ViewRootImpl.java revision a53de0629f3b94472c0f160f5bbe1090b020feab
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 loadSystemProperties(); 412 } 413 414 /** 415 * @return True if the application requests the use of a separate render thread, 416 * false otherwise 417 */ 418 private static boolean isRenderThreadRequested(Context context) { 419 if (USE_RENDER_THREAD) { 420 synchronized (sRenderThreadQueryLock) { 421 if (!sRenderThreadQueried) { 422 final PackageManager packageManager = context.getPackageManager(); 423 final String packageName = context.getApplicationInfo().packageName; 424 try { 425 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 426 PackageManager.GET_META_DATA); 427 if (applicationInfo.metaData != null) { 428 sUseRenderThread = applicationInfo.metaData.getBoolean( 429 "android.graphics.renderThread", false); 430 } 431 } catch (PackageManager.NameNotFoundException e) { 432 } finally { 433 sRenderThreadQueried = true; 434 } 435 } 436 return sUseRenderThread; 437 } 438 } else { 439 return false; 440 } 441 } 442 443 public static void addFirstDrawHandler(Runnable callback) { 444 synchronized (sFirstDrawHandlers) { 445 if (!sFirstDrawComplete) { 446 sFirstDrawHandlers.add(callback); 447 } 448 } 449 } 450 451 public static void addConfigCallback(ComponentCallbacks callback) { 452 synchronized (sConfigCallbacks) { 453 sConfigCallbacks.add(callback); 454 } 455 } 456 457 // FIXME for perf testing only 458 private boolean mProfile = false; 459 460 /** 461 * Call this to profile the next traversal call. 462 * FIXME for perf testing only. Remove eventually 463 */ 464 public void profile() { 465 mProfile = true; 466 } 467 468 /** 469 * Indicates whether we are in touch mode. Calling this method triggers an IPC 470 * call and should be avoided whenever possible. 471 * 472 * @return True, if the device is in touch mode, false otherwise. 473 * 474 * @hide 475 */ 476 static boolean isInTouchMode() { 477 if (mInitialized) { 478 try { 479 return sWindowSession.getInTouchMode(); 480 } catch (RemoteException e) { 481 } 482 } 483 return false; 484 } 485 486 /** 487 * We have one child 488 */ 489 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 490 synchronized (this) { 491 if (mView == null) { 492 mView = view; 493 mFallbackEventHandler.setView(view); 494 mWindowAttributes.copyFrom(attrs); 495 attrs = mWindowAttributes; 496 497 if (view instanceof RootViewSurfaceTaker) { 498 mSurfaceHolderCallback = 499 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 500 if (mSurfaceHolderCallback != null) { 501 mSurfaceHolder = new TakenSurfaceHolder(); 502 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 503 } 504 } 505 506 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 507 mTranslator = compatibilityInfo.getTranslator(); 508 509 // If the application owns the surface, don't enable hardware acceleration 510 if (mSurfaceHolder == null) { 511 enableHardwareAcceleration(mView.getContext(), attrs); 512 } 513 514 boolean restore = false; 515 if (mTranslator != null) { 516 mSurface.setCompatibilityTranslator(mTranslator); 517 restore = true; 518 attrs.backup(); 519 mTranslator.translateWindowLayout(attrs); 520 } 521 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 522 523 if (!compatibilityInfo.supportsScreen()) { 524 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 525 mLastInCompatMode = true; 526 } 527 528 mSoftInputMode = attrs.softInputMode; 529 mWindowAttributesChanged = true; 530 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 531 mAttachInfo.mRootView = view; 532 mAttachInfo.mScalingRequired = mTranslator != null; 533 mAttachInfo.mApplicationScale = 534 mTranslator == null ? 1.0f : mTranslator.applicationScale; 535 if (panelParentView != null) { 536 mAttachInfo.mPanelParentWindowToken 537 = panelParentView.getApplicationWindowToken(); 538 } 539 mAdded = true; 540 int res; /* = WindowManagerImpl.ADD_OKAY; */ 541 542 // Schedule the first layout -before- adding to the window 543 // manager, to make sure we do the relayout before receiving 544 // any other events from the system. 545 requestLayout(); 546 if ((mWindowAttributes.inputFeatures 547 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 548 mInputChannel = new InputChannel(); 549 } 550 try { 551 mOrigWindowType = mWindowAttributes.type; 552 mAttachInfo.mRecomputeGlobalAttributes = true; 553 collectViewAttributes(); 554 res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, 555 getHostVisibility(), mAttachInfo.mContentInsets, 556 mInputChannel); 557 } catch (RemoteException e) { 558 mAdded = false; 559 mView = null; 560 mAttachInfo.mRootView = null; 561 mInputChannel = null; 562 mFallbackEventHandler.setView(null); 563 unscheduleTraversals(); 564 throw new RuntimeException("Adding window failed", e); 565 } finally { 566 if (restore) { 567 attrs.restore(); 568 } 569 } 570 571 if (mTranslator != null) { 572 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 573 } 574 mPendingSystemInsets.set(0, 0, 0, 0); 575 mPendingContentInsets.set(mAttachInfo.mContentInsets); 576 mPendingVisibleInsets.set(0, 0, 0, 0); 577 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 578 if (res < WindowManagerImpl.ADD_OKAY) { 579 mView = null; 580 mAttachInfo.mRootView = null; 581 mAdded = false; 582 mFallbackEventHandler.setView(null); 583 unscheduleTraversals(); 584 switch (res) { 585 case WindowManagerImpl.ADD_BAD_APP_TOKEN: 586 case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN: 587 throw new WindowManagerImpl.BadTokenException( 588 "Unable to add window -- token " + attrs.token 589 + " is not valid; is your activity running?"); 590 case WindowManagerImpl.ADD_NOT_APP_TOKEN: 591 throw new WindowManagerImpl.BadTokenException( 592 "Unable to add window -- token " + attrs.token 593 + " is not for an application"); 594 case WindowManagerImpl.ADD_APP_EXITING: 595 throw new WindowManagerImpl.BadTokenException( 596 "Unable to add window -- app for token " + attrs.token 597 + " is exiting"); 598 case WindowManagerImpl.ADD_DUPLICATE_ADD: 599 throw new WindowManagerImpl.BadTokenException( 600 "Unable to add window -- window " + mWindow 601 + " has already been added"); 602 case WindowManagerImpl.ADD_STARTING_NOT_NEEDED: 603 // Silently ignore -- we would have just removed it 604 // right away, anyway. 605 return; 606 case WindowManagerImpl.ADD_MULTIPLE_SINGLETON: 607 throw new WindowManagerImpl.BadTokenException( 608 "Unable to add window " + mWindow + 609 " -- another window of this type already exists"); 610 case WindowManagerImpl.ADD_PERMISSION_DENIED: 611 throw new WindowManagerImpl.BadTokenException( 612 "Unable to add window " + mWindow + 613 " -- permission denied for this window type"); 614 } 615 throw new RuntimeException( 616 "Unable to add window -- unknown error code " + res); 617 } 618 619 if (view instanceof RootViewSurfaceTaker) { 620 mInputQueueCallback = 621 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 622 } 623 if (mInputChannel != null) { 624 if (mInputQueueCallback != null) { 625 mInputQueue = new InputQueue(mInputChannel); 626 mInputQueueCallback.onInputQueueCreated(mInputQueue); 627 } else { 628 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 629 Looper.myLooper()); 630 } 631 } 632 633 view.assignParent(this); 634 mAddedTouchMode = (res&WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0; 635 mAppVisible = (res&WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0; 636 637 if (mAccessibilityManager.isEnabled()) { 638 mAccessibilityInteractionConnectionManager.ensureConnection(); 639 } 640 641 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 642 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 643 } 644 645 setAccessibilityFocusedHost(null); 646 } 647 } 648 } 649 650 void destroyHardwareResources() { 651 if (mAttachInfo.mHardwareRenderer != null) { 652 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 653 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 654 } 655 mAttachInfo.mHardwareRenderer.destroy(false); 656 } 657 } 658 659 void terminateHardwareResources() { 660 if (mAttachInfo.mHardwareRenderer != null) { 661 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 662 mAttachInfo.mHardwareRenderer.destroy(false); 663 } 664 } 665 666 void destroyHardwareLayers() { 667 if (mThread != Thread.currentThread()) { 668 if (mAttachInfo.mHardwareRenderer != null && 669 mAttachInfo.mHardwareRenderer.isEnabled()) { 670 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 671 } 672 } else { 673 if (mAttachInfo.mHardwareRenderer != null && 674 mAttachInfo.mHardwareRenderer.isEnabled()) { 675 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 676 } 677 } 678 } 679 680 public void attachFunctor(int functor) { 681 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 682 mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 683 } 684 } 685 686 public void detachFunctor(int functor) { 687 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 688 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 689 } 690 } 691 692 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 693 mAttachInfo.mHardwareAccelerated = false; 694 mAttachInfo.mHardwareAccelerationRequested = false; 695 696 // Don't enable hardware acceleration when the application is in compatibility mode 697 if (mTranslator != null) return; 698 699 // Try to enable hardware acceleration if requested 700 final boolean hardwareAccelerated = 701 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 702 703 if (hardwareAccelerated) { 704 if (!HardwareRenderer.isAvailable()) { 705 return; 706 } 707 708 // Persistent processes (including the system) should not do 709 // accelerated rendering on low-end devices. In that case, 710 // sRendererDisabled will be set. In addition, the system process 711 // itself should never do accelerated rendering. In that case, both 712 // sRendererDisabled and sSystemRendererDisabled are set. When 713 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 714 // can be used by code on the system process to escape that and enable 715 // HW accelerated drawing. (This is basically for the lock screen.) 716 717 final boolean fakeHwAccelerated = (attrs.privateFlags & 718 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 719 final boolean forceHwAccelerated = (attrs.privateFlags & 720 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 721 722 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 723 && forceHwAccelerated)) { 724 // Don't enable hardware acceleration when we're not on the main thread 725 if (!HardwareRenderer.sSystemRendererDisabled && 726 Looper.getMainLooper() != Looper.myLooper()) { 727 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 728 + "acceleration outside of the main thread, aborting"); 729 return; 730 } 731 732 final boolean renderThread = isRenderThreadRequested(context); 733 if (renderThread) { 734 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 735 } 736 737 if (mAttachInfo.mHardwareRenderer != null) { 738 mAttachInfo.mHardwareRenderer.destroy(true); 739 } 740 741 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 742 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 743 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 744 = mAttachInfo.mHardwareRenderer != null; 745 746 } else if (fakeHwAccelerated) { 747 // The window had wanted to use hardware acceleration, but this 748 // is not allowed in its process. By setting this flag, it can 749 // still render as if it was accelerated. This is basically for 750 // the preview windows the window manager shows for launching 751 // applications, so they will look more like the app being launched. 752 mAttachInfo.mHardwareAccelerationRequested = true; 753 } 754 } 755 } 756 757 public View getView() { 758 return mView; 759 } 760 761 final WindowLeaked getLocation() { 762 return mLocation; 763 } 764 765 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 766 synchronized (this) { 767 int oldSoftInputMode = mWindowAttributes.softInputMode; 768 // preserve compatible window flag if exists. 769 int compatibleWindowFlag = 770 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 771 // transfer over system UI visibility values as they carry current state. 772 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 773 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 774 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 775 mWindowAttributes.flags |= compatibleWindowFlag; 776 777 if (newView) { 778 mSoftInputMode = attrs.softInputMode; 779 requestLayout(); 780 } 781 // Don't lose the mode we last auto-computed. 782 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 783 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 784 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 785 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 786 | (oldSoftInputMode 787 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 788 } 789 mWindowAttributesChanged = true; 790 scheduleTraversals(); 791 } 792 } 793 794 void handleAppVisibility(boolean visible) { 795 if (mAppVisible != visible) { 796 mAppVisible = visible; 797 scheduleTraversals(); 798 } 799 } 800 801 void handleGetNewSurface() { 802 mNewSurfaceNeeded = true; 803 mFullRedrawNeeded = true; 804 scheduleTraversals(); 805 } 806 807 void handleScreenStateChange(boolean on) { 808 if (on != mAttachInfo.mScreenOn) { 809 mAttachInfo.mScreenOn = on; 810 if (mView != null) { 811 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 812 } 813 if (on) { 814 mFullRedrawNeeded = true; 815 scheduleTraversals(); 816 } 817 } 818 } 819 820 /** 821 * {@inheritDoc} 822 */ 823 public void requestFitSystemWindows() { 824 checkThread(); 825 mFitSystemWindowsRequested = true; 826 scheduleTraversals(); 827 } 828 829 /** 830 * {@inheritDoc} 831 */ 832 public void requestLayout() { 833 checkThread(); 834 mLayoutRequested = true; 835 scheduleTraversals(); 836 } 837 838 /** 839 * {@inheritDoc} 840 */ 841 public boolean isLayoutRequested() { 842 return mLayoutRequested; 843 } 844 845 void invalidate() { 846 mDirty.set(0, 0, mWidth, mHeight); 847 scheduleTraversals(); 848 } 849 850 void invalidateWorld(View view) { 851 view.invalidate(); 852 if (view instanceof ViewGroup) { 853 ViewGroup parent = (ViewGroup)view; 854 for (int i=0; i<parent.getChildCount(); i++) { 855 invalidateWorld(parent.getChildAt(i)); 856 } 857 } 858 } 859 860 public void invalidateChild(View child, Rect dirty) { 861 invalidateChildInParent(null, dirty); 862 } 863 864 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 865 checkThread(); 866 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 867 868 if (dirty == null) { 869 invalidate(); 870 return null; 871 } 872 873 if (mCurScrollY != 0 || mTranslator != null) { 874 mTempRect.set(dirty); 875 dirty = mTempRect; 876 if (mCurScrollY != 0) { 877 dirty.offset(0, -mCurScrollY); 878 } 879 if (mTranslator != null) { 880 mTranslator.translateRectInAppWindowToScreen(dirty); 881 } 882 if (mAttachInfo.mScalingRequired) { 883 dirty.inset(-1, -1); 884 } 885 } 886 887 final Rect localDirty = mDirty; 888 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 889 mAttachInfo.mSetIgnoreDirtyState = true; 890 mAttachInfo.mIgnoreDirtyState = true; 891 } 892 893 // Add the new dirty rect to the current one 894 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 895 // Intersect with the bounds of the window to skip 896 // updates that lie outside of the visible region 897 final float appScale = mAttachInfo.mApplicationScale; 898 localDirty.intersect(0, 0, 899 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 900 901 if (!mWillDrawSoon) { 902 scheduleTraversals(); 903 } 904 905 return null; 906 } 907 908 void setStopped(boolean stopped) { 909 if (mStopped != stopped) { 910 mStopped = stopped; 911 if (!stopped) { 912 scheduleTraversals(); 913 } 914 } 915 } 916 917 public ViewParent getParent() { 918 return null; 919 } 920 921 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 922 if (child != mView) { 923 throw new RuntimeException("child is not mine, honest!"); 924 } 925 // Note: don't apply scroll offset, because we want to know its 926 // visibility in the virtual canvas being given to the view hierarchy. 927 return r.intersect(0, 0, mWidth, mHeight); 928 } 929 930 public void bringChildToFront(View child) { 931 } 932 933 int getHostVisibility() { 934 return mAppVisible ? mView.getVisibility() : View.GONE; 935 } 936 937 void disposeResizeBuffer() { 938 if (mResizeBuffer != null) { 939 mResizeBuffer.destroy(); 940 mResizeBuffer = null; 941 } 942 } 943 944 /** 945 * Add LayoutTransition to the list of transitions to be started in the next traversal. 946 * This list will be cleared after the transitions on the list are start()'ed. These 947 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 948 * happens during the layout phase of traversal, which we want to complete before any of the 949 * animations are started (because those animations may side-effect properties that layout 950 * depends upon, like the bounding rectangles of the affected views). So we add the transition 951 * to the list and it is started just prior to starting the drawing phase of traversal. 952 * 953 * @param transition The LayoutTransition to be started on the next traversal. 954 * 955 * @hide 956 */ 957 public void requestTransitionStart(LayoutTransition transition) { 958 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 959 if (mPendingTransitions == null) { 960 mPendingTransitions = new ArrayList<LayoutTransition>(); 961 } 962 mPendingTransitions.add(transition); 963 } 964 } 965 966 void scheduleTraversals() { 967 if (!mTraversalScheduled) { 968 mTraversalScheduled = true; 969 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 970 mChoreographer.postCallback( 971 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 972 scheduleConsumeBatchedInput(); 973 } 974 } 975 976 void unscheduleTraversals() { 977 if (mTraversalScheduled) { 978 mTraversalScheduled = false; 979 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 980 mChoreographer.removeCallbacks( 981 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 982 } 983 } 984 985 void doTraversal() { 986 if (mTraversalScheduled) { 987 mTraversalScheduled = false; 988 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 989 990 if (mProfile) { 991 Debug.startMethodTracing("ViewAncestor"); 992 } 993 994 final long traversalStartTime; 995 if (ViewDebug.DEBUG_LATENCY) { 996 traversalStartTime = System.nanoTime(); 997 if (mLastTraversalFinishedTimeNanos != 0) { 998 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals(); it has been " 999 + ((traversalStartTime - mLastTraversalFinishedTimeNanos) * 0.000001f) 1000 + "ms since the last traversals finished."); 1001 } else { 1002 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting performTraversals()."); 1003 } 1004 } 1005 1006 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1007 try { 1008 performTraversals(); 1009 } finally { 1010 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1011 } 1012 1013 if (ViewDebug.DEBUG_LATENCY) { 1014 long now = System.nanoTime(); 1015 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performTraversals() took " 1016 + ((now - traversalStartTime) * 0.000001f) 1017 + "ms."); 1018 mLastTraversalFinishedTimeNanos = now; 1019 } 1020 1021 if (mProfile) { 1022 Debug.stopMethodTracing(); 1023 mProfile = false; 1024 } 1025 } 1026 } 1027 1028 private boolean collectViewAttributes() { 1029 final View.AttachInfo attachInfo = mAttachInfo; 1030 if (attachInfo.mRecomputeGlobalAttributes) { 1031 //Log.i(TAG, "Computing view hierarchy attributes!"); 1032 attachInfo.mRecomputeGlobalAttributes = false; 1033 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1034 int oldVis = attachInfo.mSystemUiVisibility; 1035 boolean oldHasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1036 attachInfo.mKeepScreenOn = false; 1037 attachInfo.mSystemUiVisibility = 0; 1038 attachInfo.mHasSystemUiListeners = false; 1039 mView.dispatchCollectViewAttributes(attachInfo, 0); 1040 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1041 if (attachInfo.mKeepScreenOn != oldScreenOn 1042 || attachInfo.mSystemUiVisibility != oldVis 1043 || attachInfo.mHasSystemUiListeners != oldHasSystemUiListeners) { 1044 WindowManager.LayoutParams params = mWindowAttributes; 1045 if (attachInfo.mKeepScreenOn) { 1046 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1047 } 1048 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1049 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1050 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1051 return true; 1052 } 1053 } 1054 return false; 1055 } 1056 1057 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1058 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1059 int childWidthMeasureSpec; 1060 int childHeightMeasureSpec; 1061 boolean windowSizeMayChange = false; 1062 1063 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1064 "Measuring " + host + " in display " + desiredWindowWidth 1065 + "x" + desiredWindowHeight + "..."); 1066 1067 boolean goodMeasure = false; 1068 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1069 // On large screens, we don't want to allow dialogs to just 1070 // stretch to fill the entire width of the screen to display 1071 // one line of text. First try doing the layout at a smaller 1072 // size to see if it will fit. 1073 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1074 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1075 int baseSize = 0; 1076 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1077 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1078 } 1079 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1080 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1081 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1082 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1083 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1084 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1085 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1086 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1087 goodMeasure = true; 1088 } else { 1089 // Didn't fit in that size... try expanding a bit. 1090 baseSize = (baseSize+desiredWindowWidth)/2; 1091 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1092 + baseSize); 1093 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1094 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1095 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1096 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1097 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1098 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1099 goodMeasure = true; 1100 } 1101 } 1102 } 1103 } 1104 1105 if (!goodMeasure) { 1106 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1107 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1108 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1109 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1110 windowSizeMayChange = true; 1111 } 1112 } 1113 1114 if (DBG) { 1115 System.out.println("======================================"); 1116 System.out.println("performTraversals -- after measure"); 1117 host.debug(); 1118 } 1119 1120 return windowSizeMayChange; 1121 } 1122 1123 private void performTraversals() { 1124 // cache mView since it is used so much below... 1125 final View host = mView; 1126 1127 if (DBG) { 1128 System.out.println("======================================"); 1129 System.out.println("performTraversals"); 1130 host.debug(); 1131 } 1132 1133 if (host == null || !mAdded) 1134 return; 1135 1136 mWillDrawSoon = true; 1137 boolean windowSizeMayChange = false; 1138 boolean newSurface = false; 1139 boolean surfaceChanged = false; 1140 WindowManager.LayoutParams lp = mWindowAttributes; 1141 1142 int desiredWindowWidth; 1143 int desiredWindowHeight; 1144 1145 final View.AttachInfo attachInfo = mAttachInfo; 1146 1147 final int viewVisibility = getHostVisibility(); 1148 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1149 || mNewSurfaceNeeded; 1150 1151 WindowManager.LayoutParams params = null; 1152 if (mWindowAttributesChanged) { 1153 mWindowAttributesChanged = false; 1154 surfaceChanged = true; 1155 params = lp; 1156 } 1157 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1158 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1159 params = lp; 1160 mFullRedrawNeeded = true; 1161 mLayoutRequested = true; 1162 if (mLastInCompatMode) { 1163 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1164 mLastInCompatMode = false; 1165 } else { 1166 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1167 mLastInCompatMode = true; 1168 } 1169 } 1170 1171 mWindowAttributesChangesFlag = 0; 1172 1173 Rect frame = mWinFrame; 1174 if (mFirst) { 1175 mFullRedrawNeeded = true; 1176 mLayoutRequested = true; 1177 1178 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1179 // NOTE -- system code, won't try to do compat mode. 1180 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1181 Point size = new Point(); 1182 disp.getRealSize(size); 1183 desiredWindowWidth = size.x; 1184 desiredWindowHeight = size.y; 1185 } else { 1186 DisplayMetrics packageMetrics = 1187 mView.getContext().getResources().getDisplayMetrics(); 1188 desiredWindowWidth = packageMetrics.widthPixels; 1189 desiredWindowHeight = packageMetrics.heightPixels; 1190 } 1191 1192 // For the very first time, tell the view hierarchy that it 1193 // is attached to the window. Note that at this point the surface 1194 // object is not initialized to its backing store, but soon it 1195 // will be (assuming the window is visible). 1196 attachInfo.mSurface = mSurface; 1197 // We used to use the following condition to choose 32 bits drawing caches: 1198 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1199 // However, windows are now always 32 bits by default, so choose 32 bits 1200 attachInfo.mUse32BitDrawingCache = true; 1201 attachInfo.mHasWindowFocus = false; 1202 attachInfo.mWindowVisibility = viewVisibility; 1203 attachInfo.mRecomputeGlobalAttributes = false; 1204 viewVisibilityChanged = false; 1205 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1206 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1207 host.dispatchAttachedToWindow(attachInfo, 0); 1208 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1209 host.fitSystemWindows(mFitSystemWindowsInsets); 1210 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1211 1212 } else { 1213 desiredWindowWidth = frame.width(); 1214 desiredWindowHeight = frame.height(); 1215 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1216 if (DEBUG_ORIENTATION) Log.v(TAG, 1217 "View " + host + " resized to: " + frame); 1218 mFullRedrawNeeded = true; 1219 mLayoutRequested = true; 1220 windowSizeMayChange = true; 1221 } 1222 } 1223 1224 if (viewVisibilityChanged) { 1225 attachInfo.mWindowVisibility = viewVisibility; 1226 host.dispatchWindowVisibilityChanged(viewVisibility); 1227 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1228 destroyHardwareResources(); 1229 } 1230 if (viewVisibility == View.GONE) { 1231 // After making a window gone, we will count it as being 1232 // shown for the first time the next time it gets focus. 1233 mHasHadWindowFocus = false; 1234 } 1235 } 1236 1237 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1238 getRunQueue().executeActions(attachInfo.mHandler); 1239 1240 boolean insetsChanged = false; 1241 boolean activeRectChanged = false; 1242 1243 boolean layoutRequested = mLayoutRequested && !mStopped; 1244 if (layoutRequested) { 1245 1246 final Resources res = mView.getContext().getResources(); 1247 1248 if (mFirst) { 1249 // make sure touch mode code executes by setting cached value 1250 // to opposite of the added touch mode. 1251 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1252 ensureTouchModeLocally(mAddedTouchMode); 1253 activeRectChanged = true; 1254 } else { 1255 if (!mPendingSystemInsets.equals(mAttachInfo.mSystemInsets)) { 1256 mAttachInfo.mSystemInsets.set(mPendingSystemInsets); 1257 activeRectChanged = true; 1258 } 1259 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1260 insetsChanged = true; 1261 } 1262 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1263 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1264 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1265 + mAttachInfo.mVisibleInsets); 1266 } 1267 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1268 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1269 windowSizeMayChange = true; 1270 1271 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1272 // NOTE -- system code, won't try to do compat mode. 1273 Display disp = WindowManagerImpl.getDefault().getDefaultDisplay(); 1274 Point size = new Point(); 1275 disp.getRealSize(size); 1276 desiredWindowWidth = size.x; 1277 desiredWindowHeight = size.y; 1278 } else { 1279 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1280 desiredWindowWidth = packageMetrics.widthPixels; 1281 desiredWindowHeight = packageMetrics.heightPixels; 1282 } 1283 } 1284 } 1285 1286 // Ask host how big it wants to be 1287 windowSizeMayChange |= measureHierarchy(host, lp, res, 1288 desiredWindowWidth, desiredWindowHeight); 1289 } 1290 1291 if (collectViewAttributes()) { 1292 params = lp; 1293 } 1294 if (attachInfo.mForceReportNewAttributes) { 1295 attachInfo.mForceReportNewAttributes = false; 1296 params = lp; 1297 } 1298 1299 if (mFirst || attachInfo.mViewVisibilityChanged) { 1300 attachInfo.mViewVisibilityChanged = false; 1301 int resizeMode = mSoftInputMode & 1302 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1303 // If we are in auto resize mode, then we need to determine 1304 // what mode to use now. 1305 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1306 final int N = attachInfo.mScrollContainers.size(); 1307 for (int i=0; i<N; i++) { 1308 if (attachInfo.mScrollContainers.get(i).isShown()) { 1309 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1310 } 1311 } 1312 if (resizeMode == 0) { 1313 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1314 } 1315 if ((lp.softInputMode & 1316 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1317 lp.softInputMode = (lp.softInputMode & 1318 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1319 resizeMode; 1320 params = lp; 1321 } 1322 } 1323 } 1324 1325 if (params != null && (host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1326 if (!PixelFormat.formatHasAlpha(params.format)) { 1327 params.format = PixelFormat.TRANSLUCENT; 1328 } 1329 } 1330 1331 if (mFitSystemWindowsRequested) { 1332 mFitSystemWindowsRequested = false; 1333 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1334 host.fitSystemWindows(mFitSystemWindowsInsets); 1335 if (mLayoutRequested) { 1336 // Short-circuit catching a new layout request here, so 1337 // we don't need to go through two layout passes when things 1338 // change due to fitting system windows, which can happen a lot. 1339 windowSizeMayChange |= measureHierarchy(host, lp, 1340 mView.getContext().getResources(), 1341 desiredWindowWidth, desiredWindowHeight); 1342 } 1343 } 1344 1345 if (layoutRequested) { 1346 // Clear this now, so that if anything requests a layout in the 1347 // rest of this function we will catch it and re-run a full 1348 // layout pass. 1349 mLayoutRequested = false; 1350 } 1351 1352 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1353 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1354 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1355 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1356 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1357 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1358 1359 final boolean computesInternalInsets = 1360 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1361 1362 boolean insetsPending = false; 1363 int relayoutResult = 0; 1364 1365 if (mFirst || windowShouldResize || insetsChanged || 1366 viewVisibilityChanged || params != null) { 1367 1368 if (viewVisibility == View.VISIBLE) { 1369 // If this window is giving internal insets to the window 1370 // manager, and it is being added or changing its visibility, 1371 // then we want to first give the window manager "fake" 1372 // insets to cause it to effectively ignore the content of 1373 // the window during layout. This avoids it briefly causing 1374 // other windows to resize/move based on the raw frame of the 1375 // window, waiting until we can finish laying out this window 1376 // and get back to the window manager with the ultimately 1377 // computed insets. 1378 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1379 } 1380 1381 if (mSurfaceHolder != null) { 1382 mSurfaceHolder.mSurfaceLock.lock(); 1383 mDrawingAllowed = true; 1384 } 1385 1386 boolean hwInitialized = false; 1387 boolean contentInsetsChanged = false; 1388 boolean visibleInsetsChanged; 1389 boolean hadSurface = mSurface.isValid(); 1390 1391 try { 1392 if (DEBUG_LAYOUT) { 1393 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1394 host.getMeasuredHeight() + ", params=" + params); 1395 } 1396 1397 final int surfaceGenerationId = mSurface.getGenerationId(); 1398 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1399 1400 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1401 + " content=" + mPendingContentInsets.toShortString() 1402 + " visible=" + mPendingVisibleInsets.toShortString() 1403 + " surface=" + mSurface); 1404 1405 if (mPendingConfiguration.seq != 0) { 1406 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1407 + mPendingConfiguration); 1408 updateConfiguration(mPendingConfiguration, !mFirst); 1409 mPendingConfiguration.seq = 0; 1410 } 1411 1412 if (!mPendingSystemInsets.equals(mAttachInfo.mSystemInsets)) { 1413 activeRectChanged = true; 1414 mAttachInfo.mSystemInsets.set(mPendingSystemInsets); 1415 } 1416 contentInsetsChanged = !mPendingContentInsets.equals( 1417 mAttachInfo.mContentInsets); 1418 visibleInsetsChanged = !mPendingVisibleInsets.equals( 1419 mAttachInfo.mVisibleInsets); 1420 if (contentInsetsChanged) { 1421 if (mWidth > 0 && mHeight > 0 && lp != null && 1422 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1423 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1424 mSurface != null && mSurface.isValid() && 1425 !mAttachInfo.mTurnOffWindowResizeAnim && 1426 mAttachInfo.mHardwareRenderer != null && 1427 mAttachInfo.mHardwareRenderer.isEnabled() && 1428 mAttachInfo.mHardwareRenderer.validate() && 1429 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1430 1431 disposeResizeBuffer(); 1432 1433 boolean completed = false; 1434 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1435 HardwareCanvas layerCanvas = null; 1436 try { 1437 if (mResizeBuffer == null) { 1438 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1439 mWidth, mHeight, false); 1440 } else if (mResizeBuffer.getWidth() != mWidth || 1441 mResizeBuffer.getHeight() != mHeight) { 1442 mResizeBuffer.resize(mWidth, mHeight); 1443 } 1444 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1445 layerCanvas.setViewport(mWidth, mHeight); 1446 layerCanvas.onPreDraw(null); 1447 final int restoreCount = layerCanvas.save(); 1448 1449 layerCanvas.drawColor(0xff000000, PorterDuff.Mode.SRC); 1450 1451 int yoff; 1452 final boolean scrolling = mScroller != null 1453 && mScroller.computeScrollOffset(); 1454 if (scrolling) { 1455 yoff = mScroller.getCurrY(); 1456 mScroller.abortAnimation(); 1457 } else { 1458 yoff = mScrollY; 1459 } 1460 1461 layerCanvas.translate(0, -yoff); 1462 if (mTranslator != null) { 1463 mTranslator.translateCanvas(layerCanvas); 1464 } 1465 1466 mView.draw(layerCanvas); 1467 1468 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1469 1470 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1471 mResizeBufferDuration = mView.getResources().getInteger( 1472 com.android.internal.R.integer.config_mediumAnimTime); 1473 completed = true; 1474 1475 layerCanvas.restoreToCount(restoreCount); 1476 } catch (OutOfMemoryError e) { 1477 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1478 } finally { 1479 if (layerCanvas != null) { 1480 layerCanvas.onPostDraw(); 1481 } 1482 if (mResizeBuffer != null) { 1483 mResizeBuffer.end(hwRendererCanvas); 1484 if (!completed) { 1485 mResizeBuffer.destroy(); 1486 mResizeBuffer = null; 1487 } 1488 } 1489 } 1490 } 1491 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1492 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1493 + mAttachInfo.mContentInsets); 1494 } 1495 if (contentInsetsChanged || mLastSystemUiVisibility != 1496 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested) { 1497 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1498 mFitSystemWindowsRequested = false; 1499 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1500 host.fitSystemWindows(mFitSystemWindowsInsets); 1501 } 1502 if (visibleInsetsChanged) { 1503 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1504 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1505 + mAttachInfo.mVisibleInsets); 1506 } 1507 1508 if (!hadSurface) { 1509 if (mSurface.isValid()) { 1510 // If we are creating a new surface, then we need to 1511 // completely redraw it. Also, when we get to the 1512 // point of drawing it we will hold off and schedule 1513 // a new traversal instead. This is so we can tell the 1514 // window manager about all of the windows being displayed 1515 // before actually drawing them, so it can display then 1516 // all at once. 1517 newSurface = true; 1518 activeRectChanged = true; 1519 mFullRedrawNeeded = true; 1520 mPreviousTransparentRegion.setEmpty(); 1521 1522 if (mAttachInfo.mHardwareRenderer != null) { 1523 try { 1524 hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mHolder); 1525 } catch (Surface.OutOfResourcesException e) { 1526 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1527 try { 1528 if (!sWindowSession.outOfMemory(mWindow)) { 1529 Slog.w(TAG, "No processes killed for memory; killing self"); 1530 Process.killProcess(Process.myPid()); 1531 } 1532 } catch (RemoteException ex) { 1533 } 1534 mLayoutRequested = true; // ask wm for a new surface next time. 1535 return; 1536 } 1537 } 1538 } 1539 } else if (!mSurface.isValid()) { 1540 // If the surface has been removed, then reset the scroll 1541 // positions. 1542 mLastScrolledFocus = null; 1543 mScrollY = mCurScrollY = 0; 1544 if (mScroller != null) { 1545 mScroller.abortAnimation(); 1546 } 1547 disposeResizeBuffer(); 1548 // Our surface is gone 1549 if (mAttachInfo.mHardwareRenderer != null && 1550 mAttachInfo.mHardwareRenderer.isEnabled()) { 1551 mAttachInfo.mHardwareRenderer.destroy(true); 1552 } 1553 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1554 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1555 mFullRedrawNeeded = true; 1556 try { 1557 mAttachInfo.mHardwareRenderer.updateSurface(mHolder); 1558 } catch (Surface.OutOfResourcesException e) { 1559 Log.e(TAG, "OutOfResourcesException updating HW surface", e); 1560 try { 1561 if (!sWindowSession.outOfMemory(mWindow)) { 1562 Slog.w(TAG, "No processes killed for memory; killing self"); 1563 Process.killProcess(Process.myPid()); 1564 } 1565 } catch (RemoteException ex) { 1566 } 1567 mLayoutRequested = true; // ask wm for a new surface next time. 1568 return; 1569 } 1570 } 1571 } catch (RemoteException e) { 1572 } 1573 1574 if (DEBUG_ORIENTATION) Log.v( 1575 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1576 1577 attachInfo.mWindowLeft = frame.left; 1578 attachInfo.mWindowTop = frame.top; 1579 1580 // !!FIXME!! This next section handles the case where we did not get the 1581 // window size we asked for. We should avoid this by getting a maximum size from 1582 // the window session beforehand. 1583 if (mWidth != frame.width() || mHeight != frame.height()) { 1584 activeRectChanged = true; 1585 mWidth = frame.width(); 1586 mHeight = frame.height(); 1587 } 1588 1589 if (mSurfaceHolder != null) { 1590 // The app owns the surface; tell it about what is going on. 1591 if (mSurface.isValid()) { 1592 // XXX .copyFrom() doesn't work! 1593 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1594 mSurfaceHolder.mSurface = mSurface; 1595 } 1596 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1597 mSurfaceHolder.mSurfaceLock.unlock(); 1598 if (mSurface.isValid()) { 1599 if (!hadSurface) { 1600 mSurfaceHolder.ungetCallbacks(); 1601 1602 mIsCreating = true; 1603 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1604 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1605 if (callbacks != null) { 1606 for (SurfaceHolder.Callback c : callbacks) { 1607 c.surfaceCreated(mSurfaceHolder); 1608 } 1609 } 1610 surfaceChanged = true; 1611 } 1612 if (surfaceChanged) { 1613 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1614 lp.format, mWidth, mHeight); 1615 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1616 if (callbacks != null) { 1617 for (SurfaceHolder.Callback c : callbacks) { 1618 c.surfaceChanged(mSurfaceHolder, lp.format, 1619 mWidth, mHeight); 1620 } 1621 } 1622 } 1623 mIsCreating = false; 1624 } else if (hadSurface) { 1625 mSurfaceHolder.ungetCallbacks(); 1626 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1627 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1628 if (callbacks != null) { 1629 for (SurfaceHolder.Callback c : callbacks) { 1630 c.surfaceDestroyed(mSurfaceHolder); 1631 } 1632 } 1633 mSurfaceHolder.mSurfaceLock.lock(); 1634 try { 1635 mSurfaceHolder.mSurface = new Surface(); 1636 } finally { 1637 mSurfaceHolder.mSurfaceLock.unlock(); 1638 } 1639 } 1640 } 1641 1642 if (mAttachInfo.mHardwareRenderer != null && 1643 mAttachInfo.mHardwareRenderer.isEnabled()) { 1644 if (hwInitialized || windowShouldResize || 1645 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1646 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1647 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1648 if (!hwInitialized) { 1649 mAttachInfo.mHardwareRenderer.invalidate(mHolder); 1650 } 1651 } 1652 } 1653 1654 if (!mStopped) { 1655 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1656 (relayoutResult&WindowManagerImpl.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1657 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1658 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1659 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1660 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1661 1662 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1663 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1664 + " mHeight=" + mHeight 1665 + " measuredHeight=" + host.getMeasuredHeight() 1666 + " coveredInsetsChanged=" + contentInsetsChanged); 1667 1668 // Ask host how big it wants to be 1669 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1670 1671 // Implementation of weights from WindowManager.LayoutParams 1672 // We just grow the dimensions as needed and re-measure if 1673 // needs be 1674 int width = host.getMeasuredWidth(); 1675 int height = host.getMeasuredHeight(); 1676 boolean measureAgain = false; 1677 1678 if (lp.horizontalWeight > 0.0f) { 1679 width += (int) ((mWidth - width) * lp.horizontalWeight); 1680 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1681 MeasureSpec.EXACTLY); 1682 measureAgain = true; 1683 } 1684 if (lp.verticalWeight > 0.0f) { 1685 height += (int) ((mHeight - height) * lp.verticalWeight); 1686 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1687 MeasureSpec.EXACTLY); 1688 measureAgain = true; 1689 } 1690 1691 if (measureAgain) { 1692 if (DEBUG_LAYOUT) Log.v(TAG, 1693 "And hey let's measure once more: width=" + width 1694 + " height=" + height); 1695 host.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1696 } 1697 1698 layoutRequested = true; 1699 } 1700 } 1701 } 1702 1703 if (activeRectChanged && mSurface.isValid()) { 1704 mActiveRect.set(attachInfo.mSystemInsets.left, attachInfo.mSystemInsets.top, 1705 mWidth - attachInfo.mSystemInsets.right, 1706 mHeight - attachInfo.mSystemInsets.bottom); 1707 //Log.i(TAG, "Active rect " + mWindowAttributes.getTitle() + ": " + mActiveRect); 1708 mSurface.setActiveRect(mActiveRect); 1709 } 1710 1711 final boolean didLayout = layoutRequested && !mStopped; 1712 boolean triggerGlobalLayoutListener = didLayout 1713 || attachInfo.mRecomputeGlobalAttributes; 1714 if (didLayout) { 1715 mLayoutRequested = false; 1716 mScrollMayChange = true; 1717 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v( 1718 TAG, "Laying out " + host + " to (" + 1719 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1720 long startTime = 0L; 1721 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1722 startTime = SystemClock.elapsedRealtime(); 1723 } 1724 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1725 1726 if (false && ViewDebug.consistencyCheckEnabled) { 1727 if (!host.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_LAYOUT)) { 1728 throw new IllegalStateException("The view hierarchy is an inconsistent state," 1729 + "please refer to the logs with the tag " 1730 + ViewDebug.CONSISTENCY_LOG_TAG + " for more infomation."); 1731 } 1732 } 1733 1734 if (ViewDebug.DEBUG_PROFILE_LAYOUT) { 1735 EventLog.writeEvent(60001, SystemClock.elapsedRealtime() - startTime); 1736 } 1737 1738 // By this point all views have been sized and positionned 1739 // We can compute the transparent area 1740 1741 if ((host.mPrivateFlags & View.REQUEST_TRANSPARENT_REGIONS) != 0) { 1742 // start out transparent 1743 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1744 host.getLocationInWindow(mTmpLocation); 1745 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1746 mTmpLocation[0] + host.mRight - host.mLeft, 1747 mTmpLocation[1] + host.mBottom - host.mTop); 1748 1749 host.gatherTransparentRegion(mTransparentRegion); 1750 if (mTranslator != null) { 1751 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1752 } 1753 1754 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1755 mPreviousTransparentRegion.set(mTransparentRegion); 1756 // reconfigure window manager 1757 try { 1758 sWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1759 } catch (RemoteException e) { 1760 } 1761 } 1762 } 1763 1764 if (DBG) { 1765 System.out.println("======================================"); 1766 System.out.println("performTraversals -- after setFrame"); 1767 host.debug(); 1768 } 1769 } 1770 1771 if (triggerGlobalLayoutListener) { 1772 attachInfo.mRecomputeGlobalAttributes = false; 1773 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1774 1775 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1776 postSendWindowContentChangedCallback(mView); 1777 } 1778 } 1779 1780 if (computesInternalInsets) { 1781 // Clear the original insets. 1782 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1783 insets.reset(); 1784 1785 // Compute new insets in place. 1786 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1787 1788 // Tell the window manager. 1789 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1790 mLastGivenInsets.set(insets); 1791 1792 // Translate insets to screen coordinates if needed. 1793 final Rect contentInsets; 1794 final Rect visibleInsets; 1795 final Region touchableRegion; 1796 if (mTranslator != null) { 1797 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1798 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1799 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1800 } else { 1801 contentInsets = insets.contentInsets; 1802 visibleInsets = insets.visibleInsets; 1803 touchableRegion = insets.touchableRegion; 1804 } 1805 1806 try { 1807 sWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1808 contentInsets, visibleInsets, touchableRegion); 1809 } catch (RemoteException e) { 1810 } 1811 } 1812 } 1813 1814 boolean skipDraw = false; 1815 1816 if (mFirst) { 1817 // handle first focus request 1818 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1819 + mView.hasFocus()); 1820 if (mView != null) { 1821 if (!mView.hasFocus()) { 1822 mView.requestFocus(View.FOCUS_FORWARD); 1823 mFocusedView = mRealFocusedView = mView.findFocus(); 1824 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1825 + mFocusedView); 1826 } else { 1827 mRealFocusedView = mView.findFocus(); 1828 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1829 + mRealFocusedView); 1830 } 1831 } 1832 if ((relayoutResult&WindowManagerImpl.RELAYOUT_RES_ANIMATING) != 0) { 1833 // The first time we relayout the window, if the system is 1834 // doing window animations, we want to hold of on any future 1835 // draws until the animation is done. 1836 mWindowsAnimating = true; 1837 } 1838 } else if (mWindowsAnimating) { 1839 skipDraw = true; 1840 } 1841 1842 mFirst = false; 1843 mWillDrawSoon = false; 1844 mNewSurfaceNeeded = false; 1845 mViewVisibility = viewVisibility; 1846 1847 if (mAttachInfo.mHasWindowFocus) { 1848 final boolean imTarget = WindowManager.LayoutParams 1849 .mayUseInputMethod(mWindowAttributes.flags); 1850 if (imTarget != mLastWasImTarget) { 1851 mLastWasImTarget = imTarget; 1852 InputMethodManager imm = InputMethodManager.peekInstance(); 1853 if (imm != null && imTarget) { 1854 imm.startGettingWindowFocus(mView); 1855 imm.onWindowFocus(mView, mView.findFocus(), 1856 mWindowAttributes.softInputMode, 1857 !mHasHadWindowFocus, mWindowAttributes.flags); 1858 } 1859 } 1860 } 1861 1862 // Remember if we must report the next draw. 1863 if ((relayoutResult & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 1864 mReportNextDraw = true; 1865 } 1866 1867 boolean cancelDraw = attachInfo.mTreeObserver.dispatchOnPreDraw() || 1868 viewVisibility != View.VISIBLE; 1869 1870 if (!cancelDraw && !newSurface) { 1871 if (!skipDraw || mReportNextDraw) { 1872 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1873 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1874 mPendingTransitions.get(i).startChangingAnimations(); 1875 } 1876 mPendingTransitions.clear(); 1877 } 1878 1879 performDraw(); 1880 } 1881 } else { 1882 // End any pending transitions on this non-visible window 1883 if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1884 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1885 mPendingTransitions.get(i).endChangingAnimations(); 1886 } 1887 mPendingTransitions.clear(); 1888 } 1889 1890 if (viewVisibility == View.VISIBLE) { 1891 // Try again 1892 scheduleTraversals(); 1893 } 1894 } 1895 } 1896 1897 public void requestTransparentRegion(View child) { 1898 // the test below should not fail unless someone is messing with us 1899 checkThread(); 1900 if (mView == child) { 1901 mView.mPrivateFlags |= View.REQUEST_TRANSPARENT_REGIONS; 1902 // Need to make sure we re-evaluate the window attributes next 1903 // time around, to ensure the window has the correct format. 1904 mWindowAttributesChanged = true; 1905 mWindowAttributesChangesFlag = 0; 1906 requestLayout(); 1907 } 1908 } 1909 1910 /** 1911 * Figures out the measure spec for the root view in a window based on it's 1912 * layout params. 1913 * 1914 * @param windowSize 1915 * The available width or height of the window 1916 * 1917 * @param rootDimension 1918 * The layout params for one dimension (width or height) of the 1919 * window. 1920 * 1921 * @return The measure spec to use to measure the root view. 1922 */ 1923 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 1924 int measureSpec; 1925 switch (rootDimension) { 1926 1927 case ViewGroup.LayoutParams.MATCH_PARENT: 1928 // Window can't resize. Force root view to be windowSize. 1929 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 1930 break; 1931 case ViewGroup.LayoutParams.WRAP_CONTENT: 1932 // Window can resize. Set max size for root view. 1933 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 1934 break; 1935 default: 1936 // Window wants to be an exact size. Force root view to be that size. 1937 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 1938 break; 1939 } 1940 return measureSpec; 1941 } 1942 1943 int mHardwareYOffset; 1944 int mResizeAlpha; 1945 final Paint mResizePaint = new Paint(); 1946 1947 public void onHardwarePreDraw(HardwareCanvas canvas) { 1948 canvas.translate(0, -mHardwareYOffset); 1949 } 1950 1951 public void onHardwarePostDraw(HardwareCanvas canvas) { 1952 if (mResizeBuffer != null) { 1953 mResizePaint.setAlpha(mResizeAlpha); 1954 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 1955 } 1956 drawAccessibilityFocusedDrawableIfNeeded(canvas); 1957 } 1958 1959 /** 1960 * @hide 1961 */ 1962 void outputDisplayList(View view) { 1963 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 1964 DisplayList displayList = view.getDisplayList(); 1965 if (displayList != null) { 1966 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 1967 } 1968 } 1969 } 1970 1971 /** 1972 * @see #PROPERTY_PROFILE_RENDERING 1973 */ 1974 private void profileRendering(boolean enabled) { 1975 if (mProfileRendering) { 1976 mRenderProfilingEnabled = enabled; 1977 if (mRenderProfiler == null) { 1978 mRenderProfiler = new Thread(new Runnable() { 1979 @Override 1980 public void run() { 1981 Log.d(TAG, "Starting profiling thread"); 1982 while (mRenderProfilingEnabled) { 1983 mAttachInfo.mHandler.post(new Runnable() { 1984 @Override 1985 public void run() { 1986 mDirty.set(0, 0, mWidth, mHeight); 1987 scheduleTraversals(); 1988 } 1989 }); 1990 try { 1991 // TODO: This should use vsync when we get an API 1992 Thread.sleep(15); 1993 } catch (InterruptedException e) { 1994 Log.d(TAG, "Exiting profiling thread"); 1995 } 1996 } 1997 } 1998 }, "Rendering Profiler"); 1999 mRenderProfiler.start(); 2000 } else { 2001 mRenderProfiler.interrupt(); 2002 mRenderProfiler = null; 2003 } 2004 } 2005 } 2006 2007 /** 2008 * Called from draw() when DEBUG_FPS is enabled 2009 */ 2010 private void trackFPS() { 2011 // Tracks frames per second drawn. First value in a series of draws may be bogus 2012 // because it down not account for the intervening idle time 2013 long nowTime = System.currentTimeMillis(); 2014 if (mFpsStartTime < 0) { 2015 mFpsStartTime = mFpsPrevTime = nowTime; 2016 mFpsNumFrames = 0; 2017 } else { 2018 ++mFpsNumFrames; 2019 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2020 long frameTime = nowTime - mFpsPrevTime; 2021 long totalTime = nowTime - mFpsStartTime; 2022 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2023 mFpsPrevTime = nowTime; 2024 if (totalTime > 1000) { 2025 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2026 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2027 mFpsStartTime = nowTime; 2028 mFpsNumFrames = 0; 2029 } 2030 } 2031 } 2032 2033 private void performDraw() { 2034 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2035 return; 2036 } 2037 2038 final long drawStartTime; 2039 if (ViewDebug.DEBUG_LATENCY) { 2040 drawStartTime = System.nanoTime(); 2041 if (mLastDrawFinishedTimeNanos != 0) { 2042 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw(); it has been " 2043 + ((drawStartTime - mLastDrawFinishedTimeNanos) * 0.000001f) 2044 + "ms since the last draw finished."); 2045 } else { 2046 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "Starting draw()."); 2047 } 2048 } 2049 2050 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2051 mFullRedrawNeeded = false; 2052 2053 mIsDrawing = true; 2054 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2055 try { 2056 draw(fullRedrawNeeded); 2057 } finally { 2058 mIsDrawing = false; 2059 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2060 } 2061 2062 if (ViewDebug.DEBUG_LATENCY) { 2063 long now = System.nanoTime(); 2064 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "performDraw() took " 2065 + ((now - drawStartTime) * 0.000001f) 2066 + "ms."); 2067 mLastDrawFinishedTimeNanos = now; 2068 } 2069 2070 if (mReportNextDraw) { 2071 mReportNextDraw = false; 2072 2073 if (LOCAL_LOGV) { 2074 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2075 } 2076 if (mSurfaceHolder != null && mSurface.isValid()) { 2077 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2078 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2079 if (callbacks != null) { 2080 for (SurfaceHolder.Callback c : callbacks) { 2081 if (c instanceof SurfaceHolder.Callback2) { 2082 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2083 mSurfaceHolder); 2084 } 2085 } 2086 } 2087 } 2088 try { 2089 sWindowSession.finishDrawing(mWindow); 2090 } catch (RemoteException e) { 2091 } 2092 } 2093 } 2094 2095 private void draw(boolean fullRedrawNeeded) { 2096 Surface surface = mSurface; 2097 if (surface == null || !surface.isValid()) { 2098 return; 2099 } 2100 2101 if (DEBUG_FPS) { 2102 trackFPS(); 2103 } 2104 2105 if (!sFirstDrawComplete) { 2106 synchronized (sFirstDrawHandlers) { 2107 sFirstDrawComplete = true; 2108 final int count = sFirstDrawHandlers.size(); 2109 for (int i = 0; i< count; i++) { 2110 mHandler.post(sFirstDrawHandlers.get(i)); 2111 } 2112 } 2113 } 2114 2115 scrollToRectOrFocus(null, false); 2116 2117 final AttachInfo attachInfo = mAttachInfo; 2118 if (attachInfo.mViewScrollChanged) { 2119 attachInfo.mViewScrollChanged = false; 2120 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2121 } 2122 2123 int yoff; 2124 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2125 if (animating) { 2126 yoff = mScroller.getCurrY(); 2127 } else { 2128 yoff = mScrollY; 2129 } 2130 if (mCurScrollY != yoff) { 2131 mCurScrollY = yoff; 2132 fullRedrawNeeded = true; 2133 } 2134 2135 final float appScale = attachInfo.mApplicationScale; 2136 final boolean scalingRequired = attachInfo.mScalingRequired; 2137 2138 int resizeAlpha = 0; 2139 if (mResizeBuffer != null) { 2140 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2141 if (deltaTime < mResizeBufferDuration) { 2142 float amt = deltaTime/(float) mResizeBufferDuration; 2143 amt = mResizeInterpolator.getInterpolation(amt); 2144 animating = true; 2145 resizeAlpha = 255 - (int)(amt*255); 2146 } else { 2147 disposeResizeBuffer(); 2148 } 2149 } 2150 2151 final Rect dirty = mDirty; 2152 if (mSurfaceHolder != null) { 2153 // The app owns the surface, we won't draw. 2154 dirty.setEmpty(); 2155 if (animating) { 2156 if (mScroller != null) { 2157 mScroller.abortAnimation(); 2158 } 2159 disposeResizeBuffer(); 2160 } 2161 return; 2162 } 2163 2164 if (fullRedrawNeeded) { 2165 attachInfo.mIgnoreDirtyState = true; 2166 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2167 } 2168 2169 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2170 Log.v(TAG, "Draw " + mView + "/" 2171 + mWindowAttributes.getTitle() 2172 + ": dirty={" + dirty.left + "," + dirty.top 2173 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2174 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2175 appScale + ", width=" + mWidth + ", height=" + mHeight); 2176 } 2177 2178 attachInfo.mTreeObserver.dispatchOnDraw(); 2179 2180 if (!dirty.isEmpty() || mIsAnimating) { 2181 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2182 // Draw with hardware renderer. 2183 mIsAnimating = false; 2184 mHardwareYOffset = yoff; 2185 mResizeAlpha = resizeAlpha; 2186 2187 mCurrentDirty.set(dirty); 2188 mCurrentDirty.union(mPreviousDirty); 2189 mPreviousDirty.set(dirty); 2190 dirty.setEmpty(); 2191 2192 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2193 animating ? null : mCurrentDirty)) { 2194 mPreviousDirty.set(0, 0, mWidth, mHeight); 2195 } 2196 } else if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2197 return; 2198 } 2199 } 2200 2201 if (animating) { 2202 mFullRedrawNeeded = true; 2203 scheduleTraversals(); 2204 } 2205 } 2206 2207 /** 2208 * @return true if drawing was succesfull, false if an error occurred 2209 */ 2210 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2211 boolean scalingRequired, Rect dirty) { 2212 2213 // Draw with software renderer. 2214 Canvas canvas; 2215 try { 2216 int left = dirty.left; 2217 int top = dirty.top; 2218 int right = dirty.right; 2219 int bottom = dirty.bottom; 2220 2221 final long lockCanvasStartTime; 2222 if (ViewDebug.DEBUG_LATENCY) { 2223 lockCanvasStartTime = System.nanoTime(); 2224 } 2225 2226 canvas = mSurface.lockCanvas(dirty); 2227 2228 if (ViewDebug.DEBUG_LATENCY) { 2229 long now = System.nanoTime(); 2230 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- lockCanvas() took " 2231 + ((now - lockCanvasStartTime) * 0.000001f) + "ms"); 2232 } 2233 2234 if (left != dirty.left || top != dirty.top || right != dirty.right || 2235 bottom != dirty.bottom) { 2236 attachInfo.mIgnoreDirtyState = true; 2237 } 2238 2239 // TODO: Do this in native 2240 canvas.setDensity(mDensity); 2241 } catch (Surface.OutOfResourcesException e) { 2242 Log.e(TAG, "OutOfResourcesException locking surface", e); 2243 try { 2244 if (!sWindowSession.outOfMemory(mWindow)) { 2245 Slog.w(TAG, "No processes killed for memory; killing self"); 2246 Process.killProcess(Process.myPid()); 2247 } 2248 } catch (RemoteException ex) { 2249 } 2250 mLayoutRequested = true; // ask wm for a new surface next time. 2251 return false; 2252 } catch (IllegalArgumentException e) { 2253 Log.e(TAG, "IllegalArgumentException locking surface", e); 2254 // Don't assume this is due to out of memory, it could be 2255 // something else, and if it is something else then we could 2256 // kill stuff (or ourself) for no reason. 2257 mLayoutRequested = true; // ask wm for a new surface next time. 2258 return false; 2259 } 2260 2261 try { 2262 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2263 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2264 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2265 //canvas.drawARGB(255, 255, 0, 0); 2266 } 2267 2268 long startTime = 0L; 2269 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2270 startTime = SystemClock.elapsedRealtime(); 2271 } 2272 2273 // If this bitmap's format includes an alpha channel, we 2274 // need to clear it before drawing so that the child will 2275 // properly re-composite its drawing on a transparent 2276 // background. This automatically respects the clip/dirty region 2277 // or 2278 // If we are applying an offset, we need to clear the area 2279 // where the offset doesn't appear to avoid having garbage 2280 // left in the blank areas. 2281 if (!canvas.isOpaque() || yoff != 0) { 2282 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2283 } 2284 2285 dirty.setEmpty(); 2286 mIsAnimating = false; 2287 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2288 mView.mPrivateFlags |= View.DRAWN; 2289 2290 if (DEBUG_DRAW) { 2291 Context cxt = mView.getContext(); 2292 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2293 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2294 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2295 } 2296 try { 2297 canvas.translate(0, -yoff); 2298 if (mTranslator != null) { 2299 mTranslator.translateCanvas(canvas); 2300 } 2301 canvas.setScreenDensity(scalingRequired 2302 ? DisplayMetrics.DENSITY_DEVICE : 0); 2303 attachInfo.mSetIgnoreDirtyState = false; 2304 2305 final long drawStartTime; 2306 if (ViewDebug.DEBUG_LATENCY) { 2307 drawStartTime = System.nanoTime(); 2308 } 2309 2310 mView.draw(canvas); 2311 2312 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2313 2314 if (ViewDebug.DEBUG_LATENCY) { 2315 long now = System.nanoTime(); 2316 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- draw() took " 2317 + ((now - drawStartTime) * 0.000001f) + "ms"); 2318 } 2319 } finally { 2320 if (!attachInfo.mSetIgnoreDirtyState) { 2321 // Only clear the flag if it was not set during the mView.draw() call 2322 attachInfo.mIgnoreDirtyState = false; 2323 } 2324 } 2325 2326 if (false && ViewDebug.consistencyCheckEnabled) { 2327 mView.dispatchConsistencyCheck(ViewDebug.CONSISTENCY_DRAWING); 2328 } 2329 2330 if (ViewDebug.DEBUG_PROFILE_DRAWING) { 2331 EventLog.writeEvent(60000, SystemClock.elapsedRealtime() - startTime); 2332 } 2333 } finally { 2334 final long unlockCanvasAndPostStartTime; 2335 if (ViewDebug.DEBUG_LATENCY) { 2336 unlockCanvasAndPostStartTime = System.nanoTime(); 2337 } 2338 2339 surface.unlockCanvasAndPost(canvas); 2340 2341 if (ViewDebug.DEBUG_LATENCY) { 2342 long now = System.nanoTime(); 2343 Log.d(ViewDebug.DEBUG_LATENCY_TAG, "- unlockCanvasAndPost() took " 2344 + ((now - unlockCanvasAndPostStartTime) * 0.000001f) + "ms"); 2345 } 2346 2347 if (LOCAL_LOGV) { 2348 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2349 } 2350 } 2351 return true; 2352 } 2353 2354 /** 2355 * We want to draw a highlight around the current accessibility focused. 2356 * Since adding a style for all possible view is not a viable option we 2357 * have this specialized drawing method. 2358 * 2359 * Note: We are doing this here to be able to draw the highlight for 2360 * virtual views in addition to real ones. 2361 * 2362 * @param canvas The canvas on which to draw. 2363 */ 2364 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2365 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2366 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2367 return; 2368 } 2369 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2370 return; 2371 } 2372 Drawable drawable = getAccessibilityFocusedDrawable(); 2373 if (drawable == null) { 2374 return; 2375 } 2376 AccessibilityNodeProvider provider = 2377 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2378 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2379 if (provider == null) { 2380 mAccessibilityFocusedHost.getDrawingRect(bounds); 2381 if (mView instanceof ViewGroup) { 2382 ViewGroup viewGroup = (ViewGroup) mView; 2383 viewGroup.offsetDescendantRectToMyCoords(mAccessibilityFocusedHost, bounds); 2384 } 2385 } else { 2386 if (mAccessibilityFocusedVirtualView == null) { 2387 mAccessibilityFocusedVirtualView = provider.findAccessibilitiyFocus(View.NO_ID); 2388 } 2389 if (mAccessibilityFocusedVirtualView == null) { 2390 return; 2391 } 2392 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2393 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2394 } 2395 drawable.setBounds(bounds); 2396 drawable.draw(canvas); 2397 } 2398 2399 private Drawable getAccessibilityFocusedDrawable() { 2400 if (mAttachInfo != null) { 2401 // Lazily load the accessibility focus drawable. 2402 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2403 TypedValue value = new TypedValue(); 2404 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2405 R.attr.accessibilityFocusedDrawable, value, true); 2406 if (resolved) { 2407 mAttachInfo.mAccessibilityFocusDrawable = 2408 mView.mContext.getResources().getDrawable(value.resourceId); 2409 } 2410 } 2411 return mAttachInfo.mAccessibilityFocusDrawable; 2412 } 2413 return null; 2414 } 2415 2416 void invalidateDisplayLists() { 2417 final ArrayList<DisplayList> displayLists = mDisplayLists; 2418 final int count = displayLists.size(); 2419 2420 for (int i = 0; i < count; i++) { 2421 displayLists.get(i).invalidate(); 2422 } 2423 2424 displayLists.clear(); 2425 } 2426 2427 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2428 final View.AttachInfo attachInfo = mAttachInfo; 2429 final Rect ci = attachInfo.mContentInsets; 2430 final Rect vi = attachInfo.mVisibleInsets; 2431 int scrollY = 0; 2432 boolean handled = false; 2433 2434 if (vi.left > ci.left || vi.top > ci.top 2435 || vi.right > ci.right || vi.bottom > ci.bottom) { 2436 // We'll assume that we aren't going to change the scroll 2437 // offset, since we want to avoid that unless it is actually 2438 // going to make the focus visible... otherwise we scroll 2439 // all over the place. 2440 scrollY = mScrollY; 2441 // We can be called for two different situations: during a draw, 2442 // to update the scroll position if the focus has changed (in which 2443 // case 'rectangle' is null), or in response to a 2444 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2445 // is non-null and we just want to scroll to whatever that 2446 // rectangle is). 2447 View focus = mRealFocusedView; 2448 2449 // When in touch mode, focus points to the previously focused view, 2450 // which may have been removed from the view hierarchy. The following 2451 // line checks whether the view is still in our hierarchy. 2452 if (focus == null || focus.mAttachInfo != mAttachInfo) { 2453 mRealFocusedView = null; 2454 return false; 2455 } 2456 2457 if (focus != mLastScrolledFocus) { 2458 // If the focus has changed, then ignore any requests to scroll 2459 // to a rectangle; first we want to make sure the entire focus 2460 // view is visible. 2461 rectangle = null; 2462 } 2463 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2464 + " rectangle=" + rectangle + " ci=" + ci 2465 + " vi=" + vi); 2466 if (focus == mLastScrolledFocus && !mScrollMayChange 2467 && rectangle == null) { 2468 // Optimization: if the focus hasn't changed since last 2469 // time, and no layout has happened, then just leave things 2470 // as they are. 2471 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2472 + mScrollY + " vi=" + vi.toShortString()); 2473 } else if (focus != null) { 2474 // We need to determine if the currently focused view is 2475 // within the visible part of the window and, if not, apply 2476 // a pan so it can be seen. 2477 mLastScrolledFocus = focus; 2478 mScrollMayChange = false; 2479 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2480 // Try to find the rectangle from the focus view. 2481 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2482 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2483 + mView.getWidth() + " h=" + mView.getHeight() 2484 + " ci=" + ci.toShortString() 2485 + " vi=" + vi.toShortString()); 2486 if (rectangle == null) { 2487 focus.getFocusedRect(mTempRect); 2488 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2489 + ": focusRect=" + mTempRect.toShortString()); 2490 if (mView instanceof ViewGroup) { 2491 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2492 focus, mTempRect); 2493 } 2494 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2495 "Focus in window: focusRect=" 2496 + mTempRect.toShortString() 2497 + " visRect=" + mVisRect.toShortString()); 2498 } else { 2499 mTempRect.set(rectangle); 2500 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2501 "Request scroll to rect: " 2502 + mTempRect.toShortString() 2503 + " visRect=" + mVisRect.toShortString()); 2504 } 2505 if (mTempRect.intersect(mVisRect)) { 2506 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2507 "Focus window visible rect: " 2508 + mTempRect.toShortString()); 2509 if (mTempRect.height() > 2510 (mView.getHeight()-vi.top-vi.bottom)) { 2511 // If the focus simply is not going to fit, then 2512 // best is probably just to leave things as-is. 2513 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2514 "Too tall; leaving scrollY=" + scrollY); 2515 } else if ((mTempRect.top-scrollY) < vi.top) { 2516 scrollY -= vi.top - (mTempRect.top-scrollY); 2517 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2518 "Top covered; scrollY=" + scrollY); 2519 } else if ((mTempRect.bottom-scrollY) 2520 > (mView.getHeight()-vi.bottom)) { 2521 scrollY += (mTempRect.bottom-scrollY) 2522 - (mView.getHeight()-vi.bottom); 2523 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2524 "Bottom covered; scrollY=" + scrollY); 2525 } 2526 handled = true; 2527 } 2528 } 2529 } 2530 } 2531 2532 if (scrollY != mScrollY) { 2533 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2534 + mScrollY + " , new=" + scrollY); 2535 if (!immediate && mResizeBuffer == null) { 2536 if (mScroller == null) { 2537 mScroller = new Scroller(mView.getContext()); 2538 } 2539 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2540 } else if (mScroller != null) { 2541 mScroller.abortAnimation(); 2542 } 2543 mScrollY = scrollY; 2544 } 2545 2546 return handled; 2547 } 2548 2549 void setAccessibilityFocusedHost(View host) { 2550 if (mAccessibilityFocusedHost != null && mAccessibilityFocusedVirtualView == null) { 2551 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2552 } 2553 mAccessibilityFocusedHost = host; 2554 mAccessibilityFocusedVirtualView = null; 2555 } 2556 2557 public void requestChildFocus(View child, View focused) { 2558 checkThread(); 2559 2560 if (DEBUG_INPUT_RESIZE) { 2561 Log.v(TAG, "Request child focus: focus now " + focused); 2562 } 2563 2564 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, focused); 2565 scheduleTraversals(); 2566 2567 mFocusedView = mRealFocusedView = focused; 2568 } 2569 2570 public void clearChildFocus(View child) { 2571 checkThread(); 2572 2573 if (DEBUG_INPUT_RESIZE) { 2574 Log.v(TAG, "Clearing child focus"); 2575 } 2576 2577 mOldFocusedView = mFocusedView; 2578 2579 // Invoke the listener only if there is no view to take focus 2580 if (focusSearch(null, View.FOCUS_FORWARD) == null) { 2581 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(mOldFocusedView, null); 2582 } 2583 2584 mFocusedView = mRealFocusedView = null; 2585 } 2586 2587 @Override 2588 public ViewParent getParentForAccessibility() { 2589 return null; 2590 } 2591 2592 public void focusableViewAvailable(View v) { 2593 checkThread(); 2594 if (mView != null) { 2595 if (!mView.hasFocus()) { 2596 v.requestFocus(); 2597 } else { 2598 // the one case where will transfer focus away from the current one 2599 // is if the current view is a view group that prefers to give focus 2600 // to its children first AND the view is a descendant of it. 2601 mFocusedView = mView.findFocus(); 2602 boolean descendantsHaveDibsOnFocus = 2603 (mFocusedView instanceof ViewGroup) && 2604 (((ViewGroup) mFocusedView).getDescendantFocusability() == 2605 ViewGroup.FOCUS_AFTER_DESCENDANTS); 2606 if (descendantsHaveDibsOnFocus && isViewDescendantOf(v, mFocusedView)) { 2607 // If a view gets the focus, the listener will be invoked from requestChildFocus() 2608 v.requestFocus(); 2609 } 2610 } 2611 } 2612 } 2613 2614 public void recomputeViewAttributes(View child) { 2615 checkThread(); 2616 if (mView == child) { 2617 mAttachInfo.mRecomputeGlobalAttributes = true; 2618 if (!mWillDrawSoon) { 2619 scheduleTraversals(); 2620 } 2621 } 2622 } 2623 2624 void dispatchDetachedFromWindow() { 2625 if (mView != null && mView.mAttachInfo != null) { 2626 if (mAttachInfo.mHardwareRenderer != null && 2627 mAttachInfo.mHardwareRenderer.isEnabled()) { 2628 mAttachInfo.mHardwareRenderer.validate(); 2629 } 2630 mView.dispatchDetachedFromWindow(); 2631 } 2632 2633 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2634 mAccessibilityManager.removeAccessibilityStateChangeListener( 2635 mAccessibilityInteractionConnectionManager); 2636 removeSendWindowContentChangedCallback(); 2637 2638 destroyHardwareRenderer(); 2639 2640 mView = null; 2641 mAttachInfo.mRootView = null; 2642 mAttachInfo.mSurface = null; 2643 2644 mSurface.release(); 2645 2646 if (mInputQueueCallback != null && mInputQueue != null) { 2647 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2648 mInputQueueCallback = null; 2649 mInputQueue = null; 2650 } else if (mInputEventReceiver != null) { 2651 mInputEventReceiver.dispose(); 2652 mInputEventReceiver = null; 2653 } 2654 try { 2655 sWindowSession.remove(mWindow); 2656 } catch (RemoteException e) { 2657 } 2658 2659 // Dispose the input channel after removing the window so the Window Manager 2660 // doesn't interpret the input channel being closed as an abnormal termination. 2661 if (mInputChannel != null) { 2662 mInputChannel.dispose(); 2663 mInputChannel = null; 2664 } 2665 2666 unscheduleTraversals(); 2667 } 2668 2669 void updateConfiguration(Configuration config, boolean force) { 2670 if (DEBUG_CONFIGURATION) Log.v(TAG, 2671 "Applying new config to window " 2672 + mWindowAttributes.getTitle() 2673 + ": " + config); 2674 2675 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2676 if (ci != null) { 2677 config = new Configuration(config); 2678 ci.applyToConfiguration(config); 2679 } 2680 2681 synchronized (sConfigCallbacks) { 2682 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2683 sConfigCallbacks.get(i).onConfigurationChanged(config); 2684 } 2685 } 2686 if (mView != null) { 2687 // At this point the resources have been updated to 2688 // have the most recent config, whatever that is. Use 2689 // the on in them which may be newer. 2690 config = mView.getResources().getConfiguration(); 2691 if (force || mLastConfiguration.diff(config) != 0) { 2692 mLastConfiguration.setTo(config); 2693 mView.dispatchConfigurationChanged(config); 2694 } 2695 } 2696 } 2697 2698 /** 2699 * Return true if child is an ancestor of parent, (or equal to the parent). 2700 */ 2701 static boolean isViewDescendantOf(View child, View parent) { 2702 if (child == parent) { 2703 return true; 2704 } 2705 2706 final ViewParent theParent = child.getParent(); 2707 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2708 } 2709 2710 private static void forceLayout(View view) { 2711 view.forceLayout(); 2712 if (view instanceof ViewGroup) { 2713 ViewGroup group = (ViewGroup) view; 2714 final int count = group.getChildCount(); 2715 for (int i = 0; i < count; i++) { 2716 forceLayout(group.getChildAt(i)); 2717 } 2718 } 2719 } 2720 2721 private final static int MSG_INVALIDATE = 1; 2722 private final static int MSG_INVALIDATE_RECT = 2; 2723 private final static int MSG_DIE = 3; 2724 private final static int MSG_RESIZED = 4; 2725 private final static int MSG_RESIZED_REPORT = 5; 2726 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2727 private final static int MSG_DISPATCH_KEY = 7; 2728 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2729 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2730 private final static int MSG_IME_FINISHED_EVENT = 10; 2731 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2732 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2733 private final static int MSG_CHECK_FOCUS = 13; 2734 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2735 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2736 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2737 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2738 private final static int MSG_UPDATE_CONFIGURATION = 18; 2739 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2740 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2741 private final static int MSG_INVALIDATE_DISPLAY_LIST = 21; 2742 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 22; 2743 private final static int MSG_DISPATCH_DONE_ANIMATING = 23; 2744 private final static int MSG_INVALIDATE_WORLD = 24; 2745 2746 final class ViewRootHandler extends Handler { 2747 @Override 2748 public String getMessageName(Message message) { 2749 switch (message.what) { 2750 case MSG_INVALIDATE: 2751 return "MSG_INVALIDATE"; 2752 case MSG_INVALIDATE_RECT: 2753 return "MSG_INVALIDATE_RECT"; 2754 case MSG_DIE: 2755 return "MSG_DIE"; 2756 case MSG_RESIZED: 2757 return "MSG_RESIZED"; 2758 case MSG_RESIZED_REPORT: 2759 return "MSG_RESIZED_REPORT"; 2760 case MSG_WINDOW_FOCUS_CHANGED: 2761 return "MSG_WINDOW_FOCUS_CHANGED"; 2762 case MSG_DISPATCH_KEY: 2763 return "MSG_DISPATCH_KEY"; 2764 case MSG_DISPATCH_APP_VISIBILITY: 2765 return "MSG_DISPATCH_APP_VISIBILITY"; 2766 case MSG_DISPATCH_GET_NEW_SURFACE: 2767 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2768 case MSG_IME_FINISHED_EVENT: 2769 return "MSG_IME_FINISHED_EVENT"; 2770 case MSG_DISPATCH_KEY_FROM_IME: 2771 return "MSG_DISPATCH_KEY_FROM_IME"; 2772 case MSG_FINISH_INPUT_CONNECTION: 2773 return "MSG_FINISH_INPUT_CONNECTION"; 2774 case MSG_CHECK_FOCUS: 2775 return "MSG_CHECK_FOCUS"; 2776 case MSG_CLOSE_SYSTEM_DIALOGS: 2777 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2778 case MSG_DISPATCH_DRAG_EVENT: 2779 return "MSG_DISPATCH_DRAG_EVENT"; 2780 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2781 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2782 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2783 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2784 case MSG_UPDATE_CONFIGURATION: 2785 return "MSG_UPDATE_CONFIGURATION"; 2786 case MSG_PROCESS_INPUT_EVENTS: 2787 return "MSG_PROCESS_INPUT_EVENTS"; 2788 case MSG_DISPATCH_SCREEN_STATE: 2789 return "MSG_DISPATCH_SCREEN_STATE"; 2790 case MSG_INVALIDATE_DISPLAY_LIST: 2791 return "MSG_INVALIDATE_DISPLAY_LIST"; 2792 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2793 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2794 case MSG_DISPATCH_DONE_ANIMATING: 2795 return "MSG_DISPATCH_DONE_ANIMATING"; 2796 } 2797 return super.getMessageName(message); 2798 } 2799 2800 @Override 2801 public void handleMessage(Message msg) { 2802 switch (msg.what) { 2803 case MSG_INVALIDATE: 2804 ((View) msg.obj).invalidate(); 2805 break; 2806 case MSG_INVALIDATE_RECT: 2807 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 2808 info.target.invalidate(info.left, info.top, info.right, info.bottom); 2809 info.release(); 2810 break; 2811 case MSG_IME_FINISHED_EVENT: 2812 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 2813 break; 2814 case MSG_PROCESS_INPUT_EVENTS: 2815 mProcessInputEventsScheduled = false; 2816 doProcessInputEvents(); 2817 break; 2818 case MSG_DISPATCH_APP_VISIBILITY: 2819 handleAppVisibility(msg.arg1 != 0); 2820 break; 2821 case MSG_DISPATCH_GET_NEW_SURFACE: 2822 handleGetNewSurface(); 2823 break; 2824 case MSG_RESIZED: 2825 ResizedInfo ri = (ResizedInfo)msg.obj; 2826 2827 if (mWinFrame.width() == msg.arg1 && mWinFrame.height() == msg.arg2 2828 && mPendingSystemInsets.equals(ri.systemInsets) 2829 && mPendingContentInsets.equals(ri.contentInsets) 2830 && mPendingVisibleInsets.equals(ri.visibleInsets) 2831 && ((ResizedInfo)msg.obj).newConfig == null) { 2832 break; 2833 } 2834 // fall through... 2835 case MSG_RESIZED_REPORT: 2836 if (mAdded) { 2837 Configuration config = ((ResizedInfo)msg.obj).newConfig; 2838 if (config != null) { 2839 updateConfiguration(config, false); 2840 } 2841 mWinFrame.left = 0; 2842 mWinFrame.right = msg.arg1; 2843 mWinFrame.top = 0; 2844 mWinFrame.bottom = msg.arg2; 2845 mPendingSystemInsets.set(((ResizedInfo)msg.obj).systemInsets); 2846 mPendingContentInsets.set(((ResizedInfo)msg.obj).contentInsets); 2847 mPendingVisibleInsets.set(((ResizedInfo)msg.obj).visibleInsets); 2848 if (msg.what == MSG_RESIZED_REPORT) { 2849 mReportNextDraw = true; 2850 } 2851 2852 if (mView != null) { 2853 forceLayout(mView); 2854 } 2855 requestLayout(); 2856 } 2857 break; 2858 case MSG_WINDOW_FOCUS_CHANGED: { 2859 if (mAdded) { 2860 boolean hasWindowFocus = msg.arg1 != 0; 2861 mAttachInfo.mHasWindowFocus = hasWindowFocus; 2862 2863 profileRendering(hasWindowFocus); 2864 2865 if (hasWindowFocus) { 2866 boolean inTouchMode = msg.arg2 != 0; 2867 ensureTouchModeLocally(inTouchMode); 2868 2869 if (mAttachInfo.mHardwareRenderer != null && 2870 mSurface != null && mSurface.isValid()) { 2871 mFullRedrawNeeded = true; 2872 try { 2873 mAttachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2874 mHolder); 2875 } catch (Surface.OutOfResourcesException e) { 2876 Log.e(TAG, "OutOfResourcesException locking surface", e); 2877 try { 2878 if (!sWindowSession.outOfMemory(mWindow)) { 2879 Slog.w(TAG, "No processes killed for memory; killing self"); 2880 Process.killProcess(Process.myPid()); 2881 } 2882 } catch (RemoteException ex) { 2883 } 2884 // Retry in a bit. 2885 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 2886 return; 2887 } 2888 } 2889 } 2890 2891 mLastWasImTarget = WindowManager.LayoutParams 2892 .mayUseInputMethod(mWindowAttributes.flags); 2893 2894 InputMethodManager imm = InputMethodManager.peekInstance(); 2895 if (mView != null) { 2896 if (hasWindowFocus && imm != null && mLastWasImTarget) { 2897 imm.startGettingWindowFocus(mView); 2898 } 2899 mAttachInfo.mKeyDispatchState.reset(); 2900 mView.dispatchWindowFocusChanged(hasWindowFocus); 2901 } 2902 2903 // Note: must be done after the focus change callbacks, 2904 // so all of the view state is set up correctly. 2905 if (hasWindowFocus) { 2906 if (imm != null && mLastWasImTarget) { 2907 imm.onWindowFocus(mView, mView.findFocus(), 2908 mWindowAttributes.softInputMode, 2909 !mHasHadWindowFocus, mWindowAttributes.flags); 2910 } 2911 // Clear the forward bit. We can just do this directly, since 2912 // the window manager doesn't care about it. 2913 mWindowAttributes.softInputMode &= 2914 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2915 ((WindowManager.LayoutParams)mView.getLayoutParams()) 2916 .softInputMode &= 2917 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 2918 mHasHadWindowFocus = true; 2919 } 2920 2921 setAccessibilityFocusedHost(null); 2922 2923 if (mView != null && mAccessibilityManager.isEnabled()) { 2924 if (hasWindowFocus) { 2925 mView.sendAccessibilityEvent( 2926 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 2927 // Give accessibility focus to the view that has input 2928 // focus if such, otherwise to the first one. 2929 if (mView instanceof ViewGroup) { 2930 ViewGroup viewGroup = (ViewGroup) mView; 2931 View focused = viewGroup.findFocus(); 2932 if (focused != null) { 2933 focused.requestAccessibilityFocus(); 2934 } 2935 } 2936 // There is no accessibility focus, despite our effort 2937 // above, now just give it to the first view. 2938 if (mAccessibilityFocusedHost == null) { 2939 mView.requestAccessibilityFocus(); 2940 } 2941 } 2942 } 2943 } 2944 } break; 2945 case MSG_DIE: 2946 doDie(); 2947 break; 2948 case MSG_DISPATCH_KEY: { 2949 KeyEvent event = (KeyEvent)msg.obj; 2950 enqueueInputEvent(event, null, 0, true); 2951 } break; 2952 case MSG_DISPATCH_KEY_FROM_IME: { 2953 if (LOCAL_LOGV) Log.v( 2954 TAG, "Dispatching key " 2955 + msg.obj + " from IME to " + mView); 2956 KeyEvent event = (KeyEvent)msg.obj; 2957 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 2958 // The IME is trying to say this event is from the 2959 // system! Bad bad bad! 2960 //noinspection UnusedAssignment 2961 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 2962 } 2963 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 2964 } break; 2965 case MSG_FINISH_INPUT_CONNECTION: { 2966 InputMethodManager imm = InputMethodManager.peekInstance(); 2967 if (imm != null) { 2968 imm.reportFinishInputConnection((InputConnection)msg.obj); 2969 } 2970 } break; 2971 case MSG_CHECK_FOCUS: { 2972 InputMethodManager imm = InputMethodManager.peekInstance(); 2973 if (imm != null) { 2974 imm.checkFocus(); 2975 } 2976 } break; 2977 case MSG_CLOSE_SYSTEM_DIALOGS: { 2978 if (mView != null) { 2979 mView.onCloseSystemDialogs((String)msg.obj); 2980 } 2981 } break; 2982 case MSG_DISPATCH_DRAG_EVENT: 2983 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 2984 DragEvent event = (DragEvent)msg.obj; 2985 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 2986 handleDragEvent(event); 2987 } break; 2988 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 2989 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo)msg.obj); 2990 } break; 2991 case MSG_UPDATE_CONFIGURATION: { 2992 Configuration config = (Configuration)msg.obj; 2993 if (config.isOtherSeqNewer(mLastConfiguration)) { 2994 config = mLastConfiguration; 2995 } 2996 updateConfiguration(config, false); 2997 } break; 2998 case MSG_DISPATCH_SCREEN_STATE: { 2999 if (mView != null) { 3000 handleScreenStateChange(msg.arg1 == 1); 3001 } 3002 } break; 3003 case MSG_INVALIDATE_DISPLAY_LIST: { 3004 invalidateDisplayLists(); 3005 } break; 3006 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3007 setAccessibilityFocusedHost(null); 3008 } break; 3009 case MSG_DISPATCH_DONE_ANIMATING: { 3010 handleDispatchDoneAnimating(); 3011 } break; 3012 case MSG_INVALIDATE_WORLD: { 3013 invalidateWorld(mView); 3014 } break; 3015 } 3016 } 3017 } 3018 3019 final ViewRootHandler mHandler = new ViewRootHandler(); 3020 3021 /** 3022 * Something in the current window tells us we need to change the touch mode. For 3023 * example, we are not in touch mode, and the user touches the screen. 3024 * 3025 * If the touch mode has changed, tell the window manager, and handle it locally. 3026 * 3027 * @param inTouchMode Whether we want to be in touch mode. 3028 * @return True if the touch mode changed and focus changed was changed as a result 3029 */ 3030 boolean ensureTouchMode(boolean inTouchMode) { 3031 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3032 + "touch mode is " + mAttachInfo.mInTouchMode); 3033 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3034 3035 // tell the window manager 3036 try { 3037 sWindowSession.setInTouchMode(inTouchMode); 3038 } catch (RemoteException e) { 3039 throw new RuntimeException(e); 3040 } 3041 3042 // handle the change 3043 return ensureTouchModeLocally(inTouchMode); 3044 } 3045 3046 /** 3047 * Ensure that the touch mode for this window is set, and if it is changing, 3048 * take the appropriate action. 3049 * @param inTouchMode Whether we want to be in touch mode. 3050 * @return True if the touch mode changed and focus changed was changed as a result 3051 */ 3052 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3053 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3054 + "touch mode is " + mAttachInfo.mInTouchMode); 3055 3056 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3057 3058 mAttachInfo.mInTouchMode = inTouchMode; 3059 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3060 3061 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3062 } 3063 3064 private boolean enterTouchMode() { 3065 if (mView != null) { 3066 if (mView.hasFocus()) { 3067 // note: not relying on mFocusedView here because this could 3068 // be when the window is first being added, and mFocused isn't 3069 // set yet. 3070 final View focused = mView.findFocus(); 3071 if (focused != null && !focused.isFocusableInTouchMode()) { 3072 3073 final ViewGroup ancestorToTakeFocus = 3074 findAncestorToTakeFocusInTouchMode(focused); 3075 if (ancestorToTakeFocus != null) { 3076 // there is an ancestor that wants focus after its descendants that 3077 // is focusable in touch mode.. give it focus 3078 return ancestorToTakeFocus.requestFocus(); 3079 } else { 3080 // nothing appropriate to have focus in touch mode, clear it out 3081 mView.unFocus(); 3082 mAttachInfo.mTreeObserver.dispatchOnGlobalFocusChange(focused, null); 3083 mFocusedView = null; 3084 mOldFocusedView = null; 3085 return true; 3086 } 3087 } 3088 } 3089 } 3090 return false; 3091 } 3092 3093 /** 3094 * Find an ancestor of focused that wants focus after its descendants and is 3095 * focusable in touch mode. 3096 * @param focused The currently focused view. 3097 * @return An appropriate view, or null if no such view exists. 3098 */ 3099 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3100 ViewParent parent = focused.getParent(); 3101 while (parent instanceof ViewGroup) { 3102 final ViewGroup vgParent = (ViewGroup) parent; 3103 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3104 && vgParent.isFocusableInTouchMode()) { 3105 return vgParent; 3106 } 3107 if (vgParent.isRootNamespace()) { 3108 return null; 3109 } else { 3110 parent = vgParent.getParent(); 3111 } 3112 } 3113 return null; 3114 } 3115 3116 private boolean leaveTouchMode() { 3117 if (mView != null) { 3118 if (mView.hasFocus()) { 3119 // i learned the hard way to not trust mFocusedView :) 3120 mFocusedView = mView.findFocus(); 3121 if (!(mFocusedView instanceof ViewGroup)) { 3122 // some view has focus, let it keep it 3123 return false; 3124 } else if (((ViewGroup)mFocusedView).getDescendantFocusability() != 3125 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3126 // some view group has focus, and doesn't prefer its children 3127 // over itself for focus, so let them keep it. 3128 return false; 3129 } 3130 } 3131 3132 // find the best view to give focus to in this brave new non-touch-mode 3133 // world 3134 final View focused = focusSearch(null, View.FOCUS_DOWN); 3135 if (focused != null) { 3136 return focused.requestFocus(View.FOCUS_DOWN); 3137 } 3138 } 3139 return false; 3140 } 3141 3142 private void deliverInputEvent(QueuedInputEvent q) { 3143 if (ViewDebug.DEBUG_LATENCY) { 3144 q.mDeliverTimeNanos = System.nanoTime(); 3145 } 3146 3147 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3148 try { 3149 if (q.mEvent instanceof KeyEvent) { 3150 deliverKeyEvent(q); 3151 } else { 3152 final int source = q.mEvent.getSource(); 3153 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3154 deliverPointerEvent(q); 3155 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3156 deliverTrackballEvent(q); 3157 } else { 3158 deliverGenericMotionEvent(q); 3159 } 3160 } 3161 } finally { 3162 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3163 } 3164 } 3165 3166 private void deliverPointerEvent(QueuedInputEvent q) { 3167 final MotionEvent event = (MotionEvent)q.mEvent; 3168 final boolean isTouchEvent = event.isTouchEvent(); 3169 if (mInputEventConsistencyVerifier != null) { 3170 if (isTouchEvent) { 3171 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3172 } else { 3173 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3174 } 3175 } 3176 3177 // If there is no view, then the event will not be handled. 3178 if (mView == null || !mAdded) { 3179 finishInputEvent(q, false); 3180 return; 3181 } 3182 3183 // Translate the pointer event for compatibility, if needed. 3184 if (mTranslator != null) { 3185 mTranslator.translateEventInScreenToAppWindow(event); 3186 } 3187 3188 // Enter touch mode on down or scroll. 3189 final int action = event.getAction(); 3190 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3191 ensureTouchMode(true); 3192 } 3193 3194 // Offset the scroll position. 3195 if (mCurScrollY != 0) { 3196 event.offsetLocation(0, mCurScrollY); 3197 } 3198 if (MEASURE_LATENCY) { 3199 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3200 } 3201 3202 // Remember the touch position for possible drag-initiation. 3203 if (isTouchEvent) { 3204 mLastTouchPoint.x = event.getRawX(); 3205 mLastTouchPoint.y = event.getRawY(); 3206 } 3207 3208 // Dispatch touch to view hierarchy. 3209 boolean handled = mView.dispatchPointerEvent(event); 3210 if (MEASURE_LATENCY) { 3211 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3212 } 3213 if (handled) { 3214 finishInputEvent(q, true); 3215 return; 3216 } 3217 3218 // Pointer event was unhandled. 3219 finishInputEvent(q, false); 3220 } 3221 3222 private void deliverTrackballEvent(QueuedInputEvent q) { 3223 final MotionEvent event = (MotionEvent)q.mEvent; 3224 if (mInputEventConsistencyVerifier != null) { 3225 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3226 } 3227 3228 // If there is no view, then the event will not be handled. 3229 if (mView == null || !mAdded) { 3230 finishInputEvent(q, false); 3231 return; 3232 } 3233 3234 // Deliver the trackball event to the view. 3235 if (mView.dispatchTrackballEvent(event)) { 3236 // If we reach this, we delivered a trackball event to mView and 3237 // mView consumed it. Because we will not translate the trackball 3238 // event into a key event, touch mode will not exit, so we exit 3239 // touch mode here. 3240 ensureTouchMode(false); 3241 3242 finishInputEvent(q, true); 3243 mLastTrackballTime = Integer.MIN_VALUE; 3244 return; 3245 } 3246 3247 // Translate the trackball event into DPAD keys and try to deliver those. 3248 final TrackballAxis x = mTrackballAxisX; 3249 final TrackballAxis y = mTrackballAxisY; 3250 3251 long curTime = SystemClock.uptimeMillis(); 3252 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3253 // It has been too long since the last movement, 3254 // so restart at the beginning. 3255 x.reset(0); 3256 y.reset(0); 3257 mLastTrackballTime = curTime; 3258 } 3259 3260 final int action = event.getAction(); 3261 final int metaState = event.getMetaState(); 3262 switch (action) { 3263 case MotionEvent.ACTION_DOWN: 3264 x.reset(2); 3265 y.reset(2); 3266 enqueueInputEvent(new KeyEvent(curTime, curTime, 3267 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3268 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3269 InputDevice.SOURCE_KEYBOARD)); 3270 break; 3271 case MotionEvent.ACTION_UP: 3272 x.reset(2); 3273 y.reset(2); 3274 enqueueInputEvent(new KeyEvent(curTime, curTime, 3275 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3276 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3277 InputDevice.SOURCE_KEYBOARD)); 3278 break; 3279 } 3280 3281 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3282 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3283 + " move=" + event.getX() 3284 + " / Y=" + y.position + " step=" 3285 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3286 + " move=" + event.getY()); 3287 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3288 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3289 3290 // Generate DPAD events based on the trackball movement. 3291 // We pick the axis that has moved the most as the direction of 3292 // the DPAD. When we generate DPAD events for one axis, then the 3293 // other axis is reset -- we don't want to perform DPAD jumps due 3294 // to slight movements in the trackball when making major movements 3295 // along the other axis. 3296 int keycode = 0; 3297 int movement = 0; 3298 float accel = 1; 3299 if (xOff > yOff) { 3300 movement = x.generate((2/event.getXPrecision())); 3301 if (movement != 0) { 3302 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3303 : KeyEvent.KEYCODE_DPAD_LEFT; 3304 accel = x.acceleration; 3305 y.reset(2); 3306 } 3307 } else if (yOff > 0) { 3308 movement = y.generate((2/event.getYPrecision())); 3309 if (movement != 0) { 3310 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3311 : KeyEvent.KEYCODE_DPAD_UP; 3312 accel = y.acceleration; 3313 x.reset(2); 3314 } 3315 } 3316 3317 if (keycode != 0) { 3318 if (movement < 0) movement = -movement; 3319 int accelMovement = (int)(movement * accel); 3320 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3321 + " accelMovement=" + accelMovement 3322 + " accel=" + accel); 3323 if (accelMovement > movement) { 3324 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3325 + keycode); 3326 movement--; 3327 int repeatCount = accelMovement - movement; 3328 enqueueInputEvent(new KeyEvent(curTime, curTime, 3329 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3330 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3331 InputDevice.SOURCE_KEYBOARD)); 3332 } 3333 while (movement > 0) { 3334 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3335 + keycode); 3336 movement--; 3337 curTime = SystemClock.uptimeMillis(); 3338 enqueueInputEvent(new KeyEvent(curTime, curTime, 3339 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3340 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3341 InputDevice.SOURCE_KEYBOARD)); 3342 enqueueInputEvent(new KeyEvent(curTime, curTime, 3343 KeyEvent.ACTION_UP, keycode, 0, metaState, 3344 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3345 InputDevice.SOURCE_KEYBOARD)); 3346 } 3347 mLastTrackballTime = curTime; 3348 } 3349 3350 // Unfortunately we can't tell whether the application consumed the keys, so 3351 // we always consider the trackball event handled. 3352 finishInputEvent(q, true); 3353 } 3354 3355 private void deliverGenericMotionEvent(QueuedInputEvent q) { 3356 final MotionEvent event = (MotionEvent)q.mEvent; 3357 if (mInputEventConsistencyVerifier != null) { 3358 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3359 } 3360 3361 final int source = event.getSource(); 3362 final boolean isJoystick = (source & InputDevice.SOURCE_CLASS_JOYSTICK) != 0; 3363 3364 // If there is no view, then the event will not be handled. 3365 if (mView == null || !mAdded) { 3366 if (isJoystick) { 3367 updateJoystickDirection(event, false); 3368 } 3369 finishInputEvent(q, false); 3370 return; 3371 } 3372 3373 // Deliver the event to the view. 3374 if (mView.dispatchGenericMotionEvent(event)) { 3375 if (isJoystick) { 3376 updateJoystickDirection(event, false); 3377 } 3378 finishInputEvent(q, true); 3379 return; 3380 } 3381 3382 if (isJoystick) { 3383 // Translate the joystick event into DPAD keys and try to deliver those. 3384 updateJoystickDirection(event, true); 3385 finishInputEvent(q, true); 3386 } else { 3387 finishInputEvent(q, false); 3388 } 3389 } 3390 3391 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3392 final long time = event.getEventTime(); 3393 final int metaState = event.getMetaState(); 3394 final int deviceId = event.getDeviceId(); 3395 final int source = event.getSource(); 3396 3397 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3398 if (xDirection == 0) { 3399 xDirection = joystickAxisValueToDirection(event.getX()); 3400 } 3401 3402 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3403 if (yDirection == 0) { 3404 yDirection = joystickAxisValueToDirection(event.getY()); 3405 } 3406 3407 if (xDirection != mLastJoystickXDirection) { 3408 if (mLastJoystickXKeyCode != 0) { 3409 enqueueInputEvent(new KeyEvent(time, time, 3410 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3411 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3412 mLastJoystickXKeyCode = 0; 3413 } 3414 3415 mLastJoystickXDirection = xDirection; 3416 3417 if (xDirection != 0 && synthesizeNewKeys) { 3418 mLastJoystickXKeyCode = xDirection > 0 3419 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3420 enqueueInputEvent(new KeyEvent(time, time, 3421 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3422 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3423 } 3424 } 3425 3426 if (yDirection != mLastJoystickYDirection) { 3427 if (mLastJoystickYKeyCode != 0) { 3428 enqueueInputEvent(new KeyEvent(time, time, 3429 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3430 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3431 mLastJoystickYKeyCode = 0; 3432 } 3433 3434 mLastJoystickYDirection = yDirection; 3435 3436 if (yDirection != 0 && synthesizeNewKeys) { 3437 mLastJoystickYKeyCode = yDirection > 0 3438 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3439 enqueueInputEvent(new KeyEvent(time, time, 3440 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3441 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3442 } 3443 } 3444 } 3445 3446 private static int joystickAxisValueToDirection(float value) { 3447 if (value >= 0.5f) { 3448 return 1; 3449 } else if (value <= -0.5f) { 3450 return -1; 3451 } else { 3452 return 0; 3453 } 3454 } 3455 3456 /** 3457 * Returns true if the key is used for keyboard navigation. 3458 * @param keyEvent The key event. 3459 * @return True if the key is used for keyboard navigation. 3460 */ 3461 private static boolean isNavigationKey(KeyEvent keyEvent) { 3462 switch (keyEvent.getKeyCode()) { 3463 case KeyEvent.KEYCODE_DPAD_LEFT: 3464 case KeyEvent.KEYCODE_DPAD_RIGHT: 3465 case KeyEvent.KEYCODE_DPAD_UP: 3466 case KeyEvent.KEYCODE_DPAD_DOWN: 3467 case KeyEvent.KEYCODE_DPAD_CENTER: 3468 case KeyEvent.KEYCODE_PAGE_UP: 3469 case KeyEvent.KEYCODE_PAGE_DOWN: 3470 case KeyEvent.KEYCODE_MOVE_HOME: 3471 case KeyEvent.KEYCODE_MOVE_END: 3472 case KeyEvent.KEYCODE_TAB: 3473 case KeyEvent.KEYCODE_SPACE: 3474 case KeyEvent.KEYCODE_ENTER: 3475 return true; 3476 } 3477 return false; 3478 } 3479 3480 /** 3481 * Returns true if the key is used for typing. 3482 * @param keyEvent The key event. 3483 * @return True if the key is used for typing. 3484 */ 3485 private static boolean isTypingKey(KeyEvent keyEvent) { 3486 return keyEvent.getUnicodeChar() > 0; 3487 } 3488 3489 /** 3490 * See if the key event means we should leave touch mode (and leave touch mode if so). 3491 * @param event The key event. 3492 * @return Whether this key event should be consumed (meaning the act of 3493 * leaving touch mode alone is considered the event). 3494 */ 3495 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3496 // Only relevant in touch mode. 3497 if (!mAttachInfo.mInTouchMode) { 3498 return false; 3499 } 3500 3501 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3502 final int action = event.getAction(); 3503 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3504 return false; 3505 } 3506 3507 // Don't leave touch mode if the IME told us not to. 3508 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3509 return false; 3510 } 3511 3512 // If the key can be used for keyboard navigation then leave touch mode 3513 // and select a focused view if needed (in ensureTouchMode). 3514 // When a new focused view is selected, we consume the navigation key because 3515 // navigation doesn't make much sense unless a view already has focus so 3516 // the key's purpose is to set focus. 3517 if (isNavigationKey(event)) { 3518 return ensureTouchMode(false); 3519 } 3520 3521 // If the key can be used for typing then leave touch mode 3522 // and select a focused view if needed (in ensureTouchMode). 3523 // Always allow the view to process the typing key. 3524 if (isTypingKey(event)) { 3525 ensureTouchMode(false); 3526 return false; 3527 } 3528 3529 return false; 3530 } 3531 3532 private void deliverKeyEvent(QueuedInputEvent q) { 3533 final KeyEvent event = (KeyEvent)q.mEvent; 3534 if (mInputEventConsistencyVerifier != null) { 3535 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3536 } 3537 3538 if ((q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3539 // If there is no view, then the event will not be handled. 3540 if (mView == null || !mAdded) { 3541 finishInputEvent(q, false); 3542 return; 3543 } 3544 3545 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3546 3547 // Perform predispatching before the IME. 3548 if (mView.dispatchKeyEventPreIme(event)) { 3549 finishInputEvent(q, true); 3550 return; 3551 } 3552 3553 // Dispatch to the IME before propagating down the view hierarchy. 3554 // The IME will eventually call back into handleImeFinishedEvent. 3555 if (mLastWasImTarget) { 3556 InputMethodManager imm = InputMethodManager.peekInstance(); 3557 if (imm != null) { 3558 final int seq = event.getSequenceNumber(); 3559 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3560 + seq + " event=" + event); 3561 imm.dispatchKeyEvent(mView.getContext(), seq, event, mInputMethodCallback); 3562 return; 3563 } 3564 } 3565 } 3566 3567 // Not dispatching to IME, continue with post IME actions. 3568 deliverKeyEventPostIme(q); 3569 } 3570 3571 void handleImeFinishedEvent(int seq, boolean handled) { 3572 final QueuedInputEvent q = mCurrentInputEvent; 3573 if (q != null && q.mEvent.getSequenceNumber() == seq) { 3574 final KeyEvent event = (KeyEvent)q.mEvent; 3575 if (DEBUG_IMF) { 3576 Log.v(TAG, "IME finished event: seq=" + seq 3577 + " handled=" + handled + " event=" + event); 3578 } 3579 if (handled) { 3580 finishInputEvent(q, true); 3581 } else { 3582 deliverKeyEventPostIme(q); 3583 } 3584 } else { 3585 if (DEBUG_IMF) { 3586 Log.v(TAG, "IME finished event: seq=" + seq 3587 + " handled=" + handled + ", event not found!"); 3588 } 3589 } 3590 } 3591 3592 private void deliverKeyEventPostIme(QueuedInputEvent q) { 3593 final KeyEvent event = (KeyEvent)q.mEvent; 3594 if (ViewDebug.DEBUG_LATENCY) { 3595 q.mDeliverPostImeTimeNanos = System.nanoTime(); 3596 } 3597 3598 // If the view went away, then the event will not be handled. 3599 if (mView == null || !mAdded) { 3600 finishInputEvent(q, false); 3601 return; 3602 } 3603 3604 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3605 if (checkForLeavingTouchModeAndConsume(event)) { 3606 finishInputEvent(q, true); 3607 return; 3608 } 3609 3610 // Make sure the fallback event policy sees all keys that will be delivered to the 3611 // view hierarchy. 3612 mFallbackEventHandler.preDispatchKeyEvent(event); 3613 3614 // Deliver the key to the view hierarchy. 3615 if (mView.dispatchKeyEvent(event)) { 3616 finishInputEvent(q, true); 3617 return; 3618 } 3619 3620 // If the Control modifier is held, try to interpret the key as a shortcut. 3621 if (event.getAction() == KeyEvent.ACTION_DOWN 3622 && event.isCtrlPressed() 3623 && event.getRepeatCount() == 0 3624 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3625 if (mView.dispatchKeyShortcutEvent(event)) { 3626 finishInputEvent(q, true); 3627 return; 3628 } 3629 } 3630 3631 // Apply the fallback event policy. 3632 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3633 finishInputEvent(q, true); 3634 return; 3635 } 3636 3637 // Handle automatic focus changes. 3638 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3639 int direction = 0; 3640 switch (event.getKeyCode()) { 3641 case KeyEvent.KEYCODE_DPAD_LEFT: 3642 if (event.hasNoModifiers()) { 3643 direction = View.FOCUS_LEFT; 3644 } 3645 break; 3646 case KeyEvent.KEYCODE_DPAD_RIGHT: 3647 if (event.hasNoModifiers()) { 3648 direction = View.FOCUS_RIGHT; 3649 } 3650 break; 3651 case KeyEvent.KEYCODE_DPAD_UP: 3652 if (event.hasNoModifiers()) { 3653 direction = View.FOCUS_UP; 3654 } 3655 break; 3656 case KeyEvent.KEYCODE_DPAD_DOWN: 3657 if (event.hasNoModifiers()) { 3658 direction = View.FOCUS_DOWN; 3659 } 3660 break; 3661 case KeyEvent.KEYCODE_TAB: 3662 if (event.hasNoModifiers()) { 3663 direction = View.FOCUS_FORWARD; 3664 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3665 direction = View.FOCUS_BACKWARD; 3666 } 3667 break; 3668 } 3669 if (direction != 0) { 3670 View focused = mView.findFocus(); 3671 if (focused != null) { 3672 View v = focused.focusSearch(direction); 3673 if (v != null && v != focused) { 3674 // do the math the get the interesting rect 3675 // of previous focused into the coord system of 3676 // newly focused view 3677 focused.getFocusedRect(mTempRect); 3678 if (mView instanceof ViewGroup) { 3679 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3680 focused, mTempRect); 3681 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3682 v, mTempRect); 3683 } 3684 if (v.requestFocus(direction, mTempRect)) { 3685 playSoundEffect(SoundEffectConstants 3686 .getContantForFocusDirection(direction)); 3687 finishInputEvent(q, true); 3688 return; 3689 } 3690 } 3691 3692 // Give the focused view a last chance to handle the dpad key. 3693 if (mView.dispatchUnhandledMove(focused, direction)) { 3694 finishInputEvent(q, true); 3695 return; 3696 } 3697 } 3698 } 3699 } 3700 3701 // Key was unhandled. 3702 finishInputEvent(q, false); 3703 } 3704 3705 /* drag/drop */ 3706 void setLocalDragState(Object obj) { 3707 mLocalDragState = obj; 3708 } 3709 3710 private void handleDragEvent(DragEvent event) { 3711 // From the root, only drag start/end/location are dispatched. entered/exited 3712 // are determined and dispatched by the viewgroup hierarchy, who then report 3713 // that back here for ultimate reporting back to the framework. 3714 if (mView != null && mAdded) { 3715 final int what = event.mAction; 3716 3717 if (what == DragEvent.ACTION_DRAG_EXITED) { 3718 // A direct EXITED event means that the window manager knows we've just crossed 3719 // a window boundary, so the current drag target within this one must have 3720 // just been exited. Send it the usual notifications and then we're done 3721 // for now. 3722 mView.dispatchDragEvent(event); 3723 } else { 3724 // Cache the drag description when the operation starts, then fill it in 3725 // on subsequent calls as a convenience 3726 if (what == DragEvent.ACTION_DRAG_STARTED) { 3727 mCurrentDragView = null; // Start the current-recipient tracking 3728 mDragDescription = event.mClipDescription; 3729 } else { 3730 event.mClipDescription = mDragDescription; 3731 } 3732 3733 // For events with a [screen] location, translate into window coordinates 3734 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3735 mDragPoint.set(event.mX, event.mY); 3736 if (mTranslator != null) { 3737 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3738 } 3739 3740 if (mCurScrollY != 0) { 3741 mDragPoint.offset(0, mCurScrollY); 3742 } 3743 3744 event.mX = mDragPoint.x; 3745 event.mY = mDragPoint.y; 3746 } 3747 3748 // Remember who the current drag target is pre-dispatch 3749 final View prevDragView = mCurrentDragView; 3750 3751 // Now dispatch the drag/drop event 3752 boolean result = mView.dispatchDragEvent(event); 3753 3754 // If we changed apparent drag target, tell the OS about it 3755 if (prevDragView != mCurrentDragView) { 3756 try { 3757 if (prevDragView != null) { 3758 sWindowSession.dragRecipientExited(mWindow); 3759 } 3760 if (mCurrentDragView != null) { 3761 sWindowSession.dragRecipientEntered(mWindow); 3762 } 3763 } catch (RemoteException e) { 3764 Slog.e(TAG, "Unable to note drag target change"); 3765 } 3766 } 3767 3768 // Report the drop result when we're done 3769 if (what == DragEvent.ACTION_DROP) { 3770 mDragDescription = null; 3771 try { 3772 Log.i(TAG, "Reporting drop result: " + result); 3773 sWindowSession.reportDropResult(mWindow, result); 3774 } catch (RemoteException e) { 3775 Log.e(TAG, "Unable to report drop result"); 3776 } 3777 } 3778 3779 // When the drag operation ends, release any local state object 3780 // that may have been in use 3781 if (what == DragEvent.ACTION_DRAG_ENDED) { 3782 setLocalDragState(null); 3783 } 3784 } 3785 } 3786 event.recycle(); 3787 } 3788 3789 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 3790 if (mSeq != args.seq) { 3791 // The sequence has changed, so we need to update our value and make 3792 // sure to do a traversal afterward so the window manager is given our 3793 // most recent data. 3794 mSeq = args.seq; 3795 mAttachInfo.mForceReportNewAttributes = true; 3796 scheduleTraversals(); 3797 } 3798 if (mView == null) return; 3799 if (args.localChanges != 0) { 3800 if (mAttachInfo != null) { 3801 mAttachInfo.mRecomputeGlobalAttributes = true; 3802 } 3803 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 3804 scheduleTraversals(); 3805 } 3806 mView.dispatchSystemUiVisibilityChanged(args.globalVisibility); 3807 } 3808 3809 public void handleDispatchDoneAnimating() { 3810 if (mWindowsAnimating) { 3811 mWindowsAnimating = false; 3812 if (!mDirty.isEmpty() || mIsAnimating) { 3813 scheduleTraversals(); 3814 } 3815 } 3816 } 3817 3818 public void getLastTouchPoint(Point outLocation) { 3819 outLocation.x = (int) mLastTouchPoint.x; 3820 outLocation.y = (int) mLastTouchPoint.y; 3821 } 3822 3823 public void setDragFocus(View newDragTarget) { 3824 if (mCurrentDragView != newDragTarget) { 3825 mCurrentDragView = newDragTarget; 3826 } 3827 } 3828 3829 private AudioManager getAudioManager() { 3830 if (mView == null) { 3831 throw new IllegalStateException("getAudioManager called when there is no mView"); 3832 } 3833 if (mAudioManager == null) { 3834 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 3835 } 3836 return mAudioManager; 3837 } 3838 3839 public AccessibilityInteractionController getAccessibilityInteractionController() { 3840 if (mView == null) { 3841 throw new IllegalStateException("getAccessibilityInteractionController" 3842 + " called when there is no mView"); 3843 } 3844 if (mAccessibilityInteractionController == null) { 3845 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 3846 } 3847 return mAccessibilityInteractionController; 3848 } 3849 3850 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 3851 boolean insetsPending) throws RemoteException { 3852 3853 float appScale = mAttachInfo.mApplicationScale; 3854 boolean restore = false; 3855 if (params != null && mTranslator != null) { 3856 restore = true; 3857 params.backup(); 3858 mTranslator.translateWindowLayout(params); 3859 } 3860 if (params != null) { 3861 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 3862 } 3863 mPendingConfiguration.seq = 0; 3864 //Log.d(TAG, ">>>>>> CALLING relayout"); 3865 if (params != null && mOrigWindowType != params.type) { 3866 // For compatibility with old apps, don't crash here. 3867 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 3868 Slog.w(TAG, "Window type can not be changed after " 3869 + "the window is added; ignoring change of " + mView); 3870 params.type = mOrigWindowType; 3871 } 3872 } 3873 int relayoutResult = sWindowSession.relayout( 3874 mWindow, mSeq, params, 3875 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 3876 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 3877 viewVisibility, insetsPending ? WindowManagerImpl.RELAYOUT_INSETS_PENDING : 0, 3878 mWinFrame, mPendingSystemInsets, mPendingContentInsets, mPendingVisibleInsets, 3879 mPendingConfiguration, mSurface); 3880 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 3881 if (restore) { 3882 params.restore(); 3883 } 3884 3885 if (mTranslator != null) { 3886 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 3887 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 3888 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 3889 } 3890 return relayoutResult; 3891 } 3892 3893 /** 3894 * {@inheritDoc} 3895 */ 3896 public void playSoundEffect(int effectId) { 3897 checkThread(); 3898 3899 try { 3900 final AudioManager audioManager = getAudioManager(); 3901 3902 switch (effectId) { 3903 case SoundEffectConstants.CLICK: 3904 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 3905 return; 3906 case SoundEffectConstants.NAVIGATION_DOWN: 3907 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 3908 return; 3909 case SoundEffectConstants.NAVIGATION_LEFT: 3910 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 3911 return; 3912 case SoundEffectConstants.NAVIGATION_RIGHT: 3913 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 3914 return; 3915 case SoundEffectConstants.NAVIGATION_UP: 3916 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 3917 return; 3918 default: 3919 throw new IllegalArgumentException("unknown effect id " + effectId + 3920 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 3921 } 3922 } catch (IllegalStateException e) { 3923 // Exception thrown by getAudioManager() when mView is null 3924 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 3925 e.printStackTrace(); 3926 } 3927 } 3928 3929 /** 3930 * {@inheritDoc} 3931 */ 3932 public boolean performHapticFeedback(int effectId, boolean always) { 3933 try { 3934 return sWindowSession.performHapticFeedback(mWindow, effectId, always); 3935 } catch (RemoteException e) { 3936 return false; 3937 } 3938 } 3939 3940 /** 3941 * {@inheritDoc} 3942 */ 3943 public View focusSearch(View focused, int direction) { 3944 checkThread(); 3945 if (!(mView instanceof ViewGroup)) { 3946 return null; 3947 } 3948 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 3949 } 3950 3951 public void debug() { 3952 mView.debug(); 3953 } 3954 3955 public void dumpGfxInfo(int[] info) { 3956 if (mView != null) { 3957 getGfxInfo(mView, info); 3958 } else { 3959 info[0] = info[1] = 0; 3960 } 3961 } 3962 3963 private static void getGfxInfo(View view, int[] info) { 3964 DisplayList displayList = view.mDisplayList; 3965 info[0]++; 3966 if (displayList != null) { 3967 info[1] += displayList.getSize(); 3968 } 3969 3970 if (view instanceof ViewGroup) { 3971 ViewGroup group = (ViewGroup) view; 3972 3973 int count = group.getChildCount(); 3974 for (int i = 0; i < count; i++) { 3975 getGfxInfo(group.getChildAt(i), info); 3976 } 3977 } 3978 } 3979 3980 public void die(boolean immediate) { 3981 if (immediate) { 3982 doDie(); 3983 } else { 3984 if (!mIsDrawing) { 3985 destroyHardwareRenderer(); 3986 } else { 3987 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 3988 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 3989 } 3990 mHandler.sendEmptyMessage(MSG_DIE); 3991 } 3992 } 3993 3994 void doDie() { 3995 checkThread(); 3996 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 3997 synchronized (this) { 3998 if (mAdded) { 3999 dispatchDetachedFromWindow(); 4000 } 4001 4002 if (mAdded && !mFirst) { 4003 destroyHardwareRenderer(); 4004 4005 if (mView != null) { 4006 int viewVisibility = mView.getVisibility(); 4007 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4008 if (mWindowAttributesChanged || viewVisibilityChanged) { 4009 // If layout params have been changed, first give them 4010 // to the window manager to make sure it has the correct 4011 // animation info. 4012 try { 4013 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4014 & WindowManagerImpl.RELAYOUT_RES_FIRST_TIME) != 0) { 4015 sWindowSession.finishDrawing(mWindow); 4016 } 4017 } catch (RemoteException e) { 4018 } 4019 } 4020 4021 mSurface.release(); 4022 } 4023 } 4024 4025 mAdded = false; 4026 } 4027 } 4028 4029 public void requestUpdateConfiguration(Configuration config) { 4030 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4031 mHandler.sendMessage(msg); 4032 } 4033 4034 public void loadSystemProperties() { 4035 boolean layout = SystemProperties.getBoolean( 4036 View.DEBUG_LAYOUT_PROPERTY, false); 4037 if (layout != mAttachInfo.mDebugLayout) { 4038 mAttachInfo.mDebugLayout = layout; 4039 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4040 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4041 } 4042 } 4043 } 4044 4045 private void destroyHardwareRenderer() { 4046 AttachInfo attachInfo = mAttachInfo; 4047 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4048 4049 if (hardwareRenderer != null) { 4050 if (mView != null) { 4051 hardwareRenderer.destroyHardwareResources(mView); 4052 } 4053 hardwareRenderer.destroy(true); 4054 hardwareRenderer.setRequested(false); 4055 4056 attachInfo.mHardwareRenderer = null; 4057 attachInfo.mHardwareAccelerated = false; 4058 } 4059 } 4060 4061 void dispatchImeFinishedEvent(int seq, boolean handled) { 4062 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4063 msg.arg1 = seq; 4064 msg.arg2 = handled ? 1 : 0; 4065 msg.setAsynchronous(true); 4066 mHandler.sendMessage(msg); 4067 } 4068 4069 public void dispatchFinishInputConnection(InputConnection connection) { 4070 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4071 mHandler.sendMessage(msg); 4072 } 4073 4074 public void dispatchResized(int w, int h, Rect systemInsets, Rect contentInsets, 4075 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4076 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": w=" + w 4077 + " h=" + h + " systemInsets=" + systemInsets.toShortString() 4078 + " contentInsets=" + contentInsets.toShortString() 4079 + " visibleInsets=" + visibleInsets.toShortString() 4080 + " reportDraw=" + reportDraw); 4081 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT :MSG_RESIZED); 4082 if (mTranslator != null) { 4083 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4084 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4085 w *= mTranslator.applicationInvertedScale; 4086 h *= mTranslator.applicationInvertedScale; 4087 } 4088 msg.arg1 = w; 4089 msg.arg2 = h; 4090 ResizedInfo ri = new ResizedInfo(); 4091 ri.systemInsets = new Rect(systemInsets); 4092 ri.contentInsets = new Rect(contentInsets); 4093 ri.visibleInsets = new Rect(visibleInsets); 4094 ri.newConfig = newConfig; 4095 msg.obj = ri; 4096 mHandler.sendMessage(msg); 4097 } 4098 4099 /** 4100 * Represents a pending input event that is waiting in a queue. 4101 * 4102 * Input events are processed in serial order by the timestamp specified by 4103 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4104 * one input event to the application at a time and waits for the application 4105 * to finish handling it before delivering the next one. 4106 * 4107 * However, because the application or IME can synthesize and inject multiple 4108 * key events at a time without going through the input dispatcher, we end up 4109 * needing a queue on the application's side. 4110 */ 4111 private static final class QueuedInputEvent { 4112 public static final int FLAG_DELIVER_POST_IME = 1; 4113 4114 public QueuedInputEvent mNext; 4115 4116 public InputEvent mEvent; 4117 public InputEventReceiver mReceiver; 4118 public int mFlags; 4119 4120 // Used for latency calculations. 4121 public long mReceiveTimeNanos; 4122 public long mDeliverTimeNanos; 4123 public long mDeliverPostImeTimeNanos; 4124 } 4125 4126 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4127 InputEventReceiver receiver, int flags) { 4128 QueuedInputEvent q = mQueuedInputEventPool; 4129 if (q != null) { 4130 mQueuedInputEventPoolSize -= 1; 4131 mQueuedInputEventPool = q.mNext; 4132 q.mNext = null; 4133 } else { 4134 q = new QueuedInputEvent(); 4135 } 4136 4137 q.mEvent = event; 4138 q.mReceiver = receiver; 4139 q.mFlags = flags; 4140 return q; 4141 } 4142 4143 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4144 q.mEvent = null; 4145 q.mReceiver = null; 4146 4147 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4148 mQueuedInputEventPoolSize += 1; 4149 q.mNext = mQueuedInputEventPool; 4150 mQueuedInputEventPool = q; 4151 } 4152 } 4153 4154 void enqueueInputEvent(InputEvent event) { 4155 enqueueInputEvent(event, null, 0, false); 4156 } 4157 4158 void enqueueInputEvent(InputEvent event, 4159 InputEventReceiver receiver, int flags, boolean processImmediately) { 4160 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4161 4162 if (ViewDebug.DEBUG_LATENCY) { 4163 q.mReceiveTimeNanos = System.nanoTime(); 4164 q.mDeliverTimeNanos = 0; 4165 q.mDeliverPostImeTimeNanos = 0; 4166 } 4167 4168 // Always enqueue the input event in order, regardless of its time stamp. 4169 // We do this because the application or the IME may inject key events 4170 // in response to touch events and we want to ensure that the injected keys 4171 // are processed in the order they were received and we cannot trust that 4172 // the time stamp of injected events are monotonic. 4173 QueuedInputEvent last = mFirstPendingInputEvent; 4174 if (last == null) { 4175 mFirstPendingInputEvent = q; 4176 } else { 4177 while (last.mNext != null) { 4178 last = last.mNext; 4179 } 4180 last.mNext = q; 4181 } 4182 4183 if (processImmediately) { 4184 doProcessInputEvents(); 4185 } else { 4186 scheduleProcessInputEvents(); 4187 } 4188 } 4189 4190 private void scheduleProcessInputEvents() { 4191 if (!mProcessInputEventsScheduled) { 4192 mProcessInputEventsScheduled = true; 4193 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4194 msg.setAsynchronous(true); 4195 mHandler.sendMessage(msg); 4196 } 4197 } 4198 4199 void doProcessInputEvents() { 4200 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4201 QueuedInputEvent q = mFirstPendingInputEvent; 4202 mFirstPendingInputEvent = q.mNext; 4203 q.mNext = null; 4204 mCurrentInputEvent = q; 4205 deliverInputEvent(q); 4206 } 4207 4208 // We are done processing all input events that we can process right now 4209 // so we can clear the pending flag immediately. 4210 if (mProcessInputEventsScheduled) { 4211 mProcessInputEventsScheduled = false; 4212 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4213 } 4214 } 4215 4216 private void finishInputEvent(QueuedInputEvent q, boolean handled) { 4217 if (q != mCurrentInputEvent) { 4218 throw new IllegalStateException("finished input event out of order"); 4219 } 4220 4221 if (ViewDebug.DEBUG_LATENCY) { 4222 final long now = System.nanoTime(); 4223 final long eventTime = q.mEvent.getEventTimeNano(); 4224 final StringBuilder msg = new StringBuilder(); 4225 msg.append("Spent "); 4226 msg.append((now - q.mReceiveTimeNanos) * 0.000001f); 4227 msg.append("ms processing "); 4228 if (q.mEvent instanceof KeyEvent) { 4229 final KeyEvent keyEvent = (KeyEvent)q.mEvent; 4230 msg.append("key event, action="); 4231 msg.append(KeyEvent.actionToString(keyEvent.getAction())); 4232 } else { 4233 final MotionEvent motionEvent = (MotionEvent)q.mEvent; 4234 msg.append("motion event, action="); 4235 msg.append(MotionEvent.actionToString(motionEvent.getAction())); 4236 msg.append(", historySize="); 4237 msg.append(motionEvent.getHistorySize()); 4238 } 4239 msg.append(", handled="); 4240 msg.append(handled); 4241 msg.append(", received at +"); 4242 msg.append((q.mReceiveTimeNanos - eventTime) * 0.000001f); 4243 if (q.mDeliverTimeNanos != 0) { 4244 msg.append("ms, delivered at +"); 4245 msg.append((q.mDeliverTimeNanos - eventTime) * 0.000001f); 4246 } 4247 if (q.mDeliverPostImeTimeNanos != 0) { 4248 msg.append("ms, delivered post IME at +"); 4249 msg.append((q.mDeliverPostImeTimeNanos - eventTime) * 0.000001f); 4250 } 4251 msg.append("ms, finished at +"); 4252 msg.append((now - eventTime) * 0.000001f); 4253 msg.append("ms."); 4254 Log.d(ViewDebug.DEBUG_LATENCY_TAG, msg.toString()); 4255 } 4256 4257 if (q.mReceiver != null) { 4258 q.mReceiver.finishInputEvent(q.mEvent, handled); 4259 } else { 4260 q.mEvent.recycleIfNeededAfterDispatch(); 4261 } 4262 4263 recycleQueuedInputEvent(q); 4264 4265 mCurrentInputEvent = null; 4266 if (mFirstPendingInputEvent != null) { 4267 scheduleProcessInputEvents(); 4268 } 4269 } 4270 4271 void scheduleConsumeBatchedInput() { 4272 if (!mConsumeBatchedInputScheduled) { 4273 mConsumeBatchedInputScheduled = true; 4274 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4275 mConsumedBatchedInputRunnable, null); 4276 } 4277 } 4278 4279 void unscheduleConsumeBatchedInput() { 4280 if (mConsumeBatchedInputScheduled) { 4281 mConsumeBatchedInputScheduled = false; 4282 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4283 mConsumedBatchedInputRunnable, null); 4284 } 4285 } 4286 4287 void doConsumeBatchedInput(long frameTimeNanos) { 4288 if (mConsumeBatchedInputScheduled) { 4289 mConsumeBatchedInputScheduled = false; 4290 if (mInputEventReceiver != null) { 4291 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4292 } 4293 doProcessInputEvents(); 4294 } 4295 } 4296 4297 final class TraversalRunnable implements Runnable { 4298 @Override 4299 public void run() { 4300 doTraversal(); 4301 } 4302 } 4303 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4304 4305 final class WindowInputEventReceiver extends InputEventReceiver { 4306 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4307 super(inputChannel, looper); 4308 } 4309 4310 @Override 4311 public void onInputEvent(InputEvent event) { 4312 enqueueInputEvent(event, this, 0, true); 4313 } 4314 4315 @Override 4316 public void onBatchedInputEventPending() { 4317 scheduleConsumeBatchedInput(); 4318 } 4319 4320 @Override 4321 public void dispose() { 4322 unscheduleConsumeBatchedInput(); 4323 super.dispose(); 4324 } 4325 } 4326 WindowInputEventReceiver mInputEventReceiver; 4327 4328 final class ConsumeBatchedInputRunnable implements Runnable { 4329 @Override 4330 public void run() { 4331 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4332 } 4333 } 4334 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4335 new ConsumeBatchedInputRunnable(); 4336 boolean mConsumeBatchedInputScheduled; 4337 4338 final class InvalidateOnAnimationRunnable implements Runnable { 4339 private boolean mPosted; 4340 private ArrayList<View> mViews = new ArrayList<View>(); 4341 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4342 new ArrayList<AttachInfo.InvalidateInfo>(); 4343 private View[] mTempViews; 4344 private AttachInfo.InvalidateInfo[] mTempViewRects; 4345 4346 public void addView(View view) { 4347 synchronized (this) { 4348 mViews.add(view); 4349 postIfNeededLocked(); 4350 } 4351 } 4352 4353 public void addViewRect(AttachInfo.InvalidateInfo info) { 4354 synchronized (this) { 4355 mViewRects.add(info); 4356 postIfNeededLocked(); 4357 } 4358 } 4359 4360 public void removeView(View view) { 4361 synchronized (this) { 4362 mViews.remove(view); 4363 4364 for (int i = mViewRects.size(); i-- > 0; ) { 4365 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4366 if (info.target == view) { 4367 mViewRects.remove(i); 4368 info.release(); 4369 } 4370 } 4371 4372 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4373 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4374 mPosted = false; 4375 } 4376 } 4377 } 4378 4379 @Override 4380 public void run() { 4381 final int viewCount; 4382 final int viewRectCount; 4383 synchronized (this) { 4384 mPosted = false; 4385 4386 viewCount = mViews.size(); 4387 if (viewCount != 0) { 4388 mTempViews = mViews.toArray(mTempViews != null 4389 ? mTempViews : new View[viewCount]); 4390 mViews.clear(); 4391 } 4392 4393 viewRectCount = mViewRects.size(); 4394 if (viewRectCount != 0) { 4395 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4396 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4397 mViewRects.clear(); 4398 } 4399 } 4400 4401 for (int i = 0; i < viewCount; i++) { 4402 mTempViews[i].invalidate(); 4403 } 4404 4405 for (int i = 0; i < viewRectCount; i++) { 4406 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4407 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4408 info.release(); 4409 } 4410 } 4411 4412 private void postIfNeededLocked() { 4413 if (!mPosted) { 4414 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4415 mPosted = true; 4416 } 4417 } 4418 } 4419 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4420 new InvalidateOnAnimationRunnable(); 4421 4422 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4423 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4424 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4425 } 4426 4427 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4428 long delayMilliseconds) { 4429 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4430 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4431 } 4432 4433 public void dispatchInvalidateOnAnimation(View view) { 4434 mInvalidateOnAnimationRunnable.addView(view); 4435 } 4436 4437 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4438 mInvalidateOnAnimationRunnable.addViewRect(info); 4439 } 4440 4441 public void enqueueDisplayList(DisplayList displayList) { 4442 mDisplayLists.add(displayList); 4443 4444 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4445 Message msg = mHandler.obtainMessage(MSG_INVALIDATE_DISPLAY_LIST); 4446 mHandler.sendMessage(msg); 4447 } 4448 4449 public void dequeueDisplayList(DisplayList displayList) { 4450 if (mDisplayLists.remove(displayList)) { 4451 displayList.invalidate(); 4452 if (mDisplayLists.size() == 0) { 4453 mHandler.removeMessages(MSG_INVALIDATE_DISPLAY_LIST); 4454 } 4455 } 4456 } 4457 4458 public void cancelInvalidate(View view) { 4459 mHandler.removeMessages(MSG_INVALIDATE, view); 4460 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4461 // them to the pool 4462 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4463 mInvalidateOnAnimationRunnable.removeView(view); 4464 } 4465 4466 public void dispatchKey(KeyEvent event) { 4467 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4468 msg.setAsynchronous(true); 4469 mHandler.sendMessage(msg); 4470 } 4471 4472 public void dispatchKeyFromIme(KeyEvent event) { 4473 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4474 msg.setAsynchronous(true); 4475 mHandler.sendMessage(msg); 4476 } 4477 4478 public void dispatchUnhandledKey(KeyEvent event) { 4479 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4480 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4481 final int keyCode = event.getKeyCode(); 4482 final int metaState = event.getMetaState(); 4483 4484 KeyEvent fallbackEvent = null; 4485 synchronized (mFallbackAction) { 4486 // Check for fallback actions specified by the key character map. 4487 if (kcm.getFallbackAction(keyCode, metaState, mFallbackAction)) { 4488 int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4489 fallbackEvent = KeyEvent.obtain( 4490 event.getDownTime(), event.getEventTime(), 4491 event.getAction(), mFallbackAction.keyCode, 4492 event.getRepeatCount(), mFallbackAction.metaState, 4493 event.getDeviceId(), event.getScanCode(), 4494 flags, event.getSource(), null); 4495 } 4496 } 4497 if (fallbackEvent != null) { 4498 dispatchKey(fallbackEvent); 4499 } 4500 } 4501 } 4502 4503 public void dispatchAppVisibility(boolean visible) { 4504 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4505 msg.arg1 = visible ? 1 : 0; 4506 mHandler.sendMessage(msg); 4507 } 4508 4509 public void dispatchScreenStateChange(boolean on) { 4510 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4511 msg.arg1 = on ? 1 : 0; 4512 mHandler.sendMessage(msg); 4513 } 4514 4515 public void dispatchGetNewSurface() { 4516 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4517 mHandler.sendMessage(msg); 4518 } 4519 4520 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4521 Message msg = Message.obtain(); 4522 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4523 msg.arg1 = hasFocus ? 1 : 0; 4524 msg.arg2 = inTouchMode ? 1 : 0; 4525 mHandler.sendMessage(msg); 4526 } 4527 4528 public void dispatchCloseSystemDialogs(String reason) { 4529 Message msg = Message.obtain(); 4530 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4531 msg.obj = reason; 4532 mHandler.sendMessage(msg); 4533 } 4534 4535 public void dispatchDragEvent(DragEvent event) { 4536 final int what; 4537 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4538 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4539 mHandler.removeMessages(what); 4540 } else { 4541 what = MSG_DISPATCH_DRAG_EVENT; 4542 } 4543 Message msg = mHandler.obtainMessage(what, event); 4544 mHandler.sendMessage(msg); 4545 } 4546 4547 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4548 int localValue, int localChanges) { 4549 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4550 args.seq = seq; 4551 args.globalVisibility = globalVisibility; 4552 args.localValue = localValue; 4553 args.localChanges = localChanges; 4554 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4555 } 4556 4557 public void dispatchDoneAnimating() { 4558 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4559 } 4560 4561 public void dispatchCheckFocus() { 4562 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4563 // This will result in a call to checkFocus() below. 4564 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4565 } 4566 } 4567 4568 /** 4569 * Post a callback to send a 4570 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4571 * This event is send at most once every 4572 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4573 */ 4574 private void postSendWindowContentChangedCallback(View source) { 4575 if (mSendWindowContentChangedAccessibilityEvent == null) { 4576 mSendWindowContentChangedAccessibilityEvent = 4577 new SendWindowContentChangedAccessibilityEvent(); 4578 } 4579 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4580 if (oldSource == null) { 4581 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4582 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4583 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4584 } else { 4585 mSendWindowContentChangedAccessibilityEvent.mSource = 4586 getCommonPredecessor(oldSource, source); 4587 } 4588 } 4589 4590 /** 4591 * Remove a posted callback to send a 4592 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4593 */ 4594 private void removeSendWindowContentChangedCallback() { 4595 if (mSendWindowContentChangedAccessibilityEvent != null) { 4596 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4597 } 4598 } 4599 4600 public boolean showContextMenuForChild(View originalView) { 4601 return false; 4602 } 4603 4604 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4605 return null; 4606 } 4607 4608 public void createContextMenu(ContextMenu menu) { 4609 } 4610 4611 public void childDrawableStateChanged(View child) { 4612 } 4613 4614 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4615 if (mView == null) { 4616 return false; 4617 } 4618 mAccessibilityManager.sendAccessibilityEvent(event); 4619 return true; 4620 } 4621 4622 @Override 4623 public void childAccessibilityStateChanged(View child) { 4624 postSendWindowContentChangedCallback(child); 4625 } 4626 4627 private View getCommonPredecessor(View first, View second) { 4628 if (mAttachInfo != null) { 4629 if (mTempHashSet == null) { 4630 mTempHashSet = new HashSet<View>(); 4631 } 4632 HashSet<View> seen = mTempHashSet; 4633 seen.clear(); 4634 View firstCurrent = first; 4635 while (firstCurrent != null) { 4636 seen.add(firstCurrent); 4637 ViewParent firstCurrentParent = firstCurrent.mParent; 4638 if (firstCurrentParent instanceof View) { 4639 firstCurrent = (View) firstCurrentParent; 4640 } else { 4641 firstCurrent = null; 4642 } 4643 } 4644 View secondCurrent = second; 4645 while (secondCurrent != null) { 4646 if (seen.contains(secondCurrent)) { 4647 seen.clear(); 4648 return secondCurrent; 4649 } 4650 ViewParent secondCurrentParent = secondCurrent.mParent; 4651 if (secondCurrentParent instanceof View) { 4652 secondCurrent = (View) secondCurrentParent; 4653 } else { 4654 secondCurrent = null; 4655 } 4656 } 4657 seen.clear(); 4658 } 4659 return null; 4660 } 4661 4662 void checkThread() { 4663 if (mThread != Thread.currentThread()) { 4664 throw new CalledFromWrongThreadException( 4665 "Only the original thread that created a view hierarchy can touch its views."); 4666 } 4667 } 4668 4669 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 4670 // ViewAncestor never intercepts touch event, so this can be a no-op 4671 } 4672 4673 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, 4674 boolean immediate) { 4675 return scrollToRectOrFocus(rectangle, immediate); 4676 } 4677 4678 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 4679 // Do nothing. 4680 } 4681 4682 class TakenSurfaceHolder extends BaseSurfaceHolder { 4683 @Override 4684 public boolean onAllowLockCanvas() { 4685 return mDrawingAllowed; 4686 } 4687 4688 @Override 4689 public void onRelayoutContainer() { 4690 // Not currently interesting -- from changing between fixed and layout size. 4691 } 4692 4693 public void setFormat(int format) { 4694 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 4695 } 4696 4697 public void setType(int type) { 4698 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 4699 } 4700 4701 @Override 4702 public void onUpdateSurface() { 4703 // We take care of format and type changes on our own. 4704 throw new IllegalStateException("Shouldn't be here"); 4705 } 4706 4707 public boolean isCreating() { 4708 return mIsCreating; 4709 } 4710 4711 @Override 4712 public void setFixedSize(int width, int height) { 4713 throw new UnsupportedOperationException( 4714 "Currently only support sizing from layout"); 4715 } 4716 4717 public void setKeepScreenOn(boolean screenOn) { 4718 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 4719 } 4720 } 4721 4722 static class InputMethodCallback extends IInputMethodCallback.Stub { 4723 private WeakReference<ViewRootImpl> mViewAncestor; 4724 4725 public InputMethodCallback(ViewRootImpl viewAncestor) { 4726 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4727 } 4728 4729 public void finishedEvent(int seq, boolean handled) { 4730 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4731 if (viewAncestor != null) { 4732 viewAncestor.dispatchImeFinishedEvent(seq, handled); 4733 } 4734 } 4735 4736 public void sessionCreated(IInputMethodSession session) { 4737 // Stub -- not for use in the client. 4738 } 4739 } 4740 4741 static class W extends IWindow.Stub { 4742 private final WeakReference<ViewRootImpl> mViewAncestor; 4743 4744 W(ViewRootImpl viewAncestor) { 4745 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 4746 } 4747 4748 public void resized(int w, int h, Rect systemInsets, Rect contentInsets, 4749 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4750 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4751 if (viewAncestor != null) { 4752 viewAncestor.dispatchResized(w, h, systemInsets, contentInsets, 4753 visibleInsets, reportDraw, newConfig); 4754 } 4755 } 4756 4757 public void dispatchAppVisibility(boolean visible) { 4758 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4759 if (viewAncestor != null) { 4760 viewAncestor.dispatchAppVisibility(visible); 4761 } 4762 } 4763 4764 public void dispatchScreenState(boolean on) { 4765 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4766 if (viewAncestor != null) { 4767 viewAncestor.dispatchScreenStateChange(on); 4768 } 4769 } 4770 4771 public void dispatchGetNewSurface() { 4772 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4773 if (viewAncestor != null) { 4774 viewAncestor.dispatchGetNewSurface(); 4775 } 4776 } 4777 4778 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4779 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4780 if (viewAncestor != null) { 4781 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 4782 } 4783 } 4784 4785 private static int checkCallingPermission(String permission) { 4786 try { 4787 return ActivityManagerNative.getDefault().checkPermission( 4788 permission, Binder.getCallingPid(), Binder.getCallingUid()); 4789 } catch (RemoteException e) { 4790 return PackageManager.PERMISSION_DENIED; 4791 } 4792 } 4793 4794 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 4795 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4796 if (viewAncestor != null) { 4797 final View view = viewAncestor.mView; 4798 if (view != null) { 4799 if (checkCallingPermission(Manifest.permission.DUMP) != 4800 PackageManager.PERMISSION_GRANTED) { 4801 throw new SecurityException("Insufficient permissions to invoke" 4802 + " executeCommand() from pid=" + Binder.getCallingPid() 4803 + ", uid=" + Binder.getCallingUid()); 4804 } 4805 4806 OutputStream clientStream = null; 4807 try { 4808 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 4809 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 4810 } catch (IOException e) { 4811 e.printStackTrace(); 4812 } finally { 4813 if (clientStream != null) { 4814 try { 4815 clientStream.close(); 4816 } catch (IOException e) { 4817 e.printStackTrace(); 4818 } 4819 } 4820 } 4821 } 4822 } 4823 } 4824 4825 public void closeSystemDialogs(String reason) { 4826 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4827 if (viewAncestor != null) { 4828 viewAncestor.dispatchCloseSystemDialogs(reason); 4829 } 4830 } 4831 4832 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 4833 boolean sync) { 4834 if (sync) { 4835 try { 4836 sWindowSession.wallpaperOffsetsComplete(asBinder()); 4837 } catch (RemoteException e) { 4838 } 4839 } 4840 } 4841 4842 public void dispatchWallpaperCommand(String action, int x, int y, 4843 int z, Bundle extras, boolean sync) { 4844 if (sync) { 4845 try { 4846 sWindowSession.wallpaperCommandComplete(asBinder(), null); 4847 } catch (RemoteException e) { 4848 } 4849 } 4850 } 4851 4852 /* Drag/drop */ 4853 public void dispatchDragEvent(DragEvent event) { 4854 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4855 if (viewAncestor != null) { 4856 viewAncestor.dispatchDragEvent(event); 4857 } 4858 } 4859 4860 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4861 int localValue, int localChanges) { 4862 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4863 if (viewAncestor != null) { 4864 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 4865 localValue, localChanges); 4866 } 4867 } 4868 4869 public void doneAnimating() { 4870 final ViewRootImpl viewAncestor = mViewAncestor.get(); 4871 if (viewAncestor != null) { 4872 viewAncestor.dispatchDoneAnimating(); 4873 } 4874 } 4875 } 4876 4877 /** 4878 * Maintains state information for a single trackball axis, generating 4879 * discrete (DPAD) movements based on raw trackball motion. 4880 */ 4881 static final class TrackballAxis { 4882 /** 4883 * The maximum amount of acceleration we will apply. 4884 */ 4885 static final float MAX_ACCELERATION = 20; 4886 4887 /** 4888 * The maximum amount of time (in milliseconds) between events in order 4889 * for us to consider the user to be doing fast trackball movements, 4890 * and thus apply an acceleration. 4891 */ 4892 static final long FAST_MOVE_TIME = 150; 4893 4894 /** 4895 * Scaling factor to the time (in milliseconds) between events to how 4896 * much to multiple/divide the current acceleration. When movement 4897 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 4898 * FAST_MOVE_TIME it divides it. 4899 */ 4900 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 4901 4902 float position; 4903 float absPosition; 4904 float acceleration = 1; 4905 long lastMoveTime = 0; 4906 int step; 4907 int dir; 4908 int nonAccelMovement; 4909 4910 void reset(int _step) { 4911 position = 0; 4912 acceleration = 1; 4913 lastMoveTime = 0; 4914 step = _step; 4915 dir = 0; 4916 } 4917 4918 /** 4919 * Add trackball movement into the state. If the direction of movement 4920 * has been reversed, the state is reset before adding the 4921 * movement (so that you don't have to compensate for any previously 4922 * collected movement before see the result of the movement in the 4923 * new direction). 4924 * 4925 * @return Returns the absolute value of the amount of movement 4926 * collected so far. 4927 */ 4928 float collect(float off, long time, String axis) { 4929 long normTime; 4930 if (off > 0) { 4931 normTime = (long)(off * FAST_MOVE_TIME); 4932 if (dir < 0) { 4933 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 4934 position = 0; 4935 step = 0; 4936 acceleration = 1; 4937 lastMoveTime = 0; 4938 } 4939 dir = 1; 4940 } else if (off < 0) { 4941 normTime = (long)((-off) * FAST_MOVE_TIME); 4942 if (dir > 0) { 4943 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 4944 position = 0; 4945 step = 0; 4946 acceleration = 1; 4947 lastMoveTime = 0; 4948 } 4949 dir = -1; 4950 } else { 4951 normTime = 0; 4952 } 4953 4954 // The number of milliseconds between each movement that is 4955 // considered "normal" and will not result in any acceleration 4956 // or deceleration, scaled by the offset we have here. 4957 if (normTime > 0) { 4958 long delta = time - lastMoveTime; 4959 lastMoveTime = time; 4960 float acc = acceleration; 4961 if (delta < normTime) { 4962 // The user is scrolling rapidly, so increase acceleration. 4963 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 4964 if (scale > 1) acc *= scale; 4965 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 4966 + off + " normTime=" + normTime + " delta=" + delta 4967 + " scale=" + scale + " acc=" + acc); 4968 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 4969 } else { 4970 // The user is scrolling slowly, so decrease acceleration. 4971 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 4972 if (scale > 1) acc /= scale; 4973 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 4974 + off + " normTime=" + normTime + " delta=" + delta 4975 + " scale=" + scale + " acc=" + acc); 4976 acceleration = acc > 1 ? acc : 1; 4977 } 4978 } 4979 position += off; 4980 return (absPosition = Math.abs(position)); 4981 } 4982 4983 /** 4984 * Generate the number of discrete movement events appropriate for 4985 * the currently collected trackball movement. 4986 * 4987 * @param precision The minimum movement required to generate the 4988 * first discrete movement. 4989 * 4990 * @return Returns the number of discrete movements, either positive 4991 * or negative, or 0 if there is not enough trackball movement yet 4992 * for a discrete movement. 4993 */ 4994 int generate(float precision) { 4995 int movement = 0; 4996 nonAccelMovement = 0; 4997 do { 4998 final int dir = position >= 0 ? 1 : -1; 4999 switch (step) { 5000 // If we are going to execute the first step, then we want 5001 // to do this as soon as possible instead of waiting for 5002 // a full movement, in order to make things look responsive. 5003 case 0: 5004 if (absPosition < precision) { 5005 return movement; 5006 } 5007 movement += dir; 5008 nonAccelMovement += dir; 5009 step = 1; 5010 break; 5011 // If we have generated the first movement, then we need 5012 // to wait for the second complete trackball motion before 5013 // generating the second discrete movement. 5014 case 1: 5015 if (absPosition < 2) { 5016 return movement; 5017 } 5018 movement += dir; 5019 nonAccelMovement += dir; 5020 position += dir > 0 ? -2 : 2; 5021 absPosition = Math.abs(position); 5022 step = 2; 5023 break; 5024 // After the first two, we generate discrete movements 5025 // consistently with the trackball, applying an acceleration 5026 // if the trackball is moving quickly. This is a simple 5027 // acceleration on top of what we already compute based 5028 // on how quickly the wheel is being turned, to apply 5029 // a longer increasing acceleration to continuous movement 5030 // in one direction. 5031 default: 5032 if (absPosition < 1) { 5033 return movement; 5034 } 5035 movement += dir; 5036 position += dir >= 0 ? -1 : 1; 5037 absPosition = Math.abs(position); 5038 float acc = acceleration; 5039 acc *= 1.1f; 5040 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5041 break; 5042 } 5043 } while (true); 5044 } 5045 } 5046 5047 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5048 public CalledFromWrongThreadException(String msg) { 5049 super(msg); 5050 } 5051 } 5052 5053 private SurfaceHolder mHolder = new SurfaceHolder() { 5054 // we only need a SurfaceHolder for opengl. it would be nice 5055 // to implement everything else though, especially the callback 5056 // support (opengl doesn't make use of it right now, but eventually 5057 // will). 5058 public Surface getSurface() { 5059 return mSurface; 5060 } 5061 5062 public boolean isCreating() { 5063 return false; 5064 } 5065 5066 public void addCallback(Callback callback) { 5067 } 5068 5069 public void removeCallback(Callback callback) { 5070 } 5071 5072 public void setFixedSize(int width, int height) { 5073 } 5074 5075 public void setSizeFromLayout() { 5076 } 5077 5078 public void setFormat(int format) { 5079 } 5080 5081 public void setType(int type) { 5082 } 5083 5084 public void setKeepScreenOn(boolean screenOn) { 5085 } 5086 5087 public Canvas lockCanvas() { 5088 return null; 5089 } 5090 5091 public Canvas lockCanvas(Rect dirty) { 5092 return null; 5093 } 5094 5095 public void unlockCanvasAndPost(Canvas canvas) { 5096 } 5097 public Rect getSurfaceFrame() { 5098 return null; 5099 } 5100 }; 5101 5102 static RunQueue getRunQueue() { 5103 RunQueue rq = sRunQueues.get(); 5104 if (rq != null) { 5105 return rq; 5106 } 5107 rq = new RunQueue(); 5108 sRunQueues.set(rq); 5109 return rq; 5110 } 5111 5112 /** 5113 * The run queue is used to enqueue pending work from Views when no Handler is 5114 * attached. The work is executed during the next call to performTraversals on 5115 * the thread. 5116 * @hide 5117 */ 5118 static final class RunQueue { 5119 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5120 5121 void post(Runnable action) { 5122 postDelayed(action, 0); 5123 } 5124 5125 void postDelayed(Runnable action, long delayMillis) { 5126 HandlerAction handlerAction = new HandlerAction(); 5127 handlerAction.action = action; 5128 handlerAction.delay = delayMillis; 5129 5130 synchronized (mActions) { 5131 mActions.add(handlerAction); 5132 } 5133 } 5134 5135 void removeCallbacks(Runnable action) { 5136 final HandlerAction handlerAction = new HandlerAction(); 5137 handlerAction.action = action; 5138 5139 synchronized (mActions) { 5140 final ArrayList<HandlerAction> actions = mActions; 5141 5142 while (actions.remove(handlerAction)) { 5143 // Keep going 5144 } 5145 } 5146 } 5147 5148 void executeActions(Handler handler) { 5149 synchronized (mActions) { 5150 final ArrayList<HandlerAction> actions = mActions; 5151 final int count = actions.size(); 5152 5153 for (int i = 0; i < count; i++) { 5154 final HandlerAction handlerAction = actions.get(i); 5155 handler.postDelayed(handlerAction.action, handlerAction.delay); 5156 } 5157 5158 actions.clear(); 5159 } 5160 } 5161 5162 private static class HandlerAction { 5163 Runnable action; 5164 long delay; 5165 5166 @Override 5167 public boolean equals(Object o) { 5168 if (this == o) return true; 5169 if (o == null || getClass() != o.getClass()) return false; 5170 5171 HandlerAction that = (HandlerAction) o; 5172 return !(action != null ? !action.equals(that.action) : that.action != null); 5173 5174 } 5175 5176 @Override 5177 public int hashCode() { 5178 int result = action != null ? action.hashCode() : 0; 5179 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5180 return result; 5181 } 5182 } 5183 } 5184 5185 /** 5186 * Class for managing the accessibility interaction connection 5187 * based on the global accessibility state. 5188 */ 5189 final class AccessibilityInteractionConnectionManager 5190 implements AccessibilityStateChangeListener { 5191 public void onAccessibilityStateChanged(boolean enabled) { 5192 if (enabled) { 5193 ensureConnection(); 5194 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5195 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5196 View focusedView = mView.findFocus(); 5197 if (focusedView != null && focusedView != mView) { 5198 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5199 } 5200 } 5201 } else { 5202 ensureNoConnection(); 5203 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5204 } 5205 } 5206 5207 public void ensureConnection() { 5208 if (mAttachInfo != null) { 5209 final boolean registered = 5210 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5211 if (!registered) { 5212 mAttachInfo.mAccessibilityWindowId = 5213 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5214 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5215 } 5216 } 5217 } 5218 5219 public void ensureNoConnection() { 5220 final boolean registered = 5221 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5222 if (registered) { 5223 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5224 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5225 } 5226 } 5227 } 5228 5229 /** 5230 * This class is an interface this ViewAncestor provides to the 5231 * AccessibilityManagerService to the latter can interact with 5232 * the view hierarchy in this ViewAncestor. 5233 */ 5234 static final class AccessibilityInteractionConnection 5235 extends IAccessibilityInteractionConnection.Stub { 5236 private final WeakReference<ViewRootImpl> mViewRootImpl; 5237 5238 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5239 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5240 } 5241 5242 @Override 5243 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5244 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5245 int flags, int interrogatingPid, long interrogatingTid) { 5246 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5247 if (viewRootImpl != null && viewRootImpl.mView != null) { 5248 viewRootImpl.getAccessibilityInteractionController() 5249 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5250 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5251 } else { 5252 // We cannot make the call and notify the caller so it does not wait. 5253 try { 5254 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5255 } catch (RemoteException re) { 5256 /* best effort - ignore */ 5257 } 5258 } 5259 } 5260 5261 @Override 5262 public void performAccessibilityAction(long accessibilityNodeId, int action, 5263 Bundle arguments, int interactionId, 5264 IAccessibilityInteractionConnectionCallback callback, int flags, 5265 int interogatingPid, long interrogatingTid) { 5266 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5267 if (viewRootImpl != null && viewRootImpl.mView != null) { 5268 viewRootImpl.getAccessibilityInteractionController() 5269 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5270 interactionId, callback, flags, interogatingPid, interrogatingTid); 5271 } else { 5272 // We cannot make the call and notify the caller so it does not wait. 5273 try { 5274 callback.setPerformAccessibilityActionResult(false, interactionId); 5275 } catch (RemoteException re) { 5276 /* best effort - ignore */ 5277 } 5278 } 5279 } 5280 5281 @Override 5282 public void findAccessibilityNodeInfoByViewId(long accessibilityNodeId, int viewId, 5283 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5284 int flags, int interrogatingPid, long interrogatingTid) { 5285 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5286 if (viewRootImpl != null && viewRootImpl.mView != null) { 5287 viewRootImpl.getAccessibilityInteractionController() 5288 .findAccessibilityNodeInfoByViewIdClientThread(accessibilityNodeId, viewId, 5289 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5290 } else { 5291 // We cannot make the call and notify the caller so it does not wait. 5292 try { 5293 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5294 } catch (RemoteException re) { 5295 /* best effort - ignore */ 5296 } 5297 } 5298 } 5299 5300 @Override 5301 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5302 int interactionId, IAccessibilityInteractionConnectionCallback callback, 5303 int flags, int interrogatingPid, long interrogatingTid) { 5304 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5305 if (viewRootImpl != null && viewRootImpl.mView != null) { 5306 viewRootImpl.getAccessibilityInteractionController() 5307 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5308 interactionId, callback, flags, interrogatingPid, interrogatingTid); 5309 } else { 5310 // We cannot make the call and notify the caller so it does not wait. 5311 try { 5312 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5313 } catch (RemoteException re) { 5314 /* best effort - ignore */ 5315 } 5316 } 5317 } 5318 5319 @Override 5320 public void findFocus(long accessibilityNodeId, int interactionId, int focusType, 5321 IAccessibilityInteractionConnectionCallback callback, int flags, 5322 int interrogatingPid, long interrogatingTid) { 5323 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5324 if (viewRootImpl != null && viewRootImpl.mView != null) { 5325 viewRootImpl.getAccessibilityInteractionController() 5326 .findFocusClientThread(accessibilityNodeId, interactionId, focusType, 5327 callback, flags, interrogatingPid, interrogatingTid); 5328 } else { 5329 // We cannot make the call and notify the caller so it does not wait. 5330 try { 5331 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5332 } catch (RemoteException re) { 5333 /* best effort - ignore */ 5334 } 5335 } 5336 } 5337 5338 @Override 5339 public void focusSearch(long accessibilityNodeId, int interactionId, int direction, 5340 IAccessibilityInteractionConnectionCallback callback, int flags, 5341 int interrogatingPid, long interrogatingTid) { 5342 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5343 if (viewRootImpl != null && viewRootImpl.mView != null) { 5344 viewRootImpl.getAccessibilityInteractionController() 5345 .focusSearchClientThread(accessibilityNodeId, interactionId, direction, 5346 callback, flags, interrogatingPid, interrogatingTid); 5347 } else { 5348 // We cannot make the call and notify the caller so it does not wait. 5349 try { 5350 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5351 } catch (RemoteException re) { 5352 /* best effort - ignore */ 5353 } 5354 } 5355 } 5356 } 5357 5358 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5359 public View mSource; 5360 5361 public void run() { 5362 if (mSource != null) { 5363 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5364 mSource.resetAccessibilityStateChanged(); 5365 mSource = null; 5366 } 5367 } 5368 } 5369} 5370