ViewRootImpl.java revision 211370fd943cf26905001b38b8b1791851b26adc
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.media.AudioManager; 40import android.os.Binder; 41import android.os.Bundle; 42import android.os.Debug; 43import android.os.Handler; 44import android.os.LatencyTimer; 45import android.os.Looper; 46import android.os.Message; 47import android.os.ParcelFileDescriptor; 48import android.os.Process; 49import android.os.RemoteException; 50import android.os.SystemClock; 51import android.os.SystemProperties; 52import android.util.AndroidRuntimeException; 53import android.util.DisplayMetrics; 54import android.util.EventLog; 55import android.util.Log; 56import android.util.Pool; 57import android.util.Poolable; 58import android.util.PoolableManager; 59import android.util.Pools; 60import android.util.Slog; 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.lang.ref.WeakReference; 86import java.util.ArrayList; 87import java.util.List; 88 89/** 90 * The top of a view hierarchy, implementing the needed protocol between View 91 * and the WindowManager. This is for the most part an internal implementation 92 * detail of {@link WindowManagerImpl}. 93 * 94 * {@hide} 95 */ 96@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 97public final class ViewRootImpl extends Handler implements ViewParent, 98 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks, 99 Choreographer.OnDrawListener { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean DEBUG_FPS = false; 113 114 /** 115 * Set this system property to true to force the view hierarchy to render 116 * at 60 Hz. This can be used to measure the potential framerate. 117 */ 118 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 119 120 private static final boolean MEASURE_LATENCY = false; 121 private static LatencyTimer lt; 122 123 /** 124 * Maximum time we allow the user to roll the trackball enough to generate 125 * a key event, before resetting the counters. 126 */ 127 static final int MAX_TRACKBALL_DELAY = 250; 128 129 static IWindowSession sWindowSession; 130 131 static final Object mStaticInit = new Object(); 132 static boolean mInitialized = false; 133 134 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 135 136 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 137 static boolean sFirstDrawComplete = false; 138 139 static final ArrayList<ComponentCallbacks> sConfigCallbacks 140 = new ArrayList<ComponentCallbacks>(); 141 142 private static boolean sUseRenderThread = false; 143 private static boolean sRenderThreadQueried = false; 144 private static final Object[] sRenderThreadQueryLock = new Object[0]; 145 146 long mLastTrackballTime = 0; 147 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 148 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 149 150 int mLastJoystickXDirection; 151 int mLastJoystickYDirection; 152 int mLastJoystickXKeyCode; 153 int mLastJoystickYKeyCode; 154 155 final int[] mTmpLocation = new int[2]; 156 157 final TypedValue mTmpValue = new TypedValue(); 158 159 final InputMethodCallback mInputMethodCallback; 160 final Thread mThread; 161 162 final WindowLeaked mLocation; 163 164 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 165 166 final W mWindow; 167 168 final int mTargetSdkVersion; 169 170 int mSeq; 171 172 View mView; 173 View mFocusedView; 174 View mRealFocusedView; // this is not set to null in touch mode 175 View mOldFocusedView; 176 int mViewVisibility; 177 boolean mAppVisible = true; 178 int mOrigWindowType = -1; 179 180 // Set to true if the owner of this window is in the stopped state, 181 // so the window should no longer be active. 182 boolean mStopped = false; 183 184 boolean mLastInCompatMode = false; 185 186 SurfaceHolder.Callback2 mSurfaceHolderCallback; 187 BaseSurfaceHolder mSurfaceHolder; 188 boolean mIsCreating; 189 boolean mDrawingAllowed; 190 191 final Region mTransparentRegion; 192 final Region mPreviousTransparentRegion; 193 194 int mWidth; 195 int mHeight; 196 Rect mDirty; 197 final Rect mCurrentDirty = new Rect(); 198 final Rect mPreviousDirty = new Rect(); 199 boolean mIsAnimating; 200 201 CompatibilityInfo.Translator mTranslator; 202 203 final View.AttachInfo mAttachInfo; 204 InputChannel mInputChannel; 205 InputQueue.Callback mInputQueueCallback; 206 InputQueue mInputQueue; 207 FallbackEventHandler mFallbackEventHandler; 208 Choreographer mChoreographer; 209 210 final Rect mTempRect; // used in the transaction to not thrash the heap. 211 final Rect mVisRect; // used to retrieve visible rect of focused view. 212 213 boolean mTraversalScheduled; 214 long mLastTraversalFinishedTimeNanos; 215 long mLastDrawFinishedTimeNanos; 216 boolean mWillDrawSoon; 217 boolean mLayoutRequested; 218 boolean mFirst; 219 boolean mReportNextDraw; 220 boolean mFullRedrawNeeded; 221 boolean mNewSurfaceNeeded; 222 boolean mHasHadWindowFocus; 223 boolean mLastWasImTarget; 224 225 // Pool of queued input events. 226 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 227 private QueuedInputEvent mQueuedInputEventPool; 228 private int mQueuedInputEventPoolSize; 229 230 // Input event queue. 231 QueuedInputEvent mFirstPendingInputEvent; 232 QueuedInputEvent mCurrentInputEvent; 233 boolean mProcessInputEventsScheduled; 234 235 boolean mWindowAttributesChanged = false; 236 int mWindowAttributesChangesFlag = 0; 237 238 // These can be accessed by any thread, must be protected with a lock. 239 // Surface can never be reassigned or cleared (use Surface.clear()). 240 private final Surface mSurface = new Surface(); 241 242 boolean mAdded; 243 boolean mAddedTouchMode; 244 245 CompatibilityInfoHolder mCompatibilityInfo; 246 247 /*package*/ int mAddNesting; 248 249 // These are accessed by multiple threads. 250 final Rect mWinFrame; // frame given by window manager. 251 252 final Rect mPendingVisibleInsets = new Rect(); 253 final Rect mPendingContentInsets = new Rect(); 254 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 255 = new ViewTreeObserver.InternalInsetsInfo(); 256 257 final Configuration mLastConfiguration = new Configuration(); 258 final Configuration mPendingConfiguration = new Configuration(); 259 260 class ResizedInfo { 261 Rect coveredInsets; 262 Rect visibleInsets; 263 Configuration newConfig; 264 } 265 266 boolean mScrollMayChange; 267 int mSoftInputMode; 268 View mLastScrolledFocus; 269 int mScrollY; 270 int mCurScrollY; 271 Scroller mScroller; 272 HardwareLayer mResizeBuffer; 273 long mResizeBufferStartTime; 274 int mResizeBufferDuration; 275 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 276 private ArrayList<LayoutTransition> mPendingTransitions; 277 278 final ViewConfiguration mViewConfiguration; 279 280 /* Drag/drop */ 281 ClipDescription mDragDescription; 282 View mCurrentDragView; 283 volatile Object mLocalDragState; 284 final PointF mDragPoint = new PointF(); 285 final PointF mLastTouchPoint = new PointF(); 286 287 private boolean mProfileRendering; 288 private Thread mRenderProfiler; 289 private volatile boolean mRenderProfilingEnabled; 290 291 // Variables to track frames per second, enabled via DEBUG_FPS flag 292 private long mFpsStartTime = -1; 293 private long mFpsPrevTime = -1; 294 private int mFpsNumFrames; 295 296 /** 297 * see {@link #playSoundEffect(int)} 298 */ 299 AudioManager mAudioManager; 300 301 final AccessibilityManager mAccessibilityManager; 302 303 AccessibilityInteractionController mAccessibilityInteractionController; 304 305 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 306 307 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 308 309 private final int mDensity; 310 311 /** 312 * Consistency verifier for debugging purposes. 313 */ 314 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 315 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 316 new InputEventConsistencyVerifier(this, 0) : null; 317 318 public static IWindowSession getWindowSession(Looper mainLooper) { 319 synchronized (mStaticInit) { 320 if (!mInitialized) { 321 try { 322 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 323 sWindowSession = Display.getWindowManager().openSession( 324 imm.getClient(), imm.getInputContext()); 325 mInitialized = true; 326 } catch (RemoteException e) { 327 } 328 } 329 return sWindowSession; 330 } 331 } 332 333 static final class SystemUiVisibilityInfo { 334 int seq; 335 int globalVisibility; 336 int localValue; 337 int localChanges; 338 } 339 340 public ViewRootImpl(Context context) { 341 super(); 342 343 if (MEASURE_LATENCY) { 344 if (lt == null) { 345 lt = new LatencyTimer(100, 1000); 346 } 347 } 348 349 // Initialize the statics when this class is first instantiated. This is 350 // done here instead of in the static block because Zygote does not 351 // allow the spawning of threads. 352 getWindowSession(context.getMainLooper()); 353 354 mThread = Thread.currentThread(); 355 mLocation = new WindowLeaked(null); 356 mLocation.fillInStackTrace(); 357 mWidth = -1; 358 mHeight = -1; 359 mDirty = new Rect(); 360 mTempRect = new Rect(); 361 mVisRect = new Rect(); 362 mWinFrame = new Rect(); 363 mWindow = new W(this); 364 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 365 mInputMethodCallback = new InputMethodCallback(this); 366 mViewVisibility = View.GONE; 367 mTransparentRegion = new Region(); 368 mPreviousTransparentRegion = new Region(); 369 mFirst = true; // true for the first time the view is added 370 mAdded = false; 371 mAccessibilityManager = AccessibilityManager.getInstance(context); 372 mAccessibilityInteractionConnectionManager = 373 new AccessibilityInteractionConnectionManager(); 374 mAccessibilityManager.addAccessibilityStateChangeListener( 375 mAccessibilityInteractionConnectionManager); 376 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 377 mViewConfiguration = ViewConfiguration.get(context); 378 mDensity = context.getResources().getDisplayMetrics().densityDpi; 379 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 380 mProfileRendering = Boolean.parseBoolean( 381 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 382 mChoreographer = Choreographer.getInstance(); 383 } 384 385 /** 386 * @return True if the application requests the use of a separate render thread, 387 * false otherwise 388 */ 389 private static boolean isRenderThreadRequested(Context context) { 390 synchronized (sRenderThreadQueryLock) { 391 if (!sRenderThreadQueried) { 392 final PackageManager packageManager = context.getPackageManager(); 393 final String packageName = context.getApplicationInfo().packageName; 394 try { 395 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 396 PackageManager.GET_META_DATA); 397 if (applicationInfo.metaData != null) { 398 sUseRenderThread = applicationInfo.metaData.getBoolean( 399 "android.graphics.renderThread", false); 400 } 401 } catch (PackageManager.NameNotFoundException e) { 402 } finally { 403 sRenderThreadQueried = true; 404 } 405 } 406 return sUseRenderThread; 407 } 408 } 409 410 public static void addFirstDrawHandler(Runnable callback) { 411 synchronized (sFirstDrawHandlers) { 412 if (!sFirstDrawComplete) { 413 sFirstDrawHandlers.add(callback); 414 } 415 } 416 } 417 418 public static void addConfigCallback(ComponentCallbacks callback) { 419 synchronized (sConfigCallbacks) { 420 sConfigCallbacks.add(callback); 421 } 422 } 423 424 // FIXME for perf testing only 425 private boolean mProfile = false; 426 427 /** 428 * Call this to profile the next traversal call. 429 * FIXME for perf testing only. Remove eventually 430 */ 431 public void profile() { 432 mProfile = true; 433 } 434 435 /** 436 * Indicates whether we are in touch mode. Calling this method triggers an IPC 437 * call and should be avoided whenever possible. 438 * 439 * @return True, if the device is in touch mode, false otherwise. 440 * 441 * @hide 442 */ 443 static boolean isInTouchMode() { 444 if (mInitialized) { 445 try { 446 return sWindowSession.getInTouchMode(); 447 } catch (RemoteException e) { 448 } 449 } 450 return false; 451 } 452 453 /** 454 * We have one child 455 */ 456 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 457 synchronized (this) { 458 if (mView == null) { 459 mChoreographer.addOnDrawListener(this); 460 461 mView = view; 462 mFallbackEventHandler.setView(view); 463 mWindowAttributes.copyFrom(attrs); 464 attrs = mWindowAttributes; 465 466 if (view instanceof RootViewSurfaceTaker) { 467 mSurfaceHolderCallback = 468 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 469 if (mSurfaceHolderCallback != null) { 470 mSurfaceHolder = new TakenSurfaceHolder(); 471 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 472 } 473 } 474 475 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 476 mTranslator = compatibilityInfo.getTranslator(); 477 478 // If the application owns the surface, don't enable hardware acceleration 479 if (mSurfaceHolder == null) { 480 enableHardwareAcceleration(mView.getContext(), attrs); 481 } 482 483 boolean restore = false; 484 if (mTranslator != null) { 485 mSurface.setCompatibilityTranslator(mTranslator); 486 restore = true; 487 attrs.backup(); 488 mTranslator.translateWindowLayout(attrs); 489 } 490 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 491 492 if (!compatibilityInfo.supportsScreen()) { 493 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 494 mLastInCompatMode = true; 495 } 496 497 mSoftInputMode = attrs.softInputMode; 498 mWindowAttributesChanged = true; 499 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 500 mAttachInfo.mRootView = view; 501 mAttachInfo.mScalingRequired = mTranslator != null; 502 mAttachInfo.mApplicationScale = 503 mTranslator == null ? 1.0f : mTranslator.applicationScale; 504 if (panelParentView != null) { 505 mAttachInfo.mPanelParentWindowToken 506 = panelParentView.getApplicationWindowToken(); 507 } 508 mAdded = true; 509 int res; /* = WindowManagerImpl.ADD_OKAY; */ 510 511 // Schedule the first layout -before- adding to the window 512 // manager, to make sure we do the relayout before receiving 513 // any other events from the system. 514 requestLayout(); 515 if ((mWindowAttributes.inputFeatures 516 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 517 mInputChannel = new InputChannel(); 518 } 519 try { 520 mOrigWindowType = mWindowAttributes.type; 521 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 522 getHostVisibility(), mAttachInfo.mContentInsets, 523 mInputChannel); 524 } catch (RemoteException e) { 525 mAdded = false; 526 mView = null; 527 mAttachInfo.mRootView = null; 528 mInputChannel = null; 529 mFallbackEventHandler.setView(null); 530 unscheduleTraversals(); 531 throw new RuntimeException("Adding window failed", e); 532 } finally { 533 if (restore) { 534 attrs.restore(); 535 } 536 } 537 538 if (mTranslator != null) { 539 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 540 } 541 mPendingContentInsets.set(mAttachInfo.mContentInsets); 542 mPendingVisibleInsets.set(0, 0, 0, 0); 543 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 544 if (res < WindowManagerImpl.ADD_OKAY) { 545 mView = null; 546 mAttachInfo.mRootView = null; 547 mAdded = false; 548 mFallbackEventHandler.setView(null); 549 unscheduleTraversals(); 550 switch (res) { 551 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 552 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 553 throw new WindowManagerImpl.BadTokenException( 554 "Unable to add window -- token " + attrs.token 555 + " is not valid; is your activity running?"); 556 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 557 throw new WindowManagerImpl.BadTokenException( 558 "Unable to add window -- token " + attrs.token 559 + " is not for an application"); 560 case WindowManagerImpl.ADD_APP_EXITING: 561 throw new WindowManagerImpl.BadTokenException( 562 "Unable to add window -- app for token " + attrs.token 563 + " is exiting"); 564 case WindowManagerImpl.ADD_DUPLICATE_ADD: 565 throw new WindowManagerImpl.BadTokenException( 566 "Unable to add window -- window " + mWindow 567 + " has already been added"); 568 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 569 // Silently ignore -- we would have just removed it 570 // right away, anyway. 571 return; 572 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 573 throw new WindowManagerImpl.BadTokenException( 574 "Unable to add window " + mWindow + 575 " -- another window of this type already exists"); 576 case WindowManagerImpl.ADD_PERMISSION_DENIED: 577 throw new WindowManagerImpl.BadTokenException( 578 "Unable to add window " + mWindow + 579 " -- permission denied for this window type"); 580 } 581 throw new RuntimeException( 582 "Unable to add window -- unknown error code " + res); 583 } 584 585 if (view instanceof RootViewSurfaceTaker) { 586 mInputQueueCallback = 587 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 588 } 589 if (mInputChannel != null) { 590 if (mInputQueueCallback != null) { 591 mInputQueue = new InputQueue(mInputChannel); 592 mInputQueueCallback.onInputQueueCreated(mInputQueue); 593 } else { 594 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 595 Looper.myLooper()); 596 } 597 } 598 599 view.assignParent(this); 600 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 601 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 602 603 if (mAccessibilityManager.isEnabled()) { 604 mAccessibilityInteractionConnectionManager.ensureConnection(); 605 } 606 } 607 } 608 } 609 610 void destroyHardwareResources() { 611 if (mAttachInfo.mHardwareRenderer != null) { 612 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 613 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 614 } 615 mAttachInfo.mHardwareRenderer.destroy(false); 616 } 617 } 618 619 void terminateHardwareResources() { 620 if (mAttachInfo.mHardwareRenderer != null) { 621 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 622 mAttachInfo.mHardwareRenderer.destroy(false); 623 } 624 } 625 626 void destroyHardwareLayers() { 627 if (mThread != Thread.currentThread()) { 628 if (mAttachInfo.mHardwareRenderer != null && 629 mAttachInfo.mHardwareRenderer.isEnabled()) { 630 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 631 } 632 } else { 633 if (mAttachInfo.mHardwareRenderer != null && 634 mAttachInfo.mHardwareRenderer.isEnabled()) { 635 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 636 } 637 } 638 } 639 640 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 641 mAttachInfo.mHardwareAccelerated = false; 642 mAttachInfo.mHardwareAccelerationRequested = false; 643 644 // Don't enable hardware acceleration when the application is in compatibility mode 645 if (mTranslator != null) return; 646 647 // Try to enable hardware acceleration if requested 648 final boolean hardwareAccelerated = 649 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 650 651 if (hardwareAccelerated) { 652 if (!HardwareRenderer.isAvailable()) { 653 return; 654 } 655 656 // Persistent processes (including the system) should not do 657 // accelerated rendering on low-end devices. In that case, 658 // sRendererDisabled will be set. In addition, the system process 659 // itself should never do accelerated rendering. In that case, both 660 // sRendererDisabled and sSystemRendererDisabled are set. When 661 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 662 // can be used by code on the system process to escape that and enable 663 // HW accelerated drawing. (This is basically for the lock screen.) 664 665 final boolean fakeHwAccelerated = (attrs.privateFlags & 666 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 667 final boolean forceHwAccelerated = (attrs.privateFlags & 668 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 669 670 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 671 && forceHwAccelerated)) { 672 // Don't enable hardware acceleration when we're not on the main thread 673 if (!HardwareRenderer.sSystemRendererDisabled && 674 Looper.getMainLooper() != Looper.myLooper()) { 675 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 676 + "acceleration outside of the main thread, aborting"); 677 return; 678 } 679 680 boolean renderThread = isRenderThreadRequested(context); 681 if (renderThread) { 682 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 683 } 684 685 if (mAttachInfo.mHardwareRenderer != null) { 686 mAttachInfo.mHardwareRenderer.destroy(true); 687 } 688 689 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 690 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 691 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 692 = mAttachInfo.mHardwareRenderer != null; 693 694 } else if (fakeHwAccelerated) { 695 // The window had wanted to use hardware acceleration, but this 696 // is not allowed in its process. By setting this flag, it can 697 // still render as if it was accelerated. This is basically for 698 // the preview windows the window manager shows for launching 699 // applications, so they will look more like the app being launched. 700 mAttachInfo.mHardwareAccelerationRequested = true; 701 } 702 } 703 } 704 705 public View getView() { 706 return mView; 707 } 708 709 final WindowLeaked getLocation() { 710 return mLocation; 711 } 712 713 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 714 synchronized (this) { 715 int oldSoftInputMode = mWindowAttributes.softInputMode; 716 // preserve compatible window flag if exists. 717 int compatibleWindowFlag = 718 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 719 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 720 mWindowAttributes.flags |= compatibleWindowFlag; 721 722 if (newView) { 723 mSoftInputMode = attrs.softInputMode; 724 requestLayout(); 725 } 726 // Don't lose the mode we last auto-computed. 727 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 728 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 729 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 730 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 731 | (oldSoftInputMode 732 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 733 } 734 mWindowAttributesChanged = true; 735 scheduleTraversals(); 736 } 737 } 738 739 void handleAppVisibility(boolean visible) { 740 if (mAppVisible != visible) { 741 mAppVisible = visible; 742 scheduleTraversals(); 743 } 744 } 745 746 void handleGetNewSurface() { 747 mNewSurfaceNeeded = true; 748 mFullRedrawNeeded = true; 749 scheduleTraversals(); 750 } 751 752 /** 753 * {@inheritDoc} 754 */ 755 public void requestLayout() { 756 checkThread(); 757 mLayoutRequested = true; 758 scheduleTraversals(); 759 } 760 761 /** 762 * {@inheritDoc} 763 */ 764 public boolean isLayoutRequested() { 765 return mLayoutRequested; 766 } 767 768 public void invalidateChild(View child, Rect dirty) { 769 checkThread(); 770 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 771 if (dirty == null) { 772 // Fast invalidation for GL-enabled applications; GL must redraw everything 773 invalidate(); 774 return; 775 } 776 if (mCurScrollY != 0 || mTranslator != null) { 777 mTempRect.set(dirty); 778 dirty = mTempRect; 779 if (mCurScrollY != 0) { 780 dirty.offset(0, -mCurScrollY); 781 } 782 if (mTranslator != null) { 783 mTranslator.translateRectInAppWindowToScreen(dirty); 784 } 785 if (mAttachInfo.mScalingRequired) { 786 dirty.inset(-1, -1); 787 } 788 } 789 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 790 mAttachInfo.mSetIgnoreDirtyState = true; 791 mAttachInfo.mIgnoreDirtyState = true; 792 } 793 mDirty.union(dirty); 794 if (!mWillDrawSoon) { 795 scheduleTraversals(); 796 } 797 } 798 799 void invalidate() { 800 mDirty.set(0, 0, mWidth, mHeight); 801 scheduleTraversals(); 802 } 803 804 void setStopped(boolean stopped) { 805 if (mStopped != stopped) { 806 mStopped = stopped; 807 if (!stopped) { 808 scheduleTraversals(); 809 } 810 } 811 } 812 813 public ViewParent getParent() { 814 return null; 815 } 816 817 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 818 invalidateChild(null, dirty); 819 return null; 820 } 821 822 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 823 if (child != mView) { 824 throw new RuntimeException("child is not mine, honest!"); 825 } 826 // Note: don't apply scroll offset, because we want to know its 827 // visibility in the virtual canvas being given to the view hierarchy. 828 return r.intersect(0, 0, mWidth, mHeight); 829 } 830 831 public void bringChildToFront(View child) { 832 } 833 834 public void scheduleTraversals() { 835 if (!mTraversalScheduled) { 836 mTraversalScheduled = true; 837 mChoreographer.scheduleDraw(); 838 } 839 } 840 841 public void unscheduleTraversals() { 842 mTraversalScheduled = false; 843 } 844 845 @Override 846 public void onDraw() { 847 if (mTraversalScheduled) { 848 mTraversalScheduled = false; 849 doTraversal(); 850 } 851 } 852 853 int getHostVisibility() { 854 return mAppVisible ? mView.getVisibility() : View.GONE; 855 } 856 857 void disposeResizeBuffer() { 858 if (mResizeBuffer != null) { 859 mResizeBuffer.destroy(); 860 mResizeBuffer = null; 861 } 862 } 863 864 /** 865 * Add LayoutTransition to the list of transitions to be started in the next traversal. 866 * This list will be cleared after the transitions on the list are start()'ed. These 867 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 868 * happens during the layout phase of traversal, which we want to complete before any of the 869 * animations are started (because those animations may side-effect properties that layout 870 * depends upon, like the bounding rectangles of the affected views). So we add the transition 871 * to the list and it is started just prior to starting the drawing phase of traversal. 872 * 873 * @param transition The LayoutTransition to be started on the next traversal. 874 * 875 * @hide 876 */ 877 public void requestTransitionStart(LayoutTransition transition) { 878 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 879 if (mPendingTransitions == null) { 880 mPendingTransitions = new ArrayList<LayoutTransition>(); 881 } 882 mPendingTransitions.add(transition); 883 } 884 } 885 886 private void doTraversal() { 887 doProcessInputEvents(); 888 889 if (mProfile) { 890 Debug.startMethodTracing("ViewAncestor"); 891 } 892 893 final long traversalStartTime; 894 if (ViewDebug.DEBUG_LATENCY) { 895 traversalStartTime = System.nanoTime(); 896 if (mLastTraversalFinishedTimeNanos != 0) { 897 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 898 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 899 + "ms since the last traversals finished."); 900 } else { 901 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 902 } 903 } 904 905 performTraversals(); 906 907 if (ViewDebug.DEBUG_LATENCY) { 908 long now = System.nanoTime(); 909 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 910 + ((now - traversalStartTime) * 0.000001f) 911 + "ms."); 912 mLastTraversalFinishedTimeNanos = now; 913 } 914 915 if (mProfile) { 916 Debug.stopMethodTracing(); 917 mProfile = false; 918 } 919 } 920 921 private void performTraversals() { 922 // cache mView since it is used so much below... 923 final View host = mView; 924 925 if (DBG) { 926 System.out.println("======================================"); 927 System.out.println("performTraversals"); 928 host.debug(); 929 } 930 931 if (host == null || !mAdded) 932 return; 933 934 mWillDrawSoon = true; 935 boolean windowSizeMayChange = false; 936 boolean newSurface = false; 937 boolean surfaceChanged = false; 938 WindowManager.LayoutParams lp = mWindowAttributes; 939 940 int desiredWindowWidth; 941 int desiredWindowHeight; 942 int childWidthMeasureSpec; 943 int childHeightMeasureSpec; 944 945 final View.AttachInfo attachInfo = mAttachInfo; 946 947 final int viewVisibility = getHostVisibility(); 948 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 949 || mNewSurfaceNeeded; 950 951 WindowManager.LayoutParams params = null; 952 if (mWindowAttributesChanged) { 953 mWindowAttributesChanged = false; 954 surfaceChanged = true; 955 params = lp; 956 } 957 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 958 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 959 params = lp; 960 mFullRedrawNeeded = true; 961 mLayoutRequested = true; 962 if (mLastInCompatMode) { 963 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 964 mLastInCompatMode = false; 965 } else { 966 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 967 mLastInCompatMode = true; 968 } 969 } 970 971 mWindowAttributesChangesFlag = 0; 972 973 Rect frame = mWinFrame; 974 if (mFirst) { 975 mFullRedrawNeeded = true; 976 mLayoutRequested = true; 977 978 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 979 // NOTE -- system code, won't try to do compat mode. 980 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 981 Point size = new Point(); 982 disp.getRealSize(size); 983 desiredWindowWidth = size.x; 984 desiredWindowHeight = size.y; 985 } else { 986 DisplayMetrics packageMetrics = 987 mView.getContext().getResources().getDisplayMetrics(); 988 desiredWindowWidth = packageMetrics.widthPixels; 989 desiredWindowHeight = packageMetrics.heightPixels; 990 } 991 992 // For the very first time, tell the view hierarchy that it 993 // is attached to the window. Note that at this point the surface 994 // object is not initialized to its backing store, but soon it 995 // will be (assuming the window is visible). 996 attachInfo.mSurface = mSurface; 997 // We used to use the following condition to choose 32 bits drawing caches: 998 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 999 // However, windows are now always 32 bits by default, so choose 32 bits 1000 attachInfo.mUse32BitDrawingCache = true; 1001 attachInfo.mHasWindowFocus = false; 1002 attachInfo.mWindowVisibility = viewVisibility; 1003 attachInfo.mRecomputeGlobalAttributes = false; 1004 attachInfo.mKeepScreenOn = false; 1005 attachInfo.mSystemUiVisibility = 0; 1006 viewVisibilityChanged = false; 1007 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1008 host.dispatchAttachedToWindow(attachInfo, 0); 1009 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1010 1011 host.fitSystemWindows(mAttachInfo.mContentInsets); 1012 1013 } else { 1014 desiredWindowWidth = frame.width(); 1015 desiredWindowHeight = frame.height(); 1016 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1017 if (DEBUG_ORIENTATION) Log.v(TAG, 1018 "View " + host + " resized to: " + frame); 1019 mFullRedrawNeeded = true; 1020 mLayoutRequested = true; 1021 windowSizeMayChange = true; 1022 } 1023 } 1024 1025 if (viewVisibilityChanged) { 1026 attachInfo.mWindowVisibility = viewVisibility; 1027 host.dispatchWindowVisibilityChanged(viewVisibility); 1028 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1029 destroyHardwareResources(); 1030 } 1031 if (viewVisibility == View.GONE) { 1032 // After making a window gone, we will count it as being 1033 // shown for the first time the next time it gets focus. 1034 mHasHadWindowFocus = false; 1035 } 1036 } 1037 1038 boolean insetsChanged = false; 1039 1040 if (mLayoutRequested && !mStopped) { 1041 // Execute enqueued actions on every layout in case a view that was detached 1042 // enqueued an action after being detached 1043 getRunQueue().executeActions(attachInfo.mHandler); 1044 1045 final Resources res = mView.getContext().getResources(); 1046 1047 if (mFirst) { 1048 // make sure touch mode code executes by setting cached value 1049 // to opposite of the added touch mode. 1050 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1051 ensureTouchModeLocally(mAddedTouchMode); 1052 } else { 1053 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1054 insetsChanged = true; 1055 } 1056 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1057 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1058 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1059 + mAttachInfo.mVisibleInsets); 1060 } 1061 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1062 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1063 windowSizeMayChange = true; 1064 1065 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1066 // NOTE -- system code, won't try to do compat mode. 1067 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1068 Point size = new Point(); 1069 disp.getRealSize(size); 1070 desiredWindowWidth = size.x; 1071 desiredWindowHeight = size.y; 1072 } else { 1073 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1074 desiredWindowWidth = packageMetrics.widthPixels; 1075 desiredWindowHeight = packageMetrics.heightPixels; 1076 } 1077 } 1078 } 1079 1080 // Ask host how big it wants to be 1081 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1082 "Measuring " + host + " in display " + desiredWindowWidth 1083 + "x" + desiredWindowHeight + "..."); 1084 1085 boolean goodMeasure = false; 1086 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1087 // On large screens, we don't want to allow dialogs to just 1088 // stretch to fill the entire width of the screen to display 1089 // one line of text. First try doing the layout at a smaller 1090 // size to see if it will fit. 1091 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1092 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1093 int baseSize = 0; 1094 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1095 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1096 } 1097 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1098 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1099 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1100 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1101 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1102 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1103 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1104 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1105 goodMeasure = true; 1106 } else { 1107 // Didn't fit in that size... try expanding a bit. 1108 baseSize = (baseSize+desiredWindowWidth)/2; 1109 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1110 + baseSize); 1111 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1112 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1113 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1114 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1115 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1116 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1117 goodMeasure = true; 1118 } 1119 } 1120 } 1121 } 1122 1123 if (!goodMeasure) { 1124 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1125 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1126 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1127 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1128 windowSizeMayChange = true; 1129 } 1130 } 1131 1132 if (DBG) { 1133 System.out.println("======================================"); 1134 System.out.println("performTraversals -- after measure"); 1135 host.debug(); 1136 } 1137 } 1138 1139 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1140 //Log.i(TAG, "Computing view hierarchy attributes!"); 1141 attachInfo.mRecomputeGlobalAttributes = false; 1142 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1143 int oldVis = attachInfo.mSystemUiVisibility; 1144 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1145 attachInfo.mKeepScreenOn = false; 1146 attachInfo.mSystemUiVisibility = 0; 1147 attachInfo.mHasSystemUiListeners = false; 1148 host.dispatchCollectViewAttributes(0); 1149 if (attachInfo.mKeepScreenOn != oldScreenOn 1150 || attachInfo.mSystemUiVisibility != oldVis 1151 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1152 params = lp; 1153 } 1154 } 1155 if (attachInfo.mForceReportNewAttributes) { 1156 attachInfo.mForceReportNewAttributes = false; 1157 params = lp; 1158 } 1159 1160 if (mFirst || attachInfo.mViewVisibilityChanged) { 1161 attachInfo.mViewVisibilityChanged = false; 1162 int resizeMode = mSoftInputMode & 1163 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1164 // If we are in auto resize mode, then we need to determine 1165 // what mode to use now. 1166 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1167 final int N = attachInfo.mScrollContainers.size(); 1168 for (int i=0; i<N; i++) { 1169 if (attachInfo.mScrollContainers.get(i).isShown()) { 1170 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1171 } 1172 } 1173 if (resizeMode == 0) { 1174 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1175 } 1176 if ((lp.softInputMode & 1177 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1178 lp.softInputMode = (lp.softInputMode & 1179 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1180 resizeMode; 1181 params = lp; 1182 } 1183 } 1184 } 1185 1186 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1187 if (!PixelFormat.formatHasAlpha(params.format)) { 1188 params.format = PixelFormat.TRANSLUCENT; 1189 } 1190 } 1191 1192 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1193 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1194 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1195 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1196 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1197 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1198 1199 final boolean computesInternalInsets = 1200 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1201 1202 boolean insetsPending = false; 1203 int relayoutResult = 0; 1204 1205 if (mFirst || windowShouldResize || insetsChanged || 1206 viewVisibilityChanged || params != null) { 1207 1208 if (viewVisibility == View.VISIBLE) { 1209 // If this window is giving internal insets to the window 1210 // manager, and it is being added or changing its visibility, 1211 // then we want to first give the window manager "fake" 1212 // insets to cause it to effectively ignore the content of 1213 // the window during layout. This avoids it briefly causing 1214 // other windows to resize/move based on the raw frame of the 1215 // window, waiting until we can finish laying out this window 1216 // and get back to the window manager with the ultimately 1217 // computed insets. 1218 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1219 } 1220 1221 if (mSurfaceHolder != null) { 1222 mSurfaceHolder.mSurfaceLock.lock(); 1223 mDrawingAllowed = true; 1224 } 1225 1226 boolean hwInitialized = false; 1227 boolean contentInsetsChanged = false; 1228 boolean visibleInsetsChanged; 1229 boolean hadSurface = mSurface.isValid(); 1230 1231 try { 1232 int fl = 0; 1233 if (params != null) { 1234 fl = params.flags; 1235 if (attachInfo.mKeepScreenOn) { 1236 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1237 } 1238 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1239 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1240 } 1241 if (DEBUG_LAYOUT) { 1242 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1243 host.getMeasuredHeight() + ", params=" + params); 1244 } 1245 1246 final int surfaceGenerationId = mSurface.getGenerationId(); 1247 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1248 1249 if (params != null) { 1250 params.flags = fl; 1251 } 1252 1253 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1254 + " content=" + mPendingContentInsets.toShortString() 1255 + " visible=" + mPendingVisibleInsets.toShortString() 1256 + " surface=" + mSurface); 1257 1258 if (mPendingConfiguration.seq != 0) { 1259 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1260 + mPendingConfiguration); 1261 updateConfiguration(mPendingConfiguration, !mFirst); 1262 mPendingConfiguration.seq = 0; 1263 } 1264 1265 contentInsetsChanged = !mPendingContentInsets.equals( 1266 mAttachInfo.mContentInsets); 1267 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1268 mAttachInfo.mVisibleInsets); 1269 if (contentInsetsChanged) { 1270 if (mWidth > 0 && mHeight > 0 && 1271 mSurface != null && mSurface.isValid() && 1272 !mAttachInfo.mTurnOffWindowResizeAnim && 1273 mAttachInfo.mHardwareRenderer != null && 1274 mAttachInfo.mHardwareRenderer.isEnabled() && 1275 mAttachInfo.mHardwareRenderer.validate() && 1276 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1277 1278 disposeResizeBuffer(); 1279 1280 boolean completed = false; 1281 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1282 HardwareCanvas layerCanvas = null; 1283 try { 1284 if (mResizeBuffer == null) { 1285 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1286 mWidth, mHeight, false); 1287 } else if (mResizeBuffer.getWidth() != mWidth || 1288 mResizeBuffer.getHeight() != mHeight) { 1289 mResizeBuffer.resize(mWidth, mHeight); 1290 } 1291 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1292 layerCanvas.setViewport(mWidth, mHeight); 1293 layerCanvas.onPreDraw(null); 1294 final int restoreCount = layerCanvas.save(); 1295 1296 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1297 1298 int yoff; 1299 final boolean scrolling = mScroller != null 1300 && mScroller.computeScrollOffset(); 1301 if (scrolling) { 1302 yoff = mScroller.getCurrY(); 1303 mScroller.abortAnimation(); 1304 } else { 1305 yoff = mScrollY; 1306 } 1307 1308 layerCanvas.translate(0, -yoff); 1309 if (mTranslator != null) { 1310 mTranslator.translateCanvas(layerCanvas); 1311 } 1312 1313 mView.draw(layerCanvas); 1314 1315 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1316 mResizeBufferDuration = mView.getResources().getInteger( 1317 com.android.internal.R.integer.config_mediumAnimTime); 1318 completed = true; 1319 1320 layerCanvas.restoreToCount(restoreCount); 1321 } catch (OutOfMemoryError e) { 1322 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1323 } finally { 1324 if (layerCanvas != null) { 1325 layerCanvas.onPostDraw(); 1326 } 1327 if (mResizeBuffer != null) { 1328 mResizeBuffer.end(hwRendererCanvas); 1329 if (!completed) { 1330 mResizeBuffer.destroy(); 1331 mResizeBuffer = null; 1332 } 1333 } 1334 } 1335 } 1336 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1337 host.fitSystemWindows(mAttachInfo.mContentInsets); 1338 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1339 + mAttachInfo.mContentInsets); 1340 } 1341 if (visibleInsetsChanged) { 1342 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1343 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1344 + mAttachInfo.mVisibleInsets); 1345 } 1346 1347 if (!hadSurface) { 1348 if (mSurface.isValid()) { 1349 // If we are creating a new surface, then we need to 1350 // completely redraw it. Also, when we get to the 1351 // point of drawing it we will hold off and schedule 1352 // a new traversal instead. This is so we can tell the 1353 // window manager about all of the windows being displayed 1354 // before actually drawing them, so it can display then 1355 // all at once. 1356 newSurface = true; 1357 mFullRedrawNeeded = true; 1358 mPreviousTransparentRegion.setEmpty(); 1359 1360 if (mAttachInfo.mHardwareRenderer != null) { 1361 try { 1362 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1363 } catch (Surface.OutOfResourcesException e) { 1364 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1365 try { 1366 if (!sWindowSession.outOfMemory(mWindow)) { 1367 Slog.w(TAG, "No processes killed for memory; killing self"); 1368 Process.killProcess(Process.myPid()); 1369 } 1370 } catch (RemoteException ex) { 1371 } 1372 mLayoutRequested = true; // ask wm for a new surface next time. 1373 return; 1374 } 1375 } 1376 } 1377 } else if (!mSurface.isValid()) { 1378 // If the surface has been removed, then reset the scroll 1379 // positions. 1380 mLastScrolledFocus = null; 1381 mScrollY = mCurScrollY = 0; 1382 if (mScroller != null) { 1383 mScroller.abortAnimation(); 1384 } 1385 disposeResizeBuffer(); 1386 // Our surface is gone 1387 if (mAttachInfo.mHardwareRenderer != null && 1388 mAttachInfo.mHardwareRenderer.isEnabled()) { 1389 mAttachInfo.mHardwareRenderer.destroy(true); 1390 } 1391 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1392 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1393 mFullRedrawNeeded = true; 1394 try { 1395 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1396 } catch (Surface.OutOfResourcesException e) { 1397 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1398 try { 1399 if (!sWindowSession.outOfMemory(mWindow)) { 1400 Slog.w(TAG, "No processes killed for memory; killing self"); 1401 Process.killProcess(Process.myPid()); 1402 } 1403 } catch (RemoteException ex) { 1404 } 1405 mLayoutRequested = true; // ask wm for a new surface next time. 1406 return; 1407 } 1408 } 1409 } catch (RemoteException e) { 1410 } 1411 1412 if (DEBUG_ORIENTATION) Log.v( 1413 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1414 1415 attachInfo.mWindowLeft = frame.left; 1416 attachInfo.mWindowTop = frame.top; 1417 1418 // !!FIXME!! This next section handles the case where we did not get the 1419 // window size we asked for. We should avoid this by getting a maximum size from 1420 // the window session beforehand. 1421 mWidth = frame.width(); 1422 mHeight = frame.height(); 1423 1424 if (mSurfaceHolder != null) { 1425 // The app owns the surface; tell it about what is going on. 1426 if (mSurface.isValid()) { 1427 // XXX .copyFrom() doesn't work! 1428 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1429 mSurfaceHolder.mSurface = mSurface; 1430 } 1431 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1432 mSurfaceHolder.mSurfaceLock.unlock(); 1433 if (mSurface.isValid()) { 1434 if (!hadSurface) { 1435 mSurfaceHolder.ungetCallbacks(); 1436 1437 mIsCreating = true; 1438 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1439 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1440 if (callbacks != null) { 1441 for (SurfaceHolder.Callback c : callbacks) { 1442 c.surfaceCreated(mSurfaceHolder); 1443 } 1444 } 1445 surfaceChanged = true; 1446 } 1447 if (surfaceChanged) { 1448 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1449 lp.format, mWidth, mHeight); 1450 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1451 if (callbacks != null) { 1452 for (SurfaceHolder.Callback c : callbacks) { 1453 c.surfaceChanged(mSurfaceHolder, lp.format, 1454 mWidth, mHeight); 1455 } 1456 } 1457 } 1458 mIsCreating = false; 1459 } else if (hadSurface) { 1460 mSurfaceHolder.ungetCallbacks(); 1461 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1462 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1463 if (callbacks != null) { 1464 for (SurfaceHolder.Callback c : callbacks) { 1465 c.surfaceDestroyed(mSurfaceHolder); 1466 } 1467 } 1468 mSurfaceHolder.mSurfaceLock.lock(); 1469 try { 1470 mSurfaceHolder.mSurface = new Surface(); 1471 } finally { 1472 mSurfaceHolder.mSurfaceLock.unlock(); 1473 } 1474 } 1475 } 1476 1477 if (mAttachInfo.mHardwareRenderer != null && 1478 mAttachInfo.mHardwareRenderer.isEnabled()) { 1479 if (hwInitialized || windowShouldResize || 1480 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1481 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1482 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1483 if (!hwInitialized) { 1484 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1485 } 1486 } 1487 } 1488 1489 if (!mStopped) { 1490 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1491 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1492 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1493 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1494 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1495 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1496 1497 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1498 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1499 + " mHeight=" + mHeight 1500 + " measuredHeight=" + host.getMeasuredHeight() 1501 + " coveredInsetsChanged=" + contentInsetsChanged); 1502 1503 // Ask host how big it wants to be 1504 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1505 1506 // Implementation of weights from WindowManager.LayoutParams 1507 // We just grow the dimensions as needed and re-measure if 1508 // needs be 1509 int width = host.getMeasuredWidth(); 1510 int height = host.getMeasuredHeight(); 1511 boolean measureAgain = false; 1512 1513 if (lp.horizontalWeight > 0.0f) { 1514 width += (int) ((mWidth - width) * lp.horizontalWeight); 1515 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1516 MeasureSpec.EXACTLY); 1517 measureAgain = true; 1518 } 1519 if (lp.verticalWeight > 0.0f) { 1520 height += (int) ((mHeight - height) * lp.verticalWeight); 1521 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1522 MeasureSpec.EXACTLY); 1523 measureAgain = true; 1524 } 1525 1526 if (measureAgain) { 1527 if (DEBUG_LAYOUT) Log.v(TAG, 1528 "And hey let's measure once more: width=" + width 1529 + " height=" + height); 1530 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1531 } 1532 1533 mLayoutRequested = true; 1534 } 1535 } 1536 } 1537 1538 final boolean didLayout = mLayoutRequested && !mStopped; 1539 boolean triggerGlobalLayoutListener = didLayout 1540 || attachInfo.mRecomputeGlobalAttributes; 1541 if (didLayout) { 1542 mLayoutRequested = false; 1543 mScrollMayChange = true; 1544 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1545 TAG, "Laying out " + host + " to (" + 1546 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1547 long startTime = 0L; 1548 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1549 startTime = SystemClock.elapsedRealtime(); 1550 } 1551 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1552 1553 if (false && ViewDebug.consistencyCheckEnabled) { 1554 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1555 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1556 + "please refer to the logs with the tag " 1557 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1558 } 1559 } 1560 1561 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1562 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1563 } 1564 1565 // By this point all views have been sized and positionned 1566 // We can compute the transparent area 1567 1568 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1569 // start out transparent 1570 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1571 host.getLocationInWindow(mTmpLocation); 1572 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1573 mTmpLocation[0] + host.mRight - host.mLeft, 1574 mTmpLocation[1] + host.mBottom - host.mTop); 1575 1576 host.gatherTransparentRegion(mTransparentRegion); 1577 if (mTranslator != null) { 1578 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1579 } 1580 1581 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1582 mPreviousTransparentRegion.set(mTransparentRegion); 1583 // reconfigure window manager 1584 try { 1585 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1586 } catch (RemoteException e) { 1587 } 1588 } 1589 } 1590 1591 if (DBG) { 1592 System.out.println("======================================"); 1593 System.out.println("performTraversals -- after setFrame"); 1594 host.debug(); 1595 } 1596 } 1597 1598 if (triggerGlobalLayoutListener) { 1599 attachInfo.mRecomputeGlobalAttributes = false; 1600 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1601 1602 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1603 postSendWindowContentChangedCallback(); 1604 } 1605 } 1606 1607 if (computesInternalInsets) { 1608 // Clear the original insets. 1609 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1610 insets.reset(); 1611 1612 // Compute new insets in place. 1613 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1614 1615 // Tell the window manager. 1616 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1617 mLastGivenInsets.set(insets); 1618 1619 // Translate insets to screen coordinates if needed. 1620 final Rect contentInsets; 1621 final Rect visibleInsets; 1622 final Region touchableRegion; 1623 if (mTranslator != null) { 1624 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1625 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1626 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1627 } else { 1628 contentInsets = insets.contentInsets; 1629 visibleInsets = insets.visibleInsets; 1630 touchableRegion = insets.touchableRegion; 1631 } 1632 1633 try { 1634 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1635 contentInsets, visibleInsets, touchableRegion); 1636 } catch (RemoteException e) { 1637 } 1638 } 1639 } 1640 1641 if (mFirst) { 1642 // handle first focus request 1643 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1644 + mView.hasFocus()); 1645 if (mView != null) { 1646 if (!mView.hasFocus()) { 1647 mView.requestFocus(View.FOCUS_FORWARD); 1648 mFocusedView = mRealFocusedView = mView.findFocus(); 1649 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1650 + mFocusedView); 1651 } else { 1652 mRealFocusedView = mView.findFocus(); 1653 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1654 + mRealFocusedView); 1655 } 1656 } 1657 } 1658 1659 mFirst = false; 1660 mWillDrawSoon = false; 1661 mNewSurfaceNeeded = false; 1662 mViewVisibility = viewVisibility; 1663 1664 if (mAttachInfo.mHasWindowFocus) { 1665 final boolean imTarget = WindowManager.LayoutParams 1666 .mayUseInputMethod(mWindowAttributes.flags); 1667 if (imTarget != mLastWasImTarget) { 1668 mLastWasImTarget = imTarget; 1669 InputMethodManager imm = InputMethodManager.peekInstance(); 1670 if (imm != null && imTarget) { 1671 imm.startGettingWindowFocus(mView); 1672 imm.onWindowFocus(mView, mView.findFocus(), 1673 mWindowAttributes.softInputMode, 1674 !mHasHadWindowFocus, mWindowAttributes.flags); 1675 } 1676 } 1677 } 1678 1679 // Remember if we must report the next draw. 1680 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1681 mReportNextDraw = true; 1682 } 1683 1684 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1685 viewVisibility != View.VISIBLE; 1686 1687 if (!cancelDraw && !newSurface) { 1688 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1689 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1690 mPendingTransitions.get(i).startChangingAnimations(); 1691 } 1692 mPendingTransitions.clear(); 1693 } 1694 1695 performDraw(); 1696 } else { 1697 // End any pending transitions on this non-visible window 1698 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1699 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1700 mPendingTransitions.get(i).endChangingAnimations(); 1701 } 1702 mPendingTransitions.clear(); 1703 } 1704 1705 if (viewVisibility == View.VISIBLE) { 1706 // Try again 1707 scheduleTraversals(); 1708 } 1709 } 1710 } 1711 1712 public void requestTransparentRegion(View child) { 1713 // the test below should not fail unless someone is messing with us 1714 checkThread(); 1715 if (mView == child) { 1716 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1717 // Need to make sure we re-evaluate the window attributes next 1718 // time around, to ensure the window has the correct format. 1719 mWindowAttributesChanged = true; 1720 mWindowAttributesChangesFlag = 0; 1721 requestLayout(); 1722 } 1723 } 1724 1725 /** 1726 * Figures out the measure spec for the root view in a window based on it's 1727 * layout params. 1728 * 1729 * @param windowSize 1730 * The available width or height of the window 1731 * 1732 * @param rootDimension 1733 * The layout params for one dimension (width or height) of the 1734 * window. 1735 * 1736 * @return The measure spec to use to measure the root view. 1737 */ 1738 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1739 int measureSpec; 1740 switch (rootDimension) { 1741 1742 case ViewGroup.LayoutParams.MATCH_PARENT: 1743 // Window can't resize. Force root view to be windowSize. 1744 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1745 break; 1746 case ViewGroup.LayoutParams.WRAP_CONTENT: 1747 // Window can resize. Set max size for root view. 1748 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1749 break; 1750 default: 1751 // Window wants to be an exact size. Force root view to be that size. 1752 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1753 break; 1754 } 1755 return measureSpec; 1756 } 1757 1758 int mHardwareYOffset; 1759 int mResizeAlpha; 1760 final Paint mResizePaint = new Paint(); 1761 1762 public void onHardwarePreDraw(HardwareCanvas canvas) { 1763 canvas.translate(0, -mHardwareYOffset); 1764 } 1765 1766 public void onHardwarePostDraw(HardwareCanvas canvas) { 1767 if (mResizeBuffer != null) { 1768 mResizePaint.setAlpha(mResizeAlpha); 1769 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1770 } 1771 } 1772 1773 /** 1774 * @hide 1775 */ 1776 void outputDisplayList(View view) { 1777 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1778 DisplayList displayList = view.getDisplayList(); 1779 if (displayList != null) { 1780 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1781 } 1782 } 1783 } 1784 1785 /** 1786 * @see #PROPERTY_PROFILE_RENDERING 1787 */ 1788 private void profileRendering(boolean enabled) { 1789 if (mProfileRendering) { 1790 mRenderProfilingEnabled = enabled; 1791 if (mRenderProfiler == null) { 1792 mRenderProfiler = new Thread(new Runnable() { 1793 @Override 1794 public void run() { 1795 Log.d(TAG, "Starting profiling thread"); 1796 while (mRenderProfilingEnabled) { 1797 mAttachInfo.mHandler.post(new Runnable() { 1798 @Override 1799 public void run() { 1800 mDirty.set(0, 0, mWidth, mHeight); 1801 scheduleTraversals(); 1802 } 1803 }); 1804 try { 1805 // TODO: This should use vsync when we get an API 1806 Thread.sleep(15); 1807 } catch (InterruptedException e) { 1808 Log.d(TAG, "Exiting profiling thread"); 1809 } 1810 } 1811 } 1812 }, "Rendering Profiler"); 1813 mRenderProfiler.start(); 1814 } else { 1815 mRenderProfiler.interrupt(); 1816 mRenderProfiler = null; 1817 } 1818 } 1819 } 1820 1821 /** 1822 * Called from draw() when DEBUG_FPS is enabled 1823 */ 1824 private void trackFPS() { 1825 // Tracks frames per second drawn. First value in a series of draws may be bogus 1826 // because it down not account for the intervening idle time 1827 long nowTime = System.currentTimeMillis(); 1828 if (mFpsStartTime < 0) { 1829 mFpsStartTime = mFpsPrevTime = nowTime; 1830 mFpsNumFrames = 0; 1831 } else { 1832 ++mFpsNumFrames; 1833 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1834 long frameTime = nowTime - mFpsPrevTime; 1835 long totalTime = nowTime - mFpsStartTime; 1836 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1837 mFpsPrevTime = nowTime; 1838 if (totalTime > 1000) { 1839 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1840 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1841 mFpsStartTime = nowTime; 1842 mFpsNumFrames = 0; 1843 } 1844 } 1845 } 1846 1847 private void performDraw() { 1848 final long drawStartTime; 1849 if (ViewDebug.DEBUG_LATENCY) { 1850 drawStartTime = System.nanoTime(); 1851 if (mLastDrawFinishedTimeNanos != 0) { 1852 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 1853 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 1854 + "ms since the last draw finished."); 1855 } else { 1856 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 1857 } 1858 } 1859 1860 final boolean fullRedrawNeeded = mFullRedrawNeeded; 1861 mFullRedrawNeeded = false; 1862 draw(fullRedrawNeeded); 1863 1864 if (ViewDebug.DEBUG_LATENCY) { 1865 long now = System.nanoTime(); 1866 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 1867 + ((now - drawStartTime) * 0.000001f) 1868 + "ms."); 1869 mLastDrawFinishedTimeNanos = now; 1870 } 1871 1872 if (mReportNextDraw) { 1873 mReportNextDraw = false; 1874 1875 if (LOCAL_LOGV) { 1876 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1877 } 1878 if (mSurfaceHolder != null && mSurface.isValid()) { 1879 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1880 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1881 if (callbacks != null) { 1882 for (SurfaceHolder.Callback c : callbacks) { 1883 if (c instanceof SurfaceHolder.Callback2) { 1884 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1885 mSurfaceHolder); 1886 } 1887 } 1888 } 1889 } 1890 try { 1891 sWindowSession.finishDrawing(mWindow); 1892 } catch (RemoteException e) { 1893 } 1894 } 1895 } 1896 1897 private void draw(boolean fullRedrawNeeded) { 1898 Surface surface = mSurface; 1899 if (surface == null || !surface.isValid()) { 1900 return; 1901 } 1902 1903 if (DEBUG_FPS) { 1904 trackFPS(); 1905 } 1906 1907 if (!sFirstDrawComplete) { 1908 synchronized (sFirstDrawHandlers) { 1909 sFirstDrawComplete = true; 1910 final int count = sFirstDrawHandlers.size(); 1911 for (int i = 0; i< count; i++) { 1912 post(sFirstDrawHandlers.get(i)); 1913 } 1914 } 1915 } 1916 1917 scrollToRectOrFocus(null, false); 1918 1919 if (mAttachInfo.mViewScrollChanged) { 1920 mAttachInfo.mViewScrollChanged = false; 1921 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1922 } 1923 1924 int yoff; 1925 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1926 if (animating) { 1927 yoff = mScroller.getCurrY(); 1928 } else { 1929 yoff = mScrollY; 1930 } 1931 if (mCurScrollY != yoff) { 1932 mCurScrollY = yoff; 1933 fullRedrawNeeded = true; 1934 } 1935 1936 final float appScale = mAttachInfo.mApplicationScale; 1937 final boolean scalingRequired = mAttachInfo.mScalingRequired; 1938 1939 int resizeAlpha = 0; 1940 if (mResizeBuffer != null) { 1941 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1942 if (deltaTime < mResizeBufferDuration) { 1943 float amt = deltaTime/(float) mResizeBufferDuration; 1944 amt = mResizeInterpolator.getInterpolation(amt); 1945 animating = true; 1946 resizeAlpha = 255 - (int)(amt*255); 1947 } else { 1948 disposeResizeBuffer(); 1949 } 1950 } 1951 1952 final Rect dirty = mDirty; 1953 if (mSurfaceHolder != null) { 1954 // The app owns the surface, we won't draw. 1955 dirty.setEmpty(); 1956 if (animating) { 1957 if (mScroller != null) { 1958 mScroller.abortAnimation(); 1959 } 1960 disposeResizeBuffer(); 1961 } 1962 return; 1963 } 1964 1965 if (fullRedrawNeeded) { 1966 mAttachInfo.mIgnoreDirtyState = true; 1967 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1968 } 1969 1970 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1971 Log.v(TAG, "Draw " + mView + "/" 1972 + mWindowAttributes.getTitle() 1973 + ": dirty={" + dirty.left + "," + dirty.top 1974 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1975 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1976 appScale + ", width=" + mWidth + ", height=" + mHeight); 1977 } 1978 1979 if (!dirty.isEmpty() || mIsAnimating) { 1980 if (mAttachInfo.mHardwareRenderer != null 1981 && mAttachInfo.mHardwareRenderer.isEnabled()) { 1982 // Draw with hardware renderer. 1983 mIsAnimating = false; 1984 mHardwareYOffset = yoff; 1985 mResizeAlpha = resizeAlpha; 1986 1987 mCurrentDirty.set(dirty); 1988 mCurrentDirty.union(mPreviousDirty); 1989 mPreviousDirty.set(dirty); 1990 dirty.setEmpty(); 1991 1992 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, 1993 animating ? null : mCurrentDirty)) { 1994 mPreviousDirty.set(0, 0, mWidth, mHeight); 1995 } 1996 } else { 1997 // Draw with software renderer. 1998 Canvas canvas; 1999 try { 2000 int left = dirty.left; 2001 int top = dirty.top; 2002 int right = dirty.right; 2003 int bottom = dirty.bottom; 2004 2005 final long lockCanvasStartTime; 2006 if (ViewDebug.DEBUG_LATENCY) { 2007 lockCanvasStartTime = System.nanoTime(); 2008 } 2009 2010 canvas = mSurface.lockCanvas(dirty); 2011 2012 if (ViewDebug.DEBUG_LATENCY) { 2013 long now = System.nanoTime(); 2014 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2015 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2016 } 2017 2018 if (left != dirty.left || top != dirty.top || right != dirty.right || 2019 bottom != dirty.bottom) { 2020 mAttachInfo.mIgnoreDirtyState = true; 2021 } 2022 2023 // TODO: Do this in native 2024 canvas.setDensity(mDensity); 2025 } catch (Surface.OutOfResourcesException e) { 2026 Log.e(TAG, "OutOfResourcesException locking surface", e); 2027 try { 2028 if (!sWindowSession.outOfMemory(mWindow)) { 2029 Slog.w(TAG, "No processes killed for memory; killing self"); 2030 Process.killProcess(Process.myPid()); 2031 } 2032 } catch (RemoteException ex) { 2033 } 2034 mLayoutRequested = true; // ask wm for a new surface next time. 2035 return; 2036 } catch (IllegalArgumentException e) { 2037 Log.e(TAG, "IllegalArgumentException locking surface", e); 2038 // Don't assume this is due to out of memory, it could be 2039 // something else, and if it is something else then we could 2040 // kill stuff (or ourself) for no reason. 2041 mLayoutRequested = true; // ask wm for a new surface next time. 2042 return; 2043 } 2044 2045 try { 2046 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2047 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2048 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2049 //canvas.drawARGB(255, 255, 0, 0); 2050 } 2051 2052 long startTime = 0L; 2053 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2054 startTime = SystemClock.elapsedRealtime(); 2055 } 2056 2057 // If this bitmap's format includes an alpha channel, we 2058 // need to clear it before drawing so that the child will 2059 // properly re-composite its drawing on a transparent 2060 // background. This automatically respects the clip/dirty region 2061 // or 2062 // If we are applying an offset, we need to clear the area 2063 // where the offset doesn't appear to avoid having garbage 2064 // left in the blank areas. 2065 if (!canvas.isOpaque() || yoff != 0) { 2066 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2067 } 2068 2069 dirty.setEmpty(); 2070 mIsAnimating = false; 2071 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2072 mView.mPrivateFlags |= View.DRAWN; 2073 2074 if (DEBUG_DRAW) { 2075 Context cxt = mView.getContext(); 2076 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2077 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2078 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2079 } 2080 try { 2081 canvas.translate(0, -yoff); 2082 if (mTranslator != null) { 2083 mTranslator.translateCanvas(canvas); 2084 } 2085 canvas.setScreenDensity(scalingRequired 2086 ? DisplayMetrics.DENSITY_DEVICE : 0); 2087 mAttachInfo.mSetIgnoreDirtyState = false; 2088 2089 final long drawStartTime; 2090 if (ViewDebug.DEBUG_LATENCY) { 2091 drawStartTime = System.nanoTime(); 2092 } 2093 2094 mView.draw(canvas); 2095 2096 if (ViewDebug.DEBUG_LATENCY) { 2097 long now = System.nanoTime(); 2098 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2099 + ((now - drawStartTime) * 0.000001f) + "ms"); 2100 } 2101 } finally { 2102 if (!mAttachInfo.mSetIgnoreDirtyState) { 2103 // Only clear the flag if it was not set during the mView.draw() call 2104 mAttachInfo.mIgnoreDirtyState = false; 2105 } 2106 } 2107 2108 if (false && ViewDebug.consistencyCheckEnabled) { 2109 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2110 } 2111 2112 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2113 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2114 } 2115 } finally { 2116 final long unlockCanvasAndPostStartTime; 2117 if (ViewDebug.DEBUG_LATENCY) { 2118 unlockCanvasAndPostStartTime = System.nanoTime(); 2119 } 2120 2121 surface.unlockCanvasAndPost(canvas); 2122 2123 if (ViewDebug.DEBUG_LATENCY) { 2124 long now = System.nanoTime(); 2125 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2126 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2127 } 2128 2129 if (LOCAL_LOGV) { 2130 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2131 } 2132 } 2133 } 2134 } 2135 2136 if (animating) { 2137 mFullRedrawNeeded = true; 2138 scheduleTraversals(); 2139 } 2140 } 2141 2142 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2143 final View.AttachInfo attachInfo = mAttachInfo; 2144 final Rect ci = attachInfo.mContentInsets; 2145 final Rect vi = attachInfo.mVisibleInsets; 2146 int scrollY = 0; 2147 boolean handled = false; 2148 2149 if (vi.left > ci.left || vi.top > ci.top 2150 || vi.right > ci.right || vi.bottom > ci.bottom) { 2151 // We'll assume that we aren't going to change the scroll 2152 // offset, since we want to avoid that unless it is actually 2153 // going to make the focus visible... otherwise we scroll 2154 // all over the place. 2155 scrollY = mScrollY; 2156 // We can be called for two different situations: during a draw, 2157 // to update the scroll position if the focus has changed (in which 2158 // case 'rectangle' is null), or in response to a 2159 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2160 // is non-null and we just want to scroll to whatever that 2161 // rectangle is). 2162 View focus = mRealFocusedView; 2163 2164 // When in touch mode, focus points to the previously focused view, 2165 // which may have been removed from the view hierarchy. The following 2166 // line checks whether the view is still in our hierarchy. 2167 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2168 mRealFocusedView = null; 2169 return false; 2170 } 2171 2172 if (focus != mLastScrolledFocus) { 2173 // If the focus has changed, then ignore any requests to scroll 2174 // to a rectangle; first we want to make sure the entire focus 2175 // view is visible. 2176 rectangle = null; 2177 } 2178 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2179 + " rectangle=" + rectangle + " ci=" + ci 2180 + " vi=" + vi); 2181 if (focus == mLastScrolledFocus && !mScrollMayChange 2182 && rectangle == null) { 2183 // Optimization: if the focus hasn't changed since last 2184 // time, and no layout has happened, then just leave things 2185 // as they are. 2186 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2187 + mScrollY + " vi=" + vi.toShortString()); 2188 } else if (focus != null) { 2189 // We need to determine if the currently focused view is 2190 // within the visible part of the window and, if not, apply 2191 // a pan so it can be seen. 2192 mLastScrolledFocus = focus; 2193 mScrollMayChange = false; 2194 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2195 // Try to find the rectangle from the focus view. 2196 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2197 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2198 + mView.getWidth() + " h=" + mView.getHeight() 2199 + " ci=" + ci.toShortString() 2200 + " vi=" + vi.toShortString()); 2201 if (rectangle == null) { 2202 focus.getFocusedRect(mTempRect); 2203 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2204 + ": focusRect=" + mTempRect.toShortString()); 2205 if (mView instanceof ViewGroup) { 2206 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2207 focus, mTempRect); 2208 } 2209 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2210 "Focus in window: focusRect=" 2211 + mTempRect.toShortString() 2212 + " visRect=" + mVisRect.toShortString()); 2213 } else { 2214 mTempRect.set(rectangle); 2215 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2216 "Request scroll to rect: " 2217 + mTempRect.toShortString() 2218 + " visRect=" + mVisRect.toShortString()); 2219 } 2220 if (mTempRect.intersect(mVisRect)) { 2221 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2222 "Focus window visible rect: " 2223 + mTempRect.toShortString()); 2224 if (mTempRect.height() > 2225 (mView.getHeight()-vi.top-vi.bottom)) { 2226 // If the focus simply is not going to fit, then 2227 // best is probably just to leave things as-is. 2228 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2229 "Too tall; leaving scrollY=" + scrollY); 2230 } else if ((mTempRect.top-scrollY) < vi.top) { 2231 scrollY -= vi.top - (mTempRect.top-scrollY); 2232 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2233 "Top covered; scrollY=" + scrollY); 2234 } else if ((mTempRect.bottom-scrollY) 2235 > (mView.getHeight()-vi.bottom)) { 2236 scrollY += (mTempRect.bottom-scrollY) 2237 - (mView.getHeight()-vi.bottom); 2238 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2239 "Bottom covered; scrollY=" + scrollY); 2240 } 2241 handled = true; 2242 } 2243 } 2244 } 2245 } 2246 2247 if (scrollY != mScrollY) { 2248 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2249 + mScrollY + " , new=" + scrollY); 2250 if (!immediate && mResizeBuffer == null) { 2251 if (mScroller == null) { 2252 mScroller = new Scroller(mView.getContext()); 2253 } 2254 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2255 } else if (mScroller != null) { 2256 mScroller.abortAnimation(); 2257 } 2258 mScrollY = scrollY; 2259 } 2260 2261 return handled; 2262 } 2263 2264 public void requestChildFocus(View child, View focused) { 2265 checkThread(); 2266 2267 if (DEBUG_INPUT_RESIZE) { 2268 Log.v(TAG, "Request child focus: focus now " + focused); 2269 } 2270 2271 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2272 scheduleTraversals(); 2273 2274 mFocusedView = mRealFocusedView = focused; 2275 } 2276 2277 public void clearChildFocus(View child) { 2278 checkThread(); 2279 2280 if (DEBUG_INPUT_RESIZE) { 2281 Log.v(TAG, "Clearing child focus"); 2282 } 2283 2284 mOldFocusedView = mFocusedView; 2285 2286 // Invoke the listener only if there is no view to take focus 2287 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2288 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2289 } 2290 2291 mFocusedView = mRealFocusedView = null; 2292 } 2293 2294 public void focusableViewAvailable(View v) { 2295 checkThread(); 2296 2297 if (mView != null) { 2298 if (!mView.hasFocus()) { 2299 v.requestFocus(); 2300 } else { 2301 // the one case where will transfer focus away from the current one 2302 // is if the current view is a view group that prefers to give focus 2303 // to its children first AND the view is a descendant of it. 2304 mFocusedView = mView.findFocus(); 2305 boolean descendantsHaveDibsOnFocus = 2306 (mFocusedView instanceof ViewGroup) && 2307 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2308 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2309 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2310 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2311 v.requestFocus(); 2312 } 2313 } 2314 } 2315 } 2316 2317 public void recomputeViewAttributes(View child) { 2318 checkThread(); 2319 if (mView == child) { 2320 mAttachInfo.mRecomputeGlobalAttributes = true; 2321 if (!mWillDrawSoon) { 2322 scheduleTraversals(); 2323 } 2324 } 2325 } 2326 2327 void dispatchDetachedFromWindow() { 2328 if (mView != null && mView.mAttachInfo != null) { 2329 if (mAttachInfo.mHardwareRenderer != null && 2330 mAttachInfo.mHardwareRenderer.isEnabled()) { 2331 mAttachInfo.mHardwareRenderer.validate(); 2332 } 2333 mView.dispatchDetachedFromWindow(); 2334 } 2335 2336 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2337 mAccessibilityManager.removeAccessibilityStateChangeListener( 2338 mAccessibilityInteractionConnectionManager); 2339 removeSendWindowContentChangedCallback(); 2340 2341 mView = null; 2342 mAttachInfo.mRootView = null; 2343 mAttachInfo.mSurface = null; 2344 2345 destroyHardwareRenderer(); 2346 2347 mSurface.release(); 2348 2349 if (mInputQueueCallback != null && mInputQueue != null) { 2350 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2351 mInputQueueCallback = null; 2352 mInputQueue = null; 2353 } else if (mInputEventReceiver != null) { 2354 mInputEventReceiver.dispose(); 2355 mInputEventReceiver = null; 2356 } 2357 try { 2358 sWindowSession.remove(mWindow); 2359 } catch (RemoteException e) { 2360 } 2361 2362 // Dispose the input channel after removing the window so the Window Manager 2363 // doesn't interpret the input channel being closed as an abnormal termination. 2364 if (mInputChannel != null) { 2365 mInputChannel.dispose(); 2366 mInputChannel = null; 2367 } 2368 2369 mChoreographer.removeOnDrawListener(this); 2370 } 2371 2372 void updateConfiguration(Configuration config, boolean force) { 2373 if (DEBUG_CONFIGURATION) Log.v(TAG, 2374 "Applying new config to window " 2375 + mWindowAttributes.getTitle() 2376 + ": " + config); 2377 2378 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2379 if (ci != null) { 2380 config = new Configuration(config); 2381 ci.applyToConfiguration(config); 2382 } 2383 2384 synchronized (sConfigCallbacks) { 2385 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2386 sConfigCallbacks.get(i).onConfigurationChanged(config); 2387 } 2388 } 2389 if (mView != null) { 2390 // At this point the resources have been updated to 2391 // have the most recent config, whatever that is. Use 2392 // the on in them which may be newer. 2393 config = mView.getResources().getConfiguration(); 2394 if (force || mLastConfiguration.diff(config) != 0) { 2395 mLastConfiguration.setTo(config); 2396 mView.dispatchConfigurationChanged(config); 2397 } 2398 } 2399 } 2400 2401 /** 2402 * Return true if child is an ancestor of parent, (or equal to the parent). 2403 */ 2404 private static boolean isViewDescendantOf(View child, View parent) { 2405 if (child == parent) { 2406 return true; 2407 } 2408 2409 final ViewParent theParent = child.getParent(); 2410 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2411 } 2412 2413 private static void forceLayout(View view) { 2414 view.forceLayout(); 2415 if (view instanceof ViewGroup) { 2416 ViewGroup group = (ViewGroup) view; 2417 final int count = group.getChildCount(); 2418 for (int i = 0; i < count; i++) { 2419 forceLayout(group.getChildAt(i)); 2420 } 2421 } 2422 } 2423 2424 public final static int DIE = 1001; 2425 public final static int RESIZED = 1002; 2426 public final static int RESIZED_REPORT = 1003; 2427 public final static int WINDOW_FOCUS_CHANGED = 1004; 2428 public final static int DISPATCH_KEY = 1005; 2429 public final static int DISPATCH_APP_VISIBILITY = 1008; 2430 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2431 public final static int IME_FINISHED_EVENT = 1010; 2432 public final static int DISPATCH_KEY_FROM_IME = 1011; 2433 public final static int FINISH_INPUT_CONNECTION = 1012; 2434 public final static int CHECK_FOCUS = 1013; 2435 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2436 public final static int DISPATCH_DRAG_EVENT = 1015; 2437 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2438 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2439 public final static int DISPATCH_GENERIC_MOTION = 1018; 2440 public final static int UPDATE_CONFIGURATION = 1019; 2441 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2442 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2443 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2444 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT = 1023; 2445 public final static int DO_PROCESS_INPUT_EVENTS = 1024; 2446 2447 @Override 2448 public String getMessageName(Message message) { 2449 switch (message.what) { 2450 case DIE: 2451 return "DIE"; 2452 case RESIZED: 2453 return "RESIZED"; 2454 case RESIZED_REPORT: 2455 return "RESIZED_REPORT"; 2456 case WINDOW_FOCUS_CHANGED: 2457 return "WINDOW_FOCUS_CHANGED"; 2458 case DISPATCH_KEY: 2459 return "DISPATCH_KEY"; 2460 case DISPATCH_APP_VISIBILITY: 2461 return "DISPATCH_APP_VISIBILITY"; 2462 case DISPATCH_GET_NEW_SURFACE: 2463 return "DISPATCH_GET_NEW_SURFACE"; 2464 case IME_FINISHED_EVENT: 2465 return "IME_FINISHED_EVENT"; 2466 case DISPATCH_KEY_FROM_IME: 2467 return "DISPATCH_KEY_FROM_IME"; 2468 case FINISH_INPUT_CONNECTION: 2469 return "FINISH_INPUT_CONNECTION"; 2470 case CHECK_FOCUS: 2471 return "CHECK_FOCUS"; 2472 case CLOSE_SYSTEM_DIALOGS: 2473 return "CLOSE_SYSTEM_DIALOGS"; 2474 case DISPATCH_DRAG_EVENT: 2475 return "DISPATCH_DRAG_EVENT"; 2476 case DISPATCH_DRAG_LOCATION_EVENT: 2477 return "DISPATCH_DRAG_LOCATION_EVENT"; 2478 case DISPATCH_SYSTEM_UI_VISIBILITY: 2479 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2480 case DISPATCH_GENERIC_MOTION: 2481 return "DISPATCH_GENERIC_MOTION"; 2482 case UPDATE_CONFIGURATION: 2483 return "UPDATE_CONFIGURATION"; 2484 case DO_PERFORM_ACCESSIBILITY_ACTION: 2485 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2486 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2487 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2488 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2489 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2490 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: 2491 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT"; 2492 case DO_PROCESS_INPUT_EVENTS: 2493 return "DO_PROCESS_INPUT_EVENTS"; 2494 } 2495 return super.getMessageName(message); 2496 } 2497 2498 @Override 2499 public void handleMessage(Message msg) { 2500 switch (msg.what) { 2501 case View.AttachInfo.INVALIDATE_MSG: 2502 ((View) msg.obj).invalidate(); 2503 break; 2504 case View.AttachInfo.INVALIDATE_RECT_MSG: 2505 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2506 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2507 info.release(); 2508 break; 2509 case IME_FINISHED_EVENT: 2510 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2511 break; 2512 case DO_PROCESS_INPUT_EVENTS: 2513 mProcessInputEventsScheduled = false; 2514 doProcessInputEvents(); 2515 break; 2516 case DISPATCH_APP_VISIBILITY: 2517 handleAppVisibility(msg.arg1 != 0); 2518 break; 2519 case DISPATCH_GET_NEW_SURFACE: 2520 handleGetNewSurface(); 2521 break; 2522 case RESIZED: 2523 ResizedInfo ri = (ResizedInfo)msg.obj; 2524 2525 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2526 && mPendingContentInsets.equals(ri.coveredInsets) 2527 && mPendingVisibleInsets.equals(ri.visibleInsets) 2528 && ((ResizedInfo)msg.obj).newConfig == null) { 2529 break; 2530 } 2531 // fall through... 2532 case RESIZED_REPORT: 2533 if (mAdded) { 2534 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2535 if (config != null) { 2536 updateConfiguration(config, false); 2537 } 2538 mWinFrame.left = 0; 2539 mWinFrame.right = msg.arg1; 2540 mWinFrame.top = 0; 2541 mWinFrame.bottom = msg.arg2; 2542 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2543 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2544 if (msg.what == RESIZED_REPORT) { 2545 mReportNextDraw = true; 2546 } 2547 2548 if (mView != null) { 2549 forceLayout(mView); 2550 } 2551 requestLayout(); 2552 } 2553 break; 2554 case WINDOW_FOCUS_CHANGED: { 2555 if (mAdded) { 2556 boolean hasWindowFocus = msg.arg1 != 0; 2557 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2558 2559 profileRendering(hasWindowFocus); 2560 2561 if (hasWindowFocus) { 2562 boolean inTouchMode = msg.arg2 != 0; 2563 ensureTouchModeLocally(inTouchMode); 2564 2565 if (mAttachInfo.mHardwareRenderer != null && 2566 mSurface != null && mSurface.isValid()) { 2567 mFullRedrawNeeded = true; 2568 try { 2569 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2570 mHolder); 2571 } catch (Surface.OutOfResourcesException e) { 2572 Log.e(TAG, "OutOfResourcesException locking surface", e); 2573 try { 2574 if (!sWindowSession.outOfMemory(mWindow)) { 2575 Slog.w(TAG, "No processes killed for memory; killing self"); 2576 Process.killProcess(Process.myPid()); 2577 } 2578 } catch (RemoteException ex) { 2579 } 2580 // Retry in a bit. 2581 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2582 return; 2583 } 2584 } 2585 } 2586 2587 mLastWasImTarget = WindowManager.LayoutParams 2588 .mayUseInputMethod(mWindowAttributes.flags); 2589 2590 InputMethodManager imm = InputMethodManager.peekInstance(); 2591 if (mView != null) { 2592 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2593 imm.startGettingWindowFocus(mView); 2594 } 2595 mAttachInfo.mKeyDispatchState.reset(); 2596 mView.dispatchWindowFocusChanged(hasWindowFocus); 2597 } 2598 2599 // Note: must be done after the focus change callbacks, 2600 // so all of the view state is set up correctly. 2601 if (hasWindowFocus) { 2602 if (imm != null && mLastWasImTarget) { 2603 imm.onWindowFocus(mView, mView.findFocus(), 2604 mWindowAttributes.softInputMode, 2605 !mHasHadWindowFocus, mWindowAttributes.flags); 2606 } 2607 // Clear the forward bit. We can just do this directly, since 2608 // the window manager doesn't care about it. 2609 mWindowAttributes.softInputMode &= 2610 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2611 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2612 .softInputMode &= 2613 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2614 mHasHadWindowFocus = true; 2615 } 2616 2617 if (hasWindowFocus && mView != null) { 2618 sendAccessibilityEvents(); 2619 } 2620 } 2621 } break; 2622 case DIE: 2623 doDie(); 2624 break; 2625 case DISPATCH_KEY: { 2626 KeyEvent event = (KeyEvent)msg.obj; 2627 enqueueInputEvent(event, null, 0); 2628 } break; 2629 case DISPATCH_KEY_FROM_IME: { 2630 if (LOCAL_LOGV) Log.v( 2631 TAG, "Dispatching key " 2632 + msg.obj + " from IME to " + mView); 2633 KeyEvent event = (KeyEvent)msg.obj; 2634 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2635 // The IME is trying to say this event is from the 2636 // system! Bad bad bad! 2637 //noinspection UnusedAssignment 2638 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2639 } 2640 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME); 2641 } break; 2642 case FINISH_INPUT_CONNECTION: { 2643 InputMethodManager imm = InputMethodManager.peekInstance(); 2644 if (imm != null) { 2645 imm.reportFinishInputConnection((InputConnection)msg.obj); 2646 } 2647 } break; 2648 case CHECK_FOCUS: { 2649 InputMethodManager imm = InputMethodManager.peekInstance(); 2650 if (imm != null) { 2651 imm.checkFocus(); 2652 } 2653 } break; 2654 case CLOSE_SYSTEM_DIALOGS: { 2655 if (mView != null) { 2656 mView.onCloseSystemDialogs((String)msg.obj); 2657 } 2658 } break; 2659 case DISPATCH_DRAG_EVENT: 2660 case DISPATCH_DRAG_LOCATION_EVENT: { 2661 DragEvent event = (DragEvent)msg.obj; 2662 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2663 handleDragEvent(event); 2664 } break; 2665 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2666 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2667 } break; 2668 case UPDATE_CONFIGURATION: { 2669 Configuration config = (Configuration)msg.obj; 2670 if (config.isOtherSeqNewer(mLastConfiguration)) { 2671 config = mLastConfiguration; 2672 } 2673 updateConfiguration(config, false); 2674 } break; 2675 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2676 if (mView != null) { 2677 getAccessibilityInteractionController() 2678 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2679 } 2680 } break; 2681 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2682 if (mView != null) { 2683 getAccessibilityInteractionController() 2684 .perfromAccessibilityActionUiThread(msg); 2685 } 2686 } break; 2687 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2688 if (mView != null) { 2689 getAccessibilityInteractionController() 2690 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2691 } 2692 } break; 2693 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: { 2694 if (mView != null) { 2695 getAccessibilityInteractionController() 2696 .findAccessibilityNodeInfosByTextUiThread(msg); 2697 } 2698 } break; 2699 } 2700 } 2701 2702 /** 2703 * Something in the current window tells us we need to change the touch mode. For 2704 * example, we are not in touch mode, and the user touches the screen. 2705 * 2706 * If the touch mode has changed, tell the window manager, and handle it locally. 2707 * 2708 * @param inTouchMode Whether we want to be in touch mode. 2709 * @return True if the touch mode changed and focus changed was changed as a result 2710 */ 2711 boolean ensureTouchMode(boolean inTouchMode) { 2712 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2713 + "touch mode is " + mAttachInfo.mInTouchMode); 2714 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2715 2716 // tell the window manager 2717 try { 2718 sWindowSession.setInTouchMode(inTouchMode); 2719 } catch (RemoteException e) { 2720 throw new RuntimeException(e); 2721 } 2722 2723 // handle the change 2724 return ensureTouchModeLocally(inTouchMode); 2725 } 2726 2727 /** 2728 * Ensure that the touch mode for this window is set, and if it is changing, 2729 * take the appropriate action. 2730 * @param inTouchMode Whether we want to be in touch mode. 2731 * @return True if the touch mode changed and focus changed was changed as a result 2732 */ 2733 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2734 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2735 + "touch mode is " + mAttachInfo.mInTouchMode); 2736 2737 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2738 2739 mAttachInfo.mInTouchMode = inTouchMode; 2740 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2741 2742 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2743 } 2744 2745 private boolean enterTouchMode() { 2746 if (mView != null) { 2747 if (mView.hasFocus()) { 2748 // note: not relying on mFocusedView here because this could 2749 // be when the window is first being added, and mFocused isn't 2750 // set yet. 2751 final View focused = mView.findFocus(); 2752 if (focused != null && !focused.isFocusableInTouchMode()) { 2753 2754 final ViewGroup ancestorToTakeFocus = 2755 findAncestorToTakeFocusInTouchMode(focused); 2756 if (ancestorToTakeFocus != null) { 2757 // there is an ancestor that wants focus after its descendants that 2758 // is focusable in touch mode.. give it focus 2759 return ancestorToTakeFocus.requestFocus(); 2760 } else { 2761 // nothing appropriate to have focus in touch mode, clear it out 2762 mView.unFocus(); 2763 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2764 mFocusedView = null; 2765 mOldFocusedView = null; 2766 return true; 2767 } 2768 } 2769 } 2770 } 2771 return false; 2772 } 2773 2774 2775 /** 2776 * Find an ancestor of focused that wants focus after its descendants and is 2777 * focusable in touch mode. 2778 * @param focused The currently focused view. 2779 * @return An appropriate view, or null if no such view exists. 2780 */ 2781 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2782 ViewParent parent = focused.getParent(); 2783 while (parent instanceof ViewGroup) { 2784 final ViewGroup vgParent = (ViewGroup) parent; 2785 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2786 && vgParent.isFocusableInTouchMode()) { 2787 return vgParent; 2788 } 2789 if (vgParent.isRootNamespace()) { 2790 return null; 2791 } else { 2792 parent = vgParent.getParent(); 2793 } 2794 } 2795 return null; 2796 } 2797 2798 private boolean leaveTouchMode() { 2799 if (mView != null) { 2800 if (mView.hasFocus()) { 2801 // i learned the hard way to not trust mFocusedView :) 2802 mFocusedView = mView.findFocus(); 2803 if (!(mFocusedView instanceof ViewGroup)) { 2804 // some view has focus, let it keep it 2805 return false; 2806 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2807 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2808 // some view group has focus, and doesn't prefer its children 2809 // over itself for focus, so let them keep it. 2810 return false; 2811 } 2812 } 2813 2814 // find the best view to give focus to in this brave new non-touch-mode 2815 // world 2816 final View focused = focusSearch(null, View.FOCUS_DOWN); 2817 if (focused != null) { 2818 return focused.requestFocus(View.FOCUS_DOWN); 2819 } 2820 } 2821 return false; 2822 } 2823 2824 private void deliverInputEvent(QueuedInputEvent q) { 2825 if (ViewDebug.DEBUG_LATENCY) { 2826 q.mDeliverTimeNanos = System.nanoTime(); 2827 } 2828 2829 if (q.mEvent instanceof KeyEvent) { 2830 deliverKeyEvent(q); 2831 } else { 2832 final int source = q.mEvent.getSource(); 2833 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2834 deliverPointerEvent(q); 2835 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 2836 deliverTrackballEvent(q); 2837 } else { 2838 deliverGenericMotionEvent(q); 2839 } 2840 } 2841 } 2842 2843 private void deliverPointerEvent(QueuedInputEvent q) { 2844 final MotionEvent event = (MotionEvent)q.mEvent; 2845 final boolean isTouchEvent = event.isTouchEvent(); 2846 if (mInputEventConsistencyVerifier != null) { 2847 if (isTouchEvent) { 2848 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2849 } else { 2850 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2851 } 2852 } 2853 2854 // If there is no view, then the event will not be handled. 2855 if (mView == null || !mAdded) { 2856 finishInputEvent(q, false); 2857 return; 2858 } 2859 2860 // Translate the pointer event for compatibility, if needed. 2861 if (mTranslator != null) { 2862 mTranslator.translateEventInScreenToAppWindow(event); 2863 } 2864 2865 // Enter touch mode on down or scroll. 2866 final int action = event.getAction(); 2867 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2868 ensureTouchMode(true); 2869 } 2870 2871 // Offset the scroll position. 2872 if (mCurScrollY != 0) { 2873 event.offsetLocation(0, mCurScrollY); 2874 } 2875 if (MEASURE_LATENCY) { 2876 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2877 } 2878 2879 // Remember the touch position for possible drag-initiation. 2880 if (isTouchEvent) { 2881 mLastTouchPoint.x = event.getRawX(); 2882 mLastTouchPoint.y = event.getRawY(); 2883 } 2884 2885 // Dispatch touch to view hierarchy. 2886 boolean handled = mView.dispatchPointerEvent(event); 2887 if (MEASURE_LATENCY) { 2888 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2889 } 2890 if (handled) { 2891 finishInputEvent(q, true); 2892 return; 2893 } 2894 2895 // Pointer event was unhandled. 2896 finishInputEvent(q, false); 2897 } 2898 2899 private void deliverTrackballEvent(QueuedInputEvent q) { 2900 final MotionEvent event = (MotionEvent)q.mEvent; 2901 if (mInputEventConsistencyVerifier != null) { 2902 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2903 } 2904 2905 // If there is no view, then the event will not be handled. 2906 if (mView == null || !mAdded) { 2907 finishInputEvent(q, false); 2908 return; 2909 } 2910 2911 // Deliver the trackball event to the view. 2912 if (mView.dispatchTrackballEvent(event)) { 2913 // If we reach this, we delivered a trackball event to mView and 2914 // mView consumed it. Because we will not translate the trackball 2915 // event into a key event, touch mode will not exit, so we exit 2916 // touch mode here. 2917 ensureTouchMode(false); 2918 2919 finishInputEvent(q, true); 2920 mLastTrackballTime = Integer.MIN_VALUE; 2921 return; 2922 } 2923 2924 // Translate the trackball event into DPAD keys and try to deliver those. 2925 final TrackballAxis x = mTrackballAxisX; 2926 final TrackballAxis y = mTrackballAxisY; 2927 2928 long curTime = SystemClock.uptimeMillis(); 2929 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2930 // It has been too long since the last movement, 2931 // so restart at the beginning. 2932 x.reset(0); 2933 y.reset(0); 2934 mLastTrackballTime = curTime; 2935 } 2936 2937 final int action = event.getAction(); 2938 final int metaState = event.getMetaState(); 2939 switch (action) { 2940 case MotionEvent.ACTION_DOWN: 2941 x.reset(2); 2942 y.reset(2); 2943 dispatchKey(new KeyEvent(curTime, curTime, 2944 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2945 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2946 InputDevice.SOURCE_KEYBOARD)); 2947 break; 2948 case MotionEvent.ACTION_UP: 2949 x.reset(2); 2950 y.reset(2); 2951 dispatchKey(new KeyEvent(curTime, curTime, 2952 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2953 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2954 InputDevice.SOURCE_KEYBOARD)); 2955 break; 2956 } 2957 2958 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2959 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2960 + " move=" + event.getX() 2961 + " / Y=" + y.position + " step=" 2962 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2963 + " move=" + event.getY()); 2964 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2965 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2966 2967 // Generate DPAD events based on the trackball movement. 2968 // We pick the axis that has moved the most as the direction of 2969 // the DPAD. When we generate DPAD events for one axis, then the 2970 // other axis is reset -- we don't want to perform DPAD jumps due 2971 // to slight movements in the trackball when making major movements 2972 // along the other axis. 2973 int keycode = 0; 2974 int movement = 0; 2975 float accel = 1; 2976 if (xOff > yOff) { 2977 movement = x.generate((2/event.getXPrecision())); 2978 if (movement != 0) { 2979 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 2980 : KeyEvent.KEYCODE_DPAD_LEFT; 2981 accel = x.acceleration; 2982 y.reset(2); 2983 } 2984 } else if (yOff > 0) { 2985 movement = y.generate((2/event.getYPrecision())); 2986 if (movement != 0) { 2987 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 2988 : KeyEvent.KEYCODE_DPAD_UP; 2989 accel = y.acceleration; 2990 x.reset(2); 2991 } 2992 } 2993 2994 if (keycode != 0) { 2995 if (movement < 0) movement = -movement; 2996 int accelMovement = (int)(movement * accel); 2997 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 2998 + " accelMovement=" + accelMovement 2999 + " accel=" + accel); 3000 if (accelMovement > movement) { 3001 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3002 + keycode); 3003 movement--; 3004 int repeatCount = accelMovement - movement; 3005 dispatchKey(new KeyEvent(curTime, curTime, 3006 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3007 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3008 InputDevice.SOURCE_KEYBOARD)); 3009 } 3010 while (movement > 0) { 3011 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3012 + keycode); 3013 movement--; 3014 curTime = SystemClock.uptimeMillis(); 3015 dispatchKey(new KeyEvent(curTime, curTime, 3016 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3017 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3018 InputDevice.SOURCE_KEYBOARD)); 3019 dispatchKey(new KeyEvent(curTime, curTime, 3020 KeyEvent.ACTION_UP, keycode, 0, metaState, 3021 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3022 InputDevice.SOURCE_KEYBOARD)); 3023 } 3024 mLastTrackballTime = curTime; 3025 } 3026 3027 // Unfortunately we can't tell whether the application consumed the keys, so 3028 // we always consider the trackball event handled. 3029 finishInputEvent(q, true); 3030 } 3031 3032 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3033 final MotionEvent event = (MotionEvent)q.mEvent; 3034 if (mInputEventConsistencyVerifier != null) { 3035 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3036 } 3037 3038 final int source = event.getSource(); 3039 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3040 3041 // If there is no view, then the event will not be handled. 3042 if (mView == null || !mAdded) { 3043 if (isJoystick) { 3044 updateJoystickDirection(event, false); 3045 } 3046 finishInputEvent(q, false); 3047 return; 3048 } 3049 3050 // Deliver the event to the view. 3051 if (mView.dispatchGenericMotionEvent(event)) { 3052 if (isJoystick) { 3053 updateJoystickDirection(event, false); 3054 } 3055 finishInputEvent(q, true); 3056 return; 3057 } 3058 3059 if (isJoystick) { 3060 // Translate the joystick event into DPAD keys and try to deliver those. 3061 updateJoystickDirection(event, true); 3062 finishInputEvent(q, true); 3063 } else { 3064 finishInputEvent(q, false); 3065 } 3066 } 3067 3068 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3069 final long time = event.getEventTime(); 3070 final int metaState = event.getMetaState(); 3071 final int deviceId = event.getDeviceId(); 3072 final int source = event.getSource(); 3073 3074 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3075 if (xDirection == 0) { 3076 xDirection = joystickAxisValueToDirection(event.getX()); 3077 } 3078 3079 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3080 if (yDirection == 0) { 3081 yDirection = joystickAxisValueToDirection(event.getY()); 3082 } 3083 3084 if (xDirection != mLastJoystickXDirection) { 3085 if (mLastJoystickXKeyCode != 0) { 3086 dispatchKey(new KeyEvent(time, time, 3087 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3088 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3089 mLastJoystickXKeyCode = 0; 3090 } 3091 3092 mLastJoystickXDirection = xDirection; 3093 3094 if (xDirection != 0 && synthesizeNewKeys) { 3095 mLastJoystickXKeyCode = xDirection > 0 3096 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3097 dispatchKey(new KeyEvent(time, time, 3098 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3099 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3100 } 3101 } 3102 3103 if (yDirection != mLastJoystickYDirection) { 3104 if (mLastJoystickYKeyCode != 0) { 3105 dispatchKey(new KeyEvent(time, time, 3106 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3107 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3108 mLastJoystickYKeyCode = 0; 3109 } 3110 3111 mLastJoystickYDirection = yDirection; 3112 3113 if (yDirection != 0 && synthesizeNewKeys) { 3114 mLastJoystickYKeyCode = yDirection > 0 3115 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3116 dispatchKey(new KeyEvent(time, time, 3117 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3118 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3119 } 3120 } 3121 } 3122 3123 private static int joystickAxisValueToDirection(float value) { 3124 if (value >= 0.5f) { 3125 return 1; 3126 } else if (value <= -0.5f) { 3127 return -1; 3128 } else { 3129 return 0; 3130 } 3131 } 3132 3133 /** 3134 * Returns true if the key is used for keyboard navigation. 3135 * @param keyEvent The key event. 3136 * @return True if the key is used for keyboard navigation. 3137 */ 3138 private static boolean isNavigationKey(KeyEvent keyEvent) { 3139 switch (keyEvent.getKeyCode()) { 3140 case KeyEvent.KEYCODE_DPAD_LEFT: 3141 case KeyEvent.KEYCODE_DPAD_RIGHT: 3142 case KeyEvent.KEYCODE_DPAD_UP: 3143 case KeyEvent.KEYCODE_DPAD_DOWN: 3144 case KeyEvent.KEYCODE_DPAD_CENTER: 3145 case KeyEvent.KEYCODE_PAGE_UP: 3146 case KeyEvent.KEYCODE_PAGE_DOWN: 3147 case KeyEvent.KEYCODE_MOVE_HOME: 3148 case KeyEvent.KEYCODE_MOVE_END: 3149 case KeyEvent.KEYCODE_TAB: 3150 case KeyEvent.KEYCODE_SPACE: 3151 case KeyEvent.KEYCODE_ENTER: 3152 return true; 3153 } 3154 return false; 3155 } 3156 3157 /** 3158 * Returns true if the key is used for typing. 3159 * @param keyEvent The key event. 3160 * @return True if the key is used for typing. 3161 */ 3162 private static boolean isTypingKey(KeyEvent keyEvent) { 3163 return keyEvent.getUnicodeChar() > 0; 3164 } 3165 3166 /** 3167 * See if the key event means we should leave touch mode (and leave touch mode if so). 3168 * @param event The key event. 3169 * @return Whether this key event should be consumed (meaning the act of 3170 * leaving touch mode alone is considered the event). 3171 */ 3172 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3173 // Only relevant in touch mode. 3174 if (!mAttachInfo.mInTouchMode) { 3175 return false; 3176 } 3177 3178 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3179 final int action = event.getAction(); 3180 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3181 return false; 3182 } 3183 3184 // Don't leave touch mode if the IME told us not to. 3185 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3186 return false; 3187 } 3188 3189 // If the key can be used for keyboard navigation then leave touch mode 3190 // and select a focused view if needed (in ensureTouchMode). 3191 // When a new focused view is selected, we consume the navigation key because 3192 // navigation doesn't make much sense unless a view already has focus so 3193 // the key's purpose is to set focus. 3194 if (isNavigationKey(event)) { 3195 return ensureTouchMode(false); 3196 } 3197 3198 // If the key can be used for typing then leave touch mode 3199 // and select a focused view if needed (in ensureTouchMode). 3200 // Always allow the view to process the typing key. 3201 if (isTypingKey(event)) { 3202 ensureTouchMode(false); 3203 return false; 3204 } 3205 3206 return false; 3207 } 3208 3209 private void deliverKeyEvent(QueuedInputEvent q) { 3210 final KeyEvent event = (KeyEvent)q.mEvent; 3211 if (mInputEventConsistencyVerifier != null) { 3212 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3213 } 3214 3215 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3216 // If there is no view, then the event will not be handled. 3217 if (mView == null || !mAdded) { 3218 finishInputEvent(q, false); 3219 return; 3220 } 3221 3222 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3223 3224 // Perform predispatching before the IME. 3225 if (mView.dispatchKeyEventPreIme(event)) { 3226 finishInputEvent(q, true); 3227 return; 3228 } 3229 3230 // Dispatch to the IME before propagating down the view hierarchy. 3231 // The IME will eventually call back into handleImeFinishedEvent. 3232 if (mLastWasImTarget) { 3233 InputMethodManager imm = InputMethodManager.peekInstance(); 3234 if (imm != null) { 3235 final int seq = event.getSequenceNumber(); 3236 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3237 + seq + " event=" + event); 3238 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3239 return; 3240 } 3241 } 3242 } 3243 3244 // Not dispatching to IME, continue with post IME actions. 3245 deliverKeyEventPostIme(q); 3246 } 3247 3248 void handleImeFinishedEvent(int seq, boolean handled) { 3249 final QueuedInputEvent q = mCurrentInputEvent; 3250 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3251 final KeyEvent event = (KeyEvent)q.mEvent; 3252 if (DEBUG_IMF) { 3253 Log.v(TAG, "IME finished event: seq=" + seq 3254 + " handled=" + handled + " event=" + event); 3255 } 3256 if (handled) { 3257 finishInputEvent(q, true); 3258 } else { 3259 deliverKeyEventPostIme(q); 3260 } 3261 } else { 3262 if (DEBUG_IMF) { 3263 Log.v(TAG, "IME finished event: seq=" + seq 3264 + " handled=" + handled + ", event not found!"); 3265 } 3266 } 3267 } 3268 3269 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3270 final KeyEvent event = (KeyEvent)q.mEvent; 3271 if (ViewDebug.DEBUG_LATENCY) { 3272 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3273 } 3274 3275 // If the view went away, then the event will not be handled. 3276 if (mView == null || !mAdded) { 3277 finishInputEvent(q, false); 3278 return; 3279 } 3280 3281 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3282 if (checkForLeavingTouchModeAndConsume(event)) { 3283 finishInputEvent(q, true); 3284 return; 3285 } 3286 3287 // Make sure the fallback event policy sees all keys that will be delivered to the 3288 // view hierarchy. 3289 mFallbackEventHandler.preDispatchKeyEvent(event); 3290 3291 // Deliver the key to the view hierarchy. 3292 if (mView.dispatchKeyEvent(event)) { 3293 finishInputEvent(q, true); 3294 return; 3295 } 3296 3297 // If the Control modifier is held, try to interpret the key as a shortcut. 3298 if (event.getAction() == KeyEvent.ACTION_DOWN 3299 && event.isCtrlPressed() 3300 && event.getRepeatCount() == 0 3301 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3302 if (mView.dispatchKeyShortcutEvent(event)) { 3303 finishInputEvent(q, true); 3304 return; 3305 } 3306 } 3307 3308 // Apply the fallback event policy. 3309 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3310 finishInputEvent(q, true); 3311 return; 3312 } 3313 3314 // Handle automatic focus changes. 3315 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3316 int direction = 0; 3317 switch (event.getKeyCode()) { 3318 case KeyEvent.KEYCODE_DPAD_LEFT: 3319 if (event.hasNoModifiers()) { 3320 direction = View.FOCUS_LEFT; 3321 } 3322 break; 3323 case KeyEvent.KEYCODE_DPAD_RIGHT: 3324 if (event.hasNoModifiers()) { 3325 direction = View.FOCUS_RIGHT; 3326 } 3327 break; 3328 case KeyEvent.KEYCODE_DPAD_UP: 3329 if (event.hasNoModifiers()) { 3330 direction = View.FOCUS_UP; 3331 } 3332 break; 3333 case KeyEvent.KEYCODE_DPAD_DOWN: 3334 if (event.hasNoModifiers()) { 3335 direction = View.FOCUS_DOWN; 3336 } 3337 break; 3338 case KeyEvent.KEYCODE_TAB: 3339 if (event.hasNoModifiers()) { 3340 direction = View.FOCUS_FORWARD; 3341 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3342 direction = View.FOCUS_BACKWARD; 3343 } 3344 break; 3345 } 3346 3347 if (direction != 0) { 3348 View focused = mView != null ? mView.findFocus() : null; 3349 if (focused != null) { 3350 View v = focused.focusSearch(direction); 3351 if (v != null && v != focused) { 3352 // do the math the get the interesting rect 3353 // of previous focused into the coord system of 3354 // newly focused view 3355 focused.getFocusedRect(mTempRect); 3356 if (mView instanceof ViewGroup) { 3357 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3358 focused, mTempRect); 3359 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3360 v, mTempRect); 3361 } 3362 if (v.requestFocus(direction, mTempRect)) { 3363 playSoundEffect( 3364 SoundEffectConstants.getContantForFocusDirection(direction)); 3365 finishInputEvent(q, true); 3366 return; 3367 } 3368 } 3369 3370 // Give the focused view a last chance to handle the dpad key. 3371 if (mView.dispatchUnhandledMove(focused, direction)) { 3372 finishInputEvent(q, true); 3373 return; 3374 } 3375 } 3376 } 3377 } 3378 3379 // Key was unhandled. 3380 finishInputEvent(q, false); 3381 } 3382 3383 /* drag/drop */ 3384 void setLocalDragState(Object obj) { 3385 mLocalDragState = obj; 3386 } 3387 3388 private void handleDragEvent(DragEvent event) { 3389 // From the root, only drag start/end/location are dispatched. entered/exited 3390 // are determined and dispatched by the viewgroup hierarchy, who then report 3391 // that back here for ultimate reporting back to the framework. 3392 if (mView != null && mAdded) { 3393 final int what = event.mAction; 3394 3395 if (what == DragEvent.ACTION_DRAG_EXITED) { 3396 // A direct EXITED event means that the window manager knows we've just crossed 3397 // a window boundary, so the current drag target within this one must have 3398 // just been exited. Send it the usual notifications and then we're done 3399 // for now. 3400 mView.dispatchDragEvent(event); 3401 } else { 3402 // Cache the drag description when the operation starts, then fill it in 3403 // on subsequent calls as a convenience 3404 if (what == DragEvent.ACTION_DRAG_STARTED) { 3405 mCurrentDragView = null; // Start the current-recipient tracking 3406 mDragDescription = event.mClipDescription; 3407 } else { 3408 event.mClipDescription = mDragDescription; 3409 } 3410 3411 // For events with a [screen] location, translate into window coordinates 3412 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3413 mDragPoint.set(event.mX, event.mY); 3414 if (mTranslator != null) { 3415 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3416 } 3417 3418 if (mCurScrollY != 0) { 3419 mDragPoint.offset(0, mCurScrollY); 3420 } 3421 3422 event.mX = mDragPoint.x; 3423 event.mY = mDragPoint.y; 3424 } 3425 3426 // Remember who the current drag target is pre-dispatch 3427 final View prevDragView = mCurrentDragView; 3428 3429 // Now dispatch the drag/drop event 3430 boolean result = mView.dispatchDragEvent(event); 3431 3432 // If we changed apparent drag target, tell the OS about it 3433 if (prevDragView != mCurrentDragView) { 3434 try { 3435 if (prevDragView != null) { 3436 sWindowSession.dragRecipientExited(mWindow); 3437 } 3438 if (mCurrentDragView != null) { 3439 sWindowSession.dragRecipientEntered(mWindow); 3440 } 3441 } catch (RemoteException e) { 3442 Slog.e(TAG, "Unable to note drag target change"); 3443 } 3444 } 3445 3446 // Report the drop result when we're done 3447 if (what == DragEvent.ACTION_DROP) { 3448 mDragDescription = null; 3449 try { 3450 Log.i(TAG, "Reporting drop result: " + result); 3451 sWindowSession.reportDropResult(mWindow, result); 3452 } catch (RemoteException e) { 3453 Log.e(TAG, "Unable to report drop result"); 3454 } 3455 } 3456 3457 // When the drag operation ends, release any local state object 3458 // that may have been in use 3459 if (what == DragEvent.ACTION_DRAG_ENDED) { 3460 setLocalDragState(null); 3461 } 3462 } 3463 } 3464 event.recycle(); 3465 } 3466 3467 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3468 if (mSeq != args.seq) { 3469 // The sequence has changed, so we need to update our value and make 3470 // sure to do a traversal afterward so the window manager is given our 3471 // most recent data. 3472 mSeq = args.seq; 3473 mAttachInfo.mForceReportNewAttributes = true; 3474 scheduleTraversals(); 3475 } 3476 if (mView == null) return; 3477 if (args.localChanges != 0) { 3478 if (mAttachInfo != null) { 3479 mAttachInfo.mSystemUiVisibility = 3480 (mAttachInfo.mSystemUiVisibility & ~args.localChanges) | 3481 (args.localValue & args.localChanges); 3482 mAttachInfo.mRecomputeGlobalAttributes = true; 3483 } 3484 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3485 scheduleTraversals(); 3486 } 3487 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3488 } 3489 3490 public void getLastTouchPoint(Point outLocation) { 3491 outLocation.x = (int) mLastTouchPoint.x; 3492 outLocation.y = (int) mLastTouchPoint.y; 3493 } 3494 3495 public void setDragFocus(View newDragTarget) { 3496 if (mCurrentDragView != newDragTarget) { 3497 mCurrentDragView = newDragTarget; 3498 } 3499 } 3500 3501 private AudioManager getAudioManager() { 3502 if (mView == null) { 3503 throw new IllegalStateException("getAudioManager called when there is no mView"); 3504 } 3505 if (mAudioManager == null) { 3506 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3507 } 3508 return mAudioManager; 3509 } 3510 3511 public AccessibilityInteractionController getAccessibilityInteractionController() { 3512 if (mView == null) { 3513 throw new IllegalStateException("getAccessibilityInteractionController" 3514 + " called when there is no mView"); 3515 } 3516 if (mAccessibilityInteractionController == null) { 3517 mAccessibilityInteractionController = new AccessibilityInteractionController(); 3518 } 3519 return mAccessibilityInteractionController; 3520 } 3521 3522 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3523 boolean insetsPending) throws RemoteException { 3524 3525 float appScale = mAttachInfo.mApplicationScale; 3526 boolean restore = false; 3527 if (params != null && mTranslator != null) { 3528 restore = true; 3529 params.backup(); 3530 mTranslator.translateWindowLayout(params); 3531 } 3532 if (params != null) { 3533 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3534 } 3535 mPendingConfiguration.seq = 0; 3536 //Log.d(TAG, ">>>>>> CALLING relayout"); 3537 if (params != null && mOrigWindowType != params.type) { 3538 // For compatibility with old apps, don't crash here. 3539 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3540 Slog.w(TAG, "Window type can not be changed after " 3541 + "the window is added; ignoring change of " + mView); 3542 params.type = mOrigWindowType; 3543 } 3544 } 3545 int relayoutResult = sWindowSession.relayout( 3546 mWindow, mSeq, params, 3547 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3548 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3549 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3550 mWinFrame, mPendingContentInsets, mPendingVisibleInsets, 3551 mPendingConfiguration, mSurface); 3552 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3553 if (restore) { 3554 params.restore(); 3555 } 3556 3557 if (mTranslator != null) { 3558 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3559 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3560 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3561 } 3562 return relayoutResult; 3563 } 3564 3565 /** 3566 * {@inheritDoc} 3567 */ 3568 public void playSoundEffect(int effectId) { 3569 checkThread(); 3570 3571 try { 3572 final AudioManager audioManager = getAudioManager(); 3573 3574 switch (effectId) { 3575 case SoundEffectConstants.CLICK: 3576 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3577 return; 3578 case SoundEffectConstants.NAVIGATION_DOWN: 3579 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3580 return; 3581 case SoundEffectConstants.NAVIGATION_LEFT: 3582 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3583 return; 3584 case SoundEffectConstants.NAVIGATION_RIGHT: 3585 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3586 return; 3587 case SoundEffectConstants.NAVIGATION_UP: 3588 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3589 return; 3590 default: 3591 throw new IllegalArgumentException("unknown effect id " + effectId + 3592 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3593 } 3594 } catch (IllegalStateException e) { 3595 // Exception thrown by getAudioManager() when mView is null 3596 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3597 e.printStackTrace(); 3598 } 3599 } 3600 3601 /** 3602 * {@inheritDoc} 3603 */ 3604 public boolean performHapticFeedback(int effectId, boolean always) { 3605 try { 3606 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3607 } catch (RemoteException e) { 3608 return false; 3609 } 3610 } 3611 3612 /** 3613 * {@inheritDoc} 3614 */ 3615 public View focusSearch(View focused, int direction) { 3616 checkThread(); 3617 if (!(mView instanceof ViewGroup)) { 3618 return null; 3619 } 3620 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3621 } 3622 3623 public void debug() { 3624 mView.debug(); 3625 } 3626 3627 public void dumpGfxInfo(int[] info) { 3628 if (mView != null) { 3629 getGfxInfo(mView, info); 3630 } else { 3631 info[0] = info[1] = 0; 3632 } 3633 } 3634 3635 private void getGfxInfo(View view, int[] info) { 3636 DisplayList displayList = view.mDisplayList; 3637 info[0]++; 3638 if (displayList != null) { 3639 info[1] += displayList.getSize(); 3640 } 3641 3642 if (view instanceof ViewGroup) { 3643 ViewGroup group = (ViewGroup) view; 3644 3645 int count = group.getChildCount(); 3646 for (int i = 0; i < count; i++) { 3647 getGfxInfo(group.getChildAt(i), info); 3648 } 3649 } 3650 } 3651 3652 public void die(boolean immediate) { 3653 if (immediate) { 3654 doDie(); 3655 } else { 3656 sendEmptyMessage(DIE); 3657 } 3658 } 3659 3660 void doDie() { 3661 checkThread(); 3662 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3663 synchronized (this) { 3664 if (mAdded) { 3665 mAdded = false; 3666 dispatchDetachedFromWindow(); 3667 } 3668 3669 if (mAdded && !mFirst) { 3670 destroyHardwareRenderer(); 3671 3672 int viewVisibility = mView.getVisibility(); 3673 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3674 if (mWindowAttributesChanged || viewVisibilityChanged) { 3675 // If layout params have been changed, first give them 3676 // to the window manager to make sure it has the correct 3677 // animation info. 3678 try { 3679 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3680 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3681 sWindowSession.finishDrawing(mWindow); 3682 } 3683 } catch (RemoteException e) { 3684 } 3685 } 3686 3687 mSurface.release(); 3688 } 3689 } 3690 } 3691 3692 public void requestUpdateConfiguration(Configuration config) { 3693 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3694 sendMessage(msg); 3695 } 3696 3697 private void destroyHardwareRenderer() { 3698 if (mAttachInfo.mHardwareRenderer != null) { 3699 mAttachInfo.mHardwareRenderer.destroy(true); 3700 mAttachInfo.mHardwareRenderer = null; 3701 mAttachInfo.mHardwareAccelerated = false; 3702 } 3703 } 3704 3705 void dispatchImeFinishedEvent(int seq, boolean handled) { 3706 Message msg = obtainMessage(IME_FINISHED_EVENT); 3707 msg.arg1 = seq; 3708 msg.arg2 = handled ? 1 : 0; 3709 sendMessage(msg); 3710 } 3711 3712 public void dispatchResized(int w, int h, Rect coveredInsets, 3713 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3714 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3715 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3716 + " visibleInsets=" + visibleInsets.toShortString() 3717 + " reportDraw=" + reportDraw); 3718 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3719 if (mTranslator != null) { 3720 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3721 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3722 w *= mTranslator.applicationInvertedScale; 3723 h *= mTranslator.applicationInvertedScale; 3724 } 3725 msg.arg1 = w; 3726 msg.arg2 = h; 3727 ResizedInfo ri = new ResizedInfo(); 3728 ri.coveredInsets = new Rect(coveredInsets); 3729 ri.visibleInsets = new Rect(visibleInsets); 3730 ri.newConfig = newConfig; 3731 msg.obj = ri; 3732 sendMessage(msg); 3733 } 3734 3735 /** 3736 * Represents a pending input event that is waiting in a queue. 3737 * 3738 * Input events are processed in serial order by the timestamp specified by 3739 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 3740 * one input event to the application at a time and waits for the application 3741 * to finish handling it before delivering the next one. 3742 * 3743 * However, because the application or IME can synthesize and inject multiple 3744 * key events at a time without going through the input dispatcher, we end up 3745 * needing a queue on the application's side. 3746 */ 3747 private static final class QueuedInputEvent { 3748 public static final int FLAG_DELIVER_POST_IME = 1; 3749 3750 public QueuedInputEvent mNext; 3751 3752 public InputEvent mEvent; 3753 public InputEventReceiver mReceiver; 3754 public int mFlags; 3755 3756 // Used for latency calculations. 3757 public long mReceiveTimeNanos; 3758 public long mDeliverTimeNanos; 3759 public long mDeliverPostImeTimeNanos; 3760 } 3761 3762 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 3763 InputEventReceiver receiver, int flags) { 3764 QueuedInputEvent q = mQueuedInputEventPool; 3765 if (q != null) { 3766 mQueuedInputEventPoolSize -= 1; 3767 mQueuedInputEventPool = q.mNext; 3768 q.mNext = null; 3769 } else { 3770 q = new QueuedInputEvent(); 3771 } 3772 3773 q.mEvent = event; 3774 q.mReceiver = receiver; 3775 q.mFlags = flags; 3776 return q; 3777 } 3778 3779 private void recycleQueuedInputEvent(QueuedInputEvent q) { 3780 q.mEvent = null; 3781 q.mReceiver = null; 3782 3783 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 3784 mQueuedInputEventPoolSize += 1; 3785 q.mNext = mQueuedInputEventPool; 3786 mQueuedInputEventPool = q; 3787 } 3788 } 3789 3790 void enqueueInputEvent(InputEvent event, 3791 InputEventReceiver receiver, int flags) { 3792 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 3793 3794 if (ViewDebug.DEBUG_LATENCY) { 3795 q.mReceiveTimeNanos = System.nanoTime(); 3796 q.mDeliverTimeNanos = 0; 3797 q.mDeliverPostImeTimeNanos = 0; 3798 } 3799 3800 // Always enqueue the input event in order, regardless of its time stamp. 3801 // We do this because the application or the IME may inject key events 3802 // in response to touch events and we want to ensure that the injected keys 3803 // are processed in the order they were received and we cannot trust that 3804 // the time stamp of injected events are monotonic. 3805 QueuedInputEvent last = mFirstPendingInputEvent; 3806 if (last == null) { 3807 mFirstPendingInputEvent = q; 3808 } else { 3809 while (last.mNext != null) { 3810 last = last.mNext; 3811 } 3812 last.mNext = q; 3813 } 3814 3815 scheduleProcessInputEvents(); 3816 } 3817 3818 private void scheduleProcessInputEvents() { 3819 if (!mProcessInputEventsScheduled) { 3820 mProcessInputEventsScheduled = true; 3821 sendEmptyMessage(DO_PROCESS_INPUT_EVENTS); 3822 } 3823 } 3824 3825 private void doProcessInputEvents() { 3826 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 3827 QueuedInputEvent q = mFirstPendingInputEvent; 3828 mFirstPendingInputEvent = q.mNext; 3829 q.mNext = null; 3830 mCurrentInputEvent = q; 3831 deliverInputEvent(q); 3832 } 3833 3834 // We are done processing all input events that we can process right now 3835 // so we can clear the pending flag immediately. 3836 if (mProcessInputEventsScheduled) { 3837 mProcessInputEventsScheduled = false; 3838 removeMessages(DO_PROCESS_INPUT_EVENTS); 3839 } 3840 } 3841 3842 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 3843 if (q != mCurrentInputEvent) { 3844 throw new IllegalStateException("finished input event out of order"); 3845 } 3846 3847 if (ViewDebug.DEBUG_LATENCY) { 3848 final long now = System.nanoTime(); 3849 final long eventTime = q.mEvent.getEventTimeNano(); 3850 final StringBuilder msg = new StringBuilder(); 3851 msg.append("Spent "); 3852 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 3853 msg.append("ms processing "); 3854 if (q.mEvent instanceof KeyEvent) { 3855 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 3856 msg.append("key event, action="); 3857 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 3858 } else { 3859 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 3860 msg.append("motion event, action="); 3861 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 3862 msg.append(", historySize="); 3863 msg.append(motionEvent.getHistorySize()); 3864 } 3865 msg.append(", handled="); 3866 msg.append(handled); 3867 msg.append(", received at +"); 3868 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 3869 if (q.mDeliverTimeNanos != 0) { 3870 msg.append("ms, delivered at +"); 3871 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 3872 } 3873 if (q.mDeliverPostImeTimeNanos != 0) { 3874 msg.append("ms, delivered post IME at +"); 3875 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 3876 } 3877 msg.append("ms, finished at +"); 3878 msg.append((now - eventTime) * 0.000001f); 3879 msg.append("ms."); 3880 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 3881 } 3882 3883 if (q.mReceiver != null) { 3884 q.mReceiver.finishInputEvent(q.mEvent, handled); 3885 } else { 3886 q.mEvent.recycleIfNeededAfterDispatch(); 3887 } 3888 3889 recycleQueuedInputEvent(q); 3890 3891 mCurrentInputEvent = null; 3892 if (mFirstPendingInputEvent != null) { 3893 scheduleProcessInputEvents(); 3894 } 3895 } 3896 3897 final class WindowInputEventReceiver extends InputEventReceiver { 3898 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 3899 super(inputChannel, looper); 3900 } 3901 3902 @Override 3903 public void onInputEvent(InputEvent event) { 3904 enqueueInputEvent(event, this, 0); 3905 } 3906 } 3907 WindowInputEventReceiver mInputEventReceiver; 3908 3909 public void dispatchKey(KeyEvent event) { 3910 enqueueInputEvent(event, null, 0); 3911 } 3912 3913 public void dispatchAppVisibility(boolean visible) { 3914 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3915 msg.arg1 = visible ? 1 : 0; 3916 sendMessage(msg); 3917 } 3918 3919 public void dispatchGetNewSurface() { 3920 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3921 sendMessage(msg); 3922 } 3923 3924 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3925 Message msg = Message.obtain(); 3926 msg.what = WINDOW_FOCUS_CHANGED; 3927 msg.arg1 = hasFocus ? 1 : 0; 3928 msg.arg2 = inTouchMode ? 1 : 0; 3929 sendMessage(msg); 3930 } 3931 3932 public void dispatchCloseSystemDialogs(String reason) { 3933 Message msg = Message.obtain(); 3934 msg.what = CLOSE_SYSTEM_DIALOGS; 3935 msg.obj = reason; 3936 sendMessage(msg); 3937 } 3938 3939 public void dispatchDragEvent(DragEvent event) { 3940 final int what; 3941 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3942 what = DISPATCH_DRAG_LOCATION_EVENT; 3943 removeMessages(what); 3944 } else { 3945 what = DISPATCH_DRAG_EVENT; 3946 } 3947 Message msg = obtainMessage(what, event); 3948 sendMessage(msg); 3949 } 3950 3951 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 3952 int localValue, int localChanges) { 3953 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 3954 args.seq = seq; 3955 args.globalVisibility = globalVisibility; 3956 args.localValue = localValue; 3957 args.localChanges = localChanges; 3958 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, args)); 3959 } 3960 3961 /** 3962 * The window is getting focus so if there is anything focused/selected 3963 * send an {@link AccessibilityEvent} to announce that. 3964 */ 3965 private void sendAccessibilityEvents() { 3966 if (!mAccessibilityManager.isEnabled()) { 3967 return; 3968 } 3969 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3970 View focusedView = mView.findFocus(); 3971 if (focusedView != null && focusedView != mView) { 3972 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3973 } 3974 } 3975 3976 /** 3977 * Post a callback to send a 3978 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3979 * This event is send at most once every 3980 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3981 */ 3982 private void postSendWindowContentChangedCallback() { 3983 if (mSendWindowContentChangedAccessibilityEvent == null) { 3984 mSendWindowContentChangedAccessibilityEvent = 3985 new SendWindowContentChangedAccessibilityEvent(); 3986 } 3987 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3988 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3989 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3990 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 3991 } 3992 } 3993 3994 /** 3995 * Remove a posted callback to send a 3996 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3997 */ 3998 private void removeSendWindowContentChangedCallback() { 3999 if (mSendWindowContentChangedAccessibilityEvent != null) { 4000 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4001 } 4002 } 4003 4004 public boolean showContextMenuForChild(View originalView) { 4005 return false; 4006 } 4007 4008 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4009 return null; 4010 } 4011 4012 public void createContextMenu(ContextMenu menu) { 4013 } 4014 4015 public void childDrawableStateChanged(View child) { 4016 } 4017 4018 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4019 if (mView == null) { 4020 return false; 4021 } 4022 mAccessibilityManager.sendAccessibilityEvent(event); 4023 return true; 4024 } 4025 4026 void checkThread() { 4027 if (mThread != Thread.currentThread()) { 4028 throw new CalledFromWrongThreadException( 4029 "Only the original thread that created a view hierarchy can touch its views."); 4030 } 4031 } 4032 4033 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4034 // ViewAncestor never intercepts touch event, so this can be a no-op 4035 } 4036 4037 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4038 boolean immediate) { 4039 return scrollToRectOrFocus(rectangle, immediate); 4040 } 4041 4042 class TakenSurfaceHolder extends BaseSurfaceHolder { 4043 @Override 4044 public boolean onAllowLockCanvas() { 4045 return mDrawingAllowed; 4046 } 4047 4048 @Override 4049 public void onRelayoutContainer() { 4050 // Not currently interesting -- from changing between fixed and layout size. 4051 } 4052 4053 public void setFormat(int format) { 4054 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4055 } 4056 4057 public void setType(int type) { 4058 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4059 } 4060 4061 @Override 4062 public void onUpdateSurface() { 4063 // We take care of format and type changes on our own. 4064 throw new IllegalStateException("Shouldn't be here"); 4065 } 4066 4067 public boolean isCreating() { 4068 return mIsCreating; 4069 } 4070 4071 @Override 4072 public void setFixedSize(int width, int height) { 4073 throw new UnsupportedOperationException( 4074 "Currently only support sizing from layout"); 4075 } 4076 4077 public void setKeepScreenOn(boolean screenOn) { 4078 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4079 } 4080 } 4081 4082 static class InputMethodCallback extends IInputMethodCallback.Stub { 4083 private WeakReference<ViewRootImpl> mViewAncestor; 4084 4085 public InputMethodCallback(ViewRootImpl viewAncestor) { 4086 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4087 } 4088 4089 public void finishedEvent(int seq, boolean handled) { 4090 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4091 if (viewAncestor != null) { 4092 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4093 } 4094 } 4095 4096 public void sessionCreated(IInputMethodSession session) { 4097 // Stub -- not for use in the client. 4098 } 4099 } 4100 4101 static class W extends IWindow.Stub { 4102 private final WeakReference<ViewRootImpl> mViewAncestor; 4103 4104 W(ViewRootImpl viewAncestor) { 4105 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4106 } 4107 4108 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4109 boolean reportDraw, Configuration newConfig) { 4110 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4111 if (viewAncestor != null) { 4112 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4113 newConfig); 4114 } 4115 } 4116 4117 public void dispatchAppVisibility(boolean visible) { 4118 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4119 if (viewAncestor != null) { 4120 viewAncestor.dispatchAppVisibility(visible); 4121 } 4122 } 4123 4124 public void dispatchGetNewSurface() { 4125 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4126 if (viewAncestor != null) { 4127 viewAncestor.dispatchGetNewSurface(); 4128 } 4129 } 4130 4131 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4132 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4133 if (viewAncestor != null) { 4134 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4135 } 4136 } 4137 4138 private static int checkCallingPermission(String permission) { 4139 try { 4140 return ActivityManagerNative.getDefault().checkPermission( 4141 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4142 } catch (RemoteException e) { 4143 return PackageManager.PERMISSION_DENIED; 4144 } 4145 } 4146 4147 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4148 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4149 if (viewAncestor != null) { 4150 final View view = viewAncestor.mView; 4151 if (view != null) { 4152 if (checkCallingPermission(Manifest.permission.DUMP) != 4153 PackageManager.PERMISSION_GRANTED) { 4154 throw new SecurityException("Insufficient permissions to invoke" 4155 + " executeCommand() from pid=" + Binder.getCallingPid() 4156 + ", uid=" + Binder.getCallingUid()); 4157 } 4158 4159 OutputStream clientStream = null; 4160 try { 4161 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4162 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4163 } catch (IOException e) { 4164 e.printStackTrace(); 4165 } finally { 4166 if (clientStream != null) { 4167 try { 4168 clientStream.close(); 4169 } catch (IOException e) { 4170 e.printStackTrace(); 4171 } 4172 } 4173 } 4174 } 4175 } 4176 } 4177 4178 public void closeSystemDialogs(String reason) { 4179 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4180 if (viewAncestor != null) { 4181 viewAncestor.dispatchCloseSystemDialogs(reason); 4182 } 4183 } 4184 4185 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4186 boolean sync) { 4187 if (sync) { 4188 try { 4189 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4190 } catch (RemoteException e) { 4191 } 4192 } 4193 } 4194 4195 public void dispatchWallpaperCommand(String action, int x, int y, 4196 int z, Bundle extras, boolean sync) { 4197 if (sync) { 4198 try { 4199 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4200 } catch (RemoteException e) { 4201 } 4202 } 4203 } 4204 4205 /* Drag/drop */ 4206 public void dispatchDragEvent(DragEvent event) { 4207 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4208 if (viewAncestor != null) { 4209 viewAncestor.dispatchDragEvent(event); 4210 } 4211 } 4212 4213 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4214 int localValue, int localChanges) { 4215 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4216 if (viewAncestor != null) { 4217 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4218 localValue, localChanges); 4219 } 4220 } 4221 } 4222 4223 /** 4224 * Maintains state information for a single trackball axis, generating 4225 * discrete (DPAD) movements based on raw trackball motion. 4226 */ 4227 static final class TrackballAxis { 4228 /** 4229 * The maximum amount of acceleration we will apply. 4230 */ 4231 static final float MAX_ACCELERATION = 20; 4232 4233 /** 4234 * The maximum amount of time (in milliseconds) between events in order 4235 * for us to consider the user to be doing fast trackball movements, 4236 * and thus apply an acceleration. 4237 */ 4238 static final long FAST_MOVE_TIME = 150; 4239 4240 /** 4241 * Scaling factor to the time (in milliseconds) between events to how 4242 * much to multiple/divide the current acceleration. When movement 4243 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4244 * FAST_MOVE_TIME it divides it. 4245 */ 4246 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4247 4248 float position; 4249 float absPosition; 4250 float acceleration = 1; 4251 long lastMoveTime = 0; 4252 int step; 4253 int dir; 4254 int nonAccelMovement; 4255 4256 void reset(int _step) { 4257 position = 0; 4258 acceleration = 1; 4259 lastMoveTime = 0; 4260 step = _step; 4261 dir = 0; 4262 } 4263 4264 /** 4265 * Add trackball movement into the state. If the direction of movement 4266 * has been reversed, the state is reset before adding the 4267 * movement (so that you don't have to compensate for any previously 4268 * collected movement before see the result of the movement in the 4269 * new direction). 4270 * 4271 * @return Returns the absolute value of the amount of movement 4272 * collected so far. 4273 */ 4274 float collect(float off, long time, String axis) { 4275 long normTime; 4276 if (off > 0) { 4277 normTime = (long)(off * FAST_MOVE_TIME); 4278 if (dir < 0) { 4279 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4280 position = 0; 4281 step = 0; 4282 acceleration = 1; 4283 lastMoveTime = 0; 4284 } 4285 dir = 1; 4286 } else if (off < 0) { 4287 normTime = (long)((-off) * FAST_MOVE_TIME); 4288 if (dir > 0) { 4289 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4290 position = 0; 4291 step = 0; 4292 acceleration = 1; 4293 lastMoveTime = 0; 4294 } 4295 dir = -1; 4296 } else { 4297 normTime = 0; 4298 } 4299 4300 // The number of milliseconds between each movement that is 4301 // considered "normal" and will not result in any acceleration 4302 // or deceleration, scaled by the offset we have here. 4303 if (normTime > 0) { 4304 long delta = time - lastMoveTime; 4305 lastMoveTime = time; 4306 float acc = acceleration; 4307 if (delta < normTime) { 4308 // The user is scrolling rapidly, so increase acceleration. 4309 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4310 if (scale > 1) acc *= scale; 4311 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4312 + off + " normTime=" + normTime + " delta=" + delta 4313 + " scale=" + scale + " acc=" + acc); 4314 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4315 } else { 4316 // The user is scrolling slowly, so decrease acceleration. 4317 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4318 if (scale > 1) acc /= scale; 4319 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4320 + off + " normTime=" + normTime + " delta=" + delta 4321 + " scale=" + scale + " acc=" + acc); 4322 acceleration = acc > 1 ? acc : 1; 4323 } 4324 } 4325 position += off; 4326 return (absPosition = Math.abs(position)); 4327 } 4328 4329 /** 4330 * Generate the number of discrete movement events appropriate for 4331 * the currently collected trackball movement. 4332 * 4333 * @param precision The minimum movement required to generate the 4334 * first discrete movement. 4335 * 4336 * @return Returns the number of discrete movements, either positive 4337 * or negative, or 0 if there is not enough trackball movement yet 4338 * for a discrete movement. 4339 */ 4340 int generate(float precision) { 4341 int movement = 0; 4342 nonAccelMovement = 0; 4343 do { 4344 final int dir = position >= 0 ? 1 : -1; 4345 switch (step) { 4346 // If we are going to execute the first step, then we want 4347 // to do this as soon as possible instead of waiting for 4348 // a full movement, in order to make things look responsive. 4349 case 0: 4350 if (absPosition < precision) { 4351 return movement; 4352 } 4353 movement += dir; 4354 nonAccelMovement += dir; 4355 step = 1; 4356 break; 4357 // If we have generated the first movement, then we need 4358 // to wait for the second complete trackball motion before 4359 // generating the second discrete movement. 4360 case 1: 4361 if (absPosition < 2) { 4362 return movement; 4363 } 4364 movement += dir; 4365 nonAccelMovement += dir; 4366 position += dir > 0 ? -2 : 2; 4367 absPosition = Math.abs(position); 4368 step = 2; 4369 break; 4370 // After the first two, we generate discrete movements 4371 // consistently with the trackball, applying an acceleration 4372 // if the trackball is moving quickly. This is a simple 4373 // acceleration on top of what we already compute based 4374 // on how quickly the wheel is being turned, to apply 4375 // a longer increasing acceleration to continuous movement 4376 // in one direction. 4377 default: 4378 if (absPosition < 1) { 4379 return movement; 4380 } 4381 movement += dir; 4382 position += dir >= 0 ? -1 : 1; 4383 absPosition = Math.abs(position); 4384 float acc = acceleration; 4385 acc *= 1.1f; 4386 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4387 break; 4388 } 4389 } while (true); 4390 } 4391 } 4392 4393 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4394 public CalledFromWrongThreadException(String msg) { 4395 super(msg); 4396 } 4397 } 4398 4399 private SurfaceHolder mHolder = new SurfaceHolder() { 4400 // we only need a SurfaceHolder for opengl. it would be nice 4401 // to implement everything else though, especially the callback 4402 // support (opengl doesn't make use of it right now, but eventually 4403 // will). 4404 public Surface getSurface() { 4405 return mSurface; 4406 } 4407 4408 public boolean isCreating() { 4409 return false; 4410 } 4411 4412 public void addCallback(Callback callback) { 4413 } 4414 4415 public void removeCallback(Callback callback) { 4416 } 4417 4418 public void setFixedSize(int width, int height) { 4419 } 4420 4421 public void setSizeFromLayout() { 4422 } 4423 4424 public void setFormat(int format) { 4425 } 4426 4427 public void setType(int type) { 4428 } 4429 4430 public void setKeepScreenOn(boolean screenOn) { 4431 } 4432 4433 public Canvas lockCanvas() { 4434 return null; 4435 } 4436 4437 public Canvas lockCanvas(Rect dirty) { 4438 return null; 4439 } 4440 4441 public void unlockCanvasAndPost(Canvas canvas) { 4442 } 4443 public Rect getSurfaceFrame() { 4444 return null; 4445 } 4446 }; 4447 4448 static RunQueue getRunQueue() { 4449 RunQueue rq = sRunQueues.get(); 4450 if (rq != null) { 4451 return rq; 4452 } 4453 rq = new RunQueue(); 4454 sRunQueues.set(rq); 4455 return rq; 4456 } 4457 4458 /** 4459 * @hide 4460 */ 4461 static final class RunQueue { 4462 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4463 4464 void post(Runnable action) { 4465 postDelayed(action, 0); 4466 } 4467 4468 void postDelayed(Runnable action, long delayMillis) { 4469 HandlerAction handlerAction = new HandlerAction(); 4470 handlerAction.action = action; 4471 handlerAction.delay = delayMillis; 4472 4473 synchronized (mActions) { 4474 mActions.add(handlerAction); 4475 } 4476 } 4477 4478 void removeCallbacks(Runnable action) { 4479 final HandlerAction handlerAction = new HandlerAction(); 4480 handlerAction.action = action; 4481 4482 synchronized (mActions) { 4483 final ArrayList<HandlerAction> actions = mActions; 4484 4485 while (actions.remove(handlerAction)) { 4486 // Keep going 4487 } 4488 } 4489 } 4490 4491 void executeActions(Handler handler) { 4492 synchronized (mActions) { 4493 final ArrayList<HandlerAction> actions = mActions; 4494 final int count = actions.size(); 4495 4496 for (int i = 0; i < count; i++) { 4497 final HandlerAction handlerAction = actions.get(i); 4498 handler.postDelayed(handlerAction.action, handlerAction.delay); 4499 } 4500 4501 actions.clear(); 4502 } 4503 } 4504 4505 private static class HandlerAction { 4506 Runnable action; 4507 long delay; 4508 4509 @Override 4510 public boolean equals(Object o) { 4511 if (this == o) return true; 4512 if (o == null || getClass() != o.getClass()) return false; 4513 4514 HandlerAction that = (HandlerAction) o; 4515 return !(action != null ? !action.equals(that.action) : that.action != null); 4516 4517 } 4518 4519 @Override 4520 public int hashCode() { 4521 int result = action != null ? action.hashCode() : 0; 4522 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4523 return result; 4524 } 4525 } 4526 } 4527 4528 /** 4529 * Class for managing the accessibility interaction connection 4530 * based on the global accessibility state. 4531 */ 4532 final class AccessibilityInteractionConnectionManager 4533 implements AccessibilityStateChangeListener { 4534 public void onAccessibilityStateChanged(boolean enabled) { 4535 if (enabled) { 4536 ensureConnection(); 4537 } else { 4538 ensureNoConnection(); 4539 } 4540 } 4541 4542 public void ensureConnection() { 4543 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4544 if (!registered) { 4545 mAttachInfo.mAccessibilityWindowId = 4546 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4547 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4548 } 4549 } 4550 4551 public void ensureNoConnection() { 4552 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4553 if (registered) { 4554 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4555 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4556 } 4557 } 4558 } 4559 4560 /** 4561 * This class is an interface this ViewAncestor provides to the 4562 * AccessibilityManagerService to the latter can interact with 4563 * the view hierarchy in this ViewAncestor. 4564 */ 4565 static final class AccessibilityInteractionConnection 4566 extends IAccessibilityInteractionConnection.Stub { 4567 private final WeakReference<ViewRootImpl> mViewRootImpl; 4568 4569 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 4570 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 4571 } 4572 4573 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 4574 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4575 int interrogatingPid, long interrogatingTid) { 4576 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4577 if (viewRootImpl != null && viewRootImpl.mView != null) { 4578 viewRootImpl.getAccessibilityInteractionController() 4579 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 4580 interactionId, callback, interrogatingPid, interrogatingTid); 4581 } 4582 } 4583 4584 public void performAccessibilityAction(long accessibilityNodeId, int action, 4585 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4586 int interogatingPid, long interrogatingTid) { 4587 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4588 if (viewRootImpl != null && viewRootImpl.mView != null) { 4589 viewRootImpl.getAccessibilityInteractionController() 4590 .performAccessibilityActionClientThread(accessibilityNodeId, action, 4591 interactionId, callback, interogatingPid, interrogatingTid); 4592 } 4593 } 4594 4595 public void findAccessibilityNodeInfoByViewId(int viewId, 4596 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4597 int interrogatingPid, long interrogatingTid) { 4598 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4599 if (viewRootImpl != null && viewRootImpl.mView != null) { 4600 viewRootImpl.getAccessibilityInteractionController() 4601 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4602 interrogatingPid, interrogatingTid); 4603 } 4604 } 4605 4606 public void findAccessibilityNodeInfosByText(String text, long accessibilityNodeId, 4607 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4608 int interrogatingPid, long interrogatingTid) { 4609 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4610 if (viewRootImpl != null && viewRootImpl.mView != null) { 4611 viewRootImpl.getAccessibilityInteractionController() 4612 .findAccessibilityNodeInfosByTextClientThread(text, accessibilityNodeId, 4613 interactionId, callback, interrogatingPid, interrogatingTid); 4614 } 4615 } 4616 } 4617 4618 /** 4619 * Class for managing accessibility interactions initiated from the system 4620 * and targeting the view hierarchy. A *ClientThread method is to be 4621 * called from the interaction connection this ViewAncestor gives the 4622 * system to talk to it and a corresponding *UiThread method that is executed 4623 * on the UI thread. 4624 */ 4625 final class AccessibilityInteractionController { 4626 private static final int POOL_SIZE = 5; 4627 4628 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4629 new ArrayList<AccessibilityNodeInfo>(); 4630 4631 // Reusable poolable arguments for interacting with the view hierarchy 4632 // to fit more arguments than Message and to avoid sharing objects between 4633 // two messages since several threads can send messages concurrently. 4634 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4635 new PoolableManager<SomeArgs>() { 4636 public SomeArgs newInstance() { 4637 return new SomeArgs(); 4638 } 4639 4640 public void onAcquired(SomeArgs info) { 4641 /* do nothing */ 4642 } 4643 4644 public void onReleased(SomeArgs info) { 4645 info.clear(); 4646 } 4647 }, POOL_SIZE) 4648 ); 4649 4650 public class SomeArgs implements Poolable<SomeArgs> { 4651 private SomeArgs mNext; 4652 private boolean mIsPooled; 4653 4654 public Object arg1; 4655 public Object arg2; 4656 public int argi1; 4657 public int argi2; 4658 public int argi3; 4659 4660 public SomeArgs getNextPoolable() { 4661 return mNext; 4662 } 4663 4664 public boolean isPooled() { 4665 return mIsPooled; 4666 } 4667 4668 public void setNextPoolable(SomeArgs args) { 4669 mNext = args; 4670 } 4671 4672 public void setPooled(boolean isPooled) { 4673 mIsPooled = isPooled; 4674 } 4675 4676 private void clear() { 4677 arg1 = null; 4678 arg2 = null; 4679 argi1 = 0; 4680 argi2 = 0; 4681 argi3 = 0; 4682 } 4683 } 4684 4685 public void findAccessibilityNodeInfoByAccessibilityIdClientThread( 4686 long accessibilityNodeId, int interactionId, 4687 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4688 long interrogatingTid) { 4689 Message message = Message.obtain(); 4690 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4691 SomeArgs args = mPool.acquire(); 4692 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4693 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4694 args.argi3 = interactionId; 4695 args.arg1 = callback; 4696 message.obj = args; 4697 // If the interrogation is performed by the same thread as the main UI 4698 // thread in this process, set the message as a static reference so 4699 // after this call completes the same thread but in the interrogating 4700 // client can handle the message to generate the result. 4701 if (interrogatingPid == Process.myPid() 4702 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4703 message.setTarget(ViewRootImpl.this); 4704 AccessibilityInteractionClient.getInstanceForThread( 4705 interrogatingTid).setSameThreadMessage(message); 4706 } else { 4707 sendMessage(message); 4708 } 4709 } 4710 4711 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4712 SomeArgs args = (SomeArgs) message.obj; 4713 final int accessibilityViewId = args.argi1; 4714 final int virtualDescendantId = args.argi2; 4715 final int interactionId = args.argi3; 4716 final IAccessibilityInteractionConnectionCallback callback = 4717 (IAccessibilityInteractionConnectionCallback) args.arg1; 4718 mPool.release(args); 4719 AccessibilityNodeInfo info = null; 4720 try { 4721 View target = findViewByAccessibilityId(accessibilityViewId); 4722 if (target != null && target.getVisibility() == View.VISIBLE) { 4723 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4724 if (provider != null) { 4725 info = provider.createAccessibilityNodeInfo(virtualDescendantId); 4726 } else if (virtualDescendantId == View.NO_ID) { 4727 info = target.createAccessibilityNodeInfo(); 4728 } 4729 } 4730 } finally { 4731 try { 4732 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4733 } catch (RemoteException re) { 4734 /* ignore - the other side will time out */ 4735 } 4736 } 4737 } 4738 4739 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4740 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4741 long interrogatingTid) { 4742 Message message = Message.obtain(); 4743 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4744 message.arg1 = viewId; 4745 message.arg2 = interactionId; 4746 message.obj = callback; 4747 // If the interrogation is performed by the same thread as the main UI 4748 // thread in this process, set the message as a static reference so 4749 // after this call completes the same thread but in the interrogating 4750 // client can handle the message to generate the result. 4751 if (interrogatingPid == Process.myPid() 4752 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4753 message.setTarget(ViewRootImpl.this); 4754 AccessibilityInteractionClient.getInstanceForThread( 4755 interrogatingTid).setSameThreadMessage(message); 4756 } else { 4757 sendMessage(message); 4758 } 4759 } 4760 4761 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4762 final int viewId = message.arg1; 4763 final int interactionId = message.arg2; 4764 final IAccessibilityInteractionConnectionCallback callback = 4765 (IAccessibilityInteractionConnectionCallback) message.obj; 4766 4767 AccessibilityNodeInfo info = null; 4768 try { 4769 View root = ViewRootImpl.this.mView; 4770 View target = root.findViewById(viewId); 4771 if (target != null && target.getVisibility() == View.VISIBLE) { 4772 info = target.createAccessibilityNodeInfo(); 4773 } 4774 } finally { 4775 try { 4776 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4777 } catch (RemoteException re) { 4778 /* ignore - the other side will time out */ 4779 } 4780 } 4781 } 4782 4783 public void findAccessibilityNodeInfosByTextClientThread(String text, 4784 long accessibilityNodeId, int interactionId, 4785 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4786 long interrogatingTid) { 4787 Message message = Message.obtain(); 4788 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT; 4789 SomeArgs args = mPool.acquire(); 4790 args.arg1 = text; 4791 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4792 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4793 args.argi3 = interactionId; 4794 args.arg2 = callback; 4795 message.obj = args; 4796 // If the interrogation is performed by the same thread as the main UI 4797 // thread in this process, set the message as a static reference so 4798 // after this call completes the same thread but in the interrogating 4799 // client can handle the message to generate the result. 4800 if (interrogatingPid == Process.myPid() 4801 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4802 message.setTarget(ViewRootImpl.this); 4803 AccessibilityInteractionClient.getInstanceForThread( 4804 interrogatingTid).setSameThreadMessage(message); 4805 } else { 4806 sendMessage(message); 4807 } 4808 } 4809 4810 public void findAccessibilityNodeInfosByTextUiThread(Message message) { 4811 SomeArgs args = (SomeArgs) message.obj; 4812 final String text = (String) args.arg1; 4813 final int accessibilityViewId = args.argi1; 4814 final int virtualDescendantId = args.argi2; 4815 final int interactionId = args.argi3; 4816 final IAccessibilityInteractionConnectionCallback callback = 4817 (IAccessibilityInteractionConnectionCallback) args.arg2; 4818 mPool.release(args); 4819 List<AccessibilityNodeInfo> infos = null; 4820 try { 4821 View target; 4822 if (accessibilityViewId != View.NO_ID) { 4823 target = findViewByAccessibilityId(accessibilityViewId); 4824 } else { 4825 target = ViewRootImpl.this.mView; 4826 } 4827 if (target != null && target.getVisibility() == View.VISIBLE) { 4828 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4829 if (provider != null) { 4830 infos = provider.findAccessibilityNodeInfosByText(text, 4831 virtualDescendantId); 4832 } else if (virtualDescendantId == View.NO_ID) { 4833 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4834 foundViews.clear(); 4835 target.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4836 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION 4837 | View.FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS); 4838 if (!foundViews.isEmpty()) { 4839 infos = mTempAccessibilityNodeInfoList; 4840 infos.clear(); 4841 final int viewCount = foundViews.size(); 4842 for (int i = 0; i < viewCount; i++) { 4843 View foundView = foundViews.get(i); 4844 if (foundView.getVisibility() == View.VISIBLE) { 4845 provider = foundView.getAccessibilityNodeProvider(); 4846 if (provider != null) { 4847 List<AccessibilityNodeInfo> infosFromProvider = 4848 provider.findAccessibilityNodeInfosByText(text, 4849 virtualDescendantId); 4850 if (infosFromProvider != null) { 4851 infos.addAll(infosFromProvider); 4852 } 4853 } else { 4854 infos.add(foundView.createAccessibilityNodeInfo()); 4855 } 4856 } 4857 } 4858 } 4859 } 4860 } 4861 } finally { 4862 try { 4863 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4864 } catch (RemoteException re) { 4865 /* ignore - the other side will time out */ 4866 } 4867 } 4868 } 4869 4870 public void performAccessibilityActionClientThread(long accessibilityNodeId, int action, 4871 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4872 int interogatingPid, long interrogatingTid) { 4873 Message message = Message.obtain(); 4874 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4875 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4876 message.arg2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4877 SomeArgs args = mPool.acquire(); 4878 args.argi1 = action; 4879 args.argi2 = interactionId; 4880 args.arg1 = callback; 4881 message.obj = args; 4882 // If the interrogation is performed by the same thread as the main UI 4883 // thread in this process, set the message as a static reference so 4884 // after this call completes the same thread but in the interrogating 4885 // client can handle the message to generate the result. 4886 if (interogatingPid == Process.myPid() 4887 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4888 message.setTarget(ViewRootImpl.this); 4889 AccessibilityInteractionClient.getInstanceForThread( 4890 interrogatingTid).setSameThreadMessage(message); 4891 } else { 4892 sendMessage(message); 4893 } 4894 } 4895 4896 public void perfromAccessibilityActionUiThread(Message message) { 4897 final int accessibilityViewId = message.arg1; 4898 final int virtualDescendantId = message.arg2; 4899 SomeArgs args = (SomeArgs) message.obj; 4900 final int action = args.argi1; 4901 final int interactionId = args.argi2; 4902 final IAccessibilityInteractionConnectionCallback callback = 4903 (IAccessibilityInteractionConnectionCallback) args.arg1; 4904 mPool.release(args); 4905 boolean succeeded = false; 4906 try { 4907 View target = findViewByAccessibilityId(accessibilityViewId); 4908 if (target != null && target.getVisibility() == View.VISIBLE) { 4909 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4910 if (provider != null) { 4911 succeeded = provider.performAccessibilityAction(action, 4912 virtualDescendantId); 4913 } else if (virtualDescendantId == View.NO_ID) { 4914 switch (action) { 4915 case AccessibilityNodeInfo.ACTION_FOCUS: { 4916 if (!target.hasFocus()) { 4917 // Get out of touch mode since accessibility 4918 // wants to move focus around. 4919 ensureTouchMode(false); 4920 succeeded = target.requestFocus(); 4921 } 4922 } break; 4923 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4924 if (target.hasFocus()) { 4925 target.clearFocus(); 4926 succeeded = !target.isFocused(); 4927 } 4928 } break; 4929 case AccessibilityNodeInfo.ACTION_SELECT: { 4930 if (!target.isSelected()) { 4931 target.setSelected(true); 4932 succeeded = target.isSelected(); 4933 } 4934 } break; 4935 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4936 if (target.isSelected()) { 4937 target.setSelected(false); 4938 succeeded = !target.isSelected(); 4939 } 4940 } break; 4941 } 4942 } 4943 } 4944 } finally { 4945 try { 4946 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4947 } catch (RemoteException re) { 4948 /* ignore - the other side will time out */ 4949 } 4950 } 4951 } 4952 4953 private View findViewByAccessibilityId(int accessibilityId) { 4954 View root = ViewRootImpl.this.mView; 4955 if (root == null) { 4956 return null; 4957 } 4958 View foundView = root.findViewByAccessibilityId(accessibilityId); 4959 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 4960 return null; 4961 } 4962 return foundView; 4963 } 4964 } 4965 4966 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4967 public volatile boolean mIsPending; 4968 4969 public void run() { 4970 if (mView != null) { 4971 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4972 mIsPending = false; 4973 } 4974 } 4975 } 4976} 4977