ViewRootImpl.java revision 1f59e5c19bf72f88eed6f8de08b0a879d999f61c
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.animation.ValueAnimator; 22import android.app.ActivityManagerNative; 23import android.content.ClipDescription; 24import android.content.ComponentCallbacks; 25import android.content.ComponentCallbacks2; 26import android.content.Context; 27import android.content.pm.ApplicationInfo; 28import android.content.pm.PackageManager; 29import android.content.res.CompatibilityInfo; 30import android.content.res.Configuration; 31import android.content.res.Resources; 32import android.graphics.Canvas; 33import android.graphics.Paint; 34import android.graphics.PixelFormat; 35import android.graphics.Point; 36import android.graphics.PointF; 37import android.graphics.PorterDuff; 38import android.graphics.Rect; 39import android.graphics.Region; 40import android.graphics.drawable.Drawable; 41import android.media.AudioManager; 42import android.os.Binder; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Handler; 46import android.os.LatencyTimer; 47import android.os.Looper; 48import android.os.Message; 49import android.os.ParcelFileDescriptor; 50import android.os.PowerManager; 51import android.os.Process; 52import android.os.RemoteException; 53import android.os.SystemClock; 54import android.os.SystemProperties; 55import android.os.Trace; 56import android.util.AndroidRuntimeException; 57import android.util.DisplayMetrics; 58import android.util.EventLog; 59import android.util.Log; 60import android.util.Slog; 61import android.util.TypedValue; 62import android.view.View.AttachInfo; 63import android.view.View.MeasureSpec; 64import android.view.accessibility.AccessibilityEvent; 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.R; 78import com.android.internal.policy.PolicyManager; 79import com.android.internal.view.BaseSurfaceHolder; 80import com.android.internal.view.IInputMethodCallback; 81import com.android.internal.view.IInputMethodSession; 82import com.android.internal.view.RootViewSurfaceTaker; 83 84import java.io.IOException; 85import java.io.OutputStream; 86import java.lang.ref.WeakReference; 87import java.util.ArrayList; 88import java.util.HashSet; 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 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; 113 114 private static final boolean USE_RENDER_THREAD = false; 115 116 /** 117 * Set this system property to true to force the view hierarchy to render 118 * at 60 Hz. This can be used to measure the potential framerate. 119 */ 120 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 121 122 private static final boolean MEASURE_LATENCY = false; 123 private static LatencyTimer lt; 124 125 /** 126 * Maximum time we allow the user to roll the trackball enough to generate 127 * a key event, before resetting the counters. 128 */ 129 static final int MAX_TRACKBALL_DELAY = 250; 130 131 static IWindowSession sWindowSession; 132 133 static final Object mStaticInit = new Object(); 134 static boolean mInitialized = false; 135 136 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 137 138 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 139 static boolean sFirstDrawComplete = false; 140 141 static final ArrayList<ComponentCallbacks> sConfigCallbacks 142 = new ArrayList<ComponentCallbacks>(); 143 144 private static boolean sUseRenderThread = false; 145 private static boolean sRenderThreadQueried = false; 146 private static final Object[] sRenderThreadQueryLock = new Object[0]; 147 148 long mLastTrackballTime = 0; 149 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 150 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 151 152 int mLastJoystickXDirection; 153 int mLastJoystickYDirection; 154 int mLastJoystickXKeyCode; 155 int mLastJoystickYKeyCode; 156 157 final int[] mTmpLocation = new int[2]; 158 159 final TypedValue mTmpValue = new TypedValue(); 160 161 final InputMethodCallback mInputMethodCallback; 162 final Thread mThread; 163 164 final WindowLeaked mLocation; 165 166 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 167 168 final W mWindow; 169 170 final int mTargetSdkVersion; 171 172 int mSeq; 173 174 View mView; 175 View mFocusedView; 176 View mRealFocusedView; // this is not set to null in touch mode 177 View mOldFocusedView; 178 179 View mAccessibilityFocusedHost; 180 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 181 182 int mViewVisibility; 183 boolean mAppVisible = true; 184 int mOrigWindowType = -1; 185 186 // Set to true if the owner of this window is in the stopped state, 187 // so the window should no longer be active. 188 boolean mStopped = false; 189 190 boolean mLastInCompatMode = false; 191 192 SurfaceHolder.Callback2 mSurfaceHolderCallback; 193 BaseSurfaceHolder mSurfaceHolder; 194 boolean mIsCreating; 195 boolean mDrawingAllowed; 196 197 final Region mTransparentRegion; 198 final Region mPreviousTransparentRegion; 199 200 int mWidth; 201 int mHeight; 202 Rect mDirty; 203 final Rect mCurrentDirty = new Rect(); 204 final Rect mPreviousDirty = new Rect(); 205 boolean mIsAnimating; 206 207 CompatibilityInfo.Translator mTranslator; 208 209 final View.AttachInfo mAttachInfo; 210 InputChannel mInputChannel; 211 InputQueue.Callback mInputQueueCallback; 212 InputQueue mInputQueue; 213 FallbackEventHandler mFallbackEventHandler; 214 Choreographer mChoreographer; 215 216 final Rect mTempRect; // used in the transaction to not thrash the heap. 217 final Rect mVisRect; // used to retrieve visible rect of focused view. 218 219 boolean mTraversalScheduled; 220 int mTraversalBarrier; 221 long mLastTraversalFinishedTimeNanos; 222 long mLastDrawFinishedTimeNanos; 223 boolean mWillDrawSoon; 224 boolean mFitSystemWindowsRequested; 225 boolean mLayoutRequested; 226 boolean mFirst; 227 boolean mReportNextDraw; 228 boolean mFullRedrawNeeded; 229 boolean mNewSurfaceNeeded; 230 boolean mHasHadWindowFocus; 231 boolean mLastWasImTarget; 232 boolean mWindowsAnimating; 233 boolean mIsDrawing; 234 int mLastSystemUiVisibility; 235 236 // Pool of queued input events. 237 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 238 private QueuedInputEvent mQueuedInputEventPool; 239 private int mQueuedInputEventPoolSize; 240 241 // Input event queue. 242 QueuedInputEvent mFirstPendingInputEvent; 243 QueuedInputEvent mCurrentInputEvent; 244 boolean mProcessInputEventsScheduled; 245 246 boolean mWindowAttributesChanged = false; 247 int mWindowAttributesChangesFlag = 0; 248 249 // These can be accessed by any thread, must be protected with a lock. 250 // Surface can never be reassigned or cleared (use Surface.clear()). 251 private final Surface mSurface = new Surface(); 252 253 boolean mAdded; 254 boolean mAddedTouchMode; 255 256 CompatibilityInfoHolder mCompatibilityInfo; 257 258 /*package*/ int mAddNesting; 259 260 // These are accessed by multiple threads. 261 final Rect mWinFrame; // frame given by window manager. 262 263 final Rect mPendingVisibleInsets = new Rect(); 264 final Rect mPendingContentInsets = new Rect(); 265 final Rect mPendingSystemInsets = new Rect(); 266 final Rect mActiveRect = new Rect(); 267 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 268 = new ViewTreeObserver.InternalInsetsInfo(); 269 270 final Rect mFitSystemWindowsInsets = new Rect(); 271 272 final Configuration mLastConfiguration = new Configuration(); 273 final Configuration mPendingConfiguration = new Configuration(); 274 275 class ResizedInfo { 276 Rect systemInsets; 277 Rect contentInsets; 278 Rect visibleInsets; 279 Configuration newConfig; 280 } 281 282 boolean mScrollMayChange; 283 int mSoftInputMode; 284 View mLastScrolledFocus; 285 int mScrollY; 286 int mCurScrollY; 287 Scroller mScroller; 288 HardwareLayer mResizeBuffer; 289 long mResizeBufferStartTime; 290 int mResizeBufferDuration; 291 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 292 private ArrayList<LayoutTransition> mPendingTransitions; 293 294 final ViewConfiguration mViewConfiguration; 295 296 /* Drag/drop */ 297 ClipDescription mDragDescription; 298 View mCurrentDragView; 299 volatile Object mLocalDragState; 300 final PointF mDragPoint = new PointF(); 301 final PointF mLastTouchPoint = new PointF(); 302 303 private boolean mProfileRendering; 304 private Thread mRenderProfiler; 305 private volatile boolean mRenderProfilingEnabled; 306 307 // Variables to track frames per second, enabled via DEBUG_FPS flag 308 private long mFpsStartTime = -1; 309 private long mFpsPrevTime = -1; 310 private int mFpsNumFrames; 311 312 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(24); 313 314 /** 315 * see {@link #playSoundEffect(int)} 316 */ 317 AudioManager mAudioManager; 318 319 final AccessibilityManager mAccessibilityManager; 320 321 AccessibilityInteractionController mAccessibilityInteractionController; 322 323 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 324 325 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 326 327 HashSet<View> mTempHashSet; 328 329 private final int mDensity; 330 331 final KeyCharacterMap.FallbackAction mFallbackAction = new KeyCharacterMap.FallbackAction(); 332 333 /** 334 * Consistency verifier for debugging purposes. 335 */ 336 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 337 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 338 new InputEventConsistencyVerifier(this, 0) : null; 339 340 public static IWindowSession getWindowSession(Looper mainLooper) { 341 synchronized (mStaticInit) { 342 if (!mInitialized) { 343 try { 344 InputMethodManager imm = InputMethodManager.getInstance(mainLooper); 345 IWindowManager windowManager = Display.getWindowManager(); 346 sWindowSession = windowManager.openSession( 347 imm.getClient(), imm.getInputContext()); 348 float animatorScale = windowManager.getAnimationScale(2); 349 ValueAnimator.setDurationScale(animatorScale); 350 mInitialized = true; 351 } catch (RemoteException e) { 352 } 353 } 354 return sWindowSession; 355 } 356 } 357 358 static final class SystemUiVisibilityInfo { 359 int seq; 360 int globalVisibility; 361 int localValue; 362 int localChanges; 363 } 364 365 public ViewRootImpl(Context context) { 366 super(); 367 368 if (MEASURE_LATENCY) { 369 if (lt == null) { 370 lt = new LatencyTimer(100, 1000); 371 } 372 } 373 374 // Initialize the statics when this class is first instantiated. This is 375 // done here instead of in the static block because Zygote does not 376 // allow the spawning of threads. 377 getWindowSession(context.getMainLooper()); 378 379 mThread = Thread.currentThread(); 380 mLocation = new WindowLeaked(null); 381 mLocation.fillInStackTrace(); 382 mWidth = -1; 383 mHeight = -1; 384 mDirty = new Rect(); 385 mTempRect = new Rect(); 386 mVisRect = new Rect(); 387 mWinFrame = new Rect(); 388 mWindow = new W(this); 389 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 390 mInputMethodCallback = new InputMethodCallback(this); 391 mViewVisibility = View.GONE; 392 mTransparentRegion = new Region(); 393 mPreviousTransparentRegion = new Region(); 394 mFirst = true; // true for the first time the view is added 395 mAdded = false; 396 mAccessibilityManager = AccessibilityManager.getInstance(context); 397 mAccessibilityInteractionConnectionManager = 398 new AccessibilityInteractionConnectionManager(); 399 mAccessibilityManager.addAccessibilityStateChangeListener( 400 mAccessibilityInteractionConnectionManager); 401 mAttachInfo = new View.AttachInfo(sWindowSession, mWindow, this, mHandler, this); 402 mViewConfiguration = ViewConfiguration.get(context); 403 mDensity = context.getResources().getDisplayMetrics().densityDpi; 404 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 405 mProfileRendering = Boolean.parseBoolean( 406 SystemProperties.get(PROPERTY_PROFILE_RENDERING, "false")); 407 mChoreographer = Choreographer.getInstance(); 408 409 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 410 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 411 } 412 413 /** 414 * @return True if the application requests the use of a separate render thread, 415 * false otherwise 416 */ 417 private static boolean isRenderThreadRequested(Context context) { 418 if (USE_RENDER_THREAD) { 419 synchronized (sRenderThreadQueryLock) { 420 if (!sRenderThreadQueried) { 421 final PackageManager packageManager = context.getPackageManager(); 422 final String packageName = context.getApplicationInfo().packageName; 423 try { 424 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 425 PackageManager.GET_META_DATA); 426 if (applicationInfo.metaData != null) { 427 sUseRenderThread = applicationInfo.metaData.getBoolean( 428 "android.graphics.renderThread", false); 429 } 430 } catch (PackageManager.NameNotFoundException e) { 431 } finally { 432 sRenderThreadQueried = true; 433 } 434 } 435 return sUseRenderThread; 436 } 437 } else { 438 return false; 439 } 440 } 441 442 public static void addFirstDrawHandler(Runnable callback) { 443 synchronized (sFirstDrawHandlers) { 444 if (!sFirstDrawComplete) { 445 sFirstDrawHandlers.add(callback); 446 } 447 } 448 } 449 450 public static void addConfigCallback(ComponentCallbacks callback) { 451 synchronized (sConfigCallbacks) { 452 sConfigCallbacks.add(callback); 453 } 454 } 455 456 // FIXME for perf testing only 457 private boolean mProfile = false; 458 459 /** 460 * Call this to profile the next traversal call. 461 * FIXME for perf testing only. Remove eventually 462 */ 463 public void profile() { 464 mProfile = true; 465 } 466 467 /** 468 * Indicates whether we are in touch mode. Calling this method triggers an IPC 469 * call and should be avoided whenever possible. 470 * 471 * @return True, if the device is in touch mode, false otherwise. 472 * 473 * @hide 474 */ 475 static boolean isInTouchMode() { 476 if (mInitialized) { 477 try { 478 return sWindowSession.getInTouchMode(); 479 } catch (RemoteException e) { 480 } 481 } 482 return false; 483 } 484 485 /** 486 * We have one child 487 */ 488 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 489 synchronized (this) { 490 if (mView == null) { 491 mView = view; 492 mFallbackEventHandler.setView(view); 493 mWindowAttributes.copyFrom(attrs); 494 attrs = mWindowAttributes; 495 496 if (view instanceof RootViewSurfaceTaker) { 497 mSurfaceHolderCallback = 498 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 499 if (mSurfaceHolderCallback != null) { 500 mSurfaceHolder = new TakenSurfaceHolder(); 501 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 502 } 503 } 504 505 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 506 mTranslator = compatibilityInfo.getTranslator(); 507 508 // If the application owns the surface, don't enable hardware acceleration 509 if (mSurfaceHolder == null) { 510 enableHardwareAcceleration(mView.getContext(), attrs); 511 } 512 513 boolean restore = false; 514 if (mTranslator != null) { 515 mSurface.setCompatibilityTranslator(mTranslator); 516 restore = true; 517 attrs.backup(); 518 mTranslator.translateWindowLayout(attrs); 519 } 520 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 521 522 if (!compatibilityInfo.supportsScreen()) { 523 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 524 mLastInCompatMode = true; 525 } 526 527 mSoftInputMode = attrs.softInputMode; 528 mWindowAttributesChanged = true; 529 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 530 mAttachInfo.mRootView = view; 531 mAttachInfo.mScalingRequired = mTranslator != null; 532 mAttachInfo.mApplicationScale = 533 mTranslator == null ? 1.0f : mTranslator.applicationScale; 534 if (panelParentView != null) { 535 mAttachInfo.mPanelParentWindowToken 536 = panelParentView.getApplicationWindowToken(); 537 } 538 mAdded = true; 539 int res; /* = WindowManagerImpl.ADD_OKAY; */ 540 541 // Schedule the first layout -before- adding to the window 542 // manager, to make sure we do the relayout before receiving 543 // any other events from the system. 544 requestLayout(); 545 if ((mWindowAttributes.inputFeatures 546 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 547 mInputChannel = new InputChannel(); 548 } 549 try { 550 mOrigWindowType = mWindowAttributes.type; 551 mAttachInfo.mRecomputeGlobalAttributes = true; 552 collectViewAttributes(); 553 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 554 getHostVisibility(), mAttachInfo.mContentInsets, 555 mInputChannel); 556 } catch (RemoteException e) { 557 mAdded = false; 558 mView = null; 559 mAttachInfo.mRootView = null; 560 mInputChannel = null; 561 mFallbackEventHandler.setView(null); 562 unscheduleTraversals(); 563 throw new RuntimeException("Adding window failed", e); 564 } finally { 565 if (restore) { 566 attrs.restore(); 567 } 568 } 569 570 if (mTranslator != null) { 571 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 572 } 573 mPendingSystemInsets.set(0, 0, 0, 0); 574 mPendingContentInsets.set(mAttachInfo.mContentInsets); 575 mPendingVisibleInsets.set(0, 0, 0, 0); 576 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 577 if (res < WindowManagerImpl.ADD_OKAY) { 578 mView = null; 579 mAttachInfo.mRootView = null; 580 mAdded = false; 581 mFallbackEventHandler.setView(null); 582 unscheduleTraversals(); 583 switch (res) { 584 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 585 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 586 throw new WindowManagerImpl.BadTokenException( 587 "Unable to add window -- token " + attrs.token 588 + " is not valid; is your activity running?"); 589 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 590 throw new WindowManagerImpl.BadTokenException( 591 "Unable to add window -- token " + attrs.token 592 + " is not for an application"); 593 case WindowManagerImpl.ADD_APP_EXITING: 594 throw new WindowManagerImpl.BadTokenException( 595 "Unable to add window -- app for token " + attrs.token 596 + " is exiting"); 597 case WindowManagerImpl.ADD_DUPLICATE_ADD: 598 throw new WindowManagerImpl.BadTokenException( 599 "Unable to add window -- window " + mWindow 600 + " has already been added"); 601 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 602 // Silently ignore -- we would have just removed it 603 // right away, anyway. 604 return; 605 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 606 throw new WindowManagerImpl.BadTokenException( 607 "Unable to add window " + mWindow + 608 " -- another window of this type already exists"); 609 case WindowManagerImpl.ADD_PERMISSION_DENIED: 610 throw new WindowManagerImpl.BadTokenException( 611 "Unable to add window " + mWindow + 612 " -- permission denied for this window type"); 613 } 614 throw new RuntimeException( 615 "Unable to add window -- unknown error code " + res); 616 } 617 618 if (view instanceof RootViewSurfaceTaker) { 619 mInputQueueCallback = 620 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 621 } 622 if (mInputChannel != null) { 623 if (mInputQueueCallback != null) { 624 mInputQueue = new InputQueue(mInputChannel); 625 mInputQueueCallback.onInputQueueCreated(mInputQueue); 626 } else { 627 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 628 Looper.myLooper()); 629 } 630 } 631 632 view.assignParent(this); 633 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 634 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 635 636 if (mAccessibilityManager.isEnabled()) { 637 mAccessibilityInteractionConnectionManager.ensureConnection(); 638 } 639 640 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 641 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 642 } 643 644 setAccessibilityFocusedHost(null); 645 } 646 } 647 } 648 649 void destroyHardwareResources() { 650 if (mAttachInfo.mHardwareRenderer != null) { 651 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 652 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 653 } 654 mAttachInfo.mHardwareRenderer.destroy(false); 655 } 656 } 657 658 void terminateHardwareResources() { 659 if (mAttachInfo.mHardwareRenderer != null) { 660 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 661 mAttachInfo.mHardwareRenderer.destroy(false); 662 } 663 } 664 665 void destroyHardwareLayers() { 666 if (mThread != Thread.currentThread()) { 667 if (mAttachInfo.mHardwareRenderer != null && 668 mAttachInfo.mHardwareRenderer.isEnabled()) { 669 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 670 } 671 } else { 672 if (mAttachInfo.mHardwareRenderer != null && 673 mAttachInfo.mHardwareRenderer.isEnabled()) { 674 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 675 } 676 } 677 } 678 679 public void attachFunctor(int functor) { 680 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 681 mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 682 } 683 } 684 685 public void detachFunctor(int functor) { 686 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 687 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 688 } 689 } 690 691 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 692 mAttachInfo.mHardwareAccelerated = false; 693 mAttachInfo.mHardwareAccelerationRequested = false; 694 695 // Don't enable hardware acceleration when the application is in compatibility mode 696 if (mTranslator != null) return; 697 698 // Try to enable hardware acceleration if requested 699 final boolean hardwareAccelerated = 700 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 701 702 if (hardwareAccelerated) { 703 if (!HardwareRenderer.isAvailable()) { 704 return; 705 } 706 707 // Persistent processes (including the system) should not do 708 // accelerated rendering on low-end devices. In that case, 709 // sRendererDisabled will be set. In addition, the system process 710 // itself should never do accelerated rendering. In that case, both 711 // sRendererDisabled and sSystemRendererDisabled are set. When 712 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 713 // can be used by code on the system process to escape that and enable 714 // HW accelerated drawing. (This is basically for the lock screen.) 715 716 final boolean fakeHwAccelerated = (attrs.privateFlags & 717 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 718 final boolean forceHwAccelerated = (attrs.privateFlags & 719 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 720 721 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 722 && forceHwAccelerated)) { 723 // Don't enable hardware acceleration when we're not on the main thread 724 if (!HardwareRenderer.sSystemRendererDisabled && 725 Looper.getMainLooper() != Looper.myLooper()) { 726 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 727 + "acceleration outside of the main thread, aborting"); 728 return; 729 } 730 731 final boolean renderThread = isRenderThreadRequested(context); 732 if (renderThread) { 733 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 734 } 735 736 if (mAttachInfo.mHardwareRenderer != null) { 737 mAttachInfo.mHardwareRenderer.destroy(true); 738 } 739 740 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 741 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 742 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 743 = mAttachInfo.mHardwareRenderer != null; 744 745 } else if (fakeHwAccelerated) { 746 // The window had wanted to use hardware acceleration, but this 747 // is not allowed in its process. By setting this flag, it can 748 // still render as if it was accelerated. This is basically for 749 // the preview windows the window manager shows for launching 750 // applications, so they will look more like the app being launched. 751 mAttachInfo.mHardwareAccelerationRequested = true; 752 } 753 } 754 } 755 756 public View getView() { 757 return mView; 758 } 759 760 final WindowLeaked getLocation() { 761 return mLocation; 762 } 763 764 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 765 synchronized (this) { 766 int oldSoftInputMode = mWindowAttributes.softInputMode; 767 // preserve compatible window flag if exists. 768 int compatibleWindowFlag = 769 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 770 // transfer over system UI visibility values as they carry current state. 771 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 772 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 773 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 774 mWindowAttributes.flags |= compatibleWindowFlag; 775 776 if (newView) { 777 mSoftInputMode = attrs.softInputMode; 778 requestLayout(); 779 } 780 // Don't lose the mode we last auto-computed. 781 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 782 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 783 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 784 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 785 | (oldSoftInputMode 786 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 787 } 788 mWindowAttributesChanged = true; 789 scheduleTraversals(); 790 } 791 } 792 793 void handleAppVisibility(boolean visible) { 794 if (mAppVisible != visible) { 795 mAppVisible = visible; 796 scheduleTraversals(); 797 } 798 } 799 800 void handleGetNewSurface() { 801 mNewSurfaceNeeded = true; 802 mFullRedrawNeeded = true; 803 scheduleTraversals(); 804 } 805 806 void handleScreenStateChange(boolean on) { 807 if (on != mAttachInfo.mScreenOn) { 808 mAttachInfo.mScreenOn = on; 809 if (mView != null) { 810 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 811 } 812 if (on) { 813 mFullRedrawNeeded = true; 814 scheduleTraversals(); 815 } 816 } 817 } 818 819 /** 820 * {@inheritDoc} 821 */ 822 public void requestFitSystemWindows() { 823 checkThread(); 824 mFitSystemWindowsRequested = true; 825 scheduleTraversals(); 826 } 827 828 /** 829 * {@inheritDoc} 830 */ 831 public void requestLayout() { 832 checkThread(); 833 mLayoutRequested = true; 834 scheduleTraversals(); 835 } 836 837 /** 838 * {@inheritDoc} 839 */ 840 public boolean isLayoutRequested() { 841 return mLayoutRequested; 842 } 843 844 void invalidate() { 845 mDirty.set(0, 0, mWidth, mHeight); 846 scheduleTraversals(); 847 } 848 849 public void invalidateChild(View child, Rect dirty) { 850 invalidateChildInParent(null, dirty); 851 } 852 853 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 854 checkThread(); 855 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 856 857 if (dirty == null) { 858 invalidate(); 859 return null; 860 } 861 862 if (mCurScrollY != 0 || mTranslator != null) { 863 mTempRect.set(dirty); 864 dirty = mTempRect; 865 if (mCurScrollY != 0) { 866 dirty.offset(0, -mCurScrollY); 867 } 868 if (mTranslator != null) { 869 mTranslator.translateRectInAppWindowToScreen(dirty); 870 } 871 if (mAttachInfo.mScalingRequired) { 872 dirty.inset(-1, -1); 873 } 874 } 875 876 final Rect localDirty = mDirty; 877 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 878 mAttachInfo.mSetIgnoreDirtyState = true; 879 mAttachInfo.mIgnoreDirtyState = true; 880 } 881 882 // Add the new dirty rect to the current one 883 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 884 // Intersect with the bounds of the window to skip 885 // updates that lie outside of the visible region 886 final float appScale = mAttachInfo.mApplicationScale; 887 localDirty.intersect(0, 0, 888 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 889 890 if (!mWillDrawSoon) { 891 scheduleTraversals(); 892 } 893 894 return null; 895 } 896 897 void setStopped(boolean stopped) { 898 if (mStopped != stopped) { 899 mStopped = stopped; 900 if (!stopped) { 901 scheduleTraversals(); 902 } 903 } 904 } 905 906 public ViewParent getParent() { 907 return null; 908 } 909 910 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 911 if (child != mView) { 912 throw new RuntimeException("child is not mine, honest!"); 913 } 914 // Note: don't apply scroll offset, because we want to know its 915 // visibility in the virtual canvas being given to the view hierarchy. 916 return r.intersect(0, 0, mWidth, mHeight); 917 } 918 919 public void bringChildToFront(View child) { 920 } 921 922 int getHostVisibility() { 923 return mAppVisible ? mView.getVisibility() : View.GONE; 924 } 925 926 void disposeResizeBuffer() { 927 if (mResizeBuffer != null) { 928 mResizeBuffer.destroy(); 929 mResizeBuffer = null; 930 } 931 } 932 933 /** 934 * Add LayoutTransition to the list of transitions to be started in the next traversal. 935 * This list will be cleared after the transitions on the list are start()'ed. These 936 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 937 * happens during the layout phase of traversal, which we want to complete before any of the 938 * animations are started (because those animations may side-effect properties that layout 939 * depends upon, like the bounding rectangles of the affected views). So we add the transition 940 * to the list and it is started just prior to starting the drawing phase of traversal. 941 * 942 * @param transition The LayoutTransition to be started on the next traversal. 943 * 944 * @hide 945 */ 946 public void requestTransitionStart(LayoutTransition transition) { 947 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 948 if (mPendingTransitions == null) { 949 mPendingTransitions = new ArrayList<LayoutTransition>(); 950 } 951 mPendingTransitions.add(transition); 952 } 953 } 954 955 void scheduleTraversals() { 956 if (!mTraversalScheduled) { 957 mTraversalScheduled = true; 958 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 959 mChoreographer.postCallback( 960 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 961 scheduleConsumeBatchedInput(); 962 } 963 } 964 965 void unscheduleTraversals() { 966 if (mTraversalScheduled) { 967 mTraversalScheduled = false; 968 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 969 mChoreographer.removeCallbacks( 970 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 971 } 972 } 973 974 void doTraversal() { 975 if (mTraversalScheduled) { 976 mTraversalScheduled = false; 977 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 978 979 if (mProfile) { 980 Debug.startMethodTracing("ViewAncestor"); 981 } 982 983 final long traversalStartTime; 984 if (ViewDebug.DEBUG_LATENCY) { 985 traversalStartTime = System.nanoTime(); 986 if (mLastTraversalFinishedTimeNanos != 0) { 987 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 988 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 989 + "ms since the last traversals finished."); 990 } else { 991 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 992 } 993 } 994 995 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 996 try { 997 performTraversals(); 998 } finally { 999 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1000 } 1001 1002 if (ViewDebug.DEBUG_LATENCY) { 1003 long now = System.nanoTime(); 1004 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 1005 + ((now - traversalStartTime) * 0.000001f) 1006 + "ms."); 1007 mLastTraversalFinishedTimeNanos = now; 1008 } 1009 1010 if (mProfile) { 1011 Debug.stopMethodTracing(); 1012 mProfile = false; 1013 } 1014 } 1015 } 1016 1017 private boolean collectViewAttributes() { 1018 final View.AttachInfo attachInfo = mAttachInfo; 1019 if (attachInfo.mRecomputeGlobalAttributes) { 1020 //Log.i(TAG, "Computing view hierarchy attributes!"); 1021 attachInfo.mRecomputeGlobalAttributes = false; 1022 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1023 int oldVis = attachInfo.mSystemUiVisibility; 1024 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1025 attachInfo.mKeepScreenOn = false; 1026 attachInfo.mSystemUiVisibility = 0; 1027 attachInfo.mHasSystemUiListeners = false; 1028 mView.dispatchCollectViewAttributes(attachInfo, 0); 1029 if (attachInfo.mKeepScreenOn != oldScreenOn 1030 || attachInfo.mSystemUiVisibility != oldVis 1031 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1032 WindowManager.LayoutParams params = mWindowAttributes; 1033 if (attachInfo.mKeepScreenOn) { 1034 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1035 } 1036 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1037 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1038 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1039 return true; 1040 } 1041 } 1042 return false; 1043 } 1044 1045 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1046 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1047 int childWidthMeasureSpec; 1048 int childHeightMeasureSpec; 1049 boolean windowSizeMayChange = false; 1050 1051 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1052 "Measuring " + host + " in display " + desiredWindowWidth 1053 + "x" + desiredWindowHeight + "..."); 1054 1055 boolean goodMeasure = false; 1056 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1057 // On large screens, we don't want to allow dialogs to just 1058 // stretch to fill the entire width of the screen to display 1059 // one line of text. First try doing the layout at a smaller 1060 // size to see if it will fit. 1061 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1062 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1063 int baseSize = 0; 1064 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1065 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1066 } 1067 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1068 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1069 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1070 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1071 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1072 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1073 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1074 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1075 goodMeasure = true; 1076 } else { 1077 // Didn't fit in that size... try expanding a bit. 1078 baseSize = (baseSize+desiredWindowWidth)/2; 1079 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1080 + baseSize); 1081 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1082 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1083 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1084 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1085 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1086 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1087 goodMeasure = true; 1088 } 1089 } 1090 } 1091 } 1092 1093 if (!goodMeasure) { 1094 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1095 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1096 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1097 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1098 windowSizeMayChange = true; 1099 } 1100 } 1101 1102 if (DBG) { 1103 System.out.println("======================================"); 1104 System.out.println("performTraversals -- after measure"); 1105 host.debug(); 1106 } 1107 1108 return windowSizeMayChange; 1109 } 1110 1111 private void performTraversals() { 1112 // cache mView since it is used so much below... 1113 final View host = mView; 1114 1115 if (DBG) { 1116 System.out.println("======================================"); 1117 System.out.println("performTraversals"); 1118 host.debug(); 1119 } 1120 1121 if (host == null || !mAdded) 1122 return; 1123 1124 mWillDrawSoon = true; 1125 boolean windowSizeMayChange = false; 1126 boolean newSurface = false; 1127 boolean surfaceChanged = false; 1128 WindowManager.LayoutParams lp = mWindowAttributes; 1129 1130 int desiredWindowWidth; 1131 int desiredWindowHeight; 1132 1133 final View.AttachInfo attachInfo = mAttachInfo; 1134 1135 final int viewVisibility = getHostVisibility(); 1136 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1137 || mNewSurfaceNeeded; 1138 1139 WindowManager.LayoutParams params = null; 1140 if (mWindowAttributesChanged) { 1141 mWindowAttributesChanged = false; 1142 surfaceChanged = true; 1143 params = lp; 1144 } 1145 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1146 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1147 params = lp; 1148 mFullRedrawNeeded = true; 1149 mLayoutRequested = true; 1150 if (mLastInCompatMode) { 1151 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1152 mLastInCompatMode = false; 1153 } else { 1154 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1155 mLastInCompatMode = true; 1156 } 1157 } 1158 1159 mWindowAttributesChangesFlag = 0; 1160 1161 Rect frame = mWinFrame; 1162 if (mFirst) { 1163 mFullRedrawNeeded = true; 1164 mLayoutRequested = true; 1165 1166 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1167 // NOTE -- system code, won't try to do compat mode. 1168 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1169 Point size = new Point(); 1170 disp.getRealSize(size); 1171 desiredWindowWidth = size.x; 1172 desiredWindowHeight = size.y; 1173 } else { 1174 DisplayMetrics packageMetrics = 1175 mView.getContext().getResources().getDisplayMetrics(); 1176 desiredWindowWidth = packageMetrics.widthPixels; 1177 desiredWindowHeight = packageMetrics.heightPixels; 1178 } 1179 1180 // For the very first time, tell the view hierarchy that it 1181 // is attached to the window. Note that at this point the surface 1182 // object is not initialized to its backing store, but soon it 1183 // will be (assuming the window is visible). 1184 attachInfo.mSurface = mSurface; 1185 // We used to use the following condition to choose 32 bits drawing caches: 1186 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1187 // However, windows are now always 32 bits by default, so choose 32 bits 1188 attachInfo.mUse32BitDrawingCache = true; 1189 attachInfo.mHasWindowFocus = false; 1190 attachInfo.mWindowVisibility = viewVisibility; 1191 attachInfo.mRecomputeGlobalAttributes = false; 1192 viewVisibilityChanged = false; 1193 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1194 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1195 host.dispatchAttachedToWindow(attachInfo, 0); 1196 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1197 host.fitSystemWindows(mFitSystemWindowsInsets); 1198 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1199 1200 } else { 1201 desiredWindowWidth = frame.width(); 1202 desiredWindowHeight = frame.height(); 1203 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1204 if (DEBUG_ORIENTATION) Log.v(TAG, 1205 "View " + host + " resized to: " + frame); 1206 mFullRedrawNeeded = true; 1207 mLayoutRequested = true; 1208 windowSizeMayChange = true; 1209 } 1210 } 1211 1212 if (viewVisibilityChanged) { 1213 attachInfo.mWindowVisibility = viewVisibility; 1214 host.dispatchWindowVisibilityChanged(viewVisibility); 1215 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1216 destroyHardwareResources(); 1217 } 1218 if (viewVisibility == View.GONE) { 1219 // After making a window gone, we will count it as being 1220 // shown for the first time the next time it gets focus. 1221 mHasHadWindowFocus = false; 1222 } 1223 } 1224 1225 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1226 getRunQueue().executeActions(attachInfo.mHandler); 1227 1228 boolean insetsChanged = false; 1229 boolean activeRectChanged = false; 1230 1231 boolean layoutRequested = mLayoutRequested && !mStopped; 1232 if (layoutRequested) { 1233 1234 final Resources res = mView.getContext().getResources(); 1235 1236 if (mFirst) { 1237 // make sure touch mode code executes by setting cached value 1238 // to opposite of the added touch mode. 1239 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1240 ensureTouchModeLocally(mAddedTouchMode); 1241 activeRectChanged = true; 1242 } else { 1243 if (!mPendingSystemInsets.equals(mAttachInfo.mSystemInsets)) { 1244 mAttachInfo.mSystemInsets.set(mPendingSystemInsets); 1245 activeRectChanged = true; 1246 } 1247 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1248 insetsChanged = true; 1249 } 1250 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1251 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1252 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1253 + mAttachInfo.mVisibleInsets); 1254 } 1255 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1256 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1257 windowSizeMayChange = true; 1258 1259 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1260 // NOTE -- system code, won't try to do compat mode. 1261 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1262 Point size = new Point(); 1263 disp.getRealSize(size); 1264 desiredWindowWidth = size.x; 1265 desiredWindowHeight = size.y; 1266 } else { 1267 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1268 desiredWindowWidth = packageMetrics.widthPixels; 1269 desiredWindowHeight = packageMetrics.heightPixels; 1270 } 1271 } 1272 } 1273 1274 // Ask host how big it wants to be 1275 windowSizeMayChange |= measureHierarchy(host, lp, res, 1276 desiredWindowWidth, desiredWindowHeight); 1277 } 1278 1279 if (collectViewAttributes()) { 1280 params = lp; 1281 } 1282 if (attachInfo.mForceReportNewAttributes) { 1283 attachInfo.mForceReportNewAttributes = false; 1284 params = lp; 1285 } 1286 1287 if (mFirst || attachInfo.mViewVisibilityChanged) { 1288 attachInfo.mViewVisibilityChanged = false; 1289 int resizeMode = mSoftInputMode & 1290 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1291 // If we are in auto resize mode, then we need to determine 1292 // what mode to use now. 1293 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1294 final int N = attachInfo.mScrollContainers.size(); 1295 for (int i=0; i<N; i++) { 1296 if (attachInfo.mScrollContainers.get(i).isShown()) { 1297 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1298 } 1299 } 1300 if (resizeMode == 0) { 1301 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1302 } 1303 if ((lp.softInputMode & 1304 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1305 lp.softInputMode = (lp.softInputMode & 1306 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1307 resizeMode; 1308 params = lp; 1309 } 1310 } 1311 } 1312 1313 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1314 if (!PixelFormat.formatHasAlpha(params.format)) { 1315 params.format = PixelFormat.TRANSLUCENT; 1316 } 1317 } 1318 1319 if (mFitSystemWindowsRequested) { 1320 mFitSystemWindowsRequested = false; 1321 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1322 host.fitSystemWindows(mFitSystemWindowsInsets); 1323 if (mLayoutRequested) { 1324 // Short-circuit catching a new layout request here, so 1325 // we don't need to go through two layout passes when things 1326 // change due to fitting system windows, which can happen a lot. 1327 windowSizeMayChange |= measureHierarchy(host, lp, 1328 mView.getContext().getResources(), 1329 desiredWindowWidth, desiredWindowHeight); 1330 } 1331 } 1332 1333 if (layoutRequested) { 1334 // Clear this now, so that if anything requests a layout in the 1335 // rest of this function we will catch it and re-run a full 1336 // layout pass. 1337 mLayoutRequested = false; 1338 } 1339 1340 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1341 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1342 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1343 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1344 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1345 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1346 1347 final boolean computesInternalInsets = 1348 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1349 1350 boolean insetsPending = false; 1351 int relayoutResult = 0; 1352 1353 if (mFirst || windowShouldResize || insetsChanged || 1354 viewVisibilityChanged || params != null) { 1355 1356 if (viewVisibility == View.VISIBLE) { 1357 // If this window is giving internal insets to the window 1358 // manager, and it is being added or changing its visibility, 1359 // then we want to first give the window manager "fake" 1360 // insets to cause it to effectively ignore the content of 1361 // the window during layout. This avoids it briefly causing 1362 // other windows to resize/move based on the raw frame of the 1363 // window, waiting until we can finish laying out this window 1364 // and get back to the window manager with the ultimately 1365 // computed insets. 1366 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1367 } 1368 1369 if (mSurfaceHolder != null) { 1370 mSurfaceHolder.mSurfaceLock.lock(); 1371 mDrawingAllowed = true; 1372 } 1373 1374 boolean hwInitialized = false; 1375 boolean contentInsetsChanged = false; 1376 boolean visibleInsetsChanged; 1377 boolean hadSurface = mSurface.isValid(); 1378 1379 try { 1380 if (DEBUG_LAYOUT) { 1381 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1382 host.getMeasuredHeight() + ", params=" + params); 1383 } 1384 1385 final int surfaceGenerationId = mSurface.getGenerationId(); 1386 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1387 1388 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1389 + " content=" + mPendingContentInsets.toShortString() 1390 + " visible=" + mPendingVisibleInsets.toShortString() 1391 + " surface=" + mSurface); 1392 1393 if (mPendingConfiguration.seq != 0) { 1394 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1395 + mPendingConfiguration); 1396 updateConfiguration(mPendingConfiguration, !mFirst); 1397 mPendingConfiguration.seq = 0; 1398 } 1399 1400 if (!mPendingSystemInsets.equals(mAttachInfo.mSystemInsets)) { 1401 activeRectChanged = true; 1402 mAttachInfo.mSystemInsets.set(mPendingSystemInsets); 1403 } 1404 contentInsetsChanged = !mPendingContentInsets.equals( 1405 mAttachInfo.mContentInsets); 1406 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1407 mAttachInfo.mVisibleInsets); 1408 if (contentInsetsChanged) { 1409 if (mWidth > 0 && mHeight > 0 && lp != null && 1410 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1411 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1412 mSurface != null && mSurface.isValid() && 1413 !mAttachInfo.mTurnOffWindowResizeAnim && 1414 mAttachInfo.mHardwareRenderer != null && 1415 mAttachInfo.mHardwareRenderer.isEnabled() && 1416 mAttachInfo.mHardwareRenderer.validate() && 1417 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1418 1419 disposeResizeBuffer(); 1420 1421 boolean completed = false; 1422 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1423 HardwareCanvas layerCanvas = null; 1424 try { 1425 if (mResizeBuffer == null) { 1426 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1427 mWidth, mHeight, false); 1428 } else if (mResizeBuffer.getWidth() != mWidth || 1429 mResizeBuffer.getHeight() != mHeight) { 1430 mResizeBuffer.resize(mWidth, mHeight); 1431 } 1432 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1433 layerCanvas.setViewport(mWidth, mHeight); 1434 layerCanvas.onPreDraw(null); 1435 final int restoreCount = layerCanvas.save(); 1436 1437 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1438 1439 int yoff; 1440 final boolean scrolling = mScroller != null 1441 && mScroller.computeScrollOffset(); 1442 if (scrolling) { 1443 yoff = mScroller.getCurrY(); 1444 mScroller.abortAnimation(); 1445 } else { 1446 yoff = mScrollY; 1447 } 1448 1449 layerCanvas.translate(0, -yoff); 1450 if (mTranslator != null) { 1451 mTranslator.translateCanvas(layerCanvas); 1452 } 1453 1454 mView.draw(layerCanvas); 1455 1456 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1457 1458 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1459 mResizeBufferDuration = mView.getResources().getInteger( 1460 com.android.internal.R.integer.config_mediumAnimTime); 1461 completed = true; 1462 1463 layerCanvas.restoreToCount(restoreCount); 1464 } catch (OutOfMemoryError e) { 1465 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1466 } finally { 1467 if (layerCanvas != null) { 1468 layerCanvas.onPostDraw(); 1469 } 1470 if (mResizeBuffer != null) { 1471 mResizeBuffer.end(hwRendererCanvas); 1472 if (!completed) { 1473 mResizeBuffer.destroy(); 1474 mResizeBuffer = null; 1475 } 1476 } 1477 } 1478 } 1479 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1480 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1481 + mAttachInfo.mContentInsets); 1482 } 1483 if (contentInsetsChanged || mLastSystemUiVisibility != 1484 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1485 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1486 mFitSystemWindowsRequested = false; 1487 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1488 host.fitSystemWindows(mFitSystemWindowsInsets); 1489 } 1490 if (visibleInsetsChanged) { 1491 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1492 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1493 + mAttachInfo.mVisibleInsets); 1494 } 1495 1496 if (!hadSurface) { 1497 if (mSurface.isValid()) { 1498 // If we are creating a new surface, then we need to 1499 // completely redraw it. Also, when we get to the 1500 // point of drawing it we will hold off and schedule 1501 // a new traversal instead. This is so we can tell the 1502 // window manager about all of the windows being displayed 1503 // before actually drawing them, so it can display then 1504 // all at once. 1505 newSurface = true; 1506 activeRectChanged = true; 1507 mFullRedrawNeeded = true; 1508 mPreviousTransparentRegion.setEmpty(); 1509 1510 if (mAttachInfo.mHardwareRenderer != null) { 1511 try { 1512 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1513 } catch (Surface.OutOfResourcesException e) { 1514 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1515 try { 1516 if (!sWindowSession.outOfMemory(mWindow)) { 1517 Slog.w(TAG, "No processes killed for memory; killing self"); 1518 Process.killProcess(Process.myPid()); 1519 } 1520 } catch (RemoteException ex) { 1521 } 1522 mLayoutRequested = true; // ask wm for a new surface next time. 1523 return; 1524 } 1525 } 1526 } 1527 } else if (!mSurface.isValid()) { 1528 // If the surface has been removed, then reset the scroll 1529 // positions. 1530 mLastScrolledFocus = null; 1531 mScrollY = mCurScrollY = 0; 1532 if (mScroller != null) { 1533 mScroller.abortAnimation(); 1534 } 1535 disposeResizeBuffer(); 1536 // Our surface is gone 1537 if (mAttachInfo.mHardwareRenderer != null && 1538 mAttachInfo.mHardwareRenderer.isEnabled()) { 1539 mAttachInfo.mHardwareRenderer.destroy(true); 1540 } 1541 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1542 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1543 mFullRedrawNeeded = true; 1544 try { 1545 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1546 } catch (Surface.OutOfResourcesException e) { 1547 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1548 try { 1549 if (!sWindowSession.outOfMemory(mWindow)) { 1550 Slog.w(TAG, "No processes killed for memory; killing self"); 1551 Process.killProcess(Process.myPid()); 1552 } 1553 } catch (RemoteException ex) { 1554 } 1555 mLayoutRequested = true; // ask wm for a new surface next time. 1556 return; 1557 } 1558 } 1559 } catch (RemoteException e) { 1560 } 1561 1562 if (DEBUG_ORIENTATION) Log.v( 1563 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1564 1565 attachInfo.mWindowLeft = frame.left; 1566 attachInfo.mWindowTop = frame.top; 1567 1568 // !!FIXME!! This next section handles the case where we did not get the 1569 // window size we asked for. We should avoid this by getting a maximum size from 1570 // the window session beforehand. 1571 if (mWidth != frame.width() || mHeight != frame.height()) { 1572 activeRectChanged = true; 1573 mWidth = frame.width(); 1574 mHeight = frame.height(); 1575 } 1576 1577 if (mSurfaceHolder != null) { 1578 // The app owns the surface; tell it about what is going on. 1579 if (mSurface.isValid()) { 1580 // XXX .copyFrom() doesn't work! 1581 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1582 mSurfaceHolder.mSurface = mSurface; 1583 } 1584 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1585 mSurfaceHolder.mSurfaceLock.unlock(); 1586 if (mSurface.isValid()) { 1587 if (!hadSurface) { 1588 mSurfaceHolder.ungetCallbacks(); 1589 1590 mIsCreating = true; 1591 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1592 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1593 if (callbacks != null) { 1594 for (SurfaceHolder.Callback c : callbacks) { 1595 c.surfaceCreated(mSurfaceHolder); 1596 } 1597 } 1598 surfaceChanged = true; 1599 } 1600 if (surfaceChanged) { 1601 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1602 lp.format, mWidth, mHeight); 1603 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1604 if (callbacks != null) { 1605 for (SurfaceHolder.Callback c : callbacks) { 1606 c.surfaceChanged(mSurfaceHolder, lp.format, 1607 mWidth, mHeight); 1608 } 1609 } 1610 } 1611 mIsCreating = false; 1612 } else if (hadSurface) { 1613 mSurfaceHolder.ungetCallbacks(); 1614 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1615 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1616 if (callbacks != null) { 1617 for (SurfaceHolder.Callback c : callbacks) { 1618 c.surfaceDestroyed(mSurfaceHolder); 1619 } 1620 } 1621 mSurfaceHolder.mSurfaceLock.lock(); 1622 try { 1623 mSurfaceHolder.mSurface = new Surface(); 1624 } finally { 1625 mSurfaceHolder.mSurfaceLock.unlock(); 1626 } 1627 } 1628 } 1629 1630 if (mAttachInfo.mHardwareRenderer != null && 1631 mAttachInfo.mHardwareRenderer.isEnabled()) { 1632 if (hwInitialized || windowShouldResize || 1633 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1634 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1635 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1636 if (!hwInitialized) { 1637 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1638 } 1639 } 1640 } 1641 1642 if (!mStopped) { 1643 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1644 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1645 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1646 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1647 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1648 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1649 1650 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1651 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1652 + " mHeight=" + mHeight 1653 + " measuredHeight=" + host.getMeasuredHeight() 1654 + " coveredInsetsChanged=" + contentInsetsChanged); 1655 1656 // Ask host how big it wants to be 1657 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1658 1659 // Implementation of weights from WindowManager.LayoutParams 1660 // We just grow the dimensions as needed and re-measure if 1661 // needs be 1662 int width = host.getMeasuredWidth(); 1663 int height = host.getMeasuredHeight(); 1664 boolean measureAgain = false; 1665 1666 if (lp.horizontalWeight > 0.0f) { 1667 width += (int) ((mWidth - width) * lp.horizontalWeight); 1668 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1669 MeasureSpec.EXACTLY); 1670 measureAgain = true; 1671 } 1672 if (lp.verticalWeight > 0.0f) { 1673 height += (int) ((mHeight - height) * lp.verticalWeight); 1674 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1675 MeasureSpec.EXACTLY); 1676 measureAgain = true; 1677 } 1678 1679 if (measureAgain) { 1680 if (DEBUG_LAYOUT) Log.v(TAG, 1681 "And hey let's measure once more: width=" + width 1682 + " height=" + height); 1683 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1684 } 1685 1686 layoutRequested = true; 1687 } 1688 } 1689 } 1690 1691 if (activeRectChanged && mSurface.isValid()) { 1692 mActiveRect.set(attachInfo.mSystemInsets.left, attachInfo.mSystemInsets.top, 1693 mWidth - attachInfo.mSystemInsets.right, 1694 mHeight - attachInfo.mSystemInsets.bottom); 1695 //Log.i(TAG, "Active rect " + mWindowAttributes.getTitle() + ": " + mActiveRect); 1696 mSurface.setActiveRect(mActiveRect); 1697 } 1698 1699 final boolean didLayout = layoutRequested && !mStopped; 1700 boolean triggerGlobalLayoutListener = didLayout 1701 || attachInfo.mRecomputeGlobalAttributes; 1702 if (didLayout) { 1703 mLayoutRequested = false; 1704 mScrollMayChange = true; 1705 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1706 TAG, "Laying out " + host + " to (" + 1707 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1708 long startTime = 0L; 1709 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1710 startTime = SystemClock.elapsedRealtime(); 1711 } 1712 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1713 1714 if (false && ViewDebug.consistencyCheckEnabled) { 1715 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1716 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1717 + "please refer to the logs with the tag " 1718 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1719 } 1720 } 1721 1722 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1723 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1724 } 1725 1726 // By this point all views have been sized and positionned 1727 // We can compute the transparent area 1728 1729 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1730 // start out transparent 1731 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1732 host.getLocationInWindow(mTmpLocation); 1733 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1734 mTmpLocation[0] + host.mRight - host.mLeft, 1735 mTmpLocation[1] + host.mBottom - host.mTop); 1736 1737 host.gatherTransparentRegion(mTransparentRegion); 1738 if (mTranslator != null) { 1739 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1740 } 1741 1742 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1743 mPreviousTransparentRegion.set(mTransparentRegion); 1744 // reconfigure window manager 1745 try { 1746 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1747 } catch (RemoteException e) { 1748 } 1749 } 1750 } 1751 1752 if (DBG) { 1753 System.out.println("======================================"); 1754 System.out.println("performTraversals -- after setFrame"); 1755 host.debug(); 1756 } 1757 } 1758 1759 if (triggerGlobalLayoutListener) { 1760 attachInfo.mRecomputeGlobalAttributes = false; 1761 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1762 1763 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1764 postSendWindowContentChangedCallback(mView); 1765 } 1766 } 1767 1768 if (computesInternalInsets) { 1769 // Clear the original insets. 1770 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1771 insets.reset(); 1772 1773 // Compute new insets in place. 1774 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1775 1776 // Tell the window manager. 1777 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1778 mLastGivenInsets.set(insets); 1779 1780 // Translate insets to screen coordinates if needed. 1781 final Rect contentInsets; 1782 final Rect visibleInsets; 1783 final Region touchableRegion; 1784 if (mTranslator != null) { 1785 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1786 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1787 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1788 } else { 1789 contentInsets = insets.contentInsets; 1790 visibleInsets = insets.visibleInsets; 1791 touchableRegion = insets.touchableRegion; 1792 } 1793 1794 try { 1795 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1796 contentInsets, visibleInsets, touchableRegion); 1797 } catch (RemoteException e) { 1798 } 1799 } 1800 } 1801 1802 boolean skipDraw = false; 1803 1804 if (mFirst) { 1805 // handle first focus request 1806 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1807 + mView.hasFocus()); 1808 if (mView != null) { 1809 if (!mView.hasFocus()) { 1810 mView.requestFocus(View.FOCUS_FORWARD); 1811 mFocusedView = mRealFocusedView = mView.findFocus(); 1812 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1813 + mFocusedView); 1814 } else { 1815 mRealFocusedView = mView.findFocus(); 1816 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1817 + mRealFocusedView); 1818 } 1819 } 1820 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1821 // The first time we relayout the window, if the system is 1822 // doing window animations, we want to hold of on any future 1823 // draws until the animation is done. 1824 mWindowsAnimating = true; 1825 } 1826 } else if (mWindowsAnimating) { 1827 skipDraw = true; 1828 } 1829 1830 mFirst = false; 1831 mWillDrawSoon = false; 1832 mNewSurfaceNeeded = false; 1833 mViewVisibility = viewVisibility; 1834 1835 if (mAttachInfo.mHasWindowFocus) { 1836 final boolean imTarget = WindowManager.LayoutParams 1837 .mayUseInputMethod(mWindowAttributes.flags); 1838 if (imTarget != mLastWasImTarget) { 1839 mLastWasImTarget = imTarget; 1840 InputMethodManager imm = InputMethodManager.peekInstance(); 1841 if (imm != null && imTarget) { 1842 imm.startGettingWindowFocus(mView); 1843 imm.onWindowFocus(mView, mView.findFocus(), 1844 mWindowAttributes.softInputMode, 1845 !mHasHadWindowFocus, mWindowAttributes.flags); 1846 } 1847 } 1848 } 1849 1850 // Remember if we must report the next draw. 1851 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1852 mReportNextDraw = true; 1853 } 1854 1855 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1856 viewVisibility != View.VISIBLE; 1857 1858 if (!cancelDraw && !newSurface) { 1859 if (!skipDraw || mReportNextDraw) { 1860 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1861 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1862 mPendingTransitions.get(i).startChangingAnimations(); 1863 } 1864 mPendingTransitions.clear(); 1865 } 1866 1867 performDraw(); 1868 } 1869 } else { 1870 // End any pending transitions on this non-visible window 1871 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1872 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1873 mPendingTransitions.get(i).endChangingAnimations(); 1874 } 1875 mPendingTransitions.clear(); 1876 } 1877 1878 if (viewVisibility == View.VISIBLE) { 1879 // Try again 1880 scheduleTraversals(); 1881 } 1882 } 1883 } 1884 1885 public void requestTransparentRegion(View child) { 1886 // the test below should not fail unless someone is messing with us 1887 checkThread(); 1888 if (mView == child) { 1889 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1890 // Need to make sure we re-evaluate the window attributes next 1891 // time around, to ensure the window has the correct format. 1892 mWindowAttributesChanged = true; 1893 mWindowAttributesChangesFlag = 0; 1894 requestLayout(); 1895 } 1896 } 1897 1898 /** 1899 * Figures out the measure spec for the root view in a window based on it's 1900 * layout params. 1901 * 1902 * @param windowSize 1903 * The available width or height of the window 1904 * 1905 * @param rootDimension 1906 * The layout params for one dimension (width or height) of the 1907 * window. 1908 * 1909 * @return The measure spec to use to measure the root view. 1910 */ 1911 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1912 int measureSpec; 1913 switch (rootDimension) { 1914 1915 case ViewGroup.LayoutParams.MATCH_PARENT: 1916 // Window can't resize. Force root view to be windowSize. 1917 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1918 break; 1919 case ViewGroup.LayoutParams.WRAP_CONTENT: 1920 // Window can resize. Set max size for root view. 1921 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1922 break; 1923 default: 1924 // Window wants to be an exact size. Force root view to be that size. 1925 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1926 break; 1927 } 1928 return measureSpec; 1929 } 1930 1931 int mHardwareYOffset; 1932 int mResizeAlpha; 1933 final Paint mResizePaint = new Paint(); 1934 1935 public void onHardwarePreDraw(HardwareCanvas canvas) { 1936 canvas.translate(0, -mHardwareYOffset); 1937 } 1938 1939 public void onHardwarePostDraw(HardwareCanvas canvas) { 1940 if (mResizeBuffer != null) { 1941 mResizePaint.setAlpha(mResizeAlpha); 1942 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1943 } 1944 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1945 } 1946 1947 /** 1948 * @hide 1949 */ 1950 void outputDisplayList(View view) { 1951 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1952 DisplayList displayList = view.getDisplayList(); 1953 if (displayList != null) { 1954 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1955 } 1956 } 1957 } 1958 1959 /** 1960 * @see #PROPERTY_PROFILE_RENDERING 1961 */ 1962 private void profileRendering(boolean enabled) { 1963 if (mProfileRendering) { 1964 mRenderProfilingEnabled = enabled; 1965 if (mRenderProfiler == null) { 1966 mRenderProfiler = new Thread(new Runnable() { 1967 @Override 1968 public void run() { 1969 Log.d(TAG, "Starting profiling thread"); 1970 while (mRenderProfilingEnabled) { 1971 mAttachInfo.mHandler.post(new Runnable() { 1972 @Override 1973 public void run() { 1974 mDirty.set(0, 0, mWidth, mHeight); 1975 scheduleTraversals(); 1976 } 1977 }); 1978 try { 1979 // TODO: This should use vsync when we get an API 1980 Thread.sleep(15); 1981 } catch (InterruptedException e) { 1982 Log.d(TAG, "Exiting profiling thread"); 1983 } 1984 } 1985 } 1986 }, "Rendering Profiler"); 1987 mRenderProfiler.start(); 1988 } else { 1989 mRenderProfiler.interrupt(); 1990 mRenderProfiler = null; 1991 } 1992 } 1993 } 1994 1995 /** 1996 * Called from draw() when DEBUG_FPS is enabled 1997 */ 1998 private void trackFPS() { 1999 // Tracks frames per second drawn. First value in a series of draws may be bogus 2000 // because it down not account for the intervening idle time 2001 long nowTime = System.currentTimeMillis(); 2002 if (mFpsStartTime < 0) { 2003 mFpsStartTime = mFpsPrevTime = nowTime; 2004 mFpsNumFrames = 0; 2005 } else { 2006 ++mFpsNumFrames; 2007 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2008 long frameTime = nowTime - mFpsPrevTime; 2009 long totalTime = nowTime - mFpsStartTime; 2010 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2011 mFpsPrevTime = nowTime; 2012 if (totalTime > 1000) { 2013 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2014 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2015 mFpsStartTime = nowTime; 2016 mFpsNumFrames = 0; 2017 } 2018 } 2019 } 2020 2021 private void performDraw() { 2022 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2023 return; 2024 } 2025 2026 final long drawStartTime; 2027 if (ViewDebug.DEBUG_LATENCY) { 2028 drawStartTime = System.nanoTime(); 2029 if (mLastDrawFinishedTimeNanos != 0) { 2030 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 2031 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 2032 + "ms since the last draw finished."); 2033 } else { 2034 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 2035 } 2036 } 2037 2038 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2039 mFullRedrawNeeded = false; 2040 2041 mIsDrawing = true; 2042 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2043 try { 2044 draw(fullRedrawNeeded); 2045 } finally { 2046 mIsDrawing = false; 2047 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2048 } 2049 2050 if (ViewDebug.DEBUG_LATENCY) { 2051 long now = System.nanoTime(); 2052 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 2053 + ((now - drawStartTime) * 0.000001f) 2054 + "ms."); 2055 mLastDrawFinishedTimeNanos = now; 2056 } 2057 2058 if (mReportNextDraw) { 2059 mReportNextDraw = false; 2060 2061 if (LOCAL_LOGV) { 2062 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2063 } 2064 if (mSurfaceHolder != null && mSurface.isValid()) { 2065 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2066 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2067 if (callbacks != null) { 2068 for (SurfaceHolder.Callback c : callbacks) { 2069 if (c instanceof SurfaceHolder.Callback2) { 2070 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2071 mSurfaceHolder); 2072 } 2073 } 2074 } 2075 } 2076 try { 2077 sWindowSession.finishDrawing(mWindow); 2078 } catch (RemoteException e) { 2079 } 2080 } 2081 } 2082 2083 private void draw(boolean fullRedrawNeeded) { 2084 Surface surface = mSurface; 2085 if (surface == null || !surface.isValid()) { 2086 return; 2087 } 2088 2089 if (DEBUG_FPS) { 2090 trackFPS(); 2091 } 2092 2093 if (!sFirstDrawComplete) { 2094 synchronized (sFirstDrawHandlers) { 2095 sFirstDrawComplete = true; 2096 final int count = sFirstDrawHandlers.size(); 2097 for (int i = 0; i< count; i++) { 2098 mHandler.post(sFirstDrawHandlers.get(i)); 2099 } 2100 } 2101 } 2102 2103 scrollToRectOrFocus(null, false); 2104 2105 final AttachInfo attachInfo = mAttachInfo; 2106 if (attachInfo.mViewScrollChanged) { 2107 attachInfo.mViewScrollChanged = false; 2108 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2109 } 2110 2111 int yoff; 2112 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2113 if (animating) { 2114 yoff = mScroller.getCurrY(); 2115 } else { 2116 yoff = mScrollY; 2117 } 2118 if (mCurScrollY != yoff) { 2119 mCurScrollY = yoff; 2120 fullRedrawNeeded = true; 2121 } 2122 2123 final float appScale = attachInfo.mApplicationScale; 2124 final boolean scalingRequired = attachInfo.mScalingRequired; 2125 2126 int resizeAlpha = 0; 2127 if (mResizeBuffer != null) { 2128 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2129 if (deltaTime < mResizeBufferDuration) { 2130 float amt = deltaTime/(float) mResizeBufferDuration; 2131 amt = mResizeInterpolator.getInterpolation(amt); 2132 animating = true; 2133 resizeAlpha = 255 - (int)(amt*255); 2134 } else { 2135 disposeResizeBuffer(); 2136 } 2137 } 2138 2139 final Rect dirty = mDirty; 2140 if (mSurfaceHolder != null) { 2141 // The app owns the surface, we won't draw. 2142 dirty.setEmpty(); 2143 if (animating) { 2144 if (mScroller != null) { 2145 mScroller.abortAnimation(); 2146 } 2147 disposeResizeBuffer(); 2148 } 2149 return; 2150 } 2151 2152 if (fullRedrawNeeded) { 2153 attachInfo.mIgnoreDirtyState = true; 2154 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2155 } 2156 2157 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2158 Log.v(TAG, "Draw " + mView + "/" 2159 + mWindowAttributes.getTitle() 2160 + ": dirty={" + dirty.left + "," + dirty.top 2161 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2162 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2163 appScale + ", width=" + mWidth + ", height=" + mHeight); 2164 } 2165 2166 attachInfo.mTreeObserver.dispatchOnDraw(); 2167 2168 if (!dirty.isEmpty() || mIsAnimating) { 2169 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2170 // Draw with hardware renderer. 2171 mIsAnimating = false; 2172 mHardwareYOffset = yoff; 2173 mResizeAlpha = resizeAlpha; 2174 2175 mCurrentDirty.set(dirty); 2176 mCurrentDirty.union(mPreviousDirty); 2177 mPreviousDirty.set(dirty); 2178 dirty.setEmpty(); 2179 2180 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2181 animating ? null : mCurrentDirty)) { 2182 mPreviousDirty.set(0, 0, mWidth, mHeight); 2183 } 2184 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2185 return; 2186 } 2187 } 2188 2189 if (animating) { 2190 mFullRedrawNeeded = true; 2191 scheduleTraversals(); 2192 } 2193 } 2194 2195 /** 2196 * @return true if drawing was succesfull, false if an error occurred 2197 */ 2198 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2199 boolean scalingRequired, Rect dirty) { 2200 2201 // Draw with software renderer. 2202 Canvas canvas; 2203 try { 2204 int left = dirty.left; 2205 int top = dirty.top; 2206 int right = dirty.right; 2207 int bottom = dirty.bottom; 2208 2209 final long lockCanvasStartTime; 2210 if (ViewDebug.DEBUG_LATENCY) { 2211 lockCanvasStartTime = System.nanoTime(); 2212 } 2213 2214 canvas = mSurface.lockCanvas(dirty); 2215 2216 if (ViewDebug.DEBUG_LATENCY) { 2217 long now = System.nanoTime(); 2218 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2219 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2220 } 2221 2222 if (left != dirty.left || top != dirty.top || right != dirty.right || 2223 bottom != dirty.bottom) { 2224 attachInfo.mIgnoreDirtyState = true; 2225 } 2226 2227 // TODO: Do this in native 2228 canvas.setDensity(mDensity); 2229 } catch (Surface.OutOfResourcesException e) { 2230 Log.e(TAG, "OutOfResourcesException locking surface", e); 2231 try { 2232 if (!sWindowSession.outOfMemory(mWindow)) { 2233 Slog.w(TAG, "No processes killed for memory; killing self"); 2234 Process.killProcess(Process.myPid()); 2235 } 2236 } catch (RemoteException ex) { 2237 } 2238 mLayoutRequested = true; // ask wm for a new surface next time. 2239 return false; 2240 } catch (IllegalArgumentException e) { 2241 Log.e(TAG, "IllegalArgumentException locking surface", e); 2242 // Don't assume this is due to out of memory, it could be 2243 // something else, and if it is something else then we could 2244 // kill stuff (or ourself) for no reason. 2245 mLayoutRequested = true; // ask wm for a new surface next time. 2246 return false; 2247 } 2248 2249 try { 2250 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2251 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2252 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2253 //canvas.drawARGB(255, 255, 0, 0); 2254 } 2255 2256 long startTime = 0L; 2257 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2258 startTime = SystemClock.elapsedRealtime(); 2259 } 2260 2261 // If this bitmap's format includes an alpha channel, we 2262 // need to clear it before drawing so that the child will 2263 // properly re-composite its drawing on a transparent 2264 // background. This automatically respects the clip/dirty region 2265 // or 2266 // If we are applying an offset, we need to clear the area 2267 // where the offset doesn't appear to avoid having garbage 2268 // left in the blank areas. 2269 if (!canvas.isOpaque() || yoff != 0) { 2270 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2271 } 2272 2273 dirty.setEmpty(); 2274 mIsAnimating = false; 2275 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2276 mView.mPrivateFlags |= View.DRAWN; 2277 2278 if (DEBUG_DRAW) { 2279 Context cxt = mView.getContext(); 2280 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2281 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2282 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2283 } 2284 try { 2285 canvas.translate(0, -yoff); 2286 if (mTranslator != null) { 2287 mTranslator.translateCanvas(canvas); 2288 } 2289 canvas.setScreenDensity(scalingRequired 2290 ? DisplayMetrics.DENSITY_DEVICE : 0); 2291 attachInfo.mSetIgnoreDirtyState = false; 2292 2293 final long drawStartTime; 2294 if (ViewDebug.DEBUG_LATENCY) { 2295 drawStartTime = System.nanoTime(); 2296 } 2297 2298 mView.draw(canvas); 2299 2300 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2301 2302 if (ViewDebug.DEBUG_LATENCY) { 2303 long now = System.nanoTime(); 2304 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2305 + ((now - drawStartTime) * 0.000001f) + "ms"); 2306 } 2307 } finally { 2308 if (!attachInfo.mSetIgnoreDirtyState) { 2309 // Only clear the flag if it was not set during the mView.draw() call 2310 attachInfo.mIgnoreDirtyState = false; 2311 } 2312 } 2313 2314 if (false && ViewDebug.consistencyCheckEnabled) { 2315 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2316 } 2317 2318 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2319 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2320 } 2321 } finally { 2322 final long unlockCanvasAndPostStartTime; 2323 if (ViewDebug.DEBUG_LATENCY) { 2324 unlockCanvasAndPostStartTime = System.nanoTime(); 2325 } 2326 2327 surface.unlockCanvasAndPost(canvas); 2328 2329 if (ViewDebug.DEBUG_LATENCY) { 2330 long now = System.nanoTime(); 2331 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2332 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2333 } 2334 2335 if (LOCAL_LOGV) { 2336 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2337 } 2338 } 2339 return true; 2340 } 2341 2342 /** 2343 * We want to draw a highlight around the current accessibility focused. 2344 * Since adding a style for all possible view is not a viable option we 2345 * have this specialized drawing method. 2346 * 2347 * Note: We are doing this here to be able to draw the highlight for 2348 * virtual views in addition to real ones. 2349 * 2350 * @param canvas The canvas on which to draw. 2351 */ 2352 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2353 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2354 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2355 return; 2356 } 2357 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2358 return; 2359 } 2360 Drawable drawable = getAccessibilityFocusedDrawable(); 2361 if (drawable == null) { 2362 return; 2363 } 2364 AccessibilityNodeProvider provider = 2365 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2366 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2367 if (provider == null) { 2368 mAccessibilityFocusedHost.getDrawingRect(bounds); 2369 if (mView instanceof ViewGroup) { 2370 ViewGroup viewGroup = (ViewGroup) mView; 2371 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2372 } 2373 } else { 2374 if (mAccessibilityFocusedVirtualView == null) { 2375 mAccessibilityFocusedVirtualView = provider.findAccessibilitiyFocus(View.NO_ID); 2376 } 2377 if (mAccessibilityFocusedVirtualView == null) { 2378 return; 2379 } 2380 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2381 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2382 } 2383 drawable.setBounds(bounds); 2384 drawable.draw(canvas); 2385 } 2386 2387 private Drawable getAccessibilityFocusedDrawable() { 2388 if (mAttachInfo != null) { 2389 // Lazily load the accessibility focus drawable. 2390 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2391 TypedValue value = new TypedValue(); 2392 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2393 R.attr.accessibilityFocusedDrawable, value, true); 2394 if (resolved) { 2395 mAttachInfo.mAccessibilityFocusDrawable = 2396 mView.mContext.getResources().getDrawable(value.resourceId); 2397 } 2398 } 2399 return mAttachInfo.mAccessibilityFocusDrawable; 2400 } 2401 return null; 2402 } 2403 2404 void invalidateDisplayLists() { 2405 final ArrayList<DisplayList> displayLists = mDisplayLists; 2406 final int count = displayLists.size(); 2407 2408 for (int i = 0; i < count; i++) { 2409 displayLists.get(i).invalidate(); 2410 } 2411 2412 displayLists.clear(); 2413 } 2414 2415 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2416 final View.AttachInfo attachInfo = mAttachInfo; 2417 final Rect ci = attachInfo.mContentInsets; 2418 final Rect vi = attachInfo.mVisibleInsets; 2419 int scrollY = 0; 2420 boolean handled = false; 2421 2422 if (vi.left > ci.left || vi.top > ci.top 2423 || vi.right > ci.right || vi.bottom > ci.bottom) { 2424 // We'll assume that we aren't going to change the scroll 2425 // offset, since we want to avoid that unless it is actually 2426 // going to make the focus visible... otherwise we scroll 2427 // all over the place. 2428 scrollY = mScrollY; 2429 // We can be called for two different situations: during a draw, 2430 // to update the scroll position if the focus has changed (in which 2431 // case 'rectangle' is null), or in response to a 2432 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2433 // is non-null and we just want to scroll to whatever that 2434 // rectangle is). 2435 View focus = mRealFocusedView; 2436 2437 // When in touch mode, focus points to the previously focused view, 2438 // which may have been removed from the view hierarchy. The following 2439 // line checks whether the view is still in our hierarchy. 2440 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2441 mRealFocusedView = null; 2442 return false; 2443 } 2444 2445 if (focus != mLastScrolledFocus) { 2446 // If the focus has changed, then ignore any requests to scroll 2447 // to a rectangle; first we want to make sure the entire focus 2448 // view is visible. 2449 rectangle = null; 2450 } 2451 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2452 + " rectangle=" + rectangle + " ci=" + ci 2453 + " vi=" + vi); 2454 if (focus == mLastScrolledFocus && !mScrollMayChange 2455 && rectangle == null) { 2456 // Optimization: if the focus hasn't changed since last 2457 // time, and no layout has happened, then just leave things 2458 // as they are. 2459 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2460 + mScrollY + " vi=" + vi.toShortString()); 2461 } else if (focus != null) { 2462 // We need to determine if the currently focused view is 2463 // within the visible part of the window and, if not, apply 2464 // a pan so it can be seen. 2465 mLastScrolledFocus = focus; 2466 mScrollMayChange = false; 2467 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2468 // Try to find the rectangle from the focus view. 2469 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2470 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2471 + mView.getWidth() + " h=" + mView.getHeight() 2472 + " ci=" + ci.toShortString() 2473 + " vi=" + vi.toShortString()); 2474 if (rectangle == null) { 2475 focus.getFocusedRect(mTempRect); 2476 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2477 + ": focusRect=" + mTempRect.toShortString()); 2478 if (mView instanceof ViewGroup) { 2479 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2480 focus, mTempRect); 2481 } 2482 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2483 "Focus in window: focusRect=" 2484 + mTempRect.toShortString() 2485 + " visRect=" + mVisRect.toShortString()); 2486 } else { 2487 mTempRect.set(rectangle); 2488 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2489 "Request scroll to rect: " 2490 + mTempRect.toShortString() 2491 + " visRect=" + mVisRect.toShortString()); 2492 } 2493 if (mTempRect.intersect(mVisRect)) { 2494 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2495 "Focus window visible rect: " 2496 + mTempRect.toShortString()); 2497 if (mTempRect.height() > 2498 (mView.getHeight()-vi.top-vi.bottom)) { 2499 // If the focus simply is not going to fit, then 2500 // best is probably just to leave things as-is. 2501 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2502 "Too tall; leaving scrollY=" + scrollY); 2503 } else if ((mTempRect.top-scrollY) < vi.top) { 2504 scrollY -= vi.top - (mTempRect.top-scrollY); 2505 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2506 "Top covered; scrollY=" + scrollY); 2507 } else if ((mTempRect.bottom-scrollY) 2508 > (mView.getHeight()-vi.bottom)) { 2509 scrollY += (mTempRect.bottom-scrollY) 2510 - (mView.getHeight()-vi.bottom); 2511 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2512 "Bottom covered; scrollY=" + scrollY); 2513 } 2514 handled = true; 2515 } 2516 } 2517 } 2518 } 2519 2520 if (scrollY != mScrollY) { 2521 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2522 + mScrollY + " , new=" + scrollY); 2523 if (!immediate && mResizeBuffer == null) { 2524 if (mScroller == null) { 2525 mScroller = new Scroller(mView.getContext()); 2526 } 2527 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2528 } else if (mScroller != null) { 2529 mScroller.abortAnimation(); 2530 } 2531 mScrollY = scrollY; 2532 } 2533 2534 return handled; 2535 } 2536 2537 void setAccessibilityFocusedHost(View host) { 2538 if (mAccessibilityFocusedHost != null && mAccessibilityFocusedVirtualView == null) { 2539 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2540 } 2541 mAccessibilityFocusedHost = host; 2542 mAccessibilityFocusedVirtualView = null; 2543 } 2544 2545 public void requestChildFocus(View child, View focused) { 2546 checkThread(); 2547 2548 if (DEBUG_INPUT_RESIZE) { 2549 Log.v(TAG, "Request child focus: focus now " + focused); 2550 } 2551 2552 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2553 scheduleTraversals(); 2554 2555 mFocusedView = mRealFocusedView = focused; 2556 } 2557 2558 public void clearChildFocus(View child) { 2559 checkThread(); 2560 2561 if (DEBUG_INPUT_RESIZE) { 2562 Log.v(TAG, "Clearing child focus"); 2563 } 2564 2565 mOldFocusedView = mFocusedView; 2566 2567 // Invoke the listener only if there is no view to take focus 2568 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2569 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2570 } 2571 2572 mFocusedView = mRealFocusedView = null; 2573 } 2574 2575 @Override 2576 public ViewParent getParentForAccessibility() { 2577 return null; 2578 } 2579 2580 public void focusableViewAvailable(View v) { 2581 checkThread(); 2582 if (mView != null) { 2583 if (!mView.hasFocus()) { 2584 v.requestFocus(); 2585 } else { 2586 // the one case where will transfer focus away from the current one 2587 // is if the current view is a view group that prefers to give focus 2588 // to its children first AND the view is a descendant of it. 2589 mFocusedView = mView.findFocus(); 2590 boolean descendantsHaveDibsOnFocus = 2591 (mFocusedView instanceof ViewGroup) && 2592 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2593 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2594 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2595 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2596 v.requestFocus(); 2597 } 2598 } 2599 } 2600 } 2601 2602 public void recomputeViewAttributes(View child) { 2603 checkThread(); 2604 if (mView == child) { 2605 mAttachInfo.mRecomputeGlobalAttributes = true; 2606 if (!mWillDrawSoon) { 2607 scheduleTraversals(); 2608 } 2609 } 2610 } 2611 2612 void dispatchDetachedFromWindow() { 2613 if (mView != null && mView.mAttachInfo != null) { 2614 if (mAttachInfo.mHardwareRenderer != null && 2615 mAttachInfo.mHardwareRenderer.isEnabled()) { 2616 mAttachInfo.mHardwareRenderer.validate(); 2617 } 2618 mView.dispatchDetachedFromWindow(); 2619 } 2620 2621 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2622 mAccessibilityManager.removeAccessibilityStateChangeListener( 2623 mAccessibilityInteractionConnectionManager); 2624 removeSendWindowContentChangedCallback(); 2625 2626 destroyHardwareRenderer(); 2627 2628 mView = null; 2629 mAttachInfo.mRootView = null; 2630 mAttachInfo.mSurface = null; 2631 2632 mSurface.release(); 2633 2634 if (mInputQueueCallback != null && mInputQueue != null) { 2635 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2636 mInputQueueCallback = null; 2637 mInputQueue = null; 2638 } else if (mInputEventReceiver != null) { 2639 mInputEventReceiver.dispose(); 2640 mInputEventReceiver = null; 2641 } 2642 try { 2643 sWindowSession.remove(mWindow); 2644 } catch (RemoteException e) { 2645 } 2646 2647 // Dispose the input channel after removing the window so the Window Manager 2648 // doesn't interpret the input channel being closed as an abnormal termination. 2649 if (mInputChannel != null) { 2650 mInputChannel.dispose(); 2651 mInputChannel = null; 2652 } 2653 2654 unscheduleTraversals(); 2655 } 2656 2657 void updateConfiguration(Configuration config, boolean force) { 2658 if (DEBUG_CONFIGURATION) Log.v(TAG, 2659 "Applying new config to window " 2660 + mWindowAttributes.getTitle() 2661 + ": " + config); 2662 2663 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2664 if (ci != null) { 2665 config = new Configuration(config); 2666 ci.applyToConfiguration(config); 2667 } 2668 2669 synchronized (sConfigCallbacks) { 2670 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2671 sConfigCallbacks.get(i).onConfigurationChanged(config); 2672 } 2673 } 2674 if (mView != null) { 2675 // At this point the resources have been updated to 2676 // have the most recent config, whatever that is. Use 2677 // the on in them which may be newer. 2678 config = mView.getResources().getConfiguration(); 2679 if (force || mLastConfiguration.diff(config) != 0) { 2680 mLastConfiguration.setTo(config); 2681 mView.dispatchConfigurationChanged(config); 2682 } 2683 } 2684 } 2685 2686 /** 2687 * Return true if child is an ancestor of parent, (or equal to the parent). 2688 */ 2689 static boolean isViewDescendantOf(View child, View parent) { 2690 if (child == parent) { 2691 return true; 2692 } 2693 2694 final ViewParent theParent = child.getParent(); 2695 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2696 } 2697 2698 private static void forceLayout(View view) { 2699 view.forceLayout(); 2700 if (view instanceof ViewGroup) { 2701 ViewGroup group = (ViewGroup) view; 2702 final int count = group.getChildCount(); 2703 for (int i = 0; i < count; i++) { 2704 forceLayout(group.getChildAt(i)); 2705 } 2706 } 2707 } 2708 2709 private final static int MSG_INVALIDATE = 1; 2710 private final static int MSG_INVALIDATE_RECT = 2; 2711 private final static int MSG_DIE = 3; 2712 private final static int MSG_RESIZED = 4; 2713 private final static int MSG_RESIZED_REPORT = 5; 2714 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2715 private final static int MSG_DISPATCH_KEY = 7; 2716 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2717 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2718 private final static int MSG_IME_FINISHED_EVENT = 10; 2719 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2720 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2721 private final static int MSG_CHECK_FOCUS = 13; 2722 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2723 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2724 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2725 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2726 private final static int MSG_UPDATE_CONFIGURATION = 18; 2727 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2728 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2729 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2730 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2731 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2732 2733 final class ViewRootHandler extends Handler { 2734 @Override 2735 public String getMessageName(Message message) { 2736 switch (message.what) { 2737 case MSG_INVALIDATE: 2738 return "MSG_INVALIDATE"; 2739 case MSG_INVALIDATE_RECT: 2740 return "MSG_INVALIDATE_RECT"; 2741 case MSG_DIE: 2742 return "MSG_DIE"; 2743 case MSG_RESIZED: 2744 return "MSG_RESIZED"; 2745 case MSG_RESIZED_REPORT: 2746 return "MSG_RESIZED_REPORT"; 2747 case MSG_WINDOW_FOCUS_CHANGED: 2748 return "MSG_WINDOW_FOCUS_CHANGED"; 2749 case MSG_DISPATCH_KEY: 2750 return "MSG_DISPATCH_KEY"; 2751 case MSG_DISPATCH_APP_VISIBILITY: 2752 return "MSG_DISPATCH_APP_VISIBILITY"; 2753 case MSG_DISPATCH_GET_NEW_SURFACE: 2754 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2755 case MSG_IME_FINISHED_EVENT: 2756 return "MSG_IME_FINISHED_EVENT"; 2757 case MSG_DISPATCH_KEY_FROM_IME: 2758 return "MSG_DISPATCH_KEY_FROM_IME"; 2759 case MSG_FINISH_INPUT_CONNECTION: 2760 return "MSG_FINISH_INPUT_CONNECTION"; 2761 case MSG_CHECK_FOCUS: 2762 return "MSG_CHECK_FOCUS"; 2763 case MSG_CLOSE_SYSTEM_DIALOGS: 2764 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2765 case MSG_DISPATCH_DRAG_EVENT: 2766 return "MSG_DISPATCH_DRAG_EVENT"; 2767 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2768 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2769 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2770 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2771 case MSG_UPDATE_CONFIGURATION: 2772 return "MSG_UPDATE_CONFIGURATION"; 2773 case MSG_PROCESS_INPUT_EVENTS: 2774 return "MSG_PROCESS_INPUT_EVENTS"; 2775 case MSG_DISPATCH_SCREEN_STATE: 2776 return "MSG_DISPATCH_SCREEN_STATE"; 2777 case MSG_INVALIDATE_DISPLAY_LIST: 2778 return "MSG_INVALIDATE_DISPLAY_LIST"; 2779 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2780 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2781 case MSG_DISPATCH_DONE_ANIMATING: 2782 return "MSG_DISPATCH_DONE_ANIMATING"; 2783 } 2784 return super.getMessageName(message); 2785 } 2786 2787 @Override 2788 public void handleMessage(Message msg) { 2789 switch (msg.what) { 2790 case MSG_INVALIDATE: 2791 ((View) msg.obj).invalidate(); 2792 break; 2793 case MSG_INVALIDATE_RECT: 2794 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2795 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2796 info.release(); 2797 break; 2798 case MSG_IME_FINISHED_EVENT: 2799 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2800 break; 2801 case MSG_PROCESS_INPUT_EVENTS: 2802 mProcessInputEventsScheduled = false; 2803 doProcessInputEvents(); 2804 break; 2805 case MSG_DISPATCH_APP_VISIBILITY: 2806 handleAppVisibility(msg.arg1 != 0); 2807 break; 2808 case MSG_DISPATCH_GET_NEW_SURFACE: 2809 handleGetNewSurface(); 2810 break; 2811 case MSG_RESIZED: 2812 ResizedInfo ri = (ResizedInfo)msg.obj; 2813 2814 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2815 && mPendingSystemInsets.equals(ri.systemInsets) 2816 && mPendingContentInsets.equals(ri.contentInsets) 2817 && mPendingVisibleInsets.equals(ri.visibleInsets) 2818 && ((ResizedInfo)msg.obj).newConfig == null) { 2819 break; 2820 } 2821 // fall through... 2822 case MSG_RESIZED_REPORT: 2823 if (mAdded) { 2824 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2825 if (config != null) { 2826 updateConfiguration(config, false); 2827 } 2828 mWinFrame.left = 0; 2829 mWinFrame.right = msg.arg1; 2830 mWinFrame.top = 0; 2831 mWinFrame.bottom = msg.arg2; 2832 mPendingSystemInsets.set(((ResizedInfo)msg.obj).systemInsets); 2833 mPendingContentInsets.set(((ResizedInfo)msg.obj).contentInsets); 2834 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2835 if (msg.what == MSG_RESIZED_REPORT) { 2836 mReportNextDraw = true; 2837 } 2838 2839 if (mView != null) { 2840 forceLayout(mView); 2841 } 2842 requestLayout(); 2843 } 2844 break; 2845 case MSG_WINDOW_FOCUS_CHANGED: { 2846 if (mAdded) { 2847 boolean hasWindowFocus = msg.arg1 != 0; 2848 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2849 2850 profileRendering(hasWindowFocus); 2851 2852 if (hasWindowFocus) { 2853 boolean inTouchMode = msg.arg2 != 0; 2854 ensureTouchModeLocally(inTouchMode); 2855 2856 if (mAttachInfo.mHardwareRenderer != null && 2857 mSurface != null && mSurface.isValid()) { 2858 mFullRedrawNeeded = true; 2859 try { 2860 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2861 mHolder); 2862 } catch (Surface.OutOfResourcesException e) { 2863 Log.e(TAG, "OutOfResourcesException locking surface", e); 2864 try { 2865 if (!sWindowSession.outOfMemory(mWindow)) { 2866 Slog.w(TAG, "No processes killed for memory; killing self"); 2867 Process.killProcess(Process.myPid()); 2868 } 2869 } catch (RemoteException ex) { 2870 } 2871 // Retry in a bit. 2872 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2873 return; 2874 } 2875 } 2876 } 2877 2878 mLastWasImTarget = WindowManager.LayoutParams 2879 .mayUseInputMethod(mWindowAttributes.flags); 2880 2881 InputMethodManager imm = InputMethodManager.peekInstance(); 2882 if (mView != null) { 2883 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2884 imm.startGettingWindowFocus(mView); 2885 } 2886 mAttachInfo.mKeyDispatchState.reset(); 2887 mView.dispatchWindowFocusChanged(hasWindowFocus); 2888 } 2889 2890 // Note: must be done after the focus change callbacks, 2891 // so all of the view state is set up correctly. 2892 if (hasWindowFocus) { 2893 if (imm != null && mLastWasImTarget) { 2894 imm.onWindowFocus(mView, mView.findFocus(), 2895 mWindowAttributes.softInputMode, 2896 !mHasHadWindowFocus, mWindowAttributes.flags); 2897 } 2898 // Clear the forward bit. We can just do this directly, since 2899 // the window manager doesn't care about it. 2900 mWindowAttributes.softInputMode &= 2901 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2902 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2903 .softInputMode &= 2904 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2905 mHasHadWindowFocus = true; 2906 } 2907 2908 setAccessibilityFocusedHost(null); 2909 2910 if (mView != null && mAccessibilityManager.isEnabled()) { 2911 if (hasWindowFocus) { 2912 mView.sendAccessibilityEvent( 2913 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2914 // Give accessibility focus to the view that has input 2915 // focus if such, otherwise to the first one. 2916 if (mView instanceof ViewGroup) { 2917 ViewGroup viewGroup = (ViewGroup) mView; 2918 View focused = viewGroup.findFocus(); 2919 if (focused != null) { 2920 focused.requestAccessibilityFocus(); 2921 } 2922 } 2923 // There is no accessibility focus, despite our effort 2924 // above, now just give it to the first view. 2925 if (mAccessibilityFocusedHost == null) { 2926 mView.requestAccessibilityFocus(); 2927 } 2928 } 2929 } 2930 } 2931 } break; 2932 case MSG_DIE: 2933 doDie(); 2934 break; 2935 case MSG_DISPATCH_KEY: { 2936 KeyEvent event = (KeyEvent)msg.obj; 2937 enqueueInputEvent(event, null, 0, true); 2938 } break; 2939 case MSG_DISPATCH_KEY_FROM_IME: { 2940 if (LOCAL_LOGV) Log.v( 2941 TAG, "Dispatching key " 2942 + msg.obj + " from IME to " + mView); 2943 KeyEvent event = (KeyEvent)msg.obj; 2944 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2945 // The IME is trying to say this event is from the 2946 // system! Bad bad bad! 2947 //noinspection UnusedAssignment 2948 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2949 } 2950 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2951 } break; 2952 case MSG_FINISH_INPUT_CONNECTION: { 2953 InputMethodManager imm = InputMethodManager.peekInstance(); 2954 if (imm != null) { 2955 imm.reportFinishInputConnection((InputConnection)msg.obj); 2956 } 2957 } break; 2958 case MSG_CHECK_FOCUS: { 2959 InputMethodManager imm = InputMethodManager.peekInstance(); 2960 if (imm != null) { 2961 imm.checkFocus(); 2962 } 2963 } break; 2964 case MSG_CLOSE_SYSTEM_DIALOGS: { 2965 if (mView != null) { 2966 mView.onCloseSystemDialogs((String)msg.obj); 2967 } 2968 } break; 2969 case MSG_DISPATCH_DRAG_EVENT: 2970 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2971 DragEvent event = (DragEvent)msg.obj; 2972 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2973 handleDragEvent(event); 2974 } break; 2975 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2976 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2977 } break; 2978 case MSG_UPDATE_CONFIGURATION: { 2979 Configuration config = (Configuration)msg.obj; 2980 if (config.isOtherSeqNewer(mLastConfiguration)) { 2981 config = mLastConfiguration; 2982 } 2983 updateConfiguration(config, false); 2984 } break; 2985 case MSG_DISPATCH_SCREEN_STATE: { 2986 if (mView != null) { 2987 handleScreenStateChange(msg.arg1 == 1); 2988 } 2989 } break; 2990 case MSG_INVALIDATE_DISPLAY_LIST: { 2991 invalidateDisplayLists(); 2992 } break; 2993 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 2994 setAccessibilityFocusedHost(null); 2995 } break; 2996 case MSG_DISPATCH_DONE_ANIMATING: { 2997 handleDispatchDoneAnimating(); 2998 } break; 2999 } 3000 } 3001 } 3002 3003 final ViewRootHandler mHandler = new ViewRootHandler(); 3004 3005 /** 3006 * Something in the current window tells us we need to change the touch mode. For 3007 * example, we are not in touch mode, and the user touches the screen. 3008 * 3009 * If the touch mode has changed, tell the window manager, and handle it locally. 3010 * 3011 * @param inTouchMode Whether we want to be in touch mode. 3012 * @return True if the touch mode changed and focus changed was changed as a result 3013 */ 3014 boolean ensureTouchMode(boolean inTouchMode) { 3015 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3016 + "touch mode is " + mAttachInfo.mInTouchMode); 3017 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3018 3019 // tell the window manager 3020 try { 3021 sWindowSession.setInTouchMode(inTouchMode); 3022 } catch (RemoteException e) { 3023 throw new RuntimeException(e); 3024 } 3025 3026 // handle the change 3027 return ensureTouchModeLocally(inTouchMode); 3028 } 3029 3030 /** 3031 * Ensure that the touch mode for this window is set, and if it is changing, 3032 * take the appropriate action. 3033 * @param inTouchMode Whether we want to be in touch mode. 3034 * @return True if the touch mode changed and focus changed was changed as a result 3035 */ 3036 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3037 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3038 + "touch mode is " + mAttachInfo.mInTouchMode); 3039 3040 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3041 3042 mAttachInfo.mInTouchMode = inTouchMode; 3043 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3044 3045 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3046 } 3047 3048 private boolean enterTouchMode() { 3049 if (mView != null) { 3050 if (mView.hasFocus()) { 3051 // note: not relying on mFocusedView here because this could 3052 // be when the window is first being added, and mFocused isn't 3053 // set yet. 3054 final View focused = mView.findFocus(); 3055 if (focused != null && !focused.isFocusableInTouchMode()) { 3056 3057 final ViewGroup ancestorToTakeFocus = 3058 findAncestorToTakeFocusInTouchMode(focused); 3059 if (ancestorToTakeFocus != null) { 3060 // there is an ancestor that wants focus after its descendants that 3061 // is focusable in touch mode.. give it focus 3062 return ancestorToTakeFocus.requestFocus(); 3063 } else { 3064 // nothing appropriate to have focus in touch mode, clear it out 3065 mView.unFocus(); 3066 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3067 mFocusedView = null; 3068 mOldFocusedView = null; 3069 return true; 3070 } 3071 } 3072 } 3073 } 3074 return false; 3075 } 3076 3077 /** 3078 * Find an ancestor of focused that wants focus after its descendants and is 3079 * focusable in touch mode. 3080 * @param focused The currently focused view. 3081 * @return An appropriate view, or null if no such view exists. 3082 */ 3083 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3084 ViewParent parent = focused.getParent(); 3085 while (parent instanceof ViewGroup) { 3086 final ViewGroup vgParent = (ViewGroup) parent; 3087 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3088 && vgParent.isFocusableInTouchMode()) { 3089 return vgParent; 3090 } 3091 if (vgParent.isRootNamespace()) { 3092 return null; 3093 } else { 3094 parent = vgParent.getParent(); 3095 } 3096 } 3097 return null; 3098 } 3099 3100 private boolean leaveTouchMode() { 3101 if (mView != null) { 3102 if (mView.hasFocus()) { 3103 // i learned the hard way to not trust mFocusedView :) 3104 mFocusedView = mView.findFocus(); 3105 if (!(mFocusedView instanceof ViewGroup)) { 3106 // some view has focus, let it keep it 3107 return false; 3108 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3109 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3110 // some view group has focus, and doesn't prefer its children 3111 // over itself for focus, so let them keep it. 3112 return false; 3113 } 3114 } 3115 3116 // find the best view to give focus to in this brave new non-touch-mode 3117 // world 3118 final View focused = focusSearch(null, View.FOCUS_DOWN); 3119 if (focused != null) { 3120 return focused.requestFocus(View.FOCUS_DOWN); 3121 } 3122 } 3123 return false; 3124 } 3125 3126 private void deliverInputEvent(QueuedInputEvent q) { 3127 if (ViewDebug.DEBUG_LATENCY) { 3128 q.mDeliverTimeNanos = System.nanoTime(); 3129 } 3130 3131 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3132 try { 3133 if (q.mEvent instanceof KeyEvent) { 3134 deliverKeyEvent(q); 3135 } else { 3136 final int source = q.mEvent.getSource(); 3137 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3138 deliverPointerEvent(q); 3139 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3140 deliverTrackballEvent(q); 3141 } else { 3142 deliverGenericMotionEvent(q); 3143 } 3144 } 3145 } finally { 3146 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3147 } 3148 } 3149 3150 private void deliverPointerEvent(QueuedInputEvent q) { 3151 final MotionEvent event = (MotionEvent)q.mEvent; 3152 final boolean isTouchEvent = event.isTouchEvent(); 3153 if (mInputEventConsistencyVerifier != null) { 3154 if (isTouchEvent) { 3155 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3156 } else { 3157 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3158 } 3159 } 3160 3161 // If there is no view, then the event will not be handled. 3162 if (mView == null || !mAdded) { 3163 finishInputEvent(q, false); 3164 return; 3165 } 3166 3167 // Translate the pointer event for compatibility, if needed. 3168 if (mTranslator != null) { 3169 mTranslator.translateEventInScreenToAppWindow(event); 3170 } 3171 3172 // Enter touch mode on down or scroll. 3173 final int action = event.getAction(); 3174 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3175 ensureTouchMode(true); 3176 } 3177 3178 // Offset the scroll position. 3179 if (mCurScrollY != 0) { 3180 event.offsetLocation(0, mCurScrollY); 3181 } 3182 if (MEASURE_LATENCY) { 3183 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3184 } 3185 3186 // Remember the touch position for possible drag-initiation. 3187 if (isTouchEvent) { 3188 mLastTouchPoint.x = event.getRawX(); 3189 mLastTouchPoint.y = event.getRawY(); 3190 } 3191 3192 // Dispatch touch to view hierarchy. 3193 boolean handled = mView.dispatchPointerEvent(event); 3194 if (MEASURE_LATENCY) { 3195 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3196 } 3197 if (handled) { 3198 finishInputEvent(q, true); 3199 return; 3200 } 3201 3202 // Pointer event was unhandled. 3203 finishInputEvent(q, false); 3204 } 3205 3206 private void deliverTrackballEvent(QueuedInputEvent q) { 3207 final MotionEvent event = (MotionEvent)q.mEvent; 3208 if (mInputEventConsistencyVerifier != null) { 3209 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3210 } 3211 3212 // If there is no view, then the event will not be handled. 3213 if (mView == null || !mAdded) { 3214 finishInputEvent(q, false); 3215 return; 3216 } 3217 3218 // Deliver the trackball event to the view. 3219 if (mView.dispatchTrackballEvent(event)) { 3220 // If we reach this, we delivered a trackball event to mView and 3221 // mView consumed it. Because we will not translate the trackball 3222 // event into a key event, touch mode will not exit, so we exit 3223 // touch mode here. 3224 ensureTouchMode(false); 3225 3226 finishInputEvent(q, true); 3227 mLastTrackballTime = Integer.MIN_VALUE; 3228 return; 3229 } 3230 3231 // Translate the trackball event into DPAD keys and try to deliver those. 3232 final TrackballAxis x = mTrackballAxisX; 3233 final TrackballAxis y = mTrackballAxisY; 3234 3235 long curTime = SystemClock.uptimeMillis(); 3236 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3237 // It has been too long since the last movement, 3238 // so restart at the beginning. 3239 x.reset(0); 3240 y.reset(0); 3241 mLastTrackballTime = curTime; 3242 } 3243 3244 final int action = event.getAction(); 3245 final int metaState = event.getMetaState(); 3246 switch (action) { 3247 case MotionEvent.ACTION_DOWN: 3248 x.reset(2); 3249 y.reset(2); 3250 enqueueInputEvent(new KeyEvent(curTime, curTime, 3251 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3252 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3253 InputDevice.SOURCE_KEYBOARD)); 3254 break; 3255 case MotionEvent.ACTION_UP: 3256 x.reset(2); 3257 y.reset(2); 3258 enqueueInputEvent(new KeyEvent(curTime, curTime, 3259 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3260 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3261 InputDevice.SOURCE_KEYBOARD)); 3262 break; 3263 } 3264 3265 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3266 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3267 + " move=" + event.getX() 3268 + " / Y=" + y.position + " step=" 3269 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3270 + " move=" + event.getY()); 3271 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3272 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3273 3274 // Generate DPAD events based on the trackball movement. 3275 // We pick the axis that has moved the most as the direction of 3276 // the DPAD. When we generate DPAD events for one axis, then the 3277 // other axis is reset -- we don't want to perform DPAD jumps due 3278 // to slight movements in the trackball when making major movements 3279 // along the other axis. 3280 int keycode = 0; 3281 int movement = 0; 3282 float accel = 1; 3283 if (xOff > yOff) { 3284 movement = x.generate((2/event.getXPrecision())); 3285 if (movement != 0) { 3286 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3287 : KeyEvent.KEYCODE_DPAD_LEFT; 3288 accel = x.acceleration; 3289 y.reset(2); 3290 } 3291 } else if (yOff > 0) { 3292 movement = y.generate((2/event.getYPrecision())); 3293 if (movement != 0) { 3294 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3295 : KeyEvent.KEYCODE_DPAD_UP; 3296 accel = y.acceleration; 3297 x.reset(2); 3298 } 3299 } 3300 3301 if (keycode != 0) { 3302 if (movement < 0) movement = -movement; 3303 int accelMovement = (int)(movement * accel); 3304 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3305 + " accelMovement=" + accelMovement 3306 + " accel=" + accel); 3307 if (accelMovement > movement) { 3308 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3309 + keycode); 3310 movement--; 3311 int repeatCount = accelMovement - movement; 3312 enqueueInputEvent(new KeyEvent(curTime, curTime, 3313 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3314 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3315 InputDevice.SOURCE_KEYBOARD)); 3316 } 3317 while (movement > 0) { 3318 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3319 + keycode); 3320 movement--; 3321 curTime = SystemClock.uptimeMillis(); 3322 enqueueInputEvent(new KeyEvent(curTime, curTime, 3323 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3324 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3325 InputDevice.SOURCE_KEYBOARD)); 3326 enqueueInputEvent(new KeyEvent(curTime, curTime, 3327 KeyEvent.ACTION_UP, keycode, 0, metaState, 3328 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3329 InputDevice.SOURCE_KEYBOARD)); 3330 } 3331 mLastTrackballTime = curTime; 3332 } 3333 3334 // Unfortunately we can't tell whether the application consumed the keys, so 3335 // we always consider the trackball event handled. 3336 finishInputEvent(q, true); 3337 } 3338 3339 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3340 final MotionEvent event = (MotionEvent)q.mEvent; 3341 if (mInputEventConsistencyVerifier != null) { 3342 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3343 } 3344 3345 final int source = event.getSource(); 3346 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3347 3348 // If there is no view, then the event will not be handled. 3349 if (mView == null || !mAdded) { 3350 if (isJoystick) { 3351 updateJoystickDirection(event, false); 3352 } 3353 finishInputEvent(q, false); 3354 return; 3355 } 3356 3357 // Deliver the event to the view. 3358 if (mView.dispatchGenericMotionEvent(event)) { 3359 if (isJoystick) { 3360 updateJoystickDirection(event, false); 3361 } 3362 finishInputEvent(q, true); 3363 return; 3364 } 3365 3366 if (isJoystick) { 3367 // Translate the joystick event into DPAD keys and try to deliver those. 3368 updateJoystickDirection(event, true); 3369 finishInputEvent(q, true); 3370 } else { 3371 finishInputEvent(q, false); 3372 } 3373 } 3374 3375 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3376 final long time = event.getEventTime(); 3377 final int metaState = event.getMetaState(); 3378 final int deviceId = event.getDeviceId(); 3379 final int source = event.getSource(); 3380 3381 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3382 if (xDirection == 0) { 3383 xDirection = joystickAxisValueToDirection(event.getX()); 3384 } 3385 3386 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3387 if (yDirection == 0) { 3388 yDirection = joystickAxisValueToDirection(event.getY()); 3389 } 3390 3391 if (xDirection != mLastJoystickXDirection) { 3392 if (mLastJoystickXKeyCode != 0) { 3393 enqueueInputEvent(new KeyEvent(time, time, 3394 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3395 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3396 mLastJoystickXKeyCode = 0; 3397 } 3398 3399 mLastJoystickXDirection = xDirection; 3400 3401 if (xDirection != 0 && synthesizeNewKeys) { 3402 mLastJoystickXKeyCode = xDirection > 0 3403 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3404 enqueueInputEvent(new KeyEvent(time, time, 3405 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3406 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3407 } 3408 } 3409 3410 if (yDirection != mLastJoystickYDirection) { 3411 if (mLastJoystickYKeyCode != 0) { 3412 enqueueInputEvent(new KeyEvent(time, time, 3413 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3414 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3415 mLastJoystickYKeyCode = 0; 3416 } 3417 3418 mLastJoystickYDirection = yDirection; 3419 3420 if (yDirection != 0 && synthesizeNewKeys) { 3421 mLastJoystickYKeyCode = yDirection > 0 3422 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3423 enqueueInputEvent(new KeyEvent(time, time, 3424 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3425 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3426 } 3427 } 3428 } 3429 3430 private static int joystickAxisValueToDirection(float value) { 3431 if (value >= 0.5f) { 3432 return 1; 3433 } else if (value <= -0.5f) { 3434 return -1; 3435 } else { 3436 return 0; 3437 } 3438 } 3439 3440 /** 3441 * Returns true if the key is used for keyboard navigation. 3442 * @param keyEvent The key event. 3443 * @return True if the key is used for keyboard navigation. 3444 */ 3445 private static boolean isNavigationKey(KeyEvent keyEvent) { 3446 switch (keyEvent.getKeyCode()) { 3447 case KeyEvent.KEYCODE_DPAD_LEFT: 3448 case KeyEvent.KEYCODE_DPAD_RIGHT: 3449 case KeyEvent.KEYCODE_DPAD_UP: 3450 case KeyEvent.KEYCODE_DPAD_DOWN: 3451 case KeyEvent.KEYCODE_DPAD_CENTER: 3452 case KeyEvent.KEYCODE_PAGE_UP: 3453 case KeyEvent.KEYCODE_PAGE_DOWN: 3454 case KeyEvent.KEYCODE_MOVE_HOME: 3455 case KeyEvent.KEYCODE_MOVE_END: 3456 case KeyEvent.KEYCODE_TAB: 3457 case KeyEvent.KEYCODE_SPACE: 3458 case KeyEvent.KEYCODE_ENTER: 3459 return true; 3460 } 3461 return false; 3462 } 3463 3464 /** 3465 * Returns true if the key is used for typing. 3466 * @param keyEvent The key event. 3467 * @return True if the key is used for typing. 3468 */ 3469 private static boolean isTypingKey(KeyEvent keyEvent) { 3470 return keyEvent.getUnicodeChar() > 0; 3471 } 3472 3473 /** 3474 * See if the key event means we should leave touch mode (and leave touch mode if so). 3475 * @param event The key event. 3476 * @return Whether this key event should be consumed (meaning the act of 3477 * leaving touch mode alone is considered the event). 3478 */ 3479 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3480 // Only relevant in touch mode. 3481 if (!mAttachInfo.mInTouchMode) { 3482 return false; 3483 } 3484 3485 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3486 final int action = event.getAction(); 3487 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3488 return false; 3489 } 3490 3491 // Don't leave touch mode if the IME told us not to. 3492 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3493 return false; 3494 } 3495 3496 // If the key can be used for keyboard navigation then leave touch mode 3497 // and select a focused view if needed (in ensureTouchMode). 3498 // When a new focused view is selected, we consume the navigation key because 3499 // navigation doesn't make much sense unless a view already has focus so 3500 // the key's purpose is to set focus. 3501 if (isNavigationKey(event)) { 3502 return ensureTouchMode(false); 3503 } 3504 3505 // If the key can be used for typing then leave touch mode 3506 // and select a focused view if needed (in ensureTouchMode). 3507 // Always allow the view to process the typing key. 3508 if (isTypingKey(event)) { 3509 ensureTouchMode(false); 3510 return false; 3511 } 3512 3513 return false; 3514 } 3515 3516 private void deliverKeyEvent(QueuedInputEvent q) { 3517 final KeyEvent event = (KeyEvent)q.mEvent; 3518 if (mInputEventConsistencyVerifier != null) { 3519 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3520 } 3521 3522 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3523 // If there is no view, then the event will not be handled. 3524 if (mView == null || !mAdded) { 3525 finishInputEvent(q, false); 3526 return; 3527 } 3528 3529 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3530 3531 // Perform predispatching before the IME. 3532 if (mView.dispatchKeyEventPreIme(event)) { 3533 finishInputEvent(q, true); 3534 return; 3535 } 3536 3537 // Dispatch to the IME before propagating down the view hierarchy. 3538 // The IME will eventually call back into handleImeFinishedEvent. 3539 if (mLastWasImTarget) { 3540 InputMethodManager imm = InputMethodManager.peekInstance(); 3541 if (imm != null) { 3542 final int seq = event.getSequenceNumber(); 3543 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3544 + seq + " event=" + event); 3545 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3546 return; 3547 } 3548 } 3549 } 3550 3551 // Not dispatching to IME, continue with post IME actions. 3552 deliverKeyEventPostIme(q); 3553 } 3554 3555 void handleImeFinishedEvent(int seq, boolean handled) { 3556 final QueuedInputEvent q = mCurrentInputEvent; 3557 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3558 final KeyEvent event = (KeyEvent)q.mEvent; 3559 if (DEBUG_IMF) { 3560 Log.v(TAG, "IME finished event: seq=" + seq 3561 + " handled=" + handled + " event=" + event); 3562 } 3563 if (handled) { 3564 finishInputEvent(q, true); 3565 } else { 3566 deliverKeyEventPostIme(q); 3567 } 3568 } else { 3569 if (DEBUG_IMF) { 3570 Log.v(TAG, "IME finished event: seq=" + seq 3571 + " handled=" + handled + ", event not found!"); 3572 } 3573 } 3574 } 3575 3576 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3577 final KeyEvent event = (KeyEvent)q.mEvent; 3578 if (ViewDebug.DEBUG_LATENCY) { 3579 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3580 } 3581 3582 // If the view went away, then the event will not be handled. 3583 if (mView == null || !mAdded) { 3584 finishInputEvent(q, false); 3585 return; 3586 } 3587 3588 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3589 if (checkForLeavingTouchModeAndConsume(event)) { 3590 finishInputEvent(q, true); 3591 return; 3592 } 3593 3594 // Make sure the fallback event policy sees all keys that will be delivered to the 3595 // view hierarchy. 3596 mFallbackEventHandler.preDispatchKeyEvent(event); 3597 3598 // Deliver the key to the view hierarchy. 3599 if (mView.dispatchKeyEvent(event)) { 3600 finishInputEvent(q, true); 3601 return; 3602 } 3603 3604 // If the Control modifier is held, try to interpret the key as a shortcut. 3605 if (event.getAction() == KeyEvent.ACTION_DOWN 3606 && event.isCtrlPressed() 3607 && event.getRepeatCount() == 0 3608 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3609 if (mView.dispatchKeyShortcutEvent(event)) { 3610 finishInputEvent(q, true); 3611 return; 3612 } 3613 } 3614 3615 // Apply the fallback event policy. 3616 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3617 finishInputEvent(q, true); 3618 return; 3619 } 3620 3621 // Handle automatic focus changes. 3622 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3623 int direction = 0; 3624 switch (event.getKeyCode()) { 3625 case KeyEvent.KEYCODE_DPAD_LEFT: 3626 if (event.hasNoModifiers()) { 3627 direction = View.FOCUS_LEFT; 3628 } 3629 break; 3630 case KeyEvent.KEYCODE_DPAD_RIGHT: 3631 if (event.hasNoModifiers()) { 3632 direction = View.FOCUS_RIGHT; 3633 } 3634 break; 3635 case KeyEvent.KEYCODE_DPAD_UP: 3636 if (event.hasNoModifiers()) { 3637 direction = View.FOCUS_UP; 3638 } 3639 break; 3640 case KeyEvent.KEYCODE_DPAD_DOWN: 3641 if (event.hasNoModifiers()) { 3642 direction = View.FOCUS_DOWN; 3643 } 3644 break; 3645 case KeyEvent.KEYCODE_TAB: 3646 if (event.hasNoModifiers()) { 3647 direction = View.FOCUS_FORWARD; 3648 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3649 direction = View.FOCUS_BACKWARD; 3650 } 3651 break; 3652 } 3653 if (direction != 0) { 3654 View focused = mView.findFocus(); 3655 if (focused != null) { 3656 View v = focused.focusSearch(direction); 3657 if (v != null && v != focused) { 3658 // do the math the get the interesting rect 3659 // of previous focused into the coord system of 3660 // newly focused view 3661 focused.getFocusedRect(mTempRect); 3662 if (mView instanceof ViewGroup) { 3663 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3664 focused, mTempRect); 3665 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3666 v, mTempRect); 3667 } 3668 if (v.requestFocus(direction, mTempRect)) { 3669 playSoundEffect(SoundEffectConstants 3670 .getContantForFocusDirection(direction)); 3671 finishInputEvent(q, true); 3672 return; 3673 } 3674 } 3675 3676 // Give the focused view a last chance to handle the dpad key. 3677 if (mView.dispatchUnhandledMove(focused, direction)) { 3678 finishInputEvent(q, true); 3679 return; 3680 } 3681 } 3682 } 3683 } 3684 3685 // Key was unhandled. 3686 finishInputEvent(q, false); 3687 } 3688 3689 /* drag/drop */ 3690 void setLocalDragState(Object obj) { 3691 mLocalDragState = obj; 3692 } 3693 3694 private void handleDragEvent(DragEvent event) { 3695 // From the root, only drag start/end/location are dispatched. entered/exited 3696 // are determined and dispatched by the viewgroup hierarchy, who then report 3697 // that back here for ultimate reporting back to the framework. 3698 if (mView != null && mAdded) { 3699 final int what = event.mAction; 3700 3701 if (what == DragEvent.ACTION_DRAG_EXITED) { 3702 // A direct EXITED event means that the window manager knows we've just crossed 3703 // a window boundary, so the current drag target within this one must have 3704 // just been exited. Send it the usual notifications and then we're done 3705 // for now. 3706 mView.dispatchDragEvent(event); 3707 } else { 3708 // Cache the drag description when the operation starts, then fill it in 3709 // on subsequent calls as a convenience 3710 if (what == DragEvent.ACTION_DRAG_STARTED) { 3711 mCurrentDragView = null; // Start the current-recipient tracking 3712 mDragDescription = event.mClipDescription; 3713 } else { 3714 event.mClipDescription = mDragDescription; 3715 } 3716 3717 // For events with a [screen] location, translate into window coordinates 3718 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3719 mDragPoint.set(event.mX, event.mY); 3720 if (mTranslator != null) { 3721 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3722 } 3723 3724 if (mCurScrollY != 0) { 3725 mDragPoint.offset(0, mCurScrollY); 3726 } 3727 3728 event.mX = mDragPoint.x; 3729 event.mY = mDragPoint.y; 3730 } 3731 3732 // Remember who the current drag target is pre-dispatch 3733 final View prevDragView = mCurrentDragView; 3734 3735 // Now dispatch the drag/drop event 3736 boolean result = mView.dispatchDragEvent(event); 3737 3738 // If we changed apparent drag target, tell the OS about it 3739 if (prevDragView != mCurrentDragView) { 3740 try { 3741 if (prevDragView != null) { 3742 sWindowSession.dragRecipientExited(mWindow); 3743 } 3744 if (mCurrentDragView != null) { 3745 sWindowSession.dragRecipientEntered(mWindow); 3746 } 3747 } catch (RemoteException e) { 3748 Slog.e(TAG, "Unable to note drag target change"); 3749 } 3750 } 3751 3752 // Report the drop result when we're done 3753 if (what == DragEvent.ACTION_DROP) { 3754 mDragDescription = null; 3755 try { 3756 Log.i(TAG, "Reporting drop result: " + result); 3757 sWindowSession.reportDropResult(mWindow, result); 3758 } catch (RemoteException e) { 3759 Log.e(TAG, "Unable to report drop result"); 3760 } 3761 } 3762 3763 // When the drag operation ends, release any local state object 3764 // that may have been in use 3765 if (what == DragEvent.ACTION_DRAG_ENDED) { 3766 setLocalDragState(null); 3767 } 3768 } 3769 } 3770 event.recycle(); 3771 } 3772 3773 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3774 if (mSeq != args.seq) { 3775 // The sequence has changed, so we need to update our value and make 3776 // sure to do a traversal afterward so the window manager is given our 3777 // most recent data. 3778 mSeq = args.seq; 3779 mAttachInfo.mForceReportNewAttributes = true; 3780 scheduleTraversals(); 3781 } 3782 if (mView == null) return; 3783 if (args.localChanges != 0) { 3784 if (mAttachInfo != null) { 3785 mAttachInfo.mRecomputeGlobalAttributes = true; 3786 } 3787 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3788 scheduleTraversals(); 3789 } 3790 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3791 } 3792 3793 public void handleDispatchDoneAnimating() { 3794 if (mWindowsAnimating) { 3795 mWindowsAnimating = false; 3796 if (!mDirty.isEmpty() || mIsAnimating) { 3797 scheduleTraversals(); 3798 } 3799 } 3800 } 3801 3802 public void getLastTouchPoint(Point outLocation) { 3803 outLocation.x = (int) mLastTouchPoint.x; 3804 outLocation.y = (int) mLastTouchPoint.y; 3805 } 3806 3807 public void setDragFocus(View newDragTarget) { 3808 if (mCurrentDragView != newDragTarget) { 3809 mCurrentDragView = newDragTarget; 3810 } 3811 } 3812 3813 private AudioManager getAudioManager() { 3814 if (mView == null) { 3815 throw new IllegalStateException("getAudioManager called when there is no mView"); 3816 } 3817 if (mAudioManager == null) { 3818 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3819 } 3820 return mAudioManager; 3821 } 3822 3823 public AccessibilityInteractionController getAccessibilityInteractionController() { 3824 if (mView == null) { 3825 throw new IllegalStateException("getAccessibilityInteractionController" 3826 + " called when there is no mView"); 3827 } 3828 if (mAccessibilityInteractionController == null) { 3829 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3830 } 3831 return mAccessibilityInteractionController; 3832 } 3833 3834 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3835 boolean insetsPending) throws RemoteException { 3836 3837 float appScale = mAttachInfo.mApplicationScale; 3838 boolean restore = false; 3839 if (params != null && mTranslator != null) { 3840 restore = true; 3841 params.backup(); 3842 mTranslator.translateWindowLayout(params); 3843 } 3844 if (params != null) { 3845 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3846 } 3847 mPendingConfiguration.seq = 0; 3848 //Log.d(TAG, ">>>>>> CALLING relayout"); 3849 if (params != null && mOrigWindowType != params.type) { 3850 // For compatibility with old apps, don't crash here. 3851 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3852 Slog.w(TAG, "Window type can not be changed after " 3853 + "the window is added; ignoring change of " + mView); 3854 params.type = mOrigWindowType; 3855 } 3856 } 3857 int relayoutResult = sWindowSession.relayout( 3858 mWindow, mSeq, params, 3859 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3860 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3861 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3862 mWinFrame, mPendingSystemInsets, mPendingContentInsets, mPendingVisibleInsets, 3863 mPendingConfiguration, mSurface); 3864 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3865 if (restore) { 3866 params.restore(); 3867 } 3868 3869 if (mTranslator != null) { 3870 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3871 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3872 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3873 } 3874 return relayoutResult; 3875 } 3876 3877 /** 3878 * {@inheritDoc} 3879 */ 3880 public void playSoundEffect(int effectId) { 3881 checkThread(); 3882 3883 try { 3884 final AudioManager audioManager = getAudioManager(); 3885 3886 switch (effectId) { 3887 case SoundEffectConstants.CLICK: 3888 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3889 return; 3890 case SoundEffectConstants.NAVIGATION_DOWN: 3891 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3892 return; 3893 case SoundEffectConstants.NAVIGATION_LEFT: 3894 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3895 return; 3896 case SoundEffectConstants.NAVIGATION_RIGHT: 3897 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3898 return; 3899 case SoundEffectConstants.NAVIGATION_UP: 3900 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3901 return; 3902 default: 3903 throw new IllegalArgumentException("unknown effect id " + effectId + 3904 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3905 } 3906 } catch (IllegalStateException e) { 3907 // Exception thrown by getAudioManager() when mView is null 3908 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3909 e.printStackTrace(); 3910 } 3911 } 3912 3913 /** 3914 * {@inheritDoc} 3915 */ 3916 public boolean performHapticFeedback(int effectId, boolean always) { 3917 try { 3918 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3919 } catch (RemoteException e) { 3920 return false; 3921 } 3922 } 3923 3924 /** 3925 * {@inheritDoc} 3926 */ 3927 public View focusSearch(View focused, int direction) { 3928 checkThread(); 3929 if (!(mView instanceof ViewGroup)) { 3930 return null; 3931 } 3932 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3933 } 3934 3935 public void debug() { 3936 mView.debug(); 3937 } 3938 3939 public void dumpGfxInfo(int[] info) { 3940 if (mView != null) { 3941 getGfxInfo(mView, info); 3942 } else { 3943 info[0] = info[1] = 0; 3944 } 3945 } 3946 3947 private static void getGfxInfo(View view, int[] info) { 3948 DisplayList displayList = view.mDisplayList; 3949 info[0]++; 3950 if (displayList != null) { 3951 info[1] += displayList.getSize(); 3952 } 3953 3954 if (view instanceof ViewGroup) { 3955 ViewGroup group = (ViewGroup) view; 3956 3957 int count = group.getChildCount(); 3958 for (int i = 0; i < count; i++) { 3959 getGfxInfo(group.getChildAt(i), info); 3960 } 3961 } 3962 } 3963 3964 public void die(boolean immediate) { 3965 if (immediate) { 3966 doDie(); 3967 } else { 3968 if (!mIsDrawing) { 3969 destroyHardwareRenderer(); 3970 } else { 3971 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 3972 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 3973 } 3974 mHandler.sendEmptyMessage(MSG_DIE); 3975 } 3976 } 3977 3978 void doDie() { 3979 checkThread(); 3980 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3981 synchronized (this) { 3982 if (mAdded) { 3983 dispatchDetachedFromWindow(); 3984 } 3985 3986 if (mAdded && !mFirst) { 3987 destroyHardwareRenderer(); 3988 3989 if (mView != null) { 3990 int viewVisibility = mView.getVisibility(); 3991 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 3992 if (mWindowAttributesChanged || viewVisibilityChanged) { 3993 // If layout params have been changed, first give them 3994 // to the window manager to make sure it has the correct 3995 // animation info. 3996 try { 3997 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 3998 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 3999 sWindowSession.finishDrawing(mWindow); 4000 } 4001 } catch (RemoteException e) { 4002 } 4003 } 4004 4005 mSurface.release(); 4006 } 4007 } 4008 4009 mAdded = false; 4010 } 4011 } 4012 4013 public void requestUpdateConfiguration(Configuration config) { 4014 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4015 mHandler.sendMessage(msg); 4016 } 4017 4018 private void destroyHardwareRenderer() { 4019 AttachInfo attachInfo = mAttachInfo; 4020 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4021 4022 if (hardwareRenderer != null) { 4023 if (mView != null) { 4024 hardwareRenderer.destroyHardwareResources(mView); 4025 } 4026 hardwareRenderer.destroy(true); 4027 hardwareRenderer.setRequested(false); 4028 4029 attachInfo.mHardwareRenderer = null; 4030 attachInfo.mHardwareAccelerated = false; 4031 } 4032 } 4033 4034 void dispatchImeFinishedEvent(int seq, boolean handled) { 4035 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4036 msg.arg1 = seq; 4037 msg.arg2 = handled ? 1 : 0; 4038 msg.setAsynchronous(true); 4039 mHandler.sendMessage(msg); 4040 } 4041 4042 public void dispatchFinishInputConnection(InputConnection connection) { 4043 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4044 mHandler.sendMessage(msg); 4045 } 4046 4047 public void dispatchResized(int w, int h, Rect systemInsets, Rect contentInsets, 4048 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4049 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4050 + " h=" + h + " systemInsets=" + systemInsets.toShortString() 4051 + " contentInsets=" + contentInsets.toShortString() 4052 + " visibleInsets=" + visibleInsets.toShortString() 4053 + " reportDraw=" + reportDraw); 4054 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4055 if (mTranslator != null) { 4056 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4057 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4058 w *= mTranslator.applicationInvertedScale; 4059 h *= mTranslator.applicationInvertedScale; 4060 } 4061 msg.arg1 = w; 4062 msg.arg2 = h; 4063 ResizedInfo ri = new ResizedInfo(); 4064 ri.systemInsets = new Rect(systemInsets); 4065 ri.contentInsets = new Rect(contentInsets); 4066 ri.visibleInsets = new Rect(visibleInsets); 4067 ri.newConfig = newConfig; 4068 msg.obj = ri; 4069 mHandler.sendMessage(msg); 4070 } 4071 4072 /** 4073 * Represents a pending input event that is waiting in a queue. 4074 * 4075 * Input events are processed in serial order by the timestamp specified by 4076 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4077 * one input event to the application at a time and waits for the application 4078 * to finish handling it before delivering the next one. 4079 * 4080 * However, because the application or IME can synthesize and inject multiple 4081 * key events at a time without going through the input dispatcher, we end up 4082 * needing a queue on the application's side. 4083 */ 4084 private static final class QueuedInputEvent { 4085 public static final int FLAG_DELIVER_POST_IME = 1; 4086 4087 public QueuedInputEvent mNext; 4088 4089 public InputEvent mEvent; 4090 public InputEventReceiver mReceiver; 4091 public int mFlags; 4092 4093 // Used for latency calculations. 4094 public long mReceiveTimeNanos; 4095 public long mDeliverTimeNanos; 4096 public long mDeliverPostImeTimeNanos; 4097 } 4098 4099 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4100 InputEventReceiver receiver, int flags) { 4101 QueuedInputEvent q = mQueuedInputEventPool; 4102 if (q != null) { 4103 mQueuedInputEventPoolSize -= 1; 4104 mQueuedInputEventPool = q.mNext; 4105 q.mNext = null; 4106 } else { 4107 q = new QueuedInputEvent(); 4108 } 4109 4110 q.mEvent = event; 4111 q.mReceiver = receiver; 4112 q.mFlags = flags; 4113 return q; 4114 } 4115 4116 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4117 q.mEvent = null; 4118 q.mReceiver = null; 4119 4120 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4121 mQueuedInputEventPoolSize += 1; 4122 q.mNext = mQueuedInputEventPool; 4123 mQueuedInputEventPool = q; 4124 } 4125 } 4126 4127 void enqueueInputEvent(InputEvent event) { 4128 enqueueInputEvent(event, null, 0, false); 4129 } 4130 4131 void enqueueInputEvent(InputEvent event, 4132 InputEventReceiver receiver, int flags, boolean processImmediately) { 4133 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4134 4135 if (ViewDebug.DEBUG_LATENCY) { 4136 q.mReceiveTimeNanos = System.nanoTime(); 4137 q.mDeliverTimeNanos = 0; 4138 q.mDeliverPostImeTimeNanos = 0; 4139 } 4140 4141 // Always enqueue the input event in order, regardless of its time stamp. 4142 // We do this because the application or the IME may inject key events 4143 // in response to touch events and we want to ensure that the injected keys 4144 // are processed in the order they were received and we cannot trust that 4145 // the time stamp of injected events are monotonic. 4146 QueuedInputEvent last = mFirstPendingInputEvent; 4147 if (last == null) { 4148 mFirstPendingInputEvent = q; 4149 } else { 4150 while (last.mNext != null) { 4151 last = last.mNext; 4152 } 4153 last.mNext = q; 4154 } 4155 4156 if (processImmediately) { 4157 doProcessInputEvents(); 4158 } else { 4159 scheduleProcessInputEvents(); 4160 } 4161 } 4162 4163 private void scheduleProcessInputEvents() { 4164 if (!mProcessInputEventsScheduled) { 4165 mProcessInputEventsScheduled = true; 4166 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4167 msg.setAsynchronous(true); 4168 mHandler.sendMessage(msg); 4169 } 4170 } 4171 4172 void doProcessInputEvents() { 4173 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4174 QueuedInputEvent q = mFirstPendingInputEvent; 4175 mFirstPendingInputEvent = q.mNext; 4176 q.mNext = null; 4177 mCurrentInputEvent = q; 4178 deliverInputEvent(q); 4179 } 4180 4181 // We are done processing all input events that we can process right now 4182 // so we can clear the pending flag immediately. 4183 if (mProcessInputEventsScheduled) { 4184 mProcessInputEventsScheduled = false; 4185 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4186 } 4187 } 4188 4189 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4190 if (q != mCurrentInputEvent) { 4191 throw new IllegalStateException("finished input event out of order"); 4192 } 4193 4194 if (ViewDebug.DEBUG_LATENCY) { 4195 final long now = System.nanoTime(); 4196 final long eventTime = q.mEvent.getEventTimeNano(); 4197 final StringBuilder msg = new StringBuilder(); 4198 msg.append("Spent "); 4199 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 4200 msg.append("ms processing "); 4201 if (q.mEvent instanceof KeyEvent) { 4202 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 4203 msg.append("key event, action="); 4204 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 4205 } else { 4206 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 4207 msg.append("motion event, action="); 4208 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 4209 msg.append(", historySize="); 4210 msg.append(motionEvent.getHistorySize()); 4211 } 4212 msg.append(", handled="); 4213 msg.append(handled); 4214 msg.append(", received at +"); 4215 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 4216 if (q.mDeliverTimeNanos != 0) { 4217 msg.append("ms, delivered at +"); 4218 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 4219 } 4220 if (q.mDeliverPostImeTimeNanos != 0) { 4221 msg.append("ms, delivered post IME at +"); 4222 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 4223 } 4224 msg.append("ms, finished at +"); 4225 msg.append((now - eventTime) * 0.000001f); 4226 msg.append("ms."); 4227 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 4228 } 4229 4230 if (q.mReceiver != null) { 4231 q.mReceiver.finishInputEvent(q.mEvent, handled); 4232 } else { 4233 q.mEvent.recycleIfNeededAfterDispatch(); 4234 } 4235 4236 recycleQueuedInputEvent(q); 4237 4238 mCurrentInputEvent = null; 4239 if (mFirstPendingInputEvent != null) { 4240 scheduleProcessInputEvents(); 4241 } 4242 } 4243 4244 void scheduleConsumeBatchedInput() { 4245 if (!mConsumeBatchedInputScheduled) { 4246 mConsumeBatchedInputScheduled = true; 4247 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4248 mConsumedBatchedInputRunnable, null); 4249 } 4250 } 4251 4252 void unscheduleConsumeBatchedInput() { 4253 if (mConsumeBatchedInputScheduled) { 4254 mConsumeBatchedInputScheduled = false; 4255 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4256 mConsumedBatchedInputRunnable, null); 4257 } 4258 } 4259 4260 void doConsumeBatchedInput(long frameTimeNanos) { 4261 if (mConsumeBatchedInputScheduled) { 4262 mConsumeBatchedInputScheduled = false; 4263 if (mInputEventReceiver != null) { 4264 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4265 } 4266 doProcessInputEvents(); 4267 } 4268 } 4269 4270 final class TraversalRunnable implements Runnable { 4271 @Override 4272 public void run() { 4273 doTraversal(); 4274 } 4275 } 4276 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4277 4278 final class WindowInputEventReceiver extends InputEventReceiver { 4279 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4280 super(inputChannel, looper); 4281 } 4282 4283 @Override 4284 public void onInputEvent(InputEvent event) { 4285 enqueueInputEvent(event, this, 0, true); 4286 } 4287 4288 @Override 4289 public void onBatchedInputEventPending() { 4290 scheduleConsumeBatchedInput(); 4291 } 4292 4293 @Override 4294 public void dispose() { 4295 unscheduleConsumeBatchedInput(); 4296 super.dispose(); 4297 } 4298 } 4299 WindowInputEventReceiver mInputEventReceiver; 4300 4301 final class ConsumeBatchedInputRunnable implements Runnable { 4302 @Override 4303 public void run() { 4304 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4305 } 4306 } 4307 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4308 new ConsumeBatchedInputRunnable(); 4309 boolean mConsumeBatchedInputScheduled; 4310 4311 final class InvalidateOnAnimationRunnable implements Runnable { 4312 private boolean mPosted; 4313 private ArrayList<View> mViews = new ArrayList<View>(); 4314 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4315 new ArrayList<AttachInfo.InvalidateInfo>(); 4316 private View[] mTempViews; 4317 private AttachInfo.InvalidateInfo[] mTempViewRects; 4318 4319 public void addView(View view) { 4320 synchronized (this) { 4321 mViews.add(view); 4322 postIfNeededLocked(); 4323 } 4324 } 4325 4326 public void addViewRect(AttachInfo.InvalidateInfo info) { 4327 synchronized (this) { 4328 mViewRects.add(info); 4329 postIfNeededLocked(); 4330 } 4331 } 4332 4333 public void removeView(View view) { 4334 synchronized (this) { 4335 mViews.remove(view); 4336 4337 for (int i = mViewRects.size(); i-- > 0; ) { 4338 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4339 if (info.target == view) { 4340 mViewRects.remove(i); 4341 info.release(); 4342 } 4343 } 4344 4345 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4346 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4347 mPosted = false; 4348 } 4349 } 4350 } 4351 4352 @Override 4353 public void run() { 4354 final int viewCount; 4355 final int viewRectCount; 4356 synchronized (this) { 4357 mPosted = false; 4358 4359 viewCount = mViews.size(); 4360 if (viewCount != 0) { 4361 mTempViews = mViews.toArray(mTempViews != null 4362 ? mTempViews : new View[viewCount]); 4363 mViews.clear(); 4364 } 4365 4366 viewRectCount = mViewRects.size(); 4367 if (viewRectCount != 0) { 4368 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4369 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4370 mViewRects.clear(); 4371 } 4372 } 4373 4374 for (int i = 0; i < viewCount; i++) { 4375 mTempViews[i].invalidate(); 4376 } 4377 4378 for (int i = 0; i < viewRectCount; i++) { 4379 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4380 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4381 info.release(); 4382 } 4383 } 4384 4385 private void postIfNeededLocked() { 4386 if (!mPosted) { 4387 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4388 mPosted = true; 4389 } 4390 } 4391 } 4392 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4393 new InvalidateOnAnimationRunnable(); 4394 4395 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4396 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4397 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4398 } 4399 4400 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4401 long delayMilliseconds) { 4402 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4403 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4404 } 4405 4406 public void dispatchInvalidateOnAnimation(View view) { 4407 mInvalidateOnAnimationRunnable.addView(view); 4408 } 4409 4410 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4411 mInvalidateOnAnimationRunnable.addViewRect(info); 4412 } 4413 4414 public void invalidateDisplayList(DisplayList displayList) { 4415 mDisplayLists.add(displayList); 4416 4417 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4418 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4419 mHandler.sendMessage(msg); 4420 } 4421 4422 public void cancelInvalidate(View view) { 4423 mHandler.removeMessages(MSG_INVALIDATE, view); 4424 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4425 // them to the pool 4426 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4427 mInvalidateOnAnimationRunnable.removeView(view); 4428 } 4429 4430 public void dispatchKey(KeyEvent event) { 4431 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4432 msg.setAsynchronous(true); 4433 mHandler.sendMessage(msg); 4434 } 4435 4436 public void dispatchKeyFromIme(KeyEvent event) { 4437 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4438 msg.setAsynchronous(true); 4439 mHandler.sendMessage(msg); 4440 } 4441 4442 public void dispatchUnhandledKey(KeyEvent event) { 4443 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4444 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4445 final int keyCode = event.getKeyCode(); 4446 final int metaState = event.getMetaState(); 4447 4448 KeyEvent fallbackEvent = null; 4449 synchronized (mFallbackAction) { 4450 // Check for fallback actions specified by the key character map. 4451 if (kcm.getFallbackAction(keyCode, metaState, mFallbackAction)) { 4452 int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4453 fallbackEvent = KeyEvent.obtain( 4454 event.getDownTime(), event.getEventTime(), 4455 event.getAction(), mFallbackAction.keyCode, 4456 event.getRepeatCount(), mFallbackAction.metaState, 4457 event.getDeviceId(), event.getScanCode(), 4458 flags, event.getSource(), null); 4459 } 4460 } 4461 if (fallbackEvent != null) { 4462 dispatchKey(fallbackEvent); 4463 } 4464 } 4465 } 4466 4467 public void dispatchAppVisibility(boolean visible) { 4468 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4469 msg.arg1 = visible ? 1 : 0; 4470 mHandler.sendMessage(msg); 4471 } 4472 4473 public void dispatchScreenStateChange(boolean on) { 4474 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4475 msg.arg1 = on ? 1 : 0; 4476 mHandler.sendMessage(msg); 4477 } 4478 4479 public void dispatchGetNewSurface() { 4480 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4481 mHandler.sendMessage(msg); 4482 } 4483 4484 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4485 Message msg = Message.obtain(); 4486 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4487 msg.arg1 = hasFocus ? 1 : 0; 4488 msg.arg2 = inTouchMode ? 1 : 0; 4489 mHandler.sendMessage(msg); 4490 } 4491 4492 public void dispatchCloseSystemDialogs(String reason) { 4493 Message msg = Message.obtain(); 4494 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4495 msg.obj = reason; 4496 mHandler.sendMessage(msg); 4497 } 4498 4499 public void dispatchDragEvent(DragEvent event) { 4500 final int what; 4501 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4502 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4503 mHandler.removeMessages(what); 4504 } else { 4505 what = MSG_DISPATCH_DRAG_EVENT; 4506 } 4507 Message msg = mHandler.obtainMessage(what, event); 4508 mHandler.sendMessage(msg); 4509 } 4510 4511 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4512 int localValue, int localChanges) { 4513 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4514 args.seq = seq; 4515 args.globalVisibility = globalVisibility; 4516 args.localValue = localValue; 4517 args.localChanges = localChanges; 4518 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4519 } 4520 4521 public void dispatchDoneAnimating() { 4522 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4523 } 4524 4525 public void dispatchCheckFocus() { 4526 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4527 // This will result in a call to checkFocus() below. 4528 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4529 } 4530 } 4531 4532 /** 4533 * Post a callback to send a 4534 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4535 * This event is send at most once every 4536 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4537 */ 4538 private void postSendWindowContentChangedCallback(View source) { 4539 if (mSendWindowContentChangedAccessibilityEvent == null) { 4540 mSendWindowContentChangedAccessibilityEvent = 4541 new SendWindowContentChangedAccessibilityEvent(); 4542 } 4543 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4544 if (oldSource == null) { 4545 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4546 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4547 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4548 } else { 4549 mSendWindowContentChangedAccessibilityEvent.mSource = 4550 getCommonPredecessor(oldSource, source); 4551 } 4552 } 4553 4554 /** 4555 * Remove a posted callback to send a 4556 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4557 */ 4558 private void removeSendWindowContentChangedCallback() { 4559 if (mSendWindowContentChangedAccessibilityEvent != null) { 4560 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4561 } 4562 } 4563 4564 public boolean showContextMenuForChild(View originalView) { 4565 return false; 4566 } 4567 4568 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4569 return null; 4570 } 4571 4572 public void createContextMenu(ContextMenu menu) { 4573 } 4574 4575 public void childDrawableStateChanged(View child) { 4576 } 4577 4578 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4579 if (mView == null) { 4580 return false; 4581 } 4582 mAccessibilityManager.sendAccessibilityEvent(event); 4583 return true; 4584 } 4585 4586 @Override 4587 public void childAccessibilityStateChanged(View child) { 4588 postSendWindowContentChangedCallback(child); 4589 } 4590 4591 private View getCommonPredecessor(View first, View second) { 4592 if (mAttachInfo != null) { 4593 if (mTempHashSet == null) { 4594 mTempHashSet = new HashSet<View>(); 4595 } 4596 HashSet<View> seen = mTempHashSet; 4597 seen.clear(); 4598 View firstCurrent = first; 4599 while (firstCurrent != null) { 4600 seen.add(firstCurrent); 4601 ViewParent firstCurrentParent = firstCurrent.mParent; 4602 if (firstCurrentParent instanceof View) { 4603 firstCurrent = (View) firstCurrentParent; 4604 } else { 4605 firstCurrent = null; 4606 } 4607 } 4608 View secondCurrent = second; 4609 while (secondCurrent != null) { 4610 if (seen.contains(secondCurrent)) { 4611 seen.clear(); 4612 return secondCurrent; 4613 } 4614 ViewParent secondCurrentParent = secondCurrent.mParent; 4615 if (secondCurrentParent instanceof View) { 4616 secondCurrent = (View) secondCurrentParent; 4617 } else { 4618 secondCurrent = null; 4619 } 4620 } 4621 seen.clear(); 4622 } 4623 return null; 4624 } 4625 4626 void checkThread() { 4627 if (mThread != Thread.currentThread()) { 4628 throw new CalledFromWrongThreadException( 4629 "Only the original thread that created a view hierarchy can touch its views."); 4630 } 4631 } 4632 4633 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4634 // ViewAncestor never intercepts touch event, so this can be a no-op 4635 } 4636 4637 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4638 boolean immediate) { 4639 return scrollToRectOrFocus(rectangle, immediate); 4640 } 4641 4642 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4643 // Do nothing. 4644 } 4645 4646 class TakenSurfaceHolder extends BaseSurfaceHolder { 4647 @Override 4648 public boolean onAllowLockCanvas() { 4649 return mDrawingAllowed; 4650 } 4651 4652 @Override 4653 public void onRelayoutContainer() { 4654 // Not currently interesting -- from changing between fixed and layout size. 4655 } 4656 4657 public void setFormat(int format) { 4658 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4659 } 4660 4661 public void setType(int type) { 4662 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4663 } 4664 4665 @Override 4666 public void onUpdateSurface() { 4667 // We take care of format and type changes on our own. 4668 throw new IllegalStateException("Shouldn't be here"); 4669 } 4670 4671 public boolean isCreating() { 4672 return mIsCreating; 4673 } 4674 4675 @Override 4676 public void setFixedSize(int width, int height) { 4677 throw new UnsupportedOperationException( 4678 "Currently only support sizing from layout"); 4679 } 4680 4681 public void setKeepScreenOn(boolean screenOn) { 4682 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4683 } 4684 } 4685 4686 static class InputMethodCallback extends IInputMethodCallback.Stub { 4687 private WeakReference<ViewRootImpl> mViewAncestor; 4688 4689 public InputMethodCallback(ViewRootImpl viewAncestor) { 4690 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4691 } 4692 4693 public void finishedEvent(int seq, boolean handled) { 4694 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4695 if (viewAncestor != null) { 4696 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4697 } 4698 } 4699 4700 public void sessionCreated(IInputMethodSession session) { 4701 // Stub -- not for use in the client. 4702 } 4703 } 4704 4705 static class W extends IWindow.Stub { 4706 private final WeakReference<ViewRootImpl> mViewAncestor; 4707 4708 W(ViewRootImpl viewAncestor) { 4709 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4710 } 4711 4712 public void resized(int w, int h, Rect systemInsets, Rect contentInsets, 4713 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4714 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4715 if (viewAncestor != null) { 4716 viewAncestor.dispatchResized(w, h, systemInsets, contentInsets, 4717 visibleInsets, reportDraw, newConfig); 4718 } 4719 } 4720 4721 public void dispatchAppVisibility(boolean visible) { 4722 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4723 if (viewAncestor != null) { 4724 viewAncestor.dispatchAppVisibility(visible); 4725 } 4726 } 4727 4728 public void dispatchScreenState(boolean on) { 4729 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4730 if (viewAncestor != null) { 4731 viewAncestor.dispatchScreenStateChange(on); 4732 } 4733 } 4734 4735 public void dispatchGetNewSurface() { 4736 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4737 if (viewAncestor != null) { 4738 viewAncestor.dispatchGetNewSurface(); 4739 } 4740 } 4741 4742 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4743 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4744 if (viewAncestor != null) { 4745 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4746 } 4747 } 4748 4749 private static int checkCallingPermission(String permission) { 4750 try { 4751 return ActivityManagerNative.getDefault().checkPermission( 4752 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4753 } catch (RemoteException e) { 4754 return PackageManager.PERMISSION_DENIED; 4755 } 4756 } 4757 4758 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4759 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4760 if (viewAncestor != null) { 4761 final View view = viewAncestor.mView; 4762 if (view != null) { 4763 if (checkCallingPermission(Manifest.permission.DUMP) != 4764 PackageManager.PERMISSION_GRANTED) { 4765 throw new SecurityException("Insufficient permissions to invoke" 4766 + " executeCommand() from pid=" + Binder.getCallingPid() 4767 + ", uid=" + Binder.getCallingUid()); 4768 } 4769 4770 OutputStream clientStream = null; 4771 try { 4772 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4773 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4774 } catch (IOException e) { 4775 e.printStackTrace(); 4776 } finally { 4777 if (clientStream != null) { 4778 try { 4779 clientStream.close(); 4780 } catch (IOException e) { 4781 e.printStackTrace(); 4782 } 4783 } 4784 } 4785 } 4786 } 4787 } 4788 4789 public void closeSystemDialogs(String reason) { 4790 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4791 if (viewAncestor != null) { 4792 viewAncestor.dispatchCloseSystemDialogs(reason); 4793 } 4794 } 4795 4796 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4797 boolean sync) { 4798 if (sync) { 4799 try { 4800 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4801 } catch (RemoteException e) { 4802 } 4803 } 4804 } 4805 4806 public void dispatchWallpaperCommand(String action, int x, int y, 4807 int z, Bundle extras, boolean sync) { 4808 if (sync) { 4809 try { 4810 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4811 } catch (RemoteException e) { 4812 } 4813 } 4814 } 4815 4816 /* Drag/drop */ 4817 public void dispatchDragEvent(DragEvent event) { 4818 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4819 if (viewAncestor != null) { 4820 viewAncestor.dispatchDragEvent(event); 4821 } 4822 } 4823 4824 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4825 int localValue, int localChanges) { 4826 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4827 if (viewAncestor != null) { 4828 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4829 localValue, localChanges); 4830 } 4831 } 4832 4833 public void doneAnimating() { 4834 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4835 if (viewAncestor != null) { 4836 viewAncestor.dispatchDoneAnimating(); 4837 } 4838 } 4839 } 4840 4841 /** 4842 * Maintains state information for a single trackball axis, generating 4843 * discrete (DPAD) movements based on raw trackball motion. 4844 */ 4845 static final class TrackballAxis { 4846 /** 4847 * The maximum amount of acceleration we will apply. 4848 */ 4849 static final float MAX_ACCELERATION = 20; 4850 4851 /** 4852 * The maximum amount of time (in milliseconds) between events in order 4853 * for us to consider the user to be doing fast trackball movements, 4854 * and thus apply an acceleration. 4855 */ 4856 static final long FAST_MOVE_TIME = 150; 4857 4858 /** 4859 * Scaling factor to the time (in milliseconds) between events to how 4860 * much to multiple/divide the current acceleration. When movement 4861 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4862 * FAST_MOVE_TIME it divides it. 4863 */ 4864 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4865 4866 float position; 4867 float absPosition; 4868 float acceleration = 1; 4869 long lastMoveTime = 0; 4870 int step; 4871 int dir; 4872 int nonAccelMovement; 4873 4874 void reset(int _step) { 4875 position = 0; 4876 acceleration = 1; 4877 lastMoveTime = 0; 4878 step = _step; 4879 dir = 0; 4880 } 4881 4882 /** 4883 * Add trackball movement into the state. If the direction of movement 4884 * has been reversed, the state is reset before adding the 4885 * movement (so that you don't have to compensate for any previously 4886 * collected movement before see the result of the movement in the 4887 * new direction). 4888 * 4889 * @return Returns the absolute value of the amount of movement 4890 * collected so far. 4891 */ 4892 float collect(float off, long time, String axis) { 4893 long normTime; 4894 if (off > 0) { 4895 normTime = (long)(off * FAST_MOVE_TIME); 4896 if (dir < 0) { 4897 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4898 position = 0; 4899 step = 0; 4900 acceleration = 1; 4901 lastMoveTime = 0; 4902 } 4903 dir = 1; 4904 } else if (off < 0) { 4905 normTime = (long)((-off) * FAST_MOVE_TIME); 4906 if (dir > 0) { 4907 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4908 position = 0; 4909 step = 0; 4910 acceleration = 1; 4911 lastMoveTime = 0; 4912 } 4913 dir = -1; 4914 } else { 4915 normTime = 0; 4916 } 4917 4918 // The number of milliseconds between each movement that is 4919 // considered "normal" and will not result in any acceleration 4920 // or deceleration, scaled by the offset we have here. 4921 if (normTime > 0) { 4922 long delta = time - lastMoveTime; 4923 lastMoveTime = time; 4924 float acc = acceleration; 4925 if (delta < normTime) { 4926 // The user is scrolling rapidly, so increase acceleration. 4927 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4928 if (scale > 1) acc *= scale; 4929 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4930 + off + " normTime=" + normTime + " delta=" + delta 4931 + " scale=" + scale + " acc=" + acc); 4932 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4933 } else { 4934 // The user is scrolling slowly, so decrease acceleration. 4935 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4936 if (scale > 1) acc /= scale; 4937 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4938 + off + " normTime=" + normTime + " delta=" + delta 4939 + " scale=" + scale + " acc=" + acc); 4940 acceleration = acc > 1 ? acc : 1; 4941 } 4942 } 4943 position += off; 4944 return (absPosition = Math.abs(position)); 4945 } 4946 4947 /** 4948 * Generate the number of discrete movement events appropriate for 4949 * the currently collected trackball movement. 4950 * 4951 * @param precision The minimum movement required to generate the 4952 * first discrete movement. 4953 * 4954 * @return Returns the number of discrete movements, either positive 4955 * or negative, or 0 if there is not enough trackball movement yet 4956 * for a discrete movement. 4957 */ 4958 int generate(float precision) { 4959 int movement = 0; 4960 nonAccelMovement = 0; 4961 do { 4962 final int dir = position >= 0 ? 1 : -1; 4963 switch (step) { 4964 // If we are going to execute the first step, then we want 4965 // to do this as soon as possible instead of waiting for 4966 // a full movement, in order to make things look responsive. 4967 case 0: 4968 if (absPosition < precision) { 4969 return movement; 4970 } 4971 movement += dir; 4972 nonAccelMovement += dir; 4973 step = 1; 4974 break; 4975 // If we have generated the first movement, then we need 4976 // to wait for the second complete trackball motion before 4977 // generating the second discrete movement. 4978 case 1: 4979 if (absPosition < 2) { 4980 return movement; 4981 } 4982 movement += dir; 4983 nonAccelMovement += dir; 4984 position += dir > 0 ? -2 : 2; 4985 absPosition = Math.abs(position); 4986 step = 2; 4987 break; 4988 // After the first two, we generate discrete movements 4989 // consistently with the trackball, applying an acceleration 4990 // if the trackball is moving quickly. This is a simple 4991 // acceleration on top of what we already compute based 4992 // on how quickly the wheel is being turned, to apply 4993 // a longer increasing acceleration to continuous movement 4994 // in one direction. 4995 default: 4996 if (absPosition < 1) { 4997 return movement; 4998 } 4999 movement += dir; 5000 position += dir >= 0 ? -1 : 1; 5001 absPosition = Math.abs(position); 5002 float acc = acceleration; 5003 acc *= 1.1f; 5004 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5005 break; 5006 } 5007 } while (true); 5008 } 5009 } 5010 5011 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5012 public CalledFromWrongThreadException(String msg) { 5013 super(msg); 5014 } 5015 } 5016 5017 private SurfaceHolder mHolder = new SurfaceHolder() { 5018 // we only need a SurfaceHolder for opengl. it would be nice 5019 // to implement everything else though, especially the callback 5020 // support (opengl doesn't make use of it right now, but eventually 5021 // will). 5022 public Surface getSurface() { 5023 return mSurface; 5024 } 5025 5026 public boolean isCreating() { 5027 return false; 5028 } 5029 5030 public void addCallback(Callback callback) { 5031 } 5032 5033 public void removeCallback(Callback callback) { 5034 } 5035 5036 public void setFixedSize(int width, int height) { 5037 } 5038 5039 public void setSizeFromLayout() { 5040 } 5041 5042 public void setFormat(int format) { 5043 } 5044 5045 public void setType(int type) { 5046 } 5047 5048 public void setKeepScreenOn(boolean screenOn) { 5049 } 5050 5051 public Canvas lockCanvas() { 5052 return null; 5053 } 5054 5055 public Canvas lockCanvas(Rect dirty) { 5056 return null; 5057 } 5058 5059 public void unlockCanvasAndPost(Canvas canvas) { 5060 } 5061 public Rect getSurfaceFrame() { 5062 return null; 5063 } 5064 }; 5065 5066 static RunQueue getRunQueue() { 5067 RunQueue rq = sRunQueues.get(); 5068 if (rq != null) { 5069 return rq; 5070 } 5071 rq = new RunQueue(); 5072 sRunQueues.set(rq); 5073 return rq; 5074 } 5075 5076 /** 5077 * The run queue is used to enqueue pending work from Views when no Handler is 5078 * attached. The work is executed during the next call to performTraversals on 5079 * the thread. 5080 * @hide 5081 */ 5082 static final class RunQueue { 5083 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5084 5085 void post(Runnable action) { 5086 postDelayed(action, 0); 5087 } 5088 5089 void postDelayed(Runnable action, long delayMillis) { 5090 HandlerAction handlerAction = new HandlerAction(); 5091 handlerAction.action = action; 5092 handlerAction.delay = delayMillis; 5093 5094 synchronized (mActions) { 5095 mActions.add(handlerAction); 5096 } 5097 } 5098 5099 void removeCallbacks(Runnable action) { 5100 final HandlerAction handlerAction = new HandlerAction(); 5101 handlerAction.action = action; 5102 5103 synchronized (mActions) { 5104 final ArrayList<HandlerAction> actions = mActions; 5105 5106 while (actions.remove(handlerAction)) { 5107 // Keep going 5108 } 5109 } 5110 } 5111 5112 void executeActions(Handler handler) { 5113 synchronized (mActions) { 5114 final ArrayList<HandlerAction> actions = mActions; 5115 final int count = actions.size(); 5116 5117 for (int i = 0; i < count; i++) { 5118 final HandlerAction handlerAction = actions.get(i); 5119 handler.postDelayed(handlerAction.action, handlerAction.delay); 5120 } 5121 5122 actions.clear(); 5123 } 5124 } 5125 5126 private static class HandlerAction { 5127 Runnable action; 5128 long delay; 5129 5130 @Override 5131 public boolean equals(Object o) { 5132 if (this == o) return true; 5133 if (o == null || getClass() != o.getClass()) return false; 5134 5135 HandlerAction that = (HandlerAction) o; 5136 return !(action != null ? !action.equals(that.action) : that.action != null); 5137 5138 } 5139 5140 @Override 5141 public int hashCode() { 5142 int result = action != null ? action.hashCode() : 0; 5143 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5144 return result; 5145 } 5146 } 5147 } 5148 5149 /** 5150 * Class for managing the accessibility interaction connection 5151 * based on the global accessibility state. 5152 */ 5153 final class AccessibilityInteractionConnectionManager 5154 implements AccessibilityStateChangeListener { 5155 public void onAccessibilityStateChanged(boolean enabled) { 5156 if (enabled) { 5157 ensureConnection(); 5158 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5159 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5160 View focusedView = mView.findFocus(); 5161 if (focusedView != null && focusedView != mView) { 5162 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5163 } 5164 } 5165 } else { 5166 ensureNoConnection(); 5167 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5168 } 5169 } 5170 5171 public void ensureConnection() { 5172 if (mAttachInfo != null) { 5173 final boolean registered = 5174 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5175 if (!registered) { 5176 mAttachInfo.mAccessibilityWindowId = 5177 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5178 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5179 } 5180 } 5181 } 5182 5183 public void ensureNoConnection() { 5184 final boolean registered = 5185 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5186 if (registered) { 5187 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5188 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5189 } 5190 } 5191 } 5192 5193 /** 5194 * This class is an interface this ViewAncestor provides to the 5195 * AccessibilityManagerService to the latter can interact with 5196 * the view hierarchy in this ViewAncestor. 5197 */ 5198 static final class AccessibilityInteractionConnection 5199 extends IAccessibilityInteractionConnection.Stub { 5200 private final WeakReference<ViewRootImpl> mViewRootImpl; 5201 5202 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5203 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5204 } 5205 5206 @Override 5207 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5208 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5209 int flags, int interrogatingPid, long interrogatingTid) { 5210 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5211 if (viewRootImpl != null && viewRootImpl.mView != null) { 5212 viewRootImpl.getAccessibilityInteractionController() 5213 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5214 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5215 } else { 5216 // We cannot make the call and notify the caller so it does not wait. 5217 try { 5218 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5219 } catch (RemoteException re) { 5220 /* best effort - ignore */ 5221 } 5222 } 5223 } 5224 5225 @Override 5226 public void performAccessibilityAction(long accessibilityNodeId, int action, 5227 Bundle arguments, int interactionId, 5228 IAccessibilityInteractionConnectionCallback callback, int flags, 5229 int interogatingPid, long interrogatingTid) { 5230 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5231 if (viewRootImpl != null && viewRootImpl.mView != null) { 5232 viewRootImpl.getAccessibilityInteractionController() 5233 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5234 interactionId, callback, flags, interogatingPid, interrogatingTid); 5235 } else { 5236 // We cannot make the call and notify the caller so it does not wait. 5237 try { 5238 callback.setPerformAccessibilityActionResult(false, interactionId); 5239 } catch (RemoteException re) { 5240 /* best effort - ignore */ 5241 } 5242 } 5243 } 5244 5245 @Override 5246 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5247 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5248 int flags, int interrogatingPid, long interrogatingTid) { 5249 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5250 if (viewRootImpl != null && viewRootImpl.mView != null) { 5251 viewRootImpl.getAccessibilityInteractionController() 5252 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5253 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5254 } else { 5255 // We cannot make the call and notify the caller so it does not wait. 5256 try { 5257 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5258 } catch (RemoteException re) { 5259 /* best effort - ignore */ 5260 } 5261 } 5262 } 5263 5264 @Override 5265 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5266 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5267 int flags, int interrogatingPid, long interrogatingTid) { 5268 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5269 if (viewRootImpl != null && viewRootImpl.mView != null) { 5270 viewRootImpl.getAccessibilityInteractionController() 5271 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5272 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5273 } else { 5274 // We cannot make the call and notify the caller so it does not wait. 5275 try { 5276 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5277 } catch (RemoteException re) { 5278 /* best effort - ignore */ 5279 } 5280 } 5281 } 5282 5283 @Override 5284 public void findFocus(long accessibilityNodeId, int interactionId, int focusType, 5285 IAccessibilityInteractionConnectionCallback callback, int flags, 5286 int interrogatingPid, long interrogatingTid) { 5287 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5288 if (viewRootImpl != null && viewRootImpl.mView != null) { 5289 viewRootImpl.getAccessibilityInteractionController() 5290 .findFocusClientThread(accessibilityNodeId, interactionId, focusType, 5291 callback, flags, interrogatingPid, interrogatingTid); 5292 } else { 5293 // We cannot make the call and notify the caller so it does not wait. 5294 try { 5295 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5296 } catch (RemoteException re) { 5297 /* best effort - ignore */ 5298 } 5299 } 5300 } 5301 5302 @Override 5303 public void focusSearch(long accessibilityNodeId, int interactionId, int direction, 5304 IAccessibilityInteractionConnectionCallback callback, int flags, 5305 int interrogatingPid, long interrogatingTid) { 5306 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5307 if (viewRootImpl != null && viewRootImpl.mView != null) { 5308 viewRootImpl.getAccessibilityInteractionController() 5309 .focusSearchClientThread(accessibilityNodeId, interactionId, direction, 5310 callback, flags, interrogatingPid, interrogatingTid); 5311 } else { 5312 // We cannot make the call and notify the caller so it does not wait. 5313 try { 5314 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5315 } catch (RemoteException re) { 5316 /* best effort - ignore */ 5317 } 5318 } 5319 } 5320 } 5321 5322 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5323 public View mSource; 5324 5325 public void run() { 5326 if (mSource != null) { 5327 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5328 mSource.resetAccessibilityStateChanged(); 5329 mSource = null; 5330 } 5331 } 5332 } 5333} 5334