ViewRootImpl.java revision 44d79747b5e434e8f43928b5548442c65e40e5c3
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.PackageManager; 27import android.content.res.CompatibilityInfo; 28import android.content.res.Configuration; 29import android.content.res.Resources; 30import android.graphics.Canvas; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.media.AudioManager; 39import android.os.Binder; 40import android.os.Bundle; 41import android.os.Debug; 42import android.os.Handler; 43import android.os.LatencyTimer; 44import android.os.Looper; 45import android.os.Message; 46import android.os.ParcelFileDescriptor; 47import android.os.Process; 48import android.os.RemoteException; 49import android.os.SystemClock; 50import android.os.SystemProperties; 51import android.util.AndroidRuntimeException; 52import android.util.DisplayMetrics; 53import android.util.EventLog; 54import android.util.Log; 55import android.util.Pool; 56import android.util.Poolable; 57import android.util.PoolableManager; 58import android.util.Pools; 59import android.util.Slog; 60import android.util.TypedValue; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityInteractionClient; 64import android.view.accessibility.AccessibilityManager; 65import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 66import android.view.accessibility.AccessibilityNodeInfo; 67import android.view.accessibility.AccessibilityNodeProvider; 68import android.view.accessibility.IAccessibilityInteractionConnection; 69import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 70import android.view.animation.AccelerateDecelerateInterpolator; 71import android.view.animation.Interpolator; 72import android.view.inputmethod.InputConnection; 73import android.view.inputmethod.InputMethodManager; 74import android.widget.Scroller; 75 76import com.android.internal.policy.PolicyManager; 77import com.android.internal.view.BaseSurfaceHolder; 78import com.android.internal.view.IInputMethodCallback; 79import com.android.internal.view.IInputMethodSession; 80import com.android.internal.view.RootViewSurfaceTaker; 81 82import java.io.IOException; 83import java.io.OutputStream; 84import java.io.PrintWriter; 85import java.lang.ref.WeakReference; 86import java.util.ArrayList; 87import java.util.List; 88 89/** 90 * The top of a view hierarchy, implementing the needed protocol between View 91 * and the WindowManager. This is for the most part an internal implementation 92 * detail of {@link WindowManagerImpl}. 93 * 94 * {@hide} 95 */ 96@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 97public final class ViewRootImpl extends Handler implements ViewParent, 98 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks, 99 Choreographer.OnDrawListener { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean DEBUG_FPS = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static IWindowSession sWindowSession; 130 131 static final Object mStaticInit = new Object(); 132 static boolean mInitialized = false; 133 134 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 135 136 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 137 static boolean sFirstDrawComplete = false; 138 139 static final ArrayList<ComponentCallbacks> sConfigCallbacks 140 = new ArrayList<ComponentCallbacks>(); 141 142 long mLastTrackballTime = 0; 143 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 144 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 145 146 int mLastJoystickXDirection; 147 int mLastJoystickYDirection; 148 int mLastJoystickXKeyCode; 149 int mLastJoystickYKeyCode; 150 151 final int[] mTmpLocation = new int[2]; 152 153 final TypedValue mTmpValue = new TypedValue(); 154 155 final InputMethodCallback mInputMethodCallback; 156 final Thread mThread; 157 158 final WindowLeaked mLocation; 159 160 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 161 162 final W mWindow; 163 164 final int mTargetSdkVersion; 165 166 int mSeq; 167 168 View mView; 169 View mFocusedView; 170 View mRealFocusedView; // this is not set to null in touch mode 171 int mViewVisibility; 172 boolean mAppVisible = true; 173 int mOrigWindowType = -1; 174 175 // Set to true if the owner of this window is in the stopped state, 176 // so the window should no longer be active. 177 boolean mStopped = false; 178 179 boolean mLastInCompatMode = false; 180 181 SurfaceHolder.Callback2 mSurfaceHolderCallback; 182 BaseSurfaceHolder mSurfaceHolder; 183 boolean mIsCreating; 184 boolean mDrawingAllowed; 185 186 final Region mTransparentRegion; 187 final Region mPreviousTransparentRegion; 188 189 int mWidth; 190 int mHeight; 191 Rect mDirty; 192 final Rect mCurrentDirty = new Rect(); 193 final Rect mPreviousDirty = new Rect(); 194 boolean mIsAnimating; 195 196 CompatibilityInfo.Translator mTranslator; 197 198 final View.AttachInfo mAttachInfo; 199 InputChannel mInputChannel; 200 InputQueue.Callback mInputQueueCallback; 201 InputQueue mInputQueue; 202 FallbackEventHandler mFallbackEventHandler; 203 Choreographer mChoreographer; 204 205 final Rect mTempRect; // used in the transaction to not thrash the heap. 206 final Rect mVisRect; // used to retrieve visible rect of focused view. 207 208 boolean mTraversalScheduled; 209 long mLastTraversalFinishedTimeNanos; 210 long mLastDrawFinishedTimeNanos; 211 boolean mWillDrawSoon; 212 boolean mLayoutRequested; 213 boolean mFirst; 214 boolean mReportNextDraw; 215 boolean mFullRedrawNeeded; 216 boolean mNewSurfaceNeeded; 217 boolean mHasHadWindowFocus; 218 boolean mLastWasImTarget; 219 220 // Pool of queued input events. 221 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 222 private QueuedInputEvent mQueuedInputEventPool; 223 private int mQueuedInputEventPoolSize; 224 225 // Input event queue. 226 QueuedInputEvent mFirstPendingInputEvent; 227 QueuedInputEvent mCurrentInputEvent; 228 boolean mProcessInputEventsScheduled; 229 230 boolean mWindowAttributesChanged = false; 231 int mWindowAttributesChangesFlag = 0; 232 233 // These can be accessed by any thread, must be protected with a lock. 234 // Surface can never be reassigned or cleared (use Surface.clear()). 235 private final Surface mSurface = new Surface(); 236 237 boolean mAdded; 238 boolean mAddedTouchMode; 239 240 CompatibilityInfoHolder mCompatibilityInfo; 241 242 /*package*/ int mAddNesting; 243 244 // These are accessed by multiple threads. 245 final Rect mWinFrame; // frame given by window manager. 246 247 final Rect mPendingVisibleInsets = new Rect(); 248 final Rect mPendingContentInsets = new Rect(); 249 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 250 = new ViewTreeObserver.InternalInsetsInfo(); 251 252 final Configuration mLastConfiguration = new Configuration(); 253 final Configuration mPendingConfiguration = new Configuration(); 254 255 class ResizedInfo { 256 Rect coveredInsets; 257 Rect visibleInsets; 258 Configuration newConfig; 259 } 260 261 boolean mScrollMayChange; 262 int mSoftInputMode; 263 View mLastScrolledFocus; 264 int mScrollY; 265 int mCurScrollY; 266 Scroller mScroller; 267 HardwareLayer mResizeBuffer; 268 long mResizeBufferStartTime; 269 int mResizeBufferDuration; 270 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 271 private ArrayList<LayoutTransition> mPendingTransitions; 272 273 final ViewConfiguration mViewConfiguration; 274 275 /* Drag/drop */ 276 ClipDescription mDragDescription; 277 View mCurrentDragView; 278 volatile Object mLocalDragState; 279 final PointF mDragPoint = new PointF(); 280 final PointF mLastTouchPoint = new PointF(); 281 282 private boolean mProfileRendering; 283 private Thread mRenderProfiler; 284 private volatile boolean mRenderProfilingEnabled; 285 286 // Variables to track frames per second, enabled via DEBUG_FPS flag 287 private long mFpsStartTime = -1; 288 private long mFpsPrevTime = -1; 289 private int mFpsNumFrames; 290 291 /** 292 * see {@link #playSoundEffect(int)} 293 */ 294 AudioManager mAudioManager; 295 296 final AccessibilityManager mAccessibilityManager; 297 298 AccessibilityInteractionController mAccessibilityInteractionController; 299 300 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 301 302 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 303 304 private final int mDensity; 305 306 /** 307 * Consistency verifier for debugging purposes. 308 */ 309 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 310 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 311 new InputEventConsistencyVerifier(this, 0) : null; 312 313 public static IWindowSession getWindowSession(Looper mainLooper) { 314 synchronized (mStaticInit) { 315 if (!mInitialized) { 316 try { 317 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 318 sWindowSession = Display.getWindowManager().openSession( 319 imm.getClient(), imm.getInputContext()); 320 mInitialized = true; 321 } catch (RemoteException e) { 322 } 323 } 324 return sWindowSession; 325 } 326 } 327 328 static final class SystemUiVisibilityInfo { 329 int seq; 330 int globalVisibility; 331 int localValue; 332 int localChanges; 333 } 334 335 public ViewRootImpl(Context context) { 336 super(); 337 338 if (MEASURE_LATENCY) { 339 if (lt == null) { 340 lt = new LatencyTimer(100, 1000); 341 } 342 } 343 344 // Initialize the statics when this class is first instantiated. This is 345 // done here instead of in the static block because Zygote does not 346 // allow the spawning of threads. 347 getWindowSession(context.getMainLooper()); 348 349 mThread = Thread.currentThread(); 350 mLocation = new WindowLeaked(null); 351 mLocation.fillInStackTrace(); 352 mWidth = -1; 353 mHeight = -1; 354 mDirty = new Rect(); 355 mTempRect = new Rect(); 356 mVisRect = new Rect(); 357 mWinFrame = new Rect(); 358 mWindow = new W(this); 359 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 360 mInputMethodCallback = new InputMethodCallback(this); 361 mViewVisibility = View.GONE; 362 mTransparentRegion = new Region(); 363 mPreviousTransparentRegion = new Region(); 364 mFirst = true; // true for the first time the view is added 365 mAdded = false; 366 mAccessibilityManager = AccessibilityManager.getInstance(context); 367 mAccessibilityInteractionConnectionManager = 368 new AccessibilityInteractionConnectionManager(); 369 mAccessibilityManager.addAccessibilityStateChangeListener( 370 mAccessibilityInteractionConnectionManager); 371 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 372 mViewConfiguration = ViewConfiguration.get(context); 373 mDensity = context.getResources().getDisplayMetrics().densityDpi; 374 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 375 mProfileRendering = Boolean.parseBoolean( 376 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 377 mChoreographer = Choreographer.getInstance(); 378 } 379 380 public static void addFirstDrawHandler(Runnable callback) { 381 synchronized (sFirstDrawHandlers) { 382 if (!sFirstDrawComplete) { 383 sFirstDrawHandlers.add(callback); 384 } 385 } 386 } 387 388 public static void addConfigCallback(ComponentCallbacks callback) { 389 synchronized (sConfigCallbacks) { 390 sConfigCallbacks.add(callback); 391 } 392 } 393 394 // FIXME for perf testing only 395 private boolean mProfile = false; 396 397 /** 398 * Call this to profile the next traversal call. 399 * FIXME for perf testing only. Remove eventually 400 */ 401 public void profile() { 402 mProfile = true; 403 } 404 405 /** 406 * Indicates whether we are in touch mode. Calling this method triggers an IPC 407 * call and should be avoided whenever possible. 408 * 409 * @return True, if the device is in touch mode, false otherwise. 410 * 411 * @hide 412 */ 413 static boolean isInTouchMode() { 414 if (mInitialized) { 415 try { 416 return sWindowSession.getInTouchMode(); 417 } catch (RemoteException e) { 418 } 419 } 420 return false; 421 } 422 423 /** 424 * We have one child 425 */ 426 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 427 synchronized (this) { 428 if (mView == null) { 429 mChoreographer.addOnDrawListener(this); 430 431 mView = view; 432 mFallbackEventHandler.setView(view); 433 mWindowAttributes.copyFrom(attrs); 434 attrs = mWindowAttributes; 435 436 if (view instanceof RootViewSurfaceTaker) { 437 mSurfaceHolderCallback = 438 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 439 if (mSurfaceHolderCallback != null) { 440 mSurfaceHolder = new TakenSurfaceHolder(); 441 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 442 } 443 } 444 445 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 446 mTranslator = compatibilityInfo.getTranslator(); 447 448 // If the application owns the surface, don't enable hardware acceleration 449 if (mSurfaceHolder == null) { 450 enableHardwareAcceleration(attrs); 451 } 452 453 boolean restore = false; 454 if (mTranslator != null) { 455 mSurface.setCompatibilityTranslator(mTranslator); 456 restore = true; 457 attrs.backup(); 458 mTranslator.translateWindowLayout(attrs); 459 } 460 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 461 462 if (!compatibilityInfo.supportsScreen()) { 463 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 464 mLastInCompatMode = true; 465 } 466 467 mSoftInputMode = attrs.softInputMode; 468 mWindowAttributesChanged = true; 469 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 470 mAttachInfo.mRootView = view; 471 mAttachInfo.mScalingRequired = mTranslator != null; 472 mAttachInfo.mApplicationScale = 473 mTranslator == null ? 1.0f : mTranslator.applicationScale; 474 if (panelParentView != null) { 475 mAttachInfo.mPanelParentWindowToken 476 = panelParentView.getApplicationWindowToken(); 477 } 478 mAdded = true; 479 int res; /* = WindowManagerImpl.ADD_OKAY; */ 480 481 // Schedule the first layout -before- adding to the window 482 // manager, to make sure we do the relayout before receiving 483 // any other events from the system. 484 requestLayout(); 485 if ((mWindowAttributes.inputFeatures 486 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 487 mInputChannel = new InputChannel(); 488 } 489 try { 490 mOrigWindowType = mWindowAttributes.type; 491 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 492 getHostVisibility(), mAttachInfo.mContentInsets, 493 mInputChannel); 494 } catch (RemoteException e) { 495 mAdded = false; 496 mView = null; 497 mAttachInfo.mRootView = null; 498 mInputChannel = null; 499 mFallbackEventHandler.setView(null); 500 unscheduleTraversals(); 501 throw new RuntimeException("Adding window failed", e); 502 } finally { 503 if (restore) { 504 attrs.restore(); 505 } 506 } 507 508 if (mTranslator != null) { 509 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 510 } 511 mPendingContentInsets.set(mAttachInfo.mContentInsets); 512 mPendingVisibleInsets.set(0, 0, 0, 0); 513 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 514 if (res < WindowManagerImpl.ADD_OKAY) { 515 mView = null; 516 mAttachInfo.mRootView = null; 517 mAdded = false; 518 mFallbackEventHandler.setView(null); 519 unscheduleTraversals(); 520 switch (res) { 521 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 522 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 523 throw new WindowManagerImpl.BadTokenException( 524 "Unable to add window -- token " + attrs.token 525 + " is not valid; is your activity running?"); 526 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 527 throw new WindowManagerImpl.BadTokenException( 528 "Unable to add window -- token " + attrs.token 529 + " is not for an application"); 530 case WindowManagerImpl.ADD_APP_EXITING: 531 throw new WindowManagerImpl.BadTokenException( 532 "Unable to add window -- app for token " + attrs.token 533 + " is exiting"); 534 case WindowManagerImpl.ADD_DUPLICATE_ADD: 535 throw new WindowManagerImpl.BadTokenException( 536 "Unable to add window -- window " + mWindow 537 + " has already been added"); 538 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 539 // Silently ignore -- we would have just removed it 540 // right away, anyway. 541 return; 542 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 543 throw new WindowManagerImpl.BadTokenException( 544 "Unable to add window " + mWindow + 545 " -- another window of this type already exists"); 546 case WindowManagerImpl.ADD_PERMISSION_DENIED: 547 throw new WindowManagerImpl.BadTokenException( 548 "Unable to add window " + mWindow + 549 " -- permission denied for this window type"); 550 } 551 throw new RuntimeException( 552 "Unable to add window -- unknown error code " + res); 553 } 554 555 if (view instanceof RootViewSurfaceTaker) { 556 mInputQueueCallback = 557 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 558 } 559 if (mInputChannel != null) { 560 if (mInputQueueCallback != null) { 561 mInputQueue = new InputQueue(mInputChannel); 562 mInputQueueCallback.onInputQueueCreated(mInputQueue); 563 } else { 564 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 565 Looper.myLooper()); 566 } 567 } 568 569 view.assignParent(this); 570 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 571 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 572 573 if (mAccessibilityManager.isEnabled()) { 574 mAccessibilityInteractionConnectionManager.ensureConnection(); 575 } 576 } 577 } 578 } 579 580 void destroyHardwareResources() { 581 if (mAttachInfo.mHardwareRenderer != null) { 582 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 583 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 584 } 585 mAttachInfo.mHardwareRenderer.destroy(false); 586 } 587 } 588 589 void terminateHardwareResources() { 590 if (mAttachInfo.mHardwareRenderer != null) { 591 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 592 mAttachInfo.mHardwareRenderer.destroy(false); 593 } 594 } 595 596 void destroyHardwareLayers() { 597 if (mThread != Thread.currentThread()) { 598 if (mAttachInfo.mHardwareRenderer != null && 599 mAttachInfo.mHardwareRenderer.isEnabled()) { 600 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 601 } 602 } else { 603 if (mAttachInfo.mHardwareRenderer != null && 604 mAttachInfo.mHardwareRenderer.isEnabled()) { 605 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 606 } 607 } 608 } 609 610 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 611 mAttachInfo.mHardwareAccelerated = false; 612 mAttachInfo.mHardwareAccelerationRequested = false; 613 614 // Don't enable hardware acceleration when the application is in compatibility mode 615 if (mTranslator != null) return; 616 617 // Try to enable hardware acceleration if requested 618 final boolean hardwareAccelerated = 619 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 620 621 if (hardwareAccelerated) { 622 if (!HardwareRenderer.isAvailable()) { 623 return; 624 } 625 626 // Persistent processes (including the system) should not do 627 // accelerated rendering on low-end devices. In that case, 628 // sRendererDisabled will be set. In addition, the system process 629 // itself should never do accelerated rendering. In that case, both 630 // sRendererDisabled and sSystemRendererDisabled are set. When 631 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 632 // can be used by code on the system process to escape that and enable 633 // HW accelerated drawing. (This is basically for the lock screen.) 634 635 final boolean fakeHwAccelerated = (attrs.privateFlags & 636 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 637 final boolean forceHwAccelerated = (attrs.privateFlags & 638 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 639 640 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 641 && forceHwAccelerated)) { 642 // Don't enable hardware acceleration when we're not on the main thread 643 if (!HardwareRenderer.sSystemRendererDisabled 644 && Looper.getMainLooper() != Looper.myLooper()) { 645 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 646 + "acceleration outside of the main thread, aborting"); 647 return; 648 } 649 650 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 651 if (mAttachInfo.mHardwareRenderer != null) { 652 mAttachInfo.mHardwareRenderer.destroy(true); 653 } 654 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 655 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 656 = mAttachInfo.mHardwareRenderer != null; 657 } else if (fakeHwAccelerated) { 658 // The window had wanted to use hardware acceleration, but this 659 // is not allowed in its process. By setting this flag, it can 660 // still render as if it was accelerated. This is basically for 661 // the preview windows the window manager shows for launching 662 // applications, so they will look more like the app being launched. 663 mAttachInfo.mHardwareAccelerationRequested = true; 664 } 665 } 666 } 667 668 public View getView() { 669 return mView; 670 } 671 672 final WindowLeaked getLocation() { 673 return mLocation; 674 } 675 676 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 677 synchronized (this) { 678 int oldSoftInputMode = mWindowAttributes.softInputMode; 679 // preserve compatible window flag if exists. 680 int compatibleWindowFlag = 681 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 682 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 683 mWindowAttributes.flags |= compatibleWindowFlag; 684 685 if (newView) { 686 mSoftInputMode = attrs.softInputMode; 687 requestLayout(); 688 } 689 // Don't lose the mode we last auto-computed. 690 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 691 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 692 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 693 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 694 | (oldSoftInputMode 695 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 696 } 697 mWindowAttributesChanged = true; 698 scheduleTraversals(); 699 } 700 } 701 702 void handleAppVisibility(boolean visible) { 703 if (mAppVisible != visible) { 704 mAppVisible = visible; 705 scheduleTraversals(); 706 } 707 } 708 709 void handleGetNewSurface() { 710 mNewSurfaceNeeded = true; 711 mFullRedrawNeeded = true; 712 scheduleTraversals(); 713 } 714 715 /** 716 * {@inheritDoc} 717 */ 718 public void requestLayout() { 719 checkThread(); 720 mLayoutRequested = true; 721 scheduleTraversals(); 722 } 723 724 /** 725 * {@inheritDoc} 726 */ 727 public boolean isLayoutRequested() { 728 return mLayoutRequested; 729 } 730 731 public void invalidateChild(View child, Rect dirty) { 732 checkThread(); 733 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 734 if (dirty == null) { 735 // Fast invalidation for GL-enabled applications; GL must redraw everything 736 invalidate(); 737 return; 738 } 739 if (mCurScrollY != 0 || mTranslator != null) { 740 mTempRect.set(dirty); 741 dirty = mTempRect; 742 if (mCurScrollY != 0) { 743 dirty.offset(0, -mCurScrollY); 744 } 745 if (mTranslator != null) { 746 mTranslator.translateRectInAppWindowToScreen(dirty); 747 } 748 if (mAttachInfo.mScalingRequired) { 749 dirty.inset(-1, -1); 750 } 751 } 752 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 753 mAttachInfo.mSetIgnoreDirtyState = true; 754 mAttachInfo.mIgnoreDirtyState = true; 755 } 756 mDirty.union(dirty); 757 if (!mWillDrawSoon) { 758 scheduleTraversals(); 759 } 760 } 761 762 void invalidate() { 763 mDirty.set(0, 0, mWidth, mHeight); 764 scheduleTraversals(); 765 } 766 767 void setStopped(boolean stopped) { 768 if (mStopped != stopped) { 769 mStopped = stopped; 770 if (!stopped) { 771 scheduleTraversals(); 772 } 773 } 774 } 775 776 public ViewParent getParent() { 777 return null; 778 } 779 780 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 781 invalidateChild(null, dirty); 782 return null; 783 } 784 785 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 786 if (child != mView) { 787 throw new RuntimeException("child is not mine, honest!"); 788 } 789 // Note: don't apply scroll offset, because we want to know its 790 // visibility in the virtual canvas being given to the view hierarchy. 791 return r.intersect(0, 0, mWidth, mHeight); 792 } 793 794 public void bringChildToFront(View child) { 795 } 796 797 public void scheduleTraversals() { 798 if (!mTraversalScheduled) { 799 mTraversalScheduled = true; 800 mChoreographer.scheduleDraw(); 801 } 802 } 803 804 public void unscheduleTraversals() { 805 mTraversalScheduled = false; 806 } 807 808 @Override 809 public void onDraw() { 810 if (mTraversalScheduled) { 811 mTraversalScheduled = false; 812 doTraversal(); 813 } 814 } 815 816 int getHostVisibility() { 817 return mAppVisible ? mView.getVisibility() : View.GONE; 818 } 819 820 void disposeResizeBuffer() { 821 if (mResizeBuffer != null) { 822 mResizeBuffer.destroy(); 823 mResizeBuffer = null; 824 } 825 } 826 827 /** 828 * Add LayoutTransition to the list of transitions to be started in the next traversal. 829 * This list will be cleared after the transitions on the list are start()'ed. These 830 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 831 * happens during the layout phase of traversal, which we want to complete before any of the 832 * animations are started (because those animations may side-effect properties that layout 833 * depends upon, like the bounding rectangles of the affected views). So we add the transition 834 * to the list and it is started just prior to starting the drawing phase of traversal. 835 * 836 * @param transition The LayoutTransition to be started on the next traversal. 837 * 838 * @hide 839 */ 840 public void requestTransitionStart(LayoutTransition transition) { 841 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 842 if (mPendingTransitions == null) { 843 mPendingTransitions = new ArrayList<LayoutTransition>(); 844 } 845 mPendingTransitions.add(transition); 846 } 847 } 848 849 private void doTraversal() { 850 doProcessInputEvents(); 851 852 if (mProfile) { 853 Debug.startMethodTracing("ViewAncestor"); 854 } 855 856 final long traversalStartTime; 857 if (ViewDebug.DEBUG_LATENCY) { 858 traversalStartTime = System.nanoTime(); 859 if (mLastTraversalFinishedTimeNanos != 0) { 860 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 861 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 862 + "ms since the last traversals finished."); 863 } else { 864 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 865 } 866 } 867 868 performTraversals(); 869 870 if (ViewDebug.DEBUG_LATENCY) { 871 long now = System.nanoTime(); 872 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 873 + ((now - traversalStartTime) * 0.000001f) 874 + "ms."); 875 mLastTraversalFinishedTimeNanos = now; 876 } 877 878 if (mProfile) { 879 Debug.stopMethodTracing(); 880 mProfile = false; 881 } 882 } 883 884 private void performTraversals() { 885 // cache mView since it is used so much below... 886 final View host = mView; 887 888 if (DBG) { 889 System.out.println("======================================"); 890 System.out.println("performTraversals"); 891 host.debug(); 892 } 893 894 if (host == null || !mAdded) 895 return; 896 897 mWillDrawSoon = true; 898 boolean windowSizeMayChange = false; 899 boolean newSurface = false; 900 boolean surfaceChanged = false; 901 WindowManager.LayoutParams lp = mWindowAttributes; 902 903 int desiredWindowWidth; 904 int desiredWindowHeight; 905 int childWidthMeasureSpec; 906 int childHeightMeasureSpec; 907 908 final View.AttachInfo attachInfo = mAttachInfo; 909 910 final int viewVisibility = getHostVisibility(); 911 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 912 || mNewSurfaceNeeded; 913 914 WindowManager.LayoutParams params = null; 915 if (mWindowAttributesChanged) { 916 mWindowAttributesChanged = false; 917 surfaceChanged = true; 918 params = lp; 919 } 920 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 921 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 922 params = lp; 923 mFullRedrawNeeded = true; 924 mLayoutRequested = true; 925 if (mLastInCompatMode) { 926 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 927 mLastInCompatMode = false; 928 } else { 929 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 930 mLastInCompatMode = true; 931 } 932 } 933 934 mWindowAttributesChangesFlag = 0; 935 936 Rect frame = mWinFrame; 937 if (mFirst) { 938 mFullRedrawNeeded = true; 939 mLayoutRequested = true; 940 941 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 942 // NOTE -- system code, won't try to do compat mode. 943 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 944 Point size = new Point(); 945 disp.getRealSize(size); 946 desiredWindowWidth = size.x; 947 desiredWindowHeight = size.y; 948 } else { 949 DisplayMetrics packageMetrics = 950 mView.getContext().getResources().getDisplayMetrics(); 951 desiredWindowWidth = packageMetrics.widthPixels; 952 desiredWindowHeight = packageMetrics.heightPixels; 953 } 954 955 // For the very first time, tell the view hierarchy that it 956 // is attached to the window. Note that at this point the surface 957 // object is not initialized to its backing store, but soon it 958 // will be (assuming the window is visible). 959 attachInfo.mSurface = mSurface; 960 // We used to use the following condition to choose 32 bits drawing caches: 961 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 962 // However, windows are now always 32 bits by default, so choose 32 bits 963 attachInfo.mUse32BitDrawingCache = true; 964 attachInfo.mHasWindowFocus = false; 965 attachInfo.mWindowVisibility = viewVisibility; 966 attachInfo.mRecomputeGlobalAttributes = false; 967 attachInfo.mKeepScreenOn = false; 968 attachInfo.mSystemUiVisibility = 0; 969 viewVisibilityChanged = false; 970 mLastConfiguration.setTo(host.getResources().getConfiguration()); 971 host.dispatchAttachedToWindow(attachInfo, 0); 972 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 973 974 host.fitSystemWindows(mAttachInfo.mContentInsets); 975 976 } else { 977 desiredWindowWidth = frame.width(); 978 desiredWindowHeight = frame.height(); 979 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 980 if (DEBUG_ORIENTATION) Log.v(TAG, 981 "View " + host + " resized to: " + frame); 982 mFullRedrawNeeded = true; 983 mLayoutRequested = true; 984 windowSizeMayChange = true; 985 } 986 } 987 988 if (viewVisibilityChanged) { 989 attachInfo.mWindowVisibility = viewVisibility; 990 host.dispatchWindowVisibilityChanged(viewVisibility); 991 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 992 destroyHardwareResources(); 993 } 994 if (viewVisibility == View.GONE) { 995 // After making a window gone, we will count it as being 996 // shown for the first time the next time it gets focus. 997 mHasHadWindowFocus = false; 998 } 999 } 1000 1001 boolean insetsChanged = false; 1002 1003 if (mLayoutRequested && !mStopped) { 1004 // Execute enqueued actions on every layout in case a view that was detached 1005 // enqueued an action after being detached 1006 getRunQueue().executeActions(attachInfo.mHandler); 1007 1008 final Resources res = mView.getContext().getResources(); 1009 1010 if (mFirst) { 1011 // make sure touch mode code executes by setting cached value 1012 // to opposite of the added touch mode. 1013 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1014 ensureTouchModeLocally(mAddedTouchMode); 1015 } else { 1016 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1017 insetsChanged = true; 1018 } 1019 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1020 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1021 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1022 + mAttachInfo.mVisibleInsets); 1023 } 1024 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1025 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1026 windowSizeMayChange = true; 1027 1028 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1029 // NOTE -- system code, won't try to do compat mode. 1030 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1031 Point size = new Point(); 1032 disp.getRealSize(size); 1033 desiredWindowWidth = size.x; 1034 desiredWindowHeight = size.y; 1035 } else { 1036 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1037 desiredWindowWidth = packageMetrics.widthPixels; 1038 desiredWindowHeight = packageMetrics.heightPixels; 1039 } 1040 } 1041 } 1042 1043 // Ask host how big it wants to be 1044 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1045 "Measuring " + host + " in display " + desiredWindowWidth 1046 + "x" + desiredWindowHeight + "..."); 1047 1048 boolean goodMeasure = false; 1049 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1050 // On large screens, we don't want to allow dialogs to just 1051 // stretch to fill the entire width of the screen to display 1052 // one line of text. First try doing the layout at a smaller 1053 // size to see if it will fit. 1054 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1055 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1056 int baseSize = 0; 1057 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1058 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1059 } 1060 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1061 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1062 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1063 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1064 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1065 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1066 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1067 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1068 goodMeasure = true; 1069 } else { 1070 // Didn't fit in that size... try expanding a bit. 1071 baseSize = (baseSize+desiredWindowWidth)/2; 1072 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1073 + baseSize); 1074 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1075 host.measure(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 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1080 goodMeasure = true; 1081 } 1082 } 1083 } 1084 } 1085 1086 if (!goodMeasure) { 1087 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1088 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1089 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1090 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1091 windowSizeMayChange = true; 1092 } 1093 } 1094 1095 if (DBG) { 1096 System.out.println("======================================"); 1097 System.out.println("performTraversals -- after measure"); 1098 host.debug(); 1099 } 1100 } 1101 1102 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1103 //Log.i(TAG, "Computing view hierarchy attributes!"); 1104 attachInfo.mRecomputeGlobalAttributes = false; 1105 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1106 int oldVis = attachInfo.mSystemUiVisibility; 1107 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1108 attachInfo.mKeepScreenOn = false; 1109 attachInfo.mSystemUiVisibility = 0; 1110 attachInfo.mHasSystemUiListeners = false; 1111 host.dispatchCollectViewAttributes(0); 1112 if (attachInfo.mKeepScreenOn != oldScreenOn 1113 || attachInfo.mSystemUiVisibility != oldVis 1114 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1115 params = lp; 1116 } 1117 } 1118 if (attachInfo.mForceReportNewAttributes) { 1119 attachInfo.mForceReportNewAttributes = false; 1120 params = lp; 1121 } 1122 1123 if (mFirst || attachInfo.mViewVisibilityChanged) { 1124 attachInfo.mViewVisibilityChanged = false; 1125 int resizeMode = mSoftInputMode & 1126 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1127 // If we are in auto resize mode, then we need to determine 1128 // what mode to use now. 1129 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1130 final int N = attachInfo.mScrollContainers.size(); 1131 for (int i=0; i<N; i++) { 1132 if (attachInfo.mScrollContainers.get(i).isShown()) { 1133 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1134 } 1135 } 1136 if (resizeMode == 0) { 1137 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1138 } 1139 if ((lp.softInputMode & 1140 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1141 lp.softInputMode = (lp.softInputMode & 1142 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1143 resizeMode; 1144 params = lp; 1145 } 1146 } 1147 } 1148 1149 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1150 if (!PixelFormat.formatHasAlpha(params.format)) { 1151 params.format = PixelFormat.TRANSLUCENT; 1152 } 1153 } 1154 1155 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1156 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1157 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1158 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1159 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1160 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1161 1162 final boolean computesInternalInsets = 1163 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1164 1165 boolean insetsPending = false; 1166 int relayoutResult = 0; 1167 1168 if (mFirst || windowShouldResize || insetsChanged || 1169 viewVisibilityChanged || params != null) { 1170 1171 if (viewVisibility == View.VISIBLE) { 1172 // If this window is giving internal insets to the window 1173 // manager, and it is being added or changing its visibility, 1174 // then we want to first give the window manager "fake" 1175 // insets to cause it to effectively ignore the content of 1176 // the window during layout. This avoids it briefly causing 1177 // other windows to resize/move based on the raw frame of the 1178 // window, waiting until we can finish laying out this window 1179 // and get back to the window manager with the ultimately 1180 // computed insets. 1181 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1182 } 1183 1184 if (mSurfaceHolder != null) { 1185 mSurfaceHolder.mSurfaceLock.lock(); 1186 mDrawingAllowed = true; 1187 } 1188 1189 boolean hwInitialized = false; 1190 boolean contentInsetsChanged = false; 1191 boolean visibleInsetsChanged; 1192 boolean hadSurface = mSurface.isValid(); 1193 1194 try { 1195 int fl = 0; 1196 if (params != null) { 1197 fl = params.flags; 1198 if (attachInfo.mKeepScreenOn) { 1199 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1200 } 1201 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1202 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1203 } 1204 if (DEBUG_LAYOUT) { 1205 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1206 host.getMeasuredHeight() + ", params=" + params); 1207 } 1208 1209 final int surfaceGenerationId = mSurface.getGenerationId(); 1210 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1211 1212 if (params != null) { 1213 params.flags = fl; 1214 } 1215 1216 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1217 + " content=" + mPendingContentInsets.toShortString() 1218 + " visible=" + mPendingVisibleInsets.toShortString() 1219 + " surface=" + mSurface); 1220 1221 if (mPendingConfiguration.seq != 0) { 1222 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1223 + mPendingConfiguration); 1224 updateConfiguration(mPendingConfiguration, !mFirst); 1225 mPendingConfiguration.seq = 0; 1226 } 1227 1228 contentInsetsChanged = !mPendingContentInsets.equals( 1229 mAttachInfo.mContentInsets); 1230 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1231 mAttachInfo.mVisibleInsets); 1232 if (contentInsetsChanged) { 1233 if (mWidth > 0 && mHeight > 0 && 1234 mSurface != null && mSurface.isValid() && 1235 !mAttachInfo.mTurnOffWindowResizeAnim && 1236 mAttachInfo.mHardwareRenderer != null && 1237 mAttachInfo.mHardwareRenderer.isEnabled() && 1238 mAttachInfo.mHardwareRenderer.validate() && 1239 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1240 1241 disposeResizeBuffer(); 1242 1243 boolean completed = false; 1244 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1245 HardwareCanvas layerCanvas = null; 1246 try { 1247 if (mResizeBuffer == null) { 1248 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1249 mWidth, mHeight, false); 1250 } else if (mResizeBuffer.getWidth() != mWidth || 1251 mResizeBuffer.getHeight() != mHeight) { 1252 mResizeBuffer.resize(mWidth, mHeight); 1253 } 1254 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1255 layerCanvas.setViewport(mWidth, mHeight); 1256 layerCanvas.onPreDraw(null); 1257 final int restoreCount = layerCanvas.save(); 1258 1259 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1260 1261 int yoff; 1262 final boolean scrolling = mScroller != null 1263 && mScroller.computeScrollOffset(); 1264 if (scrolling) { 1265 yoff = mScroller.getCurrY(); 1266 mScroller.abortAnimation(); 1267 } else { 1268 yoff = mScrollY; 1269 } 1270 1271 layerCanvas.translate(0, -yoff); 1272 if (mTranslator != null) { 1273 mTranslator.translateCanvas(layerCanvas); 1274 } 1275 1276 mView.draw(layerCanvas); 1277 1278 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1279 mResizeBufferDuration = mView.getResources().getInteger( 1280 com.android.internal.R.integer.config_mediumAnimTime); 1281 completed = true; 1282 1283 layerCanvas.restoreToCount(restoreCount); 1284 } catch (OutOfMemoryError e) { 1285 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1286 } finally { 1287 if (layerCanvas != null) { 1288 layerCanvas.onPostDraw(); 1289 } 1290 if (mResizeBuffer != null) { 1291 mResizeBuffer.end(hwRendererCanvas); 1292 if (!completed) { 1293 mResizeBuffer.destroy(); 1294 mResizeBuffer = null; 1295 } 1296 } 1297 } 1298 } 1299 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1300 host.fitSystemWindows(mAttachInfo.mContentInsets); 1301 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1302 + mAttachInfo.mContentInsets); 1303 } 1304 if (visibleInsetsChanged) { 1305 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1306 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1307 + mAttachInfo.mVisibleInsets); 1308 } 1309 1310 if (!hadSurface) { 1311 if (mSurface.isValid()) { 1312 // If we are creating a new surface, then we need to 1313 // completely redraw it. Also, when we get to the 1314 // point of drawing it we will hold off and schedule 1315 // a new traversal instead. This is so we can tell the 1316 // window manager about all of the windows being displayed 1317 // before actually drawing them, so it can display then 1318 // all at once. 1319 newSurface = true; 1320 mFullRedrawNeeded = true; 1321 mPreviousTransparentRegion.setEmpty(); 1322 1323 if (mAttachInfo.mHardwareRenderer != null) { 1324 try { 1325 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1326 } catch (Surface.OutOfResourcesException e) { 1327 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1328 try { 1329 if (!sWindowSession.outOfMemory(mWindow)) { 1330 Slog.w(TAG, "No processes killed for memory; killing self"); 1331 Process.killProcess(Process.myPid()); 1332 } 1333 } catch (RemoteException ex) { 1334 } 1335 mLayoutRequested = true; // ask wm for a new surface next time. 1336 return; 1337 } 1338 } 1339 } 1340 } else if (!mSurface.isValid()) { 1341 // If the surface has been removed, then reset the scroll 1342 // positions. 1343 mLastScrolledFocus = null; 1344 mScrollY = mCurScrollY = 0; 1345 if (mScroller != null) { 1346 mScroller.abortAnimation(); 1347 } 1348 disposeResizeBuffer(); 1349 // Our surface is gone 1350 if (mAttachInfo.mHardwareRenderer != null && 1351 mAttachInfo.mHardwareRenderer.isEnabled()) { 1352 mAttachInfo.mHardwareRenderer.destroy(true); 1353 } 1354 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1355 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1356 mFullRedrawNeeded = true; 1357 try { 1358 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1359 } catch (Surface.OutOfResourcesException e) { 1360 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1361 try { 1362 if (!sWindowSession.outOfMemory(mWindow)) { 1363 Slog.w(TAG, "No processes killed for memory; killing self"); 1364 Process.killProcess(Process.myPid()); 1365 } 1366 } catch (RemoteException ex) { 1367 } 1368 mLayoutRequested = true; // ask wm for a new surface next time. 1369 return; 1370 } 1371 } 1372 } catch (RemoteException e) { 1373 } 1374 1375 if (DEBUG_ORIENTATION) Log.v( 1376 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1377 1378 attachInfo.mWindowLeft = frame.left; 1379 attachInfo.mWindowTop = frame.top; 1380 1381 // !!FIXME!! This next section handles the case where we did not get the 1382 // window size we asked for. We should avoid this by getting a maximum size from 1383 // the window session beforehand. 1384 mWidth = frame.width(); 1385 mHeight = frame.height(); 1386 1387 if (mSurfaceHolder != null) { 1388 // The app owns the surface; tell it about what is going on. 1389 if (mSurface.isValid()) { 1390 // XXX .copyFrom() doesn't work! 1391 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1392 mSurfaceHolder.mSurface = mSurface; 1393 } 1394 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1395 mSurfaceHolder.mSurfaceLock.unlock(); 1396 if (mSurface.isValid()) { 1397 if (!hadSurface) { 1398 mSurfaceHolder.ungetCallbacks(); 1399 1400 mIsCreating = true; 1401 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1402 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1403 if (callbacks != null) { 1404 for (SurfaceHolder.Callback c : callbacks) { 1405 c.surfaceCreated(mSurfaceHolder); 1406 } 1407 } 1408 surfaceChanged = true; 1409 } 1410 if (surfaceChanged) { 1411 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1412 lp.format, mWidth, mHeight); 1413 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1414 if (callbacks != null) { 1415 for (SurfaceHolder.Callback c : callbacks) { 1416 c.surfaceChanged(mSurfaceHolder, lp.format, 1417 mWidth, mHeight); 1418 } 1419 } 1420 } 1421 mIsCreating = false; 1422 } else if (hadSurface) { 1423 mSurfaceHolder.ungetCallbacks(); 1424 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1425 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1426 if (callbacks != null) { 1427 for (SurfaceHolder.Callback c : callbacks) { 1428 c.surfaceDestroyed(mSurfaceHolder); 1429 } 1430 } 1431 mSurfaceHolder.mSurfaceLock.lock(); 1432 try { 1433 mSurfaceHolder.mSurface = new Surface(); 1434 } finally { 1435 mSurfaceHolder.mSurfaceLock.unlock(); 1436 } 1437 } 1438 } 1439 1440 if (mAttachInfo.mHardwareRenderer != null && 1441 mAttachInfo.mHardwareRenderer.isEnabled()) { 1442 if (hwInitialized || windowShouldResize || 1443 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1444 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1445 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1446 if (!hwInitialized) { 1447 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1448 } 1449 } 1450 } 1451 1452 if (!mStopped) { 1453 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1454 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1455 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1456 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1457 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1458 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1459 1460 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1461 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1462 + " mHeight=" + mHeight 1463 + " measuredHeight=" + host.getMeasuredHeight() 1464 + " coveredInsetsChanged=" + contentInsetsChanged); 1465 1466 // Ask host how big it wants to be 1467 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1468 1469 // Implementation of weights from WindowManager.LayoutParams 1470 // We just grow the dimensions as needed and re-measure if 1471 // needs be 1472 int width = host.getMeasuredWidth(); 1473 int height = host.getMeasuredHeight(); 1474 boolean measureAgain = false; 1475 1476 if (lp.horizontalWeight > 0.0f) { 1477 width += (int) ((mWidth - width) * lp.horizontalWeight); 1478 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1479 MeasureSpec.EXACTLY); 1480 measureAgain = true; 1481 } 1482 if (lp.verticalWeight > 0.0f) { 1483 height += (int) ((mHeight - height) * lp.verticalWeight); 1484 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1485 MeasureSpec.EXACTLY); 1486 measureAgain = true; 1487 } 1488 1489 if (measureAgain) { 1490 if (DEBUG_LAYOUT) Log.v(TAG, 1491 "And hey let's measure once more: width=" + width 1492 + " height=" + height); 1493 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1494 } 1495 1496 mLayoutRequested = true; 1497 } 1498 } 1499 } 1500 1501 final boolean didLayout = mLayoutRequested && !mStopped; 1502 boolean triggerGlobalLayoutListener = didLayout 1503 || attachInfo.mRecomputeGlobalAttributes; 1504 if (didLayout) { 1505 mLayoutRequested = false; 1506 mScrollMayChange = true; 1507 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1508 TAG, "Laying out " + host + " to (" + 1509 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1510 long startTime = 0L; 1511 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1512 startTime = SystemClock.elapsedRealtime(); 1513 } 1514 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1515 1516 if (false && ViewDebug.consistencyCheckEnabled) { 1517 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1518 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1519 + "please refer to the logs with the tag " 1520 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1521 } 1522 } 1523 1524 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1525 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1526 } 1527 1528 // By this point all views have been sized and positionned 1529 // We can compute the transparent area 1530 1531 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1532 // start out transparent 1533 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1534 host.getLocationInWindow(mTmpLocation); 1535 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1536 mTmpLocation[0] + host.mRight - host.mLeft, 1537 mTmpLocation[1] + host.mBottom - host.mTop); 1538 1539 host.gatherTransparentRegion(mTransparentRegion); 1540 if (mTranslator != null) { 1541 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1542 } 1543 1544 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1545 mPreviousTransparentRegion.set(mTransparentRegion); 1546 // reconfigure window manager 1547 try { 1548 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1549 } catch (RemoteException e) { 1550 } 1551 } 1552 } 1553 1554 if (DBG) { 1555 System.out.println("======================================"); 1556 System.out.println("performTraversals -- after setFrame"); 1557 host.debug(); 1558 } 1559 } 1560 1561 if (triggerGlobalLayoutListener) { 1562 attachInfo.mRecomputeGlobalAttributes = false; 1563 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1564 1565 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1566 postSendWindowContentChangedCallback(); 1567 } 1568 } 1569 1570 if (computesInternalInsets) { 1571 // Clear the original insets. 1572 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1573 insets.reset(); 1574 1575 // Compute new insets in place. 1576 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1577 1578 // Tell the window manager. 1579 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1580 mLastGivenInsets.set(insets); 1581 1582 // Translate insets to screen coordinates if needed. 1583 final Rect contentInsets; 1584 final Rect visibleInsets; 1585 final Region touchableRegion; 1586 if (mTranslator != null) { 1587 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1588 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1589 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1590 } else { 1591 contentInsets = insets.contentInsets; 1592 visibleInsets = insets.visibleInsets; 1593 touchableRegion = insets.touchableRegion; 1594 } 1595 1596 try { 1597 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1598 contentInsets, visibleInsets, touchableRegion); 1599 } catch (RemoteException e) { 1600 } 1601 } 1602 } 1603 1604 if (mFirst) { 1605 // handle first focus request 1606 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1607 + mView.hasFocus()); 1608 if (mView != null) { 1609 if (!mView.hasFocus()) { 1610 mView.requestFocus(View.FOCUS_FORWARD); 1611 mFocusedView = mRealFocusedView = mView.findFocus(); 1612 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1613 + mFocusedView); 1614 } else { 1615 mRealFocusedView = mView.findFocus(); 1616 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1617 + mRealFocusedView); 1618 } 1619 } 1620 } 1621 1622 mFirst = false; 1623 mWillDrawSoon = false; 1624 mNewSurfaceNeeded = false; 1625 mViewVisibility = viewVisibility; 1626 1627 if (mAttachInfo.mHasWindowFocus) { 1628 final boolean imTarget = WindowManager.LayoutParams 1629 .mayUseInputMethod(mWindowAttributes.flags); 1630 if (imTarget != mLastWasImTarget) { 1631 mLastWasImTarget = imTarget; 1632 InputMethodManager imm = InputMethodManager.peekInstance(); 1633 if (imm != null && imTarget) { 1634 imm.startGettingWindowFocus(mView); 1635 imm.onWindowFocus(mView, mView.findFocus(), 1636 mWindowAttributes.softInputMode, 1637 !mHasHadWindowFocus, mWindowAttributes.flags); 1638 } 1639 } 1640 } 1641 1642 // Remember if we must report the next draw. 1643 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1644 mReportNextDraw = true; 1645 } 1646 1647 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1648 viewVisibility != View.VISIBLE; 1649 1650 if (!cancelDraw && !newSurface) { 1651 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1652 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1653 mPendingTransitions.get(i).startChangingAnimations(); 1654 } 1655 mPendingTransitions.clear(); 1656 } 1657 1658 performDraw(); 1659 } else { 1660 // End any pending transitions on this non-visible window 1661 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1662 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1663 mPendingTransitions.get(i).endChangingAnimations(); 1664 } 1665 mPendingTransitions.clear(); 1666 } 1667 1668 if (viewVisibility == View.VISIBLE) { 1669 // Try again 1670 scheduleTraversals(); 1671 } 1672 } 1673 } 1674 1675 public void requestTransparentRegion(View child) { 1676 // the test below should not fail unless someone is messing with us 1677 checkThread(); 1678 if (mView == child) { 1679 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1680 // Need to make sure we re-evaluate the window attributes next 1681 // time around, to ensure the window has the correct format. 1682 mWindowAttributesChanged = true; 1683 mWindowAttributesChangesFlag = 0; 1684 requestLayout(); 1685 } 1686 } 1687 1688 /** 1689 * Figures out the measure spec for the root view in a window based on it's 1690 * layout params. 1691 * 1692 * @param windowSize 1693 * The available width or height of the window 1694 * 1695 * @param rootDimension 1696 * The layout params for one dimension (width or height) of the 1697 * window. 1698 * 1699 * @return The measure spec to use to measure the root view. 1700 */ 1701 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1702 int measureSpec; 1703 switch (rootDimension) { 1704 1705 case ViewGroup.LayoutParams.MATCH_PARENT: 1706 // Window can't resize. Force root view to be windowSize. 1707 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1708 break; 1709 case ViewGroup.LayoutParams.WRAP_CONTENT: 1710 // Window can resize. Set max size for root view. 1711 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1712 break; 1713 default: 1714 // Window wants to be an exact size. Force root view to be that size. 1715 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1716 break; 1717 } 1718 return measureSpec; 1719 } 1720 1721 int mHardwareYOffset; 1722 int mResizeAlpha; 1723 final Paint mResizePaint = new Paint(); 1724 1725 public void onHardwarePreDraw(HardwareCanvas canvas) { 1726 canvas.translate(0, -mHardwareYOffset); 1727 } 1728 1729 public void onHardwarePostDraw(HardwareCanvas canvas) { 1730 if (mResizeBuffer != null) { 1731 mResizePaint.setAlpha(mResizeAlpha); 1732 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1733 } 1734 } 1735 1736 /** 1737 * @hide 1738 */ 1739 void outputDisplayList(View view) { 1740 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1741 DisplayList displayList = view.getDisplayList(); 1742 if (displayList != null) { 1743 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1744 } 1745 } 1746 } 1747 1748 /** 1749 * @see #PROPERTY_PROFILE_RENDERING 1750 */ 1751 private void profileRendering(boolean enabled) { 1752 if (mProfileRendering) { 1753 mRenderProfilingEnabled = enabled; 1754 if (mRenderProfiler == null) { 1755 mRenderProfiler = new Thread(new Runnable() { 1756 @Override 1757 public void run() { 1758 Log.d(TAG, "Starting profiling thread"); 1759 while (mRenderProfilingEnabled) { 1760 mAttachInfo.mHandler.post(new Runnable() { 1761 @Override 1762 public void run() { 1763 mDirty.set(0, 0, mWidth, mHeight); 1764 scheduleTraversals(); 1765 } 1766 }); 1767 try { 1768 // TODO: This should use vsync when we get an API 1769 Thread.sleep(15); 1770 } catch (InterruptedException e) { 1771 Log.d(TAG, "Exiting profiling thread"); 1772 } 1773 } 1774 } 1775 }, "Rendering Profiler"); 1776 mRenderProfiler.start(); 1777 } else { 1778 mRenderProfiler.interrupt(); 1779 mRenderProfiler = null; 1780 } 1781 } 1782 } 1783 1784 /** 1785 * Called from draw() when DEBUG_FPS is enabled 1786 */ 1787 private void trackFPS() { 1788 // Tracks frames per second drawn. First value in a series of draws may be bogus 1789 // because it down not account for the intervening idle time 1790 long nowTime = System.currentTimeMillis(); 1791 if (mFpsStartTime < 0) { 1792 mFpsStartTime = mFpsPrevTime = nowTime; 1793 mFpsNumFrames = 0; 1794 } else { 1795 ++mFpsNumFrames; 1796 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1797 long frameTime = nowTime - mFpsPrevTime; 1798 long totalTime = nowTime - mFpsStartTime; 1799 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1800 mFpsPrevTime = nowTime; 1801 if (totalTime > 1000) { 1802 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1803 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1804 mFpsStartTime = nowTime; 1805 mFpsNumFrames = 0; 1806 } 1807 } 1808 } 1809 1810 private void performDraw() { 1811 final long drawStartTime; 1812 if (ViewDebug.DEBUG_LATENCY) { 1813 drawStartTime = System.nanoTime(); 1814 if (mLastDrawFinishedTimeNanos != 0) { 1815 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 1816 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 1817 + "ms since the last draw finished."); 1818 } else { 1819 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 1820 } 1821 } 1822 1823 final boolean fullRedrawNeeded = mFullRedrawNeeded; 1824 mFullRedrawNeeded = false; 1825 draw(fullRedrawNeeded); 1826 1827 if (ViewDebug.DEBUG_LATENCY) { 1828 long now = System.nanoTime(); 1829 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 1830 + ((now - drawStartTime) * 0.000001f) 1831 + "ms."); 1832 mLastDrawFinishedTimeNanos = now; 1833 } 1834 1835 if (mReportNextDraw) { 1836 mReportNextDraw = false; 1837 1838 if (LOCAL_LOGV) { 1839 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1840 } 1841 if (mSurfaceHolder != null && mSurface.isValid()) { 1842 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1843 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1844 if (callbacks != null) { 1845 for (SurfaceHolder.Callback c : callbacks) { 1846 if (c instanceof SurfaceHolder.Callback2) { 1847 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1848 mSurfaceHolder); 1849 } 1850 } 1851 } 1852 } 1853 try { 1854 sWindowSession.finishDrawing(mWindow); 1855 } catch (RemoteException e) { 1856 } 1857 } 1858 } 1859 1860 private void draw(boolean fullRedrawNeeded) { 1861 Surface surface = mSurface; 1862 if (surface == null || !surface.isValid()) { 1863 return; 1864 } 1865 1866 if (DEBUG_FPS) { 1867 trackFPS(); 1868 } 1869 1870 if (!sFirstDrawComplete) { 1871 synchronized (sFirstDrawHandlers) { 1872 sFirstDrawComplete = true; 1873 final int count = sFirstDrawHandlers.size(); 1874 for (int i = 0; i< count; i++) { 1875 post(sFirstDrawHandlers.get(i)); 1876 } 1877 } 1878 } 1879 1880 scrollToRectOrFocus(null, false); 1881 1882 if (mAttachInfo.mViewScrollChanged) { 1883 mAttachInfo.mViewScrollChanged = false; 1884 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1885 } 1886 1887 int yoff; 1888 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1889 if (animating) { 1890 yoff = mScroller.getCurrY(); 1891 } else { 1892 yoff = mScrollY; 1893 } 1894 if (mCurScrollY != yoff) { 1895 mCurScrollY = yoff; 1896 fullRedrawNeeded = true; 1897 } 1898 1899 final float appScale = mAttachInfo.mApplicationScale; 1900 final boolean scalingRequired = mAttachInfo.mScalingRequired; 1901 1902 int resizeAlpha = 0; 1903 if (mResizeBuffer != null) { 1904 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1905 if (deltaTime < mResizeBufferDuration) { 1906 float amt = deltaTime/(float) mResizeBufferDuration; 1907 amt = mResizeInterpolator.getInterpolation(amt); 1908 animating = true; 1909 resizeAlpha = 255 - (int)(amt*255); 1910 } else { 1911 disposeResizeBuffer(); 1912 } 1913 } 1914 1915 final Rect dirty = mDirty; 1916 if (mSurfaceHolder != null) { 1917 // The app owns the surface, we won't draw. 1918 dirty.setEmpty(); 1919 if (animating) { 1920 if (mScroller != null) { 1921 mScroller.abortAnimation(); 1922 } 1923 disposeResizeBuffer(); 1924 } 1925 return; 1926 } 1927 1928 if (fullRedrawNeeded) { 1929 mAttachInfo.mIgnoreDirtyState = true; 1930 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1931 } 1932 1933 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1934 Log.v(TAG, "Draw " + mView + "/" 1935 + mWindowAttributes.getTitle() 1936 + ": dirty={" + dirty.left + "," + dirty.top 1937 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1938 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1939 appScale + ", width=" + mWidth + ", height=" + mHeight); 1940 } 1941 1942 if (!dirty.isEmpty() || mIsAnimating) { 1943 if (mAttachInfo.mHardwareRenderer != null 1944 && mAttachInfo.mHardwareRenderer.isEnabled()) { 1945 // Draw with hardware renderer. 1946 mIsAnimating = false; 1947 mHardwareYOffset = yoff; 1948 mResizeAlpha = resizeAlpha; 1949 1950 mCurrentDirty.set(dirty); 1951 mCurrentDirty.union(mPreviousDirty); 1952 mPreviousDirty.set(dirty); 1953 dirty.setEmpty(); 1954 1955 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, 1956 animating ? null : mCurrentDirty)) { 1957 mPreviousDirty.set(0, 0, mWidth, mHeight); 1958 } 1959 } else { 1960 // Draw with software renderer. 1961 Canvas canvas; 1962 try { 1963 int left = dirty.left; 1964 int top = dirty.top; 1965 int right = dirty.right; 1966 int bottom = dirty.bottom; 1967 1968 final long lockCanvasStartTime; 1969 if (ViewDebug.DEBUG_LATENCY) { 1970 lockCanvasStartTime = System.nanoTime(); 1971 } 1972 1973 canvas = mSurface.lockCanvas(dirty); 1974 1975 if (ViewDebug.DEBUG_LATENCY) { 1976 long now = System.nanoTime(); 1977 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 1978 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 1979 } 1980 1981 if (left != dirty.left || top != dirty.top || right != dirty.right || 1982 bottom != dirty.bottom) { 1983 mAttachInfo.mIgnoreDirtyState = true; 1984 } 1985 1986 // TODO: Do this in native 1987 canvas.setDensity(mDensity); 1988 } catch (Surface.OutOfResourcesException e) { 1989 Log.e(TAG, "OutOfResourcesException locking surface", e); 1990 try { 1991 if (!sWindowSession.outOfMemory(mWindow)) { 1992 Slog.w(TAG, "No processes killed for memory; killing self"); 1993 Process.killProcess(Process.myPid()); 1994 } 1995 } catch (RemoteException ex) { 1996 } 1997 mLayoutRequested = true; // ask wm for a new surface next time. 1998 return; 1999 } catch (IllegalArgumentException e) { 2000 Log.e(TAG, "IllegalArgumentException locking surface", e); 2001 // Don't assume this is due to out of memory, it could be 2002 // something else, and if it is something else then we could 2003 // kill stuff (or ourself) for no reason. 2004 mLayoutRequested = true; // ask wm for a new surface next time. 2005 return; 2006 } 2007 2008 try { 2009 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2010 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2011 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2012 //canvas.drawARGB(255, 255, 0, 0); 2013 } 2014 2015 long startTime = 0L; 2016 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2017 startTime = SystemClock.elapsedRealtime(); 2018 } 2019 2020 // If this bitmap's format includes an alpha channel, we 2021 // need to clear it before drawing so that the child will 2022 // properly re-composite its drawing on a transparent 2023 // background. This automatically respects the clip/dirty region 2024 // or 2025 // If we are applying an offset, we need to clear the area 2026 // where the offset doesn't appear to avoid having garbage 2027 // left in the blank areas. 2028 if (!canvas.isOpaque() || yoff != 0) { 2029 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2030 } 2031 2032 dirty.setEmpty(); 2033 mIsAnimating = false; 2034 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2035 mView.mPrivateFlags |= View.DRAWN; 2036 2037 if (DEBUG_DRAW) { 2038 Context cxt = mView.getContext(); 2039 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2040 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2041 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2042 } 2043 try { 2044 canvas.translate(0, -yoff); 2045 if (mTranslator != null) { 2046 mTranslator.translateCanvas(canvas); 2047 } 2048 canvas.setScreenDensity(scalingRequired 2049 ? DisplayMetrics.DENSITY_DEVICE : 0); 2050 mAttachInfo.mSetIgnoreDirtyState = false; 2051 2052 final long drawStartTime; 2053 if (ViewDebug.DEBUG_LATENCY) { 2054 drawStartTime = System.nanoTime(); 2055 } 2056 2057 mView.draw(canvas); 2058 2059 if (ViewDebug.DEBUG_LATENCY) { 2060 long now = System.nanoTime(); 2061 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2062 + ((now - drawStartTime) * 0.000001f) + "ms"); 2063 } 2064 } finally { 2065 if (!mAttachInfo.mSetIgnoreDirtyState) { 2066 // Only clear the flag if it was not set during the mView.draw() call 2067 mAttachInfo.mIgnoreDirtyState = false; 2068 } 2069 } 2070 2071 if (false && ViewDebug.consistencyCheckEnabled) { 2072 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2073 } 2074 2075 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2076 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2077 } 2078 } finally { 2079 final long unlockCanvasAndPostStartTime; 2080 if (ViewDebug.DEBUG_LATENCY) { 2081 unlockCanvasAndPostStartTime = System.nanoTime(); 2082 } 2083 2084 surface.unlockCanvasAndPost(canvas); 2085 2086 if (ViewDebug.DEBUG_LATENCY) { 2087 long now = System.nanoTime(); 2088 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2089 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2090 } 2091 2092 if (LOCAL_LOGV) { 2093 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2094 } 2095 } 2096 } 2097 } 2098 2099 if (animating) { 2100 mFullRedrawNeeded = true; 2101 scheduleTraversals(); 2102 } 2103 } 2104 2105 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2106 final View.AttachInfo attachInfo = mAttachInfo; 2107 final Rect ci = attachInfo.mContentInsets; 2108 final Rect vi = attachInfo.mVisibleInsets; 2109 int scrollY = 0; 2110 boolean handled = false; 2111 2112 if (vi.left > ci.left || vi.top > ci.top 2113 || vi.right > ci.right || vi.bottom > ci.bottom) { 2114 // We'll assume that we aren't going to change the scroll 2115 // offset, since we want to avoid that unless it is actually 2116 // going to make the focus visible... otherwise we scroll 2117 // all over the place. 2118 scrollY = mScrollY; 2119 // We can be called for two different situations: during a draw, 2120 // to update the scroll position if the focus has changed (in which 2121 // case 'rectangle' is null), or in response to a 2122 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2123 // is non-null and we just want to scroll to whatever that 2124 // rectangle is). 2125 View focus = mRealFocusedView; 2126 2127 // When in touch mode, focus points to the previously focused view, 2128 // which may have been removed from the view hierarchy. The following 2129 // line checks whether the view is still in our hierarchy. 2130 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2131 mRealFocusedView = null; 2132 return false; 2133 } 2134 2135 if (focus != mLastScrolledFocus) { 2136 // If the focus has changed, then ignore any requests to scroll 2137 // to a rectangle; first we want to make sure the entire focus 2138 // view is visible. 2139 rectangle = null; 2140 } 2141 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2142 + " rectangle=" + rectangle + " ci=" + ci 2143 + " vi=" + vi); 2144 if (focus == mLastScrolledFocus && !mScrollMayChange 2145 && rectangle == null) { 2146 // Optimization: if the focus hasn't changed since last 2147 // time, and no layout has happened, then just leave things 2148 // as they are. 2149 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2150 + mScrollY + " vi=" + vi.toShortString()); 2151 } else if (focus != null) { 2152 // We need to determine if the currently focused view is 2153 // within the visible part of the window and, if not, apply 2154 // a pan so it can be seen. 2155 mLastScrolledFocus = focus; 2156 mScrollMayChange = false; 2157 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2158 // Try to find the rectangle from the focus view. 2159 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2160 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2161 + mView.getWidth() + " h=" + mView.getHeight() 2162 + " ci=" + ci.toShortString() 2163 + " vi=" + vi.toShortString()); 2164 if (rectangle == null) { 2165 focus.getFocusedRect(mTempRect); 2166 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2167 + ": focusRect=" + mTempRect.toShortString()); 2168 if (mView instanceof ViewGroup) { 2169 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2170 focus, mTempRect); 2171 } 2172 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2173 "Focus in window: focusRect=" 2174 + mTempRect.toShortString() 2175 + " visRect=" + mVisRect.toShortString()); 2176 } else { 2177 mTempRect.set(rectangle); 2178 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2179 "Request scroll to rect: " 2180 + mTempRect.toShortString() 2181 + " visRect=" + mVisRect.toShortString()); 2182 } 2183 if (mTempRect.intersect(mVisRect)) { 2184 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2185 "Focus window visible rect: " 2186 + mTempRect.toShortString()); 2187 if (mTempRect.height() > 2188 (mView.getHeight()-vi.top-vi.bottom)) { 2189 // If the focus simply is not going to fit, then 2190 // best is probably just to leave things as-is. 2191 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2192 "Too tall; leaving scrollY=" + scrollY); 2193 } else if ((mTempRect.top-scrollY) < vi.top) { 2194 scrollY -= vi.top - (mTempRect.top-scrollY); 2195 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2196 "Top covered; scrollY=" + scrollY); 2197 } else if ((mTempRect.bottom-scrollY) 2198 > (mView.getHeight()-vi.bottom)) { 2199 scrollY += (mTempRect.bottom-scrollY) 2200 - (mView.getHeight()-vi.bottom); 2201 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2202 "Bottom covered; scrollY=" + scrollY); 2203 } 2204 handled = true; 2205 } 2206 } 2207 } 2208 } 2209 2210 if (scrollY != mScrollY) { 2211 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2212 + mScrollY + " , new=" + scrollY); 2213 if (!immediate && mResizeBuffer == null) { 2214 if (mScroller == null) { 2215 mScroller = new Scroller(mView.getContext()); 2216 } 2217 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2218 } else if (mScroller != null) { 2219 mScroller.abortAnimation(); 2220 } 2221 mScrollY = scrollY; 2222 } 2223 2224 return handled; 2225 } 2226 2227 public void requestChildFocus(View child, View focused) { 2228 checkThread(); 2229 if (mFocusedView != focused) { 2230 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2231 scheduleTraversals(); 2232 } 2233 mFocusedView = mRealFocusedView = focused; 2234 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2235 + mFocusedView); 2236 } 2237 2238 public void clearChildFocus(View child) { 2239 checkThread(); 2240 2241 View oldFocus = mFocusedView; 2242 2243 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2244 mFocusedView = mRealFocusedView = null; 2245 if (mView != null && !mView.hasFocus()) { 2246 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2247 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2248 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2249 } 2250 } else if (oldFocus != null) { 2251 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2252 } 2253 } 2254 2255 2256 public void focusableViewAvailable(View v) { 2257 checkThread(); 2258 2259 if (mView != null) { 2260 if (!mView.hasFocus()) { 2261 v.requestFocus(); 2262 } else { 2263 // the one case where will transfer focus away from the current one 2264 // is if the current view is a view group that prefers to give focus 2265 // to its children first AND the view is a descendant of it. 2266 mFocusedView = mView.findFocus(); 2267 boolean descendantsHaveDibsOnFocus = 2268 (mFocusedView instanceof ViewGroup) && 2269 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2270 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2271 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2272 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2273 v.requestFocus(); 2274 } 2275 } 2276 } 2277 } 2278 2279 public void recomputeViewAttributes(View child) { 2280 checkThread(); 2281 if (mView == child) { 2282 mAttachInfo.mRecomputeGlobalAttributes = true; 2283 if (!mWillDrawSoon) { 2284 scheduleTraversals(); 2285 } 2286 } 2287 } 2288 2289 void dispatchDetachedFromWindow() { 2290 if (mView != null && mView.mAttachInfo != null) { 2291 if (mAttachInfo.mHardwareRenderer != null && 2292 mAttachInfo.mHardwareRenderer.isEnabled()) { 2293 mAttachInfo.mHardwareRenderer.validate(); 2294 } 2295 mView.dispatchDetachedFromWindow(); 2296 } 2297 2298 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2299 mAccessibilityManager.removeAccessibilityStateChangeListener( 2300 mAccessibilityInteractionConnectionManager); 2301 removeSendWindowContentChangedCallback(); 2302 2303 mView = null; 2304 mAttachInfo.mRootView = null; 2305 mAttachInfo.mSurface = null; 2306 2307 destroyHardwareRenderer(); 2308 2309 mSurface.release(); 2310 2311 if (mInputQueueCallback != null && mInputQueue != null) { 2312 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2313 mInputQueueCallback = null; 2314 mInputQueue = null; 2315 } else if (mInputEventReceiver != null) { 2316 mInputEventReceiver.dispose(); 2317 mInputEventReceiver = null; 2318 } 2319 try { 2320 sWindowSession.remove(mWindow); 2321 } catch (RemoteException e) { 2322 } 2323 2324 // Dispose the input channel after removing the window so the Window Manager 2325 // doesn't interpret the input channel being closed as an abnormal termination. 2326 if (mInputChannel != null) { 2327 mInputChannel.dispose(); 2328 mInputChannel = null; 2329 } 2330 2331 mChoreographer.removeOnDrawListener(this); 2332 } 2333 2334 void updateConfiguration(Configuration config, boolean force) { 2335 if (DEBUG_CONFIGURATION) Log.v(TAG, 2336 "Applying new config to window " 2337 + mWindowAttributes.getTitle() 2338 + ": " + config); 2339 2340 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2341 if (ci != null) { 2342 config = new Configuration(config); 2343 ci.applyToConfiguration(config); 2344 } 2345 2346 synchronized (sConfigCallbacks) { 2347 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2348 sConfigCallbacks.get(i).onConfigurationChanged(config); 2349 } 2350 } 2351 if (mView != null) { 2352 // At this point the resources have been updated to 2353 // have the most recent config, whatever that is. Use 2354 // the on in them which may be newer. 2355 config = mView.getResources().getConfiguration(); 2356 if (force || mLastConfiguration.diff(config) != 0) { 2357 mLastConfiguration.setTo(config); 2358 mView.dispatchConfigurationChanged(config); 2359 } 2360 } 2361 } 2362 2363 /** 2364 * Return true if child is an ancestor of parent, (or equal to the parent). 2365 */ 2366 private static boolean isViewDescendantOf(View child, View parent) { 2367 if (child == parent) { 2368 return true; 2369 } 2370 2371 final ViewParent theParent = child.getParent(); 2372 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2373 } 2374 2375 private static void forceLayout(View view) { 2376 view.forceLayout(); 2377 if (view instanceof ViewGroup) { 2378 ViewGroup group = (ViewGroup) view; 2379 final int count = group.getChildCount(); 2380 for (int i = 0; i < count; i++) { 2381 forceLayout(group.getChildAt(i)); 2382 } 2383 } 2384 } 2385 2386 public final static int DIE = 1001; 2387 public final static int RESIZED = 1002; 2388 public final static int RESIZED_REPORT = 1003; 2389 public final static int WINDOW_FOCUS_CHANGED = 1004; 2390 public final static int DISPATCH_KEY = 1005; 2391 public final static int DISPATCH_APP_VISIBILITY = 1008; 2392 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2393 public final static int IME_FINISHED_EVENT = 1010; 2394 public final static int DISPATCH_KEY_FROM_IME = 1011; 2395 public final static int FINISH_INPUT_CONNECTION = 1012; 2396 public final static int CHECK_FOCUS = 1013; 2397 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2398 public final static int DISPATCH_DRAG_EVENT = 1015; 2399 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2400 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2401 public final static int DISPATCH_GENERIC_MOTION = 1018; 2402 public final static int UPDATE_CONFIGURATION = 1019; 2403 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2404 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2405 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2406 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT = 1023; 2407 public final static int DO_PROCESS_INPUT_EVENTS = 1024; 2408 2409 @Override 2410 public String getMessageName(Message message) { 2411 switch (message.what) { 2412 case DIE: 2413 return "DIE"; 2414 case RESIZED: 2415 return "RESIZED"; 2416 case RESIZED_REPORT: 2417 return "RESIZED_REPORT"; 2418 case WINDOW_FOCUS_CHANGED: 2419 return "WINDOW_FOCUS_CHANGED"; 2420 case DISPATCH_KEY: 2421 return "DISPATCH_KEY"; 2422 case DISPATCH_APP_VISIBILITY: 2423 return "DISPATCH_APP_VISIBILITY"; 2424 case DISPATCH_GET_NEW_SURFACE: 2425 return "DISPATCH_GET_NEW_SURFACE"; 2426 case IME_FINISHED_EVENT: 2427 return "IME_FINISHED_EVENT"; 2428 case DISPATCH_KEY_FROM_IME: 2429 return "DISPATCH_KEY_FROM_IME"; 2430 case FINISH_INPUT_CONNECTION: 2431 return "FINISH_INPUT_CONNECTION"; 2432 case CHECK_FOCUS: 2433 return "CHECK_FOCUS"; 2434 case CLOSE_SYSTEM_DIALOGS: 2435 return "CLOSE_SYSTEM_DIALOGS"; 2436 case DISPATCH_DRAG_EVENT: 2437 return "DISPATCH_DRAG_EVENT"; 2438 case DISPATCH_DRAG_LOCATION_EVENT: 2439 return "DISPATCH_DRAG_LOCATION_EVENT"; 2440 case DISPATCH_SYSTEM_UI_VISIBILITY: 2441 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2442 case DISPATCH_GENERIC_MOTION: 2443 return "DISPATCH_GENERIC_MOTION"; 2444 case UPDATE_CONFIGURATION: 2445 return "UPDATE_CONFIGURATION"; 2446 case DO_PERFORM_ACCESSIBILITY_ACTION: 2447 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2448 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2449 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2450 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2451 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2452 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: 2453 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT"; 2454 case DO_PROCESS_INPUT_EVENTS: 2455 return "DO_PROCESS_INPUT_EVENTS"; 2456 } 2457 return super.getMessageName(message); 2458 } 2459 2460 @Override 2461 public void handleMessage(Message msg) { 2462 switch (msg.what) { 2463 case View.AttachInfo.INVALIDATE_MSG: 2464 ((View) msg.obj).invalidate(); 2465 break; 2466 case View.AttachInfo.INVALIDATE_RECT_MSG: 2467 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2468 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2469 info.release(); 2470 break; 2471 case IME_FINISHED_EVENT: 2472 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2473 break; 2474 case DO_PROCESS_INPUT_EVENTS: 2475 mProcessInputEventsScheduled = false; 2476 doProcessInputEvents(); 2477 break; 2478 case DISPATCH_APP_VISIBILITY: 2479 handleAppVisibility(msg.arg1 != 0); 2480 break; 2481 case DISPATCH_GET_NEW_SURFACE: 2482 handleGetNewSurface(); 2483 break; 2484 case RESIZED: 2485 ResizedInfo ri = (ResizedInfo)msg.obj; 2486 2487 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2488 && mPendingContentInsets.equals(ri.coveredInsets) 2489 && mPendingVisibleInsets.equals(ri.visibleInsets) 2490 && ((ResizedInfo)msg.obj).newConfig == null) { 2491 break; 2492 } 2493 // fall through... 2494 case RESIZED_REPORT: 2495 if (mAdded) { 2496 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2497 if (config != null) { 2498 updateConfiguration(config, false); 2499 } 2500 mWinFrame.left = 0; 2501 mWinFrame.right = msg.arg1; 2502 mWinFrame.top = 0; 2503 mWinFrame.bottom = msg.arg2; 2504 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2505 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2506 if (msg.what == RESIZED_REPORT) { 2507 mReportNextDraw = true; 2508 } 2509 2510 if (mView != null) { 2511 forceLayout(mView); 2512 } 2513 requestLayout(); 2514 } 2515 break; 2516 case WINDOW_FOCUS_CHANGED: { 2517 if (mAdded) { 2518 boolean hasWindowFocus = msg.arg1 != 0; 2519 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2520 2521 profileRendering(hasWindowFocus); 2522 2523 if (hasWindowFocus) { 2524 boolean inTouchMode = msg.arg2 != 0; 2525 ensureTouchModeLocally(inTouchMode); 2526 2527 if (mAttachInfo.mHardwareRenderer != null && 2528 mSurface != null && mSurface.isValid()) { 2529 mFullRedrawNeeded = true; 2530 try { 2531 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2532 mHolder); 2533 } catch (Surface.OutOfResourcesException e) { 2534 Log.e(TAG, "OutOfResourcesException locking surface", e); 2535 try { 2536 if (!sWindowSession.outOfMemory(mWindow)) { 2537 Slog.w(TAG, "No processes killed for memory; killing self"); 2538 Process.killProcess(Process.myPid()); 2539 } 2540 } catch (RemoteException ex) { 2541 } 2542 // Retry in a bit. 2543 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2544 return; 2545 } 2546 } 2547 } 2548 2549 mLastWasImTarget = WindowManager.LayoutParams 2550 .mayUseInputMethod(mWindowAttributes.flags); 2551 2552 InputMethodManager imm = InputMethodManager.peekInstance(); 2553 if (mView != null) { 2554 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2555 imm.startGettingWindowFocus(mView); 2556 } 2557 mAttachInfo.mKeyDispatchState.reset(); 2558 mView.dispatchWindowFocusChanged(hasWindowFocus); 2559 } 2560 2561 // Note: must be done after the focus change callbacks, 2562 // so all of the view state is set up correctly. 2563 if (hasWindowFocus) { 2564 if (imm != null && mLastWasImTarget) { 2565 imm.onWindowFocus(mView, mView.findFocus(), 2566 mWindowAttributes.softInputMode, 2567 !mHasHadWindowFocus, mWindowAttributes.flags); 2568 } 2569 // Clear the forward bit. We can just do this directly, since 2570 // the window manager doesn't care about it. 2571 mWindowAttributes.softInputMode &= 2572 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2573 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2574 .softInputMode &= 2575 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2576 mHasHadWindowFocus = true; 2577 } 2578 2579 if (hasWindowFocus && mView != null) { 2580 sendAccessibilityEvents(); 2581 } 2582 } 2583 } break; 2584 case DIE: 2585 doDie(); 2586 break; 2587 case DISPATCH_KEY: { 2588 KeyEvent event = (KeyEvent)msg.obj; 2589 enqueueInputEvent(event, null, 0); 2590 } break; 2591 case DISPATCH_KEY_FROM_IME: { 2592 if (LOCAL_LOGV) Log.v( 2593 TAG, "Dispatching key " 2594 + msg.obj + " from IME to " + mView); 2595 KeyEvent event = (KeyEvent)msg.obj; 2596 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2597 // The IME is trying to say this event is from the 2598 // system! Bad bad bad! 2599 //noinspection UnusedAssignment 2600 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2601 } 2602 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME); 2603 } break; 2604 case FINISH_INPUT_CONNECTION: { 2605 InputMethodManager imm = InputMethodManager.peekInstance(); 2606 if (imm != null) { 2607 imm.reportFinishInputConnection((InputConnection)msg.obj); 2608 } 2609 } break; 2610 case CHECK_FOCUS: { 2611 InputMethodManager imm = InputMethodManager.peekInstance(); 2612 if (imm != null) { 2613 imm.checkFocus(); 2614 } 2615 } break; 2616 case CLOSE_SYSTEM_DIALOGS: { 2617 if (mView != null) { 2618 mView.onCloseSystemDialogs((String)msg.obj); 2619 } 2620 } break; 2621 case DISPATCH_DRAG_EVENT: 2622 case DISPATCH_DRAG_LOCATION_EVENT: { 2623 DragEvent event = (DragEvent)msg.obj; 2624 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2625 handleDragEvent(event); 2626 } break; 2627 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2628 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2629 } break; 2630 case UPDATE_CONFIGURATION: { 2631 Configuration config = (Configuration)msg.obj; 2632 if (config.isOtherSeqNewer(mLastConfiguration)) { 2633 config = mLastConfiguration; 2634 } 2635 updateConfiguration(config, false); 2636 } break; 2637 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2638 if (mView != null) { 2639 getAccessibilityInteractionController() 2640 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2641 } 2642 } break; 2643 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2644 if (mView != null) { 2645 getAccessibilityInteractionController() 2646 .perfromAccessibilityActionUiThread(msg); 2647 } 2648 } break; 2649 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2650 if (mView != null) { 2651 getAccessibilityInteractionController() 2652 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2653 } 2654 } break; 2655 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: { 2656 if (mView != null) { 2657 getAccessibilityInteractionController() 2658 .findAccessibilityNodeInfosByTextUiThread(msg); 2659 } 2660 } break; 2661 } 2662 } 2663 2664 /** 2665 * Something in the current window tells us we need to change the touch mode. For 2666 * example, we are not in touch mode, and the user touches the screen. 2667 * 2668 * If the touch mode has changed, tell the window manager, and handle it locally. 2669 * 2670 * @param inTouchMode Whether we want to be in touch mode. 2671 * @return True if the touch mode changed and focus changed was changed as a result 2672 */ 2673 boolean ensureTouchMode(boolean inTouchMode) { 2674 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2675 + "touch mode is " + mAttachInfo.mInTouchMode); 2676 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2677 2678 // tell the window manager 2679 try { 2680 sWindowSession.setInTouchMode(inTouchMode); 2681 } catch (RemoteException e) { 2682 throw new RuntimeException(e); 2683 } 2684 2685 // handle the change 2686 return ensureTouchModeLocally(inTouchMode); 2687 } 2688 2689 /** 2690 * Ensure that the touch mode for this window is set, and if it is changing, 2691 * take the appropriate action. 2692 * @param inTouchMode Whether we want to be in touch mode. 2693 * @return True if the touch mode changed and focus changed was changed as a result 2694 */ 2695 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2696 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2697 + "touch mode is " + mAttachInfo.mInTouchMode); 2698 2699 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2700 2701 mAttachInfo.mInTouchMode = inTouchMode; 2702 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2703 2704 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2705 } 2706 2707 private boolean enterTouchMode() { 2708 if (mView != null) { 2709 if (mView.hasFocus()) { 2710 // note: not relying on mFocusedView here because this could 2711 // be when the window is first being added, and mFocused isn't 2712 // set yet. 2713 final View focused = mView.findFocus(); 2714 if (focused != null && !focused.isFocusableInTouchMode()) { 2715 2716 final ViewGroup ancestorToTakeFocus = 2717 findAncestorToTakeFocusInTouchMode(focused); 2718 if (ancestorToTakeFocus != null) { 2719 // there is an ancestor that wants focus after its descendants that 2720 // is focusable in touch mode.. give it focus 2721 return ancestorToTakeFocus.requestFocus(); 2722 } else { 2723 // nothing appropriate to have focus in touch mode, clear it out 2724 mView.unFocus(); 2725 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2726 mFocusedView = null; 2727 return true; 2728 } 2729 } 2730 } 2731 } 2732 return false; 2733 } 2734 2735 2736 /** 2737 * Find an ancestor of focused that wants focus after its descendants and is 2738 * focusable in touch mode. 2739 * @param focused The currently focused view. 2740 * @return An appropriate view, or null if no such view exists. 2741 */ 2742 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2743 ViewParent parent = focused.getParent(); 2744 while (parent instanceof ViewGroup) { 2745 final ViewGroup vgParent = (ViewGroup) parent; 2746 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2747 && vgParent.isFocusableInTouchMode()) { 2748 return vgParent; 2749 } 2750 if (vgParent.isRootNamespace()) { 2751 return null; 2752 } else { 2753 parent = vgParent.getParent(); 2754 } 2755 } 2756 return null; 2757 } 2758 2759 private boolean leaveTouchMode() { 2760 if (mView != null) { 2761 if (mView.hasFocus()) { 2762 // i learned the hard way to not trust mFocusedView :) 2763 mFocusedView = mView.findFocus(); 2764 if (!(mFocusedView instanceof ViewGroup)) { 2765 // some view has focus, let it keep it 2766 return false; 2767 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2768 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2769 // some view group has focus, and doesn't prefer its children 2770 // over itself for focus, so let them keep it. 2771 return false; 2772 } 2773 } 2774 2775 // find the best view to give focus to in this brave new non-touch-mode 2776 // world 2777 final View focused = focusSearch(null, View.FOCUS_DOWN); 2778 if (focused != null) { 2779 return focused.requestFocus(View.FOCUS_DOWN); 2780 } 2781 } 2782 return false; 2783 } 2784 2785 private void deliverInputEvent(QueuedInputEvent q) { 2786 if (ViewDebug.DEBUG_LATENCY) { 2787 q.mDeliverTimeNanos = System.nanoTime(); 2788 } 2789 2790 if (q.mEvent instanceof KeyEvent) { 2791 deliverKeyEvent(q); 2792 } else { 2793 final int source = q.mEvent.getSource(); 2794 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2795 deliverPointerEvent(q); 2796 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 2797 deliverTrackballEvent(q); 2798 } else { 2799 deliverGenericMotionEvent(q); 2800 } 2801 } 2802 } 2803 2804 private void deliverPointerEvent(QueuedInputEvent q) { 2805 final MotionEvent event = (MotionEvent)q.mEvent; 2806 final boolean isTouchEvent = event.isTouchEvent(); 2807 if (mInputEventConsistencyVerifier != null) { 2808 if (isTouchEvent) { 2809 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2810 } else { 2811 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2812 } 2813 } 2814 2815 // If there is no view, then the event will not be handled. 2816 if (mView == null || !mAdded) { 2817 finishInputEvent(q, false); 2818 return; 2819 } 2820 2821 // Translate the pointer event for compatibility, if needed. 2822 if (mTranslator != null) { 2823 mTranslator.translateEventInScreenToAppWindow(event); 2824 } 2825 2826 // Enter touch mode on down or scroll. 2827 final int action = event.getAction(); 2828 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2829 ensureTouchMode(true); 2830 } 2831 2832 // Offset the scroll position. 2833 if (mCurScrollY != 0) { 2834 event.offsetLocation(0, mCurScrollY); 2835 } 2836 if (MEASURE_LATENCY) { 2837 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2838 } 2839 2840 // Remember the touch position for possible drag-initiation. 2841 if (isTouchEvent) { 2842 mLastTouchPoint.x = event.getRawX(); 2843 mLastTouchPoint.y = event.getRawY(); 2844 } 2845 2846 // Dispatch touch to view hierarchy. 2847 boolean handled = mView.dispatchPointerEvent(event); 2848 if (MEASURE_LATENCY) { 2849 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2850 } 2851 if (handled) { 2852 finishInputEvent(q, true); 2853 return; 2854 } 2855 2856 // Pointer event was unhandled. 2857 finishInputEvent(q, false); 2858 } 2859 2860 private void deliverTrackballEvent(QueuedInputEvent q) { 2861 final MotionEvent event = (MotionEvent)q.mEvent; 2862 if (mInputEventConsistencyVerifier != null) { 2863 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2864 } 2865 2866 // If there is no view, then the event will not be handled. 2867 if (mView == null || !mAdded) { 2868 finishInputEvent(q, false); 2869 return; 2870 } 2871 2872 // Deliver the trackball event to the view. 2873 if (mView.dispatchTrackballEvent(event)) { 2874 // If we reach this, we delivered a trackball event to mView and 2875 // mView consumed it. Because we will not translate the trackball 2876 // event into a key event, touch mode will not exit, so we exit 2877 // touch mode here. 2878 ensureTouchMode(false); 2879 2880 finishInputEvent(q, true); 2881 mLastTrackballTime = Integer.MIN_VALUE; 2882 return; 2883 } 2884 2885 // Translate the trackball event into DPAD keys and try to deliver those. 2886 final TrackballAxis x = mTrackballAxisX; 2887 final TrackballAxis y = mTrackballAxisY; 2888 2889 long curTime = SystemClock.uptimeMillis(); 2890 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2891 // It has been too long since the last movement, 2892 // so restart at the beginning. 2893 x.reset(0); 2894 y.reset(0); 2895 mLastTrackballTime = curTime; 2896 } 2897 2898 final int action = event.getAction(); 2899 final int metaState = event.getMetaState(); 2900 switch (action) { 2901 case MotionEvent.ACTION_DOWN: 2902 x.reset(2); 2903 y.reset(2); 2904 dispatchKey(new KeyEvent(curTime, curTime, 2905 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2906 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2907 InputDevice.SOURCE_KEYBOARD)); 2908 break; 2909 case MotionEvent.ACTION_UP: 2910 x.reset(2); 2911 y.reset(2); 2912 dispatchKey(new KeyEvent(curTime, curTime, 2913 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2914 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2915 InputDevice.SOURCE_KEYBOARD)); 2916 break; 2917 } 2918 2919 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2920 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2921 + " move=" + event.getX() 2922 + " / Y=" + y.position + " step=" 2923 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2924 + " move=" + event.getY()); 2925 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2926 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2927 2928 // Generate DPAD events based on the trackball movement. 2929 // We pick the axis that has moved the most as the direction of 2930 // the DPAD. When we generate DPAD events for one axis, then the 2931 // other axis is reset -- we don't want to perform DPAD jumps due 2932 // to slight movements in the trackball when making major movements 2933 // along the other axis. 2934 int keycode = 0; 2935 int movement = 0; 2936 float accel = 1; 2937 if (xOff > yOff) { 2938 movement = x.generate((2/event.getXPrecision())); 2939 if (movement != 0) { 2940 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2941 : KeyEvent.KEYCODE_DPAD_LEFT; 2942 accel = x.acceleration; 2943 y.reset(2); 2944 } 2945 } else if (yOff > 0) { 2946 movement = y.generate((2/event.getYPrecision())); 2947 if (movement != 0) { 2948 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2949 : KeyEvent.KEYCODE_DPAD_UP; 2950 accel = y.acceleration; 2951 x.reset(2); 2952 } 2953 } 2954 2955 if (keycode != 0) { 2956 if (movement < 0) movement = -movement; 2957 int accelMovement = (int)(movement * accel); 2958 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2959 + " accelMovement=" + accelMovement 2960 + " accel=" + accel); 2961 if (accelMovement > movement) { 2962 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2963 + keycode); 2964 movement--; 2965 int repeatCount = accelMovement - movement; 2966 dispatchKey(new KeyEvent(curTime, curTime, 2967 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2968 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2969 InputDevice.SOURCE_KEYBOARD)); 2970 } 2971 while (movement > 0) { 2972 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2973 + keycode); 2974 movement--; 2975 curTime = SystemClock.uptimeMillis(); 2976 dispatchKey(new KeyEvent(curTime, curTime, 2977 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2978 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2979 InputDevice.SOURCE_KEYBOARD)); 2980 dispatchKey(new KeyEvent(curTime, curTime, 2981 KeyEvent.ACTION_UP, keycode, 0, metaState, 2982 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2983 InputDevice.SOURCE_KEYBOARD)); 2984 } 2985 mLastTrackballTime = curTime; 2986 } 2987 2988 // Unfortunately we can't tell whether the application consumed the keys, so 2989 // we always consider the trackball event handled. 2990 finishInputEvent(q, true); 2991 } 2992 2993 private void deliverGenericMotionEvent(QueuedInputEvent q) { 2994 final MotionEvent event = (MotionEvent)q.mEvent; 2995 if (mInputEventConsistencyVerifier != null) { 2996 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2997 } 2998 2999 final int source = event.getSource(); 3000 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3001 3002 // If there is no view, then the event will not be handled. 3003 if (mView == null || !mAdded) { 3004 if (isJoystick) { 3005 updateJoystickDirection(event, false); 3006 } 3007 finishInputEvent(q, false); 3008 return; 3009 } 3010 3011 // Deliver the event to the view. 3012 if (mView.dispatchGenericMotionEvent(event)) { 3013 if (isJoystick) { 3014 updateJoystickDirection(event, false); 3015 } 3016 finishInputEvent(q, true); 3017 return; 3018 } 3019 3020 if (isJoystick) { 3021 // Translate the joystick event into DPAD keys and try to deliver those. 3022 updateJoystickDirection(event, true); 3023 finishInputEvent(q, true); 3024 } else { 3025 finishInputEvent(q, false); 3026 } 3027 } 3028 3029 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3030 final long time = event.getEventTime(); 3031 final int metaState = event.getMetaState(); 3032 final int deviceId = event.getDeviceId(); 3033 final int source = event.getSource(); 3034 3035 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3036 if (xDirection == 0) { 3037 xDirection = joystickAxisValueToDirection(event.getX()); 3038 } 3039 3040 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3041 if (yDirection == 0) { 3042 yDirection = joystickAxisValueToDirection(event.getY()); 3043 } 3044 3045 if (xDirection != mLastJoystickXDirection) { 3046 if (mLastJoystickXKeyCode != 0) { 3047 dispatchKey(new KeyEvent(time, time, 3048 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3049 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3050 mLastJoystickXKeyCode = 0; 3051 } 3052 3053 mLastJoystickXDirection = xDirection; 3054 3055 if (xDirection != 0 && synthesizeNewKeys) { 3056 mLastJoystickXKeyCode = xDirection > 0 3057 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3058 dispatchKey(new KeyEvent(time, time, 3059 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3060 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3061 } 3062 } 3063 3064 if (yDirection != mLastJoystickYDirection) { 3065 if (mLastJoystickYKeyCode != 0) { 3066 dispatchKey(new KeyEvent(time, time, 3067 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3068 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3069 mLastJoystickYKeyCode = 0; 3070 } 3071 3072 mLastJoystickYDirection = yDirection; 3073 3074 if (yDirection != 0 && synthesizeNewKeys) { 3075 mLastJoystickYKeyCode = yDirection > 0 3076 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3077 dispatchKey(new KeyEvent(time, time, 3078 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3079 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3080 } 3081 } 3082 } 3083 3084 private static int joystickAxisValueToDirection(float value) { 3085 if (value >= 0.5f) { 3086 return 1; 3087 } else if (value <= -0.5f) { 3088 return -1; 3089 } else { 3090 return 0; 3091 } 3092 } 3093 3094 /** 3095 * Returns true if the key is used for keyboard navigation. 3096 * @param keyEvent The key event. 3097 * @return True if the key is used for keyboard navigation. 3098 */ 3099 private static boolean isNavigationKey(KeyEvent keyEvent) { 3100 switch (keyEvent.getKeyCode()) { 3101 case KeyEvent.KEYCODE_DPAD_LEFT: 3102 case KeyEvent.KEYCODE_DPAD_RIGHT: 3103 case KeyEvent.KEYCODE_DPAD_UP: 3104 case KeyEvent.KEYCODE_DPAD_DOWN: 3105 case KeyEvent.KEYCODE_DPAD_CENTER: 3106 case KeyEvent.KEYCODE_PAGE_UP: 3107 case KeyEvent.KEYCODE_PAGE_DOWN: 3108 case KeyEvent.KEYCODE_MOVE_HOME: 3109 case KeyEvent.KEYCODE_MOVE_END: 3110 case KeyEvent.KEYCODE_TAB: 3111 case KeyEvent.KEYCODE_SPACE: 3112 case KeyEvent.KEYCODE_ENTER: 3113 return true; 3114 } 3115 return false; 3116 } 3117 3118 /** 3119 * Returns true if the key is used for typing. 3120 * @param keyEvent The key event. 3121 * @return True if the key is used for typing. 3122 */ 3123 private static boolean isTypingKey(KeyEvent keyEvent) { 3124 return keyEvent.getUnicodeChar() > 0; 3125 } 3126 3127 /** 3128 * See if the key event means we should leave touch mode (and leave touch mode if so). 3129 * @param event The key event. 3130 * @return Whether this key event should be consumed (meaning the act of 3131 * leaving touch mode alone is considered the event). 3132 */ 3133 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3134 // Only relevant in touch mode. 3135 if (!mAttachInfo.mInTouchMode) { 3136 return false; 3137 } 3138 3139 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3140 final int action = event.getAction(); 3141 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3142 return false; 3143 } 3144 3145 // Don't leave touch mode if the IME told us not to. 3146 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3147 return false; 3148 } 3149 3150 // If the key can be used for keyboard navigation then leave touch mode 3151 // and select a focused view if needed (in ensureTouchMode). 3152 // When a new focused view is selected, we consume the navigation key because 3153 // navigation doesn't make much sense unless a view already has focus so 3154 // the key's purpose is to set focus. 3155 if (isNavigationKey(event)) { 3156 return ensureTouchMode(false); 3157 } 3158 3159 // If the key can be used for typing then leave touch mode 3160 // and select a focused view if needed (in ensureTouchMode). 3161 // Always allow the view to process the typing key. 3162 if (isTypingKey(event)) { 3163 ensureTouchMode(false); 3164 return false; 3165 } 3166 3167 return false; 3168 } 3169 3170 private void deliverKeyEvent(QueuedInputEvent q) { 3171 final KeyEvent event = (KeyEvent)q.mEvent; 3172 if (mInputEventConsistencyVerifier != null) { 3173 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3174 } 3175 3176 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3177 // If there is no view, then the event will not be handled. 3178 if (mView == null || !mAdded) { 3179 finishInputEvent(q, false); 3180 return; 3181 } 3182 3183 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3184 3185 // Perform predispatching before the IME. 3186 if (mView.dispatchKeyEventPreIme(event)) { 3187 finishInputEvent(q, true); 3188 return; 3189 } 3190 3191 // Dispatch to the IME before propagating down the view hierarchy. 3192 // The IME will eventually call back into handleImeFinishedEvent. 3193 if (mLastWasImTarget) { 3194 InputMethodManager imm = InputMethodManager.peekInstance(); 3195 if (imm != null) { 3196 final int seq = event.getSequenceNumber(); 3197 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3198 + seq + " event=" + event); 3199 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3200 return; 3201 } 3202 } 3203 } 3204 3205 // Not dispatching to IME, continue with post IME actions. 3206 deliverKeyEventPostIme(q); 3207 } 3208 3209 void handleImeFinishedEvent(int seq, boolean handled) { 3210 final QueuedInputEvent q = mCurrentInputEvent; 3211 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3212 final KeyEvent event = (KeyEvent)q.mEvent; 3213 if (DEBUG_IMF) { 3214 Log.v(TAG, "IME finished event: seq=" + seq 3215 + " handled=" + handled + " event=" + event); 3216 } 3217 if (handled) { 3218 finishInputEvent(q, true); 3219 } else { 3220 deliverKeyEventPostIme(q); 3221 } 3222 } else { 3223 if (DEBUG_IMF) { 3224 Log.v(TAG, "IME finished event: seq=" + seq 3225 + " handled=" + handled + ", event not found!"); 3226 } 3227 } 3228 } 3229 3230 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3231 final KeyEvent event = (KeyEvent)q.mEvent; 3232 if (ViewDebug.DEBUG_LATENCY) { 3233 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3234 } 3235 3236 // If the view went away, then the event will not be handled. 3237 if (mView == null || !mAdded) { 3238 finishInputEvent(q, false); 3239 return; 3240 } 3241 3242 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3243 if (checkForLeavingTouchModeAndConsume(event)) { 3244 finishInputEvent(q, true); 3245 return; 3246 } 3247 3248 // Make sure the fallback event policy sees all keys that will be delivered to the 3249 // view hierarchy. 3250 mFallbackEventHandler.preDispatchKeyEvent(event); 3251 3252 // Deliver the key to the view hierarchy. 3253 if (mView.dispatchKeyEvent(event)) { 3254 finishInputEvent(q, true); 3255 return; 3256 } 3257 3258 // If the Control modifier is held, try to interpret the key as a shortcut. 3259 if (event.getAction() == KeyEvent.ACTION_DOWN 3260 && event.isCtrlPressed() 3261 && event.getRepeatCount() == 0 3262 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3263 if (mView.dispatchKeyShortcutEvent(event)) { 3264 finishInputEvent(q, true); 3265 return; 3266 } 3267 } 3268 3269 // Apply the fallback event policy. 3270 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3271 finishInputEvent(q, true); 3272 return; 3273 } 3274 3275 // Handle automatic focus changes. 3276 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3277 int direction = 0; 3278 switch (event.getKeyCode()) { 3279 case KeyEvent.KEYCODE_DPAD_LEFT: 3280 if (event.hasNoModifiers()) { 3281 direction = View.FOCUS_LEFT; 3282 } 3283 break; 3284 case KeyEvent.KEYCODE_DPAD_RIGHT: 3285 if (event.hasNoModifiers()) { 3286 direction = View.FOCUS_RIGHT; 3287 } 3288 break; 3289 case KeyEvent.KEYCODE_DPAD_UP: 3290 if (event.hasNoModifiers()) { 3291 direction = View.FOCUS_UP; 3292 } 3293 break; 3294 case KeyEvent.KEYCODE_DPAD_DOWN: 3295 if (event.hasNoModifiers()) { 3296 direction = View.FOCUS_DOWN; 3297 } 3298 break; 3299 case KeyEvent.KEYCODE_TAB: 3300 if (event.hasNoModifiers()) { 3301 direction = View.FOCUS_FORWARD; 3302 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3303 direction = View.FOCUS_BACKWARD; 3304 } 3305 break; 3306 } 3307 3308 if (direction != 0) { 3309 View focused = mView != null ? mView.findFocus() : null; 3310 if (focused != null) { 3311 View v = focused.focusSearch(direction); 3312 if (v != null && v != focused) { 3313 // do the math the get the interesting rect 3314 // of previous focused into the coord system of 3315 // newly focused view 3316 focused.getFocusedRect(mTempRect); 3317 if (mView instanceof ViewGroup) { 3318 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3319 focused, mTempRect); 3320 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3321 v, mTempRect); 3322 } 3323 if (v.requestFocus(direction, mTempRect)) { 3324 playSoundEffect( 3325 SoundEffectConstants.getContantForFocusDirection(direction)); 3326 finishInputEvent(q, true); 3327 return; 3328 } 3329 } 3330 3331 // Give the focused view a last chance to handle the dpad key. 3332 if (mView.dispatchUnhandledMove(focused, direction)) { 3333 finishInputEvent(q, true); 3334 return; 3335 } 3336 } 3337 } 3338 } 3339 3340 // Key was unhandled. 3341 finishInputEvent(q, false); 3342 } 3343 3344 /* drag/drop */ 3345 void setLocalDragState(Object obj) { 3346 mLocalDragState = obj; 3347 } 3348 3349 private void handleDragEvent(DragEvent event) { 3350 // From the root, only drag start/end/location are dispatched. entered/exited 3351 // are determined and dispatched by the viewgroup hierarchy, who then report 3352 // that back here for ultimate reporting back to the framework. 3353 if (mView != null && mAdded) { 3354 final int what = event.mAction; 3355 3356 if (what == DragEvent.ACTION_DRAG_EXITED) { 3357 // A direct EXITED event means that the window manager knows we've just crossed 3358 // a window boundary, so the current drag target within this one must have 3359 // just been exited. Send it the usual notifications and then we're done 3360 // for now. 3361 mView.dispatchDragEvent(event); 3362 } else { 3363 // Cache the drag description when the operation starts, then fill it in 3364 // on subsequent calls as a convenience 3365 if (what == DragEvent.ACTION_DRAG_STARTED) { 3366 mCurrentDragView = null; // Start the current-recipient tracking 3367 mDragDescription = event.mClipDescription; 3368 } else { 3369 event.mClipDescription = mDragDescription; 3370 } 3371 3372 // For events with a [screen] location, translate into window coordinates 3373 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3374 mDragPoint.set(event.mX, event.mY); 3375 if (mTranslator != null) { 3376 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3377 } 3378 3379 if (mCurScrollY != 0) { 3380 mDragPoint.offset(0, mCurScrollY); 3381 } 3382 3383 event.mX = mDragPoint.x; 3384 event.mY = mDragPoint.y; 3385 } 3386 3387 // Remember who the current drag target is pre-dispatch 3388 final View prevDragView = mCurrentDragView; 3389 3390 // Now dispatch the drag/drop event 3391 boolean result = mView.dispatchDragEvent(event); 3392 3393 // If we changed apparent drag target, tell the OS about it 3394 if (prevDragView != mCurrentDragView) { 3395 try { 3396 if (prevDragView != null) { 3397 sWindowSession.dragRecipientExited(mWindow); 3398 } 3399 if (mCurrentDragView != null) { 3400 sWindowSession.dragRecipientEntered(mWindow); 3401 } 3402 } catch (RemoteException e) { 3403 Slog.e(TAG, "Unable to note drag target change"); 3404 } 3405 } 3406 3407 // Report the drop result when we're done 3408 if (what == DragEvent.ACTION_DROP) { 3409 mDragDescription = null; 3410 try { 3411 Log.i(TAG, "Reporting drop result: " + result); 3412 sWindowSession.reportDropResult(mWindow, result); 3413 } catch (RemoteException e) { 3414 Log.e(TAG, "Unable to report drop result"); 3415 } 3416 } 3417 3418 // When the drag operation ends, release any local state object 3419 // that may have been in use 3420 if (what == DragEvent.ACTION_DRAG_ENDED) { 3421 setLocalDragState(null); 3422 } 3423 } 3424 } 3425 event.recycle(); 3426 } 3427 3428 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3429 if (mSeq != args.seq) { 3430 // The sequence has changed, so we need to update our value and make 3431 // sure to do a traversal afterward so the window manager is given our 3432 // most recent data. 3433 mSeq = args.seq; 3434 mAttachInfo.mForceReportNewAttributes = true; 3435 scheduleTraversals(); 3436 } 3437 if (mView == null) return; 3438 if (args.localChanges != 0) { 3439 if (mAttachInfo != null) { 3440 mAttachInfo.mSystemUiVisibility = 3441 (mAttachInfo.mSystemUiVisibility&~args.localChanges) 3442 | (args.localValue&args.localChanges); 3443 } 3444 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3445 mAttachInfo.mRecomputeGlobalAttributes = true; 3446 scheduleTraversals(); 3447 } 3448 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3449 } 3450 3451 public void getLastTouchPoint(Point outLocation) { 3452 outLocation.x = (int) mLastTouchPoint.x; 3453 outLocation.y = (int) mLastTouchPoint.y; 3454 } 3455 3456 public void setDragFocus(View newDragTarget) { 3457 if (mCurrentDragView != newDragTarget) { 3458 mCurrentDragView = newDragTarget; 3459 } 3460 } 3461 3462 private AudioManager getAudioManager() { 3463 if (mView == null) { 3464 throw new IllegalStateException("getAudioManager called when there is no mView"); 3465 } 3466 if (mAudioManager == null) { 3467 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3468 } 3469 return mAudioManager; 3470 } 3471 3472 public AccessibilityInteractionController getAccessibilityInteractionController() { 3473 if (mView == null) { 3474 throw new IllegalStateException("getAccessibilityInteractionController" 3475 + " called when there is no mView"); 3476 } 3477 if (mAccessibilityInteractionController == null) { 3478 mAccessibilityInteractionController = new AccessibilityInteractionController(); 3479 } 3480 return mAccessibilityInteractionController; 3481 } 3482 3483 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3484 boolean insetsPending) throws RemoteException { 3485 3486 float appScale = mAttachInfo.mApplicationScale; 3487 boolean restore = false; 3488 if (params != null && mTranslator != null) { 3489 restore = true; 3490 params.backup(); 3491 mTranslator.translateWindowLayout(params); 3492 } 3493 if (params != null) { 3494 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3495 } 3496 mPendingConfiguration.seq = 0; 3497 //Log.d(TAG, ">>>>>> CALLING relayout"); 3498 if (params != null && mOrigWindowType != params.type) { 3499 // For compatibility with old apps, don't crash here. 3500 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3501 Slog.w(TAG, "Window type can not be changed after " 3502 + "the window is added; ignoring change of " + mView); 3503 params.type = mOrigWindowType; 3504 } 3505 } 3506 int relayoutResult = sWindowSession.relayout( 3507 mWindow, mSeq, params, 3508 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3509 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3510 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3511 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3512 mPendingConfiguration, mSurface); 3513 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3514 if (restore) { 3515 params.restore(); 3516 } 3517 3518 if (mTranslator != null) { 3519 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3520 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3521 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3522 } 3523 return relayoutResult; 3524 } 3525 3526 /** 3527 * {@inheritDoc} 3528 */ 3529 public void playSoundEffect(int effectId) { 3530 checkThread(); 3531 3532 try { 3533 final AudioManager audioManager = getAudioManager(); 3534 3535 switch (effectId) { 3536 case SoundEffectConstants.CLICK: 3537 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3538 return; 3539 case SoundEffectConstants.NAVIGATION_DOWN: 3540 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3541 return; 3542 case SoundEffectConstants.NAVIGATION_LEFT: 3543 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3544 return; 3545 case SoundEffectConstants.NAVIGATION_RIGHT: 3546 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3547 return; 3548 case SoundEffectConstants.NAVIGATION_UP: 3549 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3550 return; 3551 default: 3552 throw new IllegalArgumentException("unknown effect id " + effectId + 3553 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3554 } 3555 } catch (IllegalStateException e) { 3556 // Exception thrown by getAudioManager() when mView is null 3557 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3558 e.printStackTrace(); 3559 } 3560 } 3561 3562 /** 3563 * {@inheritDoc} 3564 */ 3565 public boolean performHapticFeedback(int effectId, boolean always) { 3566 try { 3567 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3568 } catch (RemoteException e) { 3569 return false; 3570 } 3571 } 3572 3573 /** 3574 * {@inheritDoc} 3575 */ 3576 public View focusSearch(View focused, int direction) { 3577 checkThread(); 3578 if (!(mView instanceof ViewGroup)) { 3579 return null; 3580 } 3581 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3582 } 3583 3584 public void debug() { 3585 mView.debug(); 3586 } 3587 3588 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3589 if (mView != null) { 3590 getGfxInfo(mView, info); 3591 } else { 3592 info[0] = info[1] = 0; 3593 } 3594 } 3595 3596 private void getGfxInfo(View view, int[] info) { 3597 DisplayList displayList = view.mDisplayList; 3598 info[0]++; 3599 if (displayList != null) { 3600 info[1] += displayList.getSize(); 3601 } 3602 3603 if (view instanceof ViewGroup) { 3604 ViewGroup group = (ViewGroup) view; 3605 3606 int count = group.getChildCount(); 3607 for (int i = 0; i < count; i++) { 3608 getGfxInfo(group.getChildAt(i), info); 3609 } 3610 } 3611 } 3612 3613 public void die(boolean immediate) { 3614 if (immediate) { 3615 doDie(); 3616 } else { 3617 sendEmptyMessage(DIE); 3618 } 3619 } 3620 3621 void doDie() { 3622 checkThread(); 3623 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3624 synchronized (this) { 3625 if (mAdded) { 3626 mAdded = false; 3627 dispatchDetachedFromWindow(); 3628 } 3629 3630 if (mAdded && !mFirst) { 3631 destroyHardwareRenderer(); 3632 3633 int viewVisibility = mView.getVisibility(); 3634 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3635 if (mWindowAttributesChanged || viewVisibilityChanged) { 3636 // If layout params have been changed, first give them 3637 // to the window manager to make sure it has the correct 3638 // animation info. 3639 try { 3640 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3641 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3642 sWindowSession.finishDrawing(mWindow); 3643 } 3644 } catch (RemoteException e) { 3645 } 3646 } 3647 3648 mSurface.release(); 3649 } 3650 } 3651 } 3652 3653 public void requestUpdateConfiguration(Configuration config) { 3654 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3655 sendMessage(msg); 3656 } 3657 3658 private void destroyHardwareRenderer() { 3659 if (mAttachInfo.mHardwareRenderer != null) { 3660 mAttachInfo.mHardwareRenderer.destroy(true); 3661 mAttachInfo.mHardwareRenderer = null; 3662 mAttachInfo.mHardwareAccelerated = false; 3663 } 3664 } 3665 3666 void dispatchImeFinishedEvent(int seq, boolean handled) { 3667 Message msg = obtainMessage(IME_FINISHED_EVENT); 3668 msg.arg1 = seq; 3669 msg.arg2 = handled ? 1 : 0; 3670 sendMessage(msg); 3671 } 3672 3673 public void dispatchResized(int w, int h, Rect coveredInsets, 3674 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3675 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3676 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3677 + " visibleInsets=" + visibleInsets.toShortString() 3678 + " reportDraw=" + reportDraw); 3679 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3680 if (mTranslator != null) { 3681 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3682 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3683 w *= mTranslator.applicationInvertedScale; 3684 h *= mTranslator.applicationInvertedScale; 3685 } 3686 msg.arg1 = w; 3687 msg.arg2 = h; 3688 ResizedInfo ri = new ResizedInfo(); 3689 ri.coveredInsets = new Rect(coveredInsets); 3690 ri.visibleInsets = new Rect(visibleInsets); 3691 ri.newConfig = newConfig; 3692 msg.obj = ri; 3693 sendMessage(msg); 3694 } 3695 3696 /** 3697 * Represents a pending input event that is waiting in a queue. 3698 * 3699 * Input events are processed in serial order by the timestamp specified by 3700 * {@link InputEvent#getEventTime()}. In general, the input dispatcher delivers 3701 * one input event to the application at a time and waits for the application 3702 * to finish handling it before delivering the next one. 3703 * 3704 * However, because the application or IME can synthesize and inject multiple 3705 * key events at a time without going through the input dispatcher, we end up 3706 * needing a queue on the application's side. 3707 */ 3708 private static final class QueuedInputEvent { 3709 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 3710 3711 public QueuedInputEvent mNext; 3712 3713 public InputEvent mEvent; 3714 public InputEventReceiver mReceiver; 3715 public int mFlags; 3716 3717 // Used for latency calculations. 3718 public long mReceiveTimeNanos; 3719 public long mDeliverTimeNanos; 3720 public long mDeliverPostImeTimeNanos; 3721 } 3722 3723 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 3724 InputEventReceiver receiver, int flags) { 3725 QueuedInputEvent q = mQueuedInputEventPool; 3726 if (q != null) { 3727 mQueuedInputEventPoolSize -= 1; 3728 mQueuedInputEventPool = q.mNext; 3729 q.mNext = null; 3730 } else { 3731 q = new QueuedInputEvent(); 3732 } 3733 3734 q.mEvent = event; 3735 q.mReceiver = receiver; 3736 q.mFlags = flags; 3737 return q; 3738 } 3739 3740 private void recycleQueuedInputEvent(QueuedInputEvent q) { 3741 q.mEvent = null; 3742 q.mReceiver = null; 3743 3744 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 3745 mQueuedInputEventPoolSize += 1; 3746 q.mNext = mQueuedInputEventPool; 3747 mQueuedInputEventPool = q; 3748 } 3749 } 3750 3751 void enqueueInputEvent(InputEvent event, 3752 InputEventReceiver receiver, int flags) { 3753 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 3754 3755 if (ViewDebug.DEBUG_LATENCY) { 3756 q.mReceiveTimeNanos = System.nanoTime(); 3757 q.mDeliverTimeNanos = 0; 3758 q.mDeliverPostImeTimeNanos = 0; 3759 } 3760 3761 // Always enqueue the input event in order, regardless of its time stamp. 3762 // We do this because the application or the IME may inject key events 3763 // in response to touch events and we want to ensure that the injected keys 3764 // are processed in the order they were received and we cannot trust that 3765 // the time stamp of injected events are monotonic. 3766 QueuedInputEvent last = mFirstPendingInputEvent; 3767 if (last == null) { 3768 mFirstPendingInputEvent = q; 3769 } else { 3770 while (last.mNext != null) { 3771 last = last.mNext; 3772 } 3773 last.mNext = q; 3774 } 3775 3776 scheduleProcessInputEvents(); 3777 } 3778 3779 private void scheduleProcessInputEvents() { 3780 if (!mProcessInputEventsScheduled) { 3781 mProcessInputEventsScheduled = true; 3782 sendEmptyMessage(DO_PROCESS_INPUT_EVENTS); 3783 } 3784 } 3785 3786 private void doProcessInputEvents() { 3787 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 3788 QueuedInputEvent q = mFirstPendingInputEvent; 3789 mFirstPendingInputEvent = q.mNext; 3790 q.mNext = null; 3791 mCurrentInputEvent = q; 3792 deliverInputEvent(q); 3793 } 3794 3795 // We are done processing all input events that we can process right now 3796 // so we can clear the pending flag immediately. 3797 if (mProcessInputEventsScheduled) { 3798 mProcessInputEventsScheduled = false; 3799 removeMessages(DO_PROCESS_INPUT_EVENTS); 3800 } 3801 } 3802 3803 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 3804 if (q != mCurrentInputEvent) { 3805 throw new IllegalStateException("finished input event out of order"); 3806 } 3807 3808 if (ViewDebug.DEBUG_LATENCY) { 3809 final long now = System.nanoTime(); 3810 final long eventTime = q.mEvent.getEventTimeNano(); 3811 final StringBuilder msg = new StringBuilder(); 3812 msg.append("Spent "); 3813 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 3814 msg.append("ms processing "); 3815 if (q.mEvent instanceof KeyEvent) { 3816 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 3817 msg.append("key event, action="); 3818 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 3819 } else { 3820 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 3821 msg.append("motion event, action="); 3822 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 3823 msg.append(", historySize="); 3824 msg.append(motionEvent.getHistorySize()); 3825 } 3826 msg.append(", handled="); 3827 msg.append(handled); 3828 msg.append(", received at +"); 3829 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 3830 if (q.mDeliverTimeNanos != 0) { 3831 msg.append("ms, delivered at +"); 3832 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 3833 } 3834 if (q.mDeliverPostImeTimeNanos != 0) { 3835 msg.append("ms, delivered post IME at +"); 3836 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 3837 } 3838 msg.append("ms, finished at +"); 3839 msg.append((now - eventTime) * 0.000001f); 3840 msg.append("ms."); 3841 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 3842 } 3843 3844 if (q.mReceiver != null) { 3845 q.mReceiver.finishInputEvent(q.mEvent, handled); 3846 } else { 3847 q.mEvent.recycleIfNeededAfterDispatch(); 3848 } 3849 3850 recycleQueuedInputEvent(q); 3851 3852 mCurrentInputEvent = null; 3853 if (mFirstPendingInputEvent != null) { 3854 scheduleProcessInputEvents(); 3855 } 3856 } 3857 3858 final class WindowInputEventReceiver extends InputEventReceiver { 3859 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 3860 super(inputChannel, looper); 3861 } 3862 3863 @Override 3864 public void onInputEvent(InputEvent event) { 3865 enqueueInputEvent(event, this, 0); 3866 } 3867 } 3868 WindowInputEventReceiver mInputEventReceiver; 3869 3870 public void dispatchKey(KeyEvent event) { 3871 enqueueInputEvent(event, null, 0); 3872 } 3873 3874 public void dispatchAppVisibility(boolean visible) { 3875 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3876 msg.arg1 = visible ? 1 : 0; 3877 sendMessage(msg); 3878 } 3879 3880 public void dispatchGetNewSurface() { 3881 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3882 sendMessage(msg); 3883 } 3884 3885 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3886 Message msg = Message.obtain(); 3887 msg.what = WINDOW_FOCUS_CHANGED; 3888 msg.arg1 = hasFocus ? 1 : 0; 3889 msg.arg2 = inTouchMode ? 1 : 0; 3890 sendMessage(msg); 3891 } 3892 3893 public void dispatchCloseSystemDialogs(String reason) { 3894 Message msg = Message.obtain(); 3895 msg.what = CLOSE_SYSTEM_DIALOGS; 3896 msg.obj = reason; 3897 sendMessage(msg); 3898 } 3899 3900 public void dispatchDragEvent(DragEvent event) { 3901 final int what; 3902 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3903 what = DISPATCH_DRAG_LOCATION_EVENT; 3904 removeMessages(what); 3905 } else { 3906 what = DISPATCH_DRAG_EVENT; 3907 } 3908 Message msg = obtainMessage(what, event); 3909 sendMessage(msg); 3910 } 3911 3912 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 3913 int localValue, int localChanges) { 3914 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 3915 args.seq = seq; 3916 args.globalVisibility = globalVisibility; 3917 args.localValue = localValue; 3918 args.localChanges = localChanges; 3919 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, args)); 3920 } 3921 3922 /** 3923 * The window is getting focus so if there is anything focused/selected 3924 * send an {@link AccessibilityEvent} to announce that. 3925 */ 3926 private void sendAccessibilityEvents() { 3927 if (!mAccessibilityManager.isEnabled()) { 3928 return; 3929 } 3930 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3931 View focusedView = mView.findFocus(); 3932 if (focusedView != null && focusedView != mView) { 3933 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3934 } 3935 } 3936 3937 /** 3938 * Post a callback to send a 3939 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3940 * This event is send at most once every 3941 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3942 */ 3943 private void postSendWindowContentChangedCallback() { 3944 if (mSendWindowContentChangedAccessibilityEvent == null) { 3945 mSendWindowContentChangedAccessibilityEvent = 3946 new SendWindowContentChangedAccessibilityEvent(); 3947 } 3948 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3949 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3950 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3951 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3952 } 3953 } 3954 3955 /** 3956 * Remove a posted callback to send a 3957 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3958 */ 3959 private void removeSendWindowContentChangedCallback() { 3960 if (mSendWindowContentChangedAccessibilityEvent != null) { 3961 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3962 } 3963 } 3964 3965 public boolean showContextMenuForChild(View originalView) { 3966 return false; 3967 } 3968 3969 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3970 return null; 3971 } 3972 3973 public void createContextMenu(ContextMenu menu) { 3974 } 3975 3976 public void childDrawableStateChanged(View child) { 3977 } 3978 3979 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3980 if (mView == null) { 3981 return false; 3982 } 3983 mAccessibilityManager.sendAccessibilityEvent(event); 3984 return true; 3985 } 3986 3987 void checkThread() { 3988 if (mThread != Thread.currentThread()) { 3989 throw new CalledFromWrongThreadException( 3990 "Only the original thread that created a view hierarchy can touch its views."); 3991 } 3992 } 3993 3994 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 3995 // ViewAncestor never intercepts touch event, so this can be a no-op 3996 } 3997 3998 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 3999 boolean immediate) { 4000 return scrollToRectOrFocus(rectangle, immediate); 4001 } 4002 4003 class TakenSurfaceHolder extends BaseSurfaceHolder { 4004 @Override 4005 public boolean onAllowLockCanvas() { 4006 return mDrawingAllowed; 4007 } 4008 4009 @Override 4010 public void onRelayoutContainer() { 4011 // Not currently interesting -- from changing between fixed and layout size. 4012 } 4013 4014 public void setFormat(int format) { 4015 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4016 } 4017 4018 public void setType(int type) { 4019 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4020 } 4021 4022 @Override 4023 public void onUpdateSurface() { 4024 // We take care of format and type changes on our own. 4025 throw new IllegalStateException("Shouldn't be here"); 4026 } 4027 4028 public boolean isCreating() { 4029 return mIsCreating; 4030 } 4031 4032 @Override 4033 public void setFixedSize(int width, int height) { 4034 throw new UnsupportedOperationException( 4035 "Currently only support sizing from layout"); 4036 } 4037 4038 public void setKeepScreenOn(boolean screenOn) { 4039 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4040 } 4041 } 4042 4043 static class InputMethodCallback extends IInputMethodCallback.Stub { 4044 private WeakReference<ViewRootImpl> mViewAncestor; 4045 4046 public InputMethodCallback(ViewRootImpl viewAncestor) { 4047 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4048 } 4049 4050 public void finishedEvent(int seq, boolean handled) { 4051 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4052 if (viewAncestor != null) { 4053 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4054 } 4055 } 4056 4057 public void sessionCreated(IInputMethodSession session) { 4058 // Stub -- not for use in the client. 4059 } 4060 } 4061 4062 static class W extends IWindow.Stub { 4063 private final WeakReference<ViewRootImpl> mViewAncestor; 4064 4065 W(ViewRootImpl viewAncestor) { 4066 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4067 } 4068 4069 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4070 boolean reportDraw, Configuration newConfig) { 4071 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4072 if (viewAncestor != null) { 4073 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4074 newConfig); 4075 } 4076 } 4077 4078 public void dispatchAppVisibility(boolean visible) { 4079 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4080 if (viewAncestor != null) { 4081 viewAncestor.dispatchAppVisibility(visible); 4082 } 4083 } 4084 4085 public void dispatchGetNewSurface() { 4086 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4087 if (viewAncestor != null) { 4088 viewAncestor.dispatchGetNewSurface(); 4089 } 4090 } 4091 4092 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4093 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4094 if (viewAncestor != null) { 4095 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4096 } 4097 } 4098 4099 private static int checkCallingPermission(String permission) { 4100 try { 4101 return ActivityManagerNative.getDefault().checkPermission( 4102 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4103 } catch (RemoteException e) { 4104 return PackageManager.PERMISSION_DENIED; 4105 } 4106 } 4107 4108 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4109 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4110 if (viewAncestor != null) { 4111 final View view = viewAncestor.mView; 4112 if (view != null) { 4113 if (checkCallingPermission(Manifest.permission.DUMP) != 4114 PackageManager.PERMISSION_GRANTED) { 4115 throw new SecurityException("Insufficient permissions to invoke" 4116 + " executeCommand() from pid=" + Binder.getCallingPid() 4117 + ", uid=" + Binder.getCallingUid()); 4118 } 4119 4120 OutputStream clientStream = null; 4121 try { 4122 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4123 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4124 } catch (IOException e) { 4125 e.printStackTrace(); 4126 } finally { 4127 if (clientStream != null) { 4128 try { 4129 clientStream.close(); 4130 } catch (IOException e) { 4131 e.printStackTrace(); 4132 } 4133 } 4134 } 4135 } 4136 } 4137 } 4138 4139 public void closeSystemDialogs(String reason) { 4140 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4141 if (viewAncestor != null) { 4142 viewAncestor.dispatchCloseSystemDialogs(reason); 4143 } 4144 } 4145 4146 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4147 boolean sync) { 4148 if (sync) { 4149 try { 4150 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4151 } catch (RemoteException e) { 4152 } 4153 } 4154 } 4155 4156 public void dispatchWallpaperCommand(String action, int x, int y, 4157 int z, Bundle extras, boolean sync) { 4158 if (sync) { 4159 try { 4160 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4161 } catch (RemoteException e) { 4162 } 4163 } 4164 } 4165 4166 /* Drag/drop */ 4167 public void dispatchDragEvent(DragEvent event) { 4168 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4169 if (viewAncestor != null) { 4170 viewAncestor.dispatchDragEvent(event); 4171 } 4172 } 4173 4174 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4175 int localValue, int localChanges) { 4176 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4177 if (viewAncestor != null) { 4178 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4179 localValue, localChanges); 4180 } 4181 } 4182 } 4183 4184 /** 4185 * Maintains state information for a single trackball axis, generating 4186 * discrete (DPAD) movements based on raw trackball motion. 4187 */ 4188 static final class TrackballAxis { 4189 /** 4190 * The maximum amount of acceleration we will apply. 4191 */ 4192 static final float MAX_ACCELERATION = 20; 4193 4194 /** 4195 * The maximum amount of time (in milliseconds) between events in order 4196 * for us to consider the user to be doing fast trackball movements, 4197 * and thus apply an acceleration. 4198 */ 4199 static final long FAST_MOVE_TIME = 150; 4200 4201 /** 4202 * Scaling factor to the time (in milliseconds) between events to how 4203 * much to multiple/divide the current acceleration. When movement 4204 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4205 * FAST_MOVE_TIME it divides it. 4206 */ 4207 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4208 4209 float position; 4210 float absPosition; 4211 float acceleration = 1; 4212 long lastMoveTime = 0; 4213 int step; 4214 int dir; 4215 int nonAccelMovement; 4216 4217 void reset(int _step) { 4218 position = 0; 4219 acceleration = 1; 4220 lastMoveTime = 0; 4221 step = _step; 4222 dir = 0; 4223 } 4224 4225 /** 4226 * Add trackball movement into the state. If the direction of movement 4227 * has been reversed, the state is reset before adding the 4228 * movement (so that you don't have to compensate for any previously 4229 * collected movement before see the result of the movement in the 4230 * new direction). 4231 * 4232 * @return Returns the absolute value of the amount of movement 4233 * collected so far. 4234 */ 4235 float collect(float off, long time, String axis) { 4236 long normTime; 4237 if (off > 0) { 4238 normTime = (long)(off * FAST_MOVE_TIME); 4239 if (dir < 0) { 4240 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4241 position = 0; 4242 step = 0; 4243 acceleration = 1; 4244 lastMoveTime = 0; 4245 } 4246 dir = 1; 4247 } else if (off < 0) { 4248 normTime = (long)((-off) * FAST_MOVE_TIME); 4249 if (dir > 0) { 4250 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4251 position = 0; 4252 step = 0; 4253 acceleration = 1; 4254 lastMoveTime = 0; 4255 } 4256 dir = -1; 4257 } else { 4258 normTime = 0; 4259 } 4260 4261 // The number of milliseconds between each movement that is 4262 // considered "normal" and will not result in any acceleration 4263 // or deceleration, scaled by the offset we have here. 4264 if (normTime > 0) { 4265 long delta = time - lastMoveTime; 4266 lastMoveTime = time; 4267 float acc = acceleration; 4268 if (delta < normTime) { 4269 // The user is scrolling rapidly, so increase acceleration. 4270 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4271 if (scale > 1) acc *= scale; 4272 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4273 + off + " normTime=" + normTime + " delta=" + delta 4274 + " scale=" + scale + " acc=" + acc); 4275 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4276 } else { 4277 // The user is scrolling slowly, so decrease acceleration. 4278 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4279 if (scale > 1) acc /= scale; 4280 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4281 + off + " normTime=" + normTime + " delta=" + delta 4282 + " scale=" + scale + " acc=" + acc); 4283 acceleration = acc > 1 ? acc : 1; 4284 } 4285 } 4286 position += off; 4287 return (absPosition = Math.abs(position)); 4288 } 4289 4290 /** 4291 * Generate the number of discrete movement events appropriate for 4292 * the currently collected trackball movement. 4293 * 4294 * @param precision The minimum movement required to generate the 4295 * first discrete movement. 4296 * 4297 * @return Returns the number of discrete movements, either positive 4298 * or negative, or 0 if there is not enough trackball movement yet 4299 * for a discrete movement. 4300 */ 4301 int generate(float precision) { 4302 int movement = 0; 4303 nonAccelMovement = 0; 4304 do { 4305 final int dir = position >= 0 ? 1 : -1; 4306 switch (step) { 4307 // If we are going to execute the first step, then we want 4308 // to do this as soon as possible instead of waiting for 4309 // a full movement, in order to make things look responsive. 4310 case 0: 4311 if (absPosition < precision) { 4312 return movement; 4313 } 4314 movement += dir; 4315 nonAccelMovement += dir; 4316 step = 1; 4317 break; 4318 // If we have generated the first movement, then we need 4319 // to wait for the second complete trackball motion before 4320 // generating the second discrete movement. 4321 case 1: 4322 if (absPosition < 2) { 4323 return movement; 4324 } 4325 movement += dir; 4326 nonAccelMovement += dir; 4327 position += dir > 0 ? -2 : 2; 4328 absPosition = Math.abs(position); 4329 step = 2; 4330 break; 4331 // After the first two, we generate discrete movements 4332 // consistently with the trackball, applying an acceleration 4333 // if the trackball is moving quickly. This is a simple 4334 // acceleration on top of what we already compute based 4335 // on how quickly the wheel is being turned, to apply 4336 // a longer increasing acceleration to continuous movement 4337 // in one direction. 4338 default: 4339 if (absPosition < 1) { 4340 return movement; 4341 } 4342 movement += dir; 4343 position += dir >= 0 ? -1 : 1; 4344 absPosition = Math.abs(position); 4345 float acc = acceleration; 4346 acc *= 1.1f; 4347 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4348 break; 4349 } 4350 } while (true); 4351 } 4352 } 4353 4354 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4355 public CalledFromWrongThreadException(String msg) { 4356 super(msg); 4357 } 4358 } 4359 4360 private SurfaceHolder mHolder = new SurfaceHolder() { 4361 // we only need a SurfaceHolder for opengl. it would be nice 4362 // to implement everything else though, especially the callback 4363 // support (opengl doesn't make use of it right now, but eventually 4364 // will). 4365 public Surface getSurface() { 4366 return mSurface; 4367 } 4368 4369 public boolean isCreating() { 4370 return false; 4371 } 4372 4373 public void addCallback(Callback callback) { 4374 } 4375 4376 public void removeCallback(Callback callback) { 4377 } 4378 4379 public void setFixedSize(int width, int height) { 4380 } 4381 4382 public void setSizeFromLayout() { 4383 } 4384 4385 public void setFormat(int format) { 4386 } 4387 4388 public void setType(int type) { 4389 } 4390 4391 public void setKeepScreenOn(boolean screenOn) { 4392 } 4393 4394 public Canvas lockCanvas() { 4395 return null; 4396 } 4397 4398 public Canvas lockCanvas(Rect dirty) { 4399 return null; 4400 } 4401 4402 public void unlockCanvasAndPost(Canvas canvas) { 4403 } 4404 public Rect getSurfaceFrame() { 4405 return null; 4406 } 4407 }; 4408 4409 static RunQueue getRunQueue() { 4410 RunQueue rq = sRunQueues.get(); 4411 if (rq != null) { 4412 return rq; 4413 } 4414 rq = new RunQueue(); 4415 sRunQueues.set(rq); 4416 return rq; 4417 } 4418 4419 /** 4420 * @hide 4421 */ 4422 static final class RunQueue { 4423 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4424 4425 void post(Runnable action) { 4426 postDelayed(action, 0); 4427 } 4428 4429 void postDelayed(Runnable action, long delayMillis) { 4430 HandlerAction handlerAction = new HandlerAction(); 4431 handlerAction.action = action; 4432 handlerAction.delay = delayMillis; 4433 4434 synchronized (mActions) { 4435 mActions.add(handlerAction); 4436 } 4437 } 4438 4439 void removeCallbacks(Runnable action) { 4440 final HandlerAction handlerAction = new HandlerAction(); 4441 handlerAction.action = action; 4442 4443 synchronized (mActions) { 4444 final ArrayList<HandlerAction> actions = mActions; 4445 4446 while (actions.remove(handlerAction)) { 4447 // Keep going 4448 } 4449 } 4450 } 4451 4452 void executeActions(Handler handler) { 4453 synchronized (mActions) { 4454 final ArrayList<HandlerAction> actions = mActions; 4455 final int count = actions.size(); 4456 4457 for (int i = 0; i < count; i++) { 4458 final HandlerAction handlerAction = actions.get(i); 4459 handler.postDelayed(handlerAction.action, handlerAction.delay); 4460 } 4461 4462 actions.clear(); 4463 } 4464 } 4465 4466 private static class HandlerAction { 4467 Runnable action; 4468 long delay; 4469 4470 @Override 4471 public boolean equals(Object o) { 4472 if (this == o) return true; 4473 if (o == null || getClass() != o.getClass()) return false; 4474 4475 HandlerAction that = (HandlerAction) o; 4476 return !(action != null ? !action.equals(that.action) : that.action != null); 4477 4478 } 4479 4480 @Override 4481 public int hashCode() { 4482 int result = action != null ? action.hashCode() : 0; 4483 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4484 return result; 4485 } 4486 } 4487 } 4488 4489 /** 4490 * Class for managing the accessibility interaction connection 4491 * based on the global accessibility state. 4492 */ 4493 final class AccessibilityInteractionConnectionManager 4494 implements AccessibilityStateChangeListener { 4495 public void onAccessibilityStateChanged(boolean enabled) { 4496 if (enabled) { 4497 ensureConnection(); 4498 } else { 4499 ensureNoConnection(); 4500 } 4501 } 4502 4503 public void ensureConnection() { 4504 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4505 if (!registered) { 4506 mAttachInfo.mAccessibilityWindowId = 4507 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4508 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4509 } 4510 } 4511 4512 public void ensureNoConnection() { 4513 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4514 if (registered) { 4515 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4516 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4517 } 4518 } 4519 } 4520 4521 /** 4522 * This class is an interface this ViewAncestor provides to the 4523 * AccessibilityManagerService to the latter can interact with 4524 * the view hierarchy in this ViewAncestor. 4525 */ 4526 static final class AccessibilityInteractionConnection 4527 extends IAccessibilityInteractionConnection.Stub { 4528 private final WeakReference<ViewRootImpl> mViewRootImpl; 4529 4530 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 4531 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 4532 } 4533 4534 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 4535 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4536 int interrogatingPid, long interrogatingTid) { 4537 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4538 if (viewRootImpl != null && viewRootImpl.mView != null) { 4539 viewRootImpl.getAccessibilityInteractionController() 4540 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 4541 interactionId, callback, interrogatingPid, interrogatingTid); 4542 } 4543 } 4544 4545 public void performAccessibilityAction(long accessibilityNodeId, int action, 4546 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4547 int interogatingPid, long interrogatingTid) { 4548 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4549 if (viewRootImpl != null && viewRootImpl.mView != null) { 4550 viewRootImpl.getAccessibilityInteractionController() 4551 .performAccessibilityActionClientThread(accessibilityNodeId, action, 4552 interactionId, callback, interogatingPid, interrogatingTid); 4553 } 4554 } 4555 4556 public void findAccessibilityNodeInfoByViewId(int viewId, 4557 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4558 int interrogatingPid, long interrogatingTid) { 4559 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4560 if (viewRootImpl != null && viewRootImpl.mView != null) { 4561 viewRootImpl.getAccessibilityInteractionController() 4562 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4563 interrogatingPid, interrogatingTid); 4564 } 4565 } 4566 4567 public void findAccessibilityNodeInfosByText(String text, long accessibilityNodeId, 4568 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4569 int interrogatingPid, long interrogatingTid) { 4570 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4571 if (viewRootImpl != null && viewRootImpl.mView != null) { 4572 viewRootImpl.getAccessibilityInteractionController() 4573 .findAccessibilityNodeInfosByTextClientThread(text, accessibilityNodeId, 4574 interactionId, callback, interrogatingPid, interrogatingTid); 4575 } 4576 } 4577 } 4578 4579 /** 4580 * Class for managing accessibility interactions initiated from the system 4581 * and targeting the view hierarchy. A *ClientThread method is to be 4582 * called from the interaction connection this ViewAncestor gives the 4583 * system to talk to it and a corresponding *UiThread method that is executed 4584 * on the UI thread. 4585 */ 4586 final class AccessibilityInteractionController { 4587 private static final int POOL_SIZE = 5; 4588 4589 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4590 new ArrayList<AccessibilityNodeInfo>(); 4591 4592 // Reusable poolable arguments for interacting with the view hierarchy 4593 // to fit more arguments than Message and to avoid sharing objects between 4594 // two messages since several threads can send messages concurrently. 4595 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4596 new PoolableManager<SomeArgs>() { 4597 public SomeArgs newInstance() { 4598 return new SomeArgs(); 4599 } 4600 4601 public void onAcquired(SomeArgs info) { 4602 /* do nothing */ 4603 } 4604 4605 public void onReleased(SomeArgs info) { 4606 info.clear(); 4607 } 4608 }, POOL_SIZE) 4609 ); 4610 4611 public class SomeArgs implements Poolable<SomeArgs> { 4612 private SomeArgs mNext; 4613 private boolean mIsPooled; 4614 4615 public Object arg1; 4616 public Object arg2; 4617 public int argi1; 4618 public int argi2; 4619 public int argi3; 4620 4621 public SomeArgs getNextPoolable() { 4622 return mNext; 4623 } 4624 4625 public boolean isPooled() { 4626 return mIsPooled; 4627 } 4628 4629 public void setNextPoolable(SomeArgs args) { 4630 mNext = args; 4631 } 4632 4633 public void setPooled(boolean isPooled) { 4634 mIsPooled = isPooled; 4635 } 4636 4637 private void clear() { 4638 arg1 = null; 4639 arg2 = null; 4640 argi1 = 0; 4641 argi2 = 0; 4642 argi3 = 0; 4643 } 4644 } 4645 4646 public void findAccessibilityNodeInfoByAccessibilityIdClientThread( 4647 long accessibilityNodeId, int interactionId, 4648 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4649 long interrogatingTid) { 4650 Message message = Message.obtain(); 4651 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4652 SomeArgs args = mPool.acquire(); 4653 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4654 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4655 args.argi3 = interactionId; 4656 args.arg1 = callback; 4657 message.obj = args; 4658 // If the interrogation is performed by the same thread as the main UI 4659 // thread in this process, set the message as a static reference so 4660 // after this call completes the same thread but in the interrogating 4661 // client can handle the message to generate the result. 4662 if (interrogatingPid == Process.myPid() 4663 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4664 message.setTarget(ViewRootImpl.this); 4665 AccessibilityInteractionClient.getInstanceForThread( 4666 interrogatingTid).setSameThreadMessage(message); 4667 } else { 4668 sendMessage(message); 4669 } 4670 } 4671 4672 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4673 SomeArgs args = (SomeArgs) message.obj; 4674 final int accessibilityViewId = args.argi1; 4675 final int virtualDescendantId = args.argi2; 4676 final int interactionId = args.argi3; 4677 final IAccessibilityInteractionConnectionCallback callback = 4678 (IAccessibilityInteractionConnectionCallback) args.arg1; 4679 mPool.release(args); 4680 AccessibilityNodeInfo info = null; 4681 try { 4682 View target = findViewByAccessibilityId(accessibilityViewId); 4683 if (target != null && target.getVisibility() == View.VISIBLE) { 4684 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4685 if (provider != null) { 4686 info = provider.createAccessibilityNodeInfo(virtualDescendantId); 4687 } else if (virtualDescendantId == View.NO_ID) { 4688 info = target.createAccessibilityNodeInfo(); 4689 } 4690 } 4691 } finally { 4692 try { 4693 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4694 } catch (RemoteException re) { 4695 /* ignore - the other side will time out */ 4696 } 4697 } 4698 } 4699 4700 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4701 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4702 long interrogatingTid) { 4703 Message message = Message.obtain(); 4704 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4705 message.arg1 = viewId; 4706 message.arg2 = interactionId; 4707 message.obj = callback; 4708 // If the interrogation is performed by the same thread as the main UI 4709 // thread in this process, set the message as a static reference so 4710 // after this call completes the same thread but in the interrogating 4711 // client can handle the message to generate the result. 4712 if (interrogatingPid == Process.myPid() 4713 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4714 message.setTarget(ViewRootImpl.this); 4715 AccessibilityInteractionClient.getInstanceForThread( 4716 interrogatingTid).setSameThreadMessage(message); 4717 } else { 4718 sendMessage(message); 4719 } 4720 } 4721 4722 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4723 final int viewId = message.arg1; 4724 final int interactionId = message.arg2; 4725 final IAccessibilityInteractionConnectionCallback callback = 4726 (IAccessibilityInteractionConnectionCallback) message.obj; 4727 4728 AccessibilityNodeInfo info = null; 4729 try { 4730 View root = ViewRootImpl.this.mView; 4731 View target = root.findViewById(viewId); 4732 if (target != null && target.getVisibility() == View.VISIBLE) { 4733 info = target.createAccessibilityNodeInfo(); 4734 } 4735 } finally { 4736 try { 4737 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4738 } catch (RemoteException re) { 4739 /* ignore - the other side will time out */ 4740 } 4741 } 4742 } 4743 4744 public void findAccessibilityNodeInfosByTextClientThread(String text, 4745 long accessibilityNodeId, int interactionId, 4746 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4747 long interrogatingTid) { 4748 Message message = Message.obtain(); 4749 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT; 4750 SomeArgs args = mPool.acquire(); 4751 args.arg1 = text; 4752 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4753 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4754 args.argi3 = interactionId; 4755 args.arg2 = callback; 4756 message.obj = args; 4757 // If the interrogation is performed by the same thread as the main UI 4758 // thread in this process, set the message as a static reference so 4759 // after this call completes the same thread but in the interrogating 4760 // client can handle the message to generate the result. 4761 if (interrogatingPid == Process.myPid() 4762 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4763 message.setTarget(ViewRootImpl.this); 4764 AccessibilityInteractionClient.getInstanceForThread( 4765 interrogatingTid).setSameThreadMessage(message); 4766 } else { 4767 sendMessage(message); 4768 } 4769 } 4770 4771 public void findAccessibilityNodeInfosByTextUiThread(Message message) { 4772 SomeArgs args = (SomeArgs) message.obj; 4773 final String text = (String) args.arg1; 4774 final int accessibilityViewId = args.argi1; 4775 final int virtualDescendantId = args.argi2; 4776 final int interactionId = args.argi3; 4777 final IAccessibilityInteractionConnectionCallback callback = 4778 (IAccessibilityInteractionConnectionCallback) args.arg2; 4779 mPool.release(args); 4780 List<AccessibilityNodeInfo> infos = null; 4781 try { 4782 View target = null; 4783 if (accessibilityViewId != View.NO_ID) { 4784 target = findViewByAccessibilityId(accessibilityViewId); 4785 } else { 4786 target = ViewRootImpl.this.mView; 4787 } 4788 if (target != null && target.getVisibility() == View.VISIBLE) { 4789 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4790 if (provider != null) { 4791 infos = provider.findAccessibilityNodeInfosByText(text, 4792 virtualDescendantId); 4793 } else if (virtualDescendantId == View.NO_ID) { 4794 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4795 foundViews.clear(); 4796 target.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4797 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION 4798 | View.FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS); 4799 if (!foundViews.isEmpty()) { 4800 infos = mTempAccessibilityNodeInfoList; 4801 infos.clear(); 4802 final int viewCount = foundViews.size(); 4803 for (int i = 0; i < viewCount; i++) { 4804 View foundView = foundViews.get(i); 4805 if (foundView.getVisibility() == View.VISIBLE) { 4806 provider = foundView.getAccessibilityNodeProvider(); 4807 if (provider != null) { 4808 List<AccessibilityNodeInfo> infosFromProvider = 4809 provider.findAccessibilityNodeInfosByText(text, 4810 virtualDescendantId); 4811 if (infosFromProvider != null) { 4812 infos.addAll(infosFromProvider); 4813 } 4814 } else { 4815 infos.add(foundView.createAccessibilityNodeInfo()); 4816 } 4817 } 4818 } 4819 } 4820 } 4821 } 4822 } finally { 4823 try { 4824 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4825 } catch (RemoteException re) { 4826 /* ignore - the other side will time out */ 4827 } 4828 } 4829 } 4830 4831 public void performAccessibilityActionClientThread(long accessibilityNodeId, int action, 4832 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4833 int interogatingPid, long interrogatingTid) { 4834 Message message = Message.obtain(); 4835 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4836 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4837 message.arg2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4838 SomeArgs args = mPool.acquire(); 4839 args.argi1 = action; 4840 args.argi2 = interactionId; 4841 args.arg1 = callback; 4842 message.obj = args; 4843 // If the interrogation is performed by the same thread as the main UI 4844 // thread in this process, set the message as a static reference so 4845 // after this call completes the same thread but in the interrogating 4846 // client can handle the message to generate the result. 4847 if (interogatingPid == Process.myPid() 4848 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4849 message.setTarget(ViewRootImpl.this); 4850 AccessibilityInteractionClient.getInstanceForThread( 4851 interrogatingTid).setSameThreadMessage(message); 4852 } else { 4853 sendMessage(message); 4854 } 4855 } 4856 4857 public void perfromAccessibilityActionUiThread(Message message) { 4858 final int accessibilityViewId = message.arg1; 4859 final int virtualDescendantId = message.arg2; 4860 SomeArgs args = (SomeArgs) message.obj; 4861 final int action = args.argi1; 4862 final int interactionId = args.argi2; 4863 final IAccessibilityInteractionConnectionCallback callback = 4864 (IAccessibilityInteractionConnectionCallback) args.arg1; 4865 mPool.release(args); 4866 boolean succeeded = false; 4867 try { 4868 View target = findViewByAccessibilityId(accessibilityViewId); 4869 if (target != null && target.getVisibility() == View.VISIBLE) { 4870 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4871 if (provider != null) { 4872 succeeded = provider.performAccessibilityAction(action, 4873 virtualDescendantId); 4874 } else if (virtualDescendantId == View.NO_ID) { 4875 switch (action) { 4876 case AccessibilityNodeInfo.ACTION_FOCUS: { 4877 if (!target.hasFocus()) { 4878 // Get out of touch mode since accessibility 4879 // wants to move focus around. 4880 ensureTouchMode(false); 4881 succeeded = target.requestFocus(); 4882 } 4883 } break; 4884 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4885 if (target.hasFocus()) { 4886 target.clearFocus(); 4887 succeeded = !target.isFocused(); 4888 } 4889 } break; 4890 case AccessibilityNodeInfo.ACTION_SELECT: { 4891 if (!target.isSelected()) { 4892 target.setSelected(true); 4893 succeeded = target.isSelected(); 4894 } 4895 } break; 4896 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4897 if (target.isSelected()) { 4898 target.setSelected(false); 4899 succeeded = !target.isSelected(); 4900 } 4901 } break; 4902 } 4903 } 4904 } 4905 } finally { 4906 try { 4907 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4908 } catch (RemoteException re) { 4909 /* ignore - the other side will time out */ 4910 } 4911 } 4912 } 4913 4914 private View findViewByAccessibilityId(int accessibilityId) { 4915 View root = ViewRootImpl.this.mView; 4916 if (root == null) { 4917 return null; 4918 } 4919 View foundView = root.findViewByAccessibilityId(accessibilityId); 4920 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 4921 return null; 4922 } 4923 return foundView; 4924 } 4925 } 4926 4927 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4928 public volatile boolean mIsPending; 4929 4930 public void run() { 4931 if (mView != null) { 4932 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4933 mIsPending = false; 4934 } 4935 } 4936 } 4937} 4938