 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1713 // start out transparent 1714 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1715 host.getLocationInWindow(mTmpLocation); 1716 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1717 mTmpLocation[0] + host.mRight - host.mLeft, 1718 mTmpLocation[1] + host.mBottom - host.mTop); 1719 1720 host.gatherTransparentRegion(mTransparentRegion); 1721 if (mTranslator != null) { 1722 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1723 } 1724 1725 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1726 mPreviousTransparentRegion.set(mTransparentRegion); 1727 // reconfigure window manager 1728 try { 1729 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1730 } catch (RemoteException e) { 1731 } 1732 } 1733 } 1734 1735 if (DBG) { 1736 System.out.println("======================================"); 1737 System.out.println("performTraversals -- after setFrame"); 1738 host.debug(); 1739 } 1740 } 1741 1742 if (triggerGlobalLayoutListener) { 1743 attachInfo.mRecomputeGlobalAttributes = false; 1744 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1745 1746 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1747 postSendWindowContentChangedCallback(mView); 1748 } 1749 } 1750 1751 if (computesInternalInsets) { 1752 // Clear the original insets. 1753 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1754 insets.reset(); 1755 1756 // Compute new insets in place. 1757 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1758 1759 // Tell the window manager. 1760 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1761 mLastGivenInsets.set(insets); 1762 1763 // Translate insets to screen coordinates if needed. 1764 final Rect contentInsets; 1765 final Rect visibleInsets; 1766 final Region touchableRegion; 1767 if (mTranslator != null) { 1768 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1769 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1770 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1771 } else { 1772 contentInsets = insets.contentInsets; 1773 visibleInsets = insets.visibleInsets; 1774 touchableRegion = insets.touchableRegion; 1775 } 1776 1777 try { 1778 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1779 contentInsets, visibleInsets, touchableRegion); 1780 } catch (RemoteException e) { 1781 } 1782 } 1783 } 1784 1785 boolean skipDraw = false; 1786 1787 if (mFirst) { 1788 // handle first focus request 1789 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1790 + mView.hasFocus()); 1791 if (mView != null) { 1792 if (!mView.hasFocus()) { 1793 mView.requestFocus(View.FOCUS_FORWARD); 1794 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1795 + mView.findFocus()); 1796 } else { 1797 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1798 + mView.findFocus()); 1799 } 1800 } 1801 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_ANIMATING) != 0) { 1802 // The first time we relayout the window, if the system is 1803 // doing window animations, we want to hold of on any future 1804 // draws until the animation is done. 1805 mWindowsAnimating = true; 1806 } 1807 } else if (mWindowsAnimating) { 1808 skipDraw = true; 1809 } 1810 1811 mFirst = false; 1812 mWillDrawSoon = false; 1813 mNewSurfaceNeeded = false; 1814 mViewVisibility = viewVisibility; 1815 1816 if (mAttachInfo.mHasWindowFocus) { 1817 final boolean imTarget = WindowManager.LayoutParams 1818 .mayUseInputMethod(mWindowAttributes.flags); 1819 if (imTarget != mLastWasImTarget) { 1820 mLastWasImTarget = imTarget; 1821 InputMethodManager imm = InputMethodManager.peekInstance(); 1822 if (imm != null && imTarget) { 1823 imm.startGettingWindowFocus(mView); 1824 imm.onWindowFocus(mView, mView.findFocus(), 1825 mWindowAttributes.softInputMode, 1826 !mHasHadWindowFocus, mWindowAttributes.flags); 1827 } 1828 } 1829 } 1830 1831 // Remember if we must report the next draw. 1832 if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 1833 mReportNextDraw = true; 1834 } 1835 1836 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1837 viewVisibility != View.VISIBLE; 1838 1839 if (!cancelDraw && !newSurface) { 1840 if (!skipDraw || mReportNextDraw) { 1841 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1842 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1843 mPendingTransitions.get(i).startChangingAnimations(); 1844 } 1845 mPendingTransitions.clear(); 1846 } 1847 1848 performDraw(); 1849 } 1850 } else { 1851 if (viewVisibility == View.VISIBLE) { 1852 // Try again 1853 scheduleTraversals(); 1854 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1855 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1856 mPendingTransitions.get(i).endChangingAnimations(); 1857 } 1858 mPendingTransitions.clear(); 1859 } 1860 } 1861 1862 mIsInTraversal = false; 1863 } 1864 1865 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1866 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1867 try { 1868 if (!mWindowSession.outOfMemory(mWindow) && 1869 Process.myUid() != Process.SYSTEM_UID) { 1870 Slog.w(TAG, "No processes killed for memory; killing self"); 1871 Process.killProcess(Process.myPid()); 1872 } 1873 } catch (RemoteException ex) { 1874 } 1875 mLayoutRequested = true; // ask wm for a new surface next time. 1876 } 1877 1878 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1879 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1880 try { 1881 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1882 } finally { 1883 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1884 } 1885 } 1886 1887 /** 1888 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1889 * is currently undergoing a layout pass. 1890 * 1891 * @return whether the view hierarchy is currently undergoing a layout pass 1892 */ 1893 boolean isInLayout() { 1894 return mInLayout; 1895 } 1896 1897 /** 1898 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1899 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1900 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1901 * all children in that container hierarchy are measured and laid out at the end of the layout 1902 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1903 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1904 * we check all of those views to see if any still have pending layout requests, which 1905 * indicates that they were not correctly handled by their container hierarchy. If that is 1906 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1907 * to blank containers, and force a second request/measure/layout pass in this frame. If 1908 * more requestLayout() calls are received during that second layout pass, we post those 1909 * requests to the next frame to avoid possible infinite loops. 1910 * 1911 * <p>The return value from this method indicates whether the request should proceed 1912 * (if it is a request during the first layout pass) or should be skipped and posted to the 1913 * next frame (if it is a request during the second layout pass).</p> 1914 * 1915 * @param view the view that requested the layout. 1916 * 1917 * @return true if request should proceed, false otherwise. 1918 */ 1919 boolean requestLayoutDuringLayout(final View view) { 1920 if (view.mParent == null || view.mAttachInfo == null) { 1921 // Would not normally trigger another layout, so just let it pass through as usual 1922 return true; 1923 } 1924 if (!mHandlingLayoutInLayoutRequest) { 1925 if (!mLayoutRequesters.contains(view)) { 1926 mLayoutRequesters.add(view); 1927 } 1928 return true; 1929 } else { 1930 Log.w("View", "requestLayout() called by " + view + " during second layout pass: " + 1931 "posting to next frame"); 1932 view.post(new Runnable() { 1933 @Override 1934 public void run() { 1935 view.requestLayout(); 1936 } 1937 }); 1938 return false; 1939 } 1940 } 1941 1942 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1943 int desiredWindowHeight) { 1944 mLayoutRequested = false; 1945 mScrollMayChange = true; 1946 mInLayout = true; 1947 1948 final View host = mView; 1949 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1950 Log.v(TAG, "Laying out " + host + " to (" + 1951 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1952 } 1953 1954 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1955 try { 1956 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1957 1958 mInLayout = false; 1959 int numViewsRequestingLayout = mLayoutRequesters.size(); 1960 if (numViewsRequestingLayout > 0) { 1961 // requestLayout() was called during layout. 1962 // If no layout-request flags are set on the requesting views, there is no problem. 1963 // If some requests are still pending, then we need to clear those flags and do 1964 // a full request/measure/layout pass to handle this situation. 1965 1966 // Check state of layout flags for all requesters 1967 ArrayList<View> mValidLayoutRequesters = null; 1968 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1969 View view = mLayoutRequesters.get(i); 1970 if ((view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == View.PFLAG_FORCE_LAYOUT) { 1971 while (view != null && view.mAttachInfo != null && view.mParent != null && 1972 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 1973 if ((view.mViewFlags & View.VISIBILITY_MASK) != View.GONE) { 1974 // Only trigger new requests for non-GONE views 1975 Log.w(TAG, "requestLayout() improperly called during " + 1976 "layout: running second layout pass for " + view); 1977 if (mValidLayoutRequesters == null) { 1978 mValidLayoutRequesters = new ArrayList<View>(); 1979 } 1980 mValidLayoutRequesters.add(view); 1981 break; 1982 } 1983 if (view.mParent instanceof View) { 1984 view = (View) view.mParent; 1985 } else { 1986 view = null; 1987 } 1988 } 1989 } 1990 } 1991 if (mValidLayoutRequesters != null) { 1992 // Clear flags throughout hierarchy, walking up from each flagged requester 1993 for (int i = 0; i < numViewsRequestingLayout; ++i) { 1994 View view = mLayoutRequesters.get(i); 1995 while (view != null && 1996 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 1997 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 1998 if (view.mParent instanceof View) { 1999 view = (View) view.mParent; 2000 } else { 2001 view = null; 2002 } 2003 } 2004 } 2005 // Process fresh layout requests, then measure and layout 2006 mHandlingLayoutInLayoutRequest = true; 2007 int numValidRequests = mValidLayoutRequesters.size(); 2008 for (int i = 0; i < numValidRequests; ++i) { 2009 mValidLayoutRequesters.get(i).requestLayout(); 2010 } 2011 measureHierarchy(host, lp, mView.getContext().getResources(), 2012 desiredWindowWidth, desiredWindowHeight); 2013 mInLayout = true; 2014 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2015 mHandlingLayoutInLayoutRequest = false; 2016 } 2017 mLayoutRequesters.clear(); 2018 } 2019 } finally { 2020 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2021 } 2022 mInLayout = false; 2023 } 2024 2025 public void requestTransparentRegion(View child) { 2026 // the test below should not fail unless someone is messing with us 2027 checkThread(); 2028 if (mView == child) { 2029 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2030 // Need to make sure we re-evaluate the window attributes next 2031 // time around, to ensure the window has the correct format. 2032 mWindowAttributesChanged = true; 2033 mWindowAttributesChangesFlag = 0; 2034 requestLayout(); 2035 } 2036 } 2037 2038 /** 2039 * Figures out the measure spec for the root view in a window based on it's 2040 * layout params. 2041 * 2042 * @param windowSize 2043 * The available width or height of the window 2044 * 2045 * @param rootDimension 2046 * The layout params for one dimension (width or height) of the 2047 * window. 2048 * 2049 * @return The measure spec to use to measure the root view. 2050 */ 2051 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2052 int measureSpec; 2053 switch (rootDimension) { 2054 2055 case ViewGroup.LayoutParams.MATCH_PARENT: 2056 // Window can't resize. Force root view to be windowSize. 2057 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2058 break; 2059 case ViewGroup.LayoutParams.WRAP_CONTENT: 2060 // Window can resize. Set max size for root view. 2061 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2062 break; 2063 default: 2064 // Window wants to be an exact size. Force root view to be that size. 2065 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2066 break; 2067 } 2068 return measureSpec; 2069 } 2070 2071 int mHardwareYOffset; 2072 int mResizeAlpha; 2073 final Paint mResizePaint = new Paint(); 2074 2075 public void onHardwarePreDraw(HardwareCanvas canvas) { 2076 canvas.translate(0, -mHardwareYOffset); 2077 } 2078 2079 public void onHardwarePostDraw(HardwareCanvas canvas) { 2080 if (mResizeBuffer != null) { 2081 mResizePaint.setAlpha(mResizeAlpha); 2082 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2083 } 2084 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2085 } 2086 2087 /** 2088 * @hide 2089 */ 2090 void outputDisplayList(View view) { 2091 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2092 DisplayList displayList = view.getDisplayList(); 2093 if (displayList != null) { 2094 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2095 } 2096 } 2097 } 2098 2099 /** 2100 * @see #PROPERTY_PROFILE_RENDERING 2101 */ 2102 private void profileRendering(boolean enabled) { 2103 if (mProfileRendering) { 2104 mRenderProfilingEnabled = enabled; 2105 if (mRenderProfiler == null) { 2106 mRenderProfiler = new Choreographer.FrameCallback() { 2107 @Override 2108 public void doFrame(long frameTimeNanos) { 2109 mDirty.set(0, 0, mWidth, mHeight); 2110 scheduleTraversals(); 2111 if (mRenderProfilingEnabled) { 2112 mChoreographer.postFrameCallback(mRenderProfiler); 2113 } 2114 } 2115 }; 2116 mChoreographer.postFrameCallback(mRenderProfiler); 2117 } else { 2118 mChoreographer.removeFrameCallback(mRenderProfiler); 2119 mRenderProfiler = null; 2120 } 2121 } 2122 } 2123 2124 /** 2125 * Called from draw() when DEBUG_FPS is enabled 2126 */ 2127 private void trackFPS() { 2128 // Tracks frames per second drawn. First value in a series of draws may be bogus 2129 // because it down not account for the intervening idle time 2130 long nowTime = System.currentTimeMillis(); 2131 if (mFpsStartTime < 0) { 2132 mFpsStartTime = mFpsPrevTime = nowTime; 2133 mFpsNumFrames = 0; 2134 } else { 2135 ++mFpsNumFrames; 2136 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2137 long frameTime = nowTime - mFpsPrevTime; 2138 long totalTime = nowTime - mFpsStartTime; 2139 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2140 mFpsPrevTime = nowTime; 2141 if (totalTime > 1000) { 2142 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2143 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2144 mFpsStartTime = nowTime; 2145 mFpsNumFrames = 0; 2146 } 2147 } 2148 } 2149 2150 private void performDraw() { 2151 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2152 return; 2153 } 2154 2155 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2156 mFullRedrawNeeded = false; 2157 2158 mIsDrawing = true; 2159 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2160 try { 2161 draw(fullRedrawNeeded); 2162 } finally { 2163 mIsDrawing = false; 2164 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2165 } 2166 2167 if (mReportNextDraw) { 2168 mReportNextDraw = false; 2169 2170 if (LOCAL_LOGV) { 2171 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2172 } 2173 if (mSurfaceHolder != null && mSurface.isValid()) { 2174 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2175 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2176 if (callbacks != null) { 2177 for (SurfaceHolder.Callback c : callbacks) { 2178 if (c instanceof SurfaceHolder.Callback2) { 2179 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2180 mSurfaceHolder); 2181 } 2182 } 2183 } 2184 } 2185 try { 2186 mWindowSession.finishDrawing(mWindow); 2187 } catch (RemoteException e) { 2188 } 2189 } 2190 } 2191 2192 private void draw(boolean fullRedrawNeeded) { 2193 Surface surface = mSurface; 2194 if (!surface.isValid()) { 2195 return; 2196 } 2197 2198 if (DEBUG_FPS) { 2199 trackFPS(); 2200 } 2201 2202 if (!sFirstDrawComplete) { 2203 synchronized (sFirstDrawHandlers) { 2204 sFirstDrawComplete = true; 2205 final int count = sFirstDrawHandlers.size(); 2206 for (int i = 0; i< count; i++) { 2207 mHandler.post(sFirstDrawHandlers.get(i)); 2208 } 2209 } 2210 } 2211 2212 scrollToRectOrFocus(null, false); 2213 2214 final AttachInfo attachInfo = mAttachInfo; 2215 if (attachInfo.mViewScrollChanged) { 2216 attachInfo.mViewScrollChanged = false; 2217 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2218 } 2219 2220 int yoff; 2221 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2222 if (animating) { 2223 yoff = mScroller.getCurrY(); 2224 } else { 2225 yoff = mScrollY; 2226 } 2227 if (mCurScrollY != yoff) { 2228 mCurScrollY = yoff; 2229 fullRedrawNeeded = true; 2230 } 2231 2232 final float appScale = attachInfo.mApplicationScale; 2233 final boolean scalingRequired = attachInfo.mScalingRequired; 2234 2235 int resizeAlpha = 0; 2236 if (mResizeBuffer != null) { 2237 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2238 if (deltaTime < mResizeBufferDuration) { 2239 float amt = deltaTime/(float) mResizeBufferDuration; 2240 amt = mResizeInterpolator.getInterpolation(amt); 2241 animating = true; 2242 resizeAlpha = 255 - (int)(amt*255); 2243 } else { 2244 disposeResizeBuffer(); 2245 } 2246 } 2247 2248 final Rect dirty = mDirty; 2249 if (mSurfaceHolder != null) { 2250 // The app owns the surface, we won't draw. 2251 dirty.setEmpty(); 2252 if (animating) { 2253 if (mScroller != null) { 2254 mScroller.abortAnimation(); 2255 } 2256 disposeResizeBuffer(); 2257 } 2258 return; 2259 } 2260 2261 if (fullRedrawNeeded) { 2262 attachInfo.mIgnoreDirtyState = true; 2263 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2264 } 2265 2266 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2267 Log.v(TAG, "Draw " + mView + "/" 2268 + mWindowAttributes.getTitle() 2269 + ": dirty={" + dirty.left + "," + dirty.top 2270 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2271 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2272 appScale + ", width=" + mWidth + ", height=" + mHeight); 2273 } 2274 2275 invalidateDisplayLists(); 2276 2277 attachInfo.mTreeObserver.dispatchOnDraw(); 2278 2279 if (!dirty.isEmpty() || mIsAnimating) { 2280 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2281 // Draw with hardware renderer. 2282 mIsAnimating = false; 2283 mHardwareYOffset = yoff; 2284 mResizeAlpha = resizeAlpha; 2285 2286 mCurrentDirty.set(dirty); 2287 mCurrentDirty.union(mPreviousDirty); 2288 mPreviousDirty.set(dirty); 2289 dirty.setEmpty(); 2290 2291 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2292 animating ? null : mCurrentDirty)) { 2293 mPreviousDirty.set(0, 0, mWidth, mHeight); 2294 } 2295 } else { 2296 // If we get here with a disabled & requested hardware renderer, something went 2297 // wrong (an invalidate posted right before we destroyed the hardware surface 2298 // for instance) so we should just bail out. Locking the surface with software 2299 // rendering at this point would lock it forever and prevent hardware renderer 2300 // from doing its job when it comes back. 2301 // Before we request a new frame we must however attempt to reinitiliaze the 2302 // hardware renderer if it's in requested state. This would happen after an 2303 // eglTerminate() for instance. 2304 if (attachInfo.mHardwareRenderer != null && 2305 !attachInfo.mHardwareRenderer.isEnabled() && 2306 attachInfo.mHardwareRenderer.isRequested()) { 2307 2308 try { 2309 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2310 mHolder.getSurface()); 2311 } catch (Surface.OutOfResourcesException e) { 2312 handleOutOfResourcesException(e); 2313 return; 2314 } 2315 2316 mFullRedrawNeeded = true; 2317 scheduleTraversals(); 2318 return; 2319 } 2320 2321 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2322 return; 2323 } 2324 } 2325 } 2326 2327 if (animating) { 2328 mFullRedrawNeeded = true; 2329 scheduleTraversals(); 2330 } 2331 } 2332 2333 /** 2334 * @return true if drawing was succesfull, false if an error occurred 2335 */ 2336 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2337 boolean scalingRequired, Rect dirty) { 2338 2339 // Draw with software renderer. 2340 Canvas canvas; 2341 try { 2342 int left = dirty.left; 2343 int top = dirty.top; 2344 int right = dirty.right; 2345 int bottom = dirty.bottom; 2346 2347 canvas = mSurface.lockCanvas(dirty); 2348 2349 if (left != dirty.left || top != dirty.top || right != dirty.right || 2350 bottom != dirty.bottom) { 2351 attachInfo.mIgnoreDirtyState = true; 2352 } 2353 2354 // TODO: Do this in native 2355 canvas.setDensity(mDensity); 2356 } catch (Surface.OutOfResourcesException e) { 2357 handleOutOfResourcesException(e); 2358 return false; 2359 } catch (IllegalArgumentException e) { 2360 Log.e(TAG, "Could not lock surface", e); 2361 // Don't assume this is due to out of memory, it could be 2362 // something else, and if it is something else then we could 2363 // kill stuff (or ourself) for no reason. 2364 mLayoutRequested = true; // ask wm for a new surface next time. 2365 return false; 2366 } 2367 2368 try { 2369 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2370 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2371 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2372 //canvas.drawARGB(255, 255, 0, 0); 2373 } 2374 2375 // If this bitmap's format includes an alpha channel, we 2376 // need to clear it before drawing so that the child will 2377 // properly re-composite its drawing on a transparent 2378 // background. This automatically respects the clip/dirty region 2379 // or 2380 // If we are applying an offset, we need to clear the area 2381 // where the offset doesn't appear to avoid having garbage 2382 // left in the blank areas. 2383 if (!canvas.isOpaque() || yoff != 0) { 2384 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2385 } 2386 2387 dirty.setEmpty(); 2388 mIsAnimating = false; 2389 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2390 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2391 2392 if (DEBUG_DRAW) { 2393 Context cxt = mView.getContext(); 2394 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2395 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2396 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2397 } 2398 try { 2399 canvas.translate(0, -yoff); 2400 if (mTranslator != null) { 2401 mTranslator.translateCanvas(canvas); 2402 } 2403 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2404 attachInfo.mSetIgnoreDirtyState = false; 2405 2406 mView.draw(canvas); 2407 2408 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2409 } finally { 2410 if (!attachInfo.mSetIgnoreDirtyState) { 2411 // Only clear the flag if it was not set during the mView.draw() call 2412 attachInfo.mIgnoreDirtyState = false; 2413 } 2414 } 2415 } finally { 2416 try { 2417 surface.unlockCanvasAndPost(canvas); 2418 } catch (IllegalArgumentException e) { 2419 Log.e(TAG, "Could not unlock surface", e); 2420 mLayoutRequested = true; // ask wm for a new surface next time. 2421 //noinspection ReturnInsideFinallyBlock 2422 return false; 2423 } 2424 2425 if (LOCAL_LOGV) { 2426 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2427 } 2428 } 2429 return true; 2430 } 2431 2432 /** 2433 * We want to draw a highlight around the current accessibility focused. 2434 * Since adding a style for all possible view is not a viable option we 2435 * have this specialized drawing method. 2436 * 2437 * Note: We are doing this here to be able to draw the highlight for 2438 * virtual views in addition to real ones. 2439 * 2440 * @param canvas The canvas on which to draw. 2441 */ 2442 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2443 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2444 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2445 return; 2446 } 2447 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2448 return; 2449 } 2450 Drawable drawable = getAccessibilityFocusedDrawable(); 2451 if (drawable == null) { 2452 return; 2453 } 2454 AccessibilityNodeProvider provider = 2455 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2456 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2457 if (provider == null) { 2458 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2459 } else { 2460 if (mAccessibilityFocusedVirtualView == null) { 2461 return; 2462 } 2463 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2464 } 2465 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2466 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2467 drawable.setBounds(bounds); 2468 drawable.draw(canvas); 2469 } 2470 2471 private Drawable getAccessibilityFocusedDrawable() { 2472 if (mAttachInfo != null) { 2473 // Lazily load the accessibility focus drawable. 2474 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2475 TypedValue value = new TypedValue(); 2476 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2477 R.attr.accessibilityFocusedDrawable, value, true); 2478 if (resolved) { 2479 mAttachInfo.mAccessibilityFocusDrawable = 2480 mView.mContext.getResources().getDrawable(value.resourceId); 2481 } 2482 } 2483 return mAttachInfo.mAccessibilityFocusDrawable; 2484 } 2485 return null; 2486 } 2487 2488 void invalidateDisplayLists() { 2489 final ArrayList<DisplayList> displayLists = mDisplayLists; 2490 final int count = displayLists.size(); 2491 2492 for (int i = 0; i < count; i++) { 2493 final DisplayList displayList = displayLists.get(i); 2494 if (displayList.isDirty()) { 2495 displayList.invalidate(); 2496 displayList.clear(); 2497 displayList.setDirty(false); 2498 } 2499 } 2500 2501 displayLists.clear(); 2502 } 2503 2504 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2505 final View.AttachInfo attachInfo = mAttachInfo; 2506 final Rect ci = attachInfo.mContentInsets; 2507 final Rect vi = attachInfo.mVisibleInsets; 2508 int scrollY = 0; 2509 boolean handled = false; 2510 2511 if (vi.left > ci.left || vi.top > ci.top 2512 || vi.right > ci.right || vi.bottom > ci.bottom) { 2513 // We'll assume that we aren't going to change the scroll 2514 // offset, since we want to avoid that unless it is actually 2515 // going to make the focus visible... otherwise we scroll 2516 // all over the place. 2517 scrollY = mScrollY; 2518 // We can be called for two different situations: during a draw, 2519 // to update the scroll position if the focus has changed (in which 2520 // case 'rectangle' is null), or in response to a 2521 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2522 // is non-null and we just want to scroll to whatever that 2523 // rectangle is). 2524 View focus = mView.findFocus(); 2525 if (focus == null) { 2526 return false; 2527 } 2528 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2529 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2530 // If the focus has changed, then ignore any requests to scroll 2531 // to a rectangle; first we want to make sure the entire focus 2532 // view is visible. 2533 rectangle = null; 2534 } 2535 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2536 + " rectangle=" + rectangle + " ci=" + ci 2537 + " vi=" + vi); 2538 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2539 // Optimization: if the focus hasn't changed since last 2540 // time, and no layout has happened, then just leave things 2541 // as they are. 2542 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2543 + mScrollY + " vi=" + vi.toShortString()); 2544 } else if (focus != null) { 2545 // We need to determine if the currently focused view is 2546 // within the visible part of the window and, if not, apply 2547 // a pan so it can be seen. 2548 mLastScrolledFocus = new WeakReference<View>(focus); 2549 mScrollMayChange = false; 2550 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2551 // Try to find the rectangle from the focus view. 2552 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2553 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2554 + mView.getWidth() + " h=" + mView.getHeight() 2555 + " ci=" + ci.toShortString() 2556 + " vi=" + vi.toShortString()); 2557 if (rectangle == null) { 2558 focus.getFocusedRect(mTempRect); 2559 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2560 + ": focusRect=" + mTempRect.toShortString()); 2561 if (mView instanceof ViewGroup) { 2562 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2563 focus, mTempRect); 2564 } 2565 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2566 "Focus in window: focusRect=" 2567 + mTempRect.toShortString() 2568 + " visRect=" + mVisRect.toShortString()); 2569 } else { 2570 mTempRect.set(rectangle); 2571 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2572 "Request scroll to rect: " 2573 + mTempRect.toShortString() 2574 + " visRect=" + mVisRect.toShortString()); 2575 } 2576 if (mTempRect.intersect(mVisRect)) { 2577 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2578 "Focus window visible rect: " 2579 + mTempRect.toShortString()); 2580 if (mTempRect.height() > 2581 (mView.getHeight()-vi.top-vi.bottom)) { 2582 // If the focus simply is not going to fit, then 2583 // best is probably just to leave things as-is. 2584 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2585 "Too tall; leaving scrollY=" + scrollY); 2586 } else if ((mTempRect.top-scrollY) < vi.top) { 2587 scrollY -= vi.top - (mTempRect.top-scrollY); 2588 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2589 "Top covered; scrollY=" + scrollY); 2590 } else if ((mTempRect.bottom-scrollY) 2591 > (mView.getHeight()-vi.bottom)) { 2592 scrollY += (mTempRect.bottom-scrollY) 2593 - (mView.getHeight()-vi.bottom); 2594 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2595 "Bottom covered; scrollY=" + scrollY); 2596 } 2597 handled = true; 2598 } 2599 } 2600 } 2601 } 2602 2603 if (scrollY != mScrollY) { 2604 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2605 + mScrollY + " , new=" + scrollY); 2606 if (!immediate && mResizeBuffer == null) { 2607 if (mScroller == null) { 2608 mScroller = new Scroller(mView.getContext()); 2609 } 2610 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2611 } else if (mScroller != null) { 2612 mScroller.abortAnimation(); 2613 } 2614 mScrollY = scrollY; 2615 } 2616 2617 return handled; 2618 } 2619 2620 /** 2621 * @hide 2622 */ 2623 public View getAccessibilityFocusedHost() { 2624 return mAccessibilityFocusedHost; 2625 } 2626 2627 /** 2628 * @hide 2629 */ 2630 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2631 return mAccessibilityFocusedVirtualView; 2632 } 2633 2634 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2635 // If we have a virtual view with accessibility focus we need 2636 // to clear the focus and invalidate the virtual view bounds. 2637 if (mAccessibilityFocusedVirtualView != null) { 2638 2639 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2640 View focusHost = mAccessibilityFocusedHost; 2641 focusHost.clearAccessibilityFocusNoCallbacks(); 2642 2643 // Wipe the state of the current accessibility focus since 2644 // the call into the provider to clear accessibility focus 2645 // will fire an accessibility event which will end up calling 2646 // this method and we want to have clean state when this 2647 // invocation happens. 2648 mAccessibilityFocusedHost = null; 2649 mAccessibilityFocusedVirtualView = null; 2650 2651 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2652 if (provider != null) { 2653 // Invalidate the area of the cleared accessibility focus. 2654 focusNode.getBoundsInParent(mTempRect); 2655 focusHost.invalidate(mTempRect); 2656 // Clear accessibility focus in the virtual node. 2657 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2658 focusNode.getSourceNodeId()); 2659 provider.performAction(virtualNodeId, 2660 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2661 } 2662 focusNode.recycle(); 2663 } 2664 if (mAccessibilityFocusedHost != null) { 2665 // Clear accessibility focus in the view. 2666 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2667 } 2668 2669 // Set the new focus host and node. 2670 mAccessibilityFocusedHost = view; 2671 mAccessibilityFocusedVirtualView = node; 2672 } 2673 2674 public void requestChildFocus(View child, View focused) { 2675 if (DEBUG_INPUT_RESIZE) { 2676 Log.v(TAG, "Request child focus: focus now " + focused); 2677 } 2678 checkThread(); 2679 scheduleTraversals(); 2680 } 2681 2682 public void clearChildFocus(View child) { 2683 if (DEBUG_INPUT_RESIZE) { 2684 Log.v(TAG, "Clearing child focus"); 2685 } 2686 checkThread(); 2687 scheduleTraversals(); 2688 } 2689 2690 @Override 2691 public ViewParent getParentForAccessibility() { 2692 return null; 2693 } 2694 2695 public void focusableViewAvailable(View v) { 2696 checkThread(); 2697 if (mView != null) { 2698 if (!mView.hasFocus()) { 2699 v.requestFocus(); 2700 } else { 2701 // the one case where will transfer focus away from the current one 2702 // is if the current view is a view group that prefers to give focus 2703 // to its children first AND the view is a descendant of it. 2704 View focused = mView.findFocus(); 2705 if (focused instanceof ViewGroup) { 2706 ViewGroup group = (ViewGroup) focused; 2707 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2708 && isViewDescendantOf(v, focused)) { 2709 v.requestFocus(); 2710 } 2711 } 2712 } 2713 } 2714 } 2715 2716 public void recomputeViewAttributes(View child) { 2717 checkThread(); 2718 if (mView == child) { 2719 mAttachInfo.mRecomputeGlobalAttributes = true; 2720 if (!mWillDrawSoon) { 2721 scheduleTraversals(); 2722 } 2723 } 2724 } 2725 2726 void dispatchDetachedFromWindow() { 2727 if (mView != null && mView.mAttachInfo != null) { 2728 if (mAttachInfo.mHardwareRenderer != null && 2729 mAttachInfo.mHardwareRenderer.isEnabled()) { 2730 mAttachInfo.mHardwareRenderer.validate(); 2731 } 2732 mView.dispatchDetachedFromWindow(); 2733 } 2734 2735 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2736 mAccessibilityManager.removeAccessibilityStateChangeListener( 2737 mAccessibilityInteractionConnectionManager); 2738 removeSendWindowContentChangedCallback(); 2739 2740 destroyHardwareRenderer(); 2741 2742 setAccessibilityFocus(null, null); 2743 2744 mView = null; 2745 mAttachInfo.mRootView = null; 2746 mAttachInfo.mSurface = null; 2747 2748 mSurface.release(); 2749 2750 if (mInputQueueCallback != null && mInputQueue != null) { 2751 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2752 mInputQueueCallback = null; 2753 mInputQueue = null; 2754 } else if (mInputEventReceiver != null) { 2755 mInputEventReceiver.dispose(); 2756 mInputEventReceiver = null; 2757 } 2758 try { 2759 mWindowSession.remove(mWindow); 2760 } catch (RemoteException e) { 2761 } 2762 2763 // Dispose the input channel after removing the window so the Window Manager 2764 // doesn't interpret the input channel being closed as an abnormal termination. 2765 if (mInputChannel != null) { 2766 mInputChannel.dispose(); 2767 mInputChannel = null; 2768 } 2769 2770 unscheduleTraversals(); 2771 } 2772 2773 void updateConfiguration(Configuration config, boolean force) { 2774 if (DEBUG_CONFIGURATION) Log.v(TAG, 2775 "Applying new config to window " 2776 + mWindowAttributes.getTitle() 2777 + ": " + config); 2778 2779 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2780 if (ci != null) { 2781 config = new Configuration(config); 2782 ci.applyToConfiguration(mNoncompatDensity, config); 2783 } 2784 2785 synchronized (sConfigCallbacks) { 2786 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2787 sConfigCallbacks.get(i).onConfigurationChanged(config); 2788 } 2789 } 2790 if (mView != null) { 2791 // At this point the resources have been updated to 2792 // have the most recent config, whatever that is. Use 2793 // the one in them which may be newer. 2794 config = mView.getResources().getConfiguration(); 2795 if (force || mLastConfiguration.diff(config) != 0) { 2796 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2797 final int currentLayoutDirection = config.getLayoutDirection(); 2798 mLastConfiguration.setTo(config); 2799 if (lastLayoutDirection != currentLayoutDirection && 2800 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2801 mView.setLayoutDirection(currentLayoutDirection); 2802 } 2803 mView.dispatchConfigurationChanged(config); 2804 } 2805 } 2806 } 2807 2808 /** 2809 * Return true if child is an ancestor of parent, (or equal to the parent). 2810 */ 2811 public static boolean isViewDescendantOf(View child, View parent) { 2812 if (child == parent) { 2813 return true; 2814 } 2815 2816 final ViewParent theParent = child.getParent(); 2817 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2818 } 2819 2820 private static void forceLayout(View view) { 2821 view.forceLayout(); 2822 if (view instanceof ViewGroup) { 2823 ViewGroup group = (ViewGroup) view; 2824 final int count = group.getChildCount(); 2825 for (int i = 0; i < count; i++) { 2826 forceLayout(group.getChildAt(i)); 2827 } 2828 } 2829 } 2830 2831 private final static int MSG_INVALIDATE = 1; 2832 private final static int MSG_INVALIDATE_RECT = 2; 2833 private final static int MSG_DIE = 3; 2834 private final static int MSG_RESIZED = 4; 2835 private final static int MSG_RESIZED_REPORT = 5; 2836 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2837 private final static int MSG_DISPATCH_KEY = 7; 2838 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2839 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2840 private final static int MSG_IME_FINISHED_EVENT = 10; 2841 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2842 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2843 private final static int MSG_CHECK_FOCUS = 13; 2844 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2845 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2846 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2847 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2848 private final static int MSG_UPDATE_CONFIGURATION = 18; 2849 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2850 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2851 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2852 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2853 private final static int MSG_INVALIDATE_WORLD = 23; 2854 private final static int MSG_WINDOW_MOVED = 24; 2855 2856 final class ViewRootHandler extends Handler { 2857 @Override 2858 public String getMessageName(Message message) { 2859 switch (message.what) { 2860 case MSG_INVALIDATE: 2861 return "MSG_INVALIDATE"; 2862 case MSG_INVALIDATE_RECT: 2863 return "MSG_INVALIDATE_RECT"; 2864 case MSG_DIE: 2865 return "MSG_DIE"; 2866 case MSG_RESIZED: 2867 return "MSG_RESIZED"; 2868 case MSG_RESIZED_REPORT: 2869 return "MSG_RESIZED_REPORT"; 2870 case MSG_WINDOW_FOCUS_CHANGED: 2871 return "MSG_WINDOW_FOCUS_CHANGED"; 2872 case MSG_DISPATCH_KEY: 2873 return "MSG_DISPATCH_KEY"; 2874 case MSG_DISPATCH_APP_VISIBILITY: 2875 return "MSG_DISPATCH_APP_VISIBILITY"; 2876 case MSG_DISPATCH_GET_NEW_SURFACE: 2877 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2878 case MSG_IME_FINISHED_EVENT: 2879 return "MSG_IME_FINISHED_EVENT"; 2880 case MSG_DISPATCH_KEY_FROM_IME: 2881 return "MSG_DISPATCH_KEY_FROM_IME"; 2882 case MSG_FINISH_INPUT_CONNECTION: 2883 return "MSG_FINISH_INPUT_CONNECTION"; 2884 case MSG_CHECK_FOCUS: 2885 return "MSG_CHECK_FOCUS"; 2886 case MSG_CLOSE_SYSTEM_DIALOGS: 2887 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2888 case MSG_DISPATCH_DRAG_EVENT: 2889 return "MSG_DISPATCH_DRAG_EVENT"; 2890 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2891 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2892 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2893 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2894 case MSG_UPDATE_CONFIGURATION: 2895 return "MSG_UPDATE_CONFIGURATION"; 2896 case MSG_PROCESS_INPUT_EVENTS: 2897 return "MSG_PROCESS_INPUT_EVENTS"; 2898 case MSG_DISPATCH_SCREEN_STATE: 2899 return "MSG_DISPATCH_SCREEN_STATE"; 2900 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2901 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2902 case MSG_DISPATCH_DONE_ANIMATING: 2903 return "MSG_DISPATCH_DONE_ANIMATING"; 2904 case MSG_WINDOW_MOVED: 2905 return "MSG_WINDOW_MOVED"; 2906 } 2907 return super.getMessageName(message); 2908 } 2909 2910 @Override 2911 public void handleMessage(Message msg) { 2912 switch (msg.what) { 2913 case MSG_INVALIDATE: 2914 ((View) msg.obj).invalidate(); 2915 break; 2916 case MSG_INVALIDATE_RECT: 2917 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2918 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2919 info.recycle(); 2920 break; 2921 case MSG_IME_FINISHED_EVENT: 2922 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2923 break; 2924 case MSG_PROCESS_INPUT_EVENTS: 2925 mProcessInputEventsScheduled = false; 2926 doProcessInputEvents(); 2927 break; 2928 case MSG_DISPATCH_APP_VISIBILITY: 2929 handleAppVisibility(msg.arg1 != 0); 2930 break; 2931 case MSG_DISPATCH_GET_NEW_SURFACE: 2932 handleGetNewSurface(); 2933 break; 2934 case MSG_RESIZED: { 2935 // Recycled in the fall through... 2936 SomeArgs args = (SomeArgs) msg.obj; 2937 if (mWinFrame.equals(args.arg1) 2938 && mPendingContentInsets.equals(args.arg2) 2939 && mPendingVisibleInsets.equals(args.arg3) 2940 && args.arg4 == null) { 2941 break; 2942 } 2943 } // fall through... 2944 case MSG_RESIZED_REPORT: 2945 if (mAdded) { 2946 SomeArgs args = (SomeArgs) msg.obj; 2947 2948 Configuration config = (Configuration) args.arg4; 2949 if (config != null) { 2950 updateConfiguration(config, false); 2951 } 2952 2953 mWinFrame.set((Rect) args.arg1); 2954 mPendingContentInsets.set((Rect) args.arg2); 2955 mPendingVisibleInsets.set((Rect) args.arg3); 2956 2957 args.recycle(); 2958 2959 if (msg.what == MSG_RESIZED_REPORT) { 2960 mReportNextDraw = true; 2961 } 2962 2963 if (mView != null) { 2964 forceLayout(mView); 2965 } 2966 2967 requestLayout(); 2968 } 2969 break; 2970 case MSG_WINDOW_MOVED: 2971 if (mAdded) { 2972 final int w = mWinFrame.width(); 2973 final int h = mWinFrame.height(); 2974 final int l = msg.arg1; 2975 final int t = msg.arg2; 2976 mWinFrame.left = l; 2977 mWinFrame.right = l + w; 2978 mWinFrame.top = t; 2979 mWinFrame.bottom = t + h; 2980 2981 if (mView != null) { 2982 forceLayout(mView); 2983 } 2984 requestLayout(); 2985 } 2986 break; 2987 case MSG_WINDOW_FOCUS_CHANGED: { 2988 if (mAdded) { 2989 boolean hasWindowFocus = msg.arg1 != 0; 2990 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2991 2992 profileRendering(hasWindowFocus); 2993 2994 if (hasWindowFocus) { 2995 boolean inTouchMode = msg.arg2 != 0; 2996 ensureTouchModeLocally(inTouchMode); 2997 2998 if (mAttachInfo.mHardwareRenderer != null && 2999 mSurface != null && mSurface.isValid()) { 3000 mFullRedrawNeeded = true; 3001 try { 3002 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3003 mWidth, mHeight, mHolder.getSurface()); 3004 } catch (Surface.OutOfResourcesException e) { 3005 Log.e(TAG, "OutOfResourcesException locking surface", e); 3006 try { 3007 if (!mWindowSession.outOfMemory(mWindow)) { 3008 Slog.w(TAG, "No processes killed for memory; killing self"); 3009 Process.killProcess(Process.myPid()); 3010 } 3011 } catch (RemoteException ex) { 3012 } 3013 // Retry in a bit. 3014 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3015 return; 3016 } 3017 } 3018 } 3019 3020 mLastWasImTarget = WindowManager.LayoutParams 3021 .mayUseInputMethod(mWindowAttributes.flags); 3022 3023 InputMethodManager imm = InputMethodManager.peekInstance(); 3024 if (mView != null) { 3025 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3026 imm.startGettingWindowFocus(mView); 3027 } 3028 mAttachInfo.mKeyDispatchState.reset(); 3029 mView.dispatchWindowFocusChanged(hasWindowFocus); 3030 } 3031 3032 // Note: must be done after the focus change callbacks, 3033 // so all of the view state is set up correctly. 3034 if (hasWindowFocus) { 3035 if (imm != null && mLastWasImTarget) { 3036 imm.onWindowFocus(mView, mView.findFocus(), 3037 mWindowAttributes.softInputMode, 3038 !mHasHadWindowFocus, mWindowAttributes.flags); 3039 } 3040 // Clear the forward bit. We can just do this directly, since 3041 // the window manager doesn't care about it. 3042 mWindowAttributes.softInputMode &= 3043 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3044 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3045 .softInputMode &= 3046 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3047 mHasHadWindowFocus = true; 3048 } 3049 3050 setAccessibilityFocus(null, null); 3051 3052 if (mView != null && mAccessibilityManager.isEnabled()) { 3053 if (hasWindowFocus) { 3054 mView.sendAccessibilityEvent( 3055 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3056 } 3057 } 3058 } 3059 } break; 3060 case MSG_DIE: 3061 doDie(); 3062 break; 3063 case MSG_DISPATCH_KEY: { 3064 KeyEvent event = (KeyEvent)msg.obj; 3065 enqueueInputEvent(event, null, 0, true); 3066 } break; 3067 case MSG_DISPATCH_KEY_FROM_IME: { 3068 if (LOCAL_LOGV) Log.v( 3069 TAG, "Dispatching key " 3070 + msg.obj + " from IME to " + mView); 3071 KeyEvent event = (KeyEvent)msg.obj; 3072 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3073 // The IME is trying to say this event is from the 3074 // system! Bad bad bad! 3075 //noinspection UnusedAssignment 3076 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3077 } 3078 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3079 } break; 3080 case MSG_FINISH_INPUT_CONNECTION: { 3081 InputMethodManager imm = InputMethodManager.peekInstance(); 3082 if (imm != null) { 3083 imm.reportFinishInputConnection((InputConnection)msg.obj); 3084 } 3085 } break; 3086 case MSG_CHECK_FOCUS: { 3087 InputMethodManager imm = InputMethodManager.peekInstance(); 3088 if (imm != null) { 3089 imm.checkFocus(); 3090 } 3091 } break; 3092 case MSG_CLOSE_SYSTEM_DIALOGS: { 3093 if (mView != null) { 3094 mView.onCloseSystemDialogs((String)msg.obj); 3095 } 3096 } break; 3097 case MSG_DISPATCH_DRAG_EVENT: 3098 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3099 DragEvent event = (DragEvent)msg.obj; 3100 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3101 handleDragEvent(event); 3102 } break; 3103 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3104 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3105 } break; 3106 case MSG_UPDATE_CONFIGURATION: { 3107 Configuration config = (Configuration)msg.obj; 3108 if (config.isOtherSeqNewer(mLastConfiguration)) { 3109 config = mLastConfiguration; 3110 } 3111 updateConfiguration(config, false); 3112 } break; 3113 case MSG_DISPATCH_SCREEN_STATE: { 3114 if (mView != null) { 3115 handleScreenStateChange(msg.arg1 == 1); 3116 } 3117 } break; 3118 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3119 setAccessibilityFocus(null, null); 3120 } break; 3121 case MSG_DISPATCH_DONE_ANIMATING: { 3122 handleDispatchDoneAnimating(); 3123 } break; 3124 case MSG_INVALIDATE_WORLD: { 3125 if (mView != null) { 3126 invalidateWorld(mView); 3127 } 3128 } break; 3129 } 3130 } 3131 } 3132 3133 final ViewRootHandler mHandler = new ViewRootHandler(); 3134 3135 /** 3136 * Something in the current window tells us we need to change the touch mode. For 3137 * example, we are not in touch mode, and the user touches the screen. 3138 * 3139 * If the touch mode has changed, tell the window manager, and handle it locally. 3140 * 3141 * @param inTouchMode Whether we want to be in touch mode. 3142 * @return True if the touch mode changed and focus changed was changed as a result 3143 */ 3144 boolean ensureTouchMode(boolean inTouchMode) { 3145 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3146 + "touch mode is " + mAttachInfo.mInTouchMode); 3147 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3148 3149 // tell the window manager 3150 try { 3151 mWindowSession.setInTouchMode(inTouchMode); 3152 } catch (RemoteException e) { 3153 throw new RuntimeException(e); 3154 } 3155 3156 // handle the change 3157 return ensureTouchModeLocally(inTouchMode); 3158 } 3159 3160 /** 3161 * Ensure that the touch mode for this window is set, and if it is changing, 3162 * take the appropriate action. 3163 * @param inTouchMode Whether we want to be in touch mode. 3164 * @return True if the touch mode changed and focus changed was changed as a result 3165 */ 3166 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3167 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3168 + "touch mode is " + mAttachInfo.mInTouchMode); 3169 3170 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3171 3172 mAttachInfo.mInTouchMode = inTouchMode; 3173 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3174 3175 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3176 } 3177 3178 private boolean enterTouchMode() { 3179 if (mView != null) { 3180 if (mView.hasFocus()) { 3181 // note: not relying on mFocusedView here because this could 3182 // be when the window is first being added, and mFocused isn't 3183 // set yet. 3184 final View focused = mView.findFocus(); 3185 if (focused != null && !focused.isFocusableInTouchMode()) { 3186 final ViewGroup ancestorToTakeFocus = 3187 findAncestorToTakeFocusInTouchMode(focused); 3188 if (ancestorToTakeFocus != null) { 3189 // there is an ancestor that wants focus after its descendants that 3190 // is focusable in touch mode.. give it focus 3191 return ancestorToTakeFocus.requestFocus(); 3192 } else { 3193 // nothing appropriate to have focus in touch mode, clear it out 3194 focused.unFocus(); 3195 return true; 3196 } 3197 } 3198 } 3199 } 3200 return false; 3201 } 3202 3203 /** 3204 * Find an ancestor of focused that wants focus after its descendants and is 3205 * focusable in touch mode. 3206 * @param focused The currently focused view. 3207 * @return An appropriate view, or null if no such view exists. 3208 */ 3209 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3210 ViewParent parent = focused.getParent(); 3211 while (parent instanceof ViewGroup) { 3212 final ViewGroup vgParent = (ViewGroup) parent; 3213 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3214 && vgParent.isFocusableInTouchMode()) { 3215 return vgParent; 3216 } 3217 if (vgParent.isRootNamespace()) { 3218 return null; 3219 } else { 3220 parent = vgParent.getParent(); 3221 } 3222 } 3223 return null; 3224 } 3225 3226 private boolean leaveTouchMode() { 3227 if (mView != null) { 3228 if (mView.hasFocus()) { 3229 View focusedView = mView.findFocus(); 3230 if (!(focusedView instanceof ViewGroup)) { 3231 // some view has focus, let it keep it 3232 return false; 3233 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3234 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3235 // some view group has focus, and doesn't prefer its children 3236 // over itself for focus, so let them keep it. 3237 return false; 3238 } 3239 } 3240 3241 // find the best view to give focus to in this brave new non-touch-mode 3242 // world 3243 final View focused = focusSearch(null, View.FOCUS_DOWN); 3244 if (focused != null) { 3245 return focused.requestFocus(View.FOCUS_DOWN); 3246 } 3247 } 3248 return false; 3249 } 3250 3251 private int deliverInputEvent(QueuedInputEvent q) { 3252 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3253 try { 3254 if (q.mEvent instanceof KeyEvent) { 3255 return deliverKeyEvent(q); 3256 } else { 3257 final int source = q.mEvent.getSource(); 3258 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3259 return deliverPointerEvent(q); 3260 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3261 return deliverTrackballEvent(q); 3262 } else { 3263 return deliverGenericMotionEvent(q); 3264 } 3265 } 3266 } finally { 3267 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3268 } 3269 } 3270 3271 private int deliverInputEventPostIme(QueuedInputEvent q) { 3272 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3273 try { 3274 if (q.mEvent instanceof KeyEvent) { 3275 return deliverKeyEventPostIme(q); 3276 } else { 3277 final int source = q.mEvent.getSource(); 3278 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3279 return deliverTrackballEventPostIme(q); 3280 } else { 3281 return deliverGenericMotionEventPostIme(q); 3282 } 3283 } 3284 } finally { 3285 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3286 } 3287 } 3288 3289 private int deliverPointerEvent(QueuedInputEvent q) { 3290 final MotionEvent event = (MotionEvent)q.mEvent; 3291 final boolean isTouchEvent = event.isTouchEvent(); 3292 if (mInputEventConsistencyVerifier != null) { 3293 if (isTouchEvent) { 3294 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3295 } else { 3296 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3297 } 3298 } 3299 3300 // If there is no view, then the event will not be handled. 3301 if (mView == null || !mAdded) { 3302 return EVENT_NOT_HANDLED; 3303 } 3304 3305 // Translate the pointer event for compatibility, if needed. 3306 if (mTranslator != null) { 3307 mTranslator.translateEventInScreenToAppWindow(event); 3308 } 3309 3310 // Enter touch mode on down or scroll. 3311 final int action = event.getAction(); 3312 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3313 ensureTouchMode(true); 3314 } 3315 3316 // Offset the scroll position. 3317 if (mCurScrollY != 0) { 3318 event.offsetLocation(0, mCurScrollY); 3319 } 3320 if (MEASURE_LATENCY) { 3321 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3322 } 3323 3324 // Remember the touch position for possible drag-initiation. 3325 if (isTouchEvent) { 3326 mLastTouchPoint.x = event.getRawX(); 3327 mLastTouchPoint.y = event.getRawY(); 3328 } 3329 3330 // Dispatch touch to view hierarchy. 3331 boolean handled = mView.dispatchPointerEvent(event); 3332 if (MEASURE_LATENCY) { 3333 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3334 } 3335 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3336 } 3337 3338 private int deliverTrackballEvent(QueuedInputEvent q) { 3339 final MotionEvent event = (MotionEvent)q.mEvent; 3340 if (mInputEventConsistencyVerifier != null) { 3341 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3342 } 3343 3344 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3345 if (LOCAL_LOGV) 3346 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3347 3348 // Dispatch to the IME before propagating down the view hierarchy. 3349 // The IME will eventually call back into handleImeFinishedEvent. 3350 if (mLastWasImTarget) { 3351 InputMethodManager imm = InputMethodManager.peekInstance(); 3352 if (imm != null) { 3353 final int seq = event.getSequenceNumber(); 3354 if (DEBUG_IMF) 3355 Log.v(TAG, "Sending trackball event to IME: seq=" 3356 + seq + " event=" + event); 3357 int result = imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3358 mInputMethodCallback); 3359 if (result != EVENT_NOT_HANDLED) { 3360 return result; 3361 } 3362 } 3363 } 3364 } 3365 3366 // Not dispatching to IME, continue with post IME actions. 3367 return deliverTrackballEventPostIme(q); 3368 } 3369 3370 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3371 final MotionEvent event = (MotionEvent) q.mEvent; 3372 3373 // If there is no view, then the event will not be handled. 3374 if (mView == null || !mAdded) { 3375 return EVENT_NOT_HANDLED; 3376 } 3377 3378 // Deliver the trackball event to the view. 3379 if (mView.dispatchTrackballEvent(event)) { 3380 // If we reach this, we delivered a trackball event to mView and 3381 // mView consumed it. Because we will not translate the trackball 3382 // event into a key event, touch mode will not exit, so we exit 3383 // touch mode here. 3384 ensureTouchMode(false); 3385 mLastTrackballTime = Integer.MIN_VALUE; 3386 return EVENT_HANDLED; 3387 } 3388 3389 // Translate the trackball event into DPAD keys and try to deliver those. 3390 final TrackballAxis x = mTrackballAxisX; 3391 final TrackballAxis y = mTrackballAxisY; 3392 3393 long curTime = SystemClock.uptimeMillis(); 3394 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3395 // It has been too long since the last movement, 3396 // so restart at the beginning. 3397 x.reset(0); 3398 y.reset(0); 3399 mLastTrackballTime = curTime; 3400 } 3401 3402 final int action = event.getAction(); 3403 final int metaState = event.getMetaState(); 3404 switch (action) { 3405 case MotionEvent.ACTION_DOWN: 3406 x.reset(2); 3407 y.reset(2); 3408 enqueueInputEvent(new KeyEvent(curTime, curTime, 3409 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3410 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3411 InputDevice.SOURCE_KEYBOARD)); 3412 break; 3413 case MotionEvent.ACTION_UP: 3414 x.reset(2); 3415 y.reset(2); 3416 enqueueInputEvent(new KeyEvent(curTime, curTime, 3417 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3418 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3419 InputDevice.SOURCE_KEYBOARD)); 3420 break; 3421 } 3422 3423 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3424 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3425 + " move=" + event.getX() 3426 + " / Y=" + y.position + " step=" 3427 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3428 + " move=" + event.getY()); 3429 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3430 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3431 3432 // Generate DPAD events based on the trackball movement. 3433 // We pick the axis that has moved the most as the direction of 3434 // the DPAD. When we generate DPAD events for one axis, then the 3435 // other axis is reset -- we don't want to perform DPAD jumps due 3436 // to slight movements in the trackball when making major movements 3437 // along the other axis. 3438 int keycode = 0; 3439 int movement = 0; 3440 float accel = 1; 3441 if (xOff > yOff) { 3442 movement = x.generate((2/event.getXPrecision())); 3443 if (movement != 0) { 3444 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3445 : KeyEvent.KEYCODE_DPAD_LEFT; 3446 accel = x.acceleration; 3447 y.reset(2); 3448 } 3449 } else if (yOff > 0) { 3450 movement = y.generate((2/event.getYPrecision())); 3451 if (movement != 0) { 3452 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3453 : KeyEvent.KEYCODE_DPAD_UP; 3454 accel = y.acceleration; 3455 x.reset(2); 3456 } 3457 } 3458 3459 if (keycode != 0) { 3460 if (movement < 0) movement = -movement; 3461 int accelMovement = (int)(movement * accel); 3462 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3463 + " accelMovement=" + accelMovement 3464 + " accel=" + accel); 3465 if (accelMovement > movement) { 3466 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3467 + keycode); 3468 movement--; 3469 int repeatCount = accelMovement - movement; 3470 enqueueInputEvent(new KeyEvent(curTime, curTime, 3471 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3472 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3473 InputDevice.SOURCE_KEYBOARD)); 3474 } 3475 while (movement > 0) { 3476 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3477 + keycode); 3478 movement--; 3479 curTime = SystemClock.uptimeMillis(); 3480 enqueueInputEvent(new KeyEvent(curTime, curTime, 3481 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3482 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3483 InputDevice.SOURCE_KEYBOARD)); 3484 enqueueInputEvent(new KeyEvent(curTime, curTime, 3485 KeyEvent.ACTION_UP, keycode, 0, metaState, 3486 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3487 InputDevice.SOURCE_KEYBOARD)); 3488 } 3489 mLastTrackballTime = curTime; 3490 } 3491 3492 // Unfortunately we can't tell whether the application consumed the keys, so 3493 // we always consider the trackball event handled. 3494 return EVENT_HANDLED; 3495 } 3496 3497 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3498 final MotionEvent event = (MotionEvent)q.mEvent; 3499 if (mInputEventConsistencyVerifier != null) { 3500 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3501 } 3502 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3503 if (LOCAL_LOGV) 3504 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3505 3506 // Dispatch to the IME before propagating down the view hierarchy. 3507 // The IME will eventually call back into handleImeFinishedEvent. 3508 if (mLastWasImTarget) { 3509 InputMethodManager imm = InputMethodManager.peekInstance(); 3510 if (imm != null) { 3511 final int seq = event.getSequenceNumber(); 3512 if (DEBUG_IMF) 3513 Log.v(TAG, "Sending generic motion event to IME: seq=" 3514 + seq + " event=" + event); 3515 int result = imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3516 mInputMethodCallback); 3517 if (result != EVENT_NOT_HANDLED) { 3518 return result; 3519 } 3520 } 3521 } 3522 } 3523 3524 // Not dispatching to IME, continue with post IME actions. 3525 return deliverGenericMotionEventPostIme(q); 3526 } 3527 3528 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3529 final MotionEvent event = (MotionEvent) q.mEvent; 3530 final int source = event.getSource(); 3531 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3532 final boolean isTouchPad = (source & InputDevice.SOURCE_CLASS_POSITION) != 0; 3533 3534 // If there is no view, then the event will not be handled. 3535 if (mView == null || !mAdded) { 3536 if (isJoystick) { 3537 updateJoystickDirection(event, false); 3538 } else if (isTouchPad) { 3539 mSimulatedDpad.updateTouchPad(this, event, false); 3540 } 3541 return EVENT_NOT_HANDLED; 3542 } 3543 3544 // Deliver the event to the view. 3545 if (mView.dispatchGenericMotionEvent(event)) { 3546 if (isJoystick) { 3547 updateJoystickDirection(event, false); 3548 } else if (isTouchPad) { 3549 mSimulatedDpad.updateTouchPad(this, event, false); 3550 } 3551 return EVENT_HANDLED; 3552 } 3553 3554 if (isJoystick) { 3555 // Translate the joystick event into DPAD keys and try to deliver 3556 // those. 3557 updateJoystickDirection(event, true); 3558 return EVENT_HANDLED; 3559 } 3560 if (isTouchPad) { 3561 mSimulatedDpad.updateTouchPad(this, event, true); 3562 return EVENT_HANDLED; 3563 } 3564 return EVENT_NOT_HANDLED; 3565 } 3566 3567 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3568 final long time = event.getEventTime(); 3569 final int metaState = event.getMetaState(); 3570 final int deviceId = event.getDeviceId(); 3571 final int source = event.getSource(); 3572 3573 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3574 if (xDirection == 0) { 3575 xDirection = joystickAxisValueToDirection(event.getX()); 3576 } 3577 3578 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3579 if (yDirection == 0) { 3580 yDirection = joystickAxisValueToDirection(event.getY()); 3581 } 3582 3583 if (xDirection != mLastJoystickXDirection) { 3584 if (mLastJoystickXKeyCode != 0) { 3585 enqueueInputEvent(new KeyEvent(time, time, 3586 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3587 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3588 mLastJoystickXKeyCode = 0; 3589 } 3590 3591 mLastJoystickXDirection = xDirection; 3592 3593 if (xDirection != 0 && synthesizeNewKeys) { 3594 mLastJoystickXKeyCode = xDirection > 0 3595 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3596 enqueueInputEvent(new KeyEvent(time, time, 3597 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3598 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3599 } 3600 } 3601 3602 if (yDirection != mLastJoystickYDirection) { 3603 if (mLastJoystickYKeyCode != 0) { 3604 enqueueInputEvent(new KeyEvent(time, time, 3605 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3606 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3607 mLastJoystickYKeyCode = 0; 3608 } 3609 3610 mLastJoystickYDirection = yDirection; 3611 3612 if (yDirection != 0 && synthesizeNewKeys) { 3613 mLastJoystickYKeyCode = yDirection > 0 3614 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3615 enqueueInputEvent(new KeyEvent(time, time, 3616 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3617 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3618 } 3619 } 3620 } 3621 3622 private static int joystickAxisValueToDirection(float value) { 3623 if (value >= 0.5f) { 3624 return 1; 3625 } else if (value <= -0.5f) { 3626 return -1; 3627 } else { 3628 return 0; 3629 } 3630 } 3631 3632 /** 3633 * Returns true if the key is used for keyboard navigation. 3634 * @param keyEvent The key event. 3635 * @return True if the key is used for keyboard navigation. 3636 */ 3637 private static boolean isNavigationKey(KeyEvent keyEvent) { 3638 switch (keyEvent.getKeyCode()) { 3639 case KeyEvent.KEYCODE_DPAD_LEFT: 3640 case KeyEvent.KEYCODE_DPAD_RIGHT: 3641 case KeyEvent.KEYCODE_DPAD_UP: 3642 case KeyEvent.KEYCODE_DPAD_DOWN: 3643 case KeyEvent.KEYCODE_DPAD_CENTER: 3644 case KeyEvent.KEYCODE_PAGE_UP: 3645 case KeyEvent.KEYCODE_PAGE_DOWN: 3646 case KeyEvent.KEYCODE_MOVE_HOME: 3647 case KeyEvent.KEYCODE_MOVE_END: 3648 case KeyEvent.KEYCODE_TAB: 3649 case KeyEvent.KEYCODE_SPACE: 3650 case KeyEvent.KEYCODE_ENTER: 3651 return true; 3652 } 3653 return false; 3654 } 3655 3656 /** 3657 * Returns true if the key is used for typing. 3658 * @param keyEvent The key event. 3659 * @return True if the key is used for typing. 3660 */ 3661 private static boolean isTypingKey(KeyEvent keyEvent) { 3662 return keyEvent.getUnicodeChar() > 0; 3663 } 3664 3665 /** 3666 * See if the key event means we should leave touch mode (and leave touch mode if so). 3667 * @param event The key event. 3668 * @return Whether this key event should be consumed (meaning the act of 3669 * leaving touch mode alone is considered the event). 3670 */ 3671 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3672 // Only relevant in touch mode. 3673 if (!mAttachInfo.mInTouchMode) { 3674 return false; 3675 } 3676 3677 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3678 final int action = event.getAction(); 3679 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3680 return false; 3681 } 3682 3683 // Don't leave touch mode if the IME told us not to. 3684 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3685 return false; 3686 } 3687 3688 // If the key can be used for keyboard navigation then leave touch mode 3689 // and select a focused view if needed (in ensureTouchMode). 3690 // When a new focused view is selected, we consume the navigation key because 3691 // navigation doesn't make much sense unless a view already has focus so 3692 // the key's purpose is to set focus. 3693 if (isNavigationKey(event)) { 3694 return ensureTouchMode(false); 3695 } 3696 3697 // If the key can be used for typing then leave touch mode 3698 // and select a focused view if needed (in ensureTouchMode). 3699 // Always allow the view to process the typing key. 3700 if (isTypingKey(event)) { 3701 ensureTouchMode(false); 3702 return false; 3703 } 3704 3705 return false; 3706 } 3707 3708 private int deliverKeyEvent(QueuedInputEvent q) { 3709 final KeyEvent event = (KeyEvent)q.mEvent; 3710 if (mInputEventConsistencyVerifier != null) { 3711 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3712 } 3713 3714 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3715 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3716 3717 // Perform predispatching before the IME. 3718 if (mView.dispatchKeyEventPreIme(event)) { 3719 return EVENT_HANDLED; 3720 } 3721 3722 // Dispatch to the IME before propagating down the view hierarchy. 3723 // The IME will eventually call back into handleImeFinishedEvent. 3724 if (mLastWasImTarget) { 3725 InputMethodManager imm = InputMethodManager.peekInstance(); 3726 if (imm != null) { 3727 final int seq = event.getSequenceNumber(); 3728 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3729 + seq + " event=" + event); 3730 int result = imm.dispatchKeyEvent(mView.getContext(), seq, event, 3731 mInputMethodCallback); 3732 if (result != EVENT_NOT_HANDLED) { 3733 return result; 3734 } 3735 } 3736 } 3737 } 3738 3739 // Not dispatching to IME, continue with post IME actions. 3740 return deliverKeyEventPostIme(q); 3741 } 3742 3743 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3744 final KeyEvent event = (KeyEvent)q.mEvent; 3745 3746 // If the view went away, then the event will not be handled. 3747 if (mView == null || !mAdded) { 3748 return EVENT_NOT_HANDLED; 3749 } 3750 3751 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3752 if (checkForLeavingTouchModeAndConsume(event)) { 3753 return EVENT_HANDLED; 3754 } 3755 3756 // Make sure the fallback event policy sees all keys that will be delivered to the 3757 // view hierarchy. 3758 mFallbackEventHandler.preDispatchKeyEvent(event); 3759 3760 // Deliver the key to the view hierarchy. 3761 if (mView.dispatchKeyEvent(event)) { 3762 return EVENT_HANDLED; 3763 } 3764 3765 // If the Control modifier is held, try to interpret the key as a shortcut. 3766 if (event.getAction() == KeyEvent.ACTION_DOWN 3767 && event.isCtrlPressed() 3768 && event.getRepeatCount() == 0 3769 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3770 if (mView.dispatchKeyShortcutEvent(event)) { 3771 return EVENT_HANDLED; 3772 } 3773 } 3774 3775 // Apply the fallback event policy. 3776 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3777 return EVENT_HANDLED; 3778 } 3779 3780 // Handle automatic focus changes. 3781 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3782 int direction = 0; 3783 switch (event.getKeyCode()) { 3784 case KeyEvent.KEYCODE_DPAD_LEFT: 3785 if (event.hasNoModifiers()) { 3786 direction = View.FOCUS_LEFT; 3787 } 3788 break; 3789 case KeyEvent.KEYCODE_DPAD_RIGHT: 3790 if (event.hasNoModifiers()) { 3791 direction = View.FOCUS_RIGHT; 3792 } 3793 break; 3794 case KeyEvent.KEYCODE_DPAD_UP: 3795 if (event.hasNoModifiers()) { 3796 direction = View.FOCUS_UP; 3797 } 3798 break; 3799 case KeyEvent.KEYCODE_DPAD_DOWN: 3800 if (event.hasNoModifiers()) { 3801 direction = View.FOCUS_DOWN; 3802 } 3803 break; 3804 case KeyEvent.KEYCODE_TAB: 3805 if (event.hasNoModifiers()) { 3806 direction = View.FOCUS_FORWARD; 3807 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3808 direction = View.FOCUS_BACKWARD; 3809 } 3810 break; 3811 } 3812 if (direction != 0) { 3813 View focused = mView.findFocus(); 3814 if (focused != null) { 3815 View v = focused.focusSearch(direction); 3816 if (v != null && v != focused) { 3817 // do the math the get the interesting rect 3818 // of previous focused into the coord system of 3819 // newly focused view 3820 focused.getFocusedRect(mTempRect); 3821 if (mView instanceof ViewGroup) { 3822 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3823 focused, mTempRect); 3824 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3825 v, mTempRect); 3826 } 3827 if (v.requestFocus(direction, mTempRect)) { 3828 playSoundEffect(SoundEffectConstants 3829 .getContantForFocusDirection(direction)); 3830 return EVENT_HANDLED; 3831 } 3832 } 3833 3834 // Give the focused view a last chance to handle the dpad key. 3835 if (mView.dispatchUnhandledMove(focused, direction)) { 3836 return EVENT_HANDLED; 3837 } 3838 } 3839 } 3840 } 3841 3842 // Key was unhandled. 3843 return EVENT_NOT_HANDLED; 3844 } 3845 3846 /* drag/drop */ 3847 void setLocalDragState(Object obj) { 3848 mLocalDragState = obj; 3849 } 3850 3851 private void handleDragEvent(DragEvent event) { 3852 // From the root, only drag start/end/location are dispatched. entered/exited 3853 // are determined and dispatched by the viewgroup hierarchy, who then report 3854 // that back here for ultimate reporting back to the framework. 3855 if (mView != null && mAdded) { 3856 final int what = event.mAction; 3857 3858 if (what == DragEvent.ACTION_DRAG_EXITED) { 3859 // A direct EXITED event means that the window manager knows we've just crossed 3860 // a window boundary, so the current drag target within this one must have 3861 // just been exited. Send it the usual notifications and then we're done 3862 // for now. 3863 mView.dispatchDragEvent(event); 3864 } else { 3865 // Cache the drag description when the operation starts, then fill it in 3866 // on subsequent calls as a convenience 3867 if (what == DragEvent.ACTION_DRAG_STARTED) { 3868 mCurrentDragView = null; // Start the current-recipient tracking 3869 mDragDescription = event.mClipDescription; 3870 } else { 3871 event.mClipDescription = mDragDescription; 3872 } 3873 3874 // For events with a [screen] location, translate into window coordinates 3875 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3876 mDragPoint.set(event.mX, event.mY); 3877 if (mTranslator != null) { 3878 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3879 } 3880 3881 if (mCurScrollY != 0) { 3882 mDragPoint.offset(0, mCurScrollY); 3883 } 3884 3885 event.mX = mDragPoint.x; 3886 event.mY = mDragPoint.y; 3887 } 3888 3889 // Remember who the current drag target is pre-dispatch 3890 final View prevDragView = mCurrentDragView; 3891 3892 // Now dispatch the drag/drop event 3893 boolean result = mView.dispatchDragEvent(event); 3894 3895 // If we changed apparent drag target, tell the OS about it 3896 if (prevDragView != mCurrentDragView) { 3897 try { 3898 if (prevDragView != null) { 3899 mWindowSession.dragRecipientExited(mWindow); 3900 } 3901 if (mCurrentDragView != null) { 3902 mWindowSession.dragRecipientEntered(mWindow); 3903 } 3904 } catch (RemoteException e) { 3905 Slog.e(TAG, "Unable to note drag target change"); 3906 } 3907 } 3908 3909 // Report the drop result when we're done 3910 if (what == DragEvent.ACTION_DROP) { 3911 mDragDescription = null; 3912 try { 3913 Log.i(TAG, "Reporting drop result: " + result); 3914 mWindowSession.reportDropResult(mWindow, result); 3915 } catch (RemoteException e) { 3916 Log.e(TAG, "Unable to report drop result"); 3917 } 3918 } 3919 3920 // When the drag operation ends, release any local state object 3921 // that may have been in use 3922 if (what == DragEvent.ACTION_DRAG_ENDED) { 3923 setLocalDragState(null); 3924 } 3925 } 3926 } 3927 event.recycle(); 3928 } 3929 3930 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3931 if (mSeq != args.seq) { 3932 // The sequence has changed, so we need to update our value and make 3933 // sure to do a traversal afterward so the window manager is given our 3934 // most recent data. 3935 mSeq = args.seq; 3936 mAttachInfo.mForceReportNewAttributes = true; 3937 scheduleTraversals(); 3938 } 3939 if (mView == null) return; 3940 if (args.localChanges != 0) { 3941 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3942 } 3943 if (mAttachInfo != null) { 3944 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 3945 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 3946 mAttachInfo.mGlobalSystemUiVisibility = visibility; 3947 mView.dispatchSystemUiVisibilityChanged(visibility); 3948 } 3949 } 3950 } 3951 3952 public void handleDispatchDoneAnimating() { 3953 if (mWindowsAnimating) { 3954 mWindowsAnimating = false; 3955 if (!mDirty.isEmpty() || mIsAnimating) { 3956 scheduleTraversals(); 3957 } 3958 } 3959 } 3960 3961 public void getLastTouchPoint(Point outLocation) { 3962 outLocation.x = (int) mLastTouchPoint.x; 3963 outLocation.y = (int) mLastTouchPoint.y; 3964 } 3965 3966 public void setDragFocus(View newDragTarget) { 3967 if (mCurrentDragView != newDragTarget) { 3968 mCurrentDragView = newDragTarget; 3969 } 3970 } 3971 3972 private AudioManager getAudioManager() { 3973 if (mView == null) { 3974 throw new IllegalStateException("getAudioManager called when there is no mView"); 3975 } 3976 if (mAudioManager == null) { 3977 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3978 } 3979 return mAudioManager; 3980 } 3981 3982 public AccessibilityInteractionController getAccessibilityInteractionController() { 3983 if (mView == null) { 3984 throw new IllegalStateException("getAccessibilityInteractionController" 3985 + " called when there is no mView"); 3986 } 3987 if (mAccessibilityInteractionController == null) { 3988 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3989 } 3990 return mAccessibilityInteractionController; 3991 } 3992 3993 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3994 boolean insetsPending) throws RemoteException { 3995 3996 float appScale = mAttachInfo.mApplicationScale; 3997 boolean restore = false; 3998 if (params != null && mTranslator != null) { 3999 restore = true; 4000 params.backup(); 4001 mTranslator.translateWindowLayout(params); 4002 } 4003 if (params != null) { 4004 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4005 } 4006 mPendingConfiguration.seq = 0; 4007 //Log.d(TAG, ">>>>>> CALLING relayout"); 4008 if (params != null && mOrigWindowType != params.type) { 4009 // For compatibility with old apps, don't crash here. 4010 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4011 Slog.w(TAG, "Window type can not be changed after " 4012 + "the window is added; ignoring change of " + mView); 4013 params.type = mOrigWindowType; 4014 } 4015 } 4016 int relayoutResult = mWindowSession.relayout( 4017 mWindow, mSeq, params, 4018 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4019 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4020 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4021 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 4022 mPendingConfiguration, mSurface); 4023 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4024 if (restore) { 4025 params.restore(); 4026 } 4027 4028 if (mTranslator != null) { 4029 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4030 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4031 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4032 } 4033 return relayoutResult; 4034 } 4035 4036 /** 4037 * {@inheritDoc} 4038 */ 4039 public void playSoundEffect(int effectId) { 4040 checkThread(); 4041 4042 try { 4043 final AudioManager audioManager = getAudioManager(); 4044 4045 switch (effectId) { 4046 case SoundEffectConstants.CLICK: 4047 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4048 return; 4049 case SoundEffectConstants.NAVIGATION_DOWN: 4050 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4051 return; 4052 case SoundEffectConstants.NAVIGATION_LEFT: 4053 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4054 return; 4055 case SoundEffectConstants.NAVIGATION_RIGHT: 4056 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4057 return; 4058 case SoundEffectConstants.NAVIGATION_UP: 4059 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4060 return; 4061 default: 4062 throw new IllegalArgumentException("unknown effect id " + effectId + 4063 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4064 } 4065 } catch (IllegalStateException e) { 4066 // Exception thrown by getAudioManager() when mView is null 4067 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4068 e.printStackTrace(); 4069 } 4070 } 4071 4072 /** 4073 * {@inheritDoc} 4074 */ 4075 public boolean performHapticFeedback(int effectId, boolean always) { 4076 try { 4077 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4078 } catch (RemoteException e) { 4079 return false; 4080 } 4081 } 4082 4083 /** 4084 * {@inheritDoc} 4085 */ 4086 public View focusSearch(View focused, int direction) { 4087 checkThread(); 4088 if (!(mView instanceof ViewGroup)) { 4089 return null; 4090 } 4091 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4092 } 4093 4094 public void debug() { 4095 mView.debug(); 4096 } 4097 4098 public void dumpGfxInfo(int[] info) { 4099 info[0] = info[1] = 0; 4100 if (mView != null) { 4101 getGfxInfo(mView, info); 4102 } 4103 } 4104 4105 private static void getGfxInfo(View view, int[] info) { 4106 DisplayList displayList = view.mDisplayList; 4107 info[0]++; 4108 if (displayList != null) { 4109 info[1] += displayList.getSize(); 4110 } 4111 4112 if (view instanceof ViewGroup) { 4113 ViewGroup group = (ViewGroup) view; 4114 4115 int count = group.getChildCount(); 4116 for (int i = 0; i < count; i++) { 4117 getGfxInfo(group.getChildAt(i), info); 4118 } 4119 } 4120 } 4121 4122 public void die(boolean immediate) { 4123 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4124 // done by dispatchDetachedFromWindow will cause havoc on return. 4125 if (immediate && !mIsInTraversal) { 4126 doDie(); 4127 } else { 4128 if (!mIsDrawing) { 4129 destroyHardwareRenderer(); 4130 } else { 4131 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4132 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4133 } 4134 mHandler.sendEmptyMessage(MSG_DIE); 4135 } 4136 } 4137 4138 void doDie() { 4139 checkThread(); 4140 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4141 synchronized (this) { 4142 if (mAdded) { 4143 dispatchDetachedFromWindow(); 4144 } 4145 4146 if (mAdded && !mFirst) { 4147 invalidateDisplayLists(); 4148 destroyHardwareRenderer(); 4149 4150 if (mView != null) { 4151 int viewVisibility = mView.getVisibility(); 4152 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4153 if (mWindowAttributesChanged || viewVisibilityChanged) { 4154 // If layout params have been changed, first give them 4155 // to the window manager to make sure it has the correct 4156 // animation info. 4157 try { 4158 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4159 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4160 mWindowSession.finishDrawing(mWindow); 4161 } 4162 } catch (RemoteException e) { 4163 } 4164 } 4165 4166 mSurface.release(); 4167 } 4168 } 4169 4170 mAdded = false; 4171 } 4172 } 4173 4174 public void requestUpdateConfiguration(Configuration config) { 4175 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4176 mHandler.sendMessage(msg); 4177 } 4178 4179 public void loadSystemProperties() { 4180 mHandler.post(new Runnable() { 4181 @Override 4182 public void run() { 4183 // Profiling 4184 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4185 profileRendering(mAttachInfo.mHasWindowFocus); 4186 4187 // Hardware rendering 4188 if (mAttachInfo.mHardwareRenderer != null) { 4189 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4190 invalidate(); 4191 } 4192 } 4193 4194 // Layout debugging 4195 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4196 if (layout != mAttachInfo.mDebugLayout) { 4197 mAttachInfo.mDebugLayout = layout; 4198 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4199 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4200 } 4201 } 4202 } 4203 }); 4204 } 4205 4206 private void destroyHardwareRenderer() { 4207 AttachInfo attachInfo = mAttachInfo; 4208 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4209 4210 if (hardwareRenderer != null) { 4211 if (mView != null) { 4212 hardwareRenderer.destroyHardwareResources(mView); 4213 } 4214 hardwareRenderer.destroy(true); 4215 hardwareRenderer.setRequested(false); 4216 4217 attachInfo.mHardwareRenderer = null; 4218 attachInfo.mHardwareAccelerated = false; 4219 } 4220 } 4221 4222 void dispatchImeFinishedEvent(int seq, boolean handled) { 4223 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4224 msg.arg1 = seq; 4225 msg.arg2 = handled ? 1 : 0; 4226 msg.setAsynchronous(true); 4227 mHandler.sendMessage(msg); 4228 } 4229 4230 public void dispatchFinishInputConnection(InputConnection connection) { 4231 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4232 mHandler.sendMessage(msg); 4233 } 4234 4235 public void dispatchResized(Rect frame, Rect contentInsets, 4236 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4237 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4238 + " contentInsets=" + contentInsets.toShortString() 4239 + " visibleInsets=" + visibleInsets.toShortString() 4240 + " reportDraw=" + reportDraw); 4241 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4242 if (mTranslator != null) { 4243 mTranslator.translateRectInScreenToAppWindow(frame); 4244 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4245 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4246 } 4247 SomeArgs args = SomeArgs.obtain(); 4248 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4249 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4250 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4251 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4252 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4253 msg.obj = args; 4254 mHandler.sendMessage(msg); 4255 } 4256 4257 public void dispatchMoved(int newX, int newY) { 4258 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4259 if (mTranslator != null) { 4260 PointF point = new PointF(newX, newY); 4261 mTranslator.translatePointInScreenToAppWindow(point); 4262 newX = (int) (point.x + 0.5); 4263 newY = (int) (point.y + 0.5); 4264 } 4265 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4266 mHandler.sendMessage(msg); 4267 } 4268 4269 /** 4270 * Represents a pending input event that is waiting in a queue. 4271 * 4272 * Input events are processed in serial order by the timestamp specified by 4273 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4274 * one input event to the application at a time and waits for the application 4275 * to finish handling it before delivering the next one. 4276 * 4277 * However, because the application or IME can synthesize and inject multiple 4278 * key events at a time without going through the input dispatcher, we end up 4279 * needing a queue on the application's side. 4280 */ 4281 private static final class QueuedInputEvent { 4282 public static final int FLAG_DELIVER_POST_IME = 1; 4283 4284 public QueuedInputEvent mNext; 4285 4286 public InputEvent mEvent; 4287 public InputEventReceiver mReceiver; 4288 public int mFlags; 4289 } 4290 4291 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4292 InputEventReceiver receiver, int flags) { 4293 QueuedInputEvent q = mQueuedInputEventPool; 4294 if (q != null) { 4295 mQueuedInputEventPoolSize -= 1; 4296 mQueuedInputEventPool = q.mNext; 4297 q.mNext = null; 4298 } else { 4299 q = new QueuedInputEvent(); 4300 } 4301 4302 q.mEvent = event; 4303 q.mReceiver = receiver; 4304 q.mFlags = flags; 4305 return q; 4306 } 4307 4308 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4309 q.mEvent = null; 4310 q.mReceiver = null; 4311 4312 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4313 mQueuedInputEventPoolSize += 1; 4314 q.mNext = mQueuedInputEventPool; 4315 mQueuedInputEventPool = q; 4316 } 4317 } 4318 4319 void enqueueInputEvent(InputEvent event) { 4320 enqueueInputEvent(event, null, 0, false); 4321 } 4322 4323 void enqueueInputEvent(InputEvent event, 4324 InputEventReceiver receiver, int flags, boolean processImmediately) { 4325 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4326 4327 // Always enqueue the input event in order, regardless of its time stamp. 4328 // We do this because the application or the IME may inject key events 4329 // in response to touch events and we want to ensure that the injected keys 4330 // are processed in the order they were received and we cannot trust that 4331 // the time stamp of injected events are monotonic. 4332 QueuedInputEvent last = mFirstPendingInputEvent; 4333 if (last == null) { 4334 mFirstPendingInputEvent = q; 4335 } else { 4336 while (last.mNext != null) { 4337 last = last.mNext; 4338 } 4339 last.mNext = q; 4340 } 4341 4342 if (processImmediately) { 4343 doProcessInputEvents(); 4344 } else { 4345 scheduleProcessInputEvents(); 4346 } 4347 } 4348 4349 private void scheduleProcessInputEvents() { 4350 if (!mProcessInputEventsScheduled) { 4351 mProcessInputEventsScheduled = true; 4352 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4353 msg.setAsynchronous(true); 4354 mHandler.sendMessage(msg); 4355 } 4356 } 4357 4358 void doProcessInputEvents() { 4359 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4360 QueuedInputEvent q = mFirstPendingInputEvent; 4361 mFirstPendingInputEvent = q.mNext; 4362 q.mNext = null; 4363 mCurrentInputEvent = q; 4364 4365 final int result = deliverInputEvent(q); 4366 if (result != EVENT_IN_PROGRESS) { 4367 finishCurrentInputEvent(result == EVENT_HANDLED); 4368 } 4369 } 4370 4371 // We are done processing all input events that we can process right now 4372 // so we can clear the pending flag immediately. 4373 if (mProcessInputEventsScheduled) { 4374 mProcessInputEventsScheduled = false; 4375 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4376 } 4377 } 4378 4379 void handleImeFinishedEvent(int seq, boolean handled) { 4380 final QueuedInputEvent q = mCurrentInputEvent; 4381 if (q != null && q.mEvent.getSequenceNumber() == seq) { 4382 if (DEBUG_IMF) { 4383 Log.v(TAG, "IME finished event: seq=" + seq 4384 + " handled=" + handled + " event=" + q); 4385 } 4386 4387 if (!handled) { 4388 // If the window doesn't currently have input focus, then drop 4389 // this event. This could be an event that came back from the 4390 // IME dispatch but the window has lost focus in the meantime. 4391 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4392 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4393 } else { 4394 final int result = deliverInputEventPostIme(q); 4395 if (result == EVENT_HANDLED) { 4396 handled = true; 4397 } 4398 } 4399 } 4400 finishCurrentInputEvent(handled); 4401 4402 // Immediately start processing the next input event. 4403 doProcessInputEvents(); 4404 } else { 4405 if (DEBUG_IMF) { 4406 Log.v(TAG, "IME finished event: seq=" + seq 4407 + " handled=" + handled + ", event not found!"); 4408 } 4409 } 4410 } 4411 4412 private void finishCurrentInputEvent(boolean handled) { 4413 final QueuedInputEvent q = mCurrentInputEvent; 4414 mCurrentInputEvent = null; 4415 4416 if (q.mReceiver != null) { 4417 q.mReceiver.finishInputEvent(q.mEvent, handled); 4418 } else { 4419 q.mEvent.recycleIfNeededAfterDispatch(); 4420 } 4421 4422 recycleQueuedInputEvent(q); 4423 } 4424 4425 private static boolean isTerminalInputEvent(InputEvent event) { 4426 if (event instanceof KeyEvent) { 4427 final KeyEvent keyEvent = (KeyEvent)event; 4428 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4429 } else { 4430 final MotionEvent motionEvent = (MotionEvent)event; 4431 final int action = motionEvent.getAction(); 4432 return action == MotionEvent.ACTION_UP 4433 || action == MotionEvent.ACTION_CANCEL 4434 || action == MotionEvent.ACTION_HOVER_EXIT; 4435 } 4436 } 4437 4438 void scheduleConsumeBatchedInput() { 4439 if (!mConsumeBatchedInputScheduled) { 4440 mConsumeBatchedInputScheduled = true; 4441 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4442 mConsumedBatchedInputRunnable, null); 4443 } 4444 } 4445 4446 void unscheduleConsumeBatchedInput() { 4447 if (mConsumeBatchedInputScheduled) { 4448 mConsumeBatchedInputScheduled = false; 4449 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4450 mConsumedBatchedInputRunnable, null); 4451 } 4452 } 4453 4454 void doConsumeBatchedInput(long frameTimeNanos) { 4455 if (mConsumeBatchedInputScheduled) { 4456 mConsumeBatchedInputScheduled = false; 4457 if (mInputEventReceiver != null) { 4458 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4459 } 4460 doProcessInputEvents(); 4461 } 4462 } 4463 4464 final class TraversalRunnable implements Runnable { 4465 @Override 4466 public void run() { 4467 doTraversal(); 4468 } 4469 } 4470 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4471 4472 final class WindowInputEventReceiver extends InputEventReceiver { 4473 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4474 super(inputChannel, looper); 4475 } 4476 4477 @Override 4478 public void onInputEvent(InputEvent event) { 4479 enqueueInputEvent(event, this, 0, true); 4480 } 4481 4482 @Override 4483 public void onBatchedInputEventPending() { 4484 scheduleConsumeBatchedInput(); 4485 } 4486 4487 @Override 4488 public void dispose() { 4489 unscheduleConsumeBatchedInput(); 4490 super.dispose(); 4491 } 4492 } 4493 WindowInputEventReceiver mInputEventReceiver; 4494 4495 final class ConsumeBatchedInputRunnable implements Runnable { 4496 @Override 4497 public void run() { 4498 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4499 } 4500 } 4501 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4502 new ConsumeBatchedInputRunnable(); 4503 boolean mConsumeBatchedInputScheduled; 4504 4505 final class InvalidateOnAnimationRunnable implements Runnable { 4506 private boolean mPosted; 4507 private ArrayList<View> mViews = new ArrayList<View>(); 4508 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4509 new ArrayList<AttachInfo.InvalidateInfo>(); 4510 private View[] mTempViews; 4511 private AttachInfo.InvalidateInfo[] mTempViewRects; 4512 4513 public void addView(View view) { 4514 synchronized (this) { 4515 mViews.add(view); 4516 postIfNeededLocked(); 4517 } 4518 } 4519 4520 public void addViewRect(AttachInfo.InvalidateInfo info) { 4521 synchronized (this) { 4522 mViewRects.add(info); 4523 postIfNeededLocked(); 4524 } 4525 } 4526 4527 public void removeView(View view) { 4528 synchronized (this) { 4529 mViews.remove(view); 4530 4531 for (int i = mViewRects.size(); i-- > 0; ) { 4532 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4533 if (info.target == view) { 4534 mViewRects.remove(i); 4535 info.recycle(); 4536 } 4537 } 4538 4539 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4540 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4541 mPosted = false; 4542 } 4543 } 4544 } 4545 4546 @Override 4547 public void run() { 4548 final int viewCount; 4549 final int viewRectCount; 4550 synchronized (this) { 4551 mPosted = false; 4552 4553 viewCount = mViews.size(); 4554 if (viewCount != 0) { 4555 mTempViews = mViews.toArray(mTempViews != null 4556 ? mTempViews : new View[viewCount]); 4557 mViews.clear(); 4558 } 4559 4560 viewRectCount = mViewRects.size(); 4561 if (viewRectCount != 0) { 4562 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4563 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4564 mViewRects.clear(); 4565 } 4566 } 4567 4568 for (int i = 0; i < viewCount; i++) { 4569 mTempViews[i].invalidate(); 4570 mTempViews[i] = null; 4571 } 4572 4573 for (int i = 0; i < viewRectCount; i++) { 4574 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4575 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4576 info.recycle(); 4577 } 4578 } 4579 4580 private void postIfNeededLocked() { 4581 if (!mPosted) { 4582 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4583 mPosted = true; 4584 } 4585 } 4586 } 4587 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4588 new InvalidateOnAnimationRunnable(); 4589 4590 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4591 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4592 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4593 } 4594 4595 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4596 long delayMilliseconds) { 4597 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4598 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4599 } 4600 4601 public void dispatchInvalidateOnAnimation(View view) { 4602 mInvalidateOnAnimationRunnable.addView(view); 4603 } 4604 4605 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4606 mInvalidateOnAnimationRunnable.addViewRect(info); 4607 } 4608 4609 public void enqueueDisplayList(DisplayList displayList) { 4610 mDisplayLists.add(displayList); 4611 } 4612 4613 public void cancelInvalidate(View view) { 4614 mHandler.removeMessages(MSG_INVALIDATE, view); 4615 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4616 // them to the pool 4617 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4618 mInvalidateOnAnimationRunnable.removeView(view); 4619 } 4620 4621 public void dispatchKey(KeyEvent event) { 4622 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4623 msg.setAsynchronous(true); 4624 mHandler.sendMessage(msg); 4625 } 4626 4627 public void dispatchKeyFromIme(KeyEvent event) { 4628 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4629 msg.setAsynchronous(true); 4630 mHandler.sendMessage(msg); 4631 } 4632 4633 public void dispatchUnhandledKey(KeyEvent event) { 4634 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4635 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4636 final int keyCode = event.getKeyCode(); 4637 final int metaState = event.getMetaState(); 4638 4639 // Check for fallback actions specified by the key character map. 4640 KeyCharacterMap.FallbackAction fallbackAction = 4641 kcm.getFallbackAction(keyCode, metaState); 4642 if (fallbackAction != null) { 4643 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4644 KeyEvent fallbackEvent = KeyEvent.obtain( 4645 event.getDownTime(), event.getEventTime(), 4646 event.getAction(), fallbackAction.keyCode, 4647 event.getRepeatCount(), fallbackAction.metaState, 4648 event.getDeviceId(), event.getScanCode(), 4649 flags, event.getSource(), null); 4650 fallbackAction.recycle(); 4651 4652 dispatchKey(fallbackEvent); 4653 } 4654 } 4655 } 4656 4657 public void dispatchAppVisibility(boolean visible) { 4658 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4659 msg.arg1 = visible ? 1 : 0; 4660 mHandler.sendMessage(msg); 4661 } 4662 4663 public void dispatchScreenStateChange(boolean on) { 4664 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4665 msg.arg1 = on ? 1 : 0; 4666 mHandler.sendMessage(msg); 4667 } 4668 4669 public void dispatchGetNewSurface() { 4670 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4671 mHandler.sendMessage(msg); 4672 } 4673 4674 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4675 Message msg = Message.obtain(); 4676 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4677 msg.arg1 = hasFocus ? 1 : 0; 4678 msg.arg2 = inTouchMode ? 1 : 0; 4679 mHandler.sendMessage(msg); 4680 } 4681 4682 public void dispatchCloseSystemDialogs(String reason) { 4683 Message msg = Message.obtain(); 4684 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4685 msg.obj = reason; 4686 mHandler.sendMessage(msg); 4687 } 4688 4689 public void dispatchDragEvent(DragEvent event) { 4690 final int what; 4691 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4692 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4693 mHandler.removeMessages(what); 4694 } else { 4695 what = MSG_DISPATCH_DRAG_EVENT; 4696 } 4697 Message msg = mHandler.obtainMessage(what, event); 4698 mHandler.sendMessage(msg); 4699 } 4700 4701 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4702 int localValue, int localChanges) { 4703 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4704 args.seq = seq; 4705 args.globalVisibility = globalVisibility; 4706 args.localValue = localValue; 4707 args.localChanges = localChanges; 4708 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4709 } 4710 4711 public void dispatchDoneAnimating() { 4712 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4713 } 4714 4715 public void dispatchCheckFocus() { 4716 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4717 // This will result in a call to checkFocus() below. 4718 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4719 } 4720 } 4721 4722 /** 4723 * Post a callback to send a 4724 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4725 * This event is send at most once every 4726 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4727 */ 4728 private void postSendWindowContentChangedCallback(View source) { 4729 if (mSendWindowContentChangedAccessibilityEvent == null) { 4730 mSendWindowContentChangedAccessibilityEvent = 4731 new SendWindowContentChangedAccessibilityEvent(); 4732 } 4733 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4734 if (oldSource == null) { 4735 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4736 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4737 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4738 } else { 4739 mSendWindowContentChangedAccessibilityEvent.mSource = 4740 getCommonPredecessor(oldSource, source); 4741 } 4742 } 4743 4744 /** 4745 * Remove a posted callback to send a 4746 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4747 */ 4748 private void removeSendWindowContentChangedCallback() { 4749 if (mSendWindowContentChangedAccessibilityEvent != null) { 4750 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4751 } 4752 } 4753 4754 public boolean showContextMenuForChild(View originalView) { 4755 return false; 4756 } 4757 4758 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4759 return null; 4760 } 4761 4762 public void createContextMenu(ContextMenu menu) { 4763 } 4764 4765 public void childDrawableStateChanged(View child) { 4766 } 4767 4768 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4769 if (mView == null) { 4770 return false; 4771 } 4772 // Intercept accessibility focus events fired by virtual nodes to keep 4773 // track of accessibility focus position in such nodes. 4774 final int eventType = event.getEventType(); 4775 switch (eventType) { 4776 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4777 final long sourceNodeId = event.getSourceNodeId(); 4778 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4779 sourceNodeId); 4780 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4781 if (source != null) { 4782 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4783 if (provider != null) { 4784 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4785 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4786 setAccessibilityFocus(source, node); 4787 } 4788 } 4789 } break; 4790 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4791 final long sourceNodeId = event.getSourceNodeId(); 4792 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4793 sourceNodeId); 4794 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4795 if (source != null) { 4796 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4797 if (provider != null) { 4798 setAccessibilityFocus(null, null); 4799 } 4800 } 4801 } break; 4802 } 4803 mAccessibilityManager.sendAccessibilityEvent(event); 4804 return true; 4805 } 4806 4807 @Override 4808 public void childAccessibilityStateChanged(View child) { 4809 postSendWindowContentChangedCallback(child); 4810 } 4811 4812 private View getCommonPredecessor(View first, View second) { 4813 if (mAttachInfo != null) { 4814 if (mTempHashSet == null) { 4815 mTempHashSet = new HashSet<View>(); 4816 } 4817 HashSet<View> seen = mTempHashSet; 4818 seen.clear(); 4819 View firstCurrent = first; 4820 while (firstCurrent != null) { 4821 seen.add(firstCurrent); 4822 ViewParent firstCurrentParent = firstCurrent.mParent; 4823 if (firstCurrentParent instanceof View) { 4824 firstCurrent = (View) firstCurrentParent; 4825 } else { 4826 firstCurrent = null; 4827 } 4828 } 4829 View secondCurrent = second; 4830 while (secondCurrent != null) { 4831 if (seen.contains(secondCurrent)) { 4832 seen.clear(); 4833 return secondCurrent; 4834 } 4835 ViewParent secondCurrentParent = secondCurrent.mParent; 4836 if (secondCurrentParent instanceof View) { 4837 secondCurrent = (View) secondCurrentParent; 4838 } else { 4839 secondCurrent = null; 4840 } 4841 } 4842 seen.clear(); 4843 } 4844 return null; 4845 } 4846 4847 void checkThread() { 4848 if (mThread != Thread.currentThread()) { 4849 throw new CalledFromWrongThreadException( 4850 "Only the original thread that created a view hierarchy can touch its views."); 4851 } 4852 } 4853 4854 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4855 // ViewAncestor never intercepts touch event, so this can be a no-op 4856 } 4857 4858 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 4859 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 4860 if (rectangle != null) { 4861 mTempRect.set(rectangle); 4862 mTempRect.offset(0, -mCurScrollY); 4863 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 4864 try { 4865 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 4866 } catch (RemoteException re) { 4867 /* ignore */ 4868 } 4869 } 4870 return scrolled; 4871 } 4872 4873 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4874 // Do nothing. 4875 } 4876 4877 class TakenSurfaceHolder extends BaseSurfaceHolder { 4878 @Override 4879 public boolean onAllowLockCanvas() { 4880 return mDrawingAllowed; 4881 } 4882 4883 @Override 4884 public void onRelayoutContainer() { 4885 // Not currently interesting -- from changing between fixed and layout size. 4886 } 4887 4888 public void setFormat(int format) { 4889 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4890 } 4891 4892 public void setType(int type) { 4893 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4894 } 4895 4896 @Override 4897 public void onUpdateSurface() { 4898 // We take care of format and type changes on our own. 4899 throw new IllegalStateException("Shouldn't be here"); 4900 } 4901 4902 public boolean isCreating() { 4903 return mIsCreating; 4904 } 4905 4906 @Override 4907 public void setFixedSize(int width, int height) { 4908 throw new UnsupportedOperationException( 4909 "Currently only support sizing from layout"); 4910 } 4911 4912 public void setKeepScreenOn(boolean screenOn) { 4913 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4914 } 4915 } 4916 4917 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 4918 private WeakReference<ViewRootImpl> mViewAncestor; 4919 4920 public InputMethodCallback(ViewRootImpl viewAncestor) { 4921 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4922 } 4923 4924 @Override 4925 public void finishedEvent(int seq, boolean handled) { 4926 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4927 if (viewAncestor != null) { 4928 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4929 } 4930 } 4931 } 4932 4933 static class W extends IWindow.Stub { 4934 private final WeakReference<ViewRootImpl> mViewAncestor; 4935 private final IWindowSession mWindowSession; 4936 4937 W(ViewRootImpl viewAncestor) { 4938 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4939 mWindowSession = viewAncestor.mWindowSession; 4940 } 4941 4942 public void resized(Rect frame, Rect contentInsets, 4943 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4944 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4945 if (viewAncestor != null) { 4946 viewAncestor.dispatchResized(frame, contentInsets, 4947 visibleInsets, reportDraw, newConfig); 4948 } 4949 } 4950 4951 @Override 4952 public void moved(int newX, int newY) { 4953 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4954 if (viewAncestor != null) { 4955 viewAncestor.dispatchMoved(newX, newY); 4956 } 4957 } 4958 4959 public void dispatchAppVisibility(boolean visible) { 4960 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4961 if (viewAncestor != null) { 4962 viewAncestor.dispatchAppVisibility(visible); 4963 } 4964 } 4965 4966 public void dispatchScreenState(boolean on) { 4967 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4968 if (viewAncestor != null) { 4969 viewAncestor.dispatchScreenStateChange(on); 4970 } 4971 } 4972 4973 public void dispatchGetNewSurface() { 4974 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4975 if (viewAncestor != null) { 4976 viewAncestor.dispatchGetNewSurface(); 4977 } 4978 } 4979 4980 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4981 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4982 if (viewAncestor != null) { 4983 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4984 } 4985 } 4986 4987 private static int checkCallingPermission(String permission) { 4988 try { 4989 return ActivityManagerNative.getDefault().checkPermission( 4990 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4991 } catch (RemoteException e) { 4992 return PackageManager.PERMISSION_DENIED; 4993 } 4994 } 4995 4996 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4997 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4998 if (viewAncestor != null) { 4999 final View view = viewAncestor.mView; 5000 if (view != null) { 5001 if (checkCallingPermission(Manifest.permission.DUMP) != 5002 PackageManager.PERMISSION_GRANTED) { 5003 throw new SecurityException("Insufficient permissions to invoke" 5004 + " executeCommand() from pid=" + Binder.getCallingPid() 5005 + ", uid=" + Binder.getCallingUid()); 5006 } 5007 5008 OutputStream clientStream = null; 5009 try { 5010 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5011 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5012 } catch (IOException e) { 5013 e.printStackTrace(); 5014 } finally { 5015 if (clientStream != null) { 5016 try { 5017 clientStream.close(); 5018 } catch (IOException e) { 5019 e.printStackTrace(); 5020 } 5021 } 5022 } 5023 } 5024 } 5025 } 5026 5027 public void closeSystemDialogs(String reason) { 5028 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5029 if (viewAncestor != null) { 5030 viewAncestor.dispatchCloseSystemDialogs(reason); 5031 } 5032 } 5033 5034 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5035 boolean sync) { 5036 if (sync) { 5037 try { 5038 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5039 } catch (RemoteException e) { 5040 } 5041 } 5042 } 5043 5044 public void dispatchWallpaperCommand(String action, int x, int y, 5045 int z, Bundle extras, boolean sync) { 5046 if (sync) { 5047 try { 5048 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5049 } catch (RemoteException e) { 5050 } 5051 } 5052 } 5053 5054 /* Drag/drop */ 5055 public void dispatchDragEvent(DragEvent event) { 5056 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5057 if (viewAncestor != null) { 5058 viewAncestor.dispatchDragEvent(event); 5059 } 5060 } 5061 5062 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5063 int localValue, int localChanges) { 5064 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5065 if (viewAncestor != null) { 5066 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5067 localValue, localChanges); 5068 } 5069 } 5070 5071 public void doneAnimating() { 5072 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5073 if (viewAncestor != null) { 5074 viewAncestor.dispatchDoneAnimating(); 5075 } 5076 } 5077 } 5078 5079 /** 5080 * Maintains state information for a single trackball axis, generating 5081 * discrete (DPAD) movements based on raw trackball motion. 5082 */ 5083 static final class TrackballAxis { 5084 /** 5085 * The maximum amount of acceleration we will apply. 5086 */ 5087 static final float MAX_ACCELERATION = 20; 5088 5089 /** 5090 * The maximum amount of time (in milliseconds) between events in order 5091 * for us to consider the user to be doing fast trackball movements, 5092 * and thus apply an acceleration. 5093 */ 5094 static final long FAST_MOVE_TIME = 150; 5095 5096 /** 5097 * Scaling factor to the time (in milliseconds) between events to how 5098 * much to multiple/divide the current acceleration. When movement 5099 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5100 * FAST_MOVE_TIME it divides it. 5101 */ 5102 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5103 5104 float position; 5105 float absPosition; 5106 float acceleration = 1; 5107 long lastMoveTime = 0; 5108 int step; 5109 int dir; 5110 int nonAccelMovement; 5111 5112 void reset(int _step) { 5113 position = 0; 5114 acceleration = 1; 5115 lastMoveTime = 0; 5116 step = _step; 5117 dir = 0; 5118 } 5119 5120 /** 5121 * Add trackball movement into the state. If the direction of movement 5122 * has been reversed, the state is reset before adding the 5123 * movement (so that you don't have to compensate for any previously 5124 * collected movement before see the result of the movement in the 5125 * new direction). 5126 * 5127 * @return Returns the absolute value of the amount of movement 5128 * collected so far. 5129 */ 5130 float collect(float off, long time, String axis) { 5131 long normTime; 5132 if (off > 0) { 5133 normTime = (long)(off * FAST_MOVE_TIME); 5134 if (dir < 0) { 5135 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5136 position = 0; 5137 step = 0; 5138 acceleration = 1; 5139 lastMoveTime = 0; 5140 } 5141 dir = 1; 5142 } else if (off < 0) { 5143 normTime = (long)((-off) * FAST_MOVE_TIME); 5144 if (dir > 0) { 5145 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5146 position = 0; 5147 step = 0; 5148 acceleration = 1; 5149 lastMoveTime = 0; 5150 } 5151 dir = -1; 5152 } else { 5153 normTime = 0; 5154 } 5155 5156 // The number of milliseconds between each movement that is 5157 // considered "normal" and will not result in any acceleration 5158 // or deceleration, scaled by the offset we have here. 5159 if (normTime > 0) { 5160 long delta = time - lastMoveTime; 5161 lastMoveTime = time; 5162 float acc = acceleration; 5163 if (delta < normTime) { 5164 // The user is scrolling rapidly, so increase acceleration. 5165 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5166 if (scale > 1) acc *= scale; 5167 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5168 + off + " normTime=" + normTime + " delta=" + delta 5169 + " scale=" + scale + " acc=" + acc); 5170 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5171 } else { 5172 // The user is scrolling slowly, so decrease acceleration. 5173 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5174 if (scale > 1) acc /= scale; 5175 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5176 + off + " normTime=" + normTime + " delta=" + delta 5177 + " scale=" + scale + " acc=" + acc); 5178 acceleration = acc > 1 ? acc : 1; 5179 } 5180 } 5181 position += off; 5182 return (absPosition = Math.abs(position)); 5183 } 5184 5185 /** 5186 * Generate the number of discrete movement events appropriate for 5187 * the currently collected trackball movement. 5188 * 5189 * @param precision The minimum movement required to generate the 5190 * first discrete movement. 5191 * 5192 * @return Returns the number of discrete movements, either positive 5193 * or negative, or 0 if there is not enough trackball movement yet 5194 * for a discrete movement. 5195 */ 5196 int generate(float precision) { 5197 int movement = 0; 5198 nonAccelMovement = 0; 5199 do { 5200 final int dir = position >= 0 ? 1 : -1; 5201 switch (step) { 5202 // If we are going to execute the first step, then we want 5203 // to do this as soon as possible instead of waiting for 5204 // a full movement, in order to make things look responsive. 5205 case 0: 5206 if (absPosition < precision) { 5207 return movement; 5208 } 5209 movement += dir; 5210 nonAccelMovement += dir; 5211 step = 1; 5212 break; 5213 // If we have generated the first movement, then we need 5214 // to wait for the second complete trackball motion before 5215 // generating the second discrete movement. 5216 case 1: 5217 if (absPosition < 2) { 5218 return movement; 5219 } 5220 movement += dir; 5221 nonAccelMovement += dir; 5222 position += dir > 0 ? -2 : 2; 5223 absPosition = Math.abs(position); 5224 step = 2; 5225 break; 5226 // After the first two, we generate discrete movements 5227 // consistently with the trackball, applying an acceleration 5228 // if the trackball is moving quickly. This is a simple 5229 // acceleration on top of what we already compute based 5230 // on how quickly the wheel is being turned, to apply 5231 // a longer increasing acceleration to continuous movement 5232 // in one direction. 5233 default: 5234 if (absPosition < 1) { 5235 return movement; 5236 } 5237 movement += dir; 5238 position += dir >= 0 ? -1 : 1; 5239 absPosition = Math.abs(position); 5240 float acc = acceleration; 5241 acc *= 1.1f; 5242 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5243 break; 5244 } 5245 } while (true); 5246 } 5247 } 5248 5249 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5250 public CalledFromWrongThreadException(String msg) { 5251 super(msg); 5252 } 5253 } 5254 5255 private SurfaceHolder mHolder = new SurfaceHolder() { 5256 // we only need a SurfaceHolder for opengl. it would be nice 5257 // to implement everything else though, especially the callback 5258 // support (opengl doesn't make use of it right now, but eventually 5259 // will). 5260 public Surface getSurface() { 5261 return mSurface; 5262 } 5263 5264 public boolean isCreating() { 5265 return false; 5266 } 5267 5268 public void addCallback(Callback callback) { 5269 } 5270 5271 public void removeCallback(Callback callback) { 5272 } 5273 5274 public void setFixedSize(int width, int height) { 5275 } 5276 5277 public void setSizeFromLayout() { 5278 } 5279 5280 public void setFormat(int format) { 5281 } 5282 5283 public void setType(int type) { 5284 } 5285 5286 public void setKeepScreenOn(boolean screenOn) { 5287 } 5288 5289 public Canvas lockCanvas() { 5290 return null; 5291 } 5292 5293 public Canvas lockCanvas(Rect dirty) { 5294 return null; 5295 } 5296 5297 public void unlockCanvasAndPost(Canvas canvas) { 5298 } 5299 public Rect getSurfaceFrame() { 5300 return null; 5301 } 5302 }; 5303 5304 static RunQueue getRunQueue() { 5305 RunQueue rq = sRunQueues.get(); 5306 if (rq != null) { 5307 return rq; 5308 } 5309 rq = new RunQueue(); 5310 sRunQueues.set(rq); 5311 return rq; 5312 } 5313 5314 /** 5315 * The run queue is used to enqueue pending work from Views when no Handler is 5316 * attached. The work is executed during the next call to performTraversals on 5317 * the thread. 5318 * @hide 5319 */ 5320 static final class RunQueue { 5321 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5322 5323 void post(Runnable action) { 5324 postDelayed(action, 0); 5325 } 5326 5327 void postDelayed(Runnable action, long delayMillis) { 5328 HandlerAction handlerAction = new HandlerAction(); 5329 handlerAction.action = action; 5330 handlerAction.delay = delayMillis; 5331 5332 synchronized (mActions) { 5333 mActions.add(handlerAction); 5334 } 5335 } 5336 5337 void removeCallbacks(Runnable action) { 5338 final HandlerAction handlerAction = new HandlerAction(); 5339 handlerAction.action = action; 5340 5341 synchronized (mActions) { 5342 final ArrayList<HandlerAction> actions = mActions; 5343 5344 while (actions.remove(handlerAction)) { 5345 // Keep going 5346 } 5347 } 5348 } 5349 5350 void executeActions(Handler handler) { 5351 synchronized (mActions) { 5352 final ArrayList<HandlerAction> actions = mActions; 5353 final int count = actions.size(); 5354 5355 for (int i = 0; i < count; i++) { 5356 final HandlerAction handlerAction = actions.get(i); 5357 handler.postDelayed(handlerAction.action, handlerAction.delay); 5358 } 5359 5360 actions.clear(); 5361 } 5362 } 5363 5364 private static class HandlerAction { 5365 Runnable action; 5366 long delay; 5367 5368 @Override 5369 public boolean equals(Object o) { 5370 if (this == o) return true; 5371 if (o == null || getClass() != o.getClass()) return false; 5372 5373 HandlerAction that = (HandlerAction) o; 5374 return !(action != null ? !action.equals(that.action) : that.action != null); 5375 5376 } 5377 5378 @Override 5379 public int hashCode() { 5380 int result = action != null ? action.hashCode() : 0; 5381 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5382 return result; 5383 } 5384 } 5385 } 5386 5387 /** 5388 * Class for managing the accessibility interaction connection 5389 * based on the global accessibility state. 5390 */ 5391 final class AccessibilityInteractionConnectionManager 5392 implements AccessibilityStateChangeListener { 5393 public void onAccessibilityStateChanged(boolean enabled) { 5394 if (enabled) { 5395 ensureConnection(); 5396 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5397 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5398 View focusedView = mView.findFocus(); 5399 if (focusedView != null && focusedView != mView) { 5400 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5401 } 5402 } 5403 } else { 5404 ensureNoConnection(); 5405 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5406 } 5407 } 5408 5409 public void ensureConnection() { 5410 if (mAttachInfo != null) { 5411 final boolean registered = 5412 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5413 if (!registered) { 5414 mAttachInfo.mAccessibilityWindowId = 5415 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5416 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5417 } 5418 } 5419 } 5420 5421 public void ensureNoConnection() { 5422 final boolean registered = 5423 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5424 if (registered) { 5425 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5426 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5427 } 5428 } 5429 } 5430 5431 /** 5432 * This class is an interface this ViewAncestor provides to the 5433 * AccessibilityManagerService to the latter can interact with 5434 * the view hierarchy in this ViewAncestor. 5435 */ 5436 static final class AccessibilityInteractionConnection 5437 extends IAccessibilityInteractionConnection.Stub { 5438 private final WeakReference<ViewRootImpl> mViewRootImpl; 5439 5440 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5441 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5442 } 5443 5444 @Override 5445 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5446 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5447 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5448 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5449 if (viewRootImpl != null && viewRootImpl.mView != null) { 5450 viewRootImpl.getAccessibilityInteractionController() 5451 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5452 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5453 spec); 5454 } else { 5455 // We cannot make the call and notify the caller so it does not wait. 5456 try { 5457 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5458 } catch (RemoteException re) { 5459 /* best effort - ignore */ 5460 } 5461 } 5462 } 5463 5464 @Override 5465 public void performAccessibilityAction(long accessibilityNodeId, int action, 5466 Bundle arguments, int interactionId, 5467 IAccessibilityInteractionConnectionCallback callback, int flags, 5468 int interogatingPid, long interrogatingTid) { 5469 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5470 if (viewRootImpl != null && viewRootImpl.mView != null) { 5471 viewRootImpl.getAccessibilityInteractionController() 5472 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5473 interactionId, callback, flags, interogatingPid, interrogatingTid); 5474 } else { 5475 // We cannot make the call and notify the caller so it does not wait. 5476 try { 5477 callback.setPerformAccessibilityActionResult(false, interactionId); 5478 } catch (RemoteException re) { 5479 /* best effort - ignore */ 5480 } 5481 } 5482 } 5483 5484 @Override 5485 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5486 String viewId, int interactionId, 5487 IAccessibilityInteractionConnectionCallback callback, int flags, 5488 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5489 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5490 if (viewRootImpl != null && viewRootImpl.mView != null) { 5491 viewRootImpl.getAccessibilityInteractionController() 5492 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5493 viewId, interactionId, callback, flags, interrogatingPid, 5494 interrogatingTid, spec); 5495 } else { 5496 // We cannot make the call and notify the caller so it does not wait. 5497 try { 5498 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5499 } catch (RemoteException re) { 5500 /* best effort - ignore */ 5501 } 5502 } 5503 } 5504 5505 @Override 5506 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5507 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5508 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5509 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5510 if (viewRootImpl != null && viewRootImpl.mView != null) { 5511 viewRootImpl.getAccessibilityInteractionController() 5512 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5513 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5514 spec); 5515 } else { 5516 // We cannot make the call and notify the caller so it does not wait. 5517 try { 5518 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5519 } catch (RemoteException re) { 5520 /* best effort - ignore */ 5521 } 5522 } 5523 } 5524 5525 @Override 5526 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5527 IAccessibilityInteractionConnectionCallback callback, int flags, 5528 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5529 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5530 if (viewRootImpl != null && viewRootImpl.mView != null) { 5531 viewRootImpl.getAccessibilityInteractionController() 5532 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5533 flags, interrogatingPid, interrogatingTid, spec); 5534 } else { 5535 // We cannot make the call and notify the caller so it does not wait. 5536 try { 5537 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5538 } catch (RemoteException re) { 5539 /* best effort - ignore */ 5540 } 5541 } 5542 } 5543 5544 @Override 5545 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5546 IAccessibilityInteractionConnectionCallback callback, int flags, 5547 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5548 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5549 if (viewRootImpl != null && viewRootImpl.mView != null) { 5550 viewRootImpl.getAccessibilityInteractionController() 5551 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5552 callback, flags, interrogatingPid, interrogatingTid, spec); 5553 } else { 5554 // We cannot make the call and notify the caller so it does not wait. 5555 try { 5556 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5557 } catch (RemoteException re) { 5558 /* best effort - ignore */ 5559 } 5560 } 5561 } 5562 } 5563 5564 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5565 public View mSource; 5566 5567 public void run() { 5568 if (mSource != null) { 5569 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5570 mSource.resetAccessibilityStateChanged(); 5571 mSource = null; 5572 } 5573 } 5574 } 5575} 5576