ViewRootImpl.java revision 32cbc3855c2a971aa5a801fd339fb6a37db91a1a
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.SparseArray; 61import android.util.TypedValue; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityInteractionClient; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.IInputMethodCallback; 80import com.android.internal.view.IInputMethodSession; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.io.PrintWriter; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.List; 89 90/** 91 * The top of a view hierarchy, implementing the needed protocol between View 92 * and the WindowManager. This is for the most part an internal implementation 93 * detail of {@link WindowManagerImpl}. 94 * 95 * {@hide} 96 */ 97@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 98public final class ViewRootImpl extends Handler implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 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 private static final boolean WATCH_POINTER = false; 114 115 /** 116 * Set this system property to true to force the view hierarchy to render 117 * at 60 Hz. This can be used to measure the potential framerate. 118 */ 119 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 120 121 private static final boolean MEASURE_LATENCY = false; 122 private static LatencyTimer lt; 123 124 /** 125 * Maximum time we allow the user to roll the trackball enough to generate 126 * a key event, before resetting the counters. 127 */ 128 static final int MAX_TRACKBALL_DELAY = 250; 129 130 static IWindowSession sWindowSession; 131 132 static final Object mStaticInit = new Object(); 133 static boolean mInitialized = false; 134 135 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 136 137 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 138 static boolean sFirstDrawComplete = false; 139 140 static final ArrayList<ComponentCallbacks> sConfigCallbacks 141 = new ArrayList<ComponentCallbacks>(); 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 int mLastJoystickXDirection; 148 int mLastJoystickYDirection; 149 int mLastJoystickXKeyCode; 150 int mLastJoystickYKeyCode; 151 152 final int[] mTmpLocation = new int[2]; 153 154 final TypedValue mTmpValue = new TypedValue(); 155 156 final InputMethodCallback mInputMethodCallback; 157 final Thread mThread; 158 159 final WindowLeaked mLocation; 160 161 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 162 163 final W mWindow; 164 165 final int mTargetSdkVersion; 166 167 int mSeq; 168 169 View mView; 170 View mFocusedView; 171 View mRealFocusedView; // this is not set to null in touch mode 172 int mViewVisibility; 173 boolean mAppVisible = true; 174 int mOrigWindowType = -1; 175 176 // Set to true if the owner of this window is in the stopped state, 177 // so the window should no longer be active. 178 boolean mStopped = false; 179 180 boolean mLastInCompatMode = false; 181 182 SurfaceHolder.Callback2 mSurfaceHolderCallback; 183 BaseSurfaceHolder mSurfaceHolder; 184 boolean mIsCreating; 185 boolean mDrawingAllowed; 186 187 final Region mTransparentRegion; 188 final Region mPreviousTransparentRegion; 189 190 int mWidth; 191 int mHeight; 192 Rect mDirty; 193 final Rect mCurrentDirty = new Rect(); 194 final Rect mPreviousDirty = new Rect(); 195 boolean mIsAnimating; 196 197 CompatibilityInfo.Translator mTranslator; 198 199 final View.AttachInfo mAttachInfo; 200 InputChannel mInputChannel; 201 InputQueue.Callback mInputQueueCallback; 202 InputQueue mInputQueue; 203 FallbackEventHandler mFallbackEventHandler; 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 mLastDrawDurationNanos; 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 mProcessInputEventsPending; 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 } 378 379 public static void addFirstDrawHandler(Runnable callback) { 380 synchronized (sFirstDrawHandlers) { 381 if (!sFirstDrawComplete) { 382 sFirstDrawHandlers.add(callback); 383 } 384 } 385 } 386 387 public static void addConfigCallback(ComponentCallbacks callback) { 388 synchronized (sConfigCallbacks) { 389 sConfigCallbacks.add(callback); 390 } 391 } 392 393 // FIXME for perf testing only 394 private boolean mProfile = false; 395 396 /** 397 * Call this to profile the next traversal call. 398 * FIXME for perf testing only. Remove eventually 399 */ 400 public void profile() { 401 mProfile = true; 402 } 403 404 /** 405 * Indicates whether we are in touch mode. Calling this method triggers an IPC 406 * call and should be avoided whenever possible. 407 * 408 * @return True, if the device is in touch mode, false otherwise. 409 * 410 * @hide 411 */ 412 static boolean isInTouchMode() { 413 if (mInitialized) { 414 try { 415 return sWindowSession.getInTouchMode(); 416 } catch (RemoteException e) { 417 } 418 } 419 return false; 420 } 421 422 /** 423 * We have one child 424 */ 425 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 426 synchronized (this) { 427 if (mView == null) { 428 mView = view; 429 mFallbackEventHandler.setView(view); 430 mWindowAttributes.copyFrom(attrs); 431 attrs = mWindowAttributes; 432 433 if (view instanceof RootViewSurfaceTaker) { 434 mSurfaceHolderCallback = 435 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 436 if (mSurfaceHolderCallback != null) { 437 mSurfaceHolder = new TakenSurfaceHolder(); 438 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 439 } 440 } 441 442 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 443 mTranslator = compatibilityInfo.getTranslator(); 444 445 // If the application owns the surface, don't enable hardware acceleration 446 if (mSurfaceHolder == null) { 447 enableHardwareAcceleration(attrs); 448 } 449 450 boolean restore = false; 451 if (mTranslator != null) { 452 mSurface.setCompatibilityTranslator(mTranslator); 453 restore = true; 454 attrs.backup(); 455 mTranslator.translateWindowLayout(attrs); 456 } 457 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 458 459 if (!compatibilityInfo.supportsScreen()) { 460 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 461 mLastInCompatMode = true; 462 } 463 464 mSoftInputMode = attrs.softInputMode; 465 mWindowAttributesChanged = true; 466 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 467 mAttachInfo.mRootView = view; 468 mAttachInfo.mScalingRequired = mTranslator != null; 469 mAttachInfo.mApplicationScale = 470 mTranslator == null ? 1.0f : mTranslator.applicationScale; 471 if (panelParentView != null) { 472 mAttachInfo.mPanelParentWindowToken 473 = panelParentView.getApplicationWindowToken(); 474 } 475 mAdded = true; 476 int res; /* = WindowManagerImpl.ADD_OKAY; */ 477 478 // Schedule the first layout -before- adding to the window 479 // manager, to make sure we do the relayout before receiving 480 // any other events from the system. 481 requestLayout(); 482 if ((mWindowAttributes.inputFeatures 483 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 484 mInputChannel = new InputChannel(); 485 } 486 try { 487 mOrigWindowType = mWindowAttributes.type; 488 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 489 getHostVisibility(), mAttachInfo.mContentInsets, 490 mInputChannel); 491 } catch (RemoteException e) { 492 mAdded = false; 493 mView = null; 494 mAttachInfo.mRootView = null; 495 mInputChannel = null; 496 mFallbackEventHandler.setView(null); 497 unscheduleTraversals(); 498 throw new RuntimeException("Adding window failed", e); 499 } finally { 500 if (restore) { 501 attrs.restore(); 502 } 503 } 504 505 if (mTranslator != null) { 506 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 507 } 508 mPendingContentInsets.set(mAttachInfo.mContentInsets); 509 mPendingVisibleInsets.set(0, 0, 0, 0); 510 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 511 if (res < WindowManagerImpl.ADD_OKAY) { 512 mView = null; 513 mAttachInfo.mRootView = null; 514 mAdded = false; 515 mFallbackEventHandler.setView(null); 516 unscheduleTraversals(); 517 switch (res) { 518 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 519 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 520 throw new WindowManagerImpl.BadTokenException( 521 "Unable to add window -- token " + attrs.token 522 + " is not valid; is your activity running?"); 523 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 524 throw new WindowManagerImpl.BadTokenException( 525 "Unable to add window -- token " + attrs.token 526 + " is not for an application"); 527 case WindowManagerImpl.ADD_APP_EXITING: 528 throw new WindowManagerImpl.BadTokenException( 529 "Unable to add window -- app for token " + attrs.token 530 + " is exiting"); 531 case WindowManagerImpl.ADD_DUPLICATE_ADD: 532 throw new WindowManagerImpl.BadTokenException( 533 "Unable to add window -- window " + mWindow 534 + " has already been added"); 535 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 536 // Silently ignore -- we would have just removed it 537 // right away, anyway. 538 return; 539 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 540 throw new WindowManagerImpl.BadTokenException( 541 "Unable to add window " + mWindow + 542 " -- another window of this type already exists"); 543 case WindowManagerImpl.ADD_PERMISSION_DENIED: 544 throw new WindowManagerImpl.BadTokenException( 545 "Unable to add window " + mWindow + 546 " -- permission denied for this window type"); 547 } 548 throw new RuntimeException( 549 "Unable to add window -- unknown error code " + res); 550 } 551 552 if (view instanceof RootViewSurfaceTaker) { 553 mInputQueueCallback = 554 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 555 } 556 if (mInputChannel != null) { 557 if (mInputQueueCallback != null) { 558 mInputQueue = new InputQueue(mInputChannel); 559 mInputQueueCallback.onInputQueueCreated(mInputQueue); 560 } else { 561 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 562 Looper.myLooper()); 563 } 564 } 565 566 view.assignParent(this); 567 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 568 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 569 570 if (mAccessibilityManager.isEnabled()) { 571 mAccessibilityInteractionConnectionManager.ensureConnection(); 572 } 573 } 574 } 575 } 576 577 void destroyHardwareResources() { 578 if (mAttachInfo.mHardwareRenderer != null) { 579 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 580 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 581 } 582 mAttachInfo.mHardwareRenderer.destroy(false); 583 } 584 } 585 586 void terminateHardwareResources() { 587 if (mAttachInfo.mHardwareRenderer != null) { 588 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 589 mAttachInfo.mHardwareRenderer.destroy(false); 590 } 591 } 592 593 void destroyHardwareLayers() { 594 if (mThread != Thread.currentThread()) { 595 if (mAttachInfo.mHardwareRenderer != null && 596 mAttachInfo.mHardwareRenderer.isEnabled()) { 597 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 598 } 599 } else { 600 if (mAttachInfo.mHardwareRenderer != null && 601 mAttachInfo.mHardwareRenderer.isEnabled()) { 602 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 603 } 604 } 605 } 606 607 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 608 mAttachInfo.mHardwareAccelerated = false; 609 mAttachInfo.mHardwareAccelerationRequested = false; 610 611 // Don't enable hardware acceleration when the application is in compatibility mode 612 if (mTranslator != null) return; 613 614 // Try to enable hardware acceleration if requested 615 final boolean hardwareAccelerated = 616 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 617 618 if (hardwareAccelerated) { 619 if (!HardwareRenderer.isAvailable()) { 620 return; 621 } 622 623 // Persistent processes (including the system) should not do 624 // accelerated rendering on low-end devices. In that case, 625 // sRendererDisabled will be set. In addition, the system process 626 // itself should never do accelerated rendering. In that case, both 627 // sRendererDisabled and sSystemRendererDisabled are set. When 628 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 629 // can be used by code on the system process to escape that and enable 630 // HW accelerated drawing. (This is basically for the lock screen.) 631 632 final boolean fakeHwAccelerated = (attrs.privateFlags & 633 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 634 final boolean forceHwAccelerated = (attrs.privateFlags & 635 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 636 637 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 638 && forceHwAccelerated)) { 639 // Don't enable hardware acceleration when we're not on the main thread 640 if (!HardwareRenderer.sSystemRendererDisabled 641 && Looper.getMainLooper() != Looper.myLooper()) { 642 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 643 + "acceleration outside of the main thread, aborting"); 644 return; 645 } 646 647 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 648 if (mAttachInfo.mHardwareRenderer != null) { 649 mAttachInfo.mHardwareRenderer.destroy(true); 650 } 651 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 652 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 653 = mAttachInfo.mHardwareRenderer != null; 654 } else if (fakeHwAccelerated) { 655 // The window had wanted to use hardware acceleration, but this 656 // is not allowed in its process. By setting this flag, it can 657 // still render as if it was accelerated. This is basically for 658 // the preview windows the window manager shows for launching 659 // applications, so they will look more like the app being launched. 660 mAttachInfo.mHardwareAccelerationRequested = true; 661 } 662 } 663 } 664 665 public View getView() { 666 return mView; 667 } 668 669 final WindowLeaked getLocation() { 670 return mLocation; 671 } 672 673 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 674 synchronized (this) { 675 int oldSoftInputMode = mWindowAttributes.softInputMode; 676 // preserve compatible window flag if exists. 677 int compatibleWindowFlag = 678 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 679 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 680 mWindowAttributes.flags |= compatibleWindowFlag; 681 682 if (newView) { 683 mSoftInputMode = attrs.softInputMode; 684 requestLayout(); 685 } 686 // Don't lose the mode we last auto-computed. 687 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 688 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 689 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 690 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 691 | (oldSoftInputMode 692 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 693 } 694 mWindowAttributesChanged = true; 695 scheduleTraversals(); 696 } 697 } 698 699 void handleAppVisibility(boolean visible) { 700 if (mAppVisible != visible) { 701 mAppVisible = visible; 702 scheduleTraversals(); 703 } 704 } 705 706 void handleGetNewSurface() { 707 mNewSurfaceNeeded = true; 708 mFullRedrawNeeded = true; 709 scheduleTraversals(); 710 } 711 712 /** 713 * {@inheritDoc} 714 */ 715 public void requestLayout() { 716 checkThread(); 717 mLayoutRequested = true; 718 scheduleTraversals(); 719 } 720 721 /** 722 * {@inheritDoc} 723 */ 724 public boolean isLayoutRequested() { 725 return mLayoutRequested; 726 } 727 728 public void invalidateChild(View child, Rect dirty) { 729 checkThread(); 730 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 731 if (dirty == null) { 732 // Fast invalidation for GL-enabled applications; GL must redraw everything 733 invalidate(); 734 return; 735 } 736 if (mCurScrollY != 0 || mTranslator != null) { 737 mTempRect.set(dirty); 738 dirty = mTempRect; 739 if (mCurScrollY != 0) { 740 dirty.offset(0, -mCurScrollY); 741 } 742 if (mTranslator != null) { 743 mTranslator.translateRectInAppWindowToScreen(dirty); 744 } 745 if (mAttachInfo.mScalingRequired) { 746 dirty.inset(-1, -1); 747 } 748 } 749 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 750 mAttachInfo.mSetIgnoreDirtyState = true; 751 mAttachInfo.mIgnoreDirtyState = true; 752 } 753 mDirty.union(dirty); 754 if (!mWillDrawSoon) { 755 scheduleTraversals(); 756 } 757 } 758 759 void invalidate() { 760 mDirty.set(0, 0, mWidth, mHeight); 761 scheduleTraversals(); 762 } 763 764 void setStopped(boolean stopped) { 765 if (mStopped != stopped) { 766 mStopped = stopped; 767 if (!stopped) { 768 scheduleTraversals(); 769 } 770 } 771 } 772 773 public ViewParent getParent() { 774 return null; 775 } 776 777 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 778 invalidateChild(null, dirty); 779 return null; 780 } 781 782 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 783 if (child != mView) { 784 throw new RuntimeException("child is not mine, honest!"); 785 } 786 // Note: don't apply scroll offset, because we want to know its 787 // visibility in the virtual canvas being given to the view hierarchy. 788 return r.intersect(0, 0, mWidth, mHeight); 789 } 790 791 public void bringChildToFront(View child) { 792 } 793 794 public void scheduleTraversals() { 795 if (!mTraversalScheduled) { 796 mTraversalScheduled = true; 797 798 //noinspection ConstantConditions 799 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 800 final long now = System.nanoTime(); 801 Log.d(TAG, "Latency: Scheduled traversal, it has been " 802 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 803 + "ms since the last traversal finished."); 804 } 805 806 sendEmptyMessage(DO_TRAVERSAL); 807 } 808 } 809 810 public void unscheduleTraversals() { 811 if (mTraversalScheduled) { 812 mTraversalScheduled = false; 813 removeMessages(DO_TRAVERSAL); 814 } 815 } 816 817 int getHostVisibility() { 818 return mAppVisible ? mView.getVisibility() : View.GONE; 819 } 820 821 void disposeResizeBuffer() { 822 if (mResizeBuffer != null) { 823 mResizeBuffer.destroy(); 824 mResizeBuffer = null; 825 } 826 } 827 828 /** 829 * Add LayoutTransition to the list of transitions to be started in the next traversal. 830 * This list will be cleared after the transitions on the list are start()'ed. These 831 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 832 * happens during the layout phase of traversal, which we want to complete before any of the 833 * animations are started (because those animations may side-effect properties that layout 834 * depends upon, like the bounding rectangles of the affected views). So we add the transition 835 * to the list and it is started just prior to starting the drawing phase of traversal. 836 * 837 * @param transition The LayoutTransition to be started on the next traversal. 838 * 839 * @hide 840 */ 841 public void requestTransitionStart(LayoutTransition transition) { 842 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 843 if (mPendingTransitions == null) { 844 mPendingTransitions = new ArrayList<LayoutTransition>(); 845 } 846 mPendingTransitions.add(transition); 847 } 848 } 849 850 private void performTraversals() { 851 // cache mView since it is used so much below... 852 final View host = mView; 853 854 processInputEvents(); 855 856 if (DBG) { 857 System.out.println("======================================"); 858 System.out.println("performTraversals"); 859 host.debug(); 860 } 861 862 if (host == null || !mAdded) 863 return; 864 865 mTraversalScheduled = false; 866 mWillDrawSoon = true; 867 boolean windowSizeMayChange = false; 868 boolean fullRedrawNeeded = mFullRedrawNeeded; 869 boolean newSurface = false; 870 boolean surfaceChanged = false; 871 WindowManager.LayoutParams lp = mWindowAttributes; 872 873 int desiredWindowWidth; 874 int desiredWindowHeight; 875 int childWidthMeasureSpec; 876 int childHeightMeasureSpec; 877 878 final View.AttachInfo attachInfo = mAttachInfo; 879 880 final int viewVisibility = getHostVisibility(); 881 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 882 || mNewSurfaceNeeded; 883 884 WindowManager.LayoutParams params = null; 885 if (mWindowAttributesChanged) { 886 mWindowAttributesChanged = false; 887 surfaceChanged = true; 888 params = lp; 889 } 890 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 891 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 892 params = lp; 893 fullRedrawNeeded = true; 894 mLayoutRequested = true; 895 if (mLastInCompatMode) { 896 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 897 mLastInCompatMode = false; 898 } else { 899 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 900 mLastInCompatMode = true; 901 } 902 } 903 904 mWindowAttributesChangesFlag = 0; 905 906 Rect frame = mWinFrame; 907 if (mFirst) { 908 fullRedrawNeeded = true; 909 mLayoutRequested = true; 910 911 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 912 // NOTE -- system code, won't try to do compat mode. 913 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 914 Point size = new Point(); 915 disp.getRealSize(size); 916 desiredWindowWidth = size.x; 917 desiredWindowHeight = size.y; 918 } else { 919 DisplayMetrics packageMetrics = 920 mView.getContext().getResources().getDisplayMetrics(); 921 desiredWindowWidth = packageMetrics.widthPixels; 922 desiredWindowHeight = packageMetrics.heightPixels; 923 } 924 925 // For the very first time, tell the view hierarchy that it 926 // is attached to the window. Note that at this point the surface 927 // object is not initialized to its backing store, but soon it 928 // will be (assuming the window is visible). 929 attachInfo.mSurface = mSurface; 930 // We used to use the following condition to choose 32 bits drawing caches: 931 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 932 // However, windows are now always 32 bits by default, so choose 32 bits 933 attachInfo.mUse32BitDrawingCache = true; 934 attachInfo.mHasWindowFocus = false; 935 attachInfo.mWindowVisibility = viewVisibility; 936 attachInfo.mRecomputeGlobalAttributes = false; 937 attachInfo.mKeepScreenOn = false; 938 attachInfo.mSystemUiVisibility = 0; 939 viewVisibilityChanged = false; 940 mLastConfiguration.setTo(host.getResources().getConfiguration()); 941 host.dispatchAttachedToWindow(attachInfo, 0); 942 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 943 944 host.fitSystemWindows(mAttachInfo.mContentInsets); 945 946 } else { 947 desiredWindowWidth = frame.width(); 948 desiredWindowHeight = frame.height(); 949 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 950 if (DEBUG_ORIENTATION) Log.v(TAG, 951 "View " + host + " resized to: " + frame); 952 fullRedrawNeeded = true; 953 mLayoutRequested = true; 954 windowSizeMayChange = true; 955 } 956 } 957 958 if (viewVisibilityChanged) { 959 attachInfo.mWindowVisibility = viewVisibility; 960 host.dispatchWindowVisibilityChanged(viewVisibility); 961 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 962 destroyHardwareResources(); 963 } 964 if (viewVisibility == View.GONE) { 965 // After making a window gone, we will count it as being 966 // shown for the first time the next time it gets focus. 967 mHasHadWindowFocus = false; 968 } 969 } 970 971 boolean insetsChanged = false; 972 973 if (mLayoutRequested && !mStopped) { 974 // Execute enqueued actions on every layout in case a view that was detached 975 // enqueued an action after being detached 976 getRunQueue().executeActions(attachInfo.mHandler); 977 978 final Resources res = mView.getContext().getResources(); 979 980 if (mFirst) { 981 // make sure touch mode code executes by setting cached value 982 // to opposite of the added touch mode. 983 mAttachInfo.mInTouchMode = !mAddedTouchMode; 984 ensureTouchModeLocally(mAddedTouchMode); 985 } else { 986 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 987 insetsChanged = true; 988 } 989 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 990 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 991 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 992 + mAttachInfo.mVisibleInsets); 993 } 994 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 995 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 996 windowSizeMayChange = true; 997 998 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 999 // NOTE -- system code, won't try to do compat mode. 1000 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1001 Point size = new Point(); 1002 disp.getRealSize(size); 1003 desiredWindowWidth = size.x; 1004 desiredWindowHeight = size.y; 1005 } else { 1006 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1007 desiredWindowWidth = packageMetrics.widthPixels; 1008 desiredWindowHeight = packageMetrics.heightPixels; 1009 } 1010 } 1011 } 1012 1013 // Ask host how big it wants to be 1014 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1015 "Measuring " + host + " in display " + desiredWindowWidth 1016 + "x" + desiredWindowHeight + "..."); 1017 1018 boolean goodMeasure = false; 1019 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1020 // On large screens, we don't want to allow dialogs to just 1021 // stretch to fill the entire width of the screen to display 1022 // one line of text. First try doing the layout at a smaller 1023 // size to see if it will fit. 1024 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1025 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1026 int baseSize = 0; 1027 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1028 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1029 } 1030 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1031 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1032 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1033 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1034 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1035 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1036 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1037 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1038 goodMeasure = true; 1039 } else { 1040 // Didn't fit in that size... try expanding a bit. 1041 baseSize = (baseSize+desiredWindowWidth)/2; 1042 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1043 + baseSize); 1044 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1045 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1046 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1047 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1048 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1049 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1050 goodMeasure = true; 1051 } 1052 } 1053 } 1054 } 1055 1056 if (!goodMeasure) { 1057 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1058 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1059 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1060 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1061 windowSizeMayChange = true; 1062 } 1063 } 1064 1065 if (DBG) { 1066 System.out.println("======================================"); 1067 System.out.println("performTraversals -- after measure"); 1068 host.debug(); 1069 } 1070 } 1071 1072 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1073 //Log.i(TAG, "Computing view hierarchy attributes!"); 1074 attachInfo.mRecomputeGlobalAttributes = false; 1075 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1076 int oldVis = attachInfo.mSystemUiVisibility; 1077 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1078 attachInfo.mKeepScreenOn = false; 1079 attachInfo.mSystemUiVisibility = 0; 1080 attachInfo.mHasSystemUiListeners = false; 1081 host.dispatchCollectViewAttributes(0); 1082 if (attachInfo.mKeepScreenOn != oldScreenOn 1083 || attachInfo.mSystemUiVisibility != oldVis 1084 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1085 params = lp; 1086 } 1087 } 1088 if (attachInfo.mForceReportNewAttributes) { 1089 attachInfo.mForceReportNewAttributes = false; 1090 params = lp; 1091 } 1092 1093 if (mFirst || attachInfo.mViewVisibilityChanged) { 1094 attachInfo.mViewVisibilityChanged = false; 1095 int resizeMode = mSoftInputMode & 1096 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1097 // If we are in auto resize mode, then we need to determine 1098 // what mode to use now. 1099 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1100 final int N = attachInfo.mScrollContainers.size(); 1101 for (int i=0; i<N; i++) { 1102 if (attachInfo.mScrollContainers.get(i).isShown()) { 1103 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1104 } 1105 } 1106 if (resizeMode == 0) { 1107 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1108 } 1109 if ((lp.softInputMode & 1110 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1111 lp.softInputMode = (lp.softInputMode & 1112 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1113 resizeMode; 1114 params = lp; 1115 } 1116 } 1117 } 1118 1119 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1120 if (!PixelFormat.formatHasAlpha(params.format)) { 1121 params.format = PixelFormat.TRANSLUCENT; 1122 } 1123 } 1124 1125 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1126 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1127 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1128 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1129 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1130 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1131 1132 final boolean computesInternalInsets = 1133 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1134 1135 boolean insetsPending = false; 1136 int relayoutResult = 0; 1137 1138 if (mFirst || windowShouldResize || insetsChanged || 1139 viewVisibilityChanged || params != null) { 1140 1141 if (viewVisibility == View.VISIBLE) { 1142 // If this window is giving internal insets to the window 1143 // manager, and it is being added or changing its visibility, 1144 // then we want to first give the window manager "fake" 1145 // insets to cause it to effectively ignore the content of 1146 // the window during layout. This avoids it briefly causing 1147 // other windows to resize/move based on the raw frame of the 1148 // window, waiting until we can finish laying out this window 1149 // and get back to the window manager with the ultimately 1150 // computed insets. 1151 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1152 } 1153 1154 if (mSurfaceHolder != null) { 1155 mSurfaceHolder.mSurfaceLock.lock(); 1156 mDrawingAllowed = true; 1157 } 1158 1159 boolean hwInitialized = false; 1160 boolean contentInsetsChanged = false; 1161 boolean visibleInsetsChanged; 1162 boolean hadSurface = mSurface.isValid(); 1163 1164 try { 1165 int fl = 0; 1166 if (params != null) { 1167 fl = params.flags; 1168 if (attachInfo.mKeepScreenOn) { 1169 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1170 } 1171 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1172 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1173 } 1174 if (DEBUG_LAYOUT) { 1175 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1176 host.getMeasuredHeight() + ", params=" + params); 1177 } 1178 1179 final int surfaceGenerationId = mSurface.getGenerationId(); 1180 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1181 1182 if (params != null) { 1183 params.flags = fl; 1184 } 1185 1186 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1187 + " content=" + mPendingContentInsets.toShortString() 1188 + " visible=" + mPendingVisibleInsets.toShortString() 1189 + " surface=" + mSurface); 1190 1191 if (mPendingConfiguration.seq != 0) { 1192 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1193 + mPendingConfiguration); 1194 updateConfiguration(mPendingConfiguration, !mFirst); 1195 mPendingConfiguration.seq = 0; 1196 } 1197 1198 contentInsetsChanged = !mPendingContentInsets.equals( 1199 mAttachInfo.mContentInsets); 1200 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1201 mAttachInfo.mVisibleInsets); 1202 if (contentInsetsChanged) { 1203 if (mWidth > 0 && mHeight > 0 && 1204 mSurface != null && mSurface.isValid() && 1205 !mAttachInfo.mTurnOffWindowResizeAnim && 1206 mAttachInfo.mHardwareRenderer != null && 1207 mAttachInfo.mHardwareRenderer.isEnabled() && 1208 mAttachInfo.mHardwareRenderer.validate() && 1209 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1210 1211 disposeResizeBuffer(); 1212 1213 boolean completed = false; 1214 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1215 HardwareCanvas layerCanvas = null; 1216 try { 1217 if (mResizeBuffer == null) { 1218 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1219 mWidth, mHeight, false); 1220 } else if (mResizeBuffer.getWidth() != mWidth || 1221 mResizeBuffer.getHeight() != mHeight) { 1222 mResizeBuffer.resize(mWidth, mHeight); 1223 } 1224 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1225 layerCanvas.setViewport(mWidth, mHeight); 1226 layerCanvas.onPreDraw(null); 1227 final int restoreCount = layerCanvas.save(); 1228 1229 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1230 1231 int yoff; 1232 final boolean scrolling = mScroller != null 1233 && mScroller.computeScrollOffset(); 1234 if (scrolling) { 1235 yoff = mScroller.getCurrY(); 1236 mScroller.abortAnimation(); 1237 } else { 1238 yoff = mScrollY; 1239 } 1240 1241 layerCanvas.translate(0, -yoff); 1242 if (mTranslator != null) { 1243 mTranslator.translateCanvas(layerCanvas); 1244 } 1245 1246 mView.draw(layerCanvas); 1247 1248 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1249 mResizeBufferDuration = mView.getResources().getInteger( 1250 com.android.internal.R.integer.config_mediumAnimTime); 1251 completed = true; 1252 1253 layerCanvas.restoreToCount(restoreCount); 1254 } catch (OutOfMemoryError e) { 1255 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1256 } finally { 1257 if (layerCanvas != null) { 1258 layerCanvas.onPostDraw(); 1259 } 1260 if (mResizeBuffer != null) { 1261 mResizeBuffer.end(hwRendererCanvas); 1262 if (!completed) { 1263 mResizeBuffer.destroy(); 1264 mResizeBuffer = null; 1265 } 1266 } 1267 } 1268 } 1269 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1270 host.fitSystemWindows(mAttachInfo.mContentInsets); 1271 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1272 + mAttachInfo.mContentInsets); 1273 } 1274 if (visibleInsetsChanged) { 1275 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1276 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1277 + mAttachInfo.mVisibleInsets); 1278 } 1279 1280 if (!hadSurface) { 1281 if (mSurface.isValid()) { 1282 // If we are creating a new surface, then we need to 1283 // completely redraw it. Also, when we get to the 1284 // point of drawing it we will hold off and schedule 1285 // a new traversal instead. This is so we can tell the 1286 // window manager about all of the windows being displayed 1287 // before actually drawing them, so it can display then 1288 // all at once. 1289 newSurface = true; 1290 fullRedrawNeeded = true; 1291 mPreviousTransparentRegion.setEmpty(); 1292 1293 if (mAttachInfo.mHardwareRenderer != null) { 1294 try { 1295 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1296 } catch (Surface.OutOfResourcesException e) { 1297 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1298 try { 1299 if (!sWindowSession.outOfMemory(mWindow)) { 1300 Slog.w(TAG, "No processes killed for memory; killing self"); 1301 Process.killProcess(Process.myPid()); 1302 } 1303 } catch (RemoteException ex) { 1304 } 1305 mLayoutRequested = true; // ask wm for a new surface next time. 1306 return; 1307 } 1308 } 1309 } 1310 } else if (!mSurface.isValid()) { 1311 // If the surface has been removed, then reset the scroll 1312 // positions. 1313 mLastScrolledFocus = null; 1314 mScrollY = mCurScrollY = 0; 1315 if (mScroller != null) { 1316 mScroller.abortAnimation(); 1317 } 1318 disposeResizeBuffer(); 1319 // Our surface is gone 1320 if (mAttachInfo.mHardwareRenderer != null && 1321 mAttachInfo.mHardwareRenderer.isEnabled()) { 1322 mAttachInfo.mHardwareRenderer.destroy(true); 1323 } 1324 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1325 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1326 fullRedrawNeeded = true; 1327 try { 1328 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1329 } catch (Surface.OutOfResourcesException e) { 1330 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1331 try { 1332 if (!sWindowSession.outOfMemory(mWindow)) { 1333 Slog.w(TAG, "No processes killed for memory; killing self"); 1334 Process.killProcess(Process.myPid()); 1335 } 1336 } catch (RemoteException ex) { 1337 } 1338 mLayoutRequested = true; // ask wm for a new surface next time. 1339 return; 1340 } 1341 } 1342 } catch (RemoteException e) { 1343 } 1344 1345 if (DEBUG_ORIENTATION) Log.v( 1346 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1347 1348 attachInfo.mWindowLeft = frame.left; 1349 attachInfo.mWindowTop = frame.top; 1350 1351 // !!FIXME!! This next section handles the case where we did not get the 1352 // window size we asked for. We should avoid this by getting a maximum size from 1353 // the window session beforehand. 1354 mWidth = frame.width(); 1355 mHeight = frame.height(); 1356 1357 if (mSurfaceHolder != null) { 1358 // The app owns the surface; tell it about what is going on. 1359 if (mSurface.isValid()) { 1360 // XXX .copyFrom() doesn't work! 1361 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1362 mSurfaceHolder.mSurface = mSurface; 1363 } 1364 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1365 mSurfaceHolder.mSurfaceLock.unlock(); 1366 if (mSurface.isValid()) { 1367 if (!hadSurface) { 1368 mSurfaceHolder.ungetCallbacks(); 1369 1370 mIsCreating = true; 1371 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1372 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1373 if (callbacks != null) { 1374 for (SurfaceHolder.Callback c : callbacks) { 1375 c.surfaceCreated(mSurfaceHolder); 1376 } 1377 } 1378 surfaceChanged = true; 1379 } 1380 if (surfaceChanged) { 1381 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1382 lp.format, mWidth, mHeight); 1383 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1384 if (callbacks != null) { 1385 for (SurfaceHolder.Callback c : callbacks) { 1386 c.surfaceChanged(mSurfaceHolder, lp.format, 1387 mWidth, mHeight); 1388 } 1389 } 1390 } 1391 mIsCreating = false; 1392 } else if (hadSurface) { 1393 mSurfaceHolder.ungetCallbacks(); 1394 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1395 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1396 if (callbacks != null) { 1397 for (SurfaceHolder.Callback c : callbacks) { 1398 c.surfaceDestroyed(mSurfaceHolder); 1399 } 1400 } 1401 mSurfaceHolder.mSurfaceLock.lock(); 1402 try { 1403 mSurfaceHolder.mSurface = new Surface(); 1404 } finally { 1405 mSurfaceHolder.mSurfaceLock.unlock(); 1406 } 1407 } 1408 } 1409 1410 if (mAttachInfo.mHardwareRenderer != null && 1411 mAttachInfo.mHardwareRenderer.isEnabled()) { 1412 if (hwInitialized || windowShouldResize || 1413 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1414 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1415 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1416 if (!hwInitialized) { 1417 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1418 } 1419 } 1420 } 1421 1422 if (!mStopped) { 1423 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1424 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1425 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1426 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1427 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1428 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1429 1430 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1431 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1432 + " mHeight=" + mHeight 1433 + " measuredHeight=" + host.getMeasuredHeight() 1434 + " coveredInsetsChanged=" + contentInsetsChanged); 1435 1436 // Ask host how big it wants to be 1437 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1438 1439 // Implementation of weights from WindowManager.LayoutParams 1440 // We just grow the dimensions as needed and re-measure if 1441 // needs be 1442 int width = host.getMeasuredWidth(); 1443 int height = host.getMeasuredHeight(); 1444 boolean measureAgain = false; 1445 1446 if (lp.horizontalWeight > 0.0f) { 1447 width += (int) ((mWidth - width) * lp.horizontalWeight); 1448 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1449 MeasureSpec.EXACTLY); 1450 measureAgain = true; 1451 } 1452 if (lp.verticalWeight > 0.0f) { 1453 height += (int) ((mHeight - height) * lp.verticalWeight); 1454 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1455 MeasureSpec.EXACTLY); 1456 measureAgain = true; 1457 } 1458 1459 if (measureAgain) { 1460 if (DEBUG_LAYOUT) Log.v(TAG, 1461 "And hey let's measure once more: width=" + width 1462 + " height=" + height); 1463 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1464 } 1465 1466 mLayoutRequested = true; 1467 } 1468 } 1469 } 1470 1471 final boolean didLayout = mLayoutRequested && !mStopped; 1472 boolean triggerGlobalLayoutListener = didLayout 1473 || attachInfo.mRecomputeGlobalAttributes; 1474 if (didLayout) { 1475 mLayoutRequested = false; 1476 mScrollMayChange = true; 1477 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1478 TAG, "Laying out " + host + " to (" + 1479 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1480 long startTime = 0L; 1481 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1482 startTime = SystemClock.elapsedRealtime(); 1483 } 1484 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1485 1486 if (false && ViewDebug.consistencyCheckEnabled) { 1487 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1488 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1489 + "please refer to the logs with the tag " 1490 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1491 } 1492 } 1493 1494 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1495 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1496 } 1497 1498 // By this point all views have been sized and positionned 1499 // We can compute the transparent area 1500 1501 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1502 // start out transparent 1503 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1504 host.getLocationInWindow(mTmpLocation); 1505 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1506 mTmpLocation[0] + host.mRight - host.mLeft, 1507 mTmpLocation[1] + host.mBottom - host.mTop); 1508 1509 host.gatherTransparentRegion(mTransparentRegion); 1510 if (mTranslator != null) { 1511 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1512 } 1513 1514 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1515 mPreviousTransparentRegion.set(mTransparentRegion); 1516 // reconfigure window manager 1517 try { 1518 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1519 } catch (RemoteException e) { 1520 } 1521 } 1522 } 1523 1524 if (DBG) { 1525 System.out.println("======================================"); 1526 System.out.println("performTraversals -- after setFrame"); 1527 host.debug(); 1528 } 1529 } 1530 1531 if (triggerGlobalLayoutListener) { 1532 attachInfo.mRecomputeGlobalAttributes = false; 1533 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1534 1535 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1536 postSendWindowContentChangedCallback(); 1537 } 1538 } 1539 1540 if (computesInternalInsets) { 1541 // Clear the original insets. 1542 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1543 insets.reset(); 1544 1545 // Compute new insets in place. 1546 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1547 1548 // Tell the window manager. 1549 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1550 mLastGivenInsets.set(insets); 1551 1552 // Translate insets to screen coordinates if needed. 1553 final Rect contentInsets; 1554 final Rect visibleInsets; 1555 final Region touchableRegion; 1556 if (mTranslator != null) { 1557 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1558 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1559 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1560 } else { 1561 contentInsets = insets.contentInsets; 1562 visibleInsets = insets.visibleInsets; 1563 touchableRegion = insets.touchableRegion; 1564 } 1565 1566 try { 1567 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1568 contentInsets, visibleInsets, touchableRegion); 1569 } catch (RemoteException e) { 1570 } 1571 } 1572 } 1573 1574 if (mFirst) { 1575 // handle first focus request 1576 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1577 + mView.hasFocus()); 1578 if (mView != null) { 1579 if (!mView.hasFocus()) { 1580 mView.requestFocus(View.FOCUS_FORWARD); 1581 mFocusedView = mRealFocusedView = mView.findFocus(); 1582 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1583 + mFocusedView); 1584 } else { 1585 mRealFocusedView = mView.findFocus(); 1586 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1587 + mRealFocusedView); 1588 } 1589 } 1590 } 1591 1592 mFirst = false; 1593 mWillDrawSoon = false; 1594 mNewSurfaceNeeded = false; 1595 mViewVisibility = viewVisibility; 1596 1597 if (mAttachInfo.mHasWindowFocus) { 1598 final boolean imTarget = WindowManager.LayoutParams 1599 .mayUseInputMethod(mWindowAttributes.flags); 1600 if (imTarget != mLastWasImTarget) { 1601 mLastWasImTarget = imTarget; 1602 InputMethodManager imm = InputMethodManager.peekInstance(); 1603 if (imm != null && imTarget) { 1604 imm.startGettingWindowFocus(mView); 1605 imm.onWindowFocus(mView, mView.findFocus(), 1606 mWindowAttributes.softInputMode, 1607 !mHasHadWindowFocus, mWindowAttributes.flags); 1608 } 1609 } 1610 } 1611 1612 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1613 viewVisibility != View.VISIBLE; 1614 1615 if (!cancelDraw && !newSurface) { 1616 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1617 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1618 mPendingTransitions.get(i).startChangingAnimations(); 1619 } 1620 mPendingTransitions.clear(); 1621 } 1622 mFullRedrawNeeded = false; 1623 1624 final long drawStartTime; 1625 if (ViewDebug.DEBUG_LATENCY) { 1626 drawStartTime = System.nanoTime(); 1627 } 1628 1629 draw(fullRedrawNeeded); 1630 1631 if (ViewDebug.DEBUG_LATENCY) { 1632 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1633 } 1634 1635 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0 1636 || mReportNextDraw) { 1637 if (LOCAL_LOGV) { 1638 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1639 } 1640 mReportNextDraw = false; 1641 if (mSurfaceHolder != null && mSurface.isValid()) { 1642 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1643 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1644 if (callbacks != null) { 1645 for (SurfaceHolder.Callback c : callbacks) { 1646 if (c instanceof SurfaceHolder.Callback2) { 1647 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1648 mSurfaceHolder); 1649 } 1650 } 1651 } 1652 } 1653 try { 1654 sWindowSession.finishDrawing(mWindow); 1655 } catch (RemoteException e) { 1656 } 1657 } 1658 } else { 1659 // End any pending transitions on this non-visible window 1660 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1661 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1662 mPendingTransitions.get(i).endChangingAnimations(); 1663 } 1664 mPendingTransitions.clear(); 1665 } 1666 // We were supposed to report when we are done drawing. Since we canceled the 1667 // draw, remember it here. 1668 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1669 mReportNextDraw = true; 1670 } 1671 if (fullRedrawNeeded) { 1672 mFullRedrawNeeded = true; 1673 } 1674 1675 if (viewVisibility == View.VISIBLE) { 1676 // Try again 1677 scheduleTraversals(); 1678 } 1679 } 1680 } 1681 1682 public void requestTransparentRegion(View child) { 1683 // the test below should not fail unless someone is messing with us 1684 checkThread(); 1685 if (mView == child) { 1686 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1687 // Need to make sure we re-evaluate the window attributes next 1688 // time around, to ensure the window has the correct format. 1689 mWindowAttributesChanged = true; 1690 mWindowAttributesChangesFlag = 0; 1691 requestLayout(); 1692 } 1693 } 1694 1695 /** 1696 * Figures out the measure spec for the root view in a window based on it's 1697 * layout params. 1698 * 1699 * @param windowSize 1700 * The available width or height of the window 1701 * 1702 * @param rootDimension 1703 * The layout params for one dimension (width or height) of the 1704 * window. 1705 * 1706 * @return The measure spec to use to measure the root view. 1707 */ 1708 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1709 int measureSpec; 1710 switch (rootDimension) { 1711 1712 case ViewGroup.LayoutParams.MATCH_PARENT: 1713 // Window can't resize. Force root view to be windowSize. 1714 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1715 break; 1716 case ViewGroup.LayoutParams.WRAP_CONTENT: 1717 // Window can resize. Set max size for root view. 1718 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1719 break; 1720 default: 1721 // Window wants to be an exact size. Force root view to be that size. 1722 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1723 break; 1724 } 1725 return measureSpec; 1726 } 1727 1728 int mHardwareYOffset; 1729 int mResizeAlpha; 1730 final Paint mResizePaint = new Paint(); 1731 1732 public void onHardwarePreDraw(HardwareCanvas canvas) { 1733 canvas.translate(0, -mHardwareYOffset); 1734 } 1735 1736 public void onHardwarePostDraw(HardwareCanvas canvas) { 1737 if (mResizeBuffer != null) { 1738 mResizePaint.setAlpha(mResizeAlpha); 1739 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1740 } 1741 } 1742 1743 /** 1744 * @hide 1745 */ 1746 void outputDisplayList(View view) { 1747 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1748 DisplayList displayList = view.getDisplayList(); 1749 if (displayList != null) { 1750 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1751 } 1752 } 1753 } 1754 1755 /** 1756 * @see #PROPERTY_PROFILE_RENDERING 1757 */ 1758 private void profileRendering(boolean enabled) { 1759 if (mProfileRendering) { 1760 mRenderProfilingEnabled = enabled; 1761 if (mRenderProfiler == null) { 1762 mRenderProfiler = new Thread(new Runnable() { 1763 @Override 1764 public void run() { 1765 Log.d(TAG, "Starting profiling thread"); 1766 while (mRenderProfilingEnabled) { 1767 mAttachInfo.mHandler.post(new Runnable() { 1768 @Override 1769 public void run() { 1770 mDirty.set(0, 0, mWidth, mHeight); 1771 scheduleTraversals(); 1772 } 1773 }); 1774 try { 1775 // TODO: This should use vsync when we get an API 1776 Thread.sleep(15); 1777 } catch (InterruptedException e) { 1778 Log.d(TAG, "Exiting profiling thread"); 1779 } 1780 } 1781 } 1782 }, "Rendering Profiler"); 1783 mRenderProfiler.start(); 1784 } else { 1785 mRenderProfiler.interrupt(); 1786 mRenderProfiler = null; 1787 } 1788 } 1789 } 1790 1791 /** 1792 * Called from draw() when DEBUG_FPS is enabled 1793 */ 1794 private void trackFPS() { 1795 // Tracks frames per second drawn. First value in a series of draws may be bogus 1796 // because it down not account for the intervening idle time 1797 long nowTime = System.currentTimeMillis(); 1798 if (mFpsStartTime < 0) { 1799 mFpsStartTime = mFpsPrevTime = nowTime; 1800 mFpsNumFrames = 0; 1801 } else { 1802 ++mFpsNumFrames; 1803 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1804 long frameTime = nowTime - mFpsPrevTime; 1805 long totalTime = nowTime - mFpsStartTime; 1806 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1807 mFpsPrevTime = nowTime; 1808 if (totalTime > 1000) { 1809 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1810 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1811 mFpsStartTime = nowTime; 1812 mFpsNumFrames = 0; 1813 } 1814 } 1815 } 1816 1817 private void draw(boolean fullRedrawNeeded) { 1818 Surface surface = mSurface; 1819 if (surface == null || !surface.isValid()) { 1820 return; 1821 } 1822 1823 if (DEBUG_FPS) { 1824 trackFPS(); 1825 } 1826 1827 if (!sFirstDrawComplete) { 1828 synchronized (sFirstDrawHandlers) { 1829 sFirstDrawComplete = true; 1830 final int count = sFirstDrawHandlers.size(); 1831 for (int i = 0; i< count; i++) { 1832 post(sFirstDrawHandlers.get(i)); 1833 } 1834 } 1835 } 1836 1837 scrollToRectOrFocus(null, false); 1838 1839 if (mAttachInfo.mViewScrollChanged) { 1840 mAttachInfo.mViewScrollChanged = false; 1841 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1842 } 1843 1844 int yoff; 1845 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1846 if (animating) { 1847 yoff = mScroller.getCurrY(); 1848 } else { 1849 yoff = mScrollY; 1850 } 1851 if (mCurScrollY != yoff) { 1852 mCurScrollY = yoff; 1853 fullRedrawNeeded = true; 1854 } 1855 float appScale = mAttachInfo.mApplicationScale; 1856 boolean scalingRequired = mAttachInfo.mScalingRequired; 1857 1858 int resizeAlpha = 0; 1859 if (mResizeBuffer != null) { 1860 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1861 if (deltaTime < mResizeBufferDuration) { 1862 float amt = deltaTime/(float) mResizeBufferDuration; 1863 amt = mResizeInterpolator.getInterpolation(amt); 1864 animating = true; 1865 resizeAlpha = 255 - (int)(amt*255); 1866 } else { 1867 disposeResizeBuffer(); 1868 } 1869 } 1870 1871 Rect dirty = mDirty; 1872 if (mSurfaceHolder != null) { 1873 // The app owns the surface, we won't draw. 1874 dirty.setEmpty(); 1875 if (animating) { 1876 if (mScroller != null) { 1877 mScroller.abortAnimation(); 1878 } 1879 disposeResizeBuffer(); 1880 } 1881 return; 1882 } 1883 1884 if (fullRedrawNeeded) { 1885 mAttachInfo.mIgnoreDirtyState = true; 1886 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1887 } 1888 1889 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1890 if (!dirty.isEmpty() || mIsAnimating) { 1891 mIsAnimating = false; 1892 mHardwareYOffset = yoff; 1893 mResizeAlpha = resizeAlpha; 1894 1895 mCurrentDirty.set(dirty); 1896 mCurrentDirty.union(mPreviousDirty); 1897 mPreviousDirty.set(dirty); 1898 dirty.setEmpty(); 1899 1900 Rect currentDirty = mCurrentDirty; 1901 if (animating) { 1902 currentDirty = null; 1903 } 1904 1905 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1906 mPreviousDirty.set(0, 0, mWidth, mHeight); 1907 } 1908 } 1909 1910 if (animating) { 1911 mFullRedrawNeeded = true; 1912 scheduleTraversals(); 1913 } 1914 1915 return; 1916 } 1917 1918 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1919 Log.v(TAG, "Draw " + mView + "/" 1920 + mWindowAttributes.getTitle() 1921 + ": dirty={" + dirty.left + "," + dirty.top 1922 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1923 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1924 appScale + ", width=" + mWidth + ", height=" + mHeight); 1925 } 1926 1927 if (!dirty.isEmpty() || mIsAnimating) { 1928 Canvas canvas; 1929 try { 1930 int left = dirty.left; 1931 int top = dirty.top; 1932 int right = dirty.right; 1933 int bottom = dirty.bottom; 1934 1935 final long lockCanvasStartTime; 1936 if (ViewDebug.DEBUG_LATENCY) { 1937 lockCanvasStartTime = System.nanoTime(); 1938 } 1939 1940 canvas = surface.lockCanvas(dirty); 1941 1942 if (ViewDebug.DEBUG_LATENCY) { 1943 long now = System.nanoTime(); 1944 Log.d(TAG, "Latency: Spent " 1945 + ((now - lockCanvasStartTime) * 0.000001f) 1946 + "ms waiting for surface.lockCanvas()"); 1947 } 1948 1949 if (left != dirty.left || top != dirty.top || right != dirty.right || 1950 bottom != dirty.bottom) { 1951 mAttachInfo.mIgnoreDirtyState = true; 1952 } 1953 1954 // TODO: Do this in native 1955 canvas.setDensity(mDensity); 1956 } catch (Surface.OutOfResourcesException e) { 1957 Log.e(TAG, "OutOfResourcesException locking surface", e); 1958 try { 1959 if (!sWindowSession.outOfMemory(mWindow)) { 1960 Slog.w(TAG, "No processes killed for memory; killing self"); 1961 Process.killProcess(Process.myPid()); 1962 } 1963 } catch (RemoteException ex) { 1964 } 1965 mLayoutRequested = true; // ask wm for a new surface next time. 1966 return; 1967 } catch (IllegalArgumentException e) { 1968 Log.e(TAG, "IllegalArgumentException locking surface", e); 1969 // Don't assume this is due to out of memory, it could be 1970 // something else, and if it is something else then we could 1971 // kill stuff (or ourself) for no reason. 1972 mLayoutRequested = true; // ask wm for a new surface next time. 1973 return; 1974 } 1975 1976 try { 1977 if (!dirty.isEmpty() || mIsAnimating) { 1978 long startTime = 0L; 1979 1980 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1981 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1982 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1983 //canvas.drawARGB(255, 255, 0, 0); 1984 } 1985 1986 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1987 startTime = SystemClock.elapsedRealtime(); 1988 } 1989 1990 // If this bitmap's format includes an alpha channel, we 1991 // need to clear it before drawing so that the child will 1992 // properly re-composite its drawing on a transparent 1993 // background. This automatically respects the clip/dirty region 1994 // or 1995 // If we are applying an offset, we need to clear the area 1996 // where the offset doesn't appear to avoid having garbage 1997 // left in the blank areas. 1998 if (!canvas.isOpaque() || yoff != 0) { 1999 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2000 } 2001 2002 dirty.setEmpty(); 2003 mIsAnimating = false; 2004 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2005 mView.mPrivateFlags |= View.DRAWN; 2006 2007 if (DEBUG_DRAW) { 2008 Context cxt = mView.getContext(); 2009 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2010 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2011 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2012 } 2013 try { 2014 canvas.translate(0, -yoff); 2015 if (mTranslator != null) { 2016 mTranslator.translateCanvas(canvas); 2017 } 2018 canvas.setScreenDensity(scalingRequired 2019 ? DisplayMetrics.DENSITY_DEVICE : 0); 2020 mAttachInfo.mSetIgnoreDirtyState = false; 2021 2022 final long drawStartTime; 2023 if (ViewDebug.DEBUG_LATENCY) { 2024 drawStartTime = System.nanoTime(); 2025 } 2026 2027 mView.draw(canvas); 2028 2029 if (ViewDebug.DEBUG_LATENCY) { 2030 long now = System.nanoTime(); 2031 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2032 + ((now - drawStartTime) * 0.000001f) + "ms"); 2033 } 2034 } finally { 2035 if (!mAttachInfo.mSetIgnoreDirtyState) { 2036 // Only clear the flag if it was not set during the mView.draw() call 2037 mAttachInfo.mIgnoreDirtyState = false; 2038 } 2039 } 2040 2041 if (false && ViewDebug.consistencyCheckEnabled) { 2042 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2043 } 2044 2045 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2046 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2047 } 2048 } 2049 } finally { 2050 final long unlockCanvasAndPostStartTime; 2051 if (ViewDebug.DEBUG_LATENCY) { 2052 unlockCanvasAndPostStartTime = System.nanoTime(); 2053 } 2054 2055 surface.unlockCanvasAndPost(canvas); 2056 2057 if (ViewDebug.DEBUG_LATENCY) { 2058 long now = System.nanoTime(); 2059 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2060 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2061 } 2062 2063 if (LOCAL_LOGV) { 2064 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2065 } 2066 } 2067 } 2068 2069 if (animating) { 2070 mFullRedrawNeeded = true; 2071 scheduleTraversals(); 2072 } 2073 } 2074 2075 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2076 final View.AttachInfo attachInfo = mAttachInfo; 2077 final Rect ci = attachInfo.mContentInsets; 2078 final Rect vi = attachInfo.mVisibleInsets; 2079 int scrollY = 0; 2080 boolean handled = false; 2081 2082 if (vi.left > ci.left || vi.top > ci.top 2083 || vi.right > ci.right || vi.bottom > ci.bottom) { 2084 // We'll assume that we aren't going to change the scroll 2085 // offset, since we want to avoid that unless it is actually 2086 // going to make the focus visible... otherwise we scroll 2087 // all over the place. 2088 scrollY = mScrollY; 2089 // We can be called for two different situations: during a draw, 2090 // to update the scroll position if the focus has changed (in which 2091 // case 'rectangle' is null), or in response to a 2092 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2093 // is non-null and we just want to scroll to whatever that 2094 // rectangle is). 2095 View focus = mRealFocusedView; 2096 2097 // When in touch mode, focus points to the previously focused view, 2098 // which may have been removed from the view hierarchy. The following 2099 // line checks whether the view is still in our hierarchy. 2100 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2101 mRealFocusedView = null; 2102 return false; 2103 } 2104 2105 if (focus != mLastScrolledFocus) { 2106 // If the focus has changed, then ignore any requests to scroll 2107 // to a rectangle; first we want to make sure the entire focus 2108 // view is visible. 2109 rectangle = null; 2110 } 2111 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2112 + " rectangle=" + rectangle + " ci=" + ci 2113 + " vi=" + vi); 2114 if (focus == mLastScrolledFocus && !mScrollMayChange 2115 && rectangle == null) { 2116 // Optimization: if the focus hasn't changed since last 2117 // time, and no layout has happened, then just leave things 2118 // as they are. 2119 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2120 + mScrollY + " vi=" + vi.toShortString()); 2121 } else if (focus != null) { 2122 // We need to determine if the currently focused view is 2123 // within the visible part of the window and, if not, apply 2124 // a pan so it can be seen. 2125 mLastScrolledFocus = focus; 2126 mScrollMayChange = false; 2127 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2128 // Try to find the rectangle from the focus view. 2129 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2130 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2131 + mView.getWidth() + " h=" + mView.getHeight() 2132 + " ci=" + ci.toShortString() 2133 + " vi=" + vi.toShortString()); 2134 if (rectangle == null) { 2135 focus.getFocusedRect(mTempRect); 2136 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2137 + ": focusRect=" + mTempRect.toShortString()); 2138 if (mView instanceof ViewGroup) { 2139 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2140 focus, mTempRect); 2141 } 2142 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2143 "Focus in window: focusRect=" 2144 + mTempRect.toShortString() 2145 + " visRect=" + mVisRect.toShortString()); 2146 } else { 2147 mTempRect.set(rectangle); 2148 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2149 "Request scroll to rect: " 2150 + mTempRect.toShortString() 2151 + " visRect=" + mVisRect.toShortString()); 2152 } 2153 if (mTempRect.intersect(mVisRect)) { 2154 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2155 "Focus window visible rect: " 2156 + mTempRect.toShortString()); 2157 if (mTempRect.height() > 2158 (mView.getHeight()-vi.top-vi.bottom)) { 2159 // If the focus simply is not going to fit, then 2160 // best is probably just to leave things as-is. 2161 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2162 "Too tall; leaving scrollY=" + scrollY); 2163 } else if ((mTempRect.top-scrollY) < vi.top) { 2164 scrollY -= vi.top - (mTempRect.top-scrollY); 2165 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2166 "Top covered; scrollY=" + scrollY); 2167 } else if ((mTempRect.bottom-scrollY) 2168 > (mView.getHeight()-vi.bottom)) { 2169 scrollY += (mTempRect.bottom-scrollY) 2170 - (mView.getHeight()-vi.bottom); 2171 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2172 "Bottom covered; scrollY=" + scrollY); 2173 } 2174 handled = true; 2175 } 2176 } 2177 } 2178 } 2179 2180 if (scrollY != mScrollY) { 2181 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2182 + mScrollY + " , new=" + scrollY); 2183 if (!immediate && mResizeBuffer == null) { 2184 if (mScroller == null) { 2185 mScroller = new Scroller(mView.getContext()); 2186 } 2187 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2188 } else if (mScroller != null) { 2189 mScroller.abortAnimation(); 2190 } 2191 mScrollY = scrollY; 2192 } 2193 2194 return handled; 2195 } 2196 2197 public void requestChildFocus(View child, View focused) { 2198 checkThread(); 2199 if (mFocusedView != focused) { 2200 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2201 scheduleTraversals(); 2202 } 2203 mFocusedView = mRealFocusedView = focused; 2204 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2205 + mFocusedView); 2206 } 2207 2208 public void clearChildFocus(View child) { 2209 checkThread(); 2210 2211 View oldFocus = mFocusedView; 2212 2213 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2214 mFocusedView = mRealFocusedView = null; 2215 if (mView != null && !mView.hasFocus()) { 2216 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2217 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2218 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2219 } 2220 } else if (oldFocus != null) { 2221 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2222 } 2223 } 2224 2225 2226 public void focusableViewAvailable(View v) { 2227 checkThread(); 2228 2229 if (mView != null) { 2230 if (!mView.hasFocus()) { 2231 v.requestFocus(); 2232 } else { 2233 // the one case where will transfer focus away from the current one 2234 // is if the current view is a view group that prefers to give focus 2235 // to its children first AND the view is a descendant of it. 2236 mFocusedView = mView.findFocus(); 2237 boolean descendantsHaveDibsOnFocus = 2238 (mFocusedView instanceof ViewGroup) && 2239 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2240 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2241 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2242 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2243 v.requestFocus(); 2244 } 2245 } 2246 } 2247 } 2248 2249 public void recomputeViewAttributes(View child) { 2250 checkThread(); 2251 if (mView == child) { 2252 mAttachInfo.mRecomputeGlobalAttributes = true; 2253 if (!mWillDrawSoon) { 2254 scheduleTraversals(); 2255 } 2256 } 2257 } 2258 2259 void dispatchDetachedFromWindow() { 2260 if (mView != null && mView.mAttachInfo != null) { 2261 if (mAttachInfo.mHardwareRenderer != null && 2262 mAttachInfo.mHardwareRenderer.isEnabled()) { 2263 mAttachInfo.mHardwareRenderer.validate(); 2264 } 2265 mView.dispatchDetachedFromWindow(); 2266 } 2267 2268 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2269 mAccessibilityManager.removeAccessibilityStateChangeListener( 2270 mAccessibilityInteractionConnectionManager); 2271 removeSendWindowContentChangedCallback(); 2272 2273 mView = null; 2274 mAttachInfo.mRootView = null; 2275 mAttachInfo.mSurface = null; 2276 2277 destroyHardwareRenderer(); 2278 2279 mSurface.release(); 2280 2281 if (mInputQueueCallback != null && mInputQueue != null) { 2282 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2283 mInputQueueCallback = null; 2284 mInputQueue = null; 2285 } else if (mInputEventReceiver != null) { 2286 mInputEventReceiver.dispose(); 2287 mInputEventReceiver = null; 2288 } 2289 try { 2290 sWindowSession.remove(mWindow); 2291 } catch (RemoteException e) { 2292 } 2293 2294 // Dispose the input channel after removing the window so the Window Manager 2295 // doesn't interpret the input channel being closed as an abnormal termination. 2296 if (mInputChannel != null) { 2297 mInputChannel.dispose(); 2298 mInputChannel = null; 2299 } 2300 } 2301 2302 void updateConfiguration(Configuration config, boolean force) { 2303 if (DEBUG_CONFIGURATION) Log.v(TAG, 2304 "Applying new config to window " 2305 + mWindowAttributes.getTitle() 2306 + ": " + config); 2307 2308 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2309 if (ci != null) { 2310 config = new Configuration(config); 2311 ci.applyToConfiguration(config); 2312 } 2313 2314 synchronized (sConfigCallbacks) { 2315 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2316 sConfigCallbacks.get(i).onConfigurationChanged(config); 2317 } 2318 } 2319 if (mView != null) { 2320 // At this point the resources have been updated to 2321 // have the most recent config, whatever that is. Use 2322 // the on in them which may be newer. 2323 config = mView.getResources().getConfiguration(); 2324 if (force || mLastConfiguration.diff(config) != 0) { 2325 mLastConfiguration.setTo(config); 2326 mView.dispatchConfigurationChanged(config); 2327 } 2328 } 2329 } 2330 2331 /** 2332 * Return true if child is an ancestor of parent, (or equal to the parent). 2333 */ 2334 private static boolean isViewDescendantOf(View child, View parent) { 2335 if (child == parent) { 2336 return true; 2337 } 2338 2339 final ViewParent theParent = child.getParent(); 2340 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2341 } 2342 2343 private static void forceLayout(View view) { 2344 view.forceLayout(); 2345 if (view instanceof ViewGroup) { 2346 ViewGroup group = (ViewGroup) view; 2347 final int count = group.getChildCount(); 2348 for (int i = 0; i < count; i++) { 2349 forceLayout(group.getChildAt(i)); 2350 } 2351 } 2352 } 2353 2354 public final static int DO_TRAVERSAL = 1000; 2355 public final static int DIE = 1001; 2356 public final static int RESIZED = 1002; 2357 public final static int RESIZED_REPORT = 1003; 2358 public final static int WINDOW_FOCUS_CHANGED = 1004; 2359 public final static int DISPATCH_KEY = 1005; 2360 public final static int DISPATCH_POINTER = 1006; 2361 public final static int DISPATCH_TRACKBALL = 1007; 2362 public final static int DISPATCH_APP_VISIBILITY = 1008; 2363 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2364 public final static int IME_FINISHED_EVENT = 1010; 2365 public final static int DISPATCH_KEY_FROM_IME = 1011; 2366 public final static int FINISH_INPUT_CONNECTION = 1012; 2367 public final static int CHECK_FOCUS = 1013; 2368 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2369 public final static int DISPATCH_DRAG_EVENT = 1015; 2370 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2371 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2372 public final static int DISPATCH_GENERIC_MOTION = 1018; 2373 public final static int UPDATE_CONFIGURATION = 1019; 2374 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2375 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2376 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2377 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT = 1023; 2378 public final static int DO_PROCESS_INPUT_EVENTS = 1024; 2379 2380 @Override 2381 public String getMessageName(Message message) { 2382 switch (message.what) { 2383 case DO_TRAVERSAL: 2384 return "DO_TRAVERSAL"; 2385 case DIE: 2386 return "DIE"; 2387 case RESIZED: 2388 return "RESIZED"; 2389 case RESIZED_REPORT: 2390 return "RESIZED_REPORT"; 2391 case WINDOW_FOCUS_CHANGED: 2392 return "WINDOW_FOCUS_CHANGED"; 2393 case DISPATCH_KEY: 2394 return "DISPATCH_KEY"; 2395 case DISPATCH_POINTER: 2396 return "DISPATCH_POINTER"; 2397 case DISPATCH_TRACKBALL: 2398 return "DISPATCH_TRACKBALL"; 2399 case DISPATCH_APP_VISIBILITY: 2400 return "DISPATCH_APP_VISIBILITY"; 2401 case DISPATCH_GET_NEW_SURFACE: 2402 return "DISPATCH_GET_NEW_SURFACE"; 2403 case IME_FINISHED_EVENT: 2404 return "IME_FINISHED_EVENT"; 2405 case DISPATCH_KEY_FROM_IME: 2406 return "DISPATCH_KEY_FROM_IME"; 2407 case FINISH_INPUT_CONNECTION: 2408 return "FINISH_INPUT_CONNECTION"; 2409 case CHECK_FOCUS: 2410 return "CHECK_FOCUS"; 2411 case CLOSE_SYSTEM_DIALOGS: 2412 return "CLOSE_SYSTEM_DIALOGS"; 2413 case DISPATCH_DRAG_EVENT: 2414 return "DISPATCH_DRAG_EVENT"; 2415 case DISPATCH_DRAG_LOCATION_EVENT: 2416 return "DISPATCH_DRAG_LOCATION_EVENT"; 2417 case DISPATCH_SYSTEM_UI_VISIBILITY: 2418 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2419 case DISPATCH_GENERIC_MOTION: 2420 return "DISPATCH_GENERIC_MOTION"; 2421 case UPDATE_CONFIGURATION: 2422 return "UPDATE_CONFIGURATION"; 2423 case DO_PERFORM_ACCESSIBILITY_ACTION: 2424 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2425 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2426 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2427 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2428 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2429 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: 2430 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT"; 2431 case DO_PROCESS_INPUT_EVENTS: 2432 return "DO_PROCESS_INPUT_EVENTS"; 2433 } 2434 return super.getMessageName(message); 2435 } 2436 2437 @Override 2438 public void handleMessage(Message msg) { 2439 switch (msg.what) { 2440 case View.AttachInfo.INVALIDATE_MSG: 2441 ((View) msg.obj).invalidate(); 2442 break; 2443 case View.AttachInfo.INVALIDATE_RECT_MSG: 2444 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2445 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2446 info.release(); 2447 break; 2448 case DO_TRAVERSAL: 2449 if (mProfile) { 2450 Debug.startMethodTracing("ViewAncestor"); 2451 } 2452 2453 final long traversalStartTime; 2454 if (ViewDebug.DEBUG_LATENCY) { 2455 traversalStartTime = System.nanoTime(); 2456 mLastDrawDurationNanos = 0; 2457 if (mLastTraversalFinishedTimeNanos != 0) { 2458 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 2459 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 2460 + "ms since the last traversals finished."); 2461 } else { 2462 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 2463 } 2464 } 2465 2466 performTraversals(); 2467 2468 if (ViewDebug.DEBUG_LATENCY) { 2469 long now = System.nanoTime(); 2470 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 2471 + ((now - traversalStartTime) * 0.000001f) 2472 + "ms."); 2473 mLastTraversalFinishedTimeNanos = now; 2474 } 2475 2476 if (mProfile) { 2477 Debug.stopMethodTracing(); 2478 mProfile = false; 2479 } 2480 break; 2481 case IME_FINISHED_EVENT: 2482 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2483 break; 2484 case DO_PROCESS_INPUT_EVENTS: 2485 mProcessInputEventsPending = false; 2486 processInputEvents(); 2487 break; 2488 case DISPATCH_APP_VISIBILITY: 2489 handleAppVisibility(msg.arg1 != 0); 2490 break; 2491 case DISPATCH_GET_NEW_SURFACE: 2492 handleGetNewSurface(); 2493 break; 2494 case RESIZED: 2495 ResizedInfo ri = (ResizedInfo)msg.obj; 2496 2497 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2498 && mPendingContentInsets.equals(ri.coveredInsets) 2499 && mPendingVisibleInsets.equals(ri.visibleInsets) 2500 && ((ResizedInfo)msg.obj).newConfig == null) { 2501 break; 2502 } 2503 // fall through... 2504 case RESIZED_REPORT: 2505 if (mAdded) { 2506 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2507 if (config != null) { 2508 updateConfiguration(config, false); 2509 } 2510 mWinFrame.left = 0; 2511 mWinFrame.right = msg.arg1; 2512 mWinFrame.top = 0; 2513 mWinFrame.bottom = msg.arg2; 2514 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2515 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2516 if (msg.what == RESIZED_REPORT) { 2517 mReportNextDraw = true; 2518 } 2519 2520 if (mView != null) { 2521 forceLayout(mView); 2522 } 2523 requestLayout(); 2524 } 2525 break; 2526 case WINDOW_FOCUS_CHANGED: { 2527 if (mAdded) { 2528 boolean hasWindowFocus = msg.arg1 != 0; 2529 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2530 2531 profileRendering(hasWindowFocus); 2532 2533 if (hasWindowFocus) { 2534 boolean inTouchMode = msg.arg2 != 0; 2535 ensureTouchModeLocally(inTouchMode); 2536 2537 if (mAttachInfo.mHardwareRenderer != null && 2538 mSurface != null && mSurface.isValid()) { 2539 mFullRedrawNeeded = true; 2540 try { 2541 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2542 mAttachInfo, mHolder); 2543 } catch (Surface.OutOfResourcesException e) { 2544 Log.e(TAG, "OutOfResourcesException locking surface", e); 2545 try { 2546 if (!sWindowSession.outOfMemory(mWindow)) { 2547 Slog.w(TAG, "No processes killed for memory; killing self"); 2548 Process.killProcess(Process.myPid()); 2549 } 2550 } catch (RemoteException ex) { 2551 } 2552 // Retry in a bit. 2553 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2554 return; 2555 } 2556 } 2557 } 2558 2559 mLastWasImTarget = WindowManager.LayoutParams 2560 .mayUseInputMethod(mWindowAttributes.flags); 2561 2562 InputMethodManager imm = InputMethodManager.peekInstance(); 2563 if (mView != null) { 2564 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2565 imm.startGettingWindowFocus(mView); 2566 } 2567 mAttachInfo.mKeyDispatchState.reset(); 2568 mView.dispatchWindowFocusChanged(hasWindowFocus); 2569 } 2570 2571 // Note: must be done after the focus change callbacks, 2572 // so all of the view state is set up correctly. 2573 if (hasWindowFocus) { 2574 if (imm != null && mLastWasImTarget) { 2575 imm.onWindowFocus(mView, mView.findFocus(), 2576 mWindowAttributes.softInputMode, 2577 !mHasHadWindowFocus, mWindowAttributes.flags); 2578 } 2579 // Clear the forward bit. We can just do this directly, since 2580 // the window manager doesn't care about it. 2581 mWindowAttributes.softInputMode &= 2582 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2583 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2584 .softInputMode &= 2585 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2586 mHasHadWindowFocus = true; 2587 } 2588 2589 if (hasWindowFocus && mView != null) { 2590 sendAccessibilityEvents(); 2591 } 2592 } 2593 } break; 2594 case DIE: 2595 doDie(); 2596 break; 2597 case DISPATCH_KEY_FROM_IME: { 2598 if (LOCAL_LOGV) Log.v( 2599 TAG, "Dispatching key " 2600 + msg.obj + " from IME to " + mView); 2601 KeyEvent event = (KeyEvent)msg.obj; 2602 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2603 // The IME is trying to say this event is from the 2604 // system! Bad bad bad! 2605 //noinspection UnusedAssignment 2606 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2607 } 2608 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME); 2609 } break; 2610 case FINISH_INPUT_CONNECTION: { 2611 InputMethodManager imm = InputMethodManager.peekInstance(); 2612 if (imm != null) { 2613 imm.reportFinishInputConnection((InputConnection)msg.obj); 2614 } 2615 } break; 2616 case CHECK_FOCUS: { 2617 InputMethodManager imm = InputMethodManager.peekInstance(); 2618 if (imm != null) { 2619 imm.checkFocus(); 2620 } 2621 } break; 2622 case CLOSE_SYSTEM_DIALOGS: { 2623 if (mView != null) { 2624 mView.onCloseSystemDialogs((String)msg.obj); 2625 } 2626 } break; 2627 case DISPATCH_DRAG_EVENT: 2628 case DISPATCH_DRAG_LOCATION_EVENT: { 2629 DragEvent event = (DragEvent)msg.obj; 2630 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2631 handleDragEvent(event); 2632 } break; 2633 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2634 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2635 } break; 2636 case UPDATE_CONFIGURATION: { 2637 Configuration config = (Configuration)msg.obj; 2638 if (config.isOtherSeqNewer(mLastConfiguration)) { 2639 config = mLastConfiguration; 2640 } 2641 updateConfiguration(config, false); 2642 } break; 2643 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2644 if (mView != null) { 2645 getAccessibilityInteractionController() 2646 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2647 } 2648 } break; 2649 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2650 if (mView != null) { 2651 getAccessibilityInteractionController() 2652 .perfromAccessibilityActionUiThread(msg); 2653 } 2654 } break; 2655 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2656 if (mView != null) { 2657 getAccessibilityInteractionController() 2658 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2659 } 2660 } break; 2661 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: { 2662 if (mView != null) { 2663 getAccessibilityInteractionController() 2664 .findAccessibilityNodeInfosByTextUiThread(msg); 2665 } 2666 } break; 2667 } 2668 } 2669 2670 /** 2671 * Something in the current window tells us we need to change the touch mode. For 2672 * example, we are not in touch mode, and the user touches the screen. 2673 * 2674 * If the touch mode has changed, tell the window manager, and handle it locally. 2675 * 2676 * @param inTouchMode Whether we want to be in touch mode. 2677 * @return True if the touch mode changed and focus changed was changed as a result 2678 */ 2679 boolean ensureTouchMode(boolean inTouchMode) { 2680 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2681 + "touch mode is " + mAttachInfo.mInTouchMode); 2682 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2683 2684 // tell the window manager 2685 try { 2686 sWindowSession.setInTouchMode(inTouchMode); 2687 } catch (RemoteException e) { 2688 throw new RuntimeException(e); 2689 } 2690 2691 // handle the change 2692 return ensureTouchModeLocally(inTouchMode); 2693 } 2694 2695 /** 2696 * Ensure that the touch mode for this window is set, and if it is changing, 2697 * take the appropriate action. 2698 * @param inTouchMode Whether we want to be in touch mode. 2699 * @return True if the touch mode changed and focus changed was changed as a result 2700 */ 2701 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2702 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2703 + "touch mode is " + mAttachInfo.mInTouchMode); 2704 2705 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2706 2707 mAttachInfo.mInTouchMode = inTouchMode; 2708 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2709 2710 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2711 } 2712 2713 private boolean enterTouchMode() { 2714 if (mView != null) { 2715 if (mView.hasFocus()) { 2716 // note: not relying on mFocusedView here because this could 2717 // be when the window is first being added, and mFocused isn't 2718 // set yet. 2719 final View focused = mView.findFocus(); 2720 if (focused != null && !focused.isFocusableInTouchMode()) { 2721 2722 final ViewGroup ancestorToTakeFocus = 2723 findAncestorToTakeFocusInTouchMode(focused); 2724 if (ancestorToTakeFocus != null) { 2725 // there is an ancestor that wants focus after its descendants that 2726 // is focusable in touch mode.. give it focus 2727 return ancestorToTakeFocus.requestFocus(); 2728 } else { 2729 // nothing appropriate to have focus in touch mode, clear it out 2730 mView.unFocus(); 2731 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2732 mFocusedView = null; 2733 return true; 2734 } 2735 } 2736 } 2737 } 2738 return false; 2739 } 2740 2741 2742 /** 2743 * Find an ancestor of focused that wants focus after its descendants and is 2744 * focusable in touch mode. 2745 * @param focused The currently focused view. 2746 * @return An appropriate view, or null if no such view exists. 2747 */ 2748 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2749 ViewParent parent = focused.getParent(); 2750 while (parent instanceof ViewGroup) { 2751 final ViewGroup vgParent = (ViewGroup) parent; 2752 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2753 && vgParent.isFocusableInTouchMode()) { 2754 return vgParent; 2755 } 2756 if (vgParent.isRootNamespace()) { 2757 return null; 2758 } else { 2759 parent = vgParent.getParent(); 2760 } 2761 } 2762 return null; 2763 } 2764 2765 private boolean leaveTouchMode() { 2766 if (mView != null) { 2767 if (mView.hasFocus()) { 2768 // i learned the hard way to not trust mFocusedView :) 2769 mFocusedView = mView.findFocus(); 2770 if (!(mFocusedView instanceof ViewGroup)) { 2771 // some view has focus, let it keep it 2772 return false; 2773 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2774 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2775 // some view group has focus, and doesn't prefer its children 2776 // over itself for focus, so let them keep it. 2777 return false; 2778 } 2779 } 2780 2781 // find the best view to give focus to in this brave new non-touch-mode 2782 // world 2783 final View focused = focusSearch(null, View.FOCUS_DOWN); 2784 if (focused != null) { 2785 return focused.requestFocus(View.FOCUS_DOWN); 2786 } 2787 } 2788 return false; 2789 } 2790 2791 private void deliverInputEvent(QueuedInputEvent q) { 2792 if (ViewDebug.DEBUG_LATENCY) { 2793 q.mDeliverTimeNanos = System.nanoTime(); 2794 } 2795 2796 if (q.mEvent instanceof KeyEvent) { 2797 deliverKeyEvent(q); 2798 } else { 2799 final int source = q.mEvent.getSource(); 2800 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2801 deliverPointerEvent(q); 2802 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 2803 deliverTrackballEvent(q); 2804 } else { 2805 deliverGenericMotionEvent(q); 2806 } 2807 } 2808 } 2809 2810 private void deliverPointerEvent(QueuedInputEvent q) { 2811 final MotionEvent event = (MotionEvent)q.mEvent; 2812 final boolean isTouchEvent = event.isTouchEvent(); 2813 if (mInputEventConsistencyVerifier != null) { 2814 if (isTouchEvent) { 2815 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2816 } else { 2817 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2818 } 2819 } 2820 2821 // If there is no view, then the event will not be handled. 2822 if (mView == null || !mAdded) { 2823 finishInputEvent(q, false); 2824 return; 2825 } 2826 2827 // Translate the pointer event for compatibility, if needed. 2828 if (mTranslator != null) { 2829 mTranslator.translateEventInScreenToAppWindow(event); 2830 } 2831 2832 // Enter touch mode on down or scroll. 2833 final int action = event.getAction(); 2834 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2835 ensureTouchMode(true); 2836 } 2837 2838 // Offset the scroll position. 2839 if (mCurScrollY != 0) { 2840 event.offsetLocation(0, mCurScrollY); 2841 } 2842 if (MEASURE_LATENCY) { 2843 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2844 } 2845 2846 // Remember the touch position for possible drag-initiation. 2847 if (isTouchEvent) { 2848 mLastTouchPoint.x = event.getRawX(); 2849 mLastTouchPoint.y = event.getRawY(); 2850 } 2851 2852 // Dispatch touch to view hierarchy. 2853 boolean handled = mView.dispatchPointerEvent(event); 2854 if (MEASURE_LATENCY) { 2855 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2856 } 2857 if (handled) { 2858 finishInputEvent(q, true); 2859 return; 2860 } 2861 2862 // Pointer event was unhandled. 2863 finishInputEvent(q, false); 2864 } 2865 2866 private void deliverTrackballEvent(QueuedInputEvent q) { 2867 final MotionEvent event = (MotionEvent)q.mEvent; 2868 if (mInputEventConsistencyVerifier != null) { 2869 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2870 } 2871 2872 // If there is no view, then the event will not be handled. 2873 if (mView == null || !mAdded) { 2874 finishInputEvent(q, false); 2875 return; 2876 } 2877 2878 // Deliver the trackball event to the view. 2879 if (mView.dispatchTrackballEvent(event)) { 2880 // If we reach this, we delivered a trackball event to mView and 2881 // mView consumed it. Because we will not translate the trackball 2882 // event into a key event, touch mode will not exit, so we exit 2883 // touch mode here. 2884 ensureTouchMode(false); 2885 2886 finishInputEvent(q, true); 2887 mLastTrackballTime = Integer.MIN_VALUE; 2888 return; 2889 } 2890 2891 // Translate the trackball event into DPAD keys and try to deliver those. 2892 final TrackballAxis x = mTrackballAxisX; 2893 final TrackballAxis y = mTrackballAxisY; 2894 2895 long curTime = SystemClock.uptimeMillis(); 2896 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2897 // It has been too long since the last movement, 2898 // so restart at the beginning. 2899 x.reset(0); 2900 y.reset(0); 2901 mLastTrackballTime = curTime; 2902 } 2903 2904 final int action = event.getAction(); 2905 final int metaState = event.getMetaState(); 2906 switch (action) { 2907 case MotionEvent.ACTION_DOWN: 2908 x.reset(2); 2909 y.reset(2); 2910 dispatchKey(new KeyEvent(curTime, curTime, 2911 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2912 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2913 InputDevice.SOURCE_KEYBOARD)); 2914 break; 2915 case MotionEvent.ACTION_UP: 2916 x.reset(2); 2917 y.reset(2); 2918 dispatchKey(new KeyEvent(curTime, curTime, 2919 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2920 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2921 InputDevice.SOURCE_KEYBOARD)); 2922 break; 2923 } 2924 2925 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2926 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2927 + " move=" + event.getX() 2928 + " / Y=" + y.position + " step=" 2929 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2930 + " move=" + event.getY()); 2931 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2932 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2933 2934 // Generate DPAD events based on the trackball movement. 2935 // We pick the axis that has moved the most as the direction of 2936 // the DPAD. When we generate DPAD events for one axis, then the 2937 // other axis is reset -- we don't want to perform DPAD jumps due 2938 // to slight movements in the trackball when making major movements 2939 // along the other axis. 2940 int keycode = 0; 2941 int movement = 0; 2942 float accel = 1; 2943 if (xOff > yOff) { 2944 movement = x.generate((2/event.getXPrecision())); 2945 if (movement != 0) { 2946 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2947 : KeyEvent.KEYCODE_DPAD_LEFT; 2948 accel = x.acceleration; 2949 y.reset(2); 2950 } 2951 } else if (yOff > 0) { 2952 movement = y.generate((2/event.getYPrecision())); 2953 if (movement != 0) { 2954 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2955 : KeyEvent.KEYCODE_DPAD_UP; 2956 accel = y.acceleration; 2957 x.reset(2); 2958 } 2959 } 2960 2961 if (keycode != 0) { 2962 if (movement < 0) movement = -movement; 2963 int accelMovement = (int)(movement * accel); 2964 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2965 + " accelMovement=" + accelMovement 2966 + " accel=" + accel); 2967 if (accelMovement > movement) { 2968 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2969 + keycode); 2970 movement--; 2971 int repeatCount = accelMovement - movement; 2972 dispatchKey(new KeyEvent(curTime, curTime, 2973 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 2974 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2975 InputDevice.SOURCE_KEYBOARD)); 2976 } 2977 while (movement > 0) { 2978 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 2979 + keycode); 2980 movement--; 2981 curTime = SystemClock.uptimeMillis(); 2982 dispatchKey(new KeyEvent(curTime, curTime, 2983 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 2984 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2985 InputDevice.SOURCE_KEYBOARD)); 2986 dispatchKey(new KeyEvent(curTime, curTime, 2987 KeyEvent.ACTION_UP, keycode, 0, metaState, 2988 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2989 InputDevice.SOURCE_KEYBOARD)); 2990 } 2991 mLastTrackballTime = curTime; 2992 } 2993 2994 // Unfortunately we can't tell whether the application consumed the keys, so 2995 // we always consider the trackball event handled. 2996 finishInputEvent(q, true); 2997 } 2998 2999 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3000 final MotionEvent event = (MotionEvent)q.mEvent; 3001 if (mInputEventConsistencyVerifier != null) { 3002 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3003 } 3004 3005 final int source = event.getSource(); 3006 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3007 3008 // If there is no view, then the event will not be handled. 3009 if (mView == null || !mAdded) { 3010 if (isJoystick) { 3011 updateJoystickDirection(event, false); 3012 } 3013 finishInputEvent(q, false); 3014 return; 3015 } 3016 3017 // Deliver the event to the view. 3018 if (mView.dispatchGenericMotionEvent(event)) { 3019 if (isJoystick) { 3020 updateJoystickDirection(event, false); 3021 } 3022 finishInputEvent(q, true); 3023 return; 3024 } 3025 3026 if (isJoystick) { 3027 // Translate the joystick event into DPAD keys and try to deliver those. 3028 updateJoystickDirection(event, true); 3029 finishInputEvent(q, true); 3030 } else { 3031 finishInputEvent(q, false); 3032 } 3033 } 3034 3035 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3036 final long time = event.getEventTime(); 3037 final int metaState = event.getMetaState(); 3038 final int deviceId = event.getDeviceId(); 3039 final int source = event.getSource(); 3040 3041 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3042 if (xDirection == 0) { 3043 xDirection = joystickAxisValueToDirection(event.getX()); 3044 } 3045 3046 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3047 if (yDirection == 0) { 3048 yDirection = joystickAxisValueToDirection(event.getY()); 3049 } 3050 3051 if (xDirection != mLastJoystickXDirection) { 3052 if (mLastJoystickXKeyCode != 0) { 3053 dispatchKey(new KeyEvent(time, time, 3054 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3055 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3056 mLastJoystickXKeyCode = 0; 3057 } 3058 3059 mLastJoystickXDirection = xDirection; 3060 3061 if (xDirection != 0 && synthesizeNewKeys) { 3062 mLastJoystickXKeyCode = xDirection > 0 3063 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3064 dispatchKey(new KeyEvent(time, time, 3065 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3066 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3067 } 3068 } 3069 3070 if (yDirection != mLastJoystickYDirection) { 3071 if (mLastJoystickYKeyCode != 0) { 3072 dispatchKey(new KeyEvent(time, time, 3073 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3074 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3075 mLastJoystickYKeyCode = 0; 3076 } 3077 3078 mLastJoystickYDirection = yDirection; 3079 3080 if (yDirection != 0 && synthesizeNewKeys) { 3081 mLastJoystickYKeyCode = yDirection > 0 3082 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3083 dispatchKey(new KeyEvent(time, time, 3084 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3085 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3086 } 3087 } 3088 } 3089 3090 private static int joystickAxisValueToDirection(float value) { 3091 if (value >= 0.5f) { 3092 return 1; 3093 } else if (value <= -0.5f) { 3094 return -1; 3095 } else { 3096 return 0; 3097 } 3098 } 3099 3100 /** 3101 * Returns true if the key is used for keyboard navigation. 3102 * @param keyEvent The key event. 3103 * @return True if the key is used for keyboard navigation. 3104 */ 3105 private static boolean isNavigationKey(KeyEvent keyEvent) { 3106 switch (keyEvent.getKeyCode()) { 3107 case KeyEvent.KEYCODE_DPAD_LEFT: 3108 case KeyEvent.KEYCODE_DPAD_RIGHT: 3109 case KeyEvent.KEYCODE_DPAD_UP: 3110 case KeyEvent.KEYCODE_DPAD_DOWN: 3111 case KeyEvent.KEYCODE_DPAD_CENTER: 3112 case KeyEvent.KEYCODE_PAGE_UP: 3113 case KeyEvent.KEYCODE_PAGE_DOWN: 3114 case KeyEvent.KEYCODE_MOVE_HOME: 3115 case KeyEvent.KEYCODE_MOVE_END: 3116 case KeyEvent.KEYCODE_TAB: 3117 case KeyEvent.KEYCODE_SPACE: 3118 case KeyEvent.KEYCODE_ENTER: 3119 return true; 3120 } 3121 return false; 3122 } 3123 3124 /** 3125 * Returns true if the key is used for typing. 3126 * @param keyEvent The key event. 3127 * @return True if the key is used for typing. 3128 */ 3129 private static boolean isTypingKey(KeyEvent keyEvent) { 3130 return keyEvent.getUnicodeChar() > 0; 3131 } 3132 3133 /** 3134 * See if the key event means we should leave touch mode (and leave touch mode if so). 3135 * @param event The key event. 3136 * @return Whether this key event should be consumed (meaning the act of 3137 * leaving touch mode alone is considered the event). 3138 */ 3139 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3140 // Only relevant in touch mode. 3141 if (!mAttachInfo.mInTouchMode) { 3142 return false; 3143 } 3144 3145 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3146 final int action = event.getAction(); 3147 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3148 return false; 3149 } 3150 3151 // Don't leave touch mode if the IME told us not to. 3152 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3153 return false; 3154 } 3155 3156 // If the key can be used for keyboard navigation then leave touch mode 3157 // and select a focused view if needed (in ensureTouchMode). 3158 // When a new focused view is selected, we consume the navigation key because 3159 // navigation doesn't make much sense unless a view already has focus so 3160 // the key's purpose is to set focus. 3161 if (isNavigationKey(event)) { 3162 return ensureTouchMode(false); 3163 } 3164 3165 // If the key can be used for typing then leave touch mode 3166 // and select a focused view if needed (in ensureTouchMode). 3167 // Always allow the view to process the typing key. 3168 if (isTypingKey(event)) { 3169 ensureTouchMode(false); 3170 return false; 3171 } 3172 3173 return false; 3174 } 3175 3176 private void deliverKeyEvent(QueuedInputEvent q) { 3177 final KeyEvent event = (KeyEvent)q.mEvent; 3178 if (mInputEventConsistencyVerifier != null) { 3179 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3180 } 3181 3182 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3183 // If there is no view, then the event will not be handled. 3184 if (mView == null || !mAdded) { 3185 finishInputEvent(q, false); 3186 return; 3187 } 3188 3189 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3190 3191 // Perform predispatching before the IME. 3192 if (mView.dispatchKeyEventPreIme(event)) { 3193 finishInputEvent(q, true); 3194 return; 3195 } 3196 3197 // Dispatch to the IME before propagating down the view hierarchy. 3198 // The IME will eventually call back into handleImeFinishedEvent. 3199 if (mLastWasImTarget) { 3200 InputMethodManager imm = InputMethodManager.peekInstance(); 3201 if (imm != null) { 3202 final int seq = event.getSequenceNumber(); 3203 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3204 + seq + " event=" + event); 3205 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3206 return; 3207 } 3208 } 3209 } 3210 3211 // Not dispatching to IME, continue with post IME actions. 3212 deliverKeyEventPostIme(q); 3213 } 3214 3215 void handleImeFinishedEvent(int seq, boolean handled) { 3216 final QueuedInputEvent q = mCurrentInputEvent; 3217 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3218 final KeyEvent event = (KeyEvent)q.mEvent; 3219 if (DEBUG_IMF) { 3220 Log.v(TAG, "IME finished event: seq=" + seq 3221 + " handled=" + handled + " event=" + event); 3222 } 3223 if (handled) { 3224 finishInputEvent(q, true); 3225 } else { 3226 deliverKeyEventPostIme(q); 3227 } 3228 } else { 3229 if (DEBUG_IMF) { 3230 Log.v(TAG, "IME finished event: seq=" + seq 3231 + " handled=" + handled + ", event not found!"); 3232 } 3233 } 3234 } 3235 3236 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3237 final KeyEvent event = (KeyEvent)q.mEvent; 3238 if (ViewDebug.DEBUG_LATENCY) { 3239 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3240 } 3241 3242 // If the view went away, then the event will not be handled. 3243 if (mView == null || !mAdded) { 3244 finishInputEvent(q, false); 3245 return; 3246 } 3247 3248 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3249 if (checkForLeavingTouchModeAndConsume(event)) { 3250 finishInputEvent(q, true); 3251 return; 3252 } 3253 3254 // Make sure the fallback event policy sees all keys that will be delivered to the 3255 // view hierarchy. 3256 mFallbackEventHandler.preDispatchKeyEvent(event); 3257 3258 // Deliver the key to the view hierarchy. 3259 if (mView.dispatchKeyEvent(event)) { 3260 finishInputEvent(q, true); 3261 return; 3262 } 3263 3264 // If the Control modifier is held, try to interpret the key as a shortcut. 3265 if (event.getAction() == KeyEvent.ACTION_UP 3266 && event.isCtrlPressed() 3267 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3268 if (mView.dispatchKeyShortcutEvent(event)) { 3269 finishInputEvent(q, true); 3270 return; 3271 } 3272 } 3273 3274 // Apply the fallback event policy. 3275 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3276 finishInputEvent(q, true); 3277 return; 3278 } 3279 3280 // Handle automatic focus changes. 3281 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3282 int direction = 0; 3283 switch (event.getKeyCode()) { 3284 case KeyEvent.KEYCODE_DPAD_LEFT: 3285 if (event.hasNoModifiers()) { 3286 direction = View.FOCUS_LEFT; 3287 } 3288 break; 3289 case KeyEvent.KEYCODE_DPAD_RIGHT: 3290 if (event.hasNoModifiers()) { 3291 direction = View.FOCUS_RIGHT; 3292 } 3293 break; 3294 case KeyEvent.KEYCODE_DPAD_UP: 3295 if (event.hasNoModifiers()) { 3296 direction = View.FOCUS_UP; 3297 } 3298 break; 3299 case KeyEvent.KEYCODE_DPAD_DOWN: 3300 if (event.hasNoModifiers()) { 3301 direction = View.FOCUS_DOWN; 3302 } 3303 break; 3304 case KeyEvent.KEYCODE_TAB: 3305 if (event.hasNoModifiers()) { 3306 direction = View.FOCUS_FORWARD; 3307 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3308 direction = View.FOCUS_BACKWARD; 3309 } 3310 break; 3311 } 3312 3313 if (direction != 0) { 3314 View focused = mView != null ? mView.findFocus() : null; 3315 if (focused != null) { 3316 View v = focused.focusSearch(direction); 3317 if (v != null && v != focused) { 3318 // do the math the get the interesting rect 3319 // of previous focused into the coord system of 3320 // newly focused view 3321 focused.getFocusedRect(mTempRect); 3322 if (mView instanceof ViewGroup) { 3323 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3324 focused, mTempRect); 3325 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3326 v, mTempRect); 3327 } 3328 if (v.requestFocus(direction, mTempRect)) { 3329 playSoundEffect( 3330 SoundEffectConstants.getContantForFocusDirection(direction)); 3331 finishInputEvent(q, true); 3332 return; 3333 } 3334 } 3335 3336 // Give the focused view a last chance to handle the dpad key. 3337 if (mView.dispatchUnhandledMove(focused, direction)) { 3338 finishInputEvent(q, true); 3339 return; 3340 } 3341 } 3342 } 3343 } 3344 3345 // Key was unhandled. 3346 finishInputEvent(q, false); 3347 } 3348 3349 /* drag/drop */ 3350 void setLocalDragState(Object obj) { 3351 mLocalDragState = obj; 3352 } 3353 3354 private void handleDragEvent(DragEvent event) { 3355 // From the root, only drag start/end/location are dispatched. entered/exited 3356 // are determined and dispatched by the viewgroup hierarchy, who then report 3357 // that back here for ultimate reporting back to the framework. 3358 if (mView != null && mAdded) { 3359 final int what = event.mAction; 3360 3361 if (what == DragEvent.ACTION_DRAG_EXITED) { 3362 // A direct EXITED event means that the window manager knows we've just crossed 3363 // a window boundary, so the current drag target within this one must have 3364 // just been exited. Send it the usual notifications and then we're done 3365 // for now. 3366 mView.dispatchDragEvent(event); 3367 } else { 3368 // Cache the drag description when the operation starts, then fill it in 3369 // on subsequent calls as a convenience 3370 if (what == DragEvent.ACTION_DRAG_STARTED) { 3371 mCurrentDragView = null; // Start the current-recipient tracking 3372 mDragDescription = event.mClipDescription; 3373 } else { 3374 event.mClipDescription = mDragDescription; 3375 } 3376 3377 // For events with a [screen] location, translate into window coordinates 3378 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3379 mDragPoint.set(event.mX, event.mY); 3380 if (mTranslator != null) { 3381 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3382 } 3383 3384 if (mCurScrollY != 0) { 3385 mDragPoint.offset(0, mCurScrollY); 3386 } 3387 3388 event.mX = mDragPoint.x; 3389 event.mY = mDragPoint.y; 3390 } 3391 3392 // Remember who the current drag target is pre-dispatch 3393 final View prevDragView = mCurrentDragView; 3394 3395 // Now dispatch the drag/drop event 3396 boolean result = mView.dispatchDragEvent(event); 3397 3398 // If we changed apparent drag target, tell the OS about it 3399 if (prevDragView != mCurrentDragView) { 3400 try { 3401 if (prevDragView != null) { 3402 sWindowSession.dragRecipientExited(mWindow); 3403 } 3404 if (mCurrentDragView != null) { 3405 sWindowSession.dragRecipientEntered(mWindow); 3406 } 3407 } catch (RemoteException e) { 3408 Slog.e(TAG, "Unable to note drag target change"); 3409 } 3410 } 3411 3412 // Report the drop result when we're done 3413 if (what == DragEvent.ACTION_DROP) { 3414 mDragDescription = null; 3415 try { 3416 Log.i(TAG, "Reporting drop result: " + result); 3417 sWindowSession.reportDropResult(mWindow, result); 3418 } catch (RemoteException e) { 3419 Log.e(TAG, "Unable to report drop result"); 3420 } 3421 } 3422 3423 // When the drag operation ends, release any local state object 3424 // that may have been in use 3425 if (what == DragEvent.ACTION_DRAG_ENDED) { 3426 setLocalDragState(null); 3427 } 3428 } 3429 } 3430 event.recycle(); 3431 } 3432 3433 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3434 if (mSeq != args.seq) { 3435 // The sequence has changed, so we need to update our value and make 3436 // sure to do a traversal afterward so the window manager is given our 3437 // most recent data. 3438 mSeq = args.seq; 3439 mAttachInfo.mForceReportNewAttributes = true; 3440 scheduleTraversals(); 3441 } 3442 if (mView == null) return; 3443 if (args.localChanges != 0) { 3444 if (mAttachInfo != null) { 3445 mAttachInfo.mSystemUiVisibility = 3446 (mAttachInfo.mSystemUiVisibility&~args.localChanges) 3447 | (args.localValue&args.localChanges); 3448 } 3449 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3450 mAttachInfo.mRecomputeGlobalAttributes = true; 3451 scheduleTraversals(); 3452 } 3453 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3454 } 3455 3456 public void getLastTouchPoint(Point outLocation) { 3457 outLocation.x = (int) mLastTouchPoint.x; 3458 outLocation.y = (int) mLastTouchPoint.y; 3459 } 3460 3461 public void setDragFocus(View newDragTarget) { 3462 if (mCurrentDragView != newDragTarget) { 3463 mCurrentDragView = newDragTarget; 3464 } 3465 } 3466 3467 private AudioManager getAudioManager() { 3468 if (mView == null) { 3469 throw new IllegalStateException("getAudioManager called when there is no mView"); 3470 } 3471 if (mAudioManager == null) { 3472 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3473 } 3474 return mAudioManager; 3475 } 3476 3477 public AccessibilityInteractionController getAccessibilityInteractionController() { 3478 if (mView == null) { 3479 throw new IllegalStateException("getAccessibilityInteractionController" 3480 + " called when there is no mView"); 3481 } 3482 if (mAccessibilityInteractionController == null) { 3483 mAccessibilityInteractionController = new AccessibilityInteractionController(); 3484 } 3485 return mAccessibilityInteractionController; 3486 } 3487 3488 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3489 boolean insetsPending) throws RemoteException { 3490 3491 float appScale = mAttachInfo.mApplicationScale; 3492 boolean restore = false; 3493 if (params != null && mTranslator != null) { 3494 restore = true; 3495 params.backup(); 3496 mTranslator.translateWindowLayout(params); 3497 } 3498 if (params != null) { 3499 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3500 } 3501 mPendingConfiguration.seq = 0; 3502 //Log.d(TAG, ">>>>>> CALLING relayout"); 3503 if (params != null && mOrigWindowType != params.type) { 3504 // For compatibility with old apps, don't crash here. 3505 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3506 Slog.w(TAG, "Window type can not be changed after " 3507 + "the window is added; ignoring change of " + mView); 3508 params.type = mOrigWindowType; 3509 } 3510 } 3511 int relayoutResult = sWindowSession.relayout( 3512 mWindow, mSeq, params, 3513 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3514 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3515 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3516 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3517 mPendingConfiguration, mSurface); 3518 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3519 if (restore) { 3520 params.restore(); 3521 } 3522 3523 if (mTranslator != null) { 3524 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3525 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3526 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3527 } 3528 return relayoutResult; 3529 } 3530 3531 /** 3532 * {@inheritDoc} 3533 */ 3534 public void playSoundEffect(int effectId) { 3535 checkThread(); 3536 3537 try { 3538 final AudioManager audioManager = getAudioManager(); 3539 3540 switch (effectId) { 3541 case SoundEffectConstants.CLICK: 3542 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3543 return; 3544 case SoundEffectConstants.NAVIGATION_DOWN: 3545 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3546 return; 3547 case SoundEffectConstants.NAVIGATION_LEFT: 3548 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3549 return; 3550 case SoundEffectConstants.NAVIGATION_RIGHT: 3551 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3552 return; 3553 case SoundEffectConstants.NAVIGATION_UP: 3554 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3555 return; 3556 default: 3557 throw new IllegalArgumentException("unknown effect id " + effectId + 3558 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3559 } 3560 } catch (IllegalStateException e) { 3561 // Exception thrown by getAudioManager() when mView is null 3562 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3563 e.printStackTrace(); 3564 } 3565 } 3566 3567 /** 3568 * {@inheritDoc} 3569 */ 3570 public boolean performHapticFeedback(int effectId, boolean always) { 3571 try { 3572 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3573 } catch (RemoteException e) { 3574 return false; 3575 } 3576 } 3577 3578 /** 3579 * {@inheritDoc} 3580 */ 3581 public View focusSearch(View focused, int direction) { 3582 checkThread(); 3583 if (!(mView instanceof ViewGroup)) { 3584 return null; 3585 } 3586 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3587 } 3588 3589 public void debug() { 3590 mView.debug(); 3591 } 3592 3593 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3594 if (mView != null) { 3595 getGfxInfo(mView, info); 3596 } else { 3597 info[0] = info[1] = 0; 3598 } 3599 } 3600 3601 private void getGfxInfo(View view, int[] info) { 3602 DisplayList displayList = view.mDisplayList; 3603 info[0]++; 3604 if (displayList != null) { 3605 info[1] += displayList.getSize(); 3606 } 3607 3608 if (view instanceof ViewGroup) { 3609 ViewGroup group = (ViewGroup) view; 3610 3611 int count = group.getChildCount(); 3612 for (int i = 0; i < count; i++) { 3613 getGfxInfo(group.getChildAt(i), info); 3614 } 3615 } 3616 } 3617 3618 public void die(boolean immediate) { 3619 if (immediate) { 3620 doDie(); 3621 } else { 3622 sendEmptyMessage(DIE); 3623 } 3624 } 3625 3626 void doDie() { 3627 checkThread(); 3628 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3629 synchronized (this) { 3630 if (mAdded) { 3631 mAdded = false; 3632 dispatchDetachedFromWindow(); 3633 } 3634 3635 if (mAdded && !mFirst) { 3636 destroyHardwareRenderer(); 3637 3638 int viewVisibility = mView.getVisibility(); 3639 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3640 if (mWindowAttributesChanged || viewVisibilityChanged) { 3641 // If layout params have been changed, first give them 3642 // to the window manager to make sure it has the correct 3643 // animation info. 3644 try { 3645 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3646 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3647 sWindowSession.finishDrawing(mWindow); 3648 } 3649 } catch (RemoteException e) { 3650 } 3651 } 3652 3653 mSurface.release(); 3654 } 3655 } 3656 } 3657 3658 public void requestUpdateConfiguration(Configuration config) { 3659 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3660 sendMessage(msg); 3661 } 3662 3663 private void destroyHardwareRenderer() { 3664 if (mAttachInfo.mHardwareRenderer != null) { 3665 mAttachInfo.mHardwareRenderer.destroy(true); 3666 mAttachInfo.mHardwareRenderer = null; 3667 mAttachInfo.mHardwareAccelerated = false; 3668 } 3669 } 3670 3671 void dispatchImeFinishedEvent(int seq, boolean handled) { 3672 Message msg = obtainMessage(IME_FINISHED_EVENT); 3673 msg.arg1 = seq; 3674 msg.arg2 = handled ? 1 : 0; 3675 sendMessage(msg); 3676 } 3677 3678 public void dispatchResized(int w, int h, Rect coveredInsets, 3679 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3680 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3681 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3682 + " visibleInsets=" + visibleInsets.toShortString() 3683 + " reportDraw=" + reportDraw); 3684 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3685 if (mTranslator != null) { 3686 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3687 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3688 w *= mTranslator.applicationInvertedScale; 3689 h *= mTranslator.applicationInvertedScale; 3690 } 3691 msg.arg1 = w; 3692 msg.arg2 = h; 3693 ResizedInfo ri = new ResizedInfo(); 3694 ri.coveredInsets = new Rect(coveredInsets); 3695 ri.visibleInsets = new Rect(visibleInsets); 3696 ri.newConfig = newConfig; 3697 msg.obj = ri; 3698 sendMessage(msg); 3699 } 3700 3701 /** 3702 * Represents a pending input event that is waiting in a queue. 3703 * 3704 * Input events are processed in serial order by the timestamp specified by 3705 * {@link InputEvent#getEventTime()}. In general, the input dispatcher delivers 3706 * one input event to the application at a time and waits for the application 3707 * to finish handling it before delivering the next one. 3708 * 3709 * However, because the application or IME can synthesize and inject multiple 3710 * key events at a time without going through the input dispatcher, we end up 3711 * needing a queue on the application's side. 3712 */ 3713 private static final class QueuedInputEvent { 3714 public static final int FLAG_DELIVER_POST_IME = 1 << 0; 3715 3716 public QueuedInputEvent mNext; 3717 3718 public InputEvent mEvent; 3719 public InputEventReceiver mReceiver; 3720 public int mFlags; 3721 3722 // Used for latency calculations. 3723 public long mReceiveTimeNanos; 3724 public long mDeliverTimeNanos; 3725 public long mDeliverPostImeTimeNanos; 3726 } 3727 3728 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 3729 InputEventReceiver receiver, int flags) { 3730 QueuedInputEvent q = mQueuedInputEventPool; 3731 if (q != null) { 3732 mQueuedInputEventPoolSize -= 1; 3733 mQueuedInputEventPool = q.mNext; 3734 q.mNext = null; 3735 } else { 3736 q = new QueuedInputEvent(); 3737 } 3738 3739 q.mEvent = event; 3740 q.mReceiver = receiver; 3741 q.mFlags = flags; 3742 return q; 3743 } 3744 3745 private void recycleQueuedInputEvent(QueuedInputEvent q) { 3746 q.mEvent = null; 3747 q.mReceiver = null; 3748 3749 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 3750 mQueuedInputEventPoolSize += 1; 3751 q.mNext = mQueuedInputEventPool; 3752 mQueuedInputEventPool = q; 3753 } 3754 } 3755 3756 void enqueueInputEvent(InputEvent event, 3757 InputEventReceiver receiver, int flags) { 3758 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 3759 3760 if (ViewDebug.DEBUG_LATENCY) { 3761 q.mReceiveTimeNanos = System.nanoTime(); 3762 q.mDeliverTimeNanos = 0; 3763 q.mDeliverPostImeTimeNanos = 0; 3764 } 3765 3766 // Always enqueue the input event in order, regardless of its time stamp. 3767 // We do this because the application or the IME may inject key events 3768 // in response to touch events and we want to ensure that the injected keys 3769 // are processed in the order they were received and we cannot trust that 3770 // the time stamp of injected events are monotonic. 3771 QueuedInputEvent last = mFirstPendingInputEvent; 3772 if (last == null) { 3773 mFirstPendingInputEvent = q; 3774 } else { 3775 while (last.mNext != null) { 3776 last = last.mNext; 3777 } 3778 last.mNext = q; 3779 } 3780 3781 scheduleProcessInputEvents(); 3782 } 3783 3784 private void scheduleProcessInputEvents() { 3785 if (!mProcessInputEventsPending) { 3786 mProcessInputEventsPending = true; 3787 sendEmptyMessage(DO_PROCESS_INPUT_EVENTS); 3788 } 3789 } 3790 3791 void processInputEvents() { 3792 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 3793 QueuedInputEvent q = mFirstPendingInputEvent; 3794 mFirstPendingInputEvent = q.mNext; 3795 q.mNext = null; 3796 mCurrentInputEvent = q; 3797 deliverInputEvent(q); 3798 } 3799 3800 // We are done processing all input events that we can process right now 3801 // so we can clear the pending flag immediately. 3802 if (mProcessInputEventsPending) { 3803 mProcessInputEventsPending = false; 3804 removeMessages(DO_PROCESS_INPUT_EVENTS); 3805 } 3806 } 3807 3808 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 3809 if (q != mCurrentInputEvent) { 3810 throw new IllegalStateException("finished input event out of order"); 3811 } 3812 3813 if (ViewDebug.DEBUG_LATENCY) { 3814 final long now = System.nanoTime(); 3815 final long eventTime = q.mEvent.getEventTimeNano(); 3816 final StringBuilder msg = new StringBuilder(); 3817 msg.append("Spent "); 3818 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 3819 msg.append("ms processing "); 3820 if (q.mEvent instanceof KeyEvent) { 3821 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 3822 msg.append("key event, action="); 3823 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 3824 } else { 3825 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 3826 msg.append("motion event, action="); 3827 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 3828 msg.append(", historySize="); 3829 msg.append(motionEvent.getHistorySize()); 3830 } 3831 msg.append(", handled="); 3832 msg.append(handled); 3833 msg.append(", received at +"); 3834 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 3835 if (q.mDeliverTimeNanos != 0) { 3836 msg.append("ms, delivered at +"); 3837 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 3838 } 3839 if (q.mDeliverPostImeTimeNanos != 0) { 3840 msg.append("ms, delivered post IME at +"); 3841 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 3842 } 3843 msg.append("ms, finished at +"); 3844 msg.append((now - eventTime) * 0.000001f); 3845 msg.append("ms."); 3846 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 3847 } 3848 3849 if (q.mReceiver != null) { 3850 q.mReceiver.finishInputEvent(q.mEvent, handled); 3851 } else if (q.mEvent instanceof MotionEvent) { 3852 // Event though key events are also recyclable, we only recycle motion events. 3853 // Historically, key events were not recyclable and applications expect 3854 // them to be immutable. We only ever recycle key events behind the 3855 // scenes where an application never sees them (so, not here). 3856 q.mEvent.recycle(); 3857 } 3858 3859 recycleQueuedInputEvent(q); 3860 3861 mCurrentInputEvent = null; 3862 if (mFirstPendingInputEvent != null) { 3863 scheduleProcessInputEvents(); 3864 } 3865 } 3866 3867 final class WindowInputEventReceiver extends InputEventReceiver { 3868 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 3869 super(inputChannel, looper); 3870 } 3871 3872 @Override 3873 public void onInputEvent(InputEvent event) { 3874 enqueueInputEvent(event, this, 0); 3875 } 3876 } 3877 WindowInputEventReceiver mInputEventReceiver; 3878 3879 public void dispatchKey(KeyEvent event) { 3880 enqueueInputEvent(event, null, 0); 3881 } 3882 3883 public void dispatchAppVisibility(boolean visible) { 3884 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3885 msg.arg1 = visible ? 1 : 0; 3886 sendMessage(msg); 3887 } 3888 3889 public void dispatchGetNewSurface() { 3890 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3891 sendMessage(msg); 3892 } 3893 3894 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3895 Message msg = Message.obtain(); 3896 msg.what = WINDOW_FOCUS_CHANGED; 3897 msg.arg1 = hasFocus ? 1 : 0; 3898 msg.arg2 = inTouchMode ? 1 : 0; 3899 sendMessage(msg); 3900 } 3901 3902 public void dispatchCloseSystemDialogs(String reason) { 3903 Message msg = Message.obtain(); 3904 msg.what = CLOSE_SYSTEM_DIALOGS; 3905 msg.obj = reason; 3906 sendMessage(msg); 3907 } 3908 3909 public void dispatchDragEvent(DragEvent event) { 3910 final int what; 3911 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3912 what = DISPATCH_DRAG_LOCATION_EVENT; 3913 removeMessages(what); 3914 } else { 3915 what = DISPATCH_DRAG_EVENT; 3916 } 3917 Message msg = obtainMessage(what, event); 3918 sendMessage(msg); 3919 } 3920 3921 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 3922 int localValue, int localChanges) { 3923 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 3924 args.seq = seq; 3925 args.globalVisibility = globalVisibility; 3926 args.localValue = localValue; 3927 args.localChanges = localChanges; 3928 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, args)); 3929 } 3930 3931 /** 3932 * The window is getting focus so if there is anything focused/selected 3933 * send an {@link AccessibilityEvent} to announce that. 3934 */ 3935 private void sendAccessibilityEvents() { 3936 if (!mAccessibilityManager.isEnabled()) { 3937 return; 3938 } 3939 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3940 View focusedView = mView.findFocus(); 3941 if (focusedView != null && focusedView != mView) { 3942 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3943 } 3944 } 3945 3946 /** 3947 * Post a callback to send a 3948 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3949 * This event is send at most once every 3950 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3951 */ 3952 private void postSendWindowContentChangedCallback() { 3953 if (mSendWindowContentChangedAccessibilityEvent == null) { 3954 mSendWindowContentChangedAccessibilityEvent = 3955 new SendWindowContentChangedAccessibilityEvent(); 3956 } 3957 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3958 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3959 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3960 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3961 } 3962 } 3963 3964 /** 3965 * Remove a posted callback to send a 3966 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3967 */ 3968 private void removeSendWindowContentChangedCallback() { 3969 if (mSendWindowContentChangedAccessibilityEvent != null) { 3970 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 3971 } 3972 } 3973 3974 public boolean showContextMenuForChild(View originalView) { 3975 return false; 3976 } 3977 3978 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 3979 return null; 3980 } 3981 3982 public void createContextMenu(ContextMenu menu) { 3983 } 3984 3985 public void childDrawableStateChanged(View child) { 3986 } 3987 3988 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 3989 if (mView == null) { 3990 return false; 3991 } 3992 mAccessibilityManager.sendAccessibilityEvent(event); 3993 return true; 3994 } 3995 3996 void checkThread() { 3997 if (mThread != Thread.currentThread()) { 3998 throw new CalledFromWrongThreadException( 3999 "Only the original thread that created a view hierarchy can touch its views."); 4000 } 4001 } 4002 4003 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4004 // ViewAncestor never intercepts touch event, so this can be a no-op 4005 } 4006 4007 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4008 boolean immediate) { 4009 return scrollToRectOrFocus(rectangle, immediate); 4010 } 4011 4012 class TakenSurfaceHolder extends BaseSurfaceHolder { 4013 @Override 4014 public boolean onAllowLockCanvas() { 4015 return mDrawingAllowed; 4016 } 4017 4018 @Override 4019 public void onRelayoutContainer() { 4020 // Not currently interesting -- from changing between fixed and layout size. 4021 } 4022 4023 public void setFormat(int format) { 4024 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4025 } 4026 4027 public void setType(int type) { 4028 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4029 } 4030 4031 @Override 4032 public void onUpdateSurface() { 4033 // We take care of format and type changes on our own. 4034 throw new IllegalStateException("Shouldn't be here"); 4035 } 4036 4037 public boolean isCreating() { 4038 return mIsCreating; 4039 } 4040 4041 @Override 4042 public void setFixedSize(int width, int height) { 4043 throw new UnsupportedOperationException( 4044 "Currently only support sizing from layout"); 4045 } 4046 4047 public void setKeepScreenOn(boolean screenOn) { 4048 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4049 } 4050 } 4051 4052 static class InputMethodCallback extends IInputMethodCallback.Stub { 4053 private WeakReference<ViewRootImpl> mViewAncestor; 4054 4055 public InputMethodCallback(ViewRootImpl viewAncestor) { 4056 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4057 } 4058 4059 public void finishedEvent(int seq, boolean handled) { 4060 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4061 if (viewAncestor != null) { 4062 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4063 } 4064 } 4065 4066 public void sessionCreated(IInputMethodSession session) { 4067 // Stub -- not for use in the client. 4068 } 4069 } 4070 4071 static class W extends IWindow.Stub { 4072 private final WeakReference<ViewRootImpl> mViewAncestor; 4073 4074 W(ViewRootImpl viewAncestor) { 4075 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4076 } 4077 4078 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4079 boolean reportDraw, Configuration newConfig) { 4080 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4081 if (viewAncestor != null) { 4082 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4083 newConfig); 4084 } 4085 } 4086 4087 public void dispatchAppVisibility(boolean visible) { 4088 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4089 if (viewAncestor != null) { 4090 viewAncestor.dispatchAppVisibility(visible); 4091 } 4092 } 4093 4094 public void dispatchGetNewSurface() { 4095 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4096 if (viewAncestor != null) { 4097 viewAncestor.dispatchGetNewSurface(); 4098 } 4099 } 4100 4101 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4102 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4103 if (viewAncestor != null) { 4104 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4105 } 4106 } 4107 4108 private static int checkCallingPermission(String permission) { 4109 try { 4110 return ActivityManagerNative.getDefault().checkPermission( 4111 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4112 } catch (RemoteException e) { 4113 return PackageManager.PERMISSION_DENIED; 4114 } 4115 } 4116 4117 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4118 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4119 if (viewAncestor != null) { 4120 final View view = viewAncestor.mView; 4121 if (view != null) { 4122 if (checkCallingPermission(Manifest.permission.DUMP) != 4123 PackageManager.PERMISSION_GRANTED) { 4124 throw new SecurityException("Insufficient permissions to invoke" 4125 + " executeCommand() from pid=" + Binder.getCallingPid() 4126 + ", uid=" + Binder.getCallingUid()); 4127 } 4128 4129 OutputStream clientStream = null; 4130 try { 4131 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4132 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4133 } catch (IOException e) { 4134 e.printStackTrace(); 4135 } finally { 4136 if (clientStream != null) { 4137 try { 4138 clientStream.close(); 4139 } catch (IOException e) { 4140 e.printStackTrace(); 4141 } 4142 } 4143 } 4144 } 4145 } 4146 } 4147 4148 public void closeSystemDialogs(String reason) { 4149 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4150 if (viewAncestor != null) { 4151 viewAncestor.dispatchCloseSystemDialogs(reason); 4152 } 4153 } 4154 4155 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4156 boolean sync) { 4157 if (sync) { 4158 try { 4159 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4160 } catch (RemoteException e) { 4161 } 4162 } 4163 } 4164 4165 public void dispatchWallpaperCommand(String action, int x, int y, 4166 int z, Bundle extras, boolean sync) { 4167 if (sync) { 4168 try { 4169 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4170 } catch (RemoteException e) { 4171 } 4172 } 4173 } 4174 4175 /* Drag/drop */ 4176 public void dispatchDragEvent(DragEvent event) { 4177 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4178 if (viewAncestor != null) { 4179 viewAncestor.dispatchDragEvent(event); 4180 } 4181 } 4182 4183 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4184 int localValue, int localChanges) { 4185 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4186 if (viewAncestor != null) { 4187 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4188 localValue, localChanges); 4189 } 4190 } 4191 } 4192 4193 /** 4194 * Maintains state information for a single trackball axis, generating 4195 * discrete (DPAD) movements based on raw trackball motion. 4196 */ 4197 static final class TrackballAxis { 4198 /** 4199 * The maximum amount of acceleration we will apply. 4200 */ 4201 static final float MAX_ACCELERATION = 20; 4202 4203 /** 4204 * The maximum amount of time (in milliseconds) between events in order 4205 * for us to consider the user to be doing fast trackball movements, 4206 * and thus apply an acceleration. 4207 */ 4208 static final long FAST_MOVE_TIME = 150; 4209 4210 /** 4211 * Scaling factor to the time (in milliseconds) between events to how 4212 * much to multiple/divide the current acceleration. When movement 4213 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4214 * FAST_MOVE_TIME it divides it. 4215 */ 4216 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4217 4218 float position; 4219 float absPosition; 4220 float acceleration = 1; 4221 long lastMoveTime = 0; 4222 int step; 4223 int dir; 4224 int nonAccelMovement; 4225 4226 void reset(int _step) { 4227 position = 0; 4228 acceleration = 1; 4229 lastMoveTime = 0; 4230 step = _step; 4231 dir = 0; 4232 } 4233 4234 /** 4235 * Add trackball movement into the state. If the direction of movement 4236 * has been reversed, the state is reset before adding the 4237 * movement (so that you don't have to compensate for any previously 4238 * collected movement before see the result of the movement in the 4239 * new direction). 4240 * 4241 * @return Returns the absolute value of the amount of movement 4242 * collected so far. 4243 */ 4244 float collect(float off, long time, String axis) { 4245 long normTime; 4246 if (off > 0) { 4247 normTime = (long)(off * FAST_MOVE_TIME); 4248 if (dir < 0) { 4249 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4250 position = 0; 4251 step = 0; 4252 acceleration = 1; 4253 lastMoveTime = 0; 4254 } 4255 dir = 1; 4256 } else if (off < 0) { 4257 normTime = (long)((-off) * FAST_MOVE_TIME); 4258 if (dir > 0) { 4259 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4260 position = 0; 4261 step = 0; 4262 acceleration = 1; 4263 lastMoveTime = 0; 4264 } 4265 dir = -1; 4266 } else { 4267 normTime = 0; 4268 } 4269 4270 // The number of milliseconds between each movement that is 4271 // considered "normal" and will not result in any acceleration 4272 // or deceleration, scaled by the offset we have here. 4273 if (normTime > 0) { 4274 long delta = time - lastMoveTime; 4275 lastMoveTime = time; 4276 float acc = acceleration; 4277 if (delta < normTime) { 4278 // The user is scrolling rapidly, so increase acceleration. 4279 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4280 if (scale > 1) acc *= scale; 4281 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4282 + off + " normTime=" + normTime + " delta=" + delta 4283 + " scale=" + scale + " acc=" + acc); 4284 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4285 } else { 4286 // The user is scrolling slowly, so decrease acceleration. 4287 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4288 if (scale > 1) acc /= scale; 4289 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4290 + off + " normTime=" + normTime + " delta=" + delta 4291 + " scale=" + scale + " acc=" + acc); 4292 acceleration = acc > 1 ? acc : 1; 4293 } 4294 } 4295 position += off; 4296 return (absPosition = Math.abs(position)); 4297 } 4298 4299 /** 4300 * Generate the number of discrete movement events appropriate for 4301 * the currently collected trackball movement. 4302 * 4303 * @param precision The minimum movement required to generate the 4304 * first discrete movement. 4305 * 4306 * @return Returns the number of discrete movements, either positive 4307 * or negative, or 0 if there is not enough trackball movement yet 4308 * for a discrete movement. 4309 */ 4310 int generate(float precision) { 4311 int movement = 0; 4312 nonAccelMovement = 0; 4313 do { 4314 final int dir = position >= 0 ? 1 : -1; 4315 switch (step) { 4316 // If we are going to execute the first step, then we want 4317 // to do this as soon as possible instead of waiting for 4318 // a full movement, in order to make things look responsive. 4319 case 0: 4320 if (absPosition < precision) { 4321 return movement; 4322 } 4323 movement += dir; 4324 nonAccelMovement += dir; 4325 step = 1; 4326 break; 4327 // If we have generated the first movement, then we need 4328 // to wait for the second complete trackball motion before 4329 // generating the second discrete movement. 4330 case 1: 4331 if (absPosition < 2) { 4332 return movement; 4333 } 4334 movement += dir; 4335 nonAccelMovement += dir; 4336 position += dir > 0 ? -2 : 2; 4337 absPosition = Math.abs(position); 4338 step = 2; 4339 break; 4340 // After the first two, we generate discrete movements 4341 // consistently with the trackball, applying an acceleration 4342 // if the trackball is moving quickly. This is a simple 4343 // acceleration on top of what we already compute based 4344 // on how quickly the wheel is being turned, to apply 4345 // a longer increasing acceleration to continuous movement 4346 // in one direction. 4347 default: 4348 if (absPosition < 1) { 4349 return movement; 4350 } 4351 movement += dir; 4352 position += dir >= 0 ? -1 : 1; 4353 absPosition = Math.abs(position); 4354 float acc = acceleration; 4355 acc *= 1.1f; 4356 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4357 break; 4358 } 4359 } while (true); 4360 } 4361 } 4362 4363 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4364 public CalledFromWrongThreadException(String msg) { 4365 super(msg); 4366 } 4367 } 4368 4369 private SurfaceHolder mHolder = new SurfaceHolder() { 4370 // we only need a SurfaceHolder for opengl. it would be nice 4371 // to implement everything else though, especially the callback 4372 // support (opengl doesn't make use of it right now, but eventually 4373 // will). 4374 public Surface getSurface() { 4375 return mSurface; 4376 } 4377 4378 public boolean isCreating() { 4379 return false; 4380 } 4381 4382 public void addCallback(Callback callback) { 4383 } 4384 4385 public void removeCallback(Callback callback) { 4386 } 4387 4388 public void setFixedSize(int width, int height) { 4389 } 4390 4391 public void setSizeFromLayout() { 4392 } 4393 4394 public void setFormat(int format) { 4395 } 4396 4397 public void setType(int type) { 4398 } 4399 4400 public void setKeepScreenOn(boolean screenOn) { 4401 } 4402 4403 public Canvas lockCanvas() { 4404 return null; 4405 } 4406 4407 public Canvas lockCanvas(Rect dirty) { 4408 return null; 4409 } 4410 4411 public void unlockCanvasAndPost(Canvas canvas) { 4412 } 4413 public Rect getSurfaceFrame() { 4414 return null; 4415 } 4416 }; 4417 4418 static RunQueue getRunQueue() { 4419 RunQueue rq = sRunQueues.get(); 4420 if (rq != null) { 4421 return rq; 4422 } 4423 rq = new RunQueue(); 4424 sRunQueues.set(rq); 4425 return rq; 4426 } 4427 4428 /** 4429 * @hide 4430 */ 4431 static final class RunQueue { 4432 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4433 4434 void post(Runnable action) { 4435 postDelayed(action, 0); 4436 } 4437 4438 void postDelayed(Runnable action, long delayMillis) { 4439 HandlerAction handlerAction = new HandlerAction(); 4440 handlerAction.action = action; 4441 handlerAction.delay = delayMillis; 4442 4443 synchronized (mActions) { 4444 mActions.add(handlerAction); 4445 } 4446 } 4447 4448 void removeCallbacks(Runnable action) { 4449 final HandlerAction handlerAction = new HandlerAction(); 4450 handlerAction.action = action; 4451 4452 synchronized (mActions) { 4453 final ArrayList<HandlerAction> actions = mActions; 4454 4455 while (actions.remove(handlerAction)) { 4456 // Keep going 4457 } 4458 } 4459 } 4460 4461 void executeActions(Handler handler) { 4462 synchronized (mActions) { 4463 final ArrayList<HandlerAction> actions = mActions; 4464 final int count = actions.size(); 4465 4466 for (int i = 0; i < count; i++) { 4467 final HandlerAction handlerAction = actions.get(i); 4468 handler.postDelayed(handlerAction.action, handlerAction.delay); 4469 } 4470 4471 actions.clear(); 4472 } 4473 } 4474 4475 private static class HandlerAction { 4476 Runnable action; 4477 long delay; 4478 4479 @Override 4480 public boolean equals(Object o) { 4481 if (this == o) return true; 4482 if (o == null || getClass() != o.getClass()) return false; 4483 4484 HandlerAction that = (HandlerAction) o; 4485 return !(action != null ? !action.equals(that.action) : that.action != null); 4486 4487 } 4488 4489 @Override 4490 public int hashCode() { 4491 int result = action != null ? action.hashCode() : 0; 4492 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4493 return result; 4494 } 4495 } 4496 } 4497 4498 /** 4499 * Class for managing the accessibility interaction connection 4500 * based on the global accessibility state. 4501 */ 4502 final class AccessibilityInteractionConnectionManager 4503 implements AccessibilityStateChangeListener { 4504 public void onAccessibilityStateChanged(boolean enabled) { 4505 if (enabled) { 4506 ensureConnection(); 4507 } else { 4508 ensureNoConnection(); 4509 } 4510 } 4511 4512 public void ensureConnection() { 4513 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4514 if (!registered) { 4515 mAttachInfo.mAccessibilityWindowId = 4516 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4517 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4518 } 4519 } 4520 4521 public void ensureNoConnection() { 4522 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4523 if (registered) { 4524 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4525 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4526 } 4527 } 4528 } 4529 4530 /** 4531 * This class is an interface this ViewAncestor provides to the 4532 * AccessibilityManagerService to the latter can interact with 4533 * the view hierarchy in this ViewAncestor. 4534 */ 4535 static final class AccessibilityInteractionConnection 4536 extends IAccessibilityInteractionConnection.Stub { 4537 private final WeakReference<ViewRootImpl> mViewRootImpl; 4538 4539 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 4540 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 4541 } 4542 4543 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 4544 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4545 int interrogatingPid, long interrogatingTid) { 4546 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4547 if (viewRootImpl != null && viewRootImpl.mView != null) { 4548 viewRootImpl.getAccessibilityInteractionController() 4549 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 4550 interactionId, callback, interrogatingPid, interrogatingTid); 4551 } 4552 } 4553 4554 public void performAccessibilityAction(long accessibilityNodeId, int action, 4555 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4556 int interogatingPid, long interrogatingTid) { 4557 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4558 if (viewRootImpl != null && viewRootImpl.mView != null) { 4559 viewRootImpl.getAccessibilityInteractionController() 4560 .performAccessibilityActionClientThread(accessibilityNodeId, action, 4561 interactionId, callback, interogatingPid, interrogatingTid); 4562 } 4563 } 4564 4565 public void findAccessibilityNodeInfoByViewId(int viewId, 4566 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4567 int interrogatingPid, long interrogatingTid) { 4568 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4569 if (viewRootImpl != null && viewRootImpl.mView != null) { 4570 viewRootImpl.getAccessibilityInteractionController() 4571 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4572 interrogatingPid, interrogatingTid); 4573 } 4574 } 4575 4576 public void findAccessibilityNodeInfosByText(String text, long accessibilityNodeId, 4577 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4578 int interrogatingPid, long interrogatingTid) { 4579 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4580 if (viewRootImpl != null && viewRootImpl.mView != null) { 4581 viewRootImpl.getAccessibilityInteractionController() 4582 .findAccessibilityNodeInfosByTextClientThread(text, accessibilityNodeId, 4583 interactionId, callback, interrogatingPid, interrogatingTid); 4584 } 4585 } 4586 } 4587 4588 /** 4589 * Class for managing accessibility interactions initiated from the system 4590 * and targeting the view hierarchy. A *ClientThread method is to be 4591 * called from the interaction connection this ViewAncestor gives the 4592 * system to talk to it and a corresponding *UiThread method that is executed 4593 * on the UI thread. 4594 */ 4595 final class AccessibilityInteractionController { 4596 private static final int POOL_SIZE = 5; 4597 4598 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4599 new ArrayList<AccessibilityNodeInfo>(); 4600 4601 // Reusable poolable arguments for interacting with the view hierarchy 4602 // to fit more arguments than Message and to avoid sharing objects between 4603 // two messages since several threads can send messages concurrently. 4604 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4605 new PoolableManager<SomeArgs>() { 4606 public SomeArgs newInstance() { 4607 return new SomeArgs(); 4608 } 4609 4610 public void onAcquired(SomeArgs info) { 4611 /* do nothing */ 4612 } 4613 4614 public void onReleased(SomeArgs info) { 4615 info.clear(); 4616 } 4617 }, POOL_SIZE) 4618 ); 4619 4620 public class SomeArgs implements Poolable<SomeArgs> { 4621 private SomeArgs mNext; 4622 private boolean mIsPooled; 4623 4624 public Object arg1; 4625 public Object arg2; 4626 public int argi1; 4627 public int argi2; 4628 public int argi3; 4629 4630 public SomeArgs getNextPoolable() { 4631 return mNext; 4632 } 4633 4634 public boolean isPooled() { 4635 return mIsPooled; 4636 } 4637 4638 public void setNextPoolable(SomeArgs args) { 4639 mNext = args; 4640 } 4641 4642 public void setPooled(boolean isPooled) { 4643 mIsPooled = isPooled; 4644 } 4645 4646 private void clear() { 4647 arg1 = null; 4648 arg2 = null; 4649 argi1 = 0; 4650 argi2 = 0; 4651 argi3 = 0; 4652 } 4653 } 4654 4655 public void findAccessibilityNodeInfoByAccessibilityIdClientThread( 4656 long accessibilityNodeId, int interactionId, 4657 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4658 long interrogatingTid) { 4659 Message message = Message.obtain(); 4660 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4661 SomeArgs args = mPool.acquire(); 4662 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4663 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4664 args.argi3 = interactionId; 4665 args.arg1 = callback; 4666 message.obj = args; 4667 // If the interrogation is performed by the same thread as the main UI 4668 // thread in this process, set the message as a static reference so 4669 // after this call completes the same thread but in the interrogating 4670 // client can handle the message to generate the result. 4671 if (interrogatingPid == Process.myPid() 4672 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4673 message.setTarget(ViewRootImpl.this); 4674 AccessibilityInteractionClient.getInstanceForThread( 4675 interrogatingTid).setSameThreadMessage(message); 4676 } else { 4677 sendMessage(message); 4678 } 4679 } 4680 4681 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4682 SomeArgs args = (SomeArgs) message.obj; 4683 final int accessibilityViewId = args.argi1; 4684 final int virtualDescendantId = args.argi2; 4685 final int interactionId = args.argi3; 4686 final IAccessibilityInteractionConnectionCallback callback = 4687 (IAccessibilityInteractionConnectionCallback) args.arg1; 4688 mPool.release(args); 4689 AccessibilityNodeInfo info = null; 4690 try { 4691 View target = findViewByAccessibilityId(accessibilityViewId); 4692 if (target != null && target.getVisibility() == View.VISIBLE) { 4693 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4694 if (provider != null) { 4695 info = provider.createAccessibilityNodeInfo(virtualDescendantId); 4696 } else if (virtualDescendantId == View.NO_ID) { 4697 info = target.createAccessibilityNodeInfo(); 4698 } 4699 } 4700 } finally { 4701 try { 4702 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4703 } catch (RemoteException re) { 4704 /* ignore - the other side will time out */ 4705 } 4706 } 4707 } 4708 4709 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4710 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4711 long interrogatingTid) { 4712 Message message = Message.obtain(); 4713 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4714 message.arg1 = viewId; 4715 message.arg2 = interactionId; 4716 message.obj = callback; 4717 // If the interrogation is performed by the same thread as the main UI 4718 // thread in this process, set the message as a static reference so 4719 // after this call completes the same thread but in the interrogating 4720 // client can handle the message to generate the result. 4721 if (interrogatingPid == Process.myPid() 4722 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4723 message.setTarget(ViewRootImpl.this); 4724 AccessibilityInteractionClient.getInstanceForThread( 4725 interrogatingTid).setSameThreadMessage(message); 4726 } else { 4727 sendMessage(message); 4728 } 4729 } 4730 4731 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4732 final int viewId = message.arg1; 4733 final int interactionId = message.arg2; 4734 final IAccessibilityInteractionConnectionCallback callback = 4735 (IAccessibilityInteractionConnectionCallback) message.obj; 4736 4737 AccessibilityNodeInfo info = null; 4738 try { 4739 View root = ViewRootImpl.this.mView; 4740 View target = root.findViewById(viewId); 4741 if (target != null && target.getVisibility() == View.VISIBLE) { 4742 info = target.createAccessibilityNodeInfo(); 4743 } 4744 } finally { 4745 try { 4746 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4747 } catch (RemoteException re) { 4748 /* ignore - the other side will time out */ 4749 } 4750 } 4751 } 4752 4753 public void findAccessibilityNodeInfosByTextClientThread(String text, 4754 long accessibilityNodeId, int interactionId, 4755 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4756 long interrogatingTid) { 4757 Message message = Message.obtain(); 4758 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT; 4759 SomeArgs args = mPool.acquire(); 4760 args.arg1 = text; 4761 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4762 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4763 args.argi3 = interactionId; 4764 args.arg2 = callback; 4765 message.obj = args; 4766 // If the interrogation is performed by the same thread as the main UI 4767 // thread in this process, set the message as a static reference so 4768 // after this call completes the same thread but in the interrogating 4769 // client can handle the message to generate the result. 4770 if (interrogatingPid == Process.myPid() 4771 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4772 message.setTarget(ViewRootImpl.this); 4773 AccessibilityInteractionClient.getInstanceForThread( 4774 interrogatingTid).setSameThreadMessage(message); 4775 } else { 4776 sendMessage(message); 4777 } 4778 } 4779 4780 public void findAccessibilityNodeInfosByTextUiThread(Message message) { 4781 SomeArgs args = (SomeArgs) message.obj; 4782 final String text = (String) args.arg1; 4783 final int accessibilityViewId = args.argi1; 4784 final int virtualDescendantId = args.argi2; 4785 final int interactionId = args.argi3; 4786 final IAccessibilityInteractionConnectionCallback callback = 4787 (IAccessibilityInteractionConnectionCallback) args.arg2; 4788 mPool.release(args); 4789 List<AccessibilityNodeInfo> infos = null; 4790 try { 4791 View target = null; 4792 if (accessibilityViewId != View.NO_ID) { 4793 target = findViewByAccessibilityId(accessibilityViewId); 4794 } else { 4795 target = ViewRootImpl.this.mView; 4796 } 4797 if (target != null && target.getVisibility() == View.VISIBLE) { 4798 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4799 if (provider != null) { 4800 infos = provider.findAccessibilityNodeInfosByText(text, 4801 virtualDescendantId); 4802 } else if (virtualDescendantId == View.NO_ID) { 4803 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4804 foundViews.clear(); 4805 target.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4806 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION 4807 | View.FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS); 4808 if (!foundViews.isEmpty()) { 4809 infos = mTempAccessibilityNodeInfoList; 4810 infos.clear(); 4811 final int viewCount = foundViews.size(); 4812 for (int i = 0; i < viewCount; i++) { 4813 View foundView = foundViews.get(i); 4814 if (foundView.getVisibility() == View.VISIBLE) { 4815 provider = foundView.getAccessibilityNodeProvider(); 4816 if (provider != null) { 4817 List<AccessibilityNodeInfo> infosFromProvider = 4818 provider.findAccessibilityNodeInfosByText(text, 4819 virtualDescendantId); 4820 if (infosFromProvider != null) { 4821 infos.addAll(infosFromProvider); 4822 } 4823 } else { 4824 infos.add(foundView.createAccessibilityNodeInfo()); 4825 } 4826 } 4827 } 4828 } 4829 } 4830 } 4831 } finally { 4832 try { 4833 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4834 } catch (RemoteException re) { 4835 /* ignore - the other side will time out */ 4836 } 4837 } 4838 } 4839 4840 public void performAccessibilityActionClientThread(long accessibilityNodeId, int action, 4841 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4842 int interogatingPid, long interrogatingTid) { 4843 Message message = Message.obtain(); 4844 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4845 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4846 message.arg2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4847 SomeArgs args = mPool.acquire(); 4848 args.argi1 = action; 4849 args.argi2 = interactionId; 4850 args.arg1 = callback; 4851 message.obj = args; 4852 // If the interrogation is performed by the same thread as the main UI 4853 // thread in this process, set the message as a static reference so 4854 // after this call completes the same thread but in the interrogating 4855 // client can handle the message to generate the result. 4856 if (interogatingPid == Process.myPid() 4857 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4858 message.setTarget(ViewRootImpl.this); 4859 AccessibilityInteractionClient.getInstanceForThread( 4860 interrogatingTid).setSameThreadMessage(message); 4861 } else { 4862 sendMessage(message); 4863 } 4864 } 4865 4866 public void perfromAccessibilityActionUiThread(Message message) { 4867 final int accessibilityViewId = message.arg1; 4868 final int virtualDescendantId = message.arg2; 4869 SomeArgs args = (SomeArgs) message.obj; 4870 final int action = args.argi1; 4871 final int interactionId = args.argi2; 4872 final IAccessibilityInteractionConnectionCallback callback = 4873 (IAccessibilityInteractionConnectionCallback) args.arg1; 4874 mPool.release(args); 4875 boolean succeeded = false; 4876 try { 4877 View target = findViewByAccessibilityId(accessibilityViewId); 4878 if (target != null && target.getVisibility() == View.VISIBLE) { 4879 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4880 if (provider != null) { 4881 succeeded = provider.performAccessibilityAction(action, 4882 virtualDescendantId); 4883 } else if (virtualDescendantId == View.NO_ID) { 4884 switch (action) { 4885 case AccessibilityNodeInfo.ACTION_FOCUS: { 4886 if (!target.hasFocus()) { 4887 // Get out of touch mode since accessibility 4888 // wants to move focus around. 4889 ensureTouchMode(false); 4890 succeeded = target.requestFocus(); 4891 } 4892 } break; 4893 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4894 if (target.hasFocus()) { 4895 target.clearFocus(); 4896 succeeded = !target.isFocused(); 4897 } 4898 } break; 4899 case AccessibilityNodeInfo.ACTION_SELECT: { 4900 if (!target.isSelected()) { 4901 target.setSelected(true); 4902 succeeded = target.isSelected(); 4903 } 4904 } break; 4905 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4906 if (target.isSelected()) { 4907 target.setSelected(false); 4908 succeeded = !target.isSelected(); 4909 } 4910 } break; 4911 } 4912 } 4913 } 4914 } finally { 4915 try { 4916 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4917 } catch (RemoteException re) { 4918 /* ignore - the other side will time out */ 4919 } 4920 } 4921 } 4922 4923 private View findViewByAccessibilityId(int accessibilityId) { 4924 View root = ViewRootImpl.this.mView; 4925 if (root == null) { 4926 return null; 4927 } 4928 View foundView = root.findViewByAccessibilityId(accessibilityId); 4929 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 4930 return null; 4931 } 4932 return foundView; 4933 } 4934 } 4935 4936 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4937 public volatile boolean mIsPending; 4938 4939 public void run() { 4940 if (mView != null) { 4941 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4942 mIsPending = false; 4943 } 4944 } 4945 } 4946} 4947