ViewRootImpl.java revision 3526b00a53a2582a51ff8b98ac1400a48f351107
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.PackageManager; 27import android.content.res.CompatibilityInfo; 28import android.content.res.Configuration; 29import android.content.res.Resources; 30import android.graphics.Canvas; 31import android.graphics.Paint; 32import android.graphics.PixelFormat; 33import android.graphics.Point; 34import android.graphics.PointF; 35import android.graphics.PorterDuff; 36import android.graphics.Rect; 37import android.graphics.Region; 38import android.media.AudioManager; 39import android.os.Binder; 40import android.os.Bundle; 41import android.os.Debug; 42import android.os.Handler; 43import android.os.LatencyTimer; 44import android.os.Looper; 45import android.os.Message; 46import android.os.ParcelFileDescriptor; 47import android.os.Process; 48import android.os.RemoteException; 49import android.os.SystemClock; 50import android.os.SystemProperties; 51import android.util.AndroidRuntimeException; 52import android.util.DisplayMetrics; 53import android.util.EventLog; 54import android.util.Log; 55import android.util.Pool; 56import android.util.Poolable; 57import android.util.PoolableManager; 58import android.util.Pools; 59import android.util.Slog; 60import android.util.SparseArray; 61import android.util.TypedValue; 62import android.view.View.MeasureSpec; 63import android.view.accessibility.AccessibilityEvent; 64import android.view.accessibility.AccessibilityInteractionClient; 65import android.view.accessibility.AccessibilityManager; 66import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 67import android.view.accessibility.AccessibilityNodeInfo; 68import android.view.accessibility.AccessibilityNodeProvider; 69import android.view.accessibility.IAccessibilityInteractionConnection; 70import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 71import android.view.animation.AccelerateDecelerateInterpolator; 72import android.view.animation.Interpolator; 73import android.view.inputmethod.InputConnection; 74import android.view.inputmethod.InputMethodManager; 75import android.widget.Scroller; 76 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.IInputMethodCallback; 80import com.android.internal.view.IInputMethodSession; 81import com.android.internal.view.RootViewSurfaceTaker; 82 83import java.io.IOException; 84import java.io.OutputStream; 85import java.io.PrintWriter; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.List; 89 90/** 91 * The top of a view hierarchy, implementing the needed protocol between View 92 * and the WindowManager. This is for the most part an internal implementation 93 * detail of {@link WindowManagerImpl}. 94 * 95 * {@hide} 96 */ 97@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 98public final class ViewRootImpl extends Handler implements ViewParent, 99 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 100 private static final String TAG = "ViewRootImpl"; 101 private static final boolean DBG = false; 102 private static final boolean LOCAL_LOGV = false; 103 /** @noinspection PointlessBooleanExpression*/ 104 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 105 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 106 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 107 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 108 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 110 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 111 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 112 private static final boolean DEBUG_FPS = false; 113 private static final boolean WATCH_POINTER = false; 114 115 /** 116 * Set this system property to true to force the view hierarchy to render 117 * at 60 Hz. This can be used to measure the potential framerate. 118 */ 119 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 120 121 private static final boolean MEASURE_LATENCY = false; 122 private static LatencyTimer lt; 123 124 /** 125 * Maximum time we allow the user to roll the trackball enough to generate 126 * a key event, before resetting the counters. 127 */ 128 static final int MAX_TRACKBALL_DELAY = 250; 129 130 static IWindowSession sWindowSession; 131 132 static final Object mStaticInit = new Object(); 133 static boolean mInitialized = false; 134 135 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 136 137 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 138 static boolean sFirstDrawComplete = false; 139 140 static final ArrayList<ComponentCallbacks> sConfigCallbacks 141 = new ArrayList<ComponentCallbacks>(); 142 143 long mLastTrackballTime = 0; 144 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 145 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 146 147 int mLastJoystickXDirection; 148 int mLastJoystickYDirection; 149 int mLastJoystickXKeyCode; 150 int mLastJoystickYKeyCode; 151 152 final int[] mTmpLocation = new int[2]; 153 154 final TypedValue mTmpValue = new TypedValue(); 155 156 final InputMethodCallback mInputMethodCallback; 157 final SparseArray<Object> mPendingEvents = new SparseArray<Object>(); 158 int mPendingEventSeq = 0; 159 160 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 int mViewVisibility; 176 boolean mAppVisible = true; 177 int mOrigWindowType = -1; 178 179 // Set to true if the owner of this window is in the stopped state, 180 // so the window should no longer be active. 181 boolean mStopped = false; 182 183 boolean mLastInCompatMode = false; 184 185 SurfaceHolder.Callback2 mSurfaceHolderCallback; 186 BaseSurfaceHolder mSurfaceHolder; 187 boolean mIsCreating; 188 boolean mDrawingAllowed; 189 190 final Region mTransparentRegion; 191 final Region mPreviousTransparentRegion; 192 193 int mWidth; 194 int mHeight; 195 Rect mDirty; 196 final Rect mCurrentDirty = new Rect(); 197 final Rect mPreviousDirty = new Rect(); 198 boolean mIsAnimating; 199 200 CompatibilityInfo.Translator mTranslator; 201 202 final View.AttachInfo mAttachInfo; 203 InputChannel mInputChannel; 204 InputQueue.Callback mInputQueueCallback; 205 InputQueue mInputQueue; 206 FallbackEventHandler mFallbackEventHandler; 207 208 final Rect mTempRect; // used in the transaction to not thrash the heap. 209 final Rect mVisRect; // used to retrieve visible rect of focused view. 210 211 boolean mTraversalScheduled; 212 long mLastTraversalFinishedTimeNanos; 213 long mLastDrawDurationNanos; 214 boolean mWillDrawSoon; 215 boolean mLayoutRequested; 216 boolean mFirst; 217 boolean mReportNextDraw; 218 boolean mFullRedrawNeeded; 219 boolean mNewSurfaceNeeded; 220 boolean mHasHadWindowFocus; 221 boolean mLastWasImTarget; 222 InputEventMessage mPendingInputEvents = null; 223 224 boolean mWindowAttributesChanged = false; 225 int mWindowAttributesChangesFlag = 0; 226 227 // These can be accessed by any thread, must be protected with a lock. 228 // Surface can never be reassigned or cleared (use Surface.clear()). 229 private final Surface mSurface = new Surface(); 230 231 boolean mAdded; 232 boolean mAddedTouchMode; 233 234 CompatibilityInfoHolder mCompatibilityInfo; 235 236 /*package*/ int mAddNesting; 237 238 // These are accessed by multiple threads. 239 final Rect mWinFrame; // frame given by window manager. 240 241 final Rect mPendingVisibleInsets = new Rect(); 242 final Rect mPendingContentInsets = new Rect(); 243 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 244 = new ViewTreeObserver.InternalInsetsInfo(); 245 246 final Configuration mLastConfiguration = new Configuration(); 247 final Configuration mPendingConfiguration = new Configuration(); 248 249 class ResizedInfo { 250 Rect coveredInsets; 251 Rect visibleInsets; 252 Configuration newConfig; 253 } 254 255 boolean mScrollMayChange; 256 int mSoftInputMode; 257 View mLastScrolledFocus; 258 int mScrollY; 259 int mCurScrollY; 260 Scroller mScroller; 261 HardwareLayer mResizeBuffer; 262 long mResizeBufferStartTime; 263 int mResizeBufferDuration; 264 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 265 private ArrayList<LayoutTransition> mPendingTransitions; 266 267 final ViewConfiguration mViewConfiguration; 268 269 /* Drag/drop */ 270 ClipDescription mDragDescription; 271 View mCurrentDragView; 272 volatile Object mLocalDragState; 273 final PointF mDragPoint = new PointF(); 274 final PointF mLastTouchPoint = new PointF(); 275 276 private boolean mProfileRendering; 277 private Thread mRenderProfiler; 278 private volatile boolean mRenderProfilingEnabled; 279 280 // Variables to track frames per second, enabled via DEBUG_FPS flag 281 private long mFpsStartTime = -1; 282 private long mFpsPrevTime = -1; 283 private int mFpsNumFrames; 284 285 /** 286 * see {@link #playSoundEffect(int)} 287 */ 288 AudioManager mAudioManager; 289 290 final AccessibilityManager mAccessibilityManager; 291 292 AccessibilityInteractionController mAccessibilityInteractionController; 293 294 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 295 296 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 297 298 private final int mDensity; 299 300 /** 301 * Consistency verifier for debugging purposes. 302 */ 303 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 304 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 305 new InputEventConsistencyVerifier(this, 0) : null; 306 307 public static IWindowSession getWindowSession(Looper mainLooper) { 308 synchronized (mStaticInit) { 309 if (!mInitialized) { 310 try { 311 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 312 sWindowSession = Display.getWindowManager().openSession( 313 imm.getClient(), imm.getInputContext()); 314 mInitialized = true; 315 } catch (RemoteException e) { 316 } 317 } 318 return sWindowSession; 319 } 320 } 321 322 static final class SystemUiVisibilityInfo { 323 int seq; 324 int globalVisibility; 325 int localValue; 326 int localChanges; 327 } 328 329 public ViewRootImpl(Context context) { 330 super(); 331 332 if (MEASURE_LATENCY) { 333 if (lt == null) { 334 lt = new LatencyTimer(100, 1000); 335 } 336 } 337 338 // Initialize the statics when this class is first instantiated. This is 339 // done here instead of in the static block because Zygote does not 340 // allow the spawning of threads. 341 getWindowSession(context.getMainLooper()); 342 343 mThread = Thread.currentThread(); 344 mLocation = new WindowLeaked(null); 345 mLocation.fillInStackTrace(); 346 mWidth = -1; 347 mHeight = -1; 348 mDirty = new Rect(); 349 mTempRect = new Rect(); 350 mVisRect = new Rect(); 351 mWinFrame = new Rect(); 352 mWindow = new W(this); 353 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 354 mInputMethodCallback = new InputMethodCallback(this); 355 mViewVisibility = View.GONE; 356 mTransparentRegion = new Region(); 357 mPreviousTransparentRegion = new Region(); 358 mFirst = true; // true for the first time the view is added 359 mAdded = false; 360 mAccessibilityManager = AccessibilityManager.getInstance(context); 361 mAccessibilityInteractionConnectionManager = 362 new AccessibilityInteractionConnectionManager(); 363 mAccessibilityManager.addAccessibilityStateChangeListener( 364 mAccessibilityInteractionConnectionManager); 365 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, this); 366 mViewConfiguration = ViewConfiguration.get(context); 367 mDensity = context.getResources().getDisplayMetrics().densityDpi; 368 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 369 mProfileRendering = Boolean.parseBoolean( 370 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 371 } 372 373 public static void addFirstDrawHandler(Runnable callback) { 374 synchronized (sFirstDrawHandlers) { 375 if (!sFirstDrawComplete) { 376 sFirstDrawHandlers.add(callback); 377 } 378 } 379 } 380 381 public static void addConfigCallback(ComponentCallbacks callback) { 382 synchronized (sConfigCallbacks) { 383 sConfigCallbacks.add(callback); 384 } 385 } 386 387 // FIXME for perf testing only 388 private boolean mProfile = false; 389 390 /** 391 * Call this to profile the next traversal call. 392 * FIXME for perf testing only. Remove eventually 393 */ 394 public void profile() { 395 mProfile = true; 396 } 397 398 /** 399 * Indicates whether we are in touch mode. Calling this method triggers an IPC 400 * call and should be avoided whenever possible. 401 * 402 * @return True, if the device is in touch mode, false otherwise. 403 * 404 * @hide 405 */ 406 static boolean isInTouchMode() { 407 if (mInitialized) { 408 try { 409 return sWindowSession.getInTouchMode(); 410 } catch (RemoteException e) { 411 } 412 } 413 return false; 414 } 415 416 /** 417 * We have one child 418 */ 419 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 420 synchronized (this) { 421 if (mView == null) { 422 mView = view; 423 mFallbackEventHandler.setView(view); 424 mWindowAttributes.copyFrom(attrs); 425 attrs = mWindowAttributes; 426 427 if (view instanceof RootViewSurfaceTaker) { 428 mSurfaceHolderCallback = 429 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 430 if (mSurfaceHolderCallback != null) { 431 mSurfaceHolder = new TakenSurfaceHolder(); 432 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 433 } 434 } 435 436 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 437 mTranslator = compatibilityInfo.getTranslator(); 438 439 // If the application owns the surface, don't enable hardware acceleration 440 if (mSurfaceHolder == null) { 441 enableHardwareAcceleration(attrs); 442 } 443 444 boolean restore = false; 445 if (mTranslator != null) { 446 mSurface.setCompatibilityTranslator(mTranslator); 447 restore = true; 448 attrs.backup(); 449 mTranslator.translateWindowLayout(attrs); 450 } 451 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 452 453 if (!compatibilityInfo.supportsScreen()) { 454 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 455 mLastInCompatMode = true; 456 } 457 458 mSoftInputMode = attrs.softInputMode; 459 mWindowAttributesChanged = true; 460 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 461 mAttachInfo.mRootView = view; 462 mAttachInfo.mScalingRequired = mTranslator != null; 463 mAttachInfo.mApplicationScale = 464 mTranslator == null ? 1.0f : mTranslator.applicationScale; 465 if (panelParentView != null) { 466 mAttachInfo.mPanelParentWindowToken 467 = panelParentView.getApplicationWindowToken(); 468 } 469 mAdded = true; 470 int res; /* = WindowManagerImpl.ADD_OKAY; */ 471 472 // Schedule the first layout -before- adding to the window 473 // manager, to make sure we do the relayout before receiving 474 // any other events from the system. 475 requestLayout(); 476 if ((mWindowAttributes.inputFeatures 477 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 478 mInputChannel = new InputChannel(); 479 } 480 try { 481 mOrigWindowType = mWindowAttributes.type; 482 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 483 getHostVisibility(), mAttachInfo.mContentInsets, 484 mInputChannel); 485 } catch (RemoteException e) { 486 mAdded = false; 487 mView = null; 488 mAttachInfo.mRootView = null; 489 mInputChannel = null; 490 mFallbackEventHandler.setView(null); 491 unscheduleTraversals(); 492 throw new RuntimeException("Adding window failed", e); 493 } finally { 494 if (restore) { 495 attrs.restore(); 496 } 497 } 498 499 if (mTranslator != null) { 500 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 501 } 502 mPendingContentInsets.set(mAttachInfo.mContentInsets); 503 mPendingVisibleInsets.set(0, 0, 0, 0); 504 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 505 if (res < WindowManagerImpl.ADD_OKAY) { 506 mView = null; 507 mAttachInfo.mRootView = null; 508 mAdded = false; 509 mFallbackEventHandler.setView(null); 510 unscheduleTraversals(); 511 switch (res) { 512 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 513 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 514 throw new WindowManagerImpl.BadTokenException( 515 "Unable to add window -- token " + attrs.token 516 + " is not valid; is your activity running?"); 517 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 518 throw new WindowManagerImpl.BadTokenException( 519 "Unable to add window -- token " + attrs.token 520 + " is not for an application"); 521 case WindowManagerImpl.ADD_APP_EXITING: 522 throw new WindowManagerImpl.BadTokenException( 523 "Unable to add window -- app for token " + attrs.token 524 + " is exiting"); 525 case WindowManagerImpl.ADD_DUPLICATE_ADD: 526 throw new WindowManagerImpl.BadTokenException( 527 "Unable to add window -- window " + mWindow 528 + " has already been added"); 529 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 530 // Silently ignore -- we would have just removed it 531 // right away, anyway. 532 return; 533 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 534 throw new WindowManagerImpl.BadTokenException( 535 "Unable to add window " + mWindow + 536 " -- another window of this type already exists"); 537 case WindowManagerImpl.ADD_PERMISSION_DENIED: 538 throw new WindowManagerImpl.BadTokenException( 539 "Unable to add window " + mWindow + 540 " -- permission denied for this window type"); 541 } 542 throw new RuntimeException( 543 "Unable to add window -- unknown error code " + res); 544 } 545 546 if (view instanceof RootViewSurfaceTaker) { 547 mInputQueueCallback = 548 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 549 } 550 if (mInputChannel != null) { 551 if (mInputQueueCallback != null) { 552 mInputQueue = new InputQueue(mInputChannel); 553 mInputQueueCallback.onInputQueueCreated(mInputQueue); 554 } else { 555 InputQueue.registerInputChannel(mInputChannel, mInputHandler, 556 Looper.myQueue()); 557 } 558 } 559 560 view.assignParent(this); 561 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 562 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 563 564 if (mAccessibilityManager.isEnabled()) { 565 mAccessibilityInteractionConnectionManager.ensureConnection(); 566 } 567 } 568 } 569 } 570 571 void destroyHardwareResources() { 572 if (mAttachInfo.mHardwareRenderer != null) { 573 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 574 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 575 } 576 mAttachInfo.mHardwareRenderer.destroy(false); 577 } 578 } 579 580 void terminateHardwareResources() { 581 if (mAttachInfo.mHardwareRenderer != null) { 582 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 583 mAttachInfo.mHardwareRenderer.destroy(false); 584 } 585 } 586 587 void destroyHardwareLayers() { 588 if (mThread != Thread.currentThread()) { 589 if (mAttachInfo.mHardwareRenderer != null && 590 mAttachInfo.mHardwareRenderer.isEnabled()) { 591 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 592 } 593 } else { 594 if (mAttachInfo.mHardwareRenderer != null && 595 mAttachInfo.mHardwareRenderer.isEnabled()) { 596 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 597 } 598 } 599 } 600 601 private void enableHardwareAcceleration(WindowManager.LayoutParams attrs) { 602 mAttachInfo.mHardwareAccelerated = false; 603 mAttachInfo.mHardwareAccelerationRequested = false; 604 605 // Don't enable hardware acceleration when the application is in compatibility mode 606 if (mTranslator != null) return; 607 608 // Try to enable hardware acceleration if requested 609 final boolean hardwareAccelerated = 610 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 611 612 if (hardwareAccelerated) { 613 if (!HardwareRenderer.isAvailable()) { 614 return; 615 } 616 617 // Persistent processes (including the system) should not do 618 // accelerated rendering on low-end devices. In that case, 619 // sRendererDisabled will be set. In addition, the system process 620 // itself should never do accelerated rendering. In that case, both 621 // sRendererDisabled and sSystemRendererDisabled are set. When 622 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 623 // can be used by code on the system process to escape that and enable 624 // HW accelerated drawing. (This is basically for the lock screen.) 625 626 final boolean fakeHwAccelerated = (attrs.privateFlags & 627 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 628 final boolean forceHwAccelerated = (attrs.privateFlags & 629 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 630 631 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 632 && forceHwAccelerated)) { 633 // Don't enable hardware acceleration when we're not on the main thread 634 if (!HardwareRenderer.sSystemRendererDisabled 635 && Looper.getMainLooper() != Looper.myLooper()) { 636 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 637 + "acceleration outside of the main thread, aborting"); 638 return; 639 } 640 641 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 642 if (mAttachInfo.mHardwareRenderer != null) { 643 mAttachInfo.mHardwareRenderer.destroy(true); 644 } 645 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 646 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 647 = mAttachInfo.mHardwareRenderer != null; 648 } else if (fakeHwAccelerated) { 649 // The window had wanted to use hardware acceleration, but this 650 // is not allowed in its process. By setting this flag, it can 651 // still render as if it was accelerated. This is basically for 652 // the preview windows the window manager shows for launching 653 // applications, so they will look more like the app being launched. 654 mAttachInfo.mHardwareAccelerationRequested = true; 655 } 656 } 657 } 658 659 public View getView() { 660 return mView; 661 } 662 663 final WindowLeaked getLocation() { 664 return mLocation; 665 } 666 667 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 668 synchronized (this) { 669 int oldSoftInputMode = mWindowAttributes.softInputMode; 670 // preserve compatible window flag if exists. 671 int compatibleWindowFlag = 672 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 673 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 674 mWindowAttributes.flags |= compatibleWindowFlag; 675 676 if (newView) { 677 mSoftInputMode = attrs.softInputMode; 678 requestLayout(); 679 } 680 // Don't lose the mode we last auto-computed. 681 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 682 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 683 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 684 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 685 | (oldSoftInputMode 686 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 687 } 688 mWindowAttributesChanged = true; 689 scheduleTraversals(); 690 } 691 } 692 693 void handleAppVisibility(boolean visible) { 694 if (mAppVisible != visible) { 695 mAppVisible = visible; 696 scheduleTraversals(); 697 } 698 } 699 700 void handleGetNewSurface() { 701 mNewSurfaceNeeded = true; 702 mFullRedrawNeeded = true; 703 scheduleTraversals(); 704 } 705 706 /** 707 * {@inheritDoc} 708 */ 709 public void requestLayout() { 710 checkThread(); 711 mLayoutRequested = true; 712 scheduleTraversals(); 713 } 714 715 /** 716 * {@inheritDoc} 717 */ 718 public boolean isLayoutRequested() { 719 return mLayoutRequested; 720 } 721 722 public void invalidateChild(View child, Rect dirty) { 723 checkThread(); 724 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 725 if (dirty == null) { 726 // Fast invalidation for GL-enabled applications; GL must redraw everything 727 invalidate(); 728 return; 729 } 730 if (mCurScrollY != 0 || mTranslator != null) { 731 mTempRect.set(dirty); 732 dirty = mTempRect; 733 if (mCurScrollY != 0) { 734 dirty.offset(0, -mCurScrollY); 735 } 736 if (mTranslator != null) { 737 mTranslator.translateRectInAppWindowToScreen(dirty); 738 } 739 if (mAttachInfo.mScalingRequired) { 740 dirty.inset(-1, -1); 741 } 742 } 743 if (!mDirty.isEmpty() && !mDirty.contains(dirty)) { 744 mAttachInfo.mSetIgnoreDirtyState = true; 745 mAttachInfo.mIgnoreDirtyState = true; 746 } 747 mDirty.union(dirty); 748 if (!mWillDrawSoon) { 749 scheduleTraversals(); 750 } 751 } 752 753 void invalidate() { 754 mDirty.set(0, 0, mWidth, mHeight); 755 scheduleTraversals(); 756 } 757 758 void setStopped(boolean stopped) { 759 if (mStopped != stopped) { 760 mStopped = stopped; 761 if (!stopped) { 762 scheduleTraversals(); 763 } 764 } 765 } 766 767 public ViewParent getParent() { 768 return null; 769 } 770 771 public ViewParent invalidateChildInParent(final int[] location, final Rect dirty) { 772 invalidateChild(null, dirty); 773 return null; 774 } 775 776 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 777 if (child != mView) { 778 throw new RuntimeException("child is not mine, honest!"); 779 } 780 // Note: don't apply scroll offset, because we want to know its 781 // visibility in the virtual canvas being given to the view hierarchy. 782 return r.intersect(0, 0, mWidth, mHeight); 783 } 784 785 public void bringChildToFront(View child) { 786 } 787 788 public void scheduleTraversals() { 789 if (!mTraversalScheduled) { 790 mTraversalScheduled = true; 791 792 //noinspection ConstantConditions 793 if (ViewDebug.DEBUG_LATENCY && mLastTraversalFinishedTimeNanos != 0) { 794 final long now = System.nanoTime(); 795 Log.d(TAG, "Latency: Scheduled traversal, it has been " 796 + ((now - mLastTraversalFinishedTimeNanos) * 0.000001f) 797 + "ms since the last traversal finished."); 798 } 799 800 sendEmptyMessage(DO_TRAVERSAL); 801 } 802 } 803 804 public void unscheduleTraversals() { 805 if (mTraversalScheduled) { 806 mTraversalScheduled = false; 807 removeMessages(DO_TRAVERSAL); 808 } 809 } 810 811 int getHostVisibility() { 812 return mAppVisible ? mView.getVisibility() : View.GONE; 813 } 814 815 void disposeResizeBuffer() { 816 if (mResizeBuffer != null) { 817 mResizeBuffer.destroy(); 818 mResizeBuffer = null; 819 } 820 } 821 822 /** 823 * Add LayoutTransition to the list of transitions to be started in the next traversal. 824 * This list will be cleared after the transitions on the list are start()'ed. These 825 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 826 * happens during the layout phase of traversal, which we want to complete before any of the 827 * animations are started (because those animations may side-effect properties that layout 828 * depends upon, like the bounding rectangles of the affected views). So we add the transition 829 * to the list and it is started just prior to starting the drawing phase of traversal. 830 * 831 * @param transition The LayoutTransition to be started on the next traversal. 832 * 833 * @hide 834 */ 835 public void requestTransitionStart(LayoutTransition transition) { 836 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 837 if (mPendingTransitions == null) { 838 mPendingTransitions = new ArrayList<LayoutTransition>(); 839 } 840 mPendingTransitions.add(transition); 841 } 842 } 843 844 private void processInputEvents(boolean outOfOrder) { 845 while (mPendingInputEvents != null) { 846 handleMessage(mPendingInputEvents.mMessage); 847 InputEventMessage tmpMessage = mPendingInputEvents; 848 mPendingInputEvents = mPendingInputEvents.mNext; 849 tmpMessage.recycle(); 850 if (outOfOrder) { 851 removeMessages(PROCESS_INPUT_EVENTS); 852 } 853 } 854 } 855 856 private void performTraversals() { 857 // cache mView since it is used so much below... 858 final View host = mView; 859 860 processInputEvents(true); 861 862 if (DBG) { 863 System.out.println("======================================"); 864 System.out.println("performTraversals"); 865 host.debug(); 866 } 867 868 if (host == null || !mAdded) 869 return; 870 871 mTraversalScheduled = false; 872 mWillDrawSoon = true; 873 boolean windowSizeMayChange = false; 874 boolean fullRedrawNeeded = mFullRedrawNeeded; 875 boolean newSurface = false; 876 boolean surfaceChanged = false; 877 WindowManager.LayoutParams lp = mWindowAttributes; 878 879 int desiredWindowWidth; 880 int desiredWindowHeight; 881 int childWidthMeasureSpec; 882 int childHeightMeasureSpec; 883 884 final View.AttachInfo attachInfo = mAttachInfo; 885 886 final int viewVisibility = getHostVisibility(); 887 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 888 || mNewSurfaceNeeded; 889 890 WindowManager.LayoutParams params = null; 891 if (mWindowAttributesChanged) { 892 mWindowAttributesChanged = false; 893 surfaceChanged = true; 894 params = lp; 895 } 896 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 897 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 898 params = lp; 899 fullRedrawNeeded = true; 900 mLayoutRequested = true; 901 if (mLastInCompatMode) { 902 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 903 mLastInCompatMode = false; 904 } else { 905 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 906 mLastInCompatMode = true; 907 } 908 } 909 910 mWindowAttributesChangesFlag = 0; 911 912 Rect frame = mWinFrame; 913 if (mFirst) { 914 fullRedrawNeeded = true; 915 mLayoutRequested = true; 916 917 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 918 // NOTE -- system code, won't try to do compat mode. 919 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 920 Point size = new Point(); 921 disp.getRealSize(size); 922 desiredWindowWidth = size.x; 923 desiredWindowHeight = size.y; 924 } else { 925 DisplayMetrics packageMetrics = 926 mView.getContext().getResources().getDisplayMetrics(); 927 desiredWindowWidth = packageMetrics.widthPixels; 928 desiredWindowHeight = packageMetrics.heightPixels; 929 } 930 931 // For the very first time, tell the view hierarchy that it 932 // is attached to the window. Note that at this point the surface 933 // object is not initialized to its backing store, but soon it 934 // will be (assuming the window is visible). 935 attachInfo.mSurface = mSurface; 936 // We used to use the following condition to choose 32 bits drawing caches: 937 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 938 // However, windows are now always 32 bits by default, so choose 32 bits 939 attachInfo.mUse32BitDrawingCache = true; 940 attachInfo.mHasWindowFocus = false; 941 attachInfo.mWindowVisibility = viewVisibility; 942 attachInfo.mRecomputeGlobalAttributes = false; 943 attachInfo.mKeepScreenOn = false; 944 attachInfo.mSystemUiVisibility = 0; 945 viewVisibilityChanged = false; 946 mLastConfiguration.setTo(host.getResources().getConfiguration()); 947 host.dispatchAttachedToWindow(attachInfo, 0); 948 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 949 950 host.fitSystemWindows(mAttachInfo.mContentInsets); 951 952 } else { 953 desiredWindowWidth = frame.width(); 954 desiredWindowHeight = frame.height(); 955 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 956 if (DEBUG_ORIENTATION) Log.v(TAG, 957 "View " + host + " resized to: " + frame); 958 fullRedrawNeeded = true; 959 mLayoutRequested = true; 960 windowSizeMayChange = true; 961 } 962 } 963 964 if (viewVisibilityChanged) { 965 attachInfo.mWindowVisibility = viewVisibility; 966 host.dispatchWindowVisibilityChanged(viewVisibility); 967 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 968 destroyHardwareResources(); 969 } 970 if (viewVisibility == View.GONE) { 971 // After making a window gone, we will count it as being 972 // shown for the first time the next time it gets focus. 973 mHasHadWindowFocus = false; 974 } 975 } 976 977 boolean insetsChanged = false; 978 979 if (mLayoutRequested && !mStopped) { 980 // Execute enqueued actions on every layout in case a view that was detached 981 // enqueued an action after being detached 982 getRunQueue().executeActions(attachInfo.mHandler); 983 984 final Resources res = mView.getContext().getResources(); 985 986 if (mFirst) { 987 // make sure touch mode code executes by setting cached value 988 // to opposite of the added touch mode. 989 mAttachInfo.mInTouchMode = !mAddedTouchMode; 990 ensureTouchModeLocally(mAddedTouchMode); 991 } else { 992 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 993 insetsChanged = true; 994 } 995 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 996 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 997 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 998 + mAttachInfo.mVisibleInsets); 999 } 1000 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1001 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1002 windowSizeMayChange = true; 1003 1004 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1005 // NOTE -- system code, won't try to do compat mode. 1006 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1007 Point size = new Point(); 1008 disp.getRealSize(size); 1009 desiredWindowWidth = size.x; 1010 desiredWindowHeight = size.y; 1011 } else { 1012 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1013 desiredWindowWidth = packageMetrics.widthPixels; 1014 desiredWindowHeight = packageMetrics.heightPixels; 1015 } 1016 } 1017 } 1018 1019 // Ask host how big it wants to be 1020 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1021 "Measuring " + host + " in display " + desiredWindowWidth 1022 + "x" + desiredWindowHeight + "..."); 1023 1024 boolean goodMeasure = false; 1025 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1026 // On large screens, we don't want to allow dialogs to just 1027 // stretch to fill the entire width of the screen to display 1028 // one line of text. First try doing the layout at a smaller 1029 // size to see if it will fit. 1030 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1031 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1032 int baseSize = 0; 1033 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1034 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1035 } 1036 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1037 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1038 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1039 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1040 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1041 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1042 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1043 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1044 goodMeasure = true; 1045 } else { 1046 // Didn't fit in that size... try expanding a bit. 1047 baseSize = (baseSize+desiredWindowWidth)/2; 1048 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1049 + baseSize); 1050 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1051 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1052 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1053 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1054 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1055 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1056 goodMeasure = true; 1057 } 1058 } 1059 } 1060 } 1061 1062 if (!goodMeasure) { 1063 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1064 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1065 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1066 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1067 windowSizeMayChange = true; 1068 } 1069 } 1070 1071 if (DBG) { 1072 System.out.println("======================================"); 1073 System.out.println("performTraversals -- after measure"); 1074 host.debug(); 1075 } 1076 } 1077 1078 if (attachInfo.mRecomputeGlobalAttributes && host.mAttachInfo != null) { 1079 //Log.i(TAG, "Computing view hierarchy attributes!"); 1080 attachInfo.mRecomputeGlobalAttributes = false; 1081 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1082 int oldVis = attachInfo.mSystemUiVisibility; 1083 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1084 attachInfo.mKeepScreenOn = false; 1085 attachInfo.mSystemUiVisibility = 0; 1086 attachInfo.mHasSystemUiListeners = false; 1087 host.dispatchCollectViewAttributes(0); 1088 if (attachInfo.mKeepScreenOn != oldScreenOn 1089 || attachInfo.mSystemUiVisibility != oldVis 1090 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1091 params = lp; 1092 } 1093 } 1094 if (attachInfo.mForceReportNewAttributes) { 1095 attachInfo.mForceReportNewAttributes = false; 1096 params = lp; 1097 } 1098 1099 if (mFirst || attachInfo.mViewVisibilityChanged) { 1100 attachInfo.mViewVisibilityChanged = false; 1101 int resizeMode = mSoftInputMode & 1102 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1103 // If we are in auto resize mode, then we need to determine 1104 // what mode to use now. 1105 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1106 final int N = attachInfo.mScrollContainers.size(); 1107 for (int i=0; i<N; i++) { 1108 if (attachInfo.mScrollContainers.get(i).isShown()) { 1109 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1110 } 1111 } 1112 if (resizeMode == 0) { 1113 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1114 } 1115 if ((lp.softInputMode & 1116 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1117 lp.softInputMode = (lp.softInputMode & 1118 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1119 resizeMode; 1120 params = lp; 1121 } 1122 } 1123 } 1124 1125 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1126 if (!PixelFormat.formatHasAlpha(params.format)) { 1127 params.format = PixelFormat.TRANSLUCENT; 1128 } 1129 } 1130 1131 boolean windowShouldResize = mLayoutRequested && windowSizeMayChange 1132 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1133 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1134 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1135 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1136 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1137 1138 final boolean computesInternalInsets = 1139 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1140 1141 boolean insetsPending = false; 1142 int relayoutResult = 0; 1143 1144 if (mFirst || windowShouldResize || insetsChanged || 1145 viewVisibilityChanged || params != null) { 1146 1147 if (viewVisibility == View.VISIBLE) { 1148 // If this window is giving internal insets to the window 1149 // manager, and it is being added or changing its visibility, 1150 // then we want to first give the window manager "fake" 1151 // insets to cause it to effectively ignore the content of 1152 // the window during layout. This avoids it briefly causing 1153 // other windows to resize/move based on the raw frame of the 1154 // window, waiting until we can finish laying out this window 1155 // and get back to the window manager with the ultimately 1156 // computed insets. 1157 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1158 } 1159 1160 if (mSurfaceHolder != null) { 1161 mSurfaceHolder.mSurfaceLock.lock(); 1162 mDrawingAllowed = true; 1163 } 1164 1165 boolean hwInitialized = false; 1166 boolean contentInsetsChanged = false; 1167 boolean visibleInsetsChanged; 1168 boolean hadSurface = mSurface.isValid(); 1169 1170 try { 1171 int fl = 0; 1172 if (params != null) { 1173 fl = params.flags; 1174 if (attachInfo.mKeepScreenOn) { 1175 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1176 } 1177 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1178 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1179 } 1180 if (DEBUG_LAYOUT) { 1181 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1182 host.getMeasuredHeight() + ", params=" + params); 1183 } 1184 1185 final int surfaceGenerationId = mSurface.getGenerationId(); 1186 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1187 1188 if (params != null) { 1189 params.flags = fl; 1190 } 1191 1192 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1193 + " content=" + mPendingContentInsets.toShortString() 1194 + " visible=" + mPendingVisibleInsets.toShortString() 1195 + " surface=" + mSurface); 1196 1197 if (mPendingConfiguration.seq != 0) { 1198 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1199 + mPendingConfiguration); 1200 updateConfiguration(mPendingConfiguration, !mFirst); 1201 mPendingConfiguration.seq = 0; 1202 } 1203 1204 contentInsetsChanged = !mPendingContentInsets.equals( 1205 mAttachInfo.mContentInsets); 1206 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1207 mAttachInfo.mVisibleInsets); 1208 if (contentInsetsChanged) { 1209 if (mWidth > 0 && mHeight > 0 && 1210 mSurface != null && mSurface.isValid() && 1211 !mAttachInfo.mTurnOffWindowResizeAnim && 1212 mAttachInfo.mHardwareRenderer != null && 1213 mAttachInfo.mHardwareRenderer.isEnabled() && 1214 mAttachInfo.mHardwareRenderer.validate() && 1215 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1216 1217 disposeResizeBuffer(); 1218 1219 boolean completed = false; 1220 HardwareCanvas canvas = null; 1221 try { 1222 if (mResizeBuffer == null) { 1223 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1224 mWidth, mHeight, false); 1225 } else if (mResizeBuffer.getWidth() != mWidth || 1226 mResizeBuffer.getHeight() != mHeight) { 1227 mResizeBuffer.resize(mWidth, mHeight); 1228 } 1229 canvas = mResizeBuffer.start(mAttachInfo.mHardwareCanvas); 1230 canvas.setViewport(mWidth, mHeight); 1231 canvas.onPreDraw(null); 1232 final int restoreCount = canvas.save(); 1233 1234 canvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1235 1236 int yoff; 1237 final boolean scrolling = mScroller != null 1238 && mScroller.computeScrollOffset(); 1239 if (scrolling) { 1240 yoff = mScroller.getCurrY(); 1241 mScroller.abortAnimation(); 1242 } else { 1243 yoff = mScrollY; 1244 } 1245 1246 canvas.translate(0, -yoff); 1247 if (mTranslator != null) { 1248 mTranslator.translateCanvas(canvas); 1249 } 1250 1251 mView.draw(canvas); 1252 1253 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1254 mResizeBufferDuration = mView.getResources().getInteger( 1255 com.android.internal.R.integer.config_mediumAnimTime); 1256 completed = true; 1257 1258 canvas.restoreToCount(restoreCount); 1259 } catch (OutOfMemoryError e) { 1260 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1261 } finally { 1262 if (canvas != null) { 1263 canvas.onPostDraw(); 1264 } 1265 if (mResizeBuffer != null) { 1266 mResizeBuffer.end(mAttachInfo.mHardwareCanvas); 1267 if (!completed) { 1268 mResizeBuffer.destroy(); 1269 mResizeBuffer = null; 1270 } 1271 } 1272 } 1273 } 1274 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1275 host.fitSystemWindows(mAttachInfo.mContentInsets); 1276 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1277 + mAttachInfo.mContentInsets); 1278 } 1279 if (visibleInsetsChanged) { 1280 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1281 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1282 + mAttachInfo.mVisibleInsets); 1283 } 1284 1285 if (!hadSurface) { 1286 if (mSurface.isValid()) { 1287 // If we are creating a new surface, then we need to 1288 // completely redraw it. Also, when we get to the 1289 // point of drawing it we will hold off and schedule 1290 // a new traversal instead. This is so we can tell the 1291 // window manager about all of the windows being displayed 1292 // before actually drawing them, so it can display then 1293 // all at once. 1294 newSurface = true; 1295 fullRedrawNeeded = true; 1296 mPreviousTransparentRegion.setEmpty(); 1297 1298 if (mAttachInfo.mHardwareRenderer != null) { 1299 try { 1300 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1301 } catch (Surface.OutOfResourcesException e) { 1302 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1303 try { 1304 if (!sWindowSession.outOfMemory(mWindow)) { 1305 Slog.w(TAG, "No processes killed for memory; killing self"); 1306 Process.killProcess(Process.myPid()); 1307 } 1308 } catch (RemoteException ex) { 1309 } 1310 mLayoutRequested = true; // ask wm for a new surface next time. 1311 return; 1312 } 1313 } 1314 } 1315 } else if (!mSurface.isValid()) { 1316 // If the surface has been removed, then reset the scroll 1317 // positions. 1318 mLastScrolledFocus = null; 1319 mScrollY = mCurScrollY = 0; 1320 if (mScroller != null) { 1321 mScroller.abortAnimation(); 1322 } 1323 disposeResizeBuffer(); 1324 // Our surface is gone 1325 if (mAttachInfo.mHardwareRenderer != null && 1326 mAttachInfo.mHardwareRenderer.isEnabled()) { 1327 mAttachInfo.mHardwareRenderer.destroy(true); 1328 } 1329 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1330 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1331 fullRedrawNeeded = true; 1332 try { 1333 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1334 } catch (Surface.OutOfResourcesException e) { 1335 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1336 try { 1337 if (!sWindowSession.outOfMemory(mWindow)) { 1338 Slog.w(TAG, "No processes killed for memory; killing self"); 1339 Process.killProcess(Process.myPid()); 1340 } 1341 } catch (RemoteException ex) { 1342 } 1343 mLayoutRequested = true; // ask wm for a new surface next time. 1344 return; 1345 } 1346 } 1347 } catch (RemoteException e) { 1348 } 1349 1350 if (DEBUG_ORIENTATION) Log.v( 1351 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1352 1353 attachInfo.mWindowLeft = frame.left; 1354 attachInfo.mWindowTop = frame.top; 1355 1356 // !!FIXME!! This next section handles the case where we did not get the 1357 // window size we asked for. We should avoid this by getting a maximum size from 1358 // the window session beforehand. 1359 mWidth = frame.width(); 1360 mHeight = frame.height(); 1361 1362 if (mSurfaceHolder != null) { 1363 // The app owns the surface; tell it about what is going on. 1364 if (mSurface.isValid()) { 1365 // XXX .copyFrom() doesn't work! 1366 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1367 mSurfaceHolder.mSurface = mSurface; 1368 } 1369 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1370 mSurfaceHolder.mSurfaceLock.unlock(); 1371 if (mSurface.isValid()) { 1372 if (!hadSurface) { 1373 mSurfaceHolder.ungetCallbacks(); 1374 1375 mIsCreating = true; 1376 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1377 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1378 if (callbacks != null) { 1379 for (SurfaceHolder.Callback c : callbacks) { 1380 c.surfaceCreated(mSurfaceHolder); 1381 } 1382 } 1383 surfaceChanged = true; 1384 } 1385 if (surfaceChanged) { 1386 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1387 lp.format, mWidth, mHeight); 1388 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1389 if (callbacks != null) { 1390 for (SurfaceHolder.Callback c : callbacks) { 1391 c.surfaceChanged(mSurfaceHolder, lp.format, 1392 mWidth, mHeight); 1393 } 1394 } 1395 } 1396 mIsCreating = false; 1397 } else if (hadSurface) { 1398 mSurfaceHolder.ungetCallbacks(); 1399 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1400 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1401 if (callbacks != null) { 1402 for (SurfaceHolder.Callback c : callbacks) { 1403 c.surfaceDestroyed(mSurfaceHolder); 1404 } 1405 } 1406 mSurfaceHolder.mSurfaceLock.lock(); 1407 try { 1408 mSurfaceHolder.mSurface = new Surface(); 1409 } finally { 1410 mSurfaceHolder.mSurfaceLock.unlock(); 1411 } 1412 } 1413 } 1414 1415 if (mAttachInfo.mHardwareRenderer != null && 1416 mAttachInfo.mHardwareRenderer.isEnabled()) { 1417 if (hwInitialized || windowShouldResize || 1418 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1419 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1420 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1421 if (!hwInitialized) { 1422 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1423 } 1424 } 1425 } 1426 1427 if (!mStopped) { 1428 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1429 (relayoutResult&WindowManagerImpl.RELAYOUT_IN_TOUCH_MODE) != 0); 1430 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1431 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1432 childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1433 childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1434 1435 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1436 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1437 + " mHeight=" + mHeight 1438 + " measuredHeight=" + host.getMeasuredHeight() 1439 + " coveredInsetsChanged=" + contentInsetsChanged); 1440 1441 // Ask host how big it wants to be 1442 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1443 1444 // Implementation of weights from WindowManager.LayoutParams 1445 // We just grow the dimensions as needed and re-measure if 1446 // needs be 1447 int width = host.getMeasuredWidth(); 1448 int height = host.getMeasuredHeight(); 1449 boolean measureAgain = false; 1450 1451 if (lp.horizontalWeight > 0.0f) { 1452 width += (int) ((mWidth - width) * lp.horizontalWeight); 1453 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1454 MeasureSpec.EXACTLY); 1455 measureAgain = true; 1456 } 1457 if (lp.verticalWeight > 0.0f) { 1458 height += (int) ((mHeight - height) * lp.verticalWeight); 1459 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1460 MeasureSpec.EXACTLY); 1461 measureAgain = true; 1462 } 1463 1464 if (measureAgain) { 1465 if (DEBUG_LAYOUT) Log.v(TAG, 1466 "And hey let's measure once more: width=" + width 1467 + " height=" + height); 1468 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1469 } 1470 1471 mLayoutRequested = true; 1472 } 1473 } 1474 } 1475 1476 final boolean didLayout = mLayoutRequested && !mStopped; 1477 boolean triggerGlobalLayoutListener = didLayout 1478 || attachInfo.mRecomputeGlobalAttributes; 1479 if (didLayout) { 1480 mLayoutRequested = false; 1481 mScrollMayChange = true; 1482 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1483 TAG, "Laying out " + host + " to (" + 1484 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1485 long startTime = 0L; 1486 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1487 startTime = SystemClock.elapsedRealtime(); 1488 } 1489 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1490 1491 if (false && ViewDebug.consistencyCheckEnabled) { 1492 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1493 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1494 + "please refer to the logs with the tag " 1495 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1496 } 1497 } 1498 1499 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1500 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1501 } 1502 1503 // By this point all views have been sized and positionned 1504 // We can compute the transparent area 1505 1506 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1507 // start out transparent 1508 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1509 host.getLocationInWindow(mTmpLocation); 1510 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1511 mTmpLocation[0] + host.mRight - host.mLeft, 1512 mTmpLocation[1] + host.mBottom - host.mTop); 1513 1514 host.gatherTransparentRegion(mTransparentRegion); 1515 if (mTranslator != null) { 1516 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1517 } 1518 1519 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1520 mPreviousTransparentRegion.set(mTransparentRegion); 1521 // reconfigure window manager 1522 try { 1523 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1524 } catch (RemoteException e) { 1525 } 1526 } 1527 } 1528 1529 if (DBG) { 1530 System.out.println("======================================"); 1531 System.out.println("performTraversals -- after setFrame"); 1532 host.debug(); 1533 } 1534 } 1535 1536 if (triggerGlobalLayoutListener) { 1537 attachInfo.mRecomputeGlobalAttributes = false; 1538 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1539 1540 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1541 postSendWindowContentChangedCallback(); 1542 } 1543 } 1544 1545 if (computesInternalInsets) { 1546 // Clear the original insets. 1547 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1548 insets.reset(); 1549 1550 // Compute new insets in place. 1551 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1552 1553 // Tell the window manager. 1554 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1555 mLastGivenInsets.set(insets); 1556 1557 // Translate insets to screen coordinates if needed. 1558 final Rect contentInsets; 1559 final Rect visibleInsets; 1560 final Region touchableRegion; 1561 if (mTranslator != null) { 1562 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1563 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1564 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1565 } else { 1566 contentInsets = insets.contentInsets; 1567 visibleInsets = insets.visibleInsets; 1568 touchableRegion = insets.touchableRegion; 1569 } 1570 1571 try { 1572 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1573 contentInsets, visibleInsets, touchableRegion); 1574 } catch (RemoteException e) { 1575 } 1576 } 1577 } 1578 1579 if (mFirst) { 1580 // handle first focus request 1581 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1582 + mView.hasFocus()); 1583 if (mView != null) { 1584 if (!mView.hasFocus()) { 1585 mView.requestFocus(View.FOCUS_FORWARD); 1586 mFocusedView = mRealFocusedView = mView.findFocus(); 1587 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1588 + mFocusedView); 1589 } else { 1590 mRealFocusedView = mView.findFocus(); 1591 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1592 + mRealFocusedView); 1593 } 1594 } 1595 } 1596 1597 mFirst = false; 1598 mWillDrawSoon = false; 1599 mNewSurfaceNeeded = false; 1600 mViewVisibility = viewVisibility; 1601 1602 if (mAttachInfo.mHasWindowFocus) { 1603 final boolean imTarget = WindowManager.LayoutParams 1604 .mayUseInputMethod(mWindowAttributes.flags); 1605 if (imTarget != mLastWasImTarget) { 1606 mLastWasImTarget = imTarget; 1607 InputMethodManager imm = InputMethodManager.peekInstance(); 1608 if (imm != null && imTarget) { 1609 imm.startGettingWindowFocus(mView); 1610 imm.onWindowFocus(mView, mView.findFocus(), 1611 mWindowAttributes.softInputMode, 1612 !mHasHadWindowFocus, mWindowAttributes.flags); 1613 } 1614 } 1615 } 1616 1617 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1618 viewVisibility != View.VISIBLE; 1619 1620 if (!cancelDraw && !newSurface) { 1621 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1622 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1623 mPendingTransitions.get(i).startChangingAnimations(); 1624 } 1625 mPendingTransitions.clear(); 1626 } 1627 mFullRedrawNeeded = false; 1628 1629 final long drawStartTime; 1630 if (ViewDebug.DEBUG_LATENCY) { 1631 drawStartTime = System.nanoTime(); 1632 } 1633 1634 draw(fullRedrawNeeded); 1635 1636 if (ViewDebug.DEBUG_LATENCY) { 1637 mLastDrawDurationNanos = System.nanoTime() - drawStartTime; 1638 } 1639 1640 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0 1641 || mReportNextDraw) { 1642 if (LOCAL_LOGV) { 1643 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 1644 } 1645 mReportNextDraw = false; 1646 if (mSurfaceHolder != null && mSurface.isValid()) { 1647 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 1648 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1649 if (callbacks != null) { 1650 for (SurfaceHolder.Callback c : callbacks) { 1651 if (c instanceof SurfaceHolder.Callback2) { 1652 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 1653 mSurfaceHolder); 1654 } 1655 } 1656 } 1657 } 1658 try { 1659 sWindowSession.finishDrawing(mWindow); 1660 } catch (RemoteException e) { 1661 } 1662 } 1663 } else { 1664 // End any pending transitions on this non-visible window 1665 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1666 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1667 mPendingTransitions.get(i).endChangingAnimations(); 1668 } 1669 mPendingTransitions.clear(); 1670 } 1671 // We were supposed to report when we are done drawing. Since we canceled the 1672 // draw, remember it here. 1673 if ((relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 1674 mReportNextDraw = true; 1675 } 1676 if (fullRedrawNeeded) { 1677 mFullRedrawNeeded = true; 1678 } 1679 1680 if (viewVisibility == View.VISIBLE) { 1681 // Try again 1682 scheduleTraversals(); 1683 } 1684 } 1685 } 1686 1687 public void requestTransparentRegion(View child) { 1688 // the test below should not fail unless someone is messing with us 1689 checkThread(); 1690 if (mView == child) { 1691 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1692 // Need to make sure we re-evaluate the window attributes next 1693 // time around, to ensure the window has the correct format. 1694 mWindowAttributesChanged = true; 1695 mWindowAttributesChangesFlag = 0; 1696 requestLayout(); 1697 } 1698 } 1699 1700 /** 1701 * Figures out the measure spec for the root view in a window based on it's 1702 * layout params. 1703 * 1704 * @param windowSize 1705 * The available width or height of the window 1706 * 1707 * @param rootDimension 1708 * The layout params for one dimension (width or height) of the 1709 * window. 1710 * 1711 * @return The measure spec to use to measure the root view. 1712 */ 1713 private int getRootMeasureSpec(int windowSize, int rootDimension) { 1714 int measureSpec; 1715 switch (rootDimension) { 1716 1717 case ViewGroup.LayoutParams.MATCH_PARENT: 1718 // Window can't resize. Force root view to be windowSize. 1719 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1720 break; 1721 case ViewGroup.LayoutParams.WRAP_CONTENT: 1722 // Window can resize. Set max size for root view. 1723 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1724 break; 1725 default: 1726 // Window wants to be an exact size. Force root view to be that size. 1727 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1728 break; 1729 } 1730 return measureSpec; 1731 } 1732 1733 int mHardwareYOffset; 1734 int mResizeAlpha; 1735 final Paint mResizePaint = new Paint(); 1736 1737 public void onHardwarePreDraw(HardwareCanvas canvas) { 1738 canvas.translate(0, -mHardwareYOffset); 1739 } 1740 1741 public void onHardwarePostDraw(HardwareCanvas canvas) { 1742 if (mResizeBuffer != null) { 1743 mResizePaint.setAlpha(mResizeAlpha); 1744 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1745 } 1746 } 1747 1748 /** 1749 * @hide 1750 */ 1751 void outputDisplayList(View view) { 1752 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1753 DisplayList displayList = view.getDisplayList(); 1754 if (displayList != null) { 1755 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1756 } 1757 } 1758 } 1759 1760 /** 1761 * @see #PROPERTY_PROFILE_RENDERING 1762 */ 1763 private void profileRendering(boolean enabled) { 1764 if (mProfileRendering) { 1765 mRenderProfilingEnabled = enabled; 1766 if (mRenderProfiler == null) { 1767 mRenderProfiler = new Thread(new Runnable() { 1768 @Override 1769 public void run() { 1770 Log.d(TAG, "Starting profiling thread"); 1771 while (mRenderProfilingEnabled) { 1772 mAttachInfo.mHandler.post(new Runnable() { 1773 @Override 1774 public void run() { 1775 mDirty.set(0, 0, mWidth, mHeight); 1776 scheduleTraversals(); 1777 } 1778 }); 1779 try { 1780 // TODO: This should use vsync when we get an API 1781 Thread.sleep(15); 1782 } catch (InterruptedException e) { 1783 Log.d(TAG, "Exiting profiling thread"); 1784 } 1785 } 1786 } 1787 }, "Rendering Profiler"); 1788 mRenderProfiler.start(); 1789 } else { 1790 mRenderProfiler.interrupt(); 1791 mRenderProfiler = null; 1792 } 1793 } 1794 } 1795 1796 /** 1797 * Called from draw() when DEBUG_FPS is enabled 1798 */ 1799 private void trackFPS() { 1800 // Tracks frames per second drawn. First value in a series of draws may be bogus 1801 // because it down not account for the intervening idle time 1802 long nowTime = System.currentTimeMillis(); 1803 if (mFpsStartTime < 0) { 1804 mFpsStartTime = mFpsPrevTime = nowTime; 1805 mFpsNumFrames = 0; 1806 } else { 1807 ++mFpsNumFrames; 1808 String thisHash = Integer.toHexString(System.identityHashCode(this)); 1809 long frameTime = nowTime - mFpsPrevTime; 1810 long totalTime = nowTime - mFpsStartTime; 1811 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 1812 mFpsPrevTime = nowTime; 1813 if (totalTime > 1000) { 1814 float fps = (float) mFpsNumFrames * 1000 / totalTime; 1815 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 1816 mFpsStartTime = nowTime; 1817 mFpsNumFrames = 0; 1818 } 1819 } 1820 } 1821 1822 private void draw(boolean fullRedrawNeeded) { 1823 Surface surface = mSurface; 1824 if (surface == null || !surface.isValid()) { 1825 return; 1826 } 1827 1828 if (DEBUG_FPS) { 1829 trackFPS(); 1830 } 1831 1832 if (!sFirstDrawComplete) { 1833 synchronized (sFirstDrawHandlers) { 1834 sFirstDrawComplete = true; 1835 final int count = sFirstDrawHandlers.size(); 1836 for (int i = 0; i< count; i++) { 1837 post(sFirstDrawHandlers.get(i)); 1838 } 1839 } 1840 } 1841 1842 scrollToRectOrFocus(null, false); 1843 1844 if (mAttachInfo.mViewScrollChanged) { 1845 mAttachInfo.mViewScrollChanged = false; 1846 mAttachInfo.mTreeObserver.dispatchOnScrollChanged(); 1847 } 1848 1849 int yoff; 1850 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 1851 if (animating) { 1852 yoff = mScroller.getCurrY(); 1853 } else { 1854 yoff = mScrollY; 1855 } 1856 if (mCurScrollY != yoff) { 1857 mCurScrollY = yoff; 1858 fullRedrawNeeded = true; 1859 } 1860 float appScale = mAttachInfo.mApplicationScale; 1861 boolean scalingRequired = mAttachInfo.mScalingRequired; 1862 1863 int resizeAlpha = 0; 1864 if (mResizeBuffer != null) { 1865 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 1866 if (deltaTime < mResizeBufferDuration) { 1867 float amt = deltaTime/(float) mResizeBufferDuration; 1868 amt = mResizeInterpolator.getInterpolation(amt); 1869 animating = true; 1870 resizeAlpha = 255 - (int)(amt*255); 1871 } else { 1872 disposeResizeBuffer(); 1873 } 1874 } 1875 1876 Rect dirty = mDirty; 1877 if (mSurfaceHolder != null) { 1878 // The app owns the surface, we won't draw. 1879 dirty.setEmpty(); 1880 if (animating) { 1881 if (mScroller != null) { 1882 mScroller.abortAnimation(); 1883 } 1884 disposeResizeBuffer(); 1885 } 1886 return; 1887 } 1888 1889 if (fullRedrawNeeded) { 1890 mAttachInfo.mIgnoreDirtyState = true; 1891 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 1892 } 1893 1894 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 1895 if (!dirty.isEmpty() || mIsAnimating) { 1896 mIsAnimating = false; 1897 mHardwareYOffset = yoff; 1898 mResizeAlpha = resizeAlpha; 1899 1900 mCurrentDirty.set(dirty); 1901 mCurrentDirty.union(mPreviousDirty); 1902 mPreviousDirty.set(dirty); 1903 dirty.setEmpty(); 1904 1905 Rect currentDirty = mCurrentDirty; 1906 if (animating) { 1907 currentDirty = null; 1908 } 1909 1910 if (mAttachInfo.mHardwareRenderer.draw(mView, mAttachInfo, this, currentDirty)) { 1911 mPreviousDirty.set(0, 0, mWidth, mHeight); 1912 } 1913 } 1914 1915 if (animating) { 1916 mFullRedrawNeeded = true; 1917 scheduleTraversals(); 1918 } 1919 1920 return; 1921 } 1922 1923 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1924 Log.v(TAG, "Draw " + mView + "/" 1925 + mWindowAttributes.getTitle() 1926 + ": dirty={" + dirty.left + "," + dirty.top 1927 + "," + dirty.right + "," + dirty.bottom + "} surface=" 1928 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 1929 appScale + ", width=" + mWidth + ", height=" + mHeight); 1930 } 1931 1932 if (!dirty.isEmpty() || mIsAnimating) { 1933 Canvas canvas; 1934 try { 1935 int left = dirty.left; 1936 int top = dirty.top; 1937 int right = dirty.right; 1938 int bottom = dirty.bottom; 1939 1940 final long lockCanvasStartTime; 1941 if (ViewDebug.DEBUG_LATENCY) { 1942 lockCanvasStartTime = System.nanoTime(); 1943 } 1944 1945 canvas = surface.lockCanvas(dirty); 1946 1947 if (ViewDebug.DEBUG_LATENCY) { 1948 long now = System.nanoTime(); 1949 Log.d(TAG, "Latency: Spent " 1950 + ((now - lockCanvasStartTime) * 0.000001f) 1951 + "ms waiting for surface.lockCanvas()"); 1952 } 1953 1954 if (left != dirty.left || top != dirty.top || right != dirty.right || 1955 bottom != dirty.bottom) { 1956 mAttachInfo.mIgnoreDirtyState = true; 1957 } 1958 1959 // TODO: Do this in native 1960 canvas.setDensity(mDensity); 1961 } catch (Surface.OutOfResourcesException e) { 1962 Log.e(TAG, "OutOfResourcesException locking surface", e); 1963 try { 1964 if (!sWindowSession.outOfMemory(mWindow)) { 1965 Slog.w(TAG, "No processes killed for memory; killing self"); 1966 Process.killProcess(Process.myPid()); 1967 } 1968 } catch (RemoteException ex) { 1969 } 1970 mLayoutRequested = true; // ask wm for a new surface next time. 1971 return; 1972 } catch (IllegalArgumentException e) { 1973 Log.e(TAG, "IllegalArgumentException locking surface", e); 1974 // Don't assume this is due to out of memory, it could be 1975 // something else, and if it is something else then we could 1976 // kill stuff (or ourself) for no reason. 1977 mLayoutRequested = true; // ask wm for a new surface next time. 1978 return; 1979 } 1980 1981 try { 1982 if (!dirty.isEmpty() || mIsAnimating) { 1983 long startTime = 0L; 1984 1985 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 1986 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 1987 + canvas.getWidth() + ", h=" + canvas.getHeight()); 1988 //canvas.drawARGB(255, 255, 0, 0); 1989 } 1990 1991 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 1992 startTime = SystemClock.elapsedRealtime(); 1993 } 1994 1995 // If this bitmap's format includes an alpha channel, we 1996 // need to clear it before drawing so that the child will 1997 // properly re-composite its drawing on a transparent 1998 // background. This automatically respects the clip/dirty region 1999 // or 2000 // If we are applying an offset, we need to clear the area 2001 // where the offset doesn't appear to avoid having garbage 2002 // left in the blank areas. 2003 if (!canvas.isOpaque() || yoff != 0) { 2004 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2005 } 2006 2007 dirty.setEmpty(); 2008 mIsAnimating = false; 2009 mAttachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2010 mView.mPrivateFlags |= View.DRAWN; 2011 2012 if (DEBUG_DRAW) { 2013 Context cxt = mView.getContext(); 2014 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2015 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2016 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2017 } 2018 try { 2019 canvas.translate(0, -yoff); 2020 if (mTranslator != null) { 2021 mTranslator.translateCanvas(canvas); 2022 } 2023 canvas.setScreenDensity(scalingRequired 2024 ? DisplayMetrics.DENSITY_DEVICE : 0); 2025 mAttachInfo.mSetIgnoreDirtyState = false; 2026 mView.draw(canvas); 2027 } finally { 2028 if (!mAttachInfo.mSetIgnoreDirtyState) { 2029 // Only clear the flag if it was not set during the mView.draw() call 2030 mAttachInfo.mIgnoreDirtyState = false; 2031 } 2032 } 2033 2034 if (false && ViewDebug.consistencyCheckEnabled) { 2035 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2036 } 2037 2038 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2039 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2040 } 2041 } 2042 2043 } finally { 2044 surface.unlockCanvasAndPost(canvas); 2045 } 2046 } 2047 2048 if (LOCAL_LOGV) { 2049 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2050 } 2051 2052 if (animating) { 2053 mFullRedrawNeeded = true; 2054 scheduleTraversals(); 2055 } 2056 } 2057 2058 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2059 final View.AttachInfo attachInfo = mAttachInfo; 2060 final Rect ci = attachInfo.mContentInsets; 2061 final Rect vi = attachInfo.mVisibleInsets; 2062 int scrollY = 0; 2063 boolean handled = false; 2064 2065 if (vi.left > ci.left || vi.top > ci.top 2066 || vi.right > ci.right || vi.bottom > ci.bottom) { 2067 // We'll assume that we aren't going to change the scroll 2068 // offset, since we want to avoid that unless it is actually 2069 // going to make the focus visible... otherwise we scroll 2070 // all over the place. 2071 scrollY = mScrollY; 2072 // We can be called for two different situations: during a draw, 2073 // to update the scroll position if the focus has changed (in which 2074 // case 'rectangle' is null), or in response to a 2075 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2076 // is non-null and we just want to scroll to whatever that 2077 // rectangle is). 2078 View focus = mRealFocusedView; 2079 2080 // When in touch mode, focus points to the previously focused view, 2081 // which may have been removed from the view hierarchy. The following 2082 // line checks whether the view is still in our hierarchy. 2083 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2084 mRealFocusedView = null; 2085 return false; 2086 } 2087 2088 if (focus != mLastScrolledFocus) { 2089 // If the focus has changed, then ignore any requests to scroll 2090 // to a rectangle; first we want to make sure the entire focus 2091 // view is visible. 2092 rectangle = null; 2093 } 2094 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2095 + " rectangle=" + rectangle + " ci=" + ci 2096 + " vi=" + vi); 2097 if (focus == mLastScrolledFocus && !mScrollMayChange 2098 && rectangle == null) { 2099 // Optimization: if the focus hasn't changed since last 2100 // time, and no layout has happened, then just leave things 2101 // as they are. 2102 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2103 + mScrollY + " vi=" + vi.toShortString()); 2104 } else if (focus != null) { 2105 // We need to determine if the currently focused view is 2106 // within the visible part of the window and, if not, apply 2107 // a pan so it can be seen. 2108 mLastScrolledFocus = focus; 2109 mScrollMayChange = false; 2110 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2111 // Try to find the rectangle from the focus view. 2112 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2113 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2114 + mView.getWidth() + " h=" + mView.getHeight() 2115 + " ci=" + ci.toShortString() 2116 + " vi=" + vi.toShortString()); 2117 if (rectangle == null) { 2118 focus.getFocusedRect(mTempRect); 2119 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2120 + ": focusRect=" + mTempRect.toShortString()); 2121 if (mView instanceof ViewGroup) { 2122 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2123 focus, mTempRect); 2124 } 2125 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2126 "Focus in window: focusRect=" 2127 + mTempRect.toShortString() 2128 + " visRect=" + mVisRect.toShortString()); 2129 } else { 2130 mTempRect.set(rectangle); 2131 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2132 "Request scroll to rect: " 2133 + mTempRect.toShortString() 2134 + " visRect=" + mVisRect.toShortString()); 2135 } 2136 if (mTempRect.intersect(mVisRect)) { 2137 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2138 "Focus window visible rect: " 2139 + mTempRect.toShortString()); 2140 if (mTempRect.height() > 2141 (mView.getHeight()-vi.top-vi.bottom)) { 2142 // If the focus simply is not going to fit, then 2143 // best is probably just to leave things as-is. 2144 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2145 "Too tall; leaving scrollY=" + scrollY); 2146 } else if ((mTempRect.top-scrollY) < vi.top) { 2147 scrollY -= vi.top - (mTempRect.top-scrollY); 2148 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2149 "Top covered; scrollY=" + scrollY); 2150 } else if ((mTempRect.bottom-scrollY) 2151 > (mView.getHeight()-vi.bottom)) { 2152 scrollY += (mTempRect.bottom-scrollY) 2153 - (mView.getHeight()-vi.bottom); 2154 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2155 "Bottom covered; scrollY=" + scrollY); 2156 } 2157 handled = true; 2158 } 2159 } 2160 } 2161 } 2162 2163 if (scrollY != mScrollY) { 2164 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2165 + mScrollY + " , new=" + scrollY); 2166 if (!immediate && mResizeBuffer == null) { 2167 if (mScroller == null) { 2168 mScroller = new Scroller(mView.getContext()); 2169 } 2170 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2171 } else if (mScroller != null) { 2172 mScroller.abortAnimation(); 2173 } 2174 mScrollY = scrollY; 2175 } 2176 2177 return handled; 2178 } 2179 2180 public void requestChildFocus(View child, View focused) { 2181 checkThread(); 2182 if (mFocusedView != focused) { 2183 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mFocusedView, focused); 2184 scheduleTraversals(); 2185 } 2186 mFocusedView = mRealFocusedView = focused; 2187 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Request child focus: focus now " 2188 + mFocusedView); 2189 } 2190 2191 public void clearChildFocus(View child) { 2192 checkThread(); 2193 2194 View oldFocus = mFocusedView; 2195 2196 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Clearing child focus"); 2197 mFocusedView = mRealFocusedView = null; 2198 if (mView != null && !mView.hasFocus()) { 2199 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2200 if (!mView.requestFocus(View.FOCUS_FORWARD)) { 2201 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2202 } 2203 } else if (oldFocus != null) { 2204 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(oldFocus, null); 2205 } 2206 } 2207 2208 2209 public void focusableViewAvailable(View v) { 2210 checkThread(); 2211 2212 if (mView != null) { 2213 if (!mView.hasFocus()) { 2214 v.requestFocus(); 2215 } else { 2216 // the one case where will transfer focus away from the current one 2217 // is if the current view is a view group that prefers to give focus 2218 // to its children first AND the view is a descendant of it. 2219 mFocusedView = mView.findFocus(); 2220 boolean descendantsHaveDibsOnFocus = 2221 (mFocusedView instanceof ViewGroup) && 2222 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2223 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2224 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2225 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2226 v.requestFocus(); 2227 } 2228 } 2229 } 2230 } 2231 2232 public void recomputeViewAttributes(View child) { 2233 checkThread(); 2234 if (mView == child) { 2235 mAttachInfo.mRecomputeGlobalAttributes = true; 2236 if (!mWillDrawSoon) { 2237 scheduleTraversals(); 2238 } 2239 } 2240 } 2241 2242 void dispatchDetachedFromWindow() { 2243 if (mView != null && mView.mAttachInfo != null) { 2244 if (mAttachInfo.mHardwareRenderer != null && 2245 mAttachInfo.mHardwareRenderer.isEnabled()) { 2246 mAttachInfo.mHardwareRenderer.validate(); 2247 } 2248 mView.dispatchDetachedFromWindow(); 2249 } 2250 2251 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2252 mAccessibilityManager.removeAccessibilityStateChangeListener( 2253 mAccessibilityInteractionConnectionManager); 2254 removeSendWindowContentChangedCallback(); 2255 2256 mView = null; 2257 mAttachInfo.mRootView = null; 2258 mAttachInfo.mSurface = null; 2259 2260 destroyHardwareRenderer(); 2261 2262 mSurface.release(); 2263 2264 if (mInputQueueCallback != null && mInputQueue != null) { 2265 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2266 mInputQueueCallback = null; 2267 mInputQueue = null; 2268 } else if (mInputChannel != null) { 2269 InputQueue.unregisterInputChannel(mInputChannel); 2270 } 2271 try { 2272 sWindowSession.remove(mWindow); 2273 } catch (RemoteException e) { 2274 } 2275 2276 // Dispose the input channel after removing the window so the Window Manager 2277 // doesn't interpret the input channel being closed as an abnormal termination. 2278 if (mInputChannel != null) { 2279 mInputChannel.dispose(); 2280 mInputChannel = null; 2281 } 2282 } 2283 2284 void updateConfiguration(Configuration config, boolean force) { 2285 if (DEBUG_CONFIGURATION) Log.v(TAG, 2286 "Applying new config to window " 2287 + mWindowAttributes.getTitle() 2288 + ": " + config); 2289 2290 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2291 if (ci != null) { 2292 config = new Configuration(config); 2293 ci.applyToConfiguration(config); 2294 } 2295 2296 synchronized (sConfigCallbacks) { 2297 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2298 sConfigCallbacks.get(i).onConfigurationChanged(config); 2299 } 2300 } 2301 if (mView != null) { 2302 // At this point the resources have been updated to 2303 // have the most recent config, whatever that is. Use 2304 // the on in them which may be newer. 2305 config = mView.getResources().getConfiguration(); 2306 if (force || mLastConfiguration.diff(config) != 0) { 2307 mLastConfiguration.setTo(config); 2308 mView.dispatchConfigurationChanged(config); 2309 } 2310 } 2311 } 2312 2313 /** 2314 * Return true if child is an ancestor of parent, (or equal to the parent). 2315 */ 2316 private static boolean isViewDescendantOf(View child, View parent) { 2317 if (child == parent) { 2318 return true; 2319 } 2320 2321 final ViewParent theParent = child.getParent(); 2322 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2323 } 2324 2325 private static void forceLayout(View view) { 2326 view.forceLayout(); 2327 if (view instanceof ViewGroup) { 2328 ViewGroup group = (ViewGroup) view; 2329 final int count = group.getChildCount(); 2330 for (int i = 0; i < count; i++) { 2331 forceLayout(group.getChildAt(i)); 2332 } 2333 } 2334 } 2335 2336 public final static int DO_TRAVERSAL = 1000; 2337 public final static int DIE = 1001; 2338 public final static int RESIZED = 1002; 2339 public final static int RESIZED_REPORT = 1003; 2340 public final static int WINDOW_FOCUS_CHANGED = 1004; 2341 public final static int DISPATCH_KEY = 1005; 2342 public final static int DISPATCH_POINTER = 1006; 2343 public final static int DISPATCH_TRACKBALL = 1007; 2344 public final static int DISPATCH_APP_VISIBILITY = 1008; 2345 public final static int DISPATCH_GET_NEW_SURFACE = 1009; 2346 public final static int FINISHED_EVENT = 1010; 2347 public final static int DISPATCH_KEY_FROM_IME = 1011; 2348 public final static int FINISH_INPUT_CONNECTION = 1012; 2349 public final static int CHECK_FOCUS = 1013; 2350 public final static int CLOSE_SYSTEM_DIALOGS = 1014; 2351 public final static int DISPATCH_DRAG_EVENT = 1015; 2352 public final static int DISPATCH_DRAG_LOCATION_EVENT = 1016; 2353 public final static int DISPATCH_SYSTEM_UI_VISIBILITY = 1017; 2354 public final static int DISPATCH_GENERIC_MOTION = 1018; 2355 public final static int UPDATE_CONFIGURATION = 1019; 2356 public final static int DO_PERFORM_ACCESSIBILITY_ACTION = 1020; 2357 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID = 1021; 2358 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID = 1022; 2359 public final static int DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT = 1023; 2360 public final static int PROCESS_INPUT_EVENTS = 1024; 2361 2362 @Override 2363 public String getMessageName(Message message) { 2364 switch (message.what) { 2365 case DO_TRAVERSAL: 2366 return "DO_TRAVERSAL"; 2367 case DIE: 2368 return "DIE"; 2369 case RESIZED: 2370 return "RESIZED"; 2371 case RESIZED_REPORT: 2372 return "RESIZED_REPORT"; 2373 case WINDOW_FOCUS_CHANGED: 2374 return "WINDOW_FOCUS_CHANGED"; 2375 case DISPATCH_KEY: 2376 return "DISPATCH_KEY"; 2377 case DISPATCH_POINTER: 2378 return "DISPATCH_POINTER"; 2379 case DISPATCH_TRACKBALL: 2380 return "DISPATCH_TRACKBALL"; 2381 case DISPATCH_APP_VISIBILITY: 2382 return "DISPATCH_APP_VISIBILITY"; 2383 case DISPATCH_GET_NEW_SURFACE: 2384 return "DISPATCH_GET_NEW_SURFACE"; 2385 case FINISHED_EVENT: 2386 return "FINISHED_EVENT"; 2387 case DISPATCH_KEY_FROM_IME: 2388 return "DISPATCH_KEY_FROM_IME"; 2389 case FINISH_INPUT_CONNECTION: 2390 return "FINISH_INPUT_CONNECTION"; 2391 case CHECK_FOCUS: 2392 return "CHECK_FOCUS"; 2393 case CLOSE_SYSTEM_DIALOGS: 2394 return "CLOSE_SYSTEM_DIALOGS"; 2395 case DISPATCH_DRAG_EVENT: 2396 return "DISPATCH_DRAG_EVENT"; 2397 case DISPATCH_DRAG_LOCATION_EVENT: 2398 return "DISPATCH_DRAG_LOCATION_EVENT"; 2399 case DISPATCH_SYSTEM_UI_VISIBILITY: 2400 return "DISPATCH_SYSTEM_UI_VISIBILITY"; 2401 case DISPATCH_GENERIC_MOTION: 2402 return "DISPATCH_GENERIC_MOTION"; 2403 case UPDATE_CONFIGURATION: 2404 return "UPDATE_CONFIGURATION"; 2405 case DO_PERFORM_ACCESSIBILITY_ACTION: 2406 return "DO_PERFORM_ACCESSIBILITY_ACTION"; 2407 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: 2408 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID"; 2409 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: 2410 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID"; 2411 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: 2412 return "DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT"; 2413 case PROCESS_INPUT_EVENTS: 2414 return "PROCESS_INPUT_EVENTS"; 2415 } 2416 return super.getMessageName(message); 2417 } 2418 2419 @Override 2420 public void handleMessage(Message msg) { 2421 switch (msg.what) { 2422 case View.AttachInfo.INVALIDATE_MSG: 2423 ((View) msg.obj).invalidate(); 2424 break; 2425 case View.AttachInfo.INVALIDATE_RECT_MSG: 2426 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2427 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2428 info.release(); 2429 break; 2430 case DO_TRAVERSAL: 2431 if (mProfile) { 2432 Debug.startMethodTracing("ViewAncestor"); 2433 } 2434 2435 final long traversalStartTime; 2436 if (ViewDebug.DEBUG_LATENCY) { 2437 traversalStartTime = System.nanoTime(); 2438 mLastDrawDurationNanos = 0; 2439 } 2440 2441 performTraversals(); 2442 2443 if (ViewDebug.DEBUG_LATENCY) { 2444 long now = System.nanoTime(); 2445 Log.d(TAG, "Latency: Spent " 2446 + ((now - traversalStartTime) * 0.000001f) 2447 + "ms in performTraversals(), with " 2448 + (mLastDrawDurationNanos * 0.000001f) 2449 + "ms of that time in draw()"); 2450 mLastTraversalFinishedTimeNanos = now; 2451 } 2452 2453 if (mProfile) { 2454 Debug.stopMethodTracing(); 2455 mProfile = false; 2456 } 2457 break; 2458 case FINISHED_EVENT: 2459 handleFinishedEvent(msg.arg1, msg.arg2 != 0); 2460 break; 2461 case DISPATCH_KEY: 2462 deliverKeyEvent((KeyEvent)msg.obj, msg.arg1 != 0); 2463 break; 2464 case DISPATCH_POINTER: 2465 deliverPointerEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2466 break; 2467 case DISPATCH_TRACKBALL: 2468 deliverTrackballEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2469 break; 2470 case DISPATCH_GENERIC_MOTION: 2471 deliverGenericMotionEvent((MotionEvent) msg.obj, msg.arg1 != 0); 2472 break; 2473 case PROCESS_INPUT_EVENTS: 2474 processInputEvents(false); 2475 break; 2476 case DISPATCH_APP_VISIBILITY: 2477 handleAppVisibility(msg.arg1 != 0); 2478 break; 2479 case DISPATCH_GET_NEW_SURFACE: 2480 handleGetNewSurface(); 2481 break; 2482 case RESIZED: 2483 ResizedInfo ri = (ResizedInfo)msg.obj; 2484 2485 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2486 && mPendingContentInsets.equals(ri.coveredInsets) 2487 && mPendingVisibleInsets.equals(ri.visibleInsets) 2488 && ((ResizedInfo)msg.obj).newConfig == null) { 2489 break; 2490 } 2491 // fall through... 2492 case RESIZED_REPORT: 2493 if (mAdded) { 2494 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2495 if (config != null) { 2496 updateConfiguration(config, false); 2497 } 2498 mWinFrame.left = 0; 2499 mWinFrame.right = msg.arg1; 2500 mWinFrame.top = 0; 2501 mWinFrame.bottom = msg.arg2; 2502 mPendingContentInsets.set(((ResizedInfo)msg.obj).coveredInsets); 2503 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2504 if (msg.what == RESIZED_REPORT) { 2505 mReportNextDraw = true; 2506 } 2507 2508 if (mView != null) { 2509 forceLayout(mView); 2510 } 2511 requestLayout(); 2512 } 2513 break; 2514 case WINDOW_FOCUS_CHANGED: { 2515 if (mAdded) { 2516 boolean hasWindowFocus = msg.arg1 != 0; 2517 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2518 2519 profileRendering(hasWindowFocus); 2520 2521 if (hasWindowFocus) { 2522 boolean inTouchMode = msg.arg2 != 0; 2523 ensureTouchModeLocally(inTouchMode); 2524 2525 if (mAttachInfo.mHardwareRenderer != null && 2526 mSurface != null && mSurface.isValid()) { 2527 mFullRedrawNeeded = true; 2528 try { 2529 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2530 mAttachInfo, mHolder); 2531 } catch (Surface.OutOfResourcesException e) { 2532 Log.e(TAG, "OutOfResourcesException locking surface", e); 2533 try { 2534 if (!sWindowSession.outOfMemory(mWindow)) { 2535 Slog.w(TAG, "No processes killed for memory; killing self"); 2536 Process.killProcess(Process.myPid()); 2537 } 2538 } catch (RemoteException ex) { 2539 } 2540 // Retry in a bit. 2541 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2542 return; 2543 } 2544 } 2545 } 2546 2547 mLastWasImTarget = WindowManager.LayoutParams 2548 .mayUseInputMethod(mWindowAttributes.flags); 2549 2550 InputMethodManager imm = InputMethodManager.peekInstance(); 2551 if (mView != null) { 2552 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2553 imm.startGettingWindowFocus(mView); 2554 } 2555 mAttachInfo.mKeyDispatchState.reset(); 2556 mView.dispatchWindowFocusChanged(hasWindowFocus); 2557 } 2558 2559 // Note: must be done after the focus change callbacks, 2560 // so all of the view state is set up correctly. 2561 if (hasWindowFocus) { 2562 if (imm != null && mLastWasImTarget) { 2563 imm.onWindowFocus(mView, mView.findFocus(), 2564 mWindowAttributes.softInputMode, 2565 !mHasHadWindowFocus, mWindowAttributes.flags); 2566 } 2567 // Clear the forward bit. We can just do this directly, since 2568 // the window manager doesn't care about it. 2569 mWindowAttributes.softInputMode &= 2570 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2571 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2572 .softInputMode &= 2573 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2574 mHasHadWindowFocus = true; 2575 } 2576 2577 if (hasWindowFocus && mView != null) { 2578 sendAccessibilityEvents(); 2579 } 2580 } 2581 } break; 2582 case DIE: 2583 doDie(); 2584 break; 2585 case DISPATCH_KEY_FROM_IME: { 2586 if (LOCAL_LOGV) Log.v( 2587 TAG, "Dispatching key " 2588 + msg.obj + " from IME to " + mView); 2589 KeyEvent event = (KeyEvent)msg.obj; 2590 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2591 // The IME is trying to say this event is from the 2592 // system! Bad bad bad! 2593 //noinspection UnusedAssignment 2594 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2595 } 2596 deliverKeyEventPostIme((KeyEvent)msg.obj, false); 2597 } break; 2598 case FINISH_INPUT_CONNECTION: { 2599 InputMethodManager imm = InputMethodManager.peekInstance(); 2600 if (imm != null) { 2601 imm.reportFinishInputConnection((InputConnection)msg.obj); 2602 } 2603 } break; 2604 case CHECK_FOCUS: { 2605 InputMethodManager imm = InputMethodManager.peekInstance(); 2606 if (imm != null) { 2607 imm.checkFocus(); 2608 } 2609 } break; 2610 case CLOSE_SYSTEM_DIALOGS: { 2611 if (mView != null) { 2612 mView.onCloseSystemDialogs((String)msg.obj); 2613 } 2614 } break; 2615 case DISPATCH_DRAG_EVENT: 2616 case DISPATCH_DRAG_LOCATION_EVENT: { 2617 DragEvent event = (DragEvent)msg.obj; 2618 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2619 handleDragEvent(event); 2620 } break; 2621 case DISPATCH_SYSTEM_UI_VISIBILITY: { 2622 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2623 } break; 2624 case UPDATE_CONFIGURATION: { 2625 Configuration config = (Configuration)msg.obj; 2626 if (config.isOtherSeqNewer(mLastConfiguration)) { 2627 config = mLastConfiguration; 2628 } 2629 updateConfiguration(config, false); 2630 } break; 2631 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID: { 2632 if (mView != null) { 2633 getAccessibilityInteractionController() 2634 .findAccessibilityNodeInfoByAccessibilityIdUiThread(msg); 2635 } 2636 } break; 2637 case DO_PERFORM_ACCESSIBILITY_ACTION: { 2638 if (mView != null) { 2639 getAccessibilityInteractionController() 2640 .perfromAccessibilityActionUiThread(msg); 2641 } 2642 } break; 2643 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID: { 2644 if (mView != null) { 2645 getAccessibilityInteractionController() 2646 .findAccessibilityNodeInfoByViewIdUiThread(msg); 2647 } 2648 } break; 2649 case DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT: { 2650 if (mView != null) { 2651 getAccessibilityInteractionController() 2652 .findAccessibilityNodeInfosByTextUiThread(msg); 2653 } 2654 } break; 2655 } 2656 } 2657 2658 private void startInputEvent(InputQueue.FinishedCallback finishedCallback) { 2659 if (mFinishedCallback != null) { 2660 Slog.w(TAG, "Received a new input event from the input queue but there is " 2661 + "already an unfinished input event in progress."); 2662 } 2663 2664 if (ViewDebug.DEBUG_LATENCY) { 2665 mInputEventReceiveTimeNanos = System.nanoTime(); 2666 mInputEventDeliverTimeNanos = 0; 2667 mInputEventDeliverPostImeTimeNanos = 0; 2668 } 2669 2670 mFinishedCallback = finishedCallback; 2671 } 2672 2673 private void finishInputEvent(InputEvent event, boolean handled) { 2674 if (LOCAL_LOGV) Log.v(TAG, "Telling window manager input event is finished"); 2675 2676 if (mFinishedCallback == null) { 2677 Slog.w(TAG, "Attempted to tell the input queue that the current input event " 2678 + "is finished but there is no input event actually in progress."); 2679 return; 2680 } 2681 2682 if (ViewDebug.DEBUG_LATENCY) { 2683 final long now = System.nanoTime(); 2684 final long eventTime = event.getEventTimeNano(); 2685 final StringBuilder msg = new StringBuilder(); 2686 msg.append("Latency: Spent "); 2687 msg.append((now - mInputEventReceiveTimeNanos) * 0.000001f); 2688 msg.append("ms processing "); 2689 if (event instanceof KeyEvent) { 2690 final KeyEvent keyEvent = (KeyEvent)event; 2691 msg.append("key event, action="); 2692 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 2693 } else { 2694 final MotionEvent motionEvent = (MotionEvent)event; 2695 msg.append("motion event, action="); 2696 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 2697 msg.append(", historySize="); 2698 msg.append(motionEvent.getHistorySize()); 2699 } 2700 msg.append(", handled="); 2701 msg.append(handled); 2702 msg.append(", received at +"); 2703 msg.append((mInputEventReceiveTimeNanos - eventTime) * 0.000001f); 2704 if (mInputEventDeliverTimeNanos != 0) { 2705 msg.append("ms, delivered at +"); 2706 msg.append((mInputEventDeliverTimeNanos - eventTime) * 0.000001f); 2707 } 2708 if (mInputEventDeliverPostImeTimeNanos != 0) { 2709 msg.append("ms, delivered post IME at +"); 2710 msg.append((mInputEventDeliverPostImeTimeNanos - eventTime) * 0.000001f); 2711 } 2712 msg.append("ms, finished at +"); 2713 msg.append((now - eventTime) * 0.000001f); 2714 msg.append("ms."); 2715 Log.d(TAG, msg.toString()); 2716 } 2717 2718 mFinishedCallback.finished(handled); 2719 mFinishedCallback = null; 2720 } 2721 2722 /** 2723 * Something in the current window tells us we need to change the touch mode. For 2724 * example, we are not in touch mode, and the user touches the screen. 2725 * 2726 * If the touch mode has changed, tell the window manager, and handle it locally. 2727 * 2728 * @param inTouchMode Whether we want to be in touch mode. 2729 * @return True if the touch mode changed and focus changed was changed as a result 2730 */ 2731 boolean ensureTouchMode(boolean inTouchMode) { 2732 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 2733 + "touch mode is " + mAttachInfo.mInTouchMode); 2734 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2735 2736 // tell the window manager 2737 try { 2738 sWindowSession.setInTouchMode(inTouchMode); 2739 } catch (RemoteException e) { 2740 throw new RuntimeException(e); 2741 } 2742 2743 // handle the change 2744 return ensureTouchModeLocally(inTouchMode); 2745 } 2746 2747 /** 2748 * Ensure that the touch mode for this window is set, and if it is changing, 2749 * take the appropriate action. 2750 * @param inTouchMode Whether we want to be in touch mode. 2751 * @return True if the touch mode changed and focus changed was changed as a result 2752 */ 2753 private boolean ensureTouchModeLocally(boolean inTouchMode) { 2754 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 2755 + "touch mode is " + mAttachInfo.mInTouchMode); 2756 2757 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 2758 2759 mAttachInfo.mInTouchMode = inTouchMode; 2760 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 2761 2762 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 2763 } 2764 2765 private boolean enterTouchMode() { 2766 if (mView != null) { 2767 if (mView.hasFocus()) { 2768 // note: not relying on mFocusedView here because this could 2769 // be when the window is first being added, and mFocused isn't 2770 // set yet. 2771 final View focused = mView.findFocus(); 2772 if (focused != null && !focused.isFocusableInTouchMode()) { 2773 2774 final ViewGroup ancestorToTakeFocus = 2775 findAncestorToTakeFocusInTouchMode(focused); 2776 if (ancestorToTakeFocus != null) { 2777 // there is an ancestor that wants focus after its descendants that 2778 // is focusable in touch mode.. give it focus 2779 return ancestorToTakeFocus.requestFocus(); 2780 } else { 2781 // nothing appropriate to have focus in touch mode, clear it out 2782 mView.unFocus(); 2783 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 2784 mFocusedView = null; 2785 return true; 2786 } 2787 } 2788 } 2789 } 2790 return false; 2791 } 2792 2793 2794 /** 2795 * Find an ancestor of focused that wants focus after its descendants and is 2796 * focusable in touch mode. 2797 * @param focused The currently focused view. 2798 * @return An appropriate view, or null if no such view exists. 2799 */ 2800 private ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 2801 ViewParent parent = focused.getParent(); 2802 while (parent instanceof ViewGroup) { 2803 final ViewGroup vgParent = (ViewGroup) parent; 2804 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2805 && vgParent.isFocusableInTouchMode()) { 2806 return vgParent; 2807 } 2808 if (vgParent.isRootNamespace()) { 2809 return null; 2810 } else { 2811 parent = vgParent.getParent(); 2812 } 2813 } 2814 return null; 2815 } 2816 2817 private boolean leaveTouchMode() { 2818 if (mView != null) { 2819 if (mView.hasFocus()) { 2820 // i learned the hard way to not trust mFocusedView :) 2821 mFocusedView = mView.findFocus(); 2822 if (!(mFocusedView instanceof ViewGroup)) { 2823 // some view has focus, let it keep it 2824 return false; 2825 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 2826 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 2827 // some view group has focus, and doesn't prefer its children 2828 // over itself for focus, so let them keep it. 2829 return false; 2830 } 2831 } 2832 2833 // find the best view to give focus to in this brave new non-touch-mode 2834 // world 2835 final View focused = focusSearch(null, View.FOCUS_DOWN); 2836 if (focused != null) { 2837 return focused.requestFocus(View.FOCUS_DOWN); 2838 } 2839 } 2840 return false; 2841 } 2842 2843 private void deliverPointerEvent(MotionEvent event, boolean sendDone) { 2844 if (ViewDebug.DEBUG_LATENCY) { 2845 mInputEventDeliverTimeNanos = System.nanoTime(); 2846 } 2847 2848 final boolean isTouchEvent = event.isTouchEvent(); 2849 if (mInputEventConsistencyVerifier != null) { 2850 if (isTouchEvent) { 2851 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 2852 } else { 2853 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 2854 } 2855 } 2856 2857 // If there is no view, then the event will not be handled. 2858 if (mView == null || !mAdded) { 2859 finishMotionEvent(event, sendDone, false); 2860 return; 2861 } 2862 2863 // Translate the pointer event for compatibility, if needed. 2864 if (mTranslator != null) { 2865 mTranslator.translateEventInScreenToAppWindow(event); 2866 } 2867 2868 // Enter touch mode on down or scroll. 2869 final int action = event.getAction(); 2870 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 2871 ensureTouchMode(true); 2872 } 2873 2874 // Offset the scroll position. 2875 if (mCurScrollY != 0) { 2876 event.offsetLocation(0, mCurScrollY); 2877 } 2878 if (MEASURE_LATENCY) { 2879 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 2880 } 2881 2882 // Remember the touch position for possible drag-initiation. 2883 if (isTouchEvent) { 2884 mLastTouchPoint.x = event.getRawX(); 2885 mLastTouchPoint.y = event.getRawY(); 2886 } 2887 2888 // Dispatch touch to view hierarchy. 2889 boolean handled = mView.dispatchPointerEvent(event); 2890 if (MEASURE_LATENCY) { 2891 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 2892 } 2893 if (handled) { 2894 finishMotionEvent(event, sendDone, true); 2895 return; 2896 } 2897 2898 // Pointer event was unhandled. 2899 finishMotionEvent(event, sendDone, false); 2900 } 2901 2902 private void finishMotionEvent(MotionEvent event, boolean sendDone, boolean handled) { 2903 event.recycle(); 2904 if (sendDone) { 2905 finishInputEvent(event, handled); 2906 } 2907 //noinspection ConstantConditions 2908 if (LOCAL_LOGV || WATCH_POINTER) { 2909 if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 2910 Log.i(TAG, "Done dispatching!"); 2911 } 2912 } 2913 } 2914 2915 private void deliverTrackballEvent(MotionEvent event, boolean sendDone) { 2916 if (ViewDebug.DEBUG_LATENCY) { 2917 mInputEventDeliverTimeNanos = System.nanoTime(); 2918 } 2919 2920 if (DEBUG_TRACKBALL) Log.v(TAG, "Motion event:" + event); 2921 2922 if (mInputEventConsistencyVerifier != null) { 2923 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 2924 } 2925 2926 // If there is no view, then the event will not be handled. 2927 if (mView == null || !mAdded) { 2928 finishMotionEvent(event, sendDone, false); 2929 return; 2930 } 2931 2932 // Deliver the trackball event to the view. 2933 if (mView.dispatchTrackballEvent(event)) { 2934 // If we reach this, we delivered a trackball event to mView and 2935 // mView consumed it. Because we will not translate the trackball 2936 // event into a key event, touch mode will not exit, so we exit 2937 // touch mode here. 2938 ensureTouchMode(false); 2939 2940 finishMotionEvent(event, sendDone, true); 2941 mLastTrackballTime = Integer.MIN_VALUE; 2942 return; 2943 } 2944 2945 // Translate the trackball event into DPAD keys and try to deliver those. 2946 final TrackballAxis x = mTrackballAxisX; 2947 final TrackballAxis y = mTrackballAxisY; 2948 2949 long curTime = SystemClock.uptimeMillis(); 2950 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 2951 // It has been too long since the last movement, 2952 // so restart at the beginning. 2953 x.reset(0); 2954 y.reset(0); 2955 mLastTrackballTime = curTime; 2956 } 2957 2958 final int action = event.getAction(); 2959 final int metaState = event.getMetaState(); 2960 switch (action) { 2961 case MotionEvent.ACTION_DOWN: 2962 x.reset(2); 2963 y.reset(2); 2964 deliverKeyEvent(new KeyEvent(curTime, curTime, 2965 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2966 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2967 InputDevice.SOURCE_KEYBOARD), false); 2968 break; 2969 case MotionEvent.ACTION_UP: 2970 x.reset(2); 2971 y.reset(2); 2972 deliverKeyEvent(new KeyEvent(curTime, curTime, 2973 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 2974 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 2975 InputDevice.SOURCE_KEYBOARD), false); 2976 break; 2977 } 2978 2979 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 2980 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 2981 + " move=" + event.getX() 2982 + " / Y=" + y.position + " step=" 2983 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 2984 + " move=" + event.getY()); 2985 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 2986 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 2987 2988 // Generate DPAD events based on the trackball movement. 2989 // We pick the axis that has moved the most as the direction of 2990 // the DPAD. When we generate DPAD events for one axis, then the 2991 // other axis is reset -- we don't want to perform DPAD jumps due 2992 // to slight movements in the trackball when making major movements 2993 // along the other axis. 2994 int keycode = 0; 2995 int movement = 0; 2996 float accel = 1; 2997 if (xOff > yOff) { 2998 movement = x.generate((2/event.getXPrecision())); 2999 if (movement != 0) { 3000 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3001 : KeyEvent.KEYCODE_DPAD_LEFT; 3002 accel = x.acceleration; 3003 y.reset(2); 3004 } 3005 } else if (yOff > 0) { 3006 movement = y.generate((2/event.getYPrecision())); 3007 if (movement != 0) { 3008 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3009 : KeyEvent.KEYCODE_DPAD_UP; 3010 accel = y.acceleration; 3011 x.reset(2); 3012 } 3013 } 3014 3015 if (keycode != 0) { 3016 if (movement < 0) movement = -movement; 3017 int accelMovement = (int)(movement * accel); 3018 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3019 + " accelMovement=" + accelMovement 3020 + " accel=" + accel); 3021 if (accelMovement > movement) { 3022 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3023 + keycode); 3024 movement--; 3025 int repeatCount = accelMovement - movement; 3026 deliverKeyEvent(new KeyEvent(curTime, curTime, 3027 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3028 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3029 InputDevice.SOURCE_KEYBOARD), false); 3030 } 3031 while (movement > 0) { 3032 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3033 + keycode); 3034 movement--; 3035 curTime = SystemClock.uptimeMillis(); 3036 deliverKeyEvent(new KeyEvent(curTime, curTime, 3037 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3038 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3039 InputDevice.SOURCE_KEYBOARD), false); 3040 deliverKeyEvent(new KeyEvent(curTime, curTime, 3041 KeyEvent.ACTION_UP, keycode, 0, metaState, 3042 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3043 InputDevice.SOURCE_KEYBOARD), false); 3044 } 3045 mLastTrackballTime = curTime; 3046 } 3047 3048 // Unfortunately we can't tell whether the application consumed the keys, so 3049 // we always consider the trackball event handled. 3050 finishMotionEvent(event, sendDone, true); 3051 } 3052 3053 private void deliverGenericMotionEvent(MotionEvent event, boolean sendDone) { 3054 if (ViewDebug.DEBUG_LATENCY) { 3055 mInputEventDeliverTimeNanos = System.nanoTime(); 3056 } 3057 3058 if (mInputEventConsistencyVerifier != null) { 3059 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3060 } 3061 3062 final int source = event.getSource(); 3063 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3064 3065 // If there is no view, then the event will not be handled. 3066 if (mView == null || !mAdded) { 3067 if (isJoystick) { 3068 updateJoystickDirection(event, false); 3069 } 3070 finishMotionEvent(event, sendDone, false); 3071 return; 3072 } 3073 3074 // Deliver the event to the view. 3075 if (mView.dispatchGenericMotionEvent(event)) { 3076 if (isJoystick) { 3077 updateJoystickDirection(event, false); 3078 } 3079 finishMotionEvent(event, sendDone, true); 3080 return; 3081 } 3082 3083 if (isJoystick) { 3084 // Translate the joystick event into DPAD keys and try to deliver those. 3085 updateJoystickDirection(event, true); 3086 finishMotionEvent(event, sendDone, true); 3087 } else { 3088 finishMotionEvent(event, sendDone, false); 3089 } 3090 } 3091 3092 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3093 final long time = event.getEventTime(); 3094 final int metaState = event.getMetaState(); 3095 final int deviceId = event.getDeviceId(); 3096 final int source = event.getSource(); 3097 3098 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3099 if (xDirection == 0) { 3100 xDirection = joystickAxisValueToDirection(event.getX()); 3101 } 3102 3103 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3104 if (yDirection == 0) { 3105 yDirection = joystickAxisValueToDirection(event.getY()); 3106 } 3107 3108 if (xDirection != mLastJoystickXDirection) { 3109 if (mLastJoystickXKeyCode != 0) { 3110 deliverKeyEvent(new KeyEvent(time, time, 3111 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3112 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3113 mLastJoystickXKeyCode = 0; 3114 } 3115 3116 mLastJoystickXDirection = xDirection; 3117 3118 if (xDirection != 0 && synthesizeNewKeys) { 3119 mLastJoystickXKeyCode = xDirection > 0 3120 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3121 deliverKeyEvent(new KeyEvent(time, time, 3122 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3123 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3124 } 3125 } 3126 3127 if (yDirection != mLastJoystickYDirection) { 3128 if (mLastJoystickYKeyCode != 0) { 3129 deliverKeyEvent(new KeyEvent(time, time, 3130 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3131 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3132 mLastJoystickYKeyCode = 0; 3133 } 3134 3135 mLastJoystickYDirection = yDirection; 3136 3137 if (yDirection != 0 && synthesizeNewKeys) { 3138 mLastJoystickYKeyCode = yDirection > 0 3139 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3140 deliverKeyEvent(new KeyEvent(time, time, 3141 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3142 deviceId, 0, KeyEvent.FLAG_FALLBACK, source), false); 3143 } 3144 } 3145 } 3146 3147 private static int joystickAxisValueToDirection(float value) { 3148 if (value >= 0.5f) { 3149 return 1; 3150 } else if (value <= -0.5f) { 3151 return -1; 3152 } else { 3153 return 0; 3154 } 3155 } 3156 3157 /** 3158 * Returns true if the key is used for keyboard navigation. 3159 * @param keyEvent The key event. 3160 * @return True if the key is used for keyboard navigation. 3161 */ 3162 private static boolean isNavigationKey(KeyEvent keyEvent) { 3163 switch (keyEvent.getKeyCode()) { 3164 case KeyEvent.KEYCODE_DPAD_LEFT: 3165 case KeyEvent.KEYCODE_DPAD_RIGHT: 3166 case KeyEvent.KEYCODE_DPAD_UP: 3167 case KeyEvent.KEYCODE_DPAD_DOWN: 3168 case KeyEvent.KEYCODE_DPAD_CENTER: 3169 case KeyEvent.KEYCODE_PAGE_UP: 3170 case KeyEvent.KEYCODE_PAGE_DOWN: 3171 case KeyEvent.KEYCODE_MOVE_HOME: 3172 case KeyEvent.KEYCODE_MOVE_END: 3173 case KeyEvent.KEYCODE_TAB: 3174 case KeyEvent.KEYCODE_SPACE: 3175 case KeyEvent.KEYCODE_ENTER: 3176 return true; 3177 } 3178 return false; 3179 } 3180 3181 /** 3182 * Returns true if the key is used for typing. 3183 * @param keyEvent The key event. 3184 * @return True if the key is used for typing. 3185 */ 3186 private static boolean isTypingKey(KeyEvent keyEvent) { 3187 return keyEvent.getUnicodeChar() > 0; 3188 } 3189 3190 /** 3191 * See if the key event means we should leave touch mode (and leave touch mode if so). 3192 * @param event The key event. 3193 * @return Whether this key event should be consumed (meaning the act of 3194 * leaving touch mode alone is considered the event). 3195 */ 3196 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3197 // Only relevant in touch mode. 3198 if (!mAttachInfo.mInTouchMode) { 3199 return false; 3200 } 3201 3202 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3203 final int action = event.getAction(); 3204 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3205 return false; 3206 } 3207 3208 // Don't leave touch mode if the IME told us not to. 3209 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3210 return false; 3211 } 3212 3213 // If the key can be used for keyboard navigation then leave touch mode 3214 // and select a focused view if needed (in ensureTouchMode). 3215 // When a new focused view is selected, we consume the navigation key because 3216 // navigation doesn't make much sense unless a view already has focus so 3217 // the key's purpose is to set focus. 3218 if (isNavigationKey(event)) { 3219 return ensureTouchMode(false); 3220 } 3221 3222 // If the key can be used for typing then leave touch mode 3223 // and select a focused view if needed (in ensureTouchMode). 3224 // Always allow the view to process the typing key. 3225 if (isTypingKey(event)) { 3226 ensureTouchMode(false); 3227 return false; 3228 } 3229 3230 return false; 3231 } 3232 3233 int enqueuePendingEvent(Object event, boolean sendDone) { 3234 int seq = mPendingEventSeq+1; 3235 if (seq < 0) seq = 0; 3236 mPendingEventSeq = seq; 3237 mPendingEvents.put(seq, event); 3238 return sendDone ? seq : -seq; 3239 } 3240 3241 Object retrievePendingEvent(int seq) { 3242 if (seq < 0) seq = -seq; 3243 Object event = mPendingEvents.get(seq); 3244 if (event != null) { 3245 mPendingEvents.remove(seq); 3246 } 3247 return event; 3248 } 3249 3250 private void deliverKeyEvent(KeyEvent event, boolean sendDone) { 3251 if (ViewDebug.DEBUG_LATENCY) { 3252 mInputEventDeliverTimeNanos = System.nanoTime(); 3253 } 3254 3255 if (mInputEventConsistencyVerifier != null) { 3256 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3257 } 3258 3259 // If there is no view, then the event will not be handled. 3260 if (mView == null || !mAdded) { 3261 finishKeyEvent(event, sendDone, false); 3262 return; 3263 } 3264 3265 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3266 3267 // Perform predispatching before the IME. 3268 if (mView.dispatchKeyEventPreIme(event)) { 3269 finishKeyEvent(event, sendDone, true); 3270 return; 3271 } 3272 3273 // Dispatch to the IME before propagating down the view hierarchy. 3274 // The IME will eventually call back into handleFinishedEvent. 3275 if (mLastWasImTarget) { 3276 InputMethodManager imm = InputMethodManager.peekInstance(); 3277 if (imm != null) { 3278 int seq = enqueuePendingEvent(event, sendDone); 3279 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3280 + seq + " event=" + event); 3281 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3282 return; 3283 } 3284 } 3285 3286 // Not dispatching to IME, continue with post IME actions. 3287 deliverKeyEventPostIme(event, sendDone); 3288 } 3289 3290 private void handleFinishedEvent(int seq, boolean handled) { 3291 final KeyEvent event = (KeyEvent)retrievePendingEvent(seq); 3292 if (DEBUG_IMF) Log.v(TAG, "IME finished event: seq=" + seq 3293 + " handled=" + handled + " event=" + event); 3294 if (event != null) { 3295 final boolean sendDone = seq >= 0; 3296 if (handled) { 3297 finishKeyEvent(event, sendDone, true); 3298 } else { 3299 deliverKeyEventPostIme(event, sendDone); 3300 } 3301 } 3302 } 3303 3304 private void deliverKeyEventPostIme(KeyEvent event, boolean sendDone) { 3305 if (ViewDebug.DEBUG_LATENCY) { 3306 mInputEventDeliverPostImeTimeNanos = System.nanoTime(); 3307 } 3308 3309 // If the view went away, then the event will not be handled. 3310 if (mView == null || !mAdded) { 3311 finishKeyEvent(event, sendDone, false); 3312 return; 3313 } 3314 3315 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3316 if (checkForLeavingTouchModeAndConsume(event)) { 3317 finishKeyEvent(event, sendDone, true); 3318 return; 3319 } 3320 3321 // Make sure the fallback event policy sees all keys that will be delivered to the 3322 // view hierarchy. 3323 mFallbackEventHandler.preDispatchKeyEvent(event); 3324 3325 // Deliver the key to the view hierarchy. 3326 if (mView.dispatchKeyEvent(event)) { 3327 finishKeyEvent(event, sendDone, true); 3328 return; 3329 } 3330 3331 // If the Control modifier is held, try to interpret the key as a shortcut. 3332 if (event.getAction() == KeyEvent.ACTION_UP 3333 && event.isCtrlPressed() 3334 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3335 if (mView.dispatchKeyShortcutEvent(event)) { 3336 finishKeyEvent(event, sendDone, true); 3337 return; 3338 } 3339 } 3340 3341 // Apply the fallback event policy. 3342 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3343 finishKeyEvent(event, sendDone, true); 3344 return; 3345 } 3346 3347 // Handle automatic focus changes. 3348 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3349 int direction = 0; 3350 switch (event.getKeyCode()) { 3351 case KeyEvent.KEYCODE_DPAD_LEFT: 3352 if (event.hasNoModifiers()) { 3353 direction = View.FOCUS_LEFT; 3354 } 3355 break; 3356 case KeyEvent.KEYCODE_DPAD_RIGHT: 3357 if (event.hasNoModifiers()) { 3358 direction = View.FOCUS_RIGHT; 3359 } 3360 break; 3361 case KeyEvent.KEYCODE_DPAD_UP: 3362 if (event.hasNoModifiers()) { 3363 direction = View.FOCUS_UP; 3364 } 3365 break; 3366 case KeyEvent.KEYCODE_DPAD_DOWN: 3367 if (event.hasNoModifiers()) { 3368 direction = View.FOCUS_DOWN; 3369 } 3370 break; 3371 case KeyEvent.KEYCODE_TAB: 3372 if (event.hasNoModifiers()) { 3373 direction = View.FOCUS_FORWARD; 3374 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3375 direction = View.FOCUS_BACKWARD; 3376 } 3377 break; 3378 } 3379 3380 if (direction != 0) { 3381 View focused = mView != null ? mView.findFocus() : null; 3382 if (focused != null) { 3383 View v = focused.focusSearch(direction); 3384 if (v != null && v != focused) { 3385 // do the math the get the interesting rect 3386 // of previous focused into the coord system of 3387 // newly focused view 3388 focused.getFocusedRect(mTempRect); 3389 if (mView instanceof ViewGroup) { 3390 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3391 focused, mTempRect); 3392 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3393 v, mTempRect); 3394 } 3395 if (v.requestFocus(direction, mTempRect)) { 3396 playSoundEffect( 3397 SoundEffectConstants.getContantForFocusDirection(direction)); 3398 finishKeyEvent(event, sendDone, true); 3399 return; 3400 } 3401 } 3402 3403 // Give the focused view a last chance to handle the dpad key. 3404 if (mView.dispatchUnhandledMove(focused, direction)) { 3405 finishKeyEvent(event, sendDone, true); 3406 return; 3407 } 3408 } 3409 } 3410 } 3411 3412 // Key was unhandled. 3413 finishKeyEvent(event, sendDone, false); 3414 } 3415 3416 private void finishKeyEvent(KeyEvent event, boolean sendDone, boolean handled) { 3417 if (sendDone) { 3418 finishInputEvent(event, handled); 3419 } 3420 } 3421 3422 /* drag/drop */ 3423 void setLocalDragState(Object obj) { 3424 mLocalDragState = obj; 3425 } 3426 3427 private void handleDragEvent(DragEvent event) { 3428 // From the root, only drag start/end/location are dispatched. entered/exited 3429 // are determined and dispatched by the viewgroup hierarchy, who then report 3430 // that back here for ultimate reporting back to the framework. 3431 if (mView != null && mAdded) { 3432 final int what = event.mAction; 3433 3434 if (what == DragEvent.ACTION_DRAG_EXITED) { 3435 // A direct EXITED event means that the window manager knows we've just crossed 3436 // a window boundary, so the current drag target within this one must have 3437 // just been exited. Send it the usual notifications and then we're done 3438 // for now. 3439 mView.dispatchDragEvent(event); 3440 } else { 3441 // Cache the drag description when the operation starts, then fill it in 3442 // on subsequent calls as a convenience 3443 if (what == DragEvent.ACTION_DRAG_STARTED) { 3444 mCurrentDragView = null; // Start the current-recipient tracking 3445 mDragDescription = event.mClipDescription; 3446 } else { 3447 event.mClipDescription = mDragDescription; 3448 } 3449 3450 // For events with a [screen] location, translate into window coordinates 3451 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3452 mDragPoint.set(event.mX, event.mY); 3453 if (mTranslator != null) { 3454 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3455 } 3456 3457 if (mCurScrollY != 0) { 3458 mDragPoint.offset(0, mCurScrollY); 3459 } 3460 3461 event.mX = mDragPoint.x; 3462 event.mY = mDragPoint.y; 3463 } 3464 3465 // Remember who the current drag target is pre-dispatch 3466 final View prevDragView = mCurrentDragView; 3467 3468 // Now dispatch the drag/drop event 3469 boolean result = mView.dispatchDragEvent(event); 3470 3471 // If we changed apparent drag target, tell the OS about it 3472 if (prevDragView != mCurrentDragView) { 3473 try { 3474 if (prevDragView != null) { 3475 sWindowSession.dragRecipientExited(mWindow); 3476 } 3477 if (mCurrentDragView != null) { 3478 sWindowSession.dragRecipientEntered(mWindow); 3479 } 3480 } catch (RemoteException e) { 3481 Slog.e(TAG, "Unable to note drag target change"); 3482 } 3483 } 3484 3485 // Report the drop result when we're done 3486 if (what == DragEvent.ACTION_DROP) { 3487 mDragDescription = null; 3488 try { 3489 Log.i(TAG, "Reporting drop result: " + result); 3490 sWindowSession.reportDropResult(mWindow, result); 3491 } catch (RemoteException e) { 3492 Log.e(TAG, "Unable to report drop result"); 3493 } 3494 } 3495 3496 // When the drag operation ends, release any local state object 3497 // that may have been in use 3498 if (what == DragEvent.ACTION_DRAG_ENDED) { 3499 setLocalDragState(null); 3500 } 3501 } 3502 } 3503 event.recycle(); 3504 } 3505 3506 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3507 if (mSeq != args.seq) { 3508 // The sequence has changed, so we need to update our value and make 3509 // sure to do a traversal afterward so the window manager is given our 3510 // most recent data. 3511 mSeq = args.seq; 3512 mAttachInfo.mForceReportNewAttributes = true; 3513 scheduleTraversals(); 3514 } 3515 if (mView == null) return; 3516 if (args.localChanges != 0) { 3517 if (mAttachInfo != null) { 3518 mAttachInfo.mSystemUiVisibility = 3519 (mAttachInfo.mSystemUiVisibility&~args.localChanges) 3520 | (args.localValue&args.localChanges); 3521 } 3522 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3523 mAttachInfo.mRecomputeGlobalAttributes = true; 3524 scheduleTraversals(); 3525 } 3526 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3527 } 3528 3529 public void getLastTouchPoint(Point outLocation) { 3530 outLocation.x = (int) mLastTouchPoint.x; 3531 outLocation.y = (int) mLastTouchPoint.y; 3532 } 3533 3534 public void setDragFocus(View newDragTarget) { 3535 if (mCurrentDragView != newDragTarget) { 3536 mCurrentDragView = newDragTarget; 3537 } 3538 } 3539 3540 private AudioManager getAudioManager() { 3541 if (mView == null) { 3542 throw new IllegalStateException("getAudioManager called when there is no mView"); 3543 } 3544 if (mAudioManager == null) { 3545 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3546 } 3547 return mAudioManager; 3548 } 3549 3550 public AccessibilityInteractionController getAccessibilityInteractionController() { 3551 if (mView == null) { 3552 throw new IllegalStateException("getAccessibilityInteractionController" 3553 + " called when there is no mView"); 3554 } 3555 if (mAccessibilityInteractionController == null) { 3556 mAccessibilityInteractionController = new AccessibilityInteractionController(); 3557 } 3558 return mAccessibilityInteractionController; 3559 } 3560 3561 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3562 boolean insetsPending) throws RemoteException { 3563 3564 float appScale = mAttachInfo.mApplicationScale; 3565 boolean restore = false; 3566 if (params != null && mTranslator != null) { 3567 restore = true; 3568 params.backup(); 3569 mTranslator.translateWindowLayout(params); 3570 } 3571 if (params != null) { 3572 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3573 } 3574 mPendingConfiguration.seq = 0; 3575 //Log.d(TAG, ">>>>>> CALLING relayout"); 3576 if (params != null && mOrigWindowType != params.type) { 3577 // For compatibility with old apps, don't crash here. 3578 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3579 Slog.w(TAG, "Window type can not be changed after " 3580 + "the window is added; ignoring change of " + mView); 3581 params.type = mOrigWindowType; 3582 } 3583 } 3584 int relayoutResult = sWindowSession.relayout( 3585 mWindow, mSeq, params, 3586 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3587 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3588 viewVisibility, insetsPending, mWinFrame, 3589 mPendingContentInsets, mPendingVisibleInsets, 3590 mPendingConfiguration, mSurface); 3591 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3592 if (restore) { 3593 params.restore(); 3594 } 3595 3596 if (mTranslator != null) { 3597 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3598 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3599 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3600 } 3601 return relayoutResult; 3602 } 3603 3604 /** 3605 * {@inheritDoc} 3606 */ 3607 public void playSoundEffect(int effectId) { 3608 checkThread(); 3609 3610 try { 3611 final AudioManager audioManager = getAudioManager(); 3612 3613 switch (effectId) { 3614 case SoundEffectConstants.CLICK: 3615 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3616 return; 3617 case SoundEffectConstants.NAVIGATION_DOWN: 3618 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3619 return; 3620 case SoundEffectConstants.NAVIGATION_LEFT: 3621 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3622 return; 3623 case SoundEffectConstants.NAVIGATION_RIGHT: 3624 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3625 return; 3626 case SoundEffectConstants.NAVIGATION_UP: 3627 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3628 return; 3629 default: 3630 throw new IllegalArgumentException("unknown effect id " + effectId + 3631 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3632 } 3633 } catch (IllegalStateException e) { 3634 // Exception thrown by getAudioManager() when mView is null 3635 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3636 e.printStackTrace(); 3637 } 3638 } 3639 3640 /** 3641 * {@inheritDoc} 3642 */ 3643 public boolean performHapticFeedback(int effectId, boolean always) { 3644 try { 3645 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3646 } catch (RemoteException e) { 3647 return false; 3648 } 3649 } 3650 3651 /** 3652 * {@inheritDoc} 3653 */ 3654 public View focusSearch(View focused, int direction) { 3655 checkThread(); 3656 if (!(mView instanceof ViewGroup)) { 3657 return null; 3658 } 3659 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3660 } 3661 3662 public void debug() { 3663 mView.debug(); 3664 } 3665 3666 public void dumpGfxInfo(PrintWriter pw, int[] info) { 3667 if (mView != null) { 3668 getGfxInfo(mView, info); 3669 } else { 3670 info[0] = info[1] = 0; 3671 } 3672 } 3673 3674 private void getGfxInfo(View view, int[] info) { 3675 DisplayList displayList = view.mDisplayList; 3676 info[0]++; 3677 if (displayList != null) { 3678 info[1] += displayList.getSize(); 3679 } 3680 3681 if (view instanceof ViewGroup) { 3682 ViewGroup group = (ViewGroup) view; 3683 3684 int count = group.getChildCount(); 3685 for (int i = 0; i < count; i++) { 3686 getGfxInfo(group.getChildAt(i), info); 3687 } 3688 } 3689 } 3690 3691 public void die(boolean immediate) { 3692 if (immediate) { 3693 doDie(); 3694 } else { 3695 sendEmptyMessage(DIE); 3696 } 3697 } 3698 3699 void doDie() { 3700 checkThread(); 3701 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3702 synchronized (this) { 3703 if (mAdded) { 3704 mAdded = false; 3705 dispatchDetachedFromWindow(); 3706 } 3707 3708 if (mAdded && !mFirst) { 3709 destroyHardwareRenderer(); 3710 3711 int viewVisibility = mView.getVisibility(); 3712 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3713 if (mWindowAttributesChanged || viewVisibilityChanged) { 3714 // If layout params have been changed, first give them 3715 // to the window manager to make sure it has the correct 3716 // animation info. 3717 try { 3718 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3719 & WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { 3720 sWindowSession.finishDrawing(mWindow); 3721 } 3722 } catch (RemoteException e) { 3723 } 3724 } 3725 3726 mSurface.release(); 3727 } 3728 } 3729 } 3730 3731 public void requestUpdateConfiguration(Configuration config) { 3732 Message msg = obtainMessage(UPDATE_CONFIGURATION, config); 3733 sendMessage(msg); 3734 } 3735 3736 private void destroyHardwareRenderer() { 3737 if (mAttachInfo.mHardwareRenderer != null) { 3738 mAttachInfo.mHardwareRenderer.destroy(true); 3739 mAttachInfo.mHardwareRenderer = null; 3740 mAttachInfo.mHardwareAccelerated = false; 3741 } 3742 } 3743 3744 public void dispatchFinishedEvent(int seq, boolean handled) { 3745 Message msg = obtainMessage(FINISHED_EVENT); 3746 msg.arg1 = seq; 3747 msg.arg2 = handled ? 1 : 0; 3748 sendMessage(msg); 3749 } 3750 3751 public void dispatchResized(int w, int h, Rect coveredInsets, 3752 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 3753 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 3754 + " h=" + h + " coveredInsets=" + coveredInsets.toShortString() 3755 + " visibleInsets=" + visibleInsets.toShortString() 3756 + " reportDraw=" + reportDraw); 3757 Message msg = obtainMessage(reportDraw ? RESIZED_REPORT :RESIZED); 3758 if (mTranslator != null) { 3759 mTranslator.translateRectInScreenToAppWindow(coveredInsets); 3760 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 3761 w *= mTranslator.applicationInvertedScale; 3762 h *= mTranslator.applicationInvertedScale; 3763 } 3764 msg.arg1 = w; 3765 msg.arg2 = h; 3766 ResizedInfo ri = new ResizedInfo(); 3767 ri.coveredInsets = new Rect(coveredInsets); 3768 ri.visibleInsets = new Rect(visibleInsets); 3769 ri.newConfig = newConfig; 3770 msg.obj = ri; 3771 sendMessage(msg); 3772 } 3773 3774 private long mInputEventReceiveTimeNanos; 3775 private long mInputEventDeliverTimeNanos; 3776 private long mInputEventDeliverPostImeTimeNanos; 3777 private InputQueue.FinishedCallback mFinishedCallback; 3778 3779 private final InputHandler mInputHandler = new InputHandler() { 3780 public void handleKey(KeyEvent event, InputQueue.FinishedCallback finishedCallback) { 3781 startInputEvent(finishedCallback); 3782 dispatchKey(event, true); 3783 } 3784 3785 public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) { 3786 startInputEvent(finishedCallback); 3787 dispatchMotion(event, true); 3788 } 3789 }; 3790 3791 /** 3792 * Utility class used to queue up input events which are then handled during 3793 * performTraversals(). Doing it this way allows us to ensure that we are up to date with 3794 * all input events just prior to drawing, instead of placing those events on the regular 3795 * handler queue, potentially behind a drawing event. 3796 */ 3797 static class InputEventMessage { 3798 Message mMessage; 3799 InputEventMessage mNext; 3800 3801 private static final Object sPoolSync = new Object(); 3802 private static InputEventMessage sPool; 3803 private static int sPoolSize = 0; 3804 3805 private static final int MAX_POOL_SIZE = 10; 3806 3807 private InputEventMessage(Message m) { 3808 mMessage = m; 3809 mNext = null; 3810 } 3811 3812 /** 3813 * Return a new Message instance from the global pool. Allows us to 3814 * avoid allocating new objects in many cases. 3815 */ 3816 public static InputEventMessage obtain(Message msg) { 3817 synchronized (sPoolSync) { 3818 if (sPool != null) { 3819 InputEventMessage m = sPool; 3820 sPool = m.mNext; 3821 m.mNext = null; 3822 sPoolSize--; 3823 m.mMessage = msg; 3824 return m; 3825 } 3826 } 3827 return new InputEventMessage(msg); 3828 } 3829 3830 /** 3831 * Return the message to the pool. 3832 */ 3833 public void recycle() { 3834 mMessage.recycle(); 3835 synchronized (sPoolSync) { 3836 if (sPoolSize < MAX_POOL_SIZE) { 3837 mNext = sPool; 3838 sPool = this; 3839 sPoolSize++; 3840 } 3841 } 3842 3843 } 3844 } 3845 3846 /** 3847 * Place the input event message at the end of the current pending list 3848 */ 3849 private void enqueueInputEvent(Message msg, long when) { 3850 InputEventMessage inputMessage = InputEventMessage.obtain(msg); 3851 if (mPendingInputEvents == null) { 3852 mPendingInputEvents = inputMessage; 3853 } else { 3854 InputEventMessage currMessage = mPendingInputEvents; 3855 while (currMessage.mNext != null) { 3856 currMessage = currMessage.mNext; 3857 } 3858 currMessage.mNext = inputMessage; 3859 } 3860 sendEmptyMessageAtTime(PROCESS_INPUT_EVENTS, when); 3861 } 3862 3863 public void dispatchKey(KeyEvent event) { 3864 dispatchKey(event, false); 3865 } 3866 3867 private void dispatchKey(KeyEvent event, boolean sendDone) { 3868 //noinspection ConstantConditions 3869 if (false && event.getAction() == KeyEvent.ACTION_DOWN) { 3870 if (event.getKeyCode() == KeyEvent.KEYCODE_CAMERA) { 3871 if (DBG) Log.d("keydisp", "==================================================="); 3872 if (DBG) Log.d("keydisp", "Focused view Hierarchy is:"); 3873 3874 debug(); 3875 3876 if (DBG) Log.d("keydisp", "==================================================="); 3877 } 3878 } 3879 3880 Message msg = obtainMessage(DISPATCH_KEY); 3881 msg.obj = event; 3882 msg.arg1 = sendDone ? 1 : 0; 3883 3884 if (LOCAL_LOGV) Log.v( 3885 TAG, "sending key " + event + " to " + mView); 3886 3887 enqueueInputEvent(msg, event.getEventTime()); 3888 } 3889 3890 private void dispatchMotion(MotionEvent event, boolean sendDone) { 3891 int source = event.getSource(); 3892 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3893 dispatchPointer(event, sendDone); 3894 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3895 dispatchTrackball(event, sendDone); 3896 } else { 3897 dispatchGenericMotion(event, sendDone); 3898 } 3899 } 3900 3901 private void dispatchPointer(MotionEvent event, boolean sendDone) { 3902 Message msg = obtainMessage(DISPATCH_POINTER); 3903 msg.obj = event; 3904 msg.arg1 = sendDone ? 1 : 0; 3905 enqueueInputEvent(msg, event.getEventTime()); 3906 } 3907 3908 private void dispatchTrackball(MotionEvent event, boolean sendDone) { 3909 Message msg = obtainMessage(DISPATCH_TRACKBALL); 3910 msg.obj = event; 3911 msg.arg1 = sendDone ? 1 : 0; 3912 enqueueInputEvent(msg, event.getEventTime()); 3913 } 3914 3915 private void dispatchGenericMotion(MotionEvent event, boolean sendDone) { 3916 Message msg = obtainMessage(DISPATCH_GENERIC_MOTION); 3917 msg.obj = event; 3918 msg.arg1 = sendDone ? 1 : 0; 3919 enqueueInputEvent(msg, event.getEventTime()); 3920 } 3921 3922 public void dispatchAppVisibility(boolean visible) { 3923 Message msg = obtainMessage(DISPATCH_APP_VISIBILITY); 3924 msg.arg1 = visible ? 1 : 0; 3925 sendMessage(msg); 3926 } 3927 3928 public void dispatchGetNewSurface() { 3929 Message msg = obtainMessage(DISPATCH_GET_NEW_SURFACE); 3930 sendMessage(msg); 3931 } 3932 3933 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 3934 Message msg = Message.obtain(); 3935 msg.what = WINDOW_FOCUS_CHANGED; 3936 msg.arg1 = hasFocus ? 1 : 0; 3937 msg.arg2 = inTouchMode ? 1 : 0; 3938 sendMessage(msg); 3939 } 3940 3941 public void dispatchCloseSystemDialogs(String reason) { 3942 Message msg = Message.obtain(); 3943 msg.what = CLOSE_SYSTEM_DIALOGS; 3944 msg.obj = reason; 3945 sendMessage(msg); 3946 } 3947 3948 public void dispatchDragEvent(DragEvent event) { 3949 final int what; 3950 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 3951 what = DISPATCH_DRAG_LOCATION_EVENT; 3952 removeMessages(what); 3953 } else { 3954 what = DISPATCH_DRAG_EVENT; 3955 } 3956 Message msg = obtainMessage(what, event); 3957 sendMessage(msg); 3958 } 3959 3960 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 3961 int localValue, int localChanges) { 3962 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 3963 args.seq = seq; 3964 args.globalVisibility = globalVisibility; 3965 args.localValue = localValue; 3966 args.localChanges = localChanges; 3967 sendMessage(obtainMessage(DISPATCH_SYSTEM_UI_VISIBILITY, args)); 3968 } 3969 3970 /** 3971 * The window is getting focus so if there is anything focused/selected 3972 * send an {@link AccessibilityEvent} to announce that. 3973 */ 3974 private void sendAccessibilityEvents() { 3975 if (!mAccessibilityManager.isEnabled()) { 3976 return; 3977 } 3978 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3979 View focusedView = mView.findFocus(); 3980 if (focusedView != null && focusedView != mView) { 3981 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 3982 } 3983 } 3984 3985 /** 3986 * Post a callback to send a 3987 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 3988 * This event is send at most once every 3989 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 3990 */ 3991 private void postSendWindowContentChangedCallback() { 3992 if (mSendWindowContentChangedAccessibilityEvent == null) { 3993 mSendWindowContentChangedAccessibilityEvent = 3994 new SendWindowContentChangedAccessibilityEvent(); 3995 } 3996 if (!mSendWindowContentChangedAccessibilityEvent.mIsPending) { 3997 mSendWindowContentChangedAccessibilityEvent.mIsPending = true; 3998 postDelayed(mSendWindowContentChangedAccessibilityEvent, 3999 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4000 } 4001 } 4002 4003 /** 4004 * Remove a posted callback to send a 4005 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4006 */ 4007 private void removeSendWindowContentChangedCallback() { 4008 if (mSendWindowContentChangedAccessibilityEvent != null) { 4009 removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4010 } 4011 } 4012 4013 public boolean showContextMenuForChild(View originalView) { 4014 return false; 4015 } 4016 4017 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4018 return null; 4019 } 4020 4021 public void createContextMenu(ContextMenu menu) { 4022 } 4023 4024 public void childDrawableStateChanged(View child) { 4025 } 4026 4027 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4028 if (mView == null) { 4029 return false; 4030 } 4031 mAccessibilityManager.sendAccessibilityEvent(event); 4032 return true; 4033 } 4034 4035 void checkThread() { 4036 if (mThread != Thread.currentThread()) { 4037 throw new CalledFromWrongThreadException( 4038 "Only the original thread that created a view hierarchy can touch its views."); 4039 } 4040 } 4041 4042 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4043 // ViewAncestor never intercepts touch event, so this can be a no-op 4044 } 4045 4046 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4047 boolean immediate) { 4048 return scrollToRectOrFocus(rectangle, immediate); 4049 } 4050 4051 class TakenSurfaceHolder extends BaseSurfaceHolder { 4052 @Override 4053 public boolean onAllowLockCanvas() { 4054 return mDrawingAllowed; 4055 } 4056 4057 @Override 4058 public void onRelayoutContainer() { 4059 // Not currently interesting -- from changing between fixed and layout size. 4060 } 4061 4062 public void setFormat(int format) { 4063 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4064 } 4065 4066 public void setType(int type) { 4067 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4068 } 4069 4070 @Override 4071 public void onUpdateSurface() { 4072 // We take care of format and type changes on our own. 4073 throw new IllegalStateException("Shouldn't be here"); 4074 } 4075 4076 public boolean isCreating() { 4077 return mIsCreating; 4078 } 4079 4080 @Override 4081 public void setFixedSize(int width, int height) { 4082 throw new UnsupportedOperationException( 4083 "Currently only support sizing from layout"); 4084 } 4085 4086 public void setKeepScreenOn(boolean screenOn) { 4087 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4088 } 4089 } 4090 4091 static class InputMethodCallback extends IInputMethodCallback.Stub { 4092 private WeakReference<ViewRootImpl> mViewAncestor; 4093 4094 public InputMethodCallback(ViewRootImpl viewAncestor) { 4095 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4096 } 4097 4098 public void finishedEvent(int seq, boolean handled) { 4099 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4100 if (viewAncestor != null) { 4101 viewAncestor.dispatchFinishedEvent(seq, handled); 4102 } 4103 } 4104 4105 public void sessionCreated(IInputMethodSession session) { 4106 // Stub -- not for use in the client. 4107 } 4108 } 4109 4110 static class W extends IWindow.Stub { 4111 private final WeakReference<ViewRootImpl> mViewAncestor; 4112 4113 W(ViewRootImpl viewAncestor) { 4114 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4115 } 4116 4117 public void resized(int w, int h, Rect coveredInsets, Rect visibleInsets, 4118 boolean reportDraw, Configuration newConfig) { 4119 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4120 if (viewAncestor != null) { 4121 viewAncestor.dispatchResized(w, h, coveredInsets, visibleInsets, reportDraw, 4122 newConfig); 4123 } 4124 } 4125 4126 public void dispatchAppVisibility(boolean visible) { 4127 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4128 if (viewAncestor != null) { 4129 viewAncestor.dispatchAppVisibility(visible); 4130 } 4131 } 4132 4133 public void dispatchGetNewSurface() { 4134 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4135 if (viewAncestor != null) { 4136 viewAncestor.dispatchGetNewSurface(); 4137 } 4138 } 4139 4140 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4141 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4142 if (viewAncestor != null) { 4143 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4144 } 4145 } 4146 4147 private static int checkCallingPermission(String permission) { 4148 try { 4149 return ActivityManagerNative.getDefault().checkPermission( 4150 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4151 } catch (RemoteException e) { 4152 return PackageManager.PERMISSION_DENIED; 4153 } 4154 } 4155 4156 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4157 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4158 if (viewAncestor != null) { 4159 final View view = viewAncestor.mView; 4160 if (view != null) { 4161 if (checkCallingPermission(Manifest.permission.DUMP) != 4162 PackageManager.PERMISSION_GRANTED) { 4163 throw new SecurityException("Insufficient permissions to invoke" 4164 + " executeCommand() from pid=" + Binder.getCallingPid() 4165 + ", uid=" + Binder.getCallingUid()); 4166 } 4167 4168 OutputStream clientStream = null; 4169 try { 4170 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4171 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4172 } catch (IOException e) { 4173 e.printStackTrace(); 4174 } finally { 4175 if (clientStream != null) { 4176 try { 4177 clientStream.close(); 4178 } catch (IOException e) { 4179 e.printStackTrace(); 4180 } 4181 } 4182 } 4183 } 4184 } 4185 } 4186 4187 public void closeSystemDialogs(String reason) { 4188 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4189 if (viewAncestor != null) { 4190 viewAncestor.dispatchCloseSystemDialogs(reason); 4191 } 4192 } 4193 4194 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4195 boolean sync) { 4196 if (sync) { 4197 try { 4198 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4199 } catch (RemoteException e) { 4200 } 4201 } 4202 } 4203 4204 public void dispatchWallpaperCommand(String action, int x, int y, 4205 int z, Bundle extras, boolean sync) { 4206 if (sync) { 4207 try { 4208 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4209 } catch (RemoteException e) { 4210 } 4211 } 4212 } 4213 4214 /* Drag/drop */ 4215 public void dispatchDragEvent(DragEvent event) { 4216 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4217 if (viewAncestor != null) { 4218 viewAncestor.dispatchDragEvent(event); 4219 } 4220 } 4221 4222 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4223 int localValue, int localChanges) { 4224 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4225 if (viewAncestor != null) { 4226 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4227 localValue, localChanges); 4228 } 4229 } 4230 } 4231 4232 /** 4233 * Maintains state information for a single trackball axis, generating 4234 * discrete (DPAD) movements based on raw trackball motion. 4235 */ 4236 static final class TrackballAxis { 4237 /** 4238 * The maximum amount of acceleration we will apply. 4239 */ 4240 static final float MAX_ACCELERATION = 20; 4241 4242 /** 4243 * The maximum amount of time (in milliseconds) between events in order 4244 * for us to consider the user to be doing fast trackball movements, 4245 * and thus apply an acceleration. 4246 */ 4247 static final long FAST_MOVE_TIME = 150; 4248 4249 /** 4250 * Scaling factor to the time (in milliseconds) between events to how 4251 * much to multiple/divide the current acceleration. When movement 4252 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4253 * FAST_MOVE_TIME it divides it. 4254 */ 4255 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4256 4257 float position; 4258 float absPosition; 4259 float acceleration = 1; 4260 long lastMoveTime = 0; 4261 int step; 4262 int dir; 4263 int nonAccelMovement; 4264 4265 void reset(int _step) { 4266 position = 0; 4267 acceleration = 1; 4268 lastMoveTime = 0; 4269 step = _step; 4270 dir = 0; 4271 } 4272 4273 /** 4274 * Add trackball movement into the state. If the direction of movement 4275 * has been reversed, the state is reset before adding the 4276 * movement (so that you don't have to compensate for any previously 4277 * collected movement before see the result of the movement in the 4278 * new direction). 4279 * 4280 * @return Returns the absolute value of the amount of movement 4281 * collected so far. 4282 */ 4283 float collect(float off, long time, String axis) { 4284 long normTime; 4285 if (off > 0) { 4286 normTime = (long)(off * FAST_MOVE_TIME); 4287 if (dir < 0) { 4288 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4289 position = 0; 4290 step = 0; 4291 acceleration = 1; 4292 lastMoveTime = 0; 4293 } 4294 dir = 1; 4295 } else if (off < 0) { 4296 normTime = (long)((-off) * FAST_MOVE_TIME); 4297 if (dir > 0) { 4298 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4299 position = 0; 4300 step = 0; 4301 acceleration = 1; 4302 lastMoveTime = 0; 4303 } 4304 dir = -1; 4305 } else { 4306 normTime = 0; 4307 } 4308 4309 // The number of milliseconds between each movement that is 4310 // considered "normal" and will not result in any acceleration 4311 // or deceleration, scaled by the offset we have here. 4312 if (normTime > 0) { 4313 long delta = time - lastMoveTime; 4314 lastMoveTime = time; 4315 float acc = acceleration; 4316 if (delta < normTime) { 4317 // The user is scrolling rapidly, so increase acceleration. 4318 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4319 if (scale > 1) acc *= scale; 4320 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4321 + off + " normTime=" + normTime + " delta=" + delta 4322 + " scale=" + scale + " acc=" + acc); 4323 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4324 } else { 4325 // The user is scrolling slowly, so decrease acceleration. 4326 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4327 if (scale > 1) acc /= scale; 4328 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4329 + off + " normTime=" + normTime + " delta=" + delta 4330 + " scale=" + scale + " acc=" + acc); 4331 acceleration = acc > 1 ? acc : 1; 4332 } 4333 } 4334 position += off; 4335 return (absPosition = Math.abs(position)); 4336 } 4337 4338 /** 4339 * Generate the number of discrete movement events appropriate for 4340 * the currently collected trackball movement. 4341 * 4342 * @param precision The minimum movement required to generate the 4343 * first discrete movement. 4344 * 4345 * @return Returns the number of discrete movements, either positive 4346 * or negative, or 0 if there is not enough trackball movement yet 4347 * for a discrete movement. 4348 */ 4349 int generate(float precision) { 4350 int movement = 0; 4351 nonAccelMovement = 0; 4352 do { 4353 final int dir = position >= 0 ? 1 : -1; 4354 switch (step) { 4355 // If we are going to execute the first step, then we want 4356 // to do this as soon as possible instead of waiting for 4357 // a full movement, in order to make things look responsive. 4358 case 0: 4359 if (absPosition < precision) { 4360 return movement; 4361 } 4362 movement += dir; 4363 nonAccelMovement += dir; 4364 step = 1; 4365 break; 4366 // If we have generated the first movement, then we need 4367 // to wait for the second complete trackball motion before 4368 // generating the second discrete movement. 4369 case 1: 4370 if (absPosition < 2) { 4371 return movement; 4372 } 4373 movement += dir; 4374 nonAccelMovement += dir; 4375 position += dir > 0 ? -2 : 2; 4376 absPosition = Math.abs(position); 4377 step = 2; 4378 break; 4379 // After the first two, we generate discrete movements 4380 // consistently with the trackball, applying an acceleration 4381 // if the trackball is moving quickly. This is a simple 4382 // acceleration on top of what we already compute based 4383 // on how quickly the wheel is being turned, to apply 4384 // a longer increasing acceleration to continuous movement 4385 // in one direction. 4386 default: 4387 if (absPosition < 1) { 4388 return movement; 4389 } 4390 movement += dir; 4391 position += dir >= 0 ? -1 : 1; 4392 absPosition = Math.abs(position); 4393 float acc = acceleration; 4394 acc *= 1.1f; 4395 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 4396 break; 4397 } 4398 } while (true); 4399 } 4400 } 4401 4402 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 4403 public CalledFromWrongThreadException(String msg) { 4404 super(msg); 4405 } 4406 } 4407 4408 private SurfaceHolder mHolder = new SurfaceHolder() { 4409 // we only need a SurfaceHolder for opengl. it would be nice 4410 // to implement everything else though, especially the callback 4411 // support (opengl doesn't make use of it right now, but eventually 4412 // will). 4413 public Surface getSurface() { 4414 return mSurface; 4415 } 4416 4417 public boolean isCreating() { 4418 return false; 4419 } 4420 4421 public void addCallback(Callback callback) { 4422 } 4423 4424 public void removeCallback(Callback callback) { 4425 } 4426 4427 public void setFixedSize(int width, int height) { 4428 } 4429 4430 public void setSizeFromLayout() { 4431 } 4432 4433 public void setFormat(int format) { 4434 } 4435 4436 public void setType(int type) { 4437 } 4438 4439 public void setKeepScreenOn(boolean screenOn) { 4440 } 4441 4442 public Canvas lockCanvas() { 4443 return null; 4444 } 4445 4446 public Canvas lockCanvas(Rect dirty) { 4447 return null; 4448 } 4449 4450 public void unlockCanvasAndPost(Canvas canvas) { 4451 } 4452 public Rect getSurfaceFrame() { 4453 return null; 4454 } 4455 }; 4456 4457 static RunQueue getRunQueue() { 4458 RunQueue rq = sRunQueues.get(); 4459 if (rq != null) { 4460 return rq; 4461 } 4462 rq = new RunQueue(); 4463 sRunQueues.set(rq); 4464 return rq; 4465 } 4466 4467 /** 4468 * @hide 4469 */ 4470 static final class RunQueue { 4471 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 4472 4473 void post(Runnable action) { 4474 postDelayed(action, 0); 4475 } 4476 4477 void postDelayed(Runnable action, long delayMillis) { 4478 HandlerAction handlerAction = new HandlerAction(); 4479 handlerAction.action = action; 4480 handlerAction.delay = delayMillis; 4481 4482 synchronized (mActions) { 4483 mActions.add(handlerAction); 4484 } 4485 } 4486 4487 void removeCallbacks(Runnable action) { 4488 final HandlerAction handlerAction = new HandlerAction(); 4489 handlerAction.action = action; 4490 4491 synchronized (mActions) { 4492 final ArrayList<HandlerAction> actions = mActions; 4493 4494 while (actions.remove(handlerAction)) { 4495 // Keep going 4496 } 4497 } 4498 } 4499 4500 void executeActions(Handler handler) { 4501 synchronized (mActions) { 4502 final ArrayList<HandlerAction> actions = mActions; 4503 final int count = actions.size(); 4504 4505 for (int i = 0; i < count; i++) { 4506 final HandlerAction handlerAction = actions.get(i); 4507 handler.postDelayed(handlerAction.action, handlerAction.delay); 4508 } 4509 4510 actions.clear(); 4511 } 4512 } 4513 4514 private static class HandlerAction { 4515 Runnable action; 4516 long delay; 4517 4518 @Override 4519 public boolean equals(Object o) { 4520 if (this == o) return true; 4521 if (o == null || getClass() != o.getClass()) return false; 4522 4523 HandlerAction that = (HandlerAction) o; 4524 return !(action != null ? !action.equals(that.action) : that.action != null); 4525 4526 } 4527 4528 @Override 4529 public int hashCode() { 4530 int result = action != null ? action.hashCode() : 0; 4531 result = 31 * result + (int) (delay ^ (delay >>> 32)); 4532 return result; 4533 } 4534 } 4535 } 4536 4537 /** 4538 * Class for managing the accessibility interaction connection 4539 * based on the global accessibility state. 4540 */ 4541 final class AccessibilityInteractionConnectionManager 4542 implements AccessibilityStateChangeListener { 4543 public void onAccessibilityStateChanged(boolean enabled) { 4544 if (enabled) { 4545 ensureConnection(); 4546 } else { 4547 ensureNoConnection(); 4548 } 4549 } 4550 4551 public void ensureConnection() { 4552 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4553 if (!registered) { 4554 mAttachInfo.mAccessibilityWindowId = 4555 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 4556 new AccessibilityInteractionConnection(ViewRootImpl.this)); 4557 } 4558 } 4559 4560 public void ensureNoConnection() { 4561 final boolean registered = mAttachInfo.mAccessibilityWindowId != View.NO_ID; 4562 if (registered) { 4563 mAttachInfo.mAccessibilityWindowId = View.NO_ID; 4564 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 4565 } 4566 } 4567 } 4568 4569 /** 4570 * This class is an interface this ViewAncestor provides to the 4571 * AccessibilityManagerService to the latter can interact with 4572 * the view hierarchy in this ViewAncestor. 4573 */ 4574 static final class AccessibilityInteractionConnection 4575 extends IAccessibilityInteractionConnection.Stub { 4576 private final WeakReference<ViewRootImpl> mViewRootImpl; 4577 4578 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 4579 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 4580 } 4581 4582 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 4583 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4584 int interrogatingPid, long interrogatingTid) { 4585 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4586 if (viewRootImpl != null && viewRootImpl.mView != null) { 4587 viewRootImpl.getAccessibilityInteractionController() 4588 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 4589 interactionId, callback, interrogatingPid, interrogatingTid); 4590 } 4591 } 4592 4593 public void performAccessibilityAction(long accessibilityNodeId, int action, 4594 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4595 int interogatingPid, long interrogatingTid) { 4596 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4597 if (viewRootImpl != null && viewRootImpl.mView != null) { 4598 viewRootImpl.getAccessibilityInteractionController() 4599 .performAccessibilityActionClientThread(accessibilityNodeId, action, 4600 interactionId, callback, interogatingPid, interrogatingTid); 4601 } 4602 } 4603 4604 public void findAccessibilityNodeInfoByViewId(int viewId, 4605 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4606 int interrogatingPid, long interrogatingTid) { 4607 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4608 if (viewRootImpl != null && viewRootImpl.mView != null) { 4609 viewRootImpl.getAccessibilityInteractionController() 4610 .findAccessibilityNodeInfoByViewIdClientThread(viewId, interactionId, callback, 4611 interrogatingPid, interrogatingTid); 4612 } 4613 } 4614 4615 public void findAccessibilityNodeInfosByText(String text, long accessibilityNodeId, 4616 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4617 int interrogatingPid, long interrogatingTid) { 4618 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 4619 if (viewRootImpl != null && viewRootImpl.mView != null) { 4620 viewRootImpl.getAccessibilityInteractionController() 4621 .findAccessibilityNodeInfosByTextClientThread(text, accessibilityNodeId, 4622 interactionId, callback, interrogatingPid, interrogatingTid); 4623 } 4624 } 4625 } 4626 4627 /** 4628 * Class for managing accessibility interactions initiated from the system 4629 * and targeting the view hierarchy. A *ClientThread method is to be 4630 * called from the interaction connection this ViewAncestor gives the 4631 * system to talk to it and a corresponding *UiThread method that is executed 4632 * on the UI thread. 4633 */ 4634 final class AccessibilityInteractionController { 4635 private static final int POOL_SIZE = 5; 4636 4637 private ArrayList<AccessibilityNodeInfo> mTempAccessibilityNodeInfoList = 4638 new ArrayList<AccessibilityNodeInfo>(); 4639 4640 // Reusable poolable arguments for interacting with the view hierarchy 4641 // to fit more arguments than Message and to avoid sharing objects between 4642 // two messages since several threads can send messages concurrently. 4643 private final Pool<SomeArgs> mPool = Pools.synchronizedPool(Pools.finitePool( 4644 new PoolableManager<SomeArgs>() { 4645 public SomeArgs newInstance() { 4646 return new SomeArgs(); 4647 } 4648 4649 public void onAcquired(SomeArgs info) { 4650 /* do nothing */ 4651 } 4652 4653 public void onReleased(SomeArgs info) { 4654 info.clear(); 4655 } 4656 }, POOL_SIZE) 4657 ); 4658 4659 public class SomeArgs implements Poolable<SomeArgs> { 4660 private SomeArgs mNext; 4661 private boolean mIsPooled; 4662 4663 public Object arg1; 4664 public Object arg2; 4665 public int argi1; 4666 public int argi2; 4667 public int argi3; 4668 4669 public SomeArgs getNextPoolable() { 4670 return mNext; 4671 } 4672 4673 public boolean isPooled() { 4674 return mIsPooled; 4675 } 4676 4677 public void setNextPoolable(SomeArgs args) { 4678 mNext = args; 4679 } 4680 4681 public void setPooled(boolean isPooled) { 4682 mIsPooled = isPooled; 4683 } 4684 4685 private void clear() { 4686 arg1 = null; 4687 arg2 = null; 4688 argi1 = 0; 4689 argi2 = 0; 4690 argi3 = 0; 4691 } 4692 } 4693 4694 public void findAccessibilityNodeInfoByAccessibilityIdClientThread( 4695 long accessibilityNodeId, int interactionId, 4696 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4697 long interrogatingTid) { 4698 Message message = Message.obtain(); 4699 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_ACCESSIBILITY_ID; 4700 SomeArgs args = mPool.acquire(); 4701 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4702 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4703 args.argi3 = interactionId; 4704 args.arg1 = callback; 4705 message.obj = args; 4706 // If the interrogation is performed by the same thread as the main UI 4707 // thread in this process, set the message as a static reference so 4708 // after this call completes the same thread but in the interrogating 4709 // client can handle the message to generate the result. 4710 if (interrogatingPid == Process.myPid() 4711 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4712 message.setTarget(ViewRootImpl.this); 4713 AccessibilityInteractionClient.getInstanceForThread( 4714 interrogatingTid).setSameThreadMessage(message); 4715 } else { 4716 sendMessage(message); 4717 } 4718 } 4719 4720 public void findAccessibilityNodeInfoByAccessibilityIdUiThread(Message message) { 4721 SomeArgs args = (SomeArgs) message.obj; 4722 final int accessibilityViewId = args.argi1; 4723 final int virtualDescendantId = args.argi2; 4724 final int interactionId = args.argi3; 4725 final IAccessibilityInteractionConnectionCallback callback = 4726 (IAccessibilityInteractionConnectionCallback) args.arg1; 4727 mPool.release(args); 4728 AccessibilityNodeInfo info = null; 4729 try { 4730 View target = findViewByAccessibilityId(accessibilityViewId); 4731 if (target != null && target.getVisibility() == View.VISIBLE) { 4732 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4733 if (provider != null) { 4734 info = provider.createAccessibilityNodeInfo(virtualDescendantId); 4735 } else if (virtualDescendantId == View.NO_ID) { 4736 info = target.createAccessibilityNodeInfo(); 4737 } 4738 } 4739 } finally { 4740 try { 4741 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4742 } catch (RemoteException re) { 4743 /* ignore - the other side will time out */ 4744 } 4745 } 4746 } 4747 4748 public void findAccessibilityNodeInfoByViewIdClientThread(int viewId, int interactionId, 4749 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4750 long interrogatingTid) { 4751 Message message = Message.obtain(); 4752 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_VIEW_ID; 4753 message.arg1 = viewId; 4754 message.arg2 = interactionId; 4755 message.obj = callback; 4756 // If the interrogation is performed by the same thread as the main UI 4757 // thread in this process, set the message as a static reference so 4758 // after this call completes the same thread but in the interrogating 4759 // client can handle the message to generate the result. 4760 if (interrogatingPid == Process.myPid() 4761 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4762 message.setTarget(ViewRootImpl.this); 4763 AccessibilityInteractionClient.getInstanceForThread( 4764 interrogatingTid).setSameThreadMessage(message); 4765 } else { 4766 sendMessage(message); 4767 } 4768 } 4769 4770 public void findAccessibilityNodeInfoByViewIdUiThread(Message message) { 4771 final int viewId = message.arg1; 4772 final int interactionId = message.arg2; 4773 final IAccessibilityInteractionConnectionCallback callback = 4774 (IAccessibilityInteractionConnectionCallback) message.obj; 4775 4776 AccessibilityNodeInfo info = null; 4777 try { 4778 View root = ViewRootImpl.this.mView; 4779 View target = root.findViewById(viewId); 4780 if (target != null && target.getVisibility() == View.VISIBLE) { 4781 info = target.createAccessibilityNodeInfo(); 4782 } 4783 } finally { 4784 try { 4785 callback.setFindAccessibilityNodeInfoResult(info, interactionId); 4786 } catch (RemoteException re) { 4787 /* ignore - the other side will time out */ 4788 } 4789 } 4790 } 4791 4792 public void findAccessibilityNodeInfosByTextClientThread(String text, 4793 long accessibilityNodeId, int interactionId, 4794 IAccessibilityInteractionConnectionCallback callback, int interrogatingPid, 4795 long interrogatingTid) { 4796 Message message = Message.obtain(); 4797 message.what = DO_FIND_ACCESSIBLITY_NODE_INFO_BY_TEXT; 4798 SomeArgs args = mPool.acquire(); 4799 args.arg1 = text; 4800 args.argi1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4801 args.argi2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4802 args.argi3 = interactionId; 4803 args.arg2 = callback; 4804 message.obj = args; 4805 // If the interrogation is performed by the same thread as the main UI 4806 // thread in this process, set the message as a static reference so 4807 // after this call completes the same thread but in the interrogating 4808 // client can handle the message to generate the result. 4809 if (interrogatingPid == Process.myPid() 4810 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4811 message.setTarget(ViewRootImpl.this); 4812 AccessibilityInteractionClient.getInstanceForThread( 4813 interrogatingTid).setSameThreadMessage(message); 4814 } else { 4815 sendMessage(message); 4816 } 4817 } 4818 4819 public void findAccessibilityNodeInfosByTextUiThread(Message message) { 4820 SomeArgs args = (SomeArgs) message.obj; 4821 final String text = (String) args.arg1; 4822 final int accessibilityViewId = args.argi1; 4823 final int virtualDescendantId = args.argi2; 4824 final int interactionId = args.argi3; 4825 final IAccessibilityInteractionConnectionCallback callback = 4826 (IAccessibilityInteractionConnectionCallback) args.arg2; 4827 mPool.release(args); 4828 List<AccessibilityNodeInfo> infos = null; 4829 try { 4830 View target = null; 4831 if (accessibilityViewId != View.NO_ID) { 4832 target = findViewByAccessibilityId(accessibilityViewId); 4833 } else { 4834 target = ViewRootImpl.this.mView; 4835 } 4836 if (target != null && target.getVisibility() == View.VISIBLE) { 4837 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4838 if (provider != null) { 4839 infos = provider.findAccessibilityNodeInfosByText(text, 4840 virtualDescendantId); 4841 } else if (virtualDescendantId == View.NO_ID) { 4842 ArrayList<View> foundViews = mAttachInfo.mFocusablesTempList; 4843 foundViews.clear(); 4844 target.findViewsWithText(foundViews, text, View.FIND_VIEWS_WITH_TEXT 4845 | View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION 4846 | View.FIND_VIEWS_WITH_ACCESSIBILITY_NODE_PROVIDERS); 4847 if (!foundViews.isEmpty()) { 4848 infos = mTempAccessibilityNodeInfoList; 4849 infos.clear(); 4850 final int viewCount = foundViews.size(); 4851 for (int i = 0; i < viewCount; i++) { 4852 View foundView = foundViews.get(i); 4853 if (foundView.getVisibility() == View.VISIBLE) { 4854 provider = foundView.getAccessibilityNodeProvider(); 4855 if (provider != null) { 4856 List<AccessibilityNodeInfo> infosFromProvider = 4857 provider.findAccessibilityNodeInfosByText(text, 4858 virtualDescendantId); 4859 if (infosFromProvider != null) { 4860 infos.addAll(infosFromProvider); 4861 } 4862 } else { 4863 infos.add(foundView.createAccessibilityNodeInfo()); 4864 } 4865 } 4866 } 4867 } 4868 } 4869 } 4870 } finally { 4871 try { 4872 callback.setFindAccessibilityNodeInfosResult(infos, interactionId); 4873 } catch (RemoteException re) { 4874 /* ignore - the other side will time out */ 4875 } 4876 } 4877 } 4878 4879 public void performAccessibilityActionClientThread(long accessibilityNodeId, int action, 4880 int interactionId, IAccessibilityInteractionConnectionCallback callback, 4881 int interogatingPid, long interrogatingTid) { 4882 Message message = Message.obtain(); 4883 message.what = DO_PERFORM_ACCESSIBILITY_ACTION; 4884 message.arg1 = AccessibilityNodeInfo.getAccessibilityViewId(accessibilityNodeId); 4885 message.arg2 = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityNodeId); 4886 SomeArgs args = mPool.acquire(); 4887 args.argi1 = action; 4888 args.argi2 = interactionId; 4889 args.arg1 = callback; 4890 message.obj = args; 4891 // If the interrogation is performed by the same thread as the main UI 4892 // thread in this process, set the message as a static reference so 4893 // after this call completes the same thread but in the interrogating 4894 // client can handle the message to generate the result. 4895 if (interogatingPid == Process.myPid() 4896 && interrogatingTid == Looper.getMainLooper().getThread().getId()) { 4897 message.setTarget(ViewRootImpl.this); 4898 AccessibilityInteractionClient.getInstanceForThread( 4899 interrogatingTid).setSameThreadMessage(message); 4900 } else { 4901 sendMessage(message); 4902 } 4903 } 4904 4905 public void perfromAccessibilityActionUiThread(Message message) { 4906 final int accessibilityViewId = message.arg1; 4907 final int virtualDescendantId = message.arg2; 4908 SomeArgs args = (SomeArgs) message.obj; 4909 final int action = args.argi1; 4910 final int interactionId = args.argi2; 4911 final IAccessibilityInteractionConnectionCallback callback = 4912 (IAccessibilityInteractionConnectionCallback) args.arg1; 4913 mPool.release(args); 4914 boolean succeeded = false; 4915 try { 4916 View target = findViewByAccessibilityId(accessibilityViewId); 4917 if (target != null && target.getVisibility() == View.VISIBLE) { 4918 AccessibilityNodeProvider provider = target.getAccessibilityNodeProvider(); 4919 if (provider != null) { 4920 succeeded = provider.performAccessibilityAction(action, 4921 virtualDescendantId); 4922 } else if (virtualDescendantId == View.NO_ID) { 4923 switch (action) { 4924 case AccessibilityNodeInfo.ACTION_FOCUS: { 4925 if (!target.hasFocus()) { 4926 // Get out of touch mode since accessibility 4927 // wants to move focus around. 4928 ensureTouchMode(false); 4929 succeeded = target.requestFocus(); 4930 } 4931 } break; 4932 case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { 4933 if (target.hasFocus()) { 4934 target.clearFocus(); 4935 succeeded = !target.isFocused(); 4936 } 4937 } break; 4938 case AccessibilityNodeInfo.ACTION_SELECT: { 4939 if (!target.isSelected()) { 4940 target.setSelected(true); 4941 succeeded = target.isSelected(); 4942 } 4943 } break; 4944 case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 4945 if (target.isSelected()) { 4946 target.setSelected(false); 4947 succeeded = !target.isSelected(); 4948 } 4949 } break; 4950 } 4951 } 4952 } 4953 } finally { 4954 try { 4955 callback.setPerformAccessibilityActionResult(succeeded, interactionId); 4956 } catch (RemoteException re) { 4957 /* ignore - the other side will time out */ 4958 } 4959 } 4960 } 4961 4962 private View findViewByAccessibilityId(int accessibilityId) { 4963 View root = ViewRootImpl.this.mView; 4964 if (root == null) { 4965 return null; 4966 } 4967 View foundView = root.findViewByAccessibilityId(accessibilityId); 4968 if (foundView != null && foundView.getVisibility() != View.VISIBLE) { 4969 return null; 4970 } 4971 return foundView; 4972 } 4973 } 4974 4975 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 4976 public volatile boolean mIsPending; 4977 4978 public void run() { 4979 if (mView != null) { 4980 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 4981 mIsPending = false; 4982 } 4983 } 4984 } 4985} 4986