ViewRootImpl.java revision 961cae92540763226648813d111c5b5c3b0f1597
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.Manifest; 20import android.animation.LayoutTransition; 21import android.app.ActivityManagerNative; 22import android.content.ClipDescription; 23import android.content.ComponentCallbacks; 24import android.content.ComponentCallbacks2; 25import android.content.Context; 26import android.content.pm.ApplicationInfo; 27import android.content.pm.PackageManager; 28import android.content.res.CompatibilityInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Canvas; 32import android.graphics.Paint; 33import android.graphics.PixelFormat; 34import android.graphics.Point; 35import android.graphics.PointF; 36import android.graphics.PorterDuff; 37import android.graphics.Rect; 38import android.graphics.Region; 39import android.graphics.drawable.Drawable; 40import android.media.AudioManager; 41import android.os.Binder; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Handler; 45import android.os.LatencyTimer; 46import android.os.Looper; 47import android.os.Message; 48import android.os.ParcelFileDescriptor; 49import android.os.PowerManager; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.os.SystemProperties; 54import android.os.Trace; 55import android.util.AndroidRuntimeException; 56import android.util.DisplayMetrics; 57import android.util.Log; 58import android.util.Slog; 59import android.util.TypedValue; 60import android.view.View.AttachInfo; 61import android.view.View.MeasureSpec; 62import android.view.accessibility.AccessibilityEvent; 63import android.view.accessibility.AccessibilityManager; 64import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 65import android.view.accessibility.AccessibilityNodeInfo; 66import android.view.accessibility.AccessibilityNodeProvider; 67import android.view.accessibility.IAccessibilityInteractionConnection; 68import android.view.accessibility.IAccessibilityInteractionConnectionCallback; 69import android.view.animation.AccelerateDecelerateInterpolator; 70import android.view.animation.Interpolator; 71import android.view.inputmethod.InputConnection; 72import android.view.inputmethod.InputMethodManager; 73import android.widget.Scroller; 74 75import com.android.internal.R; 76import com.android.internal.os.SomeArgs; 77import com.android.internal.policy.PolicyManager; 78import com.android.internal.view.BaseSurfaceHolder; 79import com.android.internal.view.RootViewSurfaceTaker; 80 81import java.io.IOException; 82import java.io.OutputStream; 83import java.lang.ref.WeakReference; 84import java.util.ArrayList; 85import java.util.HashSet; 86 87/** 88 * The top of a view hierarchy, implementing the needed protocol between View 89 * and the WindowManager. This is for the most part an internal implementation 90 * detail of {@link WindowManagerGlobal}. 91 * 92 * {@hide} 93 */ 94@SuppressWarnings({"EmptyCatchBlock", "PointlessBooleanExpression"}) 95public final class ViewRootImpl implements ViewParent, 96 View.AttachInfo.Callbacks, HardwareRenderer.HardwareDrawCallbacks { 97 private static final String TAG = "ViewRootImpl"; 98 private static final boolean DBG = false; 99 private static final boolean LOCAL_LOGV = false; 100 /** @noinspection PointlessBooleanExpression*/ 101 private static final boolean DEBUG_DRAW = false || LOCAL_LOGV; 102 private static final boolean DEBUG_LAYOUT = false || LOCAL_LOGV; 103 private static final boolean DEBUG_DIALOG = false || LOCAL_LOGV; 104 private static final boolean DEBUG_INPUT_RESIZE = false || LOCAL_LOGV; 105 private static final boolean DEBUG_ORIENTATION = false || LOCAL_LOGV; 106 private static final boolean DEBUG_TRACKBALL = false || LOCAL_LOGV; 107 private static final boolean DEBUG_IMF = false || LOCAL_LOGV; 108 private static final boolean DEBUG_CONFIGURATION = false || LOCAL_LOGV; 109 private static final boolean DEBUG_FPS = false; 110 111 private static final boolean USE_RENDER_THREAD = false; 112 113 /** 114 * Set this system property to true to force the view hierarchy to render 115 * at 60 Hz. This can be used to measure the potential framerate. 116 */ 117 private static final String PROPERTY_PROFILE_RENDERING = "viewancestor.profile_rendering"; 118 119 private static final boolean MEASURE_LATENCY = false; 120 private static LatencyTimer lt; 121 122 /** 123 * Maximum time we allow the user to roll the trackball enough to generate 124 * a key event, before resetting the counters. 125 */ 126 static final int MAX_TRACKBALL_DELAY = 250; 127 128 static final ThreadLocal<RunQueue> sRunQueues = new ThreadLocal<RunQueue>(); 129 130 static final ArrayList<Runnable> sFirstDrawHandlers = new ArrayList<Runnable>(); 131 static boolean sFirstDrawComplete = false; 132 133 static final ArrayList<ComponentCallbacks> sConfigCallbacks 134 = new ArrayList<ComponentCallbacks>(); 135 136 private static boolean sUseRenderThread = false; 137 private static boolean sRenderThreadQueried = false; 138 private static final Object[] sRenderThreadQueryLock = new Object[0]; 139 140 final IWindowSession mWindowSession; 141 final Display mDisplay; 142 final String mBasePackageName; 143 144 long mLastTrackballTime = 0; 145 final TrackballAxis mTrackballAxisX = new TrackballAxis(); 146 final TrackballAxis mTrackballAxisY = new TrackballAxis(); 147 148 final SimulatedDpad mSimulatedDpad; 149 150 int mLastJoystickXDirection; 151 int mLastJoystickYDirection; 152 int mLastJoystickXKeyCode; 153 int mLastJoystickYKeyCode; 154 155 final int[] mTmpLocation = new int[2]; 156 157 final TypedValue mTmpValue = new TypedValue(); 158 159 final InputMethodCallback mInputMethodCallback; 160 final Thread mThread; 161 162 final WindowLeaked mLocation; 163 164 final WindowManager.LayoutParams mWindowAttributes = new WindowManager.LayoutParams(); 165 166 final W mWindow; 167 168 final int mTargetSdkVersion; 169 170 int mSeq; 171 172 View mView; 173 174 View mAccessibilityFocusedHost; 175 AccessibilityNodeInfo mAccessibilityFocusedVirtualView; 176 177 int mViewVisibility; 178 boolean mAppVisible = true; 179 int mOrigWindowType = -1; 180 181 // Set to true if the owner of this window is in the stopped state, 182 // so the window should no longer be active. 183 boolean mStopped = false; 184 185 boolean mLastInCompatMode = false; 186 187 SurfaceHolder.Callback2 mSurfaceHolderCallback; 188 BaseSurfaceHolder mSurfaceHolder; 189 boolean mIsCreating; 190 boolean mDrawingAllowed; 191 192 final Region mTransparentRegion; 193 final Region mPreviousTransparentRegion; 194 195 int mWidth; 196 int mHeight; 197 Rect mDirty; 198 final Rect mCurrentDirty = new Rect(); 199 final Rect mPreviousDirty = new Rect(); 200 boolean mIsAnimating; 201 202 CompatibilityInfo.Translator mTranslator; 203 204 final View.AttachInfo mAttachInfo; 205 InputChannel mInputChannel; 206 InputQueue.Callback mInputQueueCallback; 207 InputQueue mInputQueue; 208 FallbackEventHandler mFallbackEventHandler; 209 Choreographer mChoreographer; 210 211 final Rect mTempRect; // used in the transaction to not thrash the heap. 212 final Rect mVisRect; // used to retrieve visible rect of focused view. 213 214 boolean mTraversalScheduled; 215 int mTraversalBarrier; 216 boolean mWillDrawSoon; 217 /** Set to true while in performTraversals for detecting when die(true) is called from internal 218 * callbacks such as onMeasure, onPreDraw, onDraw and deferring doDie() until later. */ 219 boolean mIsInTraversal; 220 boolean mFitSystemWindowsRequested; 221 boolean mLayoutRequested; 222 boolean mFirst; 223 boolean mReportNextDraw; 224 boolean mFullRedrawNeeded; 225 boolean mNewSurfaceNeeded; 226 boolean mHasHadWindowFocus; 227 boolean mLastWasImTarget; 228 boolean mWindowsAnimating; 229 boolean mIsDrawing; 230 int mLastSystemUiVisibility; 231 int mClientWindowLayoutFlags; 232 boolean mLastOverscanRequested; 233 234 /** @hide */ 235 public static final int EVENT_NOT_HANDLED = 0; 236 /** @hide */ 237 public static final int EVENT_HANDLED = 1; 238 /** @hide */ 239 public static final int EVENT_IN_PROGRESS = 2; 240 241 // Pool of queued input events. 242 private static final int MAX_QUEUED_INPUT_EVENT_POOL_SIZE = 10; 243 private QueuedInputEvent mQueuedInputEventPool; 244 private int mQueuedInputEventPoolSize; 245 246 // Input event queue. 247 QueuedInputEvent mFirstPendingInputEvent; 248 int mPendingInputEventCount; 249 QueuedInputEvent mCurrentInputEvent; 250 boolean mProcessInputEventsScheduled; 251 String mPendingInputEventQueueLengthCounterName = "pq"; 252 253 boolean mWindowAttributesChanged = false; 254 int mWindowAttributesChangesFlag = 0; 255 256 // These can be accessed by any thread, must be protected with a lock. 257 // Surface can never be reassigned or cleared (use Surface.clear()). 258 private final Surface mSurface = new Surface(); 259 260 boolean mAdded; 261 boolean mAddedTouchMode; 262 263 final CompatibilityInfoHolder mCompatibilityInfo; 264 265 // These are accessed by multiple threads. 266 final Rect mWinFrame; // frame given by window manager. 267 268 final Rect mPendingOverscanInsets = new Rect(); 269 final Rect mPendingVisibleInsets = new Rect(); 270 final Rect mPendingContentInsets = new Rect(); 271 final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets 272 = new ViewTreeObserver.InternalInsetsInfo(); 273 274 final Rect mFitSystemWindowsInsets = new Rect(); 275 276 final Configuration mLastConfiguration = new Configuration(); 277 final Configuration mPendingConfiguration = new Configuration(); 278 279 boolean mScrollMayChange; 280 int mSoftInputMode; 281 WeakReference<View> mLastScrolledFocus; 282 int mScrollY; 283 int mCurScrollY; 284 Scroller mScroller; 285 HardwareLayer mResizeBuffer; 286 long mResizeBufferStartTime; 287 int mResizeBufferDuration; 288 static final Interpolator mResizeInterpolator = new AccelerateDecelerateInterpolator(); 289 private ArrayList<LayoutTransition> mPendingTransitions; 290 291 final ViewConfiguration mViewConfiguration; 292 293 /* Drag/drop */ 294 ClipDescription mDragDescription; 295 View mCurrentDragView; 296 volatile Object mLocalDragState; 297 final PointF mDragPoint = new PointF(); 298 final PointF mLastTouchPoint = new PointF(); 299 300 private boolean mProfileRendering; 301 private Choreographer.FrameCallback mRenderProfiler; 302 private boolean mRenderProfilingEnabled; 303 304 // Variables to track frames per second, enabled via DEBUG_FPS flag 305 private long mFpsStartTime = -1; 306 private long mFpsPrevTime = -1; 307 private int mFpsNumFrames; 308 309 private final ArrayList<DisplayList> mDisplayLists = new ArrayList<DisplayList>(); 310 311 /** 312 * see {@link #playSoundEffect(int)} 313 */ 314 AudioManager mAudioManager; 315 316 final AccessibilityManager mAccessibilityManager; 317 318 AccessibilityInteractionController mAccessibilityInteractionController; 319 320 AccessibilityInteractionConnectionManager mAccessibilityInteractionConnectionManager; 321 322 SendWindowContentChangedAccessibilityEvent mSendWindowContentChangedAccessibilityEvent; 323 324 HashSet<View> mTempHashSet; 325 326 private final int mDensity; 327 private final int mNoncompatDensity; 328 329 private boolean mInLayout = false; 330 ArrayList<View> mLayoutRequesters = new ArrayList<View>(); 331 boolean mHandlingLayoutInLayoutRequest = false; 332 333 private int mViewLayoutDirectionInitial; 334 335 /** 336 * Consistency verifier for debugging purposes. 337 */ 338 protected final InputEventConsistencyVerifier mInputEventConsistencyVerifier = 339 InputEventConsistencyVerifier.isInstrumentationEnabled() ? 340 new InputEventConsistencyVerifier(this, 0) : null; 341 342 static final class SystemUiVisibilityInfo { 343 int seq; 344 int globalVisibility; 345 int localValue; 346 int localChanges; 347 } 348 349 public ViewRootImpl(Context context, Display display) { 350 super(); 351 352 if (MEASURE_LATENCY) { 353 if (lt == null) { 354 lt = new LatencyTimer(100, 1000); 355 } 356 } 357 358 // Initialize the statics when this class is first instantiated. This is 359 // done here instead of in the static block because Zygote does not 360 // allow the spawning of threads. 361 mWindowSession = WindowManagerGlobal.getWindowSession(context.getMainLooper()); 362 mDisplay = display; 363 mBasePackageName = context.getBasePackageName(); 364 365 CompatibilityInfoHolder cih = display.getCompatibilityInfo(); 366 mCompatibilityInfo = cih != null ? cih : new CompatibilityInfoHolder(); 367 368 mThread = Thread.currentThread(); 369 mLocation = new WindowLeaked(null); 370 mLocation.fillInStackTrace(); 371 mWidth = -1; 372 mHeight = -1; 373 mDirty = new Rect(); 374 mTempRect = new Rect(); 375 mVisRect = new Rect(); 376 mWinFrame = new Rect(); 377 mWindow = new W(this); 378 mTargetSdkVersion = context.getApplicationInfo().targetSdkVersion; 379 mInputMethodCallback = new InputMethodCallback(this); 380 mViewVisibility = View.GONE; 381 mTransparentRegion = new Region(); 382 mPreviousTransparentRegion = new Region(); 383 mFirst = true; // true for the first time the view is added 384 mAdded = false; 385 mAccessibilityManager = AccessibilityManager.getInstance(context); 386 mAccessibilityInteractionConnectionManager = 387 new AccessibilityInteractionConnectionManager(); 388 mAccessibilityManager.addAccessibilityStateChangeListener( 389 mAccessibilityInteractionConnectionManager); 390 mAttachInfo = new View.AttachInfo(mWindowSession, mWindow, display, this, mHandler, this); 391 mViewConfiguration = ViewConfiguration.get(context); 392 mDensity = context.getResources().getDisplayMetrics().densityDpi; 393 mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi; 394 mFallbackEventHandler = PolicyManager.makeNewFallbackEventHandler(context); 395 mChoreographer = Choreographer.getInstance(); 396 397 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 398 mAttachInfo.mScreenOn = powerManager.isScreenOn(); 399 loadSystemProperties(); 400 mSimulatedDpad = new SimulatedDpad(context); 401 } 402 403 /** 404 * @return True if the application requests the use of a separate render thread, 405 * false otherwise 406 */ 407 private static boolean isRenderThreadRequested(Context context) { 408 if (USE_RENDER_THREAD) { 409 synchronized (sRenderThreadQueryLock) { 410 if (!sRenderThreadQueried) { 411 final PackageManager packageManager = context.getPackageManager(); 412 final String packageName = context.getApplicationInfo().packageName; 413 try { 414 ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 415 PackageManager.GET_META_DATA); 416 if (applicationInfo.metaData != null) { 417 sUseRenderThread = applicationInfo.metaData.getBoolean( 418 "android.graphics.renderThread", false); 419 } 420 } catch (PackageManager.NameNotFoundException e) { 421 } finally { 422 sRenderThreadQueried = true; 423 } 424 } 425 return sUseRenderThread; 426 } 427 } else { 428 return false; 429 } 430 } 431 432 public static void addFirstDrawHandler(Runnable callback) { 433 synchronized (sFirstDrawHandlers) { 434 if (!sFirstDrawComplete) { 435 sFirstDrawHandlers.add(callback); 436 } 437 } 438 } 439 440 public static void addConfigCallback(ComponentCallbacks callback) { 441 synchronized (sConfigCallbacks) { 442 sConfigCallbacks.add(callback); 443 } 444 } 445 446 // FIXME for perf testing only 447 private boolean mProfile = false; 448 449 /** 450 * Call this to profile the next traversal call. 451 * FIXME for perf testing only. Remove eventually 452 */ 453 public void profile() { 454 mProfile = true; 455 } 456 457 /** 458 * Indicates whether we are in touch mode. Calling this method triggers an IPC 459 * call and should be avoided whenever possible. 460 * 461 * @return True, if the device is in touch mode, false otherwise. 462 * 463 * @hide 464 */ 465 static boolean isInTouchMode() { 466 IWindowSession windowSession = WindowManagerGlobal.peekWindowSession(); 467 if (windowSession != null) { 468 try { 469 return windowSession.getInTouchMode(); 470 } catch (RemoteException e) { 471 } 472 } 473 return false; 474 } 475 476 /** 477 * We have one child 478 */ 479 public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) { 480 synchronized (this) { 481 if (mView == null) { 482 mView = view; 483 mViewLayoutDirectionInitial = mView.getRawLayoutDirection(); 484 mFallbackEventHandler.setView(view); 485 mWindowAttributes.copyFrom(attrs); 486 if (mWindowAttributes.packageName == null) { 487 mWindowAttributes.packageName = mBasePackageName; 488 } 489 attrs = mWindowAttributes; 490 // Keep track of the actual window flags supplied by the client. 491 mClientWindowLayoutFlags = attrs.flags; 492 493 setAccessibilityFocus(null, null); 494 495 if (view instanceof RootViewSurfaceTaker) { 496 mSurfaceHolderCallback = 497 ((RootViewSurfaceTaker)view).willYouTakeTheSurface(); 498 if (mSurfaceHolderCallback != null) { 499 mSurfaceHolder = new TakenSurfaceHolder(); 500 mSurfaceHolder.setFormat(PixelFormat.UNKNOWN); 501 } 502 } 503 504 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 505 mTranslator = compatibilityInfo.getTranslator(); 506 507 // If the application owns the surface, don't enable hardware acceleration 508 if (mSurfaceHolder == null) { 509 enableHardwareAcceleration(mView.getContext(), attrs); 510 } 511 512 boolean restore = false; 513 if (mTranslator != null) { 514 mSurface.setCompatibilityTranslator(mTranslator); 515 restore = true; 516 attrs.backup(); 517 mTranslator.translateWindowLayout(attrs); 518 } 519 if (DEBUG_LAYOUT) Log.d(TAG, "WindowLayout in setView:" + attrs); 520 521 if (!compatibilityInfo.supportsScreen()) { 522 attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 523 mLastInCompatMode = true; 524 } 525 526 mSoftInputMode = attrs.softInputMode; 527 mWindowAttributesChanged = true; 528 mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED; 529 mAttachInfo.mRootView = view; 530 mAttachInfo.mScalingRequired = mTranslator != null; 531 mAttachInfo.mApplicationScale = 532 mTranslator == null ? 1.0f : mTranslator.applicationScale; 533 if (panelParentView != null) { 534 mAttachInfo.mPanelParentWindowToken 535 = panelParentView.getApplicationWindowToken(); 536 } 537 mAdded = true; 538 int res; /* = WindowManagerImpl.ADD_OKAY; */ 539 540 // Schedule the first layout -before- adding to the window 541 // manager, to make sure we do the relayout before receiving 542 // any other events from the system. 543 requestLayout(); 544 if ((mWindowAttributes.inputFeatures 545 & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) { 546 mInputChannel = new InputChannel(); 547 } 548 try { 549 mOrigWindowType = mWindowAttributes.type; 550 mAttachInfo.mRecomputeGlobalAttributes = true; 551 collectViewAttributes(); 552 res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, 553 getHostVisibility(), mDisplay.getDisplayId(), 554 mAttachInfo.mContentInsets, mInputChannel); 555 } catch (RemoteException e) { 556 mAdded = false; 557 mView = null; 558 mAttachInfo.mRootView = null; 559 mInputChannel = null; 560 mFallbackEventHandler.setView(null); 561 unscheduleTraversals(); 562 setAccessibilityFocus(null, null); 563 throw new RuntimeException("Adding window failed", e); 564 } finally { 565 if (restore) { 566 attrs.restore(); 567 } 568 } 569 570 if (mTranslator != null) { 571 mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets); 572 } 573 mPendingOverscanInsets.set(0, 0, 0, 0); 574 mPendingContentInsets.set(mAttachInfo.mContentInsets); 575 mPendingVisibleInsets.set(0, 0, 0, 0); 576 if (DEBUG_LAYOUT) Log.v(TAG, "Added window " + mWindow); 577 if (res < WindowManagerGlobal.ADD_OKAY) { 578 mAttachInfo.mRootView = null; 579 mAdded = false; 580 mFallbackEventHandler.setView(null); 581 unscheduleTraversals(); 582 setAccessibilityFocus(null, null); 583 switch (res) { 584 case WindowManagerGlobal.ADD_BAD_APP_TOKEN: 585 case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN: 586 throw new WindowManager.BadTokenException( 587 "Unable to add window -- token " + attrs.token 588 + " is not valid; is your activity running?"); 589 case WindowManagerGlobal.ADD_NOT_APP_TOKEN: 590 throw new WindowManager.BadTokenException( 591 "Unable to add window -- token " + attrs.token 592 + " is not for an application"); 593 case WindowManagerGlobal.ADD_APP_EXITING: 594 throw new WindowManager.BadTokenException( 595 "Unable to add window -- app for token " + attrs.token 596 + " is exiting"); 597 case WindowManagerGlobal.ADD_DUPLICATE_ADD: 598 throw new WindowManager.BadTokenException( 599 "Unable to add window -- window " + mWindow 600 + " has already been added"); 601 case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED: 602 // Silently ignore -- we would have just removed it 603 // right away, anyway. 604 return; 605 case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON: 606 throw new WindowManager.BadTokenException( 607 "Unable to add window " + mWindow + 608 " -- another window of this type already exists"); 609 case WindowManagerGlobal.ADD_PERMISSION_DENIED: 610 throw new WindowManager.BadTokenException( 611 "Unable to add window " + mWindow + 612 " -- permission denied for this window type"); 613 case WindowManagerGlobal.ADD_INVALID_DISPLAY: 614 throw new WindowManager.InvalidDisplayException( 615 "Unable to add window " + mWindow + 616 " -- the specified display can not be found"); 617 } 618 throw new RuntimeException( 619 "Unable to add window -- unknown error code " + res); 620 } 621 622 if (view instanceof RootViewSurfaceTaker) { 623 mInputQueueCallback = 624 ((RootViewSurfaceTaker)view).willYouTakeTheInputQueue(); 625 } 626 if (mInputChannel != null) { 627 if (mInputQueueCallback != null) { 628 mInputQueue = new InputQueue(mInputChannel); 629 mInputQueueCallback.onInputQueueCreated(mInputQueue); 630 } else { 631 mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, 632 Looper.myLooper()); 633 } 634 } 635 636 view.assignParent(this); 637 mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0; 638 mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0; 639 640 if (mAccessibilityManager.isEnabled()) { 641 mAccessibilityInteractionConnectionManager.ensureConnection(); 642 } 643 644 if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 645 view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 646 } 647 648 mPendingInputEventQueueLengthCounterName = "pq:" + attrs.getTitle(); 649 } 650 } 651 } 652 653 void destroyHardwareResources() { 654 if (mAttachInfo.mHardwareRenderer != null) { 655 if (mAttachInfo.mHardwareRenderer.isEnabled()) { 656 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 657 } 658 mAttachInfo.mHardwareRenderer.destroy(false); 659 } 660 } 661 662 void terminateHardwareResources() { 663 if (mAttachInfo.mHardwareRenderer != null) { 664 mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView); 665 mAttachInfo.mHardwareRenderer.destroy(false); 666 } 667 } 668 669 void destroyHardwareLayers() { 670 if (mThread != Thread.currentThread()) { 671 if (mAttachInfo.mHardwareRenderer != null && 672 mAttachInfo.mHardwareRenderer.isEnabled()) { 673 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE); 674 } 675 } else { 676 if (mAttachInfo.mHardwareRenderer != null && 677 mAttachInfo.mHardwareRenderer.isEnabled()) { 678 mAttachInfo.mHardwareRenderer.destroyLayers(mView); 679 } 680 } 681 } 682 683 void pushHardwareLayerUpdate(HardwareLayer layer) { 684 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 685 mAttachInfo.mHardwareRenderer.pushLayerUpdate(layer); 686 } 687 } 688 689 public boolean attachFunctor(int functor) { 690 //noinspection SimplifiableIfStatement 691 if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) { 692 return mAttachInfo.mHardwareRenderer.attachFunctor(mAttachInfo, functor); 693 } 694 return false; 695 } 696 697 public void detachFunctor(int functor) { 698 if (mAttachInfo.mHardwareRenderer != null) { 699 mAttachInfo.mHardwareRenderer.detachFunctor(functor); 700 } 701 } 702 703 private void enableHardwareAcceleration(Context context, WindowManager.LayoutParams attrs) { 704 mAttachInfo.mHardwareAccelerated = false; 705 mAttachInfo.mHardwareAccelerationRequested = false; 706 707 // Don't enable hardware acceleration when the application is in compatibility mode 708 if (mTranslator != null) return; 709 710 // Try to enable hardware acceleration if requested 711 final boolean hardwareAccelerated = 712 (attrs.flags & WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0; 713 714 if (hardwareAccelerated) { 715 if (!HardwareRenderer.isAvailable()) { 716 return; 717 } 718 719 // Persistent processes (including the system) should not do 720 // accelerated rendering on low-end devices. In that case, 721 // sRendererDisabled will be set. In addition, the system process 722 // itself should never do accelerated rendering. In that case, both 723 // sRendererDisabled and sSystemRendererDisabled are set. When 724 // sSystemRendererDisabled is set, PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED 725 // can be used by code on the system process to escape that and enable 726 // HW accelerated drawing. (This is basically for the lock screen.) 727 728 final boolean fakeHwAccelerated = (attrs.privateFlags & 729 WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED) != 0; 730 final boolean forceHwAccelerated = (attrs.privateFlags & 731 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED) != 0; 732 733 if (!HardwareRenderer.sRendererDisabled || (HardwareRenderer.sSystemRendererDisabled 734 && forceHwAccelerated)) { 735 // Don't enable hardware acceleration when we're not on the main thread 736 if (!HardwareRenderer.sSystemRendererDisabled && 737 Looper.getMainLooper() != Looper.myLooper()) { 738 Log.w(HardwareRenderer.LOG_TAG, "Attempting to initialize hardware " 739 + "acceleration outside of the main thread, aborting"); 740 return; 741 } 742 743 final boolean renderThread = isRenderThreadRequested(context); 744 if (renderThread) { 745 Log.i(HardwareRenderer.LOG_TAG, "Render threat initiated"); 746 } 747 748 if (mAttachInfo.mHardwareRenderer != null) { 749 mAttachInfo.mHardwareRenderer.destroy(true); 750 } 751 752 final boolean translucent = attrs.format != PixelFormat.OPAQUE; 753 mAttachInfo.mHardwareRenderer = HardwareRenderer.createGlRenderer(2, translucent); 754 mAttachInfo.mHardwareRenderer.setName(attrs.getTitle().toString()); 755 mAttachInfo.mHardwareAccelerated = mAttachInfo.mHardwareAccelerationRequested 756 = mAttachInfo.mHardwareRenderer != null; 757 758 } else if (fakeHwAccelerated) { 759 // The window had wanted to use hardware acceleration, but this 760 // is not allowed in its process. By setting this flag, it can 761 // still render as if it was accelerated. This is basically for 762 // the preview windows the window manager shows for launching 763 // applications, so they will look more like the app being launched. 764 mAttachInfo.mHardwareAccelerationRequested = true; 765 } 766 } 767 } 768 769 public View getView() { 770 return mView; 771 } 772 773 final WindowLeaked getLocation() { 774 return mLocation; 775 } 776 777 void setLayoutParams(WindowManager.LayoutParams attrs, boolean newView) { 778 synchronized (this) { 779 int oldSoftInputMode = mWindowAttributes.softInputMode; 780 // Keep track of the actual window flags supplied by the client. 781 mClientWindowLayoutFlags = attrs.flags; 782 // preserve compatible window flag if exists. 783 int compatibleWindowFlag = 784 mWindowAttributes.flags & WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 785 // transfer over system UI visibility values as they carry current state. 786 attrs.systemUiVisibility = mWindowAttributes.systemUiVisibility; 787 attrs.subtreeSystemUiVisibility = mWindowAttributes.subtreeSystemUiVisibility; 788 mWindowAttributesChangesFlag = mWindowAttributes.copyFrom(attrs); 789 if (mWindowAttributes.packageName == null) { 790 mWindowAttributes.packageName = mBasePackageName; 791 } 792 mWindowAttributes.flags |= compatibleWindowFlag; 793 794 applyKeepScreenOnFlag(mWindowAttributes); 795 796 if (newView) { 797 mSoftInputMode = attrs.softInputMode; 798 requestLayout(); 799 } 800 // Don't lose the mode we last auto-computed. 801 if ((attrs.softInputMode&WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 802 == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 803 mWindowAttributes.softInputMode = (mWindowAttributes.softInputMode 804 & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) 805 | (oldSoftInputMode 806 & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST); 807 } 808 mWindowAttributesChanged = true; 809 scheduleTraversals(); 810 } 811 } 812 813 void handleAppVisibility(boolean visible) { 814 if (mAppVisible != visible) { 815 mAppVisible = visible; 816 scheduleTraversals(); 817 } 818 } 819 820 void handleGetNewSurface() { 821 mNewSurfaceNeeded = true; 822 mFullRedrawNeeded = true; 823 scheduleTraversals(); 824 } 825 826 void handleScreenStateChange(boolean on) { 827 if (on != mAttachInfo.mScreenOn) { 828 mAttachInfo.mScreenOn = on; 829 if (mView != null) { 830 mView.dispatchScreenStateChanged(on ? View.SCREEN_STATE_ON : View.SCREEN_STATE_OFF); 831 } 832 if (on) { 833 mFullRedrawNeeded = true; 834 scheduleTraversals(); 835 } 836 } 837 } 838 839 @Override 840 public void requestFitSystemWindows() { 841 checkThread(); 842 mFitSystemWindowsRequested = true; 843 scheduleTraversals(); 844 } 845 846 @Override 847 public void requestLayout() { 848 if (!mHandlingLayoutInLayoutRequest) { 849 checkThread(); 850 mLayoutRequested = true; 851 scheduleTraversals(); 852 } 853 } 854 855 @Override 856 public boolean isLayoutRequested() { 857 return mLayoutRequested; 858 } 859 860 void invalidate() { 861 mDirty.set(0, 0, mWidth, mHeight); 862 scheduleTraversals(); 863 } 864 865 void invalidateWorld(View view) { 866 view.invalidate(); 867 if (view instanceof ViewGroup) { 868 ViewGroup parent = (ViewGroup) view; 869 for (int i = 0; i < parent.getChildCount(); i++) { 870 invalidateWorld(parent.getChildAt(i)); 871 } 872 } 873 } 874 875 @Override 876 public void invalidateChild(View child, Rect dirty) { 877 invalidateChildInParent(null, dirty); 878 } 879 880 public ViewParent invalidateChildInParent(int[] location, Rect dirty) { 881 checkThread(); 882 if (DEBUG_DRAW) Log.v(TAG, "Invalidate child: " + dirty); 883 884 if (dirty == null) { 885 invalidate(); 886 return null; 887 } else if (dirty.isEmpty() && !mIsAnimating) { 888 return null; 889 } 890 891 if (mCurScrollY != 0 || mTranslator != null) { 892 mTempRect.set(dirty); 893 dirty = mTempRect; 894 if (mCurScrollY != 0) { 895 dirty.offset(0, -mCurScrollY); 896 } 897 if (mTranslator != null) { 898 mTranslator.translateRectInAppWindowToScreen(dirty); 899 } 900 if (mAttachInfo.mScalingRequired) { 901 dirty.inset(-1, -1); 902 } 903 } 904 905 final Rect localDirty = mDirty; 906 if (!localDirty.isEmpty() && !localDirty.contains(dirty)) { 907 mAttachInfo.mSetIgnoreDirtyState = true; 908 mAttachInfo.mIgnoreDirtyState = true; 909 } 910 911 // Add the new dirty rect to the current one 912 localDirty.union(dirty.left, dirty.top, dirty.right, dirty.bottom); 913 // Intersect with the bounds of the window to skip 914 // updates that lie outside of the visible region 915 final float appScale = mAttachInfo.mApplicationScale; 916 final boolean intersected = localDirty.intersect(0, 0, 917 (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 918 if (!intersected) { 919 localDirty.setEmpty(); 920 } 921 if (!mWillDrawSoon && (intersected || mIsAnimating)) { 922 scheduleTraversals(); 923 } 924 925 return null; 926 } 927 928 void setStopped(boolean stopped) { 929 if (mStopped != stopped) { 930 mStopped = stopped; 931 if (!stopped) { 932 scheduleTraversals(); 933 } 934 } 935 } 936 937 public ViewParent getParent() { 938 return null; 939 } 940 941 public boolean getChildVisibleRect(View child, Rect r, android.graphics.Point offset) { 942 if (child != mView) { 943 throw new RuntimeException("child is not mine, honest!"); 944 } 945 // Note: don't apply scroll offset, because we want to know its 946 // visibility in the virtual canvas being given to the view hierarchy. 947 return r.intersect(0, 0, mWidth, mHeight); 948 } 949 950 public void bringChildToFront(View child) { 951 } 952 953 int getHostVisibility() { 954 return mAppVisible ? mView.getVisibility() : View.GONE; 955 } 956 957 void disposeResizeBuffer() { 958 if (mResizeBuffer != null) { 959 mResizeBuffer.destroy(); 960 mResizeBuffer = null; 961 } 962 } 963 964 /** 965 * Add LayoutTransition to the list of transitions to be started in the next traversal. 966 * This list will be cleared after the transitions on the list are start()'ed. These 967 * transitionsa re added by LayoutTransition itself when it sets up animations. The setup 968 * happens during the layout phase of traversal, which we want to complete before any of the 969 * animations are started (because those animations may side-effect properties that layout 970 * depends upon, like the bounding rectangles of the affected views). So we add the transition 971 * to the list and it is started just prior to starting the drawing phase of traversal. 972 * 973 * @param transition The LayoutTransition to be started on the next traversal. 974 * 975 * @hide 976 */ 977 public void requestTransitionStart(LayoutTransition transition) { 978 if (mPendingTransitions == null || !mPendingTransitions.contains(transition)) { 979 if (mPendingTransitions == null) { 980 mPendingTransitions = new ArrayList<LayoutTransition>(); 981 } 982 mPendingTransitions.add(transition); 983 } 984 } 985 986 void scheduleTraversals() { 987 if (!mTraversalScheduled) { 988 mTraversalScheduled = true; 989 mTraversalBarrier = mHandler.getLooper().postSyncBarrier(); 990 mChoreographer.postCallback( 991 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 992 scheduleConsumeBatchedInput(); 993 } 994 } 995 996 void unscheduleTraversals() { 997 if (mTraversalScheduled) { 998 mTraversalScheduled = false; 999 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1000 mChoreographer.removeCallbacks( 1001 Choreographer.CALLBACK_TRAVERSAL, mTraversalRunnable, null); 1002 } 1003 } 1004 1005 void doTraversal() { 1006 if (mTraversalScheduled) { 1007 mTraversalScheduled = false; 1008 mHandler.getLooper().removeSyncBarrier(mTraversalBarrier); 1009 1010 if (mProfile) { 1011 Debug.startMethodTracing("ViewAncestor"); 1012 } 1013 1014 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "performTraversals"); 1015 try { 1016 performTraversals(); 1017 } finally { 1018 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1019 } 1020 1021 if (mProfile) { 1022 Debug.stopMethodTracing(); 1023 mProfile = false; 1024 } 1025 } 1026 } 1027 1028 private void applyKeepScreenOnFlag(WindowManager.LayoutParams params) { 1029 // Update window's global keep screen on flag: if a view has requested 1030 // that the screen be kept on, then it is always set; otherwise, it is 1031 // set to whatever the client last requested for the global state. 1032 if (mAttachInfo.mKeepScreenOn) { 1033 params.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; 1034 } else { 1035 params.flags = (params.flags&~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON) 1036 | (mClientWindowLayoutFlags&WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1037 } 1038 } 1039 1040 private boolean collectViewAttributes() { 1041 final View.AttachInfo attachInfo = mAttachInfo; 1042 if (attachInfo.mRecomputeGlobalAttributes) { 1043 //Log.i(TAG, "Computing view hierarchy attributes!"); 1044 attachInfo.mRecomputeGlobalAttributes = false; 1045 boolean oldScreenOn = attachInfo.mKeepScreenOn; 1046 attachInfo.mKeepScreenOn = false; 1047 attachInfo.mSystemUiVisibility = 0; 1048 attachInfo.mHasSystemUiListeners = false; 1049 mView.dispatchCollectViewAttributes(attachInfo, 0); 1050 attachInfo.mSystemUiVisibility &= ~attachInfo.mDisabledSystemUiVisibility; 1051 WindowManager.LayoutParams params = mWindowAttributes; 1052 if (attachInfo.mKeepScreenOn != oldScreenOn 1053 || attachInfo.mSystemUiVisibility != params.subtreeSystemUiVisibility 1054 || attachInfo.mHasSystemUiListeners != params.hasSystemUiListeners) { 1055 applyKeepScreenOnFlag(params); 1056 params.subtreeSystemUiVisibility = attachInfo.mSystemUiVisibility; 1057 params.hasSystemUiListeners = attachInfo.mHasSystemUiListeners; 1058 mView.dispatchWindowSystemUiVisiblityChanged(attachInfo.mSystemUiVisibility); 1059 return true; 1060 } 1061 } 1062 return false; 1063 } 1064 1065 private boolean measureHierarchy(final View host, final WindowManager.LayoutParams lp, 1066 final Resources res, final int desiredWindowWidth, final int desiredWindowHeight) { 1067 int childWidthMeasureSpec; 1068 int childHeightMeasureSpec; 1069 boolean windowSizeMayChange = false; 1070 1071 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) Log.v(TAG, 1072 "Measuring " + host + " in display " + desiredWindowWidth 1073 + "x" + desiredWindowHeight + "..."); 1074 1075 boolean goodMeasure = false; 1076 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT) { 1077 // On large screens, we don't want to allow dialogs to just 1078 // stretch to fill the entire width of the screen to display 1079 // one line of text. First try doing the layout at a smaller 1080 // size to see if it will fit. 1081 final DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1082 res.getValue(com.android.internal.R.dimen.config_prefDialogWidth, mTmpValue, true); 1083 int baseSize = 0; 1084 if (mTmpValue.type == TypedValue.TYPE_DIMENSION) { 1085 baseSize = (int)mTmpValue.getDimension(packageMetrics); 1086 } 1087 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": baseSize=" + baseSize); 1088 if (baseSize != 0 && desiredWindowWidth > baseSize) { 1089 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1090 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1091 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1092 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1093 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1094 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1095 goodMeasure = true; 1096 } else { 1097 // Didn't fit in that size... try expanding a bit. 1098 baseSize = (baseSize+desiredWindowWidth)/2; 1099 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": next baseSize=" 1100 + baseSize); 1101 childWidthMeasureSpec = getRootMeasureSpec(baseSize, lp.width); 1102 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1103 if (DEBUG_DIALOG) Log.v(TAG, "Window " + mView + ": measured (" 1104 + host.getMeasuredWidth() + "," + host.getMeasuredHeight() + ")"); 1105 if ((host.getMeasuredWidthAndState()&View.MEASURED_STATE_TOO_SMALL) == 0) { 1106 if (DEBUG_DIALOG) Log.v(TAG, "Good!"); 1107 goodMeasure = true; 1108 } 1109 } 1110 } 1111 } 1112 1113 if (!goodMeasure) { 1114 childWidthMeasureSpec = getRootMeasureSpec(desiredWindowWidth, lp.width); 1115 childHeightMeasureSpec = getRootMeasureSpec(desiredWindowHeight, lp.height); 1116 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1117 if (mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) { 1118 windowSizeMayChange = true; 1119 } 1120 } 1121 1122 if (DBG) { 1123 System.out.println("======================================"); 1124 System.out.println("performTraversals -- after measure"); 1125 host.debug(); 1126 } 1127 1128 return windowSizeMayChange; 1129 } 1130 1131 private void performTraversals() { 1132 // cache mView since it is used so much below... 1133 final View host = mView; 1134 1135 if (DBG) { 1136 System.out.println("======================================"); 1137 System.out.println("performTraversals"); 1138 host.debug(); 1139 } 1140 1141 if (host == null || !mAdded) 1142 return; 1143 1144 mIsInTraversal = true; 1145 mWillDrawSoon = true; 1146 boolean windowSizeMayChange = false; 1147 boolean newSurface = false; 1148 boolean surfaceChanged = false; 1149 WindowManager.LayoutParams lp = mWindowAttributes; 1150 1151 int desiredWindowWidth; 1152 int desiredWindowHeight; 1153 1154 final View.AttachInfo attachInfo = mAttachInfo; 1155 1156 final int viewVisibility = getHostVisibility(); 1157 boolean viewVisibilityChanged = mViewVisibility != viewVisibility 1158 || mNewSurfaceNeeded; 1159 1160 WindowManager.LayoutParams params = null; 1161 if (mWindowAttributesChanged) { 1162 mWindowAttributesChanged = false; 1163 surfaceChanged = true; 1164 params = lp; 1165 } 1166 CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get(); 1167 if (compatibilityInfo.supportsScreen() == mLastInCompatMode) { 1168 params = lp; 1169 mFullRedrawNeeded = true; 1170 mLayoutRequested = true; 1171 if (mLastInCompatMode) { 1172 params.flags &= ~WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1173 mLastInCompatMode = false; 1174 } else { 1175 params.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; 1176 mLastInCompatMode = true; 1177 } 1178 } 1179 1180 mWindowAttributesChangesFlag = 0; 1181 1182 Rect frame = mWinFrame; 1183 if (mFirst) { 1184 mFullRedrawNeeded = true; 1185 mLayoutRequested = true; 1186 1187 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1188 // NOTE -- system code, won't try to do compat mode. 1189 Point size = new Point(); 1190 mDisplay.getRealSize(size); 1191 desiredWindowWidth = size.x; 1192 desiredWindowHeight = size.y; 1193 } else { 1194 DisplayMetrics packageMetrics = 1195 mView.getContext().getResources().getDisplayMetrics(); 1196 desiredWindowWidth = packageMetrics.widthPixels; 1197 desiredWindowHeight = packageMetrics.heightPixels; 1198 } 1199 1200 // For the very first time, tell the view hierarchy that it 1201 // is attached to the window. Note that at this point the surface 1202 // object is not initialized to its backing store, but soon it 1203 // will be (assuming the window is visible). 1204 attachInfo.mSurface = mSurface; 1205 // We used to use the following condition to choose 32 bits drawing caches: 1206 // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888 1207 // However, windows are now always 32 bits by default, so choose 32 bits 1208 attachInfo.mUse32BitDrawingCache = true; 1209 attachInfo.mHasWindowFocus = false; 1210 attachInfo.mWindowVisibility = viewVisibility; 1211 attachInfo.mRecomputeGlobalAttributes = false; 1212 viewVisibilityChanged = false; 1213 mLastConfiguration.setTo(host.getResources().getConfiguration()); 1214 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1215 // Set the layout direction if it has not been set before (inherit is the default) 1216 if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 1217 host.setLayoutDirection(mLastConfiguration.getLayoutDirection()); 1218 } 1219 host.dispatchAttachedToWindow(attachInfo, 0); 1220 attachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true); 1221 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1222 host.fitSystemWindows(mFitSystemWindowsInsets); 1223 //Log.i(TAG, "Screen on initialized: " + attachInfo.mKeepScreenOn); 1224 1225 } else { 1226 desiredWindowWidth = frame.width(); 1227 desiredWindowHeight = frame.height(); 1228 if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) { 1229 if (DEBUG_ORIENTATION) Log.v(TAG, 1230 "View " + host + " resized to: " + frame); 1231 mFullRedrawNeeded = true; 1232 mLayoutRequested = true; 1233 windowSizeMayChange = true; 1234 } 1235 } 1236 1237 if (viewVisibilityChanged) { 1238 attachInfo.mWindowVisibility = viewVisibility; 1239 host.dispatchWindowVisibilityChanged(viewVisibility); 1240 if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) { 1241 destroyHardwareResources(); 1242 } 1243 if (viewVisibility == View.GONE) { 1244 // After making a window gone, we will count it as being 1245 // shown for the first time the next time it gets focus. 1246 mHasHadWindowFocus = false; 1247 } 1248 } 1249 1250 // Execute enqueued actions on every traversal in case a detached view enqueued an action 1251 getRunQueue().executeActions(attachInfo.mHandler); 1252 1253 boolean insetsChanged = false; 1254 1255 boolean layoutRequested = mLayoutRequested && !mStopped; 1256 if (layoutRequested) { 1257 1258 final Resources res = mView.getContext().getResources(); 1259 1260 if (mFirst) { 1261 // make sure touch mode code executes by setting cached value 1262 // to opposite of the added touch mode. 1263 mAttachInfo.mInTouchMode = !mAddedTouchMode; 1264 ensureTouchModeLocally(mAddedTouchMode); 1265 } else { 1266 if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) { 1267 insetsChanged = true; 1268 } 1269 if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) { 1270 insetsChanged = true; 1271 } 1272 if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) { 1273 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1274 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1275 + mAttachInfo.mVisibleInsets); 1276 } 1277 if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT 1278 || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) { 1279 windowSizeMayChange = true; 1280 1281 if (lp.type == WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL) { 1282 // NOTE -- system code, won't try to do compat mode. 1283 Point size = new Point(); 1284 mDisplay.getRealSize(size); 1285 desiredWindowWidth = size.x; 1286 desiredWindowHeight = size.y; 1287 } else { 1288 DisplayMetrics packageMetrics = res.getDisplayMetrics(); 1289 desiredWindowWidth = packageMetrics.widthPixels; 1290 desiredWindowHeight = packageMetrics.heightPixels; 1291 } 1292 } 1293 } 1294 1295 // Ask host how big it wants to be 1296 windowSizeMayChange |= measureHierarchy(host, lp, res, 1297 desiredWindowWidth, desiredWindowHeight); 1298 } 1299 1300 if (collectViewAttributes()) { 1301 params = lp; 1302 } 1303 if (attachInfo.mForceReportNewAttributes) { 1304 attachInfo.mForceReportNewAttributes = false; 1305 params = lp; 1306 } 1307 1308 if (mFirst || attachInfo.mViewVisibilityChanged) { 1309 attachInfo.mViewVisibilityChanged = false; 1310 int resizeMode = mSoftInputMode & 1311 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST; 1312 // If we are in auto resize mode, then we need to determine 1313 // what mode to use now. 1314 if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) { 1315 final int N = attachInfo.mScrollContainers.size(); 1316 for (int i=0; i<N; i++) { 1317 if (attachInfo.mScrollContainers.get(i).isShown()) { 1318 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE; 1319 } 1320 } 1321 if (resizeMode == 0) { 1322 resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; 1323 } 1324 if ((lp.softInputMode & 1325 WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) { 1326 lp.softInputMode = (lp.softInputMode & 1327 ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | 1328 resizeMode; 1329 params = lp; 1330 } 1331 } 1332 } 1333 1334 if (params != null) { 1335 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1336 if (!PixelFormat.formatHasAlpha(params.format)) { 1337 params.format = PixelFormat.TRANSLUCENT; 1338 } 1339 } 1340 mAttachInfo.mOverscanRequested = (params.flags 1341 & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0; 1342 } 1343 1344 if (mFitSystemWindowsRequested) { 1345 mFitSystemWindowsRequested = false; 1346 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1347 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1348 host.fitSystemWindows(mFitSystemWindowsInsets); 1349 if (mLayoutRequested) { 1350 // Short-circuit catching a new layout request here, so 1351 // we don't need to go through two layout passes when things 1352 // change due to fitting system windows, which can happen a lot. 1353 windowSizeMayChange |= measureHierarchy(host, lp, 1354 mView.getContext().getResources(), 1355 desiredWindowWidth, desiredWindowHeight); 1356 } 1357 } 1358 1359 if (layoutRequested) { 1360 // Clear this now, so that if anything requests a layout in the 1361 // rest of this function we will catch it and re-run a full 1362 // layout pass. 1363 mLayoutRequested = false; 1364 } 1365 1366 boolean windowShouldResize = layoutRequested && windowSizeMayChange 1367 && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) 1368 || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && 1369 frame.width() < desiredWindowWidth && frame.width() != mWidth) 1370 || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && 1371 frame.height() < desiredWindowHeight && frame.height() != mHeight)); 1372 1373 final boolean computesInternalInsets = 1374 attachInfo.mTreeObserver.hasComputeInternalInsetsListeners(); 1375 1376 boolean insetsPending = false; 1377 int relayoutResult = 0; 1378 1379 if (mFirst || windowShouldResize || insetsChanged || 1380 viewVisibilityChanged || params != null) { 1381 1382 if (viewVisibility == View.VISIBLE) { 1383 // If this window is giving internal insets to the window 1384 // manager, and it is being added or changing its visibility, 1385 // then we want to first give the window manager "fake" 1386 // insets to cause it to effectively ignore the content of 1387 // the window during layout. This avoids it briefly causing 1388 // other windows to resize/move based on the raw frame of the 1389 // window, waiting until we can finish laying out this window 1390 // and get back to the window manager with the ultimately 1391 // computed insets. 1392 insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged); 1393 } 1394 1395 if (mSurfaceHolder != null) { 1396 mSurfaceHolder.mSurfaceLock.lock(); 1397 mDrawingAllowed = true; 1398 } 1399 1400 boolean hwInitialized = false; 1401 boolean contentInsetsChanged = false; 1402 boolean hadSurface = mSurface.isValid(); 1403 1404 try { 1405 if (DEBUG_LAYOUT) { 1406 Log.i(TAG, "host=w:" + host.getMeasuredWidth() + ", h:" + 1407 host.getMeasuredHeight() + ", params=" + params); 1408 } 1409 1410 final int surfaceGenerationId = mSurface.getGenerationId(); 1411 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending); 1412 1413 if (DEBUG_LAYOUT) Log.v(TAG, "relayout: frame=" + frame.toShortString() 1414 + " overscan=" + mPendingOverscanInsets.toShortString() 1415 + " content=" + mPendingContentInsets.toShortString() 1416 + " visible=" + mPendingVisibleInsets.toShortString() 1417 + " surface=" + mSurface); 1418 1419 if (mPendingConfiguration.seq != 0) { 1420 if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: " 1421 + mPendingConfiguration); 1422 updateConfiguration(mPendingConfiguration, !mFirst); 1423 mPendingConfiguration.seq = 0; 1424 } 1425 1426 final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals( 1427 mAttachInfo.mOverscanInsets); 1428 contentInsetsChanged = !mPendingContentInsets.equals( 1429 mAttachInfo.mContentInsets); 1430 final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals( 1431 mAttachInfo.mVisibleInsets); 1432 if (contentInsetsChanged) { 1433 if (mWidth > 0 && mHeight > 0 && lp != null && 1434 ((lp.systemUiVisibility|lp.subtreeSystemUiVisibility) 1435 & View.SYSTEM_UI_LAYOUT_FLAGS) == 0 && 1436 mSurface != null && mSurface.isValid() && 1437 !mAttachInfo.mTurnOffWindowResizeAnim && 1438 mAttachInfo.mHardwareRenderer != null && 1439 mAttachInfo.mHardwareRenderer.isEnabled() && 1440 mAttachInfo.mHardwareRenderer.validate() && 1441 lp != null && !PixelFormat.formatHasAlpha(lp.format)) { 1442 1443 disposeResizeBuffer(); 1444 1445 boolean completed = false; 1446 HardwareCanvas hwRendererCanvas = mAttachInfo.mHardwareRenderer.getCanvas(); 1447 HardwareCanvas layerCanvas = null; 1448 try { 1449 if (mResizeBuffer == null) { 1450 mResizeBuffer = mAttachInfo.mHardwareRenderer.createHardwareLayer( 1451 mWidth, mHeight, false); 1452 } else if (mResizeBuffer.getWidth() != mWidth || 1453 mResizeBuffer.getHeight() != mHeight) { 1454 mResizeBuffer.resize(mWidth, mHeight); 1455 } 1456 // TODO: should handle create/resize failure 1457 layerCanvas = mResizeBuffer.start(hwRendererCanvas); 1458 final int restoreCount = layerCanvas.save(); 1459 1460 int yoff; 1461 final boolean scrolling = mScroller != null 1462 && mScroller.computeScrollOffset(); 1463 if (scrolling) { 1464 yoff = mScroller.getCurrY(); 1465 mScroller.abortAnimation(); 1466 } else { 1467 yoff = mScrollY; 1468 } 1469 1470 layerCanvas.translate(0, -yoff); 1471 if (mTranslator != null) { 1472 mTranslator.translateCanvas(layerCanvas); 1473 } 1474 1475 DisplayList displayList = mView.mDisplayList; 1476 if (displayList != null) { 1477 layerCanvas.drawDisplayList(displayList, null, 1478 DisplayList.FLAG_CLIP_CHILDREN); 1479 } else { 1480 mView.draw(layerCanvas); 1481 } 1482 1483 drawAccessibilityFocusedDrawableIfNeeded(layerCanvas); 1484 1485 mResizeBufferStartTime = SystemClock.uptimeMillis(); 1486 mResizeBufferDuration = mView.getResources().getInteger( 1487 com.android.internal.R.integer.config_mediumAnimTime); 1488 completed = true; 1489 1490 layerCanvas.restoreToCount(restoreCount); 1491 } catch (OutOfMemoryError e) { 1492 Log.w(TAG, "Not enough memory for content change anim buffer", e); 1493 } finally { 1494 if (mResizeBuffer != null) { 1495 mResizeBuffer.end(hwRendererCanvas); 1496 if (!completed) { 1497 mResizeBuffer.destroy(); 1498 mResizeBuffer = null; 1499 } 1500 } 1501 } 1502 } 1503 mAttachInfo.mContentInsets.set(mPendingContentInsets); 1504 if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: " 1505 + mAttachInfo.mContentInsets); 1506 } 1507 if (overscanInsetsChanged) { 1508 mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets); 1509 if (DEBUG_LAYOUT) Log.v(TAG, "Overscan insets changing to: " 1510 + mAttachInfo.mOverscanInsets); 1511 // Need to relayout with content insets. 1512 contentInsetsChanged = true; 1513 } 1514 if (contentInsetsChanged || mLastSystemUiVisibility != 1515 mAttachInfo.mSystemUiVisibility || mFitSystemWindowsRequested 1516 || mLastOverscanRequested != mAttachInfo.mOverscanRequested) { 1517 mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility; 1518 mLastOverscanRequested = mAttachInfo.mOverscanRequested; 1519 mFitSystemWindowsRequested = false; 1520 mFitSystemWindowsInsets.set(mAttachInfo.mContentInsets); 1521 host.fitSystemWindows(mFitSystemWindowsInsets); 1522 } 1523 if (visibleInsetsChanged) { 1524 mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets); 1525 if (DEBUG_LAYOUT) Log.v(TAG, "Visible insets changing to: " 1526 + mAttachInfo.mVisibleInsets); 1527 } 1528 1529 if (!hadSurface) { 1530 if (mSurface.isValid()) { 1531 // If we are creating a new surface, then we need to 1532 // completely redraw it. Also, when we get to the 1533 // point of drawing it we will hold off and schedule 1534 // a new traversal instead. This is so we can tell the 1535 // window manager about all of the windows being displayed 1536 // before actually drawing them, so it can display then 1537 // all at once. 1538 newSurface = true; 1539 mFullRedrawNeeded = true; 1540 mPreviousTransparentRegion.setEmpty(); 1541 1542 if (mAttachInfo.mHardwareRenderer != null) { 1543 try { 1544 hwInitialized = mAttachInfo.mHardwareRenderer.initialize( 1545 mHolder.getSurface()); 1546 } catch (Surface.OutOfResourcesException e) { 1547 handleOutOfResourcesException(e); 1548 return; 1549 } 1550 } 1551 } 1552 } else if (!mSurface.isValid()) { 1553 // If the surface has been removed, then reset the scroll 1554 // positions. 1555 if (mLastScrolledFocus != null) { 1556 mLastScrolledFocus.clear(); 1557 } 1558 mScrollY = mCurScrollY = 0; 1559 if (mScroller != null) { 1560 mScroller.abortAnimation(); 1561 } 1562 disposeResizeBuffer(); 1563 // Our surface is gone 1564 if (mAttachInfo.mHardwareRenderer != null && 1565 mAttachInfo.mHardwareRenderer.isEnabled()) { 1566 mAttachInfo.mHardwareRenderer.destroy(true); 1567 } 1568 } else if (surfaceGenerationId != mSurface.getGenerationId() && 1569 mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) { 1570 mFullRedrawNeeded = true; 1571 try { 1572 mAttachInfo.mHardwareRenderer.updateSurface(mHolder.getSurface()); 1573 } catch (Surface.OutOfResourcesException e) { 1574 handleOutOfResourcesException(e); 1575 return; 1576 } 1577 } 1578 } catch (RemoteException e) { 1579 } 1580 1581 if (DEBUG_ORIENTATION) Log.v( 1582 TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface); 1583 1584 attachInfo.mWindowLeft = frame.left; 1585 attachInfo.mWindowTop = frame.top; 1586 1587 // !!FIXME!! This next section handles the case where we did not get the 1588 // window size we asked for. We should avoid this by getting a maximum size from 1589 // the window session beforehand. 1590 if (mWidth != frame.width() || mHeight != frame.height()) { 1591 mWidth = frame.width(); 1592 mHeight = frame.height(); 1593 } 1594 1595 if (mSurfaceHolder != null) { 1596 // The app owns the surface; tell it about what is going on. 1597 if (mSurface.isValid()) { 1598 // XXX .copyFrom() doesn't work! 1599 //mSurfaceHolder.mSurface.copyFrom(mSurface); 1600 mSurfaceHolder.mSurface = mSurface; 1601 } 1602 mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight); 1603 mSurfaceHolder.mSurfaceLock.unlock(); 1604 if (mSurface.isValid()) { 1605 if (!hadSurface) { 1606 mSurfaceHolder.ungetCallbacks(); 1607 1608 mIsCreating = true; 1609 mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder); 1610 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1611 if (callbacks != null) { 1612 for (SurfaceHolder.Callback c : callbacks) { 1613 c.surfaceCreated(mSurfaceHolder); 1614 } 1615 } 1616 surfaceChanged = true; 1617 } 1618 if (surfaceChanged) { 1619 mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, 1620 lp.format, mWidth, mHeight); 1621 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1622 if (callbacks != null) { 1623 for (SurfaceHolder.Callback c : callbacks) { 1624 c.surfaceChanged(mSurfaceHolder, lp.format, 1625 mWidth, mHeight); 1626 } 1627 } 1628 } 1629 mIsCreating = false; 1630 } else if (hadSurface) { 1631 mSurfaceHolder.ungetCallbacks(); 1632 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 1633 mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder); 1634 if (callbacks != null) { 1635 for (SurfaceHolder.Callback c : callbacks) { 1636 c.surfaceDestroyed(mSurfaceHolder); 1637 } 1638 } 1639 mSurfaceHolder.mSurfaceLock.lock(); 1640 try { 1641 mSurfaceHolder.mSurface = new Surface(); 1642 } finally { 1643 mSurfaceHolder.mSurfaceLock.unlock(); 1644 } 1645 } 1646 } 1647 1648 if (mAttachInfo.mHardwareRenderer != null && 1649 mAttachInfo.mHardwareRenderer.isEnabled()) { 1650 if (hwInitialized || windowShouldResize || 1651 mWidth != mAttachInfo.mHardwareRenderer.getWidth() || 1652 mHeight != mAttachInfo.mHardwareRenderer.getHeight()) { 1653 mAttachInfo.mHardwareRenderer.setup(mWidth, mHeight); 1654 if (!hwInitialized) { 1655 mAttachInfo.mHardwareRenderer.invalidate(mHolder.getSurface()); 1656 mFullRedrawNeeded = true; 1657 } 1658 } 1659 } 1660 1661 if (!mStopped) { 1662 boolean focusChangedDueToTouchMode = ensureTouchModeLocally( 1663 (relayoutResult&WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0); 1664 if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() 1665 || mHeight != host.getMeasuredHeight() || contentInsetsChanged) { 1666 int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width); 1667 int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height); 1668 1669 if (DEBUG_LAYOUT) Log.v(TAG, "Ooops, something changed! mWidth=" 1670 + mWidth + " measuredWidth=" + host.getMeasuredWidth() 1671 + " mHeight=" + mHeight 1672 + " measuredHeight=" + host.getMeasuredHeight() 1673 + " coveredInsetsChanged=" + contentInsetsChanged); 1674 1675 // Ask host how big it wants to be 1676 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1677 1678 // Implementation of weights from WindowManager.LayoutParams 1679 // We just grow the dimensions as needed and re-measure if 1680 // needs be 1681 int width = host.getMeasuredWidth(); 1682 int height = host.getMeasuredHeight(); 1683 boolean measureAgain = false; 1684 1685 if (lp.horizontalWeight > 0.0f) { 1686 width += (int) ((mWidth - width) * lp.horizontalWeight); 1687 childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, 1688 MeasureSpec.EXACTLY); 1689 measureAgain = true; 1690 } 1691 if (lp.verticalWeight > 0.0f) { 1692 height += (int) ((mHeight - height) * lp.verticalWeight); 1693 childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, 1694 MeasureSpec.EXACTLY); 1695 measureAgain = true; 1696 } 1697 1698 if (measureAgain) { 1699 if (DEBUG_LAYOUT) Log.v(TAG, 1700 "And hey let's measure once more: width=" + width 1701 + " height=" + height); 1702 performMeasure(childWidthMeasureSpec, childHeightMeasureSpec); 1703 } 1704 1705 layoutRequested = true; 1706 } 1707 } 1708 } else { 1709 // Not the first pass and no window/insets/visibility change but the window 1710 // may have moved and we need check that and if so to update the left and right 1711 // in the attach info. We translate only the window frame since on window move 1712 // the window manager tells us only for the new frame but the insets are the 1713 // same and we do not want to translate them more than once. 1714 1715 // TODO: Well, we are checking whether the frame has changed similarly 1716 // to how this is done for the insets. This is however incorrect since 1717 // the insets and the frame are translated. For example, the old frame 1718 // was (1, 1 - 1, 1) and was translated to say (2, 2 - 2, 2), now the new 1719 // reported frame is (2, 2 - 2, 2) which implies no change but this is not 1720 // true since we are comparing a not translated value to a translated one. 1721 // This scenario is rare but we may want to fix that. 1722 1723 final boolean windowMoved = (attachInfo.mWindowLeft != frame.left 1724 || attachInfo.mWindowTop != frame.top); 1725 if (windowMoved) { 1726 if (mTranslator != null) { 1727 mTranslator.translateRectInScreenToAppWinFrame(frame); 1728 } 1729 attachInfo.mWindowLeft = frame.left; 1730 attachInfo.mWindowTop = frame.top; 1731 } 1732 } 1733 1734 final boolean didLayout = layoutRequested && !mStopped; 1735 boolean triggerGlobalLayoutListener = didLayout 1736 || attachInfo.mRecomputeGlobalAttributes; 1737 if (didLayout) { 1738 performLayout(lp, desiredWindowWidth, desiredWindowHeight); 1739 1740 // By this point all views have been sized and positionned 1741 // We can compute the transparent area 1742 1743 if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) { 1744 // start out transparent 1745 // TODO: AVOID THAT CALL BY CACHING THE RESULT? 1746 host.getLocationInWindow(mTmpLocation); 1747 mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], 1748 mTmpLocation[0] + host.mRight - host.mLeft, 1749 mTmpLocation[1] + host.mBottom - host.mTop); 1750 1751 host.gatherTransparentRegion(mTransparentRegion); 1752 if (mTranslator != null) { 1753 mTranslator.translateRegionInWindowToScreen(mTransparentRegion); 1754 } 1755 1756 if (!mTransparentRegion.equals(mPreviousTransparentRegion)) { 1757 mPreviousTransparentRegion.set(mTransparentRegion); 1758 // reconfigure window manager 1759 try { 1760 mWindowSession.setTransparentRegion(mWindow, mTransparentRegion); 1761 } catch (RemoteException e) { 1762 } 1763 } 1764 } 1765 1766 if (DBG) { 1767 System.out.println("======================================"); 1768 System.out.println("performTraversals -- after setFrame"); 1769 host.debug(); 1770 } 1771 } 1772 1773 if (triggerGlobalLayoutListener) { 1774 attachInfo.mRecomputeGlobalAttributes = false; 1775 attachInfo.mTreeObserver.dispatchOnGlobalLayout(); 1776 1777 if (AccessibilityManager.getInstance(host.mContext).isEnabled()) { 1778 postSendWindowContentChangedCallback(mView); 1779 } 1780 } 1781 1782 if (computesInternalInsets) { 1783 // Clear the original insets. 1784 final ViewTreeObserver.InternalInsetsInfo insets = attachInfo.mGivenInternalInsets; 1785 insets.reset(); 1786 1787 // Compute new insets in place. 1788 attachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets); 1789 1790 // Tell the window manager. 1791 if (insetsPending || !mLastGivenInsets.equals(insets)) { 1792 mLastGivenInsets.set(insets); 1793 1794 // Translate insets to screen coordinates if needed. 1795 final Rect contentInsets; 1796 final Rect visibleInsets; 1797 final Region touchableRegion; 1798 if (mTranslator != null) { 1799 contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets); 1800 visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets); 1801 touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion); 1802 } else { 1803 contentInsets = insets.contentInsets; 1804 visibleInsets = insets.visibleInsets; 1805 touchableRegion = insets.touchableRegion; 1806 } 1807 1808 try { 1809 mWindowSession.setInsets(mWindow, insets.mTouchableInsets, 1810 contentInsets, visibleInsets, touchableRegion); 1811 } catch (RemoteException e) { 1812 } 1813 } 1814 } 1815 1816 boolean skipDraw = false; 1817 1818 if (mFirst) { 1819 // handle first focus request 1820 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: mView.hasFocus()=" 1821 + mView.hasFocus()); 1822 if (mView != null) { 1823 if (!mView.hasFocus()) { 1824 mView.requestFocus(View.FOCUS_FORWARD); 1825 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: requested focused view=" 1826 + mView.findFocus()); 1827 } else { 1828 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "First: existing focused view=" 1829 + mView.findFocus()); 1830 } 1831 } 1832 if ((relayoutResult & WindowManagerGlobal.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 & WindowManagerGlobal.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 if (viewVisibility == View.VISIBLE) { 1883 // Try again 1884 scheduleTraversals(); 1885 } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) { 1886 for (int i = 0; i < mPendingTransitions.size(); ++i) { 1887 mPendingTransitions.get(i).endChangingAnimations(); 1888 } 1889 mPendingTransitions.clear(); 1890 } 1891 } 1892 1893 mIsInTraversal = false; 1894 } 1895 1896 private void handleOutOfResourcesException(Surface.OutOfResourcesException e) { 1897 Log.e(TAG, "OutOfResourcesException initializing HW surface", e); 1898 try { 1899 if (!mWindowSession.outOfMemory(mWindow) && 1900 Process.myUid() != Process.SYSTEM_UID) { 1901 Slog.w(TAG, "No processes killed for memory; killing self"); 1902 Process.killProcess(Process.myPid()); 1903 } 1904 } catch (RemoteException ex) { 1905 } 1906 mLayoutRequested = true; // ask wm for a new surface next time. 1907 } 1908 1909 private void performMeasure(int childWidthMeasureSpec, int childHeightMeasureSpec) { 1910 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "measure"); 1911 try { 1912 mView.measure(childWidthMeasureSpec, childHeightMeasureSpec); 1913 } finally { 1914 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 1915 } 1916 } 1917 1918 /** 1919 * Called by {@link android.view.View#isInLayout()} to determine whether the view hierarchy 1920 * is currently undergoing a layout pass. 1921 * 1922 * @return whether the view hierarchy is currently undergoing a layout pass 1923 */ 1924 boolean isInLayout() { 1925 return mInLayout; 1926 } 1927 1928 /** 1929 * Called by {@link android.view.View#requestLayout()} if the view hierarchy is currently 1930 * undergoing a layout pass. requestLayout() should not generally be called during layout, 1931 * unless the container hierarchy knows what it is doing (i.e., it is fine as long as 1932 * all children in that container hierarchy are measured and laid out at the end of the layout 1933 * pass for that container). If requestLayout() is called anyway, we handle it correctly 1934 * by registering all requesters during a frame as it proceeds. At the end of the frame, 1935 * we check all of those views to see if any still have pending layout requests, which 1936 * indicates that they were not correctly handled by their container hierarchy. If that is 1937 * the case, we clear all such flags in the tree, to remove the buggy flag state that leads 1938 * to blank containers, and force a second request/measure/layout pass in this frame. If 1939 * more requestLayout() calls are received during that second layout pass, we post those 1940 * requests to the next frame to avoid possible infinite loops. 1941 * 1942 * <p>The return value from this method indicates whether the request should proceed 1943 * (if it is a request during the first layout pass) or should be skipped and posted to the 1944 * next frame (if it is a request during the second layout pass).</p> 1945 * 1946 * @param view the view that requested the layout. 1947 * 1948 * @return true if request should proceed, false otherwise. 1949 */ 1950 boolean requestLayoutDuringLayout(final View view) { 1951 if (view.mParent == null || view.mAttachInfo == null) { 1952 // Would not normally trigger another layout, so just let it pass through as usual 1953 return true; 1954 } 1955 if (!mLayoutRequesters.contains(view)) { 1956 mLayoutRequesters.add(view); 1957 } 1958 if (!mHandlingLayoutInLayoutRequest) { 1959 // Let the request proceed normally; it will be processed in a second layout pass 1960 // if necessary 1961 return true; 1962 } else { 1963 // Don't let the request proceed during the second layout pass. 1964 // It will post to the next frame instead. 1965 return false; 1966 } 1967 } 1968 1969 private void performLayout(WindowManager.LayoutParams lp, int desiredWindowWidth, 1970 int desiredWindowHeight) { 1971 mLayoutRequested = false; 1972 mScrollMayChange = true; 1973 mInLayout = true; 1974 1975 final View host = mView; 1976 if (DEBUG_ORIENTATION || DEBUG_LAYOUT) { 1977 Log.v(TAG, "Laying out " + host + " to (" + 1978 host.getMeasuredWidth() + ", " + host.getMeasuredHeight() + ")"); 1979 } 1980 1981 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "layout"); 1982 try { 1983 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 1984 1985 mInLayout = false; 1986 int numViewsRequestingLayout = mLayoutRequesters.size(); 1987 if (numViewsRequestingLayout > 0) { 1988 // requestLayout() was called during layout. 1989 // If no layout-request flags are set on the requesting views, there is no problem. 1990 // If some requests are still pending, then we need to clear those flags and do 1991 // a full request/measure/layout pass to handle this situation. 1992 ArrayList<View> validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, 1993 false); 1994 if (validLayoutRequesters != null) { 1995 // Set this flag to indicate that any further requests are happening during 1996 // the second pass, which may result in posting those requests to the next 1997 // frame instead 1998 mHandlingLayoutInLayoutRequest = true; 1999 2000 // Process fresh layout requests, then measure and layout 2001 int numValidRequests = validLayoutRequesters.size(); 2002 for (int i = 0; i < numValidRequests; ++i) { 2003 final View view = validLayoutRequesters.get(i); 2004 Log.w("View", "requestLayout() improperly called by " + view + 2005 " during layout: running second layout pass"); 2006 view.requestLayout(); 2007 } 2008 measureHierarchy(host, lp, mView.getContext().getResources(), 2009 desiredWindowWidth, desiredWindowHeight); 2010 mInLayout = true; 2011 host.layout(0, 0, host.getMeasuredWidth(), host.getMeasuredHeight()); 2012 2013 mHandlingLayoutInLayoutRequest = false; 2014 2015 // Check the valid requests again, this time without checking/clearing the 2016 // layout flags, since requests happening during the second pass get noop'd 2017 validLayoutRequesters = getValidLayoutRequesters(mLayoutRequesters, true); 2018 if (validLayoutRequesters != null) { 2019 final ArrayList<View> finalRequesters = validLayoutRequesters; 2020 // Post second-pass requests to the next frame 2021 getRunQueue().post(new Runnable() { 2022 @Override 2023 public void run() { 2024 int numValidRequests = finalRequesters.size(); 2025 for (int i = 0; i < numValidRequests; ++i) { 2026 final View view = finalRequesters.get(i); 2027 Log.w("View", "requestLayout() improperly called by " + view + 2028 " during second layout pass: posting in next frame"); 2029 view.requestLayout(); 2030 } 2031 } 2032 }); 2033 } 2034 } 2035 2036 } 2037 } finally { 2038 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2039 } 2040 mInLayout = false; 2041 } 2042 2043 /** 2044 * This method is called during layout when there have been calls to requestLayout() during 2045 * layout. It walks through the list of views that requested layout to determine which ones 2046 * still need it, based on visibility in the hierarchy and whether they have already been 2047 * handled (as is usually the case with ListView children). 2048 * 2049 * @param layoutRequesters The list of views that requested layout during layout 2050 * @param secondLayoutRequests Whether the requests were issued during the second layout pass. 2051 * If so, the FORCE_LAYOUT flag was not set on requesters. 2052 * @return A list of the actual views that still need to be laid out. 2053 */ 2054 private ArrayList<View> getValidLayoutRequesters(ArrayList<View> layoutRequesters, 2055 boolean secondLayoutRequests) { 2056 2057 int numViewsRequestingLayout = layoutRequesters.size(); 2058 ArrayList<View> validLayoutRequesters = null; 2059 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2060 View view = layoutRequesters.get(i); 2061 if (view != null && view.mAttachInfo != null && view.mParent != null && 2062 (secondLayoutRequests || (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) == 2063 View.PFLAG_FORCE_LAYOUT)) { 2064 boolean gone = false; 2065 View parent = view; 2066 // Only trigger new requests for views in a non-GONE hierarchy 2067 while (parent != null) { 2068 if ((parent.mViewFlags & View.VISIBILITY_MASK) == View.GONE) { 2069 gone = true; 2070 break; 2071 } 2072 if (parent.mParent instanceof View) { 2073 parent = (View) parent.mParent; 2074 } else { 2075 parent = null; 2076 } 2077 } 2078 if (!gone) { 2079 if (validLayoutRequesters == null) { 2080 validLayoutRequesters = new ArrayList<View>(); 2081 } 2082 validLayoutRequesters.add(view); 2083 } 2084 } 2085 } 2086 if (!secondLayoutRequests) { 2087 // If we're checking the layout flags, then we need to clean them up also 2088 for (int i = 0; i < numViewsRequestingLayout; ++i) { 2089 View view = layoutRequesters.get(i); 2090 while (view != null && 2091 (view.mPrivateFlags & View.PFLAG_FORCE_LAYOUT) != 0) { 2092 view.mPrivateFlags &= ~View.PFLAG_FORCE_LAYOUT; 2093 if (view.mParent instanceof View) { 2094 view = (View) view.mParent; 2095 } else { 2096 view = null; 2097 } 2098 } 2099 } 2100 } 2101 layoutRequesters.clear(); 2102 return validLayoutRequesters; 2103 } 2104 2105 public void requestTransparentRegion(View child) { 2106 // the test below should not fail unless someone is messing with us 2107 checkThread(); 2108 if (mView == child) { 2109 mView.mPrivateFlags |= View.PFLAG_REQUEST_TRANSPARENT_REGIONS; 2110 // Need to make sure we re-evaluate the window attributes next 2111 // time around, to ensure the window has the correct format. 2112 mWindowAttributesChanged = true; 2113 mWindowAttributesChangesFlag = 0; 2114 requestLayout(); 2115 } 2116 } 2117 2118 /** 2119 * Figures out the measure spec for the root view in a window based on it's 2120 * layout params. 2121 * 2122 * @param windowSize 2123 * The available width or height of the window 2124 * 2125 * @param rootDimension 2126 * The layout params for one dimension (width or height) of the 2127 * window. 2128 * 2129 * @return The measure spec to use to measure the root view. 2130 */ 2131 private static int getRootMeasureSpec(int windowSize, int rootDimension) { 2132 int measureSpec; 2133 switch (rootDimension) { 2134 2135 case ViewGroup.LayoutParams.MATCH_PARENT: 2136 // Window can't resize. Force root view to be windowSize. 2137 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.EXACTLY); 2138 break; 2139 case ViewGroup.LayoutParams.WRAP_CONTENT: 2140 // Window can resize. Set max size for root view. 2141 measureSpec = MeasureSpec.makeMeasureSpec(windowSize, MeasureSpec.AT_MOST); 2142 break; 2143 default: 2144 // Window wants to be an exact size. Force root view to be that size. 2145 measureSpec = MeasureSpec.makeMeasureSpec(rootDimension, MeasureSpec.EXACTLY); 2146 break; 2147 } 2148 return measureSpec; 2149 } 2150 2151 int mHardwareYOffset; 2152 int mResizeAlpha; 2153 final Paint mResizePaint = new Paint(); 2154 2155 public void onHardwarePreDraw(HardwareCanvas canvas) { 2156 canvas.translate(0, -mHardwareYOffset); 2157 } 2158 2159 public void onHardwarePostDraw(HardwareCanvas canvas) { 2160 if (mResizeBuffer != null) { 2161 mResizePaint.setAlpha(mResizeAlpha); 2162 canvas.drawHardwareLayer(mResizeBuffer, 0.0f, mHardwareYOffset, mResizePaint); 2163 } 2164 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2165 } 2166 2167 /** 2168 * @hide 2169 */ 2170 void outputDisplayList(View view) { 2171 if (mAttachInfo != null && mAttachInfo.mHardwareCanvas != null) { 2172 DisplayList displayList = view.getDisplayList(); 2173 if (displayList != null) { 2174 mAttachInfo.mHardwareCanvas.outputDisplayList(displayList); 2175 } 2176 } 2177 } 2178 2179 /** 2180 * @see #PROPERTY_PROFILE_RENDERING 2181 */ 2182 private void profileRendering(boolean enabled) { 2183 if (mProfileRendering) { 2184 mRenderProfilingEnabled = enabled; 2185 2186 if (mRenderProfiler != null) { 2187 mChoreographer.removeFrameCallback(mRenderProfiler); 2188 } 2189 if (mRenderProfilingEnabled) { 2190 if (mRenderProfiler == null) { 2191 mRenderProfiler = new Choreographer.FrameCallback() { 2192 @Override 2193 public void doFrame(long frameTimeNanos) { 2194 mDirty.set(0, 0, mWidth, mHeight); 2195 scheduleTraversals(); 2196 if (mRenderProfilingEnabled) { 2197 mChoreographer.postFrameCallback(mRenderProfiler); 2198 } 2199 } 2200 }; 2201 } 2202 mChoreographer.postFrameCallback(mRenderProfiler); 2203 } else { 2204 mRenderProfiler = null; 2205 } 2206 } 2207 } 2208 2209 /** 2210 * Called from draw() when DEBUG_FPS is enabled 2211 */ 2212 private void trackFPS() { 2213 // Tracks frames per second drawn. First value in a series of draws may be bogus 2214 // because it down not account for the intervening idle time 2215 long nowTime = System.currentTimeMillis(); 2216 if (mFpsStartTime < 0) { 2217 mFpsStartTime = mFpsPrevTime = nowTime; 2218 mFpsNumFrames = 0; 2219 } else { 2220 ++mFpsNumFrames; 2221 String thisHash = Integer.toHexString(System.identityHashCode(this)); 2222 long frameTime = nowTime - mFpsPrevTime; 2223 long totalTime = nowTime - mFpsStartTime; 2224 Log.v(TAG, "0x" + thisHash + "\tFrame time:\t" + frameTime); 2225 mFpsPrevTime = nowTime; 2226 if (totalTime > 1000) { 2227 float fps = (float) mFpsNumFrames * 1000 / totalTime; 2228 Log.v(TAG, "0x" + thisHash + "\tFPS:\t" + fps); 2229 mFpsStartTime = nowTime; 2230 mFpsNumFrames = 0; 2231 } 2232 } 2233 } 2234 2235 private void performDraw() { 2236 if (!mAttachInfo.mScreenOn && !mReportNextDraw) { 2237 return; 2238 } 2239 2240 final boolean fullRedrawNeeded = mFullRedrawNeeded; 2241 mFullRedrawNeeded = false; 2242 2243 mIsDrawing = true; 2244 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "draw"); 2245 try { 2246 draw(fullRedrawNeeded); 2247 } finally { 2248 mIsDrawing = false; 2249 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 2250 } 2251 2252 if (mReportNextDraw) { 2253 mReportNextDraw = false; 2254 2255 if (LOCAL_LOGV) { 2256 Log.v(TAG, "FINISHED DRAWING: " + mWindowAttributes.getTitle()); 2257 } 2258 if (mSurfaceHolder != null && mSurface.isValid()) { 2259 mSurfaceHolderCallback.surfaceRedrawNeeded(mSurfaceHolder); 2260 SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks(); 2261 if (callbacks != null) { 2262 for (SurfaceHolder.Callback c : callbacks) { 2263 if (c instanceof SurfaceHolder.Callback2) { 2264 ((SurfaceHolder.Callback2)c).surfaceRedrawNeeded( 2265 mSurfaceHolder); 2266 } 2267 } 2268 } 2269 } 2270 try { 2271 mWindowSession.finishDrawing(mWindow); 2272 } catch (RemoteException e) { 2273 } 2274 } 2275 } 2276 2277 private void draw(boolean fullRedrawNeeded) { 2278 Surface surface = mSurface; 2279 if (!surface.isValid()) { 2280 return; 2281 } 2282 2283 if (DEBUG_FPS) { 2284 trackFPS(); 2285 } 2286 2287 if (!sFirstDrawComplete) { 2288 synchronized (sFirstDrawHandlers) { 2289 sFirstDrawComplete = true; 2290 final int count = sFirstDrawHandlers.size(); 2291 for (int i = 0; i< count; i++) { 2292 mHandler.post(sFirstDrawHandlers.get(i)); 2293 } 2294 } 2295 } 2296 2297 scrollToRectOrFocus(null, false); 2298 2299 final AttachInfo attachInfo = mAttachInfo; 2300 if (attachInfo.mViewScrollChanged) { 2301 attachInfo.mViewScrollChanged = false; 2302 attachInfo.mTreeObserver.dispatchOnScrollChanged(); 2303 } 2304 2305 int yoff; 2306 boolean animating = mScroller != null && mScroller.computeScrollOffset(); 2307 if (animating) { 2308 yoff = mScroller.getCurrY(); 2309 } else { 2310 yoff = mScrollY; 2311 } 2312 if (mCurScrollY != yoff) { 2313 mCurScrollY = yoff; 2314 fullRedrawNeeded = true; 2315 } 2316 2317 final float appScale = attachInfo.mApplicationScale; 2318 final boolean scalingRequired = attachInfo.mScalingRequired; 2319 2320 int resizeAlpha = 0; 2321 if (mResizeBuffer != null) { 2322 long deltaTime = SystemClock.uptimeMillis() - mResizeBufferStartTime; 2323 if (deltaTime < mResizeBufferDuration) { 2324 float amt = deltaTime/(float) mResizeBufferDuration; 2325 amt = mResizeInterpolator.getInterpolation(amt); 2326 animating = true; 2327 resizeAlpha = 255 - (int)(amt*255); 2328 } else { 2329 disposeResizeBuffer(); 2330 } 2331 } 2332 2333 final Rect dirty = mDirty; 2334 if (mSurfaceHolder != null) { 2335 // The app owns the surface, we won't draw. 2336 dirty.setEmpty(); 2337 if (animating) { 2338 if (mScroller != null) { 2339 mScroller.abortAnimation(); 2340 } 2341 disposeResizeBuffer(); 2342 } 2343 return; 2344 } 2345 2346 if (fullRedrawNeeded) { 2347 attachInfo.mIgnoreDirtyState = true; 2348 dirty.set(0, 0, (int) (mWidth * appScale + 0.5f), (int) (mHeight * appScale + 0.5f)); 2349 } 2350 2351 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2352 Log.v(TAG, "Draw " + mView + "/" 2353 + mWindowAttributes.getTitle() 2354 + ": dirty={" + dirty.left + "," + dirty.top 2355 + "," + dirty.right + "," + dirty.bottom + "} surface=" 2356 + surface + " surface.isValid()=" + surface.isValid() + ", appScale:" + 2357 appScale + ", width=" + mWidth + ", height=" + mHeight); 2358 } 2359 2360 invalidateDisplayLists(); 2361 2362 attachInfo.mTreeObserver.dispatchOnDraw(); 2363 2364 if (!dirty.isEmpty() || mIsAnimating) { 2365 if (attachInfo.mHardwareRenderer != null && attachInfo.mHardwareRenderer.isEnabled()) { 2366 // Draw with hardware renderer. 2367 mIsAnimating = false; 2368 mHardwareYOffset = yoff; 2369 mResizeAlpha = resizeAlpha; 2370 2371 mCurrentDirty.set(dirty); 2372 mCurrentDirty.union(mPreviousDirty); 2373 mPreviousDirty.set(dirty); 2374 dirty.setEmpty(); 2375 2376 if (attachInfo.mHardwareRenderer.draw(mView, attachInfo, this, 2377 animating ? null : mCurrentDirty)) { 2378 mPreviousDirty.set(0, 0, mWidth, mHeight); 2379 } 2380 } else { 2381 // If we get here with a disabled & requested hardware renderer, something went 2382 // wrong (an invalidate posted right before we destroyed the hardware surface 2383 // for instance) so we should just bail out. Locking the surface with software 2384 // rendering at this point would lock it forever and prevent hardware renderer 2385 // from doing its job when it comes back. 2386 // Before we request a new frame we must however attempt to reinitiliaze the 2387 // hardware renderer if it's in requested state. This would happen after an 2388 // eglTerminate() for instance. 2389 if (attachInfo.mHardwareRenderer != null && 2390 !attachInfo.mHardwareRenderer.isEnabled() && 2391 attachInfo.mHardwareRenderer.isRequested()) { 2392 2393 try { 2394 attachInfo.mHardwareRenderer.initializeIfNeeded(mWidth, mHeight, 2395 mHolder.getSurface()); 2396 } catch (Surface.OutOfResourcesException e) { 2397 handleOutOfResourcesException(e); 2398 return; 2399 } 2400 2401 mFullRedrawNeeded = true; 2402 scheduleTraversals(); 2403 return; 2404 } 2405 2406 if (!drawSoftware(surface, attachInfo, yoff, scalingRequired, dirty)) { 2407 return; 2408 } 2409 } 2410 } 2411 2412 if (animating) { 2413 mFullRedrawNeeded = true; 2414 scheduleTraversals(); 2415 } 2416 } 2417 2418 /** 2419 * @return true if drawing was succesfull, false if an error occurred 2420 */ 2421 private boolean drawSoftware(Surface surface, AttachInfo attachInfo, int yoff, 2422 boolean scalingRequired, Rect dirty) { 2423 2424 // Draw with software renderer. 2425 Canvas canvas; 2426 try { 2427 int left = dirty.left; 2428 int top = dirty.top; 2429 int right = dirty.right; 2430 int bottom = dirty.bottom; 2431 2432 canvas = mSurface.lockCanvas(dirty); 2433 2434 if (left != dirty.left || top != dirty.top || right != dirty.right || 2435 bottom != dirty.bottom) { 2436 attachInfo.mIgnoreDirtyState = true; 2437 } 2438 2439 // TODO: Do this in native 2440 canvas.setDensity(mDensity); 2441 } catch (Surface.OutOfResourcesException e) { 2442 handleOutOfResourcesException(e); 2443 return false; 2444 } catch (IllegalArgumentException e) { 2445 Log.e(TAG, "Could not lock surface", e); 2446 // Don't assume this is due to out of memory, it could be 2447 // something else, and if it is something else then we could 2448 // kill stuff (or ourself) for no reason. 2449 mLayoutRequested = true; // ask wm for a new surface next time. 2450 return false; 2451 } 2452 2453 try { 2454 if (DEBUG_ORIENTATION || DEBUG_DRAW) { 2455 Log.v(TAG, "Surface " + surface + " drawing to bitmap w=" 2456 + canvas.getWidth() + ", h=" + canvas.getHeight()); 2457 //canvas.drawARGB(255, 255, 0, 0); 2458 } 2459 2460 // If this bitmap's format includes an alpha channel, we 2461 // need to clear it before drawing so that the child will 2462 // properly re-composite its drawing on a transparent 2463 // background. This automatically respects the clip/dirty region 2464 // or 2465 // If we are applying an offset, we need to clear the area 2466 // where the offset doesn't appear to avoid having garbage 2467 // left in the blank areas. 2468 if (!canvas.isOpaque() || yoff != 0) { 2469 canvas.drawColor(0, PorterDuff.Mode.CLEAR); 2470 } 2471 2472 dirty.setEmpty(); 2473 mIsAnimating = false; 2474 attachInfo.mDrawingTime = SystemClock.uptimeMillis(); 2475 mView.mPrivateFlags |= View.PFLAG_DRAWN; 2476 2477 if (DEBUG_DRAW) { 2478 Context cxt = mView.getContext(); 2479 Log.i(TAG, "Drawing: package:" + cxt.getPackageName() + 2480 ", metrics=" + cxt.getResources().getDisplayMetrics() + 2481 ", compatibilityInfo=" + cxt.getResources().getCompatibilityInfo()); 2482 } 2483 try { 2484 canvas.translate(0, -yoff); 2485 if (mTranslator != null) { 2486 mTranslator.translateCanvas(canvas); 2487 } 2488 canvas.setScreenDensity(scalingRequired ? mNoncompatDensity : 0); 2489 attachInfo.mSetIgnoreDirtyState = false; 2490 2491 mView.draw(canvas); 2492 2493 drawAccessibilityFocusedDrawableIfNeeded(canvas); 2494 } finally { 2495 if (!attachInfo.mSetIgnoreDirtyState) { 2496 // Only clear the flag if it was not set during the mView.draw() call 2497 attachInfo.mIgnoreDirtyState = false; 2498 } 2499 } 2500 } finally { 2501 try { 2502 surface.unlockCanvasAndPost(canvas); 2503 } catch (IllegalArgumentException e) { 2504 Log.e(TAG, "Could not unlock surface", e); 2505 mLayoutRequested = true; // ask wm for a new surface next time. 2506 //noinspection ReturnInsideFinallyBlock 2507 return false; 2508 } 2509 2510 if (LOCAL_LOGV) { 2511 Log.v(TAG, "Surface " + surface + " unlockCanvasAndPost"); 2512 } 2513 } 2514 return true; 2515 } 2516 2517 /** 2518 * We want to draw a highlight around the current accessibility focused. 2519 * Since adding a style for all possible view is not a viable option we 2520 * have this specialized drawing method. 2521 * 2522 * Note: We are doing this here to be able to draw the highlight for 2523 * virtual views in addition to real ones. 2524 * 2525 * @param canvas The canvas on which to draw. 2526 */ 2527 private void drawAccessibilityFocusedDrawableIfNeeded(Canvas canvas) { 2528 AccessibilityManager manager = AccessibilityManager.getInstance(mView.mContext); 2529 if (!manager.isEnabled() || !manager.isTouchExplorationEnabled()) { 2530 return; 2531 } 2532 if (mAccessibilityFocusedHost == null || mAccessibilityFocusedHost.mAttachInfo == null) { 2533 return; 2534 } 2535 Drawable drawable = getAccessibilityFocusedDrawable(); 2536 if (drawable == null) { 2537 return; 2538 } 2539 AccessibilityNodeProvider provider = 2540 mAccessibilityFocusedHost.getAccessibilityNodeProvider(); 2541 Rect bounds = mView.mAttachInfo.mTmpInvalRect; 2542 if (provider == null) { 2543 mAccessibilityFocusedHost.getBoundsOnScreen(bounds); 2544 } else { 2545 if (mAccessibilityFocusedVirtualView == null) { 2546 return; 2547 } 2548 mAccessibilityFocusedVirtualView.getBoundsInScreen(bounds); 2549 } 2550 bounds.offset(-mAttachInfo.mWindowLeft, -mAttachInfo.mWindowTop); 2551 bounds.intersect(0, 0, mAttachInfo.mViewRootImpl.mWidth, mAttachInfo.mViewRootImpl.mHeight); 2552 drawable.setBounds(bounds); 2553 drawable.draw(canvas); 2554 } 2555 2556 private Drawable getAccessibilityFocusedDrawable() { 2557 if (mAttachInfo != null) { 2558 // Lazily load the accessibility focus drawable. 2559 if (mAttachInfo.mAccessibilityFocusDrawable == null) { 2560 TypedValue value = new TypedValue(); 2561 final boolean resolved = mView.mContext.getTheme().resolveAttribute( 2562 R.attr.accessibilityFocusedDrawable, value, true); 2563 if (resolved) { 2564 mAttachInfo.mAccessibilityFocusDrawable = 2565 mView.mContext.getResources().getDrawable(value.resourceId); 2566 } 2567 } 2568 return mAttachInfo.mAccessibilityFocusDrawable; 2569 } 2570 return null; 2571 } 2572 2573 void invalidateDisplayLists() { 2574 final ArrayList<DisplayList> displayLists = mDisplayLists; 2575 final int count = displayLists.size(); 2576 2577 for (int i = 0; i < count; i++) { 2578 final DisplayList displayList = displayLists.get(i); 2579 if (displayList.isDirty()) { 2580 displayList.clear(); 2581 } 2582 } 2583 2584 displayLists.clear(); 2585 } 2586 2587 boolean scrollToRectOrFocus(Rect rectangle, boolean immediate) { 2588 final View.AttachInfo attachInfo = mAttachInfo; 2589 final Rect ci = attachInfo.mContentInsets; 2590 final Rect vi = attachInfo.mVisibleInsets; 2591 int scrollY = 0; 2592 boolean handled = false; 2593 2594 if (vi.left > ci.left || vi.top > ci.top 2595 || vi.right > ci.right || vi.bottom > ci.bottom) { 2596 // We'll assume that we aren't going to change the scroll 2597 // offset, since we want to avoid that unless it is actually 2598 // going to make the focus visible... otherwise we scroll 2599 // all over the place. 2600 scrollY = mScrollY; 2601 // We can be called for two different situations: during a draw, 2602 // to update the scroll position if the focus has changed (in which 2603 // case 'rectangle' is null), or in response to a 2604 // requestChildRectangleOnScreen() call (in which case 'rectangle' 2605 // is non-null and we just want to scroll to whatever that 2606 // rectangle is). 2607 View focus = mView.findFocus(); 2608 if (focus == null) { 2609 return false; 2610 } 2611 View lastScrolledFocus = (mLastScrolledFocus != null) ? mLastScrolledFocus.get() : null; 2612 if (lastScrolledFocus != null && focus != lastScrolledFocus) { 2613 // If the focus has changed, then ignore any requests to scroll 2614 // to a rectangle; first we want to make sure the entire focus 2615 // view is visible. 2616 rectangle = null; 2617 } 2618 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Eval scroll: focus=" + focus 2619 + " rectangle=" + rectangle + " ci=" + ci 2620 + " vi=" + vi); 2621 if (focus == lastScrolledFocus && !mScrollMayChange && rectangle == null) { 2622 // Optimization: if the focus hasn't changed since last 2623 // time, and no layout has happened, then just leave things 2624 // as they are. 2625 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Keeping scroll y=" 2626 + mScrollY + " vi=" + vi.toShortString()); 2627 } else if (focus != null) { 2628 // We need to determine if the currently focused view is 2629 // within the visible part of the window and, if not, apply 2630 // a pan so it can be seen. 2631 mLastScrolledFocus = new WeakReference<View>(focus); 2632 mScrollMayChange = false; 2633 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Need to scroll?"); 2634 // Try to find the rectangle from the focus view. 2635 if (focus.getGlobalVisibleRect(mVisRect, null)) { 2636 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Root w=" 2637 + mView.getWidth() + " h=" + mView.getHeight() 2638 + " ci=" + ci.toShortString() 2639 + " vi=" + vi.toShortString()); 2640 if (rectangle == null) { 2641 focus.getFocusedRect(mTempRect); 2642 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Focus " + focus 2643 + ": focusRect=" + mTempRect.toShortString()); 2644 if (mView instanceof ViewGroup) { 2645 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 2646 focus, mTempRect); 2647 } 2648 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2649 "Focus in window: focusRect=" 2650 + mTempRect.toShortString() 2651 + " visRect=" + mVisRect.toShortString()); 2652 } else { 2653 mTempRect.set(rectangle); 2654 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2655 "Request scroll to rect: " 2656 + mTempRect.toShortString() 2657 + " visRect=" + mVisRect.toShortString()); 2658 } 2659 if (mTempRect.intersect(mVisRect)) { 2660 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2661 "Focus window visible rect: " 2662 + mTempRect.toShortString()); 2663 if (mTempRect.height() > 2664 (mView.getHeight()-vi.top-vi.bottom)) { 2665 // If the focus simply is not going to fit, then 2666 // best is probably just to leave things as-is. 2667 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2668 "Too tall; leaving scrollY=" + scrollY); 2669 } else if ((mTempRect.top-scrollY) < vi.top) { 2670 scrollY -= vi.top - (mTempRect.top-scrollY); 2671 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2672 "Top covered; scrollY=" + scrollY); 2673 } else if ((mTempRect.bottom-scrollY) 2674 > (mView.getHeight()-vi.bottom)) { 2675 scrollY += (mTempRect.bottom-scrollY) 2676 - (mView.getHeight()-vi.bottom); 2677 if (DEBUG_INPUT_RESIZE) Log.v(TAG, 2678 "Bottom covered; scrollY=" + scrollY); 2679 } 2680 handled = true; 2681 } 2682 } 2683 } 2684 } 2685 2686 if (scrollY != mScrollY) { 2687 if (DEBUG_INPUT_RESIZE) Log.v(TAG, "Pan scroll changed: old=" 2688 + mScrollY + " , new=" + scrollY); 2689 if (!immediate && mResizeBuffer == null) { 2690 if (mScroller == null) { 2691 mScroller = new Scroller(mView.getContext()); 2692 } 2693 mScroller.startScroll(0, mScrollY, 0, scrollY-mScrollY); 2694 } else if (mScroller != null) { 2695 mScroller.abortAnimation(); 2696 } 2697 mScrollY = scrollY; 2698 } 2699 2700 return handled; 2701 } 2702 2703 /** 2704 * @hide 2705 */ 2706 public View getAccessibilityFocusedHost() { 2707 return mAccessibilityFocusedHost; 2708 } 2709 2710 /** 2711 * @hide 2712 */ 2713 public AccessibilityNodeInfo getAccessibilityFocusedVirtualView() { 2714 return mAccessibilityFocusedVirtualView; 2715 } 2716 2717 void setAccessibilityFocus(View view, AccessibilityNodeInfo node) { 2718 // If we have a virtual view with accessibility focus we need 2719 // to clear the focus and invalidate the virtual view bounds. 2720 if (mAccessibilityFocusedVirtualView != null) { 2721 2722 AccessibilityNodeInfo focusNode = mAccessibilityFocusedVirtualView; 2723 View focusHost = mAccessibilityFocusedHost; 2724 focusHost.clearAccessibilityFocusNoCallbacks(); 2725 2726 // Wipe the state of the current accessibility focus since 2727 // the call into the provider to clear accessibility focus 2728 // will fire an accessibility event which will end up calling 2729 // this method and we want to have clean state when this 2730 // invocation happens. 2731 mAccessibilityFocusedHost = null; 2732 mAccessibilityFocusedVirtualView = null; 2733 2734 AccessibilityNodeProvider provider = focusHost.getAccessibilityNodeProvider(); 2735 if (provider != null) { 2736 // Invalidate the area of the cleared accessibility focus. 2737 focusNode.getBoundsInParent(mTempRect); 2738 focusHost.invalidate(mTempRect); 2739 // Clear accessibility focus in the virtual node. 2740 final int virtualNodeId = AccessibilityNodeInfo.getVirtualDescendantId( 2741 focusNode.getSourceNodeId()); 2742 provider.performAction(virtualNodeId, 2743 AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, null); 2744 } 2745 focusNode.recycle(); 2746 } 2747 if (mAccessibilityFocusedHost != null) { 2748 // Clear accessibility focus in the view. 2749 mAccessibilityFocusedHost.clearAccessibilityFocusNoCallbacks(); 2750 } 2751 2752 // Set the new focus host and node. 2753 mAccessibilityFocusedHost = view; 2754 mAccessibilityFocusedVirtualView = node; 2755 } 2756 2757 public void requestChildFocus(View child, View focused) { 2758 if (DEBUG_INPUT_RESIZE) { 2759 Log.v(TAG, "Request child focus: focus now " + focused); 2760 } 2761 checkThread(); 2762 scheduleTraversals(); 2763 } 2764 2765 public void clearChildFocus(View child) { 2766 if (DEBUG_INPUT_RESIZE) { 2767 Log.v(TAG, "Clearing child focus"); 2768 } 2769 checkThread(); 2770 scheduleTraversals(); 2771 } 2772 2773 @Override 2774 public ViewParent getParentForAccessibility() { 2775 return null; 2776 } 2777 2778 public void focusableViewAvailable(View v) { 2779 checkThread(); 2780 if (mView != null) { 2781 if (!mView.hasFocus()) { 2782 v.requestFocus(); 2783 } else { 2784 // the one case where will transfer focus away from the current one 2785 // is if the current view is a view group that prefers to give focus 2786 // to its children first AND the view is a descendant of it. 2787 View focused = mView.findFocus(); 2788 if (focused instanceof ViewGroup) { 2789 ViewGroup group = (ViewGroup) focused; 2790 if (group.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 2791 && isViewDescendantOf(v, focused)) { 2792 v.requestFocus(); 2793 } 2794 } 2795 } 2796 } 2797 } 2798 2799 public void recomputeViewAttributes(View child) { 2800 checkThread(); 2801 if (mView == child) { 2802 mAttachInfo.mRecomputeGlobalAttributes = true; 2803 if (!mWillDrawSoon) { 2804 scheduleTraversals(); 2805 } 2806 } 2807 } 2808 2809 void dispatchDetachedFromWindow() { 2810 if (mView != null && mView.mAttachInfo != null) { 2811 if (mAttachInfo.mHardwareRenderer != null && 2812 mAttachInfo.mHardwareRenderer.isEnabled()) { 2813 mAttachInfo.mHardwareRenderer.validate(); 2814 } 2815 mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(false); 2816 mView.dispatchDetachedFromWindow(); 2817 } 2818 2819 mAccessibilityInteractionConnectionManager.ensureNoConnection(); 2820 mAccessibilityManager.removeAccessibilityStateChangeListener( 2821 mAccessibilityInteractionConnectionManager); 2822 removeSendWindowContentChangedCallback(); 2823 2824 destroyHardwareRenderer(); 2825 2826 setAccessibilityFocus(null, null); 2827 2828 mView = null; 2829 mAttachInfo.mRootView = null; 2830 mAttachInfo.mSurface = null; 2831 2832 mSurface.release(); 2833 2834 if (mInputQueueCallback != null && mInputQueue != null) { 2835 mInputQueueCallback.onInputQueueDestroyed(mInputQueue); 2836 mInputQueueCallback = null; 2837 mInputQueue = null; 2838 } else if (mInputEventReceiver != null) { 2839 mInputEventReceiver.dispose(); 2840 mInputEventReceiver = null; 2841 } 2842 try { 2843 mWindowSession.remove(mWindow); 2844 } catch (RemoteException e) { 2845 } 2846 2847 // Dispose the input channel after removing the window so the Window Manager 2848 // doesn't interpret the input channel being closed as an abnormal termination. 2849 if (mInputChannel != null) { 2850 mInputChannel.dispose(); 2851 mInputChannel = null; 2852 } 2853 2854 unscheduleTraversals(); 2855 } 2856 2857 void updateConfiguration(Configuration config, boolean force) { 2858 if (DEBUG_CONFIGURATION) Log.v(TAG, 2859 "Applying new config to window " 2860 + mWindowAttributes.getTitle() 2861 + ": " + config); 2862 2863 CompatibilityInfo ci = mCompatibilityInfo.getIfNeeded(); 2864 if (ci != null) { 2865 config = new Configuration(config); 2866 ci.applyToConfiguration(mNoncompatDensity, config); 2867 } 2868 2869 synchronized (sConfigCallbacks) { 2870 for (int i=sConfigCallbacks.size()-1; i>=0; i--) { 2871 sConfigCallbacks.get(i).onConfigurationChanged(config); 2872 } 2873 } 2874 if (mView != null) { 2875 // At this point the resources have been updated to 2876 // have the most recent config, whatever that is. Use 2877 // the one in them which may be newer. 2878 config = mView.getResources().getConfiguration(); 2879 if (force || mLastConfiguration.diff(config) != 0) { 2880 final int lastLayoutDirection = mLastConfiguration.getLayoutDirection(); 2881 final int currentLayoutDirection = config.getLayoutDirection(); 2882 mLastConfiguration.setTo(config); 2883 if (lastLayoutDirection != currentLayoutDirection && 2884 mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) { 2885 mView.setLayoutDirection(currentLayoutDirection); 2886 } 2887 mView.dispatchConfigurationChanged(config); 2888 } 2889 } 2890 } 2891 2892 /** 2893 * Return true if child is an ancestor of parent, (or equal to the parent). 2894 */ 2895 public static boolean isViewDescendantOf(View child, View parent) { 2896 if (child == parent) { 2897 return true; 2898 } 2899 2900 final ViewParent theParent = child.getParent(); 2901 return (theParent instanceof ViewGroup) && isViewDescendantOf((View) theParent, parent); 2902 } 2903 2904 private static void forceLayout(View view) { 2905 view.forceLayout(); 2906 if (view instanceof ViewGroup) { 2907 ViewGroup group = (ViewGroup) view; 2908 final int count = group.getChildCount(); 2909 for (int i = 0; i < count; i++) { 2910 forceLayout(group.getChildAt(i)); 2911 } 2912 } 2913 } 2914 2915 private final static int MSG_INVALIDATE = 1; 2916 private final static int MSG_INVALIDATE_RECT = 2; 2917 private final static int MSG_DIE = 3; 2918 private final static int MSG_RESIZED = 4; 2919 private final static int MSG_RESIZED_REPORT = 5; 2920 private final static int MSG_WINDOW_FOCUS_CHANGED = 6; 2921 private final static int MSG_DISPATCH_KEY = 7; 2922 private final static int MSG_DISPATCH_APP_VISIBILITY = 8; 2923 private final static int MSG_DISPATCH_GET_NEW_SURFACE = 9; 2924 private final static int MSG_IME_FINISHED_EVENT = 10; 2925 private final static int MSG_DISPATCH_KEY_FROM_IME = 11; 2926 private final static int MSG_FINISH_INPUT_CONNECTION = 12; 2927 private final static int MSG_CHECK_FOCUS = 13; 2928 private final static int MSG_CLOSE_SYSTEM_DIALOGS = 14; 2929 private final static int MSG_DISPATCH_DRAG_EVENT = 15; 2930 private final static int MSG_DISPATCH_DRAG_LOCATION_EVENT = 16; 2931 private final static int MSG_DISPATCH_SYSTEM_UI_VISIBILITY = 17; 2932 private final static int MSG_UPDATE_CONFIGURATION = 18; 2933 private final static int MSG_PROCESS_INPUT_EVENTS = 19; 2934 private final static int MSG_DISPATCH_SCREEN_STATE = 20; 2935 private final static int MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST = 21; 2936 private final static int MSG_DISPATCH_DONE_ANIMATING = 22; 2937 private final static int MSG_INVALIDATE_WORLD = 23; 2938 private final static int MSG_WINDOW_MOVED = 24; 2939 2940 final class ViewRootHandler extends Handler { 2941 @Override 2942 public String getMessageName(Message message) { 2943 switch (message.what) { 2944 case MSG_INVALIDATE: 2945 return "MSG_INVALIDATE"; 2946 case MSG_INVALIDATE_RECT: 2947 return "MSG_INVALIDATE_RECT"; 2948 case MSG_DIE: 2949 return "MSG_DIE"; 2950 case MSG_RESIZED: 2951 return "MSG_RESIZED"; 2952 case MSG_RESIZED_REPORT: 2953 return "MSG_RESIZED_REPORT"; 2954 case MSG_WINDOW_FOCUS_CHANGED: 2955 return "MSG_WINDOW_FOCUS_CHANGED"; 2956 case MSG_DISPATCH_KEY: 2957 return "MSG_DISPATCH_KEY"; 2958 case MSG_DISPATCH_APP_VISIBILITY: 2959 return "MSG_DISPATCH_APP_VISIBILITY"; 2960 case MSG_DISPATCH_GET_NEW_SURFACE: 2961 return "MSG_DISPATCH_GET_NEW_SURFACE"; 2962 case MSG_IME_FINISHED_EVENT: 2963 return "MSG_IME_FINISHED_EVENT"; 2964 case MSG_DISPATCH_KEY_FROM_IME: 2965 return "MSG_DISPATCH_KEY_FROM_IME"; 2966 case MSG_FINISH_INPUT_CONNECTION: 2967 return "MSG_FINISH_INPUT_CONNECTION"; 2968 case MSG_CHECK_FOCUS: 2969 return "MSG_CHECK_FOCUS"; 2970 case MSG_CLOSE_SYSTEM_DIALOGS: 2971 return "MSG_CLOSE_SYSTEM_DIALOGS"; 2972 case MSG_DISPATCH_DRAG_EVENT: 2973 return "MSG_DISPATCH_DRAG_EVENT"; 2974 case MSG_DISPATCH_DRAG_LOCATION_EVENT: 2975 return "MSG_DISPATCH_DRAG_LOCATION_EVENT"; 2976 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: 2977 return "MSG_DISPATCH_SYSTEM_UI_VISIBILITY"; 2978 case MSG_UPDATE_CONFIGURATION: 2979 return "MSG_UPDATE_CONFIGURATION"; 2980 case MSG_PROCESS_INPUT_EVENTS: 2981 return "MSG_PROCESS_INPUT_EVENTS"; 2982 case MSG_DISPATCH_SCREEN_STATE: 2983 return "MSG_DISPATCH_SCREEN_STATE"; 2984 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: 2985 return "MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST"; 2986 case MSG_DISPATCH_DONE_ANIMATING: 2987 return "MSG_DISPATCH_DONE_ANIMATING"; 2988 case MSG_WINDOW_MOVED: 2989 return "MSG_WINDOW_MOVED"; 2990 } 2991 return super.getMessageName(message); 2992 } 2993 2994 @Override 2995 public void handleMessage(Message msg) { 2996 switch (msg.what) { 2997 case MSG_INVALIDATE: 2998 ((View) msg.obj).invalidate(); 2999 break; 3000 case MSG_INVALIDATE_RECT: 3001 final View.AttachInfo.InvalidateInfo info = (View.AttachInfo.InvalidateInfo) msg.obj; 3002 info.target.invalidate(info.left, info.top, info.right, info.bottom); 3003 info.recycle(); 3004 break; 3005 case MSG_IME_FINISHED_EVENT: 3006 handleImeFinishedEvent(msg.arg1, msg.arg2 != 0); 3007 break; 3008 case MSG_PROCESS_INPUT_EVENTS: 3009 mProcessInputEventsScheduled = false; 3010 doProcessInputEvents(); 3011 break; 3012 case MSG_DISPATCH_APP_VISIBILITY: 3013 handleAppVisibility(msg.arg1 != 0); 3014 break; 3015 case MSG_DISPATCH_GET_NEW_SURFACE: 3016 handleGetNewSurface(); 3017 break; 3018 case MSG_RESIZED: { 3019 // Recycled in the fall through... 3020 SomeArgs args = (SomeArgs) msg.obj; 3021 if (mWinFrame.equals(args.arg1) 3022 && mPendingOverscanInsets.equals(args.arg5) 3023 && mPendingContentInsets.equals(args.arg2) 3024 && mPendingVisibleInsets.equals(args.arg3) 3025 && args.arg4 == null) { 3026 break; 3027 } 3028 } // fall through... 3029 case MSG_RESIZED_REPORT: 3030 if (mAdded) { 3031 SomeArgs args = (SomeArgs) msg.obj; 3032 3033 Configuration config = (Configuration) args.arg4; 3034 if (config != null) { 3035 updateConfiguration(config, false); 3036 } 3037 3038 mWinFrame.set((Rect) args.arg1); 3039 mPendingOverscanInsets.set((Rect) args.arg5); 3040 mPendingContentInsets.set((Rect) args.arg2); 3041 mPendingVisibleInsets.set((Rect) args.arg3); 3042 3043 args.recycle(); 3044 3045 if (msg.what == MSG_RESIZED_REPORT) { 3046 mReportNextDraw = true; 3047 } 3048 3049 if (mView != null) { 3050 forceLayout(mView); 3051 } 3052 3053 requestLayout(); 3054 } 3055 break; 3056 case MSG_WINDOW_MOVED: 3057 if (mAdded) { 3058 final int w = mWinFrame.width(); 3059 final int h = mWinFrame.height(); 3060 final int l = msg.arg1; 3061 final int t = msg.arg2; 3062 mWinFrame.left = l; 3063 mWinFrame.right = l + w; 3064 mWinFrame.top = t; 3065 mWinFrame.bottom = t + h; 3066 3067 if (mView != null) { 3068 forceLayout(mView); 3069 } 3070 requestLayout(); 3071 } 3072 break; 3073 case MSG_WINDOW_FOCUS_CHANGED: { 3074 if (mAdded) { 3075 boolean hasWindowFocus = msg.arg1 != 0; 3076 mAttachInfo.mHasWindowFocus = hasWindowFocus; 3077 3078 profileRendering(hasWindowFocus); 3079 3080 if (hasWindowFocus) { 3081 boolean inTouchMode = msg.arg2 != 0; 3082 ensureTouchModeLocally(inTouchMode); 3083 3084 if (mAttachInfo.mHardwareRenderer != null && 3085 mSurface != null && mSurface.isValid()) { 3086 mFullRedrawNeeded = true; 3087 try { 3088 mAttachInfo.mHardwareRenderer.initializeIfNeeded( 3089 mWidth, mHeight, mHolder.getSurface()); 3090 } catch (Surface.OutOfResourcesException e) { 3091 Log.e(TAG, "OutOfResourcesException locking surface", e); 3092 try { 3093 if (!mWindowSession.outOfMemory(mWindow)) { 3094 Slog.w(TAG, "No processes killed for memory; killing self"); 3095 Process.killProcess(Process.myPid()); 3096 } 3097 } catch (RemoteException ex) { 3098 } 3099 // Retry in a bit. 3100 sendMessageDelayed(obtainMessage(msg.what, msg.arg1, msg.arg2), 500); 3101 return; 3102 } 3103 } 3104 } 3105 3106 mLastWasImTarget = WindowManager.LayoutParams 3107 .mayUseInputMethod(mWindowAttributes.flags); 3108 3109 InputMethodManager imm = InputMethodManager.peekInstance(); 3110 if (mView != null) { 3111 if (hasWindowFocus && imm != null && mLastWasImTarget) { 3112 imm.startGettingWindowFocus(mView); 3113 } 3114 mAttachInfo.mKeyDispatchState.reset(); 3115 mView.dispatchWindowFocusChanged(hasWindowFocus); 3116 mAttachInfo.mTreeObserver.dispatchOnWindowFocusChange(hasWindowFocus); 3117 } 3118 3119 // Note: must be done after the focus change callbacks, 3120 // so all of the view state is set up correctly. 3121 if (hasWindowFocus) { 3122 if (imm != null && mLastWasImTarget) { 3123 imm.onWindowFocus(mView, mView.findFocus(), 3124 mWindowAttributes.softInputMode, 3125 !mHasHadWindowFocus, mWindowAttributes.flags); 3126 } 3127 // Clear the forward bit. We can just do this directly, since 3128 // the window manager doesn't care about it. 3129 mWindowAttributes.softInputMode &= 3130 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3131 ((WindowManager.LayoutParams)mView.getLayoutParams()) 3132 .softInputMode &= 3133 ~WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; 3134 mHasHadWindowFocus = true; 3135 } 3136 3137 setAccessibilityFocus(null, null); 3138 3139 if (mView != null && mAccessibilityManager.isEnabled()) { 3140 if (hasWindowFocus) { 3141 mView.sendAccessibilityEvent( 3142 AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 3143 } 3144 } 3145 } 3146 } break; 3147 case MSG_DIE: 3148 doDie(); 3149 break; 3150 case MSG_DISPATCH_KEY: { 3151 KeyEvent event = (KeyEvent)msg.obj; 3152 enqueueInputEvent(event, null, 0, true); 3153 } break; 3154 case MSG_DISPATCH_KEY_FROM_IME: { 3155 if (LOCAL_LOGV) Log.v( 3156 TAG, "Dispatching key " 3157 + msg.obj + " from IME to " + mView); 3158 KeyEvent event = (KeyEvent)msg.obj; 3159 if ((event.getFlags()&KeyEvent.FLAG_FROM_SYSTEM) != 0) { 3160 // The IME is trying to say this event is from the 3161 // system! Bad bad bad! 3162 //noinspection UnusedAssignment 3163 event = KeyEvent.changeFlags(event, event.getFlags() & ~KeyEvent.FLAG_FROM_SYSTEM); 3164 } 3165 enqueueInputEvent(event, null, QueuedInputEvent.FLAG_DELIVER_POST_IME, true); 3166 } break; 3167 case MSG_FINISH_INPUT_CONNECTION: { 3168 InputMethodManager imm = InputMethodManager.peekInstance(); 3169 if (imm != null) { 3170 imm.reportFinishInputConnection((InputConnection)msg.obj); 3171 } 3172 } break; 3173 case MSG_CHECK_FOCUS: { 3174 InputMethodManager imm = InputMethodManager.peekInstance(); 3175 if (imm != null) { 3176 imm.checkFocus(); 3177 } 3178 } break; 3179 case MSG_CLOSE_SYSTEM_DIALOGS: { 3180 if (mView != null) { 3181 mView.onCloseSystemDialogs((String)msg.obj); 3182 } 3183 } break; 3184 case MSG_DISPATCH_DRAG_EVENT: 3185 case MSG_DISPATCH_DRAG_LOCATION_EVENT: { 3186 DragEvent event = (DragEvent)msg.obj; 3187 event.mLocalState = mLocalDragState; // only present when this app called startDrag() 3188 handleDragEvent(event); 3189 } break; 3190 case MSG_DISPATCH_SYSTEM_UI_VISIBILITY: { 3191 handleDispatchSystemUiVisibilityChanged((SystemUiVisibilityInfo) msg.obj); 3192 } break; 3193 case MSG_UPDATE_CONFIGURATION: { 3194 Configuration config = (Configuration)msg.obj; 3195 if (config.isOtherSeqNewer(mLastConfiguration)) { 3196 config = mLastConfiguration; 3197 } 3198 updateConfiguration(config, false); 3199 } break; 3200 case MSG_DISPATCH_SCREEN_STATE: { 3201 if (mView != null) { 3202 handleScreenStateChange(msg.arg1 == 1); 3203 } 3204 } break; 3205 case MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST: { 3206 setAccessibilityFocus(null, null); 3207 } break; 3208 case MSG_DISPATCH_DONE_ANIMATING: { 3209 handleDispatchDoneAnimating(); 3210 } break; 3211 case MSG_INVALIDATE_WORLD: { 3212 if (mView != null) { 3213 invalidateWorld(mView); 3214 } 3215 } break; 3216 } 3217 } 3218 } 3219 3220 final ViewRootHandler mHandler = new ViewRootHandler(); 3221 3222 /** 3223 * Something in the current window tells us we need to change the touch mode. For 3224 * example, we are not in touch mode, and the user touches the screen. 3225 * 3226 * If the touch mode has changed, tell the window manager, and handle it locally. 3227 * 3228 * @param inTouchMode Whether we want to be in touch mode. 3229 * @return True if the touch mode changed and focus changed was changed as a result 3230 */ 3231 boolean ensureTouchMode(boolean inTouchMode) { 3232 if (DBG) Log.d("touchmode", "ensureTouchMode(" + inTouchMode + "), current " 3233 + "touch mode is " + mAttachInfo.mInTouchMode); 3234 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3235 3236 // tell the window manager 3237 try { 3238 mWindowSession.setInTouchMode(inTouchMode); 3239 } catch (RemoteException e) { 3240 throw new RuntimeException(e); 3241 } 3242 3243 // handle the change 3244 return ensureTouchModeLocally(inTouchMode); 3245 } 3246 3247 /** 3248 * Ensure that the touch mode for this window is set, and if it is changing, 3249 * take the appropriate action. 3250 * @param inTouchMode Whether we want to be in touch mode. 3251 * @return True if the touch mode changed and focus changed was changed as a result 3252 */ 3253 private boolean ensureTouchModeLocally(boolean inTouchMode) { 3254 if (DBG) Log.d("touchmode", "ensureTouchModeLocally(" + inTouchMode + "), current " 3255 + "touch mode is " + mAttachInfo.mInTouchMode); 3256 3257 if (mAttachInfo.mInTouchMode == inTouchMode) return false; 3258 3259 mAttachInfo.mInTouchMode = inTouchMode; 3260 mAttachInfo.mTreeObserver.dispatchOnTouchModeChanged(inTouchMode); 3261 3262 return (inTouchMode) ? enterTouchMode() : leaveTouchMode(); 3263 } 3264 3265 private boolean enterTouchMode() { 3266 if (mView != null) { 3267 if (mView.hasFocus()) { 3268 // note: not relying on mFocusedView here because this could 3269 // be when the window is first being added, and mFocused isn't 3270 // set yet. 3271 final View focused = mView.findFocus(); 3272 if (focused != null && !focused.isFocusableInTouchMode()) { 3273 final ViewGroup ancestorToTakeFocus = 3274 findAncestorToTakeFocusInTouchMode(focused); 3275 if (ancestorToTakeFocus != null) { 3276 // there is an ancestor that wants focus after its descendants that 3277 // is focusable in touch mode.. give it focus 3278 return ancestorToTakeFocus.requestFocus(); 3279 } else { 3280 // nothing appropriate to have focus in touch mode, clear it out 3281 focused.unFocus(); 3282 return true; 3283 } 3284 } 3285 } 3286 } 3287 return false; 3288 } 3289 3290 /** 3291 * Find an ancestor of focused that wants focus after its descendants and is 3292 * focusable in touch mode. 3293 * @param focused The currently focused view. 3294 * @return An appropriate view, or null if no such view exists. 3295 */ 3296 private static ViewGroup findAncestorToTakeFocusInTouchMode(View focused) { 3297 ViewParent parent = focused.getParent(); 3298 while (parent instanceof ViewGroup) { 3299 final ViewGroup vgParent = (ViewGroup) parent; 3300 if (vgParent.getDescendantFocusability() == ViewGroup.FOCUS_AFTER_DESCENDANTS 3301 && vgParent.isFocusableInTouchMode()) { 3302 return vgParent; 3303 } 3304 if (vgParent.isRootNamespace()) { 3305 return null; 3306 } else { 3307 parent = vgParent.getParent(); 3308 } 3309 } 3310 return null; 3311 } 3312 3313 private boolean leaveTouchMode() { 3314 if (mView != null) { 3315 if (mView.hasFocus()) { 3316 View focusedView = mView.findFocus(); 3317 if (!(focusedView instanceof ViewGroup)) { 3318 // some view has focus, let it keep it 3319 return false; 3320 } else if (((ViewGroup) focusedView).getDescendantFocusability() != 3321 ViewGroup.FOCUS_AFTER_DESCENDANTS) { 3322 // some view group has focus, and doesn't prefer its children 3323 // over itself for focus, so let them keep it. 3324 return false; 3325 } 3326 } 3327 3328 // find the best view to give focus to in this brave new non-touch-mode 3329 // world 3330 final View focused = focusSearch(null, View.FOCUS_DOWN); 3331 if (focused != null) { 3332 return focused.requestFocus(View.FOCUS_DOWN); 3333 } 3334 } 3335 return false; 3336 } 3337 3338 private int deliverInputEvent(QueuedInputEvent q) { 3339 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEvent"); 3340 try { 3341 if (q.mEvent instanceof KeyEvent) { 3342 return deliverKeyEvent(q); 3343 } else { 3344 final int source = q.mEvent.getSource(); 3345 if ((source & InputDevice.SOURCE_CLASS_POINTER) != 0) { 3346 return deliverPointerEvent(q); 3347 } else if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3348 return deliverTrackballEvent(q); 3349 } else { 3350 return deliverGenericMotionEvent(q); 3351 } 3352 } 3353 } finally { 3354 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3355 } 3356 } 3357 3358 private int deliverInputEventPostIme(QueuedInputEvent q) { 3359 Trace.traceBegin(Trace.TRACE_TAG_VIEW, "deliverInputEventPostIme"); 3360 try { 3361 if (q.mEvent instanceof KeyEvent) { 3362 return deliverKeyEventPostIme(q); 3363 } else { 3364 final int source = q.mEvent.getSource(); 3365 if ((source & InputDevice.SOURCE_CLASS_TRACKBALL) != 0) { 3366 return deliverTrackballEventPostIme(q); 3367 } else { 3368 return deliverGenericMotionEventPostIme(q); 3369 } 3370 } 3371 } finally { 3372 Trace.traceEnd(Trace.TRACE_TAG_VIEW); 3373 } 3374 } 3375 3376 private int deliverPointerEvent(QueuedInputEvent q) { 3377 final MotionEvent event = (MotionEvent)q.mEvent; 3378 final boolean isTouchEvent = event.isTouchEvent(); 3379 if (mInputEventConsistencyVerifier != null) { 3380 if (isTouchEvent) { 3381 mInputEventConsistencyVerifier.onTouchEvent(event, 0); 3382 } else { 3383 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3384 } 3385 } 3386 3387 // If there is no view, then the event will not be handled. 3388 if (mView == null || !mAdded) { 3389 return EVENT_NOT_HANDLED; 3390 } 3391 3392 // Translate the pointer event for compatibility, if needed. 3393 if (mTranslator != null) { 3394 mTranslator.translateEventInScreenToAppWindow(event); 3395 } 3396 3397 // Enter touch mode on down or scroll. 3398 final int action = event.getAction(); 3399 if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) { 3400 ensureTouchMode(true); 3401 } 3402 3403 // Offset the scroll position. 3404 if (mCurScrollY != 0) { 3405 event.offsetLocation(0, mCurScrollY); 3406 } 3407 if (MEASURE_LATENCY) { 3408 lt.sample("A Dispatching PointerEvents", System.nanoTime() - event.getEventTimeNano()); 3409 } 3410 3411 // Remember the touch position for possible drag-initiation. 3412 if (isTouchEvent) { 3413 mLastTouchPoint.x = event.getRawX(); 3414 mLastTouchPoint.y = event.getRawY(); 3415 } 3416 3417 // Dispatch touch to view hierarchy. 3418 boolean handled = mView.dispatchPointerEvent(event); 3419 if (MEASURE_LATENCY) { 3420 lt.sample("B Dispatched PointerEvents ", System.nanoTime() - event.getEventTimeNano()); 3421 } 3422 return handled ? EVENT_HANDLED : EVENT_NOT_HANDLED; 3423 } 3424 3425 private int deliverTrackballEvent(QueuedInputEvent q) { 3426 final MotionEvent event = (MotionEvent)q.mEvent; 3427 if (mInputEventConsistencyVerifier != null) { 3428 mInputEventConsistencyVerifier.onTrackballEvent(event, 0); 3429 } 3430 3431 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3432 if (LOCAL_LOGV) 3433 Log.v(TAG, "Dispatching trackball " + event + " to " + mView); 3434 3435 // Dispatch to the IME before propagating down the view hierarchy. 3436 // The IME will eventually call back into handleImeFinishedEvent. 3437 if (mLastWasImTarget) { 3438 InputMethodManager imm = InputMethodManager.peekInstance(); 3439 if (imm != null) { 3440 final int seq = event.getSequenceNumber(); 3441 if (DEBUG_IMF) 3442 Log.v(TAG, "Sending trackball event to IME: seq=" 3443 + seq + " event=" + event); 3444 int result = imm.dispatchTrackballEvent(mView.getContext(), seq, event, 3445 mInputMethodCallback); 3446 if (result != EVENT_NOT_HANDLED) { 3447 return result; 3448 } 3449 } 3450 } 3451 } 3452 3453 // Not dispatching to IME, continue with post IME actions. 3454 return deliverTrackballEventPostIme(q); 3455 } 3456 3457 private int deliverTrackballEventPostIme(QueuedInputEvent q) { 3458 final MotionEvent event = (MotionEvent) q.mEvent; 3459 3460 // If there is no view, then the event will not be handled. 3461 if (mView == null || !mAdded) { 3462 return EVENT_NOT_HANDLED; 3463 } 3464 3465 // Deliver the trackball event to the view. 3466 if (mView.dispatchTrackballEvent(event)) { 3467 // If we reach this, we delivered a trackball event to mView and 3468 // mView consumed it. Because we will not translate the trackball 3469 // event into a key event, touch mode will not exit, so we exit 3470 // touch mode here. 3471 ensureTouchMode(false); 3472 mLastTrackballTime = Integer.MIN_VALUE; 3473 return EVENT_HANDLED; 3474 } 3475 3476 // Translate the trackball event into DPAD keys and try to deliver those. 3477 final TrackballAxis x = mTrackballAxisX; 3478 final TrackballAxis y = mTrackballAxisY; 3479 3480 long curTime = SystemClock.uptimeMillis(); 3481 if ((mLastTrackballTime + MAX_TRACKBALL_DELAY) < curTime) { 3482 // It has been too long since the last movement, 3483 // so restart at the beginning. 3484 x.reset(0); 3485 y.reset(0); 3486 mLastTrackballTime = curTime; 3487 } 3488 3489 final int action = event.getAction(); 3490 final int metaState = event.getMetaState(); 3491 switch (action) { 3492 case MotionEvent.ACTION_DOWN: 3493 x.reset(2); 3494 y.reset(2); 3495 enqueueInputEvent(new KeyEvent(curTime, curTime, 3496 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3497 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3498 InputDevice.SOURCE_KEYBOARD)); 3499 break; 3500 case MotionEvent.ACTION_UP: 3501 x.reset(2); 3502 y.reset(2); 3503 enqueueInputEvent(new KeyEvent(curTime, curTime, 3504 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DPAD_CENTER, 0, metaState, 3505 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3506 InputDevice.SOURCE_KEYBOARD)); 3507 break; 3508 } 3509 3510 if (DEBUG_TRACKBALL) Log.v(TAG, "TB X=" + x.position + " step=" 3511 + x.step + " dir=" + x.dir + " acc=" + x.acceleration 3512 + " move=" + event.getX() 3513 + " / Y=" + y.position + " step=" 3514 + y.step + " dir=" + y.dir + " acc=" + y.acceleration 3515 + " move=" + event.getY()); 3516 final float xOff = x.collect(event.getX(), event.getEventTime(), "X"); 3517 final float yOff = y.collect(event.getY(), event.getEventTime(), "Y"); 3518 3519 // Generate DPAD events based on the trackball movement. 3520 // We pick the axis that has moved the most as the direction of 3521 // the DPAD. When we generate DPAD events for one axis, then the 3522 // other axis is reset -- we don't want to perform DPAD jumps due 3523 // to slight movements in the trackball when making major movements 3524 // along the other axis. 3525 int keycode = 0; 3526 int movement = 0; 3527 float accel = 1; 3528 if (xOff > yOff) { 3529 movement = x.generate((2/event.getXPrecision())); 3530 if (movement != 0) { 3531 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_RIGHT 3532 : KeyEvent.KEYCODE_DPAD_LEFT; 3533 accel = x.acceleration; 3534 y.reset(2); 3535 } 3536 } else if (yOff > 0) { 3537 movement = y.generate((2/event.getYPrecision())); 3538 if (movement != 0) { 3539 keycode = movement > 0 ? KeyEvent.KEYCODE_DPAD_DOWN 3540 : KeyEvent.KEYCODE_DPAD_UP; 3541 accel = y.acceleration; 3542 x.reset(2); 3543 } 3544 } 3545 3546 if (keycode != 0) { 3547 if (movement < 0) movement = -movement; 3548 int accelMovement = (int)(movement * accel); 3549 if (DEBUG_TRACKBALL) Log.v(TAG, "Move: movement=" + movement 3550 + " accelMovement=" + accelMovement 3551 + " accel=" + accel); 3552 if (accelMovement > movement) { 3553 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3554 + keycode); 3555 movement--; 3556 int repeatCount = accelMovement - movement; 3557 enqueueInputEvent(new KeyEvent(curTime, curTime, 3558 KeyEvent.ACTION_MULTIPLE, keycode, repeatCount, metaState, 3559 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3560 InputDevice.SOURCE_KEYBOARD)); 3561 } 3562 while (movement > 0) { 3563 if (DEBUG_TRACKBALL) Log.v("foo", "Delivering fake DPAD: " 3564 + keycode); 3565 movement--; 3566 curTime = SystemClock.uptimeMillis(); 3567 enqueueInputEvent(new KeyEvent(curTime, curTime, 3568 KeyEvent.ACTION_DOWN, keycode, 0, metaState, 3569 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3570 InputDevice.SOURCE_KEYBOARD)); 3571 enqueueInputEvent(new KeyEvent(curTime, curTime, 3572 KeyEvent.ACTION_UP, keycode, 0, metaState, 3573 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_FALLBACK, 3574 InputDevice.SOURCE_KEYBOARD)); 3575 } 3576 mLastTrackballTime = curTime; 3577 } 3578 3579 // Unfortunately we can't tell whether the application consumed the keys, so 3580 // we always consider the trackball event handled. 3581 return EVENT_HANDLED; 3582 } 3583 3584 private int deliverGenericMotionEvent(QueuedInputEvent q) { 3585 final MotionEvent event = (MotionEvent)q.mEvent; 3586 if (mInputEventConsistencyVerifier != null) { 3587 mInputEventConsistencyVerifier.onGenericMotionEvent(event, 0); 3588 } 3589 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3590 if (LOCAL_LOGV) 3591 Log.v(TAG, "Dispatching generic motion " + event + " to " + mView); 3592 3593 // Dispatch to the IME before propagating down the view hierarchy. 3594 // The IME will eventually call back into handleImeFinishedEvent. 3595 if (mLastWasImTarget) { 3596 InputMethodManager imm = InputMethodManager.peekInstance(); 3597 if (imm != null) { 3598 final int seq = event.getSequenceNumber(); 3599 if (DEBUG_IMF) 3600 Log.v(TAG, "Sending generic motion event to IME: seq=" 3601 + seq + " event=" + event); 3602 int result = imm.dispatchGenericMotionEvent(mView.getContext(), seq, event, 3603 mInputMethodCallback); 3604 if (result != EVENT_NOT_HANDLED) { 3605 return result; 3606 } 3607 } 3608 } 3609 } 3610 3611 // Not dispatching to IME, continue with post IME actions. 3612 return deliverGenericMotionEventPostIme(q); 3613 } 3614 3615 private int deliverGenericMotionEventPostIme(QueuedInputEvent q) { 3616 final MotionEvent event = (MotionEvent) q.mEvent; 3617 final int source = event.getSource(); 3618 final boolean isJoystick = event.isFromSource(InputDevice.SOURCE_CLASS_JOYSTICK); 3619 final boolean isTouchNavigation = event.isFromSource(InputDevice.SOURCE_TOUCH_NAVIGATION); 3620 3621 // If there is no view, then the event will not be handled. 3622 if (mView == null || !mAdded) { 3623 if (isJoystick) { 3624 updateJoystickDirection(event, false); 3625 } else if (isTouchNavigation) { 3626 mSimulatedDpad.updateTouchNavigation(this, event, false); 3627 } 3628 return EVENT_NOT_HANDLED; 3629 } 3630 3631 // Deliver the event to the view. 3632 if (mView.dispatchGenericMotionEvent(event)) { 3633 if (isJoystick) { 3634 updateJoystickDirection(event, false); 3635 } else if (isTouchNavigation) { 3636 mSimulatedDpad.updateTouchNavigation(this, event, false); 3637 } 3638 return EVENT_HANDLED; 3639 } 3640 3641 if (isJoystick) { 3642 // Translate the joystick event into DPAD keys and try to deliver 3643 // those. 3644 updateJoystickDirection(event, true); 3645 return EVENT_HANDLED; 3646 } 3647 if (isTouchNavigation) { 3648 mSimulatedDpad.updateTouchNavigation(this, event, true); 3649 return EVENT_HANDLED; 3650 } 3651 return EVENT_NOT_HANDLED; 3652 } 3653 3654 private void updateJoystickDirection(MotionEvent event, boolean synthesizeNewKeys) { 3655 final long time = event.getEventTime(); 3656 final int metaState = event.getMetaState(); 3657 final int deviceId = event.getDeviceId(); 3658 final int source = event.getSource(); 3659 3660 int xDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_X)); 3661 if (xDirection == 0) { 3662 xDirection = joystickAxisValueToDirection(event.getX()); 3663 } 3664 3665 int yDirection = joystickAxisValueToDirection(event.getAxisValue(MotionEvent.AXIS_HAT_Y)); 3666 if (yDirection == 0) { 3667 yDirection = joystickAxisValueToDirection(event.getY()); 3668 } 3669 3670 if (xDirection != mLastJoystickXDirection) { 3671 if (mLastJoystickXKeyCode != 0) { 3672 enqueueInputEvent(new KeyEvent(time, time, 3673 KeyEvent.ACTION_UP, mLastJoystickXKeyCode, 0, metaState, 3674 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3675 mLastJoystickXKeyCode = 0; 3676 } 3677 3678 mLastJoystickXDirection = xDirection; 3679 3680 if (xDirection != 0 && synthesizeNewKeys) { 3681 mLastJoystickXKeyCode = xDirection > 0 3682 ? KeyEvent.KEYCODE_DPAD_RIGHT : KeyEvent.KEYCODE_DPAD_LEFT; 3683 enqueueInputEvent(new KeyEvent(time, time, 3684 KeyEvent.ACTION_DOWN, mLastJoystickXKeyCode, 0, metaState, 3685 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3686 } 3687 } 3688 3689 if (yDirection != mLastJoystickYDirection) { 3690 if (mLastJoystickYKeyCode != 0) { 3691 enqueueInputEvent(new KeyEvent(time, time, 3692 KeyEvent.ACTION_UP, mLastJoystickYKeyCode, 0, metaState, 3693 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3694 mLastJoystickYKeyCode = 0; 3695 } 3696 3697 mLastJoystickYDirection = yDirection; 3698 3699 if (yDirection != 0 && synthesizeNewKeys) { 3700 mLastJoystickYKeyCode = yDirection > 0 3701 ? KeyEvent.KEYCODE_DPAD_DOWN : KeyEvent.KEYCODE_DPAD_UP; 3702 enqueueInputEvent(new KeyEvent(time, time, 3703 KeyEvent.ACTION_DOWN, mLastJoystickYKeyCode, 0, metaState, 3704 deviceId, 0, KeyEvent.FLAG_FALLBACK, source)); 3705 } 3706 } 3707 } 3708 3709 private static int joystickAxisValueToDirection(float value) { 3710 if (value >= 0.5f) { 3711 return 1; 3712 } else if (value <= -0.5f) { 3713 return -1; 3714 } else { 3715 return 0; 3716 } 3717 } 3718 3719 /** 3720 * Returns true if the key is used for keyboard navigation. 3721 * @param keyEvent The key event. 3722 * @return True if the key is used for keyboard navigation. 3723 */ 3724 private static boolean isNavigationKey(KeyEvent keyEvent) { 3725 switch (keyEvent.getKeyCode()) { 3726 case KeyEvent.KEYCODE_DPAD_LEFT: 3727 case KeyEvent.KEYCODE_DPAD_RIGHT: 3728 case KeyEvent.KEYCODE_DPAD_UP: 3729 case KeyEvent.KEYCODE_DPAD_DOWN: 3730 case KeyEvent.KEYCODE_DPAD_CENTER: 3731 case KeyEvent.KEYCODE_PAGE_UP: 3732 case KeyEvent.KEYCODE_PAGE_DOWN: 3733 case KeyEvent.KEYCODE_MOVE_HOME: 3734 case KeyEvent.KEYCODE_MOVE_END: 3735 case KeyEvent.KEYCODE_TAB: 3736 case KeyEvent.KEYCODE_SPACE: 3737 case KeyEvent.KEYCODE_ENTER: 3738 return true; 3739 } 3740 return false; 3741 } 3742 3743 /** 3744 * Returns true if the key is used for typing. 3745 * @param keyEvent The key event. 3746 * @return True if the key is used for typing. 3747 */ 3748 private static boolean isTypingKey(KeyEvent keyEvent) { 3749 return keyEvent.getUnicodeChar() > 0; 3750 } 3751 3752 /** 3753 * See if the key event means we should leave touch mode (and leave touch mode if so). 3754 * @param event The key event. 3755 * @return Whether this key event should be consumed (meaning the act of 3756 * leaving touch mode alone is considered the event). 3757 */ 3758 private boolean checkForLeavingTouchModeAndConsume(KeyEvent event) { 3759 // Only relevant in touch mode. 3760 if (!mAttachInfo.mInTouchMode) { 3761 return false; 3762 } 3763 3764 // Only consider leaving touch mode on DOWN or MULTIPLE actions, never on UP. 3765 final int action = event.getAction(); 3766 if (action != KeyEvent.ACTION_DOWN && action != KeyEvent.ACTION_MULTIPLE) { 3767 return false; 3768 } 3769 3770 // Don't leave touch mode if the IME told us not to. 3771 if ((event.getFlags() & KeyEvent.FLAG_KEEP_TOUCH_MODE) != 0) { 3772 return false; 3773 } 3774 3775 // If the key can be used for keyboard navigation then leave touch mode 3776 // and select a focused view if needed (in ensureTouchMode). 3777 // When a new focused view is selected, we consume the navigation key because 3778 // navigation doesn't make much sense unless a view already has focus so 3779 // the key's purpose is to set focus. 3780 if (isNavigationKey(event)) { 3781 return ensureTouchMode(false); 3782 } 3783 3784 // If the key can be used for typing then leave touch mode 3785 // and select a focused view if needed (in ensureTouchMode). 3786 // Always allow the view to process the typing key. 3787 if (isTypingKey(event)) { 3788 ensureTouchMode(false); 3789 return false; 3790 } 3791 3792 return false; 3793 } 3794 3795 private int deliverKeyEvent(QueuedInputEvent q) { 3796 final KeyEvent event = (KeyEvent)q.mEvent; 3797 if (mInputEventConsistencyVerifier != null) { 3798 mInputEventConsistencyVerifier.onKeyEvent(event, 0); 3799 } 3800 3801 if (mView != null && mAdded && (q.mFlags & QueuedInputEvent.FLAG_DELIVER_POST_IME) == 0) { 3802 if (LOCAL_LOGV) Log.v(TAG, "Dispatching key " + event + " to " + mView); 3803 3804 // Perform predispatching before the IME. 3805 if (mView.dispatchKeyEventPreIme(event)) { 3806 return EVENT_HANDLED; 3807 } 3808 3809 // Dispatch to the IME before propagating down the view hierarchy. 3810 // The IME will eventually call back into handleImeFinishedEvent. 3811 if (mLastWasImTarget) { 3812 InputMethodManager imm = InputMethodManager.peekInstance(); 3813 if (imm != null) { 3814 final int seq = event.getSequenceNumber(); 3815 if (DEBUG_IMF) Log.v(TAG, "Sending key event to IME: seq=" 3816 + seq + " event=" + event); 3817 int result = imm.dispatchKeyEvent(mView.getContext(), seq, event, 3818 mInputMethodCallback); 3819 if (result != EVENT_NOT_HANDLED) { 3820 return result; 3821 } 3822 } 3823 } 3824 } 3825 3826 // Not dispatching to IME, continue with post IME actions. 3827 return deliverKeyEventPostIme(q); 3828 } 3829 3830 private int deliverKeyEventPostIme(QueuedInputEvent q) { 3831 final KeyEvent event = (KeyEvent)q.mEvent; 3832 3833 // If the view went away, then the event will not be handled. 3834 if (mView == null || !mAdded) { 3835 return EVENT_NOT_HANDLED; 3836 } 3837 3838 // If the key's purpose is to exit touch mode then we consume it and consider it handled. 3839 if (checkForLeavingTouchModeAndConsume(event)) { 3840 return EVENT_HANDLED; 3841 } 3842 3843 // Make sure the fallback event policy sees all keys that will be delivered to the 3844 // view hierarchy. 3845 mFallbackEventHandler.preDispatchKeyEvent(event); 3846 3847 // Deliver the key to the view hierarchy. 3848 if (mView.dispatchKeyEvent(event)) { 3849 return EVENT_HANDLED; 3850 } 3851 3852 // If the Control modifier is held, try to interpret the key as a shortcut. 3853 if (event.getAction() == KeyEvent.ACTION_DOWN 3854 && event.isCtrlPressed() 3855 && event.getRepeatCount() == 0 3856 && !KeyEvent.isModifierKey(event.getKeyCode())) { 3857 if (mView.dispatchKeyShortcutEvent(event)) { 3858 return EVENT_HANDLED; 3859 } 3860 } 3861 3862 // Apply the fallback event policy. 3863 if (mFallbackEventHandler.dispatchKeyEvent(event)) { 3864 return EVENT_HANDLED; 3865 } 3866 3867 // Handle automatic focus changes. 3868 if (event.getAction() == KeyEvent.ACTION_DOWN) { 3869 int direction = 0; 3870 switch (event.getKeyCode()) { 3871 case KeyEvent.KEYCODE_DPAD_LEFT: 3872 if (event.hasNoModifiers()) { 3873 direction = View.FOCUS_LEFT; 3874 } 3875 break; 3876 case KeyEvent.KEYCODE_DPAD_RIGHT: 3877 if (event.hasNoModifiers()) { 3878 direction = View.FOCUS_RIGHT; 3879 } 3880 break; 3881 case KeyEvent.KEYCODE_DPAD_UP: 3882 if (event.hasNoModifiers()) { 3883 direction = View.FOCUS_UP; 3884 } 3885 break; 3886 case KeyEvent.KEYCODE_DPAD_DOWN: 3887 if (event.hasNoModifiers()) { 3888 direction = View.FOCUS_DOWN; 3889 } 3890 break; 3891 case KeyEvent.KEYCODE_TAB: 3892 if (event.hasNoModifiers()) { 3893 direction = View.FOCUS_FORWARD; 3894 } else if (event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 3895 direction = View.FOCUS_BACKWARD; 3896 } 3897 break; 3898 } 3899 if (direction != 0) { 3900 View focused = mView.findFocus(); 3901 if (focused != null) { 3902 View v = focused.focusSearch(direction); 3903 if (v != null && v != focused) { 3904 // do the math the get the interesting rect 3905 // of previous focused into the coord system of 3906 // newly focused view 3907 focused.getFocusedRect(mTempRect); 3908 if (mView instanceof ViewGroup) { 3909 ((ViewGroup) mView).offsetDescendantRectToMyCoords( 3910 focused, mTempRect); 3911 ((ViewGroup) mView).offsetRectIntoDescendantCoords( 3912 v, mTempRect); 3913 } 3914 if (v.requestFocus(direction, mTempRect)) { 3915 playSoundEffect(SoundEffectConstants 3916 .getContantForFocusDirection(direction)); 3917 return EVENT_HANDLED; 3918 } 3919 } 3920 3921 // Give the focused view a last chance to handle the dpad key. 3922 if (mView.dispatchUnhandledMove(focused, direction)) { 3923 return EVENT_HANDLED; 3924 } 3925 } else { 3926 // find the best view to give focus to in this non-touch-mode with no-focus 3927 View v = focusSearch(null, direction); 3928 if (v != null && v.requestFocus(direction)) { 3929 return EVENT_HANDLED; 3930 } 3931 } 3932 } 3933 } 3934 3935 // Key was unhandled. 3936 return EVENT_NOT_HANDLED; 3937 } 3938 3939 /* drag/drop */ 3940 void setLocalDragState(Object obj) { 3941 mLocalDragState = obj; 3942 } 3943 3944 private void handleDragEvent(DragEvent event) { 3945 // From the root, only drag start/end/location are dispatched. entered/exited 3946 // are determined and dispatched by the viewgroup hierarchy, who then report 3947 // that back here for ultimate reporting back to the framework. 3948 if (mView != null && mAdded) { 3949 final int what = event.mAction; 3950 3951 if (what == DragEvent.ACTION_DRAG_EXITED) { 3952 // A direct EXITED event means that the window manager knows we've just crossed 3953 // a window boundary, so the current drag target within this one must have 3954 // just been exited. Send it the usual notifications and then we're done 3955 // for now. 3956 mView.dispatchDragEvent(event); 3957 } else { 3958 // Cache the drag description when the operation starts, then fill it in 3959 // on subsequent calls as a convenience 3960 if (what == DragEvent.ACTION_DRAG_STARTED) { 3961 mCurrentDragView = null; // Start the current-recipient tracking 3962 mDragDescription = event.mClipDescription; 3963 } else { 3964 event.mClipDescription = mDragDescription; 3965 } 3966 3967 // For events with a [screen] location, translate into window coordinates 3968 if ((what == DragEvent.ACTION_DRAG_LOCATION) || (what == DragEvent.ACTION_DROP)) { 3969 mDragPoint.set(event.mX, event.mY); 3970 if (mTranslator != null) { 3971 mTranslator.translatePointInScreenToAppWindow(mDragPoint); 3972 } 3973 3974 if (mCurScrollY != 0) { 3975 mDragPoint.offset(0, mCurScrollY); 3976 } 3977 3978 event.mX = mDragPoint.x; 3979 event.mY = mDragPoint.y; 3980 } 3981 3982 // Remember who the current drag target is pre-dispatch 3983 final View prevDragView = mCurrentDragView; 3984 3985 // Now dispatch the drag/drop event 3986 boolean result = mView.dispatchDragEvent(event); 3987 3988 // If we changed apparent drag target, tell the OS about it 3989 if (prevDragView != mCurrentDragView) { 3990 try { 3991 if (prevDragView != null) { 3992 mWindowSession.dragRecipientExited(mWindow); 3993 } 3994 if (mCurrentDragView != null) { 3995 mWindowSession.dragRecipientEntered(mWindow); 3996 } 3997 } catch (RemoteException e) { 3998 Slog.e(TAG, "Unable to note drag target change"); 3999 } 4000 } 4001 4002 // Report the drop result when we're done 4003 if (what == DragEvent.ACTION_DROP) { 4004 mDragDescription = null; 4005 try { 4006 Log.i(TAG, "Reporting drop result: " + result); 4007 mWindowSession.reportDropResult(mWindow, result); 4008 } catch (RemoteException e) { 4009 Log.e(TAG, "Unable to report drop result"); 4010 } 4011 } 4012 4013 // When the drag operation ends, release any local state object 4014 // that may have been in use 4015 if (what == DragEvent.ACTION_DRAG_ENDED) { 4016 setLocalDragState(null); 4017 } 4018 } 4019 } 4020 event.recycle(); 4021 } 4022 4023 public void handleDispatchSystemUiVisibilityChanged(SystemUiVisibilityInfo args) { 4024 if (mSeq != args.seq) { 4025 // The sequence has changed, so we need to update our value and make 4026 // sure to do a traversal afterward so the window manager is given our 4027 // most recent data. 4028 mSeq = args.seq; 4029 mAttachInfo.mForceReportNewAttributes = true; 4030 scheduleTraversals(); 4031 } 4032 if (mView == null) return; 4033 if (args.localChanges != 0) { 4034 mView.updateLocalSystemUiVisibility(args.localValue, args.localChanges); 4035 } 4036 if (mAttachInfo != null) { 4037 int visibility = args.globalVisibility&View.SYSTEM_UI_CLEARABLE_FLAGS; 4038 if (visibility != mAttachInfo.mGlobalSystemUiVisibility) { 4039 mAttachInfo.mGlobalSystemUiVisibility = visibility; 4040 mView.dispatchSystemUiVisibilityChanged(visibility); 4041 } 4042 } 4043 } 4044 4045 public void handleDispatchDoneAnimating() { 4046 if (mWindowsAnimating) { 4047 mWindowsAnimating = false; 4048 if (!mDirty.isEmpty() || mIsAnimating) { 4049 scheduleTraversals(); 4050 } 4051 } 4052 } 4053 4054 public void getLastTouchPoint(Point outLocation) { 4055 outLocation.x = (int) mLastTouchPoint.x; 4056 outLocation.y = (int) mLastTouchPoint.y; 4057 } 4058 4059 public void setDragFocus(View newDragTarget) { 4060 if (mCurrentDragView != newDragTarget) { 4061 mCurrentDragView = newDragTarget; 4062 } 4063 } 4064 4065 private AudioManager getAudioManager() { 4066 if (mView == null) { 4067 throw new IllegalStateException("getAudioManager called when there is no mView"); 4068 } 4069 if (mAudioManager == null) { 4070 mAudioManager = (AudioManager) mView.getContext().getSystemService(Context.AUDIO_SERVICE); 4071 } 4072 return mAudioManager; 4073 } 4074 4075 public AccessibilityInteractionController getAccessibilityInteractionController() { 4076 if (mView == null) { 4077 throw new IllegalStateException("getAccessibilityInteractionController" 4078 + " called when there is no mView"); 4079 } 4080 if (mAccessibilityInteractionController == null) { 4081 mAccessibilityInteractionController = new AccessibilityInteractionController(this); 4082 } 4083 return mAccessibilityInteractionController; 4084 } 4085 4086 private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility, 4087 boolean insetsPending) throws RemoteException { 4088 4089 float appScale = mAttachInfo.mApplicationScale; 4090 boolean restore = false; 4091 if (params != null && mTranslator != null) { 4092 restore = true; 4093 params.backup(); 4094 mTranslator.translateWindowLayout(params); 4095 } 4096 if (params != null) { 4097 if (DBG) Log.d(TAG, "WindowLayout in layoutWindow:" + params); 4098 } 4099 mPendingConfiguration.seq = 0; 4100 //Log.d(TAG, ">>>>>> CALLING relayout"); 4101 if (params != null && mOrigWindowType != params.type) { 4102 // For compatibility with old apps, don't crash here. 4103 if (mTargetSdkVersion < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { 4104 Slog.w(TAG, "Window type can not be changed after " 4105 + "the window is added; ignoring change of " + mView); 4106 params.type = mOrigWindowType; 4107 } 4108 } 4109 int relayoutResult = mWindowSession.relayout( 4110 mWindow, mSeq, params, 4111 (int) (mView.getMeasuredWidth() * appScale + 0.5f), 4112 (int) (mView.getMeasuredHeight() * appScale + 0.5f), 4113 viewVisibility, insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, 4114 mWinFrame, mPendingOverscanInsets, mPendingContentInsets, mPendingVisibleInsets, 4115 mPendingConfiguration, mSurface); 4116 //Log.d(TAG, "<<<<<< BACK FROM relayout"); 4117 if (restore) { 4118 params.restore(); 4119 } 4120 4121 if (mTranslator != null) { 4122 mTranslator.translateRectInScreenToAppWinFrame(mWinFrame); 4123 mTranslator.translateRectInScreenToAppWindow(mPendingOverscanInsets); 4124 mTranslator.translateRectInScreenToAppWindow(mPendingContentInsets); 4125 mTranslator.translateRectInScreenToAppWindow(mPendingVisibleInsets); 4126 } 4127 return relayoutResult; 4128 } 4129 4130 /** 4131 * {@inheritDoc} 4132 */ 4133 public void playSoundEffect(int effectId) { 4134 checkThread(); 4135 4136 try { 4137 final AudioManager audioManager = getAudioManager(); 4138 4139 switch (effectId) { 4140 case SoundEffectConstants.CLICK: 4141 audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK); 4142 return; 4143 case SoundEffectConstants.NAVIGATION_DOWN: 4144 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_DOWN); 4145 return; 4146 case SoundEffectConstants.NAVIGATION_LEFT: 4147 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_LEFT); 4148 return; 4149 case SoundEffectConstants.NAVIGATION_RIGHT: 4150 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_RIGHT); 4151 return; 4152 case SoundEffectConstants.NAVIGATION_UP: 4153 audioManager.playSoundEffect(AudioManager.FX_FOCUS_NAVIGATION_UP); 4154 return; 4155 default: 4156 throw new IllegalArgumentException("unknown effect id " + effectId + 4157 " not defined in " + SoundEffectConstants.class.getCanonicalName()); 4158 } 4159 } catch (IllegalStateException e) { 4160 // Exception thrown by getAudioManager() when mView is null 4161 Log.e(TAG, "FATAL EXCEPTION when attempting to play sound effect: " + e); 4162 e.printStackTrace(); 4163 } 4164 } 4165 4166 /** 4167 * {@inheritDoc} 4168 */ 4169 public boolean performHapticFeedback(int effectId, boolean always) { 4170 try { 4171 return mWindowSession.performHapticFeedback(mWindow, effectId, always); 4172 } catch (RemoteException e) { 4173 return false; 4174 } 4175 } 4176 4177 /** 4178 * {@inheritDoc} 4179 */ 4180 public View focusSearch(View focused, int direction) { 4181 checkThread(); 4182 if (!(mView instanceof ViewGroup)) { 4183 return null; 4184 } 4185 return FocusFinder.getInstance().findNextFocus((ViewGroup) mView, focused, direction); 4186 } 4187 4188 public void debug() { 4189 mView.debug(); 4190 } 4191 4192 public void dumpGfxInfo(int[] info) { 4193 info[0] = info[1] = 0; 4194 if (mView != null) { 4195 getGfxInfo(mView, info); 4196 } 4197 } 4198 4199 private static void getGfxInfo(View view, int[] info) { 4200 DisplayList displayList = view.mDisplayList; 4201 info[0]++; 4202 if (displayList != null) { 4203 info[1] += displayList.getSize(); 4204 } 4205 4206 if (view instanceof ViewGroup) { 4207 ViewGroup group = (ViewGroup) view; 4208 4209 int count = group.getChildCount(); 4210 for (int i = 0; i < count; i++) { 4211 getGfxInfo(group.getChildAt(i), info); 4212 } 4213 } 4214 } 4215 4216 public void die(boolean immediate) { 4217 // Make sure we do execute immediately if we are in the middle of a traversal or the damage 4218 // done by dispatchDetachedFromWindow will cause havoc on return. 4219 if (immediate && !mIsInTraversal) { 4220 doDie(); 4221 } else { 4222 if (!mIsDrawing) { 4223 destroyHardwareRenderer(); 4224 } else { 4225 Log.e(TAG, "Attempting to destroy the window while drawing!\n" + 4226 " window=" + this + ", title=" + mWindowAttributes.getTitle()); 4227 } 4228 mHandler.sendEmptyMessage(MSG_DIE); 4229 } 4230 } 4231 4232 void doDie() { 4233 checkThread(); 4234 if (LOCAL_LOGV) Log.v(TAG, "DIE in " + this + " of " + mSurface); 4235 synchronized (this) { 4236 if (mAdded) { 4237 dispatchDetachedFromWindow(); 4238 } 4239 4240 if (mAdded && !mFirst) { 4241 invalidateDisplayLists(); 4242 destroyHardwareRenderer(); 4243 4244 if (mView != null) { 4245 int viewVisibility = mView.getVisibility(); 4246 boolean viewVisibilityChanged = mViewVisibility != viewVisibility; 4247 if (mWindowAttributesChanged || viewVisibilityChanged) { 4248 // If layout params have been changed, first give them 4249 // to the window manager to make sure it has the correct 4250 // animation info. 4251 try { 4252 if ((relayoutWindow(mWindowAttributes, viewVisibility, false) 4253 & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) { 4254 mWindowSession.finishDrawing(mWindow); 4255 } 4256 } catch (RemoteException e) { 4257 } 4258 } 4259 4260 mSurface.release(); 4261 } 4262 } 4263 4264 mAdded = false; 4265 } 4266 } 4267 4268 public void requestUpdateConfiguration(Configuration config) { 4269 Message msg = mHandler.obtainMessage(MSG_UPDATE_CONFIGURATION, config); 4270 mHandler.sendMessage(msg); 4271 } 4272 4273 public void loadSystemProperties() { 4274 mHandler.post(new Runnable() { 4275 @Override 4276 public void run() { 4277 // Profiling 4278 mProfileRendering = SystemProperties.getBoolean(PROPERTY_PROFILE_RENDERING, false); 4279 profileRendering(mAttachInfo.mHasWindowFocus); 4280 4281 // Hardware rendering 4282 if (mAttachInfo.mHardwareRenderer != null) { 4283 if (mAttachInfo.mHardwareRenderer.loadSystemProperties(mHolder.getSurface())) { 4284 invalidate(); 4285 } 4286 } 4287 4288 // Layout debugging 4289 boolean layout = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false); 4290 if (layout != mAttachInfo.mDebugLayout) { 4291 mAttachInfo.mDebugLayout = layout; 4292 if (!mHandler.hasMessages(MSG_INVALIDATE_WORLD)) { 4293 mHandler.sendEmptyMessageDelayed(MSG_INVALIDATE_WORLD, 200); 4294 } 4295 } 4296 } 4297 }); 4298 } 4299 4300 private void destroyHardwareRenderer() { 4301 AttachInfo attachInfo = mAttachInfo; 4302 HardwareRenderer hardwareRenderer = attachInfo.mHardwareRenderer; 4303 4304 if (hardwareRenderer != null) { 4305 if (mView != null) { 4306 hardwareRenderer.destroyHardwareResources(mView); 4307 } 4308 hardwareRenderer.destroy(true); 4309 hardwareRenderer.setRequested(false); 4310 4311 attachInfo.mHardwareRenderer = null; 4312 attachInfo.mHardwareAccelerated = false; 4313 } 4314 } 4315 4316 void dispatchImeFinishedEvent(int seq, boolean handled) { 4317 Message msg = mHandler.obtainMessage(MSG_IME_FINISHED_EVENT); 4318 msg.arg1 = seq; 4319 msg.arg2 = handled ? 1 : 0; 4320 msg.setAsynchronous(true); 4321 mHandler.sendMessage(msg); 4322 } 4323 4324 public void dispatchFinishInputConnection(InputConnection connection) { 4325 Message msg = mHandler.obtainMessage(MSG_FINISH_INPUT_CONNECTION, connection); 4326 mHandler.sendMessage(msg); 4327 } 4328 4329 public void dispatchResized(Rect frame, Rect overscanInsets, Rect contentInsets, 4330 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 4331 if (DEBUG_LAYOUT) Log.v(TAG, "Resizing " + this + ": frame=" + frame.toShortString() 4332 + " contentInsets=" + contentInsets.toShortString() 4333 + " visibleInsets=" + visibleInsets.toShortString() 4334 + " reportDraw=" + reportDraw); 4335 Message msg = mHandler.obtainMessage(reportDraw ? MSG_RESIZED_REPORT : MSG_RESIZED); 4336 if (mTranslator != null) { 4337 mTranslator.translateRectInScreenToAppWindow(frame); 4338 mTranslator.translateRectInScreenToAppWindow(overscanInsets); 4339 mTranslator.translateRectInScreenToAppWindow(contentInsets); 4340 mTranslator.translateRectInScreenToAppWindow(visibleInsets); 4341 } 4342 SomeArgs args = SomeArgs.obtain(); 4343 final boolean sameProcessCall = (Binder.getCallingPid() == android.os.Process.myPid()); 4344 args.arg1 = sameProcessCall ? new Rect(frame) : frame; 4345 args.arg2 = sameProcessCall ? new Rect(contentInsets) : contentInsets; 4346 args.arg3 = sameProcessCall ? new Rect(visibleInsets) : visibleInsets; 4347 args.arg4 = sameProcessCall && newConfig != null ? new Configuration(newConfig) : newConfig; 4348 args.arg5 = sameProcessCall ? new Rect(overscanInsets) : overscanInsets; 4349 msg.obj = args; 4350 mHandler.sendMessage(msg); 4351 } 4352 4353 public void dispatchMoved(int newX, int newY) { 4354 if (DEBUG_LAYOUT) Log.v(TAG, "Window moved " + this + ": newX=" + newX + " newY=" + newY); 4355 if (mTranslator != null) { 4356 PointF point = new PointF(newX, newY); 4357 mTranslator.translatePointInScreenToAppWindow(point); 4358 newX = (int) (point.x + 0.5); 4359 newY = (int) (point.y + 0.5); 4360 } 4361 Message msg = mHandler.obtainMessage(MSG_WINDOW_MOVED, newX, newY); 4362 mHandler.sendMessage(msg); 4363 } 4364 4365 /** 4366 * Represents a pending input event that is waiting in a queue. 4367 * 4368 * Input events are processed in serial order by the timestamp specified by 4369 * {@link InputEvent#getEventTimeNano()}. In general, the input dispatcher delivers 4370 * one input event to the application at a time and waits for the application 4371 * to finish handling it before delivering the next one. 4372 * 4373 * However, because the application or IME can synthesize and inject multiple 4374 * key events at a time without going through the input dispatcher, we end up 4375 * needing a queue on the application's side. 4376 */ 4377 private static final class QueuedInputEvent { 4378 public static final int FLAG_DELIVER_POST_IME = 1; 4379 4380 public QueuedInputEvent mNext; 4381 4382 public InputEvent mEvent; 4383 public InputEventReceiver mReceiver; 4384 public int mFlags; 4385 } 4386 4387 private QueuedInputEvent obtainQueuedInputEvent(InputEvent event, 4388 InputEventReceiver receiver, int flags) { 4389 QueuedInputEvent q = mQueuedInputEventPool; 4390 if (q != null) { 4391 mQueuedInputEventPoolSize -= 1; 4392 mQueuedInputEventPool = q.mNext; 4393 q.mNext = null; 4394 } else { 4395 q = new QueuedInputEvent(); 4396 } 4397 4398 q.mEvent = event; 4399 q.mReceiver = receiver; 4400 q.mFlags = flags; 4401 return q; 4402 } 4403 4404 private void recycleQueuedInputEvent(QueuedInputEvent q) { 4405 q.mEvent = null; 4406 q.mReceiver = null; 4407 4408 if (mQueuedInputEventPoolSize < MAX_QUEUED_INPUT_EVENT_POOL_SIZE) { 4409 mQueuedInputEventPoolSize += 1; 4410 q.mNext = mQueuedInputEventPool; 4411 mQueuedInputEventPool = q; 4412 } 4413 } 4414 4415 void enqueueInputEvent(InputEvent event) { 4416 enqueueInputEvent(event, null, 0, false); 4417 } 4418 4419 void enqueueInputEvent(InputEvent event, 4420 InputEventReceiver receiver, int flags, boolean processImmediately) { 4421 QueuedInputEvent q = obtainQueuedInputEvent(event, receiver, flags); 4422 4423 // Always enqueue the input event in order, regardless of its time stamp. 4424 // We do this because the application or the IME may inject key events 4425 // in response to touch events and we want to ensure that the injected keys 4426 // are processed in the order they were received and we cannot trust that 4427 // the time stamp of injected events are monotonic. 4428 QueuedInputEvent last = mFirstPendingInputEvent; 4429 if (last == null) { 4430 mFirstPendingInputEvent = q; 4431 } else { 4432 while (last.mNext != null) { 4433 last = last.mNext; 4434 } 4435 last.mNext = q; 4436 } 4437 mPendingInputEventCount += 1; 4438 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4439 mPendingInputEventCount); 4440 4441 if (processImmediately) { 4442 doProcessInputEvents(); 4443 } else { 4444 scheduleProcessInputEvents(); 4445 } 4446 } 4447 4448 private void scheduleProcessInputEvents() { 4449 if (!mProcessInputEventsScheduled) { 4450 mProcessInputEventsScheduled = true; 4451 Message msg = mHandler.obtainMessage(MSG_PROCESS_INPUT_EVENTS); 4452 msg.setAsynchronous(true); 4453 mHandler.sendMessage(msg); 4454 } 4455 } 4456 4457 void doProcessInputEvents() { 4458 while (mCurrentInputEvent == null && mFirstPendingInputEvent != null) { 4459 QueuedInputEvent q = mFirstPendingInputEvent; 4460 mFirstPendingInputEvent = q.mNext; 4461 q.mNext = null; 4462 mCurrentInputEvent = q; 4463 4464 mPendingInputEventCount -= 1; 4465 Trace.traceCounter(Trace.TRACE_TAG_INPUT, mPendingInputEventQueueLengthCounterName, 4466 mPendingInputEventCount); 4467 4468 final int result = deliverInputEvent(q); 4469 if (result != EVENT_IN_PROGRESS) { 4470 finishCurrentInputEvent(result == EVENT_HANDLED); 4471 } 4472 } 4473 4474 // We are done processing all input events that we can process right now 4475 // so we can clear the pending flag immediately. 4476 if (mProcessInputEventsScheduled) { 4477 mProcessInputEventsScheduled = false; 4478 mHandler.removeMessages(MSG_PROCESS_INPUT_EVENTS); 4479 } 4480 } 4481 4482 void handleImeFinishedEvent(int seq, boolean handled) { 4483 final QueuedInputEvent q = mCurrentInputEvent; 4484 if (q != null && q.mEvent.getSequenceNumber() == seq) { 4485 if (DEBUG_IMF) { 4486 Log.v(TAG, "IME finished event: seq=" + seq 4487 + " handled=" + handled + " event=" + q); 4488 } 4489 4490 if (!handled) { 4491 // If the window doesn't currently have input focus, then drop 4492 // this event. This could be an event that came back from the 4493 // IME dispatch but the window has lost focus in the meantime. 4494 if (!mAttachInfo.mHasWindowFocus && !isTerminalInputEvent(q.mEvent)) { 4495 Slog.w(TAG, "Dropping event due to no window focus: " + q.mEvent); 4496 } else { 4497 final int result = deliverInputEventPostIme(q); 4498 if (result == EVENT_HANDLED) { 4499 handled = true; 4500 } 4501 } 4502 } 4503 finishCurrentInputEvent(handled); 4504 4505 // Immediately start processing the next input event. 4506 doProcessInputEvents(); 4507 } else { 4508 if (DEBUG_IMF) { 4509 Log.v(TAG, "IME finished event: seq=" + seq 4510 + " handled=" + handled + ", event not found!"); 4511 } 4512 } 4513 } 4514 4515 private void finishCurrentInputEvent(boolean handled) { 4516 final QueuedInputEvent q = mCurrentInputEvent; 4517 mCurrentInputEvent = null; 4518 4519 if (q.mReceiver != null) { 4520 q.mReceiver.finishInputEvent(q.mEvent, handled); 4521 } else { 4522 q.mEvent.recycleIfNeededAfterDispatch(); 4523 } 4524 4525 recycleQueuedInputEvent(q); 4526 } 4527 4528 private static boolean isTerminalInputEvent(InputEvent event) { 4529 if (event instanceof KeyEvent) { 4530 final KeyEvent keyEvent = (KeyEvent)event; 4531 return keyEvent.getAction() == KeyEvent.ACTION_UP; 4532 } else { 4533 final MotionEvent motionEvent = (MotionEvent)event; 4534 final int action = motionEvent.getAction(); 4535 return action == MotionEvent.ACTION_UP 4536 || action == MotionEvent.ACTION_CANCEL 4537 || action == MotionEvent.ACTION_HOVER_EXIT; 4538 } 4539 } 4540 4541 void scheduleConsumeBatchedInput() { 4542 if (!mConsumeBatchedInputScheduled) { 4543 mConsumeBatchedInputScheduled = true; 4544 mChoreographer.postCallback(Choreographer.CALLBACK_INPUT, 4545 mConsumedBatchedInputRunnable, null); 4546 } 4547 } 4548 4549 void unscheduleConsumeBatchedInput() { 4550 if (mConsumeBatchedInputScheduled) { 4551 mConsumeBatchedInputScheduled = false; 4552 mChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, 4553 mConsumedBatchedInputRunnable, null); 4554 } 4555 } 4556 4557 void doConsumeBatchedInput(long frameTimeNanos) { 4558 if (mConsumeBatchedInputScheduled) { 4559 mConsumeBatchedInputScheduled = false; 4560 if (mInputEventReceiver != null) { 4561 mInputEventReceiver.consumeBatchedInputEvents(frameTimeNanos); 4562 } 4563 doProcessInputEvents(); 4564 } 4565 } 4566 4567 final class TraversalRunnable implements Runnable { 4568 @Override 4569 public void run() { 4570 doTraversal(); 4571 } 4572 } 4573 final TraversalRunnable mTraversalRunnable = new TraversalRunnable(); 4574 4575 final class WindowInputEventReceiver extends InputEventReceiver { 4576 public WindowInputEventReceiver(InputChannel inputChannel, Looper looper) { 4577 super(inputChannel, looper); 4578 } 4579 4580 @Override 4581 public void onInputEvent(InputEvent event) { 4582 enqueueInputEvent(event, this, 0, true); 4583 } 4584 4585 @Override 4586 public void onBatchedInputEventPending() { 4587 scheduleConsumeBatchedInput(); 4588 } 4589 4590 @Override 4591 public void dispose() { 4592 unscheduleConsumeBatchedInput(); 4593 super.dispose(); 4594 } 4595 } 4596 WindowInputEventReceiver mInputEventReceiver; 4597 4598 final class ConsumeBatchedInputRunnable implements Runnable { 4599 @Override 4600 public void run() { 4601 doConsumeBatchedInput(mChoreographer.getFrameTimeNanos()); 4602 } 4603 } 4604 final ConsumeBatchedInputRunnable mConsumedBatchedInputRunnable = 4605 new ConsumeBatchedInputRunnable(); 4606 boolean mConsumeBatchedInputScheduled; 4607 4608 final class InvalidateOnAnimationRunnable implements Runnable { 4609 private boolean mPosted; 4610 private ArrayList<View> mViews = new ArrayList<View>(); 4611 private ArrayList<AttachInfo.InvalidateInfo> mViewRects = 4612 new ArrayList<AttachInfo.InvalidateInfo>(); 4613 private View[] mTempViews; 4614 private AttachInfo.InvalidateInfo[] mTempViewRects; 4615 4616 public void addView(View view) { 4617 synchronized (this) { 4618 mViews.add(view); 4619 postIfNeededLocked(); 4620 } 4621 } 4622 4623 public void addViewRect(AttachInfo.InvalidateInfo info) { 4624 synchronized (this) { 4625 mViewRects.add(info); 4626 postIfNeededLocked(); 4627 } 4628 } 4629 4630 public void removeView(View view) { 4631 synchronized (this) { 4632 mViews.remove(view); 4633 4634 for (int i = mViewRects.size(); i-- > 0; ) { 4635 AttachInfo.InvalidateInfo info = mViewRects.get(i); 4636 if (info.target == view) { 4637 mViewRects.remove(i); 4638 info.recycle(); 4639 } 4640 } 4641 4642 if (mPosted && mViews.isEmpty() && mViewRects.isEmpty()) { 4643 mChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, this, null); 4644 mPosted = false; 4645 } 4646 } 4647 } 4648 4649 @Override 4650 public void run() { 4651 final int viewCount; 4652 final int viewRectCount; 4653 synchronized (this) { 4654 mPosted = false; 4655 4656 viewCount = mViews.size(); 4657 if (viewCount != 0) { 4658 mTempViews = mViews.toArray(mTempViews != null 4659 ? mTempViews : new View[viewCount]); 4660 mViews.clear(); 4661 } 4662 4663 viewRectCount = mViewRects.size(); 4664 if (viewRectCount != 0) { 4665 mTempViewRects = mViewRects.toArray(mTempViewRects != null 4666 ? mTempViewRects : new AttachInfo.InvalidateInfo[viewRectCount]); 4667 mViewRects.clear(); 4668 } 4669 } 4670 4671 for (int i = 0; i < viewCount; i++) { 4672 mTempViews[i].invalidate(); 4673 mTempViews[i] = null; 4674 } 4675 4676 for (int i = 0; i < viewRectCount; i++) { 4677 final View.AttachInfo.InvalidateInfo info = mTempViewRects[i]; 4678 info.target.invalidate(info.left, info.top, info.right, info.bottom); 4679 info.recycle(); 4680 } 4681 } 4682 4683 private void postIfNeededLocked() { 4684 if (!mPosted) { 4685 mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 4686 mPosted = true; 4687 } 4688 } 4689 } 4690 final InvalidateOnAnimationRunnable mInvalidateOnAnimationRunnable = 4691 new InvalidateOnAnimationRunnable(); 4692 4693 public void dispatchInvalidateDelayed(View view, long delayMilliseconds) { 4694 Message msg = mHandler.obtainMessage(MSG_INVALIDATE, view); 4695 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4696 } 4697 4698 public void dispatchInvalidateRectDelayed(AttachInfo.InvalidateInfo info, 4699 long delayMilliseconds) { 4700 final Message msg = mHandler.obtainMessage(MSG_INVALIDATE_RECT, info); 4701 mHandler.sendMessageDelayed(msg, delayMilliseconds); 4702 } 4703 4704 public void dispatchInvalidateOnAnimation(View view) { 4705 mInvalidateOnAnimationRunnable.addView(view); 4706 } 4707 4708 public void dispatchInvalidateRectOnAnimation(AttachInfo.InvalidateInfo info) { 4709 mInvalidateOnAnimationRunnable.addViewRect(info); 4710 } 4711 4712 public void enqueueDisplayList(DisplayList displayList) { 4713 mDisplayLists.add(displayList); 4714 } 4715 4716 public void cancelInvalidate(View view) { 4717 mHandler.removeMessages(MSG_INVALIDATE, view); 4718 // fixme: might leak the AttachInfo.InvalidateInfo objects instead of returning 4719 // them to the pool 4720 mHandler.removeMessages(MSG_INVALIDATE_RECT, view); 4721 mInvalidateOnAnimationRunnable.removeView(view); 4722 } 4723 4724 public void dispatchKey(KeyEvent event) { 4725 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY, event); 4726 msg.setAsynchronous(true); 4727 mHandler.sendMessage(msg); 4728 } 4729 4730 public void dispatchKeyFromIme(KeyEvent event) { 4731 Message msg = mHandler.obtainMessage(MSG_DISPATCH_KEY_FROM_IME, event); 4732 msg.setAsynchronous(true); 4733 mHandler.sendMessage(msg); 4734 } 4735 4736 public void dispatchUnhandledKey(KeyEvent event) { 4737 if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) { 4738 final KeyCharacterMap kcm = event.getKeyCharacterMap(); 4739 final int keyCode = event.getKeyCode(); 4740 final int metaState = event.getMetaState(); 4741 4742 // Check for fallback actions specified by the key character map. 4743 KeyCharacterMap.FallbackAction fallbackAction = 4744 kcm.getFallbackAction(keyCode, metaState); 4745 if (fallbackAction != null) { 4746 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK; 4747 KeyEvent fallbackEvent = KeyEvent.obtain( 4748 event.getDownTime(), event.getEventTime(), 4749 event.getAction(), fallbackAction.keyCode, 4750 event.getRepeatCount(), fallbackAction.metaState, 4751 event.getDeviceId(), event.getScanCode(), 4752 flags, event.getSource(), null); 4753 fallbackAction.recycle(); 4754 4755 dispatchKey(fallbackEvent); 4756 } 4757 } 4758 } 4759 4760 public void dispatchAppVisibility(boolean visible) { 4761 Message msg = mHandler.obtainMessage(MSG_DISPATCH_APP_VISIBILITY); 4762 msg.arg1 = visible ? 1 : 0; 4763 mHandler.sendMessage(msg); 4764 } 4765 4766 public void dispatchScreenStateChange(boolean on) { 4767 Message msg = mHandler.obtainMessage(MSG_DISPATCH_SCREEN_STATE); 4768 msg.arg1 = on ? 1 : 0; 4769 mHandler.sendMessage(msg); 4770 } 4771 4772 public void dispatchGetNewSurface() { 4773 Message msg = mHandler.obtainMessage(MSG_DISPATCH_GET_NEW_SURFACE); 4774 mHandler.sendMessage(msg); 4775 } 4776 4777 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 4778 Message msg = Message.obtain(); 4779 msg.what = MSG_WINDOW_FOCUS_CHANGED; 4780 msg.arg1 = hasFocus ? 1 : 0; 4781 msg.arg2 = inTouchMode ? 1 : 0; 4782 mHandler.sendMessage(msg); 4783 } 4784 4785 public void dispatchCloseSystemDialogs(String reason) { 4786 Message msg = Message.obtain(); 4787 msg.what = MSG_CLOSE_SYSTEM_DIALOGS; 4788 msg.obj = reason; 4789 mHandler.sendMessage(msg); 4790 } 4791 4792 public void dispatchDragEvent(DragEvent event) { 4793 final int what; 4794 if (event.getAction() == DragEvent.ACTION_DRAG_LOCATION) { 4795 what = MSG_DISPATCH_DRAG_LOCATION_EVENT; 4796 mHandler.removeMessages(what); 4797 } else { 4798 what = MSG_DISPATCH_DRAG_EVENT; 4799 } 4800 Message msg = mHandler.obtainMessage(what, event); 4801 mHandler.sendMessage(msg); 4802 } 4803 4804 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 4805 int localValue, int localChanges) { 4806 SystemUiVisibilityInfo args = new SystemUiVisibilityInfo(); 4807 args.seq = seq; 4808 args.globalVisibility = globalVisibility; 4809 args.localValue = localValue; 4810 args.localChanges = localChanges; 4811 mHandler.sendMessage(mHandler.obtainMessage(MSG_DISPATCH_SYSTEM_UI_VISIBILITY, args)); 4812 } 4813 4814 public void dispatchDoneAnimating() { 4815 mHandler.sendEmptyMessage(MSG_DISPATCH_DONE_ANIMATING); 4816 } 4817 4818 public void dispatchCheckFocus() { 4819 if (!mHandler.hasMessages(MSG_CHECK_FOCUS)) { 4820 // This will result in a call to checkFocus() below. 4821 mHandler.sendEmptyMessage(MSG_CHECK_FOCUS); 4822 } 4823 } 4824 4825 /** 4826 * Post a callback to send a 4827 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4828 * This event is send at most once every 4829 * {@link ViewConfiguration#getSendRecurringAccessibilityEventsInterval()}. 4830 */ 4831 private void postSendWindowContentChangedCallback(View source) { 4832 if (mSendWindowContentChangedAccessibilityEvent == null) { 4833 mSendWindowContentChangedAccessibilityEvent = 4834 new SendWindowContentChangedAccessibilityEvent(); 4835 } 4836 View oldSource = mSendWindowContentChangedAccessibilityEvent.mSource; 4837 if (oldSource == null) { 4838 mSendWindowContentChangedAccessibilityEvent.mSource = source; 4839 mHandler.postDelayed(mSendWindowContentChangedAccessibilityEvent, 4840 ViewConfiguration.getSendRecurringAccessibilityEventsInterval()); 4841 } else { 4842 mSendWindowContentChangedAccessibilityEvent.mSource = 4843 getCommonPredecessor(oldSource, source); 4844 } 4845 } 4846 4847 /** 4848 * Remove a posted callback to send a 4849 * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event. 4850 */ 4851 private void removeSendWindowContentChangedCallback() { 4852 if (mSendWindowContentChangedAccessibilityEvent != null) { 4853 mHandler.removeCallbacks(mSendWindowContentChangedAccessibilityEvent); 4854 } 4855 } 4856 4857 public boolean showContextMenuForChild(View originalView) { 4858 return false; 4859 } 4860 4861 public ActionMode startActionModeForChild(View originalView, ActionMode.Callback callback) { 4862 return null; 4863 } 4864 4865 public void createContextMenu(ContextMenu menu) { 4866 } 4867 4868 public void childDrawableStateChanged(View child) { 4869 } 4870 4871 public boolean requestSendAccessibilityEvent(View child, AccessibilityEvent event) { 4872 if (mView == null) { 4873 return false; 4874 } 4875 // Intercept accessibility focus events fired by virtual nodes to keep 4876 // track of accessibility focus position in such nodes. 4877 final int eventType = event.getEventType(); 4878 switch (eventType) { 4879 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED: { 4880 final long sourceNodeId = event.getSourceNodeId(); 4881 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4882 sourceNodeId); 4883 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4884 if (source != null) { 4885 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4886 if (provider != null) { 4887 AccessibilityNodeInfo node = provider.createAccessibilityNodeInfo( 4888 AccessibilityNodeInfo.getVirtualDescendantId(sourceNodeId)); 4889 setAccessibilityFocus(source, node); 4890 } 4891 } 4892 } break; 4893 case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED: { 4894 final long sourceNodeId = event.getSourceNodeId(); 4895 final int accessibilityViewId = AccessibilityNodeInfo.getAccessibilityViewId( 4896 sourceNodeId); 4897 View source = mView.findViewByAccessibilityId(accessibilityViewId); 4898 if (source != null) { 4899 AccessibilityNodeProvider provider = source.getAccessibilityNodeProvider(); 4900 if (provider != null) { 4901 setAccessibilityFocus(null, null); 4902 } 4903 } 4904 } break; 4905 } 4906 mAccessibilityManager.sendAccessibilityEvent(event); 4907 return true; 4908 } 4909 4910 @Override 4911 public void childAccessibilityStateChanged(View child) { 4912 postSendWindowContentChangedCallback(child); 4913 } 4914 4915 @Override 4916 public boolean canResolveLayoutDirection() { 4917 return true; 4918 } 4919 4920 @Override 4921 public boolean isLayoutDirectionResolved() { 4922 return true; 4923 } 4924 4925 @Override 4926 public int getLayoutDirection() { 4927 return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT; 4928 } 4929 4930 @Override 4931 public boolean canResolveTextDirection() { 4932 return true; 4933 } 4934 4935 @Override 4936 public boolean isTextDirectionResolved() { 4937 return true; 4938 } 4939 4940 @Override 4941 public int getTextDirection() { 4942 return View.TEXT_DIRECTION_RESOLVED_DEFAULT; 4943 } 4944 4945 @Override 4946 public boolean canResolveTextAlignment() { 4947 return true; 4948 } 4949 4950 @Override 4951 public boolean isTextAlignmentResolved() { 4952 return true; 4953 } 4954 4955 @Override 4956 public int getTextAlignment() { 4957 return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT; 4958 } 4959 4960 private View getCommonPredecessor(View first, View second) { 4961 if (mAttachInfo != null) { 4962 if (mTempHashSet == null) { 4963 mTempHashSet = new HashSet<View>(); 4964 } 4965 HashSet<View> seen = mTempHashSet; 4966 seen.clear(); 4967 View firstCurrent = first; 4968 while (firstCurrent != null) { 4969 seen.add(firstCurrent); 4970 ViewParent firstCurrentParent = firstCurrent.mParent; 4971 if (firstCurrentParent instanceof View) { 4972 firstCurrent = (View) firstCurrentParent; 4973 } else { 4974 firstCurrent = null; 4975 } 4976 } 4977 View secondCurrent = second; 4978 while (secondCurrent != null) { 4979 if (seen.contains(secondCurrent)) { 4980 seen.clear(); 4981 return secondCurrent; 4982 } 4983 ViewParent secondCurrentParent = secondCurrent.mParent; 4984 if (secondCurrentParent instanceof View) { 4985 secondCurrent = (View) secondCurrentParent; 4986 } else { 4987 secondCurrent = null; 4988 } 4989 } 4990 seen.clear(); 4991 } 4992 return null; 4993 } 4994 4995 void checkThread() { 4996 if (mThread != Thread.currentThread()) { 4997 throw new CalledFromWrongThreadException( 4998 "Only the original thread that created a view hierarchy can touch its views."); 4999 } 5000 } 5001 5002 public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 5003 // ViewAncestor never intercepts touch event, so this can be a no-op 5004 } 5005 5006 public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) { 5007 final boolean scrolled = scrollToRectOrFocus(rectangle, immediate); 5008 if (rectangle != null) { 5009 mTempRect.set(rectangle); 5010 mTempRect.offset(0, -mCurScrollY); 5011 mTempRect.offset(mAttachInfo.mWindowLeft, mAttachInfo.mWindowTop); 5012 try { 5013 mWindowSession.onRectangleOnScreenRequested(mWindow, mTempRect, immediate); 5014 } catch (RemoteException re) { 5015 /* ignore */ 5016 } 5017 } 5018 return scrolled; 5019 } 5020 5021 public void childHasTransientStateChanged(View child, boolean hasTransientState) { 5022 // Do nothing. 5023 } 5024 5025 class TakenSurfaceHolder extends BaseSurfaceHolder { 5026 @Override 5027 public boolean onAllowLockCanvas() { 5028 return mDrawingAllowed; 5029 } 5030 5031 @Override 5032 public void onRelayoutContainer() { 5033 // Not currently interesting -- from changing between fixed and layout size. 5034 } 5035 5036 public void setFormat(int format) { 5037 ((RootViewSurfaceTaker)mView).setSurfaceFormat(format); 5038 } 5039 5040 public void setType(int type) { 5041 ((RootViewSurfaceTaker)mView).setSurfaceType(type); 5042 } 5043 5044 @Override 5045 public void onUpdateSurface() { 5046 // We take care of format and type changes on our own. 5047 throw new IllegalStateException("Shouldn't be here"); 5048 } 5049 5050 public boolean isCreating() { 5051 return mIsCreating; 5052 } 5053 5054 @Override 5055 public void setFixedSize(int width, int height) { 5056 throw new UnsupportedOperationException( 5057 "Currently only support sizing from layout"); 5058 } 5059 5060 public void setKeepScreenOn(boolean screenOn) { 5061 ((RootViewSurfaceTaker)mView).setSurfaceKeepScreenOn(screenOn); 5062 } 5063 } 5064 5065 static final class InputMethodCallback implements InputMethodManager.FinishedEventCallback { 5066 private WeakReference<ViewRootImpl> mViewAncestor; 5067 5068 public InputMethodCallback(ViewRootImpl viewAncestor) { 5069 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5070 } 5071 5072 @Override 5073 public void finishedEvent(int seq, boolean handled) { 5074 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5075 if (viewAncestor != null) { 5076 viewAncestor.dispatchImeFinishedEvent(seq, handled); 5077 } 5078 } 5079 } 5080 5081 static class W extends IWindow.Stub { 5082 private final WeakReference<ViewRootImpl> mViewAncestor; 5083 private final IWindowSession mWindowSession; 5084 5085 W(ViewRootImpl viewAncestor) { 5086 mViewAncestor = new WeakReference<ViewRootImpl>(viewAncestor); 5087 mWindowSession = viewAncestor.mWindowSession; 5088 } 5089 5090 public void resized(Rect frame, Rect overscanInsets, Rect contentInsets, 5091 Rect visibleInsets, boolean reportDraw, Configuration newConfig) { 5092 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5093 if (viewAncestor != null) { 5094 viewAncestor.dispatchResized(frame, overscanInsets, contentInsets, 5095 visibleInsets, reportDraw, newConfig); 5096 } 5097 } 5098 5099 @Override 5100 public void moved(int newX, int newY) { 5101 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5102 if (viewAncestor != null) { 5103 viewAncestor.dispatchMoved(newX, newY); 5104 } 5105 } 5106 5107 public void dispatchAppVisibility(boolean visible) { 5108 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5109 if (viewAncestor != null) { 5110 viewAncestor.dispatchAppVisibility(visible); 5111 } 5112 } 5113 5114 public void dispatchScreenState(boolean on) { 5115 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5116 if (viewAncestor != null) { 5117 viewAncestor.dispatchScreenStateChange(on); 5118 } 5119 } 5120 5121 public void dispatchGetNewSurface() { 5122 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5123 if (viewAncestor != null) { 5124 viewAncestor.dispatchGetNewSurface(); 5125 } 5126 } 5127 5128 public void windowFocusChanged(boolean hasFocus, boolean inTouchMode) { 5129 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5130 if (viewAncestor != null) { 5131 viewAncestor.windowFocusChanged(hasFocus, inTouchMode); 5132 } 5133 } 5134 5135 private static int checkCallingPermission(String permission) { 5136 try { 5137 return ActivityManagerNative.getDefault().checkPermission( 5138 permission, Binder.getCallingPid(), Binder.getCallingUid()); 5139 } catch (RemoteException e) { 5140 return PackageManager.PERMISSION_DENIED; 5141 } 5142 } 5143 5144 public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { 5145 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5146 if (viewAncestor != null) { 5147 final View view = viewAncestor.mView; 5148 if (view != null) { 5149 if (checkCallingPermission(Manifest.permission.DUMP) != 5150 PackageManager.PERMISSION_GRANTED) { 5151 throw new SecurityException("Insufficient permissions to invoke" 5152 + " executeCommand() from pid=" + Binder.getCallingPid() 5153 + ", uid=" + Binder.getCallingUid()); 5154 } 5155 5156 OutputStream clientStream = null; 5157 try { 5158 clientStream = new ParcelFileDescriptor.AutoCloseOutputStream(out); 5159 ViewDebug.dispatchCommand(view, command, parameters, clientStream); 5160 } catch (IOException e) { 5161 e.printStackTrace(); 5162 } finally { 5163 if (clientStream != null) { 5164 try { 5165 clientStream.close(); 5166 } catch (IOException e) { 5167 e.printStackTrace(); 5168 } 5169 } 5170 } 5171 } 5172 } 5173 } 5174 5175 public void closeSystemDialogs(String reason) { 5176 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5177 if (viewAncestor != null) { 5178 viewAncestor.dispatchCloseSystemDialogs(reason); 5179 } 5180 } 5181 5182 public void dispatchWallpaperOffsets(float x, float y, float xStep, float yStep, 5183 boolean sync) { 5184 if (sync) { 5185 try { 5186 mWindowSession.wallpaperOffsetsComplete(asBinder()); 5187 } catch (RemoteException e) { 5188 } 5189 } 5190 } 5191 5192 public void dispatchWallpaperCommand(String action, int x, int y, 5193 int z, Bundle extras, boolean sync) { 5194 if (sync) { 5195 try { 5196 mWindowSession.wallpaperCommandComplete(asBinder(), null); 5197 } catch (RemoteException e) { 5198 } 5199 } 5200 } 5201 5202 /* Drag/drop */ 5203 public void dispatchDragEvent(DragEvent event) { 5204 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5205 if (viewAncestor != null) { 5206 viewAncestor.dispatchDragEvent(event); 5207 } 5208 } 5209 5210 public void dispatchSystemUiVisibilityChanged(int seq, int globalVisibility, 5211 int localValue, int localChanges) { 5212 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5213 if (viewAncestor != null) { 5214 viewAncestor.dispatchSystemUiVisibilityChanged(seq, globalVisibility, 5215 localValue, localChanges); 5216 } 5217 } 5218 5219 public void doneAnimating() { 5220 final ViewRootImpl viewAncestor = mViewAncestor.get(); 5221 if (viewAncestor != null) { 5222 viewAncestor.dispatchDoneAnimating(); 5223 } 5224 } 5225 } 5226 5227 /** 5228 * Maintains state information for a single trackball axis, generating 5229 * discrete (DPAD) movements based on raw trackball motion. 5230 */ 5231 static final class TrackballAxis { 5232 /** 5233 * The maximum amount of acceleration we will apply. 5234 */ 5235 static final float MAX_ACCELERATION = 20; 5236 5237 /** 5238 * The maximum amount of time (in milliseconds) between events in order 5239 * for us to consider the user to be doing fast trackball movements, 5240 * and thus apply an acceleration. 5241 */ 5242 static final long FAST_MOVE_TIME = 150; 5243 5244 /** 5245 * Scaling factor to the time (in milliseconds) between events to how 5246 * much to multiple/divide the current acceleration. When movement 5247 * is < FAST_MOVE_TIME this multiplies the acceleration; when > 5248 * FAST_MOVE_TIME it divides it. 5249 */ 5250 static final float ACCEL_MOVE_SCALING_FACTOR = (1.0f/40); 5251 5252 float position; 5253 float absPosition; 5254 float acceleration = 1; 5255 long lastMoveTime = 0; 5256 int step; 5257 int dir; 5258 int nonAccelMovement; 5259 5260 void reset(int _step) { 5261 position = 0; 5262 acceleration = 1; 5263 lastMoveTime = 0; 5264 step = _step; 5265 dir = 0; 5266 } 5267 5268 /** 5269 * Add trackball movement into the state. If the direction of movement 5270 * has been reversed, the state is reset before adding the 5271 * movement (so that you don't have to compensate for any previously 5272 * collected movement before see the result of the movement in the 5273 * new direction). 5274 * 5275 * @return Returns the absolute value of the amount of movement 5276 * collected so far. 5277 */ 5278 float collect(float off, long time, String axis) { 5279 long normTime; 5280 if (off > 0) { 5281 normTime = (long)(off * FAST_MOVE_TIME); 5282 if (dir < 0) { 5283 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to positive!"); 5284 position = 0; 5285 step = 0; 5286 acceleration = 1; 5287 lastMoveTime = 0; 5288 } 5289 dir = 1; 5290 } else if (off < 0) { 5291 normTime = (long)((-off) * FAST_MOVE_TIME); 5292 if (dir > 0) { 5293 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " reversed to negative!"); 5294 position = 0; 5295 step = 0; 5296 acceleration = 1; 5297 lastMoveTime = 0; 5298 } 5299 dir = -1; 5300 } else { 5301 normTime = 0; 5302 } 5303 5304 // The number of milliseconds between each movement that is 5305 // considered "normal" and will not result in any acceleration 5306 // or deceleration, scaled by the offset we have here. 5307 if (normTime > 0) { 5308 long delta = time - lastMoveTime; 5309 lastMoveTime = time; 5310 float acc = acceleration; 5311 if (delta < normTime) { 5312 // The user is scrolling rapidly, so increase acceleration. 5313 float scale = (normTime-delta) * ACCEL_MOVE_SCALING_FACTOR; 5314 if (scale > 1) acc *= scale; 5315 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " accelerate: off=" 5316 + off + " normTime=" + normTime + " delta=" + delta 5317 + " scale=" + scale + " acc=" + acc); 5318 acceleration = acc < MAX_ACCELERATION ? acc : MAX_ACCELERATION; 5319 } else { 5320 // The user is scrolling slowly, so decrease acceleration. 5321 float scale = (delta-normTime) * ACCEL_MOVE_SCALING_FACTOR; 5322 if (scale > 1) acc /= scale; 5323 if (DEBUG_TRACKBALL) Log.v(TAG, axis + " deccelerate: off=" 5324 + off + " normTime=" + normTime + " delta=" + delta 5325 + " scale=" + scale + " acc=" + acc); 5326 acceleration = acc > 1 ? acc : 1; 5327 } 5328 } 5329 position += off; 5330 return (absPosition = Math.abs(position)); 5331 } 5332 5333 /** 5334 * Generate the number of discrete movement events appropriate for 5335 * the currently collected trackball movement. 5336 * 5337 * @param precision The minimum movement required to generate the 5338 * first discrete movement. 5339 * 5340 * @return Returns the number of discrete movements, either positive 5341 * or negative, or 0 if there is not enough trackball movement yet 5342 * for a discrete movement. 5343 */ 5344 int generate(float precision) { 5345 int movement = 0; 5346 nonAccelMovement = 0; 5347 do { 5348 final int dir = position >= 0 ? 1 : -1; 5349 switch (step) { 5350 // If we are going to execute the first step, then we want 5351 // to do this as soon as possible instead of waiting for 5352 // a full movement, in order to make things look responsive. 5353 case 0: 5354 if (absPosition < precision) { 5355 return movement; 5356 } 5357 movement += dir; 5358 nonAccelMovement += dir; 5359 step = 1; 5360 break; 5361 // If we have generated the first movement, then we need 5362 // to wait for the second complete trackball motion before 5363 // generating the second discrete movement. 5364 case 1: 5365 if (absPosition < 2) { 5366 return movement; 5367 } 5368 movement += dir; 5369 nonAccelMovement += dir; 5370 position += dir > 0 ? -2 : 2; 5371 absPosition = Math.abs(position); 5372 step = 2; 5373 break; 5374 // After the first two, we generate discrete movements 5375 // consistently with the trackball, applying an acceleration 5376 // if the trackball is moving quickly. This is a simple 5377 // acceleration on top of what we already compute based 5378 // on how quickly the wheel is being turned, to apply 5379 // a longer increasing acceleration to continuous movement 5380 // in one direction. 5381 default: 5382 if (absPosition < 1) { 5383 return movement; 5384 } 5385 movement += dir; 5386 position += dir >= 0 ? -1 : 1; 5387 absPosition = Math.abs(position); 5388 float acc = acceleration; 5389 acc *= 1.1f; 5390 acceleration = acc < MAX_ACCELERATION ? acc : acceleration; 5391 break; 5392 } 5393 } while (true); 5394 } 5395 } 5396 5397 public static final class CalledFromWrongThreadException extends AndroidRuntimeException { 5398 public CalledFromWrongThreadException(String msg) { 5399 super(msg); 5400 } 5401 } 5402 5403 private SurfaceHolder mHolder = new SurfaceHolder() { 5404 // we only need a SurfaceHolder for opengl. it would be nice 5405 // to implement everything else though, especially the callback 5406 // support (opengl doesn't make use of it right now, but eventually 5407 // will). 5408 public Surface getSurface() { 5409 return mSurface; 5410 } 5411 5412 public boolean isCreating() { 5413 return false; 5414 } 5415 5416 public void addCallback(Callback callback) { 5417 } 5418 5419 public void removeCallback(Callback callback) { 5420 } 5421 5422 public void setFixedSize(int width, int height) { 5423 } 5424 5425 public void setSizeFromLayout() { 5426 } 5427 5428 public void setFormat(int format) { 5429 } 5430 5431 public void setType(int type) { 5432 } 5433 5434 public void setKeepScreenOn(boolean screenOn) { 5435 } 5436 5437 public Canvas lockCanvas() { 5438 return null; 5439 } 5440 5441 public Canvas lockCanvas(Rect dirty) { 5442 return null; 5443 } 5444 5445 public void unlockCanvasAndPost(Canvas canvas) { 5446 } 5447 public Rect getSurfaceFrame() { 5448 return null; 5449 } 5450 }; 5451 5452 static RunQueue getRunQueue() { 5453 RunQueue rq = sRunQueues.get(); 5454 if (rq != null) { 5455 return rq; 5456 } 5457 rq = new RunQueue(); 5458 sRunQueues.set(rq); 5459 return rq; 5460 } 5461 5462 /** 5463 * The run queue is used to enqueue pending work from Views when no Handler is 5464 * attached. The work is executed during the next call to performTraversals on 5465 * the thread. 5466 * @hide 5467 */ 5468 static final class RunQueue { 5469 private final ArrayList<HandlerAction> mActions = new ArrayList<HandlerAction>(); 5470 5471 void post(Runnable action) { 5472 postDelayed(action, 0); 5473 } 5474 5475 void postDelayed(Runnable action, long delayMillis) { 5476 HandlerAction handlerAction = new HandlerAction(); 5477 handlerAction.action = action; 5478 handlerAction.delay = delayMillis; 5479 5480 synchronized (mActions) { 5481 mActions.add(handlerAction); 5482 } 5483 } 5484 5485 void removeCallbacks(Runnable action) { 5486 final HandlerAction handlerAction = new HandlerAction(); 5487 handlerAction.action = action; 5488 5489 synchronized (mActions) { 5490 final ArrayList<HandlerAction> actions = mActions; 5491 5492 while (actions.remove(handlerAction)) { 5493 // Keep going 5494 } 5495 } 5496 } 5497 5498 void executeActions(Handler handler) { 5499 synchronized (mActions) { 5500 final ArrayList<HandlerAction> actions = mActions; 5501 final int count = actions.size(); 5502 5503 for (int i = 0; i < count; i++) { 5504 final HandlerAction handlerAction = actions.get(i); 5505 handler.postDelayed(handlerAction.action, handlerAction.delay); 5506 } 5507 5508 actions.clear(); 5509 } 5510 } 5511 5512 private static class HandlerAction { 5513 Runnable action; 5514 long delay; 5515 5516 @Override 5517 public boolean equals(Object o) { 5518 if (this == o) return true; 5519 if (o == null || getClass() != o.getClass()) return false; 5520 5521 HandlerAction that = (HandlerAction) o; 5522 return !(action != null ? !action.equals(that.action) : that.action != null); 5523 5524 } 5525 5526 @Override 5527 public int hashCode() { 5528 int result = action != null ? action.hashCode() : 0; 5529 result = 31 * result + (int) (delay ^ (delay >>> 32)); 5530 return result; 5531 } 5532 } 5533 } 5534 5535 /** 5536 * Class for managing the accessibility interaction connection 5537 * based on the global accessibility state. 5538 */ 5539 final class AccessibilityInteractionConnectionManager 5540 implements AccessibilityStateChangeListener { 5541 public void onAccessibilityStateChanged(boolean enabled) { 5542 if (enabled) { 5543 ensureConnection(); 5544 if (mAttachInfo != null && mAttachInfo.mHasWindowFocus) { 5545 mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED); 5546 View focusedView = mView.findFocus(); 5547 if (focusedView != null && focusedView != mView) { 5548 focusedView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); 5549 } 5550 } 5551 } else { 5552 ensureNoConnection(); 5553 mHandler.obtainMessage(MSG_CLEAR_ACCESSIBILITY_FOCUS_HOST).sendToTarget(); 5554 } 5555 } 5556 5557 public void ensureConnection() { 5558 if (mAttachInfo != null) { 5559 final boolean registered = 5560 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5561 if (!registered) { 5562 mAttachInfo.mAccessibilityWindowId = 5563 mAccessibilityManager.addAccessibilityInteractionConnection(mWindow, 5564 new AccessibilityInteractionConnection(ViewRootImpl.this)); 5565 } 5566 } 5567 } 5568 5569 public void ensureNoConnection() { 5570 final boolean registered = 5571 mAttachInfo.mAccessibilityWindowId != AccessibilityNodeInfo.UNDEFINED; 5572 if (registered) { 5573 mAttachInfo.mAccessibilityWindowId = AccessibilityNodeInfo.UNDEFINED; 5574 mAccessibilityManager.removeAccessibilityInteractionConnection(mWindow); 5575 } 5576 } 5577 } 5578 5579 /** 5580 * This class is an interface this ViewAncestor provides to the 5581 * AccessibilityManagerService to the latter can interact with 5582 * the view hierarchy in this ViewAncestor. 5583 */ 5584 static final class AccessibilityInteractionConnection 5585 extends IAccessibilityInteractionConnection.Stub { 5586 private final WeakReference<ViewRootImpl> mViewRootImpl; 5587 5588 AccessibilityInteractionConnection(ViewRootImpl viewRootImpl) { 5589 mViewRootImpl = new WeakReference<ViewRootImpl>(viewRootImpl); 5590 } 5591 5592 @Override 5593 public void findAccessibilityNodeInfoByAccessibilityId(long accessibilityNodeId, 5594 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5595 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5596 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5597 if (viewRootImpl != null && viewRootImpl.mView != null) { 5598 viewRootImpl.getAccessibilityInteractionController() 5599 .findAccessibilityNodeInfoByAccessibilityIdClientThread(accessibilityNodeId, 5600 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5601 spec); 5602 } else { 5603 // We cannot make the call and notify the caller so it does not wait. 5604 try { 5605 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5606 } catch (RemoteException re) { 5607 /* best effort - ignore */ 5608 } 5609 } 5610 } 5611 5612 @Override 5613 public void performAccessibilityAction(long accessibilityNodeId, int action, 5614 Bundle arguments, int interactionId, 5615 IAccessibilityInteractionConnectionCallback callback, int flags, 5616 int interogatingPid, long interrogatingTid) { 5617 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5618 if (viewRootImpl != null && viewRootImpl.mView != null) { 5619 viewRootImpl.getAccessibilityInteractionController() 5620 .performAccessibilityActionClientThread(accessibilityNodeId, action, arguments, 5621 interactionId, callback, flags, interogatingPid, interrogatingTid); 5622 } else { 5623 // We cannot make the call and notify the caller so it does not wait. 5624 try { 5625 callback.setPerformAccessibilityActionResult(false, interactionId); 5626 } catch (RemoteException re) { 5627 /* best effort - ignore */ 5628 } 5629 } 5630 } 5631 5632 @Override 5633 public void findAccessibilityNodeInfosByViewId(long accessibilityNodeId, 5634 String viewId, int interactionId, 5635 IAccessibilityInteractionConnectionCallback callback, int flags, 5636 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5637 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5638 if (viewRootImpl != null && viewRootImpl.mView != null) { 5639 viewRootImpl.getAccessibilityInteractionController() 5640 .findAccessibilityNodeInfosByViewIdClientThread(accessibilityNodeId, 5641 viewId, interactionId, callback, flags, interrogatingPid, 5642 interrogatingTid, spec); 5643 } else { 5644 // We cannot make the call and notify the caller so it does not wait. 5645 try { 5646 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5647 } catch (RemoteException re) { 5648 /* best effort - ignore */ 5649 } 5650 } 5651 } 5652 5653 @Override 5654 public void findAccessibilityNodeInfosByText(long accessibilityNodeId, String text, 5655 int interactionId, IAccessibilityInteractionConnectionCallback callback, int flags, 5656 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5657 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5658 if (viewRootImpl != null && viewRootImpl.mView != null) { 5659 viewRootImpl.getAccessibilityInteractionController() 5660 .findAccessibilityNodeInfosByTextClientThread(accessibilityNodeId, text, 5661 interactionId, callback, flags, interrogatingPid, interrogatingTid, 5662 spec); 5663 } else { 5664 // We cannot make the call and notify the caller so it does not wait. 5665 try { 5666 callback.setFindAccessibilityNodeInfosResult(null, interactionId); 5667 } catch (RemoteException re) { 5668 /* best effort - ignore */ 5669 } 5670 } 5671 } 5672 5673 @Override 5674 public void findFocus(long accessibilityNodeId, int focusType, int interactionId, 5675 IAccessibilityInteractionConnectionCallback callback, int flags, 5676 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5677 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5678 if (viewRootImpl != null && viewRootImpl.mView != null) { 5679 viewRootImpl.getAccessibilityInteractionController() 5680 .findFocusClientThread(accessibilityNodeId, focusType, interactionId, callback, 5681 flags, interrogatingPid, interrogatingTid, spec); 5682 } else { 5683 // We cannot make the call and notify the caller so it does not wait. 5684 try { 5685 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5686 } catch (RemoteException re) { 5687 /* best effort - ignore */ 5688 } 5689 } 5690 } 5691 5692 @Override 5693 public void focusSearch(long accessibilityNodeId, int direction, int interactionId, 5694 IAccessibilityInteractionConnectionCallback callback, int flags, 5695 int interrogatingPid, long interrogatingTid, MagnificationSpec spec) { 5696 ViewRootImpl viewRootImpl = mViewRootImpl.get(); 5697 if (viewRootImpl != null && viewRootImpl.mView != null) { 5698 viewRootImpl.getAccessibilityInteractionController() 5699 .focusSearchClientThread(accessibilityNodeId, direction, interactionId, 5700 callback, flags, interrogatingPid, interrogatingTid, spec); 5701 } else { 5702 // We cannot make the call and notify the caller so it does not wait. 5703 try { 5704 callback.setFindAccessibilityNodeInfoResult(null, interactionId); 5705 } catch (RemoteException re) { 5706 /* best effort - ignore */ 5707 } 5708 } 5709 } 5710 } 5711 5712 private class SendWindowContentChangedAccessibilityEvent implements Runnable { 5713 public View mSource; 5714 5715 public void run() { 5716 if (mSource != null) { 5717 mSource.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED); 5718 mSource.resetAccessibilityStateChanged(); 5719 mSource = null; 5720 } 5721 } 5722 } 5723} 5724